KR200172069Y1 - Burglarproof key controller for a car - Google Patents

Abstract

The present invention is to devise a multi-level security system by additionally applying a password verification function when the door of the vehicle is not normally opened, and the existing key insertion method by electrically blocking the starting circuit of the vehicle when the door is abnormally opened. It is a technology that enhances security against theft by adding password verification function to the system.

[Index]

1: switch box of a car (starting key circuit), 2: sensor for theft prevention, 3: remote control for remote door opening or closing of the car, 4: alarm unit for generating an alarm sound when an outsider invades the car's theft alarm, 5 : Keypad for inputting data into the microcomputer, 6: Display unit connected to the microcomputer display output terminal to display information from the microcomputer, 7: Microcomputer with various programs built in, 8: Starting circuit unit for controlling the starting of the vehicle, 9 : Stabilized power supply unit for supplying power to the control device, 10: Door control device for opening and closing the door door with the remote control, 11: Theft alarm of the conventional vehicle, 1 & 8: Start including (1) and (8) Device part.

Description

Burglarproof key controller for a car}

The present invention mainly relates to a key control device technology to be used in a vehicle, and a technology for reinforcing a key to a multi-level security system in a situation where an outsider may be intruded.

All keys installed in a vehicle adopt a single type, which is for the convenience of driver's operation of the keys, and therefore, if a door is simulated by an outsider, the door is arbitrarily opened (this is called 'abnormally open' in this design). If so, even the ignition key can be easily operated, in which case the vehicle is in fact unprotected 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. This is why vehicles are usually easily stolen even if antitheft devices are 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 installed a key that can be operated with a password (hereinafter referred to as a 'password key') on the door of the vehicle.However, in order to improve the user's convenience by operating the anti-theft remote control, 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 cannot be secured against theft in other ways such as breaking the glass door without opening the door.

The first object of the present invention is to provide a key control function that ensures safety from an intruder and can be operated 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 general, but allowing the key control function to be expanded in multiple stages according to a user-specified condition. The purpose of this circuit is to ensure compact configuration and mass production, and to provide detailed information to the 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 certain 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.

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

3 and 4 are a hierarchical structure diagram and a flow chart of the invention anti-theft key control method.

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

A start key 1 connected to the first input terminal of the microcomputer 7 for controlling the start 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. Engine starting mechanism connected by gears.

Of course, the start key includes selecting and connecting only the START (start) output among the start switch circuits that are the multi-stage switches 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.

Providing the alarm sound to the speaker 4-2 via the amplifying unit 4-1 by uploading the alarm signal with the built-in microcomputer 7 is the same as the operation of a general anti-theft prevention device. The amplifier 4-1 includes a function of a converter (Interface) for digital / analog conversion of a voice signal.

The state where 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 password to start up. ' Of course, this can be replaced by turning on the lamp for cost reduction purposes, or can be outputted as voice information by adding a digital / analog converter (D / A interface) and a speaker as an improved function. It may also include a function of arbitrarily clearing the display content.

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 practice, the display unit and keypad 5 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 by serial communication such as RS-232C. It also eliminates the possibility of being arbitrarily modified.

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 (1 & 8) of a switch box (1) and a starter circuit (8) configuration, connected to the start output terminal of the microcomputer (7), 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;

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 it and a means for displaying information to be performed from the microcomputer on the display output terminal;

Organically connects the starter unit 1 & 8 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-step of the start key and the passkey An embodiment configured to operate a security system.

(11) of the second embodiment is a conventional anti-theft constitution, and the configuration of the starter portions 1 & 8 to which (1) and (8) are connected is the same as the start 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, it detects this and the microcomputer 7 cuts off the power to turn off the power supplied to the ignition key. 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 7 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 anti-theft alarm that is already installed. The difference is that it does.

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 the power to the starter circuit. It will be appreciated that these functions can also be used in combination or eclectically, as they can be used independently, and this applies equally to FIGS. 1 and 2.

3 and 4 show a hierarchical structure diagram and a flow chart of the anti-theft control method of the present invention, the present invention is composed of five steps of initialization step, password setting step, situation monitoring step, operation inspection step and 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)

This process, like all electronic devices, prevents the internal program from being tangled and breaks down the sequence, and includes a self-diagnosis using a program watchdog timer.

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 remote control function, stops the vehicle's starting function, and checks the password entered by the user to determine whether it matches. As a reservation function, it is possible to perform a series of processes to preferentially stop the starting function of the vehicle for a given period regardless of the sensor output.

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 on-off 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 remote control function includes a remote control switch function commonly used in an anti-theft device, but the remote control function can be used together with the vehicle's remote start function.

The remote control function can be extended to the voice recognition function and the fingerprint recognition function 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. In case of mixing with sensor detection function, sensor detection function can be optionally included in a given time zone, and timer reservation function can be used to block unconditional start function or maintain unconditional start function at other time. It is composed.

Of course, the timer reservation function is constituted by means of uploading a program by recognizing a time designated by a keypad and a time designated by its own time coefficient (clock) function.

The alarm function refers to a function that generates an alarm sound with a conventional anti-theft function when an output is generated by the sensor detection function, but this alarm sound is designed to recognize a kind of sound such as a morse code that matches the vehicle number. It may further include, and if necessary, can be deleted to mute (만 音) to configure only the lamp to be lit.

The start control function normally generates output at the start output terminal of the microcomputer, but when the sensor detection function or timer reservation function is driven, the start output terminal of the microcomputer is first interrupted and the password verification function described below is operated. It is a function that controls the start output stage when key) is operated, and this start control function, password verification function or start control function, key control function, start control function, password verification function and start control function are integrated into one function. It can also be configured as a function, the term representing this is the start control function.

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 stages, such as to enter the same password twice in a row if there is a mismatch even in three operations. In this case, however, it is effective to return the extended password to the original state by checking a door open signal or password matched with a remote controller.

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, it will be started according to the user's operation. In describing the operation of the present invention, the most preferred function of first operating a start switch by inputting a password has been described, but the overall function is the same except that the operation is slightly changed.

The display function is a series of display functions for informing the user of information in this process, and when the user controls the key in the situation where the start control function is driven, for example, 'To start, enter the password and then enter the start key. It may additionally include a function of selecting or mixing the text information or the voice information. The present invention does not specifically show a method of constructing a logic circuit. In the present invention, the present invention is not limited to the above embodiment because the present invention may be omitted, or may be composed of AND, OR logic circuits, RAM, ROM, and the like.

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. Without this, only a key control function can be configured to enhance a multi-level function, but since it can be easily performed therefrom, the detailed description is omitted.

On the other hand, the output terminal of the present invention connected to the starting circuit unit or the starting device of the vehicle is able to prevent theft by controlling the operation of the vehicle regardless of whether or not starting, even if connected to the brake device for preventing theft of the present invention The key control device configuration includes all means for connecting or connecting the output terminal of the microcomputer to the starter unit or the like so as to connect the brake device.

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

It can be operated by the conventional key control function, and the key control function is multi-leveled by the key insertion method and the password key function specified by the user only when an abnormal situation such as an intruder occurs (detection of sensor output or designated reservation period). It is effective to make the user's operation easier while improving the safety against theft.

In addition, the present invention can be utilized as an alternative to exclude the alarm sound generation function in preparation for the malfunction of the anti-theft protector, and according to the timer reservation function, drunk driving in an unconscious drunken state that the driver can not remember the password at night. It is an advantageous design that can be prevented even before.This design is composed of electronic key control function, so it is possible to secure mass production with compact structure and unified physical standard, and when the display function is composed of LCD. There is an effect that can provide a variety of information to the user.

Claims (4)

In the key control device connected to the starter to prevent theft of the vehicle, Means for the user to input and store the password with the password setting function, means for detecting the physical abnormality applied to the vehicle with the sensor detection function, means for generating and stopping the alarm signal at the alarm output terminal with the alarm function, user with the remote control function A microcomputer (7) having a program as a means for controlling the opening and closing of the door of the vehicle, and a means for controlling the output of the start output terminal by a password verification function, a key control function and a start control function; A start key 1 connected to the first input terminal of the microcomputer 7 for controlling the start 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; A start circuit part 8 connected to the start output terminal of the microcomputer 7 and configured as a means for controlling the start circuit of the vehicle; is configured as a connection to normally control the start of the vehicle with only one start key, and an output is generated from the sensor. And means for configuring the multi-level security system of the simultaneous start key and the encryption key when it is displayed to the user when it is done. In the key control device connected to the starter to prevent theft of the vehicle, A means for inputting and storing a password by the password setting function, a means for receiving an output signal of the burglar alarm 11, a means for detecting a physical abnormality applied to the vehicle with a sensor detection function, and a start control function and a password verification function A microcomputer 7 provided with a program as a means for controlling the output of the output terminal; A starter unit 1 & 8 which is connected to the start output terminal of the microcomputer 7 and which comprises a starter key 1 and a starter circuit 8 for the driver to control starting 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; It is connected to the second input terminal of the microcomputer (7), the keypad (5) is configured to allow the user to set a password; is configured as a connection to control the start of the vehicle with only one start key, when the output is generated from the anti-theft And a means for configuring the multi-level security system of the simultaneous startup key and the encryption key to display this to the user. The method according to claim 1 or 2, The keypad 5 means is provided with means for allowing a user to set and operate a reservation period, The microcomputer 7 includes means for specifying a user reservation period by means of a timer reservation function and means for controlling the output of the start output terminal by means of a startup control function and a password verification function by driving a program stored in the reservation period by recognizing the time itself. The program is equipped, And a means configured to keep the start key and the passkey function mixed in spite of the sensor (2, 11) output during a user-specified reservation period. In the key control device connected to the starter to prevent theft of the vehicle, A means for inputting and storing a password by the user as a password setting function, a means for setting a user reservation period specified by a timer reservation function, and generating an output at the start output terminal during normal operation, but starting a timer reservation function in a designated reservation period to start control. A microcomputer (7) provided with a program as a means for controlling the output of the starting output stage with a function and a password verification function; A starter unit 1 & 8 which is connected to the start output terminal of the microcomputer 7 and which comprises a starter key 1 and a starter circuit 8 for the driver to control starting of the vehicle; It is connected to the input terminal of the microcomputer (7), the keypad (5) is configured to enable the user password setting and timer reservation operation; is configured as a connection to control the start of the vehicle with only one start key in normal, the user during the reservation period specified by the user The anti-theft key control device comprising a means for configuring the multi-level security system of the simultaneous start key and the encryption key to display this to.