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34results about How to "Easy Traceability" patented technology
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Information platform for logistics industry based on alliance blockchain
ActiveCN109151013ASolve the problem of too much powerEasy traceabilityFinanceUser identity/authority verificationInteraction layerLogistics management
The invention provides an information platform for the logistics industry based on an alliance blockchain, and the system comprises a layered architecture which comprises an application interaction layer and a blockchain consensus layer. The application interaction layer is used for packaging the user data and an operation into a data asset according with the standard and then transmitting varioustypes of requests to a blockchain node in a pre-defined standard transaction mode so as to complete the user operation, and finally storing the data on the blockchain. The blockchain consensus layercomprises a P2P node network for maintaining the blockchain, and a unique blockchain which is jointly maintained through the nodes in the system. The nodes in the P2P node network comprise an endorsement node, an organization node and a submitting node, wherein any node has the capability of updating the blockchain.
Owner:NANJING UNIV OF POSTS & TELECOMM
Walk-in refrigeration unit control and monitoring system
InactiveUS20050056033A1Reduce humidityAccurate and efficient managementAuxillary controllers with auxillary heating devicesStationary refrigeration devicesMonitoring systemProcess engineering
A method for monitoring and controlling of a walk-in refrigeration unit is provided. The method comprises setting at least one of a threshold and timing control values associated to operating modes of the refrigeration unit, receiving at a controller unit operating parameters representative of a condition of at least one of an accessory unit, an environment and a heat exchange unit and controlling a functioning of at least one of the accessory unit and the heat exchange unit according to the control values and the received operating parameters. Other features include communication and data logging capabilities.
Owner:GINGRAS JEAN PIERRE
Calibration method and calibration system for surface source blackbody temperature accuracy
ActiveCN103278264AHigh temperature accuracyHigh precisionThermometer testing/calibrationPlatinum resistanceRadiation temperature
The invention is applicable to the field of temperature correction, and provides a calibration method for surface source blackbody temperature accuracy. The method comprises the following steps that A, M different calibration temperature points are selected in the set temperature range of a surface source blackbody; B, a metering standard platinum resistance temperature indicator is utilized for carrying out temperature measurement on the surface source blackbody radiation source at each calibration temperature point through calibration holes, the real temperature value Ti is obtained, and in addition, the radiation temperature ti of the corresponding surface source blackbody per se is recorded; C, the radiation temperature of the surface source blackbody per se of each calibration temperature point is subjected to linear fitting with the real temperature value measured by the metering standard platinum resistance temperature indicator, and correction factors are calculated; and D, correction factors are utilized for correcting the temperature of the surface source blackbody. The calibration method aims at further correcting the nonlinear error of a platinum resistance temperature measuring system, the measurement precision of the whole system is improved in the full temperature range, the calibration precision of the surface source blackbody radiation temperature accuracy is improved, and the high-precision testing requirement is met.
Owner:CHINA ELECTRONIS TECH INSTR CO LTD
Systems and methods for accessing or managing secured storage space
InactiveCN103210165AEasy TraceabilityEasy to operateApparatus for meter-controlled dispensingElectric permutation locksComputer scienceOperating system
The invention concerns a method for controlling access for a storage enclosure (102). When an item is delivered to the storage enclosure (102), an access code is transmitted to a recipient. The access code is accepted when input by the recipient and access is permitted to the storage enclosure (102). The invention also provides a system for controlling access to a storage enclosure (102) secured by a closure. The system includes a processor (112) configured to transmit an access code to a recipient upon delivery into the enclosure (102) of an item for the recipient, recognize the access code input by the recipient and allow the recipient access to the enclosure (102) by releasing the closure.
Owner:TELEZYGOLOGY
Anti-cheating supervision method and system for electronic scale
ActiveCN104501935AEasy to viewImprove securityUser identity/authority verificationWeighing auxillary devicesComputer terminalLibrary science
The invention provides an anti-cheating supervision method for an electronic scale. The method comprises the following steps: initialization: initializing the electronic scale and uploading to a server for saving and recording; activation: forming an electronic scale ID and a key matched with the electronic scale specific to the approved electronic scale through the server, issuing the electronic scale ID and the key to a handheld terminal, transmitting the electronic scale ID and the key to the electronic scale through an NFC (Near Field Communication) function by using the handheld terminal, writing the electronic scale ID and the key into an NFC tag; verification and authorization: after the electronic scale is activated, performing verification and authorization operation on the electronic scale through the handheld terminal, wherein only the successfully-verified electronic scale can display normally; unpacking authorization: when the electronic scale is damaged, performing unpacking authorization operation on the electronic scale through the handheld terminal, wherein only the electronic scale with unpacking authorization can be unpacked for maintenance. By adopting the anti-cheating supervision method, a law breaker is prevented from cheating on the electronic scale, detailed information of the electronic scale and operation information of electronic scale management personnel can be recorded on the server, and convenience is brought to unified management of a supervision unit.
Owner:FUJIAN METROLOGY INST
Multi-station gas detector calibration instrument and calibration method of multi-station gas detectors
PendingCN109323821AEasy to testQuick testMeasurement of fluid loss/gain rateMicrocontrollerGas detector
The invention discloses a multi-station gas detector calibration instrument and a calibration method of multi-station gas detectors. The multi-station gas detector calibration instrument comprises a machine frame, a calibration station, an air supply device and a monitoring device. A camera, branch liquid crystal displays, a sound-light alarm module and an air supply opening are formed in the calibration station, the monitoring device comprises a microcontroller, an industrial personal computer and a displayer, and a key operation module, an electric current signal processing module, a pressure sensor assembly and a flow sensor are connected to the input end of the microcontroller. The calibration method of the multi-station gas detectors comprises the following steps that firstly, preparation work before test is carried out; secondarily, indication errors of the gas detectors are obtained; thirdly, repeatability of the gas detectors is obtained; fourthly; response time of the gas detectors is obtained; fifthly, drifting values of the gas detectors are obtained; and sixthly, test data of the gas detectors are judged. According to the multi-station gas detector calibration instrument and the calibration method of the multi-station gas detectors, calibration of the multiple gas detectors can be simply, conveniently and rapidly completed, the calibration process is easy to control, and the calibration quality, efficiency and accuracy of the gas detectors are improved.
Owner:TECHN MONITORING CENT OF CHANGQING PETROLEUM EXPLORATION BUREAU
Off-line recharging method and system based on electronic wallet
The invention discloses an off-line recharging method and system based on an electronic wallet and relates to the field of electronic wallet recharging. The method comprises the steps that recharge amount and an EPID are sent to a recharging code generation server terminal by a user; after the recharge amount and the EPID sent by the user are received by the recharging code generation server terminal, conversion and encryption operation are conducted on the recharge amount and the EPID, so that a recharge code of a byte-code mode is generated; the recharge code of the syllable code mode is converted to a recharge code of a numeric string mode by the recharge code generation server terminal so that the recharge code of the numerical string mode can be sent to the user in a mode identical to that of the request sent by the user; the recharge code of the numerical string mode is input into an electronic wallet terminal by the user; after decryption is conducted on the electronic wallet terminal, recharge of the terminal electronic wallet is completed. A wireless POS does not need for recharging, off-line recharge can be completed on the corresponding electronic wallet by the user according to the electronic wallet recharge code, and the coordination of a third party is not needed in the recharging process.
Owner:WUHAN TIANYU INFORMATION IND
Product scheme multi-index evaluation method considering order relation analysis
The invention discloses a product scheme multi-index evaluation method considering order relation analysis. The method comprises the following steps: firstly, collecting a data source, establishing a traceable relationship between demands of a demand model, and controllably transmitting the demands; carrying out functional decomposition on the demand model until multifunctional indexes which can be used for scheme design by designers are obtained; According to the invention, a multi-index weight evaluation design scheme is adopted, an index evaluation matrix is established, normalization processing is carried out to eliminate non-university, an order relation analysis method is adopted to solve index weights, and a comprehensive evaluation value of each scheme is calculated. According to the method, innovative demand modeling and analysis specifications can be formed in product research and development, scheme evaluation can be simply and quickly carried out in the initial stage of product scheme design, and many practical problems which cannot be evaluated from the technical level can be conveniently solved.
Owner:HANGZHOU DIANZI UNIV
Method, device and system for detecting and analyzing inherited metabolic diseases of newborns
PendingCN110322963AAccurate readingRealization of interpretationMedical automated diagnosisLaboratory analysis dataRetrospective analysisWork flow
The invention provides a method, device and system for detecting and analyzing inherited metabolic diseases of newborns. An interpretation mode which combines a computer system, a disease database anda doctor is originally created; the tandem mass spectrometry detection result of the inherited metabolic diseases of newborns can be interpreted more quickly and accurately, and an accurate conclusion can be given; the comprehensive datamation of the whole working process is realized; therefore, the interpretation process can be traced back more easily and can be repeatedly compared and researched in the later period, and the situation that retrospective analysis cannot be carried out due to forgetting in the later period of manual interpretation can be greatly avoided. The system adopts a man-machine cooperation mode to realize higher degree of automation, the investment of labor cost is greatly reduced, and with the increase of data volume and the continuous optimization of the system,the tandem mass spectrometry detection result interpretation of the inherited metabolic diseases of newborns is even possible to realize the artificial intelligence interpretation of a computer.
Owner:成都新基因格生物科技有限公司
Optical module automatic test system and method
The invention provides an optical module automatic test system and method, and the system comprises a PC, a spectral characteristic test module, an optical power test module, an eye pattern test module, a sensitivity test module, and an overload point test module. The spectral characteristic test module, the optical power test module, the eye pattern test module, the sensitivity test module, a LOS test module and the overload point test module are all connected with the PC. The invention aims to optimize and integrate the processes and improve the test efficiency, the automatic test is mainly controlled by the PC, manual operation links such as instrument operation and data recording are released, a single person can control a plurality of test platforms, the automatic test system does not need frequent manual contact with equipment, so that damage and loss to precise instruments in the production process are greatly reduced, and meanwhile, the test efficiency is improved.
Owner:深圳恒朴光电科技有限公司
CTE technology maturity evaluation method and project technology maturity evaluation method
PendingCN107705016AResponsibilities are clearThe evaluation method is scientific and efficientResourcesProcess specificationComputer science
The invention discloses a CTE technology maturity evaluation method. The method comprises the steps of (1) establishing a technology maturity evaluation framework; (2) according to the technology maturity evaluation framework, establishing a technology maturity evaluation general rule; (3) conducting the iteration judgment according to the technology maturity evaluation general rule, and obtaininga final evaluation result. According to the evaluation method, a scientific evaluation criterion, a standard evaluation process and an explicit evaluation organization are established, so that the evaluation method is scientific and efficient, clear in organization duties, standard in process and easy in operation. The evaluation process is convenient for achieving unified management and traceability.
Owner:NUCLEAR POWER INSTITUTE OF CHINA
Safety protection system applied to barbell
ActiveCN113680006AAvoid crushing situationsSafe Strength Training ProcessMuscle exercising devicesStrength trainSimulation
The invention relates to the technical field of training safety, in particular to a safety protection system applied to a barbell, which comprises a falling protection module, and the falling protection module comprises an acceleration acquisition module, a falling analysis module and an emergency protection module; the acceleration acquisition module is used for detecting acceleration data at two ends of a barbell; the falling analysis module is used for analyzing the falling state of the barbell according to the acceleration data of the two ends of the barbell, and the falling state comprises a normal falling state and a dangerous falling state; and the emergency protection module comprises an emergency air bag arranged on a barbell disc and an inflation protection module for controlling the emergency air bag to be rapidly inflated, and the inflation protection module is used for controlling the emergency air bag to be rapidly inflated in a dangerous falling state. According to the scheme, the situation that a user is injured by a barbell is avoided through the buffering effect of the air bag, and therefore life health and safety of the user are guaranteed, and the user is safer in the strength training process.
Owner:重庆科华安全设备有限责任公司 +1
Large-scale multiple optical fiber strain sensing system integrated calibration device and method
Owner:CHINA ELECTRONIS TECH INSTR CO LTD
Animal identity management method and system based on blockchain
PendingCN111831843AEasy traceabilityStill image data indexingTransmissionComputer hardwareAnimal science
The invention relates to an animal identity management method based on a blockchain. The method comprises the following steps: a user uploads pet information including a nose print picture to a client; the client transmits pet information including the nose print picture to the server; the server transmits the nose print picture to a machine vision module, and transmits pet information except thenose print picture to an identity tracing module; the machine vision module converts the nose print picture into nose print information and transmits the nose print information to the identity tracingmodule; and the identity tracing module stores and uplinks the nose print information and the pet information. According to the invention, a user uses a mobile phone and other mobile devices to shoota pet nose print picture, and the nose print picture is used to perform corresponding identification, can achieve unique correspondence like a human fingerprint, and is difficult to forge; after thenose print picture is processed, the nose print information and the pet information are stored and transmitted to the block-chain, so that the nose print information and the pet information cannot bemodified, and traceability is easy.
Owner:GUANGDONG UNIV OF TECH
Catalyst encapsulation data tracing method, device and readable storage medium
PendingCN113379427AEasy traceabilityImprove traceabilityCommerceSensing by electromagnetic radiationComputer hardwareEncapsulated data
The invention discloses a catalyst encapsulation data tracing method, a device and a readable storage medium. The catalyst encapsulation data tracing method is used for tracing the encapsulation data of a catalyst, the catalyst comprises a carrier, a liner and a barrel, the carrier and the liner are both arranged in the barrel, and the liner is arranged in the barrel. The catalyst encapsulation data tracing method comprises the following steps: obtaining packaging data generated by packaging the carrier, the liner and the cylinder to obtain the packaged catalyst; and storing the encapsulation data in a cloud database for a user to retrieve so as to trace the encapsulation data of the catalytic converter. When the encapsulation data of the catalytic converter needs to be retrieved subsequently for maintenance or consulting, the encapsulation data can be directly retrieved from the cloud database; therefore, the tracing mode of the encapsulation data of the catalytic converter is greatly simplified, and the tracing efficiency is improved.
Owner:江苏首华智能装备有限公司
A device and method for measuring the uniformity of an infrared radiation surface
Owner:CHINA ELECTRONIS TECH INSTR CO LTD
Logistics industry information platform based on alliance blockchain
ActiveCN109151013BSolve the problem of too much powerImprove efficiencyFinanceUser identity/authority verificationDigital dataInteraction layer
Owner:NANJING UNIV OF POSTS & TELECOMM
Calibration module for four-probe resistivity tester
PendingCN108508391AReduce volumeEasy to storeElectrical measurementsElectrical resistance and conductanceRotary switch
The invention provides a calibration module for a four-probe resistivity tester. The calibration module includes a voltmeter, the four-probe resistivity tester, a seven-gear resistance module, a seven-gear rotary switch and a DB9 interface male connector; the voltmeter and the seven-gear rotary switch are both connected with the seven-gear resistance module; the seven-gear rotary switch and the four-probe resistivity tester are both connected with the DB9 interface male connector. The calibration module has the advantages that the cost of a calibration device is reduced, compared with a standard sample, storage and transportation are easier, it is easier to trace to an upper-level standard, and the calibration module has good traceability.
Owner:FUJIAN METROLOGY INST
Offline recharge method and system based on electronic wallet
The invention discloses an off-line recharging method and system based on an electronic wallet and relates to the field of electronic wallet recharging. The method comprises the steps that recharge amount and an EPID are sent to a recharging code generation server terminal by a user; after the recharge amount and the EPID sent by the user are received by the recharging code generation server terminal, conversion and encryption operation are conducted on the recharge amount and the EPID, so that a recharge code of a byte-code mode is generated; the recharge code of the syllable code mode is converted to a recharge code of a numeric string mode by the recharge code generation server terminal so that the recharge code of the numerical string mode can be sent to the user in a mode identical to that of the request sent by the user; the recharge code of the numerical string mode is input into an electronic wallet terminal by the user; after decryption is conducted on the electronic wallet terminal, recharge of the terminal electronic wallet is completed. A wireless POS does not need for recharging, off-line recharge can be completed on the corresponding electronic wallet by the user according to the electronic wallet recharge code, and the coordination of a third party is not needed in the recharging process.
Owner:WUHAN TIANYU INFORMATION IND
Smart home sales traceability tracking system
PendingCN113469705AEasy to superviseGuarantee authenticityDatabase updatingDigital data protectionDatabaseInformation acquisition
The invention discloses a smart home sales traceability tracking system, which comprises an information acquisition unit. The information output end of the information acquisition unit is connected with an information gathering unit, the information gathering unit is in wireless sensing connection with an enterprise storage unit and an official storage unit, and the information acquisition unit comprises a commodity information module, a commodity state module, a user information module and a remaining information module. Data are automatically and synchronously stored in official nodes in real time, government supervision can be facilitated, information is updated in real time, information is collected and stored every time the information is updated, data tampering is avoided, meanwhile, collected information is divided carefully, tracing and searching are facilitated, information is stored in multiple modes, it is ensured that data cannot be lost, and the security is high.
Owner:NANJING IOT SENSOR TECH
Data transmission cable with plurality of groups of differential signal transmission units sharing same ground
PendingCN111667948AHigh precisionFlexible designFlat/ribbon cablesFlexible cablesMetal foilCopper foil
The invention discloses a data transmission cable with a plurality of groups of differential signal transmission units sharing the same ground, which comprises a plurality of groups of differential signal transmission units and a plurality of ground wires, wherein the differential signal transmission units and the ground wires are arranged according to a set combination and adopt a transparent insulating hot-melt mylar and a single-sided conductive aluminum foil mylar to be attached to each other; the differential signal transmission unit comprises a hot-melt copper foil mylar and a pair of differential signal lines wrapped by the hot-melt copper foil mylar; the outer side of the hot-melt copper foil mylar is a conductive side and is attached to the conductive side of the single-sided conductive aluminum foil mylar; and the ground wire is connected in a mode of being attached to the conductive side of the single-sided conductive aluminum foil mylar. According to the data transmission cable with the plurality of differential signal transmission units sharing the same ground, the defect that characteristic impedance changes due to the fact that two metal foils cannot be tightly attached directly is overcome, the bandwidth of data transmission is increased, the insertion loss is reduced, and higher density is achieved at the same time.
Owner:广州京兆信息技术有限公司
A campus network ipv6 address division method based on merkle tree
ActiveCN108540586BEasy to implementEnsure safetyEncryption apparatus with shift registers/memoriesEngineeringCampus network
The invention discloses a method for dividing IPv6 addresses of a campus network based on a Merkle tree, comprising the following steps: A. performing information authentication when a device is connected to the campus network for the first time; B. dynamically assigning a temporary IPv6 address through a DHCPv6 server; C. The Portal Server provides an authentication page to the user, and the user fills in the relevant attributes; D. The authentication center constructs a Merkle tree after obtaining the user attributes, and matches the Merkle tree with the Hash value of the user attributes in the database; E. If the matching is successful, the SDN switch uses the Merkle Tree to assign IPv6 addresses to users and bind them to the MAC address of the device. If it fails, you can locate the incorrectly filled attributes and notify the user of the failure of IPv6 address assignment; F. This method can be used for every network terminal in the school. Allocating a unique IPv6 address, the campus network center can analyze the online situation of teachers and students in the school according to this method. This method is proposed on the basis of the current use of IPv6 in the campus network and has certain practicability.
Owner:NANJING UNIV OF POSTS & TELECOMM
A data collaboration system for group product collaborative design based on blockchain technology
ActiveCN113656771BAvoid the phenomenon of not establishing a synergistic relationshipResponsibilities are clearDigital data protectionDigital data authenticationDigital dataData collaboration
The present invention provides a group product collaborative design data collaboration system based on block chain technology, which is used for electronic digital data processing, including a cloud server and a terminal device. Cloud server, the cloud server includes a product progress management module, a product file management module and a product personnel management module, the product progress management module utilizes block chain technology to record the completion progress of the product, and the product file management module is used to store product The design file of the product personnel management module is used to manage the rights of users participating in the design. The product includes several sub-projects, and there is a synergy index between the sub-projects. Through the synergy index, the communication between the design users of the sub-projects can be strengthened, so that the product can strengthen the collaborative relationship in the design process and design a more satisfactory product.
Owner:湖南宸瀚科技有限公司
Block chain original content chaining and distributing system
PendingCN111475780APrevent illegal useEasy to register for protectionDatabase distribution/replicationDigital data protectionControl systemContent management
The invention discloses a block chain original content chaining and distributing system. The system comprises a central control system and a client login unit. The input end of the central control system is electrically connected with the output end of the client login unit through a wire. The input end of the central control system is electrically connected with the output end of a content management unit through a wire, and the content management unit comprises a copyright registration module, a registration code identification module, a storage module, a charging module and a statistics module. The invention relates to the technical field of block chain chaining and distributing. According to the block chain original content chaining and distributing system, the content management unitcomprises the copyright registration module, the registration code identification module, the storage module, the charging module and the statistics module, so that the copyright of the original content is conveniently registered and protected while the original content is published, a user is prevented from illegally using the original content, the infringement phenomenon is reduced, and traceability and responsibility investigation are facilitated.
Owner:厦门区块链云科技有限公司
A method for detecting abnormal knocking noise of gear box off-line
ActiveCN109813546BRealize automated detectionUnified evaluation criteriaMachine part testingSound sourcesNoise
The invention discloses an off-line detection method for a knock abnormal sound of a gearbox. Firstly, based on a statistics method, a random impact interference component in a vibration signal is removed; then, based on a TSA method, a periodic impact component representing the knock abnormal sound of the gearbox is extracted; finally, a kurtosis index of the signal is calculated and extracted tobe compared with a set abnormal sound threshold value, in this way, whether or not the knock abnormal sound of the gearbox exists is judged, and an abnormal sound source is locked on a rotary shaft.The off-line detection method can be applied to the off-line detection stage of the gearbox, in a random impact interference environment, the knock abnormal sound of the gearbox is automatically detected, wrong judgment and judgment missing in human ear detection are avoided, the knock abnormal sound of the gearbox is automatically detected, and the off-line detection method has the advantages ofrealizing uniform evaluation standards, being high in efficiency and low in cost, and easily tracing to the source of the problem.
Owner:苏州微著设备诊断技术有限公司
Logistics business verification method, device and electronic equipment based on block chain
ActiveCN112383607BImprove reliabilityEasy traceabilityTransmissionLogisticsLogistics managementFinancial transaction
The embodiment of this specification provides a method, device, and electronic equipment for logistics business verification based on blockchain. According to this method, the waybill data of the received target waybill is stored in the blockchain; A plurality of positioning data are stored in the block chain respectively; any positioning data is uploaded by the vehicle positioning platform at least in part in response to obtaining the positioning point of the target vehicle; the target waybill is issued by the target vehicle Execute: Execute the target smart contract invoked in the received target transaction to perform verification based on the waybill data and the positioning data; store the verification result in the block chain. In this way, the verified location data cannot be tampered with, and the source is easy to trace, which reduces the occurrence of cheating in the logistics business and improves the reliability of the logistics business verification.
Owner:ALIPAY (HANGZHOU) INFORMATION TECH CO LTD
Classified packaging bag management system
PendingCN111612114AEasy to traceFacilitate later traceability and accountabilityData processing applicationsCo-operative working arrangementsDatabaseManagement system
The invention provides a classified packaging bag management system. The classified packaging bag management system comprises an identification code, a data entry system, a data storage system and a data reading system, the data reading system is in communication connection with the data storage system; four same identification codes are printed on each packaging bag; the data entry system is in communication connection with the data storage system; the data input system records user information of each purchasing user, and each piece of user information corresponds to an identification code on a purchased packaging bag and is uploaded to the data storage system; the data reading system is in communication connection with the data storage system; and the data reading system displays the user information after reading the identification code. The method is convenient for later traceability and responsibility investigation.
Owner:安徽远程喷码印务有限公司
Anti-cheating supervision method and system for electronic scale
ActiveCN104501935BEasy to viewImprove securityUser identity/authority verificationWeighing auxillary devicesComputer terminalElectronic waste
Owner:FUJIAN METROLOGY INST
Systems and methods for accessing or managing protected storage
InactiveCN103210165BEasy TraceabilityEasy to operateApparatus for meter-controlled dispensingElectric permutation locksOperating system
Owner:TELEZYGOLOGY
Fruit tree breeding and seedling tracing method and device based on strong magnetic development
PendingCN112433185ADoes not affect growthSimple structureMagnetic property measurementsCommerceFruit treeOrchard
The invention relates to a fruit tree breeding and seedling tracing method and device based on strong magnetic development, and belongs to the technical field of agriculture. The device comprises a strong magnetic substance, an implantation tool and a magnetic pole developing card or a milliteslameter. The strong magnetic substance is connected with a fruit tree through an implantation tool; and the strong magnetic substances are arranged according to a certain rule. The method has the beneficial effects that (1) the strong magnetic substance implanted into the fruit tree is simple in structure and small in occupied space, and growth of the fruit tree is not affected; (2) the cost is low and is 0.5-1 jiao, the economic burden of seedling raising enterprises and subsequent orchard workers is reduced, and the method is easy to popularize on the market; and (3) corrosion resistance and water resistance are achieved, deterioration is not likely to happen, and source tracing can be easily achieved for a long time.
Owner:SOUTHWEST UNIV +1
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