Obstacle detection method, device and equipment based on radar and storage medium

A technology of obstacle detection and detection method, which is applied in measurement devices, radio wave measurement systems, reflection/re-radiation of radio waves, etc., can solve problems such as false alarms, and achieve the effect of eliminating influence and blocking interference.

Active Publication Date: 2019-05-28
厦门精益远达智能科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, if infrared sensors are used for detection, when fast-moving and small objects such as birds pass by or are blocked by a small amount of leaves, false alarms will occur frequently

Method used

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  • Obstacle detection method, device and equipment based on radar and storage medium
  • Obstacle detection method, device and equipment based on radar and storage medium
  • Obstacle detection method, device and equipment based on radar and storage medium

Examples

Experimental program
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no. 1 example

[0061] see figure 1 , the first embodiment of the present invention provides a radar-based obstacle detection method, which can be executed by the receiving radar, in particular, executed by one or more processors in the receiving radar, and at least includes the following steps:

[0062] S10. Receive a transmit signal currently sent by the transmit radar to obtain a receive signal.

[0063] In this embodiment, a transmitting radar for transmitting signals and a receiving radar for receiving transmitting signals sent by the transmitting radar are provided according to the principle of beam-to-shoot. The transmitting signal emitted by the transmitting radar is an electromagnetic wave with a fixed frequency (the frequency does not change all the time), and the frequency of the transmitting signal received by the receiving radar is the fixed frequency transmitted by the transmitting radar. Of course, it should be noted that both the transmitting radar and the receiving radar use...

no. 2 example

[0095] see figure 2 , an embodiment of the present invention provides a radar-based obstacle detection device, including:

[0096] The receiving unit 10 is configured to receive a transmit signal currently sent by the transmit radar to obtain a receive signal;

[0097] A frequency mixing unit 20, configured to mix the received signal with M local oscillator signals generated according to the frequency sweep, to generate corresponding M intermediate frequency signals;

[0098]A maximum amplitude acquisition unit 30, configured to obtain the corresponding M frequency spectra and the maximum amplitude of each frequency spectrum according to the M intermediate frequency signals;

[0099] A maximum value obtaining unit 40, configured to obtain the maximum value among the M maximum amplitude values;

[0100] The obstacle judging unit 50 is configured to judge whether an obstacle currently appears in the target space according to the maximum value, a reference value and a preset a...

no. 3 example

[0119] An embodiment of the present invention provides an obstacle detection device, including a processor, a memory, and a computer program stored in the memory and configured to be executed by the processor. When the processor executes the computer program, the above-mentioned The obstacle detection method based on the millimeter wave radar described in the embodiment.

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Abstract

The invention provides an obstacle detection method, device and equipment based on a radar and a storage medium. The method comprises the steps of receiving transmitting signals currently sent by thetransmitting radar to obtain receiving signals, conducting frequency mixing on the receiving signals and M local oscillation signals which are generated according to frequency sweeping respectively togenerate M corresponding intermediate frequency signals, and obtaining M corresponding frequency spectra and the maximal amplitude of each frequency spectrum according to the M intermediate frequencysignals; obtaining the maximal value in the M maximal amplitudes, and judging whether or not an obstacle currently exists in a target space according to the maximal value, a reference value and a preset attenuation factor, wherein the reference value is generated according to multiple maximal values at the predetermined historical moment. According to the obstacle detection method, device and equipment based on the radar and the storage medium, the millimeter-wave radar is adopted for detecting obstacles in an open space according to a correlation principle, and the obstacle detection method,device and equipment are high in response speed, accurate and efficient.

Description

technical field [0001] The present invention relates to the technical field of intelligent transportation, in particular to a radar-based obstacle detection method, device, equipment and storage medium. Background technique [0002] There are many special situations in real life, such as the prohibition of super-high vehicles on certain road sections, the prohibition of privately erecting or hoisting objects between two buildings, the prohibition of parking vehicles between two buildings, and the prohibition of planting tall trees between elevated lines Wait. For any of the above situations, it is necessary to accurately detect whether there is object occlusion between two objects in an open space. [0003] Problems existing in the prior art: [0004] The existing technical solutions mainly use infrared sensors for detection. Two infrared devices are placed at the same height at both ends of the road, one is used for transmitting and the other is used for receiving. If the...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01S13/93
Inventor 张谅赵铁刚
Owner 厦门精益远达智能科技有限公司
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