Laser radar multi-channel data transmission method, laser radar and application thereof
A data transmission method, laser radar technology, applied in the direction of using re-radiation, instruments, measuring devices, etc., can solve the problem of not being able to meet the data transmission volume, achieve the effect of solving the problem of not being able to output in real time and improving the efficiency of data transmission
Active Publication Date: 2019-09-20
SHENZHEN UNIV
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Problems solved by technology
[0004] The technical problem to be solved by the present invention is to provide a laser radar multi-channel data transmission method, laser radar and its application, aiming to solve the situation that the existing single-channel data transmission method of the laser radar system cannot meet the large amount of data transmission
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[0032] In order to make the object, technical solution and advantages of the present invention clearer, the present invention will be further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described here are only used to explain the present invention, not to limit the present invention.
[0033] The invention provides a laser radar multi-channel data transmission method, such as figure 1 shown, including the following steps:
[0034] Step S1. Modulating and converting the measurement data into N channels of standard first electrical pulse signals, where N is an integer greater than 2;
[0035] Step S2, driving N channels of first electric pulse signals to light-emitting components with different light-emitting wavelengths to obtain N channels of optical pulse signals with different wavelengths; and filtering the N channels of optical pulse signals with different wavelengths to obta...
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The invention provides a laser radar multi-channel data transmission method, a laser radar and an application thereof. The multi-channel data method comprises the following steps of S1, modulating and converting measured data into N channels of first standard electrical pulse signals, where the N is an integer greater than 2; S2, using the N channels of the first electrical pulse signals to drive light-emitting components with different light-emitting wavelengths to obtain the N channels of optical pulse signals with different wavelengths; and filtering the N channels of optical pulse signals with different wavelengths to obtain the N channels of separated optical pulse signals; S3, correspondingly converting the N channels of separated optical pulse signals into the N channels of second standard electrical pulse signals; and S4, modulating, converting and combining the N channels of the second electrical pulse signals into the measured data. In the invention, laser radar single-channel transmission data in the prior art is improved into multi-channel transmission data, which greatly improves data transmission efficiency, and a problem that real-time output can not be performed when a data volume is too large in the prior art is solved.
Description
technical field [0001] The invention belongs to the technical field of laser radar, and in particular relates to a laser radar multi-channel data transmission method, laser radar and applications thereof. Background technique [0002] The data transmission module of the existing laser radar system includes a transmitting end located in the rotating part of the distance measurement and a receiving end (one sending, one receiving) located in the fixed part, which undertakes the data communication between the rotating part and the fixed part of the radar function. [0003] As the TOF (Time of Flight, time of flight) ranging technology becomes more and more mature, the sampling frequency of the multi-line TOF lidar is higher, and the scanning speed is faster, and the data transmission volume between the rotating part and the fixed part of the lidar ranging is also increasing. With the increase, the existing single-channel data transmission can no longer meet the requirements. ...
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Login to View More IPC IPC(8): G01S17/10G01S7/486
CPCG01S7/486G01S7/4861G01S17/10
Inventor 蒙山罗忠军
Owner SHENZHEN UNIV