JPH07237497A - Vehicle warning device - Google Patents

Abstract

PURPOSE:To prevent a person, given an alarm, from being puzzled, in a vehicle warning device for generating the alarm by a sound or voice against the person in a vehicle (for instance, driver) and the person in the periphery of the vehicle. CONSTITUTION:In a vehicle warning device for performing an alarm by generating an alarm sound or alarm voice from an in-car warning speaker 20 and from an out-car warning speaker 21 based on a detection signal from alarm condition detecting sensors 3 to 4, an operating condition of a vehicle is detected by a signal from a car speed sensor 1 and a gear position sensor 2. An alarm operation priority order table corresponding to the operating condition is selected from an alarm operation priority order table storage part 19, and the alarm performed by the alarm voice is set to only one alarm with the order in the host in the alarm operation priority order table. The other alarm is performed by the sound. Since the alarm performed by the voice is only a single one, a person given by the alarm can cope with it without being puzzled. By selecting the alarm having a high degree of importance in accordance with the operating condition of the vehicle, the person corresponds first relating to the importance, to make the correspondence also proper.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a vehicle alarm device for issuing a sound or voice alarm to a person in a vehicle (eg, a driver) or a person around the vehicle.

[0002]

2. Description of the Related Art In order to improve safety when driving a vehicle, the number of alarms issued by a vehicle alarm device is gradually increasing. Then, there are alarms for the driver and alarms for those around the vehicle. As an alarm to the driver, for example, there is an alarm notifying "Forgetting to fasten seat belt", "Failure to close door" or "Forgetting to pull parking brake (hereinafter, abbreviated as" P / B ")". As an alarm for those around the vehicle, for example, there is an alarm for "turn left".

In recent years, since a voice for warning can be synthesized by a voice synthesizing IC, depending on the type of the warning, a voice is used instead of a sound, or a combination of sound and voice is used. . For example, if you want to warn you to turn left, you will hear the voice "turn left," or "pippi" + "turn left."
There are some things that make a sound after making an alarm sound. Such an alarm is repeatedly issued until it is time to cancel the alarm.

[0004] As conventional documents relating to vehicle alarm devices, for example, Japanese Patent Laid-Open Nos. 56-149232 and 57-
There is a publication such as 167840.

[0005]

[Problems to be Solved by the Invention]

(Problem) In a vehicle alarm system that can output several voice alarms, if multiple alarm situations occur simultaneously, multiple voices will be output in sequence. , The person who was warned was confused for a moment as to what to do, and there was a problem that the response was delayed and he won.

(Explanation of Problems) Generally, human beings can respond relatively quickly when instructed to take one action at a time. However, if you are instructed to take more than one action at a time, for example, a voice warning "Please fasten your seat belt" and a voice warning "Please pull the parking brake" are issued consecutively. Usually thinks which one should be done first, and then does it, causing confusion and delaying the response.

Even if two or more alarm sounds are emitted, it seems to cause the same confusion, but in the case of the alarm sound, a person recognizes the sound and responds after knowing the content of the alarm. Does not know the content of the alarm, so the impression is light,
There is little confusion. However, when an alarm is given by voice, the content of the alarm is directly notified, so that the impression is stronger than that of the sound. Therefore, it is easy to think that you have to deal with both of them immediately, and it is confusing to deal with the situation and you are likely to win.
An object of the present invention is to solve the above problems.

[0008]

In order to solve the above-mentioned problems, the present invention provides a vehicle alarm device for generating an alarm sound or an alarm sound based on a detection signal from an alarm state detection sensor to issue an alarm. A means for detecting an operating state, an alarm activation priority table storing section for storing an alarm activation priority table corresponding to the operating state, and an alarm activation priority table selecting means for selecting an alarm activation priority table corresponding to the operating state. In addition, the alarm issued by the alarm voice includes an alarm voice selecting means for selecting only one alarm having a higher rank in the selected alarm activation priority table.

[0009]

[Operation] An alarm activation priority table is set according to the driving state of the vehicle, and only one alarm with the highest priority in the selected alarm activation priority table is issued by the alarm sound. Then, other alarms are given by alarm sounds. Only one person can be alerted by the alert voice, so the alerted person can respond without confusion. Further, since the alarm having a high degree of importance is selected according to the driving state of the vehicle, the alarm should be dealt with first, and the action is also appropriate. The alarm that does not use the alarm sound is generated by the alarm sound, so that the alarm does not leak.

[0010]

Embodiments of the present invention will now be described in detail with reference to the drawings. FIG. 1 is a block diagram of the vehicle alarm system of the present invention. In FIG. 1, 1 is a vehicle speed sensor, 2 is a gear position sensor, 3 and 4 are alarm state detection sensors, 5 is a control unit, 6 is a detection signal receiver, 7 is an alarm sound generator, 8 is a voice synthesis IC, 9 Is an MPU (microprocessor unit), 10 to 13 are switches, 14 and 1
5 is a synthesizing unit, 16 is a volume adjusting unit, 17 and 18 are amplifiers,
Reference numeral 19 is an alarm activation priority table storage unit, 20 is an in-vehicle alarm speaker, and 21 is an out-of-vehicle alarm speaker.

The vehicle speed sensor 1 and the gear position sensor 2 are provided to provide information for judging the driving state of the vehicle (whether the vehicle is in the back, stopped, or running). If the signal from the gear position sensor 2 indicates that the gear has been applied to the back gear, it is determined that the vehicle is in reverse. If the vehicle speed is not lower than a predetermined low speed (eg, 3 km / hour) without being put into the back gear, it is determined that the vehicle is stopped, and if it is faster than that, it is determined that the vehicle is running.

The alarm state detection sensors 3 to 4 provide information for determining whether or not the vehicle is in a state where an alarm should be issued. These are, for example, a brake switch for a main brake, a brake switch for a parking brake, a door open / close detection switch, a winker operation switch, and the like, which are common to various vehicles. Depending on the type of vehicle, a vehicle specific to that type is also provided.
For example, in the case of a dump truck, it may be a bed operation switch, a cab tilt switch (a switch for tilting the driver's cab), or the like.

The detection signal receiving unit 6 receives signals from the vehicle speed sensor 1, the gear position sensor 2 or the alarm state detection sensors 3-4. The alarm sound generator 7 is a "ping pong",
An alarm sound such as "beep beep" or "beep beep" is generated. When and what kind of alarm sound is generated, MPU9
Directed by. The voice synthesis IC 8 synthesizes a warning voice such as "turn left". The MPU 9 indicates when and what kind of alarm voice is to be synthesized.

The synthesizing units 14 and 15 synthesize both alarm sounds and alarm sounds when they are output. For example,
The warning sound "beep" and the warning sound "turn left" are alternately combined and output. The synthesizing unit 14 is for synthesizing the signal to the in-vehicle alarm speaker 20, and the synthesizing unit 15 is for synthesizing the signal to the out-of-vehicle alarm speaker 21.

The switches 10 to 13 are for the alarm sound generator 7,
It is provided so that the signal from the voice synthesis IC 8 can be supplied only to a necessary place. For example, if the "turn left" alarm is given only to a person outside the vehicle and it is not necessary to give it to the driver, the switches 10 and 11 are turned off and the switches 12 and 13 are turned on. Then,
The alarm "beep" + "turn left" is issued only from the outside alarm speaker 21. Volume adjuster 16
Is to reduce the volume of the alarm issued at night so as not to disturb the neighborhood.

The alarm activation priority table storage unit 19 is composed of a memory, and stores an alarm activation priority table for backing, stopping and running. A specific example of the ranking table is shown in FIG. This is an example of an alarm in the case of a dump truck in which the cab (driver's cab) can be tilted, the loading platform is tilted, and the cab is equipped with an electric curtain.

Each alarm shown in FIG. 2 will be briefly described. While the cab is tilting ... The cab is tilting Back gear input ... The vehicle is back because the gear is in the back. The cargo bed is operating ... The cargo bed is tilted. I forget to open the electric curtain ... When the parking brake is removed The electric curtain is not fully opened. P / B is forgotten to return ... The parking brake is not removed. P / B is forgotten ... The parking brake is not applied.

In any of FIGS. 2A to 2C,
The warning "Cab tilt is in progress" is set as the first operation priority, but it does not necessarily match after the second.
Even with the same warning (for example, a "turn left" warning), since the degree of importance varies depending on the driving state, the ranking is also different. The order in each case is appropriately determined in advance.

This alarm activation priority table is used to limit the number of alarm sounds to one when two or more alarms must be issued simultaneously. For example, it is assumed that it is necessary to simultaneously issue an alarm "being in a cab tilt" and an alarm notifying that "back gear is turned on" at the time of backing. Looking at the table at the time of back in FIG. 2 (a), the rank of "during cab tilt" is first and the rank of "back gear on" is second, so that the warning sound is "during cab tilt" (for example, , "The cab moves" sound) is output. Then, the alarm sound notifying that "the back gear is turned on" (for example, the sound "back gear") is not output. However, "back gear input"
The alarm for notifying is issued by outputting an alarm sound (eg, a beep sound).

The MPU 9 indicates which of the ranking tables stored in the alarm activation priority ranking storage section 19 is to be adopted. The MPU 9 considers the received detection signals (particularly the vehicle speed detection signal and the gear position detection signal),
Judging whether the vehicle is running backward or running, the alarm activation priority table corresponding to it is adopted.

The operation of the MPU 9 is based on the signal received by the detection signal receiving section 6 to determine the driving state (back, stop, running) of the vehicle, and to adopt the alarm activation priority order table suitable for the determined driving state. The control unit 5 determines whether or not a situation that requires an alarm has occurred.
A control command is issued to other constituent elements (for example, the synthesizing unit 14 and the like) inside.

FIG. 3 is a flow chart for explaining the operation of the present invention. Step 1 ... Analyzing various detection signals received by the detection signal receiving unit 6, and if there is an item to be alarmed, it is extracted. For example, if the switch for tilting the bed of the truck is turned on, it is necessary to give an alarm that "the bed is operating". Step 2: Check if the gear is in the back.
This is checked by the signal from the gear position sensor.

Step 3 ... If thrown into the bag,
From the alarm activation priority table stored in the alarm activation priority table storage unit 19, the one for backing is adopted. Step 4 ... If the gear is not put in the back, it is checked whether the vehicle speed is equal to or lower than the predetermined vehicle speed. In this case, the predetermined vehicle speed is set to a vehicle speed (eg, 3 km / hour) that is not recognized as traveling. Step 5: If the vehicle speed is equal to or lower than the predetermined vehicle speed, it is determined that the driving state is “at the time of vehicle stop”, and the one for the time of vehicle stop is adopted from the alarm activation priority table storage unit 19. Step 6 ... If the vehicle speed is higher than the predetermined vehicle speed, it is determined that the driving state is “during traveling”, and the one for traveling is adopted from the alarm activation priority table storage unit 19.

Step 7 ... When a plurality of alarms are required to be issued at the same time, and there are two or more alarm voices prepared, the highest priority is given in the adopted alarm activation priority table. Only one thing in
Select it as an alarm to be output as an alarm sound. Step 8 ... Select an alarm sound (predetermined) corresponding to the alarm to be issued. For example, "Pippi" is selected for a left-turn alarm, and "ping-pong" is selected for an alarm during bed operation. When a plurality of alarms must be issued at the same time, only one of them is sounded by an alarm sound and the other is sounded by an alarm sound.

Step 9 ... When there are a plurality of alarms, the order of outputting alarm sounds and alarm sounds corresponding to them is determined. Step 10 ... The voice synthesizing IC 8 is set so as to generate an alarm voice corresponding to the alarm selected in Step 7. Step 11 ... Set the alarm sound generator 7 so as to generate an alarm sound corresponding to the alarm selected in Step 8. Step 12 ... Outputs an alarm sound and an alarm sound in the order determined in Step 9.

[0026]

As described above, according to the vehicle alarm system of the present invention, the alarm operation priority order table is set according to the driving state of the vehicle, and the alarm issued by the alarm sound is the selected alarm operation priority order. Only one alarm with the highest ranking in the table will be given, and other alarms will be sounded. Therefore, only one alert is given by the alert voice, and the alerted person can respond without confusion and the response is not delayed. Further, since the alarm having a high degree of importance is selected according to the driving state of the vehicle, the alarm should be dealt with first, and the action is also appropriate. Further, since the alarm which does not use the alarm sound is issued by the alarm sound, the alarm does not leak.

[Brief description of drawings]

FIG. 1 is a block diagram of a vehicle alarm device according to the present invention.

FIG. 2 is a diagram showing an example of an alarm activation priority table used in the present invention.

FIG. 3 is a flowchart explaining the operation of the present invention.

[Explanation of symbols]

DESCRIPTION OF SYMBOLS 1 ... Vehicle speed sensor, 2 ... Gear position sensor, 3, 4 ... Alarm state detection sensor, 5 ... Control unit, 6 ... Detection signal receiving part, 7 ... Warning sound generator, 8 ... Voice synthesis IC, 9 ...
MPU, 10 to 13 ... Switch, 14, 15 ... Synthesizing unit,
16 ... Volume control unit, 17, 18 ... Amplifier, 19 ... Alarm activation priority table storage unit, 20 ... In-vehicle alarm speaker, 21
… Speaker for external warning

Claims (1)

[Claims] 1. A vehicle alarm device for generating an alarm sound or an alarm sound based on a detection signal from an alarm state detection sensor to issue an alarm, and means for detecting a driving state of a vehicle,
An alarm activation priority table storage unit storing an alarm activation priority table corresponding to an operating state; and an alarm activation priority table selecting unit for selecting an alarm activation priority table corresponding to an operating state,
A vehicle alarm device, comprising: an alarm sound selection means for selecting only one alarm having a higher rank in the selected alarm actuation priority table as an alarm sound.