JPS6019559B2 - fire alarm system receiver - Google Patents

Description

[Detailed Description of the Invention] The present invention relates to a fire alarm system receiver, and its purpose is to be able to issue fire alarms even during testing, and to enable efficient system operation during testing. To provide a fire alarm system receiver.

In the conventional so-called P-type fire alarm system,
As shown in Figure 5, thermal and other sensors 1 installed in various places in the building, sensors la for detecting bonito, and transmitters 2 such as push buttons for fire alarms are placed in designated areas depending on their installation location. Each sensor 1, la and transmitter 2 in this group 8U are divided into groups (by floor or by area divided by each floor) and branched into respective area sensing lines 3 for each group. connect and introduce these district sensing lines 3 directly into the receiver body 5,
Further, the district bell 7 was configured to be driven directly from the receiver body 5 via another bell drive line 8.

Therefore, in such a P-type fire alarm system, since the district sensing line 3 provided for each district is directly introduced into the receiver body 5, the number of lines by the district sensing line 3 [i.e. As the number of districts where the transmitters 2 are grouped by location increases, the number of incoming lines to the receiver body 5 also increases, and the number of man-hours and costs required for wiring construction also increases. When it is required to drive the bell 7 in each appropriate region, it becomes necessary to wire the bell drive line 8 corresponding to each region where the district bell 7 is installed, which also increases the number of wires and the wiring. There was a problem of increased construction man-hours and costs. Therefore, conventionally, as shown in Fig. 6, each district sensing line 3 is introduced into a district repeater 4 corresponding one-to-one, and when a fire occurrence detection signal is input to the district sensing line 3, this is transmitted to the district. Within repeater 4, that area repeater 4
Create a unique information signal, such as a parallel logic signal, an amplitude modulation signal with different frequencies, a serial logic signal, or a combination thereof, and send this information signal to the receiver body 5.
The so-called R
A type of fire alarm system is provided. However, in the R-type fire alarm system, the information signal is unilaterally sent from the district repeater 4 to the receiver body 5, so the district repeater 4 and the receiver body 5 are connected. It is impossible to monitor abnormal conditions such as disconnection of the main transmission line 6 or abnormal operation of the district repeater 4, and when a fire outbreak is detected in multiple districts at the same time, the receiver body 5 There is a problem in that it is difficult to separate and distinguish between districts, and furthermore, since the district bell 7 is directly driven by the district repeater 4 via the bell drive line 8, it is a P type. It is not necessary to introduce the bell drive line 8 all the way to the receiver body 5 as in the example above, but on the other hand, when a fire outbreak is detected in a certain district, not only the district bell 7 of that district but also the In cases where it is desired to drive the district bells of the same floor or adjacent districts at the same time, this is impossible or extremely difficult, resulting in a problem that the configuration of the district repeater 4 becomes complicated. The present invention has been provided in view of the above points, and one embodiment of the present invention will be described in detail below with reference to the drawings.

As shown in FIG. 1, the fire alarm system of the present invention has the same basic configuration as the conventional example shown in FIG. 6, and belongs to the so-called R-type fire alarm system. , and by assigning a predetermined address to each district repeater 4, the receiver body 5 sequentially calls the district repeaters 4 cyclically, and sends predetermined control command information d to the called district repeater 4. control command information such as "drive the district bell 7", "check the line of the district sensing line 3", "transfer the signal status of the district sensing line 3"], and transmit the control command information from the called district repeater 4. District information including information on the signal status of each district sensing line 3 is sent back to the receiver body 5, and the district information is simply information indicating whether the district sensing line 3 in that district is normal or abnormal. It also includes information indicating that the district repeater 4 is in a normal operating state. Therefore, the main transmission line 6 is, for example, a clock pulse transmission line for controlling the period between the district repeater 4 and the receiver body 5 and performing time management, and a transmission line for calling a predetermined district repeater 4 from the receiver body 5. It is composed of a transmission line for the address logic information pulse and the control command information pulse to the called district repeater 4, a transmission line for the district information pulse from the called district repeater 4, etc. , the main transmission line 6 may be configured by a pair of transmission lines by employing time division multiplex transmission means. FIG. 2 shows a flowchart of the main operation of the receiver body 5 as described above. When the power of the receiver body 5 is turned on in step 1, first all circuits of the receiver body 5 and each district repeater 4 are turned on in step 2. After resetting and making the initial value normal, the address of the district repeater 4 corresponding to the district number N=1 is selected in step 3, and sequential calling of each district repeater 4 is started.

That is, in step 4, data information is sent and received to and from the district repeater 4 with district number N=1, and the transmitted control command information includes address information, district sensing line 3 signal information return command information, and district relay Based on the above return command information and confirmation command information, the district repeater 4 of the district number N=1 selected by the address information sends the signal information of the district sensing line 3 and the district relay. Information confirming the normal operation of device 4 will be returned as district information. Therefore, after data information is transmitted and received to and from the district repeater 4 with district number N=1 in step 4, it is determined in step 5 whether the received district information is normal or not, and if there is an abnormality, the district Determine whether the signal information of the sensing line 3 is abnormal [input of fire occurrence information] or whether there is a problem with the operating status of the district repeater 4 [including disconnection information of the main transmission line 6], and if it is abnormal [NO] In step 6, the district number and the details of the abnormality are displayed, and at the same time, a buzzer sounds, a trouble indicator light lights up, etc. in case of trouble and abnormality. In addition, if this abnormality information indicates a fire outbreak, although it is not shown in the flowchart of FIG. The circuit can also be configured to return district bell 7 drive command information when transmitting and receiving. On the other hand, the judgment result in step 5 is normal [Y
ES], in step 7 it is determined whether the signal transmission and reception to all the district repeaters 4 is completed or not, and if the signal transmission and reception to all the district repeaters 4 is not completed, that is, step When the judgment result in step 7 is Rikishu O, in step 8, add 1 to the district number N to make the district number N11, and with this district number N+1, the operations of steps 4 to 7 are performed again, and so on. Add 1 to the district number N one after another, starting with the district repeater 4 of district number 1, then the district repeater 4 of the largest district number M.
It is used to send and receive signals by sequentially calling up to . After calling and transmitting/receiving data signals to the district repeater 4 of district number M, when step 7 is reached, the determination result of step 7 becomes YES, and step 3 is repeated.
The process then returns to call the district repeater 4 with district number N=1 and send and receive data signals, and the above-described operations are cyclically repeated. FIG. 3 is a test flowchart relating to the present invention. When the test switch 12a provided in the receiver body 5 is turned on in step 1, the test light 14 provided in the receiver body 5 lights up to indicate that the test is in progress in step 2. Thereafter, in step 3, the address of the district repeater 4 corresponding to district number N=1 is selected, and sequential calling of each district repeater 4 is started. That is, in step 4, data information is transmitted and received to and from the district repeater 4 of district number N=1. The control command information transmitted and received is the continuity test information of the district sensing line 3 and the district repeater 4 based on the above return command information and confirmation command information from the district repeater 4 of the district number N=1 selected by the address information. Normal operation confirmation information will be returned as district test information. Then, in step 5, it is determined whether the returned monitoring data is fire information due to an actual fire or test information.
That is, it is determined whether the information about the actual fire is the information from the test.
That is, the above discrimination is made by performing signal processing in an appropriate manner to distinguish whether the information is actual fire information or test information. Now, if the determination result is NO in step 5, monitoring data is received in step 6. After that, in step 7, the test results are registered, and then in step 8, if the signal transmission and reception to all the district repeaters 4 is not completed, that is, if the judgment result in step 8 is NO, then in step 9, the district number N 1 is added to set the district number N+1, and steps 4 to 8 are performed again with this district number N11. Thereafter, 1 is added to the district number N in the same way,
From district repeater 4 of district number 1 to the largest district number M one after another
This system sequentially calls up to district repeater 4 to send and receive signals related to the test. If the determination result is YES in step 8, that is, when the test of the district repeater 4 with the largest district number M is completed, in step 10, the district number -
The test result registered in step 7 of the district repeater 2 corresponding to No. N=1 is called up, and in step 11 it is determined whether the test result is good or not. If the determination result is N○, that is, the test result is poor, a display and an alarm are issued in step 12. On the other hand, in step 11, YES
If S is rolled, that is, the test result is good, step 12
fly. Next, in step 13, it is determined whether or not the determination of pass/fail of the test results for all district numbers has been completed.If the determination result of step 13 is NO, that is, the determination for all district numbers has not been completed. , in step 14, add 1 to the district number N to make the district number N
+1, and step 11 again with this district number N11
~Perform step 13, and then add 1 to the district number of the aircraft, call up the test results from district number 1 to the maximum district number M one after another, and judge the test results. . And in step 13, Y
When the ES determination result is obtained, the test light 14 is turned off in step 15. On the other hand, if the determination result in step 5 is YES, that is, if there is a real fire, steps 6 to 1
4, and in step 16, the fire is displayed, the district number where the actual fire is occurring, and the main bell.
The district bell is rung and the test light 14 is turned off in step 15. FIG. 4 shows a front view of the embodiment of the present invention, in which numeral 9 indicates an abnormality content display area, and numerals 10 and 10a indicate area number display areas, so that two area numbers can be displayed. 1 1 is the trouble indicator light, and below it is the district repeater error indicator 11.
A, a system abnormality display section 11b, and a main transmission line abnormality display section 11c are separately provided.

Further, 12 is a group of switches for various operations, and 12a is a test switch. Reference numeral 13 is a meter for internal circuit and battery check, and reference numeral 15 is an opening/closing lid of a storage chamber for a communication telephone.

When displaying an abnormality in step 6, if the abnormality is due to a fire outbreak, the error content display section 9 displays "Fire" and at the same time, the district number display section 10 displays the district number of the district where the fire occurred. If fire detection information is subsequently sent from another district repeater 4, the district number corresponding to this district repeater 4 is displayed on the district number display section 10. On the other hand, there is a district repeater 4
If the reception of normal operation confirmation information indicating normal operation by the receiver body 5 is interrupted, this indicates that the relevant district repeater 4 is malfunctioning. The district number of the district repeater 4 is displayed numerically, and the trouble indicator light 11 and the district repeater abnormality display section 11a are also displayed.
lights up to notify that the district repeater 4 whose number is displayed on the district number display section 1 has malfunctioned. In addition, if the normal operation confirmation information from several district repeaters 4 is interrupted, this should be judged as an abnormal state of the system as a whole, rather than an abnormality occurring in each district repeater 4. Therefore, in such a case, the trouble indicator light 11 and the system abnormality display section 11b are turned on to indicate that the system as a whole is in an abnormal state.
Further, when an abnormality such as a disconnection of the main transmission line 6 is detected, the trouble indicator light 11 and the transmission line abnormality display section 11c are turned on. The test light 14 indicates that the test is in progress, and an abnormal display caused by the test light 14 being lit indicates the test judgment result. According to the present invention, when a fire occurrence signal is received during a test such as a fire display operation test or a sensing wire continuity test using a boring signal from the receiver body, the fire alarm is given priority to the test. This has the effect of requiring fewer people to carry out various tests on the receiver side alone.Furthermore, even if an actual fire occurs during a test, the fire alarm can be given priority to the test, allowing the fire alarm system to function 24/7. This has the effect of allowing employees to work during the day. In particular, by using the boring signal from the receiver body, the fire indication operation or detection line continuity test is performed sequentially from the first district repeater to the last district repeater, and the test results of each district repeater are Registration is made for each test, and after the test is completed, the registered contents are determined sequentially from the first district repeater to the last district repeater, so the test for each district sensing line can be completed first, and the test results for each district can be checked later. Since the test can be performed, it is possible to enter the fire detection state after the test and then test the results of each registered test in that state.Furthermore, since fire detection is given priority even during the test, it is available 24/7. The fire alarm system can function, and since the test results are registered, even if a fire is detected during the test, it is possible to verify the registered contents before that, and the system can be operated more efficiently. play.

[Brief explanation of the drawing]

Fig. 1 is a basic configuration block diagram of an embodiment of the present invention, Fig. 2 is a basic flowchart of the above receiver, Fig. 3 is a test flowchart of the above receiver, Fig. 4 is a front view of the above receiver, and Fig. 4 is a front view of the above receiver. Figure 5 is a basic configuration block diagram of a conventional P-type fire alarm system, and Figure 6 is a basic configuration block diagram of a conventional R-type fire alarm system, where 1 is a detector, 2 is a transmitter, and 3 is a district detection line. ,
4 is a district repeater, 5 is a receiver body, and 6 is a main transmission line. Figure 1 Figure 2 Figure 3 Figure 4 Figure 5 Figure 6

Claims (1)

[Claims] 1 Group the sensors or transmitters by district, connect each group to the district sensing line, and introduce each district sensing line to the corresponding district repeater, and connect the receiver body and each district repeater to 1
A fire alarm system is installed that is connected by the main transmission line of the system, and the receiver body constantly and sequentially calls the district repeaters to which addresses are assigned separately, and each called district repeater transmits the district detection line of that district. The signal status is sent back to the receiver body, and the receiver body receives this return signal and determines whether the returned signal is normal or abnormal, such as determining the occurrence of a fire, and in the event of an abnormality, the area where the abnormality occurs and the abnormality state are detected. In a fire alarm system receiver that is designed to display fire alarms, a polling signal from the receiver body sequentially tests the fire display operation or sensing line continuity of the district repeater with the first district number to the last district repeater. At the same time, the test results of each district repeater are registered for each test, and after the test is completed, the registered contents are sequentially determined from the first district repeater to the last district repeater, and the boring from the receiver body is performed. A receiver for a fire alarm system, characterized in that when a signal indicating the occurrence of a fire is received during a fire display operation test or a sensing line continuity test, the fire alarm is given priority over the test. .