CN110030674A - A kind of wisdom classroom air-conditioner control system and control method - Google Patents
A kind of wisdom classroom air-conditioner control system and control method Download PDFInfo
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- 238000000034 method Methods 0.000 title claims abstract description 27
- 238000004378 air conditioning Methods 0.000 claims abstract description 37
- 238000011217 control strategy Methods 0.000 claims abstract description 24
- 230000007613 environmental effect Effects 0.000 claims abstract description 23
- 238000005516 engineering process Methods 0.000 claims abstract description 13
- 238000010438 heat treatment Methods 0.000 claims description 6
- 230000003993 interaction Effects 0.000 claims description 4
- 238000007791 dehumidification Methods 0.000 claims description 3
- 238000001816 cooling Methods 0.000 claims description 2
- 230000000694 effects Effects 0.000 abstract description 13
- 238000007726 management method Methods 0.000 abstract description 6
- 238000004458 analytical method Methods 0.000 abstract description 3
- 230000003750 conditioning effect Effects 0.000 abstract 1
- 230000008094 contradictory effect Effects 0.000 abstract 1
- 230000006870 function Effects 0.000 description 17
- 238000004891 communication Methods 0.000 description 7
- 238000010586 diagram Methods 0.000 description 7
- 238000004134 energy conservation Methods 0.000 description 7
- 230000009467 reduction Effects 0.000 description 5
- 238000005265 energy consumption Methods 0.000 description 4
- 230000003044 adaptive effect Effects 0.000 description 3
- 239000002699 waste material Substances 0.000 description 3
- 238000011161 development Methods 0.000 description 2
- 238000012544 monitoring process Methods 0.000 description 2
- 238000005057 refrigeration Methods 0.000 description 2
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- 230000002457 bidirectional effect Effects 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 239000012141 concentrate Substances 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 230000009977 dual effect Effects 0.000 description 1
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- 230000004048 modification Effects 0.000 description 1
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- 230000003068 static effect Effects 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F11/00—Control or safety arrangements
- F24F11/30—Control or safety arrangements for purposes related to the operation of the system, e.g. for safety or monitoring
- F24F11/46—Improving electric energy efficiency or saving
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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
- F24F11/54—Control or safety arrangements characterised by user interfaces or communication using one central controller connected to several sub-controllers
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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
- F24F11/58—Remote control using Internet communication
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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
- F24F11/65—Electronic processing for selecting an operating mode
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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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- 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
- F24F2110/12—Temperature of the outside air
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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
- F24F2110/20—Humidity
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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
- F24F2110/20—Humidity
- F24F2110/22—Humidity of the outside air
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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
- F24F2120/00—Control inputs relating to users or occupants
- F24F2120/10—Occupancy
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- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
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- Human Computer Interaction (AREA)
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- Fuzzy Systems (AREA)
- Mathematical Physics (AREA)
- Air Conditioning Control Device (AREA)
Abstract
The present invention provides a kind of wisdom classroom air-conditioner control system and control method, to solve the problems, such as that power consumption is big under wisdom classroom airconditioning control is not smart enough in the prior art and unordered management status.The control system receives the information of people counting device and environment information acquisition device by intelligent terminal, airconditioning control decision is made according to the received information of institute and preset air conditioner control strategy, and the airconditioning control decision is sent to air-conditioner controller, to control religion room conditioning.The present invention realizes demographics function using the image recognition technology based on classroom camera, improve the identification accuracy of number and position distribution, in classroom personal information and air conditioner control strategy is differentiated using intelligent analysis terminal on the basis of environmental information, solve classroom review one's lessons, classroom instruction demand and it is energy-saving between contradictory problems, achieve the effect that energy-saving；Economic cost is low, and replicability is strong.
Description
Technical Field
The invention belongs to the field of intelligent energy conservation, and particularly relates to an intelligent classroom air conditioner control system and a control method.
Background
Along with the development of social economy, the comfort level requirements of students and teachers in the aspect of life and study are more and more emphasized in the current schools. With the continuous rise of climate change and summer temperature, in order to meet the learning environment requirements of teachers and students in summer, a large number of schools begin to install air conditioners in classrooms and dormitories at present all over the country, and meanwhile, a large number of schools are planning the installation of facilities such as air conditioners and the like, so that the campus power load is greatly increased, and great pressure is caused on the operation of a campus power grid. Besides the increase of load inevitably caused by the access of the air conditioner, the lack of effective control of the air conditioner in the classroom is one of the main reasons, which causes a large amount of unnecessary electric energy consumption and does not meet the requirements of energy conservation and emission reduction of modern intelligent classrooms.
At present, schools begin to realize the unreasonable energy consumption problem of air conditioners as the air conditioners in the classroom are still in the extensive management stage from the national scale, but the opening, closing and adjustment of the air conditioners in the classroom still depend on manual adjustment at present, and the control mode is rigid and extensive. Air conditioners in different schools are mainly controlled by adopting a mode of uniform purchasing system air conditioners and an infrared remote controller, and most of the air conditioners are managed by building managers in actual operation. In order to prevent students in classrooms from manually controlling the air conditioner, part of the air conditioner is controlled by only depending on the infrared remote controller, the control method is too single, meanwhile, along with the development of the smart phone, the students can flexibly control the air conditioner through the infrared remote controller of the mobile phone and bypass the management of schools, the air conditioner is controlled randomly, the management confusion is caused, and the great influence is caused on the consumption of electric energy and the actual comfort level of the students. Simultaneously, compare middle and primary school's classroom, university's campus has the lower problem of classroom resource utilization, student's number is less in the non-classroom time classroom, but classroom air conditioner management is extensive at present, the temperature setting is random, do not consider the actual conditions, the control of pure manual unordered causes unnecessary air conditioner to open and the lower condition of temperature setting often takes place, it leads to a large amount of electric energy resource waste and the improper phenomenon ubiquitous that causes student's body to feel the temperature uncomfortable easily to open the air conditioner in a large number for few classmates in the classroom simultaneously.
With the introduction of modern devices such as air conditioners, the concept of smart classrooms is becoming the mainstream of the current classroom construction, and an intelligent control mode is also presented for the management of the air conditioners. In the prior art, the main technical difficulty of the intelligent control technology of the classroom air conditioner is the identification of the number of people in the classroom, the control mode of the air conditioner and the specific control strategy, wherein the main technical difficulty is that the number of people in the classroom and the temperature and humidity information are used for setting the classroom air conditioner.
Chinese patent publication No. CN207395111U discloses an intelligent control system for air conditioners in colleges and universities based on the internet of things, and fig. 1 is a schematic structural diagram of the intelligent control system for air conditioners in colleges and universities based on the internet of things. As shown in fig. 1, the system includes a wireless sensor network composed of a temperature acquisition node and a personnel access counting node, the wireless sensor network is connected with a server, the server is connected with an air conditioner state controller, the air conditioner state controller is respectively connected with an air conditioner and a display, and the intelligent control mode of the air conditioner is as follows: the system comprises a temperature acquisition node, a staff in-out node, a server, an air conditioner state controller, a monitor, a network communication unit and a monitoring computer, wherein the temperature acquisition node and the staff in-out node form a wireless sensor network, the wireless sensor network is arranged in each classroom and used for monitoring information, the wireless sensor network transmits acquired data to the server, the server is connected with the air conditioner state controller, the air conditioner state controller is respectively connected with an air conditioner and a display, and the server is connected with the computer through the network communication unit and is in communication connection with the; the data collected by the wireless sensor network is also sent to the air conditioner state controller; the server receives collected temperature data inside and outside a classroom and number data of people in the classroom, processes the data and then sends control information to the state controller, and simultaneously sends display information to the state controller, wherein the control information comprises whether personnel information reaches a threshold value and whether the temperature is within an air conditioner starting range, and the display information comprises classroom personnel and inside and outside temperature information displayed on the display; the air conditioner state controller judges the received control signal, when the number of people is larger than a set threshold value and the temperature is within a range allowing the air conditioner to be started, the air conditioner state controller sends a control signal to the air conditioner to control the air conditioner to be started, and if any condition is monitored to be not met, the air conditioner state controller judges the air conditioner to be closed according to data so as to control the air conditioner to be closed; the air conditioner state controller is used for controlling the opening of the air conditioner, and displaying the data received from the server and the working state of the air conditioner by the displayer. However, in the above scheme, the number of people in the classroom is detected by adopting a method of additionally installing a pressure sensor at the doorway of the classroom, and the method for detecting the number of people has low accuracy and high failure rate when more people get in and out of the classroom, cannot identify the distribution of the people in the classroom, can only control all air conditioners in the whole classroom roughly, and cannot achieve the effect of effective energy conservation.
Chinese patent publication No. CN206207674U discloses an intelligent control device for air conditioners in classrooms, which controls air conditioners by controlling air conditioner motors and air cylinders, and this technique requires modification of air conditioners, and the air conditioners of different models have different structures, and the air conditioners in schools often adopt different types of air conditioners along with the difference of classroom structures, which is difficult to be practically popularized.
In addition, in the identification of the number of people in a classroom, there are a method of counting the number of people by infrared rays and a method of installing a sensor in a seat. The infrared sensor has no effect basically when identifying static objects, and can only judge whether people exist or not without counting the number of the classroom; the method for installing the sensor on the seat needs to greatly reform a classroom, meanwhile, wireless communication is carried out on the basis of each seat, the requirement on classroom communication is high, damage is easy, maintenance is difficult, economic cost is high, and popularization is difficult. People counting technology in the classroom is still relatively lagged behind.
And for the specific control strategy of the air conditioner, a perfect standard is not formed, a unified standard is lacked for the target to be achieved by control, and the particularity of a classroom as a class and a study place is not combined, so that related patent achievements are not generated at present. Meanwhile, due to the teaching requirement, a manual control function must be assisted in a classroom besides intelligent control, and no solution for turning on a large number of air conditioners for individual people is involved.
Disclosure of Invention
In order to improve the energy utilization efficiency of a smart classroom and overcome the problem of air conditioner control in the smart classroom, the invention provides an air conditioner control method based on the smart classroom, the energy-saving effect and the personnel comfort level are comprehensively considered, the existing air conditioner is not required to be modified, the number of people in the classroom and the distribution condition are analyzed through an intelligent control terminal, the indoor and outdoor temperature and humidity and season information are synthesized, the use attributes of class attendance, self-study and the like of the classroom are synthesized, the use scenes are intelligently divided, the air conditioner starting and stopping and temperature setting are decided, the intelligent control is performed on the air conditioner through the intelligent control terminal, the energy-saving effect is achieved, meanwhile, the current situation of low utilization rate of the self-study classroom is reduced through temperature setting, the integral classroom utilization efficiency and the air.
In order to achieve the purpose, the invention adopts the following technical scheme.
The invention provides an air-conditioning control system for a smart classroom, which comprises: the system comprises a people counting device, an environmental information acquisition device, an intelligent terminal, an air conditioner controller and an air conditioner; wherein,
the people counting device is connected with the intelligent terminal and used for acquiring the number and the distribution information in the classroom and sending the number and the distribution information to the intelligent terminal;
the environment information acquisition device is connected with the intelligent terminal and used for acquiring indoor and outdoor temperature and humidity information and sending temperature and humidity parameters to the intelligent terminal;
the intelligent terminal is connected with the air conditioner controller and used for receiving the information of the people counting device and the environmental information acquisition device, making an air conditioner control decision according to the received information and a preset air conditioner control strategy and sending the air conditioner control decision to the air conditioner controller;
and the air conditioner controller is connected with the air conditioner and is used for receiving the air conditioner control decision of the intelligent terminal and controlling the air conditioner according to the air conditioner control decision.
Furthermore, the people counting device is used for counting the number of people in the classroom and the distribution state of people by utilizing the existing camera equipment in the intelligent classroom and utilizing an image recognition technology based on a real-time image of the classroom to acquire the number of people and the distribution information.
Further, the air conditioning control system further includes: a display terminal;
and the display terminal is connected with the intelligent terminal through the Ethernet and used for displaying real-time information and controlling the air conditioner controller through feedback with the intelligent terminal.
Further, the air conditioning control system further includes: an upper computer;
the upper computer is connected with the intelligent terminal through an Ethernet and used for sending a control instruction for an air conditioner to the intelligent terminal;
the intelligent terminal is further used for pushing classroom real-time environment information and air conditioner control information to the upper computer.
Further, the air conditioning control system further includes: mobile terminal APP, APP with the host computer links to each other, and with the host computer carries out information interaction for set up two kinds of authorities of teacher and student, the teacher authority is including inquiring classroom information and through APP direct control classroom air conditioning system, and the student authority is including inquiring classroom information, does not include control function.
Further, the intelligent terminal is further used for:
the method comprises the steps that operation A, according to the people counting information and the environmental information, a control instruction is generated according to the set control decision according to the classroom use condition and is transmitted to an air conditioner controller through a network;
b, obtaining environmental temperature and humidity information inside and outside the classroom through an environmental information acquisition device, judging the season by combining date information, and deciding an air conditioner application mode;
operation C, linking with school teaching information, and judging the classroom use state;
and D, solving the operation problem of the student smart phone.
Further, the air conditioner application modes comprise cooling, heating and dehumidifying.
Further, the classroom use states include at least class, self-study, examination, and close.
The invention also provides a control method of the intelligent classroom air conditioner, which comprises the following steps:
step S201, acquiring the number of people in a classroom and the distribution information of people through a people counting device, and sending the number of people and the distribution information to an intelligent terminal;
step S202, an environment information acquisition device acquires temperature and humidity information in and out of a classroom and sends temperature and humidity parameters to an intelligent terminal;
step S203, the intelligent terminal receives the number of people and distribution information, and temperature and humidity information in and out of a classroom, makes an air conditioner control decision according to the received information and a preset air conditioner control strategy, and sends the decision to the air conditioner controller;
and step S204, the air conditioner controller receives an air conditioner control decision and controls the air conditioner according to the decision.
Further, the making of the air-conditioning control decision according to the received information and the preset air-conditioning control policy in step S203 includes:
step S203A, linking with school teaching information, judging the classroom use state;
step S203B, acquiring environmental temperature and humidity information inside and outside the classroom through an environmental information acquisition device, judging the season by combining with date information, and deciding the mode of air conditioner application;
step S203C, combining the people counting information and the environment information, self-adaptively judging whether to start the air conditioner according to the classroom use state and the air conditioner application mode; and determining the number of the opened air conditioners according to the number of people and the seat distribution information.
According to the technical scheme, the intelligent classroom air conditioner control method which is practically available and easy to popularize is characterized in that a people counting function is achieved through an image recognition technology based on a classroom camera, the people recognition accuracy is improved, the position distribution can be effectively judged, an air conditioner control strategy is judged through an intelligent analysis terminal on the basis of the personnel information and the temperature and humidity information in a classroom, the problem of contradiction between classroom self-study, classroom teaching requirements and energy conservation and consumption reduction is solved, an actual control instruction considering comfort level and high-efficiency performance is formed, and an air conditioner controller which is based on infrared and can be adapted to all common air conditioning equipment on the market is used for controlling the air conditioner; meanwhile, a display terminal and an upper computer control system are added outside the intelligent control, manual take-over is achieved according to the requirements of actual conditions on the basis of the intelligent control, the reliability of the system is improved, the guidance of students is achieved through the display function and the temperature gradient setting, and the utilization efficiency of classrooms and air conditioners is improved. Through the setting of the air conditioner opening threshold value, the phenomenon that the air conditioner in the classroom is opened due to individual classmates is reduced, students are guided to go to the classroom with more people and low temperature, and the whole classroom utilization rate and the air conditioner utilization rate are improved. The intelligent control method fully combines the functional requirements of a special scene of a classroom from the aspect of a control strategy, intelligently controls the air conditioner on the basis of meeting the requirements of teaching and the like, considers the application scene of the classroom in decision information, and provides an adaptive control method for variables such as a threshold value of startup and shutdown, a statistical result of set temperature/wind speed of the air conditioner along with the number of people, indoor and outdoor temperature difference, temperature difference between set temperature and environment temperature and the like, thereby achieving the effects of saving energy and reducing consumption. Need not to carry out the classroom and reform transform, economic cost angle, can popularize nature by force.
Additional aspects and advantages of the invention will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of the invention.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings needed to be used in the description of the embodiments are briefly introduced below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art to obtain other drawings based on these drawings without creative efforts.
FIG. 1 is a schematic structural diagram of an intelligent control system of an air conditioner in a college classroom based on the Internet of things in the prior art;
FIG. 2 is a schematic diagram of an intelligent classroom air conditioning control system according to an embodiment of the present invention;
fig. 3 is a schematic diagram of an air conditioner control strategy according to an embodiment of the present invention.
Detailed Description
Reference will now be made in detail to embodiments of the present invention, examples of which are illustrated in the accompanying drawings, wherein like reference numerals refer to the same or similar elements or elements having the same or similar function throughout. The embodiments described below with reference to the accompanying drawings are illustrative only for the purpose of explaining the present invention, and are not to be construed as limiting the present invention.
As used herein, the singular forms "a", "an", "the" and "the" are intended to include the plural forms as well, unless the context clearly indicates otherwise. It will be further understood that the terms "comprises" and/or "comprising," when used in this specification, specify the presence of stated features, integers, steps, operations, elements, and/or components, but do not preclude the presence or addition of one or more other features, integers, steps, operations, elements, components, and/or groups thereof. It will be understood that when an element is referred to as being "connected" or "coupled" to another element, it can be directly connected or coupled to the other element or intervening elements may also be present. Further, "connected" or "coupled" as used herein may include wirelessly connected or coupled. As used herein, the term "and/or" includes any and all combinations of one or more of the associated listed items.
It will be understood by those skilled in the art that, unless otherwise defined, all terms (including technical and scientific terms) used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs. It will be further understood that terms, such as those defined in commonly used dictionaries, should be interpreted as having a meaning that is consistent with their meaning in the context of the prior art and will not be interpreted in an idealized or overly formal sense unless expressly so defined herein.
For the convenience of understanding the embodiments of the present invention, the following description will be further explained by taking several specific embodiments as examples in conjunction with the drawings, and the embodiments are not to be construed as limiting the embodiments of the present invention.
First embodiment
The embodiment provides a smart classroom air conditioning control system. Fig. 2 is a schematic structural diagram of the air conditioning control system of the intelligent classroom according to the embodiment. As shown in fig. 2, the intelligent classroom air-conditioning control system includes: the system comprises a people counting device, an environmental information acquisition device, an intelligent terminal, an air conditioner controller and an air conditioner; wherein,
the people counting device is connected with the intelligent terminal and used for acquiring the number of people in the classroom and the personnel distribution information and sending the number of people and the personnel distribution information to the intelligent terminal;
the environment information acquisition device is connected with the intelligent terminal and used for acquiring indoor and outdoor temperature and humidity information and sending temperature and humidity parameters to the intelligent terminal;
the intelligent terminal is connected with the air conditioner controller and used for receiving the information of the people counting device and the environmental information acquisition device, making an air conditioner control decision according to the received information and a preset air conditioner control strategy and sending the decision to the air conditioner controller;
and the air conditioner controller is connected with the air conditioner and is used for receiving an air conditioner control decision of the intelligent terminal and controlling the air conditioner according to the decision.
Further, the air conditioner controller controls the air conditioner by infrared rays.
Furthermore, the people counting device is connected with the intelligent terminal through an Ethernet; the environment information acquisition device is connected with the intelligent terminal through a 485 bus; the intelligent terminal is connected with the air conditioner controller through a 485 bus.
The number counting device in this embodiment can not only detect the number of people in the classroom, but also monitor the distribution state of people. Furthermore, the people counting device in this embodiment utilizes the current camera equipment in the classroom, based on the real-time image in the classroom, utilizes the image recognition technology to count the number of people in the classroom and the distribution state of people, and transmits the number of people and the distribution statistical information to the intelligent terminal through the ethernet. Compared with the prior art, the embodiment utilizes the existing equipment, has low economic cost, simultaneously utilizes the latest computer vision technology, improves the people counting precision, can identify the seat distribution, and provides very good data support for realizing an effective air conditioner control means.
Further, the intelligent classroom air conditioning control system can further comprise: and displaying the terminal. And the display terminal is connected with the intelligent terminal. Furthermore, the display terminal is connected with the intelligent terminal through an Ethernet. And the display terminal is used for displaying real-time information and controlling the air conditioner controller through feedback with the intelligent terminal.
Further, the intelligent classroom air conditioning control system can further comprise: and (4) an upper computer. And the upper computer is connected with the intelligent terminal. Furthermore, the upper computer is connected with the intelligent terminal through an Ethernet. The upper computer is connected with the intelligent terminal through an Ethernet and used for sending a control instruction for an air conditioner to the intelligent terminal; the intelligent terminal is further used for pushing classroom real-time environment information and air conditioner control information to the upper computer.
Further, the air conditioning control system further includes: the mobile terminal APP, APP with the host computer links to each other, and with the host computer carries out the information interaction, uploads including the classroom information and assigns with control command, APP through the ethernet mode realize with the communication of host computer. APP is used for setting up teacher and two kinds of authorities of student, and the teacher authority is including inquiring classroom information and through APP direct control classroom air conditioning system, and the student authority is including inquiring classroom information, does not include control function.
Here, the display terminal can realize manual control through the input module, and the upper computer can realize remote control through the network. Manual control in practical application can be realized based on manual control of the display terminal and remote control based on the upper computer. Here, based on the actual environment of the intelligent classroom, important functions such as classroom temporary examination and the like must be considered, and meanwhile, scenes such as classroom requirements and situations that an intelligent system may not function correctly due to reasons such as network interruption and the like are considered, and a manual take-over function must be added in addition to the intelligent automatic control system. Therefore, the air conditioner control system of the embodiment is additionally provided with the display terminal and the upper computer, the display terminal is in bidirectional connection with the intelligent control terminal, real-time display of information in a classroom is achieved, meanwhile, the system operation can be taken over in a teacher password authorization mode, air conditioner setting parameters are manually adjusted, and the priority level is higher than that of the intelligent control system. Utilize host computer and mobile terminal APP to carry out the information interaction simultaneously, set up the teacher permission in the APP, can realize removing end remote operation air conditioner control system, dual reliability of having guaranteed whole system. Simultaneously, display terminal and mobile terminal APP except that the control function that the teacher authorized, also can play fine guide to the student about, show through green, yellow, red colour and guide the student to concentrate on studying oneself, reduce the phenomenon that the individual person occupies the study classroom, improve whole classroom utilization ratio and air conditioner utilization ratio, realize energy-conserving effect.
The intelligent terminal makes an air conditioner control decision according to the received information and a preset air conditioner control strategy, and considers the basic functions of self-study and class giving in a classroom, which is the key technology in the embodiment. Fig. 3 is a schematic diagram of the air conditioner control strategy. As shown in fig. 3, the intelligent terminal is further configured to:
and operation A, generating a control instruction according to the classroom use state and the set control decision by combining the people counting information and the environmental information, and transmitting the control instruction to the air conditioner controller through the network.
In the embodiment, adaptive air conditioner starting conditions are set according to special function requirements of a classroom. The main purpose is to save energy in classrooms and reduce the phenomenon that a few people turn on the air conditioner as far as possible. According to classroom course arrangement and seat setting and the use condition of classrooms of schools, the air conditioner opening threshold is set to fluctuate between 5% and 10% in a self-adaptive mode, and the air conditioner cannot be opened when the air conditioner opening threshold is lower than the threshold value. When the number of people does not reach the full-open standard, the number of the turned-on air conditioners is intelligently decided according to the distribution of seats in the classroom, and the air conditioners in the front, in the middle and at the back of the classroom are intelligently turned on by considering the actual arrangement number and the position of the air conditioners in the classroom.
Operation B, acquiring environmental temperature and humidity information inside and outside the classroom through an environmental information acquisition device, judging the season by combining date information, and deciding the mode of air conditioner application (the mode comprises refrigeration, heating and dehumidification); and designing the temperature and the wind speed of the air conditioner by combining two dimensions of a first temperature difference value between the indoor temperature and the outdoor temperature and a second temperature difference value between the indoor temperature and the set temperature.
In actual operation, the set temperature of the air conditioner is one degree higher per liter in summer, so that a large amount of electric energy can be saved. In the scheme, after the air conditioner is judged to be started, the set temperature and the set wind speed are continuously controlled. And judging the operation modes of heating, refrigerating, dehumidifying and the like by combining date, season and humidity information. And (4) making a decision on the set temperature of the air conditioner by combining the indoor and outdoor ambient temperatures. Meanwhile, the comfort level of most students in a classroom is considered, the summer target temperature in the classroom is set to be 24-26 ℃ for self-adaptive adjustment according to the summer room temperature standard of public facilities in China, and the set temperature is designed by combining the number of people in the classroom, so that the more the number of people is, the lower the set temperature is. The wind speed is controlled by combining the difference value between the set temperature and the environment temperature, and the wind speed is reduced along with the reduction of the temperature difference, so that the energy-saving effect is exerted.
And operation C, linked with the teaching information of the school, judging the using state of the classroom (the using state of the classroom at least comprises class taking, self-study, examination and closing).
By linking with the school teaching arrangement information, the classroom use states are divided into four scenes, namely examination, class taking, self-study, closing and the like. The temperature information decision mode is implemented on the air conditioner in examination and class scenes, the influence of people number factors on the decision is cut off, and the comfort of class environment is ensured. The self-study mode implements double control of temperature and number of people, guides students to go to the classroom with more number of people and low temperature for self-study, improves the utilization rate of the whole classroom and the utilization rate of an air conditioner, and realizes the effect of energy conservation. The closing mode is that the closing time of the classroom automatically cuts off the power of the air conditioner, thereby saving energy.
And D, solving the operation problem of the student smart phone.
Aiming at the problem of the on-off of the air conditioner, a controllable relay is arranged at the upper stream of an air conditioner power supply, a decision instruction at the beginning of the air conditioner is realized by controlling the relay, the power-off of the air conditioner is realized while the air conditioner is not required to be modified, the problem that students use mobile phones to carry out the on-off operation of the air conditioner is completely solved, meanwhile, the minimum on-off interval time of the air conditioner is set, and the problem of the service life caused by frequent on-off of an air conditioner.
Aiming at the problem of air conditioner temperature setting, an air conditioner controller is designed to send the same control instruction to the air conditioner every 5 seconds to correct random control of students, and stable operation of the air conditioner under the decision temperature condition on a long-time scale is guaranteed.
When the intelligent classroom air conditioner control system is used for air conditioner control of an intelligent classroom, the number of people in the classroom, distribution and temperature and humidity information are obtained by the aid of the number counting device and the environmental information collecting device, then the information is transmitted to the intelligent terminal through the Ethernet and the 485 bus respectively, the intelligent terminal makes and issues a control decision instruction according to the received information and a preset air conditioner control strategy, and a decision is transmitted to the air conditioner controller through the 485 communication network so as to control an air conditioner. Meanwhile, a display terminal is arranged in a classroom to display information such as real-time number of people in the classroom, temperature and air conditioner setting, and manual take-over of classroom air conditioners can be achieved. Besides, the intelligent classroom intelligent control system is also provided with an upper computer system which is communicated with the intelligent terminal, APP software matched with the upper computer is linked with the intelligent classroom air-conditioning control system through the upper computer, and the system is remotely controlled. The mobile terminal APP is developed here, and the purpose is to achieve remote observation and control of classroom information.
According to the technical scheme, the intelligent classroom air-conditioning control system comprehensively considers the air-conditioning control strategies of classroom environment factors, number information and course arrangement, and intelligently realizes on-off control and temperature/wind speed control of an air conditioner; classroom scenes such as examination, class taking, self-study, closing and the like are divided, and different air conditioner control strategies are designed according to different classroom function requirements; the starting threshold value of the air conditioner is set according to the double conditions of the number of people in the classroom and the temperature, so that the waste phenomenon that a small number of people occupy a large classroom is avoided, meanwhile, the temperature is designed to perform self-adaptive control along with the number of people in the classroom, the comfort level requirement of a large number of people is guaranteed, and the problems of electric energy waste, poor comfort level and the like caused by too low temperature setting of the air conditioner are avoided; the people counting adopts an image recognition technology based on the existing camera device, so that the economic cost is low, the recognition effect is accurate, the seat distribution can be recognized, and accurate data support is provided for air conditioner control decision; the display terminal, the upper computer and the mobile terminal APP which conduct information in two directions are arranged, manual take-over and remote take-over can be guaranteed under the condition that an intelligent control system is not suitable, and the actual application value and reliability of the whole set of system are greatly improved; through self-adaptation's air conditioner opening condition and temperature control strategy, utilize display terminal and APP's demonstration function to guide the student simultaneously, improve classroom and air conditioner availability factor.
Second embodiment
The embodiment provides a smart classroom air-conditioning control method, which is implemented based on the smart classroom air-conditioning control system of the first embodiment. The air conditioner control method comprises the following steps:
step S201, acquiring the number of people in a classroom and the distribution information of people through a people counting device, and sending the number of people and the distribution information to an intelligent terminal;
step S202, an environment information acquisition device acquires temperature and humidity information in and out of a classroom and sends temperature and humidity parameters to an intelligent terminal;
step S203, the intelligent terminal receives the number of people and distribution information, and temperature and humidity information in and out of a classroom, makes an air conditioner control decision according to the received information and a preset air conditioner control strategy, and sends the decision to the air conditioner controller; the air conditioner control strategy in the step is a self-adaptive control strategy for dividing various scenes such as a classroom and self-study according to classroom course arrangement.
And step S204, the air conditioner controller receives an air conditioner control decision and controls the air conditioner according to the decision.
Further, the number of people in the classroom and the distribution information of people are obtained in step S201, specifically, the number of people in the classroom and the distribution state of people are counted by using the existing camera device in the classroom based on the real-time image of the classroom and using the image recognition technology, and the number of people and the distribution statistical information are transmitted to the intelligent terminal through the ethernet. Compared with the prior art, the embodiment utilizes the existing equipment, has low economic cost, simultaneously utilizes the latest computer vision technology, improves the people counting precision, can identify the seat distribution, and provides very good data support for realizing an effective air conditioner control means.
Further, the making of the air-conditioning control decision according to the received information and the preset air-conditioning control policy in step S203 includes:
step S203A, linking with the school teaching information, determining the classroom use status (the classroom use status at least includes class, self-study, examination, and closing).
By linking with the school teaching arrangement information, the classroom use states are divided into four scenes, namely examination, class taking, self-study, closing and the like. The temperature information decision mode is implemented on the air conditioner in examination and class scenes, the influence of people number factors on the decision is cut off, and the comfort of class environment is ensured. The self-study mode implements double control of temperature and number of people, guides students to go to the classroom with more number of people and low temperature for self-study, improves the utilization rate of the whole classroom and the utilization rate of an air conditioner, and realizes the effect of energy conservation. The closing mode is that the closing time of the classroom automatically cuts off the power of the air conditioner, thereby saving energy.
Step S203B, acquiring environmental temperature and humidity information inside and outside the classroom through an environmental information acquisition device, judging the season by combining with date information, and deciding the mode of air conditioner application (the mode comprises refrigeration, heating and dehumidification); and designing the temperature and the wind speed of the air conditioner by combining two dimensions of a first temperature difference value between the indoor temperature and the outdoor temperature and a second temperature difference value between the indoor temperature and the set temperature.
In actual operation, the set temperature of the air conditioner is one degree higher per liter in summer, so that a large amount of electric energy can be saved. In the scheme, after the air conditioner is judged to be started, the set temperature and the set wind speed are continuously controlled. And judging the operation modes of heating, refrigerating, dehumidifying and the like by combining date, season and humidity information. And (4) making a decision on the set temperature of the air conditioner by combining the indoor and outdoor ambient temperatures. Meanwhile, the comfort level of most students in a classroom is considered, the summer target temperature in the classroom is set to be 24-26 ℃ for self-adaptive adjustment according to the summer room temperature standard of public facilities in China, and the set temperature is designed by combining the number of people in the classroom, so that the more the number of people is, the lower the set temperature is. The wind speed is controlled by combining the difference value between the set temperature and the environment temperature, and the wind speed is reduced along with the reduction of the temperature difference, so that the energy-saving effect is exerted.
Step S203C, combining the people counting information and the environment information, self-adaptively judging whether to start the air conditioner according to the classroom use state and the air conditioner application mode; and determining the number of the opened air conditioners according to the number of people and the seat distribution information.
In the embodiment, adaptive air conditioner starting conditions are set according to special function requirements of a classroom. The main purpose is to save energy in classrooms and reduce the phenomenon that a few people turn on the air conditioner as far as possible. According to classroom course arrangement and seat setting and the use condition of classrooms of schools, the air conditioner opening threshold is set to fluctuate between 5% and 10% in a self-adaptive mode, and the air conditioner cannot be opened when the air conditioner opening threshold is lower than the threshold value. When the number of people does not reach the full-open standard, the number of the turned-on air conditioners is intelligently decided according to the distribution of seats in the classroom, and the air conditioners in the front, in the middle and at the back of the classroom are intelligently turned on by considering the actual arrangement number and the position of the air conditioners in the classroom.
Therefore, according to the intelligent classroom air conditioner control method, the number counting function is achieved by adopting an image recognition technology based on a classroom camera, the number recognition accuracy is improved, the position distribution can be effectively judged, an intelligent analysis terminal is used for judging an air conditioner control strategy on the basis of the personnel information and the temperature and humidity information in a classroom, the problem of contradiction between classroom self-study, classroom teaching requirements and energy conservation and consumption reduction is solved, an actual control instruction considering comfort level and high-efficiency performance is formed, and an air conditioner controller which is based on infrared and can be adapted to all common air conditioning equipment on the market is used for controlling the air conditioner; meanwhile, a display terminal and an upper computer control system are added outside the intelligent control, manual take-over is achieved according to the requirements of actual conditions on the basis of the intelligent control, the reliability of the system is improved, the guidance of students is achieved through the display function and the temperature gradient setting, and the utilization efficiency of classrooms and air conditioners is improved. Through the setting of the air conditioner opening threshold value, the phenomenon that the air conditioner in the classroom is opened due to individual classmates is reduced, students are guided to go to the classroom with more people and low temperature, and the whole classroom utilization rate and the air conditioner utilization rate are improved. The functional requirements of a special scene of a classroom are fully combined from the aspect of a control strategy, the air conditioner is intelligently controlled on the basis of meeting the requirements of teaching and the like, the application scene of the classroom is considered in decision information, and a self-adaptive control method of variables such as a threshold value of startup and shutdown, a statistical result of set temperature/wind speed of the air conditioner along with the number of people, indoor and outdoor temperature difference, temperature difference between set temperature and environment temperature and the like is provided, so that the effects of saving energy and reducing consumption are achieved; need not to carry out the classroom and reform transform, economic cost angle, can popularize nature by force.
Those of ordinary skill in the art will understand that: the figures are merely schematic representations of one embodiment, and the blocks or flow diagrams in the figures are not necessarily required to practice the present invention.
The embodiments in the present specification are described in a progressive manner, and the same and similar parts among the embodiments are referred to each other, and each embodiment focuses on the differences from the other embodiments. In particular, for apparatus or system embodiments, since they are substantially similar to method embodiments, they are described in relative terms, as long as they are described in partial descriptions of method embodiments. The above-described embodiments of the apparatus and system are merely illustrative, and the units described as separate parts may or may not be physically separate, and the parts displayed as units may or may not be physical units, may be located in one place, or may be distributed on 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. One of ordinary skill in the art can understand and implement it without inventive effort.
Those of ordinary skill in the art will understand that: the components in the devices in the embodiments may be distributed in the devices in the embodiments according to the description of the embodiments, or may be correspondingly changed in one or more devices different from the embodiments. The components of the above embodiments may be combined into one component, or may be further divided into a plurality of sub-components.
The above description is only for the preferred embodiment of the present invention, but the scope of the present invention is not limited thereto, and any changes or substitutions that can be easily conceived by those skilled in the art within the technical scope of the present invention are included in the scope of the present invention. Therefore, the protection scope of the present invention shall be subject to the protection scope of the claims.
Claims (10)
1. The utility model provides a wisdom classroom air conditioning control system which characterized in that, the air conditioning control system includes: the system comprises a people counting device, an environmental information acquisition device, an intelligent terminal, an air conditioner controller and an air conditioner; wherein,
the people counting device is connected with the intelligent terminal and used for acquiring the number and the distribution information in the classroom and sending the number and the distribution information to the intelligent terminal;
the environment information acquisition device is connected with the intelligent terminal and used for acquiring indoor and outdoor temperature and humidity information and sending temperature and humidity parameters to the intelligent terminal;
the intelligent terminal is connected with the air conditioner controller and used for receiving the information of the people counting device and the environmental information acquisition device, making an air conditioner control decision according to the received information and a preset air conditioner control strategy and sending the air conditioner control decision to the air conditioner controller;
and the air conditioner controller is connected with the air conditioner and is used for receiving the air conditioner control decision of the intelligent terminal and controlling the air conditioner according to the air conditioner control decision.
2. The air conditioning control system of claim 1, wherein the people counting device is further configured to use an existing camera in the intelligent classroom to count people and people distribution in the classroom based on a real-time image of the classroom and using an image recognition technology to obtain people and distribution information.
3. The air conditioning control system according to claim 1, further comprising: a display terminal;
and the display terminal is connected with the intelligent terminal through the Ethernet and used for displaying real-time information and controlling the air conditioner controller through feedback with the intelligent terminal.
4. The air conditioning control system according to claim 1, further comprising: an upper computer;
the upper computer is connected with the intelligent terminal through an Ethernet and used for sending a control instruction for an air conditioner to the intelligent terminal;
the intelligent terminal is further used for pushing classroom real-time environment information and air conditioner control information to the upper computer.
5. The climate control system of claim 4, further comprising: mobile terminal APP, APP with the host computer links to each other, and with the host computer carries out information interaction for set up two kinds of authorities of teacher and student, the teacher authority is including inquiring classroom information and through APP direct control classroom air conditioning system, and the student authority is including inquiring classroom information, does not include control function.
6. The air conditioning control system according to any one of claims 1 to 5, wherein the smart terminal is further configured to:
the method comprises the steps that operation A, according to the people counting information and the environmental information, a control instruction is generated according to the set control decision according to the classroom use condition and is transmitted to an air conditioner controller through a network;
b, obtaining environmental temperature and humidity information inside and outside the classroom through an environmental information acquisition device, judging the season by combining date information, and deciding an air conditioner application mode;
operation C, linking with school teaching information, and judging the classroom use state;
and D, solving the operation problem of the student smart phone.
7. The climate control system of claim 6, wherein the climate application modes include cooling, heating, and dehumidification.
8. The climate control system of claim 6, wherein the classroom usage status includes at least class, study, examination, and shutdown.
9. A smart classroom air conditioner control method is characterized by comprising the following steps:
step S201, acquiring the number of people in a classroom and the distribution information of people through a people counting device, and sending the number of people and the distribution information to an intelligent terminal;
step S202, an environment information acquisition device acquires temperature and humidity information in and out of a classroom and sends temperature and humidity parameters to an intelligent terminal;
step S203, the intelligent terminal receives the number of people and distribution information, and temperature and humidity information in and out of a classroom, makes an air conditioner control decision according to the received information and a preset air conditioner control strategy, and sends the decision to the air conditioner controller;
and step S204, the air conditioner controller receives an air conditioner control decision and controls the air conditioner according to the decision.
10. The intelligent classroom air-conditioning control method as claimed in claim 9, wherein the step S203 of making an air-conditioning control decision according to the received information and a preset air-conditioning control strategy comprises:
step S203A, linking with school teaching information, judging the classroom use state;
step S203B, acquiring environmental temperature and humidity information inside and outside the classroom through an environmental information acquisition device, judging the season by combining with date information, and deciding the mode of air conditioner application;
step S203C, combining the people counting information and the environment information, self-adaptively judging whether to start the air conditioner according to the classroom use state and the air conditioner application mode; and determining the number of the opened air conditioners according to the number of people and the seat distribution information.
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