KR100622933B1 - Digital tachometer having burglar alarm - Google Patents

Abstract

The present invention relates to a digital driving recorder equipped with a burglar alarm for preventing theft of a parked vehicle, wherein the digital driving recorder, cellular phone communication device, and burglar alarm contained therein communicate with each other from any one of the elements. If the RF signal does not occur normally or if any element does not receive the RF signal, it generates an alarm sound and notifies the user of theft attempt to the vehicle through the remote controller and the mobile phone. Also, parked cars cannot be stolen easily.

Car, Theft, RF Signal, GPS, Tachometer, Digital, Mobile Phone

Description

Digital Driving Recorder with Burglar Alarms {DIGITAL TACHOMETER HAVING BURGLAR ALARM}

1 is a schematic diagram of a digital driving recorder equipped with a burglar alarm according to an embodiment of the present invention.

FIG. 2 is a detailed view of the digital recorder of FIG. 1.

3 is a block diagram showing the format of an RF signal according to an embodiment of the present invention.

4 is a look up table of an RF signal according to an embodiment of the present invention.

<Brief Description of Major Codes in Drawings>

101: GPS receiver 102: detector

103: RF transceiver 104: liquid crystal display

105: interface unit 106: power supply unit

107: central processing unit 108: driving unit

109: memory 100: digital driving recorder

110: mobile phone 120: mobile phone communication

130: remote controller 140: theft alarm

141: theft alarm control unit 142: shock detection unit

143: car hood locking unit 144: alarm sound generating unit

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a digital driving recorder of a motor vehicle, and more particularly, to a digital driving recorder having a burglar alarm for preventing theft of a parked car.

Recently sold cars are equipped with a digital driving recorder that records the current driving state of the car, and, according to the choice of the car buyer, a car burglar alarm may be further installed to prevent theft of the car. Here, the digital driving recorder records only information such as driving time, driving speed, driver's name, and car number in the memory, and the car burglar alarm generates an alarm sound when the car attempts to be stolen. Since conventional digital drive recorders and car burglar alarms are not electrically or mechanically connected, each operates independently.

Conventional car burglar alarms do not distinguish whether a condition applied to a parked car is an attempt to be stolen, is simply a tremendous impulse or an attempt to be towed. In addition, the conventional car burglar alarm does not inform the owner of the car when the state of the parked car (theft, shock, traction) changes. Thus, if a conventional burglar alarm is removed from a car in a relatively short time, i.e., when the alarm sounds, then the car can be easily stolen because the burglar alarm is no longer generated from that point on.

On the other hand, even if the digital driving recorder operates in the stolen car, the digital driving recorder does not inform the outside that the car to which it is attached has been stolen, unless the digital driving recorder is checked.

Therefore, the conventional burglar alarm has a problem that can not effectively prevent theft of the vehicle.

SUMMARY OF THE INVENTION An object of the present invention is to provide a digital driving recorder having a burglar alarm that detects theft of a vehicle, generates a burglar alarm, and notifies the owner of the vehicle.

Another object of the present invention is to provide a digital driving recorder equipped with a burglar alarm that detects theft of a vehicle, generates a burglar alarm sound, and informs the owner of the burglar through a remote controller and a mobile phone.

To this end, a digital driving recorder equipped with a burglar alarm according to the present invention is installed in a vehicle interior, generates a first high frequency (RF) signal, receives another high frequency signal and records the current driving state of the vehicle. 100 and a hood of the vehicle, generating a second high frequency (RF) signal, receiving the first RF and other ultra high frequency signals, and wirelessly communicating with the digital driving recorder 100, A burglar alarm 140 for detecting a burglar state of a vehicle and generating a burglar alarm sound, and installed inside the vehicle, generating a third ultra high frequency (RF) signal, and receiving the first and second RF signals; A mobile phone communicator 120 which wirelessly communicates with the driving recorder 100 and the burglar alarm 140 and informs the state of the car to a mobile phone or cellular phone 110 of the car owner; Remote controller 130 for generating a high frequency (RF) to set the stolen operation state of the vehicle to the digital driving recorder 100, and receives the first RF and the second RF to inform the car owner of the stolen state of the vehicle. It is achieved by carrying out including.

1 is a schematic diagram of a digital driving recorder equipped with a burglar alarm according to an embodiment of the present invention, which is installed in an automobile interior, generates a first high frequency (RF) signal, receives another high frequency signal, and shows a current driving state of the car. Digital driving recorder 100 for recording and installed in the hood (not shown) of the vehicle, generating a second high frequency (RF) signal and receiving the first RF and other ultra high frequency signals, the digital driving recorder And a burglar alarm 140 wirelessly communicating with the vehicle, detecting a burglar state of the vehicle, and generating a burglar alarm sound, and installed inside the vehicle, generating a third high frequency (RF) signal, and generating first and second RF signals. A mobile phone communicator 120 which receives and wirelessly communicates with the digital driving recorder 100 and the burglar alarm 140 and informs the state of the car to the mobile owner's mobile phone or cellular phone 110; 4 seconds Generates a wave (RF) to set an operating state (theft operating state) when the car attempts to be stolen on the digital driving recorder 100, and receives the first RF and the second RF to inform the car owner of the stolen state of the car. Remote controller 130 is included.

Here, the burglar alarm 141 generates a second RF and receives first, third, and fourth RF signals to wirelessly communicate with the digital driving recorder 100, the cellular phone communicator 120, and the remote controller 130. Anti-theft alarm control unit 141, the impulse detection unit 142 for detecting the impact of the vehicle and transmitting the detected shock signal to the anti-theft alarm control unit 141, and the anti-theft alarm control unit 141 by locking the car hood The vehicle hood locking unit 143 and the alarm signal generating unit 144 for generating a burglar alarm sound to notify that the car has a theft attempt in accordance with the control signal of the burglar alarm control unit 141.

The digital driving recorder 100 receives a power supply unit 106, a central processing unit 107 for receiving power from the power supply unit 106 and controlling each element electronically, and detecting the current state of the vehicle in the central processing unit 107. A detector 102, an RF transmitter 103 for generating a first RF and receiving second, third, and fourth RFs, and a liquid crystal display for displaying an operating state of a vehicle under control of the central processing unit 107 ( 104, a memory 109 for continuously recording the driving information of the vehicle under the control of the central processing unit 107, and a GPS signal sent by the GPS (GPS) satellite to receive the current speed information and driving of the vehicle. GPS receiver 101 for calculating coordinate information and current time information and transmitting the same to the central processing unit 107, a driving unit 109 for driving a vehicle under control of the central processing unit 107, and an interface for communicating with an external device Part 105 is included.

The detection unit 102 includes a seat belt detector for detecting a state of engagement of the seat belt, a brake detector for reading a brake operating state, a speed detector for detecting a running speed of a vehicle, and a rotation speed detector for detecting a rotation speed of the engine.

In addition, the interface unit 105 includes a USB interface for transmitting vehicle driving information stored in the memory 109 to a personal computer or a mobile communication unit under the control of the central processing unit 107, and a central processor installed inside the vehicle. And a CAN interface to connect the central processing unit 107 and communicate with each other.

Meanwhile, the RF transceiver may receive an RF signal containing vehicle speed limit information and idle limit information.

The driving unit 108 controls the amount of fuel supplied to the engine under the control of the central processing unit 107 to control the engine speed or the running speed, and the stepping motor controller to display the engine speed or the speed of the engine to the outside. It consists of. Here, the engine control unit includes a fuel control unit for outputting a fuel control signal, and a braking unit for effectively decelerating the traveling speed by performing engine braking.

On the other hand, the remote controller 130 according to the present invention further includes a function that can remotely start the car, lock or open the car door and the trunk, and operate to generate a predetermined sound or vibration. In addition, the mobile phone communicator 120 according to the present invention is a device that is capable of communicating in a code division multiple access (CDMA) method, and is capable of communicating with a CDMA mobile phone 110. .

In the digital driving recorder equipped with the burglar alarm according to the present invention, which is configured as described above, the structure of the RF signal for wireless communication between the respective components is as follows. As shown in FIG. 3, the format of the RF signal according to the embodiment of the present invention includes a head, a setting code, an address, data, and a CRC. In the embodiment of the present invention, the address is 8 bytes, the data is 3 bytes, and the CRC is 1 byte. Here, the setting code is the part allocated to set the type of data, the address is the part allocated for the unique number of the car, the data is the part indicating the type of the operation state of the car, and the CRC is the part for checking the error. .

4 is a look-up table of the RF signal according to an embodiment of the present invention, and is stored in the memory 109 of the digital recorder 100.

As shown in the figure, the search table stores the vehicle identification number as a binary code in the address field, the current state of the vehicle such as theft, towing, shock, etc. in the data field, and a binary code in the CRC field. Predetermined binary codes are stored for getting more errors.

On the other hand, the memory 109 stores the current operation record table for recording the current operation status in a certain time unit, and the storage data for encrypting and storing the data stored in the current operation record table. Here, the current driving record table has items such as date, driver name, product serial number, vehicle number, engine speed, vehicle status, speed, time and GPS coordinates. Data for storage means data stored by encrypting the current service record table before transmitting the current service record table to be transmitted to a personal computer or a mobile communication terminal through a USB interface.

According to the present invention configured as described above, the operation state of the digital driving recorder equipped with the burglar alarm will be described with reference to the drawings.

First, in order to operate the digital driving recorder equipped with the burglar alarm according to the present invention, information about a vehicle corresponding to the digital driving recorder 100 and the owner of the vehicle is set using the remote controller 130. Soon, the car owner enters information such as a car number into the digital driving recorder 100 while looking at the liquid crystal display 104 while the car key is in the start position ON of the car key box. Register a password (authentication key). Then, when it is removed from the car key box and the car door is locked, the car is in the anti-theft operation state.

When the anti-theft state is reached, the digital driving recorder generates a radio signal indicating the state of the digital driving recorder every 0.1 seconds. Soon, the digital driving recorder 100 generates a first RF indicating the state of the digital driving recorder, and receives the second and third signals. Burglar alarm 140 generates a second RF and receives first and third RF. The cellular phone 120 also generates a third RF and receives first and second RF signals. At this time, the remote controller 130 receives the first, second and third RF signals.

In this way, when each component generates its own RF and receives the RF signal from the other component, the parked vehicle remains in the original parked state.

However, if the car has theft attempt, the operation of the digital driving recorder equipped with theft alarm is as follows.

1) Theft Attempts:

If a parked car does not receive an RF signal from another component from any component from its normal state without any impact from the outside, each component will return its own lookup table (LUT). Refer to this to determine the state of the current event. In other words, if each element does not receive an RF signal from another element for a predetermined time, it is determined that the vehicle has theft.

(1) When a car thief tries to remove a digital recorder, the cellular phone communicator informs the car owner that there is an attempt to steal the car through the cellular phone. At the same time, the burglar alarm notifies the theft attempt by transmitting an RF signal to the remote controller while generating an alarm sound through the alarm sound generator. Then, the remote controller makes a warning sound or vibrates to inform the owner of the car.

(2) In the case where the cellular phone communicator is to be removed, the digital navigation recorder transmits an RF to the remote controller to indicate that theft is attempted. At the same time, the burglar alarm generates an alarm sound through the alarm sound generating unit, and transmits an RF signal to a remote controller, such as a digital driving recorder, to inform that theft is attempted. Then, the remote controller makes a warning sound or vibrates to inform the owner of the car.

(3) When theft alarm is to be removed, the alarm sound generator generates an alarm sound. In other words, since the burglar alarm is installed in the hood, when the car thief forcibly opens the hood, the car hood locking unit causes the alarm sound generating unit to generate an alarm sound through the burglar alarm control unit. Eventually, when the burglar alarm is removed, the digital navigation recorder generates an RF signal to inform the remote controller and the cellular phone communicator of theft attempt. Then, the remote controller makes a warning sound or vibrates to inform the owner of the car. In addition, since the cellular phone communicator does not receive the RF signal from the digital driving recorder or the RF signal from the burglar alarm, it determines that the vehicle has theft attempt and notifies the cellular phone 110 that the vehicle has theft attempt.

Thus, the car owner notices that his car is currently attempted to steal from the signal transmitted from each element.

2) Shock detection

When a shock of a predetermined magnitude is applied to the parked car, the shock detector 142 of the burglar alarm detects and sends the detection signal to the burglar alarm control unit 141. Then, the burglar alarm control unit 141 finds the corresponding data in the preset lookup table and transmits an RF signal to the cellular phone communicator. The cellular phone communicator then transmits an RF signal to the cellular phone. Thus, the car owner can know that a certain shock is currently being applied to the car.

3) towing detection

Even though the parked car is not impacted and the elements such as the digital driving recorder, the cellular phone communicator and the burglar alarm operate normally, when the position of the parked car changes, the digital driving recorder generates a corresponding RF signal. Soon, the digital driving recorder receives GPS signals from GPS satellites, stores the location where the vehicle is currently parked, changes its location, finds the corresponding data in the lookup table, and transmits the corresponding RF signal to the cellular phone communicator. The portable switching communicator then transmits a signal corresponding to the cellular phone, whereby the car owner can know that the vehicle is being towed at present.

 According to the present invention described so far, a digital driving recorder equipped with a burglar alarm, the digital driving recorder, the mobile phone communication device and the burglar alarm contained therein do not normally generate an RF signal from any one of the elements, or If one of the elements does not receive the RF signal, an alarm sounds and at the same time, the remote controller and the mobile phone can notify the user that the vehicle has theft attempt. Thus, according to the present invention, a vehicle equipped with a digital driving recorder equipped with a burglar alarm cannot be easily stolen.

Claims (5)

A digital driving recorder (100) installed in a car interior, generating a first high frequency (RF) signal, receiving another high frequency signal, and recording a current driving state of the car; Installed in a hood of the vehicle, generating a second high frequency (RF) signal, receiving the first RF and other ultra high frequency signals, wirelessly communicating with the digital driving recorder 100, and detecting the stolen state of the vehicle. A burglar alarm 140 that detects and generates burglar alarm sounds; Installed in the vehicle interior, generating a third high frequency (RF) signal, receiving the first and second RF, and wirelessly communicating with the digital driving recorder 100 and the burglar alarm 140; And the mobile phone (mobile phone or cellular phone) 110 of the mobile phone reminder to inform the state of the car 120, Remote controller for generating a fourth ultra-high frequency (RF) to set the stolen operation state of the vehicle to the digital driving recorder 100, and receives the first RF and the second RF to inform the vehicle owner of the stolen state of the vehicle ( Digital driving recorder having a burglar alarm, comprising a 130). The burglar alarm 141 of claim 1, wherein The burglar alarm controller which generates the second RF and wirelessly communicates with the digital driving recorder 100, the cellular phone communicator 120, and the remote controller 130 by receiving the first, third, and fourth RF signals. With 141, A shock detector 142 for detecting a shock of the vehicle and transmitting the detected shock signal to the burglar alarm controller 141; An automobile hood locking unit 143 for locking the vehicle hood and transmitting a lock state signal to the burglar alarm control unit 141; A digital driving recorder having a burglar alarm, characterized in that it comprises an alarm sound generating unit 144 for generating a burglar alarm sound in accordance with the control signal of the burglar alarm control unit 141. . The method of claim 1, wherein the digital recorder 100 is A power supply unit 106, A central processing unit 107 which receives power from the power supply unit 106 and electronically controls each element; A detection unit 102 for detecting a current state of a vehicle in the central processing unit 107; An RF transceiver 103 generating the first RF and receiving the second, third, and fourth RF; A liquid crystal display 104 for displaying an operation state of a vehicle under the control of the central processing unit 107, A memory 109 for continuously recording driving information of the vehicle according to the control of the central processing unit 107; A GPS receiver 101 which receives GPS signals from GPS (GPS) satellites, calculates current speed information, driving coordinate information, and current time information of the vehicle and transmits them to the central processing unit 107; A driving unit 109 for driving the vehicle under control of the central processing unit 107, A digital driving recorder with theft alarm, characterized in that it comprises an interface unit 105 for communicating with a predetermined external device. delete delete

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