CN103971505A - Remote control receiving signal processing circuit, method thereof, and household electrical appliance possessing circuit - Google Patents
Remote control receiving signal processing circuit, method thereof, and household electrical appliance possessing circuit Download PDFInfo
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- CN103971505A CN103971505A CN201310042327.0A CN201310042327A CN103971505A CN 103971505 A CN103971505 A CN 103971505A CN 201310042327 A CN201310042327 A CN 201310042327A CN 103971505 A CN103971505 A CN 103971505A
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Abstract
The invention provides a remote control receiving signal processing circuit, a processing method thereof, and a household electrical appliance possessing the circuit. A remote control wakeup module is mounted on a present remote control receiving signal processing circuit, and is connected with a main control chip and a remote control receiving module respectively. When the remote control receiving module receives a remote control code emitted by a remote controller, the remote control wakeup module emits a wakeup signal to the main control chip, and the main control chip is waken up; and when the signal received by the remote control receiving module is an interference signal, the remote control wakeup module doe not emit the wakeup signal to the main control chip, and the main control chip is still in an ultralow power consumption standby state. The instability of the main control chip in the ultralow power standby state due to the interference environment is avoided, so the stability of the remote control receiving signal processing circuit is improved, thereby improves the stability of household electrical appliance adopting the circuit is improved, the ultralow power consumption standby is effectively realized, and the standby power consumption is reduced.
Description
Technical field
The present invention relates to field of household appliances, be specifically related to a kind for the treatment of circuit, disposal route of remote control signal reception and adopt the household electrical appliance of this circuit.
Background technology
In prior art, household electrical appliance, in the time of ultra-low power standby, need enter main control chip setting STOP pattern (ultra-low power standby pattern), at this moment, main control chip periphery and internal oscillator circuit will quit work completely, and main control chip kernel CPU also quits work.For the household electrical appliance with telepilot, while entering mode of operation from STOP pattern, need to wake main control chip up by the first code low level of the treatment circuit reception remote control reception code of remote control signal reception.As shown in Figure 1, in the time that main control chip 300 is received the remote control reception code that telepilot 100 sends, main control chip 300 wakes up.But, when the treatment circuit 201 of remote control signal reception disturbs, under electromagnetic interference environment, also can disturb or the impact of electromagnetic interference (EMI) because of light in strong light, mistake by undesired signal as remote control reception code, thereby wake main control chip 300 up.Like this, under interference environment, main control chip cannot stably be operated in STOP pattern, can not meet ultra-low power standby requirement.
Summary of the invention
The object of the invention is to provide a kind for the treatment of circuit, disposal route of remote control signal reception and adopts the household electrical appliance of this circuit, the technical matters that the treatment circuit of existing remote control signal reception is easily disturbed to solve, household electrical appliance cannot stably carry out low-power consumption standby under interference environment.
For solving the problems of the technologies described above, the invention provides a kind for the treatment of circuit of remote control signal reception, comprise main control chip and the remote control reception module being connected with main control chip; This circuit also comprises remote control wake module, and described remote control wake module is connected with main control chip and remote control reception module respectively.
Further, described remote control wake module comprises level transferring chip, and the Enable Pin of described level transferring chip is connected with remote control reception module, and the output terminal of described level transferring chip is connected with main control chip.
Further, described remote control wake module also comprises the 4th electric capacity, the 5th electric capacity, the 6th electric capacity and the 6th resistance; One end of described the 4th electric capacity connects the output terminal of level transferring chip, other end ground connection; What one end of described the 5th electric capacity connected level transferring chip enables selection of time end, other end ground connection; One end of described the 6th electric capacity is connected to the power end of level transferring chip, and the other end is connected to the earth terminal of level transferring chip; One end of described the 6th resistance connects the output terminal of level transferring chip, and the other end connects the end that wakes up of main control chip; The power end of level transferring chip connects power supply; The earth terminal ground connection of level transferring chip.
Further, described remote control reception module comprises remote control reception head, the first electric capacity, the second electric capacity, the 3rd electric capacity, the first resistance, the second resistance, the 3rd resistance, the 4th resistance and the 5th resistance; The output terminal of remote control reception head is connected to the receiving end of main control chip after by the 3rd resistance, the 4th resistance and the 5th resistance of connecting successively; The power end of remote control reception head is connected to power supply by the first resistance; One end of the first electric capacity and the second electric capacity is connected to the power end of remote control reception head jointly, and the other end is common ground; One end of the 3rd electric capacity is connected between the 4th resistance and the 5th resistance, and the other end is ground connection; One end of the second resistance is connected between the 3rd resistance and the 4th resistance, and the other end connects power supply; The earth terminal ground connection of remote control reception head; The Enable Pin of level transferring chip is connected between the 3rd resistance and the 4th resistance.
Further, described remote control reception module comprises remote control reception head, the first electric capacity, the second electric capacity, the 3rd electric capacity, the first resistance, the second resistance, the 3rd resistance, the 4th resistance and the 5th resistance; The output terminal of remote control reception head is connected to the receiving end of main control chip after by the 3rd resistance, the 4th resistance and the 5th resistance of connecting successively; The power end of remote control reception head is connected to power supply by the first resistance; One end of the first electric capacity and the second electric capacity is connected to the power end of remote control reception head jointly, and the other end is common ground; One end of the 3rd electric capacity is connected between the 4th resistance and the 5th resistance, and the other end is ground connection; One end of the second resistance is connected between the 3rd resistance and the 4th resistance, and the other end connects power supply; The earth terminal ground connection of remote control reception head; The Enable Pin of level transferring chip is connected between the 4th resistance and the 5th resistance.
Further, described remote control reception module comprises remote control reception head, the first electric capacity, the second electric capacity, the 3rd electric capacity, the first resistance, the second resistance, the 3rd resistance, the 4th resistance and the 5th resistance; The output terminal of remote control reception head is connected to the receiving end of main control chip after by the 3rd resistance, the 4th resistance and the 5th resistance of connecting successively; The power end of remote control reception head is connected to power supply by the first resistance; One end of the first electric capacity and the second electric capacity is connected to the power end of remote control reception head jointly, and the other end is common ground; One end of the 3rd electric capacity is connected between the 4th resistance and the 5th resistance, and the other end is ground connection; One end of the second resistance is connected between the 3rd resistance and the 4th resistance, and the other end connects power supply; The earth terminal ground connection of remote control reception head; The Enable Pin of level transferring chip is connected between the 5th resistance and the receiving end of main control chip.
Further, described remote control reception head is infrared receiving device.
For solving the problems of the technologies described above, the present invention also provides a kind of household electrical appliance, and these household electrical appliance comprise the treatment circuit of above-mentioned any one remote control signal reception.
For solving the problems of the technologies described above, the present invention also provides a kind of disposal route of remote control signal reception, when main control chip enters ultra-low power standby pattern, when the remote control reception module being connected with main control chip receives remote signal:
If when the low level time of remote signal that the remote control wake module being connected with remote control reception module receives exceedes setting-up time, remote control wake module is exported wake-up signal to main control chip, main control chip wakes up;
If when the low level time of remote signal that the remote control wake module being connected with remote control reception module receives does not exceed setting-up time, remote control wake module is not to main control chip output wake-up signal, and main control chip keeps ultra-low power standby pattern.
Further, described setting-up time
wherein, Css is the capacitance of the peripheral drop-down electric capacity of level transferring chip U1, and Cref is level transferring chip U1 internal reference capacitance, and Tref is the level transferring chip U1 internal reference time.
Beneficial effect of the present invention is: by increase remote control wake module on the treatment circuit of existing remote control signal reception, and remote control wake module is connected with main control chip and remote control reception module respectively.In the time that remote control reception module receives the remote control reception code that telepilot sends, remote control wake module is sent wake-up signal to main control chip, and main control chip wakes up; The signal receiving when remote control reception module is undesired signal, and remote control wake module can not sent wake-up signal to main control chip, and main control chip is still in ultra-low power standby state.So, main control chip just can be because of under interference environment and cannot be stably in ultra-low power standby state, thereby improve the stability of the treatment circuit of remote control signal reception, and then improve the stability of the household electrical appliance that adopt this circuit, more effectively realize ultra-low power standby, reduce stand-by power consumption.
Brief description of the drawings
The accompanying drawing that forms the application's a part is used to provide a further understanding of the present invention, and schematic description and description of the present invention is used for explaining the present invention, does not form inappropriate limitation of the present invention.In the accompanying drawings:
Fig. 1 is the structural representation of the treatment circuit of remote control signal reception in prior art;
Fig. 2 is the structured flowchart of the treatment circuit of remote control signal reception in the present invention;
Fig. 3 is the structural representation of the treatment circuit of remote control signal reception in the embodiment of the present invention one;
Fig. 4 is the structural representation of the treatment circuit of remote control signal reception in the embodiment of the present invention two;
Fig. 5 is the structural representation of the treatment circuit of remote control signal reception in the embodiment of the present invention three;
Fig. 6 is that in the present invention, remote control reception code receives schematic diagram with the signal that wakes code up;
Fig. 7 is that in the present invention, remote control reception interference code receives schematic diagram with the signal that wakes code up.
Embodiment
Below in conjunction with accompanying drawing, embodiments of the invention are elaborated, but the multitude of different ways that the present invention can be defined by the claims and cover is implemented.
Embodiment mono-
The treatment circuit of remote control signal reception as shown in Figure 2, this circuit comprises main control chip 300 and the remote control reception module 201 being connected with main control chip 300; This circuit also comprises remote control wake module 202, and described remote control wake module 202 is connected with main control chip 300 and remote control reception module 201 respectively.By increase remote control wake module 202 on the treatment circuit of existing remote control signal reception, and remote control wake module 202 is connected with main control chip 300 and remote control reception module 201 respectively.In the time that remote control reception module 201 receives the remote control reception code that telepilot 100 sends, 202 of remote control wake module are sent wake-up signal to main control chip 300, and main control chip 300 wakes up; The signal receiving when remote control reception module 201 is undesired signal (remote control reception interference code), and remote control wake module 202 can not sent wake-up signal to main control chip 300, and main control chip 300 is still in ultra-low power standby state.So, main control chip 300 just can be because of under interference environment and cannot be stably in ultra-low power standby state, thereby improve the stability of the treatment circuit of remote control signal reception, and then improve the stability of the household electrical appliance that adopt this circuit, more effectively realize ultra-low power standby, reduce stand-by power consumption.
As shown in Figure 3, preferred, described remote control wake module 202 comprises level transferring chip U1, the 4th capacitor C 4, the 5th capacitor C 5, the 6th capacitor C 6 and the 6th resistance R 6.The Enable Pin ON of described level transferring chip U1 is connected with remote control reception module 201, and the output terminal VOUT of described level transferring chip U1 is connected with main control chip 300.One end of described the 4th capacitor C 4 connects the output terminal VOUT of level transferring chip U1, other end ground connection; What one end of described the 5th capacitor C 5 connected level transferring chip U1 enables selection of time end SS, other end ground connection; One end of described the 6th capacitor C 6 is connected to the power end VIN of level transferring chip U1, and the other end is connected to the earth terminal GND of level transferring chip U1; One end of described the 6th resistance R 6 connects the output terminal VOUT of level transferring chip U1, and the other end connects waking up of main control chip 300 and holds WAKE UP; The power end VIN of level transferring chip U1 connects power supply (the preferred direct supply 3.3V of this power supply or 5V); The earth terminal GND ground connection of level transferring chip U1.
Preferably, described remote control reception module 201 comprises remote control reception head REC1, the first capacitor C 1, the second capacitor C 2, the 3rd capacitor C 3, the first resistance R 1, the second resistance R 2, the 3rd resistance R 3, the 4th resistance R 4 and the 5th resistance R 5; The output terminal VOUT of remote control reception head REC1 is connected to the receiving end REC of main control chip 300 after by the 3rd resistance R 3, the 4th resistance R 4 and the 5th resistance R 5 of connecting successively; The power end VCC of remote control reception head REC1 is connected to power supply (the preferred direct supply 3.3V of this power supply or 5V) by the first resistance R 1; One end of the first capacitor C 1 and the second capacitor C 2 is connected to the power end VCC of remote control reception head REC1 jointly, and the other end is common ground; One end of the 3rd capacitor C 3 is connected between the 4th resistance R 4 and the 5th resistance R 5, and the other end is ground connection; One end of the second resistance R 2 is connected between the 3rd resistance R 3 and the 4th resistance R 4, and the other end connects power supply (the preferred direct supply 3.3V of this power supply or 5V); The earth terminal GND ground connection of remote control reception head REC1; The Enable Pin ON of level transferring chip U1 is connected between the 3rd resistance R 3 and the 4th resistance R 4.Wherein, power supply, by after the current limliting filter action of the first resistance R 1, the first capacitor C 1 and the second capacitor C 2, supplies with energy to remote control reception head REC1.
Preferably, described remote control reception head REC1 is infrared receiving device.
The specific works principle of the treatment circuit of this remote control signal reception is:
Remote control reception head REC1 receives (referring to Fig. 6) after the remote control reception code that telepilot 100 sends, and remote control reception code is through the dividing potential drop of the second resistance R 2 and the 3rd resistance R 3; Remote control reception code after dividing potential drop enters level transferring chip U1 by the Enable Pin ON of level transferring chip U1, the low level time of first code of the remote control reception code receiving as level transferring chip U1 exceedes setting-up time t, level transferring chip U1 holds WAKE UP by an output terminal VOUT low level signal of output (wake-up signal) to waking up of main control chip 300, and main control chip 300 wakes up.
Remote control reception head REC1 receives the remote control reception interference code (undesired signal) rear (referring to Fig. 7) that surrounding environment is sent, and remote control reception interference code is through the dividing potential drop of the second resistance R 2 and the 3rd resistance R 3; Remote control reception interference code after dividing potential drop enters level transferring chip U1 by the Enable Pin ON of level transferring chip U1, because the low level duration of remote control reception interference code is very short, the low level time that level transferring chip U1 receives does not exceed setting-up time t, so level transferring chip U1 exports all the time high level by output terminal VOUT and holds WAKE UP to waking up of main control chip 300, main control chip 300 does not wake up.
Wherein, setting-up time
css is the capacitance of the peripheral drop-down electric capacity of level transferring chip U1 (i.e. the 5th capacitor C 5), and Cref is level transferring chip U1 internal reference capacitance, and Tref is the level transferring chip U1 internal reference time.
The remote signal by the way remote control reception module being received judges, what thereby guarantee remote control reception module received is that normal remote control reception code just wakes up main control chip 300, stability and the accuracy of the treatment circuit work of remote control signal reception are ensured, also just ensured household electrical appliance light disturb or the environment of electromagnetic interference (EMI) under can stablize, exactly in ultra-low power standby state, avoid interference brought energy dissipation.
Embodiment bis-
As shown in Figure 4, the difference of the treatment circuit of the remote control signal reception described in treatment circuit and the embodiment mono-of the remote control signal reception described in embodiment bis-is only: the Enable Pin ON of the level transferring chip U1 of the treatment circuit of the remote control signal reception described in embodiment mono-is connected between the 3rd resistance R 3 and the 4th resistance R 4.And the Enable Pin ON of the level transferring chip U1 of the treatment circuit of remote control signal reception described in embodiment bis-is connected between the 4th resistance R 4 and the 5th resistance R 5.
Embodiment tri-
As shown in Figure 5, the difference of the treatment circuit of the remote control signal reception described in treatment circuit and the embodiment mono-of the remote control signal reception described in embodiment tri-is only: the Enable Pin ON of the level transferring chip U1 of the treatment circuit of the remote control signal reception described in embodiment mono-is connected between the 3rd resistance R 3 and the 4th resistance R 4.And the Enable Pin ON of the level transferring chip U1 of the treatment circuit of remote control signal reception described in embodiment tri-is connected between the 5th resistance R 5 and the receiving end of main control chip 300.
Except the treatment circuit of the remote control signal reception described in above-described embodiment, the present invention also provides a kind of household electrical appliance, and these household electrical appliance have adopted the treatment circuit of above-mentioned any one remote control signal reception.By increase remote control wake module 202 on the treatment circuit of existing remote control signal reception, and remote control wake module 202 is connected with main control chip 300 and remote control reception module 201 respectively.In the time that remote control reception module 201 receives the remote control reception code that telepilot 100 sends, 202 of remote control wake module are sent wake-up signal to main control chip 300, and main control chip 300 wakes up; The signal receiving when remote control reception module 201 is undesired signal, and remote control wake module 202 can not sent wake-up signal to main control chip 300, and main control chip 300 is still in ultra-low power standby state.So, adopt the stability of the household electrical appliance of this circuit to be improved, thereby more effectively realize ultra-low power standby, reduce stand-by power consumption.
Except the treatment circuit of the remote control signal reception described in above-described embodiment, the present invention also provides a kind of disposal route of remote control signal reception.When main control chip enters ultra-low power standby pattern, when the remote control reception module being connected with main control chip receives remote signal: if when the low level time of remote signal that the remote control wake module being connected with remote control reception module receives exceedes setting-up time, remote control wake module is exported wake-up signal (low level signal) to main control chip, and main control chip wakes up; If when the low level time of remote signal that the remote control wake module being connected with remote control reception module receives does not exceed setting-up time, remote control wake module is not to main control chip output wake-up signal (low level signal), and main control chip keeps ultra-low power standby pattern.
Wherein, described setting-up time
css is the capacitance of the peripheral drop-down electric capacity of level transferring chip U1, and Cref is level transferring chip U1 internal reference capacitance, and Tref is the level transferring chip U1 internal reference time.
The foregoing is only the preferred embodiments of the present invention; be not limited to the present invention; for a person skilled in the art; the present invention can have various modifications and variations (such as low level of the present invention is replaced with to high level; high level is replaced with to low level); within the spirit and principles in the present invention all, any amendment of doing, be equal to replacement, improvement etc., within all should being included in protection scope of the present invention.
Claims (10)
1. a treatment circuit for remote control signal reception, comprises main control chip and the remote control reception module being connected with main control chip, it is characterized in that: also comprise remote control wake module, described remote control wake module is connected with main control chip and remote control reception module respectively.
2. the treatment circuit of remote control signal reception according to claim 1, it is characterized in that: described remote control wake module comprises level transferring chip, the Enable Pin of described level transferring chip is connected with remote control reception module, and the output terminal of described level transferring chip is connected with main control chip.
3. the treatment circuit of remote control signal reception according to claim 2, is characterized in that: described remote control wake module also comprises the 4th electric capacity, the 5th electric capacity, the 6th electric capacity and the 6th resistance; One end of described the 4th electric capacity connects the output terminal of level transferring chip, other end ground connection; What one end of described the 5th electric capacity connected level transferring chip enables selection of time end, other end ground connection; One end of described the 6th electric capacity is connected to the power end of level transferring chip, and the other end is connected to the earth terminal of level transferring chip; One end of described the 6th resistance connects the output terminal of level transferring chip, and the other end connects the end that wakes up of main control chip; The power end of level transferring chip connects power supply; The earth terminal ground connection of level transferring chip.
4. the treatment circuit of remote control signal reception according to claim 3, is characterized in that: described remote control reception module comprises remote control reception head, the first electric capacity, the second electric capacity, the 3rd electric capacity, the first resistance, the second resistance, the 3rd resistance, the 4th resistance and the 5th resistance; The output terminal of remote control reception head is connected to the receiving end of main control chip after by the 3rd resistance, the 4th resistance and the 5th resistance of connecting successively; The power end of remote control reception head is connected to power supply by the first resistance; One end of the first electric capacity and the second electric capacity is connected to the power end of remote control reception head jointly, and the other end is common ground; One end of the 3rd electric capacity is connected between the 4th resistance and the 5th resistance, and the other end is ground connection; One end of the second resistance is connected between the 3rd resistance and the 4th resistance, and the other end connects power supply; The earth terminal ground connection of remote control reception head; The Enable Pin of level transferring chip is connected between the 3rd resistance and the 4th resistance.
5. the treatment circuit of remote control signal reception according to claim 3, is characterized in that: described remote control reception module comprises remote control reception head, the first electric capacity, the second electric capacity, the 3rd electric capacity, the first resistance, the second resistance, the 3rd resistance, the 4th resistance and the 5th resistance; The output terminal of remote control reception head is connected to the receiving end of main control chip after by the 3rd resistance, the 4th resistance and the 5th resistance of connecting successively; The power end of remote control reception head is connected to power supply by the first resistance; One end of the first electric capacity and the second electric capacity is connected to the power end of remote control reception head jointly, and the other end is common ground; One end of the 3rd electric capacity is connected between the 4th resistance and the 5th resistance, and the other end is ground connection; One end of the second resistance is connected between the 3rd resistance and the 4th resistance, and the other end connects power supply; The earth terminal ground connection of remote control reception head; The Enable Pin of level transferring chip is connected between the 4th resistance and the 5th resistance.
6. the treatment circuit of remote control signal reception according to claim 3, is characterized in that: described remote control reception module comprises remote control reception head, the first electric capacity, the second electric capacity, the 3rd electric capacity, the first resistance, the second resistance, the 3rd resistance, the 4th resistance and the 5th resistance; The output terminal of remote control reception head is connected to the receiving end of main control chip after by the 3rd resistance, the 4th resistance and the 5th resistance of connecting successively; The power end of remote control reception head is connected to power supply by the first resistance; One end of the first electric capacity and the second electric capacity is connected to the power end of remote control reception head jointly, and the other end is common ground; One end of the 3rd electric capacity is connected between the 4th resistance and the 5th resistance, and the other end is ground connection; One end of the second resistance is connected between the 3rd resistance and the 4th resistance, and the other end connects power supply; The earth terminal ground connection of remote control reception head; The Enable Pin of level transferring chip is connected between the 5th resistance and the receiving end of main control chip.
7. according to the treatment circuit of the remote control signal reception described in any one in claim 4 to 6, it is characterized in that: described remote control reception head is infrared receiving device.
8. household electrical appliance, is characterized in that: the treatment circuit that comprises the remote control signal reception described in any one in claim 1 to 7.
9. a disposal route for remote control signal reception, is characterized in that: when main control chip enters ultra-low power standby pattern, when the remote control reception module being connected with main control chip receives remote signal:
If when the low level time of remote signal that the remote control wake module being connected with remote control reception module receives exceedes setting-up time, remote control wake module is exported wake-up signal to main control chip, main control chip wakes up;
If when the low level time of remote signal that the remote control wake module being connected with remote control reception module receives does not exceed setting-up time, remote control wake module is not to main control chip output wake-up signal, and main control chip keeps ultra-low power standby pattern.
10. the disposal route of remote control signal reception according to claim 9, is characterized in that: described setting-up time
wherein, Css is the capacitance of the peripheral drop-down electric capacity of level transferring chip U1, and Cref is level transferring chip U1 internal reference capacitance, and Tref is the level transferring chip U1 internal reference time.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310042327.0A CN103971505A (en) | 2013-02-03 | 2013-02-03 | Remote control receiving signal processing circuit, method thereof, and household electrical appliance possessing circuit |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310042327.0A CN103971505A (en) | 2013-02-03 | 2013-02-03 | Remote control receiving signal processing circuit, method thereof, and household electrical appliance possessing circuit |
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| CN103971505A true CN103971505A (en) | 2014-08-06 |
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| CN201310042327.0A Pending CN103971505A (en) | 2013-02-03 | 2013-02-03 | Remote control receiving signal processing circuit, method thereof, and household electrical appliance possessing circuit |
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| CN108742948A (en) * | 2018-06-13 | 2018-11-06 | 上海交通大学 | The bionical real-time active opening/closing system of artificial sphincter ani prosthese |
| CN113014082A (en) * | 2021-04-12 | 2021-06-22 | 青岛易来智能科技股份有限公司 | Low-power-consumption standby power supply, circuit, control method and intelligent product |
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