JPH0398668A - Method for controlling sprinkling amount of chemical agent of chemical agent sprinkling vehicle - Google Patents

Abstract

PURPOSE:To reduce the labor of a worker by detecting the damage degree of crops due to a disease and a harmful insect and controlling the sprinkling amount of a chemical agent corresponding to the damage degree of crops. CONSTITUTION:In a chemical agent sprinkling vehicle allowed to be self-propelled on a field to sprinkle a chemical agent on crops in the field, the damage degree of the crops due to a disease and a harmful insect is detected by a smell sensor 42 and a hearing sensor 44. Further, the vehicle speed of a speed sprayer is judged from the detection signal of a car speed sensor 46. A microcomputer 48 calculates the sprinkling amount of the chemical agent per a unit area corresponding to the damage degree of the crops due to a disease and a harmful insect and also calculates the feed-out pressure of the chemical agent from a pump 28 for achieving the calculated sprinkling amount at the vehicle speed at that time. By this method, the sprinkling amount of the chemical agent can be controlled corresponding to the damage degree of the crops and the labor of a worker can be reduced.

Description

[Detailed Description of the Invention] [Field of Industrial Application] This invention relates to a method for controlling the amount of chemical sprayed by a chemical spraying vehicle such as a speed sprayer, and more specifically, a method for controlling the amount of chemical sprayed in a chemical spraying vehicle such as a speed sprayer. The present invention relates to a method for controlling the amount of chemical sprayed by a chemical spray vehicle that can be controlled.

[Conventional technology]

In conventional chemical spraying work using a speed sprayer, the operator looks at the crop conditions in the field, calculates the amount of chemical spray per unit area, and based on this calculates the speed sprayer's vehicle speed, nozzle diameter, and Determines pump pressure, etc.

The amount of chemicals sprayed while the speed sprayer is running is adjusted by the driver manually operating a pressure regulating valve to change the pressure at which the chemicals are pumped. [Problem to be solved by the invention] Even in the same field, the degree of damage to crops caused by diseases and pests differs depending on the location, and the appropriate amount of chemicals to be applied to crops varies depending on the location. .

However, in the spraying work using conventional speed sprayers, the operator of the speed sprayer has to manually operate the sprayer, which is extremely troublesome, and while the speed sprayer is running, it is necessary to manually operate the sprayer. Therefore, it is difficult to change the spray amount. A common object of the inventions of claims 1 to 3 is to provide a chemical spraying amount of a chemical spraying vehicle that can appropriately control the chemical spraying amount in response to the degree of damage to crops that changes from time to time while the chemical spraying vehicle is traveling. The object of the present invention is to provide a control method.

The purpose of the invention of claims 1 and 2 is to provide a method for controlling the amount of a chemical sprayed by a chemical-killing vehicle, which can appropriately control the amount of a chemical sprayed depending on the degree of damage to crops caused by diseases. .

It is an object of the invention as claimed in claims 1 and 3 to provide a method for controlling the amount of chemical sprayed by a chemical spraying vehicle, which can appropriately control the amount of chemical sprayed depending on the degree of damage to crops caused by pests.

The invention of claim 4 provides an embodiment advantageous for detecting the degree of damage to crops caused by diseases.

The invention of claim 5 provides an embodiment advantageous for detecting the degree of damage to crops caused by pests.

Rill! Means for Solving the Problem] The present invention will be described using reference numerals in the drawings corresponding to the embodiments.

In the method of controlling the amount of chemical sprayed by the chemical spraying vehicle (10) of the claimed work, the chemical spraying vehicle (10), which travels on its own in the field and sprays the chemical on the crops in the field, prevents damage to crops caused by diseases and pests. The amount of pesticide sprayed is controlled according to the degree of crop damage.

In the method for controlling the amount of a chemical sprayed by a chemical spraying vehicle (10) according to claim 2, the chemical spraying vehicle (10) that sprays a chemical on the crops in the field while self-propelled in the field can control the degree of damage to crops caused by diseases. The amount of pesticide sprayed is controlled according to the degree of crop damage. In the method for controlling the amount of a chemical sprayed by a chemical spraying vehicle (IO) according to claim 3, the chemical spraying vehicle (10) that sprays a chemical on crops in a field while traveling on its own in a field, prevents crop damage caused by pests. The chemical spraying vehicle according to claim 4 (the method for controlling the amount of chemical sprayed in item 10) detects the degree of damage to crops caused by diseases and controls the amount of chemical sprayed according to the degree of damage to crops. Detects based on the strength of the odor.

In the method for controlling the amount of chemical sprayed by a chemical spraying vehicle (10) according to a fifth aspect of the present invention, the degree of damage to crops caused by pests is detected from the strength of insect voices.

[Effect]

In the inventions of claims 1 and 2, the degree of damage to crops caused by diseases is detected. The amount of chemical sprayed is then increased or decreased in relation to the detected degree of crop damage.

In the inventions of claims 1 and 3, the degree of damage to crops caused by pests is detected. The amount of pesticide sprayed is then increased or decreased depending on the degree of damage caused by the detected pest. In the fourth aspect of the invention, the strength of odor is detected.

The odor becomes stronger as the degree of crop damage from the disease increases.

In the invention of claim 5, the strength of the insect's voice is detected. As the degree of crop damage caused by pests increases, the insects become louder.

〔Example〕

This invention will be described below with reference to embodiments of the drawings. FIG. 2 is a side view of the speed sprayer IO.

The speed sprayer 10 includes a frame 16 that is supported by a front inlet 12 and a rear inlet 14 so as to be self-propelled, and on the upper side of the frame 16, a driver's seat 18 and a chemical agent are installed in order from the front of the speed sprayer 10. A drug tank 20 for storing, a bonnet 22 surrounding an engine rule l1 that houses a driving engine, etc., a jet head 24 that mists the medicine, and a blower 26 that discharges air sucked in from the rear to the jet head 24.
will be published.

FIG. 1 is a block diagram of a drug flow system and a spray amount control system. The medicine in the medicine tank 20 is inhaled and discharged by the pump 28, sent to the water divider 34 via the pressure regulating valve 30 and the three-way cock 32, and from the water divider 34 to the left and right sides and upper part of the jet head 24. The liquid is distributed to the nozzle pipes 36 of , and is ejected from the nozzle 38 of each nozzle pipe 36 . The pressure regulating valve 30 regulates the discharge pressure of the pump 28, and excess medicine is returned from the pressure regulating valve 30 to the medicine tank 20. Three-way cock 32
is manually switched to selectively guide the medicine from the pressure regulating valve 30 to the water divider 34 and the medicine tank 20. The spray amount control section 40 includes an odor sensor 42 , an auditory sensor 44 , and a vehicle speed sensor 46 , and the detection values of the odor sensor 42 , auditory sensor 44 , and vehicle speed sensor 46 are sent to a microcomputer 48 .

As the degree of crop damage due to disease increases, the odor becomes stronger, and the odor sensor 42 detects that the speed sprayer 1
The strength of the odor in the area where the 0 is traveling is detected.

As the degree of damage to crops caused by pests increases, the voices of the pests become louder, and the auditory sensor 44 has a structure similar to a microphone and listens to the voices of insects in the area where the speed sprayer 10 is traveling. Detect the strength and weakness of Vehicle speed sensor 4
6 utilizes the principle of radar, and emits electromagnetic waves to the road surface on which the speed sprayer 10 is traveling, receives the reflected waves, and detects the vehicle speed of the speed sprayer 10 based on the reflected waves. switch 50, 5l
are opened and closed manually to control acceptance and blocking of input from the odor sensor 42 and auditory sensor 44 to the microcomputer 48, respectively. The actuator 52 operates the pressure regulating valve 30 in response to a control signal from the microcomputer 48 to change the pressure regulation value of the pressure regulating valve 30. The pressure sensor 54 detects the hydraulic pressure in the drug passage between the pressure regulating valve 30 and the three-way cock 32, and sends the detected value to the microcomputer 48.

The operation of the embodiment will be explained.

As the pump 28 operates, medicine is inhaled from the medicine tank 20 and discharged from the pump 28. When ejecting the medicine from the nozzle 38, the pressure regulating valve 30 side of the three-way cock 32 is connected to the water separator 34 side. As a result, the medicine pumped from the pump 28 is sent to the water separator 34,
It is ejected from the nozzle 38. Furthermore, when stopping the ejection of medicine from the nozzle 38, the pressure regulating valve 30 side of the three-way cock 32 is connected to the medicine tank 20 side. This results in
The medicine pumped from the pump 28 is transferred to the medicine tank 20.
be returned to.

In the following, it is assumed that the pressure regulating valve 30 side of the three-way cock 32 is connected to the water divider 34 side. When the chemical to be sprayed is for both crop disease and pest control, switch 50. 51 are both turned on. As a result, the detection signals of the smell sensor 42 and the auditory sensor 44 are both sent to the microcomputer 48 and processed as human data. The microcomputer 48 determines the degree of damage to crops caused by diseases from the detection signal of the olfactory sensor 42, and the degree of damage to crops caused by pests from the detection signal of the auditory sensor 44, and also determines the vehicle speed. The vehicle speed of the speed sprayer 10 is determined from the detection signal of the sensor 46. In this way, the amount of chemical sprayed per unit area is calculated according to the degree of damage to crops caused by diseases and pests, and the pump 28 is used to achieve the calculated amount of sprayed at the current vehicle speed of the speed sprayer 10. drug delivery pressure PO
is calculated. The microcomputer 48 obtains the actual delivery pressure Pa of the drug from the pump 28 as feedback information from the detected value from the pressure sensor 54. The pressure regulating valve 30 is operated via the actuator 52 so that Pa becomes Po. Note that the higher the pressure regulation value in the pressure regulation valve 30, the higher the pressure at the nozzle 38.
The ejection pressure of the medicine increases at , and the amount of medicine sprayed from the nozzle 38 increases. When spraying special chemicals for crop disease control, switch 50. 51 are turned on and off, respectively, and the microcomputer 48 controls the amount of the chemical sprayed only in accordance with the degree of damage to the crops caused by the disease.

Also, when spraying a chemical specifically designed to control crop pests, switch 50. 51 are turned off and on, respectively, and the microcomputer 48 controls the amount of chemical sprayed only in accordance with the degree of damage to crops caused by pests.

In the illustrated embodiment, the speed sprayer 10 is described as a chemical spraying vehicle, but it goes without saying that the present invention is applicable to other chemical spraying vehicles such as a boom sprayer.

In the illustrated embodiment, the amount of medicine sprayed is increased or decreased by changing the pressure regulating value of the pressure regulating valve 30. However, if the nozzle 38 is of a variable ejection amount type, the nozzle is It is also possible to increase or decrease the amount of chemical sprayed by increasing or decreasing the spray amount at 38 or by automatically increasing or decreasing the vehicle speed of the speed sprayer 10. [Effects of the Invention] In the inventions of claims 1 and 3, the degree of damage to crops caused by diseases is detected, and the amount of chemical sprayed is controlled according to the detected degree of damage to crops. The amount of sprayed chemicals can be appropriately controlled according to the degree of damage to crops caused by diseases, which changes from moment to moment while the spraying vehicle is running. Also,
The operator does not need to perform any special operations to control the amount of chemical sprayed, so the operator can experience the labor involved. In the inventions of claims 2 and 3, the degree of damage to crops caused by pests is detected, and the amount of destruction of the chemical is controlled according to the detected degree of damage to the crops. The amount of chemicals sprayed can be appropriately controlled according to the degree of damage to crops caused by pests, which changes moment by moment while the vehicle is running. Furthermore, since the operator is not required to perform any special operations in controlling the amount of sprayed medicine, the operator can experience the labor involved.

The invention of claim 4 focuses on the fact that there is a certain relationship between the degree of damage to crops caused by diseases and the intensity of odor, and detects the degree of damage to crops caused by diseases from the intensity of odor. ．． Therefore, the degree of damage to crops caused by diseases can be appropriately detected.

The invention of claim 5 focuses on the fact that there is a certain relationship between the degree of damage to crops caused by insect pests and the intensity of insect voices, and it is possible to determine the degree of damage to crops caused by insect pests based on the intensity of insect voices. Detect the degree.
Therefore, the degree of damage to crops caused by pests can be appropriately detected.

[Brief explanation of drawings]

The drawings relate to an embodiment of the present invention; FIG. 1 is a block diagram of the chemical flow system and spray amount control system, and FIG. 2 is a side view of the speed sprayer. DESCRIPTION OF SYMBOLS 10... Speed sprayer (medicine dispersing vehicle), 30... Pressure regulating valve, 40... Spray amount control part, 42... Odor sensor, 44... Hearing sensor. Figure 2 10! 2 16 14 Procedural official document (spontaneous) October 4, 1999

Claims (5)

[Claims] (1) A chemical spraying vehicle (10) that sprays chemicals on crops in the field while moving around the field detects the degree of damage to crops caused by diseases and pests, and sprays chemicals according to the degree of crop damage. A method for controlling the amount of a chemical sprayed by a chemical spraying vehicle, characterized by controlling the amount of sprayed by a chemical spraying vehicle. (2) A chemical spraying vehicle (10) that sprays chemicals on crops in the field while moving around the field detects the degree of damage to crops caused by diseases and sprays chemicals according to the degree of crop damage. A method for controlling the amount of a chemical sprayed by a chemical spraying vehicle, characterized by controlling the amount. (3) A chemical spraying vehicle (10) that sprays chemicals on the crops in the field while moving on its own in the field detects the degree of damage to crops caused by pests and sprays chemicals according to the degree of crop damage. A method for controlling the amount of a chemical sprayed by a chemical spraying vehicle, characterized by controlling the amount. (4) The method for controlling the amount of chemical sprayed by a chemical spraying vehicle according to claim 1 or 2, characterized in that the degree of damage to crops caused by a disease is detected from the intensity of odor. (5) The method for controlling the amount of chemical sprayed by a chemical spraying vehicle according to claim 1 or 3, characterized in that the degree of damage to crops caused by pests is detected from the strength of insect voices.