Metering system fields Agristar
Offer type: salePublished: 10.07.2018
Price: | 4 000 UAH |
Seller: | Gonchar Svetlana |
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Address: | Ukraine, Zaporiz'ka Oblast', Zaporizhia |
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Key features AGRISTAR: — measure the area of any shape, size and location; — view the file dimensions on the monitor; — the name of the field; make notes about culture, class, date; — Is a function of a car Navigator with the License card Navitel, IGo. You just need to take the "AGRISTAR" themselves. To circumvent or to avoid the plot of land (fields), and the program will automatically take all the necessary measurements. Producing measurements, the system continuously calculates the error rate, and its increase will signal You about it. And most importantly, the system will not record data with a high error rate. If, when measuring, you run into an obstacle, You can put "pause" in measurements to overcome the obstacle and continue measuring. On the device's screen You will see the configuration (shape) of the measured area. You can give the name of the measured part and save it in the device memory. In the device licensed program is installed with the navigation system IGo, with it You can easily get to any town, city, district center. Measurement accuracy measurement Accuracy is the most common question. First of all, we should distinguish between "accuracy" and "precision" program. The fact that the accuracy of GPS devices (car navigation devices) does not depend on the size and quality of the antenna, and the algorithm of calculation of the coordinates. The program "Agrosuper" spelled out your algorithm prometa, which caused the precision and cost of the whole device. For example, let's calculate the error on the field of 200 hectares, the Perimeter of the field (200 ha) within 8 km. the Maximum deviation — 1 m 8,000 m * 1 m = 8,000 square meters = 80 acres (0.8 ha). I.e. when the maximum deviation (to one side) the error is 0.8%. This is the ideal. But in practice the error is much less because if there is a shift of the coordinate in some direction (0.5 m) to one side of the field the tool will cut at 0.5 m, and opposite so much add. Practical error does not exceed 0.4 — 0.6 percent
Specifications: • operating temperature: -10 to +60 • storage Temperature: -20 to +70C • operating Humidity: 45% - 80% • storage Humidity: 30% - 90% • operating frequency: 372 MHz • Microprocessor control: ATLAS 372 MHz SD RAM: 64 MB – 256 MB • Flash: 128 MB • Navigation software: SD card • operation system: Windows CE 5.0 Core • compiler Type: ARMV4I • display Size: 3.5 inches • Audio output: tone CD 2 track • Audio power: dvuhruchevoj channel headphones 0.25 W/8/2W channel development • Average power: 1.5 W • idle Power: 20 mW • battery Type: rechargeable built-in lithium battery • the validity of the battery: up to 3 hours of continuous work; 200 hours standby • Chipset: Si-RF III Start • Code s/a (indicator of the level of accuracy for GPS): 1.023 MHz (the speed of signal transmission) • Channels: 20 • tracking Sensitivity: -159 dBm • Accuracy: 2D RMS use wide-band amplifying system (WAAS) • Speed: 0.1 m/s • request Processing: average of 0.1 sec. • Start from hot condition: 3 sec. • Start from warm condition: average 38 sec. • Cold starts: 100 sec. • Maximum speed: 515 m/s • Acceleration: 4 g • Internal antenna: built-in active ceramic antenna • internal antenna Gain: 27 dB • internal antenna Voltage: 3.3 V 5%