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Locating Global System for Mobile Communication(GSM)Base Stations Using Geographic Information System(GIS)
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作者 Bamidele Moses Kuboye Victor Gbenga Abiodun 《Journal of Geographical Research》 2023年第4期1-10,共10页
The global system for mobile communication(GSM)is planned to meet the needs of the whole subscribers.The number of subscribers increased as the population increased due to the acceptance of GSM services by the subscri... The global system for mobile communication(GSM)is planned to meet the needs of the whole subscribers.The number of subscribers increased as the population increased due to the acceptance of GSM services by the subscribers.Thus,there should be a way to monitor base stations that will meet the increasing demand of subscribers in any area as a population surge will lead to more subscriptions.This will allow GSM network operators to serve their subscribers better and ease network congestion.This work presents a review of mobile evolution from the first generation to the fifth generation.A review of global positioning system(GPS)technology and its applications to geographic information systems(GIS)was done.The coordinates of these base stations were taken using a GPS device.These base station coordinates were then exported to QGIS for the design of the map.Thereafter,the output map was then integrated into the website.The discussions on the results followed and some useful suggestions given will go a long way to help the operators of GSM in Nigeria and in general.If the propositions given are adhered to,it will go a long way to help the operators reduce congestion on their network and thereby increase the satisfaction of the subscribers. 展开更多
关键词 Global system for mobile communication(gsm) Global positioning system(GPS) Geographic information system(GIS) Subscriber MAP IMAGES
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A Remote Temperature Monitoring System Based on GSM 被引量:1
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作者 Yong-ming LI,Yin-jing GUO,Yuan Zhao,Ji-fen Zhang (College of Information and Electrical Engineering,Shandong University of Science and Technology,Qingdao 266510,China) 《Journal of Measurement Science and Instrumentation》 CAS 2010年第S1期34-37,共4页
This paper has discussed the home and abroad’s current situation of temperature monitoring system and compared the advantages and disadvantages of several common methods.According to cold storage,container, medicines... This paper has discussed the home and abroad’s current situation of temperature monitoring system and compared the advantages and disadvantages of several common methods.According to cold storage,container, medicines library and greenhouse’s requirements on temperature,this thesis has analyzed the advantages and significance of the system and elaborated each module’s function and implementation based on hardware and software’s introduction and demonstrated the pictures of its practical application and the alarm information saved in the SD card which extracted from the database. 展开更多
关键词 DS18B20 gsm(Global System for Mobile communications) SD card DATABASE
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Modeling the growth and policy implications of Global System for Mobile Telecommunication (GSM) in Nigeria
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作者 Bakare Adewale Stephen 《Chinese Business Review》 2010年第10期33-40,共8页
This paper investigated the growth and policy implications of Global System for Mobile Communication in Nigeria. Stochastic economic modeling was used to analyze Nigeria's time series data. The models were adjudged r... This paper investigated the growth and policy implications of Global System for Mobile Communication in Nigeria. Stochastic economic modeling was used to analyze Nigeria's time series data. The models were adjudged reliable before they were used. The components of the model were defined and a prior expectation of the relationship among the variables explained for the purpose of giving the reviewers and users a deep insight into the phenomenon under study. The secondary data used for the study were processed using the E-View for windows electronic packages. The outcome of the empirical and stochastic investigations shows that Global System for Mobile Communication has a positive relationship with output growth in Nigeria. The impact is of a higher magnitude. The usage of Global System for Mobile Telecommunication led to 17 percent rise in the output growth. The findings suggest the need for the Nigerian Communication Commission (NCC) and the federal government of Nigeria to expand tele-density and directly make telephone communications cheap and accessible. To achieve this goal, more licenses should be given to GSM operators in order to allow for healthy competition among them. This will lead to improved quality of services, quality of product and consequently sustain the growth and development of the country. 展开更多
关键词 Global System for Mobile Communication gsm tele-density economic growth DEREGULATION
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Performance of a 60 F carbon nanotubes-based supercapacitor for hybrid power sources 被引量:3
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作者 XiaofengWang DianboRuan +2 位作者 ZhengYou YiqiangLu QiqianSha 《Journal of University of Science and Technology Beijing》 CSCD 2005年第3期267-273,共7页
A supercapacitor based on charge storage at the interface between a high surface area carbon nanotube electrode and a Li-ClO4/PC electrolyte was assembled. The performance of the capacitor depends on not only the mate... A supercapacitor based on charge storage at the interface between a high surface area carbon nanotube electrode and a Li-ClO4/PC electrolyte was assembled. The performance of the capacitor depends on not only the material used in the cell but also the construction of the cell. From a constant charge-discharge test, the capacitance of 60 F was obtained. The performance of the power capacitor for pulse power sources was described. The specific energy (0.8 W·h·kg-1) and the specific power (0.75 kW·kg-1) of the power supercapacitor were demonstrated with a cell of the maximum operating voltage of 2.5 V. A hybrid power source consisting of a lithium ionic battery and the 60 F supercapacitor was demonstrated to power successfully a simulated power load encountered in GSM portable communication equipment. The addition of the supercapacitor to the power train of a cellular phone results in significantly more energy from the battery being used by the load. The experiments indicate that more than 33.8% energy is utilized by load and less stored energy is dissipated within the battery for each charge-discharge cycle. 展开更多
关键词 carbon nanotubes SUPERCAPACITOR lithium-ion battery gsm portable communication
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Wireless sensing system for environmental humidity and temperature monitoring
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作者 袁耀东 张爱军 《Journal of Measurement Science and Instrumentation》 CAS 2013年第3期267-271,共5页
Aiming at the actual demand for monitoring environmental information,a wireless sensing system for temperature and relative humidity(RH)monitoring based on radio frequency(RF)technology and mobile network was designed... Aiming at the actual demand for monitoring environmental information,a wireless sensing system for temperature and relative humidity(RH)monitoring based on radio frequency(RF)technology and mobile network was designed.This paper introduces the architecture of the system.The system uses AVR micro controller unit(MCU),KYL-1020U RF module and SHT71 to complete real-time temperature and humidity monitoring,and uses SIM900A module to realize remote alarming and monitoring with short message system(SMS)through global system for mobile communication(GSM).Experimental results show that the designed system has good stability of measurement and real-time performance,and it can be used in some small temperature and humidity monitoring occasions. 展开更多
关键词 environmental monitoring temperature and humidity radio frequency (RF) technology wireless transmission global system for mobile communication gsm)CLC number:TP274 Document code:AArticle ID:1674-8042(2013)03-0267-05
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