A MANET is an autonomous infrastructure's network system of mobile hosts which are connected with each other via wireless links. The traditional routing protocol for wireless MANET is unable to achieve balanced en...
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According to the bedridden patient＇s physical condition, one kind of electric nursing bed which can be used in the smart home environment and realize many＇ kinds of posture transformation. This paper introduces the ...
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According to the bedridden patient＇s physical condition, one kind of electric nursing bed which can be used in the smart home environment and realize many＇ kinds of posture transformation. This paper introduces the mechanical system design of the electric nursing bed and the method of integration with the smart home environment, designs the combined bed board and the mechanical structure of posture transformation, remote controlling equipments in the smart home environment.
We propose a continuous-variable measurement-device-independent quantum key distribution (CV-MDI QKD) protocol, in which detection is conducted by an untrusted third party. Our protocol can defend all detector side ch...
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We propose a continuous-variable measurement-device-independent quantum key distribution (CV-MDI QKD) protocol, in which detection is conducted by an untrusted third party. Our protocol can defend all detector side channels, which seriously threaten the security of a practical CV QKD system. Its security analysis against arbitrary collective attacks is derived based on the fact that the entanglement-based scheme of CV-MDI QKD is equivalent to the conventional CV QKD with coherent states and heterodyne detection. We find that the maximal total transmission distance is achieved by setting the untrusted third party close to one of the legitimate users. Furthermore, an alternate detection scheme, a special application of CV-MDI QKD, is proposed to enhance the security of the standard CV QKD system.
The paper studied the rail length measurement method, analyzed the sound waves attenuation in rails. The sound wave attenuated severely after traveling through the rail, so adopted the signal correlation principle of ...
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The paper studied the rail length measurement method, analyzed the sound waves attenuation in rails. The sound wave attenuated severely after traveling through the rail, so adopted the signal correlation principle of the lock-in amplifier to detect weak signal. Then completed the circuit design such as the acoustic emission circuit, the preamplifier circuit, the signal operation circuit of the digital lock-in amplifier and so on. The lock-in amplifier did correlation operation between the signals and completed the reference signal phase shift function by DSP and at last, detected the weak signals in noises.
In this paper, the method of designing a programmable filter using FPGA was suggested. Due to its high efficiency and performance, FPGA chip was used control MF10 chip. The results showed high accuracies in filtering....
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ISBN:
(纸本)9781629939919
In this paper, the method of designing a programmable filter using FPGA was suggested. Due to its high efficiency and performance, FPGA chip was used control MF10 chip. The results showed high accuracies in filtering. The amplification of input signals, the filtering types and the -3dB frequency of filter were adjusted and controlled by the keys. The project accomplished the objective to improve the abilities of college students to analyze and solve problems independently.
This paper focused on the vehicle control strategy for electric variable transmission in hybrid electric vehicle. The operation modes of hybrid electric vehicle based on electric variable transmission were analyzed, a...
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ISBN:
(纸本)9781479914456
This paper focused on the vehicle control strategy for electric variable transmission in hybrid electric vehicle. The operation modes of hybrid electric vehicle based on electric variable transmission were analyzed, and the vehicle control strategy based on the logic thresholds was proposed, according to the power requirement, current vehicle speed, and SOC of battery. Then, the simulation model of hybrid electric vehicle based on electric variable transmission was built, and the simulation results demonstrate the feasibility of the proposed strategy.
The basses of the intelligent measurement and control system used in underground stereo garage at the downtown business district were investigated. Firstly, the principal constituents for vehicle storage and the intel...
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The basses of the intelligent measurement and control system used in underground stereo garage at the downtown business district were investigated. Firstly, the principal constituents for vehicle storage and the intelligent supervision systems were explored, the scheme involves the warehousing guidance, access mode and transmission system. Secondly, the modules of overrun detection and the parking place detection in the vehicle guidance system were successfully designed. Thirdly, three-dimensional information of the storage vehicle (i.e., length, width and height) and the position of the vehicle was collected by employing semiconductor lasers and peripheral circuits. STC89C52 Single-chip Microcomputer was adopted to improve the signal acquisition and control the voice prompt and light guide information and their output. Based on this information, the coding, debugging and testing of the control program were completed. The research of the parking vehicle storage intelligent guidance control at the downtown business district reduced the garage control cost, to a certain extent, and improved the cost-effective, which has an important significance for popularization and application of stereo garage.
The rapid development of the petrochemical industry and the increasing demand of energy require the loading process of liquid fuel more efficient, automatic and environmental friendly. The quantitative loading system ...
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The power frequency in 50Hz and its harmonic interference is one of the main noise sources during the acquisition process of surface electromyogram signals (SEMG), how to restrain interference power frequency and its ...
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The rapid development of the petrochemical industry and the increasing demand of energy require the loading process of liquid fuel more efficient, automatic and environmental friendly. The quantitative loading system ...
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The rapid development of the petrochemical industry and the increasing demand of energy require the loading process of liquid fuel more efficient, automatic and environmental friendly. The quantitative loading system includes computer control, instrument automation, network technology, and communication technique. The aim of crane tube loading system is to achieve automatic quantification of the monitor and control. ARM9-based automatic loading system is introduced in this paper, which can meet the requirement of large flow rapidly quantitative loading using quantitative loading control device. The device can improve the efficiency of oil production and economic benefits, reduce the labor intensity and has great significance in the aspect of market competitiveness.
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