CN113541765A - General monitoring circuit for satellite ground station channel product - Google Patents
General monitoring circuit for satellite ground station channel product Download PDFInfo
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- CN113541765A CN113541765A CN202110743195.9A CN202110743195A CN113541765A CN 113541765 A CN113541765 A CN 113541765A CN 202110743195 A CN202110743195 A CN 202110743195A CN 113541765 A CN113541765 A CN 113541765A
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- 238000012544 monitoring process Methods 0.000 title claims abstract description 12
- 238000004891 communication Methods 0.000 claims abstract description 64
- 238000006243 chemical reaction Methods 0.000 claims description 101
- 238000005516 engineering process Methods 0.000 claims description 30
- 238000001514 detection method Methods 0.000 claims description 10
- 239000013078 crystal Substances 0.000 claims description 3
- 239000004065 semiconductor Substances 0.000 claims description 3
- 238000002955 isolation Methods 0.000 abstract description 7
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- 230000003287 optical effect Effects 0.000 description 7
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04B—TRANSMISSION
- H04B7/00—Radio transmission systems, i.e. using radiation field
- H04B7/14—Relay systems
- H04B7/15—Active relay systems
- H04B7/185—Space-based or airborne stations; Stations for satellite systems
- H04B7/1851—Systems using a satellite or space-based relay
- H04B7/18517—Transmission equipment in earth stations
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Abstract
The invention discloses a universal monitoring circuit for a satellite ground station channel product, and relates to the field of microwave communication. The universal control circuit board has strong universality, can meet the requirements of various models, and can be universal at board level; all components on the universal control circuit board can adopt domestic components and are independently controllable; the universal output interface of the 5VTTL of the circuit board is up to 40 paths, can meet the control of a plurality of modules at the same time, and adopt the photoelectric coupler to carry on the electrical isolation; the universal input interface of the 5VTTL of the circuit board reaches 32 paths, can meet the requirement of input signal acquisition of a plurality of modules at the same time, and adopts a photoelectric coupler to carry out electric isolation; the standard RS-422 communication interface of the circuit board reaches 6 paths, and can simultaneously meet the communication with a plurality of modules; all the external input and output interface circuits are designed with TVS protective devices when the devices are selected, thus improving the electromagnetic compatibility and reliability.
Description
Technical Field
The invention relates to the field of microwave communication, in particular to a monitoring circuit in a microwave transceiving channel device of a satellite ground station.
Background
The traditional microwave communication transceiving channel control circuit board is repeatedly developed due to the adoption of customization, has long period and high cost, and greatly limits the wide application of the traditional microwave communication transceiving channel control circuit board.
Disclosure of Invention
The technical problem to be solved by the invention is as follows: the universal frequency control circuit is designed by analyzing the characteristics of common interfaces of various modules, can be adapted to various modules, and solves the problem that the conventional repeated development work is carried out according to different modules.
The technical solution of the invention is as follows: a satellite earth station channel product universal monitoring circuit, comprising: the system comprises a processor chip, a power conversion chip, a 4 x 4 key detection circuit, an LED lamp driving circuit, a storage chip, a DC/DC power conversion module, twelve interface protection circuits, a 100M/10M Ethernet communication conversion module, an RS-422\ RS-485 communication conversion module, an RS-232 communication conversion circuit, a 3.3V-to-5V level conversion circuit, a 5V-to-3.3V level conversion circuit, a clock circuit, an OLED driving circuit, a debugging interface circuit, a mode switching circuit, a CN 1-CN 15 interface, a SW1 interface and a LAN1 interface; the clock circuit includes: a 50M clock circuit and a 25M clock circuit;
the input ends of the power conversion chip and the DC/DC power conversion module are connected with a CN9 interface, and the output ends supply power to corresponding module circuits in the monitoring circuit according to voltage; the CN2 interface is connected with the processor chip after passing through the first protection circuit and the 4 x 4 key detection circuit in sequence, the processor chip is connected with the CN3 interface through the OLED drive circuit, the CN4 interface is connected with the processor chip after passing through the second protection circuit and the 5V-to-3.3V level conversion circuit in sequence, the CN5 interface is connected with the processor chip after passing through the third protection circuit and the 5V-to-3.3V level conversion circuit in sequence, the SW1 interface is connected with the processor chip through the debugging interface, the LAN1 interface is connected with the processor chip after passing through the fourth protection circuit and the 100M/10M Ethernet communication conversion module in sequence, and the 100M/10M Ethernet communication conversion module is also connected with the 50M clock circuit; after the processor chip is connected with the 3.3V-to-5V level conversion circuit, the 3.3V-to-5V level conversion circuit is respectively connected with the CN7 interface through a fifth protection circuit and connected with the CN8 interface through a sixth protection circuit; the processor chip is connected with one end of the RS-232 communication conversion circuit, and the other end of the RS-232 communication conversion circuit is connected with the CN11 interface through a seventh protection circuit and connected with the CN10 interface through an eighth protection circuit respectively; the processor chip is connected with the RS-422\ RS-485 communication conversion module, and the RS-422\ RS-485 communication conversion module is respectively connected with the CN15 interface through a ninth protection circuit, the CN14 interface through a tenth protection circuit, the CN13 interface through an eleventh protection circuit and the CN12 interface through a twelfth protection circuit; the CN6 interface is connected with the processor chip through the mode switching circuit, the processor chip is connected with the CN1 interface through the LED lamp driving circuit, the processor chip is also directly connected with the storage chip, and the processor chip is also connected with the 25M clock circuit.
Further, the processor chip is a GD32 series MCU under the flag of Beijing Mjjei Innovation science and technology Limited, the power conversion chip is an LDO chip LM1086S-3.3/TR of Guangdong Hua Guang semiconductor Limited, the memory chip is a GD25Q series NOR FLSAH chip under the flag of Beijing Mjjei Innovation science and technology Limited, the DC/DC power conversion module is an isolated DC/DC module B0505T-1WR3 of Guangzhou Jinyang technology Limited, the 100M/10M Ethernet communication conversion module is an SR8201F of Shenzhen and core Runko technology Limited, the RS-422\ RS-485 communication conversion circuit is an RS-422\ RS-485 chip of core Strength electronics Limited, the RS-232 communication conversion circuit is an RS-232 chip of core Strength electronics technology Limited, the 3.3V-to-5V level conversion circuit is an Authenar photo coupler of Authenar technology Limited, the 5V to 3.3V level conversion circuit is a photoelectric coupler of Aulund science and technology Limited company in Shenzhen City; the clock circuit is an active crystal oscillator of 25MHz and 50MHz of Shenzhen Yangxing technology Limited company.
In the invention, the universal control circuit board has strong universality, can meet the requirements of various types and can be universal at board level; all components on the universal control circuit board can adopt domestic components and are independently controllable; the universal output interface of the 5VTTL of the circuit board is up to 40 paths, can meet the control of a plurality of modules at the same time, and adopt the photoelectric coupler to carry on the electrical isolation; the universal input interface of the 5VTTL of the circuit board reaches 32 paths, can meet the requirement of input signal acquisition of a plurality of modules at the same time, and adopts a photoelectric coupler to carry out electric isolation; the standard RS-422 communication interface of the circuit board reaches 6 paths, and can simultaneously meet the communication with a plurality of modules; all the external input and output interface circuits are designed with TVS protective devices when the devices are selected, thus improving the electromagnetic compatibility and reliability. The MCU selects a GD32 series of Beijing Mr. easy-to-create science and technology Limited, the series of products are reliable and stable, the development resources are complete, and the development of the products is facilitated; all connectors are A3963 series, A2001 and A2006 series connectors of the Yangtze river connector company made in China, and are high in reliability, low in cost and small in size.
Drawings
Fig. 1 is a layout diagram of a general monitoring circuit for a satellite earth station channel product according to the present invention.
In the figure, 100 is a universal control circuit board, 1 is a processor chip, 2 is a power conversion chip, 3.4 multiplied by 4 key detection circuits, 4 is an LED lamp driving circuit, 5 is a storage chip, 6 is a DC/DC power conversion circuit, 7 is an interface protection circuit, 8.100M/10M Ethernet communication conversion module, 9 is an RS-422/RS-485 communication conversion module, 10 is an RS-232 communication conversion circuit, 11.3.3V to 5V level conversion circuit, 12.5V to 3.3V level conversion circuit, 13.25M clock circuit, 14.50M clock circuit and 15 is an OLED driving circuit.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are some, not all, embodiments of the present invention.
A novel universal control circuit board 100 comprises an MCU chip 1, an LDO power supply chip 2, a 4 x 4 key detection circuit 3, an LED indicator light drive circuit 4, a storage circuit 5, a DC/DC power supply conversion module 6, an interface protection circuit 7, a 100M/10M Ethernet communication conversion module 8, an RS-422/RS-485 communication conversion module 9, an RS-232 communication conversion circuit 10, a 3.3V-to-5V level conversion circuit 11, a 5V-to-3.3V level conversion circuit 12, a 25M clock circuit 13, a 50M clock circuit 14, an OLED drive circuit 15 and a connector combination, wherein the circuit board in the figure is designed to control a frequency conversion module, a local oscillator module, a low noise amplifier, a power amplifier, a 2-to-1 coaxial switch, a phase shifter, a waveguide switch and a zero calibration frequency converter, and is arranged as shown in the figure.
The connector combination comprises connectors CN1, CN2, CN3, CN4, CN5, CN6, CN7, CN8, CN9, CN10, CN11, CN12, CN13, CN14, CN15, LAN1 and SW 1.
The CN9 is placed at the rightmost side of the universal control circuit board 100 and is used as an input interface of +5V to supply power to the power conversion circuit.
The power conversion circuit comprises an LDO power conversion chip 2 and a DC/DC power conversion module 6;
the connector CN2 is arranged at the lower right corner of the circuit board and is used for collecting input level signals detected by the 4 x 4 key detection circuit 3 and inputting the signals to GPIO of the MCU;
the connector CN3 is arranged at the lower right corner of the circuit board, and the right side of the connector CN2 is used for driving the OLED display screen to display;
the connector CN1 is arranged at the lower edge of the circuit board and on the left side of the connector CN1 and is used for driving the light-emitting diode to emit light;
the connectors CN10 and CN11 are arranged at the left edge of the circuit board and are used for 2 paths of RS-422/RS-485 communication or 2 paths of RS-232 communication;
the connector CN12 is arranged at the left lower corner of the circuit board and is used for 1-channel RS-422/RS-485 communication;
the connector CN13 is arranged at the left lower corner of the circuit board and at the left side of the connector CN12 and is used for 1-path RS-422/RS-485 communication;
the connector CN14 is arranged at the left lower corner of the circuit board and at the left side of the connector CN13 and is used for 1-path RS-422/RS-485 communication;
the connector CN15 is arranged at the left lower corner of the circuit board and at the left side of the connector CN14 and is used for 1-path RS-422/RS-485 communication;
the RS-422/RS-485 communication or the RS-232 communication is realized by adopting a special RS-422/RS-485 conversion chip and a special RS-232 conversion chip;
the connector LAN1 is arranged on the upper edge of the circuit board and is used for communication of a 100M/10M network port;
the communication of the 100M/10M network port is realized by adopting a special physical layer Ethernet port chip, and the data of the physical layer is transmitted to an MAC layer of the MCU;
the connector CN7 is arranged at the upper left corner of the circuit board and is used for outputting 5VTTL signals;
the connector CN8 is arranged at the upper left corner of the circuit board and at the left side of the connector CN7 and is used for outputting 5VTTL signals;
the output of the 5VTTL signal is realized by adopting a photoelectric coupler, an input signal of an MCU is input at one side of the optical coupler, and a converted electric signal is output at the other side of the optical coupler;
the connector CN4 is arranged at the upper right corner of the circuit board and is used for inputting 5VTTL signals;
the connector CN5 is arranged at the upper right corner of the circuit board, and the left side of the connector CN4 is used for inputting 5VTTL signals;
the 5VTTL signal is input by adopting a photoelectric coupler, the 5VTTL signal is input at one side of the optical coupler, and the converted electric signal is output to the MCU at the other side of the optical coupler;
when the circuit board realizes the remote control function, control instruction information input by remote control is received through any one of CN 10-CN 15 or LAN1, the superior system information received through the communication conversion module is converted into information which can be identified by the MCU, the instruction information is processed by the MCU chip, and is converted through a 3.3V-to-5V level conversion circuit and then corresponding external modules are controlled through CN7 and CN8, or is converted through the communication conversion module and then corresponding external modules are controlled through CN 10-CN 15 (except for the path used as the remote control input).
When the circuit board realizes the local control function, the control instruction information input locally is received through the CN2, the information input externally is converted into the information which can be identified by the MCU through the 4 multiplied by 4 key detection circuit, the instruction information is processed by the MCU chip, the instruction information is converted through the 3.3V-to-5V level conversion circuit and then the corresponding external module is controlled through the CN7 and the CN8, or the instruction information is converted through the communication conversion module and then the corresponding external module is controlled through the CN 10-CN 15 (except the path used as the remote control input).
When the circuit board realizes the remote control inquiry function, any one of CN 10-CN 15 or LAN1 receives inquiry command information input by remote control, the superior system information received by the communication conversion module is converted into information which can be identified by the MCU, the MCU chip processes the command information, and the information which needs to be replied is converted by the communication conversion module and then returned to the remote control through any one of CN 10-CN 15 or LAN 1.
When the circuit board realizes the local query function, the CN2 is used for receiving locally input control instruction information, the 4 multiplied by 4 key detection circuit is used for converting the externally input query instruction information into information which can be identified by the MCU, the MCU chip is used for processing the instruction information, and the queried information is transmitted to the OLED display screen through the CN3 interface after being transmitted by the display screen driving circuit.
The communication conversion module is a 100M/10M self-adaptive Ethernet, an RS422/RS485 bus conversion module and an RS-232 bus conversion module.
When the circuit board realizes the function of the LED indicator lamp, the MCU chip reads the state of the external input module through input interfaces such as CN4, CN5 or CN 10-CN 15 (except the path used as remote control input) and the like, converts the state into information which can be identified by the MCU, processes the information by the MCU, converts the information by the LED drive circuit and transmits corresponding control signals to the LED indicator lamp through CN1 to display.
The general control circuit board:
the size of the circuit board is 200mm multiplied by 70mm, 18 connectors CN 1-CN 15, LAN1 and SW1 are arranged on the universal monitoring board, wherein CN11 and CN10 are placed on the left side of the board, CN8, CN7, LAN1, SW1, CN5 and CN4 are sequentially placed from left to right on the upper edge of the board, CN15, CN14, CN13, CN12, CN6, CN1, CN2 and CN3 are sequentially placed from left to right on the lower edge of the board, and CN9 is placed on the right side of the board.
The invention provides a universal monitoring circuit for a satellite ground station channel product, which is composed of pure domestic devices, and is characterized in that the universal monitoring circuit comprises a processor chip, a power conversion chip, a 4 multiplied by 4 key detection circuit, an LED indicator lamp driving circuit, a storage chip, a DC/DC power conversion module, an interface protection circuit, a 10M/100M Ethernet communication conversion module, an RS-422\ RS-485 communication conversion module, an RS-232 communication conversion circuit, a 3.3V-to-5V level conversion circuit, a 5V-to-3.3V level conversion circuit, a clock circuit and a connector combination;
the processor chip selects a GD32 series MCU under the national Beijing McDonor easy-to-create science and technology limited company as a main control chip of the general control circuit board to carry out logic control, signal receiving and output; the power conversion chip adopts an LDO chip LM1086S-3.3/TR of Guanghua semiconductor Limited to convert a 5V power supply into 3.3V power supply for a processor and other chips; the storage chip adopts GD25Q series NOR FLSAH chips under the flag of Beijing Mr. easy innovation science and technology corporation to realize the storage of the characteristic data; the DC/DC power supply conversion module adopts a DC/DC module B0505T-1WR3 of the national Guangzhou Jinsheng Yang science and technology Limited company to realize 5V to 5V conversion and is used for supplying power for a 5V level of a photoelectric coupler; the 10M/100M Ethernet communication conversion module adopts a PHY chip to select SR8201F of Shenzhen city made in China and Mitsunekeke technology Limited to realize a 100M/10M physical layer link and transmits the received data to an MAC layer of the MCU; the 10M/100M Ethernet communication conversion module further comprises a network transformer, wherein the network transformer is an HR641680 network transformer of Hanren electronics Limited company in Zhongshan city, and electric isolation of front and rear-stage electric signals is realized; the RS-422\ RS-485 communication conversion module adopts an RS-422\ RS-485 chip of a domestic Cornst electronics technology Limited company to realize the input and output of external RS-422 signals and RS-485 signals; the RS-422\ RS-485 communication conversion module also comprises a TVS (transient voltage suppressor), wherein the TVS selects SM712 of Shanghai Lei Mao electronic technology Limited for transient overvoltage protection; the RS-422\ RS-485 communication conversion module further comprises a high-speed optocoupler device, wherein the high-speed optocoupler device adopts a high-speed optocoupler OR-6N137 of Aurentziaceae technologies Limited in Shenzhen, so as to realize the electrical isolation of the processor and the RS-422\ RS-485 chip; the RS-232 communication conversion module adopts an RS-232 chip of a domestic core Strett electronic technology Limited company to realize the input and output of an external RS-232 signal; the RS-232 communication conversion module further comprises a high-speed optical coupler, and the high-speed optical coupler adopts a high-speed optical coupler OR-6N137 of Aulandscience and technology Limited, Shenzhen, to realize the electrical isolation of the processor and the RS-232 chip; the 3.3V to 5V level conversion circuit adopts a photoelectric coupler of Aulundelke technology Limited in Shenzhen City made by China to realize the 3.3V signal receiving of the processor chip, converts the signal into a 5V signal and outputs the 5V signal to a corresponding module; the 5V to 3.3V level conversion circuit adopts a photoelectric coupler of Aulundelke technology Limited in Shenzhen City made by China to realize external 5V signal receiving, converts the external 5V signal into a 3.3V signal and inputs the signal to the processor chip; the clock circuit adopts 25MHz and 50MHz active crystal oscillators of Shenzhen Yangxing technology Limited, produced in China, as clock signals to be provided for the MCU and the network port PHY chip; the connector combination adopts A3963 series of the Yangtze river connector company made in China, and power supply input of 5V and 12V is realized; the connector combination also comprises A2001 and A2006 series connectors selected from the Yangtze river connector company made in China.
Claims (2)
1. A satellite earth station channel product universal monitoring circuit, comprising: the system comprises a processor chip, a power conversion chip, a 4 x 4 key detection circuit, an LED lamp driving circuit, a storage chip, a DC/DC power conversion module, twelve interface protection circuits, a 100M/10M Ethernet communication conversion module, an RS-422\ RS-485 communication conversion module, an RS-232 communication conversion circuit, a 3.3V-to-5V level conversion circuit, a 5V-to-3.3V level conversion circuit, a clock circuit, an OLED driving circuit, a debugging interface circuit, a mode switching circuit, a CN 1-CN 15 interface, a SW1 interface and a LAN1 interface; the clock circuit includes: a 50M clock circuit and a 25M clock circuit;
the input ends of the power conversion chip and the DC/DC power conversion module are connected with a CN9 interface, and the output ends supply power to corresponding module circuits in the monitoring circuit according to voltage; the CN2 interface is connected with the processor chip after passing through the first protection circuit and the 4 x 4 key detection circuit in sequence, the processor chip is connected with the CN3 interface through the OLED drive circuit, the CN4 interface is connected with the processor chip after passing through the second protection circuit and the 5V-to-3.3V level conversion circuit in sequence, the CN5 interface is connected with the processor chip after passing through the third protection circuit and the 5V-to-3.3V level conversion circuit in sequence, the SW1 interface is connected with the processor chip through the debugging interface, the LAN1 interface is connected with the processor chip after passing through the fourth protection circuit and the 100M/10M Ethernet communication conversion module in sequence, and the 100M/10M Ethernet communication conversion module is also connected with the 50M clock circuit; after the processor chip is connected with the 3.3V-to-5V level conversion circuit, the 3.3V-to-5V level conversion circuit is respectively connected with the CN7 interface through a fifth protection circuit and connected with the CN8 interface through a sixth protection circuit; the processor chip is connected with one end of the RS-232 communication conversion circuit, and the other end of the RS-232 communication conversion circuit is connected with the CN11 interface through a seventh protection circuit and connected with the CN10 interface through an eighth protection circuit respectively; the processor chip is connected with the RS-422\ RS-485 communication conversion module, and the RS-422\ RS-485 communication conversion module is respectively connected with the CN15 interface through a ninth protection circuit, the CN14 interface through a tenth protection circuit, the CN13 interface through an eleventh protection circuit and the CN12 interface through a twelfth protection circuit; the CN6 interface is connected with the processor chip through the mode switching circuit, the processor chip is connected with the CN1 interface through the LED lamp driving circuit, the processor chip is also directly connected with the storage chip, and the processor chip is also connected with the 25M clock circuit.
2. The universal monitor circuit for satellite ground station channel products as claimed in claim 1, wherein the processor chip is a GD32 series MCU under the flag of Beijing Mr. easy Innovation technology, Inc., the power conversion chip is a LDO chip LM1086S-3.3/TR of Guangdong Hua crown semiconductors, Inc., the memory chip is a GD25Q series NOR FLSAH chip under the flag of Beijing Mr. easy Innovation technology, Inc., the DC/DC power conversion module is an isolated DC/DC module B0505T-1WR3 of Guangzhou Jinsheng Yang technology, Inc., the 100M/10M Ethernet communication conversion module is SR8201F of Shenzhen and core Runko technology, the RS-422\ RS-485 communication conversion circuit is an RS-422\ RS-485 chip of core power electronics technology, the RS-232 communication conversion circuit is an RS-232 chip of core power electronics technology, Inc., the 3.3V to 5V level conversion circuit is a photoelectric coupler of Shenzhen Aulund science and technology Limited, and the 5V to 3.3V level conversion circuit is a photoelectric coupler of Shenzhen Aulund science and technology Limited; the clock circuit is an active crystal oscillator of 25MHz and 50MHz of Shenzhen Yangxing technology Limited company.
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| Application Number | Priority Date | Filing Date | Title |
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| CN202110743195.9A CN113541765A (en) | 2021-07-01 | 2021-07-01 | General monitoring circuit for satellite ground station channel product |
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| Application Number | Priority Date | Filing Date | Title |
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| CN202110743195.9A CN113541765A (en) | 2021-07-01 | 2021-07-01 | General monitoring circuit for satellite ground station channel product |
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Application publication date: 20211022 |