JPH0295786A - Signal transmission device for feedwater supply system - Google Patents

Abstract

PURPOSE:To get rid of any requirement going to a jobsite when a trouble has happened in midnight or like by doing communication of a signal between a field transmitter and a remote receiver from both directions, and when a feedwater supply system in the site gets out of order, taking action in transmitting the signal from a distant place. CONSTITUTION:At time of something wrong in feedwater supply system, when a microcomputer MCON-1 of a controller has got out of control, by way of example, a trouble detection signal is transmitted to a remote receiver from a field transmitter, while a reset signal is transmitted to the transmitter from the receiver whereby a backup circuit 10 of the controller is operated. In brief, when a relay contact RX1 of this backup circuit 10 is closed and a pressure switch PS4 is closed by operation of less than a pump starting pressure, a relay Y1 is excited. Then, an electromagnetic contactor X1 is excited via a contact Y1a, while power is fed to a motor M1 via a contact X1a, thus a pump of the feedwater supply system is operated.

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a signal transfer device for water supply equipment in a network system for water supply equipment, and in particular uses a model such as a telephone line to transmit fault signals, operation command signals, monitoring signals, target signals, etc. The present invention relates to a signal transfer device for a water supply system that is suitable for properly controlling the water supply system and performing maintenance management such as preventing water outages by transmitting data between a receiver and a transmitter on site.

[Conventional technology]

Conventional water supply equipment includes multiple pumps and pressure sensors.

Pressure tank, inverter, various 1-unit equipment, control, [j
It consists of devices (including switches, timers, relays, microcomputers, electronic parts, etc.), and the reliability of the water supply system depends on the reliability of these parts. The main purpose of this water supply system is to supply water to the main points, so in order to avoid water outages, it is possible to avoid problems with the parts mentioned above.For example, if one pump breaks down, it can automatically switch to the other and continue operation. Measures are being taken to ensure this.

[Problems that inventions are meant to solve]

The above conventional technology does not take into consideration the signal transfer technology in the network system of the water supply equipment, and even if measures such as the above-mentioned water cut-off countermeasures are taken, with recent technological advances, the control equipment is equipped with a microcomputer. As circuits and electronic circuits have come to be used, malfunctions such as microcontrollers going out of control and not starting or locking up and not stopping can cause a failure signal to be issued, and when a failure alarm is issued, maintenance and management of water supply equipment is carried out. There was a problem in that the management company was notified and had to respond immediately, regardless of the nature of the failure, even in the middle of the night. The setting section for setting signals such as start, stop pressure, and target pressure for operating the water supply system is located in the control device at the pump room site, so when it is necessary to change settings due to insufficient water supply pressure, it can be done at the site. The issue could not be resolved unless the issue was resolved, which caused great inconvenience.

The purpose of the present invention is to perform data communication between the pump room to be maintained and managed (1) and one or more distant offices that are performing maintenance and management, and to respond to problems with the water supply equipment from the office. Proper treatment can be carried out by remote control to prevent water outages, and water supply equipment [1 (vote 11H)]
You can also change the settings of the Kozuro water supply device (15).

[Means to solve the problem]

The above purpose is to transmit data such as a pump device (water supply device) equipped with pumps, sensors, valves, valves, etc., a pump control device that operates this device, and the operation and failure of this control device. A water supply device network system comprising a transmitter that transmits a signal, and a receiver that receives a signal from the transmitter, and that is connected to the transmitter and receiver through a communication line,
The pump control device is equipped with an independent backup operation circuit that performs bank-up operation in response to a reset signal from the receiver in the event of a malfunction, and when the receiver receives a failure signal from the transmitter, it resets and sends a pump operation signal. The transmitter is equipped with a reset switch that transmits a signal, and a target 11α setting means that changes the operating target value from a distance. This is achieved by a signal operating device for a water supply device that enables two-way signal transfer of the transmitter/receiver by providing a control bus and a data bus signal line for sending the target value to the pump control device.

[Effect]

The signal operation device for the water supply system described above is such that the water supply system installed on site in the pump room moves according to predetermined set values and procedures, and backup is provided to compensate for any malfunction. Since the device uses a microcomputer circuit, a separate backup operation circuit is installed so that the pump can be operated by external commands in case the pump goes out of control due to noise, etc., and a transmitter installed on site controls this operation. When a device malfunctions, data on operation, failure, etc. is received and voice messages are sent to a receiver at the office that performs remote control, while control signals and target value setting data are transmitted from the receiver. A remote receiver receives the data and transfers it to the control device, and when it receives a failure signal from the transmitter, it sends a reset signal and operates the back-up operation circuit, so that the remote receiver receives the data and outputs the contents. There are no water outages to the equipment, and target value settings can be changed from the receiver side, so even if there is a call late at night, it can be carried over to the next day.

〔Example〕

Embodiments of the present invention will be described below with reference to FIGS. 1 to 4.

FIG. 1 is a main control circuit diagram of a control device for a water supply device showing an embodiment of a signal operation device for a water supply device according to the present invention.

In Figure 1, PW is the power supply for water supply Ha, MCB is the circuit breaker, INV is the inverter, X0III X1l
l~X4. are the contacts of each relay Xo, X1 to X4, M and I
lvl is the motor that starts each No. 1.2 pump 1, 2 (Fig. 2), THL, TH, is the sensor part of the thermal relay that protects each motor M, M2 from overload, THL,
, TH□h, TH□,, TH2 are their respective contacts, R,
S is a control power bus.

In addition, MC0N-1 is a microcomputer that forms a control device for controlling the operation of pumps 1 and 2 of the water supply system, El is a power supply terminal, CPU is an arithmetic processing unit, and M (ROM, RAM) is a memory. , T2 is a watching dog timer circuit, Ll is an abnormality detection circuit, N
8 is a relay (contact Xs, shown in Figure 3), E2 is a transmitter CT
Control bus and data bus pass lines BUSI and BUS that exchange signals with L engineering (Fig. 3)
Connection terminals P1O-A-P10-E are human output ports for exchanging signals with peripheral elements such as each sensor.

PS3 also has water supply! It is a 4-position pressure sensor (Figure 2)
, l10-1 inputs and outputs the signal of pressure sensor PS3)
This is an interface for reading from PIO-A.

13 is the set value 2, I(+, Ho, p□) of the pressure necessary to operate the pumps 1 and 2.

P2 r HT r NMIN + N1. For example dip switch D IPA, D to set lAx
[Target value setting means consisting of PI3 (details are provided in Section 4)
Figure and 5th).

These signals are read from PIO-B and PIO-C. l10-2 is input/output capo) PIO-D
This is an interface for issuing a speed command signal to the inverter INV, and ■10-3 is an interface for issuing a speed command signal to the inverter INV.
This is an interface for transmitting switching control signals for electromagnetic switches (relays) X to x4 from IO-E.

History 10 is a backup circuit that sends these data to a remote office that manages the data when there is a problem with the pump equipment on site, and as a result, operates the water supply equipment based on operation commands from a distance, and RX□ is Transmitter CTLI (Figure 3)
PS4 is the contact of the pressure sensor (pressure switch) PS4 (Fig. 2) of the water supply system, and Yl is the relay. Also, RXlb is the contact of relay RXI, Yl
a.

Ylb is a contact of relay Yl, SSI and SS2 are switches, and T is a stabilized power supply unit of microcomputer MC0N-1. 11 is a discharge pressure abnormality detection circuit that is provided to prevent the pump from running in waterless operation due to a decrease in the discharge pressure of the pump, and Psi and PS2 are pressure sensors provided at the discharge ports of the No. 1 and No. 2 pumps 1 and 2. (Pressure switch) Psi, PS2 contacts (Figure 2), TL is the timer, T11 is its contact, X
, is a relay. 12 is an overload detection circuit (failure detection circuit) for motor M2M2;
□8 is the contact point of summer relay THi, TH2, X, ,X,
is a relay (contacts Xsa to X7m are shown in Fig. 3).

FIG. 2 is a configuration block diagram of the water supply device (pump device Fr1) shown in FIG. 1. In Figure 2, 1 is the No. 1 pump, 2
is the No. 2 pump, 4 and 5 are the check valves, 67 is the gate valve, 8 is the water supply pipe, 9 is the pressure tank, PSl, PS2 is the pressure sensor (pressure switch) for detecting the above-mentioned no water supply, and PS3 is the pressure sensor Pressure detection means (pressure sensor) that converts into a continuous electrical signal, usually using a pressure quadrupole transducer. P
S4 shuts off the pump when there is a problem with the microcomputer or electronic circuit.
Pressure detection means (Vf:) for N-OFF operation.

(force sensor) and usually uses a pressure switch.

FIG. 3 is a block diagram of the configuration of the field-installed transmitter of FIG. 1. In Figure 3, CTL 1 is a transmitter for transmitting signals such as pump room operation and failures from the site to the office that is in charge of the operation, and usually multiple units are installed in each pump room. be done. MC0N-2 is transmitter CTL l
110-4 is a microcomputer for controlling the entire system, and l10-4 is for operating the water supply system control device (Fig. 1) installed in the pump room.
This is a human output interface for manually outputting signals such as failures, for example contact X for the microcomputer abnormality signal mentioned above. , Pump (motor) overload signal contact XG, , X7&, No water supply signal contact X51 are connected, and backup relay RX1 is connected. Also, E is the lotus line r3tJs1. This is the terminal for connecting BtJS2. In this embodiment, T L 1 is a telephone receiver since this example shows an example of communication using a telephone line, and M2 is a voice generating circuit unit ( MDI is a modem-C for data communication (8). 13 is a switch contact for switching between a telephone conversation and a voice origination side using the modem MDI. For example, when the handset TLI is picked up, the contact is l] side to the a side, and is normally on the b side.

11L is a terminal for connecting to a telephone line cable SIG.

FIG. 4 is a block diagram of the configuration of the remotely installed receiver of FIG. 1. In Figure 4, CTL2 is the field transmitter CTL
This is a receiver installed in a remote office to receive and receive data from 1. MC0N-3 is a microcomputer that controls the entire receiver CTL2. l10-5 is an interface, and sets values α, H,, Ho, such as pressure, etc.
P,, P2. H.T.

NMIN + NIIAX deep switch DIPc
, a target value setting means 130 (equivalent to the target setting means 13 in FIG. 1) consisting of a DIPo, is set from a distance, and the control device of the water supply device is set via a transmitter CTL2 (in this case, a receiver) installed on site. (in this case the receiver CT L).

2 is the transmitter). Also, this interface l10-
5 has a function to output data and messages transferred from the transmitter CTLI (for example, "The water supply system is abnormal.") to a printer O[J'r, etc., and the contents of the messages and data are The pump operating status and failure alarm MS, setting data MS such as pressure data, etc.
It can be divided into

Zarani interface I/O-5 has a backup glue set f Sochi R5 that is used to reset and restart the on-site control device in the event that the water supply device malfunctions due to runaway of the microcomputer MC0N-1. and target 11α setting-1 stage 1 on the side of the distant receiver CTL.
; Switch RS S to send a signal to change settings when changing settings such as pressure using 3.
Connect 2. MD2 also has transmitter CT L1 and receiver I.
This is a modem for communicating with the S device CTL, 2, and since a telephone line is used in this embodiment, it is equipped with a receiver TL2 and a terminal I5 for connection to the telephone line SIG.

FIGS. 5(a), (b), and (C) are diagrams showing the operating characteristics of the pump in the water supply system shown in FIG. 1 (FIG. 2). The water supply system uses an inverter INV to change the rotational speed of pumps 1 and 2 as the load changes (changes in the amount of water demanded), and supplies water while maintaining a constant pressure on the pump discharge side. Some systems supply water by turning the pumps 1 and 2 on and off using the amount of water held in the pressure tank (or an elevated water tank) 9 as the load fluctuates, and some systems do both. There is. FIG. 5(a) is an operational characteristic diagram for the case of 11 bongs to which constant pump discharge pressure control is applied, and the vertical axis represents the discharge pressure H and the horizontal axis represents the water amount Q. Here, curves A, B, C, and D represent the maximum rotational speed NM of the pump.
A X + rotation speed N, N2, minimum rotation FINM + N
The graph shows the Q-H (ice amount-pressure) characteristic of the pump when For example, assume that the water used is ff1Q□, the pump rotational speed is N□, and the pump is operating at an operating point O□. In this state, the load water f
When changing from f1Q → Q2 → Q, → O, the pump rotation speed changes from NMAX → N4 → N2 → NMIN, and the operating point O□
→02→03→04, and the discharge pressure is kept constant at Ho. In this case, the above-mentioned target value setting means 13
The target values set with the 0 dip switch DI PC+ DI Po are the discharge pressure H0 and the minimum rotation speed NMIN+
The maximum rotation speed is NMAX.

Further, FIG. 5(b) is an operational characteristic diagram to which pump predictive terminal pressure constant control is applied, and the same symbols as in FIG. 5(a) have the same meanings. Here, the curve E is the piping resistance curve, and the straight line E' is the operating point O and the operating point 04 on the same curve.
, and α indicates the slope of the same line. Furthermore, H7 indicates the total head of the pump when the water quantity Q is flowing, and Hl indicates the sum of the actual head and the required pressure at the end. With this characteristic, for example, if the water consumption is Q, the pump rotation speed is N,
It is assumed that the vehicle is being operated at the operating point ○. In this state, when the load water amount changes as Q4 → Q2 → Q, → 0, the pump rotation speed changes as NMAX-+N, → N2 → NM□, and the operating point is 0.
The pump discharge pressure H changes as follows: 1 → 02 → 03 → Q4
A constant Q-H (ice amount - pressure) where is on the piping resistance curve E
Water is supplied for this reason. In this case, the dip switches DI Pc, D of the target value setting means 130 described above
The target value set in I Po is [1,.

HT, α+ NMINI NMAX. Further, FIG. 5(c) is an operational characteristic diagram to which pump ON-FF operation control is applied, where Pl is the pump starting pressure and P2 is the pump stopping positive pressure. Here, the pump is not operated at variable speed, but is started at a pump starting pressure P0 for a water amount Q1 and stopped at a pump stop positive pressure P2 for a water amount Q2 as the load water IQ changes. In this case, the target value set by the dip switches DIP, , DIPD of the target value setting means 130 is the pressure P□+
It is pz.

Next, the operation of the entire system of the signal operation device of the water supply device having the above configuration will be explained. First, usually a water supply device (pump device)
Water is supplied to the demand side by pumps 1 and 2. If the water supply equipment is operating normally and in good operating condition,
Periodically, for example, once a day, data indicating the operating status is sent from the control device of the water supply device to the pass line Bush, B.
It is sent to the transmitter CTL 1 via US2, and from there is sent to a distant receiver CTL2 via the telephone line SIG, and its contents are output to a printer OUT or the like. While this water supply device is in operation, the microcomputer MC0N-
1 goes out of control, leading to an uncontrolled state and conventionally causing water outages.

However, according to the present invention, when the microcomputer MC0N-1 goes out of control, the watchdog timer T2 operates and resets the arithmetic processing unit CPU to restore the normal state from the 1all-like deafness. If this does not return to normal even after repeating this three times, the abnormality detection circuit L1 operates, and this output energizes the relay
Microcomputer error signal contact Xl connected to 10-4
11 closes. Then, the microcomputer MC0N-2 uses this if
Since the f point
After converting it to a serial signal, it is connected to the telephone line cable SIG from terminal 14 for remote reception 1F7cT.
Transfer to L2. The receiver CTL2 returns this one serial word received at the terminal 15 to the original coded data by the modem MD2, and outputs it to the printer OUT via the interface I/O-5 by the microcomputer MC0N-3. At the same time, the audio generation circuit section M2 of the transmitter CTL 1
For example, the message data such as "The water supply system is abnormal." is transmitted to the receiver CT far from the modem MDI.
Transfer to L2 modem MD2 in the same manner as above. If you take the receiver TLI on the receiver side at this time, the transferred data's water supply declaration is abnormal. °' is reported.

On the side of this distant receiver CTL2, the above printer O
After confirming the contents of the MSl that indicates a failure alarm output to the UT or the voice message that has been reported, the receiver CTL
When the reset switch R8 provided at 2 is closed, this reset signal is transferred to the on-site transmitter CTL1 by a signal flow in the opposite direction to the above, and the backup relay RXI attached to the transmitter CTL1 is energized. . This causes the backup circuit 10 of the water supply device control device to operate. That is, the relay contact RX1 of this backup circuit 10 is closed, and the pressure switch contact PS4 is closed.
is closed by the operation of the pressure switch PS4 of the water supply device below, for example, the pump starting pressure PI (Fig. 5 (C)),
When the relay Y is energized, the electromagnetic contactor XI is energized via the contact Yla, so power is supplied to the motor M1 via the contact Xla, and the pump 1 is operated.

In this pump 1, the pressure switch PS4 is set to the pump stop positive pressure P.
It turns off when it reaches 2 (Fig. 5 (C)) or more, so
The operation of starting the pump at the pump starting pressure P1 and stopping at the stopping pressure P2 is repeated. In this way, water outages can be prevented and emergency treatment can be carried out automatically from a remote office without having to go to the site.

Roughly■1 field transmitter CTL I side receiver TLI,
The operator calls the remote receiver CTL2,
When a call is made to change settings such as pressure, the operator on the receiver CTL2 side receives this and changes the settings via interface l10-
5 closes the switch R552 to send a signal to change the settings, and then the dip switch DIPC of the target value setting means 130.

Change settings such as pressure using DIPD. This data is sent to the transmitter CTL2 in the same way as above, and the transmitter CT
The data is transferred from L2 to the microcomputer MC0N-1 of the control device of the water supply device via the pass line BUS and BUS2, and stored in the memory M (RAM) there. Therefore, the operation of the pumps 1 and 2 is controlled by the changed setting data, and in this way, when the water supply pressure is insufficient, the setting of the target pressure can be changed from a distance, which is very convenient. Note that the target value setting means 13, 130 may be provided in the distant receiver CTL2, or may be provided at the pump room site, or may be provided in either one or both.

FIG. 6 is a water supply system diagram showing a large difference in height, showing another embodiment of the signal operating device for the water supply N position according to the present invention. In Fig. 6, a piping system diagram is shown for example, in the case of water supply with large height differences between golf courses and fields, 16 is a pump room, 17 is a water supply device, 18 to 22 are each water supply blocks A-E, 23
is an office, ■, ~v5 is an automatic water valve. In such applications, the difference in height between each block 18 to 22 is large;
Since cyclic water supply is carried out by determining a certain schedule, if the water supply target pressure is uniformly determined based on the point farthest from the water supply device 17, the pressure will become too high in areas close to the water supply device 17, which may cause damage to the pipes. A problem had arisen.

Therefore, according to the present invention, a control device for the water supply device 17 (Fig. 1) and a transmitter CT'LI (Fig. 3) are installed in the pump room 16, and a receiver CTL2 (Fig. 3) is installed in the distant office 2; 4
) are installed, and they are connected by communication line SIG.
Assuming that the appropriate water supply target pressures HO=a, b, c, d, and e when water is supplied individually in 20.21.22 are stored in the memory of the microcomputer.

Figure 7 shows the microcomputer NC of the receiver CT L2 in Figure 3.
It is a data table diagram of the water supply target pressure HO of 0N-3<FIG. 4). As illustrated in Figure 7, the remote office 2
The target value setting means 13 of the receiver c'r I-2 of No. 3 sets the water supply target of each A-E block 18-22 at addresses 8000-800/4 of the memory RAM (not shown) of the microcomputer MC0N-3. Store the data of pressure H8=a=e. The A-E blocks 18 to 22 to be supplied with water for each time period are determined in advance, and these water supply procedures are stored in the microcomputer MC0N-3.

In this way, for example, if it is programmed to supply water to the A block 18 at AMIO:00, a command signal is sent to open the automatic hydrant valve VIW of the A block 18 and close the automatic valves ■2 to ■5 of the other blocks 19 to 22. Along with outputting
By reading the data of the water supply target pressure 110-a from the memory RAM, the receiver C of the office 23
A signal is transferred from T L, 2 to the control 1alI device of the water supply device 17 via the transmitter CTLI of the pump room 16 via the communication line SIG, and is stored in the memory M (RAM) of the microcomputer MC0N-1. Note that these data do not need to be transferred during operation, but may be transferred in advance and stored in the water supply device 17 in the same way as they are stored in the memory of the receiver CTL2-11.

In this way, the motor M1゜M2 of pump 1 or 2 is driven via the inverter INV by the speed command signal of the microcomputer MC0N-1, and the water supply pressure H is adjusted to the water supply target pressure H.
The pump rotation speed N is variably controlled so as to keep it constant at 8=a. Next, for example, it becomes AMll:00 and B block 1
9 is programmed to supply water, this time B
By outputting a command signal to open only the water faucet automatic valve V2 of block 19 and reading the data of the water supply target pressure H, = b from the memory RAM, the pump is activated from the receiver CTL2 of the office 23 in the same way as above. The signal is transferred to the control device of the water supply device 17 via the transmitter CTL 1 of the room 16, and stored in the memory M of the microcomputer MC0N-1. In this way, the pump 1 or 2 driven by the inverter INV has a water supply pressure equal to the water supply target pressure (. = 1)
The pump rotation speed is variably controlled to maintain a constant water supply. The CE blocks 20 to 22 of the corresponding song are also the same as those in L, so their explanation will be omitted. In this way, the appropriate water supply target pressure for each block can be achieved.

Since the pump is operated by changing the rotational speed so that

〔Effect of the invention〕

According to the present invention, signals are exchanged in both directions between a transmitter installed at the site and a receiver installed at a distance, and the water supply device at the site can transfer signals from a distance and process them in the event of a problem. Therefore, when a problem occurs late at night, there is no need to go to the site immediately, which is very convenient. In addition, it is possible to set target values for operating the water supply equipment from a distance.
It has the effect of being able to respond immediately when a request is made. The target field for rough operation can also be set as a water supply block, allowing for cyclic water supply according to a set schedule, which has the effect of allowing each water supply block to supply water at the optimum pressure.

[Brief explanation of the drawing]

Figure 1 shows the signal transmission of the water supply device according to the present invention! 4＠ Control of water supply equipment showing one example! The control circuit diagram of the device, Fig. 2 is a (K block diagram) of the water supply device of Fig. 1, Fig. 3 is a configuration block diagram of the transmitter of Fig. 1, and Fig. 4 is a block diagram of the remote receiver of Fig. 1. Configuration block diagram of FIG. 5(a),(b),
(c) is an operating characteristic diagram of the water supply device shown in FIG. 1, FIG. 6 is a water supply system diagram showing another embodiment of the signal transfer device of the water supply device according to the present invention, and FIG. 7 is data of the microcomputer shown in FIG. It is a table diagram. 1.2...Pump, 4,5...Check valve, 6,7...
...Partition piece, 8...Water pipe, 9...Pressure tank, 1
o...Backup circuit y3.11...Discharge pressure abnormality detection circuit, 12...Overload (failure) detection circuit, 13.
13...Target 1lff setting f stage, 16...Pump room, 17...Water supply device, 18-22...Water supply block, 23...Office, INV...Inverter, M,
, M2-・Mo9, MC0N-1...Microcomputer, X
o-Xs...Relay, Yl...Relay F3US,,
BIJs2-zrl line, Psi to PS4...Pressure sensor, CTLl...Transmitter, l10-4...Interface, M COI'J-2...Microcomputer,
MDI...Modem, TL! ...Handset, M2...
Audio generation storage unit, RX,...Relay, SIG...Telephone line, CTL2...Receiver, I/O-5...Interface, MC0N-3...Microcomputer, MD2...
...Modem, TL2...Telephone receiver, R9...Reset switch, R552...$2 Recessed t2: Voice/F4, J, non-return key PS/~PS4: Pressure cover diagram

Claims (1)

[Claims] 1. A pump device including one or more pumps, sensors, valves, etc., a pump control device for controlling the operation thereof, and transmitting data on the operation, failure, etc. of this pump control device In a water supply device network system comprising one or more transmitters that transmit signals, a receiver that receives signals from the one or more transmitters, and a communication line that connects the transmitter and receiver, the pump control device is provided with an independent backup control circuit that performs backup operation using a reset signal from the receiver in the event of a malfunction, and the receiver is provided with a reset switch that is operated after confirming that the alarm signal from the transmitter has been received. The transmitter is provided with a relay that is energized when the reset switch is closed, so that when the reset switch is closed, the relay operates the backup control circuit to perform backup operation of the pump device. A signal transfer device for a water supply device characterized by: 2. The pump control device and the transmitter are connected by a control bus and a data bus so that data communication can be performed, and the receiver side has a target value setting for setting a target value for controlling the pump device. 2. The signal transfer device for a water supply device according to claim 1, wherein the signal transfer device for a water supply device is configured so that setting of the target value can be changed from a distance by providing means. 3. If the water supply device mentioned above has a large height difference such as a golf course or between fields, program the water supply time and water supply target pressure for each water supply block in advance on the transmitter or receiver side. 3. The signal transfer device for a water supply device according to claim 2, wherein the signal transfer device is configured to supply water according to this procedure.