Disaster prevention interlocking system

Abstract

To provide a disaster prevention interlocking system that reduces the number of simultaneously unlocking entrance / exit management systems linked to non-fire alarms in a fire alarm system, and to effectively utilize system linkage that unlocks all at once in response to the reception of a fire signal.SOLUTION: A disaster prevention interlocking system interlocks a fire alarm system and an entrance / exit management system, wherein a fire receiver 14 transmits a first transfer notification signal to an entrance / exit control board 26 when a fire alarm is output, and transmits a second transfer notification signal to the entrance / exit control board 26 when a fire signal is continuously received even after a time required for confirming a fire scene from the transmission of the first transfer notification signal, and the entrance / exit control board 26 causes an electric lock 30 in a low-priority area A1 to unlock when the first transfer notification signal is received, causes the electric lock 30 in the low-priority area A1 to lock when the reception of the first transfer notification signal stops without receiving the second transfer notification signal, and causes the electric lock 30 in a high-priority area A2 to unlock when the second transfer notification signal is received without stopping reception of the first transfer notification signal.SELECTED DRAWING: Figure 9

Description

Technical Field

[0001] The present invention relates to a disaster prevention linkage system that operates in conjunction with a fire alarm system for monitoring fires and an entrance / exit system that recognizes the entry and exit of users and controls an electric lock.

Background Art

[0002] Conventionally, in facilities such as office buildings, a fire alarm system has been installed to monitor fires. This system receives a fire signal from a fire detector with a receiver, outputs a fire alarm, and also outputs a transfer signal. In addition, an entrance / exit management system has been installed. When the user ID information read by a reading terminal such as a card reader installed outside the door is received by the entrance / exit control device and it is determined that the information matches the pre-registered registered user ID information, the electric lock of the door is unlocked to prevent third parties other than authorized personnel from entering the facility.

[0003] By the way, the entrance / exit management system that controls the electric lock of the door installed in the facility may hinder evacuation and firefighting activities in the event of a fire. For this reason, when the receiver of the fire alarm system receives a fire signal and issues an alarm, a system linkage is performed by sending the transfer signal output at that time to the entrance / exit management system to unlock all the electric locks so as not to interfere with evacuation and firefighting activities.

Prior Art Documents

Patent Documents

[0004]

Patent Document 1

Patent Document 2

Patent Document 3

Summary of the Invention

Problems to be Solved by the Invention

[0005] However, in an interlocking system in which the mass unlocking of electric locks in an entrance / exit management system is controlled by a transfer signal from such a conventional fire alarm system, even when the fire receiver receives a fire signal from a fire detector due to a cause other than a fire and outputs a non-fire alarm, the mass unlocking of electric locks is performed in the entrance / exit management system by the transfer signal, and there is a problem that the security of the facility by the entrance / exit management system is impaired.

[0006] Therefore, even if it is interlocked so that the mass unlocking of electric locks in the entrance / exit management system is controlled by a transfer signal from the fire alarm system, in actual operation, it is highly likely to operate to handle non-fire alarms by performing a transfer stop operation to stop the control function of mass unlocking of the entrance / exit management system by the transfer signal from the fire alarm system. There is a problem that the function of preventing evacuation behavior and fire fighting activities from being hindered by the system interlock for mass unlocking the electric locks of the entrance / exit management system by the transfer signal from the fire alarm system is not utilized.

[0007] An object of the present invention is to provide a disaster prevention interlocking system that reduces the mass unlocking of the entrance / exit management system linked to a non-fire alarm of the fire alarm system and enables effective utilization of the system interlock for mass unlocking in response to the reception of a fire signal.

Means for Solving the Problems

[0008] (Third Invention: Unlocking Control by Priority) The third invention of the present application is a fire alarm system that receives a fire signal from a fire detector by a fire receiver and outputs a fire alarm, An entrance / exit management system that receives identification information from a reading terminal by an entrance / exit control device and unlocks an electric lock when it determines a match with registered identification information, A disaster prevention interlocking system that interlocks them, When the fire receiver outputs a fire alarm, it transmits a first transfer signal to the entrance / exit control device, and when the reception of the fire signal continues even after the passage of the time required to confirm the fire site from the transmission of the first transfer signal, it transmits a second transfer signal to the entrance / exit control device. When the entry / exit control device receives the first transfer signal, it unlocks the electric lock of the area with a low security priority, and when the reception of the first transfer signal stops without receiving the second transfer signal, it locks the electric lock of the area with a low security priority.

[0009] Also, when the entry / exit control device receives the second transfer signal without the reception of the first transfer signal stopping, it unlocks the electric lock of the area with a high security priority.

[0010] (Fourth Invention: Another Form of Unlocking and Locking Control Based on Priority) The fourth invention of the present application is a fire notification system that receives a fire signal from a fire detector by a fire receiver and outputs a fire alarm, and an entry / exit management system that receives identification information from a reading terminal by an entry / exit control device, discriminates the match with registered information, and unlocks the electric lock, and is a disaster prevention interlocking system that interlocks them, The fire receiver transmits a transfer signal to the entry / exit control device when it outputs a fire alarm, When the entry / exit control device receives the transfer signal, it unlocks the electric lock of the area with a low security priority, and when the transfer signal stops before the time required to confirm the fire site has elapsed since the reception of the transfer signal, it locks the electric lock of the area with a low security priority.

[0011] Also, when the time required to confirm the fire site has elapsed since the reception of the transfer signal without the reception of the transfer signal stopping, the entry / exit control device unlocks the electric lock of the area with a high security priority.

Effect of the Invention

[0012] (Effect According to the Second Invention) According to the second invention of the present application, when the fire receiver determines a fire from the fire signal received from the fire detector based on the set sensitivity and outputs a fire alarm, it changes the setting to a higher sensitivity than the set sensitivity, and when determining a fire based on the changed higher sensitivity, it transmits a transfer signal to the entrance / exit control device. The entrance / exit control device is configured to unlock the electric lock when receiving the transfer signal transmitted by the fire receiver. Therefore, since the transfer signal is not transmitted to the entrance / exit control device at the stage of determining and alarming a fire based on the fire signal of the fire detector according to the set sensitivity, it is surely prevented that the electric lock is unlocked for a non-fire alarm, and the security of the entrance / exit management system is not impaired even if there is a non-fire alarm in the fire notification system.

[0013] Also, when determining and alarming a fire, the sensitivity is changed to a higher sensitivity than the previous set sensitivity and the fire is determined again. If it is a fire signal caused by an actual fire, the fire will surely be determined again based on the changed higher sensitivity, and by transmitting the transfer signal, the entrance / exit control device can quickly unlock the electric locks all at once, enabling appropriate responses to evacuation actions and firefighting activities.

[0014] On the other hand, in the case of a non-fire alarm, during the period from changing to a higher sensitivity to determining a fire again, the cause other than a transient fire is eliminated, and even if the sensitivity is changed to a higher level, a fire is not determined, and since there is no transmission of the transfer signal, it is possible to surely prevent the simultaneous unlocking linked to the non-fire alarm.

[0015] (Effect according to the third invention) According to the third invention of the present application, when the fire receiver receives a fire signal from a fire detector and outputs a fire alarm, it transmits a first transfer signal to the access control device. When the reception of the fire signal continues even after the passage of the time required to confirm the fire site from the transmission of the first transfer signal, it transmits a second transfer signal to the access control device. When the access control device receives the first transfer signal transmitted by the fire receiver, it unlocks the electric locks in the area with a low security priority. When it receives the second transfer signal transmitted by the fire receiver, it unlocks the electric locks in the area with a high security priority. Therefore, in the case of a non-fire alarm in which a fire signal is received and an alarm is issued due to the activation of the fire detector caused by a cause other than fire, only the electric locks installed in the area with a low security priority are unlocked simultaneously by the transmission of the first transfer signal, and the electric locks installed in the area with a high security priority are not unlocked simultaneously. If it is confirmed on-site that it is a non-fire alarm before the second transfer signal is transmitted, the transmission of the first transfer signal is stopped by the recovery operation of the fire receiver, thereby resetting and locking all the electric locks installed in the area with a low security priority simultaneously, and the security of the access control system is not impaired even if there is a non-fire alarm in the fire alarm system.

[0016] Also, when the fire detector issues an alarm due to a fire, a second transfer signal is transmitted after the passage of the time required to confirm the fire site from the first transfer signal, and the electric locks installed in the area with a high security priority are also unlocked simultaneously, enabling appropriate responses to evacuation and firefighting activities.

[0017] (Effect according to the fourth invention) According to the fourth invention of the present application, when the fire receiver receives a fire signal from a fire detector and outputs a fire alarm, it transmits a transfer signal to the entrance / exit control device. When the entrance / exit control device receives the transfer signal transmitted by the fire receiver, it unlocks the electric locks in the area with a lower security priority. If the transfer signal has not stopped even after the time required to confirm the fire scene has elapsed since the reception of the transfer signal, it unlocks the electric locks in the area with a higher security priority. Therefore, in the case of a non-fire alarm in which a fire signal is received and an alarm is issued due to the activation of a fire detector caused by a cause other than a fire, only the electric locks installed in the area with a lower security priority are unlocked simultaneously by the transmission of the transfer signal. Until a predetermined time required to confirm the fire scene has elapsed, the electric locks installed in the area with a higher security priority are not unlocked simultaneously. During that time, if it is confirmed on-site that it is a non-fire alarm, the transmission of the transfer signal is stopped by the recovery operation of the fire receiver. As a result, the simultaneous unlocking of all the electric locks installed in the area with a lower security priority is reset and they are locked simultaneously, and the security of the entrance / exit management system is not impaired even if there is a non-fire alarm in the fire alarm system.

[0018] Also, when the fire detector issues an alarm due to a fire, the electric locks installed in the area with a higher security priority are also unlocked simultaneously after the time required to confirm the fire scene has elapsed since the reception of the transfer signal, enabling appropriate responses to evacuation actions and fire-fighting activities.

Brief Description of the Drawings

[0019]

Figure 1

Figure 2

Figure 3

Figure 4

Figure 5

Figure 6

Figure 7

Figure 8

Figure 9

Figure 10

Figure 11

[0020] [Outline of the disaster prevention interlocking system] FIG. 1 is an explanatory diagram showing an overview of a disaster prevention linkage system that links an entrance / exit management system with a fire alarm system.

[0021] (Fire alarm system overview) As shown in FIG. 1, the fire alarm system 10 is equipped with a fire receiver 14, from which sensor lines L1 to Ln are drawn for each alert area, and a fire sensor 16, as shown representatively in sensor line L1, is connected between the fire receiver 14 and a common line C.

[0022] The fire detector 16 is a so-called on-off type smoke detector or heat detector, etc., which detects changes in physical phenomena such as smoke and heat associated with a fire, issues an alarm, and transmits a fire signal to the fire receiver 14. The fire receiver 14 is a so-called P-type fire receiver that monitors fires in units of the detector latitudes L1 to Ln, and outputs a fire alarm when it receives a fire signal from the fire detector 16.

[0023] When the fire alarm receiver 14 operates in a fire alarm mode, upon receiving a fire signal from the fire detector 16, it turns on or blinks the fire indicator lamp, outputs a fire alarm sound, turns on or blinks the area indicator lamp corresponding to the detector line where the fire alarm was sent to indicate the fire occurrence area, and also controls the output of the area acoustic alarm, etc.

[0024] Also, when the fire alarm receiver 14 receives a fire signal from the fire detector 16 and outputs a fire alarm, it performs a predetermined processing operation to confirm whether it is a non - fire alarm that outputs a fire alarm upon receiving a fire signal from the fire detector 16 due to a cause other than fire, or a fire alarm that outputs a fire alarm upon receiving a fire signal from the fire detector 16 due to an actual fire. When it confirms a fire alarm due to an actual fire, it sends a transfer signal to the entrance - exit management system 12 to cause a linked operation. On the other hand, when it confirms a non - fire alarm, it performs control to make it non - linked without sending a transfer signal to the entrance - exit management system 12.

[0025] (Overview of the Entrance - Exit Management System) As shown in FIG. 1, the entrance - exit management system 12 is composed of a communication control device 20, a center device 22 having a web server function arranged in a management room, etc., a client 24 accessible to the center device 22, an entrance - exit control panel 26 arranged near each room, a card reader 28 arranged on the exit side of the door of each room, and an electric lock 30 arranged on each door, etc.

[0026] The communication control device 20 connects the center device 22 with a serial transmission line 21 such as RS422, connects the entrance - exit control panel 26 with a serial transmission line 25 such as RS485, and further connects the fire alarm receiver 14 with a serial transmission line 18 used for transfer such as RS232. It enables mutual data transmission and control transmission between the center device 22 and the entrance - exit control panel 26, and further enables the transmission of a transfer signal from the fire alarm receiver 14 to the entrance - exit control panel 26 via the center device 22. The client 24 is connected to the center device 22 by a LAN line 23 such as Ethernet (registered trademark), accesses the center device 22, and can refer to and view the entrance - exit management information.

[0027] When operating the entry / exit management system 12, the user ID information (user identification information) of the users permitted to enter and leave each room is preset in the center device 22, and this user ID information is uploaded to and registered in the entry / exit control panel 26.

[0028] When a user enters or leaves each room, when passing or bringing close to a contact type or non-contact type card recording their own user ID information to the card reader 28, the user ID information read by the card reader 28 is transmitted to the entry / exit control panel 26, and collation with the registered user ID information is performed. When the entry / exit control panel 26 determines that the user ID information matches, it unlocks the electric lock 30 to enable the user to enter the room. When the user ID information does not match, it keeps the electric lock 30 in the locked state and rejects the user's entry into the room.

[0029] In addition, when the entry / exit control panel 26 receives the transfer signal transmitted by the fire receiver 14 via the center device 22, it performs a simultaneous unlocking control to unlock all or all of the preset specific electric locks 30.

[0030] [Embodiment of the First Invention] Figure 2 is a block diagram showing the functional configuration of the fire receiver and the entry / exit control panel in the first invention of the present application.

[0031] (Configuration of the Fire Receiver) As shown in Figure 2, the fire receiver 14 includes a control unit 32. The control unit 32 is a function realized by, for example, executing a program, and as hardware, a computer circuit including a CPU, a memory, various input / output ports, etc. is used.

[0032] A receiving unit 34, a recovery unit 36, an operation unit 42, a display unit 44, an alarm unit 46, and a transfer unit 48 are provided for the control unit 32.

[0033] The receiving unit 34 is provided corresponding to the detector lines L1~Ln, and receives and outputs the fire signal from the fire detector 16. The recovery unit 36 temporarily cuts off the power supply to the detector lines L1~Ln and recovers the fire detector 16 that has sent a signal.

[0034] The operation unit 42 is provided with a main sound stop switch, a regional sound stop switch, a transfer report stop switch, etc. The display unit 44 is provided with various display lights necessary for fire monitoring, such as a fire representative lamp and regional display lamps, and displays such as a display.

[0035] The alarm unit 46 is equipped with a speaker, outputs a fire alarm by the main sound, and outputs operation sounds associated with switch operations and voices of various guidances.

[0036] The transfer report unit 48 transmits a transfer report signal to the entrance / exit management system 12 side via a serial transmission line 18 such as RS232 to perform simultaneous unlocking control of electric locks.

[0037] When the control unit 32 detects a fire alarm from the reception output of a fire signal by any one of the reception units 34 corresponding to the sensor lines L1 to Ln, it instructs the display unit 44 and the alarm unit 46 to perform representative fire display and fire area display and controls to output a fire alarm sound.

[0038] In addition, when the control unit 32 receives a fire signal due to the alarm of the fire sensor 16 and outputs a fire alarm, it activates a recovery timer, and when a predetermined time T1 has elapsed, it controls the recovery unit 36 provided corresponding to the sensor line connecting the fired fire sensor 16 to temporarily cut off the power supply, resets and recovers the fired fire sensor 16, and when it receives a fire signal due to the re-alarm of the recovered fire sensor 16, it instructs the transfer report unit 48 to control and transmit a transfer report signal to the entrance / exit control system 12.

[0039] For the sake of simplicity of explanation, the case where one entrance / exit control panel 26 is connected to the serial transmission line 25 from the communication control device 20 is shown, but actually, as shown in FIG. 1, a plurality of entrance / exit control panels 26 are connected as necessary. Also, the case where one card reader 28 and one electric lock 30 are connected to the entrance / exit control panel 26 is shown, but actually, as shown in FIG. 1, a plurality of sets thereof are connected as necessary.

[0040] (Configuration of the Entrance / Exit Control Panel) As shown in Fig. 2, the entrance / exit control panel 26 includes a control unit 50. The control unit 50 is a function realized, for example, by executing a program, and as hardware, a computer circuit equipped with a CPU, a memory, various input / output ports, etc. is used.

[0041] A transmission unit 52 for connecting the communication control device 20, a transmission unit 54 for connecting the card reader 28, and a drive unit 56 for connecting the electric lock 30 are provided for the control unit 50.

[0042] The control unit 50 uploads and registers the user ID information from the center device 22. When it receives the user ID information read from the user card by the card reader 28 via the transmission unit 54, it collates this with the registered user ID information. If it determines that the collation is a match, it unlocks the electric lock 30, and if it determines that the collation does not match, it controls to keep the electric lock 30 in the locked state.

[0043] Also, when the control unit 50 receives the transfer signal transmitted by the fire receiver 14 from the communication control device 20 via the center device 22 or directly from the communication control device 20, it instructs the drive unit 56 to perform unlocking control to energize the solenoid of the electric lock 30 to unlock it.

[0044] The unlocking control of the electric lock 30 by the control unit 50 when receiving the transfer signal from the fire receiver 14 is performed on all the entrance / exit control panels 26 connected to the serial transmission line 25. Therefore, when looking at the entire entrance / exit management system 12, control is performed to unlock all the electric locks 30 simultaneously by the transfer signal from the fire receiver 14.

[0045] (Control Operation of Simultaneous Unlocking by Transfer Signal) Fig. 3 is a time chart showing the system interlocking operation of Fig. 2 in signal form. It is divided into Fig. 3(A) to (F), showing the operations of the fire detector 16, the recovery unit 36, the recovery timer, the fire alarm, the transfer unit 48, and the simultaneous unlocking operation. Note that each operation in Fig. 3 is shown in two values: 0 for the non-operation state and 1 for the operation state.

[0046] When the fire detector 16 issues an alarm and transmits a fire signal at time t1 in Fig. 3(A), the fire receiver 14 receives this signal and outputs a fire alarm as shown in Fig. 3(D). Further, upon receiving the fire signal, the recovery timer in Fig. 3(C) is activated, and at time t2 when a predetermined set time T1 has elapsed, the recovery unit 36 shown in Fig. 3(B) operates to temporarily cut off the power supply to the fire detector 16 that is issuing the alarm, and a recovery operation of supplying power at time t3 is performed.

[0047] Due to the recovery operation by this recovery unit 36, if the fire detector 16 has detected an actual fire and issued an alarm, the fire detector 16 that was reset and stopped by the power cut-off at time t2 will resume operation upon power-on at time t3 and issue an alarm again to transmit a fire signal to the fire receiver 14.

[0048] Based on the re-reception of the fire signal following the recovery operation of the fire detector 16, the fire receiver 14 transmits a transfer signal from the transfer unit 48 to the access control system 12 as shown in Fig. 3(E), and performs a simultaneous unlocking of the electric locks 30 as shown in Fig. 3(F).

[0049] On the other hand, in the case of a non-fire alarm caused by transient causes other than fire, such as smoke from smoking or steam from cooking, even if the fire detector 16 that issued the alarm by the recovery unit 36 is recovered when the predetermined time T1 has elapsed, at that time, the cause other than fire has disappeared, and since the fire detector 16 does not issue an alarm again, the fire receiver 14 does not transmit a transfer signal, and the electric locks 30 of the access control system are not simultaneously unlocked.

[0050] Fig. 4 is a time chart showing the system interlocking operation of Fig. 2 in a flow format, and shows the operation of the access control panel accompanying the operation of the fire receiver.

[0051] As shown in FIG. 4, when the fire receiver 14 detects the reception of a fire signal from the fire detector 16 in step S1 (hereinafter, "step" is omitted), it proceeds to S2 and outputs a fire alarm. Subsequently, it activates a recovery timer in S3, and when it detects the elapse of a predetermined time T1 by the recovery timer in S4, it performs a recovery operation on the fire detector 16 in S5.

[0052] When it detects the reception due to a recurrence report of the fire detector 16 in S6 for the recovery operation of the fire detector 16 in S5, it proceeds to S7 and transmits a transfer signal to the entrance / exit control panel 26. When the entrance / exit control panel 26 receives the transfer signal from the fire receiver 14, it energizes the solenoid of the electric lock 30 in S8 to perform a simultaneous unlocking control.

[0053] On the other hand, if it does not detect the reception due to a recurrence report of the fire detector in S6 for the recovery operation of the fire detector 16 in S5, it skips the transmission of the transfer signal in S7 and proceeds to S9, and does not perform a simultaneous unlocking of the 30 electric locks.

[0054] Also, when the fire receiver 14 detects the reception of a fire recovery operation based on the confirmation of fire extinguishment in S9, it proceeds to S10 and stops the transmission of the transfer signal. In response to this, the entrance / exit control panel 26 proceeds to S11, stops the energization of the solenoid of the electric lock that was simultaneously unlocked in S8, and performs a locking recovery control for simultaneous locking.

[0055] (System interlock operation for performing accumulation reception) The control unit 32 of the fire receiver 14 shown in FIG. 2 may have a control function for accumulation reception. The accumulation reception by the control unit 32 is to suppress non-fire reports. Even when it receives a fire signal due to a report from the fire detector 16, it does not output a fire alarm, and after performing an accumulation reception of continuously receiving the fire signal for a predetermined accumulation time Ts, it performs control to confirm a fire and output a fire alarm.

[0056] In addition, even when the control unit 32 determines a fire based on the accumulated reception and outputs a fire alarm, when the recovery timer is started and a predetermined time T1 has elapsed, the control unit 32 controls the recovery unit 36 provided corresponding to the detector line to which the fire detector 16 that has transmitted the alarm is connected, temporarily cuts off the power supply, resets and recovers the fire detector 16 that has transmitted the alarm, and when a fire signal due to a re-transmission of the fire detector 16 is received after the recovery, the control unit 32 gives an instruction to the transfer unit 48 to perform control to transmit a transfer signal to the access control system 12. Other configurations and functions are the same as those in the case where the accumulated reception in FIG. 2 is not performed.

[0057] (Control Operation of Simultaneous Unlocking by Accumulated Reception and Transfer Signal) FIG. 5 is a time chart showing the system interlocking operation of FIG. 2 that performs accumulated reception in signal form. FIGS. 5(A) to 5(G) show the operations of the fire detector 16, the recovery unit 36, the accumulation timer, the recovery timer, the fire alarm, the transfer unit 48, and the simultaneous unlocking operation. Each operation in FIG. 5 is shown in two values: 0 for the non-operation state and 1 for the operation state.

[0058] When the fire detector 16 transmits a fire signal by transmitting an alarm at time t1 in FIG. 5(A), the fire receiver 14 receives this and starts the accumulation timer in FIG. 5(C). During the accumulation by the accumulation timer, an accumulation lamp provided in the display unit 44 is lit for notification.

[0059] When the time t2 is reached after the accumulation time Ts by the accumulation timer started at time t1, as shown in FIG. 5(B), the recovery unit 36 operates to temporarily cut off the power supply to the fire detector 16 that has transmitted the alarm, and performs a recovery operation to supply power again at time t3. Due to the recovery operation by this recovery unit 36, if the fire detector 16 has detected an actual fire and transmitted an alarm, the fire detector 16 reset by the power supply at time t2 transmits an alarm again and transmits a fire signal to the fire receiver 14 with the re-power-on at time t3. The fire receiver 14 determines a fire based on this accumulated reception and outputs a fire alarm as shown in FIG. 5(E).

[0060] When the fire receiver 14 determines a fire based on accumulated reception, it activates the recovery timer in Fig. 5(D) at time t3. At time t4 when a predetermined set time T1 has elapsed, as shown in Fig. 5(B), it temporarily cuts off the power supply to the fire detector 16 that is operating and transmitting an alarm, and performs a recovery operation to supply power at time t5. Due to this recovery operation of the recovery unit 36, if the fire detector 16 has detected an actual fire and continues to transmit an alarm, it will transmit an alarm again when the power is turned on at time t5 and send a fire signal to the fire receiver 14.

[0061] Based on the re-reception of the fire signal following the recovery operation of the fire detector 16, the fire receiver 14 transmits a transfer signal from the transfer unit 48 to the access control system 12 as shown in Fig. 5(F), and performs a simultaneous unlocking of the electric locks 30 as shown in Fig. 5(G).

[0062] On the other hand, in the case of a non-fire report caused by transient causes other than a fire, such as smoke from smoking or steam from cooking, even if the fire receiver 14 determines a fire based on accumulated reception, if the power supply is temporarily cut off by the recovery operation of the recovery unit 36 when the predetermined time T1 has elapsed by the subsequent recovery timer to recover the fire detector 16, and at this time the cause other than the fire has disappeared and the fire detector 16 does not transmit an alarm again, the transfer signal is not transmitted, and the electric locks in the access control system are not controlled for simultaneous unlocking.

[0063] Fig. 6 is a time chart showing the system interlocking operation of Fig. 2 that performs accumulated reception in a flow format, and shows the operation of the access control panel accompanying the operation of the fire receiver.

[0064] As shown in Fig. 6, when the fire receiver 14 detects the reception of a fire signal from the fire detector 16 at S21, it proceeds to S22 to activate the accumulation timer. When it detects the elapse of the accumulation time Ts by the accumulation timer at S23, it performs a recovery operation of the fire detector 16 at S24. When it detects the reception due to the re-transmission of the fire detector 16 at S25 accompanying this recovery operation, it determines a fire and outputs a fire alarm at S26.

[0065] Subsequently, the recovery timer is activated at S27. When it is detected at S28 that a predetermined time T1 has elapsed by the recovery timer, the recovery operation of the fire detector 16 is performed at S29. When it is detected at S30 that a recurrence report of the fire detector is received with respect to the recovery operation of the fire detector 16 at S29, the process proceeds to S31, and a transfer report signal is transmitted to the entrance / exit control panel 26. When the entrance / exit control panel 26 receives the transfer report signal from the fire receiver 14, it energizes the solenoid of the electric lock 30 at S32 to perform a simultaneous unlocking control.

[0066] On the other hand, if it is not detected at S30 that a recurrence report of the fire detector is received with respect to the recovery operation of the fire detector 16 at S29, the transmission of the transfer report signal at S31 is skipped and the process proceeds to S33, and the simultaneous unlocking of the electric lock 30 is not performed.

[0067] Also, when the fire receiver 14 detects at S33 the reception of a fire recovery operation based on the confirmation of the extinguishment of the fire, the process proceeds to S34 to stop the transmission of the transfer report signal. In response to this, the entrance / exit control panel 26 proceeds to S35, stops the energization of the solenoid of the electric lock 30 that was simultaneously unlocked at S32, and performs a locking recovery control for simultaneous locking.

[0068] The control of performing the recovery operation after determining the fire by such accumulated reception and transmitting the transfer report signal based on the recurrence report is substantially the same as continuously performing the recovery operation for the fire alarm twice in order to transmit the transfer report signal. By substantially repeating the recovery operation twice and transmitting the transfer report signal when the fire is detected, it is possible to more reliably suppress the transmission of the transfer report signal due to a non-fire report.

[0069] Also, in the embodiment of the first invention, when the fire is detected by the recurrence report by one recovery operation, the transfer report signal is transmitted. However, in order to more reliably avoid the transmission of the transfer report signal due to a non-fire report, the recovery operation is repeated a plurality of times of two or more times, and when the fire is detected with respect to the last recovery operation, the transfer report signal is transmitted, so that the transmission of the transfer report signal due to a non-fire report can be more reliably suppressed.

[0070] [Embodiment of the Second Invention] FIG. 7 is a block diagram showing the functional configuration of a fire receiver and an entrance / exit control panel in the second invention of the present application.

[0071] (Configuration of Fire Receiver) As shown in FIG. 7, an analog sensor 62 is connected between transmission lines SL and SC drawn from the fire receiver 14 of the fire alarm system 10, and the fire receiver 14 has a function as a so-called R-type receiver.

[0072] A predetermined address, for example, up to 255 addresses per line, is preset in the analog sensor 62. Based on the reception of a batch AD conversion command transmitted from the fire receiver 14, for example, at a predetermined cycle of one minute, analog data such as smoke density or temperature is detected and held, and then the analog data is transmitted in response to a polling command specifying its own address sent from the fire receiver 14.

[0073] Further, when the detected analog data of the analog sensor 62 exceeds a predetermined fire level, the analog sensor 62 has a function of transmitting a fire interrupt signal to the fire receiver 14 such that the signal bits are all 1s.

[0074] The fire receiver 14 includes a control unit 64. The control unit 64 is a function realized, for example, by the execution of a program, and as hardware, a computer circuit including a CPU, a memory, various input / output ports, etc. is used. A transmission unit 60, an operation unit 42, a display unit 44, an alarm unit 46, and a transfer unit 48 are provided for the control unit 64.

[0075] The transmission unit 60 transmits and receives various commands and data to and from the analog sensor 62 in a predetermined signal format. In this case, the transmission unit 60 transmits a downstream signal to the analog sensor 62 in a voltage mode using a voltage pulse train, and receives an upstream signal in a current mode using a current pulse train transmitted from the analog sensor 62.

[0076] The operation unit 42, the display unit 44, the alarm unit 46, and the transfer unit 48 are the same as those in the embodiment of FIG. 2. Among these, the transfer unit 48 transmits a transfer signal to the access control system 12 side via a serial transmission line 18 such as RS232 to cause simultaneous unlocking control of the electric lock.

[0077] The control unit 64 instructs the transmission unit 60 to transmit a batch AD conversion command, for example, at a 1-minute cycle. Also, during the idle time of the batch AD conversion command, a polling command that sequentially designates 255 addresses is transmitted to the analog sensor 62, and control is performed to receive and process the analog data from the analog sensor 62 at its response timing.

[0078] Further, when the control unit 64 receives a fire interrupt signal from the analog sensor 62, it transmits a group search command that sequentially designates a predetermined group address to detect the address of the analog sensor 62 that has caused the fire interrupt. Then, a batch AD conversion command and a polling command are intensively transmitted to the analog sensor 62 at the detected address to collect analog data and perform control to determine a fire.

[0079] Also, when the control unit 64 collects the analog data of the analog sensor 62 that has caused the fire interrupt and determines a fire based on a predetermined set sensitivity set in advance, it outputs a fire alarm, changes the set sensitivity until then to a high sensitivity, and after a predetermined time has elapsed, if a fire is determined based on the changed high sensitivity, it instructs the transfer unit 48 to transmit a transfer signal.

[0080] Specifically explaining this setting change to the high sensitivity, when the control unit 64 determines a fire because, for example, the smoke density data becomes equal to or higher than a predetermined fire determination level at which it reaches the predetermined set sensitivity, it outputs a fire alarm and changes the predetermined fire determination level to a predetermined fire determination level lower than that with high sensitivity. After a predetermined time has elapsed, if a fire is determined based on the changed high-sensitivity fire determination level, it instructs the transfer unit 48 to transmit a transfer signal.

[0081] (Configuration of the access control panel) As shown in FIG. 7, the entry / exit control panel 26 includes a control unit 50, and a transmission unit 52 for connecting the communication control device 20 to the control unit 50, a transmission unit 54 for connecting the card reader 28, and a drive unit 56 for connecting the electric lock 30 are provided. Its configuration and functions are the same as those of the embodiment in FIG. 2.

[0082] (Control operation of simultaneous unlocking by transfer signal) FIG. 8 is a time chart showing the system interlocking operation of FIG. 7 in a flow format, showing the operation of the entry / exit control panel accompanying the operation of the fire receiver.

[0083] As shown in FIG. 8, the fire receiver 14 transmits a batch AD conversion command at a 1-minute cycle in S41, DA-converts the smoke density detection signal or temperature detection signal by all the analog sensors 62 connected to the same transmission line, and holds it as analog data. Subsequently, a polling command specifying the sensor address sequentially is transmitted, and the sensor data is collected by receiving and holding the analog data transmitted from the analog sensor 62 at the response timing.

[0084] Subsequently, it proceeds to S42. When it detects the reception of the fire interrupt signal transmitted by the analog sensor 62, it proceeds to S43 and transmits a group search command to search for the address of the analog sensor 62 that has generated the fire interrupt. Subsequently, data collection is performed by repeatedly detecting the analog data by designating the address of the analog sensor 62 searched in S44. When a fire is detected based on a predetermined set sensitivity in S45, it proceeds to S46 and outputs a fire alarm. It is also possible to use accumulation reception so that data is collected for a predetermined time in S44, a fire is detected based on the data for a predetermined time in S45, and a fire alarm is output in S46.

[0085] Subsequently, in S47, the current set sensitivity is changed to a predetermined high sensitivity. In S48, data collection of the analog sensor 62 reported in S48 is performed. When it is detected in S49 that a predetermined time has elapsed since the high sensitivity was set in S47, the process proceeds to S50, and it is detected whether or not there is a fire based on the set high sensitivity. If a fire is detected based on the high sensitivity in S50, the process proceeds to S51, and a transfer signal is transmitted to the entrance / exit control panel 26. When the entrance / exit control panel 26 receives the transfer signal from the fire receiver 14, it energizes the solenoid of the electric lock 30 in S52 to perform a simultaneous unlocking control.

[0086] On the other hand, if a fire is not detected based on the high sensitivity in S50, the transmission of the transfer signal in S51 is skipped, and the process proceeds to S53, and the simultaneous unlocking of the electric lock 30 is not performed.

[0087] Also, when the fire receiver 14 detects in S53 the reception of a fire recovery operation based on the confirmation of the extinguishment of the fire, the process proceeds to S54 to stop the transmission of the transfer signal. In response to this, the entrance / exit control panel 26 proceeds to S55, stops the energization of the solenoid of the electric lock 30 that was simultaneously unlocked in S52, and performs a locking recovery control for simultaneous locking.

[0088] [Embodiment of the Third Invention] FIG. 9 is a block diagram showing the functional configuration of the fire receiver and the entrance / exit control panel in the third invention of the present application. In this embodiment, the simultaneous unlocking of the electric locks is characterized by being performed step by step according to the priority.

[0089] (Configuration of the Fire Receiver) As shown in FIG. 9, the fire receiver 14 includes a control unit 32, and a reception unit 34, a recovery unit 36, an operation unit 42, a display unit 44, an alarm unit 46, and a transfer unit 48 are provided for the control unit 32. The configuration and functions other than the transmission control of the transfer signal by the control unit 32 and the transfer unit 48 are the same as those in the embodiment of FIG. 2.

[0090] When the control unit 32 of the fire receiver 14 receives a fire signal due to an alarm from the fire detector 16 and outputs a fire alarm, it instructs the transfer unit 48 to transmit a first transfer signal for an area with a low security priority to the access control system 12. If the reception of the fire signal continues even after a predetermined time required to confirm the fire site has elapsed since the transmission of the first transfer signal, a second transfer signal for an area with a high security priority is transmitted to the access control system 12.

[0091] Also, if the control unit 32 detects the reception of a recovery operation by the recovery switch provided in the operation unit 42 within a predetermined time after receiving the fire signal and transmitting the first transfer signal from the transfer unit 48, it performs control to stop the transmission of the first transfer signal.

[0092] (Configuration of the access control panel) As shown in FIG. 9, the access control panel 26 includes a control unit 50, and a transmission unit 34 for connecting the communication control device 20 to the control unit 50 and a drive unit 56 for connecting the electric lock 30 are provided. Note that, in the same manner as shown in FIG. 2, a card reader 28 that forms a pair with the electric lock 30 is connected to the control unit 50 via the transmission unit 52, but this is omitted in FIG. 9.

[0093] The electric locks 30 connected to the access control panel 26 via the drive unit 56 are grouped into a low-priority area A1 that can tolerate relatively low security and a high-priority area A2 that requires high security according to the importance of security. The control unit 50 stores in advance priority information indicating whether each electric lock 30 is in the low-priority area A1 or the high-priority area A2.

[0094] When the control unit 50 receives the first transfer signal for an area with a low security priority transmitted by the fire receiver 14, it performs control to unlock all the electric locks 30 of the doors installed in the preset low-priority area A1 at the same time.

[0095] In addition, when the control unit 50 receives the second transfer signal for an area with a high security priority transmitted by the fire receiver 14, it performs control to simultaneously unlock all the electric locks 30 of the doors installed in the preset high-priority area A2.

[0096] In addition, after the control unit 50 receives the first transfer signal from the fire receiver 14 and simultaneously unlocks all the electric locks 30 of the doors installed in the low-priority area A1, if it detects the stop of the first transfer signal without receiving the second transfer signal, it performs control to simultaneously lock and restore all the electric locks 30 of the doors installed in the low-priority area A1 that were simultaneously unlocked.

[0097] (Control operation of simultaneous unlocking according to the priority of the transfer signal) FIG. 10 is a time chart showing the system interlocking operation of FIG. 9 in a flow format, and shows the operation of the access control panel accompanying the operation of the fire receiver.

[0098] As shown in FIG. 10, when the fire receiver 14 detects the reception of the fire signal from the fire detector 16 at S61, it proceeds to S62 to output a fire alarm, and then transmits the first transfer signal to the access control panel 26 at S63.

[0099] When the access control panel 26 receives the first transfer signal from the fire receiver 14, it performs control to simultaneously unlock all the electric locks 30 of the doors installed in the low-priority area A1 at S64.

[0100] On the other hand, after transmitting the first transfer signal at S63, the fire receiver 14 detects at S65 whether or not a predetermined time required for on-site confirmation has elapsed. Until the predetermined time elapses, at S66, it monitors the presence or absence of fire recovery by accepting the recovery operation performed when the person in charge goes to the site to confirm non-fire.

[0101] When it detects the elapse of the predetermined time required for on-site confirmation at S65, it proceeds to S67 and transmits the second transfer signal to the access control panel 26. When the access control panel 26 receives the second transfer signal from the fire receiver 14, it performs control to simultaneously unlock all the electric locks 30 of the doors installed in the high-priority area A2 at S68.

[0102] On the other hand, when it is detected that the fire restoration by the restoration operation performed when the person in charge goes to the site at S66 to confirm a non-fire situation, S67 and S69 for transmitting the second transfer report signal are skipped, and the simultaneous unlocking of the electric locks 30 installed in the high-priority area A2 is not performed.

[0103] In addition, when the fire receiver 14 detects the reception of a fire restoration operation based on the confirmation of extinguishing the fire at S69, if the first transfer report signal is being transmitted at S63, this transmission is stopped at S70, and the entrance / exit control panel 26 that has detected the stop of receiving the first transfer report signal performs locking restoration control to simultaneously lock the electric locks 30 installed in the low-priority area A1 at S71.

[0104] In addition, when the fire receiver 14 is transmitting the first transfer report signal at S63 and also transmitting the second transfer report signal at S67, the transmission of the first transfer report signal and the second transfer report signal is stopped at S70, and the entrance / exit control panel 26 that has detected the stop of receiving the first transfer report signal and the second transfer report signal performs locking restoration control to simultaneously lock the electric locks 30 installed in the low-priority area A1 and the high-priority area A2 at S71.

[0105] In this way, when the fire receiver 14 outputs a non-fire report, only the electric locks 30 installed in the low-priority area A1 are simultaneously unlocked by the transmission of the first transfer report signal, the electric locks 30 installed in the high-priority area A2 are not simultaneously unlocked, and if it is confirmed at the site as a non-fire report within a predetermined time until the second transfer report signal is transmitted, the transmission of the first transfer report signal is stopped by the restoration operation of the fire receiver 14, the simultaneous unlocking of the electric locks 30 installed in the low-priority area A1 is reset and they are simultaneously locked, suppressing the security of the entrance / exit management system from being impaired by the transfer report signal due to the non-fire report of the fire alarm system.

[0106] In addition, when the fire alarm of the fire detector 16 continues, the second transfer report signal is transmitted after a predetermined time from the transmission of the first transfer report signal, and the simultaneous unlocking of the electric locks 30 of the doors installed in the high-priority area A2 is also performed, enabling appropriate response to evacuation actions and fire-fighting activities.

[0107] In addition, when the control unit 32 of the fire receiver 14 performs storage reception, after issuing a fire alarm based on the same storage reception as shown in S21 to S26 of FIG. 6, the operations of S63 to S71 of FIG. 10 will be performed.

[0108] [Embodiment of the Fourth Invention] In this embodiment, in an embodiment different from the third invention, the electric locks are grouped according to priority, and for the transfer signal from the fire receiver, the electric locks are gradually unlocked all at once according to the priority.

[0109] (Configuration of the Fire Receiver) The fire receiver of this embodiment is the same as the fire receiver 14 shown in FIG. 9. For the control unit 32 of the fire receiver 14, a receiving unit 34, a recovery unit 36, an operation unit 42, a display unit 44, an alarm unit 46, and a transfer unit 48 are provided. When the control unit 32 receives a fire signal due to the alarm of the fire detector 16 and outputs a fire alarm, it instructs the transfer unit 48 to transmit a transfer signal to the access control system 12, and then, when detecting the reception of a recovery operation, it performs control to stop the transmission of the transfer signal. The other configurations and functions are the same as those of the embodiment in FIG. 9.

[0110] (Configuration of the Access Control Panel) The access control panel of this embodiment is the same as the access control panel 26 shown in FIG. 9. The access control panel 26 includes a control unit 50. For the control unit 50, a transmission unit 52 for connecting a communication control device 20 and a drive unit 56 for connecting an electric lock 30 are provided. Also, for the control unit 50, in the same manner as shown in FIG. 2, a card reader 28 that forms a pair with the electric lock 30 is connected via a transmission unit 54, but the illustration is omitted.

[0111] The electric locks 30 connected to the access control panel 26 via the drive unit 56 are grouped into a low-priority area A1 that can tolerate relatively low security and a high-priority area A2 that requires high security according to the security importance. The control unit 50 stores in advance priority information indicating whether each electric lock 30 is in the low-priority area A1 or the high-priority area A2.

[0112] When the control unit 50 receives the transfer signal transmitted by the fire receiver 14, it performs control to unlock all the electric locks 30 of the doors installed in the preset low-priority area A1 at once.

[0113] In addition, when the reception of the transfer signal continues even after a predetermined time required for confirming the fire site has elapsed since the reception of the transfer signal transmitted by the fire receiver 14, the control unit 50 determines that there is an actual fire, and performs control to unlock all the electric locks 30 of the doors installed in the high-priority area A2 at once.

[0114] In addition, after the control unit 50 receives the transfer signal from the fire receiver 14 and unlocks all the electric locks 30 of the doors installed in the low-priority area A1 at once, if it detects the stop of the transfer signal before the elapse of the predetermined time required for confirming the fire site, it performs control to lock and restore all the electric locks 30 of the doors installed in the low-priority area A1 that have been unlocked at once.

[0115] (Control operation of simultaneous unlocking according to the priority of the electric lock) FIG. 11 is a time chart showing the system interlock operation in the embodiment of the fourth invention in a flow format, and shows the operation of the entrance and exit control panel accompanying the operation of the fire receiver for the functional configuration of FIG. 9.

[0116] As shown in FIG. 11, when the fire receiver 14 detects the reception of the fire signal of the fire detector 16 in S81, it proceeds to S82 to output a fire alarm, and then transmits a transfer signal to the entrance and exit control panel 26 in S83.

[0117] When the entrance and exit control panel 26 receives the transfer signal from the fire receiver 14, it performs control to unlock all the electric locks 30 of the doors in the low-priority area A1 in S84. Subsequently, the entrance and exit control panel 26 detects in S85 whether or not a predetermined time required for on-site confirmation has elapsed since the simultaneous unlocking of the low-priority area A1, and monitors in S86 whether or not the reception of the transfer signal has stopped due to the acceptance of the restoration operation performed when the person in charge goes to the site to confirm a non-fire until the predetermined time elapses.

[0118] When it is detected at S85 that the predetermined time required for on-site confirmation has elapsed, the process proceeds to S87, and control is performed to simultaneously unlock all the electric locks 30 installed in the high-priority area A2.

[0119] On the other hand, when the fire receiver 14 detects at S88 a fire recovery by a recovery operation performed by the person in charge when going to the site to confirm a non-fire situation, the transmission of the transfer report signal is stopped at S89. For this reason, when the entrance / exit control panel 26 detects at S86 the stop of receiving the transfer report signal, it proceeds to S90. When the electric locks 30 in the low-priority area A1 are being simultaneously unlocked at S84, locking restoration control is performed at S90 to simultaneously lock the electric locks 30 in the low-priority area A1.

[0120] Also, when the electric locks 30 in the low-priority area A1 are simultaneously unlocked at S84 and the electric locks 30 in the high-priority area A2 are simultaneously unlocked at S87, locking restoration control is performed at S90 to simultaneously lock the electric locks 30 in the low-priority area A1 and the high-priority area A2.

[0121] In this way, when the fire receiver 14 outputs a non-fire report, only the electric locks 30 installed in the low-priority area A1 are simultaneously unlocked by the transmission of the transfer report signal, and the electric locks 30 installed in the high-priority area A2 are not simultaneously unlocked. Also, in the case of a non-fire report, before the elapse of the predetermined time required for on-site confirmation, the reception of the transfer report signal is stopped by the recovery operation of the fire receiver 14, thereby suppressing the security of the entrance / exit management system from being impaired even if there is a non-fire report in the fire notification system.

[0122] Also, when the alarm transmission due to a fire of the fire detector 16 continues, the reception of the transfer report signal continues, and after the elapse of the predetermined time required for on-site confirmation, the electric locks 30 of the doors installed in the high-priority area A2 are simultaneously unlocked to enable appropriate response to evacuation actions and fire-fighting activities.

[0123] When the control unit 32 of the fire receiver 14 performs accumulated reception, after performing a fire alarm based on the same accumulated reception as shown in S21 to S26 of FIG. 6, the operations of S83, S88, and S89 in FIG. 11 are performed.

[0124] [Modification of the Present Invention] (Fire Receiver) The fire receiver 14 shown in the embodiments of the first, third, and fourth inventions was an example of a P-type fire receiver that detects and alarms a fire for each line. However, the same applies to an R-type fire receiver that sets an address for the fire detector shown in the embodiment of the second invention and detects and alarms a fire for each detector.

[0125] (Electric Lock System) The above embodiment takes as an example the case of simultaneously unlocking the electric locks of the access control system by a transfer signal from the fire alarm system. However, for an electric lock system that remotely controls the electric locks provided on the door by operating an electric lock control panel, the electric locks may be simultaneously unlocked by transmitting a transfer signal from the fire alarm system according to the above embodiment.

[0126] (Security Gate System) The above embodiment takes as an example the case of simultaneously unlocking the electric locks of the access control system by a transfer signal from the fire alarm system. However, for an appropriate security gate system that installs a gate at the entrance and exit of a facility and controls opening and closing by reading and authenticating a card, the gate may be simultaneously opened by transmitting a transfer signal from the fire receiver according to the above embodiment.

[0127] (Others) Further, the present invention includes appropriate modifications that do not impair its object and advantages, and is not limited by the numerical values shown in the above embodiments.

Description of Reference Numerals

[0128] 10: Fire Alarm System 12: Access Control System 14: Fire Receiver 16: Fire Detector 18, 21, 25: Serial Transmission Line 23: LAN Line 20: Communication Control Device 22: Center device 24: Client 26: Entrance / exit control panel 28: Card reader 30: Electric lock 32, 50, 64: Control unit 34: Receiver 36: Recovery unit 48: Transfer information unit 52, 54, 60: Transmission unit 62: Analog sensor

Claims

1. A fire alarm system that receives a fire signal from a fire detector with a fire receiver and outputs a fire alarm; an entrance / exit control system that receives information from the reading terminal at an entrance / exit control device and unlocks an electric lock when the information matches registered information; A disaster prevention linkage system that links the fire receiver transmits a first signal transfer to the entrance / exit control device when the fire alarm is output, and transmits a second signal transfer to the entrance / exit control device when the fire signal is still being received even after a time required for checking the fire site has elapsed since the transmission of the first signal transfer; The entry / exit control device is a disaster prevention linkage system characterized in that when it receives the first report signal, it unlocks the electric locks in areas with a low security priority, and when reception of the first report signal stops without receiving the second report signal, it locks the electric locks in areas with a low security priority.

2. The disaster prevention interlocking system according to claim 1, A disaster prevention linkage system characterized in that the entry / exit control device unlocks the electric lock in an area with a high security priority when it receives the second report signal without stopping reception of the first report signal.

3. A fire alarm system that receives a fire signal from a fire detector with a fire receiver and outputs a fire alarm; an entrance / exit control system that receives information from the reading terminal at an entrance / exit control device and unlocks an electric lock when the information matches registered information; A disaster prevention linkage system that links the fire receiver transmits a notification signal to the entrance / exit control device when the fire alarm is output; The entrance / exit control device unlocks the electric locks in areas with a low security priority when it receives the alarm signal, and locks the electric locks in areas with a low security priority when the alarm signal stops before the time required to confirm the fire site has elapsed since receiving the alarm signal.This is a disaster prevention linkage system.

4. The disaster prevention interlocking system according to claim 3, The disaster prevention linkage system is characterized in that the entrance / exit control device unlocks the electric locks in areas with high security priority when the reception of the alarm signal does not stop and the time required to confirm the fire site has elapsed from the reception of the alarm signal.

Images