Method and apparatus based on radar for preventing collision while passing under a bridge

A technology of anti-collision device and radar, which is applied in the direction of measuring device, anti-collision system, radio wave reflection/re-radiation, etc., can solve the problem of large error in bridge height, and achieve the effects of avoiding loss, reliable detection method and simple implementation

Active Publication Date: 2015-11-11
FORYOU GENERAL ELECTRONICS
View PDF5 Cites 24 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The present invention provides a radar-based bridge traffic anti-collision method and device, aiming to solve the problem of large error in human subj

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • Method and apparatus based on radar for preventing collision while passing under a bridge
  • Method and apparatus based on radar for preventing collision while passing under a bridge
  • Method and apparatus based on radar for preventing collision while passing under a bridge

Examples

Experimental program
Comparison scheme
Effect test

Example Embodiment

[0050] The following describes the implementation of the present invention in detail with reference to the accompanying drawings. The accompanying drawings are for reference and explanation purposes only, and do not constitute a limitation on the scope of protection of the patent of the present invention.

[0051] On the one hand, the embodiments of the present invention provide a radar-based bridge traffic collision avoidance method, including:

[0052] S10. Control the radar to launch the detection beam for the first time and receive the reflected beam, and calculate the linear distance L1 between the radar and the bridge.

[0053] Since the propagation speed of radar waves is close to the speed of light C (300,000 kilometers per second), the distance between the transmission and reception of radar waves is negligible, so it can be considered that the transmission and reception of radar are done at the same point. Suppose the time when the radar is first launched is T11, and the ti...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to view more

PUM

No PUM Login to view more

Abstract

The invention discloses a method and apparatus based on a radar for preventing collision while passing under a bridge. The method includes: controlling the radar to emit a detection beam for the first time and receives a reflection beam, calculating a linear distance L1 between the radar and the bridge; at the same time as the radar emits the detection beam for the first time, acquiring a real-time velocity V(t) of a vehicle; after a preset time interval [delta] T, controlling the radar emits a detection beam for the second time and receives the reflection beam, and calculating a linear distance L2 between the radar and the bridge at the moment; calculating a driving distance Ld of the vehicle; calculating a height H between the bridge and the pavement; comparing the height H of the bridge and the height Hv of the vehicle, and if Hv is equal to or greater than H, sending an alert. The embodiments of the invention allow an automatic assessment of the height limit of the bridge and can prevent errors due to subjective judgment of a person, and is easy to implement and high in reliability.

Description

technical field [0001] The invention relates to the technical field of automobile auxiliary driving, in particular to a radar-based bridge traffic collision avoidance method and device. Background technique [0002] At present, there are bridges that intersect with it on most roads, and these bridges have a certain height limit. When the total height of the car, especially the truck, is greater than the height limit of the bridge, a bridge collision accident will be sent to the driver and the driver. Loss of public property and even serious traffic accidents. Moreover, some bridges do not have height limit signs, and the driver's subjective judgment based on visual inspection will inevitably lead to errors, resulting in inaccurate judgments and accidents. Therefore, it is necessary to propose a bridge traffic anti-collision method and device to prevent accidents. Contents of the invention [0003] The invention provides a radar-based bridge traffic anti-collision method ...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to view more

Application Information

Patent Timeline
no application Login to view more
IPC IPC(8): G08G1/16G01S13/93
Inventor 张建强
Owner FORYOU GENERAL ELECTRONICS
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Try Eureka
PatSnap group products

Browse by: Latest US Patents, China's latest patents, Technical Efficacy Thesaurus, Application Domain, Technology Topic.

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap