TWI488519B - A wireless communication device - Google Patents

Description

Wireless communication device

The present invention relates to a device, and more particularly to a wireless communication device.

The existing wireless communication device is applied to an electronic product (such as a notebook computer) and a base station (not shown) for wireless communication, and the global state of the wireless communication device can be controlled to operate normally. a state or a sleep state, and the wireless communication device has a wireless module (not shown), the network state of the wireless module can be switched between a connection or a disconnection, and components of the wireless module The device state contains multiple modes depending on the degree of power saving.

However, when the global state of the existing wireless communication device is in the sleep state, the following disadvantages are: the component state of the wireless module cannot be controlled, and when the network state of the wireless module changes, the wireless communication device cannot follow the The network status adjusts the component status of the wireless module, which causes great inconvenience to the user, and also greatly limits the use of the wireless communication device in the sleep state. If the wireless module wireless communication at this time If the function is turned off, the wireless communication function of the wireless module cannot be re-opened, and the power state of the wireless module cannot be changed.

Accordingly, a first object of the present invention is to provide a wireless communication device that solves the above problems.

The wireless communication device is adapted to perform wireless communication with a base station. The global state of the wireless communication device can be controlled by a global state command to operate in a normal state or a sleep state, and the wireless communication device includes: a wireless module for wirelessly communicating with the base station, and To output a network status signal, and the component status of the wireless module is controlled to be set to a normal state or a power saving state, the network status signal is used to indicate a network disconnection or a network connection And a control module receiving the global status command and electrically connecting to the wireless module to receive the network status signal, and controlling a component status of the wireless module according to a determination result, wherein the determination result is related to The global status command and the network status signal.

A second object of the present invention is to provide another wireless communication device.

The wireless communication device is adapted to be electrically connected to an external power source for generating an external power of DC. The wireless communication device includes: a power detecting unit configured to detect whether the wireless communication device receives the External power, and generating a detection signal according to the detection result; a processing module for generating a mode signal, the mode signal corresponding to a global state of the wireless communication device; a control module electrically connected to the power detection The measuring unit receives the detection signal and is electrically connected to the processing module to receive the mode signal for generating a function signal according to the detection signal and the mode signal; and a wireless module whose component state can be set In a normal state or a power saving state, and electrically connected to the control module to receive the function signal, and used The component state of the wireless module is determined according to the function signal.

The above and other technical contents, features and advantages of the present invention will be apparent from the following detailed description of the preferred embodiments of the invention.

<First Preferred Embodiment>

As shown in FIG. 1, a first preferred embodiment of the wireless communication device 1 of the present invention is applied to an electronic product (such as a notebook computer) for wireless communication with a base station 10, and can select whether to receive a DC. External power, and receiving a global state command, the global state of the wireless communication device 1 can be controlled by the global state command to operate in a normal state or a sleep state, wherein the normal state includes a general mode (S0) The sleep state includes four modes S1 to S4 according to the degree of power saving, and the wireless communication device 1 includes: a power supply unit PS, a light emitting diode LED, a wireless module WM, and a control Module CM.

The power supply unit PS has a built-in battery (not shown) for generating a power output PO and can be used to receive the external power. In the embodiment, the power output PO includes a high-level voltage of 3.3V. And a low level voltage of 1.5V, but is not limited to this.

The LED has an anode and a cathode that receive a high-level voltage of 3.3V.

The wireless module WM is configured to perform wireless communication with the base station 10, and output a network status signal, and the component status of the wireless module WM The (device state) is controlled to be set to a normal state or a power saving state, the normal state including a general power mode (D0), the power saving state including the first power saving mode and the first according to the degree of power saving a second power saving mode, wherein the power saving mode of the second power saving mode is higher than the power saving mode of the first power saving mode, and the wireless module WM further receives a global state command and has a pin PIN electrically connected to the cathode of the LED, when the global state command indicates a normal state, the voltage level of the pin PIN output of the wireless module WM will cause the LED to be LED Turning on and emitting light, and when the global state command indicates the sleep state, the pin PIN of the wireless module WM outputs the network status signal, where the network status signal is used to indicate a network disconnection or a network The connection to the network includes a connection with data transmission and an idle with no data transmission.

The control module CM detects whether the wireless communication device 1 receives the external power, receives the global status command, and is electrically connected to the wireless module WM to receive the network status signal, and controls the network according to a determination result. The component status of the wireless module WM, the result of the determination is related to the global status command, the network status signal, and whether the external power is received.

When the judgment result is: 1. The wireless communication device 1 does not receive the external power and 2. The global state command indicates the sleep state, and 3. The network state signal indicates that the network is disconnected, then the control mode The group CM controls the component state of the wireless module WM to be the second-order power saving mode of the power saving state.

When the judgment result is: 1. The wireless communication device 1 does not receive the external power and 2. The global state command indicates the sleep state, and 3. The network The status signal indicates that the network connection is a connection with data transmission, and the control module CM controls the component status of the wireless module WM to be in a normal state.

When the judgment result is: 1. The wireless communication device 1 does not receive the external power and 2. The global status command indicates the sleep state, and 3. The network status signal indicates that the network connection is no data transmission. If the device is idle, the control module CM controls the component state of the wireless module WM to be the first power saving mode of the power saving state. However, the result of the determination is not limited to the above three restrictions, and in another embodiment, the external power may be received regardless of whether or not the external power is received.

The control module CM further includes a first switch S1, a second switch S2, and an embedded controller EC.

The first switch S1 has a first end receiving the high-level voltage of 3.3V, a second end electrically connected to the wireless module WM, and a control end receiving a first control signal P1, and according to the The first control signal P1 is switched between conducting and non-conducting.

The second switch S2 has a first end receiving the low level voltage of 1.5V, a second end electrically connected to the wireless module WM, and a control end receiving a second control signal P2, and according to the The second control signal P2 switches between conduction and non-conduction.

The embedded controller EC receives the global status command and is electrically connected to the pin PIN of the wireless module WM to receive the network status signal, and is electrically connected to the power supply unit PS to receive the power output PO and detect Detecting whether the power supply unit PS receives the external power, electrically connected to the control ends of the first and second switches S1, S2, and the embedded controller EC according to the network status signal, the global state command and the power Supply unit PS The external power is received to correspondingly output the first control signal P1 and the second control signal P2 to adjust the magnitude of the operating voltage received by the wireless module WM.

When the global state command indicates the sleep state, and the network state signal indicates that the network is disconnected, and the embedded controller EC detects that the power supply unit PS receives the external power, the embedded The controller EC uses the first and second control signals respectively to turn on the first switch S1 to make the second switch S2 non-conducting, and supply the high-level voltage 3.3V as the operating voltage to the wireless module. WM.

When the global state command indicates the sleep state, and the network state signal indicates that the network is disconnected, and the embedded controller EC detects that the power supply unit PS does not receive the external power, the embedded The controller EC uses the first and second control signals respectively to make the first switch S1 non-conductive and turn on the second switch S2, and the low-level voltage 1.5V is used as the working voltage to supply the wireless module. WM.

As shown in FIG. 2 , a modification of the embodiment, and the power supply unit PS has a battery 2 , the difference from the above embodiment is that the embedded controller EC presets a critical power value, and further detects the Remaining amount of the battery 2 to obtain a residual power value, and comparing whether the residual power value is less than the critical power value, when the global state command indicates the sleep state, and the network status signal indicates the network connection, The embedded controller EC detects that the power supply unit PS does not receive the external power, and if the residual power value is less than the critical power value, the embedded controller EC utilizes the first and second control signals respectively. To make the first switch The second switch S2 is turned on by the S1 non-conducting, and the low-level voltage 1.5V is supplied to the wireless module WM as the operating voltage, so that the wireless module WM reduces the operating frequency to reduce power consumption.

When the global state command indicates the sleep state, and the network status signal indicates the network connection, and the embedded controller EC detects that the power supply unit PS does not receive the external power, and if the residual power When the value is greater than the threshold power value, the embedded controller EC uses the first and second control signals respectively to turn on the first switch S1 and disable the second switch S2 to the high level voltage. 3.3V is supplied to the wireless module WM as the operating voltage.

<Second embodiment>

As shown in FIG. 3, a second preferred embodiment of the wireless communication device 1 of the present invention is applied to an electronic product (such as a notebook computer) for wireless communication with a base station 10, and is adapted to be electrically connected to an external device. The external power source 3 is used to generate a direct current external power. In the embodiment, the external power source 3 is an AC/DC converter 30, and the AC/DC converter 30 is configured to receive an AC power. The wireless communication device 1 includes: a power detection unit DET, a control module CM, a power supply unit PS, a processing module PM, and a wireless module WM.

The power detecting unit DET is configured to detect whether the wireless communication device 1 receives the external power, and generate a detection signal according to the detection result. Further, when the global state of the wireless communication device 1 is in the power saving state The power detecting unit DET is configured to detect whether the power supply unit PS receives the external power from the external power source, and when the power detecting unit When the DET detects that the power supply unit PS receives the external power, the detection signal is generated.

The power supply unit PS includes a battery (not shown) for generating a power output PO, and is electrically connected to the external power source 3 to receive the external power. In this embodiment, the power output PO includes A high level voltage is 3.3V and a low level voltage is 1.5V, but is not limited thereto.

The processing module PM is configured to generate a mode signal corresponding to the global state of the wireless communication device 1 and electrically connected to the power supply unit PS to receive the power output PO, the global state including a normal state and In a power-saving state, the processing module PM can automatically detect that the global state of the wireless communication device 1 is the normal state or the power-saving state to generate the mode signal, and the processing module PM can also receive one from a use. a power status command, and according to the power status command, controlling a global state of the wireless communication device 1 to operate in the normal state or the power saving state, and issuing the mode signal, the normal state including a general power State (S0), most power-consuming sleep state (S1), deeper sleep state (S2) than S1, the power-saving state includes a standby state (S3), a sleep state (S4), and a shutdown state (S5) ). In an embodiment, the normal state includes only S0, and the power saving state includes S1 to S5.

The control module CM is electrically connected to the power detecting unit DET to receive the detection signal, and is electrically connected to the processing module PM to receive the mode signal for generating a function according to the detection signal and the mode signal. signal.

The component state of the wireless module WM can be set in a normal state or a power-saving state, and is electrically connected to the control module CM to receive the function signal. And used to determine the component state of the wireless module WM according to the function signal. In an embodiment, the wireless module WM can enable or disable the wireless communication function of the wireless module WM according to the control of the function signal.

For example, when the mode signal indicates that the global state is a power saving state, and the detection signal indicates that the wireless communication device 1 receives the external power, the component state of the wireless module WM is set according to the function signal. normal status. In another example, when the mode signal indicates that the global state is a power saving state, and the detection signal indicates that the wireless communication device 1 does not receive the external power, the component state of the wireless module WM is according to the function signal. Set in this power saving state.

In an embodiment, the normal state includes a search state and a connection state, and the power save state includes a closed state. However, the present invention is not limited thereto. In another embodiment, the normal state includes a wired state, the power saving state includes a closed state, and the wired state may be included in a normal state, a power saving state, or both. When the detection signal indicates that the wireless communication device 1 receives the external power, if the mode signal indicates that the global state is in a normal power state (S0), a most power-consuming sleep state (S1), and a sleep deeper than S1. In the state (S2), the standby state (S3), or the sleep state (S4), the component state of the wireless module WM is set in the connection state of the normal state according to the function signal, and if the mode signal indicates that the global state is When the power is off (S5), the component state of the wireless module WM is set in the normal state search state according to the function signal.

When the detection signal indicates that the wireless communication device 1 does not receive the external power, if the mode signal indicates that the global state is in the normal power state S0, the most power-consuming sleep state S1, and the sleep state S2 deeper than S1, then The wireless module WM The component state is set in the normal state connection state according to the function signal. If the mode signal indicates that the global state is in the standby state S3 or the sleep state S4, the component state of the wireless module WM is based on the function signal. The search state is set in the normal state (the other variant is that if the mode signal indicates that the global state is in the normal power state S0, the most power-consuming sleep state S1, the sleep state S2 deeper than S1, or the standby state S3, then The component status of the wireless module is set in the normal state connection state according to the function signal. If the mode signal indicates that the global state is in the sleep state S4, the wireless module operates in the normal state search state. If the mode signal indicates that the global state is in the shutdown state S5, the component state of the wireless module WM is set in the power-off state in accordance with the function signal.

Further, when the component state of the wireless module WM is in the search state, all the base stations that can be connected in the current environment can be searched, so that even if the wireless communication device 1 is turned off or In the dormant state, when the wireless communication device 1 is restarted, the time for detecting the base station 10 can be omitted and directly connected, thereby speeding up the connection of the wireless communication device to the network. Therefore, when the global state of the wireless communication device 1 is in a sleep state, messages such as push mail can still be received, and the flexibility of using the network is increased.

The control module CM is electrically connected to the power supply unit PS to receive the power output PO, and outputs an operating voltage related to the power output to the wireless module WM. When the mode signal indicates the power saving state and the power supply unit PS receives the external power, the operating voltage output by the control module CM is a high level voltage, and the function signal output by the control module CM Being in a consistent level enables the wireless module to enable its wireless communication function.

When the mode signal indicates the power saving state and the power supply unit PS is not electrically connected to the external power source 3, the operating voltage output by the control module CM is a low level voltage, and the control module CM outputs The function signal is at a level that enables the wireless module WM to perform its wireless communication function.

When the wireless communication device 1 is operated in the power saving state, the control module generates the function signal and the work according to the mode signal from the processing module PM and the detection signal from the power detecting unit DET. The voltage, and the control module CM includes a first switch S1, a second switch S2, and an embedded controller EC.

The first switch S1 has a first end electrically receiving the high-level voltage of 3.3V, a second end electrically connected to the wireless module WM, and a control end receiving a first control signal P1, and according to The first control signal P1 is switched between conducting and non-conducting.

The second switch S2 has a first end electrically receiving the low level voltage of 1.5V, a second end electrically connected to the wireless module WM, and a control end receiving a second control signal P2, and according to The second control signal P2 is switched between conducting and non-conducting.

The embedded controller EC is electrically connected to the power supply unit PS to receive the power output PO, is electrically connected to the power detection unit DET to receive the detection signal, and is electrically connected to the processing module PM to receive the mode signal. And electrically connected to the control ends of the first and second switches S1 and S2, and the function signal, the first control signal P1, and the second control signal P2 are sent according to the detection signal and the mode signal. When the wireless communication device 1 is in the power saving state, and the power detecting unit DET detects that the power supply unit PS has Receiving the external power, the embedded controller EC respectively uses the first and second control signals to turn on the first switch S1 to disable the second switch S2, and use the high-level voltage 3.3V as the high-level voltage The operating voltage is supplied to the wireless module WM. When the wireless communication device 1 is in the power saving state, and the power detecting unit DET does not detect that the power supply unit PS receives the external power, the embedded controller EC utilizes the first and second controls respectively. The signal is such that the first switch S1 is non-conducting to turn on the second switch S2, and the low-level voltage 1.5V is supplied to the wireless module WM as the operating voltage.

When the wireless communication device 1 is operated in the power saving state, the control module CM performs a control method. As shown in FIG. 3, the control method includes the following steps: Step 22: The control module CM is configured according to the detection signal It is determined whether the external power is available to determine whether to change the power state of the wireless module WM in the power saving state. If the external power is not available, the process proceeds to step 23, and if the external power is present, the process proceeds to step 24.

Step 23: The control module CM adjusts the power quota of the power output PO to the wireless module WM, so that the wireless module WM is in a maximum power saving state, and the step 23 includes the following substeps: Step 231: The embedded controller EC sets the level of the function signal to the disable level to enable the wireless communication function of the wireless module WM to be in a closed state.

Sub-step 232: the embedded controller EC utilizes the first and the first The second control signals P1, P2 are such that the first switch S1 is non-conducting to turn on the second switch S2, leaving only the low level voltage 1.5V as the operating voltage required by the wireless module WM to save power.

Step 24: The control module CO increases the power quota of the power output PO to the wireless module WM, and the step 24 includes the following sub-steps: sub-step 241: the embedded controller EC determines the level of the function signal Setting the enable level to enable the wireless communication function of the wireless module WM to be in an open state. In this embodiment, the network function signal includes a first wireless control command and a second wireless Control commands are used to control Wi-Fi and Bluetooth, respectively, but are not limited to this.

Sub-step 242: the embedded controller EC uses the first and second control signals P1 and P2 respectively to make the first switch S1 be turned on and the second switch S2 not to be turned on, with the high-level voltage 3.3V. The operating voltage required by the wireless module WM is such that the wireless module WM achieves maximum performance.

In summary, the above embodiment has the following advantages:

1. When the global state of the wireless communication device 1 is the sleep state, if the network state of the wireless module WM changes, the network state signal is reported to the control module CM by using the pin PIN of the wireless module WM. The control module CM can follow the state of the network to adjust the component state of the wireless module CM, and can effectively perform power management.

2. When the global state of the wireless communication device 1 is the sleep state, the control module CM determines whether to change the power state of the wireless module WM and the wireless of the wireless module WM according to whether the external power is present. through News function.

The above is only the preferred embodiment of the present invention, and the scope of the invention is not limited thereto, that is, the simple equivalent changes and modifications made by the scope of the invention and the description of the invention are All remain within the scope of the invention patent.

10‧‧‧Base Station

1‧‧‧Wireless communication device

PS‧‧‧Power supply unit

2‧‧‧Battery

WM‧‧‧Wireless Module

PIN‧‧‧ pin

PO‧‧‧electric output

3.3V‧‧‧ high level voltage

1.5V‧‧‧low level voltage

DET‧‧‧Power Detection Unit

CM‧‧‧ control module

EC‧‧‧ embedded controller

S1‧‧‧ first switch

S2‧‧‧ second switch

LED‧‧‧Light Emitting Diode

P1‧‧‧ first control signal

P2‧‧‧second control signal

3‧‧‧External power supply

30‧‧‧AC-DC converter

PM‧‧‧Processing Module

DET‧‧‧Power Detection Unit

22‧‧‧Steps to determine if there is external power

23‧‧‧Steps to reduce power output

231‧‧‧Substeps to turn off wireless communication

232‧‧‧ Sub-steps to save power

24‧‧‧Steps to increase power output

241‧‧‧Substeps to enable wireless communication

242‧‧‧ Substeps for maximum effectiveness

1 is a circuit diagram of a first preferred embodiment of the wireless communication device of the present invention; FIG. 2 is a circuit diagram of a variation of the first preferred embodiment; FIG. 3 is a second preferred embodiment of the wireless communication device of the present invention. A circuit diagram of an example; and FIG. 4 is a flow chart of a control method performed by the second preferred embodiment.

10‧‧‧Base Station

1‧‧‧Wireless communication device

PS‧‧‧Power supply unit

WM‧‧‧Wireless Module

PIN‧‧‧ pin

PO‧‧‧electric output

3.3V‧‧‧ high level voltage

1.5V‧‧‧low level voltage

CM‧‧‧ control module

EC‧‧‧ embedded controller

S1‧‧‧ first switch

S2‧‧‧ second switch

LED‧‧‧Light Emitting Diode

P1‧‧‧ first control signal

P2‧‧‧second control signal

Claims (23)

A wireless communication device is adapted to wirelessly communicate with a base station, and the global state of the wireless communication device can be controlled by a global state command to operate in a normal state or a sleep state, and the wireless communication device comprises: a wireless a module for wirelessly communicating with the base station, and outputting a network status signal, wherein the component status of the wireless module is controlled to be set to a normal state or a power saving state, the network status signal Is used to indicate a network disconnection or a network connection; and a control module receives the global status command and is electrically connected to the wireless module to receive the network status signal, and according to a determination result Controlling the component status of the wireless module, the determination result being related to the global status command and the network status signal. According to the wireless communication device of claim 1, when the judgment result is that the global state command indicates the sleep state, and the network state signal indicates that the network is disconnected, the control module controls The component state of the wireless module is a power saving state. According to the wireless communication device of claim 1, the control module further detects whether the wireless communication device receives an external power, and the determination result is more related to whether the wireless communication device receives the external power. The wireless communication device according to claim 3, further comprising: a power supply unit, a built-in battery, and used to generate a power The output is configured to receive the external power, and the power output includes a high level voltage and a low level voltage; and a light emitting diode having an anode and a cathode for receiving the high level voltage. According to the wireless communication device of claim 4, the wireless module further receives the global state command and has a pin electrically connected to the LED, when the global state command indicates a normal state. The voltage level of the pin output of the wireless module will cause the light emitting diode to be turned on to emit light, and when the global state command indicates the sleep state, the pin of the wireless module outputs the network state signal . According to the wireless communication device of claim 5, the control module includes: a first switch having a first end for receiving the high level voltage and a second end electrically connected to the wireless module And a control terminal receiving a first control signal, and switching between conducting and non-conducting according to the first control signal; a second switch having a first end receiving the low-level voltage and an electric Connected to the second end of the wireless module, and a control terminal that receives a second control signal, and switches between conduction and non-conduction according to the second control signal; and an embedded controller receives the global a status command, and is electrically connected to the pin of the wireless module to receive the network status signal, and is electrically connected to the power supply unit to receive the power output and detect whether the power supply unit receives the external power, and Connected to the first and second open a control terminal, and the embedded controller correspondingly outputs the first control signal according to the network status signal, the global status command, and whether the power supply unit receives the external power, and the second control signal Adjust the working voltage received by the wireless module. According to the wireless communication device of claim 6, the embedded controller presets a critical power value, and further detects the residual amount of the battery to obtain a residual power value, and compares whether the residual power value is smaller than The critical power value, when the global state command indicates the sleep state, and the network status signal indicates the network connection, and the embedded controller detects that the power supply unit does not receive the external power, and If the residual power value is less than the critical power value, the embedded controller respectively uses the first and second control signals to make the first switch non-conductive and turn the second switch to be on, the low level voltage Supply to the wireless module. According to the wireless communication device of claim 1, the power saving state includes a first power saving mode and a second power saving mode according to different power saving states, and the second power saving mode is saved. The degree of electricity is higher than the power saving state of the first power saving mode. According to the wireless communication device of claim 8, the network connection includes a data transmission connection and a data transmission idle: when the determination result is: the global status instruction indicates the sleep state And the network status signal indicates that the network connection is idle without data transmission, and the control module controls the first-order power-saving mode of the component state of the wireless module to be a power-saving state. According to the wireless communication device described in claim 9 of the patent application, when the whole The state command indicates the sleep state, and the network state signal indicates that the network connection is a connection with data transmission, and the control module controls the component state of the wireless module to be a normal state. A wireless communication device is adapted to be electrically connected to an external power source for generating an external power of a direct current, the wireless communication device comprising: a power detecting unit configured to detect whether the wireless communication device receives The external power generates a detection signal according to the detection result; a processing module is configured to generate a mode signal corresponding to a global state of the wireless communication device; and a control module electrically connected to the power The detecting unit receives the detecting signal and is electrically connected to the processing module to receive the mode signal for generating a function signal according to the detecting signal and the mode signal; and a wireless module, the component state thereof is The device is configured to be in a normal state or a power-saving state, and is electrically connected to the control module to receive the function signal, and is configured to determine a component state of the wireless module according to the function signal. According to the wireless communication device of claim 11, wherein the mode signal indicates that the global state is a power saving mode, and the detecting signal indicates that the wireless communication device receives the external power, the wireless module The component state is set to the normal state according to the function signal. According to the wireless communication device of claim 11, wherein the mode signal indicates that the global state is a power saving mode, and the detecting signal indicates that the wireless communication device does not receive the external power, the wireless mode The component status of the group is set to the power saving state according to the function signal. According to the wireless communication device of claim 11, wherein the mode signal indicates that the global state is a shutdown state, and the detection signal indicates that the wireless communication device receives the external power, components of the wireless module The state is set to a search state according to the function signal. According to the wireless communication device of claim 11, wherein the mode signal indicates that the global state is a standby state or a sleep state, and the detection signal indicates that the wireless communication device receives the external power, the wireless The component status of the module is set to a wired state according to the function signal. The wireless communication device of claim 11, further comprising: a power supply unit for generating a power output; wherein the power detecting unit provides the external power to the power supply unit according to the external power source, To generate the detection signal. The wireless communication device of claim 11, wherein the processing module is further configured to receive a power state command and generate the mode signal according to the power state command. According to the wireless communication device of claim 11, the global state further includes a normal mode, and the processing module automatically detects that the global state of the wireless communication device is the normal mode or a power saving mode to generate the wireless communication device. Mode signal. According to the wireless communication device of claim 11, the control module includes: a first switch having a high level for receiving the power output a first end of the voltage, a second end electrically connected to the wireless module, and a control end receiving a first control signal, and switching between conducting and non-conducting according to the first control signal; a second switch having a first end electrically receiving a low level voltage of the power output, a second end electrically connected to the wireless module, and a control end receiving a second control signal, and according to the a control signal is switched between conducting and non-conducting; a controller is electrically connected to the power supply unit to receive the power output, electrically connected to the power detecting unit to receive the detection signal, and electrically connected to the processing The module receives the mode signal, is electrically connected to the control ends of the first and second switches, and sends the function signal, the first control signal, and the second control signal according to the detection signal and the mode signal. According to the wireless communication device of claim 19, when the wireless communication device is in a power saving mode, and the power detecting unit detects that the power supply unit receives the external power, the controller separately The first and second control signals are used to turn on the first switch to make the second switch non-conductive, and the high-level voltage is supplied to the wireless module as an operating voltage. According to the wireless communication device of claim 20, when the wireless communication device is in the power saving mode, and the power detecting unit does not detect that the power supply unit receives the external power, the controller separately Using the first and second control signals to make the second switch non-conductive to turn on the second switch, and use the low-level voltage as the operating voltage Supply to the wireless module. The wireless communication device according to claim 21, wherein when the mode signal indicates that the global state is a sleep state, and the detection signal indicates that the wireless communication device receives the external power, components of the wireless module The state is set to a search state according to the function signal. According to the wireless communication device of claim 21, wherein the mode signal indicates that the global state is a shutdown state, and the detection signal indicates that the wireless communication device does not receive the external power, the wireless module The component status is set to an off state according to the function signal.