JPH06139482A - Environment monitor - Google Patents

Abstract

PURPOSE:To quickly decide generation of abnormality such as a fire, etc., and also, to immediately grasp whether a result of decision of abnormality such as a fire, etc., is reliable or not without imposing a burden to an operator. CONSTITUTION:A central processing part 2 is provided with an abnormality deciding part 7 for deciding whether abnormality is generated or not by a prescribed abnormality decision reference, based on information from one certain terminal equipment, and an abnormality accuracy inferring part 8 for inferring a degree of conviction of abnormality for showing an index for to what extent a result of decision of the abnormality deciding part 7 has reliability based on information from plural terminal equipments. When it is decided that abnormality is generated by the abnormality deciding part 7, an output related to generation of abnormality is executed from an output/operating part 5, and also, in addition to the output, an output related to a degree of conviction of abnormality inferred by an abnormality accuracy inferring part 8 is also executed, and an operator can look at both of the output related to generation of abnormality and the output related to the degree of conviction of abnormality.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an environment monitoring device for monitoring whether an abnormality such as a fire has occurred in a predetermined environment.

[0002]

2. Description of the Related Art Conventionally, a self-ignition alarm facility is known as an environment monitoring device for monitoring whether an abnormality such as a fire has occurred in the environment of a building or the like. This type of self-warning equipment is generally shown in FIG.
As shown in, the analog sensors E1 to En are configured as an analog sensor system connected to the transmission line L, and the central device 100 sequentially outputs analog data from the analog sensors E1 to En connected to the transmission line L. Fires are collected based on the analog data from the analog sensors E1 to En collected by polling. Here, each of the analog sensors E1 to En is
Each has a unique address, and the central unit 100
This unique address can be used to identify each analog sensor when polling.

In such an environment monitoring device, that is, a self-warning facility, when analog data from an analog sensor is sent to the central device 100, the central device 100 determines whether the value of the analog data is a predetermined threshold value or more. To judge. When it is determined that the value is equal to or larger than the predetermined threshold value, the central device 100 displays the number of the analog sensor (for example, the number corresponding to the installation location of this analog sensor) in the district window of the display unit. This allows the operator (for example, fire prevention manager) to know that a fire seems to have occurred in this area.

[0004]

However, in the conventional environment monitoring device as described above, when analog data is sent from one analog sensor, a fire judgment is made based only on the analog data from this analog sensor. However, there was a problem that the fire judgment result was not reliable. That is, conventionally, when the number of a certain analog sensor is displayed on the district window, the operator can judge the situation only from this display, and it is highly reliable to determine whether a fire really occurred in the district of this number. I wasn't sure. Therefore, the operator needs to go to the site where the alarm is issued and directly check it visually, or perform an operation such as checking the analog sensor in the immediate vicinity of the place where the fire alarm is issued by using a sensor monitor to confirm. However, there is a drawback in that the judgment cannot be made quickly and reliably.

According to the present invention, it is possible to quickly determine the occurrence of an abnormality such as a fire, and the operator is not burdened with whether or not the determination result of the abnormality such as a fire is reliable. The purpose is to provide an environment monitoring device that can be immediately grasped.

[0006]

In order to achieve the above object, the invention according to claim 1 is an environment for monitoring whether or not the environment is abnormal based on data and information from a terminal. In the monitoring device, based on the data and information from a plurality of terminals, an abnormality judging means for judging whether or not an abnormality has occurred according to a predetermined abnormality judgment standard based on data and information from a certain terminal. An abnormality probability indexing unit for indexing an abnormality certainty factor indicating an index indicating how reliable the determination result of the abnormality determination unit is. The invention according to claim 2 is
When it is determined by the abnormality determining means that an abnormality has occurred, an output regarding the occurrence of the abnormality is made, and
In addition to the output, an output related to the certainty factor of the abnormality calculated by the abnormality probability calculating means is performed. Accordingly, in the inventions according to claims 1 to 4, it is possible to quickly determine whether or not an abnormality such as a fire has occurred and whether the result of the determination of the abnormality such as a fire is reliable or not. The operator can immediately grasp the information without burdening the operator.

The inventions according to claims 5 and 6 are:
The environment monitoring apparatus according to claim 1, further comprising an operating means for giving an instruction for outputting the certainty factor of abnormality, and the instruction for outputting the certainty factor of abnormality is inputted from the operating means. Occasionally, regardless of whether or not it is determined that an abnormality has occurred, an output regarding the certainty factor of the abnormality calculated by the abnormality certainty factor calculation means is performed. With this, it is possible to manually display and output the degree of certainty of an abnormality at any desired time, and based on this display output, maintenance of the entire system, etc.
It is also possible to make a comprehensive judgment of the entire system.

Further, in the invention according to claim 7, in the environment monitoring device according to claim 1, when a plurality of terminal devices include analog sensors, the analog data from the analog sensors are converted into analog sensor data. Compared with the accuracy judgment standard set lower than the abnormality judgment standard, the feature is that the number of analog sensors that output analog data of a size exceeding the accuracy judgment standard is added to the certainty of abnormality. There is. Although this does not reach the detection level of the occurrence of anomalies (precursor of a fire or the occurrence of a fire), it is possible to determine how many sensors have detected some anomalies, and based on this number, the occurrence of anomalies ( The reliability of the sign of a fire or the occurrence of a fire) can be evaluated.

Further, in the invention according to claim 8, in the environment monitoring device according to claim 1, when a plurality of terminals include a terminal to which an artificial input is made, the input from the terminal is performed. When there is, a feature is that a value obtained by weighting this input is added to the certainty factor of abnormality. The reliability of the abnormality can be made more reliable by calculating the reliability of the abnormality in consideration of information from a transmitter or a fire confirmation input device that is artificially input.

The invention according to claim 9 is characterized in that, in the environment monitoring device according to claim 2 or 5, the certainty factor of the abnormality is displayed and output as a numerical value.
In particular, the invention according to claim 10 is characterized in that the certainty factor of abnormality is graphically displayed and output by the frequency distribution of the detection level of the terminal. This makes it possible to more intuitively grasp the degree of certainty of the abnormality.

[0011]

Embodiments of the present invention will be described below with reference to the drawings. FIG. 1 is a block diagram of an embodiment of the environment monitoring apparatus according to the present invention. In the following, for convenience of explanation, the environment monitoring device will be described as monitoring the occurrence of a fire. Referring to FIG. 1, terminals D1 to Dz are connected to the transmission line L. The central apparatus 1 also includes a central processing unit 2 that controls the overall processing, a storage unit 3 that stores data such as programs and processing results necessary for controlling the central processing unit 2, and a terminal via a transmission line L. It has a transmission unit 4 for transmitting data to and from the devices D1 to Dz, and an output / operation unit 5 having an operation function and an output function for outputting the processing result of the central processing unit 2 and the like. .

Here, as the terminals D1 to Dz, an analog sensor can be used, a fire detector other than the analog sensor can be used, and further,
It is also possible to use a repeater or the like for the control terminal. For example, the terminals D1 to Di are analog sensors, the terminals Dj to Dm are fire detectors other than analog sensors, and the terminals Dn to Dz are transmitters or fire confirmation input devices connected to the transmission line L via relays. Can be configured. Also, the terminal device D1
When ~ Di are analog sensors, these individual analog sensors may be of different types. For example, the terminal device D1 may be a smoke sensor, and the terminal device D2 may be a heat sensor. Further, each analog sensor is installed, for example, in each district, and a number corresponding to the place where each analog sensor is installed is attached in advance. Further, fire detectors, repeaters, etc. other than the analog sensor are also installed at predetermined locations (the same location as the analog sensor may be used), like the analog sensor.

Also in this embodiment, the central processing unit 2 of the central device 1 sends a command to the transmission unit 4 in accordance with the program stored in the storage unit 3, and the terminal device D1 connected to the transmission line L. The data from ~ Dz is collected by sequential polling. Here, each terminal device D1
Dz has a unique address like the sensor of the conventional device described above, and the central processing unit 2 can identify each terminal device by using this unique address when performing polling. .

By the way, the central processing unit 2 of this embodiment determines whether or not an abnormality (a sign of a fire or a fire in this embodiment) has occurred based on data and information from a certain terminal device. Abnormality determination unit 7 that makes a determination based on the determination criteria, and abnormality determination unit 7 that makes a determination based on data and information from a plurality of terminals
An abnormality probability indexing unit 8 for indexing the reliability of the abnormality indicating the reliability of the determination result, that is, the index of the certainty.

Here, the abnormality judging section 7 is provided with each of the terminals D1 to D1.
Whether or not an abnormality has occurred is determined according to the type of Dz and the like. That is, when the terminal device is an analog sensor, an abnormality alarm (preliminary alarm / fire alarm) level V ₁ is set as an abnormality determination standard, and when the analog data value exceeds this level V ₁ , an abnormality (fire occurrence) occurs. Sign /
It detects when a fire) has occurred. In addition, the terminal device is a conventional type ON / OF other than an analog sensor.
In the case of an F type fire detector, since the fire judgment is made inside this detector, the result of the fire judgment from this terminal is adopted as it is as the above-mentioned abnormality judgment standard, and the fire from this terminal is detected. When the judgment information indicating that the fire has occurred is sent, it is detected as a fire. Further, when the terminal device is an artificial input device, for example, a transmitter connected to the transmission line L via a repeater, the information indicating whether or not there is an artificial input from the terminal device. It is used as a criterion for abnormality, and when the information indicating that there is an input from this terminal is sent, it is detected as a fire has occurred. Information on whether or not there is an artificial input from the device is used as an abnormality determination standard, and various controls based on the fire that have already been input (district bell stop release, transfer stop release, movement of smoke prevention and smoke emission terminal devices) The control stop is released).

The abnormality probability indexing unit 8 also determines the confidence factor according to the type of each of the plurality of terminals when determining the confidence factor of the abnormality based on the data and information from the plurality of terminals. Contribution components are calculated. That is, when a plurality of terminals include an analog sensor, the level V of the abnormal alarm (preliminary alarm / fire alarm) as an abnormality determination standard is applied to the analog data from the analog sensor.
_The accuracy determination level V ₂ set lower than ₁ (that is, with higher sensitivity) is used, and the certainty that the number of analog sensors that output analog data of a size exceeding this accuracy determination level V ₂ is abnormal. Is added to. When a certain degree of certainty of such an abnormality and the above-mentioned abnormality determination are performed, a plurality of analog sensors are used, and when the types (smoke, heat, etc.) of these analog sensors are different from each other, the abnormality The alarm (preliminary alarm / fire alarm) level V ₁ and the accuracy determination level V ₂ are also set as different for each type of analog sensor. For example, when the analog sensor D1 is a smoke sensor, V ₁₁ and V ₂₁ are set as the judgment levels V ₁ and V ₂ for the smoke sensor, and when the analog sensor D ₂ is a thermal sensor, the judgment for this is made. V ₁₂ and V ₂₂ are set as the levels V ₁ and V ₂ . Further, even if the analog sensors of the same type have significantly different installation environments, the abnormality alarm level V ₁ and the accuracy determination level V ₂ can be set differently.

More specifically, if the analog sensor is a smoke sensor and the preliminary alarm is output at a smoke concentration of 5% / m, the accuracy determination level V ₂ is 5% / m or less. It is preferable to set it to a threshold value. For example, if it is set to 2.5% / m and only the fire alarm is output at a smoke concentration of 10% / m, the final determination level V ₂ is 10% / m or less. It is preferable to set the threshold value, for example, 5% / m. If the analog sensor is a thermal analog sensor and the preliminary alarm is output at a temperature of 60 ° C., the accuracy determination level V ₂ is 60 ° C. or less, for example, 5
It is preferable to set the temperature to about 0 ° C. Further, for those that judge the occurrence of a fire based on the difference between the smoke sensors, if the preliminary alarm is a smoke concentration increase rate of 1.25% / m / min, this is the accuracy determination level V _2. 1.25% / m
It is preferable to set it to a value equal to or less than 1 minute, preferably about 1% / m / minute. V ₂ is set in a similar manner even for the case where a fire is judged based on the difference between the thermal sensors.

When a plurality of terminals include a conventional ON / OFF type fire detector other than an analog sensor, the fire judgment is made inside the detector, and the fire judgment result is obtained. The number of detectors instructing to start a fire is added to the certainty factor of the abnormality. Alternatively, the added value can be weighted according to the fire judgment of the fire detector (high sensitivity is small and low sensitivity is large). In addition, when a plurality of terminals include a transmitter or a fire confirmation input device connected to the transmission line L via a repeater, when the artificial input information is sent from these, Since the input of is artificial and has a high certainty factor, it is added with the certainty factor to the certainty factor.

The abnormality probability indexing unit 8 is connected to the transmission line L when the abnormality determining unit 7 determines that an abnormality has occurred based on the data and information from one terminal. It is possible to determine the certainty factor of the abnormality based on the data and information from the terminal units D1 to Dz of the above, and to determine the abnormality of the terminal unit, for example, the terminal unit having a close position, such as the same group. It is also possible to determine the certainty factor of an abnormality based only on the data and information from the terminal to which it belongs.

FIG. 2 is a diagram showing a concrete configuration example of the output / operation unit 5. Referring to FIG. 2, this output / operation unit 5
Is provided with an abnormality representative lamp 10, a first indicator 11, a second indicator 12, an abnormality accuracy indicator 13, and a sound generator 14 as output parts, and a sound stop switch 15 and a district sound. A stop switch 16, a recovery switch 17, and an abnormality probability display switch 18 are provided as operation units. When the data and information from a certain terminal device satisfy the abnormality judgment standard, the central processing unit 2 detects it as an abnormality (a sign of a fire or a fire), and the number of this terminal device, more specifically, this terminal device's number. The number associated with the installation location is displayed on the first display 11 or the second display 12 of the output unit. Note that this display processing is described in JP-A-63-1.
The detailed description is given in Japanese Patent No. 5396, and in consideration of the case where a plurality of abnormality detections (fire detections) are made from a plurality of terminal devices in the same manner as the content disclosed in this publication, the first indicator 11 is provided at the output unit. And the second display 12 are provided. That is, for example, first, when the analog data from the analog sensor D1 exceeds the preliminary alarm level V ₁₁ ,
As the first report of the fire occurrence, when the number of this analog sensor D1 is displayed on the first display 11 and then the analog data from another analog sensor, for example D2, exceeds its preliminary alarm level V ₁₂ , a fire occurs. As a second report of the occurrence, the number of the analog sensor D2 is displayed and output on the second display 12.

Further, in this embodiment, the central processing unit 2 is
Separately from the display output to the first display 11 and the second display 12, the confidence factor indexed by the abnormality probability indexing unit 8 is displayed and output to the fire accuracy indicator 13 of the output unit. Has become. Further, in the configuration of FIG. 2, the sound generator 14 is for generating a predetermined sound when it is determined that an abnormality has occurred, and the sound stop switch 15 outputs the sound from the sound generator 14. It is for stopping this when the sound is being output, the district sound stop switch 16 is for stopping this when the sound for the district is being output, and the restoration switch 17 is abnormal. Is a switch for restoring the system to the original state when the
This is a switch for manually displaying the reliability of the abnormality on the abnormality probability indicator 13.

That is, normally, when the abnormality probability indexing unit 8 determines that an abnormality has occurred based on the data and information from one terminal unit having the abnormality determining unit 7, for example, this abnormality determining unit 7 However, even if the abnormality determination unit 7 has not determined that an abnormality has occurred, the abnormality accuracy display switch 18 is pressed to activate the abnormality accuracy index. Departure 8
Is configured to be manually activated. Note that, for example, in the case of being automatically activated by an instruction from the abnormality determination unit 7, since one terminal device determined to have an abnormality has been identified, the abnormality accuracy indexing unit 8 sets the transmission line L to the transmission line L. Although it is possible to calculate the certainty factor of an abnormality based on the data and information from all the connected terminals, a plurality of terminals that are in a close relationship (in a group relationship) with the one terminal that is determined to have an abnormality It is also possible to determine the certainty factor of abnormality based only on the data and information from the terminal. On the other hand, when the switch 18 is activated by being pressed, it may not be determined that an abnormality has occurred. Therefore, in general, the reliability of the abnormality should be determined based on the data and information from all the terminals. It has become. Of course, even in the case of manual activation, when it is determined that an abnormality has occurred, the confidence factor of the abnormality can be determined based only on the data and information from the terminals that have a group relationship with the terminal that is determined to have an abnormality. You can also figure out. As described above, since the abnormality confidence factor in the normal state is output by the manual activation, maintenance work such as adjustment of the accuracy determination level V ₂ can be easily performed.

Next, the operation of the environment monitoring device having such a configuration will be described. The central processing unit 2 of the central device 1 sends a command to the transmission unit 4 according to the program stored in the storage unit 3, and the terminal devices D1 to D connected to the transmission line L are connected.
Data is collected sequentially from z in a known manner, ie by polling. When the data from each of the terminals D1 to Dz is collected, the central processing unit 2 makes an abnormality judgment, for example, a fire judgment based on these data.

Now, for example, it is assumed that the terminals D1 to Di are analog sensors, the terminals Dj to Dm are ON / OFF type fire detectors other than the analog sensors, and the terminals Dn to Dz are via relays. If it is a transmitter connected to the transmission line L or a fire confirmation input device, when analog data from any of the analog sensors, for example D1, exceeds its preliminary alarm level V ₁₁ , or other than the analog sensor. When any one of the fire detectors, for example, the judgment result of the fire occurrence from Dj is notified, or when there is an input from the transmitter or the fire confirmation input device, for example, Dn, the abnormality judging unit 7 of the central processing unit 2 Is this terminal D
The number of the terminal device D1, or Dj, or Dn associated with the place where 1, or Dj or Dn is installed is displayed on the district window, that is, the first display device 11.

At this time, the abnormality probability indexing unit 8 of the central processing unit 2 is based on, for example, data or information from all the terminal units D1 to Dz, or the terminal units D1, or Dj ,.
Alternatively, the certainty factor of the abnormality is calculated based on the data and information from the terminal device having a close relationship with Dn (for example, having a group relationship). That is, when an analog sensor is included in a plurality of terminals, with respect to the analog data from one analog sensor, when the analog data exceeds the accuracy judgment level V ₂ , the certainty factor of the fire is weighted. , For example, "2" is counted. Also,
When a plurality of terminals include fire detectors other than analog sensors, one fire detector, for example, fire judgment result information from Dj, is used when the fire detection result is detected when this information is a fire occurrence detection result. The certainty factor is counted as "1". In addition, when multiple terminals include transmitters and fire confirmation input devices via relays, the input from these is artificial and the confidence that it is a fire is very high. Therefore, it is possible to give a weight to the certainty factor of the fire and count it as, for example, "90". As a more specific example, when the abnormality probability indexing unit 8 is configured to index the reliability of abnormality based on the data and information from all the terminals D1 to Dz, for example, the analog sensor D
When the analog data from 1 exceeds the preliminary alarm level V ₁₁ and is judged to be abnormal by the abnormality judging section 7, and the number of this sensor D1 is displayed on the first display 11, the analog sensors D1 to Di are detected. only data from three analog sensors out has exceeded the fire probability determination level V ₂ corresponding, one terminal device among the fire detector Dj~Dm other than analog sensors D1～Di, for example fire from Dj When the judgment result indicates that a fire has occurred, and if there is a transmitter input from one terminal device, for example, Dn via a relay device, the reliability of the fire is (3
+ 2 + 90) = 95 and counted. The certainty factor of the fire determined in this way is displayed on the abnormality certainty determination indicator 13.

By the way, since the degree of certainty of abnormality changes from moment to moment, it is necessary to periodically update and redisplay it. As the update cycle, the terminal devices D1 to D
It suffices if it is about the z polling cycle. Therefore,
For example, when one cycle of transmission polling is completed, the abnormality probability indexing unit 8 is activated again, the fire confidence index is indexed again, and the display on the display 13 can be updated.

The display of the fire certainty factor may be stopped, for example, when the recovery switch 17 is pressed, or may be output when the fire alarm including the preliminary alarm is recovered. In this way, a series of abnormality determination processing can be performed.

As can be seen from the above description, when the plurality of terminals are analog sensors, the certainty factor of this abnormality reaches the detection level of the abnormality occurrence (precursor of fire / fire occurrence). However, it is to determine how many sensors have detected some abnormalities, and to evaluate the reliability of abnormal occurrence (precursor of fire / fire occurrence) based on this number. Therefore, in the present invention, the abnormality reliability indexing unit 8 basically determines the abnormality certainty factor in order to supplement the reliability of the abnormality occurrence determination by the abnormality determining unit 7. In other words, the abnormality determination unit 7
It is possible to promptly notify the operator of this by, for example, displaying the result of occurrence of the abnormality as described above, for example, by promptly determining the occurrence of the abnormality. At the same time, the abnormality probability indexing unit 8 calculates the certainty factor of the abnormality, and the certainty factor is displayed and output separately from the determination result of the abnormality occurrence, so that the abnormality occurrence determination that is detected promptly can be performed. The operator can be immediately notified of whether or not it is reliable. In addition to analog sensors, fire detectors other than analog sensors,
Furthermore, the reliability of the abnormality is made more reliable by calculating the reliability of the abnormality by also taking into consideration the information from the transmitter and the fire confirmation input device that are artificially input. You can

As described above, in the present invention, the determination of the occurrence of an abnormality (for example, a fire) and the determination of the certainty factor of the abnormality are complementary, and both results are separately output, for example, displayed. Thus, it is possible to promptly inform the operator of the occurrence of the abnormality and to promptly inform the operator whether or not the abnormality occurrence determination is reliable. For now,
If only the abnormality occurrence judgment is made, the occurrence of the abnormality can be promptly judged, but it is unknown to the operator whether or not this judgment is reliable. Moreover, if only the degree of certainty of abnormality is calculated, for example, the occurrence of a local fire cannot be detected quickly.

However, for the purpose other than the fire occurrence determination, for example, for the purpose of maintenance and inspection of the entire system, it is conceivable that the degree of certainty of abnormality is calculated and displayed. Although the abnormality probability display switch 18 can be used when a fire is determined as described above, it is provided in consideration of being used for maintenance, inspection, etc. When is operated, the abnormality probability indexing section 8 can independently determine the reliability of the abnormality, independently of the abnormality determining section 7. That is, when the operator presses the abnormality probability display switch 18, the abnormality probability indexing unit 8 is activated, and the abnormality accuracy indexing unit 8 operates on all the terminal devices D1 to Dz connected to the transmission line L. The degree of certainty of abnormality is calculated, and the result is displayed and output on the display unit 13. After that,
For example, each time one cycle of transmission polling is completed, the reliability of abnormality is calculated again for all the terminals D1 to Dz, and the reliability display of the display 13 is updated. This display may be continued for a certain period of time after the abnormality probability display switch 18 is pressed, or, for example, by pressing the abnormality probability display switch 18 again, the confidence factor display may be stopped. good. in this way,
Since it is possible to manually display and output the reliability of the abnormality at any desired time, it is possible to make a comprehensive determination of the entire system, such as maintenance of the entire system, based on this display output.

In the above-described embodiment, as shown in FIG. 2, a three-digit number is displayed on the first display 11 and the second display 12, and a two-digit numerical value is displayed on the abnormality probability display 13. It is supposed to be displayed, but the number of digits is not limited to this,
It can be arbitrary according to circumstances. further,
In addition to these numerical values, it is possible to graphically display the certainty factor of the abnormality by performing a graphic display on a liquid crystal display, a plasma display, a CRT or the like. FIG. 3 is a diagram showing an example thereof. In FIG. 3, the frequency distribution for each smoke density of the smoke analog sensor is displayed. The display of FIG. 3 indicates that the higher the smoke concentration is, the higher the certainty factor of the fire is, and thus the higher the certainty factor of the fire is, the more intuitive the certainty factor of abnormality is. Can be understood. In the example of FIG. 3, the frequency distribution for each 1% / m is displayed, but the same effect can be obtained even if the density is changed. Furthermore, since the frequency of the minimum smoke density (0 to 1% / m in this example) includes those that have not detected a fire phenomenon at all, expect clarity of the display by omitting it from the display. You can Similar graphs can be displayed for thermal analog sensors. Alternatively, both the smoke analog sensor and the thermal analog sensor can be displayed simultaneously. Also, for ON / OFF type fire detectors, transmitters, and fire confirmation inputs, "2" or "90" is counted as an appropriate level according to the weight, for example, 15% / m or 22% / m. . FIG. 4 shows an example in which the frequency distribution of smoke density is displayed on one axis and the frequency distribution of temperature is displayed on the other axis. As shown in FIG. 4, graphic display for each type is performed simultaneously. so,
The degree of certainty of abnormality can be grasped more intuitively.

Further, in the above embodiment, the abnormality determination (predictive fire / fire determination) is made based on the data and information from the terminals D1 to Dz connected to the transmission line L. When a transmitter or a fire confirmation input device is directly connected to 1 through a relay device, the abnormality determination unit 7 determines whether or not an abnormality has occurred by further considering the artificial input information from these. Further, the abnormality probability indexing section 8 can determine the reliability of the abnormality.

Further, in the above-mentioned embodiment, the abnormality probability indexing unit 8 is adapted to perform the counting for indexing the reliability of the abnormality when it is activated by the abnormality determining unit 7 or the switch 18. , When the reliability of the abnormality is calculated based on the data and information from all the terminals, the reliability of the abnormality can always be counted. Therefore, in this case,
The abnormality probability indexing unit 8 may immediately output the counting result at that time as the certainty factor of the abnormality at the time of activation. Furthermore, in the above-described embodiment, the case of monitoring the occurrence of fire has been described as an example, but the present invention can also be applied to the case of monitoring an abnormal state other than fire.

[0034]

As described above, according to the first aspect of the invention, it is determined whether or not an abnormality has occurred based on the data and information from a certain terminal device according to a predetermined abnormality determination standard. At the same time, based on data and information from a plurality of terminals, the degree of certainty of abnormality indicating an index of how reliable the above-mentioned judgment result is, is determined. According to the invention, when it is determined that an abnormality has occurred, the output related to the abnormality occurrence is output, and the output related to the certainty factor of the abnormality is output separately from the output. In addition, it is possible to quickly understand that an abnormality such as a fire has been judged based on the output related to the abnormality occurrence, and whether or not the judgment result of this abnormality is reliable is related to the degree of certainty of the abnormality. It can be extremely easily and immediately grasp the that output.

According to the fifth and sixth aspects of the present invention, the environment monitoring apparatus according to the first aspect further includes:
An operating means is provided for giving an instruction for outputting the certainty factor of the abnormality, and when the instruction for outputting the certainty factor of the abnormality is input from the operating means, it is determined whether or not the abnormality has occurred. Irrespective of the above, since the output relating to the certainty factor of the abnormality indexed by the abnormality certainty factor indexing means is performed, the certainty factor of the abnormality can be manually displayed and output at any desired time. Based on this, comprehensive judgment of the entire system, such as maintenance of the entire system, can also be made.

According to the invention described in claim 7, in the environment monitoring device according to claim 1, when the plurality of terminals include analog sensors, the analog data from the analog sensors are: This is compared with the accuracy determination standard set lower than the abnormality determination standard, and the number of analog sensors that output analog data of a size exceeding the accuracy determination standard is added to the reliability of the abnormality. Although it has not reached the detection level of anomaly occurrence (fire occurrence), it is possible to figure out how many sensors have detected some anomaly and to determine the reliability of anomaly occurrence (fire occurrence) based on this number. Can be evaluated.

Further, according to the invention described in claim 8, in the environment monitoring device according to claim 1, when a plurality of terminals include a terminal to which an artificial input is made, When there is an input of, the weighted value of this input is added to the probability of abnormality, so
The reliability of the abnormality can be made more reliable by calculating the reliability of the abnormality in consideration of information from a transmitter or a fire confirmation input device that is artificially input.

According to the invention described in claim 9, in the environment monitoring device according to claim 2 or 5, the certainty factor of the abnormality is displayed and output as a numerical value.
In particular, in the invention according to claim 10, since the reliability of the abnormality is graphically displayed and output by the frequency distribution of the detection levels of the terminals, the operator grasps the reliability of the abnormality more intuitively and more easily. be able to.

[Brief description of drawings]

FIG. 1 is a configuration diagram of an embodiment of an environment monitoring device according to the present invention.

FIG. 2 is a diagram showing a specific configuration example of an output / operation unit.

FIG. 3 is a diagram showing a display example of a frequency distribution of smoke density of a smoke analog sensor.

FIG. 4 is a diagram showing a display example of smoke concentration and temperature frequency distributions of a smoke analog sensor and a heat analog sensor.

FIG. 5 is a general configuration diagram of a conventional fire alarm device.

[Explanation of Codes] 1 Central device 2 Central processing unit 3 Storage unit 4 Transmission unit 5 Output / operation unit 7 Abnormality judgment unit 8 Abnormality accuracy indexing unit 11 1st display 12 2nd display 13 Abnormality accuracy display 18 Abnormality Accuracy display switch D1-Dz Terminal

 ─────────────────────────────────────────────────── ─── Continuation of front page (72) Inventor Tadashi Ito 1-11-6 Hatagaya, Shibuya-ku, Tokyo Nittan Co., Ltd. (72) Hideto Amamiya 1-1-11 Hatagaya, Shibuya-ku, Tokyo Nitto Tan Co., Ltd.

Claims (10)

[Claims] 1. Based on data and information from a terminal,
In an environment monitoring device for monitoring whether or not the environment is abnormal, an abnormality determining means for determining whether or not an abnormality has occurred according to a predetermined abnormality determination standard based on data and information from a certain terminal device, An abnormality probability indexing unit for indexing an error certainty factor indicating an index of how reliable the determination result of the abnormality determination unit is based on data and information from a plurality of terminals. Environmental monitoring device characterized by. 2. The environment monitoring device according to claim 1,
When it is determined by the abnormality determining means that an abnormality has occurred, an output regarding the occurrence of the abnormality is made,
An environment monitoring device characterized in that, apart from the output, an output relating to the certainty factor of the abnormality indexed by the abnormality probability indexing means is provided. 3. The environment monitoring device according to claim 1 or 2, wherein the plurality of terminals to be used for indexing an abnormality certainty factor are within a group specified by the terminal determined to have an abnormality. Environmental monitoring device characterized by belonging to. 4. The environment monitoring device according to claim 1 or 2, wherein the plurality of terminals that are targets for calculating the confidence factor of abnormality are all the terminals of the environment monitoring device. Environmental monitoring device. 5. The environment monitoring device according to claim 1,
Further, an operating means for giving an instruction for outputting the certainty factor of abnormality is provided, and when an instruction for outputting the certainty factor of abnormality is inputted from the operating means, is it determined that the abnormality has occurred? Regardless of whether or not the abnormality certainty factor calculating means outputs an output regarding the certainty factor of the abnormality. 6. The environment monitoring device according to claim 1 or 5, wherein the plurality of terminals to be used for indexing the confidence factor of abnormality are all the terminals of the environment monitoring device. Environmental monitoring device. 7. The environment monitoring device according to claim 1,
When the plurality of terminals include an analog sensor, the abnormality probability indexing means, with respect to the analog data from the analog sensor, sets the accuracy determination criterion lower than the abnormality determination criterion. An environment monitoring device characterized in that the number of analog sensors that have compared and output analog data of a size exceeding the accuracy determination standard is added to the certainty factor of abnormality. 8. The environment monitoring device according to claim 1,
When the plurality of terminal devices include a terminal device to which an artificial input is made, the abnormality probability indexing means abnormally weights the input when there is an input from the terminal device. Environmental monitoring device characterized by being added to the certainty factor. 9. The environment monitoring device according to claim 2 or 5, wherein the certainty factor of the abnormality is displayed and output as a numerical value. 10. The environment monitoring device according to claim 2 or 5, wherein the certainty factor of the abnormality is graphically displayed and output according to a frequency distribution of detection levels of the terminals. .