| 浮标气象站上的光伏供电系统设计 |
| |
| 引用本文： | 曹乃锋,陈世哲,刘世萱.浮标气象站上的光伏供电系统设计[J].山东科学,2010,23(2):79-82. |
| |
| 作者姓名： | 曹乃锋 陈世哲 刘世萱 |
| |
| 作者单位： | 1. 中国海洋大学工程学院，山东 青岛 266003；2. 山东省科学院海洋仪器仪表研究所，山东 青岛 266001 |
| |
| 基金项目： | 国家自然科学基金(51108289) |
| |
| 摘 要： | 给出了太阳能电池板对蓄电池充电环节的控制方案以及硬件电路的具体实现,其中,充电控制器是选用最基本、高可靠性的元器件自主设计而成,其内部不含有智能芯片和复杂集成电路,具有电路简单、性能稳定可靠、故障率低的特点,设计的稳压器利用开关稳压芯片作为核心元件,具有对蓄电池储能利用的高效性。同时,还对所设计电路进行了实际测试,测试结果表明本设计很好地实现了技术指标预定的功能。
|
| 关 键 词： | 充电控制 稳压器 蓄电池 电池板 |
| 收稿时间： | 2010-01-10 |
Dynamic pricing strategy of ride-hailing platforms |
| |
| CAO Ai-Feng,CHEN Shi-Zhe,LIU Shi-Xuan.Dynamic pricing strategy of ride-hailing platforms[J].Shandong Science,2010,23(2):79-82. |
| |
| Authors: | CAO Ai-Feng CHEN Shi-Zhe LIU Shi-Xuan |
| |
| Affiliation: | School of Railway Transportation, Soochow University, Suzhou 215131, China |
| |
| Abstract: | In reality, the ride-hailing market is characterized by randomness, and the static pricing strategy of the platform cannot adjust to instantaneous imbalances in the system between available driver supply and passenger demand. To this end, from the dual perspective of the government and ride-hailing platforms, the platform dynamic pricing strategy based on social welfare and profit maximization is studied in terms of the platform, drivers, and passengers. The queuing theory and the birth-death process are used to describe the flow process of drivers in ride-hailing platforms, and the social welfare maximization and platform profit maximization model under dynamic pricing is constructed by introducing the psychological expected price curve of passengers and drivers. The Brouwer fixed-point theorem is used to examine the existence of the model solution. Based on the sequential quadratic programming method, the algorithm is used to solve the model, and the platform pricing and driver profit-sharing to maximize social welfare and platform profit of the ride-hailing system are obtained and compared. Research shows that the established model not only calculates the optimal pricing strategy of the platform but also analyzes the impact of changes in basic parameters (average ride time, expected passenger/driver psychological price distribution, etc.) on the pricing strategy of the platforms. |
| |
| Keywords: | transportation economy dynamic pricing queuing theory ride-hailing social welfare |
| 本文献已被 CNKI 维普 万方数据 等数据库收录！ |
| 点击此处可从《山东科学》浏览原始摘要信息 |
|
点击此处可从《山东科学》下载全文 |
|
