Laser ranging device and method

A laser ranging and laser technology, applied in the field of lasers, can solve the problems of ignoring the reflectivity of the measured object, weak echo signals, and different strength of echo signals.

Inactive Publication Date: 2017-06-13
WUHAN WANJI INFORMATION TECH
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  • Summary
  • Abstract
  • Description
  • Claims
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Problems solved by technology

[0003] However, the existing laser distance measuring devices generally ignore the reflectivity of the measured object, and the laser reflection ability of different measured objects is different, resulting in different energy levels of echo signals
When the reflectiv...

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  • Laser ranging device and method
  • Laser ranging device and method

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Embodiment Construction

[0043] The following will clearly and completely describe the technical solutions in the embodiments of the present disclosure with reference to the accompanying drawings in the embodiments of the present disclosure. Obviously, the described embodiments are only some of the embodiments of the present invention, not all of them. Based on the embodiments in the present disclosure, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the protection scope of the present disclosure.

[0044] The invention provides a laser ranging device, such as figure 1 As shown, the device includes a main control module, an energy identification module, and a distance measurement module, wherein:

[0045] The energy identification module is connected to the main control module and includes a first laser emitting unit and a first laser receiving unit, and the first laser emitting unit is used to emit laser light to the measured object und...

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Abstract

The invention relates to a laser ranging device and method. The device comprises a main control module, an energy discrimination module, a distance measuring module and a timing discrimination module, the energy discrimination module is connected to the main control module and comprises a first laser transmitting unit and a first laser receiving unit, the distance measuring module is connected with the main control module and comprises a second laser transmitting unit and a second laser receiving unit, and the timing discrimination module is connected with the distance measuring module and the main control module. According to the laser ranging device, laser transmitting power, a photoelectric conversion coefficient and the like in the distance measuring module can be adjusted according to reflectance of measured objects, accurate ranging can be achieved no matter when the reflectivity of measured objects is high or low, so that ranging accuracy is improved.

Description

technical field [0001] The invention relates to the field of laser technology, in particular to a laser distance measuring device and method. Background technique [0002] The laser distance measuring device is widely used in the field of distance detection due to its high measurement accuracy and strong directionality. The laser distance measuring device uses a laser to send modulated laser pulses to the measured object, and the photoelectric converter receives the reflected laser pulses. , determine the distance between the device and the measured object according to the time difference between the emission and reception of the laser pulse. Specifically, the laser light emitted by the laser tube in the pulsed laser device is reflected on the object to be measured to form an echo optical signal, and the optical signal is converted into an electrical signal by a photoelectric converter, and then the electrical signal is amplified by an amplifying circuit. The amplified sign...

Claims

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Application Information

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IPC IPC(8): G01S17/10
Inventor 刘一郎张亮
Owner WUHAN WANJI INFORMATION TECH
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