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

Vehicle Radar Device and Reporting System

A vehicle-mounted radar device and radar wave technology, applied in traffic control systems, measuring devices, collision avoidance systems, etc. of road vehicles, can solve problems such as inability to distinguish

Active Publication Date: 2019-05-07
DENSO CORP
View PDF8 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

That is, there is a problem that the vehicle-mounted radar device cannot distinguish whether an object located directly on the side of the own vehicle is stopping or is a vehicle paralleling the same traveling speed as the own vehicle.

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
  • Vehicle Radar Device and Reporting System
  • Vehicle Radar Device and Reporting System
  • Vehicle Radar Device and Reporting System

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0019] below, with Figure 1 Embodiments of the present invention will be described first.

[0020] The vehicle alarm system 1 of this embodiment is mounted on a vehicle, such as figure 1 As shown, an alarm device 2 , a vehicle speed sensor 3 , and a radar device 4 are provided.

[0021] The alarm device 2 is an audio output device installed in the vehicle interior, and issues an alarm to the occupants of the vehicle.

[0022] The vehicle speed sensor 3 detects the traveling speed of a vehicle (hereinafter referred to as the own vehicle) on which the vehicle alarm system 1 is mounted.

[0023] The radar device 4 adopts a known two-frequency CW (Two-Frequency Continuous Wave) method, and includes a transmission circuit 11 , a transmission antenna 12 , a reception antenna 13 , a reception circuit 14 , and a signal processing unit 15 .

[0024] The transmission circuit 11 is a circuit that supplies a transmission signal Ss to the transmission antenna 12 , and includes an oscil...

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 radar device creates an intensity distribution for a plurality of observation points showing a correspondence relationship between a relative speed parameter related to the relative speed of the observation point and a reflection intensity parameter related to the reflection intensity of the radar wave reflected at the observation point. In addition, the radar apparatus decreases the reflection intensity parameter as the relative velocity parameter increases from the relative velocity parameter corresponding to the peak value of the reflection intensity, that is, the center relative velocity parameter, and reflects When the intensity parameter becomes smaller and the distribution of the reflection intensity parameter is symmetrical about the center relative to the velocity parameter, it is determined that a traveling vehicle is detected.

Description

technical field [0001] The present invention relates to an on-vehicle radar device and a reporting system for detecting objects present around a vehicle. Background technique [0002] Conventionally, an on-vehicle radar device is known that detects objects around a vehicle by irradiating radar waves as transmission waves at predetermined angles around the vehicle and receiving reflected waves (for example, refer to Patent Document 1). [0003] Patent Document 1: Japanese Patent Laid-Open No. 2010-43960 [0004] The radar device detects a velocity component in the direction towards the antenna surface. Therefore, when the on-vehicle radar device detects an object located directly on the side of the host vehicle, it determines that the relative speed of the object is zero. That is, there is a problem that the on-vehicle radar device cannot distinguish whether an object located directly on the side of the own vehicle is stopping or a vehicle running parallel to the own vehicl...

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): G01S13/536B60R21/00G01S13/60G08G1/16G01S13/931
CPCG01S13/536G01S7/415G08G1/052G08G1/165G08G1/166G01S13/931G01S2013/93274G01S2013/93272G01S2013/932G01S13/583
Inventor 佐藤干三宅康之
Owner DENSO CORP