WO2018140330A1 - Systèmes et procédés de fourniture de gestion de ventilation à la demande - Google Patents

Systèmes et procédés de fourniture de gestion de ventilation à la demande Download PDF

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Publication number
WO2018140330A1
WO2018140330A1 PCT/US2018/014600 US2018014600W WO2018140330A1 WO 2018140330 A1 WO2018140330 A1 WO 2018140330A1 US 2018014600 W US2018014600 W US 2018014600W WO 2018140330 A1 WO2018140330 A1 WO 2018140330A1
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WO
WIPO (PCT)
Prior art keywords
ventilator
intelligent gateway
air
adjustment assembly
temperature adjustment
Prior art date
Application number
PCT/US2018/014600
Other languages
English (en)
Inventor
Salvatore D'AURIA
Matthew Harold TAYLOR
Jonah Peskin
Joseph Richard MCGOWAN
Original Assignee
Ventacity Systems Inc.
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Ventacity Systems Inc. filed Critical Ventacity Systems Inc.
Publication of WO2018140330A1 publication Critical patent/WO2018140330A1/fr

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Classifications

    • 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
    • F24F11/0001—Control or safety arrangements for ventilation
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
    • F24F1/00—Room units for air-conditioning, e.g. separate or self-contained units or units receiving primary air from a central station
    • F24F1/0003—Room units for air-conditioning, e.g. separate or self-contained units or units receiving primary air from a central station characterised by a split arrangement, wherein parts of the air-conditioning system, e.g. evaporator and condenser, are in separately located units
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
    • F24F11/00—Control or safety arrangements
    • F24F11/50—Control or safety arrangements characterised by user interfaces or communication
    • F24F11/54—Control or safety arrangements characterised by user interfaces or communication using one central controller connected to several sub-controllers
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
    • F24F11/00—Control or safety arrangements
    • F24F11/62—Control or safety arrangements characterised by the type of control or by internal processing, e.g. using fuzzy logic, adaptive control or estimation of values
    • F24F11/63—Electronic processing
    • F24F11/65—Electronic processing for selecting an operating mode
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
    • F24F12/00—Use of energy recovery systems in air conditioning, ventilation or screening
    • F24F12/001—Use of energy recovery systems in air conditioning, ventilation or screening with heat-exchange between supplied and exhausted air
    • F24F12/006—Use of energy recovery systems in air conditioning, ventilation or screening with heat-exchange between supplied and exhausted air using an air-to-air heat exchanger
    • 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]
    • Y02B30/56—Heat recovery units
    • 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

Definitions

  • the present disclosure relates to sentient systems and methods for providing on-demand ventilation management using, for example, heat recovery ventilation (HRV) and/or energy recovery ventilation (ERV).
  • HRV heat recovery ventilation
  • ERP energy recovery ventilation
  • HVAC heating, ventilation, and cooling
  • HVAC systems are often coupled to centralized air systems having air ducts that are used to distribute conditioned air from the HVAC systems to the rooms of a building. This can often leave some of the rooms too hot while leaving other areas too cold.
  • the HVAC systems therefore require a large amount of energy to provide conditioned fresh air to the entirety of the building and to over-condition the fresh air (i.e., heat the fresh air to a temperature well-above a desired temperature or cool the fresh air to a temperature well-below the desired temperature) to ensure that all of the rooms are at the desired temperature.
  • these systems provide conditioned air to the entirety of a building even if only a small portion of the building is occupied, wasting large amounts of energy to heat and/or cool rooms that are unoccupied.
  • combined HVAC systems coupled to centralized air systems are inefficient and ineffective, requiring large amounts of energy to provide conditioned air to an entire building and failing to recapture the energy used to heat the stale air during ventilation.
  • FIG. 1 is a diagram showing a building having an air processing system that includes a ventilator separated from a heating/cooling system configured in accordance with aspects of the disclosure.
  • FIG. 2 is a diagram showing an air processing system capable of selectively and intelligently heating, cooling, and ventilating different parts of a building configured in accordance with aspects of the disclosure.
  • FIG. 3 is a diagram showing a network of buildings that each have an air processing system configured in accordance with aspects of the disclosure.
  • FIG. 4 is a method of operating an air processing system in accordance with aspects of the disclosure.
  • ventilation units can be equipped with intelligent gateway technology, providing secure, round-the-clock remote performance monitoring and fault alerts via an automatically configured mobile internet connection.
  • the ventilation units are able to independently monitor a variety of comfort-related conditions, including indoor/outdoor temperature, relative humidity, and occupancy status.
  • the intelligent gateway is configured to connect with sensors to automatically detect and reduce unhealthy levels of CO2 or volatile organic compounds (VOCs), to maintain a healthy indoor environment.
  • VOCs volatile organic compounds
  • FIG. 1 is a diagram of a building 4 having an air processing system 2 that includes a dedicated outdoor air ventilation system 9 separated from a temperature adjustment assembly.
  • the temperature adjustment assembly is a heating/cooling assembly 12.
  • the air ventilation system 9 and the heating/cooling assembly 12 work together to condition outside air 6 taken in from outside of the building 4 in order to regulate and control a variety of comfort-related conditions of indoor air 8 within the building 4, including temperature, relative humidity, and occupancy status.
  • the air ventilation system 9 includes a ventilator 10 configured to take in fresh air 17 from the outside air 6 and expel stale return stale air 19 into the outside air 6.
  • the heating/cooling assembly 12 includes an indoor unit 14 coupled to a heat pump 16, where the indoor unit 14 is configured to expel heated/cooled air 18 while the heat pump 16 expels excess heat from the indoor unit 14.
  • the ventilator 10 is depicted as a roof top unit configured to be positioned on the roof of the building 4 while the heat pump 16 is depicted as being positioned on the ground adjacent to the building 4.
  • the heat pump 16 may also be configured as a roof top unit, an integrated building unit, an attached unit or other such configuration as may be understood by one skilled in the art.
  • the air ventilation system 9 is configured to ventilate the building 4 in order to aid in adjusting the temperature, humidity, pressure, and composition of the indoor air 8.
  • the ventilator 10 takes in fresh air 17 from the outside air 6, conditions the fresh air 17 in a heat exchanger 1 1 to modulate the temperature of the fresh air intake to approach the temperature of the indoor building air 8 prior to circulating conditioned fresh air 20 within the building 4.
  • the air ventilation system 9 flows stale return air 22 from the indoor air 8 through the heat exchanger 1 1 in the counterflow heat exchange with the incoming fresh air 17 to condition the incoming air to approach the temperature of the indoor building air 8 prior to expelling the stale air 19 outside of the building 4.
  • the ventilator 10 includes the heat exchanger 1 1 configured to recover heat from the stale return air 22 and to condition the fresh air 17 using the recovered heat so that the conditioned fresh air 20 emitted into the building 4 is at or near the desired temperature and also activates the separate heating/cooling assembly 12.
  • the heat exchanger 1 1 may be an aluminum countercurrent or counterflow heat exchanger having air channels through which air travels.
  • the ventilator 10 and heat exchanger 1 1 are configured such that the fresh air 17 flows through the some of the air channels in a first direction while the stale return air 22 flows through other air channels in an opposing second direction.
  • thin aluminum walls that separate adjacent air channels conduct heat between the adjacent air channels. In this way, thermal energy previously used to condition the stale return air 22 is recovered by the heat exchanger 1 1 and used to condition the fresh air 17 (e.g., heat up or cool down) before it enters the building 4.
  • the conditioned fresh air 20 emitted into the building is at or near the temperature of the stale return air 22 (i.e., the desired temperature of the indoor air 8) with little to no energy being used to heat (or cool) the fresh air 17.
  • the heating/cooling assembly 12 may be used to maintain the temperature of the indoor air 8.
  • the conditioned fresh air 20 emitted into the building 4 is already at or near the desired temperature, not much heating (or cooling) is required from the assembly 12 to maintain the desired temperature, thereby reducing the amount of energy required to maintain the temperature of the indoor air 8 while the air ventilation system 9 circulates fresh air and expels stale air.
  • the dedicated outdoor air ventilation system include heat recovery ventilation (HRV) and/or energy recovery ventilation (ERV), having countercurrent heat exchangers that are up to 93% efficient, allowing the delivery of fresh outdoor air within a comfortable few degrees of room temperature, reducing heating and cooling loads and heating, ventilation, air conditioning, and refrigeration (HVACR) equipment energy requirements by up to 50%.
  • HRV heat recovery ventilation
  • ERP energy recovery ventilation
  • the system includes an intelligent dedicated outdoor air system (DOAS) (ventilation system) with ultra-efficient heat recovery integrated with a smart analytic optimization engine platform that learns and responds to unique thermal characteristics of the building, the indoor air quality (IAG) characteristics in the building, occupancy, other factors including its relationship with the dynamic external environment.
  • DOAS dedicated outdoor air system
  • IAG indoor air quality
  • This system can further include an integrated set of communication options including cellular data, WiFi, Bluetooth, usb, Ethernet, modbus, canbus and BACNet.
  • the system is configured to create a balanced/neutral air pressure within the building and can log information on essentially all the outside air that enters the building and all the inside air that exits the building.
  • the system includes a useful dataset of knowledge that can provide important insights into the building performance and ways to optimize the performance.
  • the system allows buildings to be designed that reduce energy use by 50% by separating ventilation from air conditioning and applying heat recovery technology along with heat pumps to a building.
  • a UL, CSA and passive house certified counterflow HRV with an intelligent dedicated outdoor air system combine ventilation and heat recovery to provide health, comfort and energy savings advantages.
  • a split ventilation and heating/air conditioning system provides a more energy efficient system.
  • a dedicated outdoor air system (DOAS) supplies only the outdoor ventilation air necessary to maintain high ventilation standards, while independent heating and cooling coils inside the building take care of temperature conditioning the space. Since a smaller volume of air needs to be moved in a split system (reduced load), a smaller capacity air handling unit can be used, reducing the fan energy consumed. And, since the amount of outside air introduced can be modulated for demand, less air is needed for heating and cooling, resulting in further energy consumption savings.
  • DOAS dedicated outdoor air system
  • the air processing system 2 includes a control hub operatively coupled to the air ventilation system 9 and the heating/cooling assembly 12.
  • FIG. 2 is a diagram of the air processing system 2 having an intelligent gateway (IG) 24 configured to operate as the control hub and to coordinate the ventilation, heating, and cooling of a building.
  • the intelligent gateway 24 is a robust and reliable Linux-based computer that is mountable to a DIN rail within a ventilator 10.
  • the intelligent gateway 24 includes system memory and storage, power management systems, and at least one processor.
  • each of the ventilators 10 and heating/cooling assemblies 12 is coupled to a single intelligent gateway 24.
  • the single intelligent gateway 24 is capable of monitoring the performance of each ventilator 10 and heating/cooling assembly 12 independently in order to control and monitor the air quality and temperature of a building.
  • Each of the ventilators 10 and heating/cooling assemblies 12 may include one or more sensors 36 that are used to measure and record various comfort-related qualities of the indoor air 8 and the outdoor air 6 (FIG. 1 ), such as the temperature, pressure, humidity, quantities of C0 2 , CO, and/or volatile organic compounds present in the air, and other qualities.
  • the air processing system 2 may also include additional sensors 36 not included with a heating/cooling assembly 12.
  • the sensor data is provided to the intelligent gateway 24 and the intelligent gateway 24 evaluates the sensor data to determine if the current quality of air within the building is acceptable. After evaluating the sensor data, the intelligent gateway 24 may determine that an adjustment to the indoor air needs to be made in order to satisfy quality and temperature requirements.
  • a given building may include multiple heating/cooling assemblies 12 located in various rooms and areas where the indoor unit 14 for each of the heating/cooling assemblies 12 includes a sensor 36 configured to measure the temperature of the air surrounding the unit 14 (e.g., a thermometer).
  • the measured temperature values are transmitted to the intelligent gateway 24 and the intelligent gateway 24 compares the temperatures values to a predetermined temperature value indicative of a desired temperature. If one of the measured temperature values is significantly hotter than the predetermined temperature value, the intelligent gateway 24 may send a signal to the corresponding heating/cooling assembly 12 to increase the cooling output (or decrease the heating output) of the assembly 12 so as to decrease the temperature of the surrounding air. Conversely, if one of the measured temperature values is significantly colder than the desired temperature, the intelligent gateway 24 may send a signal to the corresponding assembly 12 to increase the heating output (or decrease the cooling output) of the assembly 12 so as to increase the temperature of the surrounding air.
  • the intelligent gateway 24 may act as a general purpose Internet Protocol (IP) router for Local Area Networks (LAN), Wireless Local Area Networks (WLAN), and/or Wide Area Networks (WAN) and may have configurable firewall, network address translation, and port forwarding capabilities. In this way, the intelligent gateway 24 is able to monitor and control additional ventilators 10 and heating/cooling assemblies 12.
  • IP Internet Protocol
  • the intelligent gateway 24, ventilators 10, and heating/cooling assemblies 12 include communication circuitry that allows for communication between the intelligent gateway 24, ventilators 10, and assemblies 12.
  • the intelligent gateway 24, ventilators 10, and the assemblies 12 each include antennas 32 that enable the establishment of wireless connections 34 between the intelligent gateway 24 and the ventilators 10 and/or assemblies 12.
  • the intelligent gateway 24 may establish a WLAN (e.g., a Wi-Fi network) over which the intelligent gateway 24, ventilators 10, and assemblies 12 can communicate.
  • the wireless connections 34 may be Bluetooth connections that enable direct wireless communication between the intelligent gateway 24 and the ventilators 10/assemblies 12.
  • the intelligent gateway 24 may communicate via wired connections 26.
  • the wired connections 26 may be Ethernet connections and the intelligent gateway 24, ventilators 10, and heating/cooling assemblies 12 may each include Ethernet connector ports that receive Ethernet cables.
  • the air processing system 2 may also include an Ethernet switch 28 coupled between the intelligent gateway 24 and the various components and that is configured to receive multiple Ethernet cables so that the intelligent gateway 24 is able to communicate with multiple components via wired connections 26 simultaneously.
  • the Ethernet switch may also be used to couple additional networks 30 to the intelligent gateway 24. These additional networks may include private Building Automation and Control Networks (BACNet) or IP networks, as examples.
  • BACNet Private Building Automation and Control Networks
  • IP networks as examples.
  • the Ethernet switch 28 may be coupled to a private BACNet that enables the intelligent gateway 24 to interface with Building Management Systems and to interface with third-party HVAC components (e.g., other temperature adjustment assemblies) that are incapable of directly communicating with the intelligent gateway 24.
  • An IP network connected to the Ethernet switch 28 may be configured as a WLAN that enables users to wirelessly connect to the IP network and to allow those users to access the Internet or local intranet.
  • the ventilators 10 and/or heating/cooling assemblies 12 may establish wireless connections 32 with the WLAN and communicate with the intelligent gateway 24 via this additional network 30 in lieu of using the antenna 32 included in the intelligent gateway 24.
  • the intelligent gateway 24, the ventilators 10, and the heating/cooling assemblies 12 may communicate using secure Modbus Transmission Control Protocol (TCP).
  • TCP Modbus Transmission Control Protocol
  • Modbus TCP is a common communications protocol used in industrial control systems and designed to link a controller to various sensors and components.
  • traditional Modbus TCP is unencrypted and communications between two components over a public network (e.g., a public IP network) using Modbus TCP is intermingled with other traffic on the network such that all nodes on the network can see the Modbus TCP traffic.
  • a public network e.g., a public IP network
  • Modbus TCP traffic is susceptible to snooping and tampering when transmitted via a public and unsecured network, potentially resulting in the loss of data privacy and exposing the system to fraudulent traffic.
  • the air processing system 2 may communicate using Secure Modbus TCP, which utilizes public key encryption and certificates to encrypt the data.
  • Secure Modbus TCP utilizes public key encryption and certificates to encrypt the data.
  • any traffic between the intelligent gateway 24, the ventilators 10 and the heating/cooling assemblies 12 that is intermingled with other traffic on a Wi-Fi and/or public Ethernet network remains encrypted and secured, effectively establishing a virtual private channel between the system components. This ensures that the data remains secure and the air processing system 2 is not susceptible to fraudulent traffic.
  • the intelligent gateway 24 may also include various expansion buses and ports capable of coupling the intelligent gateway 24 to additional components that aid in increasing the communication, processing, and storage capabilities of the intelligent gateway 24.
  • the intelligent gateway 24 includes a microSD port that enables expandable external data storage and may be used to upload new software and firmware to the intelligent gateway 24.
  • the intelligent gateway 24 may also include one or more USB ports used for connecting external storage and human interface devices (e.g., a keyboard) to the intelligent gateway 24.
  • An isolated RS-485 transceiver may also be incorporated to enable communication between the intelligent gateway 24 and at least some of the Modbus-compatible components.
  • the intelligent gateway 24 also includes an expansion bus that enables the integration of additional modules that may be attached to the intelligent gateway 24.
  • the expansion bus may include power outputs to power the additional modules, a controller area network (CAN) bus and/or an RS-485 connector to enable communication between the intelligent gateway 24 and the additional modules, and a USB connector for supporting a LoRa gateway used to wirelessly communicate with sensors, actuators, and other components of smart buildings.
  • CAN controller area network
  • RS-485 RS-485 connector
  • USB connector for supporting a LoRa gateway used to wirelessly communicate with sensors, actuators, and other components of smart buildings.
  • the intelligent gateway 24 is operatively connected to the ventilators 10, the heating/cooling assemblies 12, sensors 36, and other components of the air processing system 2 in order to monitor the quality and temperature of the air within the building 4 and to enable direct control of the ventilators 10 and heating/cooling assemblies 12 so that the quality and temperature of the air may be adjusted.
  • the intelligent gateway 24 is also capable of monitoring the performance of the various air processing system 2 components.
  • the ventilators 10 and the heating/cooling assemblies 12 may include filters configured to remove particulate matter and other contaminants from the air.
  • the ventilators 10 and the heating/cooling assemblies 12 are capable of monitoring the performance and filtering capabilities of the individual filters and can report the performance characteristics of the individual filters to the intelligent gateway 24.
  • the intelligent gateway 24 is capable of cataloging the performance data of the individual filters and can notify a user or technician monitoring the air processing system 2 when a filter needs to be changed.
  • the intelligent gateway 24 also monitors the heat transfer efficiency of the heat exchanger 1 1 , the air throughput of the ventilators, and the power and energy used by the ventilators 10 and the heating/cooling assemblies 12, records these operating conditions and provides the operating conditions to a user or technician, enabling real-time performance monitoring of the various components of the air-processing system.
  • the air processing system 2 may be capable of operating in different modes. For example, during the day when the building 4 is occupied, the ventilators 10 may be required to circulate large amounts of fresh air so as to sufficiently remove large amounts of stale air and CO2 from the building. At night, however, the building 4 may be empty and the ventilator 10 may only be required to circulate a comparatively small amount of air.
  • the intelligent gateway 24 includes a plurality of operating condition profiles stored in a database (e.g., an SQL database) within the system storage of the intelligent gateway 24.
  • the intelligent gateway 24 may include profiles that enable the air processing system to operate in an "Air Flow Mode,” a "Boost Mode,” an "Unoccupied Mode,” a “Free Cooling Mode,” or an “Air Quality Mode.”
  • the intelligent gateway 24 may be configured to switch to a different mode based on several different circumstances.
  • the intelligent gateway 24 may include a clock used to synchronize the internal clocks of the various air processing system components. When the clock reaches a certain time, the intelligent gateway 24 may be configured to switch the air processing system into a different mode.
  • the intelligent gateway 24 may also be configured to switch the operating mode of the system based on a signal or instruction received from a user or technician connected to the intelligent gateway or when a sensor 36 coupled to the intelligent gateway 24 detects a change (e.g., an occupancy sensor determines that the building 4 is empty).
  • a sensor 36 coupled to the intelligent gateway 24 detects a change (e.g., an occupancy sensor determines that the building 4 is empty).
  • a technician or authorized user may establish a connection between the intelligent gateway 24 and a personal electronic device 38 (e.g., a smart phone or a laptop).
  • a wireless connection e.g., a Wi-Fi or Bluetooth connection
  • the personal electronic device may be connected to the intelligent gateway 24 with a wired connection 26 (e.g., an Ethernet connection).
  • the personal electronic device 38 is capable of receiving and viewing various data and information related to the operation of the air processing system 2.
  • the personal electronic device 38 may receive sensor data from each of the sensors 36, the operating conditions of the various ventilators 10 and heating/cooling assemblies 12, the current operating mode and operating conditions profile the air processing system 2 is currently operating in, and any errors or issues detected by the intelligent gateway 24 (e.g. , a filter replacement notification or an error indicating that a components is not functioning properly).
  • the personal electronic device 38 may also be capable of issuing instructions or sending signals to the intelligent gateway 24 via the wireless connection 34 so as to control or make changes to the operating conditions of the air processing system 2.
  • the intelligent gateway 24 may enable a connected technician to switch the air processing system into a different operating mode via the wireless connection 34, change the operating conditions of one of the components of the air processing system 2 to adjust the temperature, humidity, and/or composition of the air within the building 4, and even program a new operating conditions profile to enable the air processing system to operate in a new mode.
  • the intelligent gateway 24 may be connected to a cloud computing server 44.
  • the intelligent gateway 24 includes an LTE antenna 40 and is configured to establish an LTE connection 42 with the cloud computing server 44 to enable remote access to the intelligent gateway 24.
  • the intelligent gateway 24 may be connected to the cloud computing server 44 using a wired connection 26.
  • the cloud computing server 44 is configured to receive sensor data from each of the sensors 36, the operating conditions of the various ventilators 10 and heating/cooling assemblies 12, the current operating mode and operating conditions profile the air processing system 2 is currently operating in, and any errors or issues detected by the intelligent gateway 24.
  • the cloud computing server 44 includes a database configured to store all of the received information. Furthermore, the server 44 is configured to analyze and sort the data in order to generate reports regarding issues relating to performance, cost, and health of the various components (e.g., ventilators 10 and heating/cooling assemblies 12) as well as of the entire air processing system 2. After generating the reports, the cloud computing server 44 is configured to send them to technicians and various interested users via Email.
  • the cloud computing server 44 may also be configured to send alerts to the technicians and users via Email or via SMS text messages when an issue is detected.
  • the cloud computing server 44 may be accessible to a technician or user via a web interface, where each authorized user accesses the server 44 using a personalized username and password.
  • the cloud computing server 44 displays a dashboard that includes the current operating status, historical operating data, charts and diagrams of the air processing system 2, alerts and notifications, cost and energy-saving tips and recommendations, and health and efficiency estimates of the various air processing system 2 components.
  • the dashboard may also include tools to enable remote activation of individual components or switching between operating modes.
  • the cloud computing server 44 may also be capable of connecting to and communicating with multiple intelligent gateways 24.
  • FIG. 3 shows a diagram of three buildings 4 that each have an intelligent gateway 24 configured to monitor and control the corresponding air processing systems that regulate the air quality and temperature of the air within the buildings 4.
  • the cloud computing server 44 is connected to each of the three intelligent gateways 24 and is capable of sorting and independently analyzing the data and air processing systems from each building 4.
  • the dashboard displayed by the server 44 separates the data and information relating to the individual air processing systems so that the performance of the individual systems may be independently monitored.
  • FIG. 4 shows a method 400 of operating an air processing system for a building that is used to monitor and control the air quality and temperature of air within the building.
  • a first sensor coupled to a ventilator used to circulate air through the building measures a first measurement value.
  • the first sensor may be a temperature sensor, a humidity sensor, an air pressure sensor, or some other sensor.
  • a second sensor coupled to a temperature adjustment assembly e.g., a heating unit, an air conditioning unit, or a heating/cooling assembly
  • a temperature adjustment assembly e.g., a heating unit, an air conditioning unit, or a heating/cooling assembly
  • the second sensor may be a temperature sensor, a humidity sensor, an air pressure sensor, or some other sensor.
  • the first and second measurement values are transmitted to intelligent gateway and at step 425 the intelligent gateway compares the first and second measurement values to respective first and second predetermined values.
  • the first sensor is a humidity sensor configured to measure the humidity of air surrounding the sensor
  • the first predetermined value may be a maximum acceptable humidity.
  • the second sensor is a temperature sensor configured to measure the temperature of air surrounding the sensor
  • the second predetermined value may be a minimum acceptable temperature.
  • the intelligent gateway determines if the first measurement value is sufficiently different from the first predetermined value. If the first measurement value is sufficiently different, the method 400 proceeds to step 435. If it is not, the method 400 proceeds to step 440.
  • the air processing system adjusts the operating conditions of the ventilator. For example, if the first measurement value is a temperature measurement that indicates the temperature of the air surrounding the ventilator, determining that the first measurement value is sufficiently different from the first predetermined value indicates that the air surrounding the ventilator is hotter (or colder) than a preferred temperature. As such, adjusting the operating conditions of the ventilator to circulate more fresh air through the building may help to reduce the difference between the measured temperature and the preferred temperature, as an example. [0035] At step 440, the air processing system determines if the second measurement value is sufficiently different from the second predetermined value. If the second measurement value is sufficiently different, the method 400 proceeds to step 445. If it is not, the method 400 proceeds to step 450.
  • the air processing system adjusts the operating conditions of the temperature adjustment assembly. For example, if the second measurement value is a temperature measurement that indicates the temperature of the air surrounding the temperature adjustment assembly, determining that the second measurement value is sufficiently different from the second predetermined value indicates that the air surrounding the temperature adjustment assembly is or colder than a preferred temperature. As such, adjusting the operating conditions of the temperature adjustment assembly by increasing the amount of heat generated by the assembly to increase the temperature of the air, as an example.
  • the intelligent gateway provides the current operating conditions of the ventilator and the temperature adjustment assembly to a cloud computing server connected to the gateway so that the cloud computing server can display the updated operating conditions and possibly notify a technician that the operating conditions have changed.
  • An air processing system configured to monitor and control the quality and temperature of air within a building, comprising:
  • a temperature adjustment assembly coupled to the building and configured to adjust the temperature of the air within the building
  • a ventilator coupled to the building, the ventilator including a dedicated outdoor air system having a heat exchanger, wherein the ventilator is spaced apart from the temperature adjustment assembly, wherein the air within the building comprises stale air and the ventilator is configured to take in the stale air and expel it outside of the building and to take in fresh air from outside of the building and circulate the fresh air within the building; a intelligent gateway connected to the temperature adjustment assembly and the ventilator and configured to monitor and control operating conditions of the temperature adjustment assembly and the ventilator; and
  • a cloud computing server connected to the intelligent gateway and configured to receive a signal from the intelligent gateway that indicates the operating conditions of the temperature adjustment assembly and the ventilator.
  • the temperature adjustment assembly comprises a first sensor configured to measure a first characteristic of the air within the building and to record a first sensor value based on the first characteristic
  • the ventilator comprises a second sensor configured to measure a second characteristic of the air within the building and to record a second sensor value based on the second characteristic
  • a third sensor configured to measure a third characteristic of the air within the building and to record a third sensor value based on the third quality
  • the intelligent gateway is configured to receive the third sensor value, compare the third sensor value to a third predetermined sensor value, and adjust the operating conditions of at least one of the temperature adjustment assembly and the ventilator based on the comparison between the third sensor value and the third predetermined sensor value.
  • the ventilator comprises: a heat exchanger having a first intake portion configured to take in the fresh air and a second intake portion configured to take in the stale air;
  • a first sensor adjacent to the first intake portion and configured to measure a characteristic of the fresh air and to record a first sensor value based on the characteristic
  • the intelligent gateway is configured to receive the first and second sensor values, compare the first sensor value to the second sensor value, and adjust the operating conditions of the at least one of the temperature adjustment assembly and the ventilator based on the comparison between the first and second sensor values.
  • the intelligent gateway comprises a first intelligent gateway
  • the ventilator comprises a first ventilator
  • the temperature adjustment assembly comprises a first temperature adjustment assembly
  • the signals that indicate the operating conditions of the temperature adjustment assembly and the ventilator comprise first signals
  • the air processing system is configured to monitor and control the quality and temperature of air within a second building, the air processing system further comprising:
  • a second temperature adjustment assembly coupled to the second building; a second ventilator coupled to the second building; and
  • a second intelligent gateway connected to the second temperature adjustment assembly and the second ventilator and configured to monitor and control operating conditions of the second temperature adjustment assembly and the second ventilator
  • the cloud computing server is connected to the second intelligent gateway and configured to receive the operating conditions of the second temperature adjustment assembly and the second ventilator from the second intelligent gateway.
  • cloud computing server is configured to display the operating conditions of the temperature adjustment assembly and the ventilator based on the first signal to a user connected to the cloud computing server,
  • cloud computing server is configured to transmit a second signal generated by the user to the intelligent gateway
  • intelligent gateway is configured to adjust the operating conditions of at least one of the temperature adjustment assembly and the ventilator based on the second signal.
  • a second temperature adjustment assembly coupled to the building; and a second ventilator coupled to the building, wherein the intelligent gateway is connected to the second temperature adjustment assembly and the second ventilator and configured to monitor and control operating conditions of the temperature adjustment assembly and the ventilator.
  • the intelligent gateway is configured to receive a filter status signal from the ventilator that indicates a status of the filter and to transmit the status of the filter to the cloud computing server,
  • the cloud computing server is configured to compare the status of the filter to a predetermined status value
  • the cloud computing server is configured to issue an alert to a user connected to the cloud computing server if the status of the filter is less than the predetermined status value.
  • a intelligent gateway coupled to a ventilator and a temperature adjustment assembly, wherein the ventilator is separate from the temperature adjustment assembly and is configured to circulate fresh air into a building, and the temperature adjustment assembly is configured to condition the air within the building, wherein- the intelligent gateway is configured to monitor and control operating conditions of the ventilator and temperature adjustment assembly,
  • the intelligent gateway is configured to receive a first temperature measurement from a first temperature sensor coupled to the ventilator and a second temperature measurement from a second temperature sensor coupled to the temperature adjustment assembly,
  • the intelligent gateway is configured to compare the first temperature measurement to a first predetermined temperature value and to compare the second temperature measurement to a second predetermined temperature value, and the intelligent gateway is configured to adjust the operating conditions of at least one of the ventilator and the temperature adjustment assembly based on the comparison between the first temperature measurement and the first predetermined temperature value and the comparison between the second temperature measurement and the second predetermined temperature value.
  • the intelligent gateway of example 12 further comprising:
  • the intelligent gateway is coupled to the ventilator and the temperature adjustment assembly using the wireless communications circuitry.
  • the intelligent gateway of example 12 wherein- the intelligent gateway is connected to a cloud computing server and to send a first signal to the cloud computing server that includes at least the operating conditions of the ventilator and the temperature adjustment assembly, the temperature measurement, and the second temperature measurement, the intelligent gateway is configured to receive a second signal from the cloud computing server, and
  • the intelligent gateway is configured to adjust the operating conditions of at least one of the ventilator and the temperature adjust assembly based on the second signal.
  • system storage configured to store a first operating condition profile and a second operating condition profile, wherein- the intelligent gateway is configured to adjust the operating conditions of the ventilator and the temperature adjustment assembly based on the first operating condition profile when the digital clock is at a first time, and the intelligent gateway is configured to adjust the operating conditions of the ventilator and the temperature adjustment assembly based on the second operating condition profile when the digital clock is at a second time.
  • the intelligent gateway is configured to compare the humidity measurement, occupancy measurement, carbon dioxide concentration measurement, carbon monoxide measurement, and volatile organic compound measurement to corresponding predetermined sensor values, and the intelligent gateway is configured to adjust the operating conditions of at least one of the ventilator and the temperature adjustment assembly based on the comparisons between the humidity, occupancy, carbon dioxide concentration, carbon monoxide, and volatile organic compound measurements and the corresponding predetermined sensor values.
  • a method of operating an air processing system configured to monitor and control the quality and temperature of air within a building, wherein the air processing system includes an intelligent gateway configured to monitor and adjust operating conditions of a dedicated outdoor air system ventilator and a temperature adjustment assembly wherein the ventilator is separate from the temperature adjustment assembly, the method comprising: transmitting a first measurement value from a first sensor coupled to the ventilator to the intelligent gateway;
  • the intelligent gateway adjusting the operating condition of at least one of the ventilator and the temperature adjustment assembly based on the comparison between the first and second measurement values and the corresponding first and second predetermined values.
  • the intelligent gateway adjusting the operating condition of at least one of the ventilator and the temperature adjustment assembly based on the control signal.
  • An intelligent gateway connected to a dedicated outdoor air system (DOAS) with integrated heat recovery (e.g., a countercurrent heat exchanger) for ventilation in combination with separate equipment for the heating/cooling temperature adjustment assembly provides improved operational and air quality efficiencies including control of temperature, pressure, humidity, quantities of CO2, CO, and/or volatile organic compounds present in the air, and other qualities.
  • DOAS dedicated outdoor air system
  • the dedicated outdoor air systems can provide more reliable and more efficient temperature control and indoor air quality characteristics.
  • the temperature adjustment systems can provide better temperature control and indoor air comfort as compared to traditional systems.

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

Abstract

L'invention concerne un système de traitement d'air configuré pour surveiller et commander la qualité et la température de l'air à l'intérieur d'un bâtiment. Le système de traitement d'air comprend au moins un ensemble de réglage de température (par exemple, un système de chauffage/refroidissement) servant à chauffer ou à refroidir l'air à l'intérieur du bâtiment et au moins un ventilateur de système d'air extérieur dédié servant à faire circuler de l'air frais à l'intérieur du bâtiment, le système de traitement d'air étant séparé de l'ensemble de réglage de température. Le système de traitement d'air comprend également une passerelle intelligente faisant partie du ventilateur et étant connectée à l'ensemble de réglage de température et au ventilateur de façon à en surveiller et à en commander les conditions de fonctionnement. La passerelle intelligente peut envoyer les conditions de fonctionnement et n'importe quelles mesures de capteurs à un serveur informatique en nuage qu'un utilisateur ou un technicien peut utiliser pour établir une interface avec le système de traitement d'air.
PCT/US2018/014600 2017-01-29 2018-01-21 Systèmes et procédés de fourniture de gestion de ventilation à la demande WO2018140330A1 (fr)

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