Laser radar based positioning method and device
A technology of laser radar and positioning method, which is applied in the field of electronic information and can solve the problems such as the inability of positioning and two-dimensional positioning of targets that are not on the scanning section.
Inactive Publication Date: 2017-08-18
HUAQIN TECH CO LTD
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[0005] The present invention provides a laser radar-based positioning method and device to solve the technical problems in the prior art that the laser radar cannot locate the target not on the scanning section, and can only perform two-dimensional positioning on the target on the scanning plane
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[0039] In order to make the purpose, technical solutions and advantages of the present invention clearer, the present invention will be further described in detail below in conjunction with the accompanying drawings. Apparently, the described embodiments are only some of the embodiments of the present invention, not all of them. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the protection scope of the present invention.
[0040] The laser radar-based positioning method in the embodiment of the present invention can be applied to a laser radar device, figure 1 It is a structural schematic diagram of the laser radar device, such as figure 1 As shown, the lidar device includes a light projecting unit 100 , a light receiving unit 200 and a processing unit 300 , and the light projecting unit 100 and the light receiving unit are respectively connected to the processi...
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An embodiment of the invention discloses a laser radar based positioning method and device. The method includes that a laser radar device controls light beams sent by a laser to be reflected by a reflector and sends out the light beams subjected to reflection, and receives reflected light beams returned from N positions in a preset space range; according to the time interval of the emitting time and the receiving time of light beams of at least three positions among the N positions, determining the distance between the at least three positions and the laser radar device; and determining the coordinators of the laser radar device through combining with the coordinators of the at least three positions. Since the laser radar device can control outgoing light beams reflected by the reflector to scan in the preset space range after the laser emits the light beams and a scanning plane includes a first plane and a second plane perpendicular to each other, the laser radar device can obtain the distance and the coordinators of the different positions in the three-dimensional space and the three-dimensional coordinators of the laser radar device can be determined. The positioning accuracy is improved effectively.
Description
technical field [0001] The invention relates to the technical field of electronic information, in particular to a laser radar-based positioning method and device. Background technique [0002] With the continuous development of information technology, the application of lidar is not only limited to the military field, but also can be used in indoor positioning technology to provide people with various services. [0003] In the prior art, when laser radar is used for indoor positioning, the laser beam can be scanned on a tangent plane in a certain direction by rotating the light emitter in the laser radar, and then the distance between the target and the laser radar can be determined by the laser beam reflected back from the target. Then, according to the outgoing direction of the laser beam, the position coordinates of the target on the tangent plane are determined. However, since the lidar can only scan in a certain direction, there is a problem that the target can only be...
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Inventor 刘术
Owner HUAQIN TECH CO LTD