Safety detection and alarm device and method for children left in automobile

Abstract

The invention discloses a safety detection and alarm device and method for children left in an automobile. The safety detection and alarm device comprises a processor, a human body infrared sensor, a temperature sensor, a sound sensor, an alarm and a wireless transmission module. The processor, the human body infrared sensor, the temperature sensor, the sound sensor and the wireless transmission module are arranged in the automobile, the human body infrared sensor, the temperature sensor and the sound sensor are all connected with the processor, the processor is connected with an ignition switch and a vehicle door closing detection unit, and the output end of the processor is connected with the input end of the wireless transmission module; the alarm is arranged outside the automobile, the input end of the alarm is connected with the output end of the processor, children and temperature in the vehicle are detected in multiple directions, the detection accuracy is improved, and an alarm can be generated in time to remind an automobile owner.

Description

technical field [0001] The invention belongs to the field of automobile safety, and relates to a safety detection and alarm device and method for a child left in an automobile. Background technique [0002] The popularity of family cars has brought convenience to people's travel, but it has also caused many safety problems. In recent years, safety accidents caused by young children stranded in cars have occurred frequently. The frequent occurrence and serious consequences of such accidents have attracted the attention of many scholars. The detection technologies mainly include: 1. Combining the pressure and temperature sensors on the seat to judge whether there are young children detained in the car, but the pressure sensor is easily disturbed by the pressure of objects in the car. 2. At present, most studies attribute the death of young children trapped in the car to "suffocation", and their technology mainly focuses on detecting and alarming by detecting the concentration...

AI Technical Summary

Problems solved by technology

However, studies have shown that when the ambient temperature is only 26.7°C, the temperature inside a car parked in direct sunlight can rise to 34.6°C, which makes people feel hot and uncomfortable, within 2 minutes, and it can reach more than 10 minutes. The human body temperature is 37.2°C. When the door is closed and the ambient temperature exceeds 36.8°C (98.2°F), there is a 75% probability that the temperature inside the car will increase to the maximum within 5 minutes and rise to 51°C to 67°C within 15 minutes. , and in the case of sun exposure, young children lose control of body temperature within 5 minutes and develop hyperthermia within 15 to 55 minutes

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