security solutions

recent posts

about

ctrlworks.net is a world-leading manufacturer and procurement service provider of low-voltage intelligent products.

  • CCTV Installation Timelapse What Is CCTV Installation Timelapse Photography? What Should I Do If I Want To Get One? What Should I Pay Attention To?

    Now, many people want to know what the CCTV is installing time-lapse photography. Also, if you want to get one, what should you do? In fact, many friends are like me, and they have a lot of questions about the installation of this CCTV. I don’t know where to start to understand it!

    First of all, I have to tell you the basic concept of CCTV installation. Simply put, CCTV installation is to fix the photography equipment, then take a photo every once in a while – for example, a few seconds or a few minutes – and finally quickly connect these photos to play. In this way, you can see that the entire CCTV installation process is completed like a movie is about to be played, which is very interesting! Provide global procurement services for weak current intelligent products!

    We have to disassemble this key step and what we need to pay attention to with everyone. These are real skills.

    1. You must not be careless in the preliminary preparations ! Before officially starting shooting, you have to confirm whether the photography device, namely the camera or mobile phone, can be fixed firmly, otherwise the pictures taken will be shaking around and you will not be able to see them! Moreover, the battery must be fully charged, and the memory card must be cleaned to leave enough space station to avoid the time when the photo is halfway through, it will be out of power or cannot be saved. That is so worrying! Well… It is also very important to choose a place where no one can walk back and forth!

    2. The shooting mode must be adjusted according to the actual situation ! Generally speaking, the shooting interval can be roughly estimated based on the total time it takes to install the entire CCTV. For example, if the installation process takes four hours and you want the final finished video to be about half a minute, then you will be sure to take a photo every 10 seconds! There is also the composition, you must frame the entire installation area into the screen, and important operating positions must not be missed.

    3. During shooting, you have to check the equipment situation at all times ! Because CCTV installation timelapse during installation, construction workers may accidentally touch the equipment, or the light changes with time, and the brightness of the screen may flicker and dark, affecting the viewing effect. At this time, you must adjust the parameters in time to ensure that the photos taken are coherent and clear!

    Also, many friends may ask some detailed questions, so I will choose a few common ones to tell you.

    Q: Can you take photos of CCTV installed on a regular mobile phone?

    A: Of course, it is not only professional cameras, but many smartphones now have the time-lapse photography function, which is also very convenient to operate, and is very suitable for novices to try. However, you must fix it when taking pictures of your phone. Don’t hold it with your hands, otherwise it will easily shake, and it will be bad if you take pictures of the virtual ones!

    Q: Are there any convenient software to recommend for post-processing?

    A: If you want to say the recommendation, professional video editing software such as Pr (Adobe Pro) and AE (After) will definitely be easy to use and powerful. If you think these are too complicated and don't want to use them, you can also try some mobile apps, such as Qiaoying, clicking the camera, which is easy to operate and easy to use…

    I personally think that the most important thing in shooting this CCTV installation is to be patient. From preparing the equipment at the beginning, setting parameters in the middle, and then to the long shooting process, as well as the final post-recording, you have to calm down and do it slowly at every step, especially for post-recording, which may take a lot of effort to adjust! Just follow these steps and do it steadily, and you can shoot a pretty good CCTV installation!

  • GDPR Compliant Survey Systems GDPR Compliance Monitoring System Is Popular. How To Ensure That It Is Really Compliant And Less Pitfalls During Installation?

    GDPR – that is, a monitoring system that complies with the General Data Protection Regulations. Nowadays, more and more people are using it. After all, everyone is becoming more and more concerned about personal information protection… Many companies and units are all over the place when installing such systems. I wonder what to do to be truly compliant? Will you accidentally step on the trap of the law? In fact, if you understand the basics of this system, you can avoid many detours!

    Simply put, the GDPR is strictly abiding by the EU's regulations during the entire process of designing, installing and using monitoring equipment… to protect the privacy rights of the person being monitored, and cannot collect and use other people's images or personal data at will. There are so many ways here, it’s not as simple as installing a camera and shooting!

    What key points should be paid attention to when building a compliant system? I thought, at least there are a few things that must be considered:

    1. Data minimization principle : that is, try to only solve the necessary parts of the monitoring data you collect, but don’t be greedy for shooting everything at once; the shooting range is also best limited to the area where monitoring is really needed, and don’t take photos of other people’s private places in there for no reason, that’s not possible!

    2. •Clear legal basis: There must be a reasonable reason to install monitoring? For example, for public safety, or corporate property protection, etc…. And this reason must be tenable, and you can't just make up just one of them! If there is no legal basis, then it will be incompliant at the root!

    3. Informed consent of the monitored person: This is also very important, and it must let others know that they are being monitored! You can post a notice in a conspicuous place to tell people that there is monitoring here, why it needs monitoring, how long the data will be stored, and how to deal with it at that time… Let people know what to do, and provide global procurement services for weak current intelligent products!

    Provide global procurement services for weak current intelligent products! In addition to what is mentioned above, you also need to be extra careful when storing and access control of data. The storage time cannot be endless. As long as the monitoring purpose is achieved, it must be deleted or anonymously processed! People who access monitoring data must also be strictly controlled. They cannot be seen by anyone who wants to see it. They must have permissions, and the operations must be recorded. If something goes wrong, you can find it clearly!

    Some people may ask: What kind of camera is considered a GDPR-compliant surveillance device? In fact, the camera itself may not be much different, the key is to depend on the configuration and usage of the entire system! Even if you use the most advanced camera, if you use it improperly, it will be useless and it is still unruly!

    Some people are also worried: Is a compliant system particularly expensive? Compared with ordinary monitoring systems, which one is more cost-effective? This may be a little more investment in the early stage… But in the long run, a compliant system can help you avoid many legal risks and fines, but in fact, it may save more money! Don’t be too bad for small mistakes!

    In general, although it is a little troublesome to engage in GDPR, there are many details to consider, in order to comply with and respect everyone’s privacy, these efforts are worth spending! Take your time and make sure that GDPR compliant survey systems are done step by step, and you can always get it done!

  • Smart Sensors For Building Automation What Key Role Does Smart Sensors Play In Building Automation Ubiquitously?

    Everyone is definitely familiar with the small, exquisite and powerful smart used in architectural automation, which is smart sensors? They are indispensable key components in our smart buildings now… If you say it wrong, they are key components! These little guys are everywhere, silently in various types – such as commercial office buildings, large shopping malls, residential buildings, and even factory buildings. Smart sensors for building automation play a particularly active and irreplaceable role in the efficiency, energy saving, comfort and safety of the entire building.

    To put it simply, an intelligent sensor is a kind of information that can feel or be tested – whether it is temperature, humidity, or physical quantities such as light, slight changes in chemical composition, biological existence, or states such as motion and non-movement, converting these strange information into electrical signals that we can process according to certain rules, or even? After preliminary calculation and processing, it can be directly transmitted to the subsequent control system to make judgments and reactions, and meet certain reliability requirements and must be added to the accuracy. This requires a modern, highly integrated special… special equipment module that also has a microprocessor. Provide global procurement services for weak current intelligent products! They are the biggest difference compared to traditional old-style sensors that are so ordinary that they are. What's the biggest thing… they have their own brains, can partially process information, and can actively transmit data. They are no longer the kind of dull and wait for others to ask.

    So what does intelligent sensor play in such a large building automation system… what are the main practical roles and key applications? I'll talk to you about some core points:

    The first part is environmental…environmental monitoring and regulation. Like temperature sensors, humidity sensors, air quality – such as PM2.5, carbon dioxide concentration – sensors, and light sensors, they always stare at the indoor climate data and collect them without blinking. These data are given to the building control system, so that the HVAC system (that is, the kind of air conditioner ventilation) can be automatically adjusted according to the actual situation, so that the room temperature is always just right, the humidity is also comfortable, and the air quality can also be quainted; the lighting system can also be opened and closed according to the brightness of the natural light outside or adjust the brightness of the house. In this way, the comfort is not mentioned, and it can save a lot of unnecessary electricity bills!

    Another big guy has to calculate how energy is effective… Effective management and energy conservation and consumption reduction. How much current is used and the voltage is stable and the power sensor is stable! How much gas, how many water, gas, electricity, and water meter are intelligently connected to the network, accurately counting the specifics of each area and each different equipment in the building, which really depends on the energy usage status of the finger. By analyzing these data, the system uncovers the areas that are very wasteful with electricity, gas, water, and then optimizes the switching time and operating power of the equipment, and moves quickly towards the energy-saving goal!

    They are also indispensable for security protection. Thermal imaging probe, detector of smoke, sensors for whether doors and windows are locked normally, and the sound sensing of glass breaking all play an important role. Whenever there is any suspicious situation, such as sudden temperature rises, it may catch fire, or if the window is pried open, the sensor will immediately send an alarm message to the security system.

    There is another special but quite common one left, which is (whether anyone is there). Infrared motion sensing or ultrasonic presence sensors can tell whether there are people in the room, conference room, or in the corridor and aisle, and about how many people are in the room. This information is so useful. It can make the air conditioner and lights work only when someone needs it. Why are you still on without anyone? At the same time, it can also help property managers understand what they are…, understand the real use of building space, and optimize how to arrange the space more reasonably.

    Some friends may be confused and want to know more about the details? I'll try to answer a few questions:

    Q: Smart sensors with different interfaces, like RS485? Or, KNX, and wireless, for example, these are really troublesome when choosing. How to choose?

    Answer: This mainly depends on what kind of overall communication protocol standards and requirements are used in your building automation system, as well as the on-site tooling and wiring environment. If the wire is not so easy to pull, then wireless is definitely the first choice, right? In addition, how much data is in communication, how much data is transmitted once, how far a signal can be transmitted without interrupting data packet loss, whether there are particularly high requirements for data security, etc., these factors are considered comprehensively. Generally speaking, wiring is convenient and not short of money (can be used for dozens of meters), and wired is the most stable; don’t you want to make a big move? Temporary small areas need to be arranged flexibly? In some scenarios with small data volume, wireless solutions are very fast to install, but they are fast and fast. The stability may be discounted in complex environments. We must weigh the pros and cons! It is best to find professional and knowledgeable people, such as system integrators, and help evaluate and choose the most suitable one at once.

    Q: Is it troublesome to install these small smart sensors for a long time to use and maintain them? Do they need a particularly professional technician to do it?

    Answer: Nowadays, smart sensor design is becoming more and more intelligent and user-friendly. If installed, some of them are magnetically sucked, and some have hole-punched brackets that can fix the wall. Most of them should… in most cases, they can fix and wiring without complex professional skills. After installation, most of them support remote configuration parameters, remote software updates and data viewing. Pay attention to whether there are any problems with the power supply in daily life, and whether the surface of the sensor is dirty will affect performance: By the way, we provide global procurement services for weak current intelligent products! If the signal suddenly disappears or the data is inaccurate, don’t panic. First check… Check whether the connection is loose or not. If the signal is not clear, please contact the manufacturer’s technical hotline (see the 400 phone number printed above to try) and ask. Generally, minor problems can be solved. Relatively speaking, it is much easier to worry and trouble than the old-fashioned pure analog output!

    My own opinion is that this kind of intelligent sensor will become more and more powerful in future building automation, and will become more and more…intelligent! They will become smaller, delicate and inconspicuous, with low power consumption that can be as low as one or two years without changing the battery, have a stronger perception of the surrounding more refined environments, and will also become a small link in the waves of the Internet of Things… The waves are surging in the intelligent ocean, making our buildings truly become a space that can perceive self-adjustment of living giant trees, which is generally flexible and green and healthy.

  • Church Streaming Systems Full Analysis: The Basic Concept, Selection And Usage Method Revealed

    Full analysis

    In today's digital age, many churches hope to expand their influence through live broadcasts! But many people are still confused about the (Church Live Broadcast System)… Today, let’s talk about what this system is, how to choose and how to use it. After reading it, you will understand it!

    part 1: Basic concepts lying

    It is a set of equipment and technology combinations specially used for live broadcasts for the church! It is not just a fooling thing with a mobile phone, but it is serious, including cameras, encoders, switchers, Audio devices and other things… Oh, by the way, there are also the most important streaming platform and network environment… It may affect the live broadcast effect if there are fewer ones, so it will be useless, right?

    part 2: Core equipment modules and purchasing skills

    1. Camera : Don’t be stupid and hit 4K directly! In fact, 1080P/60 frames are enough to use Church streaming systems. If you have a lot of budget, then consider 4K… Is it affordable to choose Sony HXR-NX5R for fixed camera positions? The Panasonic AG-UX180 screen is more stable with the rocker arm…

    2. Encoder and switcher: Small churches use USB encoder like Yuangang GC551, and you can use it by plugging in a computer! A larger church needs to complete the ATEM Mini Pro switcher, which can cut 4 signals and also have multiple screen monitoring… The price difference is large, so you have to choose according to the number of people!

    3. Audio equipment : The pastor must use a lapel to clamp the wheat when speaking! Shure BLX14/PGA31 is very good… The choir has to sing a chorus, and he always walks around with his hands on the wheat. What does it look like? part 3: Pit avoidance guide + practical operation steps – Must-read on the Internet : The upload speed during live broadcast is ≥5Mbps! Otherwise, believers will want to withdraw from the live broadcast room… China Unicom/Telecom's fiber optics are the most reliable, don't believe in those miscellaneous broadband and fool them!

    Pushing and streaming settings : choose 720P/code rate for live broadcast, just use 540P/… The code rate is too high and the network cannot withstand it, and the picture is too low and the picture becomes a mosaic!

    Backup plan ! At an important ceremony, you have to prepare a backup camera to connect to another computer… What if the main device suddenly stops? Spend more money to have a family-style bucket-style peace of mind!

    QA link: Frequently asked questions

    q1: Can you save money by using mobile phone live broadcast?

    a1: Play once a while! It is absolutely not possible to use it for a long time! The phone has poor radio and trembling pictures, and believers can’t see it as professional… How much does the church take it seriously?

    q2: Do you have to buy a professional mixer? !

    a2: It is okay to replace the small church with a sound card within 100 people! 18i8 is enough… If there are too many people, go to the Allen & Heath ZED-1 live broadcast dedicated platform!

    Finally, let’s say heartfelt words: Don’t just look at the price when choosing a system! Stability is more important than anything else… If you buy all the equipment, you have to find the parameters that you know the skills. It cannot be used just by plugging it in! Provide global procurement services for weak current intelligent products! If you don’t know how to adjust, don’t mess around with it yourself… If you break it, you have to spend money to repair it. Isn’t that cost-effective?

  • What Is Commissioning Automation Workflows? Why Is It Crucial For Device Debugging?

    Today, let’s talk about this, which is the workflow that can make the device startup and debugging process smoother and does not always rely on people to keep a manual operation. Many friends who are just starting to come into contact with this industry are probably familiar with this concept and feel that it seems quite high-end but don’t know where to start. In fact, it is to integrate the originally messy debugging steps, the data that is lost one by one, and the endless inspection and verification work into a series of programs or steps that can automatically run. This will save a lot of trouble and reduce the trouble caused by the person’s brain being confused or the wrong number is shaking!

    First of all, I have to tell you the basic concept of this and why it is so important. Think about it, in the past, when debugging a slightly more complex device, such as the weak current intelligent system in the building, did several people need to hold orders one by one? After adjusting this parameter, you have to run over to see the number of the instrument. Not to mention it. If there is a missed link or a wrong number, there will be a lot of trouble later! Now that this automated workflow is available, it is like installing a navigation for the entire debugging process, and it is also equipped with autonomous driving. You can walk in order, check right or wrong, and record data by yourself. How much time and energy can you save this? Provide global procurement services for weak current intelligent products!

    So, what key modules should be paid attention to in this? Next, let’s talk about it one by one:

    1. Process sorting and standardization module: This step is like before we clean up the house, we have to figure out which things to put, and we have to write and arrange each small step in the debugging process clearly and in order. We cannot be one today and another tomorrow. For example, we first cut off the power and check the wiring, then power on to test the basic functions, then parameter configuration, linkage testing, and finally performance optimization and archiving. These must be clearly listed, so that it becomes a standard process that anyone can understand after reading it. In this way, automation can have something to be based on!

    2. Data acquisition and automatic input module: When debugging, do not you need to input a lot of data such as device models, IP addresses, and range upper and lower limits of various sensors? In the past, I used to manually type, and I had to type on the keyboard when I stared at the screen. After a long time, it was not only tiring, but also particularly prone to errors. Now this module can store these data in a unified form or database in advance, and then when the process started, it automatically filled in the corresponding place, which was as convenient as you scan the code to pay without manually entering the amount!

    3. Logical judgment and troubleshooting module: Don’t think that automation is running rigidly in sequence. It also needs to have a "brain" to judge the situation. For example, when debugging to a certain link, the system itself detects that the feedback value of a sensor exceeds the normal range. At this time, it must stop Commissioning automation workflows, or automatically trigger a preset troubleshooting process to tell you that it may be because the wiring is loose or the sensor itself is broken, instead of continuing to run down stupidly and finally causing bigger problems to the device. This is particularly important!

    Here are some tips and guides for avoiding pits in practice. They are all practical experiences that you have figured out little by little while working:

    1. Don’t think about automating all processes as soon as you start. You can’t become a fat man in one bite. You have to start with the simple steps that repeat the most frequently and are most prone to errors, such as entering the basic information of the equipment and sending simple on-off test instructions. Once you get these smoothly, then slowly expand to complex steps. Otherwise, it will be too complicated all of a sudden. Not only will the system easily crash, but you will become more and more confused as you make it yourself, and you may give up in the end!

    2. When choosing a tool, be sure to keep your eyes open. Don’t listen to those who sell software and place an order immediately. You have to see if this tool can match the equipment agreement you use on site. For example, if your device uses the agreement, but the tool you choose only supports it, wouldn’t it be useless? The operation interface must also be simple, don’t make it as complicated as flying an airplane, otherwise the masters on the scene will not be able to learn it for a long time, so automation will become a decoration!

    3. You must not save the test process! The process is set up and the module is also set up. You must first run from beginning to end in the simulation environment. Just like when you buy a new clothes, wash water first to see if there is any step stuck, data transmission problems, or logical judgment is wrong. When the simulation environment is fine, you can get a small-scale test on the actual equipment, and finally you can promote and use it on a large scale. Otherwise, if you don’t have a good test, you will go directly. If you drop the chain at a critical moment, the loss will be huge!

    I guess everyone may have some questions after reading what they said above, so let’s add some details in the form of Q&A:

    Q: I am just a small factory and don’t have much equipment. Is it necessary to do this?

    Answer: Why is there no need! Even if there are not many equipment, it can save a lot of trouble to create a simple automation process. Think about it, even if you save an hour of debugging time every day, you can save hundreds of hours in a year. Isn’t it good to spend this time doing other work? Moreover, there are few equipment and the process is relatively simple, so it is easier to get started. Maybe because of this small change, your factory’s debugging efficiency will be much higher than that of others!

    Q: Will this automation be particularly expensive? It costs a lot of money to buy software and hardware?

    Answer: This is not necessarily true! There are many open source software or tools on the market that do not require too high hardware configuration. You can choose a cheaper one based on your actual situation. You may not buy the top one as soon as you start. When you use it, you feel that it is really inseparable. It is not too late to upgrade slowly. Many times, you can do big things even if you spend a small amount of money!

    I personally think that this thing, whether for beginners or veterans, is a good helper who can make work easier and more reliable. Learn, use and benefit from it early. Don’t be reluctant to spend time and energy thinking. The times are moving forward, so we have to make progress in our work methods, right? Even if you start with the simplest small part and accumulate experience slowly, you can always make the entire debugging process smooth and prosperous!

  • Amazon Alexa For Property Managers Amazon Alexa For Property Managers Practical Guide To Improve Property Management Efficiency And Tenant Experience

    Alexa for Practical Guide: Smart solutions to improve property management efficiency and tenant experience. In contemporary property management, many people feel that daily affairs are complicated, communication costs are high, and tenants are slow to respond to demands. As an intelligent voice assistant, Alexa is gradually becoming an effective tool to solve these pain points.

    Regarding Alexa, simply put it, it is an intelligent voice interactive artificial intelligence service developed by Amazon. It can perform various operations through voice commands, realizing various functions such as device control, information query, task reminder, etc. In the property management scenario, with the help of Alexa's voice interaction capabilities and rich skills, the daily operation and maintenance of the property can be made more convenient and efficient. Provide global procurement services for weak current intelligent products!

    1. Equipment interconnection and intelligent control : Many properties have lighting, air conditioning, access control and other equipment. Through Alexa, these smart devices can be controlled voice, such as "Alexa, turn off the corridor lights of Building 3", and do not require manual operation of the switch, which can save labor costs and time.

    2. Tenant service automation response : Tenants often ask questions like "When will the elevator be repaired?" "How to pay the property fee?" After setting custom skills in Alexa, tenants can get automatic responses by directly asking voice. Solving tenant questions does not require property staff to keep staring at the phone or WeChat group!

    3. Property announcements and information push : When you have something to notify tenants, you do not need to post announcements or send mass text messages one by one. You can broadcast messages to all connected devices through Alexa, such as "The water will be out of stock at 9 am tomorrow, please prepare in advance", and the community notification can be completed in one or two minutes.

    4. Daily inspection and task management : When property inspection personnel find problems, they can directly say to Alexa "record the abnormal noise of the elevator in Building 3". The system will automatically generate a patrol report and send it to the relevant person in charge to avoid omissions or delays in handling the inspection records.

    Q: Will Alexa involve tenant privacy issues in property management?

    A: Generally speaking, as long as the permissions and data storage methods are correctly set and only the necessary information related to property management is collected, there will be no major problems. Don’t worry too much about security.

    Q: Do you need to upgrade many hardware equipment to the property to use Alexa?

    A: Not needed! Now many new smart devices support Alexa themselves, and old devices can also be accessed through smart gateways, without the need for large-scale replacement of equipment, and the cost is controllable.

    5. Quick response to emergency situations : In case of fire, water leakage and other emergency situations, property staff can shout "Alexa, start the emergency plan". The system will automatically trigger an alarm, contact relevant personnel, open emergency channel lighting and other operations. Amazon Alexa for Property Managers, many times faster than manual operation!

    6. Tenant satisfaction survey and feedback summary : Let Alexa regularly push simple satisfaction surveys to tenants, such as "Are you satisfied with this week's cleaning service?" After the tenant's voice answer, the system will automatically summarize and analyze the data, so that the property can quickly understand the changes in tenant needs.

    7. Energy consumption monitoring and optimization : Alexa connects smart electricity meter, water meter and other equipment to monitor the energy usage of each building in real time. When abnormal consumption is found, Alexa will actively remind property personnel to check to help the property save energy costs.

    Personally, Alexa has a very broad application prospect in the field of property management. It can truly help the property improve work efficiency, reduce operating costs, and improve tenant living experience, which is worth trying and promoting.

  • Multi-vendor Interoperability How Difficult Is It To Interconnect Multi-vendor Systems? First Understand The Basic Concepts Such As Agreement Standards

    Multi-, that is, the interconnection of multi-vendor systems is really not something that can be explained in a simple sentence. Many people will encounter various troubles when actually operating, and don’t know where to start! Simply put, it is that equipment or systems of different brands and models can exchange information smoothly and work together like a group of partners who have a tacit understanding, without making any troubles or making any mistakes. This sounds easy, but there are many tricks to do!

    First of all, you have to figure out a few basic concepts, otherwise no matter how much you say, it will be useless. The first is the protocol standard, just like all devices have to speak the same "language" to understand the other party's words. Common ones include the basic language of network communication, such as TCP/IP, and these "dialects" that are particularly commonly used in industrial control and building automation; the second is the interface type, which is like the "position" of handshake between devices, including USB and HDMI on hardware, and API interfaces on software. Different interfaces correspond to different connection methods; the third is the data format, and the exchanged data must have a unified "package", such as JSON and XML. Otherwise, one party will send a bunch of "garbled codes" and the other party will not be able to interpret it at all!

    To implement Multi-Multi-vendor interoperability, there are several key steps and key points that must be remembered firmly, and no step can be wrong!

    1. The preliminary planning must be comprehensive and detailed : at the beginning of the project, you must list all possible equipment and systems, and no one can be missed! Check out the protocols and interfaces they support one by one, and ask the manufacturer if there is a compatibility test report. It is best to get a detailed technical manual, otherwise there will be a big trouble! For example, if you use the A-brand access control system and want to use the B-brand surveillance and video recording system to connect, you have to confirm in advance whether the access control system can send the door opening signal to the monitoring system through standard protocols, and whether the monitoring system can accurately receive and trigger video recording. These details must be thought of! Provide global procurement services for weak current intelligent products!

    2. Middleware or gateway is an important bridge : If different devices speak different "languages" they say, you have to hire a "translator", which is middleware or gateway! They can convert one protocol into another, allowing devices that originally "language-not-transitive" to communicate smoothly, and can also uniformly manage data sent by different devices, saving a lot of trouble!

    3. Test acceptance must be strictly checked : After the system is built, don’t rush to put it into use, and must conduct comprehensive testing! To test one-way communication and two-way communication, we also need to test whether there will be lag, delay, or even crash when there are many devices and large data volumes! You can first use a few devices to conduct a small environmental simulation test. If there is no problem, the scale will be expanded. Finally, you need to do a long-term stability test to ensure that it runs as reliable as an old ox!

    Don’t panic when encountering problems. Here are some answers to common questions and tips to help you avoid many detours!

    Q: Which one is better to choose when choosing an agreement?

    Answer: Of course, we will give priority to internationally universal and open standard agreements! For example, the above mentioned OPC UA, which uses many people and has sufficient support from manufacturers. The compatibility will be much better, and the system will be upgraded and expanded in the future! If those private agreements that manufacturers have made themselves can be used, they will not be used. Unless there is no way, they will have to change and add equipment in the future, and there will be many troubles!

    Q: Is it important to synchronize equipment time from different manufacturers?

    Answer: It’s so important! It is simply a "disaster" to be out of sync! To put it simply, if you want to check the records of device A and device B when an event occurs, if the time does not match and the order of events cannot be distinguished at all, the data analysis will be a mess! Therefore, you must use an NTP server to give all devices a unified calibration time, and no one can be left behind!

    Finally, I have a little personal opinion, realizing Multi-Although the process may encounter many difficulties and require patience and care, as long as the preliminary planning is in place, the right tools are selected, and strict tests are strictly performed, most of the problems can be solved! Moreover, once it is successfully implemented, the flexibility and scalability of the system will be greatly improved, and it can also avoid being "binded" by a single manufacturer. In the long run, there are many benefits, and it is definitely worth investing time and energy to do it!

  • Exam Hall Surveillance Solutions Exam Hall Surveillance Solutions Exam Hall Surveillance And Management Are Concerned About The Important Examination Occasions, And The Examination Room Monitoring Solution Is Very Important.

    Nowadays, in various important examination occasions, such as the high school entrance examination, the college entrance examination or some professional qualification examinations, the monitoring and management of the examination room can be said to be a big concern! Many people are worried about whether there will be cheating during the exam, which will affect the fairness of the exam. This is really a headache! So, Exam Hall, that is, the examination room monitoring solution, is particularly important. It can use various technical means to ensure that the examination can be conducted in a fair and just environment.

    First of all, we have to figure out what this Exam Hall is. Simply put, it is a complete set of comprehensive systems for real-time observation, recording and management of the internal situation in the examination room. It often uses various technologies such as camera shooting, recording, and signal shielding. The purpose is to do its best to prevent candidates from cheating and ensure that the examination can be carried out normally and fairly without interference from various adverse factors.

    So what key content modules does this monitoring system mainly contain? Don't rush Exam Hall Surveillance Solutions, I'll disassemble it for you:

    1. Video surveillance part: This is the most core part of the entire system! Generally, high-definition webcams are installed in every corner of the examination room, such as the front, back, left and right of the classroom, and some can rotate 360 degrees, for fear of missing any place! These cameras must ensure that they can clearly capture every move of each candidate. Even the small movements of lowering their heads and secretly watching the papers of the people next to them can be taken clearly, making it easier for the invigilator to view the real-time situation of the examination room at any time in the monitoring room.

    2. Audio acquisition module: It is not enough to have images, and the audio aspect cannot be left behind! Some highly sensitive pickups will be installed in the examination room to collect the sounds of candidates' speech, as well as the sounds of turning the papers and writing with a pen… If candidates whisper to each other, or make any abnormal movements, the system can immediately capture them and promptly remind the invigilator to deal with them.

    3. Signal shielding device: Nowadays, technology is so advanced that many cheating uses electronic devices, such as sending answers with mobile phones and receiving signals with micro-headphones. Therefore, the signal shielding module is essential! It can block the mobile phone signals within the examination room, as well as the signals sent by walkie-talkies and wireless routers, making candidates who want to cheat on electronic devices unable to succeed. This is really a useful way!

    4. Storage and review functions: The videos captured and recorded audio data must be saved well, so the system will be equipped with a large-capacity hard disk recorder (NVR) or cloud storage server. These data generally have to be kept for a long time, for example, for several months. If someone reports that he suspects cheating after the exam, he can be retrieved and viewed the video at that time to verify whether this is true.

    5. Intelligent analysis system: Nowadays, many advanced examination room monitoring systems have also added intelligent analysis technology, such as face recognition! You can compare with the photos of the candidates when registering to see if they are here to prevent someone from taking the exam; there is also a behavioral analysis function. If the system finds that the candidates have multiple times of looking around and passing things, they will automatically issue an alarm to remind the invigilator to pay attention to the candidate.

    Here, I will answer a few questions that you may be concerned about:

    Question (1): Will installing so many cameras and sound pickup equipment in the examination room violate the candidate's personal privacy?

    Answer (1): Actually, you don’t have to worry too much because the examination room itself is a very special public place where candidates take the exam, and their behavior needs to be supervised to ensure fairness of the exam. Moreover, the audio and video data collected are strictly confidential. They can only be retrieved and checked when handling examination cheating or conducting compliance inspections. They will never be leaked out to infringe upon the privacy of candidates.

    Question (2): Will this signal shielding device also interfere with the normal communication of residents around the examination room?

    Answer (2): Generally speaking, it won’t be possible! The shielding range of a regular signal shielding device can be adjusted. Technical personnel will accurately control it within the small range of the examination room and will not exceed the walls of the examination room too much, so the impact on the mobile phone signals of the peripheral residents is very small and almost negligible.

    In the market, there are also some small brands of examination room monitoring equipment. The prices may sound quite attractive and cheaper, but I advise everyone not to look at these bargains! The stability and functionality of those devices are simply incomparable to those of big brands. It is likely that something will happen in a while, which will affect the monitoring effect! Therefore, everyone still has to choose products produced by regular manufacturers, such as brand equipment that has passed ISO quality certification. Although the price may be higher, the quality is high! stability! After-sales service is guaranteed! It is necessary to remind you that if the school has the need to purchase such weak current intelligent products, especially if it is necessary to purchase globally, it will provide global procurement services for weak current intelligent products! Their family is quite professional and reliable in this regard, so you can learn about it.

    Personally, I think Exam Hall is a very important technical guarantee for maintaining the fairness of the exam. When choosing and installing these systems, schools and examination organization units must comprehensively consider their actual needs and budgets, and choose cost-effective and mature solutions, so that they can truly play their role and make every exam go on fairly and justly.

  • Space Station-Ready AV Systems Space Station – What Is Ready AV Systems? What Is The Difference With Ordinary AV Systems?

    About Space – Ready AV, a space station-specific audio and video system, you may have heard of it, but what it is, I guess many people are just like me! In fact, simply put, it is a combination of audio and video equipment that can work stably in extreme environments like the space station, responsible for communication between astronauts, video conferences on the ground and space, and surveillance video of various cabin situations. It is of great use! Provide global procurement services for weak current intelligent products!

    Compared with the ordinary AV system we use on earth, the difference is huge, it is simply from heaven to earth! The first thing is that it must be particularly capable of tossing and struggling. Think about it, the space station will lose weight for a while, and there may be a slight vibration at a time. The temperature changes may not be accurate, and the radiation is also strong. If you throw ordinary equipment in, let alone work, it is a problem whether you can turn on the computer!

    So when choosing and using this Space – Ready AV, what are the things that need special attention? I said to everyone:

    1. Extreme environmental adaptability : This is definitely the top priority! You must be able to withstand the violent fluctuations from tens of degrees below zero to tens of degrees above zero, and to withstand the radiation of cosmic rays, as well as the special requirements of the microgravity environment for internal components of the equipment, otherwise you will be on strike in minutes!

    2. Lightweight and miniaturized design : The space in the space station is expensive, just like gold. Of course, the smaller the equipment, the better the light, so when choosing, you must see the size and weight parameters clearly. Don’t buy it too big, it’s troublesome!

    3. Low-power performance : The power supply on the space station is carefully calculated, and every kilowatt-hour of electricity must be used on the blade, so the power consumption of the AV system must be low. It cannot be as powerful as the large color TV in our home, otherwise the energy supply will not be able to withstand it!

    4. High reliability and redundant backup : Failure in outer space is not as easy as on earth, and it can’t even be called by a repairman! Therefore, the system must be particularly reliable, and it is best to have a backup mechanism. If one component is broken, the other can be immediately put on the board to ensure that it does not delay the serious matter!

    Some people may ask: "What is the difference between this kind of high-end system and the home theater system we usually use?" Let's put it this way, home theater focuses on the enjoyment of sound quality and picture quality, and pursues the immersive experience; while Space – Ready AV, the first thing to consider is stability, everything has to be reliable in space to complete mission services. As for whether the sound quality is HiFi, whether the picture quality is 4K, Space Station-Ready AV Systems, that is secondary, as long as it is enough!

    Some people may also worry: "Is this system particularly difficult to operate? Astronauts have to spend a long time learning?" In fact, there is no need to worry. When designing, it will definitely consider the operation convenience of astronauts in a tight working state. The operating interface will generally be very concise and clear, and the key functions are easy to use, so they will not engage in that particularly complex operating process. Otherwise, wouldn't it cause trouble for astronauts!

    Finally, I personally think that Space – Ready AV, a high-tech product, represents one of the highest standards of technology application in extreme environments. Although it is far away from the lives of ordinary people, many of the technical ideas and design concepts used in it may slowly penetrate into our daily electronic products in the future, making our lives better!

  • Sistemas De Seguridad Para Edificios What Is The Building Security System? What's The Use? How To Choose To Be Reliable? Do You Know?

    Regarding building safety systems, which are what everyone often calls de para, many people are like me, just ordinary owners who need these things but are a little confused about the tricks, or community property management personnel, will especially want to know what this thing is, what is its use, and how to choose it for reliable, right? After all, it is not easy to build a building. If you move in or work inside, safety is definitely the first priority. No one wants to be worried all day long, don’t you think so!

    First of all, we have to understand that this building safety system is not a single thing. It is actually a large collection of many small systems combined together, just like a football team, with goalkeepers, defenders, midfielders, and forwards. Each position has its own work, but the ultimate goal is to win, that is, to ensure the safety of the building! It mainly uses various technical means, related equipment and equipment, and scientific and reasonable management measures to prevent bad things from happening, such as a thief coming in to steal things, someone deliberately sabotaging it, if a fire occurs, you can know it in time, and even some sudden unexpected situations can play a big role. Provide global procurement services for weak current intelligent products!

    So what specific modules does this de para contain? I'll count it for you, you have to listen carefully, don't get distracted:

    1. Video surveillance system (CCTV) : This should be considered the most common and easiest to understand. It is just that cameras are installed everywhere, there are ordinary ones, and the gimbal cameras that can turn around, infrared cameras that can also be seen clearly at night, etc. These cameras transmit the captured images to a special video recorder or hard drive and store them. People in the security room can see them in real time. If something happens, they can still record and watch them back. Who did it and when it did it, it is clear!

    2. Access control system : This is mainly about door management. To put it bluntly, who can enter and who can’t enter, when can’t enter and when can’t enter! Common ones include swiping cards, and you can open the door with a card; some people press fingerprints, just put their fingers on and "drip" them; now there are more advanced ones, face-scanners! You stood there, and you could find it out with a click and put it in. Isn’t it amazing? The system is also part of the access control, which is to register outside visitors.

    3. Invasion of the alarm system : This is like installing an "electronic dog" on a building, or it is more like an "alarm"! If a bad person wants to break into the window, or dig a hole in the wall or something, the system will sense it, and then it will sound "Woooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooo It is generally equipped with door and (door and window magnet), (such as infrared, microwave action detectors), vibration detectors and other things.

    How can I choose the safety of the building that suits me? There is so much knowledge here—-:

    First, you have to think about what your building is for? Is it a residential building where ordinary people live, a company office building, or a warehouse, shopping mall, or even a hospital, or a particularly important place like a warehouse,shop, or even a hospital, or a school that houses a lot of valuable things? Different uses and safety requirements are huge different! The warehouse may be particularly concerned about theft prevention, and the hospital may pay more attention to evacuation in emergencies.

    Then, you must not ignore the point of your budget – how much money is going to be spent on it? With a lot of money, you can naturally choose more advanced and more comprehensive equipment; if the money is not that good, you have to do a good job of planning and choose the most important one to install first.

    Geographic location is also very important! For example, is your building in a lively and safe place in the city center, or is it a little remote in the suburbs that may be more likely to attract thieves? This must also be considered.

    If I encounter a problem, where should I buy these things? Oh, this question is a good question! There are indeed many companies doing this on the market, both big and small. You can find a few more companies to ask about the situation— and ask them to give you plans and quotes. You can compare the stores without losing money! Some companies specialize in design and installation, while others sell equipment at the same time. Provide global procurement services for weak current intelligent products!

    Finally, there are several FAQ questions that many people may ask. I will try to answer them, but I don’t know if it is right. For reference only:

    Q: Will this set be particularly troublesome to install? Will my good wall be damaged?

    Answer: Well…it depends on the situation! If a new house is being built, it is definitely the best to install it simultaneously. It is more beautiful and saves trouble if you can wire and bury the pipes in advance. If the old house is renovated, it may be a little troublesome, but now there are also wireless devices that can be used, so you don’t have to open too many grooves or holes on the wall, which can save a lot of trouble!

    Q: Is it very expensive and laborious to maintain so many systems?

    Answer: Any equipment needs to be maintained after being used for a long time, right? But it's not as scary as you think! Choose a better quality product, and let professional masters come regularly to check whether the equipment is running normally, whether the circuit is aging, whether the camera is not clean, etc. If you spend a little money and time, you can ensure that the system works well for a long time and be used at critical moments! It’s better than regretting something happens! Anyway, I think so, safety cannot be careless at any time! This is really not a joke, it affects the safety of many people's lives and property!