JP2641866B2 - Automatic watering control system - Google Patents

Description

Description: TECHNICAL FIELD The present invention relates to an automatic water removal control system used in a place having a relatively large area such as a golf course and a fruit garden.

(Prior Art) Conventionally, as an automatic water removal control system used in a place occupying a relatively large area such as a golf course and a fruit garden, as shown in FIG. 3, a large number of sprinklers a are provided at a predetermined place. A water distribution pipe b is installed underground or above the ground between the water supply source and the sprinklers a, and a diaphragm solenoid valve c is incorporated in the water distribution pipe b near each sprinkler a. A system is employed in which a control wire e is buried underground between a solenoid valve c and a control panel d installed in a control room or the like, and the diaphragm type solenoid valve c is opened and closed from the control panel d. It had been.

(Problems of the prior art) However, in the above prior art, since the control wire is buried underground, for example, when the water distribution pipe is installed alongside the control wire underground, maintenance of the water distribution pipe is performed. In the case of golf courses, the control wires are often damaged, and in the case of golf courses, the control wires usually reach several kilometers, so there are many failures such as voltage drops and poor insulation, and furthermore, lightning strikes on various devices in the electrical system Alternatively, when there is a lightning strike, the work to confirm the location of the damaged control line is difficult because the wiring is underground, and the time and labor required for inspection and repair are enormous. There was a problem of reaching things.

The present invention has been made in order to solve such a problem, and an object of the present invention is to make a valve attached to a water distribution pipe buried underground a hydraulically operated valve that does not include an electrical configuration, By installing a pilot solenoid valve for controlling the controller near the controller and connecting this controller and the main controller that controls the entire system wirelessly, a control wire that connects the controller and the pilot solenoid valve is required. An object of the present invention is to provide an automatic withdrawal control system that is designed to keep the length to a minimum.

(Means for Solving the Problems) In order to solve the above problems, an automatic water removal control system according to claim 1 of the present invention comprises: a water sprinkler installed at a predetermined place; and a connection to the water sprinkler. A water distribution pipe which is buried in the ground and installed on the ground near the sprinkler, a controller having a radio receiver and a power source such as a solar cell and a battery for operating the radio receiver, and a vicinity of the sprinkler One end is connected to the water distribution pipe buried in the ground, and the other end is connected to the water pressure operated valve buried in the ground, and the middle part is grounded. A hydraulic control branch pipe extending from the inside and passing through the vicinity of the controller, and a hydraulic control branch pipe located near the controller, whereby the controller and the short control wire are provided. A pilot solenoid valve connected by A predetermined data from the main control device is transferred from the radio transmitter to the radio receiver, and the controller controls the operation of the pilot solenoid valve according to the data. The operation of the hydraulic valve is controlled by the operation of the pilot solenoid valve.

The automatic withdrawal control system according to claim 2 of the present invention is the automatic withdrawal control system according to claim 1, wherein the pilot solenoid valve is a two-position operation type using an electric signal. This is a pilot solenoid valve.

(Operation) The operation of the automatic water removal control system according to claim 1 will be described.

As a valve for controlling the supply and stop of water from the water pipe to the sprinkler, using a hydraulically operated valve that does not include an electrical configuration,
Water pressure control The control is performed by the water pressure in the branch pipe. The water pressure is controlled by a water pressure control branch whose both ends are connected to a water distribution pipe buried in the ground and a hydraulic valve, and an intermediate portion is extended from the ground so as to pass through the vicinity of the controller. This is done with a pilot solenoid valve built into the pipe. Further, the pilot solenoid valve is provided in a hydraulic control branch located near the controller.
The pilot solenoid valve is controlled by a signal from the radio receiver, and the radio receiver receives a signal from the radio transmitter of the main controller, so that no wiring is required between the controller and the main controller. . In other words, the connection by wiring is only between the controller and the pilot solenoid valve, and the pilot solenoid valve is installed near the controller. Length.

Therefore, electrical maintenance is only required for the controller, the pilot solenoid valve installed in the vicinity thereof, and the short control wire connecting these components, so that maintenance work is easy. Also, since the control wires are short, there is almost no fear of lightning strikes. Furthermore, even if a control wire or the like is damaged by a lightning strike or the like to each device of the electric system, it is easy to check the damaged portion and repair the damaged portion.

(Example) Hereinafter, an example of the automatic water removal control system of the present invention will be described with reference to FIGS. 1 (a) and 1 (b).

1 (a) and 1 (b) showing the basic configuration of the automatic water removal control system of the present invention, a water supply source 16 such as a storage tank is shown.
The water distribution pipe 10 which is derived from [FIG. 1 (a) is omitted] and is buried underground is connected to the water spraying tool 9 via a hydraulic valve 7. One end of a hydraulic control branch 8 to which the pilot solenoid valve 6 is attached is connected to the hydraulic valve 7, and the other end of the hydraulic control branch 8 is connected to a water distribution pipe 10 upstream of the hydraulic valve 7. It is connected to.

Since the pilot solenoid valve 6 is installed on the ground in this embodiment, the water pressure control branch pipe 8 has a shape in which both ends are buried in the ground, and a central portion to which the pilot solenoid valve 6 is attached is exposed on the ground. It has become. Then, a control signal from the controller 1 is supplied to the pilot solenoid valve 6. However, the pilot solenoid valve 6 does not necessarily need to be installed on the ground, and may be installed, for example, in an underground space near the ground surface to which an openable / closable lid is attached.

Further, the sprinkler 9 is not only composed of a nozzle simply communicating with the water distribution pipe 10, but also a sprinkler or the like is suitably used. In the case of a golf course, for example,
Some tens to several hundreds are arranged per course.

Also, a controller 1 for controlling the opening and closing of the pilot solenoid valve 6
Is a radio receiver 2 provided at an arbitrary location near the watering device 9 and provided with an independent power source including a battery 4 and a solar cell 5 and an antenna 3 for receiving a signal from a main control device 12 described later. Are provided. Controller 1
Performs opening / closing control of the pilot solenoid valve 6 based on a signal received by the wireless receiver 2. The power source may be the battery 4 alone.
The power required for opening and closing the pilot solenoid valve 6 itself may use a power source provided separately, instead of using the power source. Further, the controller 1 controls one or a plurality of the watering tools 9.

The main control device 12 is provided in a control room or the like (not shown),
A computer 13 for controlling the operation of the entire system and a wireless transmitter 14 for transmitting data from the computer 13 to the controller 1 are provided.

The computer 13 stores an arithmetic unit (not shown) for controlling a program, an input / output device including a keyboard, a mouse, a touch panel, a display, a printer, a communication board, and the like, and an operation program of the entire system. It is composed of a main storage device and an external storage device (for example, a floppy disk, a fixed disk, a magneto-optical disk, a RAM, an SRAM, a CD-ROM, etc.) in which individual operation programs relating to opening / closing operation of the pilot solenoid valve 6 are stored. I have. The data stored in these storage devices is output through an input / output device when necessary. Furthermore, the software consists of an online program that controls the sequence of the entire system and an online program that creates and corrects new data, so that operating conditions can be modified as necessary. It is possible.

Further, the wireless repeater 11 for relaying between the wireless transmitter 14 and the wireless receiver 2 is installed only when necessary. For example, in the case of a golf course, the data from the main controller 12 is relayed to the controller 1 which is installed near the top of the mountain and shades the mountain. That is, when receiving the group code of the own station, the wireless repeater 11 outputs the same data to the controllers 1 in the group to perform the relay.

Thus, a constant water pressure is constantly applied to the water distribution pipe 10 connected to the water distribution source 16 such as a storage tank and the water pressure control branch pipe 8 having a smaller diameter than the water distribution pipe 10. The pilot solenoid valve 6 is normally open, and by applying a hydraulic pressure to the hydraulically operated valve 7, the hydraulically operated valve 7 is kept closed.

In this state, when a control signal for instructing closing of the pilot solenoid valve 6 is transmitted from the wireless transmitter 14 of the main controller 12, the transmitted signal is transmitted via the wireless relay 11 to the corresponding controller 1. Is received by the wireless receiver 2. The controller 1 controls the pilot solenoid valve 6 to close according to the received control signal, and closes the pilot solenoid valve 6. As a result, there is no water pressure in the hydraulic pressure control branch pipe 82 connecting the pilot solenoid valve 6 and the hydraulic pressure operated valve 7, so that the hydraulic pressure operated valve 7 is opened, and water in the water distribution pipe 10 passes through the hydraulic pressure operated valve 7 and is sprinkled. It reaches 9 and is drained.

On the other hand, when a control signal for instructing opening of the pilot solenoid valve 6 is transmitted from the wireless transmitter 14 of the main controller 12, the transmitted signal is transmitted via the wireless relay 11 to the corresponding controller 1.
Is received by the wireless receiver 2. The controller 1 controls the opening of the pilot solenoid valve 6 according to the received control signal, and opens the pilot solenoid valve 6. As a result, the water pressure operated valve 7 is closed, the water in the water distribution pipe 10 is stopped by the water pressure operated valve 7, and the water removal of the sprinkler 9 is also stopped.

In the above embodiment, the open / close relationship between the pilot solenoid valve 6 and the hydraulic valve 7 is described as follows. When the pilot solenoid valve 6 is open, the hydraulic valve 7 is closed, and when the pilot solenoid valve 6 is closed, Although the configuration in which the hydraulic valve 7 is opened has been described, the hydraulic valve 7 is also opened when the pilot solenoid valve 6 is opened, and the hydraulic valve 7 is also closed when the pilot solenoid valve 6 is closed. It is possible to configure.

FIG. 2 shows an overall configuration diagram in a case where the automatic water removal control system having the above-described basic configuration is applied to, for example, a golf course.

That is, in a golf course, the vast site is managed in a plurality of areas such as 9A and 9B, and one area is managed for each area.
The controller 1 is installed, and each controller 1 is set so as to control a plurality (three in this embodiment) of pilot solenoid valves 6, 6, 6.

In this case, each pilot solenoid valve 6, 6, 6 is installed near the controller 1, while each hydraulically operated valve 7, 7, 7 is installed near the group of sprinklers 9a, 9b, 9c which are collectively controlled. Therefore, the hydraulic control branch pipes 82 are extended in accordance with the respective distances. When shown by specific numerical values, the distance between the hydraulically operated valves 7, 7 provided in the adjacent sprinkler groups 9a, 9b is 40 m or more, and the length of the extended hydraulic control branch pipe 82 is:
For long ones it will be more than 100m.

That is, in the conventional system, the portion of the water pressure control branch pipe 82 is connected by the control wire.

(Effects of the Invention) Since the present invention is configured as described above, the following effects can be obtained.

(1) The connection by the wiring is only between the controller and the pilot solenoid valve. Since the pilot solenoid valve is installed near the controller, the control wire connecting the controller and the pilot solenoid valve is underground. In a more exposed state, the length can be reduced to a necessary minimum. For this reason, electrical maintenance is only required for the controller, the pilot solenoid valve, and a control wire having a minimum necessary length in a state where the controller and the pilot solenoid valve are connected to the ground and exposed from the ground, thereby facilitating maintenance work. Also, since the control wires are short, there is almost no fear of lightning strikes. Furthermore, even if the control wires, etc. are damaged by lightning strikes on each device in the electrical system, check the damaged locations,
Repair work becomes easy.

(2) Since there is no electrical wiring except for the control wire between the controller and the pilot solenoid valve, there is no accident such as damage to the wiring during the maintenance of the water distribution pipe. There is no trouble such as not operating due to insulation failure.

(3) Since there is no electrical wiring underground, the construction period required for installation of the equipment is shortened, and after construction, the number of signals after adjustment and confirmation of the amount of water withdrawal increases due to the weather and humidity at the water withdrawal site. However, even if there is a supplementary construction for that, the construction period is also short, and there is no need to dig up the soil, so that the grass is not generally damaged. In addition, since electric wiring is not laid on the ground, traffic of cars and people is not hindered.

(4) When a two-position operation type using an electric signal is used as the pilot solenoid valve, the function as the solenoid valve is exhibited only by instantaneous energization, so there is no need to give operating energy to the solenoid valve even during water removal. The power supply capacity can be reduced, and when used in the present invention requiring an independent power source, a remarkable effect is exhibited.

[Brief description of the drawings]

1 (a) and 1 (b) are basic configuration diagrams of the automatic water removal control system of the present invention, FIG. 2 is an overall configuration diagram when the automatic water removal control system of the present invention is applied to a golf course, and FIG. The figure is a schematic configuration diagram of a conventional automatic watering control system. DESCRIPTION OF SYMBOLS 1 ... Controller 2 ... Wireless receiver 3 ... Antenna 6 ... Pilot solenoid valve 7 ... Hydraulic valve 8 ... Hydraulic control branch 9 ... Sprinkler 10 ... Water pipe 11 ... Wireless repeater 12 Main controller 14 Wireless transmitter 16 Water distribution source

Claims (2)

(57) [Claims] 1. A sprinkler installed at a predetermined location, a water pipe connected to the sprinkler and buried underground, a radio receiver installed on the ground near the sprinkler and operating the radio receiver A controller having a power source such as a solar cell and a battery, a hydraulically actuated valve attached to a water distribution pipe near the sprinkler, and one end connected to the water distribution pipe buried underground, A hydraulic control branch pipe having the other end connected to the hydraulic valve buried in the ground, an intermediate part being exposed from the ground and extending so as to pass near the controller; and By being provided in the hydraulic control branch located in the vicinity, a pilot solenoid valve connected to the controller by a short control wire, and a main controller having a wireless transmitter, a predetermined control from the main controller is provided. Data is transmitted from the radio transmitter to the radio Transferred to a receiver, wherein the controller controls the operation of the pilot solenoid valve in accordance with the data, and controls the operation of the hydraulic valve by the operation of the pilot solenoid valve. system. 2. The automatic watering control system according to claim 1, wherein the pilot solenoid valve is of a two-position operation type using an electric signal.