JPH0134385B2 - - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a destination display device which is installed in a vehicle such as a bus or a train, and which displays the destination of the vehicle to passengers outside the vehicle.

<Background> In conventional buses, trains, etc., the destination name display for passengers outside the vehicle is a mechanical type that prints the destination name on the curtain and selects and controls the display using a motor or the like. Ta. In addition, as a display inside the train, there was a stop name display in the same way as a curtain, but there was a natural limit to the capacity of the curtain to display the name of each stop, so trains were operated on long-distance routes or on multiple routes. To do so, the curtains must be replaced midway through the process, and this work is a heavy burden on the driver, so the reality is that they are not widely used.

For this reason, we proposed in Japanese Patent Application No. 56-140692 ``In-train Display Device'' that the bus stop name be displayed on a dot-type display.

On the other hand, destination name displays also require a great deal of cost and labor to print and replace display characters due to changes in service routes, and they must be replaced all at once on the service date (change date). The reality was that on the day of the change, a large number of people were gathered and worked all night. Furthermore, in order to display a large number of destination names in a subtitle type destination display, the subtitles become extremely long, and it takes a long time to select a display. Furthermore, there were many other problems, such as the need to replace subtitles each time a vehicle equipped with a destination display for a dedicated route was changed to another route.

<Summary of the Invention> The present invention solves the above-mentioned problems. Each dot matrix display constitutes a destination display and a stop name display, and data necessary for displaying these displays is stored in advance. , is stored in the memory section. This memory section includes a character pattern memory that stores character patterns shared by each display item as data, a display code memory that stores character codes that indicate the characters to be displayed for each display item, and a display code memory that stores character codes that indicate the characters to be displayed for each display item. and an operation data memory that sequentially stores display items as codes. This memory section is read out through the controller in response to operation operations, and the display of destination names and stop names is changed at the starting point or via point. Then, the number of characters in the read stop name display data is calculated by the calculation means, and if the calculated value is greater than or equal to the display capacity of the stop name display, it is displayed in a continuous manner, and if it is within the display capacity, it is displayed in a fixed manner. The stop name is displayed on the stop name display by the display means. In this way, the driver's operation becomes significantly easier,
It also has many advantages, such as being labor-saving and making it easy to change routes by changing the memory.

<Example> Next, an example of the present invention will be described with reference to the drawings. In FIG. 1, a destination display 2 and a stop name display 3 are connected to a controller 1. The plurality of terminals 4 of the controller 1 include, for example, in the case of bus operation, a terminal 400 specifies the route to be operated, a switching signal for displaying the stop name is at the terminal 401, and other signals such as an exit signal, a door opening/closing signal, a direction indicating signal, etc. 402, 403,
4XX are respectively input.

The destination display 2 and the stop name display 3 each use a dot matrix display, in which dots are arranged in a matrix as shown in FIG. 2, and characters are displayed by selectively displaying the dots. .

The destination display 2 and the stop name display 3 are arranged back to back as an integrated display 5 as shown in FIG. 3A, and are positioned above the front window of the bus 6, for example, as shown in FIG. 3B. Install it. In that case, the display surface of the destination display 2 faces outward from the bus vehicle 6, and the display surface of the stop name display 3 faces inside the bus. Compared to the installation of the conventional curtain-type destination indicator 7 shown in FIG. 3B, the structure shown in FIG. 3A can significantly reduce the number of installation steps. The separated structure shown in FIG. 2 may be used, and the destination indicator 2 may be installed at the mounting position of the conventional curtain-type destination indicator 7.

The dot matrix structure of the display surface of the destination display 2 or the stop name display 3 is shown in FIG. As an example, if 8 characters can be displayed,
To explain the dot configuration using the generally used 16 x 16 dots that can recognize one kanji character, there are 16 vertical lines from Y ₀ to Y ₁₅ , and horizontal lines are 16 x 16 dots.
X ₀ ~ Xn _-1 = 16 x 8 = 128 lines. As the display element, an electroluminescent type or a mechanical type using a magnetic reversal display element can be used. For example, a mechanical type is used for the destination display 2, an electronic type is used for the stop name display 3, and the number of displayed characters may be changed to six or eight characters.

In addition, in an electroluminescent display tube, the lines Y ₀ to Y ₁₅ are used as electrodes, and the lines X ₀ to _{Xn -1} are used as electrodes, and these electrodes are arranged to intersect, and each intersection point of these is selectively emitted in a dot shape. Display by. In the figure, black dots (•) indicate light-emitting display dots.

An example of the internal configuration of the controller 1 is shown in FIG. In this example, the controller 1 is configured with a microcomputer, and in addition to the central processing unit, so-called CPU 13, that sequentially reads and decodes and executes programs, there is also a memory (ROM) 15 that stores control programs, and various arithmetic processes of the CPU 13. A read/write memory (RAM) 14 used for work and data editing, an input/output port 17 for interfacing with the destination display 2, an input/output port 19 for interfacing with the stop name display 3 is connected to bus 20. A terminal 400 is connected to the bus 20 through the input port 16, to which signals generated based on the operation of the vehicle are applied. Enter/
Output port 18 is for interfacing with message storage section 8 and is connected to bus 20.

FIG. 6 shows an example of routes set to explain display examples. This is route 01, which starts in Tokyo and ends in Shizuoka. FIG. 7 shows another example of routes set up to explain display examples. This is service route 02, which is said to be a circular line that starts at A and returns to A.

A display example of these routes 01 and 02 is shown in FIG. In this example, the stop name display 3 only provides information about the next stop name, but for example, when the door is opened/closed, it provides information such as "Thank you for boarding," and when the exit signal signals "Next stop," etc. may be displayed. On route 01, the destination display 2 continues to display the final destination "Shizuoka", but on route 02, the destination "D" is displayed between stops A to C.
between stops D and F, the destination is “G line”, and G
- H stops, the destination "A line" is displayed respectively. Conventional curtain-type destination indicators display the curtain position in the middle of the service on such circular routes, that is, just before the main stations D, G, and A, with the destination being the next major stop, G, A, or D. The driver set the subtitled destination display each time so that the destination would be clear. However, with this invention, the switching of the display is linked to the switching of the stop name display, which not only contributes to safe driving by eliminating the need for driver operations, but also allows the switching of the display to be done instantaneously, so it is possible to change the display while driving, unlike conventional methods. An unnatural situation where the curtain moves to the next destination name does not occur.

As shown in FIG. 9, the message storage unit 8 includes, for example, a character pattern memory (ROM1) 810,
This is a case where the display code memory (ROM2) 820 and the operation data memory (ROM3) 830 are configured.

The character pattern memory 810 stores display dot pattern data for each character, as shown in FIG. 10, and each character is assigned a character code. An example of storing dot pattern data is shown in the 13th example.
Details are shown in the figure.

The display code memory 820 stores, for example, a display code 0 for displaying "Tokyo" as shown in FIG.
The data is structured as character codes 10 and 04 corresponding to 00. This is an example of coded display of stop names, destination names, guidance, etc. to improve memory usage efficiency.

The contents to be displayed are stored in the operation data memory 830 as display codes in the order in which they are read out according to the operation order. For example, as shown in Fig. 12, in the case of a bus, when the operating route 01 is set, the station signal pulse will display codes 001, 101, 002, etc. according to the destination name and stop name shown in Fig. 6.
003, . . . 005 are read out sequentially. In other words, the data between data divisions D and D are read out sequentially according to the stop signal generated by the operation, and in this example, if it is 3 digits, it is determined to be a stop code, and the display code is displayed on the stop name display. 3
If it is 6 digits, the top 3 digits will be displayed as the stop name on the stop name display 3.
Further, the display specified by the lower three digits is displayed on the destination display 2, respectively. Alphabets other than numbers, such as A, D, and E, are symbols for special processing judgments.
The next 3 or 6 digits indicate the data of the display code, and since E is a circular route, it indicates that the next stop signal will return to the starting point of the route.

The data format for "East" is extracted from the character pattern memory 810 and shown in FIG. In this example, one code has a 16-bit configuration, and 16
A dot pattern is created using ×16 = 256 bits.
Furthermore, a pattern address based on a memory address is assigned to each character.

An example of the internal configuration of the stop name display 3 is shown in FIG. If the same type of display is used, the internal configuration of the destination display 2 can be the same as that of the stop name display 3. A memory write/read circuit 30 is connected to the input/output port 19 through terminals 301 and 302.
3 is connected, and the pattern data to be displayed is stored in the display pattern storage memory 304. Memory 30 by memory write/read circuit 303
4 is read out and a dot matrix type display tube 307 is driven via an X electrode drive circuit 305 and a Y electrode drive circuit 306.

<Operation> The general operation of the controller 1 shown in FIG. 5 will be described with reference to FIG. 15. The controller 1 starts operating automatically at the same time as the power is turned on.
The CPU 13 sequentially reads and decodes the control program memory 15. First, initial setting 1 is performed.
In other words, readable/writable memory (hereinafter referred to as RAM)
14 (initial value setting) and the registers of input/output ports 16, 17, 18, and 19 are cleared. RAM14 will be cleared, so
The contents of the stop signal counter address provided in the RAM 14 and storing the count value of the stop signal are set to an initial value of 0. Also, the entire surface of the dot displays 2 and 3 is cleared via the input/output ports 17 and 19. This complete clearing is performed by setting all “0” to the display pattern storage memory 304 in FIG.
This is done by writing .

In the next step 2 , a signal indicating the route number of the route to be operated is inputted via the terminal 400 and the input port 16, and the data is stored in the route address area of the RAM 14. Furthermore, a stop signal can be input from the terminal 401. In step 3 , in order to search for the service route data group corresponding to the route number input in step 2 , the starting address of the service data memory 830 (FIG. 12) of the specified route number is set in the internal register M of the CPU 13. The contents of this register M are input/output port 1
8 to the operation data memory 830 in the message storage section 8, and the data is read out. If the driver makes a mistake in specifying the route and sets a route number that is not stored in the operation data memory 830, a message such as "The switch number is incorrect" will be displayed on the display 3 in step 4 . It is also possible to instruct the driver about mistakes.

Next, in step 5 , the contents of the stop signal counter are checked. As a stop signal counter
One word of the stop counter address in RAM 14 is allocated. In other words, the contents of the stop signal counter match the contents stored in the RAM 14 as the stop counter address. When a stop signal is input, the contents of the stop counter address in the RAM 14 are incremented by 1 by interrupt processing. In step 5 , the contents of the stop counter are checked, and if the contents of the counter are 0, in step 6 , from the operation data memory 830 in FIG. 6
Read digit “001101”. These 6 digits are interpreted as the display code of the upper 3 digits and lower 3 digits, and the upper 3 digits are “001”.
is determined as the display code for displaying the stop name, and the lower three digits "101" are determined as the display code for displaying the destination name, and the process proceeds to the next step 8 .

If E is found in the data when read in step 6 , it is regarded as the end point of the circulation route, and the stop counter is returned to the initial value 0 in step 7 . Further, if the data in the delimiters D to D are 3 digits, it is determined that only the stop name is to be displayed, and the process proceeds to step 13 . At step 8 , the lower three digits of the display code (example 101) are stored in RAM for the time being.
It is stored in area 1 of 14. Then, the process of reading out the display code memory (ROM2) 820 begins.
Character code 08, 02, indicated by display code 101
14 is stored in area 2 of RAM 14 in step 9 . Step 10 starts reading the pattern memory (ROM1) 810 from character codes 08, 02, and 14 stored in area 2 of RAM 14, and sequentially stores pattern data of Shizu, Oka, and Row that match the character codes in area 3 of RAM 14. Store.

Next, in step 12 , display operation begins. Since the destination display 2 is displayed outside the vehicle, the number of displayed characters should be within the number of characters that can be displayed on the display in order to make it easy to see while driving.Although a fixed display is preferable, a display with flowing characters is also possible. The operation is the same as steps 18 and 19 showing the display operation of the stop name display 3, and the explanation will be omitted.

Steps 13 to 19 are the processing of the upper three digits of the display code, that is, the display work on the stop name display 3. The operation is the same as steps 8 to 12 . In the display code 011 according to the above example, ROM2
The character codes 06, 13, and 11 are read out, and the pattern data of Shin-Yokohama is read out from the ROM 1 based on the character codes 06, 13, and 11 (steps 13 to 16).

In order to display many messages to passengers on the stop name display 3, many characters are displayed in a continuous manner. In step 17 , the number of characters in the message to be displayed is calculated, and if it is greater than or equal to the display capacity of the stop name display 3, it is determined to be a continuous display operation, and if it is within the capacity, it is determined to be a fixed display operation. Transfer data to output port 19. Step 19 is a display operation. The operation of the stop name display 3 is described below. In FIG. 14, it operates in synchronization with the control signal from the terminal 301.
Furthermore, the display content and method are determined by the character pattern data sent through the terminal 302. The character pattern data transferred from the terminal 302 is written into the display pattern storage memory 304 via the memory write/read circuit 303. The storage capacity and bit configuration of the display pattern storage memory 304 correspond to the dot configuration of the dot type electronic display tube 307.
For example, as shown in FIG.
The number of bits corresponds to the number of Y times the number of X.

Further, the address information signal generated by the memory write/read circuit 303 is simultaneously supplied to the display pattern storage memory 304 and the X electrode drive circuit 305, and the display pattern data is supplied to the Y electrode drive circuit 306 and transmitted via the X electrode drive circuit 305. The display position, that is, the display X electrode is specified by the Y electrode drive circuit 306, and the display Y electrode is specified via the Y electrode drive circuit 306, so that the dot type display tube 307 is correctly driven. In the case of a flow display operation, the data can be displayed in a flowing manner by sequentially transferring character patterns that are changed at a constant cycle and at high speed, and in the case of a fixed display, the same pattern can be displayed. The data may be transferred repeatedly, or after one transfer, the data may be displayed using the data stored in the storage memory 304. In other words, in the case of flow display, the contents of the memory 304 are rewritten at high speed each time so that the display is shifted by one column of dot display.

In this way, for example, "Shin-Yokohama" is displayed. Thereafter, the process returns to step 5 to monitor the input of the stop signal, and if there is no input signal, the same display continues. In addition, in order to display "Next stop" etc. with the exit signal, the display code <Example 501> must be generated at the interrupt display input [INT...before step 13 ]. It can be seen that the stop name display 3 changes to "Next stop".

<Effects> As described above, according to the present invention, the destination name,
Each display data of the stop name is stored in a rewritable storage unit such as a semiconductor or magnetic material, and reading of the display data is done by electrical processing, so the display can be changed quickly and it is easy to change the operating route. This is economical because it can be handled by rewriting the storage section. By making the storage unit removable, bus operations that were previously managed on a group or business office basis can now be managed company-wide by replacing the storage unit and allowing buses to be used, reducing the number of spare vehicles. Can be done.

By linking the destination display 2 and the stop name display 3, the driver's labor is significantly reduced. The number of display patterns that can be accommodated can be significantly increased compared to the subtitle type.

[Brief explanation of drawings]

FIG. 1 is a block diagram showing a destination display device according to the present invention, FIG. 2 is an external perspective view of a destination display 2 and a stop name display 3, and FIG. 3A is a diagram showing a destination display 2 and a stop name display 3. A perspective view showing a combined example;
FIG. 3B is a diagram showing an example of how a destination display device is attached to a bus, FIG. 4 is a diagram showing an example of a display surface of a dot matrix display, and FIG. 5 is a block diagram showing an example of the configuration of the controller 1. , Figure 6 is a diagram showing an example of a bus route,
Fig. 7 is a diagram showing an example of a circulation route, Fig. 8 is a diagram showing an example of changes in display as the route is operated, Fig. 9 is a block diagram showing an example of the storage unit 8, and Fig. 10 is a pattern A first diagram showing an example of storage contents of the memory 810.
1 is a diagram showing a storage example of display code memory 820, FIG. 12 is a diagram showing a storage example of operation data memory 830, FIG. 13 is a diagram showing a storage example of pattern memory 810, and FIG. 14 is a diagram showing a storage example of stop name display. FIG. 15 is a block diagram showing an example of the configuration of the controller 3, and FIG. 15 is a flowchart showing an example of the operation of the controller 1. 1: Controller, 2: Destination display, 3: Stop name display, 8: Storage unit.

Claims (1)

[Claims] 1. A destination indicator that is attached to a vehicle and displays the destination of the vehicle to the outside of the vehicle in a dot matrix format, and a destination display that is attached to the interior of the vehicle and displays the name of the next stop to passengers inside the vehicle in a dot matrix format. A stop name display to provide guidance, a storage unit storing data necessary for displaying the destination display and the stop name display, and the storage unit stores character patterns shared by each display item as data. It is composed of a character pattern memory, a display code memory that stores character codes indicating the characters to be displayed for each display item, and an operation data memory that stores display items as codes in order according to the operation order. control to sequentially read out the data in the storage unit according to the data, change and display the destination name on the destination display at the starting point or transit point based on the data, and display the next stop name on the stop name display. a controller for calculating the number of characters in the stop name display data; and a controller for calculating the number of characters in the stop name display data; A destination display device comprising means for displaying a fixed display if the capacity is within the capacity.