CN114096044A - Energy-saving control system based on Internet of things cloud platform - Google Patents

Energy-saving control system based on Internet of things cloud platform Download PDF

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Publication number
CN114096044A
CN114096044A CN202111319105.XA CN202111319105A CN114096044A CN 114096044 A CN114096044 A CN 114096044A CN 202111319105 A CN202111319105 A CN 202111319105A CN 114096044 A CN114096044 A CN 114096044A
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China
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sensor
temperature
humidity
energy
data
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CN202111319105.XA
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Chinese (zh)
Inventor
李晓芳
汤铭
潘群
孟祥莲
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Changzhou Institute of Technology
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Changzhou Institute of Technology
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Priority to CN202111319105.XA priority Critical patent/CN114096044A/en
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    • H—ELECTRICITY
    • H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
    • H05B—ELECTRIC HEATING; ELECTRIC LIGHT SOURCES NOT OTHERWISE PROVIDED FOR; CIRCUIT ARRANGEMENTS FOR ELECTRIC LIGHT SOURCES, IN GENERAL
    • H05B47/00—Circuit arrangements for operating light sources in general, i.e. where the type of light source is not relevant
    • H05B47/10—Controlling the light source
    • H05B47/105—Controlling the light source in response to determined parameters
    • 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
    • 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
    • H—ELECTRICITY
    • H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
    • H05B—ELECTRIC HEATING; ELECTRIC LIGHT SOURCES NOT OTHERWISE PROVIDED FOR; CIRCUIT ARRANGEMENTS FOR ELECTRIC LIGHT SOURCES, IN GENERAL
    • H05B47/00—Circuit arrangements for operating light sources in general, i.e. where the type of light source is not relevant
    • H05B47/10—Controlling the light source
    • H05B47/105—Controlling the light source in response to determined parameters
    • H05B47/11—Controlling the light source in response to determined parameters by determining the brightness or colour temperature of ambient light
    • H—ELECTRICITY
    • H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
    • H05B—ELECTRIC HEATING; ELECTRIC LIGHT SOURCES NOT OTHERWISE PROVIDED FOR; CIRCUIT ARRANGEMENTS FOR ELECTRIC LIGHT SOURCES, IN GENERAL
    • H05B47/00—Circuit arrangements for operating light sources in general, i.e. where the type of light source is not relevant
    • H05B47/10—Controlling the light source
    • H05B47/105—Controlling the light source in response to determined parameters
    • H05B47/115—Controlling the light source in response to determined parameters by determining the presence or movement of objects or living beings
    • H05B47/13—Controlling the light source in response to determined parameters by determining the presence or movement of objects or living beings by using passive infrared detectors
    • H—ELECTRICITY
    • H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
    • H05B—ELECTRIC HEATING; ELECTRIC LIGHT SOURCES NOT OTHERWISE PROVIDED FOR; CIRCUIT ARRANGEMENTS FOR ELECTRIC LIGHT SOURCES, IN GENERAL
    • H05B47/00—Circuit arrangements for operating light sources in general, i.e. where the type of light source is not relevant
    • H05B47/10—Controlling the light source
    • H05B47/105—Controlling the light source in response to determined parameters
    • H05B47/14—Controlling the light source in response to determined parameters by determining electrical parameters of the light source
    • H—ELECTRICITY
    • H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
    • H05B—ELECTRIC HEATING; ELECTRIC LIGHT SOURCES NOT OTHERWISE PROVIDED FOR; CIRCUIT ARRANGEMENTS FOR ELECTRIC LIGHT SOURCES, IN GENERAL
    • H05B47/00—Circuit arrangements for operating light sources in general, i.e. where the type of light source is not relevant
    • H05B47/10—Controlling the light source
    • H05B47/175—Controlling the light source by remote control
    • H05B47/19—Controlling the light source by remote control via wireless transmission
    • 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
    • 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
    • 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
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
    • F24F2130/00—Control inputs relating to environmental factors not covered by group F24F2110/00
    • F24F2130/20—Sunlight
    • 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
    • Y02B20/00—Energy efficient lighting technologies, e.g. halogen lamps or gas discharge lamps
    • Y02B20/40—Control techniques providing energy savings, e.g. smart controller or presence detection

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  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Air Conditioning Control Device (AREA)

Abstract

The invention relates to application of an energy-saving control technology, in particular to an energy-saving control system based on an Internet of things cloud platform, which is easy to construct energy-saving emission-reducing reconstruction projects on existing buildings, is low in cost, and realizes effective energy saving while humanization and comfort are considered under different scenes; the system comprises an acquisition device, wherein the acquisition device comprises a temperature and humidity optical sensor and a human body induction sensor which are used for acquiring environmental temperature, humidity, illuminance and human body data; the power supply controller is used for on-off control and power consumption measurement of a power supply, and is connected with the power supply, the air conditioner and the lighting lamp; the gateway is used for acquiring the collected data and the measured values of the temperature and humidity optical sensor, the human body induction sensor and the power controller, and controlling the working state of the air conditioner and the lighting lamp by using the power controller, and is connected with the temperature and humidity optical sensor, the human body induction sensor and the power controller.

Description

Energy-saving control system based on Internet of things cloud platform
Technical Field
The invention relates to application of an energy-saving control technology, in particular to an energy-saving control system based on an Internet of things cloud platform.
Background
With the improvement of the requirements of energy conservation and emission reduction, especially when no one uses an air conditioner or a lighting facility to control and manage, a agenda is provided. Except for a central air conditioner, a single air conditioner and a multi-split air conditioner are adopted in a considerable number of buildings at present, and due to insufficient energy-saving consciousness of users of a plurality of large public buildings and office buildings, the air conditioner is still not turned off when no person is out; many college students turn on all lighting lights of the classroom even if one person is at night for self-study. At present, the market has few energy-saving management means on the aspect, and some problems exist even if the energy-saving management means exist. Because the indoor environment and personnel flow are really a very complicated dynamic process, it is difficult to have a unified standard to control the working state of the indoor electrical equipment so as to achieve the purpose of energy conservation. If the office owner leaves a meeting room for a short meeting in a short time, the air conditioner in the office works all the time when the owner wants to return to keep the indoor comfort, but the air conditioner is not turned on again after the owner returns, and the control of the electrical appliances under different scenes has great difficulty for an energy-saving system. Because the energy-saving control system is generally a reconstruction project on the original building, the wired connection of the equipment causes difficult construction and increases the cost; building a local data center causes problems such as an increase in additional energy consumption.
Disclosure of Invention
In order to solve the problem, the invention provides an energy-saving control system based on an internet of things cloud platform, so that the energy is effectively saved while the humanization and comfort degree are considered under different scenes, the construction of the transformation project for saving energy and reducing emission on the existing building is easy, the cost is low, and the energy is effectively saved.
In order to solve the technical problems, the technical scheme adopted by the invention is as follows: an energy-saving control system based on an Internet of things cloud platform comprises an acquisition device, wherein the acquisition device comprises a temperature and humidity optical sensor and a human body induction sensor which are used for acquiring ambient temperature, humidity, illuminance and human body data; the power supply controller is used for on-off control and power consumption measurement of the power supply, and is connected with the power supply, the air conditioner and the lighting lamp;
the gateway is used for acquiring the collected data and the measured values of the temperature and humidity optical sensor, the human body induction sensor and the power controller, and controlling the working states of the air conditioner and the lighting lamp by using the power controller, and is connected with the temperature and humidity optical sensor, the human body induction sensor and the power controller; the cloud platform is used for realizing data transmission, data analysis, data storage and machine learning and is connected with the gateway.
Preferably, the temperature and humidity optical sensor comprises a temperature and humidity sensor, an illumination sensor and a microcontroller, the temperature and humidity sensor and the illumination sensor are connected with the microcontroller, and the microcontroller controls data acquisition and reading of measurement data of the temperature and humidity sensor and the illumination sensor and transmits the read measurement data to the gateway in a wireless mode.
Preferably, the human body induction sensor comprises a pyroelectric sensor, a detection circuit and a first processor, the detection circuit is respectively connected with the first processors of the pyroelectric sensor, and the first processor is also connected with the temperature and humidity sensor and the illuminance sensor and collects data of the temperature and humidity sensor and the illuminance sensor for compensation.
Preferably, the gateway comprises a second processor, an infrared receiver, an infrared transmitter, an expander, a display and a key, wherein the infrared receiver, the infrared transmitter and the expander are respectively connected with the second processor, the display and the key are respectively connected with the expander, and the infrared transmitter and the infrared receiver are used for remote control of the air conditioner.
Preferably, the power supply controller comprises a measuring circuit, a wireless communication module and a power supply module, and the power supply module supplies power to the measuring circuit and the wireless communication module.
Preferably, the number of gateways is at least two.
The energy-saving control system based on the cloud platform of the Internet of things can achieve the following beneficial effects: according to the invention, through the use of the Internet of things cloud platform, a local data center is not required to be constructed, and the equipment can be controlled according to time intervals or requirements, so that energy waste caused by the phenomena that the temperature is suitable for not turning off the air conditioner, the lamp is not turned off when people walk, and the like is avoided, energy is saved, the cost is reduced, indoor scenes are continuously enriched through machine learning in cloud service, the control of an air conditioning system and a lighting system is efficiently realized, and the energy saving rate is improved.
Drawings
Fig. 1 is an overall structure diagram of an energy-saving control system based on an internet of things cloud platform in an embodiment provided by the invention;
FIG. 2 is a functional block diagram of a cloud platform according to an embodiment of the present invention;
fig. 3 is a block diagram of a temperature and humidity optical sensor according to an embodiment of the present disclosure;
fig. 4 is a flowchart illustrating a working process of the temperature/humidity optical sensor according to an embodiment of the present invention;
FIG. 5 is a schematic diagram of the connection of the human body sensor according to an embodiment of the invention;
FIG. 6 is a flowchart illustrating operation of a body-sensing sensor according to an embodiment of the present invention;
fig. 7 is a schematic diagram of a hardware structure of a gateway in an embodiment of the present invention;
FIG. 8 is a block diagram of a software system for a gateway in an embodiment of the present invention;
FIG. 9 is a schematic diagram of a power controller according to an embodiment of the present invention;
FIG. 10 is a line drawing of power usage before and after installation of a system in accordance with an embodiment of the present invention.
Detailed Description
The invention is further described below with reference to the accompanying drawings. The following examples are only for illustrating the technical solutions of the present invention more clearly, and the protection scope of the present invention is not limited thereby.
Example 1
Referring to fig. 1, the embodiment provides an energy-saving control system based on an internet of things cloud platform, which includes an acquisition device, a power controller, a gateway and a cloud platform. The collecting device comprises a temperature and humidity optical sensor and a human body induction sensor, wherein the temperature and humidity optical sensor is used for collecting parameters such as indoor temperature, humidity and illuminance, a temperature and humidity measured value provides a control basis for air conditioner control, and the illuminance provides a control basis for illumination control; the human body induction sensor is used for measuring whether a person exists in the induction area or not and providing a control basis for lighting control. The power supply controller is a wireless one-way/three-way power supply controller and is mainly used for on-off control of a power supply and measurement of power consumption. The gateway is an internet of things gateway, is an intelligent energy-saving control gateway, is connected with a temperature and humidity optical sensor, a human body induction sensor and a power supply controller, acquires the acquired data and measured values of the temperature and humidity optical sensor, the human body induction sensor and the power supply controller, and controls the working states of the air conditioner and the lighting lamp by using the power supply controller. The cloud platform is an internet of things cloud platform, is connected with the gateway, and can realize data transmission, data analysis, data storage and machine learning.
The temperature and humidity optical sensors and the human body induction sensors are arranged indoors, and a plurality of temperature and humidity optical sensors and human body induction sensors can be arranged in the same room according to the size and the actual condition of the room, so that the accuracy of measured data is ensured. The power supply controller is arranged at a room switch or a socket and is convenient to control. Meanwhile, according to the actual situation, when one gateway cannot meet the requirement, the number of gateways can be increased, that is, the number of gateways can be greater than or equal to 2. Therefore, the temperature and humidity optical sensor and the human body induction sensor transmit collected data to the gateway, the gateway transmits the data to the cloud platform, the cloud platform stores and analyzes the data, a processing result is sent to the gateway, and the gateway controls the working state of the air conditioner and the lighting lamp in cooperation with the power supply controller according to the result. If no person is in the room, the air conditioner and the lamp are turned off; if the number of people in the room is large and the temperature is high, the lamp still keeps on, and the temperature of the air conditioner is reduced.
Referring to fig. 2, the cloud platform is composed of two parts: the system comprises an Internet of things component and a cloud service. The working mode of the Internet of things component is that the sensor and the controller are connected to the cloud end through the gateway, and after the device is connected safely, the device message is routed to the cloud service. It also stores IoT data for querying the data and generating analytics and machine learning models.
The MQTT proxy provides a security mechanism for transactions and applications to publish and receive messages to and from each other. When publishing and subscribing, there are three operation approaches: MQTT protocol; using MQTT protocol through WebSocket; the HTTP REST interface.
Internet of things analytics is used to collect large amounts of device data, process messages and store them. The data can then be queried and complex analyses run on it. And data visualization is realized through the front-end application.
The control method of air conditioning control and lighting control is realized through machine learning in cloud service, and energy consumption is reduced while the comfort of people is improved. Reinforcement learning is a large type of reinforcement learning based on the interaction of the machine learning algorithm with the environment, namely learning how to map the scene to the action to obtain the maximum value reward signal. The process of reinforcement learning to solve the problem is simply a process that an Agent takes Action (Action) to change its State (State) to obtain a return value (Reward) and continuously interacts with the Environment (Environment). Reinforcement learning includes a number of different algorithms, and the merry monte carlo method is an algorithm that does not require a model but only experience, i.e., obtains states, actions, and rewards from online or simulated interactions with the environment. The controlled objects in this embodiment are air conditioners and lighting devices. A change in the state of the environment needs to be effected by a change in the state of the controlled object. The controlled object, namely the controlled device such as an air conditioning system, a lighting system and the like selects the device action according to the current environment state so as to change the device state.
Example 2
Referring to fig. 3, the present embodiment provides an energy saving control system based on an internet of things cloud platform, which is different from the previous embodiment in that: the temperature and humidity light sensor comprises a temperature and humidity sensor, an illumination sensor and a microcontroller, and the temperature and humidity sensor and the illumination sensor are connected with the microcontroller. The temperature and humidity sensor and the illuminance sensor are directly powered by two No. 5 batteries through I2The C bus is connected with a 433MHz/2.4GHz wireless micro-controller, and the working flows of the temperature and humidity sensor and the illuminance sensor are shown in FIG. 4. The microcontroller passes through I2The C bus controls data acquisition of the sensor and reading of the measurement data, and then the read measurement data is transmitted to the gateway equipment which is connected with the C bus in a wireless mode. It has battery power supply and ultra-low power consumption; wireless low power consumption Bluetooth/433 MHz communication; measuring ambient light illumination; ambient temperature/humidity measurement; magnetic attraction type convenient installation and the like.
In this embodiment, the temperature and humidity optical sensor is selected as HDC 1000. HDC1000 is a digital humidity sensor with an integrated temperature sensor that can provide excellent measurement accuracy with ultra-low power consumption. The device is based on a new type of capacitive sensor for measuring humidity. Both the humidity and temperature sensors are factory calibrated. Innovative WLCSP (wafer level chip scale package) simplifies circuit board design by virtue of ultra-compact packaging, with its sensing element located at the bottom of the device, which can protect HDC1000 from dust, dirt, and other environmental contaminants, thereby improving durability. The HDC1000 can be detected in the whole temperature range of-40 ℃ to +125 ℃, the temperature precision is +/-0.2 ℃, and the Relative Humidity (RH) working range is 0% to 100%.
The illuminance sensor is an ambient light sensor with the model of OPT 3001. The OPT3001 sensor is used to measure the density of visible light. The spectral response of the sensor closely matches the visual response of the human eye with a high Infrared (IR) cut-off. The OPT3001 is a single chip light meter that measures light intensity as the human eye does. The OPT3001 device has both a precise spectral response and a strong IR blocking function, and thus can accurately measure light intensity as the human eye without being affected by a light source. A strong IR blocking function also helps to maintain high accuracy for industrial designs that require sensors to be mounted under dark glass for aesthetic reasons. The OPT3001 is designed specifically for the construction of a light-based system for human eye-like experience, and is a preferred and ideal replacement for photodiodes, photoresistors, or other ambient light sensors with low eye-matching and poor infrared blocking capabilities. The measuring range can reach 0.01lux to 83klux, and a full-range setting function is arranged in the full-range measuring device, and the full-range measuring range does not need to be manually selected. This function allows light measurements to be made over a 23-bit effective dynamic range. Digital operation is flexible for system integration. The measurement can be either continuous or single triggered. The control and interrupt system may operate autonomously, allowing the processor to enter a sleep state while the sensor will search for the appropriate wake event and report through the interrupt pin. The digital output is reported through two-wire serial ports compatible with IPC and SMBus. The OPT3001 has both low power consumption and low power supply voltage characteristics, and can extend the battery life of the battery power supply system.
The model of the microcontroller is CC2650MODA, and the device is a wireless Microcontroller (MCU) module and is mainly suitable for low-power Bluetooth application. The CC2650MODA device is also suitable for ZigBee and 6LoWPAN and ZigBee RF4CE remote control applications. The module is based on a SimpleLink CC2650 wireless MCU, and belongs to an economical and efficient type ultralow-power-consumption 2.4GHz RF device of a CC26xx series. The high-power-consumption button battery has extremely low active RF and MCU current and low power consumption mode current consumption, can ensure excellent service life of the battery, and is suitable for being powered by a small button battery and used in energy collection type application. The CC2650MODA module contains a 32-bit ARM Cortex-M3 processor (operating at 48MHz with the main processor) and has a rich set of peripheral functions, including a unique ultra-low power sensor controller. This sensor controller is well suited for interfacing with external sensors or for autonomous collection of analog and digital data with the rest of the system in a sleep mode. Therefore, CC2650MODA devices are becoming an ideal choice for a variety of applications in industrial, consumer electronics, and medical products.
Further, the human body induction sensor comprises a pyroelectric sensor, a detection circuit and a first processor, the detection circuit is connected with the pyroelectric sensor and the first processor, and the first processor is connected with the temperature and humidity sensor and the illuminance sensor and collects data of the temperature and humidity sensor and the illuminance sensor for compensation.
The concrete connection mode is as follows: the two comparators are connected in parallel, then connected in series with an operational amplifier, then connected in parallel with a 16-bit AD converter, then connected in series with an operational amplifier, and then connected with an ESD protection circuit to form a detection circuit. And finally, the ESD protection circuit is connected with the first processor, and the pyroelectric sensor is connected with the operational amplifier.
In this embodiment, the model of the 16-bit AD converter is AD 7705/06. The AD7705/06 chip is an A/D converter with a self-correcting function. The digital analog converter is internally composed of a multi-path analog switch, a buffer, a Programmable Gain Amplifier (PGA), a sigma-delta modulator, a digital filter, a reference voltage input, a clock circuit and a serial interface. The serial interface includes register group comprising communication register, setting register, clock register, data output register, zero point correcting register, full stroke correcting register, etc.
ESD means "electrostatic discharge", and an ESD protection circuit is used to prevent a circuit device from operating in a certain voltage, current and power consumption limited range, and a large amount of accumulated static charges can generate high-voltage discharge under proper conditions, and the electrostatic discharge is transmitted instantaneously through a high voltage of a device lead, so that an oxide layer can be disconnected, and the device can malfunction. The first processor is an ARM processor and is mainly used for carrying a 2.4GHz Bluetooth communication module or a 433MHz communication module so as to transmit wireless signals.
It should be noted that the pyroelectric sensor is applied to an air conditioner control and lighting control feedback control system. The human body induction system is mainly human-movingThe monitoring includes fast and slow movements. However, due to the physical characteristics of the pyroelectric sensing sensor itself, it is also detected when not being operated by human (rapid environmental changes such as light or temperature changes); or not detected in the case of a small amplitude of human motion. Referring to fig. 5-6, to avoid these situations, it requires only one pyroelectric sensor and some simple peripheral devices to constitute the detection circuit. The temperature and humidity sensor can collect data from the optical sensor and the temperature and humidity to compensate, so that a better detection effect is obtained. With wavelet transforms, different types of actions have their own characteristics in the time-frequency domain, allowing for efficient action detection and avoiding false triggers. With these features, the correct application of machine learning or artificial intelligence will seek a new approach for new intelligent human motion sensors. These motion detections can be adapted to different environments. For the situations of people false alarm caused by high environmental temperature, no people false alarm caused by long-time standing and the like, the measurement data of the pyroelectric sensor can be obtained through an AD converter, FFT (fast Fourier transform) and DWT (discrete wavelet transform) are used for transforming the data, and then machine learning is used for classifying the transformed data so as to distinguish different behaviors of people and eliminate interference signals. Analysis of the results distinguished by machine learning gave T1, T2 and CTHAnd (3) judging whether the unmanned state is caused by the fact that the human is still according to the values and the flow.
Example 3
Referring to fig. 7 to 8, the present embodiment provides an energy saving control system based on an internet of things cloud platform, which is different from the previous embodiment in that: the gateway comprises a second processor, an infrared receiver, an infrared transmitter, an expander, a display and a key, wherein the infrared receiver, the infrared transmitter and the expander are connected with the second processor, the display and the key are connected with the expander, and the infrared transmitter and the infrared receiver are used for remote control of the air conditioner. The gateway is an energy-saving control gateway and adopts the architecture of the gateway of the Internet of things.
In this embodiment, the second processor model is Cortex-A8, and the Cortex-A8 processor is the first super model of ARMScalar processor with techniques for increasing code density and performance, NEON for multimedia and signal processingTMTechniques, and Jazelle for efficiently supporting pre-compiled and just-in-time compiled Java and other bytecode languages&reg is the highest performance, most power efficient processor developed by ARM since many years. The speed of the Cortex-A8 processor is in the range of 600MHz to over 1GHz, and the Cortex-A8 processor can meet the requirements of mobile equipment needing to work under 300mW and with optimized power consumption; and meet the requirements of consumer applications that require performance optimization of 2000Dhrystone MIPS. The hardware thereon also includes a memory RAM: DDR3L SDRAM 512MB or more; I/O interface: 4 paths of RS-485 outputs; 1 path of gigabit Ethernet interface; 1 path of USB OTG; 4-way isolated DO output; and 1-path RS-232 serial port output.
The expander is an SPI bus GPZO expander which is integrated to miniPCIE by 1-way USB and UART and is used for expanding a 4G/BLE/WiFi/NB-IoT/433MHz wireless module. The display is a dot matrix industrial LCD, the model number is LCD1602, and the key is composed of 5 light touch keys.
The gateway software system provides an internet of things gateway service model of an operation software stack based on OSGi:
designing and realizing an MQTT message transparent transmission mode;
starting and operating the system: U-Boot, Linux (Linux distribution of Debian);
application container or runtime environment: eclipse Equisox or Eclipse Concierge (OSGi runtime);
communication connection: the API of the software platform is used for connecting gateway I/O (such as serial, RS-485, BLE, GPIO and the like) and supporting various field protocols which CAN be used for connecting equipment, such as MODBUS, CAN bus and the like;
network management: high-level network and routing functions based on 4G, Wi-Fi, Ethernet and the like are supported;
data management and messaging: the MQTT message transmission solution is realized from the bottom layer, so that the application program running on the gateway can communicate with the cloud platform in a transparent transmission mode without knowing a specific network interface and the packet format of the data of the Internet of things. More message transmission protocols can be supported through a built-in Apache Camel message routing engine;
and (3) edge calculation: edge intelligent service is provided nearby through an open platform integrating network, computing, storage and application core capabilities. The operation is dispersed on the gateway close to the data source for processing, the workload of the cloud platform is shared, the data do not need to be transmitted back to the cloud end for processing in the long run, the real-time performance is better, the efficiency is higher, the delay is shortest, and even if no network exists, the cloud end cannot be accessed, the 'ground-attaching' calculation of the edge equipment cannot be hindered. The system has the functions of collecting edge data, intelligent computing capability and operable decision feedback;
remote management: the remote management solution based on the MQTT protocol is provided, and besides software for controlling (installing, updating and modifying settings) operation, the remote management solution also allows the overall operation condition of the gateway of the Internet of things to be monitored;
equipment access: the edge computing of the Internet of things provides a multi-language device access SDK to enable the device to easily access an edge computing node;
and (3) rule calculation: the local management, linkage and control of the multiple devices can be realized by dragging the visual components, and each person can become a programmer facing the devices and needing no programming;
and function calculation: function computation is a runtime framework, following an event-driven model;
message routing: the capability of providing message routing is provided by the edge calculation of the Internet of things;
and (3) continuous transmission in a broken network: the edge compute nodes provide data recovery capability in the event of a network outage or weak network.
The energy-saving control gateway is an important component of an ecosystem of the Internet of things. The Internet of things application program safely and effectively accesses data of the sensors and the equipment through the Internet of things gateway, enables the data to become useful information required by people to be transmitted, and is a bridge between the sensors and the equipment and the Internet of things cloud platform. The energy-saving control gateway has an internet of things gateway with edge computing capability, so that the energy-saving control gateway can provide various interfaces for data communication with sensors and equipment at the bottom layer, store, process and analyze the acquired data, and finally transmit valuable data to an internet of things cloud platform.
Further, the power supply controller is a one-way/three-way power supply controller and can realize wireless communication, and comprises a measuring circuit, a wireless communication module and a power supply module, wherein the power supply module supplies power to the measuring circuit and the wireless communication module. The communication module mainly comprises a 433MHz wireless module, a 2.4GHzBLE module and a wired serial module. Referring to fig. 9, an alternating current is converted into a voltage signal by a current detecting resistor; and dividing the alternating voltage into the acquisition range of the AD converter through the voltage dividing resistor. And then the two signals are transmitted to two paths of ADCs on the MCU for processing. The two SD24ADC converters acquire the conversion synchronously. The sampling time can be compensated for, which function is used to correct the phase shift between the voltage and current signals due to the external analog circuit.
The software design comprises the following parts: the system comprises a system setting and initialization module, a main loop, a communication protocol and command processing module, a nonvolatile parameter presetting and operation module, an ADC (analog to digital converter) setting module, a parameter initialization module, a data acquisition processing module, a data result processing reading interface, a bottom layer operation module and the like.
Referring to fig. 10, in the test of the present system, a classroom of a university was selected as a test object, and the power consumption in the classroom before and after the system was installed was compared. As can be seen from the power consumption line graph, the power consumption is obviously reduced after the system is installed compared with that before the system is installed. The electricity consumption quantity before the system installation basically increases before 21 hours, and the electricity consumption quantity after the system installation and after a certain time between 18 hours and 21 hours tends to be stable and constant. According to the power consumption line graph after the system is installed and by combining with the analysis of the field condition, the energy saving is caused by the reasons that the light intensity reaches the specified value and the light is not turned off, the light is not turned off when people walk and the like in each time period.
During the operation of the system, the accumulated energy saving rate of the classroom is 104kW · h, the total power consumption is 375kW · h, and for the classroom, the comprehensive energy saving rate of the system is as follows:
Figure BDA0003344589990000101
the system can control the equipment according to time intervals or requirements, avoids energy waste caused by the phenomena that the air conditioner is not turned off due to proper temperature, the lamp is not turned off when people walk, and the like, and realizes energy conservation. The comprehensive energy-saving rate realized by the system reaches the expected target and can realize the energy-saving rate of 15-20% or more.
The above is only a preferred embodiment of the present invention, and it should be noted that, for those skilled in the art, several modifications and variations can be made without departing from the technical principle of the present invention, and these modifications and variations should also be regarded as the protection scope of the present invention.

Claims (6)

1. The utility model provides an energy-saving control system based on thing networking cloud platform which characterized in that: the system comprises an acquisition device, wherein the acquisition device comprises a temperature and humidity optical sensor and a human body induction sensor which are used for acquiring environmental temperature, humidity, illuminance and human body data; the power supply controller is used for on-off control and power consumption measurement of a power supply, and is connected with the power supply, the air conditioner and the lighting lamp;
the gateway is used for acquiring the collected data and the measured values of the temperature and humidity optical sensor, the human body induction sensor and the power controller, and controlling the working state of the air conditioner and the lighting lamp by using the power controller, and is connected with the temperature and humidity optical sensor, the human body induction sensor and the power controller; the cloud platform is used for realizing data transmission, data analysis, data storage and machine learning and is connected with the gateway.
2. The energy-saving control system based on the cloud platform of the internet of things according to claim 1, characterized in that: the temperature and humidity light sensor comprises a temperature and humidity sensor, an illumination sensor and a microcontroller, the temperature and humidity sensor and the illumination sensor are connected with the microcontroller, the microcontroller controls data acquisition and measurement data reading of the temperature and humidity sensor and the illumination sensor, and the read measurement data are transmitted to the gateway in a wireless mode.
3. The energy-saving control system based on the cloud platform of the internet of things according to claim 2, characterized in that: the human body induction sensor comprises a pyroelectric sensor, a detection circuit and a first processor, wherein the detection circuit is respectively connected with the first processors of the pyroelectric sensor, and the first processor is also connected with the temperature and humidity sensor and the illuminance sensor and collects data of the temperature and humidity sensor and the illuminance sensor for compensation.
4. The energy-saving control system based on the cloud platform of the internet of things according to claim 1, characterized in that: the gateway comprises a second processor, an infrared receiver, an infrared transmitter, an expander, a display and a key, wherein the infrared receiver, the infrared transmitter and the expander are respectively connected with the second processor, the display and the key are respectively connected with the expander, and the infrared transmitter and the infrared receiver are used for remote control of the air conditioner.
5. The energy-saving control system based on the cloud platform of the internet of things according to claim 4, wherein: the power supply controller comprises a measuring circuit, a wireless communication module and a power supply module, wherein the power supply module supplies power to the measuring circuit and the wireless communication module.
6. The energy-saving control system based on the cloud platform of the internet of things according to claim 1, characterized in that: the number of the gateways is at least two.
CN202111319105.XA 2021-11-09 2021-11-09 Energy-saving control system based on Internet of things cloud platform Pending CN114096044A (en)

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN115190146A (en) * 2022-06-28 2022-10-14 慧之安信息技术股份有限公司 Sports place management method based on Internet of things platform

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN115190146A (en) * 2022-06-28 2022-10-14 慧之安信息技术股份有限公司 Sports place management method based on Internet of things platform
CN115190146B (en) * 2022-06-28 2023-09-15 慧之安信息技术股份有限公司 Sport management method based on Internet of things platform

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