13 results about "Reading distance" patented technology

The utility model discloses a label reads distance measuring device, including measuring box, a plurality of background board, clamping assembly and label fixed platform, and label fixed platform is located at the front end of measuring box, and the locating slot for label positioning installation is set up on label fixed platform, the lateral surface of measuring box is set up and forms a plurality of card embedding groove, and each background board is made of different material, and is installed in each card embedding groove respectively, clamping assembly includes spring and clamping block, and the bottom wall of each card embedding groove is set up and has the accommodation groove, and the spring is set up in the accommodation groove, and clamping block is under the action of spring and is worn to in the card embedding groove, and the one end of clamping block is set up as inclined plane to the outside of measuring box, and the bottom of each background board near card embedding groove end wall one side is set up and forms the limit slot, and clamping block can be embedded in the limit slot of background board bottom end. The utility model has the advantages of the measuring device when carrying out label reads distance measurement, need not to hold background board, and the manpower cost is smaller, and can ensure the accuracy of measurement data more.

This utility model belongs to the field of electronic tag technology and discloses an RFID electronic tag with an anti-tamper structure. It includes a brittle base, an antenna layer on the surface of the brittle base, a tag chip connected to the antenna layer, and multiple breakpoints with a width of 0.01m on the antenna layer. A top cover layer is provided on the surface of the antenna layer, and an adhesive layer for attaching to an object is provided at the bottom of the brittle base. The bottom of the top cover layer is coated with a fine and continuous conductive ink line to form a grid-like detection circuit. In this utility model, the detection circuit is weakly coupled to the antenna in the antenna layer, forming a parasitic capacitance. This causes a significant shift in the antenna's resonant frequency, preventing the energy emitted by the reader at its operating frequency from being effectively received by the tag antenna. This results in a sharp decrease in the tag's reading distance, or even complete unreadable data, thus achieving the anti-tamper function.

The utility model relates to a radio frequency identification (RFID) distance reading testing device which comprises an RFID reader-writer, a pipeline, a plate and a label. The pipeline is formed by assembling short pipe units with shielding layers through connecting pieces, one end of the pipeline is provided with an RFID reader-writer, and the middle of the pipeline is provided with a limiting opening. The test plate is detachably mounted on the limiting part, and a multi-number label is arranged on the test plate. The device adopts a modular design and has the three advantages that the space utilization rate is high, the pipeline length is adjustable, and the device adapts to different test scenes; the closed structure effectively shields external interference and improves the test precision; and multi-label parallel testing is supported, and different label types can be quickly adapted by replacing the preset label plate. According to the device, test environment controllability, operation process standardization and equipment reuse high efficiency are realized, and the accuracy and efficiency of RFID equipment test are remarkably improved.

A packaging for a consumer product is provided with: a first visible code, the first visible code being associated with a first maximum reading distance of a camera and a first information density; and a second visible code having a second maximum distance reading distance and a second information density. The first maximum distance is less than the second maximum distance, and the first information density is greater than the second information density. A system having the packaging and a camera and a method for using the system are also related.

The utility model belongs to the technical field of pigeon foot rings, and provides a detachable pigeon foot ring, which comprises a foot ring body, an ultrahigh frequency label and a sizing material block, the end part of the foot ring body is provided with buckling parts which are matched with each other, and a groove is arranged between the buckling parts; the ultrahigh frequency tag is arranged in the groove; the rubber block is filled in the groove and limits the ultrahigh frequency label in the groove; the groove comprises a first positioning part and a second positioning part, the first positioning part is arranged at the bottom of the groove, and the second positioning part is arranged on the side wall of the groove. According to the utility model, the ultrahigh-frequency tag is used for replacing the existing low-frequency tag, so that the reading distance of the pigeon foot ring can be increased; secondly, the ultrahigh-frequency label is limited by the first positioning part, so that the label is prevented from being extruded and deformed by glue during glue filling, and reading of the label in the later period is not affected; and finally, the sizing material block is filled and cured between the second positioning parts and is matched with the second positioning parts for limiting, so that label separation caused by loosening of the sizing material block is avoided.

This utility model discloses a high-sensitivity, ultra-long-range RFID chip, comprising a PET substrate, an antenna, and a chip. The antenna, made of aluminum foil, is etched onto the PET substrate. The antenna includes a rectangular body with a hollowed-out radiating area in the middle. Below the radiating area is a feed port that isolates the antenna. A conductive adhesive layer is coated at the feed port. The chip, conductive adhesive layer, and feed port are fixedly connected by hot pressing. Symmetrical rectangular signal enhancement areas are located at both ends of the body. The signal enhancement areas are integrally formed with the body and located below the body. A long strip-shaped binding and positioning detection groove is located at the bottom of the body corresponding to the feed port. By adopting this solution, the original thick-wire bent antenna is adjusted to a planar antenna, which enhances the signal. At the same time, with the help of signal enhancement from the radiating area and the signal enhancement area, the sensitivity and reading distance of the RFID chip are improved, with a maximum reading distance of 8 to 10 meters.

The invention relates to a system for determining rotation information of an organ (1) around an axis (R) by means of a device comprising an encoder (11, 12) carried by a body (50) fixed in rotation to said organ, said encoder having a track (11a, 12a) capable of emitting a periodic signal representative of the rotational displacement of said organ; a sensor comprising a sensitive pattern (15, 16) disposed at a reading distance (d) from the track (11a, 12a) to deliver the information as a function of said displacement; said system comprising a housing (17) in which said component is rotatably mounted by means of a bearing (18) and, fixed in the housing (17), a module (19) to which the sensor is attached, the guide bearing (18) being carried by the module (19), a spacer (26) for adjusting the reading distance (d) being disposed between the body (50) and the guide bearing (18). Figure 5

The invention discloses a gate control method and device, a gate, a storage medium and a product. The method is applied to the integrated ticket checking gate machine, and the gate machine comprises a machine body with a radio frequency identification card reader and a ticket checking assembly, and a pair of gate plates; the machine body comprises a metal shell with a multipath reflection mechanism; an antenna assembly capable of transmitting carrier signals in the direction of a gate passing channel is integrated in each gate plate. The radio frequency identification card reader is used for identifying a worker certificate containing a radio frequency identification tag; the ticket checking assembly is used for checking audience bills and resident identity cards; the method comprises the following steps: acquiring a certificate identification result or a bill verification result; and controlling the pair of flashboards to open under the condition that the preset passing requirement is met according to the certificate identification result or the bill verification result. According to the invention, the reading distance of antenna signals is increased, signal crosstalk between adjacent gates is eliminated, ticket and certificate simultaneous inspection is realized, two kinds of equipment do not need to be deployed at the same time, and the personnel circulation efficiency is greatly improved.

The utility model relates to the technical field of electronic tags, in particular to a linear electronic tag for textile tracking and a preparation method of the linear electronic tag. According to the linear electronic tag, a linear metal wire is directly used as a far-field antenna to be integrated in cloth and is coupled with a near-field module; compared with the prior art, the high reading distance and performance can be achieved without improving the shape of the far-field antenna, the production efficiency is improved and the cost is reduced in the mode that the far-field antenna is cut and the coupling module is installed, the technology is more simplified, operation is easy, the method is suitable for large-scale stable production, and development of the field is greatly promoted.

The application discloses a kind of based on three-dimensional stereo winding intelligent ring NFC system, it is related to near field communication technology and wearable device technical field.The system includes: high-frequency magnetic core module is set in the inside of intelligent ring, is made using soft magnetic material of high magnetic permeability and low loss rate;Stereo winding coil module is formed by three-dimensional winding of metal wire along the bottom and side surface of high-frequency magnetic core module, and is wound on the outer periphery of high-frequency magnetic core module;The two ends of connection terminal module and stereo winding coil module are electrically connected, for coupling to NFC chip;Encapsulating body module is covered high-frequency magnetic core module and stereo winding coil module by preset encapsulating material.Through block magnetic core and bottom plus side surface three-dimensional stereo coil, magnetic field orientation and human body interference suppression are realized;Through actual measurement screening plus simulation optimization, the size of magnetic core, number of turns and encapsulating thickness are determined, improve wearing reading distance, communication success rate, while improving bandwidth tolerance.

1. The name of the design product: wireless measuring instrument (children multi-purpose). 2. The use of the design product: for reading distance measurement and reminder. 3. The design points of the design product: in shape. 4. The picture or photo that best indicates the design points: combination state figure 1. 5. Other components that need to be explained: component 1 is a movable ranging probe, component 2 is a display screen and desktop support.

The application discloses a sensor error determination method, a production system, a program product and a storage medium. The method is based on a preset calibration data set to construct a mapping relationship between a walking distance and a walking time. The calibration data set includes time parameters and distance parameters. The time parameters include timestamp data of at least two marking points on a calibration sample when the at least two marking points pass through at least one calibration station. The distance parameters include physical distance data between the at least two marking points. Based on the timestamp data and the mapping relationship, the calculated distance parameters of the calibration sample when passing through the at least one calibration station are calculated. The calculated distance parameters and read distance parameters are fitted to determine error parameters of the sensor. The read distance parameters include walking readings collected by the sensor when the at least two marking points pass through the at least one calibration station. The calibration and calibration of the sensor error can be realized without stopping and disassembling the equipment, and the calibration process is greatly simplified, and the production interruption and material loss are reduced.

The invention discloses a data error correction method and system for an RFID distance reading terminal, and relates to the technical field of data processing. The method comprises the following steps: performing radio frequency scanning on a working environment, and establishing error reference data; calibrating the original phase data of the target label to obtain a target label data matrix; sparse reconstruction optimization calculation is carried out on the target label data matrix, and a direct path component is separated from a mixed multipath signal of a target label; constructing a phase observation equation set, solving the phase observation equation set, and generating a plurality of candidate distance estimation values; and performing consistency verification fusion on the candidate distance estimation value, the distance calculated based on the direct path time delay and the distance estimated based on the RSSI, and outputting a final corrected distance estimation value. The technical problem that in the prior art, an RFID distance reading terminal is insufficient in distance reading result accuracy in a complex multi-path environment is solved, and the technical effect of improving the distance reading result accuracy is achieved.