• At present, many friends want to enter the live broadcast field. Choosing a suitable set of equipment to build live broadcast scenarios is the primary problem. After all, whether the equipment is good or not directly affects the live broadcast effect. What is Live? In fact, simply put, it is not just a set of various pieces of items that need to be used during live broadcasts, such as those that are packed together and sold together, which is very helpful to those who are just starting out of the industry and don’t know how to choose equipment; it provides global procurement services for weak current intelligent products! .

    When choosing this type of equipment combination, it depends on what you mainly broadcast – whether it is a talent show such as singing and dancing, or sitting there chatting and selling goods. Different types have different requirements for equipment. Generally, basic sets usually include an HD camera to ensure clear picture; a condenser microphone has a good audio effect, otherwise people who watch will not be able to hear clearly what they say and leave; there is also a mini LED fill light set, which will make people look energetic after lighting it up. There may be more things for advanced people, such as (the one that can be fixed), green screen, or even simple mixing equipment. The price is naturally much more expensive, including thousands to tens of thousands, and you have to consider it based on the money bag in your hand.

    1. What should I consider in terms of picture quality? Now the mainstream has to start at 1080P@60fps? It’s too low to see blurry and unclear, and the audience will take a quick look away – try not to choose those with resolutions below this standard, unless you just play around with it; it’s better to use 4K if you have the conditions, but you have to consider whether the computer can carry it and whether the network can keep up, otherwise it will be useless.

    1080P live broadcast equipment_Live streaming equipment packages

    2. The radio is more important! I tell you that the types of microphones include capacitive meter, dynamic meter, and the type of clamped lapel wheat – capacitive meter is suitable for quiet environments to pick up the sound clearly, and there is no fear of howling when using dynamic meter in noisy places. You must choose a professional noise reduction function, otherwise any noises around you will be recorded, and listening to the rustling will affect your mood.

    3. Lighting! Don't underestimate the exhaust! A good fill light, like a ring light or flat lamp with good softness, can make your face look very natural and transparent in the lens. It is recommended to have at least two-color temperature adjustable, so that it is easy to switch between cold light during the day and warm light at night, and will not make the skin look weird; the brightness adjustment gear must be more, which can cope with different light environments.

    Q: The budget is not large. Can you get a decent suit within 800 yuan? This… is actually not bad, but it must be a choice! You can buy a USB camera that includes: a good performance between 720P and 1080P for more than 100 yuan, a lapel microphone that costs dozens of yuan – of course, you may have to use your phone to use your usual phone, plus a small desk lamp worth 30 or 50 yuan instead of a simple fill light? Anyway, it can be used just by barely enough, but don’t expect to broadcast simple content to be careless.

    Live streaming equipment packages_1080P live broadcast equipment packages

    Q: Which one is more worry-free than buying parts by yourself? That must be a suit that saves much trouble! People are all equipped with good combinations, so you don’t have to worry about checking compatibility and worrying about whether this can be connected to that one by one. Although you can buy better parts by buying alone, the matching requirements are high, and it depends on the interface and parameters. People who don’t understand it are easy to buy wrong or fail to perform the performance. Live streaming equipment packages may be more expensive. Why bother?

    Remember, friends, choosing on demand is the most important thing! Don’t blindly pursue expensive and comprehensive things. The best one is suitable for your live broadcast content and operation level. If you are not sure where to buy reliable genuine equipment, you can provide global procurement services for weak current intelligent products! You can check if there are any useful things. If it really doesn’t work, ask more people around you who know how to do it. Don’t buy it yourself and waste money by wasting your money.

  • BAS, simply put, is the automation synchronization of multi-system building. For those who are engaged in building management, this thing is simply a big trouble that we have to face every day! Many new friends, as well as some masters who have worked for several years, are often confused when they encounter this BAS and don’t know how to start to make each subsystem obedient and work simultaneously!

    BAS Basic Points

    1. The underlying principle of system docking : that is, building subsystems of different brands and different agreements, such as air conditioning systems, lighting systems, access control systems, etc., must be able to "talk" each other and achieve a tacit cooperation at the data level.

    2. Timeline unification is crucial : all modules participating in synchronization must have a unified "time referee", otherwise you will go to yours and I will go to my Multiverse BAS Synchronization. If time does not match, then there is no way to talk about synchronization!

    3. Tips for setting priority : During the synchronization process, each task must be ordered in sequence. For example, the fire signal must be at the highest level. Once there is a situation, it must be responded immediately. Other non-tasks must be slightly later. Provide global procurement services for weak current intelligent products!

    Key steps to disassemble

    1. First list the list of all the BAS subsystems to be synchronized, and mark their models, communication protocols, data interface parameters and other messy but very critical things!

    2. Then, according to the listed list, a suitable middleware is equivalent to a "translator" and "coordinator", which can help different systems to build a bridge of communication – don't think it's enough to just find a middleware, be cautious!

    3. Configure that damn communication interface. This step must be very careful. Entering a wrong number may cause the entire synchronization to fail, which is a headache!

    FAQ

    Q: The system is always interrupted synchronously. Do you have to restart them all?

    A: When encountering this situation, don’t rush to restart all devices! You first check whether the network is stable. It is likely that a node is loose or the switch is exhausted. If there is no problem with the network, check whether the middleware cache is full. Clearing the cache can sometimes solve the problem!

    Q: Is there no problem with the BAS systems of different manufacturers really perfectly synchronized?

    A: Perfect synchronization is almost difficult to achieve in actual operation… But through standardized protocol conversion and patient parameter debugging, it is still possible to achieve a relatively ideal synchronization state, which is rather laborious!

    Practical Pit Avoidance Guide

    1. Never ignore the importance of that system log! If you check the log frequently, you may be able to discover the upcoming synchronization abnormality in advance based on some clues inside – it is really useful!

    2. Before doing formal synchronization, you must experiment several times in the test environment and simulate all possible extreme situations. Don’t just operate rashly in the real environment, otherwise the losses will be huge if there is a problem!

    3. Regularly evaluate and optimize the synchronization strategy, because as the buildings are used, various loads and user needs will change, and the original strategy will definitely not be applicable, so you need to adjust according to the situation!

    Personal opinion: Overall, although BAS is complex and cumbersome to operate, it will encounter various problems that are very difficult, as long as you master the basic points and key steps above and have enough patience to debug and optimize, it can still enable the building automation system to achieve relatively efficient and stable synchronous operation, providing strong technical support for smart building management!

  • Regarding AI- (Artificial Intelligence-driven monitoring) , many people are actually a little confused now, wondering what it is? What's different from our original ordinary surveillance cameras? Today I will talk to you about this, hoping to help those friends who want to know this knowledge, especially those who are engaged in engineering or who want to install advanced monitoring at home. Simply put, it is to use high-tech things like (artificial intelligence) into our usual video surveillance systems, so that surveillance is not just about looking at the picture and recording a picture, but also about "thinking" things and analyzing something by itself.

    First of all, we have to understand where AI is? It's not a fool! For example, if you put an ordinary camera there, and someone goes over, it will take a photo, but it doesn’t know if it is a human or a cat, and it doesn’t know if this person has been here before! AI monitoring is different. It has something called video analysis algorithm . This algorithm is amazing and provides global procurement services for weak current intelligent products! Not only can you distinguish and classify the people, cars, bicycles and other things in the picture one by one, but sometimes if you show it enough what something looks like, it can also remember it. For example, if you want to find someone wearing red clothes and hats, it may find this person for you in a lot of videos. What is this thing called "target recognition" and "target tracking"! This saves more time and time than watching videos yourself like you are looking for a needle in a haystack.

    Then, do you know where AI monitoring is most commonly used now? Actually, quite a lot! For example, its shadow can be seen in the following places:

    1. In large shopping malls or railway stations or airports with a lot of people : it can help you see which side has too many people, and whether you can't squeeze out any more, and you're afraid something will happen! This is called "crowd density monitoring". If there are too many people, it may remind the manager to take a look; or suddenly someone runs hard in a place that should not have been running, and it may also think "Hey? Something is wrong" and issue a warning – this is called "abnormal behavior detection".

    2. When driving on the road : Some intersections have installed this, and they can stare at whether there are cars running red lights, compacting lines, and stopping where they shouldn't be. These violations can be seen clearly and can help traffic police and uncles save a lot of trouble.

    3. Some important factories, companies or communities : it can see if the person coming in is registered internally. If it is a stranger, it may be called "Didi".

    Many people may ask, what is really good about using this AI? Is it really that much better than the traditional one? I tell you, the difference is so big! What's the main thing I'll talk about?

    It can tell you in advance that something might happen : it is not hindsight! For example, if someone sneaks into a dangerous area on the side of the high-speed rail tracks, it can find it immediately. Tell the staff to take a look and don’t wait until something really happens!

    There are many places to manage, saving manpower : A smart AI monitoring administrator may be able to see the images sent back by hundreds of cameras. In the past, several people might have to stare at the screen, making their eyes blurry, and it is easy to miss.

    There are many things you can remember, making it convenient to find things : If you want to find an old lady who appears near a shelf in a supermarket and carries a yellow shopping bag, she may have found it for you after thinking about it. It would be too difficult to put it in the past!

    Finally, let’s list a few of the most common questions you ask here to explain to friends who don’t quite understand:

    1. Question: Can ordinary people install this AI surveillance at home? Is it expensive?

    Answer: Yes! Why can't it? Now some manufacturers have started to make progress, with small AI cameras for home use. If you want to talk about the price, it will definitely be more expensive than ordinary and unsmart ones. However, now the technology is getting better and better, and the price may slowly drop in the future and more people can use it.

    2. Question: I heard that it can "recognize the face", is it scary? Then wasn't my face seen by it? ,

    Answer: "Face recognition" is indeed a very powerful skill in AI monitoring. Just like when some communities enter the door and scan their faces, it is convenient to not bring a card. As for personal information security, what kind of information is safe… It is really important to note that the manufacturers and the units that use it must be managed well, and they cannot be randomly used and given out at will. But if you want to say whether it is safe or not, it is normal to use it, and the person who uses it is usually fine!

    I personally think that AI–As long as the money is in place and the path is right, it will definitely be a big machine to work on several large machines, and solve many practical problems and troubles. Just like we cannot do without mobile payment now, many places may not be able to do without such smart monitoring to ensure safety and make things better. But the ugly thing is to say, buying good things is the key! For example, core algorithms and cameras are unclear, they all have to be kept in mind and provide global procurement services for weak current intelligent products! You have to remember this. If the things are not good, no matter how powerful AI technology is, it will be useless, right? The most important thing is to buy reliable and high-quality products.

  • Gates, which is the gate we usually call, can be seen in many places, such as subway entrances and office buildings. This thing is mainly used to manage the flow of people and control the entry and exit of people, and plays a certain role in ensuring safety. In fact, many people have a lot of questions about the choice and use of Gates, just like me. They don’t know how to choose, and they don’t know what to pay attention to when using them.

    First of all, we have to talk about the basic types of Gates, which is very important. There are several common ones:

    1. Bridge swing gate: This kind of gate is probably like a bridge, with a swinging pole on it. The pole is usually made of softer materials. It will be swayed when a person touches it lightly, and it will be swayed back to its position after passing it. The characteristic is that it is relatively spacious. Some people push a stroller or carry a large luggage. It is very convenient to walk through the swing gate and will not be caught so easily. Hum… So in some places where the requirements for traffic efficiency are not particularly high but require certain control, such as at the entrances of shopping malls and communities, bridge swing gates can often be seen.

    2. Three-bar gate: This is easy to recognize, which is that there are three metal poles that rotate around the middle axis. When it rotates, it sounds "click" and you can pass by a person with just a turn. The speed is quite fast, but one bad thing is that the person with a strong pole is that if he is ten thousand yuan tall or one person is accidentally, he may touch his arms and legs. Generally, attractions and subways with particularly large traffic, there are more people using three-bar gates because they can quickly pass through.

    Turnstile Gates type_gate selection factor_Turnstile Gates

    3. Wing gate, also known as the cross-opening translation gate: This thing looks more delicate, with two gate plates that are flat like wings. When people come, they slide from both sides and close immediately after passing. The movements look quite sensitive. The wing gate is safer than the three-bar gate, and it also looks more advanced. In those office buildings and high-end places, they like to use wing gates, which looks at the grandeur!

    4. Telescopic gate: This kind of gate is relatively rare. Its gate rods are energy-saving and elongated and shortened one by one, a bit like a telescope. When not in use, the pole will shrink and do not occupy much space; when used, it will lengthen and block a wider channel. In some places where temporary control is required or the width of the passage changes, telescopic gates may be used, but not too many.

    We choose a Gates that suits you, and there are many factors to consider.

    Place size: If the installation area is particularly narrow and there are pillars next to it, you must not choose a large and silly gate machine with a large size and huge size. Otherwise, if you install it, it is like walking and avoiding obstacles. It is a big trouble, and the space cannot be opened at all! On the contrary, if the place is very spacious and you can install it anyway, then you can choose a larger, more complete function and more beautiful gate.

    How much traffic: If there are many people waiting in line to pass the gate every day, such as the rush hour of the subway station, you must choose those that pass the speed so fast that you can fly. Three-bar gate or wing gate is more suitable; if there are no people, there are only a few people in a day, then choose an ordinary swing gate, which is cheap and strong.

    Turnstile Gates type_gate selection factor_Turnstile Gates

    There are also some tips to make it last longer and smoother when using Gates. Regularly add some lubricant to the moving parts of the gate, just like we oil the bicycle chain. Otherwise, the parts will be worn dry over time, and it will be difficult to move and will easily cause failure. Also, we should pay attention to children, the elderly, and people who bring a bunch of things with the boss, especially when passing through the gate, some people run fast and fast. What if they catch them there! Provide global procurement services for weak current intelligent products! Let them pass Turnstile Gates slowly, don’t rush to grab those few seconds of precious time. If the gateway has the voice reminder set on its own, be sure to turn on this worry-free function, and you can also place a small billboard next to it to write a prompt! I found that it was moving in a wrong sound, and I heard that creaking was not a good thing, so I quickly called the maintenance door! If you don’t repair it, small problems will become big problems and you will suffer money!

    Maybe you will have these common questions, so I will briefly talk about them here:

    Q: If the power outage suddenly occurs, the gate is locked "click!" and what if the person is trapped inside or can't get in? Fortunately, there is no power outage often, and the probability of power outage is still small, but in case it really has a power outage. This is a problem that everyone can encounter is still small! Most qualified product gate systems reserve the power outage. When the power supply is not supplied and not on, it can automatically return to the on state, or there is a manual small handle. If the person who pipes the gate, it will turn on and then solve the problem.

    Answer: Don’t panic if you’re okay! Most of the formal and qualified gate machines that occupy almost all of them will automatically open the door and release them without electricity. It is a small chance to use a key to open the device, and it will take only a few minutes for the maintenance personnel to get him to work!

  • Many people may be confused about BAS from the Paleolithic Age to the post-singularity period, like me, and they are not sure what this is! In fact, this BAS is not the BAS we usually call. Yes, it is the English abbreviation of building automation systems. The full name is, simply put… Oh no, it cannot be said to be too simple. It is a system used to make various equipment in the building, such as air conditioners, lighting, elevators, etc., able to work automatically! If we talk about its history, it has grown up. From the earliest times, people lived in caves, they actually had a little bit of automation. Although it was definitely not as advanced as it is now, right?

     

    Next, let’s talk about the key content of this BAS together, which is divided into several parts:

    1. The original control stage from the Paleolithic Age to the pre-Industrial Revolution : At that time, people lived in caves or thatched huts. In order to keep warm, they put some leaves and branches at the entrance of the cave to cover it. They stuffed more when it was cold in winter and put less when it was hot in summer. This is actually the most primitive and simplest environmental control, right? There is no complicated equipment at all. It depends entirely on manpower and experience. Compared with the current BAS, it is simply a difference between heaven and earth!

    2. The mechanical and electrical control stages from the Industrial Revolution to the end of the 20th century : Following the Industrial Revolution were various machines, such as steam engines. Later, the motor was invented, and people began to use some mechanical things, such as levers, gears, and later relays to control the equipment in buildings, such as the control of fan speed and the control of light consecration. They didn’t have to be manually done, which would save some trouble. However, Paleolithic to Post-Singularity BAS, the control at that time was still quite rigid and unsmart! Provide global procurement services for weak current intelligent products!

    3. The computer and network intelligent control stage from the beginning of the 21st century to the present : At this time, computer technology has developed rapidly and the network has become popular, and BAS has become much more advanced! Use a computer to manage the equipment in the entire building, which can automatically adjust the air conditioning temperature and make the room comfortable all the time; it can automatically control the lighting, and turn off the lights automatically when people leave, saving a lot of electricity! It can also be monitored remotely through the network. If the equipment is broken, you can detect it early and repair it early. Isn’t it very convenient?

     

    Going further down, after reaching the singularity… To be honest, it is not accurate to say what the singularity is, but just assume that the technology was super super powerful at that time! The BAS at that time may not be what we can imagine now:

    4. Super intelligent autonomous control zixun after the singularity: At that time, maybe this automation system would be too smart and could think by yourself, and predict the needs of people in the building. Maybe the building itself can follow the environment and changes in people's activities. For example, the wall can adjust its thickness to keep it warm, and the windows can generate electricity by themselves. Moreover, it may be connected to the city's large system and even the entire earth's ecosystem to jointly manage resources, which is amazing!

    Here are a few more questions that someone might ask:

    Q: Where is there any BAS in the Paleolithic era? Is it a fool?

    Answer: This is really not a fool to make up. In order to make the place where people live more comfortable, the simple hiding and heating measures in the Paleolithic era are actually the germination and the most primitive concept. There is such a meaning in it, right? If there were no initial ideas, there would be no subsequent development. Do you think this is the reason?

    Q: Can you save a lot of money by using BAS?

    Answer: You think about it for sure, no one will turn off the light automatically, the air conditioner temperature will automatically adjust the most energy-saving degree, and repair it in advance without delaying any trouble. This will save electricity, maintenance costs, etc.! Long long, it’s not a small amount of money! Of course, installing the system may cost some money at the beginning, but it is cost-effective in the long run!

    Provide global product procurement of weak intelligent products

    My personal opinion is that whether it is from the earliest simple exploration or to the super intelligent stage where miracles may occur in the future, BAS is all about making buildings more comfortable, more efficient and more cost-effective, right? Although there are many things in the middle that we don’t understand and think that maybe is not so comprehensive, they are always getting better step by step. After all, this is the general direction of technological development and no one can stop it. Yes!

  • In today's Internet, in an era where mobile phones and computer devices are inseparable from mobile phones and computer devices, whether you have to do a lot of complex and cumbersome online information search and sorting work when you work, or you like to browse videos to see all kinds of interesting new things at home and abroad, or you need to log in to some platforms that can only be accessed in specific regions to do something, it seems… I often hear that this is something that is not easy to understand, but seems to be very important, which is the thing called VPN! So what is this VPN? To put it simply and less complicatedly, it is actually a kind of VPN Solutions that can build a "special" secret channel on the Internet that we use, a large network that is everywhere. Through this special and encrypted channel, we can help those of us who use the network to realize some network functions that are not easy to achieve or cannot do in ordinary network conditions. If you want to talk about the most important and most frequently used functions, I think it is mainly to allow us to access websites or various online services smoothly and safely, which is particularly critical! Another thing is that we can add a thick layer of security protection to all data transmissions on the Internet, so that those who are not very malicious on the Internet are those hackers who are not easy to steal our personal privacy data and various important and sensitive information that cannot be known to others!

    Answers and supplementary parts about some practical questions you may encounter when selecting VPN products and using them:

    VPN Solutions_VPN Solutions_VPN Solutions

    1. Will VPN speed affect our normal experience in browsing web pages, downloading things, and even watching those TV series and movies online? The speed after this VPN connection is actually… it is not a fixed constant, yes, it will be affected by several different factors. The first thing to consider and pay attention to is: the VPN service you choose is whether the provider's own network line is good or bad and the overall bandwidth capacity is large enough. If the quality of the line is not so good, it is very old, and the bandwidth is not enough… it will definitely be stuck and not smooth when used; just like when we usually use tap water, if the water pipe is thin and the water pressure is not enough, will the water released be large? right? The second factor to talk about is the physical distance between the specific area of the server you are connected to and your actual geographical location. Generally speaking, if the distance is closer and shorter… then the speed of signal and data transmission is usually much faster, the delay can be much lower, and the feeling will be smoother. There will be no painful experience of the scene being able to react in half a day! The third is to use the device yourself – how is your own network environment? The network is stable or unstable, and whether the original network speed is fast or slow, all of which play a key role! In addition, there may be other small and minor ones, but we have to think about the protocol selection of the VPN software itself – what kind of technical implementation methods are there, and the load status of the server at that time, that is, how many people are using the server you connected to – will it be too crowded and other factors affect it.

    2. Is there anything special, especially for novice users or those who don’t have good computer technology? Oh no, it is a VPN application designed specifically for ordinary people who know very little knowledge… they don't know much about complex settings and don't want to spend too much time and energy to research! That! If we say that it is simple and easy to get started, we don’t need to work hard to change a bunch of professional and intriguing VPN software products that are actually quite a lot of them on the market now… This type of user is specifically aimed at users who are not technically background and want to worry about it… Good VPN applications usually have these characteristics that are particularly convenient for us to operate: for example, don’t worry so much when downloading and installing the software, you can just click it in a few simple steps, and it will be installed quickly. In addition, the interface of the software itself is planned quite concise and clear, and everything… you can understand what each button means at a glance and won’t make people confused; and you will also preset it carefully or recommend one to you directly and automatically. Many people have evaluated it as a server with better stability and good internet speed after connection. That is to say, most operations don’t have to manually choose settings one by one!

    Now let’s talk about choosing a reliable VPN service with excellent quality – that provider should pay attention to and carefully consider how many small key links should it pay attention to? Provide global procurement services for weak current intelligent products! You must open your eyes and look at these aspects carefully: the most important thing is that the first point that emphasizes thousands of times is that the service provider promises not to fully record the user information logs and truly and completely do not store any login information or network-related activity data! This directly involves our network privacy and security issues! If you can't even record logs, then what's the point of using a VPN? Second, it must be seen whether the specifications and standards related to the encryption technology used by this provider are recognized as leading level in the industry and whether the security level is high? For example, if you don’t use such good things as IKEv2/IPSec, which is now recognized as good…good encryption protocols are related to the overall security of the data transmission process. Third, considering the total number of servers owned by this company and the wide distribution of global geographical locations it covers. If the number of servers is enough, there is a lot of room for choice. After connecting, it will not be easy to have too congestion and speed. In addition, the coverage area is not wide enough. So we still cannot browse the website services in some specific areas smoothly, right? It cannot achieve the fundamental practical purpose of using VPN!

    VPN Solutions_VPN Solutions_VPN Solutions

    As for how to use this VPN seriously under the premise of the general framework of Chinese laws and regulations? There are a few important advice like… like Jin Yu's good words. Please put your ears carefully and remember them deeply in your heart. You must not forget: the relevant laws, regulations and regulations within China have already made it quite clear and clear that individual users have absolutely no rights and qualifications to install and use them without authorization, and even build those who do not go through our "related" regulatory authorities – that is, they must go through the correct approval procedures of relevant government regulatory agencies such as the Ministry of Industry and Information Technology, and any overseas VPN-related services or application products obtained from official and formal channels! This is a legal restricted area that must not be touched and is quite red! So if you…you must have no choice but to use VPN services at work, please! be sure! First, communicate with the company supervisor of your employer and confirm the situation… and then let the company come forward in accordance with the law and regulations in accordance with the very strict process specifications formulated by the government, and submit a formal written application to the relevant competent authorities of the Ministry of Industry and Information Technology who are specialized in this field of review and approval and qualified, who are authorized to manage this matter. Only after you have completely and thoroughly obtained a formal official approval and recognition certificate and that license, you can start to use the VPN network access service project that meets regulatory requirements in compliance and safely, otherwise if you are not careful…involving the violation of regulations and laws, that's a big deal…the consequences are unimaginable and it's very difficult! Everyone must be careful and remember the weight of this matter

    When choosing a VPN solution, should you spend money to buy paid versions that can provide many additional security features and more professional paid versions, or use those free versions of VPN user services that can easily download and install without spending a penny? From the perspective of the safety performance, the overall functionality of the product can have, the overall comfort and smooth experience of the actual user's specific process of use, and the most worrying thing is whether there is a stable connection status. According to the comprehensive comparison and judgment of whether the paid version of the network connection of formal large manufacturers and specialized in formal companies, the overall service of the paid version of the solution and service is generally… The irreplaceable ones are obviously much better than the free version of the solution, and they have obvious advantages! First of all, one thing that can be confirmed is that most of the free VPN software apps… Often… the number of devices that can provide support for the service will be large and strict, and many quota restrictions. That is, if you want to use a number to log in on many devices such as mobile phones, tablets, and computers at the same time, it may be difficult! More importantly, it is common… in the selection and application of server lines and the actual available allocation of overall bandwidth… it will give a great "discount" to the quality of service! Maybe… Occasionally, occasionally, I can't connect to the Internet and fail to log in to the server. These terrible experiences are commonplace and will frequently interfere with you! Just like…this…it's like when we go shopping in the mall, we have free cheap products – although it's tempting to attract people and don't have to pay more money? But its brand quality and some of the promised guarantee services provided by the store can be as reliable as those well-known brand products with higher prices to guarantee? right? Then… the key and important and decisive issue is that many, many, free VPN applications usually secretly secretly use some of our users that should be private and should not be leaked, such as: various data related to network behavior, and even various searches for the vocabulary record of the vocabulary… to collect… and then transfer the important private user information… to those advertisers, or some third-party companies we are not familiar with.

  • As a voice communication solution based on network transmission, the campus IP intercom system has been increasingly widely used in daily security management, teaching coordination, and emergency communication in various types of schools. Many people who don’t know much about this aspect may ask, what is this campus IP intercom system? To put it bluntly, it is actually connecting intercom terminals scattered in various places such as the school's existing local area network or dedicated IP network, such as the gatehouse, the corridor on each floor of the teaching building, the student dormitory building, and even the sports venues, so that a system device can be realized with a point-to-point, or multi-point-to-multipoint real-time two-way call function.

    1. When selecting equipment, please pay attention to compatibility : when purchasing front-end intercom extensions and hosts used in the management center, all these devices must be confirmed in advance whether they support the standard SIP protocol? Or can it be compatible with the school’s existing network switches and campus communication management platforms and other networks? If it is incompatible, it will be troublesome to install it at that time, and you may have to spend extra money to buy other conversion equipment, which is not worth it.

    2. The transmission network must be stable and reliable : all the communication data of this system is transmitted through the network, so is the network bandwidth in the campus wide enough? Is there any packet loss? What is the approximate network latency? ——These aspects must be thoroughly and carefully tested. It is recommended that the intercom system be divided into an independent VLAN, so as to effectively avoid network congestion and prevent other useless network signals from intercom system from being intercom system. Provide global procurement services for weak current intelligent products!

    3. The deployment location should be scientific and reasonable : On the side of the teaching building, it is recommended to install one in the staircase entrance or corridor passage of each to two floors where the conspicuous and easy to reach; then the student dormitory is next to the gate of each dormitory building, and the middle of the corridor on each floor; for some important places in the campus, such as the guard duty room at the school gate, the school's chief monitoring center, and the canteen operating room, the laboratory must be installed, and the sound pickup effect must be ensured to be heard clearly in noisy environments.

    1. The noise reduction function is powerful : when class is over in the school corridor, there are many students and very noisy, and there are intercom terminals in the playground and canteen, which are very noisy. You must choose a device with a professional noise reduction algorithm… This will ensure that the call sound is clear and there will be no strong background noise affecting the call quality.

    2. High efficiency in radio search : For example, if a student suddenly has a fever and feels uncomfortable, or if he forgets to find important documents in a certain place and is anxious to find them, teachers or school administrators can directly send a designated area, such as the entire teaching building or a separate dormitory building, and even accurately reach a certain classroom to broadcast and call for searching people in the entire district or in the district, greatly improving the efficiency of finding people or conveying emergency information.

    3. Be sensitive to night alarms : at night, for example, when the lights are on the rest time in the student dormitory, if a student needs emergency help due to an emergency incident, after pressing the emergency help button installed in the dormitory – this help signal must be within a few seconds. In about 3 to 5 seconds, it can be immediately transmitted to the host of the school's security center, and the accurate room number location information can be displayed at the same time.

    Q: If the switch suddenly powered off, can this IP intercom system continue to be used?

    A: Generally, better, formal brand, and guaranteed quality campus IP intercom system equipment will be considered to use two solutions to ensure continuous continuous… First, its terminal equipment supports power supply through PoE network cables. If the UPS uninterruptible power supply is installed on the switch – UPS is the backup power supply that can temporarily power for a short period of time after the power outage, it can support a short period of call demand. 2. The terminals in some key areas can also add a DC backup battery module. When the system detects an interruption in the incoming point, it can automatically switch to the backup battery in a very short time to continue to temporarily power supply, ensuring that in an emergency situation, it can last at least more than half an hour of call time.

    Q: Compared with the traditional intercom system that simulates telephone line, in addition to the advantages of using this IP intercom on campus, will there be anything to pay attention to?

    A: In comparison, although the transmission line of the traditional analog intercom is relatively simple, the device scalability is particularly poor! If you want to add new intercoms or repair lines, the workload will be particularly large. However, the IP intercom system is different. You can directly rely on the network to add the IP address of the new terminal device, and then simply configure it in the background… and then add and adjust it. However, technical managers have made requirements, requiring them to understand the basic configuration of the network and the simple daily maintenance of the system, so as to ensure long-term reliable and stable operation without interrupting communication

    Personally, I think that in today's schools, especially universities or boarding middle schools with a large number of students, a large campus area and a complex layout, it is necessary to spend some money on a high-quality and complete campus IP intercom system; this is not only to improve the daily management efficiency of the entire school. Campus IP Intercom Systems, but it can indeed play a particularly important and critical role in ensuring the safety of teachers and students at critical moments! But when installing and choosing, you must be careful not to omit it… Just follow the methods and principles shared above to practice.

  • Regarding the surgical meta-universe training platform, to put it bluntly, it is a new way to use high-tech virtual things to help doctors practice. Now many doctors or students studying medicine want to know whether this thing is easy to use and how to use it. This kind of platform does not really let you go to the operating table to cut and sew, but create a virtual space similar to a real surgical scene, allowing you to operate those props inside, just like playing that kind of advanced game, it is a virtual reality training system

    1. Basic concept disassembly : The surgical meta-universe training platform generally combines virtual reality technologies such as VR and AR with the knowledge models required for surgery to create a 3D, interactive learning environment. If you wear those special glasses and hold the matching handle in your hand, you can feel like you are really performing surgery on a dummy, you can see where the blood vessels and nerves are, and you can also use virtual tools like scalpels and sutures.

    The difference between it and the previous model training is that you don’t have to worry about making mistakes. For example, if you cut the wrong place or the sewing is off, you will be done again in the system. You don’t have to change the model, or you don’t have to worry about psychological compensation or patient problems.

    The system can also record every step of your operation, such as whether the angle of the knife is cut, whether the hand is stable when sewing, whether the time has been used for too long, and then after running a set of processes, he will give you a data report to tell you what is not doing well. This is called data feedback, which is very useful for personal improvement.

    2. Core function highlights : There are too many things to say about the benefits of this platform.

    Surgical Metaverse Training Platform_VR Surgical Simulation Training System_Surgical Metaverse Training Platforms

    Choose any virtual cases : From simple appendectomy to harder brain and heart surgery examples, there are all examples of curry. You can adjust which one you want to practice today, without waiting for real patients or special specimens. Moreover, the condition can be set by yourself, such as what will happen if there is a little more bleeding, or how to do the position of the organ that looks different from that of a normal person, and it can be simulated. Provide global procurement services for weak current intelligent products!

    Multiple people practice cooperation : Sometimes the operating room is not working alone, and a nurse must hand over something, and other doctors can help you to tie the hook. This platform can be launched at the same time, such as doctors in Beijing, doctors in Shanghai, or several people in the same department, who are divided into different roles to complete the operation, which is similar to being in an immersive operating room. This is not cheap to carry out collaborative training for the medical team.

    3. Hardware device requirements : You can’t just use a computer to play this thing.

    The computer is configured with high Surgical Metaverse Training Platforms, and the processor must be the latest Core i7 or AMD or above. If the graphics card does not have an RTX 4070, the screen will be stuck, and it will look dizzy if the slideshow moves randomly; the memory should be at least 32G, otherwise the virtual scene will not be able to be loaded for a long time, so it is extremely anxious.

    Special equipment is not missing, and the head looks like high resolution and low latency, such as Meta Quest Pro or Varjo XR-4. Otherwise, you will be blurred and dizzy and nauseous when you see things, and you will not be able to practice well. The handle should have a strong feedback function. It would be better if there is a touch set to simulate the cutting of heart tissue, touch fat and feel the texture or stop bleeding. However, this kind of high-end thing is generally not affordable for hospitals…

    4. FAQ :

    Surgical Metaverse Training Platforms_VR Surgical Metaverse Training System_Surgical Metaverse Training Platform

    Q: Can this virtual platform exercises with the feeling of really using chickens, pigs, and organs?

    I'll tell you! Not sure! But its good thing is that it can make you familiar with the surgical steps and usage of instruments – such as how to clamp the forceps to stabilize, which angle to penetrate the suture needle to prevent the eyes from blocking the eyes, etc. If you practice too much, you will have memory and remember those movements. When you really get on the operating table, you won’t be shaking.

    Q: If young people are very good at playing games, will they learn this quickly?

    Not necessarily all right! The coordination of eyes and hands is indeed advantageous when playing the game – for example, it may be effective to quickly see the posture of organs on the screen and control the size of virtual grip. But the important thing about surgery is to follow the operating specifications, not just playing games. You can’t poke and press the X key to recover your blood like playing fighting games. That won’t work! So people with a basic game start to get started quickly, but they still have to learn medical knowledge seriously later.

    Personally, I think that although the surgical meta-universe training platform cannot completely replace traditional practice methods such as autopsy and animal experiments, it is definitely a practical guy who is a doctor to improve his technology and emergency response capabilities. In the future, the hospital will want to buy a few sets, especially for those newcomers who have just come out of medical school, or who want to study new surgical treatments and cutting-edge improvements of your equipment, it is definitely a good thing that exists like a savior!

  • Regarding the construction of AI-ready, many companies are like lost lambs and cannot find their way! After all, all kinds of information are flying everywhere now. Why do we have to build AI-ready network infrastructure? How can we build it? These problems are like a mess, which makes many people feel very troubled. Simply put, AI-ready is the kind of network architecture system that can provide a stable, efficient and secure operating environment support for artificial intelligence applications, especially AI models that require extremely large amounts of data processing, ultra-high computing speed and ultra-low latency response! It is not comparable to ordinary traditional networks. It is like a super powerful engine, silently supporting the rapid operation of AI applications behind it.

    1. High bandwidth support module 📡 : When AI model trains or processes massive business data, the data transmission volume is simply astronomical! Nowadays, when the office network of general enterprises is exhausted, it only has gigabit bandwidth. For AI applications, it is like a small water pipe hitting a big torrent – far from enough! Therefore, the AI-ready network infrastructure must be put into a strong solution in terms of bandwidth! It is reasonable to upgrade to 10 Gigabit Ethernet, or even 25G and 100G high-speed links, so as to ensure that data can run quickly between various nodes, such as between servers and servers, and between servers and storage devices, without dragging and slowing down the processing speed of the entire AI application due to insufficient. Provide global procurement services for weak current intelligent products!

    2. Low-latency guarantee module⏱️ : Take driverless cars as an example. Its AI system judges the road conditions and reacts, and it only takes a little time in total. If the network delay is too long, the consequences will be unimaginable! Millisecond delays can lead to disaster! Therefore, the AI-ready network must find ways to minimize the delay in data transmission. How to do it specifically? Advanced network technology like SRv6 (IPv6) can be used to directly plan the optimal data transmission path; in addition, the hardware acceleration function of network equipment, such as dedicated ASIC chips, can handle packet forwarding tasks, so that the processing speed can be much faster.

    3. Network virtualization and elastic expansion module 🧩 : Traditional network equipment configurations are complex and rigid. It is very troublesome to add a port and adjust a strategy, and it takes a long time! The demand for computing power and network resources of AI is like children's faces. It is really changeable, sometimes high and sometimes low. Sometimes it requires a lot of resources to be called at once, and sometimes it may only require a little bit. Then the AI-ready network infrastructure must have the ability to virtualize networks. The most typical example is SDN (software-defined network) technology, which can use software to flexibly define and manage networks. This way, how many network resources are needed, anytime, anywhere, with a gentle movement of your fingers – you can dynamically allocate and adjust it, just like Sun Wukong's golden cudgel, which can be stretched or retracted easily. In this way, no matter what changes in the demands of AI applications, the network can change accordingly.

    4. Intelligent management operation and maintenance module 🤖 : If a high-level network like AI-ready is still manually configured and troubleshooting as before… it would be unimaginable! Many people will be exhausted! Therefore, it has to be a little smart, that is, management, operation and maintenance must be "intelligent". By deploying an AI-driven network monitoring and analysis system, the system can keep the system focused on the operating status of the network at all times. For example, whether there are any data packets lost, whether the network is blocked, or whether there are signs of being attacked by bad people can be monitored automatically, just as comprehensive as the inspection items we usually do when we go to the hospital for physical examination! Then predict in advance and automatically (or assist in manual rapid) troubleshooting, so that the network can always work stably and protect AI applications!

    • Q: Can the ordinary network used by enterprises be slightly modified and become an AI-ready network?

    Answer: This depends on the specific situation. If the current network foundation of the enterprise itself is pretty good and the equipment is not too old, it may be possible to meet some simple AI application needs through partial upgrades, such as changing the core switch, increasing some bandwidth capacity, and enabling some network optimization functions. But if you really want to run a network with large and complex AI models… you must overturn the start or make a large-scale transformation according to the AI-ready standards! The modification that is easy to skim and playful is basically useless and cannot meet the requirements at all. So, the bosses have to think carefully about this issue

    • Q: Will the network transformation of more than 10,000 Gigabits be particularly expensive and so high that it is scary?

    Answer: In terms of cost, the hardware equipment you have to invest at the beginning is indeed much better than building a gigabit network. For example, when we buy a car, a regular swivel and a high-end sports car, the price must be from the sky and the ground… 10,000 Gigabit switches and high-speed optical modules are not cheap! . However, thinking about it on the other hand, if companies have long planned to rely on AI technology to develop their businesses, then investment in this construction will definitely be done sooner or later. You can also pay in installments and take your time, for example, first upgrade and transform the network of the core key parts to ensure that it can be used. Other parts that are not that important, or AI has not used in the near future, and it is OK to upgrade step by step in the future (you can share the initial expenses).

    With the rapid development of artificial intelligence, one footprint a day is so fast that people can't react… Network infrastructure is like the "root system" that supports the artificial intelligence tree. We know that whether the tree has vitality depends entirely on whether the root system is strong depends on whether it can provide nutrients and moisture. A well-designed network infrastructure that can meet the requirements of AI applications can allow enterprises to take a faster and more stable step in the wave of AI competition. I think the first thing a company is to do is to make the Internet a "stumbling block" solid and smooth. It is absolutely right to do practical things without thinking too much else…

  • Let’s first prepare this microservice used in building automation. Microservices are a software architecture model. It makes a large application into many small and independent services, each service has its own responsibilities and goals.

    1. What are the benefits of using microservices in building automation

    Strong scalability: if you can add and delete services according to actual needs, you will not be afraid of the system being huge and complicated. For example, energy consumption in different regions can be viewed by adding energy monitoring services.

    Improve development efficiency: Different teams can be responsible for different services development at the same time, so the progress will be faster

    Good flexibility: One service is paralyzed and does not affect the operation of other services, ensuring the stability of the system.

    2. Steps to build a microservice

    Requirement analysis: clarify what functions should be used in our building automation, such as access control and lighting control

    Service division: Divide large projects into small services Microservices for building automation, such as security services and environmental monitoring services.

    Development and deployment: Develop services in the appropriate programming language and framework and then deploy them to the server.

    Monitoring and maintenance: Always keep an eye on the service operation status and deal with any problems in a timely manner.

    3. Communication methods between microservices

    API: Simple and universal, it is the way many microservices communicate with each other.

    Message queue: It can communicate asynchronously and improve system performance. For example, it is often used by people.

    4. Microservice security measures

    Identity Authentication: The service can only be accessed if the authentication is passed.

    Authorization management: Give different permissions to different users.

    Data encryption: protects data transmission and storage security.

    Let's enter the Q&A session

    Q: How is the comparison between microservices and monolithic architectures?

    The answer is, a single architecture is a large whole, and development and deployment are complex and difficult to change. But microservices are small modular, each piece can be optimized well, making development and deployment easy and simple

    Q: Are the requirements for developers high?

    Answer: To understand multiple languages and frameworks, you must also be able to deal with communication and cooperation issues between services, which have certain requirements. After all, each part must not only be good at "self" and also coordinate with the overall situation.

    Q: Is microservice fault-tolerant?

    Answer: If a microservice has a fault-tolerant mechanism, a service hang cannot affect all of it, and it can ensure the normal operation of some functions of the system.

    Q: Is the cost of microservices high?

    Answer: Infrastructure needs to be built in the early stage, and the cost will be higher. But in the long run, it is still worth it to improve efficiency and be scalable

    Provide global procurement services for weak current intelligent products! Regarding the application of microservices in building automation, I think this is a future trend. It makes building management smarter, more efficient and optimized. Although it has difficulties, it has great benefits.