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In recent years, the smart city construction gradually becomes a major strategic move in cities at home and abroad, in order to solve a series of problems such as population energy and environment in city development. The smart city is a systematic project, of which the smart city construction assessment is the most important part. It has been few academical research studies with the smart city level...
As the power source of robot, the temperature characteristics of the lithium-ion battery directly affect the robot working performance. The thermal characteristics of lithium-ion battery have been intensively studied through both temperature rise tests and the discharging tests, and the PTC thermal management system of power battery was designed to enhance the performance of robot. Battery surface...
EPON(Ethernet Passive Optical Network) technology is a new kind of fiber optical broadband access network technology. The EPON system mainly includes OLT, ONU and ODN. It inherited the low cost of Ethernet and the high bandwidth of light network, so it has Broad prospects of application in the Residential electricity information collection field. Based on above, this paper combines the characteristics...
In this paper, a visualization management systems are designed based on RFID technology and Java EE web technology. This system includes hardware design and software design. The parts of hardware design could get the position of the tracking equipment with the RFID automatic identification technology which is used to achieve real-time collection of data so as to realize real-time, tracking and monitoring...
EPON (Ethernet Passive Optical Network) technology is a new kind of fiber optical broadband access network technology. The EPON system mainly includes OLT, ONU and ODN. It inherited the low cost of Ethernet and the high bandwidth of light network, so it has Broad prospects of application in the Residential electricity information collection field. Based on above, this paper combines the characteristics...
this paper introduces the concepts of RFID (Radio Frequency Identification) systems and analyses the key technologies about RFID systems, then researches the theory and algorithms of indoor location systems, especially LANDMARC system. In the end, this paper designs an indoor location system of equipment based on RFID technology.
To activate the battery and measure battery capacity, in the use and maintenance of Battery in power system, discharge experiments of the battery must be regularly carried out. On the basis of now's several analysis methods of sources inverter, Proposed out an improved active grid-connected inverter thyristors discharge method which based on Boost converter, and verified the work feasibility and performance...
Image mosaic is one of important technologies for image processing. It is normally used to make up a seamless and high resolution image. There are some algorithms that deal with the image mosaic. But the most make simply two or more images seamlessly form a large image for a holographic scenic display. The post-processing on the photo from a traffic accident scene is required to reflect and allow...
In order to solve the leak problem from water pipeline, the principle of water pipeline leak detection using acoustic theory is elaborated and the location algorithm is given. A leak detection technique combines wavelet transform and cross-correlation technique is the focus in this paper. The leak location algorithm using wavelet transform for noise reduction before using cross-correlation technique...
High precision OCXO based on SC cut overtone crystals can show very high frequency stability and aging. However, its frequency regulation range by voltage control is not wide. When high precision OCXO is used as the standard of precise controllable measuring instruments, especially the precision slave VCOCXO, in allusion to widen frequency comparison range, the precision OCXO should not only show...
We have researched, developed and applied a series of measuring and testing technologies in the mass production and exploitation of precision frequency control devices including OCXO, TCXO, VCXO, PLL and clock modules. They have shown a key function to the performance improvement and quality guarantee of the products. In this paper we shall present turn point regulation technology and equipment of...
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