JP3862107B2 - Disaster prevention monitoring system - Google Patents

Description

[0001]
BACKGROUND OF THE INVENTION
The present invention relates to a disaster prevention monitoring system for centrally monitoring a plurality of distributed relay boards connected to a receiver via a transmission line, and in particular, when each receiver stops functioning, each relay board is in a distributed mode. The present invention relates to a disaster prevention monitoring system which is shifted and independently controlled.
[0002]
[Prior art]
Conventionally, in disaster prevention monitoring systems that centrally monitor a plurality of distributed relay boards connected to a receiver via a transmission line, fire detectors and smoke control devices are connected to each relay board and distributed. Monitoring and control of fire etc. is performed, and the receiver centrally performs setting management of switch information such as interlock control for each relay panel and display of abnormal reports such as fire detected by the relay panel.
[0003]
For this reason, when the receiver is functioning normally, each relay panel is set to the monitoring control state in the centralized processing mode that determines the setting state of each switch including the interlocking switch according to the switch information instructed from the receiver.
For example, in linked control, each relay panel stores the correspondence between the link source terminal and the link destination terminal, and when a terminal connected to itself issues a report, it is linked from the stored correspondence relationship. The destination terminal is discriminated, and braking control of the interlocking destination terminal is performed by exchanging transmissions between the relay boards. When the interlock stop switch is operated at the receiver, each relay panel does not send a control signal to the interlocking destination terminal even if the terminal reports.
[0004]
On the other hand, if the receiver function is lost due to interruption of the main power supply, standby power supply, etc. of the receiver or failure of the transmission function of the receiver, each relay panel automatically determines that the receiver does not exist. In response to an instruction from the receiver, for example, even if the interlocking is stopped, the interlocking stop is canceled based on the switch information specific to the relay panel that has been set in advance. Switching to a distributed processing mode that enables effective judgment control is performed.
[0005]
[Problems to be solved by the invention]
However, in such a conventional disaster prevention monitoring system, for example, when the building-specific data for the receiver or the ROM of the receiver main program is replaced, the receiver is turned off once. There is a problem that the relay board recognizes the abnormality of the receiver and enters the distributed processing mode to automatically cancel the interlock stop etc. set on the receiver side.
[0006]
In particular, at the time of construction, the possibility of malfunction is high because the system is incomplete, and when a false alarm is received at the relay panel, the interlock stop is canceled by switching to the distributed processing mode, and interlock control is performed. There is a problem that will be performed. Furthermore, although the installation of the relay panel is completed at the time of construction, the operation of the relay panel may be checked without the receiver installed. In such a case, the distributed processing mode due to the absence of the receiver is set, and when a false alarm is received by the relay panel, the smoke control device and the district sound device are controlled in conjunction, and the interlocking stop cannot be stopped. there were.
[0007]
The present invention has been made in view of such a conventional problem, and is a disaster prevention monitoring system that can arbitrarily select whether or not to shift to a distributed processing mode unique to a relay panel when a receiver function is stopped. The purpose is to provide.
[0008]
[Means for Solving the Problems]
In order to achieve this object, the present invention is configured as follows. First, the present invention
A disaster prevention monitoring system that centrally monitors a plurality of relay boards that perform disaster prevention monitoring control that is distributed and connected to a receiver via a transmission line.
In the present invention for such a disaster prevention monitoring system, when the abnormality of the receiver is determined in the relay panel, the centralized processing mode instructed from the receiver is canceled to determine the predetermined distributed process specific to the relay panel When the mode is changed to the distributed processing mode and the distributed processing mode is changed, if the distributed processing prohibition mode is set by the instruction from the receiver or the own switch setting, the relay panel processing prohibits the change to the distributed processing mode. The receiver is provided with a receiver processing unit that instructs the relay panel to set and cancel the distributed processing prohibition mode.
[0009]
For this reason, when stopping the function of the receiver due to power shut-off, etc., if you want to maintain the monitoring control state of the relay panel in the centralized processing mode set by the receiver, for example, the interlock stop state, before stopping the receiver function If the relay panel is instructed to set the distributed processing prohibition mode, even if the receiver function is stopped, the release of the interlock stop by prohibiting the relay panel from changing to the distributed processing mode is prohibited. Inadvertent interlocking control of the device can be reliably prevented.
[0010]
In addition, in situations where the receiver at the time of construction is not installed, the distributed processing prohibition mode can be set by operating the switch provided on the relay panel, and it is included in the distributed processing mode even if no receiver is installed. It is possible to easily set the status of monitoring control such as no interlocking stop as necessary.
Specifically, a periodic check reception processing unit and a processing mode control unit are provided as the relay panel processing unit of the relay panel. The periodic check reception processing unit receives the periodic check message from the receiver, and determines and displays an abnormality in the receiver when the periodic check message cannot be received normally.
[0011]
The processing mode control unit sets the monitoring control status of the centralized processing mode instructed by the receiver when the periodic check message is received normally, and when the periodic check reception processing unit determines that the receiver is abnormal The central processing mode setting is canceled and the setting is changed to the monitoring control state of the distributed processing mode set in advance, and the distributed processing prohibition mode instructed by the receiver is set when changing the setting to the distributed monitoring mode. If it is, changing the setting to the distributed processing mode is prohibited.
[0012]
In addition, the receiver processing unit of the receiver transmits a periodic check message to the relay panel at regular intervals, and when the response message is not obtained, a periodic check transmission processing unit that determines and displays the abnormality of the relay panel, and the relay panel Is provided with a prohibition mode instruction unit for instructing the setting of the distributed processing prohibition mode.
The prohibition mode instructing unit of the receiver sets the prohibition mode valid time for enabling the distributed state prohibition mode, and in response to this, the processing mode control unit of the relay panel monitors the prohibition mode effective time instructed by the receiver. When the valid time elapses, the setting of the distributed processing prohibition mode is canceled. In this way, by setting the effective time of the distributed processing prohibition mode in advance, it is possible to prohibit the transition to the distributed processing mode for the required time, and then automatically enter the distributed processing mode and monitor control by the repeater alone Can do.
[0013]
The periodic check transmission processing unit of the receiver transmits the switch information necessary for setting the monitoring control of the central processing mode by the periodic check message, and the processing mode control unit of the relay panel transmits the central processing mode of the central processing mode transmitted from the receiver. Based on the switch information, the switch position provided on the relay panel is set, and when a receiver abnormality is determined, each switch position is set and changed based on the switch information in the distributed processing mode.
[0014]
In this way, by including information related to the centralized processing mode switch settings in the periodic check message from the receiver, as long as the receiver is functioning normally, the latest switch information settings set by the receiver are always set. Can be reflected in the relay panel.
The processing mode control unit of the relay panel stores and holds information on the current switch position when changing the setting of each switch position based on the switch information of the distributed processing mode, and forcibly operates the distributed processing mode by its own switch operation. It returns to the switch information stored and retained when. As a result, when the distributed processing mode is canceled, it is possible to return to the previous centralized processing mode or the monitoring control processing state set with the switch, and there is no trouble of resetting or the like.
[0015]
Here, the distribution processing mode of the relay panel is an interlocking control mode that controls external devices in conjunction with each other when an abnormality is identified. When the dispersion processing prohibition mode is set, changing to the interlocking control mode is prohibited. To do.
[0016]
DETAILED DESCRIPTION OF THE INVENTION
FIG. 1 is a system configuration diagram of a disaster prevention monitoring system according to the present invention. In FIG. 1, a main line 2 functioning as a trunk line is drawn out from a receiver 1 having an address # 0 in a loop shape, and n relays indicated by addresses # 1 to #n distributed on the main line 2, for example. Panel 3 is connected. Each of the relay boards 3 performs basic monitoring and control signal processing for disaster prevention monitoring such as fire, while the receiver 1 generates processing associated with the setting of processing modes and detection of abnormalities for each relay board 3. Centralized processing such as centralized display of information.
[0017]
FIG. 2 is a functional block diagram of the receiver 1 and the relay panel 3 of FIG. The receiver 1 is provided with a receiver MPU 5, and the functions of the periodic check transmission processing unit 6 and the distributed processing prohibition mode setting unit 7 are realized by program control of the receiver MPU 5. The periodic check transmission processing unit 6 transmits the periodic check message by sequentially specifying the addresses # 1 to #n of the relay panel 3 connected to the trunk line 2 at regular intervals determined by the transmission timer. On the basis of the reception of the response message from the relay panel 3, whether or not the relay panel 3 connected to the main line 2 is functioning normally is checked.
[0018]
The distributed processing prohibition mode setting unit 7 issues an instruction to prohibit the change to the distributed processing mode when the relay panel 3 determines that the receiver 1 is abnormal. Further, in addition to the functions of the periodic check transmission processing unit 6 and the distributed processing prohibition mode setting unit 7, the receiver MPU 5 displays an alarm based on reception of notification information due to detection of an abnormality such as a fire on the relay panel 3 side. A function for performing the receiving process, a test function, and the like are provided.
[0019]
An operation unit 9 is provided for the receiver MPU 5, a mode switch 11 for canceling the setting of the distributed processing prohibition mode corresponding to the distributed processing prohibition mode setting unit 7 provided in the receiver MPU 5, and the distributed processing prohibition A time setting switch 10 for setting an effective time for enabling the mode is provided.
As the mode switch 11, in order to prevent the setting instruction of the distributed processing prohibition mode to the relay panel 3 from being performed unnecessarily, for example, using a PIN number input function provided in the receiver 1, a predetermined identification The distributed processing prohibition mode setting unit 7 can be activated to input the distributed processing prohibition mode setting instruction to the relay panel 3.
[0020]
The display unit 12 is provided in the receiver MPU5. The display unit 12 activates the distributed processing prohibition mode setting unit 7 by the mode switch 11 and the time setting switch 10 of the operation unit 9 in addition to displaying an abnormal alarm such as a fire based on the notification information from the relay panel 3, and the relay panel 3. When the distributed processing prohibition mode is set, the display indicating that the distributed processing prohibition mode is currently being set and the display of the effective time of the prohibition mode are performed.
[0021]
In addition, a voice synthesizer 13 is provided for the receiver MPU 5, and outputs a voice message related to an alarm associated with reception of notification information from the relay panel 3 and various voice messages associated with operation of the operation unit 9. For transferring external equipment to the MPU 5, a parallel transfer unit 14, a serial transfer unit 15, and a display board transmission unit 16 are provided.
The parallel transfer unit 14 outputs each bit output corresponding to n lines of the parallel n-bit data of the transfer data as a transfer signal. The serial transfer unit 15 outputs a serial data transfer signal corresponding to an interface such as RS-232C. Furthermore, the display board transmission part 16 performs the transfer display of the received information of the receiver 1 with respect to the disaster prevention display board 17 installed in the central administrator room.
[0022]
Further, the receiver MPU 5 is connected to the relay panel 3 by the main line 2 through the main line transmission unit 8. The main transmission unit 8 generates a message for the relay panel 3 according to a predetermined format such as a header, command, data, etc., and performs data transmission specifying the address of the relay panel 3 according to a predetermined communication protocol.
Next, the relay panel 3 will be described. The relay panel 3 is provided with a relay panel MPU 18, and the functions of the periodic check reception processing unit 19 and the processing mode control unit 20 are realized by program control thereof. The periodic check reception processing unit 19 receives the periodic check message transmitted from the receiver 1, creates a response message, and returns it. The periodic check reception processing unit 19 starts a timer that monitors the reception time until the next periodic check message every time a periodic check message is received from the receiver 1, and the receiver does not exceed the set time of this timer. When the periodic check message cannot be received from 1, it is determined that an abnormality has occurred in the receiver 1 and an abnormality is displayed. Abnormalities in which the periodic check telegram cannot be received from the receiver 1 side may be, for example, a stop due to power interruption of the receiver 1 or a disconnection of the main line 2.
[0023]
The processing mode control unit 20 sets each switch state according to the central processing mode setting information set by the receiver 1 when the periodic check message is normally received from the receiver 1 when the receiver is normal. is doing. On the other hand, when the periodic check reception processing unit 19 determines that the receiver is abnormal, it resets each switch information of the centralized processing mode that has been set up so far, and the inherent dispersion determined in advance for the relay panel 3. Change to processing mode switch information.
[0024]
Here, each switch information set in the processing mode of the relay panel 3 includes the following.
(1) Various interlocking stop switches such as interlocking for smoke prevention equipment
(2) District bell ringing stop switch
(3) Acoustic stop switch for fire, caution, gas leak, monitoring, failure, etc.
(4) Other equipment report stop switch such as serial report stop, parallel report stop, emergency broadcast interlocking stop, display panel report stop
(5) Relay panel status setting switch for test recovery, automatic determination, accumulation, delay release, etc.
Here, in these interlock stop switches, the interlock side is localized and the interlock stop side is non-localized. The state setting switch is localized on the state setting side and non-localized on the setting cancellation side. In the distributed processing mode of the relay panel 3, all the switches (1) to (5) are in the localization state.
[0025]
For this reason, when the processing mode control unit 20 determines the abnormality of the receiver 1 and makes a mode transition from the centralized processing mode to the distributed processing mode, all the switches that are non-localized in the centralized processing mode are on the localization side, that is, linked. Is changed to the side. Further, when the processing mode control unit 20 shifts from the central processing mode to the distributed processing mode, the current switch information is stored in a RAM (not shown) of the relay panel MPU 18.
[0026]
The switch information stored in the RAM can be used for resetting the switch information when the mode switch 23 provided in the operation unit 22 of the relay panel 3 forcibly releases the distributed processing prohibition mode and returns to the central processing mode. . In this case, the condition is that the receiver 1 is functioning normally.
For the relay panel MPU 18, a trunk transmission unit 21, an operation unit 22, a display unit 24, a serial transmission unit 25, a parallel transmission unit 26 and a display panel transmission unit 27 are provided. The operation unit 22 is provided with a mode switch 23 for setting / releasing the distributed processing prohibition mode by the relay panel 3 itself.
[0027]
For example, when the receiver 1 is not installed at the time of construction of the system, the distributed processing prohibit mode for prohibiting the transition to the distributed processing mode can be set by operating the mode switch 23 with the relay panel 3 alone. Of course, once the distributed processing prohibition mode is set, the mode switch 23 can be canceled. In addition, in this embodiment, two disaster prevention display panels 28 are connected to the display panel transmission unit 27.
[0028]
Further, a terminal transmission unit 29 and a terminal control unit 30 are provided for the relay panel MPU 18. Terminal transmission lines 31 a and 31 b are drawn out from the terminal transmission unit 29. For example, a fire detector 34 is connected to the terminal transmission line 31a via a repeater 33. The terminal transmission unit 29 performs polling by sequentially specifying the addresses of the repeaters 33 connected to the terminal transmission line 31a. When a fire is detected by the fire detector 34, the notification information is received as response information. To do.
[0029]
Usually, when a fire alarm is detected by the fire detector 34, an interrupt command is transmitted from the repeater 33 to the terminal transmission unit 29. Upon receiving this interrupt command, the terminal transmission unit 29 relays the fire report. When the device 33 is searched and the corresponding relay device is searched, the notification information is transmitted.
A terminal control line 32 drawn from the terminal control unit 30 is connected to a terminal device 36 such as a smoke prevention device or a district sound device via a repeater 35. In response to a terminal control instruction based on the reception result of the abnormal report by the relay panel MPU 18 of the terminal control unit 30, the control command specifying the repeater address is transmitted. Further, in the terminal device 36, since it is necessary to confirm the operation completion position when the control is activated as in the smoke prevention device, the signal detected by the limit switch or the like from the operation confirmation position is transmitted from the repeater 35. The terminal transmission unit 29 can be transmitted using the terminal transmission line 31b.
[0030]
The mode switch 11 of the receiver 1 and the mode switch 23 of the relay panel 3 may be configured to shift to the distributed processing prohibition mode by inserting a jig such as a connector as well as the one-shot switch and the lock switch. .
FIG. 3 is a flowchart of the distributed processing prohibition mode setting process for the relay panel 3 by the distributed processing prohibition mode setting unit 7 provided in the receiver MPU 5 of FIG. First, in step S1, a password that is a predetermined specific character is input using a password input function as an input operation for setting the distributed processing prohibition mode.
[0031]
In response to the input of the personal identification number, the distributed processing prohibition mode setting unit 7 is activated, and when it is determined in step S2 that the personal identification number is set in the distributed processing prohibition mode, the process proceeds to step S3 and the distributed processing prohibition mode for the relay panel 3 is performed. Perform the setting process. That is, the current connection status of the relay panel 3 stored in the memory of the receiver MPU 5 is referred to, the address of the connected relay panel is sequentially specified, and the message of the distributed processing prohibition command is transmitted. Note that the distributed processing mode may be set by connector connection instead of inputting the password.
[0032]
Subsequently, in step S4, a prohibition period timer for enabling the distributed processing prohibition mode is set as necessary and then started. In step S5, the time-up is monitored. By setting the prohibition period timer that enables the distributed processing prohibition mode, the distributed processing prohibition mode can be automatically canceled. Until it is determined in step S5 that the time is up, it is checked in step S6 whether there is an instruction to cancel the distributed processing inhibition mode.
[0033]
In such a setting state of the distributed processing inhibition mode, the display unit 12 of the receiver 1 displays that the current relay panel is in the distributed processing inhibition mode. When a display with a touch panel is used as the display unit 12, a distributed processing prohibit mode release switch may be displayed on the display screen. For this reason, the instruction to cancel the distributed processing prohibition mode in step S6 is based on a cancel switch displayed on the display unit, a cancel operation of the mode switch 11 provided in the operation unit 9 of FIG. 2, or a cancel command from the relay panel 3. There is either case.
[0034]
If it is determined in step S5 that the time is up before determining to release the distributed processing prohibition mode in step S6, the distributed processing prohibition mode is canceled in step S7. That is, the receiver 1 transmits a message including a distributed processing prohibition release command while sequentially specifying addresses to the relay panel 3 in which the distributed processing prohibition mode is set, so that the cancel processing is performed.
[0035]
In step S6, if a forced release instruction accompanying switch operation or switch operation of the relay panel 3 itself is determined, release processing of the distributed processing inhibition mode is performed in step S7. Here, in the case of a cancellation instruction from the relay panel 3, it is not necessary to transmit a cancellation command to the relay panel by a message, and only the cancellation process of the distributed processing prohibition mode in the receiver 1 is performed. In addition, the cancellation instruction of the distributed processing prohibition mode in step S6 is canceled not only for the cancellation switch and the cancellation command from the relay panel but also for the operation of a specific switch such as a fire determination switch provided in the operation unit 9 of the receiver 1. It may be determined that there is an instruction.
[0036]
FIG. 4 is a flowchart of the periodic check transmission processing by the periodic check transmission processing unit 6 provided in the receiver 1 of FIG. The receiver 1 first starts by setting a periodic check message transmission timer in step S1, and monitors the time-up of the transmission timer in step S2.
When the transmission timer expires, the transmission timer is reset in step S3, the current connection status of the relay panel 3 stored in the memory of the receiver MPU 5 is referred to, and the address is sequentially applied to the connected relay panel 3 Specify and send a periodic check message.
[0037]
Simultaneously with the transmission of the periodic check message, in step S5, a timer A for monitoring the response message time from the relay panel 3 is set and started. Subsequently, in step S6, it is checked whether or not a response message has been received from the relay panel 3. If a response message cannot be received before the timer A expires in step S7, the process proceeds to step S8 and timer A is set. After resetting, the counter X indicating the relay board abnormality is incremented by +1 in step S9.
[0038]
If the counter X is less than 2 in step S10, the timer A is set and started again in step S5. If a response message is not yet obtained, the counter X is 2 in step S9, and the counter X is set in step S10. After determining that the number is 2 or more and resetting the counter X in step S11, the relay panel abnormality display is performed for the relay panel that has not responded in step S12.
[0039]
If the response message is normally received from the relay panel in step S6 in response to the transmission of the periodic check message, the timer A is reset in step S13, the counter X is reset in step S14, and the response up to the present in step S15 It is checked whether or not reception is from a relay panel that has not been received, and if reception is from a relay panel that does not respond, cancellation of no response, that is, cancellation of an abnormal display of the relay panel response is performed in step S16. If it is not received from the relay panel without a response, the process is terminated.
[0040]
FIG. 5 is a flowchart of distributed processing prohibition mode setting processing by the processing mode control unit 20 provided in the relay panel MPU 18 of the relay panel 3 of FIG. First, when a message in the distributed processing prohibition mode is received from the receiver 1 in step S1, the process proceeds to step S4, and the distributed processing prohibition mode is set. Subsequently, when the distributed processing prohibition mode message is set to the effective time of the distributed processing prohibition mode, the process starts by setting the time indicated by the prohibition time timer in step S5, and monitors the time-up in step S6. is doing.
[0041]
Until the time is up in step S6, it is checked in step S7 whether there is an instruction to cancel the distributed processing inhibition mode. The cancellation instruction of the distributed processing inhibition mode in step S7 includes a cancellation command from the receiver 1, a cancellation switch by the mode switch 23 provided in the relay panel 3, and the like. If the prohibition time timer set in step S6 expires before the cancellation instruction is determined in step S7, the process proceeds to step S8 to cancel the distributed processing prohibition mode.
[0042]
On the other hand, if there is no message reception in the distributed processing prohibition mode in step S1, the process proceeds to step S2 to check whether or not the manual setting of the distributed processing prohibition mode is performed. At this time, if the distributed processing prohibition mode is set by the mode switch 23 provided in the relay panel 3, the process proceeds to step S3, and after transmitting a message of the distributed processing prohibition mode mode setting notification to the receiver 1. In step S4, the distributed processing prohibition mode is set.
[0043]
Also in this case, if the time setting of the distributed processing prohibition mode has been performed, it starts by setting the set time in the prohibition time timer in step S5, the time-up discrimination in step S6 and the distributed processing prohibition mode in step S7. When the time-up or release instruction is entered, the process proceeds to step S8 to release the distributed processing prohibition mode.
[0044]
If the time setting of the distributed processing prohibition mode is input when the setting notification by the manual operation of the distributed processing prohibition mode is performed to the receiver in step S3, the set time is also notified together with the message. Further, it is desirable that the switch input for manually setting the distributed processing prohibition mode determined in step S2 is performed by using a PIN number input function provided in the relay panel 3 as in the receiver 1 side.
[0045]
FIG. 6 is a flowchart of the reception process by the periodic check reception processing unit 19 provided in the relay panel 3 of FIG. In the relay panel 3, the timer B is set when the previous periodic check message is received in step S1, and the next periodic check message is received in step S2 before the timer B expires in step S3. It is determined whether or not.
[0046]
If the periodic check message is normally received before the timer B expires, the process proceeds to step S11, the timer B is reset and then restarted, and the counter Y used for counting the abnormality confirmation is reset in step S12. In step S13, a response message is transmitted to the receiver 1.
On the other hand, if the periodic check message is not received from the receiver 1 even if the timer B expires in step S3, the process proceeds to step S4, the timer B is reset and restarted, and then an abnormality is detected in step S5. The counter Y for confirmation is incremented by 1, and it is checked in step S6 whether the counter Y is 2 or more. At first, since the counter Y is 1, the process returns to step S1 to set and start timer B. Then, in step S2, the periodic check message is received again, and timer B is timed up in step S3.
[0047]
If the timer B is timed out in step S3 without receiving the second periodic check message, the timer B is reset in step S4, then the counter Y is incremented by 1 in step S5, and Y = 2. Since the counter Y is 2 or more in S6, the process proceeds to step S7 to reset the counter Y, and then the receiver abnormality determination display is performed in step S8.
[0048]
In step S9, the presence / absence of the distributed processing prohibition mode is checked. If the distributed processing prohibition mode is not set, the process proceeds to step S10, and the processing mode of the relay panel is changed to the distributed processing mode according to the determination result of the receiver abnormality.
On the other hand, when the distributed processing prohibition mode is set in the relay panel 3 through the processing flow for setting the distributed processing prohibition mode in FIG. 5, the transition to the distributed processing mode in step S10 is not performed, and the receiver 1 Even if an abnormality is determined, each switch information is set in the centralized processing mode set from the receiver 1 side.
[0049]
FIG. 7 is a flowchart of another embodiment by the periodic check reception processing unit 19 provided in the relay panel 3 of FIG. 2. In the processing of FIG. 6, a receiver abnormality is determined by a counter. In the seventh embodiment, a receiver abnormality is judged by a timer.
That is, the determination in the case where no periodic check message is received by the setting of timer B in steps S1 to S4 in FIG. 7 is the same as in FIG. 6, and after timer B is timed up in step S3, timer B is reset in step S4. In step S5, abnormality determination of the receiver is performed. Subsequently, the process proceeds to step S6, and after setting a time such as 3 minutes necessary for determination of abnormality confirmation to the timer C, for example, the time-up is monitored in step S7, and the processing from step S2 is repeated until the time is up. .
[0050]
If the periodic check message is not received even when the timer C expires, the timer C is reset in step S8, and then the presence / absence of the distributed processing prohibition mode is checked in step S9. If not, the distributed processing mode is set in step S10. Transition. If the setting of the distributed processing prohibition mode is determined in step S9, the transition to the distributed processing mode in step S10 is not performed.
[0051]
On the other hand, if the periodic check message is normally received in step S2, the timer B is reset in step S11, the timer C is reset in step S12, and a response message is transmitted to the receiver 1 in step S13. It becomes like this.
FIG. 8 shows details of the distributed processing mode shown in step S10 of FIGS. In the distributed processing mode of FIG. 8, first, switch information in a state before shifting to the distributed processing mode is stored in the RAM of the relay panel MPU 18 in step S1. Subsequently, the process proceeds to step S2, and all the non-localized switches for the various interlocking switches and state setting switches to be targeted are changed to the local position.
[0052]
As a result, the relay panel 3 shifts to the distributed processing mode. That is, the distributed processing mode is entered in which all of the various interlocking switches on the relay panel 3 side are in an interlocking state for abnormality determination of the receiver 1. When transitioning to the distributed processing mode, the release of the distributed processing mode is determined in a loop of step S3 and step S7.
In step S3, the reception of the periodic check message transmitted from the receiver 1 transmitted when the receiver 1 determined to be abnormal is restored and restarted is checked. Proceed to S4. Here, if the periodic check message from the receiver includes switch information of each interlocking switch and information setting switch that are the targets of the distributed processing mode of the relay panel, the switch information of the self that is in the distributed processing mode The switch information is changed from the previous distributed processing mode to the centralized processing mode in accordance with the switch information received from the receiver. The switch information from the receiver may not be included in the periodic check message, but a dedicated message for sending the switch information when the receiver 1 is activated may be used.
[0053]
When the switch information is matched with the switch information from the receiver in step S4, the process proceeds to step S5, the distributed processing mode is canceled, and a periodic check response message is transmitted to the receiver 1 in step S6. On the other hand, in step S7, it is checked whether or not a forced distributed processing mode release operation has been performed.
In the relay panel 3 of FIG. 2, since the mode switch 23 is provided in the operation unit 22, when the forced release operation of the distributed processing mode is performed by the mode switch 23, the forced release operation is determined in step S7. On the condition that the receiver is functioning normally, the process proceeds to step S8, the switch information stored in the RAM is read in step S1, and the switch information in the distributed processing mode is read from the RAM as the localization. Return to.
[0054]
When releasing the distributed processing mode by the automatic change to the switch information from the receiver in step S4 and the automatic setting by reading the switch information from the RAM accompanying the forced release in step S8 when releasing the distributed processing mode. It is possible to omit an artificial operation for restoring the switch information in the original central processing mode.
[0055]
FIG. 9 shows an embodiment of another system configuration of the disaster prevention monitoring system of the present invention. In this embodiment, the main line 2 and the sub line 4 are drawn from the receiver 1 in addition to the main line 2. Each of the relay boards 3 of addresses # 1 to #n is connected to each of them. In the disaster prevention monitoring system having a double cross ring configuration using the main line 2 and the sub line 4, the periodic check message is transmitted from the receiver 1 separately to the main line 2 and the sub line 4.
[0056]
That is, a periodic check message for the main line 2 is created and transmitted in the order of the relay panel addresses # 1 to #n. At the same time, a periodic check message dedicated to the sub-line 4 is created, for example, the reverse addresses #n to ## A periodic check message is transmitted to the sub-line 4 in the order of 1. Note that the switch information for the addresses # 1 to #n included in the periodic check message for the main line and the sub line has the same contents.
[0057]
Due to such double transmission of the periodic check message using the main line 2 and the auxiliary line 4, for example, even if the main line 2 is abnormal, the periodic check message can be received from the auxiliary line 4, and the reliability against the line fault is improved. . Of course, if the sub-line 4 is abnormal, a periodic check message can be received from the main line 2. Further, when the distributed processing mode is set on the receiver 1 side, a message of this mode setting command is transmitted from the main line 2 and the sub line 4 to the relay panel 3 side.
[0058]
FIG. 10 shows another embodiment of the disaster prevention monitoring system according to the present invention, characterized in that the main lines 2 and the sub lines 4 drawn from the receiver 1 are connected to the relay panels at the addresses # 1 to #n, respectively. And Also for the double ring configuration of the main line 2 and the sub line 4, by sending a dedicated periodic check message to each of the main line 2 and the sub line 4, the line which is normal with respect to the failure of the main line 2 or the sub line 4 It is possible to receive a check message from the system and improve the reliability of the system against a line fault.
[0059]
Further, as shown in FIG. 11, the system reliability can be improved in the same manner as in FIG. 9 even if the main line 2 and the sub line 4 are connected in order from addresses # 1 to #n of the relay panel 3.
The above embodiment is an example of a distributed disaster prevention monitoring system in which basic monitoring control is performed with relay boards arranged in a distributed manner and centralized display of each relay board is performed with a receiver. The present invention can be applied as it is to an appropriate system that discriminates an abnormality of a machine and changes the setting state of disaster prevention monitoring to a so-called distributed processing mode unique to the terminal side on the terminal side.
[0060]
【The invention's effect】
As described above, according to the present invention, even in a system that shifts to a distributed processing mode in which the interlock stop is automatically canceled on the relay panel side when the receiver stops functioning, before the receiver is stopped. By setting the distributed processing prohibition mode for the relay panel, even if the receiver is stopped, the relay panel side does not shift to the distributed processing mode that releases the interlock stop, but maintains the interlock stop state before the receiver stops. It is possible to prevent the control device from interlocking with the false alarm on the relay panel side, and to minimize the damage caused by the false alarm on the relay panel side during construction.
[0061]
In addition, even when only the relay panel is operated alone without installing the receiver when the system is installed, the distributed processing prohibition mode can be set by operating the switch provided on the relay panel itself, and the transition to the distributed processing mode is made. The release of the interlocking stop state due to is prohibited, and the operation test with the relay panel alone can be ensured without causing malfunction of the terminal device due to false alarms. Even if the distributed processing prohibit mode is set, if an abnormal situation such as a fire alarm occurs, the distributed processing prohibit mode can be easily canceled on either the receiver side or the relay panel side. The process mode can be promptly shifted, and a quick response can be taken by the interlock control of the control device.
[0062]
Furthermore, by setting the effective time of the distributed processing prohibition mode, the distributed processing prohibition mode is automatically canceled after the set time has elapsed, and the monitoring control function on the relay panel side is degraded due to forgetting to return to the prohibition mode. It can be prevented beforehand.
[Brief description of the drawings]
FIG. 1 is a system configuration diagram of the present invention.
2 is a functional block diagram of the receiver and repeater of FIG.
FIG. 3 is a flowchart of distributed processing prohibition mode setting processing by the receiver of FIG. 2;
4 is a flowchart of periodic check transmission processing by the receiver of FIG. 2;
FIG. 5 is a flowchart of distributed processing prohibition mode setting processing by the repeater of FIG.
6 is a flowchart of periodic check reception processing by the repeater of FIG. 2;
7 is a flowchart of another periodic check reception process by the repeater of FIG.
8 is a flowchart of the distributed processing mode in FIGS. 6 and 7. FIG.
FIG. 9 is a system configuration diagram having a double cross ring configuration with a main line and a sub line.
FIG. 10 is a system configuration diagram in which a ring configuration is formed by main lines and sub-lines.
FIG. 11 is a system configuration diagram having a double ring configuration with a main line and a sub-line.
[Explanation of symbols]
1: Receiver
2: Main line (main trunk line)
3: Relay panel
4: Sub line (sub trunk line)
5: Receiver MPU
6: Regular check transmission processor
7: Distributed processing prohibition mode setting section
8, 21: Trunk transmission section
9, 22: Operation unit
10: Time setting switch
11, 23: Mode switch
12, 24: Display section
13: Speech synthesis unit
14, 26: Parallel converter
15, 25: Serial converter
16, 27: Display panel transmission section
17, 28: Display panel
19: Regular check reception processing section
20: Processing mode control unit
29: Terminal transmission section
30: Terminal control unit
31a, 31b: Terminal transmission line
32: Control transmission line
33, 35: Repeater
34: Fire detector
36: Control equipment

Claims (5)

In a disaster prevention monitoring system for centralized monitoring by connecting a plurality of relay panels for disaster prevention monitoring control distributed to a receiver via a transmission line,
When determining an abnormality of the receiver in the relay panel, the centralized processing mode instructed from the receiver is canceled and changed to a predetermined distributed processing mode specific to the relay panel, and further, the distributed processing mode When the distributed processing prohibit mode is set by an instruction from the receiver or its own switch setting, a relay panel processing unit for prohibiting the change to the distributed processing mode is provided,
The receiver is provided with a receiver processing unit that instructs the relay panel to set and release the distributed processing prohibition mode ,
A periodic check reception processing unit that receives a periodic check message from a receiver in the relay panel processing unit of the relay panel, and determines and displays a receiver abnormality when the periodic check message cannot be received normally; and the periodic check When the message is received normally, the monitoring control state of the centralized processing mode instructed from the receiver is set, and when the receiver error is determined by the periodic check reception processing unit, the centralized processing mode is set. When the setting is canceled and the setting is changed to the monitoring control state of the distributed processing mode set in advance, and the distributed processing prohibition mode instructed from the receiver is set when changing the setting to the distributed monitoring mode. Includes a processing mode control unit that prohibits setting change to the distributed processing mode,
A periodic check transmission processing unit that transmits a periodic check message to the relay panel at a certain period to the receiver processing unit of the receiver, and determines and displays an abnormality of the relay panel when a response message is not obtained, and the relay A disaster prevention monitoring system , comprising: a prohibition mode instructing unit for instructing setting of a distributed processing prohibition mode on the panel .   The disaster prevention monitoring system according to claim 1, wherein the prohibition mode instruction unit of the receiver sets a prohibition mode valid time for validating the distributed processing prohibition mode, and the processing mode control unit of the relay panel includes the A disaster prevention monitoring system characterized by monitoring a prohibition mode valid time instructed by a receiver and canceling the setting of the distributed processing prohibition mode when the valid time has passed.   The disaster prevention monitoring system according to claim 1, wherein the periodic check transmission processing unit of the receiver transmits the switch information necessary for setting the monitoring control in the central processing mode by the periodic check telegram, The processing mode control unit sets a switch position provided on the relay panel based on the central processing mode switch information transmitted from the receiver, and determines the receiver abnormality when the switch of the distributed processing mode is determined. A disaster prevention monitoring system characterized in that setting of each switch position is changed based on information.   The disaster prevention monitoring system according to claim 1, wherein the processing mode control unit of the relay panel stores information on a current switch position when changing the setting of each switch based on the switch information of the distributed processing mode. A disaster prevention monitoring system characterized in that it retains and returns to the switch information stored and retained when the distributed processing mode is forcibly canceled by its own switch operation.   2. The disaster prevention monitoring system according to claim 1, wherein the distribution processing mode of the relay panel is an interlock control mode in which an external device is interlocked when an abnormality is determined, and the distributed processing prohibition mode is set. The disaster prevention monitoring system is characterized by prohibiting the change to the interlock control mode.

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