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Road condition sensing device and method and unmanned vehicle thereof

A technology for unmanned vehicles and road conditions, applied in the field of unmanned vehicles and road conditions sensing devices, can solve the problem that the built-in system can not well meet the unmanned driving and other problems.

Inactive Publication Date: 2017-05-31
临沂高新区鸿图电子有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The road conditions include good asphalt and cement roads, as well as more complicated gravel roads and potholes. Different roads adapt to different speeds and steering wheel controls. Traditional built-in systems rely solely on cameras and built-in map data. Support does not meet the needs of self-driving very well

Method used

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  • Road condition sensing device and method and unmanned vehicle thereof
  • Road condition sensing device and method and unmanned vehicle thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0022] Embodiment 1: A road surface condition sensing device, the sensing device includes a wheel speed sensor, a vibration sensor and a signal processing unit, wherein the wheel speed sensor and the vibration sensor are connected to the signal processing unit through an electrical signal, and the signal The processing unit includes at least a central processing unit, a readable, writable and erasable memory chip, a temporary cache unit, and an output circuit. The result output.

Embodiment 2

[0023] Embodiment 2: A road surface condition sensing device, wherein the wheel speed sensor adopts a high-precision Hall-type ABS wheel speed sensor. The vibration sensor adopts one of a relative electric sensor, an eddy current sensor, an inductive sensor, a capacitive sensor, an inertial electric sensor, a piezoelectric acceleration sensor, a piezoelectric force sensor, and a resistive strain sensor. The structure and connection relationship of the remaining parts are the same as those described in Embodiment 1.

Embodiment 3

[0024] Embodiment 3: A kind of driverless car, this driverless car at least comprises steering wheel, master control system, engine, vehicle walking system, master control system includes automatic driving and manual driving two modes, in the vehicle of driverless car The walking system is equipped with a vibration sensor and a wheel speed sensor. The vibration sensor is located in the wheel. The signals of the vibration sensor and the wheel speed sensor are transmitted to the signal processing unit after passing through the signal amplification circuit and the filter circuit. After the signal processing unit processes the signal, the signal is processed. Feedback to the main control system of the driverless car, the main control system of the driverless car receives the signal and realizes avoidance by controlling the engine speed and the steering wheel.

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Abstract

The invention discloses a road condition sensing device and method and an unmanned vehicle thereof and belongs to the field of unmanned devices. The road condition sensing device is used for road sensing of the unmanned vehicle and comprises a wheel speed sensor, a vibration sensor and a signal processing unit, both the wheel speed sensor and the vibration sensor are connected with the signal processing unit by means of electric signals, the signal processing unit at least comprises a central processing unit, a readable and erasable storage chip, a temporary cache unit and output circuit, and the central processing unit is used for calling data in the storage chip and data in the temporary cache unit for comparison and outputting a result after comparison. According to the above technical scheme, information feedback of a road in unit time or interval time can be realized, and the road condition sensing device can be matched with a road information collection device of the unmanned vehicle to realize a main control system for automatic driving and traveling in complex road conditions.

Description

technical field [0001] The invention belongs to the field of unmanned driving devices, and in particular relates to a road condition sensing device and method and an unmanned vehicle thereof. Background technique [0002] With the improvement of the scientific level, unmanned vehicles are gradually showing a trend of growth and technology update. When the road conditions are good, unmanned vehicles can realize automatic driving through their own GPS, cameras and sensor radars, and through signal transmission The device realizes the exchange of information and commands with the remote control personnel. However, in the case of complex road conditions, unmanned vehicles still need to switch to manual driving mode to avoid dangerous situations. [0003] The road conditions include good asphalt and cement roads, as well as more complex gravel roads and potholes. Different roads adapt to different speeds and steering wheel controls. Traditional built-in systems rely solely on ca...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B60W40/06B60W30/182
CPCB60W30/182B60W40/06B60W2420/403
Inventor 许振飞许齐放张鹏周勇吴思进周宇宋宏斌王德民宋振宇
Owner 临沂高新区鸿图电子有限公司
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