WO2013127116A1

WO2013127116A1 - Charging/discharging method of terminal and charging/discharging terminal

Info

Publication number: WO2013127116A1
Application number: PCT/CN2012/074000
Authority: WO
Inventors: 保善军
Original assignee: 中兴通讯股份有限公司
Priority date: 2012-03-01
Filing date: 2012-04-13
Publication date: 2013-09-06
Also published as: CN103296705A; CN103296705B

Abstract

Provided are a charging/discharging method of a terminal (201) and the charging/discharging terminal (201). The method comprises: detecting whether a radio signal of a specific frequency that satisfies a preset signal strength is received (S102); determining, according to the radio signal of a specific frequency that satisfies a preset signal strength and a preset identifier, a current working mode of a wireless charging/discharging unit, wherein the working mode is a receiving mode or a transmitting mode, and the identifier is used for distinguishing a device to be charged and a wireless charging device (S104); when the working mode is the receiving mode, implementing wireless charging to the wireless charging/discharging unit itself through a charging/discharging coil (45) connected to a receiving unit (41); and when the working mode is the transmitting mode, implementing wireless power supply to the device to be charged through the charging/discharging coil (45) connected to a transmitting unit (42)(S106). The method and the terminal solve the problem that the wireless charging device and the wireless power supply device each have a single function, and improve the flexibility of the wireless charging/discharging device in use.

Description

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to the field of communications, and in particular to a charging and discharging method of a terminal and a charging and discharging terminal. BACKGROUND OF THE INVENTION The battery power of a mobile terminal has always been an important factor restricting its performance. In the pursuit of lightweight and portable, the space for improving the terminal battery capacity is near saturation. If the power of the mobile terminal is insufficient, effective communication or related information cannot be performed. application. At present, one of the measures to solve the problem of insufficient power is that the user carries a spare battery so that it can be replaced at any time. The disadvantage is that the battery is inconvenient to carry, and there is a risk of losing or forgetting to charge; the second measure is to prepare the charger at any time, and the disadvantage is that the battery is found. When not enough, you may not find an appropriate environment to charge. Wireless charging technology refers to a method of providing power to an electronic device by means of wireless rather than a conventional cable connection. At the beginning of this century, non-electric charging technology has been introduced, and it has gradually become practical in recent years. With the introduction of industry regulations, wireless charging technology has been supported by more and more terminal manufacturers. However, since the wireless charging technology has not yet reached the level of universal application, the wireless charging device and the wireless powering device have a single function. When using a mobile terminal having a wireless charging function, the wireless power supply device needs to be carried, which brings a lot of inconvenience to the user. SUMMARY OF THE INVENTION The present invention provides a charging and discharging method for a terminal and a charging and discharging terminal to solve at least the problem that the wireless charging device and the wireless power feeding device have a single function in the related art and cause inconvenience to the user. According to an aspect of the present invention, a charging and discharging method of a terminal is provided, the method comprising: detecting whether a wireless signal of a specific frequency that satisfies a predetermined signal strength is received; and wireless according to the specific frequency that satisfies the predetermined signal strength The signal and the preset identification code determine a current working mode of the wireless charging and discharging unit, wherein the working mode is a receiving mode or a transmitting mode, and the identification code is used to distinguish between the device to be charged and the wireless charging device; In the case of the receiving mode, the charging and discharging coils connected to the receiving unit are wirelessly charged; in the case where the operating mode is the transmitting mode, the charging and discharging coils connected to the transmitting unit are The device to be charged is wirelessly powered. Preferably, before determining the current working mode of the wireless charging and discharging unit according to the wireless signal of the specific frequency that satisfies the predetermined signal strength and the preset identification code, the method further includes: determining that the predetermined signal is satisfied The identity legality of the sender of the wireless signal of the specific frequency of the strength; or determining whether the sender of the wireless signal of the specific frequency that satisfies the predetermined signal strength is within the valid range. Preferably, determining, according to the wireless signal of the specific frequency that satisfies the predetermined signal strength, and a preset identification code, that a current working mode of the wireless charging and discharging unit comprises: determining, according to the identification code, that the predetermined signal strength is satisfied. Whether the sender of the wireless signal of the specific frequency is the device to be charged or the wireless charging device; and if the sender of the wireless signal of the specific frequency that satisfies the predetermined signal strength is the device to be charged, determining The current working mode of the wireless charging and discharging unit is a transmitting mode; if the wireless transmitting device of the specific frequency that satisfies the predetermined signal strength is the wireless charging device, determining that the wireless charging and discharging unit is currently The working mode is the receiving mode. Preferably, wirelessly charging itself by the charging and discharging coil connected to the receiving unit comprises: converting the alternating current signal from the charging and discharging coil into a direct current signal, and charging its own battery through the wireless charging interface. Preferably, wirelessly supplying the device to be charged through a charging and discharging coil connected to the transmitting unit comprises: converting the direct current signal from the external power source into an alternating current signal, and charging and discharging through the transmitting unit A coil is sent to the device to be charged. Preferably, before determining the current working mode of the wireless charging and discharging unit according to the wireless signal of the specific frequency that satisfies the predetermined signal strength and the preset identification code, the method further includes: monitoring an external power interface; when the external The power supply interface has an external power input and does not detect a wireless signal of the specific frequency that satisfies the predetermined signal strength, and enters a wired charging mode. Preferably, after wirelessly supplying power to the device to be charged through a charging and discharging coil connected to the transmitting unit, the method further includes: if the external power source detects that there is an external power input, if the charging is to be charged If the battery of the device is full or the device to be charged has left the effective charging range, the wired charging mode is entered to perform wired charging for its own battery. Preferably, entering the wired charging mode to perform wired charging for the battery includes: in the process of wired charging, if the wireless signal of the specific frequency that satisfies the predetermined signal strength is received, it is confirmed that there is a legitimate charging to be charged. The device no longer charges the battery itself, switches to the wireless power supply mode, and wirelessly supplies the device to be charged. According to another aspect of the present invention, there is also provided a charging and discharging terminal, the terminal comprising: a detecting module configured to detect whether a wireless signal of a specific frequency satisfying a predetermined signal strength is received; a determining module configured to satisfy the Determining wireless charging and discharging by the wireless signal of the specific frequency of the predetermined signal strength and the preset identification code a current working mode of the unit, where the working mode is a receiving mode or a transmitting mode, the identifier is used to distinguish between a device to be charged and a wireless charging device; and the processing module is configured to determine, in the determining module, that the working mode is In the case of the receiving mode, the charging and discharging coils connected to the receiving unit are wirelessly charged; and in the case where the determining module determines that the operating mode is the transmitting mode, the charging is connected to the transmitting unit The discharge coil wirelessly supplies the device to be charged. Preferably, the terminal further includes: a monitoring module, configured to monitor an external power interface; and a wired charging module, configured to: when the monitoring module detects that the external power interface has an external power input and the detecting module does not detect satisfaction When the wireless signal of the specific frequency of the predetermined signal strength is entered, the wired charging mode is entered. According to the present invention, when receiving a wireless signal of a specific frequency that satisfies a predetermined signal strength, determining an operation mode of the wireless charging and discharging unit based on the received wireless signal of a specific frequency that satisfies a predetermined signal strength and a previously agreed identification code, In the case that the working mode is the receiving mode, the user is wirelessly charged; in the case that the working mode is the transmitting mode, the charging device is wirelessly powered, so that the terminal has both the wireless charging and the wireless power supply function, and the related technology is solved. The wireless charging device and the wireless power supply device have a single function, which causes inconvenience to the user, improves the flexibility of the wireless charging and discharging device, and improves the user experience. BRIEF DESCRIPTION OF THE DRAWINGS The accompanying drawings, which are set to illustrate,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,, 1 is a flow chart of a charging and discharging method of a terminal according to an embodiment of the present invention; FIG. 2 is a structural block diagram of a charging and discharging terminal according to an embodiment of the present invention; FIG. 3 is a charging according to a preferred embodiment of the present invention. FIG. 4 is a schematic diagram of connection of a charging and discharging terminal related module according to a preferred embodiment of the present invention; FIG. 5 is a diagram of switching between three states of wired charging, wireless charging, and wireless power supply according to a preferred embodiment of the present invention; FIG. 6 is a schematic diagram of application of a terminal in a wired charging state according to a preferred embodiment of the present invention; FIG. 7 is a front view of a terminal as a device to be charged during wireless charging according to a preferred embodiment of the present invention; 8 is a side view of a terminal as a device to be charged during wireless charging according to a preferred embodiment of the present invention; FIG. 9 is a front view of a terminal as a wireless power supply device during wireless charging according to a preferred embodiment of the present invention; FIG. A terminal of a preferred embodiment of the present invention is a side view of a wireless power supply device during wireless charging. BEST MODE FOR CARRYING OUT THE INVENTION Hereinafter, the present invention will be described in detail with reference to the accompanying drawings. It should be noted that the embodiments in the present application and the features in the embodiments may be combined with each other without conflict. In this embodiment, a charging and discharging method of a terminal is provided. FIG. 1 is a flowchart of a charging and discharging method of a terminal according to an embodiment of the present invention. As shown in FIG. 1, the method includes the following steps: Step S102: Receiving a wireless signal of a specific frequency that satisfies a predetermined signal strength; Step S104, determining a current working mode of the wireless charging and discharging unit according to the wireless signal of the specific frequency that satisfies the predetermined signal strength and the preset identification code, wherein the working mode is receiving a mode or a transmission mode, the identification code is used to distinguish between the device to be charged and the wireless charging device; Step S106, in the case that the working mode is the receiving mode, wirelessly charging itself by the charging and discharging coil connected to the receiving unit; In the case where the mode is the transmission mode, the charging device is wirelessly powered by the charging and discharging coil connected to the transmitting unit. In this embodiment, when the wireless signal of the specific frequency that satisfies the predetermined signal strength is received through the foregoing steps, it can be considered that there is a device capable of performing an effective charging or a charging operation in the vicinity of the terminal. At this time, the terminal can satisfy the predetermined signal according to the received. The wireless signal of the specific frequency of the intensity and the previously agreed identification code determine the working mode of the wireless charging and discharging unit, thereby determining whether to wirelessly charge itself or to wirelessly supply the charging device, so that the terminal has both wireless charging and wireless power supply functions. The invention solves the problem that the functions of the wireless charging device and the wireless power supply device in the related art are single and causes inconvenience to the user, improves the flexibility of using the wireless charging and discharging device, and improves the user experience. As a preferred embodiment, in order to ensure the reliability of the opposite end charging and discharging device, the identity legality of the sender of the wireless signal of the specific frequency satisfying the predetermined signal strength may be determined before determining the current working mode of the wireless charging and discharging unit; Or, determining whether the sender of the wireless signal of the specific frequency that satisfies the predetermined signal strength is Within the valid range. For example, whether the sender is legal can be judged by the content of the identification code carried in the wireless signal. In this way, the possibility that the terminal is abnormal during the charging and discharging process is reduced, for example, the terminal can be prevented from transmitting a limited amount of power to the incorrect peer charging device when the power is supplied, thereby saving resources. . The identification code in the step S104 may be set by the user in advance, or may be agreed by other means. In a specific implementation, one end of the charging and discharging ends may send the identification code carrying the wireless signal to the opposite end. device. For example, the device to be charged may send the identification code to the peer device, or may be sent by the device on the power supply side. As a preferred implementation, the device may be configured to send the identifier by charging or powering the active device, and after receiving the identifier, the terminal may determine, according to the identifier, whether the sender of the wireless signal is the device to be charged or wirelessly. In the case that the sender of the wireless signal is the device to be charged, it may be determined that the current working mode of the wireless charging and discharging unit is the transmitting mode; in the case where the transmitting party of the wireless signal is the wireless charging device, the wireless charging and discharging unit may be determined. The current working mode is the receiving mode. In this way, the terminal can conveniently adjust its working mode according to the needs of the charging and discharging peer device, thereby improving the flexibility of using the terminal. In a specific implementation, only one charging and discharging coil may be disposed in the terminal, and the switching between the transmitting mode and the receiving mode of the wireless charging and discharging unit operation mode is realized by controlling the other end of the coil to be the receiving unit or the transmitting unit. For example, in the case where the charging and discharging coil is connected to the receiving unit (that is, the operating mode of the charging and discharging unit is the receiving mode), the AC signal from the charging and discharging coil can be converted into a DC signal by the receiving unit, and is passed through the wireless charging interface. The battery is charged by itself; and when the charging and discharging coil is connected to the transmitting unit (that is, the working mode of the charging and discharging unit is the transmitting mode), the DC signal from the external power source can be converted into an alternating current signal through the transmitting unit, and The charging and discharging coil connected to the transmitting unit is sent to the device to be charged. Among them, the AC signal source of the charging and discharging coil has two aspects: In the first case, when the terminal functions as a device to be charged and operates in the receiving mode, the AC signal is generated by other wireless charging devices, and the specific generating manner includes It is not limited to the forward switching mode or the flyback conversion mode common to the switching power supply, and is transmitted outward through the coil to which the wireless charging device (ie, the wireless charging device) belongs, and the charging and discharging coil of the terminal receives the AC signal through induction. And charging is performed after the AC-DC conversion of the receiving unit; in the second case, when the terminal functions as a wireless charging device and operates in a transmitting mode, the AC signal is generated by the transmitting unit of the terminal, and the specific generating mechanism is the same as the first type. In this case, the AC signal is sent out through the charging and discharging coil of the terminal, and the other device to be charged receives the AC signal through its receiving coil, and is charged after being subjected to internal AC-DC conversion processing. The AC signal of the charging and discharging coil may include at least two frequencies, wherein the first frequency corresponds to an operating mode of wireless charging or wireless power supply, and is an operating frequency for realizing power transmission; the second frequency corresponds to detection and detection of the wireless charging device. The identification is the operating frequency of the interaction between the wireless charging device and the device to be charged. For example, in a normal wireless charging or wireless power supply process, the AC signal operates at a second frequency to transmit an identification code and an identity confirmation. After completion of the confirmation, the AC signal operates at a first frequency for wireless transmission. . Preferably, during the operation of the AC signal at the first frequency, the second frequency can also be used to confirm the state of the wireless charging device and the device to be charged, and the interaction process can occur at certain time intervals and is completed in a very short time. Does not affect the normal operation of wireless charging or wireless power supply. For example, the terminal may include an external power interface, a charging management unit, a wireless charging interface, and a wireless power management unit; the external power interface may be connected to an external power source, and the external power source includes a Universal Serial Bus (USB) or an adapter. The charging management unit further includes a charging mode detecting unit for identifying the charging mode and feeding back the current charging state information to the user; the wireless charging interface is connected to the charging management unit and connected to the wireless power management unit. The external power interface is connected to the wireless power management unit, and the wireless power management unit operates in two modes: a receiving mode and a transmitting mode; when the wireless power management unit operates in the transmitting mode, the terminal implements a wireless power supply function; and the wireless The power management unit may further include a receiving unit, a transmitting unit, a wireless power control unit, a device identifying unit, and a coil; the receiving unit operates in a receiving mode of the wireless power management unit; the transmitting unit operates in a transmitting mode of the wireless power management unit; The power control unit is connected to the coil, and determines whether the coil is connected to the transmitting unit or the receiving unit according to the result of the feedback of the device identification unit; the transmitting unit and the receiving unit share the same group of coils. At this time, when the external power supply interface has no external power supply, and the terminal is in the effective range of the external wireless charging device, the wireless power management unit operates in the receiving mode, and is connected to the charging management unit through the wireless charging interface to realize wireless charging; The interface is connected to the external power supply and is connected to the wireless power management unit, and there are other legal charging devices in the effective charging range of the terminal. At this time, the wireless power management unit operates in the sending mode, and the terminal acts as a wireless charging device for other legal charging. The device is wirelessly powered. Considering that the terminal's own battery capacity is small, although the terminal's own battery can be used for external power supply, in order to replenish the terminal's own battery capacity as soon as possible, the external power supply interface can be prioritized before determining the current working mode of the wireless charging and discharging unit. Monitoring is performed; when the external power supply interface has an external power input and no wireless signal of a specific frequency that satisfies the predetermined signal strength is detected, the wired charging mode is entered. When the external power supply interface detects that there is an external power input, if the battery of the device to be charged is full or the device to be charged has left the effective charging range, the wired charging mode is entered, and the battery is wired for its own battery. It can be seen that the terminal has the functions of line charging and wireless charging, and has the functions of wireless charging and wireless power supply. Accordingly, the terminal includes three states: wired charging, wireless charging and wireless power supply. Among them, realize wired charging work The energy can be as follows: The external power interface is connected to the charging management unit, and when the external power is connected, the wired charging function is implemented. When the terminal receives the wireless signal of the specific frequency that satisfies the predetermined signal strength, and confirms that there is a legitimate device to be charged, the terminal does not charge the battery and switches to the wireless power supply mode. The device to be charged is wirelessly powered. In this way, when it is detected that the device to be charged needs to be charged, the device to be charged is preferentially powered, and the battery is charged after the charging is completed, thereby improving the user experience. For example, when the wireless power management unit operates in the transmitting mode, the terminal acts as a wireless charging device and is powered by an external power source. At this time, if the device identifying unit confirms that there is a legitimate device to be charged, the terminal no longer performs its own charging and switches to Wireless power supply mode; When the battery of the external legal charging device is full or has left the effective charging range of the terminal, the terminal switches to the wired charging mode to charge the terminal's own battery. Corresponding to the above method, the embodiment further provides a charging and discharging terminal, which is used to implement the above embodiments and preferred embodiments, and has not been described again. As used hereinafter, the term "module" may implement a combination of software and/or hardware of a predetermined function. Although the apparatus described in the following embodiments is preferably implemented in software, hardware, or a combination of software and hardware, is also possible and conceivable. 2 is a structural block diagram of a charging and discharging terminal according to an embodiment of the present invention. As shown in FIG. 2, the terminal includes: a detecting module 22, a determining module 24, and a processing module 26. The individual modules are described in detail below. The detecting module 22 is configured to detect whether a wireless signal of a specific frequency that satisfies a predetermined signal strength is received. The determining module 24 is coupled to the detecting module 22 and configured to set a wireless signal according to a specific frequency that satisfies a predetermined signal strength and a preset identification. The code determines a current working mode of the wireless charging and discharging unit, wherein the working mode is a receiving mode or a transmitting mode, the identification code can be used to distinguish between the device to be charged and the wireless charging device; the processing module 26 is coupled with the determining module 24, and is configured to To wirelessly charge itself through the charging and discharging coil connected to the receiving unit in the case where the determining module 24 determines that the operating mode is the receiving mode; and in the case where the determining module 24 determines that the operating mode is the transmitting mode, by connecting to the transmitting unit The charging and discharging coils are wirelessly powered to the charging device. In this embodiment, when the detection module 22 receives the wireless signal of the specific frequency that meets the predetermined signal strength, the device can be considered as having a device capable of performing an effective charging or a charging operation in the vicinity of the terminal. At this time, the terminal can pass the determining module 24 Determining an operation mode of the wireless charging and discharging unit according to the received wireless signal of a specific frequency that satisfies a predetermined signal strength and a previously agreed identification code, and passing through the receiving unit through the processing module 26 when the working mode is the receiving mode The connected charging and discharging coil wirelessly charges itself; in the case that the working mode is the transmitting mode, the charging device is wirelessly powered by the charging and discharging coil connected to the transmitting unit, so that the terminal can be itself through the external wireless charger. Wireless charging, and itself It can also be a wireless power supply device for powering other wireless devices to be charged, and has the functions of wireless charging and wireless power supply. The invention solves the problem that the functions of the wireless charging device and the wireless power supply device in the related art are single and causes inconvenience to the user, improves the flexibility of using the wireless charging and discharging device, and improves the user experience. 3 is a structural block diagram of a charging and discharging terminal according to a preferred embodiment of the present invention. As shown in FIG. 3, the terminal may further include: a monitoring module 32 configured to monitor an external power interface; a wired charging module 34, and a detecting module 22 The monitoring module 32 is coupled to be set to enter a wired charging mode when the monitoring module 32 detects that the external power interface has an external power input and the detection module 22 does not detect a wireless signal of a particular frequency that satisfies the predetermined signal strength. The following description will be made in conjunction with the preferred embodiments which incorporate the above-described embodiments and preferred embodiments. In the preferred embodiment, an electronic device is provided, and in particular, a terminal device having a wireless charging function is provided. The terminal can realize the compatibility of the wired charging function and the wireless charging function, and clearly indicates the current charging state to the user; at the same time, the terminal can also realize the compatibility of the wireless charging and the wireless power supply, and the following takes the terminal as a wireless charging device as an example. Detailed instructions are given. In order to achieve compatibility between the wired charging function and the wireless charging function, the above terminal may include an external power interface, a wireless charging interface, a charging management unit, and a wireless power management unit. The external power interface may include a USB or an adapter, which is consistent with the currently used wired charging interface, and is connected to the charging management unit; the wireless charging interface receives power from the wireless power management unit and transmits it to the charging management unit; the charging management unit receives The output from an external power source or wireless charging unit charges the terminal's own battery. In addition, in order to achieve compatibility between wireless charging and wireless power supply, the above terminal can also implement compatibility and switching between wireless charging and wireless power supply through the wireless power management unit. The wireless power management unit is connected to the wireless charging interface, and specifically includes a receiving unit, a transmitting unit, a wireless charging and discharging control unit, a device identifying unit, and a charging and discharging coil. For example, when the terminal works in the wireless charging mode, as the device to be charged, the receiving unit converts the AC signal from the charging and discharging coil into a DC signal, and outputs it to the charging management unit through the wireless charging interface to charge the terminal battery; When the wireless power supply mode (ie, the transmission mode) is used as the wireless charging device (also called the wireless charger), the external power supply supplies power to the terminal and stops charging for the battery; when the terminal operates in the wireless power supply mode as the wireless charging device The transmitting unit converts the DC signal from the external power source into an AC signal, and transmits it through the wireless charging and discharging coil, so that other devices to be charged can receive and implement wireless charging. The device includes a device identification unit, and the unit is responsible for determining whether there is a legal wireless charging device or a wireless charging device within a valid range of charging and discharging of the terminal, and selecting a wireless power management state of the terminal according to the determination result. For example, the device identification unit can transmit and receive a wireless detection signal at a specific frequency, and the transmission signal strength of the detection signal can be received by other devices only within a certain range, and the received signal strength of the detection signal is only in other The device is valid only when the device is within a certain range of the terminal. After the range is exceeded, the transmitting signal and the receiving signal of the detecting signal are no longer valid. The charging identification unit distinguishes the device to be charged or the wireless charging device according to the previously agreed identification code, according to the received detection. The signal strength and feedback information confirms whether the identity of the device to be charged or the wireless charging device is legal and whether it is within the valid range. According to the feedback of the device identification unit, the wireless charging and discharging control unit in the terminal enables or disables the transmitting unit or the receiving unit to ensure that the charging and discharging coil is only connected to one of the transmitting unit or the receiving unit, and the terminal is implemented as a wireless charging device. Or switching of a wireless powered device (ie wireless charger). In the manner provided by the preferred embodiment, the terminal can simultaneously have both a wireless charging and a wireless power supply function, and can be used as a wireless charging device to supply power to other wireless charging devices under certain conditions, and can perform mode switching according to the actual use environment of the user. For example, the charging state of the terminal may include a wired charging mode, a wireless charging mode, and a wireless power supply mode, so that the terminal has both line charging, wireless charging, and wireless power supply functions, thereby being able to adapt to various application environments. To implement the different charging states described above, the terminal may include an external power interface, a charging management unit, a wireless charging interface, and a wireless power management unit during implementation. The charging management unit further includes a charging mode detecting unit, configured to feed back current charging state information to the user. In the wired charging mode, the external power supply (USB or adapter) supplies power to the terminal through the external power interface, and completes wired charging through the charging management unit; in the wireless charging mode, the wireless power management unit receives power from the external wireless charging device, through The wireless charging interface is output to the charging management unit, and finally the wireless charging is completed by the charging management unit; in the wireless power supply mode, the external power source (USB or adapter) supplies power to the wireless power management unit through the external power interface, and completes the radio through the wireless power management unit. The ability to convert wireless power to other wireless charging devices. In addition, when the external legal charging device battery is full or leaves the effective charging range of the terminal, the terminal switches to its own wired charging state, and when the terminal operates in the wireless power supply mode, the external power source supplies power to transmit the communication to the device to be charged. Signal, and stop charging the terminal itself. The preferred embodiments will be further described in detail below with reference to the accompanying drawings. 4 is a schematic diagram of connection of a charging and discharging terminal related module according to a preferred embodiment of the present invention. As shown in FIG. 4, the terminal includes an external power interface 1, a wireless charging interface 2, a charging management unit 3, a wireless power management unit 4, and a terminal. System 5. The charging management unit 3 further includes a charging mode detecting unit 31; an external power interface 1 And the wireless charging interface 2 is respectively connected to the charging management unit 3, and provides the required power in the charging management unit 3 in the wired charging and wireless charging modes respectively; whether the wired charging mode or the wireless charging mode is finally completed by the charging management unit 3 The external power interface 1 is also connected to the wireless power management unit 4. When the terminal operates in the wireless power supply mode and is used as a wireless charging device, the external power interface 1 supplies power to the wireless power management unit 4, and the wireless power management unit 4 waits outside. The charging device is wirelessly powered to enable the wireless charging function, and the charging mode detecting unit 31 implements monitoring of the external power interface 1 and the wireless charging interface 2 to identify a specific charging mode. The wireless power management unit 4 will be mainly described below: The wireless power management unit 4 includes a receiving unit 41, a transmitting unit 42, a wireless power control unit 43, a device identifying unit 44, and a coil 45. The receiving unit 41 and the transmitting unit 42 respectively correspond to the receiving mode and the sending mode of the wireless power management unit 4; the device setting unit 44 is responsible for detecting and further verifying the external wireless charging device or the device to be charged, thereby determining the external wireless charging. Whether the identity of the device or device to be charged is legal. FIG. 5 is a schematic diagram of a manner of switching between three states of wired charging, wireless charging, and wireless power supply according to a preferred embodiment of the present invention. FIG. 5 is described below in conjunction with the related modules in FIG. As shown in FIG. 5, the charging detecting unit 3 monitors the external power source interface 1 and the wireless charging interface 2 in real time, and the device identifying unit 44 periodically detects whether there is a legitimate wireless device to be charged or a wireless charging device. If the external power interface 1 has an input and feeds back to the terminal system 5, the terminal system 5 further checks whether the wireless power control unit 43 has feedback. When the wireless power control unit 43 has no feedback, the wired charging process is started, and the current wired charging state is fed back to the user; if the wireless power control unit 43 has feedback and receives the information of the external legal charging device from the device identifying unit 44, the terminal Start to enter the wireless power mode and feedback the current wireless power status to the user. If the external power interface 1 has no input, but the terminal system 5 receives the feedback from the wireless power control unit 43, and the device identification unit 44 receives the information of the external legal wireless charging device, the terminal starts to enter the wireless charging mode and feeds the current feedback to the user. Wireless charging status. For example, the device identification unit 44 transmits and receives a wireless detection signal at a specific frequency, and the transmitted signal strength of the detected signal can be received by other devices only within a certain range, and the received signal strength of the detected signal is only in other The device is valid only when the device is in a certain range of the terminal. After the range is exceeded, the transmitted signal and the received signal of the detection signal are no longer valid. The device identification unit 44 distinguishes the device to be charged or the wireless charging device according to the previously agreed identification code, the identification code defines different device types, and can add state information of the device, and the device identification unit 44 according to the received detection signal strength and feedback. The information confirms whether the identity of the device to be charged or the wireless charging device is legal and whether it is within a valid range. The wireless power control unit 43 determines whether the wireless power management unit 4 operates in the reception mode or the transmission mode based on the result of the feedback from the device identification unit 44, and feeds back the detection result of the device identification unit 44 to enable the user to know the current wireless power management state. The coil 45 serves as an interface for wireless power transmission, and realizes power transfer between the terminal and an external wireless charging device or a device to be charged. In particular, the terminal will use the same set of coils 45 in both the wireless charging mode and the wireless power supply mode, and the coil 45 is located on the back of the terminal. 6 is a schematic diagram of application of a terminal in a wired charging state according to a preferred embodiment of the present invention. As shown in FIG. 6, when the terminal operates in a wired charging mode, the charging mode of the terminal is controlled by the charging management unit 3 to complete the charging process. . 7 is a front elevational view of a terminal as a device to be charged during wireless charging according to a preferred embodiment of the present invention, and FIG. 8 is a side view of the terminal as a device to be charged during wireless charging according to a preferred embodiment of the present invention, as shown in FIG. 7 and FIG. As shown in FIG. 8, when the terminal operates in the wireless charging mode, the terminal 201 is in the effective range of the wireless charging device 101, and the terminal 201 and the wireless charging device 101 complete the identification, and the terminal 201 starts receiving power transmission from other wireless charging devices. , for wireless charging. 9 is a front elevational view of a terminal as a wireless powering device during wireless charging according to a preferred embodiment of the present invention, and FIG. 10 is a side view of the terminal as a wireless powering device during wireless charging according to a preferred embodiment of the present invention, as shown in FIG. As shown in FIG. 10, when the terminal operates in the wireless power supply mode, the terminal 201 functions as a wireless charging device, and is powered by the external power source 401. At this time, the terminal 201 no longer performs its own charging. The external wireless charging device 301 is placed on the back of the terminal 201, and the identification is completed, and the terminal 201 wirelessly charges it. When the battery of the device to be charged 301 has been fully charged or has left the effective charging range of the terminal 201, the terminal 201 switches to the wired charging mode to charge its own battery. In summary, when receiving a wireless signal of a specific frequency that satisfies a predetermined signal strength, the embodiment of the present invention determines wireless charging and discharging according to a received wireless signal of a specific frequency that satisfies a predetermined signal strength and a previously agreed identification code. The working mode of the unit is to wirelessly charge itself when the working mode is the receiving mode; when the working mode is the transmitting mode, the charging device is wirelessly powered, so that the terminal has both wireless charging and wireless power supply functions. The invention solves the problem that the functions of the wireless charging device and the wireless power supply device in the related art are single and causes inconvenience to the user, improves the flexibility of using the wireless charging and discharging device, and improves the user experience. In another embodiment, software is also provided for performing the technical solutions described in the above embodiments and preferred embodiments. In another embodiment, a storage medium is also provided, the software being stored, including but not limited to an optical disk, a floppy disk, a hard disk, a rewritable memory, and the like. Obviously, those skilled in the art should understand that the above modules or steps of the present invention can be implemented by a general-purpose computing device, which can be concentrated on a single computing device or distributed over a network composed of multiple computing devices. Alternatively, they may be implemented by program code executable by the computing device, such that they may be stored in the storage device by the computing device and, in some cases, may be different from the order herein. The steps shown or described are performed, or they are separately fabricated into individual integrated circuit modules, or a plurality of modules or steps are fabricated as a single integrated circuit module. Thus, the invention is not limited to any specific combination of hardware and software. The above is only the preferred embodiment of the present invention, and is not intended to limit the present invention, and various modifications and changes can be made to the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and scope of the present invention are intended to be included within the scope of the present invention.

Claims

Claim

A method for charging and discharging a terminal, comprising:

Detecting whether a wireless signal of a specific frequency that satisfies a predetermined signal strength is received; determining a current operating mode of the wireless charging and discharging unit according to the wireless signal of the specific frequency that satisfies the predetermined signal strength and a preset identification code, where The working mode is a receiving mode or a transmitting mode, and the identifier is used to distinguish between the device to be charged and the wireless charging device;

In the case that the working mode is the receiving mode, wireless charging is performed by a charging and discharging coil connected to the receiving unit; in a case where the working mode is the transmitting mode, charging through the transmitting unit The discharge coil wirelessly supplies the device to be charged.

The method according to claim 1, wherein, before determining the current working mode of the wireless charging and discharging unit according to the wireless signal of the specific frequency that satisfies the predetermined signal strength and the preset identification code, the method further includes:

Determining the identity of the sender of the wireless signal of the specific frequency that satisfies the predetermined signal strength; or

It is judged whether or not the sender of the wireless signal of the specific frequency satisfying the predetermined signal strength is within the effective range.

3. The method according to claim 1, wherein determining a current operating mode of the wireless charging and discharging unit according to the wireless signal of the specific frequency that satisfies the predetermined signal strength and a preset identification code comprises: according to the identification code Determining whether a sender of the wireless signal of the specific frequency that satisfies the predetermined signal strength is the device to be charged or the wireless charging device;

Determining, in a case where the sender of the wireless signal of the specific frequency that satisfies the predetermined signal strength is the device to be charged, determining a current working mode of the wireless charging and discharging unit as a transmitting mode; satisfying the predetermined signal strength In the case that the sender of the wireless signal of the specific frequency is the wireless charging device, it is determined that the current working mode of the wireless charging and discharging unit is the receiving mode.

4. The method according to claim 1, wherein wirelessly charging itself by a charging and discharging coil connected to the receiving unit comprises:

The receiving unit converts an alternating current signal from the charging and discharging coil into a direct current signal, and charges its own battery through a wireless charging interface.

5. The method according to claim 1, wherein wirelessly supplying power to the device to be charged through a charging and discharging coil connected to the transmitting unit comprises:

The transmitting unit converts a DC signal from an external power source into an AC signal, and transmits the signal to the device to be charged through a charging and discharging coil connected to the transmitting unit.

Monitoring the external power interface;

The wired charging mode is entered when the external power source has an external power input and does not detect a wireless signal of the specific frequency that satisfies the predetermined signal strength.

The method according to claim 6, wherein after the wireless charging of the device to be charged is performed by a charging and discharging coil connected to the transmitting unit, the method further includes:

When the external power interface detects that there is an external power input, if the battery of the device to be charged is full or the device to be charged has left the effective charging range, the wired charging mode is entered as its own battery. Wired charging.

8. The method of claim 7, wherein entering the wired charging mode to perform wired charging of its own battery comprises:

In the process of wired charging, if a wireless signal of the specific frequency that satisfies the predetermined signal strength is received, and it is confirmed that there is a legitimate device to be charged, the battery is no longer charged, and the wireless power supply mode is switched to The device to be charged is wirelessly powered.

9. A charge and discharge terminal, comprising:

a detecting module configured to detect whether a wireless signal of a specific frequency that satisfies a predetermined signal strength is received;

a determining module, configured to determine a current working mode of the wireless charging and discharging unit according to the wireless signal of the specific frequency that satisfies the predetermined signal strength and a preset identification code, where the working mode is a receiving mode or a transmitting mode, where The identification code is used to distinguish between the device to be charged and the wireless charging device; and the processing module is configured to, when the determining module determines that the working mode is the receiving mode, perform the self on the charging and discharging coil connected to the receiving unit Wireless charging; The determining module determines that the working mode is the transmitting mode, and wirelessly supplies power to the device to be charged through a charging and discharging coil connected to the transmitting unit.

The terminal according to claim 9, wherein the terminal further comprises: a monitoring module, configured to monitor an external power interface;

a wired charging module, configured to enter a wired charging mode when the monitoring module detects that the external power interface has an external power input and the detecting module does not detect the wireless signal of the specific frequency that satisfies the predetermined signal strength .