42results about How to "Avoid missed reading" patented technology

The invention discloses an FPGA (Field Programmable Gate Array)-based enclosed space intensive object management system and method. The system comprises an RFID reader-writer, a plurality of antenna arrays, a plurality of multi-path antenna conversion devices, a processor unit, a display unit, a power supply and RFID electronic tags. The method comprises the following steps: initializing; performing reading operation by the reader-writer; opening a plurality of antenna arrays by the multi-path antenna conversion devices in sequence; reading electronic tag IDs (Identity) by the antenna arrays in a time-sharing polling mode and transmitting to the processor unit; and obtaining an actual mapping table between the electronic tag IDs and antenna serial numbers by the processor unit according to the correspondence between the antenna serial numbers and the read electronic tag IDs, comparing the mapping table with a position mapping table arranged in the processor unit, and performing corresponding processing according to a comparison result. According to the system and the method, object state monitoring of internal recognized objects can be performed without opening an enclosed space, and the technical difficulty for the RFID to perform intensive reading in an enclosed state can be solved.

The invention discloses an intelligent and automatic storage check robot and a working method thereof. The robot comprises a shell, a front universal wheel and a rear driving wheel, wherein the front universal wheel is arranged at the front end of the lower portion of the shell, and the rear driving wheel is arranged at the rear end of the lower portion of the shell; the control end of the rear driving wheel is connected with a driving plate arranged in the shell; a supporting pillar is arranged on the upper portion of the shell; the supporting pillar is connected with the output of a rotary motor arranged in the shell; the control end of the rotary motor is connected with the driving plate; an RFID card reader and a camera are arranged on the supporting pillar; a sensor is arranged on the surface of the shell; a main control panel controls all modules; a power supply module supplies power to main components. Through the robot, check on stored cargoes can be carried out regularly or irregularly according to a predetermined route, and remote control and cargo check can be realized through a wireless communication network. Moreover, in the walking process of the robot, the RFID card reader can continuously rotate by 360 degrees, so that all-around cargo check is realized, and the problem of missing reading caused by an existing fixed-angle RFID card reading mode is solved.

The invention discloses a near-field reader antenna and an antenna array for an unmanned cash register platform. Its antenna radiation structure includes antenna microstrip radiation branches and phase-shifting branches; antenna microstrip radiation branches include antenna microstrip lines set in the vertical direction and antenna microstrip lines set in the horizontal direction, forming a serpentine structure, adjusting the level of the microstrip line and The vertical length makes the current flow direction in the local vertical direction the same as the current flow direction in the local horizontal direction; phase-shifting stubs are inserted in the part of the same flow direction of the antenna microstrip line, so that the space height of the current in the same direction is the same, and the electric field in the near field area is realized. More polarization directions to avoid near-field tag misreading. The present invention can avoid the misreading of far-field tags, and also reduce the interference of other systems to the unmanned RFID system; it can read coil-type tag antennas, and can also read dipole-like tag antennas, and the antennas are more flexible sex.

The invention relates to a position identification card for downhole personnel in a coal mine and a card reading mode. A central processor is arranged in an identification card and connected with a low-frequency receiving and transmitting module, a high- frequency receiving and transmitting module and a power supply module. The card reading mode comprises the following steps: a plurality of mine substations established downhole cover the card reading area through low-frequency signals, the identification card keeps watch the commands of the mine substations through the low-frequency module; when the identification card enters the coverage area, communication with the mine substations is established and the card number is sent to the mine substations, the mine substations perform verification and storage processing and send a card disabling command to the identification card, and the identification card automatically enters the next round of watchkeeping after 30 seconds after disabling. The identification card and the mine substations realize identification through the wireless radio frequency technology, so as to ensure the completeness and the accuracy of the identification card data received by the mine substations.

The invention relates to a substation for detecting the position of a coal mine underground person, which comprises a central processing unit, wherein the central processing unit is connected with a low-frequency signal transmitting module and a low-frequency signal receiving module; the low-frequency signal transmitting module is used for covering a card reading area with a 315MHz low-frequency signal, and an identifying card listens to a command of the detecting substation every four seconds; the low-frequency signal receiving module is used for receiving the low-frequency signal which is transmitted to the detecting substation by the identifying card entering the card reading area; the central processing unit is also connected with a high-frequency signal transmitting module and a high-frequency signal receiving module; the high-frequency signal transmitting module is used for transmitting a high-frequency signal with the size of 2.4G to the identifying card entering the card reading area; the high-frequency signal receiving module is used for receiving the high-frequency signal which is transmitted to the detecting substation by the identifying card; the central processing unit is used for verifying and confirming the number of the identifying card and also is connected with a memory for storing information which is transmitted to the detecting substation by the identifying card. The detecting substation can effectively monitor the position of an underground person.

The invention provides a report page reading device used for scanning and reading report information of each barcode in a service-related report page printed with multiple barcodes according to a predetermined arrangement sequence, wherein the report information at least contains serial number, total quantity and service information. The report page reading device is characterized by comprising a picture storage part, an input display part, a scanning and reading part, a judgment control part, an analysis and acquisition part, a content obtaining part, and a service content storage part, wherein the scanning and reading part reads report information of any barcode, the analysis and acquisition part acquires the serial number, total quantity and service information through analysis, the input display part displays multiple to-be-read state identifiers according to the predetermined arrangement sequence based on the total quantity after the first read barcode is read and analyzed, the input display part displays a read state identifier according to the serial number each time the scanning and reading part reads next barcode, reading of next barcode continues when the judgment control part judges that not all the barcodes are changed in state, and service content is obtained when the judgment control part judges that all the barcodes are changed in state.

The present invention relates to a drinking water barrel intelligent management method with high accuracy and efficiency, low cost and timely grasp and statistics of various data. The method comprises the following steps that: a drinking water barrel chip is embedded in a drinking water barrel and carries a drinking water barrel identificaiton code which is only corresponding to the drinking water barrel; a card reader reads the drinking water barrel identification code of the chip; a control system generates a water station code and water station information for each water station; in the entry period of an empty drinking water barrel, an entry and exit card reader reads the chip and obtains the drinking water barrel identification code; in a drinking water production period, a production card reader reads the chip and obtains the drinking water barrel identification code; in a drinking water exit period, the entry and exit card reader reads the chip and obtains the drinking water barrel identification code; and a control system automatically counts a storage amount, a production amount, a delivery amount and the delivery amout of each water station and adds up the total delivery amount of the water station and a total delivery amount. The method has the advantages of high accuracy and efficiency and low cost.

The invention provides a radio frequency tag read-write device, system and method, and a frequency modulation antenna. The radio frequency tag read-write device comprises: a signal generation device which is controlled to generate a radio frequency tag read-write signal through one of a plurality of frequency points in the same preset working frequency band; at least one frequency modulation antenna controlled to be switched among different frequency points of the same working frequency band and used for transmitting the read-write signal and receiving a corresponding response signal; a multiplexer controlled to pass through the read-write signal and the response signal in a time division duplex mode; and a read-write module used for controlling the signal generation device to switch among the multiple frequency points in a polling manner so as to correspondingly generate read-write signals of different frequency points, synchronously controlling the multiplexer to pass through the read-write signals of the frequency points, controlling the frequency modulation antenna to switch to work at the frequency points, and analyzing and outputting the response signal to a control center. When the radio frequency tag offsets frequency, different frequency point read-write signals are transmitted in a polling mode, and the problem of offset frequency of the radio frequency tag is solved.

The invention discloses a voice message broadcasting method and device, and a storage medium, and the method comprises the steps: enabling intelligent voice equipment to communicate with a mobile terminal, enabling the intelligent voice equipment to communicate with the intelligent voice equipment, and enabling the intelligent voice equipment to execute the following steps: receiving an inductioncommand input by a user; identifying and judging the induction command; and further obtaining the unread voice message selected by the user in a display area according to a result after the inductioncommand is identified, and broadcasting the unread voice message. By combining a screen, a touch sensing area and voice interaction of the intelligent voice equipment, the experience problem caused when a user receives and checks a voice message is solved, and meanwhile, voice information can be broadcasted according to user requirements, so that the user has better voice message receiving and checking experience.

The invention relates to a method for controlling a label identification range of an ultrahigh-frequency near-field RFID system. The method for controlling the label identification range of the ultrahigh-frequency near-field RFID system comprises the following steps that a non-near-field antenna or a combination of non-near-field antennas is adopted for being connected with an ultrahigh-frequencyRFID reader as a feed source; with a half-wavelength conductor as a basic structure unit, the feed source is used for exciting the basic structure unit, and an effective identification range of the ultrahigh-frequency RFID system is formed on the periphery of the half-wavelength conductor, wherein the effective identification range is used for identifying an ultrahigh-frequency near-field RFID label. By adopting the method for controlling the label identification range of the ultrahigh-frequency near-field RFID system, the identification range of an electronic label can be precisely controlled.

The invention provides an intelligent safety door and a detection method thereof, the intelligent safety door comprises a main door, an auxiliary door and a controller which are oppositely arranged, and the controller comprises at least two frequency modulation antennas, a multiplexer and a read-write module; at least one frequency modulation antenna is arranged on the main door and the auxiliary door, and the two frequency modulation antennas are controlled to switch working frequency points between different frequency points on the same working frequency band and are used for transmitting read-write signals to the opposite door and receiving corresponding response signals; the multiplexer is controlled to pass through the read-write signal and the response signal in a time division duplex mode; and the read-write module is used for controlling the multiplexer to pass through the read-write signals of the different frequency points in different time slots in a polling manner, synchronously controlling the frequency modulation antenna to be switched to the corresponding frequency point so as to transmit the corresponding read-write signal, and analyzing the response signal into label data to be output. A plurality of frequency modulation antennas of the intelligent safety door poll and radiate read-write signals of different frequency points at different time slots.

The invention provides an analysis system based on ultrahigh frequency label equipment and a frequency characteristic analysis method thereof, and the system comprises a setting module which is used for setting the working frequency point and reading time of a reader-writer, the setting module is connected to the reader-writer, and the reader-writer reads a label at each working frequency point and generates reading data; an acquisition module used for acquiring read data of the working frequency point, wherein the acquisition module is connected to the reader-writer; and a determination module used for determining grades of quality of working frequency points and selectiving and sending best quality of working frequency points based on determination rules and reading data, a determinationmodule, wherein frequency of the multiple working frequency points is configured to working frequency with best grades and the determination module is connected with the acquisition module and the configuration module. The method solves the problem that when a plurality of RFID tags are read through a traditional method, the RFID tags are prone to being influenced by the environment, and therefore part of the tags cannot be read.

An intelligent construction site door includes a bottom plate, two fixing holes are set at the two ends of the bottom plate, each of the fixing holes is connected to a column, the column is provided with a door bolt, the door panel is connected to the column through the door bolt, and the two columns are connected by a The beam is connected; a drive motor is installed in the column, and a drive gear is provided at the front end of the power output shaft of the drive motor. The drive gear meshes with the gear on the door panel shaft, and the controller is connected to the drive motor; The tag reader and the electronic tag reader are connected to the controller; the electromagnetic coil signal transmitter includes a rectangular box with one end open, and an electromagnetic coil is arranged in the rectangular box. The advantage of the present invention is that it can intelligently open or close the gate, and can also intelligently write or read relevant information on vehicles entering and exiting the gate. The intelligent device is installed in the air to reduce the probability of equipment loss and prolong the service life of the equipment. At the same time, The gate can also be broken down and reused.