CN102790649A - Device and method for commissioning communication distances of radio frequency SIM card and radio frequency card reader - Google Patents
Device and method for commissioning communication distances of radio frequency SIM card and radio frequency card reader Download PDFInfo
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- CN102790649A CN102790649A CN2011102444484A CN201110244448A CN102790649A CN 102790649 A CN102790649 A CN 102790649A CN 2011102444484 A CN2011102444484 A CN 2011102444484A CN 201110244448 A CN201110244448 A CN 201110244448A CN 102790649 A CN102790649 A CN 102790649A
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Abstract
The invention provides a device for commissioning the communication distance of a radio frequency SIM (Subscriber Identity Module) card. The device comprises a main controller, a radio frequency antenna and a radio frequency transceiver circuit, wherein the main controller is used for setting an intensity threshold m of a radio frequency signal; the radio frequency antenna is used for acquiring a radio frequency output power value and a radio frequency signal intensity value n of the radio frequency SIM card; the radio frequency transceiver circuit is connected between the radio frequency antenna and the main controller and is used for detecting and transmitting the radio frequency intensity value n to the main controller; and the main controller is also used for transmitting relevant instruction data to the radio frequency SIM card for controlling the radio frequency SIM card to increase or reduce an output power value of the radio frequency SIM card according to the size relationship. According to the device provided by the invention, the influence on signal shield of the radio frequency SIM card caused by a mobile terminal is eliminated and the card reading operation is ensured. Meanwhile, the invention provides a method for commissioning the communication distance of the radio frequency SIM card. In addition, the invention also provides a device and a method for commissioning the communication distance of a radio frequency card reader.
Description
[technical field]
The present invention relates to the communications field, relate in particular to a kind of the accent and survey the swipe the card device and method of distance and radio-frequency card reader communication distance of radio-frequency SIM card.
[background technology]
Along with the needs of productive life, the used subscriber identification modules (can also be usim card or UIM card etc. such as subscriber identification module) such as SIM (Subscriber Identity Module, subscriber identification module) card of mobile communication technology more and more are widely used.Development of Communication Technique; Brought technological change also for various subscriber identification modules; In the subscriber identify module card card bodies such as SIM of common mobile communication terminal (hereinafter to be referred as " mobile phone "), increase various smart circuit modules through the whole bag of tricks; The subscriber identification module that feasible process is transformed also has other to have the function of closeness to life more except having basic subscriber identify module card function, and the radio frequency user recognition module card is exactly one of them such as (radio-frequency SIM card).Make it to become the SIM cards of mobile phones with payment function through transforming SIM cards of mobile phones, mobile phone also has concurrently such as other functions such as credit card, gate inhibition, work attendances except basic communication function like this.Radio-frequency SIM card involved in the present invention is exactly the mobile phone card that possesses these functions.
Radio-frequency SIM involved in the present invention (Subscriber Identity Module) card; Comprise central controller CPU, RF transmit-receive circuit, radio-frequency antenna and communication interface; RF transmit-receive circuit and communication interface are electrically connected at central processor CPU respectively, and radio-frequency antenna and RF transmit-receive circuit electrically connect.Under the control of central controller CPU, this radio-frequency SIM card can with mobile communication to realize the function of conventional SIM, simultaneously, in short distance, realize communicating by letter with the radio-frequency card reader of periphery through RF transmit-receive circuit, radio-frequency antenna.
When above-mentioned radio-frequency SIM card as smart card times spent such as mass transit card, gate inhibition's card, credit card, attendance cards; For fear of mispronouncing card or misreading the card operation; Must limit the Card Reader distance of installing between radio-frequency SIM card and the radio-frequency card reader, only certain apart from the time radio-frequency card reader Card Reader could normally carry out.Under the certain situation of the radio-frequency emission power of radio-frequency SIM card, communication distance receives the influence of mobile phone shielding effect.The shield effectiveness of mobile phone is determined by the material of mobile phone and manufacturing process mainly.If this radio-frequency SIM card places the good mobile phone of shield effectiveness, its Card Reader distance is then nearer, have in addition can not launch signal frequently, cause not Card Reader phenomenon; If this radio-frequency SIM card places the mobile phone of shield effectiveness mobile phone difference, its Card Reader distance is then far away, causes easily and misreads card or mispronounce card.
Therefore, radio-frequency card reader and the communication distance that is built in radio-frequency SIM card are transferred survey, guarantee that Card Reader reliability and accuracy are particularly important.
[summary of the invention]
The technical problem that the present invention will solve is to avoid the deficiency of above-mentioned prior art and provides a kind of the accent to survey the swipe the card device and method of distance and radio-frequency card reader communication distance of radio-frequency SIM card.
The technical problem that the present invention will solve can adopt following technical proposals to realize:
A kind of device of surveying radio-frequency card reader Card Reader communication distance of transferring comprises master controller, is used to set RF signal strength threshold values m; Radio-frequency antenna is used to obtain the radio frequency power output value of radio-frequency SIM card and the RF signal strength value n of radio-frequency SIM card; RF transmit-receive circuit is connected between said radio-frequency antenna and the master control, is used for detecting and said RF signal strength value n is sent to said master controller; Said master controller also is used for the magnitude relationship according to m and n, and emission dependent instruction data to radio-frequency SIM card increases in order to control radio-frequency SIM khaki output power value or reduces.
A kind of swipe the card method of communication distance of radio-frequency SIM card of surveying of transferring is surveyed the swipe the card device of communication distance of radio-frequency SIM card based on a kind of the accent, comprising:
Step a1 preestablishes detection orientation and distance
Said device is positioned over the dead astern that is provided with the radio-frequency SIM card terminal, and the actual required separation distance of distance between the two and radio-frequency SIM card and radio-frequency card reader is suitable;
Step a2 sets the RF signal strength threshold values
In said master controller, set received RF signal intensity threshold values m;
Step a3, the received RF output power value
Said master controller and radio-frequency SIM card carry out transfer of data; Obtain the radio frequency power output value that radio-frequency SIM card sets; And the RF signal strength value n of detecting radio-frequency SIM card output, said master controller also is presented at this radio frequency power output value and RF signal strength value n on the said display module through the control display module;
Step a4 transfers and surveys the radio frequency power output value
If n＞m, said master controller is regulated the instruction of radio frequency power output value to the radio-frequency SIM card transmission, and RF transmit-receive circuit is handled and should be instructed, and is launched by radio-frequency antenna, and radio-frequency SIM card reduces radio frequency power output makes n suitable with m,
If n＜m, said master controller is regulated the instruction of radio frequency power output value to the radio-frequency SIM card transmission, and RF transmit-receive circuit is handled and should be instructed, and is launched by radio-frequency antenna, and radio-frequency SIM card increases radio frequency power output makes n suitable with m,
If n ≈ m, this radio frequency power output value is not done adjusting;
Step a5, radio-frequency SIM card is preserved the radio frequency power output value
Radio-frequency SIM card is preserved the radio frequency power output value after regulating among the step a4, and the radio frequency power output value when swiping the card command range as radio-frequency SIM card.
A kind of device of surveying radio-frequency card reader Card Reader communication distance of transferring, comprising: master controller is used to set radiofrequency signal predetermined radio frequency performance number p; Radio-frequency antenna is used for emitting radio frequency signal predetermined radio frequency performance number p and obtains radio-frequency card reader detecting the corresponding RF signal strength value q of predetermined radio frequency performance number p; RF transmit-receive circuit is connected between said radio-frequency antenna and the master controller, is used for detecting and said RF signal strength value q is sent to said master controller.
A kind of method of surveying radio-frequency card reader Card Reader communication distance of transferring based on a kind of device of surveying radio-frequency card reader Card Reader communication distance of transferring, comprising:
Step b1 preestablishes detection orientation and distance
Said device is positioned over the dead ahead of radio-frequency card reader, and the actual required separation distance of distance between the two and radio-frequency SIM card and radio-frequency card reader is suitable;
Step b2 sets radiofrequency signal predetermined radio frequency performance number
In said master controller, set radiofrequency signal preset power value p;
Step b3, output predetermined radio frequency performance number p
Said master controller sends output predetermined radio frequency performance number p instruction, and RF transmit-receive circuit is handled and should be instructed, and is launched by radio-frequency antenna, and said main controller controls display module also is presented at this radio-frequency power value p on the said display module; ,
Step b4, radio-frequency card reader is preserved the RF signal strength value
Said radio-frequency card reader and device carry out transfer of data; Said radio-frequency card reader detects the corresponding RF signal strength value q of predetermined radio frequency performance number p; Preserve this RF signal strength value q simultaneously, and with this RF signal strength value q as radio-frequency card reader identification with read the signal strength threshold value of radio-frequency SIM card, said device and radio-frequency card reader carry out transfer of data; Obtain the RF signal strength value q of radio-frequency card reader detecting, and the RF signal strength value is presented on the said display module; ,
Compared with prior art; The present invention adopts the beneficial effect of technique scheme to be: set RF signal strength threshold values m through master controller; And radio-frequency SIM card radio frequency power output value is transferred survey according to this RF signal strength threshold values m; Eliminate portable terminal to the influence that the radio-frequency SIM card signal shielding causes, avoided, guaranteed the reliability and the accuracy of Card Reader operation because there is uncertainty in communication distance of radio frequency SIM card.
In addition; This device can also be set radiofrequency signal preset power value p through master controller; The RF signal strength value q under the radiofrequency signal preset power value p will detected and be kept to radio-frequency card reader; And with this RF signal strength value q as radio-frequency card reader identification with read the signal strength threshold value of radio-frequency SIM card, so just avoided because radio-frequency card reader decision signal strength threshold value inaccuracy causes the operate miss of swiping the card, guaranteed the fail safe of transaction.
[description of drawings]
The swipe the card apparatus structure sketch map of communication distance of radio-frequency SIM card surveyed in accent that Fig. 1 provides for present embodiment one;
The radio-frequency SIM card structural representation that Fig. 2 provides for present embodiment one;
The swipe the card method flow diagram of communication distance of radio-frequency SIM card surveyed in accent that Fig. 3 provides for present embodiment two;
The apparatus structure sketch map of radio-frequency card reader Card Reader communication distance surveyed in the accent that Fig. 4 provides for present embodiment three;
The radio-frequency card reader structural representation that Fig. 5 provides for present embodiment three;
The method flow diagram of radio-frequency card reader Card Reader communication distance surveyed in the accent that Fig. 6 provides for present embodiment four.
[embodiment]
In order to make the object of the invention, technical scheme and advantage clearer,, the present invention is further elaborated below in conjunction with accompanying drawing and specific embodiment.Should be appreciated that specific embodiment described herein only in order to explanation the present invention, and be not used in qualification the present invention.
Embodiment one:
See also Fig. 1; The swipe the card apparatus structure sketch map of communication distance of radio-frequency SIM card surveyed in the accent that provides for present embodiment one, and this device 100 comprises master controller 101, RF transmit-receive circuit 102, radio-frequency antenna 103, display module 104, key circuit 105, power supply circuits 106.
RF transmit-receive circuit 102 carries out two-way the connection with master controller 101, and RF transmit-receive circuit 102 is electrically connected at radio-frequency antenna 103.Master controller 101 is launched through radio-frequency antenna 103 after data command is handled through RF transmit-receive circuit 102 on the one hand, can realize through RF transmit-receive circuit 102 and radio-frequency antenna 103 on the other hand and peripheral radio-frequency SIM card realization radio communication.
Seeing also Fig. 2, is the radio-frequency SIM card structural representation that present embodiment one provides.This radio-frequency SIM card 200 comprises communication interface 201, CPU202, RF transmit-receive circuit 203 and radio-frequency antenna 204.Communication interface 201, RF transmit-receive circuit 203 electrically connect respectively and CPU202, and controlled by CPU202, and radio-frequency antenna 204 connects RF transmit-receive circuit 203.
In the present embodiment; Radio-frequency SIM card 200 sends the instruction of output radio-frequency power value, and RF transmit-receive circuit 203 is handled and should be instructed, radio-frequency antenna 204 emission radio-frequency power values; Radio-frequency antenna 103 on this device 100 obtains this radio-frequency power value; Simultaneously, detect the RF signal strength value of radio-frequency SIM card 200 outputs, radio-frequency antenna 103 is back to master controller 101 processing with radio-frequency power value and RF signal strength through RF transmit-receive circuit 102; Master controller 101 is presented at this radio-frequency power value and RF signal strength value on the display module 104 through control display module 104.Like this, realized that these device 100 radio-frequency SIM cards 200 carry out radio communication.
Be appreciated that; Device 100 can be adjusted to radio-frequency SIM card 200 has identical work radio frequency band and RF spot; Particularly, the RF transmit-receive circuit 102 of device on 100, radio-frequency antenna 103 have identical radio frequency band and RF spot with RF transmit-receive circuit 203, radio-frequency antenna 204 on the radio-frequency SIM card 200.Simultaneously, device 100 is observed identical communication protocol with said radio-frequency SIM card 200, can realize transfer of data each other.In reality, for implement device 100 and radio-frequency SIM card 200 better communication efficiencies, device 100 is located at a plastic shell.
Embodiment two:
See also Fig. 3, the swipe the card method flow diagram of communication distance of radio-frequency SIM card surveyed in the accent that provides for present embodiment two, and it comprises the steps:
Step a1 preestablishes detection orientation and distance:
Step a2, set the RF signal strength threshold values:
In master controller 103, set received RF signal intensity threshold values m.According in the reality to the swipe the card requirement of distance of radio-frequency SIM card, in master controller 103, set received RF signal intensity threshold values m, if require radio-frequency SIM card closely realizing Card Reader, then the m value is less than normal; Otherwise if require radio-frequency SIM card at the remote Card Reader of realizing, corresponding m value is bigger than normal.Be appreciated that RF signal strength threshold values m can change;
Step a3, the received RF output power value:
Step a4, transfer and survey the radio frequency power output value:
If n＞m, master controller 103 is regulated the instruction of radio frequency power output value to radio-frequency SIM card 200 transmissions, and RF transmit-receive circuit 104 is handled and should be instructed, and is launched by radio-frequency antenna 105, and radio-frequency SIM card 200 reduces radio frequency power output makes n suitable with m,
If n＜m, master controller 103 is regulated the instruction of radio frequency power output value to radio-frequency SIM card 200 transmissions, and RF transmit-receive circuit 104 is handled and should be instructed, and is launched by radio-frequency antenna 105, and radio-frequency SIM card 200 increases radio frequency power outputs makes n suitable with m,
If n ≈ m, this radio frequency power output value is not done adjusting;
Step a5, radio-frequency SIM card is preserved the radio frequency power output value:
Radio-frequency SIM card 200 is preserved the radio frequency power output value after regulating among the step a4, and the radio frequency power output value when swiping the card operation as radio-frequency SIM card 200.
Be appreciated that; When radio-frequency SIM card and radio-frequency card reader keep actual required communication distance; The radio frequency power output value of radio-frequency SIM card one end radiation is directly proportional with the RF signal strength value that radio-frequency card reader is sensed, and the big more RF signal strength value of radio frequency power output value is strong more.The present invention regulates the radio frequency power output value of radio-frequency SIM card 200; And as the swipe the card radio frequency power output value in when operation of radio-frequency SIM card 200; The RF signal strength value that makes radio-frequency card reader sense is identical, has the identical Card Reader distance of radio-frequency SIM card 200 different terminals maintenance thereby make.
Embodiment three:
See also Fig. 4, the device 300 of radio-frequency card reader Card Reader communication distance surveyed in the accent that provides for embodiment three, because structurally have identical structure with the device 100 that embodiment one provides, here no longer describes.
Seeing also Fig. 5, is the radio-frequency card reader structural representation that present embodiment three provides.This radio-frequency card reader 400 comprises display module 401, key circuit 402, power supply circuits 403, CPU404, RF transmit-receive circuit 405, radio-frequency antenna 406, memory circuit 407, communicating circuit 408 and connects the communication interface 409 of communicating circuit 408.Display module 401, key circuit 402, RF transmit-receive circuit 405, memory circuit 407, telecommunication circuit 408 are electrically connected at CPU404 respectively, and controlled by CPU404, and radio-frequency antenna 406 is connected in RF transmit-receive circuit 405.
In the present embodiment, carry out button operation through key circuit 302 earlier, for transferring the pattern of surveying radio-frequency card reader, this device 300 brings into operation and transfers the pattern of surveying radio-frequency card reader like this with device 300 Working mode sets.
Be appreciated that; Device 300 can be adjusted to radio-frequency card reader 400 has identical work radio frequency band and RF spot; Particularly, the RF transmit-receive circuit 304 of device on 300, radio-frequency antenna 305 have identical radio frequency band and RF spot with RF transmit-receive circuit 405, radio-frequency antenna 406 on the radio-frequency card reader 400.Simultaneously, device 300 is observed identical communication protocol with said radio-frequency card reader 400, can realize transfer of data each other.In reality, for implement device 300 and radio-frequency card reader 400 better communication efficiencies, device 300 is located at a plastic shell.
Embodiment four:
See also Fig. 6, the method flow diagram of radio-frequency card reader Card Reader communication distance surveyed in the accent that provides for present embodiment four, and it comprises the steps:
Step b1 preestablishes detection orientation and distance:
With the dead ahead that device 300 is positioned over radio-frequency card reader 400, the actual required separation distance of distance between the two and radio-frequency SIM card and radio-frequency card reader is suitable.In reality because requiring of adjusting the distance of the different environment of swiping the card is inequality, if require the Card Reader distance of radio-frequency SIM card and radio-frequency card reader near, then install 300 and radio-frequency SIM card 400 spacings also nearer relatively; Otherwise, then install 300 with radio-frequency SIM card 400 spacings far away;
Step b2, set radiofrequency signal predetermined radio frequency performance number:
In master controller 303, set radiofrequency signal preset power value p.According in the reality to the requirement of radio-frequency card reader 404 Card Reader distances, in master controller 303, set the preset radio-frequency power value p of output, if require radio-frequency card reader 404 closely realizing Card Reader, then the p value is less than normal; Otherwise if require radio-frequency card reader 404 at the remote Card Reader of realizing, corresponding p value is bigger than normal.Be appreciated that RF signal strength threshold values p can change;
Step b3, output predetermined radio frequency performance number p:
Step b4, radio-frequency card reader is preserved the RF signal strength value:
Radio-frequency card reader 400 carries out transfer of data with device 300; Radio-frequency card reader 400 detects the corresponding RF signal strength value q of predetermined radio frequency performance number p; Preserve this RF signal strength value q simultaneously, and this RF signal strength value q is discerned and read the signal strength threshold value of radio-frequency SIM card 300 as radio-frequency card reader 400.
Be appreciated that; When radio-frequency SIM card and radio-frequency card reader keep actual required communication distance; The radio frequency power output value of radio-frequency SIM card one end radiation is directly proportional with the RF signal strength value that radio-frequency card reader is sensed, and the big more RF signal strength value of radio frequency power output value is strong more.Device 300 provided by the invention is through being provided with RF signal strength threshold value q to radio-frequency card reader 400, and through the peripheral radio-frequency SIM card of RF signal strength threshold value q identification.When the RF signal strength value of the peripheral radio-frequency SIM card radiation of radio-frequency card reader 400 detecting greater than the q value, communication distance between peripheral radio-frequency SIM card and the radio-frequency card reader 400 is described less than the required communication distance of reality, this moment can not successful Card Reader; When the RF signal strength value of the peripheral radio-frequency SIM card radiation of radio-frequency card reader 400 detecting less than the q value, communication distance between peripheral radio-frequency SIM card and the radio-frequency card reader 400 is described greater than the required communication distance of reality, this moment can not successful Card Reader.Have only radio-frequency card reader 400 detecting peripheral radio-frequency SIM card radiation RF signal strength value and q value quite, could realize Card Reader, kept identical Card Reader distance like this between radio-frequency card reader 400 and the peripheral radio-frequency SIM card.
Need to prove that above-described embodiment of the present invention does not constitute the qualification to protection range of the present invention.Other various corresponding changes and distortion that any technical conceive according to the present invention has been done all should be included within the protection range of claim of the present invention.
Claims (14)
1. transfer and survey the swipe the card device of communication distance of radio-frequency SIM card for one kind, it is characterized in that, comprising:
Master controller is used to set RF signal strength threshold values m;
Radio-frequency antenna is used to obtain the radio frequency power output value of radio-frequency SIM card and the RF signal strength value n of radio-frequency SIM card;
RF transmit-receive circuit is connected between said radio-frequency antenna and the master control, is used for detecting and said RF signal strength value n is sent to said master controller;
Said master controller also is used for the magnitude relationship according to m and n, and emission dependent instruction data to radio-frequency SIM card increases in order to the output power value of controlling radio-frequency SIM card or reduces.
2. the swipe the card device of communication distance of radio-frequency SIM card surveyed in accent as claimed in claim 1; It is characterized in that; Said device also comprises display module, and said display module is connected in said master controller, is used to show said radio frequency power output value and RF signal strength value n.
3. the swipe the card device of communication distance of radio-frequency SIM card surveyed in accent as claimed in claim 1, it is characterized in that said device can be adjusted to said radio-frequency SIM card has identical work radio frequency band and RF spot.
4. the swipe the card device of communication distance of radio-frequency SIM card surveyed in accent as claimed in claim 1, it is characterized in that, said device and said radio-frequency SIM card can be realized transfer of data each other in accordance with identical communication protocol.
5. the swipe the card device of communication distance of radio-frequency SIM card surveyed in accent as claimed in claim 1, it is characterized in that said master controller is used for handling the back to director data through RF transmit-receive circuit and is launched by radio-frequency antenna.
6. transfer the swipe the card method of communication distance of radio-frequency SIM card of surveying for one kind, survey the swipe the card device of communication distance of radio-frequency SIM card, it is characterized in that, comprising based on a kind of the accent:
Step a1 preestablishes detection orientation and distance
Said device is positioned over the dead astern that is provided with the radio-frequency SIM card terminal, and the actual required separation distance of distance between the two and radio-frequency SIM card and radio-frequency card reader is suitable;
Step a2 sets the RF signal strength threshold values
In said master controller, set received RF signal intensity threshold values m;
Step a3, the received RF output power value
Said master controller and radio-frequency SIM card carry out transfer of data; Obtain the radio frequency power output value that radio-frequency SIM card sets; And the RF signal strength value n of detecting radio-frequency SIM card output, said master controller also is presented at this radio frequency power output value and RF signal strength value n on the said display module through the control display module;
Step a4 transfers and surveys the radio frequency power output value
If n＞m, said master controller is regulated the instruction of radio frequency power output value to the radio-frequency SIM card transmission, and RF transmit-receive circuit is handled and should be instructed, and is launched by radio-frequency antenna, and radio-frequency SIM card reduces radio frequency power output makes n suitable with m,
If n＜m, said master controller is regulated the instruction of radio frequency power output value to the radio-frequency SIM card transmission, and RF transmit-receive circuit is handled and should be instructed, and is launched by radio-frequency antenna, and radio-frequency SIM card increases radio frequency power output makes n suitable with m,
If n ≈ m, this radio frequency power output value is not done adjusting;
Step a5, radio-frequency SIM card is preserved the radio frequency power output value
Radio-frequency SIM card is preserved the radio frequency power output value after regulating among the step a4, and the radio frequency power output value when swiping the card command range as radio-frequency SIM card.
7. the swipe the card method of distance of radio-frequency SIM card surveyed in accent as claimed in claim 6, it is characterized in that said RF signal strength threshold values m can change.
8. transfer the device of surveying radio-frequency card reader Card Reader communication distance for one kind, it is characterized in that, comprising:
Master controller is used to set radiofrequency signal predetermined radio frequency performance number p;
Radio-frequency antenna is used for emitting radio frequency signal predetermined radio frequency performance number p and obtains radio-frequency card reader detecting the corresponding RF signal strength value q of predetermined radio frequency performance number p;
RF transmit-receive circuit is connected between said radio-frequency antenna and the master controller, is used for detecting and said RF signal strength value q is sent to said master controller.
9. the device of radio-frequency card reader Card Reader communication distance surveyed in accent as claimed in claim 8; It is characterized in that; Said device also comprises display module, and said display module is electrically connected at described master controller, is used to show radio-frequency power value p and RF signal strength value q.
10. the device of radio-frequency card reader Card Reader communication distance surveyed in accent as claimed in claim 8, it is characterized in that said device can be adjusted to said radio-frequency card reader has identical work radio frequency band and RF spot.
11. the device of radio-frequency card reader Card Reader communication distance surveyed in accent as claimed in claim 8, it is characterized in that, said device is observed identical communication protocol with said radio-frequency card reader, can realize transfer of data each other.
12. transfer the method for surveying radio-frequency card reader Card Reader communication distance for one kind, based on a kind of device of surveying radio-frequency card reader Card Reader communication distance of transferring, it is characterized in that, comprising:
Step b1 preestablishes detection orientation and distance
Said device is positioned over the dead ahead of radio-frequency card reader, and the actual required separation distance of distance between the two and radio-frequency SIM card and radio-frequency card reader is suitable;
Step b2 sets radiofrequency signal predetermined radio frequency performance number
In said master controller, set radiofrequency signal preset power value p;
Step b3, output predetermined radio frequency performance number p
Said master controller sends output predetermined radio frequency performance number p instruction, and RF transmit-receive circuit is handled and should be instructed, and is launched by radio-frequency antenna, and said main controller controls display module also is presented at this radio-frequency power value p on the said display module;
Step b4, radio-frequency card reader is preserved the RF signal strength value
Said radio-frequency card reader and device carry out transfer of data; Said radio-frequency card reader detects the corresponding RF signal strength value q of predetermined radio frequency performance number p; Preserve this RF signal strength value q simultaneously, and with this RF signal strength value q as radio-frequency card reader identification with read the signal strength threshold value of radio-frequency SIM card, said device and radio-frequency card reader carry out transfer of data; Obtain the RF signal strength value q of radio-frequency card reader detecting, and RF signal strength value q is presented on the said display module.
13. the method for radio-frequency card reader Card Reader communication distance surveyed in accent as claimed in claim 12, it is characterized in that said predetermined radio frequency performance number p can change.
The device of communication distance is characterized in that 14. accent survey radio-frequency SIM card as claimed in claim 12 is swiped the card, and said master controller is used for handling the back to director data through RF transmit-receive circuit and is launched by radio-frequency antenna.
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| CN201110244448.4A CN102790649B (en) | 2011-08-23 | 2011-08-23 | The device and method of commissioning radio-frequency SIM card and radio-frequency card reader communication distance |
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| JP2007148957A (en) * | 2005-11-30 | 2007-06-14 | Brother Ind Ltd | Radio tag information reading device |
| CN101330334A (en) * | 2008-03-04 | 2008-12-24 | 深圳市中兴集成电路设计有限责任公司 | Apparatus and method for calibrating communication distance of radio frequency SIM card |
| CN101888277A (en) * | 2010-06-17 | 2010-11-17 | 深圳市江波龙电子有限公司 | Intelligent expansion card, received signal strength indication (RSSI)-based near field communication control system and method |
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Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2007148957A (en) * | 2005-11-30 | 2007-06-14 | Brother Ind Ltd | Radio tag information reading device |
| CN101330334A (en) * | 2008-03-04 | 2008-12-24 | 深圳市中兴集成电路设计有限责任公司 | Apparatus and method for calibrating communication distance of radio frequency SIM card |
| CN101888277A (en) * | 2010-06-17 | 2010-11-17 | 深圳市江波龙电子有限公司 | Intelligent expansion card, received signal strength indication (RSSI)-based near field communication control system and method |
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