CN110780186A - Non-contact intelligent card strip read-write detection device - Google Patents
Non-contact intelligent card strip read-write detection device Download PDFInfo
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- CN110780186A CN110780186A CN201911214981.9A CN201911214981A CN110780186A CN 110780186 A CN110780186 A CN 110780186A CN 201911214981 A CN201911214981 A CN 201911214981A CN 110780186 A CN110780186 A CN 110780186A
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- 230000003014 reinforcing effect Effects 0.000 claims description 6
- 230000007723 transport mechanism Effects 0.000 claims description 4
- 230000008878 coupling Effects 0.000 abstract description 4
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- 230000005540 biological transmission Effects 0.000 description 6
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- 238000004080 punching Methods 0.000 description 4
- 230000009286 beneficial effect Effects 0.000 description 2
- 238000010030 laminating Methods 0.000 description 2
- 238000003475 lamination Methods 0.000 description 2
- 238000004806 packaging method and process Methods 0.000 description 2
- 238000003466 welding Methods 0.000 description 2
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R31/00—Arrangements for testing electric properties; Arrangements for locating electric faults; Arrangements for electrical testing characterised by what is being tested not provided for elsewhere
- G01R31/28—Testing of electronic circuits, e.g. by signal tracer
- G01R31/2851—Testing of integrated circuits [IC]
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R31/00—Arrangements for testing electric properties; Arrangements for locating electric faults; Arrangements for electrical testing characterised by what is being tested not provided for elsewhere
- G01R31/28—Testing of electronic circuits, e.g. by signal tracer
- G01R31/2851—Testing of integrated circuits [IC]
- G01R31/2884—Testing of integrated circuits [IC] using dedicated test connectors, test elements or test circuits on the IC under test
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Abstract
The application discloses a non-contact intelligent card strip reading and writing detection device, which is used for detecting a non-contact intelligent card strip and comprises a detection mechanism and an operating mechanism, wherein the detection mechanism is connected with the operating mechanism; the operating structure comprises a first part and a second part; the first part comprises a motor, a coupling, a locking nut, a ball screw, a nut seat and a bearing seat which are connected in sequence; the first part also comprises a motor mounting plate and a vertical plate; the second part comprises a sliding plate and a detection head; one side of the sliding plate is fixedly connected with the nut seat and is in sliding connection with the guide rail, and one end, far away from the motor, of the other side of the sliding plate is fixedly connected with the detection head; the detection head comprises a plurality of probes; the probe is connected with the detection mechanism; the detection mechanism comprises a plurality of card readers, and the card readers are electrically connected with the probes through connecting wires. In the invention, unqualified non-contact smart card chips can be detected in time before the non-contact smart card chips are not manufactured into finished smart cards, thereby avoiding the waste of subsequent materials and saving the cost.
Description
Technical Field
The invention belongs to the technical field of mechanical equipment, and particularly relates to a non-contact intelligent card strip reading and writing detection device.
Background
Contactless smart card strips are an industry standard way of packaging and packing contactless smart card chips for mass production. Contactless smart card strips have many benefits, including: 1) the number of the chips can be counted simply and conveniently; 2) the packaging and the transportation are convenient; 3) the method is convenient for the next procedure to carry out the production of the non-contact smart card in a large scale. However, when the chip is produced into the smart card in a large scale, a series of processes such as PVC front and back printing, laminating and positioning, chip punching and welding, antenna implantation, film lamination and punching are required to form the card. However, in the production process, it is not ensured that the chips punched from the tape are 100% good. After the finished smart card is manufactured, a series of operations, such as downloading a Chip Operating System (COS), loading a secret key, establishing personalization and the like, need to be performed on a single card (a plurality of cards can interfere with reading and writing in a short distance and need to shield electromagnetic interference), so that the finished smart card can be put into formal application.
How to detect the quality of the chip before the finished smart card is manufactured, and to perform operations such as downloading the chip Operating system cos (chip Operating system), loading the key, establishing personalization, and the like on the chip in batches is a problem to be solved at present.
Disclosure of Invention
In view of the above, the present invention discloses a non-contact smart card strip read-write detection apparatus, which is used for detecting a non-contact smart card strip, and comprises a detection mechanism and an operation mechanism, wherein the detection mechanism is connected with the operation mechanism;
the operating structure comprises a first portion and a second portion, the first portion and the second portion being connected, wherein,
the first part comprises a motor, a coupler, a locking nut, a ball screw, a nut seat and a bearing seat which are connected in sequence, and the central axes of the motor, the coupler, the locking nut, the ball screw, the nut seat and the bearing seat are superposed; the first part also comprises a motor mounting plate and a vertical plate, the motor mounting plate is positioned between the motor and the coupler and is fixedly connected with the motor, the vertical plate is vertically and fixedly connected with the motor mounting plate, the bearing seat is fixedly connected with the vertical plate, one side of the vertical plate, which is far away from the bearing seat, is provided with a plurality of guide rails, the guide rails are vertical to the motor mounting plate, and the guide rails are in sliding connection with the second part; the nut seat is connected with the second part; the vertical plate is fixedly connected with the detection mechanism;
the second part comprises a sliding plate and a detection head; one side of the sliding plate is fixedly connected with the nut seat and is in sliding connection with the guide rail, and one end, far away from the motor, of the other side of the sliding plate is fixedly connected with the detection head; the detection head comprises a first support frame, the first support frame is fixedly connected with the sliding plate, and one side, away from the sliding plate, of the first support frame is provided with a plurality of probes; the probe is connected with the detection mechanism;
the detection mechanism comprises a second support frame, and the second support frame is fixedly connected with the vertical plate; the second support frame is internally provided with a plurality of card reader mounting frames, each card reader mounting frame is provided with a card reader, and the card readers are electrically connected with the probes through connecting wires.
Preferably, the non-contact smart card strip is located on one side of the probe far away from the motor, and the non-contact smart card strip comprises a strip body, and a plurality of non-contact smart card chips are arranged on the strip body.
Preferably, two adjacent probes are electrically connected with the same non-contact smart card chip.
Preferably, the connecting lines include a first connecting line and a second connecting line, and the two probes electrically connected to the same non-contact smart card chip are electrically connected to the first connecting line and the second connecting line, respectively.
Preferably, the contactless smart card strip is provided with a transfer mechanism, and the contactless smart card strip is positioned on the transfer mechanism.
Preferably, the vertical plate is fixedly connected with the second support frame through a connecting plate.
Preferably, the second portion further comprises a plurality of reinforcing plates fixedly connected with the sliding plate and the first support frame, respectively.
Preferably, the second support frame is a concave frame and comprises a first plate, a bottom plate and a second plate which are vertically connected in sequence, the concave frame is provided with a notch, the notch faces the vertical plate, and the bottom plate is parallel to the vertical plate; the card reader mounting plate is positioned in the second support frame and is fixedly connected with the bottom plate; the connecting plate is fixedly connected with the first plate, the bottom plate and the second plate respectively.
Preferably, the nut base is rotatably connected with the ball screw.
Preferably, the contactless smart card chips are arranged in an array on the strip body.
Compared with the prior art, the non-contact intelligent card strip reading and writing detection device provided by the invention has the following beneficial effects:
firstly, the probe is connected with a card reader and can be used for detecting the non-contact intelligent card chip on the non-contact intelligent card strip, and the unqualified non-contact intelligent card chip can be detected in time before the non-contact intelligent card chip is not manufactured into a finished intelligent card, so that the waste of subsequent materials is avoided, and the cost is saved.
Secondly, the detection head of the invention comprises a plurality of probes which are connected with a plurality of card readers, so that a plurality of non-contact intelligent card chips can be detected at one time, and the detection efficiency is high.
Thirdly, the non-contact intelligent card strip reading and writing detection device can also carry out reading and writing operations such as downloading the in-chip operating system COS, loading the secret key, establishing personalization and the like on the non-contact intelligent card chip on the non-contact intelligent card strip, has no electromagnetic interference, and can carry out the reading and writing operation on a plurality of non-contact intelligent card chips at one time.
Fourthly, the invention can carry out batch detection and read-write operation on the non-contact intelligent card chips on the non-contact intelligent card strip, has high efficiency, simplifies the process flow and reduces the cost.
Fifthly, the non-contact intelligent card strip reading and writing detection device is simple in structure and easy to manufacture.
Drawings
The accompanying drawings, which are included to provide a further understanding of the application and are incorporated in and constitute a part of this application, illustrate embodiment(s) of the application and together with the description serve to explain the application and not to limit the application. In the drawings:
fig. 1 is a schematic view of an overall structure of a non-contact smart card strip read-write detection apparatus in embodiment 1 of the present invention;
FIG. 2 is a side view of an operating mechanism in embodiment 1 of the present invention;
FIG. 3 is a partially enlarged view of the detection mechanism in embodiment 1 of the present invention;
FIG. 4 is a partially enlarged view of an operating mechanism in embodiment 1 of the present invention;
FIG. 5 is a partially enlarged view of a non-contact smart card strip in embodiment 1 of the present invention;
100 is a detection mechanism, 200 is an operation mechanism, 1 is a motor, 2 is a motor mounting plate, 3 is a coupling, 4 is a locknut, 5 is a ball screw, 6 is a nut seat, 7 is a bearing seat, 8 is a guide rail, 9 is a vertical plate, 10 is a sliding plate, 11 is a reinforcing plate, 12 is a detection head, 13 is a non-contact smart card strip, 14 is a first portion, 15 is a second portion, 16 is a first support frame, 17 is a probe, 19 is a card reader mounting plate, 20 is a card reader, 21 is a connection line, 22 is a strip body, 23 is a non-contact smart card chip, 24 is a first connection line, 25 is a second connection line, 26 is a connection plate, 27 is a first plate, 28 is a bottom plate, and 29 is a second plate.
Detailed Description
The technical solution in 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. It should be noted that the described embodiments are merely some embodiments, rather than all embodiments, of the invention and are merely illustrative in nature and in no way intended to limit the invention, its application, or uses. The protection scope of the present application shall be subject to the definitions of the appended claims.
Example 1:
a specific embodiment of the non-contact smart card strip read-write detecting device according to the present invention is described below with reference to fig. 1-5, the non-contact smart card strip read-write detecting device is used for detecting a non-contact smart card strip 13, and includes a detecting mechanism 100 and an operating mechanism 200, the detecting mechanism 100 is connected to the operating mechanism 200;
the operating structure 200 comprises a first portion 14 and a second portion 15, the first portion 14 and the second portion 15 being connected, wherein,
the first part 14 comprises a motor 1, a coupling 3, a locking nut 4, a ball screw 5, a nut seat 6 and a bearing seat 7 which are connected in sequence, and the central axes of the motor 1, the coupling 3, the locking nut 4, the ball screw 5, the nut seat 6 and the bearing seat 7 are superposed; the first part 14 further comprises a motor mounting plate 2 and a vertical plate 9, the motor mounting plate 2 is positioned between the motor 1 and the coupler 3 and fixedly connected with the motor 1, the vertical plate 9 is vertically and fixedly connected with the motor mounting plate 2, the bearing seat 7 is fixedly connected with the vertical plate 9, one side of the vertical plate 9, which is far away from the bearing seat 7, is provided with a plurality of guide rails 8, the guide rails 8 are vertical to the motor mounting plate 2, and the guide rails 8 are slidably connected with the second part 15; the nut seat 6 is connected with the second part 15; the vertical plate 9 is fixedly connected with the detection mechanism 100;
the second portion 15 includes the slide plate 10 and the detection head 12; one side of the sliding plate 10 is fixedly connected with the nut seat 6 and is in sliding connection with the guide rail 8, and one end of the other side of the sliding plate 10, which is far away from the motor 1, is fixedly connected with the detection head 12; the detection head 12 comprises a first support frame 16, the first support frame 16 is fixedly connected with the sliding plate 10, and one side of the first support frame 16, which is far away from the sliding plate 10, is provided with a plurality of probes 17; the probe 17 is connected with the detection mechanism 100;
the detection mechanism 100 comprises a second support frame, and the second support frame is fixedly connected with the vertical plate 9; a plurality of card reader mounting frames 19 are arranged in the second supporting frame, a card reader 20 is arranged on each card reader mounting frame 19, and the card reader 20 is electrically connected with the probe 17 through a connecting wire 21. The probe 17 is connected with the card reader 20 and can be used for detecting or reading and writing the non-contact smart card chip 23 on the non-contact smart card strip 13, so that the unqualified non-contact smart card chip 23 can be detected in time before the non-contact smart card chip 23 is not manufactured into a finished smart card, the waste of subsequent materials is avoided, and the cost is saved. The read-write operation is to perform read-write operations such as downloading an in-chip operating system COS, loading a secret key, establishing personalization and the like on the non-contact smart card chip 23, and then perform PVC front-back printing, lamination positioning, punching and welding of the non-contact smart card chip 23, embedding an antenna, laminating of a film and punching to form a card, so that the card can be used formally. In the prior art, after a finished product intelligent card is manufactured, a single card is subjected to magnetic induction and then is subjected to COS (operation System) of an in-slide operation system, a key loading, personalization establishment and the like, so that formal application can be put into use, and a plurality of finished product cards cannot be processed at one time, because the plurality of cards need to be shielded from electromagnetic interference due to interference during short-distance reading and writing. In the embodiment, before the finished card is manufactured, when the non-contact smart card chip 23 is still positioned on the non-contact smart card strip 13, the non-contact smart card chip 23 is directly contacted with the probe 17 instead of being magnetically induced, so that the non-contact smart card strip can not be interfered by electromagnetism, can perform batch detection and read-write operation, has high working efficiency, simplifies the process flow and reduces the cost.
The non-contact smart card strip 13 is positioned on one side of the probe 17 far away from the motor 1, the non-contact smart card strip 13 comprises a strip body 22, and a plurality of non-contact smart card chips 23 are arranged on the strip body 22. Two adjacent probes 17 are electrically connected to the same contactless smart card chip 23. The connecting lines 21 include a first connecting line 24 and a second connecting line 25, and the two probes 17 electrically connected to the same non-contact smart card chip 23 are electrically connected to the first connecting line 24 and the second connecting line 25, respectively. When the contactless smart card chip 23 is detected or read/written, the two probes 17 need to be electrically connected to the contactless smart card chip 23 respectively, so as to supply current to the contactless smart card chip 23, and the two probes 17 are electrically connected to the same card reader 20 through the first connection line 24 and the second connection line 25 respectively, that is, one card reader 20 is used for detecting one contactless smart card chip 23.
The device for detecting the read-write of the contactless smart card strip further comprises a transport mechanism (not shown in the figure) on which the contactless smart card strip 13 is located. The non-contact intelligent card strip 13 is driven by the transmission structure to be transmitted to the lower part of the detection head 12, so that the probe 17 on the detection head 12 can be electrically connected with the non-contact intelligent card strip 13, and the transmission mechanism is matched with a non-contact intelligent card strip read-write detection device to finish the detection or read-write operation of the non-contact intelligent card chip 23. The transport mechanism may be a belt conveyor.
The vertical plate 9 is fixedly connected with a second support frame through a connecting plate 26, the second support frame is a concave frame and comprises a first plate 27, a bottom plate 28 and a second plate 29 which are sequentially and vertically connected, the concave frame is provided with a notch, the notch faces the vertical plate 9, and the bottom plate 28 is parallel to the vertical plate 9; the card reader mounting plate 19 is positioned in the second support frame and is fixedly connected with the bottom plate 28; the connecting plate 26 is fixedly connected with the first plate 27, the bottom plate 28, the second plate 29 and the vertical plate 9 respectively.
The second portion 15 further comprises a plurality of reinforcing plates 11, the reinforcing plates 11 being fixedly connected to the slide plate 10 and the first support frame 16, respectively. The reinforcement plate 11 may make the connection between the slide plate 10 and the first support frame 16 more stable.
The nut seat 6 is rotationally connected with the ball screw 5; the ball screw 5 is the most frequently used transmission element on the tool machinery and the precision machinery, and the main function of the ball screw is to convert the rotary motion into the linear motion or convert the torque into the axial repeated acting force, so the nut seat 6 can move up and down along the ball screw 5 under the driving of the ball screw 5, so as to drive the sliding plate 10 to move up and down along the guide rail 8, and the probe 17 is contacted with or not contacted with the non-contact smart card strip 13 on the transmission mechanism; meanwhile, the ball screw 5 has the characteristics of high precision, reversibility and high efficiency, and the ball screw 5 has small frictional resistance, so that the energy is saved, and the cost is reduced.
The non-contact intelligent card chips 23 are arranged on the strip body 22 in an array mode, so that the probes 17 arranged in the array mode are convenient to align, the operation process is simplified, the working efficiency of a machine is improved, and the probes 17 arranged in the array mode enable the non-contact intelligent card strip reading and writing detection device to be simple in structure and convenient to manufacture.
The non-contact intelligent card strip reading and writing detection device in the embodiment is simple in structure and easy to manufacture.
Example 2:
on the basis of embodiment 1, this embodiment is an application example.
1) The transmission mechanism transmits the non-contact smart card strip 13 positioned on the transmission mechanism to the lower part of the detection head 12, so that the probes 17 on the detection head 12 correspond to the non-contact smart card chips 23 on the non-contact smart card strip 13 one by one;
2) the nut seat 6 rotates downwards along the ball screw 5 to drive the sliding plate 10 to move downwards along the guide rail 8, so that two adjacent probes 17 are in direct contact with the non-contact smart card chip 23 below;
3) the card reader 20 sends an execution instruction to the corresponding probe 17 through the connecting line 21 and waits for receiving feedback information; when the feedback information is wrong, the detected non-contact smart card chip 23 is indicated to be unqualified, and the card reader 20 makes a discarding mark for the non-contact smart card chip 23; when the feedback information is correct, continuing the next step;
4) performing read-write operations such as downloading an in-chip operating system COS, loading a secret key and establishing personalization on the non-contact smart card chip 23;
5) the contactless smart card strip 13 is transported further to the next process.
According to the embodiments, the application has the following beneficial effects:
firstly, the probe is connected with a card reader and can be used for detecting the non-contact intelligent card chip on the non-contact intelligent card strip, and the unqualified non-contact intelligent card chip can be detected in time before the non-contact intelligent card chip is not manufactured into a finished intelligent card, so that the waste of subsequent materials is avoided, and the cost is saved.
Secondly, the detection head of the invention comprises a plurality of probes which are connected with a plurality of card readers, so that a plurality of non-contact intelligent card chips can be detected at one time, and the detection efficiency is high.
Thirdly, the non-contact intelligent card strip reading and writing detection device can also carry out reading and writing operations such as downloading the in-chip operating system COS, loading the secret key, establishing personalization and the like on the non-contact intelligent card chip on the non-contact intelligent card strip, has no electromagnetic interference, and can carry out the reading and writing operation on a plurality of non-contact intelligent card chips at one time.
Fourthly, the invention can carry out batch detection and read-write operation on the non-contact intelligent card chips on the non-contact intelligent card strip, has high efficiency, simplifies the process flow and reduces the cost.
Fifthly, the non-contact intelligent card strip reading and writing detection device is simple in structure and easy to manufacture.
While certain embodiments of the present invention have been described in detail by way of example and with reference to the accompanying drawings and embodiments, it is to be understood by those skilled in the art that the foregoing examples are for purposes of illustration only and are not intended to limit the scope of the invention. Although the present invention has been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that various changes may be made and equivalents may be substituted for elements thereof. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention. The scope of the invention is defined by the appended claims.
Claims (10)
1. A non-contact intelligent card strip read-write detection device is characterized in that the device is used for detecting a non-contact intelligent card strip and comprises a detection mechanism and an operating mechanism, wherein the detection mechanism is connected with the operating mechanism;
the operating structure comprises a first portion and a second portion, the first portion and the second portion being connected, wherein,
the first part comprises a motor, a coupler, a locking nut, a ball screw, a nut seat and a bearing seat which are connected in sequence, and the central axes of the motor, the coupler, the locking nut, the ball screw, the nut seat and the bearing seat are superposed; the first part also comprises a motor mounting plate and a vertical plate, the motor mounting plate is positioned between the motor and the coupler and is fixedly connected with the motor, the vertical plate is vertically and fixedly connected with the motor mounting plate, the bearing seat is fixedly connected with the vertical plate, one side of the vertical plate, which is far away from the bearing seat, is provided with a plurality of guide rails, the guide rails are vertical to the motor mounting plate, and the guide rails are in sliding connection with the second part; the nut seat is connected with the second part; the vertical plate is fixedly connected with the detection mechanism;
the second part comprises a sliding plate and a detection head; one side of the sliding plate is fixedly connected with the nut seat and is in sliding connection with the guide rail, and one end, far away from the motor, of the other side of the sliding plate is fixedly connected with the detection head; the detection head comprises a first support frame, the first support frame is fixedly connected with the sliding plate, and one side, away from the sliding plate, of the first support frame is provided with a plurality of probes; the probe is connected with the detection mechanism;
the detection mechanism comprises a second support frame, and the second support frame is fixedly connected with the vertical plate; the second support frame is internally provided with a plurality of card reader mounting frames, each card reader mounting frame is provided with a card reader, and the card readers are electrically connected with the probes through connecting wires.
2. The apparatus according to claim 1, wherein the contactless smart card strip is located on a side of the probe away from the motor, and the contactless smart card strip includes a strip body on which a plurality of contactless smart card chips are disposed.
3. The apparatus according to claim 2, wherein two adjacent probes are electrically connected to the same contactless smart card chip.
4. The apparatus according to claim 3, wherein the connection lines comprise a first connection line and a second connection line, and two of the probes electrically connected to the same contactless smart card chip are electrically connected to the first connection line and the second connection line, respectively.
5. The apparatus according to claim 1, further comprising a transport mechanism, wherein the contactless smart card strip is located on the transport mechanism.
6. The device according to claim 1, wherein said vertical plate is fixedly connected to said second support frame by a connecting plate.
7. The apparatus according to claim 1, wherein the second portion further comprises a plurality of reinforcing plates, and the reinforcing plates are fixedly connected to the sliding plate and the first supporting frame, respectively.
8. The device for detecting the read-write of the non-contact smart card strip according to claim 6, wherein the second support frame is a concave-shaped frame, and comprises a first plate, a bottom plate and a second plate which are vertically connected in sequence, the concave-shaped frame is provided with a notch, the notch faces the vertical plate, and the bottom plate is parallel to the vertical plate; the card reader mounting plate is positioned in the second support frame and is fixedly connected with the bottom plate; the connecting plate is fixedly connected with the first plate, the bottom plate and the second plate respectively.
9. The contactless smart card strip read-write detecting device according to claim 1, wherein the nut holder is rotatably connected to the ball screw.
10. The apparatus according to claim 2, wherein the contactless smart card chips are arranged in an array on the strip body.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201911214981.9A CN110780186A (en) | 2019-12-02 | 2019-12-02 | Non-contact intelligent card strip read-write detection device |
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| CN201911214981.9A CN110780186A (en) | 2019-12-02 | 2019-12-02 | Non-contact intelligent card strip read-write detection device |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN113194457A (en) * | 2021-05-10 | 2021-07-30 | 福建通力达实业有限公司 | SIM card information reading structure and detection method |
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| CN106326958A (en) * | 2016-10-15 | 2017-01-11 | 广州明森科技股份有限公司 | Smart card reading device |
| CN106353669A (en) * | 2016-10-15 | 2017-01-25 | 广州明森科技股份有限公司 | Device for detecting read-write functions of smart card chip |
| CN206178060U (en) * | 2016-10-27 | 2017-05-17 | 东莞市众宏通智能卡有限公司 | Smart card chip test machine |
| CN208537689U (en) * | 2018-08-06 | 2019-02-22 | 江苏恒宝智能***技术有限公司 | A kind of test cell, test cell group and group's tester |
| CN108983075A (en) * | 2018-08-17 | 2018-12-11 | 惠州高盛达科技有限公司 | Multidiameter delay SDIO test macro |
| CN109284641A (en) * | 2018-10-18 | 2019-01-29 | 王开来 | A kind of smart card is tower to write chip apparatus |
| CN211348537U (en) * | 2019-12-02 | 2020-08-25 | 北京德瑞芯科技有限公司 | Non-contact intelligent card strip read-write detection device |
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| CN113194457A (en) * | 2021-05-10 | 2021-07-30 | 福建通力达实业有限公司 | SIM card information reading structure and detection method |
| CN113194457B (en) * | 2021-05-10 | 2023-11-14 | 福建通力达实业有限公司 | SIM card information reading structure and detection method |
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