CN111211815B - Antenna position detection device and detection method - Google Patents
Antenna position detection device and detection method Download PDFInfo
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- CN111211815B CN111211815B CN202010076251.3A CN202010076251A CN111211815B CN 111211815 B CN111211815 B CN 111211815B CN 202010076251 A CN202010076251 A CN 202010076251A CN 111211815 B CN111211815 B CN 111211815B
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- H04B5/73—
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- G—PHYSICS
- G08—SIGNALLING
- G08B—SIGNALLING OR CALLING SYSTEMS; ORDER TELEGRAPHS; ALARM SYSTEMS
- G08B21/00—Alarms responsive to a single specified undesired or abnormal condition and not otherwise provided for
- G08B21/18—Status alarms
- G08B21/24—Reminder alarms, e.g. anti-loss alarms
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- G—PHYSICS
- G08—SIGNALLING
- G08B—SIGNALLING OR CALLING SYSTEMS; ORDER TELEGRAPHS; ALARM SYSTEMS
- G08B5/00—Visible signalling systems, e.g. personal calling systems, remote indication of seats occupied
- G08B5/22—Visible signalling systems, e.g. personal calling systems, remote indication of seats occupied using electric transmission; using electromagnetic transmission
- G08B5/36—Visible signalling systems, e.g. personal calling systems, remote indication of seats occupied using electric transmission; using electromagnetic transmission using visible light sources
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- H04B5/26—
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04M—TELEPHONIC COMMUNICATION
- H04M1/00—Substation equipment, e.g. for use by subscribers
- H04M1/24—Arrangements for testing
Abstract
The invention provides an antenna position detection device and a detection method, wherein the device comprises: the induction coil is coupled with an antenna to be tested of the electronic equipment and receives an electromagnetic signal sent by the antenna to be tested through electromagnetic induction; the detection circuit is connected with the induction coil and is used for detecting the intensity of an electromagnetic signal coupled to the induction coil to generate a detection signal; and the reminding circuit is connected with the detection circuit and comprises a light-emitting unit, the reminding circuit is used for reminding through the light-emitting unit according to the detection signal, and the brightness of the light-emitting unit changes along with the relative position of the induction coil and the antenna to be detected. Therefore, the detection and the prompt of the antenna position can be conveniently and rapidly realized, and the antenna position detection device also has the advantages of simple structure, low cost, safety and reliability.
Description
Technical Field
The present invention relates to the field of communications technologies, and in particular, to an antenna position detection apparatus and an antenna position detection method.
Background
In the related art, a control terminal, such as a mobile phone, is integrated with an NFC (Near Field Communication) function. However, the related art has a problem that the NFC antenna in the mobile phone generally has a small area, so that the sensing area is small, which may cause a user to attach the mobile phone to the card reader when using the NFC function of the mobile phone, and to perform NFC communication by performing multiple attempts; in addition, the positions of the NFC antennas of different mobile phones are different, and once a user replaces a mobile phone, the user needs to search for the NFC communication position again; furthermore, it may be difficult for some NFC device manufacturers to align the two NFC antenna locations when the NFC antenna area is small when testing their NFC device compatibility and reliability.
Disclosure of Invention
The present invention is directed to solving, at least to some extent, one of the technical problems in the related art.
Therefore, a first objective of the present invention is to provide an antenna position detecting device to detect and indicate the position of an antenna.
A second object of the present invention is to provide an antenna position detecting method.
In order to achieve the above object, an embodiment of a first aspect of the present invention provides an antenna position detecting device, including: the induction coil is coupled with an antenna to be tested of the electronic equipment, and receives an electromagnetic signal sent by the antenna to be tested through electromagnetic induction; a detection circuit connected to the induction coil, the detection circuit configured to detect an intensity of an electromagnetic signal coupled to the induction coil to generate a detection signal; and the reminding circuit is connected with the detection circuit and is used for reminding through the light-emitting unit according to the detection signal, wherein the brightness of the light-emitting unit changes along with the relative position of the induction coil and the antenna to be detected.
According to the antenna position detection device provided by the embodiment of the invention, the induction coil is coupled with the antenna to be detected of the electronic equipment, the induction coil receives an electromagnetic signal sent by the antenna to be detected through electromagnetic induction, the detection circuit is connected with the induction coil, the detection circuit detects the intensity of the electromagnetic signal coupled to the induction coil to generate a detection signal, the reminding circuit is connected with the detection circuit, the reminding circuit carries out reminding through the light-emitting unit according to the detection signal, and the brightness of the light-emitting unit changes along with the relative position of the induction coil and the antenna to be detected. Therefore, the antenna position detection device provided by the embodiment of the invention can conveniently and quickly realize the detection and prompt of the antenna position, and has the advantages of simple structure, low cost, safety and reliability.
According to an embodiment of the present invention, the induction coil is configured to generate a first electrical signal according to the received electromagnetic signal; the detection circuit is used for generating a corresponding detection signal according to the change of the first electric signal.
According to an embodiment of the invention, the detection circuit includes a first diode, a second diode, a third diode and a fourth diode, wherein an anode of the first diode and an anode of the fourth diode are both grounded, a cathode of the first diode is connected with an anode of the second diode and with one end of the induction coil, a cathode of the second diode and a cathode of the third diode are both connected with the reminding circuit, and an anode of the third diode is connected with a cathode of the fourth diode and with the other end of the induction coil.
According to an embodiment of the present invention, the detection circuit further includes a first capacitor, one end of the first capacitor is connected to the cathode of the second diode and the cathode of the third diode, and the other end of the first capacitor is grounded.
According to one embodiment of the invention, the light emitting unit comprises a light emitting diode, and the reminding circuit further comprises a first resistor, wherein the first resistor is connected with the light emitting diode in series.
According to an embodiment of the present invention, the intensity of the detection signal increases as the relative position of the induction coil and the antenna under test approaches, so that the brightness of the light emitting unit increases as the intensity of the detection signal increases.
According to an embodiment of the present invention, the antenna to be tested is an NFC antenna.
In order to achieve the above object, a second embodiment of the present invention provides an antenna position detecting method, including: the method comprises the steps that an induction coil is coupled with an antenna to be tested of the electronic equipment, so that the induction coil receives an electromagnetic signal sent by the antenna to be tested through electromagnetic induction; detecting a strength of an electromagnetic signal to which the induction coil is coupled to generate a detection signal; and reminding through a light-emitting unit according to the detection signal, wherein the brightness of the light-emitting unit changes along with the relative position of the induction coil and the antenna to be detected.
According to the antenna position detection method provided by the embodiment of the invention, the induction coil is coupled with the antenna to be detected of the electronic equipment, so that the induction coil receives an electromagnetic signal sent by the antenna to be detected through electromagnetic induction, then the intensity of the electromagnetic signal coupled to the induction coil is detected to generate a detection signal, and reminding is performed through the light-emitting unit according to the detection signal, wherein the brightness of the light-emitting unit changes along with the relative position of the induction coil and the antenna to be detected. Therefore, the antenna position detection method provided by the embodiment of the invention can conveniently and quickly realize the detection and prompt of the antenna position, and has the advantages of simple control, low cost, safety and reliability.
According to an embodiment of the present invention, the induction coil generating a first electrical signal according to the received electromagnetic signal, and the detecting the strength of the electromagnetic signal coupled to the induction coil to generate a detection signal, includes: and generating a corresponding detection signal according to the change of the first electric signal.
According to an embodiment of the present invention, the intensity of the detection signal increases as the relative position of the induction coil and the antenna under test approaches, so that the brightness of the light emitting unit increases as the intensity of the detection signal increases.
Additional aspects and advantages of the invention will be set forth in part in the description which follows and, in part, will be obvious from the description, or may be learned by practice of the invention.
Drawings
The foregoing and/or additional aspects and advantages of the present invention will become apparent and readily appreciated from the following description of the embodiments, taken in conjunction with the accompanying drawings of which:
FIG. 1 is a block diagram of an antenna position detection apparatus according to an embodiment of the present invention;
FIG. 2 is a schematic circuit diagram of an antenna position detection apparatus according to an embodiment of the present invention;
FIG. 3 is a schematic diagram illustrating the parameter setting of the induction coil of the antenna position detecting device according to an embodiment of the present invention;
FIG. 4a is a top view of the profile of an antenna position detecting device according to an embodiment of the present invention;
FIG. 4b is a side view of the antenna position detecting device according to one embodiment of the present invention;
FIG. 5a is a diagram illustrating transient simulation results of an antenna position detecting device according to an embodiment of the present invention;
FIG. 5b is a diagram illustrating transient simulation results of an antenna position detecting device according to another embodiment of the present invention;
FIG. 6 is a schematic diagram illustrating the AC analysis result of the antenna position detecting device according to one embodiment of the present invention;
fig. 7 is a flowchart illustrating an antenna position detecting method according to an embodiment of the present invention.
Detailed Description
Reference will now be made in detail to embodiments of the present invention, examples of which are illustrated in the accompanying drawings, wherein like or similar reference numerals refer to the same or similar elements or elements having the same or similar function throughout. The embodiments described below with reference to the drawings are illustrative and intended to be illustrative of the invention and are not to be construed as limiting the invention.
An antenna position detection apparatus and a detection method of an embodiment of the present invention are described below with reference to the drawings.
Fig. 1 is a block diagram of an antenna position detecting apparatus according to an embodiment of the present invention.
As shown in fig. 1, an antenna position detection apparatus according to an embodiment of the present invention includes: induction coil 10, detection circuitry 20 and reminder circuitry 30.
The induction coil 10 is coupled with an antenna 40 to be tested of the electronic device, and the induction coil 10 receives an electromagnetic signal sent by the antenna 40 to be tested through electromagnetic induction; the detection circuit 20 is connected to the induction coil 10, and the detection circuit 20 is configured to detect the intensity of the electromagnetic signal coupled to the induction coil 10 to generate a detection signal; and the reminding circuit 30 is connected with the detection circuit 20, the reminding circuit 30 comprises a light emitting unit 301, the reminding circuit 30 is used for reminding through the light emitting unit 301 according to the detection signal, wherein the brightness of the light emitting unit 301 changes along with the relative position of the induction coil 10 and the antenna 40 to be detected.
It should be noted that the relative position between the induction coil 10 and the antenna to be tested 40 refers to a distance between the position of the induction coil 10 and the position of the antenna to be tested 40, i.e., the NFC antenna, when the antenna position detection device is attached and translated on the back surface of an electronic device, such as a mobile phone. In addition, it should be noted that the antenna position detecting device according to the embodiment of the present invention may be powered by coupling with the antenna 40 to be tested of the electronic device, so that any active power supply is not required.
According to one embodiment of the invention, the antenna under test 40 is an NFC antenna. The electronic device may be a card reader or a mobile phone, and the induction coil 10 may also be an NFC antenna.
It can be understood that the induction coil 10 of the antenna position detecting device according to the embodiment of the present invention is coupled to the antenna 40 to be tested, i.e. the NFC antenna, of the electronic device, e.g. the card reader, i.e. the induction coil 10 and the NFC antenna may form a transformer, wherein the NFC antenna may be equivalent to a primary coil of the transformer, and the induction coil 10 is equivalent to a secondary coil of the transformer. When a high-frequency alternating current with a frequency of 13.56MHz is introduced into a primary coil of the transformer, that is, the NFC antenna, a high-frequency magnetic field is generated by coupling around the NFC antenna, so that the induction coil 10 can receive an electromagnetic signal sent by the NFC antenna through electromagnetic induction, that is, an alternating magnetic line passes through the induction coil 10, the detection circuit 20 detects the intensity of the electromagnetic signal coupled to the induction coil 10 to generate a detection signal, the reminding circuit 30 reminds through the light emitting unit 301 according to the detection signal, and the brightness of the light emitting unit 301 changes along with the relative position between the induction coil 10 and the antenna to be detected 40.
Further, according to an embodiment of the present invention, the induction coil 10 is configured to generate a first electrical signal according to the received electromagnetic signal; the detection circuit 20 is configured to generate a corresponding detection signal according to the change of the first electrical signal.
It can be understood that when the NFC antenna is supplied with high-frequency alternating current, a high-frequency magnetic field may be generated by coupling around the NFC antenna, and when the induction coil 10 is close to this magnetic field, the induction coil 10 may receive an electromagnetic signal sent by the NFC antenna through electromagnetic induction, that is, alternating magnetic lines of force pass through the induction coil 10, and the induction coil 10 generates a first electrical signal, that is, an induced electromotive force, according to the received alternating magnetic lines of force, where, as can be known from the faraday's electromagnetic induction law, the magnitude of the induced electromotive force is proportional to the rate of change of magnetic flux passing through the coil, therefore, the better the position of the induction coil 10 and the NFC antenna is fitted, the more ideal the coupled magnetic flux change is, the larger the induced electromotive force generated in the induction coil 10 is, and the detection circuit 20 may generate a corresponding detection signal according to the change of the induced electromotive force generated in the induction coil 10.
It should be noted that, since the NFC antenna coil has a small area, the coil of the induction coil 10 cannot be too large to accurately detect its position, and the square coil of 2cmX2cm may be used in the present invention. In addition, since the hardware circuit composed of the detection circuit 20 and the reminder circuit 30 can attenuate the induced electromotive force generated by the induction coil 10 to a certain extent, the number of turns of the induction coil 10 can be set to 9 turns, for example, in a large number, and the value of the induced electromotive force generated can be increased. Further, by setting parameters of the length L11, the width W1, the number of turns N21, the line width W2, the line spacing S1, the copper thickness T1, the substrate thickness T2, and the like of the induction coil 10, the inductance of the induction coil 10 can be accurately calculated, wherein each parameter of the induction coil 10 can be further set by means of an EDA simulation tool, and specific parameter setting is as shown in fig. 3.
Specifically, according to an embodiment of the present invention, as shown in fig. 2, the detection circuit 20 includes a first diode D1, a second diode D2, a third diode D3 and a fourth diode D4, wherein an anode of the first diode D1 and an anode of the fourth diode D4 are all grounded, a cathode of the first diode D1 is connected to an anode of the second diode D2 and connected to one end of the induction coil 10, a cathode of the second diode D2 and a cathode of the third diode D3 are both connected to the reminder circuit 30, and an anode of the third diode D3 is connected to a cathode of the fourth diode D4 and connected to the other end of the induction coil 10.
Further, according to an embodiment of the present invention, as shown in fig. 2, the detection circuit 20 further includes a first capacitor C1, one end of the first capacitor C1 is connected to the cathode of the second diode D2 and the cathode of the third diode D3, and the other end of the first capacitor C1 is grounded.
According to an embodiment of the present invention, as shown in fig. 2, the light emitting unit 301 includes a light emitting diode D5, and the reminder circuit 30 further includes a first resistor R1, wherein the first resistor R1 is connected in series with the light emitting diode D5.
Further, according to an embodiment of the present invention, the intensity of the detection signal increases as the relative position of the induction coil 10 and the antenna 40 to be measured approaches, and thus, the brightness of the light emitting unit 301 increases as the intensity of the detection signal.
Specifically, the anode of the light emitting diode D5 is connected to the cathode of the second diode D2, the cathode of the light emitting diode D5 is connected to one end of the first resistor R1, and the other end of the first resistor R1 is connected to the other end of the first capacitor C1. It can be understood that when the NFC antenna, i.e., the primary coil N1 of the transformer in fig. 2 (the number of turns may be 3 to 4 turns), is fed with a high-frequency alternating current, i.e., VF1 in fig. 2, a high-frequency magnetic field is generated by coupling around the primary coil N1 of the transformer in fig. 2, the induction coil 10 may receive an electromagnetic signal sent by the NFC antenna, i.e., the primary coil N1 of the transformer in fig. 2, through electromagnetic induction, that is, alternating magnetic lines pass through the induction coil 10, and the induction coil 10 generates a first electrical signal, i.e., an induced electromotive force, i.e., VF2 in fig. 2, according to the received alternating magnetic lines, wherein the induction coil 10 includes the secondary coil N2 of the transformer in fig. 2 (the number of turns may be 9 turns), a second resistor R2, and a first inductor L1, thereby enabling a simulation result to be closer to reality. In addition, the second resistor R2 and the first inductor L1 can tune the operating frequency of the antenna position detection device, so that the operating frequency of the antenna position detection device is the same as the operating frequency of the NFC antenna.
In the positive half cycle of the alternating current VF1, current is guided by the second diode D2 and the fourth diode D4 to flow through the light emitting diode D5 and the first resistor R1, and in the negative half cycle of the alternating current VF1, current is guided by the first diode D1 and the third diode D3 to flow through the light emitting diode D5 and the first resistor R1, so that full-wave rectification of the induced electromotive force VF2 can be realized by the rectification unit 201 shown in fig. 2, and the rectified induced electromotive force, i.e., VF3 in fig. 2, can be filtered by the first capacitor C1 to convert the high-frequency rectified signal into an approximate direct current signal, and further, the light emitting diode D5 is driven to emit light by the direct current signal. Furthermore, the induced electromotive force generated by the induction coil 10 is processed by a pure hardware method, that is, the rectifying unit 201 and the filtering unit 202 in fig. 2, so that the safety and reliability of the device operation can be improved.
The magnitude of the first capacitor C1 determines the speed of the antenna position detection device for detecting the stable detection speed, and the larger the value of the first capacitor C1, the slower the detection stable speed, i.e., the longer the time required for the detection to be stable, the brightness of the light emitting diode D5 changes with the magnitude of the induced electromotive force VF2, i.e., the larger the induced electromotive force VF2, the brighter the brightness of the light emitting diode D5, and the smaller the induced electromotive force VF2, the weaker the brightness of the light emitting diode D5.
For example, assuming that the relative positions of the induction coil 10 and the antenna 40 to be tested, i.e., the NFC antenna, are completely overlapped, as shown in fig. 2, the magnetic flux change of the NFC antenna, i.e., the primary coil N1, completely passes through the induction coil 10, i.e., the secondary coil N2, and the electromotive force induced by the induction coil 10 is equal to N21/N11 × e1, where e1 is the voltage value of the high-frequency alternating current VF1, N11 is the number of turns of the primary coil, i.e., the NFC antenna, and N21 is the number of turns of the secondary coil, i.e., the induction coil 10. In addition, each component in the circuit of fig. 2 uses an actual PSPICE model, the transient simulation results of the key nodes of the circuit of fig. 2 are shown in fig. 5a and 5b, and the alternating current analysis results are shown in fig. 6. As can be seen from fig. 5a and 5b, when the high-frequency alternating current VF1 is an ASK or OOK NFC modulated signal and the induction coil 10 is placed in a position completely coinciding with the NFC antenna, the circuit of fig. 2 can quickly stabilize the rectified induced electromotive force VF3 at 5V within 200us, and the light emitting diode D5 is at the brightest state.
It can be understood that, in practical use of the antenna position detecting device, when the device is attached to and translated on the back of an electronic device such as a mobile phone, the farther away from the antenna 40 to be detected, i.e. the NFC antenna position, the less the magnetic flux coupled to the induction coil 10, the smaller the induced electromotive force generated by the induction coil 10, and the weaker the strength of the detection signal generated by the detection circuit 20, and the weaker the brightness of the light emitting diode D5, and the closer to the antenna 40 to be detected, i.e. the NFC antenna position, the more the magnetic flux coupled to the induction coil 10, and the larger the induced electromotive force generated by the induction coil 10, and the stronger the strength of the detection signal generated by the detection circuit 20, and the brighter the brightness of the light emitting diode D5, so that a user can use the antenna screen printing 1 on the housing 100 of the antenna position detecting device, as shown in fig. 4a and 4b, (the size of the antenna screen printing 1 is large, The position is completely consistent with the size and the position of the induction coil 10 on the PCB 2), and the brightness of the light emitting diode D5, the position of the antenna 40 to be tested can be quickly located.
In addition, it should be noted that, when the mobile phone is used, 2G, 3G and 4G signals may exist, the frequencies of which are basically above 900MHz, and as can be seen from the ac simulation result in fig. 6, the gains of which are attenuated by at least 30dB with respect to the NFC signal, so that the measurement result is not affected.
In summary, according to the antenna position detecting device of the embodiment of the present invention, the induction coil is coupled to an antenna to be detected of the electronic device, the induction coil receives an electromagnetic signal transmitted by the antenna to be detected through electromagnetic induction, the detection circuit is connected to the induction coil, the detection circuit detects the intensity of the electromagnetic signal coupled to the induction coil to generate a detection signal, the reminding circuit is connected to the detection circuit, the reminding circuit includes a light emitting unit, the reminding circuit reminds through the light emitting unit according to the detection signal, wherein the brightness of the light emitting unit changes along with the relative position between the induction coil and the antenna to be detected. Therefore, the antenna position detection device provided by the embodiment of the invention can conveniently and quickly realize the detection and prompt of the antenna position, and has the advantages of simple structure, low cost, safety and reliability.
Corresponding to the antenna position detection device of the above embodiment, the present invention also provides an antenna position detection method.
Fig. 7 is a flowchart illustrating an antenna position detecting method according to an embodiment of the present invention. As shown in fig. 7, the antenna position detecting method according to the embodiment of the present invention includes the following steps:
and S1, coupling the antenna to be tested of the electronic device through the induction coil, so that the induction coil receives the electromagnetic signal sent by the antenna to be tested through electromagnetic induction.
S2, detecting the intensity of the electromagnetic signal to which the induction coil is coupled to generate a detection signal.
And S3, reminding through the light-emitting unit according to the detection signal, wherein the brightness of the light-emitting unit changes along with the relative position of the induction coil and the antenna to be detected.
According to an embodiment of the present invention, an induction coil generates a first electrical signal according to a received electromagnetic signal, and detects the intensity of the electromagnetic signal coupled to the induction coil to generate a detection signal, including: and generating a corresponding detection signal according to the change of the first electric signal.
Further, according to an embodiment of the present invention, the intensity of the detection signal increases as the relative position of the induction coil and the antenna to be measured approaches, and thus, the luminance of the light emitting unit increases as the intensity of the detection signal.
It should be noted that the foregoing explanation of the embodiment of the antenna position detecting device is also applicable to the method for detecting the antenna position of the embodiment, and is not repeated herein.
In summary, according to the antenna position detecting method of the embodiment of the present invention, the induction coil is coupled with the antenna to be detected of the electronic device, so that the induction coil receives the electromagnetic signal sent by the antenna to be detected through electromagnetic induction, then the intensity of the electromagnetic signal coupled to the induction coil is detected to generate the detection signal, and the detection signal is used to prompt the user through the light emitting unit, wherein the brightness of the light emitting unit changes along with the relative position between the induction coil and the antenna to be detected. Therefore, the antenna position detection method provided by the embodiment of the invention can conveniently and quickly realize the detection and prompt of the antenna position, and has the advantages of simple control, low cost, safety and reliability.
In the description herein, references to the description of the term "one embodiment," "some embodiments," "an example," "a specific example," or "some examples," etc., mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the invention. In this specification, the schematic representations of the terms used above are not necessarily intended to refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples. Furthermore, various embodiments or examples and features of different embodiments or examples described in this specification can be combined and combined by one skilled in the art without contradiction.
Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one such feature. In the description of the present invention, "a plurality" means at least two, e.g., two, three, etc., unless specifically limited otherwise.
Any process or method descriptions in flow charts or otherwise described herein may be understood as representing circuits, segments, or portions of code which include one or more executable instructions for implementing steps of a custom logic function or process, and alternate implementations are included within the scope of the preferred embodiment of the present invention in which functions may be executed out of order from that shown or discussed, including substantially concurrently or in reverse order, depending on the functionality involved, as would be understood by those reasonably skilled in the art of the present invention.
The logic and/or steps represented in the flowcharts or otherwise described herein, e.g., an ordered listing of executable instructions that can be considered to implement logical functions, can be embodied in any computer-readable medium for use by or in connection with an instruction execution system, apparatus, or device, such as a computer-based system, processor-containing system, or other system that can fetch the instructions from the instruction execution system, apparatus, or device and execute the instructions. For the purposes of this description, a "computer-readable medium" can be any means that can contain, store, communicate, propagate, or transport the program for use by or in connection with the instruction execution system, apparatus, or device. More specific examples (a non-exhaustive list) of the computer-readable medium would include the following: an electrical connection (electronic device) having one or more wires, a portable computer diskette (magnetic device), a Random Access Memory (RAM), a read-only memory (ROM), an erasable programmable read-only memory (EPROM or flash memory), an optical fiber device, and a portable compact disc read-only memory (CDROM). Additionally, the computer-readable medium could even be paper or another suitable medium upon which the program is printed, as the program can be electronically captured, via for instance optical scanning of the paper or other medium, then compiled, interpreted or otherwise processed in a suitable manner if necessary, and then stored in a computer memory.
It should be understood that portions of the present invention may be implemented in hardware, software, firmware, or a combination thereof. In the above embodiments, the various steps or methods may be implemented in software or firmware stored in memory and executed by a suitable instruction execution system. If implemented in hardware, as in another embodiment, any one or combination of the following techniques, which are known in the art, may be used: a discrete logic circuit having a logic gate circuit for implementing a logic function on a data signal, an application specific integrated circuit having an appropriate combinational logic gate circuit, a Programmable Gate Array (PGA), a Field Programmable Gate Array (FPGA), or the like.
It will be understood by those skilled in the art that all or part of the steps carried by the method for implementing the above embodiments may be implemented by hardware related to instructions of a program, which may be stored in a computer readable storage medium, and when the program is executed, the program includes one or a combination of the steps of the method embodiments.
In addition, functional units in the embodiments of the present invention may be integrated into one processing circuit, or each unit may exist alone physically, or two or more units are integrated into one circuit. The integrated circuit can be realized in a hardware form, and can also be realized in a software functional circuit form. The integrated circuit, if implemented in the form of a software-enabled circuit and sold or used as a stand-alone product, may also be stored in a computer-readable storage medium.
The storage medium mentioned above may be a read-only memory, a magnetic or optical disk, etc. Although embodiments of the present invention have been shown and described above, it is understood that the above embodiments are exemplary and should not be construed as limiting the present invention, and that variations, modifications, substitutions and alterations can be made to the above embodiments by those of ordinary skill in the art within the scope of the present invention.
Claims (9)
1. An antenna position detecting device, comprising:
the induction coil is coupled with an antenna to be tested of the electronic equipment and receives an electromagnetic signal sent by the antenna to be tested through electromagnetic induction, wherein the antenna to be tested is an NFC antenna;
a detection circuit connected to the induction coil, the detection circuit configured to detect an intensity of an electromagnetic signal coupled to the induction coil to generate a detection signal; and
the reminding circuit is connected with the detection circuit and comprises a light-emitting unit, the reminding circuit is used for reminding through the light-emitting unit according to the detection signal, and the brightness of the light-emitting unit changes along with the relative position of the induction coil and the antenna to be detected.
2. The antenna position detecting device according to claim 1,
the induction coil is used for generating a first electric signal according to the received electromagnetic signal;
the detection circuit is used for generating a corresponding detection signal according to the change of the first electric signal.
3. The antenna position detecting device according to claim 2, wherein the detecting circuit includes a first diode, a second diode, a third diode and a fourth diode, wherein an anode of the first diode and an anode of the fourth diode are both grounded, a cathode of the first diode is connected to an anode of the second diode and to one end of the induction coil, a cathode of the second diode and a cathode of the third diode are both connected to the reminding circuit, and an anode of the third diode is connected to a cathode of the fourth diode and to the other end of the induction coil.
4. The antenna position detecting device according to claim 3, wherein the detection circuit further includes a first capacitor, one end of the first capacitor is connected to the cathode of the second diode and the cathode of the third diode, and the other end of the first capacitor is grounded.
5. The antenna position detecting device according to claim 1, wherein the light emitting unit includes a light emitting diode, and the alert circuit further includes a first resistor connected in series with the light emitting diode.
6. The antenna position detecting device according to claim 1 or 5, wherein the intensity of the detection signal increases as the relative position of the induction coil and the antenna to be measured approaches, and thus the luminance of the light emitting unit increases as the intensity of the detection signal.
7. An antenna position detection method, characterized by comprising the steps of:
the method comprises the steps that an induction coil is coupled with an antenna to be tested of the electronic equipment, so that the induction coil receives an electromagnetic signal sent by the antenna to be tested through electromagnetic induction, wherein the antenna to be tested is an NFC antenna;
detecting a strength of an electromagnetic signal to which the induction coil is coupled to generate a detection signal; and
and reminding through a light-emitting unit according to the detection signal, wherein the brightness of the light-emitting unit changes along with the relative position of the induction coil and the antenna to be detected.
8. The antenna position detection method according to claim 7, wherein the induction coil generates a first electric signal based on the received electromagnetic signal,
the detecting a strength of an electromagnetic signal to which the induction coil is coupled to generate a detection signal, comprising:
and generating a corresponding detection signal according to the change of the first electric signal.
9. The antenna position detection method according to claim 7, wherein the intensity of the detection signal increases as the relative position of the induction coil and the antenna to be measured approaches, and thus the luminance of the light emitting unit increases as the intensity of the detection signal.
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| CN209765557U (en) * | 2019-06-17 | 2019-12-10 | 北京倍胜智能科技有限公司 | Intelligent flash device based on NFC technology |
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| CN103512061B (en) * | 2012-06-18 | 2016-01-20 | 珠海格力电器股份有限公司 | A kind of system and electromagnetic oven measuring pan placement location on electromagnetic oven |
| CN203535123U (en) * | 2013-10-08 | 2014-04-09 | 中国科学院城市环境研究所 | Simple electromagnetic environment warning indicator |
| CN203535203U (en) * | 2013-10-23 | 2014-04-09 | 国家电网公司 | A magnetic field intensity detection apparatus |
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| CN205696187U (en) * | 2016-02-14 | 2016-11-23 | 刘一成 | A kind of passive luminous wallet |
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