中国推进售电侧市场化的制度设计与建议

回顾了中国电力体制改革的历史进程,剖析了当前形势下中国推进售电侧改革的困难所在,研究了售电侧改革在电力体制改革中的定位,揭示了售电侧改革对形成市场化交易机制、促进分布式能源发展和开展需求响应的重要意义。在此基础上,提出了中国稳步推进售电侧改革的制度设计与建议,其中包括采用管制化与市场化相结合的方式培育售电主体、采用互联网手段加强用户侧的培育、分类建立差异化的售电主体准入机制、采用市场机制激励售电商提供多样化的增值服务、建立公益性售电商应对托管状态下的用电需求、建立公平透明的售电监管和信息披露制度等。     

基于KEIL及PROTEUS的继电控制系统功能仿真与检测

继电器接触器的工作时间不尽相同,很有可能会引发竞争冒险现象,导致控制线路不能正常工作,由此介绍了一种实用的继电控制线路功能仿真与检测方法。用KEIL及PROTEUS软件建立了继电器模型,提出了继电器动作时四个不同的延时时间。根据一个现场实例建立了继电控制线路模型,提出了接近实际线路工作状况的算法。进行了功能仿真,证明利用所建立的模型可以仿真控制线路功能并检测到竞争冒险现象。该方法简单,效果明显直观,可用于基于继电器动作的电气控制回路动作性能分析。     

理论知识在技能大赛人才培养模式中的渗透实践

针对目前职业院校为了在技能大赛中取得优异的成绩更注重技能的培训,而忽略了实际操作赖以支撑的理论知识的学习,陷入"技能教育"误区,笔者结合多年技能大赛培训经验,通过将理论知识以"必需和够用"为原则渗透到技能培训中,使选手的技术和能力得到同步提升,是培养出具有一定专业理论知识的高素质技能型专门人才的有效途径。     

卫星通信组呼业务MAC层研究

组呼通信在指挥调度中有着重要作用,而在一些地面没有基站的地方,就无法正常使用。卫星通信具有无视地形,通信范围广,不易受陆地灾害影响,易于建设等优点。把卫星通信和组呼通信结合在一起的卫星组呼通信技术兼顾两者的优点,能更好的发挥指挥调度这一作用。当前卫星组呼通信采用固定频率方式,组呼成员在一个频率下进行通信,这种方式实用性不好。本文研究的是移动卫星组呼,在GMR-1系统的基础上研究了卫星组呼通信中MAC层的功能,提出了MAC-Ready-Gcc、MAC-Dedicated-Gcc这两个为了支持组呼的状态,并针对在MAC层发生的PTT竞争提出了一种回退策略。     

依托“技能竞赛和考试”提升机械制图创新教育

针对机械制图创新教育的改革需求,提出依托“技能竞赛和考试”促学、促教,一是促进学生主动“混合式学习”机械制图和参加科技创新活动;二是引导教师改革课程体系、课程内容、教材、教学模式和助学模式.结果表明,依托“技能竞赛和考试”促学、促教有利于提高学生学习效果、创新能力和实践技能,有利于培养高技能创新人才.     

基于有效路径统计网络的群组命令传输模型

Internet在动态环境及资源有限条件下,其尽力而为的服务模式在支持群组命令传输过程中,容易产生路径过期无效及路径竞争问题.对此,定义出有效路径统计网络,并提出基于有效路径统计网络的群组多约束多目标优化问题.针对该问题,提出基于有效路径统计网络的群组命令传输模型.为解决路径无效过期,该模型基于动态追逐解的思想提出基于动态环境下群体激励算法.为解决路径竞争,该模型分别从竞争选择策略以及避让选择策略两个角度分析了路径竞争问题.最后,本文分别证明模型的收敛性和有效性.实验分别从响应延迟率及传输成功率等方面,验证了该模型在支持群组命令传输的合理性.     

System for augmented human–robot interaction through mixed reality and robot training by non-experts in customer service environments

Human–robot interaction during general service tasks in home or retail environment has been proven challenging, partly because (1) robots lack high-level context-based cognition and (2) humans cannot intuit the perception state of robots as they can for other humans. To solve these two problems, we present a complete robot system that has been given the highest evaluation score at the Customer Interaction Task of the Future Convenience Store Challenge at the World Robot Summit 2018, which implements several key technologies: (1) a hierarchical spatial concepts formation for general robot task planning and (2) a mixed reality interface to enable users to intuitively visualize the current state of the robot perception and naturally interact with it. The results obtained during the competition indicate that the proposed system allows both non-expert operators and end users to achieve human–robot interactions in customer service environments. Furthermore, we describe a detailed scenario including employee operation and customer interaction which serves as a set of requirements for service robots and a road map for development. The system integration and task scenario described in this paper should be helpful for groups facing customer interaction challenges and looking for a successfully deployed base to build on.     

Price and lead time differentiation,capacity strategy and market competition

We study a duopoly market in which customers are heterogeneous, and can be segmented as price or time sensitive. Each firm tailors (differentiates) its products/services for the two customer classes solely based on guaranteed lead time and the corresponding price. Our objective is to understand how competition affects price and lead time differentiation of the firms in the presence of different operations strategy (shared versus dedicated capacity), product substitution and asymmetry between the competing firms. Our results suggest that when firms use dedicated resources to serve the two market segments, pure price competition always tends to decrease individual prices as well as price differentiation, irrespective of the market behaviour. Further, the effect of competition is more pronounced when customers are allowed to self-select, thereby introducing substitutability between the two product options. On the other hand, when firms compete in time, in addition to price, the effect of competition on product differentiation depends crucially on the behaviour of the market. Our results further suggest that the firm with a larger market base should always maintain a larger price and lead time differentiation between the two market segments. Similarly, the firm with a capacity cost advantage should also maintain a larger lead time differentiation.     

竞争市场下带消费者异质的质量信息披露管理

本文探究存在披露成本且消费者异质时竞争市场中卖者的披露决策及其均衡期望收益。作为基准,首先研究了单个卖者的垄断情形,结果显示披露成本的增加使卖者倾向于隐藏质量信息,而使卖者期望收益先减后增。然后考虑了两个卖者的竞争市场,得到最优决策并与垄断情况下进行了比较。结果显示与垄断情况不同,卖者收益随披露成本单调递减,且收益较低。     

Automatic negotiation: playing the domain instead of the opponent

An automated negotiator is an intelligent agent whose task is to reach the best possible agreement. We explore a novel approach to developing a negotiation strategy, a ‘domain-based approach’. Specifically, we use two domain parameters, reservation value and discount factor, to cluster the domain into different regions, in each of which we employ a heuristic strategy based on the notions of temporal flexibility and bargaining strength. Following the presentation of our cognitive and formal models, we show in an extensive experimental study that an agent based on that approach wins against the top agents of the automated negotiation competition of 2012 and 2013, and attained the second place in 2014.