CN102236834A - System and method for applying RFID (Radio Frequency Identification) to thin-film solar cell material management - Google Patents
System and method for applying RFID (Radio Frequency Identification) to thin-film solar cell material management Download PDFInfo
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- CN102236834A CN102236834A CN2010101746514A CN201010174651A CN102236834A CN 102236834 A CN102236834 A CN 102236834A CN 2010101746514 A CN2010101746514 A CN 2010101746514A CN 201010174651 A CN201010174651 A CN 201010174651A CN 102236834 A CN102236834 A CN 102236834A
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Abstract
The invention provides a system and method for applying RFID (Radio Frequency Identification) to thin-film solar cell material management. The system comprises a material database, multiple RFID labels, multiple RFID reading devices, an RFID control system, an RFID label database and a material managing system server, wherein the material database is used for storing material number information of a thin-film solar cell substrate; the multiple RFID labels are attached on multiple devices for transporting the thin-film solar cell substrate; the multiple RFID reading devices are used for reading RFID label information of the devices for transporting the thin-film solar cell substrate; the RFID control system is used for capturing RFID label information which is read by the RFID reading devices; the RFID label database is communicated with the RFID control system and is used for storing the RFID label information captured by the RFID control system; and the material managing system server is used for requiring information stored by the RFID label database from the RFID control system, requiring the material number information from the material database, combining the RFID label information with the material number information and generating material managing information.
Description
Technical field
The invention relates to be used for the material management system that thin-film solar cells is made, particularly be applied to the material management system that thin-film solar cells is made about RFID (Radio Frequency Identification System).
Background technology
Handling of goods and materials comprises calculating, tracking, the statistics for material.The optics bar code scans and the RFID label is two kinds of known handling of goods and materials modes cheaply.Bar code scans needs one to be scanned the accessible straight line optical path that covers between the bar code between reader and quilt, only can transmit less information; And RFID utilizes antenna to transmit radiowave, needs a plurality of cooperating equipments, yet can obtain the volume data automatically for the RFID label information that reads.The optics bar code scans and the RFID label can the elasticity combination apply to factory management system.
Synoptic diagram with reference to the existing passive type RFID label of Fig. 1.Passive type RFID label has the antenna 103 of a spiral form or coiled type, in order to stop radio-frequency (RF) energy by the reader emission, comprise the startup power supply and the instruction of RFID label in the radio-frequency (RF) energy of these reader antenna emissions, with the IC 101 that starts this RFID label, and utilize this energy to transmit response code (respondcode), adjusted the signal that reflected back is passed to reader antenna by this by adjusting the impedance of antenna for radio field.RFID label 307 comprises an electric capacity 102 in addition, is tuned to a special value in order to the frequency of operation with label, has obtained maximum operating range and has guaranteed to conform with the RFID radio frequency band of ITU standard.
Other is with reference to the synoptic diagram of the existing RFID reader of Fig. 2.The RFID reader comprises a data collector 200, one wireless communication modules 203, one power supplys 205, and preferably, this reader can comprise a processor 204, charging system 206, a storage device (figure does not show), a memory storage (figure does not show) etc.
Import suitable factory's handling of goods and materials at the thin-film solar cells batch production technique, traceable grasp one film solar battery module substrate is in the position in front and back segment process stage, and the loss that control is slipped up, the raw material accumulation is idle or inlet feed is converged difference and cause also can reduce cost.
Current thin film solar cell commodity component structure is divided into " light-transmission type " and reaches " light tight type " two kinds.Light-transmission type module double-sided electrode is nesa coating, and light tight pattern piece is to use metal electrode or wire mark reflection glue material to cooperate transparency conductive electrode.The typical case of electrode makes the chemical vapor deposition of employing ion growth form, and (Plasma-Enhanced CVD, PECVD) at the substrate deposition P-I-N of the thin-film solar cells utmost point, it adopts sputter modes more.Because the silicon film solar batteries module is with portrayal full wafer substrate, form between battery and battery and contact, if substrate has unevenness, will make and electrically mate the generation problem between battery and battery.
(Transparent Conductive Oxide generally is in atmospheric pressure chemical vapour deposition (APCVD) mode, with the tin ash (SnO of doped with fluorine TCO) to transparent conductive oxide
2: F) be deposited on glass substrate, or be etched into surperficial matte (texture) with hydrochloric acid again after the zinc paste (ZnO:Al) of adulterated al is sputtered in substrate, to strengthen the effect (light trapping) that light is sealed up for safekeeping.Obtaining of glass substrate, the most common person directly buys ready-made tin ash glass to glass factory.Also have with low-pressure chemical vapor deposition (LPCVD) technology and technology and produce the zinc oxide transparent conducting film of the doped with boron of surperficial matteization, the dealer only need buy simple glass can make glass substrate, because silica glass is dependent on import more, cost is high relatively, be unfavorable for reducing cost, the cost variance of two kinds of different substrates can reach two times.
In view of this, the present invention proposes the system of a kind of applying RFID in the solar cell handling of goods and materials.With robotization and the cost degradation that reaches the silicon film solar batteries handling of goods and materials.
Summary of the invention
A conception of the present invention is to propose a kind of utilization RFID in the thin-film solar cells material management system, and it comprises: a material data storehouse, a plurality of RFID label, a plurality of RFID reading device, a RFID control system, a RFID tag database and a material management system server.
Above-mentioned material data storehouse is in order to store the item number information of thin-film solar cell substrate, and wherein the item number information of substrate can adopt optics bar coding mode to make and read.
Above-mentioned a plurality of RFID label is attached at a plurality of thin-film solar cell substrate Handling devices.
Above-mentioned a plurality of RFID reading device is in order to read the RFID label information of thin-film solar cell substrate Handling device.One RFID control system is sent to the RFID tag database in order to the information that the RFID reading device is read, and stores it by the RFID tag database.
Above-mentioned material management system server, to the stored RFID tag database of RFID tag database request, other is to the item number information of its stored thin-film solar cell substrate of material data storehouse request, in conjunction with the two to produce handling of goods and materials information, in order to follow the trail of, to manage the operation stage of this batch substrate material.
Above-mentioned RFID control system, material data storehouse, material management system server see through Internet and link up connection.
In addition, above-mentioned RFID control system more comprises: a statistics process management server, it is linked up with above-mentioned material management system server and links, and combines with handling of goods and materials information in order to information that product is made a variation, with the make a variation material batch of generation of statistical study.
Another conception of the present invention is to propose a kind of management method of thin-film solar cells material, and it comprises the following step:
For a plurality of thin-film solar cell substrate are set up item number information, and then, for a plurality of thin-film solar cell substrate Handling devices are set up the RFID label information; Read the item number information of a plurality of thin-film solar cell substrate; Read a plurality of thin-film solar cell substrate Handling device RFID label informations; In conjunction with above-mentioned item number information and above-mentioned RFID label information, discern substrate and battery unit that each Handling device loads.
In addition, when the quality variation generation took place in the technology, the battery unit that can count the variation generation effectively belonged to what batch substrate, what batch item number, which kind of operation stage.So method proposed by the invention also comprises: with the information substrate of being discerned, combined process variation data, the substrate and the battery unit information of identification variation finished product.
Description of drawings
Fig. 1 is the synoptic diagram of existing passive type RFID label;
Fig. 2 is the synoptic diagram of existing RFID reader;
Fig. 3 is the synoptic diagram of the Handling device that transports cell substrates of a foundation specific embodiment of the present invention;
Fig. 4 is the synoptic diagram according to the thin-film solar cells material management system of the utilization RFID of a specific embodiment of the present invention;
Fig. 5 is the makers' configuration schematic diagram of silicon film solar according to the material management system of specific embodiment configuration utilization RFID of the present invention;
Fig. 6 is in the method flow diagram of the handling of goods and materials of thin-film solar cells according to utilization RFID of the present invention;
Fig. 7 is in the other method process flow diagram of the handling of goods and materials of thin-film solar cells according to utilization RFID of the present invention.
Drawing reference numeral:
300 Handling devices
301 frameworks
302 compartments
303 substrates
304 tracks
305 RFID readers
306 boards
307 RFID labels
400 RFID material management systems
401 material data storehouses
402 RFID control system
403 RFID tag databases
404 RFID material management system servers
405 statistics process duct control server
501 cleaning areas
502 TCO sedimentary provinces
503 cut districts
504 silicon deposited film districts
505 silicon thin film design producing districts
506 back electrodes are made the district
507 back electrode design producing districts
508 film forming engineering districts
509 service check test sections
510 assembling districts
511 module assembling test districts
512 storage areas
513 optically read districts
514 optical pickups
515-1～515-N RFID identification district
Embodiment
Above-mentioned purpose of the present invention or feature will be described in detail according to back accompanying drawing formula.What need to understand is, back accompanying drawing formula and the cited case, just as an illustration but not limiting or limit the present invention.
Though the present invention will consult and contain the appended graphic of the specific embodiment of the invention and fully describe, before describing, this should be appreciated that those skilled in the art can revise invention described herein, obtain effect of the present invention simultaneously.Therefore, needing to understand following description is an announcement widely to those skilled in the art, and its content does not lie in restriction the present invention.
Fig. 3 is the synoptic diagram of the Handling device that transports cell substrates of a foundation specific embodiment of the present invention.Element 300 is the Handling device of thin-film solar cell substrate, wherein is provided with framework 301, is provided with compartment 302 in the framework 301, and glass substrate 303 is positioned over wherein.On each sheet glass substrate, be provided with an optics bar code (figure does not show), before the compartment 302 of inserting Handling device 300, the mode that optics bar code on the substrate has read or manually read with machine, the material information of this substrate is embedded in the material data storehouse, and writes the RFID label 307 that is attached on the Handling device 300.
Glass substrate is inserted Handling device and is advanced along track 304 through cleaning, attaches a RFID label 307 on the Handling device 300.
Preferably, this RFID label 307 is a passive type RFID label.(Plasma-Enhanced Chemical Vapor Deposition PECVD) is critical process, and it uses the deposition of having carried out the SiNx anti-reflecting layer because solar battery process is with the chemical vapor deposition of ion growth form.Form film, need in a vacuum with RF power decomposition gas molecule, the frequency of RF is relevant with its application, and typical frequency is at 40kHz, 400kHz, 13.56MHz, 2.45GHz (microwave power).This equifrequent and RFID rf frequency have the overlapping possibility, according to the RFID opening frequency band list of ITU (International Telecommunication Union) for different regions opening all over the world, CONTINENTAL AREA OF CHINA low frequency frequency range is that 125-134kHz, high-frequency band are 13.56MHz, ultrahigh frequency (fixing tentatively) is 917-922MHz, and microwave frequency band is 2446-2454MHz.When having two tag response information to give reader simultaneously, can produce what is called " collision " problem (collision), cause reading or writing failure.Must select suitable R FID frequency range, and take other anticollision mechanism in addition, for example synchronous and asynchronous anticollision mechanism.
Therefore, for the RF ion gun of anti-system with PECVD interferes with each other, select the passive type RFID of low frequency 125-134kHz, though it reads distance short (less than 0.5m), but exist environment reaction good for metal and liquid, preferable being suitable for arranged for thin-film solar cells technology.
In addition, PECVD vacuum chamber interior reaction temperature reaches 300 ℃～400 ℃, as the RFID label directly is attached at glass substrate, the RFID label must withstand high temperatures and is caused damage, cause the vacuum chamber internal contamination simultaneously, so the RFID label is attached at Handling device, but about sticking type RFID label, can be with reference to Japanese patent application publication No. JP2009010146 patent of invention " Solar Cell Module andManufacture Method for the Same ".
Continuation is with reference to Fig. 3, and Handling device 300 is earlier by RFID readers 305, is attached at the RFID label 307 of Handling device 300 with startup, reads the substrate material information that is written into RFID label 307, and is sent to RFID controller (Fig. 3 does not show).Afterwards, Handling device 300 enters the leading portion film-forming process district at board 306 places, finishes follow-up reforwarding in film-forming process and send substrate and solar battery cell to enter back segment packaging technology district.
Fig. 4 is the synoptic diagram according to the thin-film solar cells material management system of the utilization RFID of a specific embodiment of the present invention.A plurality of RFID labels are attached on the Handling device 300 of thin-film solar cell substrate, and each label load has the material information of this substrate, for the purpose of simplifying the description, only show three RFID labels in graphic.A plurality of RFID data reader 300-1,300-2,300-N, be disposed at the film forming section and assembling section of thin-film solar cells factory respectively, the wireless radiofrequency electric field of the antenna emission of data reader starts a plurality of RFID label 307-1,307-2,307-N, therefore a plurality of RFID labels can return position, state and the set information of these substrates to reader.
Control module 402 and RFID reader are linked up and are connected, and the RFID reader provides position, state and the set information of received RFID to control module 402, control module 402 further with these information storage in RFID database 403.
Control module 402 is linked up with a material management system server 404 and is connected, this material management system server 404 is stored in the RFID label information of RFID tag database 403 to control module 402 requests, ask the item number information of its stored thin-film solar cell substrate in addition to material data storehouse 401, in conjunction with the two to produce handling of goods and materials information, in order to follow the trail of, to manage the operation stage of this batch substrate material.
Preferably, this material management system server 404 can be linked up with statistics process duct control server 405 and is connected, statistics process duct control server 405, in order to store the data information of each stage QC test in the thin-film solar cells technology, for example line upper glass automated optical detects data, qualitative substantially Voc measures, film thickness measures, TCO mist degree and resistance measurement etc.Statistics process duct control server 405 can be based on to the obtained material information of handling of goods and materials server, merge above-mentioned each metric data, the thin-film solar cells unit that statistical study has variation to exist belongs to what batch substrate, what batch item number, and then reaches the dual-use function of quality control control and Material control.
Referring now to Fig. 5, be the silicon film solar manufacturing plant configuration schematic diagram of configuration according to the RFID material management system of a specific embodiment of the present invention.After glass-based version 303 places 501 cleaning areas to carry out surface clean earlier, attach the optics bar code, read the item number of this base version by 513 optically read districts, the item number information storage (is schemed to show) in material data storehouse 401, then substrate is written into the Handling device 300 that is pasted with a RFID label 307, advance along track 304, enter the first identification district, 5 15-1 at RFID reader 305-1 place, behind the RFID label information by this Handling device of reader identification, Handling device 300 continues substrate 303 is written into film forming engineering district 508, carry out the silicon deposited film engineering, in regular turn by transparent conductive oxide TCO sedimentary province 502, cut district 503, silicon deposited film district 504, silicon thin film design producing district 505, back electrode is made district 506 and back electrode design producing district 507, so far, the thin-film solar cells unit completes.Wherein, because TCO sedimentary province 502 and silicon deposited film district 504 all need by chemical vapor deposition (CVD) or ion growth form chemical vapor deposition (PECVD) manufacturing process, must be in a vacuum with RF power decomposition gas molecule to form film, for avoiding ion gun RF frequency and RFID reader and RFID label to bump and interference problem, radio factory's scope that all RFID read the district on the production line all is designed to avoid or away from film forming engineering district 508.
After the thin-film solar cells unit completes, Handling device 300 continues to transport the substrate at battery unit place, by the second identification district, with identification RFID label information, enter module assembling test district 511 then, after service check test section 509 comprises every Performance Detection that I-V measures, enter assembling district 510, carry out combination, the packing of thin-film solar cells unit, become thin-film solar cells finished product 507 and be transported to storage area 512 at last, wait is transported.
Preferably, in storage area 512, purpose for warehousing management, the rfid system of ultrahigh frequency 917-922MHz can be set, though these ultrahigh frequency RFID systems react relatively poor for the environment that metal and liquid are arranged, so read distance, generally being used for case or pallet is the tracking and managing of unit, be applicable to completed large area film solar cell finished product 507, for reaching preferable logistics management purpose, should adopt it, consider that only single storage area 512 exists the communication speed of following under a large amount of reader 305 environment to reduce problem, must take synchronization, LBT (Listen-Before-Talk) reduces interference problem with frequency agility methods such as (frequency hopping).
Can there be a plurality of glass-based versions of a plurality of Handling device carryings to carry out the making of a plurality of thin-film solar cells unit on the track 304 simultaneously, so in order to simplify, only show a glass substrate 303, several Handling devices 300-1～300-N and several RFID labels 307-1～307-N in graphic.
Read the district again and include but not limited in graphic that shown first to fourth reads the district, those skilled in the art finish from problems such as can considering on-the-spot interference hits and change and do not deviate from spiritual category of the present invention.
Fig. 6 be according to utilization RFID of the present invention in the method flow diagram of the handling of goods and materials of thin-film solar cells, it comprises the following step: step 601, for a plurality of thin-film solar cell substrate are set up item number information; Step 602 is for a plurality of thin-film solar cell substrate Handling devices are set up the RFID label information; Step 603 reads the item number information of a plurality of thin-film solar cell substrate; Step 604 reads a plurality of thin-film solar cell substrate Handling device RFID label informations; Step 605 is in conjunction with above-mentioned item number information and above-mentioned RFID label information; And step 606, identification substrate that Handling device loaded and on battery unit information.
Other please refer to Fig. 7, proposes utilization RFID in the other method flow process of the handling of goods and materials of thin-film solar cells, and it comprises the following step: step 701, for a plurality of thin-film solar cell substrate are set up item number information; Step 702 is for a plurality of thin-film solar cell substrate Handling devices are set up the RFID label information; Step 703 reads the item number information of a plurality of thin-film solar cell substrate; Step 704 reads a plurality of thin-film solar cell substrate Handling device RFID label informations; Step 705 is in conjunction with above-mentioned item number information and above-mentioned RFID label information; Step 706, identification substrate that Handling device loaded and on battery unit information; Step 707 combines the information substrate of being discerned with technology variation data; And step 708, the substrate and the battery unit information of identification variation finished product.
Step 707 and step 708, during in order to generation quality variation in technology, the battery unit that can count the variation generation effectively belongs to what batch substrate, what batch item number, which kind of operation stage.So method proposed by the invention more comprises: with the information substrate of being discerned, combined process variation data, the information substrate of identification variation finished product.
After describing specific embodiments of the invention in detail, those skilled in the art can be well understood to, and can carry out various variations and change not breaking away under claim and the spirit, and the present invention also are not subject to the embodiment of illustrated embodiment in the instructions.
Claims (5)
1. system that uses RFID in the thin-film solar cells handling of goods and materials is characterized in that described system comprises:
One material data storehouse is in order to store the item number information of thin-film solar cell substrate;
A plurality of RFID labels are attached at a plurality of thin-film solar cell substrate Handling devices;
A plurality of RFID reading devices are in order to read the RFID label information of thin-film solar cell substrate Handling device;
One RFID control system is in order to capture the RFID label information that the RFID reading device is read;
One RFID tag database is connected with the communication of RFID control system, in order to store the RFID label information of described RFID control system acquisition; And
One material management system server, the information that it stores to the described RFID tag database of described RFID control system request, and,, produce handling of goods and materials information in conjunction with described RFID label information and described item number information to described material data storehouse request item number information;
Described RFID control system, described material data storehouse, described material management system server see through Internet and link up connection.
2. the system as claimed in claim 1 is characterized in that, described system also comprises:
One statistics process management server is linked up with described material management system server and to be linked, and combines with handling of goods and materials information in order to information that product is made a variation, with the material of statistical study variation generation batch.
3. the system as claimed in claim 1, wherein the RFID label is the passive type RFID label of low frequency 125-134kHz.
4. a method of using RFID in the thin-film solar cells handling of goods and materials is characterized in that described method comprises the following steps:
For a plurality of thin-film solar cell substrate are set up item number information;
For a plurality of thin-film solar cell substrate Handling devices are set up the RFID label information;
Read the item number information of a plurality of thin-film solar cell substrate;
Read a plurality of thin-film solar cell substrate Handling device RFID label informations;
In conjunction with described item number information and RFID label information; And
Discern substrate and battery unit that each Handling device loads.
5. method as claimed in claim 4 is characterized in that, described method also comprises:
In conjunction with the substrate that will be discerned and battery unit information and technology variation data; And
The substrate and the battery unit information of identification variation finished product.
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| Application Number | Priority Date | Filing Date | Title |
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| CN2010101746514A CN102236834A (en) | 2010-05-06 | 2010-05-06 | System and method for applying RFID (Radio Frequency Identification) to thin-film solar cell material management |
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| Application Number | Priority Date | Filing Date | Title |
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| CN2010101746514A CN102236834A (en) | 2010-05-06 | 2010-05-06 | System and method for applying RFID (Radio Frequency Identification) to thin-film solar cell material management |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102654767A (en) * | 2012-05-09 | 2012-09-05 | 中国电子科技集团公司第四十八研究所 | Control system and method for production of solar battery pieces |
| CN103107116A (en) * | 2011-11-10 | 2013-05-15 | 英稳达科技股份有限公司 | Solar wafer carrier |
| CN107688837A (en) * | 2016-08-04 | 2018-02-13 | 财团法人工业技术研究院 | Location-based status awareness system and method thereof |
| US10643039B2 (en) | 2016-08-04 | 2020-05-05 | Industrial Technology Research Institute | Location based situation awareness system and method thereof |
-
2010
- 2010-05-06 CN CN2010101746514A patent/CN102236834A/en active Pending
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103107116A (en) * | 2011-11-10 | 2013-05-15 | 英稳达科技股份有限公司 | Solar wafer carrier |
| CN103107116B (en) * | 2011-11-10 | 2015-08-26 | 英稳达科技股份有限公司 | Solar wafer carrier |
| CN102654767A (en) * | 2012-05-09 | 2012-09-05 | 中国电子科技集团公司第四十八研究所 | Control system and method for production of solar battery pieces |
| CN107688837A (en) * | 2016-08-04 | 2018-02-13 | 财团法人工业技术研究院 | Location-based status awareness system and method thereof |
| US10643039B2 (en) | 2016-08-04 | 2020-05-05 | Industrial Technology Research Institute | Location based situation awareness system and method thereof |
| CN107688837B (en) * | 2016-08-04 | 2020-10-09 | 财团法人工业技术研究院 | Location-based status awareness system and method thereof |
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Application publication date: 20111109 |