JP4595504B2 - Adjustable safety device for vehicle movable equipment - Google Patents

Description

  The present invention relates to a safety device in the case of a vehicle equipped with movable equipment that can be adjusted in a preset state for each of a plurality of people, such as an electric seat, in the case of adjusting the movable equipment. Is.

The electric seat of the vehicle stores the drive position for a plurality of drivers, that is, the front and rear position and height position of the seat, and the reclining angle of the backrest, and the stored data when the driver operates his / her position switch. Based on the above, each part of the sheet is adjusted.
With this electric seat, if the driver sits on the seat and tries to reproduce his / her own drive position, if the other person's position switch is accidentally operated, the seat may move forward and The gap between them becomes narrow, and you may be forced into a cramped posture. In such a case, since the stop switch is provided on the operation panel of the electric seat, the drive motor of the electric seat can be stopped by pressing the stop switch.

However, since the stop switch is small, there is a problem that it cannot respond quickly. Therefore, Patent Document 1 describes that when a brake pedal or a horn, for example, other than the stop switch on the operation panel is operated, a stop signal is output therefrom to stop the drive motor of the electric seat.
JP 63-106149 A

  It is the first time that the driver feels that the distance to the steering wheel will be narrow and that the driver will stop the operation to reproduce the drive position reproduction operation (seat adjustment operation) of the electric seat by operating the brake pedal or horn. It leads to the operation of the brake pedal and horn. For this reason, the problem of not being able to respond quickly to danger remains.

  The present invention has been made in view of the above circumstances, and its object is to provide a vehicle equipped with movable equipment that can be adjusted in a preset state for each of a plurality of persons such as an electric seat. It is an object of the present invention to provide an adjustment safety device for movable equipment of a vehicle that can quickly cope with when the vehicle approaches.

The invention of claim 1 is a voice input means, an emergency voice judgment means for judging whether or not the voice inputted to the voice input means is an emergency voice, and the emergency voice judgment means is an emergency voice. Equipment control means for stopping the adjustment operation of the movable equipment when it is determined that the sound is the voice of the above.
According to this configuration, when the danger is imminent, the adjustment operation of the movable equipment can be stopped according to the sound that is conditioned reflexively (sound in an emergency), so it is possible to respond quickly to the danger. .

  According to the invention of claim 2, when the voice recognition device detects an emergency voice, after the adjustment operation of the movable equipment is stopped, the movable equipment is operated in the direction opposite to the adjustment operation direction before the stop. Therefore, for example, in the case of an electric seat, it is possible to prevent the driver from becoming cramped due to a narrow gap between the backrest and the steering wheel.

In the invention of claim 3, since the emergency voice judging means is composed of a voice recognition device, the emergency voice can be more clearly discriminated from other voices and the adjustment operation of the movable equipment can be stopped in an emergency. .
In the invention of claim 4, since the voice recognition device provided in the other in-vehicle device is used for the emergency voice judgment means, it can be configured at low cost.
In the invention of claim 5, since the emergency voice judgment means determines whether or not the voice input to the voice input means is an emergency voice only when the movable equipment is being adjusted. It is possible to eliminate the unreasonableness that the emergency voice determination means is functioning even though the movable equipment is not in the adjustment operation and there is no risk of a dangerous state.

  In the invention of claim 6, the voice recognition device constituting the emergency voice judgment means includes a plurality of voice recognition dictionaries including the emergency voice dictionary, and when the movable equipment is in the adjustment operation, the emergency voice judgment means On the other hand, since the voice input to the voice input means is controlled so as to be collated with the emergency voice dictionary, the movable equipment is not in the adjustment operation and the in-vehicle device does not cause a dangerous state. It is possible to eliminate the waste that the voice recognition device collates an emergency speech dictionary that is originally unnecessary for the in-vehicle device.

An embodiment of the present invention will be described below with reference to the drawings. This embodiment is applied to an electric seat (movable equipment) of a vehicle.
FIG. 3 shows the electric seat 1 on which the driver of the vehicle sits, and FIG. 2 is a block diagram of the driving device 2 of the electric seat 1. As shown in FIG. 3, the electric seat 1 includes a seat portion 3 and a backrest portion 4, and the seat portion 3 can be adjusted in the front-rear direction position and the height direction position as indicated by a broken line and a two-dot chain line. The backrest 4 is adjustable in reclining angle. These adjustment operations are performed by the motor unit 5 shown in FIG.

  As shown in FIG. 2, the drive device 2 for the electric seat 1 includes an operation switch group 6, a control circuit 7 as an adjustment operation control means, a memory 8, a drive circuit 9, and the motor unit 5 described above. Although not shown, the operation switch group 6 is a drive position teaching switch for teaching the drive position of the electric seat 1 (the longitudinal position of the seat portion 3 and the reclining angle of the backrest portion 4) for each of a plurality of drivers. A drive position reproduction switch, a drive position reproduction operation stop switch, and the like determined for each of a plurality of drivers are provided.

  The control circuit 7 controls the entire drive device 2 in an integrated manner. The drive position taught by the drive position teaching switch is stored in the memory 8 for each driver, and the drive position reproduction switch is operated. At this time, the drive position data of the operated driver is read from the memory 8 and supplied to the drive circuit 9. The drive circuit 9 outputs a drive signal to the motor unit 5 based on the given drive position data. The motor unit 5 drives the motor based on the drive signal from the drive circuit 9, moves the seat portion 3 of the electric seat 1 back and forth, up and down, and rotates the backrest portion 4 to change the reclining angle.

  FIG. 1 is a block diagram showing an electrical configuration of an in-vehicle device, for example, a car navigation device 11, connected to the driving device 2 of the electric seat 1 by a signal line 10. As shown in FIG. 1, a car navigation device 11 includes a position detection device 12, a map data input device 13, an operation switch group 14, a remote control sensor 15, a voice control unit 16, for example, a display device 17 comprising a liquid crystal display, an external memory, and the like. 18, transmitter / receiver 19, control device 20 to which these are connected, speaker 21 and voice recognition device 22 as voice output means connected to voice control unit 16, and voice input means connected to this voice recognition device 22 A remote controller 24 that is paired with a microphone 23 and a remote controller sensor 15 is provided.

  Among them, the position detection device 12 detects a GPS receiver 25 for GPS (Global Positioning System) that detects (positions) the position of the host vehicle based on a radio wave transmitted from an artificial satellite for GPS, and detects a rotational angular velocity of the host vehicle. A gyroscope 26, a distance sensor 27 for detecting the travel distance of the host vehicle, and a geomagnetic sensor 28 for detecting the direction. Since these sensors have errors of different properties, they are configured to be used while being complemented by a plurality of sensors.

  The map data input device 13 comprises a drive device for inputting data from a storage medium storing various data including road map data and so-called map matching data for improving the accuracy of position detection. As the medium, for example, a large-capacity storage medium such as a CD-ROM or DVD is used. At this time, the data includes voice data for route guidance and the like to be described later. The road map data includes data such as road shape, road width, road name, building, various facilities, their telephone number, place name, and topography, and the road map is displayed on the display screen of the display device 17. It includes data for playback.

  The operation switch group 14 is provided on the screen of the display device 17, various mechanical switches for the user to input various commands such as designation of a destination and selection of a road map displayed on the display device 17. Touch panel. The external memory 18 stores data on the route to the destination set by the control device 20 during route guidance.

  A road map of various scales is displayed on the screen of the display device 17, and a pointer indicating the current position and traveling direction of the vehicle is displayed so as to be superimposed on the display. In addition, various input screens for the user to input a destination, various messages, information, and the like are also displayed. Furthermore, when a route guidance function for guiding to a destination is executed, a route to be overlapped on a road map is displayed. The transceiver 19 receives transmission data from a transmitter such as an optical beacon or a radio beacon provided along a road, or FM multiplex broadcasting.

  The control device 20 is mainly composed of a microcomputer comprising a CPU, ROM, RAM, etc., and displays a road map on the display device 17 based on the road map data from the map data input device 13 as described above. In addition, a pointer indicating the current position and the traveling direction of the vehicle is displayed based on the detection by the position detection device 12. At this time, map matching is performed in which the current position of the vehicle is placed on the road. Further, based on the user's command input, the type (scale) of the map displayed on the display device 17 is switched.

  Further, the control device 20 is configured to execute automatic route search and route guidance functions based on a destination input by the user. The automatic route search function automatically calculates a recommended travel route from the current position of the vehicle to the destination input by the user, and the route guidance function is as described above. The travel route is displayed on the screen and guided to the destination, and the voice of the voice control unit 16 is used to output a guidance voice such as “the intersection is 200 m ahead on the left” from the speaker 21. is there.

  The microphone 23 inputs the voice uttered by the user to the voice recognition device 22 as an electrical signal. The speech recognition device 22 collates the speech signal input from the microphone 23 with the lexical data (comparison pattern) in the recognition dictionary stored in the internal storage unit, and the speech with the highest degree of coincidence is recognized as the recognition result. Input to the control unit 16. The voice control unit 16 controls the voice recognition device 22 and outputs the recognition result input from the voice recognition device 22 as a voice from the speaker 21 and inputs it to the control device 20. Based on the recognition result information from the voice control unit 16, the control device 20 performs processing on the voice uttered by the user, for example, map scale change processing, menu display selection processing, destination setting processing, route search processing, route guidance start processing, Performs display screen change processing, volume adjustment processing, etc.

  Now, in this embodiment, when the driver sitting on the electric seat 1 has a dangerous eye when reproducing the drive position for each driver of the electric seat 1 (at the time of seat adjustment operation), for example, “Ah”, When a condition-reflecting voice such as "Wow", "Kyaa", "Tomete", "Itai" is emitted, the voice is recognized and the drive position reproduction operation of the electric seat 1 is forced. To stop. In this case, emergency voice recognition is performed using the voice recognition device 22 of the car navigation device 11.

That is, the recognition dictionary of the speech recognition device 22 includes an emergency speech dictionary in addition to the operation speech dictionary for operating the car navigation device 1. In this emergency voice dictionary, voices that are conditioned reflexively in case of emergency, such as “Ah”, “Wow”, “Kyaa”, “Tome-to”, “Itai” are registered as recognition words. ing.
The control device 20 of the car navigation device 11 and the control circuit 7 of the drive device 2 of the electric seat 1 are connected by the signal line 10 described above, and a plurality of drive position reproduction switches of the operation switch group 6 are operated. Then, the reproduction signal is output from the control circuit 7 of the drive device 2 to the control device 20 of the car navigation device 11 while the drive position is reproduced.

  The control device 20 of the car navigation device 11 functions as an emergency voice judgment function restricting means, and normally, the input voice from the microphone 23 is not checked against the emergency voice dictionary, and only the operation voice dictionary is used. Match. When the reproduction signal is received, the control device 20 instructs the voice recognition device 22 via the voice control unit 16 to check the voice from the microphone 23 against the emergency voice dictionary. Therefore, the control circuit 7 of the drive device 2 functions as a reproduction operation notification unit that notifies the control device 20 of the car navigation device 11 that the electric seat 1 is being reproduced, and the control device of the car navigation device 11 Reference numeral 20 functions as a determination function restricting unit that causes the speech recognition device 22 to collate the input speech with the emergency speech dictionary and determine whether it is an emergency speech during the reproduction operation.

  When the voice recognition unit 22 recognizes that the voice input to the microphone 23 is an emergency voice from the voice control unit 16, the control device 20 generates an emergency to the driving device 2 of the electric seat 1. Output a signal. When receiving the emergency signal, the control circuit 7 of the driving device 2 controls the motor unit 5 to stop and drive in the reverse direction to return to the original drive position.

  Next, the operation of the present embodiment configured as described above will be described with reference to the flowchart of FIG. When driving the vehicle, if the driver sitting on the electric seat 1 feels that his / her drive position is different from his / her own drive position, the operation switch group 6 of the drive device 2 of the electric seat 1 is used to reproduce his / her drive position. , Operate your own drive position reproduction switch. Then, the control circuit 7 transmits a reproduction signal to the control device 20 of the car navigation device 11 (“YES” in step S1 in FIG. 4, step S2).

  Then, the control device 20 of the car navigation device 11 that has received the reproduction signal takes action so that the voice recognition device 22 also collates the voice signal from the microphone 23 with the emergency voice dictionary (emergency voice recognition function) (step). S3). Thereafter, the control circuit 7 of the electric seat and 1 retrieves the driver's drive position data corresponding to the operated drive position reproduction switch from the memory 8 and controls the motor unit 5 via the drive circuit 9 based on the data. Then, the operation for reproducing the drive position is started (step S4).

  If nothing happens during the reproduction of the drive position, the driver does not make an emergency voice, so the electric seat 1 is adjusted to the drive position selected by the driver (“YES” in step S6). . When adjusted to the selected drive position, the control circuit 7 stops the motor unit 10 and stops transmission of a reproduction signal to the control device 20 of the car navigation device 1. Then, the control device 20 of the car navigation device 1 performs a process of stopping the speech recognition device 22 from collating the speech signal input from the microphone 23 with the emergency speech dictionary (ending the emergency speech recognition function). (Step S8), the end.

  By the way, it is assumed that the drive position selected by the driver is that of another person, for example, a driver with a large body has selected the drive position of a small person. Then, the seat part 3 of the electric seat 1 moves forward, and in some cases, the driver's body may feel a danger because the gap between the backrest part 4 and the steering wheel becomes narrow. When meeting the situation in this way, people will be surprised and naturally reflexively utter an emergency voice such as “Wow” or “Kya”.

  The emergency voice is input to the microphone 23 and recognized as the emergency voice by the voice recognition device 22, and the voice control unit 16 is notified that the emergency voice has been recognized ("YES" in step S5). Then, the control device 20 of the car navigation device 11 outputs an emergency occurrence signal to the drive device 2 of the electric seat 1. Thereby, the control circuit 7 of the driving device 2 stops (stops) the seat adjustment to the drive position selected this time by the driver, and controls the motor unit 5 to return to the original drive position (step S7, Step S8). Then, the control device 20 of the car navigation device 11 takes action to end the emergency speech recognition (step S9), and ends.

  As described above, according to the present embodiment, when an emergency voice is emitted at the time of reproduction to the selected drive position, the voice recognition device 22 recognizes this to stop the reproduction operation to that drive position. It is possible to prevent the driver from being in danger. Since this emergency voice is a voice that is naturally reflected when a danger is imminent, the adjustment operation to the live position can be quickly stopped when selected.

Further, in this embodiment, when the emergency sound is issued, the seat adjustment is performed so that the electric seat 1 is returned to the previous drive position, so that the gap between the steering wheel and the backrest portion 4 is narrowed. In such a case, the seat part 3 moves rearward and the backrest part 4 comes away from the body, so there is no fear that the body is forced to take a cramped posture for a long time between the steering wheel and the backrest part 4.

  Furthermore, in this embodiment, the voice recognition device 22 attached to the car navigation device 11 is used for emergency voice recognition for the purpose of operating the car navigation device 11 by voice. It is not necessary to attach a separate voice recognition device.

  In this case, while the electric seat 1 is reproduced at the drive position for each driver, the voice recognition device 22 collates the voice input to the microphone 23 with the emergency voice dictionary, and when the reproduction ends, the emergency voice dictionary Since the collation is stopped, it is possible to eliminate the unreasonableness of collating with the emergency speech dictionary until it is not necessary to recognize the emergency speech.

The present invention is not limited to the embodiment described above and shown in the drawings, and can be modified or expanded as follows.
The voice recognition device is not limited to the car navigation device, and may be configured to use a voice recognition device of another in-vehicle device.
The voice recognition device is not limited to the configuration using another vehicle-mounted device, and may be dedicated to the driving device for the electric seat. In this case, the dedicated voice recognition device includes only the emergency voice dictionary and is configured to stop the drive position reproduction operation of the electric seat when it is detected that the voice input from the microphone is emergency voice. It is.
Even in the case of a dedicated speech recognition device, speech recognition can be configured to be performed only during the drive position reproduction operation. Thereby, even when there is no need for voice recognition, it is possible to eliminate the problem that the voice recognition device operates.
The present invention is not limited to the electric seat, and may be applied when the position of the steering wheel and the tilt angle of the steering shaft are changed for each driver, or when the tilt angle of the electric mirror is changed for each driver.
The emergency voice determination means is not limited to the voice recognition device. Since the voice uttered by a person in an emergency becomes a louder voice than usual, the emergency voice judgment means is constituted by, for example, a sound pressure detection means for detecting the sound pressure level of the voice inputted from the microphone, When a sound with a sound pressure level or higher is input, it may be determined that the sound is an emergency sound. Further, not only the sound pressure level but also the emergency sound may be determined based on the frequency.
When the adjustment operation is stopped halfway (when a dangerous situation occurs), a recurrence prevention function may be provided. As a recurrence prevention function, adjustment function limitation, for example, the forward movement of the electric seat is not automatically performed. It is conceivable to control to move forward again.

1 is a block diagram of an electrical configuration mainly for a car navigation device according to an embodiment of the present invention. The block diagram which shows the electric constitution of the drive device of an electric seat Side view of electric seat flowchart

Explanation of symbols

  In the drawings, 1 is an electric seat (movable equipment), 2 is a drive device, 7 is a control circuit (adjustment operation control means), 11 is a car navigation device (on-vehicle device), 20 is a control circuit (determination function regulation means), Reference numeral 22 denotes a voice recognition device (emergency voice judgment means), and 23 denotes a microphone (voice input means).

Claims (6)

In a vehicle with movable equipment that can be adjusted to be in a preset state for each of a plurality of people,
Voice input means;
Emergency voice determination means for determining whether the voice input to the voice input means is an emergency voice;
An adjustment safety device for a movable equipment of a vehicle, comprising: an adjustment operation control means for stopping the adjustment operation of the movable equipment when the emergency voice judgment means judges that it is an emergency voice.   The adjustment operation control means stops the adjustment operation of the movable equipment after the emergency voice judgment means detects an emergency voice, and then reverses the adjustment operation direction before the stop of the movable equipment. 2. The adjustable safety device for movable equipment of a vehicle according to claim 1, wherein the safety device is operated in a direction.   3. The adjustment safety device for movable equipment of a vehicle according to claim 1, wherein said emergency voice judgment means comprises a voice recognition device.   The said safety | security recognition apparatus is the said speech recognition apparatus of the vehicle-mounted apparatus provided with the speech recognition apparatus, The adjustment safety apparatus of the movable equipment of the vehicle of Claim 3 characterized by the above-mentioned.   A judgment function restricting means for causing the emergency voice judgment means to judge whether or not the voice input to the voice input means is an emergency voice only when the movable equipment is in an adjustment operation; The adjustment safety device for movable equipment of a vehicle according to any one of claims 1 to 3, wherein In the adjustment safety device of the movable equipment for vehicles according to any one of claims 1 to 3,
The voice recognition device of the in-vehicle device provided with the voice recognition device as the emergency voice judgment means,
The on-vehicle device speech recognition device includes a plurality of speech recognition dictionaries including an emergency speech dictionary,
Whether or not the voice recognition device is an emergency voice by collating the voice input to the voice input means with the emergency voice dictionary only when the movable equipment is in an adjustment operation. An adjustment safety device for movable equipment of a vehicle, characterized in that determination function restricting means for making a determination is provided.

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