Fault analysis device for real-time broadcasting of atsc TV programs

Abstract

The invention relates to an ATSC television program real-time playing fault analysis device which comprises a first signal quality detector, a second signal quality detector, a third signal quality detector and an alarm signal management device. The first signal quality detector is used for carrying out signal content and quality detection of a channel grade on received ATSC digital video broadcasting signals, the second signal quality detector is used for carrying out signal content and quality detection of a signal source grade on the received ATSC digital video broadcasting signals, the third signal quality detector is used for carrying out signal content and quality detection of a display grade on the received ATSC digital video broadcasting signals, the channel grade detection, the signal source grade detection and the display grade detection belong to signal content and quality detection, when abnormal situations of the ATSC digital video broadcasting signals happen, the first signal quality detector, the second signal quality detector and the third signal quality detector give out alarm signals, and the alarm signal management device is connected with the three signal quality detectors to receive the alarm signals and to display alarm content which corresponds to the alarm signals. According to the ATSC television program real-time playing fault analysis device, all-directional signal content detection can be carried out on the ATSC digital video broadcasting signals to be broadcasted by a television station, staff of the television station can be helped to carry out rapid location and removal of faults, and quality of the signals broadcasted by the television station side can be ensured.

Description

Technical field [0001] The invention relates to the field of program failure analysis, in particular to a real-time playback failure analysis device of ATSC TV programs. Background technique [0002] The ATSC standard is one of the two existing digital television transmission standards, and the other standard is the European digital video broadcasting DVB standard. The full English name of ATSC is AdvancedTelevisionSystemsCommittee (American Advanced Television Business Advisory Committee). The committee formally adopted the ATSC digital television national standard on September 15, 1995. ATSC system source coding adopts MPEG-2 video compression and AC-3 audio compression; channel coding adopts VSB modulation, providing two modes: terrestrial broadcasting mode (8VSB) and high data rate mode (16VSB). The ATSC standard is widely used, especially in countries and regions in North America. [0003] However, when there is a problem with the digital TV signal, it is not easy to quickl...

AI Technical Summary

Problems solved by technology

The existing ATSC TV program real-time playback fault analysis device has a simple structure and a single function, and often only installs a detection device on a certain link of signal transmission to intercept the code stream for analysis, and the analysis results obtained in this way are poor in reference

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