JP4649323B2 - Hovercraft for spraying agricultural chemicals - Google Patents

Description

  The present invention relates to a hovercraft for spraying agricultural chemicals suitable for spraying agricultural chemicals on paddy fields by remote control.

Even in areas where farmland has been integrally formed in the past, in recent years, there has been an increase in the number of residential land, and so-called urban mixed farmland where farmland and residential land are mixedly mixed is increasing. Even in the urban mixed farmland as described above, paddy fields are formed and rice cultivation is performed as usual. On the other hand, in paddy rice cultivation, pesticide spraying is generally performed from the viewpoint of weed control. Here, it is known that the above-mentioned weed control is effective at an early stage after transplanting seedlings to paddy fields, and the herbicide used at this time is called paddy field initial herbicide. It is.
By the way, spraying methods for pesticides such as the above herbicides include spraying with the same principle as spraying, mist spraying with fine airflow using high-speed air current, and large and powerful fan. There is a large blower sprayer for rice fields (spar spouter / sprayer). More specifically, the most efficient spraying method is aviation spraying, which includes manned helicopters and remote unmanned helicopters. These methods have the advantage of promoting the efficiency of pesticide spraying. On the other hand, there was a restriction that a certain amount of community was needed. Furthermore, the above-mentioned aerial spraying was effective in March 2003, as it was difficult to use in areas where there were fields such as mixed crops and special cultivation fields, urban mixed farmlands, and organic farming. The revised Agricultural Chemicals Control Law and the Ministry of Agriculture, Forestry and Fisheries / Ministry of Environment have newly mandated proper use at the user level. On the other hand, the sprayer has a human type and a power type, and the power type includes a portable type that can be carried on the back, a tractor towing type, a tractor mounted type, a self-propelled type, and a stationary type. Moreover, most of the mist machines have a backpack type and are combined with a power duster and a duster.
Among the spraying methods for pesticides, air spraying is considered to be the most effective method compared to sprayers, mist machines, and large blower sprayers for paddy fields because of spraying costs and the problem of aging farmers. However, due to the revised Agricultural Chemicals Control Law and the obligation of proper use at the user stage, the implementation of aerial spraying has become stricter and social problems such as causing health damage in neighboring areas have come to occur. On the other hand, according to the revised Agricultural Chemicals Control Law, even for registered pesticides, depending on the type of product, the production of agricultural products is judged to be out of the standard due to the scattering of agricultural chemicals. Problems have also arisen.
In view of the above background, instead of spraying in the air, there has been a demand for a new spraying method capable of carrying out efficient agricultural chemical spraying without scattering of chemicals.

In response to such circumstances, Japanese Patent Application Laid-Open No. 9-233985, “Hovercraft for paddy field and pesticide spraying method thereof” has been proposed. Here, when the outline of the invention is shown, the invention relates to a hovercraft for paddy fields that travels on the surface of water and sprays chemicals as a means of mechanization of spraying work such as agricultural chemicals and fertilizers. One gist is a hovercraft for paddy fields that is equipped with a tank for agrochemicals such as granule, granule wettable powder, and liquid agent and a spraying device for spraying the pesticide on the hovercraft body so that traveling and spraying can be remotely controlled. Met. Further, the paddy hovercraft can be provided with a light source at the main contour portion of the main body of the paddy hovercraft. Further, the paddy hovercraft may be capable of traveling control by the balance of the air flow for levitation. Further subsequently, the paddy hovercraft is the paddy hovercraft described above, characterized in that the pesticide may be mounted, run on the paddy field by remote control, and spray the pesticide during that time. It was also a thing.
JP-A-9-233985

According to the invention according to Japanese Patent Application Laid-Open No. 9-233985 described in the above Background Art section, it is recognized that there is a great effect that it is possible to spray a pesticide on a target field without scattering a predetermined amount of the pesticide unlike air spray. Here, according to the paddy hovercraft according to the invention, the hovercraft main body is remotely operated to secure a traveling trajectory, while the paddy hovercraft operator can access the paddy hovercraft from a remote location. Remote control was based on the color of the lamp provided. Specifically, there is a description in the example column of the specification according to the present invention that “for example, the front lamp is arranged in red, the rear right lamp is arranged in blue, and the rear left lamp is arranged in yellow”. When pesticide spraying is applied to a predetermined field by actual remote control, it is difficult to get a sense of perspective for the left and right lamps at the rear of the paddy hovercraft far away from the operator, and paddy hovercraft to increase spraying efficiency. If the speed of the vehicle was increased too much, there was a problem such as getting on the road even though the front red lamp was lit. That is, regarding the operation of the above-described paddy field hovercraft, it was necessary to learn the key points for the operation due to many operational errors and the like, and it was understood that the operator required skill.
Accordingly, the present inventor has reached the present invention by repeating many experiments and researches for improving the operability of the paddy field hovercraft, and the object of the present invention is that the paddy field hovercraft is far away from the operator. It is intended to provide a pesticide spraying hovercraft with extremely good operability, which can be accurately operated even if it is in the above position.

  Thus, the hovercraft for spraying agricultural chemicals according to the present invention has the following configuration in order to achieve the above object.

  Here, in order to achieve the above object, the present inventors analyzed in detail about the main body structure and operability of the hovercraft for paddy fields disclosed in JP-A-9-233985, and solved the following means. Adopted.

That is, in order to achieve the above-mentioned object, the hovercraft for spraying agricultural chemicals according to the present invention is equipped with a tank for agricultural chemicals for filling the hovercraft main body with liquid agricultural chemicals and a spraying device for spraying the agricultural chemicals, and remotely operated. In the radio-controlled hovercraft capable of operating the spraying device and the hovercraft main body, the hovercraft main body controls the opening and closing of the spraying nozzle by the medicine tank, the spraying nozzle which communicates with the medicine tank and sprays the medicine on the field, and the received signal of the controller. A spraying device comprising a nozzle opening / closing valve, a rotary motor that has a fan fixed to the rotating shaft and blows air to propel and float the hovercraft body, and a pressure chamber provided at the lower rear of the fan in the drug tank. An air blast pipe port that communicates with the drug inlet is located so that the fan blows air. A pressurizing device for applying pressure to the chemical tank, a solar panel as an auxiliary power source, a rechargeable battery for operating a transmission / reception and control device on the other hovercraft body side for driving the rotary motor, and a fan duct covering the fan A CCD camera and an ultrasonic sensor device provided on the upper side of the fan duct, a danger indicator illuminator lamp which is provided at the rear of the fan duct and lights up in response to the operation of the ultrasonic sensor device, and an air outlet of the fan duct. A safety net and a bank are attached to the hovercraft body, and it is attached in the shape of a letter “C” to improve the turning performance. The ladder that turns the hovercraft body left and right according to the received signal from the controller, and the controller sends and receives radio signals. Hull side antenna and finger skirt attached to the lower part of the hull And gist to be al configuration.

  The hovercraft for spraying agricultural chemicals according to the present invention has an effect that it is possible to perform agricultural chemical spraying without avoiding the unevenness even in paddy fields with unevenness that have not been uniformly plucked.

  In addition, the hovercraft for spraying agricultural chemicals according to the present invention has the above-described configuration, and the spraying state from the starting point to the turning point and further from the turning point to the ending point by remote control is not dependent on visual confirmation from a distance of the operator, and the hovercraft body There is also an effect that the hovercraft main body can be operated while confirming an image of the front of the boat displayed by the provided CCD camera on the monitor of the controller.

  Further, the hovercraft for spraying agricultural chemicals according to the present invention has the above configuration, and when approaching more than a set distance to an obstacle such as a roadway or a bank, an ultrasonic sensor device provided in the hovercraft body senses it from a speaker on the controller. A warning sound is generated, and an accidental collision of the hovercraft main body can be avoided by the danger indication light-emitting body lamp provided in the hovercraft main body displaying a danger indication in response to the operation of the ultrasonic sensor device. There is also an effect.

  In order to achieve the purpose of providing an extremely good operability pesticide spraying hovercraft that can accurately control the paddy hovercraft even when the paddy hovercraft is far away from the operator, At the top of the constructed fan duct, a CCD camera for capturing the image of the ship's front on the monitor on the controller and the proximity of obstacles such as roads and banks are detected and a warning sound is output from the speaker on the controller. While the ultrasonic sensor device to be generated is provided, the hovercraft main body is provided with a danger indicating light-emitting body lamp that is turned on in response to the operation of the ultrasonic sensor device.

  Hereinafter, an embodiment of the present invention will be described. First, FIG. 1 is a schematic configuration side view showing an outline of an agrochemical spraying hovercraft according to the present invention, and FIG. 2 is a schematic configuration rear view showing an outline of the agricultural chemical spraying hovercraft according to the present invention. However, the controller 21 is omitted in FIG. As shown in the figure, the hovercraft 1 for pesticide application transmits a hovercraft body 2 and a radio signal for controlling the traveling direction and speed of the hovercraft body 2 as desired, and a CCD camera 13 provided in the hovercraft body 2. The ultrasonic sensor device 14 by detecting an approaching distance within 3 to 5 m (which can be set) with respect to an obstacle such as a roadway and a bank, and a monitor 22 that receives and displays a video signal in front of the boat projected by Is configured by a combination of controllers 21 that receive a warning signal transmitted from the speaker and generate a warning sound from the speaker 23.

  Next, as shown in the figure, the hovercraft body 2 includes a drug tank 3, a spray nozzle 7 that communicates with the drug tank 3 and sprays the drug on the field, and a nozzle opening and closing that controls the opening and closing of the spray nozzle 7 by the received signal of the controller 21. A spraying device 6 comprising a valve 8, a rotary motor 5 having a fan 12 fixed to a rotary shaft and blowing air for propelling and floating the hovercraft main body 2, and a pressurizing chamber 16 provided at the lower rear of the fan 12. The air blowing pipe 17 connected to the medicine inlet of the medicine tank 3 is disposed at the same time, and a pressurizing device 24 for applying pressure to the medicine tank 3 by blowing air from the fan 12 and the solar panel 10 as an auxiliary power source In addition to driving the rotary motor 5, the rechargeable battery 9 for operating the transmission / reception and control device on the hovercraft body 2 side and the fan 12 are covered. The CCD camera 13 and the ultrasonic sensor device 14 provided on the upper part of the fan duct 11, the danger indicator light emitter lamp 15 which is provided at the rear of the fan duct 11 and lights up in response to the operation of the ultrasonic sensor device 14, and the above A bank is attached to the safety net 19 and the hovercraft main body 2 provided at the air outlet of the fan duct 11 and is attached in a “C” shape in order to improve the turning performance. It comprises a rudder 18 for turning, a hull-side antenna 20 for transmitting and receiving radio signals to and from the controller 21, and a finger skirt 4 that is integrally attached to the lower part of the hull.

  Then, the usage aspect of the hovercraft 1 for agricultural chemical distribution comprised as mentioned above is demonstrated. First, when pesticide spraying is performed, a worker (operator) who sprays transports the controller 21 and the hovercraft body 2 to a desired field. Next, the designated agricultural chemical is put into the chemical tank 3 and the rechargeable battery 9 is checked. Subsequently, the hovercraft body 2 is placed at the starting point of the field, the main switch 27 of the controller 21 is turned on, the switch (not shown) of the hovercraft body 2 is turned on, and the rotary motor 5 is manually applied. The rotation motor 5 of the hovercraft body 2 rotates and the fan 12 starts to be blown. The hovercraft body 2 floats up from the scene, while the pressure chamber 16 is also blown to increase the pressure from the air blower pipe 17. Compressed air flows from the drug inlet through the air blowing tube 17 and pressurizes the liquid level in the drug tank 3. However, in this state, the spray nozzle 7 is in a closed state, so that no chemical spray is performed. Subsequently, when the operator slightly pushes the propulsion operation lever 25 that controls the propulsion of the controller 21 forward, the hovercraft body 2 slowly moves forward. Here, when the pesticide spraying switch 26 is turned ON, the spraying nozzle 7 is opened and the pesticide spraying is started. Further, the propulsion operation lever 25 automatically returns upward in the vertical direction when the operator does not apply force to the lever, and is in a propulsion stop state. On the other hand, when the ladder operation lever 28 is operated, an angle is given to the ladder 28, and when it is tilted to the right, it turns right and when it is tilted to the left, it turns left. Furthermore, the rotation speed of the rotary motor 5 increases and the propulsion speed increases as the tilt angle of the propulsion operation lever 25 is increased. At this time, the operator can work while visually recognizing the image in front of the boat which is projected by the CCD camera 13 provided on the hovercraft body 2 by the monitor 22 of the controller 21. Accordingly, it can be confirmed that the opposite shore as the turn-back point is approaching by the image projected by the CCD camera 13, so that the propulsion operation lever 25 is returned to the vertical direction and the ladder operation lever 28 is tilted to the left or right to move the hovercraft body 2. To turn. Here, in the unlikely event that the danger of collision is imminent due to approaching the opposite shore direction, the ultrasonic sensor device 14 provided in the hovercraft main body 2 operates to transmit a warning signal, and the controller 21 that has received the warning signal While the warning sound is generated from the speaker 23, the danger indicator illuminator light 15 provided in the hovercraft body 2 is turned on in response to the operation of the ultrasonic sensor device 14, and the driver is urged to avoid collision twice. By this, accidents can be avoided. Subsequently, with respect to the maneuvering from the turning point to the departure point, it is possible to work while viewing the image in front of the boat displayed by the CCD camera 13 provided in the hovercraft body 2 or when the maneuver is close to the pilot. It is also possible to operate the hovercraft body 2 while directly observing it without depending on the monitor 22. The operator is on the tunnel outside the field and performs the agrochemical spraying work while moving between sides of the field. When the work on the desired field is completed, the main switch of the controller 21 is turned off, the switch of the hovercraft body 2 is turned off to stop the rotation of the rotary motor 5, and the hovercraft body 2 is lifted from the field. Finish the work.

  Since the hovercraft for spraying agricultural chemicals according to the present invention has the above-described configuration, the sprayed agricultural chemicals need not be limited to liquid agents, and granules can also be used. Furthermore, the hovercraft for spraying agricultural chemicals according to the present invention can carry out snow-melting work by filling a chemical tank with a snow-absorbing agent instead of the chemical and spraying a required area by the operator. The range of use is wide.

It is the outline composition side view showing the outline of the hovercraft for agricultural chemical application concerning the present invention. It is the outline composition rear view showing the outline of the hovercraft for agricultural chemical application concerning the present invention.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Hovercraft for agricultural chemical spraying 2 Hovercraft body 3 Chemical tank 4 Finger skirt 5 Rotating motor 6 Spraying device 7 Spraying nozzle 8 Nozzle opening / closing valve 9 Rechargeable battery 10 Solar panel 11 Fan duct 12 Fan 13 CCD camera 14 Ultrasonic sensor device 15 Danger instruction Luminescent lamp 16 Pressurization chamber 17 Air blower pipe 18 Ladder 19 Safety net 20 Hull side antenna 21 Controller 22 Monitor 23 Speaker 24 Pressurization device 25 Propulsion operation lever 26 Pesticide spray switch 27 Main switch 28 Ladder operation lever

Claims (1)

In the radio-controlled hovercraft, which is equipped with a tank for agrochemicals for filling the hovercraft main body with liquid agricultural chemicals and a spraying apparatus for spraying the agricultural chemicals, and the remote control hovercraft main body can be operated by remote control, the hovercraft main body is A spray tank comprising a drug tank, a spray nozzle that communicates with the drug tank in the field, a nozzle opening / closing valve that controls the opening and closing of the spray nozzle by a reception signal of the controller, and a fan fixed to the rotating shaft, A rotation motor for blowing air for propulsion and levitation, and an air blower tube port communicating with the drug inlet of the drug tank in a pressurization chamber provided at the lower rear of the fan, A pressure device that applies pressure to the chemical tank by blowing air, and a solar panel that serves as an auxiliary power source A rechargeable battery for operating a transmission / reception and control device on the other hovercraft body side for driving the rotary motor, a CCD camera and an ultrasonic sensor device provided on an upper portion of the fan duct covering the fan, and a rear portion of the fan duct In order to improve the turning performance by attaching a bank to the danger indicator illuminator lamp that is lit by the operation of the ultrasonic sensor device, the safety net provided in the fan duct air blower, and the hovercraft body A ladder that swivels the hovercraft body to the left and right by the received signal of the controller, a hull-side antenna that transmits and receives radio signals to and from the controller, and a finger skirt that is integrally attached to the lower part of the hull Hovercraft for pesticide spraying, characterized in that it is composed.

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