Unlock instant, AI-driven research and patent intelligence for your innovation.

Pedestrian warning sound warning distance test device and test method

A pedestrian warning and testing device technology, applied in measurement devices, radio wave measurement systems, instruments, etc., to achieve the effects of strong practicability, accuracy, and improved testing efficiency

Active Publication Date: 2021-05-25
JILIN UNIV
View PDF10 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] The purpose of the present invention is to solve the existing pedestrian warning sound. The purpose of the present invention is to provide a pedestrian warning sound warning distance test device and testing method, which can test the warning distance of multiple background noise environments in one test site.

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
  • Pedestrian warning sound warning distance test device and test method
  • Pedestrian warning sound warning distance test device and test method
  • Pedestrian warning sound warning distance test device and test method

Examples

Experimental program
Comparison scheme
Effect test

specific Embodiment approach 1

[0017] Specific implementation mode 1. Combination Figure 1 to Figure 4 Description of this embodiment, the pedestrian warning sound warning distance test device includes an infrared laser receiving sensor 1 and an infrared laser emitting device 2 for capturing the time when the vehicle enters the line, a wireless signal receiving sensor 3 for capturing the warning time, and a wireless signal transmitting remote control Device 4, an acoustic sensor 5 for collecting noise data, capable of recording changes in the frequency and amplitude of pedestrian warning sounds at the position of the tester during the entire test process, and a vehicle speed sensor 6 for monitoring vehicle speed information, used for synchronously recording all channel information The data acquisition device 7 also includes a loudspeaker 8 for playing the sound of the background noise environment, which can complete the test of the warning distance of the pedestrian warning sound in different background noi...

specific Embodiment approach 2

[0018] Specific embodiment two, combine Figure 1 to Figure 4 Describe this embodiment. This embodiment is a method for testing the pedestrian warning sound warning distance test device described in the first specific embodiment, mainly including the test site preparation step, the test sensor and equipment preparation step, the data collection step, and the warning distance calculation. step.

[0019] 1. Test site preparation: In a quiet and open test site with a horizontal and smooth asphalt road, build a two-lane long straight area with a length of at least 30m and a width of about 10m to simulate the actual driving road.

[0020] 2. Test sensors and equipment preparation; the vehicle is at the far right end of the road, and the tester stands facing the left side of the road, covers his eyes with an eye mask, and is equipped with a wireless signal transmitter remote control device 4 . Acoustic sensor 5 and loudspeaker 8 are arranged on the left side of the tester, and the ...

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 pedestrian warning sound warning distance testing device and testing method relate to the technical field of pedestrian warning sound warning effect testing of electric vehicles and hybrid vehicles. The invention can perform warning distance tests in multiple background noise environments in one test site. Including infrared laser receiving sensor and infrared laser emitting device, wireless signal receiving sensor and wireless signal transmitting remote control device, acoustic sensor, used to synchronously collect data of wireless signal receiving sensor information, acoustic sensor information, vehicle speed sensor information and infrared laser receiving sensor information Acquisition equipment, infrared laser receiving sensors and infrared laser emitting devices are installed at one end of the test site and on both sides of the front of the vehicle. The tester is located at the other end of the test site. Acoustic sensors and speakers are installed on the side of the tester. The remote control device for signal transmission; the distance between the infrared laser receiving sensor and the tester is the distance of the vehicle incoming line.

Description

technical field [0001] The invention relates to the technical field of pedestrian warning sound warning effect testing for electric vehicles and hybrid vehicles, in particular to a pedestrian warning sound warning distance testing device and a testing method. Background technique [0002] With environmental pollution, energy crisis and other issues becoming more and more prominent, new energy vehicle technology is getting more and more attention. Various car companies have launched electric vehicles (Electric Vehicle, EV) and hybrid electric vehicles (Hybrid Electric Vehicle, HEV) products, which have become the automotive industry. Current research hotspots and future development directions of the industry. [0003] When an EV or HEV in pure electric mode runs at a speed of 0-30km / h, since there is no engine (the HEV engine does not work), the noise level outside the car is much lower than that of a traditional car under the same working conditions Level. In this case, th...

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
Patent Type & Authority Patents(China)
IPC IPC(8): G01S11/14
CPCG01S11/14
Inventor 王登峰曹蕴涛
Owner JILIN UNIV