What is a 3S system and what does it do?

3S technology is a combination of remote sensing technology (RS), geographic information systems (GIS) and global positioning systems (GPS), which is a combination of space technology, sensor technology, satellite positioning and navigation technology, computer technology and communication technology. It is a multidisciplinary and highly integrated modern information technology that collects, processes, manages, analyzes, expresses, disseminates and applies spatial information. 3S technology is the forerunner of modern technology development, plays an important role in the world's scientific and technological progress, and is also widely used in the field of agriculture.

3s"The system is a combination of Geographic Information System (GIS), Global Positioning System (GPS), and Remote Sensing System (RS).

A GIS system is a data management system with a specialized form of information system space. In the strict sense of the word, it is a computer system that centralizes, stores, operates, and displays georeferenced information. For example, data can be identified based on its location in the database.

Interns also often think that the entire GIS system includes the operator as well as the data fed into the system. GIS technology can be applied to scientific surveys, resource management, property management, development planning, mapping and route planning.

The GPS system uses low-frequency signals to maintain considerable signal penetration even in poor weather. Up to 98% global coverage; High-precision three-dimensional fixed speed timing; Fast, time-saving and efficient; Wide range of applications and multi-functions; Movable positioning. Unlike the dual-satellite positioning system, the receiver does not need to send any signal during use; This increases concealment and improves its effectiveness in military applications.

RS systems can obtain a wide range of data in a short period of time, and the information can be represented in both visual and non-visual forms, as well as travel to hard-to-reach or dangerous places instead of humans. Remote sensing technology is mainly used in navigation, agriculture, meteorology, resources, environment, planetary science and other fields.

3S technology is a general term for remote sensing (RS), geographic information system (GIS) and global positioning system (GPS), because the corresponding English of these three concepts contain an S respectively, and it is a technology that integrates remote sensing technology, geographic information system technology and global positioning system technology. To put it simply, in the 3S technology, RS is responsible for collecting information, GPS is responsible for the spatial positioning of various information, and GIS is responsible for analyzing and processing all kinds of information to form a complete geographic information management system.

3S technology is the three major technical support systems for spatial information acquisition, storage, management, update, analysis and application in the Earth observation system, and they all have independent and parallel development and achievements. However, with the development of applications, it is often difficult to meet the requirements of comprehensive engineering applications for information collection, processing, and analysis by using one of these technologies alone. Therefore, the research and application of 3S technology is developing in the direction of integration (or integration).

In the 3S integrated system, GPS is mainly used to provide the spatial position of the target, various sensors and delivery platforms (vehicles, ships, aircraft, satellites, etc.) in real time and quickly, and RS is used to provide semantic or non-semantic information about the target and its environment in real time or quasi-real-time, find various changes on the earth's surface, and update the GIS data in time; GIS carries out comprehensive processing, integrated management and dynamic access to a variety of spatio-temporal data, as the basic platform of the new integrated system, and provides geoscience knowledge for intelligent data collection.

Now the updated 3S technology should be GIS, RS, GNSS

3S management is the abbreviation of standardization, simplification and specialization.

1. Standardization is the activity of obtaining the best order within a certain range and formulating common and reusable rules for actual or potential problems, which is called standardization.

2. Simplification is to make the complex simple. This is conducive to improving work efficiency, reducing costs, and facilitating operations.

3. Specialization. The so-called "professional" should meet the following basic conditions: first, the scope is clear, and the monopoly is engaged in the indispensable work of the society; the second is the use of highly geo-intelligent technology; third, long-term professional education is required; Fourth, the individual and collective engaged in it have extensive self-discipline.