CN203912107U - Digital television exciter monitoring system - Google Patents
Digital television exciter monitoring system Download PDFInfo
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- CN203912107U CN203912107U CN201420197195.9U CN201420197195U CN203912107U CN 203912107 U CN203912107 U CN 203912107U CN 201420197195 U CN201420197195 U CN 201420197195U CN 203912107 U CN203912107 U CN 203912107U
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Abstract
The utility model discloses a digital television exciter monitoring system for controlling a digital television exciter. The digital television exciter comprises an FPGA and a radio frequency circuit. The digital television exciter monitoring system is characterized in that: the digital television exciter monitoring system comprises the components of: a control chip, a digital television exciter centralized controller which communicates with the control chip through a 422 interface, and a liquid crystal display control panel which is connected with the control chip through a liquid crystal interface; wherein the control chip is an LM3S control chip; the control chip is connected with the digital television exciter through a control interface; the control interface comprises a digital processing control interface and a radio frequency control interface; the radio frequency control interface is connected with the radio frequency circuit part of the digital television exciter; the digital processing control interface is connected with the FPGA of the digital television exciter; the digital processing control interface is an SPI interface; the LM3S control chip is used for using Ethernet for communication through the RJ45 interface, thereby realizing a WEB function; and the LM3S control chip is also used for controlling the FPGA for realizing remote unified control for the digital television exciter and controlling the radio frequency circuit through the digital processing control interface according to a signal which is transmitted by the digital television exciter centralized controller, the liquid crystal display control panel or a network. A relatively better digital television exciter monitoring system architecture is realized. Because the architecture is simple and convenient, the architecture realizes the functions of: improving system stability, facilitating production and debugging, and realizing abundant functions. A WEB server is integrated in a multi-task system of a single-chip microcomputer and a hardware threshold for configuring the WEB server is greatly reduced.
Description
Technical field
The utility model relates to a kind of DVB-T Transmitter supervisory control system.
Background technology
Along with the develop rapidly of computer technology, mechanics of communication, whole world radio and television are just starting the heat wave of one Digital Television application.In Digital Television Terrestrial Broadcasting, novel digital TV transmitter is vital, and DVB-T Transmitter (EXCITER) is link the most key in digital TV transmitter.The supervisory control system of DVB-T Transmitter provides Man Machine Interface for engineering maintenance personnel, the functions such as system state monitoring, and how supervisory control system meets is enriched at present DVB-T Transmitter functional requirement and also all receives the concern of industry always.
Along with the development of present DVB-T Transmitter, in order to facilitate project installation personnel debugging and assembly network flexibly, the supervisory control system of DVB-T Transmitter also grow up thereupon and function increasingly abundant.The supervisory control system of DVB-T Transmitter is used power pc and arm operation vxworks or the so comparatively complicated operating system of Linux mostly at present, and such scheme can provide abundant interface and man-machine interface.But the cost of such supervisory control system self hardware is higher and make development cost and later maintenance cost all relatively high because system hardware and software complexity promotes.Certainly also there are on the market indivedual DVB-T Transmitters to use 8 single-chip microcomputers as supervisory control system, such scheme interface single (general easy configuration the unique method of character mode lcd as man-machine interaction), function simply cannot meet the convenience of the functional and man-machine interface of at present growing DVB-T Transmitter.
Utility model content
For addressing the above problem, the technical scheme that the utility model adopts is:
A kind of DVB-T Transmitter supervisory control system is provided, for control figure TV exciter, described DVB-T Transmitter comprises FPGA and radio circuit, described DVB-T Transmitter supervisory control system comprises control chip, passes through 422 interfaces and the DVB-T Transmitter Centralized Controller of control chip communication, the liquid crystal display control panel being connected with control chip by liquid crystal interface, wherein, described control chip is LM3S control chip; Described control chip is connected with DVB-T Transmitter by control interface, described control interface comprises digital processing control interface and radio frequency control interface, described radio frequency control interface is partly connected with the radio circuit of DVB-T Transmitter, described digital processing control interface is connected with the FPGA of DVB-T Transmitter, and described digital processing control interface is specially SPI interface; Described LM3S control chip is for using ethernet communication by RJ45 interface, to realize WEB function; Described LM3S control chip is the signal for sending according to DVB-T Transmitter Centralized Controller, liquid crystal display chain of command or network also, by digital processing control interface, control described FPGA and realize long-range unified control figure TV exciter, and control described radio circuit.
Wherein, described liquid crystal display control panel comprises LCDs and 6 independent buttons of character type parallel interface, and wherein, independent button comprises 4 directionkeys, 1 esc key and 1 ENTER key.
Wherein, described control chip also comprises system mode detection module, and described system mode detection module is used for the state of system and monitoring performance, and state and performance information are reacted to LCDs or are reacted to the WEB page by Ethernet.
Wherein, described radiofrequency signal control module comprises the output frequency adjustment unit of radio-frequency (RF) switch unit, adjustment output frequency, the power output setting unit of adjustment power output.Wherein, DVB-T Transmitter radio circuit is partly that independent power supply is controlled, and described radio-frequency (RF) switch unit is for cutting off and opening radio-frequency power supply to realize radio-frequency (RF) switch.
DVB-T Transmitter supervisory control system of the present utility model has following technique effect: 1, realized a good DVB-T Transmitter supervisory control system framework, but this framework due to its simple light increased the stability of a system and be easy to produce debugging do not lose that it is abundant functional; 2,, at the integrated WEB server of single-chip microcomputer multitask system, greatly reduce the hardware threshold of configuration WEB server.
Accompanying drawing explanation
Fig. 1 is the hardware block diagram of DVB-T Transmitter supervisory control system in the utility model one execution mode;
Fig. 2 is DVB-T Transmitter liquid crystal display control panel schematic diagram;
Main element symbol description
Control interface 220
LM3S control chip 210
Digital processing control interface 221
Radio frequency control interface 222
LCDs 231
Button 232
Embodiment
By describing technology contents of the present utility model, structural feature in detail, being realized object and effect, below in conjunction with execution mode and coordinate accompanying drawing to be explained in detail.
Referring to Fig. 1, is the hardware block diagram of this utility model DVB-T Transmitter supervisory control system.Described DVB-T Transmitter supervisory control system is for control figure TV exciter, and described DVB-T Transmitter comprises FPGA and radio circuit,
Described DVB-T Transmitter supervisory control system comprises control chip, passes through 422 interfaces and the DVB-T Transmitter Centralized Controller of control chip communication, the liquid crystal display control panel being connected with control chip by liquid crystal interface, described control chip is LM3S control chip 210, particularly, can be LM3S9B92 control chip.
Described control chip is connected with DVB-T Transmitter by control interface 220, described control interface 220 comprises digital processing control interface 221 and radio frequency control interface 222, described radio frequency control interface 221 is partly connected with the radio circuit of DVB-T Transmitter, described digital processing control interface is connected with the FPGA of DVB-T Transmitter, and described digital processing control interface is specially SPI interface.
Because this LM3S control chip is integrated network interface card, described LM3S control chip 210 is for using ethernet communication by RJ45 interface, to realize WEB function.In the utility model, WEB service function that DVB-T Transmitter supervisory control system is integrated.As shown in Figure 2, it is very succinct that DVB-T Transmitter supervisory control system of the present utility model realizes the hardware structure of WEB service function, because this LM3S control chip is integrated network interface card, institute's control chip, as long as connecting RJ45 interface can use ethernet communication and not need to use in addition the peripheral hardwares such as PHY, has been simplified like this system architecture and has been convenient to debugging and maintenance.
Described LM3S control chip is the signal for sending according to DVB-T Transmitter Centralized Controller, liquid crystal display chain of command or network also, by digital processing control interface, control described FPGA and realize long-range unified control figure TV exciter, and control described radio circuit.
Particularly, also for the signal that sends according to DVB-T Transmitter Centralized Controller, the FPGA by 422 interface control figure TV exciters realizes long-range unified control figure TV exciter to described LM3S control chip 210.In the present embodiment, DVB-T Transmitter Centralized Controller, for by 422 interfaces and control chip communication, is realized.Liquid crystal menu control unit is to realize by traditional liquid crystal display control panel control mode, refer to Fig. 2, it is DVB-T Transmitter liquid crystal display control panel schematic diagram, in the present embodiment, the liquid crystal display control panel of this DVB-T Transmitter supervisory control system is used LCDs 231 and 6 independent buttons 232 of character type parallel interface, wherein, independent button comprises 4 directionkeys, 1 esc key and 1 ENTER key, by this control mode, engineering staff can do simple inquiry and setting operation at the scene.Described control chip, specifically for by SPI interface and FPGA communication, is realized the configuration to digital processing functions such as the SFN of DVB-T Transmitter, pilot tone, single dual-frequency network, input patterns.
Described control chip also comprises radiofrequency signal control module, and radiofrequency signal control module comprises the output frequency adjustment unit of radio-frequency (RF) switch unit, adjustment output frequency, the power output setting unit of adjustment power output.Wherein, DVB-T Transmitter radio circuit is partly that independent power supply is controlled, and described radio-frequency (RF) switch unit is for cutting off and opening radio-frequency power supply to realize radio-frequency (RF) switch.
Described control chip also comprises system mode detection module, and described system mode detection module is used for the state of system and monitoring performance.Particularly, system mode detection module for reading digital system state information from FPGA by SPI interface after a Preset Time, and abnormal state of affairs information is added to timestamp is stored in internal memory as log information, control chip is reacted to LCDs or the WEB page by state information amber performance information, and engineering people can check whether the real-time status of Contemporary Digital TV exciter has extremely by liquid crystal display screen or the WEB page.
DVB-T Transmitter supervisory control system of the present utility model has following technique effect: 1, realized a good DVB-T Transmitter supervisory control system framework, but this framework due to its simple light increased the stability of a system and be easy to produce debugging do not lose that it is abundant functional; 2,, at the integrated WEB server of single-chip microcomputer multitask system, greatly reduce the hardware threshold of configuration WEB server.
The foregoing is only embodiment of the present utility model; not thereby limit the scope of the claims of the present utility model; every equivalent structure or conversion of equivalent flow process that utilizes the utility model specification and accompanying drawing content to do; or be directly or indirectly used in other relevant technical fields, be all in like manner included in scope of patent protection of the present utility model.
Claims (4)
1. a DVB-T Transmitter supervisory control system, for control figure TV exciter, described DVB-T Transmitter comprises FPGA and radio circuit, it is characterized in that;
Described DVB-T Transmitter supervisory control system comprises control chip, passes through 422 interfaces and the DVB-T Transmitter Centralized Controller of control chip communication, the liquid crystal display control panel being connected with control chip by liquid crystal interface, wherein, described control chip is LM3S control chip;
Described control chip is connected with DVB-T Transmitter by control interface, described control interface comprises digital processing control interface and radio frequency control interface, described radio frequency control interface is partly connected with the radio circuit of DVB-T Transmitter, described digital processing control interface is connected with the FPGA of DVB-T Transmitter, and described digital processing control interface is specially SPI interface;
Described LM3S control chip is for using ethernet communication by RJ45 interface, to realize WEB function; Described LM3S control chip is the signal for sending according to DVB-T Transmitter Centralized Controller, liquid crystal display chain of command or network also, by digital processing control interface, control described FPGA and realize long-range unified control figure TV exciter, and control described radio circuit.
2. a kind of DVB-T Transmitter supervisory control system according to claim 1, is characterized in that; Described liquid crystal display control panel comprises LCDs and 6 independent buttons of character type parallel interface, and wherein, independent button comprises 4 directionkeys, 1 esc key and 1 ENTER key.
3. a kind of DVB-T Transmitter supervisory control system according to claim 2, is characterized in that; Described control chip also comprises system mode detection module, and described system mode detection module is used for the state of system and monitoring performance, and state and performance information are reacted to LCDs or are reacted to the WEB page by Ethernet.
4. a kind of DVB-T Transmitter supervisory control system according to claim 1, is characterized in that; Described radiofrequency signal control module comprises the output frequency adjustment unit of radio-frequency (RF) switch unit, adjustment output frequency, the power output setting unit of adjustment power output, wherein, DVB-T Transmitter radio circuit is partly that independent power supply is controlled, and described radio-frequency (RF) switch unit is for cutting off and opening radio-frequency power supply to realize radio-frequency (RF) switch.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420197195.9U CN203912107U (en) | 2014-04-22 | 2014-04-22 | Digital television exciter monitoring system |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420197195.9U CN203912107U (en) | 2014-04-22 | 2014-04-22 | Digital television exciter monitoring system |
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| CN203912107U true CN203912107U (en) | 2014-10-29 |
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| CN201420197195.9U Expired - Fee Related CN203912107U (en) | 2014-04-22 | 2014-04-22 | Digital television exciter monitoring system |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106406193A (en) * | 2016-12-15 | 2017-02-15 | 北京北广科技股份有限公司 | Dynamically monitoring system for radio frequency power supply with integrated control panel |
| CN107544035A (en) * | 2016-11-28 | 2018-01-05 | 北京北广科技股份有限公司 | A kind of radio-frequency power supply dynamic detection system and method for work |
-
2014
- 2014-04-22 CN CN201420197195.9U patent/CN203912107U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107544035A (en) * | 2016-11-28 | 2018-01-05 | 北京北广科技股份有限公司 | A kind of radio-frequency power supply dynamic detection system and method for work |
| CN106406193A (en) * | 2016-12-15 | 2017-02-15 | 北京北广科技股份有限公司 | Dynamically monitoring system for radio frequency power supply with integrated control panel |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20141029 Termination date: 20150422 |
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| EXPY | Termination of patent right or utility model |