JPH08123540A - Equipment monitoring system - Google Patents

Abstract

PURPOSE: To provide an equipment monitoring system by which the load of communication control equipment for reception from a counter monitoring device and the load for transmission to a counter display device can be reduced, system load is reduced as well, a chattering state can be confirmed on a display device and the effective burglar monitor of a building is enabled with respect to the equipment monitoring system to be used as a building managing system for the building or the like. CONSTITUTION: This system is provided with plural state monitor sensors 1 connected with monitoring equipment 2 to monitor/control the temperature or humidity inside the building so as to detect the temperature or humidity, one monitoring device 3 for monitoring the outputs of these state monitor sensors 1, communication control equipment 10 for recognizing the states of respective monitoring equipment and outputting a message and one display device 20 at least for receiving and displaying the message from the communication control equipment 10 and the communication control equipment 10 is constituted so as not to monitor the state of any specified monitoring equipment 2 corresponding to the states of the respective monitoring equipment 2.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a device monitoring system used as a building management system for buildings and the like.

[0002]

2. Description of the Related Art FIG. 11 is a conceptual diagram of the configuration of a conventional system. In the figure, 1 is various state monitoring sensors for measuring temperature, humidity, pressure and the like. 2 is these state monitoring sensors 1
Is a monitoring device such as an air conditioner installed in. An arbitrary number of state monitoring sensors 1 are connected to these monitoring devices 2 and are controlled so that the temperature, humidity, pressure, etc. in the building become constant. A monitoring device 3 receives the outputs of these status monitoring sensors 1 and detects a change in the status of the monitoring equipment 2. The monitoring device 3 monitors the output of the state monitoring sensor 1 at predetermined constant intervals.

A communication control device 4 receives the output of the state monitoring sensor 1 sent from the monitoring device 3 and judges whether the output is normal or not. Reference numeral 5 denotes a display device that displays change information (state change information) of the state of the monitoring device 2 sent from the communication control device 4. The display device 5 may be installed at a plurality of places in the building. In the system configured as described above, the state of the monitoring device 2 is monitored by the monitoring device 3 at regular intervals, and when a change in the state is detected, the state is notified to the display device 5 via the communication control device 4. Then, the state of the monitoring device 2 is displayed on the display device 5.

[0004]

A specific monitoring device 2 is caused by, for example, occurrence / recovery of a full-water alarm triggered by an earthquake, failure of the monitoring device, or defective line connection contact for collecting the status of the monitoring device. The state change of may be continuous (chattering). The chattering causes the following problems.

Chattering of a specific monitoring device 2 increases the amount of state change information per unit time, delays notification of state change information of other devices, and delays operation of other monitoring devices. In some cases, the system may be down due to the exhaustion of resources such as the buffer in the computer.

Since it is invisible to the user, it is difficult to recognize chattering of the device. The present invention has been made in view of such problems, and firstly, while reducing the reception load of the monitoring device of the communication control device and the transmission load to the display device, the system load is also reduced. Second, it is an object of the present invention to provide a device monitoring system capable of confirming the chattering state on a display device and thirdly enabling effective crime prevention monitoring of a building.

[0007]

FIG. 1 is a block diagram showing the principle of the present invention. The same components as those in FIG. 11 are denoted by the same reference numerals. In the figure, 2 is a monitoring device for monitoring and controlling the state of temperature, humidity, etc. in a building, 1 is a plurality of state monitoring sensors for detecting the temperature, humidity, etc. connected to the control device 2,
Reference numeral 3 denotes at least one monitoring device that monitors the output of these status monitoring sensors 1, 10 denotes a communication control device that receives the output of the monitoring device 3, recognizes the status of each monitoring device 2 and outputs a message, 20 Is at least one display device that receives and displays a message from the communication control device 10.

The display device 20 comprises a printer 21 for printing the status of the monitoring device 2, a CRT 22 for displaying the status of the monitoring device 2, and a voice device 23 for notifying the status of the monitoring device 2 by voice. At least one monitoring device 3 is required, and at least one display device 20 is also provided.
I need only one.

In this case, the communication control device 10
Has a counter for counting the number of state changes per unit time for each monitoring device 2 and a reference value for the number of state changes,
It is convenient to detect chattering for each monitoring device in order to easily determine the degree of the number of state changes.

It is preferable that the reference value of the number of state changes is set in the communication control device 10 from the display device 20 via the communication line in order to easily set the reference value. Also,
The communication control device 10 notifies the display device 20 of the chattering detection, and the display device 20 outputs an alarm sound and an abnormal message, and abnormally displays the symbol display of the target monitoring device 2, This is preferable for easily grasping the state of the monitoring device 2.

Further, the communication control device 10 is provided with device deletion information (deletion flag) for not issuing the state change notification for each monitoring device 2 even if the communication control device 10 changes its state. When the number of state changes per unit time of a certain monitoring device 2 becomes larger than the reference value, the deletion flag is turned on, the monitoring device 3 that manages the monitoring device is notified of this, and thereafter the monitoring device 2 It is preferable not to accept the state change in order to reduce the load on the communication control device 10.

Further, the communication control device 10 is provided with a recovery monitoring function of the monitoring device 2 which has stopped monitoring due to the deletion flag being turned on, in each communication device 2.
0 notifies the monitoring device 3 of the notification that the state change of the corresponding monitoring device 2 is accepted in a certain cycle, and the monitoring device 3
Upon receiving this notification, the state of the monitoring device 2 is notified to the communication control device 10, and the communication control device 10 determines that the number of state changes during the chattering monitoring cycle period of the corresponding monitoring device 2 is below the reference value. For example, returning the deletion flag to OFF and displaying the current monitoring device status on the display device is preferable in order to restore the monitoring device 2.

Further, the communication control device 10 is provided with a function as a room entry / exit management system when the monitoring device 2 is a crime prevention sensor device, and the status change is not notified even if the status changes. The point registration / deletion information for the security sensor device is provided, and the operation of the security sensor device is linked with the use of the room. When the room is in use, the point registration / deletion information is deleted to delete the point of the security sensor device. In order to reduce the load on the communication control device 10, it is preferable to receive the status of the crime prevention sensor device when the room is not in use, without receiving the status.

Further, the communication control device 10 is provided with a function of whether or not the output information of the security sensor device is received at a previously designated time, and the state change notification is given even if the state change occurs. If the output information of the security sensor device is not received at the specified time by providing the point registration / deletion information for the absence, the point registration / deletion information is deleted and the status of the security sensor device is not received. When the output information of the security sensor device is received at the designated time, the point registration / deletion information is used as the point registration to receive the state of the security sensor device to reduce the load on the communication control device 10. It is preferable above.

Further, when the monitoring device 3 is an analog monitoring device for monitoring the upper limit value / lower limit value of the analog value, the communication control device 10 causes the communication control device 10 to detect the upper limit value / lower limit value from the monitoring device 3.
When the lower limit alarm is counted and compared with the reference value, and if an alarm equal to or higher than the reference value is generated, the state change from the monitoring device is not accepted thereafter in order to reduce the load on the communication control device 10. preferable.

[0016]

In response to the status information from the monitoring device 2 output from the monitoring device 3, the communication control device 10 does not monitor the status of a specific monitoring device 2 according to the status of each monitoring device 2. I chose As a result, the amount of state change information per unit time does not increase due to chattering of the specific monitoring device 2, and the load on the communication control device 10 is reduced.

In this case, the communication control device 10
Has a counter for counting the number of state changes per unit time for each monitoring device 2 and a reference value for the number of state changes,
By detecting chattering for each monitoring device,
The degree of the number of state changes can be easily determined.

The reference value of the number of state changes can be easily set by setting it in the communication control device 10 from the display device 20 via the communication line. Further, the communication control device 10 notifies the display device 20 of the chattering detection, and the display device 20 outputs an alarm sound and an abnormal message and abnormally displays the symbol display of the target monitoring device 2. Thus, the chattering state can be confirmed on the display device, and the state of the monitoring device 2 can be easily grasped.

Further, the communication control device 10 is provided with, for each monitoring device 2, device deletion information (deletion flag) for not issuing a status change notification even when the communication control device 10 changes its state. When the number of state changes per unit time of a certain monitoring device 2 becomes larger than the reference value, the deletion flag is turned on and the monitoring device 3 that manages the monitoring device is notified to that effect. By not accepting the state change, the load on the communication control device 10 can be reduced.

In addition, the communication control device 10 is provided with a recovery monitoring function of the monitoring device 2 that has stopped monitoring due to the deletion flag being turned on, in each communication device 2.
0 notifies the monitoring device 3 of the notification that the state change of the corresponding monitoring device 2 is accepted in a certain cycle, and the monitoring device 3
Upon receiving this notification, the state of the monitoring device 2 is notified to the communication control device 10, and the communication control device 10 determines that the number of state changes during the chattering monitoring cycle period of the corresponding monitoring device 2 is below the reference value. For example, by returning the deletion flag to OFF and displaying the current monitoring device status on the display device, the monitoring device 2 can be restored.

Further, the communication control device 10 is provided with a function as an entrance / exit management system when the monitoring device 2 is a crime prevention sensor device, and the status change is not notified even if the status changes. The point registration / deletion information for the security sensor device is provided, and the operation of the security sensor device is linked with the use of the room. When the room is in use, the point registration / deletion information is deleted to delete the point of the security sensor device. By receiving the status of the security sensor device when the room is not in use and not receiving the status, it is possible to enable effective security monitoring of the building and reduce the load on the communication control device 10. .

Further, the communication control device 10 is provided with a function of whether or not the output information of the security sensor device is received at a predetermined time, and the status change is notified even if the status is changed. If the output information of the security sensor device is not received at the specified time by providing the point registration / deletion information for the absence, the point registration / deletion information is deleted and the status of the security sensor device is not received. When receiving the output information of the security sensor device at the specified time, the point registration / deletion information is registered as a point and the status of the security sensor device is received to enable effective security monitoring of the building. You can
The load on the communication control device 10 can be reduced.

Further, when the monitoring device 3 is an analog monitoring device for monitoring the upper limit value / lower limit value of the analog value, the communication control device 10 causes the communication control device 10 to detect the upper limit / lower limit value from the monitoring device 3.
When the lower limit alarm is counted and compared with a reference value and an alarm equal to or higher than the reference value is generated, the load on the communication control device 10 can be reduced by not accepting the state change from the monitoring device thereafter. it can.

[0024]

Embodiments of the present invention will be described below in detail with reference to the drawings. (1) State Change Amount Checking Method FIG. 2 is a block diagram showing a detailed configuration example in the communication control device 10. The same parts as those in FIG. 1 are designated by the same reference numerals. In the communication control device 10, reference numeral 11 denotes a transmission / reception processing unit that notifies the display device 20 of a state change or a device deletion notification.
Reference numeral 2 denotes a transmission / reception processing unit that receives a state change occurrence notification from the monitoring device 3 and requests deletion / registration for each point (monitoring device) where the state monitoring sensor 1 is installed in the monitoring device 3.

Reference numeral 13 is a chattering detection processing unit that receives the state change (state change) information from the transmission / reception processing unit 12 and detects chattering in a fixed cycle, and 14 receives the state change information from the transmission / reception processing unit 12 and changes the state. A state change processing unit 15 for performing the above is a state change number count table for counting the number of state changes. The chattering detection processing unit 13 notifies the transmission / reception processing unit 11 of the processing result, and sends the counter clear signal and the counter reference signal to the state change number count table 1
Give 5 The state change processing unit 14 notifies the transmission / reception processing unit 11 of the processing result. Reference numeral 31 is an in-monitoring device point table that stores information on monitoring points provided in the monitoring device 3.

FIG. 3 is a diagram showing a detailed configuration example of the state change number count table 15. As shown in the figure, for each monitoring device (1 to n), a deletion flag 15a, a current state 15b,
It is composed of a reference value 15c and a count value 15d. When the deletion flag 15a is turned on, the state information of the monitoring device 2 is not accepted, the current state 15b stores the current state of the monitoring device 2, and the reference value 15c is The count value 15d is a reference value that serves as a reference for comparing the number of chattering times, and the count value 15d indicates a cumulative count value of chattering for each monitoring device 2 by the counter.

FIG. 4 shows the point table 3 in the monitoring device 3.
It is a figure which shows the structural example of 1. As shown in the figure, the deletion flag 31a and the current state 31b are set for each monitoring device (1 to n).
It is composed of The deletion flag 31a is for not accepting the status change information of the monitoring device 2 when it is on, and the current state 31b is for storing the current state of the monitoring device 2. The operation of the system configured as described above will be described below.

First, a reference value for chattering is set for each monitoring device from the display device 20 to the communication control device 10 via a communication line (eg LAN). The chattering reference value that has been set is the state change number count table 15
15c is stored for each monitoring device. in this way,
By setting the communication control device 10 from the display device 20 via the communication line, the reference value can be easily set. The period T1 in which the chattering detection processing unit 13 refers to the state change number count table 15 is also set and stored in the communication control device 10 from the display device 20 via the communication line. Furthermore, the state change count table 1
The deletion flag 15a of No. 5 has its initial value set to OFF, and all the count values 15d have been set to 0. The transmission / reception processing unit 12 also sets the deletion flag 31a of the monitoring device point table 31 in the monitoring device 3 to OFF as an initial value.

Upon completion of such initialization, the device monitoring system starts operating. In the operating state, the output of the state monitoring sensor 1 installed in each monitoring device 2 is notified to the communication control device 10 via the monitoring device 3. In the communication control device 10, via the transmission / reception processing unit 12, the state change processing unit 14 and the chattering detection processing unit 13 are notified of the state information of each monitoring device 2. The state change processing unit 14 includes the monitoring device 2
When it is detected that the state has changed, the transmission / reception processing unit 11
A status change notification is sent to the display device 20 via. In the display device 20, this state change is printed on the printer 21, displayed on the CRT 22, or output as voice by the voice device 23 (see FIG. 1).

On the other hand, when the chattering detection processing unit 13 detects chattering from the input state information of each monitoring device 2, the chattering detection processing unit 13 notifies the state change number count table 15 of a count-up notification. As a result, the count value in the state change count table 15 is updated by 1. This process is sequentially repeated.

On the other hand, the communication control device 10 sets the count value 15d for each monitoring device 2 stored in the state change count table 15 at the predetermined cycle T1 to the chattering reference value of the monitoring device 2. The process of comparing with 15c is repeated. In this comparison process, when the count value> the reference value, the corresponding deletion flag 15a is turned from the previous OFF state to the ON state. For example, a case where the monitoring cycle T1 is 1 minute and the chattering reference value 15c is 10 and the state change occurs 20 times per minute can be given as an example.

Further, in this case, a point deletion request is issued to the monitoring device 3 via the transmission / reception processing unit 12. As a result, the deletion flag 31a of the corresponding monitoring device in the in-monitoring device point table 31 is turned from the previous off state to the on state. Further, the transmission / reception processing unit 11 issues a device deletion notification to the display device 20. As a result of the above, the display device 20 displays (outputs) the number of the monitoring device 2 that has not accepted the state change thereafter. Further, even if the monitoring device 3 receives the sensor output of the monitoring device 2 with the deletion flag 31a turned on, the monitoring device 3 does not notify the communication control device 10 of the information, and the monitoring device 3 discards the information data and performs communication control. Device 10
Also does not accept the status change information of the corresponding monitoring device 2. As a result, even if the monitoring device 3 receives the status change information,
The status change information data is discarded. As a result, the amount of data processed by the communication control device 10 is reduced, and the burden is reduced.

The case where the state change information from the monitoring device is not accepted when the state change count value during the constant period T1 becomes larger than the reference value has been described above. The communication control device 10 may be provided with a recovery monitoring function for restarting the monitoring again when is smaller than the reference value. In this case, it is necessary to provide a recovery monitoring flag in the communication control device 10. This recovery monitoring flag is provided for each monitoring device 2. This recovery monitoring flag is turned off in the initial state. When the deletion flag is turned on, if the monitoring device that has stopped accepting the status change information is desired to be restored, the recovery monitoring flag of the monitoring device 2 is turned on by, for example, setting from the display device 20. For the monitoring device 2 whose recovery monitoring flag is turned on, the status change information from the monitoring device 2 is accepted, and when the count value in the cycle T1 becomes smaller than the reference value, the deletion flag 15a is turned on. It turns it off. Then, the deletion flag 31a in the monitoring device point table 31 is also returned from ON to OFF, and the display device 20 is notified of the current state. As a result, the monitoring device 2 is incorporated into the monitoring loop again and is monitored.

FIG. 5 is a flow chart showing the operation of the system for checking the state change amount. This flowchart is composed of chattering detection processing and restoration processing. First, the first monitoring device is set (S1). Then, the reference value of the first monitoring device and the count value are compared (S2). The reference value and the count value of the monitoring device are stored in the state change number count table 15 in the communication control device 10 as described above. When the count value becomes larger than the reference value, it is necessary not to accept the status change information from the monitoring device. Therefore, the chattering detection processing unit 13 turns on the deletion flag 15a of the corresponding monitoring device (S3), issues a point deletion request to the monitoring device 3, and notifies the display device 20 of the deletion information (S4). Then, the process goes to step S8.

If the count value is smaller than the reference value in step S2, the status change information from the monitoring device can be accepted. Therefore, the communication control device 10 checks whether or not the recovery flag is on (S5). If the recovery flag was on, it means that the deletion flag of that monitoring device was on and was not monitoring until then. However, since the count value is smaller than the reference value, it is necessary to restore it.
Therefore, first, turn off the deletion flag of the corresponding monitoring device,
The display device 20 is notified that the deletion flag is turned off, and the current state is set to the current state 1 of the state change count table 15.
Write to 5b (S6).

In step S6, since the monitoring device that has not received the status change information up to that point is restored, the chattering detection processing unit 13 turns off the recovery monitoring flag (S
7) Then, the counter of the state change number count table 15 is cleared (S8). As a result, the count value 15d is 0
become. Next, the communication control device 10 checks whether or not the check has been completed for all monitoring devices (S
9). If the check has not been completed for all monitoring devices, the next monitoring device is designated (S10), the process returns to step S2, and the same check is repeated.

When the check is completed for all the monitoring devices and the number of operations is 1, the communication control device updates the number of operations by 1 when the checks for all the monitoring devices are completed (S11). The restoration process starts below. Next, the communication control device 10 compares the predetermined number of times of recovery monitoring with the number of operations (S12). For example, the number of times of recovery monitoring is predetermined such as 10. Then, the operation in which all the chattering detection processing described above ends is 10
If it is more than once, the following recovery process will be started.

When the number of operations exceeds the number of restoration monitoring, the restoration process is started. First, the initial device is set (S13). When the number of operations is smaller than the number of recovery monitoring, the process skips to step S19, and the chattering detection process starts next. Next, the communication control device 10 checks whether or not the deletion flag 15a corresponding to the monitoring device is turned on (S14), and if it is on, issues a point deletion cancellation notification to the monitoring device 3 and sets the recovery monitoring flag. Turn on (S15). As a result, it becomes possible to receive the status change information from the monitoring device whose deletion flag has been turned on. Next, it is checked whether or not the checking of all monitoring devices is completed (S16). If all the monitoring devices have not been checked, the next monitoring device is designated (S17), and the processes from step S14 are repeated. When all the devices have been checked, the number of operations is initialized to 0 (S18), and the process waits (S19). After this, after a lapse of a predetermined time, the processing from step S1 is repeated.

(2) Crime Prevention Monitoring System FIG. 6 is a block diagram showing the configuration of an embodiment of the present invention.
The same parts as those in FIG. 1 are designated by the same reference numerals. In this embodiment, an entrance / exit monitoring system is incorporated into the system shown in FIG. In the figure, reference numeral 40 denotes a room entrance / exit monitoring system, which notifies the communication control device 10 of the use start time and the use end time of the room. A communication line connecting the communication control device 10 and each display device 20 is a LAN.
It is composed of Other configurations are the same as those in FIG. Here, the monitoring device 2 is a security sensor device.

FIG. 7 is a block diagram showing a detailed configuration example of the communication control device 10 at this time. The same parts as those in FIG. 2 are designated by the same reference numerals. In the figure, 14 is a state change processing unit that receives and processes the state change information sent from the transmission / reception processing unit 12, and the result is notified to the transmission / reception processing unit 11. Reference numeral 16 denotes an interlocking processing unit that receives the processing result from the state change processing unit 14 and determines whether or not to interlock each crime prevention sensor point, and the result is notified to the transmission / reception processing units 11 and 12. Reference numeral 17 denotes an interlocking table that stores interlocking conditions for each security sensor device 2, and is connected to the interlocking processing unit 16. 1
Reference numeral 8 is a state table that stores an interlocking flag for each security sensor device 2, and is connected to the state change processing unit 14. Reference numeral 35 denotes a monitoring device point table which is provided in the monitoring device 3 and stores registration and deletion information for each security sensor installation point.

FIG. 8 is a diagram showing an example of the structure of the state table 18. As shown in the figure, a current state 18a and an interlocking flag 18b are provided for each device address (a point where the key ON / OFF information of a room key is received). Current status 18
“A” stores a state such as ON / OFF of the key. The interlocking flag 18b is a flag that determines whether or not to refer to the interlocking table 17 in a certain state (for example, a state that the room is in use).

FIG. 9 is a diagram showing an example of the structure of the interlocking flag 18b. For example, as shown in the drawing, it is composed of 2 bits of D0 and D1. In the case of the 2-bit flag shown in the figure, for example, D0 is linked from off to on, and D1 is linked from on to off. The setting of each bit needs to be set in advance from the display device 20. That is, when "1" is set in the D0 bit, the contents of the interlocking table 17 are visited, and when "0" is set, the interlocking table 17 is not visited. On the other hand, when "0" is set in the D1 bit, go to the contents of the interlocking table 17,
When "1" is set, the contents of the interlocking table 17 are not visited.

FIG. 10 is a diagram showing an example of the structure of the interlocking table 17. For each security sensor device (corresponding to the device address in FIG. 8), the interlocking condition 17a, the interlocking device (security sensor) that operates under this condition, and the control contents thereof are stored. As the interlocking condition 17a, for example, when "1" is standing, the key is turned off → on, and when "2" is standing, the key is turned on → off, which is interlocked in advance. The control contents are, for example, point registration (when the crime prevention sensor of the corresponding point is activated) when "1" is standing, and point deletion (when the crime prevention sensor of the corresponding point is not activated) when "2" is standing. Make a decision. The operation of the system configured as described above will be described below.

First, the system is initialized. Communication control device 1 from display device 20 via a communication line (LAN)
The interlocking table 17 and the state table 18 are initialized to 0. In the interlocking table 17, the interlocking condition 17a and the control content for each interlocking device are set for each security sensor device. In the status table 18, the security sensor device (device address)
The interlocking flag 18b is set to ON or OFF every time. In addition, the transmission / reception processing unit 12 initializes registration or deletion according to the contents of the interlocking table 17 for each security sensor installation point of the monitoring device point table 35 in the monitoring device 3.

Upon completion of such initialization, the device monitoring system starts operating. Then, the monitoring device 3 notifies the transmission / reception processing unit 12 of the state change information indicating the start / end of use of the room. This state change information is
It is given from the transmission / reception processing unit 12 to the state change processing unit 14. For example, assuming that the information is that the room has started to be used, the state change processing unit 14 refers to the state table 18. When "Room in use" is written in the current state 18a of the state table 18 and the interlock flag 18b is referred to and it is recognized that the key is interlocked from off to on, the state is displayed on the display device 20 via the transmission / reception processing unit 11. The change is notified and the interlock processing unit 16 is instructed to refer to the interlock table 17.

The interlocking processing section 16 refers to the interlocking table 17. When the interlocking condition is "1", the interlocking is performed from off to on, so that interlocking devices (security sensors) are interlocked according to the contents of the table. For example, when the control content is “1”, the transmission / reception processing unit 12 outputs a registration instruction of the point to the monitoring device 3,
When the control content is “2”, the deletion instruction of the point is output to the monitoring device 3. In this way,
The operating state of the security sensor for each security sensor device is sent from the monitoring device 3 to the transmission / reception processing unit 12, and the display device 2
Will be displayed at 0. That is, only the crime prevention sensor requested to be registered by the interlocking processing unit 16 operates.

As a result of such a series of operations, for example, the security sensor is not operated while the room is in use, and the security sensor is operated after the room has been used and the room key has been locked. Control will be performed. This eliminates the inconvenience of outputting an alarm each time a person passes a certain place while using the room, and conversely, when there is no person at midnight etc., a person enters the room with a certain purpose. In such a case, the crime prevention sensor operates and outputs an alarm.

In the above-mentioned embodiment, the case where the room is operated in association with whether the room is opened or closed by the key is taken as an example. However, the present invention is not limited to this, and the entry / exit management system 40 sets the use start time and the use end time in the communication control device 10 so that the crime prevention sensor does not operate from the use start time to the use end time. It is also possible to operate the security sensor after the use end time and before the use start time. In this case, the state change occurrence notification, which was originally notified from the monitoring device 3, is performed inside the communication control device 10 according to the time. This enables effective security monitoring of the building.

(3) Analog Upper / Lower Limiting Method In the configuration of FIG. 1, when the output of the state monitoring sensor 1 is an analog signal, the monitoring device 3 receiving the output of this state monitoring sensor 1 is the upper limit value / lower limit value of the analog value. It is necessary to use an analog monitoring device for monitoring. Here, when the chattering of the upper limit alarm and the lower limit alarm occurs, the monitoring device 3 continuously transmits the upper limit alarm / lower limit alarm to the communication control device 10. Therefore, the communication control device 10 side is provided with a mechanism for counting the upper limit / lower limit alarms from the monitoring device 3, and compares this count value with a reference value. Do not accept status changes from security sensor devices. Thereby, in the communication control device 10, the load required for the processing is reduced.

[0050]

As described in detail above, according to the present invention, a plurality of states for detecting temperature, humidity, etc. connected to a monitoring device for monitoring and controlling the state of temperature, humidity, etc. in a building. A monitoring sensor, at least one monitoring device that monitors the output of these status monitoring sensors, a communication control device that receives the output of the monitoring device, recognizes the status of each monitoring device, and outputs a message, and the communication At least one display device for receiving and displaying a message from the control device,
The communication control device can reduce the load on the communication control device by not monitoring the state of a specific monitoring device according to the state of each monitoring device.

In this case, the communication control device has a counter for counting the number of state changes per unit time for each monitoring device and a reference value for the number of state changes, and detects chattering for each monitoring device. As a result, the degree of the number of state changes can be easily determined.

The reference value of the number of state changes can be easily set by setting it in the communication control device from the display device via the communication line. Further, the communication control device notifies the display device of the chattering detection, the display device outputs an alarm sound, outputs an abnormal message, and abnormally displays the symbol display of the target monitoring device, thereby displaying the chattering state. Can be confirmed on the display device, and the state of the monitoring device can be easily grasped. Further, even if there is a state change in the communication control device, device deletion information for not issuing a state change notification. A (deletion flag) is provided for each monitoring device, and the communication control device turns on the deletion flag when the number of state changes of a certain monitoring device per unit time exceeds a reference value, and manages the monitoring device. By notifying the fact to the above and not accepting the state change from the monitoring device thereafter, the load of the communication control device can be reduced.

Further, each communication device is provided with a recovery monitoring function of the monitoring device which has stopped monitoring due to the deletion flag being turned on in the communication control device, and the communication control device changes the state of the monitoring device in a certain cycle. When the monitoring device receives the notification, the monitoring device notifies the communication control device of the state of the monitoring device, and the communication control device determines the chattering monitoring cycle period of the monitoring device. If the number of state changes in the state is less than the reference value, the monitoring device can be restored by returning the deletion flag to OFF and displaying the current device state on the display device.

In addition, the communication control device is provided with a function as a room entry / exit management system when the monitoring device is a security sensor device, and the status change notification is not issued even if the status changes. The point registration / deletion information is provided, and the operation of the security sensor device is linked to the use of the room. When the room is in use, the point registration / deletion information is registered to receive the status of the security sensor device. Instead, the load of the communication control device can be reduced by receiving the state of the security sensor device when the room is not in use.

Further, the communication control device is provided with a function of whether or not the output information of the security sensor device is received at a pre-designated time, and the state change notification is not issued even if the state change occurs. When the output information of the security sensor device is not received at the designated time, the point registration / deletion information is set to point deletion and the status of the security sensor device is not received. When the output information of the security sensor device is received at the designated time, the load of the communication control device 10 is reduced by receiving the status of the security sensor device by setting the point registration / deletion information as the point registration. You can

Further, when the monitoring device is an analog monitoring device for monitoring the upper limit value / lower limit value of the analog value,
The communication control device counts the upper / lower limit alarms from this monitoring device, compares them with the reference value, and if an alarm above the reference value is generated, it does not accept the state change from the monitoring device thereafter. The load on the communication control device can be reduced.

As described above, according to the present invention, when an abnormality occurs in a specific monitoring device, the monitoring device is requested to delete the monitoring device, so that the following effects can be obtained.

Since the monitoring device does not notify the communication control device of the status change of the monitoring device in which chattering occurs, the reception load from the monitoring device and the accompanying transmission load to the display device are reduced. At the same time, the system load is reduced.

By notifying the display device of the chattering state, it is possible to visually recognize the abnormal state of the device. By linking the crime prevention sensor, which is a part of the building management equipment, with the entry / exit system, it is possible to enable more effective crime prevention monitoring.

[Brief description of drawings]

FIG. 1 is a principle block diagram of the present invention.

FIG. 2 is a block diagram illustrating a detailed configuration example of a communication control device.

FIG. 3 is a diagram showing a configuration example of a state change count table.

FIG. 4 is a diagram illustrating a configuration example of a point table in a monitoring device.

FIG. 5 is a flowchart showing the operation of the system for checking the state change amount.

FIG. 6 is a configuration block diagram showing an embodiment of the present invention.

FIG. 7 is a block diagram illustrating another detailed configuration example of the communication control device.

FIG. 8 is a diagram showing a configuration example of a state table.

FIG. 9 is a diagram showing a configuration example of an interlocking flag.

FIG. 10 is a diagram showing a configuration example of an interlocking table.

FIG. 11 is a conceptual diagram of a conventional system.

[Explanation of symbols]

 1 Status Monitoring Sensor 2 Monitoring Equipment 3 Monitoring Device 10 Communication Control Device 20 Display Device 21 Printer 22 CRT 23 Audio Device

Claims (9)

[Claims] 1. A plurality of status monitoring sensors for detecting temperature, humidity, etc. connected to a monitoring device for monitoring and controlling the status of temperature, humidity, etc. in a building, and at least one for monitoring the output of these status monitoring sensors. Monitoring devices, a communication control device that receives the output of the monitoring device and recognizes the status of each monitoring device and outputs a message, and at least one display that receives and displays a message from the communication control device. A device monitoring system comprising: a device, wherein the communication control device does not monitor the state of a specific monitoring device according to the state of each monitoring device. 2. A counter for counting the number of state changes per unit time for each monitoring device and a reference value for the number of state changes in the communication control device, and for detecting chattering for each monitoring device. The device monitoring system according to claim 1, which is characterized in that. 3. The device monitoring system according to claim 2, wherein the reference value of the number of state changes is set in the communication control device from the display device via the communication line. 4. The communication control device notifies the display device of chattering detection, and the display device outputs an alarm sound and an abnormal message and abnormally displays the symbol display of the target monitoring device. The device monitoring system according to claim 2, which is characterized in that. 5. A monitoring device in which the communication control device is provided with device deletion information (deletion flag) for not issuing a status change notification even if the communication control device has a status change, If the number of state changes per unit time of is larger than the reference value, turn on the delete flag, notify the monitoring device that manages the monitoring device to that effect, and do not accept the state change from that monitoring device thereafter. The equipment monitoring system according to claim 2. 6. The communication control device is provided with a recovery monitoring function for each monitoring device that has stopped monitoring due to a deletion flag being turned on, and the communication control device changes the status of the monitoring device at a fixed cycle. When the monitoring device receives the notification, the monitoring device notifies the communication control device of the status of the monitoring device, and the communication control device determines the chattering monitoring cycle period of the monitoring device. 6. The device monitoring system according to claim 5, wherein if the number of state changes in the inside is less than the reference value, the deletion flag is turned off and the current monitoring device state is displayed on the display device. 7. The communication control device is provided with a function as a room entrance / exit management system when the monitoring device is a security sensor device, and for notifying a status change even if the status changes. The point registration / deletion information is provided, the operation of the security sensor device is linked to the use of the room, and when the room is in use, the point registration / deletion information is set to the point deletion to determine the state of the security sensor device. The device monitoring system according to claim 1, wherein the device monitoring system receives the status of the security sensor device when the room is not in use and does not receive the security sensor device. 8. The communication control device is provided with a function of whether or not the output information of the security sensor device is received at a predetermined time, and the status change is not notified even if the status is changed. If the output information of the security sensor device is not received at the designated time, the point registration / deletion information is deleted and the status of the security sensor device is not received. If you want to receive the output information of the security sensor device at the specified time,
2. The state of the security sensor device is received by converting the point registration / deletion information into point registration.
The equipment monitoring system described. 9. The monitoring device comprises: an analog value upper limit value /
In the case of an analog monitoring device that monitors the lower limit value, the communication control device counts the upper / lower limit alarms from this monitoring device and compares it with the reference value. The device monitoring system according to claim 5, wherein the change of state from the monitoring device is not accepted thereafter.