CN115589240B - Method, system and device for determining communication phase, equipment to be calibrated and calibration piece - Google Patents
Method, system and device for determining communication phase, equipment to be calibrated and calibration piece Download PDFInfo
- Publication number
- CN115589240B CN115589240B CN202211446982.8A CN202211446982A CN115589240B CN 115589240 B CN115589240 B CN 115589240B CN 202211446982 A CN202211446982 A CN 202211446982A CN 115589240 B CN115589240 B CN 115589240B
- Authority
- CN
- China
- Prior art keywords
- phase
- data
- determining
- target
- digital signal
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
- 238000004891 communication Methods 0.000 title claims abstract description 90
- 238000000034 method Methods 0.000 title claims abstract description 58
- 239000003550 marker Substances 0.000 claims description 29
- 238000006243 chemical reaction Methods 0.000 claims description 28
- 238000010586 diagram Methods 0.000 description 13
- 230000006870 function Effects 0.000 description 7
- 238000012360 testing method Methods 0.000 description 5
- 238000004590 computer program Methods 0.000 description 4
- 238000009434 installation Methods 0.000 description 4
- 230000008878 coupling Effects 0.000 description 3
- 238000010168 coupling process Methods 0.000 description 3
- 238000005859 coupling reaction Methods 0.000 description 3
- 238000012545 processing Methods 0.000 description 3
- 238000005516 engineering process Methods 0.000 description 2
- 230000008054 signal transmission Effects 0.000 description 2
- 238000012546 transfer Methods 0.000 description 2
- 230000001960 triggered effect Effects 0.000 description 2
- 238000013461 design Methods 0.000 description 1
- 238000001514 detection method Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000003287 optical effect Effects 0.000 description 1
- 230000001052 transient effect Effects 0.000 description 1
Images
Classifications
-
- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06K—GRAPHICAL DATA READING; PRESENTATION OF DATA; RECORD CARRIERS; HANDLING RECORD CARRIERS
- G06K7/00—Methods or arrangements for sensing record carriers, e.g. for reading patterns
- G06K7/0095—Testing the sensing arrangement, e.g. testing if a magnetic card reader, bar code reader, RFID interrogator or smart card reader functions properly
-
- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06K—GRAPHICAL DATA READING; PRESENTATION OF DATA; RECORD CARRIERS; HANDLING RECORD CARRIERS
- G06K7/00—Methods or arrangements for sensing record carriers, e.g. for reading patterns
- G06K7/10—Methods or arrangements for sensing record carriers, e.g. for reading patterns by electromagnetic radiation, e.g. optical sensing; by corpuscular radiation
- G06K7/10009—Methods or arrangements for sensing record carriers, e.g. for reading patterns by electromagnetic radiation, e.g. optical sensing; by corpuscular radiation sensing by radiation using wavelengths larger than 0.1 mm, e.g. radio-waves or microwaves
- G06K7/10237—Methods or arrangements for sensing record carriers, e.g. for reading patterns by electromagnetic radiation, e.g. optical sensing; by corpuscular radiation sensing by radiation using wavelengths larger than 0.1 mm, e.g. radio-waves or microwaves the reader and the record carrier being capable of selectively switching between reader and record carrier appearance, e.g. in near field communication [NFC] devices where the NFC device may function as an RFID reader or as an RFID tag
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04B—TRANSMISSION
- H04B17/00—Monitoring; Testing
- H04B17/20—Monitoring; Testing of receivers
- H04B17/21—Monitoring; Testing of receivers for calibration; for correcting measurements
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04B—TRANSMISSION
- H04B5/00—Near-field transmission systems, e.g. inductive or capacitive transmission systems
- H04B5/70—Near-field transmission systems, e.g. inductive or capacitive transmission systems specially adapted for specific purposes
- H04B5/72—Near-field transmission systems, e.g. inductive or capacitive transmission systems specially adapted for specific purposes for local intradevice communication
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04B—TRANSMISSION
- H04B5/00—Near-field transmission systems, e.g. inductive or capacitive transmission systems
- H04B5/70—Near-field transmission systems, e.g. inductive or capacitive transmission systems specially adapted for specific purposes
- H04B5/77—Near-field transmission systems, e.g. inductive or capacitive transmission systems specially adapted for specific purposes for interrogation
Landscapes
- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Signal Processing (AREA)
- Computer Networks & Wireless Communication (AREA)
- Toxicology (AREA)
- Health & Medical Sciences (AREA)
- Electromagnetism (AREA)
- Artificial Intelligence (AREA)
- Computer Vision & Pattern Recognition (AREA)
- General Physics & Mathematics (AREA)
- Theoretical Computer Science (AREA)
- General Health & Medical Sciences (AREA)
- Arrangements For Transmission Of Measured Signals (AREA)
Abstract
The application relates to the technical field of wireless communication, and discloses a method for determining a communication phase, which is applied to equipment to be calibrated and comprises the following steps: and acquiring a configuration file, and determining whether the equipment to be calibrated needs to carry out phase calibration according to the configuration file. And under the condition that phase calibration is needed, sending a plurality of second phase data to the calibration part, triggering the calibration part to determine target digital signal data according to the second phase data, and feeding back phase mark data corresponding to the target digital signal data. And under the condition of acquiring the phase mark data, determining a target phase value corresponding to the phase mark data, and communicating by using the target phase value. Therefore, a user does not need to input phase data manually, and the judgment is carried out by combining the oscillogram displayed by the oscilloscope without relying on manual experience, so that the automation degree when the communication phase of the equipment to be corrected is determined is improved. The application also discloses a system and a device for determining the communication phase, equipment to be calibrated and a calibration piece.
Description
Technical Field
The present application relates to the field of wireless communication technologies, and in particular, to a method, a system, an apparatus, a device to be calibrated, and a calibration unit for determining a communication phase.
Background
With the widespread application of the Near Field Communication function, a scene similar to that of an active PICC (Proximity Integrated Circuit Card) device waiting calibration of a smartphone NFC (Near Field Communication) is used in more and more life scenes. In order to solve the problem of optimizing the communication distance of the equipment to be calibrated, the phase calibration of the equipment to be calibrated is required, and the communication phase of the equipment to be calibrated is determined. Therefore, the PICC sending waveform is optimized, and the communication distance of the equipment to be calibrated is further optimized. In the related art, the transmitted phase is usually manually input, and then the waveform is checked by an oscilloscope, and 36 phases are traversed to find the optimal phase. However, this method relies on a professional debugger to manually input the phase and compare and check the multiple waveform diagrams, which results in poor automation of the user in determining the communication phase of the device to be calibrated.
Existing methods for determining the phase of communications include, for example: chinese patent document No. CN110598492a discloses a method for performing phase calibration on NFC equipment, which includes: receiving a reference signal generated by an NFC signal generator device; generating an active load modulation signal having a phase difference with respect to the reference signal of the NFC signal generator device, the phase difference provided by a register of the NFC device; measuring an amplitude of a test signal present at an antenna of the NFC device, the test signal generated by superimposing the reference signal with the active load modulation signal; modifying the value of the register until the measured amplitude meets a predefined condition; and storing a selected value corresponding to the value of the register that satisfies the predefined condition.
Chinese patent document No. CN107077581B discloses a method for phase calibration in a front-end circuit of an NFC tag device, the method having the following steps: receiving a reference signal generated by an NFC signal generator device, receiving a phase calibration command, generating an active load modulation signal having a preconfigured value of a phase difference with respect to the reference signal of the NFC signal generator device, measuring an amplitude of a test signal present at an antenna of the NFC tag device, the test signal being generated by superimposing the reference signal with the active load modulation signal, repeating the steps of: modifying a value of the phase difference, providing the active load modulation signal with the modified value of the phase difference, measuring an amplitude of the test signal, and comparing the measured amplitude with a previously measured amplitude or a reference amplitude until the measured amplitude meets a predefined condition. Storing a value of the phase difference corresponding to the previously measured amplitude. In the process of implementing the embodiments of the present disclosure, it is found that at least the following problems exist in the related art:
in the related art, when determining the communication phase of the device to be calibrated, the transmitted phase data is generally input manually, and then the waveform is checked by combining an oscilloscope, and 36 phases are traversed to find the optimal phase. However, this method relies on a professional debugger to manually input phase data, and requires a user to compare and check a plurality of oscillograms, which results in poor automation when determining the communication phase of the device to be calibrated.
It is noted that the information disclosed in the above background section is only for enhancement of understanding of the background of the application and therefore may include information that does not constitute prior art that is already known to a person of ordinary skill in the art.
Disclosure of Invention
The following presents a simplified summary in order to provide a basic understanding of some aspects of the disclosed embodiments. This summary is not an extensive overview nor is intended to identify key/critical elements or to delineate the scope of such embodiments but rather as a prelude to the more detailed description that is presented later.
The embodiment of the disclosure provides a method, a system and a device for determining a communication phase, equipment to be calibrated and a calibration piece, so that the automation degree of the communication phase of the equipment to be calibrated can be improved.
In some embodiments, a method for determining a communication phase is applied to a device to be calibrated, and the method includes: and acquiring a configuration file, and determining whether the equipment to be calibrated needs to carry out phase calibration according to the configuration file. Under the condition that phase calibration is needed, sending a plurality of second phase data to a calibration part, triggering the calibration part to determine target digital signal data according to the second phase data, and feeding back phase marking data corresponding to the target digital signal data; the target digital signal data is the same as reference data, and the reference data is the maximum value in the data obtained by performing analog-to-digital conversion on first phase data sent by the equipment to be corrected; the first phase data is phase data transmitted before the second phase data. And under the condition of acquiring the phase mark data, determining a target phase value corresponding to the phase mark data, and communicating by using the target phase value.
In some embodiments, the configuration file includes a preset byte for determining whether phase calibration is required; determining whether the equipment to be calibrated needs to be subjected to phase calibration according to the configuration file, wherein the step of determining comprises the following steps: determining that the equipment to be corrected needs to be subjected to phase calibration under the condition that a preset byte in the configuration file is a first preset byte; or, determining that the device to be calibrated does not need to perform phase calibration when the preset byte in the configuration file is a second preset byte.
In some embodiments, determining a target phase value corresponding to the phase marker data and communicating with the target phase value when the phase marker data is acquired includes: and under the condition of acquiring the phase mark data, determining a phase value in second phase data corresponding to the target digital signal data as a target phase value, and communicating by using the target phase value. In some embodiments, a method of determining a phase of communication is applied to a calibration piece, the method comprising: and receiving second phase data sent by the equipment to be corrected. And determining target digital signal data according to the second phase data, feeding back phase mark data corresponding to the target digital signal data, triggering the equipment to be corrected to determine a target phase value corresponding to the phase mark data, and communicating with the target phase value. The target digital signal data is the same as reference data, and the reference data is the maximum value in the data obtained by performing analog-to-digital conversion on first phase data sent by the equipment to be corrected; the first phase data is phase data transmitted before the second phase data.
In some embodiments, determining the target digital signal data from the second phase data comprises: and respectively carrying out analog-to-digital conversion on the second phase data to obtain digital signal data respectively corresponding to the second phase data. Determining the digital signal data identical to the reference data as target digital signal data.
In some embodiments, feeding back phase marker data corresponding to the target digital signal data comprises: and determining preset custom data as the phase mark data corresponding to the target digital signal data, and sending the phase mark data corresponding to the target digital signal data to equipment to be calibrated.
In some embodiments, a system for determining a phase of a communication, comprises: the device to be calibrated is used for acquiring a configuration file; determining whether the equipment to be calibrated needs to be subjected to phase calibration according to the configuration file; under the condition that phase calibration is needed, sending a plurality of second phase data to a calibration part, triggering the calibration part to determine target digital signal data according to the second phase data, and feeding back phase marking data corresponding to the target digital signal data; and under the condition of acquiring the phase mark data, determining a target phase value corresponding to the phase mark data, and communicating by using the target phase value. The target digital signal data is the same as reference data, and the reference data is the maximum value in the data obtained by performing analog-to-digital conversion on first phase data sent by the equipment to be corrected; the first phase data is phase data transmitted before the second phase data. The calibration piece is used for receiving second phase data sent by the equipment to be calibrated; and determining target digital signal data according to the second phase data, feeding back phase mark data corresponding to the target digital signal data, triggering the equipment to be corrected to determine a target phase value corresponding to the phase mark data, and communicating with the target phase value.
In some embodiments, the apparatus for determining a communication phase includes a first processor and a first memory storing program instructions, the first processor being configured to execute the method for determining a communication phase described above when executing the program instructions.
In some embodiments, the apparatus for determining a communication phase includes a second processor and a second memory storing program instructions, the second processor being configured to execute the method for determining a communication phase as described above when executing the program instructions.
In some embodiments, the apparatus to be calibrated comprises: a device body to be calibrated; the device for determining the communication phase is arranged on the equipment body to be calibrated.
In some embodiments, the calibration piece comprises: a calibration piece body; the device for determining the communication phase is mounted on the calibration member body.
The method, the system, the device, the equipment to be calibrated and the calibration piece for determining the communication phase provided by the embodiment of the disclosure can realize the following technical effects: and determining whether the equipment to be calibrated needs to carry out phase calibration according to the configuration file by acquiring the configuration file. And under the condition that phase calibration is needed, sending a plurality of second phase data to the calibration part, triggering the calibration part to determine target digital signal data according to the second phase data, and feeding back phase mark data corresponding to the target digital signal data. And under the condition of acquiring the phase mark data, determining a target phase value corresponding to the phase mark data, and communicating by using the target phase value. Under the condition that the equipment to be calibrated needs to be subjected to phase calibration, second phase data are automatically sent to the calibration piece, a target phase value is determined according to the fed back phase marking data, and communication is carried out according to the target phase value. Therefore, the phase data do not need to be input manually by a user, and the judgment is carried out by combining the oscillogram displayed by the oscilloscope without depending on manual experience, so that the automation degree when the communication phase of the equipment to be calibrated is determined is improved.
The foregoing general description and the following description are exemplary and explanatory only and are not restrictive of the application.
Drawings
One or more embodiments are illustrated by way of example in the accompanying drawings, which correspond to the accompanying drawings and not in limitation thereof, in which elements having the same reference numeral designations are shown as like elements and not in limitation thereof, and wherein:
fig. 1 is a schematic diagram of a first method for determining a communication phase according to an embodiment of the disclosure;
fig. 2 is a schematic diagram of a second method for determining a communication phase according to an embodiment of the disclosure;
FIG. 3 is a schematic diagram of a system for determining communication phase according to an embodiment of the present disclosure;
fig. 4 is a schematic structural diagram of a first apparatus for determining a communication phase according to an embodiment of the present disclosure;
fig. 5 is a schematic structural diagram of a second apparatus for determining a communication phase according to an embodiment of the disclosure;
FIG. 6 is a schematic structural diagram of a device to be calibrated according to an embodiment of the present disclosure;
fig. 7 is a schematic structural diagram of a calibration piece according to an embodiment of the present disclosure.
Reference numerals:
1: equipment to be calibrated; 2: and (4) calibrating the piece.
Detailed Description
So that the manner in which the features and advantages of the embodiments of the present disclosure can be understood in detail, a more particular description of the embodiments of the disclosure, briefly summarized above, may be had by reference to the appended drawings, which are included to illustrate, but are not intended to limit the embodiments of the disclosure. In the following description of the technology, for purposes of explanation, numerous details are set forth in order to provide a thorough understanding of the disclosed embodiments. However, one or more embodiments may be practiced without these details. In other instances, well-known structures and devices may be shown in simplified form in order to simplify the drawing.
The terms "first," "second," and the like in the description and in the claims, and the above-described drawings of embodiments of the present disclosure, are used for distinguishing between similar elements and not necessarily for describing a particular sequential or chronological order. It should be understood that the data so used may be interchanged under appropriate circumstances such that embodiments of the present disclosure described herein may be made. Furthermore, the terms "include" and "have," as well as any variations thereof, are intended to cover a non-exclusive inclusion.
The term "plurality" means two or more unless otherwise specified.
In the embodiment of the present disclosure, the character "/" indicates that the preceding and following objects are in an or relationship. For example, A/B represents: a or B.
The term "and/or" is an associative relationship that describes objects, meaning that three relationships may exist. For example, a and/or B, represents: a or B, or A and B.
The term "correspond" may refer to an association or binding relationship, and a corresponds to B refers to an association or binding relationship between a and B.
Referring to fig. 1, an embodiment of the present disclosure provides a method for determining a communication phase, which is applied to a device to be calibrated, where the method includes:
step S101, the equipment to be calibrated acquires a configuration file.
Step S102, the equipment to be calibrated determines whether the equipment to be calibrated needs to carry out phase calibration according to the configuration file.
Step S103, under the condition that the equipment to be calibrated needs to carry out phase calibration, sending a plurality of second phase data to the calibration part, triggering the calibration part to determine target digital signal data according to the second phase data, and feeding back phase marker data corresponding to the target digital signal data. The target digital signal data is the same as the reference data, and the reference data is the maximum value in the data obtained by performing analog-to-digital conversion on the first phase data sent by the equipment to be calibrated; the first phase data is phase data transmitted before the second phase data.
And step S104, under the condition that the equipment to be corrected acquires the phase mark data, determining a target phase value corresponding to the phase mark data, and communicating by using the target phase value.
By adopting the method for determining the communication phase provided by the embodiment of the disclosure, under the condition that the equipment to be calibrated needs to be subjected to phase calibration, the second phase data is automatically sent to the calibration piece, the target phase value is determined according to the fed back phase marker data, and communication is carried out according to the target phase value. Therefore, the phase data do not need to be input manually by a user, and the judgment is carried out by combining the oscillogram displayed by the oscilloscope without depending on manual experience, so that the automation degree when the communication phase of the equipment to be calibrated is determined is improved.
Optionally, the device to be calibrated is an active PICC of a smartphone NFC. In some embodiments, the configuration file is a document for configuring NFC chip functionality.
Further, the configuration file includes a preset byte for determining whether phase calibration is required. The method for determining whether the equipment to be calibrated needs phase calibration according to the configuration file comprises the following steps: and determining that the equipment to be corrected needs to carry out phase calibration under the condition that the preset byte in the configuration file is the first preset byte. Or, determining that the device to be corrected does not need to perform phase calibration under the condition that the preset byte in the configuration file is the second preset byte.
Further, when the device to be calibrated acquires the phase marker data, determining a target phase value corresponding to the phase marker data, and communicating with the target phase value, including: and under the condition that the equipment to be corrected acquires the phase marker data, determining a phase value in second phase data corresponding to the target digital signal data as a target phase value, and communicating by using the target phase value. The phase mark data is preset custom data 0x90.
In some embodiments, before sending a plurality of second phase data to the calibration part, the device to be calibrated sends a plurality of first phase data to the calibration part, the calibration part is triggered to perform analog-to-digital conversion on the received first phase data to obtain digital signal data corresponding to each first phase data, and a maximum value in the digital signal data corresponding to each first phase data is determined as reference data. Optionally, the device to be calibrated comprises 36 phases. The first phase data is second preset data transmitted at different phases. Wherein the second preset data is 0x55. Therefore, by traversing all phases of the equipment to be calibrated, the second preset data is sent to the calibration part once in each phase, and the calibration part can conveniently determine the reference data according to the received data.
In some embodiments, the device to be calibrated acquires a configuration file, and the device to be calibrated determines whether the device to be calibrated needs to perform phase calibration according to the configuration file. And under the condition that the equipment to be calibrated needs to carry out phase calibration, sending a plurality of first phase data to the calibration part, and triggering the calibration part to determine reference data according to the first phase data. And the equipment to be calibrated sends a plurality of second phase data to the calibration part, triggers the calibration part to determine the target digital signal data according to the second phase data and feeds back the phase mark data corresponding to the target digital signal data. Therefore, the device to be calibrated can also send a plurality of first phase data to the calibration piece before sending the second phase data, so that the calibration piece can determine the reference data conveniently. And the calibration piece can determine the target digital signal data which is the same as the reference data according to the second phase data. Meanwhile, the reference data is the maximum value in the data after the analog-to-digital conversion is performed on the first phase data sent by the device to be corrected, and the maximum value can truly reflect the optimal phase of the device to be corrected, namely the target phase value corresponding to the phase mark data. Therefore, the device to be calibrated can determine a target phase value according to the phase mark data fed back by the calibration piece and communicate with the target phase value according to the phase mark data. The phase of the equipment to be calibrated is optimal when the equipment to be calibrated sends signals, and the communication distance of the equipment to be calibrated is optimized.
Optionally, the device to be calibrated performs clock initialization and enters a waiting-to-receive mode when it is determined that phase calibration is required. In some embodiments, clock initialization is used to bring all components in the device to be calibrated to the same work readiness state. Optionally, the waiting for receiving mode includes receiving phase marker data corresponding to the first preset data and the target digital signal data sent by the calibration component. And the equipment to be calibrated feeds back the first phase data under the condition of receiving the first preset data, determines a target phase value corresponding to the phase mark data under the condition of receiving the phase mark data corresponding to the target digital signal data, and communicates by using the target phase value. The first phase data is second preset data which is sent at different phases every second preset time period. The second preset time period is 600us, the first preset data is 0xAA, and the second preset data is 0x55. Optionally, the device to be calibrated comprises 36 phases.
Optionally, the second phase data is second preset data sent at different phases every second preset time period.
Referring to fig. 2, an embodiment of the present disclosure provides a method for determining a communication phase, applied to a calibration component, the method including:
in step S201, the calibration component receives second phase data sent by the device to be calibrated.
Step S202, the calibration piece determines target digital signal data according to the second phase data, feeds back phase mark data corresponding to the target digital signal data, triggers the device to be calibrated to determine a target phase value corresponding to the phase mark data, and communicates with the target phase value. The target digital signal data is the same as the reference data, and the reference data is the maximum value in the data obtained by performing analog-to-digital conversion on the first phase data sent by the equipment to be calibrated; the first phase data is phase data transmitted before the second phase data.
By adopting the method for determining the communication phase provided by the embodiment of the disclosure, after receiving the second phase data sent by the equipment to be corrected, the calibration piece determines the target digital signal data according to the second phase data, and feeds back the phase marker data corresponding to the target digital signal data to the equipment to be corrected. Since the target digital signal data is the same data as the reference data, the reference data is the maximum value among the data after the analog-to-digital conversion of the first phase data. The maximum value can truly reflect the optimal phase of the device to be calibrated, namely the target phase value corresponding to the phase mark data. This facilitates the device to be calibrated to determine the target phase value from the phase marker data. The phase data do not need to be input manually by a user, and the judgment is carried out by combining the oscillogram displayed by the oscilloscope without depending on manual experience, so that the automation degree when the communication phase of the equipment to be corrected is determined is improved.
Further, the calibration component determines the target digital signal data according to the second phase data, including: and the calibration piece respectively carries out analog-to-digital conversion on the second phase data to obtain digital signal data respectively corresponding to the second phase data. The digital signal data identical to the reference data is determined as the target digital signal data.
Optionally, before the calibration unit receives the second phase data, the calibration unit further includes: the calibration piece receives first phase data sent by the equipment to be calibrated, and determines reference data according to the first phase data. The first phase data is the phase data sent by the device to be calibrated before the second phase data is sent.
Further, the calibration component determines reference data from the first phase data, including: the calibration part performs analog-to-digital conversion on the received first phase data to obtain digital signal data corresponding to each first phase data, and determines the maximum value in the digital signal data corresponding to each first phase data as reference data.
Further, the calibration part feeds back the phase mark data corresponding to the target digital signal data, and the phase mark data comprises: the calibration piece determines preset custom data as phase mark data corresponding to the target digital signal data, and sends the phase mark data corresponding to the target digital signal data to the equipment to be calibrated.
In some embodiments, the calibration component sends first preset data to the device to be calibrated, triggers the device to be calibrated to feed back the first phase data, and performs analog-to-digital conversion on the received first phase data to obtain digital signal data corresponding to each first phase data. And at intervals of a second preset time period, the equipment to be corrected sends first preset data to the equipment to be corrected, the equipment to be corrected is triggered to feed back a plurality of second phase data, and the calibration false performs analog-to-digital conversion on the received second phase data to obtain digital signal data corresponding to the second phase data. In the case where the second phase data identical to the reference data is obtained, the digital signal data identical to the reference data is determined as the target digital signal data. And determining the preset custom data as the phase mark data corresponding to the target digital signal data, and sending the phase mark data corresponding to the target digital signal data to the equipment to be calibrated. Wherein the preset custom data is 0x90.
Optionally, the calibration unit enters a data reading mode after sending the first preset data. The data reading mode is to receive phase data sent by the equipment to be calibrated, perform analog-to-digital conversion on the received phase data, and obtain digital signal data corresponding to each phase data. Wherein the phase data includes first phase data and second phase data.
Optionally, before the calibration unit receives the second phase data sent by the device to be calibrated, the calibration unit further includes: the calibration piece sends first preset data every other first preset time period in a preset coding mode, and triggers the equipment to be calibrated to feed back phase data. Wherein the predetermined coding format is a TYPEA (type A) format. The first preset time period is 100ms. The first preset data is 0xAA.
As shown in fig. 3, an embodiment of the present disclosure provides a system for determining a communication phase, including: a device 1 to be calibrated and a calibration piece 2.
The device to be calibrated 1 is used to obtain configuration files. And the equipment to be calibrated 1 determines whether the equipment to be calibrated needs to carry out phase calibration according to the configuration file. In case a phase calibration is required, the device 1 to be calibrated sends several second phase data to the calibration member 2. The trigger calibration part 2 determines the target digital signal data according to the second phase data and feeds back the phase marker data corresponding to the target digital signal data. Under the condition that the device to be calibrated 1 acquires the phase marker data, a target phase value corresponding to the phase marker data is determined, and communication is performed by using the target phase value. The target digital signal data is the same data as the reference data, and the reference data is the maximum value in the data obtained by performing analog-to-digital conversion on the first phase data sent by the device to be calibrated. The first phase data is phase data transmitted before the second phase data.
The calibration member 2 is used for receiving second phase data sent by the equipment to be calibrated. The calibration piece 2 determines target digital signal data according to the second phase data, feeds back phase mark data corresponding to the target digital signal data, triggers the device to be calibrated to determine a target phase value corresponding to the phase mark data, and communicates with the target phase value.
By adopting the system for determining the communication phase, whether phase calibration is needed or not is determined by the equipment to be calibrated according to the configuration file, and under the condition that the phase calibration is needed, second phase data is sent to the calibration part, and the calibration part determines and determines target digital signal data according to the second phase data and feeds back phase marker data corresponding to the target digital signal data. And the equipment to be corrected determines a target phase value corresponding to the phase mark data and communicates with the target phase value. Since the target digital signal data is the same data as the reference data, the reference data is the maximum value among the data after the analog-to-digital conversion of the first phase data. The maximum value can truly reflect the optimal phase of the device to be calibrated, namely the target phase value corresponding to the phase mark data. Therefore, the communication phase of the equipment to be calibrated can be conveniently and quickly determined. The phase data do not need to be input manually by a user, and the judgment is carried out by combining the oscillogram displayed by the oscilloscope without depending on manual experience, so that the automation degree when the communication phase of the equipment to be corrected is determined is improved.
In some embodiments, the device to be calibrated is subjected to system clock initialization, field detection initialization protocol PICC initialization, and the like. The calibration piece is initialized, the radio frequency field is opened, and the calibration piece enters the position right above the antenna of the equipment to be calibrated. And under the condition that the equipment to be calibrated identifies the existence of the radio frequency field, acquiring a configuration file, and determining whether the equipment to be calibrated needs to carry out phase calibration according to the configuration file. And entering a waiting receiving mode under the condition that the equipment to be calibrated needs to carry out phase calibration. The calibration piece sends first preset data 0xAA to the equipment to be calibrated once every 100ms of a first preset time period. The calibration piece then enters a data reading mode. After receiving the first preset data 0xAA, the device to be calibrated sends the first phase data to the calibration component, that is, traverses all phases, and sends the second preset data 0x55 to the calibration component once every second preset time period 600 us. The calibration part carries out analog-to-digital conversion on the received first phase data to obtain digital signal data corresponding to each first phase data. The calibration unit determines the maximum value of the digital signal data corresponding to each of the first phase data as reference data. After the first preset time period of 100ms, after the device to be calibrated receives the first preset data 0xAA sent by the calibration part again, the device to be calibrated sends second phase data to the calibration part, that is, all phases are traversed, and second preset data 0x55 is sent to the calibration part once every second preset time period of 600 us. And the calibration piece performs analog-to-digital conversion on the received second phase data to obtain digital signal data corresponding to each second phase data. After acquiring the digital signal data corresponding to the second phase data identical to the reference data, the calibration component determines the digital signal data identical to the reference data as the target digital signal data. The calibration piece determines preset custom data 0x90 as phase mark data corresponding to the target digital signal data, and sends the phase mark data corresponding to the target digital signal data to the equipment to be calibrated. After receiving the phase marker data 0x90, the device to be calibrated determines the phase value in the second phase data corresponding to the target digital signal data as the target phase value, and communicates with the target phase value.
In some embodiments, in the digital signal data corresponding to each first phase data, the reference data is data obtained by performing analog-to-digital conversion on second preset data 0x55 sent at the 7 th phase in the device to be calibrated. Among the digital signal data corresponding to each second phase data, the digital signal data identical to the reference data is data obtained by performing analog-to-digital conversion on second preset data 0x55 transmitted at the 8 th phase. The data is determined as the target digital signal data. And determining 0x90 of the preset custom data as the phase mark data corresponding to the target digital signal data, and sending the phase mark data corresponding to the target digital signal data to the equipment to be calibrated. And the device to be corrected determines the phase value of the 8 th phase in the second phase data corresponding to the target digital signal data as the target phase value.
Optionally, the calibration component determines the target digital signal data from the second phase data, including: and the calibration piece respectively carries out analog-to-digital conversion on the second phase data to obtain digital signal data respectively corresponding to the second phase data. When the digital signal data corresponding to each second phase data does not include the same digital signal data as the reference data, the maximum value among the digital signal data corresponding to each second phase data is determined as the first candidate data. Differences between the reference data and the alternative data are obtained. And determining the reference data range according to the difference. The calibration piece sends first preset data to the equipment to be calibrated, and triggers the equipment to be calibrated to feed back third phase data. And the calibration part respectively performs analog-to-digital conversion on each third phase data to obtain digital signal data respectively corresponding to each third phase data. And determining the maximum value in the digital signal data respectively corresponding to the third phase data as second candidate data, and determining the second candidate data as target digital signal data when the second candidate data is in the reference data range.
Optionally, the first phase data is second preset data sent every second preset time period after the device to be calibrated receives the first preset data and traverses all phases for the first time. And the second phase data is second preset data which is sent every second preset time period after the equipment to be calibrated traverses all the phases for the second time after receiving the first preset data. And the third phase data is second preset data which is sent every second preset time period after the equipment to be corrected traverses all the phases for the third time after receiving the first preset data.
Referring to fig. 4, an apparatus 200 for determining a communication phase according to an embodiment of the present disclosure includes a first processor (processor) 400 and a first memory (memory) 401. Optionally, the apparatus may also include a first Communication Interface 402 and a first bus 403. The first processor 400, the first communication interface 402 and the first memory 401 may communicate with each other through a first bus 403. The first communication interface 402 may be used for information transfer. The first processor 400 may call logic instructions in the first memory 401 to perform the method for determining the communication phase according to the above embodiment.
By adopting the device for determining the communication phase provided by the embodiment of the disclosure, under the condition that the equipment to be calibrated needs to be subjected to phase calibration, the second phase data is automatically sent to the calibration piece, the target phase value is determined according to the fed back phase marker data, and communication is carried out according to the target phase value. Therefore, the phase data do not need to be input manually by a user, and the judgment is carried out by combining the oscillogram displayed by the oscilloscope without depending on manual experience, so that the automation degree when the communication phase of the equipment to be calibrated is determined is improved.
In addition, the logic instructions in the first memory 401 may be implemented in the form of software functional units and may be stored in a computer readable storage medium when the logic instructions are sold or used as independent products.
The first memory 401 is a computer-readable storage medium, and can be used for storing software programs, computer-executable programs, such as program instructions/modules corresponding to the methods in the embodiments of the present disclosure. The first processor 400 executes functional applications and data processing by executing program instructions/modules stored in the first memory 401, that is, implements the method for determining the communication phase in the above-described embodiments.
The first memory 401 may include a storage program area and a storage data area, wherein the storage program area may store an operating system, an application program required for at least one function; the storage data area may store data created according to the use of the terminal device, and the like. In addition, the first memory 401 may include a high-speed random access memory, and may further include a nonvolatile memory.
Referring to fig. 5, an apparatus 300 for determining a communication phase according to an embodiment of the present disclosure includes a second processor (processor) 500 and a second memory (memory) 501. Optionally, the apparatus may further include a second Communication Interface (Communication Interface) 502 and a second bus 503. The second processor 500, the second communication interface 502, and the second memory 501 may complete communication with each other through the second bus 503. The second communication interface 502 may be used for information transfer. The second processor 300 may call the logic instructions in the second memory 501 to execute the method for determining the communication phase according to the above embodiment.
By adopting the device for determining the communication phase provided by the embodiment of the disclosure, after the calibration piece receives the second phase data sent by the equipment to be calibrated, the target digital signal data is determined according to the second phase data, and the phase marker data corresponding to the target digital signal data is fed back to the equipment to be calibrated. Since the target digital signal data is the same data as the reference data, the reference data is the maximum value among the data after the analog-to-digital conversion of the first phase data. The maximum value can truly reflect the optimal phase of the device to be calibrated, namely the target phase value corresponding to the phase mark data. This facilitates the device to be calibrated to determine the target phase value from the phase marker data. The phase data do not need to be input manually by a user, and the judgment is carried out by combining the oscillogram displayed by the oscilloscope without depending on manual experience, so that the automation degree when the communication phase of the equipment to be corrected is determined is improved.
In addition, the logic instructions in the second memory 501 may be implemented in the form of software functional units and may be stored in a computer readable storage medium when the logic instructions are sold or used as independent products.
The second memory 501 is used as a computer-readable storage medium for storing software programs, computer-executable programs, such as program instructions/modules corresponding to the methods in the embodiments of the present disclosure. The second processor 500 executes functional applications and data processing by executing program instructions/modules stored in the second memory 501, that is, implements the method for determining the communication phase in the above embodiments.
The second memory 501 may include a storage program area and a storage data area, wherein the storage program area may store an operating system, an application program required for at least one function; the storage data area may store data created according to the use of the terminal device, and the like. In addition, the second memory 501 may include a high-speed random access memory and may also include a nonvolatile memory.
As shown in fig. 6, an embodiment of the present disclosure provides a device to be calibrated 1, including: the device to be calibrated and the above-mentioned device 200 for determining the communication phase, the device 200 for determining the communication phase is installed on the device to be calibrated. The installation relationship stated herein is not limited to being placed inside the product, but also includes installation connection with other components of the product, including but not limited to physical connection, electrical connection, or signal transmission connection. It will be appreciated by those skilled in the art that the apparatus 200 for determining communication phase may be adapted to a feasible product body, thereby implementing other feasible embodiments.
Optionally, the device to be calibrated includes electronic devices such as an active PICC of NFC in a smart phone and an active PICC of NFC in a tablet computer.
By adopting the device to be calibrated provided by the embodiment of the disclosure, under the condition that the device to be calibrated needs to be subjected to phase calibration, the second phase data is automatically sent to the calibration piece, and the target phase value is determined according to the fed back phase marker data, and communication is carried out according to the target phase value. Therefore, the phase data do not need to be input manually by a user, and the judgment is carried out by combining the oscillogram displayed by the oscilloscope without depending on manual experience, so that the automation degree when the communication phase of the equipment to be calibrated is determined is improved.
As shown in fig. 7, an embodiment of the present disclosure provides a calibration piece 2, including: the calibration piece body, and the above-mentioned device 300 for determining the communication phase, the device 300 for determining the communication phase is mounted to the calibration piece body. The installation relationship stated herein is not limited to being placed inside the product, but also includes installation connection with other components of the product, including but not limited to physical connection, electrical connection, or signal transmission connection. It will be appreciated by those skilled in the art that the apparatus 300 for determining communication phase may be adapted to a feasible product body, thereby implementing other feasible embodiments.
By adopting the calibration piece provided by the embodiment of the disclosure, after receiving the second phase data sent by the equipment to be calibrated, the calibration piece determines the target digital signal data according to the second phase data, and feeds back the phase marker data corresponding to the target digital signal data to the equipment to be calibrated. Since the target digital signal data is the same data as the reference data, the reference data is the maximum value among the data after the analog-to-digital conversion of the first phase data. The maximum value can truly reflect the optimal phase of the device to be calibrated, namely the target phase value corresponding to the phase mark data. This facilitates the device to be calibrated to determine the target phase value from the phase marker data. The phase data do not need to be input manually by a user, and the judgment is carried out by combining the oscillogram displayed by the oscilloscope without depending on manual experience, so that the automation degree when the communication phase of the equipment to be corrected is determined is improved.
The disclosed embodiments provide a storage medium storing program instructions that, when executed, perform the above-described method for determining a communication phase.
Embodiments of the present disclosure provide a computer program product comprising a computer program stored on a computer readable storage medium, the computer program comprising program instructions which, when executed by a computer, cause the computer to perform the above-described method for determining a communication phase.
The computer-readable storage medium described above may be a transitory computer-readable storage medium or a non-transitory computer-readable storage medium.
The technical solution of the embodiments of the present disclosure may be embodied in the form of a software product, where the computer software product is stored in a storage medium and includes one or more instructions to enable a computer device (which may be a personal computer, a server, or a network device) to execute all or part of the steps of the method of the embodiments of the present disclosure. And the aforementioned storage medium may be a non-transitory storage medium comprising: a U-disk, a removable hard disk, a Read-Only Memory (ROM), a Random Access Memory (RAM), a magnetic disk or an optical disk, and other various media capable of storing program codes, and may also be a transient storage medium.
The above description and drawings sufficiently illustrate embodiments of the disclosure to enable those skilled in the art to practice them. Other embodiments may incorporate structural, logical, electrical, process, and other changes. The examples merely typify possible variations. Individual components and functions are optional unless explicitly required, and the sequence of operations may vary. Portions and features of some embodiments may be included in or substituted for those of others. Furthermore, the words used in the specification are words of description for example only and are not limiting upon the claims. As used in the description of the embodiments and the claims, the singular forms "a", "an" and "the" are intended to include the plural forms as well, unless the context clearly indicates otherwise. Similarly, the term "and/or" as used in this application is meant to encompass any and all possible combinations of one or more of the associated listed. Furthermore, the terms "comprises" and/or "comprising," when used in this application, specify the presence of stated features, integers, steps, operations, elements, and/or components, but do not preclude the presence or addition of one or more other features, integers, steps, operations, elements, components, and/or groups thereof. Without further limitation, an element defined by the phrase "comprising a …" does not exclude the presence of additional like elements in a process, method, or apparatus that comprises the element. In this document, each embodiment may be described with emphasis on differences from other embodiments, and the same and similar parts between the respective embodiments may be referred to each other. For methods, products, etc. of the embodiment disclosures, reference may be made to the description of the method section for relevance if it corresponds to the method section of the embodiment disclosure.
Those of skill in the art would appreciate that the various illustrative elements and algorithm steps described in connection with the embodiments disclosed herein may be implemented as electronic hardware, or combinations of computer software and electronic hardware. Whether such functionality is implemented as hardware or software may depend upon the particular application and design constraints imposed on the solution. Skilled artisans may implement the described functionality in varying ways for each particular application, but such implementation decisions should not be interpreted as causing a departure from the scope of the disclosed embodiments. It can be clearly understood by the skilled person that, for convenience and brevity of description, the specific working processes of the apparatus and the unit described above may refer to the corresponding processes in the foregoing method embodiments, and are not described herein again.
In the embodiments disclosed herein, the disclosed methods, products (including but not limited to devices, apparatuses, etc.) may be implemented in other ways. For example, the above-described apparatus embodiments are merely illustrative, and for example, the division of the units may be merely a logical division, and in actual implementation, there may be another division, for example, multiple units or components may be combined or integrated into another system, or some features may be omitted, or not executed. In addition, the shown or discussed mutual coupling or direct coupling or communication connection may be an indirect coupling or communication connection through some interfaces, devices or units, and may be in an electrical, mechanical or other form. The units described as separate parts may or may not be physically separate, and parts displayed as units may or may not be physical units, may be located in one place, or may be distributed on a plurality of network units. Some or all of the units can be selected according to actual needs to implement the present embodiment. In addition, functional units in the embodiments of the present disclosure may be integrated into one processing unit, or each unit may exist alone physically, or two or more units are integrated into one unit.
The flowchart and block diagrams in the figures illustrate the architecture, functionality, and operation of possible implementations of methods and computer program products according to embodiments of the present disclosure. In this regard, each block in the flowchart or block diagrams may represent a module, segment, or portion of code, which comprises one or more executable instructions for implementing the specified logical function(s). In some alternative implementations, the functions noted in the block may occur out of the order noted in the figures. For example, two blocks shown in succession may, in fact, be executed substantially concurrently, or the blocks may sometimes be executed in the reverse order, depending upon the functionality involved. In the description corresponding to the flowcharts and block diagrams in the figures, operations or steps corresponding to different blocks may also occur in different orders than disclosed in the description, and sometimes there is no specific order between different operations or steps. For example, two sequential operations or steps may in fact be executed substantially concurrently, or they may sometimes be executed in the reverse order, depending upon the functionality involved. Each block of the block diagrams and/or flowchart illustrations, and combinations of blocks in the block diagrams and/or flowchart illustrations, can be implemented by special purpose hardware-based systems that perform the specified functions or acts, or combinations of special purpose hardware and computer instructions.
Claims (11)
1. A method for determining communication phase, applied to a device to be calibrated, the method comprising:
acquiring a configuration file;
determining whether the equipment to be calibrated needs to be subjected to phase calibration according to the configuration file;
under the condition that phase calibration is needed, sending a plurality of second phase data to a calibration part, triggering the calibration part to determine target digital signal data according to the second phase data, and feeding back phase marker data corresponding to the target digital signal data; the target digital signal data is the same as reference data, and the reference data is the maximum value in the data obtained by performing analog-to-digital conversion on first phase data sent by the equipment to be corrected; the first phase data is phase data transmitted before the second phase data;
and under the condition of acquiring the phase mark data, determining a target phase value corresponding to the phase mark data, and communicating by using the target phase value.
2. The method according to claim 1, wherein the configuration file includes a preset byte for determining whether phase calibration is required; determining whether the equipment to be calibrated needs to be subjected to phase calibration according to the configuration file, wherein the step of determining comprises the following steps:
determining that the equipment to be corrected needs to be subjected to phase calibration under the condition that a preset byte in the configuration file is a first preset byte; or the like, or a combination thereof,
and under the condition that the preset byte in the configuration file is a second preset byte, determining that the equipment to be corrected does not need to be subjected to phase calibration.
3. The method of claim 1, wherein determining a target phase value corresponding to the phase marker data and communicating the target phase value when the phase marker data is acquired comprises:
and under the condition of acquiring the phase marker data, determining a phase value in second phase data corresponding to the target digital signal data as a target phase value, and communicating by using the target phase value.
4. A method of determining a phase of communication, applied to a calibration member, the method comprising:
receiving second phase data sent by equipment to be calibrated;
determining target digital signal data according to the second phase data, feeding back phase mark data corresponding to the target digital signal data, triggering the equipment to be corrected to determine a target phase value corresponding to the phase mark data, and communicating with the target phase value; the target digital signal data is the same as reference data, and the reference data is the maximum value in the data obtained by performing analog-to-digital conversion on first phase data sent by the equipment to be corrected; the first phase data is phase data transmitted before the second phase data.
5. The method of claim 4, wherein determining target digital signal data from the second phase data comprises:
respectively performing analog-to-digital conversion on each second phase data to obtain digital signal data corresponding to each second phase data;
determining the digital signal data identical to the reference data as target digital signal data.
6. The method of claim 4, wherein feeding back phase marker data corresponding to the target digital signal data comprises:
and determining preset custom data as phase mark data corresponding to the target digital signal data, and sending the phase mark data corresponding to the target digital signal data to equipment to be calibrated.
7. A system for determining a phase of a communication, comprising:
the device to be calibrated is used for acquiring a configuration file; determining whether the equipment to be calibrated needs to be subjected to phase calibration according to the configuration file; under the condition that phase calibration is needed, sending a plurality of second phase data to a calibration part, triggering the calibration part to determine target digital signal data according to the second phase data, and feeding back phase marking data corresponding to the target digital signal data; under the condition of acquiring the phase marker data, determining a target phase value corresponding to the phase marker data, and communicating by using the target phase value; the target digital signal data is the same as reference data, and the reference data is the maximum value in the data obtained by performing analog-to-digital conversion on first phase data sent by the equipment to be corrected; the first phase data is phase data transmitted before the second phase data;
the calibration piece is used for receiving second phase data sent by the equipment to be calibrated; and determining target digital signal data according to the second phase data, feeding back phase mark data corresponding to the target digital signal data, triggering the equipment to be corrected to determine a target phase value corresponding to the phase mark data, and communicating with the target phase value.
8. An apparatus for determining a phase of a communication, comprising a first processor and a first memory having stored thereon program instructions, wherein the first processor is configured, upon execution of the program instructions, to perform a method of determining a phase of a communication according to any one of claims 1 to 3.
9. An apparatus for determining a phase of a communication, comprising a second processor and a second memory having stored thereon program instructions, wherein the second processor is configured, upon execution of the program instructions, to perform a method of determining a phase of a communication according to any one of claims 4 to 6.
10. An apparatus to be calibrated, comprising:
a device body to be calibrated;
the apparatus for determining communication phase according to claim 8, being mounted to the device body to be calibrated.
11. A calibration member, comprising:
a calibration piece body;
an apparatus for determining phase of communications according to claim 9 mounted to said calibration piece body.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202211446982.8A CN115589240B (en) | 2022-11-18 | 2022-11-18 | Method, system and device for determining communication phase, equipment to be calibrated and calibration piece |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202211446982.8A CN115589240B (en) | 2022-11-18 | 2022-11-18 | Method, system and device for determining communication phase, equipment to be calibrated and calibration piece |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN115589240A CN115589240A (en) | 2023-01-10 |
| CN115589240B true CN115589240B (en) | 2023-03-24 |
Family
ID=84782967
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202211446982.8A Active CN115589240B (en) | 2022-11-18 | 2022-11-18 | Method, system and device for determining communication phase, equipment to be calibrated and calibration piece |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN115589240B (en) |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2016026605A1 (en) * | 2014-08-22 | 2016-02-25 | Ams Ag | Method for a phase calibration in a frontend circuit of a near field communication, nfc, tag device, frontend circuit and nfc tag device |
| CN107017901A (en) * | 2015-12-09 | 2017-08-04 | 恩智浦有限公司 | Method and apparatus for the phase alignment by active load modulation |
| CN111222354A (en) * | 2018-11-27 | 2020-06-02 | 三星电子株式会社 | Near field communication circuit and operation method thereof |
-
2022
- 2022-11-18 CN CN202211446982.8A patent/CN115589240B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2016026605A1 (en) * | 2014-08-22 | 2016-02-25 | Ams Ag | Method for a phase calibration in a frontend circuit of a near field communication, nfc, tag device, frontend circuit and nfc tag device |
| CN107077581A (en) * | 2014-08-22 | 2017-08-18 | 意法半导体国际有限公司 | Method, front-end circuit and NFC label equipment for carrying out phase alignment in the front-end circuit of near-field communication NFC label equipment |
| CN110598492A (en) * | 2014-08-22 | 2019-12-20 | 意法半导体国际有限公司 | Method, device and system for phase calibration of Near Field Communication (NFC) device |
| CN107017901A (en) * | 2015-12-09 | 2017-08-04 | 恩智浦有限公司 | Method and apparatus for the phase alignment by active load modulation |
| CN111222354A (en) * | 2018-11-27 | 2020-06-02 | 三星电子株式会社 | Near field communication circuit and operation method thereof |
Also Published As
| Publication number | Publication date |
|---|---|
| CN115589240A (en) | 2023-01-10 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN105813115B (en) | WIFI network configuration method and device | |
| CN107766900B (en) | Method, system and computing device for printing bar code | |
| US8442586B2 (en) | Determining USB/ISO interface and power supply voltage in mobile device | |
| EP1897243B1 (en) | Rfid optimized capability negotiation | |
| US9413427B2 (en) | Emulation of multiple devices in an NFC device | |
| CN108288008B (en) | Card activation method and device | |
| CN103619054A (en) | Method and device for selecting network frequency band and router | |
| CN106101989A (en) | A kind of method selecting safe unit and mobile terminal | |
| CN115242368B (en) | Method and device for adjusting phase, near field communication equipment and storage medium | |
| US20150235061A1 (en) | Tag reading apparatus and method, tag identification system | |
| CN105444757A (en) | Navigation path generation method based on airport indoor environment and user terminal | |
| CN115589240B (en) | Method, system and device for determining communication phase, equipment to be calibrated and calibration piece | |
| EP3104658B1 (en) | Operation environment setting system for electronic device and program for setting operation environment | |
| CN110289890B (en) | Near field communication test method, system, mobile terminal and storage medium | |
| CN116739022A (en) | Decoding method and device for bar code image and electronic equipment | |
| CN108037680B (en) | Instruction processing method and device | |
| CN111491267A (en) | Gateway and data transmission method | |
| CN106507268B (en) | Method and device for dynamic verification in mobile phone carriers | |
| CN115765803B (en) | Radio frequency parameter setting method for NFC (near field communication) equipment and NFC equipment | |
| CN111736859B (en) | Version updating method of operating system, server and terminal | |
| CN112084076A (en) | Test method, electronic device, and storage medium | |
| CN115580322B (en) | Method and apparatus for detecting failure, near field communication apparatus, and storage medium | |
| CN101854195A (en) | Computing circuit, signal selection method and computer program | |
| CN105873021B (en) | It is a kind of to provide the method, apparatus and terminal in reliability time source for SIM card | |
| CN113412487A (en) | Communication system and communication method of communication system |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |