Regarding this Brain-, that is, brain-computer interface, many people may not know much about what it is. In fact, simply put it, it is a technical method that can connect the brain to external devices. By recording some electrical signals of the brain, can it realize the transmission and interaction of information between people and computers? Why is there a brain-computer interface technology? The main purpose is to help those who have physical disabilities, especially sports disorders. People with disabilities want to communicate more easily with their surroundings.
Now take apart this module and talk about some of its key contents.
1. Signal acquisition module : This requires an electrode array to be placed on the scalp to collect electrical signals generated by brain neuron cell activities; the EEG signals can be divided into different frequency bands, such as the α wave and β wave that we often hear about. They are often related to different activities of the head. For example, α waves appear more when people relax and wake up. This collection accuracy is crucial, Hum?
2. Signal preprocessing template block : What does the collected electrical signals often contain a lot? Noise and interference components are further processed to filter these signals. You also need to extract this signal feature, such as amplitude, frequency or other statistical features, such as Brain-computer interfaces, and then make the signal reliable and stable, and become more accurate and stable, so that you can use this next step. You need to understand it and understand it.
3. Feature extraction and coding module: how to say it. Based on the preprocessed signals above, we can use some technical algorithms to identify the brain's intentions. Let's give an example. By establishing a data model, we can distinguish the meaning of different brain instructions. For example, imagine that the electrical signal generated when moving the arm to the left and moving the arm to the right is different.
4. Device interface and software control module: convert the brain intention just now identified and recognized into computer instructions and then pass it to external devices through these specific interfaces to use specially designed software to enable users to customize operations. For example, this software can be used to set the signal sensitivity. There are other parameters with several application scopes.
Now, I will add some details to you through some questions and answers. It is very necessary to know
Q : In what scope can brain-computer interfaces be applied?
Answer: There are many in the medical and health field, for example, to help recover some stroke hemiplegia patients and spinal cord injury patients, let them control their body functions to a certain extent, and reconstruct their functions through neural circuits; then the game entertainment scene can rely on the user's brain to control the scene objects, the roles and the interactions, etc., such as the movement of objects and roles in the game screen according to the intention, etc.; for education and learning, the students' concentration emotional state, feedback adjustment, and teaching methods can improve the effect. For example, teachers can adjust teaching skills and improve concentration based on brain computer feedback from students to adjust their teaching skills and improve concentration.
Q : What level of accuracy should it be considered high?
Answer: At present, ordinary practical scenarios can often reach 80% or higher. Some people can even reach nearly 100% accuracy when they are highly optimized for training in specific environments. However, this often occurs in some controlled research scenarios. In complex and changeable ordinary environments, there is a general technology that is generally more than 80% high, very good, very good, and high-level.
Q : Can security and privacy be reliable?
Answer: Don't worry, after technological development and research, standards have been formed in terms of safety and specifications. Processes such as electrodes and signal collection and equipment settings and installation are all carried out in the security framework for privacy protection regarding user privacy and some information and data related to their brains. Now it is the top priority to properly encrypt and handle it properly.
The technology potential of brain-computer interface is really great. It can open up some usage and usage scenarios that we could never imagine before, so that people can integrate with technology more deeply. In the future, it may be used on a large scale in more complex and complex fields, which will further make our lives more unexpected and more convenient than before. In the future, it may be possible to communicate directly with your brain without opening your mouth to speak. Imagine it is incredible. I look forward to the development. Provide global procurement services for weak current intelligent products! Maybe at that time, weak current intelligence complemented it hahaha who knows that there are really endless possibilities
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