JPS59136893A - Premise disaster prevention 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 The present invention relates to an in-plant disaster prevention system that can automatically discover failures in devices within the system.

Traditional fire alarm systems require periodic inspections to ensure that they are always functioning properly. Moreover, in systems with many fire detectors, not only is the time required for inspection, but if a fire detector malfunctions, it cannot be discovered until the next inspection.
If a fire broke out during that time, there was a risk of serious damage to residents' lives and property. On the other hand, general fire detection devices consist of a detection element that detects heat and smoke, and an internal circuit device that processes signals from the detection element, and the detection element itself has very few failures or deteriorations, so when inspecting it, It is important to discover failures in internal circuit devices.

The present invention has been made to improve this problem, and is capable of constantly and automatically checking the state of the internal circuits of emergency state detection devices such as a large number of fire detectors via external device information exchange means and transmission path control means. The present invention provides an on-premises disaster prevention system that not only allows for monitoring, but also automatically detects failures and failures in the transmission equipment itself.

Next, the present invention will be explained in detail. FIG. 1 is an overall configuration diagram of the in-plant disaster prevention system of the present invention.

The on-premises disaster prevention system of the present invention comprises a central processing unit (1)' consisting of an information control means, an emergency processing means, and a failure detection means.
include. Furthermore, a transmission path control means (2), an external device information exchange means (4) connected to the means (2) via a bidirectional transmission path (3), an emergency state detection device (5), and a failure detection device. and emergency alarm devices (6) 9 (7>?).

The emergency state detection device (5) detects an emergency state such as a fire. The external device information exchange means (4) transmits and receives information between the emergency state detection device (5) and the bidirectional transmission path (3).
rro. The transmission path control means (2) controls the bidirectional transmission path (
3) Exchanging information with the outside to a specific one of the one or more external device information exchanging means (4) connected above.

The information control means of the central processing unit (1) transmits and receives information from a specific external device (4) to the transmission path control means (2).
) and has functions for issuing commands for exchanging information with the controller, and for taking in or transmitting the information exchanged according to the commands. The emergency processing means processes information based on the information obtained by the information control means in order to appropriately give necessary notifications to the user. The failure detection means provides or obtains information from the information control means and learns the operating state of the external device information transfer means (4) or the emergency state detection device (5).

The failure and emergency status notification device (6L (7)) notifies the user of the results obtained by the emergency processing means or failure detection means.

The on-premises disaster prevention system according to the present invention is configured as described above, and is configured such that a large number of emergency state detection devices (1) can be centrally managed at one location.

Next, the present invention will be explained in detail. FIG. 2 is an example of the construction of an on-premises disaster prevention system for explaining the present invention. In addition,
The same reference numerals as in FIG. 1 indicate that the components correspond to the configuration of the invention shown in FIG.

In the system shown in Figure 2, a central processing unit (1) communicates with a transmission child device (4) via a bidirectional transmission path (3) by making a request to a transmission parent device (2). Information is exchanged between the two, and based on the information obtained, the fire detector operation indicator lamp (
6) and alarm device (7) ′? It has a rough drive function. The transmitter device (4) controls the flow of people to a fire detector (5) as an external device. It is possible to connect a plurality of transmission subbags [(4)V, each of which is assigned an address, to the transmission path (3). The transmission parent device (2) sends and receives information to and from a specific one of the plurality of transmission child devices (4) connected to the transmission path (3).
/-r, and the central processing unit (1) controls one of the plurality of transmission child devices (4) connected to the transmission path (3) via the transmission parent device (2). It becomes possible to send and receive information to each and every one of Anin Kei. Also,
Information is exchanged not only by requests from the central processing unit (1) but also by inputs from the fire detector (5) or requests from the transmitter device (4).

The fire detector (5) is equipped with a test terminal, and when a test voltage is applied to it, if the internal circuit is functioning normally, a response will be output from the output terminal, but if there is a malfunction, a response will be output. If there is, no response will be issued.

In the above system -<-, 4J, the self-diagnosis program described below is executed at startup and after startup, respectively. It is executed at regular intervals after startup.

Next, the operation of the self-diagnosis program of the fire detector is explained in Section 6A.
This will be explained with reference to Figures 3B and 4. Incidentally, FIG. 4 is a flowchart showing an outline of the operation at this time.

First, when the system is started, a self-diagnosis program is executed to check the status of the transmitter device (4) and the fire detector (5). After the system is started, this self-diagnosis program is executed for each song at a certain period of time to check for any malfunctions.When this program is executed, the central processing unit (
1) performs output processing to add a signal to the test terminal of the fire detector (5).

In this procedure, as shown in Figure 4A, first, the central processing unit (1) sends a command to the transmission parent device (2) to output to a specific transmission child device (Figure 6A). ■).

The sending device (2) receives this command and puts information on the transmission line (3) as a serial pulse signal (Fig. 6A ■)
. When the transmitter device (4) finds that the information on the transmission line (3) is an output command for itself, it reads the information from the transmission line (3) and outputs it to the outside based on it (Fig. 6A ■). , This time, it sends a response to the transmission parent device (2) indicating that it has received the information (Fig. 3A ■).The transmission parent device (2) receives the response from the transmission child device (4). and further sends a reply to the central processing unit (1) (6th A
Figure ■). The central processing unit (1) receives the response from the transmission parent device (2) and learns that the information has indeed been sent to the transmission child device (4). The signal output from the transmitter device (4) is applied to the test input terminal of the fire detector (5) (Fig. 3A ■), and if the fire detector (5) is functioning normally, the signal is transmitted. Returns a response to the input of the child device (4) (3rd
(in figure B).

When the response is input, the transmission child device (4) sends a request to send information to the central processing unit (1) via the transmission parent device (2 links (Fig. 6B), ■). Processing device (1
) receives this request and sends the transmitter device (4) again.
) to read the 1n report from the parent device (θ).
2) (Figure 6B ■). The transmission parent device (2) receives the 5th command and transmits the transmission child device (4) and the transmission path (
3) to read the status of the fire detector (5).
Figure B (5)), the central processing unit (1 no \ receiver passes it on (Figure 6B ■)).Here, the central processor (1) sends it to the fire detector (5) based on the information received. know that it is functioning properly.

Since a plurality of transmitter devices (43) are connected, the central processing unit (1) sends and receives information to and from a specific transmitter device (4), and if an abnormality exceeds 1C, another In the same way, the central processing unit (1) sends and receives information to and from one transmitter device (4) in the same way. If all the connected transmitter devices (4) and pan fire detectors (5,) are not functioning properly, the input to the test input terminal will be affected. Therefore, the central processing unit (1) sends an output command to the transmission parent device (2), and even after a certain period of time, no transmission request is received from the transmission child device (4). When the fire detector (
5), and turns off the fire detector activation lamp (6) to notify the user of the failure. Further, when all the fire detectors (5) are functioning normally, the same lamp (6) is turned on.

Next, the case where there is a disconnection in the transmission line (3) or a failure in the transmitter device (4) will be described with reference to FIGS. 2 and 5. When it is desired to send information to the transmission child device (4), the central processing unit (1) sends the information to the transmission parent device (2) as described above.
), and the transmission parent device (2) receives this command and sends information to the transmission child device (4).

At this time, if there is a failure in the transmitter device (4) or the transmission line (3)
), if there is a disconnection, etc., the transmission from the transmission slave device (4) to the transmission master device (
The response to 2) is abnormal, saying that the information has been received, or there is no response at all. In this case, the transmission parent device (2) determines that the exchange of information with the transmission child device (4) has failed and notifies the central processing unit (1) accordingly. Based on this response, the central processing unit (1) learns of the occurrence of a failure and turns off the fire detector activation lamp (6) to notify the user of this fact.

If there is no failure, the above operation is performed for each of the plurality of connected transmitter devices (4) in sequence, and the transmission line (
3) and all transmitter devices (4) are functioning properly? When confirmed, the fire detector activation lamp (6) is turned on to indicate this to the user.

Also, if the fire detector (F)) detects the occurrence of a fire, the transmission child device (4) sends information and a request to the transmission parent device (2)? The data is sent to the central processing unit (1) via the central processing unit (1).

Once again, the central processing unit (II) receives this request.
A command to read information from the transmission child device (4) is given to the transmission parent device (2). Upon receiving this command, the transmission master device (2) reads the status of the fire detector (5) via the transmission slave device JR (4-channel transmission line (3)?) and reads the status of the fire detector (5) from the central processing unit (1).
Pass the uke. Based on the obtained information, the central processing unit (1) not only sounds the alarm device (7), but also causes the fire detector activation lamp (6) to flash, so that the user can immediately visually notify the user of the occurrence of a fire. do.

As described above, depending on whether the fire detector operation indicator lamp (6) is on, off, or flashing, the user can determine whether the fire detector (5) is properly monitoring the function. According to 1, it is possible to recognize whether the equipment is working properly, whether a malfunction has occurred, or whether a fire has been announced.

In the above explanation, only one fire detector (5) and one operation indicator lamp (6) were shown, but if there are multiple fire detectors (5) and transmitter devices (4), It is also possible to prepare a plurality of the lamps (6) and program the lamps to turn on, turn off, or blink corresponding to each fire detector (5). In this way, it is possible to detect a fire. if you did this,
It is possible to immediately discover which fire detector detected the fire, and if a malfunction occurs, which one of the many fire detectors or transmitter devices is malfunctioning. For example, a light emitting diode, an incandescent light bulb, or the like is used as the lamp (6).

Although the above embodiment describes an example in which a fire detector is used as the external device (5), it is also possible to connect a gas leak detector, smoke detector, intrusion detector, etc., and each By preparing the external device operation indicator lamp corresponding to the detector, it becomes possible to apply it to various disaster prevention systems.

As described above, according to the present invention, it is possible to automatically discover failures in the devices themselves in a disaster prevention system, and furthermore, in a system with a large number of emergency state detection devices, it is possible to automatically discover which detection device has a failure. Since it is possible to immediately know when a fire has occurred, safety is facilitated, and the location of an abnormality such as a fire can also be immediately identified, allowing for the quick removal of 1N according to the situation, and the creation of a more reliable disaster prevention system. Can be done.

[Brief explanation of drawings]

Fig. 1 is an overall configuration diagram of an in-plant disaster prevention system according to the present invention, Fig. 2 is a configuration diagram of an embodiment of the present invention, and Figs. 6A and 6
Figure B is an explanatory diagram showing the signal flow in Figure 2 when the fault is discovered, Figure 3A is an explanatory diagram when a write operation is performed externally via the transmission path, and Figure 3B is an explanatory diagram showing the flow of the signals in Figure 2 when the fault is discovered. Road? Explanatory diagram 5 when performing a read operation from the outside via FIG. 4 is a flowchart showing the procedure for discovering a failure in a fire detector. ... Bidirectional transmission path, (4) ... External device is information exchange means (transmission child bag %Z
) -(57...Emergency detection device (fire detector)
, (6), (7)...Failure and emergency alarm device (
lamps, alarm devices). Agent Shin Kuzuno - Figure 3A 4th cause

Claims (3)

[Claims] (1) Emergency state detection device that detects emergency situations such as fire;
External device information exchange means for exchanging information between this emergency state detection device and the bidirectional transmission path; Transmission path control means for exchanging information with the outside for one; Issues a command to this transmission path control means for exchanging information with one specific external device information exchange means, and Information control means equipped with a function to take in or send out information given and received by commands, and emergency processing means that performs processing to appropriately give necessary notifications to the user based on the information obtained by this information control means: as described above. Fault detection means for giving information to or obtaining information from the information control means to know the operating state of the external device information transfer means or the emergency state detection device; and This disaster prevention system is equipped with a failure and emergency state notification device for notifying users of the results, and is capable of centrally managing a large number of emergency state detection devices at one location. (2) The in-plant disaster prevention system according to claim 1, wherein the failure detection means is configured to slow down its operation at fixed time intervals at the time of system startup and after system startup. (3) A light emitting diode or an incandescent light bulb is used as a malfunction and emergency state notification device, and the normal state, failure occurrence state, and emergency occurrence state are indicated respectively by the lighting, extinguishing, and blinking states of the light emitting diode or incandescent light bulb. The on-premises disaster prevention system described in item 1) or item (2).