CN111059730B - Control method and system of air conditioner air cabinet and terminal equipment - Google Patents

Control method and system of air conditioner air cabinet and terminal equipment Download PDF

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CN111059730B
CN111059730B CN201911388032.2A CN201911388032A CN111059730B CN 111059730 B CN111059730 B CN 111059730B CN 201911388032 A CN201911388032 A CN 201911388032A CN 111059730 B CN111059730 B CN 111059730B
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air
cabinet
air conditioner
sensor data
sensor
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CN111059730A (en
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易检长
何影
任中俊
谢玉军
欧阳前武
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SHENZHEN SECOM TECHNOLOGY CO LTD
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SHENZHEN SECOM TECHNOLOGY CO LTD
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    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
    • F24F11/00—Control or safety arrangements
    • F24F11/62—Control or safety arrangements characterised by the type of control or by internal processing, e.g. using fuzzy logic, adaptive control or estimation of values
    • F24F11/63—Electronic processing
    • F24F11/64—Electronic processing using pre-stored data
    • 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
    • F24F11/52—Indication arrangements, e.g. displays
    • 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
    • F24F11/70—Control systems characterised by their outputs; Constructional details thereof
    • F24F11/72—Control systems characterised by their outputs; Constructional details thereof for controlling the supply of treated air, e.g. its pressure
    • 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
    • F24F11/70—Control systems characterised by their outputs; Constructional details thereof
    • F24F11/72—Control systems characterised by their outputs; Constructional details thereof for controlling the supply of treated air, e.g. its pressure
    • F24F11/74—Control systems characterised by their outputs; Constructional details thereof for controlling the supply of treated air, e.g. its pressure for controlling air flow rate or air velocity
    • F24F11/77—Control systems characterised by their outputs; Constructional details thereof for controlling the supply of treated air, e.g. its pressure for controlling air flow rate or air velocity by controlling the speed of ventilators
    • 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
    • F24F11/70—Control systems characterised by their outputs; Constructional details thereof
    • F24F11/80—Control systems characterised by their outputs; Constructional details thereof for controlling the temperature of the supplied air
    • F24F11/83—Control systems characterised by their outputs; Constructional details thereof for controlling the temperature of the supplied air by controlling the supply of heat-exchange fluids to heat-exchangers
    • F24F11/84—Control systems characterised by their outputs; Constructional details thereof for controlling the temperature of the supplied air by controlling the supply of heat-exchange fluids to heat-exchangers using valves
    • 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
    • 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
    • F24F2110/50—Air quality properties
    • F24F2110/65—Concentration of specific substances or contaminants
    • F24F2110/70—Carbon dioxide
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02B—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
    • Y02B30/00—Energy efficient heating, ventilation or air conditioning [HVAC]
    • Y02B30/70—Efficient control or regulation technologies, e.g. for control of refrigerant flow, motor or heating

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  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Signal Processing (AREA)
  • Fluid Mechanics (AREA)
  • Fuzzy Systems (AREA)
  • Mathematical Physics (AREA)
  • Human Computer Interaction (AREA)
  • Air Conditioning Control Device (AREA)

Abstract

The application discloses a control method, a control system and terminal equipment of an air conditioner air cabinet, wherein the method comprises the following steps: acquiring first sensor data or a first time point, wherein the first sensor data comprises a carbon dioxide concentration; if the data of the first sensor exceeds a first set threshold value or the first time point reaches a preset starting time point, starting an air conditioner air cabinet; and if the first time point reaches the preset shutdown time point, shutting down the air conditioner air cabinet. Through the mode, the intelligent control of the air conditioner air cabinet is realized, the problems that the system integration level of an air conditioner air cabinet control module is low, the occupied area is too large, the control strategy adjustment is not flexible and the like in the related technology are solved, and the functions of high integration, space saving, field adjustment of the air cabinet control strategy and the like are realized.

Description

Control method and system of air conditioner air cabinet and terminal equipment
Technical Field
The application relates to the field of air conditioners, in particular to a control method and system of an air conditioner air cabinet and terminal equipment.
Background
According to statistics, in the energy consumption of public buildings, the energy consumption of a central air conditioner accounts for 40% -60% of the energy consumption of the whole building, and in order to realize energy-saving operation of a central air conditioning system, intelligent control equipment of the central air conditioner is often installed.
The intelligent control equipment of the central air conditioner comprises intelligent control equipment of a cold station, intelligent control equipment of a water pump, intelligent control equipment of a cooling tower and intelligent control equipment of an air cabinet of the air conditioner. The existing air conditioner air cabinet intelligent control equipment mainly comprises an air conditioner air cabinet controller, a power controller, a frequency converter and a control cabinet body. The control mode is mainly realized by adopting a programmable logic controller and direct digital control.
When a programmable logic controller product is adopted, secondary equipment integration needs to be carried out on a programmable logic controller module comprising an air switch, an analog input/output module, a central processing unit, a relay, a wiring terminal, an alternating current transformer, a direct current power supply, a frequency converter and the like, so that the project implementation time is too long, the input cost is too high, and the field occupied area of the traditional air conditioner air cabinet intelligent control equipment is large, so that the effective utilization of space is not facilitated.
When a direct digital control product is adopted, basic application function programs and parameters are solidified in the direct digital control product, so that the flexibility is lacked, and the control strategy of the air conditioner air cabinet cannot be adjusted according to independent editing requirements of different project site conditions.
Disclosure of Invention
In order to solve the problems, the application provides a control method and system of an air conditioner air cabinet and terminal equipment, so that the problems that a control module of the air conditioner air cabinet is low in system integration level, too occupies too much space, and control strategy adjustment is not flexible are solved, and functions of high integration, space saving, regulation of control strategies of the air cabinet according to needs and the like are achieved.
The technical scheme adopted by the application is to provide a control method of an air conditioner air cabinet, and the method comprises the following steps: acquiring first sensor data or a first time point, wherein the first sensor data comprises a carbon dioxide concentration; if the data of the first sensor exceeds a first set threshold value or the first time point reaches a preset starting time point, starting an air conditioner air cabinet; and if the first time point reaches the preset shutdown time point, shutting down the air conditioner air cabinet.
Wherein, the method also comprises: acquiring second sensor data, wherein the second sensor data comprises return air temperature; calculating the output frequency of the air conditioner air cabinet based on the second sensor data; and sending the output frequency to a frequency control module of the air conditioner air cabinet so that the frequency control module controls the rotating speed of a fan of the air conditioner air cabinet.
Wherein, calculate the output frequency of air conditioner wind cabinet based on second sensor data, include: acquiring a second set threshold; and calculating the output frequency of the air conditioner air cabinet by using a preset algorithm based on the second sensor data and a second set threshold value.
Wherein, based on second sensor data and the second threshold value of setting for, utilize the output frequency of the air conditioner wind cabinet of predetermineeing algorithm calculation after, include: if the data of the second sensor is smaller than a second set threshold value, the output frequency is equal to the minimum output frequency, and the duration is longer than a first time period, adjusting the water valve to a first opening degree, wherein the first opening degree is smaller than the current opening degree of the water valve; if the data of the second sensor is larger than a second set threshold value, the output frequency is equal to the maximum output frequency, and the duration is larger than a second time period, adjusting the water valve to a second opening degree, wherein the second opening degree is larger than the current opening degree of the water valve;
wherein after acquiring the second sensor data, comprising: obtaining third sensor data, wherein the third sensor data comprises an outdoor temperature; and controlling the opening or closing of the air valve according to the second sensor data and the third sensor data.
Wherein, the air valve comprises a fresh air valve and a return air valve; controlling the opening or closing of the damper according to the second sensor data and the third sensor data, including: if the data of the third sensor is larger than a third set threshold value and the duration time is larger than a third time period, closing the fresh air valve and opening the return air valve; and if the data of the third sensor is smaller than a third set threshold and the duration is longer than a fourth time period, closing the return air valve and opening the fresh air valve.
Wherein, the method also comprises: when the first sensor, the second sensor and the third sensor are abnormal, an abnormal alarm is given out to inform a user; the abnormal alarm mode comprises short messages, mails and social applications.
Another technical solution adopted by the present application is to provide a terminal device, where the terminal device includes a processor and a memory connected to the processor; the memory is for storing program data and the processor is for executing the program data to implement any of the methods of the above aspects.
The other technical scheme adopted by the application is to provide a control system of an air conditioner air cabinet, wherein the control system is applied to control equipment of the air conditioner air cabinet; the control device of the air-conditioning air cabinet is the terminal device of the scheme.
Another technical solution adopted by the present application is to provide a computer-readable storage medium for storing program data, which when executed by a processor, is used to implement any one of the methods of the above-mentioned solutions.
The beneficial effect of this application is: different from the situation of the prior art, the control method of the air conditioner air cabinet comprises the following steps: acquiring first sensor data or a first time point, wherein the first sensor data comprises a carbon dioxide concentration; if the data of the first sensor exceeds a first set threshold value or the first time point reaches a preset starting time point, starting an air conditioner air cabinet; and if the first time point reaches the preset shutdown time point, shutting down the air conditioner air cabinet. Through the mode, the problems that the air conditioner air cabinet control module in the prior art is low in system integration level, too large in occupied space and inflexible in control strategy adjustment are solved, functions such as high integration, space saving and air cabinet control strategy adjustment according to needs are achieved, the on-site air conditioner air cabinet control requirements of different projects can be met, the limitation of control function solidification of air conditioner air cabinet control products on the market is eliminated, and updating iteration can be carried out according to rapid development of scientific technology.
Drawings
In order to more clearly illustrate the technical solutions in the embodiments of the present application, 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 application, and it is obvious for those skilled in the art to obtain other drawings based on these drawings without creative efforts. Wherein:
fig. 1 is a schematic flow chart of a first embodiment of a control method of an air conditioner air cabinet provided by the present application;
FIG. 2 is a schematic flow chart illustrating a second embodiment of a control method for an air conditioning cabinet according to the present application;
FIG. 3 is a schematic flow chart illustrating a third embodiment of a control method for an air conditioning cabinet according to the present application;
FIG. 4 is a schematic flow chart illustrating a fourth embodiment of a control method for an air conditioning cabinet according to the present application;
fig. 5 is a schematic structural diagram of a first embodiment of a terminal device provided in the present application;
fig. 6 is a schematic structural diagram of a second embodiment of a terminal device provided in the present application;
fig. 7 is a schematic structural diagram of an air conditioning cabinet controller in a terminal device provided by the present application;
fig. 8 is a schematic structural diagram of a power controller in a terminal device provided by the present application;
fig. 9 is a schematic structural diagram of an air conditioning cabinet in a terminal device provided by the present application;
fig. 10 is a schematic structural diagram of a network controller in a terminal device provided in the present application;
FIG. 11 is a flow chart illustrating one embodiment of a computer-readable storage medium provided herein.
Detailed Description
The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application. It is to be understood that the specific embodiments described herein are merely illustrative of the application and are not limiting of the application. It should be further noted that, for the convenience of description, only some of the structures related to the present application are shown in the drawings, not all of the structures. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present application.
Reference herein to "an embodiment" means that a particular feature, structure, or characteristic described in connection with the embodiment can be included in at least one embodiment of the application. The appearances of the phrase in various places in the specification are not necessarily all referring to the same embodiment, nor are separate or alternative embodiments mutually exclusive of other embodiments. It is explicitly and implicitly understood by one skilled in the art that the embodiments described herein can be combined with other embodiments.
Referring to fig. 1, fig. 1 is a schematic flow chart of a first embodiment of a control method for an air conditioning cabinet according to the present application, where the method includes:
step 11: first sensor data or a first point in time is acquired.
Wherein the first sensor may be a carbon dioxide concentration sensor and the first sensor data includes a carbon dioxide concentration. The first time point refers to a current time point, and if the current time is 8 points, the first time point is 8 points. The time period is one day, and each hour and every minute can be the first time point.
It is understood that the carbon dioxide concentration is a carbon dioxide concentration in an indoor space, and the higher the carbon dioxide concentration is, the higher the indoor temperature is.
In some embodiments, the first sensor data further comprises an indoor temperature.
Step 12: and if the data of the first sensor exceeds a first set threshold value or the first time point reaches a preset starting time point, starting the air conditioner air cabinet.
In some embodiments, the first sensor data is carbon dioxide concentration, and the first set threshold is a carbon dioxide concentration threshold, such as a carbon dioxide concentration threshold of 1000ppm, 1800ppm, 2000 ppm. This concentration threshold is set on a case-by-case basis. And when the obtained carbon dioxide concentration exceeds the carbon dioxide concentration threshold value, starting the air conditioner air cabinet. For example: the obtained carbon dioxide concentration is 1500ppm, the carbon dioxide concentration threshold value is 1200ppm, and at the moment, the carbon dioxide concentration exceeds the carbon dioxide concentration threshold value, and the air-conditioning air cabinet is opened.
In some embodiments, the first sensor data is an indoor temperature, and the first set threshold is an indoor temperature threshold. And when the obtained indoor temperature exceeds an indoor temperature threshold value, starting the air conditioner air cabinet. For example: and the obtained indoor temperature is 35 ℃, the indoor temperature threshold value is 28 ℃, and the air conditioner air cabinet is started when the indoor temperature exceeds the indoor temperature threshold value.
In some embodiments, when the first time point reaches the preset opening time point, the air conditioner air cabinet is opened. For example: the preset starting time point is nine am, the acquired first time point is nine tenths of am, and the air conditioner air cabinet is started when the first time point exceeds the preset starting time point. Another example is: the preset starting time point is eight am, and when the first time point is eight am, the air conditioner air cabinet is started.
Step 13: and if the first time point reaches the preset shutdown time point, shutting down the air conditioner air cabinet.
In some embodiments, when the first time point reaches the preset shutdown time point, the air conditioner cabinet is shut down. For example: the preset shutdown time point is nine pm, and when the first time point is nine pm, the air-conditioning air cabinet is shut down. It is understood that the preset shutdown time point is set according to actual needs.
In a specific embodiment, a space wind cabinet start-stop time table is established, the preset start time point is the start time in the start-stop time table, and the preset shutdown time point is the shutdown time in the start-stop time table. If the acquired data of the carbon dioxide concentration sensor obtained by the air conditioner air cabinet exceeds the relevant national standard limit value, if 800ppm, the air conditioner air cabinet is opened; if the Beijing time reaches the opening time of the air conditioner air cabinet start-stop time table, the air conditioner air cabinet is opened, if for a certain office building, the start-stop time of the air conditioner air cabinet from Monday to Friday is 8: 30, of a nitrogen-containing gas; if the Beijing time reaches the set air conditioner air cabinet start-stop time, the air conditioner air cabinet is shut down, if for a certain office building, the start-stop time of the air conditioner air cabinet from Monday to Friday is 17: 30.
different from the situation of the prior art, the control method of the air conditioner air cabinet comprises the following steps: acquiring first sensor data or a first time point, wherein the first sensor data comprises a carbon dioxide concentration; if the data of the first sensor exceeds a first set threshold value or the first time point reaches a preset starting time point, starting an air conditioner air cabinet; and if the first time point reaches the preset shutdown time point, shutting down the air conditioner air cabinet. Through the mode, the intelligent control of the air conditioner air cabinet is realized, the problems that the integration level of an air conditioner air cabinet control module system is low, the occupied area is too large, the control strategy adjustment is not flexible and the like in the related technology are solved, the high integration is realized, the space is saved, the functions of adjusting the air cabinet control strategy and the like as required are realized, the control requirements of the air conditioner air cabinet on different projects can be met, the limitation of control function solidification of air conditioner air cabinet control products on the market is eliminated, and updating iteration can be performed according to the rapid development of scientific technology.
Referring to fig. 2, fig. 2 is a schematic flow chart of a second embodiment of a control method of an air conditioner cabinet according to the present application, the method including:
step 21: second sensor data is acquired.
Wherein the second sensor data includes return air temperature, humidity.
Step 22: and calculating the output frequency of the air conditioner air cabinet based on the second sensor data.
In this step, calculating the output frequency of the air-conditioning cabinet based on the second sensor data includes:
acquiring a second set threshold; and calculating the output frequency of the air conditioner air cabinet by using a preset algorithm based on the second sensor data and a second set threshold value.
And the second set threshold is a preset indoor temperature. The preset algorithm may use an incremental PID algorithm. The concrete formula is as follows:
Δuk＝uk-uk-1＝KP*(ek-ek-1)+Ki*ek+Kd*[ek-2*ek-1+ek-2]；
wherein u represents the fan frequency of the air-conditioning cabinet, and delta ukRepresenting the frequency increment at time K, KP、Ki、KdIs a predetermined constant, ekThe difference value between the preset indoor temperature and the indoor temperature is obtained;
ek＝T-T2；
wherein T is a preset indoor temperature, T2Is the temperature of return air
Then, combining the incremental PID algorithm and the adaptive algorithm to obtain a formula as follows:
Δuk＝Δuk*(1+Kx)；
in the formula:
Figure BDA0002344111360000071
when K isxAt less than a specific ratio M, Δ uk＝Δuk(ii) a When K isxAt a ratio greater than a specific ratio M,. DELTA.uk＝Δuk*(1+Kx) Therefore, the optimal output frequency of the air conditioner air cabinet frequency control module can be calculated.
That is, the output frequency of the air-conditioning air cabinet is the current frequency plus delta uk；
Step 23: and sending the output frequency to a frequency control module of the air conditioner air cabinet so that the frequency control module controls the rotating speed of a fan of the air conditioner air cabinet.
In some embodiments, the calculated frequency increment may be sent to a frequency control module of the air-conditioning cabinet, and the frequency control module of the air-conditioning cabinet calculates the rotation speed of the fan through the frequency increment to control the rotation of the fan of the air-conditioning cabinet.
In some embodiments, after sending the output frequency to a frequency control module of the air-conditioning air cabinet so that the frequency control module controls a rotation speed of a fan of the air-conditioning air cabinet, the method further includes:
and if the data of the second sensor is less than a second set threshold value, the output frequency is equal to the minimum output frequency, and the duration is longer than the first time period, adjusting the water valve to a first opening degree, wherein the first opening degree is less than the current opening degree of the water valve. For example: the second sensor data is temperature twenty degrees centigrade, the second set threshold value is twenty eight degrees centigrade, the output frequency of the fan is the minimum output frequency through calculation, and the continuous working time of the fan at the minimum output frequency is longer than the first time period, for example, the first time period is five minutes. And sending an instruction to adjust the water valve to a first opening degree, wherein the first opening degree is smaller than the current opening degree of the water valve.
And if the data of the second sensor is greater than a second set threshold value, the output frequency is equal to the maximum output frequency, and the duration is greater than a second time period, adjusting the water valve to a second opening degree, wherein the second opening degree is greater than the current opening degree of the water valve. For example: the data of the second sensor is thirty-five degrees centigrade, the second set threshold value is twenty-eight degrees centigrade, the output frequency of the fan is the maximum output frequency through calculation, and the continuous working time of the fan at the maximum output frequency is longer than a second time period, for example, the second time period is five minutes. And sending an instruction to adjust the water valve to a second opening degree, wherein the second opening degree is smaller than the current opening degree of the water valve.
In one embodiment, if T2<T, when the optimal output frequency of the air conditioner air cabinet frequency control module reaches the lower limit value of 30Hz and the duration time T2 is longer than 30min, the opening degree of the water valve is reduced; if T2>T, when the optimal output frequency of the air conditioner air cabinet frequency control module reaches an upper limit value, 50Hz, and the duration time is T2, if the time is more than 30min, the opening degree of the water valve is increased.
Referring to fig. 3, fig. 3 is a schematic flow chart of a third embodiment of a control method for an air conditioning cabinet according to the present application, the method including:
step 31: second sensor data is acquired.
Wherein the second sensor data includes return air temperature, humidity.
Step 32: third sensor data is acquired.
Wherein the third sensor data includes outdoor temperature, humidity.
Step 33: and controlling the opening or closing of the air valve according to the second sensor data and the third sensor data.
The air valve comprises a fresh air valve and a return air valve, the fresh air valve is used for controlling the flow of fresh air, and the return air valve is used for controlling the flow of return air.
In some embodiments, if the third sensor data is greater than the third set threshold and the duration is greater than the third time period, the fresh air valve is closed and the return air valve is opened. For example:
in some embodiments, if the third sensor data is less than the third set threshold and the duration is greater than the fourth time period, the return air valve is closed and the fresh air valve is opened. For example:
in one embodiment, if the outdoor fresh air temperature T is lower than the indoor temperature T1≥T2-K1E.g. K12 ℃ and T1Greater than a specified value TmE.g. TmIf the temperature is 20 ℃, the duration is t1, and if the time is more than 10min, the fresh air valve is closed, and the return air valve is opened; if the outdoor fresh air temperature T1≤T2-K1E.g. K12 ℃ and T1Less than a specific value TmE.g. TmAnd (4) closing the return air valve and opening the fresh air valve when the temperature is 20 ℃ and the duration is t1 and is more than 10 min. Wherein T is2-K1Is the third set threshold.
In some embodiments, the method comprises alarm management, and when the first sensor, the second sensor and the third sensor are abnormal, an abnormal alarm is performed to inform a user; the abnormal alarm mode comprises short messages, mails and social applications.
The method specifically comprises the following steps: if the deviation of the data acquired by the fresh air valve acquisition module and the return air valve acquisition module from the preset value exceeds a specific proportion, such as more than 15%, and the deviation lasts for t3, such as more than 30min, the air valve gives an alarm; if the fresh air valve and the return air valve are closed simultaneously according to the data collected by the fresh air valve collecting module and the return air valve collecting module and the data are displayed for a time t4, if the time is more than 15min, the air valve gives an alarm; and if the sensor and the acquisition module cannot acquire data, the sensor and the acquisition module give an alarm.
The alarm mode comprises the steps of automatically pushing alarm information to field equipment management personnel through short messages, mails, WeChat and other modes and solving measures.
It is understood that, some control steps between any of the above embodiments may be performed synchronously or sequentially according to actual situations. The method can be adjusted according to the control requirements of the air-conditioning air cabinet on the site of different projects, and can also be updated and iterated according to the real-time development of the scientific technology.
Referring to fig. 4, fig. 4 is a schematic flow chart of a fourth embodiment of a control method of an air conditioner cabinet according to the present application;
step 41: according to the collection of CO2And setting an air conditioner air cabinet start-stop time table according to the data or items of the concentration sensor, and controlling the start-stop time of the air conditioner air cabinet.
Step 41 represents the start and stop control of the fan in the control method. In the bookIn the examples, CO2The concentration sensor data is the first sensor data in the above-described embodiment.
Step 41 specifically includes: if the air conditioner wind cabinet CO2And if the data collected by the concentration sensor exceeds the limit value of the relevant national standard, the air-conditioning air cabinet is opened. If the Beijing time reaches the opening time of the project set air conditioner air cabinet start-stop time table, starting the air conditioner air cabinet; and if the Beijing time reaches the closing time of the project set air conditioner air cabinet start-stop time table, closing the air conditioner air cabinet.
Step 42: and calculating the optimal output frequency of the air conditioner air cabinet frequency control module by using an incremental PID algorithm according to the data acquired by the return air temperature and humidity sensor of the air conditioner air cabinet and the preset indoor temperature, and adjusting the rotating speed of the fan according to the optimal output frequency of the air conditioner air cabinet frequency control module.
Step 42 represents the frequency control of the fan in the control method. In this embodiment, the return air temperature and humidity sensor data is the second sensor data in the above embodiments.
Step 42 may specifically calculate the optimal output frequency of the air conditioner air cabinet frequency control module according to the formula using the incremental PID algorithm in the above embodiment.
Step 43: and controlling the start and stop of the fresh air valve and the return air valve according to the data of the outdoor fresh air temperature and humidity sensor and the return air temperature of the air conditioner air cabinet.
Step 43 represents the interlocking control of the dampers in the control method. In this embodiment, the outdoor fresh air temperature and humidity sensor data is the third sensor data in the above embodiments.
Step 43 specifically includes:
if the outdoor fresh air temperature T1≥T2-K1E.g. K12 ℃ and T1>A specific value TmE.g. TmAnd (4) closing the fresh air valve and opening the return air valve when the temperature is 20 ℃ and the duration is t1 and is more than 10 min. If the outdoor fresh air temperature T1≤T2-K1E.g. K12 ℃ and T1<A specific value TmE.g. TmAnd (4) closing the return air valve and opening the fresh air valve when the temperature is 20 ℃ and the duration is t1 and is more than 10 min.
Step 44: and controlling the opening degree of the water valve according to the air return temperature of the air-conditioning air cabinet and the sequence of firstly adjusting water and then adjusting air.
Step 44 represents the coordinated control of the water valves in the control method.
Step 44 specifically includes:
if T2<T, when the optimal output frequency of the air conditioner air cabinet frequency control module reaches the lower limit value of 30Hz and the duration time T2 is more than 30min, the opening degree of the water valve is reduced. If T2>T, when the optimal output frequency of the air conditioner air cabinet frequency control module reaches an upper limit value, 50Hz, and the duration time is T2, if the time is more than 30min, the opening degree of the water valve is increased. In this embodiment, the above steps can be performed synchronously or sequentially according to actual conditions.
Referring to fig. 5, fig. 5 is a schematic structural diagram of a first embodiment of a terminal device provided in the present application, where the terminal device 50 includes a processor 51 and a memory 52 connected to the processor 51; the memory 52 is used for storing program data and the processor 51 is used for executing the program data to realize the following method:
acquiring first sensor data or a first time point, wherein the first sensor data comprises a carbon dioxide concentration; if the data of the first sensor exceeds a first set threshold value or the first time point reaches a preset starting time point, starting an air conditioner air cabinet; and if the first time point reaches the preset shutdown time point, shutting down the air conditioner air cabinet.
Optionally, when the processor 51 is used to execute the program data, the following method is further implemented: acquiring second sensor data, wherein the second sensor data comprises an indoor temperature; calculating the output frequency of the air conditioner air cabinet based on the second sensor data; and sending the output frequency to a frequency control module of the air conditioner air cabinet so that the frequency control module controls the rotating speed of a fan of the air conditioner air cabinet.
Optionally, when the processor 51 is used to execute the program data, the following method is further implemented: acquiring a second set threshold; and calculating the output frequency of the air conditioner air cabinet by using a preset algorithm based on the second sensor data and a second set threshold value.
Optionally, when the processor 51 is used to execute the program data, the following method is further implemented: if the data of the second sensor is smaller than a second set threshold value, the output frequency is equal to the minimum output frequency, and the duration is longer than a first time period, adjusting the water valve to a first opening degree, wherein the first opening degree is smaller than the current opening degree of the water valve; if the data of the second sensor is larger than a second set threshold value, the output frequency is equal to the maximum output frequency, and the duration is larger than a second time period, adjusting the water valve to a second opening degree, wherein the second opening degree is larger than the current opening degree of the water valve;
optionally, when the processor 51 is used to execute the program data, the following method is further implemented: obtaining third sensor data, wherein the third sensor data comprises an outdoor temperature; and controlling the opening or closing of the air valve according to the second sensor data and the third sensor data.
Optionally, when the processor 51 is used to execute the program data, the following method is further implemented: the air valve comprises a fresh air valve and a return air valve; if the data of the third sensor is larger than a third set threshold value and the duration time is larger than a third time period, closing the fresh air valve and opening the return air valve; and if the data of the third sensor is smaller than a third set threshold and the duration is longer than a fourth time period, closing the return air valve and opening the fresh air valve.
Optionally, when the processor 51 is used to execute the program data, the following method is further implemented: when the first sensor, the second sensor and the third sensor are abnormal, an abnormal alarm is given out to inform a user; the abnormal alarm mode comprises short messages, mails and social applications.
Referring to fig. 6, fig. 6 is a schematic structural diagram of a second embodiment of a terminal device 60 provided by the present application, where the terminal device includes a power controller 61 and an air-conditioning cabinet controller 62.
The power controller 61 is used for receiving the command of the 6-energy management platform or a field operation manager, controlling the starting of the air-conditioning air cabinet controller, providing illumination in the cabinet and reducing the temperature of the cabinet.
The air conditioner air cabinet controller 62 is used for controlling the air conditioner air cabinet to implement the method of the above embodiment.
In some embodiments, the terminal device 60 is in the form of a cabinet. The air-conditioning air cabinet controller 62 is connected with the power controller 61 in a wired mode and is integrated in the cabinet body of the terminal equipment 60.
Referring to fig. 6, the air conditioning cabinet controller 62 includes a fresh air valve control module 621, a return air valve control module 622, a water valve control module 623, a frequency control module 624, a liquid crystal display 625, a wireless transparent transmission module 626, and an ARM chip 627.
Wherein, the fresh air valve control module 621, the return air valve control module 622, the water valve control module 623, and the frequency control module 624 are connected to the ARM chip 627.
The ARM chip 627 is configured to receive fresh air valve opening data, return air valve opening data, water valve opening data, and fan frequency data transmitted by the fresh air valve control module 621, the return air valve control module 622, the water valve control module 623, and the frequency control module 624, generate a fresh air valve opening control signal, a return air valve opening control signal, a water valve opening control signal, and a fan frequency control signal according to the fresh air valve opening data, the return air valve opening data, the water valve opening data, and the fan frequency data, and transmit the above four control signals to the wireless transparent transmission module 626. ARM chip 627 may use Siemens-6 es7212-1ae40-0xb0 type CPU.
The wireless transparent transmission module 626 is wirelessly connected with the air conditioner air cabinet, receives the fresh air valve opening control signal, the return air valve opening control signal, the water valve opening control signal and the fan frequency control signal transmitted by the ARM chip 627, modulates the four control systems to obtain radio frequency signals of the four control signals, and transmits the radio frequency signals to a second wireless transparent transmission module of the air conditioner air cabinet.
Referring to fig. 7, the power controller 61 includes an air switch 611, an ac transformer 612, a dc power supply 613, an in-cabinet lighting fixture 614 and a heat sink 615.
The air switch 611 is used to protect the power controller, and when the current in the circuit exceeds the rated current, the air switch 611 will automatically open.
The ac transformer 612 is used to change the voltage level to provide an ac voltage.
The dc power supply 613 is used to supply dc power.
The in-cabinet lighting fixture 614 is used to provide lighting for the interior of the cabinet of the terminal device 60.
The heat sink 616 is used to dissipate heat for the cabinet of the terminal device 60.
In some embodiments, the terminal device 60 further includes an air conditioner air cabinet, and referring to fig. 8, the air conditioner air cabinet 63 includes an air conditioner air cabinet body 631, a fresh air temperature and humidity sensing module 632, a fresh air valve collecting module 633, a return air temperature sensing module 634, a return air valve collecting module 635, a water valve collecting module 636, a CO2 concentration sensing module 637, a frequency collecting module 638, and a second wireless transparent sensing module 639.
The fresh air temperature and humidity sensing module 632, the fresh air valve collecting module 633, the return air temperature sensing module 634, the return air valve collecting module 635, the water valve collecting module 636, the CO2 concentration sensing module 637, the frequency collecting module 638 and the second wireless transparent transmission module 639 are locally arranged in the air conditioner air cabinet body.
Fresh air temperature and humidity sensing module 632, fresh air valve collection module 633, return air temperature sensing module 634, return air valve collection module 635, water valve collection module 636, CO2 concentration sensing module 637 and frequency collection module 638 are connected with second wireless transparent transmission module 639. The second wireless transparent transmission module 639 receives the radio frequency signal transmitted by the wireless transparent transmission module 626, demodulates the radio frequency signal, obtains a fresh air valve opening control signal, a return air valve opening control signal, a water valve opening control signal, and a fan frequency control signal, and transmits the signals to the air conditioner air cabinet body. The air-conditioning air cabinet body receives the four control signals and adjusts the opening degree of a fresh air valve, the opening degree of a return air valve, the opening degree of a water valve and the operation frequency of a fan of the air-conditioning air cabinet. The keyboard receives a key operation command of a user or a field energy management person. Meanwhile, the second wireless transparent transmission module 637 of each air conditioner air cabinet receives fresh air temperature and humidity data, fresh air valve opening data, return air temperature and humidity data, return air valve opening data, water valve opening data and CO2 concentration data fed back by the fresh air temperature and humidity sensor, the fresh air valve acquisition module, the return air temperature and humidity sensor, the return air valve acquisition module, the water valve acquisition module and the CO2 concentration sensor, and feeds the data back to the wireless transparent transmission module 626 and the ARM chip 627 in the air conditioner air cabinet controller 62 through wireless radio frequency signals.
In some embodiments, the terminal device 60 further includes a network controller, and referring to fig. 9, the network controller 64 includes a microprocessor 641, a third wireless transparent module 642, an RJ-45 network interface 643, and the like.
On the other hand, the fresh air valve control module 621, the return air valve control module 622, the water valve control module 623 and the frequency control module 624 in each air conditioning cabinet controller 62 are connected to the ARM chip 627, and receive fresh air valve opening data, return air valve opening data, water valve opening data and fan frequency data transmitted by the fresh air valve control module 621, the return air valve control module 622, the water valve control module 623 and the frequency control module 624, and generate a wireless radio frequency signal through the wireless transparent transmission module 626, and transmit the data to the third wireless transparent transmission module 642 in the network controller 64. After receiving the data, the third wireless transparent transmission module 642 performs ethernet communication through the RJ-45 network cable interface 643 to upload the data to the energy management platform 65. Meanwhile, the wireless transparent transmission module 626 in each air conditioner air cabinet controller 62 can also receive operation and control commands sent by the energy pipe platform 65 through the third wireless transparent transmission module 642, and jointly determine the start-stop states of the air conditioner air cabinet including stop and start, the opening states of the fresh air valve including full-open state, opening and closing according to a specific proportion, the opening states of the return air valve including full-open state, opening and closing according to a specific proportion, the opening states of the water valve including full-open state, opening and closing according to a specific proportion, and the operation states of the fan including power frequency operation, frequency conversion operation, frequency setting value and the like, with the power controller 61.
The air-conditioning air cabinets 63, the air-conditioning air cabinet controllers 62 and the network controller 64 are communicated with one another through a wireless network to form a wireless network. The air-conditioning air cabinet controller 62 can realize two-side wireless communication with the air-conditioning air cabinet 63 and the network controller 64. The energy management platform 65 can be used for centralized remote display and monitoring of the operation state of the central air-conditioning air cabinet by workers, and the field building equipment manager can also be used for field control of the air-conditioning air cabinet through the air-conditioning air cabinet controller.
The frequency control module and the frequency acquisition module are power control modules which control the alternating current motor by applying a frequency conversion technology and a microelectronic technology and changing the working power supply frequency mode of the air conditioner air cabinet motor. By integrating the frequency control module, the frequency acquisition module and the air conditioner air cabinet controller, the investment cost, the volume of the control cabinet and the occupied area can be reduced.
The wireless radio frequency signals can adopt 433MHz and 2.4GHz global free frequency bands, a mesh network, a star network, a tree network or a chain network is formed by adopting a direct sequence spread spectrum method, and different types of wireless networks are formed according to actual requirements. Wireless links may also be implemented using wireless Wi-Fi networks, e.g., using the 2.4GUHF or 5GSHFISM radio frequency bands.
The antenna matched with the wireless transparent transmission module comprises a spring antenna, an SMA rubber rod antenna and the like.
The invention has the technical effects that the air conditioning cabinet controller and the frequency converter in the existing air conditioning cabinet intelligent control equipment are integrated into one controller, and simultaneously, through the combination of the wireless communication technology and the sensor technology, the wireless communication network is established between the air conditioning cabinet controller and the air conditioning cabinet body and between the air conditioning cabinet controller and the energy management platform through the wireless communication technology, namely, the bilateral wireless communication can be realized between the air conditioning cabinet controller and the air conditioning cabinet body and between the air conditioning cabinet controller and the network controller, so that the investment cost of the air conditioning cabinet can be reduced, and the volume and the floor area of the control cabinet can be reduced.
A control system of an air conditioner air cabinet is applied to control equipment of the air conditioner air cabinet; the control device of the air-conditioning air cabinet is the terminal device in the scheme.
The control system comprises a processor and a memory connected with the processor; the memory is used for storing program data, and the processor is used for executing the program data to realize the following method:
acquiring first sensor data or a first time point, wherein the first sensor data comprises a carbon dioxide concentration; if the data of the first sensor exceeds a first set threshold value or the first time point reaches a preset starting time point, starting an air conditioner air cabinet; and if the first time point reaches the preset shutdown time point, shutting down the air conditioner air cabinet.
The control system may implement any of the control methods in the above embodiments.
Referring to fig. 11, fig. 11 is a schematic structural diagram of an embodiment of a computer-readable storage medium provided in the present application, where the computer-readable storage medium 110 is used for storing program data 111, and the program data 111, when being executed by a processor, is used for implementing the following method steps:
acquiring first sensor data or a first time point, wherein the first sensor data comprises a carbon dioxide concentration; if the data of the first sensor exceeds a first set threshold value or the first time point reaches a preset starting time point, starting an air conditioner air cabinet; and if the first time point reaches the preset shutdown time point, shutting down the air conditioner air cabinet.
It will be appreciated that the program data 111, when executed by a processor, is also for implementing any of the embodiment methods described above.
The above description is only for the purpose of illustrating embodiments of the present application and is not intended to limit the scope of the present application, and all modifications of equivalent structures and equivalent processes, which are made by the contents of the specification and the drawings of the present application or are directly or indirectly applied to other related technical fields, are also included in the scope of the present application.

Claims (8)

1. A control method of an air conditioner air cabinet is characterized by comprising the following steps:
establishing an air conditioner air cabinet on-off time table, if the Beijing time reaches the set air conditioner air cabinet on-off time table on-off time, starting the air conditioner air cabinet, and if the Beijing time reaches the set air conditioner air cabinet on-off time table on-off time, stopping the air conditioner air cabinet;
acquiring first sensor data or a first time point, wherein the first sensor data comprises a carbon dioxide concentration or an indoor temperature;
if the data of the first sensor exceeds a first set threshold value or the first time point reaches a preset starting time point of the start-stop time table, starting the air conditioner air cabinet;
if the first time point reaches a preset shutdown time point of the start-stop time table, shutting down the air conditioner air cabinet;
acquiring second sensor data, wherein the second sensor data comprises the return air temperature of the air conditioner air cabinet;
calculating an output frequency of the air conditioning cabinet based on the second sensor data;
sending the output frequency to a frequency control module of the air-conditioning air cabinet so that the frequency control module controls the rotating speed of a fan of the air-conditioning air cabinet;
the calculating an optimal output frequency of the air conditioner air cabinet based on the second sensor data comprises:
acquiring a second set threshold;
based on the second sensor data and the second set threshold, calculating the optimal output frequency of the air conditioner air cabinet by using a preset algorithm, wherein:
the second set threshold is a preset indoor temperature; the specific formula of the preset algorithm is as follows: Δ uk＝uk-uk-1＝KP*(ek-ek-1)+Ki*ek+Kd*[ek-2*ek-1+ek-2](ii) a u represents the fan frequency of the air-conditioning cabinet, DeltaukRepresenting the frequency increment at time K, KP、Ki、KdIs a predetermined constant, ekThe difference value of the preset indoor temperature and the indoor temperature is obtained; e.g. of the typek＝T-T2(ii) a Wherein T is the preset indoor temperature, T2And then combining the preset algorithm and the adaptive algorithm to obtain the formula as follows: Δ uk＝Δuk*(1+Kx) (ii) a In the formula:
Figure FDA0003228108300000021
when K isxAt less than a specific ratio M, Δ uk＝Δuk(ii) a When K isxAt a ratio greater than a specific ratio M,. DELTA.uk＝Δuk*(1+Kx) Therefore, the optimal output frequency of the air-conditioning air cabinet frequency control module can be calculated, namely the current output frequency of the air-conditioning air cabinet plus delta uk。
2. The method of claim 1,
after calculating the optimal output frequency of the air-conditioning air cabinet by using a preset algorithm based on the second sensor data and the second set threshold, the method comprises the following steps:
if the data of the second sensor is smaller than the second set threshold, the optimal output frequency is equal to the minimum output frequency, and the duration is longer than a first time period, adjusting the water valve to a first opening degree, wherein the first opening degree is smaller than the current opening degree of the water valve;
and if the data of the second sensor is greater than the second set threshold value, the optimal output frequency is equal to the maximum output frequency, and the duration is greater than a second time period, adjusting the water valve to a second opening degree, wherein the second opening degree is greater than the current opening degree of the water valve.
3. The method of claim 1,
after the acquiring the second sensor data, the method includes:
obtaining third sensor data, wherein the third sensor data comprises an outdoor temperature;
and controlling the opening or closing of the air valve according to the second sensor data and the third sensor data.
4. The method of claim 3,
the air valve comprises a fresh air valve and a return air valve;
the controlling the opening or closing of the damper according to the second sensor data and the third sensor data includes:
if the data of the third sensor is larger than a third set threshold value and the duration time is larger than a third time period, closing the fresh air valve and opening the return air valve;
and if the data of the third sensor is smaller than a third set threshold and the duration is longer than a fourth time period, closing the return air valve and opening the fresh air valve.
5. The method of claim 4,
the method further comprises the following steps:
when the first sensor, the second sensor and the third sensor are abnormal, performing abnormal alarm to inform a user;
the abnormal alarm mode comprises short messages, mails and social applications.
6. A terminal device, characterized in that the terminal device comprises a processor and a memory connected with the processor;
the memory is for storing program data and the processor is for executing the program data to implement the method of any one of claims 1-5.
7. The control system of the air conditioner air cabinet is characterized in that the control system is applied to control equipment of the air conditioner air cabinet;
the control device of the air-conditioning wind cabinet is the terminal device of claim 6.
8. A computer-readable storage medium, characterized in that the computer-readable storage medium is used for storing program data, which, when being executed by a processor, is used for carrying out the method according to any one of claims 1-5.
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