CN105553577A - Portable RFID (Radio Frequency Identification Device) product parameter testing device - Google Patents
Portable RFID (Radio Frequency Identification Device) product parameter testing device Download PDFInfo
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- CN105553577A CN105553577A CN201510990045.2A CN201510990045A CN105553577A CN 105553577 A CN105553577 A CN 105553577A CN 201510990045 A CN201510990045 A CN 201510990045A CN 105553577 A CN105553577 A CN 105553577A
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Abstract
The invention provides a portable RFID (Radio Frequency Identification Device) product parameter testing device. The portable RFID product parameter testing device comprises a coupling interface, a power detection device and a control unit, wherein the coupling interface is suitable to be connected to a reader and an antenna, and is used for communicating the reader with the antenna and acquiring an incident power signal transmitted by the reader and a reflected power signal received by the antenna; the power detection device is connected with the coupling interface, and is suitable for converting the incident power signal into an incident voltage value, and converting the reflected power signal into a reflected voltage value, and outputting the incident voltage value and the reflected voltage value; and the control unit is suitable for receiving the incident voltage value and the reflected voltage value, performing calculation to obtain a parameter including at least one of transmitting power and transmitting frequency of the reader and a standing-wave ratio of an antenna end, and outputting the parameter. The portable RFID product parameter testing device has the characteristics of online detection function, arrangement of an embedded battery and an LCD display screen, convenience in field maintenance, high measuring accuracy and the like.
Description
Technical field
The present invention relates to radio communication detection technique field, particularly relate to a kind of portable RF ID product parameters testing apparatus.
Background technology
Nowadays, RFID technique is applied to all trades and professions.Conventional rfid system comprises following four parts: label, antenna, reader and connect the radio frequency cable of antenna and reader, for ensureing that the whole rfid system moment is all in good working order, need irregularly to detect the launching target (power, frequency) of reader and the matching degree (standing-wave ratio) of antenna end, to pinpoint the problems fault also process in time.Current, more existing producers are integrated with some power, standing-wave ratio testing circuit in reader, but check that corresponding detection data need external computer (and needing to configure corresponding testing software), while seldom having equipment to accomplish reading tag in addition, monitor the Changing Pattern of corresponding index.
In addition, the professional equipment of the matching degree (standing-wave ratio) of independent launching target (power, frequency) and antenna end for detecting reader is not also had in prior art, due to the Data Detection between reader and antenna often out of doors, utilize prior art or other means to carry out Data Detection, although can testing result be realized, but efficiency is often not high, and operationally bothers completely yet.
Summary of the invention
The shortcoming of prior art in view of the above, the object of the present invention is to provide a kind of portable RF ID product parameters testing apparatus, for solving prior art complicated operation and the not high problem of efficiency when detecting matching degree (standing-wave ratio) of the launching target (power, frequency) of reader and antenna end.
For achieving the above object and other relevant objects, the invention provides following technical scheme:
A kind of portable RF ID product parameters testing apparatus, comprising: coupling interface, is suitable for being connected on reader and antenna, is communicated with by reader and obtains the incident power signal sent through reader and the reflected power signal received through antenna with antenna; Power detection device, connects described coupling interface, is suitable for described incident power signal being converted to incident voltage value and described reflected power signal being converted to reflected voltage value, and is exported; Control unit, is suitable for receiving described incident voltage value and reflected voltage value, to carry out calculating in the standing-wave ratio of transmitting power and tranmitting frequency and the antenna end comprising reader the parameter of at least one, and is exported.
Preferably, described power detection device comprises:
Incident voltage detection module, comprises a π and to decline circuit unit and the first detection unit, and the described π circuit unit that declines is connected on coupling interface, is suitable for being done by incident power signal after impedance matching regulates exporting the first detection unit to; Described first detection unit connects a π and to decline circuit unit, is suitable for first via incident power signal being converted to corresponding incident voltage value, and is exported;
Reflected voltage detection module, comprise the 2nd π to decline circuit unit and the second detection unit, the described 2nd π circuit unit that declines is connected to coupling interface, is suitable for the reflected power signal received from antenna accessed through coupling interface to do after impedance matching regulates to export the second detection unit to; Second detection unit connects the 2nd π and to decline circuit unit, is suitable for reflected power signal being converted to corresponding reflected voltage value, and is exported.
Preferably, described power detection device also comprises:
Power distributing unit, input is connected on coupling interface, the incident power signal be suitable for the reader accessed by coupling interface sends is divided at least two-way incident power signal, wherein a road incident power signal exports incident voltage detection module to, and another road incident power signal exports frequency division voltage detection module to;
Frequency division voltage detection module, comprise the 3rd π to decline circuit unit and frequency detecting unit, the described 3rd π circuit unit that declines is connected in power distributing unit, is suitable at least two-way incident power signal Zhong mono-tunnel incident power signal to do after impedance matching regulates to export frequency detecting unit to; Frequency detecting unit connects the 3rd π and to decline circuit unit, is suitable for the second tunnel incident power signal being converted to corresponding frequency division voltage value, and is exported.
Preferably, described power distributing unit is power splitter.
Preferably, also comprise display unit, be connected to control unit, be suitable at least display parameters test result.
Preferably, also comprise: communications interface unit, be connected to control unit, be suitable for providing the interface carrying out with upper layer software (applications) communicating.
Preferably, described communications interface unit can comprise USB-B type interface and USB RS 232 interface.
Preferably, also comprise input unit, be connected to control unit, be adapted to provide Man Machine Interface.
Preferably, described control unit is processor.
Preferably, also comprising power subsystem, be at least connected to control unit, being adapted to as respectively needing electric module to provide power supply in device.
Hinge structure, portable RF ID product parameters testing apparatus provided by the invention has on-line checkingi function (namely do not affect rfid system normally work when), internal battery and LCD display, is convenient to on-site maintenance, certainty of measurement high.
Accompanying drawing explanation
Fig. 1 is shown as the result of use figure of portable RF ID product parameters testing apparatus provided by the invention;
Fig. 2 is shown as portable RF ID product parameters testing apparatus of the present invention schematic diagram in one embodiment;
Fig. 3 is shown as power detection device of the present invention enforcement schematic diagram in one embodiment;
Fig. 4 is shown as the schematic diagram of portable RF ID product parameters testing apparatus of the present invention in another specific embodiment.
Drawing reference numeral explanation
100 portable RF ID product parameters testing apparatuss
110 coupling interfaces
120 power detection devices
121 incident voltage detection modules
122 reflected voltage detection modules
123 frequency division voltage detection modules
124 power distributing unit
130 control units
140 input units
150 display units
160 communications interface units
170 power subsystems
200 readers
300 antennas
Embodiment
Below by way of specific instantiation, embodiments of the present invention are described, those skilled in the art the content disclosed by this specification can understand other advantages of the present invention and effect easily.The present invention can also be implemented or be applied by embodiments different in addition, and the every details in this specification also can based on different viewpoints and application, carries out various modification or change not deviating under spirit of the present invention.It should be noted that, when not conflicting, the feature in following examples and embodiment can combine mutually.
It should be noted that, the diagram provided in following examples only illustrates basic conception of the present invention in a schematic way, then only the assembly relevant with the present invention is shown in graphic but not component count, shape and size when implementing according to reality is drawn, it is actual when implementing, and the kenel of each assembly, quantity and ratio can be a kind of change arbitrarily, and its assembly layout kenel also may be more complicated.
Ask for an interview Fig. 1, the invention provides a kind of result of use figure of portable RF ID product parameters testing apparatus, as shown in the figure, this RFID product parameters tester is for being connected to the cable between reader and antenna, the launching target (power, frequency) of reader and the matching degree (standing-wave ratio) of antenna end are detected, to pinpoint the problems fault also process in time.RFID product parameters tester provided by the invention can not affect the work between reader and antenna when detecting, can realize the formerly detection to RFID product parameters.
Composition graphs 2 again, show a kind of portable RF ID product parameters testing apparatus schematic diagram in one embodiment, as shown in the figure, this portable RF ID product parameters testing apparatus comprises coupling interface, power detection device and control unit, wherein, coupling interface is suitable for being connected on reader and antenna, is communicated with by reader and obtains the incident power signal sent through reader and the reflected power signal received through antenna with antenna; Power detection device connects described coupling interface, is suitable for described incident power signal being converted to incident voltage value and described reflected power signal being converted to reflected voltage value, and is exported; Control unit receives described incident voltage value and reflected voltage value, to carry out calculating in the standing-wave ratio of transmitting power and tranmitting frequency and the antenna end comprising reader the parameter of at least one, and is exported.In the present embodiment, utilize coupling interface to access transmitting and the reflected signal of antenna of reader, ensure to keep operable communication between reader and antenna simultaneously, realize the on-line checkingi of RFID product parameters.
In concrete enforcement, coupling interface can be four port radiofrequency signal coupling units, and more specifically, coupling interface can be a directional coupler.
Refer to Fig. 3, give power detection device enforcement schematic diagram in one embodiment, as shown in the figure, power detection device can comprise power distributing unit, a π declines circuit unit, the 2nd π declines circuit unit, the 3rd π declines circuit unit, the first detection unit, the second detection unit and frequency detecting unit, wherein, the input of power distributing unit is connected on coupling interface, and the incident power signal be suitable for the reader accessed by coupling interface sends is divided at least two-way incident power signal; An incident voltage detection module can be formed by decline circuit unit and the first detection unit of a π, the one π circuit unit that declines is connected in power distributing unit, be suitable for the first via incident power signal at least two-way incident power signal being done after impedance matching regulates and export the first detection unit to, first detection unit connects a π and to decline circuit unit, be suitable for first via incident power signal being converted to corresponding incident voltage value, and exported.In addition, a reflected voltage detection module can be formed by decline circuit unit and the second detection unit of the 2nd π, the 2nd π circuit unit that declines is connected to coupling interface, be suitable for after the reflected power signal of antenna reception does impedance matching adjustment, exporting the second detection unit by what access through coupling interface to, second detection unit connects the 2nd π and to decline circuit unit, be suitable for reflected power signal being converted to corresponding reflected voltage value, and exported; Further, a frequency division voltage detection module can also be formed by decline circuit unit and frequency detecting unit of the 3rd π, the 3rd π circuit unit that declines is connected in power distributing unit, be suitable for the second tunnel incident power signal at least two-way incident power signal being done after impedance matching regulates and export frequency detecting unit to, frequency detecting unit connects the 3rd π and to decline circuit unit, be suitable for the second tunnel incident power signal being converted to corresponding frequency division voltage value, and exported.
It will be appreciated that, obtain in other embodiment at above-described embodiment, power detection device at least comprises incident voltage detection module and reflected voltage detection module, incident voltage value and reflected voltage value is obtained by these two modules, and then the detection realized for antenna end standing-wave ratio, and frequency division voltage detection module can be the structure preferably implemented, for providing more comprehensive parameter testing function.Simultaneously, it is also to be appreciated that, if power detection device only includes incident voltage detection module and reflected voltage detection module for realizing incident voltage value and the detection of reflected voltage value, so can not demand factor allocation units, but the circuit unit that declined by a π is connected directly between on coupling interface; Only when at least needing to carry out incident voltage value and the detection of frequency division voltage value, just incoming signal is divided into multiple signals to detect by required power allocation units.
In concrete enforcement, power distributing unit can adopt power splitter, one π circuit unit, the 2nd π circuit unit, the 3rd π circuit unit that declines that declines that declines can adopt identical or not identical π to decline circuit, and the decline form of circuit of π can be circuit structure or integrated circuit etc.
Again see Fig. 4, give a kind of execution mode schematic diagram of portable RF ID product parameters testing apparatus, as shown in the figure, can also display unit be comprised in the present embodiment, be connected to control unit, be suitable at least display parameters test result, such as standing-wave ratio; Can certainly be used for showing some parameters produced in test process, such as incident voltage value, reflected voltage value and frequency division voltage value etc.
Further, composition graphs 4, can also comprise communications interface unit, be connected to control unit, is suitable for providing the interface carrying out with upper layer software (applications) communicating.In concrete enforcement, directly by communications interface unit, portable RF ID product parameters testing apparatus can be communicated with upper layer software (applications), with by the parameter that obtains of test or parametric results be sent to (supervisory control system of such as Surveillance center) in upper layer software (applications).
In concrete enforcement, described communications interface unit can comprise USB-B type interface and USB RS 232 interface.
Further, composition graphs 4, input unit can also be comprised, be connected to control unit, be adapted to provide Man Machine Interface, portable RF ID product parameters testing apparatus can be connected by ancillary equipment like this, and by input, portable RF ID product parameters testing apparatus is arranged or controlled.
Further, composition graphs 4, can also comprise power subsystem, at least be connected to control unit, is adapted to as respectively needing electric module to provide power supply in device.
In conjunction with above-described embodiment description of this invention, will elaborate to workflow of the present invention below.
Workflow is as follows:
1, composition graphs 1, is concatenated in reader to be measured and radio-frequency antenna by portable RF ID product parameters testing apparatus;
2, composition graphs 4, control reader and send radiofrequency signal, after incoming signal enters portable RF ID product parameters testing apparatus, first through coupling unit, a road signal is directly sent to radio-frequency antenna, and another road signal coupling is in power distributing unit;
3, incoming signal is after power distributing unit, and a road signal enters a π and to decline circuit, and another road enters the 3rd π and to decline circuit;
4, signal, after a π declines circuit, enters in the first detection unit, then by the first detection unit, incoming signal is converted to corresponding incident voltage value V
incident, then enter control unit;
5, signal, after a π declines circuit, enters in frequency detecting unit, then by frequency detecting unit, incoming signal is converted to corresponding frequency division voltage value V
frequency, then enter control unit;
6, after the reflected signal of antenna end enters portable RF ID product parameters testing apparatus, one tunnel is reflected back the input of portable RF ID product parameters testing apparatus, one road is coupled to the 2nd π and is declined in circuit, then enter the second detection unit, and by the second detection unit, incoming signal is converted to corresponding reflected voltage value V
reflection, then enter control unit;
7, control unit according to particular kind of relationship formula and convertible go out corresponding incident power, reflection power and incoming signal frequency, and real-time standing-wave ratio size can be calculated according to incident power and transmitting power;
8, input unit is made up of key circuit, and Main Function is control appliance machine open/close, the power unit of display switches and LCD display resolution regulates;
9, display unit will show below parameter intuitively: frequency values, incident power value, reflection power value, standing wave ratio, battery information etc.;
10, interface unit provides the RS232 interface of portable RF ID product parameters testing apparatus and upper layer software (applications) communication, and charging inlet.
In sum, the present invention present solution provides a kind of Portable comprehensive tester for RFID product, there is on-line checkingi function (namely do not affect rfid system normally work when), internal battery and LCD display, be convenient to on-site maintenance, certainty of measurement high.So the present invention effectively overcomes various shortcoming of the prior art and tool high industrial utilization.
Above-described embodiment is illustrative principle of the present invention and effect thereof only, but not for limiting the present invention.Any person skilled in the art scholar all without prejudice under spirit of the present invention and category, can modify above-described embodiment or changes.Therefore, such as have in art usually know the knowledgeable do not depart from complete under disclosed spirit and technological thought all equivalence modify or change, must be contained by claim of the present invention.
Claims (10)
1. a portable RF ID product parameters testing apparatus, is characterized in that, comprising:
Coupling interface, is suitable for being connected on reader and antenna, is communicated with by reader and obtains the incident power signal sent through reader and the reflected power signal received through antenna with antenna;
Power detection device, connects described coupling interface, is suitable for described incident power signal being converted to incident voltage value and described reflected power signal being converted to reflected voltage value, and is exported;
Control unit, is suitable for receiving described incident voltage value and reflected voltage value, to carry out calculating in the standing-wave ratio of transmitting power and tranmitting frequency and the antenna end comprising reader the parameter of at least one, and is exported.
2. portable RF ID product parameters testing apparatus according to claim 1, it is characterized in that, described power detection device comprises:
Incident voltage detection module, comprises a π and to decline circuit unit and the first detection unit, and the described π circuit unit that declines is connected on coupling interface, is suitable for being done by incident power signal after impedance matching regulates exporting the first detection unit to; Described first detection unit connects a π and to decline circuit unit, is suitable for first via incident power signal being converted to corresponding incident voltage value, and is exported.
Reflected voltage detection module, comprise the 2nd π to decline circuit unit and the second detection unit, the described 2nd π circuit unit that declines is connected to coupling interface, is suitable for the reflected power signal received from antenna accessed through coupling interface to do after impedance matching regulates to export the second detection unit to; Second detection unit connects the 2nd π and to decline circuit unit, is suitable for reflected power signal being converted to corresponding reflected voltage value, and is exported.
3. portable RF ID product parameters testing apparatus according to claim 1, it is characterized in that, described power detection device also comprises:
Power distributing unit, input is connected on coupling interface, the incident power signal be suitable for the reader accessed by coupling interface sends is divided at least two-way incident power signal, wherein a road incident power signal exports incident voltage detection module to, and another road incident power signal exports frequency division voltage detection module to;
Frequency division voltage detection module, comprise the 3rd π to decline circuit unit and frequency detecting unit, the described 3rd π circuit unit that declines is connected in power distributing unit, is suitable at least two-way incident power signal Zhong mono-tunnel incident power signal to do after impedance matching regulates to export frequency detecting unit to; Frequency detecting unit connects the 3rd π and to decline circuit unit, is suitable for the second tunnel incident power signal being converted to corresponding frequency division voltage value, and is exported.
4. portable RF ID product parameters testing apparatus according to claim 1, it is characterized in that, described power distributing unit is power splitter.
5. portable RF ID product parameters testing apparatus according to claim 1, is characterized in that, also comprise:
Display unit, is connected to control unit, is suitable at least display parameters test result.
6. portable RF ID product parameters testing apparatus according to claim 1, is characterized in that, also comprise:
Communications interface unit, is connected to control unit, is suitable for providing the interface carrying out with upper layer software (applications) communicating.
7. portable RF ID product parameters testing apparatus according to claim 6, is characterized in that, described communications interface unit can comprise USB-B type interface and USB RS 232 interface.
8. portable RF ID product parameters testing apparatus according to claim 1, is characterized in that, also comprise:
Input unit, is connected to control unit, is adapted to provide Man Machine Interface.
9. portable RF ID product parameters testing apparatus according to claim 1, is characterized in that, also comprise:
Power subsystem, is at least connected to control unit, is adapted to as respectively needing electric module to provide power supply in device.
10. the portable RF ID product parameters testing apparatus according to claim 1-9, it is characterized in that, described control unit is processor.
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| CN201510990045.2A CN105553577B (en) | 2015-12-25 | 2015-12-25 | Portable RF ID product parameters test device |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201510990045.2A CN105553577B (en) | 2015-12-25 | 2015-12-25 | Portable RF ID product parameters test device |
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| CN105553577A true CN105553577A (en) | 2016-05-04 |
| CN105553577B CN105553577B (en) | 2019-01-11 |
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Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN101285858A (en) * | 2008-05-29 | 2008-10-15 | 重庆市易联数码科技有限公司 | Radio frequency stationary wave and power simple detection device based on UHF frequency range |
| CN201163410Y (en) * | 2008-03-20 | 2008-12-10 | 重庆微标科技有限公司 | RFID reader-writer with system power self-checking and self-protection function |
| WO2010104308A2 (en) * | 2009-03-09 | 2010-09-16 | Lg Innotek Co., Ltd. | Radio frequency identification transmitting and receiving device |
| CN102236069A (en) * | 2010-04-27 | 2011-11-09 | 中芯国际集成电路制造(上海)有限公司 | Test system and test method |
| CN104991124A (en) * | 2015-07-06 | 2015-10-21 | 上海斐讯数据通信技术有限公司 | Characteristic impedance calibration system and test method |
-
2015
- 2015-12-25 CN CN201510990045.2A patent/CN105553577B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201163410Y (en) * | 2008-03-20 | 2008-12-10 | 重庆微标科技有限公司 | RFID reader-writer with system power self-checking and self-protection function |
| CN101285858A (en) * | 2008-05-29 | 2008-10-15 | 重庆市易联数码科技有限公司 | Radio frequency stationary wave and power simple detection device based on UHF frequency range |
| WO2010104308A2 (en) * | 2009-03-09 | 2010-09-16 | Lg Innotek Co., Ltd. | Radio frequency identification transmitting and receiving device |
| CN102236069A (en) * | 2010-04-27 | 2011-11-09 | 中芯国际集成电路制造(上海)有限公司 | Test system and test method |
| CN104991124A (en) * | 2015-07-06 | 2015-10-21 | 上海斐讯数据通信技术有限公司 | Characteristic impedance calibration system and test method |
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Effective date of registration: 20210426 Address after: 401121 No. 106, West Jinkai Avenue, Yubei District, Chongqing Patentee after: CHONGQING MICROID TECHNOLOGY Co.,Ltd. Patentee after: CIVIL AVIATION LOGISTICS TECHNOLOGY Co.,Ltd. Address before: The middle section of Mount Huangshan road 401121 Chongqing City No. 5 Yubei District South Mercury Technology Building 4 storey office building No. 6 Patentee before: CHONGQING MICROID TECHNOLOGY Co.,Ltd. |
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