JP2008217739A - Abnormality detector - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide an abnormality detector high in operation reliability and capable of calling a user's attention in an early stage. <P>SOLUTION: The abnormality detector comprises a temperature sensor 1, a fire monitoring means 3, an environmental change detecting means 6, a change presence/absence detecting means 7 and a control means 8. Since a fire determination is made based on the state of the environmental change detecting means 6 and the state of the temperature sensor 1, malfunction caused by disturbance can be prevented, and the user can be notified early of an environmental change by the environmental change detecting means which detects a temperature change within a temperature range lower than the fire monitoring means. Since the state of the sensor is monitored based on the change state of the temperature sensor, a fault in the detecting function of the sensor can be detected. <P>COPYRIGHT: (C)2008,JPO&INPIT

Description

  The present invention relates to an anomaly detection device that detects a fire installed in a living space, and relates to an anomaly detection device that can improve operational reliability in the event of a fire and at the same time notify anomalies in environmental changes in the living space. is there.

  Conventionally, there are detectors that operate at a constant temperature, such as a constant temperature type and a differential type, and detectors that detect a fire by detecting a sudden temperature change.

  These detection devices are provided with only one predetermined detection level, and the possibility of malfunction cannot be denied.

  Further, the predetermined detection level is almost a fire confirmation level and is not detected as early as possible to alert the user.

  In addition, this type of detection device varies depending on the building, but the actual situation is that the operation reliability is ensured by the inspection and maintenance by the user periodically or irregularly. is there.

  However, if the user forgets to check or the abnormality detection device fails despite the inspection, the original function may not be exhibited in the event of a fire and a disaster may occur.

  This type of abnormality detection device includes, for example, a smoke detection element and a temperature detection element, and switches to a temperature detection element when the smoke detection element fails. (For example, refer to Patent Document 1).

  FIG. 8 shows a conventional composite fire detector and its system described in Patent Document 1. In FIG.

  As shown in FIG. 8, the projector includes a light projecting element 50 a, a light receiving element 50 b, a smoke detection element failure determination unit 51, and a switching determination unit 52.

JP-A-10-188155

  However, in the above-described conventional configuration, the smoke detection element failure determination unit 51 detects a failure because no current is flowing in the LED drive circuit, and functions whether or not to react to smoke even if current is flowing in the LED. Has the problem of not being monitored.

  The present invention solves the above-mentioned conventional problems, detects abnormalities in the detection function of the sensor to improve operation reliability, and adds the presence or absence of a prior environmental change to the fire determination condition to determine whether there is no malfunction. An object of the present invention is to provide an anomaly detection device that can provide notifications based on the situation, notify a user of environmental changes at an early stage, and call attention.

  In order to solve the conventional problem, the abnormality detection apparatus of the present invention includes a temperature sensor and a comparison unit A that detects that a predetermined time has passed since the temperature of the temperature sensor is equal to or higher than a predetermined detection temperature TA. There is a change by comparing the temperature rise of the temperature sensor at a predetermined time with a predetermined temperature increase A and a predetermined temperature increase B in a temperature region between the predetermined detection temperature TB and the predetermined detection temperature TC. An environmental change detection means having a temperature rise detection means for detecting, a comparison means B for detecting that the temperature of the temperature sensor has passed a predetermined detection temperature TB for a predetermined time, and a temperature equal to or lower than the predetermined detection temperature TC Change presence / absence detection means for detecting the presence / absence of a change in temperature of the temperature sensor in the region, transfer output means for transferring the abnormality to the outside, notification means for notifying the abnormality, the fire monitoring means, Sakai change detecting means, the transfer paper output unit based on the detection result of said change detecting means, in which a control means for controlling the informing means.

  As a result, even in an abnormal environmental condition that does not lead to a fire determination by the fire monitoring means, the environmental change is detected at an early stage by the temperature rise B and the comparing means B of the environmental change detecting means, and the user is warned early. Notification can be performed. In addition, since the state of the temperature sensor is monitored by the change presence / absence detection means in a temperature region where the temperature disturbance of the living space is large, the malfunction of the detection function of the sensor itself can be detected, and the operation reliability can be ensured.

  The abnormality detection device of the present invention detects an abnormality in the detection function of the sensor to improve operation reliability, and adds a presence / absence of a prior environmental change to the fire determination condition to notify based on a determination that there is no malfunction. It is another object of the present invention to provide an anomaly detection device that can inform the user of changes in the environment at an early stage and call attention.

  The first invention includes a temperature monitoring device, a fire monitoring device having a comparison device A for detecting that a predetermined time has passed when the temperature of the temperature sensor is equal to or higher than a predetermined detection temperature TA, a predetermined detection temperature TB, and a predetermined detection temperature TB. A temperature rise detecting means for comparing the temperature rise of the temperature sensor at a predetermined time with a predetermined temperature rise A and a predetermined temperature rise B in the temperature region between the detected temperatures TC and detecting the presence of a change. An environmental change detection means having a comparison means B for detecting that a predetermined time has passed a predetermined detection temperature TB, and whether there is a change in temperature of the temperature sensor in a temperature region below the predetermined detection temperature TC. Change detection means for detecting, transmission output means for transferring abnormality to the outside, notification means for notifying abnormality, detection of the fire monitoring means, environment change detection means, change presence detection means By providing the transfer output means and the control means for controlling the notification means based on the result, it is possible to detect the failure of the detection function of the sensor and to improve the operation reliability, and to detect the environmental change and the user Can be alerted early on.

  In the second invention, in particular, the predetermined temperature TA of the first invention is a temperature for determining fire, and the predetermined detection temperature TB is an upper limit of a temperature region that is unlikely to exist in a normal living space. The detection temperature TC is the upper limit of the temperature region existing in a normal living space, and the predetermined temperature TA> the predetermined detection temperature TB> the predetermined detection temperature TC, the temperature region where the temperature disturbance of the living space is large. Therefore, since the detection function itself of the temperature sensor is monitored, the failure of the detection function of the sensor can be accurately detected.

  In addition, since the environmental change is detected in a temperature range where the temperature disturbance of the normal living space is small, the environmental change can be detected accurately.

  In a third aspect of the invention, in particular, the control means of the first aspect of the invention detects that the comparison means A of the fire monitoring means detects that the temperature of the temperature sensor is equal to or higher than the predetermined detection temperature TA and that a predetermined time has elapsed. When the presence of change in the temperature rise detection means of the environmental change detection means is detected, a fire is determined and output to the transfer output means and the notification means, so that a predetermined temperature A is suddenly caused by disturbance. Even if the state is exceeded, malfunction can be prevented.

According to a fourth aspect of the invention, in particular, the control means of the first aspect of the invention is such that when the detection result of the environmental change detection means is a temperature rise at a predetermined time> a predetermined temperature rise B, and the temperature of the temperature sensor is By outputting a predetermined detection temperature TB to the transfer output means and the notification means when a predetermined time elapses, the inclination is detected in a temperature region that is difficult to occur in a normal living space, so that an environmental change is accurately detected. And can inform the user early.
Moreover, if the temperature range in which the apparatus can be used is equal to or lower than the predetermined detection temperature TB, the apparatus can be used, and an apparatus having a wide use range can be realized.

  According to a fifth aspect of the invention, in particular, when the control means does not change the change presence / absence detecting means, the control means determines that the sensor is abnormal and outputs the detected abnormality to the transfer output means and the notification means. Since it did in this way, since the failure of the detection function of a sensor can be detected and a user is alert | reported, operation reliability maintenance can be performed.

  In the sixth invention, in particular, the transfer output means and the notification means according to any one of the first or third to fifth inventions correspond to the fire monitoring means, the environment change detection means, and the change presence / absence detection means, respectively. Since the transfer output and notification are performed, it is possible to clearly notify the user of fire determination, early notification, and temperature sensor failure.

  A seventh invention is a program for causing a computer to execute at least a part of the first to sixth inventions.

  Since it is a program, it is possible to easily realize at least a part of the abnormality detection device of the present invention by operating hardware resources such as an electric / information device, a computer, and a server.

  Hereinafter, embodiments of the present invention will be described with reference to the drawings. Note that the present invention is not limited to the present embodiment.

(Embodiment 1)
FIG. 1 shows a block diagram of an abnormality detection apparatus according to Embodiment 1 of the present invention.

  In FIG. 1, the abnormality detection device 11 includes fire monitoring means 3, environment change detection means 6, change presence / absence detection means 7, and alarm means 11.

  The temperature sensor 1 is composed of, for example, a temperature sensitive element whose resistance changes with temperature, and is built in the abnormality detection device 11.

  The fire monitoring means 3 has a comparison means A2, and this comparison means A2 detects whether or not the temperature sensor 1 has exceeded a predetermined detection temperature TA (temperature for determining fire determination) for a predetermined time, and the detection result is controlled by the control means. 8 is provided.

  The environment change detection means 6 has a temperature rise detection means 4 and a comparison means B5. The temperature rise detection means 4 compares the temperature rise of the temperature sensor at a predetermined time with the predetermined temperature rise A and the predetermined temperature rise B to determine whether or not there is a change in temperature. Whether or not B is exceeded is detected, and the detection result is provided to the control means 8.

  The comparison unit B5 has a predetermined detection temperature TB, detects whether the temperature of the temperature sensor is equal to or higher than the predetermined detection temperature TB, and provides a detection result to the control unit 8.

  The predetermined detection temperature TB is set to the upper limit of a temperature region that is unlikely to exist in a normal living space.

The change presence / absence detection means 7 has a predetermined detection temperature TC set as an upper limit of a temperature region existing in a normal living space. Since the temperature of the temperature sensor 1 is a temperature region of the temperature disturbance of the living space, the temperature such as a temperature change due to the influence of the air conditioner is detected in addition to the change in the room temperature.
When the temperature change of the temperature sensor is not detected for a predetermined time, the detection result is provided to the control means 8 as no change (sensor malfunction).

  The transfer output means 9 is for providing abnormality occurrence information to a centralized monitoring device such as a fire central monitoring panel (not shown).

The notification means 10 is built in the abnormality detection device 11 and performs notification.
The control unit 8 receives the detection results of the fire monitoring unit 3, the environment change detection unit 6, and the change presence / absence detection unit 7 and outputs an operation signal to the transfer output unit 9 and the notification unit 10.

  FIG. 2 is a diagram showing the relationship between the detection means of the abnormality detection device and the predetermined detection temperature in the first embodiment of the present invention.

  The predetermined detection temperature TA is the temperature at which the comparison means A of the fire monitoring means 3 detects the fire. The predetermined detection temperature TB is the upper limit of the monitoring region temperature of the environment change detection means 6. The predetermined detection temperature TC is constituted by the upper limit temperature of the change presence / absence detection means.

  Hereinafter, the operation and action of the abnormality detection apparatus configured as described above will be described with reference to FIGS. 1, 3, 4, 5, and 6.

First, when the temperature sensor 1 is, for example, in a normal environment, the change presence / absence detection means 7 detects the room temperature of the normal living space, and provides the control means 8 with a change detection result due to a change in the room temperature. . (Figure 3)
Since the detection results from the fire monitoring means 3, the environment change detection means 6, and the change presence / absence detection means 7 are normal, the control means 8 does not send out the operation output to the transfer output means 9 and the notification means 10.

Next, when the temperature of the temperature sensor 1 suddenly rises in the area of the environmental change detection means 6 (FIG. 4), the temperature rise detection means 4 compares the temperature rise with the temperature rise A and the temperature rise B. To do.
Next, when the temperature rise of the temperature sensor 1 exceeds a predetermined temperature rise A, a change is provided to the control means 8.

  When the temperature rise of the temperature sensor exceeds a predetermined temperature rise B, the environmental change detection means 6 provides the detection result to the control means 8, and the control means 8 outputs the operation to the transfer output means 9 and the notification means 10.

  Next, when the temperature of the temperature sensor 1 exceeds the predetermined detection temperature TB of the environment change detection means 6 (FIG. 5), if the comparison means B5 detects that a predetermined time has elapsed, the control means 8 similarly shifts. Operation output is performed to the report output means 9 and the notification means 10.

Next, when the temperature of the temperature sensor 1 exceeds the predetermined detection means TA of the fire monitoring means 3 (FIG. 6), when the comparison means A2 detects that a predetermined time has elapsed, the detection result is sent to the control means 8. provide.
Since the control means 8 has passed the change of the environment change detection means 6, the control means 8 outputs an operation to the transfer output means 9 and the notification means 10.

FIG. 7 is a flowchart showing the operation of the abnormality detection apparatus according to Embodiment 1 of the present invention.
This is an example when the predetermined detection temperature TA of the fire monitoring means is 80 ° C. and the predetermined detection temperature TB of the environment change detection means is 60 ° C.

S1 → S2 → S3 is a flow in a normal state.
Since S1 → S5 always passes when a fire occurs, the environment change detection means enters a state of change, and this change state is confirmed (S9) to prevent malfunction even if there is a sudden 80 ° C disturbance. Can do.

  As described above, in the present embodiment, fire monitoring means having a predetermined detection temperature TA, environment change detection means having a predetermined detection temperature TB, and change presence / absence detection having a predetermined detection temperature TC And a control means for controlling with the detection results, providing a monitoring temperature region for each detection means, and detecting with each optimum detection means, thereby detecting the detection function failure of the sensor, the environment Early detection of changes and fire determination without malfunction.

  Moreover, the same effect can be exhibited also in other sensors, such as a smoke sensor and a CO sensor, in the temperature sensor of the present embodiment.

  As described above, the abnormality detection device according to the present invention is used in a place where a failure of a sensor is detected, operation reliability is high, environmental change can be detected early, and a system with high operation reliability without malfunction is required. can do.

The block diagram of the abnormality detection apparatus in Embodiment 1 of this invention The figure which shows the relationship between the detection means of the abnormality detection apparatus in Embodiment 1 of this invention, and predetermined | prescribed detection temperature The figure which shows the detection state of the temperature of the sensor of the abnormality detection apparatus in Embodiment 1 of this invention, and a change presence-and-absence detection means. The figure which shows the temperature rise of the abnormality detection apparatus in Embodiment 1 of this invention, and the detection state of an environmental change detection means The figure which shows the temperature rise of the abnormality detection apparatus in Embodiment 1 of this invention, and the detection state of an environmental change detection means The figure which shows the temperature rise of the abnormality detection apparatus in Embodiment 1 of this invention, and the detection state of a fire monitoring means The flowchart which shows operation | movement of the abnormality detection apparatus in Embodiment 1 of this invention. Block diagram of conventional combined fire detector and its system

Explanation of symbols

1 Temperature sensor 2 Comparison means A
3 Fire monitoring means 4 Temperature rise detection means 5 Comparison means B
6 Environment change detection means 7 Change presence / absence detection means 8 Control means 9 Transfer output means 10 Notification means 11 Abnormality detection device

Claims (7)

A fire monitoring means having a temperature sensor, a comparison means A for detecting that a predetermined time has passed when the temperature of the temperature sensor is equal to or higher than a predetermined detection temperature TA, and between the predetermined detection temperature TB and the predetermined detection temperature TC In the temperature region, a temperature rise detecting means for detecting a change by comparing a temperature rise of the temperature sensor at a predetermined time with a predetermined temperature rise A and a predetermined temperature rise B, and the temperature of the temperature sensor is a predetermined detected temperature. Environment change detection means having comparison means B for detecting that TB has passed for a predetermined time, and change presence / absence detection means for detecting presence / absence of temperature change of the temperature sensor in a temperature region below the predetermined detection temperature TC Based on the detection results of the notification output means for reporting the abnormality to the outside, the notification means for notifying the abnormality, the fire monitoring means, the environment change detection means, and the change presence / absence detection means. The transfer paper output unit, the abnormality detection device and a control means for controlling said notification means Te. The predetermined temperature TA is a temperature for determining fire, the predetermined detection temperature TB is an upper limit of a temperature region that is unlikely to exist in a normal living space, and the predetermined detection temperature TC exists in a normal living space. 2. The abnormality detection device according to claim 1, wherein an upper limit of a temperature range is set such that the predetermined temperature TA> the predetermined detection temperature TB> the predetermined detection temperature TC. The control means detects that the comparison means A of the fire monitoring means detects that the temperature of the temperature sensor is equal to or higher than the predetermined detection temperature TA, and that the temperature rise detection means of the environment change detection means. The abnormality detection device according to claim 1, wherein when the presence of a change is detected, a fire is judged and output to the message output means and the notification means. The control means is configured such that when the detection result of the environmental change detection means is temperature rise at a predetermined time> predetermined temperature rise B and when the temperature of the temperature sensor has passed a predetermined detection temperature TB for a predetermined time. The abnormality detection apparatus according to claim 1, wherein the abnormality detection device outputs the information to a transfer output unit and the notification unit. 2. The abnormality detection apparatus according to 1, wherein the control unit determines that the sensor is abnormal when the change presence / absence detection unit is not changed and outputs the determination to the transfer output unit and the notification unit. The said report output means and the said alerting | reporting means perform the report output corresponding to each of the said fire monitoring means, the said environmental change detection means, and the said change presence-and-absence detection means, and alerting | reporting. The abnormality detection device described in 1. The program for making a computer perform at least one part of the abnormality detection apparatus of Claims 1-6.

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