KR100384526B1 - Apparatus for preventing a car theft using mobile telephone system - Google Patents

Abstract

An alarm system is provided that transmits a text message to the mobile communication terminal such as a driver's mobile phone. According to the present invention, by detecting an external shock to generate an electrical signal that changes according to the external shock amount, and converts the electrical signal into a voltage value converted to a digital value and then output with a unique code value of the pre-allocated shock sensor Wealth; A panel unit including a display lamp, an operation release button and a setting button; An output terminal of the impact sensor unit and an operation release / setting key signal output terminal of the panel unit are connected to an input terminal, and a code value corresponding to the predetermined value is generated when the input digital shock amount is compared with a predetermined shock threshold value. And a microprocessor for outputting the code value together with the mobile phone number of the user stored in advance. Provided is a vehicle antitheft device including an impact amount signal transmitting unit for transmitting an impact amount signal output from the microprocessor to a cell phone communication band frequency. The apparatus of the present invention further includes a remote controller for generating and wirelessly transmitting a key signal corresponding to the operation release button and the setting button, and a remote control receiver for remotely receiving operation setting and release signals transmitted from the remote control.

Description

Anti-theft device using a mobile phone {Apparatus for preventing a car theft using mobile telephone system}

The present invention relates to a vehicle antitheft device using a mobile phone.

Currently, 800,000 new cars are registered every year, and 30,000-40,000 cars are stolen and damaged by others, but there is no device that can be prevented except for the individual's attention. Moreover, the recent high unemployment and unstable social phenomena are increasing the number of professional thieves and shoplifters who participate in theft of automobiles.

Conventional vehicle anti-theft device is generally combined with a remote starter device to sound the alarm siren in response to detecting the impact of the car, such a device is only a warning sound to the thief.

The anti-theft device as described above simply informs the state of the vehicle by the alarm sound according to the presence or absence of a shock, so that the owner cannot detect the alarm sound when the vehicle is far from the vehicle, but rather damages the surrounding people by noise. Has the disadvantage of giving.

In addition, when a GPS (global positioning system) is installed in a vehicle, the stolen car can be tracked using satellites using the satellite, but this also requires a large installation cost, which is a significant obstacle to the spread of the device.

Therefore, once stolen, there is no way to find one's own car. Therefore, the driver or the owner of the car is always in a hurry to protect the car and get auto insurance. In the case of auto insurance, the separately installed option is not recognized, so once the car is stolen, the damage is severe and the material and mental damage is great.

Accordingly, it is an object of the present invention to provide an apparatus that can most effectively prevent theft accidents that may occur when.

The present invention provides an alarm system for transmitting a text message of the impact of the vehicle to a mobile communication terminal such as a driver's mobile phone.

According to the present invention, the external shock is detected to generate an electrical signal that changes according to the external shock amount, and converts the electrical signal into a voltage by a converter, and converts this value into an A / D converter and converts it into a digital value beforehand. An impact sensor unit for outputting with the unique code value of the assigned impact sensor; A panel unit including a display lamp, an operation release button and a setting button; An output terminal of the impact sensor unit and an operation release / setting key signal output terminal of the panel unit are connected to an input terminal, and a code value corresponding to the predetermined value is generated when the input digital shock amount is compared with a predetermined shock threshold value. And a microprocessor for outputting the code value together with the mobile phone number of the user stored in advance. Provided is a vehicle antitheft device including an impact amount signal transmitting unit for transmitting an impact amount signal output from the microprocessor to a cell phone communication band frequency.

Preferably, the device of the present invention remotely receives a remote control for generating and wirelessly transmitting a key signal corresponding to an operation release button and a setting button, and an operation setting and release signal of the vehicle antitheft device transmitted from the remote control. It further comprises a remote control receiver for.

The impact amount signal transmitting unit includes a high frequency oscillator, a frequency synthesizer, a high frequency amplifying unit, and an antenna for use in a typical cellular phone transmitter.

The device of the present invention has the advantage that it is easy to install, and it is possible to construct a complete alarm system at low cost without any maintenance cost such as continuous usage fee.

In addition, even without using a mobile phone and a pager, the vehicle anti-theft device itself has an alarm function, so that the user can foretell theft and help the thief to help theft.

1 is an external view of a vehicle anti-theft device according to the present invention.

2 is a block diagram showing a circuit configuration of a vehicle anti-theft device.

3 is a flow chart showing an operation program of the microprocessor of FIG.

Figure 4 is an external view of a remote control for vehicle anti-theft device operation setting / release.

FIG. 5 is a block diagram illustrating a circuit configuration of the remote controller of FIG. 4.

1, an example of a vehicle anti-theft device according to the present invention is shown. The vehicle anti-theft device of the present invention is divided into a main body portion 10 and an impact sensor portion 20, the impact sensor portion 20 is built in the lower body portion (10).

Preferably, the anti-theft device is mounted in the center fascia of the motor vehicle.

The main body portion 10 also has a front panel portion, which has a reservation button 12, a reservation cancellation button 12 ', a speaker 14, a bell volume control knob 16, an operation indicator lamp 18, and a transmission. An antenna 19 is included.

The impact sensor unit 20 is composed of a shock sensor 22, a sensor circuit unit (not shown), and the impact degree indicator lamp 24.

As well known, the impact sensor 22 causes a small current to be generated by an induction coil installed on the inner outer wall when a small pendulum placed in a free state moved therein by an external impact moves the generated microcurrent. It can be detected by the electric circuit inside the anti-theft device to determine the degree of impact.

2 is a block diagram showing the internal circuit configuration of the vehicle anti-theft device.

The vehicle anti-theft device according to the present invention includes an impact sensor unit 20, a microprocessor 100, a remote control receiver 200, and the impact amount signal transmitter 300.

The microprocessor 100 uses a one chip microcomputer of model number 89C1051, and an output of the impact sensor unit 20 is connected to an input terminal thereof. In addition, the microprocessor 100 is connected to a key signal output terminal of the reservation button 12 and the reservation cancel button 12 'of the front panel.

The remote control receiver 200 is for remotely receiving an operation setting and release signal of the vehicle antitheft device by a remote controller (hereinafter referred to as a remote controller) to be described below. The remote control receiver 200 includes a high frequency amplifier 202, a tuning circuit 204, an AM detection circuit 206, and a waveform shaping circuit 208.

The impact amount signal transmitter 300 transmits the impact amount signal output from the microprocessor 100 in response to the output signal of the impact sensor unit 20 to match the cell phone communication band frequency and together with the user's cell phone number. A high frequency oscillator 304, a frequency synthesizer 302, a high frequency amplifying unit 306 and an antenna 310 for use in a cellular phone transmitter of the antenna.

In the power supply of the vehicle anti-theft device, the input voltage is 12V for cars, 110V or 220V for homes, and the output voltage is DC12V. 3V for shock sensor. The current consumption of the device is 1mA when the sensor is waiting, 50mA when the shock signal is sent and 70mA when the alarm is issued.

The shock amount set as a reference value compared with the digital shock value input from the shock sensor unit 20 in the microprocessor 100 is stored in four stages from S1 to S4.

The frequency band of the impact signal transmitting unit 300 is 800MHz band for the Citiphone, PCS 1.2GHz ~ 1.8GHz band.

The appearance of the remote controller is shown in FIG. 4. The remote controller 50 has buttons 52 and 54 for vehicle anti-theft device operation setting / release and a retractable antenna 56.

Referring to FIG. 5, the remote controller 50 includes a key signal generator 501, a flip-flop 502, waveform shaping circuits 503 and 504, a filter 505 and 506, an amplifier 507, and an antenna. 508.

The operation of the vehicle antitheft device as described above will be described below.

The shock sensor unit 20 is usually in the standby state, and consumes a very small amount of current (about 300 μA), and is installed on the inner outer wall when a small pendulum placed in the free state installed in the shock sensor 22 is moved by an external shock. The micro current is generated by the induction coil, and the current flows through the base terminal of the transistor coupled with the impact sensor 22 to drive the sensor circuit. Once the circuit is driven, the short circuit is maintained by the capacitor installed in the circuit. The generated shock amount is converted into a voltage by a converter, and this value is converted into an A / D converter and converted into a digital value, and then the sum of the shock amount converted into the digital value and the shock value of the shock sensor is converted into a digital value. To send.

The reason for giving a unique value to the shock sensor 22 is that the user can selectively install the shock sensor in various places necessary for crime prevention in the case of housing, so that the dip switches are differently installed when the shock sensor is installed. To classify the shock sensor.

The microprocessor 100, which receives the shock amount converted into a digital value, once notifies the outside of the fact that the siren is shocked through the speaker 14, alerting the user and sending an alert to the intruder.

The microprocessor 100 compares the input digital shock amount with the shock amount already set as a reference value by a discriminator programmed in Assembly language, changes the shock value corresponding to the value into a promised code value, and then sets the user's mobile phone initially set. Alternatively, the serial number of the pager is transmitted to the transmitter 300.

The transmitter 300 transmits a radio wave in accordance with a communication band in the vicinity of the repeater.

The transmitted radio waves are delivered to the user's mobile phone or pager according to the communication protocol used by each mobile carrier. Therefore, in order to use a mobile communication service, it is possible to pay a certain fee by contract.

3 is a flowchart illustrating an operation program of the microprocessor 100.

When the power is turned on, the impact amount is input from the impact sensor unit 20 to the microprocessor 100 in step 10.

In step 12, the microprocessor 100 determines a setting / release button key input state of the remote controller or the panel unit at the input terminal. If there is no function release key input, in step 14, the digital impact amount input from the sensor unit 20 is compared with a predetermined fine impact value, and if it is larger than the small impact value, the process proceeds to step 15 to compare with the predetermined predetermined shock value.

If the input shock amount is smaller than the predetermined impact value, go to step 16 to generate a predetermined code corresponding to the weak impact value (Example 010), and in step 18 the code value is stored with the telephone number of the user's mobile phone or pager previously stored. Combination generates serial data and transmits the impact amount signal to the transmitter 300.

In step 15, if the input impact amount is larger than the predetermined impact value, go to step 17 to generate a predetermined code (Example 011) corresponding to the strong impact value and then perform the operation of step 18 above.

The serial data transmitted to the impact amount signal transmitter is transmitted to the user's mobile phone or wireless pager through the mobile communication network to transmit the impact amount instead of the voice using a known transmitter of the cellular phone. Similar to the text service provided by the mobile carrier, the impact amount code signal is displayed on the display of the user's mobile phone, for example, code 011, indicating that "a strong vibration is generated in the vehicle" and a warning sound is generated. The remote control can monitor the state of the vehicle.

When the user does not feel the need for security, you can turn the function on and off with the remote control at any time.

As described above, the vehicle anti-theft device according to the present invention can know whether theft and theft or damage regardless of the distance of the state of the car owned by the user using a mobile phone.

In the present invention, the impact signal transmission may use an additional service of a mobile communication company at a low monthly fee by using an existing mobile communication repeater. Here, even when the vehicle is stolen, there is an advantage that the location of the stolen vehicle can be tracked by using the hand-off function of the mobile phone (finding the current position by the signal difference between the repeater and the repeater).

Unlike other security systems, the anti-theft device of the present invention can be installed in any desired place such as a vehicle and a house as one device to perform a security function.

In addition, when the gas sensor and the temperature sensor is used, the device of the present invention has not only general security but also a gas leakage and fire detection alarm function, so that it can be used as an integrated security system in homes and gas stations. The device of the present invention can provide a crime prevention system having all-weather features that can be assisted by the police and fire departments in the case of emergency and civilian security that the user can carry out security on a regular basis.

Claims (6)

A shock sensor unit that detects an external shock and outputs a unique code value of a shock sensor previously assigned according to an external shock amount; A panel unit including a display lamp, an operation release button and a setting button; A remote controller having a key corresponding to an operation release button and a setting button of the panel unit, and generating a corresponding key input signal and transmitting the signal wirelessly; A remote controller receiving unit for remotely receiving operation setting and release signals transmitted from the remote controller; An anti-theft device comprising a microprocessor operating according to an input signal of the impact sensor unit and a panel unit, and an impact amount signal transmitting unit transmitting an impact amount signal output from the microprocessor to the outside. The remote controller includes a key signal generator, a flip-flop, a waveform shaping circuit, a filter, an amplifier, and an antenna, and the remote controller receiver includes a high frequency amplifier, a tuning circuit, an AM detection circuit, and a waveform shaping circuit. Generates a predetermined code value by comparing the input digital shock amount with a preset shock reference value, and outputs the code value and a mobile phone number of the user stored in advance, and the impact amount signal transmitting unit outputs the impact amount signal output from the microprocessor. Anti-theft device for transmitting to the mobile phone communication band frequency and displaying on the mobile communication terminal through the text service of the mobile carrier. delete delete delete The method of claim 1, wherein the impact reference value includes determining whether the function release key is input and determining whether the impact amount input from the impact sensor unit is greater than a preset fine impact value and the fine impact value is small when there is no release key input. Comparing the predetermined impact value to a predetermined impact value when larger than stationary; generating a code corresponding to the predetermined impact value when the impact amount is smaller than the predetermined impact value; and generating a code corresponding to a strong impact value when the impact amount is smaller than the predetermined impact value. Vehicle antitheft device. The method of claim 1, The impact signal transmission unit is a vehicle anti-theft device, characterized in that it comprises a high frequency oscillator (304), frequency synthesizer (302), high frequency amplification unit (306) and antenna (310) used in a typical mobile phone transmitter.