CN117556852B - Device and method for testing communication distance of RFID reader-writer - Google Patents

Device and method for testing communication distance of RFID reader-writer Download PDF

Info

Publication number
CN117556852B
CN117556852B CN202410029317.1A CN202410029317A CN117556852B CN 117556852 B CN117556852 B CN 117556852B CN 202410029317 A CN202410029317 A CN 202410029317A CN 117556852 B CN117556852 B CN 117556852B
Authority
CN
China
Prior art keywords
assembly
wall
rfid
feeding
storage
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Active
Application number
CN202410029317.1A
Other languages
Chinese (zh)
Other versions
CN117556852A (en
Inventor
魏飞
陈鑫
许迪
陈娟
翟术然
吕伟嘉
王净
赵紫敬
曹国瑞
滕永兴
孙源祥
李琳
刘凯
刘雪
张兆杰
张春晖
戴志波
于骜
李勇
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Beijing Suresource Technology Co ltd
State Grid Tianjin Electric Power Co Ltd
Marketing Service Center of State Grid Tianjin Electric Power Co Ltd
Original Assignee
Beijing Suresource Technology Co ltd
State Grid Tianjin Electric Power Co Ltd
Marketing Service Center of State Grid Tianjin Electric Power Co Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Beijing Suresource Technology Co ltd, State Grid Tianjin Electric Power Co Ltd, Marketing Service Center of State Grid Tianjin Electric Power Co Ltd filed Critical Beijing Suresource Technology Co ltd
Priority to CN202410029317.1A priority Critical patent/CN117556852B/en
Publication of CN117556852A publication Critical patent/CN117556852A/en
Application granted granted Critical
Publication of CN117556852B publication Critical patent/CN117556852B/en
Active legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Classifications

    • GPHYSICS
    • G06COMPUTING; CALCULATING OR COUNTING
    • G06KGRAPHICAL DATA READING; PRESENTATION OF DATA; RECORD CARRIERS; HANDLING RECORD CARRIERS
    • G06K17/00Methods or arrangements for effecting co-operative working between equipments covered by two or more of main groups G06K1/00 - G06K15/00, e.g. automatic card files incorporating conveying and reading operations
    • G06K17/0032Apparatus for automatic testing and analysing marked record carriers, used for examinations of the multiple choice answer type
    • GPHYSICS
    • G06COMPUTING; CALCULATING OR COUNTING
    • G06KGRAPHICAL DATA READING; PRESENTATION OF DATA; RECORD CARRIERS; HANDLING RECORD CARRIERS
    • G06K7/00Methods or arrangements for sensing record carriers, e.g. for reading patterns
    • G06K7/0095Testing the sensing arrangement, e.g. testing if a magnetic card reader, bar code reader, RFID interrogator or smart card reader functions properly
    • GPHYSICS
    • G06COMPUTING; CALCULATING OR COUNTING
    • G06KGRAPHICAL DATA READING; PRESENTATION OF DATA; RECORD CARRIERS; HANDLING RECORD CARRIERS
    • G06K7/00Methods or arrangements for sensing record carriers, e.g. for reading patterns
    • G06K7/10Methods or arrangements for sensing record carriers, e.g. for reading patterns by electromagnetic radiation, e.g. optical sensing; by corpuscular radiation
    • G06K7/10009Methods or arrangements for sensing record carriers, e.g. for reading patterns by electromagnetic radiation, e.g. optical sensing; by corpuscular radiation sensing by radiation using wavelengths larger than 0.1 mm, e.g. radio-waves or microwaves
    • G06K7/10366Methods or arrangements for sensing record carriers, e.g. for reading patterns by electromagnetic radiation, e.g. optical sensing; by corpuscular radiation sensing by radiation using wavelengths larger than 0.1 mm, e.g. radio-waves or microwaves the interrogation device being adapted for miscellaneous applications
    • G06K7/10465Methods or arrangements for sensing record carriers, e.g. for reading patterns by electromagnetic radiation, e.g. optical sensing; by corpuscular radiation sensing by radiation using wavelengths larger than 0.1 mm, e.g. radio-waves or microwaves the interrogation device being adapted for miscellaneous applications the interrogation device being capable of self-diagnosis, e.g. in addition to or as part of the actual interrogation process
    • YGENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02DCLIMATE CHANGE MITIGATION TECHNOLOGIES IN INFORMATION AND COMMUNICATION TECHNOLOGIES [ICT], I.E. INFORMATION AND COMMUNICATION TECHNOLOGIES AIMING AT THE REDUCTION OF THEIR OWN ENERGY USE
    • Y02D30/00Reducing energy consumption in communication networks
    • Y02D30/70Reducing energy consumption in communication networks in wireless communication networks

Abstract

The invention belongs to the technical field of measuring electric variables, and particularly relates to a testing device and a testing method of a communication distance of an RFID reader-writer, wherein the testing device comprises a bearing component, a storage component, an operation component and a material supplementing component; the bottom of bearing assembly and the top interconnect of storage subassembly drive the operation subassembly whereabouts through the storage subassembly, make the operation subassembly be the level contact with the top of bearing assembly, and utilize the operation subassembly to drive the rotation of RFID card, put in the storage subassembly with the RFID card after the test, stack a plurality of RFID cards of storage with its inside through the feed supplement subassembly, in the feed supplement to the operation subassembly in proper order, be used for supplementing the position of the RFID card after the test, promote the operation subassembly once more through the storage subassembly, make the RFID card on the operation subassembly carry out the self-adaptation again with the distance of reader-writer and adjust, through the autogiration of operation subassembly, carry out the communication distance test with the reader-writer with a plurality of RFID cards of storage in proper order, the efficiency of multiunit test has been improved.

Description

Device and method for testing communication distance of RFID reader-writer
Technical Field
The invention belongs to the technical field of measuring electric variables, and particularly relates to a testing device and a testing method for a communication distance of an RFID reader-writer.
Background
The communication distance of the RFID reader-writer refers to the maximum reliable communication distance between the RFID reader-writer and the RFID card in the antenna magnetic field of the reader-writer. When the RFID card is positioned at the position of the maximum reliable communication distance, the obtained induced electromotive force is at a critical point of the optimal electromotive force, and the communication is abnormal and the failure rate is increased when the RFID card moves upwards a little.
By searching, in the prior art, chinese patent application No. 201320806751. X application date: 2013-12-10, a communication distance testing device of an RFID reader-writer is disclosed, which comprises a main control board with a controller, a reader-writer arranged on the main control board and a power supply, wherein a lifting bracket is arranged at the side edge of the main control board, the lifting bracket is provided with a driving device and a transmission device for driving a lifting platform, the driving device is controlled to open and close by the controller of the main control board, a long slot hole is formed in the lifting bracket, the transmission device in the long slot hole is provided with the lifting platform, the lifting platform is positioned above the reader-writer, and an RFID card is arranged on the lifting platform. The application can intuitively embody the communication performance of the RFID reader-writer.
The device still has the following drawbacks: although the communication performance of the RFID reader-writer can be intuitively embodied, the reader-writer in the prior art needs to be matched with a plurality of groups of RFID cards for use, so that the efficiency is low when the plurality of groups of RFID cards are tested, and the degree of automation is not ideal enough.
Disclosure of Invention
Aiming at the problems, the invention provides a testing device for the communication distance of an RFID reader-writer, which comprises a bearing assembly, a storage assembly, an operation assembly and a material supplementing assembly; the bottom of bearing the weight of the subassembly and the top interconnect of storage subassembly, just bear the weight of subassembly and the storage subassembly is open structure, the operation subassembly level laminating is connected at the top of bearing the weight of the subassembly, just the bottom of operation subassembly is connected with the storage subassembly transmission, feed supplement subassembly fixed connection is at one side outer wall of storage subassembly, feed supplement subassembly and operation subassembly intercommunication and cooperation are used each other, the top of bearing the weight of the subassembly and be close to one side of feed supplement subassembly be provided with the reader-writer, the outer wall edge of operation subassembly is provided with a plurality of sets of RFID cards, and a plurality of sets of RFID cards use the axis of operation subassembly to be annular array setting as the center.
Further, the bearing assembly comprises an assembly mechanism and a shielding mechanism; the assembly mechanism is of an open annular structure, the shielding mechanism is fixedly connected to the central axis center of the assembly mechanism, and one side, far away from the central axis center of the assembly mechanism, of the end part of the shielding mechanism is movably attached to the inner wall of the assembly mechanism.
Further, the assembly mechanism includes a first cross plate; the top fixedly connected with isolating ring of first diaphragm, just the edge of isolating ring coincides with the edge of first diaphragm, the top one side fixedly connected with isolating plate of first diaphragm, first feed opening and second feed opening have been seted up to the surface of first diaphragm, first feed opening and second feed opening are the symmetry setting with the axis of isolating plate as the center, just first feed opening and second feed opening are fan-shaped structure, the top opposite side fixedly connected with assembly piece of first diaphragm, just the one end and the isolating plate fixed connection of assembly piece, the assembly groove has been seted up at one side of top and keeping away from the isolating plate of assembly piece, just the inner wall and the reader-writer movable joint of assembly groove, the storage tank has been seted up to the bottom of assembly piece and one side that is close to the isolating plate, first through-hole has still been seted up to the surface of assembly piece, just first through-hole communicates each other with the storage tank, the second through-hole has still been seted up to the surface of first diaphragm, second through-hole and first through-hole coincides with the axis and the second through-hole communicates each other with the storage tank.
Further, the shielding mechanism comprises a driving part, a first shielding plate and a second shielding plate; the outer wall of drive portion and one side transmission that is close to the top are connected with first shield plate, the outer wall of drive portion and one side transmission that is close to the bottom are connected with the second shield plate, first shield plate and second shield plate are fan-shaped structure, just the equal movable fit of circular arc end of first shield plate and second shield plate is connected at the inner wall of isolating ring, first shield plate and first feed opening activity laminating and cooperation use, second shield plate and second feed opening activity laminating and cooperation use.
Further, the driving part comprises a driving column; the central hole has been seted up to the axis center department of actuating post, just the one end and the second through-hole intercommunication of central hole, the other end and the mutual intercommunication of first through-hole of central hole, actuating post fixed connection is at the inner wall of accomodating the groove, the outer wall fixedly connected with of actuating post two sets of outer ring gears, two sets of the outer ring gear is the symmetry setting with the axis of actuating post as the center, two sets of the outside of outer ring gear has all cup jointed the snap ring, two sets of the equal fixedly connected with first motor of inner wall of snap ring, two sets of the output of first motor is all transmitted and is connected with the helical gear, just the helical gear all is connected with the outer ring gear meshing, a set of the tip fixed connection of snap ring and first shield, another set of the tip fixed connection of snap ring and second shield.
Further, the storage assembly comprises a storage shell; the utility model discloses a storage shell, including storage shell, first electric putter, second electric putter, separator plate, first electric putter's output, second electric putter's output runs through first through-hole, second through-hole and centre bore, two sets of second electric putter are still installed in the top of separator plate in the bottom of first diaphragm is installed in the embedding of separator plate, just the axis of separator plate and the axis coincidence of separator plate are installed in the top embedding of separator plate to the bottom fixedly connected with separator plate of first diaphragm of top opening part and first diaphragm of storage shell, just the inner wall fixedly connected with separator plate of separator plate.
Further, the operation assembly comprises a positioning mechanism, a linkage mechanism and an adjusting mechanism; the top of positioning mechanism is connected with the link gear in a movable fit way, the top of the adjusting mechanism is fixedly connected with the bottom of the positioning mechanism, and the output end of the adjusting mechanism is connected with the central axis center of the link gear in a transmission way.
Further, the positioning mechanism comprises a positioning disc; the positioning disc is of an open circular structure, a third through hole is formed in the center of the central axis of the positioning disc, the inner wall of the third through hole is fixedly connected to one end of the adjusting mechanism, and a test groove is formed in the outer wall of one side of the positioning disc;
the linkage mechanism comprises a linkage disc; the linkage disc is movably attached to the top of the positioning disc, a plurality of groups of first slots are formed in the outer wall of the linkage disc, two groups of second slots are formed in the inner walls of the first slots, the inner walls of the first slots and the second slots are movably attached to the RFID card, a third electric push rod is embedded and mounted in the inner walls of the first slots, and the output ends of the third electric push rod are movably in abutting connection with one side of the RFID card;
the adjusting mechanism comprises an adjusting cylinder shell; the end of the adjusting cylinder shell is fixedly connected with the inner wall of the third through hole, one side, close to the opening, of the adjusting cylinder shell is fixedly connected with a fourth electric push rod, the output end of the fourth electric push rod is in transmission connection with a second motor, the output end of the second motor is in transmission connection with the center of the central axis of the bottom of the linkage disc, one side, far away from the opening, of the end of the adjusting cylinder shell is in transmission connection with the output end of the first electric push rod, and the second motor is movably attached to the inner wall of the adjusting cylinder shell.
Further, the feed assembly includes a feed housing; the automatic feeding device is characterized in that a feeding platform is connected to one side of the inner wall of the feeding shell in a sliding fit manner, one side of the feeding platform, far away from the inner wall of the feeding shell, is connected with a screw rod in a threaded manner, the output end of the screw rod is connected with the output end of a third motor in a transmission manner, one side, far away from the output end, of the third motor is fixedly connected to the bottom end of the inner wall of the feeding shell, a plurality of groups of RFID cards to be assembled are stacked on the top of the feeding shell and one side, close to the inner wall of the feeding shell, a feeding port is formed in the outer wall of the feeding shell, close to one side, of the RFID cards to be assembled, the size of the feeding port is larger than that of the RFID cards to be assembled, one side, far away from the feeding port, of the inner wall of the feeding shell is fixedly connected with a fifth electric push rod, and the RFID cards to be assembled and the feeding port are arranged at the same level.
A testing method of a testing device for communication distance of an RFID reader-writer comprises the following steps,
the bearing assembly is used for installing a reader-writer to be tested, and the storage assembly is used for pushing the operation assembly, so that the distance between the RFID card on the operation assembly and the reader-writer is adaptively adjusted;
the operation assembly is driven to fall through the storage assembly, so that the operation assembly horizontally contacts with the top of the bearing assembly, the operation assembly is utilized to drive the RFID card to rotate, and the tested RFID card is put into the storage assembly;
sequentially feeding a plurality of groups of RFID cards stacked and stored in the feeding assembly into the operation assembly for supplementing the positions of the tested RFID cards;
pushing the operation assembly again through the storage assembly, so that the distance between the RFID card on the operation assembly and the reader-writer is adjusted in a self-adaptive mode again;
and through automatic rotation of the operation assembly, the stored multiple groups of RFID cards are sequentially subjected to communication distance test with the reader-writer.
The beneficial effects of the invention are as follows:
1. the RFID reader-writer is used for installing a reader-writer to be tested through the bearing component, the storage component is used for pushing the operation component, the distance between the RFID card on the operation component and the reader-writer is adaptively adjusted, the operation component is driven to fall through the storage component, the operation component is horizontally contacted with the top of the bearing component, the operation component is used for driving the RFID card to rotate, the tested RFID card is put into the storage component, a plurality of groups of RFID cards are stacked and stored inside the RFID card through the feeding component, the feeding component is sequentially fed into the operation component, the positions of the tested RFID cards are used for supplementing, the operation component is pushed again through the storage component, the distance between the RFID card on the operation component and the reader-writer is adaptively adjusted again, and the stored RFID cards are sequentially tested with the reader-writer in communication distance through automatic rotation of the operation component, so that the efficiency of a plurality of groups of tests is improved.
2. The continuous screw thread rotation of the third motor and the feeding platform enables a plurality of groups of RFID cards to be assembled to move upwards synchronously, the output end of the fifth electric push rod is utilized to push one group of RFID cards to be assembled, the RFID cards to be assembled penetrate through the feeding opening and are movably clamped on the inner walls of the first slot and the second slot, and the automatic efficiency of batch testing is improved through the effect of rapid feeding.
3. The first motor in the two groups of linkage rings drives the bevel gears to rotate, so that the bevel gears are meshed with the outer gear ring to be connected in the process, the linkage rings drive the first shielding plate to rotate by taking the central axis of the driving column as the center, the rotating first shielding plate is movably attached to the first blanking opening and the second blanking opening, and the anti-interference performance of the test is improved.
3. The output end of the fourth electric push rod drives the second motor to move with the linkage disc, the distance between the linkage disc and the positioning disc is adjusted, the RFID cards on the inner walls of the first slot and the second slot can be connected in the positioning disc in a closing mode, the function of shielding the untested RFID cards is achieved, and the anti-interference performance of testing is improved.
Additional features and advantages of the invention will be set forth in the description which follows, and in part will be obvious from the description, or may be learned by practice of the invention. The objectives and other advantages of the invention may be realized and attained by the structure particularly pointed out in the written description and claims hereof as well as the appended drawings.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions of the prior art, the following description will briefly explain the drawings used in the embodiments or the description of the prior art, and it is obvious that the drawings in the following description are some embodiments of the present invention, and other drawings can be obtained according to these drawings without inventive effort for a person skilled in the art.
FIG. 1 is a schematic diagram showing the structure of a test device according to an embodiment of the present invention;
FIG. 2 is a schematic view of a load bearing assembly according to an embodiment of the present invention;
FIG. 3 is a schematic view of a load bearing assembly according to an embodiment of the present invention;
FIG. 4 is a schematic view showing the structure of an assembling mechanism according to an embodiment of the present invention;
FIG. 5 is a schematic view showing the structure of a shielding mechanism according to an embodiment of the present invention;
FIG. 6 is a cross-sectional view showing the structure of a driving part according to an embodiment of the present invention;
FIG. 7 shows a schematic structural view of a storage assembly according to an embodiment of the present invention;
FIG. 8 shows a schematic structural view of an operative assembly of an embodiment of the present invention;
FIG. 9 is a schematic diagram showing the structure of a positioning mechanism according to an embodiment of the present invention;
FIG. 10 is a schematic diagram of a linkage mechanism according to an embodiment of the present invention;
FIG. 11 is a schematic view showing the structure of an adjusting mechanism according to an embodiment of the present invention;
fig. 12 shows a cross-sectional view of the structure of a feed assembly according to an embodiment of the invention.
In the figure: 1. a carrier assembly; 11. an assembly mechanism; 111. a first cross plate; 112. a spacer ring; 113. a first blanking port; 114. a second feed opening; 115. a partition plate; 116. a mounting block; 117. an assembly groove; 118. a storage groove; 119. a first through hole; 1110. a second through hole; 12. a shielding mechanism; 121. a driving section; 1211. a drive column; 1212. a central bore; 1213. an outer ring gear; 1214. a linkage ring; 1215. a first motor; 1216. bevel gear; 122. a first shielding plate; 123. a second shielding plate; 2. a storage assembly; 21. a storage shell; 22. a separation plate; 23. a first electric push rod; 24. a second electric push rod; 3. an operating assembly; 31. a positioning mechanism; 311. a positioning plate; 312. a third through hole; 313. a test slot; 32. a linkage mechanism; 321. a linkage disc; 322. a first slot; 323. a second slot; 324. a third electric push rod; 33. an adjusting mechanism; 331. an adjustment cylinder housing; 332. a fourth electric push rod; 333. a second motor; 4. a feed supplement assembly; 41. a feed supplement shell; 42. a material supplementing platform; 43. a screw rod; 44. a third motor; 45. an RFID card to be assembled; 46. a feed supplement port; 47. a fifth electric push rod; 5. a reader-writer; 6. an RFID card.
Detailed Description
For the purpose of making the objects, technical solutions and advantages of the embodiments of the present invention more apparent, the technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention, and it is apparent that the described embodiments are some embodiments of the present invention, but not all embodiments of the present invention. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention.
The embodiment of the invention provides a testing device for the communication distance of an RFID reader-writer, which comprises a bearing assembly 1, a storage assembly 2, an operation assembly 3 and a material supplementing assembly 4; as illustrated by way of example in fig. 1.
The bottom of carrying the subassembly 1 and the top interconnect of storage subassembly 2, just carry the subassembly 1 and the storage subassembly 2 are open structure, the horizontal laminating of operation subassembly 3 is connected at the top of carrying the subassembly 1, just the bottom of operation subassembly 3 is connected with the transmission of storage subassembly 2, feed supplement subassembly 4 fixed connection is at one side outer wall of storage subassembly 2, feed supplement subassembly 4 and operation subassembly 3 intercommunication each other and cooperation use, the top of carrying the subassembly 1 and be close to one side of feed supplement subassembly 4 are provided with reader-writer 5, the outer wall edge of operation subassembly 3 is provided with a plurality of sets of RFID cards 6, and a plurality of sets of RFID cards 6 are the annular array setting with the axis of operation subassembly 3 as the center.
Specifically, the carrying component 1 is used for installing a reader-writer 5 to be tested, the storage component 2 is utilized to push the operation component 3, so that the distance between the RFID card 6 on the operation component 3 and the reader-writer 5 is adaptively adjusted, and the function of testing the communication distance between the RFID reader-writer is used;
the storage component 2 drives the operation component 3 to fall, so that the operation component 3 horizontally contacts with the top of the bearing component 1, and the operation component 3 is utilized to drive the RFID card 6 to rotate, so that the tested RFID card 6 is put into the storage component 2;
the material supplementing assembly 4 sequentially supplements a plurality of groups of RFID cards 6 stacked and stored in the material supplementing assembly 4 into the operation assembly 3 for supplementing the positions of the tested RFID cards 6, and pushes the operation assembly 3 again by utilizing the material storing assembly 2, so that the distance between the RFID cards 6 on the operation assembly 3 and the reader-writer 5 is subjected to self-adaptive adjustment again, and the function of circularly testing the communication distance between the RFID reader-writer is utilized;
the automatic rotation of the operation assembly 3 can also test the communication distance between the stored sets of RFID cards 6 and the reader-writer 5 in sequence.
The bearing assembly 1 comprises a fitting mechanism 11 and a shielding mechanism 12; as illustrated by way of example in fig. 2.
The assembly mechanism 11 is of an open annular structure, the shielding mechanism 12 is fixedly connected to the central axis center of the assembly mechanism 11, and one side, far away from the central axis center of the assembly mechanism 11, of the end part of the shielding mechanism 12 is movably attached to the inner wall of the assembly mechanism 11.
The assembly mechanism 11 includes a first cross plate 111; as illustrated by way of example in fig. 3 and 4.
The top fixedly connected with isolating ring 112 of first diaphragm 111, just isolating ring 112's edge and the edge coincidence of first diaphragm 111, the top one side fixedly connected with isolating plate 115 of first diaphragm 111, first feed opening 113 and second feed opening 114 have been seted up to the surface of first diaphragm 111, first feed opening 113 and second feed opening 114 are the symmetry setting about the axis of isolating plate 115, just first feed opening 113 and second feed opening 114 are fan-shaped structure, the top opposite side fixedly connected with assembly piece 116 of first diaphragm 111, just the one end and the isolating plate 115 fixed connection of assembly piece 116, the assembly groove 117 has been seted up to one side that just keeps away from the top of assembly piece 116, just the inner wall and the movable joint of reader-writer 5 of assembly groove 117, the bottom of assembly piece 116 just is close to one side of isolating plate 115 and is seted up accomodate groove 118, first through-hole 119 has still been seted up to the surface of assembly piece 116, just first through-hole 1110 and the second through-hole 118 and the mutual coincidence of first through-hole 118 and first through-hole 118 have been accomodate to the second through-hole 118.
Specifically, the first discharging opening 113 and the second discharging opening 114 formed on the surface of the first transverse plate 111 are used for respectively accommodating two types of RFID cards 6 that are qualified or unqualified in test, and the first discharging opening 113 and the second discharging opening 114 are isolated by the isolating plate 115, so that the RFID cards 6 are classified in the process of throwing;
the assembly block 116 utilizes an assembly groove 117 formed in the top to enable the reader-writer 5 to perform the function of movable assembly, and utilizes a storage groove 118 at the bottom to enable the isolation ring 112 to be connected in the storage groove 118 in a sliding fit mode, and meanwhile, the assembly block can perform the closing function after feeding classification on the first blanking port 113 and the second blanking port 114 and is used for preventing the RFID card 6 after feeding classification from interfering the reader-writer 5.
The shielding mechanism 12 includes a driving portion 121, a first shielding plate 122, and a second shielding plate 123; as illustrated by way of example in fig. 5.
The outer wall of drive portion 121 and be close to one side transmission at top are connected with first shield plate 122, the outer wall of drive portion 121 and be close to one side transmission of bottom are connected with second shield plate 123, first shield plate 122 and second shield plate 123 are fan-shaped structure, just the equal movable fit of circular arc end of first shield plate 122 and second shield plate 123 is connected at the inner wall of isolating ring 112, first shield plate 122 and first feed opening 113 movable fit and cooperation use, second shield plate 123 and second feed opening 114 movable fit and cooperation use.
The driving part 121 includes a driving post 1211; as illustrated by way of example in fig. 6.
The center hole 1212 is formed in the center of the central axis of the driving post 1211, one end of the center hole 1212 is mutually communicated with the second through hole 1110, the other end of the center hole 1212 is mutually communicated with the first through hole 119, the driving post 1211 is fixedly connected to the inner wall of the storage slot 118, two groups of outer ring gears 1213 are fixedly connected to the outer wall of the driving post 1211, the two groups of outer ring gears 1213 are symmetrically arranged with the central axis of the driving post 1211 as the center, the outer parts of the two groups of outer ring gears 1213 are respectively sleeved with a linkage ring 1214, the inner walls of the two groups of linkage rings 1214 are respectively fixedly connected with a first motor 1215, the output ends of the two groups of first motors 1215 are respectively connected with a bevel gear 1216 in a transmission manner, the bevel gears 1216 are respectively meshed with the outer ring gears 1213, one group of linkage rings 1214 is fixedly connected to the end of the first shielding plate 122, and the other group of linkage rings 1214 are fixedly connected to the end of the second shielding plate 123.
Specifically, the first motors 1215 in the two sets of linkage rings 1214 drive the bevel gears 1216 to rotate, so that in the process of meshing and connecting the bevel gears 1216 with the outer gear ring 1213, the linkage rings 1214 drive the first shielding plate 122 to rotate by taking the central axis of the driving column 1211 as the center, so that the rotating first shielding plate 122 is movably attached to the first discharging opening 113 and the second discharging opening 114.
The storage assembly 2 comprises a storage shell 21; as illustrated by way of example in fig. 7.
The storage casing 21 is of an open cylindrical structure, the top opening of the storage casing 21 is fixedly connected with the bottom of the first transverse plate 111, the inner wall of the storage casing 21 is fixedly connected with a separation plate 22, the central axis of the separation plate 22 coincides with the central axis of the storage casing 21, a first electric push rod 23 is embedded and mounted at the top of the separation plate 22, the central axis of the first electric push rod 23 coincides with the central axis of the separation plate 22, the output end of the first electric push rod 23 penetrates through a first through hole 119, a second through hole 1110 and a central hole 1212, two groups of second electric push rods 24 are further embedded and mounted at the top of the separation plate 22, and the output ends of the two groups of second electric push rods 24 are all in transmission connection with the bottom of the first transverse plate 111.
Specifically, the storage housing 21 is configured to receive the tested RFID card 6, and isolate the received RFID card 6 by using the separation plate 22;
the output end of the first electric push rod 23 penetrates through the first through hole 119, the second through hole 1110 and the central hole 1212, and extends to the bottom of the operation assembly 3 for transmission connection, so as to adjust the distance between the operation assembly 3 and the reader-writer 5;
the output ends of the two groups of second electric push rods 24 push the first transverse plate 111 to move upwards, so as to adjust the distance between the first transverse plate 111 and the storage shell 21, and facilitate the function of taking out the RFID card 6 after the test in the storage shell 21 by a tester.
The running assembly 3 comprises a positioning mechanism 31, a linkage mechanism 32 and an adjusting mechanism 33; as illustrated by way of example in fig. 8.
The top of the positioning mechanism 31 is movably attached to the linkage mechanism 32, the top of the adjusting mechanism 33 is fixedly connected to the bottom of the positioning mechanism 31, and the output end of the adjusting mechanism 33 is in transmission connection with the center of the central axis of the linkage mechanism 32.
The positioning mechanism 31 comprises a positioning disc 311; as illustrated by way of example in fig. 9.
The positioning plate 311 is in an open circular structure, a third through hole 312 is formed in the center of the central axis of the positioning plate 311, the inner wall of the third through hole 312 is fixedly connected to one end of the adjusting mechanism 33, and a test slot 313 is formed in the outer wall of one side of the positioning plate 311.
The linkage mechanism 32 comprises a linkage disc 321; as illustrated by way of example in fig. 10.
The movable joint of linkage dish 321 connects at the top of locating plate 311, just a plurality of first slots 322 of group have been seted up to the outer wall of linkage dish 321, a plurality of groups two sets of second slots 323 have all been seted up to the inner wall of first slot 322, a plurality of groups the inner wall of first slot 322 and second slot 323 all is connected with the movable joint of RFID card 6, and the third electric putter 324 is installed in the inner wall of a plurality of groups of first slots 322, just the output of third electric putter 324 all is connected with the movable conflict in one side of RFID card 6.
The adjustment mechanism 33 includes an adjustment cylinder housing 331; as illustrated by way of example in fig. 11.
The tip of adjusting cylinder casing 331 and be close to one side fixed connection of opening part at the inner wall of third through hole 312, the inner wall bottom fixedly connected with fourth electric putter 332 of adjusting cylinder casing 331, the output transmission of fourth electric putter 332 is connected with second motor 333, the output of second motor 333 is connected with the bottom axis center department transmission of linkage disc 321, the tip of adjusting cylinder casing 331 just keeps away from one side of opening part and the output transmission of first electric putter 23 are connected, the inner wall at adjusting cylinder casing 331 is connected in movable laminating to second motor 333.
Specifically, the output end of the fourth electric push rod 332 drives the second motor 333 to move with the linkage disc 321, so as to adjust the distance between the linkage disc 321 and the positioning disc 311, so that the RFID cards 6 on the inner walls of the first slot 322 and the second slot 323 can be closed and connected in the positioning disc 311, and the function of shielding the untested RFID cards 6 is achieved;
the second motor 333 drives the linkage disc 321 to rotate, so that each group of RFID cards 6 on the linkage disc 321 sequentially moves to the port of the test slot 313, forms a vertical interval with the reader-writer 5, is used for batch testing the effect of the communication distance between the RFID cards 6 and the reader-writer 5, and can also move the tested RFID cards 6 and the test slot 313 to the top of the first blanking port 113 or the second blanking port 114 through the rotation of the second motor 333, so as to facilitate the discharging effect of the tested RFID cards 6;
the output end of the third electric push rod 324 pushes the tested RFID card 6, so that the RFID card 6 falls into the first discharging opening 113 or the second discharging opening 114.
The feed assembly 4 comprises a feed housing 41; as illustrated by way of example in fig. 12.
The inner wall one side slip laminating of feed supplement casing 41 is connected with feed supplement platform 42, one side threaded connection that feed supplement casing 41 inner wall was kept away from to feed supplement platform 42 has lead screw 43, the output transmission of lead screw 43 is connected with the output of third motor 44, just one side fixed connection that the output was kept away from to third motor 44 is in the inner wall bottom of feed supplement casing 41, the top of feed supplement casing and one side that is close to feed supplement casing 41 inner wall stack and are provided with a plurality of groups and wait to assemble RFID card 45, feed supplement opening 46 has been seted up to the outer wall of feed supplement casing 41 and one side that is close to wait to assemble RFID card 45, the size of feed supplement opening 46 is greater than the size of waiting to assemble RFID card 45, the inner wall of feed supplement casing 41 and one side fixedly connected with fifth electric putter 47 that is kept away from feed supplement opening 46, just fifth electric putter 47, wait to assemble RFID card 45 and feed supplement opening 46 are the same level setting.
Specifically, the third motor 44 and the feeding platform 42 rotate with continuous threads, so that several groups of to-be-assembled RFID cards 45 are close to the feeding port 46 in the process of moving upwards synchronously, and the output end of the fifth electric push rod 47 is utilized to push one group of to-be-assembled RFID cards 45, so that the to-be-assembled RFID cards 45 penetrate through the feeding port 46 and are movably clamped on the inner walls of the first slot 322 and the second slot 323 at the same time, and the effect of rapid feeding is utilized.
The working principle of the device for testing the communication distance of the RFID reader-writer provided by the embodiment of the invention is as follows:
the third motor 44 and the feeding platform 42 rotate continuously in a threaded manner, so that a plurality of groups of RFID cards 45 to be assembled are close to the feeding port 46 in the process of moving upwards synchronously, and the output end of the fifth electric push rod 47 is utilized to push one group of RFID cards 45 to be assembled, so that the RFID cards 45 to be assembled penetrate through the feeding port 46 and are movably clamped on the inner walls of the first slot 322 and the second slot 323 at the same time, and the effect of rapid feeding is utilized;
the output end of the first electric push rod 23 pushes the first transverse plate 111 to move upwards, so that the RFID card 6 moves to positions with different heights away from the reader-writer 5, and the testing function of the communication distance between the RFID card 6 and the reader-writer 5 is realized;
the linkage disc 321 is driven to rotate by the second motor 333, so that each group of RFID cards 6 on the linkage disc 321 sequentially moves to the port of the test slot 313 to form a vertical interval with the reader-writer 5 for batch test of the effect of the communication distance between the RFID cards 6 and the reader-writer 5, and the tested RFID cards 6 and the tested slot 313 can be moved to the top of the first blanking port 113 or the second blanking port 114 by the rotation of the second motor 333 for facilitating the discharging effect of the tested RFID cards 6;
pushing the tested RFID card 6 through the output end of the third electric push rod 324, so that the RFID card 6 falls into the first blanking opening 113 or the second blanking opening 114;
the bevel gears 1216 are driven to rotate by the first motors 1215 in the two groups of linkage rings 1214, so that in the process of meshing and connecting the bevel gears 1216 with the outer gear ring 1213, the linkage rings 1214 are used for driving the first shielding plate 122 to rotate by taking the central axis of the driving column 1211 as the center, and the rotating first shielding plate 122 is movably attached to the first blanking opening 113 and the second blanking opening 114.
On the basis of the device for testing the communication distance of the RFID reader, the embodiment of the invention also provides a method for testing the device for testing the communication distance of the RFID reader, which comprises the following steps,
the bearing assembly is used for installing a reader-writer to be tested, and the storage assembly is used for pushing the operation assembly, so that the distance between the RFID card on the operation assembly and the reader-writer is adaptively adjusted;
the operation assembly is driven to fall through the storage assembly, so that the operation assembly horizontally contacts with the top of the bearing assembly, the operation assembly is utilized to drive the RFID card to rotate, and the tested RFID card is put into the storage assembly;
sequentially feeding a plurality of groups of RFID cards stacked and stored in the feeding assembly into the operation assembly for supplementing the positions of the tested RFID cards;
pushing the operation assembly again through the storage assembly, so that the distance between the RFID card on the operation assembly and the reader-writer is adjusted in a self-adaptive mode again;
and through automatic rotation of the operation assembly, the stored multiple groups of RFID cards are sequentially subjected to communication distance test with the reader-writer.
Although the invention has been described in detail with reference to the foregoing embodiments, it will be understood by those of ordinary skill in the art that: the technical scheme described in the foregoing embodiments can be modified or some technical features thereof can be replaced by equivalents; such modifications and substitutions do not depart from the spirit and scope of the technical solutions of the embodiments of the present invention.

Claims (6)

1. The utility model provides a testing arrangement of RFID reader communication distance which characterized in that: comprises a bearing component (1), a storage component (2), an operation component (3) and a material supplementing component (4); the bottom of the bearing component (1) is connected with the top of the storage component (2), the bearing component (1) and the storage component (2) are of an open structure, the operation component (3) is horizontally attached and connected to the top of the bearing component (1), the bottom of the operation component (3) is in transmission connection with the storage component (2), the feeding component (4) is fixedly connected to the outer wall of one side of the storage component (2), the feeding component (4) is communicated with the operation component (3) and matched with the operation component (3), a reader (5) is arranged at the top of the bearing component (1) and on one side close to the feeding component (4), a plurality of groups of RFID cards (6) are arranged at the edge of the outer wall of the operation component (3), and the RFID cards (6) are arranged in an annular array with the central axis of the operation component (3) as the center;
the bearing assembly (1) comprises an assembling mechanism (11) and a shielding mechanism (12); the assembly mechanism (11) is of an open annular structure, the shielding mechanism (12) is fixedly connected to the central axis center of the assembly mechanism (11), and one side, far away from the central axis center of the assembly mechanism (11), of the end part of the shielding mechanism (12) is movably attached to the inner wall of the assembly mechanism (11);
the assembly mechanism (11) comprises a first transverse plate (111); the top of the first transverse plate (111) is fixedly connected with an isolating ring (112), the edge of the isolating ring (112) is coincident with the edge of the first transverse plate (111), one side of the top of the first transverse plate (111) is fixedly connected with an isolating plate (115), a first blanking opening (113) and a second blanking opening (114) are formed in the surface of the first transverse plate (111), the first blanking opening (113) and the second blanking opening (114) are symmetrically arranged by taking the central axis of the isolating plate (115) as the center, the first blanking opening (113) and the second blanking opening (114) are of a fan-shaped structure, the other side of the top of the first transverse plate (111) is fixedly connected with an assembling block (116), one end of the assembling block (116) is fixedly connected with the isolating plate (115), one side of the top of the assembling block (116) and far away from the isolating plate (115) is provided with an assembling groove (117), the inner wall of the assembling groove (117) is movably clamped with a reader-writer (5), the bottom of the assembling block (113) and the first transverse plate (116) are provided with a through hole (119) which is communicated with the surface of the first transverse plate (116), the second through hole (1110) coincides with the central axis of the first through hole (119), and the second through hole (1110) is communicated with the containing groove (118);
the shielding mechanism (12) comprises a driving part (121), a first shielding plate (122) and a second shielding plate (123); the novel shielding device is characterized in that a first shielding plate (122) is connected to one side, close to the top, of the outer wall of the driving part (121), a second shielding plate (123) is connected to one side, close to the bottom, of the outer wall of the driving part (121), the first shielding plate (122) and the second shielding plate (123) are of fan-shaped structures, the arc ends of the first shielding plate (122) and the second shielding plate (123) are movably attached to the inner wall of the isolation ring (112), the first shielding plate (122) is movably attached to and matched with the first discharging opening (113), and the second shielding plate (123) is movably attached to and matched with the second discharging opening (114);
the driving part (121) comprises a driving column (1211); the central hole (1212) is formed in the center of the central axis of the driving column (1211), one end of the central hole (1212) is communicated with the second through hole (1110), the other end of the central hole (1212) is communicated with the first through hole (119), the driving column (1211) is fixedly connected to the inner wall of the accommodating groove (118), two groups of outer gear rings (1213) are fixedly connected to the outer wall of the driving column (1211), the two groups of outer gear rings (1213) are symmetrically arranged with the central axis of the driving column (1211) as the center, the linkage rings (1214) are sleeved outside the two groups of outer gear rings (1213), the first motors (1215) are fixedly connected to the inner walls of the two groups of linkage rings (1214), bevel gears (1216) are in transmission connection with the output ends of the two groups of the first motors (1215), the bevel gears (1216) are in meshed connection with the outer gear rings (1213), one group of linkage rings (1214) is fixedly connected to the end part of the first shielding plate (122), and the other group of linkage rings (1214) are fixedly connected to the end part of the second shielding plate (123).
2. The device for testing the communication distance of an RFID reader according to claim 1, wherein: the storage assembly (2) comprises a storage shell (21); the utility model discloses a storage casing (21) is open cylindrical structure, just the top opening part of storage casing (21) and the bottom fixed connection of first diaphragm (111), the inner wall fixedly connected with separation board (22) of storage casing (21), just the axis of separation board (22) coincides with the axis of storage casing (21), first electric putter (23) are installed in the top embedding of separation board (22), just the axis of first electric putter (23) coincides with the axis of separation board (22), the output of first electric putter (23) runs through first through-hole (119), second through-hole (1110) and centre bore (1212), two sets of second electric putter (24) are installed in the top of separation board (22) still embedding, and the bottom at first diaphragm (111) is all connected in the equal transmission of output of two sets of second electric putter (24).
3. The device for testing the communication distance of an RFID reader according to claim 1, wherein: the operation assembly (3) comprises a positioning mechanism (31), a linkage mechanism (32) and an adjusting mechanism (33); the top of positioning mechanism (31) is connected with link gear (32) activity laminating, the top fixed connection of adjustment mechanism (33) is in the bottom of positioning mechanism (31), just the output of adjustment mechanism (33) is connected with the central axis center department transmission of link gear (32).
4. A device for testing communication distance of an RFID reader according to claim 3, wherein: the positioning mechanism (31) comprises a positioning disc (311); the positioning disc (311) is of an open circular structure, a third through hole (312) is formed in the center of the central axis of the positioning disc (311), the inner wall of the third through hole (312) is fixedly connected to one end of the adjusting mechanism (33), and a test groove (313) is formed in the outer wall of one side of the positioning disc (311);
the linkage mechanism (32) comprises a linkage disc (321); the linkage disc (321) is movably attached to the top of the positioning disc (311), a plurality of groups of first slots (322) are formed in the outer wall of the linkage disc (321), two groups of second slots (323) are formed in the inner wall of each first slot (322), the inner walls of the first slots (322) and the second slots (323) are movably attached to the RFID card (6), a third electric push rod (324) is embedded and mounted in the inner walls of the first slots (322), and the output ends of the third electric push rods (324) are movably abutted to one side of the RFID card (6);
the adjusting mechanism (33) comprises an adjusting cylinder shell (331); the end of the adjusting cylinder shell (331) is fixedly connected with the inner wall of the third through hole (312) on one side close to the opening, a fourth electric push rod (332) is fixedly connected with the bottom end of the inner wall of the adjusting cylinder shell (331), a second motor (333) is connected with the output end of the fourth electric push rod (332) in a transmission mode, the output end of the second motor (333) is connected with the center of the central axis of the bottom of the linkage disc (321) in a transmission mode, and one side, far away from the opening, of the end of the adjusting cylinder shell (331) is connected with the output end of the first electric push rod (23) in a transmission mode, and the second motor (333) is movably attached to the inner wall of the adjusting cylinder shell (331).
5. The device for testing the communication distance of an RFID reader according to claim 1, wherein: the feeding assembly (4) comprises a feeding shell (41); the automatic feeding device is characterized in that a feeding platform (42) is connected to one side of the inner wall of the feeding shell (41) in a sliding fit mode, one side of the feeding platform (42) away from the inner wall of the feeding shell (41) is connected with a screw rod (43) in a threaded mode, the output end of the screw rod (43) is connected with the output end of a third motor (44) in a transmission mode, one side of the third motor (44) away from the output end is fixedly connected to the bottom end of the inner wall of the feeding shell (41), a plurality of groups of RFID cards (45) to be assembled are stacked at the top of the feeding shell and one side, close to the inner wall of the feeding shell (41), of the feeding shell (41) is provided with a plurality of groups of RFID cards (45), the outer wall of the feeding shell (41) is provided with a feeding opening (46) close to one side of the RFID cards (45) to be assembled, the size of the feeding opening (46) is larger than that of the RFID cards (45) to be assembled, one side of the inner wall of the feeding shell (41) is further away from the feeding opening (46) is fixedly connected with a fifth electric push rod (47), and the RFID cards (47) to be assembled and the RFID cards (45) are arranged horizontally.
6. A method of testing a device for testing communication distance of an RFID reader according to any one of claims 1 to 5, characterized in that: the test method comprises the following steps:
the bearing assembly is used for installing a reader-writer to be tested, and the storage assembly is used for pushing the operation assembly, so that the distance between the RFID card on the operation assembly and the reader-writer is adaptively adjusted;
the operation assembly is driven to fall through the storage assembly, so that the operation assembly horizontally contacts with the top of the bearing assembly, the operation assembly is utilized to drive the RFID card to rotate, and the tested RFID card is put into the storage assembly;
sequentially feeding a plurality of groups of RFID cards stacked and stored in the feeding assembly into the operation assembly for supplementing the positions of the tested RFID cards;
pushing the operation assembly again through the storage assembly, so that the distance between the RFID card on the operation assembly and the reader-writer is adjusted in a self-adaptive mode again;
and through automatic rotation of the operation assembly, the stored multiple groups of RFID cards are sequentially subjected to communication distance test with the reader-writer.
CN202410029317.1A 2024-01-09 2024-01-09 Device and method for testing communication distance of RFID reader-writer Active CN117556852B (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN202410029317.1A CN117556852B (en) 2024-01-09 2024-01-09 Device and method for testing communication distance of RFID reader-writer

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN202410029317.1A CN117556852B (en) 2024-01-09 2024-01-09 Device and method for testing communication distance of RFID reader-writer

Publications (2)

Publication Number Publication Date
CN117556852A CN117556852A (en) 2024-02-13
CN117556852B true CN117556852B (en) 2024-03-22

Family

ID=89823446

Family Applications (1)

Application Number Title Priority Date Filing Date
CN202410029317.1A Active CN117556852B (en) 2024-01-09 2024-01-09 Device and method for testing communication distance of RFID reader-writer

Country Status (1)

Country Link
CN (1) CN117556852B (en)

Citations (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101770587A (en) * 2009-06-10 2010-07-07 中国科学院自动化研究所 System and method for negative testing of anti-collision capacity of RFID reader
CN203325014U (en) * 2013-07-26 2013-12-04 青岛科技大学 Device measuring read-write distance of RFID (Radio Frequency Identification) electronic label
CN103679231A (en) * 2013-12-10 2014-03-26 成都天志大行信息科技有限公司 Communication distance testing device for RFID reader-writer
JP2020112957A (en) * 2019-01-09 2020-07-27 大日本印刷株式会社 RFID system, RFID card and reader/writer device
CN111695364A (en) * 2020-06-18 2020-09-22 智汇芯联(厦门)微电子有限公司 Support for RFID label test and RFID label test system
CN113091687A (en) * 2021-05-12 2021-07-09 雷沃工程机械集团有限公司 Dynamic performance test rack for tilt sensor
CN114818760A (en) * 2022-05-18 2022-07-29 深圳市昱闵科技有限公司 High-efficiency anti-interference ultrahigh frequency RFID reader-writer
CN116165173A (en) * 2023-03-09 2023-05-26 宁夏回族自治区地质局 Rock salt is analytical test device for geological prospecting
WO2023114976A1 (en) * 2021-12-16 2023-06-22 Automaton, Inc. DBA RADAR Antenna arrays and signal processing for rfid tag readers
CN116359644A (en) * 2023-03-17 2023-06-30 于子甲 Anti-interference multistage detection device and detection method for computer network junction box

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2015189846A1 (en) * 2014-06-10 2015-12-17 Tag & Find Wireless Solutions Ltd. Rfid reader and antenna system for locating items using a mobile device

Patent Citations (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101770587A (en) * 2009-06-10 2010-07-07 中国科学院自动化研究所 System and method for negative testing of anti-collision capacity of RFID reader
CN203325014U (en) * 2013-07-26 2013-12-04 青岛科技大学 Device measuring read-write distance of RFID (Radio Frequency Identification) electronic label
CN103679231A (en) * 2013-12-10 2014-03-26 成都天志大行信息科技有限公司 Communication distance testing device for RFID reader-writer
JP2020112957A (en) * 2019-01-09 2020-07-27 大日本印刷株式会社 RFID system, RFID card and reader/writer device
CN111695364A (en) * 2020-06-18 2020-09-22 智汇芯联(厦门)微电子有限公司 Support for RFID label test and RFID label test system
CN113091687A (en) * 2021-05-12 2021-07-09 雷沃工程机械集团有限公司 Dynamic performance test rack for tilt sensor
WO2023114976A1 (en) * 2021-12-16 2023-06-22 Automaton, Inc. DBA RADAR Antenna arrays and signal processing for rfid tag readers
CN114818760A (en) * 2022-05-18 2022-07-29 深圳市昱闵科技有限公司 High-efficiency anti-interference ultrahigh frequency RFID reader-writer
CN116165173A (en) * 2023-03-09 2023-05-26 宁夏回族自治区地质局 Rock salt is analytical test device for geological prospecting
CN116359644A (en) * 2023-03-17 2023-06-30 于子甲 Anti-interference multistage detection device and detection method for computer network junction box

Also Published As

Publication number Publication date
CN117556852A (en) 2024-02-13

Similar Documents

Publication Publication Date Title
CN117556852B (en) Device and method for testing communication distance of RFID reader-writer
CN115865766A (en) Dual-mode communication module batch testing device
CN208937271U (en) A kind of cell pressure detection device
CN103331648A (en) Automatic cutter-replaceable rotary mechanical arm vibration measuring device
CN209273036U (en) A kind of intermediate relay process units
CN111423981A (en) High-purity stem cell culture automation equipment
CN109940549A (en) A kind of rotor bearing automatic assembling device
CN115421079A (en) Photovoltaic terminal box assembly detection device
CN115031958A (en) New energy gearbox offline test clamp, equipment and method
CN208264586U (en) The energy module of sharable unmanned plane replaces system
CN208635713U (en) A kind of carbon film angle displacement sensor
CN220290650U (en) Torsion spring structure of double-power change-over switch change-over disc
CN114264978B (en) Automatic monitoring system for electrical engineering
CN219067056U (en) Battery box structure convenient to overhaul
CN219978312U (en) Detection device of chemiluminescence immunoassay analyzer and chemiluminescence immunoassay analyzer
CN217093364U (en) Transfer jar automatically regulated PH system
CN213903670U (en) Over-and-under type jam-proof test structure
CN220012802U (en) Lifting device and lifting system for coating cavity
CN218350243U (en) Clay stabilizer washing resistance evaluation device
CN216343836U (en) Gear box device of elevator
CN218537137U (en) Unmanned aerial vehicle parking device
CN215591012U (en) On-machine charging type unmanned aerial vehicle, take-off and landing platform and system
CN209297936U (en) A kind of smart phone remote control switch
CN220581574U (en) Rust-proof device for nitrogen spring
CN219336742U (en) Shell direction distinguishing and adjusting mechanism

Legal Events

Date Code Title Description
PB01 Publication
PB01 Publication
SE01 Entry into force of request for substantive examination
SE01 Entry into force of request for substantive examination
GR01 Patent grant
GR01 Patent grant