KR20010009524A - Burglarproof key control process controller for a car - Google Patents

Abstract

PURPOSE: A method and apparatus for controlling burglarproof key for vehicle are provided to reinforce the safety of a vehicle against a thief in such a manner that an engine start circuit is cut off under a state that a door is abnormally opened by adding a secret number identification function to a key insert type burglarproof device of the prior art. CONSTITUTION: In a method and apparatus for controlling burglarproof key for vehicle, the apparatus for controlling burglarproof key comprises a switch box for controlling engine start of a vehicle; a sensor(2) for detecting a physical abnormal situation; a remote controller(3) for opening and closing a vehicle door in remote; an alarm member; a key pad(5) for allowing a user to set a secret number; a display member(6); a microcomputer(7); and an engine start circuit(8). The microcomputer(7) includes a device for detecting an operation for starting a vehicle engine; a device for generating alarm sound if the sensor(2) outputs a signal and for cutting off an output from an engine start output terminal if the secret number is not input under a state that the sensor(2) output a signal; a device for allowing a user to open and close a door, connected to the remote controller; a device for storing the secret number input by a user; and a program for displaying any information performed in the microcomputer on the display output terminal.

Description

Burglarproof key control process controller for a car}

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention mainly relates to a key control device technology to be used in a vehicle, and is a technology for reinforcing a key into a multi-level security system in a situation where an outsider may be invaded.

All the keys installed in a vehicle adopt a single type, which is for the convenience of driver's operation of the keys, so that if an outsider arbitrarily opens the door by using the simulated key (this is called "abnormally open" in the present invention). If so, even the ignition key can be easily manipulated, in which case the vehicle is virtually defenseless in theft.

The anti-theft device of the vehicle is composed of a means of detecting an abnormal opening of the door, a glass breakage or an impact applied from the outside to generate an alarm, and at this time, it is mainly used for informing outsiders to intruders. .

Therefore, in a vehicle equipped with an antitheft device, it is natural that an alarm sounds when an outsider invades. However, it is virtually impossible to prevent theft, that is, even the operation of the vehicle, by delaying the intrusion mainly at night. It is for this reason that vehicles are usually easily stolen even if an antitheft device is installed.

Moreover, since general anti-theft devices are sensitive to external electric or radio noises, a lot more drivers than the anti-malware system have shut off this alarm sound to prevent malfunctions, and as a result, they are often unable to function as anti-theft devices. to be.

Some high-end passenger cars have a key that can be operated with a password (hereinafter referred to as a "password key") on the door of the vehicle to solve this problem.However, in order to improve user convenience by operating the anti-theft remote control, the password key is As a result of this contrary, opening the door using only the password key without using the remote control is a cumbersome drawback, and another drawback is that the password is easily exposed to others due to the external operation.

In addition, the encryption key can not guarantee the security against theft in the other way, such as breaking the glass door without opening the door.

A first object of the present invention is to provide a key control function that can be secured from an intruder and operate in a convenient environment.

A second object of the present invention is to provide a means for performing a key control function in an environment that is easy to use in a normal manner, but expanding the key control function in multiple steps according to a condition specified by a user.

The present invention for this purpose provides a means for starting the vehicle only when the two conditions are satisfied by operating the key control device at the same time or when the anti-theft device is operated or during a specific reservation period. In particular, by using a microcomputer to configure the key control device integrated with the anti-theft prevention of the existing vehicle or to provide a configuration means to be mainly used in the vehicle by combining the existing anti-theft prevention as a separate additional device.

Hereinafter, the present invention will be described in detail with reference to the accompanying drawings.

1 is a block diagram showing an embodiment of a key control device of the present invention.

2 is a block diagram showing another embodiment of the key control device of the present invention.

3 and 4 are a hierarchical diagram and a flowchart of the anti-theft key control method of the present invention.

1 is a block diagram showing an embodiment of the present invention,

A switch box 1 connected to the first input terminal of the microcomputer 7 for controlling the starting of the vehicle by the driver;

A sensor 2 connected to the second input terminal of the microcomputer 7 and detecting a physical abnormality applied to the vehicle while the door is locked;

A remote controller 3 connected to the third input terminal of the microcomputer 7 for opening and closing the door of the vehicle by remote control;

An alarm unit 4 connected to the alarm output terminal of the microcomputer 7 to display an alarm sound output from the microcomputer;

A keypad 5 connected to the fourth input terminal of the microcomputer 7 and configured to allow a user to set a password;

A display unit 6 connected to the display output terminal of the microcomputer 7 and configured to display user information and program information stored in the microcomputer on the screen;

Means for detecting the starting operation of the vehicle connected to the switch box (1), Detecting a physical abnormality applied to the vehicle connected to the sensor (2) and when the sensor (2) generates an output alarm sound Means to cut off the output of the start output stage unless a password is entered and matched in the state in which the sensor 2 generates the output, and is connected to the remote controller 3 to control the user to open and close the door of the vehicle. A microcomputer (7) having a program connected to the keypad (5), the program being provided as a means for storing the user's input of a password and for displaying information performed by the microcomputer on the display output terminal;

A start circuit section 8 configured as a means for controlling the start circuit of the vehicle; connected to the start output terminal of the microcomputer 7 to control the start of the vehicle with only one start key, and when an output is generated from the sensor. This is an example to configure the multi-level security system of the ignition key and the encryption key.

Reference numeral 9 is a stabilizing power supply for supplying power to the control device, 10 is a door control device for opening and closing the door by the remote control (3).

Referring to the operation of the first embodiment of the present invention configured as described above is as follows.

First, when the user stores the password in the microcomputer 7 by using the keypad 5, the microcomputer 7 outputs the normal operating conditions, that is, the output when the user operates the ignition key in the switch box 1. It simply performs the transfer to the starting circuit section (8).

By simply transmitting the start key operation signal, the magnet switch is activated when the conventional start key is operated, and accordingly, an environment in which the start motor is started is operated. The start motor is referred to as an engine and pinion. Starting motor connected by gear.

Of course, the start key includes selecting and connecting only the START output of the start switch circuit which is a multi-stage switch of OFF, ACC, ON, and START.

When the sensor 2 generates an output, a physical abnormality is generated in the vehicle. Therefore, the microcomputer first cuts off the electrical connection path between the starter key 1 and the starter circuit unit 8 and generates an alarm sound through the alarm unit 4. It acts to generate.

Uploading the alarm signal with the built-in microcomputer 7 and providing the alarm sound to the speaker 4-2 via the amplifying unit 4-1 is the same as the operation of a general antitheft device. -1) of course includes the interface function for the digital / analog conversion.

The state in which the connection path between the starter key 1 and the starter circuit unit 8 is interrupted is shown on the display unit 6. At this time, the key control function is activated on the display unit 6. Please enter your message. " Of course, this can be replaced by lighting the lamp for cost reduction purposes.

The user inputs the same password as the previously memorized password according to this instruction, and the microcomputer recognizes it and checks whether it matches, and when it matches, the user returns to the original normal state to connect the starter key 1 and the starter circuit unit 8 to each other. At this time, the microcomputer 7 stops the alarm signal.

If the remote control 3 opens and closes the door, the microcomputer 7 performs only the operation of opening and closing the door control device 10 and maintains the connection of the start key and the start circuit unit. The microcomputer is connected to the door control device to automatically open and close the door door, and the general burglar alarm function, that is, when the door is locked by the remote controller, the microcomputer 7 monitors the output of the sensor 2 and the sensor output when the door is opened by the remote controller. Ignore the action is also performed.

In reality, the display and keypad connected to the microcomputer are installed in the driver's vicinity, that is, the driver's seat, and the microcomputer is installed in the engine room, and they are connected to the serial communication line such as RS-232C.

2 is a block diagram showing another embodiment of the present invention,

FIG. 1 illustrates an embodiment in which a password key function performed by connecting the keypad 5 and the display unit 6 around the microcomputer 7 of FIG. 1 is combined with a conventional anti-theft prevention device and a starter circuit.

A starter unit 18 connected to the start output terminal of the microcomputer 7 and configured by a switch box 1 and a starter circuit 8 for the driver to control the starting of the vehicle;

A burglar alarm 11 connected to a first input terminal of the microcomputer 7 for detecting an abnormal physical condition applied to the vehicle while the door is locked and generating an alarm and supplying the output of the sensor 2 to the microcomputer;

A keypad 5 connected to the second input terminal of the microcomputer 7 and configured to allow a user to set a password;

A display unit 6 connected to the display output terminal of the microcomputer 7 and configured to display user information and program information stored in the microcomputer on the screen;

Means for generating an output to the start output terminal normally, but when the output is generated in the anti-theft protector 11, the means for blocking the output of the start output terminal, unless the password is matched, connected to the keypad (5) when the user enters the password A microcomputer 7 in which a program is embedded as a means for storing the information and a means for displaying information performed by the microcomputer on the display output terminal;

The starter unit 18 is organically connected to the start output terminal of the microcomputer 7 to control the start of the vehicle with only one start key, and when the output is generated from the anti-theft protector, the multi-level security of the start key and the passkey The system is configured to work.

(11) of the second embodiment is a conventional anti-theft constitution, and the configuration of the starter unit (18) to which (1) and (8) are connected is the same as the starting circuit in a conventional vehicle.

However, since power supplied to the ignition key 1 is controlled by the output of the microcomputer, the output of the microcomputer can be connected to the output of the microcomputer via the relay, and the connection with the burglar alarm is stolen. A part of the sensor output of the alarm is used to connect to the input of the microcomputer.

The operation of FIG. 2 is as follows.

Normally, power is supplied to the ignition key 1, but when the sensor 2 generates an output by the operation of the burglar alarm 11, the sensor detects this and the microcomputer 7 cuts the output so that the power supplied to the ignition key is 0ff. Then, the process of supplying power to the ignition key by recognizing the password is the same as the operation of FIG.

However, while FIG. 1 shows that the microcomputer performs the function of the anti-theft alarm and the function of the encryption key, FIG. 2 excludes the theft alarm function but combines with the already installed anti-theft alarm to perform the password key when the anti-theft device operates. different.

The function of the microcomputer can be made more diverse. If you use the self-reservation program at night, for example, from 10 pm ^to 6 am, you must enter a password to supply power to the starter circuit. Being able to use them independently also makes it possible to mix or customize these functions, which applies equally to FIGS. 1 and 2.

3 and 4 show a hierarchical structure diagram and a flowchart of the anti-theft control method of the present invention. The present invention is composed of five steps of an initialization step, a password setting step, a situation monitoring step, an operation inspection step and an output control step. do.

Hereinafter, the present invention will be described in detail with reference to FIGS. 3 and 4 as follows.

① When the power is applied, the control unit performs an initialization step to align the internal program. (101)

As with all electronic devices, this process prevents the internal program from being tangled and breaks down the sequence, and uses the Watchdog Timer to perform self-diagnosis.

② Next, when the user enters the password, the microcomputer recognizes and stores the password. (102)

This process is for the user to specify his / her own password using the keypad, and the information is displayed on the display unit according to the operation specified by the user.

③ Next, when the user locks the door, a situation monitoring step for continuously monitoring the intrusion is performed. (103, 104)

In this process, the physical shock applied to the vehicle or the function of abnormally opening the door is detected by the output of the sensor, which includes a process of recognizing a given reservation period by using a timer reservation function that is reserved by itself. .

④ Next, when an output is generated to the sensor, an alarm signal is generated by the function of the anti-theft prevention device and the start function of the vehicle is stopped, and an operation inspection step of verifying a password input by the user is performed. (105, 106, 107) , 108)

This process detects the abnormal condition of the vehicle by the sensor detection function and the Remocon function, firstly stops the starting function of the vehicle, and checks whether the user inputs the password. As a function, you can perform a series of steps to stop the vehicle's starting function for a given period of time.

⑤ If the password is finally matched, the output control step of returning the starting function of the vehicle is performed.

In this process, the starting function of the vehicle is returned to normal starting operation.

The password setting function is a function for entering and storing a password on the keypad for initial value or password change.

The sensor detection function is a function that generates a digital 0n-0ff output by detecting a physical shock applied to a vehicle or an abnormally open state of a door, and this sensor detection function may use part of an existing anti-theft output.

The Remocon function includes a remote control switch function commonly used in anti-theft devices, but it can also be used with the vehicle's remote start function.

The Remocon function can comprehensively include the voice recognition function and the fingerprint recognition function that are mainly used in the advanced key functions.

The timer reservation function is a function to stop the start-up function and enter the password to return the start-up function unconditionally during the user's reservation period.This timer reservation function can be mixed with the sensor detection function or excluded from the sensor detection function. It can also be configured independently.

The alarm function refers to a function of generating an alarm sound with a conventional anti-theft function when an output is generated by the sensor detection function, but the alarm sound may further include an invention for recognizing a kind of sound such as a morse code. If necessary, it can also be deleted to mute only the lamp.

The start control function stops the start function first when the sensor detection function or timer reservation function is activated and displays the information "Please enter the password to operate the start key and operate the start key" on the display.

The password verification function is a function that verifies whether the password entered by the user during operation is compared with the password stored by the password setting function, and if it does not match, another means of controlling the operation of the vehicle after a few manipulations. For example, it may include a means for continuously expanding the password in multiple levels.

The key control function is a function that detects the user operating the ignition key, and may further include a function of displaying information indicating that the user wants to operate the ignition key without inputting a password. Of course, if the ignition key is operated when the password is matched, the start-up will be performed according to the user's operation.

The display function is a series of display functions for informing the user of information in this process, which can be optionally applied.

The start control function is a function for controlling the start function or returning the start function.

Although the present invention is not limited to the above embodiment, the logic circuit configuration is not illustrated, but from this anti-theft control method, the AND, OR logic circuit, RAM, ROM, etc. are replaced or mixed with the microcomputer in FIG. It can also be configured as.

In addition, in the configuration of FIG. 1, the alarm unit 4 is deleted to delete the alarm sound generation function when the anti-theft device is operated, or the path for supplying the alarm sound to the speaker in FIG. 1 and FIG. Only a key control function without a function can be configured to enhance the function in multiple stages, but since it can be easily performed from this, the detailed description is omitted.

The present invention has the effect of improving the safety from accidental intruders to prevent theft, especially in the vehicle,

Normally, it can be operated by the conventional key control function, and the key control function can be performed in multiple stages by the key insertion method and the user-specified password key only when an abnormal situation such as an intruder occurs (detection of sensor output or designated reservation period). This improves the safety against theft while also making the user's operation easier.

In addition, the present invention can also be utilized as an alternative to exclude the alarm sound generation function arbitrarily in preparation for the malfunction of the anti-theft protector, according to the timer reservation function is a beneficial invention that can prevent even drunk driving in an unconscious drunk state at night.

Claims (4)

In the configuration method of the key control device to be connected to the starting device to prevent theft of the vehicle, When the power is applied, the control unit initialization step of aligning the internal program; (2) a password setting step in which the microcomputer recognizes and stores the password when the user inputs the password by the password setting function; ③ The situation monitoring step of continuously monitoring the intrusion of outsiders by the sensor detection function, the Remocon function or the timer reservation function; ④ the operation inspection step of stopping the vehicle starting function by the function of the anti-theft prevention function by the start control function and the password verification function, and then verifying the user password; ⑤ the output control step of returning the starting function of the vehicle when the password is matched by the key control function and the start control function; consisting of means for the key control function consisting of a multi-level security system in an abnormal situation Prevention key control method. In the key control device connected to the starter to prevent theft of the vehicle, A switch box 1 connected to the first input terminal of the microcomputer 7 for controlling the starting of the vehicle by the driver; A sensor 2 connected to the second input terminal of the microcomputer 7 and detecting a physical abnormality applied to the vehicle while the door is locked; A remote controller 3 connected to the third input terminal of the microcomputer 7 for easily opening and closing the door of the vehicle; An alarm unit 4 connected to an alarm output terminal of the microcomputer 7 for displaying an alarm output from the microcomputer; A keypad 5 connected to the fourth input terminal of the microcomputer 7 and configured to allow a user to set a password; Means for detecting the starting operation of the vehicle connected to the switch box (1), Detecting a physical abnormality applied to the vehicle connected to the sensor (2) and when the sensor (2) outputs an alarm signal to the alarm output stage Means to cut off the output of the ignition output stage unless the password is entered and matched in the state where the sensor 2 generates the output, the control connected to the remote controller 3 to allow the user to open and close the door of the vehicle. A microcomputer (7) having a program connected to the keypad (5), the program being provided as a means for storing the user's input of a password and for displaying information performed by the microcomputer on the display output terminal; A start circuit section 8 configured as a means for controlling the start circuit of the vehicle; connected to the start output terminal of the microcomputer 7 to control the start of the vehicle with only one start key, and when an output is generated from the sensor. Anti-theft key control device comprising a means for configuring a multi-level security system of the start key and the encryption key. In the key control device connected to the starter to prevent theft of the vehicle, Connected to the start output terminal of the microcomputer (7), the starter unit (18) of the switch box (1) and the starting circuit (8) configuration for the driver to control the start of the vehicle A burglar alarm 11 which is connected to the first input terminal of the microcomputer 7 and detects a physical abnormality applied to the vehicle while the door is locked and generates an alarm and supplies the output of the sensor 2 to the microcomputer accordingly; A keypad 5 connected to the second input terminal of the microcomputer 7 and configured to allow a user to set a password; Means for generating an output to the start output terminal normally, but when the output is generated from the sensor (2), the means for blocking the output of the start output stage unless the password is matched, connected to the keypad (5) the user enters the password A microcomputer 7 in which a program is embedded as a means for storing the information and a means for displaying information performed by the microcomputer on the display output terminal; The starter unit 18 is organically connected to the start output terminal of the microcomputer 7 to control the start of the vehicle with only one start key, and multi-level security of the start key and the passkey when an output is generated from the antitheft device. An anti-theft key control device comprising means for constructing a system. The method according to claim 2 or 3, The microcomputer further includes a program for stopping the startup function at a user-specified reservation period, and optionally connects a sensor and an anti-theft device to the microcomputer to maintain a mixed start and password key function within a user-specified reservation period. Anti-theft key control device comprising a means configured to.