KR102462247B1 - Drinking start-up Prevention System for Vehicles - Google Patents

Abstract

The present invention relates to a system for preventing drunk start of a vehicle. When a driver with a smart key is seated in the driver's seat of a vehicle, it detects the seated state so that the vehicle cannot be started, and by forcing a breathalyzer test, the vehicle can be started in an abnormal state. It is possible to block drunk driving at the source, and it is possible to implement the function to prevent drunk driving without changing the function or design of the smart key, so the existing smart key can be used as it is. It provides a drink-start prevention system for vehicles.

Description

Drinking start-up prevention system for vehicles {Drinking start-up Prevention System for Vehicles}

The present invention relates to a system for preventing drunk driving for a vehicle, and more particularly, for a vehicle that can prevent drunk driving by forcing a breathalyzer test when the driver of the vehicle is seated in the driver's seat so that the vehicle cannot be started in an abnormal state It is related to the drunk start prevention system.

In general, vehicles such as automobiles require attention in relation to safety accidents while driving, but if the driver drives the vehicle while drinking alcohol at a concentration higher than the prescribed level, it can cause enormous damage to the lives and property of others.

In order to prevent drivers from driving under the influence of alcohol, police officers periodically use an alcohol level meter in a specific area to conduct a crackdown, but the crackdown on such drunk driving continues despite many police personnel mobilizing The effect is extremely limited, and there is a possibility that the drinker may cause more casualties by driving their vehicle into residential alleys, etc. avoiding the roadside in order to avoid areas where such alcohol crackdowns are frequent.

Accordingly, various methods for maintaining the inability to start when a drinker attempts to drive a vehicle are proposed through Registered Patent No. 10-1448592 (Reference 1), Registered Patent No. 10-1281807 (Reference 2), etc. has been

First of all, Reference 1 relates to a vehicle safety smart key system, a fingerprint recognition sensor for obtaining user's fingerprint information, and a fingerprint recognition by performing communication with a vehicle when the user recognizes a fingerprint through the fingerprint recognition sensor. A time measuring module for checking the time, a body temperature sensor for acquiring the user's body temperature information when the time measured by the time measuring module is night, a fingerprint feature database in which fingerprint feature information extracted from the user's fingerprint information is stored, and non-drinking Comparing a memory module including a reference body temperature database in which body temperature information in a state is stored, and fingerprint characteristic information that is a user's fingerprint in the user's fingerprint information obtained from the fingerprint recognition sensor and a fingerprint characteristic of the fingerprint characteristic database A smart key control module including a fingerprint recognition sensor control module, a body temperature sensor control module that compares the user's body temperature information obtained from the body temperature sensor with the reference body temperature database, and the user's fingerprint characteristic information and the fingerprint characteristic A smart key communication module that transmits a vehicle unlock signal to the vehicle control unit when the fingerprint characteristics of the database are matched, and transmits a vehicle start prohibition signal to the vehicle control unit when the user's body temperature information is different from the reference body temperature of the reference body temperature database A vehicle safety smart key comprising a, and a vehicle control unit for unlocking a vehicle lock with the fingerprint information obtained from the vehicle safety smart key, and controlling the start of the vehicle according to whether or not drinking is determined based on the measured body temperature. .

And Reference 2 relates to a smart key device for a car and a driving method thereof, wherein the smart key device for the car includes a controller for generating a driving control signal by judging whether the user is drinking from at least one biological information of the user; A light emitting unit irradiating light to the user's finger, a light receiving unit generating human body information corresponding to the at least one biological information by collecting light reflected or transmitted by the finger, and the smart key device according to the driving control signal and a driving unit for controlling the operation of the , and a temperature detecting unit for generating temperature information by detecting the temperature of the user's finger.

However, References 1 and 2 are all equipped with a body temperature measurement function such as a body temperature sensor that can measure the drinking state in the smart key. In this case, there is a problem in that the vehicle cannot be started.

In addition, References 1 and 2 show that when multiple users (eg, family) are registered with the smart key, when authentication is performed as a normal family, the drinking state specific function is virtually disabled, so that the drinker can easily start the vehicle. There is a problem.

In addition, in References 1 and 2, as the smart key has a user recognition and breathalyzer function, the configuration of the smart key is complicated, and the risk of malfunction is high due to the nature of the smart key that is always carried.

Reference 1: Registered Patent No. 10-1448592 Reference 2: Registered Patent No. 10-1281807

Therefore, the present invention for solving the problems of the prior art as described above by forcing a breathalyzer test when the driver is seated in the driver's seat of the vehicle so that the vehicle cannot be started when the vehicle is in an abnormal state, thereby preventing drunk driving at the source. It aims to provide a prevention system.

In particular, the present invention is for a vehicle in which a smart key is recognized in a vehicle equipped with a smart key system, and when a occupant seated in the driver's seat is detected, a breathalyzer test is performed to prevent the vehicle from starting so that the vehicle cannot be started in an abnormal state. An object of the present invention is to provide a system for preventing drunk start.

In addition, the present invention does not add a function for preventing the start of a drinker to the smart key carried by the user, so the existing smart key is used as it is, and the purpose of the present invention is to provide a system for preventing drunk start of a vehicle that can implement a function of preventing drunk start for a vehicle. .

The present invention in order to solve this technical problem;

a vehicle control means for controlling the vehicle driving unit according to the start signal of the start button and wirelessly transmitting the LF signal; a smart key for transmitting an RF signal including vehicle-specific information to the vehicle control means when the LF signal of the vehicle control means is received; a driver's seat occupancy detection means installed in the driver's seat of the vehicle and outputting a occupancy detection signal when the driver is seated; It is installed close to the driver's seat of the vehicle, and when a seated detection signal is input from the driver's seat seat detection means, a start-disabled signal is output to the vehicle control means to stop wireless transmission of the LF signal, and then the driver's blood alcohol concentration is measured to be below the set reference value It provides a drink-start prevention system for a vehicle, characterized in that it includes a breathalyzer that outputs a startable signal so as to wirelessly transmit an LF signal to the vehicle control means.

At this time, the vehicle control means receives a start signal when the driver presses the start button installed in the interior of the vehicle, and a vehicle control unit that controls the vehicle driving unit that drives the engine, and the LF for verifying the authentication of the smart key possessed by the driver A first wireless communication unit for wirelessly transmitting a signal and wirelessly receiving an RF signal corresponding to the LF signal from a smart key, wherein the first wireless communication unit includes an LF transmission module for wirelessly transmitting the LF signal, and the RF of the smart key Consists of an RF receiving module for receiving a signal; The smart key receives the LF signal transmitted through the first wireless communication unit of the vehicle control means, and a second wireless communication unit that wirelessly transmits an RF signal corresponding to the LF signal, and the LF signal received through the second wireless communication unit. and a smart key control unit for generating a corresponding RF signal and outputting it to the second wireless communication unit, wherein the second wireless communication unit includes an LF receiving module for wirelessly receiving the LF signal, and wirelessly transmitting the RF signal of the smart key control unit It is characterized in that it is composed of an RF transmission module.

And the vehicle control unit of the vehicle control means when the start impossible signal of the breathalyzer is input or no signal is input by inactivating the LF transmission module of the first wireless communication unit to non-transmit the LF signal, and when the startable signal of the breathalyzer is input 1 It is characterized in that the LF signal is transmitted wirelessly by activating the LF transmission module of the wireless communication unit.

In addition, the vehicle control means stops the driving of the vehicle driving unit so that the start of the vehicle is impossible even if the start signal of the start button is input if there is no signal input from the breathalyzer or the start-unable signal of the breathalyzer is input. .

In addition, the breathalyzer is installed on the ceiling of the vehicle interior above the driver's head, and an alcohol sensor that measures the alcohol concentration according to the driver's breathing, and when a seat detection signal is input from the driver's seat seat detection means, the blood alcohol concentration is measured using the alcohol concentration. A breathalyzer control unit that converts and outputs a start impossible or startable signal to the vehicle control means in comparison with the set reference value, and when a sitting detection signal is input from the driver's seat sitting detection means, it is controlled by the breathalyzer control unit to request a breathalyzer test It is characterized in that it comprises an audio output unit for audio output of broadcasting and audio output of broadcasting impossible or startable by converting the blood alcohol concentration using the alcohol concentration input through the alcohol sensor and comparing it with a set reference value.

The drunk start prevention system for a vehicle according to the present invention detects the seated state when a driver with a smart key is seated in the driver's seat of the vehicle so that the vehicle cannot be started, and by forcing a breathalyzer test, it is impossible to start the vehicle in an abnormal state. Drunk driving can be prevented.

In addition, according to the present invention, it is possible to implement the function of preventing the start of a drinker without changing the function or design of the smart key carried by the user, so that the existing smart key can be used as it is, thereby reducing the cost of building a system for implementing the function of preventing drunk start for a vehicle. have.

1 is a control configuration diagram of a system for preventing drunk start of a vehicle according to the present invention.
Figure 2 is a detailed configuration diagram of the vehicle drunk start prevention system according to the present invention.

Hereinafter, the characteristics of the drunk start prevention system for a vehicle according to the present invention will be understood by way of embodiments which will be described in detail with reference to the accompanying drawings.

1 and 2 are diagrams illustrating a system for preventing drunk start of a vehicle according to the present invention.

According to this, the drink start prevention system for a vehicle of the present invention includes: a vehicle control means 100 for controlling the vehicle driving unit 20 according to the start signal of the start button 10 and wirelessly transmitting a LF (Low Frequency) signal; a smart key 200 for transmitting an RF signal including vehicle specific information to the vehicle control means 100 when the LF (Low Frequency) signal of the vehicle control means 100 is received; a driver's seat occupancy detection means 300 installed in the driver's seat of the vehicle and outputting a occupancy detection signal when the driver is seated; It is installed close to the driver's seat of the vehicle, and when a seated detection signal is input from the driver's seat seat detection means 300, the vehicle control means 100 to stop transmitting the LF signal wirelessly, and then output a start impossible signal to the driver's blood alcohol concentration It includes a breathalyzer 400 that outputs a startable signal so as to wirelessly transmit an LF signal to the vehicle control means 100 if the measurement is less than the set reference value.

In this structure, when the driver is in the driver's seat, the driver's seat seat detection means 300 mounted on the driver's seat is operated to stop the wireless transmission of the LF signal from the vehicle control means 100, and even if the driver has the smart key 200 It makes it impossible to start the car, and by measuring the blood alcohol concentration in the breathalyzer 400 installed near the driver's seat, the LF signal is transmitted wirelessly from the vehicle control means 100 only when it is normal, so that the smart key 200 and the vehicle control The means 100 enables the vehicle to be started when wireless communication is normally performed.

In addition, the vehicle includes road transportation means requiring a driver's driving, such as an industrial vehicle as well as a normal passenger car.

Hereinafter, the structure of each part of this invention is demonstrated concretely.

The vehicle control means 100 includes a vehicle control unit 110 that controls the vehicle driving unit 20 that drives the engine when the driver presses the start button 10 installed in the interior of the vehicle, and a start signal is input thereto; A first wireless communication unit 120 for wirelessly transmitting an LF (Low Frequency) signal for verifying the authentication of the smart key 200 possessed by the user and wirelessly receiving an RF (Radio Frequency) signal corresponding to the LF signal from the smart key 200 ) is included.

At this time, the first wireless communication unit 120 is composed of a LF transmission module 121 for wirelessly transmitting the LF signal, and an RF reception module 122 for receiving the RF signal of the smart key 200 .

The vehicle control unit 110 of the vehicle control means 100 deactivates the first wireless communication unit 120, particularly the LF transmission module 121, when the start impossible signal of the breathalyzer 400 is input or the signal is not input to the LF signal. Non-transmitting, when the start-up signal of the breathalyzer 400 is input, the first wireless communication unit 120, in particular, activates the LF transmission module 121 to wirelessly transmit the LF signal. In this case, the deactivation of the LF transmission module 121 may be configured by changing the code of the LF signal or blocking the current supplied to the LF transmission module 121 in a switching manner.

Therefore, the vehicle control unit 110 of the vehicle control means 100 deactivates the first wireless communication unit 120 when there is no signal input from the breathalyzer 400 or the signal input from the breathalyzer 400 is input. Even if the driver presses the start button 10 by blocking the normal signal transmission and reception with the smart key 200, the vehicle driving unit 20 is stopped and the vehicle cannot be started, and the start-up signal of the breathalyzer 400 is When inputted, the first wireless communication unit 120 is activated to enable normal signal transmission and reception with the smart key 200, and when the driver presses the start button 10, the vehicle driving unit 20 is driven to start the vehicle. .

On the other hand, the smart key 200 receives the LF (Low Frequency) signal transmitted through the first wireless communication unit 120 of the vehicle control means 100 and wirelessly transmits the RF (Radio Frequency) signal corresponding to the LF signal. A smart key controller ( 220). Of course, the smart key 200 is a known configuration that may further include an operation button 230 such as a start button and a door lock button.

At this time, the second wireless communication unit 210 consists of an LF reception module 211 for wirelessly receiving the LF signal, and an RF transmission module 212 for wirelessly transmitting the RF signal of the smart key control unit 220 .

And the driver's seat sitting detection means 300 is installed in the driver's seat of the vehicle and outputs a seated detection signal to know that the driver is seated when seated, and this seated detection signal is input to the breathalyzer 400.

The driver's seat occupancy detection means 300 may use an infrared sensor, an ultrasonic sensor, a limit switch, etc. installed in the door or inside the vehicle. It is preferable to use a load cell that is a detection sensor, and in this case, the load cell is preferably built in the lower part of the driver's seat.

On the other hand, the breathalyzer 400 is installed on the ceiling of the vehicle interior near the driver's seat of the vehicle, especially above the driver's head. Compare to determine whether or not you drink.

Such a breathalyzer 400 converts the blood alcohol concentration by using the alcohol concentration when the alcohol sensor 410 for measuring the alcohol concentration according to the driver's breathing, and a seat detection signal from the driver's seat seat detection means 300 are input. and a breathalyzer control unit 420 for outputting a start impossible or startable signal to the vehicle control means 100 in comparison with the set reference value.

The alcohol sensor 410 uses the principle of measuring the flow of the amount of charge and converting it into blood alcohol concentration when the alcohol in the exhaled air is injected into the collection part by an electrochemical reaction at the two electrodes and a flow occurs.

At this time, the breathalyzer 400 may replace various breathalyzer means in addition to the alcohol sensor 410, and the degree of design change of this degree also falls within the scope of the present invention.

And the breathalyzer 400 is controlled by the breathalyzer control unit 420 when a seating detection signal is input from the driver's seat seating detection means 300, and outputs a voice announcement requesting a breathalyzer measurement, and through the alcohol sensor 410 It further includes an audio output unit 430 that converts the blood alcohol concentration using the input alcohol concentration and compares it with a set reference value to output a sound of a start impossible or startable broadcast.

This voice information may be provided in the memory in the breathalyzer 400, the voice output unit 430 may be composed of a speaker or a buzzer. In addition, the breathalyzer control unit 420 may be configured as a microcomputer having a built-in memory.

This breathalyzer 400 continuously checks whether or not a seated detection signal is input from the driver's seat seat detection means 300 even in the process of performing the alcohol test, and the seated detection signal from the driver's seat seat detection means 300 continues If it is not input or there is no signal input for a set period of time (for example, 2 seconds), it is determined to be out of seat and is initialized to output a voice announcement requesting a breathalyzer again. In this state, the signal is transmitted to the vehicle control means 100 Even if the driver presses the start button 10 by not outputting, it is preferable to stop the driving of the vehicle driving unit 20 to make it impossible to start the vehicle.

Hereinafter, a driving example of the drunk start prevention system for a vehicle according to the present invention will be described with reference to FIGS. 1 and 2 .

The LF signal is continuously wirelessly transmitted through the first wireless communication unit 120 of the vehicle control means 100 installed in the vehicle.

In this state, when the driver approaches the vehicle while holding the smart key 200, the LF signal is received through the second wireless communication unit 210 of the smart key 200, and accordingly, the smart key control unit 220 of the smart key 200 ) generates an RF (Radio Frequency) signal corresponding to the LF signal after searching for a unique ID of the LF signal, and wirelessly transmits the LF signal through the second wireless communication unit 210 .

Accordingly, the vehicle control unit 110 of the vehicle control means 100 receives the RF signal through the first wireless communication unit 120 and checks whether it is normal.

On the other hand, when the driver sits in the driver's seat in this state, the driver's seat seat detection means 300 detects the driver's seat and outputs a seated detection signal to the breathalyzer 400. Accordingly, the breathalyzer control unit 420 of the breathalyzer 400 that has received the seating detection signal to the driver's seat seat detection means 300 controls the audio output unit 430 to output a voice announcement requesting a breathalyzer. Such a state is a state in which there is no output such as a start impossible or possible signal, and the vehicle control unit 110 of the vehicle control means 100 does not input such a signal, even if the driver presses the start button 10, the vehicle driving unit 20 ) is stopped and the vehicle cannot be started.

After that, when the driver receives an alcohol concentration from the alcohol sensor 410 in response to the breathalyzer test, the breathalyzer control unit 420 converts the blood alcohol concentration and compares it with the set reference value. print out Accordingly, the vehicle control means 100 deactivates the LF transmission module 121 of the first wireless communication unit 120 to block normal signal transmission and reception with the smart key 200, so that even if the driver presses the start button 10, the vehicle driving unit ( 20), it is impossible to start the vehicle by stopping the drive. In this case, the breathalyzer control unit 420 of the breathalyzer 400 controls the audio output unit 430 to re-audit the announcement requesting the breathalyzer again to confirm whether or not drinking. Of course, even in this case, it is natural that other functions of the vehicle operate normally except for starting the vehicle.

On the other hand, the breathalyzer control unit 420 outputs a startable signal when the blood alcohol concentration is less than a set reference value. Accordingly, the vehicle control means 100 activates the LF transmission module 121 of the first wireless communication unit 120 to enable normal signal transmission and reception with the smart key 200, and when the driver presses the start button 10, the vehicle driving unit 20 ) to start the vehicle. That is, the driver is seated in the driver's seat and the vehicle can be started after a normal drinking test is performed through the breathalyzer 400 .

The above description is merely illustrative of the technical idea of the present invention, and various modifications and variations are possible without departing from the essential characteristics of the present invention by those skilled in the art to which the present invention pertains. The scope of protection should be interpreted by the following claims, and all technical ideas within the equivalent range should be construed as being included in the scope of the present invention.

10: start button 20: vehicle driving part
100: vehicle control means 110: vehicle control unit
120: first wireless communication unit 121: LF transmission module
122: RF receiving module 200: smart key
210: second wireless communication unit 211: LF receiving module
212: RF transmission module 220: smart key control unit
230: operation button 300: driver's seat seat detection means
400: breathalyzer 410: alcohol sensor
420: breathalyzer control unit 430: audio output unit

Claims (5)

a vehicle control means 100 for controlling the vehicle driving unit 20 according to the start signal of the start button 10 and wirelessly transmitting an LF signal; a smart key 200 for transmitting an RF signal including vehicle-specific information to the vehicle control means 100 when the LF signal of the vehicle control means 100 is received; a driver's seat occupancy detection means 300 installed in the driver's seat of the vehicle and outputting a occupancy detection signal when the driver is seated; It is installed close to the driver's seat of the vehicle, and when a seated detection signal is input from the driver's seat seat detection means 300, the vehicle control means 100 to stop transmitting the LF signal wirelessly, and then output a start impossible signal to the driver's blood alcohol concentration and a breathalyzer 400 for outputting a startable signal so as to wirelessly transmit an LF signal to the vehicle control means 100 if the measurement is less than the set reference value;
The vehicle control means 100 wirelessly transmits the vehicle control unit 110 for controlling the vehicle driving unit 20 according to the start signal of the start button 10 and the LF signal for verifying the authentication of the smart key 200 . and a first wireless communication unit 120 for wirelessly receiving an RF signal corresponding to the LF signal from the smart key 200, wherein the first wireless communication unit 120 is a LF transmission module for wirelessly transmitting the LF signal ( 121) and an RF receiving module 122 for receiving the RF signal of the smart key 200;
The smart key 200 receives the LF signal transmitted through the first wireless communication unit 120 of the vehicle control means 100 and wirelessly transmits an RF signal corresponding to the LF signal. A second wireless communication unit 210; and a smart key control unit 220 for generating an RF signal corresponding to the LF signal received through the second wireless communication unit 210 and outputting it to the second wireless communication unit 210, the second wireless communication unit 210 ) is composed of an LF reception module 211 for wirelessly receiving the LF signal, and an RF transmission module 212 for wirelessly transmitting an RF signal of the smart key control unit 220;
The vehicle control unit 110 of the vehicle control means 100 deactivates the LF transmission module 121 of the first wireless communication unit 120 when the start impossible signal of the breathalyzer 400 is input or the signal is not input to the LF signal. It is not transmitted, and when the startable signal of the breathalyzer 400 is input, the LF transmission module 121 of the first wireless communication unit 120 is activated to wirelessly transmit the LF signal.
The method of claim 1,
The breathalyzer 400 is installed on the ceiling of the vehicle interior above the driver's head, and an alcohol sensor 410 that measures the alcohol concentration according to the driver's breathing, and the driver's seat seat detection means 300. When the seated detection signal is input, the A breathalyzer control unit 420 that converts blood alcohol concentration using alcohol concentration and compares it with a set reference value to output a start impossible or startable signal to the vehicle control means 100, and the driver's seat seat detection means 300 When a signal is input, it is controlled by the breathalyzer control unit 420 to output a voice announcement requesting a breathalyzer measurement, converts the blood alcohol concentration using the alcohol concentration input through the alcohol sensor 410, and compares it with the set reference value to start. Drunk start prevention system for a vehicle, characterized in that it comprises an audio output unit (430) for outputting a sound impossible or startable broadcast.
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