CN101887550A - Large warehoused cargo triggered fault-tolerant addressing method based on wireless radio-frequency identification - Google Patents
Large warehoused cargo triggered fault-tolerant addressing method based on wireless radio-frequency identification Download PDFInfo
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Abstract
The invention relates to a large warehoused cargo triggered fault-tolerant addressing method based on wireless radio-frequency identification, which comprises the following steps of: establishing a warehousing system network, wherein the system network comprises a control server, a repeater, a radio-frequency collector node and an RFID (Radio Frequency Identification) triggering and collecting antenna; the radio-frequency collector node is connected with the repeater, and the repeater is connected with the control server; the radio-frequency collector node is connected with the RFID triggering and collecting antenna, the RFID triggering and collecting antenna is installed on the rack position of a cargo pallet racking, the system network also comprises an RFID label, the RFID label is installed on a tray, and RFID label data is read by the RFID triggering and collecting antenna through a wireless signal. Aiming at the characteristics of difficult addressing and the like of internal warehousing system articles of a large manufacturing industry, an RFID triggered fault-tolerant addressing mode is adopted in the invention to realize the real time implementation, the transparency, the visualization, the networking and the paperlessness of warehousing dynamic management, thereby thoroughly solving the problems of difficult addressing of large warehoused articles and easy dislocation and fracture of information; and the method has clear levels and simple operation.
Description
Technical field
The invention belongs to radio RF recognition technology, particularly a kind of large warehoused cargo triggered fault-tolerant addressing method based on radio frequency identification.
Background technology
Traditional storehouse management generally depends on goods non-automaticization, write down, follow the trail of turnover based on the system of paper document, complete management by inside, artificial enforcement warehouse, therefore the efficient of storehouse management is extremely low, and the warehouse scale that can manage is also very little.The supply chain management that relies on ERP system is based on the LAN (Local Area Network) or the internet of enterprise, Care for Cargo or material to storage carry out the computer information management, article turnover storehouse relies on artificial computer input, and use the transmission of shop order on a small quantity, the stacking of goods and location are set by prior preset program, the operator must strictly carry out, the turnover balance of goods is guaranteed substantially, but addressing and location just may be difficult to realize accurate management because of people's sense of responsibility or on-the-spot objective circumstances, usually to once make an inventory by a period of time and make in order, but make an inventory is post factum after all, can not realize the real time implementation of warehousing system information.The intelligent storage management system usually adopts barcode technology, planar bar code technology or even RFID technology, warehouse arrival check, warehouse-in, outbound, the data of alloting, moving each cargo handling operations such as storehouse displacement, stock-taking are carried out the data acquisition of robotization, guarantee the speed and the accuracy of each link data input of storehouse management, guarantee that enterprise grasps stock's True Data timely and accurately, rationally keep and control business inventory.By the coding of science, also can be easily to article batch, shelf-life etc. manages.Utilize the bucket management function of system, more can in time grasp the current position of all stock in storages, help improving the work efficiency of storehouse management.Each large enterprises adopts the warehousing system in the automatic data collection technical management supply chain at present, its acquisition method still is passive collection or semi-automatic collection, data collection station is assemblied on pallet or the fork truck usually, or operator's hand-portable terminal, can't accomplish the uniqueness of intensive shelf address, objectively still can't realize the dynamic addressing of goods, still rely on people's sense of responsibility to a certain extent.
At present, though the inside warehousing system of the large-scale manufacturing enterprise of China is huge, automaticity is also very low, and the warehousing system investment of construction implementization, robotization is also very surprising, also will keep present present situation in future for a long time.Therefore designing and a kind ofly can realize automatic data collection, can realize the warehousing management solution of goods automatic fault tolerant location again, is a kind of good method of not only having saved money but also can reach the intelligent management purpose.
Summary of the invention
The objective of the invention is to found a kind of large warehoused cargo triggered fault-tolerant addressing method based on radio frequency identification, various to solve large-scale manufacturing inner warehousing system kind model, three-dimensional polynary intensive, dynamic change is rapid, the spatial operation contours of the face is big, the shipment inefficiency, problems such as article addressing difficulty, technical scheme of the present invention is achieved in that a kind of large warehoused cargo triggered fault-tolerant addressing method based on radio frequency identification, comprise: set up a warehousing system network, grid comprises Control Server, repeater, radio-frequency (RF) acquisition device node and RFID triggering collection antenna; Radio-frequency (RF) acquisition device node is connected with repeater, and repeater is connected with Control Server; Radio-frequency (RF) acquisition device node connects RFID triggering collection antenna, RFID triggering collection antenna is installed on the chord position of cargo pallet shelf, grid also comprises the RFID label, and the RFID label is installed on the pallet, and RFID triggering collection antenna reads the RFID label data by wireless signal; Described radio-frequency (RF) acquisition device node comprises communication chip, microprocessor chip and radio frequency control chip; Communication chip connects repeater, and the radio frequency control chip is connected with microprocessor chip, and the radio frequency control chip connects RFID triggering collection antenna; Microprocessor chip carries out timesharing gating acquired signal to RFID triggering collection antenna; Described Control Server comprises: based on information database, physics warehousing system descriptive data base and the goods attribute description database of RFID Information Monitoring; The logical address of RFID triggering collection device is arranged in the described physics warehousing system descriptive data base, and goods attribute description database has the shelf physical address, and described logical address is corresponding with physical address data; Described triggering fault-tolerant addressing method step comprises:
A. put into goods warehouse entry information typing goods attribute description database and with goods and be equipped with on the RFID label of goods pallet;
B. the pallet information of goods information correspondence is recorded in the database;
C. in database, find out idle shelf chord position and distribute to the warehouse entry cargo pallet and deposit;
D. in the deposit position record typing physics warehousing system descriptive data base that distributes, obtain the logical address of physics storage address and pairing RFID triggering collection device;
E. the pallet that goods is housed is moved on the shelf chord position of distributing and deposit, the RFID triggering collection antenna of the RFID tag triggers of pallet on the shelf chord position, the RFID label information of pallet reads by RFID triggering collection device node, and is sent in the system through repeater;
F. whether system's storage address that the information of depositing of the pallet received is checked with system assignment coincide;
G. as coincide, then confirm information in the database of typing;
H. as misfit, then the cargo storage information updating of reality in database.
Described goods warehouse entry information comprises Description of Goods, goods coding, goods model, goods specification and quantity of goods.
Described radio frequency control chip connects at least 1 RFID triggering collection antenna by shielding line.
Described radio frequency control chip connects 6 RFID triggering collection antennas by shielding line.
Described RFID triggering collection antenna reads the electronic labeling information that is installed on the pallet with the radiofrequency signal of 125KHz frequency.
Described radio-frequency (RF) acquisition device node is connected with repeater by the RS-485 industrial bus.
Described repeater is connected with server by network.
The present invention to the contribution of prior art is:
1. various at large-scale manufacturing inner warehousing system kind model, three-dimensional polynary intensive, characteristics such as dynamic change rapid, the spatial operation contours of the face big, shipment inefficiency, article addressing difficulty, adopt RFID to trigger the fault-tolerant addressing mode, realize real time implementation, the transparence, visual, networked, with no paper of storage dynamic management, misplacing appears in large warehoused article addressing difficulty, information easily and the problem of tomography thereby thoroughly solve;
2. the inventive method system for use in carrying is simple in structure, and method is methodically arranged, and is simple to operate.
Below in conjunction with embodiment and accompanying drawing the present invention is done a detailed description.
Description of drawings
Fig. 1 gathers the I and II network architecture diagram for system data of the present invention;
Fig. 2 gathers the three-level network Organization Chart for system data of the present invention.
Embodiment
A kind of large warehoused cargo triggered fault-tolerant addressing method embodiment based on radio frequency identification, referring to Fig. 1, Fig. 2, described triggering fault-tolerant addressing method comprises: set up a warehousing system network, grid comprises Control Server 1, repeater 2 and radio-frequency (RF) acquisition device node 3; Radio-frequency (RF) acquisition device node is connected with repeater by interface, and repeater is connected with Control Server by network; Radio-frequency (RF) acquisition device node connects the RFID(radio frequency) triggering collection antenna 4, RFID triggering collection antenna is installed on the chord position 5-1 of cargo pallet shelf 5, grid also comprises the RFID label, the RFID label is placed on the pallet, and RFID triggering collection antenna reads the RFID label data by wireless signal.
Described radio-frequency (RF) acquisition device node comprises communication chip, microprocessor chip and radio frequency control chip; Communication chip connects repeater to be received the Control Server order and sends order to microprocessor chip, and the radio frequency control chip is connected with microprocessor chip, and the radio frequency control chip connects a plurality of RFID triggering collection antennas; Microprocessor chip carries out timesharing gating acquired signal to RFID triggering collection antenna.
Described Control Server comprises: based on information database, physics warehousing system descriptive data base and the goods attribute description database of RFID Information Monitoring; The logical address of RFID triggering collection device is arranged in the described physics warehousing system descriptive data base, and goods attribute description database has the shelf physical address, and described logical address is corresponding with physical address data; Described triggering fault-tolerant addressing method step comprises:
A. put into goods warehouse entry information typing goods attribute description database, and with goods and to be equipped with on the RFID label of goods pallet;
B. the pallet information of goods information correspondence is recorded in the database; (because the capacity I of label can not write down goods information, so write down the corresponding informance of goods and pallet with database);
C. in database, find out idle shelf chord position and distribute to the warehouse entry cargo pallet and deposit;
D. in the deposit position record typing physics warehousing system descriptive data base that distributes, obtain the logical address of physics storage address and pairing RFID triggering collection device;
E. the pallet that goods is housed is moved on the shelf chord position of distributing and deposit, the RFID tag triggers of pallet the RFID triggering collection antenna on the shelf chord position, the RFID label information of pallet reads by RFID triggering collection device node, and is sent in the system through repeater;
F. whether system's storage address that the information of depositing of the pallet received is checked with system assignment coincide;
G. as coincide, then confirm information in the database of typing;
H. as misfit, then the cargo storage information updating of reality in database, realize the automatic fault tolerant addressing of warehoused cargo.
Described radio frequency control chip connects at least 1 RFID triggering collection antenna by shielding line.
Described goods warehouse entry information comprises Description of Goods, goods coding, goods model, goods specification and quantity of goods.
This method has adopted radio RF recognition technology to realize triggering automatically identification, and under large warehoused environment, it is complicated that the networking of RFID tag triggers device becomes.Provide the data path that solves intensive read-write system to isolate and the matching addresses problem in this example.Large-scale manufacturing storage amount is huge, its shelf, tray number may reach thousands of, each pallet all is deployed with electronic tag, each goods yard all is deployed with the read-write antenna, the quantity of read write line is estimated to reach several thousand, as seen the RFID data communication is very frequent, to set up the corresponding relation of physical location and logical address on the one hand, handle the ordering of signals collecting and communication well, anti-collision, anti-tampering, signal screening, signal such as selects at key problem, handle RFID trigger network reaction velocity problem well, to handle the isolating problem of signal on the other hand well, prevent cell failure initiating system fault, by diagnostic software, very first time fault location unit is so that in time fix a breakdown simultaneously.
The science that RFID disposes is directly connected to stability, validity and the availability of system, for realizing that RFID triggers fault-tolerant addressing, prevent the phase mutual interference and the conflict of communication path simultaneously, rfid system is disposed to be divided into and is three-level network, primary network station is made up of Control Server and repeater, two grade network is made up of repeater and radio-frequency (RF) acquisition device node, and three-level network is made up of radio-frequency (RF) acquisition device node and RFID triggering collection antenna; Present embodiment as depicted in figs. 1 and 2, primary network station comprises four secondary subnet networks, each secondary subnet network comprises 20 Level 3 subsidiary networks, each Level 3 subsidiary network comprises the RFID triggering collection antenna of 66～132 radio-frequency (RF) acquisition device nodes and 66～132 * 6; Adopt the 125KHz frequency wireless to connect between RFID triggering collection antenna and the electronic tag, the transmission mode of RFID triggering collection antenna and radio-frequency (RF) acquisition device node adopts 485 industrial bus technical transmission, power supply adopts grouping power supply mode, the shared power supply of per 6 radio-frequency (RF) acquisition device nodes.
Described radio-frequency (RF) acquisition device node is made of power supply unit, communication chip, microprocessor chip, radio frequency control chip; Wherein power supply unit provides power supply for other each chips; Communication chip is responsible for carrying out data interaction with Control Server, and communication chip receives the Control Server order and sends order to microprocessor chip, passes to Control Server by communication chip feedback implementation status behind the microprocessor chip processing command.
Therefore microprocessor chip is responsible for the processing controls server command and is controlled the work of radio frequency control chip; The radio frequency control chip is connected with microprocessor chip and is connected with the RFID triggering collection antenna of 6 125KHz frequencies by shielding line, and the radio frequency control chip is responsible for the instruction works of pressing microprocessor chip; Described communication chip, microprocessor chip, radio frequency control chip all are the standard chips on the market.
The method of attachment of each chip is: can produce 5V voltage after the power supply unit energising, power supply unit provides 1.8V and 3.3V voltage to microprocessor chip; Power supply unit and radio frequency control chip are by being electrically connected, and power supply unit provides 5V voltage to the radio-frequency antenna in the radio frequency control chip; Communication chip is connected with repeater by RS-232 or RS-485 order wire.
Its workflow is: at first power supply unit provides energy to other each chips after connecting stabilized voltage supply, a plurality of RFID triggering collection antennas that microprocessor chip control radio frequency control chip is connected send the radiofrequency signal (present embodiment has connected six RFID triggering collection antennas) of 125MHz, and whether constantly search in its radio frequency induction scope has electronic tag to enter or leave; In the pallet that electronic tag is housed enters the induction range of any one antenna, the radio frequency control chip reads the label information on the pallet and delivers to microprocessor chip by RFID triggering collection antenna, microprocessor chip sends to repeater to the information that reads through RS-232 or RS-485 industrial bus order wire by communication chip again, repeater is sent to Control Server, has so just realized that goods puts the automatic triggering identification of shelf into;
Left when the label tray in the induction range at antenna in the induction range of antenna, the RFID triggering collection antenna of radio frequency control chip can not read the label information on the pallet, then the radio frequency control chip is delivered to microprocessor chip with the information that pallet leaves, microprocessor chip sends to repeater to the information that reads by RS-232 or RS-485 industrial bus order wire by communication chip again, repeater is sent to Control Server, has so just realized that goods leaves the automatic triggering identification of shelf.
Microprocessor chip adopts the time-sharing polling strobe mechanism, can carry out timesharing gating acquired signal to each RFID triggering collection antenna at short notice, can realize keyboard point in concrete the application.Control Server sends polling order by communication chip to microprocessor chip, microprocessor chip is fast to six RFID triggering collection antenna timesharing gating polls of its connection, each RFID triggering collection antenna is searched for the pallet electronic tag in its induction range respectively automatically, in the antenna induction scope, just can induce and to the microprocessor chip return message as pallet electronics memo at once, information is returned to Control Server by communication chip, goods on each chord position just can automatically identify so, realizes making an inventory.
In the foregoing description, utilize radio RF recognition technology to realize that large warehoused management process comprises: dynamically to supervise and dispatching platform: to comprise that goods storage, freight traffic volume, cargo storage physics and logical place, the transmission warehouse-in of supervising the warehouse instruct, send the outbound instruction, functions such as mobile equilibrium are guided, kept in the goods addressing; Data mining and analysis platform: comprise generating statistical study form, decision recommendation, storage efficiency analysis, logistics route optimal design, operator's examination and workload statistics etc.
One the cover complete management process comprises: input work flow process, outbound work flow, move the storehouse work flow, the work flow of making an inventory of goods in a warehouse.
Described input work flow process is: inspection tests → making and adhesive label → goods advance pallet → field control server distribute automatically warehouse compartment → convey goods to specify the shelf number of warehouse compartment (mistake has been put also and had no relations, system can automatic fault tolerant) → pallet and shelf automatic butt communication → each operation and corresponding Item Number be transferred to automatically network system → Control Server comparison actual deposit warehouse compartment and theory deposit warehouse compartment whether consistent → the renewal inventory database.
Described outbound work flow is: central computer is assigned outbound plan → field control server establishment outbound instruction → operating personnel and is pointed out by data terminal, arrives information that the pallet → shelf of specifying warehouse compartment → take out from warehouse compartment cargo destined correspondence and pallet disengaging triggering RFID triggering collection antenna → goods leave shelf and is transferred to network system → goods automatically and is transported to exit → to the field control server and beams back and finish outbound job information → renewal central database.
The described storehouse work flow of moving is: as required, Control Server establishment moves pallet that the storehouse instruct → will need the goods correspondence that moves and breaks away from from shelf taking-ups → shelf and pallet and trigger information that RFID triggering collection antenna → goods leaves shelf and be transferred to network system → convey goods to automatically and specify the shelf of warehouse compartment → pallet and the communication of shelf automatic butt → at every turn operate number to be transferred to network system → renewal inventory database automatically with corresponding Item Number.
The described work flow of making an inventory of goods in a warehouse is: be divided into automatic inventory-making and manually make an inventory of goods in a warehouse.The automatic inventory-making flow process: Control Server sends the instruction of the making an inventory of goods in a warehouse → whole unit of RFID triggering collection antenna are scanned → export make an inventory of goods in a warehouse result → result that relatively makes an inventory of goods in a warehouse and the actual storage of goods, sends caution → send the ending message of making an inventory of goods in a warehouse to the field control server when not being inconsistent.
Manually make an inventory of goods in a warehouse and adopt portable RF ID data terminal and bar code terminal, do not need in theory manually to make an inventory of goods in a warehouse, have only when the coupling confusion appears in goods, shelf, pallet and just need carry out.
Claims (7)
1. based on the large warehoused cargo triggered fault-tolerant addressing method of radio frequency identification, it is characterized in that, described method comprises: set up a warehousing system network, grid comprises Control Server, repeater, radio-frequency (RF) acquisition device node and RFID triggering collection antenna; Radio-frequency (RF) acquisition device node is connected with repeater, and repeater is connected with Control Server; Radio-frequency (RF) acquisition device node connects RFID triggering collection antenna, RFID triggering collection antenna is installed on the chord position of cargo pallet shelf, grid also comprises the RFID label, and the RFID label is installed on the pallet, and RFID triggering collection antenna reads the RFID label data by wireless signal;
Described radio-frequency (RF) acquisition device node comprises communication chip, microprocessor chip and radio frequency control chip; Communication chip connects repeater, and the radio frequency control chip is connected with microprocessor chip, and the radio frequency control chip connects RFID triggering collection antenna; Microprocessor chip carries out timesharing gating acquired signal to RFID triggering collection antenna;
Described Control Server comprises: based on information database, physics warehousing system descriptive data base and the goods attribute description database of RFID Information Monitoring; The logical address of RFID triggering collection device is arranged in the described physics warehousing system descriptive data base, and goods attribute description database has the shelf physical address, and described logical address is corresponding with physical address data; Described triggering fault-tolerant addressing method step comprises:
A. put into goods warehouse entry information typing goods attribute description database, and with goods and to be equipped with on the RFID label of goods pallet;
B. the pallet information of goods information correspondence is recorded in the database;
C. in database, find out idle shelf chord position and distribute to the warehouse entry cargo pallet and deposit;
D. in the deposit position record typing physics warehousing system descriptive data base that distributes, obtain the logical address of physics storage address and pairing RFID triggering collection device;
E. the pallet that goods is housed is moved on the shelf chord position of distributing and deposit, the RFID triggering collection antenna of the RFID tag triggers of pallet on the shelf chord position, the RFID label information of pallet reads by RFID triggering collection device node, and is sent in the system through repeater;
F. whether system's storage address that the information of depositing of the pallet received is checked with system assignment coincide;
G. as coincide, then confirm information in the database of typing;
H. as misfit, then the cargo storage information updating of reality in database.
2. the large warehoused cargo triggered fault-tolerant addressing method based on radio frequency identification according to claim 1 is characterized in that, described goods warehouse entry information comprises Description of Goods, goods coding, goods model, goods specification and quantity of goods.
3. the large warehoused cargo triggered fault-tolerant addressing method based on radio frequency identification according to claim 1 is characterized in that, described radio frequency control chip connects at least 1 RFID triggering collection antenna by shielding line.
4. the large warehoused cargo triggered fault-tolerant addressing method based on radio frequency identification according to claim 1 is characterized in that, described radio frequency control chip connects 6 RFID triggering collection antennas by shielding line.
5. the large warehoused cargo triggered fault-tolerant addressing method based on radio frequency identification according to claim 1 is characterized in that, described RFID triggering collection antenna reads the electronic tag that is installed on the pallet with the radiofrequency signal of 125KHz frequency.
6. the large warehoused cargo triggered fault-tolerant addressing method based on radio frequency identification according to claim 1 is characterized in that, described radio-frequency (RF) acquisition device node is connected with repeater by the RS-485 industrial bus.
7. the large warehoused cargo triggered fault-tolerant addressing method based on radio frequency identification according to claim 1 is characterized in that described repeater is connected with server by network.
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| CN102664644A (en) * | 2012-04-11 | 2012-09-12 | 北京汉朔科技有限公司 | Self-awakening communication method of electronic shelf label systems |
| CN103995536A (en) * | 2014-06-10 | 2014-08-20 | 龙岩烟草工业有限责任公司 | Material tray warehousing method and system guaranteeing accurate material receiving by automatic navigation trolley |
| CN104021361A (en) * | 2014-06-26 | 2014-09-03 | 上海高通半导体有限公司 | Character displaying electronic goods shelf tag |
| CN105427080A (en) * | 2015-12-11 | 2016-03-23 | 上海新储集成电路有限公司 | Warehouse management system and method |
| CN106294247A (en) * | 2016-10-20 | 2017-01-04 | 中山领创网络科技有限公司 | The connection system of a kind of multiple antennas rfid interrogator and many computers and method of attachment |
| CN106829291A (en) * | 2016-12-23 | 2017-06-13 | 南京信息工程大学 | A kind of live-bird automated storage and retrieval system and method for live-bird network trading |
| CN109446863A (en) * | 2018-11-06 | 2019-03-08 | 江苏本能科技有限公司 | More acquisition front side bus management methods and device |
| CN112077825A (en) * | 2020-09-17 | 2020-12-15 | 西安蒲公丁科技有限责任公司 | Walking track for unmanned convenience store robot and walking method thereof |
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| CN106829291A (en) * | 2016-12-23 | 2017-06-13 | 南京信息工程大学 | A kind of live-bird automated storage and retrieval system and method for live-bird network trading |
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Application publication date: 20101117 |
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