In-vehicle personnel leaving detection and alarm system and method

Abstract

The invention belongs to the field of personnel leaving detection, and provides an in-vehicle personnel leaving detection and alarm system and method. The in-vehicle personnel leaving detection and alarm system comprises a processor, a radar detection module and an infrared detection module, the radar detection module is used for transmitting an intermediate frequency signal into the vehicle, receiving a reflection signal reflected by an object in the vehicle, comparing the reflection signal with a pre-stored reflection signal of no living body in the vehicle, judging whether the reflection signal is consistent with the reflection signal, and if yes, judging that no person is left in the vehicle; if not, sending a detection starting request to an infrared detection module; the infrared detection module is used for receiving the detection starting request, detecting infrared information of all objects in the vehicle and transmitting the infrared information to a processor; and the processor is used for judging whether missing persons exist in the vehicle or not according to the difference between the human body infrared information and the background infrared information, and outputting alarm information if the missing persons exist in the vehicle.

Description

technical field [0001] The invention belongs to the field of detection of people left behind, in particular to a system and method for detection and alarm of people left in a vehicle. Background technique [0002] The statements in this section merely provide background information related to the present invention and do not necessarily constitute prior art. [0003] Along with children being left in the car and cause the frequent occurrence of death phenomenon, especially in hot summer or cold winter, the phenomenon that the child locked in the car is very likely to be smothered to death by heat, thereby causes family tragedy. These tragedies are not necessarily caused by the deliberate negligence of the parents or the drivers who lead the children. Sometimes the parents take the children out and the children fall asleep in the car. The busy parents are busy with their own work and forget that the children are still alive. Sleeping in the car and locking the door will caus...

AI Technical Summary

Problems solved by technology

[0003] With the frequent occurrence of children being left in the car, especially in the hot summer or cold winter, children locked in the car are likely to be suffocated to death by heat and suffocation, thus causing family tragedies

These tragedies are not necessarily caused by the deliberate negligence of the parents or the drivers who lead the children. Sometimes the parents take the children out and the children fall asleep in the car. The busy parents are busy with their own work and forget that the children are still alive. Sleeping in the car and locking the door will cause great harm Over the years, there have been many accidents in which children were forgotten by their parents in the car and the temperature inside the car increased rapidly as the car stopped. , especially in the hot summer, indoors are irradiated by high temperature and harmful gas accumulates. Once a child is forgotten in the car, they do not have a certain awareness and behavioral ability to execute the alarm and seek help, so personal safety injuries are extremely prone to occur

[0004] The inventors have found that the existing occupant detection system in the vehicle has the following problems: the existing omission detection system and method are easily blocked by equipment such as seats in the vehicle, and there may be dead spots in the detection, thereby reducing the accuracy of only omission detection. sex

Images