According to the vehicle-mounted anti-retention alarm device, a professional technician does not need to connect the device with a vehicle body, the construction problem is solved, the principle is that whether the environment in the vehicle threatens the safety of people or not is judged by means of three sensors including the temperature sensor, the oxygen concentration sensor and the carbon monoxide concentration sensor, and an accurate application scene is provided for follow-up work; meanwhile, the microwave detection distance is set, the microwave detection area is stipulated to be an internal space below a vehicle window by adjusting the angle of the microwave detector, 99% of vehicle windows on the market at present have a metal shell, microwaves cannot penetrate through the vehicle windows, and therefore interference of objects outside a vehicle is avoided, and the detection accuracy is guaranteed; whether a movable object exists in a vehicle or not is judged by utilizing thepenetrability and Doppler effect of microwaves on a non-metal object, and an alarm is given after it is detected that the object in the vehicle reaches the specific moving frequency within the specific time after the object moves for the first time, so that false alarm is avoided; meanwhile, the opening and closing of the vehicle door are judged through the central controller by utilizing a reflected wave signal of the microwave or a signal detected by the ZigBee vehicle door sensor gateway system; and the central controller module determines whether to start or not to start an alarm program by judging the rise or fall of the received signals of the trend temperature, the trend oxygen concentration or the trend carbon monoxide concentration within a specific time.
一种车载防滞留警报装置,本装置无需专业技师对本装置和车体进行连接,解决了施工问题,其原理为借助温度、氧气浓度和一氧化碳浓度三个传感器判断车内的环境是否对人的安全产生威胁,为后续工作提供准确的应用场景,同时设置好微波探测距离,通过调整微波探测器的角度规定微波探测区域为车窗以下的内部空间,结合目前市面99%的汽车车窗以下为金属外壳,微波无法穿透,故而不受车外物体的干扰,保证了探测的精准性,利用微波对非金属物体的穿透性及多普勒效应判断车内是否有可移动物体,探测到车内有物体第一次移动后的特定时间内达到了特定的移动次数后报警,避免了误报警,同时利用微波的反射波信号或ZigBee车门传感器网关系统所检测信号经中央控制器判断车门的打开与关闭,特定时间内中央控制器模块通过判断收到趋势温度、趋势氧气浓度或趋势一氧化碳浓度的信号的上升或下降决定启动或不启动报警程序。
Vehicle-mounted anti-retention alarm device
一种车载防滞留警报装置
2020-11-03
Patent
Electronic Resource
Chinese
IPC: | G08B SIGNALLING OR CALLING SYSTEMS , Signalisier- oder Rufsysteme / B60Q ARRANGEMENT OF SIGNALLING OR LIGHTING DEVICES, THE MOUNTING OR SUPPORTING THEREOF OR CIRCUITS THEREFOR, FOR VEHICLES IN GENERAL , Anordnung von Signal- oder Beleuchtungsvorrichtungen, deren Einbau oder Halterung oder deren Schaltkreise bei Fahrzeugen allgemein / G01K MEASURING TEMPERATURE , Messen der Temperatur / G01N Untersuchen oder Analysieren von Stoffen durch Bestimmen ihrer chemischen oder physikalischen Eigenschaften , INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES / G01V Geophysik , GEOPHYSICS / H04W WIRELESS COMMUNICATION NETWORKS , Drahtlose Kommunikationsnetze |
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