See the coolest biometrics in gait analysis
The diversity of biometrics determines the accuracy of this biometric identification. Fingerprints, faces, and irises are all well-known recognition methods. However, a "Mission Impossible 5" released this year has made us realize A newer biometric technology - gait analysis. What exactly is gait analysis? Where is the magic?
What is gait? As the name implies, it refers to the posture of human walking, describing the periodic phenomenon of the walking characteristics of people; while the gait analysis is to record, observe, analyze the body movement mode, establish a gait model, extract stable parameter characteristics, and go through the computer. The process of identification. A complete gait cycle includes two phases, the “support phase†and the “swing phaseâ€.
Early medical research has shown that the human gait has 24 different components, including bone length, muscle strength, joint flexibility, etc., combining these gait characteristics, "gait" has individual characteristics. When used for identification, simply input the captured image into the system, the computer will match through the gait recognition algorithm, find the matching object from the database, and display the final result.
In fact, as explained in the "Mission Impossible" film, gait is difficult to cover and disguise, and can be accurately identified in both long-distance and low-resolution situations. Below, we will talk about the "gait analysis system" that makes Bangui completely desperate for the three principles of diversity, stability and collectability of biometrics.
For gait analysis, there is an assumption that each person has a unique face and each person has a different gait from others. Of course, the above assumptions are recognized by medical research, which means that "everyone's gait is unique." From an anatomical point of view, the physical basis of gait uniqueness is the difference in physiological structure of each person. Different leg bone length, muscle strength, center of gravity height and motor nerve sensitivity jointly determine the uniqueness of gait.
Like other biometric technologies such as iris, fingerprint, and sound, gait analysis also has stability problems, that is, a person's gait can be affected by factors such as injury, weight gain or loss, and even dress comfort. And change. Therefore, there are certain challenges in its stability.
For a very simple example, for example, if the shoes worn on the feet are not fit or comfortable enough, the walking posture of the wearer will change; or when the walking or exercising, the ankle will be accidentally sprained, then As you limped, the gait analysis system will think that you are another person or cause verification failure. In fact, each type of biometric identification may not be verified due to some accidents. Therefore, it is necessary to establish a comprehensive and comprehensive verification system, which is called the alternative.
As we all know, each biometric technology will not be able to collect feature information completely and accurately due to some "accidents". Gait analysis also has similar problems in collecting data. For example, the difference between trousers flat shoes and long skirt high heels, or some religious countries, robes are their traditional clothing, the legs are completely obscured, consistent with gait analysis and so on.
Seeing this, someone might say that it needs eggs? In fact, the advantage of gait analysis lies in long-distance recognition, up to hundreds of meters. In addition, gait analysis can easily distinguish different patterns of people, such as walking, running, weight-bearing and so on. In the future, a variety of biometric technologies will be combined and automatically switched according to actual application scenarios, user conditions, and security levels to form a multi-modal recognition technology that will be more competitive than any single biometric.
With the continuous development of technology, wireless network has become an indispensable part of our daily life. The router WiFi module is an important part of the wireless network. In this article, we will introduce the router WiFi module in detail.
First, what is the router WiFi module?
A Wireless Router module WiFi module is a device used to convert a wired network to a wireless network. It converts data from wired networks into wireless signals, allowing multiple devices to connect to the network wirelessly. A router WiFi module typically includes a wired network interface, one or more wireless network interfaces, a processor, and some memory.
Second, the working principle of the router WiFi module ARM Core Module
The working principle of the router's WiFi module can be summarized in the following steps:
1. Data collection: The router WiFi module collects data from the Internet through the wired network interface.
2. Data processing: The WiFi module of the router uses the processor to process the collected data, including data analysis, filtering and conversion.
3. Send data: The router WiFi module converts the processed data into wireless signals and sends them to the devices connected to the network through the wireless network interface.
4. Receive data: The router's WiFi module can also receive data from devices connected to the network and forward it to the wired network interface.
Iii. Functions of router WiFi module wireless router core module
1. Network connection: The router WiFi module can convert the wired network into a wireless network, enabling multiple devices to connect to the network wirelessly.
2. Network management: The router WiFi module can manage network connection, including device connection, disconnection and configuration.
3. Security protection: The router WiFi module can provide security protection functions, including network encryption, access control and firewall.
4. Signal enhancement: The router WiFi module can enhance the coverage range and signal strength of wireless signals through signal enhancement technology.
5. Network optimization: Router WiFi module can improve network performance and stability through network optimization technology.
Fourth, the application of router WiFi module
The router WiFi module is widely used in various occasions such as homes, enterprises and public places, providing users with high-speed, stable and secure wireless network services. The following are some application scenarios of the router's WiFi module:
1. Home network: The router WiFi module can provide wireless network services for home users, so that multiple devices can be connected to the network wirelessly, such as mobile phones, tablets, laptops, etc.
2. Enterprise network: Router WiFi module can provide wireless network services for enterprise users, so that employees can connect to the network anywhere in the office, improving work efficiency and convenience.
3. Public places: Router WiFi module can provide wireless network services in public places, such as hotels, cafes, airports, railway stations, shopping malls, etc.
Fifth, the development trend of router WiFi module
With the popularity of wireless networks and the continuous expansion of application scenarios, the development of router WiFi module also presents the following trends:
1. High-speed: With the development of 5G technology, the speed of router WiFi module will be faster and more stable.
2. Intelligent: The router WiFi module will be more intelligent, which can automatically adjust the signal strength and coverage, improve the network performance and stability.
3. Security: The router WiFi module will pay more attention to network security and provide more complete security protection functions to ensure users' network security.
4. Multi-functional: Router WiFi module will have more functions, such as Internet of Things connection, voice control, smart home, etc.
Router WiFi module is one of the important components of wireless network, it can convert wired network into wireless network, and provide users with high-speed, stable and secure wireless network services. With the popularity of wireless network and the continuous expansion of application scenarios, the development of router WiFi module also shows the trend of high-speed, intelligent, secure and multi-functional.
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Shenzhen MovingComm Technology Co., Ltd. , https://www.movingcommtech.com