JPH08249578A - Terminal equipment of fire alarm facilities - Google Patents

Abstract

PURPOSE: To visually confirm that a terminal equipment has normally received a signal from a fire receiver without fail by detecting the coincidence between an address sent out of a reception part and its own address and outputting a coincidence detection signal from an output terminal. CONSTITUTION: When a repeater C receives a reception signal from the fire receiver, a microprocessor 10 and a ROM 21 detect whether the transmitted address matches with the address of the repeater C or not and when they are matched with each other and an instruction from the fire receiver is a state information collection, connected terminal state information is collected from the connected terminal equipment and returned through a transmission/reception circuit 44 to the fire receiver. At the same time, a receiving state output port P2 is set at 'H' for a prescribed time by setting a prescribed area inside a RAM 31 to a counter, for example. Therefore, a receiving state output terminal T1 connected to the receiving state output port P2 is turned to 'H'. When a measurement instrument is connected to the receiving state output terminal T1, it can be visually confirmed without fail that the repeater C has normally received the signal from the fire receiver.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention assigns a unique address to each terminal device, and the fire receiver and each terminal device communicate with each other based on the assigned address to perform a predetermined operation on the terminal device. The present invention relates to a polling type fire alarm system.

[0002]

2. Description of the Related Art In a conventional polling system, a fire receiver sends a predetermined address and a predetermined command,
The terminal device receives the address and the command, and when the received address is the self-address of the terminal device, the terminal device executes the operation according to the command following the address.

[0003]

By the way, in the above-mentioned conventional example, the fire receiver and the terminal equipment, for example, the repeater communicate with each other through the address, but this communication is completely visible from the outside of the repeater. Therefore, it is impossible to judge whether the operation of the repeater is normal or abnormal by only visually observing the repeater.

However, since a signal being communicated between the repeater and the fire receiver is generated in the signal line connecting the repeater and the fire receiver, an oscilloscope or the like is used for the signal line. By connecting a measuring instrument, the signal can be taken out and the signal waveform can be displayed on the display.

However, the signal thus taken out may be a signal sent from the repeater, or may be a signal sent by another repeater, and is sent from the repeater. There is a problem that only the signal cannot be visually recognized. There is also a problem that it is not possible to visually confirm whether or not the repeater has normally received the signal from the fire receiver.

The above-mentioned problem is not limited to the repeater, but similarly occurs in other terminal devices such as fire detectors and controlled devices.

[0007] It is an object of the present invention to provide a terminal device of a fire alarm facility, which makes it possible to reliably confirm that a certain terminal device normally receives a signal from a fire receiver.

It is another object of the present invention to provide a terminal device of a fire alarm system which can reliably visually recognize only the transmitted signal when a certain terminal device transmits a signal to a fire receiver. Is.

[0009]

According to a first aspect of the present invention, there is provided address coincidence detecting means for detecting a coincidence between the address sent from the receiving section and the self address, and the address is sent from the receiving section. When the address match detection means detects that the address and the self address match,
It has a reception state output terminal that outputs a coincidence detection signal indicating that both addresses coincide with each other.

The invention according to claim 2 has a transmission state output terminal for outputting a transmission signal transmitted by the terminal device when the terminal device is transmitting a predetermined signal to the receiving section.

According to a third aspect of the present invention, there is provided address match detection means for detecting a match between the address sent from the receiving unit and the self address, and the address sent from the receiving unit matches the self address. When the address match detection means detects that the two addresses match, it outputs a match detection signal indicating that both addresses match, and also has a transmission / reception state output terminal that outputs a transmission signal transmitted by the terminal device. Is.

[0012]

According to the first aspect of the invention, the terminal device is provided with a reception state output terminal for outputting a match detection signal when the address sent from the receiving unit and the self-address of the terminal device match. Therefore, by connecting a measuring instrument such as an oscilloscope to the reception state output terminal, it is possible to surely visually confirm that the terminal device normally receives the signal from the fire receiver.

According to a second aspect of the present invention, when the terminal device of its own is sending a predetermined signal to the receiving section, a transmission state output terminal for outputting only a sending signal sent by the terminal device is provided. Since it is provided in the terminal equipment, by connecting a measuring instrument such as an oscilloscope to the reception status output terminal, when the terminal equipment sends a signal to the fire receiver,
Only the transmitted signal can be surely visually recognized.

According to a third aspect of the present invention, the coincidence detection signal indicating that the address transmitted from the receiving unit and the self address coincide with each other is output, and at the same time, the transmission is performed by only the own terminal device. Since a transmission / reception status output terminal for outputting a signal is provided, by connecting a measuring instrument such as an oscilloscope to the reception status output terminal, it is possible to visually confirm that the terminal equipment has normally received the signal from the fire receiver. Further, when the terminal device sends a signal to the fire receiver, the sent signal can be surely visually recognized.

[0015]

FIG. 1 is a block diagram showing a repeater C which is an embodiment of the present invention.

The repeater C includes a microprocessor 10 and
ROM 21 for storing programs, ROM 22 for storing various data, work RAM 31, and repeater C
RAM 32 for storing its own address and type, and RAM 3 for storing information from the terminal connected to the repeater C
3, the interfaces 41, 42 and 43, and a transmission / reception circuit 44 as transmission / reception means having a serial / serial converter, a serial / parallel converter, a transmission circuit, a reception circuit, etc. for transmitting / receiving signals to / from the fire receiver. Have.

The microprocessor 10 controls the entire repeater C and executes the program of the flowchart shown in FIG.
1 and a transmission status output port P2.

Further, the microprocessor 10 and the ROM 2
1 is the address sent from the fire receiver and the repeater C
Is an example of an address coincidence detecting means for detecting a coincidence with the self-address of the relay receiver, and when it is detected that the address transmitted from the fire receiver and the self-address of the repeater C coincide with each other, It is also an example of a means for outputting a match detection signal indicating that the addresses match, and further, when the relay C is sending a predetermined signal to the fire receiver,
It is also an example of means for outputting a transmission signal transmitted only by the repeater C.

The reception status output port P1 is a port for outputting a coincidence detection signal indicating that the address sent from the fire receiver and the self address match, and the reception status output port P1 is a repeater. It is connected to a reception state output terminal T1 provided on the surface of C, and this reception state output terminal T1 is an example of the reception state output terminal. When monitoring the operating state of the repeater C, a measuring instrument such as an oscilloscope is connected to the reception state output terminal T1.

The transmission status output port P2 is a port for outputting only the transmission signal transmitted by the relay C when the relay C is transmitting a predetermined signal to the fire receiver. The port P2 is connected to the transmission state output terminal T2 provided on the surface of the repeater C, and the transmission state output terminal T2 is an example of the transmission state output terminal. When monitoring the operating state of the repeater C, a measuring device such as an oscilloscope is connected to the transmission state output terminal T2.

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

FIG. 2 is a flow chart showing the operation of the repeater C in the present invention.

First, when a received signal is received from the fire receiver (S1), the received address in the received signal is the repeater C.
(S2), and if the received address is the same as the self address, the reception status output port P2 is set to a counter as a timer by setting a predetermined area in the RAM 31 for a predetermined time. "H"
(S3). Therefore, the reception state output terminal T1 connected to the reception state output port P2 is "H".
become. The reception status output port P2 is "L" when the reception address does not match the self address or when the predetermined time has elapsed.

Therefore, by connecting the measuring device to the reception state output terminal T1, it can be surely confirmed that the relay device C has normally received the signal from the fire receiver. Also,
Since the reception status output terminal T1 is provided on the surface of the repeater C, it is not necessary to open the cover or the like of the repeater C, and the repeater C
It is possible to easily visually recognize that the signal has been normally received from the fire receiver.

When the received address matches the self-address as described above (S2), if the command from the fire receiver is status information collection (S4), the terminal status from the terminal device connected to the repeater C is changed. Information (fire state or normal state) is collected (S5), and the collected terminal information is transmitted / received by the transmission / reception circuit 44.
It is returned to the fire receiver via (S6). Along with this, the collected terminal information is sent to the transmission status output port P2.
(S7). In this case, the transmission status output port P
2 is connected to the transmission state output terminal T2, the collected state information, that is,
The transmission signal transmitted by the relay C is output, and in this case, only the transmission signal transmitted by the relay C is output to the transmission state output terminal T2. The transmission status output terminal T2
The output signal output to the receiver may be longer than the signal sent to the receiving unit by the transmission / reception circuit 44, or may be slightly deviated. That is, the same signal may be used. Further, the length of the signal may be changed by a switch or the like.

Therefore, when the repeater C sends a signal to the fire receiver, when the measuring device such as an oscilloscope is used, only the sent signal can be surely visually recognized.
Moreover, since the transmission status output port P2 is connected to the transmission status output terminal T2 provided on the surface of the repeater C, the sending signal sent by the repeater C can be easily visually recognized.

Although the repeater C is provided with the reception state output terminal T1 and the transmission state output terminal T2 in the above embodiment, only one of the reception state output terminal T1 and the transmission state output terminal T2 is provided. May be provided.

FIG. 3 is a block diagram showing a repeater C1 which is another embodiment of the present invention.

The repeater C1 is basically the same as the repeater C, except that a microprocessor 11 is provided instead of the microprocessor 10, and the microprocessor 11 is provided with a transmission / reception state output port P3. A transmission / reception state output terminal T3 is connected to the transmission / reception state output port P3, and the transmission / reception state output terminal T3 is provided on the surface of the repeater C1.

The microprocessor 11 and the ROM 21 are an example of address coincidence detecting means for detecting the coincidence between the address transmitted from the fire receiver and the self-address of the repeater C1, and are also transmitted from the fire receiver. It is an example of a means for outputting a coincidence detection signal indicating that the address and the self address coincide with each other and for outputting a transmission signal transmitted by the repeater C1. Further, the transmission / reception state output port P3 outputs a coincidence detection signal indicating that the address transmitted from the fire receiver and the self address coincide with each other, and also outputs a transmission signal transmitted only by the relay C1. Is the port to Therefore, the transmission / reception state output terminal outputs a coincidence detection signal indicating that the address transmitted from the fire receiver and the self-address coincide with each other, and also outputs the transmission signal transmitted by the repeater C1. Is.

In the repeater C1, as in the case of the repeater C, it can be surely and easily visually confirmed that the repeater C1 has normally received the signal from the fire receiver, and
When the repeater C1 sends a signal to the fire receiver, the sent signal can be reliably viewed.

In the above embodiment, other terminal devices such as fire detectors and controlled devices may be used in place of the repeaters C and C1, and instead of the fire receiver, repeaters and the like. You may make it use another receiving part.

[0033]

According to the first aspect of the present invention, it is possible to confirm that the terminal equipment normally receives the signal from the fire receiver.

According to the invention described in claim 2, when the terminal device sends a signal to the fire receiver, it is possible to confirm only the sent signal.

According to the third aspect of the present invention, it can be surely confirmed that the terminal device normally receives the signal from the fire receiver, and the terminal device sends the signal to the fire receiver. In this case, there is an effect that the transmitted signal can be confirmed.

[Brief description of drawings]

FIG. 1 is a block diagram showing a repeater C that is an embodiment of the present invention.

FIG. 2 is a flowchart showing an operation of the relay device C according to the present invention.

FIG. 3 is a block diagram showing a repeater C1 which is another embodiment of the present invention.

[Explanation of symbols]

 C, C1 ... Repeater, 10, 11 ... Microprocessor, P1 ... Reception status output port, P2 ... Transmission status output port, P3 ... Transmission / reception status output port, T1 ... Reception status output terminal, T2 ... Transmission status output terminal, T3 ... Send / receive status output terminal, 21 ... ROM.

Claims (3)

[Claims] 1. A receiving unit sends a predetermined address and a predetermined command, a terminal device receives the predetermined address and a predetermined command, and when the received address is a self-address, the address In the fire alarm equipment in which the terminal device executes the operation according to the subsequent command, a transmitting / receiving means for transmitting / receiving a signal such as the address to / from the receiving unit; an address transmitted from the receiving unit and the self address Address match detecting means for detecting a match with; and when the address match detecting means detects that the address sent from the receiving section matches the self address, both addresses match. And a reception status output terminal that outputs a coincidence detection signal indicating that the terminal equipment of the fire alarm facility. 2. When the receiving unit sends a predetermined address and a predetermined command and the terminal device receives the predetermined address and the predetermined command, and the received address is the self address, the address In a fire alarm facility in which the terminal device executes an operation according to a subsequent command, a transmitting / receiving means for transmitting / receiving a signal such as the address to / from the receiving unit; and the terminal device sending a predetermined signal to the receiving unit. And a transmission state output terminal that outputs a transmission signal transmitted by the terminal device when the fire alarm facility is installed. 3. The receiving unit sends a predetermined address and a predetermined command, the terminal device receives the predetermined address and a predetermined command, and when the received address is a self-address, the address In the fire alarm equipment in which the terminal device executes the operation according to the subsequent command, a transmitting / receiving means for transmitting / receiving a signal such as the address to / from the receiving unit; an address transmitted from the receiving unit and the self address Address match detecting means for detecting a match with; and when the address match detecting means detects that the address sent from the receiving section matches the self address, both addresses match. A transmission / reception state output terminal that outputs a coincidence detection signal indicating that the transmission signal is transmitted from the terminal device;
A terminal device for a fire alarm facility, which has: