What is radar sensor module?

Radar sensing technology has made a lot of big achievements in the civilian field, and it is used in a lot of smart electronic products, including smart home products, intelligent transportation, outdoor lamps and so on. If you don’t know about radar sensor module, you will learn a lot after reading this article.

What is radar sensor module?

Radar sensor module is an automatic sensor control product with high sensitivity, long sensing distance and large sensing angle. Through the microcontroller program, the sensing distance is adjustable and the time is adjustable. Radar sensing module adopts plane antenna to transmit and receive, it is an active sensor, the sensor transmits high-frequency electromagnetic wave (Hz) and receives their echo.

When someone enters the detection range of the product, the microwave radar module responds and makes indication action. The microwave radar sensing module output Vout outputs a TTL high level, and after a delay cycle, the output returns to a TTL low level.

After the radar sensing module is activated, in the delay time period, if there is human activity, the module output Vout will continue to output a TTL high level, until the person leaves and after a delay cycle output low level. Compared with infrared products, the microwave radar sensing module has a long distance, wide angle, no dead zone, and is not affected by ambient temperature and dust.

Classification of Microwave Radar Sensors

Millimeter-wave radar sensors
A millimeter wave radar sensor is a type of radar that operates in the millimeter wave range of the electromagnetic spectrum (30-300 GHz).
This technology is commonly used to detect objects, measure speed and monitor environmental conditions. Millimeter-wave radar uses high-frequency radio waves to produce images of objects, such as vehicles or buildings. These images are then analyzed and interpreted by system software to provide real-time information about what the object is, where it is located, how fast it is moving and other relevant data.

Millimeter-wave sensors can be used in a wide range of applications, including automotive safety systems, unmanned aerial vehicles (UAVs), security systems, and traffic monitoring. They are often used in conjunction with other sensors such as cameras or LiDAR systems to provide a comprehensive picture of the environment.

Millimeter-wave radar sensors are becoming increasingly popular because of their ability to detect objects in a variety of conditions and over short distances (up to several hundred meters). They can also accurately measure the speed, range and angle at which an object is moving.

Continuous Wave Doppler Radar Sensors
A continuous wave Doppler radar sensor (CWDR) is a type of Doppler radar that uses continuous wave (CW) radio frequency signals to measure the speed and direction of nearby objects. It is commonly used to detect and track moving objects such as airplanes, cars, boats, birds, etc. Continuous wave Doppler radar sensors work by transmitting a continuous signal to a target object, which is reflected back from the surface of the object. The time difference between signal transmission and reception can be used to calculate the speed and direction of the object’s motion.

CW Doppler radar sensors typically emit signals at a frequency of around 915 MHz, which allows for a more precise determination of an object’s speed. It also helps to reduce power consumption by using continuous wave signals compared to pulsed Doppler radar.

FM Continuous Wave Radar Sensors
Frequency Modulated Continuous Wave (FMCW) radar sensors are a type of active remote sensing system.FMCW radar uses radio waves to measure the distance and speed of an object. This type of radar uses frequency modulation, where the frequency of the transmitted signal varies continuously over time, to provide high resolution in distance and speed measurements. In addition, FMCW radars are capable of detecting multiple targets simultaneously and can be used in a variety of applications such as target tracking, navigation systems, surveillance and automotive safety systems.

The frequency of the radar’s return signal is similar to the frequency of the transmitted signal, but the amplitude is different. By comparing these two frequencies and amplitudes, the distance and speed of an object can be calculated. The main advantage of FMCW radar over pulse-based radar is its higher resolution in distance and speed detection.

Applications for Radar Sensing Modules

Despite their limitations, radar sensing modules are widely used in many applications. They have been used in the military and aerospace industries for decades because of their ability to accurately measure distances without any additional maintenance or calibration. In recent years, they have also become popular in consumer and commercial applications such as self-driving cars and robots. Radar sensing modules can be used for a variety of purposes, including but not limited to.

Military
Radar sensing modules are invaluable to the military and aerospace industries because of their ability to accurately measure distance and speed. They can be used for surveillance, tracking, target identification, navigation, weather forecasting and communication. Radar sensing modules can also be used in missile guidance systems and countermeasure applications such as jamming or spoofing enemy radar signals.

Security Systems
Radar sensing modules are also commonly used in security systems. They can be used to detect motion and sound as well as provide an early warning system against intruders or unwanted visitors. Radar sensing modules are particularly useful in outdoor environments because they can detect motion at longer distances than other types of sensors.

Automotive electronics
Radar sensing modules are increasingly being used in vehicles to provide a greater range of safety features. These include adaptive cruise control, lane departure warning, blind spot detection and automatic emergency braking. Radar sensing modules can be used to detect other vehicles around the car, helping to alert drivers to potential hazards on the road. They also aid navigation by providing accurate distance and speed measurements needed for autonomous driving applications.

Intelligent Transportation Radar
Radar sensing modules are also used in intelligent transportation systems. Radar sensing modules measure the speed of vehicles and can be used to detect congestion on roads. Traffic management systems can then use this data to adjust traffic flow or implement strategies such as variable speed limits, which can help reduce congestion and improve road safety.

Medical
Radar sensing modules have been used in medical environments to guide doctors and surgeons during surgical procedures. For example, radar sensing modules can be used to accurately measure the distance between two organs or between an organ and a bone. This helps to ensure that operations are performed accurately and without error. Radar sensing modules can also be used to detect tumors, allowing for early diagnosis of cancer cells.

They can also measure chest movements to recognize breathing patterns. This has been used clinically to monitor patients under sedation or general anesthesia to help doctors adjust dosages as needed.

Motion
Radar sensing modules are being used in motion to analyze player performance and measure ball speed. For example, golfers can use radar sensing modules to measure the speed and angle of their swing to help improve their accuracy. Baseball players can use radar sensing modules to measure the speed of their pitches, which is important for improving their pitch selection and control. In tennis, radar sensing modules can be used to track the speed of serves and returns to help players determine where they need to improve.

Advantages of microwave induction module

1.Accurate Detection
Based on the Doppler effect, microwave radar sensor BR38 realizes object sensing by transmitting electromagnetic waves to the target and accepting its echo. Compared with traditional sensors, microwave radar does not miss judgment, thus increasing the probability of detecting objects.

2.Intelligent Sensing
When someone enters the sensing detection area, the light will be on automatically. When the microwave radar sensor detects that there is no pedestrian walking within the detection area, the microwave radar sensor enters the delay time, and no one passes within the delay time. After the delay time is over, the light will go out. Microwave radar sensors can not only detect dynamic objects, but also detect subtle movements, do not have to worry about the lights will go out because of the small range of action, the sensor can not sense the presence of the human body.

3. Strong anti-interference
Microwave radar has a strong anti-interference ability, not affected by rain, haze, snow and other environmental impact, can work around the clock. Microwave radar due to its strong anti-interference ability, in the haze in serious areas can still work around the clock.

4. Strong adaptability
Microwave radar sensor has super penetration, can penetrate sheet, ordinary glass, clothing and other non-metallic materials, microwave radar is small in size, can be hidden in the lamps and lanterns, can be used in the study, corridor, garage, lighting places.

5. Energy saving and environmental protection
Microwave radar starts smart devices by detecting the presence of human body. For example, microwave radar can control the brightness of smart lights by detecting the presence of the human body, effectively reducing lighting power consumption, reducing energy waste, and achieving the purpose of energy saving and emission reduction.
It is believed that the development of microwave radar technology will become more and more mature in the near future. More and more people use smart devices about microwave radar.

Why choose us

LST is a professional microwave radar sensor module manufacturer, our products are widely used in smart home, we have a professional R & D team, automated production and processing equipment, we can provide customers with one-stop radar module production and assembly services. We have been providing manufacturing services for many companies all over the world, LST Technology will be your best choice.