Research on Audience Rating Statistics of Two-way Digital TV Based on OpenSSL

The drawback of the present various forms of digital program audience statistical method is that only the traditional phone questionnaire survey, the diary method or the artificial equipment is applied to counting the situation of watching program. By means of combining the timely recognized operation property of various digital terminals and automatic return viewing program feature, a new scheme is proposed to count audience situation for program in two-way digital television network. The main technologies and functions of the scheme are described by introducing audience information gathering mechanisms, security return protocol stack based on openSSL, fusion and automatic transmission and its appropriate statistical methods. Meanwhile, the development of the audience rating statistical system is provided, which is used by some program providers according to this scheme. The experiment and users’ feedback show that this scheme in the lower hardware configuration digital terminals can promptly and accurately count the subscribers watching program and effectively protect audience view information.