KR100534305B1 - Device for locking/unlocking the door of vehicle by wireless - Google Patents

Abstract

The present invention relates to a wireless door locking device for a vehicle which releases the lock state of the door when the remote control reaches within a predetermined distance and contacts the door handle and returns to the locked state of the door when the remote control moves out of the predetermined distance.

The wireless door locking device of the vehicle of the present invention, the ferrite antenna 10 is installed on the vehicle door handle (2) for transmitting and receiving radio signals, and the electrostatic capacity is installed on the door handle (2) to detect the capacitance changed by physical contact When the secret code is transmitted to the remote controller 100 through the electrostatic sensor unit 20 and the ferrite antenna 10, and a response code is received and the response code matches the pre-built response code, the electrostatic sensor unit ( 20. The door lock is released in response to the signal output from the etax 30, which releases the door lock by the signal input from the control panel 20 and returns to the locked state when the remote controller is out of a certain distance. The door lock unit 40 for switching to the door, the door release unit 50 for switching the door to the unlocked state according to the signal output from the etax 30, and the correct response code when the correct secret code is inputted It comprises a portable remote control (100) for transmitting.

Description

Device for locking / unlocking the door of vehicle by wireless}

The present invention relates to a wireless door lock of a vehicle, and more particularly, when the remote control reaches within a predetermined distance and the body touches the door handle, the door is unlocked, and when the remote control moves out of the predetermined distance, the door is locked. A wireless door lock of a returning vehicle.

In order to improve the convenience of using a vehicle, a wireless door lock device is used in addition to a conventional manual door key. The wireless door lock is to lock / unlock the door wirelessly, and when the driver transmits a wireless signal using a remote controller carried by the driver, the wireless door unit mounted on the vehicle receives this and releases the door lock state. Allow them to open the vehicle door. In addition, when the wireless signal for locking is transmitted using the remote control, the wireless receiver also receives this and switches the door release state to the locked state to lock the door of the vehicle.

However, the conventional remote control has a inconvenience that the driver must press the corresponding button of the remote control in the state close to the vehicle door in order to perform a specific operation. This is particularly inconvenient to use in dark places such as at night or underground parking lot. Therefore, it is required to add a convenient function that can automatically lock / unlock the door state of the vehicle without the driver's separate operation.

The present invention has been made to solve the above problems, an object of the present invention is to release the lock state of the door when the remote control reaches within a predetermined distance and the body contacts the door handle and the remote control moves out of the predetermined distance of the door It is to provide a wireless door lock of the vehicle to return to the locked state.

Another object of the present invention is to provide a wireless door lock device for a vehicle that can increase the convenience of a user by upgrading the function of an ETAX installed in a conventional vehicle.

The wireless door locking device of the present invention for achieving the above object is a ferrite antenna installed on the vehicle door handle to transmit and receive a radio signal, and installed on the door handle to detect the capacitance changed by the body contact to the current When the secret code is transmitted to the remote control through the outage sensor unit and the ferrite antenna, and the response code is received and the response code matches the pre-built response code, the door lock is released by the signal input from the outage sensor unit. Etax for controlling to return to the locked state when the remote controller is out of a certain distance, a door lock for switching the door to a locked state according to the signal output from the etax, and release the door according to the signal output from the etax The door release unit for switching to the state and the response code set when the correct secret code is entered Subject comprises a portable remote control.

Hereinafter, a wireless door lock of a vehicle of the present invention will be described in detail with reference to the accompanying drawings.

The present invention provides a more convenient use of the function of the wireless door lock device to wirelessly lock / unlock the door of the conventional vehicle, it is configured using the Etax (ETAS) mounted on the vehicle. Of course, it is also possible to configure using a separate control unit rather than etax.

1 is a block circuit diagram of a wireless door lock of a vehicle according to the present invention. As shown, the ferrite antenna 10, which is installed in the vehicle door handle 2 and transmits and receives a radio signal, and the capacitance, which is also installed in the vehicle door handle 2, detects and changes according to physical contact and detects corresponding thereto. The electrostatic sensor unit 20 outputs a signal to the remote controller 100 through the ferrite antenna 10 and a secret code, and receives a response code, when the response code matches the pre-built response code, the electrostatic sensor. The door is released in response to the signal output from the etax 30 and the etax 30 for releasing the door lock by the signal inputted from the unit 20 and controlling to return to the locked state when the remote controller is out of a certain distance. When the door lock unit 40 for switching to the locked state, the door release unit 50 for switching the door to the unlocked state according to the signal output from the Etax 30, and a secret code are inputted accordingly. To transmit a response code comprises a portable remote control 100. The

In addition, the wireless door lock of the vehicle of the present invention further includes a warning lamp unit 60 for visually notifying the driver of the locking / unlocking state of the door.

The ferrite antenna 10 is for transmitting and receiving data with the remote controller 100 and can transmit and receive a normal low frequency wave. The ferrite antenna 10 is installed on the outer surface of the vehicle door handle 2 and periodically transmits a frequency signal including a secret code. The frequency signal including the secret code transmitted is generated by the etax 30.

The wireless signal transmitted from the ferrite antenna 10 changes the reach according to the electric field strength, in the present invention can have a reach of about 5 ~ 10M radius, the distance can be changed.

The electrostatic sensor unit 20 is also installed on the door handle 2 of the vehicle, and when the driver or passenger touches the sensing electrode (not shown), the change in capacitance generated at this time corresponds to a current signal. To convert the output to. The output current signal is transmitted to the etax 30, and the etax 30 releases the locked state of the door by using the current signal.

3 is a block circuit diagram of an example of the electrostatic sensor unit 20.

As shown in the drawing, A / A for converting the sensing electrode 202 whose capacitance changes according to the contact with the body and the capacitance change input from the sensing electrode 202 to be recognized by the etax 30 A D converter 204 and a controller 206 for controlling the electrostatic sensor unit 20 are included. The electrostatic sensor unit 20 operates according to a control signal input from the etax 30 to the control unit 206.

Referring to FIG. 2, the electrostatic sensor 20 is installed on the surface of the door handle 2 of the vehicle to easily detect the change in capacitance by the sensing electrode 202 when the door handle is held by hand. . In this case, in order to increase the convenience of installation, it is preferable to configure in one piece together with the ferrite antenna 10.

The Etax 30 is to perform a control function in the present invention, it is configured by using the Etax (ETACS) mounted on a conventional vehicle. That is, the wireless door lock / unlock function of the present invention can be further added to the conventional Etax function.

Referring again to FIG. 1, the Etax 30 includes a main control unit 32 and an auxiliary control unit 34. The main control unit 32 reads and controls data such as a control program, a secret code, and a response code. It will perform the function. In addition, the auxiliary control unit 34 outputs a command to perform a function such as self-diagnosis.

In the present invention, the Etax 30 modulates and outputs a signal including a secret code through a ferrite antenna 10 into a wireless signal, and also demodulates and compares a response code input from the remote controller 100. In addition, if the response code is found to be valid after the comparison, the signal input from the electrostatic sensor unit 20 is detected to release the lock of the door of the vehicle. In addition, when the detection of the response code from the remote control is stopped, the door is locked to the locked state and all the doors are locked.

The locking and releasing of the door are performed by the door locking part 40 and the door releasing part 50, respectively. Since the door lock part 40 and the door release part 50 are used in the conventional wireless door lock device, detailed description thereof will be omitted.

The present invention also uses a warning lamp unit 60 to inform the driver of the locking and unlocking state of the door. The warning lamp unit 60 is fully operated when the door is locked or released, and flashes the lamp so that the driver can recognize it. The warning lamp unit 60 is also operated in accordance with the control signal output from the etax 30.

The remote controller 100 is carried by the driver and, unlike the related art, is operated when the driver moves within a certain range from the location where the vehicle is located, without transmitting a radio signal for the driver to perform a specific function by pressing a button. That is, the remote controller 100 receives a signal including a secret code from the ferrite antenna 10 and transmits a preset response code when the secret code matches the secret code previously stored in the remote controller.

4 is a block circuit diagram of the remote controller 100. The remote controller 100 includes a first amplifier 102 for amplifying a signal input through the first antenna 108, and the first amplifier 102. As shown in FIG. Reads the secret code contained in the signal input from the) and compares it with a preset secret code, and outputs a response code if the comparison result is matched, and modulates the signal output from the processor 104 by modulating the signal. The first transmission unit 106 outputs through the one antenna 108, and the power supply unit 110 for supplying power to the entire device. The control program and control data necessary for the control in the processing unit 104 are stored in the EEPROM 112 which is a storage.

The remote controller 100 also includes a second transmitter 116 and a second antenna 118 for outputting a radio signal separately from the first antenna 108. The second transmitter 116 outputs a radio signal including predetermined data through the second antenna 118 according to the signal of the processor 104.

In particular, the signal output through the second antenna 118 is a very weak signal, it is preferable that the reception reach distance is about 50cm. In this way, the signal is reached only around the driver's seat, and the indoor sensing antenna 70 is installed to be adjacent to the driver's seat to the Etax 30 so as to receive a signal transmitted from the second antenna 118. .

Referring back to FIG. 1, the indoor sensing antenna 70 is connected to the etax 30, and when a signal is received, the etax 30 locks the steering wheel solenoid part 80 to limit the starting of the vehicle. Clear the state so that a start can occur.

Obviously, the steering wheel solenoid portion 80 may be configured using a mechanical mechanism to block the power applied from the battery 90 so as not to start or to prevent the rotation of the ignition key inserted to start the engine. Do. In the present invention, the steering wheel solenoid unit 80 is configured to start or limit the start by blocking / connecting the battery 90 itself and the middle of the power supply line to which the battery 90 is supplied.

The operating state of the present invention having the configuration as described above is as follows.

When the driver carrying the remote controller 100 enters a certain distance of the vehicle, the driver receives a signal including a secret code periodically transmitted from the ferrite antenna 10 attached to the door handle 2. When the signal is received, the processing unit 104 of the remote controller compares whether the input secret code is the same as the previously stored secret code.

As a result of the comparison, if it is determined that the secret codes are the same, the processing unit 104 outputs a predetermined response code. The output response code is transmitted through the first antenna 108 after being modulated by the first transmitter 106 of the remote controller 100.

The signal including the transmitted response code is demodulated by the etax 30 after being received through the ferrite antenna 10. The response signal included in the demodulated signal is compared with the response signal stored in advance after being read by the main controller 32 of the etax 30. As a result of the comparison, if it turns out to be the same signal, the etax 30 stores this state and maintains the standby state.

Afterwards, when the driver touches the sensing electrode 202 of the electrostatic sensor unit 20, the electrostatic sensor unit 20 detects a change in capacitance that is changed at this time and inputs a current response signal to the etax 30. In the Etax 30, when a signal is input from the electrostatic sensor unit 20, a control signal is output to the door release unit 50 to release the locked state of all doors. The driver or passenger can thus open the door by operating the door handle 2.

On the other hand, when the driver carries the remote control 100 and moves out of a certain distance, the response signal from the remote control 100 is blocked, the Etax 30 detects this and operates the door lock 40 to lock all the doors. Switch to the state. Therefore, the driver or passenger who does not carry the remote control 100 does not open the door of the vehicle.

In the present invention, to prevent theft of the vehicle, it is possible to limit the vehicle starting unless the vehicle-specific remote controller 100 is located adjacent to the driver's seat. In other words, if the remote control 100 is not located by the indoor sensing antenna 70, the vehicle start function is essentially blocked from the Etax 30 after the door is unlocked.

As described above, according to the present invention, when the remote control reaches within a predetermined distance and the body contacts the door handle, the door is released from the lock and the remote control moves out of the predetermined distance, thereby returning to the locked state of the door.

1 is a block circuit diagram of a wireless door lock of the present invention;

Figure 2 is an installation state of the ferrite antenna and the electrostatic sensor of the present invention,

3 is a block circuit diagram of the electrostatic sensor unit of the present invention;

4 is a block circuit diagram of the remote control of the present invention.

※ Explanation of code for main part of drawing ※

2: door handle 10: ferrite antenna

20: electrostatic sensor unit 30: Etax

32: main controller 34: auxiliary control unit

40: door lock 50: door release

60: warning lamp unit 70: indoor detection antenna

80: steering wheel solenoid portion 90: battery

100: remote control 102: first amplifier

104: processing unit 106: first transmission unit

108: first antenna 110: power supply

112: EEPROM 116: second transmission unit

118: second antenna 202: sensing electrode

204: A / D converter 206: control unit

Claims (5)

A ferrite antenna 10 installed on the vehicle door handle 2 to transmit and receive a radio signal; An electrostatic sensor unit 20 installed on the door handle 2 to detect and output capacitance changed by physical contact; When the secret code is transmitted to the remote controller 100 through the ferrite antenna 10 and a response code is received and the response code matches the pre-built response code, the door lock is closed by a signal input from the electrostatic sensor unit 20. Etax 30 for releasing and controlling to return to the locked state when the remote controller is out of a certain distance; A door lock part 40 for switching the door to a locked state according to a signal output from the etax 30; A door release unit (50) for switching the door to a released state according to the signal output from the etax (30); In the wireless door lock device of a vehicle comprising a portable remote control 100 for transmitting a preset response code when the correct secret code is input, A second transmitter 116 and a second antenna 118 for transmitting specific information to the remote control 100 are further included, and a signal transmitted to the ETAX 30 through the second antenna 118. An indoor sensing antenna 70 for detecting the connection is connected, and a steering wheel solenoid unit 80 for releasing the restriction to normally start the vehicle is activated when a signal is input through the indoor sensing antenna 70. Wireless door lock of the vehicle, characterized in that the. The method of claim 1, And a warning lamp unit (60) for informing the driver of the locking or releasing state of the door. The method of claim 1, When the body of the capacitive sensor unit 20 comes into contact with the body, the sensing electrode 202 whose capacitance changes accordingly, and the capacitance change input from the sensing electrode 202 can be converted to be recognized by the etax 30. A / D converter 204 and a wireless door lock device for a vehicle, characterized in that it comprises a control unit (206) for controlling the electrostatic sensor unit (20). The method of claim 1, The remote controller 100 reads the first amplifier 102 for amplifying the signal input through the first antenna 108 and the secret code included in the signal input from the first amplifier 102 and reads it. When the comparison result is matched with a preset secret code, the processor 104 outputs a response code, and the first transmission unit modulates the signal output from the processor 104 and outputs it through the first antenna 108. 106, a power supply unit 110 for supplying power to the entire apparatus, and an EEPROM 112 for storing control programs and control data necessary for the control in the processing unit 104. lock. delete