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检索条件"任意字段=2nd IFIP International Conference on Computer and Computing Technologies in Agriculture"

共 694 条记录，以下是161-170 订阅

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Monitoring crop growth status based on optical sensor

引用

1st international conference on computer and computing technologies in agriculture (CCTA 2007)

作者： Cui, Di Li, Minzan Zhu, Yan Cao, Weixing Zhang, Xijie China Agr Univ Minist Educ Key Lab Modern Precis Agr Syst Integrat Res Beijing 100083 Peoples R China Nanjing Agr Univ Minist Agr key Lab Crop Growth Regulat Nanjing 210095 Jiangsu Peoples R China

ISBN: (纸本)9780387772523

In order to detect the growth status and predict the yield of the crop, crop growth monitor measuring nitrogen content in the plant is developed based on optical principle. The monitor measures the spectral reflectance of the plant canopy at the 610 nm and 1220 nm wavebands, and then calculates the nitrogen content in the plant with the measured data. The field test was carried out to evaluate performance of the monitor. A portable multi-spectral radiometer named Crop Scan was used to measure the reflectance as a reference instrument. The result shows that the leaf reflectance measured by the monitor has a close linear correlation with that measured by Crop Scan at the 610 nm waveband (R2 = 0.7604), but the correlation between them is needed to be improved at the 1220 nm waveband. The hardware and the software of the monitor are also explained in detail. It is still need to be improved to satisfy the demand of ground-based remote sensing in precision farming.

关键词： nitrogen content crop growth ground-based remote sensing precision agriculture

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A new navigation line extraction method for agriculture implements guidance system

A new navigation line extraction method for agriculture impl...

引用

6th international conference on computer and computing technologies in agriculture, CCTA 2012

作者： Li, Mingxuan Zhang, Man Huan, Haiyan Liu, Gang Key Laboratory of Modern Precision Agriculture System Integration Research Ministry of Education China Agricultural University Beijing 100083 China

ISBN: (纸本)9783642361364

To make up the shortages of the existing vision navigation algorithms such as the noise interference and the processing speed, a new approach for navigation line detection is presented in this article. This new method was based on image boundary detection. The color images were transformed into binary ones after pre-processing. Then, three stages in this method were presented. At first, the image was divided into several sectors and the boundary of the crops was detected. Then a number of points indicating the centers of the rows were determined. At last, the navigation line was estimated by an improved linear regression algorithm. Compared to other navigation line detection algorithms, this new method could find the navigation lines more accurately. It need only about 89ms to process a picture with 640x320. So it can meet the need of agricultural real-time visual navigation when the speed is 1~2m/s. © 2013 ifip international Federation for Information Processing.

关键词： computer vision

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SwasthPhasal: An E-farming Web Portal 2

SwasthPhasal: An E-farming Web Portal

引用

2nd IEEE international conference on Advanced technologies in Intelligent Control, Environment, computing and Communication Engineering, ICATIECE 2022

作者： Saindane, Pallavi Bugtani, Siddarth Hiranandani, Yashvi Jagtap, Vishwesh Rajpal, Kabir VESIT Department Computer Engineering Mumbai India

ISBN: (纸本)9781665493963

agriculture has been India's main profession for centuries. According to the Indian Agricultural Research Institute, the need for edible grains will increase to 345 million tones in the next decade, however its role in India's GDP has recently declined. The current situation of farmers is disappointing as most of them live in severe poverty. They have to take loans to make ends meet and at times it becomes difficult to repay the loan. Our portal aims at providing crop seeds and fertilizers at cheap prices. The option of renting farming equipment would also be available. The cutting-edge technology which has been used over the past few years, has been lagging when it comes to farming. The main reason for this is both the disregard of these technologies and also the inaccessibility. Though farmers strive hard, even in this 21st century, they are bamboozled by third party retailers, which increases their poverty. In this covid pandemic, there was a huge demand for the agricultural products but it was difficult to get all the materials as well as information online. The solution to all the problems is Agro marketing which would make everything easy and secure. E-Farming provides a way for farmers to buy produce with only a basic knowledge of how to use the internet. This website is a centralized approach to guide farmers in all aspects and display current market prices of various products without brokers' cost. It will also include various government agricultural programs and access to new cultivation techniques. [2] The farmer will also be helped in the harvesting process by giving them a 6-day weather forecast and a schedule via SMS provided by the system. Along with this, they will be able to connect with agro health advisors to raise their queries regarding crop health and efficient farming techniques. © 2022 IEEE.

关键词： Portals

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A Study of Energy Efficient MAC Based on Contextual Information for Ubiquitous agriculture

引用

2nd international conference on Ubiquitous computing and Multimedia Applications

作者： Lee, Hochul Yoe, Hyun Sunchon Natl Univ Sch Informat & Commun Engn Sunchon South Korea

ISBN: (纸本)9783642209970

In the agricultural field, various technologies are being used. Especially, a sensor network related technology is being applied as a technology that has been receiving much attention in recent. The efficiency of MAC protocol of WSN (Wireless Sensor Network) is being studied in various aspects, and the studies on the method of applying such MAC protocol in the agricultural field are also needed. In this thesis, a situation information based MAC protocol that can be applied in the agricultural field is proposed. The proposed protocol determines transmission by analyzing the given situation unlike the existing MAC protocol. It determines the data availability of unchanged situation or that of insignificant range with no influence, and it allows the transmission of any changed volume upon comparing with the existing transmission data only in the case when the critical value mutually set with the serve is surpassed. It increases the energy efficiency through the method of decreasing the data size by delivering only the changed volume than the entire data and decreasing the transmission frequency by transmitting data only in the case when the critical value has been surpassed. To analyze the performance of the proposed protocol, a simulation was conducted based on the data measured in greenhouse.

关键词： WSN Ubiquitous u-IT Energy Efficient MAC Context Aware

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Greenhouse irrigation optimization decision support system 7

Greenhouse irrigation optimization decision support system

引用

7th ifip WG 5.14 international conference on computer and computing technologies in agriculture, CCTA 2013

作者： Zhang, Dongmei Guo, Ping Liu, Xiao Chen, Jinliang Jiang, Chong College of Water Resources & Civil Engineering China Agriculture University Beijing100083 China School of Computer Science and Technology Harbin Institute of Technology Harbin Heilongjiang150001 China

ISBN: (纸本)9783642543401

Greenhouse irrigation optimization decision support system (GDSS) is developed for the irrigation management of greenhouse crops in the northwest arid area of China. GDSS forecasts on relative yield and aids to develop irrigation schedule in terms of growth periods, comprehensively considering soil, crops and water supply conditions. The system consists of three modules. The database module stores all kinds of data using the Access database. The model module includes optimization models of greenhouse crops under insufficient irrigation based on uncertainty. These models are programmed by lingo, which can be invoked through internal interface. The man-machine dialogue module is designed with the principal of user control, user-friendly, visuality, usability, conciseness and uniformity. The GDSS can provide the decision makers the alternative decision making under uncertainty. © ifip international Federation for Information Processing 2014.

关键词： Decision support systems

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Research on Data Sharing Model Based on Cluster 1

引用

8th ifip WG 5.14 international conference (CCTA)

作者： Qiu, Xiaobin Chen, Hongqian Zhou, Nan China Agr Univ Network Ctr Beijing 100083 Peoples R China

ISBN: (数字)9783319196206

ISBN: (纸本)9783319196206;9783319196190

The data center is the core of digital campus, and the quality of data center depends on the accessing efficiency of data sharing. In this paper we study the advantage and disadvantage of the three current popular sharing model, and propose a sharing model based on cluster according to the reality of the digital campus. By the contrast and analysis of performance, the result show that the model can meet the requirements of the data sharing well.

关键词： Digital Campus P2P Data Warehouse Middleware HBase

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Research and Design of LVS Cluster Technology in Agricultural Environment Information Acquisition System 1

引用

9th ifip WG 5.14 international conference on computer and computing technologies in agriculture (CCTA)

作者： Zhao, Guogang Yu, Haiye Yu, Lianjun Wang, Guowei Sui, Yuanyuan Zhang, Lei Jilin Univ Coll Biol & Agr Engn Changchun 130022 Peoples R China Minist Educ Key Lab Bion Engn Changchun 130022 Peoples R China Jilin Agr Univ Sch Informat Technol Changchun 130118 Peoples R China Changchun City Acad Agr Sci Changchun 130111 Peoples R China

ISBN: (数字)9783319483542

ISBN: (纸本)9783319483542;9783319483535

With the development of agricultural informatization, agricultural environment information acquisition platform needs to collect more and more data. And with the increase of the number of data acquisition terminal, a large number of concurrent data traffic is generated on the server. This will lead to the phenomenon of excessive load which directly affects the validity of the data. Therefore, based on LVS technology, this paper designed a solution for the agricultural environment information acquisition platform. Through the experiment we know that the LVS technology can guarantee the validity of the data acquisition, which lays the foundation for the development of precision agriculture.

关键词： Agricultural information IOT Data acquisition LVS Precision agriculture

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Design and Implementation of TD-LTE-Based Real-Time Monitoring System for Greenhouse Environment Temperature 1

引用

9th ifip WG 5.14 international conference on computer and computing technologies in agriculture (CCTA)

作者： Zhao, Xin Jiao, Yang Yu, Lianjun Zhang, Chuanhong Jilin Univ Coll Biol & Agr Engn Changchun 130022 Peoples R China Sixth Middle Sch Changchun Changchun 130000 Peoples R China Changchun City Acad Agr Sci Changchun 130111 Peoples R China Changchun Univ Sci & Technol Changchun 130600 Peoples R China

ISBN: (数字)9783319483542

ISBN: (纸本)9783319483542;9783319483535

With the characteristics of fast transferring speed and wide coverage of TD-LTE network, the research designs and implements the TD-LTE-based Real-time Monitoring System for Greenhouse Environment Temperature. The TD-LTE network, which is connected with the data server of the Internet, can transmit the real-time temperature data that sensor collects to the data server. The B/S mode-based data server can realize data query, analysis and other functions. This monitoring system solves the problems that previous monitoring systems are slow and can not be transmitted at a distance, and it can also meet the need of the real-time data acquisition that precision agriculture needs.

关键词： TD-LTE Precision agriculture Data collection Long-distance monitoring

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Design of can-based variable rate fertilizer control system

引用

1st international conference on computer and computing technologies in agriculture (CCTA 2007)

作者： Huang, Wenqian Meng, Zhijun Chen, Liping Zhao, Chunjiang Room A516 Nongke BldgShuguang Garden Middle RdH Beijing 100097 Peoples R China Natl Engn Res ctr Informat Technol Agr Beijing Peoples R China

ISBN: (纸本)9780387772523

A novel control system for variable rate fertilizer application based on CAN bus is presented. The system consists of variable rate controller based on DSP, ground speed sampling unit and light-bar guidance unit. These units form a control area network based on CAN bus. The variable rate controller collects signals of GPS position and ground speed, and calculates the conveyor feed shaft rotate speed according to the prescription map stored in local memory. Then the variable rate application can be realized through PID control of the shaft rotate speed. Light-bar guidance unit helps the operator to steer the machine moving by equal spacing parallel passes for less overlap and missing in operation. The effectiveness of the developed system is confirmed by the experiments using the communication protocol special for the application based on CAN bus.

关键词： precision agriculture variable rate fertilizer CAN bus PID control DSP

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RESEARCH ON agriculture DOMAIN META-SEARCH ENGINE SYSTEM

RESEARCH ON AGRICULTURE DOMAIN META-SEARCH ENGINE SYSTEM

引用

The Second ifip international conference on computer and computing technologies in agriculture (CCTA2008)

作者： Nengfu Xie~* Wensheng Wang Agricultural Information Institute The Chinese Academy of Agricultural Sciences Beijing China 100081

The rapid growth of agriculture web information brings a fact that search engine can not return a satisfied result for users’ *** this paper,we propose an agriculture domain search engine sy

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