CN201561750U

CN201561750U - Farmland working area metering system based on GPS

Info

Publication number: CN201561750U
Application number: CN2009202361117U
Authority: CN
Inventors: 张西良; 陈进; 李萍萍; 李耀明; 董进泉; 张锋; 黄治根; 杨春松; 周毅华
Original assignee: Jiangsu University
Current assignee: Jiangsu University
Priority date: 2009-10-13
Filing date: 2009-10-13
Publication date: 2010-08-25
Anticipated expiration: 2019-10-13

Abstract

The utility model relates to a farmland working area metering system based on GPS. The system comprises a GPS receiving module, a single chip microcomputer, a memorizer, a keyboard, a display unit, a printer and a power source, wherein the GPS receiving module receives the GPS satellite signal and inputs the positioning information to the single chip microcomputer through the RS232 serial port; the single chip microcomputer processes the positioning information and calculates the area of the farmland; the memorizer stores the working record; the keyboard and the display unit are operated to input the working charging unit price, set the date, correct the working route, calculate the working area and inquire the working record; and the mini printer prints and outputs the working record. The farmland working area metering system integrates the GPS and the single chip microcomputer to increase the accuracy of measuring the farmland working area.

Description

Based on GPS farmland working area measuring system

Technical field

The utility model belongs to the agricultural machinery technical field of measurement and test, is specifically related to a kind ofly based on GPS farmland working area measuring system, is mainly used in the agricultural machinery farmland working area and measures, and realizes farmland operation valuation and management.

Background technology

Agricultural machinery cross-regional operations such as united reaper are the farmland production operation forms that is fit to China's national situation, the strange land operation, tractor driver and peasant wish to know the area and the output of actual farmland operation, and configuration area or output pricing system are agricultural machinery development inexorable trend, and be very urgent.

Detect the agricultural mechanical operation area method at present in real time and mainly contain two kinds: the one, the area measurement instrument or the fee register of employing GPS positioning system and microcomputer development, as the patent " farmland working area measuring instrument " of " the LMJ-I area measurement instrument " of U.S.'s " GPS area measurement instrument-journey 300 ", path, Hangzhou Science and Technology Ltd., Beijing Research Center for Agriculture Information Technology (zl200520113683.8), all be to locate by GPS, one week of the operation measured zone that detours, automatically the coordinate of record operation route calculates the area that is centered on then; The 2nd, detect agricultural mechanical operation width and travel distance in real time, and then calculate area and price, as the patent " method of automatic on-line measurement of real-time actual grain cutting width and device " of Agricultural University Of Hebei (zl200510012373.1), the patent of Beijing Research Center for Agriculture Information Technology " a kind of reaping area measurement and charge system and method " (zl200710175342.7), all, calculate output operation area and expense in real time by single-chip microcomputer by ultrasound examination harvesting fabric width; The patent of Zhao Jinzhou " agricultural vehicle farming area measurement fee register " (zl200820028159.4), comprise by absorption and be installed in general yardstick measurement dish and counter on the different agricultural vehicle wheel shafts, accumulative total is measured moving contact driving lever and the moving contact and the static contact of tire running week long data, moving contact driving lever and moving contact and static contact contact with each other during by farming, accumulative total tire circumference data, add the scale conversion data of less than one border on the yardstick measurement dish, the length and width degree be can measure, and then area and price calculated.

For first method, adopt the high-precision GPS positioning system, the price height should not be applied, and adopts general GPS positioning system, because bearing accuracy is low, the working area error of calculation is big, also is difficult to application; Second method, because poor, the operating mode complexity of agricultural mechanical operation environment, ultrasound examination harvesting fabric width and moving contact driving lever and moving contact and static contact contact measurement tire running week long data exist all that error is big, reliability is hanged down defective.

Summary of the invention

The purpose of this utility model is to overcome the deficiency of above-mentioned existence, disclose a kind of based on GPS farmland working area measuring system, be characterized in: adopt GPS positioning system and single-chip microcomputer combination, have regular profile characteristics at low problem of GPS bearing accuracy and general farmland, by the farmland profile is preestablished or selects, detouring one week of operation measured zone, automatically after the coordinate of record operation route, the farmland operation route that obtains is repaired, and to the fixed point coordinate convert, and then calculate the area that is centered on, thereby improve the farmland working area measuring accuracy.

The technical scheme that realizes the utility model purpose is: based on GPS farmland working area measuring system, this system comprises GPS receiver module, single-chip microcomputer, storer, keyboard, LCD display, printer and power supply; The GPS module receives gps satellite signal, and locating information is input in the single-chip microcomputer by the RS232 serial port; Single-chip microcomputer is handled locating information, calculates the area in farmland; Storer is preserved charge book, and charge book comprises coordinate, farmland working area, operation unit price and total price, the job date data of operation route; By keyboard and LCD display input operation charge unit price, set the date, dressing operation route, computational tasks area and inquiry job record; Mini-printer printout charge book.

The utility model and other area measurement instrument or fee register based on the GPS positioning system compare, advantage is: can preestablish the farmland profile by being provided with of single-chip microcomputer and peripheral hardware thereof and select and the finishing of operation route, improve the area measurement precision greatly, can satisfy tractor driver and peasant to the requirement of farmland working area accuracy of measurement, can satisfy cheap, simple in structure, easy to operate request for utilization again, be convenient to application in multiple farmland operation.

Description of drawings

Fig. 1 be the utility model embodiment 1 based on GPS farmland working area measuring system block diagram

Embodiment

Below in conjunction with the drawings and specific embodiments the utility model is described in further detail.

Embodiment 1

Based on GPS farmland working area measuring system, adopt general GPS positioning system and single-chip microcomputer, have regular profile characteristics at low problem of GPS bearing accuracy and general farmland, by the farmland profile is preestablished or selects, detour one week of operation measured zone at the GPS receiver module, write down automatically after the coordinate of operation route, the farmland operation route that obtains is repaired, and the fixed point coordinate converted, and then calculate the area centered on.

As shown in Figure 1, based on GPS farmland working area measuring system, comprise GPS receiver module, single-chip microcomputer, storer, keyboard, LCD display, printer and power supply etc.The GPS receiver module adopts UP500 type GPS receiver, integrated gps receiver, built-in aerial and electrify restoration circuit; Single-chip microcomputer is the C8051F020 type, and 3～5.5V wide region low-voltage power supply has than strong cohesiveness mouth and data-handling capacity, and interface is simple, and volume is little, and is low in energy consumption, is fit to very much the portable type measuring system; Storer adopts AT24C04, is 4KB, SPI serial line interface EEPROM, preserves coordinate, farmland working area, operation unit price and the charge book data such as total price, job date of operation route; Keyboard adopts 4 * 4 membrane keyboards, sets 0～9 10 numeric keys, upper and lower, left and right cursor movement key, acknowledgement key, six function keys of reset key; LCD display adopts 128 * 64 Chinese character image LCD, uses 7920 chipsets, the band Chinese character base, and blue screen wrongly written or mispronounced character band is backlight; Printer adopts RD-E32 mini-printer, printout charge book; Power supply is by the 24V storage battery power supply, and voltage stabilizing output 5V, gives power supplies such as single-chip microcomputer, GPS receiver module and printer.By keyboard and LCD display input operation charge unit price, set the date, dressing operation route, computational tasks area, inquiry job record etc.

Claims

1. based on GPS farmland working area measuring system, it is characterized in that: this system comprises GPS receiver module, single-chip microcomputer, storer, keyboard, display, printer and power supply; The GPS module receives gps satellite signal, and locating information is input in the single-chip microcomputer by the RS232 serial port; Single-chip microcomputer is handled locating information, calculates the area in farmland; Storer is preserved charge book; By keyboard and display input operation charge unit price, set the date, dressing operation route, computational tasks area and inquiry job record; Mini-printer printout charge book.

2. according to claim 1 based on GPS farmland working area measuring system, it is characterized in that: described GPS receiver module adopts UP500 type GPS receiver, integrated gps receiver, built-in aerial and electrify restoration circuit.

3. according to claim 1 based on GPS farmland working area measuring system, it is characterized in that: described single-chip microcomputer adopts the C8051F020 type.

4. according to claim 1 based on GPS farmland working area measuring system, it is characterized in that: described storer adopts 4KB, SPI serial line interface EEPROMAT24C04.

5. according to claim 1 based on GPS farmland working area measuring system, it is characterized in that: described keyboard adopts 4 * 4 membrane keyboards, sets 0～9 10 numeric keys, upper and lower, left and right cursor movement key, acknowledgement key, six function keys of reset key; Described display adopts 128 * 64 Chinese character image LCD; Described printer adopts the RD-E32 mini-printer; Described power supply is by the 24V storage battery power supply, and voltage stabilizing output 5V, gives single-chip microcomputer, GPS receiver module and printer power supply.

6. according to claim 1 based on GPS farmland working area measuring system, it is characterized in that: described charge book comprises coordinate, farmland working area, operation unit price and total price, the job date data of operation route.