CN111089413B - Power supply management method and device and multi-online system - Google Patents
Power supply management method and device and multi-online system Download PDFInfo
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- CN111089413B CN111089413B CN201911410779.3A CN201911410779A CN111089413B CN 111089413 B CN111089413 B CN 111089413B CN 201911410779 A CN201911410779 A CN 201911410779A CN 111089413 B CN111089413 B CN 111089413B
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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
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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
- F24F11/62—Control or safety arrangements characterised by the type of control or by internal processing, e.g. using fuzzy logic, adaptive control or estimation of values
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- Y02B—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
- Y02B70/00—Technologies for an efficient end-user side electric power management and consumption
- Y02B70/30—Systems integrating technologies related to power network operation and communication or information technologies for improving the carbon footprint of the management of residential or tertiary loads, i.e. smart grids as climate change mitigation technology in the buildings sector, including also the last stages of power distribution and the control, monitoring or operating management systems at local level
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- Y04S20/00—Management or operation of end-user stationary applications or the last stages of power distribution; Controlling, monitoring or operating thereof
- Y04S20/20—End-user application control systems
- Y04S20/221—General power management systems
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
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- Y04S20/00—Management or operation of end-user stationary applications or the last stages of power distribution; Controlling, monitoring or operating thereof
- Y04S20/20—End-user application control systems
- Y04S20/242—Home appliances
- Y04S20/244—Home appliances the home appliances being or involving heating ventilating and air conditioning [HVAC] units
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Abstract
The invention relates to a power supply management method, a power supply management device and a multi-online system, wherein the method comprises the following steps: collecting an electrical parameter value of an output end of the wire controller; comparing the electrical parameter values with a first set value and a second set value respectively to obtain comparison results; wherein the first set value is less than the second set value; generating power supply control information of a power supply corresponding to the wire controller according to the comparison result; and controlling the power supply voltage input by the power supply to the wire controller according to the power supply control information so that the wire controller outputs electrical parameters matched with the load corresponding to the wire controller, thereby dynamically adjusting the power supply voltage input by the power supply to the wire controller. By adopting the technical scheme of the invention, the load corresponding to the wire controller can be normally supplied with power under the condition of remote power supply carrier communication.
Description
Technical Field
The invention relates to the technical field of power carrier communication, in particular to a power management method, a power management device and a multi-split system.
Background
In a commercial multi-split system, in order to facilitate installation and save cost, a two-core wire communication is usually adopted between a wire controller and an inner machine mainboard of an indoor machine in the multi-split system. The communication signal is loaded to the power supply for transmission by using a power supply carrier communication mode, so that the communication and the power supply coexist.
However, the communication distance is often limited by the wire diameter material of the communication wire, the longer the communication wire is, the larger the resistance on the wire is, the larger the divided voltage is, and the divided voltage at the wire controller end is lower under the condition that the output voltage of the power supply is constant, and along with the increase of the communication distance, the voltage of the wire controller is lower, even no power is supplied, so that the load corresponding to the wire controller cannot be normally supplied.
Disclosure of Invention
In view of the above, an object of the present invention is to provide a power management method and apparatus, and a multi-split system, so as to solve the problem in the prior art that as a communication distance increases, a voltage of a line controller is low, or even no power is available, so that a load corresponding to the line controller cannot be normally supplied.
In order to achieve the above object, the present invention provides a power management method applied in power carrier communication, including:
collecting electrical parameter values of the output end of a wire controller in the multi-split system; the multi-split system comprises a power supply;
detecting whether the use state of a load interface corresponding to the line controller changes;
if the use state of the load interface changes, acquiring rated electrical parameters of the load;
setting a first set value and a second set value according to rated electrical parameters of the load;
comparing the electrical parameter values with a first set value and a second set value respectively to obtain comparison results; wherein the first set value is less than the second set value;
generating power supply control information of a power supply corresponding to the wire controller according to the comparison result;
and controlling the power supply voltage input by the power supply to the wire controller according to the power supply control information so as to enable the wire controller to output an electrical parameter matched with a load corresponding to the wire controller.
The invention also provides a power supply management device, which is applied to power supply carrier communication and comprises:
the acquisition module is used for acquiring the electrical parameter value of the output end of the wire controller in the multi-split system; the multi-split system comprises a power supply;
the acquisition module is used for detecting whether the use state of the load interface corresponding to the line controller changes; if the use state of the load interface changes, acquiring rated electrical parameters of the load;
the setting module is used for setting a first set value and a second set value according to the rated electrical parameters of the load;
the comparison module is used for comparing the electrical parameter value with a first set value and a second set value respectively to obtain a comparison result;
the generating module is used for generating power supply control information of a power supply corresponding to the wire controller according to the comparison result;
and the control module is used for controlling the power supply voltage input to the wire controller by the power supply according to the power supply control information so as to enable the wire controller to output the electrical parameters matched with the load corresponding to the wire controller.
The invention also provides a multi-split system, which comprises an indoor unit and a wire controller;
the indoor unit comprises a power supply and a first processing chip;
the wire controller comprises an acquisition component and a second processing chip;
the first processing chip is connected with the second processing chip in a power supply carrier communication mode;
the second processing chip is also connected with the power supply in a power supply carrier communication mode;
the first processing chip is also in signal connection with the power supply;
the second processing chip is also in signal connection with the acquisition assembly;
the acquisition assembly is used for acquiring the electrical parameter value of the output end of the line controller;
the second processing chip is used for detecting whether the use state of the load interface corresponding to the line controller changes; if the use state of the load interface changes, acquiring rated electrical parameters of the load; setting a first set value and a second set value according to rated electrical parameters of the load; comparing the electrical parameter values with a first set value and a second set value respectively to obtain comparison results; generating power supply control information of the power supply according to the comparison result;
and the first processing chip is used for controlling the power supply voltage input by the power supply to the wire controller according to the power supply control information so as to enable the wire controller to output an electrical parameter matched with a load corresponding to the wire controller.
According to the power management method, the device and the multi-online system, the electrical parameter value of the output end of the wire controller is collected and is compared with the first set value and the second set value respectively to obtain the comparison result, the power supply control information of the power supply corresponding to the wire controller is generated according to the comparison result, and the power supply voltage input to the wire controller by the power supply is controlled according to the power supply control information, so that the wire controller outputs the electrical parameter matched with the load corresponding to the wire controller, and the power supply voltage input to the wire controller by the power supply is dynamically adjusted. By adopting the technical scheme of the invention, the load corresponding to the wire controller can be normally supplied with power under the condition of remote power supply carrier communication.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the drawings without creative efforts.
FIG. 1 is a flow chart of an embodiment of a power management method of the present invention;
FIG. 2 is a schematic structural diagram of a power management device according to a first embodiment of the present invention;
FIG. 3 is a schematic structural diagram of a second embodiment of a power management device according to the present invention;
fig. 4 is a schematic structural diagram of an embodiment of a multi-split system according to the present invention.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more apparent, the technical solutions of the present invention will be described in detail below. It is to be understood that the described embodiments are merely exemplary of the invention, and not restrictive of the full scope of the invention. All other embodiments, which can be derived by a person skilled in the art from the examples given herein without any inventive step, are within the scope of the present invention.
Fig. 1 is a flowchart of an embodiment of a power management method according to the present invention, wherein the power management method is applied to power carrier communication. As shown in fig. 1, the power management method of this embodiment may specifically include the following steps:
100. collecting an electrical parameter value of an output end of the wire controller;
in this embodiment, after an indoor unit in the multi-split system is powered on, a power supply of the indoor unit alternately outputs a voltage signal and a communication signal to the line controller, and at this time, the current sensor, the voltage sensor and the like can monitor and acquire electrical parameter values such as a current value and a voltage value of an output end of the line controller in real time.
101. Comparing the collected electrical parameter values with a first set value and a second set value respectively to obtain a comparison result;
after the electrical parameter value of the output end of the line controller is collected, the collected electrical parameter value can be compared with the first set value and the second set value respectively to obtain a comparison result. Wherein the first set value is smaller than the second set value.
For example, the technical solution of the present invention is described by taking the voltage value collected to the output terminal of the line controller as an example. The voltage value of the output end of the wire controller is set as b, the first set value is set as c, and the second set value is set as a. If c < b < a, the voltage value of the output end of the line controller is normal; if b < c, the voltage value of the output end of the line controller is lower; if b > a, the voltage value of the output end of the wire controller is higher.
102. Generating power supply control information of a power supply corresponding to the wire controller according to the obtained comparison result;
after the comparison result between the electrical parameter value and the first set value and the second set value is obtained, the power supply control information of the power supply corresponding to the line controller can be generated. Specifically, if the voltage value of the output end of the line controller is normal, the power supply control information that the power supply voltage is maintained as the power supply can be obtained; if the voltage value of the output end of the wire controller is lower, the power supply control information of the power supply which is used for improving the power supply voltage can be obtained; if the voltage value of the output end of the wire controller is higher, the reduced power supply voltage can be obtained and used as the power supply control information of the power supply.
103. And controlling the power supply voltage input by the power supply to the line controller according to the determined power supply control information.
In a specific implementation process, after the power supply control information of the power supply is determined, the power supply voltage input by the power supply to the line controller can be controlled according to the determined power supply control information, so that the line controller outputs electrical parameters matched with the load corresponding to the line controller, and the power supply voltage input by the power supply to the line controller is dynamically adjusted. Like this, even the distance of power carrier communication is longer, also can guarantee that line controller output and load assorted electrical parameter, make the load can normally work, simultaneously, owing to can the line controller output with the load assorted electrical parameter that line controller corresponds, can amplify or reduce the load to guarantee when the amplification load, provide sufficient voltage, when deleting the load, can save the electric energy.
Specifically, if the determined power supply control information of the power supply is the maintained power supply voltage, it indicates that the output voltage of the line controller in this case can satisfy the voltage required by the corresponding load, and at this time, the duty ratio of a Pulse Width Modulation (PWM) signal corresponding to the power supply can be kept unchanged, so as to obtain a first power supply voltage corresponding to the PWM signal, so that the line controller outputs a power supply voltage matched with the load corresponding to the line controller.
If the power supply control information is to reduce the power supply voltage, it indicates that the output voltage of the line controller is higher than the voltage required by the corresponding load under the condition, and electric energy is wasted relatively, and at this time, the duty ratio of the PWM signal can be reduced to obtain a second power supply voltage corresponding to the PWM signal, so that the line controller outputs a power supply voltage matched with the load corresponding to the line controller.
If the power supply control information is to increase the power supply voltage, it indicates that the output of the line controller is lower than the voltage required by the corresponding load under the condition, and the load cannot work normally.
In the power management method of this embodiment, the electrical parameter value of the output end of the line controller is collected, the electrical parameter value is compared with the first set value and the second set value respectively to obtain the comparison result, the power supply control information of the power supply corresponding to the line controller is generated according to the comparison result, and the power supply voltage input by the power supply to the line controller is controlled according to the power supply control information, so that the line controller outputs the electrical parameter matched with the load corresponding to the line controller, thereby dynamically adjusting the power supply voltage input by the power supply to the line controller. By adopting the technical scheme of the invention, the load corresponding to the wire controller can be normally supplied with power under the condition of remote power supply carrier communication. Meanwhile, the expansibility of the load of the wire controller is improved.
In a specific implementation process, the first setting value and the second setting value in step 101 in the foregoing embodiment may be set by a user according to actual requirements, but in practical applications, the user may not accurately know the electrical parameters actually required by the load, and therefore, in this embodiment, the first setting value and the second setting value may also be set according to the following manner:
a. obtaining rated electrical parameters of a load;
in this embodiment, after the load is connected to the line controller, the rated electrical parameters of the load can be uploaded, so that the line controller can obtain the rated electrical parameters of the load.
b. The first set value and the second set value are set according to the rated electrical parameters of the load.
After the rated electrical parameters of the load are obtained, the first set value and the second set value can be determined and set according to the preset allowable error value, so that the user is prevented from inputting the first set value and the second set value, and the efficiency is improved.
Further, in the above embodiment, since there may be a situation of increasing or decreasing the load, which may cause a change in the power supply voltage input by the power supply to the line controller, in this embodiment, when step a is executed, it is necessary to detect whether the use state of the load interface corresponding to the line controller changes; and if the use state of the load interface changes, acquiring the rated electrical parameters of the load.
Specifically, when the load interface is not connected to the load, the line controller may obtain that the identifier corresponding to the use state of the load interface is 0, which indicates that the use state of the load interface is the unused state, and when the load interface is connected to the load, the line controller may obtain that the identifier corresponding to the use state of the load interface is 1, which indicates that the use state of the load interface is the used state. Therefore, in this embodiment, when it is detected that the identifier of the use state of the load interface changes between 0 and 1, it is described that the use state of the load interface changes, and at this time, it is necessary to acquire the rated electrical parameter of the load.
For example, a voice module may be added to the line controller to implement an online voice function, and a Wireless fidelity (WIFI) module may be added to implement a network connection to the background database. And meanwhile, loads corresponding to other functions with large power consumption requirements, such as a camera, a large-size color screen, Bluetooth and the like, are added.
In order to be more comprehensive, the present application further provides a power management apparatus corresponding to the power management method provided in the embodiment of the present invention, wherein the power management apparatus is applied to power carrier communication. Fig. 2 is a schematic structural diagram of a first embodiment of a power management device, as shown in fig. 2, the power management device of this embodiment includes an acquisition module 10, a comparison module 11, a generation module 12, and a control module 13.
The acquisition module 10 is used for acquiring the electrical parameter value of the output end of the line controller;
wherein the electrical parameter value may comprise a voltage value and/or a current value.
The comparison module 11 is configured to compare the electrical parameter value with a first set value and a second set value respectively to obtain a comparison result;
a generating module 12, configured to generate power supply control information of the power supply corresponding to the line controller according to the comparison result;
and the control module 13 is configured to control a power supply voltage input by the power supply to the line controller according to the power supply control information, so that the line controller outputs an electrical parameter matched with a load corresponding to the line controller.
The power management device of the embodiment collects the electrical parameter value of the output end of the line controller, compares the electrical parameter value with the first set value and the second set value respectively to obtain the comparison result, generates the power supply control information of the power supply corresponding to the line controller according to the comparison result, and controls the power supply voltage input by the power supply to the line controller according to the power supply control information, so that the line controller outputs the electrical parameter matched with the load corresponding to the line controller, and the dynamic adjustment of the power supply voltage input by the power supply to the line controller is realized. By adopting the technical scheme of the invention, the load corresponding to the wire controller can be normally supplied with power under the condition of remote power supply carrier communication.
Further, in the above-described embodiments, the power supply control information includes maintaining the power supply voltage, decreasing the power supply voltage, or increasing the power supply voltage.
The control module 13 is specifically configured to:
if the power supply control information is the maintenance power supply voltage, keeping the duty ratio of the Pulse Width Modulation (PWM) signal corresponding to the power supply unchanged to obtain a first power supply voltage corresponding to the PWM signal;
if the power supply control information is to reduce the power supply voltage, reducing the duty ratio of the PWM signal to obtain a second power supply voltage corresponding to the PWM signal;
and if the power supply control information is to increase the power supply voltage, increasing the duty ratio of the PWM signal to obtain a third power supply voltage corresponding to the PWM signal.
Fig. 3 is a schematic structural diagram of a second embodiment of the power management device of the present invention, and as shown in fig. 3, the power management device of this embodiment may further include an obtaining module 14 and a setting module 15 on the basis of the above embodiments.
An obtaining module 14, configured to obtain a rated electrical parameter of a load;
and the setting module 15 is used for setting the first set value and the second set value according to the rated electrical parameters of the load.
Further, the obtaining module 14 in the above embodiment is specifically configured to:
detecting whether the use state of a load interface corresponding to the line controller changes;
and if the use state of the load interface changes, acquiring the rated electrical parameters of the load.
With regard to the apparatus in the above-described embodiment, the specific manner in which each module performs the operation has been described in detail in the embodiment related to the method, and will not be elaborated here.
In order to be more comprehensive, the application also provides a multi-split system corresponding to the power management method provided by the embodiment of the invention. Fig. 4 is a schematic structural diagram of an embodiment of a multi-split system according to the present invention, and as shown in fig. 4, the multi-split system of the present embodiment includes an indoor unit 20 and a line controller 21. The indoor unit 20 includes a power supply 201 and a first processing chip 202, and the line controller 21 includes a collection component 211 and a second processing chip 212. The first processing chip 202 is connected with the second processing chip 212 in a power carrier communication mode, the second processing chip 212 is further connected with the power supply 201 in a power carrier communication mode, the first processing chip 202 is further in signal connection with the power supply 201, and the second processing chip 212 is further in signal connection with the acquisition assembly 211.
In this embodiment, the collecting component 211 is configured to collect an electrical parameter value of the output end of the line controller 21; the second processing chip 212 is configured to compare the electrical parameter value with the first set value and the second set value respectively to obtain a comparison result; generating power supply control information of the power supply 201 according to the comparison result; the first processing chip 202 is configured to control a power supply voltage, which is input to the line controller 21 by the power supply 201, according to the power supply control information, so that the line controller 21 outputs an electrical parameter matched with a load corresponding to the line controller 21.
The multi-split system of the embodiment compares the electrical parameter value with the first set value and the second set value respectively by acquiring the electrical parameter value of the output end of the line controller to obtain the comparison result, generates the power supply control information of the power supply corresponding to the line controller according to the comparison result, and controls the power supply voltage input from the power supply to the line controller according to the power supply control information, so that the line controller outputs the electrical parameter matched with the load corresponding to the line controller, thereby dynamically adjusting the power supply voltage input from the power supply to the line controller. By adopting the technical scheme of the invention, the load corresponding to the wire controller can be normally supplied with power under the condition of remote power supply carrier communication. Meanwhile, the expansibility of the load of the wire controller is improved.
In order to be more comprehensive, corresponding to the power management method provided by the embodiment of the invention, the application also provides a storage medium on which a computer program is stored, and when the computer program is executed by a processor, the steps of the power management method of the embodiment are realized.
It is understood that the same or similar parts in the above embodiments may be mutually referred to, and the same or similar parts in other embodiments may be referred to for the content which is not described in detail in some embodiments.
It should be noted that the terms "first," "second," and the like in the description of the present invention are used for descriptive purposes only and are not to be construed as indicating or implying relative importance. Further, in the description of the present invention, the meaning of "a plurality" means at least two unless otherwise specified.
Any process or method descriptions in flow charts or otherwise described herein may be understood as representing modules, segments, or portions of code which include one or more executable instructions for implementing specific logical functions or steps of the process, and alternate implementations are included within the scope of the preferred embodiment of the present invention in which functions may be executed out of order from that shown or discussed, including substantially concurrently or in reverse order, depending on the functionality involved, as would be understood by those reasonably skilled in the art of the present invention.
It should be understood that portions of the present invention may be implemented in hardware, software, firmware, or a combination thereof. In the above embodiments, the various steps or methods may be implemented in software or firmware stored in memory and executed by a suitable instruction execution system. For example, if implemented in hardware, as in another embodiment, any one or combination of the following techniques, which are known in the art, may be used: a discrete logic circuit having a logic gate circuit for implementing a logic function on a data signal, an application specific integrated circuit having an appropriate combinational logic gate circuit, a Programmable Gate Array (PGA), a Field Programmable Gate Array (FPGA), or the like.
It will be understood by those skilled in the art that all or part of the steps carried by the method for implementing the above embodiments may be implemented by hardware related to instructions of a program, which may be stored in a computer readable storage medium, and when the program is executed, the program includes one or a combination of the steps of the method embodiments.
In addition, functional units in the embodiments of the present invention may be integrated into one processing module, or each unit may exist alone physically, or two or more units are integrated into one module. The integrated module can be realized in a hardware mode, and can also be realized in a software functional module mode. The integrated module, if implemented in the form of a software functional module and sold or used as a stand-alone product, may also be stored in a computer readable storage medium.
The storage medium mentioned above may be a read-only memory, a magnetic or optical disk, etc.
In the description herein, references to the description of the term "one embodiment," "some embodiments," "an example," "a specific example," or "some examples," etc., mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the invention. In this specification, the schematic representations of the terms used above do not necessarily refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.
Although embodiments of the present invention have been shown and described above, it is understood that the above embodiments are exemplary and should not be construed as limiting the present invention, and that variations, modifications, substitutions and alterations can be made to the above embodiments by those of ordinary skill in the art within the scope of the present invention.
Claims (6)
1. A power management method, applied to power carrier communication, the method comprising:
collecting electrical parameter values of the output end of a wire controller in the multi-split system; the multi-split system comprises a power supply;
detecting whether the use state of a load interface corresponding to the line controller changes;
if the use state of the load interface changes, acquiring rated electrical parameters of the load;
setting a first set value and a second set value according to rated electrical parameters of the load;
comparing the electrical parameter values with a first set value and a second set value respectively to obtain comparison results; wherein the first set value is less than the second set value;
generating power supply control information of a power supply corresponding to the wire controller according to the comparison result;
and controlling the power supply voltage input by the power supply to the wire controller according to the power supply control information so as to enable the wire controller to output an electrical parameter matched with a load corresponding to the wire controller.
2. The power management method of claim 1, wherein the power control information comprises maintaining a power supply voltage, decreasing a power supply voltage, or increasing a power supply voltage;
the controlling the power supply voltage input by the power supply to the wire controller according to the power supply control information includes:
if the power supply control information is the maintenance power supply voltage, keeping the duty ratio of a Pulse Width Modulation (PWM) signal corresponding to the power supply unchanged to obtain a first power supply voltage corresponding to the PWM signal;
if the power supply control information is the reduced power supply voltage, reducing the duty ratio of the PWM signal to obtain a second power supply voltage corresponding to the PWM signal;
and if the power supply control information is the improved power supply voltage, improving the duty ratio of the PWM signal to obtain a third power supply voltage corresponding to the PWM signal.
3. The power management method according to claim 1 or 2, wherein the electrical parameter values comprise voltage values and/or current values.
4. A power management device, for use in power carrier communications, the device comprising:
the acquisition module is used for acquiring the electrical parameter value of the output end of the wire controller in the multi-split system; the multi-split system comprises a power supply;
the acquisition module is used for detecting whether the use state of the load interface corresponding to the line controller changes; if the use state of the load interface changes, acquiring rated electrical parameters of the load;
the setting module is used for setting a first set value and a second set value according to the rated electrical parameters of the load;
the comparison module is used for comparing the electrical parameter value with a first set value and a second set value respectively to obtain a comparison result;
the generating module is used for generating power supply control information of a power supply corresponding to the wire controller according to the comparison result;
and the control module is used for controlling the power supply voltage input to the wire controller by the power supply according to the power supply control information so as to enable the wire controller to output the electrical parameters matched with the load corresponding to the wire controller.
5. The power management device of claim 4, wherein the power control information comprises a maintenance power supply voltage, a reduction power supply voltage, or an increase power supply voltage;
the control module is specifically configured to:
if the power supply control information is the maintenance power supply voltage, keeping the duty ratio of a Pulse Width Modulation (PWM) signal corresponding to the power supply unchanged to obtain a first power supply voltage corresponding to the PWM signal;
if the power supply control information is the reduced power supply voltage, reducing the duty ratio of the PWM signal to obtain a second power supply voltage corresponding to the PWM signal;
and if the power supply control information is the improved power supply voltage, improving the duty ratio of the PWM signal to obtain a third power supply voltage corresponding to the PWM signal.
6. A multi-split system is characterized by comprising an indoor unit and a wire controller;
the indoor unit comprises a power supply and a first processing chip;
the wire controller comprises an acquisition component and a second processing chip;
the first processing chip is connected with the second processing chip in a power supply carrier communication mode;
the second processing chip is also connected with the power supply in a power supply carrier communication mode;
the first processing chip is also in signal connection with the power supply;
the second processing chip is also in signal connection with the acquisition assembly;
the acquisition assembly is used for acquiring the electrical parameter value of the output end of the line controller;
the second processing chip is used for detecting whether the use state of the load interface corresponding to the line controller changes; if the use state of the load interface changes, acquiring rated electrical parameters of the load; setting a first set value and a second set value according to rated electrical parameters of the load; comparing the electrical parameter values with a first set value and a second set value respectively to obtain comparison results; generating power supply control information of the power supply according to the comparison result;
and the first processing chip is used for controlling the power supply voltage input by the power supply to the wire controller according to the power supply control information so as to enable the wire controller to output an electrical parameter matched with a load corresponding to the wire controller.
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