CN103414616B - The four-way optical fiber mark frequency module of soft or hard intersection switching can be realized based on industry ethernet - Google Patents
The four-way optical fiber mark frequency module of soft or hard intersection switching can be realized based on industry ethernet Download PDFInfo
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- CN103414616B CN103414616B CN201310293964.5A CN201310293964A CN103414616B CN 103414616 B CN103414616 B CN 103414616B CN 201310293964 A CN201310293964 A CN 201310293964A CN 103414616 B CN103414616 B CN 103414616B
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- 239000013307 optical fiber Substances 0.000 title claims abstract description 18
- 238000004891 communication Methods 0.000 claims abstract description 10
- 239000013078 crystal Substances 0.000 claims description 6
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- 230000003287 optical effect Effects 0.000 claims description 5
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- 238000012546 transfer Methods 0.000 abstract description 7
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Abstract
nullThe present invention provides a kind of four-way optical fiber mark frequency module that can realize soft or hard intersection switching based on industry ethernet，Including power module、Power splitter、4 photoelectric switching circuits、1 PPC chip、1 fpga chip、4 sram chips、2 FLASH chip、2 Ethernet chips、1 RS232 interface chip、Radio-frequency (RF) switch chip and two panels LVDS exchange chip，The power splitter that wherein electric power source pair of module is above-mentioned、Photoelectric switching circuit、PPC chip、Fpga chip、Sram chip、FLASH chip、Ethernet chip、RS232 interface chip、Radio-frequency (RF) switch chip and LVDS exchange chip are powered,Fpga chip、Sram chip、FLASH chip、Ethernet chip、RS232 interface chip、Radio-frequency (RF) switch chip and LVDS exchange chip are all connected with above-mentioned PPC chip.The present invention can use FPGA or PPC chip realize respectively LVDS soft, firmly exchange, and and main control module between use industry ethernet form, there is transfer rate high, the features such as communication reliability is good.
Description
Technical field
The invention belongs to electronic circuit design field, and soft or hard can be realized in particular to one based on industry ethernet and intersect and cut
The four-way optical fiber mark frequency module changed.
Background technology
Existing mark frequency module typically provides only a road radiofrequency signal, to provide the mark frequency signal on four tunnels, then needs four pieces of mark frequencies
Module, module is many, takes up room many.Send simultaneously because multi-band communication systems needs to transfer the signal of telecommunication of digital intermediate frequency to optical signal
To distant transmitter, conventional photoelectric conversion module only has the photoelectric converting function on a road, it is necessary to four such opto-electronic conversion moulds
Block, there is also a fairly large number of problem.
Summary of the invention
Present invention aim at providing a kind of and have the advantages such as long transmission distance, transfer rate height, good in anti-interference performance based on
Industry ethernet can realize the four-way optical fiber mark frequency module of soft or hard intersection switching.
For reaching above-mentioned purpose, the present invention proposes a kind of four-way optical fiber mark that can realize soft or hard intersection switching based on industry ethernet
Frequency module, including power module, power splitter, 4 photoelectric switching circuits, 1 PPC chip, 1 fpga chip, 4
Sram chip, 2 FLASH chip, 2 Ethernet chips, 1 RS232 interface chip, radio-frequency (RF) switch chip and
Two panels LVDS exchange chip, power splitter that wherein electric power source pair of module is above-mentioned, 4 photoelectric switching circuits, 1 PPC chip, 1
Individual fpga chip, 4 sram chips, 2 FLASH chip, 2 Ethernet chips, 1 RS232 interface chip,
Radio-frequency (RF) switch chip and two panels LVDS exchange chip are powered, 1 fpga chip, 4 sram chips, 2 FLASH chip,
2 Ethernet chips, 1 RS232 interface chip, radio-frequency (RF) switch chip and two panels LVDS exchange chip are all connected with
The PPC chip stated；
Wherein, PPC chip is by the outside LVDS level signal of radio-frequency (RF) switch input or internal crystal oscillator source, by radio-frequency (RF) switch chip
Carry out mark frequency signal behavior, and use power splitter distribution after marking frequency signal, to be respectively supplied to data intermediate frequency module and the FPGA of outside
Circuit, PPC chip is responsible for controlling the internal each chip of management, and 2 too network interface chips realize external ethernet communication and string respectively
Port communications, 2 FLASH chip connect the operation programs being responsible for preserving PPC, just add electrically activate time, PPC passes through Flash core
Sheet leads into Vxworks operating system, and SRAM is for preserving the data in PPC chip processing procedure.Fpga chip realizes number
The soft switch of word intermediate frequency LVDS signal, is then converted to light by the digital medium-frequency signal of each passage by 4 photoelectric switching circuits and believes
Number it is sent to far-end RF module by optical fiber.
Further, wherein the model of PPC chip be MPC8280, the model of FPGA circuitry be EP2SGX30,4 SRAM cores
The model of sheet is K4S511632, the model of 2 FLASH chip is S29GL512N10F, the type of 2 Ethernet chips
Number for LXT971AL and H1102, the model that model is PE4259 and two panels LVDS exchange chip of radio-frequency (RF) switch chip it is
DS10CP154。
In sum, the present invention uses software radio thought, uses PPC and FPGA to coordinate, except using FPGA to realize LVDS
Soft switch, it is possible to realized the hard exchange of different LVDS signal by PPC chip controls, thus in realizing between different passage
The flexible exchange of frequency evidence.And using industry ethernet form between main control module, transfer rate is high, and communication reliability is good.
Software can be realized loaded by bus, machine need not be opened, so having software programmable flexibly, convenient, flat
Sliding upgrade function.
Accompanying drawing explanation
Fig. 1 is the inside and outside theory diagram connected of embodiment of the present invention four-way optical fiber mark frequency module.
Fig. 2 is the concrete schematic diagram of the four-way optical fiber mark frequency module of the embodiment of the present invention.
Detailed description of the invention
In order to know more about the technology contents of the present invention, especially exemplified by specific embodiment and coordinate institute's accompanying drawings to be described as follows.
As it is shown in figure 1, four-way optical fiber mark frequency module is by industry ethernet and master control system communication, outside 4 road ifd modules
Digital signal be transferred to four-way optical fiber mark frequency module by LVDS level, become light by after 4 tunnel opto-electronic conversion therein
Signal.Optical fiber mark frequency module is connected with 4 road radio-frequency modules of distant transmitter by optical fiber and transmits optical signal.
Fig. 2 is the concrete schematic diagram of the four-way optical fiber mark frequency module of the embodiment of the present invention.Soft or hard can be realized based on industry ethernet
The four-way optical fiber mark frequency module of switching of intersecting include power module, power splitter, 4 photoelectric switching circuits, 1 PPC chip,
1 fpga chip, 4 sram chips, 2 FLASH chip, 2 Ethernet chips, 1 RS232 interface core
Sheet, radio-frequency (RF) switch chip and two panels LVDS exchange chip, have a long transmission distance, and transfer rate is high, good in anti-interference performance excellent
Point.
Power splitter that wherein electric power source pair of module is above-mentioned, 4 photoelectric switching circuits, 1 PPC chip, 1 fpga chip, 4
Sram chip, 2 FLASH chip, 2 Ethernet chips, 1 RS232 interface chip, radio-frequency (RF) switch chip and
Two panels LVDS exchange chip is powered, 1 fpga chip, 4 sram chips, 2 FLASH chip, 2 Ethernet interfaces
Chip, 1 RS232 interface chip and radio-frequency (RF) switch chip and two panels LVDS exchange chip are all connected with above-mentioned PPC chip.
Wherein, PPC chip, by the outside LVDS level signal of radio-frequency (RF) switch input or internal crystal oscillator source, is carried out by radio-frequency (RF) switch chip
Mark frequency signal behavior, and use power splitter distribution after marking frequency signal, to be respectively supplied to data intermediate frequency module and the FPGA circuitry of outside,
PPC chip is responsible for controlling the internal each chip of management, and 2 too network interface chip realizes external ethernet communication respectively and serial ports leads to
Letter, 2 FLASH chip connect the operation programs being responsible for preserving PPC, just add electrically activate time, PPC is drawn by Flash chip
Leading entrance Vxworks operating system, SRAM is for preserving the data in PPC chip processing procedure.Fpga chip realizes in numeral
Frequently the soft switch of LVDS signal, is then converted to optical signal by the digital medium-frequency signal of each passage by 4 photoelectric switching circuits and leads to
Cross optical fiber and be sent to far-end RF module.
Further, wherein the model of PPC chip be MPC8280, the model of FPGA circuitry be EP2SGX30,4 SRAM cores
The model of sheet is K4S511632, the model of 2 FLASH chip is S29GL512N10F, the type of 2 Ethernet chips
Number for LXT971AL and H1102, the model that model is PE4259 and two panels LVDS exchange chip of radio-frequency (RF) switch chip it is
DS10CP154。
Present invention achieves the purpose providing unified high accurate clock signal for 4 outside IF process modules, signal source is
The high stable crystal oscillator of inside modules, it is also possible to be from outside standard frequency source.This module is by four outsides simultaneously
The intermediate frequency LVDS signal of data intermediate frequency module is converted to optical signal, is then passed to external radio frequency module at a distance.And this module is used
Software radio thought, uses PPC and FPGA to coordinate, except using FPGA to realize the soft switch of LVDS, it is possible to pass through PPC
Chip controls realizes the hard exchange of different LVDS signal, can complete the soft or hard intersection switching of 4 paths LVDS signals, thus
Realize the flexible of the intermediate frequency data between different passage to exchange.And use industry ethernet form between main control module, permissible
Reaching 20Km, have long transmission distance, transfer rate is high, the advantage of good in anti-interference performance.And transfer rate is high, communication reliability
Good, it is possible to achieve software is loaded by bus, need not open machine, so having software programmable flexibly, convenient,
Smooth upgrade function.
1, the source of intermediate frequency LVDS signal, this module can realize the soft switch of digital intermediate frequency LVDS signal and hard exchange, its
Middle use FPGA realizes the soft switch of LVDS signal, realizes LVDS signal by PPC chip controls DS10CP154
Hard exchange.When realizing LVDS signal soft switch, FPGA uses
The standard frequency source of crystal oscillator source or outside provides unified clock signal.
2, soft switch and hard exchange implement process
As depicted in figs. 1 and 2, PPC chip controls LVDS exchange chip and fpga chip respectively to 4 road LVDS signals
Swap.LVDS exchange chip plays the effect of hard exchange, two panels LVDS exchange chip respectively according to control signal S00, S01,
S10, S11, S20, S21, S30, S31, to four roads LVDS differential signal OP1 (being made up of OP_TX1, OP_RX1 etc.),
OP2 (being made up of OP_TX2, OP_RX2 etc.), OP3 (being made up of OP_TX3, OP_RX3 etc.), OP4 (by OP_TX4,
OP_RX4 etc. form) configure and exchange.LVDS signal after exchange be first via MF1 signal (by MF_TX1,
MF_RX1 etc. form), the second road MF2 signal (being made up of MF_TX2, MF_RX2 etc.), the 3rd road MF3 signal (by
MF_TX3, MF_RX3 etc. form), the 4th road MF4 signal (being made up of MF_TX3, MF_RX3 etc.).
Before and after LVDS exchange chip control signal and exchange, four road LVDS signal corresponding relations are shown in Table 1.
Table 1
Fpga chip plays the effect of soft switch, fpga chip respectively according to PPC control signal DQ9B, DQ7B, DQ5B,
Four road LVDS signals are configured and exchange by DQ3B, DQ1B.Four road LVDS signals pair before and after control signal and exchange
Should be related to and be shown in Table 2.
Although the present invention is disclosed above with preferred embodiment, so it is not limited to the present invention.The technical field of the invention
Middle tool usually intellectual, without departing from the spirit and scope of the present invention, when being used for a variety of modifications and variations.Therefore, originally
The protection domain of invention is when being as the criterion depending on those as defined in claim.
Claims (1)
- null1. the four-way optical fiber mark frequency module that can realize soft or hard intersection switching based on industry ethernet，It is characterized in that，Including: power module、Power splitter、4 photoelectric switching circuits、1 PPC chip、1 fpga chip、4 sram chips、2 FLASH chip、2 Ethernet chips、1 RS232 interface chip、Radio-frequency (RF) switch chip and two panels LVDS exchange chip，The power splitter that wherein electric power source pair of module is above-mentioned、4 photoelectric switching circuits、1 PPC chip、1 fpga chip、4 sram chips、2 FLASH chip、2 Ethernet chips、1 RS232 interface chip、Radio-frequency (RF) switch chip and two panels LVDS exchange chip are powered，1 fpga chip、4 sram chips、2 FLASH chip、2 Ethernet chips、1 RS232 interface chip、Radio-frequency (RF) switch chip and two panels LVDS exchange chip are all connected with above-mentioned PPC chip；PPC chip is by the outside LVDS level signal of radio-frequency (RF) switch input or internal crystal oscillator source, mark frequency signal behavior is carried out by radio-frequency (RF) switch chip, and after using power splitter distribution mark frequency signal, it is respectively supplied to data intermediate frequency module and the FPGA circuitry of outside, PPC chip is responsible for controlling the internal each chip of management, 2 too network interface chips realize the ethernet communication with master control system and serial communication respectively, 2 FLASH chip connect the operation program being responsible for preserving PPC, just add electrically activate time, PPC chip leads into Vxworks operating system by FLASH chip, SRAM is for preserving the data in PPC chip processing procedure；Fpga chip realizes the soft switch of digital intermediate frequency LVDS signal, then by 4 photoelectric switching circuits, the digital medium-frequency signal of each passage is converted to optical signal and is sent to far-end RF module by optical fiber；Four road LVDS signals according to PPC control signal DQ9B, DQ7B, DQ5B, DQ3B, DQ1B, are configured and exchange by fpga chip respectively；Wherein the model of PPC chip be MPC8280, the model of fpga chip be EP2SGX30, the model of 4 sram chips be K4S511632, the model of 2 FLASH chip be S29GL512N10F, the model of 2 Ethernet chips be LXT971AL and H1102, the model that model is PE4259 and two panels LVDS exchange chip of radio-frequency (RF) switch chip be DS10CP154；Use fpga chip to realize the soft switch of LVDS signal, realized the hard exchange of LVDS signal by PPC chip controls LVDS exchange chip DS10CP154；When realizing LVDS signal soft switch, the standard frequency source of FPGA employing crystal oscillator source or outside provides unified clock signal；PPC chip controls LVDS exchange chip and fpga chip respectively and swaps 4 road LVDS signals；LVDS exchange chip plays the effect of hard exchange.
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| CN103763001B (en) * | 2014-01-07 | 2016-01-20 | 熊猫电子集团有限公司 | Based on the shortwave transceiving digital signals treatment circuit of cpci bus |
| CN109240960B (en) * | 2018-10-26 | 2023-11-24 | 天津光电通信技术有限公司 | Exchange board circuit based on VPX architecture and implementation method thereof |
| CN110661687B (en) * | 2019-08-14 | 2021-11-05 | 熊猫电子集团有限公司 | Full-communication double-bus exchange platform |
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| CN102420618A (en) * | 2011-12-28 | 2012-04-18 | 熊猫电子集团有限公司 | Short-wave four-channel transmitter based on space-time coding |
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| US20100060423A1 (en) * | 2008-09-05 | 2010-03-11 | Intermec Technologies Corporation | Radio frequency identification (RFID) reader with multiple receive channels |
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|---|---|---|---|---|
| CN102420618A (en) * | 2011-12-28 | 2012-04-18 | 熊猫电子集团有限公司 | Short-wave four-channel transmitter based on space-time coding |
| CN202424733U (en) * | 2011-12-28 | 2012-09-05 | 熊猫电子集团有限公司 | Space-time coding-based short-wave digital signal processing module |
| CN102780503A (en) * | 2012-06-30 | 2012-11-14 | 熊猫电子集团有限公司 | Audio and data forwarding device with multiple transmission means based on compact peripheral component interconnect (CPCI) bus |
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