JPH0562398B2 - - Google Patents

Description

[Detailed Description of the Invention] [Field of Application of the Invention] The present invention relates to a dam discharge warning method, and in particular, to reduce the burden on the operator and generate a warning flexibly in response to changes in the discharge amount. This paper relates to a dam discharge warning method that can be used.

[Background of the invention]

In the conventional dam discharge warning method, as stated in the Ministry of Construction Telecommunications Specifications No. 2, established by the Ministry of Construction, a monitoring station and an alarm station are connected by wireless or wired lines, and the monitoring station is used to monitor when a dam is discharged. The station operator calls the alarm station, controls the siren or speaker,
It generates an alarm. FIG. 7 is an explanatory diagram showing the general positional relationship between a monitoring station and an alarm station,
The monitoring station 60 is installed near the dam 61, and each warning station 62, 63, 64 is located along the basin of the river 65.
Each is installed.

However, in the conventional dam discharge warning method described above, the warning stations 62 to 6 that need to issue a warning
4 is selected each time by the operator, and the water level of the river 65 rises approximately 30 minutes in accordance with the speed of water flow.
Since it is necessary to issue an alarm several minutes in advance, it is necessary to manually measure the passage of time, which poses a problem in that it places a heavy burden on the operator. Moreover,
Opportunities for generating such a warning are limited to only a few times throughout the year when there is a lot of rain, and there is a problem that operational errors are likely to occur due to the operator's unfamiliarity with the operation. If warnings are not issued when dams release water, the disadvantage is considered to be extremely large, as there is a high risk of water accidents. Despite this, the method of manually controlling multiple alarm stations one by one by the operator was adopted.
This is because it has been thought that it is more reliable for the operator to confirm each control of each station. However, as current dam equipment speeds up, the number of devices operators have to handle has increased dramatically, and since dam discharge warning devices are rarely handled, operational errors due to inexperience are common. , the situation has become such that it is likely to occur.

[Purpose of the invention]

The present invention was developed in view of the above-mentioned problems of the conventional technology, and automatically controls the alarm of any alarm station according to the amount of discharge from a dam, thereby preventing operational errors caused by operator inexperience. Another object of the present invention is to provide a dam discharge warning method that eliminates warning omissions by manually issuing a warning when the warning is not issued due to a control error.

[Summary of the invention]

The dam discharge alarm method of the present invention sets at least the alarm station to generate an alarm among a plurality of alarm stations and the time at which the alarm station generates the alarm according to the amount of discharge from the dam, and monitors it. This is applied to a dam discharge warning method in which a warning station remotely controls the sirens, speakers, etc. at multiple warning stations to issue a warning regarding dam discharge.
It has the following characteristics.

That is, among the alarm stations that generate alarms, according to the priority order of alarm stations determined based on the alarm generation time set as the above control content,
A signal indicating the control details set for the alarm station is transmitted to the alarm station with the highest priority (first step). Next, the alarm station with the highest priority receives the signal indicating the control content, and issues an audio warning according to the control content,
Further, the generated audio alarm is collected and a signal indicating the alarm generation status including at least the audio alarm is transmitted to the monitoring station (second step). Next, the monitoring station receives a signal indicating the alarm occurrence situation,
Determine whether the alarm has been generated normally (third
step). If it is determined in the third step that the alarm has not been generated normally, the monitoring station performs processing such as displaying an abnormality and switches the operation to manual (fourth step). If it is determined in the third step that the alarm has been normally generated, the monitoring station determines whether the alarm station with the highest priority is the final alarm station (fifth step). If it is determined in the fifth step that the alarm station is not the final alarm station, whether or not the alarm generation time set for the alarm station with the next priority after the alarm station with the highest priority in the first step has elapsed. If it is determined that the time has elapsed, the alarm station with the next priority is set as the new alarm station with the highest priority, and steps 1 to 5 are repeated (sixth step). . If it is determined in the fifth step that it is the final alarm station, the process ends (seventh step).

In addition, when the dam discharge amount increases, control contents corresponding to the increased water discharge amount are set separately from the control contents for the original water discharge amount, and the above-mentioned control contents that are executed for the original water discharge amount are set. In parallel with the first to seventh steps, the first to seventh steps are executed with respect to the control contents for the increased amount of water discharged.

In particular, the alarm generation timing of the alarm station that is remotely controlled based on the control details for the increased water discharge amount is longer than the alarm generation timing of the alarm station that is remotely controlled based on the control details for the original water discharge amount. Determine whether or not the condition has gotten worse (eighth step), and if it is determined that the condition has gotten worse quickly,
The remote control of alarm generation by the alarm station that is being executed regarding the original control content for the amount of water discharged is stopped (ninth step).

[Embodiments of the invention]

Hereinafter, the present invention will be explained in more detail with reference to embodiments shown in the accompanying drawings.

FIG. 1 is a block diagram showing one embodiment of a monitoring station that executes the dam discharge warning method of the present invention;
FIG. 2 is a block diagram showing an embodiment of a warning station for carrying out the dam discharge warning method of the present invention. The monitoring station shown in FIG. 1 is provided with two control systems, an A-system automatic control input section 100 and a B-system automatic control input section 200. 200 includes section setting switches 17 and 23, time setting switches 18 and 24, device selection switches 19 and 25, and start switch 2, respectively.
0,26 are provided. Section setting switch 1
Reference numerals 7 and 23 are for selecting a station to be subjected to alarm control during automatic control, and the station with the lowest number set here is started as the control starting station. Note that alarm stations that have not been set midway are considered to be dormant stations, and although the alarm time is counted, calling control is not performed. Time setting switch 18, 24
Since the timing of calling the alarm station during automatic control differs depending on the amount of discharge, the operator determines and sets the timing of the alarm station corresponding to the amount of discharge. The device selection switches 19 and 25 are
Select the device item to control the alarm, whether it is a siren or a speaker. The start switches 20 and 26 are switches for starting the A-system automatic control and the B-system automatic control. Further, DI (digital input) circuits 12 and 15 input the setting states of the switches 17 to 20 and the switches 23 to 26 into the processor 1.

When the settings of the switches 17 to 20 and 23 to 26 have been loaded, the control signal is sent to the DO (digital output) circuit 3, tone signal generator 5, transmitter 7, and antenna switching according to the instructions from the processor 1. The signal is output via circuit 9 and antenna 11 to the alarm station shown in FIG.

The alarm station shown in FIG.
The data is taken into the processor 31 via the circuit 48.
Based on the received control signal, the processor 31 outputs a command to generate an alarm, and sounds a siren 36 via the DO circuit 33 and the siren control panel 35, or connects the DO circuit 33, the pseudo sound generator 37, and the audio amplifier. A simulated siren sound is broadcast by a speaker 39 via a speaker 38. In this way, the generated alarm is collected by the sound collecting microphone 49, and is transmitted from the antenna 40 as a return signal to the monitoring station shown in FIG. 1 via the amplifier 50, the hybrid transformer 45, and the antenna switching circuit 41. Ru. This return signal includes information indicating whether the siren 36 is wailing or a pseudo-sound alarm is being generated from the speaker 39 according to a command from the processor 31, and this information is sent to the DO circuit 44. is transmitted from the antenna 40 via the tone signal generator 43, transmitter 42, and antenna switching circuit 41.

FIG. 3 is a time chart showing an example of the relationship between the control signals and return signals transmitted and received between the monitoring station and the alarm station described above, and is a time chart showing the control signals between the three alarm stations 62 to 64 and the monitoring station 60. This shows the sending and receiving of return signals.

The return signal transmitted from the alarm station is received by the antenna 11 shown in FIG.
The signal is input to the processor 1, and is output from the monitor speaker 27 via the amplifier 16. As a result, processor 1
The operating status of the control equipment (siren 36 and speaker 39) sent as a return signal to the displays 21 and 22 via the signals 3 and 14 is displayed. The indicators 21 and 22 are composed of lamps L as shown. The monitor speaker 27 then generates a monitor sound of the alarm actually being generated at the alarm station. Therefore, the operator of the monitoring station can correctly check the status of the alarm station.

The timing for transmitting the above control signal is determined by the processor 1 according to the program stored in the memory 2 shown in FIG. 1, and the timing for transmitting the return signal is determined as shown in FIG. The processor 31 performs the processing according to the program stored in the memory 32.

4a and 4b are time charts showing the operation of the monitoring station shown in FIG. 1. FIG. As shown in FIG. 4a, in step S1, it is determined whether or not the A-system automatic control is being executed. If YES, the process advances to step S9; if NO, the A-system automatic control input section 100 It is determined whether information on section selection, time selection, equipment selection, and start-up processing has been input. If this determination is NO, Figure 4b
If the answer is YES, the number n of the alarm station located most upstream among the alarm stations selected in the section is stored in the buffer of the processor 1. Next, in step S4, a control signal is sent to the alarm station numbered n. Next, in step S5, it is determined whether the return signal from the alarm station with number n is normal or not.
In the case of NO, after displaying an abnormality and generating a buzzer sound in step S12, the process proceeds to step S11.
Stop A system automatic control. Then, the alarm is switched to manual alarm generation by the operator. Step S5
If the determination is YES, the process advances to step S6 and normal display is performed. Next, in step S7, it is determined whether or not the alarm station with number n is the final station (the most downstream station among the alarm stations selected in the section).
Proceed to , and stop the A system automatic control. If NO, n+1 is stored in the buffer in the processor 1 as a new n. Next, in step S9, it is determined whether the time specified in the time selection until reaching the alarm station number n has elapsed, and if NO,
Proceed to the flowchart shown in Figure 4b. In the case of YES, in step S10, it is determined whether the A-system automatic control has been overtaken by the B-system automatic control,
If NO, the above steps S4 to S9 are repeated. If YES, the A-system automatic control is stopped in step S11. Here, the case where A-system automatic control is overtaken by B-system automatic control is as follows.
The following are various conditions. In other words, if the amount of water released by a dam increases after a certain period of time, A
It is assumed that system automatic control is performed and system B automatic control is performed based on increased discharge. At this time, the flow velocity of the river is faster based on the increased discharge than the flow velocity based on the initial discharge. Therefore, as time passes, the flow based on the increased discharge catches up with the flow based on the initial discharge, and as a result, it becomes unnecessary to generate a warning station based on the initial discharge. The step is to detect this condition and stop the A system automatic control.
This is the process in S10.

FIG. 5 shows that, in relation to step S10 described above, increased discharge is performed at time _t0 , and at time _t1 , the flow based on the increased discharge catches up with the flow based on the initial discharge, and
This shows a state in which the A-system automatic control has been reset at time _t2 .

After the A system automatic control stops in step S11,
Moving on to the slow chart shown in FIG. 4b. That is, in step S13, it is determined whether or not B-system automatic control is being executed. If YES, the process proceeds to step S22; if NO, the process proceeds to step S14.
Proceed to. The processing from step S14 to step S24 is almost the same as the processing from step S2 to step S12 shown in FIG. 4a, and the B-system automatic control is executed in the same manner as the A-system automatic control. Figure 4a
The difference between the A-system automatic control shown in FIG. 4 and the B-system automatic control shown in FIG. 4B is that it is determined in step S15 whether or not the A-system automatic control is being executed. Based on this determination, unless the A-system automatic control is being executed, the B-system automatic control cannot be started, giving priority to the A-system automatic control. If the determination in step S14 is NO, or if the process of step S22 is completed, or if the process of step S24 is completed, the process of the flowchart shown in FIG. 4a is executed again.

In addition, in this embodiment, a dam discharge warning method that can simultaneously perform two systems of automatic control, A-system automatic control and B-system automatic control, has been described, but the present invention is not limited to this. Control of only one series or control of three series can also be executed. In this case, the system A automatic control input section 1 shown in FIG.
00 and B system automatic control input section 200 and display section 2
1, 22 may be reduced or added. FIGS. 6a and 6b are explanatory diagrams showing only the A-system automatic control, that is, one system of control. Figure 6a shows the nth station, the nth
Figure 6b shows the alarm timing at the +1st station and the n+2nd station, and if an error occurs during control of the n+1st station, reset the A system automatic control from the n+2nd station and generate an alarm. Indicates the state in which the

Further, in this embodiment, the control signal and the return signal are transmitted and received by wireless communication, but the present invention is not limited to this, and can also be applied to wired communication by using a line switching circuit instead of a wireless device. be able to.

According to the above embodiment, the following effects can be obtained.

(b) By automating the discharge alarm control and presetting an alarm pattern (timing) that matches the station and discharge amount before the start of discharge, the burden on the operator can be reduced, and operational unfamiliarity and manual control can be reduced. This has the effect of preventing water accidents by preventing operational errors caused by short alarm time intervals.

(b) By providing multiple series of automatic control inputs, alarm control can be performed even for increased discharge after discharge has started, and even if the increased discharge overtakes the previous discharge, the previous alarm will not respond. By canceling the corresponding alarm timing, there is an effect that alarm control can be performed in accordance with the flow of water.

(c) In addition, even if an error occurs during automatic control, the automatic control function can be used even from midway by resetting the alarm station that starts control, taking into consideration the speed at which water is moving. It has the effect of recovering

〔Effect of the invention〕

As is clear from the above description, according to the present invention, it is possible to automate the alarm control of the alarm station, and also to check whether the alarm is generated normally at the alarm station, and if the alarm is not generated normally, to manually control the alarm control. It is possible to generate an alarm. Therefore,
Alarm omissions can be effectively prevented.

Furthermore, after manually issuing a warning, it is possible to return the control to automatic mode again, thereby reducing the amount of operation required by the operator.

[Brief explanation of drawings]

FIG. 1 is a block diagram showing an embodiment of a monitoring station used in the dam discharge warning method of the present invention, FIG. 2 is a block diagram showing an embodiment of a warning station used in the dam discharge warning method of the present invention, Figure 3 is a time chart showing the relationship between control signals and return signals sent and received between the monitoring station and the alarm station, Figures 4a and b are flowcharts showing the operation of the monitoring station shown in Figure 1, and Figure 5. The figure shows the relationship between the flow based on the initial discharge and the flow based on the increased discharge in the case of initial discharge and increased discharge, Figure 6 a is an explanatory diagram showing an example of alarm generation timing, and Figure 6 b is automatic FIG. 7 is an explanatory diagram showing the timing of restarting the control, and FIG. 7 is an explanatory diagram showing the positional relationship between the monitoring station and the alarm station. 1, 31...processor, 2, 32...memory,
3, 13, 14, 33, 34...DO circuit, 4, 1
2, 15, 34, 48... DI circuit, 5, 43... Tone signal generator, 6, 47... Tone signal detector,
7, 42... Transmitter, 8, 46... Receiver, 9, 41
...Antenna switching circuit, 10,45...Hybrid transformer, 11,40...Antenna, 16...Amplifier, 17,23...Section setting switch, 18,24
...Time setting switch, 19,25...Equipment selection switch, 20,26...Start switch, 20,21...
Display device, 27...Monitor speaker, 35...Siren control panel, 36...Siren, 37...pseudo sound generator,
38...Audio amplifier, 39...Speaker, 49...Sound collection microphone, 50...Amplifier, 100...A system automatic control input section, 200...B system automatic control input section.

Claims (1)

[Scope of Claims] 1. Setting at least an alarm station to generate an alarm among a plurality of alarm stations and a time at which the alarm station generates an alarm according to the amount of dam discharge as control contents,
In a dam discharge warning method in which a monitoring station remotely controls the sirens and speaker audible alarms at multiple alarm stations to generate a warning for dam discharge, the alarm set as the above control content among the warning stations that generate the warning. A first step of determining the priority of alarm stations based on the time of occurrence and transmitting a signal indicating the control details set for the alarm station to the alarm station with the highest priority; The high alarm station receives the signal indicating the control content, generates an audio alarm according to the control content, and further collects the generated audio alarm to indicate at least the alarm occurrence situation including the audio alarm. a second step in which the signal is transmitted to a monitoring station; a third step in which the monitoring station receives the signal indicating the alarm occurrence status and determines whether the alarm has been generated normally; If it is determined that the alarm has not been generated normally in the fourth step, the monitoring station performs processing such as displaying an abnormality and switches the operation to manual; and in the third step, it is determined that the alarm has not been generated normally. In the case where the monitoring station determines whether or not the alarm station with the highest priority is the final alarm station, and if it is determined in the fifth step that it is not the final alarm station, , it is determined whether the alarm generation time set for the alarm station with the next priority after the alarm station with the highest priority in the first step has elapsed, and if it is determined that the alarm generation time has elapsed, the next The sixth step is to repeat steps 1 to 5 with the priority alarm station as the new highest priority alarm station, and if it is determined to be the final alarm station in the fifth step. A dam discharge warning method comprising: a seventh step of terminating the process. 2 When the amount of water released from the dam increases, separate from the control content for the original amount of water released, control content corresponding to the increased amount of water released is set, and the above control content that is executed for the original amount of water released is further set. Claim 1, characterized in that, in parallel with the first to seventh steps, the first to seventh steps are executed regarding the content of control for the increased amount of water discharged. Dam discharge warning method. 3. The alarm generation timing of the alarm station that is remotely controlled based on the control details for the increased water discharge amount is higher than the alarm generation timing of the alarm station that is remotely controlled based on the control details for the original water discharge amount. an eighth step to determine whether or not the water discharge rate has become early; and if it is determined in the eighth step that the water discharge rate has become early, remote control of the alarm generation of the alarm station that is being executed regarding the original control content for the water discharge amount is performed; 3. The dam discharge warning method according to claim 2, further comprising a ninth step of stopping the dam discharge warning method.