JP6530203B2 - Alarm system - Google Patents

Description

  The present invention is an alarm system that when a receiver receives a fire alert of a fire detector, the receiver transmits a control message wirelessly to a light alarm device in a caution area and reports an occurrence of a fire by blinking light. About.

  Conventionally, an automatic fire alarm system as an alarm system for monitoring fire in buildings such as office buildings, store buildings, hospitals, hotels, etc. and notifying people in the building of occurrence of abnormality when a fire occurs Is installed. In such an automatic fire alarm system, notification of the occurrence of a fire is generally performed by sound such as a buzzer, a bell or a message. In addition to the notification by the sound, display notification using an LED, a red lamp or the like is appropriately performed.

  By the way, in recent years, an alarm system is also proposed that reports the occurrence of a fire by flashing a high-brightness white light (flash light) having high visibility with sound as well as sound as well as sound (for example, see Patent Documents 1 to 3). . According to such an alarm system, the occurrence of a fire can be notified not only by sound but also by flickering of strong light, so that, for example, even a hearing impaired person can recognize the occurrence of a disaster early and surely.

  In addition, a wireless alarm system has also been proposed in order to reduce labor and cost due to wiring (see, for example, Patent Document 4). The wireless alarm system outputs a fire signal to the repeater via the electric path when the fire alarm of the fire detector is received by the fire receiver, and the alarm command signal (control message) is lighted from the repeater. The light alarm device transmits light to the device, drives the light emitting unit to emit light after a predetermined delay time Δt after receiving the alarm command signal, and repeats light emission at a predetermined cycle T. In addition, for the light alarm device installed at a place where radio waves do not reach, a radio relay is provided on the way to relay an alarm command signal.

  When receiving the alarm command signal from the relay connected to the fire receiver, the radio wave relay relays and transmits the alarm command signal after the period T has passed, and the light alarm device at the relay destination is predetermined from the reception of the alarm command signal When the delay time Δt has elapsed, the light emitting unit is driven to emit light, and thereafter, light emission is repeated in a cycle T. As a result, although there is a time lag in the first light emission depending on the presence or absence of relaying, when all the light alarm devices start light emission, synchronous light emission is performed with a cycle T, and photosensitivity due to light emission at disjointed timings Make it possible to eliminate the seizure problem.

Utility Model Registration No. 3113946 JP 2005-165740 A JP, 2011-198194, A JP, 2014-186430, A

  By the way, in the conventional automatic fire alarm system, for fire protection objects whose total area exceeds 3000 square meters with 5 floors or more with the number of floors excluding basement, fire alarm on the fire floor and directly above the floor at the time of fire alert The fire alarm on the remaining floors needs to be sounded when the fixed time that is up to 10 minutes has passed since the fire was notified, and an extended alarm that makes the whole building sound is required.

  Therefore, even in a wireless alarm system that performs light alarming, light alarming is performed on the fire floor and directly above the floor at the time of fire alarm, and when the fixed time that is up to 10 minutes has passed since the fire alarm, even on the remaining floors It is necessary to have a light alarm and an extended alarm of the light alarm which makes the whole building sound.

  As described above, in a wireless alarm system that performs light alarming, light provided with a radio relay or relay function provided in the middle depending on conditions such as communication distance from the light alarm control device connected to the receiver side. It requires relay transmission by the alarm device.

  Therefore, when a control message for the expansion alarm is transmitted after a certain time has passed since the fire was notified, the alarm operation of some light alarm devices to be the transmission destinations of relay transmission may be slower than other light alarm devices. There is a problem that there is a problem that the delay of the expanded warning with the light warning as the whole building alarm leads to the delay of the evacuation of the hearing impaired.

  An object of the present invention is to provide an alarm system capable of quickly evacuating people with hearing impairment by suppressing the delay of an enlarged alarm which expands the range of the light alarm.

(Alarm system)
The present invention relates to an alarm system
When the fire alarm of the fire detector installed in multiple warning areas is detected and the fire alarm is output, the control signal of the light alarm is output to the alarm area where the fire alarm is detected and a predetermined alarm area At the same time, the preliminary control signal of the light alarm is output to the other alert areas, and the light alarm preliminary control signal is output when the predetermined extended alarm waiting time has elapsed from the output of the fire alarm. A receiver that outputs an alarm control signal;
Light that is installed corresponding to each alert area, transmits control telegram of light alarm when control signal is received from receiver, and transmits preliminary control telegram of light alarm when preliminary control signal is received from receiver Alarm control device,
A light alarm device which is installed in each caution area and controls the light emission of the light emitting unit in a predetermined cycle when receiving a control message, and performs a predetermined preliminary alarm control when a preliminary control message is received;
Is provided.

(Preliminary control with intermittent reception as constant reception)
The light alarm device performs intermittent reception in the normal monitoring state, switches to the reception state constantly when the preliminary control message is received, and maintains the reception state constantly as the preliminary alarm control .

(Preliminary control to switch intermittent reception to constant reception immediately before the enlarged alarm)
The light alarm device performs intermittent reception in the normal monitoring state, and switches to the reception state constantly before the extended alarm waiting time when receiving the preliminary control message.

(Preliminary control to emit light after the lapse of extended alarm waiting time)
The light alarm control device transmits the preliminary control message including the enlarged alarm waiting time,
The light alarm device sets the enlarged alarm waiting time when the preliminary control message is received, and controls the light emission of the light emitting unit at a predetermined cycle when the elapse of the enlarged alarm waiting time is detected.

(Preliminary control to set communication route)
The light alarm controller sets a communication route to the light alarm device of the relay destination via one or more light alarm devices, and transmits the control message and the preliminary control message.

(Continuous transmission and intermittent reception)
The light alarm control device sets a transmission cycle (T0) consisting of a predetermined transmission time (T1) and a transmission pause time (T2) a plurality of times, and repeats transmission of a telegram a plurality of times during each transmission time,
The light alarm device performs predetermined control based on the information contained in the telegram received first by intermittent reception.

(Relay control of telegram)
The light alarm control device transmits the relay instruction telegram of the control telegram or the preliminary control telegram when the acknowledgment telegram from all the destinations registered in advance is not received after transmitting the control telegram or the preliminary control telegram. ,
When the light alarm device receives the relay instruction message, the light alarm device relays and transmits the relay control message or the relay preliminary control message.

(Basic effect of alarm system)
The present invention detects a fire alert of a fire detector installed in a plurality of alert areas and outputs a fire alert in an alarm system, and the alert area and adjacency to the alert area detecting the fire alert. When the control signal of the light alarm is output to the predetermined warning area and the preliminary control signal of the light alarm is output to the other warning areas, and the predetermined enlarged alarm waiting time has elapsed from the output of the fire alarm, A receiver that outputs the control signal of the light alarm to the alert area that has output the preliminary control signal of the light alarm, a receiver corresponding to each alert area, and a control telegram of the light alarm when the control signal is received from the receiver And a light alarm control device for transmitting a preliminary control telegram of the light alarm when the preliminary control signal is received from the receiver, and the light emitting unit installed in each caution area when the control telegram is received when the control telegram is received Light emission control, preliminary control Since a light alarm device that performs predetermined preliminary alarm control when a sentence is received is provided, at the time of a fire alarm, preliminary alarm control for preparing a magnified alarm is performed except for the fire floor and the floor immediately above. In the case where the alarming wait time has elapsed, the light alarm device serving as the alarming alarm destination in preparation for the alarming alarm can be operated quickly to perform the light alarming, and the time delay of the alarming light alarm is suppressed. Enable quick evacuation of people with hearing disabilities.

(Effect of preliminary control that always receives intermittent reception)
In addition, since the light alarm device performs intermittent reception in the normal monitoring state and always receives the preliminary control message when receiving the preliminary control message, intermittent reception for the message transmission has a predetermined intermittent reception cycle. When a radio wave is detected by carrier sense, the reception is switched to constant reception and a telegram is received, which causes a time delay in telegram reception, but the control telegram transmitted for the expansion alarm by maintaining the reception state constantly as preliminary alarm control Receive the light alarm quickly and start the light alarm, thereby suppressing the time delay of the expanded light alarm and enabling the rapid evacuation of the hearing impaired.

(Preliminary control to switch intermittent reception to constant reception immediately before the enlarged alarm)
In addition, the light alarm device performs intermittent reception in the normal monitoring state, and when receiving the preliminary control telegram, the light alarm device is constantly switched to the reception state a predetermined time before the expansion alarm waiting time, so At the time of transmission, since it is always in the reception state, the control message is promptly received to start the light alarm, thereby suppressing the time delay of the enlarged light alarm and enabling the rapid evacuation of the hearing impaired person. . Further, by performing intermittent reception until immediately before the enlarged alarm waiting time, consumption current can be reduced and consumption of the battery power can be suppressed as compared with the case of always receiving state during the enlarged alarm waiting time.

(Effect of preliminary control to emit light at the elapse of the extended alarm waiting time)
In addition, the light alarm control device transmits the preliminary control message including the enlarged warning wait time, and the light alarm device sets the enlarged warning wait time when the preliminary control message is received, Since the light emission control of the light emitting unit is performed in a predetermined cycle when it is detected, the light alarm control device only needs to transmit a preliminary alarm message in response to a fire notification, and thereafter the light alarm device side By determining the progress and starting the light alarm, the enlarged light alarm can be performed, and the telegraphic communication of the alarm expansion control can be simplified.

(Effect of preliminary control to set communication route)
In addition, since the light alarm control device sets the communication route for the light alarm device of the relay destination via one or more light alarm devices in advance and transmits the control message and the preliminary control message, the communication route is not set. Eliminate the time delay in case of sending telegrams, and enable quick evacuation of deaf people by a quick magnifying light alert.

(Effect of continuous transmission and intermittent reception)
The light alarm control device sets a transmission cycle (T0) consisting of a predetermined transmission time (T1) and a transmission pause time (T2) a plurality of times, and repeats transmission of a telegram a plurality of times during each transmission time, Since predetermined control is performed based on the information contained in the telegram received first by intermittent reception, the carrier control telegram is continuously transmitted between the plural transmission times across the transmission pause time, A light alarm device that performs intermittent reception by sensing, and can reliably receive a message and perform alarm control and preliminary alarm control. In addition, the light alarm device can reduce power consumption by intermittent reception and extend the life of the battery power supply.

(Effect by relay transmission)
In addition, after transmitting the control message or the preliminary control message, the light alarm control device transmits the relay instruction message of the control message or the preliminary control message when the acknowledgment messages from all the destinations registered in advance are not received. When the light alarm device transmits the relay control message or the relay spare control message when it receives the relay instruction message, the control message is received by all the light control devices as the transmission destination Supports the radio wave environment for the light alarm device installed in the caution area by instructing the relay only when there is a light alarm device that does not receive unnecessary control messages and has not received a control message. Relaying is enabled, and unnecessary relay operation can be suppressed.

Block diagram showing an embodiment of a warning system for performing light alarm control by radio communication of telegram Block diagram showing the functional configuration of the fire receiver and the light alarm control device An explanatory diagram showing the format of the control message Block diagram showing the functional configuration of the light alarm device Time chart showing control operation of alarm system A time chart showing preliminary alarm control to switch intermittent reception of the light alarm device to continuous reception A time chart showing the preliminary alarm control to set the extended alarm waiting time to the light alarm device and start the light alarm Explanatory drawing which showed the preliminary | backup alarm control which sets a communication route and transmits the control message of an expansion alarm. A time chart showing details of emission control by transmission of control message A time chart showing details of light emission control in the case where relay control is performed by transmitting a relay instruction message following FIG. 9 Block diagram showing another embodiment of the alert system for performing light alarm control by radio communication of telegram

[Alarm system]
(Configuration of alarm system)
FIG. 1 is a block diagram showing an embodiment of a warning system that performs light alarm control by wireless communication of control messages.

  As shown in FIG. 1, the alarm system of the present embodiment takes a P-type automatic fire alarm system as an example, and is installed in a building 11 of a scale to be a target of the expansion alarm.

  A plurality of sensor lines 12 serving as power supply signal lines are drawn from the P-type receiver 10 installed in the disaster prevention center etc. toward the alert areas 1F to 5F, and a plurality of fire sensors 14 are connected. .

  The configuration and function of such an automatic fire alarm system are the same as the conventional system, but in addition to this, in the present embodiment, the light alarm control device 16 is installed in each of the 1F to 5F, and the receiver It is connected to the control line 15 drawn individually from 10. Also, a plurality of light alarm devices 18 are disposed in 1F to 5F.

The receiver 10 detects the fire alert of the fire detector 14 installed separately on each floor serving as a warning area on a line basis and outputs a fire alarm, a district acoustic wave (not shown) installed on the fire floor and directly above the floor device outputs a control signal to sound the audible alarm, also fire floor and directly above floor of the light alarm control device other than fire floor and just above floor with respect to the optical warning control unit 16 outputs a control signal of the light alarm 16 Outputs the preliminary control signal of the light alarm.

Moreover, the receiver 10 controls the light alarm other than the fire floor and the directly above the floor which has output the preliminary control signal of the light alarm when the predetermined enlarged alarm waiting time Te which is up to 10 minutes has passed from the output of the fire alarm. The control signal of the light alarm for performing the expansion alarm to the device 16 is output.

  The light alarm control device 16 transmits the control message of the light alarm when the control signal of the light alarm is received from the receiver 10, and the preliminary control message of the light alarm when the preliminary control signal is received from the receiver 10. Send. The transmission of the control message by the light alarm control device 16 corresponds to the intermittent reception of the light alarm device 18, and the transmission period T0 consisting of the predetermined transmission time T1 and the transmission pause time T2 is repeated several times, for example, three times, each transmission time The control message is sent a plurality of times consecutively during T1.

  When receiving the control message, the light alarm device 18 blinks and blinks white light or red light having a predetermined luminous intensity corresponding to the installation place by the light emission control of the light emitting unit using the high brightness LED or the flash light. A light alarm is issued to notify the occurrence of a fire by light.

  The flashing frequency of the light alarm by the light alarm device 18 is 0.5 Hz or more and 2 Hz or less, that is, the light emission cycle Tf is 0.5 seconds or more and 2.0 seconds or less, and the light emission pulse width is 0.2 seconds (200 ms) I try not to exceed it.

  Further, the light alarm device 18 receives the message sent by the light alarm control device 16, starts light emission control of the light emitting unit based on the content of the received control message, and repeats the light emission control at a predetermined light emission cycle Tf. Report a light alert.

In addition, an ID that is unique identification information is assigned to the light alarm device 18 in advance.

In addition, when the light alarm device 18 receives a preliminary control message from the light alarm controller 16, the light alarm device 18 performs predetermined preliminary alarm control. As this preliminary alarm control,
(1) Preliminary alarm control to switch intermittent reception to constant reception,
(2) Pre-alarm control to set the extended alarm waiting time Te and start the light alarm,
(3) Preliminary alarm control to set up a communication route and relay transmission
Do one of the.

(Configuration of receiver)
FIG. 2 is a block diagram showing the functional configuration of the receiver and the light alarm controller. As shown in FIG. 2, the P-type receiver 10 includes a control unit 20, and for the control unit 20, the line reception unit 22, the line control unit 24, the display unit 26, the operation unit 28, the alarm unit 30, and the transfer notification A section 32 is provided.

  The control unit 20 of the receiver is a function realized by execution of a program, for example, and uses, as hardware, a computer circuit or the like provided with a CPU, a memory, various input / output ports and the like.

  The line receiver 22 supplies a predetermined DC voltage, for example, DC 24 volts, as a power supply voltage to the fire sensor 14 from a power supply built in the receiver 10. Further, the line reception unit 22 detects an alarm current flowing to the sensor line 12 by the fire detection of the fire detector 14 and outputs a line current detection signal to the control unit 20 of the receiver, and the control unit 20 of the receiver A fire alarm is determined by detecting that the line current detection signal from the line receiver 22 is equal to or higher than a predetermined fire alarm level.

  The line control unit 24 sets the voltage of the control line 15 to 0 volt in the normal monitoring state, and outputs, for example, a voltage of 24 volts DC as a light alarm control signal, and a voltage of 12 volts DC as a light alarm preliminary control signal. Output

  The display unit 26 is provided with a fire representative light, a district indicator light, various other indicator lights necessary for fire monitoring, a liquid crystal display, and the like. The operation unit 28 is provided with various switches necessary for fire monitoring, such as a main sound stop switch, a region sound stop switch, a transfer stop switch, and an inspection switch. The alarm unit 30 includes a buzzer and a speaker, and outputs an acoustic alarm and a message alarm. The notification unit 32 outputs a fire notification signal to another device.

  In addition, although the receiver 10 is provided with the area sound control part which outputs a control signal to the area sound apparatus installed in each floor and makes it ring, illustration is abbreviate | omitted.

(Configuration of light alarm control device)
As shown in FIG. 2, the light alarm control device 16 includes a control unit 34, an input unit 36 to which the control line 15 is input connected and a communication unit 38 to which the antenna 40 is connected, and the power supply from the receiver 10 or a dedicated power supply Operate.

  The control unit 34 of the light alarm control device is a function realized by executing a program, for example, and uses, as hardware, a computer circuit or the like provided with a CPU, a memory, various input / output ports and the like.

  The input unit 36 detects an alarm control signal of the light alarm which becomes DC 24 volts from the line control unit 24 of the receiver 10 and outputs it to the control unit 34 of the light alarm controller, and also prepares a spare of the light alarm which becomes DC 12 volts. The control signal is detected and output to the control unit 34 of the light alarm control device.

  The communication unit 38 of the light alarm control device transmits and receives telegrams to and from the light alarm device 18 installed on the floor which is the same alert area. In the case of Japan, the communication unit 38 of the light alarm control device performs radio communication according to the standard of the specified low power radio station of 400 MHz band, for example, and it is 12.5 KHz of 426.2500 MHz to 426.8375 MHz. Allows use of any of the 48 channels with bandwidth.

  Prior to the start of operation of the alarm system, the control unit 34 of the light alarm control device registers an ID in advance as identification information of the light alarm device 18 as a communication destination in its own memory.

  Further, when the control signal of the light alarm is input from the input unit 36, the control unit 34 of the light alarm control device generates a control message for performing the light alarm control, and instructs the communication unit 38 of the light alarm control device. Control to transmit.

  Further, when the light alarm preliminary control signal is input from the input unit 36, the control unit 34 of the light alarm control device generates a preliminary control telegram for performing the preliminary warning control of the light warning, and the communication of the light warning control device It instructs the unit 38 to perform transmission control.

  Here, the control message transmitted from the light alarm control device 16 has, for example, a signal format shown in FIG. As shown in FIG. 3, the control message includes a start code, a transmission source ID, a communication control code, control information, and a checksum. Also, the size of the control message is about 100 bits.

  When transmitting a message, the control unit 34 of the light alarm control device sets a transmission cycle T0 consisting of a predetermined transmission time T1 and a transmission pause time T2 a plurality of times, for example, three times, and between transmission times T1. Transmission of message is repeated several times, for example, transmission of four control messages is divided into three times.

  In addition, when the control unit 34 of the light alarm control device determines that the acknowledgment telegram ACK is not received from all the transmission destinations for the transmission of the telegram by comparing the registration ID and the transmission source ID of the acknowledgment telegram. Control is performed to generate and transmit a relay instruction message that instructs relay transmission, and the light alarm device 18 that has received this generates a relay control message and causes relay light transmission.

  In addition, the control unit 34 of the light alarm control device instructs the communication unit 38 of the light alarm control device to transmit a periodic notification message at every predetermined notification time, and the confirmation response message ACK for this is transmitted to all the light alerts When it receives from the device 18, it judges that it is normal, and when there is a light alarm device 18 from which the acknowledgment message ACK can not be obtained, control is performed to output a fault signal to the receiver 10. The output of the fault signal causes the control line 15 to be virtually disconnected, and the receiver 10 detects a break in the control line 15 to display a fault of the light alarm device 18.

(Configuration of light alarm device)
FIG. 4 is a block diagram showing a functional configuration of the light alarm device provided in FIG. As shown in FIG. 4, the light alarm device 18 includes a control unit 42, a communication unit 44 of the light alarm device to which the antenna 46 is connected, and a light emitting unit 48, and operates by a battery power supply (not shown).

  The control unit 42 of the light alarm device is a function realized by executing a program, for example, and uses, as hardware, a computer circuit or the like provided with a CPU, a memory, various input / output ports and the like.

  The communication unit 44 of the light alarm device transmits and receives messages with the light alarm control device 16 installed on the same floor, and other units installed at a place where the radio wave from the light alarm control device 16 does not reach The relay message transmission to the light alarm device 18 is performed. In the case of Japan, the communication unit 44 of the light alarm device performs wireless communication in accordance with the standard of a specified low power wireless station of, for example, a 400 MHz band.

  Further, the communication unit 44 of the light alarm device performs intermittent reception in a normal monitoring state. The cycle of intermittent reception by the communication unit 44 of the light alarm device is set to a predetermined cycle which is shorter by the transmission time T1 by the communication unit 38 of the light alarm control device 16 in FIG. 2 and carrier sensing is performed every intermittent reception cycle. If carrier sensing is possible, the telegram reception from the light alarm control device 16 is enabled.

  The light emitting unit 48 is provided with a high brightness LED, a flash light, and the like and a drive circuit thereof, and when a light emitting instruction is received from the control unit 42 of the light alarm device, a preset light emitting cycle Tf, for example, a cycle of Tf = 2 seconds For example, the light emitting time of 100 milliseconds is repeated.

  When the control unit 42 of the light alarm device detects the reception of the control message of the light alarm from the light alarm controller 16 via the communication unit 44 of the light alarm device, light emission is performed based on the control information set in the control message. Control is performed to instruct the light emission drive to the unit 48, and the light emission drive is repeated for each light emission cycle Tf to cause the light emission unit 48 to perform an operation of notifying a light alarm by blinking of light.

  In addition, when the control unit 42 of the light alarm device detects the reception of the preliminary control message of the light alarm from the light alarm controller 16 via the communication unit 44, the control unit 42 of the light alarm device determines the predetermined based on the control information set in the preliminary control message. Perform preliminary alarm control of The details of this preliminary alarm control will be clarified later.

  Further, when the control unit 42 of the light alarm device receives the control message or the preliminary control message and starts the control, the control unit 42 instructs the communication unit 44 to transmit the acknowledgment message ACK. Here, the transmission timing of the acknowledgment response message ACK determines different delay times corresponding to the ID of the light alarm device 18 and the like, and enables collision of the acknowledgment response messages ACK from the plurality of light alert devices 18 to be avoided. .

  Also, when the control unit 42 of the light alarm device detects the reception of the relay instruction telegram RC from the light alarm control device 16 via the communication unit 44 of the light alarm device after receiving the control message or the preliminary control message, Instruct the communication unit 44 of the light alarm device to set a transmission cycle T0 consisting of a transmission time T1 and a transmission pause time T2 three times, for example, and transmit a relay control telegram or relay preliminary control telegram during each transmission time T1, for example Repeat relay transmission four times.

  Further, when the control unit 42 of the light alarm device detects the reception of the periodic notification message from the light alarm control device 16 via the communication unit 44 of the light alarm device, the control unit 42 performs control to transmit a confirmation response message ACK. Further, when the control unit 42 of the light alarm device detects the reception of the relay instruction message of the periodic notification from the light alarm control device 16 through the communication unit 44 of the light alarm device, the control unit 42 instructs the communication unit 44 of the light alarm device. Then, the transmission cycle T0 consisting of the transmission time T1 and the transmission pause time T2 is set, for example, three times, and transmission of the relay control message is repeated, for example, four times to the periodic notification during each transmission time T1. When the confirmation response telegram of the periodic notification is received from the beginning, control is performed to relay and transmit this to the light alarm control device 16.

[Control operation of alarm system]
FIG. 5 is a time chart showing the control operation of the alarm system, taking as an example the case where a fire occurs in 1F of FIG.

  As shown in FIG. 5, assuming that a fire occurs in 1F of FIG. 1, the receiver 10 detects a fire alert of 1F in step S1 and outputs a fire alarm, and in step S2, the fire floor and the upper floor directly The control signal of the light alarm is output to the control line 15 of the light alarm control device 16 of 1F and 2F by the voltage of DC 24 volts, whereby the light alarm control device 16 of 1F and 2F receives the control telegram of the light alarm in step S3. The light alarming device 18 of 1F and 2F receives the control message, and starts light emission control with a cycle Tf in step S4.

  Subsequently, in step S5, the receiver 10 outputs a preliminary control signal of the light alarm with a voltage of 12 volts DC to the control line 15 of the light alarm control device 16 of 3F to 5F other than the fire floor and directly above. The light alarm control device 16 transmits the control message of the light alarm in step S6, and the light alarm device 18 of 3F to 5F receives the preliminary control message and performs, for example, preliminary alarm control for switching intermittent reception to reception at all times.

  When the receiver 10 detects the elapse of a predetermined enlarged alarm waiting time Te not exceeding 10 minutes from the detection of a fire alert in step S8, the light alarm control device of 3F to 5F other than the fire floor and the directly above in step S9. The light alarm control signal is output to the 16 control lines 15 by the voltage of DC 24 volts, whereby the 3F to 5F light alarm controller 16 transmits the light alarm control message in step S10, and the 3F to 5F light alarm The device 18 receives the control message and starts the light emission control with the cycle Tf in step S11, and the enlargement alarm of the light alarm is performed.

[Preliminary alarm control that always receives intermittent reception]
Fig. 6 is a time chart showing the preliminary alarm control for switching the intermittent reception of the light alarm device to continuous reception, and the fire alarm is shown in Fig. 6 (A) for the fire floor 1F and the directly above floor 2F, Fig. 6 (B) 6C shows the alarm control signal, FIG. 6C shows the light emission control, and FIG. 6E shows the alarm control signal for the floors 3F to 5F other than the fire floor and the floor immediately above. The signal is shown in FIG. 6 (F), the message is shown in FIG. 6 (G) (H), and the light emission control is shown in FIG. 6 (I).

  When the receiver 10 detects the fire alarm of 1F at time t1 in FIG. 6A, as shown in FIG. 6B, the voltage of the control line for the light alarm control device 16 at 1F and 2F is DC24 at time t2. The control signal of the light alarm is output as a bolt, and the light alarm controller 16 transmits the control telegram F of the light alarm as shown in FIG. 6C based on this control signal, and the light alarm 18 detects the control telegram F. The light emission control is received at time t3, and as shown in FIG.

  Further, based on the detection of the fire alarm at time t1, the receiver 10 outputs the preliminary control signal of the light alarm with the voltage of the control line for the light alarm control device 16 of 3F to 5F as DC 12 volts at time t2. Based on the control signal, the light alarm control device 16 transmits the preliminary control telegram P of the light alarm as shown in FIG. 6F, and the light alarm device 18 of 3F to 5F receives the preliminary control telegram at time t3. As shown in 6 (G) reception control, alarm preliminary control is performed in which intermittent reception up to that point is constantly switched to reception.

After that, when the predetermined alarm expansion waiting time Te has elapsed from the reception time t2 of the alarm signal corresponding to the fire alert, the light alarm of 3F to 5F is received by the receiver 10 as illustrated in FIG. The control line voltage for the control device 16 is set to DC 24 volts, and the control signal for the enlarged alarm is output, and the light alarm control device 16 transmits the control telegram F of the light alarm as shown in FIG. 3F to 5F receives the control message at time t3, and starts light emission control of emitting light from the light emitting unit at period Tf from time t6, for example, as shown in the reception control of FIG. 6 (I) . The light alarm range extends from the previous 1F, 2F to the 3F to 5F floors.

  At this time, since the light alarm device 18 is always in the reception state, the control telegram F transmitted at time t5 can be received without causing a time delay due to intermittent reception to start light emission control, and the time delay of the expansion alarm Reduce

  Further, as another preliminary alarm control, as shown in FIG. 6H, when the light alarm device 18 of 3F to 5F receives the preliminary control message at time t3, the time required for the reception of the message from the enlarged alarm waiting time Te is Is set to a predetermined reception switching waiting time Tw shorter than the time obtained by subtracting the time t4 at which the lapse of the reception switching waiting time Tw is detected, that is, at time t4 before transmitting the control telegram F of alarm expansion at time t5 Alarm preliminary control is performed to switch to intermittent reception up to the continuous reception. In this case, the reception switching waiting time Tw is set in the control information of the preliminary control message P and transmitted.

  Thus, as in the case of the preliminary alarm control of FIG. 6 (G), the control telegram F transmitted at time t5 can be received without causing a time delay due to the intermittent reception to start the light emission control. Reduce time delay.

  Further, compared to the preliminary alarm control of FIG. 6G, intermittent reception is performed until time t4, and the time for constant reception is shortened, so the current consumption of the light alarm device 18 operating with battery power is reduced. , To extend the battery life.

[Preliminary control by extended alarm waiting time]
FIG. 7 is a time chart showing the preliminary alarm control to start the light alarm by setting the enlarged alarm waiting time to the light alarm device, and for the case 1F and the floor 2F directly above the fire, a fire is notified in FIG. 7 (A). 7 (B) shows the alarm control signal, FIG. 7 (C) shows the telegram, and FIG. 7 (D) shows the light emission control, and for the floors 3F to 5F other than the fire floor and the floor immediately above, FIG. The alarm control signal is shown in (E), the telegram in FIG. 7 (F), and the light emission control in FIG. 7 (G).

  When the receiver 10 detects the fire alarm of 1F at time t1 in FIG. 7A, as shown in FIG. 7B, the voltage of the control line for the light alarm control device 16 at 1F and 2F is DC24 at time t2. The control signal of the light alarm is output as a bolt, the control telegram F of the light alarm is transmitted as shown in FIG. 7C, and the light emission control of emitting the light emitting unit with a cycle Tf as shown in FIG. Start.

  Also, based on the detection of the fire alarm at time t1, as shown in FIG. 7 (E), the receiver 10 sets the voltage of the control line for the light alarm control device 16 of 3F to 5F at time t2 to 12 volts DC. The preliminary control signal is output, and the light alarm control device 16 transmits the preliminary control telegram P of the light alarm as shown in FIG. 7 (F) based on the preliminary control signal. In the control information of the preliminary control message P, a predetermined enlargement alarm waiting time Te is set.

  When the light alarming device 18 of 3F to 5F receives the control message F at time t3, the expansion alarm waiting time Te is set in the internal timer, and when the progress of the expansion alarm waiting time Te is detected at time t4, the light emitting unit with period Tf The light emission control is started, and the range of the light alarm is expanded to the floors of 1F, 2F to 3F to 5F.

  The preliminary alarm control in FIG. 7 is to transmit a preliminary alarm message P only once in response to a fire alarm, and thereafter perform a magnified alarm under the control of the light alarm device 18 that has received the preliminary alarm message P. Message transmission can be simplified.

[Preliminary control to set communication route]
FIG. 8 is an explanatory view showing the preliminary control of setting the communication route and transmitting the control message of the expansion alarm, and FIG. 8 (A) shows the case of relay transmission without setting the communication route. B) shows the case where the communication route is set and relay transmission is performed.

When the communication route of FIG. 8A is not set, the relay instruction message transmitted from the light alarm control device 16 is received by the light alarm devices 18-1 to 18-3 in the communicable distance, and the relay instruction message is displayed. Based on the above, the relay message is generated, relayed and transmitted, and transmitted to the light alarm devices 18-4 to 18-6 of the relay destination through a plurality of communication routes directly or via the light alarm devices. For this reason, the telegram arrives at the light alarm devices 18-4 to 18-6 of the relay destination through various communication routes, and furthermore, the relay transmission is continuously transmitting the same telegram a plurality of times. Depending on the destination, the time delay until the relayed telegram can be effectively received and controlled may increase.

  Therefore, in the preliminary alarm control of the present embodiment, as shown in FIG. 8B, the communication route when the relay alarming message is received from the optical alarm control device 16 by the optical alarm devices 18-1 to 18-3. Are set in advance, and a telegram is transmitted to the light alarm devices 18-4 to 18-6 of the relay destination according to this communication route. Here, the light alarm devices 18-1 to 18-6 have ID1 to ID6 as identification information.

  The setting of the communication route is performed using the ID 4 to ID 6 of the light alarm devices 18-4 to 18-6 as relay destinations. For example, taking the light alarm device 18-1 as an example, when the light alarm devices 18-4 to 18-6 receive the relay message by transmitting the relay message in which the relay destination ID 4 is set as the control information, the relay destination The relay telegram from the light alarm device 18-1 is received as a valid telegram by only the light alarm device 18-4 having its own ID 4 that matches the ID 4 and the light alarm control device 16 passes through the light alarm device 18-1. A communication route leading to the light alarm device 18-4 can be set, and thereafter, communication of a message according to this communication route is performed.

  Such setting of the communication route may be made by artificially judging from the installation situation in the caution area of the light alarm devices 18-1 to 18-6, or may be set by performing a telegram transmission test and receiving level is maximum. The communication route may be set, and can be set by an appropriate method.

  As described above, in the preliminary alarm control of the present embodiment, the communication route of the message is set and the message is transmitted to reduce the delay of the communication time to the relay destination, and the rapid warning of the light alarm is transmitted. Enables quick evacuation.

[Details of light alarm control by alarm system]
FIG. 9 is a time chart showing details of light emission control by transmission of control message, FIG. 9 (A) shows a fire alert, FIG. 9 (B) shows message transmission by the light alarm control device, FIG. (C) shows light emission control of the light alarm device, and FIG. 9 (D) partially shows relay control of the light alarm device. 10 is a time chart showing details of light emission control when relay control message is transmitted following FIG. 9 and relay control is performed, and FIG. 10 (A) shows a fire notification; (B) shows telegram transmission by the light alarm controller, FIG. 10 (C) shows light emission control of the light alarm device, FIG. 10 (D) shows relay control of the light alarm device, and FIG. The light emission control at the relay destination is shown.

(Light alarm control by transmission of control message)
Assuming that the fire alarm is detected by the receiver 10 at time t1 in FIG. 9A and the fire alarm is output, the control signal of the light alarm that becomes DC 24 volts from the line control unit 24 indicates the fire floor and the directly above floor. It is given to the light alarm control device 16, and the transmission operation of the control message starts from time t2 in FIG. 9 (B).

  The transmission operation of the light alarm control device 16 sets a transmission cycle T0, which is a combination of the transmission time T1 and the transmission pause time T2, three times, and during each transmission time T1, control telegrams D1 to D4, D5 to D8, D9 to D12 are repeatedly transmitted.

  Taking the telegram transmission of the first transmission time T1 as an example, each of the control telegrams D1 to D4 includes light emission waiting time information Ts1 to Ts4 as control information. Taking the control telegram D1 at the head as an example, the light emission waiting time information Ts1 is the time from the transmission end time t3 of the control telegram D1 to the time t7 at which light emission is started by the light alarm device 18 of the transmission destination of FIG. It becomes. Similarly, the remaining control telegrams D2 to D4 also include light emission waiting time information Ts2 to Ts4, and the time which is shortened by one transmission time (T1 / 4) of the control telegram from the first light emission waiting time information Ts1 and Become.

  Specifically, if the light emission waiting time information Ts1 from the end of the transmission of the leading control message D1 to the start of light emission is determined in advance, the remaining light emission waiting time information Ts2 to Ts4 is uniquely determined.

  The light alarm device 18 receiving the control telegrams D1 to D4 performs carrier sensing by intermittent reception, and for example, which of the control telegrams D1 to D4 to be transmitted in the first transmission time T1 is to be received is at the timing of carrier sense. Dependent. However, even when any of the control messages D1 to D4 is received, the time when the light emission waiting time information Ts1 to Ts4 elapses from the end of each message reception is the same time t7, and the light emission control is started at time t7.

  Further, the control telegrams D1 to D4 from the light alarm control device 16 are received by the light alarm device 18 on the same floor shown in FIG. 1, and the light emission timing is different even if the reception of the control telegrams D1 to D4 is different. At the same time t7, it is possible to perform synchronous light emission in which the blinking of the light of the light alarm device 18 matches.

  The same applies to the telegrams D5 to D8 and D9 to D12 transmitted at the second and third transmission times T1.

(Light alarm control by telegram relay)
When transmission of the control telegrams D1 to D12 for three times in FIG. 9 is completed, reception of the acknowledgment telegram ACK from the light alarm device 18 is performed from time t8. The ID of the light alarm device 18 obtained by receiving the confirmation response message ACK is compared with the ID of the transmission destination registered in advance, and it is confirmed that the confirmation response message ACK has not been obtained from all the light alarm devices 18 If determined, the relay instruction telegram RC is transmitted at time t9.

  For example, although the confirmation response message ACK of the two light alarm devices 18 near the light alarm control device 16 of FIG. 1 was obtained, the confirmation response message ACK of the right end light alarm device 18 disposed at a distant place is obtained. If it is not

  In the relay instruction telegram RC transmitted from the light alarm control device 16, relay light emission waiting time information Tr0 which is the time from the transmission end time t10 of the relay instruction telegram RC to the start time t13 of the next light emission cycle Tf under light emission control currently. Send including. The subsequent operation will be described with reference to FIG.

  As shown in FIG. 10 (B), the relay instruction telegram RC that has started transmission at time t9 is currently under control of light emission and two light alarm devices 18 close to the light alarm control device 16 that is always receiving. The relay control telegram R is transmitted after a desired operation time required for relay control is received from the end of reception of the relay instruction telegram RC.

  Also in the transmission of the relay control message, as shown in FIG. 10 (D), the transmission cycle T0, which is the sum of the transmission time T1 and the transmission pause time T2, is set three times, and the relay control message R1 is transmitted during each transmission time T1. .About.R4, R5 to R8 and R9 to R12 are repeatedly transmitted.

  The relay control telegrams R1 to R12 include relay light emission waiting time information Tr1 to Tr12 corrected by adding the relay light emission waiting time information Tr0 obtained from the relay instruction telegram RC in consideration of the respective relay required times ΔT1 to ΔT12. It is sending.

Here, taking the first relay control telegram R1 as an example, the required transmission time ΔTi is the time from the reception end time t10 of the relay instruction telegram RC to the transmission end time t11 of the relay control telegram R1, and the relay control telegram The relay light emission waiting time information Tr1 which is the time from the transmission end time t11 of R1 to the next light emission time t13 under the light emission control is
Tr1 = Tr0−ΔT1
It is determined as

The relay control telegram R2 before the next light emission time t13 is similarly obtained as in the following equation.
Tr2 = Tr0−ΔT2
The end time t13 of the next relay control message R3 coincides with the light emission time, and since light emission control can not be performed in this case, the relay light emission waiting time information Tr0 is shifted by the light emission period Tf to (Tr0 + Tf) The relay light emission waiting time information Tr3 is calculated by the following equation by subtracting the required time ΔT3.
Tr3 = (Tr0 + Tf) -ΔT3 = Tf

The relay light emission waiting time information Tr4 to Tr12 of the relay control telegrams R4 to R12 are similarly calculated as follows.
Tr4 = (Tr0 + Tf) -ΔT4
Tr5 = (Tr0 + Tf) -ΔT5
Tr6 = (Tr0 + 2Tf)-? T6 = Tf
Tr7 = (Tr0 + 2Tf)-ΔT7
Tr8 = (Tr0 + 2Tf)-ΔT8
Tr9 = (Tr0 + 3Tf) -ΔT9 = Tf
Tr10 = (Tr0 + 3Tf) -ΔT10
Tr11 = (Tr0 + 3Tf) -ΔT11
Tr12 = (Tr0 + 3Tf) -ΔT12

  Since the light emission time is determined by the light emission cycle Tf of the light alarm device 18 under light emission control, the relay light emission waiting time information Tr1 to Tr12 is uniquely determined and included in the relay control telegram R1 to R12 and relayed. Can be sent.

  The relay control telegrams R1 to R12 relayed and transmitted by the two light alarm devices 18 near the light alarm control device 16 of FIG. 1 are received by the light alarm device 18 at the far right position, for example, 1 The light emission timing is the same time t17 at any reception of the relay control telegrams R1 to R4 at the first time, and therefore the lights of the two light alarm devices 18 close to the light alarm control device 16 under light emission control blink Can also be performed by the light alarm device 18 at the right end as the relay destination.

[Another embodiment of alarm system]
FIG. 11 is a block diagram showing another embodiment of the alert system for performing light alarm control by wireless communication of a message.

As shown in FIG. 11 , the alarm system of this embodiment takes the R-type automatic fire alarm system as an example, and installs the R-type receiver 100 at a disaster prevention center or the like of the building 11 which is the target of the expansion alarm. The transmission line 15 drawn from the receiver 100 is branched at each floor to connect an R-type fire detector 104, and the fire detector 104 has a unique address. The maximum number of addresses per line of the transmission line 102 is determined to be, for example, 512 addresses, and when connecting fire detectors whose number exceeds the maximum number of addresses, the number of transmission lines 102 is increased.

  The receiver 100 performs polling by sequentially specifying the address of the fire detector 104 to collect analog information such as temperature or smoke concentration. When a fire alarm is detected by the fire sensor 104, a fire interrupt signal is transmitted to the transmission line 102, and the receiver 100 that receives the fire interrupt signal transmits an address search command to transmit a fire alarm signal for the fire sensor 104 Identify addresses and continuously collect analog information to monitor fire progress.

  The light alarm controller 16 installed on each floor is also connected to the transmission line 105 drawn from the receiver 100. A unique address is set in the light alarm controller 16.

  When the fire alarm of the fire detector 104 is detected, the receiver 100 outputs a control signal of a light alarm specifying the address of the light alarm device 16 installed on the fire floor and the immediately upstream floor, and other than the fire floor and the immediately upstream floor The address of the light alarm controller 16 is specified to output a preliminary control signal of the light alarm.

  In addition, the receiver 100 specifies the address of the light alarm control device 16 other than the fire floor and the floor immediately above when the predetermined enlarged alarm waiting time Te which is 10 minutes at the maximum has passed from the output of the fire alarm, and expands it. It outputs a light alarm control signal for alarming.

The configuration and functions of the light alarm control device 16 and the light alarm device 18 other than this, and the preliminary alarm control for the expansion alarm are the same as in the case of the P type automatic fire alarm system of FIG.

[Modification of the present invention]
(Radio wave relay)
In the above embodiment, the light alarm device is provided with the relay function, but a radio wave relay may be provided for exclusive use without the light alarm function to relay and transmit the telegram.

(Light emission control by control message)
The light emission control by transmission of the control message is not limited to FIG. 9 and FIG. 10, for example, the light alarm control device transmits the control message in which the notification time indicating the notification time point is set in the control information, and the light alarm device A light emission scheduled time for each light emission cycle may be scheduled based on the time, and light emission control may be performed such that the light emitting unit emits light each time its own time information generated by the light alarm device reaches the light emission scheduled time.

(Others)
Further, the present invention includes appropriate modifications that do not impair the objects and advantages thereof, and is not limited by the numerical values shown in the above-described embodiment.

10, 100: Receiver 12: Detector line 14: Fire detector 15: Control line 16: Light alarm control device 18, 18-1 to 18-6: Light alarm device 20, 34, 42: Control unit 22: Line Reception unit 24: Line control unit 36: Input unit 38, 44: Communication unit 48: Light emitting unit

Claims (7)

When the fire alarm of the fire detector installed divided into multiple warning areas is detected and the fire alarm is output, the control signal of the light alarm for the warning area and the predetermined warning area where the fire alarm is detected A warning area that outputs a preliminary control signal of a light alarm to another warning area and outputs a preliminary control signal of the light alarm when a predetermined enlarged warning waiting time has elapsed from the output of the fire alarm. A receiver that outputs a control signal of the light alarm to the
It is installed corresponding to each of the alert areas, transmits a control telegram of the light alarm when the control signal is received from the receiver, and performs preliminary control of the light alarm when the spare control signal is received from the receiver. A light alarm control device for transmitting a message;
A light alarm device installed in each of the alert areas, performing light emission control of the light emitting unit in a predetermined cycle when the control message is received, and performing predetermined preliminary alarm control when the preliminary control message is received;
The alarm system characterized by having provided.
In the alarm system according to claim 1,
The alarm system performs intermittent reception in a normal monitoring state, switches to a reception state at all times when receiving the preliminary control message, and maintains the continuous reception state as the preliminary alarm control. .
In the alarm system according to claim 1,
The alarm system is characterized in that the light alarm device performs intermittent reception in a normal monitoring state, and switches to a reception state constantly before a predetermined time of the enlarged alarm waiting time when the preliminary control message is received.
In the alarm system according to claim 1,
The light alarm control device transmits the preliminary control message including the enlarged alarm waiting time,
The light alarm device sets the enlarged alarm waiting time when the preliminary control message is received, and controls the light emission of the light emitting unit at a predetermined cycle when detecting the elapse of the enlarged alarm waiting time. Alarm system.
In the alarm system according to claim 1,
The alarm system characterized in that the light alarm control device transmits a control message and a preliminary control message by setting in advance a communication route to a light alarm device at a relay destination via one or more light alarm devices.
In the alarm system according to claim 1,
The light alarm control device sets a transmission cycle (T0) consisting of a predetermined transmission time (T1) and a transmission pause time (T2) a plurality of times, and repeats transmission of a telegram a plurality of times during each transmission time,
The alarm system is characterized in that the light alarm device performs predetermined control based on information included in a telegram received first by intermittent reception.
In the alarm system according to claim 1,
The light alarm control device relays the control telegram or the preliminary control telegram, when the acknowledgment telegram from all the destinations registered in advance is not received after transmitting the control telegram or the preliminary control telegram. Send an instruction message,
The alarm system characterized in that, when the light alarm device receives the relay instruction message, the light alarm device relays and transmits a relay control message or a relay preliminary control message.

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