CN111610391A - Power supply efficiency detection method applied to NFC wireless power supply technology - Google Patents
Power supply efficiency detection method applied to NFC wireless power supply technology Download PDFInfo
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R31/00—Arrangements for testing electric properties; Arrangements for locating electric faults; Arrangements for electrical testing characterised by what is being tested not provided for elsewhere
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
- H02J50/00—Circuit arrangements or systems for wireless supply or distribution of electric power
- H02J50/20—Circuit arrangements or systems for wireless supply or distribution of electric power using microwaves or radio frequency waves
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Abstract
The invention discloses a power supply efficiency detection method applied to an NFC wireless power supply technology, relates to the field of NFC wireless power supply, in particular to the NFC wireless power supply efficiency detection technology, and is characterized in that: the output efficiency detection method comprises a power supply power measurement method and a power supply position identification method; the power supply efficiency detection method and the power supply position identification method both need to comprise a mobile terminal and a target device for combined use, and the target device comprises: the NFC antenna comprises an antenna, an NFC module and a power detection module, wherein the antenna is connected with the NFC module, and the NFC module is connected with the function detection module; the invention realizes the measurement and prompt adjustment of the NFC output power of the mobile terminal to the power supply position, achieves the optimal power supply position and improves the use embodiment sense of a user on the target equipment.
Description
Technical Field
The invention relates to the field of NFC wireless power supply, in particular to a NFC wireless power supply efficiency detection technology.
Background
Near Field Communication (Near Field Communication, NFC for short), in recent years, the NFC technology is receiving more and more attention, and besides the well-known and used application scenarios that a mobile phone is used as a smart card to complete card swiping, unlocking, payment and the like through the NFC function of the mobile phone, services developed based on NFC radio frequency signals to realize the wireless power supply technology gradually enter the sight of people, for example: NFC three-way (power-free, networking-free, maintenance-free) smart locks, NFC sealed locks, NFC mailboxes, and the like (hereinafter collectively referred to as target devices).
Principle of NFC power supply: the device initiating power supply is mostly a mobile phone, a tablet personal computer and the like (hereinafter referred to as a mobile terminal) in daily life, and the mobile terminal provides energy for the target device by using the NFC radio frequency field and sends data to the target device through the NFC radio frequency signal. The target equipment converts the radio frequency field generated by the mobile terminal into electric energy, supplies power to circuits and plug-in devices (such as a motor and an electromagnetic valve) of the target equipment, receives data sent by the mobile terminal, and transmits the data of the target equipment back to the mobile terminal at the same speed by using a load modulation technology.
NFC is a short-range high-frequency radio technology, the communication distance of NFCIP is regulated to be within 10 centimeters by NFCIP-1 standard, but there is no unified NFC power supply technical standard temporarily, different mobile terminal NFC antenna positions are different, the size and the signal intensity of NFC antenna are different, because the transmission distance is short and the signal range and the intensity can not be visualized, when NFC power supply operation is carried out, the user can not learn the best power supply output position of the current mobile terminal, the position of power supply can only be judged by intuition, the electric energy obtained by target equipment can not reach the original design requirement frequently, the user embodies poor feeling, and even the target equipment can not be used normally.
Disclosure of Invention
The invention provides an output efficiency detection method based on NFC wireless power supply, which is used for measuring the NFC output power of a mobile terminal, and improving the use sense of a user when the user performs NFC wireless power supply on target equipment in an NFC signal area where the user finely adjusts the position of the mobile terminal to achieve the optimal power supply.
The invention provides a power supply efficiency detection method applied to an NFC wireless power supply technology, wherein the output efficiency detection method comprises a power supply power determination method and a power supply position identification method;
the power supply efficiency detection method and the power supply position identification method both need to comprise a mobile terminal and a target device for combined use, and the target device comprises: the antenna is connected with the NFC module, and the NFC module is connected with the function detection module.
The power supply efficiency detection method comprises the steps that a mobile terminal moves at different positions of a target device group and establishes NFC signal communication, an antenna transmits an NFC signal from the mobile terminal to an NFC module, the NFC module converts energy in the NFC signal into electric power and transmits the electric power to a power detection module, the power detection module feeds power supply efficiency related detection data of the current position of the mobile terminal back to the NFC module in real time, the NFC module feeds detection data representing wireless power supply output efficiency back to APP software of the mobile terminal through the antenna, and the APP software records the maximum output power value M in the detection data and model identity information of the mobile terminal.
The purpose of the power supply power measuring method is to record the maximum output power value M and the identity information of the mobile terminal to prepare for the power supply position identification method.
According to the power supply position identification method, the APP software of the mobile terminal verifies the identity information of the mobile terminal model in the power supply efficiency detection method, after the identity information is verified, NFC signal communication is established between the mobile terminal and target equipment, the target equipment feeds the output power value N of real-time detection data back to the APP software of the mobile terminal, whether the output power value N of the APP software passes through the real-time detection data and the maximum output power M recorded in the power supply efficiency detection method is in a reasonable range or not is determined, the output power value N is in the reasonable range, the APP of the terminal prompts that the current position is suitable, the current position is kept, and power supply operation is carried out.
The purpose of the power supply location identification method is that the user provides the correct power supply location.
The power supply position identification method comprises the following verification failure conditions and processing methods:
the method comprises the following steps that in the first failure condition, identity information verification of the mobile terminal fails, APP software of the mobile terminal returns to the operation of the power supply efficiency detection method, and the maximum output power value M is recorded again;
and under the second failure condition, the real-time output power value N is not in the reasonable range of the maximum output power M, the APP software of the mobile terminal prompts a user to readjust the position of the mobile terminal until the real-time output power value N is in the reasonable range of the maximum output power M, and then power supply operation is carried out.
Preferably, the detection data includes charging period, time, voltage and power of power output, and the calculation method of the maximum output power value M includes one of an output voltage calculation method and a charging period calculation method;
the power detection module comprises one of an ADC and a load element;
the antenna includes a coil coupling.
The identity information of the mobile terminal comprises one or more of a hardware serial number, geographical position information, networking information hardware serial number and a hardware model.
The method for setting the reasonable range comprises the following steps: according to the actual power setting (the maximum output power M-the output power value N)/the maximum output power M which is needed by the work of the target equipment, the method is one of the two setting methods that the maximum output power M is more than or equal to 5 percent.
Preferably, the output voltage calculation method is that, under the same circuit condition, the higher the output voltage of the constant load measured by the ADC after charging is, that is, the higher the output power is, the more suitable the position of the mobile terminal and the position of the target device are represented.
Preferably, the charging period is calculated by indicating that the position of the mobile terminal is more suitable for the position of the target device when the charging rise time of the load element is faster and the charging period is shorter, that is, the output power is higher under the condition of the same circuit and the same output voltage.
The power supply efficiency detection method comprises the following operation steps:
the measuring step is that the mobile terminal is close to the target equipment,
a measuring step of converting the NFC signal into electric energy by the target equipment,
measuring step c, the target device calculates the output power and returns the output power to the mobile terminal,
a measuring step (iv) of slowly moving the mobile terminal, measuring the output power of different positions by the target device,
and the APP software records the maximum output power M and the identity information of the mobile terminal.
The power supply position identification method comprises the following operation steps:
the power supply step is that APP software detects the identity information of the mobile terminal,
a power supply step, namely, the mobile terminal is close to the target equipment,
the power supply step (c) is that the target device measures the real-time output power value N,
the power supply step (iv) the APP software analyzes whether the output power value N is within the reasonable range of the maximum output power M,
the APP software prompts the current position to be proper and the poetry position to be ensured,
a power supply step sixth, power supply control operation is carried out;
detecting that the identity information of the mobile terminal does not conform to the power supply step, and returning to output power measurement;
and in the power supply step (iv), if the output power value N is not within the reasonable range of the maximum output power M, prompting the user to readjust the position of the mobile terminal until the real-time power value N is within the reasonable range of the maximum output power M, and then performing power supply operation.
Drawings
The invention is further described below with reference to the accompanying drawings and examples.
Fig. 1 is a schematic diagram illustrating operation steps of the power supply performance detection method according to the present invention.
Fig. 2 is a schematic diagram of the operation steps of the power supply position identification method of the present invention.
Fig. 3 is a schematic circuit diagram of the output voltage calculation method for the target device according to the present invention.
FIG. 4 is a schematic diagram of an output voltage calculation method according to the present invention.
FIG. 5 is a schematic circuit diagram of a charging cycle calculation method for a target device of the present invention.
FIG. 6 is a schematic diagram of a charging period calculation method according to the present invention.
FIG. 7 is an operation interface for APP software output power measurement according to the present invention.
FIG. 8 is an operation interface for APP software power supply location identification according to the present invention.
FIG. 9 is an operation interface for APP software power supply position identification.
Detailed Description
The invention will be further described with reference to the accompanying drawings in which:
implementation 1: as shown in fig. 1-4 and 7-8: a power supply efficiency detection method applied to an NFC wireless power supply technology is disclosed, wherein the output efficiency detection method comprises a power supply power determination method and a power supply position identification method;
the power supply efficiency detection method and the power supply position identification method both need to comprise a mobile terminal and a target device for combined use, and the target device comprises: the antenna is connected with the NFC module, and the NFC module is connected with the function detection module.
According to the power supply efficiency detection method, the mobile terminal moves at different positions of a target equipment group and establishes NFC signal communication, an antenna transmits an NFC signal from the mobile terminal to an NFC module, the NFC module converts energy in the NFC signal into electric power and transmits the electric power to a power detection module, the power detection module feeds detection data at different positions of the mobile terminal back to an NFC module board, the NFC module feeds the detection data back to APP software of the mobile terminal through the antenna, and the APP software records a maximum output power value M in the detection data and identity information of the mobile terminal;
the purpose of the power supply power measuring method is to record the maximum output power value M and the identity information of the mobile terminal to prepare for the power supply position identification method.
According to the power supply position identification method, the APP software of the mobile terminal verifies the identity information of the mobile terminal in the power supply efficiency detection method, the identity information of the mobile terminal can be manually input or automatically acquired, the automatically acquired mobile terminal is required to open the data extraction function, the safety of user information is ensured, after the identity information is verified, the mobile terminal establishes NFC signal communication with target equipment, the target equipment feeds the output power value N of real-time detection data back to the APP software of the mobile terminal, whether the APP software is in a reasonable range through the output power value N of the real-time detection data and the maximum output power M recorded in the power supply efficiency detection method or not is confirmed, the output power value N is in the reasonable range, the terminal APP prompts that the current position is suitable, and the current position is kept and power supply operation is carried out.
The purpose of the power supply location identification method is that the user provides the correct power supply location.
The power supply position identification method comprises the following verification failure conditions and processing methods:
the method comprises the following steps that in the first failure condition, identity information verification of the mobile terminal fails, APP software of the mobile terminal returns to the operation of the power supply efficiency detection method, and the maximum output power value M is recorded again;
and under the second failure condition, the real-time output power value N is not in the reasonable range of the maximum output power M, the APP software of the mobile terminal prompts a user to readjust the position of the mobile terminal until the real-time output power value N is in the reasonable range of the maximum output power M, and then power supply operation is carried out.
The detection data comprises charging period, time, voltage and power of power output, and the calculation method of the maximum output power value M comprises an output voltage calculation method;
the power detection module comprises an ADC;
the antenna comprises a coil coupling;
the identity information of the mobile terminal comprises a hardware serial number and a hardware model;
the method for setting the reasonable range comprises the following steps: according to the actual power setting required by the target equipment to work.
The output voltage calculation method is that the higher the output voltage of the constant load measured by the ADC after charging is, namely the higher the output power is, the more suitable the position of the mobile terminal and the position of the target device is represented under the circuit condition that the electric energy converted by NFC field intensities at different positions of the mobile terminal is in the same time.
The power supply efficiency detection method comprises the following operation steps:
the measuring step is that the mobile terminal is close to the target equipment,
a measuring step of converting the NFC signal into electric energy by the target equipment,
measuring step c, calculating output power by the target equipment,
a measuring step (iv) of slowly moving the mobile terminal, measuring the output power of different positions by the target device,
and the APP software records the maximum output power M and the identity information of the mobile terminal.
The power supply position identification method comprises the following operation steps:
the power supply step is that APP software detects the identity information of the mobile terminal,
a power supply step, the mobile terminal is close to the target equipment, and the target equipment measures the real-time output power value N
The power supply step (c) APP software analyzes whether the output power value N is within a reasonable range of the maximum output power M,
the power supply step (IV) APP software prompts the current position to be proper and the poetry position to be ensured,
a power supply step (fifthly) of performing power supply control operation;
detecting that the identity information of the mobile terminal does not conform to the power supply step, and returning to output power measurement;
and in the power supply step (III), if the output power value N is not within the reasonable range of the maximum output power M, prompting the user to readjust the position of the mobile terminal until the real-time power value N is within the reasonable range of the maximum output power M, and then performing power supply operation.
Implementation 2: as shown in fig. 1-2, fig. 5-8, showing:
a power supply efficiency detection method applied to an NFC wireless power supply technology is disclosed, wherein the output efficiency detection method comprises a power supply power determination method and a power supply position identification method;
the power supply efficiency detection method and the power supply position identification method both need to comprise a mobile terminal and a target device for combined use, and the target device comprises: the antenna is connected with the NFC module, and the NFC module is connected with the function detection module.
The power supply efficiency detection method comprises the steps that the mobile terminal moves at different positions of a target device group and establishes NFC signal communication, an antenna transmits NFC signals from the mobile terminal to an NFC module, the NFC module converts energy in the NFC signals into electric power and transmits the electric power to a power detection module, the power detection module feeds detection data of different positions of the mobile terminal back to an NFC module board, the NFC module feeds the detection data back to APP software of the mobile terminal through the antenna, and the APP software records the maximum output power value M in the detection data and identity information of the mobile terminal.
The purpose of the power supply power measuring method is to record the maximum output power value M and the identity information of the mobile terminal to prepare for the power supply position identification method.
In the power supply position identification method, the APP software of the mobile terminal verifies the identity information of the mobile terminal in the power supply efficiency detection method, the identity information of the mobile terminal can be manually input or automatically acquired, the automatically acquired mobile terminal needs to open the data extraction function, the safety of user information is ensured, after verifying through the identity information, NFC signal communication is established with the target equipment to mobile terminal's APP software is fed back to the output power value N of real-time detection data to target equipment, whether the maximum output power M that the APP software recorded among the output power value N and the power supply efficiency detection method through real-time detection data is in reasonable scope, confirm output power value N in reasonable scope, terminal APP suggestion current position is fit for, keep the current position and supply power operation, target equipment's circuit and external device supply power promptly, external device includes: a motor, a solenoid valve;
the purpose of the power supply location identification method is that the user provides the correct power supply location.
The power supply position identification method comprises the following verification failure conditions and processing methods:
the method comprises the following steps that in the first failure condition, identity information verification of the mobile terminal fails, APP software of the mobile terminal returns to the operation of the power supply efficiency detection method, and the maximum output power value M is recorded again;
and under the second failure condition, the real-time output power value N is not in the reasonable range of the maximum output power M, the APP software of the mobile terminal prompts a user to readjust the position of the mobile terminal until the real-time output power value N is in the reasonable range of the maximum output power M, and then power supply operation is carried out.
The detection data comprises charging period, time, voltage and power of power output, and the calculation method of the maximum output power value M comprises a charging period calculation method;
the power detection module comprises a load element;
the antenna comprises a coil coupling;
the identity information of the mobile terminal comprises a hardware serial number, geographical position information, networking information hardware serial number and a hardware machine;
the setting method of the reasonable range comprises that (the maximum output power M-the output power value N)/the maximum output power M is more than or equal to 5 percent.
The charging period calculation method is that under the same time and voltage conditions, the faster the charging rise time of the load element is, the more charging periods are, namely, the output power is higher, and the position representing the position of the mobile terminal is more suitable for the position of the target device.
The power supply efficiency detection method comprises the following operation steps:
the measuring step is that the mobile terminal is close to the target equipment,
a measuring step of converting the NFC signal into electric energy by the target equipment,
measuring step c, calculating output power by the target equipment,
a measuring step (iv) of slowly moving the mobile terminal, measuring the output power of different positions by the target device,
and the APP software records the maximum output power M and the identity information of the mobile terminal.
The power supply position identification method comprises the following operation steps:
the power supply step is that APP software detects the identity information of the mobile terminal,
a power supply step, namely, the mobile terminal is close to the target equipment,
the power supply step (c) is that the target device measures the real-time output power value N,
the power supply step (iv) the APP software analyzes whether the output power value N is within the reasonable range of the maximum output power M,
the APP software prompts the current position to be proper and the poetry position to be ensured,
a power supply step sixth, power supply control operation is carried out;
detecting that the identity information of the mobile terminal does not conform to the power supply step, and returning to output power measurement;
and in the power supply step (iv), if the output power value N is not within the reasonable range of the maximum output power M, prompting the user to readjust the position of the mobile terminal until the real-time power value N is within the reasonable range of the maximum output power M, and then performing power supply operation.
The target device includes: NFC intelligence lock, imitative pseudo-equipment of NFC, NFC mailbox.
The invention realizes the measurement and prompt adjustment of the NFC output power of the mobile terminal to the power supply position, achieves the optimal power supply position and improves the use embodiment sense of a user on the target equipment.
The present invention is described in the above examples in the best possible detail, but the present invention includes but is not limited to the above examples and should not be construed as limiting the present invention in any way. Any modification or variation of the present invention should fall within the protection scope of the claims of the present invention.
Claims (8)
1. A power supply efficiency detection method applied to an NFC wireless power supply technology is characterized in that: the output efficiency detection method comprises a power supply power measurement method and a power supply position identification method;
the power supply efficiency detection method and the power supply position identification method both need to comprise a mobile terminal and a target device for combined use, and the target device comprises: the NFC antenna comprises an antenna, an NFC module and a power detection module, wherein the antenna is connected with the NFC module, and the NFC module is connected with the function detection module;
according to the power supply efficiency detection method, the mobile terminal moves at different positions of a target equipment group and establishes NFC signal communication, an antenna transmits an NFC signal from the mobile terminal to an NFC module, the NFC module converts energy in the NFC signal into electric power and transmits the electric power to a power detection module, the power detection module feeds detection data at different positions of the mobile terminal back to an NFC module board, the NFC module feeds the detection data back to APP software of the mobile terminal through the antenna, and the APP software records a maximum output power value M in the detection data and identity information of the mobile terminal;
according to the power supply position identification method, the APP software of the mobile terminal verifies the identity information of the mobile terminal in the power supply efficiency detection method, after the identity information is verified, NFC signal communication is established between the mobile terminal and target equipment, the target equipment feeds the output power value N of real-time detection data back to the APP software of the mobile terminal, whether the output power value N of the APP software through the real-time detection data and the maximum output power M recorded in the power supply efficiency detection method is in a reasonable range or not is determined, the output power value N is in the reasonable range, the APP of the terminal prompts that the current position is suitable, and the current position is kept and power supply operation is carried out.
2. The method of claim 1, wherein the method for detecting the power supply performance applied to the NFC wireless power supply technology comprises: the power supply position identification method comprises the following verification failure conditions and processing methods:
the method comprises the following steps that in the first failure condition, identity information verification of the mobile terminal fails, APP software of the mobile terminal returns to the operation of the power supply efficiency detection method, and the maximum output power value M is recorded again;
and under the second failure condition, the real-time output power value N is not in the reasonable range of the maximum output power M, the APP software of the mobile terminal prompts a user to readjust the position of the mobile terminal until the real-time output power value N is in the reasonable range of the maximum output power M, and then power supply operation is carried out.
3. The method of claim 1, wherein the method for detecting the power supply performance applied to the NFC wireless power supply technology comprises: the detection data comprises charging period, time, voltage and power of power output, and the calculation method of the maximum output power value M comprises one of an output voltage calculation method and a charging period calculation method;
the power detection module comprises one of an ADC and a load element;
the antenna comprises a coil coupling;
the identity information of the mobile terminal comprises one or more of a hardware serial number, geographical position information, networking information hardware serial number and a hardware model;
the method for setting the reasonable range comprises the following steps: according to the actual power setting (the maximum output power M-the output power value N)/the maximum output power M which is needed by the work of the target equipment, the method is one of the two setting methods that the maximum output power M is more than or equal to 5 percent.
4. The method as claimed in claim 3, wherein the method comprises: the output voltage calculation method is that the higher the output voltage of the constant load measured by the ADC after charging is, namely the higher the output power is, the more suitable the position of the mobile terminal and the position of the target device is represented under the circuit condition that the electric energy converted by NFC field intensities at different positions of the mobile terminal is in the same time.
5. The method as claimed in claim 3, wherein the method comprises: the charging period calculation method is that under the same time and voltage conditions, the faster the charging rise time of the load element is, the more charging periods are, namely, the output power is higher, and the position representing the position of the mobile terminal is more suitable for the position of the target device.
6. The method as claimed in claim 1, wherein the method for detecting the power efficiency of the NFC wireless power supply technology comprises the following steps:
the measuring step is that the mobile terminal is close to the target equipment,
a measuring step of converting the NFC signal into electric energy by the target equipment,
measuring step c, calculating output power by the target equipment,
a measuring step (iv) of slowly moving the mobile terminal, measuring the output power of different positions by the target device,
and the APP software records the maximum output power M and the identity information of the mobile terminal.
7. The method as claimed in claim 1, wherein the method for identifying the power supply location comprises the following steps:
the power supply step is that APP software detects the identity information of the mobile terminal,
a power supply step, namely, the mobile terminal is close to the target equipment,
the power supply step (c) is that the target device measures the real-time output power value N,
the power supply step (iv) the APP software analyzes whether the output power value N is within the reasonable range of the maximum output power M,
the APP software prompts the current position to be proper and the poetry position to be ensured,
a power supply step sixth, power supply control operation is carried out;
detecting that the identity information of the mobile terminal does not conform to the power supply step, and returning to output power measurement;
and in the power supply step (iv), if the output power value N is not within the reasonable range of the maximum output power M, prompting the user to readjust the position of the mobile terminal until the real-time power value N is within the reasonable range of the maximum output power M, and then performing power supply operation.
8. The method for detecting power supply performance applied to the NFC wireless power supply technology according to claim 1, wherein the target device includes: NFC intelligence lock, imitative pseudo-equipment of NFC, NFC mailbox.
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