CN111829142A - Air conditioner control device and method and air conditioning system - Google Patents
Air conditioner control device and method and air conditioning system Download PDFInfo
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- CN111829142A CN111829142A CN202010586627.5A CN202010586627A CN111829142A CN 111829142 A CN111829142 A CN 111829142A CN 202010586627 A CN202010586627 A CN 202010586627A CN 111829142 A CN111829142 A CN 111829142A
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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
- F24F11/50—Control or safety arrangements characterised by user interfaces or communication
- F24F11/56—Remote control
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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
- F24F11/63—Electronic processing
- F24F11/64—Electronic processing using pre-stored data
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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
- F24F2110/00—Control inputs relating to air properties
- F24F2110/10—Temperature
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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
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02B—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
- Y02B30/00—Energy efficient heating, ventilation or air conditioning [HVAC]
- Y02B30/70—Efficient control or regulation technologies, e.g. for control of refrigerant flow, motor or heating
Abstract
The application relates to an air conditioner control device, an air conditioner control method and an air conditioner system. The first processing control module is connected with the temperature detection module and the AC-DC converter in a signal mode, and is used for generating a low-frequency triangular wave signal according to the environment temperature information and preset temperature information, modulating the low-frequency triangular wave signal and the DC signal to obtain a target DC signal, and outputting the target DC signal through the AC-DC converter. The second processing control module is connected with the alternating current-direct current converter through a power transmission line and controls the air conditioner according to the target direct current signal. The application provides air conditioner controlling means is comparatively stable through transmission line transmission to the information of air conditioner control, has improved the reliability to air conditioner control.
Description
Technical Field
The application relates to the technical field of air conditioner control, in particular to an air conditioner control device, an air conditioner control method and an air conditioner system.
Background
With the development of society, the use of air conditioners is more and more extensive. The existing air conditioning engineering is to intelligently control the air conditioner, so that the temperature, the humidity, the pressure, the air flow speed, the freshness and the cleanliness of air can meet the comfort requirements of people.
In the conventional technology, a communication network is usually adopted to transmit control signals to realize intelligent control of the air conditioner, wherein the signal communication network may be the internet or an independent private network. However, the communication network is susceptible to environmental factors and the like, so that signal transmission for realizing control of the air conditioner is unstable.
Disclosure of Invention
In view of the above, it is necessary to provide an air conditioning control apparatus, system and method.
In one aspect, an embodiment of the present application provides an air conditioner control device, including:
the temperature detection module is used for detecting environmental temperature information;
the AC-DC converter is used for converting an AC signal into a DC signal;
the first processing control module is in signal connection with the temperature detection module and the AC-DC converter and is used for generating a low-frequency triangular wave signal according to the environment temperature information and preset temperature information, modulating the low-frequency triangular wave signal and the DC signal to obtain a target DC signal and outputting the target DC signal through the AC-DC converter;
and the second processing control module is connected with the alternating current-direct current converter through a power transmission line and controls the air conditioner according to the target direct current signal.
In one embodiment, the first process control module comprises:
the first control assembly is in signal connection with the temperature detection module and the alternating current-direct current converter and is used for obtaining a control signal according to the environment temperature information and the preset temperature information;
the first signal processing assembly is in signal connection with the first control assembly and is used for discretizing the control signal to obtain a digital signal and generating the low-frequency triangular wave signal according to the digital signal;
the first control assembly is further used for modulating the low-frequency triangular wave signal and the direct current signal to obtain a target direct current signal, and outputting the target direct current signal through the alternating current-direct current converter.
In one embodiment, the second process control module comprises:
the second signal processing assembly is connected with the alternating current-direct current converter through a power transmission line and used for demodulating the target direct current signal to obtain a low-frequency triangular wave signal and determining an air conditioner adjusting signal according to the low-frequency triangular wave signal;
and the second control assembly is in signal connection with the second signal processing assembly and is used for controlling the air conditioner according to the air conditioner adjusting signal.
In one embodiment, the second signal processing component is specifically configured to obtain a period of the low-frequency triangular wave signal according to the low-frequency triangular wave signal, and determine the air-conditioning adjustment signal according to the period of the low-frequency triangular wave.
In another aspect, an embodiment of the present application provides an air conditioning system including the air conditioning control device and the air conditioner as described above.
In one embodiment, the number of the second process control modules and the number of the air conditioners are both multiple, and the multiple air conditioners correspond to the multiple second process control modules one to one.
In another aspect, an embodiment of the present application further provides a method for controlling an air conditioner by using the air conditioner control device, including:
detecting environmental temperature information by using the temperature detection module;
converting an alternating current signal into a direct current signal by using the alternating current-direct current converter;
the first processing control module generates a low-frequency triangular wave signal according to the environment temperature information and preset temperature information, modulates the direct current signal and the low-frequency triangular wave signal to obtain a target direct current signal, and outputs the target direct current signal through the alternating current-direct current converter;
the second processing control module controls the air conditioner according to the target direct current signal.
In one embodiment, the second process control module includes a second control component and a second signal processing component, the second control component is in signal connection with the second signal processing component, and the second process control module controls the air conditioner according to the target dc signal, including:
demodulating the target direct current signal through the second signal processing assembly to obtain a low-frequency triangular wave signal, and determining an air conditioner adjusting signal according to the low-frequency triangular wave signal;
and the second control assembly controls the air conditioner according to the air conditioner adjusting signal.
In one embodiment, the second signal processing component determines an air conditioning adjustment signal according to the low frequency triangular wave signal, including:
the second signal processing component acquires the period of the low-frequency triangular wave signal according to the low-frequency triangular wave signal;
and the second signal processing component determines the air conditioner adjusting signal according to the period of the low-frequency triangular wave signal.
In one embodiment, the first process control module includes a first control component and a first signal processing component, the first control component is in signal connection with the first signal processing component, and the first process control module generates a low-frequency triangular wave signal according to the ambient temperature information and the preset temperature information, and includes:
the first control assembly generates a control signal according to the environment temperature information and the preset temperature information;
the first signal processing assembly carries out discretization processing on the control signal to obtain a digital signal;
the first control component generates a low-frequency triangular wave signal according to the digital signal.
The embodiment of the application provides an air conditioner control device and method and an air conditioner system. The air conditioner control device comprises a temperature detection module, an alternating current-direct current converter, a first processing control module and a second processing control module. The first processing control module group is connected with the temperature detection module and the AC-DC converter through signals, and is used for generating a low-frequency triangular wave signal according to the environment temperature signal and preset temperature information, modulating the low-frequency triangular wave signal and the DC signal to obtain a target DC signal, and inputting the target DC signal into the AC-DC converter through the first processing control module group, so that the AC-DC converter outputs the target DC signal. And the second processing control module is in signal connection with the alternating current-direct current converter. In the air conditioner control device that this application embodiment provided first processing control module group passes through the target DC signal that obtains will be handled AC/DC converter output, second processing control module group basis target DC signal can control the air conditioner. The signal for controlling the air conditioner takes the direct current signal as a carrier, is transmitted through the power transmission line, the transmission process is not easily affected by environmental factors, the transmission is stable, and the reliability of the air conditioner control device can be improved.
Drawings
In order to more clearly illustrate the technical solutions in the embodiments or the conventional technologies of the present application, the drawings used in the description of the embodiments or the conventional technologies will be briefly introduced below, it is obvious that the drawings in the following description are only some embodiments of the present application, and for those skilled in the art, other drawings can be obtained according to these drawings without creative efforts.
Fig. 1 is a schematic structural diagram of an air conditioning control device according to an embodiment of the present application;
fig. 2 is a schematic structural diagram of an air conditioning control device according to an embodiment of the present application;
FIG. 3 is a schematic diagram of a low frequency triangular wave signal provided by an embodiment of the present application;
fig. 4 is a schematic structural diagram of an air conditioning system according to an embodiment of the present application;
fig. 5 is a schematic flowchart illustrating steps of an air conditioner control method according to an embodiment of the present application;
fig. 6 is a schematic flowchart illustrating steps of an air conditioner control method according to an embodiment of the present application;
fig. 7 is a schematic flowchart illustrating steps of an air conditioner control method according to an embodiment of the present application.
Description of reference numerals:
10. an air conditioning control device;
20. an air conditioner;
30. an air conditioning system;
100. a temperature detection module;
200. an AC-DC converter;
300. a first process control module;
310. a first control assembly;
320. a first signal processing component;
400. a second process control module;
410. a second signal processing component;
420. a second control assembly.
Detailed Description
In order to make the aforementioned objects, features and advantages of the present application more comprehensible, embodiments accompanying the present application are described in detail below with reference to the accompanying drawings. In the following description, numerous specific details are set forth in order to provide a thorough understanding of the present application. This application is capable of embodiments in many different forms than those described herein and that modifications may be made by one skilled in the art without departing from the spirit and scope of the application and it is therefore not intended to be limited to the specific embodiments disclosed below.
The numbering of the components as such, e.g., "first", "second", etc., is used herein only to distinguish the objects as described, and does not have any sequential or technical meaning. The term "connected" and "coupled" when used in this application, unless otherwise indicated, includes both direct and indirect connections (couplings). In the description of the present application, it is to be understood that the terms "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", and the like, indicate orientations or positional relationships based on those shown in the drawings, and are used only for convenience in describing the present application and for simplicity in description, and do not indicate or imply that the devices or elements referred to must have a particular orientation, be constructed in a particular orientation, and be operated, and thus, are not to be considered as limiting the present application.
In this application, unless expressly stated or limited otherwise, the first feature "on" or "under" the second feature may be directly contacting the first and second features or indirectly contacting the first and second features through intervening media. Also, a first feature "on," "over," and "above" a second feature may be directly or diagonally above the second feature, or may simply indicate that the first feature is at a higher level than the second feature. A first feature being "under," "below," and "beneath" a second feature may be directly under or obliquely under the first feature, or may simply mean that the first feature is at a lesser elevation than the second feature.
The following describes the technical solutions of the present application and how to solve the above technical problems with specific examples. The following several specific embodiments may be combined with each other, and details of the same or similar concepts or processes may not be repeated in some embodiments. Embodiments of the present application will be described below with reference to the accompanying drawings.
Referring to fig. 1, an embodiment of the present application provides an air conditioning control device 10, and the air conditioning control device 10 may be used to control air conditioning of an entire building, a certain floor, or a certain office area. The air conditioning control device 10 includes a temperature detection module 100, an ac-dc converter 200, a first process control module 300, and a second process control module 400.
The temperature detection module 100 is used for detecting environmental temperature information. The temperature detection module 100 may be an infrared thermometer, or may be a resistance temperature detector or other devices capable of detecting an ambient temperature. The present embodiment does not limit the type of the temperature detecting module 100, as long as the function thereof can be achieved. The position of the temperature detection module 100 can be set as required to detect the ambient temperature of different positions. For example, if the air conditioner control device 10 needs to control the air conditioner in a certain floor, the temperature detection module 100 may be disposed outside the floor and used for detecting the ambient temperature information outside the floor. The specific setting position of the temperature detection module 100 is not limited in this embodiment, and the user can set the temperature detection module according to actual requirements.
The first process control module 300 is in signal connection with the temperature detection module 100 and the ac-dc converter 200. The first process control module 300 may generate a low frequency triangular wave signal according to the received ambient temperature information and preset temperature information. The preset temperature information is preset according to the temperature required to be adjusted by the air conditioner in the actual environment by a user. For example: generally, when the air conditioner is actually used, the air conditioner is adjusted to 25 ℃, and the preset temperature information is set to 25 ℃.
The first process control module 300 generates the low-frequency triangular wave signal according to the ambient temperature information and the preset temperature information. The generation principle of the triangular wave signal is as follows: if the constant current source is used for charging the capacitor, the ramp wave with positive slope can be generated, and the constant current source is used for discharging the charges stored above the capacitor, so that the ramp wave with negative slope can be generated. If the absolute values of the slopes of the ramp wave with the positive slope and the ramp wave with the negative slope are equal, a symmetrical triangular wave signal is generated. A low frequency triangular wave signal generating component may be included in the first process control module 300 to generate the low frequency triangular wave signal. In a specific embodiment, the low-frequency triangular wave signal component may be a low-frequency triangular wave signal generating circuit, or may be a D/a conversion chip, or the like. The present embodiment does not set any limit to the method for specifically generating the low-frequency triangular wave signal and the required components.
Modulation is the process by which certain characteristics of a message carrier are transformed with a message, and modulation serves to place the message into the message carrier for transmission or processing. The first processing control module 300 modulates the low-frequency triangular wave signal and the direct current signal, a message carrier is the direct current signal, and the characteristics of the direct current signal, such as amplitude and period, change along with the change of the low-frequency triangular wave signal. The size and the direction of the alternating current can be changed periodically, the direction of the direct current cannot be changed, the alternating current-direct current converter 200 is used for converting the alternating current signal into the direct current signal, and the direct current signal is used as a message carrier, so that message transmission is more stable. The voltage value of the direct current signal ranges from 300V to 375V, and in a specific embodiment, the optimal value of the voltage value of the direct current signal is 375V. The first processing control module 300 puts the low-frequency triangular wave signal into the dc signal through modulation to obtain the target dc signal, inputs the target dc signal into the ac-dc converter 200, and transmits the target dc signal through the power transmission line connected to the ac-dc converter 200. The first process control module 300 may be, but is not limited to, a control chip, a personal computer, a notebook computer, a smart phone, a tablet computer, a portable wearable device, and the like.
In a specific embodiment, the temperature detection module 100, the ac-dc converter 200 and the first process control module 300 may be disposed at the same position, and the temperature detection module 100, the ac-dc converter 200 and the first process control module 300 are packaged together by using a housing, so as to facilitate maintenance and transmission of signals between the modules.
The second processing control module 400 is connected to the ac-dc converter 200 through a power transmission line, and the second processing control module 400 may receive the target dc signal through the power transmission line and control the air conditioner 20 according to the target dc signal. The power transmission line comprises two direct current buses, one direct current bus is a positive electrode of the direct current bus, and the other direct current bus is a negative electrode of the direct current bus. In a specific embodiment, the second process control module 400 may control an inverter of the air conditioner 20 according to the target dc signal to control a rotation speed of a compressor of the air conditioner 20, so as to control a temperature of the air conditioner 20. The second process control module 400 may be, but is not limited to, a control chip, a personal computer, a notebook computer, a smart phone, a tablet computer, a portable wearable device, and the like.
The working principle of the air conditioner control device 10 provided by the embodiment of the application is as follows:
using the temperature detection module 100 to detect the ambient temperature information, the first processing control module 300 generates the low-frequency triangular wave signal according to the ambient temperature information and the preset temperature information. The ac-dc converter 200 may convert an ac signal of the commercial power into a dc signal. The first processing control module 300 modulates the low-frequency triangular wave signal and the dc signal to obtain the target dc signal, and outputs the target dc signal from the ac-dc converter 200. The second processing control module 400 receives the target dc signal through the power transmission line, and controls the air conditioner 20 according to the target dc signal.
The embodiment of the application provides an air conditioner control device and method and an air conditioner system. The air conditioning control device 10 includes a temperature detection module 100, an ac-dc converter 200, a first process control module 300, and a second process control module 400. First processing control module group 300 with temperature detection module group 100 with alternating current-direct current converter 200 signal connection for according to ambient temperature signal and preset temperature information produce the low frequency triangular wave signal, and right the low frequency triangular wave signal with direct current signal modulates, obtains the target direct current signal, first processing control module group 300 will the target direct current signal is followed alternating current-direct current converter 200 is exported. The second processing control module 400 is connected to the ac-dc converter 200 through a power transmission line. In the air conditioner control device 10 provided in the embodiment of the present application, the first processing control module 300 outputs a target dc signal obtained by processing through the ac-dc converter 200, and the second processing control module 400 can control the air conditioner 20 according to the target dc signal. The control signal of the control signal is transmitted by the power transmission line by taking the direct current signal as a carrier, the transmission process is not easily influenced by environmental factors, the transmission is stable, the reliability of the air conditioner control device 10 can be improved, and the air conditioner 20 can be accurately controlled.
Referring to fig. 2, in one embodiment, the first process control module 300 includes a first control module 310 and a first signal processing module 320. The first control component 310 is in signal connection with the temperature detection module 100 and the ac-dc converter 200. The first control component 310 processes the received environment temperature information and the preset temperature information, and outputs a control signal, where the control signal is an analog signal. The control signal includes information that requires specific control of the air conditioner 20. Specifically, the first control component 310 outputs a control signal according to a difference between the ambient temperature information and the preset temperature information. In a specific embodiment, the control signal is a sine wave signal, and the amplitude of the sine wave is information for specifically controlling the air conditioner 20. The amplitude of the sine wave signal is related to the difference between the ambient temperature information and the preset temperature information, and the larger the difference is, the larger the amplitude of the sine wave is.
The first signal processing component 320 is in signal connection with the first control component 310. The first signal processing component 320 can perform discretization processing on the control signal, wherein the control signal is an analog signal, and the discretization processing of the control signal is to convert the analog signal into a digital signal. The specific conversion process is as follows: sampling, quantizing and encoding, wherein sampling is to extract samples of the analog signal at equal intervals, quantizing is to transform the extracted samples to the closest digital value representing the size of the extracted sample, and encoding is to represent the quantized digital value by a set of binary numbers. After obtaining the digital signal, the first signal processing component 320 generates the low-frequency triangular wave signal according to the digital signal. The period of the low-frequency triangular wave signal corresponds to the digital signal. The first control component 310 modulates the low-frequency triangular wave signal and the direct current signal to obtain a target direct current signal. The target dc signal includes a control signal for the air conditioner 20. The first control component 310 outputs the target dc signal through the ac-dc converter 200.
In a specific embodiment, it is assumed that the air conditioner 20 can be controlled by means of gears, different gears corresponding to different temperatures of said air conditioner 20, for example: gear 1 represents 23 degrees celsius, gear 2 represents 24 degrees celsius, and gear 3 represents 25 degrees celsius. If the digital signal obtained by discretizing the control signal is 3, the signal period of the generated low-frequency triangular wave is 30 s.
With continued reference to fig. 2, in one embodiment, the second process control module 400 includes a second signal processing component 410 and a second control component 420.
The second signal processing component 410 is connected to the ac-dc converter 200 through a power transmission line. The second control component 420 is in signal connection with the second signal processing component 410. Demodulation is the inverse of modulation and is the process of recovering a message from a modulated signal carrying information. The target direct current signal is obtained by modulation, the target direct current signal represents a modulated signal, and the low-frequency triangular wave signal represents a recovered message. The low-frequency triangular wave signal can be obtained by demodulating the target dc signal through the second signal processing component 410. The low frequency triangular wave signal includes information for controlling the air conditioner 20, and thus an air conditioner adjustment signal can be determined according to the low frequency triangular wave signal. The second control component 420 may perform corresponding adjustment on the air conditioner 20 according to the received air conditioner adjustment signal. The present embodiment does not limit the kind, structure, etc. of the second signal processing component 410 and the second control component 420 as long as the functions thereof can be realized.
In one embodiment, the second signal processing component 410 performs correlation calculation after receiving the low frequency triangular wave signal to obtain the period of the low frequency triangular wave signal. The signal of the low frequency triangular wave corresponds to a signal for controlling the air conditioner 20, and the air conditioner adjusting signal can be determined according to the period of the low frequency triangular wave. In a specific embodiment, the low-frequency triangular wave signal is subjected to fourier transform, so as to obtain the frequency of the low-frequency triangular wave signal, and a derivative of the frequency is obtained, so as to obtain the period of the low-frequency triangular wave signal. If the period of the low-frequency triangular wave signal is 30s, the air conditioner adjusting signal, that is, the gear 3 of the air conditioner 20, can be obtained. As shown in fig. 3, Vdc is an amplitude of the triangular wave, Ttri is a period of the triangular wave, Vdcmax is a highest point of the amplitude of the target dc voltage signal, and Vdcmin is a lowest point of the amplitude of the target dc voltage.
Referring to fig. 4, an embodiment of the present application provides an air conditioning system 30, where the air conditioning system 30 includes the air conditioning control device 10 and the air conditioner 20 provided in any of the above embodiments. The air conditioner 20 is connected to the ac-dc converter 200 through a power transmission line. The air conditioning system 30 includes the air conditioning control device 10, and therefore the air conditioning system 30 has all the structures and advantages of the air conditioning control device 10, which are not described in detail herein.
Referring to fig. 4, in one embodiment, the number of the second process control modules 400 and the number of the air conditioners 20 are both multiple, and the number of the air conditioners 20 is the same as the number of the second process control modules 400. The plurality of air conditioners 20 are connected in parallel to a power transmission line connecting the ac-DC converter 200 and the air conditioners 20, and two DC buses are DC + and DC-. The target dc signal is output to the second process control module 400 and the plurality of air conditioners 20 through two dc buses. The plurality of air conditioners 20 correspond to the plurality of second process control modules 400 one to one.
In the present embodiment, each of the air conditioners 20 corresponds to each of the second process control modules 400, so that control of each of the air conditioners 20 is independent. If a certain air conditioner 20 does not need to be controlled, it is only necessary that the second process control module 400 corresponding to the certain air conditioner does not receive the target dc signal, and such an arrangement is very flexible in controlling each air conditioner 20.
Referring to fig. 5, an embodiment of the present application provides a method for controlling an air conditioner by using the air conditioner control device 10 provided in any one of the above embodiments, including:
and S100, detecting the environmental temperature information by using the temperature detection module 100.
And S200, converting the alternating current signal into a direct current signal by using the alternating current-direct current converter 200.
The ambient temperature information is a physical quantity representing the degree of ambient cold and heat. The adjustment of the indoor air conditioner 20 needs to be adjusted according to the ambient temperature information. Usually, the air conditioner 20 is connected to a commercial power of an alternating current, and the alternating current signal can be converted into the direct current signal by the ac-dc converter 200 for subsequent use.
And S300, generating a low-frequency triangular wave signal by the first processing control module 300 according to the environment temperature information and the preset temperature information, modulating the direct current signal and the low-frequency triangular wave signal to obtain a target direct current signal, and outputting the target direct current signal through the alternating current-direct current converter 200.
The first process control module 300 acquires the pre-stored preset temperature information after acquiring the ambient temperature information. A low frequency triangular wave generating circuit may be included in the first process control module 300, and the first process control module 300 controls the low frequency triangular wave generating circuit to operate according to the environmental temperature information and the preset temperature information to generate the required low frequency triangular wave signal. The first processing control module 300 modulates the low-frequency triangular wave signal and the dc signal to obtain the target dc information, and the specific description may refer to the description of the air conditioner control device 10, which is not described herein again. After obtaining the target dc signal, the first processing control module 300 inputs the target dc signal to the ac-dc converter 200, so that the target dc signal is output through the power transmission line connected to the ac-dc converter 200.
S400, the second process control module 400 controls the air conditioner 20 according to the target dc signal.
The second processing control module 400 may receive the target dc signal through a power transmission line, where the target dc signal includes a control signal for the air conditioner 20, and therefore, the second processing control module 400 may perform corresponding control on the air conditioner 20 corresponding to the second processing control module 400 according to the target dc signal.
In this embodiment, for specific descriptions of the temperature detection module 100, the ac-dc converter 200, the first process control module 300, and the second process control module 400, reference may be made to the description of the air conditioner control device 10, and no further description is given here. The second processing control module 400 receives the target dc signal processed by the first processing control module 300 through the power transmission line, and the signal transmission is very stable, so that the air conditioner 20 is controlled more accurately.
Referring to fig. 6, in one embodiment, the second process control module 400 includes a second control module 420 and a second signal processing module 410, and the second control module 420 is in signal connection with the second signal processing module 410. Step S400 the second process control module 400 controls the air conditioner 20 according to the target dc signal, including:
and S410, demodulating the target direct current signal through the second signal processing component 410 to obtain the low-frequency triangular wave signal, and determining an air conditioner adjusting signal according to the low-frequency triangular wave signal.
The target dc signal is obtained by modulating the low-frequency triangular wave signal and the dc signal, and the second signal processing component 410 demodulates the target dc signal, so as to demodulate the low-frequency triangular wave signal. If the low-frequency triangular wave signal includes control information for the air conditioner 20, the air conditioner adjustment signal can be determined according to the low-frequency triangular wave signal.
In one embodiment, the second signal processing component 410 determining the air conditioning signal from the low frequency triangle wave signal comprises:
s411, the second signal processing component 410 obtains a period of the low-frequency triangular wave signal according to the low-frequency triangular wave signal.
S412, the second signal processing component 410 determines the air conditioning signal according to the period of the low frequency triangular wave signal.
The second signal processing component 410 obtains the period of the low-frequency triangular wave signal according to the low-frequency triangular wave signal, where the period of the low-frequency triangular wave signal corresponds to control information of the air conditioner 20, and thus the period of the low-frequency triangular wave signal may determine the air conditioner adjusting signal. For a specific method for acquiring the period of the low-frequency triangular wave signal, reference may be made to the description in the air conditioner control device 10, and details are not repeated here.
And S420, controlling the air conditioner 20 by the second control component 420 according to the air conditioner adjusting signal.
The air conditioner adjustment signal refers to a specific control of the air conditioner 20. In a specific embodiment, the temperature of the air conditioner 20 is controlled by controlling the rotation speed of a compressor in the air conditioner 20. The air conditioner adjusting signal may be a specific rotation speed of the compressor, and the second control module 420 adjusts the rotation speed of the compressor according to the adjusting signal, so that the air conditioner 20 can be controlled.
In this embodiment, for specific descriptions of the second signal processing component 410 and the second control component 420, reference may be made to the descriptions in the air conditioner control device 10, and no further description is given here.
Referring to fig. 7, in an embodiment, the first process control module 300 includes a first control module 310 and a first signal processing module 320, the first control module 310 is in signal connection with the first signal processing module 320, and in step S300, the first process control module 300 generates a low-frequency triangular wave signal according to the ambient temperature information and the preset temperature information, including:
s310, the first control component 310 generates a control signal according to the environmental temperature information and the preset temperature information.
The difference between the control signal and the environmental temperature information and the preset temperature information, the first control component 310 calculates the difference between the environmental temperature information and the preset temperature information according to the environmental temperature information and the preset temperature information, and generates the control signal according to the difference.
S320, the first signal processing component 320 discretizes the control signal to obtain a digital signal.
S330, the first control component 310 generates a low frequency triangular wave signal according to the digital signal.
The control signal is an analog signal, and the discretization processing is to convert the control signal into a digital signal. The specific switching process refers to the description of the air conditioning control device 10, and is not described herein again. The first control component 310 generates the low-frequency triangular wave signal according to the digital signal, where the digital signal is the air conditioner adjusting signal for controlling the air conditioner 20, and a period of the low-frequency triangular wave signal corresponds to the digital signal.
In this embodiment, for specific descriptions of the first control component 310 and the first signal processing component 320, reference may be made to the descriptions in the air conditioner control device 10, and no further description is given here.
The technical features of the above embodiments can be arbitrarily combined, and for the sake of brevity, all possible combinations of the technical features in the above embodiments are not described, but should be considered as the scope of the present specification as long as there is no contradiction between the combinations of the technical features.
The above-mentioned embodiments only express several embodiments of the present application, and the description thereof is more specific and detailed, but not construed as limiting the scope of the present application. It should be noted that, for a person skilled in the art, several variations and modifications can be made without departing from the concept of the present application, which falls within the scope of protection of the present application. Therefore, the protection scope of the present patent shall be subject to the appended claims.
Claims (10)
1. An air conditioning control device, characterized by comprising:
the temperature detection module is used for detecting environmental temperature information;
the AC-DC converter is used for converting an AC signal into a DC signal;
the first processing control module is in signal connection with the temperature detection module and the AC-DC converter and is used for generating a low-frequency triangular wave signal according to the environment temperature information and preset temperature information, modulating the low-frequency triangular wave signal and the DC signal to obtain a target DC signal and outputting the target DC signal through the AC-DC converter;
and the second processing control module is connected with the alternating current-direct current converter through a power transmission line and controls the air conditioner according to the target direct current signal.
2. The air conditioning control apparatus according to claim 1, wherein the first process control module includes:
the first control assembly is in signal connection with the temperature detection module and the alternating current-direct current converter and is used for obtaining a control signal according to the environment temperature information and the preset temperature information;
the first signal processing assembly is in signal connection with the first control assembly and is used for discretizing the control signal to obtain a digital signal and generating the low-frequency triangular wave signal according to the digital signal;
the first control assembly is further used for modulating the low-frequency triangular wave signal and the direct current signal to obtain a target direct current signal, and outputting the target direct current signal through the alternating current-direct current converter.
3. The air conditioning control apparatus according to claim 1, wherein the second process control module includes:
the second signal processing assembly is connected with the alternating current-direct current converter through a power transmission line and used for demodulating the target direct current signal to obtain a low-frequency triangular wave signal and determining an air conditioner adjusting signal according to the low-frequency triangular wave signal;
and the second control assembly is in signal connection with the second signal processing assembly and is used for controlling the air conditioner according to the air conditioner adjusting signal.
4. The air conditioning control device according to claim 3, wherein the second signal processing component is specifically configured to obtain a period of the low-frequency triangular wave signal according to the low-frequency triangular wave signal, and determine the air conditioning adjustment signal according to the period of the low-frequency triangular wave.
5. An air conditioning system characterized by comprising the air conditioning control device and the air conditioner according to any one of claims 1 to 4.
6. The air conditioning system according to claim 5, wherein the number of the second process control modules and the number of the air conditioners are plural, and the plural air conditioners correspond to the plural second process control modules one to one.
7. A method for controlling an air conditioner by using the air conditioner control device according to any one of claims 1 to 4, comprising:
detecting environmental temperature information by using the temperature detection module;
converting an alternating current signal into a direct current signal by using the alternating current-direct current converter;
the first processing control module generates a low-frequency triangular wave signal according to the environment temperature information and preset temperature information, modulates the direct current signal and the low-frequency triangular wave signal to obtain a target direct current signal, and outputs the target direct current signal through the alternating current-direct current converter;
the second processing control module controls the air conditioner according to the target direct current signal.
8. The method of claim 7, wherein the second process control module comprises a second control component and a second signal processing component, the second control component being in signal connection with the second signal processing component, the second process control module controlling the air conditioner according to the target DC electrical signal, comprising:
demodulating the target direct current signal through the second signal processing assembly to obtain a low-frequency triangular wave signal, and determining an air conditioner adjusting signal according to the low-frequency triangular wave signal;
and the second control assembly controls the air conditioner according to the air conditioner adjusting signal.
9. The method of claim 8, wherein the second signal processing component determines an air conditioning adjustment signal from the low frequency triangular wave signal, comprising:
the second signal processing component acquires the period of the low-frequency triangular wave signal according to the low-frequency triangular wave signal;
and the second signal processing component determines the air conditioner adjusting signal according to the period of the low-frequency triangular wave signal.
10. The method of claim 7, wherein the first process control module comprises a first control component and a first signal processing component, the first control component being in signal connection with the first signal processing component, the first process control module generating a low frequency triangular wave signal according to the ambient temperature information and the preset temperature information, comprising:
the first control assembly generates a control signal according to the environment temperature information and the preset temperature information;
the first signal processing assembly carries out discretization processing on the control signal to obtain a digital signal;
the first control component generates a low-frequency triangular wave signal according to the digital signal.
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