Electronic device and external antenna switching method thereof

Abstract

The invention discloses an electronic device and an external antenna switching method. The external antenna switching method is suitable for the electronic device, the electronic device comprises an external antenna group, a detection module and a switching module, and the external antenna group comprises a plurality of external antennas and a plurality of power supply loops. The external antenna switching method comprises the following steps: the detection module detects an enabling signal of an external antenna group; when the detection module detects the enabling signal, the switching module enables the plurality of external antennas according to the plurality of power supply loops.

Description

Technical Field

[0001] The present invention relates to an electronic device and an external antenna switching method, and more particularly to an external antenna switching method for switching to a specific external antenna according to a power supply circuit of an external antenna group when the electronic device detects the access of the external antenna. Background Art

[0002] For example, in order for an electronic device to acquire a wireless signal with better signal strength / quality, multiple antennas may be configured in the electronic device.

[0003] However, due to the location of the antenna on the electronic device, environmental parameters, or circuit configuration, the signal strength and quality received by each antenna are different, and the electronic device needs to select the corresponding wireless signal according to the current situation.

[0004] Furthermore, when the external antenna is connected (that is, when a wireless signal corresponding to the external antenna is received), the electronic device needs to identify the wireless signal and then enable the corresponding external antenna to receive the wireless signal corresponding to the type of wireless signal.

[0005] However, the identification of wireless signals is usually complicated and slow, and there is currently a lack of a technical process / architecture for an external antenna that can quickly identify and switch to a specific type of wireless signal. Summary of the invention

[0006] In view of this, the present invention provides an electronic device and an external antenna switching method, wherein the external antenna switching method is applicable to the electronic device. In the external antenna switching method provided by the present invention, the electronic device can detect the enabling signal of the external antenna group by means of a detection module, and when the detection module detects the enabling signal, the switching module can enable the corresponding external antenna according to the power supply circuit. In this way, the electronic device of the present invention can quickly identify the type of wireless signal when the external antenna is connected, and switch the antenna to an external antenna corresponding to the wireless signal for receiving a specific type of wireless signal.

[0007] The external antenna switching method provided by the present invention is applicable to an electronic device, which includes an external antenna group, a detection module, and a switching module. The external antenna group includes multiple external antennas and multiple power circuits. The external antenna switching method includes: the detection module detects an enabling signal of the external antenna group; when the detection module detects the enabling signal, the switching module enables the multiple external antennas according to the multiple power circuits.

[0008] In one embodiment of the present invention, in the above-mentioned external antenna switching method, the external antenna includes: an RF external antenna for receiving RF signals; and a satellite navigation external antenna for receiving a first satellite signal; wherein the power supply circuit includes: an RF power supply circuit, connected to the RF external antenna, for providing the RF external antenna with an RF working voltage; wherein the external antenna switching method includes: the switching module enables the satellite navigation external antenna according to the RF working voltage.

[0009] In one embodiment of the present invention, in the above-mentioned external antenna switching method, the electronic device includes a filtering module, and the external antenna switching method includes: the filtering module splits the first satellite signal into a second satellite signal including at least one of the L1 frequency band, the L2 frequency band, and the L5 frequency band.

[0010] In one embodiment of the present invention, in the above-mentioned external antenna switching method, the external antenna includes: a wireless local area network external antenna for receiving a wireless local area network signal; wherein the power supply circuit includes: a wireless local area network power supply circuit for providing the wireless local area network external antenna with a wireless local area network working voltage; wherein the external antenna switching method includes: a switching module enabling the wireless local area network external antenna according to the RF working voltage and the wireless local area network working voltage.

[0011] In one embodiment of the present invention, in the above-mentioned external antenna switching method, the external antenna includes: a wireless wide area network external antenna for receiving a wireless wide area network signal; wherein the external antenna switching method includes: a switching module enabling the wireless wide area network external antenna according to a radio frequency operating voltage, a wireless local area network operating voltage, and a wireless wide area network signal.

[0012] The electronic device provided by the present invention includes: an external antenna group, including multiple external antennas and multiple power circuits; a detection module, connected to the external antenna group, for detecting an enabling signal of the external antenna group; a switching module, connected to the external antenna group, for enabling the multiple external antennas; and a processing module, connected to the detection module and the switching module, for executing an external antenna switching method; wherein the external antenna switching method includes: the detection module detects the enabling signal of the external antenna group; when the detection module detects the enabling signal, the switching module enables the multiple external antennas according to the multiple power circuits.

[0013] In one embodiment of the present invention, in the above-mentioned electronic device, the external antenna includes: an RF external antenna for receiving RF signals; and a satellite navigation external antenna for receiving a first satellite signal; wherein the power supply circuit includes: an RF power supply circuit connected to the RF external antenna for providing the RF external antenna with an RF working voltage; wherein the external antenna switching method includes: a switching module enabling the satellite navigation external antenna according to the RF working voltage.

[0014] In one embodiment of the present invention, the above-mentioned electronic device further includes a filtering module, which is connected to the satellite navigation external antenna; wherein the external antenna switching method includes: the filtering module splits the first satellite signal into a second satellite signal including at least one of the L1 frequency band, the L2 frequency band, and the L5 frequency band.

[0015] In one embodiment of the present invention, in the above-mentioned electronic device, the external antenna includes: a wireless local area network external antenna for receiving a wireless local area network signal; wherein the power supply circuit includes: a wireless local area network power supply circuit for providing the wireless local area network external antenna with a wireless local area network operating voltage; wherein the external antenna switching method includes: a switching module enabling the wireless local area network external antenna according to the RF operating voltage and the wireless local area network operating voltage.

[0016] In one embodiment of the present invention, in the above-mentioned electronic device, the external antenna includes: a wireless wide area network external antenna for receiving a wireless wide area network signal; wherein the external antenna switching method includes: a switching module enabling the wireless wide area network external antenna according to a radio frequency operating voltage, a wireless local area network operating voltage, and a wireless wide area network signal.

[0017] In summary, according to the external antenna switching method provided by the present invention, the electronic device can detect the enabling signal of the external antenna group through the detection module, and when the detection module detects the enabling signal, the switching module can enable the corresponding external antenna according to the power circuit. In this way, when the external antenna is connected, the electronic device of the present invention can quickly identify the type of wireless signal through the external antenna switching method provided by the present invention, and switch the antenna to the external antenna corresponding to the wireless signal.

[0018] The above description is only an overview of the technical solution of the present invention. In order to more clearly understand the technical means of the present invention, it can be implemented in accordance with the contents of the specification. In order to make the above and other purposes, features and advantages of the present invention more obvious and easy to understand, the following specifically cites a preferred embodiment and describes it in detail with the accompanying drawings as follows. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 A block diagram of an electronic device provided by an embodiment of the present invention; and

[0020] Figure 2 A flowchart of the steps of an external antenna switching method provided by an embodiment of the present invention. DETAILED DESCRIPTION

[0021] Please refer to Figure 1 , Figure 1 This is a block diagram of an electronic device ED provided in accordance with an embodiment of the present invention. The hardware architecture of the present invention will be described below.

[0022] In this embodiment, the electronic device ED of the present invention includes: a processing module PM, a switching module SWM, a detection module DM, an external antenna group EAS, an internal antenna group IAS, and a wireless signal feed end WSFE. The external antenna group EAS includes a plurality of external antennas, a plurality of power supply circuits corresponding to the external antennas (not shown), and a filter module FM, wherein the external antennas include: a radio frequency external antenna RFEA, a satellite navigation external antenna GNSSEA; the radio frequency external antenna RFEA is used to receive radio frequency signals and includes: a wireless local area network external antenna WLANEA, and a wireless wide area network external antenna WWANEA.

[0023] Among them, the external antennas can each have a power supply circuit. For example, the radio frequency external antenna RFEA can have a corresponding radio frequency power supply circuit, which is connected to the radio frequency external antenna RFEA and provides the radio frequency external antenna RFEA with a radio frequency working voltage. For example, the wireless local area network external antenna WLANEA can receive a wireless local area network signal, and can have a corresponding wireless local area network power supply circuit, which is connected to the wireless local area network external antenna WLANEA and provides the wireless local area network external antenna WLANEA with a wireless local area network working voltage. For example, the wireless wide area network external antenna WWANEA can receive a wireless wide area network signal, and can have a corresponding wireless wide area network power supply circuit, which is connected to the wireless wide area network external antenna WLANEA and provides the wireless wide area network external antenna WWANEA with a wireless wide area network working voltage. For example, the satellite navigation external antenna GNSSEA can receive a first satellite signal, and can have a corresponding satellite navigation power supply circuit, which is connected to the satellite navigation external antenna GNSSEA and provides the satellite navigation external antenna GNSSEA with a satellite navigation working voltage.

[0024] Among them, the processing module PM is coupled to the internal antenna group IAS, the external antenna group EAS, and multiple power supply circuits of the external antenna group EAS (not shown in the figure), and is connected to the switching module SWM and the detection module DM; the external antenna group EAS is connected to the detection module DM; the switching module SWM is connected to the wireless local area network external antenna WLANEA, the wireless wide area network external antenna WWANEA, and the satellite navigation external antenna GNSSEA; the filtering module FM is connected to the satellite navigation external antenna GNSSEA and the wireless signal feeding end WSFE; the wireless signal feeding end WSFE is connected to the internal antenna group IAS, the wireless local area network external antenna WLANEA, the wireless wide area network external antenna WWANEA, and the filtering module FM.

[0025] In this embodiment, for example, the electronic device ED of the present invention can receive wireless signals by means of the internal antenna group IAS before connecting to the external antenna, and can execute the external antenna switching method by means of the processing module PU, so that the detection module DM detects the enabling signal of the external antenna group EAS. When the detection module DM detects the enabling signal (that is, when the external antenna is connected, the connection of the external antenna can be manually switched or automatically switched after software / firmware judgment), the processing module PU can transmit a switching signal to the switching module SWM, so that the switching module SWM can enable the corresponding external antenna according to the working voltage provided by the multiple power supply circuits of the external antenna group EAS. In this way, when the external antenna is connected, the electronic device ED of the present invention can use the external antenna switching method provided by the present invention to enable the electronic device ED to quickly identify the type of wireless signal and switch the antenna to the external antenna corresponding to the wireless signal.

[0026] In this embodiment, the internal antenna group IAS and the external antenna group EAS of the present invention may include multiple antennas, and the multiple antennas may receive wireless signals of different frequency bands, and feed the wireless signals of the multiple different frequency bands to the wireless signal feed end WSFE, so that the electronic device ED can selectively feed the wireless signals of different frequency bands to the wireless signal feed end WSFE via the switching module SWM (for example, the wireless signal to be fed may be manually selected, or the wireless signal to be fed may be automatically selected after software / firmware judgment). For example, the satellite navigation external antenna GNSSEA may be used to receive a first satellite signal including a satellite signal frequency band (for example, satellite signals including L1 frequency band, L2 frequency band, and / or L5 frequency band), the radio frequency external antenna RFEA may be used to receive a radio frequency signal including a radio frequency band, and the wireless local area network external antenna WLANEA may be used to receive a wireless local area network signal, and the wireless wide area network external antenna WWANEA may be used to receive a wireless wide area network signal.

[0027] For example, regarding the configuration positions of the internal antenna group IAS and the external antenna group EAS, the internal antenna group IAS can be configured inside the electronic device ED, and the external antenna group EAS can be configured at a position in the electronic device ED that is closer to the outer surface than the internal antenna group IAS, or configured on the surface of the electronic device ED. In one embodiment, the external antenna group EAS is an external antenna group that is detachably connected to the electronic device ED.

[0028] In this embodiment, the detection module DM of the present invention can detect the enable signal of the external antenna group EAS. For example, when the external antenna group EAS is connected (enabled), part of the circuit in the external antenna group EAS can generate a voltage change with the connection of the external antenna group EAS. The voltage change can be an instantaneous pulse signal or a change in a steady-state voltage logic level, wherein the working voltage provided by the power supply circuit can be one of the embodiments of the enable signal. When the detection module DM detects the enable signal, the processing module PM can transmit a switching signal to the switching module SWM according to the enable signal, and enable the switching module SWM to enable the corresponding external antenna according to the power supply circuit of the external antenna group EAS.

[0029] In this embodiment, the filter module FM of the present invention is connected to the satellite navigation external antenna GNSSEA, and performs filtering processing to split the first satellite signal received by the satellite navigation external antenna GNSSEA into a second satellite signal including at least one of the L1 frequency band, the L2 frequency band, and the L5 frequency band, and then transmits the second satellite signal to the wireless signal feeding end WSFE. In this way, since the filter module FM of the present invention can split the signal after the satellite navigation external antenna GNSSEA receives the satellite signal including multiple frequency bands, the filter module FM can make the feeding of the satellite signal more selective and achieve the technical effect of reducing the number of antennas (the satellite navigation external antenna GNSSEA can receive satellite signals including multiple frequency bands, so there is no need to configure multiple antennas corresponding to the multiple frequency bands).

[0030] Next, please refer to Figure 2 , Figure 2 This is a flow chart of the steps of an external antenna switching method provided by an embodiment of the present invention. The method / process of the present invention is described below.

[0031] In this embodiment, the processing module PM of the electronic device ED may execute Figure 2 An external antenna switching method, wherein the steps of the external antenna switching method include the following:

[0032] Step S100: the external antenna is docked, the detection module DM detects the enabling signal of the external antenna group EAS, and enters step S101; for example, the default state of the electronic device ED can be to receive wireless signals with the internal antenna group IAS, the detection module DM can detect the enabling signal of the external antenna group EAS, when the external antenna is docked, the detection module DM can detect the enabling signal of the external antenna group EAS (such as voltage change), and start the process to determine the type of wireless signal connected.

[0033] Step S101: Determine whether the RF power supply circuit provides RF working voltage. If it is determined to be yes, proceed to step S301; if it is determined to be no, proceed to step S201. The processing unit PM can determine whether the RF power supply circuit provides RF working voltage, and use the RF working voltage as a reference to preliminarily determine the type of the connected wireless signal. If it is determined to be no, the connected wireless signal is determined to be a satellite signal. If it is determined to be yes, proceed to step S301 to further determine the type of the connected wireless signal.

[0034] Step S201: The filtering module FM splits the first satellite signal into a second satellite signal including at least one of the L1 frequency band, the L2 frequency band, and the L5 frequency band, and enters step S203; after determining that the connected wireless signal is a satellite signal, the filtering module FM can filter the first satellite signal to split the first satellite signal into a second satellite signal including at least one of the L1 frequency band, the L2 frequency band, and the L5 frequency band.

[0035] Step S203: The switching module SWM enables the satellite navigation external antenna GNSSEA, and re-enters step S100 when the next external antenna connection is detected; the processing unit PM can transmit a switching signal to the switching module SWM, and enable the satellite navigation external antenna GNSSEA according to the RF working voltage (that is, after a preliminary judgment on whether the RF power supply circuit provides the RF working voltage, enable / switch to the satellite navigation external antenna GNSSEA).

[0036] Step S301: Determine whether the wireless local area network power circuit provides the wireless local area network operating voltage; when the processing unit PM determines that the RF power circuit provides the RF operating voltage, the processing unit PM can further determine whether the wireless local area network power circuit provides the wireless local area network operating voltage, and when the judgment result is yes, enter step S303, and when the judgment result is no, enter step S401.

[0037] Step S303: The switching module SWM enables the wireless local area network external antenna WLANEA, and re-enters step S100 when the next external antenna access is detected; after determining whether the RF operating voltage and the wireless local area network operating voltage are provided, the processing unit PM can transmit a switching signal to the switching module SWM, and the switching module SWM enables the wireless local area network external antenna WLANEA (enables / switches to the wireless local area network external antenna WLANEA) according to the RF operating voltage and the wireless local area network operating voltage.

[0038] Step S401: Determine whether a wireless wide area network signal is received. If the determination result is no, return to step S101 to re-determine whether the RF power supply circuit provides a RF working voltage. If the determination result is no, proceed to step S403.

[0039] Step S403: The switching module SWM enables the wireless wide area network external antenna WWANEA, and re-enters step S100 when the next external antenna access is detected; after determining whether the RF operating voltage and the wireless local area network operating voltage are provided, and determining whether the wireless wide area network signal is received, the processing unit PM can transmit a switching signal to the switching module SWM, that is, the switching module SWM enables the wireless wide area network external antenna WWANEA (enables / switches to the wireless wide area network external antenna WWANEA) according to the RF operating voltage, the wireless local area network operating voltage, and the wireless wide area network signal.

[0040] In summary, according to the external antenna switching method provided by the present invention, the electronic device can detect the enabling signal of the external antenna group through the detection module, and when the detection module detects the enabling signal, the switching module can enable the corresponding external antenna according to the power circuit of the external antenna group. In this way, when the external antenna is connected, the electronic device of the present invention can quickly identify the type of wireless signal through the external antenna switching method provided by the present invention, and switch the antenna to the external antenna corresponding to the type of wireless signal.

[0041] The above description is only a preferred embodiment of the present invention and does not limit the present invention in any form. Although the present invention has been disclosed as a preferred embodiment as above, it is not used to limit the present invention. Any technician familiar with this profession can make some changes or modifications to equivalent embodiments of equivalent changes by using the methods and technical contents disclosed above without departing from the scope of the technical solution of the present invention. However, any simple modification, equivalent change and modification made to the above embodiments according to the technical essence of the present invention without departing from the content of the technical solution of the present invention still fall within the scope of the technical solution of the present invention.

Claims

1. An external antenna switching method, applicable to an electronic device, characterized in that: The electronic device includes an external antenna group, a detection module, and a switching module. The external antenna group includes multiple external antennas and multiple power supply circuits. The external antenna switching method includes: The detection module detects a consistent power signal of the external antenna group; When the detection module detects the enabling signal, the switching module enables the multiple external antennas according to the multiple power circuits.

2. The external antenna switching method according to claim 1, characterized in that: The plurality of external antennas include: an external radio frequency antenna for receiving a radio frequency signal; and a satellite navigation external antenna for receiving a first satellite signal; Wherein, the multiple power supply circuits include: a radio frequency power supply circuit, connected to the radio frequency external antenna, for providing the radio frequency external antenna with a radio frequency operating voltage; Wherein, the external antenna switching method includes: The switching module enables the satellite navigation external antenna according to the radio frequency working voltage.

3. The external antenna switching method according to claim 2, characterized in that: The electronic device includes a filter module, and the external antenna switching method includes: The filtering module splits the first satellite signal into a second satellite signal including at least one of an L1 frequency band, an L2 frequency band, and an L5 frequency band.

4. The external antenna switching method according to claim 2, characterized in that: The plurality of external antennas include: A wireless local area network external antenna for receiving a wireless local area network signal; Wherein, the multiple power supply circuits include: A wireless local area network power supply circuit, used to provide the wireless local area network external antenna with a wireless local area network operating voltage; Wherein, the external antenna switching method includes: The switching module enables the wireless local area network external antenna according to the radio frequency working voltage and the wireless local area network working voltage.

5. The external antenna switching method according to claim 4, characterized in that: The plurality of external antennas include: A wireless wide area network external antenna for receiving a wireless wide area network signal; Wherein, the external antenna switching method includes: The switching module enables the wireless wide area network external antenna according to the radio frequency working voltage, the wireless local area network working voltage, and the wireless wide area network signal.

6. An electronic device, characterized in that: The electronic device comprises: an external antenna group, comprising a plurality of external antennas and a plurality of power supply circuits; a detection module, connected to the external antenna group, for detecting an energy signal from the external antenna group; a switching module connected to the external antenna group to enable the plurality of external antennas; and a processing module, connected to the detection module and the switching module, for executing an external antenna switching method; Wherein, the external antenna switching method includes: The detection module detects a consistent power signal of the external antenna group; When the detection module detects the enabling signal, the switching module enables the multiple external antennas according to the multiple power circuits.

7. The electronic device according to claim 6, wherein: The plurality of external antennas include: an external radio frequency antenna for receiving a radio frequency signal; and a satellite navigation external antenna for receiving a first satellite signal; Wherein, the multiple power supply circuits include: a radio frequency power supply circuit, connected to the radio frequency external antenna, for providing the radio frequency external antenna with a radio frequency operating voltage; Wherein, the external antenna switching method includes: The switching module enables the satellite navigation external antenna according to the radio frequency working voltage.

8. The electronic device as claimed in claim 7, characterized in that: The electronic device further comprises a filter module, the filter module is connected to the satellite navigation external antenna; Wherein, the external antenna switching method includes: The filtering module splits the first satellite signal into a second satellite signal including at least one of an L1 frequency band, an L2 frequency band, and an L5 frequency band.

9. The electronic device as claimed in claim 7, characterized in that: The plurality of external antennas include: A wireless local area network external antenna for receiving a wireless local area network signal; Wherein, the multiple power supply circuits include: A wireless local area network power supply circuit, used to provide the wireless local area network external antenna with a wireless local area network operating voltage; Wherein, the external antenna switching method includes: The switching module enables the wireless local area network external antenna according to the radio frequency working voltage and the wireless local area network working voltage.

10. The electronic device according to claim 9, wherein: The plurality of external antennas include: A wireless wide area network external antenna for receiving a wireless wide area network signal; Wherein, the external antenna switching method includes: The switching module enables the wireless wide area network external antenna according to the radio frequency working voltage, the wireless local area network working voltage, and the wireless wide area network signal.

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