１引言随着有线电视事业的发展，有线电视网络的规模和覆盖面越来越大，入网用户越来越多，节目也更加丰富多彩。同时，也使有线电视系统的维护、改造、节目制作等费用逐渐加大，运营成本上升，用户管理和收费难的问题比较突出。就目前有线电视网络和用户电视机的状况来看... 1 Introduction With the development of the cable television industry, the scale and coverage of cable television networks are increasing, more and more network users, programs are more colorful. At the same time, the costs of maintaining, revamping and programming of the cable television system have also been gradually increased, the operating costs have risen, and the problems of user management and charging difficulties have become more prominent. On the current status of cable networks and user television ...