CN108019881B - Wire controller power supply control method and device of multi-connected air conditioning system and air conditioner - Google Patents
Wire controller power supply control method and device of multi-connected air conditioning system and air conditioner Download PDFInfo
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Abstract
The invention relates to the technical field of air conditioners, and particularly provides a method and a device for controlling power supply of a wire controller of a multi-connected air conditioning system and an air conditioner, aiming at solving the technical problem of how to automatically determine a power supply host of the wire controller of the multi-connected air conditioning system. The power supply method of the invention firstly generates a random number for the indoor units, and then selects a host which supplies power to the line controller from a plurality of indoor units in a random number countdown mode. Meanwhile, the power supply device can execute and realize the power supply method, and the power supply device is installed in the air conditioner. According to the technical scheme, the indoor units can independently compete as the power supply host, manual setting is not needed, and the installation and maintenance difficulty of the multi-connected air conditioning system is reduced.
Description
Technical Field
The invention relates to the technical field of air conditioners, in particular to a method and a device for controlling power supply of a wire controller of a multi-connected air conditioner system and an air conditioner.
Background
The multi-split air conditioning system comprises a multi-split air conditioning unit and a wire controller in communication connection with the unit. The multi-connected air conditioning unit comprises a plurality of indoor units, wherein one indoor unit is used as a host machine to communicate with the wire controller and supply power to the wire controller. At present, the group address of each indoor unit can be set by adopting a manual dial setting method, and the indoor unit with a specific group address is taken as a host, but the host determination method is complicated in operation, and the installation work of the multi-split air conditioning system is increased. Meanwhile, under the condition of host failure, the group addresses of the failed host and the new host need to be changed manually, so that the maintenance difficulty is increased.
Disclosure of Invention
The method aims to solve the technical problem in the prior art, namely how to realize the automatic determination of the power supply host of the wire controller of the multi-connected air conditioning system. The invention provides a method and a device for controlling power supply of a wire controller of a multi-connected air conditioning system and an air conditioner.
In a first aspect of the present invention, a multi-connected air conditioning system includes a plurality of indoor units, and a communicable power supply line is provided between the plurality of indoor units and a line controller, and a line controller power supply control method of the multi-connected air conditioning system includes:
in the starting process of the multi-connected air conditioning system, generating random numbers corresponding to the indoor units by adopting a preset random number generation method;
counting down according to the generated random numbers respectively;
and when any random number countdown is finished, if the wire controller is in a non-powered state, controlling the indoor unit corresponding to the random number to supply power to the wire controller.
Further, a preferred technical solution provided by the present invention is:
after the step of "counting down respectively according to the generated random numbers", the method further includes:
and before the countdown of any random number is finished, if the line controller is in a power-on state, the countdown of the random number is interrupted.
Further, a preferred technical solution provided by the present invention is:
when the indoor machine supplies power to the wire controller, the method also comprises the following steps of:
if the line controller is detected to be in an unpowered state, the power supply of the indoor unit to the line controller is interrupted;
if the line controller is detected to be in a power-on state, whether the indoor unit is electrically connected with the line controller is judged, and if not, the indoor unit is interrupted to supply power to the line controller.
Further, a preferred technical solution provided by the present invention is:
the step of judging whether the indoor unit is electrically connected with the wire controller specifically comprises the following steps:
controlling the indoor unit to send a detection signal to a wire controller and collecting the detection signal received by the wire controller; under the condition that the power supply line is a line control line, the detection signal is a preset high-low level pulse signal or a preset digital signal;
judging whether the detection signals sent by the indoor unit and collected by the indoor unit are consistent, if so, judging that the indoor unit is electrically connected with the wire controller, and if not, judging that the indoor unit is not electrically connected with the wire controller;
or,
the step of judging whether the indoor unit is electrically connected with the wire controller specifically comprises the following steps:
if the indoor unit receives a connection confirmation signal fed back by the wire controller, the indoor unit is judged to be electrically connected with the wire controller;
if the indoor unit does not receive the connection confirmation signal fed back by the wire controller, the indoor unit is judged to be not electrically connected with the wire controller.
Further, a preferred technical solution provided by the present invention is:
the step of generating the random number corresponding to each indoor unit by adopting a preset random number generation method specifically comprises the following steps:
generating random numbers N corresponding to the indoor units according to a method shown as the following formula:
N＝a×Tmr+b×AD
wherein, T ismrFor presetting the timer count value, AD is the output value of the AD conversion module that any temperature sensor in the current indoor set corresponds, a and b are the preset coefficient, and a ≠ b.
In a second aspect of the present invention, the power supply control device for the line controller of the multi-connected air conditioning system includes:
the random number generation module is configured to generate random numbers corresponding to the indoor units by adopting a preset random number generation method in the starting process of the multi-connected air conditioning system;
a random number timing module configured to count down according to each of the random numbers generated by the random number generation module;
and the first power supply control module is configured to control the indoor unit corresponding to the random number to supply power to the wire controller if the wire controller is in an unpowered state when any random number countdown of the random number timing module is completed.
Further, a preferred technical solution provided by the present invention is:
the device further comprises a second power supply control module and/or a third power supply control module;
the second power supply control module is configured to interrupt the countdown of the random number if the line controller is in a power-on state before the random number counting down is completed by the random number timing module;
and the third power supply control module is configured to judge whether to interrupt power supply according to the power receiving state of the wire controller after the indoor unit supplies power to the wire controller:
if the line controller is detected to be in an unpowered state, the power supply of the indoor unit to the line controller is interrupted;
if the line controller is detected to be in a power-on state, whether the indoor unit is electrically connected with the line controller is judged, and if not, the indoor unit is interrupted to supply power to the line controller.
Further, a preferred technical solution provided by the present invention is:
the third power supply control module comprises a first electric connection judgment unit and/or a second electric connection judgment unit;
the first electrical connection judging unit is configured to perform the following operations:
controlling an indoor unit to send a detection signal to a wire controller, and collecting the detection signal received by the wire controller;
judging whether the detection signals sent by the indoor unit and collected by the indoor unit are consistent, if so, judging that the indoor unit is electrically connected with the wire controller, and if not, judging that the indoor unit is not electrically connected with the wire controller;
the second electrical connection judgment unit is configured to perform the following operations:
if the indoor unit receives a connection confirmation signal fed back by the wire controller, the indoor unit is judged to be electrically connected with the wire controller;
if the indoor unit does not receive the connection confirmation signal fed back by the wire controller, the indoor unit is judged to be not electrically connected with the wire controller.
Further, a preferred technical solution provided by the present invention is:
the random number generation module is further configured to generate a random number according to a method shown by the following formula:
N＝a×Tmr+b×AD
wherein, T ismrFor presetting the timer count value, AD is the output value of the AD conversion module that any temperature sensor in the indoor set corresponds, a and b are the preset coefficient, and a ≠ b.
In a third aspect, the air conditioner in the present invention includes the line controller power supply control device of the multi-split air conditioning system described in the above technical solution.
Compared with the closest prior art, the technical scheme at least has the following beneficial effects:
1. the line controller power supply control method of the multi-connected air conditioning system generates the random number based on the data collected by the temperature sensor of the indoor unit, and can increase the difference of the random number among different indoor units
2. The method for controlling the power supply of the wire controller of the multi-connected air conditioning system can adopt a mode of checking the detection signal or acquiring the connection confirmation signal, judge whether the indoor unit is electrically connected with the wire controller after supplying power to the wire controller, and further judge whether to interrupt the power supply according to the judgment result so as to determine the final power supply host.
Drawings
Fig. 1 is a flowchart illustrating main steps of a power supply control method for a line controller of a multi-connected air conditioning system according to an embodiment of the present invention;
fig. 2 is a flowchart illustrating main steps of a power supply control method for a line controller of another multi-connected air conditioning system according to another embodiment of the present invention;
fig. 3 is a schematic structural diagram of a main structure of a power supply control device of a line controller of a multi-connected air conditioning system according to an embodiment of the present invention.
Detailed Description
Preferred embodiments of the present invention are described below with reference to the accompanying drawings. It should be understood by those skilled in the art that these embodiments are only for explaining the technical principle of the present invention, and are not intended to limit the scope of the present invention.
Before the installation of the multi-split air conditioning system, a main indoor unit responsible for supplying power to the line controller needs to be set in advance, and after the main indoor unit breaks down, a new main indoor unit needs to be set again, so that the maintenance difficulty of the multi-split air conditioning system is increased. Based on the method, the method can control each indoor unit in the multi-connected air-conditioning system to autonomously compete for the main indoor unit, so that other indoor units can be automatically converted into new main indoor units after the current main indoor unit breaks down.
The following describes a power supply control method for a line controller of a multi-connected air conditioning system according to an embodiment of the present invention with reference to the accompanying drawings.
Referring to fig. 1, fig. 1 illustrates the main steps of a method for controlling power supply of a line controller of a multi-connected air conditioning system according to the present embodiment. As shown in fig. 1, in this embodiment, the indoor units in the multi-connected air conditioning system may be controlled to supply power to the line controller according to the following steps, where the multi-connected air conditioning system may include a line controller and a plurality of indoor units, and a communicable power supply line is provided between the plurality of indoor units and the line controller.
Step S101: and in the starting process of the multi-connected air conditioning system, generating random numbers corresponding to the indoor units by adopting a preset random number generation method.
Specifically, in this embodiment, the random number N corresponding to each indoor unit may be generated according to a method shown in the following formula (1):
N＝a×Tmr+b×AD (1)
the meaning of each parameter in the formula (1) is as follows:
Tmrthe method comprises the steps that a timer count value is preset, AD is an output value of an AD conversion module corresponding to any temperature sensor in the current indoor unit, a and b are preset coefficients, and a is not equal to b. In this embodiment, the preset timer count value T corresponding to each indoor unitmrMay be the same or different. Meanwhile, in this embodiment, the temperature sensor refers to a sensor that is disposed in the indoor unit and is used for detecting temperature information such as an indoor environment temperature or an indoor unit working temperature, and the AD conversion module is used for converting analog signals collected by the temperature sensor into digital signals.
Step S102: and respectively counting down according to the generated random numbers.
For example, in the embodiment, the multi-split air conditioning system includes 18 indoor units, and first 18 random numbers can be obtained according to the step S101, and then the 18 random numbers are respectively counted down, and because the random numbers have differences, the counting down completion time of each random number is different.
Step S103: and when any random number countdown is finished, if the line controller is in a non-powered state, controlling the indoor unit corresponding to the random number to supply power to the line controller.
Specifically, as can be seen from the foregoing steps S101 and S102, the countdown completion time of the random number corresponding to each indoor unit is different, and therefore when the line controller is in the non-power-receiving state, which random number countdown is completed first, the corresponding indoor unit is controlled to supply power to the line controller, thereby implementing the indoor unit autonomous competition based on the random number countdown.
In a preferred embodiment of this embodiment, there is a case where the line controller is already in a power-on state before any random number countdown is completed, which indicates that there is an indoor unit supplying power to the line controller, and at this time, the random countdown may be immediately interrupted.
Further, in step S101 shown in fig. 1, there is a case where the random numbers corresponding to the plurality of indoor units are the same, and in this case, in step S103, there is inevitably a case where the plurality of indoor units simultaneously supply power to the line controller. Based on this, in a preferred embodiment of this embodiment, after executing step S103 shown in fig. 1, it may further be determined whether to interrupt power supply from the indoor unit to the line controller according to the following steps, specifically:
if the detection line controller is in an unpowered state, which indicates that the multi-connected air conditioning system has a fault, the power supply of the indoor unit to the line controller can be interrupted.
If the detection wire controller is in a power-on state, it is indicated that the power supply of the multi-connected air conditioning system is normal, but at the moment, the indoor units are all in a power supply state, so that whether the current indoor unit is electrically connected with the wire controller needs to be judged, if the current indoor unit receives the power supply current output by the current indoor unit, and if the current indoor unit does not receive the power supply current output by the current indoor unit, the power supply of the indoor unit to the wire controller can be interrupted under the condition.
In a preferred embodiment of this embodiment, whether the current indoor unit is electrically connected to the line controller may be determined according to the following steps:
(1) and controlling the current indoor unit to send a detection signal to the wire controller and collecting the detection signal received by the wire controller.
Specifically, in the case where the power supply line is a line control line in the present embodiment, the detection signal may be set to a high-low level pulse signal or a digital signal.
In this embodiment, both the line controller and the indoor unit of the multi-connected air conditioning system can be provided with a signal acquisition unit, and the indoor unit and the line controller can exchange information through the signal acquisition unit, so that the line controller can acquire a detection signal sent by the indoor unit and the indoor unit can also acquire a detection signal received by the line controller. Furthermore, under the condition that the power supply line is a line control line and the communication is normal, the indoor unit can also collect the detection signal transmitted in the line control line through the signal collection unit, namely collect the detection signal received by the line controller.
(2) And judging whether the detection signals sent by the indoor unit and collected by the indoor unit are consistent, if so, judging that the indoor unit is electrically connected with the wire controller, and if not, judging that the indoor unit is not electrically connected with the wire controller.
In another preferred embodiment of this embodiment, it can be further determined whether there is an electrical connection between the current indoor unit and the line controller according to the following steps:
if the current indoor machine receives the confirmation connection signal fed back by the wire controller, the current indoor machine is judged to be electrically connected with the wire controller. If the current indoor unit does not receive the confirmation connection signal fed back by the wire controller, the indoor unit is judged to be not electrically connected with the wire controller.
It should be noted that although two specific embodiments for determining whether the current indoor unit is electrically connected to the line controller are disclosed in the present invention, the scope of the present invention is obviously not limited to these specific embodiments, and those skilled in the art can also use other determination methods to achieve the effect of determining whether the current indoor unit is electrically connected to the line controller.
With continuing reference to fig. 2, fig. 2 illustrates the main steps of a line controller power supply control method of another multi-connected air conditioning system in the present embodiment. As shown in fig. 2, in this embodiment, a method for controlling power supply to a line controller of a multi-connected air conditioning system is described by taking a random number corresponding to a current indoor unit as an example, specifically, the current indoor unit may be controlled to supply power to the line controller or interrupt power supply according to the following steps:
step S201: and counting down according to the random number corresponding to the current indoor unit.
Step S202: and judging whether the wire controller is powered on. Specifically, step S203 is executed if the line controller is in the power receiving state, and step S204 is executed if the line controller is not in the power receiving state.
Step S203: the random number timing is interrupted.
Step S204: and judging whether counting down of the random number is finished. Specifically, step S205 is executed if the random number countdown is completed, and if the random number countdown is not completed, it is continuously determined whether the random number countdown is completed.
Step S205: and supplying power to the wire controller. Specifically, the current indoor unit is controlled to supply power to the wire controller.
Step S206: and judging whether the wire controller is powered on. Specifically, step S207 is executed if the line controller is in the power receiving state, and step S210 is executed if the line controller is not in the power receiving state.
Step S207: and sending a detection signal to the wire controller. Specifically, the current indoor unit is controlled to send a detection signal to the wire controller.
Step S208: and judging whether the sent and collected detection signals are consistent. Specifically, step S209 is executed if the current indoor unit sends a detection signal that is consistent with the collected detection signal, and step S210 is executed if the current indoor unit sends a detection signal that is inconsistent with the collected detection signal. The detection signal collected by the current indoor unit refers to the detection signal received by the wire controller.
Step S209: and continuously supplying power to the wire controller. Specifically, the current indoor unit is controlled to continue to supply power to the line controller, namely the current indoor unit is the finally determined main indoor unit.
Step S210: the power supply is interrupted. Specifically, the current indoor unit is controlled to interrupt power supply to the wire controller.
In the embodiment, random numbers are distributed to each indoor unit, and the indoor unit which supplies power to the line controller is selected by adopting a random number countdown mode, so that the multi-connected air conditioning system can automatically supply power to the line controller, and the installation and maintenance difficulty of the multi-connected air conditioning system is reduced.
Although the foregoing embodiments describe the steps in the above sequential order, those skilled in the art will understand that, in order to achieve the effect of the present embodiments, the steps may not be executed in such an order, and may be executed simultaneously (in parallel) or in an inverse order, and these simple variations are within the scope of the present invention.
Based on the same technical concept as the method embodiment, the embodiment of the invention also provides a power supply control device of the wire controller of the multi-connected air conditioning system. The power supply control device of the wire controller of the multi-connected air conditioning system will be specifically described with reference to the accompanying drawings.
Referring to fig. 3, fig. 3 illustrates a main structure of a line controller power supply control device of a multi-connected air conditioning system according to the present embodiment. As shown in fig. 3, the line controller power supply control device of the multi-connected air conditioning system in this embodiment may include a random number generation module 11, a random number timing module 12, and a first power supply control module 13.
Specifically, in this embodiment, a communicable power supply line is provided between the indoor units and the line controller in the multi-split air conditioning system. The random number generation module 11 may be configured to generate a random number corresponding to each indoor unit by using a preset random number generation method during the starting process of the multi-connected air conditioning system. The random number timing module 12 may be configured to count down according to each random number generated by the random number generation module 11. The first power supply control module 13 may be configured to control the indoor unit corresponding to the random number to supply power to the line controller when the random number counting module 12 finishes counting down any random number and the line controller is in an unpowered state.
Further, the power supply apparatus for a line controller in this embodiment further includes a third control module, where the third control module may be configured to determine whether to interrupt power supply according to a power receiving state of the line controller after the indoor unit supplies power to the line controller:
if the detection line controller is in a non-powered state, the power supply of the indoor unit to the line controller is interrupted;
if the wire controller is detected to be in a power-on state, whether the indoor unit is electrically connected with the wire controller is judged, and if not, the indoor unit is interrupted to supply power to the wire controller.
Specifically, the third power supply control module in this embodiment may include a first electrical connection determination unit and a second electrical connection determination unit.
The first electrical connection judgment unit may be configured to perform the following operations:
controlling the indoor unit to send a detection signal to the wire controller and collecting the detection signal received by the wire controller; wherein, under the condition that the power supply line is a line control line, the detection signal can be a preset high-low level pulse signal or a digital signal;
and judging whether the detection signals sent by the indoor unit and collected by the indoor unit are consistent, if so, judging that the indoor unit is electrically connected with the wire controller, and if not, judging that the indoor unit is not electrically connected with the wire controller.
The second electrical connection judgment unit may be configured to perform the following operations:
if the indoor unit receives a connection confirmation signal fed back by the wire controller, the indoor unit is judged to be electrically connected with the wire controller; if the indoor unit does not receive the connection confirmation signal fed back by the wire controller, the indoor unit is judged to be not electrically connected with the wire controller.
Further, in this embodiment, the random number generation module 11 may generate the random number according to the method shown in formula (1).
The above-mentioned power supply device for a line controller of a multi-connected power supply system can be used to implement the above-mentioned power supply control method embodiment of the line controller of the multi-connected air conditioning system, and its technical principle, solved technical problems and produced technical effects are similar, and it can be clearly understood by those skilled in the art that for convenience and brevity of description, the specific working process and related descriptions of the above-mentioned multi-connected air conditioning system can refer to the corresponding process in the above-mentioned power supply control method embodiment of the line controller of the multi-connected air conditioning system, and no further description is given here.
Further, based on the embodiment of the power supply device for the line controller of the multi-connected power supply system, the invention also provides an air conditioner, which comprises the power supply control device for the line controller of the multi-connected power supply system, so that when the multi-connected power supply system adopts the air conditioner, the automatic power supply for the line controller can be realized, and the installation and maintenance difficulty is reduced.
Those skilled in the art will appreciate that the above-described drive-by-wire power control apparatus of the multi-connected air conditioning system further includes some other known structures, such as a processor, a controller, a memory, etc., wherein the memory includes, but is not limited to, a random access memory, a flash memory, a read only memory, a programmable read only memory, a volatile memory, a non-volatile memory, a serial memory, a parallel memory, or a register, etc., and the processor includes, but is not limited to, a CPLD/FPGA, a DSP, an ARM processor, a MIPS processor, etc., and these known structures are not shown in fig. 3 in order to unnecessarily obscure the embodiments of the present disclosure.
It should be understood that the number of individual modules in fig. 3 is merely illustrative. The number of modules may be any according to actual needs.
Furthermore, those skilled in the art will appreciate that while some embodiments described herein include some features included in other embodiments, rather than other features, combinations of features of different embodiments are meant to be within the scope of the invention and form different embodiments. For example, in the claims of the present invention, any of the claimed embodiments may be used in any combination.
The various component embodiments of the invention may be implemented in hardware, or in software modules running on one or more processors, or in a combination thereof. Those skilled in the art will appreciate that a microprocessor or Digital Signal Processor (DSP) may be used in practice to implement some or all of the functionality of some or all of the components in a server, client, or the like, according to embodiments of the present invention. The present invention may also be embodied as an apparatus or device program (e.g., PC program and PC program product) for carrying out a portion or all of the methods described herein. Such a program implementing the invention may be stored on a PC readable medium or may be in the form of one or more signals. Such a signal may be downloaded from an internet website or provided on a carrier signal or in any other form.
It should be noted that the above-mentioned embodiments illustrate rather than limit the invention, and that those skilled in the art will be able to design alternative embodiments without departing from the scope of the appended claims. In the claims, any reference signs placed between parentheses shall not be construed as limiting the claim. The word "comprising" does not exclude the presence of elements or steps not listed in a claim. The word "a" or "an" preceding an element does not exclude the presence of a plurality of such elements. The invention may be implemented by means of hardware comprising several distinct elements, and by means of a suitably programmed PC. In the unit claims enumerating several means, several of these means may be embodied by one and the same item of hardware. The usage of the words first, second and third, etcetera do not indicate any ordering. These words may be interpreted as names.
So far, the technical solutions of the present invention have been described in connection with the preferred embodiments shown in the drawings, but it is easily understood by those skilled in the art that the scope of the present invention is obviously not limited to these specific embodiments. Equivalent changes or substitutions of related technical features can be made by those skilled in the art without departing from the principle of the invention, and the technical scheme after the changes or substitutions can fall into the protection scope of the invention.
Claims (8)
1. A power supply control method for a wire controller of a multi-connected air conditioning system is characterized in that the multi-connected air conditioning system comprises a plurality of indoor units, and a communicable power supply line is arranged between the indoor units and the wire controller; the method comprises the following steps:
in the starting process of the multi-connected air conditioning system, generating random numbers corresponding to the indoor units by adopting a preset random number generation method, specifically generating random numbers N corresponding to the indoor units according to a method shown in the following formula:
N＝a×Tmr+b×AD
wherein, T ismrThe value is a preset timer count value, the AD is an output value of an AD conversion module corresponding to any temperature sensor in the current indoor unit, a and b are preset coefficients, and a is not equal to b;
counting down according to the generated random numbers respectively;
and when any random number countdown is finished, if the wire controller is in a non-powered state, controlling the indoor unit corresponding to the random number to supply power to the wire controller.
2. The method of claim 1, wherein after the step of separately counting down according to the generated random numbers, the method further comprises:
and before the countdown of any random number is finished, if the line controller is in a power-on state, the countdown of the random number is interrupted.
3. The method of claim 1, further comprising the step of determining whether the power supply is interrupted after the indoor unit supplies power to the line controller:
if the line controller is detected to be in an unpowered state, the power supply of the indoor unit to the line controller is interrupted;
if the line controller is detected to be in a power-on state, whether the indoor unit is electrically connected with the line controller is judged, and if not, the indoor unit is interrupted to supply power to the line controller.
4. The method of claim 3,
the step of judging whether the indoor unit is electrically connected with the wire controller specifically comprises the following steps:
controlling the indoor unit to send a detection signal to a wire controller and collecting the detection signal received by the wire controller; under the condition that the power supply line is a line control line, the detection signal is a preset high-low level pulse signal or a preset digital signal;
judging whether the detection signals sent by the indoor unit and collected by the indoor unit are consistent, if so, judging that the indoor unit is electrically connected with the wire controller, and if not, judging that the indoor unit is not electrically connected with the wire controller;
or,
the step of judging whether the indoor unit is electrically connected with the wire controller specifically comprises the following steps:
if the indoor unit receives a connection confirmation signal fed back by the wire controller, the indoor unit is judged to be electrically connected with the wire controller;
if the indoor unit does not receive the connection confirmation signal fed back by the wire controller, the indoor unit is judged to be not electrically connected with the wire controller.
5. A power supply control device for a wire controller of a multi-connected air conditioning system is characterized in that the system comprises a plurality of indoor units, and a communicable power supply line is arranged between the indoor units and the wire controller; the device comprises:
the random number generation module is configured to generate random numbers corresponding to the indoor units by adopting a preset random number generation method in the starting process of the multi-connected air conditioning system;
a random number timing module configured to count down according to each of the random numbers generated by the random number generation module;
the first power supply control module is configured to control the indoor unit corresponding to the random number to supply power to the line controller when the random number counting module finishes counting down any random number and the line controller is in an unpowered state;
the random number generation module is further configured to generate a random number N according to the method shown in the following formula:
N＝a×Tmr+b×AD
wherein, T ismrFor presetting a timerThe counting value, AD is the output value of the AD conversion module that any temperature sensor in the indoor set corresponds, a and b are the coefficient of predetermineeing, and a ≠ b.
6. The device of claim 5, further comprising a second power supply control module and/or a third power supply control module;
the second power supply control module is configured to interrupt the countdown of the random number if the line controller is in a power-on state before the random number counting down is completed by the random number timing module;
and the third power supply control module is configured to judge whether to interrupt power supply according to the power receiving state of the wire controller after the indoor unit supplies power to the wire controller:
if the line controller is detected to be in an unpowered state, the power supply of the indoor unit to the line controller is interrupted;
if the line controller is detected to be in a power-on state, whether the indoor unit is electrically connected with the line controller is judged, and if not, the indoor unit is interrupted to supply power to the line controller.
7. The apparatus according to claim 6, wherein the third power supply control module comprises a first electrical connection judgment unit and/or a second electrical connection judgment unit;
the first electrical connection judging unit is configured to perform the following operations:
controlling an indoor unit to send a detection signal to a wire controller, and collecting the detection signal received by the wire controller;
judging whether the detection signals sent by the indoor unit and collected by the indoor unit are consistent, if so, judging that the indoor unit is electrically connected with the wire controller, and if not, judging that the indoor unit is not electrically connected with the wire controller;
the second electrical connection judgment unit is configured to perform the following operations:
if the indoor unit receives a connection confirmation signal fed back by the wire controller, the indoor unit is judged to be electrically connected with the wire controller;
if the indoor unit does not receive the connection confirmation signal fed back by the wire controller, the indoor unit is judged to be not electrically connected with the wire controller.
8. An air conditioner characterized by comprising the line controller power supply control device of the multi-connected air conditioning system according to any one of claims 5 to 7.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201711107036.XA CN108019881B (en) | 2017-11-10 | 2017-11-10 | Wire controller power supply control method and device of multi-connected air conditioning system and air conditioner |
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| CN201711107036.XA CN108019881B (en) | 2017-11-10 | 2017-11-10 | Wire controller power supply control method and device of multi-connected air conditioning system and air conditioner |
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| CN108800482B (en) * | 2018-05-24 | 2020-08-14 | 青岛海信电子设备股份有限公司 | Air conditioner cluster control method |
| CN109210733B (en) * | 2018-08-30 | 2021-02-23 | 青岛海信日立空调系统有限公司 | Drive-by-wire ware and air conditioner |
| CN109682014B (en) * | 2018-12-13 | 2021-05-18 | Tcl空调器(中山)有限公司 | Control method for powering on air conditioner after power failure, air conditioner and storage medium |
| FR3090859B1 (en) | 2018-12-19 | 2021-09-10 | Continental Automotive France | Synchronization of an internal combustion engine |
| CN110274363B (en) * | 2019-06-26 | 2021-04-30 | 珠海格力电器股份有限公司 | Air conditioner control method and device and air conditioner |
| CN114360100B (en) * | 2020-09-27 | 2024-08-02 | 比亚迪半导体股份有限公司 | Control method, device, system and medium for intelligent door lock |
| CN113048615B (en) * | 2021-03-29 | 2022-04-22 | 珠海格力电器股份有限公司 | Air conditioning system, communication control method and device thereof, storage medium and processor |
| CN113915742B (en) * | 2021-09-08 | 2023-12-22 | 青岛海尔空调电子有限公司 | Communication control method and device for multi-split air conditioning system |
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