JP2989511B2 - Disaster prevention monitoring device - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a disaster prevention monitoring device that collects information from a terminal such as a fire detector and centrally manages a monitoring area, and more particularly, from a receiver to a terminal when starting up the device or replacing a terminal. The present invention relates to a disaster prevention monitoring device that performs initialization processing for

[0002]

2. Description of the Related Art In a disaster prevention monitoring apparatus of this type, when the receiver is turned on by a power-on start when the power of the receiver is turned on, (1) correct types of terminals (smoke detector, heat detection) Device, a sensor repeater, a control repeater, etc.) to check whether or not the terminal is connected, and (2) to check whether the address is duplicated and set in the terminal. An address duplication check and (3) an operation test for testing whether the terminal operates correctly are automatically performed.

[0003] In addition, when a terminal is newly connected or replaced with a new one during operation after startup,
The same initialization processing as (1) to (3) is performed for each terminal. In such a conventional disaster prevention monitoring device, when an important event such as a fire detection occurs during the initialization process of the terminal, the initialization process is automatically stopped,
The terminal is configured to perform a fire response process, and leave a terminal in which the initialization process has not been completed in a failure state.

[0004] In order to restart the initialization process for a terminal in a failure state due to the interruption of the initialization process, the receiver side manually specifies the address of the terminal and instructs the initialization process. , The initialization process is performed from the beginning, and the failure can be recovered.

[0005]

However, in the conventional disaster prevention monitoring device, when an important event such as a fire occurs during the initialization processing of the terminal, the initialization processing is automatically stopped, and a failure state is left. After the fire response processing is completed, the receiver needs to operate the receiver to restart the initialization processing by the monitoring personnel.However, it is impossible to request such special operations from the monitoring personnel. It is likely to be distracted and forget the restart operation. For this reason, there is a high possibility that the device will be operated with the initialization failure overlooked.
Since the address duplication check and the operation test are not completed normally, there is a possibility that reliability cannot be ensured.

The present invention has been made in view of such a conventional problem, and has been made to improve reliability by automating a restart process when an important event occurs during a terminal initialization process. It is intended to provide a disaster prevention monitoring device.

[0007]

In order to achieve this object, the present invention is configured as follows. First, according to the present invention, a transmission line drawn from a receiver (including a distributed processing panel in a distributed processing system) includes a sensor for detecting analog information such as smoke density and temperature associated with a fire, a remotely controlled control device, and the like. It is intended for a disaster prevention monitoring device that connects terminals and performs centralized monitoring.

According to the present invention, such a disaster prevention monitoring device compares the terminal type preset in the terminal with the type information in a ROM table prepared in advance when the device is started up,
In addition, an initialization processing unit that verifies the presence or absence of address duplication and shifts to a normal monitoring process when processing is normally completed, and when an important event such as a fire occurrence is detected during processing of the initialization processing unit, A processing interruption unit for interrupting the processing of the initialization processing unit and a restart processing unit for restarting the processing of the initialization processing unit after the processing for the event detection is completed are provided.

The initialization processing unit further monitors the detected terminal even when a new connection of the terminal or a replacement of the terminal is detected in the monitoring processing state after the normalization processing of all the terminals by starting the apparatus. Automatically specify and perform initialization processing. The processing interrupting unit interrupts the processing of the initialization processing unit when the terminal type preset for the terminal does not match or the address is duplicated, and the restart processing unit determines whether the terminal type does not match or the address is duplicated. When the cancellation is detected, the processing of the initialization processing unit is restarted.

The restart processing unit restarts the processing of the initialization processing unit when the connection of the corresponding terminal is detected in the address duplication detection state.
The initialization processing unit further performs an operation test of the terminal.

[0011]

According to the present invention, when an important event such as a fire is detected during startup of the apparatus or during initialization processing associated with terminal replacement or new connection of a terminal during operation of the apparatus, the processing is interrupted. Since the initialization processing is restarted after the processing for the event detection is completed, the initialization processing can be surely ended without requiring an artificial restart operation, and the reliability of the apparatus can be improved.

[0012] Even if maintenance work such as terminal replacement is performed during operation, an event such as a fire may occur during the process of replacing or initializing a newly connected terminal without requiring operation at the receiver. However, the operation can be performed reliably, and the work can be greatly reduced.

[0013]

FIG. 1 is a block diagram showing an embodiment of a disaster prevention monitoring device according to the present invention. In FIG. 1, a plurality of transmission lines 8 are extracted from a receiver 1 and each system transmission line 8 is extracted.
Are connected to an analog heat sensor 2, an analog smoke sensor 3, a sensor repeater 4, and a control repeater 5 as terminals. An on / off sensor 6 is connected to a sensor line 9 drawn from the sensor repeater 4. Further, a control device such as a smoke evacuating device 7 is connected to the control repeater 5 and a control line drawn from the line 9.

A maximum of 127 for one transmission line 8
Terminals can be connected, and each terminal has a maximum of 127
The unique address of the type and the type information are set in advance. Each of the terminals transmits power-on status information when powered on. Further, when the terminal type request is received from the receiver 1 by the initialization processing, the terminal type is returned, and when the address request is received, the address data is returned with a predetermined current when the address matches the own address. I have.

The receiver 1 is provided with a main MPU 11 for managing the entire receiver, for example, two sub-MPUs 12 for performing data transmission with the terminal, an operation unit 13, a display unit 14, and a power supply unit 15. ing. The main MPU 11 has a reception control unit 16 and a type table 17, and the type table 17 previously stores terminal type information, addresses, and the like.

Each of the sub-MPUs 12 has a transmission control unit 1
8, an initialization processing unit 19, a processing interruption unit 20, and a restart instruction unit 21.
Based on the control of 11, an initialization process such as a type check, an address duplication check, and an operation test is executed. From each of the sub-MPUs 12, up to eight transmission lines 8 are drawn out. Therefore, one sub-MPU 12 has a maximum of (8
Data transmission is performed between (line) × (127 terminals). When the main MPU 11 specifies a terminal, (8
It can be specified by a line address number of (line) × (127 terminals) × (number of sub-MPUs).

As shown in FIG. 2, the main MPU 11 and the sub MPU 12 each include a CPU 22, a ROM 23, an RA
M24, interrupt port 25, I / O port 26, serial communication port 27, bus 28, etc.
PU11 and sub MPU12 are interrupt port 25, I / O
Commands and data are transmitted via the port 26, and data transmission between the sub-MPU 12 and the terminal is performed via the serial communication port 27.

Next, the operation of the embodiment of FIG. 1 will be described. FIG. 3 shows the overall processing of the receiver as a main routine. First, in step S1, as shown in detail in FIG. 4 to FIG. 7, (1) type check for all terminals, (2) address duplication check, (3) 0 point, issue point acquisition (sensor only) An initialization process called an operation test is executed. Next, in step S2, the completion of initialization of all addresses is checked, and when the initialization processing of all addresses ends normally, the state shifts to a normal monitoring state after step S3.

In step S3, a terminal monitoring process for collecting analog data and status of the terminal by polling is performed. If it is determined in step S4 that a fire has occurred based on the analog data from the analog sensors 2 and 3 obtained in the terminal monitoring process, it is checked in step S5 whether or not a specific terminal is being initialized. Proceeding to S7, a fire response process is performed, for example, ringing of the bell and control of the smoke elimination device 7 are performed. Since the interruption flag F [n] (n: address) is reset in step S8, the process proceeds to step S3. Return.

On the other hand, when a terminal is replaced or newly connected due to maintenance or the like in a normal monitoring state, this is discriminated in step S9, and the flow advances to step S10 to perform initialization processing on the replaced or newly connected terminal. Is executed. In the initialization process in this case, a type check, an address duplication check, and an operation test are performed as in step S1.

If it is determined in step S4 that a fire has occurred during the initialization process of the terminal started in step S10, the process proceeds to step S5, where it is determined that initialization is currently being performed, and the initialization process is performed in step S6. Suspend, and suspend flag F [n] is set to F [n] = 1.
And a fire response process is performed in step S7. At this time, when the fire response processing in step S7 is completed, the interruption flag F [n] is checked in step S8, and since the interruption flag is set to F [n] = 1, step S8 is performed.
Proceeding to 10, restart the initialization process of the terminal and start over from the beginning.

In the initialization processing shown in steps S1 and S10, each processing of type check, address duplication check and operation test shown in detail in FIGS. 4 to 7 is performed. FIG.
Is a type check process first performed as a terminal initialization process. First, in step S11, the main MPU
11 transfers the terminal type information stored in the type table 17 to the sub-MPU 12,
2 requests type information from the terminal by polling. Next, in step S12, type information is collected from the terminal, and the type table (TOM table) 1 of the main MPU 11 is collected.
7 is compared with the type information.

If it is determined in step S13 that the type table matches the ROM table, the process proceeds to the address duplication check process in FIG. On the other hand, if there is a terminal whose type information does not match, the process proceeds to step S14, where the type abnormal status is set. Then, in step S15, the initialization process is interrupted, and the interrupt flag F is set to F [n] = F [n] = Set to 1 and return to the main routine of FIG.

Next, in the address duplication check processing shown in FIG. 5, first, in step S17, the sub-MPU 12 issues an address duplication check command to the terminal by polling, and requests an address duplication check. The terminal returns address data with a predetermined current when it matches the address of the terminal in response to the address duplication check request. The returned current is converted into a voltage V and read in step S18.

Here, if the same address is erroneously set for a plurality of terminals, the two terminals simultaneously return a predetermined current, and as shown in FIG. Double the threshold voltage and exceed the threshold voltage Vth. Therefore, it is determined in step S19 whether or not the reception voltage V is equal to or higher than the threshold voltage Vth. If V> Vth is not satisfied, the set addresses do not overlap, and the process proceeds to the terminal operation test processing in step S24 in FIG. On the other hand, in step S19, V> Vth
In the case of, since the set addresses are duplicated, an address duplication failure status is set in step S20, the initialization process is suspended in step S21, and the suspension flag F [n] of the terminal is set to F [n] = 1. Set and return to the main routine of FIG.

Next, a terminal operation test in step S24 in FIG. 7 is executed. The details of the terminal operation test are shown in FIG. 8, and show, as an example, a case where an operation test of the photoelectric type (scattered light type) analog smoke detector 3 is performed. Here, the scattered light type analog smoke detector 3 detects the amount of smoke based on the scattered light of the smoke, but the detection level differs individually due to dirt or the like in the smoke detection room. For this reason, a test LED for generating pseudo scattered light at the alarm point is provided, and the detection level F when the test LED emits light and the slope obtained by the zero point level Z when there is no pseudo scattered light and smoke are individually determined. Must be corrected.

In FIG. 8, first, in step S31, a test output for causing the test LED to emit light is turned on, and, for example, a test command is sent to the analog smoke detector 3, and in step S32, the test LED is caused to emit light. %
/ M detection point detection level (digital value) is acquired. Next, in step S33, the level F of the alert point is updated within the correction limit using the detection level of 18% / m. At this time, if the correction cannot be made within the correction limit, the operation test result is not normal (OK). Therefore, the process proceeds from step S34 to step and S35 to execute the terminal failure generation process of the operation test abnormality, and then proceeds to step S25 in FIG. .

On the other hand, if the operation test result is normal (OK) in step S34, the test output is turned off in step S36, for example, a test stop command is transmitted. Next, in step S37, the point 0 (0% /
m). In step S38, the zero point level Z is updated within the correction limit, and step S3
At 9 it is checked whether it is within the correction limit. If the correction cannot be made within the correction limit, the operation test is not OK. Therefore, in step S41, a terminal failure generation process for a 0-point abnormality and a report point abnormality is executed, and the process proceeds to step S25 in FIG. On the other hand, step S
If the operation test is OK in 39, a command to set a threshold level corresponding to the sensitivity information currently set is transmitted to the analog smoke detector 3 to be tested in step S40. Then, the threshold for fire determination is set in the terminal, and the process proceeds to step S25 in FIG.

In step S25 in FIG. 7, step S2
It is checked whether or not the terminal operation test of No. 4 is normally completed, and if a failure is determined, an operation test abnormal status is set for the failed terminal in step S26, and step S2
At 7, the initialization processing is terminated normally, and the process returns to the main routine of FIG. Of course, if the normal end of the test is determined in step S25, the normal end is determined in step S27.
Return to the main routine.

As described above, regarding the occurrence of a failure, the initialization processing is not interrupted, the processing is returned to the normal monitoring processing as normal termination, the failure occurrence is displayed by setting a failure status, and the information is provided as information for terminal replacement or the like due to maintenance. . This failure occurrence display is automatically deleted when the terminal replacement or the like is performed thereafter, and the initialization process accompanying the replacement is normally completed.

Of course, if an important event such as a fire occurs during the initialization processing shown in FIGS. 4, 5, 7, and 8, the initialization processing is interrupted as shown in the main routine of FIG. After the fire response processing is completed, the processing is automatically restarted by a restart. In the above-described embodiment, the type check, the address duplication check, and the terminal operation test are performed as the initialization processing, but the content of this processing can be appropriately determined as needed.

[0032]

As described above, according to the present invention, even if an important event such as a fire is detected during the initialization processing and the processing is interrupted, the initialization processing is automatically performed when the processing for the event detection is completed. Is restarted, so that it is interrupted by a fire or the like, and the restart operation by the monitor of the initialization process is not required at all, thereby facilitating the management work, and improving the reliability by reliably performing the initialization.

Also, during terminal replacement and maintenance work for new connection during operation, initialization processing is automatically performed. Even if the initialization processing is interrupted due to a fire or the like, the processing is automatically restarted after the processing is completed to ensure that the initialization processing is resumed. The maintenance work is facilitated.

[Brief description of the drawings]

FIG. 1 is a block diagram showing one embodiment of a disaster prevention monitoring device according to the present invention.

FIG. 2 is a block diagram showing a configuration of each of a main MPU and a sub MPU in FIG. 1;

FIG. 3 is a flowchart showing an overall process of the receiver which is restarted when a fire occurs during the initialization process.

FIG. 4 is a flowchart showing details of a type check process in FIG. 3;

FIG. 5 is a flowchart showing details of an address duplication check process of FIG. 3;

FIG. 6 is an explanatory diagram of a reception voltage when an address is duplicated;

FIG. 7 is a flowchart showing details of a terminal operation test process of FIG. 7;

FIG. 8 is a flowchart showing details of a terminal test process of the analog smoke detector.

[Explanation of symbols]

 1: Receiver 2: Analog heat detector 3: Analog smoke detector 4: Repeater for sensor 5: Relay for control 6: On / off detector 7: Smoke elimination device 8: Transmission line 11: Main MPU 12 : Sub-MPU 13: operation unit 14: display unit 15: power supply unit 16: reception control unit 17: type table 18: transmission control unit 19: initialization processing unit 20: processing interruption unit 21: restart instruction unit 22: CPU 23: ROM 24: RAM 25: Interrupt port 26: I / O port 27: Serial communication port 28: Bus

──────────────────────────────────────────────────続 き Continuation of the front page (72) Inventor Hiroshi Shimizu 2-10-43 Kami-Osaki, Shinagawa-ku, Tokyo Inside Hochiki Co., Ltd. (56) References JP-A-6-266987 (JP, A) JP-A Heihei 5-325007 (JP, A) (58) Fields investigated (Int. Cl. ⁶ , DB name) G08B 26/00 G08B 17/00 G08B 25/00 510

Claims (5)

(57) [Claims] 1. Disaster prevention monitoring for centrally monitoring by connecting a terminal such as a sensor for detecting analog information such as smoke density and temperature associated with a fire or a remotely controlled device to a transmission line drawn from a receiver. In the device, when the device is started up, the terminal type preset in the terminal is compared with the type information in the ROM table prepared in advance, and the presence / absence of address duplication of the terminal is verified. In the case, an initialization processing unit that shifts to a normal monitoring process, and a processing interruption unit that interrupts the processing of the initialization processing unit when an important event such as a fire occurrence is detected during the processing of the initialization processing unit. And a restart processing unit that restarts the processing for the initialization processing unit after the processing for the event detection is completed. That disaster prevention monitoring device. 2. The disaster prevention monitoring device according to claim 1, wherein the initialization processing unit is configured to perform a monitoring processing state after a normal end of the initialization processing of all terminals by starting the apparatus.
A disaster prevention monitoring device characterized in that when a new connection of a terminal or replacement of a terminal is detected, the detected terminal is automatically designated and an initialization process is automatically performed. 3. The disaster prevention monitoring device according to claim 1, wherein the processing interruption unit is configured to execute the initialization processing unit when a terminal type preset for the terminal does not match or when an address is duplicated. Wherein the restart processing unit restarts the processing of the initialization processing unit when detecting a mismatch of terminal types or the elimination of address duplication. 4. The disaster prevention monitoring device according to claim 1, wherein the restart processing unit is configured to notify the initialization processing unit when an unconnected state of a corresponding terminal is detected in a detection state of address duplication. Disaster prevention monitoring device characterized by restarting the process. 5. The disaster prevention monitoring device according to claim 1, wherein the initialization processing unit further performs an operation test of the terminal.