CN202268964U - Optical receiver data collection circuit for cable television network transformation - Google Patents
Optical receiver data collection circuit for cable television network transformation Download PDFInfo
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- CN202268964U CN202268964U CN2011204121524U CN201120412152U CN202268964U CN 202268964 U CN202268964 U CN 202268964U CN 2011204121524 U CN2011204121524 U CN 2011204121524U CN 201120412152 U CN201120412152 U CN 201120412152U CN 202268964 U CN202268964 U CN 202268964U
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Abstract
The utility model relates to an optical receiver data collection circuit for cable television network transformation and belongs to the technical field of a cable television. The optical receiver data collection circuit comprises operational amplifiers U1 and U2, chips U3 and U4, a data interface CZ1, a positive optical receiving PIN tube D1, diodes D2 to D4, matching coils Z1 to Z3, a switch power supply U7, three-end voltage stabilizing blocks U5 and U6, inductors L1 to L4, resistors R1 to R34 and capacitors C1 to C15, wherein the U1 and the U2 are LM258 operational amplifiers, the chips U3 and U4 are MAX4003 radio frequency signal detection chips, the U5 is an L7805CV three-end voltage stabilizing block, the U6 is an L7808CV three-end voltage stabilizing block, and the U7 is an XFTAC60V-0.42B52A switch power supply. The optical receiver data collection circuit has the advantages that the full network monitoring from a broadcasting and television looped network to sub equipment rooms is realized, a window is provided for the whole hybrid fiber coaxial (HFC) network, the work panorama state of an optical receiver in the current network can be seen through the window, and events going to happen in a next second can be predicted.
Description
Technical field
The utility model relates to a kind of optical receiver data acquisition circuit that is applied to catv net reform, belongs to the cable TV technical field, especially a kind of intermediate equipment based on the cable TV HFC Network Transmission of hybrid fiber coax bilateral network transformation
Background technology
in today of the integration of three networks, broadcasting and TV broadcasting and television network (NGB) network technology of future generation develop rapidly, broadband, two-wayization, digitlization, and CHINA RFTCOM Co Ltd transformation of new generation advances fast; Value-added services such as internet, enterprise's private network, VOIP, Digital Television are flourish; Big of broadcasting and TV forward carrier class operator strides forward.Market-oriented, client, service are unique selections.Requiring one of HFC bilateral network transformation according to SARFT(The State Administration of Radio and Television) is basic transmission network transformation, and basic realization Fiber-To-The-Building is wherein arranged, and realizes that progressively Fiber to the home.Along with the continuous upgrading and the transformation of hfc plant, fiber optic network replaces coaxial cable rapidly with cheap price, wider coverage, transmission speed and littler failure rate faster.This trend just need be used optical receiver in cable TV operator's hfc plant in a large number, and optical receiver just becomes the key equipment in the network in hfc plant like this.From broadcasting and TV, network security is the first important work, and the quick O&M of network is to be the lifting network service quality, so the monitoring of hfc plant equipment is the most important thing of network security.Here I just develop the optical receiver data acquisition circuit of a catv net reform according to the development of CHINA RFTCOM Co Ltd of new generation
Summary of the invention
The purpose of
the utility model is that a kind of optical receiver data acquisition circuit that is used for catv net reform will be provided; It can intuitively show the work at present state, the operational factor of the direct fetch equipment of monitoring computer and remote live control and watch-dog.
The purpose of
the utility model reaches like this; A kind of optical receiver data acquisition circuit that is used for catv net reform comprises amplifier U1; U2; Chip U3; U4; Data-interface CZ1; Forward light-receiving PIN manages D1; Diode D2-D4; Matched coil Z1-Z3; Switching Power Supply U7; Three-terminal regulator block U5; U6; Inductance L 1-L4; Resistance R 1-R34 and capacitor C 1-C15, wherein U1; U2 is the LM258 amplifier; Chip U3; U4 is a MAX4003 radio-frequency signal detection chip; U5 is the L7805CV three-terminal regulator block, and U6 is the L7808CV three-terminal regulator block, and U7 is the XFTAC60V-042B52A Switching Power Supply; AC60V input switch power supply U7 input 1 end; 3 of Switching Power Supply U7; 4 ends are exported respectively+24V; + 12V voltage, the 2 end ground connection of Switching Power Supply U7, the end of voltage+24V connecting resistance R20; Other end output+24V/1 the voltage of resistance R 20; Voltage+12V connects an end of inductance L 4, an end of another termination capacitor C 8 of inductance L 4; Three-terminal regulator block U6 input, the other end of capacitor C 8; Three-terminal regulator block U6 middle-end ground connection; Three-terminal regulator block U6 output termination capacitor C 7; One end and the output voltage+8V of inductance L 3; The other end ground connection of capacitor C 7, another termination three-terminal regulator block U5 input of inductance L 3, three-terminal regulator block U5 middle-end ground connection; One end and the output voltage+5V of three-terminal regulator block U5 output termination capacitor C 6; The other end ground connection of capacitor C 6, voltage+24V/1 connecting resistance R1; One end of capacitor C 5, the other end ground connection of capacitor C 5; The other end connecting resistance R2 of resistance R 1; R21; One end of capacitor C 4; Resistance R 21; The other end ground connection of capacitor C 4, an end of another termination capacitor C 2 of resistance R 2; Matched coil Z1 input, the other end ground connection of capacitor C 2; Matched coil Z1 centre cap connects an end of capacitor C 1; The other end output signal of telecommunication RF/OUT of capacitor C 1 is to amplifying circuit, and matched coil Z1 exports an end of termination inductance L 2, another termination forward light-receiving PIN pipe D1 negative pole of inductance L 2; Forward light-receiving PIN pipe D1 grounding leg ground connection; The anodal end that connects inductance L 1 of forward light-receiving PIN pipe, the other end connecting resistance R3 of inductance L 1; The end of R22, the other end ground connection of resistance R 22; One end of another termination capacitor C 3 of resistance R 3; 3 pin of amplifier U1; The other end ground connection of capacitor C 3,5 of amplifier U1; 6; 7 pin are unsettled, and voltage+5V connects an end of capacitor C 9; 8 pin of amplifier U1; The other end ground connection of capacitor C 9; The end of the 1 pin connecting resistance R4 of amplifier U1; 1 pin of data-interface CZ1,2 pin of another termination amplifier U1 of resistance R 4; One end of resistance R 23, the other end of resistance R 23; The 4 pin ground connection of amplifier U1; Downstream signal is exported 1 level RF/TEST1 and is connect matched coil Z2 centre cap; Matched coil Z2 output head grounding, D3 is anodal for matched coil Z2 input terminating diode, diode D3 negative pole connecting resistance R5; R24; One end of capacitor C 10; Resistance R 24; The other end ground connection of capacitor C 10; The end of the other end connecting resistance R25 of resistance R 5; 1 pin of chip U3, the other end of resistance R 25; 3 of chip U3; 5 pin ground connection, 4 pin of chip U3 connect an end of capacitor C 11; The other end ground connection of capacitor C 11; 6 pin of chip U3 are unsettled, and voltage+5V meets 2 of chip U3; 8 pin; One end of capacitor C 12, the other end ground connection of capacitor C 12; 7 pin of chip U3 connect 3 pin of data-interface CZ1; Downstream signal is exported 2 level RF/TEST2 and is connect matched coil Z3 centre cap, matched coil Z3 output head grounding, and D4 is anodal for matched coil Z3 input terminating diode; Diode D4 negative pole connecting resistance R6; R26; One end of capacitor C 13; Resistance R 26; The other end ground connection of capacitor C 13, the end of the other end connecting resistance R27 of resistance R 6; 1 pin of chip U4, the other end of resistance R 27; 3 of chip U4; 5 pin ground connection; 4 pin of chip U4 connect an end of capacitor C 14; The other end ground connection of capacitor C 14,6 pin of chip U4 are unsettled, and voltage+5V meets 2 of chip U4; 8 pin; One end of capacitor C 15; The other end ground connection of capacitor C 15; 7 pin of chip U4 connect 5 pin of data-interface CZ1, and voltage+5V connects 7 pin of data-interface CZ1, the 9 pin ground connection of data-interface CZ1; The end of voltage+8V connecting resistance R8; The other end connecting resistance R7 of resistance R 8; The end of R28, the other end ground connection of resistance R 28,2 pin of another termination data-interface CZ1 of resistance R 7; The end of voltage+12V connecting resistance R10; The other end connecting resistance R9 of resistance R 10; The end of R29, the other end ground connection of resistance R 29,4 pin of another termination data-interface CZ1 of resistance R 9; The end of voltage+24V connecting resistance R12; The other end connecting resistance R11 of resistance R 12; The end of R30, the other end ground connection of resistance R 30,6 pin of another termination data-interface CZ1 of resistance R 11; It is anodal that voltage AC60V meets diode D2; Diode D2 negative pole connecting resistance R14 one end, the other end connecting resistance R13 of resistance R 14; R31 one end, the other end ground connection of resistance R 31; 8 pin of another termination data-interface CZ1 of resistance R 13; Voltage+24V connects 8 pin of amplifier U2; One end of resistance R 17, the end of the other end connecting resistance R33 of resistance R 17; 5 pin of amplifier U2, the other end ground connection of resistance R 33; Voltage+24V/1 connecting resistance R18; The end of R34; The other end ground connection of resistance R 34,6 pin of another termination amplifier U2 of resistance R 18; One end of resistance R 19,3 of another termination amplifier U2 of resistance R 19; 7 pin; The 1 pin connecting resistance R15 of amplifier U2; The end of R16; 10 pin of another termination data-interface CZ1 of resistance R 15, the end of the other end connecting resistance R32 of resistance R 16; 2 pin of amplifier U2, the other end of resistance R 32; The 4 pin ground connection of amplifier U2.
the utility model is that a kind of optical receiver data acquisition circuit that is used for catv net reform will be provided, and the data of gathering are outputed to network management responder through data-interface.Collection and combined data are to " high thing reaches the hfc plant system management software " in real time, and webmastering software is monitored the optical receiver operation conditions in the hfc plant in real time, to topology, the configuration management of equipment; Map function display device position; The network monitoring device operation conditions, remote online conditioning equipment operational factor, the control of managed devices; Data analysis; System self-test and Fault Isolation, alarm prompt and location, warning information is collected and management; Historical data management generates parameter daily sheet etc.The whole network monitoring of realization from the broadcasting and TV looped network to minute machine room is equivalent to see through window and can see the panorama state of optical receiver work in the current network for whole hfc plant provides a fan window, and estimates next second what to take place.
Description of drawings
Fig. 1 is the electrical schematic diagram of the utility model.
Embodiment
are referring to accompanying drawing: the optical receiver data acquisition circuit that is used for catv net reform is when Switching Power Supply U7 moves; 1V/mW (forward light-receiving luminous power), RF/TEST1 (downstream signal is exported 1 level), RF/TEST2 (downstream signal is exported 2 level), POWER (Overall Power Consumption) ,+5V ,+8V ,+12V ,+24V, AC60V signal be clipped to 1,3,5,10,7,2,4,6,8 pin of data-interface CZ1 through sample circuit output detection signal branch, accomplish the data acquisition of optical receiver.Voltage AC60V input switch power supply, Switching Power Supply operation back output+24V ,+12V voltage; + 24V is through resistance R 20 output+24V/1 voltages; The voltage conversion circuit that voltage+the 12V input is made up of inductance L 4, capacitor C 7, C8 three-terminal regulator block U6, one tunnel output+8V voltage, the voltage conversion circuit that another road input is made up of inductance L 3, capacitor C 6 three-terminal regulator block U5, output+5V voltage; The power supply circuits that voltage+the 24V/1 input is made up of resistance R 1, R2, R21, capacitor C 1, C2, C4, C5, inductance L 2, matched coil Z1 drive forward light-receiving PIN pipe D1 work; The signal of telecommunication RE/OUT of forward light-receiving PIN pipe output signal of telecommunication process inductance L 2, matched coil Z1, capacitor C 1 is to amplifying circuit; Forward light-receiving PIN manages the luminous power correction circuit of anodal Output optical power voltage through being made up of inductance L 1, resistance R 3, R22, capacitor C 3, and output 1V/mW luminous power voltage is to the luminous power change-over circuit; Luminous power change-over circuit by amplifier U1, resistance R 4, R23, capacitor C 9 are formed is exported 1 pin of 1V/mW detection signal to data-interface CZ1; Downstream signal is exported the radio frequency signal detecting circuitry that 1 level RF/TEST1 input is made up of matched coil Z2, chip U3, diode D3, resistance R 5, R24, R25, capacitor C 10-C12 and is exported 3 pin of RF/TEST1 detection signal to data-interface CZ1; Downstream signal is exported the radio frequency signal detecting circuitry that 2 level RF/TEST2 input is made up of matched coil Z3, chip U4, diode D4, resistance R 6, R26, R27, capacitor C 13-C15 and is exported 5 pin of RF/TEST2 detection signal to data-interface CZ1; Voltage+8V is through the sample circuit output+8V detection signal be made up of resistance R 7, R8, R28 2 pin to data-interface CZ1; Voltage+12V is through the sample circuit output+12V detection signal be made up of resistance R 9, R10, R29 4 pin to data-interface CZ1; Voltage+24V is through the sample circuit output+24V detection signal be made up of resistance R 11, R12, R30 6 pin to data-interface CZ1; The sample circuit output voltage AC60V detection signal of being made up of resistance R 13, R14, R31 after the AC60V process diode D2 rectification is to 8 pin of data-interface CZ1; Voltage+24V ,+24V/1 exports 10 pin of POWER detection signal to data-interface CZ1 through the comparison circuit of being made up of amplifier U2, resistance R 15-19, R32-R34.
the most attractive benefit of optical receiver data acquisition circuit is the operation conditions of optical receiver in the ability remote real-time monitoring hfc plant; Can see the panorama state of optical receiver work in the current network, and estimate next second what to take place.In addition, it also has following some technical advantage:
1, intuitively show the work at present state: the optical receiver operation, green Led power supply indicator is bright; When transponder is connected with monitoring computer, green Led status indicator lamp is bright, and realization is connected with monitoring computer in expression; When transponder and monitoring computer carry out exchanges data, green Led data communication indicator light does not stop flicker, expression with monitoring computer realization communicate by letter.
, the direct fetch equipment operational factor of monitoring computer: the optical receiver operation, various operational factors, operating voltage demonstrate concrete numerical value through transponder on the monitoring computer LCDs.
Control of
, remote live and watch-dog: transponder data is to " high thing reaches the hfc plant system management software "; Webmastering software is monitored the operation conditions of optical receiver in the hfc plant in real time; Topology, configuration management to equipment; Map function display device position; The network monitoring device operation conditions; Remote online conditioning equipment operational factor; The control of managed devices; Data analysis; System self-test and Fault Isolation, alarm prompt and location, warning information is collected and management; Historical data management generates parameter daily sheet etc.The whole network monitoring of realization from the broadcasting and TV looped network to minute machine room is equivalent to see through window and can see the panorama state of optical receiver work in the current network for whole hfc plant provides a fan window, and estimates next second what to take place.
, fail safe, reliability be high: when the upward signal input noise of optical receiver is big, can close this port of section, avoid noise collection effect to cause the CMTS system normally to move through the long-range triple gate switch of webmastering software through the optical receiver port
Claims (1)
1.
A kind of optical receiver data acquisition circuit that is used for catv net reform; It is characterized in that comprising amplifier U1; U2; Chip U3; U4; Data-interface CZ1; Forward light-receiving PIN manages D1; Diode D2-D4; Matched coil Z1-Z3; Switching Power Supply U7; Three-terminal regulator block U5; U6; Inductance L 1-L4; Resistance R 1-R34 and capacitor C 1-C15; U1 wherein; U2 is the LM258 amplifier, chip U3; U4 is a MAX4003 radio-frequency signal detection chip, and U5 is the L7805CV three-terminal regulator block; U6 is the L7808CV three-terminal regulator block; U7 is the XFTAC60V-042B52A Switching Power Supply, AC60V input switch power supply U7 input 1 end, 3 of Switching Power Supply U7; 4 ends are exported respectively+24V; + 12V voltage; The 2 end ground connection of Switching Power Supply U7; The end of voltage+24V connecting resistance R20, the other end output+24V/1 voltage of resistance R 20, voltage+12V connects an end of inductance L 4; One end of another termination capacitor C 8 of inductance L 4; Three-terminal regulator block U6 input; The other end of capacitor C 8; Three-terminal regulator block U6 middle-end ground connection, three-terminal regulator block U6 output termination capacitor C 7; One end and the output voltage+8V of inductance L 3, the other end ground connection of capacitor C 7; Another termination three-terminal regulator block U5 input of inductance L 3; Three-terminal regulator block U5 middle-end ground connection, an end and the output voltage+5V of three-terminal regulator block U5 output termination capacitor C 6, the other end ground connection of capacitor C 6; Voltage+24V/1 connecting resistance R1; One end of capacitor C 5; The other end ground connection of capacitor C 5, the other end connecting resistance R2 of resistance R 1; R21; One end of capacitor C 4, resistance R 21; The other end ground connection of capacitor C 4; One end of another termination capacitor C 2 of resistance R 2; Matched coil Z1 input; The other end ground connection of capacitor C 2, matched coil Z1 centre cap connects an end of capacitor C 1, and the other end output signal of telecommunication RF/OUT of capacitor C 1 is to amplifying circuit; One end of matched coil Z1 output termination inductance L 2; Another termination forward light-receiving PIN pipe D1 negative pole of inductance L 2, forward light-receiving PIN pipe D1 grounding leg ground connection, the anodal end that connects inductance L 1 of forward light-receiving PIN pipe; The other end connecting resistance R3 of inductance L 1; The end of R22; The other end ground connection of resistance R 22, an end of another termination capacitor C 3 of resistance R 3; 3 pin of amplifier U1, the other end ground connection of capacitor C 3; 5 of amplifier U1; 6; 7 pin are unsettled; Voltage+5V connects an end of capacitor C 9; 8 pin of amplifier U1, the other end ground connection of capacitor C 9, the end of the 1 pin connecting resistance R4 of amplifier U1; 1 pin of data-interface CZ1; 2 pin of another termination amplifier U1 of resistance R 4; One end of resistance R 23; The other end of resistance R 23; The 4 pin ground connection of amplifier U1, downstream signal is exported 1 level RF/TEST1 and is connect matched coil Z2 centre cap, matched coil Z2 output head grounding; D3 is anodal for matched coil Z2 input terminating diode; Diode D3 negative pole connecting resistance R5; R24; One end of capacitor C 10, resistance R 24; The other end ground connection of capacitor C 10, the end of the other end connecting resistance R25 of resistance R 5; 1 pin of chip U3; The other end of resistance R 25; 3 of chip U3; 5 pin ground connection; 4 pin of chip U3 connect an end of capacitor C 11, the other end ground connection of capacitor C 11, and 6 pin of chip U3 are unsettled; Voltage+5V meets 2 of chip U3; 8 pin; One end of capacitor C 12; The other end ground connection of capacitor C 12,7 pin of chip U3 connect 3 pin of data-interface CZ1, and downstream signal is exported 2 level RF/TEST2 and is connect matched coil Z3 centre cap; Matched coil Z3 output head grounding; D4 is anodal for matched coil Z3 input terminating diode, diode D4 negative pole connecting resistance R6; R26; One end of capacitor C 13, resistance R 26; The other end ground connection of capacitor C 13; The end of the other end connecting resistance R27 of resistance R 6; 1 pin of chip U4; The other end of resistance R 27; 3 of chip U4; 5 pin ground connection, 4 pin of chip U4 connect an end of capacitor C 14, the other end ground connection of capacitor C 14; 6 pin of chip U4 are unsettled; Voltage+5V meets 2 of chip U4; 8 pin; One end of capacitor C 15, the other end ground connection of capacitor C 15,7 pin of chip U4 connect 5 pin of data-interface CZ1; Voltage+5V connects 7 pin of data-interface CZ1; The 9 pin ground connection of data-interface CZ1, the end of voltage+8V connecting resistance R8, the other end connecting resistance R7 of resistance R 8; The end of R28; The other end ground connection of resistance R 28; 2 pin of another termination data-interface CZ1 of resistance R 7, the end of voltage+12V connecting resistance R10, the other end connecting resistance R9 of resistance R 10; The end of R29; The other end ground connection of resistance R 29; 4 pin of another termination data-interface CZ1 of resistance R 9, the end of voltage+24V connecting resistance R12, the other end connecting resistance R11 of resistance R 12; The end of R30; The other end ground connection of resistance R 30; It is anodal that 6 pin of another termination data-interface CZ1 of resistance R 11, voltage AC60V meet diode D2, diode D2 negative pole connecting resistance R14 one end; The other end connecting resistance R13 of resistance R 14; R31 one end; The other end ground connection of resistance R 31,8 pin of another termination data-interface CZ1 of resistance R 13, voltage+24V connects 8 pin of amplifier U2; One end of resistance R 17; The end of the other end connecting resistance R33 of resistance R 17; 5 pin of amplifier U2; The other end ground connection of resistance R 33, voltage+24V/1 connecting resistance R18; The end of R34, the other end ground connection of resistance R 34; 6 pin of another termination amplifier U2 of resistance R 18; One end of resistance R 19; 3 of another termination amplifier U2 of resistance R 19; 7 pin, the 1 pin connecting resistance R15 of amplifier U2; The end of R16,10 pin of resistance R 15 really good another termination data-interface CZ1; The end of the other end connecting resistance R32 of resistance R 16; 2 pin of amplifier U2, the other end of resistance R 32; The 4 pin ground connection of amplifier U2
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011204121524U CN202268964U (en) | 2011-10-26 | 2011-10-26 | Optical receiver data collection circuit for cable television network transformation |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011204121524U CN202268964U (en) | 2011-10-26 | 2011-10-26 | Optical receiver data collection circuit for cable television network transformation |
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| Publication Number | Publication Date |
|---|---|
| CN202268964U true CN202268964U (en) | 2012-06-06 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011204121524U Expired - Fee Related CN202268964U (en) | 2011-10-26 | 2011-10-26 | Optical receiver data collection circuit for cable television network transformation |
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| Country | Link |
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| CN (1) | CN202268964U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102510466A (en) * | 2011-10-26 | 2012-06-20 | 常熟市高事达光电科技有限公司 | Data acquisition circuit for optical receiver for transforming cable TV network |
| CN104506245A (en) * | 2014-12-25 | 2015-04-08 | 四川璧虹广播电视新技术有限公司 | ATT control method for management type household optical receiving machine |
-
2011
- 2011-10-26 CN CN2011204121524U patent/CN202268964U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102510466A (en) * | 2011-10-26 | 2012-06-20 | 常熟市高事达光电科技有限公司 | Data acquisition circuit for optical receiver for transforming cable TV network |
| CN104506245A (en) * | 2014-12-25 | 2015-04-08 | 四川璧虹广播电视新技术有限公司 | ATT control method for management type household optical receiving machine |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20120606 Termination date: 20131026 |