JPH02100800A - Method for confirming working of discharge alarm device - Google Patents

Abstract

PURPOSE:To realize the individual confirmation of the working of plural discharge devices by sampling and receiving the working confirmation signals sent back from these discharge devices with the priority set to those confirmation signals. CONSTITUTION:A reception control part 2 decides whether the signal received from a discharge alarm controller is equal to a batch control command or not. When a batch control command is confirmed, a transmission priority control part 5 is started so as to avoid the superposition between the signals sent back from a return signal part 4 and a MODEM part 1 and the signals sent back from other stations. Thus it is possible to surely confirm the working of a discharge alarm device 10 against the batch control command of a discharge alarm system and then to decide the position of the device 10 having no working so as to cope with the state and the topography of a river where the device 10 is installed.

Description

[Detailed Description of the Invention] [Summary] Regarding the operation confirmation method of the discharge alarm device in the simultaneous control command of the discharge alarm system, the purpose of this invention is to prioritize the discharge alarm devices and determine the order in which return signals are sent. In a plurality of discharge alarm devices that receive simultaneous control commands from a discharge alarm control device using a machine, a modulation and demodulation section that converts a frequency signal from a radio signal into a digital signal, and a reception control section that verifies the received signal from the modulation and demodulation section. , an alarm control unit that activates a siren device or a public address system, a return signal unit that transmits an operation confirmation signal for the activated siren device or public address system, and a transmission priority control unit that sets the order of the return signal relative to other stations. The reception control unit determines the all-station simultaneous control signal, activates the transmission priority control unit, and transmits the return signal from the return signal unit via the modulation and demodulation unit according to the transmission priority of the discharge alarm device,
Configure to send back to discharge alarm control device.

[Industrial application field]

The present invention relates to a method for confirming the operation of a discharge alarm device in response to a simultaneous control command for a discharge alarm system.

The discharge warning system is installed at dozens of locations along the coast downstream of the dam, based on a simultaneous control command from the discharge warning control device installed at the dam's dam management office, which aims to prevent disasters and utilize water resources for multiple purposes. This is a method of emitting a warning through a siren, public address system, display board, etc. of the discharge warning device.

Figure 5 shows the system configuration of the discharge warning system. In the figure, 30 indicates a discharge alarm control device, and 10° to IOn indicate a discharge alarm device. When water is discharged from the dam, the discharge alarm control device 30 of the master station sends discharge alarm devices 10 to n unmanned stations downstream by radio. -Ion will issue a simultaneous command, issue a warning on the siren of each discharge warning device, loudspeaker system, display board, etc., and advise anglers and residents along the coast of the dam to evacuate. Recently, rivers that discharge water have also extended into mountainous areas, and each
LL alarm devices are increasingly being installed in areas with complex terrain that are far from the master station, and it is now necessary for the master station to confirm whether the alarm devices of unmanned stations are reliably emitting alarms. It has become. In particular, in the case of emergency releases rather than regular releases, it is more urgent to confirm the operation of alarms through simultaneous commands.

[Conventional technology]

In conventional discharge warning systems, control commands are issued from a discharge warning control device to each discharge warning device installed on the downstream coast of a dam, and operation return signals from the discharge warning device's siren, loudspeaker, display board, etc. are received. I checked the operation of the installation location.

This method was able to adequately handle cases where the river was wide and the water flow was slow, as was the case in the past, but in recent years, when the river is narrow and the topography is intricately curved in the mountainous areas, it becomes a warning. There was a problem because it was necessary to urgently check the operation.

Furthermore, even if a simultaneous control command is implemented, return signals are sent from dozens of discharge alarm devices all at once, making it impossible to determine which discharge alarm devices are operating, so the operation return signals have been ignored. For this reason, the location of the discharge alarm system that was transmitting the return signal was unknown, and it was not possible to confirm where the discharge alarm system's siren, public address system, display board, etc. were not operating.

[Problem to be solved by the invention]

As described above, in the conventional discharge alarm system, the operation of dozens of discharge alarm devices δ was not individually confirmed in response to a simultaneous control command, and it was not possible to confirm which alarm devices were not operating.

The purpose of the tree method is to perform operation confirmation 1 individually by prioritizing and sampling operation confirmation signals sent back from dozens of discharge alarm devices.

[Means to solve the problem]

FIG. 1 shows a basic configuration diagram of the discharge alarm device of the present invention. In the figure, ■ is a modulation/demodulation unit that digitally converts the frequency signal from the radio, 2 is a reception control unit that verifies the received signal from the modulation/demodulation unit, 3 is an alarm control unit that activates a siren device or a public address system, and 4 is an activation unit. 5 is a transmission priority control unit that sets the order of returned signals relative to other stations; 6 is a radio;
numeral 8 indicates a siren device, numeral 8 indicates a public address system, numeral 9 indicates a sound collection microphone for collecting the siren sound, and numeral 10 indicates a discharge alarm device.

In this device, the reception control section 2 determines whether the signal from the discharge alarm control device is a simultaneous control command, and if it is a simultaneous control command, starts the transmission priority control section 5, and sends the return signal section 4 and the modulation/demodulation section 1. The return signal sent from the station is prevented from being overlapped with the return signal of other stations.

[Effect]

In the present invention, by receiving the simultaneous control signal from the discharge alarm control device, the timing of returning the operation of the siren, public address system, display board, etc. of the discharge alarm device can be calculated without any problem even if the timing of the return signal is different. By transmitting the return signals in the transmission order specified, the discharge alarm control device that receives the return signals can promptly check the operation of the discharge alarm device and identify the installation location of the discharge alarm device that is in an inoperable state. This is what I did.

A call signal from the discharge alarm control device is received by the radio 6,
The modulation/demodulation section 1 performs digital conversion, and the reception control section 2 tests the calling signal to determine whether the calling signal is an individual call or a simultaneous control command.

A diagram illustrating the principle of testing this calling signal is shown in FIG. figure(
a> shows the case where the call signal is an individual call, and FIG. 2(b) shows the case where the call signal is a simultaneous control command. In the figure, the call signal shows the state in which the received radio frequency is converted into digital (8,el) and received, the group signal is the group signal to which the discharge alarm device belongs, and the individual signal is the discharge alarm (home station calling signal of the U device). The item signal is a signal for identifying whether to sound a siren, sound a speaker, or display on a display board, and all of them are composed of digital signals.

In the case of individual paging signals, the signal shown in FIG. 3(a) is repeatedly received at regular intervals (for example, every second), so it is determined that this is a paging signal directed to the own station. Next, in the case of a simultaneous control command, as shown in Figure (b), the calling signals of other stations are sent out cyclically at fixed time intervals before and after the own station's calling signal, so this will affect all stations. It is determined that it is a simultaneous control command. The interval t can be set freely, for example, every 0.1 seconds.

If the reception control unit 2 determines that it is a simultaneous control command,
The transmission priority control section 5 is activated to suppress the transmission of the return signal sent from the return signal section 4 to the modulation/demodulation section 1 on a time basis. This can be freely set in advance using a timer or the like.

Note that the siren device 7 can be confirmed by sending a signal to the return signal section 4 using the sound collecting microphone 9, but the horn, speaker, etc. of the public address system 8 can be confirmed by sending a drive signal from the public address device 8 to the return signal section 4. Confirm by.

〔Example〕

FIG. 3 shows a circuit configuration diagram of an embodiment of the discharge alarm device of the present invention. In the figure, ■ is a modem unit, 2 is a reception control unit, and 3 is a modem unit.
is an alarm control unit, 4 is a return signal unit, 5 is a transmission priority control unit,
6 is a radio device, 7 is a siren device, 8 is a public address system, 9 is a sound collection microphone, and 10 is a discharge alarm device. The reception control section 2 consists of a control signal reception determination section 11, a reception signal verification section 12, a control '+111 item determination section 13, and a simultaneous control determination section 14, and the return signal section 4 includes a return data collection section 15 and a return signal configuration. It consists of part 16. Further, the siren device 7 includes a siren device panel 17 and a siren 18, the public address device 8 includes a plurality of audio amplifiers 19 and a plurality of horn speakers 20, and a power supply unit 21 is supplied with DC 24V and converted into a power source for the device. Ru.

The reception signal verification section 12 of the reception control section 2 determines whether the received signal is an individual control command or a simultaneous control command. judge. If it is determined that it is an individual control command, the control item determination unit 13 sounds the siren device 7 or sounds the public address system 8.
After determining whether to sound the siren motor, the alarm control unit 3 turns on the siren motor control power and causes the siren and speaker to sound intermittently using an on/off signal. At the same time, the return signal section 4 sends out a return signal confirming ringing to the radio device 6 via the modulation/demodulation section 1.

Next, if the received signal is determined to be a simultaneous control command, a judgment signal is sent from the simultaneous control determining section 14 to the transmission priority control section 5, and the return signal sent from the return signal section 4 is delayed for a certain period of time and sent out. This delay time differs for each round using a timer, and the timings are shifted and sent out in a prespecified order.

FIG. 4 shows an operation time chart of the embodiment.

Figure (a) shows the case of the individual control command, and Figure (b) shows the case of the -valve control command.

In Figure 4 (a), is the individual system? In the case of the III command, a return signal for confirmation is immediately sent back at the same time as the device receives the call signal and turns on the device power.

In FIG. 4(b), in the case of a -valve control command, there is a station (1) that receives a call signal and immediately returns a return signal as soon as the device power is turned on, and a station that returns a signal at the next timing (1).
2), and thereafter, the transmission of the return signal is shifted in sequence and sent back to the discharge alarm control device of the master station. The master station checks the returned signals shifted in this order, and if there is a missing part of the returned signal, it can be determined that the unmanned station in that order is abnormal and take countermeasures.

[Effects of the Invention] As explained above, according to the present invention, it is possible to reliably check the operation of the equipment of the discharge alarm system in response to the simultaneous control command of the discharge alarm system l, and it is possible to check the operation of the equipment of the discharge alarm system l, Since it is possible to determine the installation location of the discharge warning device, it is possible to correspond to the river conditions and topography where the device is installed, and it can also contribute to improving the high multiplier φn performance of such a discharge warning system.

In the figure, ■ is the modulation/demodulation section, and 2 is the receiving side? 711 parts, 3
is an alarm control unit, 4 is a return signal unit, 5 is a transmission priority control unit,
6 is a radio device, 7 is a siren device, 8 is a public address system, 9 is a sound collection microphone, 10 is a discharge alarm device, 11 is a control signal reception determination section, 12 is a received signal verification section, 13 is a control item determination section,
14 is a simultaneous control determination section, 15 is a return Y-data collection section, 16
1 is a return signal component, 17 is a siren device panel, 18 is a siren, 19 is an audio amplifier, 20 is a ho/speaker, 21
Reference numeral 30 indicates a power supply unit, and 30 indicates an in-device on the discharge alarm side.

[Brief explanation of the drawing]

FIG. 1 is a diagram showing the principle of the present invention, FIG. 2 is a diagram explaining the principle of ejection signal verification, and FIG. 3 is a circuit diagram of an embodiment of the present invention.
FIG. 4 shows the operation type J of the embodiment, and Char 1-1. FIG. 5 shows a system configuration diagram of the discharge alarm system. -'' in η Garlic'', -/--1 Antenna 9-principle configuration diagram of the present invention Figure 1 (a) In the case of individual calling signals O (b) In the case of simultaneous control command ratio signal Principle of tightening the calling signal Explanatory diagram Figure 2

Claims (1)

[Claims] In a plurality of discharge alarm devices that receive simultaneous control commands from a discharge alarm control device using a radio device, a modulation/demodulation section (1) converts the frequency signal from the radio device into digital, and verifies the received signal from the modulation/demodulation section. a reception control section (2); an alarm control section (3) for activating a siren device or a public address system;
The above-mentioned reception control unit ( In step 2), the all-station simultaneous control signal is determined and the transmission priority control section (5) is started, and the return signal is sent from the return signal section (4) to the modulation/demodulation section (1) according to the transmission priority of the discharge alarm device.
A method for checking the operation of a discharge alarm device, characterized in that the information is sent back to the discharge alarm control device via the method.