JPH06208591A - Switching system for map retrieving device - Google Patents

Abstract

PURPOSE:To automatically switch the connection of a map retrieving device to each command board by allowing plural command boards to share a RAM and allowing each command board to check an unused flag in the RAM and switch the connection of the map retrieving device to itself. CONSTITUTION:Interfaces 105, 205 are respectively connected to controlling computers 101, 201 built in respective command boards 100, 200 in a fire fighting emergency information system or the like as windows for a map retrieving device 300, a shared RAM 1 has the receiving status of a call from an emergency telephone line 10 or control data to be shared by respective boards 100, 200 and is accessed from the computers 101, 201 in common. When respective boards 101, 201 receive an emergency call through the line 10, respective computers 101, 201 access the RAM 1, judge whether the device 300 is in a usable state or not by a used/unused flag stored in the RAM 1, and when the device 300 is usable, switch the connection of the device 300 with each interface by a switching device 400.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a command operation to a station of a plurality of command towers of a headquarters in a fire emergency information system or the like, and particularly when a plurality of command boards share one map search device. Regarding good operation method of. In a fire emergency information system, it is important to identify a disaster point as soon as possible by linking a map search device and a command board. Also in the police business, it is important to link the map and the command board in order to identify the location of accidents and crimes.

[0002]

2. Description of the Related Art In a conventional fire emergency information system, if each command station has one map search device, it can be operated without switching, but an expensive map search device is provided for each command station. There are few local governments, and multiple command boards share one map search device, and each command station manually switches the interface to one map search device each time a search is required. The current situation. Normally, as shown in the signal exchange diagram of FIG. 5, it is slow if each command board switches after receiving the so-called 119 line from the disaster site, so immediately after the line is captured, a start request (a) is first issued. Send to the map search device, then receive the coordinate code request (b) for determining the disaster point from the map search device, set it, and then press the map search button on the command board and send the coordinate code output (c) To do. That is, after capturing 119 lines,
If you switch to your own command board, the map search device will continue to wait for a start request (a) and a coordinate code request (b), and signal exchange will stop, so the operator Will have to start over again.

[0003]

Therefore, in order to reduce the burden on the operator of the command board and to reliably exchange data with the map search device, the command board can be used in each map search device. It is desirable that the switching connection to the command board be made automatically rather than manually. It is an object of the present invention to provide a map search device switching system in which automatic switch connection of one map search device to each command board can be performed in an inexpensive and simple manner.

[0004]

The basic configuration of the present invention for achieving this object is shown in the principle diagram of FIG. For simplicity,
The system when there are two command boards is shown. 100,20 in the figure
Reference numeral 0 is a first command board and a second command board, 101 and 201 are control computer for each command board, and an emergency telephone line 10 to each command board and various external devices such as screen display devices 108 and 208. Control the exchange of control signals. Control computer
101,201, each keyboard 107,207 and each display device 108,
Interfaces 105 and 20 are used as inputs and outputs to each operator of the 208.
5 is connected as a window to one map search device 300. The shared RAM 1 has the call acceptance status of the emergency telephone line 10 and control data that should be shared by the command boards 100 and 200, and is commonly accessed by a plurality of control computers 101 and 201. 102 and 202 are trunks, which connect the emergency telephone lines 10 in a one-to-one manner and notify the computers 101 and 201 of incoming calls. 103,203
Is a line link frame (LLF),
The trunks 102, 202 are connected to the operator circuits (POS) 104, 204 according to instructions from the 101, 201. Each operator circuit (POS) 10
Each handset 106,206 is connected to 4,204. 3
00 is one map search device shared by each command board, 400
Is a switching device, and by the switching outputs 1b and 2b from the computers 101 and 201, respective interfaces 105 and 205
Switch connection to.

[0005]

In the present invention, each command board 100, 200 is an emergency telephone line.
At the time of accepting the so-called 119 emergency call at 10, each computer 101, 201 accesses the shared RAM 1 to determine whether or not one shared map search device 300 is available. If the map search device 300 is available, the switching output 1b, 2b to the switching device 400
The connection between each interface 105, 205 and the map search device 400 is switched. Therefore, according to the method of the present invention, for example, the command board 100 can prevent another command board 200 from switching the connection to its own 100 while the map search device 300 is in use, and the map search can be performed. Since the exchange of the control signal with the device 300 starts after the connection is completed, there is no need to continue waiting without knowing the coordinate code request (b) already output from the map search device 300.

[0006]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS The principle diagram of FIG. 1 is the same as that of the embodiment of the present invention. 2 is a flow chart for explaining the operation of this embodiment, FIG. 3 is a block diagram of the control computer of this embodiment, and FIG. 4 is a block diagram of the shared RAM of this embodiment. For example, a call of the so-called 119 emergency telephone line 10 from the NTT line is distributed to the respective command boards 100, 200, and the trunks 102, 20 which receive each call and output the incoming call detection 1a, 2a.
2 Fed. At the time of receiving this incoming call, the control computers 101 and 201 are controlled by the respective line link frame L by the input from the keyboards 107 and 207 of the operators of the command boards 100 and 200.
A line selection instruction is issued to the LF 103, 203 and each operator circuit POS 104, 204, and the corresponding line is captured. Immediately after this line selection instruction, each of the control computers 101 and 201
In the shared RAM 1 of the present invention, the used / unused flag F indicating whether the map search device 300 is in use or not is accessed as shown in the flowchart of FIG.
200 is currently using the map search device 300 (Y)
(N) Get information. At this point, for example, the command board 100
However, if the map search device 300 is being used by another command board 200 and is in use (Y), the message "other command board 200 is using the map search device 300 is displayed to the user's display device 108." Message is displayed. If the map search device 300 is not used by another command board 200 (N),
The identification code ID of the user 100 is written in the flag F to obtain the right to use the map search device 300. After that, the switching output 1b is sent to the switching device 400, and the command board 100 and the map search device are sent.
As shown in FIG. 5, which is the same as the conventional one, a signal is exchanged with the 300, and then the emergency call 10 of the 119th call is restored or the operator instructs "end map search".
The control computer 101 of the command board 100 writes back the flag F to the original, and again, all the command boards 100, 20 of the map search device 300.
It ends so that it can be used with 0.

[0007]

As described above, according to the present invention, a simple switching device for switching the connection with each command board and a shared RAM.
By adding some control software of the above to the conventional system, there is an effect that one expensive map search device can be operated efficiently without being aware of the switching reliably and by the operator. The effect of reducing the cost of the system etc. can be obtained.

[Brief description of drawings]

FIG. 1 is a principle diagram showing a basic configuration of a switching system of a map search device according to the present invention.

FIG. 2 is a flowchart for explaining the operation of the embodiment of the present invention.

FIG. 3 is a configuration diagram of a control computer according to an embodiment of the present invention.

FIG. 4 is a configuration diagram of a shared RAM according to an embodiment of the present invention.

FIG. 5 is an exchange diagram of control signals between each conventional command console and a map search device.

[Explanation of symbols]

1 is shared RAM, 100,200 is command board, 101,201 is control computer, 102,202 is trunk, 103,203 is LLF, 1
04,204 is POS, 105,205 is interface, 106,206
Is a handset, 107 and 207 are keyboards, 108 and 208 are display devices, 300 is a map search device, and 400 is a switching device.

Claims (1)

[Claims] 1. A system in which a plurality of command boards (100, 200) at a headquarters switch a connection with one map search device (300) with a switching device (400) and use it for commanding a station,
Each of the plurality of command boards (100, 200) is an external emergency telephone line
Each control computer (101, 20) has a call acceptance state from (10) and control data that each command board should have in common.
It has a shared RAM (1) commonly accessed from 1),
Depending on the used / unused flag (F = 1/0) that indicates whether each command board (100, 200) in the shared RAM (1) is currently in use or not in use, 100) is another command board
After checking the unused flag (F = 0) of (200),
A map search device switching method characterized in that the connection with the map search device (300) is switched to (100).