CN101692220A - Method for managing equipment numbers of distributed system - Google Patents
Method for managing equipment numbers of distributed system Download PDFInfo
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- CN101692220A CN101692220A CN200910193415A CN200910193415A CN101692220A CN 101692220 A CN101692220 A CN 101692220A CN 200910193415 A CN200910193415 A CN 200910193415A CN 200910193415 A CN200910193415 A CN 200910193415A CN 101692220 A CN101692220 A CN 101692220A
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- device number
- distributed system
- transport protocol
- equipment numbers
- data transport
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Abstract
The invention relates to the management of equipment numbers, and provides a method for managing the equipment numbers of a distributed system. The method comprises the following steps: connecting a plurality of slave plates in serial by a signal line, and connecting a master plate with the signal line; presetting a data transmission protocol for one-way transmission to allow the master plate to transmit data to the plurality of slave plates simultaneously according to the data transmission protocol; setting the equipment numbers on the master plate, packaging the equipment numbers according to the data transmission protocol, and transmitting the equipment numbers through the signal line; and analyzing the equipment numbers from the signal line by the slave plates according to the data transmission protocol and storing the equipment numbers. The technical scheme can save the chip I/O, reduce the number of back plate connectors and connecting line pins and save the PCB area and the line cost. The adopted data transmission protocol for the one-way transmission can reduce the error rate, ensure the reliability of data transmission, and support the unlimited scale of the distributed system.
Description
Technical field
The present invention relates to the device number management, be specifically related to a kind of method for managing equipment numbers of distributed system.
Background technology
Distributed system is meant a complete hardware device system, comprises a mainboard and polylith slave plate, connects by backboard or connecting line between them, and mainboard and slave plate are finished a function by bus.In the large scale system that a plurality of distributed systems are together in series, just need go to distinguish each different distributed system by device number.
At present, the method for device number configuration is by mainboard this machine equipment number to be set, and mainboard is connected with each slave plate by many signal wires, reads the level value that signal wire fixes by logical device and obtain device number when slave plate starts.As shown in Figure 1, Fig. 1 is the parallel connection diagram of mainboard and slave plate in the distributed system, because being connected between mainboard and the slave plate is to adopt the parallel relation that connects, can take many signal wires of backboard, can not make full use of resource.When the number of devices of expansion reached some, this method can be subjected to certain restriction, and made that the number of devices of expansion is restricted.
Summary of the invention
The objective of the invention is to, propose a kind of method for managing equipment numbers of distributed system, can make full use of backboard signal wire resource, and support that the number of devices of expansion is unrestricted.
The method for managing equipment numbers of the distributed system that the present invention proposes comprises:
Step S1, it is connected in series that described some slave plates are passed through a signal wire, and described mainboard is connected with this signal wire;
Step S2 sets in advance the Data Transport Protocol that is used for one-way transmission, makes described mainboard transfer data to described some slave plates simultaneously according to described Data Transport Protocol;
Step S3 is provided with device number at described mainboard, and described device number is packed according to described Data Transport Protocol, goes out from described signal wire transmits; Parse described device number and preserve from described signal wire according to described Data Transport Protocol by described slave plate.
The method for managing equipment numbers of the distributed system that the present invention proposes, by a signal wire that all slave plates are connected in series, mainboard and each slave plate communicate, thereby many signal wires have been replaced, made full use of the signal wire resource of backboard, the area of both having saved PCB has also been saved the cost of wire rod; And carry out one-way transmission according to the Data Transport Protocol that sets in advance, can support that the distributed system scale is unrestricted, support that promptly the number of devices of expansion is unrestricted.
Description of drawings
Fig. 1 is mainboard and the parallel connection diagram of slave plate in the distributed system;
Fig. 2 is the method for managing equipment numbers process flow diagram of distributed system;
Fig. 3 is mainboard and a slave plate synoptic diagram connected in series in the distributed system.
Embodiment
The mode that the present invention adopts single serial to handle solves the problem of existing distributed system device number management, has saved the space of connecting up on the backboard, also can make the number of devices of expansion unrestricted simultaneously.
Embodiment 1:
Present embodiment is described a kind of method for managing equipment numbers of distributed system, and distributed system comprises mainboard and some slave plates, and as shown in Figure 2, this method specifically comprises:
Step S1, it is connected in series that some slave plates are passed through a signal wire, and mainboard is connected with this signal wire.As shown in Figure 3, Fig. 3 is mainboard and a slave plate synoptic diagram connected in series in the distributed system.In Fig. 2, comprise some slave plates: slave plate 1, slave plate 2 and slave plate n; Mainboard inserts each slave plate simultaneously by a signal wire.The interface of all slave plates all is an open-drain, in use bus is added pull-up resistor, the scope of this pull-up resistor for 3k Ω to 6k Ω.
Step S2 sets in advance the Data Transport Protocol that is used for one-way transmission, makes mainboard transfer data to some slave plates simultaneously according to Data Transport Protocol.The parallel connection of prior art is changed into connected in series, do not do anyly the direct communication meeting being set occurring than high bit-error, reliability reduces.The present invention has defined the Data Transport Protocol of one-way transmission, carries out the one-way data transmission according to this agreement between mainboard and the slave plate.In the present embodiment, be used for the Data Transport Protocol of one-way transmission below the proposition: setting in advance 0～23 interval is the synchronous head part, and setting in advance 23～31 interval is the device number part, and setting in advance 31～39 interval is the end mark part.In the whole Data Transport Protocol, comprise 0～39 interval of 40bit altogether, this interval is divided into synchronous head, device number and three parts of end mark as requested.Wherein, in synchronous head part, being provided with in 0～7 interval needs 55 of transmission 16 systems, and being provided with in 7～15 interval needs 55 of transmission 16 systems, and the FF that needs transmission 16 systems is set in 15～23 intervals.In the device number part, the described device number that needs transmission is set.In the end mark part, the AA that needs transmission 16 systems is set.This Data Transport Protocol that present embodiment proposes is not limited to this, and this Data Transport Protocol according to proposing can reduce the bit error rate, guarantees reliability of data transmission.In Fig. 2, the device number waveform that indicates among the figure is the specific waveforms of transmitting on the hardware line, and this waveform has transmitted the information of device number.
Step S3 is provided with device number at mainboard, and device number is packed according to Data Transport Protocol, goes out from signal wire transmits; Parse device number and preserve from signal wire according to Data Transport Protocol by slave plate.After setting up device number, this device number of electro-detection on the mainboard, the mode of detection can be to detect the value of setting of precognition, for example Pei Zhi register or the like.This device number is packaged then goes out from signal wire transmits, and mainboard enters waiting status.After slave plate powers on, parse device number from signal wire, the process of parsing is carried out according to Data Transport Protocol.Slave plate is preserved the device number that parsing obtains then.Mainboard and all slave plates all belong to a distributed system, we can say that also mainboard and polylith slave plate all belong to same equipment, according to the method described above, transmit information by a signal wire, and each piece slave plate has all obtained identical device number.
Further optimization as the foregoing description, after step S3, also comprise step: change if detect device number, at least judge whether the device number that changes all is identical value continuous 3 times, if the result of continuous 3 judgements is identical value, think that then device number changes, parse the device number of change and preserve from signal wire according to Data Transport Protocol by slave plate; Otherwise, think that the device number of this change is misdata and abandons.Mainboard is for guaranteeing the real-time update of device number, needs periodically checkout equipment number, sees whether device number changes, and under the situation that device number changes, the device number that changes is sent on the signal wire.Slave plate is then constantly resolved from signal wire, find to resolve obtain a complete device number after, judge continuously then whether 3 these device numbers all are identical values, for preventing erroneous judgement, need to judge at least continuously 3 times, if that continuous 3 judgements obtain is different results, think that then wrong data also abandon these data; If continuous 3 judgements all are to obtain same device number, then slave plate is preserved the device number of this change, and when realizing that device number is modified, all slave plates can be synchronous.
The method for managing equipment numbers of the distributed system that the present invention proposes can be saved chip I/O, saves back panel connector and connecting line pin number, can also save PCB area and wire rod cost.And, can reduce the bit error rate owing to be used for the Data Transport Protocol of one-way transmission, and guarantee reliability of data transmission, support that the scale of distributed system is unrestricted.On ark 3000 processor products of prestige wound company, the technical scheme of having used the present invention to propose, the cascade number of support reaches 255 equipment.
Above-described embodiment of the present invention does not constitute the qualification to protection domain of the present invention.Any modification of being done within the spirit and principles in the present invention, be equal to and replace and improvement etc., all should be included within the claim protection domain of the present invention.
Claims (3)
1. the method for managing equipment numbers of a distributed system, described distributed system comprises mainboard and some slave plates, it is characterized in that, comprising:
Step S1, it is connected in series that described some slave plates are passed through a signal wire, and described mainboard is connected with this signal wire;
Step S2 sets in advance the Data Transport Protocol that is used for one-way transmission, makes described mainboard transfer data to described some slave plates simultaneously according to described Data Transport Protocol;
Step S3 is provided with device number at described mainboard, and described device number is packed according to described Data Transport Protocol, goes out from described signal wire transmits; Parse described device number and preserve from described signal wire according to described Data Transport Protocol by described slave plate.
2. the method for managing equipment numbers of distributed system according to claim 1, it is characterized in that, the process that sets in advance the Data Transport Protocol that is used for one-way transmission among the step S2 specifically comprises: at described Data Transport Protocol, setting in advance 0～23 interval is the synchronous head part, setting in advance 23～31 interval is the device number part, and setting in advance 31～39 interval is the end mark part; In described synchronous head part, being provided with in 0～7 interval needs 55 of transmission 16 systems, and being provided with in 7～15 interval needs 55 of transmission 16 systems, and the FF that needs transmission 16 systems is set in 15～23 intervals;
In described device number part, the described device number that needs transmission is set;
In described end mark part, the AA that needs transmission 16 systems is set.
3. the method for managing equipment numbers of distributed system according to claim 1 and 2, it is characterized in that, after step S3, also comprise step: change if detect described device number, at least judge whether the device number that changes all is identical value continuous 3 times, if the described continuous result who judges for 3 times is identical value, think that then device number changes, parse the device number of change and preserve from described signal wire according to described Data Transport Protocol by described slave plate; Otherwise, think that the device number of this change is misdata and abandons.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009101934154A CN101692220B (en) | 2009-10-28 | 2009-10-28 | Method for managing equipment numbers of distributed system |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009101934154A CN101692220B (en) | 2009-10-28 | 2009-10-28 | Method for managing equipment numbers of distributed system |
Publications (2)
| Publication Number | Publication Date |
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| CN101692220A true CN101692220A (en) | 2010-04-07 |
| CN101692220B CN101692220B (en) | 2012-05-09 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN2009101934154A Expired - Fee Related CN101692220B (en) | 2009-10-28 | 2009-10-28 | Method for managing equipment numbers of distributed system |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105488010A (en) * | 2016-01-06 | 2016-04-13 | 成都南瑞科能电气自动化有限公司 | Real-time synchronous interface protocol of backboard |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5640521A (en) * | 1992-06-17 | 1997-06-17 | Texas Instruments Incorporated | Addressable shadow port and protocol with remote I/O, contol and interrupt ports |
| CN100338845C (en) * | 2004-12-24 | 2007-09-19 | 上海协同科技股份有限公司 | Input / output module of inner communication through serial synchronous communication bus |
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2009
- 2009-10-28 CN CN2009101934154A patent/CN101692220B/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105488010A (en) * | 2016-01-06 | 2016-04-13 | 成都南瑞科能电气自动化有限公司 | Real-time synchronous interface protocol of backboard |
| CN105488010B (en) * | 2016-01-06 | 2018-11-23 | 东阳市前途工业设计有限公司 | A kind of backboard real-time synchronization interface protocol |
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| Publication number | Publication date |
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| CN101692220B (en) | 2012-05-09 |
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Address after: Kezhu road high tech Industrial Development Zone, Guangzhou city of Guangdong Province, No. 233 510670 Patentee after: VTRON GROUP Co.,Ltd. Address before: 510663 Guangzhou province high tech Industrial Development Zone, Guangdong, Cai road, No. 6, No. Patentee before: VTRON TECHNOLOGIES Ltd. |
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Effective date of registration: 20201125 Address after: No.1 Dongyue Road, Jiang'an Town, Rugao City, Nantong City, Jiangsu Province Patentee after: JIANGSU BEICHEN ENVIRONMENT SCIENCE & TECHNOLOGY Co.,Ltd. Address before: Unit 2414-2416, main building, no.371, Wushan Road, Tianhe District, Guangzhou City, Guangdong Province Patentee before: GUANGDONG GAOHANG INTELLECTUAL PROPERTY OPERATION Co.,Ltd. Effective date of registration: 20201125 Address after: Unit 2414-2416, main building, no.371, Wushan Road, Tianhe District, Guangzhou City, Guangdong Province Patentee after: GUANGDONG GAOHANG INTELLECTUAL PROPERTY OPERATION Co.,Ltd. Address before: Kezhu road high tech Industrial Development Zone, Guangzhou city of Guangdong Province, No. 233 510670 Patentee before: VTRON GROUP Co.,Ltd. |
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Granted publication date: 20120509 Termination date: 20211028 |