Vehicle-mounted road roughness acquisition system and working method based on acceleration sensor
An acceleration sensor and road surface uneven technology, applied in general control systems, control/regulation systems, instruments, etc., can solve the problems of inconvenient acquisition, inaccurate positioning, and complicated operation.
Inactive Publication Date: 2017-05-03
JIANGSU UNIV OF SCI & TECH
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[0003] The purpose of the present invention is to provide a vehicle-mounted road roughness acquisition system based on an acceleration sensor to solve the technical problems of inconvenient collection, complicated operation and inaccurate positioning of traditional road roughness acquisition instruments in order to meet the needs of existing roads
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[0068] The present invention will be described in further detail below in conjunction with the accompanying drawings.
[0069] exist figure 1 Among them, the vehicle-mounted road roughness acquisition system based on the acceleration sensor consists of a primary voltage regulator circuit 1, a secondary voltage regulator circuit 2, an acceleration sensor 3, a signal processing circuit 4, a single chip microcomputer 5, a Bluetooth sending module 6, and a Bluetooth receiving module 7 , PC 8 and GPS module 9 components. Wherein, the acceleration sensor 3 is fixed on the suspension of the left rear wheel of the automobile by strong magnetic force, the output end of the acceleration sensor 3 is connected to the input end of the signal processing circuit 4, the output end of the signal processing circuit 4 is connected to the AD conversion interface of the single-chip microcomputer 5, and the output end of the single-chip microcomputer 5 The output terminal of the built-in UART seri...
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The invention relates to a vehicle road surface waviness collection system based on an acceleration sensor. The vehicle road surface waviness collection system comprises a first-stage voltage stabilizing circuit, a second-stage voltage stabilizing circuit, an acceleration sensor, a signal processing circuit, a microcontroller, a Bluetooth emitting module, a Bluetooth receiving module, a PC and a GPS module, wherein the output terminal of the acceleration sensor is connected with the input terminal of the signal processing circuit, the output terminal of the signal processing circuit is connected with the microcontroller, the output terminal of the microcontroller is connected with the input terminal of the Bluetooth emitting module, the output terminal of the Bluetooth receiving module is connected with the input terminal of the PC, the output terminal of the GPS module is connected with the input terminal of the Bluetooth receiving module, the power supply output terminal of a vehicle cigar lighter is connected with the input terminal of the first-stage voltage stabilizing circuit, the input terminal of the first-stage voltage stabilizing circuit is connected with the output terminal of the second-stage voltage stabilizing circuit, the first-stage voltage stabilizing circuit supplies the power for the acceleration sensor, the signal processing circuit and the GPS module, and the second-stage voltage stabilizing circuit supplies the power for the microcontroller and the Bluetooth emitting module. The present invention further discloses a work method of the vehicle road surface waviness collection system based on the acceleration sensor.
Description
technical field [0001] The invention relates to a road surface roughness collection system and a working method, in particular to a vehicle-mounted road surface roughness collection system and a working method based on an acceleration sensor, belonging to the field of road surface feature recognition. Background technique [0002] Pavement roughness is usually used to describe the degree of undulation of the road surface. At present, domestic road surface roughness collection mainly uses laser inertial roughness meter and vehicle-mounted mechanical bump accumulator. The detection principle is to reflect the smoothness of the road surface according to the vertical bounce displacement of the vehicle. With the continuous increase of various domestic roads and the continuous popularization of IRI values, the application of traditional vehicle-mounted mechanical bump accumulators has begun to be restricted. Its main limitation is that the instrument must be calibrated regularly...
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IPC IPC(8): G01C7/04G05B19/042
CPCG01C7/04G05B19/0423
Inventor 刘庆华申继鹏徐泰肖馨舒
Owner JIANGSU UNIV OF SCI & TECH