CN2797141Y

CN2797141Y - Automobile steering wheel lock having antitheft alarming device

Info

Publication number: CN2797141Y
Application number: CNU2005200124034U
Authority: CN
Inventors: 谢祯桂
Original assignee: Individual
Current assignee: Individual
Priority date: 2005-04-13
Filing date: 2005-04-13
Publication date: 2006-07-19
Anticipated expiration: 2015-04-13

Abstract

The utility model relates to an automobile steering wheel lock with an anti-theft alarming device, which comprises a group of mechanical anti-theft lockset fixedly locked on a steering wheel of an automobile, a group of anti-theft alarming circuit and a group of a wearable warning device, wherein the anti-theft alarming circuit is provided with a programmable central processing unit CPU which at least comprises a pressure change detection unit for detecting the instant generated change of the air pressure in the space of the automobile, an ultrasonic detection unit for detecting a moving article in the space of the automobile, an infrared detection receiving unit used for the receive and the detection of the wearable warning device, and a radio wave emitting unit. The wearable warning device is provided with a programmable central processing unit CPU which at least comprises an LCD display screen circuit for displaying anti-theft alarm and detection, an electricity saving control circuit which can turn off an LCD display screen in the process of standby, an infrared detection emitting unit used for the receive and the detection of the anti-theft alarming circuit, and a radio wave receiving unit.

Description

Automobile steering lock with anti-theft warning device

Technical field

The utility model provides a kind of automobile steering lock with anti-theft warning device, especially refer to a kind of robust mechanical vehicle steering closedown structure that has, and this lockset is provided with the anti-theft alarm circuit of the accurate antitheft detection of one group of tool, and can arrange in pairs or groups one group and have the automobile steering lock of long carry-on annunciator apart from anti-theft warning usefulness and distant control function concurrently.

Background technology

Many steermans are arranged at present for fear of liking that car is stolen, usually can in car, install handle lock, the gear lock, mechanical antitheft lock tools such as crutch lock are to save the love car from damage, yet this mechanical antitheft lock tool, even accurate again difficulty is opened or firm difficulty is ruined, the brilliant art of stealing in the face of car thief, it can only postpone succeeding the time of car thief at most, and can't reach complete theft-proof effect, as long as in fact have adequate time and complete outfit, desire is opened lockset or is destroyed also easy going smoothly as achieving one's aim easily of lockset, so its antitheft usefulness is troubling really; In addition, also common now car owners are at the antitheft equipment of automobile installing electronic type, hope likes that by being taken precautions against by the accurate antitheft detection performance of electronic anti-theft device car is stolen, and these common electronic type vehicular intrusion alarms are mostly by by being connected the automobile main battery to supply antitheft running required electric energy, and it is by doing antitheft detection by the Vibration induction mode mostly, during running, utilize the detector on its circuit to come the state of monitor vehicle, when vehicle-state takes place when unusual, for example, impact endurance test shock, door lock goes to pot, it after detecting by the detector on the circuit anti-theft warning device on the detection trigger driving circuit, produce the sound of high-decibel, to frighten the resistance burglar; Yet the alarms and security systems for automobiles of the existing electronic type of this class operates because of the main power source that is to use car, and not only backguy is installed difficultly, and circuit is easy to be blocked and loses the anti-theft warning function; Again, traditional vehicle steering lockset or electronic type burglar alarm are to be each article independently, so the customer is as desiring to have simultaneously the safety control of this binomial equipment, then must expend more money and buy more this binomial outfit, economical burden is heavier, moreover, traditional car alarms usually (for example thunder because of the unexpected seismic wave in the external world sends the sound, set off firecrackers, the truck process .... etc.), the alarm sound that this class is unusual, make home environment endure THE ANNOYANCE OF NOISE to the fullest extent, and make the car owner can produce the psychological application of " wolf has come " in the course of time, cause on the contrary alarm sound being negligent of noting and defence, even give it up long afterwards; In addition, when being touched, existing burglar alarm just produces alarm sound mostly onboard, unless the car owner is just near the love car, otherwise the car owner also has no way of learning this anti-theft alarm and detects so that make real-time strain disposal, yet under nowadays crowded city or uptown reality, the parking stall has found no parking space, hope is each still more all can be parked in the love car near the household of oneself, therefore the alarm sound of existing burglar alarm at most can only be in order to drive away the burglar of " timidity ", the real-time strain disposal of effect do to(for) the caution car owner almost is difficult to reach.

The utility model content

In view of this, the utility model provides a kind of automobile anti-theft alarm lock that has accurate antitheft detection of electronic type and the firm locking of mechanical type concurrently, it is to be provided with electronic type anti-theft alarm circuit in one group of body that can be locked in the mechanical antitheft lock tool on the vehicle steering admittedly, and this anti-theft alarm circuit has ultrasonic detecting unit and pressure variation detecting unit, can do the antitheft accurately monitoring of precision, when guarded automobile has the door and window that is not allowed to or invades, can change via unusual mobile object or the air pressure that these detecting units detect interior space, and the acousto-optic that triggers anti-theft alarm detects running, and lock car admittedly by this mechanical lockset body, to hinder but auto theft behavior, reach the compound antitheft usefulness of accurate detection and firm locking.

A kind of automobile steering lock with anti-theft warning device, comprise one group of mechanical antitheft lock tool that can be locked in admittedly on the vehicle steering, one group of anti-theft alarm circuit and one group can with the carry-on annunciator of this anti-theft alarm circuit coupling running, this anti-theft alarm circuit is to detect and operate according to an antitheft detection, when the abnormality detection of antitheft warning situation is triggered, make this alarm circuit send huge alarm sound and glisten strongly and frighten the resistance burglar, also can see through this radio wave transmission unit simultaneously and transmit the carry-on annunciator that the caution detection notice should be organized independent peripheral, the necessity that allows the user make promptness is according to this disposed, to reach the theft-proof usefulness of multiple caution; It is characterized in that:

This lockset, be provided with a stock body that extends at lock body, one padlock seat and one can be opened freely or lock the handle lock retaining ring of tying in lock body, the circuit unit of aforementioned anti-theft alarm circuit wherein is installed in this padlock seat, the lateral cross of this handle lock retaining ring is slightly c-shaped, and be provided with the tiger portion of indent at the cover eaves of its retaining ring, this handle lock retaining ring just can overlap on the torus that is buckled in bearing circle when making the lock knot, and the tiger portion of its cover eaves indent just strides and can put on the spoke of this bearing circle, again, this lockset can start this anti-theft alarm circuit simultaneously in when knot lock and comes into operation;

But the central processor CPU of this anti-theft alarm circuit tool one program, and comprise a pressure variation detecting unit at least, be to detect and operate according to the pressure variation of interior space, it just has an air pressure sensing loop and, the negative wave comparison loop, air pressure moment that the pressure detector in this pressure-sensing loop can be monitored interior space changes, and monitoring information changed into detection of electrons, via this just, the negative wave comparison loop goes out to this central processor CPU interpretation after doing to detect and handling, touch alarm when not having positive pressure signal when having only the negative pressure signal, when not having negative pressure as positive pressure, then the negative pressure signal will not read in positive pressure signal disappears back 200ms, set in view of the above so that the outer powerful air of minimizing car is mobile and report by mistake, to promote the detection accuracy in this pressure change-detection loop producing positive pressure in the car;

One ultrasonic detecting unit, be to operate by the moving Object Detection that detects interior space by ultrasonic, it sends ultrasonic by a ultrasonic emission part to interior space and detects, utilize a ultrasonic acceptance division to read signal again, and carry out exporting the central processor CPU differentiation to after the analyzing and processing, wherein, this ultrasonic emission part has a high frequency oscillation circuit, one detects a promotion loop and a ultrasonic projector, and this ultrasonic acceptance division has one and can receive the ultrasonic receptor that ultrasonic that the interior space object reflected detects, one can detect the amplifying return circuit that amplifies with backward wave, one detector circuit, one filter circuit, one low frequency amplifying return circuit, one in order to will limit the above frequently low pass amplifying return circuit that ends that detects of ripple, one in order to will limit following frequently high pass amplifying return circuit and the signals comparator that ends that detect of ripple, this central processor CPU is made program and is differentiated, width when the signal high potential, width is less than 5ms and denies recognition, equal then to store cumulative number greater than 5ms, its number of times that stores accumulative total was done number of times and differentiated in per 1.5 seconds.Differentiate the back and remove its record, equal or, be less than 16 then not alarms greater than 16 then alarms;

One infrared ray receiving element, in order to receive the infrared detection of sending by this carry-on annunciator and is handled after export central processor CPU to and make program and differentiate, it has an infrared receiver diode loop, can widen the loop with amplifying return circuit, a signals comparator and a signal delay of three grades of amplifications of signal do;

One radio wave transmission unit, have a loop of voltage regulation and the power supply voltage stabilizing can be supplied with each loop electric energy of aftermentioned, an encoding loop, a modulation loop, a base frequency oscillation loop, one 3 frequency multiplication loops, one 9 frequency multiplication loops, a bandpass filtering loop, promote a power amplifier and an output power amplifier, with encoded radio detection output;

But the central processor CPU of its tool one program of this carry-on annunciator, and comprise at least:

One LCD display loop can be detected anti-theft warning by this CPU department control and is presented on the lcd screen;

One power-saving control loop can be under the state of shutdown at aforementioned this anti-theft alarm circuit, makes whole annunciator with oneself be in battery saving mode, only provide this CPU running basic electric energy, and close this LCD display to save power consumption;

One infrared detection transmitter unit can send infrared detection to this anti-theft alarm circuit, match with the password that carries out this anti-theft alarm circuit boot program, or remote control starts the program that this anti-theft alarm circuit enters the delayed alert running;

One radiowave receiving element, in order to receive the radio detection of sending by this anti-theft alarm circuit and is handled after export central processor CPU to and do the program differentiation, it has one can adjust the resonance receive frequency to receive receiving wire loop, a high frequency amplifying return circuit of high-frequency signal, one bandpass filtering loop, a local oscillations loop, a mixing return circuit, an intermediate-frequency filter and one second intermediate frequency IC;

During running, by starting this anti-theft alarm circuit in when knot lock, and send out starting-up signal, after the radiowave receiving element of this carry-on annunciator is received boot code, entering the start reaction and be in the open state by this radio wave transmission unit by this lockset; This anti-theft alarm circuit and then carry out the delay routine that a car owner goes out from car then, simultaneously this anti-theft alarm circuit and this carry-on annunciator between also utilize its infrared detection transmitter unit, infrared detection receiving element and radio wave transmission unit, radiowave receiving element to carry out the password pairing of two-way transmission; After finishing the password pairing, this anti-theft alarm circuit promptly enters the state of antitheft warning; In the antitheft state of alert, when the detecting unit of this anti-theft alarm circuit is touched, can carry out the alarm timing flashing light and the sound that gives the alarm immediately, simultaneously by its radio wave transmission unit output RF alarm coded signal, when this carry-on annunciator is received RF alarm coded signal, also enter anti-theft alarm and operate and detect at the LCD display abnormality; After this anti-theft alarm circuit carries out the anti-theft warning running, as not shutting down or being disengaged setting with key, to when arriving, reenter the caution running time of setting the state of antitheft warning, and as when being shut down with key, the power supply of closing this anti-theft alarm circuit immediately decommissions, and in sending out off signal by its radio wave transmission unit simultaneously, this carry-on annunciator promptly enters in the battery saving mode after receiving the shutdown sign indicating number; In addition, when the user desires to enter automobile releasing anti-theft warning device, this anti-theft alarm circuit of remote-controlled startup enters the program of delayed alert running, to avoid the false touch warning system against theft, it is to be in the antitheft state of alert of start in this anti-theft alarm circuit, aim at the infrared detection receiving element of this anti-theft alarm circuit with the infrared detection transmitter unit of this carry-on annunciator, the emission of pressing function key postpones sign indicating number, this infrared ray postpones sign indicating number after this anti-theft alarm circuit decode is appraised and decided correctly, wait for timing, when antitheft detection is not touched in during the aforementioned wait timing, after this waits for timing at the expiration, this anti-theft alarm circuit is replied in the antitheft state of alert that enters start once more, but in during waiting for timing at this, the car owner opens the door when touching antitheft detecting unit into the car, then this anti-theft alarm circuit will enter the delayed alert timing, and the user shuts down with key in must be during this delayed alert timing and removes the setting of this anti-theft alarm circuit, otherwise after this delayed alert timing at the expiration, this anti-theft alarm circuit will trigger foregoing anti-theft warning running.

In addition, the utility model also provides a kind of automobile anti-theft alarm lock that has long apart from anti-theft warning usefulness and distant control function concurrently, its anti-theft alarm circuit in this lockset is provided with a radio wave transmission unit and infrared detection receiving element, and the one group of carry-on annunciator that can operate with the anti-theft alarm circuit coupling of this lockset of arranging in pairs or groups, and the control circuit of this carry-on annunciator comprises a radiowave receiving element and infrared detection transmitter unit at least; In view of the above, when automobile is invaded by the burglar, the anti-theft alarm circuit of this lockset also can see through this radio wave transmission unit and transmit this carry-on annunciator of caution detection notice except that the acousto-optic detection that triggers anti-theft alarm, and the necessity that allows the user make promptness is according to this disposed; In addition, the user also can utilize the infrared detection transmitter unit of this carry-on annunciator to send detection, enter the starting procedure of delayed alert running with the anti-theft alarm circuit of this lockset of remote control, pass in and out automobile, avoid producing the situation of false touch warning system against theft by this convenient user.

Other will describe in detail in following embodiment and claim about advantage of the present utility model and new characteristic.

Description of drawings

Fig. 1 is a block diagram of the present utility model;

Fig. 2 is that lockset of the present utility model is locked in the side-looking partial section view on the vehicle steering admittedly;

Fig. 3 is the functional block diagram of anti-theft alarm circuit of the present utility model;

Fig. 4 is the functional block diagram of pressure variation detecting unit of the present utility model;

Fig. 5 is the functional block diagram of ultrasonic detecting unit of the present utility model;

Fig. 6 is the functional block diagram of infrared ray receiving element of the present utility model;

Fig. 7 is the functional block diagram of carry-on annunciator of the present utility model;

Fig. 8 anti-theft alarm circuit of the present utility model and the diagram of circuit that the anti-theft warning running is arranged in pairs or groups between annunciator with oneself; And

Fig. 9 anti-theft alarm circuit of the present utility model and the diagram of circuit that the delayed alert running is arranged in pairs or groups between annunciator with oneself.

The specific embodiment

The utility model embodiment mainly comprises one group of mechanical lockset, one group of anti-theft alarm circuit and one group can with the carry-on annunciator of this anti-theft alarm circuit coupling running.

Wherein, as back accompanying drawing 1, shown in Figure 2, but this lockset 1 is to be the lock construction of a padlock on bearing circle, its structure is to be provided with tapered end, core in the pipe of lock body 11 ... wait the padlock member, this position, lock body 11 top is provided with the circuit unit that can set firmly aforementioned anti-theft alarm circuit in the padlock seat 12, the slightly c-shaped handle lock retaining ring 13 of this padlock seat end face tool one lateral cross, and two sides of this padlock seat 12 respectively be provided with a lock bolt jack 14 just can with a button bolt 15 collocation, below this lock body 11, then extend in addition and establish a stock body 18; During the lock knot, these handle lock retaining ring 13 covers are buckled on the torus 51 of bearing circle, and the tiger portion of indent is just striden can put on the spoke 52 of this bearing circle, go into these lock bolt jacks 14 with two end pin eye-splices of button bolt 15 again, the stock body 18 of this lockset is then stretched to put and is being driven on the table top, therefore this lockset lock is tied on bearing circle, reached the purpose that automobile burglar is saved from damage with the rotation that limits bearing circle; In addition, also starting this anti-theft alarm circuit in this lockset 1 lock knot comes into operation, as this anti-theft alarm circuit during antitheft running, detect to send the strong anti-theft alarm sound when unusual vibrations, instantaneous pressure variation or movement of objects are arranged in the compartment and glisten strongly to frighten and hinder the burglar, simultaneously this anti-theft alarm is detected the carry-on annunciator that transfers to this group independent peripheral via radio detection.

See also shown in Figure 3 again, this anti-theft alarm circuit is to operate according to an antitheft detection, when the abnormality detection of antitheft warning situation is triggered, make this alarm circuit send huge alarm sound and glisten strongly and frighten the resistance burglar, also can see through this radio wave transmission unit simultaneously and transmit this carry-on annunciator of caution detection notice, the necessity that allows the user make promptness is according to this disposed, to reach the theft-proof usefulness of caution; It has one group of independent battery group is the electric power supply source; Power supply through the switching on and shutting down loop, start keeps loop and loop of voltage regulation to be supplied to central process unit (CPU); But this CPU is the arithmetic processor of a program, and oscillation circuit (OSC) is the own oscillation circuit of this CPU; This alarm acousto-optic boosts and produces sound to drive outside piezoelectric patches handle this CPU output alarm song signal in the loop via boosting after; This low voltage detection loop comprises low voltage survey IC (for example N TAP CMOS IC) detection trigger when undertension and gives this CPU; This indicator lamp is subjected to the control of this CPU department, can glittering once (for example being 5 seconds) each specific the time during starting shooting, show this anti-theft alarm circuit normal armed state running in view of the above; In addition, this anti-theft alarm circuit also comprises a pressure variation detecting unit, a ultrasonic detecting unit, infrared ray receiving element and a radio wave transmission unit, wherein

As shown in Figure 3, this radio wave transmission unit comprises a loop of voltage regulation, an encoding loop, one modulation loop, a base frequency oscillation loop, one 3 frequency multiplication loops, one 9 frequency multiplication loops, a bandpass filtering loop, promote a power amplifier and an output power amplifier; This loop of voltage regulation can be supplied with each loop electric energy of aftermentioned with the power supply voltage stabilizing, produce code detection by this encoding loop, this modulation loop modulation frequency, after the carrier processing in this base frequency oscillation loop, 3 frequency multiplication loops and 9 frequency multiplication loops, commissure is to this bandpass filtering loop filter, and commissure to this promotion power amplifier and output power amplifier amplifies radio detection and output again.

And this pressure variation detecting unit, be to detect and operate according to the pressure variation of interior space, the air pressure signal of interior space has positive pressure and negative pressure (greater than ambient pressure at that time as known, or less than at that time ambient pressure), be negative pressure when for example being positive pressure, car door opening during closing of the door; This pressure change-detection unit is to read positive pressure signal and negative pressure signal always, when having signal not have positive pressure signal, touches negative pressure alarm, when not having negative pressure as positive pressure, then the negative pressure signal will not read in positive pressure signal disappears back 200ms, set in view of the above so that the outer powerful air of minimizing car is mobile and report by mistake, to promote the detection accuracy in this pressure change-detection loop producing positive pressure in the car.

As shown in Figure 4, this pressure variation detecting unit comprises: a power filter loop, a power supply loop of voltage regulation, an air pressure sensing loop, a low-pass amplifier, one are positive and negatively adjusted the loop to Bob than a loop and a sensitivity; Power supply is by this power filter loop input, do filtering through electric capacity, supply with this power supply loop of voltage regulation, the pressure detector in this pressure-sensing loop, best, be to adopt an Electret Condencer Microphone (CONDENSER MICROPHONE), door when automobile, when window is opened, air pressure moment of interior space is changed, the situation that this air pressure sensing loop is about to this air pressure variations changes into detection of electrons, via this low-pass amplifier signal is amplified, again just by this, the negative wave comparison loop is just being done, the detection of negative signal, then will be just, negative sense detects and exports central processor CPU to through processing and amplifying, and last, this central processor CPU signal is in view of the above carried out default anti-theft warning step.In addition, on this pressure variation detecting unit, also be provided with the sensitivity adjustment loop that a variable resistance is a primary clustering.

This ultrasonic detecting unit, be by detect the mobile object of interior space by ultrasonic, by a ultrasonic emission part interior space is sent ultrasonic, utilize a ultrasonic acceptance division to read signal, and carry out exporting the central processor CPU differentiation to after the analyzing and processing, when the abnormality detection of antitheft warning situation is triggered, makes this alarm circuit send huge alarm sound and frighten the resistance robber, to reach the theft-proof usefulness of caution.

And as shown in Figure 5, this ultrasonic detecting unit comprises: a ultrasonic emission part and a ultrasonic acceptance division; Wherein, the ultrasonic emission part has a high frequency oscillation circuit, a detection promotes loop, a ultrasonic projector; And this ultrasonic acceptance division has a ultrasonic receptor, amplifying return circuit, detector circuit, filter circuit, sensitivity adjustment loop, low frequency amplifying return circuit, low pass amplifying return circuit, high pass amplifying return circuit, signals comparator.

During running, at the ultrasonic emission part: this high frequency oscillation circuit can produce the ultrasonic of characteristic frequency, for example 40KHZ promotes the loop after testing and does oppositely output and limit power (electric current) by a resistance, is detected to interior space emission ultrasonic by the ultrasonic projector again.

And at the ultrasonic acceptance division: this ultrasonic receptor receives the ultrasonic that interior space object reflected and detects, these backward waves detect via amplifying return circuit the 40KHZ ripple are read to detect amplification frequently, pass through detector circuit then, after the processing of filter circuit, with the low frequency amplifying return circuit low frequency is detected again and amplify, through the low pass amplifying return circuit ripple more than the 30Hz is detected frequently simultaneously and end, the high pass amplifying return circuit detects the ripple below the 1.5Hz frequently and ends, export central processor CPU to after handling by signals comparator then and do the program differentiation, width when the signal high potential, width is less than 5ms and denies recognition, equal then to store cumulative number greater than 5ms, its number of times that stores accumulative total was done number of times and differentiated in per 1.5 seconds.Differentiate the back and remove its record, equal or, be less than 16 then not alarms greater than 16 then alarms.In addition, on this ultrasonic acceptance division, also be provided with the sensitivity adjustment loop that a variable resistance is a primary clustering.

Again as shown in Figure 6, this infrared ray receiving element comprises an infrared receiver diode loop, an amplifying return circuit, a signals comparator and a signal delay and widens the loop; This infrared receiver diode loop can receive the infrared detection of being sent by carry-on annunciator, to detect after this amplifying return circuit is done three grades of amplifications and the processing of this signals comparator, the ripple of being widened amplification increase signal in loop by this signal delay is wide in order to program decoding, exports central processor CPU then to and does the program differentiation.

Carry-on annunciator and for example shown in Figure 7 is a collocation aforementioned anti-theft alarm circuit and operating, and it has one group of independent battery group is the electric power supply source; This battery is provided with charge circuit can connect the external charging supply; Power supply is supplied to central process unit (CPU) through loop of voltage regulation; But this CPU is the arithmetic processor of a program, is responsible for the work of sequential such as Xie Code, switching on and shutting down, cresset caution, alarm song access memory, removing alarm, the not enough caution of battery, power-saving control; And oscillation circuit (OSC) is the own oscillation circuit of this CPU; This low voltage detection loop comprises low voltage survey IC (for example N TAP specification) detection trigger when undertension and gives this CPU; This caution sound loop is sounded by a buzzer phone (BUZZER) by this CPU department control; This LCD display loop also is subjected to this CPU department control, anti-theft warning can be detected to be presented on the lcd screen; Also arrange in pairs or groups this CPU and operate in this access memory and removing loop; This power-saving control loop can be under the state of shutdown at aforementioned this anti-theft alarm circuit, makes whole annunciator with oneself be in battery saving mode, only provide this CPU running basic electric energy, and close this read-out to save power consumption; This infrared detection transmitter unit can send infrared detection to this anti-theft alarm circuit, match with the password that carries out this anti-theft alarm circuit boot program, or remote control starts the program that this anti-theft alarm circuit enters the delayed alert running; In addition, this carry-on annunciator also comprises one group of radiowave receiving element, wherein:

This radiowave receiving element comprises a receiving wire loop, a high frequency amplifying return circuit, a bandpass filtering loop, a local oscillations loop, a mixing return circuit, an intermediate-frequency filter and one second intermediate frequency IC; The resonance receive frequency can be adjusted to receive high-frequency signal in this receiving wire loop; The rf carrier that receives by antenna after the amplification in this high frequency amplifying return circuit, bandpass filtering loop and Filtering Processing commissure to this mixing return circuit; This local oscillations loop have that base frequency oscillation loop, 9 frequency multiplication amplifying return circuits, 9 frequency multiplication resonant tanks can produce that another oscillation frequency detects and commissure to this mixing return circuit; And this mixing return circuit can produce intermediate-freuqncy signal in this mixing with two kinds of signals, and make intermediate-freuqncy signal via this intermediate-frequency filter commissure to this second intermediate frequency IC; This second intermediate frequency IC will import and export central processor CPU after intermediate-freuqncy signal filtering, detection, amplification and the comparison process to and make program and differentiate.

The utility model disposes as the aforementioned, now cooperate again the diagram of circuit of Fig. 8 further specify this anti-theft alarm circuit and this carry-on annunciator between mutual collocation running as follows: under initial state, this anti-theft alarm circuit is in the shutdown, and this carry-on annunciator is in the battery saving mode, and this carry-on annunciator still can receive signal from this anti-theft alarm circuit in battery saving mode, does not show that just the LCD figure is to save electric energy; This anti-theft alarm circuit start after starting shooting with key, and send a long sound caution, and carry out the low voltage trace routine, and send out starting-up signal by its radio wave transmission unit, after this carry-on annunciator is received boot code, enter start and react and be in the open state; In the aforementioned start process, when if the voltage detecting result of this anti-theft alarm circuit is low voltage, then can send the caution of three basses, and by its radio wave transmission unit signal that to transmit this anti-theft alarm circuit when sending out starting-up signal be low voltage, and after this carry-on annunciator receives boot code, entering the start reaction and showing the information that this anti-theft alarm circuit is a power shortage simultaneously;

Aforementioned boot program continues, this anti-theft alarm circuit and then execution go out to postpone 30 seconds programs, so that allow the user have the abundant time to leave car, the action of closing the door, this anti-theft alarm circuit goes out to prolong the password pairing of carrying out two-way transmission in 30 seconds with this carry-on annunciator at this simultaneously, these passwords have more than 1,000,000 groups all burnings in program IC, password when pairing must carry-on annunciator operating and setting at pairing mode, and its infrared detection transmitter unit aimed at the infrared detection receiving element of this anti-theft alarm circuit, with the pairing of learning from each other automatically;

After finishing the password pairing, this anti-theft alarm circuit promptly enters the state of antitheft warning, and test this carry-on annunciator trusted effect of car owner position in the time of 10 minutes in timing, send out the test patterns signal by its radio wave transmission unit in the time of promptly the 10th minute, when if this carry-on annunciator is normally received the test patterns signal, can send a short sound caution and LCD and show online middle figure.

In the antitheft state of alert, when the detecting unit of this anti-theft alarm circuit is touched, carry out 10 seconds flashing lights of alarm timing immediately, and the sound that gives the alarm, simultaneously by its radio wave transmission unit output RF alarm coded signal, when this carry-on annunciator is received RF alarm coded signal, also enter anti-theft alarm and operate and detect at the LCD display abnormality.

After this anti-theft alarm circuit carries out the anti-theft warning running, as not shutting down or being disengaged setting with key, to when arriving, reenter the caution running time of setting the state of antitheft warning, and as when being shut down with key, the power supply of closing this anti-theft alarm circuit immediately decommissions, and in sending out off signal by its radio wave transmission unit simultaneously, this carry-on annunciator promptly enters in the battery saving mode after receiving the shutdown sign indicating number.

In addition, when the user desires to enter automobile releasing anti-theft warning device, this anti-theft alarm circuit of remote-controlled startup enters the program of delayed alert running, to avoid the false touch warning system against theft, its operation workflow is as shown in Figure 9: be in the antitheft state of alert of start at this anti-theft alarm circuit, aim at the infrared detection receiving element of this anti-theft alarm circuit with the infrared detection transmitter unit of this carry-on annunciator, the emission of pressing function key postpones sign indicating number, this infrared ray postpones sign indicating number after this anti-theft alarm circuit decode is appraised and decided correctly, wait for timing (default wait timing is 20 seconds), simultaneously export low power delayed acknowledgement coded signal by the radio wave transmission unit of this anti-theft alarm circuit, when this carry-on annunciator is received the delayed acknowledgement coded signal, promptly send four tones of standard Chinese pronunciation sound and confirmed; When antitheft detection is not touched in during the aforementioned wait timing, after this waits for timing at the expiration, this anti-theft alarm circuit is replied in the antitheft state of alert that enters start once more, but in during waiting for timing at this, the car owner opens the door when touching antitheft detecting unit into the car, then this anti-theft alarm circuit will enter delayed alert timing (default delayed alert timing is 30 seconds), and the user shuts down with key in must be during this delayed alert timing and removes the setting of this anti-theft alarm circuit, otherwise after this delayed alert timing at the expiration, this anti-theft alarm circuit will trigger foregoing anti-theft warning running.

Claims

1, a kind of automobile steering lock with anti-theft warning device, comprise one group can be locked in admittedly mechanical antitheft lock tool on the vehicle steering, one group of anti-theft alarm circuit and one group can with the carry-on annunciator of this anti-theft alarm circuit coupling running; It is characterized in that:

But the central processor CPU of this anti-theft alarm circuit tool one program, and comprise at least:

One pressure variation detecting unit, its have an air pressure sensing loop and one positive and negative to Bob than the loop;

One ultrasonic detecting unit is to operate by the moving Object Detection that is detected interior space by ultrasonic; Wherein, this ultrasonic emission part has a high frequency oscillation circuit, and detects a promotion loop and a ultrasonic projector, and this ultrasonic acceptance division has one and can receive ultrasonic receptor, that ultrasonic that the interior space object reflected detects and backward wave can be detected the amplifying return circuit that amplifies, a detector circuit, a filter circuit, a low frequency amplifying return circuit, one in order to will limit the above frequently low pass amplifying return circuit, that ends of detecting of ripple in order to will limit high pass amplifying return circuit and the signals comparator that the following frequently detection of ripple ends, and this central processor CPU is done the program differentiation;

One radiowave receiving element, in order to receive the radio detection of sending by this anti-theft alarm circuit and is handled after export central processor CPU to and do the program differentiation, it has one can adjust the resonance receive frequency to receive receiving wire loop, a high frequency amplifying return circuit of high-frequency signal, one bandpass filtering loop, a local oscillations loop, a mixing return circuit, an intermediate-frequency filter and one second intermediate frequency IC.

2, the automobile steering lock with anti-theft warning device as claimed in claim 1 is characterized in that: also be included in this pressure variation detecting unit and be provided with a variable-resistance sensitivity adjustment loop.

3, the automobile steering lock with anti-theft warning device as claimed in claim 1 is characterized in that: the pressure detector of described this pressure variation detecting unit is an Electret Condencer Microphone.

4, the automobile steering lock with anti-theft warning device as claimed in claim 1 is characterized in that: also be included in this ultrasonic acceptance division and be provided with a variable-resistance sensitivity adjustment loop.