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Radar-based people counting method and device, equipment and storage medium

A technology of people counting and radar data, applied in the computer field, it can solve the problems of restricting popularization, being easily affected by strong light, and the detection principle of limited performance, and achieving the effect of reducing the accuracy and improving the safety.

Pending Publication Date: 2021-08-27
SHENZHEN UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Passive infrared detectors (Passive Infrared Detectors, PIR) are widely used in many scenarios, but their performance is limited by their detection principle (based on the detection of human body infrared temperature); active infrared detection is mainly based on infrared thermal imaging, based on its The target detection algorithm is the same as that of machine vision, which can protect privacy and security to a certain extent (only outlines are presented), but the cost and power consumption of thermal imaging sensors are high, and they are easily affected by strong light
In addition, the required computing and storage resources are almost the same as those based on optical cameras, which also restricts its popularization in daily life applications to a certain extent.

Method used

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  • Radar-based people counting method and device, equipment and storage medium
  • Radar-based people counting method and device, equipment and storage medium
  • Radar-based people counting method and device, equipment and storage medium

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Embodiment 1

[0025] figure 1 It is a flow chart of a method for counting people based on radar provided by Embodiment 1 of the present invention. This embodiment is applicable to the situation where the number of people in the room is counted by radar. Statistical means can be implemented by means of software and / or hardware. see figure 1 , the radar-based people counting method provided in this embodiment includes:

[0026] Step 110, acquiring first radar data of a first preset number of frames and second radar data of a second preset number of frames; wherein, the first preset number of frames is greater than the second preset number of frames.

[0027] The radar data is the pulse wave of a certain frequency sent out by the radar, which is reflected back if it encounters a target, and the data obtained after processing such as analog-to-digital conversion.

[0028] Obtaining the first radar data of the first preset frame number can be to store the successively acquired radar data into...

Embodiment 2

[0064] figure 2 It is a flow chart of a radar-based people counting method provided by Embodiment 2 of the present invention. This technical solution is aimed at determining the category of the people counting model based on the first radar data characteristics of the first radar data and the preset decision model The previous process is supplemented. Compared with the above-mentioned solution, this solution is specifically optimized as, before determining the category of the people counting model according to the first radar data characteristics of the first radar data and the preset decision model, it also includes:

[0065] Extracting the first radar data features of the first radar data; wherein, the first radar data features include time-averaged active region features, time-accumulated frame energy features, and average-accumulated connected region features. Specifically, the flow chart of the radar-based people counting method is as follows figure 2 Shown:

[0066]...

Embodiment 3

[0087] image 3 It is a schematic structural diagram of a radar-based people counting device provided by Embodiment 3 of the present invention. The device can be realized by hardware and / or software, can execute a radar-based people counting method provided by any embodiment of the present invention, and has corresponding functional modules and beneficial effects for executing the method. like image 3 As shown, the device includes:

[0088] A radar data acquisition module 310, configured to acquire first radar data of a first preset number of frames and second radar data of a second preset number of frames; wherein, the first preset number of frames is greater than the second preset number of frames frame number;

[0089] The decision model category determination module 320 is configured to determine the category of the people statistics model according to the first radar data features of the first radar data and the preset decision model; wherein the category of the peopl...

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Abstract

The embodiment of the invention discloses a radar-based people counting method and device, equipment and a storage medium. The method comprises the following steps: acquiring first radar data of a first preset frame number and second radar data of a second preset frame number, wherein the first preset frame number is greater than the second preset frame number; determining the category of a people counting model according to first radar data features of the first radar data and a preset judgment model, wherein the category of the people counting model comprises a static people counting model and a moving people counting model; and determining a people counting result according to the category of the people counting model and second radar data features of the second radar data. By running the technical scheme provided by the embodiment of the invention, the problems of low safety, high statistical difficulty, low accuracy, high statistical cost and the like in the existing people counting can be solved, and the effects of improving the people counting safety and accuracy and reducing the people counting difficulty and cost are achieved.

Description

technical field [0001] Embodiments of the present invention relate to computer technology, and in particular to a radar-based people counting method, device, equipment, and storage medium. Background technique [0002] With the development of technologies such as the Internet of Things and 5G, smart buildings, smart homes, and smart security are also developing rapidly. For the above aspects, the number of people in the area of ​​interest is a very important type of basic data information. This type of information can be applied to abnormal crowd monitoring, regional security, public resource scheduling, etc. [0003] There are three common methods in the area-based detection methods for existing people counting. One is the statistical method of human target based on the machine vision related region of interest (Interest of Region, IOR). This type of method can be well applied in public scenes, but for some personally customized or private spaces (living room, toilet, me...

Claims

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Application Information

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IPC IPC(8): G06K9/62G06K9/46G01S13/88G01S7/41
CPCG01S13/88G01S7/41G06V10/462G06F18/24
Inventor 阳召成鲍润晗漆光皓
Owner SHENZHEN UNIV