Laser distance measuring sensor

Abstract

The invention provides a laser distance measuring sensor which comprises a base, a laser transmitter, a scanning unit, an image processing unit and a data processing unit. The scanning unit comprises a motor connected with the base and a prism connected with the motor, and the motor is fixed on the base; the prism synchronously rotates with the motor and reflects and scans light beams emitted by the laser transmitter; the image processing unit comprises an ordinary CCD image sensor and a cylindrical concave mirror; the data processing unit is connected with the motor and records rotating angle information of the prism. Compared with a traditional laser distance measuring sensor, the laser distance measuring sensor is higher in measurement precision and sensitivity, smaller in size, lighter in weight, lower in cost and longer in working life and has large application value in the field of low-cost intelligent consumption.

Description

technical field [0001] The invention relates to a laser ranging sensor and belongs to the technical field of sensor manufacturing. Background technique [0002] Mobile robots need to perceive the surrounding environment, build maps and navigate during the movement process. Therefore, the mobile robot must have an effective sensor for sensing, mapping and obstacle avoidance. At present, laser ranging sensors have become the first choice for mobile robot ranging devices due to their wide measurement range and high sensitivity. Generally, the laser distance measuring device includes a laser emitter and an image sensor arranged at a certain angle, and the image sensor receives light emitted by the laser emitter and fed back from surrounding obstacles. According to the different specifications of the lens, the ranging range is also different. Therefore, it is necessary to use a lens with appropriate specifications and adapted to the image sensor according to the requirements of...

AI Technical Summary

Problems solved by technology

However, in order to realize power supply and communication to rotating parts, such devices need to use conductive slip rings and other equipment to realize electrical signal transmission between rotating bodies, which greatly affects the service life of such devices

[0004] In addition, the traditional triangular ranging system is not easy to miniaturize and with the continuous development of chip technology, the imaging requirements of the supporting optical system are getting higher and higher, and the traditional optical equipment can no longer fully meet the demand

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