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An Obstacle Recognition Method Based on Pressure Sensor

A pressure sensor and obstacle recognition technology, applied in the field of unmanned driving, can solve problems such as driving hazards and obstacles that cannot be detected

Active Publication Date: 2022-04-01
的卢技术有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] At present, it can solve the recognition and decision-making within the range of appearance, such as detecting obstacles through sensors for avoidance, but cannot detect objects inside obstacles
But when there is a big rock or even a person inside a cardboard box, the sensor will detect a cardboard box after fusion. Although it will remind you that it is a box, the driver may choose to press it based on experience, which will cause driving hazards.

Method used

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  • An Obstacle Recognition Method Based on Pressure Sensor
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  • An Obstacle Recognition Method Based on Pressure Sensor

Examples

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Embodiment 1

[0026] Refer figure 1 The schematic, the present example proposes a holistic flow schematic of a barrier recognition method based on a pressure sensor, in this embodiment, in this embodiment, the value of the pressure sensor is introduced into the vehicle control, and does not improve the pressure sensor itself, which belongs to a multi-sensor Fusion algorithm section. At present, the existing technology has the following difficulties: one is the material of the object type, currently by visually identifying the algorithm of the object, but requires a lot of data sets to ensure that the object identification can constantly improve accuracy, but the object material is still more Good way. For example, the identification of the paper box can reach more than 99%, but the paper box is thin, which is a structured or compressed molding, which is currently unable to complete the identification through visual. The second is to identify the true and false objects of the object, in the visu...

Embodiment 2

[0063] Refer figure 2 The schematic is illustrated for the present embodiment to propose an obstacle recognition system based on a pressure sensor. The method can be implemented in the system, the system includes a visual detecting module 100, an ultrasonic detecting module 200, a central control module 300, a pressure detection module 400 and brake control module 500; specifically, in, the visual detecting module 100 and the ultrasonic detection module 200 are disposed in the vehicle body, and the vehicle body is used to detect whether the obstacle is present in front of the vehicle; the pressure detecting module 400 is disposed in the vehicle body for acquiring collision pressure data. The central control module 300 of the vehicle is connected to the visual detection module 100, the ultrasonic detection module 200, the pressure detecting module 400, and the brake control module 500 for receiving uploaded obstacle data and pressure data, and can be controlled to the brake control...

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Abstract

The invention discloses an obstacle identification method and system based on a pressure sensor, which comprises the following steps: using vision and ultrasonic data fusion to confirm whether there is an obstacle in front; identifying the object type of the obstacle; matching the corresponding object type according to the object type When the vehicle comes into contact with the obstacle, the pressure sensor returns to the current pressure value P2; judging that when the pressure value P2>P1, emergency braking is performed to stop. Beneficial effects of the present invention: by fusing the data of the pressure sensor to detect the tire pressure change when driving at low speed and hitting an obstacle, the algorithm decision is made, and finally the vehicle is controlled to continue driving or to brake, so as to avoid the occurrence of children hiding in cardboard boxes The situation of being crushed in the car occurs, which improves the safety of automatic driving.

Description

Technical field [0001] The present invention relates to the field of unhaly driving, and more particularly to a system based on a pressure sensor low-speed through an obstacle and a system based on a pressure sensor at low speed through an obstacle. Background technique [0002] In recent years, driving cars is also known as unmanned cars, computer driving cars, or wheeled mobile robots, is a smart car that implements unharvised in the computer system. Automobile automatic driving technology includes video camera, radar sensors, and laser range finders to understand the surrounding traffic conditions, and navigate the front road through a detailed map. All of this is implemented through Google's data center, and Google's data center can handle a lot of information about surrounding terrain. In this regard, the automatic driving car is equivalent to the remote control car or smart car of Google Data Center. One of the applications of automobile automatic driving technology Interne...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B60W30/09B60W30/095
CPCB60W30/09B60W30/0956B60W2420/54B60W2420/403
Inventor 张晋
Owner 的卢技术有限公司