JP3096126B2 - Sensor sensitivity setting change device - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an apparatus for changing the sensitivity of a sensor set in a receiver, a relay board, or the like, which is set for judging a fire.

[0002]

2. Description of the Related Art Conventionally, as a change in the setting of a sensor sensitivity used for a fire judgment of an analog fire alarm system, for example, the sensitivity is changed by designating a sensor in a disaster prevention receiver or an external device is connected to the disaster prevention receiver. The sensitivity is changed by designating a sensor on the menu screen of the connected disaster prevention display CRT device.

[0003]

However, in such a conventional sensitivity setting changing device for a sensor, the setting can be changed only in a place where a disaster prevention receiver or a disaster prevention display CRT device is installed. Therefore, for example, in a wide-area disaster prevention management system that centrally manages a plurality of locally separated properties with a specific center facility, false alarms etc. occur frequently, and it is necessary to change the setting of the sensor sensitivity etc. In such a case, it is necessary to go to the installation location and perform necessary operations, and there is a problem that it takes time and effort to change the settings.

[0004] Further, even when it is desired to check the setting state of the sensitivity for each property, it is necessary to go to the installation location of the receiver relay panel. SUMMARY OF THE INVENTION The present invention has been made in view of such a conventional problem, and has as its object to provide a sensor sensitivity setting changing device which can easily confirm and change the setting sensitivity of a sensor from the outside. And

[0005]

SUMMARY OF THE INVENTION In order to achieve this object, the present invention provides a method of changing the sensitivity setting of a sensor used for a fire judgment stored in a memory of a receiver or a relay board of a fire alarm system. As a device, a computer device is connected to a receiver or a relay board via a communication line, and the computer device has a checking means for checking the sensitivity stored in the memory of the receiver or the relay board, and the computer stores the sensitivity in the memory. A sensitivity changing means for changing the setting of the sensitivity is provided.

[0006]

According to the sensor sensitivity setting change apparatus of the present invention having such a configuration, a computer device such as a personal computer is connected to a receiver or a relay board of a fire alarm system via a communication line. The current setting of the sensor sensitivity can be called up and checked, and if the setting needs to be changed, the setting can be changed remotely, and multiple fire alarms can be remotely monitored centrally. Management operations can be performed smoothly and appropriately.

[0007]

FIG. 1 is a block diagram showing an embodiment of the present invention. In FIG. 1, reference numeral 1 denotes a disaster prevention monitor panel functioning as a receiver, from which a transmission line 2 also serving as a power line is drawn out toward a security area, and an analog smoke detector 3 and a The analog heat detector 4 is connected.

As shown in FIG. 2, the disaster prevention monitoring panel 1 has an MPU (microprocessor) as a main control unit.
5, a transmission control unit 8, a display operation unit 9, a transfer unit 10, a communication interface 11, and a power supply unit 12. The MPU 5 is provided with a fire judging unit 6 realized by program control, and a setting sensitivity storage unit 7 using a memory such as a RAM.

The transmission control unit 8 of the disaster prevention monitoring panel 1 transmits calling data consisting of a sensor address and a command to the transmission line 2 under the control of the MPU 5 to perform a sensor calling (polling). When the detector receiving the call from the monitoring panel 1 obtains the collation match between the calling address and the self address by the built-in transmission control unit, the analog detection information detected at that time, that is, the analog smoke detector 3 is deleted. In the case of the analog heat sensor 4, temperature data is returned.

A fire judging section 6 provided in the MPU 5 makes a fire judgment and a pre-alarm judgment on the analog detection data sampled at a constant period. In the fire judgment, the analog detection data is compared with a predetermined fire level, and when the fire level is exceeded, an alarm is displayed on the operation display unit 9 and a transfer output is performed via the transfer unit 10.

The pre-alarm judgment is performed by using, for example, a quadratic function approximation by using current data and data of a plurality of cycles obtained in the past when the analog detection data exceeds a calculation start level lower than the fire level. When the coefficients a, b, and c of y = ax ² + bx + c are obtained, the time x until the detection value y reaches the fire level is obtained as the estimated time, and the estimated time x is equal to or less than the predicted time predetermined as the reference time. Perform pre-alarm output.

Further, a sensitivity value set for each line or for each sensor is stored in the set sensitivity storage unit 7 of the MPU 5. Specifically, the fire level used in the fire judgment by the fire judgment unit 6 and the predicted time used in the pre-alarm judgment are stored as table data. Referring again to FIG. 1, the present invention has a function of confirming the setting sensitivity of the sensor and changing the setting of the sensitivity via the communication line 13 with respect to the disaster prevention monitoring panel 1 of the fire alarm system. The personal computer 14 is connected. Specifically, the personal computer 14 is connected to the communication line 13 via the modem 15, while the fire alarm equipment side is connected to the communication line 13 via the decoder 17 and the modem 16. .

A confirmation function for calling and displaying the set sensitivity data of the sensors stored in the disaster prevention monitor panel 1 by the program control on the personal computer 14 and a setting function of the sensor stored in the disaster prevention monitor panel 1 are displayed. A function is provided as sensitivity changing means for changing remotely. Next, a process of confirming and changing the sensitivity of the sensor of the disaster prevention monitoring panel 1 by the personal computer 14 provided in the embodiment of FIG. 1 will be described with reference to the flowchart of FIG.

When the personal computer 14 is started, its CRT
The personal computer 1 is displayed on the monitor 14a as shown in step S1.
A menu screen for selecting a plurality of properties managed by 4 is displayed. When a specific property is selected in step S2 using the property selection menu screen, the flow advances to step S3 to establish a communication state with the decoder 17 via the modem 15, the communication line 13, and the modem 16.

Subsequently, in step S4, a request for the current setting information is made from the personal computer 14, and the decoder 17 decodes the request command for the setting information, and requests the disaster prevention monitoring panel 1 for the setting information. Is transmitted to the personal computer 14 through the modem 16, the communication line 13, and the modem 15. The request for the setting information in step S4 may be made automatically or may be made by an operator.

When the current setting information has been received from the disaster prevention monitoring panel 1, the setting information is displayed on the CRT monitor 14a in step S5, and the contents can be confirmed. If the user wants to change the setting of the sensitivity of the sensor, the user selects a sensitivity change menu in step S6. In step S7, a menu screen of a sensitivity setting command is displayed. Create

In the next step S8, it is checked whether or not the creation of the sensitivity setting command has been completed. If one or a plurality of sensitivity setting commands have been created and a termination instruction has been issued, the flow advances to step S9 to select the transmission menu. move on. Here, when the transmission command in the menu is selected, step S10 is performed.
Then, the personal computer 14 transmits a message including the sensitivity setting command created in step S7 to the decoder 17 via the modem 15, the communication line 13, and the modem 16.

The decoder 17 decodes the sensitivity setting command obtained from the electronic message from the personal computer 14, requests the disaster prevention monitor 1 to change the sensitivity, and completes the change of the sensitivity. When a series of processes is completed and an end operation is performed, this is determined in step S11, and the process ends. Of course, if the end operation is not performed, the process returns to the menu screen of step S1 and the same processing can be repeated.

FIG. 4 is an explanatory diagram showing an example of a menu screen for changing the sensitivity setting displayed on the CRT monitor 14a of the personal computer 14 in FIG. To change the setting of the sensor sensitivity using the menu screen of FIG. 4, first, in order to specify the sensor whose sensitivity is to be changed, the design drawing of the property is examined, and each of the relay board system and the line indicated as the type is checked. Enter a number in the box. When such a sensor designation operation is completed, a request for confirmation of the setting sensitivity is made from the personal computer 14 to the disaster prevention monitoring panel 1 via the communication line 13, and when response data from the disaster prevention monitoring panel 1 is received, the menu screen “ Numerical values indicating “predicted time” and “density” are displayed as sensitivity data as “current operation data”, and the current set sensitivity can be confirmed.

When the sensor for which the sensitivity is to be changed is designated and the current data can be confirmed, the value of the sensitivity to be newly set is set in the predicted time of the next "normal operation data" and the frame of "density". Then, a sensitivity change command based on the set numerical value is created, sent to the disaster prevention monitoring panel 1 via the communication line 13, and the setting is changed to the set predicted time and density.

Here, numerical values of seconds and% / m may be directly set for the predicted time and the density. However, since the setting operation is complicated, for example, the smoke density is the first 5% / m (one type). Sensitivity) No. 2 10% / m (2 types of sensitivity) No. 3 20% / m (3 types of sensitivity) Prepare a sensitivity table that has a correspondence between numbers and densities, and specify the density with a set of table numbers You may be able to. Similarly, for the predicted time, a sensitivity table of the number and the predicted time is prepared, and the predicted time can be set by a set of table numbers.

FIG. 5 is an explanatory diagram showing another operation screen for sensitivity confirmation and sensitivity change performed by the personal computer 14 in FIG. In the case of FIG. 5, a plan view of a designated place for each property is prepared on the personal computer side. When a change place is designated, for example, the plan view shown in FIG.
Displayed above.

To change the sensitivity of the sensor using this plan view, when the sensor symbol to be changed on the CRT monitor 14a is clicked with a light pen to select a sensor, the current sensitivity display is changed. Done. That is, a readout request for the set sensitivity is made to the disaster prevention monitoring panel 1 via the communication line 13, and the current sensitivity is displayed based on the response data. This sensitivity display is performed by, for example, flickering the display of one of the above-mentioned one type sensitivity, two types sensitivity, and three types sensitivity.

If the current set sensitivity can be confirmed, then a rectangular symbol of one sensitivity, two sensitivity or three sensitivity indicating the changed sensitivity is clicked with a light pen, and then a click operation of execution is performed. Then, a sensitivity setting command is transmitted to the disaster prevention monitoring panel 1 via the communication line 13, and the setting sensitivity is changed by updating the memory registration. In the above-described embodiment, the fire determination unit 6 and the setting sensitivity storage unit 7 are provided in the MPU 5 of the disaster prevention monitoring panel 1. However, a plurality of relay panels are provided for the disaster prevention monitoring panel 1. When an analog sensor is connected to this relay board via the transmission line 2, since a fire determination section 6 and a setting sensitivity storage section 7 are provided in each relay board, the relay board is connected to the relay board via a communication line. What is necessary is just to connect the personal computer 14 provided with the function of confirming and changing the setting sensitivity.

In the embodiment shown in FIG. 1, a decoder 17 is provided on the disaster prevention monitor panel 1 side to enable communication control with the personal computer 14. If the communication control function is added, the decoder 17 becomes unnecessary, and various request processings including confirmation of set sensitivity and sensitivity change between the personal computer 14 and the disaster prevention monitoring panel 1 can be realized via the communication line 13.

[0026]

As described above, according to the present invention, it is possible to remotely detect a fire through a communication line without having to go to a place where a fire prevention monitor or a relay board of a fire alarm system is installed. The sensitivity setting can be changed and the sensitivity can be changed, and operation management can be performed more appropriately when a wide-area disaster prevention management system is constructed that remotely monitors fire alarm equipment installed in multiple properties. it can.

[Brief description of the drawings]

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

FIG. 2 is a configuration diagram of an embodiment of the disaster prevention monitoring panel of FIG. 1;

FIG. 3 is a flowchart showing a processing operation of the present invention.

FIG. 4 is an explanatory diagram showing an example of a personal computer menu screen used for sensitivity setting of the present invention.

FIG. 5 is an explanatory diagram showing another example of a personal computer menu screen used for sensitivity setting of the present invention.

[Explanation of symbols]

 1: Disaster prevention monitoring panel 2: Transmission path 3: Analog smoke detector 4: Analog heat detector 5: MPU (microprocessor) 6: Fire determination unit 7: Setting sensitivity storage unit 8: Transmission control unit 9: Display operation unit 10 : Transfer section 11: Communication interface 12: Power supply section 13: Communication line 14: Personal computer 14 a: CRT monitor 15, 16: Modem 17: Decoder 18: Printer

Claims (1)

(57) [Claims] An apparatus for changing the sensitivity of a detector used for fire judgment stored in a memory of a receiver or a relay board of a fire alarm system for changing the sensitivity of a sensor, wherein the communication with the receiver or the relay board is performed. A computer device is connected via a line, and the computer device is provided with checking means for checking the sensitivity stored in the memory of the receiver or the relay board, and sensitivity changing means for setting and changing the sensitivity stored in the memory. An apparatus for changing the sensitivity of a sensor.