JP2593725B2 - Automotive information display device - Google Patents

Description

Description: BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an information display device for a vehicle used for displaying information for an advertisement.

<Prior Art> Conventionally, as an outdoor advertising method, there is a method using a business vehicle such as a taxi. That is, a sticker on which the advertising text is printed is attached to the rear window of the taxi so that the advertising content can be confirmed from behind the vehicle.

<Problems to be Solved by the Invention> However, in such an advertisement by print display, not only is there little irritation to the sight and the advertising effect is poor, but also because the sticker is replaced every time the contents of the advertisement are changed, the rear window is not used. There is a problem such as soiling the glass surface.

SUMMARY OF THE INVENTION The present invention has been made in view of the above problems, and has as its object to provide an information display device for a vehicle, which has an improved advertising effect and does not have a possibility of soiling a rear window.

Another object of the present invention is to provide an information display device for a vehicle which also realizes a problem of safety associated with improvement of the advertising effect, that is, security of a following vehicle.

<Means for Solving the Problems> An information display device for a vehicle according to the present invention includes: a driving operation detector that detects a predetermined driving operation by a driver and outputs a detection signal; And a display device for displaying free information other than the above. The display device includes a display device positioned and positioned with a display screen facing rearward in an appropriate place of an automobile, a memory storing display data of the operation information and display data of the free information, and displaying operation information from the memory. A display control circuit for selecting and reading any of the data and the display data of the free information and displaying the selected data on the display. The display control circuit reads out display data of free information from the memory when the detection signal is not input from the driving operation detector and causes the display to display the data, and operates from the memory when the detection signal is input from the driving operation detector. The information display data is read out and displayed on the display.

<Operation> In a normal driving state in which the driver does not perform any special driving operation, since the detection signal from the driving operation detector is not input to the display control circuit, the free information is displayed on the display, but the driver does not brake. When a signal or a turn signal is operated, the detection signal from the driving operation detector is input to the display control circuit to switch the display content of the display, and the operation information corresponding to the operation is displayed on the display. Is done.

If the advertising text is displayed on the display as free information, the visual stimulus of the viewer is strongly stimulated and the advertising effect is enhanced. In addition, when the brake or the like is operated, the display is switched to that effect, so that attention is drawn to the following vehicle, a rear-end collision is prevented from occurring, and safety for the following vehicle is also ensured.

<Embodiment> Fig. 1 shows a situation where an information display device for a vehicle according to an embodiment of the present invention is mounted on a vehicle 2 such as a taxi.

In the illustrated example, a display 4 is provided at a rear position in the cabin of the vehicle 2, and the display screen is positioned and fixed to the rear window 3 so that the display content can be confirmed from behind the vehicle 2. The display 4 may be disposed outside the vehicle 2 such as on the upper surface of the body, in addition to being disposed inside the vehicle 2.

The vehicle information display device according to the present invention comprises a display device 1 including the display device 4 and a driving operation detector such as a brake operation detector and a direction indicating operation detector described later. 1 shows the configuration of the display device 1 and a card reader 6 as its peripheral device.

The display device 1 includes a display device 4 and a control device 5, and the control device 5 is configured by a microcomputer having a CPU 7 shown in FIG. The card reader 6 is a magnetic card reader in this embodiment, and is provided at an appropriate place in the vehicle 2.

The card reader 6 has a groove 9 for inserting and sliding the magnetic card 8 on the upper surface, and a magnetic head for reading recorded information of the magnetic card 8 is provided in the groove 9.

The magnetic card 8 has a band-shaped information recording unit 10 on one surface, and predetermined data can be read from and written to the information recording unit 10 by a magnetic method. In the case of this embodiment, in addition to the specified data described later, data necessary for determining the authenticity of the card and the validity period are recorded. The information recording unit 10 of the magnetic card 8 is
When the magnetic card 8 is slid while being inserted into the groove 9, the information recording unit 10 comes into contact with the magnetic head and relatively moves, so that data is read.

As shown in FIG. 3, the control device 5 sends a bus 19 to the CPU 7.
This is a known configuration in which a ROM 11 and a RAM 12 are connected via a CPU. The ROM 11 stores programs and fixed data, and the RAM 12 is used for a work area.

A display circuit 15 is connected to the bus 19 via a graphic controller processor 13 and a display interface 14 which constitute the display 4, and a card reader 6 is connected via an I / O interface 16.

The graphic controller processor 13 is for executing drawing processing on the display screen at high speed, reads display data from any of the video memories 17 and 18, and draws information contents on the display 4 via the display circuit 15. .

On the other hand, the display data of the advertisement information for a plurality of advertisers is stored in separate areas in the video memory 17, and the display data of the advertisement information can be read out by specifying the address of the area. FIG. 4 shows an example of the contents stored in the video memory 17, and each of the storage areas 0 to 5 stores advertisement display data from company A to company F.

The information recording unit 10 of the magnetic card 8 has a video memory 17
When the card reader 6 reads the specified data, the CPU 7 sets an area corresponding to the specified data. The display data of the advertisement information in the area is read by the graphic controller processor 13 by designating the address.

Display data of operation information relating to the driving operation is stored in a separate area in the other video memory 18, and the operation information can be similarly read out by specifying the address of the area. Here, the operation information includes information indicating that a brake operation has been performed, information indicating that the direction indicator has been operated left and right, and the like, as shown in FIG.
Each of the areas stores display data relating to a brake operation and a direction instruction operation.

These brake operation and direction instruction operation are detected by a brake operation detector 20 and a direction instruction operation detector 21, and the detection signal is taken into the CPU 7 from the I / O interface 22 via the bus 19. The brake operation detector 20 can be constituted by a stop switch provided at the position of the brake pedal, and the direction indicating operation detector 21 can be constituted by a switch mechanism incorporated in the direction indicator.

 FIG. 6 shows the configuration of the display screen of the display unit 4.

This display screen is configured by arranging a plurality of display panels 23 in a line. A large number of light emitting diodes (hereinafter, referred to as “LEDs”) 24 are arranged and arranged in a matrix on each display panel 23, and a series of display screens is formed by aligning a matrix of LEDs on the display panel 23. . The display 4 is not limited to such a configuration, and may use a CRT or the like.

Each display panel 23 is connected to a display circuit 15 including a matrix circuit 25 and two drivers 26 and 27, as shown in FIG. The matrix circuit 25 is formed by connecting all the LEDs 24 in a matrix. Each of the LEDs 24 is scanned by the drivers 26 and 27 to form an image on the entire screen.

One driver 26 receives an address signal from the display interface 16 and sequentially activates the columns of the trix circuit 25. The other driver 27 includes a shift register (not shown), and outputs the data of each bit in parallel while serially inputting display data and performing a shift operation. Also driver
27 is input with an enable signal, a latch signal, and a clock signal. The enable signal sequentially activates the rows of the matrix circuit 25, and applies display data to the LED 24 corresponding to the intersection of the row and the column activated by the driver 26 to perform a light-on or light-off operation. The latch signal latches the lighting state of the LED 24 for each row, and the clock signal gives a timing for shifting the shift register.

FIG. 8 shows the flow of the operation of the information display device for a vehicle, and the operation of this embodiment will be described below with reference to FIG.

First, when the engine of the automobile is started, the determination in step 1 (shown as “ST1” in the figure) of the figure becomes “YES”,
In the next step 2, the presence or absence of a direction instruction operation is checked, and in the following step 3, the presence or absence of a brake operation is checked.

If neither operation has been performed, step 2,
3 is "NO", the process proceeds to step 4, and the display 4 of the display device 1 displays an advertisement. In this case, for example, in order to display the advertisement information of the company A on the display 4, the advertisement display data of the company A is recorded by using the magnetic card 8 in which the designation data for designating the 0th area in the video memory 17 is recorded. Will be performed in advance.

That is, when the magnetic card 8 is engaged in the groove 9 of the card reader 6 and slid, the designated data recorded in the information recording section 10 by the magnetic head in the groove 9 is read. The designated data is taken into the CPU 7 via the bus 9, and the CPU 7 causes the graphic controller processor 13 to read the company A advertisement display data stored in the 0th area from the video memory 17 and display it on the display 4. It is.

Returning to FIG. 8, if the determination of “whether there is a direction instruction operation?” In step 2 is “YES”, the flow proceeds to step 5;
The display screen of the display 4 displays a direction instruction operation as shown in FIG. 9 (1). That is, when the direction indicator is operated, a detection signal output from the direction indicator operation detector 21 is output.
The CPU 7 reads the rightward or leftward instruction display data from the video memory 18 by the graphic controller processor 13 and causes the display 4 to display the instruction display data. Note that, in FIG. 9, the hatched portions indicate the lighting locations of the LEDs 24.

If the determination of "whether there is a brake operation" in step 3 is "YES", the process proceeds to step 6, in which the CPU 7 starts an internal timer and turns on the display device 1 for a fixed time until the time is up. The display 4 is caused to display a brake operation as shown in FIG. 9 (2) (step 7,
8). That is, when the brake pedal is operated, a detection signal output from the brake operation detector 20 is taken into the CPU 7, and the CPU 7 causes the graphic controller processor 13 to read the brake operation display data from the video memory 18 and display it on the display unit 4. Is displayed.

When the turn signal returns to its original state, or when the timer expires and the CPU 7 resets the timer (step 9), the CPU 7 switches the display operation of the display 4 from the operation display to the advertisement display.

In order to switch the advertisement display on the display 4 to that of another company (for example, company B), a magnetic card 8 on which designation data for designating a first area in the video memory 17 is prepared, and this magnetic card 8 is It is engaged in the groove 9 of the card reader 6 and slid similarly.

In the above embodiment, a relatively inexpensive magnetic card is used as a recording medium for designated data. However, the information recording medium is not limited to a magnetic card, but may be an IC card or an optical card.

<Effects of the Invention> As described above, the present invention enables the display screen to be positioned and arranged on the display with the display screen facing backward in the appropriate place of the car and to display the display data of the free information on the display. By mounting an automotive information display device on a business vehicle such as a taxi, and displaying advertisement text on the display as free information display data, the visual stimulus of the viewer can be strengthened and compared to stickers etc. It can greatly increase the advertising effect. Further, since the sticker is not attached to the rear window of the vehicle as in the case of a sticker, there is no possibility that the replacement of the sticker will cause contamination of the glass surface.
In addition, during normal driving of the automobile, a detection signal from the driving operation detector is not input to the display control circuit, and display data of free information is always displayed on the display, so that the advertising effect can be further enhanced.

In addition to display data of free information, display data of operation information related to driving operation is prepared, and when the driver operates the brake, turn signal, etc., the display data of operation information according to the operation is displayed Since the warning message is displayed on the display, attention can be given to the following vehicle, a rear-end collision accident can be prevented, and safety for the following vehicle can be ensured.

[Brief description of the drawings]

FIG. 1 is an external view showing an embodiment of the present invention, FIG. 2 is a perspective view showing a configuration of a display device, FIG. 3 is a block diagram showing an example of a circuit configuration of the present invention, and FIGS. FIG. 6 is a front view showing a configuration of a display screen, FIG. 7 is a block diagram showing a configuration of a display circuit, and FIG. 8 is a flowchart showing an operation procedure of the apparatus of the present invention. FIG. 10 is an explanatory diagram showing a display example of the display unit in FIG. DESCRIPTION OF SYMBOLS 1 ... Display device 4 ... Display device 5 ... Control device 7 ... CPU 13 ... Graphic controller processor 15 ... Display circuit 17 ... Video memory 20 ... Brake operation detector 21 ... Direction indication Operation detector

Claims (1)

(57) [Claims] 1. A driving operation detector for detecting a predetermined driving operation by a driver and outputting a detection signal, and a display device for displaying operation information relating to the driving operation and other free information. The display device includes a display device positioned and positioned with a display screen facing rearward in an appropriate place of a vehicle, a memory storing display data of the operation information and display data of the free information, and A display control circuit that selects and reads one of display data and display data of free information and displays the read data on the display, wherein the display control circuit does not input a detection signal from the driving operation detector. When the display data of the free information is read out from the memory and displayed on the display, and when the detection signal is input from the driving operation detector, the display data of the operation information is read out from the memory. Automotive and displays on the display unit Te information display device.