JPH01289335A - Data collection system at fault of subsequent station side - Google Patents

Abstract

PURPOSE:To collect data to a host station without losing recorded text and without any trouble by sending a memory data of its own station to a relay station from the 1st transmission means when communication restart is enabled after a fault of a subsequent station side and allowing the 2nd transmission means of the relay station to send the data from the subsequent station and the memory data of its own station to the host station. CONSTITUTION:A host station 1, a relay station 2 and a subsequent station 3 are connected in series, and the subsequent station 3 is provided with the 1st transmission means 6 and the relay station 2 is provided with the 2nd transmission means 7. When the communication with the relay station 2 is interrupted due to a fault of the subsequent station 3 and the communication is enabled again, the data stored in a memory 4 of its own station is sent to the relay station 2 by the 1st transmission means 6 of the subsequent station 3 prior to the restart of communication. Then the 2nd transmission means 7 of the relay station 2 prior to restart of communication sends the data sent from the subsequent station 3 and the data stored in the memory 5 of its own station to the host station 1. Since the data is collected automatically prior to the restart of communication, the loss of data due to restart of communication is avoided and no trouble is caused.

Description

[Detailed Description of the Invention] [Summary] An upper station, a relay station, and 5 lower stations are connected in series, and data from the lower station is stored in the memory of the lower station, sent to the relay station, and transmitted to the relay station. The relay station stores the sent data in its own memory and sends it to the upper station, and the data from the upper station is stored in the relay station's own memory and sends it to the lower station. Regarding the communication system in which the lower station stores the sent data in the memory of the lower station, when communication with the relay station is cut off due to a failure on the lower station side and communication is able to be resumed, the said lower station The purpose is to provide a data collection method in the event of a failure on the lower station side that allows the data recorded in the memory of the relay station and lower station to be collected to the upper station without loss or effort. When communication with a station is interrupted and communication can be resumed, the subordinate station transmits the data stored in its own memory to the relay station using the first transmitting means before communication is resumed. At the relay station,
The second transmitting means is configured to transmit the data sent from the lower station and the data stored in the memory of the own station to the upper station.

[Industrial application field]

The present invention provides a communication command system for firefighting in which an upper station, a relay station, and a lower station are connected in series, and data from the lower station is stored in the memory of the lower station and sent to the relay station.
In addition, the relay station stores the sent data in its own memory and sends it to the higher-level station, and the data from the higher-level station is stored in the relay station's own memory and sent to the lower-level station. sent,
The present invention relates to an improvement in a data collection method in the event of a failure on the lower station side of a communication system in which data sent to the lower station is stored in the memory of the lower station.

As shown in Figure 4, the 1FFL communication command system for fire departments has 30 superior stations in the fire department. Relay station 20 connected to this
, 21, 22. ..., and in many fire stations, each fire station has one lower station 10 to 18 that is connected to a relay station. The higher station 30 informs the station 30 of the status of the fire engine, such as whether it is on standby, dispatched outside the station, dispatched due to a disaster, or is out of service due to a breakdown. Directions such as how many fire trucks to dispatch are issued via the lower station's loudspeaker.

[Conventional technology]

A conventional example will be explained below using figures.

FIG. 5 is a block diagram of the main parts of a conventional fire communication command system.

When the upper station 30 issues a command to the lower station 10', such as which number of fire engines to dispatch, for example, the command data is sent to the relay station 20'' via the relay station communication control section 53.

The relay station 20' receives data from the upper station communication control unit 47, sends it to the data collection processing unit 48', and uses it cyclically.It is capable of recording dozens of messages. It is recorded in the recording unit 50 and sent to the lower station 1o° via the lower station communication control unit 49.

In the lower station lO', the message is received by the relay station communication control unit 4o'', is recorded in the data recording unit 41 which is used cyclically and is capable of recording several tens of messages, and a command is issued from the speaker.

Then, the commanded fire engine is dispatched, but at this time it is a disaster dispatch.When the disaster alarm 45 of the lamp key is turned on and the lamp is turned on, the disaster alarm data is sent to the relay station communication control unit 40.
The data is sent to the relay station 20' via ', and is also recorded in the data recording section 41.

In the relay station 20', the lower station communication control section 49 receives the data, sends it to the data collection processing section 48, records it in the data recording section 50 of the lower station 10, and sends it to the upper station communication control section 47. It is sent to the upper station 3o via the host station 3o.

In the upper station 30, the relay station communication control unit 53 receives it,
The information is recorded in the memory 57, edited by the editing processing section 54, and printed out to the printer 56 via the printer control section 55.

In addition, 2F, 22° is a relay station, 43 is a key with a lamp indicating that the fire engine is on standby, 44 is a key with a lamp that indicates that the fire engine is out of the station, 46 is a key with a lamp that indicates that the fire engine is in trouble, 51
Reference numeral 52 indicates a lower station 11° data recording unit, and 52 indicates a lower station 12° data recording unit.

However, for example, communication between relay station 20' and lower station 10' may be interrupted due to frequent noise on the line between relay station 20' and lower station 10', or a bug in the program of lower station 10'. In that case, it is necessary to find the cause of the failure.

In this case, a message from the upper station 30 to the lower station 10' and a message from the lower station 10' to the upper station 30 are recorded in the lower station 10 data recording unit 50 of the relay station 20'. , the message sent from the upper station 30 to the lower station 10'' recorded in the data recording unit 41 of the lower station 10'' and the lower station 10
``The cause is investigated by outputting a message destined for the higher-level station 30 using a personal computer or the like.

On the other hand, communication interruptions between relay stations and lower-level stations are often caused by frequent noise on the line that subsides after a while, or by a bug in the program that allows communication to be resumed once you leave the location of the bug.
”, the operator restarts the device. In most cases, communication can be resumed.

[Problem to be solved by the invention]

However, in the above example, the messages recorded in the data recording section 50 of the lower station 10' of the relay station 20' and the messages recorded in the data recording section 41 of the lower station 10' are manually collected. In particular, the subordinate stations are located far away from the fire department, and there are no maintenance personnel who can do this work, so they have to go out from the fire station to collect them, which is a time-consuming problem.

Furthermore, since the lower station 10° data recording unit 50 and data recording unit 41 are used cyclically, if the lower station resumes communication before data collection, data will be lost and it will be difficult to investigate the cause. There is a problem with this.

The present invention enables, when communication with a relay station is cut off due to a failure on the lower station side and communication can be resumed, the message recorded in the data recording section of the relay station and lower station can be saved without losing the message. The purpose of this study is to provide a method for collecting data in the event of a failure on the lower station side, which allows data to be collected at the upper station without any additional effort.

[Means to solve the problem]

FIG. 1 is a block diagram of the principle of the present invention.

As shown in FIG. 1, the upper station 1. Relay station 2. Lower stations 3 are connected in series, data from the lower station 3 is stored in the memory 4 of the lower station 3 and sent to the relay station 2, and the relay station 2 processes the sent data. The data from the upper station L is stored in the memory 5 of the own station of the relay station 2 and sent to the lower station 3, and the data is sent to the lower station 3. 3, the sent data is sent to the corresponding lower station 3.
In the communication system, the lower station 3 is provided with a first transmitting means 6, and the relay station 2 is provided with a second transmitting means 7, which are operated as follows.

That is, when communication with the relay station 2 is cut off due to a failure on the side of the lower station 3, and when communication becomes possible, the lower station 3 sends a message to the relay station 2 by the first transmitting means 6 before restarting communication. The data stored in the memory 4 of the own station is sent to the relay station 2, and the relay station 2 transmits the data sent from the lower station 3 using the second transmitting means 7 before restarting communication. The data and the data stored in the memory 5 of the own station are transmitted to the upper station 1.

[For production]

According to the present invention, when communication with the relay station 2 is cut off due to a failure on the side of the lower station 3 and communication can be resumed, the lower station 3 transmits the first transmission before restarting the communication. The means 6 sends the data stored in the memory 4 of the local station to the relay station 2, and the relay station 2 transmits the data from the lower station 3 using the second transmitting means 7 before restarting communication. The sent data and the data stored in the memory 5 of the local station are transmitted to the upper station 1.

Therefore, the upper station 1 can investigate the cause of the failure by printing out the sent data.

In other words, the data stored in the memory 5 of the relay station 2 and the memory 4 of the lower station 3 can be automatically collected by the upper station 1 before communication is restarted, so data will not be lost when communication is restarted, and there will be no hassle. It also costs less.

〔Example〕

An embodiment of the present invention will be described below with reference to the accompanying drawings.

FIG. 2 is a block diagram of the main parts of the firefighting communication command system according to the embodiment of the present invention, and FIG. 3 is a flowchart of the operation in the case of a failure on the lower station side according to the embodiment of the present invention.

The difference in FIG. 2 from the case in FIG. 5 is that when the lower station 10 side becomes impaired and it becomes possible to resume communication, the data recording unit 41 of the lower station 10 and the relay station 20 The message recorded in the data recording section 50 of the lower station 10 is sent to the upper station 30.
In order to send the data to the data collection processor 48 of the relay station 20,
The transmitting means 7 is provided, and the first transmitting means 6 is provided in the relay station communication control section 40 of the lower station 10, and the normal operation is the same as that described in FIG.

The operation will be explained below with reference to the flowchart of FIG. 3, focusing on this different point.

In step 1, for example, if communication between the relay station 20 and the lower station 10 is interrupted due to a failure on the lower station 10 side, step 2
At , the lower station restarts and becomes communicable.

In step 3, in this case, the lower-level station communication control unit 49 of the relay station 20 monitors whether communication with the lower-level station 10 becomes possible, and when it becomes possible, the second transmitting means 6 transmits Request data transmission.

In step 4, the lower station 10 transmits the communication control unit 4 to the relay station.
0, the first transmitting means 6 sends the message to the original data recording unit 4 without recording it in the data recording unit 41.
1 is transmitted from the relay station communication control section 40 to the relay station 20, and the data recording section 41 is cleared.

In step 5, the relay station 20
When the data collection processing unit 7 receives the message via the second
The transmission means 7 transmits the message to the upper station 30 via the upper station communication control unit 47 together with the message recorded in the lower station 10 data recording section 50, and clears the lower station 10 data recording section 50.

Here, the data collection processing unit 7 sends a telegram for starting operation to the lower station 10 as in the past, and resumes communication.

In step 6, the upper station 30 receives the sent message via the relay station communication control unit 53 and records it in the memory 57. If necessary, it is edited by the editing processing section 54 and printed out on the printer 56 via the printer control section 56.

That is, the telegrams recorded in the data recording section 41 of the lower station 10 and the telegrams recorded in the lower station 10 data recording section 50 of the relay station 20 are transmitted to the upper station 30 without loss and without any effort. The station 30 can now investigate the cause of the failure.

〔Effect of the invention〕

As explained in detail above, according to the present invention, when communication with a relay station is cut off due to a failure on the lower station side and communication is able to be resumed, data is recorded in the data recording section of the relay station and lower station. This has the effect that the transmitted messages can be collected at the upper station without any loss or effort.

[Brief explanation of the drawing]

Fig. 1 is a block diagram of the principle of the present invention, Fig. 2 is a block diagram of the main parts of a firefighting communication command system according to an embodiment of the present invention, and Fig. 3 is an operation of the embodiment of the present invention when a failure occurs on the lower station side. Figure 4 is a schematic diagram of an example fire communication command system, Figure 5 is a flowchart of
The figure is a block diagram of the main parts of a conventional fire communication command system. In the figure, 1.30 is the upper station, 2.20~22.20'~22' are the relay stations, and 3.10
~18,10° ~12゛ are lower stations, 4,5,57 are memories, 6 is a first transmitting means, 7 is a second transmitting means, 40.40' is a relay station communication control unit, 41 is a Data recording unit, 42 to 46 are keys with lamps, 47 is a communication control unit for upper station, 48, 48' is a data collection processing unit, 49 is a communication control unit for lower station, 50 is a data recording unit for lower station 10, lower 51 is a lower station 11 data recording unit; 52 is a lower station 12 data recording unit; 53 is a lower station 12 data recording unit; A relay station communication control section; 54 is an editing processing section; 55 is a printer control section; and 56 is a printer.

Claims (1)

[Claims] An upper station (1), a relay station (2), and a lower station (3) are connected in series, and data from the lower station (3) is transmitted to the lower station (3).
The relay station (2) stores the sent data in its own memory (5) and sends it to the upper station (2). 1), and the data from the upper station (1) is stored in the own memory (5) of the relay station (2) and sent to the lower station (3), and the data is sent to the lower station (3). In a communication system that stores the sent data in the memory (4) of the lower station (3), communication with the relay station (2) is cut off due to a failure on the lower station (3) side, and the communication is interrupted. is possible, before resuming communication.
From the lower station (3), the first transmitting means (6)
The data stored in the memory (4) of the own station is transferred to the relay station (
2), and the relay station (2) transmits the signal to the second transmitting means (7).
), the data sent from the lower station (3) and the data stored in its own memory (5) are transferred to the upper station (1).
A data collection method in the event of a failure on the lower station side, characterized in that data is transmitted to the lower station side.