JPH0330199B2 - - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION [Technical Field] The present invention relates to a disaster prevention system equipped with intelligent repeaters.

[Background Art] FIG. 8 shows the basic configuration of a conventional disaster prevention system of this type, in which a receiver 1 constituting a central monitoring and control device is connected to a plurality of repeaters 3 via a main line 2. A line 4 is connected to each repeater 3, and each line 4 is connected to a smoke detector, heat sensor, etc. that transmits analog signals such as current level and voltage level to the repeater 3 according to sensing operation. disaster prevention sensor 5
is connected. Receiver 1 sends a transmission signal consisting of a pulse code signal including an individually assigned address signal to each repeater 3 via main line 2, and repeater 3 detects that the address signal matches its own address. At times, the transmission signal is taken in, and an address signal from a disaster prevention sensor 5 connected to the line 4 is converted into a pulse code signal, which is then sent back to the receiver 1 via the main line 2 as a transmission signal. The receiver 1 performs judgment control such as the occurrence of a fire, a forecast, etc. based on the address signal converted into a pulse code signal.

By the way, in such a conventional system, as the number of disaster prevention sensors 5 increases, most of the transmission is occupied by analog information transmission, which complicates the signal processing at the receiver 1 and significantly reduces the operational efficiency of the system. There was a problem.

[Object of the Invention] The present invention has been made in view of the above-mentioned problems, and its purpose is to improve the efficiency of information transmission on trunk lines, to disperse risks in the event of a failure, and to improve the efficiency of information transmission in the case of a failure. To provide a disaster prevention system that can be managed on the receiver side.

[Disclosure of the Invention] FIG. 1 shows the circuit configuration of a receiver 1 and a repeater 3 used as an embodiment, and the repeater 3 has a criterion for discriminating analog signals from a disaster prevention sensor 5 connected to a line 4. A memory 6 such as a RAM for writing and storing data, a determining unit 7 that compares setting standard data of the memory 6 with analog signals to be input, and determines the processing level of fire outbreak, forecast, etc.; and a determining unit an output unit 8 that generates an output S such as a drive signal for an alarm bell or a control output for smoke prevention and exhaust control based on the determination result of the determination unit 7; and a signal conversion unit 9 that converts the determination result of the determination unit 7 into a pulse code signal. and a signal processing unit 10 that determines whether the address matches when receiving a transmission signal and controls each unit, and also sends out the output of the signal conversion unit 9 as a return signal. I'm starting to get more. The receiver 1 transmits data to each repeater 3 based on input data from an input section 11 such as a keyboard.
a storage unit 12 for writing and storing judgment criterion data;
It is comprised of a signal processing calculation unit 13 that transmits a transmission signal to the repeater 3, receives the transmitted return signal, and performs processing for determining the content. Figure 2 shows the overall configuration of a disaster prevention system using the repeaters 3 described above, and the receiver 1 is connected to each repeater 3.
A transmission signal consisting of a pulse code signal including an address signal individually assigned to the repeater 3 is sent out via the main line 2, and when the address signal matches its own address, the repeater 3 takes in the transmission signal, and Disaster prevention sensor 5 connected to line 4
Determination information based on the state of is sent back as a transmission signal.

Next, the main operations of this embodiment will be explained based on the flowcharts shown in FIGS. 3 and 4.

When a hard reset is applied to the receiver 1 by turning on the power or operating a reset switch, the internal circuit of the receiver 1 is cleared, and each repeater 3 is sequentially called to perform an initial reset. After this, the receiver 1 determines whether or not the start switch SW for setting the initial start is turned on.
When the start switch SW is turned on, the receiver 1 reads out the judgment standard data of each repeater 3 from the storage part 12 under the control of the signal calculation processing part 13 and transfers the judgment standard data to each repeater 3 in sequence. , if there is no input, the system starts into steady processing. On the other hand, in the repeater 3, the command from the receiver 1 side,
When an initial reset is applied when the power is turned on, the internal circuits are initialized for areas other than the memory 6, and it is determined whether or not the judgment reference data has been transferred, and if there is transfer, the memory is reset under the control of the signal processing unit 10. Write the judgment standard data transferred to 6. Now, when the transfer of the criterion data is completed, the receiver 1 sends a signal to each repeater 3 instructing it to return the contents of the criterion data written in the memory 6. When the repeater 3 receives the return command, it returns the judgment criterion data written in the memory 6. In the receiver 1, the signal processing calculation unit 13 compares the returned judgment standard data with the previously transferred judgment standard data to determine whether or not the judgment standard data was correctly transmitted to the repeater 3, and then compares the data. If they do not match, the determination reference data is retransmitted to the repeater 3 until it is correctly received. Then, when it is confirmed that the determination reference data has been correctly transferred to all repeaters 3, the system is started to perform regular processing. Further, in the case of the repeater 3, when there is no longer a return command or the return is completed, the process shifts to normal processing. It is also recommended to perform the above-mentioned operation when changing the judgment criterion data.

FIG. 5 shows the circuit configuration of the receiver 1 and the repeater 3 used in the embodiment of the second invention. be. On the other hand, the receiver 1 is equipped with a writable memory 14 for writing judgment reference data of each repeater 3, and a storage section 15 in which judgment reference data for controlling between repeaters 3 is written. .

Next, the main operations of this embodiment will be explained using flowcharts shown in FIGS. 6 and 7.

If a hard reset is applied to the receiver 1 by turning on the power or turning on a reset switch, the internal circuit of the receiver 1 will be cleared, and each repeater 3 will be sequentially called to perform an initial reset. Thereafter, the contents of the memory are checked to determine whether or not the criterion data for each repeater 3 has been written, and if it has been written, the system is started to perform steady processing. In addition, if the data has not been written, a command signal is sent to each repeater 3 to return the judgment standard data written in the respective storage section 6', and the returned judgment standard data of each repeater 3 is assigned to each one. The data is written to an area of the memory 14 that is located in the memory 14. The repeater 3 performs an initial reset based on a command from the receiver 1 or when the power is turned on, clears the internal circuit, and then determines whether there is a return command from the receiver 1 side. If the judgment criterion data written in the storage section 6' is not found, the process shifts to normal processing.

When the system start step in the flowchart of each embodiment is completed, the process returns to RET.

[Effects of the Invention] As described above, the present invention provides a rewritable memory in the repeater, writes judgment criterion data set and transferred on the receiver side into this memory, and stores the judgment criteria of the judgment criterion means. As data, the judgment standard data stored in the memory of the repeater can be returned to the receiver by a return command from the receiver after the writing of the judgment standard data is completed, or the judgment standard data of the judgment standard means is stored in advance. A storage unit is provided in the repeater, and the receiver calls the repeater to return the judgment criteria data stored in the storage unit of the repeater, and the judgment criteria returned to the writable memory provided in the receiver. Since the data is written, the judgment standard data of the repeater can be centrally managed on the receiver side, and since the data source is in one place, there is no duplication, and the judgment standard data can be easily changed without confusion. By providing judgment criteria in the receiver, the judgment processing operations at the receiver can be reduced, and the burden on the transmission system can be reduced, resulting in more efficient system operation.

[Brief explanation of the drawing]

FIG. 1 is a circuit configuration diagram of the main part of the first invention, FIG. 2 is a circuit configuration diagram of the entire system of the same, FIGS. 3 and 4 are flowcharts for explaining the operation of the same, and FIG.
The diagrams are circuit configuration diagrams of the main parts of the second invention, Figures 6 and 7.
The figure is a flowchart for explaining the operation of the same as above, and FIG. 8 is a circuit configuration diagram of the entire conventional system.
is the receiver, 2 is the main line, 3 is the repeater, 4 is the line, 5
is a disaster prevention sensor, 6 is a memory, 6' is a storage section, 7 is a judgment section, 8 is an output section, 9 is a signal conversion section, 10 is a signal processing section, 11 is an input section, 12 is a storage section, 13 is a signal processing section The arithmetic unit 14 is a memory.

Claims (1)

[Claims] 1. A repeater that receives information from a disaster prevention sensor connected to a corresponding line, and the above information received by the repeater by connecting the repeater via a transmission trunk line and calling the repeater. It consists of a receiver that sends back information, a means for receiving information from a disaster prevention sensor to a repeater, and a judgment standard that compares the received information with judgment standard data to judge the processing level of fire outbreak, forecast, etc. In a disaster prevention system that includes means and returns information on the judgment result of the judgment criterion means to the receiver when called from the receiver, the repeater is provided with a rewritable memory, and this memory is stored on the receiver side. The judgment standard data set and transferred is written and used as the judgment standard data of the judgment standard means. After the writing of the judgment standard data is completed, the judgment standard data stored in the memory of the repeater is sent by a return command from the receiver. A disaster prevention system characterized by sending information back to the receiver. 2. A repeater that receives information from a disaster prevention sensor connected to a corresponding line, and a receiver that connects the repeater via a transmission trunk line and calls the repeater to send back the information received by the repeater. The relay is equipped with a means for receiving information from a disaster prevention sensor, and a judgment standard means for comparing the received information with judgment standard data to judge the processing level of fire occurrence, forecasting, etc. In a disaster prevention system that sends information on the judgment result of the judgment standard means back to the receiver when called from the machine, the repeater is provided with a storage section that stores the judgment standard data of the judgment standard means in advance, and the information is transmitted from the receiver to the repeater. What is claimed is: 1. A disaster prevention system characterized by calling a relay device to return judgment standard data stored in a storage section of the repeater, and writing the returned judgment standard data into a writable memory provided in a receiver.