CN203318356U

CN203318356U - False-thunder-alarming-free automobile anti-theft alarm system based on signal processing

Info

Publication number: CN203318356U
Application number: CN2013202994991U
Authority: CN
Inventors: 赵振兵; 高青鹤; 杨宏宇
Original assignee: North China Electric Power University
Current assignee: North China Electric Power University
Priority date: 2013-05-28
Filing date: 2013-05-28
Publication date: 2013-12-04
Anticipated expiration: 2023-05-28

Abstract

The utility model discloses a false-thunder-alarming-free automobile anti-theft alarm system based on signal processing in the technical field of automobile anti-theft alarming. According to the technical scheme, the system comprises a thunder detecting module, a vibration detecting module, an infrared sensor module, a logical judging module, a controller and an automobile loudspeaker. The thunder detecting module, the vibration detecting module, the infrared sensor module and the controller are respectively connected with the logical judging module. The controller is respectively connected with the infrared sensor module and the automobile loudspeaker. The system has the advantage that false thunder alarming can be prevented under the condition that the automobile anti-theft alarm system keeps good sensitivity.

Description

That based on signal, processes reports automotive anti-theft alarming system by mistake without thunder

Technical field

The utility model belongs to the automobile anti-theft alarm technical field, relate in particular to a kind of based on signal, process without thunder wrong report automotive anti-theft alarming system.

Background technology

At present, car alarm mostly adopts vibration sensor to report to the police, and transducer sensitivity is established low, can not be effectively antitheft, and sensitivity is established high, slightly has vibration to report to the police.While thundering weather, car alarm is mad makes more than situation of common occurrence, near especially resident's rest having a strong impact on night.The automobile that dwelling district is parked often suffers the complaint of resident family due to the wrong report at night, even by angry resident, is destroyed.In light of this situation, some local government prohibites the automobile at night alarm for opening that is parked in community, makes annunciator become ornaments.The traditional alert device is due to the problem that is difficult to take into account sensitivity and wrong report, thereby very difficult solution is antitheft and the contradiction of wrong report.

Summary of the invention

Be difficult to take into account the problem of sensitivity and wrong report for the current car alarm of mentioning in background technology, the utility model proposes a kind of based on signal, process without thunder wrong report automotive anti-theft alarming system.

A kind of based on signal, process without thunder wrong report automotive anti-theft alarming system, it is characterized in that, described system comprises thunder detection module, vibration detection module, infrared sensor module, logic judgment module, controller and horn trumpet;

Wherein, described thunder detection module, vibration detection module, infrared sensor module and controller are connected with described logic judgment module respectively;

Described controller is connected with horn trumpet with described infrared sensor module respectively.

Described thunder detection module comprises sound transducer, sound card, signal pre-processing module, signal characteristic abstraction module and thunder identification module; Described sound transducer, sound card, signal pre-processing module, signal characteristic abstraction module and thunder identification module are connected in turn; Described thunder identification module is connected with described logic judgment module.

The beneficial effects of the utility model are, in the situation that automotive anti-theft alarming system keeps when sensitivity can prevent from thundering preferably the generation of reporting by mistake.

The accompanying drawing explanation

Fig. 1 is the existing cab warning schematic diagram that the utility model provides;

Fig. 2 is that the utility model provides a kind of based on signal, process without thunder wrong report automotive anti-theft alarming system constructional drawing.

The specific embodiment

Below in conjunction with accompanying drawing, preferred embodiment is elaborated.Should be emphasized that, following explanation is only exemplary, rather than in order to limit scope of the present utility model and application thereof.

Fig. 1 is the existing cab warning schematic diagram that the utility model provides.In Fig. 1, existing car alarm is vibration sensor at front end, once receive the controller that vibration signal is just passed to back, after so-called controller receives vibration exactly, bead, in the indoor rolling of cylinder, disconnects again with the secondary contact element contacts, forms electric current, so that sound horn, the time, oversize words can be sounded comprehensive alarm.The shortcoming of this car alarm is that vibration is violent when running into thunder, and the bead rolling time is long, and electric current is large, sends long-time wrong report.

Fig. 2 is that the utility model provides a kind of based on signal, process without thunder wrong report automotive anti-theft alarming system constructional drawing.In Fig. 2, described system comprises thunder detection module, vibration detection module, infrared sensor module, logic judgment module, controller and horn trumpet;

Wherein, described thunder detection module, vibration detection module, infrared sensor module and controller are connected with described logic judgment module respectively; Described thunder detection module is for detection of the thunder signal; Described vibration detection module, for receiving vibration signal, is sent into logic judgment module after being processed; Described infrared sensor module is for detection of arriving infrared signal; Described controller is for being reported to the police according to the output control horn trumpet of logic judgment module.

Described thunder detection module comprises sound transducer, sound card, signal pre-processing module, signal characteristic abstraction module and thunder identification module; Described sound transducer, sound card, signal pre-processing module, signal characteristic abstraction module and thunder identification module are connected in turn; Described thunder identification module is connected with described logic judgment module; Described sound transducer is for receiving the aud. snl. that comprises thunder; Described sound card is for being transformed to digital audio signal by the aud. snl. received; Described signal pre-processing module is for being gone successively DC component, horsepower rating spectrum, filtering and normalized to digital audio signal; Described signal characteristic abstraction module is for extracting the feature of thunder signal; Described thunder identification module is for being identified thunder.

Workflow of the present utility model is:

Step 1: logic judgment module judges that whether vibration sensor detects vibration signal, if so, enters step 2; Otherwise logic judgment module is not given controller signals, now horn trumpet does not ring;

Step 2: logic judgment module judges whether the thunder detection module transmits the thunder signal: if enter step 3; Otherwise logic judgment module makes horn trumpet send the warning sound to alerting signal of controller;

Step 3: logic judgment module need to start infrared sensor module to controller information and detect infrared signal: if enter step 4; Otherwise logic judgment module is no longer given controller signals, the horn trumpet state of keeping quite;

Step 4: logic judgment module makes horn trumpet send chimes of doom to controller signals.

The above embodiment; it is only the preferably specific embodiment of the utility model; but protection domain of the present utility model is not limited to this; anyly be familiar with those skilled in the art in the technical scope that the utility model discloses; the conversion that can expect easily or replacement, within all should being encompassed in protection domain of the present utility model.Therefore, protection domain of the present utility model should come the protection domain of requirement to be as the criterion with power.

Claims

One kind based on signal, process without thunder wrong report automotive anti-theft alarming system, it is characterized in that, described system comprises thunder detection module, vibration detection module, infrared sensor module, logic judgment module, controller and horn trumpet;

Wherein, described thunder detection module, vibration detection module, infrared sensor module and controller are connected with described logic judgment module respectively;

Described controller is connected with horn trumpet with described infrared sensor module respectively.
2. system according to claim 1, is characterized in that, described thunder detection module comprises sound transducer, sound card, signal pre-processing module, signal characteristic abstraction module and thunder identification module; Described sound transducer, sound card, signal pre-processing module, signal characteristic abstraction module and thunder identification module are connected in turn; Described thunder identification module is connected with described logic judgment module.