Personnel leaving detection system

A detection system and personnel technology, applied in the field of personnel legacy detection system, can solve problems such as low robustness, high hardware cost, and user privacy protection, and achieve high detection robustness, low hardware cost, and user privacy protection Effect

Active Publication Date: 2021-07-23
UNITED AUTOMOTIVE ELECTRONICS SYST
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0004] The purpose of the present invention is to provide a person leaving detection system to solve the problem of high hardware cost and robust The problem of low security and the inability to protect user privacy

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Embodiment Construction

[0028] In order to make the purpose, advantages and features of the present invention clearer, the present invention will be described in detail below in conjunction with the accompanying drawings and specific embodiments. It should be noted that the drawings are all in very simplified form and not drawn to scale, and are only used to facilitate and clearly assist the purpose of illustrating the embodiments of the present invention. In addition, the structures shown in the drawings are often a part of the actual structure. In particular, each drawing needs to display different emphases, and sometimes uses different scales. It should also be understood that, unless otherwise specified or pointed out, the terms “first”, “second”, “third” and other descriptions in the specification are only used to distinguish each component, element, step, etc. in the specification, rather than It is used to express the logical relationship or sequence relationship between various components, e...

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Abstract

The invention provides a personnel leaving detection system. The personnel leaving detection system comprises an ultra wide band main node and at least one ultra wide band auxiliary node which are arranged in a vehicle, wherein each ultra wide band auxiliary node is used for collecting channel impulse response (CIR) information generated by communication with the ultra wide band main node, and sending the CIR information to the ultra wide band main node; the ultra wide band main node is used for detecting whether a vehicle is flamed out and locked or not: if yes, initiating periodic ultra wide band broadcasting to establish communication with all the ultra wide band auxiliary nodes, and after CIR information sent by all the ultra wide band auxiliary nodes in the current broadcasting period is received, operating a personnel leaving detection algorithm to judge whether the personnel are left or not according to all the received CIR information. Due to the fact that the ultra-wideband signals are not easily affected by human body and environment shielding, and the ultra-wideband universal chip has a CIR information analysis function and does not need chip firmware refreshing, hardware cost is low, detection robustness is high, in addition, biological characteristic data collection does not need to be carried out, and user privacy is also protected.

Description

technical field [0001] The invention relates to the technical field of automobiles, in particular to a detection system for people left behind. Background technique [0002] It is reported that a considerable number of children are left in cars by drivers every year around the world and cause casualties. In order to improve vehicle safety, both Europe and North America require future vehicles to be equipped with Child Presence Detection (CPD). The existing methods of CPD are based on vision (visible light and infrared camera), based on rear seat / child seat pressure sensor, based on wireless radar (millimeter wave / Wifi, etc.). However, most methods require additional hardware, resulting in high hardware costs. Vision-based methods also suffer from robustness and user privacy protection issues. [0003] At present, Ultra Wideband (UWB for short) wireless communication technology has been applied. UWB uses nanosecond to microsecond non-sine wave narrow pulse to transmit data...

Claims

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Application Information

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IPC IPC(8): H04L25/02H04B17/30B60Q5/00B60Q1/52
CPCH04L25/0212H04B17/30B60Q1/52B60Q5/005
Inventor 毛友发项康泰林晨业陈枭雄
Owner UNITED AUTOMOTIVE ELECTRONICS SYST
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