CN107579754B - Communication terminal and control method thereof - Google Patents
Communication terminal and control method thereof Download PDFInfo
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- CN107579754B CN107579754B CN201710833748.3A CN201710833748A CN107579754B CN 107579754 B CN107579754 B CN 107579754B CN 201710833748 A CN201710833748 A CN 201710833748A CN 107579754 B CN107579754 B CN 107579754B
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Abstract
The application discloses a control method of a communication terminal, which comprises the following steps: obtaining an environment capacitance value; comparing the environmental capacitance value with a preset first interval; under the condition that the environment capacitance value is located in the first interval, judging whether a first preset condition is met or not so as to determine whether a comparison result of the environment capacitance value located in the first interval is generated by approaching of a human body or not; and controlling the radio frequency module to perform power-down operation under the condition that a first preset condition is met. Based on the control method disclosed by the application, the possibility that the radio frequency module executes the power reduction operation in an unnecessary state can be reduced on the premise of ensuring the safety of a user, and the communication performance of the communication terminal is ensured. The application also discloses a corresponding communication terminal.
Description
Technical Field
The present application belongs to the field of communication technologies, and in particular, to a communication terminal and a control method thereof.
Background
The communication terminal communicates with other communication devices using a Radio Frequency (RF) module, which mainly includes a mixer, a power amplifier, a filter, a matching network, and a radio frequency antenna. RF signals transmitted from communication terminals may be harmful to human bodies. At present, SAR (Specific Absorption Rate) is generally used to quantify and measure radiation of a communication terminal.
In designing a communication terminal, both communication performance requirements and SAR requirements are considered. The main treatment modes at present are: when the communication terminal is determined to be possibly harmful to the human body, the radio frequency module is controlled to perform power-down operation, so that electromagnetic waves absorbed by the human body are reduced. For those skilled in the art, how to accurately control the rf module to perform power-down operation to avoid the communication performance degradation of the communication terminal caused by misoperation is a problem to be considered.
Disclosure of Invention
In view of the above, an object of the present invention is to provide a communication terminal and a control method thereof, so as to more accurately control a radio frequency module to perform a power down operation, and reduce the possibility of a reduction in communication performance of the communication terminal due to an erroneous operation on the premise of ensuring user safety.
In order to achieve the above purpose, the present application provides the following technical solutions:
the application provides a control method of a communication terminal, wherein the communication terminal comprises a radio frequency module, and the control method comprises the following steps:
obtaining an environment capacitance value;
comparing the environmental capacitance value with a preset first interval;
under the condition that the environment capacitance value is located in a first interval, judging whether a first preset condition is met or not so as to determine whether a comparison result of the environment capacitance value located in the first interval is generated by approaching of a human body or not;
and controlling the radio frequency module to perform power-down operation under the condition that a first preset condition is met.
Optionally, the communication terminal is provided with an inductance coil, and the inductance coil can generate an alternating magnetic field; in the above control method, the determining whether the first preset condition is satisfied includes:
obtaining the impedance of the inductance coil;
judging whether the impedance of the inductance coil changes or not;
and determining that the first preset condition is met under the condition that the impedance of the inductance coil changes.
Optionally, the communication terminal includes a near field communication NFC antenna, and the inductance coil is a coil of the NFC antenna; in the above control method, the obtaining the impedance of the inductance coil is: obtaining an impedance of a coil of the NFC antenna.
Optionally, the communication terminal includes a wireless charging module, and the inductance coil is an induction coil of the wireless charging module; in the above control method, the obtaining the impedance of the inductance coil is: and obtaining the impedance of the induction coil of the wireless charging module.
Optionally, the communication terminal is provided with at least one pressure sensor, and the pressure sensor is used for detecting the pressure borne by the communication terminal; in the above control method, the determining whether the first preset condition is satisfied includes:
obtaining a pressure value output by the pressure sensor;
judging whether the pressure value output by the pressure sensor is in a preset pressure interval or not;
and determining that the first preset condition is met under the condition that the pressure values output by a preset number of pressure sensors are in a preset pressure interval.
The present application further provides a communication terminal, including:
a radio frequency module;
an electromagnetic wave absorption ratio SAR sensor for detecting an environmental capacitance;
a processor coupled to the radio frequency module and the SAR sensor, the processor configured to: the method comprises the steps of obtaining an environment capacitance value output by the SAR sensor, comparing the environment capacitance value with a preset first interval, judging whether a first preset condition is met or not under the condition that the environment capacitance value is located in the first interval so as to determine whether a comparison result that the environment capacitance value is located in the first interval is generated by approaching of a human body or not, and controlling the radio frequency module to perform power reduction operation under the condition that the first preset condition is met.
Optionally, the communication terminal is provided with an inductance coil and an impedance detection module, the inductance coil is capable of generating an alternating magnetic field, and the impedance detection module is connected to the processor and is configured to detect impedance of the inductance coil;
the processor is specifically configured to, in the aspect of determining whether the first preset condition is satisfied: the processor obtains the impedance of the inductance coil output by the impedance detection module, judges whether the impedance of the inductance coil changes or not, and determines that the first preset condition is met under the condition that the impedance of the inductance coil changes.
Optionally, the communication terminal includes a near field communication NFC antenna, and a coil of the NFC antenna is used as the inductance coil.
Optionally, the communication terminal includes a wireless charging module, and an induction coil of the wireless charging module is used as the induction coil.
Optionally, the communication terminal is provided with at least one pressure sensor, and the pressure sensor is used for detecting the pressure borne by the communication terminal;
the processor is specifically configured to, in the aspect of determining whether the first preset condition is satisfied: the processor obtains the pressure values output by the pressure sensors, judges whether the pressure values output by the pressure sensors are in a preset pressure interval or not, and determines that the first preset condition is met under the condition that the pressure values output by a preset number of pressure sensors are in the preset pressure interval.
Therefore, the beneficial effects of the application are as follows:
the control method of the mobile terminal compares the obtained environment capacitance value with a preset first interval, judges whether a first preset condition is met or not if the obtained environment capacitance value is located in the first interval, and controls the radio frequency module to perform power reduction operation under the condition that the first preset condition is determined to be met, so that radiation of the communication terminal is reduced, and electromagnetic waves absorbed by a human body are reduced. According to the control method of the mobile terminal, the possibility that the radio frequency module executes the power reduction operation in an unnecessary state can be reduced on the premise of ensuring the safety of a user, and the communication performance of the communication terminal is ensured.
Drawings
In order to more clearly illustrate the technical solutions in the embodiments of the present application, the drawings needed to be used in the description of the embodiments are briefly introduced below, and it is obvious that the drawings in the following description are only embodiments of the present application, and it is obvious for those skilled in the art to obtain other drawings based on the provided drawings without creative efforts.
Fig. 1 is a flowchart of a control method of a communication terminal disclosed in the present application;
fig. 2 is a flowchart of another control method of a communication terminal disclosed in the present application;
fig. 3 is a flowchart of another communication terminal control method disclosed in the present application;
fig. 4 is a schematic structural diagram of a communication terminal disclosed in the present application;
fig. 5 is a schematic structural diagram of another communication terminal disclosed in the present application;
fig. 6 is a schematic structural diagram of another communication terminal disclosed in the present application.
Detailed Description
The application discloses a communication terminal and a control method thereof, which can more accurately control a radio frequency module to perform power reduction operation on the premise of ensuring user safety, and reduce the possibility of communication performance reduction of the communication terminal caused by misoperation. The communication terminal comprises a radio frequency module, and can be a mobile phone, a tablet personal computer or wearable equipment.
The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application, and it is obvious that the described embodiments are only a part of the embodiments of the present application, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present application.
Referring to fig. 1, fig. 1 is a flowchart of a control method of a communication terminal disclosed in the present application. The control method comprises the following steps:
step S11: an ambient capacitance value is obtained.
Step S12: and comparing the environmental capacitance value with a preset first interval.
The communication terminal is provided with an SAR sensor, the SAR sensor is used for detecting the environment capacitance, and the obtained environment capacitance is compared with a preset first interval.
In practice, the upper limit and the lower limit of the first section are set with reference to the environmental capacitance value detected when the user holds the communication terminal. That is, if the user holds the communication terminal, the environmental capacitance value detected by the SAR sensor of the communication terminal is within the preset first interval.
Optionally, the communication terminal executes the operation of obtaining the environment capacitance value and the subsequent operation when the radio frequency module of the communication terminal is in the on state. If the radio frequency module of the communication terminal is in the off state, the operation of obtaining the environmental capacitance value and the subsequent operation can be suspended.
Step S13: and under the condition that the environment capacitance value is in the first interval, judging whether a first preset condition is met or not so as to determine whether a comparison result of the environment capacitance value in the first interval is generated by the approach of a human body or not.
Step S14: and controlling the radio frequency module to perform power-down operation under the condition that a first preset condition is met.
The environmental capacitance of the human body is closer to the environmental capacitance of the metal, and the comparison result that the environmental capacitance value obtained by the communication terminal is within the first interval may be generated because the user approaches the communication terminal (including holding the communication terminal), or may be generated because the communication terminal approaches the metal. For example, placing the communication terminal on a metal desktop may cause the environmental capacitance obtained by the communication terminal to be within the first interval.
Therefore, the communication terminal further determines whether a first preset condition is satisfied in the case that the obtained environment capacitance value is within the first interval, so as to determine whether the comparison result of the environment capacitance value within the first interval is generated by the approach of the human body. And under the condition that the communication terminal determines that the first preset condition is met, namely whether the comparison result that the environment capacitance value is positioned in the first interval is generated by the approach of the human body or not, the communication terminal controls the radio frequency module to perform power-down operation so as to reduce the radiation of the communication terminal and further reduce the electromagnetic waves absorbed by the human body. And the radio frequency module keeps the current running state under the condition that the communication terminal is determined not to meet the first preset condition.
According to the control method of the mobile terminal disclosed by the application, the obtained environment capacitance value is compared with the preset first interval, if the obtained environment capacitance value is located in the first interval, whether the first preset condition is met or not is judged, under the condition that the first preset condition is met, the comparison result that the environment capacitance value is located in the first interval is generated by the approach of a human body, and the radio frequency module is controlled to perform power reduction operation, so that the radiation of the communication terminal is reduced, and the electromagnetic wave absorbed by the human body is reduced. According to the control method of the mobile terminal, the possibility that the radio frequency module executes the power reduction operation in an unnecessary state can be reduced on the premise of ensuring the safety of a user, and the communication performance of the communication terminal is ensured.
In practice, various schemes may be adopted for determining whether the first preset condition is satisfied in step S13. The following description will be made separately.
Referring to fig. 2, fig. 2 is a flowchart illustrating another control method of a mobile terminal disclosed in the present application.
Wherein the mobile terminal is provided with an inductor coil capable of generating an alternating magnetic field. The control method comprises the following steps:
step S21: an ambient capacitance value is obtained.
Step S22: and comparing the environmental capacitance value with a preset first interval.
Step S23: in the case where the ambient capacitance value is within the first interval, the impedance of the inductor coil is obtained.
Step S24: and judging whether the impedance of the inductance coil changes or not.
Step S25: and under the condition that the impedance of the inductance coil is changed, controlling the radio frequency module to perform power-down operation.
The mobile terminal is provided with an inductor coil capable of generating an alternating magnetic field. In the process that the mobile terminal approaches to the metal object, under the action of the alternating magnetic field generated by the inductance coil, induced current is generated inside the metal object, and the induced current generated by the metal object reacts on the inductance coil, so that the equivalent impedance of the inductance coil changes. When a human body approaches the mobile terminal, the equivalent impedance of the inductance coil does not change.
Therefore, under the condition that the environment capacitance value is located in the first interval, the impedance of the inductance coil is obtained, whether the impedance of the inductance coil changes or not is judged, if the impedance of the inductance coil does not change, the comparison result that the environment capacitance value is located in the first interval is generated by the approach of a human body, the radio frequency module is controlled to carry out power reduction operation, if the impedance of the inductance coil changes, the comparison result that the environment capacitance value is located in the first interval is generated by the approach of metal, the process is finished, and the radio frequency module keeps the current running state.
That is, determining whether the first preset condition is satisfied specifically includes: the method comprises the steps of obtaining the impedance of an inductance coil, judging whether the impedance of the inductance coil changes or not, determining that a first preset condition is met under the condition that the impedance of the inductance coil changes, and controlling a radio frequency module to perform power reduction operation.
The change in the impedance of the inductor coil means: the change amount of the impedance of the inductance coil reaches a predetermined value, wherein the predetermined value is calibrated through a plurality of experiments, and the predetermined value is larger than the change amount of the impedance of the inductance coil of the mobile terminal under the condition of being far away from the metal object. That is, in the case where the mobile terminal is far from the metal object, there is a possibility that the impedance of the inductor coil changes (may be a slight change), and the aforementioned predetermined value should be larger than the amount of change in the impedance of the inductor coil in the aforementioned state.
In the control method of the communication terminal shown in fig. 2, when the obtained environment capacitance value is in the first interval, the impedance of the inductance coil inside the communication terminal is obtained, and whether the comparison result that the obtained environment capacitance value is in the preset first interval is generated by the approach of a human body is determined by judging whether the impedance of the inductance coil changes, that is, the communication terminal further determines whether a user approaches the communication terminal based on the impedance of the inductance coil, so that the radio frequency module can be accurately controlled to perform power reduction operation when the user approaches the communication terminal, and on the premise of ensuring the user safety, the possibility that the radio frequency module performs power reduction operation in an unnecessary state is reduced, and the communication performance of the communication terminal is ensured.
In implementation, an inductance coil capable of generating an alternating magnetic field may be disposed in a housing of the mobile terminal. For example, an inductive coil may be disposed proximate to an antenna in the radio frequency module.
Optionally, in a case where the communication terminal includes an NFC antenna (i.e., a near field communication antenna), the coil of the NFC antenna is used as an inductance coil. Correspondingly, the impedance of the inductance coil obtained in step S23 specifically includes: the impedance of the coil of the NFC antenna is obtained.
That is to say, on the one hand, the coil of the NFC antenna acts as a radiator of the NFC antenna and, on the other hand, the coil of the NFC antenna acts as an induction coil. And determining whether the comparison result of the environment capacitance value within the first interval is generated by the approach of the human body according to the impedance of the coil of the NFC antenna under the condition that new hardware is not added.
Optionally, when the communication terminal includes the wireless charging module, the induction coil of the wireless charging module is used as the induction coil. Correspondingly, the impedance of the inductance coil obtained in step S23 specifically includes: and obtaining the impedance of the induction coil of the wireless charging module.
That is, the induction coil of the wireless charging module is used as the induction coil at the same time. And under the condition of not adding new hardware, determining whether a comparison result of the environment capacitance value in the first interval is generated by the approach of a human body according to the impedance of the induction coil of the wireless charging module.
Referring to fig. 3, fig. 3 is a flowchart illustrating another control method of a mobile terminal disclosed in the present application. The mobile terminal comprises a radio frequency module and at least one pressure sensor, and the pressure sensor of the mobile terminal is used for detecting the pressure born by the communication terminal. The control method comprises the following steps:
step S31: an ambient capacitance value is obtained.
Step S32: and comparing the environmental capacitance value with a preset first interval.
Step S33: and under the condition that the environmental capacitance value is within the first interval, obtaining the pressure value output by the pressure sensor.
Step S24: and judging whether the pressure value output by the pressure sensor is in a preset pressure interval or not.
Step S35: and under the condition that the pressure values output by a preset number of pressure sensors are in a preset pressure interval, controlling the radio frequency module to perform power reduction operation.
When the mobile terminal is held by a user, the shell of the mobile terminal bears a certain pressure, and the pressure sensor arranged on the mobile terminal can be used for detecting the pressure borne by the mobile terminal. Under the condition that the environment capacitance value is located in the first interval, obtaining the pressure value output by the pressure sensors, if the pressure values output by the pressure sensors with the preset number are located in the preset pressure interval, indicating that the comparison result that the environment capacitance value is located in the first interval is generated by the approach of a human body, controlling the radio frequency module to perform power reduction operation, otherwise, indicating that the comparison result that the environment capacitance value is located in the first interval is generated by the approach of metal, ending the process, and keeping the current running state by the radio frequency module.
That is, determining whether the first preset condition is satisfied specifically includes: the method comprises the steps of obtaining pressure values output by pressure sensors, judging whether the pressure values output by the pressure sensors are in a preset pressure interval or not, determining that a first preset condition is met under the condition that the pressure values output by a preset number of pressure sensors are in the preset pressure interval, and controlling a radio frequency module to perform power reduction operation.
The communication terminal comprises a panel, a back plate and four frames arranged between the panel and the back plate, wherein the four frames are respectively called as a left frame, a right frame, an upper frame and a lower frame. When the communication terminal is placed on a desktop or other objects, the four borders of the communication terminal are not usually in contact with other objects. As an embodiment, at least one pressure sensor is disposed on a frame of the communication terminal. In another embodiment, at least one pressure sensor is disposed on each of a plurality of frames of the communication terminal.
In the control method of the communication terminal shown in fig. 3, under the condition that the obtained environment capacitance value is located in the first interval, the pressure value output by the pressure sensor is obtained, and whether the comparison result that the obtained environment capacitance value is located in the preset first interval is generated by the approach of a human body is determined by judging whether the pressure values output by the pressure sensors in the preset number are in the preset pressure interval, that is, the communication terminal further determines whether a user approaches the communication terminal based on the pressure values output by the pressure sensors, so that the radio frequency module can be accurately controlled to perform power reduction operation when the user approaches the communication terminal, on the premise of ensuring the safety of the user, the possibility that the radio frequency module performs power reduction operation in an unnecessary state is reduced, and the communication performance of the communication terminal is ensured.
The present application also discloses a communication terminal, the structure of which is shown in fig. 4, including: a radio frequency module 10, a SAR sensor 20 and a processor 30 connected by a bus.
Wherein:
the rf module 10 includes at least an rf antenna. The communication terminal communicates with other communication devices through the radio frequency module 10.
The SAR sensor 20 is used to detect ambient capacitance.
The processor 30 is configured to: obtaining an environmental capacitance value output by the SAR sensor 20, comparing the obtained environmental capacitance value with a preset first interval, judging whether a first preset condition is met or not when the obtained environmental capacitance value is within the first interval, so as to determine whether a comparison result of the environmental capacitance value within the first interval is generated by approach of a human body or not, and controlling the radio frequency module 10 to perform power-down operation when the first preset condition is met.
The communication terminal shown in fig. 4 of the present application utilizes the SAR sensor to detect the environmental capacitance, compare the detected environmental capacitance with a preset first interval, if the environmental capacitance is located in the first interval, determine whether to satisfy a first preset condition, under the condition that the first preset condition is satisfied, indicate that the comparison result that the environmental capacitance is located in the first interval is generated by the approach of a human body, control the radio frequency module to perform power reduction operation, so as to reduce the radiation of the communication terminal, thereby reducing the electromagnetic wave absorbed by the human body. The communication terminal disclosed by the application can reduce the possibility that the radio frequency module executes the power reduction operation in an unnecessary state on the premise of ensuring the safety of a user, and ensures the communication performance of the communication terminal.
Referring to fig. 5, fig. 5 is a schematic structural diagram of another communication terminal disclosed in the present application. The communication terminal comprises a radio frequency module 10, a SAR sensor 20, a processor 30, an induction coil 40 and an impedance detection module 50 connected by a bus.
Wherein:
the rf module 10 includes at least an rf antenna.
The SAR sensor 20 is used to detect ambient capacitance.
The inductor 40 is capable of generating an alternating magnetic field. In practice, the inductive coil 40 may be positioned proximate to the radio frequency antenna.
The impedance detection module 50 is used for detecting the impedance of the inductance coil 40.
The processor 30 is configured to: obtaining an environmental capacitance value output by the SAR sensor 20, comparing the obtained environmental capacitance value with a preset first interval, judging whether a first preset condition is met or not when the obtained environmental capacitance value is within the first interval, so as to determine whether a comparison result of the environmental capacitance value within the first interval is generated by approach of a human body or not, and controlling the radio frequency module 10 to perform power-down operation when the first preset condition is met. In the aspect of determining whether the first preset condition is met, the processor 30 is specifically configured to: the impedance of the inductance coil 40 output by the impedance detection module 50 is obtained, whether the impedance of the inductance coil 40 changes or not is judged, and it is determined that the first preset condition is met under the condition that the impedance of the inductance coil 40 changes.
Alternatively, in the case where the communication terminal includes an NFC antenna (i.e., a near field communication antenna), the coil of the NFC antenna is used as the inductance coil 40.
Optionally, in a case that the communication terminal includes a wireless charging module, an induction coil of the wireless charging module is used as the induction coil 40.
The communication terminal shown in fig. 5 of the present application, utilize the SAR sensor to detect the environmental capacitance, compare the detected environmental capacitance value with the preset first interval, if the environmental capacitance value is located in the first interval, judge whether the impedance of the inductance coil changes, determine whether the comparison result that the obtained environmental capacitance value is located in the preset first interval is generated by the approach of a human body, thereby accurately control the radio frequency module to perform the power reduction operation when the user approaches, on the premise of ensuring the user safety, reduce the possibility that the radio frequency module performs the power reduction operation in an unnecessary state, and ensure the communication performance of the communication terminal.
Referring to fig. 6, fig. 6 is a schematic structural diagram of another communication terminal disclosed in the present application. The communication terminal includes a radio frequency module 10, a SAR sensor 20, a processor 30, and pressure sensors 601 and 602 connected by a bus.
Wherein:
the rf module 10 includes at least an rf antenna.
The SAR sensor 20 is used to detect ambient capacitance.
The pressure sensors 601 and 602 are used to detect the pressure to which the communication terminal is subjected.
Fig. 6 is an example, and the number of pressure sensors is not limited to 2 in the embodiment. As an embodiment, at least one pressure sensor is disposed on a frame of the communication terminal. In another embodiment, at least one pressure sensor is disposed on each of a plurality of frames of the communication terminal.
The processor 30 is configured to: obtaining an environmental capacitance value output by the SAR sensor 20, comparing the obtained environmental capacitance value with a preset first interval, judging whether a first preset condition is met or not when the obtained environmental capacitance value is within the first interval, so as to determine whether a comparison result of the environmental capacitance value within the first interval is generated by approach of a human body or not, and controlling the radio frequency module 10 to perform power-down operation when the first preset condition is met. In the aspect of determining whether the first preset condition is met, the processor 30 is specifically configured to: the method comprises the steps of obtaining pressure values output by pressure sensors, judging whether the pressure values output by the pressure sensors are in a preset pressure interval or not, and determining that a first preset condition is met under the condition that the pressure values output by a preset number of pressure sensors are in the preset pressure interval.
The communication terminal shown in fig. 6 of the present application, utilize SAR sensor to detect the environment capacitance, compare the detected environment capacitance value with the preset first interval, if the environment capacitance value is located in the first interval, determine whether the comparison result that the obtained environment capacitance value is located in the preset first interval is generated by human body's proximity by judging whether there is the pressure value that the pressure sensor of the preset number outputs in the preset pressure interval, thereby can accurately control the radio frequency module to perform the power reduction operation when the user approaches, on the premise of guaranteeing the user safety, reduce the possibility that the radio frequency module performs the power reduction operation under the unnecessary state, and guarantee the communication performance of the communication terminal.
Finally, it should also be noted that, herein, relational terms such as first and second, and the like may be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, 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 an … …" does not exclude the presence of other identical elements in a process, method, article, or apparatus that comprises the element.
The embodiments in the present description are described in a progressive manner, each embodiment focuses on differences from other embodiments, and the same and similar parts among the embodiments are referred to each other. For the communication terminal disclosed in the embodiment, since it corresponds to the method disclosed in the embodiment, the description is relatively simple, and for the relevant points, refer to the description of the method part.
The previous description of the disclosed embodiments is provided to enable any person skilled in the art to make or use the present application. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the generic principles defined herein may be applied to other embodiments without departing from the spirit or scope of the application. Thus, the present application is not intended to be limited to the embodiments shown herein but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.
Claims (8)
1. A control method of a communication terminal, wherein the communication terminal comprises a radio frequency module, the control method comprising:
obtaining an environment capacitance value;
comparing the environment capacitance value with a preset first interval, wherein the preset first interval refers to the environment capacitance value detected under the condition that a user holds the communication terminal;
under the condition that the environment capacitance value is located in a first interval, judging whether a first preset condition is met or not so as to determine whether a comparison result of the environment capacitance value located in the first interval is generated by approaching of a human body or not;
under the condition that a first preset condition is met, controlling the radio frequency module to perform power reduction operation;
the communication terminal is provided with an inductance coil, the inductance coil can generate an alternating magnetic field, in the process that the communication terminal is close to a metal object, under the action of the alternating magnetic field generated by the inductance coil, induced current is generated inside the metal object, the induced current generated by the metal object acts on the inductance coil in a reaction manner, so that the equivalent impedance of the inductance coil changes, when a human body is close to the mobile terminal, the equivalent impedance of the inductance coil cannot change, and the change of the impedance of the inductance coil means that: the variation of the impedance of the inductance coil reaches a predetermined value;
the judging whether the first preset condition is met includes:
obtaining the impedance of the inductance coil;
judging whether the impedance of the inductance coil changes or not;
and determining that the first preset condition is met under the condition that the impedance of the inductance coil is not changed.
2. The control method according to claim 1, wherein the communication terminal includes a Near Field Communication (NFC) antenna, and the inductive coil is a coil of the NFC antenna;
the obtained impedance of the inductance coil is as follows: obtaining an impedance of a coil of the NFC antenna.
3. The control method according to claim 1, wherein the communication terminal comprises a wireless charging module, and the inductance coil is an induction coil of the wireless charging module;
the obtained impedance of the inductance coil is as follows: and obtaining the impedance of the induction coil of the wireless charging module.
4. The control method according to claim 1, characterized in that the communication terminal is provided with at least one pressure sensor for detecting the pressure to which the communication terminal is subjected; the judging whether the first preset condition is met includes:
obtaining a pressure value output by the pressure sensor;
judging whether the pressure value output by the pressure sensor is in a preset pressure interval or not;
and determining that the first preset condition is met under the condition that the pressure values output by a preset number of pressure sensors are in a preset pressure interval.
5. A communication terminal, comprising:
a radio frequency module;
an electromagnetic wave absorption ratio SAR sensor for detecting an environmental capacitance;
a processor coupled to the radio frequency module and the SAR sensor, the processor configured to: obtaining an environmental capacitance value output by the SAR sensor, comparing the environmental capacitance value with a preset first interval, wherein the preset first interval refers to the environmental capacitance value detected when a user holds the communication terminal, judging whether a first preset condition is met or not when the environmental capacitance value is in the first interval so as to determine whether the comparison result of the environmental capacitance value in the first interval is generated by the approach of a human body or not, and controlling the radio frequency module to perform power reduction operation when the first preset condition is met, wherein the communication terminal is provided with an inductance coil which can generate an alternating magnetic field, and in the process that the communication terminal approaches a metal object, under the action of the alternating magnetic field generated by the inductance coil, an induced current is generated inside the metal object, and the induced current generated by the metal object reacts on the inductance coil, the equivalent impedance of the inductance coil changes, when a human body approaches the mobile terminal, the equivalent impedance of the inductance coil does not change, the impedance of the inductance coil changes, namely the variation of the impedance of the inductance coil reaches a preset value, the impedance detection module is connected with the processor and used for detecting the impedance of the inductance coil, and the processor is specifically used for: the processor obtains the impedance of the inductance coil output by the impedance detection module, judges whether the impedance of the inductance coil changes or not, and determines that the first preset condition is met under the condition that the impedance of the inductance coil does not change.
6. The communication terminal according to claim 5, characterized in that the communication terminal comprises a near field communication, NFC, antenna, the coil of which acts as the inductive coil.
7. The communication terminal according to claim 5, wherein the communication terminal comprises a wireless charging module, and an induction coil of the wireless charging module is used as the induction coil.
8. A communication terminal according to claim 5, characterized in that the communication terminal is provided with at least one pressure sensor for detecting the pressure to which the communication terminal is subjected;
the processor is specifically configured to, in the aspect of determining whether the first preset condition is satisfied: the processor obtains the pressure values output by the pressure sensors, judges whether the pressure values output by the pressure sensors are in a preset pressure interval or not, and determines that the first preset condition is met under the condition that the pressure values output by a preset number of pressure sensors are in the preset pressure interval.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710833748.3A CN107579754B (en) | 2017-09-15 | 2017-09-15 | Communication terminal and control method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710833748.3A CN107579754B (en) | 2017-09-15 | 2017-09-15 | Communication terminal and control method thereof |
Publications (2)
| Publication Number | Publication Date |
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| CN107579754A CN107579754A (en) | 2018-01-12 |
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| CN108429575A (en) * | 2018-05-29 | 2018-08-21 | Oppo（重庆）智能科技有限公司 | antenna switching method, mobile terminal and computer readable storage medium |
| CN109104521B (en) * | 2018-06-21 | 2020-12-29 | Oppo广东移动通信有限公司 | Method and device for correcting approaching state, mobile terminal and storage medium |
| CN109743070B (en) * | 2018-12-29 | 2021-07-16 | 联想(北京)有限公司 | Electronic device and information processing method |
| CN113014284B (en) * | 2019-12-19 | 2023-03-28 | 深圳市万普拉斯科技有限公司 | Transmission power adjusting method, device, terminal equipment and readable storage medium |
| CN112039228A (en) * | 2020-08-31 | 2020-12-04 | 维沃移动通信有限公司 | Charging circuit of electronic device and charging method of electronic device |
| WO2022140957A1 (en) * | 2020-12-28 | 2022-07-07 | 深圳市汇顶科技股份有限公司 | Nfc device |
| CN117406290B (en) * | 2023-12-15 | 2024-04-19 | 荣耀终端有限公司 | Adsorption detection system and adsorption detection method |
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