Laser range finding system
A laser ranging and laser beam technology, applied in the laser field, can solve the problems of complex structure, circuit, easy to be interfered by external, signal trouble, etc., to reduce the influence, improve the signal-to-noise ratio and the recognition rate.
Pending Publication Date: 2018-04-27
HANGZHOU OLE SYST CO LTD
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[0005] The above two methods are susceptible to external interference, and it is troublesome to process the received signal. It is necessary to remove the mixed signal, which affects the measurement accuracy and response time, so there are problems such as complex structure and circuit, and high cost.
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[0020] The advantages of the present invention will be further elaborated below in conjunction with the accompanying drawings and specific embodiments.
[0021] Reference will now be made in detail to the exemplary embodiments, examples of which are illustrated in the accompanying drawings. When the following description refers to the accompanying drawings, the same numerals in different drawings refer to the same or similar elements unless otherwise indicated. The implementations described in the following exemplary examples do not represent all implementations consistent with the present disclosure. Rather, they are merely examples of apparatuses and methods consistent with aspects of the present disclosure as recited in the appended claims.
[0022] The terminology used in the present disclosure is for the purpose of describing particular embodiments only, and is not intended to limit the present disclosure. As used in this disclosure and the appended claims, the singular...
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The invention provides a laser range finding system. The laser range finding system comprises a transmitting part and a receiving part. The transmitting part comprises a laser transmitting group whichat least comprises two or more laser sources and a light combining device. The receiving part comprises a light filter group which at least comprises two or more light filters, a laser receiving group which at least comprises two or more laser receivers and a signal processor. The laser sources simultaneously transmit laser beams to the light combining device, and the laser beams are combined into an emergent laser beam to be transmitted to a target object through the light combining device. The emergent laser beam is reflected by the target object to form the reflected laser beam. The reflected laser beam is transmitted to the light filters to be incident to the laser receivers through the light filters. The laser receivers transmit the signal of the laser beam to the signal processor. The signal processor synthesizes the received signal.
Description
technical field [0001] The invention relates to the field of laser technology, in particular to a laser ranging system. Background technique [0002] Laser range finder, as a non-contact measuring instrument, has been widely used in remote control, precision measurement, engineering construction, safety monitoring and intelligent control and other fields. Phase laser range finder is characterized by its high precision, low power and convenient It is suitable for civil use and has a large market and application prospect. The phase distance measurement method obtains the distance traveled by the light wave by measuring the phase shift generated after the modulated light wave propagates through the air. [0003] The traditional phase laser range finder generally adopts the mode of single transmission and double reception or double transmission and single reception. Frequency, the mixing signal generated on the inner optical path can be used as the reference signal S1, the las...
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IPC IPC(8): G01S17/08G01S7/481
CPCG01S7/4816G01S17/08
Inventor 张瓯汪永平
Owner HANGZHOU OLE SYST CO LTD