How Does GPS tracker Use GPS tracking System

2018/5/28 15:26:10

1. Basic principles and characteristics of GPS positioning tracking system


There are 24 GPS work satellites, evenly distributed on 6 tracks with an inclination of 55°. These satellites continuously send navigation and positioning information to the ground users in real time and in real time. The user receiver calculates the position coordinates in real time based on the received satellite information. GPS tracking system is one of the high-tech surveying and mapping technologies of today. Its global, all-weather, multi-functional, and high-precision features are recognized by all walks of life and are widely used.

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2. The application of GPS tracking system in agriculture


Using GPS technology, with remote sensing technology and geographic information systems, the distribution of soil components and properties can be monitored. Agricultural crop yield distribution, rational fertilization and agricultural precision management. Can effectively save costs and improve production efficiency. Using differential GPS technology can do the following:


(1) Before sowing, first select a soil sampling vehicle suitable for field operation, and configure the GPS and computer on the sampling vehicle. When the sampling vehicle collects soil samples in Tianzhong according to certain requirements, the GPS receiver determines the exact position of each sample collection point and inputs it into the computer. The computer calibrated each sampling point according to the configured geographic information software, and then plotted a soil sample point distribution map. We can accurately determine the fertility of each land based on this map.


(2) Configure the combine, harvester monitor, and GPS receiver on the combine. A crop yield monitoring system can be formed. For example, when monitoring a large area of soybean production and harvesting soybeans, the soybean monitor will record the number of soybeans and the yield of each soybean, and the GPS receiver will record the location of the soybean and draw it on a computer basis for each piece of land. The yield map. We use this map and soil sample point distribution maps for comprehensive comparative analysis to identify relevant factors affecting soybean production, so as to conduct targeted fertilization and management, and increase the yield of crops.


(3) Since we plotted the soil sample point distribution map and understood the nutrient content of each soil, we can use this map to accurately apply different waste materials for each type of land under the control of GPS. This will not only reduce the waste of fertilizer, but also ensure the effective absorption of crops and the maximum utilization rate of land, accurately and effectively manage the growth of crops. In addition, according to foreign data, relying on differential GPS for precision navigation, guiding the agricultural machinery spraying herbicides at night, can greatly increase weeding efficiency, but also can save a lot of pesticides.

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3. The application of GPS technology in forest management


(1) For the continuous inventory of forest resources, the previous continuous inventory of resources was based on experience to find the most obvious object points from the fixed sample plots. The plots were measured by compass and measured lines at an angle. It is more difficult to find the sample after five years and the reset rate is low. With the differential GPS navigation function, as long as the vertical and horizontal coordinates of a fixed sample plot are input, the center of the sample plot can be directly accessed according to the navigation direction. Through the use of GPS technology for continuous inventory in 2003, the work efficiency was improved by more than 2 times compared to previous methods, and the accuracy was extremely high.


(2) In the second review of forest resources. The use of differential GPS technology can more accurately and effectively use the angle gauge method to review the forest resources, and can accurately reach a forest class, a small class, and a certain location on the map. It has an important role in measuring the area of afforestation land and the adjustment of existing forest land. In addition, the use of GPS positioning tracking system to measure the location of roads, bridges, and transmission lines in forest areas is not only fast, but also overcomes the high density of forested mountains, poor traffic conditions and other conventional measurements.


(3) For forest fire prevention. GPS technology can play an important role in forest fire prevention. Using differential GPS technology, a thermal infrared system and a GPS receiver are installed on a loop detector of a fire-fighting aircraft. When fire-fighting aircraft fly, if there is a fire, the thermal infrared system immediately finds and is determined by the GPS to determine the coordinates of the location where it occurs, cooperates with the ground fire tower, and quickly reports to the ground receiving station. The fire fighting team closest to the fire will be in the shortest possible time. Feel and quickly extinguish.