670results about How to "Realize traceability" patented technology

The invention discloses a construction equipment Internet of Things system and method based on the blockchain technology. The system comprises a plurality of Internet of Things nodes, a plurality of blockchain nodes, a plurality of intelligent terminals and a plurality of user terminals, the detection of various environmental information in the building and the monitoring of electrical equipment can be achieved, data are stored in the blockchain nodes in a distributed manner, a data transmission process is encrypted by using the asymmetric encryption technology, and data sharing is performed through a smart contract. According to the construction equipment Internet of Things system and method disclosed by the invention, the blockchain technology is combined with the Internet of Things technology, the consensus mechanism, distributed storage, asymmetric encryption and smart contract of the blockchain technology are applied to the Internet of Things, and many problems faced by the current Internet of Things are solved.

The invention discloses a block chain-based information-authenticating and source-tracing method. The method comprises the steps of (1) acquiring the copy of the original information to be issued by an original information publishing end; (2) generating the hash value of the copy and picking the content information of the copy at the same time; (3) creating the first transaction information based on the content information of the copy and the hash value of the copy; (4) writing the first transaction information into a center database and a block chain, or writing the first transaction information into the block chain; (5) acquiring the transshipment information released by a information transshipment end, and generating the hash value of the transshipment information; (6) comparing the hash value of the transshipment information with the hash value of the copy; if the two hash values are the same, returning a first voucher for representing the information to be true or non-tampered; if the two hash values are not the same, not returning the first voucher or returning a second voucher for representing the information to be not true or tampered. The invention further discloses a corresponding system. According to the invention, the information authentication and the source tracing can be reliably realized.

The invention relates to a device for measuring a frequency scanning absolute distance based on a femtosecond optical frequency comb and a method for measuring the absolute distance based on the device. The device comprises: a tunable laser (1), a polarization maintaining fiber system (2), a double-frequency heterodyne interferometer (3) and a system for measuring a laser frequency and an interferometric phase (4); the tunable laser (1) is used for generating single-frequency, single-line polarization laser, and an output laser frequency can be controlled by the working voltage and current ofthe tunable laser; the polarization maintaining fiber system (2) is used for coupling space laser with a polarization maintaining fiber in an unreflected way, and dividing the space laser into three paths of optical signals with equal optical intensity, and keeping an output laser polarization direction the same as an input laser polarization direction; the double-frequency heterodyne interferometer (3) is used for converting single-frequency laser into double-frequency orthogonal polarization laser, and converting distance information to be measured into phase information of a laser beat signal; and the system for measuring the laser frequency and the interferometric phase (4) is used for precisely measuring and locking and inputting the frequency of the laser, and measuring a phase different between the two paths of alternating current signals.

The present invention relates to IPv6 address class facing business as well as distributing method, corresponding system frame and user terminal. The method includes: dividing the IPv6 address to network address and business address; classing the business address further according to the business provided by telecommunication, so as to form a plurality of addresses relative to various businesses. Wherein, distributing network address to user terminal; distributing business address to various business client of user terminal, the business client applies the business address of its business to operator address management server according to business address apply and distributing protocol, then taking the business address as the source address of communication of client. According to the present invention, it is easy to implement the function of business statistics, user tracing to the source as well as data redirection, and to establish transparent server quality acceptance and realization mechanism between the operator and users, also the management and control to internet of operator is more convenient and efficient.

The invention provides an intelligent medicine safety cabinet and an intelligent medicine management system. The intelligent medicine safety cabinet comprises a main cabinet body and an intelligent control device. A cabinet door of the main cabinet body is rotationally connected with a cabinet body, and a door lock assembly is arranged on the cabinet door and used for controlling opening or locking of the cabinet door. A medicine drawer assembly is arranged in the cabinet body and comprises a plurality of drawers, each drawer is internally provided with a plurality of independent medicine storage spaces, and the medicine drawer assembly is used for drawing out the preset drawer to the preset position or pushing the preset drawer into the cabinet body according to control signals. The intelligent control device is used for determining the permission of a user according to identity verification information input by the user and sending the control signal that the preset drawer is drawn out to the preset position or pushed into the cabinet body to the medicine drawer assembly according to the operation function corresponding to the permission. According to the intelligent medicine safety cabinet and the intelligent medicine management system, the medicine storage safety is improved, intelligent management can be carried out on medicine of different types, and tracing and validity period management based on single medicine can be achieved as well.

The invention relates to the field of data storage technology and information security technology, and relates to an archives data protection system and a method based on block chain technology. The system includes a file management system, a RESTful server, a distributed database under block chain, an intelligent contract system on private block chain and an intelligent contract system on publicblock chain. The file management system is used to realize the local management of archives data; the RESTful server is used to realize the data processing between the file management system, the distributed database under the block chain, the intelligent contract system on the private block chain and the intelligent contract system on the public block chain. Distributed database under block chainis used to backup archival data, intelligent contract system on private block chain is used to store summary information of archival data, intelligent contract system on public block chain is used toanchor intelligent contract system on private block chain. The method is realized based on the system, and the invention can improve the security of the file data.

The invention discloses an anti-fake traceablility system and method based on label reading. The anti-fake traceablility system comprises a label generation module, a circulation information collection module, an image processing module and a data analysis management module which are successively connected. Based on the method of the above system, labels and goods are bound and the information of goods in the generation and circulation processes, a user can obtain goods label images through a terminal, segmentation, text reading, anti-fake characteristic extraction and traceablility information obtaining are carried out on the goods label images, the authenticity of goods is identified according to extracted anti-fake comparisons, and the traceablility information of the goods is obtained by means of interaction of the extracted traceablility codes with a background server. By adopting the anti-fake traceablility system and method, the complexity of anti-fake traceablility is substantially simplified for the user, authenticity of goods is identified off line, counterfeit goods producing area analysis and prediction can be carried out based on the information of goods label images, and expandability and stability are realized.

The invention provides a combined-type source tracing label and a commodity source tracing method and system. The combined-type source tracing label comprises a label body, a bar code and a two-dimensional code; the label body is used for arranging the bar code and the two-dimensional code, and the bar code is used for inputting a name, a production place and a production date of a commodity; the two-dimensional code is used for inputting different stages of source tracing information of the commodity and being read by scanning equipment to acquire all the source tracing information of the commodity, information source tracing and triple counterfeiting preventing of the commodity can be achieved, and therefore a consumer or a law executor can acquire the more accurate commodity source tracing information.

The invention relates to a remote multi-point monitoring system and a remote multi-point monitoring method for subgrade surface settlement, which belong to the field of optical and geometric position measurement. The system comprises a central processing unit and a chain structure, wherein in the chain structure, a reference light source device is taken as a source node and a plurality of subgrade surface settlement remote monitoring devices which are provided with light sources and are positioned at measured points are taken as nodes. The method comprises the following steps of: measuring relative settlement of a previous device by using every monitoring device; accumulating to obtain the relative settlement of the device relative to the reference light source device; and tracing to the source of the reference light source device to a government benchmark to obtain the absolute settlement of the measured points. When the accuracy requirement is high, a traceable error compensation device can be arranged to form closed-loop measurement to modify accumulated errors. As the system does not need mechanical displacement and is low in power consumption during measurement, the system issuitable for an environment without alternating current supply outdoors; by the chain structure, the system realizes remote observation point traceability, and a uniform measurement reference is easyto establish; and the system modifies the accumulated errors during the measurement in a closed-loop mode to improve the measurement accuracy.

The invention provides an online education assessment system. The online education assessment system comprises a knowledge graph unit, a test unit, an assessment unit and a result generating unit. The knowledge graph unit contains one or more knowledge points and association relations between the knowledge points. The test unit contains one or more questions to be tested, and weighted values of the questions to be tested are determined according to associations between the bound questions to be tested and the knowledge points. According to the weighted values, the assessment unit selects part or all questions to be tested from the test as assessment questions which are subjected to assessing by the examinee. The result generating unit generates an assessment result report based on assessment result of the examinee. According to the technical scheme, relations between the knowledge points to be tested are formed into the graphs, and in the ultimate assessment report, the knowledge points which the examinee does not understand comprehensively are displayed.

The invention provides a report data generating method and a report data generating system. The method comprises the following steps including a data source configuration step: building a new data source or modifying the data source, and setting data source information in the data source and database connecting information; a unit mapping configuration step: setting report unit information and checking unit information, and configuring unit mapping information according to the data source, the report unit information and the checked unit information; a financial extraction formula scheme configuration step: selecting a financial extraction formula scheme and a report according to a report example, and generating a financial extraction formula according to the selected financial extraction formula scheme and the report; a data extraction step: receiving number selection conditions, including service schemes, years, periods, unit ranges and report ranges, selected by the users, and selecting the financial extraction formula scheme used for the data extraction from the financial extraction formula scheme according to the number selection condition, extracting data according to the number taking condition and the financial extraction formula scheme used for the data extraction, filling reports in the report range, and generating the report data.

The present invention belongs to the power system power distribution network single-phase grounding fault detection technical field and relates to a small-current grounding fault line selection device-based power distribution network grounding fault location method. The method specifically includes the following steps that: (1) a small-current grounding fault line selection device acquires bus-bar zero-sequence voltage and the zero-sequence current of the head end of each line at a fault time point; (2) a fault indicator acquires fault current peak signals and zero-sequence current signals at the fault time point; (3) the small-current grounding fault line selection device selects a fault line; (4) the small-current grounding fault line selection device collects characteristic signals acquired by the fault indicator on the fault line; and (5) and single-phase grounding fault location judgment is performed. With the method of the invention adopted, the single-phase grounding fault of a power distribution network can be accurately located; and the small-current grounding fault line selection device applies transient signal characteristic frequency band line selection theory, and therefore, the line selection accuracy of the small-current grounding fault line selection device can be higher than 98%, and transient signals can be accurately captured, fault analysis and traceability can be realized, and load on-line measurement, statistics and analysis are supported.

The invention provides a multi-functional torque calibration device and belongs to the field of measurement and detection, torque detection and calibration, and torque testing. The device comprises a basis foundation (10) and a triangular support structure; the triangular support structure comprises a first group of vertical shafts (9), a second group of vertical shafts (3) and a third group of vertical shafts (2). The multi-functional torque calibration device integrates the detection and calibration functions of a hydraulic torque wrench, a torque multiplicator, a torque sensor, and a torductor and realizes wide-range-section, and high-precision multifunctional torque calibration and the source tracing of a standard torque wrench. The multi-functional torque calibration device has the function of a 1,000 Nm high-accuracy reference standard torquer, and can be expanded into 30 kNm reference large-torque calibration device when matched with a special tool.

The invention discloses an article anti-counterfeit and traceability method realized by using block chain and intelligent contract thereof. On the production side, the producer publishes the transaction of the deployment intelligent contract to the block chain, obtains the hash value returned by the block chain, attaches the hash value to the surface of the article, then photographs the image of the designated area on the surface of the article, then publishes the transaction of the deployment image to the block chain, obtains the hash value returned by the block chain, and passes the hash value to the intelligent contract; after the goods reach the consumer end through the circulation link, a consume obtains a hash value one from that surface of the article, then, the hash value 2 is obtained through block chain and intelligent contract, and image 1 is obtained, image 2 of the designated area on the surface of the article is taken, and image 1 and image 2 are identified and compared,and the consistency of the article is checked through the consistency identification and comparison of the images, so as to realize the anti-counterfeiting and traceability of the article.

The invention provides a liquor traceability system based on a block chain, comprises a traceability method, a traceability device, a server and a storage medium, wherein, the traceability method based on a block chain comprises the following steps: after receiving the first two-dimensional code information of a designated product sent by a terminal, decrypting the product information in a main chain system by using a consumption public key to generate product traceability information corresponding to the first two-dimensional code information; the product traceability information being transmitted to the terminal, wherein the product traceability information includes at least one of status information, production information, warehousing information, transportation information and sales information of the product. The technical proposal of the invention can effectively supervise each link of product production and sales, can reliably trace the source of product sales process, is conducive to cracking down on fake and inferior products, and protects the rights and interests of consumers and manufacturers.

The invention discloses a smart grid information transmission safety protection device and a safety protection method, which relate to the technical field of smart grid information transmission safety. The device comprises a certificate server, an encryption and decryption module, a compliance check module and an exception handling module, wherein the encryption and decryption module is wholly serially connected between a station level and a bay level for carrying out encryption signature and signature verification decryption functions on original transparently-transmitted data; the compliance check module grabs a plaintext data packet in an offline or online mode and submits the plaintext data packet to the detection module for compliance check, and as for a compliance message, an analysis result is stored to a log database in a log format; and exception information is independently stored in an exception database through the exception handling module, and an administrator is notified. In the case of permissible delay in the smart grid, the encryption and decryption module together protects the internal information of the smart grid, behaviors that the internal data are tampered and destructed in the case of transmission are resisted, and the safety of the grid is further improved.

The invention belongs to the technical field of intelligent housing, and provides intelligent access control and an intelligent housing system. The intelligent access control comprises a central processing unit, a communication unit, an inner camera, an outer camera and a storage unit, wherein the communication unit, the inner camera, the outer camera and the storage unit are connected with the central processing unit. The communication unit is used for achieving information interaction with the outside. The inner camera and the outer camera are used for shooting the inner area and the outer area respectively, and the shot picture information is stored in the storage unit to record the access track information. According to the intelligent access control, door magnetism, monitoring, visual intercom, access control and intelligent home are combined, the track information of a user and visitors can be inquired and traced, the safety of home life can be enhanced, and the living experience of the user can be improved.

The invention discloses an anti-tamper official document transmission and storage method based on a block chain. Through utilization of an automatic encryption security mode of the block chain, electronic official document hash values are stored to various nodes of the block chain; the electronic official document bodies are stored to various nodes of a document server distributed network; the system automatically monitors and checks electronic official documents and corresponding hash values; and through utilization of the document server distributed network, tampered electronic official documents in a document server are automatically and synchronously restored. According to the method, the problem of identifying whether the electronic official documents are tampered or not can be solvedfundamentally and the tampered electronic official documents can be automatically restored.

The invention discloses a process control and manufacturing execution system in an industrial production line, and the system comprises a central server which comprises a TPOK central database server and a main application server; a client service platform connected to the main application server; a base data and report query platform connected to the main application server; a test file server connected to the main application server; an information collection terminal connected to the main application server; and an ERP central database server connected to the TPOK central database server. The mutual transmission between the information of the main application server and the test file server and the information of the TPOK central database server is carried out. The system combines an internal coding method, a client coding method and a method of internal coding and client coding integration, completely meets the customization requirements of a client for a bar code, avoids the repeating of bar code information to the greatest extent, improves the production precision and information query speed, and achieves the traceability of raw materials and products.

The invention discloses a noise parameter measurement uncertainty evaluation method based on a multi-chip module (MCM) and belongs to the field of measurement metering. The method includes utilizing an equivalent noise parameter equation as a measurement model for noise parameter measurement uncertainty evaluation, utilizing physical quantity measured from a measurement platform to calculate the function equation and obtain data reflecting equivalent noise parameter distribution condition, leading out noise parameter and noise parameter distribution from the equivalent noise parameter and finally obtaining uncertainty for noise parameter measurement. The method effectively combines digital random simulation, physical measurement boundary criterion and least square method optimization criterion, and enables noise parameter uncertainty evaluation to be effective, real and reliable. The method satisfies the national standard, and is flexible in simulation mode, multiple in applicable measurement system variety and strong in universality.

The invention belongs to the technical fields of metering and measuring an ultramicro force value and relates to a measuring device for an ultramicro force value of micro-Newton / nano-Newton grade which includes a lever; one end of the lever is a bearing disk and a spring is hung at the other end; the other end of the spring is fixedly provided with an inner electrode; the upper part of the inner electrode is provided with a mechanism which limits the inner electrode to move outside the moving freedom of z-axis; the lower part of the inner electrode is a cylinder; an outer electrode is sheathed on the outer surface at the lower part of the inner electrode; the outer electrode is a cylinder which is coaxial with the cylinder at the lower part of the inner electrode; the inner diameter of the outer electrode is larger than the outer diameter of the cylinder at the lower part of the inner electrode; the other end of the outer electrode is provided with a laser interferometer used for measuring the displacement of the inner electrode. The invention simultaneously provides an ultramicro force value tracing method. The precision of the measuring device provided by the invention can meet the demand of the highest standard of the force value; the measuring device can be used for calibrating a probe force measuring sensor, a surface tension sensor and an ultramicro force detector in the manufacture technologies like a micro-electromechanical system, a biochip, etc.

The invention provides an industrial park atmospheric pollutant diffusion simulating and tracing method. The industrial park atmospheric pollutant diffusion simulating and tracing method specificallycomprises the following steps: (1) based on multi-point pollutant component analysis and concentration real-time monitoring data, analyzing atmospheric pollutant emission characteristics of an emission source, and calculating dynamic emission source intensity; (2) constructing an atmospheric pollutant diffusion model based on a Gaussian smoke plume diffusion theory and a smoke mass diffusion theory, calculating pollutant diffusion distribution characteristics of an emission source according to real-time meteorological data, and predicting the pollutant concentration of sensitive points; and (3) simulating and calculating the influence of the low-rise building within the factory boundary distance of the industrial park on airflow movement, determining a transmission path of emission sourcepollutants, and performing tracing analysis on sensitive point pollutants. The theories of Gaussian diffusion, smoke mass diffusion and computational fluid mechanics are integrated, the problem that the industrial park atmospheric pollutant emission traceability is difficult is solved, and the effective supervision of the industrial park ambient air quality is realized.

The invention discloses a tracing anti-fake market interaction integration system and method. The tracing anti-fake market interaction integration system and the tracing anti-fake market interaction integration method break through limitation on the cover degree of an existing tracing anti-fake system, achieve the purpose that one product is provided with one code, and put anti-fake into practice for every consumer. The anti-fake method that one product is provided with one code is adopted in the whole process of product delivery and sale. The method includes the steps of correspondence of identification codes to goods and correspondence of the identification codes to spraying in the process of anti-fake code generation and subsystem generation, then based on identification code scanning and network transmission, the most detailed anti-fake is achieved under the condition of little expenditure, and anti-fake and authentication effort for each product is guaranteed.

The invention discloses a comprehensive water quality intelligent supervision method based on the Internet of things (IOT) and a system thereof. On one hand, a fixed water quality monitoring station and a mobile water quality monitoring station are combined, the water quality data in a supervision area is collected in real time, the data is instantly transmitted to an IOT water quality data cloudplatform and a back-end server to carry out operation and feedback on the collected data, and a mode of Internet access is used to realize the real-time remote monitoring of water quality. On the other hand, through inputting river basic data of the supervision area, a two-dimensional hydrodynamic-water quality coupling model is used to carry out long-term water environment prediction to obtain migration, diffusion and transformation of pollutants of unexpected pollution accidents, the early warning and planning prediction of the unexpected pollution accidents are realized. At the same time, based on the two-dimensional hydrodynamic-water quality coupling model, combined with the water quality data monitored in real time, an emission source is tracked, and the tracing function of an abnormal emission source is achieved.

The invention discloses a piece of cab integrated radio communication equipment comprising a CAN interface conversion unit 1, a GSM-R voice unit connected with the CAN interface conversion unit 1, a main control unit, a satellite positioning unit, a spare control unit, a CAN interface conversion unit 2, a GSM-R data unit connected with the CAN interface conversion unit 2, a 400MHz / 450MHz communication unit, an LBJ communication unit, a record unit, a wireless broadband unit, a power supply unit, a power bus, a CAN bus 1, and a CAN bus 2. The main control unit is connected with the CAN interface conversion unit 1, the satellite positioning unit, the spare control unit, an exchange interface unit, the CAN interface conversion unit 2, the 400MHz / 450MHz communication unit, the LBJ communication unit and the record unit through the CAN bus 1 and the CAN bus 2, and is connected with the spare control unit, the exchange interface unit, the record unit and the wireless broadband unit through an LAN cable. The exchange interface unit is connected with a plurality of MMI terminals. The equipment has the advantages of high reliability, high security and high flexibility, can achieve a function of remote software and database upgrading, and can meet the requirement of a 400MHz band.

The invention discloses a wireless sensor network identifier analysis method and relates to the wireless sensor network technology. The wireless sensor network identifier analysis method is characterized by including establishing a mapping relation between sensing node identifiers and internal communication addresses of sensing nodes in the wireless sensor network under the action of address mapping of a gateway and further tracking to the sensing nodes, subjecting the sensing node identifiers to object identifier (OID) analysis and domain name service analysis and then acquiring detail application attribute information of the sensing nodes, storing the detail application attribute information into a local server database for users or a data center to inquire information and manage application. By the wireless sensor network identifier analysis method, sensing node identifier analysis on the wireless sensor network is realized.

The embodiment of the invention discloses a method, a device, an apparatus and a storage medium for recording traceability information of animal husbandry products. The method comprises the followingsteps of: establishing an intelligent contract for recording traceability information of livestock products, wherein the intelligent contract specifies recording rules for traceability information oflivestock products; generating a transaction record request containing animal husbandry product information to be recorded according to the intelligent contract; the transaction record request being sent to the block generation node in the block chain system, and the block generation node writing the animal husbandry product information associated with the transaction record request into the blockchain according to the intelligent contract. The invention can record the animal husbandry product information corresponding to each link in the production process of the animal husbandry product inthe block chain, realizes traceability of life cycle information such as breeding, slaughter, division, circulation and consumption of the large-scale animal husbandry product and related supply chaininformation, and improves traceability and credibility of the information of the animal husbandry product.

The invention provides an accuracy evaluation system for a digital electric energy meter. The system comprises an analogue standard source, an analogue standard electric energy meter, a digital electric energy meter calibrator and a control computer, wherein the control computer is connected with the analogue standard source and the digital electric energy meter calibrator, the analogue standard source is connected with the digital electric energy meter through the digital electric energy meter calibrator, and connected with the analogue standard meter simultaneously; the voltage range output by the analogue standard source is 0-480V, and the current range is 0-100A. The invention provides an accuracy evaluation system for a digital electric energy meter, which solves the problem that the present electric energy meter test device is incapable of testing or accurately testing the reliability and working stability of data reception of the digital electric energy meter.

The invention belongs to the technical field of a tracing system of agricultural products and discloses a method for tracing anti-fake markings for agricultural products. The agricultural products are coded based on a supervision model to form agricultural product tracing supervision codes; then the agricultural product tracing supervision codes are compressed and encrypted to generate a one-dimensional tracing code, the result obtained through an encryption algorithm is unique, the fact that one product with one code is achieved, individual marking and tracing can be achieved, and the anti-fake function is high. The one-dimensional tracing code and an encryption initial key of the one-dimensional tracing code are stored in a two-dimensional bar code, because the two-dimensional bar code is provided with good error correcting capacity, when the one-dimensional tracing code is damaged and cannot be recognized, the one-dimensional tracing code can be obtained from the two-dimensional bar code for the tracing, and when a network is unavailable, off-line tracing of basic information can be performed directly through the two-dimensional bar code. Simultaneously, flexible tracing for individuals and batches can be achieved through associating the one-dimensional code with the two-dimensional bar code.

The invention relates to a logistics box for the logistics field, in particular to a mobile internet-of-things management-based wisdom logistics box. The key point of the wisdom logistics box is that an internet-of-things chip, a GPS module, a Beidou module and the like embedded in the wisdom logistics box are used for collecting position information of the logistics box; a mobile internet-of-things communication module embedded in the wisdom logistics box is in charge of transmitting related logistics data of the logistics box to a remote management platform through a base station of a communication operator and obtaining data of a mobile application terminal; the remote management platform is in charge of processing the collected logistics data; and the remote management platform is connected with logistics information platforms of logistics enterprises at the same time to finish data interaction. A mobile internet-of-things communication technology, a locating technology, a sensing technology and the like are combined, so that the logistics box can realize supervision and tracing of continuous interval time points, position points and state information, real-time transmission and management of logistics information are realized, the continuity and diversity of the logistics information are improved, and the logistics management efficiency is greatly improved.