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Method and system for detecting child left in vehicle

A detection method and detection system technology, applied in the field of detection of leftover children in vehicles, can solve problems such as missed detection and false detection of detection methods

Active Publication Date: 2021-10-22
ZHENGZHOU YUTONG BUS CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] The purpose of this application is to provide a method and system for detecting children left in the car to solve the problem of false detection in existing detection methods; There are problems of false detection and missed detection in the method; at the same time, a method and system for detecting children left in the car are proposed to solve the problems of false detection and missed detection in the existing detection methods

Method used

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  • Method and system for detecting child left in vehicle
  • Method and system for detecting child left in vehicle
  • Method and system for detecting child left in vehicle

Examples

Experimental program
Comparison scheme
Effect test

Embodiment approach 1

[0061] Example of the detection system for children left in the car:

[0062] The main idea of ​​the present invention is that in order to fully realize the detection of children left in the car, the detection area of ​​the millimeter-wave radar should cover the range of personnel activities set in the compartment space of the car, and in advance, it must The position in and the detection area of ​​the millimeter-wave radar are used to calibrate the detection area of ​​the millimeter-wave radar. For the problem that the detection area deviates and is easy to be misdetected due to the loosening of the millimeter-wave radar, the present invention re-calibrates the detection area according to the deviation angle of the millimeter-wave radar, vehicle model information, and the position of the millimeter-wave radar in the compartment after the millimeter-wave radar is loose. , to ensure that the detection area is inside the vehicle to avoid false detection by people outside the veh...

Embodiment approach 2

[0091] Example of the detection system for children left in the car:

[0092] The difference in structure between the left-behind child detection system in the vehicle and the left-behind child detection system in the first embodiment is that the detection attitude adjustment mechanism of the millimeter-wave radar 1 is added, and the main purpose is to adjust the angle deviation When the amount is not within the threshold range, the angle deviation of the detection attitude of the millimeter-wave radar 1 is adjusted to be within the threshold range, which can avoid the situation of missed detection when the angle deviation is not within the threshold range, and more effectively improve the detection efficiency. accuracy.

[0093] Specifically, the adjustment structure is as follows Figure 5 The two-degree-of-freedom rotation adjustment mechanism shown is connected to the control output end of the control device 2, and is controlled by the control device 2. The two-degree-of-...

Embodiment approach 3

[0110] Example of the detection system for children left in the car:

[0111] The system for detecting children left in the vehicle in this embodiment is the same in structure as the system for detecting children left in the vehicle in Embodiment 2, the difference lies in the setting of the threshold range in the method for detecting children left in the vehicle.

[0112] If the adjustment range of the two-degree-of-freedom rotary adjustment mechanism is too small, and the angle deviation is too large, that is, the millimeter-wave radar 1 is very loose, even if the adjustment mechanism adjusts the millimeter-wave radar 1 with the maximum range, the millimeter-wave radar 1 cannot be adjusted. The detection area of ​​the radar 1 returns to the range of personnel activities set in the covered compartment space, resulting in missed detection. Therefore, the method for detecting children left in the car of the present embodiment is as follows: Figure 7 As shown, the angle deviatio...

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Abstract

The invention relates to a method and system for detecting children left in a car, and belongs to the technical field of car safety prevention and control. The detection method comprises the following steps: acquiring vehicle attitude information in a stop state and attitude information of a detector, and obtaining an angle deviation value; judging whether the angle deviation value is within a threshold range or not, if not, adjusting the detection posture of the detector by an adjusting mechanism of the detector according to the angle deviation value to enable the angle deviation value to be within the threshold range, updating the angle deviation value, and determining the position of the carriage in the detection coordinate system according to the angle deviation value, the vehicle length, the vehicle width and the position of the carriage relative to the detector; calibrating a detection area of the detector; if yes, directly recalibrating the detection area; and performing detection in the detection area. When the angle deviation value is within the threshold range, the detection area of the detector is calibrated again, and false detection is avoided; and when the angle deviation value is not within the threshold range, the detection posture of the detector is adjusted through an adjusting mechanism of the detector, and missing detection is avoided.

Description

technical field [0001] The invention relates to a method and system for detecting children left in a vehicle, belonging to the technical field of vehicle safety prevention and control. Background technique [0002] With the development of economy and technology, the number of private cars continues to increase. Many parents have a weak sense of safety. When traveling with children, they sometimes leave their children alone in the car for convenience. Leaving it in a closed car for a long time will lead to hypoxia or high temperature suffocation, especially in summer, when the car is turned off and the air conditioner is turned off in hot weather, the temperature inside the car can rise in a short time, causing children to be overheated and suffocated to death, etc. event. [0003] In addition, because kindergartens and primary schools are far away from home, many parents choose to let their children take the school bus to and from home because of the conflict between their ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01S13/88G01S7/02G01V8/10G08B21/02
CPCG01S13/886G01S7/02G01V8/10G08B21/02Y02T10/40
Inventor 陈相显王士军张莎莎孙明英常培玉赵东峰
Owner ZHENGZHOU YUTONG BUS CO LTD
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