CN104732179A

CN104732179A - RFID data reading adapter with compatible data format

Info

Publication number: CN104732179A
Application number: CN201510155543.5A
Authority: CN
Inventors: 唐海均
Original assignee: Chengdu Shuo Yun Science And Technology Ltd
Current assignee: Chengdu Shuo Yun Science And Technology Ltd
Priority date: 2015-04-02
Filing date: 2015-04-02
Publication date: 2015-06-24

Abstract

The invention provides an active RFID data reading adapter with a compatible data format in order to eliminate bottlenecks, make current mainstream RFID data reading formats be compatible, and enable RFID data readers manufactured by various manufacturers to be compatible. The data reading adapter comprises a single chip microcomputer, a radio frequency module and a peripheral circuit, wherein the single chip microcomputer controls and coordinates work of functional modules of a reader-writer; the radio frequency module and an antenna achieve communication between a card reader and a radio frequency card, and the antenna is a phase-adjustable antenna with the phase controlled by the single chip microcomputer; the peripheral circuit is composed of a power circuit, an EEP-ROM, an RS232 interface keyboard circuit and an LED display circuit.

Description

A kind of RFID data with compatible data format reads adapter

Technical field

The present invention relates to the data reader of a kind of RFID used in logistics, more specifically, relate to a kind of RFID data with compatible data format and read adapter.

Background technology

RFID is the abbreviation of Radio Frequency Identification, i.e. radio frequency identification.Often be called induction type electronic wafer or closely connect card, contactless card, non-contact card, electronic tag, electronic bar code, etc.RFID radio frequency identification is a kind of contactless automatic identification technology, and it automatically identifies destination object by radiofrequency signal and obtains related data, and the work of identification need not manual intervention, can work in various rugged surroundings.RFID technique identifiable design high-speed moving object also can identify multiple electronic tag simultaneously, swift and convenient to operate.

In enterprise's distribution and in retail trade dispensing, RFID just starts to play a role from that time that goods leaves warehouse.When carload leaves center for distribution, system scans the goods on trailer, and like this, director of store just can follow the tracks of each Shipping information coming from shop Storehouse Information System, knows and have issued which goods, and when they arrive.When trailer arrives shop, then through single pass, have a look at and whether what lost, like this, just no longer need to check each trailer and actual count quantity of goods.Once commodity pendulum is on shelf, when shortage appears in commodity on shelf amount, the RFID reader of embedding sends a piece of news to shop back office, and goods will supplement as required subsequently, doing so avoids the loss on sale because commodity shortage causes.In addition, RFID reader can also be followed the tracks of the sale speed of commodity and be sold best and the poorest commodity, and there is anti-theft security function, as long as the anti-theft function in label is in state of activation, so the sensor of store exit just can send warning information, and at cashier, thief-proof program can be cancelled automatically.At cashier, the goods with label again through last scanning, can upgrade stock simultaneously.In addition, the client in shop can be directly acquainted with the commodity that they want, and obtain at once with label commodity for information about.Like this, select DVD or CD just very simple, because client can any one electronic convenient station interscan product in shop, and select to play video disc or music clip.Past, cashier waiting time length be one headache problem.In new shop, the RFID label tag in shopping cart can tell that shop administration and supervision authorities have how many shopping cart discrepancy shop, if the shopping cart quantity used in shop increases, so just open more cash desk meets the requirement processing a large amount of client.

Radio-frequency technique is extremely wide in the application of logistics.RFID on the many links all linked with one another of the logistics purchasing, store, transport, be sold to service and social benefit play great effect.The application of RFID is mainly divided into the following aspects.

(1) to stock up link

Have employed RFID technique and change in the past traditional dealer's purchase control, utilize read write line to obtain goods and the logistics information that simultaneously arrives, goods programming count information is put in storage after afferent message system; After goods is placed in different depot area, fixing electronic label read/write can be utilized to monitor the storage configuration of goods in warehouse, as specified the statistics of stacking the information such as region, shelf life.When store in a warehouse the region goods time limit near time then automatically send alerting signal to central schedule notifications staff; During outbound, the variation of the information of goods is sent to associated databases equally.Employing RFID technique makes the registration of goods become robotization, more quick and precisely, decreases personnel demand and goods loss, realizes delivery of cargo and picking fast, and reduces carrying cost to greatest extent.

(2) sales section

Businessman uses electronic tag to add up goods at sales section, on the system management software of main frame, only just need can inquire the details of goods, the kind of such as stock and quantity.At cash desk, autoscan and charging are realized to article equally, replace loaded down with trivial details artificial gathering pattern.More make the term of validity problem that consumer pays close attention to, the valid period that system has effective commodity for some is monitored, and reminds businessman to make corresponding process, avoids expired loss; Commodity management system manages goods simultaneously, notifies that businessman replenishes when short supply in time, ensures ample supply and prompt delivery, improves the efficiency of sales section.

(3) transit link

Stick RFID label tag at cargo surfaces, (being such as attached in container and external packing), tracing control can be carried out to goods.After the read write line that the goods be in transportation is installed in the places such as station, harbour, airport, expressway exit reads the information of electronic tag, positional information together with goods sends in the database of goods dispatching center, accurately and timely upgrades the goods information in logistics net.

RFID can realize identification to each part list product in supply chain and tracking, and its key has an only identification code in each RFID label tag.The coding scheme of various article has been there is at present in the field of circulation.Such as, the ISBN code in the JAN code used in bar code, EAN code, UPC code and books.But these are all the codings for product category, instead of for the coding of each part article.

There are two kinds of coding schemes in the application of logistics at present: one is by (UbiquitousID---ubiquitous ID center, Japanese UID center for RFID, in fact this center is exactly the standardization body of Japanese related electronic label) the UID coding scheme that proposes, that supports this camp has NEC manufacturer, information enterprise and printing firm etc., amounts to and has reached 352.The EPC electric product coding standard that another camp is proposed by the U.S. " EPC (electronic product code) global association ".The circulation enterprise of more than 100 US and European such as chain group of retailer Wal-Mart, Britain Tesco that the whole world is maximum is all the member of EPC, carries out technical research support by American I BM company, Microsoft, Auto-ID Lab etc. simultaneously.

Japan UID standard and American-European EPC standard have many differences in the radio band used, information digit and application etc.The frequency range that the electronic tag of such as Japan adopts is 2.45GHz and 13.56MHz, and American-European EPC standard adopts uhf band, such as 902MHz ~ 928MHz; The information digit of the electronic tag of Japan is 128, and the figure place of EPC standard is 96; The electronic tag standard of Japan can be used for stock control, information sends and receives and the tracing management etc. of product and parts, and EPC standard lays particular emphasis on logistics management, stock control etc.

The incompatible primary factor being restriction RFID and developing of standard (particularly about the standard of data format definition).Because there is the identification code that only in each RFID label tag, if its data layout has a variety of and incompatible, so use the RFID product of various criterion just can not be general, this be very disadvantageous to the item circulation under economic globalization.And this problem of the standard of data layout relates to interests and the safety of every country self, current present situation is Japan's " antagonism situation that the large normal structure of the EPC Global two of ubiquitous ID " center " and the U.S. is incompatible; and China also starts the RFID standard formulating oneself, estimates that other many countries also can start to formulate the standard of oneself successively.How to allow these standards compatible, a RFID product can successfully be circulated in world wide, be current important and need in a hurry solve problem.

Another problem about standard is, also there is no the formal international standard about RFID product (comprising each frequency range) at present, at present each producer to release RFID product incompatible, cause the confusion of RFID product on different market and application and incompatible.This certainly will cause obstruction to the RFID product intercommunication in future and development.

Label national standard working group of current China Electronics is considering the RFID standard formulating China, comprise the standard of RFID technique itself, as aspects such as chip, antenna, frequencies, and the various application standards of RFID, if RFID is at the application standard in each fields such as logistics, identification, toll management.

The RFID product of data layout incompatible use various criterion can not be general, and this is very unfavorable to the item circulation under globalization.Current present situation is ISO (ISO (International Standards Organization)) standard and EPC (Electronic Product Code, electric product coding) mutually contend with between standard, China also starts the RFID standard formulating oneself, and other countries also may can formulate corresponding standard.Just there is communication between these standards, melted problem mutually in this.

On the other hand, the formal international standard about RFID product (comprising each frequency range) is not also had at present.The RFID product that each manufacturer releases is incompatible, causes the confusion and incompatible of RFID product on different market and application.This certainly will form obstacle to the RFID product intercommunication in future and development.In addition, China also lacks corresponding standard in the frequency range of ultrahigh frequency, and future, the emphasis that this frequency range will be government, enterprise's application.At present, the problem faced by China is that domestic supply on restriction chain uses ultrahigh frequency RFID, thus also limit the use of EPC coding.Relevant departments need the problem solving this respect as early as possible.

In the logistics operational process of reality, the RFID that the incompatibility problem of RFID data form causes each loglstics enterprise upgrading, the manufacturer that must produce RFID for each when safeguarding RFID provides goes to buy multiple RFID reader.This becomes the bottleneck of RFID application gradually in the evolution of loglstics enterprise.

Summary of the invention

In order to eliminate above-mentioned bottleneck, compatibilising for the reading data layout of the RFID of present main flow, enable the RFID data reader of each manufacturer production compatible, the invention provides a kind of active RFID data with compatible data format and read adapter, this digital independent adapter comprises: single-chip microcomputer, radio-frequency module and peripheral circuit, wherein, the work of Single-chip Controlling and each functional module of coordination read write line; Radio-frequency module and antenna realize card reader and radio-frequency card ask communicate, described antenna has the phase-adjustable antenna by Single-chip Controlling phase place; Peripheral circuit is by power circuit, and EEP-ROM, RS232 interface keyboard circuit and LED display circuit form.

Described single-chip microcomputer can also select any one of dsp chip or ARM chip.

Described antenna is omnidirectional antenna.

Described antenna is USB type antenna, can match according to actual needs and carry out hot plug to strengthen the compatibility of RFID.

Radio-frequency module only needs 2 signal wires to be connected with single-chip microcomputer.

The invention has the beneficial effects as follows: indirectly unified RFID fetch interface, thus to reduce in logistics progress required for the maintenance cost needed for different RF ID manufacturer.

Accompanying drawing explanation

The active RFID data with compatible data format that Fig. 1 shows in the present invention reads adapter structure schematic diagram.

Embodiment

In the present invention, the data layout of the compatibility providing a kind of active RFID to use, this data layout adopts 16 binary digits to represent, content comprises: 8 bit format version numbers, 8 RFID manufacturer codes, 8 RFID model code, 16 RFID storage card class codes, 8 battery variety codes supported, 96 RFID command blocks, 16 RFID order rreturn values, 48 RFID data blocks, 32 standby blocies and 8 RFID end marks, wherein, described RFID command block comprises: 8 RFID order first symbols, 8 RFID bit rates, 16 RFID command codes, 8 RFID command parameter numbers, 32 RFID command parameters, 16 RFID command parameter School Affairs, 8 RFID order end marks, described RFID data block comprises: 8 RFID data first symbols, 8 RFID data numbers, 16 RFID data values, 8 RFID data check codes and 8 RFID data end marks, described standby block is waited until for subsequent use.

Each data bit in notebook data form is all adjacent layout.

The form of described RFID manufacturer code is: 2 CC country codes and 4 Business Name codes.

8 described RFID manufacturer codes and 8 RFID model code are supporting definition and use.

The structure in the present invention with the RFID data reading adapter of compatible data format is: comprise single-chip microcomputer, radio-frequency module and peripheral circuit, wherein, and the work of Single-chip Controlling and each functional module of coordination read write line; Radio-frequency module and antenna realize card reader and radio-frequency card ask communicate, described antenna has the phase-adjustable antenna by Single-chip Controlling phase place; Peripheral circuit is by power circuit, and EEP-ROM, RS232 interface keyboard circuit and LED display circuit form.

Described antenna is omnidirectional antenna.

The structural drawing of above-mentioned reading adapter as shown in Figure 1.

Claims

1. the active RFID data with compatible data format reads an adapter, and this digital independent adapter comprises: single-chip microcomputer, radio-frequency module and peripheral circuit, wherein, and the work of Single-chip Controlling and each functional module of coordination read write line; Radio-frequency module and antenna realize card reader and radio-frequency card ask communicate, described antenna has the phase-adjustable antenna by Single-chip Controlling phase place; Peripheral circuit is by power circuit, and EEP-ROM, RS232 interface keyboard circuit and LED display circuit form.

2. the active RFID data with compatible data format according to claim 1 reads adapter, it is characterized in that, described single-chip microcomputer can also select any one of dsp chip or ARM chip.

3. the active RFID data with compatible data format according to claim 1 reads adapter, and it is characterized in that, described antenna is omnidirectional antenna.

4. the data layout of the compatibility of active RFID use according to claim 1, it is characterized in that, described antenna is USB type antenna, can match according to actual needs and carry out hot plug to strengthen the compatibility of RFID.

5. the active RFID data with compatible data format according to claim 1 reads adapter, and it is characterized in that, radio-frequency module only needs 2 signal wires to be connected with single-chip microcomputer.