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WO2015196669A1 - 投影信号处理方法及装置 - Google Patents

投影信号处理方法及装置 Download PDF

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Publication number
WO2015196669A1
WO2015196669A1 PCT/CN2014/089352 CN2014089352W WO2015196669A1 WO 2015196669 A1 WO2015196669 A1 WO 2015196669A1 CN 2014089352 W CN2014089352 W CN 2014089352W WO 2015196669 A1 WO2015196669 A1 WO 2015196669A1
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WO
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Prior art keywords
projection signal
voltage
projection
signal
threshold
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PCT/CN2014/089352
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English (en)
French (fr)
Inventor
田军
邓庆田
Original Assignee
中兴通讯股份有限公司
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Publication of WO2015196669A1 publication Critical patent/WO2015196669A1/zh

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    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
    • G01R31/00—Arrangements for testing electric properties; Arrangements for locating electric faults; Arrangements for electrical testing characterised by what is being tested not provided for elsewhere
    • G01R31/36—Arrangements for testing, measuring or monitoring the electrical condition of accumulators or electric batteries, e.g. capacity or state of charge [SoC]
    • G—PHYSICS
    • G05—CONTROLLING; REGULATING
    • G05B—CONTROL OR REGULATING SYSTEMS IN GENERAL; FUNCTIONAL ELEMENTS OF SUCH SYSTEMS; MONITORING OR TESTING ARRANGEMENTS FOR SUCH SYSTEMS OR ELEMENTS
    • G05B19/00—Programme-control systems
    • G05B19/02—Programme-control systems electric
    • G05B19/04—Programme control other than numerical control, i.e. in sequence controllers or logic controllers
    • G05B19/042—Programme control other than numerical control, i.e. in sequence controllers or logic controllers using digital processors
    • G—PHYSICS
    • G05—CONTROLLING; REGULATING
    • G05F—SYSTEMS FOR REGULATING ELECTRIC OR MAGNETIC VARIABLES
    • G05F1/00—Automatic systems in which deviations of an electric quantity from one or more predetermined values are detected at the output of the system and fed back to a device within the system to restore the detected quantity to its predetermined value or values, i.e. retroactive systems
    • G05F1/10—Regulating voltage or current
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N5/00—Details of television systems
    • H04N5/74—Projection arrangements for image reproduction, e.g. using eidophor

Definitions

  • the embodiment of the invention provides a method and a device for processing a projection signal, so as to at least solve the problem that the terminal is shut down or reset due to excessive impact current of the projector in the prior art.
  • a projection signal processing method includes: collecting a power supply voltage of a terminal; collecting a voltage of a projection signal of a projector on the terminal; according to the power supply voltage and/or the The voltage of the projection signal determines whether the projection signal is attenuated and output.
  • determining whether to attenuate the projection signal according to the supply voltage and/or the voltage of the projection signal further comprises: when at least one of the following conditions is met, the projection signal is not attenuated, and the output is directly output Projection signal: the supply voltage is higher than or equal to the first threshold, wherein the first threshold a maximum voltage value that is not exceeded when the projection signal operates; the voltage of the projection signal is lower than or equal to the second threshold, wherein the second threshold is a minimum of a projection signal necessary to ensure a minimum projection quality Voltage.
  • Attenuating the projection signal comprises: attenuating the projection signal according to a predetermined attenuation coefficient.
  • the method further includes: the projection signal is a signal before the projection driver has been reached.
  • a projection signal processing apparatus including: a first acquisition module 22 configured to collect a supply voltage of the terminal; and a second acquisition module 24 configured to collect the terminal The voltage of the projection signal of the projector; the determining module 26 is configured to determine whether to attenuate the projection signal according to the supply voltage and/or the voltage of the projection signal.
  • the apparatus further includes: an attenuation module 28 configured to attenuate the projection signal if the supply voltage is lower than a first threshold and the voltage of the projection signal is higher than a second threshold.
  • the determining module 26 is further configured to: when the at least one of the following conditions is met, the projection signal is not attenuated, and the projection signal is directly output: the power supply voltage is higher than or equal to the first threshold, where The first threshold is a maximum voltage value that is not exceeded when the projection signal is operated; the voltage of the projection signal is lower than or equal to the second threshold, wherein the second threshold is necessary to ensure a minimum projection quality The lowest voltage of the projected signal.
  • the attenuation module 28 is configured to attenuate the projection signal according to a predetermined attenuation coefficient.
  • the power supply voltage of the terminal is collected; the voltage of the projection signal of the projector on the terminal is collected; whether the output signal is attenuated and output according to the voltage of the power supply voltage and/or the projection signal, and the prior art is solved.
  • the problem of the terminal being shut down or reset due to excessive impact current of the projector.
  • the terminal optimally controls the battery power usage, thereby avoiding the risk of the device being shut down or reset due to a sudden drop in battery power due to the projection impact, thereby improving the user experience.
  • FIG. 1 is a flow chart of a method of processing a projection signal according to an embodiment of the present invention
  • FIG. 3 is a block diagram 1 of a structure of a projection signal processing apparatus according to an embodiment of the present invention.
  • FIG. 4 is a schematic diagram of a module in accordance with a preferred embodiment of the present invention.
  • FIG. 5 is a flow chart of a power monitoring module in accordance with a preferred embodiment of the present invention.
  • FIG. 6 is a flow chart showing the projection operation of a pico projector terminal in accordance with a preferred embodiment of the present invention.
  • Step S102 collecting a power supply voltage of the terminal
  • Step S104 collecting a voltage of a projection signal of the projector on the terminal
  • Step S106 determining whether to attenuate the projection signal according to the voltage of the power supply voltage and/or the voltage of the projection signal.
  • the projection signal When a certain condition is met, the projection signal needs to be attenuated so that the power supply voltage of the terminal satisfies the voltage requirement added by the projector, and the condition can be set in various manners.
  • the power supply voltage is lower than the first
  • the projection signal is attenuated. In this way, the voltage of the signal after the projection signal is attenuated does not impact the power supply of the terminal, and does not cause the terminal to be turned off or reset.
  • the projection signal is a signal that has not yet reached the projection driver.
  • a projection signal processing device is also provided, which is used to implement the above embodiments and preferred embodiments, and has not been described again.
  • the term “module” may implement a combination of software and/or hardware of a predetermined function.
  • the apparatus described in the following embodiments is preferably implemented in software, hardware, or a combination of software and hardware, is also possible and contemplated.
  • FIG. 3 is a block diagram showing the structure of a projection signal processing apparatus according to an embodiment of the present invention.
  • the apparatus further includes an attenuation module 28 configured to set a voltage lower than a first threshold and a high voltage of the projection signal. In the case of the second threshold, the projection signal is attenuated.
  • the attenuation module 28 is configured to attenuate the projection signal according to a predetermined attenuation coefficient.
  • the projection signal is a signal that has not yet reached the projection driver.
  • a state machine for effectively monitoring the amount of power is provided to avoid the impact of the projection signal.
  • the preferred embodiment proposes a method for monitoring the voltage level of the battery and the state of the digital projection signal level in real time to establish a state machine for monitoring the battery voltage. , and a state machine that pre-evaluates the projected energy consumption. According to the estimation results of the two state machines, the optimal control of the battery power usage of the terminal device is realized, and the risk of the device being shut down or reset due to the sudden drop of the battery power due to the projection impact is avoided.
  • the projection device When the power is sufficient, the projection device outputs at full load; when the power is too small, if there is an excessively large projected power consumption at this time, then Attenuation output of the projection signal maximizes the output time of the projection device and prevents the device from shutting down.
  • a method is provided to avoid excessively lowering the battery power when the projected impact signal suddenly increases, thereby avoiding the risk of the terminal being shut down or restarting; 2.
  • the preferred implementation The implementation of the program is simple and operability is very strong.
  • FIG. 4 is a schematic diagram of a module according to a preferred embodiment of the present invention, as shown in FIG. 4, including a battery voltage acquisition module (corresponding to the first acquisition module 22) and a projection signal voltage acquisition module (corresponding to the second acquisition module 24).
  • a power monitoring module (corresponding to the above-described judging module 26), an attenuating module (corresponding to the attenuating module 28), a projection driver, and a projection device (corresponding to the projector).
  • the function of the battery voltage acquisition module is to collect the real-time voltage value of the rechargeable battery in the terminal.
  • the function of the projection signal voltage acquisition module is to acquire the real-time voltage value before the projection signal has reached the projection driver.
  • the function of the power monitoring module is to perform the appropriate processing on the collected two voltage signal values through the power monitoring module in FIG.
  • the function of the attenuation module is based on the result of the comparison.
  • the projection signal is attenuated according to a preset attenuation coefficient; if attenuation is not required, the output of the projection signal is directly performed.
  • the function of the projection driver is to convert the projection signal into a signal source required by the projection device, and then output it to the user through the output of the projection device.
  • FIG. 5 is a flowchart of a power monitoring module according to a preferred embodiment of the present invention. As shown in FIG. 5, the specific implementation steps are as follows:
  • Step S502 the battery voltage is obtained by the battery voltage collecting module inside the terminal;
  • Step S504 the terminal internally acquires a voltage level of the projection signal by using a projection signal voltage collecting module
  • Step S506 determining whether the battery voltage is lower than the preset value V1 (relative to the first threshold value), and when the sampled battery voltage level is higher than or equal to the preset value V1, outputting according to the actual level, performing steps S512, wherein the preset value V1 refers to a maximum voltage value that is not exceeded when the projection signal is operated.
  • Step S508 determining whether the projection signal voltage level is lower than the preset value V2 (relative to the second threshold value), and when the level of the projection signal is lower than or equal to the preset value V2, the output is also performed according to the actual level.
  • Step S512 is performed.
  • the preset value V2 refers to a projection signal voltage value necessary for ensuring the minimum projection quality.
  • Step S510 when the sampled battery voltage level is lower than the preset value V1, and the acquired voltage level of the projection signal is greater than the preset value V2, the projection signal is attenuated at this time, and the attenuated signal is output to the projection. device.
  • a terminal device with a pico projector is provided.
  • the device can output the image on the screen to the background wall through the pico projector, and provide the image to the wall. The user simultaneously watches.
  • FIG. 6 is a flow chart showing the projection operation of the pico projector terminal according to a preferred embodiment of the present invention. As shown in FIG. 6, the flow includes the following steps:
  • step S602 the pico projector switch is turned on.
  • step S604 when the pico projector switch is turned on, when the video signal arrives, the power monitoring module is first entered at this time.
  • step S606 the power monitoring module determines whether to attenuate the projection signal according to an algorithm. When the power monitoring module determines that the attenuation is not required according to the algorithm, step S610 is performed. When the power monitoring module judges according to the algorithm If the output of the original signal may cause the terminal to be shut down or restarted, and the attenuation is required, step S608 is performed.
  • Step S608 the projection signal is attenuated according to a preset attenuation coefficient, and then the attenuated signal is output to the pico projector driver, and step S610 is performed.
  • step S610 the projection signal is output to the pico projector driver, and then step S612 is performed.
  • Step S612 driving the pico projector to perform video output.
  • modules or steps of the present invention described above can be implemented by a general-purpose computing device that can be centralized on a single computing device or distributed across a network 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 thereof are fabricated as a single integrated circuit module.
  • the invention is not limited to any specific combination of hardware and software.
  • the present invention relates to the field of communications, and provides a projection signal processing method and apparatus, wherein the method includes collecting a supply voltage of a terminal; collecting a voltage of a projection signal of a projector on the terminal; and according to a voltage of the power supply voltage and/or the projection signal It is judged whether the projection signal is attenuated and outputted, which solves the problem that the terminal is shut down or reset due to excessive impact current of the projector in the prior art. Furthermore, the terminal optimally controls the battery power usage, thereby avoiding the risk of the terminal being shut down or resetting due to a sudden drop in battery power caused by the projection impact, thereby improving the user experience.

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  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Automation & Control Theory (AREA)
  • Electromagnetism (AREA)
  • Radar, Positioning & Navigation (AREA)
  • Multimedia (AREA)
  • Signal Processing (AREA)
  • Projection Apparatus (AREA)
  • Controls And Circuits For Display Device (AREA)
  • Transforming Electric Information Into Light Information (AREA)

Abstract

一种投影信号处理方法及装置，解决了现有技术中由于投影仪的冲击电流过大导致终端关机或者复位的问题，实现了终端对电池电量使用的最优化控制，避免了由于投影冲击造成电池电量的突然下降导致终端关机或复位的风险，提高了用户体验。其中，该方法包括采集终端的供电电压（S102）；采集终端上的投影仪的投影信号的电压（S104）；根据供电电压和/或投影信号的电压判断是否对投影信号进行衰减输出（S106）。

Description

投影信号处理方法及装置 技术领域
本发明涉及通信领域，具体而言，涉及一种投影信号处理方法及装置。
背景技术
目前很多便携式终端都带有投影装置，这些投影装置可以将终端屏幕上的信息投影放大到背景上，便于用户观看，使得终端可以放置得可以远离用户的眼睛，并且可以多人同时观看。
便携式终端都采用可充电电池的方式提供电源供应，当带有投影装置的时候，会带来一个问题，就是当电池的电压在某些情况下会影响投影装置所增加的电压要求。无论当投影装置是从电池直接供电，还是通过电压升压模块将电池电压增加的方式供电，在高画质的投影输出功率下，或者频繁开关投影仪，对于电池的电流需求会突然变大，此时会导致电池电压降低，电压降低的时候会导致终端关机，或者复位。
当电池电量本来还能满足一段时间的使用，但是由于投影仪的冲击电流过大导致终端关机或者复位，针对这种问题，目前还没有特别有效的解决方法。
发明内容
本发明实施例提供了一种投影信号处理方法及装置，以至少解决现有技术中由于投影仪的冲击电流过大导致终端关机或者复位的问题。
根据本发明实施例的一个方面，提供了一种投影信号处理方法，包括：采集终端的供电电压；采集所述终端上的投影仪的投影信号的电压；根据所述供电电压和/或所述投影信号的电压判断是否对所述投影信号进行衰减输出。
进一步地，根据所述供电电压和/或所述投影信号的电压判断是否对所述投影信号进行衰减输出包括：在所述供电电压低于第一阈值并且所述投影信号的电压高于第二阈值的情况下，对所述投影信号进行衰减输出。
进一步地，根据所述供电电压和/或所述投影信号的电压判断是否对所述投影信号进行衰减输出还包括：在满足以下条件至少之一时，不对所述投影信号进行衰减，直接输出所述投影信号：所述供电电压高于或等于所述第一阈值，其中，所述第一阈值 是所述投影信号工作时所不超过的最大电压值；所述投影信号的电压低于或等于所述第二阈值，其中，所述第二阈值是保证最低投影质量所必须的投影信号的最低电压。
进一步地，对所述投影信号进行衰减输出包括：按照预定的衰减系数对所述投影信号进行衰减。
进一步地，所述方法还包括：所述投影信号为还未到达投影驱动器之前的信号。
根据本发明实施例的另一个方面，还提供了一种投影信号处理装置，包括：第一采集模块22，设置为采集终端的供电电压；第二采集模块24，设置为采集所述终端上的投影仪的投影信号的电压；判断模块26，设置为根据所述供电电压和/或所述投影信号的电压判断是否对所述投影信号进行衰减输出。
进一步地，所述装置还包括：衰减模块28，设置为在所述供电电压低于第一阈值并且所述投影信号的电压高于第二阈值的情况下，对所述投影信号进行衰减输出。
进一步地，所述判断模块26还设置为在满足以下条件至少之一时，不对所述投影信号进行衰减，直接输出所述投影信号：所述供电电压高于或等于所述第一阈值，其中，所述第一阈值是所述投影信号工作时所不超过的最大电压值；所述投影信号的电压低于或等于所述第二阈值，其中，所述第二阈值是保证最低投影质量所必须的投影信号的最低电压。
进一步地，所述衰减模块28，设置为按照预定的衰减系数对所述投影信号进行衰减。
进一步地，所述投影信号为还未到达投影驱动器之前的信号。
通过本发明实施例，采用通过采集终端的供电电压；采集终端上的投影仪的投影信号的电压；根据供电电压和/或投影信号的电压判断是否对投影信号进行衰减输出，解决了现有技术中由于投影仪的冲击电流过大导致终端关机或者复位的问题。进而实现了终端对电池电量使用的最优化控制，避免了由于投影冲击造成电池电量的突然下降导致设备关机或复位的风险，提高了用户体验。
附图说明
此处所说明的附图用来提供对本发明的进一步理解，构成本申请的一部分，本发明的示意性实施例及其说明用于解释本发明，并不构成对本发明的不当限定。在附图中：
图1是根据本发明实施例的投影信号处理方法的流程图；
图2是根据本发明实施例的投影信号处理装置的结构框图；
图3是根据本发明实施例的投影信号处理装置的结构框图一；
图4是根据本发明优选实施例的模块示意图；
图5是根据本发明优选实施例的电力监控模块的流程图；
图6是根据本发明优选实施例的微型投影仪终端的投影工作流程图。
具体实施方式
下文中将参考附图并结合实施例来详细说明本发明。需要说明的是，在不冲突的情况下，本申请中的实施例及实施例中的特征可以相互组合。
在本实施例中提供了一种投影信号处理方法，图1是根据本发明实施例的投影信号处理方法的流程图，如图1所示，该流程包括如下步骤：
步骤S102，采集终端的供电电压；
步骤S104，采集该终端上的投影仪的投影信号的电压；
步骤S106，根据供电电压和/或投影信号的电压判断是否对投影信号进行衰减输出。
通过上述步骤，采集终端的供电电压，采集该终端上的投影仪的投影信号的电压，根据所采集到的供电电压和/或投影信号的电压判断是否对投影信号进行衰减输出。终端在不同的电量场景下采取不同的供电策略，解决了现有技术中由于投影仪的冲击电流过大导致终端关机或者复位的问题，实现了终端对电池电量使用的最优化控制，避免了由于投影冲击造成电池电量的突然下降导致设备关机或复位的风险。
在满足一定条件时，需要对投影信号进行衰减，以使得终端的供电电压满足投影仪所增加的电压要求，条件的设定可以有很多种，在一个优选实施例中，在供电电压低于第一阈值并且该投影信号的电压高于第二阈值的情况下，对该投影信号进行衰减输出。这样对投影信号进行衰减后的信号的电压就不会对终端的供电造成冲击，不会导致终端的关机或复位。
在投影信号不存在对终端供电的潜在冲击时，不会导致终端的关机或者复位，此时就不需要对投影信号进行衰减，在一个优选实施例中，在供电电压高于或等于第一阈值或者投影信号的电压低于或等于第二阈值时，不对投影信号进行衰减，直接输出投影信号。其中，第一阈值是投影信号工作时所不超过的最大电压值，第二阈值是保证最低投影质量所必须的投影信号的最低电压。
需要说明的是，对投影信号进行衰减输出可以有很多种方式，下面对此进行举例说明，在一个优选实施例中，按照预定的衰减系数对该投影信号进行衰减。上述对投影信号进行衰减输出可以根据实际情况灵活处理。
可选地，投影信号为还未到达投影驱动器之前的信号。
在本实施例中还提供了一种投影信号处理装置，该装置用于实现上述实施例及优选实施方式，已经进行过说明的不再赘述。如以下所使用的，术语“模块”可以实现预定功能的软件和/或硬件的组合。尽管以下实施例所描述的装置较佳地以软件来实现，但是硬件，或者软件和硬件的组合的实现也是可能并被构想的。
图2是根据本发明实施例的投影信号处理装置的结构框图，如图2所示，该装置包括：第一采集模块22，设置为采集终端的供电电压；第二采集模块24，设置为采集该终端上的投影仪的投影信号的电压；判断模块26，设置为根据供电电压和/或投影信号的电压判断是否对该投影信号进行衰减输出。
图3是根据本发明实施例的投影信号处理装置的结构框图一，如图3所示，所述装置还包括：衰减模块28，设置为在供电电压低于第一阈值并且投影信号的电压高于第二阈值的情况下，对投影信号进行衰减输出。
可选地，判断模块26还设置为，在满足以下条件至少之一时，不对该投影信号进行衰减，直接输出该投影信号：供电电压高于或等于第一阈值，其中，第一阈值是投影信号工作时所不超过的最大电压值；投影信号的电压低于或等于第二阈值，其中，第二阈值是保证最低投影质量所必须的投影信号的最低电压。
可选地，衰减模块28，设置为按照预定的衰减系数对该投影信号进行衰减。
可选地，投影信号为还未到达投影驱动器之前的信号。
针对相关技术中所存在的上述问题，结合上述实施例，在本优选实施例中提供一种对电量有效监控的状态机来避免投影信号冲击的方法。
为了降低使用投影终端的电池电压突然降低导致关机或者复位的风险，本优选实施例提出一种方法，实时监视电池的电压电平和数字投影信号电平状态变化，建立一种监视电池电压的状态机，和一种预评估投影能量消耗的状态机。根据这两种状态机的预估结果，来实现终端设备对电池电量使用的最优化控制，避免由于投影冲击造成电池电量的突然下降导致设备关机或复位的风险。
在本优选实施例中，建立一种实时采集电池电压和电流的状态机。此状态机根据电池电压和电流，来预估当前电池电量的使用状况，在不同的电量场景下采取不同的供电策略。同时根据实时投影信号建立一种预估投影电量对电池电量消耗的评测状态机。此状态机预判可能瞬时增大的投影电量消耗，采取不同的衰减策略对投影信号进行输出。建立一种电力监控模块，对这两种状态机进行比较控制，当电量比较充足的时候，投影设备满负荷输出；当电量偏少的时候，此时如果存在瞬时过大的投影电量消耗，则会对投影信号进行衰减输出，最大化的延长投影设备的输出使用时间和避免设备关机。
本优选实施例的优势在于：1.提供了一种方法，当投影冲击信号突然增大的时候，避免造成对电池电量的过度拉低，避免了终端关机或者重启的风险；2.本优选实施例方案实施过程简便，可操作性很强。
下面结合附图对本优选实施例的实现方法进行更进一步的详细描述。
图4是根据本发明优选实施例的模块示意图，如图4所示，包括电池电压采集模块(相当于上述第一采集模块22)、投影信号电压采集模块(相当于上述第二采集模块24)、电力监控模块(相当于上述判断模块26)、衰减模块(相当于上述衰减模块28)、投影驱动器、投影设备(相当于上述投影仪)。
下面对各模块的功能进行说明：
电池电压采集模块的功能是用来采集终端内可充电电池的实时电压值。
投影信号电压采集模块的功能是采集投影信号还未到达投影驱动器之前的实时电压值。
电力监控模块的功能是将采集到的上述两种电压信号值，通过图5中电力监控模块，进行合适的处理。
衰减模块的功能是根据比较的结果，当需要进行衰减的时候，按照预设的衰减系数进行投影信号的衰减；如果不需要衰减，则直接进行投影信号的输出。
投影驱动器的功能是将投影信号转化为投影设备所需要的信号源，然后通过投影设备输出，呈现给用户。
图5是根据本发明优选实施例的电力监控模块的流程图，如图5所示，具体实施步骤如下：
步骤S502，终端内部会通过电池电压采集模块来获取电池电压；
步骤S504，终端内部通过投影信号电压采集模块来获取投影信号的电压水平；
步骤S506，判断电池电压是否低于预设值V1(相对于上述第一阈值)，当采样到的电池电压水平高于或等于预设值V1时，则按照实际的电平进行输出，执行步骤S512，其中预设值V1是指投影信号工作时所不超过的最大电压值。
步骤S508，判断投影信号电压水平是否低于预设值V2(相对于上述第二阈值)，当投影信号的电平低于或等于预设值V2的时候，也按照实际的电平进行输出，执行步骤S512。其中，预设值V2是指为了保证最低投影质量所必须的投影信号电压值。
步骤S510，当采样到的电池电压水平低于预设值V1时，且获取到的投影信号的电压水平大于预设值V2时，此时对投影信号进行衰减，将衰减后的信号输出到投影设备。
下面以一种带有微型投影仪的终端设备为例结合一个优选实施例进行说明。
在本优选实施例中，提出了一种带有微型投影仪的终端设备，当打开微型投影仪开关的时候，此设备可以将屏幕上的图像通过微型投影仪输出到背景墙上，提供给多用户同时进行观看。
图6是根据本发明优选实施例的微型投影仪终端的投影工作流程图，如图6所示，该流程包括如下步骤：
步骤S602，在打开微型投影仪开关。
步骤S604，在打开微型投影仪开关的情况下，当视频信号到来的时候，此时首先进入到电力监控模块。
步骤S606，电力监控模块根据算法判断是否对投影信号进行衰减，当电力监控模块根据算法判断出不需要衰减的情况下，执行步骤S610。当电力监控模块根据算法判 断出如果按照原信号输出可能会导致终端关机或者重启的风险，此时需要衰减，执行步骤S608。
步骤S608，将投影信号按照预设的衰减系数进行信号衰减，然后将衰减后的信号输出到微型投影仪驱动器上，执行步骤S610。
步骤S610，将投影信号输出到微型投影仪驱动器上，然后执行步骤S612。
步骤S612，驱动微型投影仪进行视频输出。
本发明上述实施例及优选实施方式，解决了传统微型投影仪终端中可能存在的在投影过程中导致关机或者重启的风险，极大的提高了用户体验。
显然，本领域的技术人员应该明白，上述的本发明的各模块或各步骤可以用通用的计算装置来实现，它们可以集中在单个的计算装置上，或者分布在多个计算装置所组成的网络上，可选地，它们可以用计算装置可执行的程序代码来实现，从而，可以将它们存储在存储装置中由计算装置来执行，并且在某些情况下，可以以不同于此处的顺序执行所示出或描述的步骤，或者将它们分别制作成各个集成电路模块，或者将它们中的多个模块或步骤制作成单个集成电路模块来实现。这样，本发明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优选实施例而已，并不用于限制本发明，对于本领域的技术人员来说，本发明可以有各种更改和变化。凡在本发明的精神和原则之内，所作的任何修改、等同替换、改进等，均应包含在本发明的保护范围之内。
工业实用性
本发明涉及通信领域，提供了一种投影信号处理方法及装置，其中，该方法包括采集终端的供电电压；采集终端上的投影仪的投影信号的电压；根据供电电压和/或投影信号的电压判断是否对投影信号进行衰减输出，解决了现有技术中由于投影仪的冲击电流过大导致终端关机或者复位的问题。进而实现了终端对电池电量使用的最优化控制，避免了由于投影冲击造成电池电量的突然下降导致终端关机或复位的风险，提高了用户体验。

Claims (10)

  1. 一种投影信号处理方法，包括：
    采集终端的供电电压；
    采集所述终端上的投影仪的投影信号的电压；
    根据所述供电电压和/或所述投影信号的电压判断是否对所述投影信号进行衰减输出。
  2. 根据权利要求1所述的方法，其中，根据所述供电电压和/或所述投影信号的电压判断是否对所述投影信号进行衰减输出包括：
    在所述供电电压低于第一阈值并且所述投影信号的电压高于第二阈值的情况下，对所述投影信号进行衰减输出。
  3. 根据权利要求1所述的方法，其中，根据所述供电电压和/或所述投影信号的电压判断是否对所述投影信号进行衰减输出还包括：
    在满足以下条件至少之一时，不对所述投影信号进行衰减，直接输出所述投影信号：
    所述供电电压高于或等于所述第一阈值，其中，所述第一阈值是所述投影信号工作时所不超过的最大电压值；
    所述投影信号的电压低于或等于所述第二阈值，其中，所述第二阈值是保证最低投影质量所必须的投影信号的最低电压。
  4. 根据权利要求1至3中任一项所述的方法，其中，对所述投影信号进行衰减输出包括：
    按照预定的衰减系数对所述投影信号进行衰减。
  5. 根据权利要求1至4中任一项所述的方法，其中，所述方法还包括：
    所述投影信号为还未到达投影驱动器之前的信号。
  6. 一种投影信号处理装置，包括：
    第一采集模块，设置为采集终端的供电电压；
    第二采集模块，设置为采集所述终端上的投影仪的投影信号的电压；
    判断模块，设置为根据所述供电电压和/或所述投影信号的电压判断是否对所述投影信号进行衰减输出。
  7. 根据权利要求6所述的装置，其中，所述装置还包括：
    衰减模块，设置为在所述供电电压低于第一阈值并且所述投影信号的电压高于第二阈值的情况下，对所述投影信号进行衰减输出。
  8. 根据权利要求6所述的装置，其中，所述判断模块还设置为，在满足以下条件至少之一时，不对所述投影信号进行衰减，直接输出所述投影信号：
    所述供电电压高于或等于所述第一阈值，其中，所述第一阈值是所述投影信号工作时所不超过的最大电压值；
    所述投影信号的电压低于或等于所述第二阈值，其中，所述第二阈值是保证最低投影质量所必须的投影信号的最低电压。
  9. 根据权利要求6至8中任一项所述的装置，其中，所述衰减模块设置为，按照预定的衰减系数对所述投影信号进行衰减。
  10. 根据权利要求6至9中任一项所述的装置，其中，所述投影信号为还未到达投影驱动器之前的信号。
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