JP2009196460A - Drunk driving preventing system - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a convenient drunk driving preventing system. <P>SOLUTION: The drunk driving preventing system is provided for judging a drunk state of a vehicle user when the user's vehicle starts to drive and controlling it for allowing the vehicle to run or inhibiting it from being run in response to a result of this judgment. The system comprises a position detecting means 1 mounted on the vehicle to measure a position of the vehicle, an area judging means 2 for collating the position of the vehicle measured by the position detecting means 1 with map information to judge whether or not the vehicle is located within a predetermined area associated with drinking stores, and a user's drunk state judgment means 3 for judging a user's drunk state of the vehicle user under application of different judgment methods in response to the result of judgment of the area judging means 2. <P>COPYRIGHT: (C)2009,JPO&INPIT

Description

  The present invention relates to a drunk driving prevention system that determines a drunk state of a vehicle user when the vehicle is started, and controls to permit or prohibit travel of the vehicle based on the determination result.

2. Description of the Related Art Conventionally, a drunk driving prevention system that determines a drunk state of a vehicle driver and controls the vehicle based on the determination result is disclosed in, for example, Patent Document 1. These drunk driving prevention systems are equipped with a dedicated sensor and detection system in the vehicle, such as measuring the odor of ethyl alcohol and aldehyde by breathing, in order to determine the drinking state corresponding to the blood concentration of alcohol. This is a technique for making a vehicle impossible to drive when alcohol is detected from a vehicle user.
JP 2007-106277 A

  However, when these drinking conditions are determined more accurately each time the vehicle is started, the conventional method realizes the drinking determination such that the vehicle user approaches the sensor and blows a large amount of exhaled air on the sensor. There is a problem in that convenience is lowered because a complicated operation must be performed every time.

  Accordingly, an object of the present invention is to provide a drunk driving prevention system that is made by paying attention to the above-described problems and that has good convenience.

  The drunk driving prevention system according to the present invention, as described in claim 1, controls the vehicle user's drinking state when the vehicle is started, and controls to permit or prohibit driving of the vehicle based on the determination result. A drunk driving prevention system comprising: a position detection means mounted on the vehicle for measuring a vehicle position; a vehicle position measured by the position detection means and map information are collated; An area determination means for determining whether or not the area is involved, and a drinking state determination means for determining a drinking state of the vehicle user by a different determination method according to a determination result of the area determination means. It is characterized by comprising.

  Further, as described in claim 2, in the drunk driving prevention system according to claim 1, based on the determination result of the drunk state determination means, the start of the engine of the vehicle is prohibited, the release of the brake is prohibited, Control means for outputting to the vehicle control device a prohibition signal that prompts prohibition of any one of prohibiting the throttle opening operation.

  Further, the drunk driving prevention system of the present invention, as described in claim 3, determines the drinking state of the vehicle user when the vehicle is started, and permits or prohibits the driving of the vehicle based on the determination result. A drunk driving prevention system for controlling, wherein a position detection unit mounted on the vehicle and measuring a vehicle position is compared with a vehicle position measured by the position detection unit and map information, and the vehicle is determined in advance. Area determination means for determining whether or not the area is involved in drinking, and when the area determination means determines that the area is within the area, the number of times is larger than that when the area is determined to be outside the area. And a drinking level determination means for determining the drinking level of the vehicle user.

  The present invention relates to a drunk driving prevention system that determines a drunk state of a vehicle user when the vehicle is started, and controls to permit or prohibit driving of the vehicle based on the determination result, and is useful for preventing drunk driving. System.

  Hereinafter, as an embodiment of the present invention, a drunk driving prevention system provided on an instrument panel of a vehicle will be described as an example.

  The drunk driving prevention system is mounted on a vehicle, and includes a position detection means 1, an area determination means 2, a drinking state determination means 3, and a control means 4, as shown in FIG. In this case, the drunk driving prevention system operates before the vehicle starts.

  The position detection means 1 can be a GPS receiver and is a receiver that receives a GPS signal radiated from an artificial satellite, and detects the current position of the vehicle based on the received GPS signal. Further, the position detection means 1 includes a GPS reception antenna and an amplification circuit, and area determination means using as a position information a signal obtained by amplifying a transmission radio wave as position information from an artificial satellite received by the reception antenna as a high frequency signal. Output to 2.

  The area determination means 2 can be a microcomputer, and the position detection means before the engine is started (for example, when the ignition switch of the vehicle is operated from OFF to ON, or when the vehicle user gets on the vehicle). The position information from 1 is input, this position information is compared with map information stored in advance in the storage unit, and it is determined whether or not the vehicle is located in an area that is highly likely to be involved in drinking. The determination result is output to the drinking level determination means 3. The area that is likely to be involved in drinking is determined from store data stored in advance in the storage unit and information obtained by communication from outside the vehicle and map information, for example, providing alcoholic beverages, A predetermined distance (for example, 1 km) can be set from a convenience store, a restaurant, an event venue such as a fireworks display or a festival.

  Further, in this case, the area determination means 2 is connected to a device such as a CAN (Controller Area Network) communication cable or an ignition switch, and inputs the position information from the position detection means 1 and various information of the vehicle. In response to this, it generates and outputs a signal for controlling the drinking level determination means 3 and a vehicle control device to be described later.

  The microcomputer serving as the area determination means 2 includes a CPU for performing arithmetic processing based on various information, a RAM that can be read and rewritten for temporarily storing arithmetic processing results in the CPU, a control program, and a control program. A storage unit composed of a ROM that stores data, a driver IC that generates and outputs a drive signal based on the calculation by the calculation process, and an input / output connected via a bus to exchange the various information and the drive signal And an interface. In addition, a recording medium for storing map information including store data for selling alcoholic beverages is also prepared as a storage unit. The microcomputer can also be used as the area determination means 2, the drinking level determination means 3, and the control means 4.

  The drinking state determination means 3 can apply the same microcomputer as the area determination means 2, determines the drinking state of the vehicle user using a sensor (alcohol sensor), and outputs the determination result to the control means 4. is there. The sensor is mounted on the vehicle, and can detect alcohol based on the expiration of the vehicle user, or can detect alcohol in the air in the vehicle without expiration.

  Based on the determination result of the area determination unit 2, the drinking level determination unit 3 determines that the vehicle is outside an area related to predetermined drinking without the vehicle user performing a special operation. The drinking state of the vehicle user is determined by determining the presence or absence of alcohol in the air in the vehicle. In this determination, considering the open / closed state of the windows and doors of the vehicle, the above determination can be made only when the vehicle is in the closed state.

  In addition, the drinking level determination unit 3 is in a state where the vehicle user has drunk when it is determined that the vehicle is within an area related to predetermined drinking based on the determination result of the area determination unit 2. Since the possibility is relatively higher than outside the area, detection by expiration of a predetermined amount or more of the vehicle user is required, and the drinking state is determined by a determination method with higher accuracy. The predetermined amount of exhalation can be determined from the amount of rotation and the rotation speed of a fan provided to rotate when the vehicle user blows exhalation on the sensor.

  The control means 4 can apply the same microcomputer as the drinking level determination means 3, and when it is determined that the vehicle user is not drinking based on the determination result of the drinking level determination means 3, to the vehicle control device. Output permission signal. In this case, the control means 4 outputs a permission signal to the starter switch or the engine starter device as the vehicle control device. In response to this permission signal, the vehicle control device can start the engine by operating the starter switch, and sets the vehicle in a travelable state.

  Moreover, the control means 4 outputs a prohibition signal to a vehicle control apparatus, when it determines with it being in the state which the vehicle user drank based on the determination result of the drinking level determination means 3. In this case, the control means 4 outputs a prohibition signal to the starter switch or the engine starter device as the vehicle control device. The vehicle control device that has received the prohibition signal cannot start the engine until the permission signal is input even if the vehicle user operates the starter switch, so that the vehicle cannot run.

  Such a drunk driving prevention system is a drunk driving prevention system that determines when a vehicle starts to determine a drunk state of a vehicle user, and controls to permit or prohibit driving of the vehicle based on the determination result. The position detection means 1 for measuring the vehicle position mounted on the vehicle, the vehicle position measured by the position detection means 1 and the map information are collated, and whether or not the vehicle is in a predetermined area related to drinking Area determining means 2 for determining the drinking state, and drinking state determining means 3 for determining the drinking state of the vehicle user by different determination methods according to the determination result of the area determining means 2.

  Therefore, since it is possible to determine the drinking state according to the possibility of drinking based on the area, a drunk driving prevention system with good convenience without forcing a complicated operation when the possibility of drinking is low It becomes. Moreover, when the possibility of drinking is relatively high when parked in the area, a more accurate drinking determination is performed, so that a highly reliable drunk driving prevention system is obtained.

  Further, based on the determination result of the drinking level determination means 3, the vehicle control device is provided with a prohibition signal for prohibiting starting of the vehicle engine, prohibiting the release of the brake, or prohibiting the opening of the throttle. By outputting, drunk driving can be prevented.

  The drunk driving prevention system of the present invention has been described by way of example in the configuration of the embodiment described above, but the present invention is not limited to this, and the gist of the present invention can be achieved in other configurations. It goes without saying that various improvements and design changes can be made without departing from the scope. For example, in the above-described embodiment, the drinking state determination unit 3 performs a different drinking state determination method according to the determination result of the area determination unit 2, but the vehicle is in an area related to drinking. In some cases, the number of times of determination by exhalation can be increased as compared to the case outside the area. In this case, when the vehicle is parked in the area and the possibility of drinking is high, a highly accurate drinking determination can be performed, and when outside the area, the drinking determination can be performed relatively easily.

  In addition, when determining appropriate driving including a drinking state from the response time and response time of a vehicle user, the convenience of the vehicle can be improved by changing the determination method and the number of determinations for each area described above. Conceivable. In addition, although the control unit 4 has described an example in which the start of the engine of the vehicle is prohibited when it is determined by the drinking state determination process that the vehicle user (vehicle driver) has drunk, A prohibition signal for prohibiting the release or for prohibiting the opening operation of the throttle may be output to make it impossible for the vehicle to travel. In addition, the driving operation of the vehicle can be restricted by performing vehicle control such as fixing the brake state, invalidating the accelerator operation, and limiting the gear range.

The figure which shows the structure of embodiment of this invention.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Position detection means 2 Area determination means 3 Drinking state determination means

Claims (3)

A drunk driving prevention system for determining a drinking state of a vehicle user at the time of starting the vehicle and controlling to permit or prohibit the driving of the vehicle based on the determination result,
Position detecting means mounted on the vehicle and measuring a vehicle position;
An area determination unit that compares the vehicle position measured by the position detection unit with map information and determines whether or not the vehicle is in an area related to predetermined drinking;
Depending on the determination result of the area determination means, the drinking state determination means for determining the drinking state of the vehicle user by different determination methods;
A drunk driving prevention system characterized by comprising:   Based on the determination result of the drinking level determination means, a prohibition signal for prohibiting start of the engine of the vehicle, prohibition of brake release, prohibition of opening of the throttle is output to the vehicle control device. The drunk driving prevention system according to claim 1, further comprising a control means. A drunk driving prevention system for determining a drunk state of a vehicle user when the vehicle is started and controlling to permit or prohibit the driving of the vehicle based on the determination result,
Position detecting means mounted on the vehicle and measuring a vehicle position;
An area determination unit that compares the vehicle position measured by the position detection unit with map information and determines whether or not the vehicle is in an area related to predetermined drinking;
When it is determined by the area determination means that it is within the area, the drinking state determination means that determines the drinking state of the vehicle user more times than when determined to be outside the area;
A drunk driving prevention system characterized by comprising:

Images