Not long ago, Yingfeiling launched a 60GHz Doppler radar motion sensor for the Internet of Things to locate the Internet - BGT60LTR11AIP, the author is fortunate and actually experienced. BGT60LTR11AIP uses a minimum motion sensor on the market, with integrated transmission and reception antennas, and integrated detectors for motion and motion direction. The small body does have a powerful function, and the BGT60LTR11AIP radar motion sensor can achieve advanced radar sensing, including presence detection, tracking, important sensing and gesture control. Micro-motion in millimeters can be detected, which is an ideal sensor for short distance positioning in monitoring, lighting, smart home appliances and Internet of Things applications. Let's explore the author!
Open box
After the box is a small circuit board, there is a Micro-USB data cable, it seems that you can use the data cable to connect the board and the computer can be used, and the design is very simple.
Below we learn more from the hardware composition, software development, actual tests, etc., learn more about the Radar motion sensor of Infineon.
2. Hardware resource introduction
Let's take a look at the hardware resources of this BGT60LTR11AIP 60GHz radar motion sensor kit.
This kit includes two parts: substrate MCU7 and radar sensors, the entire plate shape is very small, and the radar substrate is a 40.64 mm x25.4 mm PCB, providing a general sensor interface for radar sensors. The radar sensor board is only 20 x 6.25 mm size, and the two boards are connected through a high speed interface. The core device on the radar substrate is ATMEL's ATSAMS70Q21, which is a 32-bit ARM Cortex M7 core microcontroller. The clock frequency is up to 300MHz, and the MCU can perform radar data processing or forward the sensor data to the USB interface or Arduino MKR interface.
The radar substrate MCU 7 has two radar sensor interfaces, so two sub-cards can be installed, and each sensor sub-card has an EEPROM, which is used to store a descriptor indicating the substrate and sensor information. In order to be able to communicate with the radar sensor, the substrate provides SPI connection, two ADC channels, a DAC channel, and 10 GPIO pins. There is a RGB LED on the board to indicate its status. When the board is activated, the LED flashes. If the radar sensor is detected, the LED will become green. Let's take a look at this motion sensor.
3.BGT60LTR11AIP Radar Motion Sensor Introduction
Infineon BGT6OLTRI1AIP is a fully integrated microwave motion sensor, including an antenna package (AIP), and the movement and movement of the built-in detector. The state machine can operate the sensor without using any external microcontroller. In this default mode. It can detect human objects within 5 meters, power consumption below 5 mW, with these characteristics, in applications where low power or battery power supply, small radar solutions are expected to replace traditional PIR sensors and have broad application prospects. The PCB made of the FR4 material used by the BGT60LTR11AIP radar motion sensor can operate at a low power 60GHz ISM band. The radar sensor board size is only 20 x 6.25 mm size, and the built-in motion detector has a variety of operation modes, including a completely autonomous mode, power-on does not need to configure parameters, of course, if we need to adapt your own application, Performance parameters can also be adjusted, including detection sensitivity, holding time, and operating frequency. Adjusting parameters can use English GUI tools, and the operation is also very simple. With BGT6OLtr11AIP small radar solutions, we can quickly integrate radar technology into our application, do not require special knowledge in radio, antenna design, and radar signal processing, which is very friendly for engineers. Let's take a look at the use of GUI software.
4. Application operation
BGT60LTR11AIP Radar Motion Sensor Unpacking, with PC Application Radar GUI, used to display and analyze the acquired data in time domain and frequency domain. The radar time domain signal can be extracted through the GUI, allowing advanced debugging and algorithm development. Let's take a look at the operation of the BGT60LTR11AIP radar motion sensor. Follow the first four steps listed below, download and install some supporting tools.
First we entered the website above the box, search for 60GHz Radar in the search bar, click on the blue font 60GHz Radar
Click Tools & Software, then and Blue Font Toolbox
Install the software according to the steps given, open the software after installation
Click Radar GUI
Select the correct COM port, you can use it after connecting the board. This part on the left is the user configuration area, which can be adjusted to the sensor parameters. On the right is the frequency domain and time domain display of the sampling signal, and the motion and motion direction tracking display area.
In order to test its performance, we arrange a classmate to walk in the front radius of the sensor, 14 meters in the sector area of the 160 degree, can detect a person in front of whether there is a person walking, more magical is when we change the direction of movement The radar can also accurately capture changes in the direction of walking, and it can be said that it is very powerful. Through the above test We found that the data recorded by the BGT60LTR11AIP 60GHz radar motion sensor is still more accurate, and very sensitive.
Summarize
Infineon BGT60LTR11AIP Radar motion sensor has a launch antenna and a receiving antenna. Microfunctions in millimeters can be detected. This enables advanced radar sensing, including presence detection, tracking, important sensing and gesture control. Based on the above functions, the radar motion sensor can be applied to smart home, security, screen interactive system, lighting control, home appliance control, and robots, etc., in addition, it can be used in health care, driver assistance and industrial applications. Sign track. Our actual test found that the data of the radar is very accurate, and the error is within the allowable range. It can be said that this is a simple and excellent radar motion sensor.
Original statement: This article is originally founded in the Circuit City, if you need to reprint, please indicate the source!
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