CN101807106A - Standby circuit of handheld device and awaken method thereof - Google Patents
Standby circuit of handheld device and awaken method thereof Download PDFInfo
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- CN101807106A CN101807106A CN201010137249A CN201010137249A CN101807106A CN 101807106 A CN101807106 A CN 101807106A CN 201010137249 A CN201010137249 A CN 201010137249A CN 201010137249 A CN201010137249 A CN 201010137249A CN 101807106 A CN101807106 A CN 101807106A
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Abstract
The invention discloses a standby circuit of a handheld device and an awaken method thereof, which is characterized in that a touch IC utilizes a charge level which is produced between an operator finger and a touch pad to detect, and the finger is determined whether to touch the sensing surface by detecting the variation of the current; the touch IC transmits a sensing signal to a microcontroller through a first GPIO, the sensing signal awakens the microcontroller from a sleeping mode, and a controllable power supply management IC is opened through a second GPIO to supply power to the device so as to complete the awakening of the entire system; and when the finger of the operator leaves the device after the operation, a touch keystroke IC notifies that the microcontroller that the operation of the device is completed, the microcontroller selects whether the standby is needed according to the present work situation of the device, if the standby is required, the controllable power supply management IC is disconnected through the second GPIO, and the microcontroller enters the sleeping mode until the next awakening. Through the standby circuit, the power consumption during the standby can be kept at the minimum level, so the transparent awaken of the system is completed before the operation of the device, and the awakening process is free from the manual interference.
Description
Technical field
The present invention relates to electronic applications, relate in particular to a kind of stand-by circuit and awakening method thereof of handheld device.
Background technology
Handheld device all is the powered battery mode, and power consumption is a matter of utmost importance for handheld device.Except making power consumption low as far as possible in normal use, how to keep a low power consumption levels when standby is a key.Remove this, how transparent wake up user experience also very crucial, especially for consumer electronics product.
Existing standby mode mostly is two CPU mode of operations, that is: a CPU is used for doing power supply control, and another CPU is used for finishing the equipment operate as normal.It is exactly low power consumption CPU that this standby mode requires the CPU itself as power supply control, and the in running order always wake-up signal that detects.Another kind of common mode is waken up with special button or switch when needing work for being with the CPU of sleep pattern.
First kind of above-mentioned standby mode is because will be with a CPU specialize power management, cost height.And guarantee that a CPU works all the time, power consumption is difficult to accomplish very low level.Remove this, more than two kinds of schemes all exist the user when waking up, to need extra operation, such as button or toggle switch, all can't realize transparent waking up.
Existing standby wakeup mode all is to realize by specific button or switch, realize that transparent waking up with other modes is difficult to reach.
Therefore, how when standby, power consumption to be remained on a very low level, make the operator before to operation of equipment, finish waking up of system simultaneously, make product have more the market competitiveness, become problem anxious to be solved.
Summary of the invention
The object of the invention is to provide a kind of stand-by circuit and awakening method thereof of handheld device, can when standby power consumption be remained on a very low level, makes the operator finish the transparent of system before to operation of equipment simultaneously and wakes up.
For solving technical matters of the present invention, the present invention discloses a kind of stand-by circuit of handheld device, wherein, comprise: the touch dish touches IC, the low-power consumption microcontroller, the controllable electric power Management IC, wherein, described touch dish touches IC, microcontroller (MCU), the controllable electric power Management IC is connected successively, and is connected by first universal input and output (GPIO) interface between described touch IC and the microcontroller, and described microcontroller is connected by the 2nd GPIO with the controllable electric power Management IC; Battery is given described touch IC simultaneously, microcontroller, and the power supply of controllable electric power Management IC powers for other modular circuits of handheld device by described controllable electric power Management IC; Wherein,
Described touch IC is used to utilize between operator's finger and the described touch dish to produce charge level and detect, by the variation that detects electric current determine finger near or whether touch sensitive surface; The signal that is used for sensing sends to described microcontroller by a GPIO interface, this signal wakes described microcontroller and open described controllable electric power Management IC by the 2nd GPIO interface and give described handheld device power supply up from sleep pattern, finishes waking up of total system;
When finger behind operator's complete operation left equipment, described touch IC was used to inform that microcontroller has finished the operation to described handheld device;
Described microcontroller, be used for selecting whether needs standby according to described handheld device present behavior, standby if desired disconnects described controllable electric power Management IC by the 2nd GPIO interface, and described microcontroller self enters sleep pattern, wakes up up to next time.
More preferably, described touch IC is capacitance touch key sensor IC or pyroelectric sensor IC or pyroelectric infrared sensor IC.
More preferably, described microcontroller is the CPU of band sleep pattern.
More preferably, described controllable electric power Management IC is the power supply IC of band control pin.
For solving technical matters of the present invention, the present invention also discloses a kind of awakening method of handheld device, wherein, comprising:
Touch IC and utilize and produce charge level between operator's finger and the touch dish and detect, determine that by the variation that detects electric current finger is approaching or whether touch sensitive surface;
Described touch IC sends to microcontroller with the signal of sensing by a GPIO interface, this signal wakes microcontroller and open the controllable electric power Management IC by the 2nd GPIO interface and give described handheld device power supply up from sleep pattern, finishes waking up of total system;
When finger behind operator's complete operation leaves described handheld device, touch IC and inform that microcontroller has finished the operation to described handheld device, microcontroller is selected whether needs standby according to described handheld device present behavior, standby if desired, disconnect the controllable electric power Management IC by the 2nd GPIO, and self enters sleep pattern microcontroller, wakes up up to next time.
More preferably, described touch IC is capacitance touch key sensor IC or pyroelectric sensor IC or pyroelectric infrared sensor IC.
Compared with prior art, the present invention has following beneficial effect:
The stand-by circuit of handheld device of the present invention and awakening method thereof, can be when standby power consumption be remained on a very low level, simultaneously by the low-power consumption sensor being installed, making the operator finish the transparent of system before to operation of equipment and wake up in the suitable position of equipment.
Description of drawings
Fig. 1 is the stand-by circuit structural representation of a kind of handheld device of one embodiment of the invention;
Fig. 2 is the awakening method schematic flow sheet of a kind of handheld device of the embodiment of the invention.
Embodiment
The invention provides a kind of stand-by circuit and awakening method thereof of handheld device, can be when standby power consumption be remained on a very low level, simultaneously by the low-power consumption sensor being installed, making the operator finish the transparent of system before to operation of equipment and wake up in the suitable position of equipment.
This paper is transparent to be waken up and refers to the user and pick up after the equipment, and equipment perception automatically also wakes up, and this process is transparent for the user, the existence of imperceptible this process of user.
The present invention utilizes capacitance touch key sensor (perhaps pyroelectric sensor), and band sleep pattern CPU and controllable electric power Management IC array mode realize that the transparent of standby wakes up.
As shown in Figure 1, electrical block diagram for the stand-by circuit of a kind of handheld device of one embodiment of the invention, the stand-by circuit of this handheld device comprises: touch dish 10, touch IC11, microcontroller (MCU, Microcontroller Unit) 12, controllable electric power Management IC 13 and other modular circuits 14.Wherein, touch dish 10, touch IC11, MCU12, controllable electric power Management IC 13 and other modular circuits 14 are connected successively, and connect by the first universal IO interface (GPIO, General Purpose I/O) 1 between described touch IC11 and the MCU12, described MCU12 is connected by the 2nd GPIO2 with controllable electric power Management IC 13.Battery can be given described touch IC11 simultaneously, MCU12, and 13 power supplies of controllable electric power Management IC, described controllable electric power Management IC 13 can be given other modular circuit 14 power supplies.
As above shown in Figure 1, touch IC11 and can be capacitance touch key sensor IC, for example condenser type low-power consumption singly-bound touch key-press sensor special IC also can be pyroelectric sensor IC.MCU12 can be the wide voltage CPU of low-power consumption of band sleep pattern.Controllable electric power Management IC 13 can be the power supply IC of band control pin.Touch IC11, MCU12 is directly powered by two batteries, and battery outputs to other operating circuits 14 of equipment after by 13 voltage stabilizings of controllable electric power Management IC.
By touch IC11, MCU12, controllable electric power Management IC 13 just can be finished opening and turn-off function of power supply.When the user touches touch dish 10 during to operation of equipment, touching IC11 senses signal and this signal is sent to MCU12 by the GPIO1 interface, this signal wakes MCU12 and open controllable electric power Management IC 13 by the GPIO2 interface and give power devices up from sleep pattern, for example other circuit supplies of equipment are finished waking up of total system.Otherwise stop using, then turn-off controllable electric power Management IC 13, thereby and MCU12 self also enter sleep pattern and play the effect that reduces power consumption.
Circuit working principle and signal flow be to can be as shown in Figure 2, is the awakening method schematic flow sheet of a kind of handheld device of the embodiment of the invention.
For example, touch IC11, for example capacitance type touch key IC, utilize operator's finger and touch dish 10, touch key-press pad for example, between produce charge level and detect, determine that by the subtle change that detects electric current finger is approaching or whether touch sensitive surface.Utilize a metal flat or pad to be wired to touch IC11 and just constituted the touch key-press circuit.
As long as finger is near the touch key-press pad, when promptly picking up the equipment beamhouse operation, just can produce push button signalling and GPIO1 is dragged down by touching IC11, notice MCU12 operates equipment this moment, this moment, MCU12 controlled the switch pin of controllable electric power Management IC 13 by GPIO2, open controllable electric power Management IC 13, so just finished wake operation.
As long as touch key-press pad riding position is reasonable, just can play transparent waking up.With the telepilot is example, and the touch key-press pad is placed to the telepilot back side, just can finish when the user picks up telepilot and wake up.
Finger leaves equipment behind operator's complete operation, touch key-press IC11 informs that MCU12 has finished the operation to equipment, MCU12 selects whether needs standby according to the current device working condition, only need if desired to disconnect controllable electric power Management IC 13 by GPIO2, and self enters sleep pattern MCU12, touches IC11 up to next time it is waken up.This moment, Overall Power Consumption only added the own loss that MCU12 sleep power consumption is added controllable electric power Management IC 13 for the stand-by power consumption that touches IC11, touch IC11 by suitable selection, MCU12 and controllable electric power Management IC 13 just can guarantee a very low stand-by power consumption level.
In another embodiment of the present invention, will touch IC11 and change pyroelectric infrared sensor IC into, whether detection has heat source near equipment need to judge whether operating equipment also is a kind of feasible way.
In sum, the present invention has realized the transparent of handheld device waken up and standby, makes the user need not all will start shooting before each operating equipment, also need not manually standby after using.This will simplify the operation greatly, be user-friendly to, and really realize " promptly take and promptly use ".
Claims (6)
1. the stand-by circuit of a handheld device is characterized in that, comprising: the touch dish, touch IC, microcontroller, the controllable electric power Management IC, wherein, described touch dish, touch IC, microcontroller (MCU), the controllable electric power Management IC is connected successively, and be connected by first universal input and output (GPIO) interface between described touch IC and the microcontroller, described microcontroller is connected by the 2nd GPIO with the controllable electric power Management IC; Battery is given described touch IC simultaneously, microcontroller, and the power supply of controllable electric power Management IC powers for other modular circuits of handheld device by described controllable electric power Management IC; Wherein,
Described touch IC is used to utilize between operator's finger and the described touch dish to produce charge level and detect, by the variation that detects electric current determine finger near or whether touch sensitive surface; The signal that is used for sensing sends to described microcontroller by a GPIO interface, this signal wakes described microcontroller and open described controllable electric power Management IC by the 2nd GPIO interface and give described handheld device power supply up from sleep pattern, finishes waking up of total system;
When finger behind operator's complete operation left equipment, described touch IC was used to inform that microcontroller has finished the operation to described handheld device;
Described microcontroller, be used for selecting whether needs standby according to described handheld device present behavior, standby if desired disconnects described controllable electric power Management IC by the 2nd GPIO interface, and described microcontroller self enters sleep pattern, wakes up up to next time.
2. the stand-by circuit of handheld device as claimed in claim 1 is characterized in that, described touch IC is capacitance touch key sensor IC or pyroelectric sensor IC or pyroelectric infrared sensor IC.
3. the stand-by circuit of handheld device as claimed in claim 1 is characterized in that, described microcontroller is the CPU of band sleep pattern.
4. the stand-by circuit of handheld device as claimed in claim 1 is characterized in that, described controllable electric power Management IC is the power supply IC of band control pin.
5. the awakening method of a handheld device is characterized in that, comprising:
Touch IC and utilize and produce charge level between operator's finger and the touch dish and detect, determine that by the variation that detects electric current finger is approaching or whether touch sensitive surface;
Described touch IC sends to microcontroller with the signal of sensing by a GPIO interface, this signal wakes microcontroller and open the controllable electric power Management IC by the 2nd GPIO interface and give described handheld device power supply up from sleep pattern, finishes waking up of total system;
When finger behind operator's complete operation leaves described handheld device, touch IC and inform that microcontroller has finished the operation to described handheld device, microcontroller is selected whether needs standby according to described handheld device present behavior, standby if desired, disconnect the controllable electric power Management IC by the 2nd GPIO, and self enters sleep pattern microcontroller, wakes up up to next time.
6. method as claimed in claim 5 is characterized in that, described touch IC is capacitance touch key sensor IC or pyroelectric sensor IC or pyroelectric infrared sensor IC.
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| CN201010137249A CN101807106A (en) | 2010-03-26 | 2010-03-26 | Standby circuit of handheld device and awaken method thereof |
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| CN201010137249A CN101807106A (en) | 2010-03-26 | 2010-03-26 | Standby circuit of handheld device and awaken method thereof |
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| CN102005074A (en) * | 2010-11-22 | 2011-04-06 | 北京长城高腾信息产品有限公司 | Lottery ticket machine energy saving system and method thereof |
| CN102478952A (en) * | 2010-11-29 | 2012-05-30 | 瑞昱半导体股份有限公司 | Electronic device with standby mode and operating method thereof |
| CN102495707A (en) * | 2011-12-06 | 2012-06-13 | 天马微电子股份有限公司 | Touch monitor and touch display method and system thereof |
| CN102510454A (en) * | 2011-10-21 | 2012-06-20 | 康佳集团股份有限公司 | Control circuit with ultra-low standby power consumption |
| CN102692984A (en) * | 2011-03-24 | 2012-09-26 | 国基电子（上海）有限公司 | Electronic device |
| CN102760044A (en) * | 2012-06-28 | 2012-10-31 | 珠海市魅族科技有限公司 | Control system of mobile terminal and mobile terminal |
| CN102779007A (en) * | 2012-06-28 | 2012-11-14 | 珠海市魅族科技有限公司 | Exit control method of terminal sleep mode and terminal |
| CN103106020A (en) * | 2011-11-14 | 2013-05-15 | 联想(北京)有限公司 | Display method and electronic equipment |
| US8856558B2 (en) | 2010-06-25 | 2014-10-07 | Realtek Semiconductor Corp. | Electronic apparatus having stand-by mode and operation method thereof |
| CN106547334A (en) * | 2016-10-08 | 2017-03-29 | 深圳市绘王动漫科技有限公司 | Handheld device and the method for controlling handheld device wake-up and dormancy |
| CN106940915A (en) * | 2016-10-20 | 2017-07-11 | 深圳市常工电子计算机有限公司 | It is a kind of that there is the high frequency M1 card intellectual water meters for touching arousal function |
| US9733822B2 (en) | 2011-09-20 | 2017-08-15 | Lenovo (Beijing) Co., Ltd. | Electronic device and state controlling method |
| WO2019056349A1 (en) * | 2017-09-25 | 2019-03-28 | 鹤壁天海电子信息系统有限公司 | Device starting method and apparatus |
| CN110892188A (en) * | 2018-11-30 | 2020-03-17 | 深圳市大疆创新科技有限公司 | Control method of handheld cloud deck and handheld cloud deck |
| CN111566593A (en) * | 2017-11-10 | 2020-08-21 | 雷蛇(亚太)私人有限公司 | Machine learning zero-delay input device |
| CN112294060A (en) * | 2017-07-28 | 2021-02-02 | 芜湖美的厨卫电器制造有限公司 | Awakening method and device of intelligent water cup system and intelligent water cup |
| CN114859771A (en) * | 2022-03-31 | 2022-08-05 | 北京航天时代光电科技有限公司 | Motion data acquisition and control circuit |
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| US8856558B2 (en) | 2010-06-25 | 2014-10-07 | Realtek Semiconductor Corp. | Electronic apparatus having stand-by mode and operation method thereof |
| CN102005074A (en) * | 2010-11-22 | 2011-04-06 | 北京长城高腾信息产品有限公司 | Lottery ticket machine energy saving system and method thereof |
| CN102478952A (en) * | 2010-11-29 | 2012-05-30 | 瑞昱半导体股份有限公司 | Electronic device with standby mode and operating method thereof |
| CN102692984A (en) * | 2011-03-24 | 2012-09-26 | 国基电子（上海）有限公司 | Electronic device |
| CN102692984B (en) * | 2011-03-24 | 2014-12-10 | 国基电子（上海）有限公司 | Electronic device |
| US9733822B2 (en) | 2011-09-20 | 2017-08-15 | Lenovo (Beijing) Co., Ltd. | Electronic device and state controlling method |
| CN102510454A (en) * | 2011-10-21 | 2012-06-20 | 康佳集团股份有限公司 | Control circuit with ultra-low standby power consumption |
| CN109324747A (en) * | 2011-11-14 | 2019-02-12 | 联想(北京)有限公司 | Display methods and electronic equipment |
| CN103106020A (en) * | 2011-11-14 | 2013-05-15 | 联想(北京)有限公司 | Display method and electronic equipment |
| CN102495707A (en) * | 2011-12-06 | 2012-06-13 | 天马微电子股份有限公司 | Touch monitor and touch display method and system thereof |
| CN102495707B (en) * | 2011-12-06 | 2015-02-04 | 天马微电子股份有限公司 | Touch monitor and touch display method and system thereof |
| CN102779007B (en) * | 2012-06-28 | 2016-08-03 | 魅族科技（中国）有限公司 | The withdrawal control method of a kind of terminal dormancy mode and terminal |
| CN102779007A (en) * | 2012-06-28 | 2012-11-14 | 珠海市魅族科技有限公司 | Exit control method of terminal sleep mode and terminal |
| CN102760044B (en) * | 2012-06-28 | 2015-08-12 | 魅族科技（中国）有限公司 | A kind of control system of mobile terminal and mobile terminal |
| CN102760044A (en) * | 2012-06-28 | 2012-10-31 | 珠海市魅族科技有限公司 | Control system of mobile terminal and mobile terminal |
| CN106547334B (en) * | 2016-10-08 | 2019-10-01 | 深圳市绘王动漫科技有限公司 | Handheld device and the method for controlling handheld device wake-up and suspend mode |
| CN106547334A (en) * | 2016-10-08 | 2017-03-29 | 深圳市绘王动漫科技有限公司 | Handheld device and the method for controlling handheld device wake-up and dormancy |
| CN106940915A (en) * | 2016-10-20 | 2017-07-11 | 深圳市常工电子计算机有限公司 | It is a kind of that there is the high frequency M1 card intellectual water meters for touching arousal function |
| CN106940915B (en) * | 2016-10-20 | 2023-08-08 | 深圳市常工电子计算机有限公司 | High-frequency M1 card intelligent water meter with wake-on-touch function |
| CN112294060A (en) * | 2017-07-28 | 2021-02-02 | 芜湖美的厨卫电器制造有限公司 | Awakening method and device of intelligent water cup system and intelligent water cup |
| WO2019056349A1 (en) * | 2017-09-25 | 2019-03-28 | 鹤壁天海电子信息系统有限公司 | Device starting method and apparatus |
| CN111566593A (en) * | 2017-11-10 | 2020-08-21 | 雷蛇(亚太)私人有限公司 | Machine learning zero-delay input device |
| CN110892188A (en) * | 2018-11-30 | 2020-03-17 | 深圳市大疆创新科技有限公司 | Control method of handheld cloud deck and handheld cloud deck |
| CN110892188B (en) * | 2018-11-30 | 2022-05-17 | 深圳市大疆创新科技有限公司 | Control method of handheld cloud deck and handheld cloud deck |
| CN114859771A (en) * | 2022-03-31 | 2022-08-05 | 北京航天时代光电科技有限公司 | Motion data acquisition and control circuit |
| CN114859771B (en) * | 2022-03-31 | 2023-08-29 | 北京航天时代光电科技有限公司 | Motion data acquisition and control circuit |
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Application publication date: 20100818 |