CN104296330A - Air conditioning outdoor unit, method for adjusting communication line impedance and air conditioning unit system - Google Patents
Air conditioning outdoor unit, method for adjusting communication line impedance and air conditioning unit system Download PDFInfo
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- CN104296330A CN104296330A CN201310309508.5A CN201310309508A CN104296330A CN 104296330 A CN104296330 A CN 104296330A CN 201310309508 A CN201310309508 A CN 201310309508A CN 104296330 A CN104296330 A CN 104296330A
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F11/00—Control or safety arrangements
- F24F11/30—Control or safety arrangements for purposes related to the operation of the system, e.g. for safety or monitoring
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Abstract
The invention provides an air conditioning outdoor unit, a method for adjusting communication line impedance and an air conditioning unit system. The air conditioning outdoor unit comprises an air conditioning host, a communication quality determining device and a signal adjusting device; the communication quality judging device is connected with the air conditioning host and is connected to a communication line of an air conditioning unit; the communication quality judging device determines the communication level of the communication line of the air conditioning unit and displays the judgment result; the signal adjusting device is connected with the air conditioning host and is connected to the communication line of the air conditioning unit; the signal adjusting device adjusts impedance of the communication line of the air conditioning unit. According to the system and method for automatically adjusting the impedance of the air conditioning unit, the dynamic adjustment of a communication signal can be achieved, and the communication error rate of the air conditioning unit meets the design requirement, and therefore the air conditioning unit works under the stable state; the rejection ratio is reduced, and the user comfort is improved.
Description
Technical field
The present invention relates to air-conditioning technical field, particularly relate to a kind of air-conditioner outdoor unit, the method regulating communication line impedance and air-conditioner set system.
Background technology
In general, air-conditioner is a kind of household electrical appliance being used for regulating indoor temperature and/or purify the air of a room.The building with multiple separate interior space generally uses one-driven-several type air-conditioner set, and this air-conditioner set generally comprises and is multiplely separately positioned on indoor set in the separate respective interior space and an off-premises station be connected with each indoor set.
A current air-conditioner outdoor unit combination number is increasing, and the number of units being attached thereto the indoor set connect is just more and more, makes the length of communication data line in continuous increase.In order to make air-conditioner set be operated in optimum state, requiring to improve the promptness of data transmission between air conditioning chamber's internal-external machine, therefore constantly promoting the major tasks that communication baud rate is current each manufacturer.The lifting of communication baud rate, the increase of data wire length, all can cause signal reflex level to occur change.
The way of other producers is on off-premises station computer board, install the resistance of a fixed resistance value at present, and other indoor sets also all install the resistance of a fixed resistance value.But, the length of communication distance, the size of baud rate, in-site installation environment all can have influence on the quality level of air conditioning chamber's internal-external machine communication, but the scheme of signal reflex is suppressed by this specific resistance, all factors cannot be considered, impedance cannot be regulated according to actual conditions, therefore, be fixed the communication level that resistance can only improve air-conditioner set, can not according to actual conditions by the communication horizontal adjustment of air-conditioner set to best.
Summary of the invention
The invention provides a kind of air-conditioner outdoor unit, the method regulating communication line impedance and air-conditioner set system, current large-size air conditioning unit cable run distance is long, installation environment is complicated, interference is many, the dynamic conditioning of communication signal can be realized by the present invention, the communication bit error rate of air-conditioner set is met design requirement, thus guarantees that air-conditioner set is operated in stable state, reduce fraction defective, improve the comfortableness of user.Described technical scheme is as follows:
An off-premises station device for communication line impedance adjustable, comprising:
Air-conditioner host, communication quality decision maker, sig-nal-conditioning unit;
Described communication quality decision maker is connected with described air-conditioner host, and is connected in the communication line of air-conditioner set, and described communication quality decision maker judges the communication level of air-conditioner set communication line, and shows result of determination;
Described sig-nal-conditioning unit is connected with described air-conditioner host, and is connected in the communication line of air-conditioner set, and the impedance of described sig-nal-conditioning unit to the communication line of air-conditioner set regulates.
Further, described air-conditioner host comprises air-conditioning communication receiving/transmission device, and described air-conditioning communication receiving/transmission device comprises two PORT COMs, and described air-conditioning communication receiving/transmission device is transmitted by described PORT COM after being changed by communication signal.
Further, described sig-nal-conditioning unit is regulated by the impedance of potentiometer to the communication line of air-conditioner set.
Further, described sig-nal-conditioning unit comprises the first resistance, the second resistance, potentiometer and electric capacity;
One end of described first resistance is connected with one end of described second resistance, and the other end of described first resistance is connected with two PORT COMs of described air-conditioner host respectively with the other end of described second resistance;
The sliding end of described potentiometer is connected with a stiff end, and is connected with the tie point of described first resistance with described second resistance, and another stiff end of described potentiometer is connected with one end of described electric capacity, the other end ground connection of described electric capacity.
Further, described communication quality decision maker judges the communication level of air-conditioner set communication line according to the communication signal transmitted in described communication line.
Further, described communication quality decision maker comprises detection module and judge module, and described detection module is connected with judge module;
Whether described detection module is correct for detecting each communication in communication line, and calculates the accuracy from start to Current communications;
Described judge module for judging whether the accuracy of Current communications reaches threshold value, and judges communication level according to judged result.
Further, described detection module specifically for by reference signal compared with the communication signal in the described communication line received, judge that whether communication correct according to the result that compares.
An air-conditioner set system for communication line impedance adjustable, comprising:
Off-premises station, indoor units, connection;
The quantity of the indoor set comprised in described indoor units is more than or equal to 2;
The all indoor sets comprised in described indoor units are in parallel by connection, and are connected with described off-premises station by connection, and duty is passed to off-premises station by described all indoor sets;
Wherein, described off-premises station comprises: air-conditioner host, communication quality decision maker, sig-nal-conditioning unit;
Described communication quality decision maker is connected with described air-conditioner host, and is connected in the communication line of air-conditioner set, and described communication quality decision maker judges the communication level of air-conditioner set communication line, and shows result of determination;
Described sig-nal-conditioning unit is connected with described air-conditioner host, and is connected in the communication line of air-conditioner set, and the impedance of described sig-nal-conditioning unit to the communication line of air-conditioner set regulates.
A method for adjusting air conditioning group communication line impedance, comprising:
Transmit the duty of all indoor sets;
According to the duty of described all indoor sets, judge that whether the communication level of air-conditioner set is as good, and show judged result;
If not, the impedance of the communication line of air-conditioner set is regulated, and whether the communication level continuing to judge air-conditioner set is good step;
If so, adjustment is terminated.
Further, judge whether the communication level of air-conditioner set communication line comprises as good:
Judge that in communication line, whether each communication is correct;
Calculate the accuracy from start to Current communications;
Judge whether the accuracy of Current communications reaches threshold value;
If so, judge that communication level is as good;
If not, judge that communication level is not as good.
Further, describedly judge in communication line, whether each communication correctly comprises:
By reference signal compared with the communication signal in the described communication line received;
If described reference signal is identical with the communication signal in the described communication line received, judge that communication is correct;
If described reference signal is not identical with the communication signal in the described communication line received, judge that communication is wrong.
Further, when the communication level of air-conditioner set is not good, regulate by regulating the impedance of potentiometer to the communication line of air-conditioner set in communication line.
The air-conditioner outdoor unit that the embodiment of the present invention provides, the method regulating communication line impedance and air-conditioner set system, the dynamic conditioning of communication signal can be realized, the communication bit error rate of air-conditioner set is met design requirement, thus guarantee that air-conditioner set is operated in stable state, reduce fraction defective, improve the comfortableness of user.
Accompanying drawing explanation
Fig. 1 is the functional block diagram of the air-conditioner outdoor unit device of a kind of communication line impedance adjustable that the embodiment of the present invention provides;
Fig. 2 is the circuit diagram of the air-conditioning communication receiving/transmission device that the embodiment of the present invention provides;
Fig. 3 is the circuit diagram of the sig-nal-conditioning unit that the embodiment of the present invention provides;
Fig. 4 is the functional block diagram of the air-conditioner set system of a kind of communication line impedance adjustable that the embodiment of the present invention provides;
Fig. 5 is the method flow diagram of a kind of adjusting air conditioning group communication line impedance that the embodiment of the present invention provides.
Detailed description of the invention
Below in conjunction with drawings and Examples, the present invention is described in further detail.Be understandable that, specific embodiment described herein, only for explaining the present invention, but not limitation of the invention.
Air-conditioning is used to the household electrical appliance regulating indoor temperature and/or purify the air of a room.If the building with multiple separate interior space generally uses one-driven-several type air-conditioner set, this air-conditioner set generally comprises and is multiplely separately positioned on indoor set in the separate respective interior space and an off-premises station be connected with each indoor set.Multiple indoor set will carry out communication with off-premises station, and duty is passed to off-premises station by indoor set, and off-premises station controls system according to the duty of indoor set.Increasing of indoor set number of units, the increase of communication data line length, the lifting of communication baud rate, communication signal can be caused unstable, and the bit error rate raises, and unit cannot be operated in the problem of optimum state.
Fig. 1 is the system function module block diagram of the air-conditioner outdoor unit device of a kind of communication line impedance adjustable that the embodiment of the present invention provides.As shown in Figure 1, described system comprises: air-conditioner host 101, communication quality decision maker 102, sig-nal-conditioning unit 103; Communication quality decision maker 102 is connected with air-conditioner host 101, and is connected in the communication line of air-conditioner set, and communication quality decision maker 102 judges the communication level of air-conditioner set communication line, and shows result of determination; Sig-nal-conditioning unit 103 is connected with air-conditioner host 101, and is connected in the communication line of air-conditioner set, and the impedance of the communication line of sig-nal-conditioning unit 103 pairs of air-conditioner set regulates.
Wherein, air-conditioner host 101 comprises air-conditioning communication receiving/transmission device, and air-conditioning communication receiving/transmission device comprises two PORT COMs, and air-conditioning communication receiving/transmission device is transmitted by PORT COM after being changed by communication signal.Fig. 2 is the circuit diagram of the air-conditioning communication receiving/transmission device that the embodiment of the present invention provides, as shown in Figure 2, air-conditioning communication receiving/transmission device carries out information interaction by the operational module of port ina, port inb and port out and air-conditioner host inside, two ports of interface CN15 are connected with two ports of communication quality decision maker 102, also be connected with two ports of sig-nal-conditioning unit 103, two ports of interface CN15 are also PORT COMs main in air-conditioner set system simultaneously.The chip of air-conditioning communication receiving/transmission device is used for communication signal to change.
Sig-nal-conditioning unit 103 is regulated by the impedance of potentiometer to the communication line of air-conditioner set.Fig. 3 is the circuit diagram of the sig-nal-conditioning unit that the embodiment of the present invention provides, as shown in Figure 3, sig-nal-conditioning unit 103 comprises the first resistance R1, the second resistance R2, potentiometer RW and electric capacity C, one end of first resistance R1 is connected with one end of the second resistance R2, and the other end of the first resistance R1 is connected with the PORT COM CN15 of air-conditioning communication receiving/transmission device respectively with the other end of the second resistance R2.A stiff end of potentiometer RW is connected with the tie point of the second resistance R2 with the first resistance R1, and another stiff end of potentiometer RW is connected with one end of electric capacity C, the other end ground connection of electric capacity C.Like this, according to the result that communication quality decision maker 102 judges, sig-nal-conditioning unit 103 is regulated the impedance of the communication line of air-conditioner set by regulator potentiometer RW.
Communication quality decision maker 102 judges the communication level of air-conditioner set communication line according to the communication signal transmitted in communication line.Communication quality decision maker 102 comprises detection module and judge module, and detection module is connected with judge module.Whether detection module is correct for detecting each communication in communication line, specifically, to detect in communication line each communication be correctly whether by by reference signal with the communication signal in the communication line received compared with, whether correct according to the result judgement communication of comparing.Then calculate the accuracy from start to Current communications, judge module for judging whether the accuracy of Current communications reaches threshold value, and judges communication level according to judged result.Embodiments of the invention preferably choose the accuracy of 95% as threshold value.When the communication level of air-conditioner set is not good, display does not have show or display NO or all can represent the not good mark of the communication level of air-conditioner set, at this moment regulator potentiometer RW, makes the impedance of the communication line of air-conditioner set energy and actual conditions match.Until when the communication level of air-conditioner set is good, display shows OK or communication level that all can represent air-conditioner set is good mark, at this moment stop regulator potentiometer RW.
Fig. 4 is the functional block diagram of the air-conditioner set system of a kind of communication line impedance adjustable that the embodiment of the present invention provides, as shown in Figure 4, described system comprises: the off-premises station 401 related in Fig. 1, indoor units 402, connection 403, wherein, off-premises station comprises: air-conditioner host, communication quality decision maker, sig-nal-conditioning unit; Communication quality decision maker is connected with air-conditioner host, and is connected in the communication line of air-conditioner set, and communication quality decision maker judges the communication level of air-conditioner set communication line, and shows result of determination; Sig-nal-conditioning unit is connected with air-conditioner host, and is connected in the communication line of air-conditioner set, and the impedance of sig-nal-conditioning unit to the communication line of air-conditioner set regulates.The quantity of the indoor set comprised in indoor units 402 is more than or equal to 2.The every platform indoor set comprised in indoor units also comprises an air-conditioning communication receiving/transmission device, and it is identical with the air-conditioning communication receiving/transmission device of off-premises station, indoor set is by two PORT COMs of air-conditioning communication receiving/transmission device, connection 403 is utilized to be in parallel, and be connected with off-premises station by connection, all indoor sets can represent that the signal transmission of indoor set duty is to air-conditioning communication receiving/transmission device, to represent that the signal of indoor set duty is changed by air-conditioning communication receiving/transmission device, and be passed through off-premises station; The communication quality decision maker of off-premises station, according to the duty of indoor set, judges whether the communication level of air-conditioner set is good, and shows judged result; The impedance of result to the communication line of air-conditioner set that the sig-nal-conditioning unit of off-premises station judges according to communication quality decision maker regulates.When the communication level of air-conditioner set does not reach optimum for time not good, display does not have show or display NO time or all can represent the not good mark of the communication level of air-conditioner set, at this moment regulate the potentiometer of the sig-nal-conditioning unit of off-premises station, the impedance of the communication line of air-conditioner set energy and actual conditions are matched.Until the communication level of air-conditioner set reaches optimum for time good, when display to show OK or communication level that all can represent air-conditioner set be good mark, at this moment stop the potentiometer of the sig-nal-conditioning unit regulating off-premises station.
Because indoor set is identical with the air-conditioning communication receiving/transmission device of off-premises station, so see Fig. 2, the circuit diagram of the air-conditioning communication receiving/transmission device that the embodiment of the present invention provides, the interface CN15 of the air-conditioning communication receiving/transmission device of all indoor sets or off-premises station has two PORT COMs, these two ports are respectively 1 and 2 port, indoor set 1 port all with off-premises station is connected, indoor set 2 ports all with off-premises station are connected, the connection be connected with these two ports is home bus bus, whole air-conditioner set system carries out the communication of information by home bus bus.
For whole air-conditioner set system, the air-conditioning communication receiving/transmission device of indoor set is by after representing that the signal of indoor set duty is changed, off-premises station is passed to by connection, the air-conditioning communication receiving/transmission device of off-premises station will represent that the signal of indoor set duty carries out changing and passes to the operational module of air-conditioner host inside, duty according to indoor set is sent control signal by off-premises station, control signal passes to the air-conditioning communication receiving/transmission device of indoor set by connection, control signal is changed by the air-conditioning communication receiving/transmission device of indoor set, and control accordingly.
Fig. 5 is the method flow diagram of a kind of adjusting air conditioning group communication line impedance that the embodiment of the present invention provides, and as shown in Figure 5, described method comprises:
Step 201: the duty transmitting all indoor sets.
First, duty is passed to off-premises station by communication line by all indoor sets in air-conditioner set, is controlled by the duty of off-premises station according to indoor set.
Step 202: according to the duty of all indoor sets, judges that whether the communication level of air-conditioner set is as good, and shows judged result.
On the connection of air-conditioner set, the device judged communication quality is installed, this device judged communication quality is according to the duty of indoor set, whether the communication level judging air-conditioner set is good, if the communication level of air-conditioner set has been good, the present embodiment preferably shows OK over the display or communication level that all can represent air-conditioner set is good mark, if the communication level of air-conditioner set is not good, display does not just show or shows NO or all can represent the not good mark of the communication level of air-conditioner set.
Wherein, judge whether the communication level of air-conditioner set communication line specifically comprises step 2021 ~ step 2025 as good:
Step 2021: judge that in communication line, whether each communication is correct.
The reference signal of communication signal in the communication line received with the expression correct signal in the device judged communication quality is compared, if reference signal is identical with the communication signal in the communication line received, judges that communication is correct; If reference signal is not identical with the communication signal in the communication line received, judge that communication is wrong.
Step 2022: calculate the accuracy from start to Current communications.
Do a statistics by from start to current judged result, total with the correct number of times of communication divided by communication number of times be multiplied by 100% again, be exactly the accuracy from Current communications of starting shooting.
Step 2023: judge whether the accuracy of Current communications reaches threshold value.
Embodiments of the invention preferably choose the accuracy of 95% as threshold value.When being greater than 95% from start to the accuracy of Current communications, illustrating that communication level is good, when being less than 95% from start to the accuracy of Current communications, illustrating that communication level is not for good.
Step 2024: if judge that communication level is as good.
Step 2025: if not, judges that communication level is not as good.
Step 203: if not, regulates the impedance of the communication line of air-conditioner set, and whether the communication level continuing to judge air-conditioner set is good step.
On the connection of air-conditioner set, be provided with the device regulated the impedance of air-conditioner set communication line, the impedance of this device to air-conditioner set communication line regulates.When the communication level of air-conditioner set is not good, regulate by regulating the impedance of potentiometer to the communication line of air-conditioner set of device described in communication line.When the communication level of air-conditioner set is not good, display does not have show or display NO or all are when can represent the not good mark of the communication level of air-conditioner set, regulator potentiometer, make the impedance of the communication line of air-conditioner set can and actual conditions match.Until when the communication level of air-conditioner set is good, stop regulator potentiometer.
Step 204: if terminate adjustment.
When the communication level of air-conditioner set is good, when display to show OK or communication level that all can represent air-conditioner set be good mark, terminate adjustment potentiometer.
The invention provides a kind of air-conditioner outdoor unit of communication line impedance adjustable, method and comprise the system of device, current large-size air conditioning unit cable run distance is long, installation environment is complicated, interference is many, the dynamic conditioning of communication signal can be realized by the present invention, the communication bit error rate of air-conditioner set is met design requirement, thus guarantees that air-conditioner set is operated in stable state, reduce fraction defective, improve the comfortableness of user.
Below be only illustrating of doing for the preferred embodiments of the present invention and know-why thereof; and the restriction not technology contents of the present invention carried out; anyly be familiar with those skilled in the art in technical scope disclosed in this invention; the change easily expected or replacement, all should be encompassed in protection scope of the present invention.
Claims (12)
1. an off-premises station device for communication line impedance adjustable, is characterized in that, comprising:
Air-conditioner host, communication quality decision maker, sig-nal-conditioning unit;
Described communication quality decision maker is connected with described air-conditioner host, and is connected in the communication line of air-conditioner set, and described communication quality decision maker judges the communication level of air-conditioner set communication line, and shows result of determination;
Described sig-nal-conditioning unit is connected with described air-conditioner host, and is connected in the communication line of air-conditioner set, and the impedance of described sig-nal-conditioning unit to the communication line of air-conditioner set regulates.
2. device according to claim 1, it is characterized in that, described air-conditioner host comprises air-conditioning communication receiving/transmission device, and described air-conditioning communication receiving/transmission device comprises two PORT COMs, and described air-conditioning communication receiving/transmission device is transmitted by described PORT COM after being changed by communication signal.
3. device according to claim 2, is characterized in that, described sig-nal-conditioning unit is regulated by the impedance of potentiometer to the communication line of air-conditioner set.
4. device according to claim 3, is characterized in that, described sig-nal-conditioning unit comprises the first resistance, the second resistance, potentiometer and electric capacity;
One end of described first resistance is connected with one end of described second resistance, and the other end of described first resistance is connected with two PORT COMs of described air-conditioner host respectively with the other end of described second resistance;
The sliding end of described potentiometer is connected with a stiff end, and is connected with the tie point of described first resistance with described second resistance, and another stiff end of described potentiometer is connected with one end of described electric capacity, the other end ground connection of described electric capacity.
5. device according to claim 1, is characterized in that, described communication quality decision maker judges the communication level of air-conditioner set communication line according to the communication signal transmitted in described communication line.
6. device according to claim 5, is characterized in that, described communication quality decision maker comprises detection module and judge module, and described detection module is connected with judge module;
Whether described detection module is correct for detecting each communication in communication line, and calculates the accuracy from start to Current communications;
Described judge module for judging whether the accuracy of Current communications reaches threshold value, and judges communication level according to judged result.
7. device according to claim 6, is characterized in that, described detection module specifically for by reference signal compared with the communication signal in the described communication line received, judge that whether communication correct according to the result that compares.
8. an air-conditioner set system for communication line impedance adjustable, is characterized in that, comprising:
Off-premises station, indoor units, connection;
The quantity of the indoor set comprised in described indoor units is more than or equal to 2;
The all indoor sets comprised in described indoor units are in parallel by connection, and are connected with described off-premises station by connection, and duty is passed to off-premises station by described all indoor sets;
Wherein, described off-premises station comprises: air-conditioner host, communication quality decision maker, sig-nal-conditioning unit;
Described communication quality decision maker is connected with described air-conditioner host, and is connected in the communication line of air-conditioner set, and described communication quality decision maker judges the communication level of air-conditioner set communication line, and shows result of determination;
Described sig-nal-conditioning unit is connected with described air-conditioner host, and is connected in the communication line of air-conditioner set, and the impedance of described sig-nal-conditioning unit to the communication line of air-conditioner set regulates.
9. a method for adjusting air conditioning group communication line impedance, is characterized in that, comprising:
Transmit the duty of all indoor sets;
According to the duty of described all indoor sets, judge that whether the communication level of air-conditioner set is as good, and show judged result;
If not, the impedance of the communication line of air-conditioner set is regulated, and whether the communication level continuing to judge air-conditioner set is good step;
If so, adjustment is terminated.
10. method according to claim 9, is characterized in that, judges whether the communication level of air-conditioner set communication line comprises as good:
Judge that in communication line, whether each communication is correct;
Calculate the accuracy from start to Current communications;
Judge whether the accuracy of Current communications reaches threshold value;
If so, judge that communication level is as good;
If not, judge that communication level is not as good.
11. methods according to claim 10, is characterized in that, describedly judge in communication line, whether each communication correctly comprises:
By reference signal compared with the communication signal in the described communication line received;
If described reference signal is identical with the communication signal in the described communication line received, judge that communication is correct;
If described reference signal is not identical with the communication signal in the described communication line received, judge that communication is wrong.
12. methods according to claim 9, is characterized in that, when the communication level of air-conditioner set is not good, regulate by regulating the impedance of potentiometer to the communication line of air-conditioner set in communication line.
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| CN106302696A (en) * | 2016-08-11 | 2017-01-04 | 珠海格力电器股份有限公司 | Device and method for determining communication rate of air conditioning unit |
| CN107036233A (en) * | 2017-03-27 | 2017-08-11 | 青岛海尔空调电子有限公司 | The indoor unit and outdoor unit means of communication, device and the air conditioner of air conditioning multi-couple unit |
| CN107036233B (en) * | 2017-03-27 | 2020-10-20 | 青岛海尔空调电子有限公司 | Indoor and outdoor unit communication method and device of air conditioner multi-connected unit and air conditioner |
| CN110336588A (en) * | 2019-05-10 | 2019-10-15 | 珠海格力电器股份有限公司 | Impedance self-adaptive matching method and device for long-distance communication line |
| CN110336588B (en) * | 2019-05-10 | 2021-01-15 | 珠海格力电器股份有限公司 | Impedance self-adaptive matching method and device for long-distance communication line |
| CN115751629A (en) * | 2022-12-01 | 2023-03-07 | 珠海格力电器股份有限公司 | Air conditioner communication method, device and system, air conditioning unit and storage medium |
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