JPH0775203A - Ats display - Google Patents

Abstract

PURPOSE:To display a limit speed even when a display element becomes out of order, and to display the limit speed being subjected to change in an easily readable way. CONSTITUTION:The ATS display has a limit speed signal inputting means 11 to which a limit speed signal is inputted, a display drive part 12 which outputs a display signal corresponding to the limit speed signal inputted, and a display means 13 13 which receives the display signal from the display drive part 12 and makes a display corresponding to the input limit speed signal. The display means 13 has at least two display element rows (LED) 14 and 15 of different emitting colors. They are usually displayed by a mixed color of two colors. If one display element row becomes out of order, display is made by only the display element row of the other color. As a result, it becomes possible to tell which one is out of order, and display is made by the other. Incidentally, it does not matter if the display means 13 is composed of at least two 7-segment display elements.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an ATS indicator which is an on-board facility in an automatic train stop device (ATS) for safe train operation.

[0002]

2. Description of the Related Art FIG. 6 shows the structure of a conventional ATS display. In FIG. 6, reference numeral 1 denotes a speed display unit, which has a display element array 2 including display elements (LEDs) corresponding to each speed limit signal. Reference numeral 3 is a dimming control unit, 4 is a brightness setting unit, and 5 is a brightness sensing unit. Speed display section 1
Displays each LED of the display element array 2 in correspondence with the input speed limit signal and displays which speed limit signal is input. The dimming control unit 3 sets the brightness by the brightness setting unit 4 according to the surrounding brightness detected by the brightness detecting unit 5, and outputs the brightness to the speed display unit 1 so that the speed display is easy to see.

[0003]

However, in the above-mentioned conventional ATS display, when the LED of the display element array fails, the speed limit cannot be displayed, and when the failure occurs or when the LED is simply turned off. It was difficult to distinguish. Further, when the brightness is adjusted, only the speed display unit is dimmed, which may not be in harmony with the brightness of other peripheral devices. Further, the speed limit that can be displayed is fixed, and it is difficult to change the speed limit or to display the speed (pattern speed) represented by characters other than numerical values. Furthermore, since there is only one display color, it is difficult to distinguish between speed limits that require attention and speed limits that do not.

The present invention solves such a conventional problem, and provides an ATS display device capable of displaying the speed limit even when the display element fails, and displaying the constantly changing speed limit in an easy-to-see manner. The purpose is to do.

[0005]

In order to achieve the above object, the present invention provides a speed limit signal input means for inputting a speed limit signal and a display for outputting a display signal corresponding to the input speed limit signal. A drive unit and a display unit having at least two display element rows of different emission colors for receiving a display signal from the display drive unit and performing display corresponding to the input speed limit signal are provided.

The present invention also includes display color selection means for setting the color of light emitted by the display means to a mixed color or a single color in accordance with the input speed limit signal.

The present invention also provides a speed limit signal input means for inputting a speed limit signal, a display drive section for outputting a display signal corresponding to the input speed limit signal, and a display signal from the display drive section. And display means having at least two 7-segment display elements for performing display corresponding to the input speed limit signal.

The present invention also includes a dimming control unit for adjusting the brightness of the display means in accordance with the brightness of the surroundings. The dimming controller can include a dimming signal output terminal for an external device.

[0009]

Therefore, according to the present invention, by configuring the display means with at least two display element rows having different emission colors, when a display normally displayed in mixed colors fails in one display element row. Is displayed in a single color, it is possible to know that one of the display elements has failed and the other display element can display the speed limit.

According to the present invention, the emission color of the display means is set to a mixed color or a single color according to the input speed limit signal, so that the speed limit that requires special attention is displayed separately from other speed limits. can do.

According to the invention, the display means is composed of at least two 7-segment display elements,
The speed limit can be displayed numerically and the high speed pattern, the low speed pattern, etc. can be displayed in alphabets, so that the speed limit can be flexibly changed or increased.

Further, according to the present invention, the constantly changing speed limit can be displayed in an easy-to-see manner by adjusting the brightness of the display means according to the brightness of the surroundings. Also, by outputting the same dimming signal to external equipment,
It is possible to display in harmony with external equipment.

[0013]

(Embodiment 1) FIG. 1 shows the configuration of a first embodiment of the present invention. In FIG. 1, reference numeral 11 is a speed limit signal input means for inputting a speed limit signal. Reference numeral 12 is a display drive unit that outputs a display signal corresponding to the speed limit signal input to the speed limit signal input means 11. Reference numeral 13 is a display means for receiving a display signal from the display drive section 12 and performing a display corresponding to the input speed limit signal. The first display element row 15 is a display element (LED) that emits red light.
And a second display element row 15 including a display element (LED) that emits green light. These may be other colors.

In FIG. 1, speed limit signal input means 11
Outputs a display signal corresponding to the input speed limit signal to the display drive unit 12. The display drive unit 12 divides the input display signal into a first display signal and a second display signal, and the first display element array 14 and the second display element array 1 of the display unit 13 are separated.
After adjusting the inherent luminance difference of 5, the display element corresponding to the input speed limit signal is turned on. Therefore, the displayed color is a mixed color consisting of red and green, and if one of the display elements does not light due to a failure of the display element row or the display element, the other one color emits light. Since it is found that the row or the display element has failed and the speed limit is displayed in the other color, the current speed limit can be grasped.

(Embodiment 2) FIG. 2 shows the configuration of a second embodiment of the present invention. In FIG. 2, 11 is a speed limit signal input means, 12 is a display drive section, 13 is a display means,
14 is a first display element row, 15 is a second display element row,
These are the same as those in the first embodiment. Reference numeral 16 is a dimming control unit, 17 is a brightness setting unit, 18 is a brightness sensing unit, and 19 is an external dimming signal output terminal.

In FIG. 2, speed limit signal input means 11
Outputs a display signal corresponding to the input speed limit signal to the display drive unit 12. The display drive unit 12 divides the input display signal into a first display signal and a second display signal, and the first display element array 14 and the second display element array 1 of the display unit 13 are separated.
The brightness difference peculiar to 5 is corrected and adjusted by the dimming signal from the dimming control unit 16, and then the display element corresponding to the input speed limit signal is turned on. The dimming control unit 16 detects the brightness of the surroundings by the brightness sensing unit 18, determines the brightness setting range based on the brightness and sets the brightness by the brightness setting unit 17 within the range, and adjusts the brightness. The signal is output to the display drive unit 12 and the external dimming signal output terminal 19.

Therefore, according to the present embodiment, in addition to the effect of the first embodiment, an easy-to-see display can be performed according to the brightness of the surroundings, and the same can be applied to an external device through the external dimming signal output terminal 19. By adjusting the dimming
A harmonious and easy-to-see display can be provided.

(Embodiment 3) FIG. 3 shows the construction of the third embodiment of the present invention. In addition to the construction of the second embodiment,
The display color selection means 20 for setting the emission color of the display means 13 to a mixed color or a single color according to the input speed limit signal is provided.

In this embodiment, the display color selection means 20
According to the first display element row 14 or the second display element row 14 of the display means 13.
The setting is made to stop the output of the display element corresponding to the specific speed limit signal in the display element array 15. For example, the speed limit signal 15k that requires the slowest speed operation
The output to the display element of the second display element column 15 corresponding to m / h is set to be turned off. Accordingly, when the speed limit signal of 15 km / h is input, only the red color of the first display element array 14 is turned on, so that it is possible to clearly distinguish the display of the other mixed color of red and green. , It is possible to call the driver special attention.

In this embodiment, the display color selecting means 20 can be omitted by making the color of the display element corresponding to the specific speed limit signal different from the other colors from the beginning. For example, in the above example, the second display element array 15
By setting the color of the display element corresponding to the speed limit signal of 15 km / h in 1 to red from the beginning, the same effect can be obtained. However, the display color selection means 2
By providing 0, there is an advantage that it is possible to arbitrarily change the setting as to what color the display color is for which speed limit signal, or whether it is a single color or a mixed color.

Further, in the present invention, the display means 13 is composed of three display element rows each having a different luminescent color, and the display color selecting means 20 arbitrarily selects them, thereby displaying various colors. Can be done.

(Embodiment 4) FIG. 4 shows the construction of a fourth embodiment of the present invention. Reference numeral 21 is a speed limit signal input means for inputting a speed limit signal. Reference numeral 22 denotes a display drive unit that outputs a display signal corresponding to the speed limit signal input to the speed limit signal input means 21. 23 is the display drive unit 2
The display means includes two 7-segment display elements (LEDs) that receive a display signal from the unit 2 and perform a display corresponding to the input speed limit signal. There may be two or more 7-segment display elements.

In FIG. 4, speed limit signal input means 21
Outputs a display signal corresponding to the input speed limit signal to the display drive unit 22. The display drive unit 22 drives the two 7-segment display elements in the display unit 23 based on the input display signal to display a numerical value or alphabet corresponding to the input speed limit signal.

In this embodiment, since two 7-segment display elements are used as the display means, the input speed limit signal can be displayed as a numerical value as it is, not just as a lighting display, but also as a high speed pattern or a low speed pattern. Can be distinguished and displayed in alphabetical letters, and it is possible to flexibly deal with changes and increases in the speed limit signal.

(Embodiment 5) FIG. 5 shows the construction of a fifth embodiment of the present invention. In the fourth embodiment, a dimming control section 24, a brightness setting means 25 and a brightness detecting means 26 are provided. The dimming control section 24 is provided with an external dimming signal output terminal 27.

In this embodiment, in addition to the effect of the above-mentioned fourth embodiment, as described in the second embodiment, it is possible to perform an easy-to-see display according to the brightness of the surroundings and to output the external dimming signal output terminal. By performing the same light control on an external device through 27, a harmonious and easy-to-see display can be performed.

[0027]

As described above, according to the present invention,
By configuring the display means with at least two display element rows having different emission colors, a display normally displayed in a mixed color is displayed in a single color when one display element row fails. It can be seen that the display element has failed, and the other display element can display the speed limit.

According to the present invention, the emission color in the display means is set to a mixed color or a single color according to the input speed limit signal, so that the speed limit which requires special attention is displayed separately from other speed limits. can do.

According to the invention, the display means is composed of at least two 7-segment display elements,
The speed limit can be displayed numerically and the high speed pattern, the low speed pattern, etc. can be displayed in alphabets, so that the speed limit can be flexibly changed or increased.

Further, according to the present invention, the constantly changing speed limit can be displayed in an easy-to-see manner by adjusting the brightness of the display means according to the brightness of the surroundings. Also, by outputting the same dimming signal to external equipment,
It is possible to display in harmony with external equipment.

[Brief description of drawings]

FIG. 1 is a block diagram showing a configuration of an ATS display device according to a first embodiment of the present invention.

FIG. 2 is a block diagram showing a configuration of an ATS display device according to a second embodiment of the present invention.

FIG. 3 is a block diagram showing a configuration of an ATS display device according to a third embodiment of the present invention.

FIG. 4 is a block diagram showing a configuration of an ATS display device according to a fourth embodiment of the present invention.

FIG. 5 is a block diagram showing a configuration of an ATS display device according to a fifth embodiment of the present invention.

FIG. 6 is a block diagram showing a configuration of an ATS display device in a conventional example.

[Explanation of symbols]

 11 speed limit signal input means 12 display drive section 13 display means 14 first display element row 15 second display element row 16 dimming control section 17 brightness setting means 18 intensity detection means 19 external dimming signal output terminal 20 display color selection Means 21 Speed limit signal input means 22 Display drive section 23 Display means 24 Dimming control section 25 Luminance setting means 26 Brightness sensing means 27 External dimming signal output terminal

 ─────────────────────────────────────────────────── ─── Continuation of the front page (72) Inventor Hiroo Matsui 4-3-1 Tsunashima-higashi, Kohoku-ku, Yokohama-shi, Kanagawa Matsushita Communication Industrial Co., Ltd.

Claims (5)

[Claims] 1. A speed limit signal input means for inputting a speed limit signal, a display drive section for outputting a display signal corresponding to the speed limit signal input to the speed limit signal input means, and the display drive section And a display means having at least two display element rows of different emission colors for performing display corresponding to the input speed limit signal in response to the display signal of
display. 2. The ATS display device according to claim 1, further comprising display color selection means for setting the emission color of the display means to a mixed color or a single color according to the input speed limit signal. 3. A speed limit signal input means for inputting a speed limit signal, a display drive section for outputting a display signal corresponding to the speed limit signal input to the speed limit signal input means, and the display drive section And a display means having at least two 7-segment display elements for performing display corresponding to the input speed limit signal in response to the display signal. 4. A dimming controller for adjusting the brightness of the display means according to the brightness of the surroundings.
The ATS indicator according to any one of 1. 5. The ATS display device according to claim 4, wherein the dimming control unit includes a dimming signal output terminal for an external device.