CN103364643A - Energy measuring method and device for radio frequency card reader, and energy measuring instrument - Google Patents
Energy measuring method and device for radio frequency card reader, and energy measuring instrument Download PDFInfo
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- CN103364643A CN103364643A CN201310263532XA CN201310263532A CN103364643A CN 103364643 A CN103364643 A CN 103364643A CN 201310263532X A CN201310263532X A CN 201310263532XA CN 201310263532 A CN201310263532 A CN 201310263532A CN 103364643 A CN103364643 A CN 103364643A
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Abstract
The invention provides an energy measuring method and an energy measuring device for a radio frequency card reader, and an energy measuring instrument. According to the energy measuring method provided by the invention, energy signals emitted by the radio frequency card reader are collected through a 13.56 MHZ radio frequency antenna, the energy signals are processed to obtain pulse direct current signals, the pulse direct current signals are subjected to analog-to-digital conversion, the digital quantity of the pulse direct current signals is obtained and is converted into the energy value, and the energy value is output and displayed. Engineers can obtain the emitted energy intensity of the radio frequency card reader by the method, further, whether the energy emitted by the radio frequency card reader is high enough or not is judged, so the engineers can be assisted to solve the problem that a radio frequency card cannot be normally used.
Description
Technical field
The invention belongs to the communications field, relate in particular to a kind of energy measurement method, device and energy meter of radio-frequency card reader.
Background technology
Continuous progress along with prior art and human lives, 13.56MHz the radio-frequency card of frequency range is commonly used, for example: the mess card of school lunch service, the bath card of having a bath, company personnel's attendance card, the parking card in parking lot, rate card of highway etc., because the radio-frequency card (hereinafter to be referred as radio-frequency card) of 13.56MHz frequency range can be applied to all trades and professions of society, the quality of life and the living standard that are accompanied by the application mankind of radio-frequency card improve gradually, therefore the use amount of radio-frequency card is increasing, and the quantity of the radio-frequency card reader that meanwhile is used with radio-frequency card also increases accordingly.In actual applications, the user need to radio-frequency card near or the contact radio-frequency card reader, in order to realize the function of radio-frequency card, such as work attendance, charge, timing etc.
But find in actual applications same radio-frequency card for different radio-frequency card readers, the performance that shows is different, such as: radio-frequency card can use normally on a certain radio-frequency card reader, and this radio-frequency card can not normally use on another radio-frequency card reader; Traced it to its cause two kinds: one, quality problems appear in radio-frequency card, can not be identified by radio-frequency card reader; Its two, the energy of radio-frequency card reader emission excessively a little less than, be not enough to reach the intensity of read-write radio-frequency card.
Even the intact radio-frequency card of quality is in the weak situation of the energy of radio-frequency card reader emission, can not normally use, so reason in order to judge that radio-frequency card can not normally use, so need to determine whether the emitted energy of radio-frequency card reader is enough strong, if because the energy of radio-frequency card reader emission enough by force radio-frequency card still can not normally use, then be defined as radio-frequency card and quality problems occur.But do not measure the energy approach of radio-frequency card reader emission in the prior art, therefore need now a kind of method that can measure the radio-frequency card reader emitted energy, thereby assist the slip-stick artist to solve the normally problem of Slurry pump of radio-frequency card.
Summary of the invention
The invention provides a kind of energy measurement method, device and energy meter of radio-frequency card reader, this method can be measured the energy of different types of radio-frequency card reader emission, thereby can assist the slip-stick artist to solve the normally problem of Slurry pump of radio-frequency card.
In order to address the above problem, the present invention adopts following technological means:
A kind of energy measurement method of radio-frequency card reader comprises:
Collect the energy signal of radio-frequency card reader emission by the radio-frequency antenna of 13.56MHZ;
Described energy signal processed obtain the pulse direct current signal;
Described pulse direct current signal is obtained the digital quantity of described pulse direct current signal through analog to digital conversion;
The digital quantity of described pulse direct current signal is converted to energy values;
Output also shows described energy values.
Preferably, described described energy signal is processed obtains the pulse direct current signal and comprises:
By high-frequency rectification circuit described energy signal is carried out the rectification processing and obtain described pulse direct current signal.
Preferably, described described energy signal is processed obtains the pulse direct current signal and comprises:
Obtain described pulse direct current signal by with the radio frequency chip of radio-frequency front-end described energy signal being processed.
Preferably, described pulse direct current signal comprises:
Voltage signal, current signal or power signal.
Preferably, the described energy signal of launching by the radio-frequency antenna collection radio-frequency card reader of 13.56MHZ comprises:
The radio-frequency antenna of described 13.56MHZ and the parallel placement of the radio-frequency antenna of described radio-frequency card reader are collected the energy signal of radio-frequency card reader emission by the radio-frequency antenna of 13.56MHZ.
A kind of energy measuring apparatus of radio-frequency card reader comprises:
Collector unit is used for collecting the energy signal that radio-frequency card reader is launched by the radio-frequency antenna of 13.56MHZ;
Processing unit obtains the pulse direct current signal for described energy signal is processed;
AD conversion unit is for the digital quantity that described pulse direct current signal is obtained described pulse direct current signal through analog to digital conversion;
Converting unit is used for the digital quantity of described pulse direct current signal is converted to energy values;
Display unit is used for output and shows described energy values.
Preferably, described processing unit comprises:
High-frequency rectification circuit or with the radio frequency chip of radio-frequency front-end.
Preferably, described display unit comprises:
LCD or LED.
A kind of energy meter comprises:
Has the described energy measuring apparatus of claim 6-8 any one.
A kind of energy meter comprises:
13.56MHZ radio-frequency antenna, be used for to collect the energy signal of radio-frequency card reader emission;
Regulator rectifier circuit obtains the pulse direct current signal for described energy signal is processed;
MCU is used for described pulse direct current signal is obtained the digital quantity of described pulse direct current signal through analog to digital conversion, and the digital quantity of described pulse direct current signal is converted to energy values;
Display screen is used for output and shows described energy values.
The invention provides the energy measurement method of radio-frequency card reader, device and energy meter, in method provided by the invention, at first collect the energy signal of radio-frequency card reader emission by the radio-frequency antenna of 13.56MHZ, because energy signal is that AC signal is for the ease of follow-up processing, need to process described energy signal and obtain the pulse direct current signal, obtaining the pulse direct current signal after the processing is simulating signal, therefore described pulse direct current signal is obtained the digital quantity of described pulse direct current signal through analog to digital conversion, the digital quantity of the pulse direct current signal that obtain this moment can react the power of radio-frequency card reader emitted energy, in order to measure more accurately the energy of radio-frequency card reader emission, the digital quantity of pulse direct current signal is converted to energy values, then exports and show described energy values.
The invention provides a kind of energy measurement method of radio-frequency card reader, the slip-stick artist uses the method can obtain the energy values of radio-frequency card reader emitted energy, and then whether the energy of judging the radio-frequency card reader emission is enough strong, thereby can help solve the normally problem of Slurry pump of radio-frequency card.
Description of drawings
In order to be illustrated more clearly in the embodiment of the invention or technical scheme of the prior art, the below will do to introduce simply to the accompanying drawing of required use in embodiment or the description of the Prior Art, apparently, accompanying drawing in the following describes only is some embodiments of the present invention, for those of ordinary skills, under the prerequisite of not paying creative work, can also obtain according to these accompanying drawings other accompanying drawing.
Fig. 1 is the process flow diagram of the energy measurement method of the disclosed radio-frequency card reader of the embodiment of the invention;
Fig. 2 is the energy measurement method flow diagram of the disclosed another radio-frequency card reader of the embodiment of the invention;
Fig. 3 is the structural representation of the energy measuring apparatus of the disclosed radio-frequency card reader of the embodiment of the invention;
Fig. 4 is the structural representation of processing unit in the energy test device of the disclosed radio-frequency card reader of the embodiment of the invention;
Fig. 5 is the structural representation of display unit in the energy test device of the disclosed radio-frequency card reader of the embodiment of the invention;
Fig. 6 is the structural representation of the disclosed energy meter of the embodiment of the invention;
Fig. 7 is the structural representation of the disclosed another energy meter of the embodiment of the invention.
Embodiment
Below in conjunction with the accompanying drawing in the embodiment of the invention, the technical scheme in the embodiment of the invention is clearly and completely described, obviously, described embodiment only is the present invention's part embodiment, rather than whole embodiment.Based on the embodiment among the present invention, those of ordinary skills belong to the scope of protection of the invention not making the every other embodiment that obtains under the creative work prerequisite.
As shown in Figure 1, the invention provides a kind of the first embodiment of energy measurement method of radio-frequency card reader, may further comprise the steps:
Step S101: the energy signal of collecting the radio-frequency card reader emission by the radio-frequency antenna of 13.56MHZ;
Collect at the radio-frequency antenna that uses 13.56MHZ before the energy of radio-frequency card reader emission, need to be with the radio-frequency antenna and the parallel placement of the radio-frequency antenna of radio-frequency card reader inside of 13.56MHZ, because the energy of accurately received RF card reader emission of the radio-frequency antenna of 13.56MHZ during the parallel placement of both radio-frequency antennas, if between the radio-frequency antenna of the radio-frequency antenna of 13.56MHZ and radio-frequency card reader angle is arranged, along with the energy of the radio-frequency antenna received RF card reader of the increase 13.56MHZ of angle can weaken gradually, when the angle between the radio-frequency antenna of the radio-frequency antenna of 13.56MHZ and radio-frequency card reader reaches 90 °, radio-frequency antenna almost can not receive the energy of radio-frequency card reader emission, so need the radio-frequency antenna and the parallel placement of the radio-frequency antenna of described radio-frequency card reader of described 13.56MHZ, collect the energy signal of radio-frequency card reader emission by the radio-frequency antenna of 13.56MHZ.
Because the energy of radio-frequency card reader emission is along with the increase of distance can weaken gradually, thus the radio-frequency antenna of 13.56MHZ by near or away from radio-frequency card reader, can measure the size of radio frequency degree card device emitted energy when different distance.
Step S102: described energy signal processed obtaining the pulse direct current signal;
It is AC signal that radio-frequency antenna by 13.56MHZ receives the energy signal that obtains, and for convenient follow-up further processing to energy signal, need to be further processed energy signal and obtain the pulse direct current signal.The pulse direct current signal comprises voltage signal, current signal or power signal among the present invention, and concrete operating position needs the slip-stick artist to decide for concrete application scenarios, does not do restriction at this.
Described energy signal processed obtain the pulse direct current signal, concrete, can carry out the rectification processing to described energy signal by high-frequency rectification circuit and obtain described pulse direct current signal, perhaps obtain described pulse direct current signal by with the radio frequency chip of radio-frequency front-end described energy signal being processed, two technology are prior art all, do not repeat them here.
Step S103: the digital quantity that described pulse direct current signal is obtained described pulse direct current signal through analog to digital conversion;
Processing the pulse direct current signal that obtains afterwards through above-mentioned steps and still be simulating signal, process for the ease of follow-up processor, need to be that digital signal is processed with analog signal conversion, so that the pulse direct current signal can be identified by processor.
Step S104: the digital quantity of described pulse direct current signal is converted to energy values;
According to the energy conversion formula: the digital quantity of energy values=pulse direct current signal/0.9 is converted to described energy values with the digital quantity of described pulse direct current signal, by calculating the energy values that can obtain possessing energy unit.
Step S105: export and show described energy values.
Output also shows energy values by display device, so that the slip-stick artist can judge whether the energy of radio-frequency card reader emission is enough strong according to this energy values, whether reach the standard of read-write radio-frequency card, and further obtain the reason that radio-frequency card can not normally use according to result of determination.
The invention provides the energy measurement method of radio-frequency card reader, device and energy meter, in method provided by the invention, at first collect the energy signal of radio-frequency card reader emission by the radio-frequency antenna of 13.56MHZ, because energy signal is that AC signal is for the ease of follow-up processing, need to process described energy signal and obtain the pulse direct current signal, obtaining the pulse direct current signal after the processing is simulating signal, therefore described pulse direct current signal is obtained the digital quantity of described pulse direct current signal through analog to digital conversion, the digital quantity of the pulse direct current signal that obtain this moment can react the power of radio-frequency card reader emitted energy, in order to measure more accurately the energy of radio-frequency card reader emission, the digital quantity of pulse direct current signal is converted to energy values, then exports and show described energy values.
The invention provides a kind of energy measurement method of radio-frequency card reader, the slip-stick artist uses the method can obtain the energy values of radio-frequency card reader emitted energy, and then whether the energy of judging the radio-frequency card reader emission is enough strong, thereby can help solve the normally problem of Slurry pump of radio-frequency card.
As shown in Figure 2, the present invention also provides the second embodiment of the energy measurement method of radio-frequency card reader, comprising:
Step S201: radio-frequency antenna and each radio-frequency card reader of 13.56MHZ are kept the identical parallel placement of distance;
Because identical radio-frequency card can appear on the radio-frequency card reader and normally use, and situation about on an other radio-frequency card reader, can not normally use, therefore need by the different radio-frequency card reader of energy measurement method measurement identical apart from the time, whether the intensity of energy differs greatly.
Because the energy of the emission of radio-frequency card reader is along with the increase of distance can weaken gradually, therefore for so that the energy values that each radio-frequency card reader obtains has comparability, the distance that the radio-frequency antenna of 13.56MHZ is identical from the maintenance between the different radio-frequency card reader is so that the data that obtain in the subsequent process have comparability.
Step 202: the energy values that obtains each radio-frequency card reader;
By the energy measurement method of the first embodiment, obtain the energy values of each radio-frequency card reader.
Step 203: contrast the energy values of each radio-frequency card reader, determine that the reason of quality problems appears in radio-frequency card.
If obtaining energy values in same distance, each radio-frequency card reader is more or less the same, in the scope that radio-frequency card can be identified, illustrate that then the reason that radio-frequency card can not normally use is not because the energy of radio-frequency card reader emission causes not by force, but the quality of radio-frequency card goes wrong and causes, therefore the radio-frequency card that goes wrong need to be returned factory's rebuilding.
The method that provides by present embodiment can be good at measuring the energy of radio-frequency card reader emission, thereby the reason that can assist the correct judgement radio-frequency card of slip-stick artist normally not use has been saved slip-stick artist's time.
As shown in Figure 3, the present invention also provides a kind of energy measuring apparatus of radio-frequency card reader, comprising:
As shown in Figure 4, processing unit 200 comprises in this device: high-frequency rectification circuit 201 or with the radio frequency chip 202 of radio-frequency front-end.
Converting unit 400 is used for the digital quantity of described pulse direct current signal is converted to energy values;
The function of AD conversion unit 300 and converting unit 400 realizes by MCU.
The invention provides a kind of energy measuring apparatus of radio-frequency card reader, the slip-stick artist uses the method can obtain the energy values of radio-frequency card reader emitted energy, and then whether the energy of judging the radio-frequency card reader emission is enough strong, thereby can help solve the normally problem of Slurry pump of radio-frequency card.
The present invention also provides a kind of energy meter, and this energy meter comprises as shown in Figure 3 energy measuring apparatus.
The present invention also provides a kind of energy meter, as shown in Figure 6 and Figure 7, comprising:
13.56MHZ radio-frequency antenna 600, be used for to collect the energy signal of radio-frequency card reader emission;
MCU800 is used for described pulse direct current signal is obtained the digital quantity of described pulse direct current signal through analog to digital conversion, and the digital quantity of described pulse direct current signal is converted to energy values;
As shown in Figure 4,13.56MHZ radio-frequency antenna can be surrounded on the periphery of described display screen, MCU and regulator rectifier circuit, around radio-frequency antenna can be one the circle also can be multi-turn, concrete decides according to actual conditions, as shown in Figure 5, radio-frequency antenna also can be the radio-frequency antenna of independently placing.13.56MHZ radio-frequency antenna be connected with the input end of regulator rectifier circuit, the output terminal of regulator rectifier circuit is connected with the input end of MCU, the signal output part of MCU is connected with the signal input part of display screen.
If the described function of present embodiment method realizes with the form of SFU software functional unit and during as independently production marketing or use, can be stored in the computing equipment read/write memory medium.Based on such understanding, the part that the embodiment of the invention contributes to prior art or the part of this technical scheme can embody with the form of software product, this software product is stored in the storage medium, comprise that some instructions are with so that a computing equipment (can be personal computer, server, mobile computing device or the network equipment etc.) carry out all or part of step of the described method of each embodiment of the present invention.And aforesaid storage medium comprises: the various media that can be program code stored such as USB flash disk, portable hard drive, ROM (read-only memory) (ROM, Read-Only Memory), random access memory (RAM, Random Access Memory), magnetic disc or CD.
Each embodiment adopts the mode of going forward one by one to describe in this instructions, and what each embodiment stressed is and the difference of other embodiment that same or similar part is mutually referring to getting final product between each embodiment.
To the above-mentioned explanation of the disclosed embodiments, make this area professional and technical personnel can realize or use the present invention.Multiple modification to these embodiment will be apparent concerning those skilled in the art, and General Principle as defined herein can in the situation that does not break away from the spirit or scope of the present invention, realize in other embodiments.Therefore, the present invention will can not be restricted to these embodiment shown in this article, but will meet the widest scope consistent with principle disclosed herein and features of novelty.
Claims (10)
1. the energy measurement method of a radio-frequency card reader is characterized in that, comprising:
Collect the energy signal of radio-frequency card reader emission by the radio-frequency antenna of 13.56MHZ;
Described energy signal processed obtain the pulse direct current signal;
Described pulse direct current signal is obtained the digital quantity of described pulse direct current signal through analog to digital conversion;
The digital quantity of described pulse direct current signal is converted to energy values;
Output also shows described energy values.
2. the method for claim 1 is characterized in that, described described energy signal is processed obtains the pulse direct current signal and comprise:
By high-frequency rectification circuit described energy signal is carried out the rectification processing and obtain described pulse direct current signal.
3. the method for claim 1 is characterized in that, described described energy signal is processed obtains the pulse direct current signal and comprise:
Obtain described pulse direct current signal by with the radio frequency chip of radio-frequency front-end described energy signal being processed.
4. such as claim 1,2 or 3 described methods, it is characterized in that described pulse direct current signal comprises:
Voltage signal, current signal or power signal.
5. the method for claim 1 is characterized in that, the energy signal that described radio-frequency antenna by 13.56MHZ is collected the radio-frequency card reader emission comprises:
The radio-frequency antenna of described 13.56MHZ and the parallel placement of the radio-frequency antenna of described radio-frequency card reader are collected the energy signal of radio-frequency card reader emission by the radio-frequency antenna of 13.56MHZ.
6. the energy measuring apparatus of a radio-frequency card reader is characterized in that, comprising:
Collector unit is used for collecting the energy signal that radio-frequency card reader is launched by the radio-frequency antenna of 13.56MHZ;
Processing unit obtains the pulse direct current signal for described energy signal is processed;
AD conversion unit is for the digital quantity that described pulse direct current signal is obtained described pulse direct current signal through analog to digital conversion;
Converting unit is used for the digital quantity of described pulse direct current signal is converted to energy values;
Display unit is used for output and shows described energy values.
7. install as claimed in claim 6, it is characterized in that described processing unit comprises:
High-frequency rectification circuit or with the radio frequency chip of radio-frequency front-end.
8. install as claimed in claim 6, it is characterized in that described display unit comprises:
LCD or LED.
9. an energy meter is characterized in that, comprising:
Has the described energy measuring apparatus of claim 6-8 any one.
10. an energy meter is characterized in that, comprising:
13.56MHZ radio-frequency antenna, be used for to collect the energy signal of radio-frequency card reader emission;
Regulator rectifier circuit obtains the pulse direct current signal for described energy signal is processed;
MCU is used for described pulse direct current signal is obtained the digital quantity of described pulse direct current signal through analog to digital conversion, and the digital quantity of described pulse direct current signal is converted to energy values;
Display screen is used for output and shows described energy values.
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| CN201310263532.XA CN103364643B (en) | 2013-06-27 | 2013-06-27 | The energy measuring method of radio-frequency card reader, device and energy meter |
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Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS59142471A (en) * | 1983-02-03 | 1984-08-15 | Sanyo Electric Co Ltd | Electric field intensity detecting circuit |
| CN101119546A (en) * | 2006-08-04 | 2008-02-06 | 联想移动通信科技有限公司 | Mobile terminal and radio-frequency radiation detector with detecting function |
| CN101354412A (en) * | 2008-08-28 | 2009-01-28 | 深圳华为通信技术有限公司 | Apparatus for testing electromagnetic radiation strength |
| CN102932073A (en) * | 2012-10-17 | 2013-02-13 | 广州润芯信息技术有限公司 | Emission signal strength detecting circuit |
-
2013
- 2013-06-27 CN CN201310263532.XA patent/CN103364643B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS59142471A (en) * | 1983-02-03 | 1984-08-15 | Sanyo Electric Co Ltd | Electric field intensity detecting circuit |
| CN101119546A (en) * | 2006-08-04 | 2008-02-06 | 联想移动通信科技有限公司 | Mobile terminal and radio-frequency radiation detector with detecting function |
| CN101354412A (en) * | 2008-08-28 | 2009-01-28 | 深圳华为通信技术有限公司 | Apparatus for testing electromagnetic radiation strength |
| CN102932073A (en) * | 2012-10-17 | 2013-02-13 | 广州润芯信息技术有限公司 | Emission signal strength detecting circuit |
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