JPH05334587A - Fire alarm system - Google Patents

Abstract

PURPOSE:To easily change the specification, etc., of a fire sensor when the installed sensor becomes inadequate by storing a setting value showing the setting state of each fire sensor and enabling the rewriting of the setting value by each fire sensor by a changing means. CONSTITUTION:The setting value showing the setting state of each fire sensor 4 is stored in a first storage means and can be rewritten the setting value stored in the first storage means by each fire sensor by the changing means. Practically, one of the fire sensors 4 is specified by an specifying means and the setting value of the specified time of the specified fire sensor is stored in a second storage means and displayed by a list displaying means. When the setting value is displayed like this, an item to be desired to change can be selected from plural displayed items by a cursor being a selection means and the value can be written into the selected item by a writing means, which stores it in the second storage means and stores it in the first storage means.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a fire alarm system using a receiver such as a fire receiver or a repeater to which a fire sensor for transmitting information on a change in physical quantity based on a fire phenomenon is connected.

[0002]

2. Description of the Related Art Conventionally, in a fire alarm system having an R-type fire receiver or the like to which an analog fire sensor is connected, the specifications of the fire sensor or the like may be changed after the fire receiver is installed and constructed. Sometimes it was necessary. For example,
If there is a change in the usage of the room where the fire sensor is installed, or if one room is a partition, one room is the office room and the other is the meeting room, and the smoking environment changes, the old fire sensor installed The method was to remove and replace with a suitable new fire sensor. Replacing the fire sensor in this way is not only labor-intensive, but also wasteful because the removed old fire sensor is disposed of.

All the fire sensors are divided into groups,
For example, there is a fire alarm system that has the function of switching the sensitivity of the fire sensor for each group according to the presence or absence of people in the group (for example, “Fire alarm filed by the applicant of the present application on March 31, 1992). Japanese Patent Application No. 4-76960) named "equipment", in the case of such a fire alarm equipment,
Some fire sensors need to be changed to another group because the group that had been one until now is divided by the partition etc. or the group is integrated by removing the partition on the contrary. Sometimes. In such a case, in order to make changes, a method such as different wiring for each group or laying new wiring has been adopted, and the work has been troublesome.

In view of the above points, the present invention is an existing fire alarm system, and when the installed fire sensor is no longer suitable for the location due to partitioning of the room or changes in the usage environment, the fire sensor can be easily installed. The purpose is to obtain a fire alarm system that can change the specifications, etc.

[0005]

In order to achieve this object, according to the present invention, the reception of a fire receiver or a repeater to which a fire sensor for transmitting information on a change in physical quantity based on a fire phenomenon is connected. In a fire alarm facility using a part, a change that rewrites the set value stored in the first storage means for storing a set value indicating the set state of each fire sensor for each fire sensor A fire alarm system is provided.

Further, according to the present invention, each fire sensor is used in a fire alarm facility using a receiving unit such as a fire receiver or a repeater to which a fire sensor for transmitting information on a change in physical quantity based on a fire phenomenon is connected. A first storage means for storing a setting value indicating the setting state of the fire sensor, a designating means for designating one of the fire sensors, and a setting value for designating the fire sensor designated by the designating means. Second storage means, list display means for displaying the storage contents of the second storage means in a list, selection means for selecting an item to be changed from a plurality of items displayed by the list display means, and the selection means An entry means for entering a value in the item selected by
The second value is set using the value entered by the entry means as the set value.
There is also provided a fire alarm facility comprising entry value storage means to be stored in the storage means, and setting execution means to store the contents stored in the second storage means in the first storage means.

[0007]

The set value indicating the set state of each fire sensor is stored in the first storage means, and the set value stored in the first storage means is changed for each fire sensor by the changing means when necessary. It can be rewritten. Specifically, one of the fire sensors is designated by the designating means, the set value at the designated time of the designated fire sensor is stored in the second storage means, and is displayed by the list display means. If done, the item to be changed can be selected from the displayed plurality of items by the selection unit which may be a cursor, and the value can be written in the selected item by the writing unit. The entered value is stored as a set value in the second storage means by the entered value storage means and is stored in the first storage means by the setting execution means. In this way, since the designated set values of the fire sensor are temporarily transferred to the second storage means and then displayed as a list by the list display means, it is possible to easily select an item to be changed while observing the list display. You can

[0008]

EXAMPLE An example of the present invention will be described below in Japanese Patent Application No.
The case of application to the fire alarm system of No. -76960 will be described as an example. FIG. 1 is a block circuit diagram showing a fire alarm facility described in the specification attached to the Japanese Patent Application, which is a fire receiver 1 and one main relay among a plurality of fire receivers 1 connected to the fire receiver 1. 2 is shown, and the main repeater 2 includes a normal repeater 3 (child repeater), an analog fire sensor (hereinafter abbreviated as an analog sensor) 4, a smoke fire detector. Various devices such as a detector 5a and a thermal fire detector 5b and other detectors 5, a district sound device 6, a controlled device 7 such as a fire door closing device and a smoke exhaust damper opening device are shown connected. There is. Further, the fire receiver 1 is shown with a plurality of in-room detectors 8 arranged, for example, one in each room.

In the fire receiver 1, the MPU 1 is a microprocessor, the ROM 11 is a storage area for programs and the like, and the ROM 12 is an address (serial number or ridge, floor, district, number) of the main repeater and terminal equipment and terminal equipment. Storage area for type names (an example of storage contents is shown in FIG. 2), R
The AM 11 is a work area, the RAM 12 is a storage area for storing the relationship between groups of the room detector and each main repeater, and the presence / absence data (an example of the storage content is shown in FIG. 3), and the RAM 13 is , A storage area for the presence / absence data of each group to be sent to the main repeater (an example of the storage content is shown in FIG. 4), the RAM 14 stores the requested conventional set values, and a display unit DP1 described later. Operation part OP while observing
A storage area for storing the new setting value input using 1 (see FIG. 5).
), TM1 is a timer group that functions corresponding to each main repeater, SW1 is a recovery switch (non-locking type), TRX11 is a transmission / reception circuit having a parallel / serial converter, a serial / parallel converter, and the like. , RX1 is a receiving circuit for receiving a signal from the occupancy detector 8, DP1 is a display unit having a CRT, various display lights, etc., OP1 is an operation unit having a test switch, an operation switch, etc., IF11 to IF11 to IF15
Is the interface ,.

In the main repeater 2, the MPU 2 is
The microprocessor, the ROM 21 is a storage area for programs and the like, and the ROM 22 is a storage area for a database of unique information of each terminal device connected to the main repeater 2 (an example of the storage contents is shown in FIG. 6). ), The ROM 23 is a storage area for storing the standard fire determination value LV and the standard change value LC according to the type and type of the sensor of the terminal, the RAM 21 is a working area, and the RAM 22 is a fire signal at the corresponding address. The storage area, the RAM 23 is a storage area for storing presence / absence data of the group (a memory corresponding to the storage area RAM 13, an example of the storage contents is shown in FIG. 7), RAM 24.
Is a storage area (a memory corresponding to the storage area RAM 14 that stores the setting values of the respective fire sensors 4 and is initially the storage area RO).
(Copied from M22), TRX21 to TRX23
Is a transmitting / receiving circuit similar to the transmitting / receiving circuit TRX11.

FIG. 8 shows an example in which one in-room detector 8 is provided in each room, the rooms are divided into groups, and the sensitivity is switched for each group. In FIG.
For example, a plurality of analogs connected to the first main repeater 2
Six chambers R1 to R6 in which the sensor 4 is performing fire monitoring are shown. In each room, in-room detectors 81 to 8 are shown.
6 is installed. These chambers R1 to R6 are A, B,
It is divided into four groups C and D. In this grouping, one room may be divided into a plurality of groups, or a plurality of rooms may be divided into one group. In the illustrated example, the room R1 and part of the room R4 are grouped as A, the room R2 and part of room R4 are grouped as B, and the room R3 and R6 are grouped as C. And room R5 is now in group D. Such grouping can be performed, for example, by taking a company as an example, rooms R3 and R6.
Since all of them leave the office on time, they are classified into the same C group, and some areas of the room R1 and the room R4 work overtime until late, so they are classified into the A group. The presence / absence detector monitors the presence / absence of each group by the presence detector, and the sensitivity is switched for the group determined to have changed from the presence state to the absence state or from the presence state to the presence state.

An example of the stored contents of the storage area RAM 12 for setting and storing the presence / absence of each group based on the signal indicating presence / absence from the presence detector 8 is shown in FIG. In the case of number 1, the room numbers 1 to 6 correspond to the rooms R1 to R6 shown in FIG. 8, and the room presence detector numbers 1 to 6 correspond to the room presence detectors 81 to 86 shown in FIG. When each occupancy detector outputs a signal indicating that the presence of a person (or one that emits infrared rays or one that moves) is output, the occupancy detector output number area shown in FIG. "Presence" is stored, and "absence" is stored if no presence is detected. Only when all the room presence detectors installed in the rooms included in a certain group detect the absence, it is determined that the group is absent, that is, no person exists in the area of the group. Therefore, the occupancy detector output is shown in FIG.
As shown in FIG. 3, when the room numbers 1 to 6 are occupied, occupied, absent, absent, occupied, and absent in each group, the presence or absence in each group is as shown in the lower column of FIG. The group A is in the room, the group B is in the room, the group C is absent, and the group D is in the room.

As the database of the unique information of each terminal device connected to the main repeater 2 stored in the storage area ROM 22 shown in FIG. 6, for example, the following items are stored.

[0014]

[Table 1] Connected main repeater number 1, 2, 3, ... Terminal address 1 to N (or management address) (ridge / floor / district / number) Terminal type Smoke type analog sensor, heat Type analog sensor, repeater, smoke control equipment, etc. Terminal type / type 1 of smoke type analog sensor
Type 2, 2 and 3 60 °, 65 °, 70 ° of the thermal analog sensor, setting value of the fire sensor Group name A, B, C, ... Fire discrimination level LV (Absent room) LV ( For example, one smoke type analog sensor LV = 3%
/ M 2 types of smoke type analog sensor LV = 6% / m 3 types of smoke type analog sensor LV = 9% / m 60 ° C thermal analog sensor LV = 55 ° C 65 ° C thermal type analog sensor Sensor LV = 60 ° C 70 ° C Thermal analog sensor LV = 65 ° C Change value of fire discrimination level LC Pre-alarm level PL Change value of pre-alarm level PLC Fire accumulation time TA

In this way, the storage area ROM 22 stores the group name corresponding to each main repeater number, the fire discrimination level LV when there is no room, the change value LC of the fire discrimination level, and the like. LV is used as the fire determination level when the person is not in the room, and LV + LC is used as the fire determination level when the person is in the room and has low sensitivity. Therefore,
In the present specification, LV is referred to as a high-sensitivity fire discrimination level or a fire discrimination level in the absence of room, and (LV + LC) is referred to as a low-sensitivity or fire discrimination level in the presence of room. In the operation described later, first, at the time of initial setting, the storage area R
The contents of the OM 22 are copied to the storage area RAM 24 which is a random access memory, and the storage area RAM 24
The data is read out from and processed. By copying it to the random access memory in this way, it becomes possible when it is desired to change the type or group name of the terminal connected to the main repeater, for example, the fire sensor. is there.

The operation of the fire receiver 1 will be described below with reference to FIG.
And the flowchart of FIG. 10, the flowcharts of FIGS. 11 and 12 for explaining the operation of the main repeater 2, and a diagram showing an example of a list display screen 10 such as a liquid crystal display in the display unit DP1. The operation of the fire alarm system of the invention will be described.

First, the operation of the fire receiver 1 will be described. Following the initial setting (step 102), the main repeaters No. 1 to M connected to the fire receiver 1 will be sequentially described below. Perform processing operation. Explaining only the processing operation for the No. 1 main repeater, first, after changing the sensor settings (step 200) shown in more detail in FIG. 10, the No. 1 main relay connected to the fire receiver 1 is performed. The presence / absence of each room is read from all the presence detectors 8 associated with the repeater and stored in the presence detector output area of the storage area RAM 12 as shown in FIG. The absence is judged (step 108) and is also stored in the storage area RAM 12 (step 11).
0).

In this way, the current contents stored in the storage area RAM 12 are compared with the immediately previous contents stored in the storage area RAM 12 to determine whether or not there is a change in the presence / absence storage contents of each group. It is constantly monitored, and if there is no change (N in step 112), the 1
The status information is received from the master repeater and processed (step 122) to monitor whether or not a fire has occurred (step 124).

If there is a change in any of the stored contents of each group (Y in step 112), the contents of the storage area RAM 12 are sent in order to send a message to that effect to the main repeater.
It is transferred to the storage area RAM 13 as shown in FIG. Then, it is judged whether the change is from the presence to the absence or the change from the absence to the presence of the room, and when the change is from the absence to the presence (N in step 114), the first master in the storage area RAM 13 is determined. All the group names and presence / absence signals stored in the area for the repeater are sent to the first main repeater (step 120).

In the case of the change from being in the room to being out of the room (Y in step 114), immediately after the person has left, there is often cigarette smoke remaining in the room or the room temperature is considerably high. Therefore, after a delay of, for example, several minutes, all the group names and presence / absence signals stored in the No. 1 main repeater area in the storage area RAM 13 are all set to 1
It sends it to the main repeater. That is, in order to perform such a delay, the timer for the first main repeater in the timer group TM1 provided for each main repeater is started (step 116), and the status information is started after the start of the timer. Reception processing (step 122) and fire monitoring processing (step 124) are performed, and the same processing operation for the next main repeater of No. 2 is performed.

In this way, when the processing operation of the main repeaters up to the Mth is completed, and then the processing of the main repeater of the 1st is again carried out, the environment mode is newly changed from the presence of room to the absence or the presence of absence from the room. If there is no changed group, there is no change between the previous contents and the current contents in the storage area RAM 12 at this point (N in step 112), so if the timer is still operating (in step 118). N), the group name and presence / absence signal are not transmitted to the first main repeater. However, if the timer is up (Y in step 118), the storage area RAM1
All the group names and presence / absence signals stored in the No. 1 main repeater area stored in 3 are sent to the No. 1 main repeater (step 120). The timer time from when the timer is activated until the time is up can be set to, for example, 2 to 3 minutes.

After the timer TM1 is started, before the time is up, when the next main repeater is processed again, a group whose environment mode has changed from being in the room to being in the room or not being in the room is newly set. If there is, there is a change between the previous contents and the current contents in the storage area RAM 12 (Y in step 112), so it is determined whether there is a change from being in the room to being in the room or not in the room. If it is determined and the change from the presence of a room to the absence (Y of step 114), the above-mentioned timer TM1 is restarted (step 116). When the restart is applied, the time-out of the timer is extended from the time when the restart is applied to the time when the timer time of another 2-3 minutes elapses. After that, if the timer TM1 has timed up when it comes to the next process for the first main repeater (Y in step 118), the storage area RAM13
All the group names and presence / absence signals stored in the No. 1 main repeater area are sent to the No. 1 main repeater (step 120).

In the flow chart of FIG. 9, when a change from absence to presence is detected (N in step 114), step 12 is immediately executed even if the timer is operating.
Although 0 indicates that the group name and presence / absence signal are all sent to the main repeater, conversely, if the timer is operating, the timer will time out even if there is a change from absence to presence. Until then, the group name and presence / absence signal may not be transmitted.

Further, in the above description, the storage area RAM
It has been explained that when there is a change in the stored contents in 12, all the stored contents in the main repeater area are sent to the main repeater. You may make it transmit only the content. In that case, a timer is provided for each group, and step 1
In 12, it is judged separately for each group whether or not there is a change, and if there is a group that has changed from being absent to being in the room, the group name and the changed presence or absence signal of the group are concerned. If there is a group that immediately sent to the repeater and changed from being in the room to absent, the timer corresponding to that group is started, and when the timer corresponding to that group times out, the group name And the changed presence or absence signal of the group may be sent to the main repeater.

When it is desired to change the set group division or the fire determination level when the user is in the room, step 200 shown in more detail in FIG. 10 is performed. Become.

The operation of changing the setting by operating the fire alarm receiver 1 will be described with reference to FIG. 13 showing the display screen 10. In addition, in FIG. 13, reference numerals 11 to 15 denote resistive film type transparent film touch panels 5 attached to the surface of the LCD.
Screens showing three switches and their switch positions, 11 and 12 are operation switches for selecting setting items, 13 and 14 are operation switches for selecting setting values by increasing or decreasing numerical values or changing alphabets in order, and 15 is , An execution switch for setting and executing the set value on the display and ending the setting change of the sensor, 16 is a cursor which is placed on any set value or the like in the list display screen 10 when selecting an item or the like. is there.

In the detailed flow chart of the "sensor setting change" in step 200 of FIG. 10, first, after the setting change is selected by the operation section OP1 and the display section DP1 (Y in step 201), the operation section OP1 and the display section are selected. The address (management address; ridge floor area number) of the fire sensor whose setting is to be changed or the current setting state of which is to be confirmed is designated by DP1 (step 202). That is, FIG.
3, the building floor district number in the list display screen 10 is designated by the switches 11 to 15 and the cursor 16.

More specifically, it is assumed that only "2nd wing, 3rd floor, 4th district, No. 5" indicating the installation location of the fire sensor is displayed in FIG. 13, and there is no list display screen yet. Consider a case where this is rewritten to, for example, “7th floor, 5th district, No. 7,” and the setting of the fire sensor corresponding to this is changed. First, the cursor 16 is placed at the position of "2 (building)", and it is set to "1 (building)" by pressing "1" of the numeric keypad (not shown) of the operation unit OP1, and the switch 15 is pressed to set. Then the cursor 16 moves to “3 (floor)”,
Since this does not need to be changed, the switch 15 is pressed again to move the cursor 16 to "4 (district)" and the numeric keypad is set to "5 (district)". Further, press the switch 15 to set the district and move the cursor 16 to "2.
"No.", and use the numeric keypad to change to "7 (No.)".
Finally, when the switch 15 is pressed, the number of the fire sensor is set and the designation of the fire sensor (step 202) is completed.

When the sensor is designated (step 202), the fire receiver 1 then designates the designated address stored in the storage area RAM 24 (FIG. 6) in the main repeater 2 which connects the designated fire sensor. It is requested to return the set value of (step 204). In the main repeater 2 which is requested to be returned, the set value is returned through Y of step 402 and step 404 of FIG. 12, so when the returned set value is received (step 206), before this change The conventional setting values and the like are temporarily stored in the storage area RAM 14 (FIG. 5) in the fire receiver 1 (step 208), and the stored contents, that is, the setting values in the storage area RAM 14 are as shown in FIG. , A list is displayed on the display unit DP1 such as LCD (step 210). The list display may show the type of the fire sensor, the terminal address, and the like.

Subsequently, the flow chart checks whether or not there is a change process (steps 212, 218, 226). Since the cursor 16 is currently located at "C", that is, in the "group name" item. , “Group name change” (Y in step 212), and it is determined that the display set value, that is, “C” is entered as the new group name (step 214), and this group name is stored in the storage area RAM 14. When the execution switch 15 is not turned on (step 216) (N in step 230), the set values in the storage area RAM 14 are displayed in a list (step 210), and the procedure to Y in step 212 is repeated, that is, waiting for input. Enter the state of.

The operation of the switches 11 to 15 will be described. Each time the switch 11 is pressed, the cursor 16 on the setting value in the list display screen 10 is moved to the setting value corresponding to the upper (left side when there is left) item, and the switch 12 is lower (right side). The setting value can be selected by sending the setting value at the position of the cursor 16 placed by the constant value addition display or alphabetical order, and the switch 14 by the constant value. By subtraction display or reverse feed in alphabetical order,
The setting value can be entered.

When the cursor 16 reaches one end, it jumps to the other end and repeats in a loop.
For example, if the switch 12 is continuously pressed several times, the cursor 16 starts from C in the example of FIG.
The position moves in the order of → 12.0 → 15 → 18 → 10 → 10 → 3 → C and is repeated in a loop.

Further, the switch 1 is also used for entering the set value.
When the switch 3 is operated to reach the upper limit value, it jumps to the lower limit value and continues to increase, and when the switch 14 is operated, it operates in reverse. For example, when changing the setting of a group name from A to F, if the switch 14 is pressed and held several times starting from C, the values loop in the order of C → B → A → F → E → D → C. Change into a shape.

Next, the operation and operation for changing the setting values of the "group name" and the "fire discrimination level in the room" to A and 13.0 will be described. In the "waiting" state of FIG. 10, starting from the cursor position in FIG. 13, that is, the set value "C" of the "group name", the switch 14 is pressed twice so that the group name is written as "A". (Step 214), the new group name "A" is the storage area R
The value is stored in the relevant part of the AM 14 (step 216), the set value of the storage area RAM 14 is displayed on the list display screen 10 (step 210), and the state of “waiting” is again established.

Next, when the switch 12 is pressed twice and the cursor is moved to "12.0" of "fire discrimination level in the room", "change fire discrimination level in the room" is selected (step 218). Y), then step 220 → 222 →
224 → 230 N → 210 → 212 N → 218 Y
The above is repeated and the state becomes "waiting". Here, press the switch 13 twice to display 12.0 → 12.5 → 13.0.
Then, stop pressing the switch 13 and change the display to "13.0".

When the discrimination level is entered in this way (step 220), the new fire discrimination level "13.0" is stored in the corresponding portion of the storage area RAM 14 (step 2).
22), the change value LC is calculated, and this is also the storage area RAM 14
Is stored in the relevant part of the storage area (step 224), and the storage area R
The set value of AM14 is displayed on the list display screen 10 (step 210), and the "waiting" state is set again.

Here, when the execution switch 15 is pressed (Y in step 230), the new set value in the storage area RAM 14 in which the "group name" and the "fire discrimination level when in the room" are changed is the corresponding main repeater. (Step 232).

Next, the following operation of the main repeater will be briefly described with reference to FIGS. 11 and 12. When a new set value in which the "group name" and the "fire discrimination level when in the room" are changed is transmitted from the fire receiver in step 232 of Fig. 10, the main repeater receives from the fire receiver. Although it is determined to be (Y in step 308), this is not the presence / absence signal (N in step 310) and is not the restoration command (N in step 314).
Enter (step 400).

In FIG. 12, the received signal is not the setting value request (N in step 402), the setting value is changed (Y in step 406), and the "group name" is changed (Y in step 408). Therefore, the new group name is written in the table of the storage area RAM 24 (step 41
0), see if there are other changes (step 418),
The flow goes on.

In this case, there are other changes (step 41).
8 Y), the flow goes through N in step 408 to enable “change fire determination level while in room” (Y in step 412), and writes the calculated change value LC in the table of the storage area RAM 24 (step 414). After that, since there is no other change (N in step 418), the "sensor setting change" (step 400) on the repeater side is completed.

The "set value" is the setting information unique to the fire sensor, and the contents of the changeable "set value" are as follows.

(1) Management address Building, floor, which corresponds to the physical address of the fire sensor on a one-to-one basis,
It shows the district and number, and can be changed. (2) Type Shows the sensitivity classification of the fire sensor. For example, fire sensor type, analog smoke 1, 2, 3 analog heat 60 ° C, 65 ° C, 70 ° C, 75 ° C (3) Group name A group that is switched at the same time when the sensitivity is changed due to changes in the environment. Indicates the name of. (4) Fire discrimination level The level at which the detection signal sent from the fire sensor in an analog amount is discriminated as "fire". (Level converted to smoke density and temperature) When a certain type of fire sensor is selected, there is a standard fire discrimination level corresponding to that type, and this level is automatically set. However, by changing this set value, the level can be set arbitrarily other than the standard. Fire alarm is issued when the output of the fire sensor exceeds this level. If many false alarms occur after the fire sensor is installed, it is possible to obtain a proper level by changing the fire determination level to a slightly higher level. If you still can't make it, change the type above. (5) Changed value The level difference that shifts from the fire determination level to the fire determination level at the time of switching when the sensitivity is changed in response to changes in environmental conditions. (There is a standard value.) (6) Pre-alarm level This is arbitrarily set to a level (high sensitivity level) lower than the fire determination level, and when the detection signal exceeds this level, it indicates that the fire situation is approaching. A warning is issued. This value also has a standard pre-alarm level according to the type, and is automatically set at the same time as the type is selected. (7) Pre-alarm level change value The level difference that shifts from the pre-alarm level to the pre-alarm level at the time of switching when the sensitivity is changed in response to changes in environmental conditions. (There is a standard value) (8) Fire accumulation time The predetermined time when it is judged as a fire when the fire discrimination level is maintained for a predetermined time. (There is a standard value.) (9) Pre-alarm level fire accumulation time The predetermined time when it is judged that a fire warning should be issued when the pre-alarm level is maintained for a predetermined time.
(Standard value) (10) Low sensitivity level This is arbitrarily set to a level higher than the fire discrimination level (low sensitivity level). When the detection signal exceeds this level, an alarm indicating the progress of the fire situation is issued. Smoke control devices that are reported or linked with this are activated. (With standard value)

In addition to the above, instead of changing the "changed value", the "fire determination level at the time of switching (for example, in the absence of room)" may be changed. On the contrary, fix the "fire discrimination level at the time of switching" as a standard value, and
It is also possible to change the "fire discrimination level (when in the room)".

Further, the "pre-alarm level" is not limited to one and may be a plurality of levels, and a "pre-alarm level change value" and a "pre-alarm fire accumulation time" may be provided for each.

In this way, attention can be called from an early stage, the cause of the fire can be picked up early, and the initial fire can be stopped. After the equipment is installed, it can be used as a criterion for changing to a more appropriate type or fire discrimination level. Further, the "low sensitivity level" may have multiple levels.

[0046]

As described above, according to the present invention, the set value indicating the set state of each fire sensor is stored, and the stored set value can be rewritten for each fire sensor by the changing means. Therefore, if you want to change the specifications of the fire sensor for any reason, you can change it for each fire sensor by changing means such as operation on the panel, so you can replace the fire sensor and lay the wiring as in the past. This eliminates the need for work, and has the effect that change operations are easy and quick.

Further, since the set values of the designated fire sensor are stored and displayed in a list, and the item to be changed can be selected and entered from the plurality of items thus displayed, the fire can be performed. It is possible to change while checking the latest set value and entered value of the sensor in a list display, and it is possible to process some or all of the set values that need to be changed at one time, and change operation is easy and omissions etc. This has the effect of reducing mistakes.

[Brief description of drawings]

FIG. 1 is a block circuit diagram showing a fire alarm system according to an embodiment of the present invention.

FIG. 2 is a diagram showing stored contents of a storage area ROM 12 provided in the fire receiver 1 in FIG.

FIG. 3 is a diagram showing stored contents of a storage area RAM 12 provided in the fire receiver 1 in FIG.

FIG. 4 is a diagram showing stored contents of a storage area RAM 13 provided in the fire receiver 1 in FIG.

5 is a diagram showing stored contents of a storage area RAM 14 provided in the fire receiver 1 in FIG.

6 is a diagram showing stored contents of a storage area ROM 22 and a RAM 24 provided in the main repeater 2 in FIG.

FIG. 7 is a diagram showing stored contents of a storage area RAM 23 provided in the main repeater 2 in FIG.

FIG. 8 is a diagram for explaining the operation of the present invention and is a diagram showing grouping of each room in which an in-room detector is provided.

9 is a flowchart for explaining the operation of the fire receiver 1 shown in FIG.

FIG. 10 is a flowchart for explaining the operation of the fire receiver 1 shown in FIG.

11 is a flowchart for explaining the operation of the main repeater 2 shown in FIG.

12 is a flow chart for explaining the operation of the main repeater 2 shown in FIG.

FIG. 13 is a diagram showing an example of a list display screen 10 on the display section DP1.

[Explanation of symbols]

 1 Fire Receiver 2 Main Repeater 3-7 Various Devices 8 In-Room Detector 81-86 In-Room Detector R1-R6 Room ROM12 Address / Type Name Storage Area RAM12 Presence / Absence Data Storage Area RAM13 Presence / Absence Data Storage area for sending RAM14 Storage area for changing set value TM1 Timer group DP1 Display section OP1 Operating section ROM22 Database of unique information of each terminal device RAM22 Storage area for sending fire signal RAM23 Storage area for sending non-existent data RAM24 Database of unique information of terminal equipment

Claims (2)

[Claims] 1. A fire alarm system using a receiver such as a fire receiver or a repeater to which a fire sensor for transmitting information on a change in a physical quantity based on a fire phenomenon is connected. A setting indicating a setting state of each fire sensor. A fire alarm facility comprising first storage means for storing a value, and change means for rewriting the set value stored in the first storage means for each fire sensor. 2. In a fire alarm facility using a receiver such as a fire receiver or a repeater to which a fire sensor for transmitting information on a change in physical quantity based on a fire phenomenon is connected, a setting indicating the setting state of each fire sensor is set. First storage means for storing a value, designating means for designating one of the fire sensors, second storage means for storing a setting value designated by the designating means at the time of designating the fire sensor, A list display means for displaying the stored contents of the second storage means in a list, a selection means for selecting an item to be changed from a plurality of items displayed by the list display means, and an item selected by the selection means. Writing means for writing a value, and the second value with the value written by the writing means as a set value
A fire alarm facility comprising: an entry value storage means to be stored in the storage means; and a setting execution means to store the contents stored in the second storage means into the first storage means.