Disaster prevention terminal device and disaster prevention system

Abstract

To make it possible to cope with a problem by easily identifying a place where line abnormalities occur even in a configuration where two different internal wirings are derived from each of switch terminals and a signal wiring and the internal wirings are connected in series.SOLUTION: A disaster prevention terminal device 12 includes a push switch 14 and a terminal block 16. A first internal wiring 1810 and a second internal wiring 1812 are derived from a first switch terminal 1410 of the push switch 14, and a third internal wiring 1820 and a fourth internal wiring 1822 are derived from a second switch terminal 1420. The terminal block 16 includes: a first terminal 1610 to which a signal line 1110 and the first internal wiring 1810 are connected; a second terminal 1612 to which the signal line 1110 and the second internal wiring 1812 are connected; a third terminal 1620 to which a common line 1120 and the third internal wiring 1820 are connected; and a fourth terminal 1622 to which the common line 1120 and the fourth internal wiring 1822 are connected. A wiring test unit 20 is provided between the second terminal 1612 and the fourth terminal 1622.SELECTED DRAWING: Figure 2

Description

Technical Field

[0001] The present invention relates to a disaster prevention terminal device provided with an operation switch, and a disaster prevention system provided with a plurality of disaster prevention terminal devices.

Background Art

[0002] Conventionally, fire hydrant devices have been installed as emergency facilities inside tunnels such as highways and motorways. The fire hydrant device includes, for example, a valve group including a fire hose and a fire hydrant valve in a fire hydrant storage section inside a housing provided with a fire hydrant door, and two fire extinguishers are stored in a fire extinguisher storage section inside a housing provided with a fire extinguisher door. Also, generally, fire hydrant devices are installed at predetermined intervals, for example, at 50-meter intervals, in the longitudinal direction of the tunnel.

[0003] In addition, an emergency reporting device provided integrally with the fire hydrant device includes a red indicator light, a transmitter, a response lamp indicating that the transmitter has been pressed, and a telephone jack for making a call between the fire hydrant device and a disaster prevention receiving board installed in an electrical room during maintenance, etc. Further, in the fire hydrant storage section of the fire hydrant device, there are provided a pump starting device used when the fire department starts the fire pump facility and a pump starting interlocking device interlocked with the operation of the fire hydrant valve.

[0004] In addition, conventional emergency facilities connect a transmitter or the like to a signal wiring drawn from a disaster prevention receiving board. When the transmitter is operated, a fire alarm signal is transmitted as a transmission signal from the transmitter to the disaster prevention receiving board to output a fire alarm to the disaster prevention receiving board and, for example, display a tunnel entry prohibition on an alarm display board at the tunnel entrance. Also, in conventional emergency facilities, the disaster prevention receiving board has a function of monitoring disconnection of signal wiring to a transmitter or the like (Patent Document 1).

[0005] However, in conventional emergency facilities, a plurality of connection wirings are led out from the middle of the signal wiring from the disaster prevention receiving board to connect devices such as transmitters, and there is a problem that the connection wirings are not monitored for disconnection. For example, the wiring to the transmitter of the emergency reporting device provided integrally with the fire hydrant device is performed via a terminal block provided inside the housing of the fire hydrant device. Although the signal wiring from the disaster prevention receiving board to the terminal block can be monitored for disconnection, the internal wiring (connection wiring) from the terminal block to the transmitter cannot be monitored for disconnection.

[0006] To solve this problem, a pressing switch (operation switch) and a terminal block having a plurality of terminals are provided. Two internal wirings are led out from one switch terminal of the pressing switch and connected to two terminals of the terminal block, and the other two internal wirings are led out from the other switch terminal and connected to the other two terminals of the terminal block. The transmitting equipment (disaster prevention terminal device) is applied to the transmitter, and the signal wiring from the disaster prevention receiving board is connected to the terminal block to connect the signal wiring and the internal wiring in series, so that not only the signal wiring from the disaster prevention receiving board but also the internal wiring from the terminal block to the pressing switch can be monitored (Patent Document 2).

Prior Art Documents

Patent Documents

[0007]

Patent Document 1

Patent Document 2

Summary of the Invention

Problems to be Solved by the Invention

[0008] However, in Patent Document 2, when a disconnection occurs in either the signal wiring or the internal wiring, since no current flows through the signal wiring regardless of the location where the disconnection occurs, there is a problem that it is difficult to identify the location of the disconnection. For this reason, in order to identify the disconnection location, workers etc. go to the site where the fire hydrant device is installed, and it is necessary to check each wiring (signal wiring and internal wiring) one by one until the disconnection location can be identified. However, this work takes time, and it is also a problem that it takes time to restore the disconnection. The larger the scale of the disaster prevention system, the more difficult and time-consuming the restoration work becomes.

[0009] In addition, if it takes time to restore the disconnection, depending on the location where the disconnection occurs, there is also a possibility that when a fire breaks out near the disaster prevention terminal device whose function has stopped due to the disconnection, it may fall into a state where reporting by operating the transmitter cannot be performed smoothly.

[0010] An object of the present invention is to provide a disaster prevention terminal device and a disaster prevention system that can easily identify and deal with a location where a line abnormality such as a disconnection has occurred, even in a configuration where two different internal wirings are led out from each of the switch terminals of the operation switch of the disaster prevention terminal device and the signal wiring from a higher-level device such as a disaster prevention receiving board and the internal wiring are connected in series.

Means for Solving the Problems

[0011] (Disaster prevention terminal device) The present invention has a first switch terminal and a second switch terminal, an operation switch that short - circuits between the first switch terminal and the second switch terminal by a predetermined operation, a first internal wiring and a second internal wiring led out from the first switch terminal of the operation switch, a third internal wiring and a fourth internal wiring led out from the second switch terminal of the operation switch, a wiring connection part to which a pair of signal wirings from the outside are connected to the first internal wiring to the fourth internal wiring, and is a disaster prevention terminal device provided with The wiring connection part a first wiring connection point to which the first internal wiring and one of the pair of signal wirings from the outside are connected, A second wiring connection point to which one of the second internal wiring and a pair of signal wirings from the outside is connected, A third wiring connection point to which the third internal wiring and the other of the pair of signal wirings from the outside are connected, A fourth wiring connection point to which the fourth internal wiring and the other of the pair of signal wirings from the outside are connected, and comprising: A wiring test unit for testing the line state of a wiring path including the first to fourth internal wirings is provided between any one of the first wiring connection point and the second wiring connection point of the wiring connection unit and any one of the third wiring connection point and the fourth wiring connection point.

[0012] (Wiring test unit) The wiring test unit serially connects a wiring test operation unit, a wiring monitoring resistor, and a current display unit between any one of the first wiring connection point and the second wiring connection point of the wiring connection unit and any one of the third wiring connection point and the fourth wiring connection point. The state of the wiring test current flowing through the wiring path including the first to fourth internal wirings and the wiring test unit corresponding to the wiring monitoring resistor is displayed on the current display unit by operating the wiring test operation unit, thereby notifying the line state of the wiring path including the first to fourth internal wirings.

[0013] (Current display unit) The current display unit notifies that the line state of the wiring path including the first to fourth internal wirings is normal by lighting up with the wiring test current flowing corresponding to the wiring monitoring resistor when the wiring test operation unit is operated.

[0014] (Display test unit) The wiring test unit further includes a display test unit that flows a current through the current display unit without passing through the first to fourth internal wirings by operating the display test operation unit and confirms the display by the current display unit.

[0015] (Wiring test unit provided in the test device) The wiring test unit is provided in a predetermined test device that can be connected to the disaster prevention terminal device. By connecting a test device to the disaster prevention terminal device, a wiring test unit is provided between either the first wiring connection point or the second wiring connection point of the wiring connection unit and either the third wiring connection point or the fourth wiring connection point.

[0016] (Monitoring the wiring status of a plurality of operation switches connected in parallel 1) Furthermore, it includes another operation switch connected in parallel to the operation switch, The first switch terminal of the operation switch and the first switch terminal of another operation switch, and the second switch terminal of the operation switch and the second switch terminal of another operation switch are connected by parallel internal wiring.

[0017] (Monitoring the wiring status of a plurality of operation switches connected in parallel 2) Moreover, the present invention is an invention that enables testing the line status of parallel internal wiring for connecting operation switches in parallel. An operation switch and another operation switch having a first switch terminal and a second switch terminal, and short-circuiting between the first switch terminal and the second switch terminal by a predetermined operation, A first internal wiring led out from the first switch terminal of the operation switch, A second internal wiring led out from the first switch terminal of another operation switch, A third internal wiring led out from the second switch terminal of the operation switch, A fourth internal wiring led out from the second switch terminal of another operation switch, A wiring connection unit to which a pair of signal wirings from the outside are connected to the first internal wiring to the fourth internal wiring, A disaster prevention terminal device comprising: The first switch terminal of the operation switch and the first switch terminal of another operation switch, and the second switch terminal of the operation switch and the second switch terminal of another operation switch are connected by parallel internal wiring, The wiring connection unit is A first wiring connection point to which the first internal wiring and one of the pair of signal wirings from the outside are connected, A second wiring connection point to which the second internal wiring and one of the pair of signal wirings from the outside are connected, A third wiring connection point to which the third internal wiring and the other of the pair of signal wirings from the outside are connected, A fourth wiring connection point to which the fourth internal wiring and the other of the pair of signal wirings from the outside are connected, Comprising, A wiring test unit for testing the line state of a wiring path including the first to fourth internal wirings and the parallel internal wiring is provided between either the first wiring connection point or the second wiring connection point of the wiring connection portion and either the third wiring connection point or the fourth wiring connection point.

[0018] (Disaster prevention system) Further, the present invention is a disaster prevention system provided with a plurality of the above-described disaster prevention terminal devices, One of the pair of signal wirings is drawn from an upper device and is sequentially connected to the first wiring connection point and the second wiring connection point of each disaster prevention terminal device so that either the first wiring connection point or the second wiring connection point not connected to the wiring test unit is on the upstream side, and The other of the pair of signal wirings is drawn from an upper device and is sequentially connected to the third wiring connection point and the fourth wiring connection point of each disaster prevention terminal device so that either the third wiring connection point or the fourth wiring connection point not connected to the wiring test unit is on the upstream side, The ends of one of the pair of signal wirings and the other of the pair of signal wirings are connected via a termination resistor, The upper device is characterized by monitoring the line state of a signal line including the pair of signal wirings and the first to fourth internal wirings.

[0019] (Termination resistor disconnection switch) In the disaster prevention system, any one of the first to fourth wiring connection points to which the wiring test unit is connected is Any one of the first to fourth internal wirings connected to any one of the first to fourth wiring connection points and the first connection point to which the wiring test unit is connected, A second connection point to which a signal wiring drawn to the downstream side is connected, Comprising, The wiring test unit is provided between the first connection point and the second connection point, and includes a disconnect switch that disconnects the connection between the first connection point and the second connection point in conjunction with a predetermined test operation.

[0020] (Disaster prevention receiving panel and fire hydrant device) In the disaster prevention system, the upper device is a disaster prevention receiving panel, and the disaster prevention terminal device is a predetermined device provided in a fire hydrant device connected to the signal wiring from the disaster prevention receiving panel.

[0021] (Test of wiring for the pressing switch of the transmitter) The predetermined device serving as the disaster prevention terminal device is a transmitter provided with a pressing switch that transmits a fire alarm signal to the disaster prevention receiving panel when pressed as an operation switch, The wiring test unit tests the line state of the wiring for the pressing switch of the transmitter.

[0022] (Test of wiring for the pressing switches of the pump starting device and the pump start interlocking device) The predetermined device serving as the disaster prevention terminal device is a pump starting device provided with a pressing switch that transmits a pump start signal to the disaster prevention receiving panel when pressed as an operation switch, and a pump start interlocking device provided with a pressing switch that is connected in parallel to the pressing switch of the pump starting device as an operation switch, detects the opening operation of the fire hydrant valve, and transmits a pump start signal to the disaster prevention receiving panel, and the wiring test unit tests the line state of the wiring for the pressing switches of the pump starting device and the pump start interlocking device.

Advantages of the Invention

[0023] (Advantages of the disaster prevention terminal device) The present invention relates to a disaster prevention terminal device comprising an operation switch having a first switch terminal and a second switch terminal and short-circuiting between the first switch terminal and the second switch terminal by a predetermined operation, a first internal wiring and a second internal wiring led out from the first switch terminal of the operation switch, a third internal wiring and a fourth internal wiring led out from the second switch terminal of the operation switch, and a wiring connection portion to which a pair of signal wirings from the outside are connected to the first internal wiring to the fourth internal wiring. The wiring connection portion includes a first wiring connection point to which one of the first internal wiring and a pair of signal wirings from the outside is connected, a second wiring connection point to which one of the second internal wiring and a pair of signal wirings from the outside is connected, a third wiring connection point to which the other of the third internal wiring and a pair of signal wirings from the outside is connected, and a fourth wiring connection point to which the other of the fourth internal wiring and a pair of signal wirings from the outside is connected. A wiring test portion for testing a line state of a wiring path including the internal wiring to the fourth internal wiring is provided between any one of the first wiring connection point or the second wiring connection point of the wiring connection portion and any one of the third wiring connection point or the fourth wiring connection point. Therefore, in the disaster prevention terminal device provided with the wiring test portion, it is possible to test a line state of a wiring path including the internal wiring (the first internal wiring to the fourth internal wiring) of the disaster prevention terminal device. For this reason, when a line abnormality is detected in a disaster prevention system including a plurality of disaster prevention terminal devices, the disaster prevention terminal device in which the line abnormality has occurred can be specified (found) by the test by the wiring test portion of each disaster prevention terminal device, the location where the line abnormality has occurred can be specified easily and simply, and prompt countermeasures can be taken by replacing and repairing the wiring and the like.

[0024] Also, conventionally, at a site where a disaster prevention terminal device that could not test (confirm) the line state was installed, it is possible to test the line state of a wiring path including the internal wiring of the disaster prevention terminal device, and the reliability of the state monitoring of the wiring including the internal wiring of the disaster prevention terminal device can be improved.

[0025] (Effect of the wiring test portion) Further, the wiring test unit serially connects a wiring test operation unit, a wiring monitoring resistor, and a current display unit between either the first wiring connection point or the second wiring connection point of the wiring connection unit and either the third wiring connection point or the fourth wiring connection point. By operating the wiring test operation unit to display the state of the wiring test current flowing through the wiring path including the first to fourth internal wirings and the wiring test unit corresponding to the wiring monitoring resistor on the current display unit, the line state of the wiring path including the first to fourth internal wirings is notified. Therefore, it is possible to realize the wiring test unit with a simple configuration of serially connecting a wiring test operation unit, a wiring monitoring resistor, and a current display unit between either the first wiring connection point or the second wiring connection point of the wiring connection unit and either the third wiring connection point or the fourth wiring connection point. Also, since the line state of the wiring path including the internal wiring can be determined by the display on the current display unit, it is possible to easily and surely grasp the line state of the wiring path including the internal wiring.

[0026] (Effect of the current display unit) In addition, the current display unit lights up by the wiring test current flowing corresponding to the wiring monitoring resistor when the wiring test operation unit is operated, thereby notifying that the line state of the first to fourth internal wirings is normal. Therefore, if the light-emitting unit lights up when the wiring test operation unit is operated, it can be known that the internal wiring is normal, and if the light-emitting unit does not light up, it can be known that the internal wiring is disconnected. Thus, it is possible to easily and surely grasp the line state of the wiring path including the internal wiring.

[0027] (Effect of the display test unit) Furthermore, the wiring test unit is further provided with a display test unit that passes a current through the current display unit without passing through the first to fourth internal wirings by operating the display test operation unit and checks the display by the current display unit. Therefore, regardless of the line state of the first to fourth internal wirings, it is possible to check whether the current display unit displays normally by operating the display test operation unit of the display test unit before testing the line state, and it is possible to prevent erroneously determining a failure of the current display unit as an abnormality of the wiring path including the internal wiring. (Effect of the wiring test unit provided in the test device) In addition, the wiring test unit is provided in a predetermined test device that can be connected to the disaster prevention terminal device. By connecting the test device to the disaster prevention terminal device, the wiring test unit is provided between either the first wiring connection point or the second wiring connection point of the wiring connection unit and either the third wiring connection point or the fourth wiring connection point. Therefore, it is not necessary to provide a wiring test unit in the disaster prevention test device, simplifying the configuration of the disaster prevention terminal device for testing the line state of the wiring path including the internal wiring and making it possible to reduce costs.

[0028] (Effect of state monitoring 1 of wiring of a plurality of operation switches connected in parallel) Furthermore, it is provided with another operation switch connected in parallel to the operation switch. Since the first switch terminal of the operation switch and the first switch terminal of the other operation switch, and the second switch terminal of the operation switch and the second switch terminal of the other operation switch are connected by parallel internal wiring, even when the operation switch and the other operation switch are connected in parallel, it is possible to test the line state of the first internal wiring to the fourth internal wiring in the same manner as in the case of a single operation switch.

[0029] (Effect of disconnection monitoring 2 of operation switches connected in parallel) In addition, the present invention is an invention that enables testing of the line state of parallel internal wiring that connects operation switches in parallel. It has a first switch terminal and a second switch terminal, and an operation switch that short - circuits between the first switch terminal and the second switch terminal by a predetermined operation, and another operation switch, a first internal wiring led out from the first switch terminal of the operation switch, a second internal wiring led out from the first switch terminal of the other operation switch, a third internal wiring led out from the second switch terminal of the operation switch, a fourth internal wiring led out from the second switch terminal of the other operation switch, and a wiring connection part to which a pair of signal wirings from the outside are connected to the first internal wiring to the fourth internal wiring. It is a disaster - prevention terminal device, in which the first switch terminal of the operation switch and the first switch terminal of the other operation switch, and between the second switch terminal of the operation switch and the second switch terminal of the other operation switch are connected by parallel internal wiring. The wiring connection part includes a first wiring connection point to which one of the first internal wiring and a pair of signal wirings from the outside is connected, a second wiring connection point to which one of the second internal wiring and a pair of signal wirings from the outside is connected, a third wiring connection point to which the other of the third internal wiring and a pair of signal wirings from the outside is connected, and a fourth wiring connection point to which the other of the fourth internal wiring and a pair of signal wirings from the outside is connected. A wiring test part for testing the line state of the wiring path including the first internal wiring to the fourth internal wiring and the parallel internal wiring is provided between any one of the first wiring connection point or the second wiring connection point of the wiring connection part and any one of the third wiring connection point or the fourth wiring connection point. Therefore, when the operation switch and the other operation switch are connected in parallel by parallel internal wiring, in addition to the first internal wiring to the fourth internal wiring, it is possible to test the line state of the parallel internal wiring that connects the operation switch and the other operation switch in parallel.

[0030] (Effect of disaster - prevention system) The present invention also relates to a disaster prevention system provided with a plurality of the above-described disaster prevention terminal devices. One of a pair of signal wirings is drawn from a host device and is sequentially connected to the first wiring connection point and the second wiring connection point of each disaster prevention terminal device such that either the first wiring connection point or the second wiring connection point to which the wiring test unit is not connected is on the upstream side. The other of the pair of signal wirings is drawn from the host device and is sequentially connected to the third wiring connection point and the fourth wiring connection point of each disaster prevention terminal device such that either the third wiring connection point or the fourth wiring connection point to which the wiring test unit is not connected is on the upstream side. The terminals of one of the pair of signal wirings and the other of the pair of signal wirings are connected via a termination resistor. The host device monitors the line state of the signal line including the pair of signal wirings and the first to fourth internal wirings. Therefore, the line state of the signal line including the signal wirings and the first to fourth internal wirings is monitored by the host device. When a line abnormality such as a disconnection is detected in the signal line by the host device, by sequentially performing tests by the wiring test unit starting from the upstream disaster prevention terminal device, it is possible to identify (detect) the disaster prevention terminal device in which the line abnormality has occurred, easily identify the location where the line abnormality has occurred, and enable prompt countermeasures such as replacement and repair of the wiring.

[0031] In addition, since the signal wiring drawn from the host device and the first to fourth internal wirings of the disaster prevention terminal device are connected in one piece, the wiring test unit provided in each disaster prevention terminal device can test the line state not only for the internal wirings but also for one of the signal wirings connected to the upstream signal wiring connected to the disaster prevention terminal device where the wiring test unit is provided, that is, the first wiring connection part or the second wiring connection part to which the wiring test unit is not connected, and the other of the signal wirings connected to the third wiring connection part or the fourth wiring connection part to which the wiring test unit is not connected. This makes it possible to improve the reliability of the state monitoring of the signal line including the signal wiring and the first to fourth internal wirings.

[0032] (Effect of the disconnection switch of the termination resistor) Further, any one of the first to fourth wiring connection points to which the wiring test unit is connected includes any one of the first to fourth internal wirings connected to any one of the first to fourth wiring connection points and the first connection point to which the wiring test unit is connected, and a second connection point to which a signal wiring drawn to the downstream side is connected. The wiring test unit is provided between the first connection point and the second connection point and includes a disconnect switch that disconnects the connection between the first connection point and the second connection point in conjunction with a predetermined test operation. Therefore, when the disconnect switch is not provided, the wiring current flowing through the signal line during the test by the wiring test unit is the sum of the wiring test current flowing through the wiring test unit to the state monitoring current corresponding to the termination resistor, whereas when the disconnect switch is provided, the termination resistor is disconnected from the upper device by the disconnect switch, and only the wiring test current flows through the signal line without the state monitoring current corresponding to the termination resistor flowing through it, making it possible to prevent an increase in the wiring current flowing through the signal line during the test by the wiring test unit.

[0033] And since it is possible to prevent an increase in the wiring current flowing through the signal line during the test by the wiring test unit, it is possible to suppress and prevent the disaster prevention receiving panel from misjudging the change in the wiring current during the test by the wiring test unit as the operation of the operation switch of the disaster prevention terminal device (the increase in the wiring current flowing through the signal line accompanying the operation of the operation switch).

[0034] (Effect of disaster prevention receiving panel and fire hydrant device) Further, the upper device is a disaster prevention receiving panel, the disaster prevention terminal device is a predetermined device such as a transmitter, a pump starting device, and a pump starting interlocking device provided in a fire hydrant device connected to the signal wiring from the disaster prevention receiving panel. Since the wiring test unit is configured to test the line state of the wiring to the push switches of the transmitter, the pump starting device, and the pump starting interlocking device, it is possible to easily and surely know the line state of the wiring to the push switches provided in each of the transmitter, the pump starting device, and the pump starting interlocking device of the fire hydrant device connected to the signal wiring from the disaster prevention receiving panel through a test at the installation site of the fire hydrant device.

Brief Description of the Drawings

[0035]

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Embodiments for Carrying Out the Invention

[0036] Hereinafter, embodiments of the disaster prevention terminal device and the disaster prevention system according to the present invention will be described in detail with reference to the drawings. Note that the present invention is not limited by the following embodiments.

[0037] [Basic Concepts of Embodiments] First, the basic concepts of the embodiments will be described. The embodiments relate to a disaster prevention terminal device schematically including an operation switch, internal wiring, and a wiring connection part, and a disaster prevention system provided with a plurality of such disaster prevention terminal devices.

[0038] Here, the "operation switch" has a first switch terminal and a second switch terminal, and shorts between the first switch terminal and the second switch terminal by a predetermined operation.

[0039] Also, the type, configuration, and structure of the "operation switch" are arbitrary, but for example, it includes a normally open switch or the like. As the "normally open switch", for example, it includes a "push switch" having a normally open contact (so-called a contact) and closing and conducting between contacts by pressing a pressing part serving as an operation part.

[0040] Further, the "switch terminal" is a conductor part for electrically connecting wiring to the contact of an operation switch, and is a concept that may include the case where it is substantially the switch contact itself of the operation switch. For example, the switch terminal may be provided directly on a conductor plate having the contact of the operation switch. Of course, inside the switch, the connection between each contact and the corresponding switch terminal may be connected by a short wiring or other conductor components. The operation switch only needs to be one that does not conduct between the switch terminals (between one switch terminal and the other) during normal times and conducts between the switch terminals when a predetermined operation is performed, and is not limited to a push switch. For example, various switches such as slide switches can be applied. Also, various switch methods such as a locking type and a non-locking type can be applied.

[0041] Further, the "internal wiring" refers to the wiring routed in the disaster prevention terminal device such as the internal wiring (first to fourth internal wiring) led out from the operation switch and the internal wiring (parallel internal wiring) for connecting a plurality of operation switches in parallel. In contrast, the "signal wiring" refers to the wiring led out from the outside of the disaster prevention terminal device, for example, from a host device and connected to the disaster prevention terminal device.

[0042] Further, the "wiring connection part" is one to which the internal wiring led out from the operation switch and the signal wiring from the outside of the disaster prevention terminal device are connected. Its type, configuration, and structure are arbitrary, and for example, a terminal block having a plurality of terminals is included. The terminal block (terminal box having a terminal block) may be provided inside the disaster prevention terminal device or outside thereof.

[0043] Furthermore, in the disaster prevention terminal device of the embodiment, the wiring connection part includes a first wiring connection point to which one of the first internal wiring and a pair of signal wirings from the outside is connected, a second wiring connection point to which one of the second internal wiring and a pair of signal wirings from the outside is connected, a third wiring connection point to which the other of the third internal wiring and a pair of signal wirings from the outside is connected, and a fourth wiring connection point to which the other of the fourth internal wiring and a pair of signal wirings from the outside is connected. A wiring test unit for testing the line state of the wiring path including the first internal wiring to the fourth internal wiring is provided between any one of the first wiring connection point or the second wiring connection point of the wiring connection part and any one of the third wiring connection point or the fourth wiring connection point.

[0044] Here, the "wiring connection point" is a connection point that enables electrical connection of internal wirings, signal wirings, etc. connected to the same wiring connection point. For example, when the wiring connection part is a "terminal block", the "terminals" provided in the terminal block become the wiring connection points.

[0045] Note that the connection points between each wiring such as internal wirings and signal wirings connected to the same wiring connection point and the wiring connection point do not necessarily have to be physically in the same location. For example, when the "wiring connection point" is a terminal provided in a terminal block, if the terminal to which the internal wiring is connected and the terminal to which the signal wiring is connected are different terminals, and the two terminals are electrically connected by a wiring or the like, although the connection points of the internal wiring and the signal wiring are physically different, they can be regarded as the same electrical connection point, so the internal wiring and the signal wiring are connected to the same wiring connection point.

[0046] Also, although the operation switch terminals, internal wirings, and wiring connection points are labeled with "Zero-th", this is only for the purpose of distinction and does not limit the internal wirings and wiring connection points by being labeled with "Zero-th". For example, in a disaster prevention terminal device, the first internal wiring and the second internal wiring are led out from the first switch terminal of the operation switch, and the third internal wiring and the fourth internal wiring are led out from the second switch terminal. This includes all inventions in which two different internal wirings are led out from any switch terminal of the operation switch, and two different internal wirings are led out from a switch terminal different from that switch terminal, and the invention is not limited by the term "Zero-th". The same applies to "one side" and "the other side" in the signal wiring. For example, in the "specific content of the embodiment" described later, the signal wiring is described as including a "signal line" and a "common line", but "signal line" may be applied to "one side" of the signal wiring and "common line" may be applied to "the other side" of the signal wiring, or "common line" may be applied to "one side" of the signal wiring and "signal line" may be applied to "the other side" of the signal wiring.

[0047] Also, the "between any one of the first wiring connection points of the wiring connection part or the second wiring connection part and any one of the third wiring connection points or the fourth wiring connection points" where the wiring test part is provided means "between the first wiring connection point and the third wiring connection point", "between the first wiring connection point and the fourth wiring connection point", "between the second wiring connection point and the third wiring connection point", or "between the second wiring connection point and the fourth wiring connection point", including four patterns. That is, it is sufficient that the wiring test part is provided so that the first to fourth internal wirings are connected in series via the wiring test part.

[0048] Also, the type, configuration, and structure of the "wiring test part" are arbitrary. For example, between any one of the first wiring connection points of the wiring connection part or the second wiring connection part and any one of the third wiring connection points or the fourth wiring connection points, a wiring test operation part, a wiring monitoring resistor, and a current display part are connected in series, and by operating the wiring test operation part, the state of the wiring test current flowing through the wiring path including the first to fourth internal wirings and the wiring test part corresponding to the wiring monitoring resistor is displayed on the current display part to notify the line state of the wiring path including the first to fourth internal wirings.

[0049] Also, the "wiring test operation unit" is operated to pass a wiring test current through a wiring path including the first to fourth internal wirings and a wiring test unit when testing the line state of the wiring path including the first to fourth internal wirings. For example, it is operated by a pressing operation (on operation, test operation) when testing, and includes a wiring test switch that short-circuits between switch terminals by the pressing operation.

[0050] Also, the configuration of the "current display unit" and the display mode of the state of the wiring test current are arbitrary. For example, when the wiring test operation unit is operated, it is provided with a light-emitting unit that operates (lights up) by the wiring test current flowing corresponding to the wiring monitoring resistor to notify normality. Conversely, when the light-emitting unit does not operate, that is, when the wiring test current does not flow, a disconnection has occurred in the wiring path including the first to fourth internal wirings, and the non-operation of the light-emitting unit means notification of the disconnection. Also, the current display unit may be configured to display the state of the wiring test current and may include an ammeter, a bar graph display, etc. in addition to the light-emitting unit.

[0051] In this way, by configuring a disaster prevention system using a disaster prevention terminal device provided with a wiring test unit, when a line abnormality is detected in the disaster prevention system, the disaster prevention terminal device where the line abnormality has occurred can be identified (discovered) by the test in the wiring test unit of each disaster prevention terminal device, the location where the line abnormality has occurred can be easily and simply identified, and prompt countermeasures can be taken for wiring replacement and repair, etc.

[0052] Also, the "wiring test unit" may include a display test unit that passes a current through the current display unit without passing through the first to fourth internal wirings by operating the display test operation unit and confirms the display by the current display unit, in addition to the wiring test operation unit, the wiring monitoring resistor, and the current display unit. Also, the "display test operation unit" is operated when confirming the display by the current display unit. For example, it is operated by a pressing operation (on operation, test operation) when testing, and includes a display test switch that short-circuits between switch terminals by the pressing operation.

[0053] By providing the wiring test unit with the display test unit, it is possible to prevent the situation where, before testing the line state, the display test operation unit is operated to confirm that the current display unit displays normally, and then the abnormal state where the current display unit does not display normally due to a failure or the like of the current display unit is erroneously determined as an abnormality in the wiring path including the internal wiring.

[0054] In addition, the disaster prevention terminal device of the embodiment is provided with a wiring test unit for testing the line state of the wiring path including the first internal wiring to the fourth internal wiring. However, the location where the wiring test unit is provided is not limited to the inside of the disaster prevention terminal device, and it may be outside the disaster prevention terminal device. When the wiring test unit is provided outside the disaster prevention terminal device, for example, the wiring test unit is provided in a predetermined test device that can be connected to the disaster prevention terminal device, and by connecting the test device to the disaster prevention terminal device, the wiring test unit may be provided between any one of the first wiring connection point or the second wiring connection point of the wiring connection unit and any one of the third wiring connection point or the fourth wiring connection point.

[0055] By providing the wiring test unit in a test device that can be connected to the disaster prevention terminal device, it is not necessary to provide the wiring test unit in the disaster prevention terminal device, the configuration of the disaster prevention terminal device for testing the line state of the wiring path including the internal wiring can be simplified, and the cost can be reduced.

[0056] In addition, the disaster prevention terminal device of the embodiment, in addition to the operation switch, further includes another operation switch that short - circuits between the first switch terminal and the second switch terminal by a predetermined operation in the same way. The first switch terminal of the operation switch and the first switch terminal of the other operation switch, and the second switch terminal of the operation switch and the second switch terminal of the other operation switch are connected by parallel internal wiring, and it may be provided with the parallel - connected operation switch and the other operation switch.

[0057] However, even if another operation switch is connected in parallel to the operation switch that derives the first internal wiring and the second internal wiring from the first switch terminal and the third internal wiring and the fourth internal wiring from the second switch terminal by parallel internal wiring, the wiring test unit cannot test the line state of the parallel internal wiring.

[0058] Therefore, in order to enable the wiring test unit to test the circuit state of the internal wiring with parallel internal wirings added to the first to fourth internal wirings, the first internal wiring is led out from the first switch terminal of the operation switch, the second internal wiring is led out from the first switch terminal of another operation switch, the third internal wiring is led out from the second switch terminal of the operation switch, the fourth internal wiring is led out from the second switch terminal of another operation switch, and the disaster prevention terminal device may be configured such that the first switch terminal of the operation switch and the first switch terminal of another operation switch, and the second switch terminal of the operation switch and the second switch terminal of another operation switch are connected by parallel internal wirings. By configuring the disaster prevention terminal device in this way, the first to fourth internal wirings and the parallel internal wirings are connected together, and it becomes possible to test the wiring path including the internal wiring with parallel internal wirings added to the first to fourth internal wirings.

[0059] Also, in a disaster prevention system provided with a plurality of the above-described disaster prevention terminal devices, one of a pair of signal wirings is drawn out from the upper device and is sequentially connected to the first wiring connection point and the second wiring connection point of each disaster prevention terminal device such that either the first wiring connection point or the second wiring connection point to which the wiring test unit is not connected is on the upstream side, and the other of the pair of signal wirings is drawn out from the upper device and is sequentially connected to the third wiring connection point and the fourth wiring connection point of each disaster prevention terminal device such that either the third wiring connection point or the fourth wiring connection point to which the wiring test unit is not connected is on the upstream side, and the ends of one of the pair of signal wirings and the other of the pair of signal wirings are connected via a termination resistor. Note that the "upstream side" refers to the side of the upper device.

[0060] By connecting the wiring in this way, a pair of signal wirings drawn from the upper device are joined together via the first to fourth internal wirings and the termination resistor, and the upper device monitors the line state of the signal line including the pair of signal wirings and the first to fourth internal wirings. When a line abnormality such as a disconnection is detected in the signal line by the upper device, the test by the wiring test unit is sequentially performed from the upstream disaster prevention terminal device, so that the disaster prevention terminal device where the line abnormality has occurred can be identified (discovered), the location where the line abnormality has occurred can be easily and simply identified, and prompt countermeasures such as replacement and repair can be enabled.

[0061] In addition, the disaster prevention system is applied to emergency facilities such as a predetermined device of a fire hydrant device functioning as a disaster prevention terminal device connected to a signal wiring drawn from a disaster prevention receiving board functioning as an upper device, for example. Further, as the predetermined device of the fire hydrant device functioning as a disaster prevention terminal device, it includes a transmitter equipped with a push switch as an operation switch, a pump starting device, a pump starting interlocking device, etc., and the wiring test unit tests the line state of the wiring for the push switch provided in these devices.

[0062] In addition, in the disaster prevention terminal device, any one of the first to fourth wiring connection parts to which the wiring test unit is connected includes any one of the first to fourth internal wirings connected to any one of the first to fourth wiring connection parts and the first connection point to which the wiring test unit is connected, and a second connection point to which a signal wiring drawn to the downstream side is connected. The wiring test unit may be provided between the first connection point and the second connection point and include a disconnect switch that disconnects the connection between the first connection point and the second connection point in conjunction with a predetermined test operation.

[0063] Here, the "signal wiring drawn to the downstream side" is a signal wiring drawn toward the termination resistor side from itself.

[0064] The "disconnect switch" is provided between the first connection point and the second connection point, and disconnects the connection between the first connection point and the second connection point in conjunction with a predetermined test operation by the wiring test unit. Therefore, when a predetermined test operation by the wiring test unit is performed, the disaster prevention terminal device located downstream of the disaster prevention terminal device in which it is provided and the termination resistor can be in a state of not being connected to the upper device (disconnected state).

[0065] Here, as the state monitoring of the signal line, the upper device determines the operation of the operation switch of the disaster prevention terminal device (receiving the transmission signal from the disaster prevention terminal device) by detecting a predetermined increase amount of the wiring current flowing through the signal line (or the current value of the increased wiring current). However, if there is no disconnect switch, during the test by the wiring test unit, in addition to the state monitoring current corresponding to the termination resistor, a wiring test current will flow through the signal line, so the wiring current flowing through the signal line will increase. Therefore, it is necessary to set the determination conditions so that the upper device can distinguish between the increase in the wiring current due to the wiring test current and the increase in the wiring current due to the operation of the operation switch of the disaster prevention terminal device.

[0066] On the contrary, by providing a disconnect switch, the termination resistor can be disconnected from the upper device during the wiring test by the wiring test unit. Due to the operation of the disconnect switch, only the wiring test current can flow through the signal line without the state monitoring current corresponding to the termination resistor flowing through it. It is possible to avoid an increase in the wiring current flowing through the signal line during the test by the wiring test unit, reduce the influence on the state monitoring of the signal line by the upper device, and enable the test by the wiring test unit of the disaster prevention terminal device.

[0067] In particular, by adjusting so that the state monitoring current and the wiring test current flowing through the signal line corresponding to the termination resistor have the same current value, no change will occur in the wiring current flowing through the signal line even when the test by the wiring test unit is performed, and it is possible to eliminate the influence of the test by the wiring test unit on the state monitoring of the signal line by the upper device.

[0068] The following describes specific embodiments. In the specific embodiments shown below, the "operation switch" is a "normally open push switch (a contact switch)", the "wiring connection part" is a "terminal block provided in the disaster prevention terminal device", the "wiring connection point" is a "terminal provided in the terminal block", the "wiring test operation part" is a "wiring test switch (push switch)", the "display test part" is a "lighting test part that tests the lighting of the LED provided in the current display part", and the "display test operation part" is a "lighting test switch (push switch)". The description will be given for this case. Also, the "embodiment in which the wiring test part includes a wiring test switch, a wiring monitoring resistor, and a current display part" is the first embodiment, the "embodiment in which the wiring test part includes a wiring test switch, a wiring monitoring resistor, a current display part, and a disconnection switch" is the second embodiment, and the "embodiment in which the wiring test part is provided in an external device" is the third embodiment, which will be separately described.

[0069] [Specific content of the embodiment] Embodiments of the disaster prevention terminal device and the disaster prevention system will be described in more detail. The content will be described separately as follows. a. Outline of the disaster prevention system with multiple disaster prevention terminal devices b. First embodiment of the disaster prevention terminal device and the disaster prevention system b1. Configuration of the disaster prevention terminal device and the disaster prevention system b2. Wiring test part b3. First configuration of the disaster prevention terminal device and the disaster prevention system with operation switches connected in parallel b4. Second configuration of the disaster prevention terminal device and the disaster prevention system with operation switches connected in parallel c. Emergency equipment c1. Fire hydrant device c2. Opening of the electrical equipment door c3. Emergency equipment applied with the disaster prevention system d. Wiring test part with a lighting test function e. Second embodiment of the disaster prevention terminal device and the disaster prevention system e1. Configuration of the disaster prevention terminal device and the disaster prevention system e3. First configuration of the disaster prevention terminal device and the disaster prevention system with operation switches connected in parallel e3. Second configuration of the disaster prevention terminal device and the disaster prevention system with operation switches connected in parallel f. Third Embodiment of Disaster Prevention Terminal Device and Disaster Prevention System f1. Configuration of Disaster Prevention Terminal Device and Disaster Prevention System f2. First Configuration of Disaster Prevention Terminal Device and Disaster Prevention System with Operation Switches Connected in Parallel f3. Second Configuration of Disaster Prevention Terminal Device and Disaster Prevention System with Operation Switches Connected in Parallel f4. Emergency Equipment to Which Disaster Prevention System of Third Embodiment is Applied g. Modification Example of the Present Invention

[0070] [a. Outline of Disaster Prevention System with Multiple Disaster Prevention Terminal Devices] First, the outline of a disaster prevention system provided with a plurality of disaster prevention terminal devices will be described. In this description, refer to FIG. 1 showing the outline of the disaster prevention system.

[0071] As shown in FIG. 1, in the disaster prevention system, for example, three disaster prevention terminal devices 12(12-1), 12(12-2), and 12(12-3) are sequentially connected to a signal wiring 11 (signal cable) drawn from a host device 10. Here, the number of disaster prevention terminal devices provided in the disaster prevention system is arbitrary. Also, when it is not necessary to distinguish between the disaster prevention terminal devices 12(12-1) to 12(12-3), they are referred to as the disaster prevention terminal device 12.

[0072] In addition, the signal wiring 11 includes a signal wiring (signal cable) for high-voltage electricity for commercial AC power, a signal wiring (signal cable) for low-voltage electricity for a predetermined DC voltage power supply, etc. In the embodiment, a signal wiring for low-voltage electricity is connected to the operation switches provided in the disaster prevention terminal devices 12(12-1) to 12(12-3).

[0073] The disaster prevention terminal devices 12(12-1) to 12(12-3) are provided with at least one operation switch, and when the operation switch is operated, a disaster prevention detection signal (transmission signal) is transmitted to the host device 10 via the signal wiring for low-voltage electricity included in the signal wiring 11.

[0074] The host device 10 monitors the operation of the disaster prevention terminal device (operation of the operation switch) by receiving the disaster prevention detection signal based on the wiring current flowing through the signal wiring for low voltage.

[0075] In addition, since the signal wiring for low voltage drawn from the host device 10 is wired so as to return from the host device 10 to the host device 10 via the internal wiring for the operation switch provided in the disaster prevention terminal devices 12(12-1) to 12(12-3), the host device 10 substantially monitors the line state of the signal line including the signal wiring for low voltage and the internal wiring of the disaster prevention terminal devices 12(12-1) to 12(12-3) based on the wiring current.

[0076] In addition, the disaster prevention terminal devices 12(12-1) to 12(12-3) are provided with a wiring test unit for testing (confirming) the line state of the wiring path including the internal wiring connecting the operation switch and the signal wiring 11 on site.

[0077] Here, in the disaster prevention terminal devices 12(12-1) to 12(12-3), on the wiring connection, the disaster prevention terminal device on the host device 10 side as seen from itself is defined as the "upstream disaster prevention terminal device", and the disaster prevention terminal device on the opposite side of the host device 10 is defined as the "downstream disaster prevention terminal device". For example, in FIG. 1, as seen from the disaster prevention terminal device 12(12-2), the disaster prevention terminal device 12(12-1) is the "upstream disaster prevention terminal device", and the disaster prevention terminal device 12(12-3) is the "downstream disaster prevention terminal device".

[0078] In addition, on the wiring connection, the disaster prevention terminal device connected to the position closest to the host device 10 is defined as the "first-stage reporting device", and the disaster prevention terminal device connected to the farthest position is defined as the "last-stage reporting device". For example, in FIG. 1, the disaster prevention terminal device 12(12-1) is the "first-stage reporting device", and the disaster prevention terminal device 12(12-3) is the "last-stage reporting device". In addition, since three disaster prevention terminal devices are connected in the embodiment, the disaster prevention terminal device 12(12-1) is defined as the "first-stage disaster prevention terminal device", the disaster prevention terminal device 12(12-2) is defined as the "second-stage disaster prevention terminal device", and the disaster prevention terminal device 12(12-3) is defined as the "third-stage disaster prevention terminal device".

[0079] [b. First Embodiment of Disaster Prevention Terminal Device and Disaster Prevention System] Subsequently, a first embodiment of a disaster prevention terminal device and a disaster prevention system, in which a wiring test unit includes a wiring test switch, a wiring monitoring resistor, and a current display unit, will be described.

[0080] (b1. Configuration of Disaster Prevention Terminal Device and Disaster Prevention System) First, the configuration of the disaster prevention terminal device and the disaster prevention system in the first embodiment will be described when the disaster prevention terminal device includes one push switch as an operation switch. In this description, refer to FIG. 2 showing the first embodiment of the disaster prevention terminal device and the disaster prevention system.

[0081] As shown in FIG. 2, from the host device 10, as signal wirings for low-voltage electricity included in the signal wiring 11 of FIG. 1, a signal line 1110 (positive-side wiring) and a common line 1120 (negative-side wiring) are drawn out. After being drawn out from the host device 10, the signal line 1110 is sequentially connected to each of the first terminal 1610 and the second terminal 1612 of the terminal block 16 provided in the disaster prevention terminal devices 12(12-1) to 12(12-3) such that the first terminal 1610 is on the upstream side of the second terminal 1612, and is connected to one end of the termination resistor 28 from the second terminal 1612 of the terminal block 16 of the last-stage disaster prevention terminal device 12(12-3). The common line 1120 is sequentially connected to each of the third terminal 1620 and the fourth terminal 1622 of the terminal block 16 provided in the disaster prevention terminal devices 12(12-1) to 12(12-3) such that the third terminal 1620 is on the upstream side of the second terminal 1622, and is connected to the other end of the termination resistor 28 from the fourth terminal 1622 of the terminal block 16 of the last-stage disaster prevention terminal device 12(12-3).

[0082] The disaster prevention terminal devices 12(12-1) to 12(12-3) include a push switch 14 and a terminal block 16. The push switch 14 has a first switch terminal 1410 and a second switch 1420, and normally opens (turns off) the first switch terminal 1410 and the second switch terminal 1420 as shown in the figure, and closes (turns on) when a pressing operation (on operation) is performed, and transmits a disaster prevention detection signal to the host device 10.

[0083] The first switch terminal 1410 of the pressing switch 14 is connected to the first terminal 1610 of the terminal block 16 by the first internal wiring 1810 and is also connected to the second terminal 1612 of the terminal block 16 by the second internal wiring 1812.

[0084] The second switch terminal 1420 of the pressing switch 14 is connected to the third terminal 1620 of the terminal block 16 by the third internal wiring 1820 and is also connected to the fourth terminal 1622 of the terminal block 16 by the fourth internal wiring 1822.

[0085] The terminal block 16 has a plurality of terminals serving as wiring connection points, and four terminals, namely the first terminal 1610, the second terminal 1612, the third terminal 1620, and the fourth terminal 1622, are used. The first terminal 1610 and the third terminal 1620 are connected to the signal line 1110 or the common line 1120 from the upstream side, and the second terminal 1612 and the fourth terminal 1622 are connected to the signal line 1110 or the common line 1120 to the downstream side.

[0086] Therefore, the signal line 1110 is connected to one end of the termination resistor 28 via the first internal wiring 1810 and the second internal wiring 1812 of the disaster prevention terminal devices 12(12-1) to 12(12-3), and the common line 1120 is connected to the other end of the termination resistor 28 via the third internal wiring 1820 and the fourth internal wiring 1822 of the disaster prevention terminal devices 12(12-1) to 12(12-3). As a result, a signal loop is formed in which the signal line 1110 and the first to fourth internal wirings 1810, 1812, 1820, 1822 are connected together. When collectively referring to the first to fourth internal wirings 1810, 1812, 1820, 1822, it is referred to as the internal wiring 18.

[0087] The host device 10 applies a predetermined state monitoring voltage, for example, DC48V, between the signal line 1110 and the common line 1120 to monitor the state of the signal line. By switching and connecting the wiring monitoring unit 1010 provided in the host device 10 to the signal line 1110 and the common line 1120 at a predetermined cycle, the state monitoring current flowing between the signal line 1110 and the common line 1120 is detected. When the detected state monitoring current exceeds a predetermined condition, for example, a predetermined threshold value, it is determined to be normal. When the detected state monitoring current is below a predetermined condition, for example, a predetermined threshold value at which the state monitoring current is considered to be interrupted, it is determined to be a disconnection, and a disconnection failure alarm is output.

[0088] (b2. Wiring test unit) Next, the wiring test unit provided in the disaster prevention terminal device will be described. Each of the disaster prevention terminal devices 12(12-1) to 12(12-3) is provided with a wiring test unit 20 for testing the line state of the wiring path including the internal wiring 18.

[0089] The wiring test unit 20 is connected between the second terminal 1612 and the fourth terminal 1622 of the terminal block 16, and includes a wiring test switch 22, a wiring test resistor 24, and a current display unit 26. Specifically, a wiring test switch 22, a wiring test resistor 24, and a current display unit 26 are connected in series between the second terminal 1612 and the fourth terminal 1622 of the terminal block 16.

[0090] The wiring test switch 22 is, for example, open as shown in the figure during normal times and closes when a pressing operation (on operation, test operation) is performed. It is a pressing switch.

[0091] The wiring test resistor 24 is a resistor for setting the wiring test current flowing through the internal wiring. Its resistance value is arbitrary. For example, a resistor with the same resistance value as the termination resistor 28 provided at the ends of the signal line 1110 and the common line 1120 is used.

[0092] The current display unit 26 operates based on the wiring test current flowing through the wiring path including the internal wiring 18 corresponding to the wiring test resistor 24 when the wiring test switch 22 is pressed, and displays the state of the wiring test current. As an example, it is provided with a light-emitting unit using a light-emitting element that is driven to emit light by the wiring test current, and an LED is used as the light-emitting element.

[0093] For example, when the wiring test switch 22 of the wiring test unit 20 of the disaster prevention terminal device 12(12-1) is pressed, a wiring test current flows through the wiring path from the plus terminal of the upper device 10, via the signal line 1110, the first internal wiring 1810, the second internal wiring 1812, the wiring test switch 22, the wiring test resistor 24, the current display unit 26, the fourth internal wiring 1822, the third internal wiring 1820, and the common signal line 1120, to the minus terminal of the upper device 10.

[0094] If the line states of the signal line 1110, the common line 1120, and the internal wiring 18 that form the wiring path are normal, the wiring test current flows. Therefore, the LED of the current display unit 26 lights up to notify that the line state is normal. If any of the signal line 1110, the common line 1120, and the internal wiring 18 is disconnected, the wiring test current does not flow. Therefore, the LED of the current display unit 26 does not light up to notify that the line state is disconnected. Although the above description is for the disaster prevention terminal device 12(12-1), the situation is basically the same when the wiring test switch 22 of the wiring test unit 20 of the disaster prevention terminal devices 12(12-2) and 12(12-3) is pressed.

[0095] Therefore, for example, when the wiring monitoring unit 1010 of the upper device 10 determines a disconnection in the signal line, an operator or the like goes to the installation site of the disaster prevention terminal devices 12(12-1) to 12(12-3), and presses the wiring test switch 22 of the wiring test unit 20 in order from the first-stage disaster prevention terminal device 12(12-1) to the third-stage disaster prevention terminal device 12(12-3), and checks the lighting state of the LED of the current display unit 26. If there is a disaster prevention terminal device where the lighting of the LED of the current display unit 26 is not confirmed, it can be specified (found) that a disconnection has occurred in the wiring of that disaster prevention terminal device, and it is possible to quickly take necessary measures such as performing replacement repair on the wiring of the specified disaster prevention terminal device where the disconnection has occurred. Here, the "wiring of the specified disaster prevention terminal device where the disconnection has occurred" includes, in addition to the internal wiring 18 of that disaster prevention terminal device, the upstream side connected to that disaster prevention terminal device, that is, the signal wiring 1110 connected to the first terminal 1610 and the common line 1120 connected to the third terminal 1620.

[0096] Also, after identifying the disaster prevention terminal device where the disconnection has occurred, the method of identifying where the disconnection point is in the signal line 1110, the common line 1120, and the internal wiring 18 is arbitrary. For example, there is a method of identifying the disconnection point by checking the line voltage between any one of the first terminal 1610 or the second terminal 1612 and any one of the third terminal 1620 or the fourth terminal 1622 with a tester.

[0097] For example, first, place the positive terminal bar of the tester on the first terminal 1610 and the negative terminal bar on the third terminal 1620. If the state monitoring voltage (for example, DC48V) applied by the upper device 10 between the signal line 1110 and the common line 1120 is displayed on the tester, it can be known that the signal line 1110 and the common line 1120 are normal. On the other hand, if it is displayed as 0V on the tester, the disconnection point can be specified as the signal line 1110 connected to the first terminal 1610 or the common line 1120 connected to the third terminal 1620.

[0098] When the signal line 1110 and the common line 1120 are normal, subsequently, with the minus terminal bar of the tester applied to the third terminal 1620 and the plus terminal bar applied to the second terminal 1612, if the state monitoring voltage is displayed on the tester, the disconnection point can be identified as the third internal wiring 1820 or the fourth internal wiring 1822. On the other hand, if it is displayed as 0V on the tester, the disconnection point can be identified as the first internal wiring 1810 or the second internal wiring 1812.

[0099] In addition, the resistance values between the first terminal 1610 and the first switch terminal 1410, the second terminal 1620 and the second switch terminal 1410, the third terminal 1630 and the second switch terminal 1420, and the fourth terminal 1640 and the second switch terminal 1420 are measured by the tester. If there is a pair of terminals with an infinite resistance value (= OPEN state), the disconnection point can be identified as the first internal wiring 1810 to the fourth internal wiring 1822 connected between those terminals. If the resistance value does not become infinite between any terminals, the disconnection point can also be identified as the signal line 1110 connected to the first terminal 1610 or the common line 1120 connected to the third terminal 1620.

[0100] Here, for example, if the state monitoring voltage applied by the upper device 10 between the signal line 1110 and the common line 1120 is DC48V and the resistance value of the wiring test resistor 24 is 9.6 kΩ, a 5 mA wiring test current flows when the wiring test switch 22 of any wiring test unit 20 of the disaster prevention terminal device 12 is pressed.

[0101] Also, for example, if the resistance value of the termination resistor 28 is the same as that of the wiring test resistor 24, which is 9.6 kΩ, a 5 mA state monitoring current, the same as the wiring test current, flows between the plus terminal and the minus terminal of the upper device 10 during normal operation. When the wiring test switch 22 of any wiring test unit 20 of the disaster prevention terminal device 12 is pressed, a 10 mA wiring current, which is the sum of the wiring test current and the state monitoring current, flows between the plus terminal and the minus terminal of the upper device 10.

[0102] Therefore, in order to transmit a disaster prevention detection signal when any one of the pressing switches 14 of the disaster prevention terminal device 12 is pressed, the disaster prevention detection current (transmission current) flowing is set to a value sufficiently larger than the wiring current obtained by combining the wiring test current and the status monitoring current. For example, if the wiring current obtained by combining the wiring test current and the status monitoring current is 10 mA, it is set to about 20 mA. This makes it possible to distinguish the wiring current flowing between the plus terminal and the minus terminal of the host device 10 when the wiring test switch 22 is pressed from the disaster prevention detection current flowing between the plus terminal and the minus terminal of the host device 10 when the pressing switch 14 is pressed, and ensures that the host device 10 does not erroneously detect the wiring current (wiring test current + status monitoring current) flowing between the plus terminal and the minus terminal of the host device 10 during the test by the wiring test unit 20 as the disaster prevention detection current.

[0103] Also, as an example of the case where the test is performed by the wiring test unit 20, the case where the wiring monitoring unit 1010 of the host device 10 determines a disconnection of the signal line is taken as an example. However, the test can be performed by the wiring test unit 20 at an arbitrary timing, such as when the wiring monitoring unit 1010 of the host device 10 determines a line abnormality other than a disconnection or during a regular inspection of the disaster prevention terminal device 12.

[0104] (b3. First configuration of a disaster prevention terminal device and a disaster prevention system with operation switches connected in parallel) Next, regarding the first configuration of the disaster prevention terminal device and the disaster prevention system with operation switches connected in parallel in the first embodiment, the case where the disaster prevention terminal device has two pressing switches connected in parallel as operation switches will be described. In this description, refer to FIG. 3 showing the first configuration of the disaster prevention terminal device and the disaster prevention system with two pressing switches connected in parallel in the first embodiment.

[0105] As shown in FIG. 3, the disaster prevention terminal devices 12(12 - 1) to 12(12 - 3) of the present embodiment include two pressing switches 14 and 15 as operation switches, and the pressing switches 14 and 15 are connected in parallel.

[0106] The pressing switch 14 connects the first switch terminal 1410 to the first terminal 1610 of the terminal block 16 via the first internal wiring 1810 and to the second terminal 1612 of the terminal block 16 via the second internal wiring 1812, and connects the second switch terminal 1420 to the third terminal 1620 of the terminal block 16 via the third internal wiring 1820 and to the fourth terminal 1622 of the terminal block 16 via the fourth internal wiring 1822. This is the same as the first embodiment shown in FIG. 2 in this regard.

[0107] And the first switch terminal 1410 of the pressing switch 14 is connected to the first switch terminal 1510 of the pressing switch 15 via the first parallel internal wiring 1710, and the second switch terminal 1420 of the pressing switch 14 is connected to the second switch terminal 1520 of the pressing switch 15 via the second parallel internal wiring 1720. The pressing switches 14 and 15 are connected in parallel by the parallel internal wiring, which is different from the first embodiment shown in FIG. 2 in this regard. Incidentally, when collectively referring to the first parallel internal wiring 1710 and the first parallel internal wiring 1720, it is referred to as the parallel internal wiring 17.

[0108] The wiring test unit 20 is connected between the second terminal 1612 and the fourth terminal 1622 of the terminal block 16, and has the same configuration as that of the first embodiment shown in FIG. 2. Therefore, the same reference numerals are given, and the description of the wiring test unit 20 is omitted.

[0109] (b4. Second Configuration of Disaster Prevention Terminal Device and Disaster Prevention System with Operation Switches Connected in Parallel) Next, regarding the second configuration of the disaster prevention terminal device and the disaster prevention system in which the operation switches in the first embodiment are connected in parallel, a case where the disaster prevention terminal device has two pressing switches connected in parallel as operation switches will be described. In this description, refer to FIG. 4 showing the second configuration of the disaster prevention terminal device and the disaster prevention system in which two pressing switches in the first embodiment are connected in parallel.

[0110] In the above-described first configuration, the wiring test unit 20 does not include the first parallel internal wiring 1710 and the second parallel internal wiring 1720 in the wiring that can test the line state. Even if a line abnormality including a disconnection occurs in the first parallel internal wiring 1710 and the second parallel internal wiring 1720, the abnormality cannot be detected. Therefore, in the second configuration, the wiring test unit 20 is configured to be able to test the line state of the wiring including the first parallel internal wiring 1710 and the second parallel internal wiring 1720.

[0111] As shown in FIG. 4, the disaster prevention terminal devices 12(12-1) to 12(12-3) of the present embodiment include two push switches 14 and 15 as operation switches. The first switch terminal 1410 of the push switch 14 is connected to the first switch terminal 1510 of the push switch 15 by the first parallel internal wiring 1710, and the second switch terminal 1420 of the push switch 14 is connected to the second switch terminal 1520 of the push switch 15 by the second parallel internal wiring 1720, whereby the push switches 14 and 15 are connected in parallel. This is the same as the first configuration shown in FIG. 3 in this regard.

[0112] Then, the first switch terminal 1410 of the push switch 14 is connected to the first terminal 1610 of the terminal block 16 by the first internal wiring 1810, and the first switch terminal 1510 of the push switch 15 is connected to the second terminal 1612 of the terminal block 16 by the second internal wiring 1812, whereby the line state of the first parallel internal wiring 1710 can be tested. This is different from the first configuration shown in FIG. 3 in this regard.

[0113] Also, the second switch terminal 1420 of the push switch 14 is connected to the third terminal 1620 of the terminal block 16 by the third internal wiring 1820, and the second switch terminal 1520 of the push switch 15 is connected to the fourth terminal 1622 of the terminal block 16 by the fourth internal wiring 1822, whereby the line state of the second parallel internal wiring 1720 can be tested. This is different from the first configuration shown in FIG. 3 in this regard.

[0114] The wiring test unit 20 has the same configuration as that of the first embodiment shown in FIG. 2, and is connected between the second terminal 1612 of the terminal block 16 and the fourth terminal 1622 of the terminal block 16.

[0115] Therefore, for example, when the wiring test switch 22 of the wiring test unit 20 of the disaster prevention terminal device 12(12-1) is pressed, a wiring test current flows through the wiring path from the plus terminal of the host device 10, through the signal line 1110, the first internal wiring 1810, the first parallel internal wiring 1710, the second internal wiring 1812, the wiring test switch 22, the wiring test resistor 24, the current display unit 26, the fourth internal wiring 1822, the second parallel internal wiring 1720, the third internal wiring 1820, and the common signal line 1120 to the minus terminal of the host device 10.

[0116] If the line states of the signal line 1110, the common line 1120, the internal wiring 18, and the parallel internal wiring 17 that form the wiring path are normal, the wiring test current flows, so the LED of the current display unit 26 lights up to notify that the line state is normal. If any of the line states of the signal line 1110, the common line 1120, the internal wiring 18, and the parallel internal wiring 17 is disconnected, the wiring test current does not flow, so the LED of the current display unit 26 does not light up to notify that the line state is disconnected. Although the above description is for the disaster prevention terminal device 12(12-1), the same applies when the wiring test switch 22 of the wiring test unit 20 of the disaster prevention terminal devices 12(12-2) and 12(12-3) is pressed.

[0117] Also, for example, when the wiring monitoring unit 1010 of the upper device 10 determines a disconnection in the signal line, an operator or the like goes to the installation site of the disaster prevention terminal devices 12(12-1) to 12(12-3), and presses the wiring test switch 22 of the wiring test unit 20 in order from the first-stage disaster prevention terminal device 12(12-1) to the third-stage disaster prevention terminal device 12(12-3), and checks the lighting state of the LED of the current display unit 26. If there is a disaster prevention terminal device where the lighting of the LED of the current display unit 26 is not confirmed, it can be specified (found) that a disconnection has occurred in the wiring of that disaster prevention terminal device, and necessary measures such as performing replacement repair on the wiring of the specified disaster prevention terminal device where the disconnection has occurred can be carried out promptly. Here, the "wiring of the specified disaster prevention terminal device where a disconnection has occurred" in the second configuration includes the internal wiring 18 of the disaster prevention terminal device, the signal wiring 1110 connected to the first terminal 1610, and the common line 1120 connected to the third terminal 1620, in addition to the parallel internal wiring 17.

[0118] In this way, by making it possible to test the line states of the parallel internal wiring 17 in which the push switches 14 and 15 are connected in parallel in addition to the signal line 1110, the common line 1120, and the internal wiring 18, even in a configuration where the operation switches are connected in parallel, all the internal wirings can be included in the test targets by the internal wiring test 20 and the monitoring targets by the wiring monitoring unit 1010 of the upper device 10, and it becomes possible to test and monitor the line states of the wirings of the disaster prevention terminal devices without omission.

[0119] [c. Emergency equipment] Subsequently, the emergency equipment such as tunnels to which the above-described disaster prevention system is applied will be described. The emergency equipment includes a fire hydrant device provided with an emergency notification device composed of a disaster prevention receiving panel to which the upper device is applied and a transmitter or the like to which the disaster prevention terminal device is applied. The case where a plurality of fire hydrant devices are installed at predetermined intervals will be described.

[0120] (c1. Fire hydrant device) First, the fire hydrant device will be described. In this description, refer to FIG. 5 showing the fire hydrant device from the front (front side), FIG. 6 showing a partial cross-section of the fire hydrant device viewed from the plane (top surface), and FIG. 7 showing the electrical equipment door and the fire extinguisher door from the back side. Note that the cross-section shown in FIG. 6 is the cross-section along the cutting line a-a in FIG. 5.

[0121] Here, in the description of FIGS. 5 to 7, the X - Y - Z directions are perpendicular to each other. Specifically, when looking at the front of the fire hydrant device provided with various doors as the front, the X direction is the left - right direction, the Y direction is the up - down direction, and the Z direction is the front - back direction. Also, the +X side in the X direction is the right side, the -X side is the left side, the +Y side in the Y direction is the upper side, the -Y side is the lower side, the +Z side in the Z direction is the front side, and the -Z side is the back side. This is the same in FIGS. 8, 11, 18, and 19.

[0122] As shown in FIG. 5, the fire hydrant device 30 has a structure divided into a housing 50a whose interior is a fire hydrant storage part and a housing 50b whose interior is a fire extinguisher storage part, and decorative frames 51a, 51b are attached to the front surfaces of the housings 50a, 50b.

[0123] The door opening of the decorative frame 51a of the housing 50a is divided vertically. A forward - tilting fire hydrant door 52 that opens downward by a hinge 52a is provided below the door opening, and a maintenance door 54 that opens upward by a hinge 54a is provided above the door opening. Inside the fire hydrant storage part, valves including a fire hose and a fire hydrant valve are stored.

[0124] On the left side of the door opening of the decorative frame 51b of the housing 50b, a fire extinguisher door 56 that opens horizontally to the left by a hinge 56a is provided. Inside the fire extinguisher storage part, for example, as shown in FIG. 6, two fire extinguishers 68 can be stored. Also, a viewing window 57 is provided below the fire extinguisher door 56 to enable confirmation of the presence or absence of the fire extinguisher 68 from the outside.

[0125] On the right side of the door opening of the electrical equipment frame 51b, an electrical equipment door 58 that opens horizontally to the right by a hinge 58a is provided. On the electrical equipment door 58, as components constituting an emergency reporting device, for example, a red indicator lamp 60, a transmitter 62, and a response lamp 64 are provided, and a telephone jack is provided inside the housing of the electrical equipment door 58.

[0126] The red indicator lamp 60 is always lit during normal times so that the installation location of the fire hydrant device 30 can be known from a distance. Also, when a pump start signal is transmitted from a pump start device 65 or a pump start interlocking device 66, which will be described later, to the disaster prevention receiving panel, the red indicator lamps 60 of all the fire hydrant devices 30 are controlled by the disaster prevention receiving panel to blink simultaneously.

[0127] The transmitter 62 is equipped with a normally open and lock-type pressure switch that is pressed during a fire. When the push button of the transmitter 62 is pressed, the switch contacts of the pressure switch are closed and a fire alarm signal (transmission signal) is transmitted to the disaster prevention receiving panel, causing the disaster prevention receiving panel to output a fire alarm. At the same time, for example, it causes the interlocking control of emergency facilities such as a display prohibiting entry into the tunnel on an alarm display board installed at the tunnel entrance. The transmitter 62 equipped with such a pressure switch is a location where the disaster prevention terminal device 12 shown in FIG. 2 described above can be applied.

[0128] The response lamp 64 lights up by a response signal transmitted from the disaster prevention receiving panel when the disaster prevention receiving panel receives a fire alarm signal. Also, the response lamp 64 is connected to the disaster prevention receiving panel via a linked pressure switch for response lighting that is linked to the pressure switch of the transmitter 62, and is designed to light up on the condition that the linked pressure switch for response lighting linked to the closing of the pressure switch of the transmitter 62 is closed.

[0129] On the right side of the fire hydrant storage section within the housing 50a is a valve storage section. A fire hose is connected to the water supply pipe drawn in from the outside via a water supply faucet, a fire hydrant valve, and an automatic pressure regulating valve. The fire hydrant valve is opened and closed by a fire hydrant valve opening / closing lever. When the fire hydrant valve opening / closing lever is opened, a normally open pressure switch of the pump start linkage device 66, for example, a limit switch that detects the lever open position, closes and transmits a pump start signal (transmission signal) to the disaster prevention receiving panel. The disaster prevention receiving panel controls the start of the fire pump facility and simultaneously controls the flashing of the red indicator lights 60 provided on all the fire hydrant devices 30 all at once.

[0130] Also, inside the opened maintenance door 54, a pump start device 65 used by the fire brigade is provided. When the pump start device 65 is operated, similar to the pump start linkage device 66, a normally open pressure switch closes and transmits a pump start signal (transmission signal) to the disaster prevention receiving panel. The disaster prevention receiving panel controls the start of the fire pump facility and simultaneously controls the flashing of the red indicator lights 30 provided on all the fire hydrant devices 60 all at once.

[0131] The pressure switch of the pump start device 65 and the pressure switch of the pump start linkage device 66 are connected in parallel. The disaster prevention receiving panel is configured to control the start of the fire pump facility and the like when it receives a pump start signal from either one of the devices. The pump start device 65 and the pump start linkage device 66 equipped with such pressure switches are locations where the disaster prevention terminal device 12 shown in FIG. 3 or FIG. 4 can be applied.

[0132] As shown in FIGS. 5 and 6, terminal boxes 70a and 70b equipped with terminal blocks are arranged on the inner back surface of the housing 50b behind the fire extinguisher door 56. The terminal block of the terminal box 70a is connected to the signal wiring (signal cable) for high-voltage electricity from the disaster prevention receiving panel and also to the internal wiring for the red indicator light 60.

[0133] In addition, a low-voltage signal wiring (signal cable) from the disaster prevention receiving panel is connected to the terminal block of the terminal box 70b, and internal wiring for the transmitter 62, response lamp 64, telephone jack, pump starting device 65, and pump start interlocking device 66 is also connected.

[0134] Also, as a wiring test unit provided in the disaster prevention terminal device, for example, as shown in FIG. 7, a wiring test unit 2010 that tests the wiring for the push switch of the transmitter 62 and a wiring test unit 2020 that tests the wiring for the push switches of the pump starting device 65 and the pump start interlocking device 66 connected in parallel are arranged on the back side of the electrical equipment door 58. Wiring test switches 22 are operably provided on the wiring test units 2010 and 2020, and a current display unit 26 is provided so as to be viewable. Incidentally, although not shown, the wiring test units 2010 and 2020 also include wiring test resistors as shown in FIGS. 2 to 4.

[0135] Also, on the back side of the electrical equipment door 58, a red indicator lamp 60, a transmitter 62, a telephone jack 67, and a response lamp 64 are attached in order from above by a mounting plate 63, and the wiring test units 2010 and 2020 are attached below the response lamp 64.

[0136] (c2. Opening of the electrical equipment door) Next, the opening of the electrical equipment door will be described. For this description, reference is made to FIG. 8 showing the electrical equipment door in the open state from the left side. In FIG. 8, the fire extinguisher door is omitted.

[0137] The electrical equipment door 58 arranged on the right side of the housing 50b can be opened as shown by the imaginary line in FIG. 6 with the fire extinguisher door 56 open. By opening the electrical equipment door 58, it is possible to perform inspections such as pressing the push switch of the transmitter 62 and tests by the wiring test units 2010 and 2020.

[0138] Here, the electrical equipment door 58 functions as a receiving part for temporarily fixing the fire extinguisher door 56. To function as the receiving part of the fire extinguisher door 56, as shown in Fig. 7, mounting pieces 59 with screw holes are provided at two positions, upper and lower, of the electrical equipment door 58. By screwing a knurled screw or a wing screw passed through the through holes of the fixing pieces (receiving parts) provided on the housing 50b side relative to the mounting pieces 59 into the mounting pieces 59, usually, the electrical equipment door 58 is temporarily fixed in the closed position at the door opening.

[0139] And a magnet 5612 is provided at the center of the door frame of the electrical equipment door 58. By the magnetic attraction plate provided on the back surface of the door frame of the fire extinguisher door 56 (on the side of the door frame of the electrical equipment door 58) being attracted and fixed to the magnet 5612, the fire extinguisher door 56 is held (temporarily fixed) in the closed position.

[0140] Also, the door handle 5610 of the fire extinguisher door 56 is provided approximately at the center on the side of the electrical equipment door 58 (right side). By putting a hand into the door handle 5610 and pulling it forward, the magnetic attraction by the magnet 5612 is released, and the fire extinguisher door 56 can be opened around the hinge 56a. The fire extinguisher door 56 is opened when necessary, such as when using the fire extinguisher stored inside the housing 50b.

[0141] On the other hand, when it is necessary to open the electrical equipment door 58, such as for replacing and repairing electrical equipment such as the transmitter 62 provided on the electrical equipment door 58 or for testing by the wiring test units 2010 and 2020, after opening the fire extinguisher door 56, the temporary fixing of the electrical equipment door 58 by knurled screws, wing screws, etc. to the mounting pieces 59 is released, and the electrical equipment door 58 can be opened around the hinge 58a.

[0142] For example, when performing regular inspections on the fire hydrant device 30 or determining a line abnormality such as a disconnection of the signal line on the disaster prevention receiving panel, as shown in FIG. 8, open the electrical equipment door 58, and press the wiring test switch 2210 of the wiring test unit 2010 arranged on the back side of the electrical equipment door 58 to check whether a wiring test current flows through the wiring path including the internal wiring to the push switch of the transmitter 62 according to the state of the LED of the current display unit 26, and check the line state of the wiring to the push switch of the transmitter 62. Similarly, by pressing the wiring test switch 2220 of the wiring test unit 2020, check the line state of the wiring to the push switches of the pump starting device 65 and the pump starting interlocking device 66. When a line abnormality such as a disconnection is confirmed, perform repair measures such as replacing the wiring. Also, when performing replacement and repair of electrical equipment, for example, the electrical equipment door 58 is opened so that the back side of the electrical equipment door 58 is exposed to the front side.

[0143] (c3. Emergency equipment to which the disaster prevention system is applied) Next, the emergency equipment to which the disaster prevention system is applied will be described. In this description, refer to FIG. 9 showing the emergency equipment to which the first embodiment of the disaster prevention system shown in FIGS. 2 and 3 is applied.

[0144] As shown in FIG. 9, the emergency equipment includes a disaster prevention receiving panel 100 to which a host device is applied and a plurality of fire hydrant devices 30(30 - 1) to 30(30 - 3) to which disaster prevention terminal devices are applied. Note that the number of fire hydrant devices is arbitrary, and in the emergency equipment shown in FIG. 9, the number is the same as the number of disaster prevention terminal devices shown in FIGS. 2 and 3, which is three. Also, when there is no need to distinguish between the fire hydrant devices 30(30 - 1) to 30(30 - 3), they are referred to as the fire hydrant device 30.

[0145] From the disaster prevention receiving panel 100, a transmitter signal line 1112, a response signal line 1114, and a pump start signal line 116 are drawn out as signal lines, and a common common line 1120 is drawn out as a common line.

[0146] After the transmitter signal line 1112 is drawn out from the disaster prevention receiver panel 100, it is sequentially connected to each of the first terminal 1610 and the second terminal 1612 of the terminal block 16 of the fire hydrant devices 30(30-1) to 30(30-3) such that the first terminal 1610 is on the upstream side of the second terminal 1612, and is connected to one end of the termination resistor 2810 from the second terminal 1612 of the terminal block 16 of the last-stage fire hydrant device 30(30-3).

[0147] Also, after the response signal line 1114 is drawn out from the disaster prevention receiver panel 100, it is sequentially connected to the ninth terminal 1618 of the terminal block 16 of the fire hydrant devices 30(30-1) to 30(30-3).

[0148] Also, after the pump start signal line 1116 is drawn out from the disaster prevention receiver panel 100, it is sequentially connected to each of the fifth terminal 1614 and the sixth terminal 1616 of the terminal block 16 of the fire hydrant devices 30(30-1) to 30(30-3) such that the fifth terminal 1614 is on the upstream side of the sixth terminal 1616, and is connected to one end of the termination resistor 2820 from the sixth terminal 1616 of the terminal block 16 of the last-stage fire hydrant device 30(30-3).

[0149] Furthermore, after the common line 1120 is drawn out from the disaster prevention receiver panel 100, it is sequentially connected to each of the tenth terminal 1628, the third terminal 1620, the fourth terminal 1622, the seventh terminal 1624, and the eighth terminal 1626 of the terminal block 16 of the fire hydrant devices 30(30-1) to 30(30-3), and is connected to the other ends of the termination resistors 2810 and 2820 from the eighth terminal 1626 of the terminal block 16 of the last-stage fire hydrant device 30(30-3).

[0150] In the fire hydrant device 30, the first internal wiring 1810 connects between the first terminal 1610 of the terminal block 16 and the first switch terminal 3210 of the transmitter pressing switch 32 of the transmitter 62, and the second internal wiring 1812 connects between the second terminal 1612 of the terminal block 16 and the first switch terminal 3210 of the transmitter pressing switch 32 of the transmitter 62. Also, the third internal wiring 1820 connects between the third terminal 1620 of the terminal block 16 and the second switch terminal 3220 of the transmitter pressing switch 32, and the fourth internal wiring 1822 connects between the fourth terminal 1622 of the terminal block 16 and the second switch terminal 3220 of the transmitter pressing switch 32.

[0151] When a road user presses the transmitter 62 due to a fire, the transmitter pressing switch 32 closes (turns on), and a fire alarm current (transmission current) flows between the transmitter signal line 1112 and the common line 1120, thereby transmitting a fire alarm signal to the disaster prevention receiving panel 100, outputting a fire alarm, and performing interlock control.

[0152] Also, a wiring test unit 2010 is connected between the second terminal 1612 and the fourth terminal 1622 of the terminal block 16. Although not shown, the wiring test unit 2010 has a wiring test switch 22, a wiring test resistor 24, and a current display unit 26 connected in series like the wiring test unit 20 shown in FIG. 2.

[0153] Also, a transmitter interlock pressing switch 34 (interlock pressing switch for response lighting) is provided for the transmitter pressing switch 32 of the transmitter 62, and a response lamp 64 is connected between the ninth terminal 1618 and the tenth terminal 1628 of the terminal block 16 via the transmitter interlock pressing switch 34.

[0154] Upon receiving a fire alarm signal due to the closing (turning on) of the transmitter push switch 32 accompanying the pressing operation of the transmitter 62, the disaster prevention receiver 100 supplies DC48V as a response control voltage between the response signal line 1114 and the common line 1120. For example, when the fire hydrant device where the transmitter 62 is pressed is the fire hydrant device 30 (30-1), since the transmitter interlock push switch 34 is closed (turned on) in the fire hydrant device 30 (30-1), the response lamp 64 lights up due to the supply of the response control voltage. However, in the fire hydrant devices 30 (30-2) and 30 (30-3), since the transmitter 62 has not been operated, the transmitter interlock push switch 34 is open (turned off), and the response lamp 64 does not light up.

[0155] Also, the fifth terminal 1614 of the terminal block 16 is connected to the first switch terminal 3810 of the pump start push switch 38 of the pump start device 65 by the fifth internal wiring 1814, and the sixth terminal 1616 of the terminal block 16 is connected to the first switch terminal 3810 of the pump start push switch 38 of the pump start device 65 by the sixth internal wiring 1816. Also, the seventh terminal 1624 of the terminal block 16 is connected to the second switch terminal 3820 of the pump start push switch 38 of the pump start device 65 by the seventh internal wiring 1824, and the eighth terminal 1626 of the terminal block 16 is connected to the first switch terminal 3810 of the pump start push switch 38 of the pump start device 65 by the eighth internal wiring 1826.

[0156] Also, the pump start interlock push switch 40 of the pump start interlock device 66 is connected in parallel to the pump start push switch 38 of the pump start device 65. That is, the first switch terminal 3810 of the pump start push switch 38 is connected to the first switch terminal 4010 of the pump start interlock push switch 40 by the first parallel internal wiring 1710, and the second switch terminal 3820 of the pump start push switch 38 is connected to the second switch terminal 4020 of the pump start interlock push switch 40 by the second parallel internal wiring 1720.

[0157] When a road user performs an opening operation on the fire hydrant valve due to a fire or the like, the pump start linkage pressure switch 40 of the pump start linkage device 66 closes (turns on), and a pump start current (transmission current) flows between the pump start signal line 1114 and the common line 1120 to transmit a pump start signal to the disaster prevention receiving panel 100, thereby controlling the start of the fire pump facility and the like.

[0158] Also, when the fire department performs a pressing operation on the pump start device 65, the pump start pressure switch 38 closes (turns on), and similarly, a pump start current (transmission current) flows between the pump start signal line 1114 and the common line 1120 to transmit a pump start signal to the disaster prevention receiving panel 100, thereby controlling the start of the fire pump facility and the like.

[0159] Also, a wiring test unit 2020 is connected between the sixth terminal 1616 and the eighth terminal 1626 of the terminal block 16. Although not shown, the wiring test unit 2020 has a wiring test switch 22, a wiring test resistor 24, and a current display unit 26 connected in series, similar to the wiring test unit 20 shown in FIG. 3.

[0160] Also, for example, when the wiring monitoring unit 1010 of the disaster prevention receiving panel 100 determines a disconnection or the like of the signal line and outputs a disconnection failure alarm, or during a regular inspection of the fire hydrant device 30, etc., an operator or the like goes to the installation site of the fire hydrant device 30 and presses the wiring test switch 22 of the wiring test units 2010 and 2020 in sequence from the first-stage fire hydrant device 30 (30-1) to the third-stage fire hydrant device 30 (30-3), and checks the lighting state of the LED of the current display unit 26. If there is a fire hydrant device for which the lighting of the LED of the current display unit 26 is not confirmed, it can be identified (discovered) that a disconnection has occurred in the wiring of that fire hydrant device, and repair measures such as replacement and repair are taken for the fire hydrant device for which the disconnection has been identified.

[0161] Also, when the wiring test switch 22 of the wiring test unit 2010 is pressed, a test is performed on the wiring to the transmitter push switch 32 of the transmitter 62. When the wiring test switch 22 of the wiring test unit 2020 is pressed, a test is performed on the wiring to the pump start push switch 38 of the pump start device 65 and the pump start interlock push switch 40 of the pump start interlock device 66.

[0162] Also, in the disaster prevention system shown in FIG. 9, the first configuration shown in FIG. 3 is applied to the pump start device 65 and the pump start interlock device 66 connected in parallel, but the second configuration shown in FIG. 4 may be applied.

[0163] [d. Wiring Test Unit with Lighting Test Function] Next, a wiring test unit with a lighting test function will be described. In this description, reference is made to FIG. 10 showing a disaster prevention system in which a lighting test function is provided in the wiring test unit of the disaster prevention system shown in FIG. 2, and FIG. 11 showing the open electrical equipment door of the fire hydrant device provided with the wiring test unit having the lighting test function from the left side.

[0164] In the wiring test unit 20 of the disaster prevention terminal device 12 of the present embodiment, a wiring test switch 22, an LED of the current display unit 26, and a wiring test resistor 24 are connected in series between the second terminal 1612 and the fourth terminal 1622 of the terminal block 16. Compared with the wiring test unit 20 in FIG. 2, the order of connecting the wiring test resistor 24 and the current display unit 26 is reversed, but there is no difference in the wiring test function.

[0165] And the wiring test unit 20 is provided with a lighting test switch 25 which is a non-locking push button switch having two normally open switch contacts 25a and 25b for performing a lighting test of the LED of the current display unit 26, which is different from the first embodiment shown in FIG. 2 in this regard.

[0166] One of the switch contacts 25a of the lighting test switch 25 is connected to the first terminal 1610 of the terminal block 16 via a lighting test resistor 27, and the other of the switch contacts 25a is connected between the wiring test switch 22 and the current display unit 26, that is, to the anode side of the LED.

[0167] Also, one of the switch contacts 25b of the lighting test switch 25 is connected between the current display unit 26 and the wiring test resistor 24, that is, to the cathode side of the LED, and the other of the switch contacts 25b is connected to the third terminal 1620 of the terminal block 16.

[0168] The lighting test switch 25 enables confirmation of whether the LED of the current display unit 26 lights up normally by being pressed before testing the line state of the wiring path including the internal wiring 18.

[0169] When the lighting test switch 25 is pressed, the switch contacts 25a and 25b are closed (turned on), the current display unit 26 is connected between the signal line 1110 and the common line 1120, a lighting test current corresponding to the resistance value of the lighting test resistor 27 flows through the current display unit 26, and it can be confirmed whether the LED of the current display unit 26 lights up normally. Also, when the lighting test switch 25 is pressed, the lighting test current flows through the current display unit 26 without passing through the internal wiring 18, so the state of the current display unit 26 can be confirmed without depending on the line state of the internal wiring.

[0170] If there is no line abnormality in the signal line 1110 and the common line 1120 and the LED of the current display unit 26 does not light up, it is determined that the current display unit 26 is faulty, and repair measures such as replacing the LED are taken. If the LED of the current display unit 26 lights up, it is determined that the current display unit 26 is normal. After that, the wiring test switch 22 is pressed to test the line state of the wiring path including the internal wiring 18, and the line state of the wiring path including the internal wiring 18 is confirmed from the state of the LED of the current display unit 26.

[0171] In this way, after confirming the lighting of the LED of the current display unit 26, by pressing the wiring test switch 22 to conduct a test, it is possible to prevent the malfunction of the LED of the current detection unit 26 from being misjudged as a line abnormality in advance.

[0172] In addition, the configuration in which the wiring test unit 20 is provided with a lighting test function for the LED of the current display unit 26 is also similarly applicable to the wiring test unit 20 of the first embodiment in which the operation switches shown in FIGS. 3 and 4 are connected in parallel, and the wiring test units 2010 and 2020 provided in the fire hydrant device of the emergency equipment to which the disaster prevention system shown in FIG. 9 is applied.

[0173] FIG. 11 shows a fire hydrant device 30 in which the wiring test units 2010 and 2020 provided in the fire hydrant device of the emergency equipment shown in FIG. 9 are applied with the wiring test unit 20 having the inspection test function shown in FIG. 10, as viewed from the left side with the electrical equipment door 58 provided with the wiring test units 2010 and 2020 in an open state.

[0174] On the back side of the electrical equipment door 58, similar to the fire hydrant device 30 shown in FIG. 8, a red indicator light 60, a transmitter 62, a telephone jack 67, and a response lamp 64 are arranged in order from the top, and the wiring test units 2010 and 2020 are arranged below them. In the wiring test units 2010 and 2020, in addition to the wiring test switch 22 and the current display unit 26, a lighting test switch 25 is operably arranged.

[0175] [e. Second Embodiment of Disaster Prevention Terminal Device and Disaster Prevention System] Subsequently, a second embodiment of a disaster prevention terminal device and a disaster prevention system, which is an embodiment in which the wiring test unit includes a wiring test switch, a wiring monitoring resistor, a current display unit, and a disconnect switch, will be described.

[0176] (e1. Configuration of Disaster Prevention Terminal Device and Disaster Prevention System) First, the configuration of the disaster prevention terminal device and the disaster prevention system in the second embodiment will be described in the case where the disaster prevention terminal device includes one push switch as an operation switch. For this description, refer to FIG. 12 showing the second embodiment of the disaster prevention terminal device and the disaster prevention system.

[0177] As shown in FIG. 12, in this embodiment, a disconnect switch 72 is added to the wiring test unit 20 of the first embodiment shown in FIG. 2. After the signal line 1110 is drawn out from the host device 10, it is connected to each of the first terminal 1610 and the fifth terminal 1614 of the terminal block 16 provided in the disaster prevention terminal devices 12(12-1) to 12(12-3) in sequence in the disaster prevention terminal devices 12(12-1) to 12(12-3) such that the first terminal 1610 is upstream of the fifth terminal 1614. Since the other configurations are the same as those in FIG. 2, the same reference numerals are given and the description is omitted.

[0178] The disconnect switch 72 is a normally closed and non-locking push switch, and is a switch that is opened (turned off) in conjunction with the closing (turning on) of the wiring test switch 22, and is connected between the second terminal 1612 and the fifth terminal 1614 of the terminal block 16.

[0179] When each disaster prevention terminal device 12 performs a test by the wiring test unit 20, as in the first embodiment, the wiring test switch 22 is pressed and the lighting state of the LED of the current display unit 26 is confirmed. However, in the second embodiment, the disconnect switch 72 is opened in conjunction with the closing of the wiring test switch 22 by the pressing operation of the wiring test switch 22.

[0180] For example, when the wiring test switch 22 is pressed in the first-stage disaster prevention terminal device 12(12-1), the disconnect switch 72 disconnects the signal line 1110 connected to the disaster prevention terminal devices 12(12-2) and 12(12-3) which are downstream of itself. That is, in the state where the disconnect switch 72 of the disaster prevention terminal device 12(12-1) is opened, only the disaster prevention terminal device 12(12-1) is connected between the plus terminal and the minus terminal of the host device 10, and the path through which current flows between the plus terminal and the minus terminal of the host device 10 is only the path passing through the closed wiring test switch 22, the wiring test resistor 24, and the current display unit 26 provided in the wiring test unit 20 of the disaster prevention terminal device 12(12-1).

[0181] Therefore, when the wiring test switch 22 of the disaster prevention terminal device 12(12-1) is pressed, a wiring test current corresponding to the resistance value of the wiring test resistor 24 will flow between the plus terminal and the minus terminal of the upper device 10. For example, if the wiring voltage applied by the upper device 10 is 48V and the resistance value of the wiring test resistor 24 is 9.6kΩ, a wiring test current of 5mA will flow. Although the case where the wiring test switch 22 is pressed in the disaster prevention terminal device 12(12-1) is taken as an example for explanation, when the wiring test switch 22 is pressed in the disaster prevention terminal devices 12(12-2) and 12(12-3), a wiring test current of 5mA will also flow in the same manner.

[0182] And when the resistance value of the termination resistor 28 is set to the same 9.6kΩ as that of the wiring test resistor 24, during normal operation, a state monitoring current of 5mA, which is the same as the wiring test current, flows between the plus terminal and the minus terminal of the upper device 10. That is, there is almost no change in the wiring current flowing between the plus terminal and the minus terminal of the upper device 10 during the test by the wiring test unit 20 compared to normal times. It is easier to distinguish between the disaster prevention detection current flowing when the push switch 14 is pressed and the wiring current (only the wiring test current in the second embodiment) flowing during the test by the wiring test unit 20 than in the first embodiment. Also, the disaster prevention detection current can be set to a lower current value than in the first embodiment, making it possible to reduce power consumption.

[0183] (e2. First Configuration of Disaster Prevention Terminal Device and Disaster Prevention System with Operation Switches Connected in Parallel) Next, regarding the first configuration of the disaster prevention terminal device and the disaster prevention system with the operation switches connected in parallel in the second embodiment, the case where the disaster prevention terminal device has two push switches connected in parallel as operation switches will be described. For this description, refer to FIG. 13 showing the first configuration of the disaster prevention terminal device and the disaster prevention system with two push switches connected in parallel in the second embodiment.

[0184] As shown in FIG. 13, in this embodiment, a disconnect switch 72 is added to the first embodiment shown in FIG. 3. After the signal line 1110 is drawn out from the host device 10, it is sequentially connected to the first terminal 1610 and the fifth terminal 1614 of the terminal block 16 provided in the disaster prevention terminal devices 12(12-1) to 12(12-3) of the disaster prevention terminal devices 12(12-1) to 12(12-3) so that the first terminal 1610 is upstream of the fifth terminal 1614. Since the other configurations are the same as those in FIG. 3, the same reference numerals are given and the description thereof is omitted.

[0185] The disconnect switch 72 is the same as that in the embodiment shown in FIG. 12. It is a normally closed and non-locking push switch, and is a switch that is opened (turned off) in conjunction with the closing (turning on) of the wiring test switch 22. When the disconnect switch 72 is opened in conjunction with the closing of the wiring test switch 22 by the pressing operation of the wiring test switch 22, the signal line 1110 located downstream of itself is disconnected.

[0186] (e3. Second configuration of disaster prevention terminal device and disaster prevention system with operation switches connected in parallel) Next, regarding the second configuration of the disaster prevention terminal device and the disaster prevention system in which the operation switches in the second embodiment are connected in parallel, a case where the disaster prevention terminal device has two push switches connected in parallel as operation switches will be described. In this description, reference is made to FIG. 14 showing the second configuration of the disaster prevention terminal device and the disaster prevention system in which two push switches in the second embodiment are connected in parallel.

[0187] As shown in FIG. 14, in this embodiment, a disconnect switch 72 is added to the first embodiment shown in FIG. 4. After the signal line 1110 is drawn out from the host device 10, it is sequentially connected to the first terminal 1610 and the fifth terminal 1614 of the terminal block 16 provided in the disaster prevention terminal devices 12(12-1) to 12(12-3) of the disaster prevention terminal devices 12(12-1) to 12(12-3) so that the first terminal 1610 is upstream of the fifth terminal 1614. Since the other configurations are the same as those in FIG. 4, the same reference numerals are given and the description thereof is omitted.

[0188] The disconnect switch 72 is the same as that in the embodiment shown in FIG. 12. It is a normally closed and non-locking push switch, which is a switch that is opened (turned off) in conjunction with the closing (turning on) of the wiring test switch 22. When the wiring test switch 22 is closed by the pressing operation of the wiring test switch 22, the disconnect switch 72 is opened, disconnecting the signal line 1110 located downstream of itself.

[0189] Also, corresponding to the first embodiment shown in FIGS. 2 to 4, the second embodiment with the disconnect switch 72 added is shown in FIGS. 12 to 14. Similar to the first embodiment, the disaster prevention terminal device 12 in FIG. 12 is applied to the transmitter 62 of the fire hydrant device 30 shown in FIG. 9, and the disaster prevention terminal device 12 in FIG. 13 or FIG. 14 is applied to the pump starting device 65 and the pump start linkage device 66 of the fire hydrant device 30 shown in FIG. 9.

[0190] [f. Third Embodiment of Disaster Prevention Terminal Device and Disaster Prevention System] Subsequently, a third embodiment of a disaster prevention terminal device and a disaster prevention system, which is an embodiment in which the wiring test unit is provided in an external device, will be described.

[0191] (f1. Configuration of Disaster Prevention Terminal Device and Disaster Prevention System) First, the configuration of the disaster prevention terminal device and the disaster prevention system in the third embodiment will be described in the case where the disaster prevention terminal device has one push switch as an operation switch. For this description, refer to FIG. 15 showing the third embodiment of the disaster prevention terminal device and the disaster prevention system.

[0192] As shown in FIG. 15, in this embodiment, similar to the first embodiment in FIG. 2, the signal line 1110 and the common line 1120 are drawn out from the upper device 10, and the signal line 1110 and the common line 1120 are sequentially connected to the disaster prevention terminal devices 12(12-1) to 12(12-3), and the termination resistor 28 is connected to the ends of the signal line 1110 and the common line 1120.

[0193] Further, similar to the first embodiment shown in FIG. 2, the disaster prevention terminal device 12 includes a push switch 14 and a terminal block 16. The first internal wiring 1810 connects between the first terminal 1610 of the terminal block 16 and the first switch terminal 1410 of the push switch 14. The second internal wiring 1812 connects between the second terminal 1612 of the terminal block 16 and the first switch terminal 1410 of the push switch 14. The third internal wiring 1820 connects between the third terminal 1620 of the terminal block 16 and the second switch terminal 1420 of the push switch 14. The fourth internal wiring 1822 connects between the fourth terminal 1622 of the terminal block 16 and the second switch terminal 1420 of the push switch 14.

[0194] In the third embodiment, unlike the first and second embodiments, the wiring test unit 20 is not provided in the disaster prevention terminal device 12. Instead, a wiring test unit 20 is provided in a portable test device 74 that can perform tests on the connected disaster prevention terminal device 12 by connecting to the disaster prevention terminal device 12. In this way, since the wiring test unit 20 is not provided in the disaster prevention terminal device 12, the configuration of the disaster prevention terminal device 12 is simplified, making it possible to reduce costs.

[0195] The wiring test unit 20 provided in the test device 74 has a wiring test switch 22, a current display unit 26, and a wiring test resistor 24 connected in series. A series circuit of a lighting test switch 76 and a battery power supply 77 is connected in parallel to the current display unit 26. Note that, compared with the wiring test unit 20 in FIG. 2, the order of connecting the wiring test resistor 24 and the current display unit 26 is reversed, but there is no difference in the wiring test function.

[0196] In addition, in the third embodiment, a test connector 78 is provided to enable the test device 74 to be connected to the disaster prevention terminal device 12. The structure and type of the test connector 78 are arbitrary. In this embodiment, for example, it is composed of a connector jack 80 provided on the disaster prevention terminal device 12 side and a connector plug 82 provided on the test device 74 side to ensure waterproofness.

[0197] Connected to the connector jack 80 provided on the disaster prevention terminal device 12 side are a connector wiring 8010 from the first switch terminal 1410 of the push switch 14 and a connector wiring 8020 from the second switch terminal 1420 of the push switch 14.

[0198] Also, connected to the connector plug 82 provided on the test device 74 side are a connector wiring 7410 from the wiring test switch 22 and a connector wiring 7420 from the wiring test resistor 24.

[0199] Subsequently, a wiring test of the disaster prevention terminal device using the test device 74 will be described. When testing the line state of the wiring of the disaster prevention terminal device 12, the connector plug 82 of the test device 74 is connected to the connector jack 80 of the disaster prevention terminal device 12 to be tested, and the wiring test switch 22 of the test device 74 is pressed to check the lighting state of the LED of the current display unit 26.

[0200] For example, when the test device 74 is connected to the first-stage disaster prevention terminal device 12 (12-1) and the wiring test switch 22 of the test device 74 is pressed, a wiring test current flows through a path from the plus terminal of the upper device 10, via the signal line 1110, the first internal wiring 1810, the second internal wiring 1812, the connector wiring 8010, the test connector 78, the connector wiring 7410, the wiring test switch 22, the current display unit 26, the wiring test resistor 24, the connector wiring 7420, the test connector 78, the connector wiring 8020, the fourth internal wiring 1822, the third internal wiring 1820, and the common line 1120, to the minus terminal of the upper device 10.

[0201] If the signal line 1110, the common line 1120, the internal wiring 18, and the connector wirings 7410, 7420, 8010, 8020 are normal, the wiring test current flows, so the LED of the current display unit 26 lights up. If there is a disconnection in any of the signal line 1110, the common line 1120, the internal wiring 18, and the connector wirings 7410, 7420, 8010, 8020, the wiring test current does not flow, so the LED of the current display unit 26 does not light up, enabling identification of the disconnected wiring and taking measures such as replacement and repair.

[0202] In addition, the test device 74 has a lighting test function for the LEDs of the current display unit 26. Before connecting the test device 74 to the disaster prevention terminal device 12 and conducting a test, the lighting test switch 76 provided on the test device 74 is pressed, and a current is passed from the battery power supply 77 to the LEDs of the current display unit 26, so as to confirm whether the LEDs of the current display unit 26 light up or not.

[0203] Although the case where the test device 74 is connected to the disaster prevention terminal device 12(12-1) and a test is conducted has been described as an example, the same applies to the case where the test is conducted by connecting to the disaster prevention terminal devices 12(12-2) and 12(12-3).

[0204] (f2. First Configuration of Disaster Prevention Terminal Device and Disaster Prevention System with Operation Switches Connected in Parallel) Next, regarding the first configuration of the disaster prevention terminal device and the disaster prevention system with operation switches connected in parallel in the third embodiment, the case where the disaster prevention terminal device has two push switches connected in parallel as operation switches will be described. In this description, refer to FIG. 16 showing the first configuration of the disaster prevention terminal device and the disaster prevention system with two push switches connected in parallel in the third embodiment.

[0205] As shown in FIG. 16, in this embodiment, similar to the first embodiment in FIG. 3, the signal line 1110 and the common line 1120 are drawn out from the upper device 10, and the signal line 1110 and the common line 1120 are sequentially connected to the disaster prevention terminal devices 12(12-1) to 12(12-3), and the termination resistor 28 is connected to the terminals of the signal line 1110 and the common line 1120.

[0206] Further, similar to the first embodiment shown in FIG. 3, the disaster prevention terminal device 12 includes two push switches 14 and 15 and a terminal block 16. The first terminal 1610 of the terminal block 16 and the first switch terminal 1410 of the push switch 14 are connected by a first internal wiring 1810, the second terminal 1612 of the terminal block 16 and the first switch terminal 1410 of the push switch 14 are connected by a second internal wiring 1812, the third terminal 1620 of the terminal block 16 and the second switch terminal 1420 of the push switch 14 are connected by a third internal wiring 1820, the fourth terminal 1622 of the terminal block 16 and the second switch terminal 1420 of the push switch 14 are connected by a fourth internal wiring 1822, and the push switches 14 and 15 are connected in parallel by a first internal wiring 1710 and a second parallel internal wiring 1720.

[0207] Also in this embodiment, similar to the third embodiment shown in FIG. 15, a wiring test unit is not provided in the disaster prevention terminal device 12, and a wiring test unit 20 is provided in the portable test device 74. The test device 74 is the same as the test device 74 shown in FIG. 15, and is connected to the disaster prevention terminal device 12 by a test connector 78 composed of a connector jack 84 provided on the disaster prevention terminal device 12 side and a connector plug 82 provided on the test device 74 side. The wiring test unit 20 tests the line state of the wiring of each disaster prevention terminal device 12.

[0208] (f3. Second Configuration of Disaster Prevention Terminal Device and Disaster Prevention System with Operation Switches Connected in Parallel) Next, regarding the second configuration of the disaster prevention terminal device and the disaster prevention system in which the operation switches in the third embodiment are connected in parallel, a case where the disaster prevention terminal device has two push switches connected in parallel as operation switches will be described. In this description, refer to FIG. 17 showing the second configuration of the disaster prevention terminal device and the disaster prevention system in which two push switches in the third embodiment are connected in parallel.

[0209] As shown in FIG. 17, in this embodiment, similar to the first embodiment shown in FIG. 4, a signal line 1110 and a common line 1120 are drawn out from the host device 10, and the signal line 1110 and the common line 1120 are sequentially connected to the disaster prevention terminal devices 12(12-1) to 12(12-3), and a termination resistor 28 is connected to the ends of the signal line 1110 and the common line 1120.

[0210] Further, similar to the first embodiment shown in FIG. 4, the disaster prevention terminal device 12 includes two push switches 14 and 15 and a terminal block 16. The first terminal 1610 of the terminal block 16 is connected to the first switch terminal 1410 of the push switch 14 by a first internal wiring 1810, the second terminal 1612 of the terminal block 16 is connected to the first switch terminal 1510 of the push switch 15 by a second internal wiring 1812, the third terminal 1620 of the terminal block 16 is connected to the second switch terminal 1420 of the push switch 14 by a third internal wiring 1820, the fourth terminal 1622 of the terminal block 16 is connected to the second switch terminal 1520 of the push switch 15 by a fourth internal wiring 1822, and the push switches 14 and 15 are connected in parallel by a first internal wiring 1710 and a second parallel internal wiring 1720.

[0211] Similar to the third embodiment shown in FIG. 15, in this embodiment, the disaster prevention terminal device 12 is not provided with a wiring test unit, and the wiring test unit 20 is provided in the portable test device 74. The test device 74 is the same as the test device 74 shown in FIG. 15, and is connected to the disaster prevention terminal device 12 by a test connector 78 composed of a connector jack 84 provided on the disaster prevention terminal device 12 side and a connector plug 82 provided on the test device 74 side. The wiring test unit 20 tests the line state of the wiring of each disaster prevention terminal device 12.

[0212] For example, when the test device 74 is connected to the disaster prevention terminal device 12 (12-1) in the first stage and the wiring test switch 22 of the test device 74 is pressed, a wiring test current flows through a path from the plus terminal of the host device 10 via the signal line 1110, the first internal wiring 1810, the first parallel internal wiring 1710, the second internal wiring 1812, the connector wiring 8010, the test connector 78, the connector wiring 7410, the wiring test switch 22, the current display unit 26, the wiring test resistor 24, the connector wiring 7420, the test connector 78, the connector wiring 8020, the fourth internal wiring 1822, the second parallel internal wiring 1720, the third internal wiring 1820, and the common line 1120 to the minus terminal of the host device 10.

[0213] If the signal line 1110, common line 1120, internal wiring 18, parallel internal wiring 17, and connector wirings 7410, 7420, 8010, 8020 are normal, a wiring test current flows, so the LED of the current display unit 26 lights up. If there is a disconnection in any of the signal line 1110, common line 1120, internal wiring 18, parallel internal wiring 17, and connector wirings 7410, 7420, 8010, 8020, the wiring test current does not flow, so the LED of the current display unit 26 does not light up, and the disconnected wiring can be identified to enable countermeasures such as replacement and repair.

[0214] Although the case where the test device 74 is connected to the disaster prevention terminal device 12 (12-1) for testing has been described as an example, the same applies to the case where the test is performed by connecting to the disaster prevention terminal devices 12 (12-2) and 12 (12-3).

[0215] (f4. Emergency equipment to which the disaster prevention system of the third embodiment is applied) Next, the emergency equipment to which the disaster prevention system of the third embodiment is applied will be described. In this description, reference is made to FIG. 18 showing the electrical equipment door and fire extinguisher door of the fire hydrant device to which the disaster prevention terminal device of the third embodiment is applied from the back side, and FIG. 19 showing the opened electrical equipment door of the fire hydrant device to which the disaster prevention terminal device of the third embodiment is applied from the left side.

[0216] As emergency equipment to which the disaster prevention system of the third embodiment is applied, for example, the disaster prevention terminal device 12 in FIG. 15 is applied to the transmitter 62 of the fire hydrant device 30 in FIG. 9, and the disaster prevention terminal device 12 in FIG. 16 or FIG. 17 is applied to the pump starting device 65 and pump starting interlocking device 66 of the fire hydrant device 30 in FIG. 9.

[0217] When the disaster prevention test device 12 of the third embodiment is applied to the fire hydrant device 30 in this way, the connector jacks 80 and 84 provided on the fire hydrant device 30 side are arranged on the back side of the electrical equipment door 58 of the fire hydrant device 30 as shown in FIG. 18. Since the back structures of the fire extinguisher door 56 and the electrical equipment door 58 shown in FIG. 18 are the same as those shown in FIG. 7, the same reference numerals are given and the description thereof is omitted.

[0218] Here, the connector jacks 80 and 84 have the same structure as the telephone jack 67 disposed on the back side of the electrical equipment door 58, and the jack holes of the connector jacks 80 and 84 are waterproof structures closed by screwing on the caps.

[0219] Therefore, for example, as shown in FIG. 19, when connecting the connector plug 82 of the test device 74 to the connector jack 80, the electrical equipment door 58 is opened to expose the back side, the cap of the connector jack 80 is removed, and the connector jack 82 of the test device 74 is inserted into the connector jack 80 for connection. When the wiring test switch 22 of the test device 74 is pressed in this state, if the wiring to the transmitter push switch 32 of the transmitter 62 is normal, the LED of the current display unit 26 lights up. If any of the wirings is disconnected, the LED of the current display unit 26 does not light up, and the disconnected wiring can be identified and measures such as replacement and repair can be taken.

[0220] Also, when connecting the connector plug 82 of the test device 74 to the connector jack 84, similarly, the electrical equipment door 58 is opened to expose the back side, the cap of the connector jack 84 is removed, and the connector jack 82 of the test device 74 is inserted into the connector jack 84 for connection. When the wiring test switch 22 of the test device 74 is pressed in this state, if the wiring to the pump start push switch 38 of the pump start device 65 and the pump start interlock push switch 40 of the pump start interlock device 66 is normal, the LED of the current display unit 26 lights up. On the other hand, if any of the wirings is disconnected, the LED of the current display unit 26 does not light up, and the disconnected wiring can be identified and measures such as replacement and repair can be taken.

[0221] [g. Modification Example of the Present Invention] A modification example of the disaster prevention terminal device and the disaster prevention system according to the present invention will be described. The disaster prevention terminal device and the disaster prevention system according to the present invention include the following modifications in addition to the above-described embodiments.

[0222] (Disaster Prevention System) In the above-described embodiment, the case where the disaster prevention system is applied to emergency facilities such as tunnels is taken as an example. However, the disaster prevention terminal device and the devices and facilities to which the disaster prevention system is applied are arbitrary. For example, the disaster prevention terminal device may be applied to a manual reporting device connected to a disaster prevention receiver. The manual reporting device is provided with a transmitter, and by making it possible to similarly test the wiring to the transmitter, it is possible to monitor the line state of the wiring path including the internal wiring of the transmitter.

[0223] (Number of push switches provided in the disaster prevention terminal device and number of connection terminals of the terminal block used) The number of push switches provided in the disaster prevention terminal device shown in the above-described embodiment and the number of connection terminals of the terminal block used corresponding to the number of push switches are merely examples and are not limited thereto. The disaster prevention terminal device is appropriately configured corresponding to the number of push switches, and the disaster prevention terminal device is connected to the signal wiring from the upper device to configure a disaster prevention system, enabling the monitoring of the state of the internal wiring and signal wiring.

[0224] (Monitoring of wiring deterioration) In addition, the wiring monitoring unit 1010 of the upper device 10 shown in the above-described embodiment monitors the disconnection of the signal line including the internal wiring connecting a plurality of disaster prevention terminal devices, but is not limited thereto. The deterioration of the wiring including the internal wiring may be determined. For example, the insulation deterioration of the wiring may be detected by the wiring test current exceeding a predetermined value, or the sign of the disconnection of the wiring may be detected by the wiring test current falling below a predetermined value.

[0225] (Current display unit) In addition, in the above-described embodiment, the current display unit 26 of the wiring test unit 20 includes a light emitting unit using an LED, but the configuration for displaying the state of the wiring test current is not limited thereto. For example, the current display unit 26 may include an ammeter, a bar graph display, or the like.

[0226] (Others) In addition, the present invention includes appropriate modifications that do not impair its object and advantages, and is not limited by the numerical values shown in the above-described embodiment.

Description of reference numerals

[0227] 10: Upper device 1010: Wiring monitoring unit 11: Signal wiring 1110: Signal line 1112: Transmitter signal line 1114: Response signal line 1116: Pump start signal line 1120: Common line 12, 12(12 - 1)~12(12 - 3): Disaster prevention terminal device 14, 15: Push switch 1410, 1510, 3210, 3810, 4010: First switch terminal 1420, 1520, 3220, 3820, 4020: Second switch terminal 16: Terminal block 1610: First terminal 1612: Third terminal 1614: Fifth terminal 1616: Seventh terminal 1618: Ninth terminal 1620: Second terminal 1622: Fourth terminal 1624: Sixth terminal 1626: Eighth terminal 1628: Tenth terminal 17: Parallel internal wiring 1710: First parallel internal wiring 1720: Second parallel internal wiring 18: Internal wiring 1810: First internal wiring 1812: Second internal wiring 1814: Fifth internal wiring 1816: Seventh internal wiring 1820: Third internal wiring 1822: Fourth internal wiring 1824: Sixth internal wiring 1826: Eighth internal wiring 20, 2010, 2020: Wiring test unit 22: Wiring test switch 24: Wiring test resistor 25,76: Lighting test switch 26: Current display unit 27: Lighting test resistor 28,2810,2820: Terminal resistance 30,30(30 - 1)~30(30 - 3): Fire hydrant device 32: Transmitter pressing switch 34: Transmitter interlocking pressing switch 38: Pump start pressing switch 40: Pump start interlocking pressing switch 50a,50b: Housing 51a,51b: Decorative frame 52: Fire hydrant door 52a,54a,56a,58a: Hinge 5610: Door handle 54: Maintenance door 56: Fire extinguisher door 57: Peephole 58: Electrical equipment door 60: Red indicator lamp 62: Transmitter 63: Mounting plate 64: Response lamp 65: Pump start device 66: Pump start interlocking device 67: Telephone jack 68: Fire extinguisher 70a,70b: Terminal box 72: Disconnect switch 74: Test device 77: Battery power supply 78: Test connector 7410,7420,8010,8020: Connector wiring 80,84: Connector jack 82: Connector plug 100: Disaster prevention receiving board

Claims

1. An emergency prevention terminal device comprising: an operation switch having a first switch terminal and a second switch terminal, and short-circuiting between the first switch terminal and the second switch terminal by a predetermined operation; a first internal wiring and a second internal wiring led out from the first switch terminal of the operation switch; a third internal wiring and a fourth internal wiring led out from the second switch terminal of the operation switch; a wiring connection portion to which a pair of signal wirings from the outside are connected to the first internal wiring to the fourth internal wiring; wherein the wiring connection portion includes: a first wiring connection point to which one of the first internal wiring and a pair of signal wirings from the outside is connected; a second wiring connection point to which one of the second internal wiring and a pair of signal wirings from the outside is connected; a third wiring connection point to which the other of the third internal wiring and a pair of signal wirings from the outside is connected; a fourth wiring connection point to which the other of the fourth internal wiring and a pair of signal wirings from the outside is connected; and a wiring test portion for testing a line state of a wiring path including the first internal wiring to the fourth internal wiring is provided between any one of the first wiring connection point or the second wiring connection point of the wiring connection portion and any one of the third wiring connection point or the fourth wiring connection point.

2. The emergency prevention terminal device according to claim 1, wherein the wiring test portion connects a wiring test operation portion, a wiring monitoring resistor, and a current display portion in series between any one of the first wiring connection point or the second wiring connection point of the wiring connection portion and any one of the third wiring connection point or the fourth wiring connection point, and the state of a wiring test current flowing through a wiring path including the first internal wiring to the fourth internal wiring and the wiring test portion corresponding to the wiring monitoring resistor is displayed by the current display portion by an operation of the wiring test operation portion, thereby notifying a line state of the wiring path including the first internal wiring to the fourth internal wiring.

3. The emergency prevention terminal device according to claim 2, wherein the current display portion includes a light emitting portion that lights up by the wiring test current flowing corresponding to the wiring monitoring resistor when the wiring test operation portion is operated, thereby notifying that the line state of the wiring path including the first internal wiring to the fourth internal wiring is normal.

4. The emergency prevention terminal device according to claim 2, ​ ​ The wiring test unit further includes a display test unit that, by the operation of the display test operation unit, checks the display by the current display unit by flowing a current to the current display unit without passing through the first internal wiring to the fourth internal wiring. The disaster prevention terminal device is characterized by this.

5. The disaster prevention terminal device according to claim 1, wherein the wiring test unit is provided in a predetermined test device that can be connected to the disaster prevention terminal device, and by connecting the test device to the disaster prevention terminal device, the wiring test unit is provided between any one of the first wiring connection point or the second wiring connection point of the wiring connection unit and any one of the third wiring connection point or the fourth wiring connection point. The disaster prevention terminal device is characterized by this.

6. The disaster prevention terminal device according to claim 1, further comprising another operation switch connected in parallel to the operation switch, wherein the first switch terminal of the operation switch and the first switch terminal of the other operation switch, and the second switch terminal of the operation switch and the second switch terminal of the other operation switch are connected by parallel internal wiring. The disaster prevention terminal device is characterized by this.

7. An operation switch having a first switch terminal and a second switch terminal, which shorts between the first switch terminal and the second switch terminal by a predetermined operation, and another operation switch, a first internal wiring led out from the first switch terminal of the operation switch, a second internal wiring led out from the first switch terminal of the other operation switch, a third internal wiring led out from the second switch terminal of the operation switch, a fourth internal wiring led out from the second switch terminal of the other operation switch, and a wiring connection unit to which the first internal wiring to the fourth internal wiring and a pair of signal wirings from the outside are connected, is a disaster prevention terminal device comprising: the first switch terminal of the operation switch and the first switch terminal of the other operation switch, and the second switch terminal of the operation switch and the second switch terminal of the other operation switch are connected by parallel internal wiring, the wiring connection unit includes: a first wiring connection point to which the first internal wiring and one of the pair of signal wirings from the outside are connected, a second wiring connection point to which the second internal wiring and one of the pair of signal wirings from the outside are connected, a third wiring connection point to which the third internal wiring and the other of the pair of signal wirings from the outside are connected, a fourth wiring connection point to which the fourth internal wiring and the other of the pair of signal wirings from the outside are connected; comprising; A wiring test unit for testing the line state of a wiring path including the first to fourth internal wirings and the parallel internal wiring is provided between any one of the first wiring connection point or the second wiring connection point of the wiring connection part and any one of the third wiring connection point or the fourth wiring connection point. A disaster prevention terminal device characterized by that.

8. A disaster prevention system in which a plurality of disaster prevention terminal devices according to any one of Claims 1 to 7 are provided, One of the pair of signal wirings is drawn out from a host device, and is sequentially connected to the first wiring connection point and the second wiring connection point of each disaster prevention terminal device so that either the first wiring connection part point or the second wiring connection part point to which the wiring test unit is not connected is on the upstream side, and The other of the pair of signal wirings is drawn out from a host device, and is sequentially connected to the third wiring connection point and the fourth wiring connection point of each disaster prevention terminal device so that either the third wiring connection point or the fourth wiring connection point to which the wiring test unit is not connected is on the upstream side, The ends of one of the pair of signal wirings and the other of the pair of signal wirings are connected via a termination resistor, The host device monitors the line state of a signal line including the pair of signal wirings and the first to fourth internal wirings. A disaster prevention system characterized by that.

9. The disaster prevention system according to Claim 8, Any one of the first wiring connection point to the fourth wiring connection point to which the wiring test unit is connected is Any one of the first internal wiring to the fourth internal wiring connected to any one of the first wiring connection point to the fourth wiring connection point and the first connection point to which the wiring test unit is connected, and A second connection point to which a signal wiring drawn to the downstream side is connected, comprising; The wiring test unit is provided between the first connection point and the second connection point, and includes a disconnect switch that disconnects the connection between the first connection point and the second connection point in conjunction with a predetermined test operation. A disaster prevention system characterized by that.

10. The disaster prevention system according to Claim 8, The host device is a disaster prevention receiving panel, and the disaster prevention terminal device is a predetermined device provided in a fire hydrant device connected to a signal wiring from the disaster prevention receiving panel. A disaster prevention system characterized by that.

11. The disaster prevention system according to Claim 10, The predetermined device serving as the disaster prevention terminal device is a transmitter equipped with a push switch that transmits a fire alarm signal to the disaster prevention receiving panel when it is pressed as the operation switch. The wiring test unit tests the line state of the wiring to the push switch of the transmitter, and is a disaster prevention system characterized by this.

12. The disaster prevention system according to claim 10, wherein the predetermined device serving as the disaster prevention terminal device is a pump starting device equipped with a push switch that transmits a pump starting signal to the disaster prevention receiving panel when it is pressed as the operation switch, and a pump starting interlocking device equipped with a push switch that is connected in parallel to the push switch of the pump starting device as the operation switch, detects an opening operation of a fire hydrant valve, and transmits a pump starting signal to the disaster prevention receiving panel, and the wiring test unit tests the line state of the wiring to the push switches of the pump starting device and the pump starting interlocking device, and is a disaster prevention system characterized by this.

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