Laser distance measuring device based on time information encoding and method thereof

Abstract

A laser distance measuring device based on time information encoding includes a signal transmitting unit and a signal receiving and processing unit. The signal transmitting unit includes a laser transmitting module, a timing module I, an encoding module, a signal control module and a trigger switch. After the signal control module causes time information of the timing module I to generate laser pulse encoding through the encoding module, signal sending is performed through the laser transmitting module. The signal receiving and processing unit includes a laser receiving module, a timing moduleII, a control processing module, a decoding module, and an output module. After the control processing module causes the signal received by the laser receiving module to be decoded through the decoding module to obtain time information, the time information and time information of the timing module II are calculated, and distance measuring data is output through the output module. The signal transmitting unit and the signal receiving and processing unit work independently, the measurement of time intervals depends on the precise timing of timing devices, and the encoding output and decoding of the laser emission time, so that a measured party can obtain distance information.

Description

Technical field [0001] The invention belongs to the technical field of pulsed laser ranging, in particular to a laser ranging device and method based on time information encoding. Background technique [0002] The principle of pulsed laser ranging is that by measuring the time interval △T between the emission time and receiving time of the pulsed laser, according to the formula L=C*△T / 2, the distance between the ranging device and the measured target can be calculated Distance L, where C is the speed of light. In the laser ranging device in the prior art, the ranging information can only be obtained at the ranging device, and the distance information cannot be obtained at the measured target. For some distance measurement environments such as tunnels and other long-distance operations, the distance measurement method that can only obtain the distance measurement information at the distance measurement device will seriously affect the work efficiency. At the same time, the accur...

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Problems solved by technology

[0003] In order to solve the technical problems that the laser distance measuring device cannot obtain distance information at the measured target in the prior art, resulting in inconvenient use and low work efficiency, the present invention provides a laser distance measuring device and its method based on time information coding

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