JPS63262798A - Power source state transmitter - 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 [Field of Industrial Application] The present invention relates to a power supply status transmitting device that transmits power failure and power restoration from a plurality of alarm devices sharing a power source to a central monitoring device.

[Conventional technology]

A device that detects the status of building equipment and the like and sends and receives detection signals to and from a central monitoring device of a maintenance company or the like using a telephone line will be described with reference to FIG.

FIG. 2 is a system diagram of a conventional monitoring device. In FIG. 2, A is a detector that detects the status of building equipment, etc. Usually, a plurality of these detectors are provided in one building, and one representative detector is shown in the figure. B is an alarm device that issues a detected status signal. These detectors A and alarm device B are installed in a certain building, for example, and are A2 to A, ,
B2 to Bn are detectors and alarm devices installed in other buildings, respectively. C is a central monitoring device of a maintenance company or the like, and D is a circuit switching facility for telephone lines. 1 is a common power source that drives the alarm devices 81 to Bfi, and 2 is a power source detector that detects when the power source 1 is out of power and when the power is restored. Reference numeral 3 denotes a microcomputer that is provided in each alarm device B, =Bn and controls the driving of each. A battery 4 drives the alarm device B1 when the power supply 1 is out of power, and is also provided in the other alarm devices 82 to Bn. Reference numeral 5 indicates a telephone line between each alarm device B, =Bn and the line switching equipment, and numeral 6 indicates a telephone line between the line switching equipment and the central monitoring equipment C.

In a normal state, information regarding each of the detectors A1-80 is exchanged between the alarm devices B, -Bn and the central monitoring device C via the circuit switching equipment and the telephone lines 5 and 6. Now, if power supply 1 has a power outage, this power outage will cause each alarm device B,
=Bn is detected by the power supply detector 2, and this detection signal is processed by the microcomputer 3 and transmitted as a power outage signal to the central monitoring bag H1c. Central monitoring device C
Then, based on this power outage signal, each building recognizes that the power supply 1 has been out of power.

[Problem that the invention seeks to solve]

By the way, in the above monitoring device, when a power outage occurs in the power source 1, each alarm device B, -Bn that shares the power source 1 individually sends a message to the central monitoring device C that there has been a power outage. However, since the line switching equipment selects only one of these outgoing signals and connects it to the central monitoring device C, the other alarm devices temporarily suspend the outgoing operation, and then
After a certain period of time, it is necessary to perform a dial operation to call up the central monitoring bag WC again. In this way, all alarm devices B,
= In order to transmit the transmission signal of Bn to the central monitoring device C, it takes a time approximately proportional to the number of alarm devices Bn, and
There is a problem in that if the number of n is large, a large amount of time is required for transmission. Further, in the alarm devices B, -Bn, there was a problem in that dial operations for calling the central monitoring device C had to be repeated in vain. These problems are
This problem occurs not only during a power outage, but also when the power is restored.

An object of the present invention is to solve the problems of the prior art described above, and to provide a power status transmitting device that can efficiently transmit information from each warning device that shares the power source when the power is out of service or restored. It is on offer.

[Means for solving problems]

In order to achieve the above object, the present invention provides one central monitoring device and a plurality of alarms that receive a detection signal from a detector and send and receive signals regarding the detection signal to and from the central monitoring device. and a single power source for driving each of these alarm devices, wherein each of the alarm devices includes a detection means for detecting a change in state of the power source, and a detection means for counting up again after counting up to a predetermined value. a first counting means (for example, a ring counter) that repeats; a counting stop means that stops the counting of the first counting means when the detection means detects a change in the state of the power supply; and the first counting means stops. a calculation means that calculates a specific value (for example, the sum of the count value and the setting value) based on the count value and a predetermined setting value; and a second counter that counts the specific value. The present invention is characterized in that it includes means (for example, an addition counter) and output means for outputting a power state change signal to the central monitoring device when the count by the second counting means reaches the specific value.

[Effect]

The first counting means always repeats counting from zero to a fixed number. When a power failure occurs in the power supply, the counting stop means stops the counting of the first counting means. The count value of the first counting means at this time is input to the calculating means, and is added, for example, to a predetermined set value. The second counting means counts a specific value obtained by this addition, and when the second counting means counts up, a power outage signal is outputted to the central monitoring device by the output means. Since the count values of the first counting means in each alarm device are irregular, the output time of the power outage signal differs depending on each alarm device. Further, the same operation is performed when power is restored.

〔Example〕

Hereinafter, the present invention will be explained based on illustrated embodiments.

FIG. 1 is a system diagram of a monitoring device using a power status transmitting device according to an embodiment of the present invention. In the figure, parts that are the same as those shown in FIG. 2 are given the same reference numerals, and explanations thereof will be omitted. 3' is a microcomputer provided in each alarm device B, "Bn, and corresponds to the microcomputer 3 shown in FIG. 2. 7 is a ring counter provided in each alarm device B, -Bn; 8 is an addition counter similarly provided in each alarm device B, -Bn.

Next, the operation of this embodiment will be explained. Note that each ring counter 7 is configured to repeat the same counting again after counting from 0 to 100, for example. Normal state (
In a state in which no power outage has occurred, each ring counter 7 repeats the above-mentioned counting. In this case, at a certain time, the count values of the ring counters 7 of the respective alarm devices 81 to Bn are usually different.

Signals are normally exchanged between each alarm device 81 to Bn and the central monitoring device C.

In this state, if power supply 1 fails, each alarm device B
, =Bn is switched to the battery 4, and the drive is thereby continued. At the same time, each alarm device B,=
The Bn power supply detector 2 operates and inputs a power failure detection signal to the microcomputer 3'.

The operation of the alarm device B will be explained below. The microcomputer 3' uses this input to control the ring counter 7.
A stop signal is output to the ring counter 7, and the count value of the stopped ring counter 7 is input.

For example, this value is set to "50". On the other hand, a predetermined set value, for example, "30" is input to the microcomputer 3', and the input count value "50" of the ring counter 7 and the set value "30" are added (
Addition value r80J”). At the same time, the microcomputer 3
' instructs the addition counter 8 to start counting, and sequentially adds up the counted values. Then, the count value of the addition counter 8 is compared with the addition value "80", and when the two become equal, the signal from the power supply detector 2 is checked, and when it is recognized that the power outage has continued for m, the power outage is detected. The signal is output to the central monitoring device C and the addition counter 8 is reset to zero.

Similar operations are carried out in each alarm device 82 to Bn, but since the count value of the ring counter 7 that is stopped when a power outage occurs is different for each alarm device 81 to Bn, a power outage signal is sent to the central monitoring device C. The output time also differs for each alarm device 81 to Bn. Therefore, the power outage signals from each alarm device B, ~Bn are not input to the line switching equipment at the same time, but are input at different times, so each alarm device B, =Bn does not have to repeat re-dialing. Central monitoring equipment C
Transmission to is performed efficiently.

When the power is restored after the power outage, this power restoration is detected by the power supply detector 2, and the addition value "80" obtained at the time of the power outage is added by the addition counter 8, and a power restoration signal is output. As a result, each alarm device B.

The restoration signal from ~Bn is efficiently transmitted to the central monitoring device C.

The above setting values are set to avoid unnecessary power outage and power restoration signals being sent when power supply 1 repeatedly loses and restores power within a short period of time. The value can be set freely.

In addition, in the explanation of the above embodiment, an example was explained in which a specific value "8 old" is created by adding the set value "30" and the count value "50" when the ring counter 7 is stopped, but the present invention is not limited to this. Instead, a specific value may be created by subtracting a certain value from the count value or multiplying it by a certain value.

Furthermore, the functions of the ring counter and the addition counter can be executed within the microcomputer 3' without specifically providing the ring counter 7 and the addition counter 8.

Furthermore, in the explanation of the above embodiment, in the case of power restoration, an example was described in which the added value at the time of power outage is used. may be output.

Further, in the description of the above embodiment, the case where the present invention is applied to both a power outage and power restoration is shown, but it is obvious that the present invention can also be applied to only one of them.

〔Effect of the invention〕

As described above, in the present invention, when the power supply changes, the first counting means that repeatedly counts in each alarm device is stopped, and a specific value is created from the count value at that time and the set value, Since the power outage signal and the power restoration signal are output after this specific value is counted by the second counting means, it is possible to efficiently transmit data from each alarm device to the central monitoring device.

[Brief explanation of drawings]

FIG. 1 is a system diagram of a monitoring device using a power status transmitting device according to an embodiment of the present invention, and FIG. 2 is a system diagram of a conventional monitoring device. 1...Common power supply, 2...Power supply change detector, 3'...Microcomputer, 4.
...Battery, 5゜6...Telephone line, 7...
... Ring counter, 8... Addition counter, A I" A-... Detector for building equipment, etc., B, xBn... Alarm device, C.・・・・・・
Central monitoring equipment, D... Line switching equipment.

Claims (2)

[Claims] (1) One central monitoring device, a plurality of alarm devices that receive detection signals from detectors and send and receive signals regarding the detection signals to and from the central monitoring device, and each of these alarm devices. and a single power source for driving, wherein each of the alarm devices includes a detection means for detecting a change in state of the power source, a first counting means for repeating counting after counting up to a predetermined value, and a first counting means for repeating counting after counting up to a predetermined value; counting stop means for stopping the counting of the first counting means when a change in the state of the power source is detected by the means; and a count value when the first counting means stops, based on a predetermined set value. a calculation means for calculating a specific value using the second counting means; 1. A power status transmitting device comprising: output means for outputting a signal. (2) The power state transmitting device according to claim (1), wherein the set value is arbitrarily set by a setting means.