JP2823961B2 - Alarm receiver - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an alarm receiver for controlling an external device or transmitting a notification signal in association with detection of an abnormality such as a fire.

[0002]

2. Description of the Related Art Conventionally, for example, in a fire receiver, a control function for operating an externally installed fire door or the like in conjunction with a reception alarm of a fire detection signal, or a fire station or the like to automatically detect the occurrence of a fire. An output function of a transfer signal for reporting is provided. The interlocking control and transfer output of these external devices can be set by switch operation, and the setting can be canceled, and the setting or cancellation of the interlock control mode and the transfer output mode can be made as necessary by the judgment of the manager. Has been done.

[0003]

However, in such a conventional alarm receiver, the installation of fire alarm equipment in a building or the like is not completely completed, for example, a site where the receiver is interlocked and controlled. In a state where the equipment such as the fire door release has not been installed, the power of the installed receiver may be turned on to check the adjustment. At this time,
The signal line from the receiver to the sensor and the confirmation line from the equipment such as fire door, release, shutter, etc. to the receiver may be mis-wired. And the transfer output mode is set, the interlocking control of the external device and the transfer output are performed by mistake.For example, if the fire door, the release, the shutter, etc. are suddenly linked and controlled, a personal injury May lead to

[0004] The present invention has been made in view of such a conventional problem, and a signal from a receiver to an external device is set even when the apparatus is set in an interlocking control mode or a transfer output mode at the time of start-up upon power-on. An object of the present invention is to provide an alarm receiver that can reliably prevent output.

[0005]

First, the present invention comprises a control means for setting an external output mode for outputting an output signal to the outside in conjunction with the detection of a fire at the time of start-up by turning on the power, and shifting to a monitoring process. Alarm receiver. In the present invention for such an alarm receiver, the control means includes:
If the operation of the non-interlocking setting switch is detected at the time of startup by turning on the power, the non-interlocking mode is set, signal output to the outside based on the external output mode is forcibly prohibited, and the process proceeds to monitoring processing. It is characterized by the following. Specifically, the control unit forcibly prohibits the interlocking control of the external device based on the setting of the interlocking control mode and the transfer output based on the setting of the transfer output mode by setting the non-interlocking mode. The non-interlocking setting switch is provided inside the receiver.

[0006]

According to the alarm receiver of the present invention having such a configuration, at the time of start-up by turning on the power, for example, by operating the non-interlocking setting switch, if the interlocking control mode or the transfer output mode is set. Even if it is set, operation in these external output modes is forcibly forbidden, accidents can be prevented by accidentally operating even if the terminal equipment is installed or adjusted, and handling is safe. Can be.

[0007]

FIG. 1 is a block diagram showing an embodiment of the present invention, taking a fire alarm system as an example. In FIG. 1, 1
Reference numeral 0 denotes a fire receiver, which has a built-in CPU 1 as a control means. For the CPU 1, a fire receiver circuit 2, a memory unit 3, a display unit 4, an operation unit 5, an interlock control circuit 7, a transfer circuit 8 and an external device operation check circuit 9 are provided. The fire detector 100 is connected to the fire receiving circuit 2 via a signal line L1. The interlocking control circuit 7 has a control line L
2, a disaster prevention device such as a fire door latch release is connected as the external device 200. The external device operation check circuit 9 is connected to the external device 200 via a check line L4. Further, the output of the transfer circuit 8 is provided to an automatic notification device using a telephone line via a signal line L3.

The memory unit 3 stores a matrix table 3a used for interlock control and a switch table 3b for registering a switch setting mode by operating various switches provided on the operation unit 5. In the matrix table 3a, for example, the correspondence relationship between the fire occurrence location determined by the sensor line and the external device 200 to be subjected to the interlocking control is set in advance, and the external device to be interlocked is read using the fire occurrence location as an address pointer. The interlocking control circuit 7 performs interlocking control for outputting a control signal to the external device 200.

The switch table 3b has, for example, the table structure shown in FIG. 2, and stores on / off data indicating a switch setting state corresponding to, for example, a transfer stop switch, a start / stop switch for canceling interlocking control, and the like. 1 indicates a function setting state, and 0 indicates a function setting canceling state. And CP
U1 receives a fire signal when the matrix table 3a is received.
Necessary control is performed with reference to the switch table 3b.

Referring again to FIG. 1, in the present invention, a non-interlocking switch 6 is provided as means for newly prohibiting external output from the CPU 1. CPU1
By detecting the operation state of the non-interlocking switch 6 at the time of start-up by turning on the power, the state of the switch for setting and canceling the interlocking control mode for outputting a signal to the outside in response to a fire reception and the transfer output mode is changed. It has the function of forcibly controlling. For example, with regard to the start / stop switch which inhibits the interlock control, the power is turned on while the non-interlock switch 6 is operated, so that the switch setting state is forcibly enabled even if the start / stop switch is in the setting release state, The interlocking control of the external device 200 for the fire reception can be prohibited. Specifically, even if the ON / OFF data of the start / stop switch shown in FIG. 2 is OFF data 0, the power is turned on while the non-interlocking switch 6 is operated, so that it is forcibly rewritten to ON data 1. Will be.

The same applies to the transfer stop switch. Even when the transfer stop switch is not operated and the ON / OFF data is OFF data 0, the power is turned on while the non-interlock switch 6 is operated. By doing so, the data is forcibly rewritten to ON data 1. FIG. 3 is a flowchart showing a control process performed by the CPU 1 shown in FIG. When the power of the fire receiver 10 is turned on and started, the CPU 1 starts processing by a power-on start, and firstly, a step (hereinafter, “step” is omitted) S1
To check if the non-interlocking switch 6 is on. If the non-interlock switch 6 is on, the process proceeds to S2 to set the non-interlock mode. Specifically, the start / stop switch and the transfer stop switch of the switch table 3b are set to ON data 1. For this reason, in the state where the process has shifted to the normal monitoring process in S3,
Even if a fire signal is received from the fire detector 100, the setting mode of the start / stop switch and the transfer stop switch is valid, so that the interlock control and the transfer output to the external device are not performed.

FIG. 4 is a flowchart showing the contents of the normal monitoring process of FIG. In FIG. 4, first, the presence or absence of a fire is monitored in S1. When a fire is received, the process proceeds to S2, where matrix data is read from the matrix table 3a, and an external control device to be linked is specified according to the fire occurrence location. I do. Subsequently, it is checked in step S3 whether or not the transfer is stopped. If the transfer is not stopped, the transfer relay provided in the transfer circuit 8 is turned on in step S4. Since the transfer is forcibly stopped, the transfer relay is not turned on in S4.

Subsequently, in S5, it is checked whether or not the main sound is stopped. If the switch data of the main sound stop switch is off data 0, the main sound is sounded in S6. If the switch data is on data 1, the flow proceeds to S7. In step S7, it is checked whether or not the start / stop switch for canceling the interlock is on. If the switch is off, the process proceeds to step S8 to generate the interlock control output. Since the switch data of the cutoff switch is forcibly set to ON data 1, the interlocking control output in S8 is not performed.

FIG. 5 is an external view of the fire receiver 10 shown in FIG. In FIG. 5, a function display unit 12 and a district display unit 14 are provided on the panel screen of the fire receiver 10 from the top,
The function display section 12 representatively displays the overall function display of the receiver including the fire alarm display. The district display section 14 displays the name of the district determined for each sensor line on the nameplate, and displays a corresponding district light when a fire is received.

An operation section 16 is provided following the district display section 14. The operation section 16 has a district sound stop switch for stopping the ringing of the district bell and a district sound stop release for releasing the stopped state of the district bell. A switch, a sound stop switch for stopping the main sound of the receiver (however, if a fire signal is received again after the stop, the main sound sounds) is provided. An operation unit 20 having a switch door 18 is provided below the operation unit 16.
In this embodiment, the operating device of the present invention is provided for the second operating unit 20. Further, the non-interlocking switch 6 shown in FIG. 1 is installed inside the fire receiver 10, and the front panel is opened to operate the saddle interlocking switch 6.

FIG. 6 shows the operation unit 20 of FIG. 5 taken out. The operation unit 20 is divided into an operation unit 22 and a display unit 24. The operation unit 22 has a selection up switch 2
6, four switches, a selection down switch 28, an execution switch 30, and a release switch 32 are provided. Display unit 2
Reference numeral 4 denotes nine display units 36-1 to 36-3 in this embodiment.
6-9 are provided, and the setting function items are displayed on the right display unit of each of the display units 36-1 to 36-9. Specifically, release of accumulation, stop of obstacle sound, stop of transfer,
Nine operating functions of start-up / shut-down, test restoration, fire test, standby power test, main sound stop (fire alarm) and main sound stop (smoke prevention) are displayed. The nine operating functions will be described in more detail as follows. (1) Release of storage The storage function of the receiver is released and the fire alarm display can be displayed immediately. (2) Stopping the obstacle sound Stop the obstacle sound completely. Even if the failure signal is received again after the stop, the ringing is not performed again. (3) Transfer stop The output of the transfer signal to the outside is shut off. (4) Start-up cut-off The operation signal to interlocking equipment such as smoke prevention equipment is cut off. (5) Test recovery If a fire occurs during the test, the recovery operation is performed once after about 2 seconds. (6) Fire test Tests whether the receiver can operate normally when a fire signal is received. In addition to the automatic fire test performed by automatically selecting a sensor line, a fire test in which a specific line is specified can be performed. (7) Backup power supply test Check the power supply capacity of the backup power supply. (8) Shut down the main sound (fire alarm) The main sound of the receiver that sounds in response to an alarm from the fire monitoring sensor is stopped. (9) Main sound stop (smoke prevention) The main sound of the receiver is stopped by the alarm signal from the fire detector for control.

FIG. 7 is a circuit diagram of an embodiment showing a switch control circuit of the operation unit 20 of FIG. 7, reference numeral 40 denotes a selection circuit. The selection circuit 40 is provided with the selection up switch 26, the selection down switch 28, the execution switch 30, and the release switch 32 shown in FIG. The selection circuit 40 has a count decoder 42,
Select up switch 26 is applied to an UP terminal that specifies the up operation of count decoder 42, and the output of select down switch 28 is applied to a DOWN terminal that specifies the down operation of count decoder 42.

Further, the outputs of the selection up switch 26 and the selection down switch 28 are supplied to a clock terminal CLK for a count operation of a count decoder 42 via an OR gate 44. The count decoder 42 counts down or up counts the count clock from the OR gate 44, decodes the binary output of the counter, and sequentially selects and outputs it to output terminals corresponding to the plurality of display units shown in FIG. And the resulting decoder.

In this embodiment, the count decoder 4
2 generates a selection output which becomes bit 1 sequentially at the decoder terminals D1 to Dn. The output of the count decoder 42 is supplied to AND gates 46-1 to 46-n and AND gates 48-1 to 48-48.
-N. AND gates 46-1 to 46
The output of the execution switch 30 is connected to the other input of -n. The outputs of the release switch 32 are connected to the other inputs of the AND gates 48-1 to 48-n.

Outputs of the AND gates 46-1 to 46-n are given as enable signals to function setting circuits 50-1 to 50-n, and outputs of the AND gates 48-1 to 48-n are output to the function setting circuit 50-n. 1 to 50-n are provided as disable signals. Function setting circuits 50-1 to 50
For example, -n is provided with circuit means for setting a function corresponding to an operation item as shown in the display unit 24 in FIG. 6, and upon receiving a enable signal, a preset function is enabled and disabled. When the signal is received, the set function is canceled.

Further, the outputs of the count decoder 42 provided in the selection circuit 40 are given to the display units 36-1 to 36-n, and the display unit is turned on when the decoder output is bit 1 and turned off when the bit is 0. Next, the operation of the embodiment of FIG. 7 will be described with reference to the operation flowchart of FIG. First, in an initial state, each circuit unit is in a stopped state, and a selection up switch 26 or a selection down switch 28
Is turned on, the operation is started in step S1 and the operation is started.
The count value N of the count decoder 42 is initially set as
Is set to N = 1. When N = 1, the output D1 of the count decoder 42 becomes bit 1, so that when the operation starts, the display section 36-1 is first turned on.

Next, assuming that the selection up switch 26 is operated, the operation of the selection up switch 26 is performed in step S3.
, And N is determined by one operation of the selection up switch 26.
Is incremented by one, so that the count decoder 4
The output of No. 2 is shifted from D1 to D2, and is switched to the lighting display of the display unit 36-2. 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. The display switches to the lighting state of the display 36-n.

The operation of the selection up switch 26 or the selection down switch 28 causes the display unit 24 shown in FIG.
When the display is switched so that the display section of the target operation function among the plurality of operation functions is turned on as shown in FIG. 4, the execution switch 3 is set to set the selected function.
Operate 0. The operation of the execution switch 30 is performed in step S
Then, the process proceeds to step S8 where the corresponding function setting is performed. For example, when the output D2 of the count decoder 42 is bit 1 by the operation of the selection up switch 26, the AND gate 46-2 is enabled by the operation of the execution switch 30, and the enable signal is supplied to the function setting circuit 50-2. Then, the operation function preset in the function setting circuit 50-2 is validated. The function setting circuits 50-1 to 50-n realize control functions based on the contents of the switch table 3b shown in FIG.

On the other hand, when it is desired to release the function that has already been set, the release switch 32 is operated while the display of the function to be released is selected by the selection up switch 26 or the selection down switch 28 in the same manner. The operation of the release switch 32 is determined in step S9, and the process proceeds to step S10 to release the setting state of the selected function.

When the function setting in step S8 or the setting release in step S10 is completed, the process proceeds to step S11,
It is determined whether or not the operation has been completed.
Returning to step 3, in preparation for the next operation, if it is determined that the operation has been completed, the series of processing ends. The end determination in step S11 may be made by determining whether the execution switch 30 and the release switch 32 are not operated for a certain period of time, or by determining the end from the simultaneous operation of the selection up switch 26 and the selection down switch 28. Is also good.

In the embodiment shown in FIG. 7, two selection switches including a selection up switch 26 and a selection down switch 28 are provided. May be one. Also,
Select up switch 26 or Select down switch 28
The operation is started by one of the operations described above, but the type of the switch is not particularly limited.
The operation may be started by operating any of the selection down switch 28, the execution switch 30, and the release switch 32. The same applies to the case where the operation is stopped by the timer. When none of the four switches is operated within a predetermined time, the operation is stopped.

Further, in the embodiment of FIG. 1, a case where the switch data of the start / stop switch and the transfer stop switch are forcibly rewritten by operating the non-interlocking switch 6 as shown in FIG. 2 is taken as an example. However, a non-interlocking relay operated by the operation of 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. The output and the transfer output may be prohibited.

Although the above embodiment has been described with reference to a fire receiver as an example, the present invention can be applied to an appropriate alarm receiver such as a stolen receiver.

[0029]

As described above, according to the present invention, when the alarm receiver is started up by turning on the power, the non-interlocking switch is operated to ensure the external output such as the interlocking control and the transfer output. Can be prevented, fire door, release,
It is possible to prevent erroneous control of a shutter and an automatic notification device for notifying a fire engine during a fire.

[Brief description of the drawings]

FIG. 1 is a configuration diagram of an embodiment of the present invention.

FIG. 2 is an explanatory diagram of a switch table provided in the fire receiver according to the present invention.

FIG. 3 is an operation flowchart when the power supply is turned on in FIG. 1;

FIG. 4 is an operation flowchart showing a normal monitoring process of FIG. 3;

FIG. 5 is an explanatory view of the appearance of a fire receiver according to the present invention.

FIG. 6 is an explanatory view of an operation unit having a door shown in FIG. 6;

FIG. 7 is a switch control circuit diagram of the operation unit in FIG. 6;

8 is an operation flowchart of the switch control circuit of FIG. 7;

[Explanation of symbols]

 1: CPU 2: Fire receiving circuit 3: Memory section 3a: Matrix table 3b: Switch table 4: Display section 5: Operation section 6: Non-interlocking switch 7: Interlock control circuit 8: Transfer circuit 9: External device operation check 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: Release switch 36 -1 to 36-n: Display 40: Selection circuit 42: Count decoder 44: OR gate 46-1 to 46-n, 48-1 to 48-n: AND gate 50-1 to 50-n: Function setting circuit 100: Fire detector 200: External device

──────────────────────────────────────────────────続 き Continued on front page (58) Field surveyed (Int. Cl. ⁶ , DB name) G08B 17/00

Claims (3)

(57) [Claims] 1. An alarm receiver comprising a control means for setting an external output mode for outputting an output signal to the outside in conjunction with a fire detection at the time of start-up by turning on a power supply and shifting to a monitoring process. The control means sets a non-interlocking mode when an operation of a non-interlocking setting switch is detected at the time of start-up by turning on the power, and forcibly prohibits an external signal output based on the external output mode for monitoring. An alarm receiver which shifts to processing. 2. The alarm receiver according to claim 1, wherein the control means sets the non-interlocking mode, thereby controlling the interlocking control of the external device and the notification output mode based on the setting of the interlocking control mode. An alarm receiver forcibly prohibiting a transfer output based on a setting. 3. The alarm receiver according to claim 1, wherein the non-interlocking setting switch is provided inside the receiver.