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Monitoring device for digital television transmitter

A monitoring device and digital TV technology, applied to color TV parts, TV system parts, TVs, etc., can solve problems such as immediate response to emergencies, difficulty in function expansion, and inability to be dealt with. Achieve the effects of rich memory resources and interface resources, improved work stability, and improved performance

Inactive Publication Date: 2011-05-11
BEIJING TONGFANG GIGAMEGA TECH
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The Achilles heel of 51+485 lies in its low operating speed, limited resources, difficulty in function expansion, and inability to respond immediately to emergencies. When an abnormality occurs in a certain functional unit inside the transmitter, it may not be processed for a long time. until the part breaks

Method used

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  • Monitoring device for digital television transmitter
  • Monitoring device for digital television transmitter
  • Monitoring device for digital television transmitter

Examples

Experimental program
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Effect test

Embodiment Construction

[0017] see figure 1 , the present invention includes:

[0018] The main control unit, which is connected with the LCD touch screen and the CAN bus, is the control center of the entire monitoring device. Responsible for system initialization, collecting data of each unit through the CAN bus, issuing commands to each unit, establishing communication with the outside, and providing a friendly man-machine interface. The main control unit includes: Ethernet interface, UBS interface, JTAG interface, RS232 interface, RS485 interface and IIC interface. The main control unit uses an embedded ARM Linux network operating system based on the 2.6 kernel; the main control unit has a built-in BOA embedded web server and a simple network management protocol agent SNMP agent.

[0019] The exciter monitoring unit includes a main exciter monitoring unit and a backup exciter monitoring unit respectively connected to the CAN bus. The exciter monitoring unit is responsible for monitoring the wor...

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PUM

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Abstract

The invention discloses a monitoring device for a digital television transmitter, relating to the technical field of digital televisions. The monitoring device comprises a main control unit, an exciter monitoring unit, a power amplification unit and a power supply monitoring unit, wherein the main control unit is connected with an LCD (Liquid Crystal Display) touch screen and a CAN (Controller Area Network) bus mutually, and is a control center of the whole monitoring device; the exciter monitoring unit comprises a main exciter monitoring unit and a spare exciter monitoring unit which are respectively connected with the CAN bus mutually; the power amplification unit comprises a plurality of power amplification monitors which are respectively connected with the CAN bus mutually; and the power supply monitoring unit comprises a plurality of power supply monitors which are respectively connected with the CAN bus mutually. Compared with the prior art, the monitoring device can respond to emergencies in the system rapidly, is fast in data acquisition and data processing and effectively guarantees stable and reliable work of the system.

Description

technical field [0001] The invention relates to the technical field of digital television, in particular to a monitoring device for a digital television transmitter based on CAN bus technology and an ARM embedded system. Background technique [0002] Digital TV uses very different technologies from traditional analog TV. It is mainly manifested in the difference in video signal processing and modulation technology, which leads to great differences in manufacturing technology between digital TV transmitter and analog TV transmitter. Just take the output power of the transmitter as an example: under the same power level, the output power of the digital TV transmitter is several times higher than that of the analog TV transmitter, and the power consumption of the digital TV transmitter It is also much higher than that of an analog TV transmitter. Similarly, as the number of power amplifying units increases, the number of power supply modules for power supply also increases ac...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04N5/38H04L29/08
Inventor 赵晓庆杨敏
Owner BEIJING TONGFANG GIGAMEGA TECH
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