JPS61271600A - Self fire alarm system - Google Patents

Abstract

(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

DETAILED DESCRIPTION OF THE INVENTION [Technical Field] The present invention relates to a fire alarm system that transfers data between a receiver and a repeater.

[Background technology]

Figure 3 shows the overall configuration of this type of fire alarm system.The receiver (1) and each repeater (2) are connected via a transmission line (3), and the receiver (11 is A time division multiplex transmission system is configured in which each repeater (2) is sequentially called and data is transferred from the repeater (2).The repeater (2) is connected to the general fire detector (5) via the line (4). ) and an analog sensor (6) that detects smoke density can be connected to a general fire IHT detector (
5) and the output data of the analog sensor (6). The repeater (2) then transfers this captured data to the receiver (11).

By the way, in the conventional system, the output data of the analog sensor (6) is transmitted each time in response to the sequential calls of the receiver (11). The software required to do this was also complicated.In particular, this tendency accelerated as the number of analog sensors (6) increased, so there was a limit to the number of analog sensors (6) that could be connected. (6) is a base part (6a) and a head part (6
For example, the smoke concentration detected by the head part (5b) is converted by the signal conversion part provided in the base part (6a), and the signal is converted from the repeater (2) according to the access from the repeater (2).
It is designed to be forwarded to.

[Purpose of the invention]

The present invention has been made in view of the above-mentioned problems, and its purpose is to be able to display and record changes in the output data of an analog sensor on the receiver side, and to have a large capacity on the receiver side. We provide a self-fire alarm system that does not require manual intervention, greatly simplifies the receiver software, and can centrally monitor specific analog sensors that are prone to false alarms and missed alarms. There is something to do.

[Disclosure of the invention]

Embodiment FIG. 1 shows an embodiment circuit of a repeater (2) which is an important element of the present invention. It is equipped with a device monitoring section (7) and an interface section (8) for receiving the output data of each analog sensor (6), as well as sequentially accessing each analog sensor (6) via the interface section (8). and transfer the output data.

A function to import and judge the monitoring data of the general sensor monitoring section (7) and a function to compare the output data of the analog sensor (6) that has been taken in and the set level is set to the machine control unit (9). A control function that writes and reads output data exceeding the level, takes in the transmission signal from the receiver f1+ via the interface unit (lO), determines the data content of the transmission signal, and reads the transmission signal from the receiver [1]. A function to transfer the output data of the analog sensor (6) stored in the memory (9) and the monitoring data of the general sensor (5) according to the required intelligence, and a function to transfer the output data of the analog sensor (6) stored in the memory (9) and the monitoring data of the general sensor (5), The transmission processing section (11) has a fixed finger (1) for writing the output data of the analog sensor (6) into the memory (9) regardless of the set level. The connections between the repeater (2) configured in this manner, the analog sensor (6), and the general sensor (5) are the same as in the circuit of FIG. 3.

Next, the repeater (
The processing operation of the output data of the analog sensor (6) in 2) will be explained.

First, the receiver (1) specifies whether or not the output data of the analog sensor (6) is to be accumulated regardless of the set level. Therefore, the repeater (2) judges whether fixed designation has been made or not every time the analog sensor (6) is called.

Now, the repeater (2) is connected to the analog sensor (6)
When the output of the analog sensor (6) is taken into the transmission processing unit (ll), the transmission processing unit determines whether the analog sensor (6) is fixed and fixed. If the data is specified, 1 unconditionally issues an instruction to write the captured data into the allocated area of the memory (9). If a fixed specification is not specified, the transmission processing unit (1) compares the output level with a preset setting level, which is the accumulation start level, and if the output level exceeds the setting level, outputs the output data. Issue a command to write to the allocated area. Now, when a command to write output data is issued, the transmission processing unit (11) then determines whether or not there is enough room for writing in the capacity of the area allocated to the analog sensor (6) K, and if the capacity is exceeded. If not, write processing to the memory (9) is performed. If the capacity is exceeded, it is determined whether there is any remaining capacity in the memory area assigned to another analog sensor (6), and if there is, the remaining area is changed to the memory area of the analog sensor (6) in question. . If there is no remaining area, the first accumulated output data in the memory area of the analog sensor (6) is erased. In this way, the output data is written to a modified memory area or to a memory area obtained by erasing the data.

When the writing process is completed as described above, the output data is transferred from the next analog zero sensor (6) and the same process is performed. Of course, analog sensors (6
), if the output is below the set level above, it will not be accumulated in the sensor (9) and will be immediately transferred to the next analog sensor (6).
).

Now, if you want to transfer the output data of each analog sensor (6) accumulated in the memo January 9) of the repeater (2) to the receiver ill side, the analog sensor (6) that you want to transfer from the receiver (1). The address data and transfer request command are transferred to the relay device (2
). The transmission processing unit of the called repeater (2) (
The river determines the content of the transmitted signal and sends it to a predetermined analog sensor (
The output data of step 6) is read from the memory (9), converted into a predetermined signal format, and continuously transmitted to the receiver (1). Therefore, in the receiver (1), the analog sensor (6)
), it is possible to check changes in the output data, and it is also possible to display and record the changes. In this case, the receiver +1) only needs to temporarily store the output cheek of the analog sensor (6) that has been transferred, and the processing software also handles the transmission process of the transfer request command and the transfer process of the transferred output data. Only the reception processing is required, which greatly simplifies the knowledge. Furthermore, the stored data in the menu (9) can be erased simply by issuing a command from the receiver fl) to the transmission processing section (11) of the repeater (2). Furthermore, the above fixed designation can be canceled by giving a command using a transmission signal from the receiver +1), and in this case, the canceled analog sensor (6) will automatically perform accumulation processing by comparing the set level and output. [Effects of the Invention] Since the present invention is configured as described above, the output cheeks of the analog sensor can be automatically accumulated by the repeater, and the accumulated data can be continuously transferred in response to a request from the receiver. It is possible to display and record changes in analog sensor data on the receiver side, and data is accumulated in each repeater.
It does not require a large memory capacity on the receiver side, and has the advantage of being able to store data from a large number of analog sensors.Furthermore, the receiver side only needs to request data transfer to the repeater, so it is easy to receive data. The processing software on the receiver side has become simpler, and the receiver side has the effect of being able to record maintenance, etc., and to report abnormalities at the forecast level. The output data of a predetermined analog sensor is accumulated in the above-mentioned area assigned to the analog sensor during monitoring, regardless of the setting level, and the accumulated data is continuously transferred to the receiver at the request of the receiver. Since it is equipped with a means to do this, it is possible to intensively monitor the status of analog sensors that are at risk of false alarms or missing alarms, which is effective for maintenance, etc. Furthermore, fixed designation can be canceled from the receiver side. This has the effect that fixed monitoring can be specified and canceled at will from the receiver side.

[Brief explanation of drawings]

FIG. 1 is a circuit configuration diagram of a repeater according to an embodiment of the present invention, FIG. 2 is a flowchart for explaining the operation of the same, and FIG. 3 is a basic system configuration diagram. 2) is an AC equipment, (3) is a transmission line, (4) is a line, (6) is an analog sensor, (9) is a memory, and (n) is a transmission processing section. Agent Patent Attorney Ishi 1) Long 71111 Drop

Claims (1)

[Claims] (1) Consists of a receiver, a repeater connected to the receiver via a transmission line, and a plurality of analog sensors connected to the repeater, and the output of each analog sensor connected to the repeater. means for sequentially monitoring and detecting that the set level has been exceeded, a memory for sequentially storing the output data of the analog sensors that exceed the set level in respective assigned areas, and an area of the memory allocated to the analog sensor when output data of a predetermined analog sensor fixedly designated by the receiver is sequentially monitored regardless of the setting level; and means for continuously transmitting the stored data to the receiver at the request of the receiver,
A self-fire alarm system characterized in that the above-mentioned fixed designation is canceled by a command from a receiver side.