JPS5968414A - Automatic operating device for sluice - Google Patents

Abstract

PURPOSE:To operate the sluice remotely without operation by an operator at the site by using a battery and a solar cell as power source for a driving motor and employing laser beams as a remote control signal. CONSTITUTION:A control section 14, which receives a laser-beam signal from a control station 20 separating by at least 200m or more and discriminates a supply closing command signal and a switching operation signal, the driving motor 9 for vertically moving a spindle 6 directly coupled with a sluice gate 3, the battery 12 for supplying the control section 14 and the motor 9 with power, and the solar cell 16 of capacity capable of compensating a decrease of capacity accompaning the self-discharge of the battery 12 are provided. Accordingly, when a laser-beam signal is used as the switching operating signal for the sluice, a remote control from a remote place of 200m or more, which cannot be realized by ultrasonic waves or a radio signal due to its directivity, is enabled. When the battery 12 and the solar cell 16 are used as the power supplies for the motor 9 for switching the sluice gate 3, a power supply at low cost can be obtained as compared with a power-line construction.

Description

DETAILED DESCRIPTION OF THE INVENTION [Technical field to which the invention pertains] The present invention relates to a device for automatically operating a sluice gate provided at the end of an irrigation canal or drainage channel near a river.

Sluice gates (also called water gates) are opened and closed in order to limit or increase the amount of water flowing in or out when river water levels rise or water levels rise on land. Because they are often operated when water levels rise, they only open and close an average of two to three times a year.

[Problems with conventional technology]

For this reason, sluice gates at locations where they have not been erected are generally operated using a handle, manual foot operation, or a portable petroleum engine; In addition to the common problem of requiring operators to rush to the site, manual operation requires a strong operator, while portable oil engine operation requires ease of operation in bad weather and minimal operation frequency. There is a need to develop an automatic operation method to overcome problems such as reliability of start-up operations, daily maintenance management, and transportation and storage of fuel.

The simplest solution to this problem is to install a power line and drive the sluice gate by a motor, but this is not cost effective due to the low operation frequency mentioned above and the fact that there is generally no power load nearby. The reality is that adoption is being discouraged from the perspective of effectiveness.

[Purpose of the invention]

SUMMARY OF THE INVENTION Therefore, an object of the present invention is to provide an automatic sluice gate operating device that can be operated remotely without the need for an operator to go to the site, is inexpensive to install power lines, is easy to handle, and has good energy efficiency. do.

[Key points of the invention]

According to the present invention, the sluice gate is electrically operated, a battery is used as a power source for the drive motor, and a solar cell with a capacity of TIE is sufficient to supplement the self-discharge current of the battery, and a laser beam is used as a remote control signal. This is accomplished by using an operating device that is primarily equipped to use.

The main points of the preferred embodiments of the present invention are as follows.

(1) In order to improve the operability of remote control, the sluice gate should be designed so that it can be seen from a distance that it is being opened or closed, or that the internal or external water level has reached a dangerous level. Equipped with a warning light.

(2) In order to reduce the cost of the device, the solar cell is mounted on the case of the electrically operated spindle without providing a special support for mounting the solar cell.

(3) In order to improve ease of handling, the drive motor and manual operating device are connected by an easily removable timing belt.

(4) In order to save energy, the power consumption of the control circuit of the laser beam receiver is always kept small enough to receive the power-on command signal, and only when the power-on command signal arrives is the power consumption of the control circuit of the laser beam receiver controlled. The circuit is configured to switch and supply the power necessary for operation command signal processing.

[Embodiments of the invention]

FIG. 1 shows an embodiment of the present invention. A sluice gate 2 formed on a dam 1 near the boundary between a waterway and a river is equipped with a sluice door 3. The outer water surface 4 and the inner water surface 5 can be cut off. A spindle (l) is fixed to the sluice gate 3, and this spindle 6 penetrates the base 7 of the sluice gate 2 and protrudes upward. The upper part of the spindle 6 is covered with a spindle case 11.

A battery 12 is provided as a power source for the drive electric motor 9, and the drive ttr and the motive force 9 are driven from the battery 12 via a power supply Hxa, a control unit 14, and a power supply line 15. The control unit 14 is provided with a manual valve button switch (not shown). In order to avoid capacity reduction due to self-discharge of the battery 12, the solar cell 16 is attached to a suitable support, and the generated power is supplied to the battery 12 via a power supply line 17 and a charger 18.

According to the present invention, the power generation capacity of the solar cell 16 is determined not based on the motor current but based on the self-discharge current of the battery. For example, DC 12■.

When using a 15A electric motor as a drive motor and determining the capacity of the solar cell based on the motor current, it is necessary to have a solar cell with a capacity of 240W, the product of the cell voltage of 16V and the cell current of 15A. However, when a lead battery with a capacity of 150 Ah (at a 10-hour discharge rate) is used as the battery for the above motor, the self-discharge rate is generally 0.8% of the capacity/day, so the self-discharge Ah is 1, 2Ah
If the average sunshine hours are 3 hours a day, the charging current to compensate for self-discharge will be 0.4 people, so the capacity of the solar cell will be 16V x 0.4A = 6.4W. Become.

Generally, when using a combination of solar cells and batteries,
The capacity of a solar cell is usually designed to compensate for the loss due to battery discharge, but the sluice gate that is the subject of the present invention is operated only two to three times a year. Therefore, it is sufficient to install a solar cell with a small capacity sufficient to compensate only for the decrease due to self-discharge.

Therefore, in the embodiment shown in FIG. 1, the solar cell 16 is attached to a special support, but since there is no need to use a large solar cell, the solar cell can be attached directly to the spindle case 11. It becomes possible to omit special supports.

The sluice gate 2 further includes a display group 19 and a laser signal receiver 2.
1B is provided. The laser No. 1d receiver 21B receives a power-on command signal, an open operation signal, or a close operation signal modulated in a known manner from a laser signal transmitter 21A installed in the imperial palace 20 at a distance of 200 meters or more. Sent as . The sluice gate receives this and demodulates it in a known manner. As the modulation/demodulation format, it is possible to use the transmission and modem methods employed in ordinary electrical control systems, such as a method of changing the modulation frequency or a method of changing the duty cycle depending on the type of signal.

FIG. 2 shows an example of the circuit configuration of the control section 14 on the sluice side. Second
In the figure, 23 is a laser signal receiver, 24 is a demodulation circuit, and 25 is a power-on command determination circuit. The power-on command discrimination circuit 25 is a normal filter with an amplifier, and identifies the power-on command signal and drives the power switching circuit 26. This power switching circuit 26 inputs the power of the battery 12 that is supplementally charged from the solar cell 16 via the charger 18, and normally sends a power-on command signal to the receiver 23, the demodulation circuit 24, and the power-on command determination circuit 25. It supplies enough power to detect the arrival of the power-on command signal, and when an output is generated from the power-on command signal discrimination circuit 25, it supplies the necessary power to all control circuits, and it consists of a switching regulator and a suitable changeover switch. That's fine.

The opening operation command signal or the closing operation command signal subsequently arriving from the control station is discriminated by a filter 27' or 28, respectively, and the corresponding motor forward rotation circuit 29 or motor reverse rotation circuit 30 or flicker lamp 31 during opening operation or closing operation is detected. The middle flicker lamp 32 is driven. Each flicker lamp 31.32 is identical, by trembling as the lamp has 7 power cycles and more! It may also be possible to make identification possible. These seven indicator lamps correspond to any one of the indicator light group 19 in FIG. 1, and the other indicator lights are used for purposes such as blinking when a water level gauge (not shown) detects a dangerous water level.

FIG. 3 shows an embodiment for easily switching between electric operation and manual operation, and the same reference numerals as in FIG. 1 indicate the same or similar parts.

In this embodiment, a timing belt 34 is passed between a gear 33 coaxially fixed to the manual handle 10 and a drive motor 9, and a presser plate 35 is screwed onto the belt with bolts 36. If the timing belt 34 is made of cloth-filled rubber, if for some reason you want to perform manual operation, remove the bolts 36 and retaining plate 35, pull out the timing belt 34, and then open the handle 37 with the manual manual operation.・Just insert it into the hole in the handle. This makes it possible to easily manually open and close the sluice gate without necessarily requiring extensive skill.

〔Effect of the invention〕

As described above, according to the present invention, by using a laser light signal as the opening/closing operation signal of the sluice gate, remote control from a remote location of 200 m or more is possible, which is impossible with ultrasonic waves or wireless signals due to directivity. In addition, by using a battery as the power source for the drive motor for opening and closing the sluice gate and a solar cell that can compensate for the loss due to the self-power of the battery, an inexpensive power source can be obtained. Furthermore, since it is possible to use a small-capacity solar cell, the spindle case, which is essential for sluice gate control, can be used as a support for mounting the solar cell, thereby reducing the cost of the device. This system can achieve many effects such as making it possible to operate the sluice gates, and in general, it has made it possible to economically perform remote control of the sluice gate opening/closing operations, which were conventionally done manually.

[Brief explanation of drawings]

Fig. 1 is a device configuration diagram of an embodiment of the present invention, Fig. 2 is a control block circuit diagram, and Fig. 3 is a diagram showing a modified example of the operation section (N
(13) is a front view, and (13) is a side view. , Dan...Gutter gate, 3...Gutter gate section, 6...Spindle, 9...Drive motor, 10...Manual knob, 1
1... Spindle case, 12... Battery, 16
...Solar cell, 18...Charger, 19...Display device, 20...Control station, 21A...Transmitter, 22...
receiver. 2 Figure 7'3 CB> Sae

Claims (1)

[Scope of Claims] 1) A control unit that receives a laser light signal from a side palace that is at least 200 meters away and identifies a power-on command signal and an opening/closing operation signal, and a control unit that moves a spindle directly connected to the sluice gate up and down. A drive motor for controlling the drive motor, a battery for supplying electric power to the control unit and the drive motor, and a solar cell having a capacity sufficient to compensate for a decrease in capacity due to self-discharge of the battery. Features automatic sluice gate operation device. 2. An automatic operating device for a sluice gate, characterized in that the solar cell is mounted in a case of a spindle in the device according to claim 1. 3) Claim 1 An automatic sluice gate operating device according to the above-mentioned device, characterized in that the amount of power supplied to the control unit is switched from small to small before and after a power-on command signal arrives.