JPH02201489A - Display device - Google Patents

Abstract

PURPOSE:To enable a passenger on a running train to visually recognize information through its window at real time by providing a car velocity detector which detects the velocity of the running train and a control means which controls a light source in such a way that an information displaying window is shifted to follow the train according to a calculated result from an arithmetic means. CONSTITUTION:The display device is provided with the car velocity detecter 5 which detects the velocity of the running train, an information setting means 6 which sets and inputs information to be displayed and the arithmetic means 7 which calculates the moving velocity of the information displaying window 2 based on car velocity data from the car velocity detecter 5. The subject device is also provided with the control means 8 which instructs the information displaying window 2 to display information from the information setting means 6 and controls the light source 4 in such a way that the information displaying window 2 is shifted to follow the train according to the calculated result from the arithmetic means. Therefore, light corresponding to information irradiates the rear side of a display panel through an optical fiber outgoing end part 3b and information on a normal image is displayed on its front side. Thereby, a passenger on a running train can visually recognize various types of information through its window at real time.

Description

[Detailed Description of the Invention] (Industrial Application Field) The present invention relates to a display device provided on the side wall of a railroad track, and more specifically, to a display device in which display information moves in accordance with the speed of a passing train. Regarding.

(Prior Art) Conventionally, railway track side walls, especially tunnel walls, have exposed concrete surfaces except for inside station premises.
The scenery seen from the train windows was completely barren and boring for the passengers.

In addition, information displays such as advertisements and station name displays on the side walls of station premises are permanently installed, so they are visible to passengers on the train until it stops, is passing, or is starting to run. was running and I couldn't see the information.

Therefore, in recent years, some railways have installed panels with backlights, whose shapes and images have changed little by little, like the original drawings of animation, on the inner walls of tunnels, and these panels can be seen from trains while they are running. When you look at it, an attempt is made to make it look like it's moving, similar to animation.

(Problem to be Solved by the Invention) However, in a display device in which a plurality of back-lit panels with shapes and images that change little by little are sequentially attached to the inner wall of a tunnel, it is difficult to pay close attention especially when inside a train moving at high speed. For passengers who have not done so, it is questionable whether it will appear to move in the same way as the animation, and the information displayed will also be fixed.

This invention was made based on the above-mentioned background, and its purpose is to provide a display device that allows passengers on a running train to view various information in real time from the train window. be.

(Means for Solving the Problems) As a result of various studies to solve the above problems, the present inventors have developed a display device that achieves the object of the present invention.

That is, the train following display device according to the present invention includes a display panel that is disposed on a side wall where a train passes and displays an information display window that moves to follow the train, a light source, and the back surface of the display panel that is the emitting end. a display device comprising: an optical fiber disposed at the light source and having an incident end connected to the light source; a vehicle speed detector for detecting the vehicle speed of a passing train; and a vehicle speed detector for setting and inputting information to be displayed; information setting means; calculation means for calculating the moving speed of the information display window from vehicle speed data from the vehicle speed detector; displaying information from the information setting means on the information display window and displaying the information display window according to the calculation result from the calculation means. and a control means for controlling the light source so as to move the light source to follow the train.

(Function) The train following display device according to the present invention having the above configuration functions as follows.

As shown in FIG. 1, which schematically shows an example of the configuration of the display device of the present invention, a vehicle speed detector 5 installed near the display panel 1 detects the speed of a train passing beside the display panel 1. From the obtained vehicle speed data, information display window 2 (
The calculating means 7 calculates the speed at which the parts (where images, characters, symbols, etc. are displayed) move on the display panel 1 in the train traveling direction.

At that time, the information display window 2 displays the train at the same speed so that passengers on the train see it from the train window as if it were stationary, or the information display window 2 shows the train moving at the same speed so that the passengers on the train see it from the train window as if it were stationary, or the information display window 2 shows the train moving at the same speed so that the passengers on the train can see it from the train window and see the train moving at the same speed as if it were stationary. Calculate to move a little faster or a little slower than the speed.

The information displayed on the information display window 2 is input from the information setting means 6 continuously or discontinuously, automatically or manually. Information signals such as images, characters, symbols, etc. that have been set and input are sent from the information setting means 6 to the control means 8, and a signal representing the calculation result of the moving speed is sent from the calculation means 7 to the control means 8. Based on the sent information signal (data) and the calculation result signal (data), the control means 8 controls the light source such as ON-OFF, color modulation, increase/decrease in light amount, etc. according to the moving speed of the information display window 2 calculated from the calculation means 7. 4 control is performed.

Light from a controlled light source 4 corresponding to information enters the input end 3a of the optical fiber 3 and is transmitted within the fiber 3. Light corresponding to information is irradiated onto the back surface of the display panel from the optical fiber output end 3b provided on the back surface of the display panel l, and a normal image of information (images, symbols, characters, etc.) is emitted from the front of the display panel. Is displayed.

(Example) The train following display device of the present invention will be explained in detail with reference to an example detailed below, but the scope of the invention is limited to this example unless it goes against the gist of the invention. isn't it.

FIG. 2 shows a schematic diagram of a mode in which a train following display device according to an embodiment of the present invention is installed on a side wall of a tunnel or the like.

In this aspect, the long display panel 1 according to the display device of the present invention is arranged on the side wall surface 1o of the tunnel 9. The dimensions and arrangement of the 0 display panel are determined by the dimensions of the vehicle, the position of the installation location,
Select as appropriate depending on the type of display panel. for example,
In a typical subway car, it is desirable that the height of the display panel match the height of the train window. Strictly speaking, the length of the display panel is determined by the speed of a passing vehicle and the time for displaying information, but it is preferably determined by taking various conditions into consideration.

If the length of the display panel to be installed is long, consider the manufacturing limits of the display panel, the ease of installation work, the curve of the track, etc., and install multiple units in series by dividing the display panel into appropriate lengths. You can also do it. For example, if the required length of the display panel is about loom, 25 units of 4 m each can be arranged in parallel. When arranging them in parallel, it is necessary to pay attention to the equivalent width of the display window frame.

The structure of the display panel can be selected as appropriate depending on the application, but it usually consists of a display section 11 and a protective glass 12 provided on the surface side of the display section 11, as shown in FIG. It can be done.

The optical fiber 3 in the device example of the present invention is disposed on the back surface of the display section 11 of the display panel at the output end side, and is connected to the light source 4 at the input end side. The present invention is not limited to the illustrated example, and the properties, dimensions, number, etc. of the optical fibers may be appropriately selected depending on the size of the display panel, the required information display performance, the dimensions and shape of the device, etc. Can be done.

In this exemplary display device, a light emitting diode (LED) array 4 is used as a light source. It is desirable to select the type and color of the LED as appropriate depending on the type of information to be displayed, that is, the display purpose.For example, when displaying information such as station information, traffic information, advertising, news, etc. Since character information is displayed on the screen, the restrictions on LEDs are lenient (2-color LEDs with three colors of red, green, and orange, or any of these are sufficient; for detailed color image display, full-color display is required. It is desirable that the

Not limited to the above-mentioned light source mode, the light source in this invention uses the lighting inside the car leaking from the car window (in-car light source), directs the input end of the optical fiber toward the car window, controls the incident light, and displays information. It can also be displayed in a window.

The vehicle speed detector 5 of this embodiment according to the present invention is a device for detecting the speed of a train passing beside the display panel 1, and sends a measured vehicle speed data signal to the calculation means 7.

The vehicle speed detection device of the present invention may be of any type as long as it fulfills the above function. Such types include transmission type and reflection type. Reflective types include ultrasonic Doppler speed detectors that apply the Doppler phenomenon as exemplified in this example, and transmission types include photoelectric type speed detectors that detect speed from the time the train blocks the light beam that crosses above the tracks. There are speed detectors, etc.

The type of detector can be selected as appropriate depending on various conditions. For example, if there is a lot of noise up to the ultrasonic range in the tunnel, it is better to use a photoelectric speed detector than an ultrasonic Doppler type. .

In the example of the speed detector described above, the speed detector is placed on the track side, but it may also be a mode in which the speed data is sent from the train side, which constantly measures the speed, to the vehicle speed detector using a transmitter or the like. .

When arranging the vehicle speed detectors, the distance between the detectors should be as narrow as possible (the shorter the better, but it is preferable to do so in consideration of economical arrangement so that the speed of the train can be measured as accurately as possible).

The calculation means 7 in this embodiment calculates the following movement speed of the information display window 2. The following movement speed is calculated by taking into consideration how the vehicle will appear to passengers. For example, in order to make the train appear stationary from the perspective of passengers, calculations are made so that the following movement speed of the information display window accurately synchronizes with the speed of the passing train.

Also, when text information gradually moves within the display window from the passenger's perspective, such as on electronic bulletin board news, calculations are made so that the following movement speed of the information display window is slightly slower or slightly faster than the speed of the passing train. do.

It is preferable to set in advance, depending on the type of information, whether to use a stationary mode or a mode like an electronic news bulletin board.

The control means 8 in this embodiment utilizes a microcomputer and mainly consists of a memory, a CPU, and an interface, and uses information data from the information setting means and data from the calculation means to display information on the information display window. A control signal for displaying information and a control signal for translating the information display window are sent to the light source.

The control means 8 in this embodiment includes the calculation means 7 and the light source 4.
It is also housed in the control unit 13, and can be mainly composed of a memory, a CPU, and an interface by applying a micro combinator.

In this example, the image displayed in information display window 2,
Information such as characters and symbols is input from the information setting means 6 continuously or discontinuously, automatically or manually.

(Effects of the Invention) This invention having the above configuration provides the following effects.

(1) The train following display device of the present invention allows passengers on a running train to visually view various information from the train window in real time.

(2) The display device of this invention can be used not only for advertisements and advertisements mainly consisting of characters and symbols, but also to display clearer images, so it can be used to appreciate landscapes and paintings in undersea tunnels and deep underground subways. This can be provided to passengers of 300 to 400 ft, relieving passengers of their concerns about being underground.

[Brief explanation of the drawing]

FIG. 1 is a schematic diagram showing the configuration of a train following display device according to the present invention, FIG. 2 is a schematic diagram showing an embodiment of the display device according to the present invention installed in a train tunnel, and FIG. FIG. 1 is an explanatory diagram schematically showing an apparatus according to an embodiment. 1... Display panel, 2... Information display window, 3
... Optical fiber, 4... Light source, 5... Vehicle speed detector, 6... Information setting means, 7... Calculating means, 8...
Control means, 9... Tunnel, 10... Side wall surface, 11
...display section, 12...protective glass, 13...control unit FUJΣ Patent applicant Mitsubishi Rayon Co., Ltd.

Claims (1)

[Claims] 1. A display panel disposed on a side wall through which a train passes and displays an information display window that moves to follow the train, a light source, an output end disposed on the back side of the display panel, and an input end A display device comprising an optical fiber connected to the light source, a vehicle speed detector for detecting the vehicle speed of a passing train, and an information setting means for setting and inputting information to be displayed.
a calculation means for calculating the moving speed of the information display window from the vehicle speed data from the vehicle speed detector; and a calculation means for displaying information from the information setting means on the information display window, and for changing the movement of the window to the train according to the calculation result from the calculation means. 1. A train following display device comprising: a control means for controlling a light source so as to move following a train.