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Circuit and method for managing standby and complete machine powering of television set

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Publication number
CN101252659B
CN101252659B CN 200710013736 CN200710013736A CN101252659B CN 101252659 B CN101252659 B CN 101252659B CN 200710013736 CN200710013736 CN 200710013736 CN 200710013736 A CN200710013736 A CN 200710013736A CN 101252659 B CN101252659 B CN 101252659B
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CN
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Grant
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Prior art keywords
television
electrification
auxiliary
mcu
time
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CN 200710013736
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Chinese (zh)
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CN101252659A (en )
Inventor
邢胜春
郑华磊
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青岛海信电器股份有限公司
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Abstract

The invention discloses a management method for the stand-by and the complete machine electrification of a television. The method adopts the following components: a main processor which is electrified to work after the television is turned on and an auxiliary MCU chip for maintaining the electrification work during the stand-by of the television, wherein, after receiving the turn-on command signal, the auxiliary MCU chip outputs a control signal and controls the complete machine electrification work of the television, and controls the turn-on display of the display screen after a period of time delay. The delay time is equal to the running time of the built-in initialization program of the main processor. The invention simultaneously discloses a management circuit for the stand-by and thecomplete machine electrification of a television, through the full use of the auxiliary MCU chip charged for receiving the turn-on command in the prior television circuit, the auxiliary MCU is simultaneously used as the electrification time sequence control unit of the display screen, thereby, phenomena of screen flash and image abnormality due to the uncontrollability of the display screen during the electrification initialization of the main processor, therefore, the image output quality is effectively improved.

Description

电视机的待机和整机上电管理方法及电路 TV standby machine and the power management circuitry and methods

技术领域 FIELD

[0001] 本发明属于电视机技术领域,涉及一种电视机的待机和整机上电管理方法及电路。 [0001] The present invention belongs to the technical field of a television, a television, to a standby machine and the power management circuitry and methods.

背景技术 Background technique

[0002] 随着技术的不断发展,很多电视机的功能越来越复杂,导致电视机系统越来越庞大。 [0002] With the development of technology, many TV more complex functions, resulting in increasingly large television system. 现在的电视机由几年前的4位机、8位机演变成了现在的S0C嵌入式系统。 Now the TV from the four machine a few years ago, eight machine evolved into the current S0C embedded systems. 目前的嵌入式系统大多是运行Li皿x操作系统,所以要让这么大型的系统待机低功耗非常困难,因此, 有人提出了在主处理器之外增加一个功率较小的副MCU芯片,负责在电视机待机时对遥控 Most embedded systems are currently running dish x Li operating system, so let such a large low-power standby system is very difficult, therefore, it was suggested that the increase in addition to the main processor of a smaller sub-power MCU chip, is responsible for when the TV remote control standby

开机信号和按键开机信号的接收,进而实现对整机电源的管理。 Receiving a power on signal and the key start signal, and then manage the power of the machine. 采用这种主、副处理器的电 Such use of electric main and secondary processor

路设计方式,使主处理器在待机时可以完全断电停机,整机电源仅需提供副MCU芯片的供 Design approach road, the main processor may completely powered down when the standby machine need only provide power for the sub MCU chip

电电压即可,从而显著降低了电视机的待机功耗,达到了节能降耗的目的。 To voltage, thereby significantly reducing the standby power consumption of the television set, achieve the purpose of energy saving.

[0003] 对于目前采用主、副处理器电路设计方式的电视机来说,虽然解决了待机低功耗 [0003] For the currently used television main and sub-processor circuit design approach, although solving the low-power standby

的问题,但是仍然存在两方面的不足:其一、显示屏的开关仍受主处理器的控制,主处理器 Problem, but there are still two disadvantages: First, the display switches still under the control of the main processor, the main processor

的嵌入式系统在启动过程中,通常有两级B00T,在B00T1时,主处理器对外围还没有初始 Embedded systems during startup, there are typically two B00T, when B00T1, the main processor has not yet initial peripheral

化,此时对显示屏来说是不可控的,上电时带来的屏闪、图像异常等现象是不可控和无法消 Of, at this time the display is not controllable, brought on power screen flash, image and other abnormal phenomena are uncontrollable and can not eliminate

除的;其二、副MCU芯片仅负责在电视机待机时对遥控开机信号和开机按键信号进行接收, In addition; Second, only the sub-chip MCU is responsible for receiving signals and a remote control start signal when the start button TV standby,

其余功能按键和遥控键仍由主处理器接收处理,这样,副MCU芯片在电视机上电工作后就 Remaining function keys and the remote control key reception processing still the main processor so that the sub MCU chip power on the TV after work

处于闲置状态,浪费资源和电能。 Is idle, waste of resources and energy.

发明内容 SUMMARY

[0004] 本发明的发明目的在于提供一种电视机的待机和整机上电管理方法,以解决现有 [0004] The invention object of the present invention to provide a television stand and the machine power management method, to solve the conventional

电视机在开机时,显示屏容易出现屏闪和图像异常的问题。 TV in the boot, the display screen is easy to issue flash and image abnormalities occur.

[0005] 为解决上述技术问题,本发明采用以下技术方案予以实现: [0005] To solve the above problems, the present invention employs the following technical solutions to be achieved:

[0006] —种电视机的待机和整机上电管理方法,当电视待机时保持上电工作的副MCU芯片接收到开机指令信号时,一方面输出控制信号至主处理器,以控制电视机中除显示屏以外的其它电路上电工作;另一方面在延迟一定时间后控制显示屏开机显示,所述延迟时间与主处理器内部初始化程序的运行时间相当。 [0006] - when the kind of the machine and the TV standby power management method, a work holding power when the television receiver in standby MCU chip to the sub power-command signal, on the one hand to the main processor outputs a control signal to control the television other work on the electric circuit other than the display screen; the other hand, a predetermined time delay after power-control display screen, the delay time of the main processor runtime internal initialization program quite.

[0007] 所述延迟时间预先存储设定在副MCU芯片中,或者通过接收主处理器在初始化程序运行结束后输出的控制信号的方式来确定。 [0007] The delay time is previously stored in the sub MCU chip set, or by receiving a mode control signal output from the main processor after the initialization run is determined.

[0008] 为了减少主处理器的工作量,降低主处理器端口资源的消耗,所述副MCU芯片接收全部的遥控信号或者按键信号,将其解析成相应的数字指令信号后传输给所述的主处理器。 After [0008] In order to reduce the workload of the main processor, the main processor port to reduce the consumption of resources, the sub MCU chip or a remote control signal received all the key signal, which is parsed into a corresponding digital signal to said command The main processor.

[0009] 所述副MCU芯片接收时钟芯片输出的实时时钟信号,在当前时间到达用户设定的 [0009] The real time clock signal received sub MCU chip clock chip output, at the current time it reaches the user set

开机或者关机时间时,输出指令信号,控制电视机整机上电工作或者进入待机状态。 Boot or shutdown time, the output instruction signal, the power control TV machine or work into a standby state.

[0010] 同时,本发明结合上述方法又相应地提出了一种电视机的待机和整机上电管理电 [0010] Meanwhile, the present invention in conjunction with the method described above and accordingly proposes a television set and a standby power management electrical machine

3路,包括电视开机后上电工作的主处理器和电视待机时保持上电工作的副MCU芯片;其中, Holding electrically actuated 3-way, including a main processor and a standby power television TV start working after the sub MCU chip; wherein,

所述副MCU芯片的输入端接收遥控或者按键信号,通过其中一路输出端连接电视机显示屏的开关控制端,在所述副MCU芯片接收到开机指令后,根据所述主处理器内部初始化程序的运行时间,在延迟所述时间后通过其所述的输出端输出指令信号,控制显示屏开机显示。 After the input of the sub MCU chip receives a remote control or a key signal output is connected by way of which the switching control terminal of the television screen, the received power in the sub MCU chip instruction, the master processor according to an internal initialization program run time, after a delay time by which the output terminal of the instruction signal, controls the display screen displays the boot. [0011 ] 在本发明中,所述显示屏为液晶屏,副MCU芯片的P丽信号输出端连接所述液晶屏的背光亮度调节端口,通过改变副MCU芯片输出的P丽信号的占空比来实现对液晶屏背光亮度的调节。 [0011] In the present invention, the display screen is connected to the backlight of the liquid crystal panel LCD, P Li sub MCU chip signal output port of the brightness adjustment, the sub MCU chip by changing the output signal of the duty ratio P Li to achieve adjustment of the LCD backlight brightness.

[0012] 所述显示屏的开关控制端为液晶屏背光板的使能端,连接所述副MCU芯片的开关信号输出端。 [0012] The switching control terminal of the display panel is a liquid crystal backlight can be terminal connected to the output terminal of the switching signal of the sub MCU chip. 为了改善信号波形,消除抖动,所述副MCU芯片的开关信号输出端通过由两个三极管组成的两级信号放大反向电路连接所述液晶屏背光板的使能端,实现液晶屏开关的准确控制。 In order to improve the signal waveform eliminate jitter, the switching signal output terminal of the sub MCU chip enable inverted amplifying circuit is connected to the LCD backlight panel by two signal transistors composed of two can ends, accurate LCD switch control.

[0013] 为了减少主处理器的工作量,降低主处理器端口资源的消耗,所述副MCU芯片的ADC端口和中断信号输入端口分别与电视机按键板的模拟按键信号输出端和红外遥控接收头模块的输出端对应连接,对输入的按键信号进行模数转换后,或者对接收到的遥控信号进行解码后,生成相应的数字指令信号,通过副MCU芯片的UART接口传送给所述的主处理器。 [0013] In order to reduce the workload of the main processor, the main processor port to reduce the consumption of resources, the sub MCU chip ADC interrupt signal port and the input port and the analog button keypad TV signal output terminal, respectively, and infrared remote control receiver after the output end of the corresponding head module is connected to the input key signal after analog to digital conversion, the received remote control signal or decoding, to generate corresponding digital command signal, UART interface to transfer to the sub MCU chip through said main processor.

[0014] 为了实现电视机的定时开关机功能,所述副MCU芯片的I2C总线端通过I2C总线分别与主处理器和实时时钟芯片的总线端对应连接,所述实时时钟芯片的备份电源端连接电池,在电视机待机时为实时时钟芯片提供工作电源;所述实时时钟芯片的主电源端连接电视机电源板的低压直流电源输出端,在电视机上电后为实时时钟芯片提供工作电源;所述实时时钟芯片的中断信号输出端连接副MCU芯片,在达到用户的设定时间时,向副MCU芯片输出中断信号,通过所述副MCU芯片实现定时开关机控制。 [0014] In order to achieve the TV timer switch function, the end of the secondary I2C bus MCU chip via I2C bus terminal respectively connected to the main processor bus and the real-time clock chip backup power supply terminal is connected to the real time clock chip a battery, is provided when the real time clock chip TV standby operating power; the real time clock chip is connected to a main power supply terminal TV low voltage DC power output terminal of the power supply board, supplies power to the real time clock chip power on the TV; the said real time clock chip interrupt signal output terminal connected to the sub MCU chip, when the user reaches the set time, outputs an interrupt signal to the sub MCU chip, controlled by a timer switch to achieve the sub MCU chip.

[0015] 为了方便副MCU芯片在线升级,所述副MCU芯片与电视机的升级接口相连接,接收外部程序存储设备中的升级程序,以更新其内部的软件程序。 [0015] In order to facilitate online upgrade sub MCU chip, the chip and the sub MCU interface to upgrade the TV is connected to the external program memory upgrade program receiving device to update its internal software program.

[0016] 与现有技术相比,本发明的优点和积极效果是:本发明通过对现有电视机电路中负责待机时接收开机指令的副MCU芯片进行充分利用,将其兼用作显示屏的上电时序控制单元,从而避开了主处理器上电初始化期间由于显示屏不可控而产生的屏闪、图像异常等现象,有效提高了图像输出质量。 [0016] Compared with the prior art, the advantages and positive effects of the invention are: the present invention is received by the standby power on command when the conventional television circuit responsible for sub MCU chip full use, it also serves as a display screen power timing control unit, thus avoiding the flash screen, the image on the host processor abnormal phenomena since the display itself during initial uncontrollable generated, effectively improve the output image quality. 此外,通过将所述副MCU芯片与实时时钟芯片进行连接,从而实现了电视机的定时开关机功能。 Further, by connecting the sub MCU chip real time clock chip, thereby realizing a television set timer switch function.

附图说明 BRIEF DESCRIPTION

[0017] 图1是本发明中电视机的待机和整机上电管理原理方框图;[0018] 图2是实时时钟电路连接原理图; [0017] FIG. 1 is a block diagram of standby and power management on the whole of the principles of the present invention is a television; [0018] FIG. 2 is a schematic diagram of real time clock circuit is connected;

[0019] 图3是副MCU芯片与液晶屏背光板的电路连接原理图;[0020] 图4是遥控信号和按键信号与副MCU芯片连接的电路原理图;[0021 ] 图5是副MCU芯片的管脚连接原理图。 [0019] FIG. 3 is a circuit connection diagram sub MCU chip and the LCD backlight panel; [0020] FIG. 4 is a circuit schematic diagram of a remote control signal and a key signal and the sub MCU chip connection; [0021] FIG. 5 is a sub MCU chip pin connection schematic.

具体实施方式 detailed description

[0022] 下面结合附图和具体实施方式对本发明作进一步详细地说明。 [0022] The present invention will be further described in detail in conjunction with the accompanying drawings and specific embodiments.

4[0023] 本发明的电视机待机系统主要由如下几部分组成:按键电路、遥控电路、实时时钟电路和副MCU芯片。 4 [0023] TV standby system of the present invention is mainly composed by the following parts: the key circuit, remote control circuit, the real-time clock circuit and a sub MCU chip. 在原来的电视机系统中,按键信号、遥控信号、实时时钟以及电视启动时对显示屏的控制信号都是与电视的主处理器相连接。 In the original television system, are connected to a control signal for the display of the television signal of the main processor key, the remote control signal, a real time clock and a TV startup. 而在本发明的电视系统中,将外部的按键遥控和定时都看作成外部中断信号,通过副MCU芯片来获取外部信息,进而实现与主处理器的连接通信,其系统框图参见图1所示。 In the television system of the present invention, the timing of the external buttons and remote control are seen as an external interrupt signal, the external information acquired by the sub MCU chip, so as to realize the communication with the connected host processor, the system block diagram shown in Figure 1 Referring to .

[0024] 图1中,EM8624L为电视开机后上电工作的主处理器,Atmega48为电视待机时保持上电工作的副MCU芯片。 [0024] FIG. 1, EM8624L power to start working after the TV main processor, Atmega48 holding sub MCU chip is electrically actuated TV standby. 所述副MCU芯片在接收到遥控器或者按键板发出的开机指令信号时,输出控制信号,控制电视机整机上电工作;并根据所述主处理器内部初始化程序的运行时间,在延迟所述时间后输出开机0N信号,控制显示屏PANEL开机显示。 Boot command signal of the sub MCU chip receiver to the remote controller or keypad issued, outputs a control signal to control the power working machine TV; according to the internal operation time of the main processor initialization routine, the delay 0N later time the output power signal, power control PANEL screen display. [0025] 所述的延迟时间可以根据主处理器内部初始化程序的运行时间预先存储设定在副MCU芯片中,副MCU芯片在接收到开机指令信号后,延时所述时间后,输出开机0N信号,控制显示屏PANEL开机显示。 Delay time [0025] The set may be stored in advance according to the operating time of the host processor internal initialization sub program in MCU chip, the sub MCU chip after receiving the start command signal, the delay time, the output power 0N signal, the display control PANEL power display. 当然,所述延时时间也可以通过接收主处理器在初始化程序运行结束后输出的控制信号来确定,在副MCU芯片接收到此控制信号后,向显示屏PANEL输出开机0N信号。 Of course, the time delay control signal received by the main processor may be output at the end of the initialization run to determine, after receiving the control signal, it outputs the screen PANEL 0N signal power in the sub MCU chip.

[0026] 为了减少主处理器的工作量,降低主处理器端口资源的消耗,所述副MCU芯片接收全部的遥控信号或者按键信号,将其解析成相应的数字指令信号后传输给所述的主处理器。 After [0026] In order to reduce the workload of the main processor, the main processor port to reduce the consumption of resources, the sub MCU chip or a remote control signal received all the key signal, which is parsed into a corresponding digital signal to said command The main processor.

[0027] 所述副MCU芯片同时与实时时钟电路TIMER相连接,接收时钟芯片输出的实时时钟信号,在当前时间到达用户设定的开机时间时,实时时钟电路TIMER输出中断信号,控制电视机整机上电,开机工作;在当前时间到达用户设定的关机时间时,副MCU芯片输出待机指令信号,控制电视机整机进入待机状态。 When [0027] the sub MCU chip simultaneously connected to the real time clock circuit TIMER, receive real-time clock chip clock signal output, at the current time reaches the start time set by the user, real-time clock circuit TIMER interrupt signal output, the television control whole on machine power, work boot; when the current time reaches the oFF time set by the user, the sub MCU chip standby instruction signal is output, the control TV machine enters the standby state.

[0028] 副MCU芯片ATmega48通过其通用异步串行接口UART和I2C总线与主处理器EM8624L相连接,传送解析后的遥控或者按键指令信号以及其他数据指令。 [0028] The sub MCU ATmega48 chip is connected via its UART universal asynchronous serial interface and I2C bus master processor EM8624L, after parsing the remote control or key transmits command signals and other command data. 红外遥控接收头模块输出的遥控信号IR与副MCU芯片ATmega48的中断信号输入端口INTO相连接,将接收到的遥控信号进行解码后,通过其UART接口传送给主处理器EM8624L,响应遥控信号。 After the infrared remote control receiver module IR remote control signal outputted from the sub MCU chip INTO interrupt signal input port connected to the ATmega48, the received signal is decoded remote control, through which the UART interface to the host processor EM8624L, in response to a remote control signal. 外部实时时钟TMER通过其中断信号输出端INT给副MCU芯片ATmega48提供定时开关机中断,或者通过I2C总线通知副MCU芯片ATmega48当前的时间。 TMER through which external real time clock interrupt signal INT to the output terminal of the sub MCU chip ATmega48 interrupt timer switch to provide, through the I2C bus or notify the sub MCU chip ATmega48 current time. 按键板KEY的模拟按键信号输出端连接副MCU芯片ATmega48的ADC端口, ADC端口采集按键板KEY的模拟信号,转换成数字信号通过UART接口传送给主处理器EM8624L。 ADC port, ADC port acquisition keypad key KEY analog signal an analog signal output terminal is connected to the sub-key sheet KEY ATmega48 MCU chip is converted into a digital signal by the UART interface to transfer to the host processor EM8624L. 副MCU芯片ATmega48连接电视机的Update升级接口,这样不同的机型,不同的显示屏PANEL,只要将副MCU芯片ATmega48与外部程序存储设备相连接,下载外设中的升级程序,即可实现副MCU芯片ATmega48与不同机芯板电路的兼容匹配。 Sub MCU chip ATmega48 Update to upgrade the TV connection interfaces so that different models, different PANEL screen, as long as the sub ATmega48 MCU chip and an external program storage device is connected to the peripheral downloading upgrade can achieve sub ATmega48 MCU chip compatible with different deck plate matching circuit.

[0029] 下面结合图2〜图5具体阐述副MCU芯片ATmega48与外围器件的连接结构。 [0029] FIG. 5 below in connection with FIG. 2 ~ specifically set forth the sub MCU chip connection structure ATmega48 and peripheral devices. 图2中,实时时钟电路采用时钟芯片DS1339实现,其总线端SDA、SCL通过I2C总线连接副MCU芯片U25的27 、28展卩,并分别经上拉电阻R176、R177连接3. 3V直流电源。 2, the real-time clock circuit uses clock chip DS1339 achieved its bus terminal SDA, SCL 27 through 28 show the sub-Jie I2C bus of MCU chip U25, respectively, via pull-up resistors R176, R177 connected to the DC power source 3. 3V. 副MCU芯片U25通过lt总线读取时钟芯片DS1339中的时间信息,例如年、月、日、周、时、分等,实现了时间的显示等相关功能,如图5所示。 Read by the sub MCU chip U25 lt DS1339 chip bus clock time information, for example the year, month, day, week, hour, minute, to achieve a time display and other related functions, as shown in FIG. 时钟芯片DS1339的备份电源端VBACKUP连接电池BT1、BT2,在电视机待机时为时钟芯片DS1339提供工作电源。 VBACKUP backup power supply terminal is connected to a clock chip DS1339 battery BT1, BT2, providing operating power to at TV standby clock chip DS1339. 时钟芯片DS1339的主电源端VCC连接电视机电源板的3. 3V低压直流电源输出端3V3—MCU,在电视机上电后为时钟芯片DS1339提供工作电源。 Main power source terminal VCC is connected to the TV clock chip DS1339 plate 3. 3V supply low-voltage DC power output 3V3-MCU, as the supply of clock chip DS1339 after power on the TV. 所述时钟芯片DS1339的中断信号输出端INT连接副MCU芯片U25的26脚, 在到达用户的设定时间时,向副MCU芯片U25输出中断信号RTCJNT1,通过所述副MCU芯片U25实现电视机的定时开关机等相关功能。 The DS1339 chip clock interrupt signal INT output terminal 26 connected to the sub MCU chip U25 of the foot, when the user set time is reached, an interrupt signal RTCJNT1 outputs the sub MCU chip U25, U25 television achieved by the sub MCU chip timer switch and other related functions. 时钟芯片DS1339的XI、 X2端连接外部晶振X5,提供基准时钟。 XI, X2 DS1339 chip is connected to the clock terminal of an external crystal X5, provides the reference clock.

[0030] 图3是副MCU芯片U25与显示屏PANEL的电路连接原理图,以液晶屏为例加以说明。 [0030] FIG. 3 is a display screen and the sub MCU chip U25 PANEL circuit connection diagram, a liquid crystal panel will be described as an example. 副MCU芯片U25的P丽信号输出端13脚连接液晶屏背光板的背光亮度调节端口P丽, 通过改变副MCU芯片U25输出的P丽信号的占空比来实现对液晶屏背光亮度的调节。 The sub MCU chip U25 P Li backlight signal output pin 13 is connected to the LCD backlight brightness adjustment port P Li, to achieve the adjustment of the LCD backlight brightness by changing the duty ratio of the sub MCU chip U25 output signal P Li. 所述副MCU芯片U25的P丽信号输出端13脚同时通过NPN型三极管Q10及其外围电路组成的信号放大反向电路连接所述液晶屏背光板的Bright端口。 The sub MCU chip U25 P-Li while the signal output terminal pin 13 via a signal NPN transistor Q10 and its peripheral circuit of the inverter circuit connected to said amplifying Bright LCD backlight panel port.

[0031] 所述副MCU芯片U25的开关信号输出端10脚通过由三极管Qll、 Q12组成的两级放大反向电路处理后,连接液晶屏背光板的使能端EN,开关信号PBIAS通过两次取反,可有效改善信号波形,去除抖动。 After [0031] the sub MCU chip U25 switching signal output pin 10 of inverter circuit processed by two amplification by the transistor Qll, Q12 composed of connecting the LCD backlight enable terminal EN, the switching signal PBIAS by two negated, can effectively improve the signal waveforms, the jitter is removed.

[0032] 副MCU芯片U25接管主处理器对显示屏PANEL的控制,作用如下: [0033] (1)对显示屏PANEL的上电和控制更加灵活,解放了主处理器; [0034] (2)主处理器的嵌入式系统在启动过程中有两级B00T,在B00T1时,主芯片对外围还没有初始化,此时对显示屏PANEL来说是不可控的,上电时带来的屏闪、图像异常等现象不可控制和消除;而运用副MCU芯片U25来管理,可以控制显示屏PANEL的整个上电时序。 [0032] The sub MCU chip U25 main processor takes over control of the display PANEL, function as follows: [0033] (1) on the power and control of the display PANEL more flexible, liberated main processor; [0034] (2 ) main processor embedded systems have two B00T during startup, when B00T1, the main chip peripheral initialization has not, at this time pANEL screen is uncontrollable, brought on power-screen flash the image abnormal phenomenon can not control and elimination; and the use of sub MCU chip U25 to manage, you can control the entire power-up sequence on the screen PANEL. [0035] 副MCU芯片U25在接收到开机指令后,通过其输出端2脚向电视机电源板输出信号PWRJ)N,控制电源板上电工作;并通过其输出端23脚向液晶屏逻辑板输出开机信号PPWR。 [0035] The sub MCU chip U25 after receiving the start command, through its output pin 2 to the television output signal power board PWRJ) N, to control the work of the power source board; and an output terminal through which the pin 23 of the logic board to the liquid crystal panel start signal output PPWR.

[0036] 图4是遥控信号和按键信号与副MCU芯片U25连接的电路原理图,按键从KEY端输入模拟信号到副MCU芯片U25的ADC端口22脚,并经上拉电阻R171、 R172连接3. 3V直流电源3V3—MCU。 [0036] FIG. 4 is a circuit schematic diagram of a remote control signal and a key signal and the sub MCU chip U25 is connected, the key KEY-ended input analog signal to the sub MCU chip U25 of the ADC port 22 feet, and by the pull-up resistor R171, R172 connector 3 . 3V DC power 3V3-MCU. ADC采样按键的模拟电压后,量化成数字信号,通过UART接口30、31脚传输给主处理器EM8624L,从而有效降低了主处理器端口资源的消耗。 After the ADC sampling analog voltage keys, quantized into a digital signal, the interface 30, 31 through the UART transmit pin to the host processor EM8624L, thus effectively reducing the consumption of resources of the main processor interface. 另外,待机时,副MCU芯片U25如果采集到开机按键电压,即可唤醒电源开始工作。 Further, standby, if the sub MCU chip U25 voltage power button collected, to wake up power to work.

[0037] 红外遥控信号从IR端通过接口J23的1脚输入给副MCU芯片U25的32脚,副MCU 芯片U25对接收到的遥控信号进行译码后,通过其UART接口30脚(RXD) 、31脚(TXD)传输给主处理器EM8624L。 [0037] IR infrared remote control signal from the terminal 1 via the pin for decoding an input interface to J23 sub MCU chip U25 pin 32, the remote control signal received sub MCU chip U25 through its UART interface pin 30 (the RXD), 31 feet (TXD) to a main processor EM8624L. 遥控信号和按键信号一样都可以唤醒电视机电源。 And key signal as the remote control signal can wake up the TV power. [0038] 在电视机上电工作后,副MCU芯片U25通过其25脚输出指示灯控制信号LED,经三极管Q8控制电视机指示灯由待机颜色转换为开机颜色。 After [0038] the electrical work on a TV, the sub MCU chip U25 output pin 25 through which the LED indicator control signal, the control by the transistor Q8 is turned on the television color lights converted by the standby color.

[0039] 为了方便副MCU芯片U25在线升级,所述副MCU芯片U25的15、16、17脚连接电视机的升级接口J25,接收外部程序存储设备中的升级程序,以更新其内部的软件程序,实现与电视机主机芯板的匹配。 [0039] In order to facilitate online upgrade sub MCU chip U25, U25 of the sub MCU chip 16, 17 pin connector J25 interface to upgrade the TV, the external program memory upgrade program receiving device to update its internal software program , TV host and match to achieve the core plate.

[0040] 二十一世纪中的能源问题尤为突出,节约能源,发展节能电器是迫在眉睫的事情, 而电视产品是每家每户所不可缺少的家用电器。 [0040] energy in the twenty-first century is particularly prominent, energy conservation, development of energy-efficient appliances is an urgent need, and TV products are indispensable for every household appliances. 随着大家能源意识和危机感的增加,节能电器将会成为一个电器中的主流。 As we increase energy awareness and a sense of crisis, energy efficient appliances will become a mainstream Apparatus. 本发明实现了对电视机待机过程中电源管理的模块化设计,不但降低了功耗,而且模块化的设计可以大大减少系统设计的周期,也使对显示屏、按键板、遥控信号和实时时钟的控制更加地灵活可控,同时也避免了一些复杂问题的出现,加快了产品的上市时间。 The present invention is to achieve a modular design for TV standby power management process, not only reduces power consumption, and modular design can greatly reduce the design cycle of the system, also for the display, keypad, remote control signal, and a real time clock the control more flexible and controllable manner, while avoiding the emergence of a number of complex issues, speeding up time to market. [0041] 当然,上述说明并非是对本发明的限制,本发明也并不仅限于上述举例,本技术领域的普通技术人员在本发明的实质范围内所做出的变化、改型、添加或替换,也应属于本发明的保护范围。 [0041] Of course, the foregoing description is not a limitation of the present invention, the present invention is also not limited to the example described above, variations of ordinary skill in the art within the spirit of the present invention is made, modifications, additions or substitutions, It should also fall within the scope of the present invention.

Claims (11)

  1. 一种电视机的待机和整机上电管理方法,其特征在于:当电视待机时保持上电工作的副MCU芯片接收到开机指令信号时,一方面输出控制信号至主处理器,以控制电视机中除显示屏以外的其它电路上电工作;另一方面在延迟一定时间后控制显示屏开机显示,所述延迟时间与主处理器内部初始化程序的运行时间相当。 A television standby machine and the power management method, wherein: when the TV is in standby power work holding the sub MCU chip receives a start command signal, on the one hand to the main processor outputs a control signal to control the television the work machine further electric circuit other than the display screen; the other hand, a predetermined time delay after power-control display screen, the delay time of the main processor runtime internal initialization program quite.
  2. 2. 根据权利要求1所述的电视机的待机和整机上电管理方法,其特征在于:所述延迟时间预先存储设定在副MCU芯片中。 2. TV standby machine and the power management method according to claim 1, wherein: said delay time is previously stored in the sub-set of the MCU chip.
  3. 3. 根据权利要求1所述的电视机的待机和整机上电管理方法,其特征在于:所述延迟时间通过接收主处理器在初始化程序运行结束后输出的控制信号的方式来确定。 The TV and the standby power machine management method according to claim 1, wherein: said delay time is determined by way of the main processor after receiving the initialization operation of the program output from the control signal.
  4. 4. 根据权利要求l所述的电视机的待机和整机上电管理方法,其特征在于:所述副MCU 芯片接收全部的遥控信号或者按键信号,将其解析成相应的数字指令信号后传输给所述的主处理器。 The TV and the standby power machine management method according to claim l, wherein: the sub MCU chip or a remote control signal received all the key signal, which is parsed into a corresponding digital signal after transmission to the main processor.
  5. 5. 根据权利要求l-4任一所述的电视机的待机和整机上电管理方法,其特征在于:所述副MCU芯片接收时钟芯片输出的实时时钟信号,在当前时间到达用户设定的开机或者关机时间时,输出指令信号,控制电视机整机上电工作或者进入待机状态。 The TV and the standby power management method of a machine according to any one of claims l-4, characterized in that: the real time clock signal received sub MCU chip clock chip output current reaches the time set by the user at during startup or shutdown time, the output instruction signal, the power control TV machine or work into a standby state.
  6. 6. —种电视机的待机和整机上电管理电路,包括电视开机后上电工作的主处理器和电视待机时保持上电工作的副MCU芯片,其特征在于:所述副MCU芯片的输入端接收遥控或者按键信号,通过其中一路输出端连接电视机显示屏的开关控制端,在所述副MCU芯片接收到开机指令后,在延迟一定时间后通过其所述的输出端输出指令信号,控制显示屏开机显示,所述延迟时间与主处理器内部初始化程序的运行时间相当。 6. - held on the species and the whole TV standby power management circuit, including a main processor and a standby power television TV start working after the sub MCU chip electrically actuated, characterized in that: said sub MCU chip after receiving a remote control or a key input signal, by way of which a switch control terminal connected to an output terminal of the television screen, the received power in the sub MCU chip instruction, after a predetermined time delay through the output terminal thereof the output command signal , power control display screen, the delay time of the main processor internal initialization program run time rather.
  7. 7. 根据权利要求6所述的电视机的待机和整机上电管理电路,其特征在于:所述副MCU 芯片的ADC端口和中断信号输入端口分别与电视机按键板的模拟按键信号输出端和红外遥控接收头模块的输出端对应连接,对输入的按键信号进行模数转换后,或者对接收到的遥控信号进行解码后,生成相应的数字指令信号,通过副MCU芯片的UART接口传送给所述的主处理器。 The TV and the whole standby power management circuit according to claim 6, wherein: said sub MCU chip ADC interrupt signal port and the input port and the analog button keypad TV signal output terminal, respectively, after the infrared remote control receiver and an output terminal of the corresponding head module connected to the input key signal after analog to digital conversion, the received remote control signal or decoding, to generate corresponding digital command signal, UART interface to transfer to the sub MCU chip by said main processor.
  8. 8. 根据权利要求6所述的电视机的待机和整机上电管理电路,其特征在于:所述显示屏为液晶屏,副MCU芯片的P丽信号输出端连接所述液晶屏的背光亮度调节端口;所述显示屏的开关控制端为液晶屏背光板的使能端,连接所述副MCU芯片的开关信号输出端。 8. The television set on standby and machine power management circuit of claim 6, wherein: said display screen is connected to the backlight brightness of the liquid crystal panel LCD, P Li sub-signal output terminal of the MCU chip adjusting port; a switching control terminal of the liquid crystal display panel to the backlight enable terminal, an output terminal connected to the switching signal of the sub MCU chip.
  9. 9. 根据权利要求8所述的电视机的待机和整机上电管理电路,其特征在于:所述副MCU 芯片的开关信号输出端通过由两个三极管组成的两级信号放大反向电路连接所述液晶屏背光板的使能端。 9. A television set according to the machine on and standby power management circuit according to claim 8, wherein: said switching signal output by the sub MCU chip signals two by two inverted amplifying circuit consisting of transistors connected the LCD backlight enable terminal.
  10. 10. 根据权利要求6所述的电视机的待机和整机上电管理电路,其特征在于:所述副MCU芯片的I2C总线端通过I2C总线分别与主处理器和实时时钟芯片的总线端对应连接,所述实时时钟芯片的备份电源端连接电池,在电视机待机时为实时时钟芯片提供工作电源;所述实时时钟芯片的主电源端连接电视机电源板的低压直流电源输出端,在电视机上电后为实时时钟芯片提供工作电源;所述实时时钟芯片的中断信号输出端连接副MCU芯片,在到达用户的设定时间时,向副MCU芯片输出中断信号,通过所述副MCU芯片实现定时开关机控制。 10. The television set on the machine and standby power management circuit according to claim 6, wherein: said sub MCU chip through the I2C bus I2C bus terminal respectively correspond to the main processor bus terminal and the real time clock chip connected to a real time clock chip backup power supply side of the battery, supplies power to the TV at the real time clock chip is in standby; the real time clock chip is connected to a main power supply terminal TV low voltage DC power output terminal of the power supply board, TV machine as the supply of the electrical real time clock chip; chip time clock interrupt signal output terminal connected to the sub MCU chip, when a user set time is reached, an interrupt signal is output to the sub MCU chip, is achieved by the sub MCU chip timer switch control.
  11. 11. 根据权利要求6所述的电视机的待机和整机上电管理电路,其特征在于:所述副MCU芯片与电视机的升级接口相连接,接收外部程序存储设备中的升级程序,以更新其内部的软件程序。 11. The TV and the whole standby power management circuit according to claim 6, wherein: said sub MCU chip upgrade the television connected to the interface, the external program memory upgrade program receiving device, to update its internal software program.
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