Abstract: An anomaly detection method and system for a process instrument, and a storage medium are disclosed. The method includes that: a programmable logic controller (PLC) receives measurement data of a process instrument, the measurement data being periodically stored into a historical database so that a service providing system can perform reading and evaluation. At least one virtual function module is integrated on the PLC, a mapping relation is formed between at least one input channel of each virtual function module and output of at least one anomaly diagnosis algorithm disposed on the service providing system, and each anomaly diagnosis algorithm is used for diagnosing whether an anomaly exists in the process instrument. When an anomaly indication outputted by the service providing system is received via an input channel of the virtual function module, the PLC determines that an anomaly exists in the corresponding process instrument.

Abstract: Embodiments of the present disclosure provide method and device for providing service for a programmable logic controller (PLC), including: creating a virtual-functional-module-description file including an address of an input channel of a virtual functional module to be created; and creating the virtual functional module in a PLC based on the virtual-functional-module-description file, assigning the address to the input channel of the virtual functional module, and creating a virtual-functional-module-configuration file including a mapping relation between the input channel and an output of a service provider. The present disclosure proposes a concept of a virtual functional module which is used to map data provided by intelligent data sources outside the PLC to input channel of PLC so that the data can be the same as normal input values used by PLC program.

Abstract: Provided is a female connector for high-speed transmission, including a case, an insulating body, an upper terminal group and a lower terminal group. The insulating body includes an upper insulating body, a middle insulating body, and a lower insulating body. The upper terminal group is disposed on the upper insulating body. The lower terminal group is disposed on the lower insulating body. The upper insulating body and the lower insulating body are engaged with the middle insulating body to form an integrated connector body. The connector body is disposed in the case. The insulating body can receive various terminals and can be fabricated and installed easily.

Abstract: Devices and methods are provided for preventing user churn, wherein the methods include: collecting target user data corresponding to one or more target users associated with a target application program (101), the target user data including user basic attribute information, user behavioral indicator information and user active indicator information; determining a target user type of the one or more target users based on at least information associated with the target user data of the one or more target users (102), the target user type including a normal active user, an approximately silent user and a silent user; and in response to the target user type of the one or more target users being an approximately silent user, pushing first data for promoting activeness to the one or more target users associated with the target application program (103).

Abstract: Provided is a female connector for high-speed transmission, including a case, an insulating body, an upper terminal group and a lower terminal group. The insulating body includes an upper insulating body, a middle insulating body, and a lower insulating body. The upper terminal group is disposed on the upper insulating body. The lower terminal group is disposed on the lower insulating body. The upper insulating body and the lower insulating body are engaged with the middle insulating body to form an integrated connector body. The connector body is disposed in the case. The insulating body can receive various terminals and can be fabricated and installed easily.

Abstract: The present invention discloses an interventional medical device and methods of making the same. At least one coating layer is disposed on the outer surface of the interventional medical device and the material of the outmost layer of the coating layer is a sulfonate group-containing polymer. In the present invention, the material of the outmost layer of the interventional medical device is a sulfonate group-containing polymer. The polymer is endowed with a same surface property as that of heparin in addition to appropriate hydrophilicity due to the presence of the sulfonate group. After the interventional medical device is implanted into the human body, a hydrophilic surface is formed on the outer surface of the interventional medical device which is also negatively charged in the body fluid. Therefore, cells can easily adhere and grow on the outer surface thereof as a result of the enhanced cell compatibility.

Abstract: A wind turbine condition monitoring method includes the steps of generating in advance a reference curve for normal operation of a transmission chain of a wind turbine using position information, measuring position information and generating an actual condition monitoring curve; comparing the actual condition monitoring curve with the reference curve, and determining the current condition of the wind turbine from the comparison. With the proposed monitoring method, monitoring with a high signal-to-noise ratio can be achieved with minimal or no addition of hardware, such as an A/D module; moreover, computational task is greatly reduced, so that the monitoring system can be more easily integrated into the main control system. In addition, the position measurement system is more stable than a vibration measurement system, and the monitoring result is more reliable.

Abstract: A method and fault detection device for detecting faults in digital output channels includes a detection circuit for detecting a first level of a first detection point disposed before a switch and a load in the PLC system, detecting a second level of a second detection point disposed after the switch and load in the PLC system, and for outputting a corresponding first pulse signal according to a change in the first level and second levels, a judgment circuit for judging whether the pulse width of the received first pulse signal is within a permitted range and for outputting a second pulse signal when the judgment result is negative, a trigger circuit for triggering the display circuit according to the received second pulse signal, and a display circuit for displaying a detection result in response to a received signal.

Abstract: SOI devices for plasma display panel driver chip, include a substrate, a buried oxide layer and an n-type SOI layer in a bottom-up order, where the SOI layer is integrated with an HV-NMOS device, an HV-PMOS device, a Field-PMOS device, an LIGBT device, a CMOS device, an NPN device, a PNP device and an HV-PNP device; the SOI layer includes an n+ doped region within the SOI layer at an interface between the n-type SOI layer and the buried oxide layer; and the n+ doped region has a higher doping concentration than the n-type SOI layer.

Abstract: The present invention discloses an interventional medical device and methods of making the same. At least one coating layer is disposed on the outer surface of the interventional medical device and the material of the outmost layer of the coating layer is a sulfonate group-containing polymer. In the present invention, the material of the outmost layer of the interventional medical device is a sulfonate group-containing polymer. The polymer is endowed with a same surface property as that of heparin in addition to appropriate hydrophilicity due to the presence of the sulfonate group. After the interventional medical device is implanted into the human body, a hydrophilic surface is formed on the outer surface of the interventional medical device which is also negatively charged in the body fluid. Therefore, cells can easily adhere and grow on the outer surface thereof as a result of the enhanced cell compatibility.

Abstract: SOI devices for plasma display panel driver chip, include a substrate, a buried oxide layer and an n-type SOI layer in a bottom-up order, where the SOI layer is integrated with an HV-NMOS device, an HV-PMOS device, a Field-PMOS device, an LIGBT device, a CMOS device, an NPN device, a PNP device and an HV-PNP device; the SOI layer includes an n+ doped region within the SOI layer at an interface between the n-type SOI layer and the buried oxide layer; and the n+ doped region has a higher doping concentration than the n-type SOI layer.

Abstract: A wind turbine condition monitoring method includes the steps of generating in advance a reference curve for normal operation of a transmission chain of a wind turbine using position information, measuring position information and generating an actual condition monitoring curve; comparing the actual condition monitoring curve with the reference curve, and determining the current condition of the wind turbine from the comparison. With the proposed monitoring method, monitoring with a high signal-to-noise ratio can be achieved with minimal or no addition of hardware, such as an ND module; moreover, computational task is greatly reduced, so that the monitoring system can be more easily integrated into the main control system. In addition, the position measurement system is more stable than a vibration measurement system, and the monitoring result is more reliable.

Abstract: An oil sealing structure of a motor includes a cover and at least one sealing element. The motor has a shaft, a fluid bearing and a bushing. The fluid bearing mounts to the shaft and is accommodated in the bushing. The cover is disposed around the shaft and is connected with an opening of the bushing. The sealing element is disposed around the shaft and between the fluid bearing and the cover. A fan and a motor including the above-mentioned oil sealing structure are also disclosed.

Abstract: A method and an apparatus for quantitatively detecting the unbalanced state of a rotating shaft and a clamping state of a workpiece clamped to a shaft are disclosed by solving with a nonlinear multivariable method a Lagrange kinematics equation to determine from acquired position, velocity, acceleration and torque signals of the rotating shaft an unbalanced amplitude variable and an unbalanced angle variable of the rotating shaft, optionally both with and without a workpiece. The motor driving the shaft is energized with a combined S-shaped and sinusoidal velocity profile with a position profile component, a velocity profile component, and an acceleration profile component. The components are selected such that the motor speed during the accelerating and decelerating stages does not change abruptly.

Abstract: A fan includes a motor and an impeller. The motor drives the impeller to rotate and includes a base, a bearing, a stator, a rotor and a magnetic element. The central portion of the base is extended to form a bushing for accommodating the bearing therein. The stator telescopes around the bushing. The rotor is disposed corresponding to the stator and has a shaft passing through the bearing. The magnetic element is disposed at the bottom of the bushing and located adjacent to one end of the shaft.

Abstract: A method and an apparatus for quantitatively detecting the unbalanced state of a rotating shaft and a clamping state of a workpiece clamped to a shaft are disclosed by solving with a nonlinear multivariable method a Lagrange kinematics equation to determine from acquired position, velocity, acceleration and torque signals of the rotating shaft an unbalanced amplitude variable and an unbalanced angle variable of the rotating shaft, optionally both with and without a workpiece. The motor driving the shaft is energized with a combined S-shaped and sinusoidal velocity profile with a position profile component, a velocity profile component, and an acceleration profile component. The components are selected such that the motor speed during the accelerating and decelerating stages does not change abruptly.

Abstract: An oil sealing structure of a motor includes a cover and at least one sealing element. The motor has a shaft, a fluid bearing and a bushing. The fluid bearing mounts to the shaft and is accommodated in the bushing. The cover is disposed around the shaft and is connected with an opening of the bushing. The sealing element is disposed around the shaft and between the fluid bearing and the cover. A fan and a motor including the above-mentioned oil sealing structure are also disclosed.

Abstract: A fan includes a motor and an impeller. The motor drives the impeller to rotate and includes a base, a bearing, a stator, a rotor and a magnetic element. The central portion of the base is extended to form a bushing for accommodating the bearing therein. The stator telescopes around the bushing. The rotor is disposed corresponding to the stator and has a shaft passing through the bearing. The magnetic element is disposed at the bottom of the bushing and located adjacent to one end of the shaft.

Abstract: A forming apparatus includes a workbench and a pivot device. The pivot device includes a pivot plate (40) and a fixed plate (60). The pivot plate is fixed below the workbench, and rotatably seated on the fixed plate. The fixed plate defines two cutouts (66) respectively in two corners thereof, to form an arched-shaped top portion (61). Three locking plates (70) are attached on side walls (42, 46) of the pivot plate. When the locking plates are oriented vertically, they can pass over the two corners corresponding to the cutouts but cannot pass over other corners of the fixed plate. When the locking plates are oriented horizontally, they can pass over every corner of the fixed plate. By adjusting orientations of the locking plates, the combined base and pivot plate can be rotated within a variety of predetermined different angles.

Abstract: A forming apparatus includes a workbench and a pivot device. The pivot device includes a pivot plate (40) and a fixed plate (60). The pivot plate is fixed below the workbench, and rotatably seated on the fixed plate. The fixed plate defines two cutouts (66) respectively in two corners thereof, to form an arched-shaped top portion (61). Three locking plates (70) are attached on side walls (42, 46) of the pivot plate. When the locking plates are oriented vertically, they can pass over the two corners corresponding to the cutouts but cannot pass over other corners of the fixed plate. When the locking plates are oriented horizontally, they can pass over every corner of the fixed plate. By adjusting orientations of the locking plates, the combined base and pivot plate can be rotated within a variety of predetermined different angles.