According to space constraints of the traditional agricultural environment monitoring system, a small database called SQLite was transplanted into the ARM and Linux operation which could store and manage the field inf...
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ISBN:
(纸本)9783642183355
According to space constraints of the traditional agricultural environment monitoring system, a small database called SQLite was transplanted into the ARM and Linux operation which could store and manage the field information. Users can get information anytime and anywhere through the GSM (Global System for Mobile Communications) network and the WSN(Wireless Sensor Network) by this design, instead of inquiring data from the PC(Personal computer) which was widely used now. Sensors embedded in the environment, information spread in the air and captured by the handheld instruments, which is a typical application of pervasive computing.
A network platform scheme targets the Zigong City's characteristic agriculture is designed, which is according to the actuality of characteristic agriculture, the requirements of Comprehensive Information sharing,...
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ISBN:
(纸本)9783642183324
A network platform scheme targets the Zigong City's characteristic agriculture is designed, which is according to the actuality of characteristic agriculture, the requirements of Comprehensive Information sharing, and the status of city's network topology. In the scheme, many solutions are given out, such as the network architecture, distributed data storage, remote diagnosing, expert decision-making, comprehensive information sharing, distance learning & training, information managing, and the single sign-on logging, etc. Finally, the capability and security of the network scheme is analysed and summarized.
In order to realize the farmland information pinpointing acquisition, this paper has conducted the technology research for farmland information collecting and processing based on the DGPS. According to the precision a...
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ISBN:
(纸本)9783642183355
In order to realize the farmland information pinpointing acquisition, this paper has conducted the technology research for farmland information collecting and processing based on the DGPS. According to the precision agriculture's demand which agricultural condition information should be made positional, fast, precise, continuous acquisition, system uses the DGPS receiver and the touch-screen computer, uses Microsoft Access database and uses Visual Basic 6.0 to establish the application program, which used in the farmland information acquisition and processing. According to the farm land contract's demand, the method is established by using DGPS receiver to survey and drawing for field length of side and the area, which was applied in the farm and the effect was good. the result shows that this technology had very good usability.
At present, there are large quantities of heterogeneous agriculture database in the network. agriculture information resources sharing are the tendency of modem agriculture development. Being aimed at the problem of &...
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ISBN:
(纸本)9783642183539
At present, there are large quantities of heterogeneous agriculture database in the network. agriculture information resources sharing are the tendency of modem agriculture development. Being aimed at the problem of "information island", "duplication of similar projects" and urgent need for agriculture information resources sharing existing in agriculture database construction, the feature of XML's suitable for information sharing is analyzed, some key techniques of information sharing are studied, and the implementation plan of agriculture information resources sharing system is provided based on XML in this paper. the system realizes the information sharing and integration of heterogeneous agriculture databases making full use of the advantages of the XML's independence with platform, easy extension and may format. the system has good extendibility.
It is necessary to research a cheap and simple fixed water distribution device according to the current situation of the technology of low-pressure pipe irrigation. this article proposed a fixed water distribution dev...
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ISBN:
(纸本)9783642183324
It is necessary to research a cheap and simple fixed water distribution device according to the current situation of the technology of low-pressure pipe irrigation. this article proposed a fixed water distribution device with round table based on the analysis of the hydraulic characteristics of low-pressure pipe irrigation systems. the simulation of FLUENT and GAMBIT software conducted that the flow of this structure was steady with a low head loss comparing to other types of devices. In order to improve the design efficiency, a program was made using Visual Basic. the system was user-friendly, flexible operation, convenient and able to meet the needs of different users.
the indoor air temperature of greenhouse is an important parameter in environmental monitoring. Existing research on it has many, and the mathematical models have been made. But the obtained models do not apply to the...
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ISBN:
(纸本)9783642183355
the indoor air temperature of greenhouse is an important parameter in environmental monitoring. Existing research on it has many, and the mathematical models have been made. But the obtained models do not apply to the northern areas features of dry and cold. On the basis of previous studies, the indoor air temperature model of greenhouse will be re-modeling by using the regression analysis method in this paper. Analysis each convection heat transfer coefficient of the model and re-established them. In the case of known the outdoor weather conditions, the solution of the indoor temperature will be implemented by using the computer programming. And the data of a period is selected randomly from the observational data to validate the model is feasible and applied.
As a kind of advanced productive forces, the advantage and potential of E-commerce could not be ignored for upgrading the industrialization degree of agriculture, adjusting the agricultura structure, reducing the tran...
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ISBN:
(纸本)9783642183539
As a kind of advanced productive forces, the advantage and potential of E-commerce could not be ignored for upgrading the industrialization degree of agriculture, adjusting the agricultura structure, reducing the transaction cost of agricultural products and enlarging the market sale range and channels of agricultural products. this paper analyzes the present status and problems of application of Chinese agricultural E-commerce, points out that constructing primary products marketing platform is the first step to develop agricultural E-commerce. Combining withthe situation and characteristics of Chinese agriculture, it gives out constructing programs and the frameworks of Chinese primary products marketing platform. Anlysize these programs and proposed Implementation Strategy from the Adaptive Point of View.
MODIS data is the world's best remote sensing data of free receiving. It plays an important role in agriculture science and application. However, there is a serious problem about duplicated establishment of MODIS ...
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ISBN:
(纸本)9783642183539
MODIS data is the world's best remote sensing data of free receiving. It plays an important role in agriculture science and application. However, there is a serious problem about duplicated establishment of MODIS data receive station in China, and it has brought a tremendous waste of money. this paper presents research work on utilizing data grid technology to integrate heterogeneous distributed MODIS data sources. We studied and implemented a three-layer structure for data interoperation, and designed the extensible XML-based spatial data access language to support cross-border data computation. We developed the MODIS data catalogue service to facilitate users and improve system performance. the research helps to release the conflict between duplicated establishment of MODIS receiving station and less effectively data sharing.
the paper analyzes the mode of organic soybean production supply chain and identifies the information needed to be recorded in each step of producing organic soybean through surveying the actual situation of organic s...
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ISBN:
(纸本)9783642183355
the paper analyzes the mode of organic soybean production supply chain and identifies the information needed to be recorded in each step of producing organic soybean through surveying the actual situation of organic soybean on the Red Star Farm combined withthe mode of operation among enterprises, then it ensures integrity and consistency of information flow chain. At the same time, it establishes organic soybean production information traceability system, which adopts B/S architecture, ASP dynamic web technology and SQL Server 2005 database. By the system, enterprises can quickly inquire about the information of cultivation and processing of raw materials as well as the situation of products in time. Meanwhile, consumers can also inquire about the information of products by means of Internet quickly and easily, which enhances the transparency of production chain and ensures food safety.
Decision tree classification algorithms have significant potential for remote sensing data classification. this paper advances to adopt decision tree technologies to classify remote sensing images. First, this paper d...
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ISBN:
(纸本)9783642183324
Decision tree classification algorithms have significant potential for remote sensing data classification. this paper advances to adopt decision tree technologies to classify remote sensing images. First, this paper discussed the algorithms structure and the algorithms theory of decision tree. Second, C4.5 basic theory and boosting technology are explained. the decision tree technologies have several advantages for remote sensing application by virtue of their relatively simple, explicit and intuitive classification structure.
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