KR20000055416A - Starting apparatus and method of automobile using breathalyzer - Google Patents

Abstract

PURPOSE: A device and a method for igniting a vehicle using a breath analyzer are provided to prevent an accident due to drinking. CONSTITUTION: An airflow sensing fan in an intake tube decides the accurate performance of breath analysis of a driver. A measured value is received in a microcomputer(100) simply when an airflow is generated. The measured value outputted from a breath analyzer(101) is inputted to an A/D(analog/digital) converter(106) to be converted to a digital value and fed to the microcomputer. The microcomputer compares the measured value with an allowable value to decide if the driver is drunken. If the concentration of the alcohol in blood is out of the allowable value, the microcomputer decides that the driver is drunken. A vocal warning message stored in a voice memory(116) is read out and outputted to a D/A(digital/analog) converter(111). The D/A converter converts the message to an analog signal and outputs the converted signal to a speaker driving unit(112).

Description

Starting device and method of car using breathalyzer {STARTING APPARATUS AND METHOD OF AUTOMOBILE USING BREATHALYZER}

The present invention relates to a starting device and a method of a vehicle, and in particular, a breathalyzer that grasps a driver's drinking condition by using a breathalyzer and prevents a driver from starting a car when drinking. It relates to a starting device and a method of a vehicle used.

Automobiles have become a necessity of life, and the number of their supply has been increasing rapidly in recent years.

In order to drive a car safely, the driver must be conscious of safety first of all, and an example of an accident caused by the lack of safety awareness is a drunk driving accident.

Drunk driving is particularly cautious because it endangers not only the damage of one's body and wealth, but also the lives of others.

In order to prevent such drunk driving, a strong legal sanction is imposed on the driver, and when a drunk driver drives an accident, a law is also imposed on the passenger seated in the passenger seat, but this is insufficient to prevent drunk driving accidents. to be.

In addition, the conventional car does not have a separate device for rejecting when the driver tries to operate the car in a drinking state, it is not possible to prevent driving in a drinking state.

This leads to increasingly social problems and national losses in human and material resources.

Accordingly, the present invention, in view of the above problems in the prior art, when a driver attempts to drive a car in a drunk state by using a breathalyzer to determine the drunk state and then drunk driving accident by automatically determining whether the car is started or not based on the result. It is an object of the present invention to provide a device and a method for starting a car using a breathalyzer to prevent the smoke in advance.

In addition, there is another object to maximize the efficiency of the operation during the day by enabling the operation by measuring the alcohol in the time zone set by the alcohol measurement time setting.

In addition, when a person rides in the passenger seat, there is another purpose of outputting a voice warning message so that the driver can be drunk.

1 is a block diagram showing a starting device for a vehicle using the present invention breathalyzer.

2 is a structural view of a vehicle for explaining the present invention.

3 is a view showing a cross section of the breathalyzer blown pipe;

4 and 5 is a flow chart showing a method of starting a vehicle using the breathalyzer of the present invention.

<Description of the code | symbol about the principal part of drawing>

100: microcomputer 101: breathalyzer

102: door opening and closing sensor 103: driver's seat weight detection sensor

104: passenger weight detection sensor 105: microphone

106: A / D converter 107: timer

108: time setting memory 109: key input unit

110: comparison unit 111: D / A conversion unit

112: speaker driving unit 113: speaker

114: display driver 115: display unit

116: voice memory 117: motor drive unit

118: starting motor 119: engine

A vehicle starting method using the breathalyzer according to the present invention for achieving the above object comprises a first step of detecting the driver's weight by sensing the weight of the driver; A second process of storing the weight sensed by the first process and then determining whether there is a starting intention of the vehicle from the driver; A third step of driving the breathalyzer if the intention to start is determined whether to start or not based on the measured value; A fourth process of starting the engine and maintaining a running state when the start is determined; A fifth process of detecting again the weight of the driver when the driver's seat door is opened and closed while maintaining the driving state and determining whether the driver's door is the same as the previously stored weight value; If the weight is equal to the previously stored weight value, the process is performed again from the fifth process. Otherwise, the engine is stopped and the sixth process is performed again from the first process.

On the other hand, if the alcohol measurement time zone is set after performing the second process, the seventh process of determining whether the current time is the alcohol measurement time zone; In the case of drinking time, it is characterized by including the eighth process performed from the third process, otherwise performed from the fourth process.

The method may further include a ninth process of generating a warning message after outputting a warning message if the start is not determined in the fourth process.

In addition, when the start is determined in the fourth process, a tenth process of detecting the weight of the passenger seat occupant; An eleventh step of storing the passenger's weight when the passenger's weight is detected and outputting a voice warning message; A twelfth step of detecting the weight of the passenger seat occupant and comparing it with previously stored values when the passenger door is opened or closed; If the compared value is identical, the process is performed again from the twelfth process.

As shown in FIG. 1, an apparatus for starting a vehicle using a breathalyzer according to the present invention for realizing a method including the above processes includes a breathalyzer 101 for measuring a driver's drinking status; A door opening and closing sensor 102 for detecting an open / closed state of the door; Driver and front passenger weight sensor (103, 104) for detecting the weight of the driver and front passenger; An A / D converter 106 for converting the detection results of the breathalyzer 101 and the sensors 102, 103, and 104 into digital signals; Whether the engine is started by the measured value of the breathalyzer 101 by receiving the output of the A / D converter 106, and whether to output the engine stop and warning messages based on the detected values of the sensors 102, 103, and 104. A microcomputer 100 for determining; A motor driver 117 for driving the starting motor 118 by the output of the microcomputer 100; A starting motor 118 for starting the engine by the output of the motor driver 117; A D / A converter 111 for converting a voice warning message output from the microcomputer 100 into an analog signal; Characterized in that it consists of a speaker driver 112 for outputting the output of the D / A converter 111 to the speaker 113 by a predetermined level.

A timer 107 for counting time; A time setting memory 108 in which a drinking time zone set by a user is stored; A comparator 110 receiving the output of the timer 107 and the time setting memory 108 and outputting a comparison result; It characterized in that it comprises a microcomputer 100 for determining whether to start the engine according to whether or not to measure the alcohol by the output of the comparison unit 110.

With reference to the accompanying drawings, a starting device and a method of a vehicle using the present invention breathalyzer configured as described above will be described in detail.

First, FIG. 2 is a diagram illustrating a state in which a breathalyzer 101, a door open / close sensor 102, a driver's seat and a passenger seat weight sensor 103, 104 are mounted in a vehicle, and the breathalyzer 101 is located near a driver's seat, and a door The open / close sensor 102 is mounted at one side of the door.

In addition, the driver's seat and front passenger's weight sensor (103, 104) is mounted inside the interior seat so as to measure the weight of the driver or passengers in the passenger seat most accurately.

Therefore, when a person sits on the sheet, the weight does not change so much that the weight can be easily detected.

As described above, when the driver sits on the seat while the breathalyzer 101, the door open / close sensor 102, the driver's seat and the passenger's seat weight sensor 103, 104 are mounted, the force corresponding to the driver's weight is applied to the driver's seat weight sensor 103. Will be added.

Accordingly, the detected weight is input to the A / D converter 106 and converted into a digital signal, and the digital weight value is provided to the microcomputer 100.

Therefore, the microcomputer 100 can recognize that the driver is seated in the driver's seat, and store this digital weight value in its own memory (not shown) (ST100, ST101).

Subsequently, when the driver intends to insert a key into the key holder to start the vehicle, the microcomputer 100 determines whether the drinking time is set (ST102, ST103). .

In general, there is not much opportunity to drink during the day, and there are many opportunities to drink in the afternoon or night time when the end of the day, so if you measure drinking all day, you may experience a lot of time in driving the car.

Therefore, a driver or a person (for example, a family) who wants to prevent drunk driving may set a time zone for drinking measurement in the time setting memory 108 through the key input unit 109.

Each vehicle is equipped with a digital clock so that time can be easily recognized while driving. The result counted by the timer 107 is converted into time data by the microcomputer 100, and the converted result is displayed by the display driver ( Through the 114 is output to the display 115.

Of course, even when the user sets the time zone for drinking measurement, the display unit 115 displays the time zone to be set so that the person setting the time zone can check the setting time zone.

Therefore, the comparison unit 110 receives the output of the timer 107 and the data output from the time setting memory 108 and compares them to provide the comparison result to the microcomputer 100.

The microcomputer 100 receives the output of the comparator 110 and determines whether the current time is the alcohol measurement time zone (ST104). If the alcohol consumption time zone is determined as a result, the driver drives the alcohol meter 101 to drink alcohol. Measurement can be made (ST105).

Of course, when the alcohol measurement time zone is not set, since the comparison result value is not output from the comparison unit 110, the microcomputer 100 determines that the alcohol measurement is always performed and immediately drives the alcohol meter 101 ( ST103, ST105).

In addition, as a result of the comparison of the comparison unit 110, when the current time is not the alcohol measurement time zone, it is not necessary to perform the alcohol measurement, the microcomputer 100 outputs a driving signal to the motor driving unit 117 to drive the starting motor 118. By doing so, the engine 119 is started up (ST104, ST109).

Meanwhile, as the breathalyzer 101 is driven, the driver measures the breath through the blown pipe 101-1 of the breathalyzer 101 as shown in FIG. 3, where the driver accurately measures the breath. In order to determine whether the air flow detection fan (101-2) is provided in the blown pipe (101-1), the microcomputer (100) accepts the drinking measurement only when there is air flow.

The breathalyzer measurement value output from the breathalyzer 101 is input to the A / D converter 106 and converted into a digital value and applied to the microcomputer 100, and the microcomputer 100 allows the breathalyzer measurement value. It is determined whether or not drinking compared to the (ST106).

That is, when the allowable value of the blood alcohol concentration according to the drinking is out of the drinking state is determined to read the voice warning message stored in the voice memory 116 and then output to the D / A conversion unit 111, the D / A The conversion unit 111 converts this into an analog signal and outputs the same to the speaker driver 112.

Therefore, the voice warning message is displayed to the driver through the speaker so that the driver can recognize it (ST107).

In this case, the voice warning message stored in the voice memory 116 may be input by the driver or the family through the microphone 105.

When the voice warning message is output, the microcomputer 100 locks the engine so that the engine does not start so that the vehicle cannot be driven (ST108).

However, when the drinking measurement value is within the allowable value, the microcomputer 100 outputs a driving signal to the motor driving unit 117 to drive the starting motor 118 to start the engine 119 (ST106, ST109). .

Thereafter, when the engine 119 is started and the vehicle is in a driving state, the microcomputer 100 determines whether the door is opened and closed by receiving a signal detected by the door open / close sensor 102 and converted into a digital signal (ST111). ).

If the door is not opened or closed, it is determined that the driver who has performed the alcohol measurement continues to drive and keeps the driving state of the vehicle. Otherwise, the driver may be in a changed state and thus the alcohol measurement must be performed again.

This is to prevent the driver from taking alcohol measurements on behalf of others while drinking.

Therefore, when the door of the driver's seat is opened and closed, the microcomputer 100 receives the weight value inputted from the driver's seat weight sensor 103 and converted into a digital signal, and compares it with the weight value stored in the memory (ST113).

In other words, it is compared to determine whether the driver has performed a drunk measurement, and if the weight value is the same as the result of the driving, the driving state is maintained continuously (ST113, ST110). Since the microcomputer 100 is to be operated, the microcomputer 100 stops the engine 119 by controlling the motor driver 117 (ST114).

Accordingly, the driver can start the vehicle only after the above 'ST1OO' process is performed again.

On the other hand, even if the person occupied the passenger seat when the accident occurs during drunk driving, legal responsibility, if a person boards in the passenger seat outputs a drunk driving warning message so as to hold the driver drunk driving.

In this case, when the engine is started, the microcomputer 100 stores the weight value detected by the front passenger weight sensor 104 and converted into a digital signal in its own memory, and then the voice warning message stored in the voice memory 116. Will be read.

The read voice warning message is output to the D / A converter 111, the D / A converter 111 converts it to an analog signal and outputs it to the speaker driver 112 to drive the driver when drinking. Be sure to keep the current flowing (ST200, ST201, ST202, ST203).

In addition, when the passenger's door is opened and closed, the door detection sensor 102 detects this, and converts the detected value into a digital signal and provides it to the microcomputer 100.

That is, since another person may ride in the passenger seat, the microcomputer 100 receives the newly detected weight value from the passenger seat weight sensor 104 and compares it with the previously stored weight value.

If the compared weight values are the same, the process of 'ST204' is performed again. Otherwise, the process of 'ST204' is performed again. If not, the voice warning message is output whenever the passenger of the passenger seat changes.

As described above, the apparatus and method for starting a car using the breathalyzer according to the present invention, when a driver attempts to operate the car in a drinking state, grasps a drinking state using a breathalyzer and then automatically determines whether the car is started or not based on the result. It is effective to prevent drunk driving accidents.

In addition, there is another object to maximize the efficiency of the operation during the day by enabling the operation by measuring the alcohol in the time zone set by the alcohol measurement time setting.

In addition, when a person rides in the passenger seat, there is an effect of outputting a voice warning message so as to keep the driver drunk.

Claims (6)

A first process of sensing a weight of the driver to detect whether the driver is on board; A second process of storing the weight sensed by the first process and then determining whether a driver intends to start the vehicle from the driver; A third step of driving the breathalyzer if the intention to start is determined whether to start or not based on the measured value; A fourth process of starting the engine and maintaining a running state when the start is determined; A fifth process of re-detecting the weight of the driver when the driver's seat door is opened and closed while maintaining the driving state to determine whether the driver's door is equal to the pre-stored weight value; If the weight is equal to the previously stored weight value is carried out again from the fifth step, otherwise, the engine starting method using a breathalyzer characterized in that the sixth step of performing again from the first step. The method of claim 1, A seventh process of determining whether the current time is in the alcohol measurement time zone when the alcohol measurement time period is set after performing the second process; The method of starting a car using a breathalyzer, characterized in that the step of performing the third step in the case of the drinking time measurement, and the eighth step if not performed from the fourth step. The method of claim 1, And a ninth process of outputting a warning message and then locking the engine so as not to start the engine if the start is not determined in the fourth process. The method of claim 1, A tenth step of detecting a weight of a passenger seat occupant when starting is determined in the fourth step; An eleventh step of detecting the weight of the passenger seat and then outputting a voice warning message; A twelfth step of detecting the weight of the passenger seat occupant and comparing it with previously stored values when the passenger door is opened or closed; And if the compared value is identical, the process is performed again from the twelfth process, and if not, the thirteenth process is performed again from the eleventh process. A breathalyzer 101 for measuring a driver's drinking status; A door opening and closing sensor 102 for detecting an open / closed state of the door; Driver and front passenger weight sensor (103, 104) for detecting the weight of the driver and front passenger; An A / D converter 106 for converting the detection results of the breathalyzer 101 and the sensors 102, 103, and 104 into digital signals; The output of the A / D converter 106 is applied to determine whether to start the engine by the measured value of the breathalyzer 101, and whether to output the engine stop and warning messages based on the detected values of each sensor (102, 103, 104). A microcomputer 100 for determining; A motor driver 117 for driving the starting motor 118 by the output of the microcomputer 100; A starting motor 118 for starting the engine by the output of the motor driver 117; A D / A converter 111 for converting a voice warning message output from the microcomputer 100 into an analog signal; Starting device of the vehicle using a breathalyzer, characterized in that it comprises a speaker 112 for amplifying the output of the D / A converter (111) by a predetermined level and output to the speaker (113). The method of claim 5, A timer 107 for counting time; A time setting memory 108 in which a drinking time zone set by the user is stored; A comparator 110 receiving the output of the timer 107 and the time setting memory 108 and outputting a comparison result; Starting device of a vehicle using a breathalyzer, characterized in that it comprises a microcomputer (10) for determining whether to start the engine according to whether or not to measure the alcohol by the output of the comparison unit (110).