A control method for digital TV single frequency network adapter

Abstract

The invention discloses a control method for single frequency network adapters of a digital television. The method comprises the steps that 1, hardware is subjected to initialization setting, and an ARM (Advanced Reduced Instruction-Set Computer Machines) processor, an FPGA (Field Programmable Gate Array) chip and a CPLD (Complex Programmable Logic Device) chip are set;2, a host processing thread and a UDP (User Datagram Protocol) transmitting thread run in an ARM program, the host processing thread polls zone bits invoked by a remote method, and the UDP transmitting thread polls states of single frequency network adapter board cards; 3, a UDP receiving thread and a JavaScript invoking thread run in a Java program, and the UDP receiving thread is kept in a monitoring state;4, FPGA running parameters of the single frequency network adapters are initialized; and 5, a power-down memory in an EEPROM (Electrically Erasable Programmable Read-only Memory) is read.With the adoption of the control method for the single frequency network adapters of the digital television, effective control of reliable running of the hardware in the adapters can be realized, and remote control of a user on the adapters can be realized.

Description

technical field [0001] The invention relates to the field of digital TV signal transmission control, in particular to a control method for a digital TV single frequency network adapter. Background technique [0002] Single frequency network adapter is a digital TV front-end equipment developed with the popularization of terrestrial digital TV. The so-called single frequency network means that in a certain geographical area, several transmitters transmit the same wireless signal on the same frequency band at the same time, so as to achieve reliable coverage of the area. Since the networking of SFN has strong anti-interference ability and digital processing ability, and allows overlapping of coverage areas, this will greatly improve the cliff effect of the original coverage edge, improve coverage quality, and expand coverage. The network is the best way to expand the coverage of digital TV, and the product that ensures the synchronization of the single frequency network is th...

AI Technical Summary

Problems solved by technology

[0004] Regarding the network management method of the digital TV adapter device, the client software is mostly used in the market, that is, the common desktop application program, but this method has its limitations. First, the compatibility of different operating systems to the client software is different. Software that executes normally under the Windows operating system may not be well supported under the Linux operating system. In addition, Java and other languages ​​​​need additional support from virtual machines. These redundant operations are very unfriendly to customers.

Images