JP6868820B2 - Relay system and fire alarm system equipped with it - Google Patents

Description

The present invention relates to a relay system and a fire alarm system, and more particularly to a relay system and a fire alarm system that relay communication between a receiver and a plurality of detectors.

Conventionally, as a self-fire alarm system, when an abnormality is detected by self-diagnosis or test of a fire receiver, a signal line, and a fire detector, the content of the abnormality is automatically displayed in characters for each specific area on the display unit. A fire alarm system has been proposed (Patent Document 1).

In the automatic fire alarm system described in Patent Document 1, a plurality of repeaters having an isolator function are connected to a transmission line derived from a fire receiver, and a sensor line derived from each of the plurality of repeaters is connected. Is connected to multiple fire detectors with an attached address.

Japanese Unexamined Patent Publication No. 11-96480

In a conventional fire alarm system, as at least one of the number of repeaters and the number of fire detectors connected to each repeater increases, it is necessary for an automatic test (regular automatic test) that is performed once a week. The time will be long.

An object of the present invention is to provide a relay system and a fire alarm system capable of shortening the time of an automatic test in a fire alarm system.

One aspect of the relay system according to the present invention relays communication between a receiver and a plurality of detectors, each of which has an automatic test function. The relay system includes a first communication unit, a second communication unit, and a control unit. The first communication unit communicates with the receiver. The second communication unit communicates with the plurality of detectors. The control unit controls the second communication unit so that an automatic test request is transmitted from the second communication unit to each of the plurality of detectors, and the control unit acquires the second communication unit via the second communication unit. The first communication unit is controlled so that the test results of each of the plurality of detectors are transmitted from the first communication unit to the receiver.

One aspect of the fire alarm system according to the present invention includes a receiver, a plurality of detectors each having an automatic test function, and the above-mentioned relay system.

The relay system and the self-fire alarm system of the present invention can shorten the time for automatic testing in the self-fire alarm system.

FIG. 1 is a system configuration diagram of a fire alarm system including a relay system according to an embodiment of the present invention. FIG. 2 is a sequence diagram showing an example of the operation of the self-fire alarm system including the relay system of the same. FIG. 3 is a sequence diagram showing an example of the operation of the fire alarm system including the relay system according to the first modification of the embodiment of the present invention. FIG. 4 is a sequence diagram showing an example of the operation of the fire alarm system including the relay system according to the second modification of the embodiment of the present invention. FIG. 5 is a sequence diagram showing an example of the operation of the fire alarm system including the relay system according to the third modification of the embodiment of the present invention.

(Embodiment)
Hereinafter, the fire alarm system 100 including the relay system 20 of the present embodiment will be described with reference to FIGS. 1 and 2.

The self-fire alarm system 100 is a disaster prevention system capable of notifying the occupants of a fire prevention object of the occurrence of a fire, for example, when the occurrence of a fire is detected. Fire prevention objects include, for example, office buildings, theaters, movie theaters, public halls, amusement parks, complex facilities, restaurants, department stores, hotels, inns, hospitals, nursing homes, kindergartens, schools, libraries, museums, art galleries, underground malls, etc. Examples include stations, airports, and apartment buildings.

The fire alarm system 100 includes a receiver 1, a plurality of repeaters 2, a plurality of detectors 3, and a plurality of transmitters 4. In addition, the self-fire alarm system 100 includes a district sound device 5. In the fire alarm system 100, each of the plurality of repeaters 2 constitutes the relay system 20.

The receiver 1 and the plurality of repeaters 2 are connected by a first communication line L1. As an example, the receiver 1 and the plurality of repeaters 2 communicate with each other by an R-type (Record-type) communication method. More specifically, the receiver 1 and the plurality of repeaters 2 communicate with each other via the transmission line L0 by a time division multiplexing transmission method. As the communication protocol of the time division multiplexing transmission method, for example, the communication standard of NMASTER (registered trademark) can be adopted. Here, in the fire alarm system 100, the receiver 1 and the plurality of repeaters 2 each have a unique first address. The first address can be set by an address setter or the like at the time of construction of the self-fire alarm system 100, for example.

The receiver 1 transmits a transmission signal to the first communication line L1. The transmission signal is a bipolar (± 24V) time-division multiplex signal, and data is transmitted by pulse width modulation. The transmitted signal includes a start pulse signal, mode data, address data, control data, checksum data and a signal return period. The start pulse signal is a signal indicating the start of signal transmission. The mode data is data indicating the mode of the transmission signal. The address data is data for calling each of the plurality of repeaters 2. The control data is data for controlling the repeater 2 and the like. Checksum data is data for detecting a transmission error. The signal return period is a time slot for receiving the return signal from the repeater 2.

Each of the plurality of repeaters 2 takes in control data from the transmission signal when the address data included in the transmission signal received via the first communication line L1 matches its own address (first address). Then, each of the plurality of repeaters 2 returns the monitoring data as a current mode signal during the signal return period of the transmission signal. The current mode signal is a signal transmitted by short-circuiting the first communication line L1 via an appropriate low impedance.

When transmitting data to a desired repeater 2, the receiver 1 transmits a transmission signal in which the mode data is set to the control mode and the address (first address) of the desired repeater 2 is set as the address data. Then, in the fire alarm system 100, the repeater 2 having an address matching the address data receives the control data and returns the monitoring data during the signal return period. Then, the receiver 1 confirms that the control data has been transmitted to the desired repeater 2 by the relationship between the transmitted control data and the monitoring data received during the signal return period.

The receiver 1 normally transmits a transmission signal with the mode data as a dummy mode at regular time intervals (always polling). When each of the plurality of repeaters 2 intends to transmit some information to the receiver 1, it generates an interrupt signal in synchronization with the start pulse signal of the transmission signal in the dummy mode. At this time, each of the plurality of repeaters 2 sets an interrupt flag to prepare for subsequent exchange of information with the receiver 1.

When the receiver 1 receives the interrupt signal, the receiver 1 sets the mode data to the interrupt polling mode and sequentially increases the upper half bits of the address data (the upper 4 bits if the address data is 8 bits) to transmit the transmission signal. Send out. When the upper 4 bits of the address data of the transmission signal in the interrupt polling mode match the upper 4 bits of its own address, the repeater 2 that generated the interrupt signal has the lower half bits of the address during the signal return period. Is returned to the receiver 1. As a result, the receiver 1 can recognize the repeater 2 that generated the interrupt signal.

When the receiver 1 acquires the address of the repeater 2 that generated the interrupt signal, the receiver 1 sets the mode data to the monitoring mode and sends a transmission signal having the address data of the acquired address to the first communication line L1. Then, the repeater 2 returns the monitoring data, which is the information to be transmitted, to the transmission signal during the signal return period.

After that, the receiver 1 sends a signal instructing the interrupt reset to the repeater 2 that generated the interrupt signal, and releases the interrupt flag of the repeater 2.

As described above, the transmission of the monitoring data from the repeater 2 to the receiver 1 is performed four times by signal transmission from the receiver 1 to the repeater 2 (dummy mode, interrupt polling mode, monitoring mode, interrupt reset). ) To complete.

The transmission signal used for communication between the receiver 1 and the plurality of repeaters 2 is not limited to a bipolar (± 24V) voltage signal, for example, a transmission method in which the voltage value is appropriately changed between 0 and 24V. But it may be.

Each of the plurality of repeaters 2 and the plurality of detectors 3 and transmitters 4 are connected by a second communication line L2. In short, a second communication line L2 is connected to the repeater 2, and a plurality of detectors 3 and a transmitter 4 are connected to the second communication line L2. As an example, the plurality of detectors 3 and transmitters 4 communicate with the repeater 2 by a P-type (Proprietary-type) communication method. In the fire alarm system 100, each of the plurality of detectors 3 has a unique second address. The second address can be set by an address setter or the like at the time of construction of the self-fire alarm system 100, for example. Each of the plurality of repeaters 2 relays communication between the receiver 1 and the plurality of detectors 3.

Each sensor 3 is, for example, a sensor that senses smoke, a sensor that senses heat, and the like. When each detector 3 detects the occurrence of a fire, each detector 3 outputs a signal (hereinafter, referred to as a fire report) notifying the occurrence of a fire to the second communication line L2. As an example, each transmitter 4 has a push button, and when the push button is pushed, a fire alarm is output to the second communication line L2. When the repeater 2 receives the fire report, the repeater 2 transmits the fire report to the receiver 1 via the first communication line L1. Therefore, the receiver 1 can receive the fire report from at least one detector 3 among the plurality of detectors 3 and at least one transmitter 4 among the plurality of transmitters 4.

The receiver 1 and the district acoustic device 5 are connected by a control line C1. The district acoustic device 5 is controlled by the receiver 1 so as to ring when the receiver 1 receives the fire alarm. The district audio device 5 is installed in various places in the building, for example. The district acoustic device 5 is, for example, a motor-type bell having a bell and a motor for ringing the bell.

Hereinafter, each component of the fire alarm system 100 will be described in more detail.

The receiver 1 is installed, for example, in a disaster prevention center, a management room, or the like of a building that is a fire prevention object. The installation form of the receiver 1 is a self-standing type, but the installation form is not limited to this, and a wall-mounted type may be used. The receiver 1 is, for example, a GR type receiver. The receiver 1 is supplied with power from an external power source. The external power supply is, for example, an AC 100V commercial power supply. The receiver 1 is provided with a backup power source so as to be able to operate even when the commercial power source is out of power.

When the receiver 1 receives a fire report (a signal notifying the occurrence of a fire) from a detector 3, a transmitter 4, etc. installed in a caution area in a building, the receiver 1 performs an operation of notifying the occurrence of a fire. Do. The operation of notifying the occurrence of a fire includes, for example, the operation of ringing the district sound device 5 installed in the building and the operation of notifying a facility outside the building (for example, a fire station) via a telecommunication line. Including. As a result, the fire alarm system 100 can promote evacuation and initial fire extinguishing activities. Further, the receiver 1 is provided with a display unit 14 for displaying a warning area where a fire has occurred. For example, in the Fire Service Act of Japan, the area of one caution area is 600 m ² or less and the length of one side is 50 m or less, and it does not span two or more floors, etc. Is stipulated.

The receiver 1 includes a communication unit 11, a power supply unit 12, a storage unit 13, a display unit 14, an operation unit 15, a power supply unit 16, and a control unit 17.

The first communication line L1 is connected to the communication unit 11. The communication unit 11 communicates with a plurality of repeaters 2 and the like via the first communication line L1 by the time division multiplexing transmission method described above.

The power supply unit 12 generates a DC voltage having a predetermined voltage value (for example, 24V) from a voltage supplied from an external power source (AC voltage having an effective value of 100V). The power supply unit 12 is, for example, a DC stabilization circuit, a step-down chopper circuit, or the like.

The storage unit 13 has, for example, a non-volatile memory such as an EEPROM (Electrically Erasable Programmable Read Only Memory). The storage unit 13 has, for example, the address of the receiver 1, the address of each of the plurality of repeaters 2 (first address), the address of each of the plurality of detectors 3 (second address), and the addresses of the plurality of transmitters 4. Etc. are memorized. Here, the receiver 1 may acquire each address by communication with each of the plurality of repeaters 2 and the plurality of detectors 3, and store the acquired address in the storage unit 13. The control unit 17 can communicate with a plurality of repeaters 2, a plurality of detectors 3, a plurality of transmitters 4, and the like based on the address.

The display unit 14 has a liquid crystal panel display. The display unit 14 can display various types, for example, the location of the warning area where the detector 3 that has transmitted the fire alarm to the receiver 1 is installed, information on the fire alarm, and the automatic test of each detector 3. Information about the result can be displayed. The operation unit 15 accepts an operation for accepting an input when making various settings of the fire alarm system 100 and the like. The receiver 1 includes a touch panel type liquid crystal display as an operation display device including a display unit 14 and an operation unit 15. The operation display device functions as a user interface (GUI: Graphic User Interface). The control unit 17 outputs information to the display unit 14 of the operation display device, and receives the information input from the operation unit 15 (touch pad) of the operation display device. Various screens are displayed on the display unit 14 as needed. The self-fire alarm system 100 may separately include a display device and an operation device.

In the self-fire alarm system 100, for example, a contractor or the like uses an operation display device to associate each warning area with a unique address of a plurality of repeaters 2, a plurality of detectors 3, a transmitter 4, and the like. be able to.

The power supply unit 16 supplies a power supply voltage to the district acoustic device 5 connected to the control line C1. Here, the power supply unit 16 outputs (applies) the power supply voltage to the control line C1 under the control of the control unit 17 when the receiver 1 receives the fire alarm.

The control unit 17 controls the communication unit 11, the power supply unit 12, the storage unit 13, the display unit 14, the operation unit 15, the power supply unit 16, and the like. The control unit 17 mainly includes, for example, a computer having a CPU (Central Processing Unit) and a memory, and realizes various functions by executing a program stored in the memory on the CPU. The program may be pre-recorded in the memory of the computer, may be recorded in a recording medium such as a memory card, and may be provided through a telecommunication line such as the Internet.

The control unit 17 of the receiver 1 in the present embodiment transmits a test request (test request command) related to an automatic test of a plurality of detectors 3 connected to each repeater 2 from the communication unit 11 to each repeater 2. It has a function to make it. In the receiver 1, the control unit 17 is configured to periodically (for example, every 24 hours) transmit a test request from the communication unit 11 to each repeater 2, but the present invention is not limited to this. For example, in the receiver 1, for example, when the operation unit 15 receives a predetermined input, the control unit 17 may cause the communication unit 11 to transmit the test request to the repeater 2.

In the self-fire alarm system 100 of the present embodiment, the plurality of detectors 3 are connected to the second communication line L2 connected to each of the plurality of repeaters 2. In FIG. 1, for convenience of explanation, only two repeaters 2 are shown, and the number of detectors 3 connected to each repeater 2 is two. Further, in FIG. 1, in order to distinguish between the two repeaters 2, one repeater 2 is used as a repeater 2a, and the other repeater 2 is used as a repeater 2b. Further, in order to distinguish between the two detectors 3 connected to the repeater 2a, one sensor 3 is designated as a sensor 3aa and the other sensor 3 is designated as a sensor 3ab. Further, the transmitter 4 connected to the repeater 2a is used as the transmitter 4a. Further, in order to distinguish between the two detectors 3 connected to the repeater 2b, one detector 3 is designated as a detector 3ba and the other detector 3 is designated as a detector 3bb. Further, the transmitter 4 connected to the repeater 2b is used as the transmitter 4b.

Each of the plurality of detectors 3 is attached to, for example, a ceiling material, a wall material, or the like in a building. Examples of the plurality of detectors 3 include a P-type smoke detector with an automatic test function, a P-type heat detector with an automatic test function, and the like.

Each of the plurality of detectors 3 has an automatic test function. The sensor 3 has a function of performing an automatic test and transmitting the test result of the automatic test to the repeater 2. The P-type smoke detector with an automatic test function has a function as an automatic test function of automatically testing whether or not the function for smoke detection is properly maintained. The P-type heat detector with an automatic test function has a function as an automatic test function of automatically testing whether or not the function for heat detection is properly maintained.

In the fire alarm system 100, a plurality of detectors 3 and a transmitter 4 are connected to each of the plurality of repeaters 2. Here, in each of the repeaters 2, the first communication line L1 is connected to the primary side, and the second communication line L2 is connected to the secondary side. The repeater 2 and the plurality of detectors 3 connected to each other can communicate with each other by, for example, a P-type communication method. When the repeater 2 acquires a fire alarm from any of the plurality of detectors 3 connected to the second communication line L2, the repeater 2 converts the fire alarm into a protocol and uses a time division multiplexing transmission method to convert its own address. Use it to send a fire report to receiver 1. In the self-fire alarm system 100, the above-mentioned transmission signal output from the receiver 1 to the first communication line L1 is a time division multiplexing transmission signal. In the self-fire alarm system 100, the receiver 1 performs polling using the addresses of the plurality of repeaters 2, and the fire alarm output from the repeater 2 to which the plurality of detectors 3 are connected is described above. Receive as monitoring data and notify the fire. The repeater 2 has a function of communicating with the receiver 1 using the first communication protocol and a function of communicating with a plurality of detectors 3 using the second communication protocol.

Each of the plurality of detectors 3 includes a communication unit 31, a storage unit 32, a detection unit 34, and a control unit 33.

The communication unit 31 is connected to the repeater 2 via the second communication line L2. As a result, the communication unit 31 communicates with the repeater 2 via the second communication line L2.

The storage unit 32 has, for example, a non-volatile memory such as an EEPROM (Electrically Erasable Programmable Read Only Memory). In the sensor 3, its own address (second address) and the like are stored in the storage unit 32.

The detection unit 34 detects a fire. When the detector 3 is a smoke detector, the detection unit 34 includes a light emitting element and a light receiving element, and detects a fire by detecting the smoke of the fire. When the detector 3 is a heat detector, the detection unit 34 includes a heat detection element, and detects a fire by detecting the heat of the fire.

The control unit 33 controls the communication unit 31, the storage unit 32, and the detection unit 34. The control unit 33 can read the address stored in the storage unit 32. When the communication unit 31 acquires an automatic test request from the repeater 2, the control unit 33 controls the detection unit 34 to perform an automatic test. The control unit 33 includes, for example, a microcontroller. The microcontroller is configured as a one-chip device including a processor that operates according to a program, a memory for storing a program for operating the processor, and a working memory. Regarding the control unit 33, the control unit 33 can be realized by causing the microcontroller to execute an appropriate program.

The control unit 33 controls the communication unit 31 so that the communication unit 31 changes the voltage between the lines of the second communication line L2 to transmit a signal from the communication unit 31 to the second communication unit 22 of the repeater 2. The control unit 33 communicates the transmission signal including the second address as a current signal by changing the current value of the current flowing through the second communication line L2 in the communication unit 31 between at least two levels out of the three levels. The communication unit 31 may be controlled so as to be transmitted from the unit 31.

A transmitter 4 is connected to the end of the second communication line L2 to which a plurality of detectors 3 are connected. The transmitter 4 is connected to the receiver 1 by a two-wire response line A1 and a two-wire telephone line TE1 respectively. The transmitter 4 has a push button, and when the push button is pushed, a fire alarm is output to the second communication line L2. Here, when the repeater 2 receives the fire report, the repeater 2 transmits the fire report to the receiver 1 via the first communication line L1. The transmitter 4 is, for example, a P-type first-class transmitter, but is not limited to this, and may be a P-type second-class transmitter or the like, or a T-type transmitter or the like.

The repeater 2 includes a first communication unit 21, a second communication unit 22, a storage unit 24, and a control unit 23.

The first communication unit 21 communicates with the receiver 1. The first communication unit 21 is connected to the first communication line L1 and communicates with the receiver 1 by a time division multiplexing transmission method.

The second communication unit 22 communicates with a plurality of detectors 3. The second communication unit 22 is connected to the second communication line L2, and changes the voltage between the electric wires of the second communication line L2 to communicate with each of the plurality of detectors 3.

The storage unit 24 has, for example, a non-volatile memory such as EEPROM. In the repeater 2, its own address (first address) and the addresses (second addresses) of each of the plurality of detectors 3 connected to itself are stored in the storage unit 24.

The control unit 23 controls the first communication unit 21, the second communication unit 22, and the storage unit 24. Further, the control unit 23 can read the address stored in the storage unit 24. As shown in FIG. 2, the control unit 23 transmits an automatic test request from the second communication unit 22 of the repeater 2 to each of the plurality of detectors 3 (the automatic test request is transmitted by the second communication protocol). The second communication unit 22 is controlled so as to. On the other hand, as shown in FIG. 2, each of the plurality of detectors 3 that have acquired the automatic test request performs an automatic test and transmits the test result (second communication protocol) of the automatic test to the repeater 2. (The test result is transmitted by the second communication protocol). The control unit 23 controls the first communication unit 21 so that the test results of the plurality of detectors 3 acquired via the second communication unit 22 are individually transmitted from the first communication unit 21 to the receiver 1. To do. As a result, the test results of each of the plurality of detectors 3 are individually transmitted from the repeater 2 to the receiver 1 (the test results are individually transmitted by the first communication protocol).

In the repeater 2, when the control unit 23 acquires a test request for an automatic test from the receiver 1 via the first communication unit 21, the second communication unit 22 automatically tests the plurality of detectors 3. The second communication unit 22 is controlled so that the request is transmitted. The test request for the automatic test from the receiver 1 is an automatic test request transmitted from the receiver 1 by the first communication protocol. Here, the "test request for automatic test" is a command that requests the receiver 1 to perform an automatic test by the automatic test function of the sensor 3 and a response of the test result of the automatic test. Is. In the self-fire alarm system 100 of the present embodiment, the test request for the automatic test from the receiver 1 is a request for each of the plurality of detectors 3. When the control unit 23 of the repeater 2 acquires the test request from the receiver 1, the second communication unit 22 sends the automatic test request to the sensor 3 to which the test request is requested. 2 Controls the communication unit 22. Here, the request source of the test request is the receiver 1, and the request destination (request partner) is the sensor 3.

The control unit 23 includes, for example, a microcontroller. The microcontroller is configured as a one-chip device including a processor that operates according to a program, a memory for storing a program for operating the processor, and a working memory. Regarding the control unit 23, the control unit 23 can be realized by causing the microcontroller to execute an appropriate program.

FIG. 2 shows, in the self-fire alarm system 100 of the present embodiment, for example, for an automatic test (periodic automatic test) performed once a week, there are a plurality of test requests regarding the automatic test of the sensor 3 from the receiver 1. The sequence diagram in the case of being transmitted to the relay system 20 (repeater 2) is shown.

First, a test request for an automatic test is transmitted from the receiver 1 to each of the plurality of repeaters 2 (repeaters 2a and 2b in the illustrated example).

The repeater 2a that has acquired the test request associated with its own first address sequentially connects to each of the plurality of detectors 3 (two detectors 3aa and 3ab in the illustrated example) connected to itself. 2 Send the address and automatic test request. When each of the two detectors 3aa and 3ab receives the automatic test request associated with its second address, it performs its own automatic test and transmits the test result to the repeater 2a (test result response).

The repeater 2a transmits the test result to the receiver 1 each time the test result is received from each of the two detectors 3aa and 3ab (test result response).

Similarly, the repeater 2b that has acquired the test request associated with its first address is attached to each of the plurality of detectors 3 (two detectors 3ba and 3bb in the illustrated example) connected to itself. The second address and the automatic test request are sequentially transmitted. When each of the two detectors 3ba and 3bb receives the automatic test request associated with its second address, it performs its own automatic test and transmits the test result to the repeater 2b (test result response).

The repeater 2b transmits the test result to the receiver 1 each time the test result is received from each of the two detectors 3ba and 3bb (test result response).

As described above, in the relay system 20 (repeater 2) in the self-fire alarm system 100 of the present embodiment, the control unit 23 requests an automatic test from the second communication unit 22 to each of the plurality of detectors 3. Is transmitted, the second communication unit 22 is controlled. Further, the control unit 23 controls the first communication unit 21 so that the test results of each of the plurality of detectors 3 acquired via the second communication unit 22 are transmitted from the first communication unit 21 to the receiver 1. To do. Therefore, in the relay system 20, a plurality of relay systems 20 including itself can transmit an automatic test request to the sensor 3 and receive the test result from the sensor 3 in parallel. As a result, it is possible to overlap the period during which the automatic test is performed by each of the different sensors 3. Therefore, in the relay system 20, it is possible to shorten the time for the automatic test in the self-fire alarm system 100 (for example, the periodic automatic test performed once a week in the self-fire alarm system 100). In the relay system 20, for example, it is assumed that the automatic test request is transmitted and the test result of the automatic test cannot be received from the sensor 3 to which the automatic test request is transmitted within a predetermined time. In this case, for example, the relay system 20 transmits an error signal (for example, a signal indicating that the sensor 3 may have failed) to the receiver 1 instead of the test result. May be good.

The self-fire alarm system 100 of the present embodiment includes a receiver 1, a plurality of detectors 3 each having an automatic test function, and the above-mentioned relay system 20. As a result, in the self-fire alarm system 100, it is possible to shorten the time for the periodic automatic test.

The above embodiment is just one of various embodiments of the present invention. The above-described embodiment can be changed in various ways depending on the design and the like as long as the object of the present invention can be achieved.

The relay system 20 of the first modification of the embodiment and the fire alarm system 100 including the relay system 20 will be described with reference to FIG. Since the basic configuration of the relay system 20 of the first modification 1 and the fire alarm system 100 including the relay system 20 is the same as that of the relay system 20 of the embodiment and the fire alarm system 100 including the relay system 20 (see FIG. 1), illustration and description thereof will be omitted. ..

In the relay system 20 of the first modification, the control unit 23 controls the first communication unit 21 so that the test results of the plurality of detectors 3 are collectively transmitted from the first communication unit 21 to the receiver 1. It differs from the relay system 20 of the embodiment.

FIG. 3 shows a sequence diagram when a test request for an automatic test of the sensor 3 is transmitted from the receiver 1 to a plurality of relay systems 20 (repeater 2) for the periodic automatic test.

First, a test request for an automatic test is transmitted from the receiver 1 to each of the plurality of repeaters 2 (repeaters 2a and 2b in the illustrated example).

The repeater 2a that has acquired the test request associated with its own first address sequentially connects to each of the plurality of detectors 3 (two detectors 3aa and 3ab in the illustrated example) connected to itself. 2 Send the address and automatic test request. When each of the two detectors 3aa and 3ab receives the automatic test request associated with its second address, it performs its own automatic test and transmits the test result to the repeater 2a (test result response).

Similarly, the repeater 2b that has acquired the test request associated with its first address is attached to each of the plurality of detectors 3 (two detectors 3ba and 3bb in the illustrated example) connected to itself. The second address and the automatic test request are sequentially transmitted. When each of the two detectors 3ba and 3bb receives the automatic test request associated with its second address, it performs an automatic test and transmits the test result to the repeater 2b (test result response).

After receiving the test results of the two detectors 3aa and 3ab, the repeater 2a collectively transmits the test results of the two detectors 3aa and 3ab to the receiver 1 (test result response).

After receiving the test results of the two detectors 3ba and 3bb, the repeater 2b collectively transmits the test results of the two detectors 3ba and 3bb to the receiver 1 (test result response).

In the relay system 20 of the modification 1 described above, the control unit 23 causes the first communication unit 21 to collectively transmit the test results of the plurality of detectors 3 to the receiver 1. Therefore, in the relay system 20 of the first modification, it is possible to further shorten the time of the periodic automatic test in the self-fire alarm system 100 as compared with the relay system 20 of the embodiment.

The relay system 20 of the second modification of the embodiment and the fire alarm system 100 including the relay system 20 will be described with reference to FIG. Since the basic configuration of the relay system 20 of the second modification 2 and the fire alarm system 100 including the relay system 20 is the same as that of the relay system 20 of the embodiment and the fire alarm system 100 including the relay system 20 (see FIG. 1), illustration and description thereof will be omitted. ..

In the relay system 20 of the second modification, the test request from the receiver 1 is a batch request for the plurality of detectors 3. Here, the receiver 1 transmits (broadcasts) the test request to the plurality of repeaters 2 by multicast. When the control unit 23 acquires the test request, the control unit 23 controls the second communication unit 22 so that the automatic test request is transmitted from the second communication unit 22 to the plurality of detectors 3.

FIG. 4 shows a sequence diagram when a test request for an automatic test of the sensor 3 is transmitted from the receiver 1 to a plurality of repeaters 2 (relay system 20) for the periodic automatic test.

First, a test request regarding an automatic test of the sensor 3 is transmitted from the receiver 1 to a plurality of repeaters 2 (repeaters 2a and 2b in the illustrated example) by multicast.

The repeater 2a, which has acquired the test request transmitted by multicast, sequentially tests the second address and the automatic test on each of the plurality of detectors 3 (two detectors 3aa and 3ab in the illustrated example) connected to the repeater 2a. Send the request. When each of the two detectors 3aa and 3ab receives the automatic test request associated with its second address, it performs an automatic test and transmits the test result to the repeater 2a (test result response).

The repeater 2a transmits the test result to the receiver 1 each time the test result is received from each of the two detectors 3aa and 3ab (test result response).

Similarly, the repeater 2b that has acquired the test request transmitted by multicast is sequentially connected to each of the plurality of detectors 3 (two detectors 3ba and 3bb in the illustrated example) connected to the repeater 3b. The automatic test request is transmitted by associating the second address of. When each of the two detectors 3ba and 3bb receives the automatic test request associated with its second address, it performs an automatic test and transmits the test result to the repeater 2b (test result response).

The repeater 2b transmits the test result to the receiver 1 each time the test result is received from each of the two detectors 3ba and 3bb (test result response).

In the relay system 20 of the second modification described above, the time for the periodic automatic test can be further shortened as compared with the relay system 20 of the embodiment.

In the relay system 20 of the second modification, similarly to the relay system 20 of the first modification, the control unit 23 causes the first communication unit 21 to collectively transmit the test results of the plurality of detectors 3 to the receiver 1. The first communication unit 21 may be controlled.

The relay system 20 of the third modification of the embodiment and the fire alarm system 100 including the relay system 20 will be described with reference to FIG. Since the basic configuration of the relay system 20 of the third modification and the fire alarm system 100 including the relay system 20 is the same as that of the relay system 20 of the embodiment and the fire alarm system 100 including the relay system 20 (see FIG. 1), illustration and description thereof will be omitted. ..

In the relay system 20 of the third modification, the control unit 23 causes each of the plurality of detectors 3 under its control to perform an automatic test without accepting the test request from the receiver 1. Here, the plurality of subordinate detectors 3 are a plurality of detectors 3 that communicate with the relay system 20. The control unit 23 detects a plurality of subordinates in a cycle (for example, 1 hour) shorter than the cycle of the periodic automatic test of the self-fire alarm system 100 (for example, 1 week) or in a free time when communication with the receiver 1 is not performed. Have each of the vessels 3 perform an automatic test. More specifically, the control unit 23 controls the second communication unit 22 so that the automatic test request is transmitted from the second communication unit 22 to each of the plurality of detectors 3, and the control unit 23 of the plurality of detectors 3 Each test result is acquired via the second communication unit 22. When the control unit 23 acquires a test request for a plurality of detectors 3 from the receiver 1 via the first communication unit 21, the latest test results for each of the plurality of detectors 3 are collectively first communicated. The first communication unit 21 is controlled so as to be transmitted from the unit 21 to the receiver 1.

FIG. 5 shows a sequence diagram for explaining the operation related to the periodic automatic test in the plurality of relay systems 20 (repeater 2).

The repeater 2a sequentially associates the second address of the detector 3 with each of the plurality of detectors 3 (two detectors 3aa and 3ab in the illustrated example) connected to the repeater 2a, and transmits an automatic test request. Perform the operation to be performed periodically. When each of the two detectors 3aa and 3ab receives the automatic test request associated with its second address, it performs an automatic test and transmits the test result to the repeater 2a (test result response).

Similarly, the repeater 2b is automatically tested by sequentially associating the second address of the sensor 3 with each of the plurality of detectors 3 (two detectors 3ba and 3bb in the illustrated example) connected to the repeater 2b. The operation of sending a request is performed periodically. When each of the two detectors 3ba and 3bb receives the automatic test request associated with its second address, it performs an automatic test and transmits the test result to the repeater 2b (test result response).

In the self-fire alarm system 100, when a periodic automatic test is performed once a week, a detector is sent by multicast (broadcast) from the receiver 1 to a plurality of repeaters 2 (repeaters 2a and 2b in the illustrated example). The test request for the automatic test of 3 is transmitted.

When the repeater 2a receives the test request from the receiver 1, the repeater 2a collectively transmits the latest test results for each of the two detectors 3aa and 3ab from the first communication unit 21 to the receiver 1 (test result response). ). Here, the repeater 2a may store the test results for each predetermined number of times of the two detectors 3aa and 3ab in the storage unit 24 in association with the acquisition time, and each time the test results are acquired. You may update to the latest test results.

When the repeater 2b receives the test request from the receiver 1, the repeater 2b collectively transmits the latest test results for each of the two detectors 3ba and 3bb from the first communication unit 21 to the receiver 1 (test result response). ). Here, the repeater 2b may store the test results for each predetermined number of times of the two detectors 3ba and 3bb in the storage unit 24 in association with the acquisition time, and each time the test results are acquired. You may update to the latest test results.

The relay system 20 of the third modification is compared with the relay system 20 of the embodiment in which the automatic test of the sensor 3 is performed after the test request for the automatic test of the sensor 3 is transmitted from the receiver 1 to the plurality of relay systems 20. , It is possible to further shorten the time for regular automatic tests. In short, in the relay system 20 of the modification 3, the appearance from the receiver 1 transmitting the test request regarding the automatic test of the detector 3 to the receiver 1 receiving the test results of all the detectors 3 is apparent. It is possible to shorten the time.

Each self-fire alarm system 100 of the embodiment and the modified examples 1 to 3 may further include emergency broadcasting equipment having a voice alarm function.

Each self-fire alarm system 100 of the embodiment and the modified examples 1 to 3 may further include a gas alarm connected to the receiver 1.

Further, the receiver 1 in each self-fire alarm system 100 of the embodiment and the modified examples 1 to 3 is not limited to the GR type receiver, and may be, for example, an R type (Record type) receiver, a P type receiver, or the like. Further, the fire prevention object in which the fire alarm system 100 is installed may be a detached house or the like.

Further, in each of the self-fire alarm systems 100 of the embodiment and the modified examples 1 to 3, the relay system 20 communicates with the receiver 1 via the first communication line L1 and a plurality of detectors via the second communication line L2. It communicates with 3, but it is not limited to this. For example, the relay system 20 may communicate with the receiver 1 by wireless communication. Further, the relay system 20 may communicate with a plurality of detectors 3 by wireless communication.

Each of the relay systems 20 of the above-described embodiment and the modified examples 1 to 3 has components (for example, a first communication unit 21, a second communication unit 22, a storage unit 24, and a control unit 23 as one device (here, here). , Not limited to the case where the repeater 2) is provided, the relay system 20 may be provided in a plurality of devices in a distributed manner. For example, the relay system 20 includes a device having a first communication unit 21 and a second communication unit 22. The storage unit 24 may be distributed between the device having the device and the device having the storage unit 24 and the control unit 23. Further, the storage unit 24 is not an essential component in the relay system 20, and the control unit 23 is, for example, the storage unit. The relay system 20 may have 24 functions. In any case, the relay system 20 may be distributed to a plurality of devices, or one device may have all the functions.

As is clear from the above-described embodiment and the like, the relay system 20 according to the first aspect relays communication between the receiver 1 and a plurality of detectors 3 each having an automatic test function. The relay system includes a first communication unit 21, a second communication unit 22, and a control unit 23. The first communication unit 21 communicates with the receiver 1. The second communication unit 22 communicates with a plurality of detectors 3. The control unit 23 controls the second communication unit 22 so that the automatic test request is transmitted from the second communication unit 22 to each of the plurality of detectors 3, and the plurality of control units 23 are acquired via the second communication unit 22. The first communication unit 21 is controlled so that the test results of each of the detectors 3 of the above are transmitted from the first communication unit 21 to the receiver 1.

With the above configuration, in the relay system 20, it is possible to shorten the time for the periodic automatic test in the fire alarm system 100.

In the relay system 20 according to the second aspect, in the first aspect, when the control unit 23 acquires the test request for the automatic test from the receiver 1 via the first communication unit 21, the second communication unit 23 The second communication unit 22 is controlled so that the automatic test request is transmitted from the 22 to the plurality of detectors 3. As a result, the relay system 20 can transmit the automatic test request to the plurality of detectors 3 when the test request is acquired from the receiver 1, so that the time of the periodic automatic test in the fire alarm system 100 can be reached. It is possible to shorten the time.

In the relay system 20 according to the third aspect, in the second aspect, the test request from the receiver 1 is a request for each of the plurality of detectors 3. When the test request is acquired, the control unit 23 controls the second communication unit 22 so that the automatic test request is transmitted from the second communication unit 22 to the sensor 3 to which the test request is requested. As a result, in the relay system 20, it is possible to shorten the time for the periodic automatic test in the self-fire alarm system 100.

In the relay system 20 according to the fourth aspect, in the second aspect, the test request from the receiver 1 is a batch request for the plurality of detectors 3. When the control unit 23 acquires the test request, the control unit 23 controls the second communication unit 22 so that the automatic test request is transmitted from the second communication unit 22 to the plurality of detectors 3. As a result, in the relay system 20, it is possible to further shorten the time for the periodic automatic test in the self-fire alarm system 100.

In the relay system 20 according to the fifth aspect, in the first aspect, the control unit 23 communicates with the second communication unit 22 so that the automatic test request is transmitted from the second communication unit 22 to each of the plurality of detectors 3. The unit 22 is controlled, and the test results of each of the plurality of detectors 3 are acquired via the second communication unit 22. When the control unit 23 acquires a test request for a plurality of detectors 3 from the receiver 1 via the first communication unit 21, the latest test results for each of the plurality of detectors 3 are collectively first communicated. The first communication unit 21 is controlled so as to be transmitted from the unit 21 to the receiver 1. As a result, in the relay system 20, it is possible to further shorten the time for the periodic automatic test in the self-fire alarm system 100.

In the relay system 20 according to the sixth aspect, in any one of the second to fourth aspects, the control unit 23 transmits the test results of each of the plurality of detectors 3 from the first communication unit 21 to the receiver 1. The first communication unit 21 is controlled so as to be caused. As a result, in the relay system 20, it is possible to shorten the time for the periodic automatic test in the self-fire alarm system 100.

In the relay system 20 according to the seventh aspect, in any one of the second to fourth aspects, the control unit 23 collectively transmits the test results of the plurality of detectors 3 from the first communication unit 21 to the receiver 1. The first communication unit 21 is controlled so as to be caused. As a result, in the relay system 20, it is possible to further shorten the time for the periodic automatic test in the self-fire alarm system 100.

The fire alarm system 100 according to the eighth aspect includes a receiver 1, a plurality of detectors 3 each having an automatic test function, and the relay system 20 described above. As a result, in the self-fire alarm system 100, it is possible to shorten the time for the periodic automatic test.

1 Receiver 20 Relay system 21 1st communication unit 22 2nd communication unit 23 Control unit 3 Sensor 100 Fire alarm system

Claims (2)

A receiver, a relay system, each relaying a plurality of detectors having an automatic test function, the communication between,
The first communication unit that communicates with the receiver
A second communication unit that communicates with the plurality of detectors,
The second communication unit is controlled so that an automatic test request is transmitted from the second communication unit to each of the plurality of detectors, and the plurality of detectors acquired via the second communication unit. A control unit that controls the first communication unit so that each test result is transmitted from the first communication unit to the receiver is provided .
The control unit controls the second communication unit so that the automatic test request is transmitted from the second communication unit to each of the plurality of detectors, and the test result of each of the plurality of detectors. Is acquired via the second communication unit,
When the control unit acquires a test request for the plurality of detectors from the receiver via the first communication unit, the latest test result for each of the plurality of detectors is obtained by the first communication unit. A relay system characterized in that the first communication unit is controlled so as to be transmitted from the receiver to the receiver. A self-fire alarm system including a receiver, a plurality of detectors each having an automatic test function, and the relay system according to claim 1.

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