CN109375556A - A kind of control circuit and control method - Google Patents
A kind of control circuit and control method Download PDFInfo
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- CN109375556A CN109375556A CN201811505230.8A CN201811505230A CN109375556A CN 109375556 A CN109375556 A CN 109375556A CN 201811505230 A CN201811505230 A CN 201811505230A CN 109375556 A CN109375556 A CN 109375556A
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- controller
- output end
- controlling brancher
- current potential
- electric power
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- 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
- G05B19/0423—Input/output
-
- 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
- G05B2219/00—Program-control systems
- G05B2219/20—Pc systems
- G05B2219/25—Pc structure of the system
- G05B2219/25257—Microcontroller
Abstract
The invention discloses a kind of control circuit and control method, the circuit includes the first controlling brancher and the second controlling brancher；First controlling brancher includes the first controller, the potential change of first output end of first controller to control the first controlling brancher, to form control signal；Second controlling brancher includes second controller and energy-storage units, energy-storage units are connect to receive and store the electric power of the first output end offer with the first output end, and the power supply end connection of energy-storage units and second controller is to be supplied to second controller for stored electric power；Second controller also has data communication interface, and data communication interface is connect to receive the control signal with the first output end.Control circuit and control method provided by the disclosure change the communication to be formed between control signal realization controller by controlling potential, so that communication only can be realized by power supply line between controller, communication mode is simple, high reliablity, and connection line is less, cost is relatively low.
Description
Technical field
This disclosure relates to electronic technology field more particularly to a kind of control circuit and control method.
Background technique
In current electronic equipment, generally pass through Serial Peripheral Interface (SPI) and universal asynchronous receiving-transmitting transmitter between controller
Two ways is communicated, and is carried out communication by Serial Peripheral Interface (SPI) and is needed six roots of sensation line, including four data lines, a power supply line
And a ground wire, and communication is carried out by universal asynchronous receiving-transmitting transmitter and needs four lines, including two data lines, an electricity
Source line and a ground wire, wherein in household appliance technical field, more simple data communication mode also at least needs three lines
It can realize data communication, including a data line, a power supply line and a ground wire.Such as a kind of low power consumption network intelligence
The communication mode (Chinese publication number is CN201020507462.X) of energy water meter gauge outfit, uses universal asynchronous receiving-transmitting to transmit
The mode of device is communicated, which needs four lines, including two data lines, a power supply line and a ground
Line, the communication mode between this controller is not simple enough, and required route is also more, is applied especially in household electrical appliance, leads
Cause the route of the inside of household electrical appliance complex, and reliability is not high enough.
Summary of the invention
For the above-mentioned technical problems in the prior art, embodiment of the disclosure provides a kind of control circuit and control
Method processed, so that the communication mode between controller is more simple, and high reliablity, and cost is relatively low.
According to the first scheme of the disclosure, the invention discloses a kind of control circuit, the circuit includes the first control branch
Road and the second controlling brancher；First controlling brancher includes the first controller, and first controller is to control described the
The potential change of first output end of one controlling brancher, to form control signal；Second controlling brancher includes the second control
Device and energy-storage units, the energy-storage units are connect to receive and store the first output end offer with first output end
Electric power, the energy-storage units are connect so that stored electric power is supplied to described with the power supply end of the second controller
Two controllers；The second controller has data communication interface, and the data communication interface is connect with first output end
To receive the control signal.Only pass through power supply line in the control circuit that embodiment of the disclosure provides between controller
Realize communication, the communication mode is simple, high reliablity, and connection line is less, so that the cost of the control circuit is relatively low.
In some embodiments, first output end is also connect with the power supply end of the second controller, with for
The second controller provides electric power, so that the second controller can also while communication with first controller
Electric power provided by first controlling brancher is received, the connection line in control circuit is reduced.
In some embodiments, the output current potential of first output end includes the first current potential and the second current potential, and described the
One current potential is higher than second current potential, using potential change as control signal, so that the communication mode between controller is more simple
It is single.
In some embodiments, first controlling brancher will be based on when first output end exports the first current potential
The electric power that first current potential is formed is transmitted separately to the energy-storage units and the second controller, for the energy-storage units
It powers with the second controller.
In some embodiments, the energy-storage units are when first output end exports the second current potential, by the electricity of storage
Power is transmitted to the second controller with single direction to power for it.
In some embodiments, first controlling brancher further includes power branch, the electric power output of the power branch
Side is connect with the power supply end of first output end and second controlling brancher respectively, and the power branch is to for institute
It states the first controlling brancher and second controlling brancher provides electric power.
In some embodiments, first controlling brancher further includes switch unit, the switch unit respectively with it is described
First controller is connected with the electric power outlet side of the power branch, to receive the control signal that first controller is sent,
And then control the potential change of first output end.
According to the alternative plan of the disclosure, the invention also discloses a kind of control methods, are applied to control circuit, described
Control circuit includes the first controlling brancher and the second controlling brancher, and first controlling brancher includes the first controller, and described the
Two controlling branchers include second controller and energy-storage units；The of first controlling brancher is controlled using first controller
The potential change of one output end, to form control signal；It is received using the energy-storage units and stores first output end and mentioned
The electric power of confession, by the power supply end of stored power transmission to the second controller, thus for second control
Device power supply；The control signal that first output end is sent is received by the data communication interface of the second controller,
To generate external control command based on the control signal.The control method that the disclosure provides, communication mode is simple, reliability
It is high.
In some embodiments, the method also includes: provided using first output end for the second controller
Electric power, to reduce the connection line in control circuit.
In some embodiments, the output current potential of first output end includes the first current potential and the second current potential, and described the
One current potential is higher than second current potential, using potential change as control signal, so that the communication mode between controller is more simple
It is single.
In some embodiments, the method also includes: when first output end exports the first current potential, by described the
The electric power that one current potential is formed is transmitted separately to the energy-storage units and the second controller, for energy-storage units and described
Second controller power supply.
In some embodiments, the method also includes: first output end export the second current potential when, by the storage
The electric power of energy unit storage is transmitted to the second controller with single direction to power for it.
In some embodiments, first controlling brancher further includes power branch, the method also includes: pass through power supply
The electric power outlet side of branch provides electric power for the power supply end of first output end and second controlling brancher.
In some embodiments, first controlling brancher further includes switch unit, described to utilize first control
Device controls the potential change of the first output end of first controlling brancher, includes: by described first to form control signal
Controller controls the switch unit, and then controls the potential change of first output end.
Compared with prior art, the beneficial effect of a kind of control circuit and control method provided by the disclosure is:
A kind of control circuit and control method provided by the disclosure change to form control signal with reality by controlling potential
Communication between existing controller, and the electric power that the first current potential is formed can also power for controller, so that passing through between controller
Communication can be realized in power supply line, and communication mode is more simple, high reliablity, and connection line is less, and cost is relatively low.
Detailed description of the invention
Fig. 1 is the structural schematic diagram according to the control circuit of embodiment of the disclosure；
Fig. 2 is the structural schematic diagram according to the control circuit of a specific embodiment of the disclosure；
Fig. 3 is the flow chart according to the control method of embodiment of the disclosure.
Specific embodiment
Technical solution in order to enable those skilled in the art to better understand the present invention, with reference to the accompanying drawing and specific embodiment party
Formula elaborates to the present invention.Embodiment of the disclosure work is further retouched in detail in the following with reference to the drawings and specific embodiments
It states, but not as the restriction to the disclosure.
Technology, method and apparatus known to person of ordinary skill in the relevant may be not discussed in detail, but suitable
In the case of, the technology, method and apparatus should be considered as part of specification.
Fig. 1 is the structural schematic diagram of the control circuit of embodiment of the disclosure, as shown in Figure 1, embodiment of the disclosure is public
A kind of control circuit is opened, which includes the first controlling brancher and the second controlling brancher；First controlling brancher includes the
One controller, the potential change of first output end of first controller to control the first controlling brancher, to form control signal；
Second controlling brancher includes second controller and energy-storage units, and energy-storage units are connect to receive and store first with the first output end
The power supply end of electric power provided by output end, energy-storage units and second controller is connected so that stored electric power to be supplied to
Second controller；Second controller has data communication interface, and data communication interface is connect to receive control with the first output end
Signal.Optionally, energy-storage units can be battery, storage capacitor or other circuit structures with energy-storage function, not make herein
It is specific to limit.Particularly, the first controller forms control signal and second by the potential change of the first output end of control
Controller is communicated, meanwhile, energy-storage units receive the electric power of the first output end output and received electric power are supplied to second
Controller communicates so as to only can be realized by power supply line between the first controlling brancher and the second controlling brancher, it is no longer necessary to
Communication line separately is set, the communication mode is simple, high reliablity, and the cost of the control circuit is relatively low.
In some embodiments, the first output end is also connect with the power supply end of second controller, for the second control
Device provides electric power.Fig. 2 is the structural schematic diagram of the control circuit of a specific embodiment of the disclosure, as shown in Fig. 2, energy storage list
Member be first capacitor (EC1), the first output end by diode (D1) respectively with first capacitor (EC1) and second controller
(MCU2) power supply end (VDD) connection, particularly, the anode of diode (D1) is connect with the first output end, cathode
It is connect respectively with the anode of first capacitor (EC1) and the power supply end (VDD) of second controller (MCU2) connects, so that two
When pole pipe (D1) is connected, the first output end is respectively that second controller (MCU2) and first capacitor (EC1) provide electric power, in two poles
When managing (D1) cut-off, the electric power of storage is supplied to second controller (MCU2) by first capacitor (EC1), so that in the first controller
(MCU1) during being communicated with second controller (MCU2), the first controlling brancher and first capacitor (EC1) are alternately the
Two controllers (MCU2) provide electric power, it is no longer necessary to power supply line are separately set, so that the route of control circuit is simpler.Optionally,
It is additionally provided with filter unit in two controlling branchers, so that the electric power for being supplied to second controller (MCU2) is more stable, as shown in Fig. 2,
In the present embodiment, filter unit is the second capacitor (C1).
In some embodiments, the output current potential of the first output end includes the first current potential and the second current potential, and the first current potential is high
In the second current potential.Particularly, as shown in Fig. 2, the first current potential is high potential " 1 ", the second current potential is low potential " 0 ", the first control
Device processed controls the first output end output high potential or low potential, to form binary control signal and send the control signal
To second controller (MCU2), and then realize the communication between the first controller (MCU1) and second controller (MCU2).
In some embodiments, the first controlling brancher will be based on the first current potential when the first output end exports the first current potential
The electric power of formation is transmitted separately to energy-storage units and second controller.Particularly, the first current potential is high potential " 1 ", such as Fig. 2 institute
Show, the first output end export high potential " 1 " when, diode (D1) conducting, the first output end be simultaneously first capacitor (EC1) and
Second controller (MCU2) provides electric power.
In some embodiments, energy-storage units the first output end export the second current potential when, by the power transmission of storage with
Single direction is to second controller to power for it.Particularly, the second current potential is low potential " 0 ", as shown in Fig. 2, first
When output end exports low potential " 0 ", diode (D1) cut-off blocks the first output end to provide electricity to second controller (MCU2)
Power, at this point, first capacitor (EC1) provides electric power by the power input end of second controller (MCU2) of single direction, so that the
Two controllers (MCU2) work normally during receiving control signal transmitted by the first controller (MCU1).
In some embodiments, the first controlling brancher further includes power branch, the electric power outlet side of power branch respectively with
The connection of the power supply end of first output end and the second controlling brancher.As shown in Fig. 2, in embodiment of the disclosure, power supply branch
Road includes electric power input side and first resistor (R1), the data communication interface of first resistor (R1) and second controller (MCU2)
(I/O) it is additionally provided between 3rd resistor (R3), 3rd resistor (R3) plays metering function, to improve second controller (MCU2) and the
Safety of one controller (MCU1) in communication process, power branch for the first controller (MCU1) and second to control
(MCU2) branch provides electric power, and in the present embodiment, the input voltage of electric power input side is 5V, the electricity of the first controller (MCU1)
The input voltage of power input terminal (VDD) is also 5V, and the first controller (MCU1) also has ground terminal (VSS), second controller
(MCU2) also there is ground terminal (VSS).
In some embodiments, the first controlling brancher further includes switch unit, switch unit respectively with the first controller and
The electric power outlet side of power branch connects, and to receive the control signal that the first controller is sent, and then controls the first output end
Potential change.As shown in Fig. 2, switch unit includes triode (Q1), the base stage (B) of triode (Q1) passes through second resistance (R2)
It is connect with the data communication interface (I/O) of the first controller (MCU1), emitter (C) is connect with first resistor (R1), collection
Electrode (E) ground connection, the data communication interface (I/O) of the first controller (MCU1) are also grounded by the 4th resistance (R4), the 4th electricity
It hinders (R4) and plays shunting function, so that triode (Q1) trouble free service, guarantees the safety of control circuit, particularly, the first control
The on and off of device (MCU1) control triode (Q1) processed, the first controller (MCU1), which sends control signal, makes triode (Q1)
When cut-off, the outlet side of second resistance (R2) is connect with the outlet side of first resistor (R1), at this point, the first of the first controlling brancher
Output end exports high potential " 1 ", and power branch provides for the power input end of first capacitor (EC1) and second controller (MCU2)
When electric power, the first controller (MCU1) send control signal triode (Q1) are connected, the outlet side of second resistance (R2) and the
The outlet side of one resistance (R1) is grounded, and the first output end of the first controlling brancher exports low potential " 0 ", at this point, power branch
Electric power outlet side connect with the data communication interface (I/O) of second controller (MCU2), at this point, diode (D1) ends, the
One capacitor (EC1) is that second controller (MCU2) provides electric power, so that the first controller (MCU1) is to second controller (MCU2)
During the binary control signal for sending high potential " 1 " and low potential " 0 " formation, second controller (MCU2) can also be received
Electric power works normally.
Fig. 3 is the flow chart of the control method of embodiment of the disclosure, as shown in figure 3, embodiment of the disclosure is also disclosed
A kind of control method, is applied to control circuit, and control circuit includes the first controlling brancher and the second controlling brancher, the first control
Branch processed includes the first controller, and the second controlling brancher includes second controller and energy-storage units；The control method includes:
S1 controls the potential change of the first output end of the first controlling brancher using the first controller, to form control letter
Number；
S2 receives using energy-storage units and stores the electric power of the first output end offer, extremely by stored power transmission
The power supply end of second controller, to power for second controller；
S3 receives the control signal that the first output end is sent by the data communication interface of second controller, based on control
Signal processed generates external control command.
Control method provided by embodiment of the disclosure simplifies the communication mode between controller, and reliability also compared with
It is high.
In some embodiments, the method also includes: electric power is provided using the first output end for second controller, to subtract
Connection line in few control circuit.
In some embodiments, the output current potential of the first output end includes the first current potential and the second current potential, and the first current potential is high
In the second current potential.Particularly, the first current potential is high potential " 1 ", and the second current potential is low potential " 0 ", high potential " 1 " and low potential
The variation of " 0 " forms binary control signal to realize the communication between the first controller and second controller.For example, one
In a specific embodiment, a high potential " 1 " is sent to second controller, high potential " 1 " conduct by the first controller first
The sign on of communication, second controller wait the first controller to send control instruction after receiving the sign on, then, the
The output potential change that one controller controls the first output end forms control signal and the control signal is sent to the second control
Device, second controller receive the control signal and send external control command according to it, and the first controller sends end control signal
Subsequent supervention send a low potential " 0 " to second controller, which instructs as sign off, and second controller connects
Terminate current communication after receiving the END instruction.
In some embodiments, the method also includes: the first output end export the first current potential when, by the first current potential shape
At electric power be transmitted separately to energy-storage units and second controller.Particularly, the electricity that the first current potential (i.e. high potential " 1 ") is formed
Power is supplied to energy-storage units and stores, and when the output current potential of the first output end is the second current potential (i.e. low potential " 0 "), by
Energy-storage units provide electric power for second controller so that second controller with normal work in the communication process of the first controller
Make.
In some embodiments, the method also includes: the first output end export the second current potential when, energy-storage units are deposited
The electric power of storage is transmitted to second controller to power for it, to guarantee that second controller is receiving the first controller with single direction
It is worked normally when the control signal of transmission.
In some embodiments, the first controlling brancher further includes power branch, the method also includes: pass through power branch
Electric power outlet side provide electric power for the power supply end of the first output end and the second controlling brancher.
In some embodiments, the first controlling brancher further includes switch unit, the first controller of described utilization control the
The potential change of first output end of one controlling brancher includes: by the first controller control switch list to form control signal
Member, and then control the potential change of the first output end.
In addition, range includes any and all based on this public affairs although exemplary embodiment has been described herein
That opens has equivalent element, modification, omission, combination (for example, scheme that various embodiments are intersected), reorganization or the implementation changed
Example.Element in claims will be construed broadly as based on the language used in claim, however it is not limited in this explanation
Described example, example are to be interpreted as nonexcludability in book or during the implementation of the application.Therefore, this specification and
Example is intended to be to be considered only as example, and real scope and spirit are by following following claims and the full scope of its equivalent institute
Instruction.
Above description is intended to illustrative rather than restrictive.For example, above-mentioned example (or one or more side
Case) it can be in combination with one another.Such as other embodiments can be used when reading foregoing description in those of ordinary skill in the art.
In addition, various features can be grouped together to simplify the disclosure in above-mentioned specific embodiment.This should not be construed as
A kind of not claimed disclosed feature is necessary intention for any claim.On the contrary, the theme of invention can lack
In whole features of specific disclosed embodiment.To which following claims is incorporated to tool as example or embodiment herein
In body embodiment, wherein each claim is independently as individual embodiment, and consider that these embodiments can be with
Various combinations or arrangement are combined with each other.The scope of the present invention should refer to appended claims and these claims are entitled etc.
It is determined with the full scope of form.
Above embodiments are only exemplary embodiment of the present invention, are not used in the limitation disclosure, the protection scope of the disclosure
It is defined by the claims.Those skilled in the art can make respectively the disclosure in the essence and protection scope of the disclosure
Kind modification or equivalent replacement, this modification or equivalent replacement also should be regarded as falling within the scope of the disclosure.
Claims (14)
1. a kind of control circuit, which is characterized in that the circuit includes the first controlling brancher and the second controlling brancher；
First controlling brancher includes the first controller, and first controller is to control the of first controlling brancher
The potential change of one output end, to form control signal；
Second controlling brancher includes second controller and energy-storage units, and the energy-storage units are connect with first output end
To receive and store the electric power that first output end provides, the power supply end of the energy-storage units and the second controller
Connection is to be supplied to the second controller for stored electric power；
The second controller has data communication interface, and the data communication interface is connect with first output end to receive
The control signal.
2. control circuit according to claim 1, which is characterized in that first output end also with the second controller
Power supply end connection, to provide electric power for the second controller.
3. control circuit according to claim 2, which is characterized in that the output current potential of first output end includes first
Current potential and the second current potential, first current potential are higher than second current potential.
4. control circuit according to claim 3, which is characterized in that first controlling brancher is in first output end
When exporting the first current potential, the electric power formed based on first current potential is transmitted separately to the energy-storage units and second control
Device processed.
5. control circuit according to claim 3, which is characterized in that the energy-storage units are exported in first output end
When the second current potential, the electric power of storage is transmitted to the second controller with single direction to power for it.
6. control circuit according to claim 1, which is characterized in that first controlling brancher further includes power branch,
The electric power outlet side of the power branch connects with the power supply end of first output end and second controlling brancher respectively
It connects.
7. control circuit according to claim 6, which is characterized in that first controlling brancher further includes switch unit,
The switch unit is connect with the electric power outlet side of first controller and the power branch respectively, to receive described first
The control signal that controller is sent, and then control the potential change of first output end.
8. a kind of control method, which is characterized in that be applied to control circuit, the control circuit includes the first controlling brancher and the
Two controlling branchers, first controlling brancher include the first controller, and second controlling brancher includes second controller and storage
It can unit；
The potential change of the first output end of first controlling brancher is controlled using first controller,
Signal is controlled to be formed；
The electric power that first output end provides is received and stored using the energy-storage units, extremely by stored power transmission
The power supply end of the second controller, to power for the second controller；
The control signal that first output end is sent is received by the data communication interface of the second controller, with base
External control command is generated in the control signal.
9. control method according to claim 8, which is characterized in that the method also includes: utilize first output
End provides electric power for the second controller.
10. control method according to claim 9, which is characterized in that the output current potential of first output end includes the
One current potential and the second current potential, first current potential are higher than second current potential.
11. control method according to claim 10, which is characterized in that the method also includes: in first output
When the first current potential of output of end, the electric power that first current potential is formed is transmitted separately to the energy-storage units and second control
Device.
12. control method according to claim 11, which is characterized in that the method also includes: in first output
When the second current potential of output of end, the electric power that the energy-storage units store is transmitted to the second controller with single direction as it
Power supply.
13. control method according to claim 8, which is characterized in that first controlling brancher further includes power branch,
The method also includes: the electric power outlet side by power branch is the electricity of first output end and second controlling brancher
Power feed end provides electric power.
14. control method according to claim 13, which is characterized in that first controlling brancher further includes that switch is single
Member, the potential change of first output end that first controlling brancher is controlled using first controller, to be formed
Controlling signal includes:
The switch unit is controlled by first controller, and then controls the potential change of first output end.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811505230.8A CN109375556A (en) | 2018-12-10 | 2018-12-10 | A kind of control circuit and control method |
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| CN201811505230.8A CN109375556A (en) | 2018-12-10 | 2018-12-10 | A kind of control circuit and control method |
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