为了实现烟支剔除的自动化程度,减少人为干预量和提高剔除精度,文中给出了采用FPGA硬件编程方法将数据采集部件采集到的烟支数据经A/D转换后送入FPGA,然后根据一定的判决算法输出控制信号,以用于控制剔除阀动作,同时将数据通过计算机串口读入上位机,以此实现机械剔除控制和显示实现方法。

Existing Peer-to-Peer storage network can not guarantee confidentiality and security of the clients' files on the distrusted nodes,and only uses the low efficiency way of redundancy copies to ensure the availability of their documents.Aiming at this problem,this paper proposes a new kind of architecture of peer-to-peer storage network which can meet different clients' needs.It proposes the system according to the defects of the existing Peer-to-Peer storage network system.Results of analysis shows that the system can meet the different needs of occasions,and ensure the survivability of storage networks effectively.

In order to enhance the efficiency of data access and resolve the problems of existing quorum systems,such as no differerce between the nodes,great latency in data access and low storage utilization,this paper presented a new quorum sys- tem based on privileges classification of all nodes. The system adjusted each quorum dynamically by means of the usage of proxy. Besides,divided the nodes of the system into different grades according to data storage time,and designed the corre- sponding data read and write protocols. As a conclusion of the system performance analysis,it shows that the scheme has the advantages of high data access efficiency,storage reliability,flex to be extended and so on.

In view of some protocols in the network environment can not achieve fairness and confidentiality completely in the fair electronic contract signing.This paper proposes a new concurrent signature in virtue of ElGamal digital signature and applies to a fair contract signing protocol.This protocol ensure the confidentiality of the contents of the contract without the third party involved and ensure the fairness of contract signing in virtue of fuzzy signatures concurrent.And it can be applied to most electronic contract signing in network environment.

Video compression part of AVS(Audio Video Coding Standard) was mainly studied and key technologies of code process were given.The bottleneck affecting decoding speed of AVS decoder was pointed out with VTune testing tools and an optimization scheme was given.The software decoder was optimized starting from data flow and program structure optimization in combination of rewriting bottleneck module in SIMD instructions.The optimization method of motion compensation and inverse transform were also given.The results of experiment show the scheme is available and the speed of the decoder is highly improved.