Multi-path Vl5310X laser ranging calibration method and drive
A technology of laser ranging and calibration method, used in radio wave measurement systems, instruments, electrical digital data processing, etc., can solve the problems of inability to flexibly calibrate Vl53l0X, no calibration function calibration function, etc.
Pending Publication Date: 2020-10-23
江苏贝叶斯机器人有限公司
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Problems solved by technology
[0005] The technical problem to be solved by the present invention is: in order to solve the problem that the existing Vl53l0X driving method often does not have a calibration function or only has a calibration function when it is powered on, and cannot flexibly calibrate Vl53l0X to improve measurement accuracy, the present invention provides a multi-channel Vl53l0X The laser ranging calibration method, with a self-calibration program, effectively solves the above existing problems
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[0025] The present invention is described in further detail now in conjunction with accompanying drawing. These drawings are all simplified schematic diagrams, which only illustrate the basic structure of the present invention in a schematic manner, so they only show the configurations related to the present invention.
[0026] A multi-channel Vl53l0X laser ranging calibration method and drive, comprising the following steps,
[0027] 1) The I2C address of Vl53l0X will be lost after restarting, so the MCU needs to configure the address for the specified module before initialization, and enable the specified Vl53l0X laser ranging module through a specific chip select pin. At this time, only this module can communicate with MCU communication, configure the address of the module through the I2C bus and perform subsequent configuration;
[0028] 2) Query the calibration information in the MCU internal flash storage area corresponding to the Vl53l0X module address, and if it has b...
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The invention relates to the technical field of multipath sensor driving and especially relates to a multi-path Vl5310X laser ranging calibration method. Driving and calibration of a Vl5310X laser ranging module can be achieved without manual intervention, and system errors caused by factors such as an installation position and the like can be reduced to a great extent through a self-calibration function; and moreover, calibration data can be stored after calibration, losses are avoided during power failure, and quick response can be carried out without calibration during power-on each time. According to the method, measurement data can be monitored in real time through a serial port, if data exception is found, a calibration command can be sent to calibrate an abnormal sensor, and variousscenes can be flexibly adapted; according to the method, a flash storage area is reasonably planned to save a flash space, and repeated erasing and writing can be carried out without influencing a main program; and the invention further provides a multi-path Vl5310X laser ranging calibration drive.
Description
technical field [0001] The invention relates to the technical field of multi-channel sensor driving, in particular to a multi-channel Vl53l0X laser ranging calibration method. Background technique [0002] The I2C bus is a simple, two-way two-wire synchronous serial bus developed by Philips. It only needs two wires to transmit information between devices connected to the bus. It has high reliability, low implementation cost, and can mount multiple peripherals through a multi-address mechanism. It is now a common data bus. Laser ranging has small size, high measurement accuracy, and low power consumption, so it is widely used in small and medium distance measurement. [0003] The existing short-distance ranging scheme often adopts the ultrasonic ranging method. Ultrasonic ranging has a large volume, a long measurement time, and a large measurement dead zone. It is difficult to ensure the measurement accuracy at short distances. Realize multi-sensor ranging array in the spac...
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IPC IPC(8): G01S7/497G06F13/42
CPCG01S7/497G06F13/4282
Inventor 王心源
Owner 江苏贝叶斯机器人有限公司