-
公开(公告)号：US12061219B2
公开(公告)日：2024-08-13
申请号：US17835548
申请日：2022-06-08
发明人： Shaohang Cui , Ketao Li , Yufan Wang , Liang Wang
CPC分类号： G01R22/068 , G06F1/28
摘要： Provided are a method and apparatus for system self-recovery. Specifically, a power meter employs a method in which a processor monitors the status of threads running in the power meter. The threads include at least one critical thread for measuring electricity usage at a metering point and at least one noncritical thread for other auxiliary functions. The Power meter can reboot if the status received from the threads indicates that a critical thread among the at least one critical thread works abnormally, and can restart the noncritical thread if the status received from the threads indicates that a noncritical thread among the at least one noncritical thread works abnormally.
-
公开(公告)号：US20240187010A1
公开(公告)日：2024-06-06
申请号：US18075388
申请日：2022-12-05
发明人： Shaohang Cui , Ketao Li , Yufan Wang , Liang Wang
CPC分类号： H03M1/002 , H03M1/1245 , H03M1/164
摘要： An Intelligent Electronic Device (IED) for measuring a zero-crossing based electrical parameter when there is power quality disturbance in the power supply network. More specifically, the IED includes at least one sensor configured for sensing at least one electrical parameter of electrical power distributed from an electrical distribution system to a load, at least one analog-to-digital converter coupled to the at least one sensor and configured for converting an analog signal output from the at least one sensor to digital data, at least one processing module coupled to the at least one analog-to-digital converter, the at least one processing module is configured to receive the digital data, determine that the IED enters loss of synchronization according to the received digital data, measure a zero-crossing based electrical parameter of the digital data according to the cycle of the digital signal immediately before loss of synchronization.
-
公开(公告)号：USD1043745S1
公开(公告)日：2024-09-24
申请号：US29867918
申请日：2022-11-14
设计人： Ketao Li , Yufan Wang , Liang Wang
摘要： The sole FIGURE is a front view of a touch screen or portion thereof with graphical user interface, showing our new design.
The broken lines are perimeters that illustrate the article of manufacture, such as a display screen or panel, which is embodied in the environment of the design; and form no part of the claimed design.-
公开(公告)号：US20230401481A1
公开(公告)日：2023-12-14
申请号：US17836144
申请日：2022-06-09
发明人： Shaohang Cui , Ketao Li , Haoliang Deng , Yufan Wang , Liang Wang
IPC分类号： G06N20/00
CPC分类号： G06N20/00
摘要： Provided are a method and apparatus to measure line frequency. Specifically, an Intelligent Electronic Device employs a method in which a processor receives a training dataset including an input variable set and a corresponding zero-crossing position output variable, obtains a hypothesis function based on the training dataset, estimates zero-crossing positions using the hypothesis function and computes a fundamental frequency of the signal based on the estimated zero-crossing positions.
-
公开(公告)号：US12015262B2
公开(公告)日：2024-06-18
申请号：US17836982
申请日：2022-06-09
发明人： Ketao Li , Yufan Wang , Liang Wang
CPC分类号： H02H3/085 , H02H3/10 , H05K7/20409
摘要： An integrator for monitoring at least one parameter of an electrical signal in an electrical conductor in protective relay application. The integrator includes an integrator circuit having an input for receiving a signal from a current sensor coupled to the electrical conductor. A switch circuit has an input coupled to the output of the integrator circuit, wherein the switch circuit is controlled by the output of a temperature detection circuit. A power stage circuit has an input coupled to the output of the switch circuit, wherein the temperature detection circuit is coupled to a heating element of the power stage circuit through a temperature sensor, and the heating element is attached to a channel-shaped heatsink for heat dissipation.
-
公开(公告)号：US12000875B1
公开(公告)日：2024-06-04
申请号：US18075380
申请日：2022-12-05
发明人： Shaohang Cui , Ketao Li , Yufan Wang , Liang Wang
摘要： Provided are a method and apparatus for generating an electrical parameter identifier in an Intelligent Electronic Device (IED). Specifically, the method includes obtaining attributes of the electrical parameter and generating an identifier for the electrical parameter according to the attributes.
-
公开(公告)号：USD1028765S1
公开(公告)日：2024-05-28
申请号：US29841983
申请日：2022-06-09
设计人： Yufan Wang , Shaohang Cui , Ketao Li , Yan Ding , Liang Wang
摘要： FIG. 1 is a front, top, left perspective view of a power meter that can be optionally connected to a DIN rail or a display module;
FIG. 2 is a front elevational view thereof;
FIG. 3 is a rear elevational view thereof;
FIG. 4 is a left side elevational view thereof;
FIG. 5 is a right side elevational view thereof;
FIG. 6 is a top plan view thereof; and,
FIG. 7 is a bottom plan view thereof.
The broken line showing of structural features is included for the purpose of illustrating non-claimed subject matter and forms no part of the claimed design.-
公开(公告)号：US20230403834A1
公开(公告)日：2023-12-14
申请号：US17837153
申请日：2022-06-10
发明人： Ketao Li , Shaohang Cui , Yan Ding , Yufan Wang , Liang Wang
IPC分类号： H05K9/00
CPC分类号： H05K9/0083 , H05K9/0075
摘要： Provided in the embodiments are an electromagnetic interference suppression circuit and an intelligent electronic device. The electromagnetic interference suppression circuit comprises at least one ferrite bead located at the input port of the circuit, a transient voltage suppression diode, wherein either terminal of the transient voltage suppression diode is connected with the at least one ferrite bead, a resistor network connected with the transient voltage suppression diode, and an optocoupler with an alternating current input response coupled to resistor network.
-
公开(公告)号：US20240183888A1
公开(公告)日：2024-06-06
申请号：US18075376
申请日：2022-12-05
发明人： Shaohang Cui , Ketao Li , Yufan Wang , Liang Wang
CPC分类号： G01R22/063 , H04B10/40
摘要： Provided are a method and apparatus for communication between a CPU and a Digital Signal Processor (DSP) in an Intelligent Electronic Device (IED). Specifically, the IED includes at least one analog-to-digital converter coupled to at least one sensor and configured for converting an analog signal output from the at least one sensor to digital data; a DSP coupled to the at least one analog-to-digital converter, and configured to perform digital signal processing on the signal from the at least one analog-to-digital converter; a CPU coupled to the DSP via a hardware path; wherein the DSP and the CPU are configured to communicate using a transmission protocol including a data header and a data payload based on the hardware path; wherein the data header includes a field of command identification indicating a specific communication purpose and a field of command type indicating the communication direction and frequency.
-
公开(公告)号：US20230403800A1
公开(公告)日：2023-12-14
申请号：US17835483
申请日：2022-06-08
发明人： Yufan Wang , Shaohang Cui , Ketao Li , Yan Ding , Liang Wang
CPC分类号： H05K5/0017 , G06F1/1601
摘要： An intelligent electronic device that can be optionally connected to a DIN rail or a display module without requiring the use of tools. An intelligent electronic device for measuring a characteristic of electricity is provided, which is enclosed in a housing that has a front and a rear. The housing defines an interior volume and includes a sensor configured to sense a characteristic of electricity. The rear of the housing includes a first protuberance structure disposed on a first outer surface. The first protuberance structure contains elongate protrusions and at least one hexagonal protrusion on a second outer surface. The elongate protrusions include upper protrusions and lower protrusions. The lower protrusions include left protrusions and right protrusions, and the at least one hexagonal protrusion is disposed between the left protrusions and right protrusions.
-
-
-
-
-
-
-
-
-
搜索结果
17 条记录 (耗时 0.01 秒)
