JPH0132515B2 - - Google Patents

Description

[Detailed Description of the Invention] [Technical Field of the Invention] The present invention relates to a system for controlling a destination display device for a railway vehicle, which consists of a large number of indicators installed on the front, rear, or side surfaces of a vehicle. More specifically, the present invention relates to a control method for a destination display device in a train that is composed of one or more vehicles and has a command device in the lead car to form one unit, and a plurality of these units are combined to form one train.

[Prior art]

Generally, in a long formation made up of multiple units, each unit being a formation vehicle with a respective command device in both leading cars, when the destination is different due to cutting off halfway, etc., the display contents of the front and rear units may be made to be different. In this case, the conventional methods of controlling the display device include providing a pull-out line switch to independently display commands for each unit, or assigning conditions such as numbers to the units in advance. However, a method has been adopted in which a circuit of a display device is realized by issuing a corresponding command.

However, with such means, commands must be given for each unit, changes cannot be made from any position, and when the formation is rearranged, settings must be made again, making it difficult to operate. It was complicated and complicated.

On the other hand, especially in recent years, as the amount of transportation has increased, the number of vehicles in one train has also increased, and the number of vehicles in a train set has been increasingly released for efficient use.

[Summary of the invention]

In view of the above points, the present invention has been made to solve such problems and eliminate such drawbacks.The present invention has the purpose of being able to select the first command device of the display position switching unit, and also to It is an object of the present invention to provide a control method for a destination display device, which allows a unit to automatically change display contents and give commands, which greatly simplifies operation, and which allows the number of vehicles in a train to be easily increased. .

In order to achieve such an object, the present invention consists of a command device that commands signal transmission using a digital serial signal, and a display device that operates in response to the command signal from the command device. Alternatively, a large number of indicators installed on the side of the car can be replaced with two lead-through lines: a power supply lead-in line and a command signal lead-in line. This allows them to be remotely controlled all at once.

[Embodiments of the invention]

Hereinafter, embodiments of the present invention will be described in detail based on the drawings.

First, before describing the embodiments, in order to facilitate understanding of the present invention, the setting relationship between a command device and a display device used in the present invention will be explained with reference to FIG.

In Fig. 1, IST is a command device, and this command device IST is installed in both leading cars of each unit UT ₁ , UT ₂ ...UT ₄ , and is configured to select one of multiple display positions and issue a command. has been done. DPa and DPb are indicators that display by moving a display curtain based on commands from the controller IST. And ORG indicates one organization.

FIG. 2 is a block diagram showing the connection relationship between the command device and the display device, and shows the arrangement of four units, with the intermediate display device not necessary for explanation omitted.

In this figure 2, UT ₁ indicates the first unit, UT ₂ indicates the second unit,...
UT ₄ indicates the fourth unit.

IST ₁ , IST ₂ ...IST ₈ are each unit
UT ₁ , UT ₂ ...UT ₄ command unit, DP ₁ , 7P ₂ ...
DP ₈ is a display for each unit UT ₁ , UT ₂ . . . UT ₈ , respectively. Further, U is an AC power supply line that supplies the required power to the command unit IST and display unit DP, V is the return line of the power supply, Uo is the command power supply line inside the unit, and S is the line for the command power supply inside the unit. The command lead-in line, Vo, is each of these lead-in lines Uo,
S return line, Uo' is the command power supply lead-in line outside the unit, S' is the command power lead-in line also outside the unit,
Vo′ is the return line of each of these lead-through lines Uo′ and S′.
Note that rl is a normally open contact point of a relay RL, which will be described later, which closes the command feed-through line in response to a closing command signal from the command devices IST ₁ to _{IST 8} that issue the command.

ANS is answer back data which is a response signal to notify that the operation has been completed, and this answer back data ANS is configured to be sent to the internal/external command lead-in lines S, S'.

FIG. 3 is a block diagram of a command unit for explaining one embodiment of the control system for the destination display device according to the present invention, and only the parts necessary for the explanation are shown.

In Fig. 3, the same reference numerals as in Fig. 2 indicate corresponding parts, and a command device is installed in the lead car for each unit, but in the embodiment shown in Fig. 3, only one command device is installed. are extracted and shown.

DS ₁ is a digital switch (destination setting switch) that specifies the destination of the vehicle, DS ₂ is a digital switch (number of units setting switch) that sets the number of units up to the unit that changes the display,
The CPU is an 8-bit single-chip microcomputer (processor) that inputs and outputs various information and performs arithmetic processing. Then, press the destination setting switch above.
DS ₁ is configured to output to input support Po of the processor CPU, and unit number setting switch DS ₂ is configured to output to input port P ₁ of the processor CPU. PW inputs the AC power supply line U and its return line V, and uses the signal from the output port _P8 of the processor CPU to send a digital serial signal synchronized to the AC power supply to the command lead-in line S in the unit and the normally open line. By closing the contact rl, the signal is sent to the command lead-in line S' outside the unit. IF ₁ is an internal command data input section (interface) that receives signals from the command feed-through line S within the unit.
It is configured to output data to input port _P4 of the CPU, and IF ₂ is connected to the command line outside the unit.
This is an external command data input section (interface) that receives the signal from S'.
It is configured to output data to the CPU's input support _P5 .

RL is a relay that is controlled by the drive signal from output port _P2 of the processor CPU.
It is constructed so that the command lead-through lines S and S' inside and outside the unit are closed via the normally open contact rl. Each return line V, Vo, Vo' is grounded.

Next, the operation of the embodiment shown in FIG. 3 will be explained with reference to FIG. 2.

First, in the embodiment shown in Fig. 3, the command has been completed, and no command signal is output to the command lead-in line S inside the unit, and the command signal is not output between the command lead-in line S and S' inside and outside the unit. indicates a state in which the normally open contact rl of relay RL is opened.

In this state, each command unit shown in Figure 2
IST ₁ to IST ₈ constantly check whether or not there is command data on the command lead-through line S inside the unit and the command lead-through line S' outside the unit.

Next, in this state, the first unit UT ₁ and the second unit are controlled by the command device IST ₁ shown in FIG.
The operation when issuing a display command to switch display contents between UT ₂ will be explained using an example.

At this time, if the destination setting switch DS ₁ shown in FIG. 3 of the command device IST ₁ shown in FIG. The processor CPU has previously combined this data with the display position of the first unit UT ₁ (see Figure 2) corresponding to #10.
Determine and memorize #11. Further, #1 is set in the unit number setting unit _DS2 , and the processor CPU stores a count value #2 which is obtained by doubling this value, that is, the number of display switching and command devices up to the unit.

The processor CPU of the command unit IST ₁ (see Figure 2) starts issuing commands from the input data from the destination setting switch DS ₁ and the number of units setting switch DS ₂ , but first, only the command unit can be accepted. The model data A, which is a device-specific allocation signal, is output from the output port _P3 to the command drive unit PW. This command drive unit PW converts the model data A into a digital serial signal synchronized with the AC power supply input using the AC power supply line U and its return line V, and sends it to the command lead-in line S in the unit. .

Following this operation, the processor CPU connects the normally open contact RL.
In order to close the command lead-in line S-S' which has been opened _by The drive unit PW sends the signal to the command lead-in line S within the unit. The command data sent to this command lead-in line S is sent to the command unit IST ₂ (see Figure 2).
Since it is opened by the normally open contact rl of relay RL, only its command device IST ₂ is recognized. Then, the processor CPU of the command unit IST ₂ operates the relay RL based on the command data by the control signal from the output port P ₂ , and closes its normally open contact rl to connect the command lead-in lines S and S inside and outside the unit. ′,
The command transmits answer back data ANS, which is a response signal to notify that the operation has been completed.
It is sent from IST ₂ to command feed-through lines S and S'. Then, the command device IST ₂ that sent out this answer back data ANS maintains this state until the display command is completed.

Meanwhile, the answer back data from the command unit IST ₂
The command unit IST ₁ that received the ANS has a memorized count value.
Change #2 to (1)1 to #1, and connect the normally open contact rl of the command device IST ₃ (see Figure 2) in the same way as above.
In order to close the unit, model data A and command data D are sent to a command lead-in line S in the unit via a command drive section PW. Here, the command unit IST ₈ closes the normally open contact rl and sends out the answer back data ANS. Then, the command unit receives the answer back data ANS from the command unit IST ₃ .
Since IST ₁ sets count value #1 to (1)1 and becomes “0,” it recognizes that the first command unit of the unit that is switching the display contents is connected, and switches on the command unit.
In order to have IST ₃ issue a display command on the display switching side, we need model data A that accepts only that command, as well as display position data #10 on the display position switching side.
is sent to the command lead-in line S within the unit. Here, the sent command data is configured so that it is accepted only by the command device that sent out the answer back data ANS immediately before. In other words, the command
IST ₃ stores the display position data #10 and sends out answer back data ANS.

Then, in order to issue display commands for units with command unit IST ₃ or later, the output port of the processor CPU is
Stops driving relay RL by _P2 , reopens its normally open contact rl, and sends display data #10 to the command lead-in line along with model data B, which is a model assignment signal that can also be accepted by the display. .

In this way, the display device that receives the command data (display position data) sent from the command device displays subtitles according to the display position data #10. In addition, the command devices from the second unit UT ₂ onwards, except for the command device IST ₃ , recognize that the command data being sent is data for their own display, and sequentially activate the relays RL to keep them normally open. The contact rl closes the connection between the inner and outer command lead-in lines S and S'.

Meanwhile, the answer back data from the command unit IST ₃
The command device IST ₁ which received the ANS also sends display position data #11 together with the model data B which the display also accepts in order to command the display of the first unit UT ₁ .
Upon receiving this, the display of the first unit UT ₁ drives the subtitles according to the display position data #11.

In this way, each command device keeps the command feed-through line between units normally open, and closes the command feed-through line sequentially in response to the closing command signal from the command device that issues the command, and also sends an answer signal, which is a response signal. It is configured to issue a command by sending a back signal, and the number of units up to the unit whose display contents are to be changed is set in advance in the command unit that issues this command, and the answer list sent sequentially is set in advance. If the number of signals matches the value of the set number of units, that is, the number of command devices up to the display switching unit, the command feed-through lines to the first command device of the display switching unit are closed and connected in sequence. After confirming that the display has been changed, a command signal is sent to the command device to cause the display switching unit to command the display. After receiving the display command signal, the dispatcher sends an answer back signal and then opens the command line between the units again, allowing each dispatcher to independently issue display commands before and after formation. The system is configured so that commands to change the display contents can be automatically given from any unit in the long formation.

As described above, a display command was issued to switch the display contents from the command unit IST ₁ .
Next, we will briefly explain that the same command can be issued from the command unit IST ₈ (see Figure 2) on the opposite side.

That is, in this case, the display position data #11 of the first unit UT 1 is set in the destination setting switch DS ₁ of the command device IST ₈ of the fourth unit UT ₄ shown in FIG. ₂ , and this display position data is set in the processor CPU. The data and the corresponding display position data #10 of the second unit UT ₂ and subsequent units are stored. Further, in the unit setting, the number of units #3 up to the unit whose display is to be switched is set, and a count value #6 which is twice this value is stored. Then, as described above, the count value of the command device IST ₈ becomes zero (0), and the first command device IST ₂ of the display switching unit
Until the command lead-in line is connected, the machine type data A and the command lead-in line closing command data D are sent out in sequence, and the count value is subtracted by (-) 1 by the answer back data ANS. When the count value reaches zero (0), the command device IST ₈ sends model data A and display position data #11 to the command device IST ₂ to instruct the first unit UT ₁ to display. The first unit UT ₁ is a command device IST ₂ , and the second unit UT ₂ to the fourth unit UT ₄ are a command device IST _{8 .}
each issues a display command.

In the above embodiment, the case where one unit has a command device in both leading cars has been explained as an example, but the present invention is not limited to this, and each unit has one command device. In the case of a stand, the display can be controlled in the same way. In this case, the value of the unit number setting switch _DS2 itself represents the number of command devices up to the display switching unit.

As is clear from the above description, according to the present invention, in each command device, the command feed-through line between units is always open, and the command feed-through line is sequentially closed by transmitting and receiving signals between the command devices. By doing this, you can select the first command device of the display position switching unit, and by entrusting that command device with display commands on the display switching side, you can automatically change the display content and give commands from any unit. This makes the previously complicated operations extremely simple, and the number of vehicles in the train can be easily increased, so the effects are extremely large.

Further, according to the present invention, without using complicated means, the command feed-through line between units is normally opened in each command device, and the command feed-through line is sequentially closed by transmitting and receiving signals between the command devices. This is extremely effective in that the intended purpose can be achieved with a simple circuit configuration.

[Brief explanation of drawings]

Fig. 1 is a block diagram showing the installation relationship between a command device and a display device used for explaining the present invention, Fig. 2 is a block diagram showing the connection relationship between the indicator device and display device used in the present invention, and Fig. 3 is a block diagram showing the connection relationship between the indicator device and display device used in the present invention. FIG. 2 is a block diagram of a command device for explaining an embodiment of a control method for a destination display device according to the present invention. IST, IST ₁ ~ IST ₈ ... Command unit, DP, DP ₁ ~
DP ₈ ...Display, DS ₁ ...Destination setting switch,
DS ₂ ...Unit number setting switch, CPU...Microcomputer (processor), PW...Command drive section, IF ₁ ...Internal command data input section (interface), IF ₂ ...External command data input section , RL...Relay, RL...Normally open contact of relay RL.

Claims (1)

[Claims] 1. In a train that is composed of one or more cars and has a command device in the lead car to form one unit, and a plurality of these units are combined to form one train,
Select and issue a command from multiple display positions, keep the command lead-in lines between the units normally open, and respond by sequentially closing the command lead-in lines in response to a closing command signal from the command device that issues the command. It includes a command device that issues a command by sending out an answer back signal, which is a signal, and a display device that moves and displays a display curtain based on the command from the command device, and the command device controls the display of the display device. The number of units up to the unit whose contents are switched is set in advance, and when the number of answer back signals sent in sequence matches the number of command units up to the display switching unit, the number of units up to the first command unit of the display switching unit is set in advance. After confirming that the command feed-through line is connected, a command signal is sent to the command unit to issue the display command of the display switching side unit, and the command unit that receives this display command switches to the answer link. After sending the signal, the command lead-in line between the units is opened again, and the display contents can be changed from any unit in the long formation by independently issuing display commands before and after the formation using each controller. A control method for a destination display device, characterized in that commands are automatically issued.