JPS6294894A - Train side display unit - Google Patents

Abstract

(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

DETAILED DESCRIPTION OF THE INVENTION [Technical Field of the Invention] The present invention relates to a train side indicator installed on the side of a train vehicle.

[Technical background of the invention and its problems]

BACKGROUND ART In recent years, an increasing number of train cars are equipped with a display on the side of the train to guide passengers on the station platform about the destination of the train.

Conventionally, subtitles were the mainstream display system, but this system required a mechanical mechanism to control subtitles, which caused frequent breakdowns and deterioration of the subtitles, requiring maintenance. I used to be. In recent years, semiconductor technology has progressed, and LE has been added to the display section.
The adoption of devices using light emitting elements such as D (light emitting diodes) is progressing.

However, although displays using light emitting elements such as LEDs have many advantages such as operational reliability and variety of display contents,
The power consumption is large, and when the display is turned on continuously, the temperature inside the display rises due to the heat generated.

For this reason, it is necessary to perform forced cooling using an electric fan or the like, and there is a problem in that it is difficult to realize a display with a sealed structure, which is required in the case of a waterproof structure.

[Purpose of the invention]

The present invention is based on the above points Ktl! To provide a train side display which is regarded as an i-designed device and suppresses the rise in temperature inside the train side display installed on the side of a train, and also achieves power consumption saving.

[Summary of the invention]

In order to achieve the above-mentioned object, the present invention includes a plurality of side indicators that are attached to each vehicle or a specific vehicle and that include a power source, a display section, and a control section that turns on/off the power source and controls display contents; an indicator power setting device that sets the power on/off state of the side display device and outputs a setting signal using a manual setting switch and a speed detection switch that operates by detecting the speed of the train; and a display of the side display device. A display content setting device that sets the content and outputs the setting signal, and receives outputs from the display power setting device and the display content setting device, and centrally controls the power input and display content of the plurality of side displays. When traveling between stations where no display is required, the vehicle turns off the power to each side display in response to the speed detection switch.

[Embodiments of the invention]

Hereinafter, the present invention will be described in detail with reference to the drawings.

FIG. 1 is a block diagram of a train side display device according to one embodiment of the present invention.

1 is to turn on and off the power of multiple side indicators installed on the train,
A central control device that centrally controls display content. Reference numeral 2 denotes a display power setting device for setting the power on/off of the side display, which is composed of a manual setting switch 2a and a speed detection switch 2bK. 3 is a display content setting device for setting the display content of the side display device.

Reference numeral 4 denotes a side display, which includes a control section 4a, a power source 4b, and a display section 4C using light emitting elements such as LEDs. Reference numeral 5 denotes an information transmission line that connects the central control device 1 and each side display 4 and transmits a power supply control signal and a display control signal.

The power on/off control of each side display 4 is performed by the central control device 1 sending a power control signal to the display control section 4a through the information transmission path 5 based on the power setting signal from the display device'it source setting device. This is performed by the control unit 4a of the side display 4 controlling the display power supply 4b according to the power setting signal.

Here, the power setting signal from the display power setting device 2 is generated by the manual setting switch 2a and the speed detection switch 2b as follows. The manual switch 2a is opened and closed at will by the train crew, and is normally closed when the train is in operation. The speed detection switch 2b is a switch that receives a speed signal from a speed generator or the like, and opens when the speed of the train exceeds a certain level, and closes when the speed falls below a certain level.

If the condition of the logical sum of these two switches is used as a power setting signal, the power will be turned off when the train reaches a certain speed or higher, and the power will be turned on when the train reaches a certain speed or less. Therefore, if a constant speed is set as the speed at which the train approaches the station platform, the power will be turned on to the display only at the station platform. Also, when the vehicle is stopped at a place other than the platform, it checks the door open signal and if there is no open signal for a certain period of time, the display power is turned off.

The display contents of each side display 4 are determined by the crew operating the display content setting device 3, and based on the information, the central control device 1 sends a display setting signal to the control unit 4a of the side display 4 through the information transmission path 5. The control section 4a of the side display 4 controls the display section 4C of the side display 4 according to the display setting signal.

As described above, according to this embodiment, the power to the side display of the train is cut off when the train is traveling between stations where the display is not required, and the power to the side display is turned on and displayed when the train approaches the station platform. This makes it possible to prevent the temperature inside the side display from increasing without degrading service to passengers, thereby preventing deterioration of the display component parts and increasing the effect of power saving. be able to.

FIG. 2 is a block diagram of another embodiment of the invention. In particular, it is characterized in that the power supplies for the plurality of side displays 4 are centralized as the display power supply 6.

The display power source 6 is directly controlled by the display power setting device 2 and supplies power to the display device through the display power supply line 7.

The display contents are controlled through the central control device 1 based on the information from the display contents setting device 3, and the central control device 1 receives power status information from the display device power setting device 2, and power is supplied to the display device. The display control signal is sent only when

By adopting such a configuration, there is no need to incorporate a power supply into each side display, and there are effects such as miniaturization of the display and prevention of temperature rise inside the display due to heat generated from the power supply.

〔Effect of the invention〕

As described above, according to the present invention, the display on the train side display is unnecessary. Turn off the power to the display when running for one riff,
It is now possible to control the display by turning on the power to the display when entering the platform of the stop station, preventing the temperature inside the display from rising and deteriorating the display components without reducing service to passengers, and saving money. It is possible to improve the effect of power consumption.

[Brief explanation of drawings]

1 and 2 are block diagrams of one embodiment and another embodiment of the present invention. 1. Centralized control device 2. Display power setting device 2a
・Manual setting switch 2・・Speed detection switch 3・
・Display content setting device 4...Side display 4a...Control section 4b...Power source 4C/Display section
5... Information transmission line 6... Display unit power supply 7...
Display unit power supply line agent Patent attorney Nori Ken Chika Yudo 3 Hiroshi Sozo Text box 1 Figure 2

Claims (1)

[Claims] A plurality of side displays are attached to each vehicle or a specific vehicle, and consist of a power source, a display section, and a control section that turns the power on and off and controls the display contents, a manual setting switch, and operates by detecting the speed of the train. a speed detection switch that sets the power on/off state of the side display and outputs this setting signal; and a display content setting device that sets the display content of the side display and outputs this setting signal. The present invention is characterized by comprising a setting device and a central control device that receives outputs from the display device power setting device and the display content setting device and centrally controls power input and display contents of the plurality of side display devices. A train side indicator.