JP2522778B2 - Disaster prevention device - Google Patents

Description

Description: FIELD OF THE INVENTION The present invention relates to a disaster prevention device such as a fire alarm facility, a gas leak alarm facility, or an anti-theft facility, and in particular, effectively manages and grasps the connection status of terminal equipment by a host device. The present invention relates to a disaster prevention device that can be operated.

[Prior Art] In a disaster prevention facility in which a plurality of terminal devices such as a fire sensor and a repeater are connected to a receiver that manages and controls these terminal devices, in the receiver side, connection information of each terminal device or You must know the type information and status information.

In addition, especially in a disaster prevention system in which multiple receivers are hierarchically arranged and the terminal device is connected to the lowest receiver, the upper receiver also knows the type information about the connected terminal device. It is necessary to keep it.

Japanese Unexamined Patent Publication No. 58-127292 discloses a disaster prevention facility configured to transmit type information of each terminal device to a receiver together with monitoring information indicating an operating state of a sensor.

Further, in Japanese Patent Laid-Open No. 60-65398, there is provided a fire alarm device capable of transmitting the type information of the detector to the receiver without affecting the number of signal bits of the detection information. Basically, the transmission and the transmission of detection information are separated temporally.Specifically, when the type information is called from the receiver, the terminal device returns information according to the specified level that differs according to the type of detector. A receiver is used to determine the type, and after this type determination, the process shifts to calling detection information, and a fire is determined based on the type determination result that was previously performed from the received detection information. There is.

However, since the types disclosed in both of these publications transmit the type information at every polling, the transmission speed is lowered and there is a problem in efficiency. In the first place, since the type information does not change dynamically, once the information is transmitted, it is not necessary to transmit the same information thereafter, but in the above publication, such information is transmitted every time. Therefore, there is a drawback that the information becomes redundant, resulting in a decrease in transmission rate and eventually delay of emergency information such as a fire.

Further, the above publication does not describe layering of a plurality of receivers in the first place, and if the means disclosed in the above publication is applied, terminal devices are provided to each of the plurality of layered receivers. When trying to get the type information of
The transmission speed is significantly reduced.

SUMMARY OF THE INVENTION Therefore, an object of the present invention is to reduce the transmission rate by automatically registering a terminal type as a type map in each of the receiving units formed by layering the receiving units at the time of initial setting. There is no fire, gas leak or theft to provide disaster prevention equipment.

To achieve this object, according to the present invention, a plurality of receivers are hierarchically arranged, a terminal device is connected to the lowest receiver, and the lowest receiver receives a message from the terminal device by polling. A disaster prevention device for collecting information, the first means being provided in the lowest receiver and storing unique information about the terminal device based on information from the terminal device at the time of initial setting. Provided in each of the receivers, issues a transfer request to a lower receiver, collects unique information of the terminal device from the lower receiver, and collects the information when a transfer request is made from the upper receiver. Second means for transferring the unique information to a higher-order receiver, and receivers other than the lowest one, which store the unique information of the terminal device collected from the lower-order receiver by the second means Third means to do , Disaster prevention apparatus is provided, characterized in that it comprises a.

[Operation] At the time of initial setting, the map of unique information such as the type information of the terminal device connected to the lowest receiver is sequentially transferred from the lower hierarchy to the higher hierarchy receiver. Will eventually be automatically collected by the receiver at the top of the hierarchy, and the unique information of the area in charge will remain in the receiver at the hierarchy in the collection process.
As a result, it is possible to save the labor of previously installing the maps relating to the terminal equipment in each unit, and the transfer of the unique information is not performed during the normal monitoring operation of the disaster prevention device, so that the transmission speed is improved.

Embodiment An embodiment of the present invention will be described below with reference to the drawings.

FIG. 1 shows the overall system configuration of disaster prevention equipment to which the present invention is applied. A main receiver 20 is connected to a host system 10 such as a CRT panel, and the main receiver 20 converts a plurality of protocols. Part 30 is connected and each protocol conversion part 30
A plurality of terminal devices 40 such as sensors and repeaters are connected to the. The host system 10, the main receiver 20, and the protocol conversion unit 30 each include a CPU, and practically all are configured as a receiver. Therefore, hereinafter, the host system 10 is also referred to as the highest receiver, and the protocol conversion unit 30 is also referred to as the lowest receiver.

FIG. 2 shows the internal circuit of the host system 10 including the CRT, that is, the highest-order receiver.
A program read-only memory ROM11, a work random access memory RAM11, a terminal device registration random access memory RAM12, and a switch SW11 for setting the number of a connected lower device, It includes a display unit DP1, an operation unit OP1, an audio equipment unit SP1, and transmission / reception units TR11 to TR1n for connecting to lower devices.

FIG. 3 shows an internal circuit of the main receiver 20, which includes a central processing unit CPU2 and a program read-only memory.
ROM21, working random access memory RAM21,
Random access memory RAM22 for terminal device registration,
Switch SW21 to set whether or not the host device is connected
, Switch SW22 for setting the number of the connected lower device, display unit DP2, operation unit OP2, and audio device unit SP2
And a printer P2, a transmission / reception unit TR20 for transmission / reception with the host system 10, transmission / reception units TR21-TR2n for transmission / reception with the protocol conversion unit 30, and the like.

FIG. 4 shows the protocol conversion unit as the lowest receiver.
The internal circuit of 30 is shown. The central processing unit CPU3, the program read-only memory ROM31, the terminal device registration read-only memory ROM32 storing the address and type of the terminal device, and the working Random access memory RAM31, random access memory RAM32 for terminal device registration, display unit DP3, operation unit OP3, audio device unit SP3, printer P3, transmission / reception unit TR30, transmission / reception unit T
Includes R31 and etc.

FIG. 5 shows the lowest receiver, that is, the protocol converter.
A repeater for a sensor as an example of the terminal device 40 connected to 30
The figure shows a smoke-proof smoke repeater, an analog sensor, and the like. The inside of the repeater for a sensor is enlarged and shown in detail, but other repeaters have the same configuration. The sensor repeater includes a central processing unit CPU4, a program read-only memory ROM41, a type setting read-only memory ROM42, a work random access memory RAM41, and an address setting switch SW41.
And a type setting switch SW42, a transmission / reception unit TR40 for performing transmission / reception with the protocol conversion unit 30, and the like.

The operation of the disaster prevention equipment configured as described above will be described below. Prior to that, the parts relating to the present invention will be briefly described. First, the lead receiver provided in the lowest-order receiver, that is, the protocol conversion unit 30. Only Memory RO
The M32 stores unique information about the address and type of the terminal device to be connected to the protocol conversion unit 30. At initialization, the first means (block 10 in FIG. 6A)
1 to 110), request the type information to each terminal device,
The type information returned from each terminal device is compared with the corresponding type information stored in the read-only memory ROM 32, and if they match, it is stored in the terminal device registration random access memory RAM 32. to register. Then the second
Means (blocks 116 to 120 in FIG. 6A) to transfer the contents registered in the random access memory RAM 32 to the main receiver 2.
Random access memory RAM22 for terminal device registration in 0
Transfer to. In the main receiver 20, the second of the main receiver 20
Means (blocks 201-207 and block 208 of FIG. 7A)
To 211) register the type information of the terminal device transferred from the protocol conversion unit 30 in the random access memory RAM 22 for terminal device registration, which is the third means, and store the registered device type information of the terminal device. The data is transferred to the higher-level system 10 which is a higher-level receiver. Similarly, in the higher-level system 10, the second means (the block in FIG. 8) of the higher-level system 10 is also used.
301 to 307) register the type information of the terminal device transferred from the main receiver 20 in the random access memory RAM 12 for terminal device registration which is the third means. Due to the above operation at the time of initial setting, the type information that is the unique information of each terminal device required for each receiver in the subsequent normal monitoring and control operations is the random access information for registering the terminal device of each receiver. It is obtained from the registered contents in the memory.

6A and 6B are protocol conversion units shown in FIG.
30 is a flowchart for explaining the operation of 30, in which after starting at block 100, setting an initial value at block 101, and initializing an address to 0 at block 102, polling of the terminal device is started. After the polling of the n-1th terminal device is completed, the address value is incremented by 1 (block 103), and then the polling of the nth terminal device is started. First, a type information request command is added to the address code. Then, the data is sent to the transmission trunk line L (block 104), and at the same time, a timer is started (block 105). When the signal from the protocol conversion unit is received by the terminal device of the address,
For example, the address code is added to the terminal information and returned. The protocol conversion unit determines whether or not the return signal from the terminal device is received within a certain period of time and whether or not there is type information (blocks 106, 107 and 108), and the return signal is not received or is received. However, if there is no type information (No at block 108), it is determined that the terminal device does not respond and the printer P3 prints that the nth terminal does not exist (block 109). After that, if the polling final address is not reached yet (No in block 110),
The address value is incremented by 1 (block 103) and a similar polling operation is performed for the next address.

If the return signal from the corresponding terminal device is received and the type information is received within a certain time (No at block 107), the received type information A of the nth terminal is stored in the working random access memory RAM31. Yes (block 111).
Next, the type information B for the nth terminal is read from the terminal device registration read-only memory ROM 32 (block 11).
2) The type information A and B are compared (block 113). A
If B and B match (No at block 113), the type information B of the nth terminal is stored in the random access memory RAM 32 for terminal device registration (block 114). If they do not match (block 113 at block 113). No), the fact that the type information of the nth terminal does not match is printed on the printer P3 (block 115). After that, if the address value has not reached the final address, the same polling operation is performed again for the next address.

When polling is completed for all terminal devices in this way, the terminal device registration random access memory RAM 32 stores accurate type information, that is, unique information about the currently connected terminal devices. In this case, in this embodiment, the random access memory RAM 32 for registering the terminal device has an area for the maximum connectable terminal device, and the address code of the terminal device with A = B and the type information are in the area. The area of the nonexistent or inconsistent terminal device is stored in a blank area. However, even if the random access memory RAM 32 for terminal device registration stores only the number, address code, and type information of the terminal device with A = B, the capacity of the random access memory can be saved. good.

In this way, polling is completed for all terminal devices and the random access memory for terminal device registration
When the unique information about the device currently connected to the RAM 32 is collected (acknowledgement of block 110), the operation of transferring the collected content to the main receiver 20 which is the next higher device is performed.
First, at block 116, a determination is made as to whether or not the main receiver 20 is present, and if not, normal monitoring operation begins at block 121 of Figure 6B. Whether or not the main receiver is connected is set by a switch or the like, but in this case, the determination in block 116 can be omitted.

If the main receiver 20 is connected (block 116
In response to this, the main receiver 20 is notified that the type data is ready to be transferred (block 117), and the corresponding interrupt flag is set on the main receiver side. If the main receiver sets the corresponding interrupt flag, the transfer request is returned. Therefore, it is judged whether or not this transfer request is returned (block 118). If it is returned, the terminal device registration random number is sent. Read the stored contents of the access memory RAM 32 and send it to the main receiver 20 (block 119). The transfer request notification is then cleared by clearing the transfer request interrupt flag set by the main receiver 20 (block 120).

The protocol conversion unit then enters the normal monitoring state with the contents of the terminal device registration random access memory RAM 32, starting from block 121 of FIG. 6B. FIG. 6B shows the operation for fire monitoring as an example.

In FIG. 6B, first at block 121, address n
Is initialized to 0 and the address value is incremented by 1 in block 122, and then the polling operation for normal monitoring is started.

Prior to the polling operation, the random access memory RAM32 for registering the terminal device is first checked to see if the terminal device with the address to be polled is connected.
By examining the contents of (block 12
3). If the terminal device is not connected (block 1
23), the polling operation is not performed on the terminal device, and the address n is the final polling address N.
If not (block 124 not), the address value is incremented by one more at block 122 and polled for the next address. In this way, unnecessary polling operations are avoided.

In the polling operation for the terminal device at the address n, it is first judged from the contents of the working random access memory RAM31 whether or not there is a control command for the nth terminal (block 125). If there is a control instruction, the control instruction is added to the address code and sent (block 12
6), if no control command is needed (block 125 no),
A status information request command is added to the address code and sent (block 127). In this case, the control command is an on or off command to the control circuit of the terminal device, an on or off command to the test circuit, or the like.

When a signal is returned from the terminal device (block 128
Then, the received information is stored in the working random access memory RAM 31 (block 129), and it is determined whether it is fire information (block 130). If it is not fire information, the address value is incremented by 1 in block 122 via block 124 and the process proceeds to the next polling operation. If it is fire information, it is determined based on that information whether a fire has occurred. If there is a fire (block 131), display D
After the fire area is displayed on P3, if there is no fire again, move directly to the next polling operation.

When the polling operation up to the final terminal is performed and the information of all terminal devices is collected, an operation of transferring the information to the main receiver 20 which is a higher-level device is then performed. First block 13
After it is determined in 3 whether or not the main receiver is present, the main receiver is notified of transfer preparation (block 134), and the transfer preparation flag in the main receiver is set. When the return signal indicating that the transfer acceptance flag is set by the main receiver is received (acknowledgement of block 135), the reception information of the working random access memory RAM31 is sent to the main receiver (block 136). Based on the information sent to the main receiver, the main receiver requests the transfer of the control command to the terminal device if necessary. Therefore, after sending information to the main receiver, if there is a transfer request from the main receiver, the transfer request flag is set (acknowledgement of block 137), and the control command from the main receiver to the terminal equipment is sent. Stored in the working random access memory RAM31 (block 1
38), this control command is sent to the terminal device during the next polling operation in fire monitoring (block 126).

After block 138, normal fire monitoring from block 121 is entered.

Next, the operation of the main receiver 20 shown in FIG. 3 will be described with reference to FIGS. 7A and 7B.
This will be described with reference to the flowchart in the figure.

In FIG. 7A, following the start of block 200 and the initial setting of block 201, the lower device connected to the main receiver 20, that is, the number of the protocol conversion unit 30, is read from the connected lower device number setting switch SW22 (block
202). Whether or not the protocol conversion unit is connected is set in advance in the connected lower device number setting switch SW22 by an operator or the like.

After reading the numbers of the connected protocol conversion units 30, it is sequentially determined whether or not there is a transfer preparation notification from the protocol conversion units of those numbers (block 203). This is performed by sequentially checking whether or not the type information transfer preparation completion interrupt flag corresponding to each protocol conversion unit is set. If there is no transfer preparation notification (No in block 203), the process proceeds to block 207 to determine whether or not there is a similar transfer preparation notification to the protocol conversion unit of the next number. If there is a transfer preparation notification in the kth protocol converter (acknowledge at block 203),
The transfer request is notified to the k-th protocol conversion unit (block 204). This is done by first determining which protocol converter has set the interrupt flag and setting the interrupt flag of the type information transfer request of the protocol converter. The type information of the terminal device returned from the kth protocol conversion unit by notifying the transfer request in block 204 is stored in the kth area of the terminal device registration random access memory RAM 22 (block 205), and thereafter, By clearing the interrupt flag set by the protocol conversion unit that has completed the transfer or return, the transfer preparation completion notification from the kth protocol conversion unit is erased (block 206). afterwards,
After block 207, the process proceeds to block 203, where it is judged whether or not there is a transfer preparation notification to the protocol conversion unit of the next number.

In this way, when all type information in the protocol converter is collected (acknowledgement in block 207), block 2
Transfer from 08 to higher level equipment. In this case, the determination of whether all information has been collected is block 202.
This is performed by comparing and discriminating the number of the subordinate device read in step 3 and the storage condition of the terminal device registration random access memory RAM 22.

In block 208, it is first judged whether or not a higher-ranking device, that is, a higher-rank system 10 is connected to the main receiver. This is set in advance in the DIP switch SW21 for determining whether or not the host device is connected,
It is performed by determining the setting content. next,
The transfer ready completion is notified to the host system by setting the type information transfer ready interrupt flag of the host system 10 (block 209). Then, it is determined whether or not there is a transfer request from the host system depending on whether or not the interrupt flag of the type information transfer request is set by the host system (block 210). After receiving a transfer request from the host system, a random
The contents stored in the access memory RAM 22 are read and sent to the host system (block 211).

The flowchart shown in FIG. 7B starting from block 212 is the normal operation of the main receiver performed based on the terminal device connection information transferred from the protocol conversion unit and stored in the terminal device registration random access memory RAM 22. Is explained.

First, in block 212, it is judged whether or not there is an interrupt flag which is set by the protocol conversion unit and is ready for terminal information transfer. If yes (block 212 no),
A transfer acceptance is sent to the kth protocol conversion unit by determining which protocol conversion unit has set the interrupt flag for transfer preparation and setting the transfer acceptance interrupt flag of the protocol conversion unit (block 213). After that, the terminal information received from the kth protocol conversion unit is transferred to the work random access memory RA.
Store in M21 (block 214). In block 215, it is determined whether or not there is a control command for the terminal device connected to the kth protocol conversion unit. If there is, a control command is sent to the kth protocol conversion unit (block 216), and if there is not, it remains as it is. , Go to block 217, erase transfer ready signal from protocol converter k, and block
The process returns from 212 to the sequence for determining whether or not the transfer is ready.

If the determination in block 212 is negative, the terminal information stored in the work random access memory RAM21 is stored in the terminal device registration random access memory RAM22 by the operations of blocks 203 to 206. The analysis / discrimination is performed by referring to the type information (block 218), and it is determined based on the discrimination / analysis result whether display is necessary (block 219). If the display is required, analysis / discrimination is performed. After the determination result is displayed on the display unit (block 220), if there is no determination, it is determined in block 221 whether or not control is required next time. If control is required, the control command is stored in the work random access memory RAM21 (block 222), the transfer request is notified to the corresponding protocol conversion unit (block 223), and if there is no need for control, it is left as it is. , And transfer information from the block 224 to the host device, that is, the host system 10.

In the transfer sequence to the host system 10, it is first judged whether or not there is a host device (block 224), and then it is judged whether or not information needs to be transferred to the host device (block 225). If the information needs to be transferred, it notifies the host device of the transfer preparation by setting the transfer information transfer preparation flag of the host device (block 22).
After 6), if it is not necessary to transfer the information again, the next block 227 determines whether or not there is a transfer request. Whether or not there is a transfer request is determined by whether or not the interrupt flag of the transfer information transfer request is set by the host device, and if there is a transfer request (block 22).
7), send the terminal information or analysis result of the random access memory RAM21 for work to the host device (block
228) Deleted the transfer request from the host device (block 22)
After 9), if there is no transfer request again (No in block 227), the process goes to the first block 212 and the same sequence is repeated.

FIG. 8 is a flow chart for explaining the operation of the host system 10. The operation of the part of the host system 10 relating to the present invention is the same as that of the main receiver 20. That is, in blocks 300 to 307 of FIG. 8, the type information is collected from the lower device, that is, the main receiver, but the operation is such that the main receiver collects the type information from the protocol conversion unit. Through 207 respectively correspond to the sequences. Similarly, blocks 308 to 319 in FIG.
Also, regarding the above, since it corresponds to blocks 212 to 223 of the flowchart of FIG. 7B for the main receiver, the description thereof will be omitted. Note that in this embodiment, the higher-level system 10 is the highest-level device without any higher-level device, so the sequence corresponding to blocks 224 to 229 in FIG. 7B is not shown in FIG.

FIG. 9 is a flowchart showing the operation of the terminal device shown in FIG. 5 as an example. After the start in block 400 and the initial value setting in block 401, it is determined whether or not a signal is received ( Block 402). If there is a received signal, it is judged whether or not it matches the address of the terminal device set by the DIP switch SW41 (block 403), and if there is a match, the transmitted command signal is used as a working random number.・ Access memory RAM4
Store in 1 (block 404). It also reads status information from the receiving circuit or control circuit, that is, whether the receiving circuit is receiving a fire signal from the fire detector, or whether the control circuit is controlling the controlled device, and so on. Store in access memory RAM41 (block 4
05). Next, the instruction signal stored in the working random access memory RAM 41 is decoded (block 406), and whether the instruction requests type information (block 407),
It is determined whether monitoring information is requested (block 408), a control command (block 409), or a test command (block 410). In the case of the type information request (No in block 407), the type information set in the type setting switch SW42 or stored in the type setting read-only memory ROM42 is read and sent (block 411). In case of monitoring information request (block 4
08), read and send status information from the working random access memory RAM 41 (block 412). If it is a control command (No at block 409), turn on or off the control circuit (block 413), then
The status information is read from the access memory RAM 41 and sent (block 412). Finally, for a test instruction (acknowledge block 410), turn the test circuit on or off (block 4
14) After that, working random access memory RAM41
Read and send status information from the (block 412).
After sending type information or status information, block 40
Return to 2 and wait for the next signal.

Note that the lowest-order receiver may store the unique information collected from the connected terminal device as it is and transfer this unique information to the higher-order receiver. The unique information of the terminal device, which is stored in advance in the memory at the time of manufacturing, may be transferred to the upper receiver.

In addition to the type information, the unique information transferred from the lowest receiver to the highest receiver is the unique number associated with the terminal device, such as the terminal device number and address code, and the presence or absence of a test circuit. Can also include various types of information.

Further, in the above, the confirmation whether the terminal device is properly connected is performed by the protocol conversion unit which is the highest receiver, but this confirmation is not the lowest receiver,
It may be performed by a higher-order receiver, for example, a main receiver that determines a fire occurrence and creates a control command related thereto.

[Effect of the Invention] According to the present invention as described above, the map of the unique information of the terminal device stored in the lowest receiver is changed from the lower hierarchy to the upper hierarchy receiver at the time of initial setting or initial operation. Since the receivers in each layer store the type map of the specific information of the terminal device in sequence, the type information does not need to be transferred during the normal monitoring operation of the disaster prevention device, and the transmission speed is improved. effective.

[Brief description of drawings]

FIG. 1 is a block diagram showing the overall configuration of a disaster prevention device to which the present invention can be applied, and FIG. 2 is a block circuit diagram showing the internal circuit configuration of the host system (top receiver) 10 in FIG.
FIG. 3 is a block circuit diagram showing the internal circuit configuration of the main receiver 20 in FIG. 2, and FIG. 4 shows the internal circuit configuration of the protocol conversion unit (least receiver) 30 in FIG. FIG. 5 is a block circuit diagram, FIG. 5 is a block circuit diagram showing the internal circuit configuration of the terminal device 40 in FIG. 1, and FIGS. 6A and 6B explain the operation of the protocol conversion unit (the lowest receiver). FIG. 7A and FIG. 7B are flow charts for explaining the operation of the main receiver, FIG. 8 is a flow chart for explaining the operation of the upper system (top receiver), and FIG. It is a flow chart for explaining operation of a terminal unit. In the figure, 10 is a host system (top receiver), 20 is a main receiver, 30 is a protocol converter (bottom receiver), 40 is a terminal device, RAM11, RAM21, RAM31, and RAM41 are work random Access memory, RAM12,
RAM22 and RAM32 are random access memories (storage means for storing type information) for terminal device registration, SW11 is a switch for connecting lower device numbers, SW21 is a switch for connecting / disconnecting upper devices, and SW22 is a device number for connecting lower devices. Switch, SW
41 is an address setting switch, SW42 is a type setting switch, ROM32 is a terminal device registration read-only memory, R
OM42 is a read-only memory for setting type, DP1, DP2,
And DP3 are display parts, OP1, OP2, and OP3 are operation parts, SP1, S
P2 and SP3 are audio equipment, and P2 and P3 are printers.

Claims (1)

(57) [Claims] 1. A plurality of receivers are hierarchically arranged, a terminal device is connected to the lowest receiver, and the lowest receiver collects information from the terminal device by polling. A disaster prevention device, which is provided in the lowest receiver and which is provided in each of the receivers, with first means for storing unique information about the terminal device based on information from the terminal device at the time of initial setting. Is sent to the lower-order receiver to collect the unique information of the terminal device from the lower-order receiver, and when the higher-order receiver requests the transfer, the collected unique information is transferred to the higher-order receiver. Second means for transferring to the receiver, and third means for storing the unique information of the terminal device, which is provided in the receiver other than the lowest rank and is collected from the lower rank receiver by the second means. Is characterized by Disaster prevention device.