CN107018028B - Data acquisition monitoring system and data acquisition monitoring method based on CAN bus and OPC technology - Google Patents
Data acquisition monitoring system and data acquisition monitoring method based on CAN bus and OPC technology Download PDFInfo
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- CN107018028B CN107018028B CN201710371086.2A CN201710371086A CN107018028B CN 107018028 B CN107018028 B CN 107018028B CN 201710371086 A CN201710371086 A CN 201710371086A CN 107018028 B CN107018028 B CN 107018028B
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- 238000012544 monitoring process Methods 0.000 title claims abstract description 34
- 238000000034 method Methods 0.000 title claims abstract description 20
- 238000005516 engineering process Methods 0.000 title claims abstract description 13
- 238000001514 detection method Methods 0.000 claims abstract description 65
- 238000006243 chemical reaction Methods 0.000 claims abstract description 29
- 238000004891 communication Methods 0.000 claims abstract description 21
- 238000012545 processing Methods 0.000 claims abstract description 11
- 230000005540 biological transmission Effects 0.000 claims abstract description 8
- 238000012360 testing method Methods 0.000 claims description 12
- 230000001419 dependent effect Effects 0.000 claims description 3
- 238000009432 framing Methods 0.000 claims description 3
- 238000005259 measurement Methods 0.000 claims description 3
- 238000013480 data collection Methods 0.000 claims 1
- 238000012937 correction Methods 0.000 abstract description 3
- 230000003287 optical effect Effects 0.000 abstract description 3
- 238000007689 inspection Methods 0.000 description 3
- 230000007774 longterm Effects 0.000 description 2
- 238000007789 sealing Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000004886 process control Methods 0.000 description 1
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L41/00—Arrangements for maintenance, administration or management of data switching networks, e.g. of packet switching networks
- H04L41/04—Network management architectures or arrangements
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L41/00—Arrangements for maintenance, administration or management of data switching networks, e.g. of packet switching networks
- H04L41/06—Management of faults, events, alarms or notifications
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L67/00—Network arrangements or protocols for supporting network services or applications
- H04L67/01—Protocols
- H04L67/10—Protocols in which an application is distributed across nodes in the network
- H04L67/1095—Replication or mirroring of data, e.g. scheduling or transport for data synchronisation between network nodes
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Abstract
The invention discloses a data acquisition monitoring system and a data acquisition monitoring method based on a CAN bus and an OPC technology, wherein the system comprises an upper computer, and data conversion equipment connected with the upper computer through a network cable, wherein the data conversion equipment is connected with a plurality of detection devices through a CAN communication line, and the detection devices are connected with corresponding equipment to be detected; the method comprises the following steps: the upper computer receives the data processing of the frame; (II) the upper computer receives the data conversion of the frame; (III) debugging the detection device; (IV) the detection device operates. The invention provides a field data acquisition monitoring system suitable for industrial use, which is used for realizing the transmission of instructions and data between acquisition monitoring software and a detection device, acquiring equipment parameters to be monitored by using the detection device and sharing data (namely detection results) with other clients in an OPC (optical proximity correction) mode.
Description
Technical Field
The invention belongs to an industrial field data acquisition and monitoring system, and particularly relates to a data acquisition and monitoring system and method based on a CAN bus and an OPC technology.
Background
The industrial field data acquisition and monitoring generally adopts a mature industrial control configuration software, for example, a WinCC (window control center) and PLC combined mode, the architecture uses an internal communication protocol for communication, the cost is high (software authorization is purchased), certain limitations are provided, for example, the application of a wide CAN communication protocol CAN not directly perform data communication with the purchased industrial control software, a common solution is to adopt a OPC (OLE for process control) mode, the data formats of the two modes are different, and a data bridge needs to be built between a data acquisition end and the industrial control configuration software.
Disclosure of Invention
The present invention has been made to overcome the disadvantages of the prior art. The data acquisition monitoring system and the data acquisition monitoring method based on the CAN bus and the OPC technology are provided.
The technical scheme of the invention is as follows:
a data acquisition monitoring system based on CAN bus and OPC technology comprises an upper computer, a data conversion device connected with the upper computer through a network cable, wherein the data conversion device is connected with a plurality of detection devices through CAN communication lines, and the detection devices are connected with corresponding devices to be detected.
The upper computer is an industrial computer or an industrial controller.
The data conversion equipment adopts CANET-2E-U to realize data conversion and realize conversion between CAN2.0B format data and TCP format data.
The detection device adopts a measurement device in a CAN2.0B communication format, CAN set an address in a CAN communication network, realizes parameter detection of equipment to be detected, packages and transmits data according to the CAN2.0B format, and simultaneously receives and analyzes instruction data in the CAN2.0B format.
A data acquisition monitoring method of a data acquisition monitoring system based on CAN bus and OPC technology comprises the following steps:
data processing of upper computer received frame
Starting (i);
(ii) receiving a TCP packet;
(iii) framing 50 CAN frames in a TCP packet;
(iv) determining whether 50 frames of data have been processed, if yes, proceeding to step (viii), if not, proceeding to step (v);
(v) starting to analyze 1 frame of data;
(vi) judging whether the data is required according to the ID number contained in the CAN frame, if not, returning to the step (iv), and re-analyzing the CAN frame of the next frame; if the required data is judged, starting to process the data, and entering a step (vii);
(vii) according to the parameters required to be measured by the equipment to be measured, storing the acquired data according to each parameter, storing the data in the phase dependent variable, and returning to the step (iv) after the frame data is processed;
(viii) data processing of the received frame is ended;
(II) data conversion of the received frame by the host computer
(ix) beginning;
(x) obtaining a processed data variable;
(xi) Judging whether the data is the data required by the parameter A of the measuring equipment, if so, storing the data into a parameter A variable conforming to an OPC data format, transmitting the data to an OPC item for generating the parameter A through the variable, and entering a step (xii) after successful transmission; if not, continuing to judge whether the data required by the parameter B of the measuring equipment is met, sequentially judging, and if not, entering the step (xii);
(xii) The data conversion of the received frame is finished;
(III) debugging the detection device
(xiii) Starting;
(xiv) Registering OPC;
(xv) Inquiring basic information of the detection device, and acquiring an ID (identity) of the detection device and configuration information thereof so as to communicate;
(xvi) Performing software test setting according to the queried detection device information;
(xvii) Performing communication function tests according to the required requirements, including function requirement tests, error rates, frame loss rates, device operation stability and accuracy tests of measured data;
(xviii) The detection device is debugged;
(IV) operation of the detection device
(xix) Starting;
(xx) Registering OPC;
(xxi) Setting an ID number of a detection device to be communicated;
(xxii) Setting a command for inquiring data with the detection device;
(xxiii) Setting a time interval for inquiring data;
(xxiv) Running software, wherein the software sends a query instruction to the detection device according to a set time interval, receives data returned by the corresponding device, and processes the data;
(xxv) And (5) ending the operation.
The beneficial effects of the invention are as follows:
the invention provides a field data acquisition monitoring system suitable for industrial use, which is used for realizing the transmission of instructions and data between acquisition monitoring software and a detection device, acquiring equipment parameters to be monitored by using the detection device and sharing data (namely detection results) with other clients in an OPC (optical proximity correction) mode.
The detection device layer adopts a CAN communication network, CAN conveniently realize the expansion or the cutting of the number of the detection devices, and has strong universality; the CAN2.0B data format and the TCP data format are adopted between the detection device and the upper computer software, so that the expandability can be ensured, and the instantaneity and the reliability of data transmission can be ensured; the upper software converts the data into an OPC standard data format and uploads the OPC standard data format to the OPC server, so that the OPC server is convenient for sharing the data with other clients; the software operation is divided into two modes, so that the data acquisition and monitoring of the long-term operation of the detection device can be realized, and the inspection test, the on-line fault judgment and the replacement of the detection device can be realized.
Drawings
FIG. 1 is a schematic diagram of a hardware connection of the present invention;
FIG. 2 is a flow chart of data processing of a received frame in accordance with the present invention;
FIG. 3 is a flow chart of data conversion of a received frame according to the present invention;
FIG. 4 is a debug mode flow chart of the present invention;
fig. 5 is a flow chart of the mode of operation of the present invention.
Wherein:
1. the data conversion equipment of the upper computer 2,
3. the detection means 4 test the device to be tested.
Detailed Description
The data acquisition monitoring system and the data acquisition monitoring method based on the CAN bus and the OPC technology are described in detail below with reference to the accompanying drawings and the embodiment of the specification:
as shown in fig. 1, a data acquisition monitoring system based on a CAN bus and an OPC technology includes an upper computer 1, a data conversion device 2 connected with the upper computer 1 through a network cable, the data conversion device 2 is connected with a plurality of detection devices 3 through a CAN communication line, and the detection devices 3 are connected with corresponding devices 4 to be tested.
The upper computer 1 is an industrial computer or an industrial controller.
The data conversion equipment 2 adopts CANET-2E-U to realize data conversion and realize conversion between CAN2.0B format data and TCP format data.
The detection device 3 adopts a measurement device in a CAN2.0B communication format, CAN set an address in a CAN communication network, realizes parameter detection of equipment to be detected, packages and transmits data according to the CAN2.0B format, and simultaneously receives and analyzes instruction data in the CAN2.0B format.
The data acquisition process of the invention comprises the following steps:
the detecting device 3 is used for measuring relevant parameters of the device 4 to be detected, the obtained data are communicated with the data conversion device 2 in a CAN communication protocol mode, the data conversion device 2 packages the obtained CAN frame into a TCP data packet, the TCP data packet is uploaded to the upper computer 1 in a TCP data packet mode through Ethernet, and the upper computer 1 converts the received TCP data packet into a data sealing format which accords with an OPC standard and uploads the data sealing format to the OPC server for data sharing of other clients.
A data acquisition monitoring method of a data acquisition monitoring system based on CAN bus and OPC technology comprises the following steps:
and (I) the upper computer software receives the data processing of the frame, and the flow is shown in figure 2:
starting (S1);
(ii) receiving a TCP packet (S2);
(iii) framing (S3) 50 CAN frames in one TCP packet;
(iv) determining whether 50 frames of data have been processed, if yes, proceeding to step (viii), if not, proceeding to step (v) (S4);
(v) starting to analyze 1 frame data (S5);
(vi) judging whether the data is required according to the ID number contained in the CAN frame, if not, returning to the step (iv), and re-analyzing the CAN frame of the next frame; if the required data is determined, starting data processing to enter step (vii) (S6);
(vii) according to the parameters required to be measured by the equipment to be measured, storing the acquired data according to each parameter, storing the data in the phase dependent variable, and returning to the step (iv) after the frame data is processed (S7);
(viii) data processing of the received frame is ended (S8);
the data format stored by the processing in step (i) does not conform to the data format of the standard OPC package, and thus data conversion is required.
(II) data conversion of the upper computer receiving frame, the flow is as shown in FIG. 3:
(ix) starting (S9);
(x) acquiring the processed data variable (S10);
(xi) Judging whether the data is the data required by the parameter A of the measuring equipment, if so, storing the data into a parameter A variable conforming to an OPC data format, transmitting the data to an OPC item for generating the parameter A through the variable, and entering a step (xii) after successful transmission; if not, continuing to judge whether the data required by the parameter B of the measuring equipment is met, sequentially judging, and if not, entering the step (xii) (S11);
(xii) The data conversion of the received frame ends (S12);
before the detection device operates. The software needs to be debugged according to the flow shown in fig. 4, namely, a software debugging mode; in the mode, the detection device can be subjected to downlink communication inspection and check, on-line fault judgment and replacement, and the specific steps are as follows:
(III) debugging the detection device, wherein the flow is shown in FIG. 4:
(xiii) Start (S13);
(xiv) Registering OPC (S14);
(xv) Inquiring basic information of the detection device, and acquiring an ID (identity) of the detection device and configuration information thereof so as to communicate (S15);
(xvi) Performing software test setting according to the queried detection device information (S16);
(xvii) Performing communication function tests according to the required requirements, including function requirement tests, error rates, frame loss rates, device operation stability and accuracy tests of measured data (S17);
(xviii) Detecting the end of device debugging (S18);
fig. 5 is a flowchart of a software operation mode, in which data can be communicated with the detection device for a long time and shared to other clients, and the specific steps are as follows:
(IV) the detection device operates, and the flow is shown in FIG. 5:
(xix) Start (S19);
(xx) Registering OPC (S20);
(xxi) Setting an ID number of a detection device to be communicated (S21);
(xxii) Setting a command for inquiring data with the detection device (S22);
(xxiii) Setting a time interval of the query data (S23);
(xxiv) Running software, wherein the software sends a query instruction to the detection device according to a set time interval, receives data returned by the corresponding device, and processes the data (S24);
(xxv) The operation ends (S25).
The invention provides a field data acquisition monitoring system suitable for industrial use, which is used for realizing the transmission of instructions and data between acquisition monitoring software and a detection device, acquiring equipment parameters to be monitored by using the detection device and sharing data (namely detection results) with other clients in an OPC (optical proximity correction) mode.
The detection device layer adopts a CAN communication network, CAN conveniently realize the expansion or the cutting of the number of the detection devices, and has strong universality; the specific structure of the detection device is shown in the patent number 201720314540.6; the CAN2.0B data format and the TCP data format are adopted between the detection device and the upper computer software, so that the expandability can be ensured, and the instantaneity and the reliability of data transmission can be ensured; the upper software converts the data into an OPC standard data format and uploads the OPC standard data format to the OPC server, so that the OPC server is convenient for sharing the data with other clients; the software operation is divided into two modes, so that the data acquisition and monitoring of the long-term operation of the detection device can be realized, and the inspection test, the on-line fault judgment and the replacement of the detection device can be realized.
Claims (3)
1. A collection monitoring method of a data collection monitoring system based on CAN bus and OPC technology is characterized in that:
the system comprises a data acquisition monitoring system, wherein the data acquisition monitoring system comprises an upper computer (1), a data conversion device (2) connected with the upper computer (1) through a network cable, the data conversion device (2) is connected with a plurality of detection devices (3) through a CAN communication line, and the detection devices (3) are connected with corresponding equipment (4) to be detected;
the detection device (3) adopts a measurement device in a CAN2.0B communication format, CAN set an address in a CAN communication network, realizes parameter detection of equipment to be detected, packages and transmits data according to the CAN2.0B format, and simultaneously receives and analyzes instruction data in the CAN2.0B format;
the data acquisition monitoring system application acquisition monitoring method comprises the following steps:
data processing of upper computer received frame
Starting (S1);
(ii) receiving a TCP packet (S2);
(iii) framing (S3) 50 CAN frames in one TCP packet;
(iv) determining whether 50 frames of data have been processed, if yes, proceeding to step (viii), if not, proceeding to step (v) (S4);
(v) starting to analyze 1 frame data (S5);
(vi) judging whether the data is required according to the ID number contained in the CAN frame, if not, returning to the step (iv), and re-analyzing the CAN frame of the next frame; if the required data is determined, starting data processing to enter step (vii) (S6);
(vii) according to the parameters required to be measured by the equipment to be measured, storing the acquired data according to each parameter, storing the data in the phase dependent variable, and returning to the step (iv) after the frame data is processed (S7);
(viii) data processing of the received frame is ended (S8);
(II) data conversion of the received frame by the host computer
(ix) starting (S9);
(x) acquiring the processed data variable (S10);
(xi) Judging whether the data is the data required by the parameter A of the measuring equipment, if so, storing the data into a parameter A variable conforming to an OPC data format, transmitting the data to an OPC item for generating the parameter A through the variable, and entering a step (xii) after successful transmission;
if not, continuing to judge whether the data required by the parameter B of the measuring equipment is met;
sequentially judging, and if the data does not belong to any parameter, entering a step (xii) (S11);
(xii) The data conversion of the received frame ends (S12);
(III) debugging the detection device
(xiii) Start (S13);
(xiv) Registering OPC (S14);
(xv) Inquiring basic information of the detection device, and acquiring an ID (identity) of the detection device and configuration information thereof so as to communicate (S15);
(xvi) Performing software test setting according to the queried detection device information (S16);
(xvii) Performing communication function tests according to the required requirements, including function requirement tests, error rates, frame loss rates, device operation stability and accuracy tests of measured data (S17);
(xviii) Detecting the end of device debugging (S18);
(IV) operation of the detection device
(xix) Start (S19);
(xx) Registering OPC (S20);
(xxi) Setting an ID number of a detection device to be communicated (S21);
(xxii) Setting a command for inquiring data with the detection device (S22);
(xxiii) Setting a time interval of the query data (S23);
(xxiv) Running software, wherein the software sends a query instruction to the detection device according to a set time interval, receives data returned by the corresponding device, and processes the data (S24);
(xxv) The operation ends (S25).
2. The acquisition and monitoring method of the data acquisition and monitoring system based on the CAN bus and the OPC technology as claimed in claim 1, wherein the method comprises the following steps: the upper computer (1) is an industrial computer or an industrial control computer.
3. The acquisition and monitoring method of the data acquisition and monitoring system based on the CAN bus and the OPC technology as claimed in claim 1, wherein the method comprises the following steps: the data conversion equipment (2) adopts CANET-2E-U to realize data conversion and realize conversion between CAN2.0B format data and TCP format data.
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN108052086A (en) * | 2017-12-28 | 2018-05-18 | 珠海格力智能装备技术研究院有限公司 | Data collecting system |
| CN109412901B (en) * | 2018-12-07 | 2022-09-27 | 成都博宇利华科技有限公司 | Method and system for detecting continuity of acquired data based on time domain processing |
| CN110430107A (en) * | 2019-07-29 | 2019-11-08 | 珠海格力电器股份有限公司 | Communicate response rate display methods and device |
| CN111310163B (en) * | 2020-01-20 | 2022-02-22 | 杭州和利时自动化有限公司 | Authorization management method, device and equipment for configuration software and readable storage medium |
| CN112711555A (en) * | 2021-01-08 | 2021-04-27 | 上海擎昆信息科技有限公司 | Bus and ETH conversion method and device |
| CN112711554A (en) * | 2021-01-08 | 2021-04-27 | 上海擎昆信息科技有限公司 | Bus and USB conversion method and device |
| CN114051182A (en) * | 2022-01-12 | 2022-02-15 | 存灏技术(武汉)有限公司 | Current data acquisition, analysis and transmission system and method based on can protocol |
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