JP3105604B2 - 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 a device for changing the detector sensitivity of a fire alarm system for setting and changing the detector sensitivity set for judging a fire in a receiver, a relay board or the like.

[0002]

2. Description of the Related Art Conventionally, a change in the setting of a sensor sensitivity set in, for example, a receiver of an analog fire alarm system includes:
For example, a menu as shown in FIG. 4 is displayed on the CRT screen of the operation display device externally connected to the receiver. To change the setting of the sensor sensitivity using the menu screen of FIG. 4, first specify the sensor whose sensitivity is to be changed.
A design drawing or the like is checked, and a number is entered in each frame of the relay board, system, and line indicated as a type. When the designation operation of such a sensor is completed, the numerical value of the sensitivity table indicating the “predicted time” and the “density” is displayed as sensitivity data as the next “current operation data”, for example, in the case of a smoke sensor, You can check the current setting sensitivity.

[0003] Here, the "estimated time" is a reference time used for pre-alarm judgment based on function approximation. That is, when the smoke concentration exceeds a predetermined calculation start level, the upward trend of smoke is approximated by a function using a plurality of present and past data, and an estimated time from the present time to reach the fire level is obtained. A pre-alarm is performed when the time is shorter than a predetermined estimated time. “Density” is the smoke density that gives a fire level.

[0004] If a sensor for changing the sensitivity can be designated, the estimated time and the density of the "normal operation data" are set as follows.
When a number in the sensitivity table corresponding to the sensitivity to be newly set is set, the setting is changed to the predicted time and density corresponding to the set number. The predicted time and concentration are
Although the numerical values of seconds and% / m may be directly set, since the setting operation is complicated, for example, regarding smoke density, first 5% / m (1 type sensitivity) second 10% / m (2 A sensitivity table having a correspondence between a number and a density such as No. 3 20% / m (3 sensitivity) is prepared, and the density can be set by setting a table number.

[0005]

However, in the conventional setting of the sensor sensitivity, the sensor whose sensitivity is to be changed is designated by the number of the relay panel, system, line, etc. It is necessary to check the installation location of the sensor using a diagram or the like, and confirm the location, which is complicated. In addition, it is difficult to understand the state of the place where the sensor is installed, and there is a risk that the sensitivity which is not normally set may be erroneously set in consideration of the environment of the place where the sensor is installed.

SUMMARY OF THE INVENTION The present invention has been made in view of the above-mentioned conventional problems, and it is easy to confirm the installation location of a sensor and to change the sensitivity of the sensor appropriately in consideration of the installation environment. The purpose is to provide.

[0007]

In order to achieve this object, the present invention is configured as follows. First, the present invention is directed to a sensor sensitivity setting change device of a fire alarm system for setting and changing the sensitivity of a detector used for fire judgment stored in a receiver or a relay board. In the present invention, as such a sensor sensitivity setting change device, a layout map display unit that displays a plan layout diagram of a warning area in which a sensor that performs a sensitivity change is arranged, and a layout map display unit that displays the layout map display unit. And a sensitivity change control unit for changing the sensitivity by designating the sensor shown in the plan view.

Here, the sensitivity change control section selects a sensor whose sensitivity is to be changed when a specific sensor symbol on the displayed plan view is designated by a light pen, a cursor or the like, and is displayed after this selection. When the symbol of an arbitrary sensitivity setting command is designated by a light pen, a cursor or the like, the sensitivity is changed to the designated sensitivity.

[0009]

According to the sensor sensitivity setting change apparatus of the present invention having such a configuration, a plan view of a sensor installation location is displayed, and a sensor symbol on the display screen is selected with a light pen or the like. Can easily specify the sensor whose sensitivity is to be changed. In addition, since the environment of the installation location of the sensor can be known from the layout plan view and the sensitivity can be set according to the installation environment, it is possible to reliably prevent incorrect sensitivity setting.

[0010]

FIG. 1 is a block diagram showing an embodiment of an analog fire alarm system equipped with a detector sensitivity changing device according to the present invention. FIG.
In the figure, reference numeral 1 denotes a disaster prevention monitor panel functioning as a receiver, and an analog smoke detector 3 and an analog heat sensor 4 are connected to a transmission line 2 serving also as a power supply line drawn from the disaster prevention monitor panel 1 to a security area. doing.

The disaster prevention monitoring panel 1 is an MPU as a main control unit.
(Microprocessor) 5, transmission control unit 8, display operation unit 9, transfer unit 10, and power supply unit 11. The MPU 5 is provided with a fire determination unit 6 realized by program control, and a setting sensitivity storage unit 7 using a RAM or the like. Under the control of the MPU 5, the transmission control unit 8 of the disaster prevention monitoring panel 1 transmits the calling data including the sensor address and the command to perform the sensor calling (polling). Upon receiving the collation match between the calling address and the self-address by the built-in transmission control unit, the sensor that has received the analog detection information detected at that time, that is, the analog smoke detector 3, smoke density data, The analog heat sensor 4 sends back the temperature data.

A fire judging unit 6 provided in the MPU 5 of the disaster prevention monitor 1 performs a fire judgment and a pre-alarm judgment on the analog detection data sampled at a constant cycle. 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 by the display / operation unit 9 and a transfer output is performed via the transfer unit 10.

Further, 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 the operation start level lower than the fire level. Then, 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. Performs alarm output.

Further, a sensitivity value set 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. Display device 1 for disaster prevention monitoring panel 1
2 is externally connected. The display device 12 includes an MPU 13 as a controller.
A console 19 such as a T monitor 17, a light pen 18, and a keyboard is connected. The MPU 13 includes a layout display unit 14 and a sensitivity change control unit 1 realized by program control.
5 is provided. The layout diagram display unit 14 and the sensitivity change control unit 15 provided in the MPU 13 of the processing device 12 constitute the main parts of the sensor sensitivity setting change device of the present invention.

The layout drawing display unit 14 receives a layout drawing file 16 when an operator designates a sensor installation location.
A plan view of a sensor installation location stored in advance on a magnetic disk, a floppy disk, or the like is read out and displayed on the CRT monitor 17. Layout view display unit 14
For example, there is a plan view shown in FIG.

On the display screen of the CRT monitor 17 shown in FIG. 2, there is displayed a plan layout view of a section including a sensor designated to change the sensitivity, and S01 to S shown by rectangular frames.
12 is a sensor symbol. Various menus used for the sensitivity changing operation are displayed on the upper and lower portions of the screen.

Referring again to FIG. 1, the M
The sensitivity change control unit 15 provided in the PU 13 is
Using the display screen of the CRT monitor 17 as shown in FIG. For example, if it is desired to change the sensitivity of the sensor symbol S01 in FIG.
When the sensor symbol S11 is clicked, the sensor symbol S01 that has been clicked flickers, and at the same time, any one of the display frames of one type, two types, and three types shown above flickers, and the currently set sensitivity is displayed. Is shown. Subsequently, when the sensitivity to be changed is clicked with the light pen 18 and the execution menu is further clicked, the sensitivity is changed.

If the user wants to stop changing the sensitivity after the selection, he or she can click Cancel, and if the processing of changing the sensitivity is completed, click End. FIG. 3 is a flowchart showing a sensitivity change processing operation by the MPU 13 of the display device 12 shown in FIG. In FIG. 3, first, when a change place is designated by using the console 19 or the like in step S1, the process proceeds to step S2, and a plan view of the designated place is displayed on the CRT monitor 17 as shown in FIG. .

Subsequently, at step S3, the CRT monitor 17
When the sensor symbol is selected by clicking the upper sensor symbol with the light pen 17, the process proceeds to step S4, and the current sensitivity is displayed. In the case of FIG. 2, flicker occurs in any of the above-mentioned one type sensitivity, two types sensitivity, and three types sensitivity. Subsequently, the process proceeds to step S5, and waits for the setting change operation to be performed. When the setting change operation is performed, the process proceeds to step S6, where the selected new sensitivity is displayed. Is performed, the memory registration process is performed by the vinegar hand S8, that is, the MP of the disaster prevention monitor 1 of FIG.
The setting sensitivity of the setting sensitivity storage unit 7 provided in U5 is changed.

If the setting change operation is not determined in step S5, the cancellation check routine of step S9 is repeated, and if the operation is the cancellation operation, step S10 is performed.
, The process returns to step S1, and a new sensitivity change can be performed. When an end operation is performed, step S1 is performed.
It is determined as 0, and a series of sensitivity change processing ends. Note that the sensitivity display on the screen used for the sensitivity change operation using the plane layout diagram of FIG. 2 and the menu display of each command of execution, cancellation, and termination are merely examples, and in the present invention, the CRT monitor 17 displays the menu. If a plan view with the sensor symbols is displayed, and the sensor symbols on the plan view can be used directly to select and change the sensitivity of the sensor, an appropriate changing operation method can be used.

In the above-described embodiment, the fire prevention monitoring panel 1 functioning as a receiver is provided with the fire determining section 6 and the setting sensitivity storage section 7 as an example. In a large-scale fire alarm device provided with a relay panel between the relay panel and the device side, the relay panel has a fire determination unit 6 and a setting sensitivity storage unit 7.
Is provided, the sensitivity setting information from the display device 12 provided on the disaster prevention monitor panel side 1 is sent to the relay panel via the disaster prevention monitor panel 1, and the setting sensitivity storage unit 7 is rewritten according to the sensitivity change. You may do so.

Of course, when the display device 12 is externally connected to the relay board, the sensitivity may be changed by the display device 12 for each relay board as shown in FIG.

[0023]

As described above, according to the present invention, the selection of the sensor and the setting change of the sensitivity can be performed by directly using the display screen of the plan view showing the installation location of the sensor. Changes can be made easily. Also,
Since the situation of the sensor installation location can be confirmed from the floor plan, mistakes such as changing the sensitivity of the sensor in the wrong place or changing the sensitivity of the installation location to a sensitivity that is not normally set can be ensured. Can be prevented.

[Brief description of the drawings]

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

FIG. 2 is an explanatory view of a screen display for sensitivity setting according to the present invention.

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

FIG. 4 is an explanatory diagram on a menu screen used for conventional sensitivity setting.

[Explanation of symbols]

 1: Disaster prevention monitoring panel 2: Transmission path 3: Analog smoke detector 4: Analog heat detector 5, 13: MPU (microprocessor) 6: Fire determination unit 7: Setting sensitivity storage unit 8: Transmission control unit 9: Display operation Unit 10: transfer unit 11: power supply unit 12: display unit 14: layout drawing display unit 15: sensitivity change control unit 16: layout drawing file 17: CRT monitor 18: light pen 19: console

Claims (2)

(57) [Claims] 1. A detector for changing the sensitivity of a fire alarm system for setting the sensitivity of a detector used for fire judgment stored in a receiver or a relay board, wherein a detector for changing the sensitivity is arranged. A layout display unit that displays a plan layout of the area, a sensitivity change control unit that changes the sensitivity by designating a sensor indicated on the plan layout displayed by the layout display,
A sensitivity changing device for a sensor, comprising: 2. A sensor sensitivity setting change device according to claim 1, wherein said sensitivity change control unit is adapted to specify a specific sensor symbol on the displayed plan view with a light pen, a cursor or the like. A sensor sensitivity setting characterized by selecting a sensor for which sensitivity is to be changed, and changing the symbol of an arbitrary sensitivity setting command displayed after the selection to a designated sensitivity when designated by a light pen, a cursor, or the like. Change device.