【作者】 祝贵军；

【导师】 汪同庆；

【作者基本信息】 重庆大学 ， 仪器仪表工程， 2003， 硕士

【摘要】 局用交换机计费系统(Billing System)是整个电信服务的一个重要环节，准确、可靠、安全的电话计费系统是国家电信资费政策得到落实的保证。长期以来，由于电信自然垄断环境，电信行业始终处于卖方市场，中国电信从市场方面感受到的压力很小，对于计费系统进行大规模投资建设和改造的紧迫感不强，而对计费系统进行大规模投入后，直接经济效益并不很明显。在这种形势下，计费系统严重滞后于网络建设，形成了对用户服务长期被动的局面，计费系统多计或少计费现象时有发生，由于计费不准引起的投诉已经成为当前投诉热点之一。如何保证计费系统的准确、可靠、安全已经成为国内外监督部门、行业主管部门、电信运营商和电信消费者共同关注的热点问题。 要解决这一问题，一是电信运营商必须对计费系统性能高度重视，加大计费系统的改造投入，二是技术监督部门和行业主管部门加强监督管理力度，尽快出台局用交换机计费系统检测规范。 目前，国内对交换机计费系统的检测尚属空白，美、英等发达国家也是在最近几年才开始着手研究制定相应的标准和检测方法，并且许多还尚在不断完善和改进之中。 本文在调查和分析国内外局用交换机计费系统工作原理、检测方法和相关标准的基础上，对计费系统的工作原理和产生计费错误的原因进行了详细的分析，提出了适合国情的能够客观评价计费系统计量性能的技术指标和检测方法，有些指标和检测方法在国内相关资料中属首次提出，如通话计时误差和时刻误差和对移动交换机计费系统的一些检测方法； 本文通过对电信基础业务和各类增值业务的计费方式、计费用户、计费点和计费方法的分析，利用国内外最新检测仪器、现代检测技术、通信技术和概率统计方法，提出了较科学、有效和利于实施的检测方法，并对检测结果的测量不确定度进行了分析。 本文所研究的检测方法可作为技术监督部门和行业主管部门加强监督管理，制定检测规范的参考，也可供电信运营商和消费者自查之用。更多还原

【Abstract】 The Billing System of local exchanger is an important link to the whole telecom service and the exact, reliable and safe telephone Billing System can put national telecom expense polity into effect. For a long time, because of the environment of telecom natural monopolized, telecom trade is always in the seller’s market, China Telecom feels little pressure from market and the sense of urgency of investment and recast to Billing System isn’t strong. Direct economic benefits also aren’t obvious after a large scale devotion to Billing System. Under this situation, Billing System is behind the network building seriously and it has been passive to the users’ service for a long time. Wronging calculate the fare often occurs which leads it become one of the appeal focus. How to solve this problem is cared by domestic and international superintendent office, trade director department, telecom operating traders and the users of telecom.The solution of this problem:First, telecom operating traders must take high attention to the capability of Billing System. After increasing input to change Billing System, second, the technological superintendent department and relevant industrial department should strengthen supervision and management and come on the standard measure of Billing System of local exchanger as soon as possible.At present, the measure of local exchanger’s Billing System isn’t used in China and also the developed countries such as America, England etc have began to study and make the relevant standard and measure method in recent several years, which are perfecting and improving constantly.In the base of investigating and analyzing to working theory, measure methods and relevant standard, the text processes particular analyses to the working theory of Billing System and reason of making billing wrong and puts forward technology index and measure method that can externally evaluate the capability of Billing System and is suit to the situation of our country. Some indexes and measure way are put forward for the first time (example error of call clock, time error and measure method to moving exchanger’s Billing System.)Through analyzing telecom charging way, charging users, charging point and charging methods of telecom basic and all kinds value-added operation and utilizing the newest measure apparatus, modern measure technology, communication technology andprobable method, this text puts more scientific, efficient and easily operated measure methods and process a uncertain analysis to measure methods.Measure methods studied in this text can be a reference to the technological superintendent department and trade operating department to strengthen supervision and management and make measure standard. It can be used for telecom operating traders and users to check too.更多还原