WO2015159511A1 - Unité asservie pour système d'alarme incendie automatique et système d'alarme incendie automatique utilisant celle-ci - Google Patents

Unité asservie pour système d'alarme incendie automatique et système d'alarme incendie automatique utilisant celle-ci Download PDF

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Publication number
WO2015159511A1
WO2015159511A1 PCT/JP2015/001974 JP2015001974W WO2015159511A1 WO 2015159511 A1 WO2015159511 A1 WO 2015159511A1 JP 2015001974 W JP2015001974 W JP 2015001974W WO 2015159511 A1 WO2015159511 A1 WO 2015159511A1
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WO
WIPO (PCT)
Prior art keywords
current
fire
report
unit
level
Prior art date
Application number
PCT/JP2015/001974
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English (en)
Japanese (ja)
Inventor
一彦 五所野尾
高橋　秀晃
友昭 水田
享 伊藤
雅裕 長田
基弘 大井
冉 李
Original Assignee
パナソニックＩｐマネジメント株式会社
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
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Application filed by パナソニックＩｐマネジメント株式会社 filed Critical パナソニックＩｐマネジメント株式会社
Priority to EP15780542.5A priority Critical patent/EP3133569B1/fr
Publication of WO2015159511A1 publication Critical patent/WO2015159511A1/fr

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    • G—PHYSICS
    • G08—SIGNALLING
    • G08B—SIGNALLING OR CALLING SYSTEMS; ORDER TELEGRAPHS; ALARM SYSTEMS
    • G08B17/00—Fire alarms; Alarms responsive to explosion
    • G—PHYSICS
    • G08—SIGNALLING
    • G08B—SIGNALLING OR CALLING SYSTEMS; ORDER TELEGRAPHS; ALARM SYSTEMS
    • G08B25/00—Alarm systems in which the location of the alarm condition is signalled to a central station, e.g. fire or police telegraphic systems
    • G08B25/003—Address allocation methods and details
    • G—PHYSICS
    • G08—SIGNALLING
    • G08B—SIGNALLING OR CALLING SYSTEMS; ORDER TELEGRAPHS; ALARM SYSTEMS
    • G08B25/00—Alarm systems in which the location of the alarm condition is signalled to a central station, e.g. fire or police telegraphic systems
    • G08B25/01—Alarm systems in which the location of the alarm condition is signalled to a central station, e.g. fire or police telegraphic systems characterised by the transmission medium
    • G08B25/018—Sensor coding by detecting magnitude of an electrical parameter, e.g. resistance

Definitions

  • the present invention generally relates to a slave unit of an automatic fire notification system, and an automatic fire notification system using the same, and more particularly, to a slave unit of an automatic fire notification system electrically connected to a master unit via a pair of electric wires. And an automatic fire alarm system using the same.
  • the automatic fire alarm system detects the occurrence of a fire with a slave unit consisting of a heat detector, smoke detector, flame detector, etc., and sends it to a master unit consisting of a receiver. It is configured to notify the fire occurrence from the slave unit.
  • the P-type automatic fire alarm system notifies the base unit consisting of receivers of the occurrence of a fire when the slave unit electrically short-circuits the pair of wires.
  • a slave unit notifies the master unit of the occurrence of a fire through communication using a transmission signal transmitted through a transmission line.
  • an R-type automatic fire alarm system is used for large-scale buildings, and a P-type automatic fire alarm system is often used for buildings of medium-sized or smaller because of ease of construction.
  • an automatic fire alarm system there is a system having a function of interlocking with other devices such as smoke prevention equipment and emergency broadcasting equipment.
  • the slave unit has a function of generating a linkage report for linking other devices, and the master unit receives the linkage report from the slave unit, thereby Execute linkage.
  • the master unit receives the linkage report from the slave unit, thereby Execute linkage.
  • it is necessary to provide separate lines for the fire alarm and the interlocking alarm because the fire alarm and the interlocking alarm for notifying the occurrence of a fire cannot be distinguished by the master unit in one line.
  • Patent Document 1 as a P-type automatic fire alarm system, a system in which a plurality of fire detectors as slave units are connected to a plurality of sensor lines derived from a fire receiver as a master unit.
  • the slave unit detects an abnormality detection signal having the same signal format as the fire signal to be output to the master unit when a failure is detected in the slave unit itself. It is configured to output for a predetermined time different from the output time.
  • the master unit distinguishes from the input of the fire signal due to the difference in the input time of this signal, and performs a predetermined alarm operation.
  • the present invention has been made in view of the above-mentioned reasons, and uses a slave unit of an automatic fire alarm system capable of adding an interlocking function with another device while being P-type with a simple configuration as much as possible.
  • the purpose is to provide an automatic fire alarm system.
  • the slave unit of the automatic fire notification system of the present invention is electrically connected to a pair of electric wires to which a voltage is applied, a transmission circuit that draws current from the pair of electric wires as a drawing current, and a fire report that notifies the occurrence of a fire.
  • a control unit that controls the transmission circuit and adjusts the current value of the current drawn, the control unit comprising: When the determination result of the determination unit is in the fire report state, a fire report is generated by adjusting the current value of the drawn current to a predetermined fire report level, and when the determination result of the determination unit is in the interlocked report state The current value of the pull-in current is adjusted to a predetermined interlocking report level different from the fire alarm level, and the interlocking report is generated.
  • the automatic fire alarm system of the present invention includes the above slave unit and a master unit that applies a voltage between the pair of electric wires.
  • the present invention has the advantage of being able to add an interlocking function with other devices while having a simple configuration as much as possible and being P-type.
  • FIG. 1 is an explanatory diagram illustrating a schematic configuration of the automatic fire alarm system according to the first embodiment.
  • FIG. 2 is an explanatory diagram illustrating the overall configuration of the automatic fire alarm system according to the first embodiment.
  • FIG. 3 is a schematic circuit diagram illustrating a slave unit of the automatic fire alarm system according to the first embodiment.
  • FIG. 4 is an explanatory diagram of the operation of the automatic fire notification system according to the first embodiment.
  • FIG. 5 is an explanatory diagram of the operation of the automatic fire notification system according to the first embodiment.
  • FIG. 6 is an explanatory diagram of the operation of the automatic fire notification system according to the second embodiment.
  • FIG. 7 is a schematic circuit diagram illustrating a slave unit of the automatic fire alarm system according to the third embodiment.
  • the automatic fire notification system 100 includes at least one slave unit 1 and one master unit 2.
  • the master unit 2 includes an application unit 21 that applies a voltage between the pair of electric wires 51 and 52.
  • mobile_unit 1 is provided with the transmission circuit 14, the judgment part 161, and the control part 162.
  • the transmission circuit 14 is electrically connected to a pair of electric wires 51 and 52 to which a voltage is applied, and is configured to draw current from the pair of electric wires 51 and 52 as an incoming current.
  • the determination unit 161 is configured to determine an operation state including two states of a fire report state for notifying the occurrence of a fire and a linked report state for interlocking the other device 3 (see FIG. 2).
  • the control unit 162 controls the transmission circuit 14 and adjusts the current value of the drawing current.
  • control unit 162 adjusts the current value of the drawn current to a predetermined fire report level and generates a fire report. Further, the control unit 162 is configured to adjust the current value of the drawn current to a predetermined linked report level different from the fire report level and generate the linked report when the determination result of the determining unit 161 is in the linked report state. ing.
  • the control unit 162 controls the transmission circuit 14 according to the determination result of the determination unit 161 and adjusts the current value of the drawn current. Report and linked report.
  • the slave unit 1 can distinguish between the fire report and the linked report by switching the magnitude (current value) of the current drawn (flowed in) from the pair of electric wires 51 and 52 between the fire report level and the linked report level. The correct current signal.
  • the automatic fire alarm system 100 using the slave unit 1 it is possible to distinguish between the fire alarm and the interlocking information by the master unit 2 without dividing the line for the fire alarm and the interlocking alarm. Therefore, according to the subunit
  • the automatic fire alarm system 100 is not limited to an apartment house, for example, a commercial facility, a hospital, a hotel, a miscellaneous building, etc. Applicable to various buildings.
  • slave unit 1 In the automatic fire alarm system 100 of the present embodiment, as shown in FIG. 2, one master unit 2 and a plurality of slave units 101, 102, 103,... It has been. When each of the plurality of slave units 101, 102, 103... Is not particularly distinguished, it is simply referred to as “slave unit 1”.
  • a pair of electric wires 51 and 52 are wired for each of the first to fourth floors.
  • four sets of two sets of one set (two-wire type) of electric wires 51 and 52 are provided in the entire apartment house 6.
  • these numerical values are examples, and are not intended to be limited to these numerical values.
  • the pair of electric wires 51 and 52 are electrically connected via the terminal resistor 4 at the end of the pair of electric wires 51 and 52 (the end opposite to the base unit 2). Therefore, the main
  • the termination resistor 4 is not an essential configuration and may be omitted.
  • the automatic fire alarm system 100 basically detects the occurrence of a fire in the slave unit 1 including a heat detector, a smoke detector, a flame detector, and the like, and transfers from the slave unit 1 to the master unit 2 as a receiver.
  • Fire notification (fire report) is made.
  • mobile_unit 1 may contain the transmitter etc. not only the sensor which detects generation
  • the transmitter has a push button switch (not shown) and, when a person finds a fire, manually operates the push button switch to notify the master unit 2 of the occurrence of a fire (fire report). It is.
  • the automatic fire alarm system 100 turns on the other device 3 such as a smoke prevention facility and an emergency broadcast facility. Has an interlocking function for interlocking. Therefore, the automatic fire notification system 100 can control the fire prevention door of the smoke prevention facility when a fire occurs, or can notify the occurrence of the fire by sound or voice in the emergency broadcasting facility.
  • the other device 3 is configured to be able to communicate with the parent device 2 by, for example, a wired connection, and is configured to be interlocked with the automatic fire alarm system 100 in response to an instruction from the parent device 2.
  • the other devices 3 here include various devices such as fire prevention facilities such as fire doors and smoke exhaust facilities, emergency broadcast facilities, external transfer devices, and fire extinguishing facilities such as sprinklers. It is not limited to (facility).
  • the external transfer device is a device that notifies external parties, fire fighting organizations, security companies, and the like.
  • P-type Proprietary-type
  • R-type Record-type
  • the slave unit In the P-type automatic fire alarm system, the slave unit notifies the master unit of the occurrence of fire by electrically short-circuiting the pair of electric wires.
  • a slave unit In the R-type automatic fire system, a slave unit notifies the master unit of the occurrence of a fire through communication using a transmission signal transmitted through a transmission line.
  • the automatic fire alarm system 100 of this embodiment is based on the P type. More specifically, in this embodiment, the existing wiring (electric wires 51 and 52) is used as it is in the apartment house where the P-type automatic fire alarm system was installed, and the receiver (master 2) and child Assume that the machine (slave machine 1) is replaced. Note that the automatic fire notification system 100 of the present embodiment can also be employed as a newly introduced automatic fire notification system.
  • the automatic fire alarm system 100 uses the handset 1 that can adjust the current value of the incoming current (the current drawn by the transmission circuit 14 from the pair of electric wires 51 and 52) while being P-type. In part, the same functions as those of the R type are added. Specifically, the automatic fire alarm system 100 adjusts the current value of the drawn current to the fire alarm level or the interlock alarm level at the time of the alarm, so that the master apparatus 2 generates the fire alarm and the interlock alarm. It is possible to distinguish. Therefore, the automatic fire alarm system 100 can realize the fire alarm function and the interlock function on the same line, and can reduce wiring compared to the case where separate lines are provided for the fire alarm and the interlock alarm.
  • mobile_unit 1 is comprised so that the transmission signal showing transmission data may be transmitted by increasing / decreasing the electric current value of a drawing current between a 1st level and a 2nd level. . That is, in the present embodiment, the slave unit 1 can communicate using the transmission signal, and can transmit data to the master unit 2. Therefore, the automatic fire alarm system 100 transmits the identifier (address) previously assigned to the slave unit 1 to the master unit 2 at the time of reporting, for example, so that the unit unit of the pair of electric wires 51 and 52 in the master unit 2 Instead, it is possible to specify the reporting source by a single unit. In addition, the automatic fire alarm system 100 communicates between the master unit 2 and the slave unit 1 when the alarm is not issued (normal time), so that the communication status between the master unit 2 and the slave unit 1 and the operation of the slave unit 1 Automatic testing can be performed on
  • the automatic fire alarm system 100 can exchange various information between the parent device 2 and the child device 1 by using communication.
  • Various functions can be added without being limited to the identification and automatic test.
  • the master unit 2 is a P-type receiver that receives a notification of fire occurrence (fire report) and a notification (link report) for interlocking the other device 3 from the slave unit 1.
  • Base unit 2 is installed in a management room of a building (apartment house 6).
  • the master unit 2 includes an application unit 21, a resistor 22, a reception unit 23, a transmission unit 24, a display unit 25 that performs various displays, and an operation that receives an operation input from a user.
  • the resistor 22 is connected between the applying unit 21 and at least one of the pair of electric wires 51 and 52.
  • the resistor 22 is inserted between one (high potential side) of the pair of electric wires 51, 52 and the application unit 21.
  • the resistor 22 may be inserted between the other (low potential side) electric wire 52 and the application unit 21, or both the pair of electric wires 51 and 52 and the application unit 21. Between them.
  • the receiving unit 23 receives a voltage signal obtained by converting a current signal from the slave unit 1 into a voltage change on the pair of electric wires 51 and 52 due to a voltage drop at the resistor 22.
  • the transmission unit 24 transmits a transmission signal to the child device 1.
  • this master unit 2 receives a fire occurrence notification (fire report) from the slave unit 1, the display unit 25 displays the location of the fire.
  • the processing unit 27 has a microcomputer as a main component, and realizes a desired function by executing a program stored in a memory (not shown).
  • the program may be written in the memory in advance, or may be provided by being stored in a storage medium such as a memory card.
  • the master unit 2 has an interlocking unit 28 for interlocking the other device 3.
  • the master device 2 receives the interlocking report from the slave device 1, the master device 2 can issue an instruction to the other device 3 from the interlocking unit 28, and the other device 3 can be interlocked.
  • the base unit 2 applies the voltage between the pair of electric wires 51 and 52 from the application unit 21, thereby including the slave unit 1 connected to the pair of electric wires 51 and 52. Functions as a power supply for the entire operation.
  • the voltage applied by the application unit 21 between the pair of electric wires 51 and 52 is 24 V DC, but the present invention is not limited to this value.
  • the master unit 2 includes a standby power source 29 using a storage battery so that a power source for operation of the automatic fire alarm system 100 can be secured even in the event of a power failure.
  • Base unit 2 uses a commercial power source, a private power generation facility, etc. (not shown) as a main power source.
  • the application unit 21 automatically switches the power supply source from the main power source to the standby power source 29 when the main power source is interrupted, and automatically switches from the standby power source 29 to the main power source when the main power source is restored.
  • the spare power supply 29 has a capacity and other specifications determined so as to satisfy the standards defined by the ministerial ordinance.
  • the resistor 22 has a first function for converting the current signal transmitted from the slave unit 1 into a voltage signal as described above, and the pair of wires 51 and 52 when the pair of wires 51 and 52 are short-circuited. It has two functions, a second function for limiting the flowing current. In short, the resistor 22 has a first function as a current-voltage conversion element and a second function as a current limiting element.
  • the resistance value of the resistor 22 is 400 ⁇ or 600 ⁇ , but the value is not limited to this value.
  • the receiving unit 23 and the transmitting unit 24 are electrically connected between the resistor 22 and the pair of electric wires 51 and 52.
  • the receiving unit 23 is not limited to the configuration connected between the resistor 22 and the pair of electric wires 51 and 52, and may be electrically connected between the applying unit 21 and the resistor 22, for example.
  • the receiving unit 23 receives the current signal from the slave unit 1 as a voltage signal (voltage change) on the pair of electric wires 51 and 52. That is, the current value of the current drawn from the pair of electric wires 51 and 52 by the handset 1 (drawing current) corresponds to the magnitude of the voltage drop at the resistor 22, so that the receiving unit 23 receives the fire report from the handset 1. And interlocking reports can be received as voltage signals. In other words, the receiving unit 23 receives a voltage signal corresponding to the current value of the drawn current in the slave unit 1 as a fire report or a linked report.
  • the transmission unit 24 transmits a current signal generated on the pair of electric wires 51, 52 by changing the current flowing from the pair of electric wires 51, 52 to the slave unit 1 as a transmission signal.
  • the current signal sent (generated) by the transmitter 24 onto the pair of electric wires 51 and 52 is converted into a voltage signal by a voltage drop at the resistor 22, and the slave unit 1 outputs a voltage signal as a transmission signal from the master unit 2.
  • Receive. the voltage change (voltage signal) generated on the pair of electric wires 51 and 52 when the transmission unit 24 changes the current flowing from the pair of electric wires 51 and 52 is received by the slave unit 1 as a voltage signal. It will be.
  • mobile_unit 1 has the diode bridge
  • a pair of electric wires 51 and 52 are electrically connected to the input end side, and the power supply circuit 12, the transmission circuit 14, and the reception circuit 15 are electrically connected to the output end side.
  • the power supply circuit 12 generates power for operation of the child device 1 from the power on the pair of electric wires 51 and 52.
  • the sensor 13 detects the occurrence of a fire.
  • the control circuit 16 controls the transmission circuit 14 and the reception circuit 15 to transmit a current signal from the transmission circuit 14 by adjusting the current value of the drawn current according to the output of the sensor 13, or from the parent device 2.
  • a transmission signal is received by the receiving circuit 15.
  • the control circuit 16 has a microcomputer as a main component, and realizes a desired function by executing a program stored in a memory (not shown).
  • the program may be written in the memory in advance, or may be provided by being stored in a storage medium such as a memory card.
  • the control circuit 16 includes a determination unit 161 and a control unit 162. That is, in the present embodiment, the determination unit 161 that determines the operation state including the two states of the fire report state and the interlocked report state and the control unit 162 that controls the transmission circuit 14 and adjusts the current value of the drawn current are integrated. It is configured. However, not limited to this example, the determination unit 161 and the control unit 162 may be configured as separate bodies.
  • the transmission circuit 14 is configured to transmit the current value of the current (drawn current) drawn from the pair of electric wires 51 and 52 to the base unit 2 as a current signal.
  • the current signal sent (generated) on the pair of electric wires 51 and 52 by the transmission circuit 14 is converted into a voltage signal by a voltage drop at the resistor 22, and the parent device 2 receives the voltage signal as a signal from the child device 1. To do.
  • the transmission circuit 14 adjusts the current value of the drawing current drawn from the pair of electric wires 51 and 52, a voltage signal corresponding to the current value is received by the parent device 2.
  • FIG. 3 shows a specific example of the transmission circuit 14. That is, as shown in FIG. 3, the transmission circuit 14 has a first lead-in part 141 and a second lead-in part 142, so that current is drawn in the first lead-in part 141 and the second lead-in part 142, respectively. It is configured.
  • the first lead-in portion 141 includes a (first) semiconductor element 143, a (first) resistor 144, and a light emitting diode (LED: Light Emitting Diode) 145 that are electrically connected between the pair of output terminals of the diode bridge 11. And a series circuit.
  • the second lead-in part 142 has a series circuit of a (second) semiconductor element 146 and a (second) resistor 147 electrically connected between a pair of output terminals of the diode bridge 11.
  • each of the semiconductor elements 143 and 146 is composed of an npn-type transistor, and the collector is electrically connected to the output terminal on the high potential side of the diode bridge 11. Furthermore, the emitter of the semiconductor element 143 is electrically connected to the circuit ground (the output terminal on the low potential side of the diode bridge 11) via the resistor 144 and the light emitting diode 145. The emitter of the semiconductor element 146 is electrically connected to the circuit ground (the output terminal on the low potential side of the diode bridge 11) via the resistor 147. The bases of the semiconductor elements 143 and 146 are electrically connected to the control unit 162, respectively.
  • the semiconductor elements 143 and 146 are not limited to npn transistors, but may be pnp transistors, for example.
  • the transmission circuit 14 draws current in the first drawing unit 141 when the semiconductor element 143 is turned on by the control unit 162, and the second drawing unit 142 when the semiconductor element 146 is turned on by the control unit 162.
  • the current is drawn with. Therefore, the transmission circuit 14 has a current of the drawn current when the current is drawn only by the first drawing portion 141 and when the current is drawn by both the first drawing portion 141 and the second drawing portion 142. You can change the value.
  • the transmission circuit 14 can adjust the current value in four stages in total, that is, two stages with the first lead-in part 141 and two stages with the second lead-in part 142 in this way.
  • the slave unit 1 can raise the current value of the pull-in current in four steps by switching the current value of the pull-in current in the transmission circuit 14.
  • the transmission circuit 14 can turn on the light emitting diode 145 when the first drawing unit 141 draws current.
  • the light emitting diode 145 is disposed at a position that is visible from the outside of the slave unit 1 and has a function of notifying that the slave unit 1 is in a fire report state by turning on.
  • the receiving circuit 15 receives a transmission signal from the base unit 2 as a voltage signal (voltage change) on the pair of electric wires 51 and 52. That is, the current signal sent (generated) on the pair of electric wires 51 and 52 by the parent device 2 is converted into a voltage signal by the voltage drop at the resistor 22, so that the receiving circuit 15 transmits the signal from the parent device 2.
  • a voltage signal is received as a signal.
  • the receiving circuit 15 receives, as a voltage signal, a voltage change (voltage signal) that occurs on the pair of electric wires 51 and 52 when the parent device 2 changes the current flowing from the pair of electric wires 51 and 52. become.
  • the storage unit 17 stores at least an identifier (address) assigned to the child device 1 in advance. That is, a unique identifier is assigned to each of the plurality of slave units 101, 102, 103. Each identifier is registered in the parent device 2 in association with each installation location (for example, a room number) of the plurality of child devices 101, 102, 103.
  • the storage unit 17 stores determination conditions for the determination unit 161 to determine the operating state (fire report state, interlocked report state).
  • the determination condition is, for example, a threshold set for the output of the sensor 13 or the number of samplings.
  • the determination unit 161 periodically reads the output (sensor value) of the sensor 13 and determines the operation state by observing the determination conditions in the storage unit 17.
  • the determination unit 161 determines that the state is a fire report state when a state in which the sensor value exceeds the first threshold continues for a predetermined first number of times of sampling (for example, three times).
  • the determination unit 161 determines that it is in the interlocking report state. Assume.
  • the determination unit 161 starts the comparison between the sensor value and the second threshold value, for example, from the time when the determination of the fire report state is confirmed, so as to determine the interlocked report state after determining the fire report state. .
  • These determination conditions are merely examples, and can be changed as appropriate.
  • the determination unit 161 includes three states (fire report state, interlocked report state, and non-reported state) including a non-reporting state (normal state) that is neither a fire report state nor a linked report state. To determine which of the current operating states corresponds. Note that the operation state determined by the determination unit 161 is not limited to three states, and may be only two states of a fire report state and a linked report state, or may be four states or more.
  • the control unit 162 controls the transmission circuit 14 according to the determination result of the determination unit 161 to adjust the current value of the drawn current. That is, as described above, when the determination result of the determination unit 161 is in the fire report state, the control unit 162 adjusts the current value of the drawn current to a predetermined fire report level and generates a fire report. In addition, when the determination result of the determination unit 161 is in the interlocking report state, the control unit 162 adjusts the current value of the drawn current to a predetermined interlocking report level and generates the interlocking report.
  • the interlock report level is a value (current value) different from the fire report level, and in this embodiment, the current value is larger than the fire report level (interlock report level> fire report level).
  • the control part 162 transmits the transmission signal showing transmission data from the transmission circuit 14 by increasing / decreasing the electric current value of drawing current between the binary of a 1st level and a 2nd level.
  • the transmission data is information (identifier) for specifying the issue source for each slave unit, information for automatic testing, and the like.
  • the items of the automatic test include, for example, survival confirmation (keep alive), self-diagnosis of the slave unit 1 and the like.
  • the first level is the same value as the fire alert level
  • mobile_unit 1 is comprised so that transmission signal can be transmitted not only in a fire report state but in a non-reporting state. That is, the subunit
  • the fire alarm is generated by adjusting the current value of the drawn current to the fire report level. Further, when determining that the slave unit 1 is in the interlocking report state, the slave unit 1 generates the interlocking report by adjusting the current value of the drawn current to the interlocking report state. Further, in the fire report state, the slave unit 1 transmits a transmission signal by increasing or decreasing the current value of the drawn current between the first level (fire report level) and the second level.
  • the slave unit 1 transmits data including at least an identifier stored in the storage unit 17 to the master unit 2 by communication using a transmission signal. For this reason, after receiving the fire report from the slave unit 1, the master unit 2 can identify the slave unit 1 that has issued the alarm from the identifier included in the transmission data represented by the transmission signal.
  • FIG. 4 is a flowchart showing the operation of the control circuit (determination unit 161 and control unit 162) 16.
  • FIG. 5 represents the current flowing through the pair of electric wires 51 and 52 with the horizontal axis as the time axis and the vertical axis as the current value.
  • the slave unit 1 switches the current value of the drawing current
  • the current value of the current flowing through the pair of electric wires 51 and 52 is changed in four steps from the base currents I0 to I1, I2, I3, and I4. Assume that it can be pulled up (I0 ⁇ I1 ⁇ I2 ⁇ I3 ⁇ I4).
  • the base unit 2 applies a constant voltage (for example, DC 24V) from the applying unit 21 to the pair of electric wires 51 and 52.
  • a constant voltage for example, DC 24V
  • the determination unit 161 periodically reads the sensor value at a predetermined sampling period (S1 in FIG. 4), and determines whether or not it is in a fire report state (S2). If it is not in the fire report state (S2: No), handset 1 determines that it is in the non-reporting state, and repeats reading of sensor values in determination unit 161. In the non-reporting state, the handset 1 basically does not draw current, and the current value of the drawn current is 0 (zero).
  • the electric current which flows through a pair of electric wires 51 and 52 will be only the part for the electric current which flows through the termination resistance 4, and the electric current value of the electric current which flows through a pair of electric wires 51 and 52 is Basically, it is “I0” as shown in FIG.
  • all the slave units 1 are in a non-reporting state during the period from time t0 to t3.
  • the current value I0 is the standby current flowing through the pair of electric wires 51 and 52 when all the slave units 1 are in the non-reporting state (when neither the fire report nor the interlocking report is generated). Current value. This standby current is used to detect disconnection of the pair of electric wires 51 and 52 in the master unit 2, and when the standby current does not flow, the master unit 2 disconnects the pair of electric wires 51 and 52. Judge that
  • mobile_unit 1 represents transmission data from the transmission circuit 14 by increasing / decreasing the electric current value of a drawing-in current between the 1st level and the 2nd level in a non-reporting state. It has a function of transmitting a transmission signal.
  • both the first level and the second level are set to values smaller than the fire reporting level.
  • the first level in the non-reporting state is 0 (zero)
  • Level ⁇ second level ⁇ fire report level is the fire reporting level
  • any of the slave units 1 increases or decreases the current value of the drawn current between the first level in the non-reporting state and the second level in the non-reporting state. It is possible to transmit a transmission signal.
  • the electric current which flows through a pair of electric wires 51 and 52 will increase / decrease between two values.
  • one of the slave units 1 transmits a transmission signal, and the current value of the current flowing through the pair of electric wires 51 and 52 is between “I0” and “I1”. Increase or decrease.
  • any slave unit 1 when the read sensor value satisfies the predetermined determination condition and the determination of the fire alarm state is confirmed (S2: Yes), the control unit 162 increases the current value of the pull-in current. Adjust to the fire report level (S3). Therefore, when the determination result in any of the slave units 1 shifts from the non-reporting state to the fire reporting state, the current value of the current flowing through the pair of electric wires 51 and 52 is changed from “I0” to “I2” as shown in FIG. To increase. In the example of FIG. 5, any slave unit 1 is in a fire report state during the period from time t3 to time t6.
  • the slave unit 1 increases or decreases the current value of the drawn current between two values of the first level in the fire alarm state and the second level in the fire alarm state, thereby transmitting data from the transmission circuit 14. It has the function to transmit the transmission signal showing. Therefore, when the subunit
  • the determination unit 161 periodically reads the sensor value at a predetermined sampling period (S5), and determines whether or not it is in the interlocking report state (S6). If it is not in the interlocking report state (S6: No), the subunit
  • any of the slave units 1 when the read sensor value satisfies a predetermined determination condition and the determination of the interlocking report state is confirmed (S5: Yes), the control unit 162 increases the current value of the pull-in current. To adjust the linked report level (S7). Therefore, in any of the slave units 1, the judgment result shifts from the fire report state to the linked report state. As shown in FIG. 5, the current value of the current flowing through the pair of electric wires 51 and 52 increases from “I3” to “I4”. To do. In the example of FIG. 5, any slave unit 1 is in the interlocking report state during the period after time t6.
  • the fire report level is 20 mA to 25 mA
  • the interlocking report level is about 40 mA to 45 mA
  • the difference between the first level and the second level when transmitting a transmission signal is 13 mA to 18 mA.
  • the degree is assumed that the degree.
  • the fire report level is assumed to be 5 mA to 8 mA
  • the linked report level is assumed to be about 15 mA to 20 mA
  • the difference between the first level and the second level when transmitting a transmission signal is about 5 mA to 13 mA. It may be assumed.
  • the difference between the first level and the second level when transmitting the transmission signal is not limited to the same value in the non-reporting state and the fire reporting state, and the timing of transmitting the transmission signal is in the non-reporting state. It may be different depending on the state of the fire report. For example, in the non-reporting state, the difference between the first level and the second level when transmitting a transmission signal may be assumed to be about 2 mA to 4 mA.
  • the current value of the drawn current is allowed to vary within a predetermined allowable range. If it is in each tolerance in base unit 2, it can distinguish whether the operation state of sub unit 1 at that time is a fire report state or a linked report state.
  • the fire current is adjusted by adjusting the current value of the drawing current drawn from the pair of electric wires 51 and 52 according to the determination result of the determination unit 161.
  • Information and linked information can be generated. That is, the slave unit 1 can distinguish between the fire report and the linked report by switching the magnitude (current value) of the current drawn (flowed in) from the pair of electric wires 51 and 52 between the fire report level and the linked report level. The correct current signal.
  • the automatic fire alarm system 100 using the slave unit 1 it is possible to distinguish between the fire alarm and the interlocking information by the master unit 2 without dividing the line for the fire alarm and the interlocking alarm. Therefore, according to the subunit
  • the interlocking information level is a current value larger than the fire information level as in the present embodiment.
  • the slave unit 1 first increases the current value of the drawn current when it enters the fire report state and adjusts it to the fire report level, and further increases the current value of the drawn current when it enters the linked report state. Can be adjusted to level.
  • the slave unit 1 can perform the fire report and the linked report by gradually increasing the current value of the current drawn in accordance with the transition from the non-reporting status to the fire reported status and further to the linked report status. .
  • the fire report level is a current value larger than the current value of the standby current flowing through the pair of electric wires 51 and 52 in a state where neither the fire report nor the interlocking report is generated as in this embodiment. Is preferred.
  • base station 2 can distinguish the standby current for the disconnection detection of a pair of electric wires 51 and 52, and the electric current signal which the subunit
  • control unit 162 is configured to transmit a transmission signal representing transmission data by increasing or decreasing the current value of the drawn current between the first level and the second level as in the present embodiment.
  • the handset 1 can transmit information (identifier) for identifying the reporting source in units of handset 1 or information for automatic testing to the base unit 2 as described above. it can.
  • the first level is preferably the same value as the fire alarm level
  • the second level is preferably larger than the fire alarm level and smaller than the interlock alarm level.
  • the first level and the second level here are the first level and the second level in the fire report state as described above. According to this configuration, since the slave unit 1 increases or decreases the current value of the drawn current based on the fire report level when transmitting the transmission signal, it is possible to transmit the transmission signal in the fire report state. Accordingly, the slave unit 1 can transmit information (identifier) for specifying the reporting source to the master unit 2 immediately after the fire report is generated, for example, for each slave unit.
  • the automatic fire alarm system 100 includes any one of the slave units 1 and the master unit 2 that applies a voltage between the pair of electric wires 51 and 52. Therefore, according to the automatic fire notification system 100, there is an advantage in that the interlocking function with the other device 3 can be added with the simple configuration as much as possible while being the P type.
  • Embodiment 2 The subunit
  • the same configurations as those of the first embodiment are denoted by common reference numerals, and description thereof will be omitted as appropriate.
  • control unit 162 is configured to transmit a transmission signal during a transmission period and to generate a fire report or a linked report during the notification period. In other words, the control unit 162 does not generate a fire report or a linked report during the transmission period, and does not transmit a transmission signal during the notification period.
  • the base unit 2 periodically generates a synchronization signal.
  • the slave device 1 receives the synchronization signal from the master device 2, the slave device 1 operates for a certain period in synchronization with the synchronization signal.
  • the operation period of the control unit 162 is time-divided into a reception period T1 for receiving a synchronization signal, a transmission period T2, and a notification period T3.
  • transmission period T2 a period in which the slave unit 1 transmits a transmission signal
  • notification period T3 a period in which a linked report is generated
  • the operation period of the control unit 162 is divided into a transmission period and a notification period.
  • the fire report level and the interlock report level can be set relatively freely without considering interference with the transmission signal.
  • the short circuit 148 is provided in place of the second lead-in part 142 in the example of FIG. As illustrated in FIG. 3, the short circuit 148 includes a thyristor 149 electrically connected between a pair of output terminals of the diode bridge 11. The gate of the thyristor 149 is electrically connected to the control unit 162.
  • the transmission circuit 14 draws current in the first drawing unit 141 when the semiconductor element 143 is turned on by the control unit 162, and current in the short circuit 148 when the thyristor 149 is turned on by the control unit 162 Pull in. Therefore, the transmission circuit 14 can change the current value of the drawn current when the current is drawn only by the first drawing unit 141 and when the current is drawn by the short circuit 148.
  • the control unit 162 is configured to set the pull-in current to the short-circuit current by operating the short-circuit 148 when either the fire report or the interlock report is generated.
  • the control unit 162 operates the first pull-in unit 141 when a fire report occurs and operates the short circuit 148 when a linked report occurs.
  • the control unit 162 operates the short circuit 148 to flow a short circuit current between the pair of electric wires 51 and 52, thereby adjusting the current value of the drawn current to the interlocking report level.
  • the short circuit 148 short-circuits between the pair of electric wires 51 and 52, the current flowing through the pair of electric wires 51 and 52 is limited by the resistance 22 of the parent device 2.
  • the current value of the lead-in current can be adjusted relatively easily (short circuit 148) when either the fire alarm or the interlock alarm occurs. Can be realized. Therefore, there is an advantage that the cost of the slave unit 1 is reduced.
  • the control unit 162 exemplifies the case where the short circuit 148 is activated when the interlocking report is generated.
  • the present invention is not limited to this example, and the short circuit 148 may be activated when the fire report occurs. .

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  • Business, Economics & Management (AREA)
  • Emergency Management (AREA)
  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Fire Alarms (AREA)

Abstract

Un circuit de transmission (14) est connecté électriquement à une paire de fils électriques (51, 52), à laquelle une tension est appliquée, et tire un courant sous la forme d'un courant d'appel depuis la paire de fils électriques (51, 52). Une unité de détermination (161) détermine un état de fonctionnement, comprenant deux états, à savoir un état d'alarme incendie pour notifier la survenance d'un incendie et un état d'alarme de verrouillage pour amener un autre dispositif à fonctionner d'une manière verrouillée. Lorsque le résultat de détermination de l'unité de détermination (161) indique l'état d'alarme incendie, une unité de réglage (162) ajuste la valeur du courant d'appel à un niveau d'alarme incendie prédéterminé afin de générer une alarme incendie. Lorsque le résultat de détermination de l'unité de détermination (161) indique l'état d'alarme de verrouillage, l'unité de réglage (162) ajuste la valeur du courant d'appel à un niveau d'alarme de verrouillage prédéterminé afin de générer une alarme de verrouillage.
PCT/JP2015/001974 2014-04-18 2015-04-08 Unité asservie pour système d'alarme incendie automatique et système d'alarme incendie automatique utilisant celle-ci WO2015159511A1 (fr)

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EP15780542.5A EP3133569B1 (fr) 2014-04-18 2015-04-08 Une unité asservie pour système d'alarme incendie automatique et un système d'alarme incendie automatique

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JP2014086876A JP6464519B2 (ja) 2014-04-18 2014-04-18 自動火災報知システムの子機、およびそれを用いた自動火災報知システム
JP2014-086876 2014-04-18

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WO2017073061A1 (fr) * 2015-10-29 2017-05-04 パナソニックＩｐマネジメント株式会社 Dispositif de détection d'incendie de système avertisseur d'incendie automatique, et système avertisseur d'incendie automatique le comprenant
JP2017084180A (ja) * 2015-10-29 2017-05-18 パナソニックＩｐマネジメント株式会社 自動火災報知システム
EP3361461A1 (fr) * 2017-02-13 2018-08-15 Safco Engineering S.p.A. Unité électronique permettant de surveiller et de commander des détecteurs d'incendie fonctionnant à différents niveaux de tension et système de détection d'incendie

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JP6646835B2 (ja) * 2016-01-19 2020-02-14 パナソニックＩｐマネジメント株式会社 親機、及び自動火災報知システム

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JP2000067338A (ja) * 1998-08-21 2000-03-03 Nittan Co Ltd 異常表示装置
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JPH11185189A (ja) * 1997-12-25 1999-07-09 Nittan Co Ltd 火災報知システム
JP2000067338A (ja) * 1998-08-21 2000-03-03 Nittan Co Ltd 異常表示装置
JP2002109649A (ja) * 2000-09-28 2002-04-12 Hochiki Corp 火災受信機
JP2011243106A (ja) * 2010-05-20 2011-12-01 Hochiki Corp 火災報知システム

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Publication number Priority date Publication date Assignee Title
WO2017073061A1 (fr) * 2015-10-29 2017-05-04 パナソニックＩｐマネジメント株式会社 Dispositif de détection d'incendie de système avertisseur d'incendie automatique, et système avertisseur d'incendie automatique le comprenant
JP2017084180A (ja) * 2015-10-29 2017-05-18 パナソニックＩｐマネジメント株式会社 自動火災報知システム
EP3361461A1 (fr) * 2017-02-13 2018-08-15 Safco Engineering S.p.A. Unité électronique permettant de surveiller et de commander des détecteurs d'incendie fonctionnant à différents niveaux de tension et système de détection d'incendie

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EP3133569B1 (fr) 2021-06-09
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JP2015207127A (ja) 2015-11-19
EP3133569A4 (fr) 2017-05-03

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