CN105448074B - Idle call one way communications devices and its communication means - Google Patents
Idle call one way communications devices and its communication means Download PDFInfo
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- CN105448074B CN105448074B CN201410400465.6A CN201410400465A CN105448074B CN 105448074 B CN105448074 B CN 105448074B CN 201410400465 A CN201410400465 A CN 201410400465A CN 105448074 B CN105448074 B CN 105448074B
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Abstract
The invention discloses a kind of idle call one way communications devices and its communication means, the device includes power supply, interior machine, outer machine, interior machine control unit, outer machine control unit, the interior machine control unit is for controlling the interior machine, the outer machine control unit is for controlling the outer machine, power supply line is connected between the interior machine and the outer machine and forms communication loop, the interior machine further includes signal of communication modulation unit, the signal of communication modulation unit is used to the supply voltage that the interior machine control unit is exported being converted into 40 ± 10V DC voltage, the outer machine further includes signal demodulation unit, the signal demodulation unit is used to 40 ± 10V DC voltage of the interior machine output being converted into supply voltage.In one way communications devices and its communication means of the present invention, signal of communication is the direct current signal of 40 ± 10V, the interference-free influence of communication quality, and long transmission distance.
Description
Technical field
The present invention relates to air conditioner controlling technology fields, more particularly to a kind of idle call one way communications devices and its communication party
Method.
Background technique
The communication mode that domestic air conditioning generally uses at present has: 485 communications, AC current ring communication, unidirectional 220V alternating current
Communication.485 communications are communicated by using differential signal, and advantage is that signal of communication is stablized, and transmission range is long, can carry out group
Net, the disadvantage is that circuit is complicated, higher cost.AC current ring communication generally uses the electric current of 0~10mA to be communicated, and advantage is electricity
Road is at low cost, but when communication line is too long or is in electromagnetic environment more rugged environment, signal, which is susceptible to interference, to be caused
It communicates bad.Unidirectional 220V exchange telecommunication exchanges telecommunication using 220V, and communication distance is remote, and signal of communication is good, but cannot
Networking, can only indoor unit toward outdoor unit send communication data, and high pressure 220V also has security risk.
In view of problem above existing in the prior art, it is necessary to design a kind of idle call one way communications devices and its communication
Method, circuit is simple, signal of communication is not easily susceptible to interfere.
Summary of the invention
In view of this, the purpose of the present invention is to provide a kind of idle call one way communications devices and its communication means, electricity
Road is simple, signal of communication is not easily susceptible to interfere.
To achieve the goals above, technical solution provided in an embodiment of the present invention is as follows:
A kind of idle call one way communications devices, including power supply, interior machine, outer machine, interior machine control unit, outer machine control unit,
The interior machine control unit for controlling the interior machine, the outer machine control unit for controlling the outer machine, the interior machine with
Power supply line is connected between the outer machine and forms communication loop, the one way communications devices further include:
Signal of communication modulation unit, the signal of communication modulation unit are set between the interior machine, interior machine control unit,
The interior machine control unit and power supply have the first communication letter of pulse width to signal of communication modulation unit output respectively
Number and DC level, the signal of communication modulation unit is by first signal of communication with pulse width, DC level coupling
Second signal of communication with pulse width is formed after conjunction, and by second communication signal transmissions with pulse width to institute
Interior machine is stated, the one way communications devices determine that the pulse of the second signal of communication is wide according to the length of time of high level in DC level
Degree, each pulse width correspond to different operating modes；
Signal demodulation unit, the signal demodulation unit are set between the outer machine and outer machine control unit, signal solution
Unit is adjusted to be used to the second signal of communication with pulse width of the interior machine output being converted into the third with pulse width
Signal of communication, and then externally machine is controlled.
As a further improvement of the present invention, the signal of communication modulation unit is relay, and the relay is defeated
Outlet is connected with the power supply, and the input terminal of the relay is connected with the interior machine control unit, the relay it is another
One output end is connect with the connecting terminal block of the interior machine.
As a further improvement of the present invention, the signal demodulation unit is three terminal regulator, and the three terminal regulator is set
It is placed between the outer machine and the outer machine control unit, the connecting terminal of the input terminal of the three terminal regulator and the outer machine
Row's connection, the output end of the three terminal regulator are connect with the outer machine control unit.
As a further improvement of the present invention, noise suction is provided between the signal of communication modulation unit and the interior machine
Receive circuit.
Correspondingly, a kind of communication means of idle call one way communications devices, comprising:
S1, interior machine control unit and power supply have the first communication of pulse width to the output of signal of communication modulation unit respectively
Signal and DC level；
S2, the operating mode that air-conditioning is determined according to the length of time of high level in DC level；
S3, signal of communication modulation unit are formed after coupling the first signal of communication with pulse width, DC level to be had
There is the second signal of communication of pulse width, the pulse width of second signal of communication is determined according to operating mode；
The second signal of communication with pulse width that S4, signal demodulation unit export interior machine is converted into wide with pulse
The third communication signal of degree, and then externally machine is controlled.
As a further improvement of the present invention, the DC level that the DC level of the power supply output is 30-50V.
As a further improvement of the present invention, first signal of communication and third communication signal are that 5V or 3.3V has arteries and veins
The direct current signal of width is rushed, the second signal of communication is the direct current signal that 30-50V has pulse width.
The invention has the following advantages:
Disclosed idle call one way communications devices and communication means, by interior machine control unit and interior machine it
Between be arranged signal of communication modulation unit, it is straight that supply voltage is converted into the 40 ± 10V that can be transmitted in long cable
Galvanic electricity pressure, and by the setting signal demodulating unit between outer machine and outer machine control unit, 40 ± 10V DC voltage is reduced to
Voltage is controlled, to be transmitted to the control chip of air-conditioning.Signal of communication is the direct current signal of 40 ± 10V, and communication quality is not by dry
The influence disturbed, and long transmission distance.
Detailed description of the invention
In order to more clearly explain the embodiment of the invention or the technical proposal in the existing technology, to embodiment or will show below
There is attached drawing needed in technical description to be briefly described, it should be apparent that, the accompanying drawings in the following description is only this
The some embodiments recorded in invention, for those of ordinary skill in the art, without creative efforts,
It is also possible to obtain other drawings based on these drawings.
Fig. 1 is the wiring schematic diagram of signal of communication modulation unit in a preferred embodiment of the invention；
Fig. 2 is the wiring schematic diagram of signal demodulation unit in a preferred embodiment of the invention.
Specific embodiment
That there are signals of communication is unstable for the various communication modes that existing air-conditioning is generallyd use, transmission range is short, circuit
The problems such as complicated.
In view of the above-mentioned problems in the prior art, present invention discloses a kind of idle call one way communications devices, including
Power supply, interior machine, outer machine, interior machine control unit, outer machine control unit, the interior machine control unit is for controlling the interior machine, institute
Outer machine control unit is stated for controlling the outer machine, power supply line is connected between the interior machine and the outer machine and is formed and communicate back
Road, the one way communications devices further include:
Signal of communication modulation unit, the signal of communication modulation unit are set between the interior machine, interior machine control unit,
The interior machine control unit and power supply have the first communication letter of pulse width to signal of communication modulation unit output respectively
Number and DC level, the signal of communication modulation unit is by first signal of communication with pulse width, DC level coupling
Second signal of communication with pulse width is formed after conjunction, and by second communication signal transmissions with pulse width to institute
Interior machine is stated, the one way communications devices determine that the pulse of the second signal of communication is wide according to the length of time of high level in DC level
Degree, each pulse width correspond to different operating modes；
Signal demodulation unit, the signal demodulation unit are set between the outer machine and outer machine control unit, signal solution
Unit is adjusted to be used to the second signal of communication with pulse width of the interior machine output being converted into the third with pulse width
Signal of communication, and then externally machine is controlled.
Preferably, the signal of communication modulation unit is relay, and the output end of the relay and the power supply phase
Even, the input terminal of the relay is connected with the interior machine control unit, another output end of the relay with it is described interior
The connecting terminal block of machine connects.
Preferably, the signal demodulation unit is three terminal regulator, and the three terminal regulator is set to the outer machine and institute
It states between outer machine control unit, the input terminal of the three terminal regulator is connect with the connecting terminal block of the outer machine, three end
The output end of voltage-stablizer is connect with the outer machine control unit.
Preferably, noise absorbing circuit is provided between the signal of communication modulation unit and the interior machine.
Present invention further teaches a kind of communication means of idle call one way communications devices, the communication means includes:
S1, interior machine control unit and power supply have the first communication of pulse width to the output of signal of communication modulation unit respectively
Signal and DC level；
S2, the operating mode that air-conditioning is determined according to the length of time of high level in DC level；
S3, signal of communication modulation unit are formed after coupling the first signal of communication with pulse width, DC level to be had
There is the second signal of communication of pulse width, the pulse width of second signal of communication is determined according to operating mode；
The second signal of communication with pulse width that S4, signal demodulation unit export interior machine is converted into wide with pulse
The third communication signal of degree, and then externally machine is controlled.
Preferably, the DC level that the DC level of the power supply output is 30-50V.
Preferably, first signal of communication and third communication signal are that there is 5V or 3.3V the direct current of pulse width to believe
Number, the second signal of communication is the direct current signal that 30-50V has pulse width.
Disclosed idle call one way communications devices, signal of communication are the direct current signal of 30-50V, communication quality
Interference-free influence, and long transmission distance.
Technical solution in order to enable those skilled in the art to better understand the present invention, below in conjunction with of the invention real
The attached drawing in example is applied, technical scheme in the embodiment of the invention is clearly and completely described, it is clear that described implementation
Example is only a part of the embodiment of the present invention, instead of all the embodiments.Based on the embodiments of the present invention, this field is common
Technical staff's every other embodiment obtained without making creative work, all should belong to protection of the present invention
Range.
As shown in Figure 1 and Figure 2, present invention discloses a kind of idle call one way communications devices, including power supply 001, interior machine 002,
Outer machine 004, interior machine control unit 003, outer machine control unit 005, interior machine control unit 003 is for controlling interior machine 002, outer machine control
Unit 005 processed is connected with power supply line between interior machine 002 and outer machine 004 and forms communication loop, at this for controlling outer machine 004
In invention, one way communications devices further include:
Signal of communication modulation unit 006, signal of communication modulation unit 006 are set to interior machine 002, interior machine control unit 003
Between, interior machine control unit 003 and power supply 001 have the first of pulse width to the output of signal of communication modulation unit 006 respectively
Signal of communication and DC level, signal of communication modulation unit 006 is by the first signal of communication, DC level coupling with pulse width
Second signal of communication with pulse width is formed after conjunction, and by the second communication signal transmissions with pulse width to interior machine
002, one way communications devices determine the pulse width of the second signal of communication according to the length of time of high level in DC level, each
Pulse width corresponds to different operating modes；
Signal demodulation unit 007, signal demodulation unit 007 are set between outer machine 004 and outer machine control unit 005, letter
The second signal of communication with pulse width that number demodulating unit 007 is used to export in interior machine 002 is converted into pulse width
Third communication signal, and then externally machine 004 controlled.
Specifically, signal of communication modulation unit 006 is relay, and signal demodulation unit 007 is three terminal regulator.Power supply
001 is connected with the output end of relay, and interior machine control unit 003 is connected with the input terminal of relay.
In other embodiments, it is provided with noise absorbing circuit between signal of communication modulation unit 006 and interior machine 002,
To avoid the DC level exported from signal of communication modulation unit 006 during transmission by abnormal interference, to avoid
The control chip of air-conditioning is damaged.
Communication voltage is selected as 40V in above-described embodiment, and certain communication voltage can be changed, to voltage model
It encloses without very compulsory regulation, the general higher communication efficiency of voltage is better, it is contemplated that overtension may produce safety
Problem, generally can be relatively good in 40 ± 10V, and communication distance can achieve 10M or so.
The communication means of idle call one way communications devices specifically includes in the present invention:
S1, interior machine control unit and power supply have the first communication of pulse width to the output of signal of communication modulation unit respectively
Signal and DC level；
S2, the operating mode that air-conditioning is determined according to the length of time of high level in DC level；
S3, signal of communication modulation unit are formed after coupling the first signal of communication with pulse width, DC level to be had
There is the second signal of communication of pulse width, the pulse width of second signal of communication is determined according to operating mode；
The second signal of communication with pulse width that S4, signal demodulation unit export interior machine is converted into wide with pulse
The third communication signal of degree, and then externally machine is controlled.
Such as in a preferred embodiment of the invention, the course of work is as follows: opening power supply 001, interior machine control unit 003
The first signal of communication with pulse width of 5V or 3.3V, each pulse width pair are exported to signal of communication modulation unit 006
Different operating modes is answered, operating mode includes refrigeration mode, heating mode and/or ventilation mode etc., according to different work
First signal of communication of the different pulse widths of schema creation.At the same time, power supply 001 is defeated to signal of communication modulation unit 006
The DC level of 40V out, the first signal of communication and DC level are defeated after being modulated by signal of communication modulation unit 006 as a result,
The second signal of communication with pulse width of 40V out, the second signal of communication (DC voltage) of 40V institute compared to the prior art
The 220V ac high-voltage of use is used as exchange telecommunication, safer, and the DC voltage of 40V can be in long cable
Middle transmission；After 40V DC voltage passes through signal demodulation unit 007, the third with pulse width for being reduced to 5V or 3.3V is logical
Believe signal, and then externally machine is controlled.One way communications devices are according to the length of time of high level in DC level in the present invention
Determine that the pulse width of the second signal of communication, each pulse width correspond to different operating modes, operating mode includes refrigeration mould
Formula, heating mode and/or ventilation mode etc..
Wherein the first signal of communication, the second signal of communication and third communication signal pulse width having the same, second is logical
The pulse width of letter signal and third communication signal is determined by the first signal of communication.
Each pulse width illustrated below corresponds to the working principle of different operating modes.For example, working as signal of communication
When pulse width is 100ms, air-conditioning is in refrigeration, low wind mode；When signal of communication pulse width is 150ms, air-conditioning is in
Refrigeration, apoplexy mode；When signal of communication pulse width is 200ms, air-conditioning is in refrigeration, high wind mode；When signal of communication arteries and veins
Rush width be 250ms when, air-conditioning be in heating, low wind mode；When signal of communication pulse width is 300ms, air-conditioning is in system
Heat, apoplexy mode；When signal of communication pulse width is 350ms, air-conditioning is in heating, high wind mode；When signal of communication pulse
When width is 400ms, air-conditioning is in ventilation mode.
As can be seen from the above technical solutions, the present invention is by being arranged signal of communication between interior machine control unit and interior machine
Supply voltage (usually 5V or 3.3V) is converted into the 40V direct current that can be transmitted in long cable by modulation unit
Voltage, and by the way that the signal demodulation unit is arranged between outer machine and outer machine control unit, 40V DC voltage is reduced to electricity
Source voltage, to be transmitted to the control chip of air-conditioning.
Signal of communication is the direct current of 40 ± 10V in disclosed idle call one way communications devices and its communication means
Signal, the interference-free influence of communication quality, long transmission distance, and circuit of the present invention be simple, reliable operation, can be good at reality
The communication function of existing convertible frequency air-conditioner.
It is obvious to a person skilled in the art that invention is not limited to the details of the above exemplary embodiments, Er Qie
In the case where without departing substantially from spirit or essential attributes of the invention, the present invention can be realized in other specific forms.Therefore, no matter
From the point of view of which point, the present embodiments are to be considered as illustrative and not restrictive, and the scope of the present invention is by appended power
Benefit requires rather than above description limits, it is intended that all by what is fallen within the meaning and scope of the equivalent elements of the claims
Variation is included within the present invention.Any reference signs in the claims should not be construed as limiting the involved claims.
In addition, it should be understood that although this specification is described in terms of embodiments, but not each embodiment is only wrapped
Containing an independent technical solution, this description of the specification is merely for the sake of clarity, and those skilled in the art should
It considers the specification as a whole, the technical solutions in the various embodiments may also be suitably combined, forms those skilled in the art
The other embodiments being understood that.
Claims (5)
1. a kind of idle call one way communications devices, including power supply, interior machine, outer machine, interior machine control unit, outer machine control unit, institute
Interior machine control unit is stated for controlling the interior machine, the outer machine control unit is for controlling the outer machine, the interior machine and institute
It states and is connected with power supply line between outer machine and forms communication loop, which is characterized in that the one way communications devices further include:
Signal of communication modulation unit, the signal of communication modulation unit is set between the interior machine, interior machine control unit, described
Interior machine control unit and power supply respectively to signal of communication modulation unit output have pulse width the first signal of communication and
DC level, after the signal of communication modulation unit couples first signal of communication with pulse width, DC level
Second signal of communication with pulse width is formed, and by second communication signal transmissions with pulse width to described interior
Machine, the one way communications devices determine the pulse width of the second signal of communication according to the length of time of high level in DC level,
Each pulse width corresponds to different operating modes；
Signal demodulation unit, the signal demodulation unit are set between the outer machine and outer machine control unit, and signal demodulation is single
Member is for being converted into the third communication with pulse width for the second signal of communication with pulse width of the interior machine output
Signal, and then externally machine is controlled；
Wherein, the DC level that the DC level of the power supply output is 30-50V, first signal of communication and the third communication
Signal is the direct current signal that 5V or 3.3V has pulse width, and the second signal of communication is that there is 30-50V the direct current of pulse width to believe
Number.
2. one way communications devices according to claim 1, which is characterized in that the signal of communication modulation unit is relay
Device, and the output end of the relay is connected with the power supply, the input terminal of the relay and the interior machine control unit phase
Connection, another output end of the relay are connect with the connecting terminal block of the interior machine.
3. one way communications devices according to claim 1, which is characterized in that the signal demodulation unit is three-terminal voltage-stabilizing
Device, the three terminal regulator are set between the outer machine and the outer machine control unit, the input terminal of the three terminal regulator
It is connect with the connecting terminal block of the outer machine, the output end of the three terminal regulator is connect with the outer machine control unit.
4. one way communications devices according to claim 1, which is characterized in that the signal of communication modulation unit with it is described interior
Noise absorbing circuit is provided between machine.
5. a kind of communication means of idle call one way communications devices as described in claim 1, which is characterized in that the communication party
Method includes:
S1, interior machine control unit and power supply have the first signal of communication of pulse width to the output of signal of communication modulation unit respectively
And DC level；
S2, the operating mode that air-conditioning is determined according to the length of time of high level in DC level；
S3, signal of communication modulation unit are formed after coupling the first signal of communication with pulse width, DC level with arteries and veins
The second signal of communication of width is rushed, the pulse width of second signal of communication is determined according to operating mode；
The second signal of communication with pulse width that S4, signal demodulation unit export interior machine is converted into having pulse width
Third communication signal, and then externally machine is controlled.
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| CN201410400465.6A CN105448074B (en) | 2014-08-14 | 2014-08-14 | Idle call one way communications devices and its communication means |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201410400465.6A CN105448074B (en) | 2014-08-14 | 2014-08-14 | Idle call one way communications devices and its communication means |
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| CN105448074B true CN105448074B (en) | 2019-02-26 |
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| JPH0787067A (en) * | 1993-09-17 | 1995-03-31 | Hitachi Ltd | Two-way signal transmission system |
| CN1101116A (en) * | 1993-05-27 | 1995-04-05 | 株式会社日立制作所 | Air conditioner |
| JP2000097484A (en) * | 1998-09-22 | 2000-04-04 | Hitachi Ltd | Air conditioner |
| CN2518016Y (en) * | 2001-12-31 | 2002-10-23 | 海信集团有限公司 | Corrent loop communicating circuit of frequency converting air conditioner |
| CN1573249A (en) * | 2003-05-23 | 2005-02-02 | 日立家用电器公司 | Communication control device of air conditioner |
| CN201368561Y (en) * | 2009-01-06 | 2009-12-23 | 苏州三星电子有限公司 | Automatic regulation device for inverter air conditioner bus |
| CN202955827U (en) * | 2012-11-07 | 2013-05-29 | 中山市爱的圣科技有限公司 | Three-line communication structure of indoor unit and outdoor unit of variable frequency air conditioner |
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Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1101116A (en) * | 1993-05-27 | 1995-04-05 | 株式会社日立制作所 | Air conditioner |
| JPH0787067A (en) * | 1993-09-17 | 1995-03-31 | Hitachi Ltd | Two-way signal transmission system |
| JP2000097484A (en) * | 1998-09-22 | 2000-04-04 | Hitachi Ltd | Air conditioner |
| CN2518016Y (en) * | 2001-12-31 | 2002-10-23 | 海信集团有限公司 | Corrent loop communicating circuit of frequency converting air conditioner |
| CN1573249A (en) * | 2003-05-23 | 2005-02-02 | 日立家用电器公司 | Communication control device of air conditioner |
| CN201368561Y (en) * | 2009-01-06 | 2009-12-23 | 苏州三星电子有限公司 | Automatic regulation device for inverter air conditioner bus |
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|---|---|
| CN105448074A (en) | 2016-03-30 |
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