TWM274284U - Vehicular steering wheel lock having burglar alarm device - Google Patents

Description

M274284 · 8. Description of the new type: [Technical field to which the new type belongs] This creation is to provide an anti-theft alarm-a sturdy and durable mechanical steering wheel lock for a car, especially an anti-theft device equipped with a precise anti-counterfeit And the lock has [prior art] car steering wheel lock. Press, at present, many drivers in order to avoid the installation of steering wheel locks, gear locks, crutch locks and other mechanical defense: lock and :: two car equipment, if you want to open the lock or destroy the lock is also the same; ί === equipped with anti-theft The performance is really worrying; in addition, it is also common today: d Therefore it is equipped with electronic anti-theft equipment, hoping to use electronic anti-secondary * in the car installation = car stolen, and these common electronic; car anti- The main battery of the car is used to supply the anti-theft operation station. When the anti-theft test is performed by vibration induction, the state of the vehicle is monitored by using the error. When the state of the vehicle is abnormal, such as the door lock of the device: damage, the circuit After the tester knows the debt, it triggers the signal to drive the electric power :: The sound produced by the decibel is to deter the thief; however, this type of conventional electric power: The eight-car anti-benefit device is used because it is the main power source of the car. Operation, not only women's clothing, but also the circuit can be easily cut off and lose the anti-theft warning function; also, = the steering wheel lock or electronic anti-theft alarm for consumers who want to have both of these devices , You must add money to purchase the two items of equipment 'heavy economic burden, in addition, the traditional alarm device often makes sounds due to sudden external shock waves (such as thunder, firecrackers passing ... etc.)' The alarm sounds, making the home environment be full of noise 2 Over time, the owner will have a psychological effect of ㈣㈣, leading to reaction

^ ef 5049PUA 5 M274284 · * m report, neglecting attention and precautions, and even discarding it after a long time; in addition, the conventional anti-theft alarm ^ When triggered, most of them only produce an alarm sound on the car, unless the owner just Near the car, otherwise the owner will not know the burglar alarm signal in order to make an immediate dual treatment. However, in the reality of today's crowded cities or residential areas, parking spaces are already difficult to find, and K can hope that every time You can park your car near your home. Therefore, the alarm sound of the conventional anti-theft alarm can only be used to drive away at most. The timid thief, Xiao Yu warns the owner of the emergency response is difficult to achieve. 疋[New content] In view of this, this creation is a car anti-theft alarm lock that has both electronic precision anti-theft detection and mechanical sturdy locking. It is a mechanical anti-theft lock that can be fixed to the steering wheel of a car ^ The body of the lock is provided with an electronic anti-theft alarm circuit, and the = theft alarm circuit has an ultrasonic detection unit and a pressure change detection unit, which can be used for precise and accurate anti-theft When the protected car has doors or windows that are not allowed to open or intrude, you can use these detection units to detect abnormal moving objects or changes in air pressure in the space of the car, and trigger the sound and light signal of the anti-theft alarm. Operation, and use the mechanical lock body to lock the car to prevent car theft, to achieve double detection of anti-theft performance with precision detection and sturdy locking. In addition, this creation also provides a long-range anti-theft alarm performance and remote control Function automobile anti-theft alarm lock, which is provided with a radio wave transmitting unit and an infrared signal receiving unit on the anti-theft alarm circuit of the lock, and is equipped with a set of portable alarms that can be matched with the anti-theft alarm circuit of the lock ^, and the The control circuit of the portable alarm device includes at least a radio wave receiving unit and an infrared signal transmitting unit. According to this, when a car is invaded by a thief, the lock's anti-theft alarm circuit will not only trigger the sound and light signal of the anti-theft alarm, but also pass through the The radio wave transmitting unit sends a warning signal to notify the portable alarm device, so that the user can make timely necessary information. In addition, the user can also use the infrared signal transmitting unit of the portable alarm device to send a signal to remotely control the lock's anti-theft alarm circuit to enter the start-up procedure of the delayed alarm operation, thereby facilitating the user to enter and exit the car and avoid accidental contact with theft. Alarm system

Ref. 5049PUA 6 M274284. c. In this creation, the anti-theft alarm circuit includes at least a pressure change detection unit that can monitor the instantaneous changes in force in the interior space of the car, an ultrasonic wave detection unit that can detect the interior space of the car == a signal, and a warning for the portable The transmitter receives and transmits the infrared signal receiving unit and the radio wave transmitting unit of the Λ5 tiger, and a central processor, which is used to determine the authenticity of the anti-theft detection signal. ^ Report :: set: The anti-theft warning signal that transmits radio waves notifies the portable alarm device. The remote control infrared signal of the tunnel body is used for delayed anti-theft operation. The air pressure change measuring unit is used to detect the ir air of the car ► =: r pressure signal has positive pressure and negative pressure == ambient pressure when the main ring is closed), such as positive pressure when the door is closed, car: Lu !!!! Pressure: The pressure change detection unit is reading the positive pressure letter directly; the second pressure m'r triggers an alarm when there is a negative pressure signal and no positive pressure signal, and when there is positive pressure and no negative pressure, the negative pressure The signal is read at positive pressure rr ::: 2, and is set accordingly to reduce the strong air pressure outside the car, so as to improve the accuracy of the pressure change detection circuit. The Huber test signal is centrally processed by the anti-theft alarm circuit. The device cpu determines that the road emits a huge alarm sound and a strong flash to deter the Xiao Xiaotong. The two-body measurement unit reads the signal from the moving object receiving circuit in the car space using ultrasonic waves. The central processing unit CPU of the wave circuit judges that the anti-theft alarm is output within 5ms and will not be recognized. If the width is greater than 'width less than A ^, the accumulated number of times will be stored, and the accumulated number of times will be stored every 1,5 seconds. Judgment; Discrimination of the price of Miscellaneous II, Dang❹; Signal determination ^ True ^ This ^ The ultra = wave_ unit huge alarm sound deter Xiao Xiao Er the η ::, electricity: send a signal to notify the portable warning to write Let the radio wave launch early Police did - Ding Jie It allows users to make the necessary timeliness at

^ ef 5049PUA 7 M274284 to achieve the anti-theft alarm performance. -Based on this creation, the portable warning device contains at least-radio wave receiving unit = _ = evening line signal transmitting unit and-programmable central processing unit CPU, signal display LCD and other components. The portable warning device-programmable central processing unit CPU, and at least one I Γ η bottle-SM display screen which can display an anti-theft warning signal, a power saving control circuit, the LCD can be turned off with 7 :::: f: ,, up ☆ Infrared signal hair emitting unit and radio wave receiving unit for transmitting and receiving signals with the anti-theft alarm circuit. In the initial state, the anti-theft alarm circuit is in the power-off mode, and the power-saving alarm circuit is in the power-saving mode. The portable alarm device can still receive the anti-theft invitation molybdenum to change to save poems ~~…, but it does not display the LCD graphic key. After the boot, the anti-theft alarm circuit is activated, and a long line of low-voltage detection sequence is issued, The radio wave transmitting unit sends out the start-up fa 纟, and the portable alarm device enters the start-up state after receiving the start-up code; during the above-mentioned start-up process * 2 should be performed and the result is low power M, it will issue 1: tone = The voltage detection of Nushan is a no-no, and its Yilui Leibing said that when it sends a power-on signal, it transmits the road "It ’s pretty ^, No. respect, the body warning device received the power-on code Then, enter :: Theft alarm circuit is a message that the power is insufficient; I will not prevent the jaw from continuing the aforementioned boot-up procedure. 'The immobilizer alarm circuit will then execute the out-of-delay procedure to allow the user to have enough. ,alarm The road is delayed by 3. The second pass is paired with the password transmitted by the portable alarm device within 2 seconds. These passwords have more than 1 million sets. ° When the password is paired, the operation of the portable alarm device must be set to automatically learn from each other. Pairing; the old port received Zaofan. After completing the password pairing, the anti-theft alarm circuit entered the anti-cooker and tested the location of the vehicle owner at the time of 1G minutes. The result = the radio wave at the 10th minute. The transmitting unit sends out the test; code = tiger =

Ref. 5049PUA 8 M274284 · r When the portable alarm device normally receives the test code signal, it will issue a _ short sound warning and the LCD will display the graphics in the connection. In the anti-theft alert state, when the pre-measurement unit of the anti-theft alarm circuit is touched, the alarm clock flashes for 10 seconds immediately, and the alarm sounds, and at the same time, its radio wave transmitting unit outputs an RF alarm code signal. The portable alarm device When receiving the RFM code signal, it also enters the burglar alarm and displays an abnormal signal on the LCD. = Heart, after stealing the burglar road to perform the anti-theft warning operation, if it is not shut down or being shut down with a key, except M ′, it will re-enter the state of the anti-secondary disk t when the set warning operation time is reached, and if it is shut down with a key, Immediately turn off the anti-theft power »=; make ^: and send a yield signal by its radio wave transmitting unit at the same time. Μ You will enter the power saving mode when you do not receive the shutdown code. In addition, when the user wants to enter the car to cancel the anti-theft alarm device, the process of delaying the alarm operation can be started remotely to prevent accidental touch of the anti-theft as follows: the infrared signal emission of the anti-theft & body alarm when the anti-theft alarm circuit is turned on The unit is aligned with the anti-theft infrared signal receiving unit, and the function key is pressed to transmit a delay code. After the infrared delay code is decoded and verified by the anti-theft alarm circuit, it waits for 10 m (20 m), and is transmitted by the radio wave of the anti-theft alarm circuit. Single delay; confirmation code signal, the portable alarm device received delay, when the number l ', four sounds will be confirmed; when the aforementioned waiting period: after the expiration of the timer, the anti-theft alarm circuit again: double door entry Ιι λ In the anti-^^ state, but when the waiting time period, the owner turns on the time delay (the default delay alarm time is 30 seconds), and the key is turned off during the late alarm time period. Second, after the delay alarm expires, the burglar alarm: The burglar alarm is activated. The video camera is triggered as described in the above. [Embodiment] Road This creative example mainly includes a group of mechanical locks and a group of anti-theft alarm circuits.

Ref. 5049PUA 9 M274284, and, and the portable piano that matches the anti-theft alarm circuit. Among them, as shown in the first and second figures attached below, the lock has a lock structure of 1 °, one = soil, and its structure is tied to the lock body. The top cover includes a steering wheel lock sleeve 13 'as described in the second embodiment, and two ^, Λ in the lock lock seat 12; the β buckle 15 is matched, and the second part extends below the lock body 11 = body t lock knot When the steering wheel lock sleeve 13 set buckle = the recessed tiger mouth of the steering wheel lock sleeve 13 is exactly: on the spoke 52 of the pin, and then inserted with the two ends of the buckle 15 "^ Jack 14, and the long rod body 18 of the lock is extended on the driver's face because 1 lock is locked on the steering wheel to limit the steering wheel rotation = = the anti-theft alarm is activated at the same time as the lock 1 is locked = = pressure A strong anti-theft alarm is issued when a change or an object is moved = the flash deterred the small night, and the anti-theft alarm signal was transmitted to the portable alarm device of this group of independent peripherals. … The ankle power ^ bluffing and ^ See the third picture 'The burglar alarm circuit is based on-burglar detection signal ^ operation' When the abnormal signal of the burglar alarm condition is triggered, the invitation circuit :! huge The alarm sound and strong flash deter the thief, and at the same time, it will send a warning signal to the portable alarm device via the helmet line == unit to give the necessary treatment of timeliness to achieve the effectiveness of warning theft; it has a power supply Source; power supply is switched on and off, and power-on and hold-off circuit Γ = Central Processing Unit (CPU); it CPU is a programmable operation; two = = = cpu outputs alarm sound signal after boosting to drive the material = sound sound忒 The low-voltage detection circuit includes a low-voltage measurement 丨 C (such as N TAP s ic) triggers a signal to the CPU when the voltage is insufficient; the indicator is controlled by the company's flashing every specific interval during startup On once (for example, to indicate that the burglar alarm circuit operates normally; in addition, the burglar alarm circuit also operates

Ref. 5049PUA 10 M274284 includes a pressure change detection unit and a-and-radio wave transmitting unit, among which the wave is measured early 70 ,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,: ,,,,,,,,,,,,,,,,,,,,,,,,,, and ,,,,,,,,,,,,,,,,,,,,,,,- The transmitting unit includes-voltage stabilization circuit, -encoding circuit, one withering circuit, one with, flat phase, and return to change * ⑬ fundamental frequency vibrating circuit,-3 times frequency circuit,-9 frequency circuit: m skin circuit,- Promote the power amplifier and the _ wheel: In a big state, the voltage stabilization circuit can put the energy source of each circuit in the circuit of the prostitute prostitute, and borrow this code, flat horses, and the frequency of the modulation circuit. Frequency oscillating back: After the carrier processing of frequency = 9 times the frequency loop, it is connected to the band-pass chirped circuit to amplify the amplifier and output the power amplifier to output the radio signal. The milk pressure change detection unit is based on the inside of the car. The air pressure change signal of the space works. As known, the air pressure signal of the interior space of the car has positive pressure and negative pressure (greater than the environmental pressure at the time of reporting 'or less than the environmental pressure at the time). For example, when the door is closed, the pressure is when the door is opened. Negative pressure The pressure change detection unit is always reading the positive pressure signal and the negative pressure signal. When the negative pressure has a signal and no positive pressure signal, the alarm is triggered. When there is a positive pressure and no negative pressure, the negative pressure signal is in the positive pressure signal. Do not read within 200ms after canceling, and set accordingly to reduce the false positive of the positive pressure caused by the strong air flow outside the vehicle, so as to improve the accuracy of the pressure change detection circuit. As shown in the fourth figure, the pressure change detection unit includes: a power filter circuit, a power voltage stabilization circuit, a pressure sensing circuit, a low-pass amplifier, a positive and negative wave comparison circuit, and a sensitivity adjustment circuit. The power is input by the power filter circuit, and filtered by a capacitor to supply the power voltage stabilization circuit. The pressure detector of the pressure sensing circuit is best to use a condenser microphone (Condenser microphone). When the doors and windows of the car are opened, the air pressure in the car's interior space changes instantly. The air pressure sensing circuit converts this air pressure change into an electronic signal, amplifies the signal through the low-pass amplifier, and then the positive The negative wave comparison circuit detects positive and negative signals, and then outputs the positive and negative signals to the central processing unit CPU through amplification processing. Finally, the central processing unit CPU executes preset anti-theft warning steps based on the signals. . In addition, a sensitivity adjustment circuit with a variable resistor as a main component is also provided on the air pressure change detection unit.

Ref. 5049PUA 11 M274284 This ultrasonic detection unit is a body that uses the-ultrasonic emission unit to send the signal from the moving object receiving unit in the vehicle space to the vehicle space and analyzes and processes it. When the abnormal signal of the burglar alert condition is triggered, the alarm sound will deter Xiao Xiao, to achieve the effectiveness of warning theft. The s-report circuit sends out a huge one as shown in the fifth figure, 'The ultrasonic pre-measurement unit and an ultrasonic receiver; among them, the ultrasonic-super 3 wave hair shot # 一 讯 讯 施 施 茵 EU. ^ 知 对 σ卩 Has a high-frequency oscillation circuit, a flood amplifier, and an ultrasonic transmitter; while the sound wave receiver, amplification circuit, detection circuit, ultra-low frequency circuit, ultra-low frequency Π amplification circuit, high-pass amplification circuit, and signal: circuit. In operation, in the ultrasonic wave transmitting section: the high-frequency vibration ==, KHZ, reversed by the signal driving circuit == two limit 疋 power (electrical. 〇, and then the ultrasonic transmitter transmits ultrasonic waves to the interior space of the vehicle

And in the ultrasonic receiver: the ultrasonic receiver receives the ultrasonic signals reflected by the space objects in the car. These reflection signals are amplified by the A signal and then processed by the detection circuit and the filter circuit. 0 == The large circuit will The low-frequency signal is amplified, and at the same time, the 30HZ signal is cut off by the low-pass amplification circuit, and the high-frequency amplification circuit is used to cut off the wave frequency signal below 1 > 5HZ. If the signal is missing, the signal comparison circuit processes it and outputs it to the central processing unit CPU for program identification. The width at the time of the south potential. The width is less than 5 and is not recognized. It is equal to more than 5ms ^^ Cumulative number of times. The accumulated number of times it is stored every 1.5 seconds is counted. After judging, the record will be cleared. If it is equal to or greater than 16 times, it will alarm, and if it is less than 16 times, it will not alarm. In addition, the ultrasonic receiving section is also provided with a variable resistance-based adjustment circuit. As shown in the sixth figure, the infrared receiving unit includes an infrared receiving diode circuit, an amplification circuit, a signal comparison circuit, and a signal delay widening circuit. The infrared receiving diode circuit can receive signals from The infrared signal sent by the portable warning device, after the signal is subjected to three-stage amplification by the amplification circuit and the signal comparison circuit is processed, the signal is delayed to widen the circuit amplification to increase the wave width of the signal for program decoding, and then

Ref. 5049PUA 12 .M274284 is output to the central processing unit CPU for program identification. The operation and portable warning device is equipped with the aforementioned anti-theft alarm circuit and the circuit can be connected to an external charging device for charging (u). Haipu is a programmable computing processor with a negative light, indicator, alarm sound access memory, Clear the alarm, battery low alarm ^, power saving control and other sequential work; and the vibrating disk circuit (0sc) is a low voltage test for the cp back pressure detection circuit | C a vibrating = trigger signal when the house is insufficient The CPU; the warning sound returns ^^ The electric buzzer (BUZZER) emits a sound; the LCD display screen; ^ = controlled by; can display the anti-theft warning signal on the LCD screen:: The circuit also works with the CPU to run nm — In addition to the monthly control ^ ^ 4 electric control, the road can be in the state of the aforementioned anti-theft alarm circuit is in the state of shutdown, so that the overall portable alarm device for the basic power of the CPU operation, and turn off the red emission unit to the anti-theft The alarm circuit sends out the password pairing of the red-disk road booting procedure, or remotely activates the anti-theft alarm circuit to delay the operation of the report; In addition, it shows a group of radio wave receiving units, including Ding Yiding Dagger 3 and the radio wave receiving unit Contains a receiving antenna circuit, a high-frequency amplification circuit, two-band-pass filter circuits, a local oscillation circuit, a mixing circuit, and an intermediate frequency filter and two intermediate frequencies. The receiving antenna circuit can adjust the resonant receiving frequency to receive the receiver. Frequency w, the high-frequency carrier received by the antenna is amplified and filtered by the high-frequency amplification circuit, band-pass filter circuit, and then cross-linked to the high-frequency material; the local vibration gain circuit has a fundamental frequency chirp circuit and a 9-fold frequency amplifier circuit A The 9-frequency ㈣ loop will generate another oscillating frequency signal and cross-link to the mixing loop; and the mixing loop can mix two kinds of signals, mix to generate an IF signal, and pass the IF signal through the IF filter The converter is connected to the first intermediate frequency 1C; the second intermediate frequency 丨 C filters, detects, amplifies and compares the input intermediate frequency signal and outputs it to the central processing unit CPU for program identification. This creation is the same as the previous configuration, and it will be further explained with the flow chart in Fig. 8I that the anti-theft alarm circuit and the portable t-display cooperate with each other as follows:

Ref. 5049PUA 13; M274284 'In the initial state, the anti-theft alarm circuit is shutting down, and the portable device is out of the factory, crying in power saving mode, and in the power saving mode, the portable alarm device can still receive the theft alarm circuit The signal, just does not display the LCD graphics to save power; go = said the anti-theft alarm circuit is activated after the start, and issued a long warning, and enter ^ low power = detect, program, and sent by the radio wave transmission unit to start Signal, after receiving the power-on code, the follower enters the power-on response and is in the power-on state. · Front = During the machine, if the voltage detection result of the anti-theft alarm circuit is low voltage, then a tri-bass warning will be issued. And the radio wave transmitting unit sends the start-up signal No. 2 while transmitting the signal of the anti-theft alarm circuit as a low voltage, and after the boot-up alarm receives the boot code, it enters the boot-up reaction and simultaneously displays the anti-theft alarm circuit as power ^ Sufficient information, to continue the aforementioned boot-up procedure, the anti-theft alarm circuit further executes a 30-second delay procedure to allow users to leave the car with sufficient time The action of closing the door, meanwhile, the anti-theft alarm circuit and the portable alarm device perform two-way password pairing within 30 seconds of the out-of-service delay. These passwords have more than 100,000 sets written in the program. The portable alarm operation is set in the pairing mode, and its infrared signal transmitting unit is aligned with the infrared signal receiving list of the anti-theft alarm circuit to automatically learn and pair with each other; After the password pairing is completed, the anti-theft alarm circuit enters The state of the anti-theft alert, _ and test the car owner ’s location at 10 minutes. The portable alarm is trusted. That is, the test code signal is sent by its radio wave transmitting unit at 10 clocks. If the portable alarm receives the test normally, When the code signal is sent, a short warning sound will be issued and the LCD will display the graphics in the connection. In the gold alert state, 'when the detection unit of the burglar alarm circuit is touched, the alarm time will be immediately flashed, 0 seconds flash, and the alarm sound will be issued, and at the same time, it will transmit RF alarm code signal by its radio ?, After receiving the RF alarm tick, the portable alarm device also enters the anti-theft alarm operation and displays an abnormal signal on the LCD. After the anti-theft alarm circuit operates the anti-theft alarm, if it is not turned off or unlocked with a key, it will re-enter the anti-theft alert state when the set alarm operation time is reached, and if it is turned off with a key, the anti-theft is immediately turned off. Alarm circuit for electricity

14 Ref. 5049PUA M274284 · The source stopped working and was sent by its radio wave transmitting unit at the same time The portable alert n received the shutdown code and entered the power saving mode. , "... 'Qin 1f ^ Γ When a user wants to enter a car to cancel the anti-theft alarm device, it can be remotely activated. The operation flow is shown in the ninth figure: In the anti-theft alarm circuit = anti-theft: warning state, Using the infrared signal transmitting unit of the portable alarm device:

The electric infrared signal receiving unit of the electric key, the function key transmitting delay outside line delay code is decoded by the electric alarm circuit after the mosquito is broken J ^ h (the preset waiting time is 2 (3 seconds), and at the same time the benefit of the anti-theft alarm circuit = > :: two: = small: delayed confirmation code signal of force rate, the portable alarm: delay; p: theft = when untouched, after the waiting time expires, the == returns to the anti-theft after entering the boot again In the alert state, but when the waiting word ^ = 'the owner opens the door and enters the car and touches the anti-theft detection unit, the I report' road will enter the delay alarm timer (the default delay alarm timer is 30 seconds), 2 must be here Delay f report material __ α material setting, otherwise after the delay alarm expires, send the anti-theft alarm operation as described above. The report circuit will touch [Schematic description] I The first picture is a three-dimensional view of this creation ; The second picture is a side view of a cross section of the lock that is fixed on the steering wheel of the car. The third picture is a functional block diagram of the anti-theft alarm circuit of this work. The function of the ultrasonic detection unit Block diagram; The sixth diagram is a functional block diagram of the infrared receiving sheet it of the present creation; the seventh diagram is a functional block diagram of the portable alarm device of the present creation; the eighth diagram is a flowchart of the operation and matching of the anti-theft alarm circuit of the present creation; Timely < interim prevention

Ref 5049PUA 15 M274284 The ninth picture is a flowchart of the operation of the delay alarm between the anti-theft alarm circuit and the portable alarm. [Description of main component symbols] Lock 1 Lock body 11 Buckle lock base 12 Steering wheel lock sleeve 13, Lock plug jack 14 Buckle check 1 5 Long rod body 18 Steering wheel ring 51 Steering wheel spoke 52

16 Ref. 5049PUA

Claims (1)

M274284 9. Scope of patent application: 1. A mechanical anti-fault and lock on the steering wheel of a car with an anti-theft alarm device. The lock includes a group that can be fixedly locked in the group and can be connected with the anti-theft alarm circuit. Report circuit: and-the circuit is based on an anti-theft detection signal; gold, light deter thieves, the same;:;,! =; Large alarm sound and strong flashing The necessary treatment of sex is based on the two ϊ ... 'allows the user to make timely mistakes and prevent burglary. It is characterized by: An eighth long rod body and a buckle lock are provided on the lock body. Seat and a lockable steering wheel lock buckle sleeve locked to the lock body, where the buckle 4 矣: two f circuit components of the aforementioned anti-theft alarm circuit, the steering wheel lock: a mouthpiece, the side section is slightly C-shaped And the cover layer of the buckle is provided with a recessed recess = and the steering wheel lock sleeve can be locked on the wheel of the steering wheel when the lock is locked and the tiger's mouth of the CJ in the cover layer is placed on the steering wheel. On the spokes, the lock can start the anti-theft alarm circuit at the same time when it is locked. The anti-theft alarm circuit has a programmable central processing unit CPU and at least includes a pressure change detection unit. The pressure change signal is sent, which has a pressure sensing circuit and a positive and negative wave comparison circuit. The pressure detector of the pressure sensing circuit can monitor the instantaneous change in the air pressure in the space of the car and transfer the monitoring information. Electronic signal The signal is processed by the positive and negative wave comparison circuit and output to the central processing unit CPU for interpretation. When there is only a negative pressure signal and no positive pressure signal, an alarm is triggered. 'When there is positive pressure and no negative pressure, the negative pressure signal is generated. Do not read within 200ms after the positive pressure signal disappears, and set accordingly to reduce the false positive of the positive pressure caused by the strong air flow outside the vehicle to improve the detection accuracy of the pressure change detection circuit; an ultrasonic detection unit ， Using ultrasound to detect moving objects in the car space 17 Ref. 5049PUA M274284 It operates with a body signal. An ultrasonic transmitting unit sends out an ultrasonic signal to the interior space of the vehicle, and then uses an ultrasonic receiving unit to read the signal, analyze and process it, and then output it to the central processing unit (CPU) for determination. Among them, the ultrasonic transmitting The unit has a high-frequency oscillating circuit, a signal driving circuit, and an ultrasonic transmitter, and the ultrasonic receiving unit has an ultrasonic receiver that can receive ultrasonic signals reflected by objects in the space in the vehicle. Signal amplification circuit, a detection circuit, a filter circuit, a low-frequency amplification circuit, a low-pass amplification circuit to cut off signals above the limited frequency, a high-pass amplification circuit to cut off signals below the limited frequency, and Signal comparison circuit. The central processing unit CPU determines the program width. When the signal is at a high potential, the width is less than 5ms and is not recognized. If it is greater than 5ms, the accumulated number is stored. The accumulated number of times is stored every 5 seconds. Judge. After judging, clear its record. If it is equal to or greater than 16 times, it will alarm. If it is less than 16 times, it will not alarm. An infrared receiving unit is used to receive the infrared howling signal sent by the portable alarm and process it to the central processor. cpu for program discrimination, which has an infrared receiving diode circuit, an amplification circuit that can make the signal a three-stage amplification, a signal comparison circuit, and a signal delay widening circuit;-: ... a line radio wave transmitting unit having- The material can supply power to the circuits of the circuits, a coding circuit, a modulation circuit, a fundamental frequency, a 3-fold frequency loop, a 9-fold frequency loop, a band-pass loop-back Mw power amplifier and An output power amplifier Α 11 will output the encoded radio signal; it will display a ^ FT I? ^ Into / ..., a private central processing unit CPU, and at least shown on the LCD screen Control: 2: Second: When the anti-theft alarm circuit is turned off, the overall portable alarm device is in a power saving mode, and only the basic power for the operation of the CPU Ref. 5049PUA 18 M274284 is provided, and And closing the LCD screen to save power consumption Second, the line signal transmitting unit can send an infrared signal to the anti-theft alarm circuit for password matching of the boot-up procedure of the anti-theft alarm circuit, or remotely start the anti-theft alarm circuit to enter the radio wave receiving unit for receiving The radio Λ number is processed and output to the central processing unit CPU for program identification. It has an adjustable resonant receiving frequency to receive high-frequency signals. ^ Receiving antenna circuit, -High-frequency amplification circuit, -Band pass filter circuit, : Local oscillation circuit, a mixing circuit, an IF filter, and a first operation. When the lock is activated, the anti-theft alarm circuit is activated by the lock. The t-wave transmitting unit sends a start-up signal. After receiving the power-on code, the radio f receiving unit “enters the power-on response and is in the power-off state, and then the anti-theft alarm circuit further executes a delay period f of the vehicle owner leaving the vehicle, and at the same time the anti-return circuit and the portable alarm device It also uses its infrared signal transmitting unit, infrared signal receiving unit, and radio wave transmitting unit. The receiving unit performs password pairing for bidirectional transmission. After the password pairing is completed, the anti-theft alarm circuit enters the state of anti-money ring. In the anti-theft alarm state, when the detection unit of the anti-theft alarm circuit is triggered, it will immediately alarm. The timer flashes and sounds an alarm sound. At the same time, its radio wave transmitting unit outputs an RF alarm code signal. When the portable alarm device receives an RF signal, it also enters the operation of the anti-money report and displays an abnormal signal on the LCD. After the alarm circuit is not activated, if the alarm is not turned off or reset, the alarm will be re-entered until the set alarm time is reached. If the alarm is turned off, the alarm will be turned off immediately. The electric circuit of the electric circuit is reported, and the shutdown signal is sent by its wireless wave-free transmitting unit. After receiving the shutdown code, the portable alarm device enters the power saving mode; In addition, when the user wants to enter the car to release the anti-theft When the alarm device is activated, the anti-theft alarm circuit can be remotely activated to enter the program for delaying the alarm operation to avoid accidental touch. Ref. 5049PUA 19; M 274284 · Anti-cup alarm system, which is in the state where the anti-theft is running out, with the red of the body: ί The infrared signal receiving single-circuit of the anti-theft alarm-receiving circuit that is turned on: Single wire delay code passes the anti-theft alarm circuit Decoding check to be timed 'When the aforementioned waiting time period is anti-binary μ 2 The alarm circuit returns to the anti-theft alarm when it is turned on. During the waiting time period, when the owner opens the door and enters the anti-theft detection unit inside the car, the anti-theft alarm circuit will enter the delay alarm, and the user must delay here. Turn off the key with the key during the alarm timing period: Unset the anti-theft alarm circuit. Otherwise, after the delay alarm expires, the anti-theft alarm circuit will trigger the anti-theft alarm operation as described above. A steering wheel lock for an automobile with an anti-theft alarm device as described in item 1 of the scope of the patent application, which further includes a sensitivity adjustment circuit with a variable resistor as a main component on the air pressure change detection unit. 3. The steering wheel lock for a car with an anti-theft alarm device as described in item 1 of the scope of the patent application, wherein the pressure detector of the air pressure change detection unit is a condenser microphone (CONDENSER MICROPHONE). 4. The steering wheel lock for an automobile with an anti-theft alarm device as described in item 1 of the scope of patent application, which also includes a sensitivity adjustment circuit with a variable resistor as a main component on the ultrasonic receiver. 5049PUA 20