JP2008009686A - Tunnel disaster prevention system - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a tunnel disaster prevention system which is free from the possibility of erroneous connection of a power line and a communication control line in installation construction of the system and is free from the occurrence of non-operation and erroneous operation of devices in a tunnel due to the erroneous connection and reduces expenses of wire piping materials in comparison with construction of the power line and the communication control line and doesn't require a long time for installation work of wire piping materials. <P>SOLUTION: The tunnel disaster prevention system provided with a disaster prevention signal receiving board includes the power line for supplying power from the disaster prevention signal receiving board to a terminal device and a power line communication means for using the power line for power line communication. <P>COPYRIGHT: (C)2008,JPO&INPIT

Description

The present invention relates to a tunnel disaster prevention system.

  Conventionally, an R-type (transmission) tunnel disaster prevention system is known (see, for example, Patent Document 1).

  FIG. 6 is a block diagram showing a conventional R-type tunnel disaster prevention system 200.

  In the conventional R-type tunnel disaster prevention system 200, the disaster prevention reception panel and each device in the tunnel (for example, a fire detector, a fire hydrant, a water spray automatic valve, etc.) are connected via power supply wiring and transmission communication wiring. Has been.

In the tunnel disaster prevention system 200, the power cables 10 and 11 for supplying power and the communication control cable 80 for transmitting and receiving signals are always installed.
JP 2002-197555 A

  In the conventional tunnel disaster prevention system 200, the power cables 10 and 11 and the communication control cable 80 are always required. Therefore, the power cables 10 and 11 and the communication control cable 80 are incorrectly connected at the time of installation work. There is a possibility that the device in the tunnel does not operate or malfunctions if a wrong connection is made.

  Moreover, in the said conventional tunnel disaster prevention system 200, since material cost starts to both the power lines 10 and 11 and the communication control line 80, there exists a problem that the material cost of the whole tunnel disaster prevention system is high, and also the power lines 10 and 11 And the communication control line 80 are installed through pipes, and there is a problem that a lot of time is spent on work in this case.

The present invention eliminates the possibility of misconnection between the power line and the communication control line in the installation work of the tunnel disaster prevention system, and does not cause malfunction or malfunction of the equipment in the tunnel due to this misconnection. The object of the present invention is to provide a tunnel disaster prevention system in which the cost of the wire rod material is lower than the case of laying the communication wire and the communication control line, and the installation work of the wire rod material does not require a long time.

The present invention is a tunnel disaster prevention system having a disaster prevention reception panel, including a power line that supplies power from the disaster prevention reception panel to a terminal device, and a power line communication unit that uses the power line for power line communication.

According to the present invention, since the power line communication means that uses the power line for power line communication is provided, there is no possibility of erroneous connection between the power line and the communication control line in the installation work of the tunnel disaster prevention system. There will be no malfunction or malfunction, and the cost of wire piping will be lower than when laying power lines and communication control lines, and installation work for wire piping will not take a long time. There is an effect.

  The best mode for carrying out the invention is the following examples.

  FIG. 1 is a system diagram of a tunnel disaster prevention system 100 that is Embodiment 1 of the present invention.

  The tunnel disaster prevention system 100 includes a disaster prevention receiving board RE1, power lines 10 and 11, a relay board 20, a fire hydrant box 30 usually installed in a tunnel, and an automatic valve storage box 50 provided in the vicinity of the fire hydrant box 30. Have

  The power line 10 is supplied with, for example, 200V power, and the power line 11 is supplied with, for example, 100V power.

  If the distance between the disaster prevention receiving board RE1 and each of the terminal devices 31 to 35 is long, the relay board 20 for signal amplification is necessary, and if the distance is short, the relay board 20 is unnecessary.

  FIG. 2 is a view showing the fire hydrant box 30 and the automatic valve storage box 50 used in the tunnel disaster prevention system 100.

  The fire hydrant box 30 includes a power line communication converter (PLC modem) 40, a red indicator lamp 31, a push button notification device 32, a fire hydrant activation unit 33, a fire detector 34, and other devices 35.

  The automatic valve storage box 50 includes an automatic valve 51 and a pressure switch 52. Other equipment 60 is connected to the automatic valve storage box 50.

  FIG. 3 is a block diagram showing the converter 40 for power line communication.

  The power line communication converter 40 includes a power line connection unit 41, a signal superimposing / dividing unit 42, signal conversion for converting the divided signals into signals that can be supported by the terminal device, and a transformer for converting the power to match the terminal device, It has the control part 43 which performs operation | movement, a test, etc. of a terminal device, and each terminal device connection part 44.

  Next, the operation of the tunnel disaster prevention system 100 will be described.

  First, when each terminal device receives various signals from the receiving board RE1, the power line connection unit 41 receives the power and various signals via the power lines 10 and 11, and the signal superimposing / dividing unit 42 receives the power from the power. Various signals are divided. The divided various signals are converted into control signals for predetermined power, operation, testing, etc. in the signal conversion / transformer / control unit 43, and transmitted to each terminal device via each terminal device connection unit 44. .

  The case where various signals are transmitted from each terminal device to the receiving panel RE1 is the reverse of the above description. That is, a signal from each terminal device is sent to the signal conversion, transformer, and control unit 43 via each terminal device connection unit 44, and the signal conversion, transformer, and control unit 43 perform operations, tests, etc. of the terminal device. The signal is converted so as to be able to be performed, and the converted signal is superimposed on the electric power in the signal superimposing / dividing unit 42, sent to the power lines 10 and 11 via the power line connecting unit 41, and sent to the disaster prevention receiving board RE1. .

  According to the above embodiment, since the power line and the communication control line are shared with each other in the installation work of the tunnel disaster prevention system, there is no possibility of misconnection between the power line and the communication control line. The equipment does not malfunction or malfunction, and the cost of the wire rod material in the embodiment is lower than when both the power line and the communication control line are installed. Work does not take a long time.

  In other words, according to the above embodiment, by using power line communication in a tunnel disaster prevention system, each device installed in the tunnel, such as a fire hydrant, a notification device, a fire detector, a water spray automatic valve, etc., is monitored only by the power line. Because it can control, test, etc., it is not necessary to lay a cable for communication control, which is necessary in the past, and labor and material costs during wiring and piping work can be reduced. Therefore, it is possible to construct a safer and simpler tunnel disaster prevention system without erroneously connecting the communication control lines.

Here, although the R type (transmission) tunnel disaster prevention system has been described as an example, power line communication may also be applied to a P type (direct transmission) tunnel disaster prevention system.

It is a systematic diagram of the tunnel disaster prevention system 100 which is Example 1 of this invention. It is a figure which shows the fire hydrant box 30 and the automatic valve storage box 50 which are used with the tunnel disaster prevention system 100. FIG. It is a block diagram which shows the converter 40 for power line communications. 1 is a block diagram showing a conventional R-type (transmission) tunnel disaster prevention system 200. FIG.

Explanation of symbols

100 ... Tunnel disaster prevention system,
10, 11 ... power lines,
30 ... Fire hydrant box,
31 ... Red indicator light,
32 ... Push button type reporting device,
33 ... Fire hydrant starting part,
34 ... Fire detector,
35 ... Other equipment,
40: Power line communication required converter (PLC modem),
41 ... Power line connection part,
42 ... signal superimposing / dividing unit,
43: Signal conversion, transformer, control unit,
44 ... each terminal equipment connection part,
50 ... Automatic valve storage box.

Claims (4)

In a tunnel disaster prevention system equipped with a disaster prevention reception board,
A power line for supplying power to the terminal device from the disaster prevention reception board;
Power line communication means using the power line for power line communication;
A tunnel disaster prevention system characterized by comprising: In claim 1,
The tunnel disaster prevention system, wherein the terminal device is at least one of a push button notification device, a fire hydrant, a fire detector, and a water spray automatic valve. In claim 1,
The power line communication means is an operation control signal for controlling the operation of the terminal device between the disaster prevention receiving board and the terminal device by power line communication via the power line, and a status display for displaying the state of the terminal device. A tunnel disaster prevention system, which is means for transmitting and receiving signals and operation test signals for performing an operation test of the terminal device. In claim 1,
The above-mentioned power line communication means is a means having a power line connecting part, a signal superimposing / dividing part, a signal converting part, and each terminal equipment connecting part.

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