WO2016188314A1 - 一种电源管理的方法及投影设备、计算机存储介质 - Google Patents

一种电源管理的方法及投影设备、计算机存储介质 Download PDF

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Publication number
WO2016188314A1
WO2016188314A1 PCT/CN2016/081305 CN2016081305W WO2016188314A1 WO 2016188314 A1 WO2016188314 A1 WO 2016188314A1 CN 2016081305 W CN2016081305 W CN 2016081305W WO 2016188314 A1 WO2016188314 A1 WO 2016188314A1
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WIPO (PCT)
Prior art keywords
projection
voltage
projection device
state
power
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PCT/CN2016/081305
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English (en)
French (fr)
Inventor
杨倩
毛建华
Original Assignee
中兴通讯股份有限公司
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Priority claimed from CN201510677757.9A external-priority patent/CN106484069B/zh
Application filed by 中兴通讯股份有限公司 filed Critical 中兴通讯股份有限公司
Publication of WO2016188314A1 publication Critical patent/WO2016188314A1/zh

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    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06F—ELECTRIC DIGITAL DATA PROCESSING
    • G06F1/00—Details not covered by groups G06F3/00 - G06F13/00 and G06F21/00
    • G06F1/26—Power supply means, e.g. regulation thereof
    • G06F1/32—Means for saving power

Definitions

  • the present invention relates to the field of communications, and in particular, to a power management method, a projection device, and a computer storage medium.
  • the power saving method of the projection device existing on the market mainly adopts a plurality of ways to control the projection module under different light, so that the projection module can match different light brightness, thereby reducing the projection brightness under weak light, thereby Reducing power consumption also eases eye fatigue caused by long-term viewing of projections.
  • this solution simply reduces the power consumption of the terminal device under different light conditions, but in other environments, the terminal device still consumes less power, so the power consumption of the projection device cannot be effectively reduced.
  • embodiments of the present invention are directed to a power management method and a projection device, which are capable of effectively reducing power consumption of a projection device.
  • a method of power management, applied to a projection device comprising: detecting a projection state of the projection device; and adjusting an input voltage of the wireless communication module of the projection device according to the projection state.
  • the adjusting an input voltage of the wireless communication module of the projection device according to the projection state comprises: when the projection state is switched from a non-working state to an active state, inputting an input voltage of the wireless communication module by The first voltage is reduced to a second voltage.
  • the method further includes: detecting an input voltage of the wireless communication module as The received power and the transmit power at the second voltage are corresponding to the second received power and the second transmit power; respectively, the second received power and the preset received power threshold, the second transmit power, and the preset transmit Power thresholds are compared;
  • the transmit power is adjusted to the transmit power threshold.
  • the method further includes: detecting a wireless data transmission rate when the input voltage of the wireless communication module is a second voltage to obtain a second wireless data transmission rate; and comparing the second wireless data transmission rate with the And setting a wireless data transmission rate threshold; and when the second wireless data transmission rate is greater than the wireless data transmission rate threshold, adjusting the wireless data transmission rate to the wireless data transmission rate threshold.
  • the adjusting the input voltage of the wireless communication module of the device according to the projection state further comprises: inputting the input voltage of the wireless communication module when the projection state is switched from the working state to the non-working state The second voltage is raised to the first voltage.
  • the adjusting the input voltage of the wireless communication module of the projection device according to the projection state comprises: adjusting at least one of an input voltage of a radio frequency submodule and a WIFI submodule according to the projection state.
  • a projection device comprising:
  • a detecting module configured to detect a projection state of the projection device
  • a management module configured to adjust an input voltage of the wireless communication module of the projection device according to the projection state.
  • the management module is further configured to: when the projection state is switched from the non-working state to the working state, reduce the input voltage of the wireless communication module from the first voltage to the second voltage.
  • the management module is further configured to: detect a transmit power of the wireless communication module when the input voltage is a second voltage, and obtain a second wireless transmit and receive power; and send the second untransmitted power to the preset
  • the transmit and receive power thresholds are compared; when the second transmit and receive power is greater than the transmit and receive power threshold, the transmit and receive power is adjusted to the transmit and receive power threshold.
  • the management module is further configured to: detect a received power and a transmit power when the input voltage of the wireless communication module is a second voltage, and obtain a second received power and a second transmit power; respectively Receiving power and a preset received power threshold, wherein the second transmit power is compared with the preset transmit power threshold;
  • the transmit power is adjusted to the transmit power threshold.
  • the management module is further configured to: when the projection state is switched from the working state to the non-working state, increase an input voltage of the wireless communication module from the second voltage to the first voltage .
  • the management module is further configured to: adjust at least one of an input voltage of the radio frequency submodule and the WIFI submodule according to the projection state.
  • the detection module and the management module may use a central processing unit (CPU), a digital signal processor (DSP, Digital Singnal Processor), or a programmable logic array (FPGA, Field-Programmable Gate) when performing processing. Array) implementation.
  • CPU central processing unit
  • DSP digital signal processor
  • FPGA Field-Programmable Gate
  • Embodiments of the present invention also provide a computer storage medium in which computer executable instructions are stored, the computer executable instructions configuring a method of performing the power management described above.
  • Embodiments of the present invention provide a method for power management, which is applied to a projection device, the method comprising: detecting a projection state of the projection device; and adjusting the projection device according to the projection state The input voltage of the wireless communication module.
  • the uploading and downloading rate is lowered under the condition of the working state of the projection device, and the projection module is Restore the original uploading and downloading rate under non-working conditions, reduce the working power consumption of the projection device to a certain extent, extend the working time of the whole machine, and effectively control the heat of the projection device to ensure the maximum machine Various performances and extended working hours of the projection device.
  • FIG. 1 is a schematic flowchart diagram of a method for power management according to Embodiment 1 of the present invention
  • FIG. 2 is a schematic structural diagram of a projection device according to Embodiment 2 of the present invention.
  • FIG. 3 is a schematic structural diagram of another projection device according to Embodiment 2 of the present invention.
  • FIG. 4 is a schematic structural diagram of a projection apparatus according to Embodiment 3 of the present invention.
  • FIG. 5 is a schematic flowchart diagram of a method for power management according to Embodiment 3 of the present invention.
  • a projection state of the projection device is detected; and an input voltage of the wireless communication module is adjusted according to the projection state.
  • the embodiment provides a method for power management, which is applied to a projection device as shown in FIG. 1 , and the method includes:
  • the detection of the projection state detected by the projection device may be implemented by detecting a projection state of the projection module that performs the projection-related processing, and the projection state of the projection device includes the working state and Non-working status.
  • the projection switch of the projection device When the projection switch of the projection device is turned on, the projection device performs projection, and the projection device is in an operating state; when the projection switch of the projection device is turned off, the projection of the projection device is turned off, and the projection device is in a non-working state.
  • the projection function of the projection device can be controlled to be turned on and off by the projection switch of the projection device, and correspondingly, the projection state of the projection device is controlled to be in a working state and a non-working state.
  • the projection function of the projection device is turned on, the projection module is in a working state.
  • the projection function is turned off by pressing the projection switch, and the projection device is switched from the working state to the non-working state; when the projection function of the projection device is turned off, the projection device is turned off.
  • the projection function is turned on by the pressing of the projection switch, and the projection device is switched from the non-working state to the working state.
  • an interface is provided through the projection switch for the user to operate the projection function to realize the user's control of the projection function of the projection device.
  • the projection switch can be a hardware switch or a software switch, which is not limited in this embodiment of the present invention.
  • the projection state of the projection device is detected in S101, and when the projection state is switched between the active state and the non-operating state, the distribution of the input voltage of the wireless communication module by the power source is adjusted by S102.
  • the adjusting an input voltage of the wireless communication module of the projection device according to the projection state includes: when the projection state is switched from an inactive state to an active state, reducing an input voltage of the wireless communication module from a first voltage To the second voltage.
  • the received power and the transmit power when the input voltage of the wireless communication module is the second voltage is detected to obtain a corresponding second received power.
  • a second transmit power respectively comparing the second receive power and the preset receive power threshold, the second transmit power, and the preset transmit power threshold; when the second receive power is greater than the receive power And determining, by the threshold, the received power to the received power threshold; and when the second transmit power is greater than the transmit power threshold, adjusting the transmit power to the transmit power threshold.
  • the wireless data transmission rate when the input voltage of the wireless communication module is the second voltage is detected to obtain the second wireless data transmission. a rate; comparing the second wireless data transmission rate with the preset wireless data transmission rate threshold; and transmitting the wireless data when the second wireless data transmission rate is greater than the wireless data transmission rate threshold
  • the rate is adjusted to the wireless data transmission rate threshold.
  • the wireless data transmission rate threshold may be set by a user or according to a user's usage habit, and the wireless data transmission rate threshold is a minimum wireless data transmission rate value in a case where the wireless communication experience of the user is not affected.
  • the adjusting an input voltage of the projection module and the wireless communication module according to the projection state includes: when the projection state is switched from an active state to a non-working state, inputting an input voltage of the wireless communication module by the The second voltage is raised to the first voltage.
  • the input voltage of the projection module when the projection state is switched from the non-working state to the working state, the input voltage of the projection module is set to a first projection voltage; when the projection state is switched from the working state to the non-working state, The input voltage of the projection module is set to a second projection voltage, wherein the second projection voltage is smaller than the projection voltage.
  • the wireless communication module includes a radio frequency sub-module and a WIFI sub-module; and adjusting an input voltage of the wireless communication module of the projection device according to the projection state includes: adjusting an RF sub-module according to the projection state And at least one of the input voltages of the WIFI submodule.
  • the first voltage of the RF submodule and the first voltage of the WIFI submodule may be the same or different, and the second voltage of the RF submodule and the second voltage of the WIFI submodule may be the same or different.
  • the first voltage of the RF submodule is referred to as the first RF voltage
  • the second voltage of the RF submodule is referred to as the second RF voltage
  • the first voltage of the WIFI submodule is referred to as the first WIFI voltage
  • the second voltage of the WIFI sub-module is referred to as the second WIFI voltage.
  • the received power and the transmit power are correspondingly reduced, and the wireless data transmission rate is correspondingly reduced;
  • the RF submodule is When the receiving power of the input voltage is greater than the preset receiving power threshold of the radio frequency sub-module, the receiving power of the radio sub-module is reduced to the preset receiving power threshold of the radio sub-module, when the input of the radio sub-module is When the transmit power of the second RF voltage is greater than the preset transmit power threshold of the RF submodule, the emissivity of the RF submodule is lowered to a preset transmit power threshold of the RF submodule; when the input voltage of the RF submodule is When the wireless data transmission rate of the second RF voltage is greater than the preset wireless data transmission rate threshold of the RF submodule, the wireless data transmission rate of the RF submodule is reduced to a preset wireless data transmission rate threshold of the
  • the transmit power is correspondingly reduced, and the wireless data transmission rate is correspondingly reduced; when the input voltage of the WIFI sub-module is the second WIFI voltage.
  • the transmit power is greater than the preset transmit power threshold of the WIFI sub-module, the emissivity of the WIFI sub-module is reduced to a preset transmit power threshold of the WIFI sub-module.
  • setting the input voltage of the wireless communication module to the first voltage comprises: adjusting an input voltage of the RF submodule by the second RF voltage.
  • the first RF voltage; or the input voltage of the WIFI submodule is adjusted from the second WIFI voltage to the first WIFI voltage; or the input voltage of the RF submodule is simultaneously adjusted from the second RF voltage to the first RF voltage, and the WIFI sub is The input voltage of the module is adjusted by the second WIFI voltage to the first WIFI voltage.
  • the part of adjusting the distribution of the power supply according to the projection state may not be limited between the projection module and the wireless communication module, and may also include other functional realization parts of the projection device.
  • the projection device When the projection device is in the working state, the projection device may be guaranteed. The use of the input voltage is reduced, and the power consumption of the projection device is reduced as much as possible while the projection is being used.
  • the second embodiment of the present invention provides a projection device.
  • the method includes: a detection module 201, a management module 202, and a wireless communication module 203;
  • the detecting module 201 is configured to detect a projection state of the projection device
  • the management module 202 is configured to adjust an input voltage of the wireless communication module 203 according to a projection state.
  • the management module 202 is specifically configured to reduce the input voltage of the wireless communication module 203 from the first voltage to the second voltage when the projection state of the projection device is switched from the non-working state to the active state.
  • the management module 202 is further configured to: detect a received power and a transmit power when the input voltage of the wireless communication module is a second voltage, and obtain a second received power and a second transmit power; respectively a power and a preset received power threshold, the second transmit power being compared with the preset transmit power threshold; and when the second received power is greater than the receive power threshold, adjusting the received power to the receiving a power threshold; when the second transmit power is greater than the transmit power threshold, the transmit power is adjusted to the transmit power threshold.
  • the management module 202 is further configured to detect a wireless data transmission rate when the input voltage provided to the wireless communication module 203 is the second voltage, to obtain a second wireless data transmission rate; The data transmission rate is compared with the preset wireless data transmission rate threshold; when the second wireless data transmission rate is greater than the wireless data transmission rate threshold, the wireless data transmission rate is adjusted to the wireless data transmission Rate threshold.
  • the management module 202 is further configured to switch from the working state to the non-work when the projection state of the projection device is changed from the working state In the state, the input voltage of the wireless communication module 203 is raised from the second voltage to the first voltage.
  • the wireless communication module 203 includes a radio frequency sub-module 2031 and a WIFI sub-module 2032.
  • the management module 202 is specifically configured to be provided to the radio frequency sub-module 2031 according to the projection state adjustment. And at least one of the input voltages of the WIFI sub-module 2032.
  • the third embodiment of the present invention further describes a power management method according to an embodiment of the present invention.
  • a specific power management method is shown in FIG. 5 .
  • the projection device includes: a detection module 201, a management module 202, a projection module 404, a radio frequency sub-module 2031, and a WIFI sub-module 2032.
  • the power supply module 405, the button module 406, and other modules 407 (which may include a motor, a gyroscope, a camera, a storage module, etc.).
  • the detection module 201 can be implemented by a processor, which is a control processing part of the entire terminal, which controls the entire projection device so that it runs according to a certain logic, and also includes data processing, providing other clocks for running the module, etc. The important components and control core of the projection terminal.
  • the management module 202 (which can be implemented by the processor) controls the power supply of all modules of the projection device and is the power control hub of the projection device.
  • the projection module 404 includes a discharge lamp lighting device, an image display module, an image display interface, an image signal conversion portion, and the like, so that the projection device can project information that needs to be projected onto the screen through the image display module.
  • the RF sub-module 2031 is the main channel for data transmission and data transmission and reception of the entire system, and is mainly for providing a channel for data transmission and reception when the projection device is in normal communication.
  • the WIFI sub-module 2032 is a part that provides a WIFI function. The main function is to connect the WIFI signal when there is a WIFI network around, so that the projection device can have the WIFI function.
  • the power supply module 405 is an interface portion that the projection device obtains power from the outside, and mainly provides a channel for external power supply to enter the projection device.
  • the button module 406 mainly functions to provide a channel for human-computer interaction, and the user can operate the terminal device through the button module and switch the projection module.
  • the other module 407 is mainly a portion that the projection device does not need to be particularly used in implementing the power management method of the embodiment of the present invention.
  • the power supply module 405 provides an interface for external power supply input. Therefore, the current flows from the power supply module to the terminal.
  • the external power supply can be converted into the power supply re-supply management module 202 and the detection module 201 that are available to the terminal through the charge management module in other modules. After the step-down, the management module 202 and the detection module 201 are supplied.
  • the method includes:
  • the projection device detects a current projection state of the projection device.
  • the projection function of the projection module When the projection function of the projection module is turned on, the projection device is in an active state, the input voltage of the projection module is set to a first projection voltage, and the input voltage of the wireless communication module is set to a second state. Voltage, enter S502; when the projection function of the projection module is off, the projection device is in a non-operating state, the input voltage of the projection module is set to a second projection voltage, the input voltage of the wireless communication module is set to a first voltage, and S503 is performed;
  • the input voltage that supplies the power supply module to the projection module is set to a second projection voltage, and an input voltage that supplies the power supply module to the wireless communication module is raised from the second voltage to the first voltage.
  • the detecting module notifies the management module to increase the input voltage of the radio sub-module and the WIFI sub-module, thereby increasing the transceiving power of the radio sub-module at this time, increasing the receiving power of the WIFI sub-module at this time, and improving the radio sub-module and the WIFI.
  • the wireless data transfer rate of the submodule is notifies the management module to increase the input voltage of the radio sub-module and the WIFI sub-module, thereby increasing the transceiving power of the radio sub-module at this time, increasing the receiving power of the WIFI sub-module at this time, and improving the radio sub-module and the WIFI.
  • the input voltage that is provided by the power supply module to the projection module is set to a first projection voltage, and an input voltage that is provided by the power supply module to the wireless communication module is reduced from a first voltage to a second voltage.
  • the detecting module notifies the management module to reduce the input voltage of the RF submodule and the WIFI submodule, thereby reducing the transmit and receive power of the RF submodule at this time, and reducing the received power of the WIFI submodule at this time.
  • the current wireless data transmission rate is obtained and compared with a preset wireless data transmission rate threshold, when the current wireless data transmission rate is greater than a preset wireless data transmission rate threshold.
  • the software executes to reduce the current wireless data transmission rate to a preset wireless data transmission rate threshold.
  • the detecting module of the projection device detects in real time whether the button module receives the button signal of the user to determine whether the current projection state changes; when detecting that the button module receives the button signal , to determine if the projection state has changed.
  • the control form of the button signal to the projection function includes two types:
  • buttons signal and closing the button signal respectively controlling the projection state by an open button signal indicating that the projection function is turned on and a closing button signal indicating that the projection function is turned off; specifically, in S502, when the open button signal is received, the current projection is The state does not change.
  • the close button signal when the close button signal is received, the current projection state is switched from the working state to the non-working state; in S503, when the open button signal is received, the current projection state is switched from the non-working state to the only working state, when receiving When the button signal is turned off, the current projection status does not change.
  • Switching signal when the switching state is received when the current projection state is the working state, the current projection state is switched. Specifically, in S502, when the switching signal is received, the current projection state is operated. The state is switched to the non-working state; in S503, when the switching signal is received, the current projection state is switched from the non-working state to the working state.
  • the power management method and the projection device provided by the embodiments of the present invention reduce the wireless data transmission rate when the projection state of the projection device is the working state, the download speed is reduced, and the wireless data transmission rate is when the projection device is in the non-working state.
  • Recovery the download speed will be restored, and the operating current of the whole machine will not be too large regardless of whether the projection device works or not, avoiding the battery voltage being rapidly reduced due to excessive current during the projection and non-projection downloading process.
  • Shut down It also avoids the problem of heating the whole machine caused by excessive working current.
  • the fourth embodiment of the present invention is a specific application of the power management method provided by the embodiment of the present invention.
  • the WIFI function When the user is using the projection device carrying the wireless hotspot function, the WIFI function is turned on, and the movie that he wants to watch is played online. At this time, the projection device is not projected, the projection state of the projection device is inactive, and the download rate is on average. 2Mbps, when the user presses the projection button switch, the projection state of the projection device is switched from the non-working state to the working state, the projection device projects the image on the screen, and the internal detection module detects that the projection device starts to work, and sends the image to the management module.
  • the control signal indicates that the input voltage of the radio frequency main chip (radio sub-module) and the WIFI chip (WIFI sub-module) is lowered, such as from a preset first voltage of 3.8V to a second voltage of 3.6V (due to the general radio frequency chip) And the lowest input voltage of the power amplifier, switch, WIFI chip and other chips of the RF circuit is about 3.6V, so reducing the voltage can also ensure the normal operation of the chip), while the RF chip and the WIFI chip will reduce the original data acquisition frequency, such as the original Collect 100 data in seconds, and now collect 20 data per second. At this time, the transmit power of the RF chip is reduced ( It needs to be determined according to different frequency bands.
  • the radio frequency chip is The transceiver power is reduced from the original 28dBm to 26dBm.
  • the RF chip's transmit and receive power is reduced from 26dBm to 19dBm.
  • the RF chip reduces the transmit and receive power to 19dBm of the minimum transmit power.
  • the GSM850 band can still work normally. Among them, 19dBm is the lowest RF power that can ensure the normal data transmission and reception of the RF chip.
  • the minimum RF power can be set by the user.
  • the wireless data transmission rate of the projection device is reduced, such as from the original 2 Mbps download rate to 500 Kbps.
  • 2 Mbps is the download rate when the movie is viewed before
  • 500 Kbps is the preset wireless data transmission rate threshold of the user, and the threshold can ensure that the basic services performed by the user, such as making a call, sending a text message, etc., are not affected.
  • RF voltage of the RF chip After the reduction, the download rate of the projection device is reduced from 2 Mbps to 1 Mbps. At this time, based on 1 Mbps greater than 500 Kbps, the download rate of the projection device is reduced by only 500 Kbps by the speed limit method, for example, the radio frequency is increased when the projection device is in the working state.
  • the time interval for the chip to send and receive data if the original rate is 5 seconds for sending and receiving 5 data, it is now down to 1 second for sending and receiving 3 data.
  • the original RF data transmission and reception time of the RF chip is restored and the data is transmitted and received for 5 seconds.
  • the specific speed limit mode of the embodiment of the present invention is not specifically limited.
  • the operating current of the projection device is 200 mA before the projection function of the projection device is turned on, the operating current of the projection device can still be about 200 mA after the projection function of the projection device is turned on while reducing the input voltage of the RF chip and the WIFI chip.
  • the projection state of the projection device is switched from the working state to the non-working state, and at this time, the radio frequency is restored due to the detection of the change of the projection state.
  • the normal input voltage of the chip and the WIFI chip is restored from 3.6V to 3.8V, and the RF chip and the WIFI chip also restore the original data acquisition frequency and transmission power.
  • the user can see that the current download rate is restored to an average of 2 Mbps. If the user turns on the projection function of the projection device during the downloading process, the power distribution adjustment process is performed again, and the download rate is again reduced to 500 Kbps.
  • the processor of the projection device detects the projection state of the projection device by using the method of the embodiment of the invention, and reduces the input voltage of the radio frequency chip and the WIFI chip when the projection state of the projection device is switched from the non-working state to the working state.
  • the radio frequency chip transceiver power and the WIFI chip transmit power are reduced, and the radio data transmission rate of the radio frequency chip and the WIFI chip is reduced; when the radio frequency chip transceiver power and the WIFI chip transmit power decrease do not reach the preset transmit and receive power threshold, further pass The configuration of the parameter configuration reduces the transmit power of the radio frequency chip and the transmit power of the WIFI chip to a preset transmit power threshold; when the wireless data transmission rate of the radio frequency chip and the WIFI chip does not decrease to a preset wireless data transmission rate threshold, the pass limit Speed down the wireless data transmission rate of the RF chip and the WIFI chip to a preset wireless data transmission rate threshold, thereby In the case of projection by the projection device, the operating current of the projection device is consistent with the operating current when the projection device is not projected, thereby avoiding the problem of heat generation of the whole machine due to excessive operating current.
  • Embodiments of the present invention also provide a computer storage medium in which computer executable instructions are stored, the computer executable instructions configuring a method of performing the power management described above.
  • the integrated modules described in the embodiments of the present invention may also be stored in a computer readable storage medium if they are implemented in the form of software functional modules and sold or used as separate products. Based on such understanding, the technical solution of the embodiments of the present invention may be embodied in the form of a software product in essence or in the form of a software product stored in a storage medium, including a plurality of instructions.
  • a computer device (which may be a personal computer, server, or network device, etc.) is caused to perform all or part of the methods described in various embodiments of the present invention.
  • the foregoing storage medium includes: a U disk, a mobile hard disk, a read-only memory (ROM), a random access memory (RAM), a magnetic disk, or an optical disk, and the like. .
  • embodiments of the invention are not limited to any specific combination of hardware and software.
  • the power management scheme of the embodiment of the present invention includes: detecting a projection state of the projection device; and adjusting an input voltage of the wireless communication module of the projection device according to the projection state.
  • the uploading and downloading rate is lowered under the condition of the working state of the projection device, and the projection module is Restore the original uploading and downloading rate under non-working conditions, reduce the working power consumption of the projection device to a certain extent, extend the working time of the whole machine, and effectively control the heat of the projection device to ensure the maximum machine Various performances and extended working hours of the projection device.

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Abstract

一种电源管理的方法及投影设备、计算机存储介质，应用于投影设备，所述方法包括：检测所述投影设备的投影状态；根据所述投影状态调节所述投影设备的无线通信模块的输入电压。

Description

一种电源管理的方法及投影设备、计算机存储介质 技术领域
本发明涉及通信领域，尤其涉及一种电源管理的方法及投影设备、计算机存储介质。
背景技术
目前市场上存在的投影设备的节电方法，主要采用的是在不同光线下通过多种方式对投影模块进行控制，使投影模块能匹配不同的光线亮度，进而在弱光线下降低投影亮度，从而降低功耗的同时也使缓解用户长时间看投影造成的眼睛疲劳。然而这种方案只是简单的在不同光线的条件下降低了终端设备的功耗，但是在其他环境下该终端设备依然功耗不减,所以无法有效的减少投影设备的功耗。
发明内容
有鉴于此，本发明实施例希望提供一种电源管理的方法及投影设备，计算机存储介质，能够有效的减少投影设备的功耗。
本发明实施例的技术方案是这样实现的：
一种电源管理的方法，应用于投影设备，所述方法包括：检测所述投影设备的投影状态；根据所述投影状态调节所述投影设备的无线通信模块的输入电压。
上述方案中，所述根据所述投影状态调节所述投影设备的无线通信模块的输入电压包括：当所述投影状态由非工作状态切换为工作状态时，将所述无线通信模块的输入电压由第一电压降低至第二电压。
上述方案中，所述方法还包括：检测所述无线通信模块的输入电压为 第二电压时的接收功率和发射功率得到对应的第二接收功率和第二发射功率；分别将所述第二接收功率和预设的接收功率阈值，第二发射功率与所述预设的发射功率阈值进行比较；
当所述第二接收功率大于所述接收功率阈值时，将所述接收功率调整为所述接收功率阈值；
当所述第二发射功率大于所述发射功率阈值时，将所述发射功率调整为所述发射功率阈值。
上述方案中，所述方法还包括：检测所述无线通信模块的输入电压为第二电压时的无线数据传输速率得到第二无线数据传输速率；将所述第二无线数据传输速率与所述预设的无线数据传输速率阈值进行比较；当所述第二无线数据传输速率大于所述无线数据传输速率阈值时，将所述无线数据传输速率调整为所述无线数据传输速率阈值。
上述方案中，所述根据所述投影状态调节所述投设备的无线通信模块的输入电压还包括：当所述投影状态由工作状态切换为非工作状态时，将所述无线通信模块的输入电压由所述第二电压升高至所述第一电压。
其中，所述根据所述投影状态调节所述投影设备的所述无线通信模块的输入电压包括：根据所述投影状态调整射频子模块和WIFI子模块的输入电压中的至少一种。
一种投影设备，包括：
检测模块，配置为检测所述投影设备的投影状态；
管理模块，配置为根据所述投影状态调节所述投影设备的无线通信模块的输入电压。
上述方案中，所述管理模块还配置为：当所述投影状态由非工作状态切换为工作状态时，将所述无线通信模块的输入电压由第一电压降低至第二电压。
上述方案中，所述管理模块还配置为：检测所述无线通信模块的输入电压为第二电压时的收发功率得到第二无线收发功率；将所述第二无收发功率与所述预设的收发功率阈值进行比较；当所述第二收发功率大于所述收发功率阈值时，将所述收发功率调整为所述收发功率阈值。
上述方案中，所述管理模块还配置为：检测所述无线通信模块的输入电压为第二电压时的接收功率和发射功率得到对应的第二接收功率和第二发射功率；分别将所述第二接收功率和预设的接收功率阈值，第二发射功率与所述预设的发射功率阈值进行比较；
当所述第二接收功率大于所述接收功率阈值时，将所述接收功率调整为所述接收功率阈值；
当所述第二发射功率大于所述发射功率阈值时，将所述发射功率调整为所述发射功率阈值。
上述方案中，所述管理模块还配置为：当所述投影状态由工作状态切换为非工作状态时，将所述无线通信模块的输入电压由所述第二电压升高至所述第一电压。
上述方案中，所述管理模块还配置为：根据所述投影状态调整射频子模块和WIFI子模块的输入电压中的至少一种。
所述检测模块、所述管理模块在执行处理时，可以采用中央处理器(CPU，Central Processing Unit)、数字信号处理器(DSP，Digital Singnal Processor)或可编程逻辑阵列(FPGA，Field－Programmable Gate Array)实现。
本发明实施例还提供一种计算机存储介质，其中存储有计算机可执行指令，该计算机可执行指令配置执行上述电源管理的方法。
本发明实施例提供一种电源管理的方法，应用于投影设备，所述方法包括：检测所述投影设备的投影状态；根据所述投影状态调节所述投影设 备的无线通信模块的输入电压。通过对整个投影设备的投影状态进行检测，通过调整无线通信模块的输入电压对投影设备的上传和下载速率进行控制，在投影设备工作状态的条件下降低此时上传和下载速率，并且在投影模块为非工作的条件下恢复原来的上传和下载速率，达到在一定程度上减小投影设备的工作功耗，延长整机的工作时间，并且有效的控制投影设备的发热，最大程度保证了整机的各种性能并延长了投影设备的工作时间。
附图说明
图1为本发明实施例一提供的一种电源管理的方法的流程示意图；
图2为本发明实施例二提供的一种投影设备的结构示意图；
图3为本发明实施例二提供的另一种投影设备的结构示意图；
图4为本发明实施例三提供的一种投影设备的结构示意图；
图5为本发明实施例三提供的一种电源管理的方法的流程示意图。
具体实施方式
下面结合附图对技术方案的实施作进一步的详细描述。
本发明实施例中，在具有无线通信模块的投影设备中，检测所述投影设备的投影状态；根据所述投影状态调节所述无线通信模块的输入电压。
实施例一
本实施例提供一种电源管理的方法，应用于投影设备如图1所示，该方法包括：
S101，检测所述投影设备的投影状态；
S102，根据所述投影状态调节所述投影设备的无线通信模块的输入电压。
在S101中，投影设备检测的投影状态的检测可通过检测其执行投影相关处理的投影模块的投影状态实现，投影设备的投影状态包括工作状态和 非工作状态。当投影设备的投影开关开启时，投影设备进行投影，投影设备处于工作状态；当投影设备的投影开关关闭时，投影设备的投影关闭，投影设备处于非工作状态。
通过投影设备的投影开关可控制投影设备的投影功能的开启和关闭，对应的，控制投影设备的投影状态处于工作状态和非工作状态。当投影设备的投影功能开启时，投影模块处于工作状态，此时，通过投影开关的按压，关闭投影功能，投影设备由工作状态切换为非工作状态；当投影设备的投影功能关闭时，投影设备处于非工作状态，此时，通过投影开关的按压，开启投影功能，投影设备由非工作状态切换为工作状态。这里，通过投影开关提供接口供用户对投影功能的操作，以实现用户对投影设备的投影功能的控制。投影开关可为硬件开关，也可为软件开关，本发明实施例对此不做限制。
在S101中检测到投影设备的投影状态，在投影状态在工作状态和非工作状态之间发生切换时，通过S102实现电源对无线通信模块的输入电压的分配进行调整。
所述根据所述投影状态调节所述投影设备的无线通信模块的输入电压包括：当所述投影状态由非工作状态切换为工作状态时，将所述无线通信模块的输入电压由第一电压降低至第二电压。
在本发明实施例一实施方式中，当无线通信模块的输入电压为第二电压时，检测所述无线通信模块的输入电压为第二电压时的接收功率和发射功率得到对应的第二接收功率和第二发射功率；分别将所述第二接收功率和预设的接收功率阈值，第二发射功率与所述预设的发射功率阈值进行比较；当所述第二接收功率大于所述接收功率阈值时，将所述接收功率调整为所述接收功率阈值；当所述第二发射功率大于所述发射功率阈值时，将所述发射功率调整为所述发射功率阈值。
在本发明实施例一实施方式中，当将无线通信模块的输入电压降低为第二电压时，检测所述无线通信模块的输入电压为第二电压时的无线数据传输速率得到第二无线数据传输速率；将所述第二无线数据传输速率与所述预设的无线数据传输速率阈值进行比较；当所述第二无线数据传输速率大于所述无线数据传输速率阈值时，将所述无线数据传输速率调整为所述无线数据传输速率阈值。其中，无线数据传输速率阈值可由用户设置或根据用户的使用习惯得出，无线数据传输速率阈值为保证用户的无线通信体验不受影响的情况下的最低无线数据传输速率值。
所述根据所述投影状态调节所述投影模块和所述无线通信模块的输入电压包括：当所述投影状态由工作状态切换为非工作状态时，将所述无线通信模块的输入电压由所述第二电压升高至所述第一电压。
在本发明实施例一实施方式中，当投影状态由非工作状态切换为工作状态时，投影模块的输入电压设置为第一投影电压；当所述投影状态由工作状态切换为非工作状态时，投影模块的输入电压设置为第二投影电压，其中，第二投影电压小于所述投影电压。
在本发明实施例一实施方式中，无线通信模块包括射频子模块和WIFI子模块；根据所述投影状态调节所述投影设备的无线通信模块的输入电压包括：根据所述投影状态调整射频子模块和WIFI子模块的输入电压中的至少一种。
需要说明的是，射频子模块的第一电压和WIFI子模块的第一电压的大小可相同也可不同，射频子模块的第二电压和WIFI子模块的第二电压的大小可相同也可不同。为了更好的描述，这里将射频子模块的第一电压称为第一射频电压，射频子模块的第二电压称为第二射频电压，WIFI子模块的第一电压称为第一WIFI电压，WIFI子模块的第二电压称为第二WIFI电压。
在投影设备的投影状态由非工作状态切换为工作状态时，将无线通信 模块的输入电压由第一电压降低至第二电压包括：将射频子模块的输入电压由第一射频电压调整为第二射频电压；或将WIFI子模块的输入电压由第一WIFI电压调整为第二WIFI电压；或将射频子模块的输入电压由第一射频电压调整为第二射频电压，将WIFI子模块的输入电压由第一WIFI电压调整为第二WIFI电压。
在实际应用中，当射频子模块的输入电压由第一射频电压降低为第二射频电压时，其接收功率和发射功率相应的减小，无线数据传输速率相应的减小；当射频子模块的输入电压为第二射频电压时的接收功率大于射频子模块的预设的接收功率阈值时，将射频子模块的接收功率降低至射频子模块的预设的接收功率阈值，当射频子模块的输入电压为第二射频电压时的发射功率大于射频子模块的预设的发射功率阈值时，将射频子模块的发射率降低至射频子模块的预设的发射功率阈值；当射频子模块的输入电压为第二射频电压时的无线数据传输速率大于射频子模块的预设的无线数据传输速率阈值时，将射频子模块的无线数据传输速率降低至射频子模块的预设的无线数据传输速率阈值。当WIFI子模块的输入电压由第一WIFI电压降低为第二WIFI电压时，其发射功率相应的减小，无线数据传输速率相应的减小；当WIFI子模块的输入电压为第二WIFI电压时的发射功率大于WIFI子模块的预设的发射功率阈值时，将WIFI子模块的发射率降低至WIFI子模块的预设的发射功率阈值。
相应的，当所述投影设备的投影状态由工作状态切换为非工作状态时，将所述无线通信模块的输入电压设置为第一电压包括：将射频子模块的输入电压由第二射频电压调整为第一射频电压；或将WIFI子模块的输入电压由第二WIFI电压调整为第一WIFI电压；或同时将射频子模块的输入电压由第二射频电压调整为第一射频电压，将WIFI子模块的输入电压由第二WIFI电压调整为第一WIFI电压。
在实际应用中，根据投影状态调整供电的分配的部分可不局限在投影模块和无线通信模块之间，也可包括投影设备的其他功能实现部分，当投影设备为工作状态时，可在保证投影设备的使用不受影响的前提下，降低除投影模块以外的其他部分的输入电压，从而在进行投影的同时，尽可能的降低投影设备的功耗。
实施例二
为实现上述方法，本发明实施例二提供一种投影设备。如图2所示，包括：检测模块201、管理模块202和无线通信模块203；其中，
检测模块201，配置为检测所述投影设备的投影状态；
管理模块202，配置为根据投影状态调节无线通信模块203的输入电压。
管理模块202具体配置为当投影设备的投影状态由非工作状态切换为工作状态时，将无线通信模块203的输入电压由第一电压降低至第二电压。
优选的，管理模块202还配置为：检测所述无线通信模块的输入电压为第二电压时的接收功率和发射功率得到对应的第二接收功率和第二发射功率；分别将所述第二接收功率和预设的接收功率阈值，第二发射功率与所述预设的发射功率阈值进行比较；当所述第二接收功率大于所述接收功率阈值时，将所述接收功率调整为所述接收功率阈值；当所述第二发射功率大于所述发射功率阈值时，将所述发射功率调整为所述发射功率阈值。
在本发明实施例一实施方式中，管理模块202还配置为检测提供给无线通信模块203的输入电压为第二电压时的无线数据传输速率得到第二无线数据传输速率；将所述第二无线数据传输速率与所述预设的无线数据传输速率阈值进行比较；当所述第二无线数据传输速率大于所述无线数据传输速率阈值时，将所述无线数据传输速率调整为所述无线数据传输速率阈值。
管理模块202还配置为当投影设备的投影状态由工作状态切换为非工 作状态时，将无线通信模块203的输入电压由第二电压升高至第一电压。
在本发明实施例一实施方式中，如图3所示，无线通信模块203包括射频子模块2031和WIFI子模块2032；管理模块202，具体配置为根据所述投影状态调整提供给射频子模块2031和WIFI子模块2032的输入电压中的至少一种。
实施例三
本发明实施例三为本发明实施例提供的电源管理方法的进一步说明，具体的电源管理方法如图5所示。
在进行描述时，可通过图4所示的投影设备加以说明，如图4所示，该投影设备包括：检测模块201、管理模块202、投影模块404、射频子模块2031、WIFI子模块2032、供电模块405、按键模块406、以及其他模块407(可以包括马达、陀螺仪、摄像头、存储模块等)。
其中，检测模块201可由处理器实现，处理器是整个终端的控制处理部分，其控制整个投影设备，使得其按照一定的逻辑运行，还包括数据处理，提供其他所以模块运行的时钟等，是该投影终端的重要组成和控制核心。管理模块202(可由处理器实现)控制该投影设备所有模块的供电，是投影设备的动力控制枢纽。投影模块404包括放电灯点亮装置、图像显示模组、图像显示接口、图像信号变换部分等，使投影设备能够将需要投影的信息通过图像显示模组投影在幕布上。射频子模块2031是整个系统的数据传输、数据对外收发的主要通道，主要为当投影设备正常通讯时提供数据收发的通道。WIFI子模块2032是提供WIFI功能的部分，主要作用为当周围有WIFI网络时可以连接WIFI信号，使投影设备可以具备WIFI功能。供电模块405是该投影设备从外部获得供电的接口部分，其主要提供外部供电进入该投影设备的通道。按键模块406主要作用为提供人机交互的通道，用户可以为通过按键模块来操作该终端装置，并且开关投影模块。其 他模块407主要为投影设备在实现本发明实施例的电源管理方法中不需要特别使用到的部分。供电模块405提供外部供电输入的接口，因此电流从供电模块流向终端内部，可以通过其他模块中的充电管理模块将外部供电转化成终端可用的供电再供给管理模块202和检测模块201，也可以直接降压后供给管理模块202和检测模块201。
如图5所示，该方法包括：
S501、检测投影设备当前的投影状态；
具体的，投影设备检测投影设备当前的投影状态，当投影模块的投影功能打开时，投影设备为工作状态，投影模块的输入电压设置为第一投影电压，无线通信模块的输入电压设置为第二电压，进入S502；当投影模块的投影功能关闭时，投影设备为非工作状态，投影模块的输入电压设置为第二投影电压，无线通信模块的输入电压设置为第一电压，执行S503；
S502、检测当前是否由工作状态切换为非工作状态；是则执行S504，否则保持当前输入电压。
S503、检测当前是否由非作状态切换为工作状态；是则执行S505，否则保持当前供电状态。
S504、将供电模块提供给投影模块的输入电压设置为第二投影电压，将供电模块提供给无线通信模块的输入电压由所述第二电压升高至第一电压。
具体的，检测模块通知管理模块升高射频子模块和WIFI子模块的输入电压，从而升高射频子模块此时的收发功率，升高WIFI子模块此时的接收功率，提高射频子模块和WIFI子模块的无线数据传输速率。
S505、将供电模块提供给所述投影模块的输入电压设置为第一投影电压，将供电模块提供给所述无线通信模块的输入电压由第一电压降低至第二电压；
具体的，检测模块通知管理模块降低射频子模块和WIFI子模块的输入电压，从而降低射频子模块此时的收发功率，降低WIFI子模块此时的接收功率。降低射频子模块和WIFI子模块的输入电压后，获取当前的无线数据传输速率并与预设的无线数据传输速率阈值进行比较，当当前的无线数据传输速率大于预设的无线数据传输速率阈值时，软件执行降低当前的无线数据传输速率至预设的无线数据传输速率阈值。
需要说明的是，在S502和S503中，投影设备的检测模块实时检测按键模块是否有接收到用户的按键信号，以确定当前的投影状态是否发生变化；当检测到按键模块有接收到按键信号时，确定投影状态是否发生变化。这里，按键信号对投影功能的控制形式包括两种：
(1)打开按键信号和关闭按键信号：分别通过指示打开投影功能的打开按键信号和指示关闭投影功能的关闭按键信号控制投影状态；具体的，在S502中，当接收到打开按键信号，当前投影状态未变化，当接收到关闭按键信号时，当前的投影状态由工作状态切换至非工作状态；在S503中，当接收到打开按键信号，当前投影状态由非工作状态切换只工作状态，当接收到关闭按键信号时，当前的投影状态未发生变化。
(2)切换信号：在当前的投影状态为工作状态的情况接收到切换信号时，将当前的投影状态发生切换，具体的，在S502中，当接收到切换信号时，当前的投影状态由工作状态切换为非工作状态；在S503中，当接收到切换信号时，当前的投影状态由非工作状态切换为工作状态。
通过本发明实施例提供的电源管理方法和投影设备，在投影设备的投影状态为工作状态时其无线数据传输速率降低，下载速度被降低，而在投影设备非工作的状态时，无线数据传输速率恢复，其下载速度会恢复原状，并且无论投影设备工作与否，整机的工作电流都不会太大，避免了在投影和非投影的下载的过程中由于电流过大导致电池电压迅速降低从而关机， 也避免了过大工作电流带来的整机发热问题。
实施例四
本发明实施例四为本发明实施例提供的电源管理方法的具体应用，
当用户在使用携带无线热点功能的投影设备时，打开其WIFI功能，并且在线播放自己想看的电影，此时，投影设备未进行投影，投影设备的投影状态为非工作状态，下载速率平均为2Mbps，当用户按下投影按键开关时，投影设备的投影状态由非工作状态切换为工作状态，投影设备将图像投影在幕布上，而内部由于检测模块检测到投影设备开始工作，向管理模块发送控制信号指示降低射频主芯片(射频子模块)和WIFI芯片(WIFI子模块)的输入电压，如从预设的3.8V的第一电压降低到3.6V的第二电压，(由于一般的射频芯片和射频电路的功放、开关、WIFI芯片等芯片的最低输入电压为3.6V左右，因此降低电压同样能保证芯片正常工作)，同时射频芯片和WIFI芯片将原有的数据采集频率降低，如原来每秒采集100个数据，现在每秒采集20个数据，此时，射频芯片的发射功率降低(需要根据不同频段来决定，例如此时在GSM850频段下工作，如果正常工作情况下为最大30dBm的发射功率，当投影设备处在工作状态下时，由于无线通信模块供电被降低，因此射频芯片的收发功率由原来的28dBm降低到26dBm，此时通过调整射频芯片的射频参数将射频芯片的收发功率由26dBm下降到功率19dBm，则在此时射频芯片将收发功率降低至最低发射功率的19dBm，此时GSM850频段仍然可以正常工作，其中，19dBm为可保证射频芯片进行正常数据收发的最低射频功率，该最低射频功率的大小可由用户进行设置)。投影设备的无线数据传输速率降低，如由原来的2Mbps的下载速率变为500Kbps。这里，2Mbps为之前观看电影时的下载速率，500Kbps为用户预设的无线数据传输速率阈值，该阈值可保证用户进行的基本业务如：接打电话，发短信等不受影响。当射频芯片的射频电压 降低后，投影设备的下载速率从2Mbps下降至1Mbps，此时，基于1Mbps大于500Kbps，则通过限速的方式将投影设备的下载速率降低只500Kbps，比如：在投影设备为工作状态下增大射频芯片收发数据的时间间隔，如原来的速率为1秒钟收发5个数据，现在下降为1秒钟收发3个数据。当投影设备在非工作状态下时恢复射频芯片原来的收发数据时间间隔1秒钟收发5个数据。这里，本发明实施例对具体的限速方式不做具体的限制。
如果投影设备的工作电流在投影设备的投影功能打开前为200mA，在打开投影设备的投影功能的同时降低射频芯片和WIFI芯片的输入电压后，该投影设备的工作电流仍然可为200mA左右。
在使用投影设备进行投影的过程中如果用户选择了关闭投影设备的投影功能，此时，投影设备的投影状态由工作状态切换为非工作状态，此时由于检测到投影状态的变化，则恢复射频芯片和WIFI芯片的正常输入电压，即从3.6V恢复到3.8V，同时射频芯片和WIFI芯片也恢复原来的数据采集频率和发射功率，此时用户可以看到当前下载速率恢复到平均2Mbps。如果在下载的过程中用户打开投影设备的投影功能，则再次进行供电分配的调节处理，下载速率再次降低为500Kbps。
在实际应用中，通过本发明实施例的方法，投影设备的处理器检测投影设备的投影状态，当投影设备的投影状态由非工作状态切换为工作状态时，降低射频芯片和WIFI芯片的输入电压，使得射频芯片收发功率和WIFI芯片的发射功率降低，射频芯片和WIFI芯片的无线数据传输速率降低；当射频芯片收发功率和WIFI芯片的发射功率降低未达到预设的收发功率阈值时，进一步通过参数配置的配置将射频芯片收发功率和WIFI芯片的发射功率降低至预设的收发功率阈值；当射频芯片和WIFI芯片的无线数据传输速率未降低至预设的无线数据传输速率阈值时，通过限速将射频芯片和WIFI芯片的无线数据传输速率降低至预设的无线数据传输速率阈值，从而 在投影设备进行投影的情况下，投影设备的工作电流与投影设备未进行投影时的工作电流一致，避免了过大工作电流带来的整机发热问题。
本发明实施例还提供一种计算机存储介质，其中存储有计算机可执行指令，该计算机可执行指令配置执行上述电源管理的方法。
本发明实施例所述集成的模块如果以软件功能模块的形式实现并作为独立的产品销售或使用时，也可以存储在一个计算机可读取存储介质中。基于这样的理解，本发明实施例的技术方案本质上或者说对现有技术做出贡献的部分可以以软件产品的形式体现出来，该计算机软件产品存储在一个存储介质中，包括若干指令用以使得一台计算机设备(可以是个人计算机、服务器、或者网络设备等)执行本发明各个实施例所述方法的全部或部分。而前述的存储介质包括：U盘、移动硬盘、只读存储器(ROM，Read-Only Memory)、随机存取存储器(RAM，Random Access Memory)、磁碟或者光盘等各种可以存储程序代码的介质。这样，本发明实施例不限制于任何特定的硬件和软件结合。
以上所述，仅为本发明的较佳实施例而已，并非用于限定本发明的保护范围。
工业实用性
本发明实施例的电源管理方案，包括：检测所述投影设备的投影状态；根据所述投影状态调节所述投影设备的无线通信模块的输入电压。通过对整个投影设备的投影状态进行检测，通过调整无线通信模块的输入电压对投影设备的上传和下载速率进行控制，在投影设备工作状态的条件下降低此时上传和下载速率，并且在投影模块为非工作的条件下恢复原来的上传和下载速率，达到在一定程度上减小投影设备的工作功耗，延长整机的工作时间，并且有效的控制投影设备的发热，最大程度保证了整机的各种性能并延长了投影设备的工作时间。

Claims (13)

  1. 一种电源管理的方法，所述方法包括：
    检测所述投影设备的投影状态；
    根据所述投影状态调节所述投影设备的无线通信模块的输入电压。
  2. 根据权利要求1所述的方法，其中，所述根据所述投影状态调节所述投影设备的无线通信模块的输入电压包括：
    当所述投影状态由非工作状态切换为工作状态时，将所述无线通信模块的输入电压由第一电压降低至第二电压。
  3. 根据权利要求2所述的方法，其中，所述方法还包括：
    检测所述无线通信模块的输入电压为第二电压时的接收功率和发射功率得到对应的第二接收功率和第二发射功率；
    分别将所述第二接收功率和预设的接收功率阈值，第二发射功率与所述预设的发射功率阈值进行比较；
    当所述第二接收功率大于所述接收功率阈值时，将所述接收功率调整为所述接收功率阈值；
    当所述第二发射功率大于所述发射功率阈值时，将所述发射功率调整为所述发射功率阈值。
  4. 根据权利要求2所述的方法，其中，所述方法还包括：
    检测所述无线通信模块的输入电压为第二电压时的无线数据传输速率得到第二无线数据传输速率；
    将所述第二无线数据传输速率与所述预设的无线数据传输速率阈值进行比较；
    当所述第二无线数据传输速率大于所述无线数据传输速率阈值时，将所述无线数据传输速率调整为所述无线数据传输速率阈值。
  5. 根据权利要求2所述的方法，其中，所述根据所述投影状态调节所 述投设备的无线通信模块的输入电压还包括：
    当所述投影状态由工作状态切换为非工作状态时，将所述无线通信模块的输入电压由所述第二电压升高至所述第一电压。
  6. 根据权利要求1至5任一项所述的方法，其中，所述根据所述投影状态调节所述投影设备的所述无线通信模块的输入电压包括：
    根据所述投影状态调整射频子模块和WIFI子模块的输入电压中的至少一种。
  7. 一种投影设备，所述投影设备包括：
    检测模块，配置为检测所述投影设备的投影状态；
    管理模块，配置为根据所述投影状态调节所述投影设备的无线通信模块的输入电压。
  8. 根据权利要求7所述的投影设备，其中，所述管理模块还配置为：
    当所述投影状态由非工作状态切换为工作状态时，将所述无线通信模块的输入电压由第一电压降低至第二电压。
  9. 根据权利要求8所述的投影设备，其中，所述管理模块还配置为：
    检测所述无线通信模块的输入电压为第二电压时的收发功率得到第二无线收发功率；
    将所述第二无收发功率与所述预设的收发功率阈值进行比较；
    当所述第二收发功率大于所述收发功率阈值时，将所述收发功率调整为所述收发功率阈值。
  10. 根据权利要求8所述的投影设备，其中，所述管理模块还配置为：
    检测所述无线通信模块的输入电压为第二电压时的接收功率和发射功率得到对应的第二接收功率和第二发射功率；
    分别将所述第二接收功率和预设的接收功率阈值，第二发射功率与所述预设的发射功率阈值进行比较；
    当所述第二接收功率大于所述接收功率阈值时，将所述接收功率调整为所述接收功率阈值；
    当所述第二发射功率大于所述发射功率阈值时，将所述发射功率调整为所述发射功率阈值。
  11. 根据权利要求8所述的投影设备，其中，所述管理模块还配置为：
    当所述投影状态由工作状态切换为非工作状态时，将所述无线通信模块的输入电压由所述第二电压升高至所述第一电压。
  12. 根据权利要求7至11任一项所述的投影设备，其中，所述管理模块还配置为：
    根据所述投影状态调整射频子模块和WIFI子模块的输入电压中的至少一种。
  13. 一种计算机存储介质，其中存储有计算机可执行指令，该计算机可执行指令配置执行上述权利要求1至6任何一项所述的电源管理的方法。
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CN101000492A (zh) * 2006-01-10 2007-07-18 宏碁股份有限公司 电源管理方法
CN103906208A (zh) * 2014-03-28 2014-07-02 惠州Tcl移动通信有限公司 一种多模省电的多媒体传输方法及其系统
CN104917987A (zh) * 2015-07-03 2015-09-16 广景视睿科技（深圳）有限公司 一种投影控制方式以及投影装置

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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101000492A (zh) * 2006-01-10 2007-07-18 宏碁股份有限公司 电源管理方法
CN103906208A (zh) * 2014-03-28 2014-07-02 惠州Tcl移动通信有限公司 一种多模省电的多媒体传输方法及其系统
CN104917987A (zh) * 2015-07-03 2015-09-16 广景视睿科技（深圳）有限公司 一种投影控制方式以及投影装置

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