Laser receiving device and laser spot center identification method
A technology of laser receiving and laser spot, which can be used in measuring devices, instruments, surveying and mapping and navigation, etc., and can solve problems such as inapplicable laser three-point dynamic positioning system
Inactive Publication Date: 2015-07-15
HUNAN AGRICULTURAL UNIV
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Problems solved by technology
In the laser three-point dynamic positioning system, the laser receiving device accurately receives two laser signals of different wavelengths and identifies the center of the laser spot, which is the basis for precise positioning of the positioning system. The receiving device is a static single-point laser signal received, not suitable for laser three-point dynamic positioning system
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Embodiment Construction
[0034] see figure 1 , the device of the present invention comprises:
[0035] a laser receiving target for detecting laser signals of different wavelengths emitted by at least two laser transmitters;
[0036] A laser spot center calculation unit for calculating laser signal-related target information;
[0037] The laser receiving target rotation control mechanism is used to control the initial reset of the laser receiving target and move with the incident laser signal to obtain the best incident angle;
[0038] It is used to communicate with the outside world to obtain the corresponding rotation angle of the laser receiving target, and transmit the center position of the laser spot to the communication unit of the peripheral;
[0039] The laser receiving target rotation control mechanism includes a rotating shaft, a rotating shaft bracket, a support bearing, a coupling, a motor, a motor support plate and a zero position detection unit, the rotating shaft bracket includes an ...
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The invention provides a laser receiving device for dynamic three-point laser positioning and a laser spot center identification method, which are used for receiving at least two beams of laser and realizing accurate identification of a laser spot center. The laser receiving device comprises a laser receiving target for detecting at least two laser signals with different wavelengths, a laser spot center resolving unit for resolving related targeting information of the laser signals, a laser receiving target rotation control mechanism which is used for controlling the laser receiving target to be initially reset and to move along the incident laser signals, and a communication unit which is communicated with the outside; a laser incidence angle is adjusted, and thus when a plurality of beams of laser are injected, the optimal incidence angle can be obtained; the communication unit is used for obtaining a corresponding rotary angle of the laser receiving target and transmitting the position of the laser spot center to the outer side, so that the laser receiving device can accurately receive the laser signals and identify the spot center, and technical support for positioning and resolving of a three-point laser positioning system are provided.
Description
technical field [0001] The invention belongs to the technical field of automatic positioning, and relates to a laser receiving device for laser positioning and a laser spot center identification method. Background technique [0002] Automatic positioning technology is more and more widely used in modern industrial and agricultural production. Due to the advantages of small size, light weight, fast speed and small error, laser is widely used in horizontal and vertical calibration in the construction industry, and in agriculture. Many researchers have paid attention to its application, such as laser flattening, laser breeding, laser pest control, etc. However, the research on laser technology in positioning has just started. In the laser three-point dynamic positioning system, the laser receiving device accurately receives two laser signals of different wavelengths and identifies the center of the laser spot, which is the basis for precise positioning of the positioning system...
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IPC IPC(8): G01C15/00G01B21/00
Inventor 蒋蘋胡文武罗亚辉戴宁湘刘建廷刘林
Owner HUNAN AGRICULTURAL UNIV