JP2017040157A - Control station, slave station, control method for control station, and control method for slave station - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a control station, a slave station, a control method for the control station, and a control method for the slave station that are capable of performing closing control on a gate while securing an escape time.SOLUTION: A control station of an embodiment, that is a control station for a gate control system that includes the control station and slave stations and controls action of gates, includes an information acquisition unit and a control information transmission unit. The information acquisition unit acquires emergency information through satellite communication. The control information transmission unit, on the basis of the emergency information, simultaneously transmits gate control information for controlling gates to slave stations through the satellite communication.SELECTED DRAWING: Figure 6

Description

  Embodiments described herein relate generally to a control station, a slave station, a control method for the control station, and a control method for the slave station.

When an earthquake or tsunami occurs, emergency information (J-ALERT) is issued from the fire department via a communication satellite or the like. When J-ALERT is issued, there is a system for informing residents of information using disaster prevention administrative radio, sirens, cable broadcasting, or the like. When receiving information on the tsunami caused by J-ALERT, the operator instructs the gates such as sluices and land anchors to close in order to prevent flooding on land. Since it may be difficult to secure an operator when a disaster occurs, it is considered to automatically close the gate.
However, if the gates (water gates and landlocks) are automatically closed, the roads and waterways on the outside (sea side) and inside (land side) of the gates are blocked, so people outside the gates evacuate inside the gates. There was a problem that would be difficult to do.

JP 2003-278122 A JP 2007-332534 A

  The problem to be solved by the present invention is to provide a control station, a slave station, a control method of the control station, and a control method of the slave station, which can control the closing of the gate while securing a retreat time.

  The control station of the embodiment is the control station of the gate control system that controls the operation of the gate including the control station and the slave station, and includes an information acquisition unit and a control information transmission unit. The information acquisition unit acquires emergency information via satellite communication. The control information transmitting unit simultaneously transmits gate control information for controlling the gate to the slave station via satellite communication based on the emergency information.

The figure which shows the system configuration | structure of the gate control system of 1st Embodiment. The block diagram which shows an example of a function structure of the control station of 1st Embodiment. The block diagram which shows an example of a function structure of the control center of 1st Embodiment. The block diagram which shows an example of a function structure of the subunit | mobile_unit of 1st Embodiment. The figure which shows communication of the gate control system in 1st this embodiment. The sequence diagram which shows an example of the 1st automatic gate operation process of 1st Embodiment. The sequence diagram which shows an example of the 2nd automatic gate operation process of 1st Embodiment. The sequence diagram which shows an example of the collection process of the apparatus information of 1st Embodiment. The sequence diagram which shows an example of the 1st manual gate operation process of 1st Embodiment. The sequence diagram which shows an example of the 2nd manual gate operation process of 1st Embodiment. The sequence diagram which shows an example of the automatic gate operation process of 2nd Embodiment. The sequence diagram which shows an example of the retry process of the signal transmission in the control station of 3rd Embodiment. The figure which shows an example of the update of the operation signal transmitted by the retry process of the gate operation of 3rd Embodiment. The sequence diagram which shows another example of the retry process of the signal transmission in the control station of 4th Embodiment. The sequence diagram which shows an example of the retry process of the gate closure in the slave station of 4th Embodiment.

  Hereinafter, a control station, a slave station, a control method of the control station, and a control method of the slave station according to the embodiment will be described with reference to the drawings.

<First Embodiment>
First, the first embodiment will be described with reference to FIG.
FIG. 1 is a diagram illustrating a system configuration of a gate control system 1000 using satellite communication according to the first embodiment. In the following description, tsunami information for notifying the occurrence of a tsunami of J-ALERT will be described as an example of emergency information.
The gate control system 1000 includes a first control station 1-1, a second control station 1-2, a control station 2, and a slave station 3. The first control station 1-1 and the second control station 1-2 and the control station 2, or the first control station 1-1 and the second control station 1-2, and a plurality of slave stations 3 (one representative as shown in the figure) Only are shown), and are connected so as to be able to communicate with each other by satellite communication via the communication satellite 7. A plurality of gate control devices 6-1 to 6-n (n is an integer of 2 or more) is connected to the slave station 3. Here, the gate is, for example, a sluice or a landlock. In the following description, the first control station 1-1 and the second control station 1-2 are referred to as a control station (also referred to as “control station system”) 1 unless otherwise distinguished. In the following description, the gate control devices 6-1 to 6-n will be referred to as the gate control device 6 unless otherwise distinguished.

  The first control station 1-1 is, for example, a facility provided in a government office (for example, a metropolitan government office, a prefectural office, a prefectural office, and a prefectural office) that is the center of a prefecture. The first control station 1-1 operates all sluices / land anchors that the control station has jurisdiction over (for example, in the case of a prefecture-based system, the prefecture). The first control station 1-1 transmits control information for closing the sluice / land ridge to the slave station 3 in response to reception of J-ALERT or an instruction from the control station 2.

  The second control station 1-2 is a facility provided in, for example, a joint government building that is geographically separated from the first control station. Similar to the first control station 1-1, the second control station 1-2 operates all sluices / land anchors under the jurisdiction of the control station. For example, the second control station 1-2 transmits control information to the slave station 3 in response to reception of J-ALERT or an instruction from the control station 2. Here, by arranging a plurality of control stations, availability and reliability can be improved even when a defect occurs in the control station. In addition, the installation position of the first control station 1-1 and the installation position of the second control station 1-2 take into consideration the risk of a satellite link going down due to the effects of disasters such as earthquakes and guerrilla heavy rain. It is desirable to be geographically separated, but the distance of the installation position and the installation location are not limited.

For example, the control station 2 is arranged in a government office of a local public organization such as a municipality or a local fire department. Each control station 2 manages the gates connected to the slave stations 3 within its own jurisdiction. When the control center 2 grasps the opening / closing status of the gates connected to the respective slave stations 3 and determines that the gates need to be closed or opened, the control station 2 sends the control information to the first control station 1- A control signal for closing or opening the gate is transmitted to the first and second control stations 1-2.
The slave station 3 includes a gate control device 6. The slave station 3 sends information for controlling opening / closing of the gate to the gate control device 6 of the local station in accordance with an instruction from the control station facility 1. For example, the slave station 3 controls the gate control device 6 of its own station to close or open the gate according to the control information for closing the gate.
Here, the gate to be controlled in the present embodiment is, for example, a sluice that closes a waterway of a river or a port, or a land that closes a passage. Gates such as sluices and landlocks form part of the dyke by closing when a tsunami occurs.

  Next, the functional configuration of the control station will be described with reference to FIG. FIG. 2 is a block diagram illustrating an example of a functional configuration of the control station according to the first embodiment.

  In FIG. 2, the control station has a control station device 1 and an antenna device 10. The control station apparatus 1 includes a remote monitoring control apparatus 11, a monitoring terminal 12, a monitoring console 13, and a power supply facility 14. Hereinafter, the control station apparatus is abbreviated as “control station”.

  The antenna device 10 receives a J-ALERT signal and transmits / receives a signal to / from a control station or a slave station. The antenna device 10 has an ODU (Out Door Unit) 101. The ODU 101 is attached to the front surface of the antenna and performs transmission processing and reception processing (transmission / reception processing) of signals transmitted and received with a communication satellite reflected by the antenna. The ODU 101 outputs a signal received from a communication satellite to a satellite communication device (IDU) (hereinafter abbreviated as “satellite communication device”) 112 described later. The ODU 101 also outputs a signal received from the satellite communication device 112 to the communication satellite.

  The antenna device 10 is supplied with AC 100V power as an emergency power supply system from the power supply facility 14 via the outdoor distribution board 102 (shown by * 1). The antenna device 10 is supplied with AC 100V power as a normal power supply system from the power supply facility 14 via the outdoor distribution board 102 (shown by * 4). Even when the commercial power supply as the normal power supply is stopped, the antenna device 10 can continue to operate by supplying the power supply of the emergency power supply system.

  The remote monitoring control device 11 includes a satellite communication device 112, a line connection control device 113, a VSAT (Very Small Aperture Terminal) remote monitoring terminal 114, a central simultaneous command monitoring device 115, an L2-SW (Layer 2 Switch) 116, and a J-ALERT. It has a receiving device 117, an automatic failure notification device (including a router) 119, a time management device 120, a power supply unit 121, and an alarm display panel 122.

  The satellite communication device 112 separates the J-ALERT signal received from the ODU 101 of the antenna device 10 and the signal from the control station or the slave station. The satellite communication device 112 outputs the separated J-ALERT signal to the J-ALERT receiver 117. In addition, the satellite communication device 112 outputs a signal acquired from the separated control station 2 or slave station 3 to the line connection control device 113. Further, the satellite communication device 112 outputs the signal acquired from the line connection control device 113 to the antenna device 10.

  In addition, the satellite communication device 112 functions as an IDU (In Door Unit) that modulates and demodulates a transmission / reception signal with a communication satellite transmitted / received by the ODU 101. When the signal is a control signal transmitted from the control station 2 or the slave station 3, the satellite communication device 112 outputs the demodulated signal to the line connection control device 113. In addition, when the received signal is a signal related to the telephone, the satellite communication device 112 outputs the demodulated signal to the telephone 125. Similarly, the satellite communication device 112 modulates the control signal acquired from the line connection control device 113 and the signal related to the satellite phone acquired from the telephone 125 and outputs the modulated signal to the ODU 101.

  The line connection control device 113 controls communication line connection with the control station 2 or the slave station 3. The line connection control device 113 establishes a communication line with the control station 2 or the slave station 3 that transmitted the signal based on the control signal transmitted from the control station 2 or the slave station 3 based on the signal acquired from the satellite communication device 112. . The line connection control device 113 controls the transmission destination based on the control signal acquired from the central simultaneous command monitoring device 115 when transmitting the control signal from the central simultaneous command monitoring device 115 to the control station 2 or the slave station 3. A communication line with the station 2 or the slave station 3 is established.

  For example, the VSAT remote monitoring terminal 114 monitors the communication status with the control station 2 and the slave station 3 and displays whether or not there is any abnormality in the communication status. A method for determining whether or not there is an abnormality in the communication status can be determined by, for example, transmitting a predetermined command to the control station and the slave station and determining whether there is a response to the transmitted command. Whether there is an abnormality in the communication status may be determined periodically at predetermined time intervals.

  The J-ALERT receiver 117 acquires a J-ALERT signal output by the satellite communication device 112 after being separated. The J-ALERT receiving device 117 obtains from the communication satellite in order to reliably receive the J-ALERT, and at the same time, the J-ALERT receiving device 117 is connected to the local government wide area network (LGWAN) (not shown) or the Internet via the Internet (not shown). -You may make it acquire the signal of ALERT.

  The J-ALERT receiving device 117 outputs warning information based on the acquired J-ALERT signal to the central simultaneous command monitoring device 115. For example, when the information of J-ALERT is a tsunami warning (large tsunami), it may include information such as the scope of the tsunami warning, the height of the tsunami in each place, the arrival time of the tsunami in each place, and the like.

  The central simultaneous command monitoring device 115 outputs a simultaneous closing command to the slave stations to be monitored.

  Further, the central simultaneous command monitoring device 115 may output a simultaneous closing command based on an instruction from the monitoring console 13 of the control station 1. Further, the central simultaneous command monitoring device 115 may output a simultaneous notification command based on an instruction from the control station.

  If the central simultaneous command monitoring device 115 includes J-ALERT information (for example, a tsunami is generated or a tsunami is generated), the central simultaneous command monitoring device 115 should be closed based on the J-ALERT information. (Slave station transmitting activation information described later) may be selected. Furthermore, you may transmit to facilities, such as the control station 2, the sub_station | mobile_unit 3, cable broadcasting, and disaster prevention broadcasting.

  The central simultaneous command monitoring device 115 is realized (configured) using a PLC (Programmable Logic Controller). That is, the central simultaneous command monitoring device 115 is described as a functional block having the above-described functions, and the functional blocks can be realized by software or hardware functions, for example. In the present embodiment, the function of the central simultaneous command monitoring device 115 can be realized by a program executed by the PLC. Also in the following description, the case where PLC or FA (Factory Automation) -PC is used is illustrated as a method of realizing the function illustrated in the functional block.

  The central simultaneous command monitoring device 115 receives a monitoring signal (shown by * 3) from an emergency generator 141 described later. The monitoring signal is a signal for monitoring the emergency generator 141, and for example, monitors the operating state of the emergency generator 141.

  The L2-SW 116 is a network switch that connects devices in layer 2 (data link layer). The L2-SW 116 connects the central simultaneous command monitoring device 115, the time management device 120, and the alarm display panel 122 in the remote monitoring control device 11. Further, the L2-SW 116 connects the monitoring terminal control device 126 of the monitoring terminal 12 and the monitoring console processing device 131 of the monitoring console 13 so as to communicate with each other.

  The L2-SW 116 receives a power failure signal from the uninterruptible power supply 143 (illustrated by * 2). The power failure signal is output from the uninterruptible power supply 143 to notify the stop of commercial power failure. When the stop signal is input, the L2-SW 116 outputs a signal for executing a shutdown process to the monitoring terminal control device 126, for example. The monitoring terminal control device 126 or the like that has received the signal can prevent a failure due to the power failure by executing the shutdown process before the power failure.

The automatic failure notification device 119 detects an internal failure of the remote monitoring control device 11 and outputs information on the detected failure to the outside through a telephone line or the like.
The time management device 120 manages time. The time management device 120 may correct the time information used by the remote monitoring control device 11 based on information acquired from a server on the network, for example.
The power supply unit 121 receives a power supply of AC 100V from the power supply facility 14 (illustrated by * 1). That is, the remote monitoring control device 11 can continue to operate even when the power supply facility 14 is constantly supplied with power and the commercial power supply is stopped.

  The warning display panel 122 displays warning information based on J-ALERT information. The alarm display panel 122 may display, for example, tsunami information, earthquake information, weather information, and the like.

The monitoring terminal 12 includes a telephone 125, a monitoring terminal control device 126, a monitor 127, and a power supply unit 128.
The telephone 125 makes an incoming call with a satellite telephone signal using the VSAT system via the satellite communication device 112 and makes a call. It is assumed that the telephone using the VSAT system is arranged in a control station and a slave station, which will be described later, and that the control station, the control station, and the slave station can make a call using the VSAT system.

The monitoring terminal control device 126 has a monitor 127. The monitoring terminal control device 126 graphically displays, for example, device information acquired from the remote monitoring control device 11 or information acquired via a network (not shown) on the monitor 127. . Moreover, you may make it display the image | video of the television camera acquired from the slave station on a monitor. It is assumed that FA-PC is used for the monitoring terminal control device 126. Since the FA-PC has a feature that the communication function and the image processing function are excellent, the monitoring terminal control device 126 can be used for the purpose of taking advantage of the feature of the FA-PC. For example, the monitoring terminal control device 126 may communicate with an FA-PC arranged in a control center system, which will be described later, and perform data communication executable between the PCs, such as sharing device information.
The power supply unit 128 receives power supply of AC 100V from the power supply facility 14 (illustrated by * 1). That is, the monitoring terminal 12 can continue to operate even when the power supply facility 14 is constantly supplied with power and the commercial power supply is stopped.

  The monitoring console 13 includes a monitoring console processing device 131, a touch monitor 132, an alarm operation indicator 133, and a power supply unit 134.

  The monitoring console processing device 131 has a touch monitor 132. The monitoring console processing device 131 displays the monitoring result and device information acquired from the remote monitoring control device 11 on the touch monitor 132. The touch monitor 132 displays, for example, the opening / closing status of the gate managed by the control station 1, the output status of the simultaneous notification command output to the slave station by the remote monitoring control device 11, the output status of the simultaneous closing command, and the like. For example, when the gate to be closed by the simultaneous closing command is not closed, the monitoring console processing device 131 notifies the operator (operator) of the abnormality by displaying the gate that is not closed. The operator may operate the monitoring console processing device 131 based on information on the gate displayed on the touch monitor 132.

The touch monitor 132 may display a screen for manually opening and closing individual gates. In addition, the touch monitor displays a screen for selecting a slave station that is the target of a simultaneous alerting command or a simultaneous closing command, or a screen for selecting a gate that is the target of a simultaneous closing command in each slave station. You may make it do. The touch monitor may display a screen for controlling a device other than the gate. The touch monitor may display a screen showing the opening / closing status of the gate that cannot be controlled by the control station.
The monitoring console processing device 131 may have an operation panel including switches, lamps, and the like. On the operation panel, for example, a switch for opening and closing the gate and a lamp indicating the operation status of the gate may be arranged. A PLC is used for the monitoring console processing device 131.

The alarm operation indicator 133 may be configured to manually transmit a simultaneous alarm notification command or a simultaneous closing command. Further, the alarm operation display 133 may be able to command the activation of the information equipment to each slave station. For example, an operation for instructing a selected slave station to output a siren sound from a speaker can be performed.
The power supply unit 134 is supplied with 100 VAC power from the power supply facility 14 (shown by * 1). That is, the monitoring console 13 can continue to operate even when the power supply facility 14 is constantly supplied with power and the commercial power supply is stopped.

The power supply facility 14 includes an emergency generator 141, a distribution board 142, an uninterruptible power supply (UPS) 143, and a lightning resistant transformer 144.
The power supply facility 14 supplies uninterruptible AC 100V power shown by * 1 to each load facility (antenna device 10, remote monitoring control device 11, monitoring terminal 12, and monitoring console 13). In addition, the power supply of AC 100V of the power failure system illustrated by * 4 is supplied to the antenna device 10. Moreover, the power failure signal illustrated by * 2 is output with respect to L2-SW116.

  Since the power supply facility 14 can always supply power by the uninterruptible power supply 143, each load facility can continue to operate even when the commercial power supply is stopped. While the emergency generator 141 takes several seconds to start up, the uninterruptible power supply 143 can supply power in a few ms, so that it is possible to supply power quickly. On the other hand, the emergency generator 141 can supply power for a long time compared to the uninterruptible power supply 143, and thus can supply power for a long time. In the present embodiment, the power supply facility 14 includes the emergency generator 141 and the uninterruptible power supply 143, thereby enabling stable power supply in a short time and a long time.

The emergency generator 141 outputs a monitoring signal (shown by * 3) to the central simultaneous command monitoring device 115. Further, the uninterruptible power supply 143 outputs a power failure signal (shown by * 2) to the L2-SW 116.
The distribution board 142 has a function of a switching board for switching between a power supply from a commercial power supply and a power supply from the uninterruptible power supply 143. In other words, the distribution board 142 can switch between a power failure system power supply (illustrated by * 4) and an uninterruptible power supply (illustrated by * 1) and output them.
The lightning resistant transformer 144 is a transformer having high resistance to lightning strike, and reduces a surge voltage caused by the lightning strike.

  The power supply facility 14 in the present embodiment supplies the commercial power source as it is to the load when the commercial power source is normal. On the other hand, when the commercial power supply stops, the commercial power supply is disconnected and power is supplied from the inverter of the uninterruptible power supply 143.

  In the present embodiment, when the remote monitoring control device 11 performs gate control, the central simultaneous command monitoring device 115 has a warning information acquisition function for acquiring warning information based on emergency information transmitted via a communication satellite. Further, the central simultaneous command monitoring device 115 has an activation information transmission function for transmitting activation information for activating the notification facility based on the warning information. The central simultaneous command monitoring device 115 has a determination function for determining whether or not a predetermined condition is satisfied after the activation information is transmitted. The central simultaneous command monitoring device 115 has a control information transmission function for transmitting control information for controlling the gate when a predetermined condition is satisfied.

  Next, the functional configuration of the control station 2 will be described with reference to FIG. FIG. 3 is a block diagram illustrating an example of a functional configuration of the control station 2 according to the first embodiment. In this embodiment, the whole illustrated in FIG. 3 will be described as a control center system.

  In FIG. 3, the control station 2 includes a remote monitoring control device 21, a monitoring terminal 22, a monitoring console 23, and a power supply facility 24. Note that description of functions similar to those described in FIG. 2 is omitted.

  The remote monitoring control device 21 includes a satellite communication device 211, a satellite communication control device 212, L2-SW 214. A power supply unit 215 and an uninterruptible power supply 217 are included.

  The satellite communication device 211 is connected to the antenna device 20. The satellite communication device 211 has an IDU function, and modulates / demodulates a transmission / reception signal with a communication satellite transmitted / received by the ODU 201 of the antenna device 20.

The satellite communication control device 212 outputs the information to the monitoring terminal 22 when acquiring the information of the simultaneous notification command transmitted from the remote monitoring control device 11 to the slave station. When the satellite communication control device 212 acquires the device information transmitted by the remote monitoring control device 11, the satellite communication control device 212 outputs the information to the monitoring terminal 22.
Further, when the satellite communication control device 212 acquires the information on the simultaneous closing command transmitted from the remote monitoring control device 11 to the slave station, the satellite communication control device 212 outputs the information to the monitoring console 23.
Further, when the satellite communication control device 212 obtains a control instruction such as opening and closing of the gate controlled by the slave station from the monitoring console 23, the gate is connected to the remote monitoring control device 11 via the satellite communication device 211. The control instruction is output. The satellite communication control device 212 is realized using a PLC.
In addition, a monitoring signal (illustrated by * 1) is input from the emergency generator 243 to the satellite communication control device 212.
The uninterruptible power supply 217 supplies uninterruptible power to the L2-SW 214 and supplies uninterruptible power shown in * 3 to the monitoring terminal 22 and the monitoring console 23.

  The power supply unit 215, the alarm display panel 216, and the uninterruptible power supply 217 have the same configuration as the power supply unit 121, the alarm display panel 122, and the uninterruptible power supply 217 in the remote monitoring control device 11 described in FIG. Description is omitted.

  The monitoring terminal 22 includes a telephone 221, a monitoring terminal control device (FA-PC) 222, a monitor 223, and a power supply unit 224.

  The telephone set 221 is connected to the telephone set 125 of the monitoring terminal 12 described with reference to FIG. 2 so that a call can be made via a communication satellite even in the event of a disaster.

For example, the monitoring terminal control device 222 displays device information acquired from the remote monitoring control device 21 or information acquired via a network (not shown) on the monitor 223. Further, the image of the television camera of the slave station acquired from the control station 1 may be displayed on the monitor. It is assumed that FA-PC is used for the monitoring terminal control device 222 in the same manner as the monitoring terminal control device 126 described with reference to FIG. The monitoring terminal control device 222 may communicate with the monitoring terminal control device 126 of the control station and share information with the monitoring terminal control device 126.
The power supply unit 224 has the same configuration as the power supply unit 128 described with reference to FIG.

  The monitoring console 23 includes a monitoring console processing device 231, a touch monitor 232, an alarm operation indicator 233, and a power supply unit 234.

The monitoring console processing device 231 has a touch monitor 232 in the same manner as the monitoring console processing device 131 described with reference to FIG. On the touch monitor 232, for example, information on the gate of the slave station monitored at the control station is displayed. The monitoring console processing device 231 may individually control the gate displayed on the touch monitor 232. For example, a gate that is closed by a simultaneous closing command from the control station 1 and a gate that is not closed by a simultaneous closing command may be displayed so as to be distinguishable. Further, the device information transmitted from the control station 1 may be displayed on the touch monitor 232.
Further, the monitoring console processing device 231 may individually control the gates that could not be closed by a simultaneous closing command from the control station for some reason.
The monitoring console processing device 231 may have an operation panel including switches, lamps, and the like. On the operation panel, for example, a switch for opening and closing the gate and a lamp indicating the operation status of the gate may be arranged.
The monitoring console processing device 231 transmits a control instruction for the gate to the remote monitoring control device 11 of the control station via the satellite communication control device 212. That is, even when the control station individually controls the gate, the control instruction of the gate is transmitted from the control station to the gate. The monitoring console processing device 231 is realized using a PLC.
The alarm operation indicator 233 and the power supply unit 234 have the same configuration as the alarm operation indicator 133 and the power supply unit 134 described in FIG.

The power supply facility 24 includes a distribution board 241 and a lightning proof transformer 244. The distribution board 241 is supplied with power from a commercial power supply via a lightning-resistant transformer 244 and also supplied with power from an emergency generator 243 with a built-in fuel tank. The distribution board 241 supplies AC100V (shown by “* 2”) of a power failure system to the load equipment.
The power supply facility 24 installs an emergency generator 243 outdoors. By installing the emergency generator 243 outdoors, it is less likely to be limited by the installation space than when installed indoors. In addition, since the power supplied from the distribution board 241 is also supplied with power from the emergency generator 243, power is supplied instead of commercial power by the emergency generator 243 even in a power failure system. Is possible.

Next, the functional configuration of the slave station 3 will be described with reference to FIG. FIG. 4 is a block diagram illustrating an example of a functional configuration of the slave station 3 according to the first embodiment.
When the slave station 3 in the present embodiment acquires information based on the emergency information received by the control station, the slave station 3 immediately activates a notification facility for notifying that the gate is closed to the surroundings without closing the gate.
Here, the information for starting the notification facility received from the control station is referred to as startup information. Further, the slave station 3 opens or closes (opens / closes) the gate based on the acquired information. Information for opening and closing the gate received from the control station is referred to as control information. In the present embodiment, a case where the slave station 3 closes the gate by the control information will be described.

  In FIG. 4, the slave station 3 is communicably connected to the gate control system 5 and the gate control devices 6-1 to 6-n. The gate control devices 6-1 to 6-n will be described as the gate control device 6-n.

  The slave station device (abbreviated as “slave station”) 3 includes a remote monitoring control device 30, a power supply facility 4, and an antenna device 300. The remote monitoring control device 30 includes a satellite communication control device (SAT-G-PLC) 31, an input / output relay unit 33, an L2-SW 34, a telephone 35, an MC (Media Converter) 36, an optical termination 37, and a UPS 38.

  The antenna device 300 includes a satellite communication device 301 and a snow melting device 302. The satellite communication device 301 has the ODU function and IDU function described in FIG. The snow melting device 302 melts snow adhering to the antenna. The antenna device 300 is assumed to be supplied with power from the remote monitoring control device 30.

  The satellite communication control device 31 has a SAT-PLC function and a G-PLC function. The SAT-PLC function outputs information for the gate control system 5 and the like based on information acquired in satellite communication. Information is transmitted to the control station 1 by satellite communication based on information acquired from the control system 5 or the like. The G-PLC function outputs a control instruction from the satellite communication control device 31 to the gate control system 5 and the like, and collects device information from the gate control system 5 and the like. In the present embodiment, the satellite communication control device 31 has a SAT-G-PLC function having both a SAT-PLC function and a G-PLC function. However, the SAT-PLC function and the G-PLC function may be realized by different devices.

The input / output relay unit 33 relays between the remote monitoring control device 30 and the gate control system 5 using a predetermined communication method.
The MC 36 converts the signal of the optical fiber cable and the signal of the electric cable. The optical termination 37 is the end (connecting portion) of the optical cable. “SM-2C” connecting the remote monitoring control device 30 and the gate control system 5 or the like indicates a two-core optical fiber cable. However, the optical fiber cable connecting the remote monitoring control device 30 and the gate control system 5 is not limited to this. In the slave station system, the remote monitoring and control device 30 arranged in a predetermined area (for example, a port, a village, etc.) and the gate control system 5 are connected and controlled with an optical fiber cable, so that the broadband system can be used. Communication resistant to noise becomes possible.
A description of the L2-SW 34, the telephone 35, and the UPS 38 is omitted.

  The power supply facility 4 has a lightning resistant transformer 41. The power supply facility 4 is supplied with power from a private power generator 42 equipped with a commercial power source and a fuel tank. The power supply facility 4 supplies AC100V power (remote power supply) to the remote monitoring control device 30 and monitors the power supply state of the remote monitoring control device 30.

The gate control system 5 includes a machine-side operation panel 51, a broadcast control panel 52, a sluice gate 53, a water level gauge 54, a rotating lamp 55, a speaker 56, a sound collecting microphone 57, a siren sound collecting microphone 58, and an electric display board 59. . The machine-side operation panel 51 includes a gate control circuit 511, a rotating lamp control unit 512, and a water level meter converter 513. The broadcast control panel 52 has a broadcast / alarm control 521 and an electric display panel control 522.
The machine-side operation panel 51 is controlled by the G-PLC function of the satellite communication control device 31 of the remote monitoring control device 30 and outputs device information for monitoring to the satellite communication control device 31. The broadcast control panel 52 is controlled by the G-PLC function of the satellite communication control device 31 and outputs device information for monitoring to the satellite communication control device 31.

  The gate control circuit 511 is a control circuit that performs opening / closing control of the sluice gate (gate) 53. Further, the gate control circuit 511 acquires information indicating the state of the gate from the sluice gate 53. The state of the gate is, for example, a state where the gate is open, a state where the gate is closing, a state where the gate is open, a state where the gate is closed, or a state where some abnormality has occurred in the gate. In the present embodiment, it is assumed that the gate control circuit 511 can transmit a closing signal to the sluice gate 53, and can acquire information indicating that the gate is being closed (during closing). That the gate is being closed can be detected by, for example, a sensor that detects the position of the gate. The gate control circuit 511 transmits to the remote monitoring control device 30 that the closing operation has been performed after transmitting the closing signal to the sluice gate 53. The remote monitoring control device 30 may transmit the state of the gate to the control station 1 via the antenna device 300.

  The plurality of means for opening and closing the gate are, for example, gate motor drive, pneumatic drive, and drive using gravity. In motor driving, for example, the gate is opened and closed by driving a wheel or the like that moves the gate with a motor. In pneumatic driving, the gate may be opened and closed (closed) by applying cylinder air pressure to a cylinder that moves the gate. In driving using gravity, the gate may be closed by removing a stopper that supports the weight of the gate that opens and closes up and down with a solenoid valve or the like.

  The rotating lamp control unit 512 controls the operation of the rotating lamp 55 on and off. The water level meter converter 513 converts the water level of the water level meter 54 into an electrical signal. The water level meter 54 can measure the water level inside the gate and the water level outside the gate. The broadcast / alarm control 521 controls a speaker 56, a sound collecting microphone 57, and a siren sound collecting microphone 58, which are exemplified as safety well-known equipment. The speaker 56 provides sound information around the gate by outputting a siren sound or a sound for notifying an alarm. The sound collection microphone 57 is installed, for example, around the gate, and provides the control station 1 with the voice information by collecting voice information for grasping the state of the gate by voice. The siren sound collecting microphone 58 can be used for collecting siren sound output from the speaker 56 and monitoring whether the siren sound is output correctly. The electric light display board control 522 provides display information by performing control for causing the electric light display board 59 to perform a predetermined display.

  Gate control devices 6-1 to 6-n show other gate control devices. The gate control devices 6-1 to 6-n all have the same configuration.

  The gate control devices 6-1 to 6-n have basically the same configuration as that of the gate control system 5 except that the remote control side panel 60 is provided. The remote unit side panel 60 includes an MC 601, a G-PLC unit 602, a UPS 603, and an input / output relay unit 604. The MC 601, G-PLC unit 602, UPS 603, and input / output relay unit 604 have the same configuration as the MC 36, G-PLC unit 32, UPS 38, and input / output relay unit 33 in the remote monitoring control device 30. That is, since the gate control system 5 is installed near the remote monitoring control device 30, the functions of MC, G-PLC, UPS, and input / output relay unit are accommodated in the remote monitoring control device 30. On the other hand, the gate control device 6-n is installed at a position away from the remote monitoring control device 30 and performs communication using an optical fiber cable, and thus has the functions of MC, G-PLC, UPS, and input / output relay unit. Yes. In addition, when installing a some gate control apparatus near the distant monitoring control apparatus 30, it can aim at the reduction of cost by setting it as the structure of the gate control system 5. FIG.

  The gate control system 5 and the gate control device 6-n have the same device as the power supply facility 4 (including the private power generation device 42), and power is supplied to the configurations illustrated in * 2 and * 3 illustrated. The The power supply facility 4 may be included in each of the gate control system 5 and the gate control device 6-n, and the power supply facility 4 may be shared by the gate control system 5 and the gate control device 6-n. Good.

<Signal flow of the entire system>
Next, the signal flow of the gate control system 1000 will be described with reference to FIG. FIG. 5 is a diagram illustrating communication of the gate control system 1000 according to the first embodiment. As shown in FIG. 5, description will be made assuming that the line from the control station 1 to the control station 2 and the slave station 3 goes down, and the line from the control station 2 and the slave station 3 to the control station 1 goes up. Further, the description will be made assuming that the band used by the first control station is the first system and the band used by the second control station is the second system.

  In the gate control system 1000 in the present embodiment, the first control station 1-1 and the second control station 1-2 receive J-ALERT (for example, notification of occurrence of a tsunami).

When the first control station 1-1 receives J-ALERT (for example, notification of the occurrence of a tsunami), the first control station 1-1 transmits a closing command to the slave station 3 using the simultaneous command line 90 using the 1-system downstream band. . At this time, the second control station 1-2 monitors the simultaneous command line 90 of the 1-system downstream band. As a result, the second control station 1-2 can grasp the operation status of the first control station 1-1.
Independently of this, when the second control station 1-2 receives J-ALERT (for example, notification of the occurrence of a tsunami), the second control station 1-2 uses a simultaneous command line 91 that uses a downstream band of the second system. Send a close command to station 3. At this time, the first control station 1-1 monitors the simultaneous command line 91 of the downstream 2 bands. As a result, the first control station 1-1 can grasp the operation status of the second control station 1-2.

  The slave station 3 instructs the gate control device 6 to control the opening and closing of the gate according to the control information transmitted from the first control station 1-1 and the second control station 1-2, and controls the opening and closing of the gate. The slave station 3 that has received the control information for closing the gate sends a response indicating the state of the gate (for example, opening / closing status) via the communication satellite to the first control station 1-1 and the second control station 1-2. Send to. For example, the slave station 3 transmits a response to the first control station 1-1 using the 1-system upstream band. Further, for example, the slave station 3 transmits a response to the second control station 1-2 by using the upstream band of the second system. The first control station 1-1 and the second control station 1-2 receive the response transmitted from the slave station 3, and transmit the received response to the control station 2.

For example, the first control station 1-1 transmits a response to the control station 2 by using the simultaneous command line 92 using the 1-system downstream band. The second control station 1-2 monitors the simultaneous command line 92 of the 1-system downstream band.
Further, for example, the second control station 1-2 transmits a response to the control station 2 using the simultaneous command line 93 using the downstream band of the second system. The first control station 1-1 monitors the simultaneous command line 93 of the second system downstream band.

<First automatic gate operation processing>
Next, the first automatic gate operation process will be described with reference to FIG. FIG. 6 is a sequence diagram illustrating an example of a first automatic gate operation process according to the first embodiment.
In the first automatic gate operation process, the control station 1 that has received the J-ALERT is illustrated by the SAT-G-PLC unit 31 (“SAT-G-PLC” of the slave station 3. The same applies to FIGS. 7 to 11. )), The simultaneous closing instruction is automatically transmitted, and the closing instruction is transmitted from the slave station 3 to the sluice / land ridge. The simultaneous closing instruction is a control instruction for closing the gates transmitted all at once. In the present embodiment, a simultaneous closing instruction signal is transmitted using simultaneous transmission of satellite communications.

  Note that the SAT-G-PLC unit 31 described in FIG. 6 is realized by the SAT-G-PLC function of the satellite communication control device 31 described in FIG. In FIG. 6, one slave station 3 is illustrated, but a plurality of slave stations 3 are arranged, and the other slave stations 3 are not shown. It is assumed that the same processing is performed in each slave station 3.

  In FIG. 6, first, the control station 1 acquires J-ALERT transmitted via a communication satellite from the fire department 100 exemplified as a predetermined government office (step S101).

  The control station 1 that has received the J-ALERT transmits a simultaneous closing signal (simultaneous closing command) to the SAT-G-PLC units 31 of all the slave stations 3 (step S102), and the control station 2 (“control station”). (The same applies to FIGS. 7 to 11) (step S103). The simultaneous closing signal is transmitted by the central simultaneous command monitoring device 115 of the control station 1 described with reference to FIG.

  As described with reference to FIG. 4, the control station 2 that has acquired the simultaneous closing signal transmits information on the slave station 3 to which the simultaneous closing signal has been transmitted and information on the gates (sluice gate / landing) closed by the simultaneous closing signal, etc. May be displayed.

  In addition, the SAT-G-PLC unit 31 of the slave station 3 that has acquired the simultaneous closing signal transmits activation information for performing activation control of the safety well-known facility (step S104). When the safety and well-known facility is activated, it is notified to the vicinity of the gate by a siren, an announcement, or the like that the gate is closed. By notifying that the gate is closed, it is possible to urge people around the gate to retreat inside the gate.

  The SAT-G-PLC unit 31 of the slave station 3 that has received the simultaneous closing signal starts the timer when transmitting the control signal, and whether a predetermined time has elapsed since the control signal was transmitted by countdown by the timer It is determined whether or not (step S105). The reason why it is determined whether or not a predetermined time has elapsed since the transmission of the control signal is to ensure a retreat time for closing the gate (a predetermined condition for closing the gate).

  The predetermined time counted by the timer may be a predetermined fixed time (for example, 5 minutes). Moreover, it may be set based on J-ALERT information such as the arrival time of a tsunami. Further, the time set by the timer may be set to a different value depending on the gate.

In the present embodiment, as a predetermined condition for ensuring the evacuation time for closing the gate, a case has been shown in which the elapse of a predetermined time is confirmed after transmitting the activation information for activation control of the safety known facility. The predetermined condition for securing the evacuation time is not limited to this. The predetermined condition may include, for example, a condition that no person or vehicle that hinders the closing of the gate is detected by a television camera, a sensor, or the like.
The SAT-G-PLC unit 31 receives control information for controlling the closing of a gate (a sluice or a landlock) when a predetermined time has elapsed, on the machine-side operation panel (51, 61) that operates the gate. ) (Step S106).

<Second automatic gate operation processing>
Next, the second automatic gate operation process will be described with reference to FIG. FIG. 7 is a sequence diagram illustrating an example of a second automatic gate operation process according to the first embodiment.
In FIG. 7, when the slave station and the gate control device are installed apart from each other, the second automatic gate operation processing is to separate the simultaneous closure control signal from the slave station to the gate control device, the notification signal and the closure signal. It is a method to transmit without. In addition, in this embodiment, since it implements by the gate control apparatus 6, the same code | symbol shall be used.

  The SAT-G-PLC unit 31 described in FIG. 7 is realized by the SAT-PLC function of the satellite communication control device 31 described in FIG. Further, the G-PLC unit 602 described in FIG. 7 is realized by the G-PLC function of the remote unit side panel control device 32 and the G-PLC unit 602 of the gate control device 6-n described in FIG. .

  Although one gate control device 6 is illustrated in FIG. 7, a plurality of gate control devices 6 are arranged. The other gate control device 6 is not shown. It is assumed that the same processing is performed in each gate control device 6.

In FIG. 7, first, the control station 1 acquires J-ALERT transmitted via a communication satellite from the fire department 100 exemplified as a predetermined government office (step S201).
The control station 1 that has received the J-ALERT transmits a simultaneous closing signal to the SAT-G-PLC unit 31 of the slave station 3 (step S202). Furthermore, it transmits with respect to the control center 2 which manages the sub_station | mobile_unit 3 which transmitted the simultaneous closing signal (step S203). The control station 2 that has acquired the simultaneous closing signal may display information on the slave station 3 to which the simultaneous closing signal is transmitted and information on the gates (water gates / land anchors) closed by the simultaneous closing signal on the touch monitor 232 or the like.

The SAT-G-PLC unit 31 of the slave station 3 (slave station 1) that has acquired the simultaneous notification command transmits a simultaneous closing instruction based on the simultaneous notification command to the G-PLC unit 602 of the gate control device 6 ( Step S204).
The G-PLC unit 602 starts a timer for determining whether or not a predetermined time has elapsed after transmitting a control signal for starting the safety well-known facility managed by the gate control device 6, and the predetermined time has elapsed. Whether or not (step S206).
When the G-PLC unit 602 of the gate control device 6 determines that a predetermined time has elapsed, the G-PLC unit 602 transmits a control instruction to close the gate to be closed (water gate or land anchor) to each gate (step S207).

  As described above, the slave station 3 in which the SAT-G-PLC unit 31 in FIG. 7 is arranged is connected to the gate control device 6 in which the G-PLC unit 602 is arranged by using an optical cable or the like. Has been. Therefore, there is a possibility that the SAT-G-PLC unit 31 and the G-PLC unit 602 may be unable to communicate due to damage to the optical cable in the event of a disaster. In FIG. 7, the G-PLC unit 602, which is a gate operation device, acquires a simultaneous notification instruction from the SAT-G-PLC unit 31 as warning information based on emergency information transmitted via a communication satellite, and performs simultaneous notification. Based on the instruction, a control signal for starting the safety well-known facility is transmitted, and it is determined whether or not a predetermined time has elapsed since the transmission of the control signal for starting the safety well-known facility. When a predetermined time has elapsed, a control instruction for closing the gate is transmitted to each gate. Therefore, for example, even when trouble such as communication failure occurs in the satellite communication between the control station 1 and the slave station 3 or the optical communication between the slave station 3 and the gate control device 6, the gate control device 6 is retracted. You can secure the time and control the gate.

  Next, device information collection processing will be described with reference to FIG. FIG. 8 is a sequence diagram illustrating an example of a device information collection process according to the first embodiment.

  In FIG. 8, the G-PLC unit 602 of the gate control device 6 includes information on the water level measured by the water level meter, audio information collected by the sound collecting microphone, video information taken by the TV camera, and opening / closing status installed on the gate. And device information such as sensor information for detecting an obstacle for opening and closing is collected (step S301). The device information may include information on a failure of a device such as a gate. The G-PLC unit 602 transmits the collected device information to the SAT-G-PLC unit 31 of the slave station 3 (step S302).

  The SAT-G-PLC unit 31 that has acquired the device information makes a transmission determination as to whether or not the collected device information should be transmitted to the control station 1 (step S303). Is transmitted to the control station 1 (step S304). For example, the SAT-G-PLC unit 31 determines whether there is information that satisfies a predetermined transmission condition in the collected device information. As the transmission condition, for example, whether the time when the device information is collected is in a predetermined time zone, whether the transmission timing for transmitting the device information is a predetermined timing, or the collected device information is of a predetermined type Or not. Whether or not it is a predetermined timing is, for example, whether or not a predetermined time has been reached when the collected device information is transmitted at a predetermined time by batch processing. Further, whether or not the device information is a predetermined type is, for example, whether or not the device information is information related to a failure of the device.

The control station 1 that has acquired the device information from the SAT-G-PLC unit 31 performs a display process for displaying the acquired device information (step S305). The device information can be displayed, for example, on the monitor 127 of the monitoring terminal control device 126 described with reference to FIG. The control station 1 transmits the acquired device information to the control station 2 (step S306).
The control center 2 that has acquired the device information from the control station 1 performs a display process for displaying the acquired device information (step S307). The device information can be displayed, for example, on the monitor 223 of the monitoring terminal control device 222 described with reference to FIG.

In the present embodiment, the control station 1, the control station 2 and the slave station 3 can collect device information such as device failures and gate conditions, so that the gate can be controlled safely and reliably from a remote location. Is possible. For example, when an instruction to automatically close the gate is transmitted in the automatic gate operation process described in FIGS. 6 to 7, confirmation of the gate that could not be closed automatically, the situation of the gate, the situation of the water level, etc. are controlled. It can be monitored at station 1 or control station 2. Further, the control station 1 may be configured to exclude a predetermined gate from the target of simultaneous closure depending on the situation of the gate (for example, a situation where a device that opens and closes the gate is out of order).
Based on the collected device information, the control station 1 or the control station 2 may execute processing for manually operating the gate.

<First manual gate operation process>
Next, the first manual gate operation process will be described with reference to FIG. FIG. 9 is a sequence diagram illustrating an example of a first manual gate operation process according to the first embodiment.
The first manual gate operation process is a process of individually setting the gates to be closed in the control station 1 and transmitting control commands such as closing to the gates set from the control station 1 all at once.

  In FIG. 9, the control station 1 transmits simultaneously a closing instruction for closing the gates to be closed to the SAT-G-PLC unit 31 of the slave station 3 (step S401). The closing command transmitted from the control station 1 to the slave station 3 is transmitted, for example, when the operator operates the monitoring console 13 described with reference to FIG. By using the simultaneous transmission of the control station 1, it becomes possible to simultaneously transmit the closing command to the manually designated slave stations 1.

  The control station 1 transmits the information on the transmitted closing instruction to the control station 2 (step S402). The control center 2 that has acquired the information on the closing command from the control station 1 may display information on the gate to be closed. The SAT-G-PLC unit 31 that has received the closing command from the control station 1 outputs a control instruction for closing each gate (step S403).

  In this embodiment, the gate can be automatically closed based on J-ALERT, and the gate can be manually operated from the control station 1. For example, the gates can be individually closed, or the gates that are simultaneously closed can be individually closed. Allows manual operation of the gate when it is opened or when the gates are opened all at once by releasing the tsunami warning. In addition, you may make it operate a gate manually based on apparatus information demonstrated in FIG.

<Second manual gate operation processing>
Next, the second manual gate operation process will be described with reference to FIG. FIG. 10 is a sequence diagram illustrating an example of a second manual gate operation process according to the first embodiment.
The second manual gate operation process is a process in which the gates to be closed are individually set in the control station 2 and commands for operations such as closing are simultaneously transmitted to the gates set from the control station 2.

In FIG. 10, the control station 2 transmits a closing command for closing the gate to be closed to the control station 1 (step S501). The closing command is transmitted, for example, when the operator operates the monitoring console 23 in FIG.
Based on the closing command acquired from the control station 2, the control station 1 transmits the closing command all at once to the SAT-G-PLC unit 31 of the slave station 3 that manages the gate to be closed (step S502). By transmitting the closing instruction transmitted from the control station 2 to the slave station 3 via the control station 1, it becomes possible to centrally manage the situation of the gate in the control station 1. Moreover, since it is not necessary to manage the control of each gate in the control station 2, the load on the control station 2 can be reduced.
The SAT-G-PLC unit 31 that has received the closing command from the control station 1 outputs a control instruction for closing each gate.
The control center 2 may display information on the gate to be closed on the monitor 127 or the like.

In the present embodiment, the gate can be automatically closed based on J-ALERT and can also be operated manually. For example, once closed, the gate can be individually opened and closed. In addition, when the gate is opened by releasing the tsunami warning, manual operation is possible from the control station. In addition, you may make it operate a gate manually based on apparatus information demonstrated in FIG.
The control station 2 has a limited area to be managed with respect to the control station 1 and is often close to the slave station 3 in terms of distance. Therefore, an administrator who manages the control station 2 can easily deal with, for example, the slave station 3 in which a problem has occurred, as compared with an administrator who manages the control station 1. Since the gate can be manually operated from the control station 2, it is possible to easily manage the gate for each region.

<Second Embodiment>
Next, a second embodiment will be described with reference to FIG.
In the first embodiment, a simultaneous closing command from the control station 1 to each slave station 3 is transmitted when receiving the J-ALART, and on the slave station 3 side, after starting a safety well-known facility and performing an alarm, The gate was controlled to close. On the other hand, in 2nd Embodiment, a command is transmitted from the control station 1 divided into a simultaneous alerting | reporting command and a closure command. FIG. 8 is a sequence diagram illustrating an example of an automatic gate operation process according to the second embodiment.
The function of the control station 1 described in FIG. 11 can be realized by the central simultaneous command monitoring device 115 described in FIG. Further, in FIG. 11, one control station 1 is shown, but a plurality of control stations 1 may be arranged. When a plurality of control stations 1 are arranged, the communication path can be duplicated in the reception of J-ALERT and the transmission / reception with the slave station 3 and the control station 2, so the control station 1, the control station 2, and the slave station Thus, the availability can be improved in the entire system 3.

  In FIG. 11, first, the control station 1 acquires J-ALERT transmitted from the fire department 100 exemplified as a predetermined government office via a communication satellite (step S601). The control station 1 that has acquired the J-ALERT transmits a simultaneous notification command to the SAT-G-PLC unit 31 of the slave station 3 (step S602), and the control station 2 that manages the slave station 3 that has transmitted the simultaneous notification command. (Step S603). In addition, the process which transmits simultaneous alerting | reporting instruction | command is the same as the process demonstrated in FIG.

  The control station 2 that has acquired the simultaneous notification command may display information on the slave station 3 to which the simultaneous notification command has been transmitted and information on the gates (water gates / landers) that are closed by the simultaneous closure command on the touch monitor 232. Is the same as FIG.

  The SAT-G-PLC unit 31 of the slave station 3 that has acquired the simultaneous notification command transmits a control signal for starting the safety well-known facility (step S604). The slave station 3 can notify the vicinity of the gate that the gate is closed by activating the safety well-known facility.

The control station 1 starts the timer after transmitting the simultaneous notification command to the SAT-G-PLC unit 31 of the slave station 3, and whether or not a predetermined time has elapsed after transmitting the simultaneous notification command by the countdown of the timer Is determined (step S605). The process for determining whether or not a predetermined time has elapsed due to the countdown by the timer is the same as the process described with reference to FIG.
When the control station 1 determines that a predetermined time has elapsed, the control station 1 transmits a control command to close the gate (sluice gate or land anchor) to be closed to the SAT-G-PLC unit 31 (step S606). The command is transmitted to the control station 2 that manages the slave station 3 (step S607). By transmitting the simultaneous notification command and the control command to the control station 2, it is possible to monitor the transmission of the simultaneous notification command and the control command from the control station 1 to the slave station 3.

  The SAT-G-PLC unit 31 transmits a control instruction to close the gate (water gate or landlock) to be closed to each gate (step S608). That is, the gate is closed after a predetermined time has elapsed since the safety well-known facility was activated.

  In FIG. 11, when the control station 1 receives J-ALERT information as warning information based on emergency information via a communication satellite, the control station 1 transmits a simultaneous notification command to the slave station 3. It is determined whether or not a predetermined time has passed as a result of transmitting the simultaneous notification command, and if a predetermined time has passed, a control command for closing the gate is issued when the predetermined time has passed. By transmitting to 3, it is possible to control the gate while securing a retreat time for closing the gate.

  The central simultaneous command monitoring device 115 of the control station 1 described with reference to FIG. 2 may acquire and monitor device information such as the gate closing status in the slave station 3 that has output the simultaneous notification command. In addition to information on the opening / closing status of the gate, the device information may include, for example, the value of a water level meter installed on the gate, the sound collected by the microphone, and the video taken by the television camera. In addition, failure information notifying the failure of the control center 2 or the slave station 3 may be included. In the present embodiment, information on the gate whether or not the gate is properly closed is particularly important. For example, if the gate that should be closed by the slave station 3 has not been closed after the simultaneous notification command is transmitted, water may enter the inside of the levee due to an increase in water such as a tsunami. The central simultaneous command monitoring device 115 can determine whether or not the gate has been closed by monitoring information such as a proximity sensor installed on the gate through the slave station 3. The central simultaneous command monitoring device 115 transmits the acquired device information and monitoring result to the monitoring terminal 12, for example. The monitoring terminal 12 may display the transmitted device information and monitoring result on the monitor 127.

<Third Embodiment>
Next, a third embodiment will be described with reference to FIG.
In the third embodiment, in the automatic gate operation processing of the first embodiment described with reference to FIGS. 6 to 7, the control station 1 performs retry processing for signal transmission of the simultaneous closing instruction. FIG. 12 is a sequence diagram illustrating an example of signal transmission retry processing in the control station according to the third embodiment.

  In FIG. 12, the control station 1 receives J-ALERT (step S701). J-ALERT shall be transmitted via the communication satellite from the fire department 100 illustrated as a predetermined government office. The control station 1 that has received the J-ALERT provides activation information for activating the gate to the slave stations 3-1 to 30n that are the slave stations managed by the control station 1 based on the contents of the J-ALERT. Transmit (step S702-1 to step S702-n). The activation information includes specification information for specifying the gate to be operated and operation information indicating the operation content for the gate to be operated. In the present embodiment, as specific information, a case where a simultaneous operation for specifying all gates as an operation target is performed is exemplified, and as an operation content, a case where an operation for closing a gate is performed is illustrated. That is, it is assumed that the control station 1 transmits a simultaneous closing signal that simultaneously closes the gates as activation information. The control station 1 simultaneously transmits a simultaneous closing signal to each of the slave stations (3-1 to 3-n) using simultaneous transmission of satellite communication. The control station 1 starts a timer when it transmits a simultaneous closing signal (step S702-0). This timer is a time measuring means for measuring a timeout described later. The simultaneous closing signal is transmitted via satellite communication using the antenna device 10 described in FIG. In FIG. 12, description of communication with the control station 2 having a communication frequency different from that of the simultaneous closing signal transmitted to the slave station 3 is omitted. Details of the simultaneous closing signal will be described later with reference to FIG.

  Whether the remote monitoring control device 30 of each slave station (3-1 to 3-n) that has received the simultaneous closing signal identifies the gate that it operates as the operation target in the specific information included in the simultaneous closing signal Judge whether or not. Each slave station ignores (discards) the received simultaneous closing signal as it is when the gate operated by itself is not specified as the operation target in the specific information. On the other hand, when the gate operated by the remote monitoring control device 30 of each slave station is specified as the operation target in the specific information, the remote monitoring control device 30 performs start (close) control of the gate (step S703-1). In step S703-2), an activation response signal is transmitted to the control station 1 that transmitted the activation information (step S704-1 to step S704-n). In FIG. 12, the slave station 3-1 and the slave station 3-n transmit the activation response signal to the control station 1, and the slave station 3-2 indicates that the activation response signal is not transmitted to the control station 1. ing.

  The slave station 3-n has the function of the remote monitoring control device 30 connected to the gate control device 6-1 and the gate control device 6-2 described with reference to FIG. Explaining the above operation in detail, when the remote monitoring control device 30 receives the simultaneous closing signal, the remote control device 30 operates the gate control device 6-1 and the gate control device 6-2 on the specific information included in the simultaneous closing signal. Check if it has been identified. When the remote monitoring control device 30 confirms that the gate operated by the gate control device 6-1 and the gate control device 6-2 is specified in the specific information, the gate control device 6-1 and the gate control device 6- 2 transmits the activation information for activating the broadcasting equipment and the operation information for operating the gate (step S703-1 to step S703-2), and transmits the activation response signal to the control station 1 (step S704-1). -Step S704-n). The internal functions of the slave station 3-1 and the slave station 3-2 are the same as those of the slave station 3-n, and are not described here.

  In FIG. 12, the slave station 3-2 does not transmit an activation response signal to the control station 1 (illustrated by “(no response signal)”). It is assumed that the specific information included in the simultaneous closing signal specifies the gate operated by the slave station 3-2. After transmitting the simultaneous closing signal, the control station 1 can estimate that some trouble has occurred in the satellite communication with the slave station that cannot confirm the reception of the activation response signal even after a predetermined time has elapsed. The satellite communication troubles include, for example, troubles that need to be repaired or repaired due to malfunctions in hardware or software, while temporary troubles caused by weather conditions such as heavy rain or lightning strikes. The control station 1 retransmits the simultaneous closing signal (retry transmission) when a predetermined time has elapsed after transmitting the simultaneous closing signal (step S705, step S706, etc.). By retransmitting the simultaneous closing signal, the control station 1 can transmit the simultaneous closing signal to the slave stations that could not perform satellite communication due to a temporary trouble.

  The control station 1 performs update to delete the gate operated by the slave station that has transmitted the activation response signal for the simultaneous closing signal transmitted first from the specific information of the simultaneous closing signal to be retransmitted. Therefore, the slave station that has transmitted the activation response signal for the simultaneous closing signal transmitted first ignores the simultaneous closing signal based on the specific information of the retransmitted simultaneous closing signal, thereby reducing the load of signal processing.

  The control station 1 retransmits the broadcast transmission signal in the process of step S706 (second transmission) when a predetermined time has elapsed after retransmitting the broadcast transmission signal in the process of step S705 (first retry transmission). Retry transmission). Also in the second retry transmission, the gate operated by the slave station that has transmitted the activation response signal for the first retry transmission is deleted from the specific information. When the control station 1 receives the activation response signal from all the slave stations, the control station 1 ends the retry transmission. By this retry transmission process, it becomes possible to transmit a simultaneous closing signal to all the slave stations that have been temporarily unable to perform satellite communication. On the other hand, the retry transmission is also terminated when a preset timeout time has elapsed in the timer that was started when the simultaneous closing signal was transmitted for the first time (step S707). The timeout time can be set arbitrarily. For example, in a weather situation where heavy rain or lightning strikes, it may be changed as appropriate according to the weather situation. For a slave station that cannot perform satellite communication even after the timeout time elapses, there may be a cause such as a hardware failure. The control station 1 may display the slave stations that have failed to communicate on the monitor 127 of FIG. By terminating the retry transmission within the timeout time, it is possible to reduce useless satellite communication.

  The time interval until the retry transmission and the number of retries are arbitrary. In FIG. 12, the control station 1 is one station and the satellite communication line is one line. However, as described in FIG. 1, when there are a plurality of control stations 1, or the satellite communication line is When duplexed, the retry transmission method described above may be changed.

  Next, update of the specific information in retry transmission of the simultaneous closing signal will be described with reference to FIG. FIG. 13 is a diagram illustrating an example of the update of the operation signal transmitted in the retry operation of the gate operation according to the embodiment. 13A to 13C show the contents of the simultaneous signal according to the number of retries.

  FIG. 13A shows information of a simultaneous closing signal transmitted at the first transmission. The simultaneous closing signal includes specific information for specifying the gate to be operated and operation information indicating the operation content for the gate to be operated. In FIG. 13, bits corresponding to the gates of n machines from gate 63-1 to gate 63-n are assigned to the specific information, and the gate is specified by a bit unit flag of “0” and “1”. For example, in (A), “1” is input to all the bits corresponding to the gates 63-1 to 63-n, and all the gates of the gates 63-1 to 63-n are specified. It is shown that. The operation information includes information for closing the gate. That is, the simultaneous closing signal is a gate control signal that causes the gate specified by the operation information to perform the operation of closing the gate specified by the operation information. One slave station operates multiple gates. Therefore, the slave station that has received the simultaneous closing signal stores in advance a bit corresponding to the gate operated by itself. When the bit stored in advance is included in the specific information, the slave station transmits an operation response signal.

  In this embodiment, the slave station may send an operation response signal to the control station 1 immediately after receiving the simultaneous closing signal specifying the gate operated by the slave station. A response signal may be transmitted to the control station 1. Further, the slave station may transmit an operation response signal for the gate that has detected the closing operation. Since the control station 1 retransmits the simultaneous closing signal to the gates that have not received the operation response signal, the operation response signal should include information on whether or not the closing operation has been detected from each gate. Is desirable. However, since the slave station can independently retry closing the gate as described later, the operation response signal may include a gate that has not received the operation response signal.

  FIG. 13B shows information of the simultaneous closing signal transmitted at the second transmission (first retry transmission (retransmission)). FIG. 13B shows that the operation response signal is not received for the gate 63-2 in response to the simultaneous closing signal transmitted in the first transmission, and the gate 63-2 is specified in the second simultaneous closing signal transmitted. Indicates that it is specified.

  FIG. 13C shows information of the simultaneous closing signal transmitted at the nth transmission (n−1 retry transmission). FIG. 13C shows that the operation response signal is not transmitted for the gate 63-2 with respect to the simultaneous closing signal transmitted in the second and subsequent transmissions, and the gate 63-2 is specified by the specific information. Show. That is, the control station 1 indicates that retry transmission is repeated until an operation response signal for the gate 63-2 is received.

  In the specific information in FIG. 13, the case where the gate is specified by setting a flag of 1 or 0 in bit units for each gate is shown, but the data format of the specific information is arbitrary. For example, the gate may be specified by information other than the bit unit flag. For example, the identification information may include identification information for identifying the gate. Moreover, although the case where one simultaneous closing signal is transmitted once was shown in this embodiment, the simultaneous closing signal may be a combination of a plurality of signals or a signal transmitted a plurality of times. Good.

<Fourth Embodiment>
Next, a fourth embodiment will be described with reference to FIG.
In the fourth embodiment, an operation in the case of performing retry processing when the control station transmits signals to the control station simultaneously will be described. FIG. 14 is a sequence diagram illustrating another example of signal transmission retry processing in the control station according to the fourth embodiment. In FIG. 14, description of communication with the slave station 3 having a communication frequency different from that of the simultaneous closing signal transmitted to the control station 2 is omitted.

  In FIG. 14, the control station 1 receives J-ALERT as in FIG. 12 (step S801). The control station 1 that has received the J-ALERT transmits predetermined information all at once to the control stations 2-1 to 2-n managed by the control station 1 based on the contents of the J-ALERT (step S802-1). -Step S802-n). The transmission signal includes specification information for specifying the control station and transmission information indicating the content of the information to be transmitted. In the present embodiment, it is assumed that all control stations managed by the control station 1 are specified as the specific information, and text information indicating that a manual operation for closing the gate is performed as the operation content. The control station 1 starts a timer when transmitting a simultaneous transmission signal (step S802-0). The timer is a time measuring means for measuring timeout as in FIG. The simultaneous transmission signal is transmitted through satellite communication using the antenna device 10 described in FIG.

  Each control station (2-1 to 2-n) that has received the broadcast signal determines whether or not itself is specified in the specific information included in the broadcast signal. Each control station ignores the received broadcast signal as it is when it is not specified in the specific information. On the other hand, when each control station is specified in the specific information, the control station notifies the worker to manually operate the closing of the gate, and also sends the broadcast signal to the control station 1 that has transmitted the simultaneous transmission signal. A response signal is transmitted (steps S803-1 to S803-n). In FIG. 14, the control station 2-1 and the control station 2-n transmit a response signal to the control station 1, and the control station 2-2 indicates that the response signal is not transmitted to the control station 1. .

  After transmitting the simultaneous transmission signal, the control station 1 can estimate that some trouble has occurred in the satellite communication with the control station where reception of the response signal cannot be confirmed even after a predetermined time has elapsed. As described with reference to FIG. 12, the satellite communication troubles include troubles that require repair or repair and temporary troubles. The control station 1 retransmits the broadcast transmission signal (retry transmission) when a predetermined time has elapsed after transmitting the broadcast transmission signal (step S804). By retransmitting the simultaneous transmission signal, the control station 1 can transmit the simultaneous closing signal to the control station where satellite communication could not be performed due to a temporary trouble.

  The control station 1 performs an update to delete the control station that has transmitted the response signal for the broadcast signal transmitted first from the specific information of the broadcast signal to be retransmitted in the process of step S804. Therefore, the control station (for example, the control station 2-1) that has transmitted a response signal to the broadcast signal that is transmitted first ignores the retransmitted broadcast signal based on the specific information, thereby reducing the signal processing load. It becomes lighter.

  The control station 1 retransmits the simultaneous transmission signal (second retry transmission) when a predetermined time has elapsed after retransmitting the simultaneous transmission signal (first retry transmission) (step S805). Also in the second retry transmission, the control station that transmitted the response signal for the first retry transmission is updated to be deleted from the specific information. When the control station 1 receives response signals from all control stations, the control station 1 ends the retry transmission. By this retry transmission process, it becomes possible to transmit a simultaneous transmission signal to all the control stations where satellite communication was temporarily impossible. On the other hand, the retry transmission is also terminated when a preset timeout time has elapsed in the timer that was started when the simultaneous transmission signal was first transmitted (step S806). The timeout time can be set arbitrarily. The control station 1 may display on the monitor 127 shown in FIG. By terminating the retry transmission within the timeout time, it is possible to reduce useless satellite communication.

  Next, a retry process in the slave station (slave station system) that has received the simultaneous closing core will be described with reference to FIG. FIG. 15 is a sequence diagram illustrating an example of a retry process for closing a gate in a slave station according to the fourth embodiment. The slave station shown in FIG. 15 has the remote monitoring control device 30 and the gate control device 6 described in FIG. In FIG. 15, the slave station illustrates the case where the gate control device 6 has the gate control device 6-1 and the gate control device 6-2. The gate control device 6-1 and the gate control device 6-2 have a remote device side panel 60, a broadcast control panel 62, and a device side operation panel 61, respectively. In the gate control device 6-1, the remote unit side panel 60, the broadcast control panel 62, and the unit side operation panel 61 are not shown.

  In FIG. 15, the remote monitoring control device 30 receives a simultaneous closing signal from the control station 1 (not shown) (step S901). The remote monitoring control device 30 that has received the simultaneous closing signal is informed of the safety to the remote control side panel 60 of the gate control device 6-1 and the gate control device 6-2 that it manages based on the content of the simultaneous closing signal. An activation signal for activating the equipment is transmitted (step S902-1 to step S902-2). It is assumed that the activation signal includes the safety well-known facility to be activated and the content of information to be provided.

  The remote unit side panel 60 that has received the activation signal from the remote monitoring control device 30 transmits an activation signal for activating the safety well-known facility to the broadcast control panel 62 (step S903). The safety well-known facility is, for example, the speaker 56, the sound collecting microphone 57, the siren sound collecting microphone 58, the electric light display board 59, or the like described in FIG. The activation signal transmitted by the remote unit side panel 60 includes, for example, information specifying the content of the sound output from the speaker 56 and character information displayed on the electric display panel 59.

  The remote monitoring control device 30 confirms that a predetermined time has elapsed after transmitting the activation signal, and opens the gate to the remote unit side panel 60 of the gate control device 6-1 and the gate control device 6-2. A first closing signal for closing is transmitted (step S904-1 to step S904-2). The closing signal transmitted by the remote monitoring control device 30 includes, for example, identification information for identifying the gate to be closed (machine-side operation panel 61) and transmission information indicating the closing operation for the gate. The specific information may include the gate control device 6-1. In the process of step S904, the remote monitoring control device 30 can include a flag indicating a predetermined level in the closing signal. The flag level will be described later. The remote monitoring control device 30 starts a timer when a closing signal is transmitted (step S904-0). This timer is a time measuring means for measuring a timeout described later.

  The remote unit side panel 60 that has received the closing signal transmits a first closing signal to the machine side operation panel 61 (step S905). The closing signal transmitted by the remote unit side panel 60 includes information indicating a predetermined level transmitted from the remote monitoring control device 30. Information indicating the predetermined level is added, for example, by adding a flag to a predetermined bit of the closing signal according to the number of transmissions. Here, the level information included in the closing signal will be described.

  The level information included in the closing signal is a level that is changed depending on the urgency of opening and closing the gate, the failure level of the gate, and the like. The use of the level information is arbitrary. In this embodiment, the case where the means for closing the gate is changed by changing the level is illustrated.

  As described with reference to FIG. 4, the machine-side operation panel 61 can use three closing means of motor driving, pneumatic driving, and driving using gravity in order to close the gate. The machine-side operation panel 61 changes the closing means according to the level information corresponding to the number of times of closing signal transmission. The number of transmissions of the closing signal is updated by retransmission of the closing signal. The closing signal is retransmitted when some trouble occurs in closing the gate. For example, when the gate is in a closing operation even after a predetermined time has elapsed since the closing signal was transmitted, the machine side operation panel 61 sends a response signal indicating that the closing operation is in progress to the remote monitoring control device 30. Transmit (step S906-1). On the other hand, if the gate is not in the closing operation even after a predetermined time has elapsed since the closing signal was transmitted, the machine-side operation panel 61 does not transmit to the remote monitoring control device 30 that the closing operation is in progress. If it cannot be received that the closing operation is being performed, it is estimated that a trouble has occurred in closing the gate, and the remote monitoring control device 30 retransmits the closing signal (step S907). The remote monitoring control device 30 retransmits (retrys) the closing signal whose level has been changed according to the number of transmissions. The remote monitoring control device 30 repeats retransmission until it detects that the gate is being closed.

  For example, in the process of step S904, the remote monitoring control device 30 transmits the first closing signal including the first level flag to the remote unit side panel 60 (step S905). When receiving the first closing signal from the remote monitoring control device 30, the machine-side operation panel 61 closes the gate using motor drive based on the importance of the first level. The first level is information when the gate can be normally closed.

  The machine side operation panel 61 confirms whether or not the gate is in the closing operation after starting the closing of the gate, and if it is confirmed that the gate is in the closing operation, Send a response signal. That the gate is being closed can be detected by, for example, a sensor that detects the position of the gate. For example, when the gate gradually moves from the open state to the closed state, the sensor that detects the position of the gate is a movement start detection sensor that detects that the gate has started moving from the open state, and the gate has been moved to the closed state. It may be a movement completion detection sensor that detects this, or a combination of a movement start detection sensor and a movement completion detection sensor. When the sensor for detecting the position of the gate is a combination of the movement start detection sensor and the movement completion detection sensor, the machine-side operation panel 61 detects that the movement start detection sensor is within the first time after starting the gate closing. The movement is detected, and when the movement completion detection sensor detects the movement of the gate within a second time longer than the first time after the start of the closing of the gate, it is detected that the gate is being closed. It may be. The remote machine side panel 60 transmits the response signal received from the machine side operation panel 61 to the remote monitoring control device 30.

  On the other hand, the machine-side operation panel 61 does not transmit a response signal to the remote machine-side panel 60 if it cannot be confirmed that the gate is being closed after the gate is closed. FIG. 15 shows that the machine-side operation panel 61 of the gate control device 6-2 does not transmit a response signal.

  If the remote monitoring control device 30 does not receive a closing operation signal from the machine-side operation panel 61 even after a predetermined time has elapsed after transmitting the first closing signal, the remote monitoring control device 30 includes a second level flag. The closing signal (first retry signal) is transmitted to the remote unit side panel 60 (step S907), and the remote unit side panel 60 transmits the second closing signal including the second level flag to the apparatus side operation panel 61. (Step S908). When the machine side operation panel 61 receives the second closing signal from the remote machine side board 60, the machine side operation panel 61 uses the motor drive again to close the gate based on the second level (motor drive retry). For example, in the case of a minor trouble such as rust or the like adhering to the gate and a large opening / closing load, the gate may operate by driving the motor again. The second level is information for dealing with troubles of a level that can be solved by motor drive retry.

  The second closing signal may be transmitted at different time intervals for each gate after transmitting the first closing signal. The timing at which it can be detected that the gate is closing is sometimes different for each gate, such as the position of the sensor, the speed at which the gate closes, or the movement distance of the gate until it can be detected that the gate is closing. is there. Therefore, it is desirable that the second closing signal is appropriately set for each gate according to the timing at which it can be detected that the gate is being closed. The same applies to the third closing signal described below or the closing signal transmitted thereafter.

  The remote monitoring control device 30 performs update to delete the gate (machine side operation panel 61) operated by the gate control system that has transmitted the response signal to the first transmitted closing signal from the specific information of the closing signal to be retransmitted. Therefore, the gate control system that has transmitted a response signal to the first transmitted closing signal ignores the closing signal based on the specific information of the retransmitted closing signal, thereby reducing the load of signal processing.

  If the remote monitoring control device 30 does not receive a closing operation signal from the machine-side operation panel 61 even after a predetermined time has elapsed after transmitting the second closing signal, the remote monitoring control device 30 includes a third level flag. A closing signal (second retry signal) is transmitted to the remote unit side panel 60 (step S909), and the remote unit side panel 60 transmits a third closing signal including a third level flag to the machine side operation panel 61. (Step S910). In the third closing signal transmission, the gate operated by the gate control system that has transmitted a response signal to the second closing signal transmission is updated to be deleted from the specific information.

  When the machine side operation panel 61 receives a third closing signal from the remote machine side panel 60, the machine side operation panel 61 closes the gate using pneumatic drive based on the third level. Pneumatic drive may be used in combination with motor drive. For example, in the case of a moderate trouble such as a motor failure, the gate is closed by a method that is an alternative to motor driving. In this embodiment, a case where pneumatic driving is used instead of motor driving is illustrated. The third level is information for dealing with troubles at a level where the gate can be closed by pneumatic driving instead of motor driving.

  If the remote monitoring control device 30 does not receive a closing operation signal from the machine-side operation panel 61 even after a predetermined time has elapsed after transmitting the third closing signal, the remote monitoring control device 30 includes the fourth level flag. A closing signal (a third retry signal) is transmitted to the remote unit side panel 60 (step S911), and the remote unit side panel 60 transmits a fourth closing signal including a fourth level flag to the machine side operation panel 61. (Step S912). Also in the fourth closing signal transmission, the gate operated by the gate control system that has transmitted a response signal to the third closing signal transmission is updated to be deleted from the specific information.

  When the machine side operation panel 61 receives the fourth closing signal from the remote machine side board 60, the machine side operation panel 61 closes the gate using the drive using gravity based on the fourth level. Driving using gravity may be used in combination with motor driving or pneumatic driving. For example, in the case of a trouble such as a motor or cylinder actuator failure, the gate is closed by a method that is an alternative to actuator driving. In this embodiment, the case where the dead weight of a gate is used instead of actuator drive is illustrated. The fourth level is information for dealing with troubles at a level where the gate can be closed by its own weight instead of driving the actuator.

  When receiving the response signals from all the gate control systems, the remote monitoring control device 30 ends the transmission of the closing signal (step S914). The remote monitoring control device 30 enables the operation of the gate according to the level of trouble by transmitting a closing signal in which the flag indicating importance is changed.

  On the other hand, the transmission of the closing signal is also terminated when a preset timeout time has elapsed in the timer that was started when the closing signal was first transmitted. The timeout time can be set arbitrarily. For a gate control system that does not transmit a response signal even after the time-out period elapses, there may be a cause such as a gate failure. The remote monitoring control device 30 may display the gate control system on the monitor 127 of FIG. 1 without transmitting a response signal. By terminating the transmission of the closing signal within the time-out time, useless communication can be reduced.

  In addition, the time interval and frequency | count of transmitting a closure signal are arbitrary. In FIG. 15, the case where there is one remote monitoring control device 30 and two gate control systems has been described, but the configuration of the slave station system is not limited to this.

  In the present embodiment, the case where the gate is closed by means such as a motor drive has been described. However, the means for closing the gate is not limited thereto. For example, means such as switching the power source to a spare storage battery and closing the gate may be used. Also, the level may be other than four levels. Further, in the present embodiment, the case where the means for closing the gate is changed depending on the importance by including the information indicating the level in the closing signal, but the level is, for example, notification information such as broadcast, warning, display, etc. May be used to change

  According to at least one embodiment described above, the control station of the embodiment is the control station of the gate control system that controls the operation of the gate including the control station and the slave station, and includes an information acquisition unit, control information By having the transmitter, it is possible to control the closing of the gate while ensuring the retreat time.

  Although several embodiments of the present invention have been described, these embodiments are presented by way of example and are not intended to limit the scope of the invention. These embodiments can be implemented in various other forms, and various omissions, replacements, and changes can be made without departing from the spirit of the invention. These embodiments and their modifications are included in the scope and gist of the invention, and are also included in the invention described in the claims and the equivalents thereof.

DESCRIPTION OF SYMBOLS 1 ... Control station, 2 ... Control station, 3 ... Slave station 10, 20, 300 ... Antenna apparatus, 11, 21, 30 ... Remote monitoring control apparatus, 12, 22 ... Monitoring terminal, 13, 23 ... Monitoring console, 14, 24 ... Power supply equipment

Claims (20)

The control station of the gate control system that controls the operation of the gate including the control station and the slave station,
An information acquisition unit for acquiring emergency information via satellite communication;
A control station comprising: a control information transmission unit that simultaneously transmits gate control information for controlling the gate to the slave station via the satellite communication based on the emergency information. The control information transmitting unit
Based on the previous emergency information, activation information for activating the notification facility for notifying the closure of the gate is simultaneously transmitted to the slave station via the satellite communication,
The control station according to claim 1, wherein the gate control information is transmitted when a predetermined time has elapsed since the activation information was transmitted. An operation response signal receiving unit for receiving a response signal for the gate control information from the slave station by the satellite communication;
The control information transmission unit transmits the gate control information including specific information for specifying a gate to be closed, and retransmits the gate control information in which the specific information is updated based on the received response signal. The control station according to Item 1.   When the control information transmission unit receives the response signal from all the slave stations that transmitted the gate control information, or when a predetermined time has elapsed after transmitting the gate control information, the gate control The control station according to claim 3, which stops retransmission of information. The gate control system further includes a control station,
The control station, a transmission information transmission unit for transmitting transmission information including specific information for specifying the control station to the control station by simultaneous transmission of the satellite communication,
A response signal receiving unit for receiving a response signal for the transmission information from the control station through the satellite communication;
The control station according to claim 1, wherein the transmission information transmission unit retransmits the transmission information in which the specific information is updated based on the received response signal.   The transmission information transmission unit retransmits the transmission information when the response signal is received from all the control stations that transmitted the transmission information or when a predetermined time has elapsed since the transmission information was transmitted. 6. The control station according to claim 5, wherein transmission is stopped. The slave station of the gate control system that controls the operation of the gate including the control station, the control station, and the slave station,
A receiving unit for receiving the gate control information for controlling the gate transmitted simultaneously from the control station via satellite communication;
A slave station comprising: a gate control unit that, when receiving the gate control information, notifies the closing of the gate and controls the closing of the gate after a predetermined time has elapsed. The gate control unit is
When the receiving unit receives a notification signal for controlling the notification, it notifies the closure of the gate,
The slave station according to claim 7, wherein the gate is controlled to be closed when a predetermined time has elapsed since the acquisition of the notification signal. The receiving unit receives the gate control information for closing control of the gate to be transmitted when a predetermined time has elapsed since the control station transmitted the notification signal,
The slave station according to claim 8, wherein the gate control unit controls the closing of the gate when receiving the gate control information.   The gate control unit transmits a closing signal of a predetermined level for closing the gate to the device that operates the gate, and when not receiving a response to the transmitted closing signal, transmits the closing signal with the updated level. The slave station according to claim 8. A control method of the control station of the gate control system for controlling the operation of the gate including the control station and the slave station,
An information acquisition step of acquiring emergency information via satellite communication;
And a control information transmitting step of simultaneously transmitting gate control information for controlling the gate to the slave station via the satellite communication based on the emergency information. In the control information transmission step,
Based on the previous emergency information, activation information for activating the notification facility for notifying the closure of the gate is simultaneously transmitted to the slave station via the satellite communication,
The control method of the control station according to claim 11, wherein the gate control information is transmitted when a predetermined time has elapsed since the activation information was transmitted. An operation response signal receiving step of receiving a response signal for the gate control information from the slave station by the satellite communication;
In the control information transmission step, the gate control information including specific information specifying a gate to be closed is transmitted, and the gate control information in which the specific information is updated is retransmitted based on the received response signal. Item 12. The control method of the control station according to Item 11.   In the control information transmitting step, when the response signal is received from all the slave stations that transmitted the gate control information, or when a predetermined time has elapsed after transmitting the gate control information, the gate control The control method of the control station according to claim 13, wherein retransmission of information is stopped. The gate control system further includes a control station,
The control method of the control station is a transmission information transmission step of transmitting transmission information including specific information specifying the control station to the control station by simultaneous transmission of the satellite communication;
A response signal receiving step of receiving a response signal for the transmission information from the control station through the satellite communication;
12. The control method of the control station according to claim 11, wherein in the transmission information transmission step, the transmission information in which the specific information is updated is retransmitted based on the received response signal.   In the transmission information transmission step, when the response signal is received from all the control stations that transmitted the transmission information, or when a predetermined time has elapsed since the transmission information was transmitted, the transmission information is retransmitted. The control method of the control station according to claim 15, wherein transmission is stopped. A control method for the slave station of the gate control system for controlling the operation of the gate including the control station, the control station, and the slave station,
A receiving step of receiving gate control information for controlling the gate transmitted from the control station via satellite communication;
A slave station control method comprising: a gate control step of performing notification of closing of the gate when the gate control information is received and controlling the closing of the gate after a predetermined time has elapsed. In the gate control step,
When receiving a notification signal that controls the notification in the receiving step, to inform the closure of the gate,
The slave station control method according to claim 17, wherein closing control of the gate is performed when a predetermined time has elapsed since the acquisition of the notification signal. In the receiving step, receiving the gate control information for closing control of the gate to be transmitted when a predetermined time has elapsed since the control station transmitted the notification signal,
The slave station control method according to claim 18, wherein in the gate control step, the gate is controlled to be closed when the gate control information is received.   In the gate control step, a closing signal of a predetermined level for closing the gate is transmitted to the device for operating the gate, and when the response to the transmitted closing signal is not received, the closing signal with the updated level is transmitted. The method of controlling a slave station according to claim 18.

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