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

Wave radar system

A wave radar and radar front-end technology, applied in the field of frequency modulation continuous wave millimeter wave radar system, can solve problems such as high cost, different system architecture, complex system design, etc., and achieve the effect of reducing system cost and system complexity

Inactive Publication Date: 2015-10-21
WUHU LION AUTOMOTIVE TECH CO LTD
View PDF7 Cites 1 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

At present, the millimeter-wave radar systems developed by major manufacturers adopt different system architectures, high cost and complex system design.

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
  • Wave radar system
  • Wave radar system

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0015] Such as figure 1 Shown, radar system of the present invention comprises radar front-end module, DAC (frequency modulation signal generating circuit), intermediate frequency processing circuit and DSP minimum system composition, the function of each component and the connection relationship between each component are described in detail below as follows:

[0016] DSP minimum system includes DSP chip, OSC clock circuit, JTAG debugging circuit, FLASH, SRAM circuit, wherein OSC clock circuit, JTAG debugging circuit, FLASH, SRAM circuit are all connected with DSP, and DSP is also connected with CAN bus for communication with the whole vehicle Communication circuit, LED visual alarm circuit, BUZZER buzzer sound alarm circuit.

[0017] The DSP controls the 12-bit high-precision DAC digital-to-analog converter through the multi-channel buffered serial communication interface MCBSPB control circuit to generate a triangular wave modulation signal, which is filtered and amplified ...

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 wave radar system. The system comprises a radar front module, a DAC, a medium-frequency processing circuit and a DSP minimum system. The low-precision DAC and a filtering amplifying circuit are adopted to replace a high-precision DAC and a PLL phase-locked loop, etc. to achieve high-linearity frequency modulation signals. The DAC is controlled by the DSP and built-in multichannel serial communication interfaces cooperating with DMA. Additional MCUs required by the DAC are no longer required. The ADC arranged in the DSP is adopted as the analog-to-digital converter. Additional ADCs are not required. Meanwhile, a conventional DSP system SRAM cooperating with a DMA control module inside the DSP is adopted to replace an FIFO buffer realized by an FPGA or double-interface RAM and adopted by most of current systems. The system has the advantages that the system cost is lowered; and the system complexity is further alleviated.

Description

technical field [0001] The invention relates to the technical field of automobile active safety, in particular to a frequency modulation continuous wave millimeter wave radar (FMCW, Frequency Modulation Continuous Wave) system. Background technique [0002] Vehicle safety is getting more and more attention from consumers. Active safety technology plays an increasingly prominent role in vehicle safety. It can effectively prevent accidents. Millimeter wave radar technology is widely used in the detection of the surrounding environment of vehicles. In particular, the frequency-modulated continuous-wave millimeter-wave radar can detect the distance, speed and orientation of stationary and moving targets, so as to obtain information about the surrounding environment of the vehicle, and realize technologies such as frontal collision avoidance, rear blind spot detection, and lane change assistance. At present, the millimeter-wave radar systems developed by major manufacturers adopt...

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 Applications(China)
IPC IPC(8): G01S13/93G01S13/58
CPCG01S13/584G01S13/931G01S2013/93271
Inventor 王陆林刘贵如张世兵徐达学
Owner WUHU LION AUTOMOTIVE TECH CO LTD