JPH07230589A - Gas security device - Google Patents

Abstract

PURPOSE:To inform a centralized monitor center of the stoppage, the runaway, etc., of the clock (RTC) of a gas security board by checking these stoppage, runaway, etc., by means of the clock of a CPU contained in the security board. CONSTITUTION:A gas security board 20 of each home II is connected to a centralized monitor center I via a telephone circuit III. Then various security data acquired from a gas sensor 22, a fire sensor 23, etc., the meter inspection data on a gas meter 24, etc., are reported to the center I from the board 20 via the circuit III. Then the board 20 checks the RTC serving as the operating standard of the board 20 by a CPU contained in the board 20. Thus the stoppage or the runaway of the RTC is reported to the center I.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention connects a gas security panel installed in each home and a centralized monitoring center via a telephone line, and provides meter reading data of a gas meter in each home.
The present invention relates to a gas security device that reports various kinds of gas security data and the like to the central monitoring center through the telephone line.

[0002]

2. Description of the Related Art FIG. 3 is an overall configuration diagram for explaining an example of a gas security device to which the present invention is applied. In the diagram, I is a central monitoring center, II is a user (home), and III is a telephone. The centralized monitoring center I and the user II are connected via a telephone line III. The centralized monitoring center I side is equipped with a CPU 11, a modem 12, a printer 13, etc., and the user II side is indoors with a gas security panel 20, a telephone 21, a gas sensor 22 (gas alarm device), a fire sensor (fire). Receiver) 23, etc., and a gas meter 2 outdoors
4. Centralized monitoring center C equipped with gas cylinder 25, etc.
When the PU 11 and the user's gas security panel 20 are connected via a telephone line III, for example, the meter reading value of the gas meter 24 is reported from the security panel 20 to the central monitoring center I, or when the gas sensor 22 detects a gas leak. The security panel 20 informs the central monitoring center I of the gas leak.

The gas security board 20 includes a gas sensor 2
When the signal of gas leak from 2 is received, the shutoff valve of the gas meter 24 is automatically closed to ensure safety, and
Notify the central monitoring center I of the gas leak. Upon receiving the gas leak information, the centralized monitoring center I dispatches an inspector to the user to confirm the fact of the gas leak, and when the fact of the gas leak is confirmed, the countermeasure is executed.

FIG. 4 systematically shows the security device shown in FIG. 3, in which 20 is a gas security panel, 21 is a telephone, 22 is a gas sensor (gas alarm), and 23 is a fire sensor ( Fire receiver), 24 is a gas meter, and 26 ₁ and 26 ₂ are free ports (FP) for monitoring, for example, switching timing of gas cylinders, monitoring of gas appliances with security, and other devices shown in FIG. The same reference numerals as those in the case of FIG. 3 are attached to the portions having the same operation.

FIG. 5 is a diagram showing a hardware configuration of the gas security board 20 shown in FIG. 4, which is provided with security information from the gas sensor 22, the fire sensor 23 and the like, and from the gas meter 24. Meter reading data, and further, a switching signal of the gas cylinder 25 (two gas cylinders 25 are normally provided, and when the cylinder in use is empty, the other cylinder is switched to the empty cylinder, Input / output port (I) for receiving gas filled, ready for next use, etc.
/ O PORT) and a data bus (Data Bus) for exchanging information with the CPU, such as a clock (RTC), display (LCD), numeric keypad (Key), etc., provided on the security board 20. I have it.

In the case of a battery-powered type, the gas security panel is normally in a standby state (sleeping state) in order to reduce the consumption of the battery, and only the RTC operates to keep time. The alarm time is set in this RTC, and the gas security panel does not monitor (the monitor is sleeping). Even while the monitor is sleeping, the RTC keeps track of events (CPU interrupt monitoring, RTC interrupt monitoring, electronic gas meter monitoring, key input monitoring, LCD display processing, etc.) and wakes up at the set time. Event is sent to the CPU built into the gas security panel and monitoring is started. The CPU reads the RTC time, checks the RTC time, and if the time is correct, performs a predetermined operation.

FIG. 6 is a diagram for explaining a monitor operation by the timepiece (RTC), in which S is a timepiece (RT).
C) indicates a sensor, and K indicates a sensor input by a ten-key pad. That is, the gas security panel 20 sets a telephone number (telephone number of the center) and a code (ID) of oneself (user) using the ten-key pad, makes a call to the centralized monitoring center through the telephone line, and makes a call from the centralized monitoring center through the telephone line. Ask the gas security panel to centrally load parameter information such as reserved time, regular notification (meter reading), and cylinder switching timing. The gas security panel has parameters set in this way,
When the monitor is activated in the standby state and an event occurs in this state, the gas security panel 2
By CPU in 0, memory destruction check, battery low (near low) check, gas meter reading, security gas appliance monitoring, cylinder switching timing monitoring, fire receiver monitoring, gas leak alarm monitoring, etc. Done 1
When the monitoring of the processing cycle is completed, it returns to the standby state.

[0008]

As described above, in the gas security panel 20 to which the present invention is applied, various monitors are executed every time an event occurs, but the above-mentioned clock (RTC) stops. If the RTC is stopped or goes out of control even after starting, it is impossible to perform accurate monitoring.

The present invention has been made in view of the above-mentioned circumstances, and in particular, before the monitor mode is entered, and also after the monitor mode is entered, the above-mentioned timepiece (RT
C) is checked using the clock of the CPU built into the gas security panel, and if a clock (RTC) stop or runaway occurs, the stop or runaway is reported to the central monitoring center. In addition to the above, an error display is displayed on the gas security panel itself.

[0010]

In order to solve the above-mentioned problems, the present invention provides (1) a centralized monitoring center and a gas security panel installed in each home, which are connected via a telephone line. In a gas security device for transmitting meter reading data of a gas meter, various security data, etc. from a security panel to the centralized monitoring center through the telephone line, the gas security panel has a function of checking an RTC which is an operation standard of the gas security panel. When the RTC is stopped or is out of control, the centralized monitoring center is notified that the RTC is stopped or out of control, and (2) The above The RTC check is performed by the reference clock from the CPU incorporated in the security board, and further, When TC is stopped or runaway,
Error display on the gas security panel itself,
Further, (4) the check of the RTC is performed every time the gas security board is activated, prior to the operation of the gas security board, and (5) the R
When the TC is stopped or is out of control, the gas security board is not activated. Furthermore, (6) the RTC check is performed at predetermined time intervals after the gas security board is activated. Further, (7) the operation of the gas security board is stopped when the RTC is stopped or is out of control.

[0011]

[Function] The stoppage and runaway of the clock (RTC) on the gas security board are checked using the clock of the CPU inside the gas security board, and if there is a stoppage or runaway, the centralized monitoring center will be notified. At the same time, the error is displayed on the gas security panel itself.

[0012]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS FIG. 1 is a schematic configuration diagram of an essential part for explaining an embodiment of the present invention, and FIG. 2 is a flow chart for explaining the operation of the present invention. ) 27, as described above, serves as a time reference for sequentially performing various monitors for a predetermined time, for example, 20 ms, but this clock (RTC) may stop or run out of control. is there. The present invention prevents the gas security board 20 from stopping, running out, etc. of the watch (RTC).
It is intended to check by using the clock of the CPU built in the.
A processor (CPU) 29 provided inside is a communication unit for exchanging data between the gas security panel and the centralized monitoring center, and a clock (R) is provided by the processor 28.
As a result of checking the clock of TC), if the clock (RTC) is stopped or is out of control, the communication unit 2
Report to the Central Monitoring Center through 9.

The clock (RTC) 27 is checked every time an event (for example, CPU interrupt monitoring, RTC timeout interrupt occurrence, or other event occurrence) occurs before the monitor mode for, for example, one second. To be done. When this check finds that the clock (RTC) is stopped or is out of control, the processor 28 notifies the centralized monitoring center to that effect, and at the same time, stops the operation of the processor, and The gas security panel itself displays an error message and waits for an inspector to be dispatched from the centralized monitoring center, or reloads the time from the center side or stops the equipment.

An example of checking the RTC before disclosing the monitor has been described above.
It is also possible to monitor the RTC, and in this case, as shown by the dotted line in FIG.
The CPU reads the RTC for 1 second, checks the RTC, and when a time difference occurs, the RTC is considered to be stopped or runaway, and the above-described processing is performed.

[0015]

As is clear from the above description, according to the present invention, the watch (RTC) of the gas security board is checked, and when the watch has a stop or runaway, the central monitoring center Since I am trying to make a report,
The central monitoring center uses a clock (RTC) on the user side.
It is possible to confirm the stop and runaway, and it is also possible to reload the time, stop the system, etc. from the central monitoring center side. Since the error display is displayed on the gas security panel itself, the user can know that the gas security panel is not operating.

[Brief description of drawings]

FIG. 1 is a schematic configuration diagram of a main part for explaining an embodiment of a gas security device to which the present invention is applied.

FIG. 2 is a flowchart for explaining an example of the present invention.

FIG. 3 is a diagram for explaining an overall configuration of a gas security device to which the present invention is applied.

FIG. 4 is a diagram showing a system configuration of a gas security panel to which the present invention is applied.

FIG. 5 is a diagram showing a hardware configuration of a gas security board to which the present invention is applied.

FIG. 6 is a diagram showing a monitor mode of a gas security panel to which the present invention is applied.

[Explanation of symbols]

I ... Centralized monitoring center, II ... User, III ... Telephone line,
11 ... CPU, 12 ... Modem, 13 ... Printer, 20 ...
Gas security panel, 21 ... Telephone, 22 ... Gas sensor (gas alarm), 23 ... Fire sensor (fire receiver), 2
4 ... Gas meter, 25 ... Gas cylinder, 26 ... Free port, 27 ... Clock (RTC), 28 ... Processor (CP)
U), 29 ... Communication unit.

Claims (7)

[Claims] 1. A centralized monitoring center and a gas security panel installed in each home are connected via a telephone line, and meter reading data of a gas meter, various security data and the like are transmitted from the gas security panel through the telephone line. In a gas security device that reports to a centralized monitoring center, the gas security panel has a function of checking an RTC (Real Time Clock) which is an operation standard of the gas security panel, and when the RTC is stopped or is out of control. The gas security device is characterized in that the centralized monitoring center is notified that the RTC is stopped or is out of control. 2. The gas security device according to claim 1, wherein the RTC is checked by a reference clock from a CPU incorporated in the security board. 3. The gas security device according to claim 1, wherein when the RTC is stopped or is out of control, an error is displayed on the gas security panel itself. 4. The gas security apparatus according to claim 1, wherein the check of the RTC is performed every time the gas security board is activated, prior to the operation of the gas security board. 5. The gas security device according to claim 4, wherein the gas security panel is not activated when the RTC is stopped or is out of control. 6. The gas security device according to claim 1, wherein the RTC check is performed every predetermined time after the gas security board is activated. 7. The gas security device according to claim 6, wherein the operation of the gas security board is stopped when the RTC is stopped or is out of control.