JPH07272177A - Fire signal receiver - Google Patents

Abstract

PURPOSE:To obtain a fire signal receiver capable of easily executing the operation of securing a spare address or the operation of withdrawing a terminal equipment at the time of successively and circulatingly calling the terminal equipment by preparing a terminal equipment calling means, a response signal reception means and a judging means. CONSTITUTION:The receiver RE reads the address of the terminal equipment judging discontinuity from RAM 29 and sends a discontinuity judgement selecting command which requires information on class ID by each terminal equipment. At the time of receiving a signal from the terminal equipment, the receiver RE reads class ID of the terminal equipment corresponding to the address from RAM 28. And, when class ID received from the terminal equipment of the address is not coincident with class ID read from RAM 28, the receiver RE regards it as the class of the terminal equipment changed after installing, stores class ID received from the terminal equipment of the address in RAM 28 and displays that class ID of the terminal equipment of the address is changed, on a display part 32.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a fire receiver connected to a plurality of terminal devices via signal lines, and the fire receiver sequentially calls the terminal devices by polling, collects predetermined information, and performs predetermined control. Is about fire receivers that perform.

[0002]

2. Description of the Related Art Conventionally, a fire receiver is connected to a plurality of terminal devices via a signal line, and the fire receiver sequentially calls the terminal devices by polling, collects predetermined information, and executes a predetermined control. The receiver is known.

In this conventional example, different addresses are given to each of a plurality of terminal devices in advance, and the terminal devices are sequentially and cyclically called by using these addresses. To assign an address to the terminal device,
The terminal device is provided with a micro switch in advance, and by setting the micro switch, the address is set digitally or the address is stored in the semiconductor memory. Also, the address is set and the type of the terminal device is set. The data such as is set.

Then, when the call is received from the fire receiver, the terminal device concerned collects the data collected up to that time,
The data such as the type of the terminal device of its own is sent back to the fire receiver. By receiving some data from the terminal device, that is, by receiving a response from the terminal device, the fire receiver collects data or performs a predetermined control according to the response content. When the fire receiver receives a response from the terminal device, the fire receiver determines that the terminal device is normal. On the other hand, when the fire receiver does not receive the response from the terminal device, the fire receiver determines that the terminal device has an abnormal connection.

[0005]

If the terminal device is not installed at present but the spare address is to be reserved for the future, when the fire receiver sequentially cyclically calls the terminal device, the spare device The address will also be called by the fire receiver, and it will be determined that the terminal device corresponding to the spare address has an abnormal connection. Therefore, it is necessary to install a dummy terminal device at the spare address. That is, when the fire receiver sequentially and cyclically calls the terminal devices, there is a problem that the work for securing a spare address for the future is complicated.

There is also a case where the terminal device once installed is removed for convenience, but in this case as well, the removed terminal device is determined to be in an abnormal connection, as in the case of the above spare address, and a fire occurs. When the receiver sequentially cyclically calls the terminal device, it is necessary to install a dummy terminal device in order to remove the terminal device, and there is a problem that the work of removing the terminal device is complicated.

The present invention provides a fire receiver in which, when the fire receiver sequentially and cyclically calls the terminal equipment, it is easy to secure a spare address for the future or to remove the terminal equipment. That is the purpose.

[0008]

According to the present invention, a fire receiver and a plurality of terminal devices are connected via a signal line, and the fire receiver sequentially calls the terminal devices by polling, collects predetermined information, and sets a predetermined information. In the fire receiver that executes the control of, the terminal device connected to the fire receiver is stored in the memory, and the terminal device that cannot receive the response signal after being called by the fire receiver is not stored in the memory. When the terminal device is a terminal device, it is not determined that the terminal device has an abnormal connection.

[0009]

According to the present invention, the terminal equipment connected to the fire receiver is stored in the memory, and the terminal equipment which cannot receive the response signal after being called by the fire receiver is the terminal equipment not stored in the memory. At some point, it is not determined that the terminal device has an abnormal connection, so it is easy to secure a spare address for the future and to remove the terminal device.

[0010]

DESCRIPTION OF THE PREFERRED EMBODIMENTS FIG. 1 is a block diagram showing a fire receiver RE which is an embodiment of the present invention.

The fire receiver RE includes an MPU (microprocessor) 10, ROMs 11 to 13, RAMs 21 and R.
It has AM23-29, the operation part 31, the display part 32, the transmission / reception part 33, and these IF31a-33a.

The ROM 11 is a storage area for programs and the like relating to the flowcharts shown in FIGS. ROM
Reference numeral 12 denotes a terminal device map table storage area for storing the respective addresses of the terminal devices such as the fire detector SE, the relay device, and the transmitter, and the ID such as the type of the terminal device in the initial setting state. The ROM 13 is a storage area of an interlocking control table that interlocks and controls a controlled device such as a smoke control device based on a fire signal from a terminal device.

Now, the polling selecting method used in the above embodiment will be briefly described. In the polling selecting method, the terminal equipment connected to the fire receiver RE is divided into a plurality of groups in advance, and when called from the fire receiver RE, only the terminal equipment whose state has changed responds basically. Is. The response timing differs between system polling and point polling. In system polling, the response timing of terminal devices differs for each group, and for point polling, the response timing differs for each terminal device. If there is no response by system polling, the state of all terminal devices has not changed at all, and if there is a response by system polling, the state of one of the terminal devices belonging to the group that made the response has changed. , Point polling the terminal devices belonging to the group one by one.

Returning to FIG. 1, the RAM 21 is a work area, and the RAM 23 stores the group number g of the group to which the terminal device that has sent the response signal belongs, based on the timing of receiving a pulse during system polling. This is the area to be used. RAM24, at the time of point polling,
This is an area for storing the number m in the group of terminal devices that have transmitted a response signal based on the timing of receiving the response pulse. The RAM 25 is a storage area that stores control contents executed in system polling. RA
M26 is an area for storing a terminal device number to be controlled in selecting and its control content (for example, test command, fire confirmation command, level stop command). RAM2
Reference numeral 7 is a storage area for status information collected from each terminal device.

The RAM 28 is an area for storing the address and the type (ID) of the terminal device actually connected. That is, at the time of initial setting, the address and type of the terminal device stored in the ROM 12 are loaded. If the address is set but the terminal device is not connected, only that address is stored in the RAM 28. The ID corresponding to the address is not stored in the RAM 28. After the initial setting, the content stored in the RAM 28 is changed according to the information collected by the disconnection monitoring selecting.

The RAM 29 is an area for storing the address of the terminal device determined to be in the disconnection state by the disconnection monitoring selecting.

That is, the RAM 28 is an example of an ID storage memory for storing an ID corresponding to the address of the terminal device to be connected to the fire receiver. MPU10 and ROM11
Is an example of a terminal device calling means in which a fire receiver sequentially calls a terminal device via an address. For an address called by the terminal device calling means and the fire receiver cannot receive a response signal, an ID storage memory This is an example of a determination unit that does not determine that the terminal device of the address has an abnormal connection when the ID is not stored in. The transmitting / receiving unit 33 is an example of a response signal receiving unit that receives a response signal from the terminal device called by the terminal device calling unit.

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

FIG. 2 shows the fire receiver R in the above embodiment.
It is a flow chart which shows the basic operation of E.

First, initial setting is performed (S1), system polling is performed (S2), and when there is a response from the terminal device to this system polling (S3), point polling is performed for the group that has responded. (S4), when the terminal device responds to this point polling (S5), the terminal device that responds is selected, and status information is returned from the terminal device (S6). ), A control interrupt process is performed when a control interrupt occurs (S7, S8), and the process returns to system polling (S2).

On the other hand, when there is no response from the system polling (S3), since no state change has occurred in all the terminal equipment, disconnection discrimination selection for discriminating disconnection is sequentially performed for each terminal equipment (S9). In this disconnection discrimination selecting, when an address whose ID is not stored in the RAM 28 is called, the connection abnormality is not discriminated for the terminal device having the address.

FIG. 3 shows the fire receiver R in the above embodiment.
It is a flowchart which shows the specific example of disconnection discrimination selection (S9) by E.

First, the receiver RE reads the address n of the terminal device to be subjected to the wire disconnection determination from the RAM 29, and sends the wire disconnection determination selecting command SAD (n) .CM3 for requesting the information of the type ID to the terminal device ( S11),
When a signal is received from the terminal device (S12), the type ID of the terminal device corresponding to the address n is read from the RAM 28 (S13), and the type ID received from the terminal device of the address n matches the type ID read from the RAM 28. If not (S14), it is considered that the type of the terminal device has been changed after installation, and the type I received from the terminal device at the address n
D is stored in the RAM 28 and the fact that the type ID of the terminal device at the address n has been changed is displayed on the display unit 32 (S1).
5). Then, the address n of the terminal device is incremented by 1 (S16), and when the address n becomes the final address, the address n is set to "0" in preparation for the next cycle.
(S18).

On the other hand, a disconnection discrimination selecting command SAD (n) .CM requesting the terminal device for information on the type ID.
When 3 is sent (S11), if the signal from the terminal device cannot be received within the predetermined time (S21), it is normally judged that the terminal device at the address n has an abnormal connection.
In this case, the ID of the terminal device at the address n is stored in the RAM 2
Search from 8 (S22), RAM28 for address n
If the ID is not stored in (S23), it is obvious that the terminal device is not installed for the address n, so it should not be judged that the connection is abnormal, and the address n is incremented by 1 as it is (S16). ).

However, when the ID of the terminal device at the address n is searched from the RAM 28 (S22), if any ID is stored in the RAM 28 for the address n (S23), the terminal device is connected for the address. Nevertheless, since there is no response from the terminal device, it is determined that the connection is abnormal, and this is stored in the RAM 27, and a signal indicating that the terminal device at the address n is abnormal in connection (that is, the disconnection state). Signal) is sent to the display unit 32 (S24).

In the above embodiment, the terminal device connected to the fire receiver is stored in the memory, and the terminal device which cannot receive the response signal after being called by the fire receiver is not stored in the memory. When the device is a device, it is not determined that the terminal device has an abnormal connection, so there is no need to install a dummy terminal device at a spare address, and it is easy to secure a spare address for the future. There is also no need to install a dummy terminal device when removing the terminal device once installed.
It is easy to remove terminal equipment.

In the above embodiment, if the address n is called and there is no response within a predetermined time, the existence of the terminal device corresponding to the address n is checked by looking at the ID in the RAM 28. , Address n is called, if there is no response within a predetermined time, ROM1
The existence of the terminal device corresponding to the address n may be checked by looking at the map table of No. 2.

Further, when the addresses are sequentially called, if it is known in advance that the terminal device corresponding to a certain address is not connected (it is found to be the spare address or the address of the removed terminal device). If so, you can skip that address and call the next address.

To do so, the flowchart shown in FIG. 3 may be modified as follows. That is, after the address n is retrieved from the RAM 29 in step S11, steps S22 and S23 are executed. That is,
The ID corresponding to the address n is read from the RAM 28,
If the ID is stored, the command of SAD (n) / CM3 is sent. If the ID corresponding to the address n is not stored, the address n is incremented by 1 and the ID corresponding to the new address n is read. , Skip the address until the address where the ID is stored is found. Further, in this way, when it is found that the ID corresponding to the address n is stored, the command of SAD (n) / CM3 is sent, and after a predetermined time has passed (S21).
Omits the operations of reading an ID from the RAM 28 (S22) and determining the presence / absence of an ID (S23), and stores information indicating that the terminal device at the address n has an abnormal connection (S24).

That is, the fire receiver is connected to a plurality of terminal devices via a signal line, and the fire receiver sequentially calls the terminal devices by polling, collects predetermined information, and executes predetermined control. In the above, an ID storage memory for storing an ID corresponding to the address of the terminal device to be connected to the fire receiver is provided, and the fire receiver sequentially calls the terminal device through the address, but the ID is stored in the ID storage memory. For a terminal device having an address that is not stored, a terminal device calling unit that does not call may be provided.

The above embodiment is an example in which the polling selecting method is adopted, but the above embodiment can be applied to a case where a terminal device is sequentially called by using a method other than the polling selecting method. .

Further, in the above embodiment, when the terminal device does not respond within a predetermined time from the calling terminal device, it is detected whether or not the corresponding ID is stored. Alternatively, if the terminal device to be called does not respond even if the terminal device is called a predetermined number of times, it may be detected whether or not the corresponding ID is stored.

Further, in each of the above-described embodiments, when a response is made from the terminal device having the address in which the ID is not stored in the ID storage memory, it may be determined that the terminal device is abnormal.

[0034]

According to the present invention, when the fire receiver sequentially and cyclically calls the terminal equipment, it is easy to secure a spare address for the future or to easily remove the terminal equipment. Play.

[Brief description of drawings]

FIG. 1 is a block diagram showing a fire receiver RE which is an embodiment of the present invention.

FIG. 2 is a flowchart showing a basic operation of the fire receiver RE in the above embodiment.

FIG. 3 is a flowchart showing a specific example of disconnection discrimination selecting (S9) by the fire receiver RE in the embodiment.

[Explanation of symbols]

 RE ... fire receiver, 10 ... MPU, 11 ... program ROM, 28 ... terminal ID table RAM, 29 ... disconnection function RAM.

Claims (3)

[Claims] 1. A fire in which a fire receiver and a plurality of terminal devices are connected via a signal line, and the fire receiver sequentially calls the terminal devices by polling, collects predetermined information, and executes predetermined control. In the receiver, an ID storage memory for storing an ID corresponding to an address of a terminal device to be connected to the fire receiver; and a terminal device call for sequentially calling the terminal device by the fire receiver via the address. Means; a response signal receiving means for receiving a response signal from the terminal equipment called by the terminal equipment calling means; an address called by the terminal equipment calling means and the fire receiver cannot receive the response signal, A determination means that does not determine that the terminal device of the address has an abnormal connection when the ID is not stored in the ID storage memory; Fire receiver, characterized in that it comprises. 2. The determination device according to claim 1, wherein the terminal device is abnormal when a response is received from a terminal device having an address in which the ID is not stored in the ID storage memory. Fire receiver characterized by being. 3. A fire in which a fire receiver and a plurality of terminal devices are connected via a signal line, and the fire receiver sequentially calls the terminal devices by polling, collects predetermined information, and executes predetermined control. In the receiver, an ID storage memory that stores an ID corresponding to an address of a terminal device to be connected to the fire receiver; and the fire receiver sequentially calls the terminal device through the address, A fire receiver comprising: a terminal device calling unit that does not call a terminal device having an address in which an ID is not stored in the ID storage memory.