CN105553577B - Portable RF ID product parameters test device - Google Patents
Portable RF ID product parameters test device Download PDFInfo
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- CN105553577B CN105553577B CN201510990045.2A CN201510990045A CN105553577B CN 105553577 B CN105553577 B CN 105553577B CN 201510990045 A CN201510990045 A CN 201510990045A CN 105553577 B CN105553577 B CN 105553577B
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Abstract
The present invention provides a kind of portable RF ID product parameters test device, including coupling interface, is adapted to be attached on reader and antenna, reader is connected to antenna and is obtained the incident power signal sent through reader and through the received reflected power signal of antenna；Power detection device connects the coupling interface, suitable for the incident power signal is converted to incident voltage value and the reflected power signal is converted to reflected voltage value, and is exported；Control unit is suitable for receiving the incident voltage value and reflected voltage value, the parameter of at least one in the standing-wave ratio of the transmission power including reader and tranmitting frequency and antenna end is calculated, and exported.The present invention has the function of on-line checking, internal battery and LCD display, convenient for on-site maintenance, measurement accuracy is high the features such as.
Description
Technical field
The present invention relates to radio communication detection technique fields, test and fill more particularly to a kind of portable RF ID product parameters
It sets.
Background technique
Nowadays, RFID technique has been applied to all trades and professions.Conventional RFID system includes following four part: label, is read antenna
It reads device and connects the radio-frequency cable of antenna and reader, to ensure the entire RFID system moment all in good work shape
State needs irregularly to examine the matching degree (standing-wave ratio) of the launching target of reader (power, frequency) and antenna end
It surveys, failure and is handled in time to find the problem.Currently, have some producers and be integrated with some power, standing wave in reader
Than detection circuit, but check that corresponding detection data needs external computer (and needing to configure corresponding test software), in addition seldom
The changing rule of corresponding index is monitored while having equipment to accomplish to read label.
In addition, there are no individually for detecting the launching target (power, frequency) and day of reader in the prior art
The professional equipment of the matching degree (standing-wave ratio) of line end, often outdoors due to the Data Detection between reader and antenna,
Data Detection is carried out using the prior art or other means, although can be realized testing result, but efficiency is not often high,
And it is operationally also completely troublesome.
Summary of the invention
In view of the foregoing deficiencies of prior art, the purpose of the present invention is to provide a kind of portable RF ID product parameters
Test device, for solving the prior art in the launching target (power, frequency) of detection reader and the matching journey of antenna end
Spend problem complicated for operation and inefficient when (standing-wave ratio).
In order to achieve the above objects and other related objects, the present invention the following technical schemes are provided:
A kind of portable RF ID product parameters test device, comprising: coupling interface is adapted to be attached to reader and antenna
On, reader is connected to antenna and is obtained the incident power signal sent through reader and is believed through the received reflection power of antenna
Number；Power detection device connects the coupling interface, suitable for by the incident power signal be converted to incident voltage value, with
And the reflected power signal is converted to reflected voltage value, and exported；Control unit, suitable for entering radio described in reception
The standing-wave ratio of transmission power and tranmitting frequency and antenna end including reader is calculated in pressure value and reflected voltage value
In at least one parameter, and exported.
Preferably, the power detection device includes:
Incident voltage detection module, including the first π decline circuit unit and the first detection unit, and the first π declines circuit list
Member is connected on coupling interface, suitable for exporting after incident power signal is done impedance matching adjusting to the first detection unit；It is described
First detection unit connects the first π and declines circuit unit, suitable for first via incident power signal is converted into corresponding incident voltage
Value, and exported；
Reflected voltage detection module, including the 2nd π decline circuit unit and the second detection unit, and the 2nd π declines circuit list
Member is connected to coupling interface, does impedance matching adjusting from the received reflected power signal of antenna suitable for access coupled interface
After export to the second detection unit；Second detection unit connects the 2nd π and declines circuit unit, suitable for reflected power signal to be converted into
Corresponding reflected voltage value, and exported.
Preferably, the power detection device further include:
Power distributing unit, input are connected on coupling interface, what the reader suitable for will be accessed by coupling interface was sent
Incident power signal is divided at least two-way incident power signal, wherein incident power signal is exported to incident voltage detection mould all the way
Block, another way incident power signal are exported to frequency dividing voltage detection module；
Voltage detection module is divided, including the 3rd π declines circuit unit and frequency detecting unit, the 3rd π declines circuit list
Member is connected in power distributing unit, suitable for the signal of incident power all the way at least two-way incident power signal is done impedance
With output after adjusting to frequency detecting unit；Frequency detecting unit connects the 3rd π and declines circuit unit, is suitable for the second tunnel incidence function
Rate signal is converted into corresponding frequency dividing voltage value, and is exported.
Preferably, the power distributing unit is power splitter.
Preferably, further include display unit, be connected to control unit, be suitable at least display parameters test result.
Preferably, further includes: communications interface unit is connected to control unit, is adapted to provide for being communicated with upper layer software (applications)
Interface.
Preferably, the communications interface unit may include USB-B type interface and USB RS 232 interface.
Preferably, further include input unit, be connected to control unit, be adapted to provide man-machine interactive interface.
Preferably, described control unit is processor.
Preferably, further include power supply unit, be attached at least to control unit, be adapted to respectively to need electric module to provide in device
Power supply.
Compared with the prior art, portable RF ID product parameters test device provided by the invention has the function of on-line checking
(in the case where not influencing RFID system normal work), internal battery and LCD display, are convenient for on-site maintenance, measurement accuracy
The features such as high.
Detailed description of the invention
Fig. 1 is shown as the using renderings of portable RF ID product parameters test device provided by the invention；
Fig. 2 is shown as the schematic diagram of portable RF ID product parameters test device of the present invention in one embodiment；
Fig. 3 is shown as the implementation principle figure of power detection device of the present invention in one embodiment；
Fig. 4 is shown as the schematic diagram of portable RF ID product parameters test device of the present invention in another embodiment.
Drawing reference numeral explanation
100 portable RF ID product parameters test devices
110 coupling interfaces
120 power detection devices
121 incident voltage detection modules
122 reflected voltage detection modules
123 frequency dividing voltage detection modules
124 power distributing units
130 control units
140 input units
150 display units
160 communications interface units
170 power supply units
200 readers
300 antennas
Specific embodiment
Illustrate embodiments of the present invention below by way of specific specific example, those skilled in the art can be by this specification
Other advantages and efficacy of the present invention can be easily understood for disclosed content.The present invention can also pass through in addition different specific realities
The mode of applying is embodied or practiced, the various details in this specification can also based on different viewpoints and application, without departing from
Various modifications or alterations are carried out under spirit of the invention.It should be noted that in the absence of conflict, following embodiment and implementation
Feature in example can be combined with each other.
It should be noted that illustrating the basic structure that only the invention is illustrated in a schematic way provided in following embodiment
Think, only shown in schema then with related component in the present invention rather than component count, shape and size when according to actual implementation
Draw, when actual implementation kenel, quantity and the ratio of each component can arbitrarily change for one kind, and its assembly layout kenel
It is likely more complexity.
Referring to Fig.1, the present invention provides a kind of using renderings of portable RF ID product parameters test device, as schemed institute
Show, which is used for the cable being connected between reader and antenna, the transmitting to reader
The matching degree (standing-wave ratio) of index (power, frequency) and antenna end is detected, and failure and is located in time to find the problem
Reason.RFID product parameters tester provided by the invention will not influence the work between reader and antenna when being detected,
The first detection to RFID product parameters may be implemented.
In conjunction with Fig. 2, a kind of principle of portable RF ID product parameters test device in one embodiment is shown
Figure, as shown, portable RF ID product parameters test device includes coupling interface, power detection device and control unit,
Wherein, coupling interface is adapted to be attached on reader and antenna, and reader is connected to antenna and is obtained through reader transmission
Incident power signal and through the received reflected power signal of antenna；Power detection device connects the coupling interface, is suitable for institute
Incident power signal is stated to be converted to incident voltage value and the reflected power signal is converted to reflected voltage value, and
It is exported；Control unit receives the incident voltage value and reflected voltage value, and the transmitting including reader is calculated
The parameter of at least one in the standing-wave ratio of power and tranmitting frequency and antenna end, and exported.In this present embodiment, it utilizes
Coupling interface accesses the reflection signal of the transmitting signal and antenna of reader, while guaranteeing to keep work between reader and antenna
It is connected to, realizes the on-line checking of RFID product parameters.
In specific implementation, coupling interface can be a four port radiofrequency signal coupling units, more specifically for, coupling
Splice grafting mouth can be a directional coupler.
Fig. 3 is referred to, the implementation principle figure of power detection device in one embodiment is given, as shown, power is examined
Surveying device may include that power distributing unit, the first π decline circuit unit, the 3rd π of circuit unit, the 2nd π that decline decline circuit unit, the
One detection unit, the second detection unit and frequency detecting unit, wherein the input of power distributing unit is connected to coupling interface
On, the incident power signal suitable for sending the reader accessed by coupling interface is divided at least two-way incident power signal；By
First π declines circuit unit and the first detection unit may be constructed an incident voltage detection module, and the first π circuit unit that declines is connected to
In power distributing unit, suitable for the first via incident power signal at least two-way incident power signal is done impedance matching adjusting
After export to the first detection unit, the first detection unit connects the first π and declines circuit unit, is suitable for first via incident power signal
It is converted into corresponding incident voltage value, and is exported.It can be with structure in addition, declining circuit unit and the second detection unit by the 2nd π
At a reflected voltage detection module, the 2nd π circuit unit that declines is connected to coupling interface, suitable for by coupled interface access from day
Output to the second detection unit, the second detection unit connects the 2nd π after the received reflected power signal of line does impedance matching adjusting
Decline circuit unit, suitable for reflected power signal is converted into corresponding reflected voltage value, and is exported；Further, may be used also
To decline circuit unit by the 3rd π and frequency detecting unit is constituted a frequency dividing voltage detection module, the 3rd π circuit unit that declines is connected to
In power distributing unit, suitable for the second tunnel incident power signal at least two-way incident power signal is done impedance matching adjusting
After export to frequency detecting unit, frequency detecting unit connects the 3rd π and declines circuit unit, is suitable for the second tunnel incident power signal
It is converted into corresponding frequency dividing voltage value, and is exported.
It is to be appreciated that obtaining in other embodiments in above-described embodiment, power detection device is included at least into radio
Detection module and reflected voltage detection module are pressed, incident voltage value and reflected voltage value are obtained by the two modules, in turn
It realizes the detection for antenna end standing-wave ratio, and divides voltage detection module and can be the structure of preferred implementation, for providing more
Add comprehensive parameter testing function.It is also desirable to understand, if power detection device is only included for realizing incident voltage
The incident voltage detection module and reflected voltage detection module of value and the detection of reflected voltage value, then being that can not need rate distribution
Unit, but the first π circuit unit that declines is connected directly between on coupling interface；Only at least needing to carry out incident voltage value
When with frequency dividing voltage value detection, just need power distributing unit that incoming signal is divided into multiple signals to detect.
In specific implementation, power distributing unit can use power splitter, and decline circuit unit, the 2nd π of the first π declines circuit list
Member, the 3rd the π circuit unit that declines can be declined circuit using identical or different π, and the decline form of circuit of π can be circuit structure
Or integrated circuit etc..
Referring back to Fig. 4, a kind of embodiment schematic diagram of portable RF ID product parameters test device is given, as schemed institute
Show, can also include display unit in the present embodiment, be connected to control unit, be suitable at least display parameters test result, such as
Standing-wave ratio；It may naturally be used for generated some parameters in display test process, such as incident voltage value, reflected voltage value
And frequency dividing voltage value etc..
Further, in conjunction with Fig. 4, it can also include communications interface unit, be connected to control unit, be adapted to provide for and upper layer
The interface that software is communicated.In specific implementation, directly portable RF ID product can be joined by communications interface unit
Number test device and upper layer software (applications) are communicated, and the parameter tested or parametric results are sent in upper layer software (applications)
(such as monitoring system of monitoring center).
In specific implementation, the communications interface unit may include USB-B type interface and USB RS 232 interface.
Further, in conjunction with Fig. 4, it can also include input unit, be connected to control unit, be adapted to provide human-computer interaction
Interface can connect portable RF ID product parameters test device by peripheral equipment in this way, and by inputting come to portable
Formula RFID product parameters test device is configured or controls.
Further, in conjunction with Fig. 4, it can also include power supply unit, be attached at least to control unit, be adapted to as in device
Electric module is respectively needed to provide power supply.
In conjunction with above-described embodiment description of this invention, will elaborate below to workflow of the invention.
Workflow is as follows:
1, in conjunction with Fig. 1, portable RF ID product parameters test device is concatenated into reader and radio-frequency antenna to be measured；
2, in conjunction with Fig. 4, controls reader and issue radiofrequency signal, incoming signal enters portable RF ID product parameters test dress
It postpones, first passes around coupling unit, signal is sent directly to radio-frequency antenna all the way, and another way signal is coupled to power distributing unit
In；
3, incoming signal is after power distributing unit, and signal enters the first π and declines circuit all the way, and another way enters the 3rd π
Decline circuit；
4, signal is declined by the first π after circuit, into the first detection unit, is then believed incidence by the first detection unit
Number be converted to corresponding incident voltage value VIt is incident, subsequently into control unit；
5, signal is declined by the first π after circuit, into frequency detecting unit, is then believed incidence by frequency detecting unit
Number be converted to corresponding frequency dividing voltage value VFrequency, subsequently into control unit；
6, after the reflection signal of antenna end enters portable RF ID product parameters test device, it is reflected back all the way portable
The input terminal of RFID product parameters test device is coupled to the 2nd π all the way and declines in circuit, subsequently into the second detection unit, and
Incoming signal is converted into corresponding reflected voltage value V by the second detection unitReflection, subsequently into control unit；
7, control unit is according to particular kind of relationship formula, that is, convertible corresponding incident power out, reflection power and incoming signal frequency
Rate, and real-time standing-wave ratio size can be calculated according to incident power and transmission power；
8, input unit is made of key circuit, main function be control equipment machine open/close, the power unit of display switching with
And LCD display resolution is adjusted；
9, display unit will intuitively show following parameter: 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 test device and upper layer software (applications) communication, with
And charging interface.
In conclusion present solution provides a kind of Portable comprehensive testers for RFID product by the present invention, have
Line detection function (in the case where not influencing RFID system normal work), internal battery and LCD display, convenient for scene dimension
Shield, the features such as measurement accuracy is high.So the present invention effectively overcomes various shortcoming in the prior art and has high industrial utilization
Value.
The above-described embodiments merely illustrate the principles and effects of the present invention, and is not intended to limit the present invention.It is any ripe
The personage for knowing this technology all without departing from the spirit and scope of the present invention, carries out modifications and changes to above-described embodiment.Cause
This, institute is complete without departing from the spirit and technical ideas disclosed in the present invention by those of ordinary skill in the art such as
At all equivalent modifications or change, should be covered by the claims of the present invention.
Claims (8)
1. a kind of portable RF ID product parameters test device characterized by comprising
Coupling interface is adapted to be attached on reader and antenna, and reader is connected to antenna and is obtained through reader transmission
Incident power signal and through the received reflected power signal of antenna；
Power detection device connects the coupling interface, suitable for by the incident power signal be converted to incident voltage value, with
And the reflected power signal being converted to reflected voltage value, and exported, the power detection device includes:
Incident voltage detection module, including the first π decline circuit unit and the first detection unit, and the first π declines circuit unit company
It connects on coupling interface, suitable for exporting after incident power signal is done impedance matching adjusting to the first detection unit；Described first
Detection unit connects the first π and declines circuit unit, suitable for first via incident power signal is converted into corresponding incident voltage value, and
It is exported；
Reflected voltage detection module, including the 2nd π decline circuit unit and the second detection unit, and the 2nd π declines circuit unit company
Be connected to coupling interface, suitable for by coupled interface access from the received reflected power signal of antenna do impedance matching adjusting after it is defeated
Out to the second detection unit；Second detection unit connects the 2nd π and declines circuit unit, suitable for reflected power signal to be converted into corresponding to
Reflected voltage value, and exported；
Power distributing unit, input are connected on coupling interface, the incidence that the reader suitable for will be accessed by coupling interface is sent
Power signal is divided at least two-way incident power signal, wherein incident power signal is exported to incident voltage detection module all the way,
Another way incident power signal is exported to frequency dividing voltage detection module；
Voltage detection module is divided, including the 3rd π declines circuit unit and frequency detecting unit, the 3rd π declines circuit unit company
It connects in power distributing unit, suitable for the signal of incident power all the way at least two-way incident power signal is done impedance matching tune
It exports after section to frequency detecting unit；Frequency detecting unit connects the 3rd π and declines circuit unit, is suitable for believing the second tunnel incident power
Number it is converted into corresponding frequency dividing voltage value, and is exported；
Control unit is suitable for receiving the incident voltage value and reflected voltage value, the transmitting including reader is calculated
The parameter of at least one in the standing-wave ratio of power and tranmitting frequency and antenna end, and exported.
2. portable RF ID product parameters test device according to claim 1, which is characterized in that the power distribution list
Member is power splitter.
3. portable RF ID product parameters test device according to claim 1, which is characterized in that further include:
Display unit is connected to control unit, is suitable at least display parameters test result.
4. portable RF ID product parameters test device according to claim 1, which is characterized in that further include:
Communications interface unit is connected to control unit, is adapted to provide for the interface communicated with upper layer software (applications).
5. portable RF ID product parameters test device according to claim 4, which is characterized in that the communication interface list
Member may include USB-B type interface and USB RS 232 interface.
6. portable RF ID product parameters test device according to claim 1, which is characterized in that further include:
Input unit is connected to control unit, is adapted to provide man-machine interactive interface.
7. portable RF ID product parameters test device according to claim 1, which is characterized in that further include:
Power supply unit is attached at least to control unit, is adapted to respectively to need electric module to provide power supply in device.
8. -7 any portable RF ID product parameters test device according to claim 1, which is characterized in that the control
Unit is processor.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| 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 |
|---|---|---|---|
| CN201510990045.2A CN105553577B (en) | 2015-12-25 | 2015-12-25 | Portable RF ID product parameters test device |
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| Publication Number | Publication Date |
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| CN105553577A CN105553577A (en) | 2016-05-04 |
| CN105553577B true CN105553577B (en) | 2019-01-11 |
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| CN201510990045.2A Active CN105553577B (en) | 2015-12-25 | 2015-12-25 | Portable RF ID product parameters test device |
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Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| 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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| Publication number | Publication date |
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| CN105553577A (en) | 2016-05-04 |
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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. |