What are the problems and challenges faced by traditional security in the innovative application of Human body sensor Module in Millimeter Wave Radar Security? With the progress of science and technology, people have a more and more comprehensive understanding of the existing security system, and more and more intrusion events have become an urgent problem to be solved in the world. The existing security system has obvious problems and is easily affected by the weather (such as rain, snow, haze), night and other environments, so it cannot grasp the specific situation immediately, resulting in unnecessary waste of resources, high false alarm rate and high false alarm rate.

At present the main solution - video surveillance

Advantages: Video surveillance is an important part of security system. Video surveillance is widely used in many occasions because of its intuitive, accurate, timely and rich information content.

Disadvantages: with the deepening of application, false alarm, light and shadow change, rain and snow, haze, dust, background change, shielding, will affect the detection effect, non-active detection.

Current solution - adding millimeter wave radar security human body sensor module radar detection

Advantages: Millimeter wave radar detects targets by transmitting and receiving high-frequency electromagnetic waves. The back-end signal processing module uses the echo signal to calculate the target information such as the presence, velocity, direction, distance and Angle of the moving object. The human body sensor module of millimeter wave radar security has strong ability to penetrate fog, smoke and dust, and has the characteristics of all-weather (except heavy rain days).

Disadvantages: Because millimeter wave radar usually refers to 30~3000GHz wavelength of 1~10mm) Yes. Millimeter waves are intermediate in wavelength between millimeter waves and light waves. If the target is clear and intuitive, you can't confirm the finer features of the target.

A new security technology was born -- millimeter wave radar security human body sensor module + visual fusion; Radar vision fusion solutions drive innovation, radar vision for the first time application: millimeter wave radar and vision integration system, make full use of the advantages of each sensor, play to the advantages of each; Integration of artificial intelligence technology: make full use of the range given by radar detection, target column coordinates, range-based moving targets.

With the development trend of digital, networked and intelligent information society, digital video monitoring gradually replaces analog monitoring and is widely used in all walks of life. The video monitoring system of millimeter wave radar security human body sensor module realizes the integration linkage between video monitoring and conference, and can manage remote equipment flexibly and effectively. Through the application of video, playback, linkage alarm, monitoring strategy formulation, emergency command and other applications of remote monitoring objects, the dual functions of monitoring and communication are realized, and the requirements of remote monitoring and emergency command in the fields of transportation, oilfield, banking and telecommunications are fully met. The false alarm rate of millimeter wave radar security human sensing module is low and not affected by light and shadow changes, rain, snow and haze, sand, background changes and occlusion. Active detection and prevention with low false alarm rate and intelligent discrimination of intrusion target types.

The radar ball machine linkage system connects the radar with the ball machine, feeds back to the intelligent integrated warning system according to the coordinate information provided by the radar in real time, and links the target spatial/geographical location data obtained by the radar with the rotation Angle of the remote ball machine and the focal length of the lens, so as to realize the real-time examination of spatial and geographical location scene images.

System Features:

1, all-weather, all-weather protection: adapt to rain and snow, haze, dust, smoke and other bad weather, meet 7 days, meet 7 days x24h real-time protection;

2, active, three-dimensional: radar active warning, linkage video alarm, real-time target locking, recording alarm information, access control center.

3, intelligent, reliable, low false alarm: the use of intelligent algorithm, accurate detection, effective filtering shaking trees, birds, reduce false alarm.

4, easy to use, open, compatible: the system open structure, flexible expansion access to various security platforms.

Millimeter wave radar security human body induction module system composition:

1. Intelligence: Using intelligent algorithms, it can actively learn, independently distinguish the target and adapt to the environment, and the system can access various customized platforms

2, three-dimensional: adopt video, radar and other technology integration, to build a three-dimensional protection system, a variety of moving targets within 100 meters

3. Active: actively transmit electromagnetic beam 8 times per second, receive target reflected echo for detection, and obtain target direction, distance and other information. At the same time, the visual real-time tracking target observation can be used to determine the final suspicious target active alarm

4, multi-target: support multiple targets detection and tracking ability, radar support ≥ synchronous output of 10 targets, the shortest time to give the most accurate detection results

5: System software: simple operation, defense area setting, police area real-time view, record playback function

6: Openness: the open structure can be flexibly extended to multi-level networking mode, providing friendly alarm query statistics, alarm display, alarm content, solutions and other functions

Millimeter wave radar security human body sensor module Application scenario:

Reservoir application: Real-time detection of people entering the reservoir, fishermen, swimmers, etc

Protection of critical facilities: nuclear power, electric power, energy, real-time detection, to prevent personnel from invading key areas and targets

Airport core area protection: The airport runway and other key areas can be protected

Key infrastructure: oil transportation infrastructure, core base stations, etc.

Innovations on millimeter wave radar safety induction module in the application of wireless parking space detector, is hot topic in recent years, the Internet of things + big data, the tech giants have begun to invest a lot of research and development work, whether the Internet of things or big data, is inseparable from the data collection, so the sensor technology a lot has changed in recent years, the main trend is the application of sensing technology. With the intelligent transportation project as the entrance, many manufacturers began to develop parking detection equipment.

Try a better method based on millimeter wave radar security sensor module. Millimeter wave radar is an electronic device that senses objects by transmitting and receiving microwaves. Millimeter waves are intermediate in wavelength between millimeter waves and light waves. Compared with centimeter wave sensor, millimeter wave sensor has the characteristics of small size, light weight and high spatial resolution. Compared with infrared, laser, TV and other optical sensors, the MMwave radar security induction module has a strong ability to penetrate smoke, fog and dust, and has the characteristics of all-weather (except rainy days). It also has better anti-jamming and stealth resistance than other sensors.

The radar features of parking spot detection are as follows:

1. The wireless wave can be effectively used to measure the distance and speed of the target.

2. In the same period, the industry has low power consumption (025).5W), small volume (14*14), high performance, high cost performance, integrated external interface, becoming a leader in 24GHz radar sensors, and setting a new benchmark in the field of obstacle avoidance and ranging.

3. The default interface rate of the UART for board-level communication is 11520,00bit /s and the target refresh rate is 50Hz. The universal external interface can be quickly connected to the host computer or other interfaces for MCU integration, saving the user's configuration and use time.

Millimeter Wave radar hardware specifications:

Operating voltage: 4.5-5.5V

Average current: 62uA

Adaptive temperature: -40℃ ~ +85℃

Serial port Baud rate: 1152000bps

Update rate: 50Hz

Monitoring delay: 20 ms

Detection height: 0.4~20 m (adjustable)

Millimeter wave radar sensor is a new direction for the application of parking detector in the future. From the perspective of the principle of radar application, millimeter wave radar application should have better effect and improve accuracy, because the use of 24GHz high-frequency application, strong anti-interference ability, 50Hz refresh rate, relatively high, fast response time. Of course, compared with conventional geomagnetic detectors, the cost may be slightly higher. Currently, some high-end users have tried to test the application. I believe in the near future, it may be a new market.

Magnetic sensors are widely used in modern industry and electronic products, through the induction of magnetic field strength to measure the distance, position, direction and other physical parameters. In the existing technology, there are many different types of sensors used to measure magnetic fields, but when encountering iron, the Angle of the electronic compass is greatly shifted and the reaction speed is slowed down, and it is hoped that there is an improved method.

General hardware specifications of wireless geomagnetic:

Operating voltage: 2.2 ~ 3.6VDC;

Average current: 11uA

Accuracy: 98% (sparse parking space), 95% (side-by-side dense parking space);

Adaptation temperature: -30℃ ~ +85℃;

Serial port baud rate: 96000bps;

Detection delay: can be shortened to 6~9 seconds, mainly related to power consumption, can be set according to the actual situation tradeoff;

IO tolerance voltage: -0.3V to VCC+0.3V (including UATR serial port pin, beyond this range will damage the module).