CN112553767B - Hosiery machine data acquisition system - Google Patents
Hosiery machine data acquisition system Download PDFInfo
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- CN112553767B CN112553767B CN202011232103.2A CN202011232103A CN112553767B CN 112553767 B CN112553767 B CN 112553767B CN 202011232103 A CN202011232103 A CN 202011232103A CN 112553767 B CN112553767 B CN 112553767B
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- D—TEXTILES; PAPER
- D04—BRAIDING; LACE-MAKING; KNITTING; TRIMMINGS; NON-WOVEN FABRICS
- D04B—KNITTING
- D04B15/00—Details of, or auxiliary devices incorporated in, weft knitting machines, restricted to machines of this kind
- D04B15/66—Devices for determining or controlling patterns ; Programme-control arrangements
- D04B15/68—Devices for determining or controlling patterns ; Programme-control arrangements characterised by the knitting instruments used
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Abstract
The invention provides a hosiery machine data acquisition system, which comprises: the system comprises at least one data acquisition device, a control device and a control device, wherein the data acquisition device is electrically connected with the hosiery machine and is used for carrying out data sampling on data received or sent by each part of the hosiery machine to obtain sampling data; and the server is in communication connection with the data acquisition device and is used for acquiring the sampling data, processing the sampling data to acquire effective data, and performing induction analysis on the effective data to acquire visual information. The hosiery machine data acquisition system utilizes an optical recognition technology OCR (optical Character recognition) to perform OCR recognition processing and classification on data displayed in a hosiery machine screen to form effective data.
Description
Technical Field
The invention relates to the technical field of data acquisition, in particular to a hosiery machine data acquisition system.
Background
At present, most of domestic silk stocking knitting machines adopt imported Lunnati brand knitting machines, and due to the fact that the system is closed and no corresponding communication interface is used for data acquisition (data interaction is carried out by using a specified communication protocol), when a factory has a plurality of Lunnati hosiery machines, more workers are needed for maintenance processing and corresponding data are recorded manually.
Disclosure of Invention
One of the purposes of the invention is to provide a hosiery machine data acquisition system, which utilizes an optical recognition technology OCR (optical Character recognition) to perform OCR recognition processing and classification on data displayed on a hosiery machine screen to form effective data.
The embodiment of the invention provides a hosiery machine data acquisition system, which comprises:
the system comprises at least one data acquisition device, a control device and a control device, wherein the data acquisition device is electrically connected with the hosiery machine and is used for carrying out data sampling on data received or sent by each part of the hosiery machine to obtain sampling data;
and the server is in communication connection with the data acquisition device and is used for acquiring the sampling data, processing the sampling data to acquire effective data, and performing induction analysis on the effective data to acquire visual information.
Preferably, the data acquisition device comprises:
the first data acquisition module is used for acquiring screen display data of the hosiery machine;
the data transmission module is used for being in communication connection with the server;
the controller is respectively electrically connected with the first data acquisition module and the data transmission module, acquires screen display data through the first data acquisition module, preprocesses the screen display data to acquire sampling data, and sends the sampling data to the server through the data transmission module.
Preferably, hosiery machine data acquisition system still includes: the second data acquisition module is electrically connected with the controller and used for acquiring the operating data of the hosiery machine;
the controller acquires the operation data through the second data acquisition module, preprocesses the operation data to acquire sampling data, and sends the sampling data to the server through the data transmission module.
Preferably, the valid data includes:
and one or more of yield information, fault information, operating program name information and needle number information are combined.
Preferably, the first data acquisition module includes:
the first data interface is connected with a data interface of a control unit of the hosiery machine, which is used for connecting a display unit of the hosiery machine, and is used for acquiring original screen display data of the hosiery machine;
the data copying unit is connected with the first data interface and is used for copying original screen display data of the hosiery machine to form a plurality of copied screen display data;
the second data interface is connected with the data interface of the display unit of the hosiery machine and used for transmitting the copied screen display data to the display unit;
and the third data interface is connected with the controller and is used for transmitting the copied screen display data to the controller.
Preferably, the second data acquisition module includes: one or more of RJ45 interface, RS232 interface and RS485 interface.
Preferably, hosiery machine data acquisition system still includes: the mobile terminals are respectively in communication connection with the server; the mobile terminal is used by a maintainer, and the mobile terminal corresponds to the maintainer one by one;
the data acquisition device further includes: a positioning module;
the server performs the following operations:
analyzing the effective data to determine whether the hosiery machine has a fault;
when a fault occurs, acquiring first positioning information of a data acquisition device of a data source corresponding to the effective data, and determining a first position of the failed hosiery machine based on the first positioning information;
acquiring the operation state of a maintainer through a mobile terminal;
when the operation states of all the mobile terminals are on duty and idle, second positioning information is obtained through all the mobile terminals; when the second positioning information is in the preset area, determining a second position of each maintainer based on the second positioning information; calculating a first distance from the second position of each maintainer to the first position of the failed hosiery machine, and sending the first position of the failed hosiery machine to the mobile terminal of the maintainer with the smallest first distance;
when the operation state of the mobile terminal is in operation, acquiring first fault data of the hosiery machine which is maintained by a maintainer and corresponds to the mobile terminal in operation;
acquiring second fault data of the failed hosiery machine;
comparing the second fault data with the first fault data;
when the second fault data is similar to the first fault data, acquiring a third position of the hosiery machine, corresponding to the mobile terminal in operation, of the maintenance operation of a maintainer; when a second distance between the third position and the first position is smaller than or equal to a preset first distance value, the first position of the hosiery machine with the fault is sent to a mobile terminal in operation;
when the second fault data is not similar to the first fault data, second positioning information of the mobile terminal in the working state of on-duty and idle is acquired; when the second positioning information is in the preset area, determining a second position of each maintainer based on the second positioning information; and calculating a first distance from the second position of each maintainer to the first position of the failed hosiery machine, and transmitting the first position of the failed hosiery machine to the mobile terminal of the maintainer with the smallest first distance.
Preferably, the server further performs the following operations:
acquiring a first position of the failed hosiery machine;
determining a maintenance area based on the first location;
when the mobile terminal receiving the first position of the failed hosiery machine enters a maintenance area and stays for a preset first time, changing the operation state of the mobile terminal into operation, and binding the failed hosiery machine with the mobile terminal;
and/or the presence of a gas in the gas,
monitoring a maintenance area after the failed hosiery machine is bound with the mobile terminal, and when other mobile terminals enter the maintenance area;
acquiring a second distance between the bound mobile terminal and other mobile terminals entering a maintenance area; when the second distance is smaller than a preset second distance value, entering a maintenance service switching mode;
and after entering a maintenance service transfer mode, the bound mobile terminal leaves the maintenance area within a preset second time, and when other mobile terminals stay in the maintenance area, the bound mobile terminal is unbound with the failed hosiery machine, and the other mobile terminals are bound with the failed hosiery machine.
Preferably, the server further performs the following operations:
when the hosiery machine is determined to be maintained through the effective data corresponding to the sampling data acquired by the data acquisition device corresponding to the failed hosiery machine,
sending a preset maintenance report to a mobile terminal bound with the failed hosiery machine;
receiving maintenance data of the maintenance report sent by the mobile terminal;
the maintenance report forms correspond to the types of the hosiery machines and the types of maintenance faults one to one; the type of the maintenance fault is determined by analyzing fault data; the maintenance data includes: one or more combinations of maintenance items, maintenance tools, failure causes and maintenance use accessories.
The invention has the following beneficial effects:
firstly, practice thrift the cost of labor, originally the data that will record need artifical hand input from each lina di hosiery machine, and each lina di hosiery machine data directly forms the report form now, very big reduction production management cost.
And secondly, resource allocation is optimized, the equipment state is displayed in real time, and the outage rate is reduced.
And thirdly, a new data acquisition idea is provided for data acquisition of some special equipment.
Additional features and advantages of the invention will be set forth in the description which follows, and in part will be obvious from the description, or may be learned by practice of the invention. The objectives and other advantages of the invention will be realized and attained by the structure particularly pointed out in the written description and claims hereof as well as the appended drawings.
The technical solution of the present invention is further described in detail by the accompanying drawings and embodiments.
Drawings
The accompanying drawings, which are included to provide a further understanding of the invention and are incorporated in and constitute a part of this specification, illustrate embodiments of the invention and together with the description serve to explain the principles of the invention and not to limit the invention. In the drawings:
FIG. 1 is a schematic view of a hosiery machine data acquisition system in an embodiment of the invention;
fig. 2 is a schematic view of another hosiery machine data acquisition system in an embodiment of the invention.
In the figure:
1. a data acquisition device; 2. a server; 3. a mobile terminal.
Detailed Description
The preferred embodiments of the present invention will be described in conjunction with the accompanying drawings, and it will be understood that they are described herein for the purpose of illustration and explanation and not limitation.
The embodiment of the invention provides a hosiery machine data acquisition system, as shown in figure 1, comprising:
the system comprises at least one data acquisition device 1, a control device and a control device, wherein the data acquisition device 1 is electrically connected with the hosiery machine and is used for carrying out data sampling on data received or sent by each part of the hosiery machine to obtain sampling data;
and the server 2 is in communication connection with the data acquisition device 1 and is used for acquiring the sampling data, processing the sampling data to acquire effective data, and performing induction analysis on the effective data to acquire visual information.
The working principle and the beneficial effects of the technical scheme are as follows:
install data acquisition device 1 additional on the hosiery machine, server 2 acquires the sampling data that the data that transmit corresponds between each part in the hosiery machine through the data acquisition device 1 who installs additional, handles the analysis to the sampling data, realizes monitoring the state of each part of hosiery machine to acquire the effective data to production according to the sampling data, and carry out the analysis of integrating with the effective data and acquire visual information.
In one embodiment, the data acquisition apparatus 1 includes:
the first data acquisition module is used for acquiring screen display data of the hosiery machine;
the data transmission module is used for being in communication connection with the server 2;
the controller is respectively electrically connected with the first data acquisition module and the data transmission module, acquires screen display data through the first data acquisition module, preprocesses the screen display data to acquire sampling data, and sends the sampling data to the server 2 through the data transmission module.
The working principle and the beneficial effects of the technical scheme are as follows:
the data displayed by the hosiery machine screen comprise: the method comprises the following steps that program name information and yield information used by the hosiery machine, and fault information is also included when a fault occurs; the first data acquisition module acquires screen display data of the hosiery machine, and performs OCR (optical Character recognition) processing and classification on the data displayed in the screen of the hosiery machine by utilizing an OCR (optical Character recognition) technology to form effective data. Effective data comprises equipment yield information, fault information, program name information, needle number information and the like, and then secondary development is carried out, management software is formed to carry out management, recording and maintenance in a unified mode, the management cost of the data is greatly reduced, the management efficiency is greatly improved, and the breakthrough of zero-to-one data acquisition of the Lunna Di sock machine is realized.
In one embodiment, hosiery machine data acquisition system, still includes: the second data acquisition module is electrically connected with the controller and used for acquiring the operating data of the hosiery machine;
the controller acquires the operation data through the second data acquisition module, preprocesses the operation data to acquire sampling data, and transmits the sampling data to the server 2 through the data transmission module.
The working principle and the beneficial effects of the technical scheme are as follows:
In one embodiment, the valid data includes:
and one or more of yield information, fault information, operating program name information and needle number information are combined.
In one embodiment, the first data acquisition module comprises:
the first data interface is connected with a data interface of a control unit of the hosiery machine, which is used for connecting a display unit of the hosiery machine, and is used for acquiring original screen display data of the hosiery machine;
the data copying unit is connected with the first data interface and is used for copying original screen display data of the hosiery machine to form a plurality of copied screen display data;
the second data interface is connected with the data interface of the display unit of the hosiery machine and used for transmitting the copied screen display data to the display unit;
and the third data interface is connected with the controller and is used for transmitting the copied screen display data to the controller.
The working principle and the beneficial effects of the technical scheme are as follows:
the method comprises the following steps of developing by adopting an HDMI interface, extracting HDMI signals of the Luonadi hosiery machine and expanding the interface, and dividing the original HDMI interface into two parts; interface expansion, namely expanding the interface of the PC board; the OCR optical recognition technology processes the HDMI signal source into required data information.
In one embodiment, the second data acquisition module comprises: one or more of RJ45 interface, RS232 interface and RS485 interface.
The integration comprises common communication protocols of the hosiery machine equipment, such as TCP/IP, RS232 and RS485, so that the communication can be realized by covering most hosiery machines in a plug-and-play manner; data transmission with the hosiery machine is realized through one of an RJ45 interface, an RS232 interface and an RS485 interface.
In one embodiment, as shown in fig. 2, the hosiery machine data acquisition system further includes: the mobile terminals 3 are respectively in communication connection with the server 2; the mobile terminal 3 is used by a maintainer, and the mobile terminal 3 corresponds to the maintainer one by one; the mobile terminal 3 is used for realizing the quick release of the maintenance tasks when the hosiery machine breaks down and the quick uploading of the maintenance data.
The data acquisition apparatus 1 further includes: a positioning module;
the server 2 performs the following operations:
analyzing the effective data to determine whether the hosiery machine has a fault;
when a fault occurs, acquiring first positioning information of the data acquisition device 1 of a data source corresponding to the effective data, and determining a first position of the failed hosiery machine based on the first positioning information;
acquiring the operation state of a maintainer through a mobile terminal;
when all the mobile terminals 3 are in work and idle, acquiring second positioning information through each mobile terminal 3; when the second positioning information is in the preset area, determining a second position of each maintainer based on the second positioning information; calculating a first distance from the second position of each maintainer to the first position of the failed hosiery machine, and sending the first position of the failed hosiery machine to the mobile terminal 3 of the maintainer with the smallest first distance;
when the operation state of the mobile terminal 3 is in operation, acquiring first fault data of the hosiery machine which is maintained by a maintainer and corresponds to the mobile terminal 3 in operation;
acquiring second fault data of the failed hosiery machine;
comparing the second fault data with the first fault data;
when the second fault data is similar to the first fault data, acquiring a third position of the hosiery machine, which is maintained by a maintainer and corresponds to the mobile terminal 3 in operation; when the second distance between the third position and the first position is smaller than or equal to a preset first distance value, the first position of the failed hosiery machine is sent to the mobile terminal 3 in operation;
when the second fault data is not similar to the first fault data, acquiring second positioning information of the mobile terminal 3 which is in the working state and is idle; when the second positioning information is in the preset area, determining a second position of each maintainer based on the second positioning information; calculates the first distance from the second position of each serviceman to the first position of the malfunctioning hosiery machine and transmits the first position of the malfunctioning hosiery machine to the mobile terminal 3 of the serviceman whose first distance is the smallest.
The working principle and the beneficial effects of the technical scheme are as follows:
when the hosiery machine is in fault, the position information of the failed hosiery machine is sent to the mobile terminal 3 of the nearest maintainer; the hosiery machine fault can be maintained more quickly. In addition, when the hosiery machine is in fault maintenance, the maintenance tools used by different faults are different, when the hosiery machine is in fault, the position of the hosiery machine is pushed to a maintenance person who maintains the same fault for maintenance, so that the maintenance person does not need to go to the tools again, and meanwhile, the taking parts can be taken out together during maintenance, thereby improving the maintenance efficiency.
In one embodiment, the server 2 further performs the following operations:
acquiring a first position of the failed hosiery machine;
determining a maintenance area based on the first location;
when the mobile terminal 3 receiving the first position of the failed hosiery machine enters the maintenance area and stays for a preset first time, changing the operation state of the mobile terminal 3 into operation, and binding the failed hosiery machine with the mobile terminal 3;
and/or the presence of a gas in the gas,
monitoring a maintenance area after the failed hosiery machine is bound with the mobile terminal 3, and when other mobile terminals 3 enter the maintenance area;
acquiring a second distance between the bound mobile terminal 3 and other mobile terminals 3 entering a maintenance area; when the second distance is smaller than a preset second distance value, entering a maintenance service switching mode;
after entering the maintenance service transfer mode, the mobile terminal 3 bound within the preset second time leaves the maintenance area and when other mobile terminals 3 stay in the maintenance area, the bound mobile terminal 3 and the failed hosiery machine are unbound, and the other mobile terminals 3 and the failed hosiery machine are bound.
The working principle and the beneficial effects of the technical scheme are as follows:
when a maintenance person receives the first position of the failed hosiery machine through the mobile terminal 3, the mobile terminal 3 is bound with the hosiery machine when entering a maintenance area determined based on the first position, the server 2 is convenient to send various data of the failed hosiery machine, and the maintenance person can conveniently maintain the hosiery machine; and a maintenance report can be conveniently uploaded by a maintainer. In addition, when a maintenance person who enters in advance finds that the fault of the faulty hosiery machine exceeds the maintenance range and hands over the fault to the maintenance which can be processed, the server 2 automatically realizes the switching of the binding relationship according to the relationship between the mobile terminals 3 of the two maintenance persons and the maintenance area. Wherein the first position is stored in the server 2 in one-to-one correspondence with the maintenance area.
In one embodiment, the server 2 also performs the following operations:
when the hosiery machine is determined to be maintained through the effective data corresponding to the sampling data acquired by the data acquisition device 1 corresponding to the failed hosiery machine,
sending a preset maintenance report to a mobile terminal 3 bound with the failed hosiery machine;
receiving maintenance data for the maintenance report sent by the mobile terminal 3;
the maintenance report forms correspond to the types of the hosiery machines and the types of maintenance faults one to one; the type of the maintenance fault is determined by analyzing fault data; the maintenance data includes: one or more combinations of maintenance items, maintenance tools, failure causes and maintenance use accessories.
The working principle and the beneficial effects of the technical scheme are as follows:
when the fault is repaired, the server 2 sends a maintenance report of the fault, and maintenance personnel upload maintenance data based on the maintenance report. Furthermore, the maintenance report can be filled in by voice, that is, the mobile terminal 3 broadcasts each item of the maintenance report in sequence, and obtains the voice of the maintenance data of the maintenance staff within a certain period of time; and the maintenance report can be quickly filled and reported, and the maintenance processing efficiency is improved.
It will be apparent to those skilled in the art that various changes and modifications may be made in the present invention without departing from the spirit and scope of the invention. Thus, if such modifications and variations of the present invention fall within the scope of the claims of the present invention and their equivalents, the present invention is also intended to include such modifications and variations.
Claims (7)
1. A hosiery machine data acquisition system, characterized by comprising:
the system comprises at least one data acquisition device (1) which is electrically connected with the hosiery machine and is used for carrying out data sampling on data received or sent by each component of the hosiery machine to obtain sampling data;
the server (2) is in communication connection with the data acquisition device (1) and is used for acquiring the sampling data, processing the sampling data to acquire effective data, and carrying out inductive analysis on the effective data to acquire visual information;
the data acquisition device (1) comprises:
the first data acquisition module is used for acquiring screen display data of the hosiery machine;
the data transmission module is used for being in communication connection with the server (2);
the controller is respectively and electrically connected with the first data acquisition module and the data transmission module, acquires the screen display data through the first data acquisition module, preprocesses the screen display data to acquire sampling data, and sends the sampling data to the server (2) through the data transmission module;
the first data acquisition module comprises:
the first data interface is connected with a data interface of a control unit of the hosiery machine, which is used for connecting a display unit of the hosiery machine, and is used for acquiring original screen display data of the hosiery machine;
the data copying unit is connected with the first data interface and is used for copying original screen display data of the hosiery machine to form a plurality of copied screen display data;
the second data interface is connected with the data interface of the display unit of the hosiery machine and used for transmitting one copied screen display data to the display unit;
and the third data interface is connected with the controller and is used for transmitting the copied screen display data to the controller.
2. The hosiery machine data acquisition system of claim 1, further comprising: the second data acquisition module is electrically connected with the controller and used for acquiring the operating data of the hosiery machine;
the controller acquires the operating data through the second data acquisition module, preprocesses the operating data to acquire sampling data, and sends the sampling data to the server (2) through the data transmission module.
3. The hosiery machine data acquisition system of claim 1, wherein the valid data includes:
and one or more of yield information, fault information, operating program name information and needle number information are combined.
4. The hosiery machine data acquisition system of claim 2, wherein the second data acquisition module includes: one or more of RJ45 interface, RS232 interface and RS485 interface.
5. The hosiery machine data acquisition system of claim 1, further comprising: the mobile terminals (3) are respectively in communication connection with the server (2); the mobile terminal (3) is used by a maintainer, and the mobile terminal (3) corresponds to the maintainer one by one;
the data acquisition device (1) further comprises: a positioning module;
the server (2) performs the following operations:
analyzing the effective data to determine whether the hosiery machine has a fault;
when a fault occurs, acquiring first positioning information of the data acquisition device (1) of a data source corresponding to the effective data, and determining a first position of the failed hosiery machine based on the first positioning information;
acquiring the operation state of the maintainer through the mobile terminal;
when the operation states of all the mobile terminals (3) are on duty and idle, second positioning information is obtained through each mobile terminal (3); when the second positioning information is in a preset area, determining a second position of each serviceman based on the second positioning information; -calculating a first distance from the second position of each of the maintenance personnel to the first position of the malfunctioning hosiery machine, sending the first position of the malfunctioning hosiery machine to the mobile terminal (3) of the maintenance personnel of which the first distance is the smallest;
when the operation state of the mobile terminal (3) is in operation, acquiring first fault data of the hosiery machine which is maintained by a maintainer corresponding to the mobile terminal (3) in operation;
acquiring second fault data of the failed hosiery machine;
comparing the second fault data with the first fault data;
when the second fault data is similar to the first fault data, acquiring a third position of the hosiery machine which is maintained by a maintainer corresponding to the mobile terminal (3) in operation; when a second distance between the third position and the first position is smaller than or equal to a preset first distance value, sending the first position of the failed hosiery machine to the mobile terminal (3) in operation;
when the second fault data is not similar to the first fault data, second positioning information of the mobile terminal (3) in an idle working state is acquired; when the second positioning information is in a preset area, determining a second position of each serviceman based on the second positioning information; -calculating a first distance from the second position of each of the maintenance personnel to the first position of the malfunctioning hosiery machine, -sending the first position of the malfunctioning hosiery machine to the mobile terminal (3) of the maintenance personnel of which the first distance is the smallest.
6. Hosiery machine data acquisition system according to claim 5, characterized in that the server (2) also performs the following operations:
acquiring a first position of the failed hosiery machine;
determining a maintenance area based on the first location;
when the mobile terminal (3) which receives the first position of the failed hosiery machine enters the maintenance area and stays for a preset first time, changing the operation state of the mobile terminal (3) into operation, and binding the failed hosiery machine with the mobile terminal (3);
and/or the presence of a gas in the gas,
monitoring the maintenance area after the failed hosiery machine is bound with the mobile terminal (3), and when other mobile terminals (3) enter the maintenance area;
acquiring a second distance between the bound mobile terminal (3) and other mobile terminals (3) entering the maintenance area; when the second distance is smaller than a preset second distance value, entering a maintenance service switching mode;
after entering a maintenance service transfer mode, the mobile terminal (3) bound in a preset second time leaves the maintenance area, and when other mobile terminals (3) stay in the maintenance area, the mobile terminal (3) bound is unbound to the broken hosiery machine, and the other mobile terminals (3) are bound to the broken hosiery machine.
7. Hosiery machine data acquisition system according to claim 6, characterized in that the server (2) also performs the following operations:
when the hosiery machine is determined to be maintained through the effective data corresponding to the sampling data acquired by the data acquisition device (1) corresponding to the failed hosiery machine,
sending a preset maintenance report to the mobile terminal (3) bound with the failed hosiery machine;
receiving maintenance data for the maintenance report sent by the mobile terminal (3);
the maintenance report forms correspond to the types of the hosiery machines and the types of maintenance faults one to one; the type of the maintenance fault is determined by analyzing fault data; the repair data includes: one or more combinations of maintenance items, maintenance tools, failure causes and maintenance use accessories.
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| CN201347479Y (en) * | 2009-01-06 | 2009-11-18 | 浙江三鼎织造有限公司 | Webbing loom with data acquisition function |
| CN103220188A (en) * | 2013-04-11 | 2013-07-24 | 江苏中科惠软信息技术有限公司 | Hyper text transport protocol (HTTP) data acquisition equipment |
| CN109947810A (en) * | 2017-11-16 | 2019-06-28 | 上海明匠智能系统有限公司 | Industrial equipment data real-time collecting system |
| CN108588999A (en) * | 2018-07-03 | 2018-09-28 | 浙江理工大学 | A kind of Internet Server system and its control method that knitted dress is standby |
| CN110306287A (en) * | 2019-06-21 | 2019-10-08 | 西安工程大学 | Hosiery machine knitting needle joint-detection device and method based on laser and machine vision |
| CN210721097U (en) * | 2019-11-12 | 2020-06-09 | 杭州易闻科技有限公司 | Data management and control system for Luna di sock machine equipment |
| CN111679642A (en) * | 2020-06-28 | 2020-09-18 | 海盐金门袜业有限公司 | Internet of things system for sock production |
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