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公开(公告)号：US20230269096A1
公开(公告)日：2023-08-24
申请号：US18306945
申请日：2023-04-25
发明人： Nguyen Trong Ho , Sunil Khiani
CPC分类号： H04L9/3265 , H04L9/3268 , H04L9/0643 , H04L9/50
摘要： A system includes a device and a payload warehouse. The device receives a user request to initiate a feature of the device. In response to receiving the request, device information is provided to a payload warehouse. The payload warehouse stores an inventory which includes a digital payload. The digital payload includes data, such as a digital certificate, which may be used by the device to implement the user-requested feature. The payload warehouse receives the device information provided by the device and determines an encryption vector based at least in part on the received device information. Using the encryption vector, the digital payload is encrypted. The encrypted digital payload is provided to the device.
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公开(公告)号：US11694321B2
公开(公告)日：2023-07-04
申请号：US17035617
申请日：2020-09-28
CPC分类号： G06T7/0004 , G06T7/11 , G06T7/246 , G06T7/0008 , G06T7/0012 , G06T2207/30136 , G06T2207/30164
摘要： A system is configured to receive an indication that an apparatus in a first assembled state should comprise a component with a first digital fingerprint and a component with a second digital fingerprint. The system is configured to receive video footage of apparatuses in the first assembled state. The system is configured to isolate an image of an apparatus in the first assembled state. The system is configured to split the image into a frame comprising a first component and a frame comprising a second component. The system is configured to generate first and second filtered images. The system is configured to identify feature points in the filtered images. The system is configured to determine that the first set of feature points matches the first digital fingerprint and that the second set of feature points matches the second digital fingerprint. The system is configured to update a component database.
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公开(公告)号：US11674708B2
公开(公告)日：2023-06-13
申请号：US17892351
申请日：2022-08-22
CPC分类号： F24F11/72 , F04D15/0022 , F04D29/422 , F04D29/464 , F24F1/0022 , F24F11/46 , F04D29/4226 , F05D2260/57
摘要： A blower for an HVAC system, the blower includes a housing with an intake and an outlet, a fan or blower wheel disposed within the housing and configured to draw air into the housing via the intake and to exhaust air from the housing through the outlet, and an adjustable cutoff plate configured to be moved between at least a first position defining a first cutoff angle and a second position defining a second cutoff angle.
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公开(公告)号：US11644225B2
公开(公告)日：2023-05-09
申请号：US17340542
申请日：2021-06-07
发明人： Payam Delgoshaei
CPC分类号： F25B49/02 , F24F11/83 , F24F11/36 , F25B2500/222
摘要： A method of monitoring a heating, ventilation, and air conditioning (HVAC) system for refrigerant leak. The method includes monitoring, by a controller, operation of the HVAC system and determining, using a plurality of leak detectors, whether refrigerant within the HVAC system is leaking. Responsive to a positive determination in the determining step, receiving, by the controller, a refrigerant leak warning signal and modifying, by the controller, operation of the HVAC system to prevent the refrigerant from entering an enclosed space.
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公开(公告)号：US11644204B2
公开(公告)日：2023-05-09
申请号：US17451635
申请日：2021-10-20
IPC分类号： G05B13/04 , G05B13/02 , F24F11/30 , F24F11/64 , F24F11/65 , F24F140/60 , F24F120/12 , F24F130/10 , F24F140/50
CPC分类号： F24F11/30 , F24F11/64 , F24F11/65 , G05B13/0265 , G05B13/048 , F24F2120/12 , F24F2130/10 , F24F2140/50 , F24F2140/60
摘要： A heating, ventilation, and air conditioning (HVAC) control device is configured to record a plurality of actual occupancy statuses, to determine a plurality of corresponding predicted occupancy statuses, and to compare the plurality of predicted occupancy statuses to the plurality of actual occupancy statuses. The device is further configured to identify conflicting occupancy statuses based on the comparison. A conflicting occupancy status indicates a difference between an actual occupancy status and a corresponding predicted occupancy status. The device is further configured to identify timestamps corresponding with the conflicting occupancy statuses, to identify historical occupancy statuses corresponding with the identified timestamps, and to update the conflicting occupancy statuses in the predicted occupancy schedule with the historical occupancy statuses.
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公开(公告)号：US20230086486A1
公开(公告)日：2023-03-23
申请号：US18052475
申请日：2022-11-03
摘要： An HVAC system includes a variable-speed compressor which compresses refrigerant flowing through the HVAC system, a blower which provides a flow of air through the HVAC system at a controllable flow rate, and a controller communicatively coupled to the variable-speed compressor and the blower. The controller receives a demand request which includes a command to reduce power consumption by the HVAC system. In response to receiving the demand request, a speed of the variable-speed compressor is decreased and the controllable flow rate of the flow of air provided by the blower is adjusted.
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公开(公告)号：US11609046B2
公开(公告)日：2023-03-21
申请号：US17644177
申请日：2021-12-14
IPC分类号： F24F11/36 , F25B49/02 , F28D1/04 , F24F11/52 , F24F5/00 , F24F140/50 , F24F140/20
摘要： An HVAC system includes an evaporator, a first sensor coupled to the evaporator at a first position, and a second sensor operably coupled to the evaporator at a second position. The first sensor monitors a first temperature of the refrigerant flowing in the evaporator at the first position, which is adjacent to the evaporator inlet. The second sensor monitors a second temperature of the refrigerant flowing in the evaporator at the second position, which is downstream from the first position. The system includes a controller, which receives a first signal corresponding to the first temperature and a second signal corresponding to the second temperature. The controller determines, based on the received signals, a temperature difference between the second temperature and the first temperature. In response to determining that the temperature difference is greater than a predefined threshold value, the controller determines that a loss of charge has occurred.
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公开(公告)号：US11604015B2
公开(公告)日：2023-03-14
申请号：US16997911
申请日：2020-08-19
发明人： Colin Patrick Clara
IPC分类号： F25B39/00 , F25B7/00 , F28F1/02 , F25B39/04 , F28F9/02 , F28D1/04 , F28F1/12 , F28D1/053 , F28D21/00
摘要： In one instance, a multistage microchannel condenser is provided for use as an aspect of a heating, ventilating, and air conditioning (HVAC) system. The multistage microchannel condenser includes at least two pluralities of flat tubes having microchannels, each associated with a different refrigeration circuit, that are interspersed so that when only one refrigeration circuit is operational, the multistage microchannel condenser still does not have any substantial thermal dead spots. Manifolds are used on each end of the multistage microchannel condenser to fluidly couple members of the at least two pluralities of flat tubes such that the refrigerant in each refrigeration circuit remains separated while still using a majority of the area of the face of the multistage microchannel condenser. Other aspects are presented.
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公开(公告)号：US20230053380A1
公开(公告)日：2023-02-23
申请号：US18047626
申请日：2022-10-18
发明人： Eric Perez , Shawn Niemann , Colin Clara , Der-Kai Hung
IPC分类号： F25B41/34
摘要： A metering device may automatically control fluid flow through a valve. A control system may alter the automatic control of a metering device. In some implementations, a predetermined event may occur to alter the automatic control of the metering device.
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公开(公告)号：US11549861B2
公开(公告)日：2023-01-10
申请号：US17405169
申请日：2021-08-18
发明人： Shiliang Wang , Rakesh Goel
IPC分类号： F24F11/63 , F24F11/77 , F24F11/86 , F24F11/52 , G01M13/023
摘要： An HVAC system includes a blower. The blower includes a driven pulley and a motor with a driver pulley. A motor drive supplies electrical power to the motor. A controller receives a benchmark rate of the flow of air provided by the blower and a corresponding benchmark output current of the motor drive. A benchmark input power corresponding to the benchmark output current is determined based on a predetermined relationship between input power and output current for the motor drive. A ratio of the benchmark rate of the flow of air provided by the blower to the benchmark input power is determined. The controller determines a pulley ratio for the blower based on this ratio.
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