CN101790250A - Socialized supervision and detection network system for food safety - Google Patents

Socialized supervision and detection network system for food safety Download PDF

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Publication number
CN101790250A
CN101790250A CN200910250113A CN200910250113A CN101790250A CN 101790250 A CN101790250 A CN 101790250A CN 200910250113 A CN200910250113 A CN 200910250113A CN 200910250113 A CN200910250113 A CN 200910250113A CN 101790250 A CN101790250 A CN 101790250A
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food
information
wireless sensor
sensor node
described
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CN200910250113A
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CN101790250B (en
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彭保
马建国
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西南科技大学
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Abstract

The invention discloses a socialized supervision and detection network system for food safety, which comprises a first-level wireless sensor network, a second-level wireless sensor network, a third-level wireless sensor network, a three-level base station node, a monitoring network and a user terminal. The first-level wireless sensor network consists of sensor nodes distributed at the source of each food and RFID; the second-level wireless sensor network consists of sensor nodes distributed in a primary processing area for foods and on processing equipment, and RFID; the third-level wireless sensor network consists of sensor nodes distributed in a deep processing area for foods and on processing equipment, and RFID; the three-level base station node wirelessly communicates with the wireless sensor networks in each level respectively; the monitoring network facing the user terminal is formed by connecting the base station nodes in each level and a management control center server with a communication network; and the user terminal is composed of a communication terminal. Both the sensor nodes and a monitored object have uniqueness. The user terminal can monitor any part of the whole flow of the foods from the source to the market in real time in a mode of transmitting a query command.

Description

Food security socialized supervision, detection network system

Technical field

The present invention relates to supervision, detect network system, particularly food safety supervision, detection network system.

Background technology

Food security be related to broad masses of the people healthy and life security, be related to agricultural product reputation and international image.Because poisonous and harmful substance residual quantity height, environment pollute the source of agricultural production and agricultural planting and aquaculture and increasingly sharpen in the food.Food-safety problem constantly takes place and the trend that grows in intensity is arranged in recent years, even has reached the vegetables expert and dare not eat vegetables, animal husbandman and dare not eat the state that meat, fisheries expert dare not be eaten fish.For example, " tonyred " incident, " clenbuterol hydrochloride " incident, " problem milk " incident and " how precious fish ", " Sanlu milk " incident or the like all valid certificates the importance of food-safety problem.Therefore, the safety problem of varieties of food items is subjected to the great attention of society and government day by day, and food security has become the problem that the whole world can not be avoided.But food security relates to complexity, the global question in a plurality of fields such as agricultural, animal husbandry and industrial production, and it not only needs effective system and strict management, also needs effective, advanced modern technologies support.

Because it is too extensive that food-safety problem relates to the field, use the method for wireless sensor network to mainly contain following several types at present in food security and the directly related field:

(1) realizes type that certain the concrete link in aborning industry of food or the industry is monitored, detected based on RFID (electronic tag) or based on RFID and wireless sensor network technology.As the article " Field Experiment of an E-xtendable Traceability System:Application to the Quality Control of Beef-Product Distribution " that Nobuo OKABE delivered on the International Conference on In-telligent Pervasive Computing in 2007, just utilize sensor network and RFID formerly to expect that the traceed back system of sale studies by raising at beef; The food of BeiJing, China's Olympic Games in 2008 has also all adopted the system's correlation technique of can tracing back, and the production process of food is reviewed; The article " the RFID sensor network is in the research in food production field " that the Du Yudong of 2008 Beijing University of Science and Technology delivered on the 21st the 5th phase of volume of industrial control computer magazine, then RFID and sensor node are used in combination, the environment of food production and the sanitary condition of facility are controlled and production equipment is controlled.

(2) utilizing certain transducer such as Fibre Optical Sensor or temperature, humidity etc. to constitute sensor network monitors some index that food produces in certain concrete link. such as Hibernian E.Lew-is were respectively at the 111-112 curly hair table " Comparison of k-NN and n-eural network methods in the cl-assification of spectral data from an optical fibre-based sensor syste-m used for quality control in the food industry " at SE-NSOR ACTUATORS B magazine in 2005; The 1st phase delivered " Optical fib-re sensors for assessing food quality in full scale production ovens-a principal component analysis and artificial neural network bas-ed approach " at the 2nd volume of Nonlin-ear Analysis:Hybrid Systems magazine in 2008; Delivered " Monitoring food quality using an optic-al fibre based sensor system-A comparison of Kohonen and back-propagation neural network classification techniques " in 2006 in the 2nd phase of the 17th volume of Measurement Science and Technology magazine and delivered " Design of a s-ystem that uses optical-fiber sensors and neural networks to controla large-scale industrial oven by monitoring the food quality online " in the 6th phase of the 5th volume of I-EEE Sensors Journal magazine in 2005 and just mainly studied the method for utilizing optical pickocff that the food color is controlled, thereby finish in the industry control to relevant issues such as food colour and the duration and degree of heating. Also have some documents that a certain specific targets in some link in the food generation are studied.Having introduced a kind of sensor node by several measurements sampling products and ambient temperature information as article " Architectureof automatic monitoring system for fresh food quality using wireles-s sensor network " forms and carries out message transmission by the 2.4G frequency. logical system; Then introduced the sensor network of the physical parameter of monitoring different farming regions in the article " Energy efficient routing algorithms for application to agro-foodwireless sensor networks ", but it has mainly studied the routing issue in the field irrigation sensor network system; International monopoly " WO2008140212-A1 " " Ubiquitous sensor network-based system for automatically managing food sanitation; Has manag-ement server analyzing/storing received data based on data-base, andoutputting analyzed/stored data when data is warning message " then mainly utilizes sensor network that sanitary ware and kitchen food are carried out the monitoring of hygiene; High wise the volume in the article of delivering on the 4th phase " towards the wireless sensor network system design of food security " at Chinese journal of scientific instrument the 29th of Dalian University of Technology proposed in 2008, if allow the consumer fully visit the information of food, just can eliminate their misgivings for food security in processes such as production, transportation, storages.Only a kind of temperature acquisition system based on wireless sensor network is furtherd investigate based on this this article.

(3) only be to study at certain local link of food production." rural area agricultural sensor network designs alternately " article of in IEMSs international conference in 2008, delivering as the people such as K.Walker of London University, just introduce the author and in little home farm of Kenya, designed a sensor network, be used for collecting the information of farm, two villages information, the article " Sensor Networksand the Food Industry Martin Connolly " that Ireland researcher delivers in REALWSN international conference in 2005 has then been studied sensor network and polluted repeatedly problem institute energy role in being prevented the food supply chain.

Serious day by day along with international and domestic food safety problem, the malignant event in food security field is more and more, also more and more at the personnel that existing problems in the whole flow process from the farmland to the retail in the food generation are studied, and formed a food sensor network research group, this group is by the representative from academia, the representative of the different piece of sensor technology industry and food industry is formed, and can provide the expert to instruct (seeing the article that 2004 the 85th the 5th phases of volume delivered " Sensors sensibility[food sensor network] " for details on Process Engineering magazine) in technology and others at this directionality problem.Therefore, the existing correlative study content of analysis-by-synthesis finds that mainly there is the following points problem in existing food security intelligent monitor system.

(1) great majority research all only is to study at certain link or certain concrete monitoring index that food produces, studies for user's whole process as an indivisible system and have to be planted as food selling by plant.Because a kind of food may relate to the food chain of a complexity, any one link of whole link goes wrong and all can cause the research influence to following process production.Therefore, be far from being enough only at certain link or certain specific targets research.For example, the milk powder of selling in the market, will experience by forage growth, milk cow health situation, cowboying personnel or enterprise provide original milk to the dairy products plant, undertaken by the dairy products plant in these processes such as production and processing and sale, if cowboying personnel or enterprise offer the original milk of dairy products plant very serious quality problems are arranged, all can there be quality problems in the dairy produce that is obtained by this milk processing so.Thereby it is not enough at this moment only monitoring the dairy products plant.

(2) in the monitoring application based on RFID and sensor network, much all be that RFID is used in combination with sensor network.Also can obtain sensor network and the RFID advantage in application although it is so, but described system is not integrated into the electronic label read/write function in the sensor node, cost is higher, size is big, use inconvenience and the flexibility of deployment shortcoming.

(3) in the existing wireless sensor network application system, all load some fixed sensing on the sensing unit in most sensor nodes, yet in actual application environment, a lot of situations need be used the transducer of some other types, load new transducer thereby need also that at this moment sensor node is carried out secondary development.This method for designing is very dumb in actual applications, is unfavorable for the extensive popularization that wireless sensor network is used.Therefore, but the mode that the sensing unit in the patent of the present invention in the sensor node adopts pedestal sensor and expansion slot to combine, can allow the user load the transducer of various needs easily, thereby greatly improve wireless sensor network availability in actual applications.

(4) do not have whole process which research produces food as a system, the quality that will monitor food from pure pollution-free food, half pollution-free food, high yield food and the several angles of dangerous food is classified and the information that will monitor and analyze acquisition directly sends to the user.Simultaneously, the wireless sensor network of existing correlative study does not find that also which kind of wireless sensor network food security intelligent monitor system is that a society is the main users group in using.Transformation on this customer group has the important meaning, and it is only exercised supervision food security and extends to social supervision by relevant government department, and this has turning significance in solving food-safety problem.

(5) do not have which research be with food from initial plantation, culture the whole process that the consumer eats and further investigate as an indivisible big system, just the uniqueness problem that more need not have at sensor node, base-station node and monitored object in this system is not effectively studied.

At the deficiency of above-mentioned discovery, thinking does not also have a kind of otherwise effective technique can assist administrative department or carries out complete monitoring according to existing food production system.Food production is carried out complete monitoring must could carry out check and analysis to indexs such as the material of product, quality by the multiple sensors technology; Must can low-cost information real-time, that effectively will detect or monitor continuously be sent to user terminal by wireless communication technology, make society can see on the spot in personly, hear, smell, experience the whole process of food production, and then society can oneself judge that every kind of food is from the former production process of expecting the whole flow process and the quality, particularly some pollution-free foods of product; This food safety monitoring system must can seamless link with existing various wireless, wireline communication networks, thereby can effectively utilize prior art and equipment to reduce the cost of described supervisory control system to the full extent; Transducer described in this food safety monitoring system preferably can have certain storage and disposal ability, thereby can carry out buffer memory and forwarding after the primary treatment to the magnanimity information that transducer obtains.Wireless sensor network as a kind of new technology have fully the food security necessary for monitoring have the ability, and can further guarantee the authenticity of monitoring content in conjunction with the RFID technology.

In view of the popularity in the related field of food safety monitoring system and the complexity of the technology that requires, and existing supervisory control system comparatively it is desirable to set up a kind of food safety monitoring system that uses wireless sensor network and RFID technology in the deficiency in food security field.

Summary of the invention

The objective of the invention is to solve the difficult problem that food production can't be carried out omnidistance socialization monitoring effective, feasiblely, and existing monitoring technique can't be used for the deficiency of food security monitoring, and a kind of food security socialization monitoring system based on the RFID wireless sensor network is provided.

In order to achieve the above object, the present invention adopts following technical scheme:

A kind of food security socialization monitoring system based on the RFID wireless sensor network comprises:

Form first order RFID wireless sensor network by the sensor node and the RFID that are distributed in the varieties of food items source;

Form second level RFID wireless sensor network by the sensor node and the RFID that are distributed on food preliminary working zone and the process equipment;

Form third level RFID wireless sensor network by the sensor node and the RFID that are distributed on food deep processing zone and the process equipment;

By three grades of base-station nodes radio communication respectively and between above-mentioned first to the third level RFID wireless sensor network;

Being connected with communication network with the management control center server by above-mentioned three grades of base-station nodes forms the monitor network of user oriented terminal, and wherein communication network includes but not limited to one or more of INTERNET network, satellite communication network, 3G communication network;

Form user terminal by communication terminal, wherein communication terminal includes but not limited to connect one or more of mobile phone of computer, satellite communication network terminal, the 3G communication network of INTERNET network.

In such scheme, described food source, food preliminary working and three grades of food deep processings are by planting or culture the relative division that the edible preceding whole process of consumer is carried out as an indivisible continuous integral body to food.Because any food has the food chain that has a complexity behind, each link in this link all can influence each other.Therefore, it is far from being enough only some index of this link (as the residues of pesticides on the vegetables etc.) or certain link (as some food processing enterprises etc.) being analyzed, and must proceed from the situation as a whole that whole process is carried out multiple sensible form and merge the overall situation monitoring that utilizes.This division purpose among the present invention is from whole angle the whole process of food " by the farmland to dining table " to be studied as the system of an interwoveness, thereby analyzes the weak spot of food safety monitoring on the whole and solve.

In such scheme, further, the control command of described system can only be by this management control center server issue, sensor node in the described RFID wireless sensor network at different levels and described base-station node at different levels can be realized the controlled function of instruction, and described query statement can be sent by any terminal, making the terminal use pass through this device can be at any time, the online truly everywhere video that passes through, audio frequency and check the production process and the product quality of each flow process of transducer supervision food of usefulness, thereby the continuous operation and can truly reflect the information of being monitored effectively of assurance system; RFID wireless sensor networks at different levels in the described system are in round-the-clock continuous duty all the time.

In such scheme, further, all integrated rfid interrogator and described RFID operating frequency are identical with radio frequency chip operating frequency in the described sensor node in the sensor node in the described RFID wireless sensor network at different levels and the described base-station nodes at different levels.Be that CPU, wireless communication unit, power subsystem and the antenna part of utilizing self in the sensor node in the described RFID wireless sensor network realizes the literacy to label that rfid interrogator will be finished, its with ultra broadband (UWB) as the radio communication interface, thereby can make it to be used for more neatly the multi-path environment of food processing enterprises complexity and the abundant monitoring field, farmland on a large scale of mobility environment.

To adopt digital watermarking algorithm to carry out encrypted transmission from the important information that can characterize the sensor node uniqueness such as the hardware ID information of the uniqueness identification information of label, clock information, each transducer and key as digital watermark information in the described sensor node.Owing to can not only assist government regulator and food enterprise that the food production process is monitored based on the food security socialization monitoring system of RFID sensor network, main is that this system will can directly monitor society by multiple sensible form towards numerous crowds in real time to the whole process that food produces.Therefore for the enterprise that has food-safety problem, wish on the one hand to utilize this system to improve the product reputation of oneself, become domestic consumer and international community relieved brand fully, to improve the market value of own product.According to user's query contents, the monitoring information that this system obtains can send to the user in real time on the other hand.The operation meeting that relates to food-safety problem is more so directly found by society, thereby enterprise is caused irremediable loss.Therefore require monitored food enterprise and individual, can not be by distorting, replace or destroy sensor node, the modes such as target of base-station node and monitoring, destroy the prerequisite real-time of this system, validity and authentication feature, be in the system each node all by system management, maintenance department disposes, each node all is unique in system, all monitoring objectives all have the uniqueness sign of oneself and embody correlation between each monitoring objective with polynary group form in whole system, we are called the uniqueness problem of this system with this class problem, and it will determine directly that can this system be widely used in practice.

Some enterprises and individuals can be under huge interests drive in the practical application, seek this uniqueness that the whole bag of tricks destroys system, thereby before the method that proposes uniqueness, must analyse in depth the problems such as uniqueness potential safety hazard that actual deployment environment, system works form and timely tracking system may exist, in practical application condition and RFID wireless sensor network under the constraint of node limited resources, this will be very difficulty but the safety problem that must constantly solve.For this reason, having proposed among the present invention will be from the uniqueness identification information of label in described sensor node, clock information, the important information that can characterize the sensor node uniqueness such as the hardware ID information of each transducer and key is embedded in the sensitive information of sensor node and base-station node monitoring and transmission as digital watermarking, structure is based on the RFID wireless sensor network information watermark frame model of uniqueness information, form reliably, can not distort, complete data message and monitoring information inquiry system utilize the digital watermark method that has uniqueness information can also improve the security performance of RFID wireless sensor network protocols effectively simultaneously.

As a kind of Information Hiding Techniques, can in information flow, embed secret informations such as meaningless random sequence or meaningful copyright sign, user's sequence number in the watermark of above-mentioned number formulary word, so as to realize information copyright protection, prevent from illegally to distort etc.In this project, with label information on time, node hardware ID, polynary array and the monitoring objective etc., the information with uniqueness characteristic embeds as digital watermarking

In the case, further, the perception of the sensor node in the described RFID wireless sensor networks at different levels part adapts with the characteristics in place food processing stage, but and described sense part set up separately in respect of expansion slot more than.Because system of the present invention relates to applied environment complicated, that difference is huge.For example, multiple sensors when being used to monitor the animal and plant growing state in food source, for example detect the chemical sensor whether used synthetic chemical fertilizer, monitoring animal and plant growth cycle video sensor, detect the transducer of animal feed quality and monitor the chemistry of this work-in-process quality and video sensor or the like, multiple sensors when being used to monitor food processing process is for example monitored some physical sensors of production equipment ruuning situation, the video sensor of monitoring production process and transducer that product quality is detected or the like.Thereby, when designing and producing the sensor node of described system, it is infeasible fully that the transducer that uses under the different application environment is all disposed on each sensor node, on the other hand, need understand the detection technique of each link in depth and some is maintained secrecy at varying environment Application Design and the sensor node of producing configuration difference in functionality transducer for the enterprises and individuals, thereby this method also is infeasible.Take all factors into consideration, think that effective, easy and the most feasible method is the expansion slot that sensing unit (part) design at sensor node can the various dissimilar sensors of flexible configuration.This design philosophy is similar with the design philosophy of the large-scale charger for mobile phone that a lot of public places are placed, all be to extract the common interface characteristics of object (transducer or mobile phone), as the connecting interface of object and processing unit (part such as the central processing unit of sensor node and power supply or the power supply of powering), thereby can use different objects easily and flexibly to mobile phone.And, being used for wireless transceiver circuit that communicates with neighbor node and the data processor that is connected with transducer and transmission circuit, each described sensor node has solar energy or lithium battery.

In such scheme, further, the object that sensor node in the described RFID wireless sensor network at different levels and RFID label are monitored is perceived to generate not replaceable information with sign, with the sudden change threshold values of this perception information as digital watermark information, adopt digital watermarking algorithm to carry out encrypted transmission, be sent to base-station node time processing in place after the sensor node preliminary treatment of described information by communication with it and send described management control center server at last to and handle, issue.Whether perception information suffers that artificial destruction can comprehensively judge according to the variable quantity and the time factor of perception information parameter, determine different sudden change threshold values according to different perception information parameters, when the variation of a certain monitoring target perception information surpassed the digital watermark information sudden change threshold values of reserving, the sensor node at this monitoring target place can generate the unusual report of this monitoring target automatically and report is sent to base-station node and management control center server.The main purpose of this design is in order to ensure the uniqueness of monitored target and authenticity, and the object of make finding, being examined is the object of user's (or management Control Server) appointment, and this point is significant in system of the present invention.

In such scheme, further, the sensor node in the described RFID wireless sensor network can be divided into mobile and static two kinds according to deployed environment.

In such scheme, further, between the sensor node in the described RFID wireless sensor network and between sensor node and the base-station nodes at different levels all by the wireless mode formation wireless self-networking of communicating by letter.

In such scheme, further, be extensive use of RFID in the described system and carry out the uniqueness sign, specifically comprise: the sensor node in every grade of RFID wireless sensor network all is integrated with rfid interrogator, also all be integrated with rfid interrogator on the base-station node in every grade of RFID wireless sensor network, can also some rfid interrogators be set and can carry out radio communication at diverse location according to concrete work-yard and environment simultaneously with base-station node.

In such scheme, further, described system is in such scheme, and further, described system user terminal (terminal) can be that the computer of networking, the cellphone subscriber who opens 3G, wired or digital cable customers and other use user terminal wireless, wireline communication network arbitrarily.

Compared with prior art, the invention has the advantages that:

The present invention can be from food production expects that from former the whole flow process of product carries out complete monitoring, and have that volume is little, low in energy consumption, networking easily, social utility be worth big, dispose implement convenient, with low cost, society can directly monitoring etc. remarkable advantage.

Description of drawings

Fig. 1-for the present invention is based on food security socialized supervision, the detection system operation principle schematic diagram of RFID wireless sensor network and RFID;

Fig. 2-be the schematic diagram of sensor node in the example of the present invention;

Fig. 3-be the schematic diagram of basic point in the example of the present invention.

Fig. 4-for the present invention is based on food security socialized supervision, the detection system holistic approach flow chart of RFID wireless sensor network and RFID

Fig. 5-be the user access information process chart in the example of the present invention

Fig. 6-be the green milk meat products of the present invention socialization monitoring exemplary plot

Embodiment

Further specify below in conjunction with accompanying drawing:

As shown in Figure 1, the formation of system of the present invention comprises 2 kinds of nodes and 1 control and management server, and the title and the function of various device are as follows:

(1) sensor node.Be distributed in the inside of different monitored areas according to certain rules, be responsible for gathering interested perceptual parameters in each monitored area, as temperature, humidity, plant pesticide remnants, used chemical fertilizer type, the use of industrial processes raw material and products in circulation process etc., and the data route is sent to the base-station node of this monitored area.

(2) base-station node.Be equipped with a base-station node in each monitored area, be mainly used to be responsible for collecting the data that all sensing nodes are gathered in this monitored area, and send data transmission network to.

(3) management control center server.Gather all monitored area data computing machine systems, generally be positioned at long-range management control center.Be responsible for to analyze, show and the supervision network data, generate the safe suggestion of food production process automatically, and issue real-time oversight information by forms such as Internet to the social common people, the social common people also can utilize user terminal to watch in real time and dispose the whole industrial processes process of RFID wireless sensor network food and the safety instruction of raw material quality supervision.

Say that on the whole system of the present invention mainly is made up of control and management center, base-station node and RFID radio sensor network monitoring zone three parts.As shown in Figure 1, specifically comprise sensor node, base-station node and control and management central server, they constitute whole food security socialized supervision, detection system based on the RFID wireless sensor network jointly.Sensor node is to use at most, kind node the most widely, these nodes can be static or motion, can equip video sensor or chemistry, physical sensors realize to growing process, fertilizer in the raw material plantation apply that process, agricultural chemicals apply that process and industrial processes are raw materials used in producing, machining process and products in circulation process carry out whole process and supervise, and each sensor node all have can not distort, irreplaceable uniqueness electronic mark.Base-station node is information gathering, the transmission node that each monitored area is equipped with, and this node is fixed, and has represented the exclusive number of this monitored area, generally is placed on the geometric center position of monitored area.It had both converged the perception data of one's respective area, finished the controlled function that the management Control Server is given again.The management Control Server gathers all monitored area data computing machine systems, generally is positioned at management control center at a distance.The safe suggestion of being responsible for analyzing, show and supervise network data and generating the food production process automatically, and issue real-time oversight information by forms such as Internet to the social common people, the social common people also can utilize user terminal to watch in real time and dispose the whole industrial processes process of RFID wireless sensor network food and the safety instruction of raw material quality supervision.

System of the present invention has real-time oversight, warning function, and the management control center server can be handled the food security hidden danger that exists in each monitored area and can produce great food-safety problem warning message, and stores and send to corresponding supervision department in real time.For extrahazardous food security hidden danger, terminal server can be reported to the police with the form of voice, so that relevant supervision department handles in time.Among the present invention functions peculiar be exactly can be at any time, any link of the whole flow process of locating query food production everywhere, this has made full use of the location and the RFID technology of wireless sensor network, the user only needs by terminal server issue specific instruction, automatically navigate to the node in the indication zone by food security socialized supervision, detection system, and the monitoring parameter of present this point is reported to the user based on the RFID wireless sensor network.

Fig. 2 has embodied the overall structure of sensor node.

Because in the present invention, need be with sensor node deployment in different applied environments.Thereby in sensor node, the concrete monitoring index that can finish as required uses different transducer and contour structures with deployed environment.But sensor node still can abstractly be divided into perception, information processing, RFID card reader, less radio-frequency and power supply several sections as shown in Figure 2.The perception part mainly comprises the transducer and the interface circuit composition that is used for the new transducer of extended loading that is used for index interested in the deployment region is carried out perception.The information treatment part branch comprises central processing unit, memory and node identify label and clock composition.Integrated rfid card reader part in sensor node, mainly confirm for the identity of monitoring target being carried out uniqueness, and be combined in enciphered message and the uniqueness information that is provided with in the agreement that loads on the sensor node and the algorithm, make monitored target can't forge this sensor node, can't distort important information in this sensor node, can't in the whole big flow process of food production, replace monitored material.The less radio-frequency part mainly is that the data that information processing partly need transmit are carried out sending with certain frequency after conversion, spread spectrum and the modulation, and the CC2420 that general employing frequency is 2.4G among the present invention is as the less radio-frequency main chip.Wherein, central processing unit, memory, clock are connected in transducer and corresponding information processing and the wireless communication section of measuring special parameter.Sensor node provides different supply power modes according to different deployed environment, and for example when the farmland was monitored, the form that can adopt solar energy and battery to replenish was mutually powered; When monitoring in the industrial environment of food processing and production and animal feeding, the mode that adopts the electric power system used in battery and industry and the raising factory to be used in combination is powered.

Fig. 3 has embodied the structure of base-station node of the present invention.

As shown in Figure 3, the monitored base stations node is made up of central processing unit, memory, power supply, RFID card reader, wireless communication section and wired network communication interface section, and CPU, memory are connected in RFID card reader, wired network communication interface section and wireless communication section.Monitored base stations must adopt the wireless mode that combines with wire communication, Information Monitoring aggregation node as the different monitored areas of chain type RFID wireless sensor network, be sent to long-range management Control Server by cable network, after long-range management Control Server processing, process information is sent to the user in real time by wired and Radio Network System.Base-station node is to be powered by the mode that civil power and back-up source combine.

Fig. 4 has embodied the food security socialized supervision based on the RFID wireless sensor network, the overall process of detection system work.

As shown in Figure 4, the remote management and control server by the base-station node in wired or wireless network, the monitored area at different levels, move and the static sensors node to the real-time direct monitoring of interested index in each monitored area, utilize this cover intelligent monitor system can realize the relevant every index of food security in the monitored area is monitored, and, realize the most at last food is carried out real-time oversight and control from the overall process of planting processing along with the continuous expansion of monitored area and perfect.Its concrete steps are as follows:

Step s4-1: management control center starts whole system;

Step s4-2: wireless sensor node and the base-station node disposed in all guarded regions start at once;

Step s4-3: service centre determines the physical location and the operating state of a wireless sensor node and base-station node in management control, repairs at the appointed time and the record trouble reason if go wrong;

Step s4-4: if if all wireless sensor nodes and base-station node all are presented at management control all wireless sensor nodes of clothes and base-station node all is presented on the management Control Server, then determine all node regions, distribute the uniqueness sign, and begin communication, each monitored area is monitored in real time;

Step s4-5:, then reorientate wireless sensor node and base-station node if also have node on the management Control Server, correctly to show;

Step s4-6: if static sensor node then communicates by the route of other static sensors node and the base-station node of monitored area, place, and interested index in this zone is monitored in real time;

Step s4-7: if the wireless sensor node that moves, because the restriction of the communication distance of radio communication in the process of its motion, may be led to different static wireless sensor nodes;

Step s4-8: after mobile wireless sensor node detects the static wireless sensor node that can communicate by letter with it, form RFID wireless sensor network from group with the base-station node of static wireless sensor node and monitored area, place;

Step s4-9: long-range management Control Server connects each base-station node, sends instruction and receives the data that base-station node is beamed back to each base-station node;

Step s4-10: the management Control Server is analyzed all wireless sensor node monitoring informations that obtain, and utilizes the graphical interfaces that is easy to watch to be presented at the management Control Server.

Fig. 5 has embodied food security socialized supervision, the detection system information processing flow process of user terminal access based on the RFID wireless sensor network.Its concrete steps are as follows:

Step s5-1: user terminal sends the food information that will check to the management Control Server of this system, and the automatic location of system is with this food each concrete zone from planting processing;

Step s5-2: system works is normal fully in all concrete guarded regions that this food relates to, and then with the video and the perception data of specified monitored area, utilizes graphical interfaces to show that directly also coupling system analysis conclusion sends to the user;

Step s5-3: if exist in the guarded region that this food relates to can't operate as normal sensor node or (with) base-station node, then sensor node in the guarded region that goes wrong and base-station node are carried out examination, the management Control Server starts all monitoring equipments of this zone and synchronously this zone is monitored by satellite, and charges to credibility record.Simultaneously, to instruction manual will be at the appointed time repair system and apologize, return the fees thus collected and introduce failure cause;

Step s5-4: if in the guarded region that this food relates to all the sensors node or (with) base-station node is all in operate as normal, then record trouble reason, punishment responsible person concerned and to instruction manual repair system and apologize, return the fees thus collected and introduce failure cause at the appointed time;

Step s5-5: solve fault at the appointed time and make food security socialized supervision based on the RFID wireless sensor network, detection system fully after the operate as normal, with the video and the perception data of the related monitored area of user's assigned food, utilize graphical interfaces to show that directly also coupling system analysis conclusion sends to the user;

Step s5-6: video and perception data and network analysis conclusion that user receiving system sends, and send satisfaction etc. and feed back to the management Control Server.

As shown in Figure 6, each link that green beef, dairy produce food chain directly relate to is all according to zoned format of the present invention, and the RFID sensor network of disposing different stage is used to monitor the All Ranges in this food chain.Dispose a plurality of sensor nodes of the present invention (comprising the sensor node that has video sensor) according to actual environment in the monitored zone, all have one or more RFID labels on each monitoring objective (object), the local RFID wireless sensor network that sensor node of disposing in each different monitored areas and RFID label are formed all belongs to different stage RFID wireless sensor network in whole system part is presented on the management Control Server, and each local RFID wireless sensor network has a base-station node at least.The information that local RFID wireless sensor network in the RFID wireless sensor networks at different levels obtains this monitored area inner sensor by base-station node is artificially revised the ground real-time Transmission without the external world and is given the management Control Server, base-station node and management communicating by letter and can adopt wired or wireless transmission according to actual conditions between Control Server are referred to as data transmission network among the present invention.The original video of the sensor acquisition that the management Control Server is concerned about the user according to the Query Information of user terminal and detect indication information and management Control Server system at the analysis result that detects index, artificially transmit user terminal without any external world with revising, simultaneously, video that the management Control Server arrives according to sensor acquisition in the RFID wireless sensor networks at different levels and the analysis result that detects indication information will exist on beef, the dairy produce or potential food security, quality and operational issue directly sends to quality monitoring department of government concerned.

Specific to green beef, dairy produce field, both need carry out the whole process monitoring in forage grass growing environment and the quality of ox, these are monitored forage grass environment, quality and obtain the RFID wireless sensor network that is attached to ox RFID label information on one's body and have constituted one-level RFID wireless sensor network, and this one-level RFID wireless sensor network mainly is that the most initial raw material growing environment of this food chain is monitored.The video that whether consistent growing environment of ox (as soil, atmosphere, water, peripheral integrated environment, forage grass and one-level RFID radio sensor network monitoring etc.) and slaughterhouse dispose and detecting pay close attention to that index uses as described in sensor node form secondary RFID wireless sensor network, this one-level RFID wireless sensor network mainly is that the environment and the product in this food chain preliminary working stage are monitored.The product in this stage mainly comprises the most original milk, will be sent to the ox of slaughterhouse and the beef that the slaughterhouse produces, system of the present invention is with it link as system, at the container that loads the milk of producing, transport on the car of the ox that this system monitors and slaughterhouse's operational environment, the beef of flow process and final production, transport on the vehicles of required beef of next stage, require additional RFID label and one or more described sensor node (wherein on the car real-time video transducer will be arranged) to guarantee the uniqueness of this link system monitoring object of the present invention.Simultaneously in order to prevent this uniqueness of artificial destruction, having proposed among the present invention to adopt will be from the uniqueness identification information of label in described sensor node, clock information, the information that can characterize the sensor node uniqueness that the hardware ID information of each transducer and key etc. are important and the sudden change threshold values of monitoring target perception information are embedded in the sensitive information of sensor node and base-station node monitoring and transmission as digital watermarking, structure is based on the sensor network information watermark frame model of uniqueness information, form reliably, can not distort, complete data message and monitoring information inquiry system, utilize this digital watermark method can improve RFID wireless sensor network data transmission safety performance of the present invention effectively, thereby solved uniqueness problem of the present invention to a certain extent.Subsequently, RFID label of disposing in dairy produce enterprise and beef processing enterprise and wireless sensor network of the present invention are formed three grades of RFID wireless sensor networks.This one-level RFID wireless sensor network mainly is that the environment and the product in this food chain deep processing stage are monitored.The product in this stage mainly comprises the milk powder that will sell on the retail market, dried beef, canned beef or the like, system of the present invention is same with it link as system, enterprises in milk and beef deep processing need be to operational environment, production procedure and the product that each step obtained carry out omnidistance real time on-line monitoring, particularly the deployment of video sensor will be selected the position that is fit to so that have good supervision visual angle, and at product that each step obtains or load on the container of this product and all will dispose one or more described sensor nodes and RFID label.Transport on the vehicles of this system product and in the market circulation field and deposit in the environment of this product, require on this product and storage environment in all add RFID label and one or more described sensor node (wherein on the car real-time video transducer will be arranged) to guarantee the uniqueness of this link system monitoring object of the present invention.

Except quality and the fail safe that can monitor green beef, dairy produce, system of the present invention can also be used to monitoring the production overall process quality and the fail safe of green vegetables, grain or the like a series of pollution-free foods.This has very significantly Practical significance for current pollution-free food market present situation hard to tell whether it is true or false.And, the mode of the socialization monitoring that utilizes system of the present invention to propose and realize also has obvious practical significance for effective solution food-safety problem, enterprise had extremely significantly advertisement benefit, can help enterprise in society and consumer, to set up extraordinary product image (brand), can effectively solve the human resources deficiency to the government regulation part, the difficult problem that can't effectively supervise in real time, can allow the consumer pass through oneself at any time for consumer (food user), the food of this system house is disposed in monitoring everywhere, and then these food of relieved purchase, boost consumption, the relieved engineering of food that proposes for country provides a kind of very effective solution technically.

The above method for designing and execution mode only are the preferable main implementation process of the present invention, and be every according to equivalence variation and modification that the present invention did, all at protection range of the present invention.

Claims (9)

  1. A food security socialized supervision, detect network system, comprising:
    Form first order RFID wireless sensor network by the sensor node and the electronic tag that are distributed in the varieties of food items source;
    Form second level RFID wireless sensor network by the sensor node and the electronic tag that are distributed on food preliminary working zone and the process equipment;
    Form third level RFID wireless sensor network by the sensor node and the electronic tag that are distributed on food deep processing zone and the process equipment;
    By three grades of base-station nodes radio communication respectively and between above-mentioned first to the third level RFID wireless sensor network;
    Being connected with communication network with the management control center server by above-mentioned three grades of base-station nodes forms the monitor network of user oriented terminal, and wherein communication network includes but not limited to one or more of INTERNET network, satellite communication network, 3G communication network;
    Form user terminal by communication terminal, wherein communication terminal includes but not limited to connect one or more of mobile phone of computer, satellite communication network terminal, the 3G communication network of INTERNET network;
    Wherein, described food source, food preliminary working and three grades of food deep processings are by plantation or culture the relative division that the whole process of consumer before edible carried out as an indivisible continuous integral body to food.
  2. 2. food security socialized supervision according to claim 1, detection network system, it is characterized in that: the control command of described system can only be by this management control center server issue, sensor node in the described RFID wireless sensor network at different levels and described base-station node at different levels can be realized the controlled function of instruction, and the raw information on the sensor node in the wireless sensor networks described at different levels that the round-the-clock releasing inquiry of described user terminal energy instructs, the request real-time online is consulted appointment.
  3. 3. food security socialized supervision according to claim 1 and 2, detect network system, it is characterized in that: the interior radio frequency chip operating frequency of all integrated rfid interrogator and described electronic tag operating frequency and described sensor node is identical in the sensor node in the described RFID wireless sensor networks at different levels and the described base-station nodes at different levels; And, in described sensor node with the important information that can characterize the sensor node uniqueness as digital watermark information, adopt digital watermarking algorithm to carry out encrypted transmission, the wherein said information that can characterize the sensor node uniqueness refers to the hardware ID information and the key of uniqueness identification information from label, clock information, each transducer.
  4. 4. food security socialized supervision according to claim 1 and 2, detection network system, it is characterized in that: the perception of the sensor node in the described RFID wireless sensor networks at different levels part adapts with the characteristics in place food processing stage, but and described sense part set up separately in respect of expansion slot more than.
  5. 5. food security socialized supervision according to claim 3, detection network system, it is characterized in that: the perception of the sensor node in the described RFID wireless sensor networks at different levels part adapts with the characteristics in place food processing stage, but and described sense part set up separately in respect of expansion slot more than.
  6. 6. food security socialized supervision according to claim 1 and 2, detection network system, it is characterized in that: the object that sensor node in the described RFID wireless sensor networks at different levels and RFID label are monitored is perceived to generate not replaceable information with sign, with the sudden change threshold values of this perception information as digital watermark information, adopt digital watermarking algorithm to carry out encrypted transmission, be sent to base-station node time processing in place after the sensor node preliminary treatment of described information by communication with it and send described management control center server at last to and handle, issue.
  7. 7. food security socialized supervision according to claim 3, detection network system, it is characterized in that: the object that sensor node in the described RFID wireless sensor networks at different levels and RFID label are monitored is perceived to generate not replaceable information with sign, with the sudden change threshold values of this perception information as digital watermark information, adopt digital watermarking algorithm to carry out encrypted transmission, be sent to base-station node time processing in place after the sensor node preliminary treatment of described information by communication with it and send described management control center server at last to and handle, issue.
  8. 8. food security socialized supervision according to claim 4, detection network system, it is characterized in that: the object that sensor node in the described RFID wireless sensor networks at different levels and RFID label are monitored is perceived to generate not replaceable information with sign, with the sudden change threshold values of this perception information as digital watermark information, adopt digital watermarking algorithm to carry out encrypted transmission, be sent to base-station node time processing in place after the sensor node preliminary treatment of described information by communication with it and send described management control center server at last to and handle, issue.
  9. 9. food security socialized supervision according to claim 5, detection network system, it is characterized in that: the object that sensor node in the described RFID wireless sensor networks at different levels and RFID label are monitored is perceived to generate not replaceable information with sign, with the sudden change threshold values of this perception information as digital watermark information, adopt digital watermarking algorithm to carry out encrypted transmission, be sent to base-station node time processing in place after the sensor node preliminary treatment of described information by communication with it and send described management control center server at last to and handle, issue.
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CN102811440A (en) * 2011-06-03 2012-12-05 苏州两江科技有限公司 Wireless sensor network safety transmission method based on watermarking technology
CN102869045A (en) * 2012-09-04 2013-01-09 大唐移动通信设备有限公司 Data transmission method and system
CN102917024A (en) * 2012-09-20 2013-02-06 华东理工大学 Cloud computing and RFID (radio frequency identification) based cow milk quality monitoring system and method
CN103024881A (en) * 2012-11-30 2013-04-03 中国舰船研究设计中心 Node for wireless sensor network
CN103067447A (en) * 2012-12-12 2013-04-24 陈子豪 Food information interaction platform based on Web of Things
WO2013071499A1 (en) * 2011-11-16 2013-05-23 Nokia Corporation Method and apparatus for providing food safety identification and warning
CN103593777A (en) * 2013-11-26 2014-02-19 刘启强 Product traceability authentication method
CN104237177A (en) * 2014-09-19 2014-12-24 杜晨林 Food safety testing system
CN104581432A (en) * 2015-01-01 2015-04-29 北京金石威视科技发展有限公司 Radio and television safe broadcasting detection method based on digital watermark technology
CN104639543A (en) * 2015-01-29 2015-05-20 南京三宝科技股份有限公司 Method for checking legality of collected data of sensor based on radio frequency identification tag ID (identity)
CN104702682A (en) * 2015-02-27 2015-06-10 上海新储集成电路有限公司 Deterrence Internet of Things

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US7372003B2 (en) * 2005-03-22 2008-05-13 Lawrence Kates System and method for monitoring food
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CN102811440A (en) * 2011-06-03 2012-12-05 苏州两江科技有限公司 Wireless sensor network safety transmission method based on watermarking technology
WO2013071499A1 (en) * 2011-11-16 2013-05-23 Nokia Corporation Method and apparatus for providing food safety identification and warning
CN102869045A (en) * 2012-09-04 2013-01-09 大唐移动通信设备有限公司 Data transmission method and system
CN102869045B (en) * 2012-09-04 2015-08-19 大唐移动通信设备有限公司 A kind of data transmission method and system
CN102917024A (en) * 2012-09-20 2013-02-06 华东理工大学 Cloud computing and RFID (radio frequency identification) based cow milk quality monitoring system and method
CN102917024B (en) * 2012-09-20 2015-10-28 华东理工大学 Based on milk quality monitoring system and the monitoring method thereof of cloud computing and RFID
CN103024881A (en) * 2012-11-30 2013-04-03 中国舰船研究设计中心 Node for wireless sensor network
CN103067447A (en) * 2012-12-12 2013-04-24 陈子豪 Food information interaction platform based on Web of Things
CN103593777A (en) * 2013-11-26 2014-02-19 刘启强 Product traceability authentication method
CN104237177A (en) * 2014-09-19 2014-12-24 杜晨林 Food safety testing system
CN104581432A (en) * 2015-01-01 2015-04-29 北京金石威视科技发展有限公司 Radio and television safe broadcasting detection method based on digital watermark technology
CN104639543A (en) * 2015-01-29 2015-05-20 南京三宝科技股份有限公司 Method for checking legality of collected data of sensor based on radio frequency identification tag ID (identity)
CN104702682A (en) * 2015-02-27 2015-06-10 上海新储集成电路有限公司 Deterrence Internet of Things

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