JPH04209093A - Alarm receiver - Google Patents

Abstract

PURPOSE:To securely prevent a signal from being outputted to the outside from the receiver by operating a noninterlocking switch when the alarm receiver is started up by turning on the power source. CONSTITUTION:When a fire receiver 10 is started up by turning on the power source, a CPU 1 starts a process and checks whether the noninterlocking switch 6 is ON or not. When a switch 6 is ON, a noninterlocking mode is set. More specifically, the actuation cutoff switch and an alarm transfer stop switch is a switch table 3b are set to ON data 1. Consequently, even if a fire signal is received from a fire sensor 100 while a normal monitor process is entered, the modes of the actuation cutoff switch and transfer stop switch are effective, so interlocking control over and transfer output to external equipment are not performed. Therefore, a sliding fire door, a release, a shutter, and an automatic informing device which informs a firehouse that a fire breaks out are prevented from being erroneously controlled.

Description

[Detailed description of the invention]

[00011

[Industrial Field of Application] The present invention relates to an alarm receiver that controls external equipment or sends a transfer signal in conjunction with the detection of an abnormality such as a fire. [0002] [0002] Conventionally, for example, a fire receiver has a control function that operates equipment such as a fire door installed outside in conjunction with a received alarm of a fire detection signal, and a fire alarm that alerts a fire department etc. A function is provided to output a redirection signal to automatically notify the occurrence. The interlocking control and transfer output of these external devices can be set and canceled by switch operation, and the interlock control mode and transfer output mode can be set or canceled as necessary at the discretion of the administrator. is being carried out. [0003]

[Problems to be Solved by the Invention] By the way, such conventional alarm receivers are used in situations where the installation work of fire alarm equipment in buildings etc. has not been completely completed, for example, at sites where the receiver is interlocked and controlled. In some cases, the installed receiver may be turned on to check its adjustment, etc., before equipment such as a fire door release has been installed. At this time,
Signal line from receiver to sensor, fire door, release,
There is a possibility that the confirmation wire from equipment such as a shutter to the receiver is incorrectly wired, and if the fire reception due to this incorrect placement is set to interlock control mode or relocation output mode, it may be incorrectly connected. For example, if a fire door, release, shutter, etc. are suddenly controlled in conjunction with each other, it may lead to an accident resulting in injury or death. [0004] The present invention has been made in view of such conventional problems, and even if the interlock control mode or transfer output mode is set at startup by turning on the power, the signal from the receiver to the outside is not transmitted. It is an object of the present invention to provide an alarm receiver that can reliably prevent output. [0005]

[Means for Solving the Problems] First, the present invention is directed to an alarm receiver having at least an interlock control mode for controlling external equipment in conjunction with fire detection, which can be set and canceled by switch operation. The present invention is characterized in that such an alarm receiver is provided with a prohibition means for prohibiting signal output to the outside based on the external output mode setting when the alarm receiver is started up by turning on the power. Specifically, the prohibition means detects the operation of the non-interlock setting switch at startup by turning on the power, and controls the external device based on the setting of the interlock control mode, and controls the transfer output based on the setting of the transfer output mode. prohibit. [0006]

[Operation] According to the alarm receiver of the present invention having such a configuration, by operating, for example, the non-interlocking setting switch when starting up by turning on the power, if the interlocking control mode or transfer output mode is set, Even if the terminal device is set, operation in these external output modes is forcibly prohibited to prevent accidents caused by unexpected operation even when the terminal device is installed or adjusted, and to ensure safe handling. I can do it. [0007]

DESCRIPTION OF THE PREFERRED EMBODIMENTS FIG. 1 is a block diagram showing an embodiment of the present invention, taking a fire alarm system as an example. In Figure 1, 1
0 is a fire receiver, which has a built-in CPUI as a control means.The CPU includes a fire receiver circuit 2, a memory section 3, a display section 4, an operation section 5, an interlocking control circuit 7, and a transfer circuit. 8 and an external equipment operation confirmation circuit 9 are provided. A fire detector 100 is connected to the fire receiving circuit 2 via a signal line L1. Also, the interlock control circuit 7 has a control line L.
2, a disaster prevention device such as a fire door latch release is connected as an external device 200. Further, the external device operation confirmation circuit 9 is connected to an external device 200 via a confirmation line L4. Furthermore, the output of the message transfer circuit 8 is given to an automatic notification device or the like using a telephone line through a signal line L3. [0008] The memory section 3 stores a matrix table 3a used for interlock control and a switch table 3b for registering switch setting modes by operating various switches provided on the operation section 5. In the matrix table 3a, the correspondence relationship between the external device 200 that is the target of interlock control for the hot water place where the fire occurred is determined by the sensor line, for example, is set in advance, and the external device that is the target of interlock control is set using the hot water place where the fire occurred as an address pointer. is read out, and interlock control is performed in which the interlock control circuit 7 outputs a control signal to the external device 200. [0009] The switch table 3b has, for example, the table structure shown in FIG. 2, and stores on/off data indicating switch setting states corresponding to, for example, a transfer stop switch, a start/cutoff switch for canceling interlock control, etc. , 1 indicates the device setting state, and 0 indicates the device setting cancel state. And C.P.
When U1 receives a fire signal, matrix table 3
Necessary control is performed by referring to the switch table 3b and switch table 3b. [00101 Referring again to FIG. 1, in the present invention, a non-interlocking switch 6 is provided as a means for newly prohibiting external output to the CPU. The non-interlocking switch 6 has a function of forcibly controlling the state of a switch that sets and cancels an interlocking control mode and a transfer output mode for outputting a signal to the outside when a fire is received. For example, for a start cutoff switch that prohibits interlock control, by operating the non-interlock switch 6, the switch setting state will be forcibly enabled even if the start cutoff switch is in the deactivated state, and the external device 200 interlocking controls can be prohibited. Specifically, even if the ON/OFF data of the startup cutoff switch shown in FIG. 2 is OFF data O,
By operating the non-interlocking switch 6, the data is forcibly rewritten to on data 1. [00111 This point is the same for the transfer stop switch, and even if the transfer stop switch is not operated and the ON/OFF data is OFF data O, it will be rewritten to ON data 1 by operating the non-interlocking switch 6. . Figure 3 is the CPUI of Figure 1.
3 is a flowchart showing control processing at startup by power-on. When the fire receiver 10 is powered on and started up, the CPU starts processing by power-on start, and first steps (hereinafter "steps" are omitted)
Check whether the non-interlocking switch 6 is on or not using Sl. If the non-interlocking switch 6 is on, the process advances to S2 to set the non-interlocking mode. Specifically, the activation cutoff switch and the transfer stop switch in the switch table 3b are set to on data 1. For this reason, even if a fire signal is received from the fire detector 100 in the state of transitioning to the normal monitoring process of S3, the setting mode of the start cutoff switch and transfer stop switch is enabled, so interlocking control for external equipment is performed. and relocation output is not performed. [0012] FIG. 4 is a flowchart showing the contents of the normality monitoring process of FIG. 3. In FIG. 4, first, the presence or absence of fire reception is monitored by Sl, and when a fire is received, the process proceeds to 82, where matrix data is read from the matrix table 3a, and external control equipment to be linked is identified in accordance with the location where the fire occurred. do. Next, it is checked in S3 whether the transmission is stopped or not, and if the transmission is not stopped, the transmission relay provided in the transmission circuit 8 is turned on in S4. Since the transmission is forcibly stopped, the transmission relay 84 is not turned on. [0013] Next, in S5, it is checked whether the main sound is stopped, and if the switch data of the main sound stop switch is off data 0, the main sound is sounded in S6, and if the on data is 1, the process advances to S7. In S7, it is checked whether the start-up cutoff switch for canceling interlocking is on, and if it is off, the process proceeds to S8 to generate an interlocking control output, but when the present invention is started up by turning on the power, it is started by operating the non-interlocking switch 6. Since the switch data of the cutoff switch is forcibly set to ON data 1, the interlock control output of S8 is not performed. [00141 FIG. 5 is an explanatory diagram of the external appearance of the fire receiver 10 in FIG. 1. In FIG. 5, the panel screen of the fire receiver 10 is provided with a function display section 12 and a district display section 14 from the top.
The function display section 12 typically displays the overall functions of the receiver including a fire alarm display. In addition, the district name determined for each sensor line is displayed on a name plate in the district display section 14, and when a fire is received, the corresponding district light is displayed. [0015] Following the district display unit 14, an operation unit 16 is provided, and this operation unit 16 includes a district sound stop switch that stops the ringing of the district bell, and a district sound stop release switch that releases the district bell from being stopped. A switch, a sound stop switch that stops the main sound of the receiver (however, if a fire signal is received again after stopping, the main sound will sound), etc. are provided. An operating section 20 with a switch door 18 on the lower side of the operating section 16
In this embodiment, the second operating section 20 is provided with the operating device of the present invention. Further, the non-interlocking switch 6 shown in FIG. 1 is installed inside the fire receiver 10, and the non-interlocking switch 6 is operated by opening the front panel. [00161 FIG. 6 shows the operation section 20 of FIG. 5 taken out, and the operation section 20 is divided into two parts: an operation section 22 and a display section 24. The operation section 22 has a selection up switch 26
, a selection down switch 28, an execution switch 30, and a release switch 32 are provided. In addition, the display section 24
In this embodiment, there are nine display sections 36-1 to 36.
-9 is provided, and items of setting functions are displayed on the right side of each display section 36-1 to 36-9. Specifically, there are nine operations: release of accumulation, stop of fault sound, stop of transfer, start cutoff, test recovery IB, fire test, standby power test, main sound stop (fire alarm), and main sound stop (smoke prevention). Functions are displayed. A more detailed explanation of these nine operating functions is as follows. (1) Accumulation release The accumulation function of the receiver is canceled and a fire reception display can be made immediately. (2) Stopping the interference sound Completely stop the interference sound. Even if a fault signal is received again after stopping, it will not ring again. (3) Stop shifting signals. Cut off the output of shifting signals to the outside. (4) Start-up shutoff Shut off the activation signal to interlocking equipment such as smoke prevention equipment. (5) Test Restoration If a fire activation state occurs during the test, the restoration operation will be performed once approximately 2 seconds later. (6) Fire test Test whether the receiver can normally fire a fire when receiving a fire signal. In addition to automatic fire tests that automatically select sensor lines, fire tests that specify specific lines can also be performed. (7) Backup power supply test Check the power capacity of the standby power supply. (8) Stopping the main sound (fire alarm) Stops the main sound of the receiver that sounds in response to the alarm from the fire monitoring detector. (9) Stopping the main sound (smoke prevention) Stops the main sound of the receiver due to the alarm signal from the control fire detector. [0017] FIG. 7 is an embodiment circuit diagram showing a switch control circuit of the operating section 20 of FIG. 6. In FIG. 7, 40 is a selection circuit, and the selection circuit 40 is provided with the selection up switch 26, the selection down switch 28, the execution switch 30, and the cancellation switch 32 shown in FIG. The selection circuit 40 has a count decoder 42,
The selection up switch 26 is applied to the UP terminal that specifies the up operation of the count decoder 42, and the output of the selection down switch 28 is applied to the DOWN terminal that specifies the down operation of the count decoder 42. [0018] Further, the outputs of the selection up switch 26 and the selection down switch 28 are applied via an OR gate 44 to a clock terminal CLK for counting operation of a count decoder 42. The count decoder 42 includes a counter that down-counts or up-counts the count clock from the OR gate 44, and decodes the binary output of the counter and sequentially outputs selected outputs to output terminals corresponding to the plurality of display sections shown in FIG. It consists of a decoder and a decoder. [0019] In this embodiment, count decoder 4
2 produces a selection output which becomes bit 1 sequentially at the decoder terminals D1 to Dn. The output of the count decoder 42 is output from AND gates 46-1 to 46-n and AND gates 48-1 to 48n.
are input into each of the fields. AND gates 46-1 to 46-n
The output of the execution switch 30 is connected to the other input of the execution switch 30 . Further, the output of the release switch 32 is connected to the other input of the AND gates 48-1 to 48-n. [00201 The outputs of the AND gates 46-1 to 46-n are given as enable signals to the function setting circuits 50-1 to 50-n, and the outputs of the AND gates 48-1 to 48-n are given to the function setting circuits 50-1 to 50-n. 50-n as a disable signal. Function setting circuits 50-1 to 50
-n is provided with a circuit means for setting a function corresponding to the operation item as shown, for example, in the display section 24 of FIG. When a signal is received, the set function is canceled. [00211 Furthermore, the output of the count decoder 42 provided in the selection circuit 40 is given to the indicators 36-1 to 36-n, and when the decoder output is bit 1, the indicator is turned on, and when the decoder output is bit 0, the indicator is turned off. Next, the operation of the embodiment shown in FIG. 7 will be explained with reference to the operation flow diagram shown in FIG. First, in the initial state, each circuit section is in a stopped state, and when either the selection up switch 26 or the selection down switch 28 provided on the operation section 22 is turned on, this on operation is determined in step S1. The operation starts, and in step S2, the count value N of the count decoder 42 is set to N=1 as an initial setting. When N=1, count decoder 4
The output D1 of No. 2 becomes bit 1, so the display section 36-1 lights up first at the start of operation. [0022] Next, when the selection up switch 26 is operated, the operation of the selection up switch 26 is performed in step S3.
, and with a single operation of the selection up switch 26
is incremented by one, so count decoder 4
The output of No. 2 is transferred from Dl to D2, and the display section 36-2 is switched to a lighting display. On the other hand, if the selection down switch 28 is operated, the operation of the selection down switch 28 is determined in step S5, and the process proceeds to step S6, where N is decreased by one and the output of the count decoder 42 in the initial state is changed from D2 to the last Dn. Then, the display 36-n changes to a lighting state. [0023] By operating the selection up switch 26 or the selection down switch 28, the display section 24 in FIG.
After switching the display to light up the display of the target operation function among the multiple operation functions as shown in , press the execution switch 3 to set the selected function.
Manipulate 0. The execution switch 30 is operated in step S.
It is determined in step S7, and the process proceeds to step S8, where the corresponding function settings are performed. For example, if the output D2 of the count decoder 42 is set to bit 1 due to the operation of the selection up switch 26, the AND gate 46-2 is set to the allowable state by the operation of the execution switch 30, and an enable signal is given to the function setting circuit 50-2. and enables the operation function preset in the function setting circuit 50-2. The function setting circuits 50-1 to 50-n realize a control function based on the contents of the switch table 3b shown in FIG. [0024] On the other hand, if you wish to cancel a function that has already been set, operate the cancellation switch 32 while selecting the display section of the function to be canceled using the selection up switch 26 or the selection down switch 28. The operation of the release switch 32 is determined in step S9, and the process advances to step SIO to release the setting state of the selected function. [0025] When the function setting in step S8 or the setting cancellation in step SIO is completed, the process advances to step Sll.
Determine whether the operation is completed or not, and if it is not completed, go to step S again.
The process returns to step 3 to prepare for the next operation, and if it is determined that the operation has ended, the series of processes ends. The termination in this step Sll may be determined by determining whether the execution switch 30 and the release switch 32 are not operated for a certain period of time or more, or by determining the termination from simultaneous operation of the selection up switch 26 and the selection down switch 28. Good too. [0026] In the embodiment shown in FIG. 7, there are two selection switches consisting of a selection up switch 26 and a selection down switch 28, but by setting the selection direction of the display section to one direction, the selection switch may be combined into one. Also,
Selection up switch 26 or selection down switch 28
The operation is started by one of the operations, but the type of switch is not particularly limited, and the selection up switch 26,
The operation may be started by operating any one of the selection down switch 28, execution switch 30, or release switch 32. This point is the same when stopping the operation using a timer, and when none of the four switches is operated within a certain period of time, the operation is stopped. [0027] Furthermore, in the embodiment of FIG. 1, a case will be taken as an example in which the switch data of the start cutoff switch and the transfer stop switch are forcibly rewritten by operating the non-interlocking switch 6 as shown in FIG. However, a non-interlocking relay that is activated by operating the non-interlocking switch 6 is provided, and the relay contacts are provided in the interlocking control circuit 7 and the transfer circuit 8, respectively, and interlocking control is forcibly controlled by opening the relay contact. Output and redirected output may be prohibited. [0028] Also, although the above embodiments take a fire receiver as an example, the present invention can be applied as is to any appropriate alarm receiver such as a theft receiver. [0029]

[Effects of the Invention] As explained above, according to the present invention, by operating the non-interlocking switch when starting up the alarm receiver by turning on the power, external outputs such as interlocking control and mobile signal output are ensured. Can be prevented from fire door, release,
It is possible to prevent erroneous control of shutters, automatic notification devices that notify the fire department in the event of a fire, etc.

[Brief explanation of the drawing]

FIG. 1: Configuration diagram of an embodiment of the present invention

[Fig. 2] An explanatory diagram of a switch table provided in the fire receiver of the present invention.

[Figure 3] Operation flow diagram when powering on in Figure 1

[Figure 4]
Operation flow diagram showing the normal monitoring process in Figure 3

[Fig. 5] An explanatory diagram of the external appearance of the fire receiver of the present invention. [Fig. 6] An explanatory diagram of the operating section with the door shown in Fig. 6.

[Figure 7] Switch control circuit diagram of the operation unit in Figure 6

[Figure 8] Operation flow diagram of the switch control circuit in Figure 7

[Explanation of symbols]

1: CPU 2: Fire reception circuit 3: Memory section 3a: Matrix table 3b: Switch table 4: Display section 5: Operation section 6: Non-interlocking switch 7: Interlocking control circuit 8: Transfer circuit 9: External equipment operation confirmation circuit 10: Fire receiver 12: Function display section 14: District display section 16.20, 22: Operation section 18: Switch door 24: Display section 26: Selection up switch 28: Selection down switch 30: Execution switch 32: Cancellation switch 36 -1 to 36-n: Display 40: Selection circuit 42: Count decoder 44: OR gates 46-1 to 46-n, 48-1 to 48-n: AND gates 50-1 to 50-n: Function setting circuit 100: Fire detector 200: External device

[Figure 3]

[Figure 8]

Claims (2)

[Claims] Claim 1: In an alarm receiver equipped with an external output mode that outputs a signal to the outside in conjunction with fire detection that can be set and canceled by switch operation, the external output mode is activated when the power is turned on. An alarm receiver characterized by being provided with a prohibition means for prohibiting signal output to the outside based on settings. 2. The alarm receiver according to claim 1, wherein the prohibiting means detects an operation of the non-interlocking setting switch at startup by turning on the power, and controls an external device based on the setting of the external output mode. , and an alarm receiver that prohibits shifting output based on the setting of a shifting output mode.