CN117471557A

CN117471557A - Detection method, detection equipment and processing chip

Info

Publication number: CN117471557A
Application number: CN202311108514.4A
Authority: CN
Inventors: 林郁喆
Original assignee: Lenovo Beijing Ltd
Current assignee: Lenovo Beijing Ltd
Priority date: 2023-08-30
Filing date: 2023-08-30
Publication date: 2024-01-30

Abstract

The application discloses a detection method, detection equipment and a processing chip, wherein the detection method comprises the following steps: transmitting a detection signal, wherein the detection signal is a detection current transmitted to a starting section of the target coil; obtaining a feedback signal for the detection signal, the feedback signal being a feedback current received from an ending segment of the target coil; based on the feedback signal, a property of the target object is determined.

Description

Detection method, detection equipment and processing chip

Technical Field

The embodiment of the application relates to the technical field of electronics, and relates to a detection method, detection equipment and a processing chip.

Background

The prior solution of the product for the FCC/CE SAR is to finish sensing by utilizing the cooperation of a capacitive Sensor (capacitive Sensor), a distance Sensor (p-Sensor) or a light Sensor (light-Sensor) and the like on a mobile phone, mainly capacitive Sensor. The capacitive change generated by the sensor probe (sensing pad) of the mobile phone when the human body approaches is used as the sensing of the approach of the human body, and the power is reduced when the human body approaches, so that the requirement of low SAR value is met.

Current capacitive sensor suffers from the following problems: when the user places the mobile phone on a metal material of the type such as a table or laptop, the capacitive sensor will also be caused to trigger and perform power down directly.

Disclosure of Invention

In view of this, embodiments of the present application provide a detection method, apparatus, device, chip, and storage medium.

The technical scheme of the embodiment of the application is realized as follows:

in a first aspect, embodiments of the present application provide a detection method, where the method includes:

transmitting a detection signal, wherein the detection signal is a detection current transmitted to a starting section of the target coil;

obtaining a feedback signal for the detection signal, the feedback signal being a feedback current received from an ending segment of the target coil;

based on the feedback signal, a property of the target object is determined.

In a second aspect, an embodiment of the present application provides an electronic device, including:

a coil comprising a start segment and an end segment;

the first processor is used for transmitting detection current through the transmitting port and receiving feedback current of the detection current through the receiving port, wherein the coil forms a magnetic field for induction through the detection current.

In a third aspect, embodiments of the present application provide a processing chip, the chip including:

a transmit port;

a receiving port;

a processing unit for transmitting a probe current to a target coil through the transmitting port and receiving a feedback current of the probe current from the target coil through a receiving port; based on the feedback signal, a property of the target object is determined.

In a fourth aspect, embodiments of the present application provide a detection apparatus, the apparatus including:

the transmitting module is used for transmitting a detection signal, wherein the detection signal is a detection current transmitted to the initial section of the target coil;

a first obtaining module for obtaining a feedback signal for the detection signal, the feedback signal being a feedback current received from an end segment of the target coil;

and the first determining module is used for determining the attribute of the target object based on the feedback signal.

In a fifth aspect, embodiments of the present application provide a storage medium storing executable instructions for implementing the above method when executed by a processor.

Drawings

Fig. 1A is a schematic implementation flow chart of a detection method according to an embodiment of the present application;

FIG. 1B is a schematic diagram of a chip and an antenna for generating a magnetic field according to an embodiment of the present application

Fig. 1C is a schematic diagram of magnetic field negative feedback of a chip and an antenna according to an embodiment of the present application;

fig. 2A is a schematic structural diagram of an electronic device according to an embodiment of the present application;

fig. 2B is a schematic structural diagram of an electronic device according to an embodiment of the present application

Fig. 3 is a schematic structural diagram of a processing chip according to an embodiment of the present application;

fig. 4 is a schematic implementation flow chart of a method for determining that a metal is close to an electronic device according to an embodiment of the present application;

fig. 5 is a schematic diagram of a composition structure of a detection device according to an embodiment of the present application;

fig. 6 is a schematic diagram of a hardware entity of an electronic device according to an embodiment of the present application.

Detailed Description

For the purposes, technical solutions and advantages of the embodiments of the present application to be more apparent, the specific technical solutions of the embodiments of the present application will be further described in detail below with reference to the accompanying drawings in the embodiments of the present application. The following examples are illustrative of the present application, but are not intended to limit the scope of the present application.

In the following description, reference is made to "some embodiments" which describe a subset of all possible embodiments, but it is to be understood that "some embodiments" can be the same subset or different subsets of all possible embodiments and can be combined with one another without conflict.

In the following description, the terms "first", "second", "third" and the like are merely used to distinguish similar objects and do not represent a specific ordering of the objects, it being understood that the "first", "second", "third" may be interchanged with a specific order or sequence, as permitted, to enable embodiments of the application described herein to be practiced otherwise than as illustrated or described herein.

Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this application belongs. The terminology used herein is for the purpose of describing embodiments of the present application only and is not intended to be limiting of the present application.

Before further describing embodiments of the present application in detail, the terms and expressions that are referred to in the embodiments of the present application are described, and are suitable for the following explanation.

CE: the SAR test of the mobile phone mainly refers to the standard EN 5066-2017; EN 50360-2017; EN 62209-1-2016; EN 62209-2-2010.

FCC: the SAR test of the mobile phone mainly refers to IEEE 1528-2013; KDB 941225; KDB 447498, and the like.

Specific absorption rate (Specific Absorption Rate, SAR), in W/Kg, refers to the amount of electromagnetic radiation energy absorbed or dissipated by a human body per unit mass per unit time. SAR testing is a measurement of the magnitude of the effect of radiation on the human body. In order to reduce the harm of electromagnetic radiation of the mobile phone to the health and safety of human bodies, most countries and regions have mandatory safety standards for SAR values of the mobile phone. And in different regions, different requirements are also imposed on the SAR value.

Near field communication (Near Field Communication, NFC) is a radio technology for short range high frequencies. Devices using NFC technology, such as mobile phones, can exchange data in close proximity to each other.

An embodiment of the present application provides a detection method, as shown in fig. 1A, including:

step S110, transmitting a detection signal, wherein the detection signal is a detection current transmitted to a starting section of a target coil;

here, the target coil may multiplex an antenna coil provided on the electronic device. Fig. 1B is a schematic diagram of a magnetic field generated by a chip and an antenna according to an embodiment of the present application, as shown in fig. 1B, where the schematic diagram includes: a chip 11, a matching unit 12, an antenna coil 13 and a magnetic field 14, wherein,

the chip 11 includes a transmit port TX1, a transmit port TX2, a receive port RXP, and a receive port RXN.

In some embodiments, the transmitting end TX1 of the chip 11 may be the beginning segment, while the transmitting end TX2 may be the ending segment. In operation, a first transmit period transmits a probe current at transmit terminal TX1 and receives the probe current at transmit terminal TX2 to form magnetic field 14. Here, in order to cause the detection current to form the magnetic field 14 at the antenna coil 13, the transmission period may set the receiving end RXP and the receiving port RXN to an off state.

In some embodiments, the transmitting end TX2 of the chip 11 may be the beginning segment, while the transmitting end TX1 may be the ending segment. In practice, the second transmit period transmits a probe current at the transmit terminal TX2 and receives the probe current at the transmit terminal TX1 to form the magnetic field 14.

Here, the magnetic field may be formed only with the first emission period, may be formed only with the second emission period, and may be alternately formed between the first emission period and the second emission period.

Step S120, obtaining a feedback signal for the detection signal, wherein the feedback signal is a feedback current received from the end section of the target coil;

here, the feedback current may be a current signal detected at the end section of the antenna coil in the reception period. The reception period is a different period from the transmission period.

Fig. 1C is a schematic diagram of magnetic field negative feedback of a chip and an antenna according to an embodiment of the present application, as shown in fig. 1C, where the schematic diagram of magnetic field negative feedback includes: the chip 11, the matching unit 12, the antenna coil 13 and the negative feedback 15 of the magnetic field due to the proximity of the target object of metal material, wherein,

In some embodiments, the feedback current i may be obtained at the receiving end RXP (end segment of the target coil) during a receiving period other than the transmitting period ₁ . Here, in order to obtain the feedback current, the reception period may set the transmission ports TX1 and TX2 to the off state.

In some embodiments, the feedback current may be acquired at the receiving end RXN (end segment of the target coil) during a receiving period other than the transmitting period.

In some embodiments, the feedback current may be acquired simultaneously at the receiving ends RXN and RXP (end segments of the target coils) at a receiving period different from the transmitting period.

And step S130, determining the attribute of the target object based on the feedback signal.

Here, the attribute of the target object may be a material of the target object.

In the implementation process, when an object of different materials approaches the antenna coil 13, the magnetic field negative feedback 15 shown in fig. 1C may be generated, or the magnetic field of the antenna coil 13 may not be affected. Thus, based on the different feedback signals, the attribute of the target object corresponding to the feedback signal is determined.

In the embodiment of the application, firstly, a detection current is transmitted to a starting section of a target coil; then receiving a feedback current from an ending segment of the target coil; and finally determining the attribute of the target object based on the feedback current. In this way, it is achieved that the detection signal is emitted by the target coil and the properties of the target object are determined based on the resulting feedback signal.

In some embodiments, before "determining the attribute of the target object" in the above step S130, the detection method further includes the steps of:

step S140, determining that the target object exists.

In the implementation process, the magnetic field formed by the detection current of the target coil can be influenced by an external object to change, so that the feedback current is influenced. It is possible to determine that the target object is present based on the feedback current and then to determine the properties of the target object.

In the embodiment of the application, the determination of the existence of the target object can be realized based on the feedback signal.

In some embodiments, the above step S140 "determining that the target object exists" may be implemented by the following procedure:

if the detected current is different from the feedback current, determining that the target object exists.

Here, since the feedback signal may be a feedback current received from the end segment of the target coil. A current difference threshold between the feedback current and the detected current may be set, and in case it is determined that the present current difference is greater than or equal to the current difference threshold, it may be determined that the detected current is different from the feedback current, i.e. it is determined that there is a target object affecting the electromagnetic field of the target coil.

In the embodiment of the application, the determination that the target object exists can be realized based on the fact that the detection current is different from the feedback current.

In some embodiments, before the determining that the target object exists in the step S140, the method further includes the steps of:

step S150, obtaining a detection signal;

here, the detection signal may be obtained using a sensor of at least one of: capacitive sensors, distance sensors, and light sensors. Correspondingly, the capacitance sensor obtains a capacitance detection signal, the distance sensor obtains a distance detection signal, and the light sensor obtains a light detection signal.

Step S160, if the detection signal meets a target condition, switching the working mode of the target coil from a first working mode to a second working mode, wherein the detection signal meets the target condition to represent that the target object exists in a target distance; the second working mode is used for determining the attribute of the target object, and the second working mode is different from the first working mode.

Here, the target condition may be set according to the actual demand. In the case where the detection signal satisfies the target condition, it may be determined that the target object exists within the target distance.

For example, a capacitance threshold of the capacitance sensor may be set, and in the case that the capacitance detection signal is determined to satisfy the capacitance threshold, it may be determined that the target object exists in the target distance; the distance threshold of the distance sensor can be set, and under the condition that the distance detection signal meets the distance threshold, the existence of a target object in the target distance can be determined; the optical threshold of the optical sensor may also be set, and in the case that it is determined that the optical detection signal satisfies the optical threshold, it may be determined that the target object exists in the target distance. In the implementation process, the above three detection methods may also be used in combination to determine whether a target object exists within the target distance.

Here, the first processor may be configured to interact with information using the target coil in the first mode of operation.

For example, in the first mode, the target coil may be implemented to transmit information to other devices using the transmission ports TX1 and TX2 as shown in fig. 1B, and in the implementation, the transmission of information may be implemented by transmitting differential signals 180 degrees out of phase through the transmission ports TX1 and TX 2. In the first mode, the target coil can be implemented to receive information transmitted by other devices using the receiving port RXP and the receiving port RXN as shown in fig. 1B. Here, the transmission information and the reception information are respectively performed in different time periods, that is, in the transmission time period, the reception port RXP and the reception port RXN may be set to be in an off state, so as to achieve normal information transmission; during the reception period, the transmission ports TX1 and TX2 may be set to an off state to achieve normal information reception.

The first processor may perform steps S110 to S130 in the second operation mode to determine the attribute of the target object.

In the embodiment of the application, the detection signal can be obtained first; and then switching the working mode of the target coil from the first working mode to the second working mode if the detection signal meets the target condition. Therefore, other detection units of different target coils can be utilized to determine that the target object exists in the target distance, and then the second working mode is switched to determine the attribute of the target object, so that the power consumption of the target coil for determining the existence of the target object is effectively reduced. And the target coil can work in the first working mode under the condition that the target object exists in the undetermined target distance, so that the function multiplexing of the first processor and the target coil in the two working modes is realized, and the hardware cost is saved.

In some embodiments, after the above step S130 of determining the property of the target object based on the feedback signal, the method further comprises the steps of:

step S170, if the attribute of the target object is metal, maintaining the transmitting power of the target antenna;

SAR is an index about radiation of electronic equipment such as mobile phones and the like to human bodies, the size of the SAR shows the influence of electromagnetic radiation of the electronic equipment on human body health, and the lower the SAR value is, the smaller the radiation is absorbed by the body. In the case where the attribute of the target object is determined to be metal, it can be determined that the user has placed the electronic apparatus on a metal material of such a type as a desk of iron or a notebook computer, at which time it is not necessary to reduce the transmission power of the target antenna, so that the transmission power of the target antenna is maintained.

And step S180, if the attribute of the target object is nonmetal, reducing the transmitting power of the target antenna.

Under the condition that the attribute of the target object is determined to be metal, the condition that the user is close to the electronic equipment can be determined, and the requirement of SAR value can be met by reducing the transmitting power of the target antenna.

In this embodiment of the present application, if the attribute of the target object is metal, maintaining the transmitting power of the target antenna; if the property of the target object is nonmetal, such as a human body, the transmitting power of the target antenna is reduced. Therefore, under the condition that the attribute of the target object is determined to be metal, the transmitting power of the target antenna is maintained, the problem that the power is reduced when a user places a mobile phone on an iron table or a notebook computer or other metal materials is solved, the effect that the user uses the transmitting signal of the electronic equipment is not influenced, and the use experience of the user is effectively improved.

Fig. 2A is a schematic structural diagram of an electronic device according to an embodiment of the present application, as shown in fig. 2A, where the electronic device includes:

a target coil 21 comprising a start section 211 and an end section 212;

a first processor 22, a transmitting port 221 of the first processor being configured to be connected to the start section 211, a receiving port 222 of the first processor 22 being configured to be connected to the end section 212, the first processor 22 being configured to transmit a probe current through the transmitting port 221 and to receive a feedback current of the probe current through the receiving port 222, wherein the target coil 21 forms a magnetic field for induction via the probe current.

Here, the first processor 22 may transmit a probe current through the transmission port 221, through which the target coil 21 forms a magnetic field for induction. In case the induced magnetic field experiences interference from an external object (target object), the external object may generate a reverse eddy current, forming a negative feedback of the magnetic field at the target coil 21. In this case, the first processor may receive a feedback current of the probe current through the receiving port 222.

In an embodiment of the application, an electronic device includes a target coil and a first processor. In this way, the first processor can transmit the detection current through the transmitting port and receive the feedback current of the detection current through the receiving port, and under the condition that the magnetic field generated by the target coil forms magnetic field negative feedback, the detection of the feedback current is realized.

Fig. 2B is a schematic structural diagram of an electronic device according to an embodiment of the present application, as shown in fig. 2B, where the electronic device further includes:

a second processor 23 for controlling the first processor to switch from a first operation mode to a second operation mode for determining a property of the target object, the second operation mode being different from the first operation mode.

In an implementation, the second processor may be a central processor (Central Processing Unit, CPU) of the electronic device and the first processor may be a processor coupled to the target coil. For example, in the case where the target coil is an NFC antenna coil, the first processor may be an NFC chip.

In this embodiment of the present application, the second processor is configured to control the first processor to switch from the first working mode to the second working mode. Therefore, the function multiplexing of the first processor and the target coil in the two working modes is realized, and the hardware cost is saved.

In some embodiments, the second processor is configured to obtain a detection signal; and controlling the first processor to switch from the first working mode to the second working mode if the detection signal meets the target condition.

Here, the target condition may be set according to the actual demand. And under the condition that the second processor obtains the detection signal and determines that the detection signal meets the target condition, the target object exists in the target distance, and the first processor is controlled to switch from the first working mode to the second working mode.

In the embodiment of the application, the second processor can be used for determining that the detection signal meets the target condition and then switching to the second working mode so as to determine the attribute of the target object, and the power consumption of the target coil for determining that the target object exists is effectively reduced.

In some embodiments, the second processor is configured to determine a property of the target object based on the feedback current.

Here, since the feedback signal may be a feedback current received from the end segment of the target coil. A current difference threshold between the feedback current and the detected current may be set, and in the case where it is determined that the present current difference is equal to or greater than the current difference threshold, a property of the target object may be determined. The attribute may be a metallic attribute or a nonmetallic attribute of the target object.

In the embodiment of the application, the attribute of the target object can be determined by the second processor based on the feedback current, so that the energy consumption of the first processor is saved.

Fig. 3 is a schematic structural diagram of a processing chip according to an embodiment of the present application, as shown in fig. 3, where the chip includes:

a transmitting port 31;

in the implementation process, one emission port 31 may be provided, or two emission ports 31 may be provided. Providing two emission ports 31 allows the detection current to be emitted with different emission ports in different emission periods.

A receiving port 32;

in the implementation process, one receiving port 32 may be provided, or two receiving ports 32 may be provided. The provision of two receiving ports 32 allows for the back-up detection of the feedback current to ensure that a reliable and efficient feedback current is obtained.

A processing unit 33 for transmitting a probe current to a target coil through the transmitting port 31 and receiving a feedback current of the probe current from the target coil through the receiving port 32; based on the feedback signal, a property of the target object is determined.

For example, the processing chip may be an NFC chip, and may be configured to transmit the probe current to the NFC coil through the transmitting port, and receive the feedback current of the probe current from the NFC coil through the receiving port.

In an embodiment of the present application, a processing chip includes a transmit port, a receive port, and a processor unit. The processing unit can transmit the detection current to the target coil through the transmitting port, and receive the feedback current of the detection current from the target coil through the receiving port, so that the attribute of the target object is determined based on the feedback current.

Fig. 4 is a flow chart of a method for determining that a metal is close to an electronic device according to an embodiment of the present application, as shown in fig. 4, including the following steps:

step S410, transmitting TX power;

in an implementation, the electronic device transmits TX power to enable wireless communication.

Step S420, judging whether the capacitive sensor is triggered;

in case it is determined that the capacitive sensor triggers, step S440 is performed; in case it is determined that the capacitive sensor is not triggered, step S430 is performed.

Step S430, entering into dormancy, waiting for the detection of the next working period;

here, the next operation cycle is a cycle of detecting whether or not a target object exists in the vicinity of the electronic apparatus.

Step S440, NFC transmits an interrogation signal;

here, the interrogation signal may be a probe current. In practice, as shown in fig. 1B, a probe current may be transmitted with a transmitting terminal TX1 during a first transmission period and received at a transmitting terminal TX2 to form a magnetic field 14. The probe current may be transmitted with the transmitting terminal TX2 in the second transmission period and received at the transmitting terminal TX1 to form the magnetic field 14.

Step S450, whether the NFC RX reflux current triggers a threshold;

here, the return current (feedback current) may be acquired in the reception period using the reception port RXP and/or the reception port RXN as shown in fig. 1B.

Here, the threshold may be set according to actual requirements, for example, a current difference threshold may be set to determine whether the current difference between the return current and the interrogation signal is greater than the current difference threshold.

In case it is determined that the NFC RX reflux current triggers a threshold, step S470 is performed; in case it is determined that the NFC RX reflow current does not exceed the trigger threshold, step S460 is performed.

Step S460, determining that a human body approaches, and carrying out power backspacing;

in the implementation process, when the target object is determined to be nonmetal based on the feedback current, the power backoff is performed to meet the SAR value requirement when it is determined that the human body is close.

Step S470, determining that the metal approaches, and no power back-off.

In the implementation process, under the condition that the target object is determined to be metal based on the feedback current, power back-off is not needed.

In the embodiment of the application, the NFC antenna function built in the current mobile phone is utilized to sense the approach of the target object, and whether the target object approaching the mobile phone at present is made of metal or not is judged, so that misjudgment of judging whether the approach of a human body exists or not by using the capacitance sensor is reduced. According to the scheme, the existing antenna frame can be combined, and under the condition that the capacitive sensor judges that a target object is close to the electronic equipment, the NFC chip triggers an interrogation signal through an algorithm of software. If the metal is close to the vicinity of the antenna device at this time, the receiving end of the NFC chip may sense the feedback current change, so as to realize whether the target object is metal.

Based on the foregoing embodiments, the embodiments of the present application provide a detection apparatus, where the apparatus includes each module included, and may be implemented by a processor in an electronic device; of course, the method can also be realized by a specific logic circuit; in practice, the processor may be a central processing unit (Central Processing Unit, CPU), microprocessor (Microprocessor Unit, MPU), digital signal processor (Digital Signal Process, DSP) or field programmable gate array (Field Programmable Gate Array, FPGA), etc.

Fig. 5 is a schematic structural diagram of a detection device according to an embodiment of the present application, as shown in fig. 5, the device 500 includes:

a transmitting module 510 for transmitting a detection signal, the detection signal being a detection current transmitted to a start section of the target coil;

a first obtaining module 520, configured to obtain a feedback signal for the detection signal, where the feedback signal is a feedback current received from an end segment of the target coil;

a first determining module 530 is configured to determine a property of the target object based on the feedback signal.

In some embodiments, the apparatus further comprises a second determination module for determining the presence of the target object.

In some embodiments, the second determining module is further configured to determine that the target object is present if the probe current is different from the feedback current.

In some embodiments, the apparatus further comprises a second obtaining module and a switching module, wherein the second obtaining module is configured to obtain a detection signal; the switching module is used for switching the working mode of the target coil from a first working mode to a second working mode if the detection signal meets a target condition, wherein the detection signal meets the target condition to represent that the target object exists in a target distance; the second working mode is used for determining the attribute of the target object, and the second working mode is different from the first working mode.

In some embodiments, the apparatus further comprises a maintaining module and a reducing module, wherein the maintaining module is configured to maintain the transmission power of the target antenna if the attribute of the target object is metal; and the reduction module is used for reducing the transmitting power of the target antenna if the attribute of the target object is nonmetal.

The description of the apparatus embodiments above is similar to that of the method embodiments above, with similar advantageous effects as the method embodiments. For technical details not disclosed in the device embodiments of the present application, please refer to the description of the method embodiments of the present application for understanding.

It should be noted that, in the embodiment of the present application, if the method is implemented in the form of a software functional module, and sold or used as a separate product, the method may also be stored in a computer readable storage medium. Based on such understanding, the technical solutions of the embodiments of the present application may be embodied essentially or in a part contributing to the related art in the form of a software product stored in a storage medium, including several instructions for causing an electronic device (which may be a mobile phone, a tablet computer, a notebook computer, a desktop computer, etc.) to perform all or part of the methods described in the embodiments of the present application. And the aforementioned storage medium includes: a U-disk, a removable hard disk, a Read Only Memory (ROM), a magnetic disk, an optical disk, or other various media capable of storing program codes. Thus, embodiments of the present application are not limited to any specific combination of hardware and software.

Correspondingly, the embodiment of the present application provides a storage medium having stored thereon a computer program which, when executed by a processor, implements the steps of the detection method provided in the above embodiment.

Correspondingly, an electronic device is provided in the embodiment of the present application, fig. 6 is a schematic diagram of a hardware entity of the electronic device provided in the embodiment of the present application, and as shown in fig. 6, the hardware entity of the device 600 includes: comprising a memory 601 and a processor 602, said memory 601 storing a computer program executable on the processor 602, said processor 602 implementing the steps of the detection method provided in the above embodiments when said program is executed.

The memory 601 is configured to store instructions and applications executable by the processor 602, and may also cache data (e.g., image data, audio data, voice communication data, and video communication data) to be processed or processed by the processor 602 and the modules in the electronic device 600, which may be implemented by a FLASH memory (FLASH) or a random access memory (Random Access Memory, RAM).

It should be noted here that: the description of the storage medium and apparatus embodiments above is similar to that of the method embodiments described above, with similar benefits as the method embodiments. For technical details not disclosed in the embodiments of the storage medium and the apparatus of the present application, please refer to the description of the method embodiments of the present application for understanding.

It should be appreciated that reference throughout this specification to "one embodiment" or "an embodiment" means that a particular feature, structure or characteristic described in connection with the embodiment is included in at least one embodiment of the present application. Thus, the appearances of the phrases "in one embodiment" or "in an embodiment" in various places throughout this specification are not necessarily all referring to the same embodiment. Furthermore, the particular features, structures, or characteristics may be combined in any suitable manner in one or more embodiments. It should be understood that, in various embodiments of the present application, the sequence numbers of the foregoing processes do not mean the order of execution, and the order of execution of the processes should be determined by the functions and internal logic thereof, and should not constitute any limitation on the implementation process of the embodiments of the present application. The foregoing embodiment numbers of the present application are merely for describing, and do not represent advantages or disadvantages of the embodiments.

It should be noted that, in this document, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising one … …" does not exclude the presence of other like elements in a process, method, article, or apparatus that comprises the element.

In the several embodiments provided in this application, it should be understood that the disclosed apparatus and method may be implemented in other ways. The above described device embodiments are only illustrative, e.g. the division of the units is only one logical function division, and there may be other divisions in practice, such as: multiple units or components may be combined or may be integrated into another system, or some features may be omitted, or not performed. In addition, the various components shown or discussed may be coupled or directly coupled or communicatively coupled to each other via some interface, whether indirectly coupled or communicatively coupled to devices or units, whether electrically, mechanically, or otherwise.

The units described above as separate components may or may not be physically separate, and components shown as units may or may not be physical units; can be located in one place or distributed to a plurality of network units; some or all of the units may be selected according to actual needs to achieve the purpose of the solution of this embodiment.

In addition, each functional unit in each embodiment of the present application may be integrated in one processing unit, or each unit may be separately used as one unit, or two or more units may be integrated in one unit; the integrated units may be implemented in hardware or in hardware plus software functional units.

Those of ordinary skill in the art will appreciate that: all or part of the steps for implementing the above method embodiments may be implemented by hardware related to program instructions, and the foregoing program may be stored in a computer readable storage medium, where the program, when executed, performs steps including the above method embodiments; and the aforementioned storage medium includes: a mobile storage device, a Read Only Memory (ROM), a magnetic disk or an optical disk, or the like, which can store program codes.

Alternatively, the integrated units described above may be stored in a computer readable storage medium if implemented in the form of software functional modules and sold or used as a stand-alone product. Based on such understanding, the technical solutions of the embodiments of the present application may be embodied essentially or in a part contributing to the related art in the form of a software product stored in a storage medium, including several instructions for causing an electronic device (which may be a mobile phone, a tablet computer, a notebook computer, a desktop computer, etc.) to perform all or part of the methods described in the embodiments of the present application. And the aforementioned storage medium includes: various media capable of storing program codes, such as a removable storage device, a ROM, a magnetic disk, or an optical disk.

The methods disclosed in the several method embodiments provided in the present application may be arbitrarily combined without collision to obtain a new method embodiment.

The features disclosed in the several product embodiments provided in the present application may be combined arbitrarily without conflict to obtain new product embodiments.

The features disclosed in the several method or apparatus embodiments provided in the present application may be arbitrarily combined without conflict to obtain new method embodiments or apparatus embodiments.

The foregoing is merely an embodiment of the present application, but the protection scope of the present application is not limited thereto, and any person skilled in the art can easily think about changes or substitutions within the technical scope of the present application, and the changes and substitutions are intended to be covered in the protection scope of the present application. Therefore, the protection scope of the present application shall be subject to the protection scope of the claims.

Claims

1. A method of detection, the method comprising:

based on the feedback signal, a property of the target object is determined.

2. The method of claim 1, prior to said determining the property of the target object, the method further comprising:

determining the presence of the target object.

3. The method of claim 2, the determining that a target object is present comprising:

4. The method of claim 2, the method further comprising:

obtaining a detection signal;

if the detection signal meets a target condition, switching the working mode of the target coil from a first working mode to a second working mode, wherein the detection signal meets the target condition to represent that the target object exists in a target distance; the second working mode is used for determining the attribute of the target object, and the second working mode is different from the first working mode.

5. The method of claim 1, the method further comprising:

if the attribute of the target object is metal, maintaining the transmitting power of the target antenna;

and if the attribute of the target object is nonmetal, reducing the transmitting power of the target antenna.

6. An electronic device, the electronic device comprising:

a target coil comprising a start segment and an end segment;

the first processor is used for transmitting detection current through the transmitting port and receiving feedback current of the detection current through the receiving port, wherein the target coil forms a magnetic field for induction through the detection current.

7. The electronic device of claim 6, the electronic device comprising:

and the second processor is used for controlling the first processor to switch from a first working mode to a second working mode, the second working mode is used for determining the attribute of the target object, and the second working mode is different from the first working mode.

8. The electronic device of claim 7, the second processor to obtain a detection signal; and controlling the first processor to switch from the first working mode to the second working mode if the detection signal meets the target condition.

9. The electronic device of claim 7, the second processor to determine a property of the target object based on the feedback current.

10. A processing chip, the chip comprising:

a transmit port;

a receiving port;

a processing unit for transmitting a detection current to a target coil through the transmitting port and receiving a feedback current of the detection current from the target coil through the receiving port; based on the feedback signal, a property of the target object is determined.