CN110048484A - Communication control circuit, control method and device thereof and air conditioner - Google Patents
Communication control circuit, control method and device thereof and air conditioner Download PDFInfo
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- CN110048484A CN110048484A CN201910360496.6A CN201910360496A CN110048484A CN 110048484 A CN110048484 A CN 110048484A CN 201910360496 A CN201910360496 A CN 201910360496A CN 110048484 A CN110048484 A CN 110048484A
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- 238000004891 communication Methods 0.000 title claims abstract description 278
- 238000000034 method Methods 0.000 title claims abstract description 32
- 230000005611 electricity Effects 0.000 claims description 16
- 239000003990 capacitor Substances 0.000 claims description 11
- 238000004146 energy storage Methods 0.000 abstract description 80
- 230000005540 biological transmission Effects 0.000 description 20
- 238000005070 sampling Methods 0.000 description 12
- 230000006870 function Effects 0.000 description 9
- 230000008859 change Effects 0.000 description 5
- 238000010586 diagram Methods 0.000 description 5
- 239000000463 material Substances 0.000 description 5
- 238000004458 analytical method Methods 0.000 description 4
- 238000001514 detection method Methods 0.000 description 4
- 230000008054 signal transmission Effects 0.000 description 3
- 241000208340 Araliaceae Species 0.000 description 2
- 235000005035 Panax pseudoginseng ssp. pseudoginseng Nutrition 0.000 description 2
- 235000003140 Panax quinquefolius Nutrition 0.000 description 2
- 230000009471 action Effects 0.000 description 2
- 238000004364 calculation method Methods 0.000 description 2
- 238000011161 development Methods 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 235000008434 ginseng Nutrition 0.000 description 2
- 229910044991 metal oxide Inorganic materials 0.000 description 2
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Classifications
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
- H02J7/00—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L1/00—Arrangements for detecting or preventing errors in the information received
- H04L1/12—Arrangements for detecting or preventing errors in the information received by using return channel
- H04L1/16—Arrangements for detecting or preventing errors in the information received by using return channel in which the return channel carries supervisory signals, e.g. repetition request signals
- H04L1/1607—Details of the supervisory signal
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
- H02J2207/00—Indexing scheme relating to details of circuit arrangements for charging or depolarising batteries or for supplying loads from batteries
- H02J2207/30—Charge provided using DC bus or data bus of a computer
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- Engineering & Computer Science (AREA)
- Computer Networks & Wireless Communication (AREA)
- Signal Processing (AREA)
- Power Engineering (AREA)
- Charge And Discharge Circuits For Batteries Or The Like (AREA)
Abstract
The application relates to a communication control circuit, a control method and a control device thereof, and an air conditioner. And when the communication control circuit is in a communication state and is communicated with an external lower computer, the controller can receive feedback information of the lower computer in real time, and when the feedback information is not received within a preset time period, the controller controls the communication control circuit to enter a charging state again, so that the charging and communication control operation of the communication control circuit is realized in a circulating reciprocating manner. According to the scheme, the electric energy stored by the energy storage element can be utilized to the maximum extent, so that the longest communication time after each charging is ensured, and the communication method has the advantage of high communication efficiency.
Description
Technical field
This application involves fields of communication technology, more particularly to a kind of communication control circuit and its control method, device, sky
Adjust device.
Background technique
RS485 bus is widely used in work due to having many advantages, such as long transmission distance, strong antijamming capability and at low cost
The fields such as industry control and air conditioner.With the development of science and technology, RS485 bus is also two cores by original four line traffic controls development
Communication, by the transmission of two core wires completion power supply and signal of communication, relative to four line traffic controls, with consumptive material, few, at low cost, engineering is pacified
The advantages such as dress is simple and failure rate is low.
When being communicated by two core RS485 buses, traditional communication control method uses the control plan of time-sharing multiplex
The switching for slightly being communicated and being powered.However, the charging time is fixed with call duration time in traditional communication control mode
, after may result in a communication cycle, even if remaining storage electric energy still is able to be powered operation, also can by force into
Enter charged state.Therefore, traditional communication control method haves the shortcomings that communication efficiency is low.
Summary of the invention
Based on this, it is necessary to for the low problem of traditional communication control method communication efficiency, provide a kind of communication control
Circuit and its control method, device, air conditioner.
A kind of control method of communication control circuit, which comprises when communication control circuit is in charged state,
Obtain the state parameter of the charging circuit of communication control circuit；When the state parameter is less than or equal to predetermined reference parameters,
The communication control circuit is switched to the feedback information that slave computer is sent outside communications status and real-time reception；Work as preset duration
When not receiving feedback information inside, the communication control circuit is switched to charged state.
In one embodiment, described when communication control circuit is in charged state, obtain filling for communication control circuit
After the step of state parameter of circuit, further includes: when the charge parameter is greater than the predetermined reference parameters, return to institute
The step of stating the state parameter for obtaining the charging circuit of communication control circuit.
In one embodiment, the state parameter is charging current, described when communication control circuit is in charged state
When, the step of obtaining the state parameter of the charging circuit of communication control circuit, comprising: when communication control circuit is in charged state
When, obtain the voltage of the charging circuit of communication control circuit；The charging current of communication control circuit is obtained according to the voltage.
A kind of control device of communication control circuit, described device includes: that state parameter obtains module, for when communication control
When circuit processed is in charged state, the state parameter of the charging circuit of communication control circuit is obtained；Switching module is communicated, for working as
When the state parameter is less than or equal to predetermined reference parameters, the communication control circuit is switched to communications status and is connect in real time
Receive the feedback information that external slave computer is sent；Charge switching module, for inciting somebody to action when not receiving feedback information in preset duration
The communication control circuit is switched to charged state.
A kind of communication control circuit, comprising: controller, sample circuit, charging circuit and telecommunication circuit, the controller with
The sample circuit, the charging circuit and telecommunication circuit connection, the sample circuit also connect with the charging circuit
It connects, the charging circuit connects external two core needle seats with the telecommunication circuit；The sample circuit is used in charged state, is adopted
Collect the state parameter of charging circuit and be sent to controller, the controller is used to carry out communication control according to above-mentioned method.
In one embodiment, the sample circuit includes first resistor, second resistance and first capacitor, first electricity
One end of resistance connect one end of the first capacitor and common end connection controller, the first resistor the other end connection described in
One end and common end of second resistance connect charging circuit, and the other end of the second resistance connects the another of the first capacitor
End and common end grounding.
In one embodiment, the charging circuit includes first switch tube, second switch, third switching tube, the 4th
Switching tube, 3rd resistor, the 4th resistance, the 5th resistance, the 6th resistance, the 7th resistance and the 8th resistance, the 3rd resistor
One end connects one end of the 4th resistance and common end connection controller, the other end connection described first of the 3rd resistor
The control terminal of switching tube, the input terminal of the first switch tube connect one end of the 5th resistance, the 5th resistance it is another
One end connects external power supply, and the output end of the first switch tube connects the control terminal of the second switch, and described second opens
The output end for closing pipe connects the other end of the first resistor, and the input terminal of the second switch connects the two core needles seat
The other end of second end, the 4th resistance connects one end of the 6th resistance and common end connects the third switching tube
Control terminal, the output end of the third switching tube connect the other end and common end grounding of the 6th resistance, and the third is opened
The input terminal for closing pipe connects described 7th resistance one end, the other end of the 7th resistance connect one end of the 8th resistance and
Common end connects the control terminal of the 4th switching tube, and the other end of the 8th resistance connects the input of the 4th switching tube
It holds and common end connects external charging power supply, the output end of the 4th switching tube connects the first end of the two core needles seat.
In one embodiment, the telecommunication circuit includes the 9th resistance, the tenth resistance, eleventh resistor and communication core
Piece, one end of the 9th resistance connect the receiver output enable end of the communication chip, the other end of the 9th resistance
Ground connection, one end of the tenth resistance connects the driver input end of the communication chip and common end connects the controller,
One end of the eleventh resistor connects the receiver output end of the communication chip and common end connects the controller, described
The other end of tenth resistance connects the other end of the eleventh resistor and common end connection external power supply, the communication chip
Driver enable end connects the controller, and the first output end of the communication chip connects the first end of the two core needles seat,
The second output terminal of the communication chip connects the second end of the two core needles seat, and the power end of the communication chip connects external
Power supply, the ground terminal ground connection of the communication chip.
In one embodiment, the communication chip is RS485 chip.
A kind of air conditioner, including line control machine and above-mentioned communication control circuit, the communication control circuit passes through two cores
Needle stand connects the line control machine.
Above-mentioned communication control circuit and its control method, device, air conditioner, when communication control circuit is in charged state
When external energy-storage travelling wave tube is charged, controller can obtain the state parameter of the charging circuit of communication control circuit simultaneously in real time
It is analyzed, when state parameter is less than or equal to predetermined reference parameters, illustrates that the charging of energy-storage travelling wave tube is basically completed, this time control
Device processed will control communication control circuit and be switched to communications status.And when communication control circuit is in communications status and outer subordinate
For position machine when being communicated, controller is capable of the feedback information of real-time reception slave computer, when being not received by feedback in preset duration
Information illustrates the electric energy of energy-storage travelling wave tube storage at this time already below the minimum operating voltage of slave computer, and controller will control logical
Letter control circuit is again introduced into charged state, with this progresss that move in circles, realizes that charging to communication control circuit is controlled with communicating
System operation.Through the above scheme, the electric energy that energy-storage travelling wave tube stores can be utilized to the greatest extent, to guarantee to charge each time
Communication time longest after the completion, has the advantages that communication efficiency is high compared with traditional communication control method.
Detailed description of the invention
Fig. 1 is the control method flow diagram of communication control circuit in an embodiment；
Fig. 2 is the control method flow diagram of communication control circuit in another embodiment；
Fig. 3 is the control method flow chart of communication control circuit in an embodiment；
Fig. 4 is the controling device structure diagram of communication control circuit in an embodiment；
Fig. 5 is communication control circuit structural schematic diagram in an embodiment；
Fig. 6 is communication control circuit structural schematic diagram in another embodiment.
Specific embodiment
The application in order to facilitate understanding is described more fully the application below with reference to relevant drawings.In attached drawing
Give the preferred embodiment of the application.But the application can realize in many different forms, however it is not limited to herein
Described embodiment.On the contrary, purpose of providing these embodiments is keeps the understanding to disclosure of this application more saturating
It is thorough comprehensive.
Referring to Fig. 1, a kind of control method of communication control circuit, including step S100, step S200 and step S300.
Step S100 obtains the shape of the charging circuit of communication control circuit when communication control circuit is in charged state
State parameter.
Specifically, for the telecommunication circuit powered with communicate time-sharing multiplex, the transmission of electric current is carried out whithin a period of time, and
The transmission of signal of communication is then carried out within the other end time, to reduce cable consumptive material and significantly reduce engineering
Complexity, be widely used in industrial control field.Communication control circuit is to pass through time-sharing multiplex strategy, is both able to achieve
It is powered operation for slave computer, and is able to achieve the circuit for carrying out communications with slave computer, it is main including charging circuit and logical
Believe circuit two parts.When communication control circuit is in charged state, charging circuit is in the conductive state, and power-on circuit is then located
It is that corresponding energy-storage travelling wave tube charges in slave computer by charging circuit in off state.When the electric energy of energy-storage travelling wave tube storage
When moving closer to saturation, the corresponding state parameter of charging circuit also can gradually change.Therefore, according to the control circuit of acquisition
The corresponding state parameter of middle charging circuit is analyzed, it can judges whether the electric energy of energy-storage travelling wave tube storage reaches maximum value.
It is appreciated that the type of the state parameter obtained is not uniquely, as long as energy storage can be obtained according to the state parameter of acquisition
Whether the electric energy of element storage reaches saturation state, for example, it may be the charging current or charging voltage of charging circuit
Deng.
Communication control circuit is switched to communication when state parameter is less than or equal to predetermined reference parameters by step S200
The feedback information that slave computer is sent outside state and real-time reception.
Specifically, when predetermined reference parameters are that energy-storage travelling wave tube is charged by charging circuit, the electric energy stored reaches
The parameter value of corresponding charging circuit when saturation.It is appreciated that the size of predetermined reference parameters is not unique, specific value
It can be configured by user according to the working condition of practical charging circuit.When state parameter is less than or equal to predetermined reference parameters
When, illustrate that the charging operations of charging circuit at this time have been basically completed, the electric energy that energy-storage travelling wave tube may store has reached the maximum
Value, controller will control charging circuit shutdown at this time, and control telecommunication circuit conducting is that slave computer is supplied by energy-storage travelling wave tube
Electricity, telecommunication circuit will be communicated directly with slave computer, realize traffic operation.
It should be pointed out that after slave computer receives signal of communication feedback information, controller can be sent to controller
It can determine whether that the communication information has been received in slave computer according to feedback information.The type of feedback information be not it is unique, can be with
It is the feedback signal that the communication information has been received in a simple slave computer, is also possible to comprising certain unit informations or sets
The data of confidence breath, as long as slave computer is sent to the information of controller, controller can receive slave computer hair
The feedback information sent is learnt to be normally carried out between slave computer and controller at this time and be communicated.
Communication control circuit is switched to charged state when not receiving feedback information in preset duration by step S300.
Specifically, after controller receives the feedback information of slave computer transmission, timing can be carried out with preset duration, if
Before timing terminates, i.e., in preset duration, controller receives the feedback information of slave computer transmission again, then illustrates at this time
The electric energy of energy storage device storage is greater than the minimum operating voltage of slave computer, remains to offer electric energy and slave computer and controller are carried out
Communication.If at the end of preset duration, controller then illustrates that slave computer stops still without the feedback information for receiving slave computer transmission
Operation, as slave computer does not have enough electric energy to maintain its operation, and controller will turn off telecommunication circuit at this time, opens simultaneously and fills
Circuit is energy-storage travelling wave tube charging again by charging circuit.Likewise, the size of preset duration is not uniquely, specifically
It can be configured by user according to the application scenarios etc. of communication control circuit, not received as long as can react in preset duration
When feedback information, energy storage device storage electric energy can not position slave computer normal work.
It should be pointed out that in one embodiment, slave computer can carry out the supply voltage of energy-storage travelling wave tube in real time
Detection operation, the minimum operating voltage of the supply voltage of energy-storage travelling wave tube and slave computer is compared and analyzed, when the supply voltage
Greater than minimum operating voltage, illustrate that slave computer can be normally carried out communication work at this time, when slave computer receives signal of communication
Feedback information being sent to controller and informing controller, communication is normally carried out at this time.When supply voltage is less than or equal to minimum work
When making voltage, illustrate that the electric energy of energy-storage travelling wave tube storage at this time is too low, slave computer will not be in preset duration and send to controller
Feedback information, controller will control communication control circuit and enter charged state at this time, that is, returns to repeat and works as communication control
When circuit is in charged state, obtain communication control circuit state parameter and subsequent operation.
Further, in one embodiment, after step S100 further include: when state parameter is greater than predetermined reference parameters
When, return obtain communication control circuit charging circuit state parameter the step of.
Specifically, when state parameter is greater than predetermined reference parameters, illustrate that charging circuit is not still by energy storage member at this time
Part is full of.Controller will maintain the working condition of communication control circuit constant, that is, be still control charging circuit conducting, control
Telecommunication circuit is closed, and the operation for energy-storage travelling wave tube charging is continued to execute, and at the same time obtaining the state parameter of charging circuit and pre-
If reference parameter compares and analyzes.The acquisition of the state parameter of charging circuit is real-time perfoming, and will be obtained in real time
State parameter compared and analyzed with predetermined reference parameters, when there is state parameter less than or equal to predetermined reference parameters,
Controller can be learnt immediately.
Referring to Fig. 2, in one embodiment, state parameter is charging current, step S100 includes step S110 and step
Rapid S120.Step S110 obtains the electricity of the charging circuit of communication control circuit when communication control circuit is in charged state
Pressure；Step S120 obtains the charging current of communication control circuit according to voltage.
Specifically, when obtaining the state parameter of charging circuit, charging is collected according to corresponding sample circuit first
The voltage of circuit, then will collect voltage be sent to controller carry out analytical calculation corresponding charging current can be obtained,
As corresponding state parameter.It should be pointed out that in the present embodiment, the acquisition of charging current be by sample circuit come into
Capable, sample circuit is connected by the I/O port of the AD sampling functions with sampling functions with controller, is adopted when electric current flows through
When sample resistance, certain pressure drop can be generated on resistance, according to formula U=IR, since resistance is fixed, voltage and electric current are at just
Than voltage is also bigger when electric current is bigger, otherwise the smaller then electric current of voltage is smaller.Therefore, pass through the size of detection voltage, so that it may
Calculate actual size of current.In the present embodiment, corresponding predetermined reference parameters are preset reference electric current, it is only necessary to will
The charging current being calculated is compared and analyzed with preset reference electric current, then carries out communication control circuit based on the analysis results
Working condition switching.It is appreciated that in other embodiments, can also be and carry out communication control by another way
The acquisition of charging current when circuit charged state processed operates, if can in real time by corresponding data be sent to controller with
Preset reference electric current compares and analyzes, such as directlys adopt the sampling A/D chip with current sample function and realize.
It should be pointed out that in one embodiment, state parameter can also be the voltage of charging circuit.It will be filled with above-mentioned
Electric current and preset reference electric current compare and analyze in the present embodiment, the sampling that will directly be collected by sample circuit
Ohmically pressure drop is sent to controller, and controller is compared and analyzed according to the pressure drop with predetermined reference voltage.When charging electricity
When the voltage on road is less than or equal to predetermined reference voltage, it is switched to communications status.
The application in order to facilitate understanding is explained the application below with reference to specific embodiment.Please refer to figure
3, when charging circuit powers on, i.e., charging circuit starts as bottom when charging circuit is in the conductive state under the action of controller
The energy-storage travelling wave tube of machine carries out charging process, at this time controller will the acquisition of real-time reception sample circuit charging circuit voltage
Value, and carried out that corresponding charging current I is calculated according to voltage value.Then by charging current I and preset reference electric current I0 into
Row comparative analysis, as I≤I0, illustrate energy-storage travelling wave tube charging complete controller will control communication control circuit enter it is logical
Letter state.As I > I0, illustrates that energy-storage travelling wave tube remains unfulfilled charging, charged state will be kept at this time, and carry out in real time
The detection of charging current operates.After being switched to communications status, slave computer provides electric energy by energy-storage travelling wave tube, and slave computer receives
The signal of communication Shi Junhui that controller is sent sends a feedback information to controller, and slave computer can detect storage in real time
The voltage value Uc of energy element.When Uc is less than or equal to the minimum operating voltage Umin of slave computer, illustrate energy-storage travelling wave tube at this time
The electric energy of storage runs out of substantially, and slave computer will stop sending feedback information to controller at this time, and controller is when default
It is not received by feedback information in long T, then communications status can be switched to charged state, is again energy-storage travelling wave tube charging, carries out
The charging of next round and traffic operation.If Uc is greater than Umin, illustrate that the electric energy of energy-storage travelling wave tube storage still is able to remain normal
Traffic operation, controller still is able to receive feedback information at this time, and communication control circuit is still in communications status, until going out
Until existing Uc is less than or equal to Umin.
The control method of above-mentioned communication control circuit, when communication control circuit be in charged state be external energy-storage travelling wave tube into
When row charging, controller can obtain the state parameter of the charging circuit of communication control circuit in real time and be analyzed, and work as shape
When state parameter is less than or equal to predetermined reference parameters, illustrate that the charging of energy-storage travelling wave tube is basically completed, controller will control at this time
Communication control circuit is switched to communications status.And it is communicated when communication control circuit is in communications status with external slave computer
When, the feedback information that controller is capable of real-time reception slave computer illustrates at this time when being not received by feedback information in preset duration
For the electric energy of energy-storage travelling wave tube storage already below the minimum operating voltage of slave computer, controller will control communication control circuit again
Into charged state, with this progress that moves in circles, realize that the charging and communication control to communication control circuit operate.By above-mentioned
Scheme can utilize to the greatest extent the electric energy that energy-storage travelling wave tube stores, thus when guaranteeing the communication after charging complete each time
Long longest has the advantages that communication efficiency is high compared with traditional communication control method.
Referring to Fig. 4, a kind of control device of communication control circuit, comprising: state parameter obtains module 100, communication is cut
Change the mold block 200 and charging switching module 300.
State parameter obtains module 100 and is used for when communication control circuit is in charged state, obtains communication control circuit
Charging circuit state parameter.
Specifically, for the telecommunication circuit powered with communicate time-sharing multiplex, the transmission of electric current is carried out whithin a period of time, and
The transmission of signal of communication is then carried out within the other end time, to reduce cable consumptive material and significantly reduce engineering
Complexity, be widely used in industrial control field.Communication control circuit is to pass through time-sharing multiplex strategy, is both able to achieve
It is powered operation for slave computer, and is able to achieve the circuit for carrying out communications with slave computer, it is main including charging circuit and logical
Believe circuit two parts.When communication control circuit is in charged state, charging circuit is in the conductive state, and power-on circuit is then located
It is that corresponding energy-storage travelling wave tube charges in slave computer by charging circuit in off state.State parameter refers to charging circuit
Electric current and the parameters such as voltage, when the electric energy of energy-storage travelling wave tube storage moves closer to saturation, the corresponding state parameter of charging circuit
Also it can gradually change.Therefore, it is analyzed according to the corresponding state parameter of charging circuit in the control circuit of acquisition
To judge whether the electric energy of energy-storage travelling wave tube storage reaches maximum value.It is appreciated that the type of the state parameter obtained is not only
One, as long as whether the electric energy that energy-storage travelling wave tube storage can be obtained according to the state parameter of acquisition reaches saturation state, example
Such as, charging current or the charging voltage etc. of charging circuit be can be.
Switching module 200 is communicated to be used for when state parameter is less than or equal to predetermined reference parameters, by communication control circuit
It is switched to the feedback information that slave computer is sent outside communications status and real-time reception.
Specifically, when predetermined reference parameters are that energy-storage travelling wave tube is charged by charging circuit, the electric energy stored reaches
The parameter value of corresponding charging circuit when saturation.It is appreciated that the size of predetermined reference parameters is not unique, specific value
It can be configured by user according to the working condition of practical charging circuit.When state parameter is less than or equal to predetermined reference parameters
When, illustrate that the charging operations of charging circuit at this time have been basically completed, the electric energy that energy-storage travelling wave tube may store has reached the maximum
Value, controller will control charging circuit shutdown at this time, and control telecommunication circuit conducting is that slave computer is supplied by energy-storage travelling wave tube
Electricity, telecommunication circuit will be communicated directly with slave computer, realize traffic operation.
The switching module 300 that charges is used for when not receiving feedback information in preset duration, and communication control circuit is switched
For charged state.
Specifically, after controller receives the feedback information of slave computer transmission, timing can be carried out with preset duration, if
Before timing terminates, i.e., in preset duration, controller receives the feedback information of slave computer transmission again, then illustrates at this time
The electric energy of energy storage device storage is greater than the minimum operating voltage of slave computer, remains to offer electric energy and slave computer and controller are carried out
Communication.If at the end of preset duration, controller then illustrates that slave computer stops still without the feedback information for receiving slave computer transmission
Operation, as slave computer does not have enough electric energy to maintain its operation, and controller will turn off telecommunication circuit at this time, opens simultaneously and fills
Circuit is energy-storage travelling wave tube charging again by charging circuit.Likewise, the size of preset duration is not uniquely, specifically
It can be configured by user according to the application scenarios etc. of communication control circuit, not received as long as can react in preset duration
When feedback information, energy storage device storage electric energy can not position slave computer normal work.
In one embodiment, communication switching module 200 is also used to return when state parameter is greater than predetermined reference parameters
Obtain the operation of the state parameter of the charging circuit of communication control circuit.
Specifically, when state parameter is greater than predetermined reference parameters, illustrate that charging circuit is not still by energy storage member at this time
Part is full of.Controller will maintain the working condition of communication control circuit constant, that is, be still control charging circuit conducting, control
Telecommunication circuit is closed, and the operation for energy-storage travelling wave tube charging is continued to execute, and at the same time obtaining the state parameter of charging circuit and pre-
If reference parameter compares and analyzes.The acquisition of the state parameter of charging circuit is real-time perfoming, and will be obtained in real time
State parameter compared and analyzed with predetermined reference parameters, when there is state parameter less than or equal to predetermined reference parameters,
Controller can be learnt immediately.
In one embodiment, state parameter is charging current, and state parameter obtains module 100 and is also used to work as communication control
When circuit is in charged state, the voltage of the charging circuit of communication control circuit is obtained；Communication control circuit is obtained according to voltage
Charging current.
Specifically, when obtaining the state parameter of charging circuit, charging is collected according to corresponding sample circuit first
The voltage of circuit, then will collect voltage be sent to controller carry out analytical calculation corresponding charging current can be obtained,
As corresponding state parameter.It should be pointed out that in the present embodiment, the acquisition of charging current be by sample circuit come into
Capable, sample circuit is connected by the I/O port of the AD sampling functions with sampling functions with controller, is adopted when electric current flows through
When sample resistance, certain pressure drop can be generated on resistance, according to formula U=IR, since resistance is fixed, voltage and electric current are at just
Than voltage is also bigger when electric current is bigger, otherwise the smaller then electric current of voltage is smaller.Therefore, pass through the size of detection voltage, so that it may
Calculate actual size of current.In the present embodiment, corresponding predetermined reference parameters are preset reference electric current, it is only necessary to will
The charging current being calculated is compared and analyzed with preset reference electric current, then carries out communication control circuit based on the analysis results
Working condition switching.It is appreciated that in other embodiments, can also be and carry out communication control by another way
The acquisition of charging current when circuit charged state processed operates, if can in real time by corresponding data be sent to controller with
Preset reference electric current compares and analyzes, such as directlys adopt the sampling A/D chip with current sample function and realize.
The control device of above-mentioned communication control circuit, when communication control circuit be in charged state be external energy-storage travelling wave tube into
When row charging, controller can obtain the state parameter of the charging circuit of communication control circuit in real time and be analyzed, and work as shape
When state parameter is less than or equal to predetermined reference parameters, illustrate that the charging of energy-storage travelling wave tube is basically completed, controller will control at this time
Communication control circuit is switched to communications status.And it is communicated when communication control circuit is in communications status with external slave computer
When, the feedback information that controller is capable of real-time reception slave computer illustrates at this time when being not received by feedback information in preset duration
For the electric energy of energy-storage travelling wave tube storage already below the minimum operating voltage of slave computer, controller will control communication control circuit again
Into charged state, with this progress that moves in circles, realize that the charging and communication control to communication control circuit operate.By above-mentioned
Scheme can utilize to the greatest extent the electric energy that energy-storage travelling wave tube stores, thus when guaranteeing the communication after charging complete each time
Long longest has the advantages that communication efficiency is high compared with traditional communication control method.
Referring to Fig. 5, a kind of communication control circuit, comprising: controller 10, sample circuit 20, charging circuit 30 and communication
Circuit 40, controller 10 are connect with sample circuit 20, charging circuit 30 and telecommunication circuit 40, and sample circuit 20 is also electric with charging
Road 30 connects, and charging circuit 30 and telecommunication circuit 40 connect two core needle seat CN2 of outside, and sample circuit 20 is used in charged state
When, it acquires the charging current of charging circuit 30 and is sent to controller 10, controller 10 according to above-mentioned method for being led to
Letter control.
Specifically, for the telecommunication circuit 40 powered with communicate time-sharing multiplex, the transmission of electric current is carried out whithin a period of time,
And the transmission of signal of communication is then carried out within the other end time, to reduce cable consumptive material and significantly reduce work
The complexity of journey, is widely used in industrial control field.Communication control circuit is to pass through time-sharing multiplex strategy, Ji Nengshi
It now is powered operation for slave computer, and is able to achieve the circuit for carrying out communications with slave computer, mainly includes charging circuit 30
With 40 two parts of telecommunication circuit.When communication control circuit is in charged state, charging circuit 30 is in the conductive state, and is powered
Circuit is then in an off state, is that corresponding energy-storage travelling wave tube charges in slave computer by charging circuit 30.Work as energy-storage travelling wave tube
When the electric energy of storage moves closer to saturation, the corresponding state parameter of charging circuit 30 also can gradually change.Therefore, according to obtaining
The corresponding state parameter of charging circuit 30 in the control circuit taken, it can judge whether the electric energy of energy-storage travelling wave tube storage reaches most
Big value.It is appreciated that the type of the state parameter obtained is not uniquely, as long as can be obtained according to the state parameter of acquisition
Whether the electric energy of energy-storage travelling wave tube storage reaches saturation state, for example, it may be the charging current of charging circuit 30 or filling
Piezoelectric voltage etc..
When state parameter is less than or equal to predetermined reference parameters, communication control circuit is switched to communications status and real-time
Receive the feedback information that external slave computer is sent.When predetermined reference parameters are that energy-storage travelling wave tube is charged by charging circuit 30,
The electric energy stored reaches the parameter value of corresponding charging circuit 30 when saturation.It is appreciated that the size of predetermined reference parameters is simultaneously
It is not uniquely, specific value can be configured by user according to the working condition of practical charging circuit 30.Work as state parameter
When less than or equal to predetermined reference parameters, illustrate that the charging operations of charging circuit 30 at this time have been basically completed, energy-storage travelling wave tube institute
The electric energy that can be stored has reached the maximum value, and controller 10 will control the shutdown of charging circuit 30 at this time, controls telecommunication circuit 40
Conducting, is powered by energy-storage travelling wave tube for slave computer, and telecommunication circuit 40 will be communicated directly with slave computer, realizes communication
Operation.
When state parameter is greater than predetermined reference parameters, the state ginseng for obtaining the charging circuit 30 of communication control circuit is returned
Several operations.When state parameter is greater than predetermined reference parameters, illustrate that charging circuit 30 does not still fill energy-storage travelling wave tube at this time
It is full.Controller 10 will maintain the working condition of communication control circuit constant, that is, be still that control charging circuit 30 is connected, control
Telecommunication circuit 40 is closed, and the operation for energy-storage travelling wave tube charging is continued to execute, and is acquired and is sent and at the same time obtaining sample circuit 20
State parameter compared and analyzed with predetermined reference parameters.The acquisition of the state parameter of charging circuit 30 is real-time perfoming,
And obtained state parameter is compared and analyzed with predetermined reference parameters in real time, is less than or equal to when there is state parameter
When predetermined reference parameters, controller 10 can be learnt immediately.
It should be pointed out that feedback information, control can be sent to controller 10 after slave computer receives signal of communication
Device 10 can determine whether that the communication information has been received in slave computer according to feedback information.The type of feedback information is not unique
, it can be the simple feedback signal informed slave computer and the communication information has been received, be also possible to comprising certain machines
The data of group information or setting information, as long as slave computer is sent to the information of controller 10, controller 10 can
It learns to be normally carried out between slave computer and controller 10 at this time in the feedback information for receiving slave computer transmission and communicate.
When not receiving feedback information in preset duration, communication control circuit is switched to charged state.Work as controller
After 10 receive the feedback information of slave computer transmission, timing can be carried out with preset duration, if before timing terminates, i.e., pre-
If in duration, controller 10 receives the feedback information of slave computer transmission again, then illustrate the electric energy of energy storage device storage at this time
Greater than the minimum operating voltage of slave computer, offer electric energy is provided, slave computer is communicated with controller 10.If preset duration
At the end of, controller 10 then illustrates that slave computer is out of service still without the feedback information for receiving slave computer transmission, as the next
Machine does not have enough electric energy to maintain its operation, and controller 10 will turn off telecommunication circuit 40 at this time, opens simultaneously charging circuit 30,
It is energy-storage travelling wave tube charging again by charging circuit 30.
Referring to Fig. 6, in one embodiment, sample circuit 20 includes first resistor R1, second resistance R2 and the first electricity
Hold C2, one end and common end of one end connection first capacitor C2 of first resistor R1 connects 10 (not shown) of controller, the first electricity
It hinders one end of the other end connection second resistance R2 of R1 and common end connects charging circuit 30, the other end connection of second resistance R2
The other end and common end grounding of first capacitor C2.
Specifically, in the present embodiment, state parameter is the charging current of charging circuit 30, and sample circuit 20 includes being used for
The sampling resistor (i.e. second resistance R2) of voltage sample, a current-limiting resistance (i.e. first resistor R1) and a filter capacitor
(i.e. first capacitor C2), when sample circuit 20 passes through I/O port (the i.e. first resistor of the AD sampling functions with sampling functions
The common end of R1 and first capacitor C2) it is connected with controller 10, when electric current flows through sampling resistor, can be generated on resistance certain
Pressure drop, according to formula U=IR, since resistance is fixed, voltage is also bigger when electric current is bigger, otherwise voltage is smaller, and electric current is got over
It is small.Therefore, pass through the size of detection voltage, so that it may calculate actual size of current.In the present embodiment, corresponding default
Reference parameter is preset reference electric current, it is only necessary to compare the charging current being calculated and preset reference electric current point
Then analysis carries out the switching of the working condition of communication control circuit based on the analysis results.It is appreciated that in other embodiments
In, it can also be the acquisition behaviour of charging current when carrying out communication control circuit charged state by other types of sample circuit
Make, is compared and analyzed as long as controller can be sent to corresponding data in real time with preset reference electric current, such as
The sampling A/D chip with current sample function is directlyed adopt to realize.
Referring to Fig. 6, in one embodiment, charging circuit 30 includes first switch tube T1, second switch T2, third
Switch transistor T 3, the 4th switch transistor T 4,3rd resistor R3, the 4th resistance R4, the 5th resistance R5, the 6th resistance R6, the 7th resistance R7
With the 8th resistance R8, one end of 3rd resistor R3 connects one end of the 4th resistance R4 and common end connects controller 10, third electricity
The control terminal of the other end connection first switch tube T1 of R3 is hindered, the input terminal of first switch tube T1 connects the one of the 5th resistance R5
End, the other end of the 5th resistance R5 connect external power supply, the control of the output end connection second switch T2 of first switch tube T1
End, the other end of the output end connection first resistor R1 of second switch T2, the input terminal of second switch T2 connect two core needles
The second end of seat CN2, the other end of the 4th resistance R4 connects one end of the 6th resistance R6 and common end connects third switch transistor T 3
Control terminal, the output end of third switch transistor T 3 connects the other end and common end grounding of the 6th resistance R6, third switch transistor T 3
Input terminal connect the 7th one end resistance R7, the other end of the 7th resistance R7 connects one end of the 8th resistance R8 and common end and connects
The control terminal of 4th switch transistor T 4, the other end of the 8th resistance R8 connects the output end of the 4th switch transistor T 4 and common end connection is outer
Portion's charge power supply, the input terminal of the 4th switch transistor T 4 connect the first end of two core needle seat CN2.
Specifically, after one end of the 4th resistance R4 of one end connection of 3rd resistor R3, the common end of the two connects control
The CONTROL mouth of device 10, when the CONTROL of controller 10 mouth exports high level, entire charging circuit 30 is in the conductive state,
The external charging power supply being connected with the output end of the other end of the 8th resistance R8 and the 4th switch transistor T 4 will input certain big
Small power supply is embodied as the charging operations of the energy-storage travelling wave tube of slave computer by the power supply.With the external charging power supply for charging
For 24V, when controller 10 exports high level, power interface VIN (i.e. the 8th resistance R8 and the 4th switch transistor T 4 it is public
End) it is connected with 24V power supply (charge power supply), and be connected with the first end of two core needle seat CN2, there is the power supply of 24V in bus at this time.
And the second port of two core needle seat CN2 is at this time power-on time, takes electricity by second switch T2 and using being grounded after circuit
Side's (i.e. energy-storage travelling wave tube) can take electricity by bus, not can be carried out communication.When controller 10 exports low level, power interface VIN
It is disconnected with 24V power supply, the second port of two core needle seat CN2 is also disconnected with ground terminal, at this time without additional in bus
Power supply, normal communication can be carried out.It should be pointed out that in one embodiment, the size of external power supply is 5V.
It is appreciated that the type of first switch tube T1, second switch T2, third switch transistor T 3 and the 4th switch transistor T 4 simultaneously
It is not unique, can is MOS (Metal Oxide Semiconductor, metal-oxide semiconductor (MOS)) pipe or crystal
Triode (Bipolar Junction Transistor, BJT) etc. exports high level in controller 10 as long as can be realized
In the case of, entire charging circuit 30 is in the conductive state, and the external charging power supply connecting with the 4th switch transistor T 4 can transmit
Energy-storage travelling wave tube to slave computer is that energy-storage travelling wave tube is charged.For example, in one embodiment, first switch tube T1,
Two switch transistor Ts 2 and third switch transistor T 3 are NMOS tube, and the 4th switch transistor T 4 is PMOS tube.
It should be pointed out that the type of controller 10 is not uniquely yet, in one embodiment, controller 10 is
MCU (Microcontroller Unit, micro-control unit).MCU is also known as one chip microcomputer (Single Chip
It Microcomputer) or single-chip microcontroller, is the frequency and specification central processing unit (Central Process Unit, CPU)
Do appropriate reduction, and by the perimeter interfaces such as memory (memory), counter (Timer), USB, A/D conversion, UART, PLC, DMA,
Even LCD driving circuit all integrates the computer for forming chip-scale on a single chip, does different groups for different applications
Close control.Have the advantages that control is simple as controller 10 using MCU.
Referring to Fig. 6, in one embodiment, telecommunication circuit 40 includes the 9th resistance R9, the tenth resistance R10, the 11st
The receiver of one end connection communication chip U1 of resistance R11 and communication chip U1, the 9th resistance R9 export enable end, the 9th resistance
The other end of R9 is grounded, the driver input end of one end connection communication chip U1 of the tenth resistance R10 and common end connection control
Device 10, the receiver output end and common end connection controller 10 of one end connection communication chip U1 of eleventh resistor R11, the tenth
The other end and common end connection external power supply of the other end connection eleventh resistor R11 of resistance R10, the driving of communication chip U1
Device enable end connects controller 10, and the first output end of communication chip U1 connects the first end of two core needle seat CN2, communication chip U1
Second output terminal connect the second end of two core needle seat CN2, the power end of communication chip U1 connects external power supply, communication chip U1
Ground terminal ground connection.
Specifically, sending data end the mouth TXD, communication chip U1 of the driver input end connection controller of communication chip U1
Driver output enable end connection controller transmitting and receiving enable end DE/RE, and the receiver output end of communication chip U1
Connect the reception data port RXD of controller.When communication control circuit is in communications status, entire charging circuit 30 will be located
In off state, communication control circuit is switched to telecommunication circuit 40 and connect with two core needle seat CN2 at this time, in the effect of controller 10
It is lower to be communicated with slave computer.Communication chip U1 receiver output end and driver input end are respectively in the control that it enables control terminal
When being worked under system, controller 10 can send signal of communication to slave computer or receive the feedback information that slave computer is sent
Deng can traffic operation between slave computer and controller 10.It should be pointed out that in one embodiment, external power supply
Size is 5V.
In one embodiment, communication chip U1 is RS485 chip.That is the communication control circuit and its controlling party of the application
Method is applied in the case of RS485 bus communication, and corresponding communication chip U1 is the communication chip U1 of RS485 type.At this time
The first output end of communication chip U1 is that receiver reversely inputs and driver reversed-phase output, by two core needle seat CN2 with
RS485 bus is correspondingly connected with, and second output terminal is the non-return input of receiver and driver non-inverting output, passes through two cores
Two ports of needle stand CN2 are correspondingly connected with the two lines cable of RS485 bus respectively.When receiver output enable end inputs low electricity
Usually, allow receiver to export, when driver exports enable end input high level, driver is allowed to work, thus will communication
Signal is sent to corresponding slave computer, realizes traffic operation.
Above-mentioned communication control circuit, when it is that external energy-storage travelling wave tube is charged that communication control circuit, which is in charged state,
Controller can obtain the state parameter of the charging circuit of communication control circuit in real time and be analyzed, when state parameter is less than
Or when being equal to predetermined reference parameters, illustrating that the charging of energy-storage travelling wave tube is basically completed, controller will control communication control electricity at this time
Road is switched to communications status.And when communication control circuit, which is in communications status, to be communicated with external slave computer, controller
It is capable of the feedback information of real-time reception slave computer, when being not received by feedback information in preset duration, illustrates energy-storage travelling wave tube at this time
Already below the minimum operating voltage of slave computer, controller will control communication control circuit and be again introduced into charging the electric energy of storage
State realizes that the charging and communication control to communication control circuit operate with this progress that moves in circles.Through the above scheme, energy
It is enough to utilize the electric energy that energy-storage travelling wave tube stores to the greatest extent, thus guarantee the communication time longest after charging complete each time,
Have the advantages that communication efficiency is high compared with traditional communication control method.
A kind of air conditioner, including line control machine and above-mentioned communication control circuit, communication control circuit passes through two core needle seats
CN2 connection line control machine.
Specifically, communication control circuit is as shown in Figure 5 or Figure 6, when communication control circuit is applied to air conditioner, under corresponding
Position machine is line control machine, and line control machine is connect by two core needle seat CN2 with communication control circuit.When communication control circuit is in charging
When state, controller 10 can obtain 30 state parameter of the charging circuit of communication control circuit.For power supply with communicate point
The telecommunication circuit 40 of Shi Fuyong, carries out the transmission of electric current whithin a period of time, and signal of communication is then carried out within the other end time
Transmission be widely used in industrial control to reduce cable consumptive material and significantly reduce the complexity of engineering
In field processed.Communication control circuit is to pass through time-sharing multiplex strategy, can be embodied as line control machine and be powered operation and reality
The circuit that communications are now carried out with line control machine mainly includes 40 two parts of charging circuit 30 and telecommunication circuit.Work as communication control
When circuit is in charged state, charging circuit 30 is in the conductive state, and power-on circuit is then in an off state, passes through charging electricity
Road 30 is that corresponding energy-storage travelling wave tube charges in slave computer.When the electric energy of energy-storage travelling wave tube storage moves closer to saturation, charging
The corresponding state parameter of circuit 30 also can gradually change.Therefore, corresponding according to charging circuit 30 in the control circuit of acquisition
State parameter, it can judge energy-storage travelling wave tube storage electric energy whether reach maximum value.It is appreciated that the state parameter obtained
Type be not unique, as long as whether the electric energy that energy-storage travelling wave tube storage can be obtained according to the state parameter of acquisition reaches full
With state, for example, it may be the charging current or charging voltage etc. of charging circuit 30.
When state parameter is less than or equal to predetermined reference parameters, communication control circuit is switched to communications status and real-time
Receive the feedback information that external slave computer is sent.When predetermined reference parameters are that energy-storage travelling wave tube is charged by charging circuit 30,
The electric energy stored reaches the parameter value of corresponding charging circuit 30 when saturation.It is appreciated that the size of predetermined reference parameters is simultaneously
It is not uniquely, specific value can be configured by user according to the working condition of practical charging circuit 30.Work as state parameter
When less than or equal to predetermined reference parameters, illustrate that the charging operations of charging circuit 30 at this time have been basically completed, energy-storage travelling wave tube institute
The electric energy that can be stored has reached the maximum value, and controller 10 will control the shutdown of charging circuit 30 at this time, controls telecommunication circuit 40
Conducting, is powered by energy-storage travelling wave tube for slave computer, and telecommunication circuit 40 will be communicated directly with slave computer, realizes communication
Operation.
When state parameter is greater than predetermined reference parameters, the state ginseng for obtaining the charging circuit 30 of communication control circuit is returned
Several operations.When state parameter is greater than predetermined reference parameters, illustrate that charging circuit 30 does not still fill energy-storage travelling wave tube at this time
It is full.Controller 10 will maintain the working condition of communication control circuit constant, that is, be still that control charging circuit 30 is connected, control
Telecommunication circuit 40 is closed, and the operation for energy-storage travelling wave tube charging is continued to execute, and is acquired and is sent and at the same time obtaining sample circuit 20
State parameter compared and analyzed with predetermined reference parameters.The acquisition of the state parameter of charging circuit 30 is real-time perfoming,
And obtained state parameter is compared and analyzed with predetermined reference parameters in real time, is less than or equal to when there is state parameter
When predetermined reference parameters, controller 10 can be learnt immediately.
When not receiving feedback information in preset duration, communication control circuit is switched to charged state.Work as controller
After 10 receive the feedback information of slave computer transmission, timing can be carried out with preset duration, if before timing terminates, i.e., pre-
If in duration, controller 10 receives the feedback information of slave computer transmission again, then illustrate the electric energy of energy storage device storage at this time
Greater than the minimum operating voltage of slave computer, offer electric energy is provided, slave computer is communicated with controller 10.If preset duration
At the end of, controller 10 then illustrates that slave computer is out of service still without the feedback information for receiving slave computer transmission, as the next
Machine does not have enough electric energy to maintain its operation, and controller 10 will turn off telecommunication circuit 40 at this time, opens simultaneously charging circuit 30,
It is energy-storage travelling wave tube charging again by charging circuit 30.
Above-mentioned air conditioner, when it is that external energy-storage travelling wave tube is charged that communication control circuit, which is in charged state, controller
The state parameter of the charging circuit of communication control circuit can be obtained in real time and is analyzed, when state parameter is less than or equal to
When predetermined reference parameters, illustrate that the charging of energy-storage travelling wave tube is basically completed, controller will control communication control circuit switching at this time
For communications status.And when communication control circuit, which is in communications status, to be communicated with external slave computer, controller can be real
When receive the feedback information of slave computer and illustrate what energy-storage travelling wave tube at this time stored when being not received by feedback information in preset duration
Already below the minimum operating voltage of slave computer, controller will control communication control circuit and be again introduced into charged state electric energy,
With this progress that moves in circles, realize that the charging and communication control to communication control circuit operate.Through the above scheme, it can will store up
The electric energy of energy element storage utilizes to the greatest extent, to guarantee the communication time longest after charging complete each time, with tradition
Communication control method compared to having the advantages that communication efficiency is high.
Each technical characteristic of embodiment described above can be combined arbitrarily, for simplicity of description, not to above-mentioned reality
It applies all possible combination of each technical characteristic in example to be all described, as long as however, the combination of these technical characteristics is not deposited
In contradiction, all should be considered as described in this specification.
The several embodiments of the application above described embodiment only expresses, the description thereof is more specific and detailed, but simultaneously
The limitation to claim therefore cannot be interpreted as.It should be pointed out that coming for those of ordinary skill in the art
It says, without departing from the concept of this application, various modifications and improvements can be made, these belong to the protection of the application
Range.Therefore, the scope of protection shall be subject to the appended claims for the application patent.
Claims (10)
1. a kind of control method of communication control circuit, which is characterized in that the described method includes:
When communication control circuit is in charged state, the state parameter of the charging circuit of communication control circuit is obtained；
When the state parameter is less than or equal to predetermined reference parameters, the communication control circuit is switched to communications status simultaneously
The feedback information that slave computer is sent outside real-time reception；
When not receiving feedback information in preset duration, the communication control circuit is switched to charged state.
2. control method according to claim 1, which is characterized in that described when communication control circuit is in charged state
When, after the step of obtaining the state parameter of the charging circuit of communication control circuit, further includes:
When the charge parameter is greater than the predetermined reference parameters, the charging circuit for obtaining communication control circuit is returned
The step of state parameter.
3. control method according to claim 2, which is characterized in that the state parameter is charging current, described when logical
The step of letter control circuit is when being in charged state, obtains the state parameter of the charging circuit of communication control circuit, comprising:
When communication control circuit is in charged state, the voltage of the charging circuit of communication control circuit is obtained；
The charging current of communication control circuit is obtained according to the voltage.
4. a kind of control device of communication control circuit, which is characterized in that described device includes:
State parameter obtains module, for obtaining the charging of communication control circuit when communication control circuit is in charged state
The state parameter of circuit；
Switching module is communicated, is used for when the state parameter is less than or equal to predetermined reference parameters, by the communication control electricity
Road is switched to the feedback information that slave computer is sent outside communications status and real-time reception；
Charge switching module, for when not receiving feedback information in preset duration, the communication control circuit to be switched to
Charged state.
5. a kind of communication control circuit characterized by comprising controller, sample circuit, charging circuit and telecommunication circuit, institute
Controller is stated to connect with the sample circuit, the charging circuit and the telecommunication circuit, the sample circuit also with it is described
Charging circuit connection, the charging circuit connect external two core needle seats with the telecommunication circuit；
The sample circuit is used in charged state, is acquired the state parameter of charging circuit and is sent to controller, the control
Device processed carries out communication control for method according to claim 1-3.
6. communication control circuit according to claim 5, which is characterized in that the sample circuit includes first resistor,
Two resistance and first capacitor, one end of the first resistor connect one end of the first capacitor and common end connection controller,
The other end of the first resistor connects one end of the second resistance and common end connection charging circuit, the second resistance
The other end connects the other end and common end grounding of the first capacitor.
7. communication control circuit according to claim 6, which is characterized in that the charging circuit include first switch tube,
Second switch, third switching tube, the 4th switching tube, 3rd resistor, the 4th resistance, the 5th resistance, the 6th resistance, the 7th resistance
With the 8th resistance, one end of the 3rd resistor connects one end of the 4th resistance and common end connection controller, and described the
The other end of three resistance connects the control terminal of the first switch tube, the input terminal connection of the first switch tube the 5th electricity
One end of resistance, the other end of the 5th resistance connect external power supply, the output end connection described second of the first switch tube
The control terminal of switching tube, the output end of the second switch connect the other end of the first resistor, the second switch
Input terminal connect the second end of the two core needles seat, the other end of the 4th resistance connect one end of the 6th resistance and
Common end connects the control terminal of the third switching tube, and the output end of the third switching tube connects the another of the 6th resistance
End and common end grounding, the input terminal of the third switching tube connect described 7th resistance one end, the 7th resistance it is another
End connects one end of the 8th resistance and common end connects the control terminal of the 4th switching tube, the 8th resistance it is another
End connects the input terminal of the 4th switching tube and common end connects external charging power supply, and the output end of the 4th switching tube connects
Connect the first end of the two core needles seat.
8. communication control circuit according to claim 7, which is characterized in that the telecommunication circuit includes the 9th resistance, the
Ten resistance, eleventh resistor and communication chip, the receiver output that one end of the 9th resistance connects the communication chip make
Energy end, the other end ground connection of the 9th resistance, one end of the tenth resistance connect the driver input of the communication chip
End and common end connect the controller, one end of the eleventh resistor connect the receiver output end of the communication chip and
Common end connects the controller, and the other end of the tenth resistance connects the other end of the eleventh resistor and common end connects
External power supply is connect, the driver enable end of the communication chip connects the controller, the first output end of the communication chip
The first end of the two core needles seat is connected, the second output terminal of the communication chip connects the second end of the two core needles seat, institute
State the power end connection external power supply of communication chip, the ground terminal ground connection of the communication chip.
9. communication control circuit according to claim 8, which is characterized in that the communication chip is RS485 chip.
10. a kind of air conditioner, which is characterized in that including line control machine and the described in any item communication control electricity of claim 5-9
Road, the communication control circuit connect the line control machine by two core needle seats.
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| CN111313898A (en) * | 2020-02-26 | 2020-06-19 | 无锡泽太微电子有限公司 | Circuit and method for multiplexing data output and power supply line |
| CN111313898B (en) * | 2020-02-26 | 2022-06-24 | 无锡泽太微电子有限公司 | Circuit and method for multiplexing data output and power supply line |
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| CN110048484B (en) | 2020-10-02 |
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