CN106896769A - A kind of spinning and weaving workshop real-time data acquisition system - Google Patents
A kind of spinning and weaving workshop real-time data acquisition system Download PDFInfo
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- CN106896769A CN106896769A CN201710250829.0A CN201710250829A CN106896769A CN 106896769 A CN106896769 A CN 106896769A CN 201710250829 A CN201710250829 A CN 201710250829A CN 106896769 A CN106896769 A CN 106896769A
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- G—PHYSICS
- G05—CONTROLLING; REGULATING
- G05B—CONTROL OR REGULATING SYSTEMS IN GENERAL; FUNCTIONAL ELEMENTS OF SUCH SYSTEMS; MONITORING OR TESTING ARRANGEMENTS FOR SUCH SYSTEMS OR ELEMENTS
- G05B19/00—Programme-control systems
- G05B19/02—Programme-control systems electric
- G05B19/04—Programme control other than numerical control, i.e. in sequence controllers or logic controllers
- G05B19/042—Programme control other than numerical control, i.e. in sequence controllers or logic controllers using digital processors
- G05B19/0423—Input/output
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- G—PHYSICS
- G05—CONTROLLING; REGULATING
- G05B—CONTROL OR REGULATING SYSTEMS IN GENERAL; FUNCTIONAL ELEMENTS OF SUCH SYSTEMS; MONITORING OR TESTING ARRANGEMENTS FOR SUCH SYSTEMS OR ELEMENTS
- G05B2219/00—Program-control systems
- G05B2219/20—Pc systems
- G05B2219/24—Pc safety
- G05B2219/24215—Scada supervisory control and data acquisition
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- Engineering & Computer Science (AREA)
- Automation & Control Theory (AREA)
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Abstract
The present invention relates to a kind of spinning and weaving workshop real-time data acquisition system, including personnel information acquisition equipment, computerized equipment, multiple yield collecting devices and multiple operational efficiency collecting devices, personnel information acquisition equipment is used to gather the current quantity of various people in spinning and weaving workshop, each yield collecting device is arranged on a loom, production cloth for gathering correspondence loom is long, each operational efficiency collecting device is arranged on a loom, operational efficiency for gathering correspondence loom, computerized equipment and personnel information acquisition equipment, multiple yield collecting devices and multiple operational efficiency collecting devices are connected respectively, based on personnel information acquisition equipment, the collection result of multiple yield collecting devices and multiple operational efficiency collecting devices determines alarm strategy.By means of the invention it is possible to the working condition monitor in real time of each loom to spinning and weaving workshop, while the instant quantity of all kinds of personnel inside spinning and weaving workshop can be counted.
Description
Technical field
The present invention relates to spinning and weaving workshop data collecting field, more particularly to a kind of spinning and weaving workshop real-time data acquisition system.
Background technology
Spinning and weaving workshop is a kind of typical equipment intensity place, and the quantity of loom may thousands of, every work of loom
Need real-time data acquisition as state, meanwhile, large-scale spinning and weaving workshop be also required to all kinds of different operating personnel's participation devices operations,
The activity such as instrument meter reading and personal management, traditional equipment and demographic data's collection in worksite pattern not only wasting manpower and material resources, and
And real-time is not strong, collection effect is not ideal enough, under the development trend of Current data acquisition mode network, how will calculate
Machine observation and control technology, network technology reasonably apply to textile industry, are one of data acquisition equipment manufacturer urgent problems.
There is also the spinning and weaving workshop data acquisition plan of some appliance computer networks in the prior art, but these schemes
Data collection point excessively disperses, for example, some data acquisition plan collecting device operation situations, some data acquisition plans are only
Collector enters artificial situation, without the data acquisition of the data acquisition of equipment and personal information is combined together, meanwhile, it is existing
Each data acquisition plan having is not high to the collection result precision of equipment and personnel, it is impossible to meet the number of spinning and weaving workshop manager
Required according to collection.
Accordingly, it would be desirable to a kind of new spinning and weaving workshop real-time data acquisition system, by each loom of spinning and weaving workshop inside
Data acquisition is integrated with the data acquisition of all kinds of personnel, while the precision and real-time of the data of collection can be improved,
For the management of spinning and weaving workshop manager provides important referential data.
The content of the invention
In order to solve the above problems, the invention provides a kind of spinning and weaving workshop real-time data acquisition system, transform existing
Excessively scattered data acquisition scheme, weave cotton cloth length and operational efficiency to each loom formulate rational interpretative version, with
The gathered data of higher precision is obtained, while quoting the more direct IMAQ of collection effect and identification technology in spinning and weaving workshop
All kinds of personnel amounts be identified and count, by system collection face covering spinning and weaving workshop in all looms and owner
Group.
According to an aspect of the present invention, there is provided a kind of spinning and weaving workshop real-time data acquisition system, the data acquisition system
System includes personnel information acquisition equipment, computerized equipment, multiple yield collecting devices and multiple operational efficiency collecting devices,
The personnel information acquisition equipment is used to gather the current quantity of various people in spinning and weaving workshop, and each yield collecting device sets
Put on a loom, the production cloth for gathering correspondence loom is long, and each operational efficiency collecting device is arranged on one and knits
On machine, the operational efficiency for gathering correspondence loom is the computerized equipment and the personnel information acquisition equipment, described
Multiple yield collecting devices and the multiple operational efficiency collecting device are connected respectively, based on the personnel information acquisition equipment,
The collection result of the multiple yield collecting device and the multiple operational efficiency collecting device determines alarm strategy.
More specifically, in the spinning and weaving workshop real-time data acquisition system, also including：Wireless communication interface, with distal end
Spinning and weaving workshop management platform data transmit-receive is realized by wireless communication link；USB flash disk communication interface, for inserting outside USB flash disk, connects
The image template of the built-in various people of the outside USB flash disk is received, the image template of the various people is to being installed with the weaving
The operating personnel of the different classes of default clothing in workshop shoot after gained image carries out templating treatment and obtain, and are weaved for recognizing
Different classes of operating personnel in workshop；Memory, is connected with the USB flash disk communication interface, to receive the various people's
Image template, is additionally operable to store default loom filling density, personnel's upper limit gray threshold, personnel's lower limit gray threshold, predetermined minimum cloth
Threshold value long and predetermined minimum operational efficiency, personnel's upper limit gray threshold and personnel's lower limit gray threshold are used for image
In operating personnel and background separation；Each yield collecting device is connected with the memory, including beating number of times collector,
First timer and arithmetic logic device, the beating number of times collector are used to gather the beating number of times of correspondence loom, described the
One timer is used to be the real-time timing of collection long of the cloth of each yield collecting device, the arithmetic logic device with it is described
Memory, the beating number of times collector and first timer are connected respectively, calculate correspondence loom production cloth hourly
Long, the correspondence loom is hourly to produce multiplying for a length of default loom filling density beating number of times hourly with corresponding loom of cloth
Product；Each operational efficiency collecting device includes that stop over number of times collector, latitude stop number of times collector, the second timer and microprocessor
Device, the stop over number of times collector is used to gather the stop over number of times of correspondence loom, and the latitude stops number of times collector for gathering right
The latitude of loom is answered to stop number of times, second timer is used for the operational efficiency collection for each operational efficiency collecting device
Real-time timing, the microprocessor stops number of times collector and second timer with the stop over number of times collector, the latitude
Connect respectively, the stop over number of times based on correspondence loom hourly stops the operational efficiency of the number of times corresponding loom of calculating with latitude；It is described
Personnel information acquisition equipment includes multiple images identifier and an adder, and each image recognizer is located at the weaving car
Between different corners position top, the current quantity for gathering the various people in responsible region；Each image recognizer
Including image acquisition units, pretreatment unit, personnel's cutting unit and template matches unit, described image collecting unit is used to adopt
Collect the area image in the responsible region of image recognizer where it, the pretreatment unit connects with described image collecting unit
Connect, it is filtered to export for performing gray processing and the treatment of self adaptation recursive filtering successively in order to the area image
Image, personnel's cutting unit is connected respectively with the memory and the pretreatment unit, by filtered image
Pixel of the gray value between personnel's upper limit gray threshold and personnel's lower limit gray threshold is recognized and constitutes more personal
Member's subgraph, the template matches unit is connected respectively with the memory and personnel's cutting unit, by everyone
Member's subgraph is matched one by one with the image template of the various people, and the match is successful then determines described each personnel's subgraph pair
The personnel's type answered, it fails to match then determine described each personnel's subgraph it is corresponding be Migrant women, the adder with
The template matches unit connection of each image recognizer, adds up the current quantity of various people, and the various people include outer
Come personnel and different classes of operating personnel；The computerized equipment and memory, the fortune of each yield collecting device
Calculate logical device, the microprocessor of each operational efficiency collecting device and adder to connect respectively, when there is evaluation logic
During the production cloth of part output threshold value long less than or equal to predetermined minimum cloth long, send loom and weave cotton cloth quantity abnormal alarm signal, when depositing
When the operational efficiency of microprocessor output is less than or equal to predetermined minimum operational efficiency, loom running status abnormal alarm letter is sent
Number, when the Migrant women quantity non-zero in the current quantity of the various people of adder output, send stranger's intrusion alarm letter
Number；Wherein, the wireless communication interface is connected with the computerized equipment, different to transmit wirelessly loom quantity of weaving cotton cloth
Normal alarm signal, the loom running status abnormal alarm signal or stranger's intrusion alarm signal, are additionally operable to wireless receiving
The control signal that spinning and weaving workshop management platform sends.
More specifically, in the spinning and weaving workshop real-time data acquisition system, the data collecting system also includes：Power supply
Power supply, is connected with the computerized equipment, for being the data acquisition under the control of the computerized equipment
Electronic equipment in system in addition to the power supply provides power supply supply.
More specifically, in the spinning and weaving workshop real-time data acquisition system, the wireless communication interface is moved for GPRS
One kind in communication interface, 3G mobile communication interfaces or 4G mobile communication interfaces.
More specifically, in the spinning and weaving workshop real-time data acquisition system, described image collecting unit, the pretreatment
Unit, personnel's cutting unit and the template matches unit are respectively adopted different fpga chips to realize.
More specifically, in the spinning and weaving workshop real-time data acquisition system, the wireless communication interface is also by adder
The current quantity of the various people of output is transmitted to spinning and weaving workshop management platform.
More specifically, in the spinning and weaving workshop real-time data acquisition system, the data collecting system also includes：Liquid crystal
Display screen, is connected with the computerized equipment, is weaved cotton cloth quantity abnormal alarm signal, institute for display and the loom in real time
State loom running status abnormal alarm signal or stranger's intrusion alarm signal distinguishes corresponding warning word, be additionally operable in real time
The current quantity of the various people of display adder output.
Brief description of the drawings
Fig. 1 is the block diagram of the spinning and weaving workshop real-time data acquisition system according to embodiment of the present invention.
Fig. 2 is the yield collecting device of the spinning and weaving workshop real-time data acquisition system according to embodiment of the present invention
Block diagram.
Specific embodiment
The embodiment to spinning and weaving workshop real-time data acquisition system of the invention is carried out specifically below with reference to accompanying drawings
It is bright.
Frame, is the various machines required for natural fiber or chemical fibre being processed into textile also known as textile machinery
Tool equipment.The textile machine of broad sense also includes the chemical machinery of production chemical fibre.Textile machine is the production hand of textile industry
Section and material base, its technical merit, quality and manufacturing cost, are directly connected to the development of textile industry.
It is considered as now the extension of textile machine although the machinery of production chemical fibre is including various chemical machineries, category is wide
The textile machine of justice.Operation required for the different fiber process into textile such as cotton, fiber crops, silk, hair is not quite similar, what is had is complete
Complete different, so the machine for needing is also of all kinds, species is various.
The usual classification by the process of production of textile machine, in respect of：Spinning equipment, fabric manufacture equipment, dyeing apparatus, collator,
Chemical fibre reels off raw silk from cocoons equipment, silk reeling equipment and bonded fabric equipment.Spinning equipment is divided into processing chopped fiber and processing long fibre again
Two classes.Cotton and cotton chemical fibre belong to chopped fiber class, and hair, fiber crops, thin,tough silk and its blending chemical fibre belong to long fibre class.The manufacturing procedure of two types of fibers
Difference, equipment can not be general, and only the design principle of some machines is close.Even if same kind equipment, the structure of machine
It is similar, but property due to raw material is different with the final requirement to fabric, typically can not be general.
Because frame is to the importance of textile production, therefore, most spinning and weaving workshop has all customized data acquisition to frame
System, with determine frame whether normal work, but frame data collecting system acquisition target of the prior art disperse, do not enter
The unified collection layout of all frames of row, is not also combined with personnel's species, quantity acquisition system, gathered data precision also
As.
Spinning and weaving workshop real-time data acquisition system of the invention, a loom is arranged on by each yield collecting device
On, the production cloth for gathering correspondence loom is long, and each operational efficiency collecting device is arranged on a loom, for gathering
The operational efficiency of correspondence loom, while gathered as spinning and weaving workshop internal staff number of species using IMAQ identification technology
Important means so that data acquisition coverage rate more extensive, data are more accurate.
Fig. 1 is the block diagram of the spinning and weaving workshop real-time data acquisition system according to embodiment of the present invention, institute
Stating data collecting system includes：Personnel information acquisition equipment 2, computerized equipment 1, multiple yield collecting devices 3 and multiple
Operational efficiency collecting device 4, the personnel information acquisition equipment 2 is used to gather the current quantity of various people in spinning and weaving workshop,
Each yield collecting device 3 is arranged on a loom, and the production cloth for gathering correspondence loom is long, each operational efficiency
Collecting device 4 is arranged on a loom, and the operational efficiency of loom, the computerized equipment 1 and institute are corresponded to for gathering
Personnel information acquisition equipment 2, the multiple yield collecting device 3 and the multiple operational efficiency collecting device 4 is stated to connect respectively,
Based on the personnel information acquisition equipment 2, the multiple yield collecting device 3 and the multiple operational efficiency collecting device 4
Collection result determines alarm strategy, wherein, the quantity of multiple yield collecting devices 3 is n, multiple operational efficiency collecting devices 4
Quantity be m, n and m is all the natural number more than 1.
Then, continue to carry out further the concrete structure of spinning and weaving workshop real-time data acquisition system of the invention
It is bright.
The data collecting system also includes：Wireless communication interface, passes through wireless with the spinning and weaving workshop management platform of distal end
Communication link realizes data transmit-receive.
The data collecting system also includes：USB flash disk communication interface, for inserting outside USB flash disk, receives in the outside USB flash disk
The image template of the various people for putting, the image template of the various people is to being installed with the different classes of pre- of the spinning and weaving workshop
If the operating personnel of clothing shoot after gained image carries out templating treatment and obtain, different classes of in spinning and weaving workshop for recognizing
Operating personnel.
The data collecting system also includes：Memory, is connected with the USB flash disk communication interface, to receive all kinds of people
The image template of group, be additionally operable to store default loom filling density, personnel's upper limit gray threshold, personnel's lower limit gray threshold, it is predetermined most
Few cloth threshold value long and predetermined minimum operational efficiency, personnel's upper limit gray threshold and personnel's lower limit gray threshold are used for will
Operating personnel and background separation in image.
As shown in Fig. 2 each yield collecting device 3 is connected with the memory, including beating number of times collector 6, the
One timer 7 and arithmetic logic device 5, the beating number of times collector 6 are used to gather the beating number of times of correspondence loom, and described the
One timer 5 is used to be the real-time timing of collection long of the cloth of each yield collecting device 3, the arithmetic logic device 5 with
The memory, the beating number of times collector 6 and first timer 7 are connected respectively, calculate correspondence loom hourly
Production cloth is long, the correspondence loom production a length of default loom filling density of cloth and the corresponding loom beating number of times hourly hourly
Product.
Each operational efficiency collecting device 4 include stop over number of times collector, latitude stop number of times collector, the second timer and
Microprocessor, the stop over number of times collector is used to gather the stop over number of times of correspondence loom, and the latitude stops number of times collector to be used for
The latitude of collection correspondence loom stops number of times, and second timer is used to be the operation of each operational efficiency collecting device 4
Efficiency gathers real-time timing, and the microprocessor and the stop over number of times collector, the latitude stop number of times collector and described the
Two timers are connected respectively, and the operation that the stop over number of times based on correspondence loom hourly stops the number of times corresponding loom of calculating with latitude is imitated
Rate.
The personnel information acquisition equipment 2 includes multiple images identifier and an adder, each image recognizer
Positioned at the different corners position top of the spinning and weaving workshop, the current quantity for gathering the various people in responsible region.
Each image recognizer includes image acquisition units, pretreatment unit, personnel's cutting unit and template matches list
Unit, described image collecting unit is used to gather the area image in the responsible region of image recognizer where it, the pretreatment
Unit is connected with described image collecting unit, for performing gray processing and self adaptation recurrence successively in order to the area image
Filtering process, to export filtered image, personnel's cutting unit is distinguished with the memory and the pretreatment unit
Connection, by gray value in filtered image between personnel's upper limit gray threshold and personnel's lower limit gray threshold
Pixel recognize and constitute multiple personnel's subgraphs, the template matches unit and the memory and personnel's cutting unit
Connect respectively, each personnel's subgraph is matched one by one with the image template of the various people, the match is successful then determines
The corresponding personnel's type of described each personnel's subgraph, it fails to match then determine it is described each personnel's subgraph is corresponding is
Migrant women, the adder is connected with the template matches unit of each image recognizer, adds up the current number of various people
Amount, the various people include Migrant women and different classes of operating personnel.
The computerized equipment 1 and memory, the arithmetic logic device 5 of each yield collecting device 3, each
The microprocessor and adder of operational efficiency collecting device 4 are connected respectively, when the production cloth that there is the output of arithmetic logic device 5 is long
During threshold value long less than or equal to predetermined minimum cloth, send loom and weave cotton cloth quantity abnormal alarm signal, when there is microprocessor output
When operational efficiency is less than or equal to predetermined minimum operational efficiency, loom running status abnormal alarm signal is sent, when adder output
Various people current quantity in Migrant women quantity non-zero when, send stranger's intrusion alarm signal.
Claims (1)
1. a kind of spinning and weaving workshop real-time data acquisition system, the data collecting system includes personnel information acquisition equipment, calculates
Machine control device, multiple yield collecting devices and multiple operational efficiency collecting devices, the personnel information acquisition equipment are used to adopt
The current quantity of various people in collection spinning and weaving workshop, each yield collecting device is arranged on a loom, right for gathering
Answer the production cloth of loom long, each operational efficiency collecting device is arranged on a loom, the fortune for gathering correspondence loom
Line efficiency, the computerized equipment and the personnel information acquisition equipment, the multiple yield collecting device and described many
Individual operational efficiency collecting device is connected respectively, based on the personnel information acquisition equipment, the multiple yield collecting device and institute
The collection result for stating multiple operational efficiency collecting devices determines alarm strategy；
Characterized in that, the data collecting system also includes：
Wireless communication interface, the spinning and weaving workshop management platform with distal end realizes data transmit-receive by wireless communication link；
USB flash disk communication interface, for inserting outside USB flash disk, receives the image template of the built-in various people of the outside USB flash disk, described
The image template of various people is to shoot gained figure to being installed with the operating personnel of the different classes of default clothing of the spinning and weaving workshop
Obtained after as carrying out templating treatment, for recognizing the different classes of operating personnel in spinning and weaving workshop；
Memory, is connected with the USB flash disk communication interface, to receive the image template of the various people, is additionally operable to storage default
Loom filling density, personnel's upper limit gray threshold, personnel's lower limit gray threshold, predetermined minimum cloth threshold value long and predetermined minimum operation effect
Rate, personnel's upper limit gray threshold and personnel's lower limit gray threshold are used for the operating personnel in image and background point
From；
Each yield collecting device is connected with the memory, including beating number of times collector, the first timer and computing are patrolled
Device is collected, the beating number of times collector is used to gather the beating number of times of correspondence loom, and it is described that first timer is used for
The cloth real-time timing of collection long of each yield collecting device, the arithmetic logic device and the memory, the beating time
Number collector and first timer are connected respectively, and calculating correspondence loom production cloth hourly is long, and the correspondence loom is every
The product of a length of default loom filling density beating number of times hourly with corresponding loom of production cloth of hour；
Each operational efficiency collecting device includes that stop over number of times collector, latitude stop number of times collector, the second timer and Wei Chu
Reason device, the stop over number of times collector is used to gather the stop over number of times of correspondence loom, and the latitude stops number of times collector for gathering
The latitude of correspondence loom stops number of times, and second timer is used to be adopted for the operational efficiency of each operational efficiency collecting device
Collect real-time timing, the microprocessor stops number of times collector and second timing with the stop over number of times collector, the latitude
Device is connected respectively, and the stop over number of times based on correspondence loom hourly stops the operational efficiency of the number of times corresponding loom of calculating with latitude；
The personnel information acquisition equipment includes multiple images identifier and an adder, and each image recognizer is located at institute
State the different corners position top of spinning and weaving workshop, the current quantity for gathering the various people in responsible region；
Each image recognizer includes image acquisition units, pretreatment unit, personnel's cutting unit and template matches unit, institute
Image acquisition units are stated for the area image in the responsible region for gathering image recognizer where it, the pretreatment unit with
Described image collecting unit is connected, for being performed at gray processing and self adaptation recursive filtering successively in order to the area image
Reason, to export filtered image, personnel's cutting unit is connected respectively with the memory and the pretreatment unit, with
Pixel by gray value in filtered image between personnel's upper limit gray threshold and personnel's lower limit gray threshold
Multiple personnel's subgraphs are recognized and constitute, the template matches unit connects respectively with the memory and personnel's cutting unit
Connect, each personnel's subgraph matched one by one with the image template of the various people, the match is successful then determine it is described every
The corresponding personnel's type of one personnel's subgraph, it fails to match then determine described each personnel's subgraph it is corresponding be stranger
Member, the adder is connected with the template matches unit of each image recognizer, adds up the current quantity of various people, described
Various people include Migrant women and different classes of operating personnel；
The computerized equipment and memory, the arithmetic logic device of each yield collecting device, each operation effect
The microprocessor and adder of rate collecting device are connected respectively, are less than or equal to when the production cloth that there is the output of arithmetic logic device is long
During predetermined minimum cloth threshold value long, send loom and weave cotton cloth quantity abnormal alarm signal, when the operational efficiency that there is microprocessor output
During less than or equal to predetermined minimum operational efficiency, loom running status abnormal alarm signal is sent, as all kinds of people of adder output
Group current quantity in Migrant women quantity non-zero when, send stranger's intrusion alarm signal；
Wherein, the wireless communication interface is connected with the computerized equipment, is weaved cotton cloth quantity with transmitting wirelessly the loom
Abnormal alarm signal, the loom running status abnormal alarm signal or stranger's intrusion alarm signal, are additionally operable to wirelessly connect
Receive the control signal that spinning and weaving workshop management platform sends；
Power supply, is connected with the computerized equipment, for being described under the control of the computerized equipment
Electronic equipment in data collecting system in addition to the power supply provides power supply supply；
The wireless communication interface is in GPRS mobile communication interfaces, 3G mobile communication interfaces or 4G mobile communication interfaces
Kind.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710250829.0A CN106896769A (en) | 2017-04-18 | 2017-04-18 | A kind of spinning and weaving workshop real-time data acquisition system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710250829.0A CN106896769A (en) | 2017-04-18 | 2017-04-18 | A kind of spinning and weaving workshop real-time data acquisition system |
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| CN106896769A true CN106896769A (en) | 2017-06-27 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201710250829.0A Pending CN106896769A (en) | 2017-04-18 | 2017-04-18 | A kind of spinning and weaving workshop real-time data acquisition system |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110378625A (en) * | 2019-08-30 | 2019-10-25 | 安徽省安泰科技股份有限公司 | A kind of processing workshop energy management system based on data analysis |
| CN111208790A (en) * | 2020-01-13 | 2020-05-29 | 中船第九设计研究院工程有限公司 | Data acquisition system for ship pipeline production line |
-
2017
- 2017-04-18 CN CN201710250829.0A patent/CN106896769A/en active Pending
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110378625A (en) * | 2019-08-30 | 2019-10-25 | 安徽省安泰科技股份有限公司 | A kind of processing workshop energy management system based on data analysis |
| CN111208790A (en) * | 2020-01-13 | 2020-05-29 | 中船第九设计研究院工程有限公司 | Data acquisition system for ship pipeline production line |
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Application publication date: 20170627 |