307results about "Memory record carrier reading problems" patented technology

The invention discloses an RFID electronic tag anti-collision processing system, which relates to the technical field of radio frequency identification and comprises an encryption module, a signal processing module and a real-time processing module. The encryption module is used for realizing label identity verification based on a hash function; the signal processing module adopts a mixed anti-collision mechanism combining a time slot ALOHA protocol and a binary tree search algorithm; the real-time processing module comprises a multi-channel parallel processing unit, and each channel is configured with an independent local frequency. According to the RFID electronic tag anti-collision system, the encryption module, the signal processing module and the real-time processing module are combined, the problem of multi-tag collision of the RFID technology in a high-density and dynamic application scene is effectively solved, the encryption module adopts a hash function and an elliptic curve encryption algorithm, safe and efficient verification of tag identities is achieved, and the security and reliability of the RFID electronic tag are improved. The innovative hybrid anti-collision mechanism of the signal processing module is the combination of a slot ALOHA protocol and a binary tree search algorithm.

The invention relates to an intelligent archival repository RFID archive processing system, and relates to the technical field of archive data processing, and the system comprises a state generation module, a semantic clustering module, a personnel label clustering module, a frequency statistics module and an archiving configuration module. Wherein the state generation module is used for acquiring RFID tag position information and generating a file taking state; the semantic clustering module 12 is used for performing semantic clustering based on the archive content identification to form first-level classification; the personnel label clustering module 13 is used for re-clustering the primary classification result according to the archive personnel identifier to form secondary classification; the frequency statistics module 14 is used for counting the taking frequency of each file in the secondary classification result; and the archiving configuration module 15 is used for determining an optimal archiving position according to the characteristics and the access frequency of the archives to be stored. The archives are archived according to the multi-dimensional analysis of the archive content, the archive personnel and the archive taking frequency, the archive archiving reasonability is improved, and then the archive retrieval and management efficiency is improved.

The invention relates to the field of intelligent breeding, aims to solve the problems that traditional cattle breeding is inaccurate in monitoring and early warning, extensive in feeding control and insufficient in environment control linkage, and provides a fine management method and system. The method comprises the steps of system initialization and individual binding, multi-dimensional data acquisition, physiological state accurate early warning, dynamic adaptive feeding, environment linkage regulation and control and data statistics optimization. The system correspondingly comprises an individual identification and data acquisition module, an improved physiological state monitoring and early warning module, a dynamic adaptive feeding control module, an environment regulation and control module, a data storage and analysis module and a system operation and maintenance module. Multi-dimensional data are collected through the intelligent neck ring, an individual adaptation algorithm is adopted for early warning of the health state, an exclusive feeding scheme is generated, and the breeding environment is regulated and controlled in a linkage mode. The method and the system improve the health rate and the breeding efficiency of cattle herds, reduce feed waste, and are suitable for large-scale cattle breeding fine management scenes.

The invention relates to the technical field of intelligent manufacturing, in particular to an extrusion processing workshop intelligent operation and maintenance method and system based on digital twinning, and the method comprises the following steps: importing a production plan through a digital twinning system, generating a processing task list, and synchronizing a virtual model; the specification of the billet is obtained by using RFID, and a tracking code is generated and a task is bound. And matching process parameters, regulating and controlling the temperature of the heating machine, collecting temperature data and generating a compensation instruction. Based on the compensation instruction, planning a manipulator path, monitoring a pose correction deviation, and feeding the billet into an extruder; calling a pressure curve, collecting a pressure value, and generating an adjusting instruction by combining material simulation to realize constant strain rate extrusion; according to the pressure feedback, the wire collecting tension is adjusted, the wire diameter fluctuation is monitored, and a speed compensation instruction is generated; generating a wire unloading path according to the specification of the wire coil, and controlling the robot to place the wire coil and update a task state; according to the invention, efficient, accurate and intelligent extrusion processing operation and maintenance are realized.

Techniques for echo cancellation in an RFID reader include incorporating an auxiliary error power amplifier (auxiliary PA) into the RFID reader, and dynamically adjusting a bias setting of the auxiliary PA based on a power level of a reflection of a signal transmitted by the RFID reader (“echo signal”) as measured at the RFID reader. When the measured echo signal power level is high, techniques herein set the auxiliary PA bias setting to a higher level to allow the auxiliary PA to account for the stronger echo signal. Inversely, when the measured echo signal power is low, techniques herein set the auxiliary PA bias setting to a lower level to reduce power consumption while the enabling the RFID reader to cancel echo phenomena and reliably detect signal responses from RFID tags in an environment.

The invention provides a distributed production area material management method and system based on radio frequency identification, and relates to the technical field of material management, and the method comprises the steps: determining a plurality of material types according to a material management demand; performing frequency spectrum scanning and signal interference analysis on the target area; introducing a predetermined distribution analysis strategy to carry out frequency band distribution; based on the M working frequency bands, deploying M RFID reader-writers; according to the material distribution sequence, in combination with a label distribution layering mechanism, performing label distribution on the sub-regions; and establishing a target material management scheme based on the first material management scheme. According to the invention, the technical problem that the accuracy of radio frequency identification is reduced and the material management efficiency is further influenced due to interference among devices in a distributed production area in the prior art can be solved, signal interference is avoided through frequency spectrum scanning and dynamic frequency band distribution, the material is subjected to label distribution, and the material management efficiency is improved. And the material management efficiency is improved.

The invention discloses a synchronous demodulation method for a passive RFID tag, and the method comprises the following steps: carrying out the DC removal and smooth filtering operation of an input signal, and outputting a preprocessing signal; according to the signal peak value distribution, roughly estimating a backscattering link frequency deviation condition of a label signal in the preprocessed signal, and calculating and outputting a roughly estimated oversampling rate; calculating a correlation coefficient between the preprocessed signal and a standard lead code under different oversampling rates, and preliminarily judging a possible position of the lead code in the tag signal; and comparing calculation results of the correlation coefficients under different oversampling rates, judging and outputting an oversampling rate precise estimation value, and completing synchronous detection of the lead code. According to the fine estimation value of the oversampling rate, a corresponding local 0 / 1 bit sequence is used, the preprocessed signal is judged to be 0 / 1 bit output through correlation operation, and demodulation of the input signal is completed. According to the invention, through a mode of first rough estimation and then fine estimation, consumption of hardware computing resources is reduced, and reduction of communication performance is avoided.

The invention discloses secret-related carrier safety management equipment, and the equipment comprises an intelligent carrier management subsystem which carries out the unique identification of a secret-related carrier through the RFID technology, places the secret-related carrier in an intelligent control cabinet, locates the positions of each piece of equipment and each secret-related RFID tag, and achieves the full-process automatic management of the input and output of the secret-related carrier; the intelligent management and control cabinet is provided with an RFID channel door and supports identity verification through biological identification ID, and access operation is carried out after verification is passed; a background management subsystem; an RFID access door; the PDA is held by a hand; the invention relates to a desktop type RFID card issuing device. The secret-related carriers are uniquely identified through the RFID technology and placed in the intelligent management and control cabinet, the system can automatically identify and position the position of each secret-related carrier, and quick and accurate searching, storing and taking operation is achieved. Meanwhile, the system supports a self-service borrowing and returning function, the user can complete the borrowing and returning process of the secret-related carrier only through simple operation, and the management efficiency is greatly improved.

The invention discloses a logistics supply chain dynamic management method based on the Internet of Things, and relates to the technical field of logistics management, and the method comprises the following steps: constructing a radio frequency interference space fingerprint database, and recognizing an interference region and generating a radio frequency interference distribution map through collecting the emission frequencies, signal intensities and spatial distributions of a plurality of radio frequency identification read-write devices. According to the method, interference hotspots are accurately identified by constructing a radio frequency interference space fingerprint database and a distribution map, and signal conflicts and response failures are avoided in combination with dynamic tag gain and time sequence management. And the communication stability is monitored in real time, local adjustment and self-checking are implemented, and rapid abnormal response and self-repair are realized. Equipment deployment and transmitting power are optimized, interference blind areas are dynamically eliminated, identification stability and data accuracy are improved, logistics errors and risks are reduced, transparency and response capability of a supply chain are enhanced, intelligent and reliable logistics management is promoted, and anti-interference capability and overall operation efficiency of the system are improved.

The invention discloses a medical drug intelligent monitoring and management method based on an HIS system, and relates to the technical field of drug management, and the method comprises the steps: carrying out the fluctuation analysis of a storage environment of drugs, marking all drugs with the storage time exceeding a time threshold value in K sub-generation sets as affected drugs, outputting management emergency indexes for all affected drugs, and carrying out the management of the affected drugs. And after the emergency threshold value influencing the medicine is adjusted in combination with the position information, the medicine is distributed to the K sub-generation sets again based on the comparison result of the management emergency index and the emergency threshold value and the position information influencing the medicine, and the management priority of the K sub-generation sets is generated. According to the method, after the drug storage environment is subjected to volatility analysis, the drugs are clustered for multiple times, the drugs are divided into a plurality of sets according to the clustering result, and the supervision strength of the drugs in each set is dynamically adjusted, so that the effectiveness of the drugs is guaranteed, and drug resource waste is avoided.

The invention relates to the technical field of logistics information management, and particularly discloses a corrugated board logistics information tracking method and system based on RFID, logistics state data of corrugated boards are obtained through RFID and preprocessed, a knowledge graph including entities such as corrugated cartons, storage nodes and transportation tools and association relationships is constructed, the nodes are converted into low-dimensional vectors, and the low-dimensional vectors are stored in a database; key factors and causal effect values which cause anomalies in entity association are mined by utilizing a causal forest algorithm, an abnormal propagation path is reasoned through a graph neural network, a root cause report is generated, targeted decisions such as sorting adjustment, equipment maintenance and path re-planning are generated accordingly, and a graph and a model are updated in real time to adapt to dynamic changes. According to the method, multi-dimensional data, entity relation modeling, causal effect analysis, propagation path reasoning and dynamic optimization design are integrated, the problems of unclear explanation of abnormal root causes and lack of pertinence in decision making in traditional corrugated board logistics tracking are effectively solved, and the accuracy of logistics information tracking and decision making effectiveness are improved.

The invention discloses an RFID tag pairing method and device and an application method, and relates to the technical field of RFID tag communication, and the RFID tag pairing method comprises the steps: transmitting a pairing signal to a corresponding slave tag through each master tag; the slave tag is a tag physically connected with the master tag; each master tag is physically connected with one slave tag; traversing to obtain master label information and slave label information, and pairing the master label and the slave label which return the label information in the same time slice; and the master tag and the corresponding slave tag realize communication in the same communication time slice in a time sequence collaboration mode. According to the invention, the reader-writer communicates with the master tag and the slave tag in one communication time slice, so that the communication efficiency is greatly improved, and the time complexity in a tag pairing process is effectively reduced.

An autonomous appliance configured to operate in a facility. The autonomous appliance includes a chassis including a motor configured to move the autonomous appliance within the facility and a radio frequency identification (RFID) tag reader configured to communicate with infrastructure RFID tags attached to fixed infrastructure and with product RFID tags attached to product containers. The RFID tag reader emits an RF signal that provides ambient RF power to the infrastructure RFID tags and the product RFID tags. The autonomous appliance includes at least one actuator configured to manipulate the product containers and a controller coupled to the RFID tag reader and configured to read information from the infrastructure RFID tags and the product RFID tags. The controller adapts the behavior of the autonomous appliance relative to a first product container based on the read information.

The invention relates to the technical field of logistics equipment, in particular to a new-generation intelligent inventory checking station inventory checking method based on machine vision, and the method comprises the following steps: carrying out the morphological operation of a first azimuth picture set of each container, inputting the second orientation picture set of each cargo box after the second preprocessing and the morphological operation into a cargo box identification identification model, and calculating the whole stack prediction volume V1 of the cargos at the inventory taking station based on the identified cargo categories, the number of the cargo boxes loaded by the different categories of cargos and the accommodating volumes of the cargo boxes corresponding to the different categories of cargos; whether the whole stack of goods on the tray is in a complete shape or not is judged, and if the whole stack of goods on the tray is in the complete shape, the volume V2 of the whole stack of goods at the inventory taking station is calculated based on the pictures of the whole stack of goods stacked on the tray in different directions and the pixel proportion of the pictures of the whole stack of goods; on the basis of a comparison result between the volume V2 of the whole stack of the goods and the predicted volume V1 of the whole stack of the goods at the inventory taking station, the identified goods categories, the number of the containers loaded with the different categories of the goods and the accommodating volumes of the containers corresponding to the different categories of the goods, the actual categories and the actual number of the goods at the inventory taking station are determined; based on a comparison result of the determined actual category and the actual number of the goods at the inventory taking station and the actual category and the actual number of the goods stacked on the tray obtained after the RFID is read, the actual category and the actual number of the goods at the inventory taking station are rechecked for the first time; therefore, whether the goods stacked on the trays at the inventory taking station are missing or not can be judged.

To provide an asset management system capable of managing assets with high accuracy. [Solution] An asset management system that manages assets attached with tags that can identify individual information, comprising a terminal unit held by a terminal holder, the terminal unit including a tag communication unit that communicates with the tag to read the individual information, and a location information acquisition unit that acquires location information, wherein the location information acquisition unit starts acquiring the location information as information about the asset to which the tag is attached when a first condition is met, and stops acquiring the location information when a second condition is met, the first condition being at least one of a condition that communication between the tag communication unit and the tag is established and a condition that the level of the wireless communication is below a first threshold, and the second condition being at least one of a condition that the communication is not established and a condition that the level of the wireless communication is above a second threshold.

Systems and techniques are provided for wireless communications. A process can include transmitting an energizing signal using an energizer device included in a vehicle and associated with a display of the vehicle, wherein the energizing signal is configured to interrogate one or more backscatter tags within the vehicle. A first backscatter signal can be received from a first backscatter tag of the one or more backscatter tags, the first backscatter signal based on the energizing signal and indicative of information corresponding to a driver of the vehicle. A driver status corresponding to the driver of the vehicle can be determined based on the first backscatter signal. A display message indicative of the driver status can be transmitted to the display of the vehicle for output.

The invention discloses a financial management system and method based on a chip tag, and relates to the technical field of Internet of Things and financial management, and the management system comprises a chip tag module, an induction reading module, a data processing module, an intelligent decision module, and an abnormity early warning module. The technical key points are as follows: through an RFID chip tag with a built-in EPCglobal standard protocol, the system can collect data such as raw material cost and processing parameters in real time in each link of down jacket production, and the data are structurally stored in a JSON format; the signal noise reduction and feature extraction technology of the edge calculation module is combined, the delay of data from collection to cloud processing is greatly shortened, and compared with a traditional manual input mode, the problem of data lag is fundamentally solved; for example, in a raw material warehousing link, the label can automatically associate a quality inspection report number and a purchase price, so that a financial system can obtain accurate cost data in real time, and accounting delay in a traditional mode is avoided.

The invention discloses a sample monitoring method, system and equipment based on an RFID technology and a medium, and relates to the technical field of RFID, sample signal data is preprocessed, the preprocessed RFID signal data can provide accurate and reliable original data for sample monitoring, and support is provided for subsequent path loss prediction and positioning prediction; by establishing a path loss prediction model, the loss of a signal in a transmission process can be accurately predicted, and necessary data support is provided for accurate positioning of a sample; the positioning network model established by using the Bi-LSTM technology can be combined with RFID signal data and path loss data to carry out real-time and accurate positioning prediction on the sample, and the efficiency and accuracy of sample monitoring are improved.

There is provided a controller comprising means for configuring an activator device for activating each tag pair of a tag group in a phase scan sequence; configuring the reader device for receiving a signal from each tag pair in the tag group in a phase scan sequence; receiving information from the reader device, the information indicating a power level of a combined signal received by the reader device for each of the tag pairs in the phase scan sequence; and determining an order of the tags in the tag group based on the information indicating the power level.

The invention provides a file checking method and device for an RFID intelligent file cabinet and electronic equipment, and relates to the field of data processing. The method comprises the following steps: acquiring historical inventory data of a target file in the RFID intelligent file cabinet; determining the file moving frequency, the label feedback intensity and the checking duration of the target file according to the historical checking data; based on the file moving frequency, the label feedback intensity and the checking duration, determining a target area corresponding to the position of the target file in the RFID intelligent file cabinet, the target area including an active area and a static area; according to the target area, planning to obtain an inventory strategy of the RFID intelligent file cabinet; and checking the target files in the RFID intelligent file cabinet according to the checking strategy. By implementing the technical scheme provided by the invention, the file checking efficiency of the RFID intelligent file cabinet can be improved.

A system (10) for cost-effective and accurate reading of RFID tags (12) is provided. The system includes an RFID reader (14) and one or more booster modules (18) connected to the RFID reader (14). Each booster module (18) has its own power supply, allowing for an amplification of a portion of the RFID signal (16) that is output by the RFID reader (14). Thereby, the total power output of the system (10) can be increased, and a read range and read accuracy can be improved due to additional antennas provided in the booster modules (18). In addition, it also becomes possible to reduce the power output by the RFID reader (14) in order to increase the read accuracy of the same.

A receiver / transmitter device for logistics tracking configured to monitor or detect a shipment unit includes: a cellular transmitter for transmission of wireless signals via a cellular network; an ultra-wide band (UWB) transmitter for transmission of radio signals over a short-range network; a radio frequency identification (RFID) reader configured to detect a passive RFID tag associated with the shipment unit; and a processor in communication with the cellular transmitter, UWB transmitter, and RFID reader. The processor is configured to selectively cause the cellular transmitter or the UWB transmitter to wirelessly transmit information detected by the RFID reader to a remote computing device or computer server. The device also includes a housing configured to be mounted to a transport platform that encloses the cellular transmitter, UWB transmitter, RFID reader, and processor.

Communication system (100A) which includes the following features: a reader (110A); characterized by a reader application device (130A) with a reader application; wherein the reader (110A) is configured to operate under the control of the reader application to enable data to be transferred via the reader (110A) between the reader application device (130A) and a user device (120A); where a level of security of the data transmission is determined at least partially on the reader application device (130A).

The invention relates to a method for operating several RFID readers, to each of which several antennas are connected. The RFID readers (R1-R3) are time-synchronised via a communication network (NET). Antennas (A11-A14, A21-A24, A31-A34) allocated to different RFID readers or the same RFID reader are determined, the detection ranges of said antennas at least partially overlapping. On a graphical user interface of a control and monitoring unit (CFG) connected to the RFID readers via the communication network, the determined antennas with the at least partially overlapping detection ranges are flagged as being in conflict with one another. For the use of each antenna on the respective RFID reader for selecting or writing into RFID transponders, at least one cyclically repeating time window (T1-T4), which is allocated to the respective antenna, is reserved in each case. An allocation of the antennas which are in conflict with one another for the same time window is blocked.

Ultra-high frequency RFID vehicle fixed-point parking method with automatic calibration of transmission power. The main control module adjusts the transmission power to the maximum power value for reading work. If no electronic tag is detected within the set time threshold range, the power calibration work is stopped. If the RFID reader can read the content of the electronic tag, the transmission power is gradually reduced according to the set fixed power interval value. After each reduction of the transmission power, the electronic tag is read. When the tag information cannot be read after reducing the transmission power, the corresponding transmission power is recorded, and this is the calibrated power value at this time. After the transmission power is calibrated, every time the user parks the vehicle, the RFID reading and writing module reads the tag with the calibrated power value. If the tag can be read, it means that the corresponding vehicle has been parked in the designated position. If the tag cannot be read, it means that the vehicle has not been parked in the designated position. The present invention provides an efficient and simple method for automatic calibration of transmission power, improving the usability and accuracy of the product.

A transmission mode of an interrogation from an RFID reader is the basis for determining a responsive communication. Transmission modes matching a pre-defined pattern are the basis for returning expected information, such as an identification code. When the received interrogations do not match a transmission mode, information not helpful in identification is returned, such as, for example, a null code, an incorrect code, or an error code. An RFID tag includes a circuit for analyzing frequencies of the received interrogation, the analysis revealing the transmission mode, which may include frequency value or range, duration of transmission, and number of frequencies received during the interrogation.

The application discloses a kind of forming filter rod box traceability device and method, wherein method includes: starting reproduction, pressing reset button, when manual filling is completed, start disc unloading machine, second proximity switch is at low potential, generates disc unloading machine material signal, the disc unloading machine material signal triggers a track double stacker dispatching system distribution tray, and the information of filter rod transmitter group, tray, physical location and forming machine group is obtained according to the task list of track double stacker dispatching system by control system;The controller reads out the information of filter rod box about to enter disc unloading machine by second electronic tag reader, obtains the position of filter rod box in tray;The controller obtains the number of filter rod box in the filter rod box that is emitted in tray and the number of filter rod in the filter rod box that is emitted by photoelectric switch.The technical content disclosed by the application can quickly locate the specific position of defective filter rod box in which tray and forming machine.

A method includes: obtaining operational data corresponding to a mobile computing device; comparing the operational data to a criterion, and determining, based on the comparison, whether to initiate a radio frequency (RF) tag read operation. In response to a determination to initiate the RF tag read operation, the method further includes obtaining at least one identifier from an RF tag, and sending the at least one identifier to a computing device.

The payment server for user transaction approval is configured to: receive two or more rule sets for user transaction approval from the two or more trusted entities; receive a transaction approval request, a token, payment terminal data, and additional data obtained by the payment terminal from a payment terminal; receive a balance limit decision from at least one payment account; and generate a transaction approval decision by cross-referencing the two or more rule sets with the mobile device data, the payment terminal data, the additional data, and the balance limit decision.

The invention provides a continuous tag identification method and system based on COTS RFID, and relates to the technical field of RFID. According to the method, a label identity management system is established by pre-distributing static identifiers to a label user storage area, and accurate screening and grouping of labels are realized by matching a standard selection instruction with specific mask parameters; an optimized filtering mechanism is adopted to distinguish known tags from unknown tags, and the tag state is confirmed and updated step by step through a staged polling strategy; wherein a static identification pre-storage mechanism obviously reduces performance requirements on label hardware, a selective polling method based on mask matching improves processing efficiency, a multi-stage fingerprint filtering structure ensures identification accuracy, and the design completely following a C1G2 protocol specification enables a system to be directly deployed in an existing RFID infrastructure.