Smartphone imaging spectrometer for egg/meat freshness monitoring

2022 ◽  
Author(s):  
Tianci Wang ◽  
Fuzhou Shen ◽  
Hancheng Deng ◽  
Fuhong Cai ◽  
Shufen Chen
Keyword(s):  
Communication Technology ◽  
Efficient Method ◽  
Data Transmission ◽  
Mobile Terminals ◽  
Imaging Spectrometer ◽  
Field Level ◽  
Level Monitoring

Data transmission between spectroscopy equipment and mobile terminals is critical to realising hand-held field-level monitoring. Currently, on-the-go (OTG) communication technology is a convenient and efficient method of data transmission for...

Classification of multitemporal Sentinel-2 data for field-level monitoring of rice cropping practices in Taiwan

2020 ◽  
Vol 65 (8) ◽  
pp. 1910-1921 ◽  
Author(s):  
Nguyen-Thanh Son ◽  
Chi-Farn Chen ◽  
Cheng-Ru Chen ◽  
Horng-Yuh Guo
Keyword(s):  
Field Level ◽  
Cropping Practices ◽  
Level Monitoring ◽  
Sentinel 2

scholarly journals A Data Transmission Strategy with Energy Minimization Based on Optimal Stopping Theory in Mobile Cloud Computing

2019 ◽  
Vol 2019 ◽  
pp. 1-11
Author(s):  
Xin Zheng ◽  
Yu Nan ◽  
Fangsu Wang ◽  
Ruiqing Song ◽  
Gang Zheng ◽  
...  
Keyword(s):  
Energy Efficiency ◽  
Cloud Computing ◽  
Optimal Stopping ◽  
Data Transmission ◽  
Mobile Cloud Computing ◽  
Rapid Development ◽  
Average Energy ◽  
Mobile Cloud ◽  
Mobile Terminals ◽  
Optimal Stopping Theory

Considering the widespread use of mobile devices and the increased performance requirements of mobile users, shifting the complex computing and storage requirements of mobile terminals to the cloud is an effective way to solve the limitation of mobile terminals, which has led to the rapid development of mobile cloud computing. How to reduce and balance the energy consumption of mobile terminals and clouds in data transmission, as well as improve energy efficiency and user experience, is one of the problems that green cloud computing needs to solve. This paper focuses on energy optimization in the data transmission process of mobile cloud computing. Considering that the data generation rate is variable, because of the instability of the wireless connection, combined with the transmission delay requirement, a strategy based on the optimal stopping theory to minimize the average transmission energy of the unit data is proposed. By constructing a data transmission queue model with multiple applications, an admission rule that is superior to the top candidates is proposed by using secretary problem of selecting candidates with the lowest average absolute ranking. Then, it is proved that the rule has the best candidate. Finally, experimental results show that the proposed optimization strategy has lower average energy per unit of data, higher energy efficiency, and better average scheduling period.

Research on Variable-Frequency-Point Variable-Bandwidth Wireless Broadband Radio Frequency Chip and its Application in the Smart Grid

2011 ◽  
Vol 347-353 ◽  
pp. 3107-3115
Author(s):  
Zi Guan Zhou ◽  
Xiao Shan Pan ◽  
Shu Gang Yin ◽  
Wei Li Ren ◽  
Sheng Bo Sun ◽  
...  
Keyword(s):  
Smart Grid ◽  
Power System ◽  
Radio Frequency ◽  
Communication Technology ◽  
Data Transmission ◽  
Narrow Band ◽  
Frequency Range ◽  
Broadband Radio ◽  
Wireless Broadband ◽  
Residential Electricity

With the development of the smart grid, residential electricity services have a higher bandwidth and frequency requirement to the power system communication , the existing power 230MHz narrow-band data transmission communication has been unable to meet the needs of the two-way interaction between the users and the smart grid. In terms of current communication technology in the power system, this paper introduces a wireless broadband radio frequency chip ,which supports 100MHz to 1.2GHz frequency range, and 5KHz to 2MHz tunable bandwidth.With the chip embedded in intelligent electricity interactive terminals, distribution monitoring terminals and other devices, it can achieve flexible and intelligent electricity services. This paper describes the architecture of the RF chip,and gives key technology solutions such as broadband matching, adjustable IF bandwidth of the channel, sums up the advantages of the chip,presents the application in the smart grid. The analysis finds that the chip has a variety of charateristics such as high integration, good redundancy, versatility, flexibility and so on, and can satisfy the growing application needs of power speacial network,and has an extremely promising market .

scholarly journals Approach of Improved Topology Development Protocol In Ad Hoc Network Minimizing The Number of Hops And Maintaining Connectivity of Mobile Terminals Which Move From One To The Others

2017 ◽  
Vol 1 (1) ◽  
Author(s):  
Lipur Sugiyanta
Keyword(s):  
Wireless Network ◽  
Data Transmission ◽  
Ad Hoc ◽  
Mesh Network ◽  
Maximum Throughput ◽  
Mobile Terminals ◽  
Average Delay ◽  
Routing Problem ◽  
Delay Performance ◽  
Network Metrics

Wireless ad-hoc mesh network is a special kind of network, where all of the nodes move in time. Node is intended to help relaying packets of neighboring nodes using multi-hop routing mechanism in order to solve problem of dead communication. Wireless mesh network which engages broadcasting and contains multiple hops become increasingly vulnerable to problems such as routing problem and rapid increasing of overhead packets. During this progress, the delay on account of multi hop characteristics and redundant packets caused by communication nature potentially existed during communication. Typically, delay will increase in linearity with number of hops. There is a certain minimum level of delay that will be experienced due to the time it takes to transmit a packet through a link. Topology development holds a significant point prior to the data transmission. Without improved topology development protocol, this problem can decrease network’s performance in overall data transmission. We analyze the delay performance of a multi-hop wireless network with a dynamic route between each source and final destination pair. There are fluctuate interference constraints on the set of links that impose a fundamental delay performance of any instant network topology. At first, we present a similar Link State Routing network simulation to derive such referential lower bounds. We conduct extensive simulation studies to suggest that the average delay of multi-hop transmission policy can be made lower compared to the referential bound by using appropriate functions of network metrics. This paper provides a broadcast framework that engages various network metrics and at the same time maintaining connectivity of nodes (mobile terminals). The framework captures the essential features of the wireless network metrics, i.e. bandwidth, throughput, network buffer, direction, and round trip time. This research is useful since, in many cases, it find that the throughput is the most important parameter in reduction of delay transmission. This result is confirmed with another composite simulation result. Most of network hop delay is impacted with this composite metric, particularly in delay minimization on the longer hops. The reduction achievement on average delay by this algorithm is 0.577% and the total average delay reduction for this simulated network is 0.683%. This research will be further designed primarily for achieving maximum throughput in the multiple wireless network area.

Design of Auto Ticket Selling System Based on Wireless Asynchronous Data Transmission

2013 ◽  
Vol 373-375 ◽  
pp. 1265-1268
Author(s):  
Yong Hui Yang ◽  
Zhi Gang Li ◽  
Li Dong Wang
Keyword(s):  
Communication Technology ◽  
Data Transmission ◽  
Large Scale ◽  
Information Management System ◽  
Data Encryption ◽  
Liaoning Province ◽  
Good Effect ◽  
Image Process ◽  
Process Technology ◽  
Database Technology

With the increasing numbers of passengers, it is very difficult for ticket selling work. In this paper, the design of auto ticket selling system is an information management system integrated by wireless asynchronous communication technology, video and image process technology, data encryption and large scale database technology. By using this system, the passengers can search the information and buy tickets automatically to reduce the passengers' waiting time. It has been applied to one passenger station in Liaoning province, and it has a good effect.

The Design of Data Transmission Device Base Public Network

2013 ◽  
Vol 380-384 ◽  
pp. 3934-3937
Author(s):  
Jian Long Huang ◽  
Zhong Feng Wang ◽  
Li Gang Li ◽  
Ying Nan Wang ◽  
Wei Chun Ge
Keyword(s):  
Communication Technology ◽  
Mobile Communication ◽  
Data Transmission ◽  
Rapid Development ◽  
Base Station ◽  
Large Area ◽  
Public Network ◽  
The Public ◽  
Technology Applications ◽  
Mobile Communication Technology

Based on the rapid development of communication technology and a large area of the base station of the public network being laid, which prompting the data transmission device development that base on the GPRS wireless network. This paper describes the hardware design of a data transmission device which based on GPRS mobile communication technology. Extended remote data transmission via GPRS mobile communication technology applications, and has broad application prospects.

Design of the Monitoring System for Endless-Rope Continuous Winch

2013 ◽  
Vol 380-384 ◽  
pp. 1023-1028
Author(s):  
Xiao Teng Zeng
Keyword(s):  
Wireless Communication ◽  
Monitoring System ◽  
Communication Technology ◽  
Data Transmission ◽  
Timely Manner ◽  
Rail Vehicles ◽  
Current Transducer ◽  
And Control ◽  
Eddy Current Transducer ◽  
Made In

A set of monitoring system is designed aiming at preventing the derailment of the Rail vehicles. The system uses the eddy-current transducer to monitor whether the carriage is in orbit. Zigbee wireless communication technology is used for data transmission. PLC and host computer are used for data processing and display of the system status. Derailment alarm and control interlock will be made in a timely manner to effectively prevent the occurrence of the carriage derailment.

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