WO2014187268A1 - 一种移动热点ufi设备及开机方法 - Google Patents

一种移动热点ufi设备及开机方法 Download PDF

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Publication number
WO2014187268A1
WO2014187268A1 PCT/CN2014/077614 CN2014077614W WO2014187268A1 WO 2014187268 A1 WO2014187268 A1 WO 2014187268A1 CN 2014077614 W CN2014077614 W CN 2014077614W WO 2014187268 A1 WO2014187268 A1 WO 2014187268A1
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Prior art keywords
potential
control signal
control
signal
chip
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PCT/CN2014/077614
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English (en)
French (fr)
Inventor
刘嘉俊
王继红
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中兴通讯股份有限公司
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Priority to US15/108,433 priority Critical patent/US9763196B2/en
Publication of WO2014187268A1 publication Critical patent/WO2014187268A1/zh

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Classifications

    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04WWIRELESS COMMUNICATION NETWORKS
    • H04W52/00Power management, e.g. TPC [Transmission Power Control], power saving or power classes
    • H04W52/02Power saving arrangements
    • H04W52/0209Power saving arrangements in terminal devices
    • H04W52/0261Power saving arrangements in terminal devices managing power supply demand, e.g. depending on battery level
    • H04W52/0296Power saving arrangements in terminal devices managing power supply demand, e.g. depending on battery level switching to a backup power supply
    • HELECTRICITY
    • H02GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02JCIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
    • H02J7/00Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries
    • HELECTRICITY
    • H02GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02JCIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
    • H02J2207/00Indexing scheme relating to details of circuit arrangements for charging or depolarising batteries or for supplying loads from batteries
    • H02J2207/10Control circuit supply, e.g. means for supplying power to the control circuit
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04WWIRELESS COMMUNICATION NETWORKS
    • H04W88/00Devices specially adapted for wireless communication networks, e.g. terminals, base stations or access point devices
    • H04W88/08Access point devices
    • YGENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02DCLIMATE CHANGE MITIGATION TECHNOLOGIES IN INFORMATION AND COMMUNICATION TECHNOLOGIES [ICT], I.E. INFORMATION AND COMMUNICATION TECHNOLOGIES AIMING AT THE REDUCTION OF THEIR OWN ENERGY USE
    • Y02D30/00Reducing energy consumption in communication networks
    • Y02D30/70Reducing energy consumption in communication networks in wireless communication networks

Definitions

  • the invention relates to the field of circuit control, in particular to a mobile hotspot UFI device and a booting method. Background technique
  • High-performance power management chips are needed to control battery power. These high-performance chips can basically implement two boot modes: one is charging boot, ie After the phone is turned off, it is actively turned on during charging; the other is the button is turned on, that is, the power button is turned on through the delay circuit.
  • UFI devices that can carry routers
  • its main function is to transmit RF signals
  • its internal hardware is small, so no high-performance power management chip is needed for control.
  • UFI devices are generally equipped with inexpensive power management chips, that is, the power management chip can only recognize a potential control signal, which can only be used to activate the button.
  • UFI devices are generally equipped with inexpensive power management chips, that is, the power management chip can only recognize a potential control signal, which can only be used to activate the button.
  • how to realize the charging and starting with a potential control signal without affecting the button startup is a technical difficulty that needs to be solved.
  • an embodiment of the present invention provides a mobile hotspot UFI device and a booting method.
  • Embodiments of the present invention provide a mobile hotspot UFI device including a battery, a main control chip, and a power management chip.
  • the power management chip internally provides a control signal at a first potential, and the control signal is The second power level, the power management chip controls the power The pool is powered by the hardware of the UFI device.
  • the hardware that is powered by the battery includes at least the main control chip.
  • the UFI device further includes:
  • a power-on control unit the input end of which is connected to an external power source for charging the battery, the output end of which is connected to the control signal, and the control end thereof is connected to the general-purpose input and output of the main control chip (GPIO, General Purpose Input Output a signal; when the main control chip does not output the GPIO signal, the power-on control unit turns on the external power source to the control signal, so that the control signal changes from a first potential to a second potential; The power-on control unit disconnects the external power source from the control signal when the master chip outputs the GPIO signal.
  • GPIO General Purpose Input Output a signal
  • An embodiment of the present invention further provides a method for booting a mobile hotspot UFI device, including: detecting whether a main control chip of a UFI device outputs a GPIO signal when an external power source charges a battery of the UFI device;
  • the external power source is introduced to the control signal of the power management chip of the UFI device, so that the control signal changes from the first potential to the second potential, so that the power management chip controls the Powering the battery; wherein the hardware that is powered by the battery includes at least the main control chip;
  • the master chip If the master chip outputs the GPIO signal, the introduction of the external power source to the control signal is stopped, so that the control signal is restored to the first potential by the second potential.
  • the boot control unit of the embodiment of the present invention can determine whether the UFI device is powered on according to the GPIO signal outputted by the main control chip of the UFI device, that is, when the UFI is in the off state, the main control chip does not work, so the GPIO signal is not output. At this time, if an external power source charges the battery, the external power supply is used to drive the power management chip, so that the power management chip controls the battery to supply power to the hardware of the UFI device, including the main control chip. After the main control chip is powered, the power is turned on, and the GPIO signal is outputted. The power-on control unit stops the external power supply and changes control according to the GPIO signal.
  • the signal potential is set such that the control signal returns to the first potential, that is, the power management chip is returned to the standby state, thereby ensuring that the power management chip can also be controlled by the switch button after that. Since the driving key of the UFI device can also drive the power management chip by using the control signal of the second potential, so that the power management chip controls the battery power supply, the UFI device of the embodiment of the present invention can use an inexpensive power source that can only recognize one potential signal. Manage the chip, which reduces the cost of the UFI device.
  • FIG. 1 is a schematic structural diagram of a UFI device according to an embodiment of the present invention.
  • FIG. 2 is a schematic structural diagram of a boot control unit according to an embodiment of the present invention.
  • FIG. 3 is a schematic diagram of steps of a method for booting a UFI device according to an embodiment of the present invention. detailed description
  • a booting control method for a mobile hotspot UFI device can be implemented, and the charging and booting function can be realized by using a chip with simple function and low cost, and does not conflict with the switch button of the UFI device.
  • a mobile hotspot UFI device includes a battery, a main control chip, and a power management chip; the power management chip internally provides a control signal at a first potential, and the control signal is The second power level, the power management chip controls the battery to supply power to the hardware of the UFI device; wherein the hardware that is powered by the battery includes at least the main control chip; the UFI device further includes:
  • a power-on control unit the input end of which is connected to an external power source for charging the battery, the output end of which is connected to the control signal, and the control end thereof is connected to the GPIO signal output by the main control chip; when the main control chip does not The power-on control unit causes the external power source when the GPIO signal is output Turning on the control signal, so that the control signal changes from a first potential to a second potential; when the main control chip outputs the GPIO signal, the boot control unit causes the external power supply and the control The signals are disconnected.
  • the boot control unit of the embodiment of the present invention can determine whether the UFI device is powered on according to the GPIO signal outputted by the main control chip of the UFI device. That is, when the UFI is in the off state, the main control chip does not work, so the GPIO signal is not output. At this time, if an external power source charges the battery, the external power supply is used to drive the power management chip, so that the power management chip controls the battery to supply power to the hardware of the UFI device, including the main control chip. After the main control chip is powered, the power is turned on, and the GPIO signal is outputted.
  • the power-on control unit stops the external power supply to change the control signal potential according to the GPIO signal, so that the control signal returns to the first potential, that is, the power management chip is returned to the standby state, thereby It is guaranteed that after this, the power management chip can also be controlled by the switch button. Since the driving key of the UFI device can also drive the power management chip by using the control signal of the second potential, so that the power management chip controls the battery power supply, the UFI device of the embodiment of the present invention can use an inexpensive power source that can only recognize one potential signal. Manage the chip, which reduces the cost of the UFI device.
  • the UFI device since the UFI device acts as a hot spot, it must include a radio frequency transmitter (as shown in Figure 1). During normal operation (ie, transmitting RF signals), the user can determine the battery level by means of a screen display or a signal light (the screen and signal lights are not shown in Figure 1). After the battery is powered off, when the user charges the UFI device, it is often necessary to see how much power the UFI device is flushing. However, combined with the application characteristics of the UFI device itself, most users do not need the URF device's RF transmitter to work (ie, provide a wireless network), because the UFI device itself is a portable mobile hotspot, if in the charging position.
  • the power supply object of the battery when charging is turned on may preferably include: hardware capable of prompting the power, and the radio frequency transmitter may not be used as the power supply object for charging and starting. Compared with the charging start, the power supply object of the button is turned on.
  • the main control chip it also includes: RF transmitter.
  • the foregoing power supply object is determined according to a usage environment of the UFI device.
  • the power supply object for charging and the power supply target for the button to be turned on can be determined.
  • the purpose of the embodiment of the present invention is not a method for determining a power supply object, but a UFI device capable of realizing different power supply modes by using a control signal of a potential (ie, hardware power supply corresponding to the power on of the button and hardware power supply corresponding to the power on and off) Therefore, when the specific implementation is described below, it does not describe what hardware is included in the power supply object.
  • the UFI device of the embodiment of the present invention further includes:
  • a switch button wherein, when the button is pressed, the control signal is changed from a first potential to a second potential; of course, as a technique well known in the art, the switch button is connected to the control signal through a logic delay circuit. Therefore, after the switch button is pressed and reaches a certain time, the control signal gradually changes from the first potential to the second potential;
  • the power management chip specifically includes:
  • the detecting unit is configured to detect a time when the searched control signal changes from the first potential to the second potential, and generate a detection result
  • a storage unit configured to record a first control instruction corresponding to the first time range and a second control instruction corresponding to the second time range; wherein, the external power source changes the time when the control signal changes from the first potential to the second potential a time range; the switch button causes the control signal to change from the first potential to the second potential to belong to the second time range; the first time range and the second time range do not intersect each other; the first control command is configured to The battery provides power for the first preset power supply object, and the second control command is configured to enable the battery to provide power for the second preset power supply object; the first preset power supply object and the second preset power supply object belong to the UFI device. Hardware in the middle, and the first preset power supply object and the second preset power supply object at least include the main control unit;
  • a determining unit configured to determine whether the detection result belongs to the first time range or the second time Range, generating a determination result
  • an execution unit configured to execute the first control instruction or the second control instruction according to the determination result.
  • the power supply object can be adjusted by changing the control command inside the memory unit.
  • the boot control unit is composed of a MOS transistor M1 and a triode M2; the gate of M1 is respectively connected to the external power supply and the collector of M2, the drain thereof is grounded, and the source thereof is connected with the control signal; The emitter of the M2 is grounded, and the base thereof is connected to the GPIO of the main control chip, and is configured to access the control signal;
  • the external power supply can turn M1 on, so that M1 pulls the control signal from the first potential to the second potential; the GPIO signal can turn M2 on and M1 off, thereby maintaining the control signal The first potential in the standby state.
  • the control signal is maintained at the first potential by the power management chip under normal conditions.
  • GPIO signal if there is external power supply, and the control chip outputs GPIO signal, it means that the UFI device is already powered on (that is, the master chip works and outputs GPIO signal), then the GPIO signal turns on M2, so that The collector is low, so that Ml is turned off, the control signal is still at the first potential, and the UFI device remains on.
  • ⁇ Scenario 2> if there is external power supply, the control chip does not output GPIO signal, then the UFI device is already in the shutdown state. At this time, the external power supply directly turns M1 on, and the control signal is pulled from the first potential to the second. Potential.
  • the power management chip detects that the control signal changes from the first potential to the second potential, and confirms that after the button is turned on, the charging start process (ie, the first control command described above) is started, and the battery is controlled to the first pre-control. Set the power supply to the power supply.
  • ⁇ Scenario 3> if no external power supply is detected, if the switch button is pressed, the control signal is changed from the first potential to the second potential.
  • the power management chip detects that the control signal changes from the first potential to the second potential, and confirms that after the button is turned on, the button start process (ie, the second control command described above) is started, and the battery is controlled to the second pre-control. Set the power supply to the power supply. After the power is turned on, the main control chip outputs the GPIO signal. When the button is released, the control signal is pulled high again, and the state at this time is the same as ⁇ Scenario 1>.
  • the UFI device of the embodiment of the present invention has a display screen, and the first power supply object is the main control chip and the display screen when the charging is turned on, and the second power supply object is the main control chip and the display screen and the radio frequency transmitter when the button is turned on.
  • the UFI device When the UFI device is powered on, it is connected to an external power source for charging. The UFI device performs charging and power-on. At this time, the main control chip and the display screen are powered.
  • the master chip control display shows the current power of the UFI device. After that, if the user presses the power button, the UFI device performs the button power on, and the RF transmitter is powered and starts to transmit the RF signal.
  • the main control chip stops outputting the GPIO signal, so that the UFI device re-executes the charging and starting, that is, the UFI device does not transmit the radio frequency signal when the charging is turned on, but can display the current battery power.
  • the boot control unit specifically includes: a filter circuit configured to filter out pulses of the control signal.
  • the filter circuit specifically includes: a resistor R1 and a capacitor C1; wherein, R1 is connected Between the base of M2 and the GPIO signal; one end of C1 is connected between the bases of R1 and M2, and the other end is grounded. R1 and C1 implement an RC filtering function.
  • a voltage dividing circuit can be added to the power-on control unit to further reduce the pulse peak of the GPIO signal, and the voltage dividing circuit specifically includes: resistors R2, R3, and 4;
  • R2 is connected between R1 and the GPIO signal, and the other end is grounded;
  • R3 is connected between the bases of 1 and M2;
  • one end of 4 is connected between the bases of 3 and M2, and the other is One end is grounded.
  • a resistor R5 can be added to configure the external power supply to step down, so that the external power supply can meet the UFI device usage standards.
  • the UFI device of the embodiment of the present invention performs charging by the power management chip that recognizes only one potential (ie, the control signal of the second potential of the embodiment of the present invention) through a very simple passive structure startup control unit. Power on and button up function. As a result, the manufacturing costs of UFI devices are greatly reduced.
  • an embodiment of the present invention further provides a method for booting a mobile hotspot UFI device, where the boot control method includes:
  • Step 1 When an external power supply charges the battery of the UFI device, it detects whether the main control chip of the UFI device outputs a GPIO signal;
  • Step 2 if the main control chip does not output a GPIO signal, the external power source is caused to flow into the control signal of the power management chip of the UFI device, so that the control signal changes from the first potential to the second potential, thereby enabling the power management chip Controlling the battery power supply; wherein, the hardware that is powered by the battery includes at least the main control chip;
  • Step 3 If the main control chip outputs the GPIO signal, stop flowing the external power source to the control signal, so that the control signal is restored to the first potential by the second potential.
  • booting method of this embodiment corresponds to the UFI device of the embodiment of the present invention, and the UFI The technical effect that the device can achieve, this method can also be achieved.

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  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Power Engineering (AREA)
  • Charge And Discharge Circuits For Batteries Or The Like (AREA)
  • Secondary Cells (AREA)
  • Telephone Function (AREA)

Abstract

本发明实施例提供一种移动热点UFI设备及开机方法。UFI设备包括电池、主控芯片、电源管理芯片、开机控制单元;电源管理芯片由内部提供一处于第一电位的控制信号,且在控制信号为第二电位时,电源管理芯片控制电池为UFI设备的硬件供电;得到所述电池供电的硬件至少包括主控芯片;开机控制单元的输入端接入对电池充电的外部电源,输出端与控制信号连接,控制端接入主控芯片输出的GPIO信号;当主控芯片没有输出GPIO信号时,开机控制单元使外部电源导通至控制信号,使控制信号由第一电位变化至第二电位;当主控芯片输出GPIO信号时,开机控制单元使外部电源与控制信号之间断开。

Description

一种移动热点 UFI设备及开机方法 技术领域
本发明涉及电路控制领域,特别是一种移动热点 UFI设备及开机方法。 背景技术
目前相对智能电子产品, 其功能多, 因此相应的硬件也多, 需要高性 能的电源管理芯片控制电池供电, 这些高性能的芯片基本上都可实现两种 开机方式: 一种是充电开机, 即手机关机后, 在进行充电时主动开机; 另 外一种是按键开机, 即开机键通过延时电路进行开机。 而对于移动热点 UFI 设备(即可携带路由器), 其主要功能就是发射射频信号, 其内部硬件少, 因此不需要高性能的电源管理芯片进行控制。为了节约成本, UFI设备一般 配置廉价的电源管理芯片, 即电源管理芯片只能识别一种电位的控制信号, 只用来实现按键开机即可。 但是为了增加 UFI设备的竟争力, 如何以一种 电位的控制信号实现充电开机, 又不对按键开机产生影响, 是需要解决的 技术难点。
此外, 需要给予说明的是, 电子设备的开机并不是通过电池有没有提 供电源来判断的, 而是通过主控芯片的是否工作判断的。 发明内容
为解决现有存在的技术问题, 本发明实施例提供一种移动热点 UFI设 备及开机方法。
本发明的实施例提供一种移动热点 UFI设备, 其包括有电池、 主控芯 片以及电源管理芯片; 所述电源管理芯片由内部提供一处于第一电位的控 制信号, 且在所述控制信号为第二电位时, 所述电源管理芯片控制所述电 池为 UFI设备的硬件供电; 其中, 得到所述电池供电的硬件至少包括所述 主控芯片; 其中, 所述 UFI设备还包括:
开机控制单元, 其输入端接入对所述电池充电的外部电源, 其输出端 与所述控制信号连接, 其控制端接入所述主控芯片输出的通用输入输出 ( GPIO, General Purpose Input Output )信号; 当所述主控芯片没有输出所 述 GPIO信号时, 所述开机控制单元使所述外部电源导通至所述控制信号, 使得所述控制信号由第一电位变化至第二电位; 当所述主控芯片输出所述 GPIO 信号时, 所述开机控制单元使所述外部电源与所述控制信号之间断 开。
本发明的实施例还提供一种移动热点 UFI设备的开机方法, 包括: 当有外接电源对 UFI设备的电池进行充电时, 检测 UFI设备的主控芯 片是否输出 GPIO信号;
若所述主控芯片没有输出 GPIO信号, 则将外接电源引入至 UFI设备 的电源管理芯片的控制信号, 使得所述控制信号由第一电位变化至第二电 位, 从而使电源管理芯片控制所述电池供电; 其中, 得到所述电池供电的 硬件至少包括所述主控芯片;
若主控芯片输出所述 GPIO信号,则停止将所述外接电源引入至所述控 制信号, 使得所述控制信号由第二电位恢复到第一电位。
本发明实施例的上述方案具有如下有益效果:
本发明实施例的开机控制单元能够根据 UFI设备的主控芯片所输出 GPIO信号, 来判断 UFI设备是否开机, 即 UFI在关机状态下, 主控芯片由 于没有工作, 所以不会输出 GPIO信号。 此时若有外接电源对电池充电, 则 利用外接电源来驱动电源管理芯片, 使得电源管理芯片控制电池向 UFI设 备的硬件供电, 这其中包括有主控芯片。 主控芯片得到供电后完成开机, 并开始输出 GPIO信号,开机控制单元根据 GPIO信号停止外接电源改变控 制信号电位, 使得控制信号恢复到第一电位, 即电源管理芯片又回置到待 命状态, 从而保证了在此之后, 电源管理芯片也能够被开关按键的控制。 由于 UFI设备的开关键也可以利用第二电位的控制信号驱动电源管理芯片, 使得电源管理芯片控制电池供电, 所以本发明实施例的 UFI设备可以釆用 一个只能识别一种电位信号的廉价电源管理芯片, 从而降低了 UFI设备的 成本。 附图说明
图 1为本发明实施例的 UFI设备的结构示意图;
图 2为本发明实施例的开机控制单元的结构示意图;
图 3为本发明实施例的 UFI设备的开机方法的步骤示意图。 具体实施方式
为使本发明实施例要解决的技术问题、 技术方案和优点更加清楚, 下 面将结合附图及具体实施例进行详细描述。
本发明实施例的能提一种移动热点 UFI设备的开机控制方法, 能够利 用功能简单、 成本低廉的芯片实现充电开机功能, 且不与 UFI设备的开关 机按键冲突。
如图 1所示, 一种移动热点 UFI设备, 其包括有电池、 主控芯片以及 电源管理芯片; 所述电源管理芯片由内部提供一处于第一电位的控制信号, 且在所述控制信号为第二电位时, 所述电源管理芯片控制所述电池为 UFI 设备的硬件供电; 其中, 得到所述电池供电的硬件至少包括所述主控芯片; 所述 UFI设备还包括:
开机控制单元, 其输入端接入对所述电池充电的外部电源, 其输出端 与所述控制信号连接,其控制端接入所述主控芯片输出的 GPIO信号; 当所 述主控芯片没有输出所述 GPIO信号时,所述开机控制单元使所述外部电源 导通至所述控制信号, 使得所述控制信号由第一电位变化至第二电位; 当 所述主控芯片输出所述 GPIO信号时,所述开机控制单元使所述外部电源与 所述控制信号之间断开。
本发明实施例的开机控制单元能够根据 UFI设备的主控芯片所输出 GPIO信号, 来判断 UFI设备是否开机, 即 UFI在关机状态下, 主控芯片由 于没有工作, 所以不会输出 GPIO信号。 此时若有外接电源对电池充电, 则 利用外接电源来驱动电源管理芯片, 使得电源管理芯片控制电池向 UFI设 备的硬件供电, 这其中包括有主控芯片。 主控芯片得到供电后完成开机, 并开始输出 GPIO信号,开机控制单元根据 GPIO信号停止外接电源改变控 制信号电位, 使得控制信号恢复到第一电位, 即电源管理芯片又回置到待 命状态, 从而保证了在此之后, 电源管理芯片也能够被开关按键的控制。 由于 UFI设备的开关键也可以利用第二电位的控制信号驱动电源管理芯片, 使得电源管理芯片控制电池供电, 所以本发明实施例的 UFI设备可以釆用 一个只能识别一种电位信号的廉价电源管理芯片, 从而降低了 UFI设备的 成本。
具体地, UFI设备既然作为一个热点, 必然包括有射频发射器(如图 1 所示)。 在正常工作过程中 (即发射射频信号), 用户可以通过屏幕显示或 者信号灯等方式判断电池的电量(屏幕和信号灯未在图 1中出现)。 在电池 没电关机后, 用户对 UFI设备进行充电时, 往往也要看到 UFI设备冲上多 少电量。 但结合 UFI设备自身的应用特点, 在充电时, 绝大部分用户并不 需要 UFI设备的射频发射器工作(即提供无线网), 因为 UFI设备本身就是 一个可携带的移动热点, 如果在充电位置的附近需要热点提供无线网, 那 么完全可以由一个固定路由器满足。 所以, 充电开机时电池的供电对象除 了主控芯片外, 还可以优选包括: 能够提示电量的硬件, 而射频发射器则 可以不作为充电开机的供电对象。 相对于充电开机, 按键开机的供电对象 除了主控芯片外, 还包括: 射频发射器。
需要说明的是,上述供电对象是根据 UFI设备的一个使用环境来确定。 在此之外, 还可根据 UFI设备中的硬件、 功能、 耗电量等因素来确定充电 开机的供电对象以及按键开机的供电对象。 本发明实施例的目的并不是供 电对象的确定方法, 而是提供一种能利用一个电位的控制信号实现不同种 供电方式的 UFI设备(即按键开机对应的硬件供电以及充电开机对应的硬 件供电), 因此, 在下面介绍具体的实现方式时, 并不对供电对象到底都包 括了什么硬件进行说明。
还是如图 1所示, 本发明实施例的 UFI设备还包括:
开关按键; 其中, 所述按键在被按压时, 使所述控制信号由第一电位 变化至第二电位; 当然, 作为本领域公知的技术, 开关按键是通过一个逻 辑延时电路与控制信号连接, 从而在开关按键按压后并达到一定时间, 控 制信号才会从第一电位逐渐变化至第二电位;
所述电源管理芯片具体包括:
检测单元, 配置为检测所搜控制信号由第一电位变化至第二电位的时 间, 生成检测结果;
存储单元, 配置为记录第一时间范围对应的第一控制指令以及第二时 间范围对应的第二控制指令; 其中, 外部电源使所述控制信号由第一电位 变化至第二电位的时间属于第一时间范围; 所述开关按键使所述控制信号 由第一电位变化至第二电位的时间属于第二时间范围; 第一时间范围与第 二时间范围互不相交; 第一控制指令配置为使所述电池为第一预设供电对 象提供电源, 第二控制指令配置为使所述电池为第二预设供电对象提供电 源; 第一预设供电对象以及第二预设供电对象均属于 UFI设备中的硬件, 且第一预设供电对象以及第二预设供电对象至少包括所述主控单元;
确定单元, 配置为确定所述检测结果属于第一时间范围还是第二时间 范围, 生成确定结果;
执行单元, 配置为根据确定结果执行第一控制指令或第二控制指令。 需要说明的是, 为了描述的方便, 描述电源管理芯片是以功能分为各 种单元分别描述。 当然, 在实施本发明实施例时可以把各单元的功能在同 一个或多个软件中实现。
在本实施例中, 通过改变存储单元内部的控制指令, 可对供电对象进 行调整。
如图 2所示, 开机控制单元由 MOS管 Ml 以及三极管 M2组成; Ml 的栅极分别与所述外接电源以及 M2的集电极连接,其漏极接地,其源极与 所述控制信号连接; M2的发射极接地, 其基极与所述主控芯片的 GPIO连 接, 配置为接入所述控制信号;
其中, 所述外接电源能够使 Ml导通,使 Ml将所述控制信号由第一电 位拉低至第二电位; 所述 GPIO信号能够使 M2导通、 Ml截止, 从而使所 述控制信号维持在待命状态下的第一电位。
下面再结合图 1对图 3所示的开机控制单元进行详细描述:
控制信号在平常情况下会被电源管理芯片维持在第一电位。
<情景 1>, 如果有外部电源接入, 且控制芯片输出 GPIO信号, 则说明 UFI设备已经处于开机状态(即主控芯片工作并输出 GPIO信号),此时 GPIO 信号将 M2导通, 使其集电极为低, 从而使 Ml截止, 控制信号依然在第一 电位, UFI设备还是保持在开机状态。
<情景 2>, 如果有外部电源接入, 控制芯片没有输出 GPIO信号, 则说 明 UFI设备已经处于关机状态, 此时外部电源直接将 Ml导通, 控制信号 从第一电位被拉低至第二电位。 电源管理芯片通过检测控制信号由第一电 位变化至第二电位的时间, 确认出是按键开机后, 开始执行充电开机流程 (即上文所述的第一控制指令), 控制电池给第一预设供电对象供电。 <情景 3>, 如果没有检测到外部电源接入, 若开关按键被按下, 使控制 信号由第一电位变化至第二电位。 电源管理芯片通过检测控制信号由第一 电位变化至第二电位的时间, 确认出是按键开机后, 开始执行按键开机流 程(即上文所述的第二控制指令), 控制电池给第二预设供电对象供电。 开 机后主控芯片输出 GPIO信号。 当按键松开, 控制信号重新被拉高, 此时的 状态与 <情景 1>一致。
下面以一个具体实施例对上述<情景 1>、 <情景 2>以及 <情景 3>能够实 现的功能进行介绍:
假设本发明实施例的 UFI设备具有一个显示屏, 在充电开机时的第一 供电对象为主控芯片和显示屏, 在按键开机时的第二供电对象为主控芯片 和显示屏以及射频发射器。 当 UFI设备在没电时接入外接电源进行充电, UFI设备执行充电开机,此时主控芯片和显示屏得到供电。主控芯片控制显 示屏显示 UFI设备的当前电量。 在这之后, 若用户按压开机按键时, UFI 设备执行按键开机, 此时射频发射器得到供电, 开始发射射频信号。 当然, 在用户继续按压开机按键使 UFI设备关机(开机按键关闭 UFI设备为现有 技术)。 此后在充电状态下, 主控芯片停止输出 GPIO信号, 使得 UFI设备 重新执行充电开机, 即充电开机状态下 UFI设备不会发射射频信号, 但可 以显示当前电池的电量。
由于主控芯片输出的 GPIO信号能够导通 M2, 使 Ml截止, 进而使控 制信号处于第一电位, 所以 UFI设备处于关机的过程中, 因尽可避免主控 芯片的不稳定输出对电源管理芯片造成影响。 即 UFI设备在关机的过程中, GPIO信号产生脉冲会使控制信号的电压恢复到第一电位, 造成关机失败。 为避免该情况出现, 开机控制单元具体还包括: 滤波电路, 配置为过滤掉 所述控制信号的脉冲。
具体地, 所述滤波电路具体包括: 电阻 Rl、 电容 C1 ; 其中, R1接在 M2的基极与 GPIO信号之间; C1一端接在 R1与 M2的基极之间, 另一端 接地。 R1和 C1实现一个 RC滤波功能。
当然, 在上述实施例的基础上, 还可为开机控制单元加入一个分压电 路, 能够进一步将 GPIO信号的脉冲波峰降低, 该分压电路具体包括: 电阻 R2、 R3、 4;
其中, R2的一端接在 R1与所述 GPIO信号之间, 其另一端接地; R3 接入在 1与 M2的基极之间; 4的一端接在 3与 M2的基极之间, 其另 一端接地。
此外, 在具体的电路实现中, 可加入一个电阻 R5, 配置为对外部电源 进行降压, 使外部电源能够符合 UFI设备的使用标准。
综上所述, 本发明实施例的 UFI设备通过一个十分简单的无源结构的 开机控制单元, 使只识别一个电位(即本发明实施例的第二电位的控制信 号)的电源管理芯片完成充电开机和按键开机功能。 因此, 极大降低了 UFI 设备的制造成本。
此外, 如图 3 所示, 本发明实施例的实施例还提供一种移动热点 UFI 设备的开机方法, 所述开机控制方法包括:
步骤 1, 当有外接电源对 UFI设备的电池进行充电时, 检测 UFI设备 的主控芯片是否输出 GPIO信号;
步骤 2, 若所述主控芯片没有输出 GPIO信号, 则使外接电源流入至 UFI设备的电源管理芯片的控制信号,使得所述控制信号由第一电位变化至 第二电位, 从而使电源管理芯片控制所述电池供电; 其中, 得到所述电池 供电的硬件至少包括所述主控芯片;
步骤 3, 若主控芯片输出所述 GPIO信号, 则停止将所述外接电源流入 至所述控制信号, 使得所述控制信号由第二电位恢复到第一电位。
显然本实施例的开机方法与本发明实施例的 UFI设备相对应, 该 UFI 设备能够达到的技术效果, 本方法同样也能达到。
以上所述是本发明的优选实施方式, 应当指出, 对于本技术领域的普 通技术人员来说, 在不脱离本发明所述原理的前提下, 还可以作出若干改 进和润饰, 这些改进和润饰也应视为本发明的保护范围。

Claims

权利要求书
1. 一种移动热点 UFI设备, 包括电池、 主控芯片以及电源管理芯片; 所述电源管理芯片由内部提供一处于第一电位的控制信号, 且在所述控制 信号为第二电位时, 所述电源管理芯片控制所述电池为 UFI设备的硬件供 电; 其中, 得到所述电池供电的硬件至少包括所述主控芯片; 其中, 所述 UFI设备还包括:
开机控制单元, 其输入端接入对所述电池充电的外部电源, 其输出端 与所述控制信号连接, 其控制端接入所述主控芯片输出的通用输入输出 GPIO信号; 当所述主控芯片没有输出所述 GPIO信号时, 所述开机控制单 元使所述外部电源导通至所述控制信号, 使得所述控制信号由第一电位变 化至第二电位; 当所述主控芯片输出所述 GPIO信号时,所述开机控制单元 使所述外部电源与所述控制信号之间断开。
2. 根据权利要求 1所述的 UFI设备, 其中, 所述 UFI设备还包括: 开 关按键; 其中, 所述开关按键在被按压时, 使所述控制信号由第一电位变 化至第二电位;
所述电源管理芯片包括:
检测单元, 配置为检测所搜控制信号由第一电位变化至第二电位的时 间, 生成检测结果;
存储单元, 配置为记录第一时间范围对应的第一控制指令以及第二时 间范围对应的第二控制指令; 其中, 外部电源使所述控制信号由第一电位 变化至第二电位的时间属于第一时间范围; 所述开关按键使所述控制信号 由第一电位变化至第二电位的时间属于第二时间范围; 第一时间范围与第 二时间范围互不相交; 第一控制指令配置为使所述电池为第一预设供电对 象提供电源, 第二控制指令配置为使所述电池为第二预设供电对象提供电 源; 第一预设供电对象以及第二预设供电对象均属于 UFI设备中的硬件, 且第一预设供电对象以及第二预设供电对象至少包括所述主控单元; 确定单元, 配置为确定所述检测结果属于第一时间范围还是第二时间 范围, 生成确定结果;
执行单元, 配置为根据确定结果执行第一控制指令或第二控制指令。
3. 根据权利要求 2所述的 UFI设备, 其中, 所述开机控制单元具体包 括:
MOS管 Ml以及三极管 M2; 其中, Ml的栅极分别与所述外接电源以 及 M2的集电极连接, 其漏极接地, 其源极与所述控制信号连接; M2的发 射极接地,其基极与所述主控芯片的 GPIO连接,配置为接入所述控制信号; 其中, 所述外接电源能偶导通 Ml导通,使 Ml将所述控制信号由第一 电位拉低至第二电位; 所述 GPIO信号能够使 M2导通、 Ml截止, 从而使 所述控制信号维持在第一电位。
4. 根据权利要求 2所述的 UFI设备,其中,所述开机控制单元还包括: 滤波电路, 配置为过滤掉所述控制信号的脉冲。
5. 根据权利要求 3所述的 UFI设备, 其中, 所述滤波电路包括: 电阻 Rl、 电容 C1 ; 其中, R1接在 M2的基极与 GPIO信号之间; C1一端接在 1与 M2的基极之间, 另一端接地。
6. 根据权利要求 4所述的 UFI设备,其中,所述开机控制单元还包括: 分压电路; 所述分压电路包括: 电阻 R2、 R3、 4;
其中, R2的一端接在 Rl与所述 GPIO信号之间, 其另一端接地; R3 接入在 1与 M2的基极之间; 4的一端接在 3与 M2的基极之间, 其另 一端接地。
7. 一种移动热点 UFI设备的开机方法, 包括:
当有外接电源对 UFI设备的电池进行充电时, 检测 UFI设备的主控芯 片是否输出 GPIO信号; 若所述主控芯片没有输出 GPIO信号, 则将外接电源引入至 UFI设备 的电源管理芯片的控制信号, 使得所述控制信号由第一电位变化至第二电 位, 从而使电源管理芯片控制所述电池供电; 其中, 得到所述电池供电的 硬件至少包括所述主控芯片;
若主控芯片输出所述 GPIO信号,则停止将所述外接电源引入至所述控 制信号, 使得所述控制信号由第二电位恢复到第一电位。
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