CN106856464A - A kind of sync symbols detecting system - Google Patents
A kind of sync symbols detecting system Download PDFInfo
- Publication number
- CN106856464A CN106856464A CN201510908623.3A CN201510908623A CN106856464A CN 106856464 A CN106856464 A CN 106856464A CN 201510908623 A CN201510908623 A CN 201510908623A CN 106856464 A CN106856464 A CN 106856464A
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- China
- Prior art keywords
- module
- sync symbols
- detecting system
- control logic
- comparison process
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L27/00—Modulated-carrier systems
- H04L27/26—Systems using multi-frequency codes
- H04L27/2601—Multicarrier modulation systems
- H04L27/2647—Arrangements specific to the receiver only
- H04L27/2655—Synchronisation arrangements
- H04L27/2668—Details of algorithms
- H04L27/2673—Details of algorithms characterised by synchronisation parameters
- H04L27/2675—Pilot or known symbols
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L43/00—Arrangements for monitoring or testing data switching networks
- H04L43/08—Monitoring or testing based on specific metrics, e.g. QoS, energy consumption or environmental parameters
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- Engineering & Computer Science (AREA)
- Computer Networks & Wireless Communication (AREA)
- Signal Processing (AREA)
- Environmental & Geological Engineering (AREA)
- Communication Control (AREA)
Abstract
The present invention relates to field of circuit technology, more particularly to a kind of sync symbols detecting system, the sync symbols for being included the pending data that acquisition module is gathered by comparison process module are compared with the default standard synchronisation code element of setup module, if both are identical, then indicate that receiving device and sending ending equipment have established synchronous contact, receiving device can carry out subsequent operation to the pending data；Wherein, the setup module can be register or external control end, to realize the programmable of standard synchronisation code element；The modification of standard synchronisation symbol value according to actual needs, can be realized by external control, without setting extra detection circuit in receiving device.
Description
Technical field
The present invention relates to field of circuit technology, more particularly to a kind of sync symbols detecting system.
Background technology
In computer network osi model, for the correct transmitting-receiving of information, typically can be in thing
Pre-determined synchronization code element in the communication protocol of layer is managed, to enable receiving terminal according to symbol synchronization pulse
Or synchronizing information is worked asynchronously with transmitting terminal ensureing it.Sync symbols can be such as a succession of bag
Include the sequence (for example, 00011101) of " 0 " and/or " 1 ".
In actual application, receiving terminal needs preset same with what above-mentioned pre-determined synchronization code element was matched
Step symbol detection circuit, to carry out detection matching to the data for receiving, as long as that is, receiving terminal is in profit
Detect that circuit is verified to receiving the sync symbols included in data with above-mentioned sync symbols
And after being matched with above-mentioned pre-determined synchronization code element, data of the receiving terminal just to receiving are carried out subsequently
Treatment.
But, due to different agreements, its default sync symbols can be different, and different
Application when, its default sync symbols would also vary from, and work as the inspection of previous sync symbols
Slowdown monitoring circuit is only capable of detecting matched sync symbols, that is, is needing to preset different
Sync symbols (such as different agreements and/or different applications) when being detected, it is necessary to
In receiving terminal, multiple sync symbols detection circuits are set, it is equal to ensure each default sync symbols
Can correctly be detected；So, will cause that the circuit on receiving terminal is extremely complex, and work as
Preceding sync detection circuit is non-programmable circuit so that circuit allows for work(at the beginning of design
Can fix (when i.e. sequence of symhols is embodied in circuit design drawing, cannot be more once complete design
Change), and then cause flexibly cannot subsequently be improved circuit, and these are all this areas
Technical staff is undesirable.
The content of the invention
For above-mentioned problem, the invention discloses a kind of sync symbols detecting system, should
For the sync symbols detection in data transfer, the detecting system includes：
Sending ending equipment, for sending the pending data comprising the sync symbols；
Processing module, is connected by communication link with the sending ending equipment；
Acquisition module, is connected with the communication link, to gather what the sending ending equipment sent
The sync symbols in the pending data；
Setup module, is preset with standard synchronisation code element；
Comparison process module, is connected with the setup module and the acquisition module respectively, will
The sync symbols of collection are compared with the default standard synchronisation code element；And
Control logic module, is connected with the comparison process module and the processing module respectively,
After judging whether that output is opened with the comparative result information exported according to the comparison process module
The control command of continuous data processor is to the processing module；
Wherein, the processing module according to receive the control command to the pending data
Carry out treatment operation.
Above-mentioned sync symbols detecting system, wherein, the setup module is register (REG)
Or control end.
Above-mentioned sync symbols detecting system, wherein, the control end is mobile terminal.
Above-mentioned sync symbols detecting system, wherein, the acquisition module is trigger.
Above-mentioned sync symbols detecting system, wherein, the acquisition module is triggered for D types
Device (DFF).
Above-mentioned sync symbols detecting system, wherein, the comparison process module is multiple including multichannel
With device (MUX).
Above-mentioned sync symbols detecting system, wherein, the comparison process module also includes anti-phase
Device.
Above-mentioned sync symbols detecting system, wherein, the control logic module includes judging mould
Block and control logic unit；
Wherein, the judge module connects with the comparison process module and the control logic unit
Connect, judged whether by described with the comparative result information exported according to the comparison process module
The output of control logic unit opens the control command of follow-up data processing routine to the treatment mould
Block.
Above-mentioned sync symbols detecting system, wherein, the judge module is and gate circuit.
Above-mentioned sync symbols detecting system, wherein, the control logic unit is control logic
Circuit.
The invention discloses a kind of sync symbols detecting system, will be gathered by comparison process module
Sync symbols and the default standard synchronisation of setup module that the pending data of module collection is included
Code element is compared, if both are identical, indicates that receiving device and sending ending equipment are built
Vertical to have got well synchronous contact, receiving device can carry out subsequent operation to the pending data；Its
In, the setup module can be register or external control end, to realize standard synchronisation code element
It is programmable；I.e. can be according to different agreements and/or different applications, by external control reality
The modification of existing standard synchronisation symbol value, without setting extra detection in receiving device
Circuit.
Brief description of the drawings
The detailed description made to non-limiting example with reference to the following drawings by reading, this hair
Bright and its feature, profile and advantage will become more apparent.The identical mark in whole accompanying drawings
Note indicates identical part.Accompanying drawing can be drawn to scale, it is preferred that emphasis is this hair is shown
Bright purport.
Fig. 1 is the structural representation of sync symbols detecting system in the embodiment of the present invention.
Fig. 2 is the schematic diagram of programmable sync symbols detection circuit in the embodiment of the present invention.
Specific embodiment
The present invention is further illustrated with specific embodiment below in conjunction with the accompanying drawings, but not
As restriction of the invention.
As shown in figure 1, the present embodiment is related to a kind of sync symbols detecting system, data are applied to
Sync symbols detection in transmission, the detecting system is included for sending treating comprising sync symbols
The sending ending equipment of processing data, the treatment mould being connected with sending ending equipment by communication link
Block and communication link are connected, with the synchronization in the pending data for gathering sending ending equipment transmission
The acquisition module of code element, the setup module for being preset with standard synchronisation code element, respectively with setup module
With acquisition module connection, the sync symbols of collection are compared with default standard synchronisation code element
Compared with comparison process module and be connected with comparison process module and processing module respectively, with basis
The comparative result information of comparison process module output judges whether that follow-up data treatment is opened in output
The control command of program to processing module control logic module；Wherein, the processing module according to
The control command of reception carries out treatment operation to pending data.
In a preferred embodiment of the invention, above-mentioned setup module is register (REG)
Or control end.
On this basis, further, above-mentioned control end is mobile terminal, and the mobile terminal can
Think panel computer (PAD).
In a preferred embodiment of the invention, above-mentioned acquisition module is trigger, the triggering
Device can be D type flip-flops (DFF).
In a preferred embodiment of the invention, above-mentioned comparison process module includes multiplexing
Device (MUX).
In a preferred embodiment of the invention, above-mentioned comparison process module also includes anti-phase
Device.
In a preferred embodiment of the invention, above-mentioned control logic module includes judge module
With control logic unit；
Wherein, above-mentioned judge module is connected with comparison process module and control logic unit, with root
The comparative result information exported according to comparison process module judges whether defeated by control logic unit
Go out to open the control command of follow-up data processing routine to processing module.
On this basis, further, above-mentioned judge module is and gate circuit that above-mentioned control is patrolled
It is control logic circuit to collect unit.
Specifically, sync symbols detecting system is by as shown in Figure 2 disclosed in the present embodiment
Programmable sync symbols detection circuit realiration, sync symbols detection circuit includes trigger
(acquisition module), phase inverter and multiplexer (comparison process module), NAND gate circuit (are sentenced
Disconnected module) and control logic circuit (control logic unit).
The sync symbols detect that the operation principle of circuit is：In clock by trigger to transmitting terminal
Sync symbols in the pending data comprising sync symbols that equipment sends are acquired and obtain
After sync symbols DA, by phase inverter and multiplexer by sync symbols DA and register
In default sync symbols REG_A be compared, when both DA and REG_A values are identical
When, output OA can be " 1 "；Output OB/OC/OD application identicals principle can be with
Obtain, just do not repeated herein；With gate circuit when OA/OB/OC/OD is " 1 "
When, Sync=1 is exported, indicate that detecting sync symbols (indicates that receiving terminal sets
Standby and sending ending equipment has established synchronous contact), receiving device can be to pending data
Carry out subsequent operation；Sync signals are sent to control logic circuit with gate circuit, after unlatching
Continuous data processor.
In sync symbols detection circuit, standard synchronisation code element there may be in REG,
Can directly be controlled by outside PAD, as long as can realize that standard synchronisation code element may be programmed.
To sum up, the invention discloses a kind of sync symbols detecting system, by comparison process module
The sync symbols that the pending data that acquisition module is gathered is included and the default mark of setup module
Plesiochronous code element is compared, if both are identical, indicates receiving device and transmitting terminal
Equipment has established synchronous contact, and receiving device can subsequently be grasped to the pending data
Make；Wherein, the setup module can be REG or control end, realize standard synchronisation code element
It is programmable；Can lead to according to actual needs (such as different agreements and/or different applications)
The modification that standard synchronisation symbol value is realized in external control is crossed, without setting volume in receiving terminal
Outer detection circuit.
It should be appreciated by those skilled in the art that those skilled in the art combine prior art and
Above-described embodiment can realize change case, will not be described here.Such change case has no effect on
Substance of the invention, will not be described here.
Presently preferred embodiments of the present invention is described above.It is to be appreciated that of the invention
Above-mentioned particular implementation is not limited to, wherein the equipment and structure that do not describe in detail to the greatest extent should
It is interpreted as being practiced with the common mode in this area；It is any to be familiar with those skilled in the art
Member, in the case where technical solution of the present invention ambit is not departed from, all using the method for the disclosure above
Many possible variations and modification are made to technical solution of the present invention with technology contents, or is revised as
The Equivalent embodiments of equivalent variations, this has no effect on substance of the invention.Therefore, it is every
Without departing from the content of technical solution of the present invention, according to technical spirit of the invention to above example
Any simple modification, equivalent variation and modification done, still fall within technical solution of the present invention guarantor
In the range of shield.
Claims (10)
1. a kind of sync symbols detecting system, is applied to the sync symbols detection in data transfer,
Characterized in that, the detecting system includes：
Sending ending equipment, for sending the pending data comprising the sync symbols；
Processing module, is connected by communication link with the sending ending equipment；
Acquisition module, is connected with the communication link, to gather what the sending ending equipment sent
The sync symbols in the pending data；
Setup module, is preset with standard synchronisation code element；
Comparison process module, is connected with the setup module and the acquisition module respectively, will
The sync symbols of collection are compared with the default standard synchronisation code element；And
Control logic module, is connected with the comparison process module and the processing module respectively,
After judging whether that output is opened with the comparative result information exported according to the comparison process module
The control command of continuous data processor is to the processing module；
Wherein, the processing module according to receive the control command to the pending data
Carry out treatment operation.
2. sync symbols detecting system as claimed in claim 1, it is characterised in that described to set
Module is put for register or control end.
3. sync symbols detecting system as claimed in claim 2, it is characterised in that the control
End processed is mobile terminal.
4. sync symbols detecting system as claimed in claim 2, it is characterised in that described to adopt
It is trigger to integrate module.
5. sync symbols detecting system as claimed in claim 4, it is characterised in that described to adopt
It is D type flip-flops to integrate module.
6. sync symbols detecting system as claimed in claim 4, it is characterised in that the ratio
Include multiplexer compared with processing module.
7. sync symbols detecting system as claimed in claim 6, it is characterised in that the ratio
Also include phase inverter compared with processing module.
8. programmable sync symbols as claimed in claim 1 detect circuit, it is characterised in that
The control logic module includes judge module and control logic unit；
Wherein, the judge module connects with the comparison process module and the control logic unit
Connect, judged whether by described with the comparative result information exported according to the comparison process module
The output of control logic unit opens the control command of follow-up data processing routine to the treatment mould
Block.
9. programmable sync symbols as claimed in claim 8 detect circuit, it is characterised in that
The judge module is and gate circuit.
10. programmable sync symbols as claimed in claim 8 detect circuit, and its feature exists
In the control logic unit is control logic circuit.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510908623.3A CN106856464A (en) | 2015-12-09 | 2015-12-09 | A kind of sync symbols detecting system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510908623.3A CN106856464A (en) | 2015-12-09 | 2015-12-09 | A kind of sync symbols detecting system |
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| Publication Number | Publication Date |
|---|---|
| CN106856464A true CN106856464A (en) | 2017-06-16 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
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| CN201510908623.3A Pending CN106856464A (en) | 2015-12-09 | 2015-12-09 | A kind of sync symbols detecting system |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108306702A (en) * | 2017-12-14 | 2018-07-20 | 上海玮舟微电子科技有限公司 | A kind of synchronous code detecting system |
| CN110519048A (en) * | 2019-07-31 | 2019-11-29 | 中国科学技术大学 | A kind of quantum information transmission method and system |
| CN113472871A (en) * | 2021-06-25 | 2021-10-01 | 中标慧安信息技术股份有限公司 | Block chain-based Internet of things data integrity judgment method and system |
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| EP0924911A1 (en) * | 1997-12-15 | 1999-06-23 | ABBPATENT GmbH | Multicarrier method of transmission on power distribution networks |
| CN1633066A (en) * | 2003-12-22 | 2005-06-29 | 中国电子科技集团公司第三十研究所 | A method for quick recovery of cipher synchronization for secure voice communication in mobile communication system |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108306702A (en) * | 2017-12-14 | 2018-07-20 | 上海玮舟微电子科技有限公司 | A kind of synchronous code detecting system |
| CN110519048A (en) * | 2019-07-31 | 2019-11-29 | 中国科学技术大学 | A kind of quantum information transmission method and system |
| CN113472871A (en) * | 2021-06-25 | 2021-10-01 | 中标慧安信息技术股份有限公司 | Block chain-based Internet of things data integrity judgment method and system |
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Application publication date: 20170616 |
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| RJ01 | Rejection of invention patent application after publication |