JPS6326955B2 - - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a multi-operation switch device for a vehicle for centrally operating in-vehicle equipment such as a car radio and an air conditioner. Commonly known multi-operation switches include, for example, U.S. Pat. No. 3,560,675
There are No. 3641299, etc.

The inventors of the present application have discovered that the air conditioner to be operated,
The types of in-vehicle devices such as radios and fender mirrors are displayed on the display screen, and one of the displayed in-vehicle devices is connected to a corresponding switch panel (which is provided in front of the display screen and has multiple switch parts). ,
When you press and select the switch part (which is also transparent), each operation item of the selected in-vehicle device will be switched and displayed on the above display screen, and the switch on the switch panel corresponding to each of the displayed operation items will be displayed. A multi-operation switch device for a vehicle is proposed in which when a part is pressed and selected, an operation corresponding to the operation item of the selected in-vehicle equipment is performed.

With such a device, even if the number of in-vehicle devices to be operated and the number of operation items increase, multiple devices can be operated with one display device and switch panel by switching the display image, thereby saving space for installing various switches. It has excellent operability because it saves time and can be operated centrally in one place.

By the way, in the above multi-operation switch device,
When attempting to operate an in-vehicle device such as an air conditioner or a car radio, first operate a switch to select the type of in-vehicle device, switch to the screen displaying the operation items for the device you are trying to operate, and then select the necessary operation item. For example, in the case of a car radio, the user operates a switch that corresponds to the display of volume up or down, channel selection, etc.

Therefore, when trying to operate a load,
The switch must be operated twice, and if you are concentrating on driving, you may not be able to operate the switch twice in succession while looking at the screen.
It may take time to operate the load.

Therefore, in order to solve the above-mentioned problems caused by switch operation, it is conceivable to use a voice recognition device that recognizes the driver's voice command corresponding to the display on the display screen and automatically operates the load. However, if you try to operate such a multi-operation switch using voice recognition, you will need a device that recognizes at least 30 to 40 voice commands, such as operating an air conditioner, car radio, or fender mirror, which is complicated for a vehicle. The problem is that it's too much.

The present invention has been made in view of the above, and in order to improve operability, when a voice command is given for any of the types of in-vehicle equipment displayed on the screen, a screen displaying the operation items of the in-vehicle equipment that has been commanded is displayed. When a switch corresponding to an operation item on the switched screen is selected and operated, an operation corresponding to the commanded type of equipment and the selected operation item is performed.

The present invention will be explained below based on the drawings.

FIG. 1 is a block diagram showing one embodiment of the present invention. First, the structure will be explained. Reference numeral 10 is a transparent switch panel provided in front of the CRT display 20 and having a large number of switch parts. FIGS. 2 to 5 show this switch panel 10 together with an image displayed on a display screen of a CRT display. In other words, switch panel 1
10A to 10P located at 0 are switch parts, and numbers and letters are displayed on the CRT display screen.
Since the switch panel 10 is transparent, it is visible through the lens. FIG. 2 shows the types of in-vehicle equipment, and FIGS. 3, 4, and 5 show the display of each operation item for the car radio, mirror, and air conditioner, respectively. To explain the configuration with reference to FIG. 1 again, the output of the switch signal from the switch panel 10, that is, the output of the switch signal from each switch section 10A.
The lead wires 11A to 11P drawn out from the switch parts corresponding to 10P are connected to the encoder circuit 3.
Input connected to 0. This encoder circuit 30 has lead wires 11A to 11A from the switch panel 10.
In addition to 11P, a page designation signal line 61 is connected, and the page designation signal from the signal line 61 is
Since the signal represents the type of display image displayed on the CRT display 20, the encoder circuit 30 outputs a pulse encoded signal based on the page designation signal and the switch signal. and
When each operation item of one of the in-vehicle devices is displayed on the CRT display, the decoder circuit 40
It decodes the pulse encoded signal transmitted from the encoder circuit 30 and outputs a signal for operating a predetermined drive circuit (for example, 50) based on the page signal and switch signal.

The speech recognition device also includes a microphone 90, an A/D converter 100, a formant detection device 110, a memory 120, a template memory 130, a comparison circuit 140, and a control circuit 150. Display switching signal Page switching signal line 4
Output via 1.

Next, the configuration of arithmetic processing by the microcomputer 60 will be explained.
consists of a CPU (central processing unit) with program calculation functions, random access memory (RAM) for data storage, read-only memory (ROM) that stores processing programs, input/output interfaces (INPUT, OUTPUT), etc. has been done.

Furthermore, 70 is a buffer memory with a capacity of 4K bytes, and its memory area is, for example, 0, 1, or 1, depending on the type of image displayed on the CRT display 20.
Four page memory areas P0, P for pages 2 and 3
For example, the 0 page memory area P0 stores image data representing the type of in-vehicle equipment corresponding to the display address on the display screen, and the remaining 1 to 3 page memory areas P1 to P3 are divided into 1, P2, and P3. P
3 stores image data of each operation item predetermined for each vehicle-mounted device in correspondence with the display address. Reference numeral 71 is a selector circuit, which selects a "display mode" for outputting the page information of the buffer memory 70 for display on the CRT display 20 and a "CPU mode" for writing/reading from the microcomputer 60 at a predetermined cycle. Switch with .
This switching cycle is determined by using the horizontal sweep time of the CRT display 20 as the "display mode" and the blanking time, which is the horizontal and vertical blanking period, as the "CPU
``mode''.

72 is a display address counter that sequentially specifies the address of the CRT display screen to be displayed in the display mode; 74 is a display control circuit that generates horizontal and vertical periodic signals generated by the television timing generator 77 and a clock generation circuit; The X and Y addresses of the display screen of the CRT display 20 are controlled by timing pulses corresponding to the minimum pixel output by the CRT display 20.

Further, 75 is a shift register that converts image data output in parallel from the buffer memory 70 into serial data, 76 is a high frequency modulation circuit, and 21 is an image receiving circuit.

On the other hand, 73 is a cursor address counter that specifies an address to be written to or read from buffer memory 70 by microcomputer 60 in CPU mode. Note that the cursor address is the microcomputer 60 address.
A memory address that can be written to or read from. Further, 79 is a gate circuit, which is used by the microcomputer 60 to read data from the buffer memory 70.

In the display device used in the present invention, in the display mode, the display address counter 7
2, the data written in the buffer memory 70 is sequentially sent to the shift register 75 and converted into serial data.
The image is displayed on the CRT display 20, while the CPU
In this mode, data can be written to or read from any address in the buffer memory 70 using a cursor address specified by the X and Y addresses from the microcomputer 60. In addition, 80
is a clock signal generating device, and the clock signal output from this device sequentially writes the time to a predetermined address of page 0 P0 of the buffer memory 70. Therefore, when FIG. 2 is displayed, the switch part 10A , 10B, 10E, and 10F, the time is updated and displayed.

Next, the operation of the above embodiment will be explained. Each page memory area P0 (0 page), P1 (1 page), P2 (2 page), P3 of buffer memory 70
(3 pages), for example, the 2nd, 3rd,
It is assumed that image data for displaying display images as shown in FIGS. 4 and 5 has been written.

In addition, "11:58" shown in Figure 2 indicates the time, and the switch parts where nothing is displayed in Figures 4 and 5 (switch parts indicated by broken lines) are as follows: In this embodiment, it is not used as a switch. Therefore, first of all, in a steady state, the display screen of the CRT display 20 has a second
The image shown in the figure is shown, and when the driver attempts to operate the car radio, which is one of the in-vehicle devices, the driver emits the sound "radio".
Then, this voice is input to the microphone 90, and the voice is converted into a digital signal by the A/D converter 100. This signal is input to a formant detection device 110 consisting of at least eight bandpass filters tuned to the formant frequency band of the human voice, converted into the intensity of each frequency component, and output to a memory 120. At this time, the control circuit 150 stores the intensities of formant frequency components of sounds such as "radio" and "air conditioner" in advance in the template memory 130.
A signal is outputted to cause the comparison circuit 140 to sequentially output the information recorded in the template memory 130. Comparison circuit 140 includes memory 120
The intensities of the formant frequency components of the template memory 130 and the template memory 130 are compared, and if they match, the control circuit 15
Outputs a match signal to 0. Since the strength of the formant frequency component of the sound of "radio" is currently recorded in the memory 120, the template memory 13
0 outputs the intensity information of the formant frequency component of the voice of "radio" to the comparison circuit 140 by the output from the control circuit 150. Since a coincidence signal is output from the comparison circuit 140 to the control circuit 150, The audio signal "Radio" is sent to the control circuit 15.
Recognized as 0. Therefore, the control circuit 150 outputs a signal to the microcomputer 60 via the display page switching signal line 41 to switch the display on the CRT display to one page (FIG. 3). When microcomputer 60 receives this page switching signal, it outputs a signal specifying one page memory area P1 of buffer memory 70 to display address counter 72 and encoder circuit 30 in CPU mode. Therefore, the display address counter 72 sequentially specifies the addresses of the one-page memory area P1 of the buffer memory 70, outputs the image data written in the area P1 to the shift register 75, and outputs the image data written in the area P1 to the high frequency modulation circuit 76 and the image receiving circuit 21. The radio control image shown in FIG. 3 is displayed on the CRT display 20 via the CRT display 20. When FIG. 2 is displayed, for example, when displaying each radio operation item, the switch part 10C where "RADIO" is displayed in FIG. In this embodiment, it is also possible to display FIG. 3 on the CRT display by pressing any one of 10D, 10G, and 10H.

Next, in order to turn on the radio, the switch part 10M of the operation panel 10 shown in FIG.
When pressed, the switch signal corresponding to the switch part 10M is input to the encoder circuit 30 via the lead wire 11M, and at this time the encoder circuit 3
0 is combined with the 1 page designation signal input via the page designation signal line 61 and output to the decoder circuit 40 . The decoder circuit 40 decodes the signal input from the encoder circuit 30, and
Based on the page designation signal and switch signal, the drive circuit 50 is activated to output to the drive circuit 50 for turning on the car radio, which is assigned in advance, and the input terminal of the electronic tuner etc. becomes ground potential, and the car radio It enters the receiving state. In addition, in FIG. 3, if either the switch part 10E or 10A (switch part for return) is pressed,
Based on the switch signal and 1 page designation signal inputted to the encoder circuit 30, the decoder circuit 40 outputs a signal for switching to page 0 to the microcomputer 60 via the display page switching signal line 41. The display returns to the one shown in FIG. 2, ie, page 0.

On the other hand, when the above figure 3 is displayed, the driver activates the air conditioner.
When the voice is emitted, this voice is transmitted to the microphone 90.
, the voice recognition device operates in the same way as the above-mentioned “radio”, and since the voice signal “air conditioner” is recognized by the control circuit 150, the control circuit 1
50 outputs a signal for switching the display of the CRT display to page 3 (FIG. 5) to the microcomputer 60 via the display page switching signal line 41. Therefore, the CRT display is
The display switches to FIG. 5, that is, the display of each operation item of the air conditioner. When FIG. 5 is displayed in this way, the desired operation regarding the air conditioner can be performed by pressing any switch part in the same way as when turning on the "radio".

FIG. 6 shows another embodiment of the invention. In this embodiment, the display images of a simple vehicular operation type multi-display device are switched by voice. Display panels 180A, 180B, 180
C, 180D have second, third, and
The images shown in Figures 4 and 5 are engraved, and when any of the bulbs 181A, 181B, 181C, and 181D is lit, the image engraved on the display panel corresponding to the lit bulb is displayed on a transparent switch. displayed on panel 10. For example, when you utter the voice "radio" to operate your car radio, the voice is input to the microphone 90, and the first
The voice recognition device performs the same operation as explained in the embodiment shown in the figure, and a signal for switching the display image to each operation item of the radio (FIG. 3) is sent from the control circuit 150 via the drive circuit 160 and the page switching signal line 41. and output to the selector circuit 170. Therefore, the output from the selector circuit 170 causes the valve 18 to
1B lights up, the image engraved on the display panel 180B (Fig. 3) is displayed on the switch panel 10.
will be displayed. Then, in order to turn on the radio, press the switch part 10M in Fig. 3.
A signal is input to the encoder circuit 30 via the lead wire 11M. The encoder circuit 30 sends the above signal and the signal from the page designation signal line 61 (signal for designating each operation item of the radio) to the decoder circuit 4.
Since the decoder circuit 40 operates a predetermined drive circuit 50 based on the above two signals, the radio enters the receiving state. In the case of this embodiment as well, when FIG. 2 is displayed, the displayed image can be switched by pressing any switch part of the switch panel 10 without using voice. . In this case, the encoder circuit 30 has a page designation signal 61 and a lead wire 11A.
Based on the signal input via ~11P,
This is done by inputting a signal for switching to each image output from the decoder circuit 40 to the selector circuit 170 via the drive circuit 161 and the page switching signal line 41.

As explained above, according to the present invention, when a voice recognition device is added to a vehicle multi-operation switch device and each operation item for one vehicle-mounted device from among the vehicle-mounted devices is selectively displayed on the display device. Another advantage is that the display of operation items can be switched by a voice command, and therefore the load can be operated with a single operation, providing an operable multi-display device for a vehicle that is easy to switch. is obtained.

[Brief explanation of the drawing]

FIG. 1 is a block diagram showing one embodiment of the present invention;
2, 3, 4, and 5 are explanatory views showing examples of display images together with a switch panel, and FIG. 6 is a block diagram showing another embodiment of the present invention. 10...Switch panel, 10A to 10P...
Switch part, 11A to 11P...Lead wire, 2
0...CRT display, 21...image receiving circuit,
30...Encoder circuit, 40...Decoder circuit, 41...Display page switching signal line, 50,
51...Drive circuit, 60...Microcomputer, 61...Page designation signal line, 70...Buffer memory, P0 to P3...0 to 3 page memory area, 71...Selector circuit, 72...Display address counter, 73... Cursor address counter, 74... Display control circuit, 75... Shift register, 76... High frequency modulation circuit, 77... Television timing generator, 78... Clock generation circuit, 79... Gate circuit, 80... ...Clock signal generator, 90...Microphone, 100...A/D converter, 110
... Formant detection device, 120 ... Memory, 1
30... Template memory, 140... Comparison circuit, 150... Control circuit, 160, 161... Drive circuit, 170... Selector circuit, 180A-1
80D... Display panel, 181A to 181D...
valve.

Claims (1)

[Claims] 1. A display means that switches between a screen showing the type of in-vehicle equipment and a screen showing the operation items thereof, a switch group having a plurality of switches for operating the above-mentioned operation items, and a switch group having a plurality of switches for operating the above-mentioned operation items; A switching means for switching to a screen representing the operation items of the commanded in-vehicle device when a voice command is given for any of the types of in-vehicle devices, and a switch corresponding to the operation item on the screen switched by the switching means for operation. 1. A multi-operation switch device for a vehicle, comprising control signal output means for outputting an operation command signal according to the type of the commanded device and the selected operation item when the switch is activated.