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DSP-based vehicle-mounted radar speed measuring system

A vehicle-mounted radar and speed measurement technology, applied in the field of vehicle-mounted radar, can solve problems such as accuracy problems

Inactive Publication Date: 2018-09-14
WUHU HANGFEI SCI & TECH
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0003] The vehicle speed measurement system in the prior art mainly uses a photoelectric speed measurement sensor for speed measurement, which has high accuracy at low speed measurement, but when the speed exceeds 150, there is an accuracy problem
[0004] Therefore, provide a kind of vehicle-mounted radar velocity measuring system based on DSP, overcome the defective when utilizing the photoelectric velocity sensor velocity measurement in the prior art

Method used

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Embodiment Construction

[0026] Specific embodiments of the present invention will be described in detail below in conjunction with the accompanying drawings. It should be understood that the specific embodiments described here are only used to illustrate and explain the present invention, and are not intended to limit the present invention.

[0027] In the present invention, in the absence of a contrary statement, the orientation words included in the term, such as "upper, lower, inner, outer", etc., only represent the orientation of the term in the normal use state, or are understood by those skilled in the art. colloquial term and should not be construed as a limitation of the term.

[0028] Such as figure 1 As shown, the present invention provides a kind of vehicle-mounted radar speed-measuring system based on DSP, described vehicle-mounted radar speed-measuring system based on DSP comprises: radar probe, DSP module, FPGA module, signal amplification module, A / D converter and data transmission M...

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Abstract

The invention discloses a DSP-based vehicle-mounted radar speed measuring system comprising a radar probe, a DSP module, an FPGA module, a signal amplifying module, an A / D converter and a data transmission module. The radar probe is used for collecting and acquiring vehicle speed information and transforming the speed information into a sine wave signal; the signal amplifying module is used for amplifying the sine wave signal and inputting the value to the A / D converter; and the A / D converter transforms the inputted analog signal into a digital signal and outputting the digital signal to the FPGA module. The DSP module serves as the data processing center; and the data transmission module is used for outputting a speed value processed by the DSP module. With the vehicle-mounted radar speedmeasuring system, a defect that the photoelectric type speed measuring sensor for measuring the speed has the high precision in low-speed measurement but has low precision at the speed exceeding 150in the prior art can be overcome.

Description

technical field [0001] The invention relates to the field of vehicle radar, in particular to a DSP-based vehicle radar speed measuring system. Background technique [0002] Vehicle-mounted radar, as the name implies, is a radar used in automobiles or other ground motor vehicles. Therefore, it includes a variety of different radars based on different technologies (such as laser, ultrasonic, microwave), with different functions (such as detecting obstacles, predicting collisions, adaptive cruise control), and using different operating principles (such as pulse radar , FMCW radar, microwave shock radar). Microwave radar has important commercial significance in automotive radar. [0003] The vehicle speed measurement system in the prior art mainly uses a photoelectric speed measurement sensor for speed measurement, which has high precision at low speed measurement, but when the speed exceeds 150, there is an accuracy problem. [0004] Therefore, a DSP-based vehicle radar spee...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01S13/58G01S7/02
CPCG01S7/02G01S13/58
Inventor 宋琪舒航王威邓禹张家巍宋旋陈坤
Owner WUHU HANGFEI SCI & TECH
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