JP2023057383A - Management device and warning system - Google Patents

Abstract

To recognize a state of a detector for detecting an abnormality having occurred in a monitoring area before replacement even when the detector is replaced with a new detector.SOLUTION: A master unit 10b comprises: a storage section for storing state information of a slave unit for detecting an abnormality having occurred in a monitoring area in association with an identifier of the slave unit; an update section for updating the state information stored in the storage section in association with the identifier into new state information when a signal including the identifier and the new state information is received; and an update control section for prohibiting the update section from updating the state information stored in the storage section in association with the identifier into the new state information when a situation satisfies a predetermined condition indicating that the slave unit with the occurrence of a unit abnormality has been replaced with a new slave unit 10a-2 where an identifier being the same as that of a former slave unit has been set.SELECTED DRAWING: Figure 5

Description

The present invention relates to technology for managing status information of detectors that detect anomalies occurring in a monitored area.

There is known a technique for inter-group interlocking by transferring a device failure interlocking signal transmitted from a fire detector in the group between groups (for example, Patent Document 1).

JP 2019-008679 A

When a device abnormality occurs in a detector that detects an abnormality that occurs in the monitored area, the worker in charge should normally check the device abnormality in this detector and take measures such as replacing it. A person other than the operator may replace this detector with a new detector. Also, during this replacement, the same identifier as that of the pre-replacement detector may be assigned to the post-replacement detector. The management device manages the state information of each detector. However, since each detector is identified by an identifier, if the same identifier as that of the pre-replacement detector is assigned to the post-replacement detector, these detectors are recognized as the same device. Therefore, when the status is notified from the replaced detector, the management device erroneously recognizes that the replaced detector is the same device as the pre-replacement detector, and collects the status information of the pre-replacement detector. is updated with the status information of the detector after replacement. When such updating is performed, the worker in charge cannot recognize the device abnormality of the detector before replacement.

SUMMARY OF THE INVENTION It is an object of the present invention to enable recognition of the state of a detector before replacement even when a detector that detects an abnormality that has occurred in a monitoring area is replaced with a new detector. .

According to one aspect of the present invention, a storage unit stores state information of the first detector in association with an identifier of the first detector that detects an abnormality that has occurred in a monitoring area, and the identifier and new state information are stored. an updating unit that updates the state information stored in the storage unit in association with the identifier to the new state information when the signal including the identifier is received; When a predetermined condition indicating that the detector has been replaced with a new second detector having the same identifier as the detector is satisfied, the updating unit associates the identifier with the identifier and stores the and an update control unit that prohibits updating of state information to the new state information.

According to the present invention, even when a detector that detects an abnormality that has occurred in a monitoring area is replaced with a new detector, it is possible to recognize the state of the detector before replacement.

It is a figure showing an example of composition of an alarm system concerning an embodiment. It is a figure which shows an example of a structure of an alarm device. It is a figure which shows an example of a structure of a report transfer apparatus. FIG. 11 is a sequence chart showing an example of operations when a device abnormality occurs in a child device; FIG. FIG. 11 is a sequence chart showing an example of operations when a device abnormality occurs in a child device; FIG.

1. Configuration FIG. 1 is a diagram showing an example of the configuration of an alarm system 1 according to this embodiment. The alarm system 1 is a system that alarms the occurrence of a fire in conjunction within a group. The alarm system 1 includes a plurality of alarm devices 10 functioning as child devices (hereinafter referred to as “child device 10a”), an alarm device 10 functioning as a master device (hereinafter referred to as “master device 10b”), and a mobile device. and an information device 20 . In the following description, the child device 10a and the parent device 10b are also collectively referred to as the alarm device 10. FIG. The child device 10a, the parent device 10b, and the information transfer device 20 belong to the same group and are wirelessly connected. The alarm transfer device 20 is connected via a signal line 40 to an external device 30 not included in the alarm system 1 . Note that the number of child devices 10a shown in FIG. 1 is an example, and the number is not limited to this.

The alarm device 10 is installed on the ceiling or wall of a building to be managed such as a residence, a commercial building, an office building, etc., and detects a fire and issues an alarm. A building to be managed is an example of a monitored area according to the present invention. The alarm 10 may be any device that detects a fire and gives an alarm, such as a residential fire alarm, a fire sensor, or the like. A fire is an example of an anomaly according to the present invention. Alarm device 10 is an example of a detector according to the present invention. The parent device 10 b is installed at a position where it can communicate wirelessly with the plurality of child devices 10 a and the alarm transfer device 20 , and transfers the signal received from the child device 10 a to the alarm transfer device 20 . Also, the master device 10b manages the status information of the alarm devices 10 in the group. Master device 10b is an example of a management device according to the present invention.

When the alarm device 20 receives a signal indicating that the alarm 10 has detected a fire, the alarm transfer device 20 transfers the alarm to the external device 30 . In addition, the alarm transfer device 20 transfers the alarm output to the external device 30 when receiving a signal indicating detection of an abnormality other than a fire, such as a failure of the alarm device 10 itself. This alarm transfer output means to transmit an alarm. In this embodiment, the alarm transfer device 20 itself does not detect fire.

The external device 30 is a control device that is managed and operated in, for example, a janitor's room, and monitors the building to be managed. When the report transfer output is performed from the report transfer device 20, the external device 30 performs processing according to this report transfer output. This process is, for example, a process of transmitting a signal to the control center of the management company that manages the building according to the report output from the report transfer device 20 . The external device 30 may be operated by being connected to an alarm device such as an additional buzzer or flashlight, a smoke prevention device such as a shutter or a fire door, or a housing information panel of an intercom system. The processing corresponding to the output of the report transfer is not limited to the processing of transmitting a signal, and may be any processing.

FIG. 2 is a diagram showing an example of the configuration of the alarm device 10. As shown in FIG. Alarm device 10 includes control unit 101 , storage unit 102 , communication unit 103 , operation unit 104 , display unit 105 , sound output unit 106 , fire detection unit 107 , and power supply unit 108 . Each part of the alarm device 10 is connected via a bus or a power line.

The control unit 101 controls each unit of its own device and performs various types of processing. The control unit 101 includes one or more processors such as a CPU, and the processors execute programs stored in the storage unit 102 . The storage unit 102 includes nonvolatile memory such as EEPROM and volatile memory such as RAM. The nonvolatile memory stores a program for realizing the functions of the device itself, the address of the device itself, and the group ID. This address is a number that uniquely identifies the alarm device 10 within the group. A plurality of alarm devices 10 belonging to the same group are preset with consecutively numbered addresses. An address is an example of an identifier according to the present invention. The group ID is information that uniquely identifies the group to which the alarm device 10 belongs. A group ID is used to receive various signals generated within the group. The volatile memory stores the state information of the device itself. The state information is information indicating the state of the device itself, and indicates either a normal state or an abnormal device state. Further, the address of each alarm device 10 in the group and the status information of the alarm device 10 are stored in association with each other in the volatile memory of the master device 10b. The communication unit 103 is a communication interface for performing wireless communication with other devices according to wireless communication standards. The communication unit 103 includes, for example, an antenna and a transmission/reception circuit.

The operation unit 104 receives an operator's operation. The operation unit 104 includes various buttons such as a test button. The test button accepts an operation instructing execution of a test for confirming the operation. The display unit 105 displays various information. The display unit 105 includes a plurality of LEDs with different emission colors, and indicates various information by the lighting pattern of each LED. The sound output unit 106 outputs various alarm sounds and voice messages. Sound output unit 106 includes, for example, a speaker. The fire detection unit 107 detects fire by measuring physical quantities that change with fire. A fire detection method is, for example, a photoelectric method or a constant temperature method. In the case of the photoelectric type, the fire detection unit 107 measures and outputs the surrounding smoke concentration. In the constant temperature type, the fire detection unit 107 measures and outputs the ambient temperature. The fire detection method is not limited to the photoelectric method or constant temperature method, and may be an infrared method, a composite method, or any other method as long as it can detect a fire. The power supply unit 108 supplies electric power to each unit of the device itself. The power supply unit 108 includes, for example, a battery and a power supply circuit.

Control unit 101 functions as abnormality detection unit 111 , alarm control unit 112 , update unit 113 , test unit 114 , transmission unit 115 , reception unit 116 and update control unit 117 . These functions are realized by the processor of the control unit 101 executing a program stored in the storage unit 102 to perform calculations or controlling each unit of its own device.

The abnormality detection unit 111 checks the state of the device itself at predetermined time intervals and detects device abnormality of the device itself. Types of device anomalies include, for example, dead batteries and sensor anomalies. The dead battery indicates a state in which the remaining battery level is low. A sensor abnormality indicates a state in which the output of the fire detection unit 107 is abnormal.

When the abnormality detection unit 111 detects an equipment abnormality, the alarm control unit 112 causes the display unit 105 and the sound output unit 106 to output an alarm indicating the occurrence of the equipment abnormality. For example, the alarm control unit 112 outputs a voice message from the sound output unit 106 and lights the LED of the display unit 105 according to a predetermined lighting pattern.

When the abnormality detection unit 111 detects an equipment abnormality, the updating unit 113 updates the status information stored in the storage unit 102 to indicate the equipment abnormality. In addition, update unit 113 of base device 10b updates the state information of child device 10a stored in storage unit 102 when a signal including the state information received from child device 10a is received. This signal includes an equipment failure signal and a test result signal. An equipment abnormality signal is a signal indicating an equipment abnormality. The test result signal is a signal indicating the result of the test for confirming the operation.

The testing section 114 conducts a test for confirming the operation of the device itself. For example, in this test, it is determined whether or not the abnormality detection unit 111 has detected a dead battery or a sensor abnormality.

The transmitter 115 transmits various signals to the other alarm device 10 and the alarm transfer device 20 . For example, when the abnormality detection unit 111 detects an equipment abnormality, the transmission unit 115 transmits an equipment abnormality signal. Further, when the testing section 114 performs the test, the transmission section 115 transmits a test result signal indicating the result of the test. In addition, the transmission unit 115 of the master device 10b transfers various signals received from the other alarm devices 10 to the alarm transfer device 20 and further to the other alarm devices 10 . This means that even if the alarm transfer device 20 belonging to the same group or another alarm device 10 is installed outside the wireless communication range of another alarm device 10, these devices will be This is so that the transmitted signal can be received.

The receiver 116 receives various signals from other alarm devices 10 and the alarm transfer device 20 . This signal includes an equipment error signal.

The update control unit 117 of the parent device 10b satisfies a predetermined condition indicating that the child device 10a in which the device abnormality has occurred has been replaced with a new child device 10a having the same address as the child device 10a. prohibits updating unit 113 from updating the state information stored in storage unit 102 in association with this address to new state information even if a signal containing this address and state information is received.

FIG. 3 is a diagram showing an example of the configuration of the information transfer device 20. As shown in FIG. The report transfer device 20 includes a control section 201, a storage section 202, a communication section 203, an operation section 204, a display section 205, a sound output section 206, a report transfer output section 207, and a power supply section 208. . Each part of the information transfer device 20 is connected via a bus or a power line. The control unit 201, the storage unit 202, the communication unit 203, the operation unit 204, the display unit 205, the sound output unit 206, and the power supply unit 208 are basically the control unit 101, the storage unit 102, and the communication unit of the alarm device 10, respectively. It is the same as the unit 103 , the operation unit 104 , the display unit 105 , the sound output unit 106 and the power supply unit 108 . However, the storage unit 202 stores information such as a group ID necessary for receiving abnormality information such as a fire that has occurred within the group.

When a device error occurs in the alarm device 10 , the report transfer output unit 207 outputs a report transfer signal that notifies the occurrence of the device error to the external device 30 . The report output unit 207 includes contacts connected to the external device 30 . This contact is, for example, a break contact and is normally closed. In this example, the report transfer output unit 207 has a contact relay, but may have a non-contact relay.

The control unit 201 functions as a receiving unit 211 , an alarm control unit 212 and a contact control unit 213 . These functions are realized by the processor of the control unit 201 executing a program stored in the storage unit 202 to perform calculations or controlling each unit of its own device.

The receiver 211 receives various signals from the alarm device 10 . This signal includes an equipment failure signal and a test result signal. The receiving unit 211 may directly receive these signals from the child device 10a or the parent device 10b, or may receive signals transferred from the parent device 10b.

When the signal received by the receiving unit 211 indicates that at least one alarm device 10 in the group has an equipment abnormality, the alarm control unit 212 causes the display unit 205 to output an alarm regarding the equipment abnormality. .

The contact control section 213 controls the contact of the report output section 207 according to the signal received by the receiving section 211 . For example, the contact control unit 213 switches the connection state of the contacts using the electromagnetic force of the coil paired with the contacts. When the signal received by the receiving unit 211 indicates that an equipment abnormality has occurred in at least one alarm device 10 in the group, the contact control unit 213 changes the contact connection state of the alarm output unit 207. By switching, the alarm output unit 207 is caused to output to the external device 30 a signal to notify that the alarm device 10 has a device abnormality. Further, when the signal received by the receiving unit 211 indicates that the states of all the alarm devices 10 in the group have returned to normal, the contact control unit 213 connects the contacts of the alarm transfer output unit 207. The state is switched to stop the output of this transfer signal.

2. Operation FIGS. 4 and 5 are sequence charts showing an example of the operation when a device failure occurs in the child device 10a-1. This operation is started when the child device 10a-1 detects a device abnormality. Child device 10a-1 is an example of a first detector according to the present invention.

In step S11, the abnormality detection unit 111 of the child device 10a-1 detects the device abnormality when the device abnormality occurs in the child device 10a-1. One of device malfunctions is a dead battery. The abnormality detection unit 111 determines whether or not the voltage value of the battery is equal to or higher than the predetermined operating voltage value of the child device 10a-1 at predetermined time intervals. When it is determined that the voltage value of the battery is less than the operating voltage value consecutively for a predetermined number of times, the abnormality detection unit 111 detects the dead battery. In addition, the device abnormality includes sensor abnormality. The abnormality detection unit 111 determines whether or not the output of the fire detection unit 107 is within a predetermined normal range at predetermined time intervals. Here, for example, in the photoelectric fire detection unit 107, when a component failure or contamination of the fire detection unit 107 occurs, the output of the fire detection unit 107 is out of the normal range. When the output of the fire detection unit 107 is out of the normal range and this state is determined continuously for a predetermined number of times, the abnormality detection unit 111 detects sensor abnormality.

In step S12, the alarm control unit 112 of the child device 10a-1 causes the display unit 105 and the sound output unit 106 to output an alarm indicating the occurrence of a device abnormality. At this time, the alarm control unit 112 outputs different alarms depending on the type of device abnormality. For example, when a dead battery is detected, the alarm control unit 112 causes the sound output unit 106 to output a voice message "The battery is dead." Let On the other hand, when a sensor abnormality is detected, the alarm control unit 112 causes the sound output unit 106 to output a voice message “Sensor abnormality”, and also causes the LED of the display unit 105 to blink three times at a predetermined second blinking period. blink. In addition, although the difference is displayed by the number of flashes here, the display color and flashing period of the LED may be different.

In step S13, the transmitter 115 of the child device 10a-1 wirelessly transmits the device abnormality signal. Either the processing of step S12 or the processing of step S13 may be performed first, or may be performed in parallel. The equipment abnormality signal includes status information indicating the equipment abnormality and information indicating the type of the equipment abnormality. In addition, the address of the child device 10a-1 and the group ID are added to the device abnormality signal so that it can be known which device has detected the device abnormality with respect to other devices belonging to the same group. Since the group ID included in the device error signal matches the group ID stored in storage unit 102 of parent device 10b, receiving unit 116 of parent device 10b receives the device error signal transmitted from child device 10a-1. receive.

In step S14, the alarm control unit 112 of the master device 10b causes the display unit 105 and the sound output unit 106 to output an alarm indicating the occurrence of an equipment abnormality. At this time, the alarm control unit 212 displays different alarms depending on the type of equipment abnormality indicated by the equipment abnormality signal. For example, if the type of device abnormality is a dead battery, the alarm control unit 112 blinks the LED of the display unit 105 once at a predetermined second blinking cycle. On the other hand, when the type of device abnormality is sensor abnormality, the alarm control section 112 causes the LED of the display section 105 to blink three times at a predetermined second blinking period. In addition, although the difference is displayed by the number of flashes here, the display color and flashing period of the LED may be different.

In step S15, the updating unit 113 of the parent device 10b updates the status information of the child device 10a-1 stored in the storage unit 102 according to the received device abnormality signal. The received device error signal includes the address of the child device 10a-1 and status information indicating the device error. The updating unit 113 of the parent device 10b updates the status information stored in the storage unit 102 in association with the address of the child device 10a-1 to indicate the device abnormality.

In step S16, the transmitting unit 115 of the parent device 10b confirms that the transmission of the device abnormality signal from the child device 10a-1 that detected the device abnormality has stopped, and then wirelessly transmits the device abnormality signal to the notification transfer device 20. to transfer. Since the group ID included in the device error signal matches the group ID stored in storage unit 202, receiving unit 211 of information transfer device 20 receives the device error signal transferred from master device 10b. Although the other slave device 10a-1 can also receive the device abnormality signal, in this embodiment, the other slave device 10a-1 does not perform processing according to the device abnormality signal.

In step S<b>17 , the alarm control unit 212 of the alarm transfer device 20 causes the display unit 205 to display an alarm indicating that the alarm device 10 has malfunctioned. At this time, the alarm control unit 212 displays different alarms depending on the type of equipment abnormality indicated by the equipment abnormality signal. For example, if the type of device abnormality is a dead battery, the alarm control unit 212 blinks the LED of the display unit 205 once at a predetermined second blinking period. On the other hand, when the type of device abnormality is sensor abnormality, the alarm control section 212 causes the LED of the display section 205 to blink three times at a predetermined second blinking period. In addition, although the difference is displayed by the number of flashes here, the display color and flashing period of the LED may be different.

In step S<b>18 , the contact control unit 213 of the alarm device 20 controls the contacts to cause the alarm output unit 207 to output a signal to the external device 30 to notify that the alarm device 10 has malfunctioned. For example, normally, the contact is in a closed state and current flows through the external device 30 . However, upon receiving the device abnormality signal, the contact control unit 213 switches the contact to the open state. When the contact switches to the open state, the conduction between both ends of the contact is lost, and the current does not flow to the external device 30 . Thereby, the external device 30 recognizes that the alarm device 10 has a device abnormality. Then, the external device 30 transmits, for example, a signal indicating the occurrence of a device abnormality in the alarm device 10 to the control center of the management company. As a result, the management company can recognize that the alarm device 10 installed in the building to be managed has an equipment abnormality, and the worker can move to the building to be managed to deal with the equipment abnormality. The output of this report transfer signal is continued until the output of the report transfer signal is stopped.

Here, it is assumed that the handset 10a-1 in which a device abnormality has occurred is replaced with another handset 10a-2 by a general user in the building to be managed before the worker arrives. Child device 10a-2 is an example of a second detector according to the present invention. Further, it is assumed that the same address as that of the child device 10a-1 is set to the child device 10a-2 after replacement. As a method of setting an address in the child device 10a-2, for example, a general user connects a setting device to the child device 10a-2, operates the setting device, and sets the same address as that of the child device 10a-1 to the child device 10a. There is a way to set it to -2. As another method, for example, when the child device 10a-2 has a function of setting an address, the general user operates the child device 10a-2 to set the same address as the child device 10a-1. There is a way to set it to -2. The address set in this manner is stored in storage unit 102 of child device 10a-2.

When the work of replacing the child device 10a-1 with the child device 10a-2 is completed, the general user presses the test button of the operation unit 104 of the child device 10a-2 in step S21. When the test button is pressed, in step S22, the testing unit 114 of the slave device 10a-2 executes a test for confirming the operation of the slave device 10a-2. For example, prior to this process, the anomaly detection unit 111 checks the state of the device itself at predetermined time intervals. The test unit 114 determines whether the abnormality detection unit 111 has detected a dead battery or a sensor abnormality. Alternatively, the test unit 114 causes the abnormality detection unit 111 to measure the voltage value of the battery in response to pressing of the test button, and determines whether the abnormality detection unit 111 has detected the dead battery according to the measured voltage value. do. Further, the test section 114 operates the fire detection section 107 in response to pressing of the test button, and determines whether or not the abnormality detection section 111 detects sensor abnormality in response to the output of the fire detection section 107 . Here, it is assumed that the abnormality detection unit 111 does not detect battery exhaustion or sensor abnormality, and that the child device 10a-2 is normal as a result of the test. In this case, state information indicating a normal state is stored in storage unit 102 of child device 10a-2.

In step S23, the transmitter 115 of the slave device 10a-2 wirelessly transmits a test result signal indicating the result of the test performed in step S22. In this example, the test result signal includes status information indicating a normal status stored in storage unit 102 of child device 10a-2. Also, the test result signal is added with the address and group ID of slave device 10a-2 so that it can be known which device has tested other devices belonging to the same group. The address of the child device 10a-2 is the same as the address of the child device 10a-1. Since the group ID included in the test result signal matches the group ID stored in storage unit 102 of base device 10b, receiving unit 116 of base device 10b receives the test result signal transmitted from handset 10a-2. receive.

In step S24, when the update control unit 117 of the master device 10b receives the test result signal, the slave device 10a-1 in which the device abnormality has occurred is updated to a new slave device 10a to which the same address as the slave device 10a-1 is set. A determination is made as to whether or not a predetermined condition indicating that it has been replaced with -2 is satisfied. This predetermined condition is, for example, that the received signal is the test result signal, the state information stored in the storage unit 102 in association with the address included in the test result signal indicates an equipment abnormality, and the state included in the test result signal is The condition is that the information indicates a normal state. If the predetermined condition is not satisfied, the determination in step S24 is NO. In this case, proceeding to step S25, update unit 113 of master device 10b updates the state information stored in storage unit 102 in association with the address included in the test result signal according to the received test result signal. .

In step S26, after confirming that the transmission of the test result signal from the child device 10a-2 that has been tested has stopped, the transmission unit 115 of the master device 10b wirelessly transmits the test result signal to the report transfer device 20. Send. Since the group ID included in the test result signal matches the group ID stored in storage unit 202, receiving unit 211 of information transfer device 20 receives the test result signal transferred from master device 10b.

In step S27, when the status information included in the received test result signal indicates a normal state, the contact control unit 213 of the alarm transfer device 20 means that the device abnormality of the alarm device 10 has been recovered. , the output of the report signal from the report output unit 207 is stopped by controlling the contacts. For example, the contact control unit 213 switches the contact to the closed state. When the contact switches to the closed state, both ends of the contact become conductive and current flows through the external device 30 . Thereby, the external device 30 recognizes that the alarm device 10 has recovered from the device abnormality.

On the other hand, when the child device 10a-1 in which the device abnormality occurred is replaced with the child device 10a-2, and the same address as the child device 10a-1 is set to the child device 10a-2, it is included in the test result signal. The status information stored in the storage unit 102 in association with the address indicates an equipment failure. Also, the test result signal includes status information indicating a normal status. In this case, since the predetermined condition described above is satisfied, the determination in step S24 becomes YES. When the child device 10a-1 in which the device abnormality has occurred is replaced with a new child device 10a-2 in which the same address as the child device 10a-1 is set, the worker confirms the state of the child device 10a-1 before the replacement. It is preferable that the status information of the alarm device 10 before replacement is retained so that it can be recognized. Therefore, if the predetermined condition is satisfied, the process proceeds to step S28, and the update control section 117 of the master device 10b prohibits the updating section 113 from updating the status information according to the test result signal. When update of the status information is prohibited, updating unit 113 of master device 10b updates the status information stored in storage unit 102 in association with the address included in the test result signal to the normal status included in the test result signal. , the status information stored in the storage unit 102 is maintained as the status information indicating the device abnormality. In addition, since the test result signal including the state information indicating the normal state is not transmitted from the master device 10b to the report transfer device 20, the report transfer signal from the report transfer device 20 to the external device 30 started in step S18 described above is not transmitted. Output continues.

Note that the test result signal may be transmitted from master device 10b to information transfer device 20 even when it is determined in step S24 that the predetermined condition is satisfied. However, in this case, the test result signal includes the state information before update stored in the storage unit 102 in association with the address included in the test result signal, that is, the state information indicating the device abnormality. As a result, even if the test result signal is transmitted from the parent device 10b to the report transfer device 20, the output of the report transfer signal from the report transfer device 20 to the external device 30 started in step S18 is continued.

In general, when an equipment abnormality occurs in the alarm device 10, the management company moves the operator to the installation location of the alarm device 10 to deal with the equipment abnormality, and notifies that the alarm device 10 has returned to a normal state. It is necessary to confirm. Therefore, it is preferable that the output of the report transfer signal from the report transfer device 20 is continued until the operator confirms. According to the above-described embodiment, while the notification transfer signal is being output from the notification transfer device 20 in response to the device abnormality occurring in the child device 10a, the general user can confirm that the child device 10a in which the device abnormality has occurred is the same. Even if the handset 10a is replaced with another handset 10a to which the address is set and a test is conducted to confirm the operation of the new handset 10a after the replacement, the output of the transfer signal continues regardless of the result of this test. be done. Therefore, even after the child device 10a in which the device abnormality has occurred is replaced with a new child device 10a, the management company can recognize the device abnormality of the child device 10a before the replacement and appropriately deal with it. In other words, a proper person can correctly replace the child device 10a in which the device abnormality has occurred.

3. Modifications The invention is not limited to the embodiments described above. The above-described embodiment may be modified and implemented as in the following modified examples. The embodiment and the modification may be used in combination, or may be used by switching along with execution. Similarly, the following modified examples may be used in combination, or may be used by switching according to execution.

Modification 1
In the embodiments described above, the predetermined conditions are not limited to the examples described in the embodiments. For example, the predetermined condition may include, in addition to the conditions described in the embodiment, that the test result signal is received before the predetermined signal is transmitted from the slave device 10a-2 after replacement. This predetermined signal includes the initial periodic signal. A periodic signal is a signal transmitted from the slave device 10a at predetermined time intervals. The periodic signal includes the address and status information of the child device 10a.

Here, the operation when the predetermined signal is the first regular signal will be described. In this case, in addition to the conditions described in the embodiment, if the condition that the test result signal is received before the first periodic signal is received from child device 10a-2 is satisfied, update control section 117 of parent device 10b is satisfied. prohibits the updating unit 113 from updating the status information according to the test result signal. That is, the update control unit 117 of the master device 10b updates the status information stored in the storage unit 102 in association with the address of the slave device 10a-1 to indicate the device abnormality, and then updates the status information to indicate the device abnormality. If a test result signal containing this address and state information indicating a normal state is received before the signal is received, the updating unit 113 updates the state information according to this test result signal. prohibited.

Methods for identifying and determining the initial periodic signal include the following methods. For example, when a battery connection signal notifying that power is turned on is transmitted from the child device 10a-2 to the base device 10b in response to the power-on of the child device 10a-2, this battery connection The periodic signal transmitted from the handset 10a-2 following the signal is the first periodic signal. Alternatively, when the slave device 10a-2 transmits a periodic signal for the first time after the power is turned on, the periodic signal may include initial information indicating that it is the first periodic signal. In this case, the regular signal including the initial information becomes the initial regular signal.

In the former example, when the battery connection signal is received, it can be determined whether or not the test result signal has been received before the first periodical signal is received. When the test result signal is received, a process of determining whether or not a predetermined condition is satisfied is performed. On the other hand, in the latter example, until the periodic signal is received, it cannot be determined whether the test result signal was received before the first periodic signal was received. Therefore, when the test result signal is received, the process of determining whether or not the predetermined condition is satisfied is suspended until the next periodic signal is received.

According to this modified example, when the slave device 10a in which the device abnormality has occurred is replaced with a new slave device 10a in which the same address as the slave device 10a is set, a predetermined signal is sent from the new slave device 10a. is received, the status information of the handset 10a before replacement is held without being updated. After the predetermined signal is received from the new handset 10a, the state information of the handset 10a before replacement is updated to the state information of the handset 10a after replacement. can recognize.

Modification 2
In the above-described embodiment, the update control section 117 of the base device 10b may allow the update section 113 to update the status information according to the test result signal if the update condition is satisfied. The update condition may be, for example, a condition that an abnormality recovery button on the operation unit 104 of the base device 10b is pressed. This error recovery button is pressed, for example, after the operator confirms that the device error has been recovered. Alternatively, the update condition may be a condition that the test result signal is received multiple times from the child device 10a-2 within a predetermined time. For example, after confirming that the device has recovered from the device abnormality, the worker presses the test button on the operation unit 104 of the replacement slave device 10a-2 a plurality of times within a predetermined time, thereby enabling the replacement of the slave device 10a-2 within a predetermined time. 2 transmits the test result signal multiple times. When update control section 117 permits update, update section 113 of base device 10b updates the status information according to the test result signal. According to this modification, even if the child device 10a in which the device abnormality has occurred is replaced with a new child device 10a in which the same address as the child device 10a is set, the operator can confirm that the device has recovered from the device abnormality. After confirmation, the status information of the slave device 10a before replacement is updated to the status information of the slave device 10a after replacement according to the test result signal, so that the status of the slave device 10a after replacement can be recognized. can.

Modification 3
In the above-described embodiment, when the child device 10a-1 in which a device abnormality has occurred is replaced with a new child device 10a-2, if the child device 10a-2 after replacement also has a device abnormality, the replacement A process of notifying the subsequent child device 10a-2 that there is a device abnormality may be performed. For example, the update control unit 117 of the base unit 10b determines that the received signal is the test result signal, the status information stored in the storage unit 102 in association with the address included in the test result signal indicates the device abnormality, and the test result signal indicates a device failure, it is determined that the slave device 10a-2 after replacement has a device failure. When it is determined that the child device 10a-2 after replacement has a device abnormality, for example, the alarm control unit 112 of the parent device 10b displays information indicating that the alarm device 10 after replacement has a device abnormality on the display unit 105. may be displayed. Further, the transmission unit 115 of the master device 10b may wirelessly transmit a signal notifying that the replaced alarm device 10 has a device abnormality. Upon receiving this signal, the contact control unit 213 of the alarm device 20 may output the alarm signal in an output format for notifying that the replaced alarm device 10 has a device abnormality. This output format may be such that, for example, the output of the report transfer signal for notifying the equipment abnormality is stopped for a predetermined period of time, and then the output of this report transfer signal is restarted. Alternatively, this output format may repeat the output and stop of the alarm shift signal at a predetermined cycle. According to this modification, when there is a device abnormality in the slave device 10a after replacement, the management company can recognize that there is a device malfunction in the slave device 10a after replacement.

Modification 4
In the above-described embodiment, the parent device 10b may have the function of setting the address of the child device 10a. In this case, the master device 10b sets the address of the slave device 10a according to the operation using the operation unit 104, for example.

Modification 5
In the above-described embodiment, the device abnormality of the alarm device 10 is not limited to battery exhaustion and sensor abnormality. The device anomaly may be any anomaly such as a radio anomaly as long as it is an anomaly related to the device of the alarm device 10 .

Modification 6
In the above-described embodiment, when transferring the signal received from the child device 10a, the transmission unit 115 of the parent device 10b does not necessarily confirm that the transmission of the signal from the child device 10a has stopped before transferring the signal. good too. For example, the transmission unit 115 may transfer the signal after a predetermined period of time has passed since the signal was received from the child device 10a, or may transfer the signal immediately after receiving the signal from the child device 10a.

Modification 7
In the above-described embodiment, when the information transfer device 20 is installed within the wireless communication range of the child device 10a, the signal transmitted from the child device 10a reaches the information transfer device 20 as it is. In this case, the signal transfer device 20 may directly receive a signal from the slave device 10a and perform processing according to the received signal.

Modification 8
In the above-described embodiment, the contents of the warnings of the slave device 10a, the master device 10b, and the alarm transfer device 20 are examples, and the present invention is not limited to these. For example, the voice message may be output from the sound output unit 206 in the information transfer device 20 as well as in the child device 10a and the parent device 10b.

Modification 9
In the embodiment described above, the management device that manages the status information of the alarm device 10 is not limited to the master device 10b. The management device may be any device other than the master device 10b, such as one of the slave devices 10a, the alarm transfer device 20, or a relay device of the regional disaster prevention system. In short, the management device according to the present invention is not limited to the master device 10b, and may be any device as long as it has the function of managing the status information of the alarm device 10. FIG.

Modification 10
The detector according to the present invention is not limited to the alarm device 10, and does not necessarily have to issue an alarm. For example, the detector may be a non-alarm detector or a fire sensor. The present invention may also be applied to a system that warns of the occurrence of phenomena other than fires. In this modified example, the alarm device 10 may detect a phenomenon other than a fire, such as a gas alarm device or a motion sensor, and issue an alarm. Detecting phenomena other than fires, such as gas alarms and motion sensors, and issuing alarms are also examples of detectors according to the present invention. In short, the detector according to the present invention may be any device as long as it detects anomalies occurring in the monitored area. This abnormality is not limited to a fire, and may be any abnormality such as a gas leak or an intrusion of a suspicious person.

Modification 11
In the embodiment described above, the configuration of the alarm system 1 is not limited to the example described above. The alarm system 1 may be configured to include one or more of the devices described above, or may be configured without some devices. For example, the alarm system 1 does not necessarily include the child device 10a and the parent device 10b, and may include a plurality of alarm devices 10 that are not distinguished from each other. The configurations of the alarm device 10 and the alarm transfer device 20 may also be configured to include one or more of the configurations described above, or may be configured without some of the configurations.

The report transfer output unit 207 may have any circuit configuration as long as it can realize the function of the report transfer output unit 207 . The report transfer output unit 207 may be configured to include one or more of the circuit elements described above, or may be configured without some circuit elements. For example, the contact of the report output section 207 may be a make contact or a transfer contact, or the report output section 207 may have a plurality of contacts. When the contact of the report output unit 207 is a make contact, the contact is normally open and no current flows through the external device 30 . However, upon receiving the device abnormality signal, the contact control unit 213 switches the contact to the closed state. When the contact switches to the closed state, both ends of the contact become conductive and current flows through the external device 30 . Thereby, the external device 30 recognizes that the alarm device 10 has a device abnormality. Further, when stopping the output of the report transfer signal, the contact control section 213 switches the contacts of the report transfer output section 207 to the normal open state. When the contact switches to the open state, the conduction between both ends of the contact is lost, and the current does not flow to the external device 30 . As a result, the external device 30 side recognizes that the device abnormality of the alarm device 10 has been recovered. When the contact of the report output unit 207 is a break contact as in the above-described embodiment, the current stops flowing to the external device 30, thereby outputting a report transfer signal that indicates the occurrence of a device abnormality. On the other hand, when the contact of the report output unit 207 is a make contact as in this modification, a current flows through the external device 30, thereby outputting a report transfer signal indicating that the device is abnormal.

In the above-described embodiment, the control unit 101 of the alarm device 10 includes circuits such as DSP, ASIC, PLD, FPGA, etc., and at least part of the functions of the alarm device 10 may be realized by this circuit. Similarly, the control unit 201 of the report transfer device 20 may also include this circuit, and at least part of the functions of the report transfer device 20 may be realized by this circuit.

Modification 12
In the embodiment described above, the operation of the alarm system 1 is not limited to the examples described above. The order of the processing procedures of the alarm system 1 may be changed as long as there is no contradiction. Moreover, some processing procedures of the alarm system 1 may be omitted.

Modification 13
Another aspect of the present invention may provide a method comprising steps of processing performed in the alarm system 1 , the child device 10 a , the parent device 10 b and/or the alarm transfer device 20 . Further, still another aspect of the present invention may provide a program executed in the child device 10a, the parent device 10b, and the information transfer device 20. FIG. This program may be provided by being stored in a computer-readable recording medium, or may be provided by downloading via the Internet or the like.

1: alarm system, 10: alarm device, 10a: child device, 10b: parent device, 20: alarm transfer device, 30: external device, 111: abnormality detection unit, 112: alarm control unit, 113: update unit, 114: test unit 115: transmission unit 116: reception unit 117: update control unit 211: reception unit 212: alarm control unit 213: contact control unit

Claims (5)

a storage unit that stores state information of the first detector in association with an identifier of the first detector that detects an abnormality that has occurred in the monitored area;
an updating unit that, when a signal including the identifier and new state information is received, updates the state information stored in the storage unit in association with the identifier to the new state information;
When a predetermined condition indicating that the first detector in which the equipment abnormality has occurred has been replaced with a new second detector in which the same identifier as the first detector is set, the update unit and an update control unit that prohibits update of the state information stored in the storage unit in association with the identifier to the new state information. The predetermined condition is that the signal is a test result signal indicating a result of a test for confirming operation, the status information stored in the storage unit in association with the identifier included in the signal indicates a device abnormality, The management device according to claim 1, wherein the condition is that the new state information included in the signal indicates a normal state. 3. The management device according to claim 2, wherein said predetermined condition further includes a condition that said test result signal is received before a predetermined signal containing said identifier identical to said first detector is received. . An alarm system comprising a management device and an alarm transfer device,
The management device
a storage unit that stores state information of the first detector in association with an identifier of the first detector that detects an abnormality that has occurred in the monitored area;
an updating unit that, when a signal including the identifier and new state information is received, updates the state information stored in the storage unit in association with the identifier to the new state information;
When a predetermined condition indicating that the first detector in which the equipment abnormality has occurred has been replaced with a new second detector in which the same identifier as the first detector is set, the update unit an update control unit that prohibits updating the state information stored in the storage unit in association with the identifier to the new state information;
a transmitting unit configured to transmit the state information stored in the storage unit;
The transfer device is
a receiver that receives the state information;
and a report transfer output unit that outputs a report transfer signal to an external device when the status information indicates the device abnormality. Further comprising the first detector and the second detector,
5. The alarm system of claim 4, wherein each of said first detector and said second detector transmits said signal.

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