UWB (Ultra Wideband) centimeter level positioning technology is to achieve high-precision positioning by sending and receiving broadband pulse signals MIC29302WU-TR Wireless communication technology. It has the characteristics of high precision, high reliability and strong anti-interference ability, so it is widely used in automobile digital keys.
First, UWB centimeter level positioning technology can be used for indoor positioning of car digital keys. Traditional wireless positioning technologies, such as GPS, have low accuracy in indoor positioning and are vulnerable to obstructions. UWB technology can achieve centimeter level indoor positioning accuracy, accurately identify the location of the owner, and facilitate the owner to operate the vehicle.
Secondly, UWB technology can be used for the anti-theft function of car digital keys. Traditional car keys are based on radio frequency identification (RFID) technology, and are vulnerable to signal duplication and interference attacks. The UWB technology can provide higher security. By measuring the arrival time difference of the signal, the distance between the vehicle and the key can be measured, thus preventing signal duplication and interference attacks.
In addition, UWB technology can also be used for the tracking function of vehicle digital keys. When the car owner loses or steals the key, the specific position of the key can be located through UWB technology to facilitate the owner to retrieve the lost key.
NCJ29D5 is a commonly used UWB chip for mass production burning of UWB centimeter level positioning technology. NCJ29D5 chip has the advantages of low power consumption, high sensitivity and high integration, and is suitable for application scenarios such as automobile digital keys.
Mass production burning refers to burning the firmware program on the chip into the chip to make it a usable product. In the mass production burning process, the following steps are required:
1. Prepare burning equipment and tools: including burner, connecting line, burning software, etc.
2. Prepare to burn firmware program: prepare firmware program files to be burned according to product requirements.
3. Connect the chip and the burning device: connect the NCJ29D5 chip with the burner through the connecting line.
4. Setting burning parameters: set the relevant parameters of the burner, such as burning speed, burning mode, etc., according to chip specifications and product requirements.
5. Execute the burning operation: burn the prepared firmware program file to the chip by burning the software. During the burning process, it is necessary to ensure that the connection between the chip and the burner is stable to avoid burning errors.
6. Verify the burning result: After the burning is completed, it is necessary to verify whether the firmware program in the chip is burned correctly. The data in the chip can be read and compared with the firmware program before burning to ensure consistency.
7. Test chip function: After the burning is completed, the chip function test can be carried out to ensure that the chip works normally and meets the product requirements.
To sum up, UWB centimeter level positioning technology is widely used in car digital keys, which can realize indoor positioning, anti-theft and tracking functions. NCJ29D5, as a commonly used UWB chip, can burn firmware programs into the chip through mass production burning, making it a usable product. Mass production burning needs to prepare burning equipment and tools, set burning parameters, perform burning operations, and verify the burning results and test chip functions.
