53 results about "HVAC control system" patented technology

An HVAC control system is described comprising: a server (32) having planned information, a man-machine interface (50) capable of communication with the server (32) to provide dynamic information about building occupancy based on a change in cold water in a mains riser. A central control unit (28) which can communicate with the server (32), and a room node (22, 24) for providing information about conditions within the room whereby, the information about room conditions is compared to planned information and/or dynamic information and adjustments made accordingly. The room node (22, 24) may comprise sensors (276, 278, 272, 274) which provide information about conditions in the room. Dynamic information can include changes to planned occupancy, the effect of solar heating and weather conditions. Changes to planned occupancy can be established through detecting location (internally or externally) or destination of a user; and calculating estimated time of arrival of a user.

The invention comprises a system for calculating a value for the effective thermal mass of a building. The climate control system obtains temperature measurements from at least a first location conditioned by the climate system. One or more processors receive measurements of outside temperatures from at least one source other than the control system and compare the temperature measurements from the first location with expected temperature measurements. The expected temperature measurements are based at least in part upon past temperature measurements obtained by said HVAC control system and said outside temperature measurements. The processors then calculate one or more rates of change in temperature at said first location.

Systems and methods are described for an adaptive hierarchy usage monitoring HVAC control system. A method, includes: regulating user access to at least one menu of an interactive user interface of a programmable digital thermostat, including: reversibly defining at least one minimum user level required to access the at least one menu.

Systems and methods are described that provide a Heat Flow Model (HFM) graph modeling methodology. Embodiments automatically translate formal HVAC system descriptions from a Building Information Model (BIM) into HFM graphs, and compile the graphs into executable FDD systems. During an engineering phase, a user interface is used to enter parameters, conditions, and switches not found in the BIM. During a runtime phase, real-time data from an HVAC control system is input to the generated FDD system (HFM graph) for fault detection and diagnosis.

An HVAC control system for a passenger compartment of an over the road vehicle comprises a controllable air conditioner for directing cooled air flow through the passenger compartment and a controllable heater for directing heated air flow through the passenger compartment. A battery selectively powers the air conditioner and the heater. A sensor senses battery energy. A control panel includes user input devices for manually selecting operating parameters of the HVAC system and a battery remaining time display. A controller is operatively connected to the air conditioner, the sensor and the user control panel, the controller determining estimated battery remaining time based on battery energy and the manually selected operating parameters, and displaying the estimated battery remaining time on the battery remaining time display.

An HVAC control system provides a central controller that controls registers/vents which capture energy of air flowing in the duct system and convert it to an electrical current that is stored locally in energy storage units in the register/vent. Further, wireless communication between the central controller and the register/vents alleviates the need for wire runs and maintenance. Use of unique register identifiers allows the central controller to individually control each register based on user settings. As such, the user can install one or more registers and individually control one or more registers for desired temperature control in each zone. A wireless network allows user interaction with the central controller via a Web-page utilizing a Web browser on a PC that wirelessly connects to the central controller (e.g., via a wireless network). The register/vent combination is preferably and all-in-one unit that slides into the air duct opening in each zone.

Method for controlling a HVAC system in a vehicular compartment includes monitoring temperature of an occupant in the compartment from a location apart from the occupant, and controlling the HVAC system based on the monitored temperature. Occupant temperature may be monitored by infrared sensors, each arranged in an orientation to receive electromagnetic radiation from one or more seating locations in which occupants are likely to be situated. The temperature in each seating location is independently monitored. The HVAC system is controllable for each seating location based on the monitored temperature in that area. When monitoring of temperature in an area in which a driver of the vehicle is likely to be situated indicates presence of the driver, and no other areas indicate presence of a human occupant, the HVAC system is controllable such that all heat or air-conditioning provided by the HVAC system is directed to the driver.

A method of controlling the heating, ventilation and air conditioning (HVAC) system of a building, the method comprising the steps of: (a) developing an initial thermal model of the building, and continuously updating the thermal model over time; (b) utilising the thermal model to continuously develop a daily HVAC operating plan for the building; and (c) continuously examining a current HVAC operating plan and optimising the alignment of the current HVAC operation with the current HVAC operating plan.

A control system is configured to improve the efficiency of the heating and/or cooling equipment, and to aid in cutting costs associated with the running of the heating and/or cooling equipment. That is, to save the user on utility costs, while maintaining comfort within the space that is controlled. It is another objective to facilitate advanced programming of the system as well as scheduling conflict resolution. The control system generally comprises a control unit 12 and a remote controller 14 (which may comprise a smartphone, a computer or the like).

Systems and methods are described for a usage monitoring HVAC control system. A method, includes: providing a usage monitoring heating ventilation and air conditioning control system, the usage monitoring heating ventilation and air conditioning control system including a programmable digital thermostat with an on board memory; issuing personal identification numbers to each of a plurality of system users; associating each of the plurality of system users with at least one of a plurality of user types; storing the personal identification numbers in a first data structure in the on board memory; and linking each one of a plurality of entries in the first data structure by reference to at least one of a plurality of entries in a second data structure in the on board memory, the second data structure including a list of user types. A method, includes: receiving a request for an additional period of heating ventilation and air conditioning system services from a requesting system user, the requesting system user composing a plurality of system users; maintaining a data structure in an on board memory of a programmable thermostat, the data structure including a list of time entries, each time entry associated with one of the plurality of system users; and updating the data structure by adding a duration in units of time to the time associated with the requesting system user. An apparatus, includes: a microcontroller; a digital temperature sensor coupled to the microcontroller; a liquid crystal display coupled to the microcontroller; a set of cursor buttons coupled to the microcontroller; an electrically erasable programmable read-only memory coupled to the microcontroller; an upload capable connector coupled to the electronically erasable programmable read-only memory; a real time clock coupled to the microcontroller; and a back up power supply coupled to the real time clock. A method, includes regulating user access to an interactive user interface of a programmable thermostat, each user identified by a personal identification number associated with a user type selected from the group consisting of building owners, maintenance personnel, building tenants, and manufacturers.

A method controls a heating, ventilation, air conditioning (HVAC) system by determining a travel time from a mobile site to a fixed site, and determining a conditioning time for a HVAC system at the fixed site. The HVAC is maintained in an ON state if the travel time is less than the conditioning time, and otherwise maintaining the HVAC in an OFF state, and wherein the conditioning time is determined using a building thermal model.

A system and method for environmental management of a vehicle automatically operates a vehicle climate control system to quickly and efficiently defog a vehicle windshield, while still operating at or near environmental comfort guidelines determined by a vehicle occupant. The method may be executed by an HVAC control system that is configured with a preprogrammed algorithm to operate an HVAC to achieve the desired results. A number of sensors can provide inputs to the control system, which can also receive inputs from a number of manual overrides operable by an occupant of the vehicle. The preprogrammed algorithm is configured to act on the various inputs to operate the HVAC to strike an appropriate balance between occupant comfort and windshield defogging.

An automatic HVAC control system is configured to control an HVAC unit, and the HVAC unit includes a heating mode and a cooling mode for modifying an air temperature of an inside space. The control system includes: a first temperature sensor disposed to measure an air temperature of an outside space; a second temperature sensor disposed to measure the air temperature of the inside space; a memory for storing a set-point for the HVAC unit; a set-point controller that adjusts the set-point based on the air temperature of the outside space; and an HVAC controller that is programmed to determine whether modification of the air temperature of the inside space is desired by comparing the air temperature of the inside space with the set-point, wherein if modification of the air temperature is desired, the HVAC controller commands the HVAC unit to start the heating mode or cooling mode.

The invention provides an indoor plant factory system. The system comprises a planting room, a nutrient solution room and a control system, wherein the planting room comprises a seeding room, a seedling room, a cultivation room, a harvesting room, a cleaning room, and is a planting place of plants; the nutrient solution chamber is provided with a mother liquid tank, a nutrient liquid tank and an assorted water supply and drainage system, and is a preparation and control place for a nutrient solution; the control system comprises an HVAC control system, a nutrient solution control system and anLED growth lamp illumination system, and is used for monitoring, adjusting and controlling environmental parameters in a plant factory and a nutrient solution system. The indoor plant factory systemhas the advantages that the degree of automation is high; an assorted loading and unloading device and cultivation groove transport equipment are arranged, so that the manpower is reduced; the nutrient solution, the environmental temperature and humidity, the LED fill-in light, the CO2 gas fertilizer and the like are highly automatically controlled, so that the manpower is reduced, errors caused by human operation are avoided, the space utilization is high, the planting row spacing can be adjusted along with the growth of vegetables, and compared with a conventional planting method, planting amount can be increased by 50% per unit area.

A method of clearing an HVAC control fault code memory is disclosed. The method includes assigning a predetermined reset code to an HVAC control system, the predetermined reset code comprising a plurality of control signals receivable by the HVAC control system, detecting control signals at the HVAC control system, determining whether the detected HVAC control input signals match the predetermined reset code and clearing a fault code memory of the HVAC control system in response to control signals matching the predetermined reset code.

The invention relates to an intelligent control method of a control system of an HVAC (Heating, Ventilation, Air-conditioning and Cooling) control system, in particular to an HVAC control system based on an LSTM (Long Short Term Memory) neural network of a GC (generalized correntropy) loss function and a DRL (deep reinforcement learning) algorithm. The method comprises the following steps: acquiring outdoor environment temperature, indoor environment temperature and electricity price information of a power grid, preprocessing the acquired data, and predicting the outdoor environment temperature of multiple steps in the future by using historical data of the outdoor environment temperature; on the basis of the future outdoor temperature value, the indoor environment temperature and the power grid electricity price information, controlling the power output of the HVAC system by utilizing a DDPG (Deep Deterministic Policy Gradient) algorithm of the DRL. According to the invention, the HVAC system can be intelligently controlled in real time, so that the user cost is reduced, the satisfaction degree of the user is ensured, and the method has high practical engineering application value.

An HVAC control system for directing the flow of air in a work vehicle's HVAC system responds to the orientation of a rotating seat within the work vehicle's cabin. The seat may rotate between at least two operational positions, such that the operator of the work vehicle may control a forward or a rearward implement. The HVAC control system includes one or more detectors for detecting the position of the seat. A control module receives output from the detectors and allows or prevents the flow of air through particular ducts in the HVAC system based on the seat's position. The control module may actuate one or more doors to open and close ducts as needed. The control module may operate a first door to open or close forward ducts and a second door to open or close rearward ducts depending on whether the seat is facing forward or rearward.

The present invention relates to a Heating, Ventilation and Air Conditioning (HVAC) control system, an HVAC system and control method. The HVAC control system includes an automatic control module, a data acquisition module for monitoring in real time a target region of the HVAC and obtaining acquired data, a data analysis module and a data storage module, wherein the data analysis module receives and analyzes acquired data from the data acquisition module to determine a real-time air conditioning demand situation of a target region, the data storage module stores a historical air conditioning demand situation for being read by the data analysis module, and the automatic control module is in communication with and controls the other modules, and configures air conditioning parameters of the HVAC with reference to the real-time air conditioning demand situation and the historical air conditioning demand situation.