The invention discloses an
alarm device, and relates to a vehicle child retention
alarm device. The device is an
alarm device for preventing a child from being retained in a vehicle so as not to cause a safety accident by using a photoelectric technology. The device comprises a detection device for
signal acquisition and detection, a
central processing unit and an execution device, wherein the detection device and the execution device are connected with the
central processing unit through circuits respectively; the detection device comprises a
photoelectric sensor, a
temperature induction meter and a
gas detector; the execution device comprises a
wireless signal emitter, an illuminator, a sounder and a ventilation
system controller; detected signals are transmitted to the
central processing unit through the circuits by the
photoelectric sensor, the
temperature induction meter and the
gas detector; after the received signals are processed by the central
processing unit, and an alarm instruction is emitted to the
wireless signal emitter, the illuminator and the sounder respectively and a ventilation equipment starting instruction is emitted to the ventilation
system controller; the
wireless signal emitter is used for emitting a wireless
alarm signal to a
mobile phone; and an original warning lamp is turned on by the illuminator, alarm sound is emitted by the sounder, and an original vehicle
air conditioning ventilation
system and an original vehicle window lifting system are turned on by the ventilation
system controller respectively. The alarm device has the advantages of no special requirements on an implemented vehicle, convenience in use and capabilities of completely solving the problem of no protection measure for personal safety of the child in the vehicle after parking of the vehicle, displaying technical parameters, facilitating parameter adjustment, amending settings and realizing various functions.