Traditional Culture Encyclopedia - Photography major - How to write a good surveying and mapping paper
How to write a good surveying and mapping paper
With the rapid development of information technology, China's surveying and mapping technology has also developed from traditional manual surveying and mapping to digital surveying and mapping, and the surveying and mapping technology has made rapid development. This paper discusses the advantages and applications of digital surveying and mapping technology. The application of digital surveying and mapping technology is a new surveying and mapping technology with the development of computer and network technology and the intelligence of measuring instruments. The concept of digital China and digital city and the start of related digital projects, especially the development of global positioning system (GPS), geographic information system (GIS), photogrammetry and remote sensing (RS), digital mapping and ground survey, have made profound changes in the means and methods of engineering survey. The service field of engineering survey has also been further extended, and it is developing towards automation, real-time and digitalization of survey data collection and processing. Advantages of digital mapping technology 1. Through computer simulation, the terrain, geomorphic features and cadastral elements can be reflected intuitively and vividly (clearly) on the screen, which can be seen at a glance, and basically change and make up for the defects that traditional products such as lines, symbols, numbers and characters cannot be understood without certain professional knowledge. 2。 Digital surveying and mapping products are easy to use, maintain and update. They can keep product information up-to-date, supplement and modify it at any time, and make new maps for use at any time. 3。 According to the needs of different users, we can reprocess the data of various elements of products to get maps with different uses, and we can also splice and zoom the graphics at will, which is more widely used. 4。 Using digital (topographic and cadastral) surveying and mapping results as the base map, various planning and design (such as land and resources development planning, urban road network design, etc.) are carried out. ) can be carried out on the computer, it is convenient to design and compare various schemes, and the statistics, summary, superposition and analysis of various elements are also convenient and accurate. With the help of computers, the automation, scientificity and standardization of surveying and mapping production have been greatly improved, and the application level of digital surveying and mapping products will also reach a new height. In addition, it also shows many advantages in other aspects, but from the above points, it can be seen that digital (topographic and cadastral) surveying and mapping meets the requirements of modern social informatization and is the development direction of modern surveying and mapping. Therefore, professional surveying and mapping units that used to focus on traditional surveying and mapping now take the development of digital surveying and mapping technology as their development goal and direction. The second is the choice of operation mode in digital surveying and mapping. Digital surveying and mapping equipment is total station plus electronic notebook or electronic tablet, and the operation is divided into coding method and non-coding method. When recording measurement data, the coding method must input the feature code according to the breakpoint type and its geometric relationship. The operator not only has to memorize the code, but also needs more information exchange between the measuring station and the prism to input the code correctly, so the operation speed is slow. In particular, the local topography is complex, the visibility is difficult, and the measurement of a ground object is discontinuous, and it can only be completed after observation by several stations, which is difficult to operate and has many opportunities for mistakes. No code operation does not need to input any code, but draws a sketch to record the measured points and adjacent relations. There is almost no contact between the workstation and the prism. After the station aims at the target and operates the electronic manual to drive the total station to measure data, it only needs to report the dot number to the operator at the prism. It is easy for operators who have knowledge of flat surveying and mapping to draw sketches with prisms on the spot, and it is not easy to make mistakes. In fact, surveying and mapping work is mainly carried out at the prism, and the observation speed of the station is very fast. A total station can observe 2~3 prisms, which is equivalent to the plane mapping of 2~3 drawing boards. Therefore, the operation method without code is more acceptable to surveyors. In the past, the digital surveying and mapping recording equipment was mainly electronic notebook, but at present, there are many introductions and reports about electronic tablet. The so-called integrated indoor and outdoor operation method, that is, using electronic tablet (portable computer) to draw the broken point in the field, is described as the most advanced method. But in fact, if the electronic tablet is connected with the total station, it is difficult for the draftsman to edit the drawings on the electronic tablet because of poor visibility and long distance of digital mapping. If you draw through remote observation supplemented by the description of the operator of the mirror station, it not only requires high skills and experience of the electronic flat panel draftsman, but also is slow and easy to make mistakes. In this respect, it is similar to the traditional flat drawing method, the only difference is that it does not need paving and computer editing to replace manual drawing. In order to solve this problem, remote control electronic tablet has been introduced in the market. Although the use of remote tablet allows draftsmen to draw with prisms on the spot, the equipment investment is much higher than that of electronic notebooks. The speed of field work is also lower than that of electronic manual sketching. In fact, it is to pay a high price for the time outside in exchange for the time inside. If the difficult field operation conditions are taken into account, make. . . . . . Secretary hodgepodge network
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