WO2007090318A1

WO2007090318A1 - System and method of improving the product by using rfid device

Info

Publication number: WO2007090318A1
Application number: PCT/CN2006/001560
Authority: WO
Inventors: Wai Man Stephen Cheung
Original assignee: Msc Limited
Priority date: 2006-02-06
Filing date: 2006-07-04
Publication date: 2007-08-16
Also published as: CN101017539A; HK1081393A2

Abstract

The present invention discloses a system and method of improving the product by using RFID device. RFID network which comprises a number of readers, controller, exchanger ,and server etc is disposed in the factory. Worker ID RFID card and component RFID card are inserted into the reader, whereby , information thereof is read, then sent to the controller, server receives the collected product line information from the controller, to makes classify and statistics based the said information. According to the statistics, the server rematches the relationship between component RFID card and component numer , reallocates work flow , generates work history information of the worker, and calculates the standard completion time of the component, so that identifies work neck of the product line.The invention collects data on the product line in real time, achieves product line balance, improves productive efficiency, moreover, eliminates the need that the worker collects paper ticket, and reduces workload of manager and finance operator calculating the ticket.

Description

System and method for improving production using radio frequency identification devices

Technical field

The present invention relates to a radio frequency identification (RFID) application technology on a production line, and more particularly to a radio frequency identification application technique for monitoring a plurality of workstations on a production line and collecting man-hours. Background technique

In the current industrialized mass production, especially in the manufacturing process, there are many problems such as inaccurate production data collection and difficulty in managing the work flow.

For example, in garment production operations, garment workers currently use a work ticket tied to a cut semi-finished workpiece to record production data. The work content related to the production process, and other information is pre-printed on these work tickets, and after completing a specific part of the work or tasks on multiple workstations, the employee who performs the work or task cuts the work ticket and Sign the name.

As shown in Figure 1, a schematic diagram of the process of collecting production process data using existing work tickets. In the entire plant 100, it is first necessary to design a workflow in the office, integrate the customized workflow into the ticket management system (step 101), and then print the tickets in batches (step 102). Thereafter, in the cutting room, a cutting ticket is issued (step 103), and the ticket is tied and tied (step 104). In the sewing workshop, it is first determined whether it is a bar code ticket (step 105), and if so, it is necessary to scan the bar code ticket before or after sewing (step 106), and if not, the worker cuts the actual operation according to the completion of the operation. The paper ticket (step 107), and then the worker submits the ticket to the finance department (step 108).

However, one of the shortcomings of this approach is that employees must collect all the tickets at the end of a specific fixed period of the week or month or fixed time period, and the work recorded by the factory through these tickets. Data to account for their salary and other expenses. These are Affects the efficiency of the production line and the management of the process.

In addition, the existing production line cannot provide real-time status information of all the workpieces currently being produced, as well as other data in each process, which makes it impossible to monitor the production status, manage the production process, and cannot identify production bottlenecks and Targeted process adjustments and redeployments make it impossible to accurately calculate current production efficiencies. Moreover, in the process of calculating employee salaries and other expenses, it is necessary to process a large number of tickets provided by employees, which is a rather arduous task.

However, on the other hand, radio frequency identification (RFID) technology has been used in a variety of applications. For example, a radio frequency identification tag can be affixed to an item and then scanned or read to obtain information about the item.

Therefore, how to collect data in the production process by radio frequency identification technology and implement process management has become a problem that needs to be solved in the industry for a long time. Summary of the invention

The technical problem to be solved by the present invention is to provide a system and method for improving production using a radio frequency identification device, collecting production data in a production process by radio frequency identification technology, and thereby improving production management.

In order to solve the above technical problem, the present invention provides a radio frequency identification system for collecting production line data in real time, including:

Employee identity RFID card, card information represents information related to employee identity; Workpiece RFID card for attachment (eg tying or sticking or placing in a product box, etc.) on semi-finished workpieces, card information Represents information associated with the corresponding workpiece;

The card reader, corresponding to different employee positions on different workstations, is used to read information of the employee identity RFID card and the workpiece RFID card according to the operation of the employee;

a controller, configured to control the card reader to read the radio frequency card information, and transmit the obtained information to the controller;

a server for collecting production line information uploaded by the controller and entering the information Row classification statistics.

The invention may further comprise:

A hub for connecting a plurality of card readers to the controller, the information read by the card reader being transmitted to the controller via the hub. Among them, each reader is connected to the hub through its respective feeder cable (using the feeder cable to supply power and transmit traffic data on the same line), and the hub only needs one feeder cable to connect to the controller, so that , making the networking method very simple and flexible.

The invention may further comprise:

An Ethernet switch for connecting a plurality of controllers to a server, the controller transmitting the acquired production line information to the server via an Ethernet switch.

The card reader may further include a display module, configured to display the work history of the employee according to the information in the RFID card of the current employee identity read and the production data of the employee collected by the server. information.

The controller may be further configured to control the card reader to periodically read the RF card information and transmit the acquired information to the controller.

The card reader includes one or two or more slots for respectively housing the employee identity RFID card and the workpiece RFID card.

The employee identification radio frequency identification card, the workpiece radio frequency identification card, and the card reader respectively have unique serial numbers.

Wherein, each device of the system may be connected by a multi-core prefabricated cable, the multi-core prefabricated cable includes an uplink signal line, a downlink signal line, and a ground line, and each of the uplink and downlink The ground wire provides at least one spare line. The invention further provides a method for real-time collecting production line data by using a radio frequency identification card, including:

Configuring an employee ID card for each employee;

Configuring a workpiece for each workpiece according to different process requirements on the production line Card

Configure a card reader for each job;

The employee identification radio frequency identification card is read by the worker using a card reader corresponding to the job to which it is assigned;

The worker reads the workpiece radio frequency identification card corresponding to the assigned workpiece by the worker before processing the assigned workpiece;

The information in the employee identification RFID card and the workpiece RFID card is read by the reader and sent to the server for classification and statistics.

The invention may further comprise - when the worker finishes processing the assigned workpiece, reattaching the RFID tag of the workpiece to the workpiece.

The invention may further comprise:

The workpiece that is reattached to the workpiece RFID card is shipped to the next job. The invention may further comprise:

The server determines whether there is a replacement of the workpiece radio frequency identification card according to the information of the workpiece radio frequency identification card read by the card reader and the currently read information, and records the range from entering the card reader by recording a radio frequency identification card. Determine the processing time of the workpiece at the current position by the duration of the reading range of the reader, and determine the idleness of the corresponding device/worker by recording the duration from time when the card reader never recognizes until the identification of the RFID card is recognized. time.

The invention may further comprise:

The server re-matches the relationship between the workpiece radio frequency identification card and the workpiece group number according to the situation of completing the workpiece in each job;

The process is redistributed according to the rematching relationship.

The information in the employee identification radio frequency identification card and the workpiece radio frequency identification card is periodically read by the card reader.

The invention may further comprise:

The information in the RFID card of the employee identity read by the server, and The employee's production data is counted, and the employee's work history information is calculated and sent to the corresponding card reader display. The present invention further provides a method for recording an employee's work history in real time using a radio frequency identification card, including:

Before processing the assigned workpiece, the worker places the workpiece radio frequency identification card assigned to the workpiece within the reading range of the card reader, and reads the workpiece radio frequency identification card from the card reader after the processing is completed. Scope

The information in the employee identification RFID card and the workpiece RFID card is read by the card reader and sent to the server;

The server records the operation time of the worker for different workpieces, and generates work history information of the worker accordingly. The server records the operating time for a workpiece by calculating the time that a RF card is continuously read by the reader.

Wherein, when the workpiece radio frequency identification card leaves the reading range of the card reader, it indicates that the current work of the post has been completed, and a new job can be performed in the post.

The invention may further include - the server generating corresponding financial data based on the work history information of the worker.

The invention may further comprise:

The server transmits the generated history information of the worker to a corresponding card reader display.

The invention may further comprise:

The server sends the generated financial data of the worker to a corresponding card reader display.

The invention may further comprise:

The server compares the information of the workpiece radio frequency identification card read by the card reader last time. The currently read information determines whether there is a replacement of the workpiece radio frequency identification card. The invention further provides a method for determining the standard completion time of the workpiece by using the radio frequency identification card, including:

The server calculates the average processing time as the standard completion time of the workpiece according to the statistics of the processing time of different workers on the same type of workpiece.

Wherein, the server records the time when the workpiece radio frequency identification card starts to be read by the card reader as "work start time", and records the time when the workpiece radio frequency identification card leaves the reading range of the card reader as "work completion time", according to The "work start time" and the "work completion time" can calculate the average time, the longest time, and the shortest time for processing the workpiece.

The server may determine whether there is a replacement of the workpiece radio frequency identification card according to the information of the workpiece radio frequency identification card read by the card reader and the currently read information, by recording a radio frequency identification card from entering to leaving the card reader. The duration of the read range is determined, the processing time of the workpiece at the current position is determined, and the idle time of the corresponding device/worker is determined by recording the duration from time when the card reader never recognizes until the identification of the RFID card.

In addition, a "free card" can be assigned to each worker or each card reader location that represents the job. When the worker needs to do something other than work, such as going to the bathroom or calling, The free card is read by the card reader and then removed after being returned. In this way, the system can calculate the productivity of a worker or the entire production line. The present invention further provides a method for determining a bottleneck of a production line by using a radio frequency identification card, including: reading, by a worker, a personal identification RFID card by a card reader corresponding to a job to which it is assigned;

Before processing the assigned workpiece, the worker places the workpiece radio frequency identification card assigned to the workpiece within the reader reading range;

The server compares the processing time of the workpiece on a workstation with a preset processing time. If the current processing time exceeds the preset time, an alarm is generated. The invention realizes real-time collection of production data on the production line, and can further analyze the collected data to determine bottlenecks and defects in the production process, and at the same time, facilitate the statistics of employee compensation, and the server collects according to the collected data. An employee's work data can display the employee's work history information in real time on the card reader, eliminating the need for employees to collect traditional paper tickets, and eliminating the need for managers and financial staff to count tickets. Cost of work

BRIEF abstract

FIG. 1 is a schematic flow chart of collecting data of a production process by using a work ticket;

2 is a schematic diagram of connection of an RFID system according to an embodiment of the invention;

3 is a schematic diagram of a fully redundant core line according to an embodiment of the present invention;

4A-4L are schematic diagrams showing an exemplary screen display appearing on a user interaction control device according to an embodiment of the present invention;

5 is a schematic flow chart of production using a radio frequency card and a card reader according to an embodiment of the invention;

6 is a diagram showing the operation of dividing a bundle operation into a single piece operation according to an embodiment of the present invention. Schematic diagram of the production flexibility process;

7A-7C are schematic diagrams of a card reader according to an embodiment of the invention. Preferred embodiment of the invention

In the actual deployment of the plant, an RFID card reader can be set up on each workstation to record the start and end time of the work. At the same time, an RFID tag is attached to each set of semi-finished products, and when the semi-finished product is processed on the workbench, it is attached (the following is an example of the tying method, actually using the post-payment The information in the tag will be read by the reader at preset intervals. At the same time, multiple RFID hubs can be configured for many RFID readers.

The RF card can be divided into two types, one is the employee identification radio frequency identification card, the card information represents the information related to the employee's identity; the other is the workpiece radio frequency identification card, which is used for binding to the semi-finished product, the card information Represents information associated with the corresponding artifact.

Referring to FIG. 2, a schematic diagram of a connection of an RFID system according to an embodiment of the present invention includes a plurality of RFID readers 201A-201H, an RFID hub (HUB) 202, a controller 203, an Ethernet switch 204, and an RFID server 205.

The RFID card reader 201 is configured to collect data in the radio frequency card, send it to the controller 203 via the hub 202, and then pass through the Ethernet switch 204 to finally send the data to the server 205 for data analysis and data processing by the server 205. .

In fact, depending on the size of the plant, a large number of RFID readers can be set up, and multiple hubs, controllers, and switches can be set up according to the interface capabilities. Similarly, for smaller plants, devices such as hubs may not be deployed.

The switch provides flexibility to the network structure, so a single switch can connect to multiple controllers, which are key devices in the system. The controller collects signals from the FID reader and sends them to the switch.

Although the hub is an optional device in the system, it also provides great networking flexibility for the system because the controller can indirectly connect multiple readers through the hub. · The card reader can be configured with one or two or more slots to accommodate the employee card and the RFID card attached to the workpiece during production. The packaged data is transmitted between the reader and the controller or hub, and the employee can confirm whether the data on the RF card has been successfully read from the flashing light on the reader.

In the actual networking, flexible by using power over data cable, standard RJ45 connector, 8-core pre-wired cable, fully redundant core wire, star connection, and reliable message mechanism. The formation of the network.

Among them, we only need to use power over data cable, so that the controller can supply power to the hub and its multiple readers. This structure does not require each card reader to have a power socket and converter. This network configuration is more efficient and less expensive on a production line consisting of multiple workstations.

FIG. 3 is a schematic diagram of a fully redundant core line according to an embodiment of the present invention. Among them, the ground line is connected to the common ground line, the upper line is used to transmit signals to the controller, and the down line is used to transmit signals from the controller to the card reader, and provides a power supply function. The fully redundant core includes at least one redundant line, which is the backup core for each signal. Therefore, signal line failure does not affect the entire system. According to the embodiment of the present invention, since only three functional cores are required to "up", "down" and "ground" to transmit signals, the system can operate normally even if five cores fail.

The standard RJ45 connector has a colored housing to differentiate the cable type. RJ45 connectors are widely used in various networking technologies, and their terminal processing does not need to be connected.

The RFID hub is mounted near the RFID reader cluster and is connected using a standard length 8-core pre-wired cable. Since the cost of the 8-core prefabricated cable is only about 1/8 of that of the Category 5 cable, it can reduce the networking cost.

Embodiments of the present invention provide a flexible deployment scheme in which the client can place the ID hub in any free place, and it is also very easy to add a card reader to the network, as long as the standard pre-made cable is used to connect the card. The device can complete the redeployment of the network.

The star connection further provides flexibility in networking. One cable of the reader is also subordinate to other users, which saves cable length. For example, the 30 meter cable to the controller can be made up of 7 A card reader is shared, which is equivalent to a cable length of 180 meters.

The front-end reader has a message queue buffer with a sequence of messages. Before the message from the RFID reader is removed from the buffer, each message needs to be acknowledged by the server. In accordance with an embodiment of the present invention, the RFID reader automatically resends the message to the server to confirm if there is a response from the server. Therefore, no messages are lost in the event of any failure of the server, network, or its connection. Through the system as shown in FIG. 2, the embodiment of the present invention can use the radio frequency identification card to collect production line data in real time, which may include the following steps:

Step A1: Configure an employee identity RFID card for each employee;

Step A2: Configure a workpiece RFID card for each workpiece according to different process requirements on the production line;

Step A3: Configure a card reader for each job;

Step A4: Inserting an employee identification radio frequency identification card into the card reader corresponding to the job to which it is assigned;

Step A5: Before processing the assigned workpiece, the worker removes the workpiece RFID card from the assigned workpiece and inserts it into the card reader;

Step A6: The information in the employee identification RFID card and the workpiece RFID card is read by the card reader and sent to the server for classification and statistics;

Step A7: After the worker has finished processing the assigned workpiece, take out the RF identification card of the workpiece and re-bundle it on the workpiece.

In addition, the workpiece that is re-bundled with the workpiece RFID card can be transported to the next job according to the process requirements.

The server determines whether there is a replacement of the workpiece radio frequency identification card based on comparing the workpiece radio frequency identification card information read by the card reader with the currently read information.

Wherein, the server may further match the relationship between the workpiece radio frequency identification card and the workpiece group number according to the situation of completing the workpiece in each job; and then according to the rematching Department, redistribute the process.

The information in the employee identity RFID card and the workpiece RFID card is periodically read by the card reader. The set period is in the order of seconds, for example, 1 second, or 2 seconds, or 1 second and 2 seconds, or sub-second, or millisecond.

In addition, the server may further calculate the work history information of the employee according to the read information of the employee identity RFID card and the statistical production data of the employee, and send the work history information to the corresponding card reader. . The embodiment of the present invention can also record the employee work history in real time by using the RFID card, which may include the following steps:

Step B1: Inserting an employee identification radio frequency identification card into the card reader corresponding to the job to which it is assigned;

Step B2: Before processing the assigned workpiece, the worker removes the workpiece radio frequency identification card from the assigned workpiece, inserts into the card reader, and takes out the workpiece radio frequency identification card after the processing is completed;

Step B3: The information in the employee identification RFID card and the workpiece RFID card is read by the card reader and sent to the server;

Step B4: The server records an operation time of the worker on different workpieces, and generates work history information of the worker according to the worker;

Step B5: The server generates corresponding financial data according to the work history information of the worker.

In addition, the server may further send the generated historical information of the worker to a corresponding card reader display, or send the generated financial data of the worker to a corresponding card reader.

Although most embodiments of the present invention are described by taking an "insertion" radio frequency card as an example, in practice, some reading cards do not necessarily need to be contacted, but only need to be read by a reading card. The frequency range can be read. Therefore, the present invention does not limit the manner in which the radio frequency card is read. According to the system as described in FIG. 2, the embodiment of the present invention can also determine the standard completion time (Standard Allowed Minutes) of the workpiece by using the radio frequency identification card, which may include the following steps: Step C1: inserting an employee identification radio frequency identification card into the card reader corresponding to the assigned job;

Step C2: Before processing the assigned workpiece, the worker removes the workpiece radio frequency identification card from the assigned workpiece, inserts into the card reader, and takes out the workpiece radio frequency identification card after the processing is completed;

Step C3: The information in the employee identification radio frequency identification card and the workpiece radio frequency identification card is read by the card reader and sent to the server;

Step C4: The server calculates the average processing time as the standard completion time of the workpiece according to the statistics of the processing time of different workers on the same type of workpiece.

In addition, the server can compare the actual processing time of one job currently collected with the standard completion time, and generate an alarm if the actual processing time exceeds the standard completion time. Moreover, the comparison result can also be used as a basis for competition for employees in the position. The system of the present invention can also determine the bottleneck of the production line by using the RFID card, which can include the following steps:

Step D1: inserting an employee identification radio frequency identification card into the card reader corresponding to the job to which it is assigned;

Step D2: Before processing the assigned workpiece, the worker removes the workpiece RFID card from the assigned workpiece and inserts it into the card reader;

Step D3: The information in the employee identification radio frequency identification card and the workpiece radio frequency identification card is read by the card reader and sent to the server;

Step D4: The server compares the processing time of the workpiece on a workstation with a preset processing time. If the current processing time exceeds the preset time, an alarm is generated. From the foregoing method of recording the start time and end time of the workpiece processing by inserting the RFID card into the RFID card reader, it can be seen that the present invention can record the workflow, cycle time, idle time, and work content of the semi-finished product.

Referring to Figures 4A-4L, a graphical user interface can be used to interact with the user to facilitate management control of the production process.

As shown in FIG. 4A, in a preferred embodiment on the production line, the processing time for each or each of the cut pieces of each employee/workstation can be recorded, including overall process wait time, local process wait time, and duration. Time, the time and date of the production process from the raw material to the final product. The present invention can report the movement of semi-finished products, the cycle of a production task or process, and the work content along the production line, as well as tools to track work defects.

The present invention is capable of providing a "real time" measurement of the entire process. Further, in the preferred embodiment, it is capable of providing semi-finished product stock, flow rate, cycle time, and idle time at each workstation. For example, in the garment manufacturing process, RFID data can be analyzed and combined on a single computer. "Real time" is shown here in a very short period of time, in intervals or in two seconds, seconds or alternating seconds. This real-time display is absolutely impossible in traditional bar code or paper ticket systems.

As shown in Fig. 4B, the working status including the check-in time and efficiency of each worker/workstation is shown. It provides real-time data, which is unlikely to be possible in traditional bar code or paper ticketing systems.

As shown in Figure 4C, real-time information is displayed along the production line and on the devices and cables that are defective in the system. In accordance with embodiments of the present invention, there may be thousands of card readers and hundreds of controllers and RFID hubs on a scale production line, and the present invention is capable of reporting the deficiencies therein and thereby performing smooth system operation.

As shown in Figure 4D, each product rate and each workstation/worker, product line, and its status are displayed. Such displays can be selectively generated in groups or categories or sequences. this invention Effective improvements can be made by locating the product line and its product rate.

As shown in Figure 4E, the line equipped with the FID tool will be able to provide "real time" measurements and display the finished item output per unit in color/size matrix (in size, color or order). Different sequences can be displayed. Thus, the present invention can utilize a convenient browsing function to monitor the status of products on the production line to aid management.

As shown in Figure 4F, a real-time status of a particular production line/department is provided. It is able to display real-time productivity and efficiency through multiple factors in each department/on different product lines.

Further, if a semi-finished product stays at a workstation/worker, a product stage or department for too long, or if the length of stay exceeds a time program in the software, the computer will have an alarm. The production bottleneck will be detected by measuring the cycle time. Accordingly, it can further give the flow rate and inventory of the semi-finished product (and its entire production history), semi-finished state and worker output/attendance. The user interface will facilitate line balance, and correction of resource and productivity mismatch. It will be able to design/predict the synchronization of semi-finished parallel processing.

Referring to Figure 4G, it shows the case where the alarm is used to identify a product bottleneck, and if there is a bottleneck, an alarm is made by highlighting the department name or product stage. The manager can click into the alarm area to see the cause of the product bottleneck.

Referring to Figure 4H, it is able to display the number of semi-finished products along the production line. The display can be grouped into different semi-finished parts. It allows for the rearrangement of the extra work required to process a particular semi-finished product.

As shown in Figure 41, it displays the number of targets for each department for a user-defined time period. It allows managers to inventory detailed products for a defined duration and thus optimize and improve product target outcomes.

In addition, each employee's salary and other related expenses are subsequently calculated using the work history and other data associated with the employee's identity RFID card. The RFID reader can also be used to check the employee's work history.

Referring to Figure 4J, the worker's work history will be immediately displayed when she attaches her employee ID card to the RFID card reader. In this way, employees on the production line can be used without Collecting tickets for payroll and other related expenses at the end of the weekend or at the end of the month avoids the confusion and inaccuracy caused by the submission of the ticket after a long period of work.

In order to streamline the workflow, the present invention can divide the batch operations into a single operation by redistributing the work content associated with a particular complex task in the RFID card, and redistribute the work content to the appropriate number of RFIDs. Cards and assign these cards to the appropriate number of workstations/workers. This reassignment can be performed by sequential card reading. In a preferred embodiment, it will facilitate the application of a unit product system on a garment line.

Referring to Figure 4K, prior to processing, the present invention facilitates matching chambers to match different bundled/sliced workpieces from component lines. In the traditional clothing industry, a finished garment can be divided into different components, such as sleeves, front panels, back panels, collars, and the like. Different bundles of workpieces come from different printing dyes. Therefore, a finished garment must use the same printed dye in the same bundle. By using the RFID card attached to the bundle/cut workpiece, the matching chamber can check the bundle information, 艮P, and the different components before placing the bundle/cut workpiece in the correct work box for assembly. Assembled together.

There is a unique number/information on the RFID card that identifies the bundle. If two or more bundles carry the same number, they will be placed in the same work box. The actual form of the work box is the same as the graphical form in the system. Once the RFID card is scanned, the user interface will display relevant job customization information, such as product serial numbers, bundle numbers, and component types. The present invention dispenses the correct shelf position so that the employees can place the bundles together before sending the bundles to the assembly line.

When all the same bundled components are collected, 0 will be displayed in the system. For example, 02-03-A (02: shelf; 03: column; A: Row A) There are still two bundles that need to be collected before it is placed in the assembly line. If a bundle of workpieces is free in the work box, the user can click into the work box in the system to check the semi-finished products and related work sequence information. In a preferred embodiment, the user interface will also display and locate the missing bundle.

There is an RFID card cycle in the matching room. Since different bundles of workpieces carry an RPID card, the worker will remove the excess RFID card for circulation. Before a bundle of workpieces is fed into the assembly line, There is only one RFID card attached to the bundle of workpieces.

As shown in Figure 4L, the present invention is capable of incorporating all product customization information on the component line, i.e., the work sequence number, the total number of bundles collected, the time at which the first component arrived, and the time at which the last component arrived. Therefore, the worker can determine the start time of the matching process for a specific work order. It can further detail the working status of each work order. The matching room will monitor and monitor the status of the product on a real-time basis. As shown in FIG. 5, it is a schematic diagram of a process for improving production using radio frequency identification according to an embodiment of the present invention. Within the scope of the plant area 500, work customization is first performed in the office (step 501), then the cutting is performed in the cutting room (step 502), the bar codes are printed on the RPID card and the radio frequency cards are assigned (step 503). Then, the garment components are bundled, and the RFID card is bundled for each bundle of workpieces (step 504), and the package is sent to the internal factory or the external contractor (step 505). In the component assembly process, the employee is first employed by the worker. The identity RFID card is inserted into the card reader (step 506), and the RFID card of the bundle of workpieces is inserted into the card reader before processing the bundle of workpieces (step 507), after the processing of the bundle of workpieces is completed, the worker Unplugging the RFID of the bundle of workpieces from the card reader and tying them back to the bundle of workpieces (step 508). During insertion of the RF card into the card reader, the data in the card is periodically read by the card reader, and The data forms a financial file (step 509), after which a matching process is performed in the Matching Room to establish a relationship between the RFID card and the Bundle Number (step 510), When reassembling, the employee identity RFID card is also inserted into the card reader by the worker (step 511), and the RFID card of the bundle of workpieces is inserted into the card reader before the assembly work (step 512), after the assembly is completed, The RFID of the bundle of workpieces is then removed from the card reader and ligated back to the bundle of workpieces (step 513). During insertion of the RF card into the card reader, the data in the card is periodically read by the card reader. And the data will form a financial document output (step 514), after which the garments are washed (step 515). In the ironing procedure, the SKU (Stock Keeping Unit, inventory) is first assigned according to color or size. Unit) RFID card (step 516), then the worker is operated by the same worker Inserting the employee identity RFID card into the card reader (step 517), and inserting the RFID card of the workpiece into the card reader prior to the ironing process (step 518), and placing the workpiece from the card reader after the process is completed. The RFID card is pulled out and tied back to the workpiece (step 519). During insertion of the RF card into the card reader, the data in the card is periodically read by the card reader, and the data forms a financial file output (step 520) Finally, in the packaging process, the SKU card is used to report the completion (step 521). Referring to Figure 6, it is shown that in the preferred embodiment, the bale operation is changed to be resilient during a single piece operation. In the range of the factory area 600, from step 601 to step 610, it is the same as step 501 to step 510 in FIG. 5, after which, in step 666, the relationship of the bundled workpiece cards needs to be assigned to the UPS (Unit Production System, unit product). In the system) card, then when the single piece of workpiece is operated, the employee's identity RFID card is inserted into the card reader by the worker (step 611), and the UPS card is read through the card reader to read the UPS before assembly work. The card information (step 612), after the assembly is completed, leaves the reading range of the card reader, and binds back to the original bundled workpiece (step 513). The subsequent steps are similar to the subsequent steps in FIG. 5 and will not be described again.

As can be seen from Figure 6, by establishing an RFID card between the RFID card and the bundle number, or for a particular bundle, and a suitable number of RFID cards for splitting the bundle from the bundle. Relationship, the present invention has a working resource matching resilience with respect to different modes of work distribution/flow. In a preferred embodiment, the present invention enhances front end data by eliminating data duplication. The present invention is capable of verifying data via the Internet/Intranet, and can also confirm receipt of data by a computer. Standard Allowed Minutes is a product standard, that is, the time required for a normal worker to use a particular method to achieve a particular operation in order to control product time and labor costs. For example, factories can use standard completion times to plan and schedule products, analytical capabilities, and as a measure of product sector performance. Workpiece rate system The factory uses standard completion times or similar methods as the basis for employee competition, while factories using medium-sized products can use a total standard completion time to establish product goals and competition for the team. Managers and workers often have different opinions about where standard completion time should be set. If the rate is too tight, the operator will not be able to get a fair income. On the other hand, if the rate is too slack, the human cost will be too expensive and the manufacturer will be uncompetitive in the market.

The fair rate is important to every operator. However, due to the lack of feedback in actual operation time, it is difficult to satisfy everyone at this point. In a preferred embodiment of the invention, the actual operating time of each employee for each operation on each bundle is recorded, so that the comparison between the standard completion time and the actual operation time is effective and reliable. And, therefore, the accuracy of the standard completion time can be further improved. In comparing the actual performance with the standard completion time, the operating points that cause the production bottleneck can be identified, so the productivity can be well evaluated and the corresponding adjustments can be made. Although the preferred embodiment of the present invention is disclosed above, it should be understood as an explanation of the present invention, and is not intended to be limiting. For example, the card reader described in the embodiment of the present invention is an example of a plug-in card reader. As shown in FIG. 7A, slots 701 and 702 are used to accommodate insertion of a radio frequency card. However, other forms of card readers are also suitable for the present invention, such as lashing, as shown in FIG. 7B, the RF card can be read from the slot 703 or 704, and data can be read therefrom. The illustrated clamping type, and the like can be applied to the present invention, and therefore, the card reader described in the specification and claims, and the operation of inserting a radio frequency card, etc., should be interpreted to include all forms of reading described above. Card and its operation.

Claims

1. A radio frequency identification system for collecting production line data in real time, characterized in that it comprises:

The employee identification radio frequency identification card, the card information represents the information associated with the employee's identity; the workpiece radio frequency identification card, attached to the semi-finished product, the card information represents the information associated with the corresponding workpiece;

a controller for controlling the card reader to read the radio frequency card information, and transmitting the obtained information to the controller;

A server for collecting production line book information uploaded by the controller and classifying and counting the information.

2. The system of claim 1 further comprising:

A hub for connecting a plurality of card readers to the controller, the information read by the card reader being transmitted to the controller via the hub.

3. The system according to claim 1, wherein the card reader further comprises a display module for collecting information according to the current employee identity of the radio frequency identification card and the statistics collected by the server. The employee's production data shows the employee's work history information.

4. The system according to claim 1, wherein the controller is further configured to control the card reader to periodically read the radio frequency card information, and transmit the acquired information to the controller.

5. The system of claim 4, wherein the period is seconds, or minutes, or milliseconds.

6. The system of claim 1 wherein the card reader includes one or two or more slots for receiving the employee identity RFID card and the workpiece RFID card.

7. The system of claim 1 wherein said each employee identity radio frequency The identification card, the workpiece RFID card, and the card reader each have a unique serial number.

8. The system of claim 1 wherein the various devices of the system are connected by a multi-core pre-wired cable.

9. The system according to claim 8, wherein the multi-core prefabricated cable comprises an uplink signal line, a downlink signal line, and a ground line, and provides for each of the uplink, downlink, and ground lines. At least one spare line.

10. A method for real-time collecting production line data by using a radio frequency identification card, characterized in that:

Configuring an employee identity RFID card for each employee;

Configuring a workpiece RFID card for each workpiece according to different process requirements on the production line;

Configure a card reader for each job;

11. The method of claim 10, further comprising: re-attaching the RFID card of the workpiece to the workpiece after the worker finishes processing the assigned workpiece.

12. The method of claim 11 further comprising: said workpiece reattached to the workpiece RFID card being shipped to the next job.

13. The method according to claim 11, further comprising: determining, by the server, whether there is workpiece radio frequency identification based on comparing the workpiece radio frequency identification card information read by the card reader last time with the currently read information. Card replacement by recording a radio frequency The duration of the identification card from the reading range of the reader to the reading range of the reader, determining the processing time of the workpiece at the current position, and recording the unidentified identification of the RFID card by recording a card reader Duration, determine the idle time of the corresponding device/worker.

14. The method according to claim 13, further comprising: the server re-matching the relationship between the workpiece radio frequency identification card and the workpiece group number according to the situation of completing the workpiece in each job;

The process is redistributed according to the rematching relationship.

15. The method of claim 10, wherein the information in the employee identity radio frequency identification card and the workpiece radio frequency identification card is periodically read by the card reader.

16. The method of claim 15, wherein the period is in the order of seconds, or minutes, or milliseconds.

The method according to claim 10, further comprising: calculating, by the server, the information in the employee identification radio frequency identification card and the statistical production data of the employee The employee's work history information is sent to the corresponding card reader display.

18. A method for recording an employee's work history in real time using a radio frequency identification card, comprising: - reading, by a worker, an employee identity radio frequency identification card using a card reader corresponding to the job to which it is assigned;

The server records the operation time of the worker for different workpieces, and generates work history information of the worker accordingly.

19. The method of claim 18, further comprising: the server generating corresponding financial data based on the work history information of the worker.

20. The method of claim 18, further comprising: the server transmitting the generated history information of the worker to a corresponding card reader display

21. The method of claim 19, further comprising: said server transmitting said generated financial data of said worker to a corresponding card reader display.

22. The method of claim 18, wherein the information in the employee identity radio frequency identification card and the workpiece radio frequency identification card is periodically read by the card reader.

23. The method of claim 22, wherein the period is in the order of seconds, or minutes, or milliseconds.

The method according to claim 18, further comprising: determining, by the server, whether the workpiece is radio frequency identification based on comparing the workpiece radio frequency identification card information read by the card reader with the currently read information. Card replacement.

25. A method of determining a standard completion time of a workpiece using a radio frequency identification card, the method comprising:

The server calculates the average processing time as a standard completion time for the workpiece according to the statistics of the processing time of different workers on the same type of workpiece.

26. The method of claim 25, wherein the information in the employee identity radio frequency identification card and the workpiece radio frequency identification card is periodically read by the card reader.

27. The method of claim 26, wherein the period is, or sub-second, or millisecond.

The method according to claim 25, further comprising: the server comparing the actual processing time of the currently collected one job with the standard completion time, and using the comparison result as the employee of the post The basis of competition.

29. A method for determining a bottleneck of a production line using a radio frequency identification card, the method comprising: reading, by a worker, an employee identification radio frequency identification card by using a card reader corresponding to the assigned job;

The server compares the processing time of the workpiece on a workstation with a preset processing time. If the current processing time exceeds the preset time, an alarm is generated.