JP3651883B2 - Simultaneous command control device - Google Patents

Description

[0001]
BACKGROUND OF THE INVENTION
The present invention relates to, for example, simultaneous command control in a simultaneous command control device for disaster prevention administrative radio, and more particularly to a simultaneous command control device suitable for selecting an effective simultaneous command line.
[0002]
[Prior art]
The simultaneous command system for disaster prevention administrative radio is equipped with a simultaneous command line for satellites and a simultaneous command line for ground to ensure that information is transmitted from the prefectural office to the terminal station. This system is equipped with a backup line for improved reliability in case the command line is disconnected. In recent years, the number of prefectural governments that have such a system configuration has been increasing.
[0003]
Depending on the status of the command line, the terminal station can be a station that has a general command line for both satellite and ground (hereinafter referred to as satellite + ground station), or a station that has a general command line for satellite only (hereinafter referred to as satellite alone). Station) and a station with a general command line for ground use only (hereinafter referred to as a single ground station). When executed, it was necessary to execute a satellite line simultaneous command and a ground line simultaneous command once, a total of two times. Therefore, the following two methods were used separately according to the satellite + terrestrial channel mode in which a simultaneous command to all stations was completed in one time.
[0004]
In the first method, a setting pattern is provided for each terminal station, the satellite single station and the ground single station are set only for the satellite, and only the ground is set. This is a method of using the + terrestrial line mode. In the second method, the simultaneous command control device transmits a start signal to both the satellite and the ground lines to the terminal station, and the terminal station uses the satellite or the ground signal received first. Is the method. After executing the general command described above, the general command control device checks the operation status, line status, and device status of the terminal based on the terminal station response information (connection confirmation, response confirmation, acceptance confirmation). However, in the case of an abnormality, the simultaneous command was executed again (re-command) only to the abnormal station.
[0005]
[Problems to be solved by the invention]
According to the conventional technology, if the execution result of the simultaneous command is not output, it is impossible to grasp the abnormality of the line status and the device status of the terminal. Therefore, even if an abnormality occurs before starting the simultaneous command, the simultaneous command is not executed. It was an operation that did not get. That is, even if it is executed in anticipation of the possibility of recovery, there are many cases where the command is actually a useless simultaneous command. For this reason, when a line disconnection or a terminal failure occurs, the re-broadcast command (re-command) does not become an effective remedy, and conversely increases the total time of the batch command.
In addition, when simultaneous commands occur in a concentrated manner, high-priority simultaneous commands are processed in advance, but low-priority simultaneous commands wait for a long time, hindering the processing efficiency of the entire system. . In particular, a high priority prioritized simultaneous command has the role of transmitting information fastest and reliably. Conventionally, however, facilities such as satellite and terrestrial duplexing and backup lines have been enhanced, but the selection of detours depending on the situation is inadequate. There was a problem in terms of.
[0006]
The present invention has been made in view of the above circumstances, and constantly monitors the line status (in use / disconnection) of the terminal station and the device status (in use / failure) of the terminal. The purpose is to provide a simultaneous command control device capable of selecting an optimal simultaneous command line (satellite line, ground line, backup line) and executing an efficient and efficient simultaneous command before starting. To do.
[0007]
[Means for Solving the Problems]
In order to achieve the above-mentioned object, the present invention obtains the line status of a terminal station and selects a usable line from the priority condition and detour condition of the satellite / terrestrial line in a simultaneous command control apparatus that controls the simultaneous command. Executed from the relationship between the line status determination means, the line generated by the line status determination means, the device status of the terminal station and the optimum line from the command type, and the relationship between the emergency / normal command mode and the command count And a line selection determining means for confirming the processing, configured to generate a command target station bitmap and activate a simultaneous command.
[0008]
DETAILED DESCRIPTION OF THE INVENTION
Embodiments of the present invention will be described below with reference to FIGS. FIG. 1 is a block diagram showing an embodiment of a simultaneous command system to which the method of the present invention is applied. The general command is started from the general command board 2 or the weather information server 3 centering on the general command control device 1 installed in the prefectural office, and transmits voice / fax / data to the terminal station 17 using the following lines. . Here, the general command stand 2 is an operator console for operating a CRT screen by an operator, and the weather information server 3 is an automatic start simultaneous command device without intervention by an operator.
[0009]
The satellite simultaneous command line takes a route from the satellite terminal device 4 via the communication satellite 12. The terrestrial simultaneous command line takes a route of a multiplex radio line 14 connected to the time division multiplexing apparatus and a single radio line or dedicated line 15 connected to the signal conversion apparatus. The backup line transmits / receives data from the subscriber line or satellite individual communication line 16 connected to the facsimile storage device or voice storage device 7 to a telephone, FAX, or computer other than the terminal station 17 by a circuit switching method. Note that the satellite / terrestrial simultaneous command line includes a control circuit and a voice (FAX) line. Then, the voice is transmitted from the voice input device 8 to the simultaneous command receiving telephone 18, and the FAX is simultaneously transmitted from the simultaneous command transmitting facsimile device 9 and the simultaneous command transmitting FAX adapter device 10 to the simultaneous command receiving FAX adapter device 20. The instruction is transmitted to the instruction receiving facsimile device 19. The data is output from the simultaneous command transmission computer 11 to the simultaneous command reception computer 21.
[0010]
FIG. 2 is a diagram for explaining a data transmission method between the apparatuses. The simultaneous command stand transmits an idle signal to the simultaneous command control device (at intervals of 10 seconds), and the simultaneous command control device that receives this transmits an idle signal to the terminal stations 1 to n (at intervals of 1 to 2 seconds, (In the figure, the satellite terminal station device, the time division multiplexing device, and the signal conversion device are omitted, and are included in the simultaneous command control device.) When the terminal station receives the idle signal, it detects the use state and failure of the terminal device in detection processing A31, adds the data to the simultaneous command response signal, and transmits it to the simultaneous command control device. This detection process A31 is executed from the terminal station 1 to the terminal station n.
[0011]
Next, the simultaneous command control apparatus adds the data of the detection process B32 for detecting the use / disconnection (failure) state of the line and the data of the above-described detection process A31 to the simultaneous command state signal and transmits them to the simultaneous command stand. The simultaneous command base receives the simultaneous command status signal at intervals of 10 seconds, and stores the data of the detection process A31 and the detection process B32 in a table (described in FIG. 3) described later. At this time, if this data is applied to the display of the CRT screen, the operator can check the current line status (in use / disconnected (failure)) and the device status (in use / failure) of the terminal, and according to the situation Rapid judgment is possible. Although the monitoring items can be confirmed by looking at the remote monitoring control device as an alternative device, it is not subject to monitoring until the simultaneous command line and the terminal device usage state specific to the simultaneous command system.
[0012]
Then, when the simultaneous command start 34 occurs, a selection process C33 for selecting an optimal simultaneous command line is executed (described in FIG. 3), and this is added to the line connection activation signal to add a simultaneous command control device, Transmit to terminal station 1 to terminal station n. The terminal station that has activated the simultaneous command adds response information to the simultaneous command response signal in the same manner as the detection processing A31, and the simultaneous command control device transmits data to the simultaneous command status signal in the same manner as the detection processing B32. The general command board receives the general command status signal and displays the response status on the CRT. Hereinafter, although the procedure up to the end is omitted, the detection process A31 and the detection process B32 are always performed not only during idling and during simultaneous command.
[0013]
FIG. 3 is a diagram showing the relationship between data and means for explaining the control method of the present invention. The process proceeds in the order of the line state determination unit 41, the device state determination unit 42, and the line selection determination unit 43. Finally, a command target station bitmap is generated and added to the line connection activation signal, and a simultaneous command is issued. There is to do.
Next, a table required for the above three means will be described. The command target station bitmap is a table in which the target station is divided into a satellite line, a ground line, and a backup line in bit units. The setting pattern table consists of priority settings for satellite / terrestrial channels, setting for whether or not to bypass satellite / terrestrial lines, and setting information for whether or not to bypass backup lines for each terminal station. Is set. Terminal stations are classified as satellite + ground station, satellite single station, and ground single station, and settings such as a station with / without a backup line and satellite / ground priority (when satellite + ground station) are required ( (See FIG. 4).
The line status table of the terminal station is composed of a line in use state and a line disconnection (failure) state for each terminal station, and is data obtained from process B32 in FIG. Also, the terminal station device status table is composed of the status of the terminal device being used and the status of the terminal device failure for each terminal station, and is data obtained from process A31 in FIG. The command type table is a type (speech / fax / data) for transmitting the command content specified when the simultaneous command is started.
[0014]
First, the line state determining means 41 is a means for selecting a satellite line, a terrestrial line, and a backup line by associating the setting pattern table with the data of the line state table of the terminal station as shown in FIG. Here, with reference to FIG. 4, a case where the setting application is satellite + ground station, backup line, and satellite line priority setting will be described. If the satellite line is not in use, the satellite line is used, and if the satellite line is in use, the selection is made to bypass the ground line. If the line is disconnected (failed), a backup line is used. If both the satellite line and the terrestrial line are in use, the satellite line or the backup line is used. This will be described later because it is taken over by the line selection determining means 43 (see FIG. 6).
Next, the device state determination means 42 associates the line generated by the above-described line state determination means 41 with the terminal state device state table and command type table data as shown in FIG. This is a means for selecting a backup line. A case where the line / command type is a ground line or FAX will be described with reference to FIG. If the terminal device is not used, the ground line is used, and if the terminal device is in failure, the backup line is used. If the terminal device is in use (FAX), a terrestrial line or a backup line is used, but this is also taken over by the line selection determining means 43 (see FIG. 6). Note that. If the line / command type is a backup line (either voice, fax, or data is acceptable), a backup line is inevitably used, but this line is a sequential broadcast communication using the circuit switching method. In addition, it is assumed that the device is not in use and malfunctions (telephone, FAX, computer) cannot be detected.
[0015]
Finally, the line selection determining unit 43 is based on the line generated by the device state determining unit 42, and the priority of the emergency mode / normal mode obtained from the command mode table and the simultaneous command (re-command) obtained from the command counter table. ) A means for determining the operation of the simultaneous command by corresponding the condition of the number of times as shown in FIG. As an embodiment, the case of a satellite line, the number of simultaneous commands twice, and the emergency mode will be described with reference to FIG. If the line and the terminal device can be used, the simultaneous command by the satellite line is executed at the first time, and if there is a station that does not respond here, the simultaneous command by the satellite line is executed again (re-instruction). Further, when there is no response at the second time, the order is to execute broadcast communication sequentially by the backup line. Here, the embodiment executed to the maximum is shown. If the simultaneous command line is optimally selected, the state of no response does not occur so much. If the line and the terminal device are in use, the simultaneous command is executed by the satellite line with the possibility of the device being restored for the first time. Here, if the device state has not been restored, broadcast communication is sequentially executed via the backup line. This corresponds to the processing taken over from the above-described line state determination unit 41 and device state determination unit 42. If the line and the terminal device are out of order, broadcast communication is sequentially executed from the first time through the backup line.
[0016]
In the above embodiment, the simultaneous command system in FIG. 1 has been described as an example. However, the present invention is not limited to this, and the equivalent to the simultaneous command line and the backup line is also provided in the ISDN line and the Internet / intranet. Applicable. Also, the description and setting conditions (satellite line, terrestrial line, backup line, number of simultaneous commands, waiting for equipment availability) of the line state judging means in FIG. 4, the equipment state judging means in FIG. 5 and the line selection deciding means in FIG. It can be freely set and changed to accommodate differences in system specifications.
[0017]
【The invention's effect】
According to the present invention, before starting the simultaneous command, the terminal station line and device status are judged, and the optimum simultaneous command line and detour (satellite line, ground line, backup line) according to the situation are automatically discriminated. As a result, it is possible to eliminate useless re-simultaneous commands (re-commands), and the total time required for one simultaneous command can be reduced to 1/2 and 1/3. Thereby, the processing efficiency of the system when simultaneous commands are generated in a concentrated manner can be improved. In the case of an emergency simultaneous command, it is possible to use a useful simultaneous command line that fully utilizes the facilities of the satellite line and the ground line and the backup line, so that the simultaneous command can be transmitted fastest and reliably. It is.
[Brief description of the drawings]
FIG. 1 is a configuration diagram showing an embodiment of a simultaneous command system to which the present invention is applied.
FIG. 2 is a diagram for explaining a data transmission method between devices in an embodiment of the present invention;
FIG. 3 is a diagram showing a relation between data and means for explaining a control method in an embodiment of the present invention.
FIG. 4 is a diagram showing a setting pattern and a line state of a terminal for explaining a line state determination unit of the present invention.
FIG. 5 is a diagram showing a line / command type and a terminal device state for explaining the device state determination means of the present invention;
FIG. 6 is a diagram showing a relationship among a command mode, a command count, a terminal device, and a line state for explaining the line selection determining means of the present invention.
[Explanation of symbols]
1: simultaneous command control device, 2: simultaneous command base, 3: weather information server, 4: satellite terminal device, 5: time division multiplexing device, 6: signal conversion device, 7: facsimile storage device or voice storage device, 8: Voice input device, 9: Facsimile device for simultaneous command transmission, 10: Fax adapter device for simultaneous command transmission, 11: Computer for simultaneous command transmission, 12: Communication satellite, 13: Satellite simultaneous command line, 14: Multiplex radio device 15: single wireless line or NTT dedicated line, 16: NTT subscriber line or satellite individual communication line, 17: terminal device, 18: simultaneous command receiving telephone, 19: simultaneous command receiving facsimile device, 20: simultaneous FAX adapter device for command reception, 21: Computer for simultaneous command reception, 31: Detection processing A, 32: Detection processing B, 33: Selection processing C, 34: Start of simultaneous command, 35: The answer status CRT display, 41: line status determination means, 42: device status determination unit, 43: line selection determining means.

Claims (1)

In a simultaneous command control device that transmits simultaneous command data to multiple terminal stations by a simultaneous command ,
The simultaneous command control device is configured to obtain a line status of the plurality of terminal stations at a predetermined timing and to select a usable line from a priority condition and a detour condition of a satellite or a terrestrial line;
A device state determination unit that selects an optimum line from the line generated by the line state determination unit and the device state of the terminal station and the command type;
A line selection determining means for determining execution processing from the relationship between a preset emergency or normal command mode and the number of commands,
For each terminal station of the plurality of terminal stations, there is provided means for generating a command target station bitmap based on the line state determination means, device state determination means, and line selection determination means, and the command target station A simultaneous command control device configured to activate a simultaneous command based on a bitmap .

Images