JPS6350241A - Alarm information transmission system - Google Patents

Abstract

PURPOSE:To reduce the number of subscriber's circuits for alarm information transmission to a master station as much as possible and to increase the number of subscribers which can be stored, by gathering alarm information of the other containers and discrimination information, which discriminates the container where alarm occurs, by one representative container and transmitting these information to the master station. CONSTITUTION:If alarm occurs in any of containers 111-1-111-n, alarm informa tion Sa or Sb is transmitted to the subscriber's circuit 4n of the representative container 111-n through a signal line LA or LB. Meanwhile, discrimination information cal1-caln which discriminate the occurrence of alarm are applied through peculiar signal lines L1-Ln from the container where alarm occurs. The subscriber's circuit 4n of the representative container 111-n transmits alarm information Sa or Sb and discrimination information cal1-caln to a master station 112. The master station 112 not only displays the contents of alarm information Sa or Sb and discrimination information cal1-caln, which are transmitted through the subscriber's circuit 4n of the representative container 111-n, on a video unit 17 but also prints out them by a printer 18.

Description

[Detailed Description of the Invention] [Summary] This is an alarm information transmission system that transmits information from a plurality of containers such as portable remote line concentrators to a master station by transmitting five signals inside each container.
°2 In transmitting alarm information that always corresponds to
The number of subscriber circuits for transmitting alarm information to the master station is minimized, and the number of subscribers that can be accommodated is increased.

[Industrial Application Field 1 The present invention relates to an alarm information transmission system, and more specifically, for example? ! Portable remote line concentrator (container)
In a switching system where remote line concentrators are installed, the master station, which is installed far from these remote line concentrators and performs exchange processing and system status monitoring, is notified of abnormalities in the environment inside each remote line concentrator or abnormalities in the equipment itself. This invention relates to an alarm information transmission system that transmits alarm information by detecting.

As a conventional alarm information transmission system, a system is known in which alarm information is transmitted from each container to a master station via a subscriber circuit interface.

[Conventional technology]

FIG. 3 is a diagram showing an example of the configuration of a conventional alarm information transmission system of this type, and shows one system of the container 111. In the figure, 1 is a temperature sensor that detects abnormal temperature inside the container, and 2 is a smoke sensor that detects smoke inside the container. 3 is an alarm distribution unit, in which a relay SA corresponding to the temperature sensor 1 and a relay SB corresponding to the smoke sensor 2 are installed. These relays SΔ and SB are driven when the corresponding temperature sensor 1 and smoke sensor 2 detect an abnormality and generate a loop circuit, and the contacts 3a and 3b are closed.

4 is a subscriber circuit for sending alarm information inside the container to the master station 112, and detects a loop in which an abnormality has occurred from the open/close states of contacts Sa and Sb of relay S△ and SB of alarm distribution unit 3. A loop detection circuit 5 is provided. 6 sends subscriber call origination and call termination information to the master station 11.
These are the υ and input circuits for sending out data to 2. Each of these subscriber circuits 4.6 is connected to a multiplexer +F8 constituting the signal processing circuit 7. The output signal of the multiplexer 8 is applied to the CPU 10 via a scanner 9.

The output signal of the CPU 10 is connected to a multiplexer 12 via a channel memory 11. The multiplexer 12 is connected to a multiplexer 14 forming a network 13 of the master station 112. The output signal of the multi-break 4 14 is sent to the CPU 16 via the channel memory 15.
has been added to.

The CPU 16 includes a viaoninit 17 and a printer 1.
8 are connected.

Figure 4 shows multiple n lines of containers i i 1-i to 111.
3 is a configuration side view of an alarm information transmission system composed of a master station 112 and a main station 112, and the same parts as in FIG. 3 are given the same reference numerals.

In a system configured in this way, each container 111
Alarm information is transmitted from -1 to 111-n to the network 13 of the parent 8112 via the subscriber circuit 4 and the signal processing circuit 7, respectively.

[Problems to be solved by the invention] In such a conventional alarm information transmission system, a subscriber circuit is required for transmitting alarm information corresponding to internal abnormalities to the local station for each container. The scale increases in proportion to the number of alarm information.

Furthermore, in order to send alarm information through the subscriber circuit in this manner, the number of subscriber call origination and call termination information that can be accommodated is limited.

The present invention has been made in view of these points, and
An object of the present invention is to provide an alarm information transmission system that can accommodate a large number of subscriber call origination and call termination information by minimizing the number of subscriber circuits for transmitting alarm information to a master station. The purpose is

Means for Solving Problem 1] FIG. 1 is a principle block diagram of the alarm information transmission system of the present invention, and the same parts as in FIGS. 3 and 4 are given the same reference numerals.

In the figure, between each container 111-1 to 111-n, alarm information 3a1 to Sa'n, Sb1 to 5b
The signal lines LA and LB for transmitting rl are connected in duplicate, and the signal lines Δ and LB are connected to the subscriber circuit 4n of the representative container 111-n. Further, the subscriber circuit 4n is provided with identification information ca11 to cat TI for identifying that an alarm has occurred from each of the containers 111-1 to 111-n via respective unique signal lines L1 to Ln. It is being

[Operation] When an alarm occurs in any of the containers 111-1 to 111-n, alarm information Sa or sb is transmitted to the subscriber circuit 4n of the representative container 111-n via the signal line LA or LB. On the other hand, from the container where the alarm occurred, a unique <Q Fi line! ~L Identification information for identifying that an alarm has occurred via n (identification information of the container in which the alarm has occurred) cal l -c
atn has been added. The subscriber circuit 4n of the representative container 111-n transmits the alarm information Sa or sb and the identification information cal, to cal to the master station 112. The master station 112 receives alarm information 3a or s sent via the subscriber circuit 4n of the representative container 111-n.
b and the contents of identification information cal1 to calTl are displayed on the video unit 17 and printed out on the printer 18.

[Example] Hereinafter, an example of the present invention will be described in detail with reference to the drawings.

FIG. 2 is a configuration block diagram showing one embodiment of the present invention, and shows a specific example of the representative container 111-n. still,
Components that are the same as in FIG. 1 are given the same reference numerals. In the figure, the alarm distribution unit 3n is provided with a relay CALT1 for transmitting identification information for identifying that an alarm has occurred. The relay CA Lr+
is driven when either contact 3an of relay S An corresponding to temperature sensor 1n or contact 3bn of relay SBn corresponding to smoke sensor 2T+ is closed to generate a loop circuit, and contact cal is closed. will be accomplished.

The open/close state of the contact cal Tl of the relay CALn is detected by the loop detection circuit 5n of the subscriber circuit 4n together with the contacts 3 an and S bn of the other relays SAn and SBn. Then, the detection results are sent to the parent J as described above along with alarm information and container type information from other containers.
The image is transmitted to ¥112, displayed on the video unit 17, and printed out on the printer 18.

[Effects of the Invention] As explained in detail above, according to the present invention, the subscriber circuit for transmitting alarm information from a plurality of containers connected to a master station need only be provided in the representative container. The number of subscribers that can be accommodated in each container can be increased, and an efficient alarm information transmission system can be provided.

[Brief explanation of the drawing]

Fig. 1 is a principle block diagram of the alarm information transmission system of the present invention, Fig. 2 is a configuration block diagram showing an embodiment of the invention, and Fig. 3 is a conventional configuration of the alarm information transmission system.
FIG. 4 is a diagram showing an example of the configuration of a plurality of conventional systems. 1st. In FIG. 2, 1n is a temperature sensor, 2T is a smoke sensor, 3Tl is an alarm distribution unit, 4η is a subscriber circuit, 5Tl is a loop detection circuit, 111-1 to 111-n are containers, 112 is a master station, L1 ~Ln, LA, LB are signal lines, SAn ~S[3n, CALn is a relay, 3an,
Sbn and caln are contacts.

Claims (1)

[Claims] Each container (111-1) to (111-n) is sent to a master station (112) from a plurality of containers (111-1) to (111-n).
n) in an alarm information transmission system that transmits alarm information corresponding to an internal abnormality, one representative container (for example, 111-n) transmits alarm information of other containers (111-1) to (111-n-1). and collecting identification information for identifying the container in which the alarm has occurred, and transmitting the alarm information and identification information to the master station (112) via the representative container (111-n). transmission system.