CN215641428U - RFID test shielding box and system - Google Patents
RFID test shielding box and system Download PDFInfo
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- CN215641428U CN215641428U CN202121404951.7U CN202121404951U CN215641428U CN 215641428 U CN215641428 U CN 215641428U CN 202121404951 U CN202121404951 U CN 202121404951U CN 215641428 U CN215641428 U CN 215641428U
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Abstract
The embodiment of the utility model discloses a Radio Frequency Identification (RFID) test shielding box and a system, wherein the RFID test shielding box comprises a shielding box body, wherein the shielding box body is provided with a first test antenna and a second test antenna; the shielding box further comprises a first interface and a second interface, the first interface is used for being connected with a computer, the computer is used for sending a control signal to the RFID equipment to be tested, the second interface is used for being connected with a frequency spectrograph, and the frequency spectrograph is used for analyzing signals received by the second testing antenna, so that the construction cost is low, and the testing period is short.
Description
Technical Field
The utility model relates to the technical field of communication, in particular to an RFID test shielding box and an RFID test shielding system.
Background
In the development of RFID products, authentication of relevant departments is required before marketing, the products belong to legal products after the authentication certificate is taken, radiation testing is the testing item with the highest cost in the process, the testing is required to be carried out in a microwave dark room, the testing time is charged according to hours, and the cost is very high.
The microwave darkroom test method specifically comprises the following steps: in a 3m method testing darkroom, an RFID reader-writer receives an antenna to emit a 30dBm power signal, a standard receiving antenna is adopted at a position with a distance of 3m to scan the radiation emission condition of the reader-writer, a round table where the reader-writer is positioned rotates 360 degrees in the testing process, the receiving antenna moves in a height range of 1-4m, radio frequency signals received by scanning are sent to a radiation testing receiver in the horizontal direction and the vertical direction, and the maximum value of radiation emission of other frequencies except the emission frequency is searched.
The microwave darkroom test method needs to be carried out in a darkroom, the cost for building the darkroom is high, and few millions and more tens of millions are needed. If a darkroom with a test structure is used, advance reservation is needed, the reservation time is limited, if a problem exists, the darkroom needs to be modified and reserved next time, and therefore the development period is prolonged.
SUMMERY OF THE UTILITY MODEL
In order to solve the technical problem, the embodiment of the utility model provides an RFID test shielding box and an RFID test shielding system.
A first aspect of an embodiment of the present invention provides an RFID test shielding box, including: the RFID device comprises a shielding box body, a first testing antenna and a second testing antenna, wherein the shielding box body is provided with the first testing antenna and the second testing antenna, the first testing antenna is connected with the RFID device to be tested, the first testing antenna is used for transmitting signals, and the second testing antenna is used for receiving signals; the shielding box further comprises a first interface and a second interface, the first interface is used for being connected with a computer, the computer is used for sending a control signal to the RFID equipment to be tested, the second interface is used for being connected with a frequency spectrograph, and the frequency spectrograph is used for analyzing the signal received by the second testing antenna.
Optionally, an RFID tag is further disposed in the shielding box, and the RFID tag is disposed on the rear side in the shielding box.
Optionally, the second test antenna is disposed on one side in the shielding box.
Optionally, the shielding box is a rectangular parallelepiped.
Optionally, the shielding box is a cube.
Optionally, a shielding material is disposed in the shielding box body, and the shielding material includes one or more of a metal plate, a metal mesh, and a radio wave shielding film.
Optionally, an opening is provided at one side of the shielding box body, and the opening is used for placing or taking out the RFID device to be tested.
Optionally, the first interface includes at least one of a serial port and a network port.
Optionally, the second interface is a serial port.
The second aspect of the present invention also provides an RFID test shielding system, including the RFID test shielding box of the first aspect.
In the technical scheme provided by the embodiment of the utility model, the RFID device testing device comprises a shielding box body, wherein the shielding box body is provided with a first testing antenna and a second testing antenna, the first testing antenna is connected with the RFID device to be tested, the first testing antenna is used for transmitting signals, and the second testing antenna is used for receiving signals; the shielding box further comprises a first interface and a second interface, the first interface is used for being connected with a computer, the computer is used for sending a control signal to the RFID equipment to be tested, the second interface is used for being connected with a frequency spectrograph, and the frequency spectrograph is used for analyzing signals received by the second testing antenna, so that the construction cost is low, and the testing period is short.
Drawings
FIG. 1 is a schematic structural diagram of an RFID test shielding box provided in an embodiment of the present invention;
FIG. 2 is a schematic structural diagram of another RFID test shielding box provided in the embodiment of the present invention;
fig. 3 is a schematic structural diagram of an RFID test shielding system provided in an embodiment of the present invention.
The reference signs are:
1-opening; 2-inner side corresponding to the opening of the shielding box; 3-a first interface;
4-a second interface; 5-a second test antenna; 6-first test antenna.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
Please refer to fig. 1, which is a schematic structural diagram of an RFID test shielding box according to an embodiment of the present invention, including a shielding box body, where the shielding box body is provided with a first test antenna 6 and a second test antenna 5, the first test antenna 6 is connected to an RFID device to be tested, the first test antenna 6 is used for transmitting a signal, and the second test antenna 6 is used for receiving a signal; the shielding box further comprises a first interface 3 and a second interface 4, the first interface 3 is used for being connected with a computer, the computer is used for sending a control signal to the RFID equipment to be tested, the second interface 4 is used for being connected with a frequency spectrograph, and the frequency spectrograph is used for analyzing a signal received by the second testing antenna.
Specifically, an RFID electronic tag, a first test antenna and a second test antenna are arranged in the shielding box, wherein an RFID reader-writer, namely RFID equipment to be tested, is equipment for reading the RFID electronic tag; the antenna is responsible for amplifying and radiating signals transmitted by the RFID reader-writer, two antennas are needed in the embodiment of the utility model, the first testing antenna is connected with the RFID equipment to be tested, the first testing antenna is responsible for radiating the signals of the RFID equipment to be tested, and the second testing antenna is used for receiving the signals radiated by the RFID equipment to be tested and transmitting the signals to the frequency spectrograph. The second test antenna is arranged on one side in the shielding box body.
Specifically, an RFID tag is further disposed in the shielding box, and the RFID tag is disposed on the rear side in the shielding box, as shown in fig. 2, 1 is an opening of the shielding box, and 2 is a rear side corresponding to the opening, but may also be disposed at any position in the shielding box.
The inner side of the shielding box is also provided with a first interface and a second interface, the first interface is at least a network port or a serial port and is used for being connected with a computer, and the second interface is connected with a frequency spectrograph.
The shielding box may be of any shape, and in the present invention, the shielding box may be preferably a rectangular parallelepiped or a square, and for example, the size of the shielding wire may be 0.5m × 0.5 m.
Optionally, a shielding material is disposed in the shielding box body, and the shielding material includes one or more of a metal plate, a metal mesh, and a radio wave shielding film.
Optionally, an opening is provided at one side of the shielding box body, and the opening is used for placing or taking out the RFID device to be tested.
The embodiment of the utility model reduces the product testing cost, reduces the product development cost and increases the product competitiveness; the product development progress is shortened, and problems are found and solved in time in the research and development process; the scheme is adopted in the production test stage, so that the interference of the surrounding environment can be reduced, and the test accuracy and the product consistency are ensured; the device is simple in implementation mode and strong in applicability, and can be used for production test of all RFID readers; and is easily forensics when infringed.
Fig. 3 is a schematic structural diagram of an RFID test shielding system provided in an embodiment of the present invention, as shown in fig. 3, including: an RFID test shielded box, a computer, a spectrometer and an RFID device to be tested as described above;
the computer is used for sending a control signal to the RFID equipment to be tested and interacting with the RFID equipment to be tested through preset demonstration software;
the RFID test shielding box is used for receiving a control signal sent by the computer, generating a radiation signal through the first test antenna and the second test antenna, and sending the radiation signal to the frequency spectrograph;
the frequency spectrograph is used for analyzing the radiation signal.
Specifically, the device comprises the following parts: the computer is a computer, the RFID reader-writer is RFID equipment to be tested, the antennas (two), the shielding box and the frequency spectrograph.
The computer is used for controlling the RFID reader-writer, interacting with the RFID reader-writer through demonstration software on the computer, sending a command to the RFID reader-writer and receiving data returned by the reader-writer at the same time so as to judge the state of the reader-writer;
the RFID reader-writer is equipment for reading the RFID electronic tag; the antenna is responsible for amplifying and radiating signals transmitted by the RFID reader-writer, two antennas are required in the RFID reader-writer, one antenna is responsible for radiating the signals of the reader-writer, and the other antenna is responsible for receiving the signals radiated by the reader-writer and transmitting the signals to the frequency spectrograph; the shielding box is a device for shielding external interference signals, and the cleanness of an electromagnetic environment in the box is ensured; the spectrometer is an instrument responsible for analyzing the frequency and amplitude of a signal, and the cleanliness of the signal can be judged through the spectrometer.
The working state of the RFID reader-writer is consistent with that of darkroom testing, namely, the RFID reader-writer is provided with an antenna for emission, a receiving antenna, namely, a second testing antenna is replaced by a self-made antenna testing clamp (or an externally purchased common rod antenna), and a radiation receiver is replaced by a frequency spectrograph. Due to the limitation of the noise level at the bottom of the frequency spectrograph, the distance between the to-be-tested machine and the receiving antenna needs to be adjusted according to the actual situation, and the distance between the two antennas is 60cm in the current test. Placed in a shielding box to reduce external interference. The experiment needs a comparison machine which is a machine which passes the test of the external laboratory, the machine is used as a reference machine, the research and development of a prototype is guided to be rectified and modified according to the test data of the reference machine, and the external mechanism darkroom test is carried out after the level of the reference prototype is reached.
In the technical scheme provided by the embodiment of the utility model, the RFID device testing device comprises a shielding box body, wherein the shielding box body is provided with a first testing antenna and a second testing antenna, the first testing antenna is connected with the RFID device to be tested, the first testing antenna is used for transmitting signals, and the second testing antenna is used for receiving signals; the shielding box further comprises a first interface and a second interface, the first interface is used for being connected with a computer, the computer is used for sending a control signal to the RFID equipment to be tested, the second interface is used for being connected with a frequency spectrograph, and the frequency spectrograph is used for analyzing signals received by the second testing antenna, so that the construction cost is low, and the testing period is short.
The above examples are only intended to illustrate the technical solution of the present invention, but not to limit it; although the present 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 solutions described in the foregoing embodiments may still be modified, or some technical features may be equivalently replaced; and such modifications or substitutions do not depart from the spirit and scope of the corresponding technical solutions of the embodiments of the present invention.
Claims (10)
1. An RFID test shielded cell which characterized in that: the RFID device testing system comprises a shielding box body, wherein the shielding box body is provided with a first testing antenna and a second testing antenna, the first testing antenna is connected with an RFID device to be tested, the first testing antenna is used for transmitting signals, and the second testing antenna is used for receiving signals; the shielding box further comprises a first interface and a second interface, the first interface is used for being connected with a computer, the computer is used for sending a control signal to the RFID equipment to be tested, the second interface is used for being connected with a frequency spectrograph, and the frequency spectrograph is used for analyzing the signal received by the second testing antenna.
2. The RFID test shielding box according to claim 1, wherein an RFID tag is further arranged in the shielding box body, and the RFID tag is arranged on the rear side in the shielding box body.
3. The RFID test shielded enclosure of claim 1, wherein the second test antenna is disposed on a side within the shielded enclosure.
4. The RFID test shielded box of claim 1, wherein the shielded box body is a rectangular parallelepiped.
5. The RFID test shielded box of claim 1, wherein the shielded box body is square.
6. The RFID test shielded box of claim 1, wherein shielding material is disposed within the shielded box body, the shielding material including one or more of a metal plate, a metal mesh, and a radio wave shielding film.
7. The RFID test shielding box of any one of claims 4 or 5, wherein an opening is provided at one side of the shielding box body, and the opening is used for putting in or taking out the RFID device to be tested.
8. The RFID test shielded box of claim 1, wherein the first interface comprises at least one of a serial port or a web port.
9. The RFID test shielded box of claim 1, wherein the second interface is a serial port.
10. An RFID test shielding system, characterized by comprising the RFID test shielding box of any one of claims 1 to 9, a computer, a spectrometer and an RFID device to be tested;
the computer is used for sending a control signal to the RFID equipment to be tested and interacting with the RFID equipment to be tested through preset demonstration software;
the RFID test shielding box is used for receiving a control signal sent by the computer, generating a radiation signal through the first test antenna and the second test antenna, and sending the radiation signal to the frequency spectrograph;
the frequency spectrograph is used for analyzing the radiation signal.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121404951.7U CN215641428U (en) | 2021-06-23 | 2021-06-23 | RFID test shielding box and system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121404951.7U CN215641428U (en) | 2021-06-23 | 2021-06-23 | RFID test shielding box and system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN215641428U true CN215641428U (en) | 2022-01-25 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202121404951.7U Active CN215641428U (en) | 2021-06-23 | 2021-06-23 | RFID test shielding box and system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN215641428U (en) |
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2021
- 2021-06-23 CN CN202121404951.7U patent/CN215641428U/en active Active
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