智慧图书馆建设背景下的文献无感借阅服务应用研究——以重庆图书馆开放式无感智慧借阅系统实践为例

无感借阅技术在图书借阅环节的应用,使公共图书馆具备了在读者无感知状态下为其提供文献借阅服务的能力。目前,我国已有个别公共图书馆率先研发并开通了无感借阅服务,但从实现方式、识别率、方便程度上与“真”无感借阅尚有较大差距。文章以重庆图书馆研发、投用开放式无感智慧借阅系统为例,研究、探讨开放式无感借阅技术应用于图书借阅服务环节的技术架构、实现路径,以及在此过程中的关键问题、实施成本。通过开放式无感智慧借阅系统的实践及完善,最终形成运行稳定、低成本、可复用的智慧图书馆应用,为行业应用无感借阅提供范例。

面向服务器无感计算的模型推理服务切换方法研究

模型推理服务正随着大模型技术的发展被广泛应用,为模型推理服务构建稳定可靠的体系结构支撑逐渐成为云服务商关注的焦点。服务器无感计算是一种资源粒度细、抽象程度高的云服务计算范式,具有按需计费、弹性扩展等优势,能够有效提高模型推理服务的计算效率。但是,模型推理服务工作流呈现出多阶段的特点,独立的服务器无感计算框架难以确保模型推理服务工作流各阶段的最优执行。因此,如何利用不同服务器无感计算框架的性能特征,实现模型推理服务工作流各阶段的在线切换,缩短整体工作流的执行时间,是亟待解决的关键问题。讨论模型推理服务在不同服务器无感计算框架上的切换问题。首先,使用预训练模型构建模型推理服务函数,得出异构服务器无感计算框架的性能特征;其次,采用机器学习技术构建二分类模型,结合异构服务器无感计算框架的性能特征,实现模型推理服务在线切换框架原型;最后,搭建测试平台,生成模型推理服务工作流,完成在线切换框架原型的性能评估。初步实验结果表明,在线切换框架原型与独立的服务器无感计算框架相比,最大可缩短模型推理服务工作流57%的执行时间。

异构巨型星座开放式敏捷架构设计

巨型星座的异构化是市场牵引、任务驱动未来天基系统的大趋势,如何发展好、用好、管理好异构巨型星座是行业内持续探讨的热点。针对异构巨型星座在体系设计、协同组网、灵活应用和系统运行等方面的问题,瞄准“动态协同、高品质服务、无感使用、易于管控”等需求目标,本文提出“联接、感知、智算、传输、研训、管控、应用”七位一体的异构巨型星座体系构建思路,应用开放式设计理念,实现快速、灵活、自主的星座资源整合与调度,支持模块化、可伸缩的多业务、多应用的按需服务。

Intelligent emergency service system based on wireless sensor and actuator networks

An intelligent emergency service（ IES） system is designed for indoor environments based on a wireless sensor and actuator network（ WSAN） composed of a gateway, sensor nodes, and a multi-robot system（ MRS）. If the MRS receives accident alarm information, the group of robots will navigate to the accident sites and provide corresponding emergency services.According to the characteristics of the MRS, a distributed consensus formation protocol is designed, which can assure that the multiple robots arrive at the accident site in a specified formation. The prototype emergency service system was designed and implemented, and some relevant simulations and experiments were carried out. The results showthat the MRS can successfully provide emergency lighting and failure node replacement services when accidents happen. The effectiveness of the algorithm and the feasibility of the system are verified.

Simplified Echo-State-Network Based Services Awareness for High-Speed Passive Optical Network

With the challenge from services diversity grows greatly,the service-oriented supporting ability is required to current high-speed passive optical network(PON) .Aimed to enhance the quality of service(Qo S) brought by diversified-services,this paper proposes an Simplified Echo State Network(SESN) Based Services Awareness scheme in High-Speed PON(Passive Optical Network) .In this proposed scheme,the ring topology is adopted in the reservoir of SESN to reduce the complexity of original Echo State Network,and system dynamics equation is introduced to keep the accuracy of SESN.According to the network architecture of 10G-EPON,a SESN Master is running in the OLT and a number of SESN Agents work in ONUs.The SESN Master plays the main function of service-awareness from the total view of various kinds services in 10G-EPON system,by fully SESN training.Then,the reservoir information of well-trained SESN in OLT will be broadcasted to all ONUs and those SESN Agents working in ONUs are allowed to conducts independent service-awareness function.Thus,resources allocation and transport policy are both determined just only in ONUs.Simulation results show that the proposed mechanism is able to better supporting ability for multiple services.

Wireless location technology and its application

Wireless location technology is used to locate,track and monitor the location of given target using devices such as the radio frequency identification(RFID) based on WiFi technology and the sensors. And such applications as long term evolution(LTE) ,wireless local area networks(WLAN) ,RFID and location based service(LBS) are essential in today's wireless communications industry. In this paper,both wireless location technology and its application are proposed,where our experimental research results and theoretical innovation are included.

A Routing Optimization Algorithm with Quality of Multi- Service in Wireless Sensor Network

According to the problem of energy consumption in wireless sensor network （WSN）,this paper puts forward a routing optimization algorithm with quality of multi-service, using the function of routing optimization with quality of multi-service and membership function of satisfaction, which integrates the energy consumption of communication and residual and the information of time delay into the membership function of satisfaction to solve the equilibrium factor, so that it can become the optimal routing that balances the network lifetime, transmission delay of data, and node energy consumption of nodes. Simulation experiment shows that adopting the algorithm can make lifecycle of nodes longer and network transmit more data packets at the same time. Experimental results verify the algorithm can effectively balance the network energy, reduce the energy consumption and prolong the network lifetime.

基于无线传感器网络定位技术的图书馆智能管理创新

"互联网+"时代,信息技术的发展对图书馆的智能化管理工作提出了更高的要求。文章概述了无线传感器网络与定位技术,重点讨论了如何将WSN定位技术运用到图书智能管理,通过定位技术与大数据、云计算等信息技术的结合,推动图书馆智能系统建设和智能化发展。