CN104135523B - A kind of intelligent RFID aquatic products forecasting shelf life device of embedded Web Service - Google Patents

A kind of intelligent RFID aquatic products forecasting shelf life device of embedded Web Service Download PDF

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Publication number
CN104135523B
CN104135523B CN201410374389.6A CN201410374389A CN104135523B CN 104135523 B CN104135523 B CN 104135523B CN 201410374389 A CN201410374389 A CN 201410374389A CN 104135523 B CN104135523 B CN 104135523B
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China
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node
module
write line
read write
ipv6
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CN201410374389.6A
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Chinese (zh)
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CN104135523A (en
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陈明
蔡新玮
冯国富
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上海海洋大学
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Abstract

It can be mainly used in providing real-time estimate for aquatic products temperature, remaining shelf life information with real-time estimate aquatic products temperature, the embedded Web Service of remaining shelf life information intelligent RFID forecasting shelf life device, described device the present invention relates to a set of.Embedded Web Service intelligent RFID forecasting shelf life device is made up of preposition node and read write line end, governor circuit of the read write line end by 8051 kernels for core, and RFID communication module, controller module, management of charging and discharging module, power module, sensor assembly, clock module, Liquid Crystal Module, key-press module composition, described controller module control the normal operation of modules.Described embedded Web Service intelligent RFID forecasting shelf life device realizes that meshed network and Internet are interconnected by completing the structure of its meshed network protocol stack, so that node forms IP-based meshed network, so as to which the gathered data of realization device is independent, prediction is fast, well-managed.

Description

A kind of intelligent RFID aquatic products forecasting shelf life device of embedded Web Service

Technical field

The present invention relates to the intelligent RFID aquatic products forecasting shelf life device of embedded Web Service a kind of specifically Say, be to be related to Safety of Aquatic Products monitoring field, be mainly used in during Distribution of Aquatic Products, as the supervising device of aquatic products, Whole real-time dynamic monitoring, security state evaluation and prediction are carried out to the safety of aquatic products.

Background technology

The most products in existing cold chain food safety monitoring field more use passive RFID tags, although its into This is low, but identify apart from it is limited, data space is small, recognition rate is low, typically only serves the effect of identification information;Lack master The function such as dynamic early warning, dynamic monitoring.Document Taoukis PS, Labuza TP.Applicability of Time- Itd is proposed in temperature Indicators as Shelf Life Monitor of Food Products by active RFID Technology is applied in embedded device, realizes that food safety risk is monitored, assessed in real time on the basis of the record of information and tracking With prediction, but its intelligence degree is limited, only includes the identification technology to food individual and related facility, and communication mode is point pair Point communication pattern, when reading and writing a large amount of label datas at the same time, easily occur signal conflict problem, cause some data can not and When read and transmission.

China Patent Publication No. CN101714224 A, publication date on May 26th, 2010, invention and created name electronic type south Penaeus vannamei shelf life predicting expert system, that application discloses active label using the related letter of multi-sensor collection aquatic products Cease, and the remaining shelf life of aquatic products is calculated by corresponding aquatic products forecasting shelf life algorithm, then shown by liquid crystal display Current Temperatures, shelf life and the time provided by calendar clock module, and by these data Cun Chudao extension storage modules, When needing these data, host computer can be sent data to by RS232 serial ports.But it is the failure to propose in IPv6 technology bases Embedded Web Service technologies are built on plinth, are provided a user by the function of node in a manner of Web service, side Just user quickly obtains real time information.

Existing food safety management equipment communication mode is point-to-point communication pattern, reads and writes a large amount of number of tags at the same time According to when, easily occur signal conflict problem, cause some data can not read and transmit in time.The acquisition of information is dependent on read-write The reading of device, it is unfavorable for information management automation and the raising of efficiency.

Based on the privately owned specialized protocol between reader, label and back-end network, cold chain food safety supervisory system is presented Multi-platform to coexist, incompatible, data can not effectively share, manage and difficult in maintenance, cover system numbers when food is related to circulation more According to unified standard difficult to realize and interface, so as to be difficult that unified and open study plot realizes food tracking and retrospect.

Existing node is constructed without Embedded UDP/IP agreements so that and Dynamic data exchange, prediction are fast, well-managed, Meanwhile Embedded IP network is not applied to the links of Distribution of Aquatic Products, and do not give Internet network equipment Web Service are provided so that the acquisition of information is not very convenient, meanwhile, also it is unfavorable for the historical information inquiry of aquatic products, it is right The management of tracing to the source of aquatic products brings limitation.

The content of the invention

The purpose of the present invention is to be directed to deficiency of the prior art, there is provided a kind of embedded Web Service intelligence RFID aquatic products forecasting shelf life devices, pacified by RFID intelligent water product prediction devices in each link complete documentation food of cold chain The relevant information of total quality, read write line receive the category information and carry out necessary information processing, there is provided open unified interface, lead to Cross and call such interface, be easy to the application of the third party application of specific function.

To achieve the above object, the present invention adopts the technical scheme that:Design a kind of embedded Web Service intelligence RFID forecasting shelf life devices, are related to the host computer of access Internet network, and the prediction meanss include read write line end and preposition Node, UDP/IPv6 protocol stacks are embedded in the preposition node, form IP network, create preposition meshed network, it is described preposition Node realizes that meshed network and Internet are interconnected with read write line end by building network protocol stack so that node composition is based on IP Meshed network, the characteristics of so as to which the gathered data of realization device is independent, prediction is fast, well-managed.

The meshed network protocol stack of the intelligent RFID forecasting shelf life device of the embedded Web Service, Neng Goushi Existing data interaction between intelligent RFID meshed network and Internet, so as to provide the user web services to complete food peace The monitoring management of full Internet of Things.

The invention has the advantages that:

1st, the present invention proposes one kind and monitors Internet of things device in real time based on cold chain food security, and its energy on-demand service is in cold The links such as the processing of chain food, transport, refrigeration, sale, the status information of aquatic products in complete perception and recording process, realize To the automating of each link of production process, intelligentized security monitoring;And by the cold chain water based on web service of the present invention The Internet of Things cloud service method of product, aquatic products during the real-time complete perception of various internet-of-things terminals or collection cold chain can be passed through The quality information of product, web services provide the functions such as data, services, data integration for other distributed meshed networks, intelligence Real-time Monitoring Data caused by node submits to network by way of WEB requests.Third-party application program directly passes through reading Write the data that device obtains each node.One typical third party application is food security traceability system, when hair dessert quality When measuring security incident, request web services are numbered by food information, the food is obtained and owns caused by from production to final consumption Relevant data, the source of accident generation is determined by the abnormal data analyzed in returning result.Based on open Web Service's The interaction that service interface contributes between different manufacturers, regional food security smart machine, helps to break away from because of information technology To logistics and constraint caused by distribution.Due to Web Service interfaces standardization and preferably it is open, expansible with can It is managerial, it is easy to the exploitation, development and software upgrading of New-type label or reader;Meanwhile in view of IP and Web Service agreements Maturity, make its using, exploitation expense can also substantially reduce.

2nd, the problems such as present invention effectively overcomes single traditional food traceability system information and lack of wisdom, belongs to Internet of Things The new exploration that net is applied in field of food safety, achievement in research not only contribute to promote the progress, right of food safety monitoring technology Real-time security monitoring, state estimation and forecasting research provide strong support, while also the technology of Internet of things in other fields will be ground Studying carefully has important reference.

Brief description of the drawings

Accompanying drawing 1 is the Nomenclature Composition and Structure of Complexes block diagram of the present invention.

Accompanying drawing 2 is the meshed network protocol stack structure block diagram of the present invention.

The meshed network of accompanying drawing 3 establishes the flow chart of IPv6 network linkings with read write line.

Accompanying drawing 4 is the overall Web service block diagram of the present invention.

Embodiment

Embodiment provided by the invention is elaborated below in conjunction with the accompanying drawings.

Fig. 1 is the Nomenclature Composition and Structure of Complexes block diagram of embedded Web Service intelligent RFID aquatic products forecasting shelf life device. As illustrated, the present apparatus is mainly made up of meshed network and read write line end, want to realize that intelligent commodity shelf phase prediction network needs to set Exclusive RFID intelligent nodes and the embedded UDP/IP protocol stacks on node are counted, IP network is formed, creates preposition meshed network. In order to allow intelligent node to access Internet, intelligent node needs to realize UDP/IP network protocol stacks.Supported to build The product safety that Web Service are accessed monitors Internet of Things intelligent RFID node, it is necessary to which UDP/IP protocol stacks are simplified into intelligence RFID nodes, UDP/IP network services are provided by RFID.Research is for having run UDP/IP protocol stacks on this basis The Web Service services of intelligent RFID node structure customization, realize the networking of intelligent RFID node and read write line end, so as to complete Paired Web Service access.This process completes two key points:A. assisted using the 6LoWPAN possessed under contiki systems View, the built-in host-host protocol of IP protocol stack and UDP of node, it is achieved thereby that the framework of the UDP/IP protocol stacks of node, group Into preposition meshed network;B. on IPv6 bases, CoAP servers, the application layer association of miscellaneous equipment are run in intelligent node View only needs to realize that CoAP Client functions may have access to intelligent node, such as passes through Windows operating system Internet Explorer application programs.Or the WEB Client kits provided using other development languages can be realized easily pair The access of intelligent node.Read write line end sends CoAP protocol commands, and preposition meshed network can be obtained in a manner of Web service and is appointed The information of meaning node.

As shown in figure 1, the Nomenclature Composition and Structure of Complexes at read write line end is mainly by read write line communication module, controller module, discharge and recharge Management module, power module and user interface module composition.Controller module controls other each module normal works. Read write line communication module main chip select be CC2530, it be it is a be internally integrated MCU and RF, there is 256KB Flash With 8KB SRAM, 6LoWPAN and CoAP chip can be achieved.Meanwhile by being embedded in IPv6 protocol stacks and root node to node Broadcasting command is sent using RPL Routing Protocols, so as to realize the intelligent node of IP based network and read write line and preposition node net Network is connected, and the information exchange of read write line and meshed network is all presented in a manner of Web Service.Power module selects 3.7V/ 5000mA lithium battery provides power supply for other modules, and what management of charging and discharging module was selected is MCP73831 chips to power module Management of charging and discharging and protection are carried out, it is whole so as to ensure to ensure that power module persistently can provide power supply for modules The lasting normal operation of individual device.After read write line end and preposition meshed network establish the link, user can by scan operation, The IPv6 addresses of preposition node are obtained, so as to generate the IPv6 of preposition node address list;User can carry out obtaining/setting Real time information operates, the real time information such as the temperature of acquisition/setting arbitrary node, time, shelf life;User can carry out obtaining/ The historical information such as history information operations, the temperature of acquisition/setting arbitrary node, time, shelf life is set;User can also be carried out Upload information is operated, and the information of acquisition is reached into cloud service network by WiFi/GPRS, is third party application, pipe of tracing to the source It is convenient that reason system and client provide, and access Internet can inquire about, monitor and manage the links of aquatic products, ensure aquatic products The Quality Safety of product.

Fig. 2 is that the meshed network protocol stack of embedded Web Service intelligent RFID forecasting shelf life device builds frame Figure.In order to realize intelligentized RFID food securities network web services, the present invention realize intelligent RFID meshed network with Data interaction between Internet, so as to provide the user web services to complete the monitoring management of food security Internet of Things.This The header suppression of the 6LoWPAN adaptation layers of the constructed protocol stack of invention is using LoWPAN_HC2 modes, for compressed udp And ICMP;The burst of 6LoWPAN adaptation layers mainly carries out transparent link layer burst and restructuring with restructuring to IPv6 packets; The multicast of 6LoWPAN adaptation layers is supported mainly to realize IP multicast functionalitys using the model flood mechanism of broadcast;6LoWPAN adaptation layers The MAC layer route present invention mainly realizes root node and preposition node networking using RPL Routing Protocols;IEEE 802.15.4 Define the physical layer and data link layer of wireless sensor network.Physical layer and data link layer and not responsible network topology is built The work that vertical and topological structure is safeguarded.Safeguard that the work of topological structure allows 6LoWPAN adaptation layers to complete.In addition, it is based on Each sensing node in 6LoWPAN wireless sensor network has the IEEE address designators of 64, in general 6LoWPAN network node storage capacities are very limited, and the deployment of node is large-scale, if directly using 64 ground Location will take message length, reduce efficiency of transmission.The present invention is using the EUI-64 addresses of IEEE distribution as intelligent RFID shelf The ID number of phase prediction meanss, the CC2530 chips of node, which dispatch from the factory, distributes unique address of 64, is added before this address The prefix of 64, collectively constitute the IPv6 addresses of 128 of node.

In the protocol stack structure of the present invention, IPv6 agreements, which are cut, remains configuration of IP v6 addresses, encapsulation IPv6 reports Head, next hop address, the message that analysis and processing receive, to more than IPv6 MTUs are selected according to destination address Message carry out burst and restructuring function.Cutting specific practice to IPv6 agreements is by some nonessential fields and optional Field removes header, is placed in the extension header after IPv6 headers;Remove the processing to IPv6 extended heads, so both Protocol stack size can be reduced, while simplify Message processing, reach the effect for reducing power consumption;Remove the place of burst extended head Reason, while ensure that the message size of transmission is less than the minimum MTU of IPv6;Finally, remove destination extended head processing, subtract The data transfer of few sensor node, so as to effectively save electricity.

If Fig. 3 is the flow chart that meshed network and read write line establish IPv6 network linkings, as illustrated, the root at read write line end Node sends broadcasting command, and preposition node once receives broadcast singal, active with root node networking.It is not received by broadcast Signal may proceed to frame and listen, untill frame hears broadcast singal with root node networking.It is after preposition node and root node networking or raw Into a routing table, there are the information of all preposition nodes, the IPv6 addresses of most importantly preposition node in routing table.Get Behind the IPv6 addresses of preposition node, read write line carries out node scan according to the IPv6 addresses of preposition node, scans all sections Point, the node scanned just establish IPv6 network connection with read write line.

Fig. 4 is the overall Web service block diagram of embedded Web Service intelligent RFID forecasting shelf life device.Intelligence The Web service layer of RFID forecasting shelf lifes device structure network is mainly the protocol stack structure of meshed network, is embodied in The realization that 6LoWPAN functions and IPv6 agreements are cut;Intelligent RFID forecasting shelf life device application Web service layer be mainly The Web Service of data acquisition, data fusion and data storage;The Web of intelligent RFID forecasting shelf life device application display Service layer can provide comprehensive Web Service, mainly show the Web service of aquatic products kind, pass through TEMP Device, the Web service of real time temperature is then shown, aquatic products is calculated according to the real time temperature of collection and remaining shelf life prediction algorithm The Web service of product remaining shelf life, the Web service of current time is shown, show the Web service of the postcode of aquatic products and by number According to the Web service stored, to check historical information, the aquatic product source for after provides Information Assurance.

The present invention realizes is embedded in UDP/IPv6 agreements in node, is embedded Web Service intelligent RFID goods Frame phase prediction meanss do technical support, the overall Web service of framework lifting device.

Claims (1)

1. the intelligent RFID forecasting shelf life device of embedded Web Service a kind of, it is related to the upper of access Internet network Position machine, the prediction meanss include read write line end and preposition node, UDP/IPv6 protocol stacks are embedded in the preposition node, form IP network, create preposition meshed network, it is characterised in that:The read write line end include read write line communication module, controller module, Management of charging and discharging module, power module and user interface module;
The read write line communication module, for by being embedded in IPv6 protocol stacks to node and utilizing RPL routes association according to node View sends broadcasting command, to realize that network connection is realized in the preposition node and read write line end by network protocol stack;
The read write line communication module includes being internally integrated MCU and RF CC2530 chips, RFID/IPv6 transformation mechanisms, structure IPv6 protocol stacks, read write line and meshed network connection mechanism, read write line and meshed network connectivity application;
The IPv6 protocol stacks are built to specifically include determination 6LoWPAN functions and cut IPv6 agreements;Determine 6LoWPAN functions Specifically include:Header suppression is carried out to 6LoWPAN adaptation layers, for compressed udp and ICMP;6LoWPAN adaptation layers are divided Piece and restructuring, for carrying out transparent link layer burst and restructuring to IPv6 packets;Build the multicast branch of 6LoWPAN adaptation layers Hold, for realizing IP multicast functionalitys using the model flood mechanism of broadcast;IPv6 agreements are cut and specifically included:By non-key field and Optional Field removes header;Remove to the processing of IPv6 extended heads;Remove burst and expand head processing;Remove destination and expand head Portion is handled;
The read write line concretely comprises the following steps with meshed network connectivity application:Broadcasting command is sent according to the root node at read write line end, Preposition node once receives broadcast singal, active with root node networking;It is not received by broadcast singal and may proceed to frame and listen, directly Untill frame hears broadcast singal with root node networking;After preposition node and root node networking or a routing table is generated, is route There is the information of all preposition nodes in table, after getting the IPv6 addresses of preposition node, read write line is according to the IPv6 of preposition node Address carries out node scan, scans all nodes, the node scanned just establishes IPv6 network connection with read write line;
The user interface, for obtaining the IPv6 addresses of preposition node, generate the IPv6 address lists of preposition node;With In the humidity of acquisition/setting arbitrary node, time, shelf life information;For the information of acquisition to be uploaded into cloud service network;
The power module is connected with the read write line communication module, controller module respectively, for providing electric energy for each module;
The management of charging and discharging module is connected with the power module, for carrying out management of charging and discharging and guarantor to the power module Shield, power supply is provided to ensure that the power module can be continuously modules;
The controller module respectively with the read write line communication module, the management of charging and discharging module, the power module and The user interface module connection, for controlling modules normal work.
CN201410374389.6A 2014-08-01 2014-08-01 A kind of intelligent RFID aquatic products forecasting shelf life device of embedded Web Service CN104135523B (en)

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CN107689898A (en) * 2017-08-31 2018-02-13 赛尔网络有限公司 The system and method that computer room based on 6LoWPAN remotely monitors
CN108403389A (en) * 2018-04-03 2018-08-17 闽南师范大学 A kind of intelligent blind-guiding cap
CN109765952A (en) * 2019-03-06 2019-05-17 苏州贝昂科技有限公司 Intelligent aquatic products controlling terminal and system

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