CN111237964A - Control method, system and device for air conditioner based on power line carrier communication - Google Patents
Control method, system and device for air conditioner based on power line carrier communication Download PDFInfo
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- CN111237964A CN111237964A CN202010031221.0A CN202010031221A CN111237964A CN 111237964 A CN111237964 A CN 111237964A CN 202010031221 A CN202010031221 A CN 202010031221A CN 111237964 A CN111237964 A CN 111237964A
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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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- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06N—COMPUTING ARRANGEMENTS BASED ON SPECIFIC COMPUTATIONAL MODELS
- G06N20/00—Machine learning
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04B—TRANSMISSION
- H04B3/00—Line transmission systems
- H04B3/54—Systems for transmission via power distribution lines
- H04B3/542—Systems for transmission via power distribution lines the information being in digital form
Abstract
The invention discloses a control method, a system and a device for an air conditioner based on power line carrier communication. The existing power line basic equipment can be utilized in the power line carrier communication mode, extra wiring is not needed, extra cables do not need to be directly installed on the interconnected equipment, decoration cost and system cost when the air conditioning system is built are remarkably reduced, and effective communication can be achieved while reliability is guaranteed. Meanwhile, the data of the central air conditioner is analyzed and learned by utilizing a powerful learning algorithm, and the automatic regulation and control of the central air conditioner are optimized by continuously improving the data characteristics.
Description
Technical Field
The invention relates to the technical field of intelligent control, in particular to a control method, a system and a device for an air conditioner based on power line carrier communication.
Background
At present, in the aspect of central air-conditioning communication, the purpose of the central air-conditioning communication is most commonly realized by building a signal wire form. In a system with one central air conditioner for multiple purposes, the wiring of power lines, control lines and signal lines is complex, and in the aspect of early wiring, the wiring requirement is high, and high decoration cost and time cost are consumed. Meanwhile, in the aspect of power data statistics, most of the statistics is finished in a manual mode, intelligence and automation are not achieved, the cost is high, timeliness is low, and therefore power consumption data cannot be monitored in real time and reflected in time, and energy waste is caused.
Disclosure of Invention
In order to solve the above problems, an object of the present invention is to provide a method, a system, and a device for controlling an air conditioner based on power line carrier communication, which implement group control of a central air conditioner by using a power line carrier communication manner, and can greatly reduce the cost of an intelligent communication network, greatly reduce the time required for decoration and reconstruction, and implement effective communication while using the existing power line infrastructure.
The technical scheme adopted by the invention for solving the problems is as follows:
in a first aspect, an embodiment of the present invention provides a method for controlling an air conditioner based on power line carrier communication, including:
acquiring data of the central air conditioner through each sensor;
feeding back data acquired by each sensor to a main control computer by using a power line carrier, dividing a channel into a plurality of orthogonal sub-channels by adopting an orthogonal frequency division multiplexing technology, converting a high-speed data signal into parallel low-speed sub-data streams, and modulating the low-speed sub-data streams onto each orthogonal sub-channel for transmission;
the main control computer classifies the data received from each sensor, processes and analyzes the data and obtains an adjusting signal;
the main control computer stores the received data to the cloud server, and adopts a reinforcement learning algorithm to analyze and learn the data to improve the adjusting signal, and the main control computer feeds back the adjusting signal to the central air conditioner through a power line carrier to realize automatic regulation and control.
Further, the acquiring data of the central air conditioner through each sensor includes: the data of the central air conditioner are obtained through sensors at different positions, and the data comprise the temperature of the central air conditioner, the water yield of a water valve, the air output of a fan and the on-off of a unit.
Further, the feeding back the data collected by each sensor to the main control computer by using the power line carrier, dividing the channel into a plurality of orthogonal sub-channels by using an orthogonal frequency division multiplexing technology, converting the high-speed data signal into parallel low-speed sub-data streams, and modulating the low-speed sub-data streams onto each orthogonal sub-channel for transmission includes: the data collected by each sensor is fed back to the main control computer by utilizing power line carriers, the channel is divided into a plurality of orthogonal sub-channels by adopting an orthogonal frequency division multiplexing technology, a high-speed data signal is converted into a parallel low-speed sub-data stream, the parallel low-speed sub-data stream is modulated on each orthogonal sub-channel for transmission, and a fuzzy algorithm is adopted to optimize the signal aiming at channel noise existing in the process of power line carrier transmission.
Further, the main control computer classifies the data received from each sensor, processes and analyzes the data, and obtains an adjustment signal including: the main control computer demodulates and classifies signals fed back by the sensors at different positions, and performs data processing and analysis to obtain adjusting signals for regulating and controlling the central air conditioner.
Further, the main control computer stores the received data to a cloud server, and adopts a reinforcement learning algorithm to analyze and learn the data to improve the adjusting signal, and the main control computer feeds back the adjusting signal to the central air conditioner through a power line carrier to realize automatic regulation and control, including: the main control computer is connected with the cloud server through WiFi, stores the received data information and the adjusting signals to the cloud server, analyzes and learns the data by adopting a reinforcement learning algorithm, and optimizes automatic regulation and control of the central air conditioner through continuous improvement of data characteristics.
In a second aspect, an embodiment of the present invention further provides a control system for an air conditioner based on power line carrier communication, including:
the data acquisition module is used for acquiring data of the central air conditioner through each sensor;
the data transmission module is used for feeding back data acquired by each sensor to the main control computer by using a power line carrier, dividing a channel into a plurality of orthogonal sub-channels by adopting an orthogonal frequency division multiplexing technology, converting a high-speed data signal into parallel low-speed sub-data streams, and modulating the parallel low-speed sub-data streams onto each orthogonal sub-channel for transmission;
the data analysis module is used for classifying the data received from each sensor by the main control computer, processing and analyzing the data and obtaining an adjusting signal;
and the data improvement module is used for storing the received data to the cloud server by the main control computer, analyzing and learning the data by adopting a reinforcement learning algorithm to improve the adjusting signal, and the main control computer feeds back the adjusting signal to the central air conditioner through a power line carrier to realize automatic regulation and control.
In a third aspect, an embodiment of the present invention further provides a control device for an air conditioner based on power line carrier communication, including:
at least one processor; and the number of the first and second groups,
a memory communicatively coupled to the at least one processor; wherein the content of the first and second substances,
the memory stores instructions executable by the at least one processor to enable the at least one processor to perform the method of the first aspect of the invention.
In a fourth aspect, the embodiment of the present invention further provides a computer-readable storage medium, where computer-executable instructions are stored, and the computer-executable instructions are configured to cause a computer to execute the method according to the first aspect of the present invention.
One or more technical schemes provided in the embodiment of the invention have at least the following beneficial effects: according to the control method, the system and the device for the air conditioner based on the power line carrier communication, the central air conditioner is controlled in operation and maintenance in a power line carrier communication mode, so that the central air conditioner is monitored in a remote centralized mode, and the central air conditioner is more intelligent. The existing power line basic equipment can be utilized in the power line carrier communication mode, extra wiring is not needed, extra cables do not need to be directly installed on the interconnected equipment, decoration cost and system cost when the air conditioning system is built are remarkably reduced, and effective communication can be achieved while reliability is guaranteed. Meanwhile, the data of the central air conditioner is analyzed and learned by utilizing a powerful learning algorithm, and the automatic regulation and control of the central air conditioner are optimized by continuously improving the data characteristics.
Drawings
The invention is further illustrated with reference to the following figures and examples.
Fig. 1 is a simplified flowchart of a control method for an air conditioner based on power line carrier communication according to a first embodiment of the present invention;
fig. 2 is a schematic configuration diagram of a control system in an air conditioner based on power line carrier communication according to a second embodiment of the present invention;
fig. 3 is a schematic configuration diagram of a control device for an air conditioner based on power line carrier communication according to a third embodiment of the present invention.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention is described in further detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.
It should be noted that, if not conflicted, the various features of the embodiments of the invention may be combined with each other within the scope of protection of the invention. Additionally, while functional block divisions are performed in apparatus schematics, with logical sequences shown in flowcharts, in some cases, steps shown or described may be performed in sequences other than block divisions in apparatus or flowcharts.
The embodiments of the present invention will be further explained with reference to the drawings.
As shown in fig. 1, a first embodiment of the present invention provides a control method for an air conditioner based on power line carrier communication, including but not limited to the following steps:
s100: acquiring data of the central air conditioner through each sensor;
s200: feeding back data acquired by each sensor to a main control computer by using a power line carrier, dividing a channel into a plurality of orthogonal sub-channels by adopting an orthogonal frequency division multiplexing technology, converting a high-speed data signal into parallel low-speed sub-data streams, and modulating the low-speed sub-data streams onto each orthogonal sub-channel for transmission;
s300: the main control computer classifies the data received from each sensor, processes and analyzes the data and obtains an adjusting signal;
s400: the main control computer stores the received data to the cloud server, and adopts a reinforcement learning algorithm to analyze and learn the data to improve the adjusting signal, and the main control computer feeds back the adjusting signal to the central air conditioner through a power line carrier to realize automatic regulation and control.
In step S100, data of the central air conditioner is obtained through sensors at different positions, where the data includes temperature, humidity, wind speed, power consumption, water outlet amount of a water valve, air outlet amount of a fan, and on/off of a unit.
In step S200, the data collected by each sensor is fed back to the main control computer by using the power line carrier, the channel is divided into a plurality of orthogonal sub-channels by using the orthogonal frequency division multiplexing technology, the high-speed data signal is converted into a parallel low-speed sub-data stream, the parallel low-speed sub-data stream is modulated onto each orthogonal sub-channel for transmission, and a fuzzy algorithm is used to optimize the signal according to the channel noise existing in the transmission process of the power line carrier.
The power line carrier communication technology makes full use of the existing power grid, a modem is added at two ends, 50 Hz alternating current is directly used as a carrier, and then pulses of hundreds of KHZ are used as modulation signals to control and transmit signals. The cost is low, the power cord is available, the dual-purpose one line is available, and the price is low. From a technical and cost perspective, the power line carrier communication technology is more advantageous.
The orthogonal frequency division multiplexing technology is a multi-carrier modulation technology and has the biggest characteristics of high transmission rate and strong resistance to intersymbol interference and channel fading. The orthogonal frequency division multiplexing technology divides a channel into a plurality of orthogonal sub-channels, converts a high-speed data signal into parallel low-speed sub-data streams, and modulates the low-speed sub-data streams to each sub-channel for transmission. The orthogonal signals can be separated by using correlation techniques at the receiving end, which can reduce mutual interference between the sub-channels. The signal bandwidth on each subchannel is less than the associated bandwidth of the channel, and therefore can be viewed as flat fading on each subchannel, so that intersymbol interference can be eliminated. And since the bandwidth of each sub-channel is only a small fraction of the original channel bandwidth, channel equalization becomes relatively easy.
Aiming at a series of channel noises existing in the transmission process of the power line carrier communication, a fuzzy algorithm is adopted to process signals, and the signals subjected to fuzzy processing can be close to the original signals to a high degree, so that the problem of the channel noises in the power line carrier communication technology is solved.
In step S300, the main control computer demodulates and classifies signals fed back from the sensors at different positions, and performs data processing and analysis to obtain an adjustment signal for adjusting and controlling the central air conditioner.
In step S400, the main control computer is connected to the cloud server through WiFi, and stores the received data information and the adjustment signal to the cloud server, and performs analysis and learning on the data by using a reinforcement learning algorithm, and optimizes automatic regulation and control of the central air conditioner by continuously improving data characteristics.
The reinforcement learning is a special machine learning method which takes environment feedback as input and is adaptive to the environment, and the main idea of the reinforcement learning is to interact with the environment and try and error and realize decision optimization by utilizing an evaluative feedback signal. The air conditioning system based on reinforcement learning operates to regard the environment as a 'black box', and the control strategy is continuously improved through the feedback of collected signals, so that the dependence on prior knowledge (such as building thermal inertia, equipment characteristics and the like) is reduced. For the operation condition of a building, outdoor weather conditions, indoor environment conditions and the operation condition of an air conditioning system are generally required to be completely considered, and reinforcement learning can improve a strategy through continuous attempts, so that the control mode reaches an optimal state, and the energy consumption is reduced to the minimum through the strategy.
In practical application, the trend of future air conditioner power utilization of an enterprise or a school can be predicted in real time according to the historical air conditioner power of the enterprise or the school, and the enterprise or the school can calculate the future power utilization budget conveniently; according to the data of the sensor, deep learning is carried out on a large amount of data, so that the use condition of a user is analyzed, and the comfort level of the user is improved; according to the data fed back by the power consumption module, deep learning processing is carried out on the data in different seasons and different time points, so that the control of the air conditioner in different time periods is realized, redundant power consumption is reduced, the service time of the air conditioner is optimally solved, and the energy-saving effect is achieved.
Specifically, the main controller hardware part adopts a main controller STM32f107 chip, an EEPROM module, a standby battery power supply, a clock circuit, a reset circuit, a JTAG circuit, a zero-crossing detection circuit and a part of circuits, and the main controller hardware part is the most basic part of product hardware.
The power line communication function is realized through the power line carrier communication module to communicate with the main control computer, the channel is divided into a plurality of orthogonal sub-channels by adopting an Orthogonal Frequency Division Multiplexing (OFDM) technology, high-speed data signals are converted into parallel low-speed sub-data streams, and the parallel low-speed sub-data streams are modulated to be transmitted on each sub-channel to ensure that the information of the sensor is transmitted to the main control computer efficiently through the power line.
The main control machine demodulates signals fed back by different sensors at different positions, classifies information fed back by different sensors, performs data processing analysis on the obtained information in the main control machine, feeds back adjusting signals to different positions to each module through power lines after the processing is finished, adjusts the temperature of the air conditioner, the water outlet quantity of a water valve and the air outlet quantity of a fan, and the opening and closing of partial units, and achieves the system operation feedback value of parameters of each part, thereby realizing the automatic regulation and control of the air conditioner group control system.
The main control computer is connected with the cloud end through the WiFi module, received information and fed back information are stored in the cloud end every time, and remote monitoring on data is achieved. The data processing is internally provided with a reinforcement learning algorithm, data are analyzed and learned, information fed back by the sensor each time and feedback results after analysis and processing are stored, the stored data are processed by on-line learning of program supervision type learning, the data characteristics are more obvious each time, and feedback analysis strategies each time are improved, so that feedback signals after data processing each time are closer to humanization.
In summary, compared with the prior art, the control method for the air conditioner based on the power line carrier communication has the advantages that: the operation and maintenance control is carried out on the central air conditioner in a power line carrier communication mode, so that the central air conditioner is remotely and centrally monitored, and the central air conditioner is more intelligent. The existing power line basic equipment can be utilized in the power line carrier communication mode, extra wiring is not needed, extra cables do not need to be directly installed on the interconnected equipment, decoration cost and system cost when the air conditioning system is built are remarkably reduced, and effective communication can be achieved while reliability is guaranteed. Meanwhile, the data of the central air conditioner is analyzed and learned by utilizing a powerful learning algorithm, and the automatic regulation and control of the central air conditioner are optimized by continuously improving the data characteristics.
In addition, as shown in fig. 2, a second embodiment of the present invention provides a control system at an air conditioner based on power line carrier communication, including:
the data acquisition module 110 is used for acquiring data of the central air conditioner through each sensor;
the data transmission module 120 is configured to feed back data acquired by each sensor to the main control computer by using a power line carrier, divide a channel into a plurality of orthogonal sub-channels by using an orthogonal frequency division multiplexing technique, convert a high-speed data signal into parallel low-speed sub-data streams, and modulate the parallel low-speed sub-data streams onto each orthogonal sub-channel for transmission;
the data analysis module 130 is used for classifying the data received from each sensor by the main control computer, processing and analyzing the data and obtaining an adjusting signal;
and the data improvement module 140 is used for storing the received data into the cloud server by the main control computer, analyzing and learning the data by adopting a reinforcement learning algorithm to improve the adjusting signal, and feeding back the adjusting signal to the central air conditioner by the main control computer through a power line carrier so as to realize automatic regulation and control.
The control system based on the power line carrier communication in the embodiment is based on the same inventive concept as the control method based on the power line carrier communication in the first embodiment, and therefore, the control system based on the power line carrier communication in the embodiment has the same beneficial effects: the operation and maintenance control is carried out on the central air conditioner in a power line carrier communication mode, so that the central air conditioner is remotely and centrally monitored, and the central air conditioner is more intelligent. The existing power line basic equipment can be utilized in the power line carrier communication mode, extra wiring is not needed, extra cables do not need to be directly installed on the interconnected equipment, decoration cost and system cost when the air conditioning system is built are remarkably reduced, and effective communication can be achieved while reliability is guaranteed. Meanwhile, the data of the central air conditioner is analyzed and learned by utilizing a powerful learning algorithm, and the automatic regulation and control of the central air conditioner are optimized by continuously improving the data characteristics.
As shown in fig. 3, a third embodiment of the present invention also provides a control device for an air conditioner based on power line carrier communication, including:
at least one processor;
and a memory communicatively coupled to the at least one processor;
wherein the memory stores instructions executable by the at least one processor, the instructions being executable by the at least one processor to enable the at least one processor to perform any one of the control methods at an air conditioner based on power line carrier communication as in the first embodiment described above.
The memory, which is a non-transitory computer readable storage medium, may be used to store non-transitory software programs, non-transitory computer executable programs, and modules, such as program instructions/modules corresponding to the virtual image control method in the embodiments of the present invention. The processor executes various functional applications and data processing of the stereo imaging processing device by running the non-transitory software programs, instructions and modules stored in the memory, namely, the control method based on power line carrier communication in the air conditioner is realized.
The memory may include a storage program area and a storage data area, wherein the storage program area may store an operating system, an application program required for at least one function; the storage data area may store data created according to the use of the stereoscopic imaging processing device, and the like. Further, the memory may include high speed random access memory, and may also include non-transitory memory, such as at least one disk storage device, flash memory device, or other non-transitory solid state storage device. In some embodiments, the memory optionally includes memory remotely located from the processor, and the remote memory may be connected to the stereoscopic projection device via a network. Examples of such networks include, but are not limited to, the internet, intranets, local area networks, mobile communication networks, and combinations thereof.
The one or more modules are stored in the memory and, when executed by the one or more processors, perform a method for controlling an air conditioner based on power line carrier communication in any of the above-described method embodiments, such as method steps S100 to S400 in the first embodiment.
The fourth embodiment of the present invention also provides a computer-readable storage medium storing computer-executable instructions, which are executed by one or more control processors, and can cause the one or more processors to execute one of the above method embodiments, such as the method steps S100 to S400 in the first embodiment, in the control method for an air conditioner based on power line carrier communication.
The above-described embodiments of the apparatus are merely illustrative, and the units described as separate parts may or may not be physically separate, may be located in one place, or may be distributed over a plurality of network units. Some or all of the modules may be selected according to actual needs to achieve the purpose of the solution of the present embodiment.
Through the above description of the embodiments, those skilled in the art will clearly understand that each embodiment can be implemented by software plus a general hardware platform, and certainly can also be implemented by hardware. It will be understood by those skilled in the art that all or part of the processes of the methods of the embodiments described above can be implemented by hardware related to instructions of a computer program, which can be stored in a computer readable storage medium, and when executed, can include the processes of the embodiments of the methods described above. The storage medium may be a magnetic disk, an optical disk, a Read-Only Memory (ROM), a Random Access Memory (RAM), or the like.
While the preferred embodiments of the present invention have been described in detail, it will be understood by those skilled in the art that the foregoing and various other changes, omissions and deviations in the form and detail thereof may be made without departing from the scope of this invention.
Claims (8)
1. A control method based on power line carrier communication in an air conditioner is characterized by comprising the following steps:
acquiring data of the central air conditioner through each sensor;
feeding back data acquired by each sensor to a main control computer by using a power line carrier, dividing a channel into a plurality of orthogonal sub-channels by adopting an orthogonal frequency division multiplexing technology, converting a high-speed data signal into parallel low-speed sub-data streams, and modulating the low-speed sub-data streams onto each orthogonal sub-channel for transmission;
the main control computer classifies the data received from each sensor, processes and analyzes the data and obtains an adjusting signal;
the main control computer stores the received data to the cloud server, and adopts a reinforcement learning algorithm to analyze and learn the data to improve the adjusting signal, and the main control computer feeds back the adjusting signal to the central air conditioner through a power line carrier to realize automatic regulation and control.
2. The control method for the air conditioner based on the power line carrier communication as claimed in claim 1, wherein the acquiring data of the central air conditioner through each sensor comprises: the data of the central air conditioner are obtained through sensors at different positions, and the data comprise the temperature of the central air conditioner, the water yield of a water valve, the air output of a fan and the on-off of a unit.
3. The method as claimed in claim 1, wherein the method for controlling an air conditioner based on power line carrier communication includes feeding back data collected by each sensor to a main control computer by using a power line carrier, dividing a channel into a plurality of orthogonal sub-channels by using an orthogonal frequency division multiplexing technique, converting a high-speed data signal into parallel low-speed sub-data streams, and modulating the parallel low-speed sub-data streams onto each orthogonal sub-channel for transmission, where the method includes: the data collected by each sensor is fed back to the main control computer by utilizing power line carriers, the channel is divided into a plurality of orthogonal sub-channels by adopting an orthogonal frequency division multiplexing technology, a high-speed data signal is converted into a parallel low-speed sub-data stream, the parallel low-speed sub-data stream is modulated on each orthogonal sub-channel for transmission, and a fuzzy algorithm is adopted to optimize the signal aiming at channel noise existing in the process of power line carrier transmission.
4. The method as claimed in claim 1, wherein the main control computer classifies data received from each sensor, processes and analyzes the data, and obtains the adjustment signal includes: the main control computer demodulates and classifies signals fed back by the sensors at different positions, and performs data processing and analysis to obtain adjusting signals for regulating and controlling the central air conditioner.
5. The method as claimed in claim 4, wherein the main control computer stores the received data in a cloud server, and performs analysis and learning on the data by using a reinforcement learning algorithm to improve the adjustment signal, and the main control computer feeds back the adjustment signal to the central air conditioner through the power line carrier to realize automatic regulation and control, including: the main control computer is connected with the cloud server through WiFi, stores the received data information and the adjusting signals to the cloud server, analyzes and learns the data by adopting a reinforcement learning algorithm, and optimizes automatic regulation and control of the central air conditioner through continuous improvement of data characteristics.
6. A control system based on power line carrier communication at an air conditioner is characterized by comprising:
the data acquisition module is used for acquiring data of the central air conditioner through each sensor;
the data transmission module is used for feeding back data acquired by each sensor to the main control computer by using a power line carrier, dividing a channel into a plurality of orthogonal sub-channels by adopting an orthogonal frequency division multiplexing technology, converting a high-speed data signal into parallel low-speed sub-data streams, and modulating the parallel low-speed sub-data streams onto each orthogonal sub-channel for transmission;
the data analysis module is used for classifying the data received from each sensor by the main control computer, processing and analyzing the data and obtaining an adjusting signal;
and the data improvement module is used for storing the received data to the cloud server by the main control computer, analyzing and learning the data by adopting a reinforcement learning algorithm to improve the adjusting signal, and the main control computer feeds back the adjusting signal to the central air conditioner through a power line carrier to realize automatic regulation and control.
7. A control device based on power line carrier communication at an air conditioner, comprising: at least one processor; and the number of the first and second groups,
a memory communicatively coupled to the at least one processor; wherein the content of the first and second substances,
the memory stores instructions executable by the at least one processor to enable the at least one processor to perform the method of any one of claims 1-5.
8. A computer-readable storage medium having stored thereon computer-executable instructions for causing a computer to perform the method of any one of claims 1-5.
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