CN103471201B - Communication circuit of air conditioner - Google Patents
Communication circuit of air conditioner Download PDFInfo
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- CN103471201B CN103471201B CN201210189416.3A CN201210189416A CN103471201B CN 103471201 B CN103471201 B CN 103471201B CN 201210189416 A CN201210189416 A CN 201210189416A CN 103471201 B CN103471201 B CN 103471201B
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Abstract
The invention discloses a kind of communication circuit of air conditioner, comprising: home bus; Indoor set communicating circuit, comprises indoor set home bus transceiver, is sent to described home bus, receives outdoor communication signal that described home bus transmits and be transferred to indoor set micro computer for the indoor communication signal generated by indoor set micro computer; Off-premises station communicating circuit, comprises off-premises station home bus transceiver, is sent to described home bus, receives indoor communication signal that described home bus transmits and be transferred to off-premises station micro computer for the outdoor communication signal generated by off-premises station micro computer.The present invention utilizes light current communication to replace existing air-conditioned forceful electric power communication, reduces the potential safety hazard in air-conditioning installation and use procedure.
Description
Technical field
The present invention relates to air-conditioning technical field, particularly relate to a kind of communication circuit of air conditioner.
Background technology
Current air-conditioning internal-external machine communication adopts and exchanges forceful electric power 220 volts of carrier communication circuits, described communicating circuit comprises two photo-couplers being positioned at air-conditioning internal machine and two photo-couplers being positioned at outdoor machine of air-conditioner, and the conducting of two photo-couplers of described air-conditioning internal machine and two photo-couplers of described outdoor machine of air-conditioner forms communication signal with shutoff.But this communication modes is forceful electric power communication, the installation and use of air-conditioner is made to there is certain safety problem.
Summary of the invention
(1) technical problem that will solve
The technical problem to be solved in the present invention is: provide a kind of communication circuit of air conditioner, to reach the object utilizing light current communication to replace existing air-conditioned forceful electric power communication, reduces the potential safety hazard in air-conditioning installation and use procedure.
(2) technical scheme
For solving the problem, the invention provides a kind of communication circuit of air conditioner, comprising:
Home bus, for transmitting the communication signal between indoor set communicating circuit and off-premises station communicating circuit;
Indoor set communicating circuit, comprises indoor set home bus transceiver, is sent to described home bus, receives outdoor communication signal that described home bus transmits and be transferred to indoor set micro computer for the indoor communication signal generated by indoor set micro computer;
Off-premises station communicating circuit, comprises off-premises station home bus transceiver, is sent to described home bus, receives indoor communication signal that described home bus transmits and be transferred to off-premises station micro computer for the outdoor communication signal generated by off-premises station micro computer.
Preferably, described indoor set home bus transceiver comprises:
Indoor set sending module, be connected with two signal outputs of described indoor set micro computer and two connections of described home bus respectively, for processing two indoor communication signals of two signal output inputs of described indoor set micro computer and export described two connections of described home bus after treatment respectively to respectively;
Indoor set receiver module, is connected with a signal input of described indoor set micro computer and two connections of described home bus respectively, and the outdoor communication signal on two connections receiving described home bus is also transferred to indoor set micro computer.
Preferably, described off-premises station home bus transceiver comprises:
Off-premises station sending module, be connected with two signal outputs of described off-premises station micro computer and two connections of described home bus respectively, for processing two outdoor communication signals of two signal output inputs of described off-premises station micro computer and export described two connections of described home bus after treatment respectively to respectively;
Off-premises station receiver module, is connected with a signal input of described off-premises station micro computer and two connections of described home bus respectively, and the indoor communication signal on two connections receiving described home bus is also transferred to off-premises station micro computer.
Preferably, described indoor set communicating circuit also comprises Signal analysis module, for identifying the communication signal of the outdoor input that two connections of described home bus transmit respectively.
Preferably, described Signal analysis module comprises two comparators, and the described in-phase input end of a comparator is connected with a connection of described home bus with the inverting input of another comparator; The described inverting input of a comparator is connected with another root connection of described home bus with the in-phase input end of another comparator; The output of described two comparators is connected with two other signal input of indoor set micro computer respectively.
(3) beneficial effect
The present invention utilizes home bus (homebus) transceiver to complete the communication between indoor apparatus of air conditioner and off-premises station by home bus, and then reach the object utilizing light current communication to replace existing air-conditioned forceful electric power communication, reduce the potential safety hazard in air-conditioning installation and use procedure, and communication distance is longer.
Accompanying drawing explanation
Fig. 1 is the structural representation of embodiment of the present invention indoor set communicating circuit;
Fig. 2 a is the circuit theory diagrams that the embodiment of the present invention comprises the indoor or outdoors machine home bus transceiver of chip MM1007;
Fig. 2 b is the oscillogram of each input/output signal of home bus transceiver shown in Fig. 2 a.
Detailed description of the invention
Below in conjunction with drawings and Examples, that the present invention is described in detail is as follows.
Embodiment one:
The present embodiment describes a kind of communication circuit of air conditioner, comprising:
Home bus, for transmitting the communication signal between indoor set communicating circuit and off-premises station communicating circuit;
Indoor set communicating circuit, comprises indoor set home bus transceiver, is sent to described home bus, receives outdoor communication signal that described home bus transmits and be transferred to indoor set micro computer for the indoor communication signal generated by indoor set micro computer;
Off-premises station communicating circuit, comprises off-premises station home bus transceiver, is sent to described home bus, receives indoor communication signal that described home bus transmits and be transferred to off-premises station micro computer for the outdoor communication signal generated by off-premises station micro computer.
In the present embodiment, described indoor set home bus transceiver comprises:
Indoor set sending module, be connected with two signal outputs of described indoor set micro computer and two connections of described home bus respectively, for processing two indoor communication signals of two signal output inputs of described indoor set micro computer and export described two connections of described home bus after treatment respectively to respectively;
Indoor set receiver module, is connected with a signal input of described indoor set micro computer and two connections of described home bus respectively, and the outdoor communication signal on two connections receiving described home bus is also transferred to indoor set micro computer.
In the present embodiment, described off-premises station home bus transceiver comprises:
Off-premises station sending module, be connected with two signal outputs of described off-premises station micro computer and two connections of described home bus respectively, for processing two outdoor communication signals of two signal output inputs of described off-premises station micro computer and export described two connections of described home bus after treatment respectively to respectively;
Off-premises station receiver module, is connected with a signal input of described off-premises station micro computer and two connections of described home bus respectively, and the indoor communication signal on two connections receiving described home bus is also transferred to off-premises station micro computer.
In the present embodiment, described indoor set communicating circuit also comprises Signal analysis module, for identifying the communication signal of the outdoor input that two connections of described home bus transmit respectively.
In the present embodiment, described Signal analysis module comprises two comparators, and the described in-phase input end of a comparator is connected with a connection of described home bus with the inverting input of another comparator; The described inverting input of a comparator is connected with another root connection of described home bus with the in-phase input end of another comparator; The output of described two comparators is connected with two other signal input of indoor set micro computer respectively.
With more specifically embodiment, communicating circuit of the present invention and the means of communication are described in detail below:
Embodiment two:
The present embodiment includes the content of embodiment one, but more specifically, as shown in Figure 1, the circuit part wherein in dotted line frame is described Signal analysis module to the indoor communicating circuit recorded in the present embodiment.In the present embodiment, the circuit part stayed after the Signal analysis module that outdoor communicating circuit and indoor communicating circuit remove in dotted line frame is identical.
In the present embodiment, described indoor set and off-premises station home bus transceiver are driven by home bus (homebus) and receiving chip MM1007 is formed, and this chip defers to homebus communication criterion, can realize receiving and sending data-signal.As shown in Fig. 1 and Fig. 2 a, described chip MM1007 comprise respectively with two signal outputs of micro computer---the first micro computer signal input pin INA that micro computer 5 mouthfuls and micro computer 4 mouthfuls are connected and the second micro computer signal input pin INB, the the first signal output pin OUTA be connected with two connection connecting pins 1 and 2 of the communication terminal CN13 of home bus respectively and secondary signal output pin OUTB, the the first signal input pin IN1 be connected with two connection connecting pins 1 and 2 of the communication terminal CN13 of described home bus respectively and secondary signal output pin IN2, and with a signal input---the micro computer signal output pin dataout that micro computer 3 mouthfuls is connected of micro computer.
The communication signal inputted by described micro computer 5 mouthfuls and micro computer 4 mouthfuls after the transtation mission circuit process in described chip MM1007, then is sent to communication terminal CN13 through described first signal output pin OUTA and secondary signal output pin OUTB and finally arrives home bus.The signal received from home bus through communication terminal CN13 arrives the receiving circuit in described chip MM1007 through described first signal input pin IN1 and secondary signal output pin IN2, be sent to described micro computer 3 mouthfuls through micro computer signal output pin dataout after treatment, finally arrive micro computer.The input/output signal oscillogram of each pin of chip MM1007 as shown in Figure 2 b.
For indoor set communicating circuit, it also comprises the Signal analysis module shown in Fig. 1 dotted line frame.As can be seen from Figure 1, two comparators of the Signal analysis module in the present embodiment are made up of two of comparator LM358 inside separate comparators.When the level that wherein the in-phase input end IN+ of two comparators inputs is greater than the level of inverting input IN-input, the output of output OUT1, OUT2 of comparator is identical with the power supply VCC of comparator; When the level of the in-phase input end IN+ input of comparator is less than the level of inverting input IN-input, the output of output OUT1, OUT2 of comparator is identical with the ground GND of comparator.The signal that output OUT1, OUT2 of two comparators export is respectively by two signal inputs of micro computer---and micro computer 2 mouthfuls and micro computer 1 mouthful export micro computer to, are used for judging that the signal that two connections of home bus transmit is corresponding with which micro computer signal output respectively.
In the present embodiment, the sending method of data 0: data 0 need the first micro computer signal input pin INA and the second micro computer signal input pin INB that are alternately input to chip MM1007.In 1 frame data, need the start bit of each byte (data 0) to be input to the first micro computer signal input pin INA, data 0 are following closely input to the second micro computer signal input pin INB, and later data 0 are also alternately send.
The sending method of data 1: the first micro computer signal input pin INA and the second micro computer signal input pin INB that data 1 are input to simultaneously chip MM1007.
Be described to transmit data 11001010 below, the start bit 0 of data in the present embodiment, stop bits 1.
First transmit start bit 0: micro computer 5 mouthfuls of output low levels, micro computer 4 mouthfuls exports high level, the first signal output pin OUTA of chip MM1007 exports high level, secondary signal output pin OUTB output low level, 1 pin signal on communication terminal CN13 is lower than 2 pin signals, communication signal on communication terminal CN13 is connected on two comparators in comparator LM358, makes micro computer 1 mouthful of low level, micro computer 2 mouthfuls of high level of exporting.Namely micro computer 5 mouthfuls of output low levels are to chip MM1007, then through micro computer 1 mouthful of input low level to micro computer; Micro computer 4 mouthfuls exports high level to chip MM1007, then micro computer 2 mouthfuls of input high levels are to micro computer.Here can think that micro computer 1 mouthful is the first signal output pin OUTA of chip MM1007, micro computer 2 mouthfuls is the secondary signal output pin OUTB of chip MM1007, be the first micro computer signal input pin INA of chip MM1007 according to micro computer 5 during transmission, micro computer 4 is that the second micro computer signal input pin INB of chip MM1007 sends.Micro computer 3 mouthfuls is low level.
First that transmits data is again rightmost position 0: micro computer 5 mouthfuls exports high level, and micro computer 4 mouthfuls of output low levels, the first signal output pin OUTA output low level of chip MM1007, secondary signal output pin OUTB exports high level.Micro computer 3 mouthfuls is low level.
Transmit the second 1 of data again: micro computer 5 mouthfuls exports high level, micro computer 4 mouthfuls exports high level, and the first signal output pin OUTA of chip MM1007 exports intermediate level, and secondary signal output pin OUTB exports intermediate level.Micro computer 3 mouthfuls is high level.
The 3rd 0 that transmits data again: micro computer 5 mouthfuls exports high level, and micro computer 4 mouthfuls of output low levels, the first signal output pin OUTA output low level of chip MM1007, secondary signal output pin OUTB exports high level.Micro computer 3 mouthfuls is low level.
The 4th 1 that transmits data again: micro computer 5 mouthfuls exports high level, micro computer 4 mouthfuls exports high level, and the first signal output pin OUTA of chip MM1007 exports intermediate level, and secondary signal output pin OUTB exports intermediate level.Micro computer 3 mouthfuls is high level.
The 5th 0 that transmits data again: micro computer 5 mouthfuls exports high level, and micro computer 4 mouthfuls of output low levels, the first signal output pin OUTA output low level of chip MM1007, secondary signal output pin OUTB exports high level.Micro computer 3 mouthfuls is low level.
The 6th 0 that transmits data again: micro computer 5 mouthfuls of output low levels, micro computer 4 mouthfuls exports high level, and the first signal output pin OUTA of chip MM1007 exports high level, secondary signal output pin OUTB output low level.Micro computer 3 mouthfuls is low level.
The 7th 1 that transmits data again: micro computer 5 mouthfuls exports high level, micro computer 4 mouthfuls exports high level, and the first signal output pin OUTA of chip MM1007 exports intermediate level, and secondary signal output pin OUTB exports intermediate level.Micro computer 3 mouthfuls is high level.
The 8th 1 that transmits data again: micro computer 5 mouthfuls exports high level, micro computer 4 mouthfuls exports high level, and the first signal output pin OUTA of chip MM1007 exports intermediate level, and secondary signal output pin OUTB exports intermediate level.Micro computer 3 mouthfuls is high level.
Transmit stop bits 1 again: micro computer 5 mouthfuls exports high level, micro computer 4 mouthfuls exports high level, and the first signal output pin OUTA of chip MM1007 exports intermediate level, and secondary signal output pin OUTB exports intermediate level.Micro computer 3 mouthfuls is high level.
Sum up above content: when the first micro computer signal input pin INA of chip MM1007 is low level, the second micro computer signal input pin INB is high level, and micro computer signal output pin dataout is low level; When the first micro computer signal input pin INA of chip MM1007 is high level, the second micro computer signal input pin INB is low level, and micro computer signal output pin dataout is low level; When the first micro computer signal input pin INA of chip MM1007 is high level, the second micro computer signal input pin INB is high level, and micro computer signal output pin dataout is high level.Low level signal on first micro computer signal input pin INA and the second micro computer signal input pin INB needs alternately to export.
For whole communicating circuit, the signal exported by indoor set micro computer in indoor set communicating circuit arrives indoor set home bus transceiver through micro computer 4 mouthfuls and micro computer 5 mouthfuls---after chip MM1007, arrive communication terminal CN13 via its first and second signals output pin OUTA, OUTB, then transmit on the connection of home bus; The first signal input pin IN1 of the off-premises station home bus transceiver in off-premises station communicating circuit---another chip MM1007 is connected with two connections of home bus respectively with secondary signal output pin IN2, receive the communication signal sent by indoor set home bus that two connections transmit, then export off-premises station micro computer to by the micro computer signal output pin dataout of this chip, complete the communication of indoor set to off-premises station; Then complete the communication of off-premises station to indoor set conversely.
The present embodiment can also complete the communication that an off-premises station connects multiple indoor set, and namely adopt outdoor owner to send out, dial-up used for indoor machine dials into different addresses, and off-premises station adopts the mode of poll and the indoor set communication of different address.
The present invention uses light current communication modes, installs, safe and reliable, and communication connects distance can reach more than 300 meters, and can connect multiple indoor set communication by an off-premises station.
Above embodiment is only for illustration of the present invention; and be not limitation of the present invention; the those of ordinary skill of relevant technical field; without departing from the spirit and scope of the present invention; can also make a variety of changes and modification; therefore all equivalent technical schemes also belong to category of the present invention, and scope of patent protection of the present invention should be defined by the claims.
Claims (4)
1. a communication circuit of air conditioner, is characterized in that, comprising:
Home bus, for transmitting the communication signal between indoor set communicating circuit and off-premises station communicating circuit;
Indoor set communicating circuit, comprises indoor set home bus transceiver, is sent to described home bus, receives outdoor communication signal that described home bus transmits and be transferred to indoor set micro computer for the indoor communication signal generated by indoor set micro computer;
Off-premises station communicating circuit, comprises off-premises station home bus transceiver, is sent to described home bus, receives indoor communication signal that described home bus transmits and be transferred to off-premises station micro computer for the outdoor communication signal generated by off-premises station micro computer;
Described indoor set home bus transceiver comprises:
Indoor set sending module, be connected with two signal outputs of described indoor set micro computer and two connections of described home bus respectively, for processing two indoor communication signals of two signal output inputs of described indoor set micro computer and export described two connections of described home bus after treatment respectively to respectively;
Indoor set receiver module, is connected with a signal input of described indoor set micro computer and two connections of described home bus respectively, and the outdoor communication signal on two connections receiving described home bus is also transferred to indoor set micro computer.
2. communication circuit of air conditioner as claimed in claim 1, it is characterized in that, described off-premises station home bus transceiver comprises:
Off-premises station sending module, be connected with two signal outputs of described off-premises station micro computer and two connections of described home bus respectively, for processing two outdoor communication signals of two signal output inputs of described off-premises station micro computer and export described two connections of described home bus after treatment respectively to respectively;
Off-premises station receiver module, is connected with a signal input of described off-premises station micro computer and two connections of described home bus respectively, and the indoor communication signal on two connections receiving described home bus is also transferred to off-premises station micro computer.
3. communication circuit of air conditioner as claimed in claim 1, it is characterized in that, described indoor set communicating circuit also comprises Signal analysis module, for identifying the communication signal of the outdoor input that two connections of described home bus transmit respectively.
4. communication circuit of air conditioner as claimed in claim 3, it is characterized in that, described Signal analysis module comprises two comparators, and the described in-phase input end of a comparator is connected with a connection of described home bus with the inverting input of another comparator; The described inverting input of a comparator is connected with another root connection of described home bus with the in-phase input end of another comparator; The output of described two comparators is connected with two other signal input of indoor set micro computer respectively.
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| CN201210189416.3A CN103471201B (en) | 2012-06-08 | 2012-06-08 | Communication circuit of air conditioner |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201210189416.3A CN103471201B (en) | 2012-06-08 | 2012-06-08 | Communication circuit of air conditioner |
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| CN103471201A CN103471201A (en) | 2013-12-25 |
| CN103471201B true CN103471201B (en) | 2016-01-20 |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN107143964B (en) * | 2016-03-01 | 2021-01-12 | 珠海格力电器股份有限公司 | Starting circuit for starting air conditioner and air conditioner |
| CN112013506B (en) * | 2019-05-31 | 2022-02-25 | 青岛海尔空调电子有限公司 | Communication detection method and device and air conditioner |
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| CN1184921A (en) * | 1996-10-18 | 1998-06-17 | 三洋电机株式会社 | Air conditioner |
| CN1641278A (en) * | 2004-01-13 | 2005-07-20 | 广东科龙电器股份有限公司 | Compatible dual compressor air conditioner controller |
| CN201133704Y (en) * | 2007-11-26 | 2008-10-15 | 海信（山东）空调有限公司 | Network air conditioner adapter |
| CN201181420Y (en) * | 2008-04-18 | 2009-01-14 | Tcl集团股份有限公司 | Air conditioner |
| CN101464032A (en) * | 2007-12-20 | 2009-06-24 | 珠海格力电器股份有限公司 | Sinusoidal direct-current variable-frequency air conditioner controller and control method thereof |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS61239742A (en) * | 1985-04-16 | 1986-10-25 | Matsushita Electric Ind Co Ltd | Home bus system |
| JP3302138B2 (en) * | 1993-11-19 | 2002-07-15 | 東芝キヤリア株式会社 | Air conditioner |
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2012
- 2012-06-08 CN CN201210189416.3A patent/CN103471201B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1184921A (en) * | 1996-10-18 | 1998-06-17 | 三洋电机株式会社 | Air conditioner |
| CN1641278A (en) * | 2004-01-13 | 2005-07-20 | 广东科龙电器股份有限公司 | Compatible dual compressor air conditioner controller |
| CN201133704Y (en) * | 2007-11-26 | 2008-10-15 | 海信（山东）空调有限公司 | Network air conditioner adapter |
| CN101464032A (en) * | 2007-12-20 | 2009-06-24 | 珠海格力电器股份有限公司 | Sinusoidal direct-current variable-frequency air conditioner controller and control method thereof |
| CN201181420Y (en) * | 2008-04-18 | 2009-01-14 | Tcl集团股份有限公司 | Air conditioner |
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