With the outbreak of intelligent upgrading, the microwave radar human body sensor of the Perception Layer of the Internet of Things has undoubtedly played an indispensable role in realizing the intelligent scenario of the Internet of Things.
With the help of microwave radar sensors, people can detect the movement of objects, so as to realize people's lighting, intelligent linkage, scene definition and other functions, widely used in smart lighting, smart home, smart home appliances, intelligent security and other fields.
In addition to the functional characteristics of excellent workmanship, high sensitivity and high anti-jamming, the radar module can also support the perceiving micro-motion stationary human body on the basis of perceiving human movement.
Radar is an electronic device that uses electromagnetic waves to detect targets, and emits electromagnetic waves to illuminate the target and receive echoes, thereby obtaining information such as the distance, distance rate of change (radial speed), azimuth, angle and other information from the target to the point of electromagnetic wave transmission.
Fei Rui Intelligent 5.8G has an induction radar solution, supports FMCW ranging, delineates the sensing area, shields the interference outside the area, low power consumption and low cost, radar chip development, and integrates digital lock rings.
Typically less than 0.08W, a high-performance 32-bit MCU is integrated on a single chip. In addition to processing the radar's internal signals, MCUs can also replace some host computer systems. The radar module penetrates the non-metallic shell without opening holes, has strong penetration and good anti-interference.
The user can adjust the sensitivity and detection distance of the product by means of the host computer according to his needs. Powerful performance, rich algorithms, can be connected to other masters or sensors, can also be used as a master.
Based on the Doppler effect, the operating and 5.8GISM bands, the sensing distance is flexible and adjustable, using mature CMOS technology, single chip integration, cost-effective, with self-calibration function, free from external interference.
In the era of smart home, hardware products began to be intelligent, and human body presence induction is an indispensable function of smart home products.
The Fret Intelligent Radar Sensing Module operates at 5.8GHz, integrated radar transceiver, if the MID frequency circuit and MCU processing. Peripheral antennas and a small number of peripheral circuits constitute a complete radar sensor, which can be embedded in lamps, household appliances and various electronic products to achieve induction detection of human objects.
The advantages of radar in smart home human body induction mainly have three points: human body static induction; temperature smoke light environment anti-interference; can be hidden in the shell detection, secret good, smart home products can also be designed beautiful and generous.
Radar has so many advantages, is human induction overkill? I don't know if you have encountered a situation, that is, in public toilets, hotels and other places, in order to be intelligent and automated, many places are equipped with infrared human sensor equipment, but it is difficult to distinguish whether it is infrared or camera, always worried about being secretly photographed.
If these sensing devices are replaced by radar sensing, this safer and privacy-free approach can give us a better experience.
When infrared can only sense the temperature of people, radar can detect the slight movement of the human body, stationary induction, and then determine whether there is anyone present, which is more convenient for us to read quietly, go to the toilet, conference room meetings, etc., no longer need to move several times from time to time, is it more convenient? The answer is yes.
With the development of radar technology and the significant reduction in cost, radar is used for smart home anthropocene sensing. In fact, it's the right way to get close to consumers.
The radar module benefits from the chip's super radar sensing performance and professional signal processing capabilities, filters clutter interference through algorithms, realizes human movement, micro-motion, and stationary detection, and realizes the true existence sensing of the human body.
The human radar module detects more accurately and rejects false negatives. High sensitivity, fast response speed and low power consumption. Stable performance, wide sensing distance, high sensitivity, widely used in smart home, intelligent security, intelligent perception control and other fields.