JP2878320B2 - Fire alarm system - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION [Industrial Application Field] The present invention relates to a fire alarm system.

[Prior Art] In a conventional fire alarm system, a microcomputer and a ROM are provided in a receiver, and a predetermined program is stored in the ROM, and the microcomputer executes an operation according to the program. I am trying to do it.

[Problems to be Solved by the Invention] In the above-mentioned conventional fire alarm system, a receiver or the like is provided with, for example, a timer for accumulation time. The action is to be performed. In this case, the timer time is set in advance in a program stored in the ROM.

When the timer time changes due to a design change or the like, it is necessary to replace the ROM installed in the receiver or the like, or replace the printed circuit board provided with the ROM as it is.

Also, for example, in the display provided in the receiver,
For what to display, how to display, etc.
It is specified in the program stored in the ROM. In this case, in order to change the display object, the display method, and the like, it is necessary to replace the ROM or the printed circuit board on which the ROM is installed, as in the case of changing the timer time.

However, when a part of the program in the receiver is changed due to equipment change or the like, if the ROM is replaced each time, there is a problem that the replacement work is complicated.

SUMMARY OF THE INVENTION It is an object of the present invention to provide a fire alarm system that can easily change a microcomputer program in the fire alarm system.

[Means for Solving the Problems] According to the present invention, an IC card or the like can be exchangeably mounted, information recorded on the mounted IC card or the like is read, and an IC card or the like is newly mounted. Is determined, the program is changed in accordance with the information read from the newly inserted IC card, etc., while the IC card, etc. is newly renewed until the IC card, etc. is newly mounted on the information reading means. Fire monitoring is performed according to the program immediately before mounting.

[Operation] The present invention allows an IC card or the like to be exchangeably mounted, reads information recorded on the mounted IC card or the like, and determines that an IC card or the like is newly mounted. The program is changed according to the information read from the newly mounted IC card, etc., while the IC card is newly mounted until the IC card is newly mounted on the information reading means. Since the fire monitoring is performed according to the above program, it is easy to change the microcomputer program in the fire alarm system.

Embodiment FIG. 1 is a block diagram showing an embodiment of the present invention.

In this embodiment, the receiver R is provided with a plurality of detectors SE.
1, SE2,..., SEn and the reading device CR are connected.

The reading device CR is an example of an information reading unit that reads information recorded on the IC card C.

FIG. 2 is a block diagram showing the above embodiment more specifically.

The receiver R includes the microcomputer MPU1 and the receiver R
ROM11 that stores a program for controlling the microcomputer, and RA that is used as a work memory of the microcomputer MPU1.
M11, RAM 12, a clock T, an interface IF11 for the sensors SE1 to SEn, a display DE and its interface IF12, an interface IF13 for the reader CR, an operation panel OP and its interface IF14.

The reading device CR has a microcomputer MPU2 that controls the entire reading device CR, an interface IF21 with the receiver R, a ROM 21, a RAM 21, and an interface IF22 with the IC card C1.

The IC card C has a RAM 31 and a battery as shown in FIG. 3, and does not have the microcomputer MPU3. The IC card C1 has a RAM 4 as shown in FIG.
This card has a microcomputer MPU3 in addition to the battery 1 and the battery.

Therefore, an IC card C without a microcomputer is directly connected to the bus of the reader CR (the card C is connected in the same manner as a general RAM), and an IC card C1 having a microcomputer MPU3 is connected via the interface IF22. Connected to the bus.

The microcomputer MPU1 is an example of a program changing unit that changes a program executed by the receiver R according to the information read by the information reading unit.

 Next, the operation of the above embodiment will be described.

FIG. 5 is a flowchart showing the operation of the above embodiment, and is a flowchart showing the operation when the information for changing the timer time is stored in the card C.

The program change information is stored in the RAM 31 of the IC card C, and this program change information is assumed to be information for specifying a variable (timer set time of the clock T) in the program stored in the ROM 11.

First, a variable V1 indicating the elapsed time from the occurrence of a fire is initialized to 0 (S1), and data (timer T timer setting time) read from the IC card C by the reader CR is stored in the RAM 11 (S2).

Then, the signals from the sensors SE1 to SEn are read by polling or the like (S3). If the signal from the detector indicates a fire (S4), set the variable V1 of the elapsed time since the fire occurred to 1
Increment (S5), and if the elapsed time variable V1 is smaller than the data D from the reading device CR (that is, the timer set time) (S6), wait for one second (S7), and return to S3.
On the other hand, the signal from the sensor indicates a fire and the elapsed time variable
If V1 is greater than or equal to timer set time D (S6), fire indicator
A fire signal is sent to DE (S9).

By the way, if the signal from the detector does not indicate a fire (S4), the variable V1 of the elapsed time from the occurrence of the fire is initialized to 0 (S11), and the card C is switched to a new one in the reader CR. It is determined whether the card C has been exchanged (S12). If the card C has not been switched, the process returns to S3 to repeat the above operation.

If the card C is switched (S12), the timer setting time is changed, so the flow returns to S2 to read data D from the new card C 'and store the read data D in the RAM 11 (S2). Is executed based on the new data D '. That is, the fire determination process is performed in a state where the timer setting time is newly set. For example, before switching the card C, the timer setting time for fire discrimination was 30 seconds. By inserting a new card C 'into the reader CR, the timer setting time was reduced to 40 seconds. Other timer settings such as 60 seconds can be set.

By doing so, the timer set time can be changed without replacing the ROM 11 or the like, and it is easy to change the timer set time.

FIG. 6 is a flowchart showing the operation of another embodiment of the present invention.

In this embodiment, a plurality of programs are stored in the ROM 11 of the receiver R.
, And one of them can be arbitrarily selected, and the configuration is the same as that shown in FIGS. 1 to 4.

First, the program number is recorded on the IC card C, and the IC card C
Reads the program number stored in the card C
The CR reads it and stores it in the RAM 11 (S31). Then, jump to the start address of the specified program number (S3
2), and sequentially execute the specified program (S3
3). Thereafter, it is determined whether or not the card C has been switched during the program (S34). If the card has not been switched, the program is continuously executed.

On the other hand, if the card C is switched (if the card C has been replaced with a new card C '), the reading device CR reads a new program number stored in the new card C', and reads the new program number. It is stored in the RAM 11 (S31). Then, the program jumps to the start address of the newly designated program number (S32), and executes the newly designated program (S33).

In the operation shown in FIG. 6, it is assumed that the program P1 to be executed first is, for example, a storage-type program, and the next designated program P2 is a non-storage-type program.

In this way, a change from one program to another is easily performed.

FIG. 7 is a flowchart showing the operation of another embodiment of the present invention.

In this embodiment, a program different for each card is stored in the RAM in the card, one of the cards is arbitrarily selected, and the program stored in the selected card is executed by the receiver R. Is an example of
Its configuration is the same as that shown in FIGS.

In the operation of this embodiment, first, the program stored in the ROM 11 is executed (S41), and it is determined whether or not the card C has been switched (exchanged) during the execution of the program (S42). If so, the program at that time is continuously executed. In S42, if the card C is switched, the reader CR reads a new program stored in the newly inserted card C ', and reads the program.
The program is stored in the RAM 11 (S43), and the new program is executed (S44).

If the card is switched again during the execution of the new program (S45), a newer card stored in the third card C "is read (S4).
3), execute the new program (S44).

In this way, if a plurality of cards similar to the IC card C are provided, different programs are stored in each of them, and the card is selected and inserted into the reader CR as needed,
It is very easy to change the program in the fire alarm system.

In addition to the case where the timer set time is changed, the above embodiment can be applied to the case where the display content is changed, the number of data samplings is changed, and the like.

In the above embodiment, an IC card is used as a recording medium to be read by the reading device CR, but an optical card may be used instead of the IC card.

[Effects of the Invention] According to the present invention, it is possible to easily change a program of a microcomputer in a fire alarm system.

[Brief description of the drawings]

FIG. 1 is a block diagram showing one embodiment of the present invention. FIG. 2 is a block diagram showing the above embodiment more specifically. FIG. 3 and FIG. 4 are diagrams showing examples of an IC card used in the above embodiment. FIGS. 5, 6, and 7 are flowcharts showing the operation of the above embodiment. R: Receiver, SE1 to SEn: Detector, CR: Reader, C, C1: IC card.

Claims (4)

(57) [Claims] A fire detector is connected to a fire receiver, the fire receiver has fire information processing means, and the fire information processing means processes information from the fire sensor according to a predetermined program. In a fire alarm system that gives a fire alarm when a fire occurs, an IC card or an optical card can be exchanged, and information reading means for reading information recorded on the attached IC card or the optical card. Card mounting determining means for determining whether or not a new IC card or an optical card is mounted on the information reading means; and detecting that the IC card or the optical card is newly mounted on the information reading means. Information reading means for reading information stored in the newly mounted IC card or optical card when the mounting determination means makes a determination; Program changing means for changing a program which has been executed by the fire information processing means in accordance with the information read by the reading means. The IC card or the optical card is newly provided to the information reading means. A fire alarm system wherein the fire information processing means performs fire monitoring according to a program immediately before the above-mentioned IC card or optical card is newly installed. 2. The receiver according to claim 1, wherein a plurality of programs are stored in the receiver in advance, and
A fire alarm system wherein the information recorded on the card or the optical card is information for selecting one of the plurality of programs. 3. The information recorded on the IC card or the optical card according to claim 1,
A fire alarm system, which is a program executed by the receiver. 4. A fire detector is connected to a fire receiver, said fire receiver having a fire information processing means, wherein said fire information processing means processes information from said fire detector according to a predetermined program. In a fire alarm system that issues a fire alarm when a fire occurs, an IC card or an optical card can be mounted interchangeably, and information reading means for reading information recorded on the mounted IC card or the optical card. Non-volatile storage means for storing a program to be executed by the fire information processing means; card mounting determining means for determining whether or not a new IC card or optical card has been mounted on the information reading means; When the card mounting determining means determines that an IC card or an optical card has been newly mounted on the information reading means, the newly mounted IC Information reading means for reading information stored in a card or an optical card; and program changing means for changing a program which has been executed by the fire information processing means in accordance with the information read by the information reading means. The fire information processing means first executes a program stored in the non-volatile storage means to perform fire monitoring, and a new IC card or optical card is attached to the information reading means. If the card mounting determining means determines that the fire alarm has occurred, the program is changed by the program changing means to perform a fire monitoring.