65results about How to "Long reading distance" patented technology

The invention discloses an electrical locomotive auto-passing neutral section control system. In the control system, a signal generator used for transmitting passing neutral section anticipating signal is arranged on a vehicle mainframe of an electrical locomotive, wherein the vehicle mainframe comprises a signal receiver used for receiving the passing neutral section anticipating signal, a memory unit used for storing the required time of locomotive neutral section operation, a clock, a speed sensor used for providing the current speed of the electrical locomotive for a controller, the controller used for outputting passing neutral section control signal and restoring the control signal and a contact network connection controller used for controlling a contact network electrical connection device. The timing that the invention executes the auto-passing neutral section operation is accurate and the reliability of the auto-passing neutral section control is high.

An improved electronics assembly for integration with a tire structure includes an acoustic wave device such as a SAW sensor connected as a feedback element in an active amplifier and further coupled to an antenna element, thus forming an active transmitter configuration. Such a circuit configuration provides for the ability to actively transmit a combination of information from integrated tire electronics to a remote receiver location. The combination of information corresponds to the physical parameters sensed by the acoustic wave device as well as digital data superimposed on the RF signal emitted by the acoustic wave device by selectively switching the amplifier on and off. Optional integrated power sources configure the electronics assembly for operation as an actively transmitting device.

The invention discloses an information system for a warehouse. The system is characterized by comprising an interaction interface, an integration engine, a service module and a GIS assembly, wherein the warehouse information system takes a service receipt input according to an external input system as an object and enables data in the service receipt to specifically correspond to an actual material object stored in the warehouse according to material information stored in a database so as to realize data conversion from receipt-based data to an entity object; and multiple different users perform inputting through the interaction interface to control the service module to perform processing so that respective service flows are formed, and the multiple users can execute conversion of different services on the same material. According to the invention, material management positions are clear, material data management is refined, the material storage cost is reduced, and the utilization rate of the warehouse is improved. As long as the material is required to be produced, cooperative work with a supplier, third-party logistics, an enterprise itself and a client can be realized, a data information island is broken, and various parties share information together.

The invention relates to the application field of the radio frequency identification technology and provides a monitoring system for transport of valuables based on radio frequency identification (RFID). An RFID reader is installed on a container, RFID tags are attached to all valuables, the RFID reader sends read codes and container location information to a background server and checks the read codes and the container location information with the data inside a database, when the exam of the information of valuables is passed, the container location information is read to the database, and when the exam of the information of valuables fails, the system alarms. The invention also provides a monitoring method of the system. The data exam is conducted through statistical process control (SPC) data sequences, and valuables are monitored. By the aid of the system and the method, for logistics corporations, the cost is saved, the efficiency is improved and the hazard is reduced.

The invention discloses a stock raising electronic supervision system, which comprises a stock raising subsystem and a stock raising supervision platform subsystem, wherein the stock raising subsystem comprises a stock raising information acquisition unit and a stock raising database, and the stock raising electronic supervision platform subsystem comprises a supervision platform database and a PC terminal. The stock raising subsystem and the stock raising supervision platform subsystem are connected with each other through the stock raising database and the supervision platform database, the stock raising information acquisition unit is connected with the stock raising database, and a user has access to the supervision platform database through a web browser in the PC terminal. The invention enables the government to supervise stock raising enterprises, live pig butcheries, meat wholesale enterprises and retail stalls, and also enables the public to enquiry the source of pork, the process control and the meat prices through the platform.

A range-finding system for a portable image reader is described. The range-finding system uses a distance-measuring device, such as an ultrasonic transducer, to determine the distance between the reader and a target, such as a label containing a bar code. An operator receives a visual indication which will assist in positioning the image reader within the optimal reading range of the target. The visual indicator may include three LED's of different color or with different blinking rates which will indicate to the operator that the reader is short, long or in the optimal reading range of the reader. In one embodiment, the reader would automatically cycle through an image acquisition or decode sequence when range finder detects that the target is within the optimal reading range of the reader. In another embodiment, the visual indicator will prompt the operator to manually trigger the image acquisition or decode sequence once the reader is positioned within the optimal reading range.

The invention discloses a speed measurement system based on an ultrahigh frequency radio frequency identification label and a measurement method. The measurement system comprises a radio frequency identification label, a first antenna, a second antenna, a radio frequency identification reader and a data center. The first antenna and the second antenna are connected to the radio frequency identification reader respectively. The radio frequency identification reader receives signals emitted by the radio frequency identification label through the first antenna and the second antenna respectively and sends to the data center respectively. The method in the invention is based on an ultrahigh frequency RFID technology. A Lagrange interpolation method is used to expand a data source. Through a maximum value time difference method of Gaussian fitting between partitions and kalman filter combination and a correlation time difference method of a Phat processor and SCOT weighting, data read by a reader is processed so that accurate measurement of a walking speed is realized. By using the system and the method, an error can be effectively reduced and precision is increased, and a large calculated amount is not needed. The ultrahigh frequency RFID label possesses advantages that the size is small; a price is low; a reading distance is long and so on. The system and the method can be made into a sensor which can be worn on an elder so as to carry out accurate measurement of the walking speed.

A range-finding system for a portable image reader is described. The range-finding system uses a distance-measuring device, such as an ultrasonic transducer, to determine the distance between the reader and a target, such as a label containing a bar code. An operator receives a visual indication which will assist in positioning the image reader within the optimal reading range of the target. The visual indicator may include three LED's of different color or with different blinking rates which will indicate to the operator that the reader is short, long or in the optimal reading range of the reader. In one embodiment, the reader would automatically cycle through an image acquisition or decode sequence when range finder detects that the target is within the optimal reading range of the reader. In another embodiment, the visual indicator will prompt the operator to manually trigger the image acquisition or decode sequence once the reader is positioned within the optimal reading range.

The invention discloses a radio frequency tag data coding system and a radio frequency tag data coding method for vehicle identification. The system comprises a computer, an encryption / decryption and verification code calculation device, an RFID reading-writing device and an RFID tag. The computer divides an EPC region of the RFID tag into a data part and a verification code part and codes a license plate number; the encryption / decryption and verification code calculation device encrypts the coded license plate number data and calculates the verification code of the license plate number data; the computer concatenates the license plate number data and the verification code; the RFID reading-writing device writes the concatenation data into the EPC region; the encryption / decryption and verification code calculation device carries out decryption to obtain decryption data and calculates the verification code; and the computer compares the decrypted verification code with the verification code part of the EPC region and judges whether data in the EPC region is tampered. The defect that data encryption and verification code calculation cannot be carried out due to the fact that the license plate number is stored in the EPC region of the RFID tag in the prior art is overcome.

The invention discloses an intelligent management system based on wireless sensor network and Bluetooth radio frequency recognition technology. The system is composed of positioning labels, a Bluetooth gateway, a switch, a server and a PC computer side; the Bluetooth gateway is installed in a monitored region, the Bluetooth positioning label is hung on the personnel or an object, the positioning label continuously sends a signal, the Bluetooth gateway continuously search the signal sent by the positioning label; the server determines a location of the positioning label on a map according to the distance obtained by converting the searched positioning label signal intensity and between the positioning label and the Bluetooth gateway and, and according to a geometric relation between the Bluetooth gateway and the positioning label, and displays the location at the PC computer side. The management problem of the staff of the factory is solved, and the simple personnel region positioning is realized, the convenience is brought for the management personnel, at the same time, numerous management problems of the factor are solved, the workers of the factory can be strictly managed, the burden of the management personnel is reduced, the accident is reduced, the security of the worker is guaranteed, the factory economy loss caused by accident is avoided, the reputation of the factory isimproved, and greater benefit is brought for the factory.

The present invention discloses a plane gap label. The label includes an antenna, a chip and a substrate. The substrate is disposed in a rectangle shape and receives the antenna and the chip, wherein the antenna matches the chip. The antenna includes a rectangle radiant surface and a pair of T-shaped gaps. The pair of T-shaped gaps is located at the center of the substrate. The rectangle radiant surface includes a rectangle radiant surface with the pair of T-shaped gaps dug out. The pair of T-shaped gaps is disposed in a mirror image manner. The chip is located between the pair of T-shaped gaps. The plane gap label is applied to the surface of an object with a high dielectric constant, long in reading distance, wide in bandwidth, and good in applicability.

The invention discloses a gun unsheathing detection system. The system comprises a gun management platform, a gunman monitoring terminal, a detection control box, a first electronic label arranged ona gun, and a first read-write antenna and a metal proximity switch, wherein at least one of the first read-write antenna and the metal proximity switch is embedded into an inner wall of a holster; thefirst read-write antenna is used for reading gun information stored by the first electronic label, the first read-write ante and the metal proximity switch are electrically connected with the detection control box; the detection control box wirelessly communicates and connects with the gun management platform and the gunman monitoring terminal. The invention further discloses an unsheathing detection method for detecting whether the gun is unsheathed from the holster, wherein the gun management platform issues a first RFID beacon to compare with the currently read second RFID beacon, if the first RFID beacon is inconsistent with the second RFID beacon and the second RFID beacon is unread in the specified time, an alarm record is generated and submitted. The system disclosed by the invention can detect the unsheathing condition of the gun in real time and remind the gunman in time, thereby effectively preventing the gun from losing and guaranteeing the safety of the gunman.

The invention discloses a passive ultrahigh frequency RFID (Radio Frequency Identification Devices) tour guiding system and an operation method. The tour guidance and the management of scenic spots or large exhibition halls can be realized by adopting the ultrahigh frequency RFID technology. The tour guiding system comprises a handset control system and an electronic tag, wherein the electronic tag is a passive electronic tag; when identifying the existence of the electronic tag, the handset control system starts to read ID number data of the electronic tag, and transmits the ID number data to an MCU (Microprogrammed Control Unit); the MCU transmits the received ID number data to an audio decoding unit; and the audio decoding unit starts to find an audio file corresponding to the ID number data in an SD (Secure Digital Memory) card, decodes the audio file, and play an analog stereo signal to a stereo output device. The tour guiding system is convenient to use, is low in cost, is convenient to maintain, and has far reading distance and quick identification speed.

A radio frequency identification RFID anti-metal microstrip tag antenna disclosed by the invention is high in gain, low in cost and long in reading distance. According to the technical scheme, a radiation patch, a dielectric substrate and a metal floor form a resonant cavity, and the radiation patch covers a rectangular groove and is fixedly provided with a strip-shaped mounting seam of an RFID tag chip electrically connected with the radiation patch; a first strip-shaped gap is formed above a U-shaped groove, and a second strip-shaped gap and a third strip-shaped gap are formed in the left side and the right side of the U-shaped groove; and a protrusion is arranged at the bottom of the rectangular groove, one end of the strip-shaped mounting seam penetrates through the protrusion and is connected with the rectangular groove, the other end of the strip-shaped mounting seam penetrates through the bottom of the radiation patch, an edge field formed by gaps at the two ends of the U-shapedgroove generates radiation, and the metal floor, the radiation patch, a feeder line and a grounding line form an RFID anti-metal microstrip tag antenna. Based on the structure of the antenna and a slotting design, the performance of the tag is ensured under the condition that the thickness of the tag is reduced.

The invention claims a multifunctional circulating packaging box which is provided with a RFID identification card and is capable of overcoming such disadvantages of RF cards in the prior art that the price is high, the identification rate is low and wide use in the storage physical distribution management is not possible. The multifunctional circulating packaging box adopts the technical proposal that: the circulating packaging box comprises a top cover, a front panel, a back panel, two side plate composite members and a base board, wherein, the two side plate composite members comprise at least one intermediate plate and side plates symmetrically arranged on two sides of the intermediate plate. The circulating packaging box is characterized in that the front panel is inserted with a passive tag, or / and the side plates are provided with at least one of active tag or semi-passive tag. The application of the circulating packaging box in the storage physical distribution management on one hand saves the operation cost for manufacturers, importers and vendors, and on the other hand improves the efficiency of goods counting and the accuracy of the identification, thus greatly improving the intelligent management level of physical distribution, storage and relative trades.

The invention relates to a double-frequency detecting channel type antitheft system which is provided with a host computer, a detection door as well as an alarm and a display which are controlled by the host computer, wherein the detection door is internally provided with an antenna; the host computer is internally provided with a synchronous modulator-demodulator for modulating low-frequency electromagnetic wave and ultrahigh-frequency electromagnetic wave into a composite signal and a synchronous digital signal processing device, wherein the synchronous modulator-demodulator is controlled by the synchronous digital signal processing device. The double-frequency detecting channel type antitheft system provided by the invention combines the advantages of an ultrahigh-frequency band and a low-frequency band when detecting by adopting ultrahigh frequency and low frequency and has strong capacity of resisting disturbance, and when goods are hidden in clothes and packsacks, an alarm system can still accurately alarm; the data transmission speed is high, and the detecting efficiency is increased; the reading distance is longer and is generally up to 4-6m; whether lending or putting in storage is marked or not is judged, and compared with the traditional magnetizing and demagnetizing, the judgment error is reduced, the judgment is more precise, and information error can not appear.

The invention discloses a novel leaky cable for an Internet of things application. The novel leaky cable comprises an inner conductor, a dielectric layer, an outer conductor, an insulating protective layer which are orderly arranged from an inner layer to an outer layer. The outer conductor is provided with continuous slots along an axial direction, and two sides of the continuous slots are provided with periodic slots. The continuous slots are wavy bend slots or straight line type slots, and the periodic slots at two sides of the continuous slots are mutually staggered. The periodic slots are single triangular slots or combined slots of multiple triangular slots, and the periodic slots are L-shaped or U-shaped slots. The novel leaky cable is suitable for an Internet of things RFID sensing application and has high coupling loss. As an ultra-high frequency (UHF) networking antenna, the high coupling loss leaky coaxial cable has the advantages that large radiation energy can be provided, and thus a label is remotely activated to achieve the purpose of reading.

A transponder unit which can be integrated in a transport unit or a card or the like. The transponder unit includes, in addition to an encapsulated transponder of an integrated circuit, an aerial winding having a resistance RA and a capacitor parallel thereto and having a capacitance CA. A closed coupling circuit of secondary winding is coupled with the aerial winding by a mutual inductance MSA and a substantially larger primary winding in series with the secondary winding and having fewer turns, for example only one turn. To achieve almost optimum energy transfer between a reading device and the transponder and to increase the permissible reading distance, the mutual inductance MSA is adjusted to comply with the relationship MSA=√{square root over ( )}[RA / ω) (LP+LS+2MPS)], where ω2=1 / (LACA) is true for the receiving frequency ω of the transponder and Lp and LS are the inductances of the primary winding and of the secondary winding and MPS is their mutual inductance.

The invention relates to the field of radio frequency identification (RFID) and provides a plane broadband passive electronic tag. The tag comprises an antenna, a chip and a substrate, wherein the substrate is rectangular and is used for containing the antenna and the chip; the antenna is matched with the chip; the antenna comprises a rectangular radiation surface and a short-circuit ring; the short-circuit ring is located at the bottom of the substrate; the rectangular radiation surface comprises a rectangular radiation surface obtained by removing a rectangular shape of the short-circuit ring; the chip is located at the place, close to the edge of the substrate, on the short-circuit ring. The plane broadband passive electronic tag which is applied to the surface of an object with a high dielectric constant has a farther reading distance and a wide bandwidth, and has strong applicability; meanwhile, the chip is located at the place close to the edge of the substrate so that information concluding codes, characters and patterns and the like can be conveniently printed on the back surface of the tag and the chip is prevented from being crushed in a printing process; the tag can be conveniently applied to various fields.

The invention provides a veterinary drug production pointer type instrument image identification method based on RFID and deep learning. The veterinary drug production pointer type instrument image identification method comprises the following steps: S1, collecting an instrument image; S2, extracting a dial area; S3, preprocessing the image; S4, performing pointer positioning fitting; S5, performing instrument reading judgment; and S6, performing instrument early warning judgment. According to the identification method provided by the invention, a large amount of electronic data can be stored;the problem of health injury caused by the fact that workers are poisonous, harmful, radiated and easily polluted in a veterinary drug production workshop is solved; the system is simple in structureand convenient to use, personal safety of workers is guaranteed to the maximum extent, the system further has the advantages of being fast in reading, high in accuracy, high in adaptability and intelligent in management, an abnormal environment can be warned in time, veterinary drug production efficiency is greatly improved, and safety of a veterinary drug storage environment and a veterinary drug production environment is guaranteed.

The embodiment of the invention provides a UHF RFID reader antenna and a switching method. The antenna comprises the content as follows: 2N same antenna elements are uniformly distributed at the top side of a printed circuit board; N-equal part power dividers and phase extension lines are arranged at the top side and the bottom side of the printed circuit board respectively; radio frequency switches are also arranged; N antenna elements at the top side and the N-equal part power divider and phase extension lines at the top side form a first group of N-arm feed networks which are the same in amplitude and have a phase difference of 360 degrees / N; the other N antenna elements and the N-equal part power divider and phase extension lines at the bottom side form a second group of N-arm feed networks which are the same in amplitude and have the phase difference of 360 degrees / N; and the radio frequency switches control and switch the antenna into a mode of the first group of N-arm feed networks or a mode of the second group of N-arm feed networks. According to the UHF RFID reader antenna, the characteristic of a long identification distance of UHF RFID is maintained, and meanwhile, the identification coverage area of a near-field area is increased under the condition of not increasing the cost and the complexity of a system.

The invention discloses an electronic scale based on NFC fast payment. The electronic scale based on NFC fast payment comprises a micro-control chip, a display module, a weighing sensor, a chip of a radio frequency chip circuit, a matching circuit, a crystal oscillation circuit and a power unit. The micro-control chip is in data interaction with the chip of the radio frequency chip circuit through an SPI, the RX_IN1 and RX_IN2 of the micro-control chip serve as the input signal end of the chip of the radio frequency chip circuit, and the TX_OUT of the micro-control chip serves as the output signal end of the chip of the radio frequency chip circuit. The matching circuit is an RC circuit. A pin ANT1 and a pin ANT2 serve as external antenna interfaces. The crystal oscillation circuit is connected with the radio frequency chip circuit. The micro-control chip is connected with the display module and the weighing sensor through an I2C bus. The power unit is used for providing voltage for the micro-control chip and the chip of the radio frequency chip circuit. As an NFC payment unit is integrated inside the electronic scale, the electronic scale can achieve fast payment in the near field environment.

The invention discloses an electronic label, and aims at providing a remote and anti-metal ultrahigh frequency electronic label based on a PCB technology. The electronic label is low in an environment requirement, long in a reading distance and high in an anti-metal interference. The electronic label comprises a PCB base material and a chip. The lower part of the PCB base material is provided with a double faced adhesive tape which is used for fixing. The chip is fixed on the upper part of the PCB base material via a connecting material. A chip protective film is positioned above the chip, and the chip is packaged in the inner part of the chip protective film via the chip protective film. An RFID electronic label adopting the PCB technology is extremely high in sensitivity and anti-metal interference capacity, and excellent in anti-metal property and extraordinarily high in performance-price ratio. A high strength packaging manner is adopted so that the electronic label can be applied to a severe working condition, and a special design is adopted so that the label can be read in a longer distance.

The present invention discloses a metal-resistant flat tag. The metal-resistant flat tag is characterized in that the tag comprises an antenna, a chip and a substrate; the substrate accommodates the antenna and the chip; the antenna comprises a radiation surface, a first slot and a second slot, and a first slot group and a second slot group; the antenna is located at the center of the substrate; the first slot and the second slot, and the first slot group and the second slot group are respectively mirror-symmetrical with respect to the center of the substrate; the first slot and the second slot are arranged in the width direction of the radiating surface and the first slot group and the second slot group are arranged in the length direction of the radiating surface; and the first slot andthe second slot, and the first slot group and the second slot group are obtained by removing the radiation surface material from the rectangular radiation surface. The tag disclosed by the present invention can be applied to the metal-resistant ceramics tag with a long reading distance on the glass surface, and in the presence of metal, the tag has acceptable sensitivity and strong applicability.

The invention discloses an RFID tag provided with an arc-shaped opening, comprising a waterproof base sheet, an RFID chip and an RFID antenna connected to the RFID chip signal; the RFID chip and the RFID antenna are packaged In the encapsulation body; the reading distance is long, and the reading distance can reach 11-13m after testing. The reading distance of ordinary RFID tag antennas is less than 10m. Various antennas have good performance, small standing wave ratio, low return loss, high gain and omnidirectionality; they have high performance when used in ultra-high frequency (860-960MHz), especially around 925MHz.

The invention discloses an ultra-high frequency RFID label antenna for wirelessly measuring a dielectric constant. The ultra-high frequency RFID label antenna comprises a dielectric substrate, a radiation unit and a matching unit, wherein the radiation unit comprises a radio frequency chip, a first fan-shaped metal layer and a second fan-shaped metal layer, the first fan-shaped metal layer and thesecond fan-shaped metal layer both are attached onto an upper surface of the dielectric substrate, a left-right symmetric surface of the dielectric substrate is used as a reference surface, a centralline of the dielectric substrate is arranged on the reference surface, the first fan-shaped metal layer is arranged at a left side of the reference surface, the second fan-shaped metal layer is arranged at right side of the reference surface, the matching unit comprises a first arc metal layer and a second arc metal layer, the first arc metal layer and the second arc metal layer are attached ontoa lower end surface of the dielectric substrate, a circle center of the first arc metal layer is arranged on a straight line perpendicular to the dielectric substrate and passing through a center ofthe dielectric substrate, and a circle center of the second arc metal layer is arranged on a straight line perpendicular to the dielectric substrate and passing through the center of the dielectric substrate. The ultra-high frequency RFID label antenna has the advantages of relatively small size and relatively long reading distance.

The invention relates to an RFID (Radio Frequency Identification) read-write device and particularly relates to a mobile phone card with an RFID reader chip, wherein the mobile phone card combines with the RFID read-write device and a mobile communication device. The mobile phone card with the RFID reader chip comprises an SIM (Subscriber Identity Module) card on which an SIM card microprocessor chip, an ultrahigh frequency RFID reader chip and an antenna are integrated, wherein the ultrahigh frequency RFID reader chip is connected with the SIM microprocessor chip, and the ultrahigh frequency RFID reader chip comprises the RFID reader chip, a power amplifier, a coupler and an active crystal oscillator; the RFID reader chip is connected with the coupler through the power amplifier, and the coupler is further connected with the antenna; and the RFID reader chip is further connected with the active crystal oscillator. By utilizing the mobile phone card with the RFID reader chip on a mobile phone, the normal mobile phone has a function of reading and writing an RFID electronic label; and the mobile phone with the mobile phone card has the advantages of longer reading distance and higher data transmission speed while reading and writing the label.