CN100561242C - The recognition methods of receiving card and correlated communication equipment - Google Patents
The recognition methods of receiving card and correlated communication equipment Download PDFInfo
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- CN100561242C CN100561242C CNB2007101987684A CN200710198768A CN100561242C CN 100561242 C CN100561242 C CN 100561242C CN B2007101987684 A CNB2007101987684 A CN B2007101987684A CN 200710198768 A CN200710198768 A CN 200710198768A CN 100561242 C CN100561242 C CN 100561242C
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- 1pps signal
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Abstract
The embodiment of the invention relates to the communications field, a kind of recognition methods of receiving card and relevant communication facilities are provided, by the 1PPS signal pins of each GPS/GLONASS receiving card being introduced logical block such as EPLD or FPGA unit respectively, the 1PPS signal has or not on the described logical block detection receiving card socket, and, identify described receiving card according to the corresponding relation of 1PPS signal and 1PPS signal pins and described receiving card.Can discern receiving card fast, it is also quite convenient to produce maintain and replace, does not also need repeatedly adaptive and trial, has simplified the software design flow process.
Description
Technical field
The present invention relates to the communications field, particularly a kind of recognition methods of receiving card and correlated communication equipment.
Background technology
In existing communication system such as core net, BITS (Building Integrated Timing Supply), CDMA (code division multiple address communication system), GSM (global system for mobile communications), WCDMA (wideband code division multiplex (MUX) access), WiMAX (micro-wave access global inter communication), LTE (Long Term Evolution), UMB (ultra broadband mobile communication) equipment, Global Positioning System (GPS) (GPS, Global Positioning System) and GPS (Global Position System) (GLONASS, GLObal NAvigation Satellite System) have a wide range of applications.It can be used as communication system equipment the high accuracy clock source is provided, and in the exact time synchronization application process, GPS and GLONASS system occupy critical role in wireless communication system.
What use in the base station communication system is the User Part of Global Positioning System (GPS) or GPS (Global Position System), and it comprises source antenna, feeder line, lightning arrester, receiving card, introduces respectively below:
GPS and GLONASS antenna are active antenna, and the former is operated in L1 wave band (1.575Ghz), and the latter supports two wave bands simultaneously, comprise the gps signal (1.575Ghz) and the GLONASS signal (1.602-1.611Ghz) of L1 wave band.The two all built-in narrow band filter and LNA (low noise amplifier).Feeder line adopts physical blowing polyacetylene insulating radio frequency coaxial cable, transmits the working power of radiofrequency signal and antenna.Machine top and each antenna feeder arrester of far-end are used for outdoor lightning protection.
Receiving card has two kinds of GPS receiving card (claim not only single star card) and GPS/GLONASS receiving cards (but also claiming the double star card).Single star card is only supported gps system, and the double star card is supported two kinds of satellite navigation systems simultaneously.The realization principle of the two is similar: comprise RF (radio frequency unit), IF (IF processing unit), DM (data module) etc.Single star card generally has at least 8 parallel channels, can follow the tracks of 8 satellites simultaneously.The double star card has 20 receiving cables.
The producer that existing market manufactures and designs GPS receiving card and GPS/GLONASS receiving card is a lot, because Market competition, the speed that receiving card updates and stopping production is eliminated is very fast.In order effectively to avoid risk, in the clock system design of communication facilities, often wanting compatible design 2-3 family even the receiving card more than 5 families on the same circuit board.A plurality of receiving card compatibilities are not difficult on hardware is realized, but system will solve the receiving card identification problem.Because the receiving card that different manufacturers is produced, its configuration management and communication information interface are different, and software will be done different adaptive.
Receiving card is a little buckle generally speaking, and referring to Fig. 1, its most important signaling interface is 1PPS (pulse per second (PPS), 1 Pulse Per Second) signaling interface and a serial ports.Generally speaking, 1PPS is TTL (transistor-transistor logic) level, and serial ports Transistor-Transistor Logic level arranged RS232 (serial communication interface) level also arranged.Serial ports mainly transmits configuration management information, calendar astrology information etc.
The 1PPS signal pins of all receiving card buckles is by same circuit series connection, insert logical block, that is: EPLD (erasable programmable logic device (PLD)) or FPGA (FPGA) unit 10, the general compatible receiving card of socket veneer can be above 8 kinds, can indicate the type of receiving card with the toggle switch of a 4bit, before equipment dispatches from the factory, by toggle switch 18 dial-up is toggled it to the appropriate location according to the receiving card type, and the dial-up value is sent to CPU 12 by EPLD or FPGA unit 10, also can directly the dial-up value be hung on the universaling I/O port of CPU 12 and report.CPU 12 just can determine it is the receiving card of which kind of type according to the dial-up value.After CPU 12 identifies the receiving card type, just can carry out smoothly the configuration driven of receiving card.
In process of the present invention, the inventor finds that there is following shortcoming at least in the prior art:
The toggle switch crash rate is higher, and it is artificial manual intervention that receiving card is discerned, and produces the maintain and replace trouble, and automaticity is low, makes mistakes easily.
Another technical scheme also is provided in the prior art, and referring to Fig. 2, this technical scheme is to remove toggle switch fully.Because different receiving card has unique serial ports configuration frame format, unique configuration management message, the type that software attempts just can matching receiving card by the traversal iteration of limited number of time (type of compatible receiving card is limited).
In process of the present invention, the inventor finds that there is following shortcoming at least in the prior art:
The software algorithm relative complex need repeatedly travel through iteration and attempt, thereby recognition speed is slow, and efficient is low.
Summary of the invention
The embodiment of the invention provides a kind of recognition methods of receiving card and relevant communication facilities, the type of quick identification receiving card.
The recognition methods of the receiving card that the embodiment of the invention provided is achieved through the following technical solutions with the embodiment of relevant communication facilities:
A kind of recognition methods of receiving card, described recognition methods comprises:
The 1PPS signal pins of all receiving card sockets is introduced logical block;
Described logical block detects having or not of 1PPS signal on the receiving card socket, and according to the corresponding relation of 1PPS signal and 1PPS signal pins and described receiving card, identifies described receiving card.
The embodiment of the invention also provides a kind of communication facilities, comprises receiving card socket, logical block, and the 1PPS signal pins of all receiving card sockets is introduced described logical block respectively; Described logical block is used to detect having or not of 1PPS signal on the receiving card socket, and the corresponding relation according to 1PPS signal and 1PPS signal pins and described receiving card identifies described receiving card.
The embodiment of the invention provides a kind of recognition methods of receiving card and relevant communication facilities, by being introduced logical block respectively, the 1PPS signal pins of each receiving card detects, according to the corresponding relation of 1PPS signal pins and described receiving card, identify described receiving card.Can quick identification receiving card type, it is also quite convenient to produce maintain and replace, and software does not need repeatedly adaptive yet and attempts, and has simplified the software design flow process.
Description of drawings
A kind of structural representation of discerning the communication facilities of receiving card that Fig. 1 provides for prior art;
The another kind that Fig. 2 provides for prior art is discerned the structural representation of the communication facilities of receiving card;
Fig. 3 is the structural representation of the communication facilities of embodiment of the invention identification receiving card;
Fig. 4 is the process flow diagram of the method for embodiment of the invention identification receiving card.
Embodiment
In general, certain equipment is limited in the type of the GPS/GLONASS receiving card that following period of time can be supported, is subject to base areas at least, can not support unlimited many GPS/GLONASS receiving card.Such as: common cdma base station system can be supported 6 kinds of GPS/GLONASS receiving cards at present.For base station system: which it can determine self to support plant GPS/GLONASS receiving card according to the information of the type of the receiving card of preserving, and only can insert a kind of receiving card on the synchronization base plate, and it is any receiving card that base station system can not recognize the end.As: the receiving card A of delivery in 2006, but by 2007, receiving card A was because commercial affairs and technical reason have changed receiving card B into.But in a period of time, the delivery of receiving card must be to be confined in the scope of the receiving card of above-mentioned base station system support.For example: base station system is supported receiving card A, B, C, D, E, and delivery must be a kind of of receiving card A, B, C, D, E.Though which base station system can determine to support plant receiving card, can not determine that the receiving card that is inserted in now on the plate is any receiving card.This just needs base station system to discern specifically is any receiving card.
Base station system is to obtain and discern receiving card by the register that reads the logical block the inside.Prior art is to realize that by the state of toggle switch control register register shows the type information of receiving card, and for example: receiving card A is represented in dial-up set 0001, and receiving card B is represented in dial-up set 0101, or the like.Also have a kind of mode to be: base station system is according to different receiving card, and its configuration and status message are unique characteristics, and by making repeated attempts and the iteration traversal, identifying is any receiving card, causes the software design complexity like this.
The embodiment of the invention provides a kind of recognition methods of receiving card and relevant communication facilities, detect by the 1PPS signal pins of each receiving card is introduced logical block respectively, automatically identify receiving card and the information of receiving card is preserved by storer by logical block.Logical block can have multiple, is that example describes with EPLD or FPGA unit in the present embodiment.This method can quick identification receiving card type, and it is also quite convenient to produce maintain and replace, and software does not need repeatedly adaptive yet and attempts, and has simplified the software design flow process.
Describe the recognition methods and relevant communication facilities of the receiving card that the embodiment of the invention provides in detail below in conjunction with accompanying drawing.
Fig. 3 is the structural representation of the communication facilities of embodiment of the invention identification receiving card; Referring to this figure, the communication facilities of this identification receiving card comprises: logical block such as EPLD or FPGA unit 30, and CPU32 is connected with EPLD or FPGA unit 30 by time serial ports 34, and clock processing module 31 receives the 1PPS signal of EPLD or FPGA unit 30.Wherein:
EPLD or FPGA unit 30 are used for the detection of 1PPS, and the set register is indicated the 1PPS state of each road receiving card, and select available 1PPS signal to pass to clock module; The time serial ports 34 of available GPS/GLONASS receiving card is connected to CPU.
The time serial ports 33 of GPS/GLONASS receiving card is used for transmitting initializes configuration information, astrology calendar information etc.
Receiving card socket 35, GPS/GLONASS receiving card is generally the buckle form, is connected to base plate by the receiving card socket 35 on the base plate.
Receiving card socket 35 has a plurality of, the receiving card that each receiving card socket is corresponding different, and these receiving cards can be the differences of type, also can be the difference of version.The corresponding relation of described 1PPS signal pins and described receiving card is predefined, can be stored in EPLD or FPGA unit 30 registers the inside, also can preestablish with other forms such as circuit.Each receiving card is bought when coming from suppliers, and corresponding on the base plate of communication facilities has a receiving card socket 35 of monopolizing, and the shape and the pinout of the receiving card socket 35 that different receiving card occupies are all inequality.The most important signaling interface of receiving card has 1PPS signal pins and serial ports.Because on the communication facilities base plate, synchronization only can be inserted with a receiving card, each 1PPS signal pins definition is different, the socket of each 1PPS signal pins correspondence is inserted corresponding receiving card, so EPLD or FPGA unit 30 at any time only can receive 1 1PPS signal, perhaps receive card failure and can not receive 1PPS at all owing to snapping.Utilize this characteristics, the 1PPS signal pins of all receiving card sockets 35 is introduced EPLD or FPGA unit 30 respectively; Then receiving card is inserted corresponding receiving card socket 35, the 1PPS signal has or not on EPLD or the FPGA unit 30 detection receiving card sockets 35.
If EPLD or FPGA unit 30 detect the 1PPS signal is arranged, then can identify the type or the version of described receiving card according to the corresponding relation of 1PPS signal and 1PPS signal pins and described receiving card; If described EPLD or FPGA unit 30 do not detect the 1PPS signal, then be judged as the receiving card fault.
The embodiment of the invention also provides a kind of method that is used to discern receiving card, and referring to Fig. 4, the method comprising the steps of:
40, the 1PPS signal pins of all receiving card sockets is introduced logical block such as EPLD or FPGA unit respectively.The receiving card socket has a plurality of, the receiving card that each receiving card socket is corresponding different, and the corresponding relation of described 1PPS signal pins and described receiving card is predefined.
41, described logical block detects having or not of 1PPS signal on the receiving card socket.Described logical block detects the 1PPS signal, then according to the corresponding relation of 1PPS signal pins and described receiving card, identifies described receiving card; If described logical block does not detect described 1PPS signal, then judge described receiving card fault.
Receiving card is single star card of GPS or GPS/GLONASS double star card.By the 1PPS signal pins of each GPS/GLONASS receiving card being introduced EPLD respectively or the FPGA unit detects, type or the version that can judge receiving card from having or not of 1PPS signal, can quick identification receiving card, it is also quite convenient to produce maintain and replace, software does not need repeatedly adaptive yet and attempts, and has simplified the software design flow process.
More than to a kind of method and correlated communication equipment of discerning receiving card that the embodiment of the invention provided, be described in detail, for one of ordinary skill in the art, thought according to the embodiment of the invention, part in specific embodiments and applications all can change, in sum, the content of this instructions embodiment should not be construed as limitation of the present invention.
Claims (10)
1, a kind of recognition methods of receiving card is characterized in that, described recognition methods comprises:
The 1PPS signal pins of all receiving card sockets is introduced logical block;
Described logical block detects having or not of 1PPS signal on the receiving card socket, and according to the corresponding relation of 1PPS signal and 1PPS signal pins and described receiving card, identifies described receiving card.
2, the recognition methods of receiving card as claimed in claim 1, it is characterized in that described logical block detects having or not of 1PPS signal on the receiving card socket, and according to the corresponding relation of 1PPS signal and 1PPS signal pins and described receiving card, identify described receiving card, specifically comprise:
Described logical block detects the 1PPS signal, and then the corresponding relation according to described 1PPS signal and 1PPS signal pins and described receiving card identifies described receiving card; If described logical block does not detect described 1PPS signal, then described receiving card fault.
3, the recognition methods of receiving card as claimed in claim 1 or 2 is characterized in that, described receiving card is single star card of GPS or GPS/GLONASS double star card.
4, the recognition methods of receiving card as claimed in claim 1 or 2 is characterized in that, described receiving card socket has a plurality of, the receiving card that each receiving card socket is corresponding different, and the corresponding relation of described 1PPS signal pins and described receiving card is predefined.
5, the recognition methods of receiving card as claimed in claim 1 or 2 is characterized in that, described logical block is EPLD unit or FPGA unit.
6, a kind of communication facilities is characterized in that, comprises receiving card socket, logical block, and the 1PPS signal pins of all receiving card sockets is introduced described logical block respectively; Described logical block is used to detect having or not of 1PPS signal on the receiving card socket, and the corresponding relation according to 1PPS signal and 1PPS signal pins and described receiving card identifies described receiving card.
7, communication facilities as claimed in claim 6 is characterized in that, it is characterized in that, described logical block has the 1PPS signal if detect, and then according to the corresponding relation of 1PPS signal pins and described receiving card, identifies described receiving card; If described logical block does not detect the 1PPS signal, then described receiving card fault.
As claim 6 or 7 described communication facilitiess, it is characterized in that 8, described receiving card is single star card of GPS or GPS/GLONASS double star card.
As claim 6 or 7 described communication facilitiess, it is characterized in that 9, described receiving card socket has a plurality of, the receiving card that each receiving card socket is corresponding dissimilar, the corresponding relation of described 1PPS signal pins and described receiving card is predefined.
As claim 6 or 7 described communication facilitiess, it is characterized in that 10, described logical block is EPLD unit or FPGA unit.
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| Application Number | Priority Date | Filing Date | Title |
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| CNB2007101987684A CN100561242C (en) | 2007-12-12 | 2007-12-12 | The recognition methods of receiving card and correlated communication equipment |
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| CNB2007101987684A CN100561242C (en) | 2007-12-12 | 2007-12-12 | The recognition methods of receiving card and correlated communication equipment |
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| CN101196548A CN101196548A (en) | 2008-06-11 |
| CN100561242C true CN100561242C (en) | 2009-11-18 |
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| CN108260200A (en) * | 2018-02-27 | 2018-07-06 | 广州钟鼎木林网络技术有限公司 | The method and system that a kind of more synchronisation sources synchronize |
| CN111881073B (en) * | 2020-07-31 | 2022-06-03 | 卡莱特云科技股份有限公司 | Method and device for making FPGA compatible with various hardware and electronic equipment |
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