JPS63201799A - Discharge warning system - Google Patents

Abstract

(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

DETAILED DESCRIPTION OF THE INVENTION [Object of the Invention] (Industrial Field of Application) The present invention relates to a discharge alarm system that makes an alarm sound by remote control when water is discharged from a dam, weir, etc.

(Prior Art) Conventionally, in this type of system, as shown in FIG. It has a configuration that is
The monitoring station 1 controls each of the warning stations 2-1 to 2-n to issue warnings about rising water in the river 3, etc. Here, the conventional alarm control method of the monitoring station 1 includes the following control method. That is, as a first example, when the monitoring station 1 performs blow control in response to the alarm 82-1 and then attempts to control another control item (for example, starting audio broadcasting, etc.), the monitoring station 1 cancels the blow control. Executes control of another control item. Second, after the monitoring station 1 performs blow control on the alarm station 2-1, the alarm station 2-1 is configured not to accept other controls sent from the monitoring station 1 while the alarm station is blowing. After the sound is locked, the other controls are turned on.

However, both of the above control methods have the following disadvantages. In the former method, water discharge from a dam, etc. is started, and the monitoring station 1 performs siren sound control etc. on the downstream warning station (for example, 2-1), and while the siren is sounding at the warning station, the monitoring station 1 If another control is selected due to some reason or operational error, the alarm station will interrupt the blowing operation.This is a fail-safe method, considering that one wrong discharge alarm can be life-threatening. In the latter method, when monitoring station 1 performs some kind of control on the alarm station that is sounding,
Since the warning station is locked as described above, it does not return an answerback signal to the control from the monitoring station 1 while the warning station is sounding. As a result, the monitoring station 1 cannot recognize the alarm station that is sounding the alarm that this station is sounding and cannot accept control, so if the answerback signal that is supposed to be sent back is not sent back, The problem was that it was treated as a reception failure (failure on the communication line).

(Problem to be Solved by the Invention) In a system in which the alarm station does not accept other controls from the monitoring station while the alarm station is sounding, when the monitoring station performs other controls on the alarm station while the alarm is sounding, This system had the drawback of making a erroneous judgment that this alarm station was causing a reception problem. In addition, the system in which the warning station accepts other controls from the monitoring station while the warning station is sounding has the disadvantage that discharge alarms, etc., may be interrupted due to operational errors at the monitoring station, resulting in serious accidents that may cause loss of life. . The present invention eliminates the above-mentioned drawbacks, and prevents the alarm station's blowing operation from being interrupted due to operational errors, etc., and also prevents the monitoring station from erroneously determining reception failure. The purpose is to provide a comprehensive reporting system.

[Structure of the Invention] <Means for Solving the Problems> The present invention provides a discharge alarm system in which a monitoring station controls a plurality of alarm stations and performs blowing control, etc., in which a monitoring station controls a plurality of alarm stations to generate an alarm sound, etc. at any alarm station. , a timer that corresponds to the alarm station on a one-to-one basis and outputs a blowing activation signal for a predetermined period of time at the same time as timing starts, and a corresponding timer that outputs a blowing control activation signal that causes the alarm station to perform blowing control to the alarm station. The alarm system is configured to include a timer starting means for starting time measurement, and a control means for prohibiting control other than the specific control for the alarm station while the alarm starting signal is being inputted from the timer.

(Function) In the discharge alarm system of the present invention, when the timer starting means outputs to the warning station a blowing control starting signal that causes the warning station to perform blowing control, it causes the corresponding timer to start timing.

The control means prohibits any other control other than the specific control for the alarm station while the alarm activation signal is inputted from the timer.

As a result, other control instructions will not be output to the alarm station during the blowing control, and the blowing control will not be interrupted, and erroneous determination of reception failure etc. will be prevented.

(Example) An example of the present invention will be described below with reference to the drawings. 1st
The figure is a block diagram showing an embodiment of the monitoring station of the discharge warning system of the present invention. 5-1 to 5-n are selection switches provided for each alarm station for performing a blowing operation;
-1 to 6-n are timers provided for each alarm station,
The timing is activated by the corresponding selection switches 5-1 to 5-n. 7 is a CPU that performs various controls such as blowing control and timer monitoring control to control the operation of the entire system; 8 is an operation console provided with the selection switches 5-1 to 5-n, etc.

Next, the operation of this embodiment will be explained. First, for example, if the operator of the monitoring station 1 wants to cause the alarm station 2-1 to perform a blowing operation, the operator of the monitoring station 1 presses the selection switch 5-1. As a result, the alarm operation start signal 100 for the alarm station 2-1 is output from the console to the CPU 7, and the status signal 200 is output to the CPU 7. -1 is output to the timer 6-1. When the timer 6-1 receives the status signal 200, the timer 6-1 enters a state in which it can start a timing operation for counting a preset time. Next, the above-mentioned blowing operation start signal 10
The CPU 7 to which 0 is input performs operations as shown in the flowchart of FIG. That is, in step 201, the CPU 7
When inputting the blowing operation start signal 100 during operation, in step 202 outputs the blowing control start signal 400 for the corresponding alarm station to the alarm station 2-1 at the same time as the alarm station 2-1. , - Maegu Instigation ■ Turtle Sushi Control History / J Nori -
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-uvuu outputs the G motion signal 400 to cause the alarm station 2-1 to perform a blowing operation, and also causes the timer 6-1 to start timing. The timer 6-1 outputs a blow control raw signal 300 to the CPU 7 at the same time as starting time measurement. The CPU 7 outputs the blowing control raw signal 30 in step 203.
If 0 is input, processing other than blow control for the alarm station 2-1 is prohibited, and in step 204 it is determined whether or not the blow control raw signal 300 is being input from the timer 6-1. If input is in progress, return to step 203;
If input is not in progress, other control processing for the alarm station 2-1 is performed in step 205. Note that, also in step 203, the CPU 7 accepts specific control such as forced control for the corresponding alarm station. In addition, the input operation for this specific control command is a special one, and it is easy to err on the input hole due to an operation error (71, te item otsu-kao, long time no see 6
-1 to 6-n are the blowing operation periods of the corresponding alarm stations, and the clocking times are strongly set so that the blowing control raw signal 300 is output to the CPU 7.6 According to this embodiment, During blowing control, other controls (l) for this alarm station are not accepted, so that the blowing control is not interrupted due to operational errors, etc.
It is possible to create a failsafe. Moreover, since other control signals are not output from the monitoring station 1 to the alarm station during the blowing control, erroneous judgments such as occurrence of reception failure due to not receiving the answerback signal are prevented, and system reliability is improved. can be done. Moreover, since specific control can be performed even during the alarm control for the alarm station, flexibility of the system can be ensured without impairing reliability.

Effects of the Invention As described above, according to the discharge warning system of the present invention,
It is possible to prevent the alarm station's blowing operation from being interrupted due to an operational error, etc., and it is also possible to prevent the monitoring station from erroneously determining reception failure, thereby improving reliability.

[Brief explanation of the drawing]

Fig. 1 is a block diagram showing an embodiment of the monitoring station of the discharge alarm system of the present invention, Fig. 2 is a flowchart showing the operation of the CPU shown in Fig. 1, and Fig. 3 is a conventional discharge alarm system. FIG. 2 is a block diagram showing an example of a monitoring station. 2-1... Alarm stations 5-1 to 5-n... Selection switches 6-1 to 6-n... Timer 7... CPU Agent Patent attorney Nori Chika Nori Yudo Sanno - Figure 2 Figure 3

Claims (1)

[Claims] In a discharge alarm system where a monitoring station controls multiple alarm stations and performs blowing control, etc., in which an alarm sound is generated at any alarm station, the monitoring station responds one-on-one to the alarm stations and sends a blowing activation signal at the same time as timing starts. a timer that outputs a blowing control activation signal for a predetermined period of time; a timer starting means that starts a corresponding timer when a blowing control activation signal that causes the alarm station to perform blowing control is output to the alarm station; 1. A discharge alarm system comprising: a control means for prohibiting any other control other than specific control on a corresponding alarm station while the alarm station is in operation.