CN111702944B - Concrete prefabricated part production tracing system and control method - Google Patents
Concrete prefabricated part production tracing system and control method Download PDFInfo
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- CN111702944B CN111702944B CN202010611378.0A CN202010611378A CN111702944B CN 111702944 B CN111702944 B CN 111702944B CN 202010611378 A CN202010611378 A CN 202010611378A CN 111702944 B CN111702944 B CN 111702944B
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B28—WORKING CEMENT, CLAY, OR STONE
- B28B—SHAPING CLAY OR OTHER CERAMIC COMPOSITIONS; SHAPING SLAG; SHAPING MIXTURES CONTAINING CEMENTITIOUS MATERIAL, e.g. PLASTER
- B28B17/00—Details of, or accessories for, apparatus for shaping the material; Auxiliary measures taken in connection with such shaping
- B28B17/0063—Control arrangements
- B28B17/0081—Process control
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B28—WORKING CEMENT, CLAY, OR STONE
- B28B—SHAPING CLAY OR OTHER CERAMIC COMPOSITIONS; SHAPING SLAG; SHAPING MIXTURES CONTAINING CEMENTITIOUS MATERIAL, e.g. PLASTER
- B28B17/00—Details of, or accessories for, apparatus for shaping the material; Auxiliary measures taken in connection with such shaping
- B28B17/0063—Control arrangements
- B28B17/0072—Product control or inspection
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B28—WORKING CEMENT, CLAY, OR STONE
- B28B—SHAPING CLAY OR OTHER CERAMIC COMPOSITIONS; SHAPING SLAG; SHAPING MIXTURES CONTAINING CEMENTITIOUS MATERIAL, e.g. PLASTER
- B28B7/00—Moulds; Cores; Mandrels
- B28B7/0002—Auxiliary parts or elements of the mould
- B28B7/0005—Mould identification means, e.g. by radio frequency identification device [RFID]
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- G—PHYSICS
- G06—COMPUTING OR CALCULATING; COUNTING
- G06K—GRAPHICAL DATA READING; PRESENTATION OF DATA; RECORD CARRIERS; HANDLING RECORD CARRIERS
- G06K17/00—Methods or arrangements for effecting co-operative working between equipments covered by two or more of main groups G06K1/00 - G06K15/00, e.g. automatic card files incorporating conveying and reading operations
- G06K17/0022—Methods or arrangements for effecting co-operative working between equipments covered by two or more of main groups G06K1/00 - G06K15/00, e.g. automatic card files incorporating conveying and reading operations arrangements or provisions for transferring data to distant stations, e.g. from a sensing device
- G06K17/0029—Methods or arrangements for effecting co-operative working between equipments covered by two or more of main groups G06K1/00 - G06K15/00, e.g. automatic card files incorporating conveying and reading operations arrangements or provisions for transferring data to distant stations, e.g. from a sensing device the arrangement being specially adapted for wireless interrogation of grouped or bundled articles tagged with wireless record carriers
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P90/00—Enabling technologies with a potential contribution to greenhouse gas [GHG] emissions mitigation
- Y02P90/02—Total factory control, e.g. smart factories, flexible manufacturing systems [FMS] or integrated manufacturing systems [IMS]
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P90/00—Enabling technologies with a potential contribution to greenhouse gas [GHG] emissions mitigation
- Y02P90/30—Computing systems specially adapted for manufacturing
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Abstract
本发明公开了一种混凝土预制件生产追溯系统，包括混凝土预制件生产线、模台和输送线，模台通过输送线运输至各个工位，每个工位设有对应工序的生产设备,输送线上设有输送线检测元件，输送线连接输送线控制PLC，输送线检测元件连接所述输送线控制PLC，每个工位上的生产设备也分别连接各自的生产设备控制PLC，输送线控制PLC和生产设备控制PLC均连接中央主机，中央主机上安装有SCADA系统，每个模台上设有标识签，在所述输送线的路径上设有多个标识签读写器。本方案设计的一种混凝土预制件生产追溯系统能够追溯每个产品的生产过程，并且可以实时监控和自动记录储存整个生产过程的数据，通过对数据记录的统计和分析，进而提高生产质量，提高生产效率。
The invention discloses a production traceability system for concrete prefabricated parts. There is a conveyor line detection element, the conveyor line is connected to the conveyor line control PLC, the conveyor line detection element is connected to the conveyor line control PLC, the production equipment on each station is also connected to its own production equipment control PLC, and the conveyor line control PLC The central host and the production equipment control PLC are connected to the central host. The central host is equipped with a SCADA system, each mold table is provided with an identification tag, and a plurality of identification tag readers are provided on the path of the conveying line. A concrete precast production traceability system designed in this scheme can trace the production process of each product, and can monitor and automatically record and store the data of the entire production process in real time. Productivity.
Description
Technical Field
The invention relates to a production management system and a control method in the field of buildings, in particular to a production tracing system and a control method for a concrete prefabricated part.
Background
In the production process of the concrete prefabricated member of the existing assembly type building production factory, the concrete prefabricated member needs to be produced and manufactured through multiple processes. The concrete prefabricated member is operated and manufactured in different stations through a conveying device or a lifting device. In the production link, manual recording is needed for product quality, process parameters, production beats, personnel efficiency, equipment utilization rate, material circulation and the like, and then statistical analysis is carried out.
At present, the following technical drawbacks and disadvantages exist:
1. in the production of concrete prefabricated parts, in the production process from materials to finished products, the process data of product procedures, process equipment and the like need to be manually recorded by personnel, and the working time of the personnel is wasted.
2. In the production process, the product is manufactured by multiple stations and multiple personnel. The production rhythm, the personnel efficiency and the equipment utilization rate are not easy to coordinate, and the phenomena of human resource waste and equipment resource waste occur.
3. In the production of the product, the production process cannot be traced, and the production link can be monitored.
Therefore, the technical personnel in the field are dedicated to develop a concrete prefabricated member production tracing system to solve the phenomenon that the quality in the production link is incapable or not easy to manage.
Disclosure of Invention
In view of the above-mentioned defects in the prior art, the technical problem to be solved by the present invention is to provide a system for tracing the production process of a concrete prefabricated member, which can trace the production process of each product, monitor and automatically record and store the data of the whole production process in real time, and improve the production quality and production efficiency by counting and analyzing the data records.
In order to achieve the purpose, the invention provides a precast concrete production tracing system which comprises a precast concrete production line, a mould table and a conveying line, wherein the precast concrete production line comprises a plurality of stations, the mould table is conveyed to each station through the conveying line, each station is provided with production equipment corresponding to a working procedure, a conveying line detection element is arranged on the conveying line, the conveying line is connected with a conveying line control PLC, the conveying line detection element is connected with the conveying line control PLC, the production equipment on each station is also respectively connected with the production equipment control PLC, the conveying line control PLC and the production equipment control PLC are both connected with a central host, an SCADA system is installed on the central host, each mould table is provided with an identification tag, and a plurality of identification tag readers-writers are arranged on the path of the conveying line.
The invention has the beneficial effects that: 1) the mold tables are provided with identification tags for calibrating the corresponding mold tables, the conveying line detection element is connected with the conveying line control PLC, the process state of inflow and outflow of each mold table at each station can be automatically detected, and signals of the existence of the mold table at a certain station are transmitted to the conveying line control PLC for automatically controlling the conveying line; 2) the production equipment on each station is also respectively connected with the equipment control PLC, and the production process of each concrete prefabricated part, including key process parameters, is automatically recorded. In quality management, a good tracing effect is achieved, and the phenomenon that the quality cannot be managed or is difficult to manage in a production link is solved; the time consumed on each station can be effectively calculated through the record of the production condition of the concrete prefabricated member; 3) the SCADA system is also connected with other field equipment, communicates in real time and can read the information and technological parameters of the current equipment. And the SCADA system can calculate the inflow time or the outflow time of the mould platform of each station according to the circulation condition of the mould platform, further calculate the production period of each station and record the technological process parameters of the concrete prefabricated member on the production equipment of the working procedure. The SCADA system can display the current circulating mould platform and the concrete prefabricated member on the mould platform in real time on the monitoring picture, and the processes and the process treatments which are carried out by the mould platform and the concrete prefabricated member.
Further, the SCADA system is connected with the SQL Server database. The design has the advantages that the SQL Server database is used for storing data, data analysis can be carried out, and the time consumed on each station can be effectively calculated through the record of the production condition of the concrete prefabricated member. Under concrete prefabricated member production processes and the more condition of station, the production beat of every station is gone out in the analysis, and rate of equipment utilization, personnel's efficiency scheduling problem provides key data and gives production management personnel, and then promotes production efficiency.
Furthermore, the precast concrete production line comprises a curing kiln working procedure station, and identification label readers and writers are respectively arranged on the first station of the precast concrete production line and the transmission line path of the curing kiln working station. The advantage of this design is that the identification tag of the mould table is read at the first station in order to mark the mould table entering the production line; maintenance kiln station reads the sign of mould platform, because the maintenance kiln is an important intermediate link in the production line, after entering into the maintenance kiln, the mould platform can be put into stereoscopic warehouse, reads the sign and signs and knows that concrete label mould platform gets into the maintenance, goes out the maintenance kiln and reads the sign once more and signs, carries out the secondary and checks, avoids the mistake.
Furthermore, the identification tag is an RFID electronic tag, and the identification tag reader-writer is an RFID card reader. This has the advantage of facilitating recording and reading of information.
Further, the conveying line detection element is a proximity switch or a photoelectric switch. The advantage of this design is that can effectual detection die stage's operating condition.
The invention provides a concrete prefabricated part production tracing control method, which comprises a concrete prefabricated part production line, wherein the concrete prefabricated part production line comprises a plurality of stations, and production equipment is arranged on each station; (2) the label reader-writer uploads the information of the label read in the step (1) to the conveying line control PLC, and the conveying line control PLC uploads the information to the SCADA system of the central host; (3) the mould platforms move to each processing station of the production line along with the conveying line, conveying line detection elements are arranged on the conveying line and used for detecting the process state of inflow and outflow of each mould platform, and the conveying line control PLC calculates the time of inflow and outflow of each mould platform according to the state data of the detection elements and uploads the data to the central host computer for information processing. (4) And (3) monitoring the circulation condition of the mould platform and storing the data information of the steps (1), (2) and (3) in real time by the SCADA system of the central host.
The invention has the beneficial effects that: the condition of each mould station in the production line can be clearly tracked through the identification tag, the inflow time and the outflow time of each mould station at each station can be automatically recorded, and the production process of each concrete prefabricated member, including key process parameters, can be automatically recorded. In quality management, a good tracing effect is achieved, and the phenomenon that the quality cannot be managed or is difficult to manage in a production link is solved; through the record of the precast concrete production condition, the time that consumes on every station can effectual calculation.
Further, the SCADA system is connected with the SQL Server database. The design has the advantages that the SCADA system is also connected with other field equipment, communicates in real time, can read the information and technological parameters of the current equipment and uploads the data to the SQL Server database for storage. And the SCADA system can calculate the inflow time or the outflow time of the mold platform of each station according to the circulation condition of the mold platform, further calculate the production period of each station and record the technological process parameters of the concrete prefabricated member on the production equipment of the working procedure. The SCADA system can display the current circulating mould platform and the concrete prefabricated member on the mould platform in real time on the monitoring picture, and the processes and the process treatments which are carried out by the mould platform and the concrete prefabricated member. The SQL Server database is used for storing data and analyzing the data, and the time consumed on each station can be effectively calculated through the record of the production condition of the concrete prefabricated member. Under concrete prefabricated member production processes and the more condition of station, the production beat of every station is gone out in the analysis, and rate of equipment utilization, personnel's efficiency scheduling problem provides key data and gives production management personnel, and then promotes production efficiency.
Furthermore, the production equipment arranged at each processing station on the production line is also respectively provided with a control PLC, and the control PLC of the production equipment uploads information to the SCADA system of the central host for monitoring the production state of each production equipment.
And (3) further, the identification label reader-writer in the step (1) is arranged on the transmission line path at the first station and the curing kiln station, when the mold platform flows out of the curing kiln in the production line, the identification label reader-writer is used for reading the identification label on the mold platform, and information is uploaded to the SCADA system of the central host through the transmission line control PLC.
Furthermore, the identification tag is an RFID electronic tag, and the identification tag reader-writer is an RFID card reader. The advantage of this design is that the mark enters the mould platform of production line, then tracks the running state of mould platform, records the station that the mould platform passed through and the process that goes through including the stereo warehouse maintenance that the mould platform got into the curing kiln, and the record is checked when the inflow time is checked with the outflow time is two-shot.
Further, the conveying line detection element in the step (3) is a proximity switch or a photoelectric switch. The advantage of this design is that can effectual detection die stage's operating condition.
In a word, the system for tracing the production of the precast concrete and the control system thereof can trace the whole production process of a product by installing the identification tags on the mould table and reading the identification tags in a specific process in a production line, configure the use of a data acquisition monitoring system and a database, automatically record the production process data of the process, the equipment and the like in the production process from materials to finished products, coordinate the production takt of multiple stations, improve the utilization rate of the equipment and the production and manufacturing efficiency of personnel by counting and analyzing the production process data, and monitor the production process in real time by the data acquisition monitoring system to improve the production management quality.
Drawings
FIG. 1 is a schematic network diagram of a concrete precast element production traceability system of the present invention;
fig. 2 is a logic diagram of the working process of the concrete prefabricated member production traceability system.
Detailed Description
The present invention will be further described with reference to the accompanying drawings and examples, wherein the terms "upper", "lower", "left", "right", "inner", "outer", and the like, as used herein, refer to an orientation or positional relationship indicated in the drawings, which is for convenience and simplicity of description, and does not indicate or imply that the referenced devices or components must be in a particular orientation, constructed and operated in a particular manner, and thus should not be construed as limiting the present invention. The terms "first," "second," "third," and the like are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.
As shown in fig. 1 and 2, the invention provides a concrete prefabricated part production tracing system, which comprises a concrete prefabricated part production line, a mold table and a conveying line 1, wherein the concrete prefabricated part production line comprises a plurality of stations, each station is provided with production equipment corresponding to a working procedure, the production line comprises a curing kiln 4 arranged at a station, a distributing machine arranged at a distributing station, a mold distributing manipulator arranged at a mold distributing station and the like. Each mold platform is provided with an identification label, each identification label is provided with a unique number, the identification label can be an RFID electronic tag or a two-dimensional code or a one-dimensional code, the preferred identification label can be an RFID electronic tag, the corresponding identification label reader-writer uses an RFID card reader or an industrial camera, the industrial camera is also called an industrial code scanning gun, and the preferred identification label reader-writer uses an RFID card reader. The label reader-writer is arranged at a station corresponding to the path of the conveying line 1, and preferably, the label reader-writer is respectively arranged on the first station of the concrete prefabricated part production line and the path of the conveying line 1 of the curing kiln 4 station.
The die table is transported to the production equipment of each station through the conveyor line 1 for processing production, and the RFID electronic tag number on the die table is read when the die table enters the first station of the production line. Transfer chain control PLC3 is connected to transfer chain 1, installs transfer chain detecting element 2 on the transfer chain 1, and transfer chain detecting element 2 is proximity switch or photoelectric switch, and detecting element connects transfer chain control PLC 3.
The production equipment on each station is also respectively connected with the production equipment control PLC, for example, the curing kiln 4 is provided with a curing kiln control PLC5, the distributing machine is provided with a distributing machine control PLC, and the die distributing manipulator is provided with a die distributing manipulator control PLC. The transmission line control PLC3 and the production equipment control PLC are both connected with a central host, the central host is provided with an SCADA system 6, the SCADA system 6 is used for data acquisition and configuration monitoring, the SCADA system 6 is connected with an SQL Server database 7, and the SQL Server database 7 can store and analyze relevant production data. The SQL Server database 7 is installed in a central host, or the SQL Server database 7 is installed in another computer or Server, and the central host is network-connected with the computer or Server in which the SQL Server database 7 is installed.
In the production process, each mould platform moves to each station, and the circulation direction and the position of the mould platform are detected according to the conveying line detection element 2. When the mold table is transferred to the position with the RFID card reader, the card reader can read the serial number of the RFID electronic tag of the mold table and upload data to the PLC3, and the PLC3 forwards the data to the database of the SCADA system 6 for storage. After the station is produced, the mould platform flows to the next station through the conveying line 1, the mould platform number data of the next procedure can be changed along with the inflow of a new mould platform, and the data correspondingly stored in the SCADA database is also changed. Each station has a platform number, and data of the platform number of the current station can be stored and circulated along with the circulation of the platform. If the current station has no die table, then its current data is 0 or none. When the mould platform begins to flow, the corresponding concrete prefabricated members on the mould platform are assigned with regular concrete prefabricated member numbers by the SCADA system 6, and the concrete prefabricated member numbers flow together along with the mould platform numbers.
The SCADA system 6 is also connected with other on-site production equipment, communicates in real time and can read the information and technological parameters of the current equipment. The SCADA system 6 can calculate the inflow time or the outflow time of the mould platform of each station according to the circulation condition of the mould platform, further calculate the production period of each station and record the technological process parameters of the concrete prefabricated member on the production equipment of the working procedure. The SCADA system 6 can display in real time on the monitoring screen the concrete preforms currently in circulation and also the mould tables, the work processes that they have undergone and the process treatments that they have performed.
The invention also provides a concrete prefabricated part production tracing control method which comprises a concrete prefabricated part production line, wherein the concrete prefabricated part production line comprises a plurality of stations, and production equipment is arranged on each station, wherein the production line comprises a curing kiln 4 arranged at the station 4, a distributing machine arranged at the distributing station, a mould distributing manipulator arranged at the mould distributing station and the like. A concrete prefabricated part production tracing control method comprises the following steps:
(1) arranging an identification tag on each die table, wherein the identification tag is an RFID electronic tag, and identification tag readers and readers are arranged on the paths of the conveying lines 1 of the first station and the subsequent stations and used for reading the identification tags, and the identification tag readers and readers are RFID card readers;
(2) when the die table enters a first station of the production line, the card reader can read the serial number of the RFID electronic tag of the die table, the tag reader-writer uploads the information of the tag read in the step (1) to the conveying line control PLC3, and the conveying line control PLC3 uploads the information to the central host computer for information processing and storage;
(3) the die tables run to each processing station of the production line along with the conveying line 1, the conveying line 1 is provided with a conveying line detection element 2, the conveying line detection element 2 detects the process state of each die table entering and flowing out of each station, the conveying line control PLC3 calculates the entering and flowing time of each die table according to the state data of the detection element, and then the conveying line control PLC3 uploads the data to the central host for information processing;
(4) and (3) displaying the circulation condition of the monitoring module platform and storing the information data of the steps (1), (2) and (3) in real time by the central host.
Preferably, the SCADA configuration software is connected to the SQL Server database 7. The SQL Server database 7 is installed in another computer or Server, or the central host is network-connected to the computer or Server in which the SQL Server database 7 is installed.
Preferably, the production equipment arranged at each processing station on the production line is also respectively provided with a control PLC, and the control PLC of the production equipment uploads the equipment information to the SCADA system of the central host.
Preferably, the label reader-writer in the step (1) is arranged on the path of the conveying line 1 at the first station and the curing kiln 4 station, when the mold platform enters and flows out of the curing kiln 4 in the production line, the label reader-writer is used for reading the label on the mold platform, and information is uploaded to the SCADA system of the central host through the conveying line control PLC 3.
Preferably, the detection element in step (3) is a proximity switch or a photoelectric switch.
The identification tag can also use a one-dimensional code or a two-dimensional code, and the corresponding identification tag reader-writer is an industrial camera, also called an industrial code scanning gun or a code scanning gun.
The foregoing detailed description of the preferred embodiments of the invention has been presented. It should be understood that numerous modifications and variations could be devised by those skilled in the art in light of the present teachings without departing from the inventive concepts. Therefore, the technical solutions available to those skilled in the art through logic analysis, reasoning and limited experiments based on the prior art according to the concept of the present invention should be within the scope of protection defined by the claims.
Claims (8)
1. The utility model provides a system is traceed back in precast concrete production, includes precast concrete production line, mould platform and transfer chain, precast concrete production line includes a plurality of stations, the mould platform passes through the transfer chain and transports to each station, every station is equipped with the production facility that corresponds the process, characterized by: the automatic production line control system comprises a conveying line, a production equipment control PLC, a central host computer, a SCADA system, a plurality of identification tags, a plurality of identification tag readers-writers, a plurality of working stations and a plurality of working stations, wherein the conveying line is provided with a conveying line detection element, the conveying line is connected with the conveying line control PLC, the production equipment on each working station is also respectively connected with the production equipment control PLC, the conveying line control PLC and the production equipment control PLC are both connected with the central host computer, the SCADA system is installed on the central host computer, each die table is provided with the identification tags, and the paths of the conveying line are provided with the plurality of identification tag readers-writers; the conveying line detection element is a proximity switch or a photoelectric switch.
2. A precast concrete production traceability system as set forth in claim 1, wherein: and the SCADA system is connected with the SQL Server database.
3. A precast concrete production traceability system as set forth in claim 1, wherein: the precast concrete production line comprises a maintenance kiln working procedure station, and identification tag readers are respectively arranged on the first station of the precast concrete production line and the conveying line path of the maintenance kiln working station.
4. A precast concrete production traceability system as set forth in claim 1, wherein: the identification tag is an RFID electronic tag, and the identification tag reader-writer is an RFID card reader.
5. A concrete prefabricated part production tracing control method comprises a concrete prefabricated part production line, wherein the concrete prefabricated part production line comprises a plurality of stations, and production equipment is arranged on each station, and the method is characterized in that: comprises the following steps of (a) carrying out,
(1) an identification tag is arranged on each mould platform, each identification tag has a unique number, and identification tag readers are arranged on conveying line paths of a first station and a plurality of subsequent stations and used for reading the identification tags; the identification tag reader-writer in the step (1) is arranged on a transmission line path at a first station and a curing kiln station, when the mold table flows in and out of a curing kiln in the production line, the identification tag reader-writer is used for reading the identification tag on the mold table, and information is uploaded to an SCADA system of a central host through a transmission line control PLC;
(2) the label reader-writer uploads the information of the label read in the step (1) to the conveying line control PLC, and the conveying line control PLC uploads the information to the SCADA system of the central host;
(3) the die tables run to each processing station of the production line along with the conveying line, the conveying line is provided with a conveying line detection element, the conveying line detection element detects the process state of inflow and outflow of each die table, the conveying line control PLC calculates the inflow and outflow time of each die table according to the state data of the detection element, and then the data are uploaded to the central host computer for information processing; (4) and (3) displaying the circulation condition of the monitoring module platform and storing the information data of the steps (1), (2) and (3) in real time by the SCADA system of the central host.
6. A retrospective control method of the production of precast concrete according to claim 5, characterized in that: and the SCADA system is connected with the SQL Server database.
7. A retrospective control method for the production of precast concrete according to claim 5 or 6, characterised in that it comprises: and the production equipment arranged at each processing station on the production line is also respectively provided with a respective control PLC, and the control PLC of the production equipment uploads information to the SCADA system of the central host.
8. A retrospective control method for the production of precast concrete according to claim 5 or 6, characterised in that it comprises: the identification tag is an RFID electronic tag, and the identification tag reader-writer is an RFID card reader.
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| CN113070996A (en) * | 2021-04-02 | 2021-07-06 | 湖南三一快而居住宅工业有限公司 | Control device and system for production control method of concrete prefabricated part |
| CN114043616A (en) * | 2021-08-17 | 2022-02-15 | 四川吉浦森建材有限公司 | Gypsum board production line and production method thereof |
| CN113942106B (en) * | 2021-08-17 | 2023-03-14 | 四川吉浦森建材有限公司 | Gypsum board forming production line and production method thereof |
| CN113687638B (en) * | 2021-08-27 | 2023-03-10 | 芜湖誉路智能装备有限公司 | A digital control method for aerated concrete production information |
| CN114953153A (en) * | 2021-11-26 | 2022-08-30 | 北京水木源泉科技有限公司 | Centralized control device for concrete prefabricated part production line |
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