Search

CN-115732897-B - Electronic device and method for controlling SAR of electronic device

CN115732897BCN 115732897 BCN115732897 BCN 115732897BCN-115732897-B

Abstract

The electronic equipment comprises a non-suspended antenna radiator, a touch panel, an inductor, an SAR sensor and a controller, wherein the non-suspended antenna radiator, a grounding end and/or a feeding end are/is provided with a passage capable of transmitting direct current, the touch panel is provided with an induction unit used for inducing the distance between a user and the induction unit to generate a first capacitance signal, the inductor is arranged on the back side of the touch panel and used for inducing the distance between the user and the inductor to generate a second capacitance signal, the SAR sensor is connected with the inductor and the induction unit and used for receiving the first capacitance signal and the second capacitance signal, the controller is connected with the SAR sensor and used for controlling the emission power of the non-suspended antenna radiator according to the first capacitance signal and the second capacitance signal.

Inventors

  • ZHANG HUIBIN
  • LUO YIZHOU

Assignees

  • OPPO广东移动通信有限公司

Dates

Publication Date
20260508
Application Date
20210901

Claims (13)

  1. 1. An electronic device, the electronic device comprising: the non-suspended antenna radiator and the grounding end and/or the feed end are provided with a passage capable of transmitting direct current; The touch panel is provided with an induction unit, and the induction unit is used for inducing the distance between a user and the induction unit to generate a first capacitance signal; the inductor is arranged on the back side of the touch panel and is used for inducing the distance between a user and the inductor to generate a second capacitance signal; The SAR sensor is connected with the inductor and the induction unit and is used for receiving the first capacitance signal and the second capacitance signal; The controller is connected with the SAR sensor and is used for adjusting the transmitting power of the non-suspended antenna radiator according to the first capacitance signal and the second capacitance signal; The electronic device further includes: The frame comprises a first side edge, a bottom edge, a second side edge and a top edge which are sequentially connected end to end; a first non-suspended antenna radiator disposed on the first side; the touch panel comprises a first SAR sensing area and a second SAR sensing area, the distance between the first SAR sensing area and the first non-suspended antenna radiator is smaller than a first distance threshold, and the distance between the second SAR sensing area and the second non-suspended antenna radiator is smaller than a second distance threshold.
  2. 2. The electronic device of claim 1, wherein the controller is further configured to detect an operational state of the non-suspended antenna radiator and to control the operation of the sensing unit when the non-suspended antenna radiator is operating in a transmitting state.
  3. 3. The electronic device of claim 2, wherein the controller controls the sensing unit to be inactive when the non-suspended antenna radiator is operating in a non-transmitting state.
  4. 4. The electronic device of claim 1, wherein the sensing unit is further configured to sense a touch signal, the electronic device further comprising: And the switching circuit is respectively connected with the sensing unit, the SAR sensor and the touch control circuit, when a user touches the sensing unit, the switching circuit conducts the sensing unit and the touch control circuit so as to transmit the touch control signal to the touch control circuit, and when the user does not touch the sensing unit, the switching circuit conducts the sensing unit and the SAR sensor so as to transmit the touch control signal to the SAR sensor.
  5. 5. The electronic device of claim 1, wherein the touch panel includes a SAR sensing region, the sensing unit is disposed in the SAR sensing region, and a projection of the sensing body on the touch panel coincides with the SAR sensing region.
  6. 6. The electronic device of claim 1, wherein the electronic device comprises: The first inductor is arranged on the back side of the touch panel, and the projection of the first inductor on the touch panel is at least partially overlapped with the first SAR sensing area; The second inductor is arranged on the back side of the touch panel, and the projection of the second inductor on the touch panel is at least partially overlapped with the second SAR sensing area.
  7. 7. The electronic device of claim 1, wherein the electronic device further comprises: The first suspended antenna radiator is connected with the SAR sensor and comprises a first conductor section and a second conductor section, the first conductor section is connected with the second conductor section, the first conductor section is arranged on the first side edge, and the second conductor section is arranged on the top edge; the second suspended antenna radiator is connected with the SAR sensor and comprises a third conductor section and a fourth conductor section, the third conductor section is connected with the fourth conductor section, the third conductor section is arranged on the second side edge, and the fourth conductor section is arranged on the top edge; The third suspended antenna radiator is connected with the SAR sensor and comprises a fifth conductor section and a sixth conductor section, the fifth conductor section is connected with the sixth conductor section, the fifth conductor section is arranged on the second side edge, and the sixth conductor section is arranged on the bottom edge.
  8. 8. The electronic device of claim 1, wherein the inductor is a parasitic stub, the parasitic stub and the non-suspended antenna radiator being coupled.
  9. 9. The electronic device of claim 1, wherein the inductor and the antenna radiator are uncoupled, the inductor being one or more of a volume key, a power-on key, a fingerprint module, a receiver, a speaker module, a camera module, a wireless charging module, a motherboard support, a platelet support, an NFC module, a camera bezel, an electroacoustic module, and a conductor card holder.
  10. 10. The electronic device of claim 1, wherein the touch panel comprises: the sensing unit is arranged on the touch control layer; The display layer, the touch-control layer is located the light-emitting side of display layer, and the inductor is located the display layer is kept away from the one side of touch-control layer.
  11. 11. The electronic device of claim 1, wherein the touch panel comprises: The sensing unit is arranged on the display layer; the touch control layer is arranged on one side, far away from the light emitting side, of the display layer, and the inductor is arranged on one side, far away from the display layer, of the touch control layer.
  12. 12. A method of controlling an electronic device SAR, applied to control an electronic device according to claim 1, comprising: Acquiring a first capacitance signal sensed by a sensing unit and/or a second capacitance signal sensed by a sensing body, wherein the sensing unit is arranged on a touch panel, and the sensing body is arranged on the back side of the touch panel; And when any one of the first capacitance signal and the second capacitance signal is increased, the emission power of the non-suspended antenna radiator is reduced, and the non-suspended antenna radiator and the grounding end and/or the feeding end are provided with a passage capable of transmitting direct current.
  13. 13. The method of controlling an electronic device SAR according to claim 12, further comprising: Detecting the working state of the non-suspended antenna radiator, switching the induction unit to the working state when the non-suspended antenna radiator works in the emission state, and switching the induction unit to the non-working state when the non-suspended antenna radiator works in the non-emission state.

Description

Electronic device and method for controlling SAR of electronic device Technical Field The disclosure relates to the technical field of electronic equipment, in particular to electronic equipment and a method for controlling SAR of the electronic equipment. Background With the development and progress of technology, the application of 5G mobile terminals is gradually becoming widespread. In a 5G mobile terminal, the number of antennas is large, and SAR (Specific Absorption Rate, electromagnetic wave absorption ratio) compliance requirements are strict. In order to avoid SAR overrun, SAR detection for an electronic device is required. There is therefore a need for an electronic device capable of SAR detection. It should be noted that the information disclosed in the above background section is only for enhancing understanding of the background of the present disclosure and thus may include information that does not constitute prior art known to those of ordinary skill in the art. Disclosure of Invention The disclosure aims to provide an electronic device and a method for controlling SAR of the electronic device, wherein the electronic device can perform SAR detection. According to one aspect of the present disclosure, there is provided an electronic device including: the non-suspended antenna radiator and the grounding end and/or the feed end are provided with a passage capable of transmitting direct current; the touch panel is provided with a sensing unit, and the sensing unit is used for sensing the distance between a user and the sensing unit to generate a second capacitance signal; the sensor is arranged on the back side of the touch panel and is used for sensing the distance between a user and the sensor to generate a first capacitance signal; The SAR sensor is connected with the inductor and the induction unit and is used for receiving the first capacitance signal and the second capacitance signal; And the controller is connected with the SAR sensor and is used for adjusting the transmitting power of the non-suspended antenna radiator according to the first capacitance signal and the second capacitance signal. According to another aspect of the present disclosure, there is provided a method of controlling an electronic device SAR, the method comprising: acquiring a first capacitance signal sensed by a sensing unit and a second capacitance signal sensed by a sensing body, wherein the sensing unit is arranged on the touch panel, and the sensing body is arranged on the back side of the touch panel; And when any one of the first capacitance signal and the second capacitance signal is increased, the emission power of the non-suspended antenna radiator is reduced, and the non-suspended antenna radiator and the grounding end and/or the feeding end are provided with a passage capable of transmitting direct current. According to the electronic equipment provided by the embodiment of the disclosure, the first capacitance signal is generated according to the distance induction of the user and the induction unit, the second capacitance signal is generated according to the distance induction of the user and the induction body, the SAR sensor receives the first capacitance signal and the second capacitance signal, and the controller controls the transmitting power of the non-suspended antenna radiator according to the first capacitance signal and/or the second capacitance signal, so that the electronic equipment can detect the SAR signal corresponding to the antenna radiator with the direct current channel at the grounding end and/or the feeding end, and further can adjust the transmitting power of the non-suspended antenna radiator so as to ensure SAR compliance. And the inductor body can induce the user to be close to the back of the electronic equipment, and the induction unit can induce the user to be close to the front of the electronic equipment, so that the problem that the user cannot be detected to be close to the front of the electronic equipment due to the shielding effect of the display device is avoided, the distance of the user is detected in an omnibearing manner, and the accuracy of SAR control can be improved. It is to be understood that both the foregoing general description and the following detailed description are exemplary and explanatory only and are not restrictive of the disclosure. Drawings The accompanying drawings, which are incorporated in and constitute a part of this specification, illustrate embodiments consistent with the disclosure and together with the description, serve to explain the principles of the disclosure. It will be apparent to those of ordinary skill in the art that the drawings in the following description are merely examples of the disclosure and that other drawings may be derived from them without undue effort. Fig. 1 is a schematic diagram of a first electronic device provided in an exemplary embodiment of the present disclosure; FIG. 2 is a schematic diagram of a sec