JP5620751B2 - Repeater - Google Patents

Description

  The present invention relates to a repeater.

  Conventionally, disaster prevention systems that notify the occurrence of a fire using various types of terminal devices have been used. FIG. 10 is a schematic diagram of a conventional disaster prevention system 101. As shown in FIG. 10, the disaster prevention system 101 includes a wired sensor 110 and a wireless sensor 120 that transmit a fire signal for notifying a fire when a fire is detected in each level of the building, and a push button. Transmitter 130 that transmits a fire signal when operated, relay device 140 that relays the fire signal received from wireless sensor 120 to receiver 150, wired sensor 110, transmitter 130, or relay And a receiver 150 that receives a fire signal from the receiver 140 via the signal line 102. The signal line 102 includes an A line 102a, a C line 102b, and an L line 102c. The A line 102a connects the transmitter 130 and the repeater 140 to each other, and connects the repeater 140 and the receiver 150 to each other. Moreover, the A line 102a is connected across the transmitter 130 provided for each level of the building. On the other hand, the C line 102b and the L line 102c connect the transmitter 130 and the wired sensor 110 to each other, connect the wired sensor 110 and the repeater 140 to each other, and the repeater 140 and the receiver. 150 are connected to each other. A predetermined voltage is applied from the receiver 150 between the A line 102a and the C line 102b and between the L line 102c and the C line 102b. Further, a terminator (not shown) (for example, a resistor) is connected to the termination of the L line 102c and the C line 102b, and the receiver electrically determines whether or not the terminator is connected (for example, as described above). By checking whether the current flowing from the L line 102c to the C line 102b via the terminator is within a predetermined range), it is confirmed whether the L line 102c and the C line 102b are disconnected. Yes.

  In such a configuration of the disaster prevention system 101, as a method of transmitting the fire signal of the terminal device to the receiver 150, for example, the terminal device short-circuits the signal line 102 connected to the terminal device. A fire signal of the terminal device is transmitted to the receiver 150. Specifically, in the case of a fire signal from the transmitter 130, the transmitter 130 short-circuits the A line 102a, the C line 102b, and the L line 102c connected to the transmitter 130, thereby the A line 102a. In addition, a current flows from the L line 102c toward the C line 102b, and the current is caused to be detected by the receiver 150, thereby transmitting a fire signal of the transmitter 130 to the receiver 150. In the case of a fire signal from the wired sensor 110, the wired sensor 110 short-circuits the C line 102b and the L line 102c connected to the wired sensor, so that the wired sensor 110 is connected. The fire signal is transmitted to the receiver 150. In the case of a fire signal from the wireless sensor 120, after the repeater 140 receives the fire signal from the wireless sensor 120, the C line 102b and the L line 102c connected to the repeater 140 are short-circuited. By causing the current to flow from the L line 102c toward the C line 102b and causing the receiver 150 to detect the current, the fire signal of the wired sensor 110 is transmitted to the receiver 150.

  Further, when a failure occurs in the terminal device, a failure signal for notifying the failure is transmitted from the terminal device. As a method for transmitting a failure signal of such a terminal device to the receiver 150, for example, the terminal device electrically disconnects the connected signal line 102 from the terminator and the receiver has no terminator. By recognizing, the failure signal of the terminal device is transmitted to the receiver 150. Specifically, in the case of a failure signal of the wireless sensor 120, after the repeater 140 receives the failure signal from the wireless sensor 120, the C line 102b and the L line connected to the repeater 140 are connected. By disconnecting a part of 102c with a relay or the like, the terminator connected to the C line 102b and the L line 102c is electrically disconnected, and a failure signal of the wireless sensor 120 is transmitted to the receiver 150 (for example, , See Patent Document 1).

Japanese Patent Laid-Open No. 08-185590

  However, in such a conventional prevention system, there is room for improvement with respect to transmitting the fire signal of the terminal device to the receiver 150. For example, when the repeater 140 receives a failure signal from the wireless sensor 120, the wired sensor 110 disposed downstream of the repeater 140 (position away from the receiver 150) fires. , The wired sensor 110 short-circuits the C line 102b and the L line 102c connected to the wired sensor 110, but the C line 102b and the L line connected to the repeater 140. Since 102 c is in a disconnected state, the failure signal of the wireless sensor 120 is continuously transmitted to the receiver 150. Therefore, in this case, since the fire signal of the wired sensor 110 is not transmitted to the receiver 150, this may be a factor that hinders early detection of fire.

  The present invention has been made in view of the above, and is capable of transmitting a fire signal of a terminal device to a receiver even when a failure signal of the terminal device is transmitted to the receiver. The purpose is to provide a vessel.

In order to solve the above-described problems and achieve the object, the repeater according to claim 1 is provided by a first wireless terminal and / or a second wireless terminal having a different type from the first wireless terminal. A repeater for relaying a received signal to a receiver, wherein the state of the three signal lines connecting the repeater and the receiver to each other is set to a normal state, and a first transfer relating to the first wireless terminal . state, the first first transfer paper states relating to the second wireless terminal that can not coexist from the first transfer paper state for the wireless terminal, or the first transfer paper for the first wireless terminal state and the second By switching to one of the second transmission states that cannot coexist with the first transmission state regarding the wireless terminal, the signal received from the first wireless terminal and / or the second wireless terminal is switched. From the received signal. During the signal to the reception from the first wireless terminal and / or the second wireless terminal, a signal output means for constantly output to the receiver, and control means for controlling said signal output means And when the fire signal notifying the fire is received from the first wireless terminal, the control means transfers the received fire signal to the receiver, and the signal output means sends the first signal output means to the first radio terminal . performed by the first transfer paper state for the wireless terminal, when receiving the fire signal from the second wireless terminal, the Utsuriho for the receiver of the received fire signal, the said signal output means second done by the first transfer paper state for the wireless terminal, the first wireless terminal and / or said second of said first fault signal for informing the fault of the wireless terminal of the wireless terminal and / or the the second radio When receiving from the end, the Utsuriho for the receiver of the received failure signal, said signal output means performs by the second transfer paper states, the repeater with respect to the receiver of the fault signal In the case of performing the transfer, when the fire signal is received from the first wireless terminal and / or the second wireless terminal , the signal output means is changed from the second transfer state to the normal state. After the recovery, the received fire signal is transferred to the receiver.
Further, the repeater according to claim 2 is the repeater according to claim 1, wherein the control means is configured to transmit the fire signal when the repeater transmits the fault signal to the receiver. When a signal is received from the first wireless terminal and / or the second wireless terminal, the signal output means is restored from the second transfer state to the normal state, and then a fire recovery is notified. Until the fire recovery signal is received from the first wireless terminal and / or the second wireless terminal, only the notification of the received fire signal to the receiver is performed.

Further, the repeater according to claim 3 is the repeater according to claim 1, wherein the control means performs the transfer of the fire signal to the receiver when the repeater performs the transmission of the fire signal. A fire recovery signal for notifying the fire recovery is received from the first wireless terminal or the second wireless terminal that has transmitted the fire signal , and the failure signal is transmitted to the first wireless terminal and / or the second wireless terminal. When receiving from a wireless terminal, after the signal output means is restored to the normal state from the first transmission state relating to the first wireless terminal or the first transmission state relating to the second wireless terminal . Then, the received failure signal is transferred to the receiver.

Further, the repeater according to claim 4, Te repeater smell as claimed in any one of claims 1 to 3, before Symbol normal state, all of the three signal lines be capable conducting state The first transition state regarding the first wireless terminal is a state where two of the three signal lines are short-circuited, and the first transition state regarding the second wireless terminal is the three transition states. All of the signal lines are in a short-circuited state, and the second transfer state is a state in which one of the three signal lines is disconnected.

Further, the repeater according to claim 5 is the identification according to any one of claims 1 to 4 , wherein each of the first wireless terminal and the second wireless terminal is uniquely identified. When the fire signal containing information is received from the first wireless terminal and / or the second wireless terminal, identification information acquisition means for acquiring the identification information from the fire signal, the identification information, A transmission method for transferring the fire signal to the receiver, wherein a state of the three signal lines is changed to a first transmission state relating to the first wireless terminal or a first relating to the second wireless terminal. And a transfer method information storage means for storing the transfer method information for specifying a transfer method for switching to the transfer state, and the control means at the identification information acquisition means Based on the acquired identification information, the transfer is performed. Acquiring the Utsuriho method information from the process information storing means, based on the acquired the transfer paper method information, performs Utsuriho for the receiver of the fire signal.

According to the repeater according to claim 1, the control means is a signal output means when the repeater is transferring a fault signal to the receiver and receives a fire signal from the wireless terminal. Since the second fire alarm is restored to the normal condition, the received fire signal is transferred to the receiver, so it is not affected by the failure of the wireless terminal. It is possible to transfer information and to increase the certainty of transmission to the fire signal receiver.

According to the repeater of claim 3 , the control means receives the fire recovery signal from the wireless terminal when the repeater is transferring the fire signal to the receiver, and When the failure signal is received from the wireless terminal, the signal output means is restored from the first transmission state relating to the first wireless terminal or the first transmission state relating to the second wireless terminal to the normal state, Since the failure signal is transferred to the receiver of the received failure signal, even if the failure signal has been received and the fire signal has been stopped, The failure signal can be transferred to the receiver, and the reliability of the failure signal to the receiver can be improved.

According to the repeater of claim 4 , the normal state is a state in which all three signal lines can be conducted, and the first transfer state for the first wireless terminal is the three signal lines. Two of the signal lines are in a short-circuited state, the first transmission state for the second wireless terminal is a state in which all three signal lines are short-circuited, and the second transmission state is the state of the three signal lines. Since one of the signal lines is in a disconnected state, even if a failure occurs in the wireless terminal and the wireless terminal issues a report, the signal output means disconnects the signal line from the state in which the signal line is disconnected. After the line is restored to the state before disconnection, the received fire signal can be output to the receiver by short-circuiting the signal line, and the reliability of the transfer of the received fire signal to the receiver Can be increased. Furthermore, even when the wireless terminal has stopped reporting, even if a failure has occurred in the wireless terminal, the signal output means restores the signal line from the shorted state to the state before shorting the signal line. Later, by disconnecting the signal line, the received fault signal can be output to the receiver, and the reliability of the transfer of the received fault signal to the receiver can be improved.

Further, according to the repeater described in claim 5 , the repeater acquires transfer method information from the transfer method information storage unit based on the identification information acquired by the identification information acquisition unit, and acquires the transfer method information. Since the fire signal is transferred to the receiver based on the transfer method information, the fire signal can be transferred according to the wireless terminal, and the position of the fire can be easily identified.

It is the schematic which shows the structure of a fire alerting | reporting system. It is a schematic diagram which shows the connection state of the signal wire | line of a receiver and a wired relay. It is a block diagram which shows notionally the electrical structure of a transmitter. It is a block diagram which shows notionally the electrical structure of a radio | wireless repeater. It is a block diagram which shows notionally the electrical structure of a wired relay. It is the schematic which shows the connection condition of each terminal of a signal output part. It is the table | surface which illustrated the content of the information stored in a transfer method table. It is the flowchart which showed the flow of the relay process which a sensor, a transmitter, a wireless relay device, and a wired relay device perform. It is a flowchart of a relay process. It is the schematic of the conventional disaster prevention system.

  Embodiments of a repeater according to the present invention will be described below in detail with reference to the accompanying drawings. First, the overall configuration of the fire alarm system configured with this repeater will be described. Next, the configuration of this repeater will be described, and the flow of relay processing executed by each device constituting the fire alarm system will be described. A description will be given, the relay process of this repeater will be described, and finally, a modification to the present embodiment will be described. However, the present invention is not limited by this embodiment. In addition, although the installation target and application target of the repeater according to the embodiment are arbitrary, in the following, it is a repeater installed indoors in an office building, and a wireless repeater that relays by a radio signal, A case where the present invention is applied to a wired repeater among wired repeaters that perform relaying using a wired signal will be described as an example.

Embodiment
(Configuration-Fire alarm system)
FIG. 1 is a schematic diagram showing the configuration of a fire alarm system. As shown in FIG. 1, the fire alarm system 1 includes a sensor 10, a transmitter 20, a wireless repeater 30, a wired repeater 40, and a receiver 50. The sensor 10, the transmitter 20, the wireless repeater 30, and the wired repeater 40 are arranged on the ceiling or wall on each floor of the building. Of these, one or a plurality of detectors 10 and transmitters 20 are arranged on each floor so as to satisfy legal installation intervals. The wireless repeater 30 is arranged between the sensor 10 and the transmitter 20 to be relayed and the wired repeater 40 on each floor. One wired repeater 40 is arranged on each floor. One receiver 50 is arranged in a building, for example, in a manager room of the building. The wired repeater 40 and the receiver 50 are connected by a signal line 2 and a power line 3.

  Here, the sensor 10 or the transmitter 20 is based on a fire signal for notifying a fire, a fire recovery signal for notifying a recovery from a fire, a failure signal for notifying the failure of the sensor 10, or a failure of the sensor 10. This is a wireless terminal that transmits a failure recovery signal for informing the recovery of the network. The wireless repeater 30 receives a fire signal, a fire recovery signal, a failure signal, or a failure recovery signal from the sensor 10 or the transmitter 20, and receives the received fire signal, fire recovery signal, failure signal, or failure recovery signal. Is relayed to the wired repeater 40. The wired repeater 40 receives a fire signal, a fire restoration signal, a failure signal, or a failure restoration signal transmitted from the sensor 10, the transmitter 20, and / or the wireless repeater 30, and receives the received fire signal or This is a repeater that outputs a failure signal to the receiver 50 via the signal line 2. The receiver 50 executes various processes such as alarm display and alarm sound output based on the information input from the wired repeater 40 via the signal line 2, and the wired repeater via the power line 3. The power supply to 40 is performed.

  Next, a connection form of each terminal device via the signal line 2 will be described. In the present embodiment, the fire alarm system 1 is configured as a so-called P-type first-class or P-type second-class fire alarm system. FIG. 2 is a schematic diagram showing a connection state of the signal line 2. As shown in FIG. 2, the signal line 2 includes an A line 2a, a C line 2b, and an L line 2c. The A line 2a, the C line 2b, and the L line 2c are wired. The repeater 40 and the receiver 50 are connected to each other. The A line 2a is connected to a wired repeater 40 provided on each floor of the building (not shown). The A line 2 a and the C line 2 b (hereinafter referred to as “AC line” 2 d) are lines for transmitting the fire signal of the transmitter 20 received by the wired repeater 40 toward the receiver 50. The L line 2c and the C line 2b (hereinafter referred to as “LC line” 2e) are lines for transmitting the fire signal or the failure signal of the sensor 10 received by the wired repeater 40. It is also a line for transmitting 20 fire signals or fault signals. A terminal resistor (not shown) is provided at the terminal of the L-C line 2e of each system (here, each floor of the building).

(Configuration-Fire alarm system-Detector)
Next, the configuration of the sensor 10 will be described. The sensor 10 includes a sensor unit, a wireless transmission unit, and a power supply unit (not shown). The sensor unit is detection means for detecting temperature, smoke density, and the like. The wireless transmission unit is a wireless transmission unit that transmits a fire signal, a fire recovery signal, a failure signal, or a failure recovery signal. For example, when the fire determination unit (not shown) determines that the detection result is higher than the threshold based on the detection result of the temperature or smoke density in the sensor unit, the wireless transmission unit Send a signal. In addition, after the fire signal is transmitted, if the fire determination unit (not shown) determines that the detection result is lower than the threshold value, the wireless transmission unit transmits a fire recovery signal. Further, the wireless transmission unit outputs the output based on the result of the output voltage of the power supply unit of the sensor 10 measured by a failure determination unit (not shown) using a known voltage measuring unit (not shown). When it is determined that the voltage result is lower than the threshold value, the wireless transmission unit transmits a failure signal. When the failure determination unit (not shown) determines that the output voltage result is higher than the threshold value after the failure signal is transmitted, the wireless transmission unit transmits a failure recovery signal (transmitter 20 described later). The same applies to the wireless transmission unit 23). In addition, the wireless transmission unit is, for example, information stored in advance in known storage means (not shown) provided in the sensor 10, and identifies identification information for uniquely identifying the sensor 10 as a fire signal or a failure signal. (The same applies to the wireless transmission unit 23 of the transmitter 20 described later). Here, as the identification information stored in the known storage means, for example, the address number or serial number of the sensor 10 can be used (the same applies to the identification information of the transmitter 20 described later). The power supply unit is a power supply unit that supplies power to each unit of the sensor 10, and includes, for example, a known dry battery or rechargeable battery (a power supply unit 25 of the transmitter 20 and a wireless repeater 30 described later). The same applies to the power supply unit 34 of FIG.

(Configuration-Fire alarm system-Transmitter)
Next, the configuration of the transmitter 20 will be described. FIG. 3 is a block diagram showing the electrical configuration of the transmitter 20. As shown in FIG. 3, the transmitter 20 includes a push button unit 21, a test switch unit 22, a wireless transmission unit 23, a display unit 24, a power supply unit 25, a control unit 26, and a storage unit 27. . Since the configuration of the power supply unit 25 is the same as that of the power supply unit in the sensor 10 described above, the description thereof will be omitted except for specially described parts.

  The push button unit 21 is an operation unit that receives the presence or absence of transmission of a fire signal by the user. The test switch unit 22 is a test operation unit that accepts whether or not a test signal for transmitting a function test of the transmitter 20 by the user is transmitted.

  The wireless transmission unit 23 is a wireless transmission unit that transmits a fire signal, a fire recovery signal, a failure signal, a failure recovery signal, or a test signal. For example, the wireless transmission unit 23 transmits a fire signal when the push button unit 21 is pushed down by the user. A fire recovery signal is transmitted when the state before the push button unit 21 is pushed down by the user is restored.

  The display unit 24 is a display unit for displaying information related to the transmitter 20, and includes, for example, a known LED lamp, fluorescent lamp, and the like.

  The control unit 26 is a control unit that controls each unit of the transmitter 20. Specifically, the control unit 26 is a CPU, various programs that are interpreted and executed on the CPU (a basic control program such as an OS, or started on the OS). And an internal memory such as a RAM for storing the program and various data (including a control unit 35 of the wireless repeater 30 and a wired relay described later) The same applies to the control unit 46 of the container 40).

  The storage unit 27 is a storage unit that stores identification information for uniquely identifying the transmitter 20. The storage unit 27 is configured by using a rewritable recording medium, and for example, a non-volatile recording medium such as a flash memory can be used (a storage unit 36 of a wireless repeater 30 and a wired repeater 40 described later). The same applies to the storage unit 47).

(Configuration-Fire alarm system-Wireless repeater)
Next, the configuration of the wireless repeater 30 will be described. FIG. 4 is a block diagram showing an electrical configuration of the wireless repeater 30. As shown in FIG. 4, the wireless repeater 30 includes an operation unit 31, a display unit 32, a wireless communication unit 33, a power supply unit 34, a control unit 35, and a storage unit 36. The configuration of the power supply unit 34 is the same as that of the power supply unit in the sensor 10 described above, and the configuration of the control unit 35 is the same as that of the control unit 26 of the transmitter 20 described above. Is omitted.

  The operation unit 31 is an operation unit that receives an operation input to the wireless repeater 30, and is configured using a known operation unit such as a switch or a touch panel (for an operation unit 41 of the wired repeater 40 described later). The same).

  The display unit 32 is a display unit for displaying information related to the wireless repeater 40, and includes, for example, a known 7-segment display or a liquid crystal display (a display unit 42 of the wired repeater 40 described later). The same applies to.

  The wireless communication unit 33 is a wireless communication unit that receives and transmits a fire signal, a fire recovery signal, a failure signal, or a failure recovery signal. The wireless communication unit 33 includes, for example, a wireless signal receiving circuit and a transmitting circuit (both not shown), and a fire signal, a fire recovery signal, a failure transmitted from the sensor 10 or the transmitter 20 through the receiving circuit. A signal or a failure recovery signal is received, and a fire signal, a fire recovery signal, a failure signal, or a failure recovery signal is transmitted to the wired repeater 40 via the transmission circuit. Note that the method of receiving the fire signal, fire recovery signal, failure signal, or failure recovery signal of the wireless communication unit 33 is arbitrary. For example, in order to reduce power consumption of the power supply unit 34, the wireless communication unit 33 may You may receive a fire recovery signal, a failure signal, or a failure recovery signal intermittently.

  The storage unit 36 is a storage unit that stores programs and various data necessary for control by the control unit 35 (the same applies to the storage unit 47 of the wired repeater 40 described later).

(Configuration-Fire alarm system-Wired repeater)
Next, the configuration of the wired repeater 40 will be described. FIG. 5 is a block diagram conceptually showing the electrical configuration of the wired repeater 40. As shown in FIG. 5, the wired repeater 40 includes an operation unit 41, a display unit 42, a wireless reception unit 43, a signal output unit 44, a power supply circuit unit 45, a control unit 46, and a storage unit 47. In addition, since the structure of the operation part 41 and the display part 42 is the same as that of the operation part 31 and the display part 32 in the above-mentioned wireless repeater 30, description is abbreviate | omitted except the part which mentions specially.

  The wireless receiver 43 is a wireless receiver that receives a fire signal, a fire recovery signal, a failure signal, or a failure recovery signal. The wireless reception unit 43 includes a fire signal, a fire recovery signal, a failure signal, or a failure recovery signal reception circuit (not shown), and the sensor 10, the transmitter 20 and / or the wireless relay via the reception circuit. The fire signal, fire recovery signal, failure signal, or failure recovery signal transmitted from the container 30 is received.

  The signal output unit 44 is a signal output unit that outputs a fire signal or a failure signal received from the sensor 10, the transmitter 20 and / or the wireless repeater 30 to the receiver 50. The signal output unit 44 includes an AC output unit 44a and an LC output unit 44b. The AC output unit 44a is an AC output unit that outputs a fire signal received from the transmitter 20 and / or the wireless repeater 30 to the receiver 50 via the AC line 2d. The L-C output unit 44b outputs a fire signal or a failure signal received from the sensor 10 and / or the wireless repeater 30 to the receiver 50 via the L-C line 2e, and the transmitter 20 and / or Alternatively, it is an LC output means for outputting a fire signal or a failure signal received from the wireless repeater 30 to the receiver 50.

  FIG. 6 is a schematic diagram illustrating a connection state of each terminal of the signal output unit 44. As shown in FIG. 6, the signal output unit 44 includes an A line output terminal 2a1, an A line input terminal 2a2, a C line output terminal 2b1, a C line input terminal 2b2, an L line output terminal 2c1, and an L line input terminal 2c2. It is prepared for. These A-line output terminal 2a1, C-line output terminal 2b1, and L-line output terminal 2c1 are for outputting a fire signal or a failure signal to the receiver 50, and are on the side opposite to the receiver 50 side (wired type) The A line 2a, the C line 2b, and the L line 2c on the side opposite to the receiver 50 side with the repeater 40 interposed therebetween are respectively connected. The A line input terminal 2a2, the C line input terminal 2b2, and the L line input terminal 2c2 are for inputting a fire signal or a failure signal to the receiver 50. The A line 2a on the receiver 50 side, The C line 2b and the L line 2c are connected to each other.

  The L line 2c that connects the L line output terminal 2c1 and the L line input terminal 2c2 is provided with a relay 2f for switching the connection of the L line 2c. Between the L line 2c connecting the L line output terminal 2c1 and the L line input terminal 2c2, and the C line 2b connecting the C line output terminal 2b1 and the C line input terminal 2b2, the L line 2c and A relay 2g for switching the connection of the C line 2b is provided. This relay 2g is arranged closer to the receiver 50 than the relay 2f. Between the A line 2a connecting the A line output terminal 2a1 and the A line input terminal 2a2, and the L line 2c connecting the L line output terminal 2c1 and the L line input terminal 2c2, the A line 2a and A relay 2h for switching the connection of the C line 2b is provided.

  Here, as a method for the signal output unit 44 to output a fire signal or a failure signal to the receiver 50, for example, the signal output unit 44 can conduct the signal line 2 connected to the wired repeater 40. The fire signal or the failure signal of the sensor 10 or the transmitter 20 is transmitted to the receiver 50 by making it short-circuited, short-circuited, or disconnected. Specifically, when the signal output unit 44 performs a normal operation, the L-C output unit 44b connects the L line 2c with the relay 2f so that the L-C line 2e can be conducted. When the signal output unit 44 outputs a fire signal from the sensor 10 to the receiver 50, the L-C output unit 44b causes the L-C line 2e to be short-circuited. 2e is connected by the relay 2g. Further, when the signal output unit 44 outputs a fire signal of the transmitter 20 to the receiver 50, the AC output unit 44a is connected to the AC line so that the AC line 2d is short-circuited. 2d is connected by the relay 2h, and the LC output unit 44b connects the LC line 2e by a known relay 2g so that the LC line 2e is short-circuited. Further, when the signal output unit 44 outputs a failure signal of the sensor 10 or the transmitter 20 to the receiver 50, the L-C output unit 44b is configured so that the L-C line 2e is disconnected. The line 2c is disconnected by the relay 2f. Actually, since the fault signal is output before outputting the fire signal, it is necessary to output the fire signal after canceling the output of the fault signal. This point will be described later. In the following, “disconnection” means that either the A line 2a, the C line 2b, or the L line 2c is connected to the side close to the receiver 50 and the side far from the receiver 50 in the signal output unit 44 of the wired repeater 40. It means to be separated. As a result, the terminator is electrically disconnected from the receiver 50 and a fault signal is transmitted to the receiver 50. Further, “recovering” the disconnection means returning the A line 2a, the C line 2b, or the L line 2c separated to the side closer to the receiver 50 and the side far from the receiver 50 to the connection state before the disconnection. As a result, the terminator is electrically connected to the receiver 50 and a fault signal is transmitted to the receiver 50.

  The power supply circuit unit 45 supplies the power supplied from the receiver 50 via the power supply line 3 to each part of the wired repeater 40 (note that the power supply line from the power supply circuit part 45 to each part of the wired repeater 40 Is omitted).

The control unit 46 is a control unit that controls each unit of the wired repeater 40. The control unit 46 includes an identification information acquisition unit 46a in terms of functional concept. Identification information acquiring unit 46a, when wired repeater 40 that has received the fire signal or fault signal from the sensor 10 or transmitter 20, identification information acquisition means for acquiring identification information from the fire signal or fault signal is there. Details of processing executed by the control unit 46 will be described later.

  The storage unit 47 includes a transfer method table 47 a that the control unit 46 refers to when the signal output unit 44 transmits a fire signal or a failure signal to the receiver 50. FIG. 7 is a table illustrating the contents of information stored in the transfer method table 47a. As illustrated in FIG. 7, information corresponding to the table items “wireless terminal ID”, “type”, and “transfer method” is stored in association with each other in the transfer method table 47a. The information stored corresponding to the item “wireless terminal ID” is identification information for uniquely identifying the sensor 10 or the transmitter 20, and for example, the address number of the sensor 10 or the transmitter 20 (“0101 in FIG. 7). ”,“ 0102 ”,“ 0103 ”, etc.). The information stored corresponding to the item “type” is type information for specifying the type of device, and stores, for example, “sensor” and “transmitter”. The information stored corresponding to the item “transfer method” is the transfer method information for specifying the transfer method of the fire signal of the sensor 10 or the transmitter 20, for example, “LC line short circuit”. , “LC line and AC line short circuit” and the like are stored.

(Configuration-Fire alarm system-Receiver)
Next, the configuration of the receiver 50 will be described. As this receiver 50, for example, a known disaster prevention receiver can be used.

(Relay processing executed by each device constituting the fire alarm system)
Next, relay processing executed by each device constituting the fire alarm system 1 will be described. As shown in FIG. 1, the case where the sensor 10, the transmitter 20, the wireless repeater 30, and the wired repeater 40 are installed on the third floor of the building will be described as an example. FIG. 8 is a flowchart showing a flow of relay processing executed by the sensor 10, the transmitter 20, the wireless repeater 30, and the wired repeater 40 (note that the operation of the wireless repeater 30 is illustrated). (Omitted). In the following description, “step” is abbreviated as “S”. The step of the wired repeater 40 is abbreviated as “SA”, the step of the sensor 10 as “SB”, and the step of the transmitter 20 as “SC”. In addition, an event that occurs during the operation of the wired repeater 40 is recorded in the storage unit 47 by the control unit 46.

  As shown in FIG. 8, when a failure occurs in the transmitter 20 and the wireless transmitter 23 of the transmitter 20 transmits a failure signal (SC1), the wireless receiver 43 of the wired repeater 40 A failure signal is received from the transmitter 20 and / or the wireless repeater 30 (SA1), and the signal output unit 44 transmits the received failure signal to the receiver 50 (SA2). The wireless transmission unit 23 of the transmitter 20 continuously or intermittently transmits a failure signal until the failure of the transmitter 20 is restored (hereinafter, the same applies to the SA5 fire signal described later).

  Next, when a fire is detected by the sensor unit of the sensor 10 and the wireless transmission unit of the sensor 10 transmits a fire signal (SB1), the wireless reception unit 43 of the wired repeater 40 is: A fire signal is received from the sensor 10 and / or the wireless repeater 30 (SA3). Next, when the signal output unit 44 of the wired repeater 40 is restored from the state where the SA2 failure signal is transferred to the state before the failure signal is transferred, that is, the failure signal is transferred. (SA4), the signal output unit 44 of the wired repeater 40 transfers the fire signal received at SA3 to the receiver 50 (SA5).

  Subsequently, when a fire is no longer detected by the sensor unit of the sensor 10 and the wireless transmission unit of the sensor 10 transmits a fire recovery signal (SB2), the wireless reception unit 43 of the wired repeater 40 is transmitted. Receives a fire recovery signal from the sensor 10 and / or the wireless repeater 30 (SA6). As a result, the signal output unit 44 of the wired repeater 40 restores the state before the SA5 fire signal is transferred to the state before the fire signal is transferred, that is, the fire signal is transferred. Stop (SA7). Here, after the processing of SA1, the wireless reception unit 43 of the wired repeater 40 continuously receives the failure signal from the transmitter 20. Therefore, after the process of SA7, the signal output unit 44 of the wired repeater 40 transmits a failure signal to the receiver 50 (SA8).

  Next, when the failure of the transmitter 20 is recovered and the wireless transmitter 23 of the transmitter 20 transmits a failure recovery signal (SC2), the wireless receiver 43 of the wired repeater 40 is connected to the transmitter 20 and The failure recovery signal is received from the wireless repeater 30 (SA9), and the signal output unit 44 stops the SA8 failure signal transfer (SA10).

(Relay processing)
Next, the relay process executed by the wired repeater 40 will be described in relation to the flow of the relay process of SA1 to SA10 shown in FIG. FIG. 9 is a flowchart of relay processing. The execution timing of this relay process is arbitrary, and is executed when, for example, an operation input for executing the relay process is made via the operation unit 41 of the wired repeater 40. Further, it is assumed that the signal line 2 connecting the wired repeater 40 and the receiver 50 is in a conductive state. The state in which the signal line 2 can be conducted corresponds to the normal state in the claims.

  As shown in FIG. 9, first, the control unit 46 determines whether or not the wireless reception unit 43 has received a failure signal from the sensor 10 or the transmitter 20 (SD1). As a result, when it is determined that the wireless reception unit 43 has received a failure signal from the transmitter 20 (SA1) (SD1, Yes), the control unit 46 causes the signal output unit 44 to disconnect the signal line 2 (SA2) ( SD2). Specifically, the control unit 46 disconnects the LC line 2e by the LC output unit 44b. The state in which the signal line 2 is disconnected corresponds to the second transfer state in the claims. Note that the control unit 46 may display on the display unit 42 that the L-C line 2e is in a disconnected state. Thereby, it can be notified to the user that the signal line 2 is in a disconnected state (the same applies to the short-circuit state of SD5 described later).

  Next, the control unit 46 determines whether the wireless reception unit 43 has received a fire signal from the sensor 10 or the transmitter 20 (SD3). As a result, when it is determined that the wireless reception unit 43 has received a fire signal from the sensor 10 (SA3) (SD3, Yes), the control unit 46 outputs a signal from a state in which the signal line 2 is disconnected by the signal output unit 44. The state before the line 2 is disconnected is restored (SA4) (SD4). Then, after the identification information acquisition unit 46a acquires the identification information of the sensor 10 from the fire signal received by the wireless reception unit 43, the control unit 46 refers to the transfer method table 47a, and the identification information acquisition unit The signal output unit 44 short-circuits the signal line 2 in accordance with the identification information acquired at 46a (SA5) (SD5). Specifically, after the controller 46 restores the L-C line 2e from the disconnected state to the conductive state by the L-C output part 44b, the L-C output part 44b causes the L-C line 2e to be connected. Short circuit. Thus, the fire signal received by the wireless receiver 43 can be transferred to the receiver 50 without being affected by the failure of the sensor 10 or the transmitter 20, and the fire signal can be transferred to the receiver 50. The certainty of the information can be improved. Moreover, since the fire signal is transferred to the receiver 50 based on the transfer method information acquired from the transfer method table 47a, the fire signal can be transferred according to the sensor 10 or the transmitter 20. it can. The state in which the signal line 2 is short-circuited corresponds to the first transfer state in the claims.

  Subsequently, the control unit 46 determines whether or not the wireless reception unit 43 has received a failure recovery signal from the sensor 10 or the transmitter 20 (SD6). As a result, when it is determined that the wireless reception unit 43 has received a failure recovery signal from the sensor 10 or the transmitter 20 (SD6, Yes), the control unit 46 returns to immediately before SD1.

  On the other hand, when it is not determined that the wireless reception unit 43 has received the failure recovery signal from the sensor 10 or the transmitter 20 (SD6, No), the control unit 46 determines that the wireless reception unit 43 is from the sensor 10 or the transmitter 20. It is determined whether or not a fire recovery signal has been received (SD7).

  As a result, when it is not determined that the wireless reception unit 43 has received the fire recovery signal from the sensor 10 (SD7, No), the control unit 46 returns to immediately before SD6.

  On the other hand, when it is determined that the wireless reception unit 43 has received the fire recovery signal from the sensor 10 (SA6) (SD7, Yes), the control unit 46 outputs a signal from a state in which the signal line 2 is short-circuited by the signal output unit 44. The state before the short circuit of the line 2 is restored (SA7) (SD8). Here, since the wireless receiver 43 continuously receives the failure signal from the transmitter 20 after the processing of SD2, the controller 46 causes the signal output unit 44 to disconnect the signal line 2 (SA8) (SD9 ). Specifically, the control unit 46 restores the L-C line 2e from the short-circuited state to the conductive state by the L-C output unit 44b, and then disconnects the L-C line 2e by the L-C output unit 44b. . As a result, even when the transmission of the fire signal to the receiver 50 is stopped, the failure signal can be transferred to the receiver 50, so that the certainty of the transfer of the failure signal to the receiver 50 is improved. Can do.

  Subsequently, when it is not determined that the wireless reception unit 43 has received a fire signal from the sensor 10 or the transmitter 20 (SD3, No), or when the signal line 2 is disconnected in SD9, The controller 46 determines whether the wireless receiver 43 has received a failure recovery signal from the sensor 10 or the transmitter 20 (SD10). As a result, when it is not determined that the wireless reception unit 43 has received the failure recovery signal from the sensor 10 or the transmitter 20 (No in SD10), the control unit 46 returns to immediately before SD3.

  On the other hand, when it is determined that the wireless reception unit 43 has received the failure recovery signal from the transmitter 20 (SA9) (SD10, Yes), the control unit 46 is disconnected from the state where the signal output unit 44 has disconnected the signal line 2. The state before the operation is restored (SA10) (SD11), and the process returns to immediately before SD1. Specifically, the control unit 46 restores the L-C line 2e from the disconnected state to a conductive state by the L-C output unit 44b.

  On the other hand, when it is not determined that the wireless reception unit 43 has received a failure signal from the sensor 10 or the transmitter 20 (SD1, No), the control unit 46 determines that the wireless reception unit 43 is from the sensor 10 or the transmitter 20. It is determined whether a fire signal has been received (SD12). As a result, when it is not determined that the wireless reception unit 43 has received a fire signal from the sensor 10 or the transmitter 20 (No in SD12), the control unit 46 returns to immediately before SD1.

  On the other hand, when it is determined that the wireless reception unit 43 has received a fire signal from the sensor 10 or the transmitter 20 (SD12, Yes), the control unit 46 causes the signal output unit 44 to short-circuit the signal line 2 (SD13).

  Next, the control unit 46 monitors whether the wireless reception unit 43 has received a fire recovery signal from the sensor 10 or the transmitter 20 (SD14). Here, when the wireless receiver 43 receives a fire recovery signal from the sensor 10 or the transmitter 20 (SD14, Yes), the controller 46 before the signal output unit 44 short-circuits the signal line 2 from the short-circuited state. The state is restored (SD15), and the process returns to immediately before SD1.

(effect)
As described above, according to the embodiment, the control unit 46 receives the fire signal from the sensor 10 or the transmitter 20 when the wired repeater 40 transfers the fault signal to the receiver 50. In this case, after the signal output unit 44 is restored from the second transfer state to the normal state, the received fire signal is transferred to the receiver 50, so that the failure of the sensor 10 or the transmitter 20 is affected. Accordingly, the fire signal received by the wireless reception unit 43 can be transferred to the receiver 50, and the reliability of the fire signal to the receiver 50 can be improved.

  In addition, the control unit 46 receives a fire recovery signal from the sensor 10 or the transmitter 20 when the wired repeater 40 is transferring a fire signal to the receiver 50, and receives a fault signal. Is received from the sensor 10 or the transmitter 20, the signal output unit 44 is restored from the first transfer state to the normal state, and then the received fault signal is transferred to the receiver 50. Therefore, even when the fire signal is being transferred and the failure signal is received, and the fire signal is stopped, the failure signal is transferred to the receiver 50. Therefore, it is possible to improve the certainty of the transfer of the fault signal to the receiver 50.

  Further, the wired repeater 40 switches the connection of the signal line 2 that connects the wired repeater 40 and the receiver 50 to the normal state, the first transfer state, and the second transfer state. The signal output unit 44 for outputting the signal received from the sensor 10 or the transmitter 20 to the receiver 50 and the control unit 46 for controlling the signal output unit 44 are provided. The first transmission state is a state in which the signal line 2 is short-circuited, and the second transmission state is a state in which the signal line 2 is disconnected. Therefore, the sensor 10 or the transmitter 20 is faulty. Even if the sensor 10 or the transmitter 20 is informed, the signal output unit 44 restores the signal line 2 from the disconnected state to the state before the signal line 2 is disconnected. And then receiving the signal line 2 by short-circuiting it. And the fire signal can be output to the receiver 50, it is possible to enhance the reliability of Utsuriho respect to the receiver 50 of the received fire signal. Further, when the alarm of the sensor 10 or the transmitter 20 is stopped, even if a fault occurs in the sensor 10 or the transmitter 20, the signal output unit 44 causes the signal line 2 to be short-circuited. After the signal line 2 is restored to the state before the short circuit, the signal line 2 is disconnected, so that the received fault signal can be output to the receiver 50, and the receiver of the received fault signal is received. The certainty of the transfer to 50 can be improved.

  The wired repeater 40 acquires the transfer method information from the transfer method table 47a based on the identification information acquired by the identification information acquisition unit 46a, and fires based on the acquired transfer method information. Since the signal is transferred to the receiver 50, the fire signal can be transferred according to the sensor 10 or the transmitter 20, and the position of the fire can be easily identified.

[Modifications to Embodiment]
Although the embodiments of the present invention have been described above, the specific configuration and means of the present invention can be arbitrarily modified and improved within the scope of the technical idea of each invention described in the claims. Can do. Hereinafter, such a modification will be described.

(About problems to be solved and effects of the invention)
First, the problems to be solved by the invention and the effects of the invention are not limited to the above-described contents, and the present invention solves the problems not described above or has the effects not described above. There are also cases where only some of the described problems are solved or only some of the described effects are achieved.

(About distribution and integration)
Each electrical component of the fire alarm system 1 described above is functionally conceptual and does not necessarily need to be physically configured as illustrated. That is, the specific form of distribution or integration of each part is not limited to the one shown in the figure, and all or a part thereof is functionally or physically distributed or integrated in arbitrary units according to various loads or usage conditions. Can be configured.

(About sensor)
In the above-described embodiment, the wireless transmission unit of the sensor 10 has been described as transmitting a fire signal, a fire recovery signal, a failure signal, or a failure recovery signal, but is not limited thereto. For example, the wireless transmission unit may periodically transmit the identification information of the sensor 10 in order to monitor the operation status of the sensor (the same applies to the wireless transmission unit 23 of the transmitter 20). ). In this case, the control unit 46 may cause the signal output unit 44 to disconnect the signal line when it is determined that the wireless reception unit 43 of the wired repeater 40 has not received the identification information periodically.

  Further, when the wireless transmission unit of the sensor 10 transmits a failure signal, the output voltage of the power supply unit of the sensor 10 measured by a failure determination unit (not shown) using a known voltage measurement unit (not shown). Although it has been described that the result of the output voltage is determined to be lower than the threshold based on the result, the present invention is not limited to this. For example, the case where the wireless transmission unit of the sensor 10 transmits a failure signal means that a device failure of the sensor 10 such as a failure of the detection unit of the sensor 10 occurs, or a failure determination unit (not shown) It may be a case where an abnormality of the sensor unit is determined based on a signal output from the unit (the same applies to the wireless transmission unit 23 of the transmitter 20). The same applies to the determination of recovery. When the wireless transmission unit of the sensor 10 transmits a recovery signal, the recovery of the sensor unit is performed based on the signal output from the sensor unit by a failure determination unit (not shown). (The same applies to the wireless transmission unit 23 of the transmitter 20).

(About wired repeaters)
In the above-described embodiment, the signal output unit 44 has been described as including the AC output unit 44a and the LC output unit 44b. However, for example, a radio such as the first floor of the building in FIG. In the case of the fire alarm system 1 in which the terminal is only the sensor 10, the A line 2a is not required among the signal lines 2 connecting the wired repeater 40 and the receiver 50. Therefore, in this case, the signal output unit 44 may include only the L-C output unit 44b.

(Relay processing executed by each device constituting the fire alarm system)
In the above-described embodiment, when a failure occurs in the transmitter 20, a fire is detected by the sensor unit of the sensor 10 after the wireless transmission unit 23 of the transmitter 20 transmits a failure signal. Although the relay process when the wireless transmission unit of the sensor 10 transmits a fire signal has been described, the present invention is not limited to this. For example, when a failure occurs in the sensor 10 and the wireless transmission unit of the sensor 10 transmits a failure signal, the push button unit 21 of the transmitter 20 is pressed down, so that the wireless of the transmitter 20 Even if it is a relay process about the case where the transmission part 23 transmitted the fire signal, it is handled similarly to embodiment.

1 Fire alarm system 2, 102 Signal line 2a, 102a A line 2a1 A line output terminal 2a2 A line input terminal 2b, 102b C line 2b1 C line output terminal 2b2 C line input terminal 2c, 102c L line 2c1 L line output terminal 2c2 L-line input terminal 2d A-C line 2e L-C line 2f Relay 2g Relay 2h Relay 3 Power line 10 Sensor 20, 130 Transmitter 21 Push button part 22 Test switch part 23 Wireless transmission part 24, 32, 42 Display part 25, 34 Power supply unit 26, 35, 46 Control unit 27, 36, 47 Storage unit 30 Wireless repeater 31, 41 Operation unit 33 Wireless communication unit 40 Wired repeater 43 Wireless reception unit 44 Signal output unit 44a A-C Output unit 44b LC output unit 45 Power supply circuit unit 46a Identification information acquisition unit 47a Transfer method table 50, 150 Reception 101 Disaster Prevention System 110 wired detector 120 wireless sensors 140 relay

Claims (5)

A relay that relays a signal received from a first wireless terminal and / or a second wireless terminal of a type different from the first wireless terminal to a receiver;
The states of the three signal lines connecting the repeater and the receiver to each other are set to a normal state, a first transmission state relating to the first wireless terminal, a first transmission state relating to the first wireless terminal, and The first transition state related to the second wireless terminal that cannot coexist, or the first transition state related to the first wireless terminal and the second transition state that cannot coexist with the first transition state related to the second wireless terminal By switching to one of the reporting states, the signal received from the first wireless terminal and / or the second wireless terminal is switched, and then a signal of a type different from the received signal is Signal output means for constantly outputting to the receiver until reception from one wireless terminal and / or the second wireless terminal;
Control means for controlling the signal output means ,
The control means includes
When a fire signal for notifying a fire is received from the first wireless terminal, the received fire signal is transferred to the receiver, and the signal output means is set to a first transfer state relating to the first wireless terminal. Done by
When the fire signal is received from the second wireless terminal, the signal output means is set to the first transition state related to the second wireless terminal, in order to transfer the received fire signal to the receiver. Done by
When it received from the first wireless terminal and / or the second of the fault signal for informing the fault of the wireless terminal first wireless terminal and / or the second wireless terminal, of the received failure signal Performing the transfer to the receiver by setting the signal output means to the second transfer state,
When the repeater is transferring the failure signal to the receiver, the signal output is output when the fire signal is received from the first wireless terminal and / or the second wireless terminal. After the means is restored from the second transfer state to the normal state, the received fire signal is transferred to the receiver.
Repeater. The control means includes
In the case where the repeater is performing Utsuriho for the receiver of the fault signal, upon receiving the fire signal from the first wireless terminal and / or the second wireless terminal, the signal After the output unit is restored from the second transfer state to the normal state, the reception is continued until a fire restoration signal for notifying the fire restoration is received from the first wireless terminal and / or the second wireless terminal. Only transfer the fire signal to the receiver,
The repeater according to claim 1. The control means includes
When the repeater is transferring the fire signal to the receiver, the fire recovery that notifies the fire recovery from the first wireless terminal or the second wireless terminal that transmitted the fire signal When the signal is received and the failure signal is received from the first radio terminal and / or the second radio terminal, the signal output means is a first message relating to the first radio terminal. After the state or the first transmission state related to the second wireless terminal is restored to the normal state, the received failure signal is transferred to the receiver.
The repeater according to claim 1 . The normal state is a state where all of the three signal lines can be conducted,
The first transfer state related to the first wireless terminal is a state where two of the three signal lines are short-circuited,
The first transfer state regarding the second wireless terminal is a state where all of the three signal lines are short-circuited,
The second transfer state is a state where one of the three signal lines is disconnected.
The repeater as described in any one of Claim 1 to 3. When the fire signal including identification information uniquely identifying each of the first wireless terminal and the second wireless terminal is received from the first wireless terminal and / or the second wireless terminal, Identification information acquisition means for acquiring the identification information from the fire signal;
A transmission method for transferring the identification information and the fire signal to the receiver, wherein a state of the three signal lines is changed to a first transmission state relating to the first wireless terminal or the second transmission state. A transmission method information storage means for storing the transmission method information for specifying a transmission method for switching to the first transmission state related to the wireless terminal,
The control means includes
Based on the identification information acquired by the identification information acquisition unit, the transfer method information is acquired from the transfer method information storage unit, and the fire signal is received based on the acquired transfer method information. To transfer information to the machine,
The repeater as described in any one of Claim 1 to 4.

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