JP2001338379A - Automatic fire alarm receiver - Google Patents

Abstract

PROBLEM TO BE SOLVED: To make it possible to automatically perform a capacity test of a battery being an auxiliary power supply. SOLUTION: This receiver is provided with the battery 8 as an auxiliary power supply and stores the consumption current value in a monitoring mode and the consumption current value in an operation mode of each terminal and the monitoring current value and the maximum load current value of a system at the time when power is supplied from the battery 8. A consumption current value within a prescribed test time is calculated on the basis of the monitoring current value and the maximum load current value of the system, and the battery 8 is subjected to a capacity test by dummy load on the basis of the consumption current value.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a self-fire alarm receiver for connecting a plurality of terminals such as a fire detector to constitute a self-fire alarm system.

[0002]

2. Description of the Related Art In buildings and condominiums, a self-fire alarm system (automatic fire alarm system) has been introduced. A self-fire alarm receiver is installed in a disaster prevention center, a security center, a manager's office, etc. Fire detectors are installed in buildings, dwellings, corridors, etc. to monitor the occurrence of fires. In the self-fire alarm receiver, when a fire detector emits an alarm, a fire display and an alarm sound are output, so that a guard or a manager can take prompt action. In addition, the self-fire alarm receiver works in conjunction with an acoustic device or smoke elimination device registered in advance corresponding to the fire detector to prevent the damage caused by the fire from spreading.

[0003] Such a self-fire alarm receiver incorporates a battery as a backup power supply so that even if a power failure or the like occurs, monitoring of the fire can be continued. The standby power supply is not used during normal monitoring, but needs to be checked periodically to prepare for an emergency such as a power failure.

[0004]

However, in the above-described conventional self-fire alarm receiver, the battery test is performed for a maximum load for a predetermined time (from several seconds to several minutes), and is required for an actual system. The battery capacity was not tested. Also, 2
There is nothing to detect an abnormality based on the current value on the next side (a circuit section common to the battery supply), and furthermore, the input / output line in which the abnormality has occurred cannot be specified.

The present invention has been made in view of such circumstances, and has as its object to provide a self-fire alarm receiver that can automatically execute a capacity test of a battery as a backup power supply. It is another object of the present invention to provide a self-fire alarm receiver capable of detecting an abnormality based on a current value.

[0006]

In order to achieve the above object, the self-fire alarm receiver according to the present invention is provided with a battery as a standby power supply, and monitors the current consumption during monitoring of each terminal. The operating current consumption value, the monitored current value of the system when power is supplied from the battery, and the maximum load current value are stored. Then, based on the monitored current value of the system and the maximum load current value, a current consumption value within a predetermined test time is obtained, and based on the current consumption value, a battery capacity test is performed with a pseudo load.

[0007] The "monitoring current value and the maximum load current value of the system when power is supplied from a battery" are defined as monitoring states in a circuit common to normal power supply and power supply by a battery. And the maximum current value when all terminals operate. Note that the maximum load current value may be a maximum load current specified by an inspection standard or the like.

The monitoring current value of the system is obtained by summing the monitoring current consumption values of the terminals. Further, the maximum load current value of the system is obtained by summing the operating current consumption values of the terminals. However, actually, a load current on the receiver side is added.

Since the test time is determined in advance by a verification standard or the like, a current consumption value at that time is obtained, a necessary battery capacity is obtained, and a test is performed using a pseudo load to determine whether the battery capacity is satisfied.

According to a second aspect, in the first aspect, the monitoring current value and the maximum load current value of the system can be stored by an operation input.

According to a third aspect, in the first or second aspect, the monitoring state is continued based on a current consumption value within a predetermined test time and a monitoring current value of the system instead of using the dummy load. Thus, a capacity test of the battery is performed.
According to a fourth aspect, in the first or second aspect, a function of detecting and storing the current value of the system is provided. Instead of using the pseudo load, the stored current value of the system is determined as follows.
The battery capacity test is performed until the current consumption value within the predetermined test time is reached.

According to a fifth aspect of the present invention, in any one of the first to fourth aspects, the battery capacity test is periodically performed, and the test interval can be set. According to a sixth aspect, in any one of the first to fifth aspects, a capacity test of the battery is performed based on a voltage drop rate of the battery within a predetermined time. According to a seventh aspect, in the first or second aspect, a battery capacity test is performed based on a current consumption value within a predetermined test time, a current consumption value of a pseudo load, and a system monitoring current value. .

According to an eighth aspect of the present invention, in any one of the first to seventh aspects, when a specific terminal is operated during the battery capacity test, the battery capacity test is stopped, while the specific terminal In operation, the battery capacity test is prohibited. According to the ninth aspect, in the eighth aspect, it is possible to set whether to suspend or prohibit the battery capacity test and to set a terminal type of a specific terminal.

In the self-fire alarm receiver according to the present invention, the monitoring current consumption value and the operating current consumption value of each terminal, and the monitoring current value and the maximum load current value of the system are stored. A function of detecting a value is provided. When the current value of the system exceeds a predetermined range with respect to the stored current value, it is determined that an abnormality has occurred.

According to an eleventh aspect, in the tenth aspect, a plurality of lines connecting a plurality of terminals are connected, and the plurality of lines are connected one by one to specify a line in which an abnormality has occurred. According to a twelfth aspect, when it is determined in the tenth or eleventh aspects that an abnormality has occurred, the input / output circuit corresponding to the location where the abnormality has occurred is disconnected. According to a thirteenth aspect, in any one of the tenth to twelfth aspects, a notifying means is provided, and when it is determined that an abnormality has occurred, the abnormality information is stored, and the notification by the notifying means is enabled.

[0016]

Embodiments of the present invention will be described below with reference to the drawings. FIG. 1 is a block diagram showing an example of the internal configuration of the self-fire alarm receiver. This self-fire alarm receiver A includes a rechargeable battery 7 as a standby power supply,
The capacity test of the battery 7 can be automatically performed.

In FIG. 1, reference numeral 1 denotes a CPU and the like.
The information processing circuit unit 2 that controls each unit is connected to a fire detector and the housing information panel of each dwelling unit to which the fire detector is connected, and inputs a fire signal transmitted from the fire detector and discharges. A signal input / output unit for outputting control signals for smoke equipment, etc., 3 is a signal input / output circuit individual switching circuit unit for switching the connection of a plurality of connected input / output lines, 4 is a switch operation unit having various switches, 5 Is a liquid crystal display,
A display / printing / alarm sound output unit that performs display by a CRT, various display lamps, etc., printout on recording paper, and alarm sound output by voice messages and signal sounds.

The self-fire alarm receiver A is a secondary-side current consumption detecting circuit for detecting current consumption in a circuit (secondary-side) commonly used during normal power supply and when power is supplied from the battery 8. Detection circuit section 6 and power supply circuit section 7 for supplying power to each section
A battery 8 charged by the power supply circuit unit 7;
And a dummy load connection circuit section 9 to which a dummy load used at the time of the capacity test is connected. The information processing circuit unit 1 includes a storage unit 10, a time management unit 11, and an A / D input unit 1 for digitally converting a current value from the secondary-side current consumption detection circuit unit 6.
2 is provided.

Hereinafter, the capacity test of the battery 8 of the self-fire alarm receiver A will be described. In the self-fire alarm receiver A, the monitoring current consumption value and operating current consumption value of each terminal such as a fire detector and the system monitoring current value and the maximum load current value when power is supplied from the battery 8 are calculated. I remember.

FIG. 2 schematically shows the configuration of the storage unit 10, and FIG. 3 schematically shows the current consumption of each terminal. Here, the monitoring current value 10a on the secondary side of the system is set by summing the monitoring current consumption values (a1, b1,... In FIG. 3) of each terminal. Further, the maximum load current value 10b on the secondary side of the system is determined by the operating current consumption of each terminal (a2, b in FIG. 3).
2, ...) are set by summing the values. However, actually, since a load current on the receiver A side is added, a value larger than the sum of these is set. Note that the maximum load current value 10b may be a maximum load current specified by an inspection standard or the like.

The monitoring current value 10a and the maximum load current value 10b of the system can be stored in the storage unit 10 by operating the switch operation unit 4. As a result, an actually measured current value suitable for an actual site system can be set.

The information processing circuit unit 1 of the self-fire alarm receiver A obtains a current consumption value within a predetermined test time based on the monitoring current value 10a and the maximum load current value 10b of the system, and calculates the current consumption value. Based on this, the capacity test of the battery 8 is performed by the dummy load of the dummy load connection circuit unit 9. Since the test time is determined in advance by a verification standard or the like, a current consumption value at that time is obtained, a required battery capacity (battery capacity 10f in FIG. 2) is obtained, and whether the battery capacity is satisfied is determined by a pseudo load. The test time (test time 1 in FIG. 2)
The test is performed during (10d)).

For example, in the verification standard, 6
It is assumed that a battery capacity that can operate for 10 minutes at the maximum load after 0 minutes has been specified. Assuming that 1A is consumed in the monitoring state and the maximum load is 6A, the capacity required by the standard is 2Ah.
(1A × 1h + 6A × 1 / 6h). Here, when the current (10c) flowing through the dummy load is set to 4 A in advance, 0.5h (30 minutes) (2
Ah / 4A).

In practice, however, the test is performed based on 1.25 times (2.5 Ah) of the capacity (2 Ah) required by the standard in order to secure a margin for the battery capacity. In this case, due to the pseudo load, 0.625h (37.5 minutes)
(2.5Ah / 4A) The above test is conducted.

As described above, according to the present invention, a practical capacity confirmation test of the battery 8 can be performed, which is not a simple operation in a short time as in the related art. At the same time, the current consumption can be reduced by alternately operating the battery and the AC power supply. Furthermore, the test time based on the actual current consumption is determined in consideration of the operation of the terminal, and the battery test can be appropriately performed.

Next, another method for testing the capacity of the battery 8 will be described. Instead of using the dummy load, a test time (test time 2 (10e) in FIG. 2) is obtained based on the current consumption value within a predetermined test time and the monitoring current value 10a of the system. By continuing the monitoring state, a capacity test of the battery 8 is performed. For example, when the same capacity (2 Ah) test as described above is performed and the current consumption 10 a in the monitoring state is 1 A, the system monitoring state is operated on the battery 8 for 2 hours (2 Ah / 1 A). Can be used as a test.

Also, by detecting the current value of the system by the secondary-side current consumption detection circuit section 6 and storing the current value, the stored current value of the system is reduced to a predetermined value instead of using a pseudo load. The capacity test of the battery 8 may be performed until the current consumption value within the test time is reached. That is, the actual current consumption of the system is constantly monitored, including fluctuations, and the integration of the measured current value is used to confirm the battery capacity 10
Until f, the system is operated on the battery 8 side. Thereby, an accurate and precise test can be performed. In this case, since the current value is accumulated, the test can be continued even if each terminal operates and the current value fluctuates.

In the self-fire alarm receiver A, the capacity test of the battery 8 is periodically performed, and the test interval can be set. By operating the switch operation unit 4,
An arbitrary interval can be selected from a plurality of stages and set in the storage unit 10 as a test interval 10 g. This test interval 10g
Are managed by the time management unit 11. Thus, even if the charging time and the test time of the battery 8 are different, more efficient operation can be performed in accordance with the load of the actual system at the site.

As another test method, a capacity test of the battery 8 can be performed based on a voltage drop rate of the battery within a predetermined time. For example, as in the above example, 2Ah
When a pseudo load of 4 A is used, the test time is 30 minutes. When the time is set to 1/6, that is, 5 minutes, the battery voltage becomes 5 minutes after the start of the test. Is 24.0 V or more, the test result is determined to be good. Here, the test result is determined based on the voltage level based on the voltage drop rate.

The determination time (5 minutes) and the determination voltage (2
4.0V) is previously stored in the storage unit 10 as the determination time 10h and the determination voltage 10i. In addition, the judgment time is set to a fraction of the normal test time (1/6 in the above example).
It may be set depending on whether or not. However, since the determination voltage characteristics fluctuate depending on the characteristics of the battery 8 and the load current, it is desirable that the switch operation unit 4 can manually select and change the setting of the determination voltage 10i from a plurality of stages. .

According to such a test method, the test time can be reduced. Here, the case where the dummy load is used is shown, but the present invention is not limited to this, and the test time can be shortened in the same manner when the test is performed with the monitoring current value 10a or the like.

In another test method, a current consumption value within a predetermined test time and the above-mentioned current consumption value of the pseudo load 1
Based on 0c and the monitoring current value 10a of the system, these can be combined to calculate the test time and perform the capacity test of the battery 8. Also in this case, the test time can be reduced because the overall current consumption value is increased.

The self-fire alarm receiver A stops the capacity test of the battery 8 when a specific terminal is operated during the capacity test of the battery 8 while the specific terminal is operating. Then, the capacity test of the battery 8 is prohibited. by this,
When a fire or an important signal related to the fire is received, the capacity of the standby power supply can be secured.

At this time, whether or not the capacity test of the battery 8 is stopped or prohibited and the type of the specific terminal can be set by operating the switch operation unit 4. For example, if "stop / prohibit" is set, if a terminal of the type registered in the storage unit 10 as the test stop terminal 10j operates during the test, the test is stopped and the test stop terminal 10j is set. During the operation of the terminal of the registered type, no test is performed even at the regular test time.

Next, the abnormality detection function of the self-fire alarm receiver A will be described. The self-fire alarm receiver A includes a monitoring current consumption value and an operating current consumption value of each terminal (see FIG. 3), a system monitoring current value and a maximum load current value (10a, 10a in FIG. 2).
b) is stored. In addition, a secondary current consumption detection circuit 6 is provided to detect the current value of the system. When the current value of the system exceeds a predetermined range with respect to the stored current value, it is determined that an abnormality has occurred. to decide.

For example, a range in which the current value during monitoring or operation can be determined to be normal is registered in advance in the abnormality determination criterion 10k of the storage unit 10 as a ratio (x%) to the current value. If the detected current value exceeds a value obtained by adding x% to the stored current value or does not reach a value obtained by subtracting x%, it is determined that an abnormality has occurred. This allows early detection of wiring insulation failure and terminal failure, leading to prevention of troubles and more efficient on-site adjustment.

When an abnormality is detected by comparing current values when a terminal is operated, the terminal and the input / output line can be specified. However, when the location where the abnormality occurs cannot be specified, the information processing circuit unit 1 connects a plurality of lines one by one by a signal input / output circuit individual switching circuit unit 3 including a relay, a transistor circuit, and the like. Identify the line where the error occurred. When it is determined that an abnormality has occurred, the input / output circuit corresponding to the location where the abnormality has occurred is disconnected. This can prevent the influence on other input / output lines.

FIG. 4 is a flowchart showing the above operation (100 to 106). When an error is detected (10
0) First, all the lines are disconnected (101) and connected one by one until an abnormality is detected (102, 10).
3). If the line in which the abnormality has occurred can be identified, the line is disconnected (104) and the abnormality information is stored (10).
5) The other lines are restored (106).

It is determined that an abnormality has occurred, and the stored abnormality information can be notified from the display / print / alarm sound output unit 5 which is a notification unit. Thereby, the occurrence of the abnormality can be clearly notified.

[0040]

As can be understood from the above description, the self-fire alarm receiver according to each of the first to ninth aspects of the present invention automatically performs a practical battery capacity check test. it can. At the same time, the current consumption can be reduced by alternately operating the battery and the AC power supply. Further, the test time based on the actual current consumption is determined in consideration of the operation of the terminal, and the battery test can be appropriately performed.

In particular, according to the present invention, the monitored current value and the maximum load current value of the system can be operated and input, so that an actually measured current value suitable for an actual site system can be set.
According to the third aspect, the battery capacity test can be performed by continuing the monitoring state, so that it is not necessary to connect a dummy load for the test. According to the fourth aspect, since the capacity value of the battery can be tested by storing the current value of the system, it is not necessary to connect a pseudo load for the test, and a more precise test can be performed.

According to the fifth aspect, since the time interval of the battery capacity test can be set, more efficient operation can be performed in accordance with the load of the actual system at the site, taking into account the battery charging time and the test time.

According to the sixth aspect, since the battery capacity test is performed based on the battery voltage drop rate, the test time can be shortened.
In the seventh aspect, the battery capacity test is performed based on the pseudo load and the monitored current value of the system, so that the test time can be reduced.

According to the eighth aspect, the capacity test of the battery and the operation of the specific terminal do not overlap with each other, so that the capacity of the backup power source can be ensured when an important signal is received. According to the ninth aspect, the presence / absence of suspension / prohibition of the battery capacity test and the terminal type of a specific terminal can be set, so that an operation suitable for each system can be performed.

In the self-fire alarm receiver according to any one of the tenth to thirteenth aspects, occurrence of an abnormality can be detected based on the current value of the system, so that an insulation failure of a wiring or a terminal failure can be detected early. Can prevent problems before they occur and lead to more efficient on-site adjustments.

In particular, in claim 11, a plurality of lines are
By connecting the lines line by line, the line in which the abnormality has occurred can be specified. According to the twelfth aspect, since the input / output circuit corresponding to the location where the abnormality has occurred is separated, influence on other input / output lines can be prevented. According to the thirteenth aspect, the occurrence of the abnormality can be clearly notified by the notification means.

[Brief description of the drawings]

FIG. 1 is a block diagram illustrating an example of a configuration of a self-fire alarm receiver according to the present invention.

FIG. 2 is a diagram illustrating an example of a configuration of a storage unit.

FIG. 3 is a diagram schematically showing information on a current value of each terminal.

FIG. 4 is a flowchart showing an example of the operation of the self-fire alarm receiver of the present invention.

[Explanation of symbols]

 A self-fire alarm receiver 1 information processing circuit section 4 switch operation section 5 display / print / alarm sound output section 6 secondary-side current consumption detection circuit section 7 power supply circuit section 8 battery 9 pseudo load connection circuit section 10 storage section

Claims (13)

[Claims] A self-fire alarm receiver comprising a plurality of terminals connected to each other to form a self-fire alarm system, comprising a battery as a standby power supply, and monitoring current consumption and operating current consumption of each terminal. Storing the monitored current value and the maximum load current value of the system when power is supplied from the battery, and based on the monitored current value and the maximum load current value of the system,
A self-fire alarm receiver which obtains a current consumption value within a predetermined test time and performs a capacity test of the battery with a pseudo load based on the current consumption value. 2. The self-fire alarm receiver according to claim 1, wherein the monitoring current value and the maximum load current value of the system can be stored by an operation input. 3. The capacity test of the battery is performed by continuing a monitoring state based on a current consumption value within a predetermined test time and a monitoring current value of the system instead of using the pseudo load. The self-fire alarm receiver according to claim 1 or 2, wherein: 4. A system for detecting and accumulating a current value of a system, wherein, instead of using the dummy load, the accumulated current value of the system becomes a consumed current value within a predetermined test time. The self-fire alarm receiver according to claim 1 or 2, wherein a capacity test of the battery is performed. 5. The battery according to claim 1, wherein the capacity test of the battery is periodically performed, and the test interval can be set. Fire alarm receiver. 6. The automatic fire alarm receiver according to claim 1, wherein a capacity test of the battery is performed based on a voltage drop rate of the battery within a predetermined time. 7. A battery capacity test is performed based on a current consumption value within a predetermined test time, a current consumption value of the pseudo load, and a monitoring current value of the system. The self-fire alarm receiver according to claim 1 or 2. 8. When a specific terminal is activated during the battery capacity test, the battery capacity test is stopped.
The self-fire alarm receiver according to any one of claims 1 to 7, wherein the capacity test of the battery is prohibited while the specific terminal is operating. 9. The presence or absence of suspension / prohibition of the battery capacity test,
9. The self-fire alarm receiver according to claim 8, wherein a terminal type of the specific terminal can be set. 10. A self-fire alarm receiver comprising a plurality of terminals connected to form a self-fire alarm system, comprising: a monitoring current consumption value and an operating current consumption value of each terminal; a system monitoring current value and a maximum load; A function of storing a current value and detecting a current value of the system; determining that an abnormality has occurred when the current value of the system exceeds a predetermined range with respect to the stored current value; A self-fire alarm receiver. 11. A plurality of lines connecting said plurality of terminals are connected, and said plurality of lines are connected one by one to specify a line in which an abnormality has occurred. Self-fire alarm receiver described in. 12. The self-fire alarm receiver according to claim 10, wherein when it is determined that the abnormality has occurred, the input / output circuit corresponding to the location where the abnormality has occurred is disconnected. 13. A system according to claim 10, further comprising a notifying unit, wherein when it is determined that the abnormality has occurred, abnormality information is stored to enable the notifying unit to perform the notification. 13. The self-fire alarm receiver according to any one of 12.