CN102611625A - Parameter data server, parameter data transmission method and data transmission system - Google Patents
Parameter data server, parameter data transmission method and data transmission system Download PDFInfo
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Abstract
The invention discloses a parameter data server which comprises a data receiving module, a pre-processing module, a standard data output module and a data pool; the data receiving module is used for receiving parameter data and caching the same to a receiving buffer, and then the pre-processing module is started; the pre-processing module is used for analyzing the parameter data which is cached in the receiving buffer, and writing the parameter data into the data pool in a queue data structure; and the standard data output module is used for sequentially outputting the parameter data in the queue data structure in the data pool according to the standard of an object linking and embedding for process control (OPC) interface. The invention also discloses a parameter data transmission method and a data transmission system. According to the invention, multiple types of serial parameter data acquisition equipment can be accessed to a client terminal conveniently.
Description
Technical field
Computer communication technology involved in the present invention, particularly a kind of supplemental characteristic server, supplemental characteristic transmission method and data transmission system.
Background technology
The data acquisition equipment that is used for the perception field data, the output parameter data that have, the output text data that has, the output image data that also has (like infrared light, visible light, X-ray, ultrasonic wave and fault imaging etc.).
Text data and view data are as flow data, and be bigger than common supplemental characteristic amount, normally utilizes multi-medium data interface equipment transmission such as video, and this can consume long-range bandwidth resources and on-the-spot valuable processing resource.
Data acquisition equipment is usually through industrial physical serial interface (like RS-232, RS-485, RS-422 etc.) output parameter data.Serial communication protocol is general communication interfaces such as computer, instrument and meter equipment.The notion of serial communication is very simple, and byte is sent and received in serial ports step-by-step (bit), can when using single line to send data, receive data with other single line, and can realize telecommunication.But serial communication is slower than the parallel communications by byte (byte).
Find out the scene in accident, the perception data amount of short-term burst is big, and the environment dynamic change is big; Perceptual parameters is of a great variety, and the various disunity of data acquisition equipment kind of interface (like RS-232, RS-485; RS-422; USB, Ethernet interface etc.), and require deployment fast, quick startup, quickly networking or the like; Conventional data transmission system and method can't satisfy accident and find out on-the-spot transfer of data requirement owing to can't realize unified access, the standardization output of the data acquisition equipment of a large amount of dissimilar interfaces.
OPC (OLE for Process Control) is an industrial standard.OPC has set up one group and has met the interface specification that Industry Control requires, as long as the server that has the OPC interface is provided, the data access client of any support OPC interface all can be carried out data access.
Summary of the invention
The technical problem that the present invention will solve is to make the convenient client that inserts of polytype data of serial port parameters collecting device.
For solving the problems of the technologies described above, the invention provides a kind of supplemental characteristic server, it comprises data reception module, pretreatment module, normal data output module, data pool;
Said data reception module is used to receive supplemental characteristic and is cached to the reception buffering area, starts pretreatment module then;
Said pretreatment module is used for resolving the supplemental characteristic that is buffered in the reception buffering area, and the data structure of said supplemental characteristic with formation write in the said data pool;
Said normal data output module is used for the supplemental characteristic of the queue data structure of data pool is exported with the OPC interface standard successively.
Said data reception module can comprise Socket server receiver module;
Said Socket server receiver module receives supplemental characteristic and stores said reception buffer area into through the socket communication mode; And utilize verification to check data are carried out the supplemental characteristic of verification, inspection reception to the supplemental characteristic that receives integrality; Confirm the validity of the supplemental characteristic of reception; If the supplemental characteristic that receives is effective, then this supplemental characteristic that receives is outputed to display, start pretreatment module then.
Said supplemental characteristic server can also comprise main control module;
Said main control module is used for the startup of control data receiver module and normal data output module, and generates the operating state that finger daemon is kept watch on these two modules.
Said supplemental characteristic server can also comprise the history data store module;
Said normal data output module is used for supplemental characteristic with the queue data structure of data pool with the output of OPC interface standard, and starts the history data store module;
The history data store module, be used for by the normal data output module with the supplemental characteristic of OPC interface standard output as history data store.
Said data reception module, can supplemental characteristic is cached to receive buffering area after, the supplemental characteristic of buffer memory is outputed to display.
Said data reception module can block receiving buffering area simultaneously when starting pretreatment module, and refresh the reception buffer area blanking time by setting, and stores the supplemental characteristic that newly receives into the reception buffer area.
Said pretreatment module can lock to said data pool when in said data pool, writing said supplemental characteristic with queue data structure, to forbid other thread data pool is carried out read-write operation;
Said normal data output module can lock to said data pool when from said data pool, reading supplemental characteristic, to forbid other thread data pool is carried out read-write operation.
For solving the problems of the technologies described above, the present invention also provides a kind of supplemental characteristic transmission method, and it may further comprise the steps:
One. utilize a data reception module, receive supplemental characteristic and be cached to the reception buffering area, start pretreatment module then;
Two. utilize a pretreatment module, resolve and be buffered in the supplemental characteristic that receives in the buffering area, the data structure of said supplemental characteristic with formation write in the said data pool;
Three. utilize a normal data output module, the supplemental characteristic of the queue data structure in the data pool is exported with the OPC interface standard successively.
Said data reception module can comprise Socket server receiver module;
Said Socket server receiver module; Receive supplemental characteristic and store said reception buffer area into through the socket communication mode; And utilize verification to check data the supplemental characteristic that receives is carried out the integrality of the supplemental characteristic that verification, inspection receive, the validity of the supplemental characteristic of confirming to receive is if the supplemental characteristic that receives is effective; Then this supplemental characteristic that receives is outputed to display, start pretreatment module then.
Can utilize a main control module, the startup of control data receiver module and normal data output module, and generate the operating state that finger daemon is kept watch on these two modules.
Said normal data output module is exported the supplemental characteristic of the queue data structure in the data pool, and can be started a history data store module with the OPC interface standard;
Said history data store module is with being got up as history data store by the supplemental characteristic of normal data output module with the output of OPC interface standard.
Said data reception module, can supplemental characteristic is cached to receive buffering area after, the supplemental characteristic of buffer memory is outputed to display.
Said data reception module can block receiving buffering area simultaneously when starting pretreatment module, and refresh the reception buffer area blanking time by setting, and stores the supplemental characteristic that newly receives into the reception buffer area.
Said pretreatment module can lock to said data pool when in said data pool, writing said supplemental characteristic with queue data structure, to forbid other thread data pool is carried out read-write operation;
Said normal data output module can lock to said data pool when from said data pool, reading supplemental characteristic, to forbid other thread data pool is carried out read-write operation.
For solving the problems of the technologies described above; The present invention also provides a kind of data transmission system, and it comprises that one or more supplemental characteristic collecting devices, one or more serial ports change ethernet interface module, supplemental characteristic switch, supplemental characteristic server, one or more flow data collecting device, flow data switch, stream data servers, OPC data access client;
Said supplemental characteristic collecting device is used for through serial ports output parameter data;
Said serial ports changes ethernet interface module, an end same parameter data acquisition equipment serial communication, and the other end is communicated by letter with said supplemental characteristic switch Ethernet interface, and the supplemental characteristic that supplemental characteristic collecting device serial ports is exported outputs to said supplemental characteristic switch;
Said supplemental characteristic switch is used for the supplemental characteristic that each serial ports commentaries on classics ethernet interface module transmits is sent to said supplemental characteristic server;
Said supplemental characteristic server is used to receive the supplemental characteristic that said supplemental characteristic switch transmits, and supplemental characteristic is outputed to said OPC data access client with the OPC interface standard;
Said flow data collecting device is used for the output stream data;
Said flow data switch is used for the flow data of said flow data collecting device output is sent to said stream data servers;
Said stream data servers is used for receiving stream-oriented data and flow data is outputed to said OPC data access client with the OPC interface standard.
Said flow data can be pictorial data or text data;
Said serial ports can be RS-232, RS-485 or RS-422;
Each serial ports changes ethernet interface module can insert said serial data switch with wired or wireless Ethernet interface mode.
The present invention; Utilize the supplemental characteristic server; Receive the supplemental characteristic of supplemental characteristic collecting device output and supplemental characteristic is outputed to said OPC data access client with the OPC interface standard, make polytype data of serial port parameters collecting device can insert client easily; And can utilize stream data servers; Flow datas such as the view data of receiving stream-oriented data collecting device output, text data; And flow data outputed to OPC data access client with the OPC interface standard; Find out flow datas such as on-the-spot supplemental characteristic and text data, view data from incident thereby utilize OPC data access client to receive simultaneously; Can realize unified access, the standardization output of the data acquisition equipment of a large amount of dissimilar interfaces, satisfy accident and find out on-the-spot transfer of data requirement.
Description of drawings
In order to be illustrated more clearly in technical scheme of the present invention; Do simple the introduction in the face of the accompanying drawing that will use required for the present invention down; Obviously, the accompanying drawing in describing below only is some embodiments of the present invention, for those of ordinary skills; Under the prerequisite of not paying creative work, can also obtain other accompanying drawing according to these accompanying drawings.
Fig. 1 is supplemental characteristic server one an embodiment sketch map of the present invention;
Fig. 2 is that data transmission system of the present invention is unified the embodiment sketch map.
Embodiment
To combine the accompanying drawing in the embodiment of the invention below, the technical scheme in the embodiment of the invention is carried out clear, intactly description, obviously, described embodiment only is the present invention's part embodiment, rather than whole embodiment.Should be appreciated that preferred embodiment described herein only is used for explanation and explains the present invention, and be not used in qualification the present invention.And under the situation of not conflicting, embodiment and the characteristic among the embodiment among the present invention can make up each other.Based on the embodiment among the present invention, the every other embodiment that those of ordinary skills obtained belongs to the scope that the present invention protects.
Embodiment one
As shown in Figure 1, the supplemental characteristic server comprises main control module, data reception module, pretreatment module, normal data output module, data pool and history data store module.
Main control module is used for the startup of control data receiver module and normal data output module, and generates the operating state that finger daemon is kept watch on these two modules;
Data reception module is used to receive supplemental characteristic and is cached to the reception buffering area, starts pretreatment module then, starts pretreatment module then, and can the supplemental characteristic of buffer memory be outputed to display;
Data reception module can comprise Socket server receiver module, and Socket server receiver module receives supplemental characteristic and is cached to the reception buffering area through the socket communication mode; Utilize verification to check data the supplemental characteristic that receives is carried out verification; And the integrality of the supplemental characteristic of inspection reception, thereby the validity of the supplemental characteristic that affirmation receives, if the supplemental characteristic that receives is effective; Then this supplemental characteristic that receives is outputed to display, start pretreatment module then; Here socket communication all adopts byte (unsigned char) type to realize, when data are 0, thinks the end of string problem to prevent particular protocol.
Pretreatment module is used for resolving the supplemental characteristic that is buffered in the reception buffering area, and the data structure of said supplemental characteristic with formation write in the said data pool;
The normal data output module is used for the supplemental characteristic of the queue data structure of data pool is exported with the OPC interface standard successively, and starts the history data store module;
The history data store module, be used for by the normal data output module with the supplemental characteristic of OPC interface standard output as history data store.
The supplemental characteristic server of embodiment one for the transmission method of supplemental characteristic is:
One. utilize main control module, the startup of control data receiver module and normal data output module, and generate the operating state that finger daemon is kept watch on these two modules;
Two. utilize data reception module, receive supplemental characteristic and be cached to a reception buffer area,, then start pretreatment module if confirm that through data check and integrity checking the supplemental characteristic that receives is effective;
Three. utilize pretreatment module, resolve the supplemental characteristic of buffer memory in the said reception buffer area, the supplemental characteristic of buffer memory in the said reception buffer area data structure with formation is write in the data pool;
Four. utilize the normal data output module, the supplemental characteristic of the data structure of the formation in the data pool is exported with the OPC interface standard successively.
Data reception module can block receiving buffering area when starting pretreatment module simultaneously, attacks to prevent DNS (Domain Name System, domain name system), guarantees the complete output of data; And can refresh the reception buffer area blanking time by setting, the supplemental characteristic that newly receives stored into receive buffer area to guarantee that the data of when the bursty data amount is big, exporting are latest datas.
For preventing the shared resource collision problem, when pretreatment module writes said supplemental characteristic with queue data structure in said data pool, said data pool is locked, to forbid other thread data pool is carried out read-write operation; Said normal data output module when from said data pool, reading supplemental characteristic, locks to said data pool, to forbid other thread data pool is carried out read-write operation.
The history data store module, the historical data that the scene is obtained deposits in the document in real time, has made things convenient for reviewing of data on the other hand, has improved the robustness of total system.
Embodiment two
As shown in Figure 2; Utilize the supplemental characteristic server of embodiment one to make up data transmission system, data transmission system comprises that one or more supplemental characteristic collecting devices, one or more serial ports change ethernet interface module, supplemental characteristic switch, supplemental characteristic server, one or more flow data collecting device, flow data switch, stream data servers, OPC data access client;
Said supplemental characteristic collecting device, be used for through serial ports (like RS-232, RS-485, RS-422) output parameter data;
Said serial ports changes ethernet interface module; Be used for serial ports (like RS-232; RS-485, RS-422) supplemental characteristic converts standard physical Ethernet interface supplemental characteristic to, an end same parameter data acquisition equipment serial communication; The other end is communicated by letter with said supplemental characteristic switch Ethernet interface, and the supplemental characteristic that supplemental characteristic collecting device serial ports is exported outputs to said supplemental characteristic switch; Each serial ports changes ethernet interface module with wired (like RJ-45) or wireless (wifi, wimax 3G) wait the Ethernet interface mode to insert said supplemental characteristic switch;
Said supplemental characteristic switch is used for the supplemental characteristic that each serial ports commentaries on classics ethernet interface module transmits is sent to said supplemental characteristic server;
Said supplemental characteristic server is used to receive the supplemental characteristic that said supplemental characteristic switch transmits, and supplemental characteristic is outputed to said OPC data access client with the OPC interface standard;
Said flow data collecting device is used for flow datas such as output image data or text data; The flow data collecting device can be all kinds of image capture devices (like infrared, visible light, X-ray, ultrasonic wave and fault imaging or the like), text generation equipment etc.
Said flow data switch is used for the flow data of said flow data collecting device output is sent to said stream data servers;
Said stream data servers is used to receive flow datas such as view data, text data and flow data is outputed to said OPC data access client with the OPC interface standard.
Each serial ports changes between the ethernet interface module same parameter data switching exchane; And between each flow data collecting device cocurrent flow data switching exchane; Can communicate by letter through wired (like RJ-45) or wireless more popular Ethernet interface modes such as (like wifi, wimax, 3G etc.), make this data transmission system have good physical extension property.
The data transmission method of the data transmission system of embodiment two is; Utilize stream data servers; Flow data such as the view data of receiving stream-oriented data collecting device output, text data also outputs to OPC data access client with flow data with the OPC interface standard; Utilize the supplemental characteristic server, receive the supplemental characteristic of supplemental characteristic collecting device output and supplemental characteristic is outputed to said OPC data access client with the OPC interface standard; Flow datas such as the view data of various types of flow data collecting device, text data can send to stream data servers through the flow data switch; The supplemental characteristic of various types of supplemental characteristic collecting device serial ports output can send to the supplemental characteristic server through the supplemental characteristic switch; Make the Various types of data collecting device connect fast, unified input; The data transmission method of this data transmission system; Incident being found out flow data such as view data that on-site data gathering equipment gathers, text data and supplemental characteristic all exports with the standard OPC data format; Find out flow datas such as on-the-spot supplemental characteristic and text data, view data from incident thereby utilize OPC data access client to receive simultaneously; Can realize unified access, the standardization output of the data acquisition equipment of a large amount of dissimilar interfaces, satisfy accident and find out on-the-spot transfer of data requirement.
The above is merely preferred embodiment of the present invention, and is in order to restriction the present invention, not all within spirit of the present invention and principle, any modification of being made, is equal to replacement, improvement etc., all should be included within the scope that the present invention protects.
Claims (16)
1. a supplemental characteristic server is characterized in that, comprises data reception module, pretreatment module, normal data output module, data pool;
Said data reception module is used to receive supplemental characteristic and is cached to the reception buffering area, starts pretreatment module then;
Said pretreatment module is used for resolving the supplemental characteristic that is buffered in the reception buffering area, and the data structure of said supplemental characteristic with formation write in the said data pool;
Said normal data output module is used for the supplemental characteristic of the queue data structure of data pool is exported with the OPC interface standard successively.
2. supplemental characteristic server according to claim 1 is characterized in that,
Said data reception module comprises Socket server receiver module;
Said Socket server receiver module receives supplemental characteristic and stores said reception buffer area into through the socket communication mode; And utilize verification to check data are carried out the supplemental characteristic of verification, inspection reception to the supplemental characteristic that receives integrality; Confirm the validity of the supplemental characteristic of reception; If the supplemental characteristic that receives is effective, then this supplemental characteristic that receives is outputed to display, start pretreatment module then.
3. supplemental characteristic server according to claim 1 is characterized in that,
Said supplemental characteristic server also comprises main control module;
Said main control module is used for the startup of control data receiver module and normal data output module, and generates the operating state that finger daemon is kept watch on these two modules.
4. supplemental characteristic server according to claim 1 is characterized in that,
Said supplemental characteristic server also comprises the history data store module;
Said normal data output module is used for supplemental characteristic with the queue data structure of data pool with the output of OPC interface standard, and starts the history data store module;
The history data store module, be used for by the normal data output module with the supplemental characteristic of OPC interface standard output as history data store.
5. supplemental characteristic server according to claim 1 is characterized in that,
Said data reception module, supplemental characteristic is cached to receive buffering area after, the supplemental characteristic of buffer memory is outputed to display.
6. supplemental characteristic server according to claim 1 is characterized in that,
Said data reception module blocks receiving buffering area simultaneously when starting pretreatment module, and refreshes the reception buffer area blanking time by setting, and stores the supplemental characteristic that newly receives into the reception buffer area.
7. supplemental characteristic server according to claim 1 is characterized in that,
Said pretreatment module when in said data pool, writing said supplemental characteristic with queue data structure, locks to said data pool, to forbid other thread data pool is carried out read-write operation;
Said normal data output module when from said data pool, reading supplemental characteristic, locks to said data pool, to forbid other thread data pool is carried out read-write operation.
8. a supplemental characteristic transmission method is characterized in that, may further comprise the steps:
One. utilize a data reception module, receive supplemental characteristic and be cached to the reception buffering area, start pretreatment module then;
Two. utilize a pretreatment module, resolve and be buffered in the supplemental characteristic that receives in the buffering area, the data structure of said supplemental characteristic with formation write in the said data pool;
Three. utilize a normal data output module, the supplemental characteristic of the queue data structure in the data pool is exported with the OPC interface standard successively.
9. supplemental characteristic transmission method according to claim 8 is characterized in that,
Said data reception module comprises Socket server receiver module;
Said Socket server receiver module; Receive supplemental characteristic and store said reception buffer area into through the socket communication mode; And utilize verification to check data the supplemental characteristic that receives is carried out the integrality of the supplemental characteristic that verification, inspection receive, the validity of the supplemental characteristic of confirming to receive is if the supplemental characteristic that receives is effective; Then this supplemental characteristic that receives is outputed to display, start pretreatment module then.
10. supplemental characteristic transmission method according to claim 8 is characterized in that,
Utilize a main control module, the startup of control data receiver module and normal data output module, and generate the operating state that finger daemon is kept watch on these two modules.
11. supplemental characteristic transmission method according to claim 8 is characterized in that,
Said normal data output module is exported the supplemental characteristic of the queue data structure in the data pool, and is started a history data store module with the OPC interface standard;
Said history data store module is with being got up as history data store by the supplemental characteristic of normal data output module with the output of OPC interface standard.
12. supplemental characteristic transmission method according to claim 8 is characterized in that,
Said data reception module, supplemental characteristic is cached to receive buffering area after, the supplemental characteristic of buffer memory is outputed to display.
13. supplemental characteristic transmission method according to claim 8 is characterized in that,
Said data reception module blocks receiving buffering area simultaneously when starting pretreatment module, and refreshes the reception buffer area blanking time by setting, and stores the supplemental characteristic that newly receives into the reception buffer area.
14. supplemental characteristic transmission method according to claim 8 is characterized in that,
Said pretreatment module when in said data pool, writing said supplemental characteristic with queue data structure, locks to said data pool, to forbid other thread data pool is carried out read-write operation;
Said normal data output module when from said data pool, reading supplemental characteristic, locks to said data pool, to forbid other thread data pool is carried out read-write operation.
15. one kind comprises each supplemental characteristic data in server transmission system of claim 1 to 7; It is characterized in that data transmission system comprises that also one or more supplemental characteristic collecting devices, one or more serial ports change ethernet interface module, supplemental characteristic switch, one or more flow data collecting device, flow data switch, stream data servers, OPC data access client;
Said supplemental characteristic collecting device is used for through serial ports output parameter data;
Said serial ports changes ethernet interface module, an end same parameter data acquisition equipment serial communication, and the other end is communicated by letter with said supplemental characteristic switch Ethernet interface, and the supplemental characteristic that supplemental characteristic collecting device serial ports is exported outputs to said supplemental characteristic switch;
Said supplemental characteristic switch is used for the supplemental characteristic that each serial ports commentaries on classics ethernet interface module transmits is sent to said supplemental characteristic server;
Said supplemental characteristic server is used to receive the supplemental characteristic that said supplemental characteristic switch transmits, and supplemental characteristic is outputed to said OPC data access client with the OPC interface standard;
Said flow data collecting device is used for the output stream data;
Said flow data switch is used for the flow data of said flow data collecting device output is sent to said stream data servers;
Said stream data servers is used for receiving stream-oriented data and flow data is outputed to said OPC data access client with the OPC interface standard.
16. data transmission system according to claim 15 is characterized in that,
Said flow data is pictorial data or text data;
Said serial ports is RS-232, RS-485 or RS-422;
Each serial ports changes ethernet interface module and inserts said supplemental characteristic switch with wired or wireless Ethernet interface mode.
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