A kind of alarming device for automobile anti-theft
Technical field
The utility model relates to warning, particularly a kind of alarming device for automobile anti-theft.
Background technology
Along with automobile enters common people's huge numbers of families, automobile burglar has become a necessary problem, how to make to prevent that automobile from being stolen by the people, in time the stealthy activity that takes place is reported to the police timely, and what become is more and more important.
Vehicle alarm against theft kind in the market is numerous and diverse, basically all be simple single-wire drive, have vehicle body control unit (BCM) direct drive loudspeaker to report to the police, type of alarm is single, in addition, loudspeaker are arranged in preceding storehouse basically, and the position that vehicle body control unit is arranged if connect by simple wire harness, certainly will need very long wire harness to come independent line just passable generally in car, structure is not compact, and increases cost.
How the antitheft alarm system of said structure when the car stealer cuts off power lead, makes loudspeaker can also arrive anti-theft alarm function, is the prior art technical issues that need to address.
The utility model content
Technical problem to be solved in the utility model is at the deficiencies in the prior art, and a kind of compact conformation, alarming device for automobile anti-theft that anti-theft feature is strong are provided.
For solving the problems of the technologies described above, the technical solution of the utility model is, a kind of alarming device for automobile anti-theft, the control power circuit, loud speaker, the controller that comprise housing, are connected with power supply is characterized in that: described controller is connected with car body controller by transceiver, automobile bus; Described transceiver is used to receive the alarm message from car body controller.
A kind of alarming device for automobile anti-theft, described transceiver is connected with automobile bus by a lead.
A kind of alarming device for automobile anti-theft, described power supply be connected with the backup power that is connected with loud speaker by amplifying circuit with controller respectively.
Alarming device for automobile anti-theft, owing to adopt said structure, controller is connected with car body controller by transceiver, automobile bus; Compare with prior art: by the automobile bus in the shared car, a direct lead just is put into various information in the system, saved arrangement space, make structure more compact, reduced cost, and, on warning device, increase backup power, prevented that also the car stealer from coming the thought of car steathily by cutting off the warning device power lead.Increased the car load anti-theft feature.
Description of drawings
Below in conjunction with the drawings and specific embodiments the utility model is described in further detail;
Fig. 1 is the utility model alarming device for automobile anti-theft external cabling scheme drawing;
Fig. 2 is a warning device structured flowchart shown in Figure 1;
In Fig. 1, Fig. 2,1, warning device; 2, automobile bus; 3, power supply; 4, car body controller; 5, transceiver; 6, controller; 7, control power circuit; 8, amplifying circuit; 9, loud speaker; 10, backup power.
The specific embodiment
As shown in Figure 1 and Figure 2, a kind of alarming device for automobile anti-theft comprises that the 12V storage battery gives car body controller 4 power supplies on housing, the automobile, and the power output end of car body controller 4 is connected with ground with warning device 1 power supply 3 with ground.The control power circuit 7 that is connected with power supply 3, control power circuit 7 provide 5V power supply to transceiver 5, controller 6, amplifying circuit 8 respectively.Described controller 6 is connected with car body controller 4 by transceiver 5, automobile bus 2; Transceiver 5 is connected with automobile bus 2 by a lead.Antitheft alarm system receives car body controller 4 alarm messages, realize communication by automobile bus 2 and car body controller 4, transceiver 5, be used to receive alarm message from car body controller 4, come filter analysis by controller 4, if be confirmed to be alarm message, that amplifies control signal through amplifying circuit 8 after, direct drive loud speaker 9 output alarms, prompting has the people to invade.
Power supply 3 be connected with the backup power 10 that is connected with loud speaker 9 by amplifying circuit 8 with controller 6 respectively.Under the usual state, the 12V power supply of storage battery is in to backup power 10 electrically-charged states always, and, controller 6 detects the 5V power supply status always, when people's attempt is stolen vehicle by cutting off warning device 1 with car body controller 4 lines, controller 6 will make antitheft alarm system 1 continue to report to the police by the electric power that uses backup power 10, continue 10 cycles of reporting to the police, one-period is 28S, two all period interval 2S.The time the longest that this backup power 10 can be kept warning is 45 minutes.