[특허]Variable rate application system

Variable rate application system 원문보기

IPC분류정보
국가/구분	United States(US) Patent 등록
국제특허분류(IPC7판)	A01C-015/00 A01C-021/00 A01C-023/00
출원번호	US-0902174 (1992-06-22)
발명자 / 주소	Monson Robert J. (St. Paul MN) Bauer Norman A. (Watertown MN)
출원인 / 주소	Ag-Chem Equipment Co., Inc. (Minnetonka MN 02)
인용정보	피인용 횟수 : 112 인용 특허 : 0

초록 ▼

A variable rate fertilizer spreading apparatus for spreading a precise amount of multiple types of fertilizers upon a field based upon a location in the field. The system comprises a controller accessing a soil map indicating the type of soil for each portion of the field, several fertilizer maps storing the desired fertilizer level of each of the fertilizers stored in product bins on the tractor, and several status maps each indicating the current fertilizer level at various locations of the field to be fertilized. By accessing the speed of the tractor via a speed indicator, and ascertaining the location of the tractor in the field via a position locator, such as an LORAN or GPS system, an expert system determines the dispensing rate of each of the fertilizers based on the various maps and the position and speed indicators such that the proper dispense rate of the fertilizers from bins is set to attain the desired level of fertilizers. The expert system accesses standard and proprietary data tables and processes complex calculations taking into account the interaction effects of multiple fertilizers being dispensed upon a particular type of soil, as ascertained from the soil map. Thus, each portion of a field can be characterized and fertilized such that the resulting level of each of the fertilizers matches the fertilizer maps after spreading fertilizer, where no predetermined path of vehicle is necessary. The current fertilizer level map is updated after a dispensing pass to provide a real-time record.

대표청구항 ▼

Fertilizer blending and spreading apparatus comprising: a vehicle; a first product bin mounted on the vehicle for holding a first fertilizer to be applied to a field to be fertilized; dispensing means mounted on the vehicle operative in response to a first dispenser control signal for dispensing the first fertilizer at a selected dispensing rate from the first product bin; conveying and spreading means mounted on the vehicle for conveying the first fertilizer dispensing from the first bin via the dispensing means and spreading the first fertilizer over the ground; and control means operatively connected to the dispensing means for generating the first feeder control signal to control the rate of dispensation of the first fertilizer, the control means including: (a) digital soil map means for storing a digital soil map indicating a distribution of different soil types in the field to be fertilized; (b) first fertilizer map means for storing a first digital fertilizer map indicating a desired distribution of the first fertilizer in said field to be fertilized; (c) first status map means independent of said first fertilizer map means for storing data representative of a first field characteristic; (d) position locator means for indicating the position of the vehicle relative to said field as it moves about said field; (e) speed indicator means for indicating the speed of said vehicle as it moves about said field; and (f) first signal generating means responsive to said soil map means, said first fertilizer map means, said independent first status map means, said position locator means and said speed indicator means for controlling the generation of said first dispenser control signal by correlating the position of said vehicle in the field to said soil map, said independent first status map and said first fertilizer map, and determining the type of soil the vehicle is currently over, the first field characteristic where the vehicle is over, the desired level of the first fertilizer, and the vehicle speed to provide that the first fertilizer can be applied at different rates to attain the desired distribution of the first fertilizer in the field according to the first fertilizer map means as the vehicle moves about the field.

이 특허를 인용한 특허 (112)

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IPC	Description
A	생활필수품
A62	인명구조; 소방(사다리 E06C)
A62B	인명구조용의 기구, 장치 또는 방법(특히 의료용에 사용되는 밸브 A61M 39/00; 특히 물에서 쓰이는 인명구조 장치 또는 방법 B63C 9/00; 잠수장비 B63C 11/00; 특히 항공기에 쓰는 것, 예. 낙하산, 투출좌석 B64D; 특히 광산에서 쓰이는 구조장치 E21F 11/00)
A62B-1/08	.. 윈치 또는 풀리에 제동기구가 있는 것

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Variable rate application system 원문보기

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Variable rate application system 원문보기

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연구과제 타임라인

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