CN2500562Y - Multifunctional antihijacking apparatus for taxi - Google Patents

Abstract

The utility model relates to a multifunctional hijacking preventing apparatus for a taxi, which belongs to an accessory device of an automobile, particularly a multifunctional hijacking preventing apparatus aiming at taxies. The utility model is composed of a central controller, a high-voltage electric shocking device, a light alarm device, a radio alarm transceiver, and a centrally controlled lock for a taxi door, wherein the five parts are connected; the central controller can operate the contact of a relay to change for converting the output voltage via touching and pressing an alarm switch, so the high-voltage electric shocking device, the light alarm device, the radio alarming transceiver and the centrally controlled lock for a taxi door can respectively enter the working state. The high-voltage electric shocking device adopts a delay circuit and a positive feedback high-voltage oscillating circuit; the light alarm device adopts a non-steady-state oscillating circuit. The utility model can efficiently prevent a criminal in time and protect the safety of a driver with simple structure, reliable operation and complete functions.

Description

The taxi multifunctional antihijacking device

" technical field "

The utility model belongs to the accessory device of automobile, particularly at the multi-functional antihijacking device of taxicar.

" technical background "

Warning device all is not installed on traditional automobile, and therefore chaufeur is killed cruelly in recent years, and the incident that automobile is plundered often takes place.Particularly owing to the particularity of taxi trade, taxicar has become the target of offender's crime, and the case ratio that takes place in the sector is the highest, and presents the trend that rises year by year.In recent years the taxicar in many places has been installed the CAS annunciator, still remains high but rob the car case.Trace it to its cause, mainly be: when (1) departed from the electric network winding thread when automobile, perhaps during the entering signal dead angle, public security department can't be to the condition monitoring of automobile; (2) this annunciator only sends signal to public security, the colleague is not sent signal, although can run into various vehicles in the way of travelling, can't send the calling help signal that criminal does not know, and miss the rescue chance, can not in time prevent crime; (3) automobile driving speed is fast, and chaufeur is coerced, and life harm is instantaneous promptly to be sent out, even known crime initially, but etc. public security organ when arriving in the spot, felony has taken place, criminal also flees from.

" summary of the invention "

The technical problems to be solved in the utility model provides a kind of taxi multifunctional antihijacking device, and it is simple in structure, and reliable operation is multiple functional, can in time prevent crime effectively, the safety of protection chaufeur.

The scheme that solution the utility model technology is adopted is: on the radiowarning transceiver or car door central controlled lock basis that utilize existing part taxicar to be equipped with, the circuit of central controller, high-voltage electric shock device, visual alarm, radio alarming transceiver and car door central controlled lock five parts is coupled together, thereby constitute this device.The structure of each several part is: (1) central controller is, after connecting with relay contact, alarm switch and an indicator lamp being connected in parallel, the relay of three parallel connections inserts automobile power source, the contact of two other relay is connected on the positive and negative electrode of automobile power source respectively, and one operating point is connected to another cut-off point, again with two contacts of this dislocation as mouth; (2) the high-voltage electric shock device is, input end connects the mouth of central controller, behind the diode of having connected turn-on time time delay circuit, in time delay circuit, connected relay, the two contacts of this relay band, a contact connects the input of car door central controlled lock, another contact series connection indicator lamp and trigger switch, the positive feed back high-voltage oscillation circuit is connected to trigger switch again, and high-field electrode is contained on the seat; (3) visual alarm is, import the mouth of termination central controller and inserted diode in series and working lamp, after diode inserts non-steady-state oscillation circuit and radio alarming transceiver, in this circuit, connected relay in the loop of working lamp, relay contact series connection alarm lamp.

When taking place to kidnap case, chaufeur is as long as touch the alarm switch (this switch is located at exclusion of penalty and violates the place of noting) of central controller, the relay work and the self-locking of central controller, the contact adhesive, the polarity paraphase of mouth, at this moment be arranged on the diode current flow of high-voltage electric shock device and visual alarm input end, high-voltage electric shock device, visual alarm, radio alarming transceiver and car door central controlled lock get, start working, even criminal finds the back alarm switch is destroyed, still can not end the work of each components and parts.At this moment, visual alarm is in working lamp kept burning day and night owing to the paraphase of electric power polarity is extinguished, the non-steady-state oscillation circuit of starting working then makes relay on-off alternately, alarm lamp is constantly glimmered, the radio alarming transceiver also sends radio signal simultaneously, and the radio alarming transceiver that near 300～500 meters vehicles are adorned is received the signal of same frequency; In order to prevent that criminal from raising difficult questions suddenly, no vehicle is succoured perhaps, but the time delay circuit of high-voltage electric shock device is ready within a short period of time, and the car door central controlled lock closed, that as long as chaufeur confirm is sat in the car is criminal, and finds that desire does violence to oneself, can press trigger switch rapidly, the positive feed back high-voltage oscillation circuit can produce the high-tension current of 15KV, and criminal is knocked down, and delay function can avoid accidentally injuring the passenger again simultaneously.

" description of drawings "

Fig. 1 is a working envelope scheme drawing of the present utility model.

Number in the figure is central controller a, high-voltage electric shock device b, time delay circuit c, positive feed back high-voltage oscillation circuit d, visual alarm e, radio alarming transceiver f, car door central controlled lock g, alarm switch K1, cancel switch K2.

Fig. 2 is the central controller schematic circuit diagram.

Number in the figure is alarm switch K1, cancel switch K2, relay J 1, J2 and J3, resistance R, capacitor C, indicator lamp D.

Fig. 3 is the schematic circuit diagram of visual alarm.

Number in the figure is diode D1, D2, D3 and D, working lamp ZD2, aerotron BG1 and BG2, relay J 4, alarm lamp ZD3 and ZD4, resistance R, capacitor C.

Fig. 4 is the schematic circuit diagram of high-voltage electric shock device.Number in the figure is diode D, resistance R, capacitor C, relay J 5, indicator lamp DZ, trigger switch K3, aerotron BG, voltage transformer B.

" specific embodiment "

Referring to Fig. 1, automobile power source is by (1), (2) input central controller a, and is positive and negative from the polarity of mouth (3), (4) and (5), (6) by its control, and power supply is delivered to visual alarm e and high-voltage electric shock device b respectively.Visual alarm e delivers to radio alarming transceiver f by a lead-out terminal (7), (8) with power supply, as common RF-02T and RF-02 type wireless transmission/reception module when work; High-voltage electric shock device b is made up of time delay circuit c and positive feed back high-voltage oscillation circuit, the car door central controlled lock g of the output termination routine of high-voltage electric shock device b.

Referring to Fig. 2, for guaranteeing the central controller reliable operation, what change-over swith wherein adopted entirely is relay J 1, J2, and J3, these three relay J 1, J2, after the J3 parallel connection again respectively with the contact of a relay J 1, alarm switch K1 and indicator lamp D series connection back power connection (1), (2), two relay J 2 in addition, one end of the contact of J3 just is being connected on power supply respectively, negative pole (1), (2), but these two contacts all take one operating point to be connected to the dislocation connection mode of another cut-off point, and this dislocation contact is mouth (3), (4) and (5), (6).During cruising, indicator lamp D is bright, and the little undercurrent that passes through is so that the relay adhesive; When running into criminal, touch the K1 that is installed in the shelter, at this moment the electric current by relay J 1, J2, J3 is bigger, makes its contact adhesive, the polarity reversal of mouth (3), (4) and (5), (6), the each several part that is connect is started working, indicator lamp D extinguishes because of the adhesive of J1 contact simultaneously, even K1 goes to pot, central controller is still in running order, when pressing when having only the cancel switch K2 that chaufeur just knows, whole warning antihijacking device just quits work.This circuit has all connected resistance R and capacitor C at the two ends of relay contact, in case spark the time appears in work, reduces the life-span of relay.

Referring to Fig. 3, mouth (3), (4) of the input termination central controller of visual alarm, and having inserted diode in series D3 and working lamp ZD2 at these two ends, diode D1, D2 have connected again on the current return of the non-steady-state oscillation circuit behind the working lamp loop.When central controller was not worked, electric current can only be by D3 and ZD2, roof working lamp ZD2 light yellow, and the non-steady-state oscillation circuit behind D1, the D2 is in and ends; When central controller is worked, input end polarity reversal, electric current can pass through series connected non-steady-state oscillation circuit of diode D1, D2 and back and radio alarming transceiver.The non-steady-state oscillation circuit of this device is to adopt aerotron BG1, BG2 and capacitor C, resistance R to connect to form, utilize discharging and recharging of charging capacitor C, the cycle variation that makes BG1, BG2 produce conducting, end respectively, in the current path of BG2, connected relay J 4, the contact of relay J 4 series connection alarm lamp ZD3, ZD4, when J4 with the BG2 adhesive and when disconnecting, ZD3, ZD4 glimmer with regard to one bright one with going out, send alerting signal.Also be parallel with resistance R and the series connected protective circuit of capacitor C at relay J 4 contact two ends.Between the base stage of BG1 and emitter, also be connected with capacitor C,, send false alarm in case produce self-excitation phenomena.

Referring to Fig. 4, the input end of high-voltage electric shock device (5), (6) are connected in the mouth of central controller, after input end has been connected diode D again turn-on time time delay circuit c.Time delay circuit c adopts when being NE555, and base integrated package and resistance R, capacitor C connect to form, in circuit, inserted simultaneously relay J 5, two contact J5-2 of this relay band and J5-1, a contact J5-2 connects the input (11) of car door central controlled lock, another contact J5-1 connects with indicator lamp DZ and trigger switch K3, and positive feed back high-voltage oscillation circuit d input end (9) is connected to trigger switch K3 again.Owing to the unidirectional conducting of input end diode in series D, the high-voltage electric shock device is not worked at ordinary times.When central controller makes input end (5), (6) paraphase, the D conducting, central controller is started working.At first, the voltage of the capacitor C of time delay circuit c can not suddenly change, and the A pin of time base integrated package NE555 is an active potential, and its output pin is a high potential, relay J 5 not adhesives; Along with by R C being charged, when A pin current potential rose to 2/3Vcc, the internal trigger of time base integrated package NE555 overturn, mouth is a high potential, the J5 adhesive, and electric shocking indicator lamp DZ is luminous, while car door central controlled lock input end (11), (12) get electric, and car door is pinned.Press trigger switch K3, positive feed back high-voltage oscillation circuit d gets electric, is contained in the high-field electrode discharge on the seat, makes the offender lose ability of commiting a crime.What positive feed back high-voltage oscillation circuit d adopted is, resistance R is connected with capacitor C, electric current is coupled to aerotron BG base stage, form positive feed back, produce the vibration of 30kHz, through B level of voltage transformer output high voltage, voltage doubling rectifying circuit by forming by capacitor C, diode D again, produce the little electric current high-tension current of 15kV at the output electrode place, this is enough to subdue criminal, does not cause the injury of essence again.

Claims (3)

1, a kind of taxi multifunctional antihijacking device, include radiowarning transceiver and car door central controlled lock, it is characterized in that being connected to form by central controller, high-voltage electric shock device, visual alarm, radio alarming transceiver and car door central controlled lock five parts, the structure of each several part is:

(1) central controller is, after connecting with relay contact, alarm switch and an indicator lamp being connected in parallel, the relay of three parallel connections inserts automobile power source, the contact of two other relay is connected on the positive and negative electrode of automobile power source respectively, and one operating point is connected to another cut-off point, again with two contacts of this dislocation as mouth;

(2) the high-voltage electric shock device is, input end connects the mouth of central controller, through time delay circuit turn-on time of having connected behind the diode again, in time delay circuit, connected relay, the two contacts of this relay band, a contact connects the input of car door central controlled lock, and another contact is connected with indicator lamp and trigger switch, the positive feed back high-voltage oscillation circuit is connected to trigger switch again, and high-field electrode is contained on the seat;

(3) visual alarm is, import the mouth of termination central controller and inserted diode in series and working lamp, in parallel through diode bonded assembly non-steady-state oscillation circuit and radio alarming transceiver behind the working lamp loop, in this circuit, connected relay, relay contact series connection alarm lamp.

2, by the described taxi multifunctional antihijacking device of claim 1, it is characterized in that:

(1) relay contact of all in central controller two ends all are parallel with the protective circuit of resistance, capacitances in series, and series connection is understood except that switch in input channel;

(2) time delay circuit in the high-voltage electric shock device adopts when being NE555, and base integrated package and resistance, electric capacity connect to form, the positive feed back high-voltage oscillation circuit adopts resistance to be connected with electric capacity, be coupled to transistor base, be connected to the voltage doubling rectifying circuit of forming by voltage transformer and electric capacity, diode;

(3) non-steady-state oscillation circuit in the visual alarm is to adopt aerotron and electric capacity, resistance to connect to form, and also is parallel with the protective circuit of resistance, capacitances in series at the relay contact two ends.

3,, it is characterized in that between the transistor base of the non-steady-state oscillation circuit of visual alarm and emitter, also being connected with electric capacity by the described taxi multifunctional antihijacking device of claim 2.

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