2 Motion Detection Technology Comparison

With the development of technology and increasing demand for intelligent sensing, more and more sensor technologies have entered daily life, such as passive infrared (PIR), LIDAR and 3D ToF, optical cameras, and microwaves. Figure 2-1 compares these technologies and lists the pros and cons.

Figure 2-1 Comparison of common motion detection sensor technologies

Overall, compared to other sensor technologies, mmWave has many advantages, such as high sensitivity, extended range, and insensitivity to environment. Currently, mmWave radar is well known in automotive applications (the largest application market.) However, the industrial market includes intelligent transportation, security monitoring, smart home, smart health care, industrial measurement, and other fields. The most extensive application scenarios, among which smart home and smart health care are emerging application fields, has attracted high attention in the past two years, and has great development potential in the future.