Abstract: In the method, a server obtains data of a first communication ID, where the first communication ID is associated with a first device ID and a first account ID; detects whether the first communication ID is a suspected harassment communication ID; in response to that the first communication ID is the suspected harassment communication ID, obtains a second communication ID, where the second communication ID includes a communication ID associated with the first device ID and a communication ID associated with the first account ID; detects, based on data of the second communication ID, whether the second communication ID is the suspected harassment communication ID; and in response to that the second communication ID is the suspected harassment communication ID, bans the first device ID, the first account ID, and a second device ID and a second account ID that are associated with the second communication ID.

Abstract: This application provides a water conservancy project operation trend prediction method. The method includes: acquiring to-be-processed initial monitoring data, and determining a first type of monitoring data and a second type of monitoring data according to the initial monitoring data; determining a target nonlinear fitting model from a preset nonlinear fitting model set according to the second type of monitoring data; and predicting the state of a target water conservancy project by a new model constructed by combining the target nonlinear fitting model with the models in the preset prediction model set.

Abstract: A malicious anchor node detection and target node localization method based on recovery of sparse terms, includes: S1: establishing an unknown disturbance term by using ranging value attack terms from an attacker to nodes in a wireless sensor network, and introducing a to-be-estimated location of a target node to the unknown disturbance term, to obtain an unknown sparse vector; S2: converting a problem of malicious anchor node detection and target node localization into a problem of recovery of the unknown sparse vector; S3: determining a location of an initial node according to a recursive weighted linear least square method, and recovering and reconstructing the unknown sparse vector with sparsity; and S4: determining a malicious anchor node determination range by approximating a threshold using a recovered value of the unknown sparse vector, to implement malicious anchor node detection, and recovering and determining location information of the target node.

Abstract: A one-hand operation method and an electronic device are provided. The method includes: displaying a first interface, where the interface is a user interface displayed on a screen; detecting a first trigger operation of a user; and displaying a floating interface based on the first trigger operation. After the user enables a “floating screen” function, the electronic device determines, based on an obtained length of a thumb of the user and an obtained position at which the user holds the electronic device, a region that can be operated by the user with one hand, and then presents the floating interface in that region.

Abstract: A malicious anchor node detection and target node localization method based on recovery of sparse terms, includes: S1: establishing an unknown disturbance term by using ranging value attack terms from an attacker to nodes in a wireless sensor network, and introducing a to-be-estimated location of a target node to the unknown disturbance term, to obtain an unknown sparse vector; S2: converting a problem of malicious anchor node detection and target node localization into a problem of recovery of the unknown sparse vector; S3: determining a location of an initial node according to a recursive weighted linear least square method, and recovering and reconstructing the unknown sparse vector with sparsity; and S4: determining a malicious anchor node determination range by approximating a threshold using a recovered value of the unknown sparse vector, to implement malicious anchor node detection, and recovering and determining location information of the target node.

Abstract: The present invention discloses a displayer screen hanging lamp, comprising a lamp body and a fixed bracket, wherein the lamp body comprises a lamp housing, a lens and a light source; the fixed bracket comprises an regulating frame, a support clamping mechanism and two clamping legs; the lamp body is connected and fixed with the regulating frame which is installed onto the support clamping mechanism, the forepart of the bottom of the support clamping mechanism is equipped with two clamping feet extending downward; the whole fixed bracket is clamped onto the displayer via the clamping feet and the clamping legs; the clamping feet clamp the front surface of the top of displayer and the clamping legs are rotated to change the clamping angle to clamp the back of displayer.

Abstract: A power inductor includes a core and winding. The winding has at least two portions, one made of pure copper and the other made of a low-TCR (temperature coefficient of resistance) alloy, wherein the alloy portion is used to form a current sensor. The two portions are joined to provide a unitary winding. The inductor can provide accurate current detection sensor while minimizing total resistance of the winding.

Abstract: A power inductor includes a core and winding. The winding has at least two portions, one made of pure copper and the other made of a low-TCR (temperature coefficient of resistance) alloy, wherein the alloy portion is used to form a current sensor. The two portions are joined to provide a unitary winding. The inductor can provide accurate current detection sensor while minimizing total resistance of the winding.

Abstract: A switched-mode power supply in a set of parallel-connected switched-mode power supplies is operated to (1) monitor both output current and operating temperature, and (2) auto-tune an output voltage using two-dimensional control that employs a two-dimensional function of the output current and the operating temperature. The two-dimensional function is a sharing function whose use in each of the supplies effects a coordinated sharing of both load current and operating temperature across the set of supplies. Temperature sharing includes monitoring and controlling distribution of operating temperatures across the set of supplies to reduce undesirable temperature imbalance that can cause excessive thermal stress and reduce reliability.

Abstract: A sensing circuit for a power FET. A first sensing FET senses current flow from load to ground. A second sensing FET senses current flow from ground to load. The current flows are converted to voltages, then added to generate a sensed output voltage. The specific amplitude of the sensed output voltage indicates the direction of the current flow. Resistive elements used to convert currents to voltages are configured as pairs of resistors having temperature coefficients of opposite polarity in order to compensate for temperature effects in the sensing circuit.

Abstract: A method for product comparison is described, including: receiving a product comparison request sent by a client terminal, the product comparison request carrying identification information of at least two products to be compared; pulling attribute information of each of the at least two products according to the identification information of each of the at least two products; calculating an integrated score of each of the at least two products according to the attribute information of each of the at least two products; and generating comparison information of the at least two products, and returning the comparison information to the client terminal. Further, a server, a client terminal, and an electronic commerce system are also described. A comparison conclusion can be visually presented in comparison information of products, improving the actual effect and usage rate of the product comparison and enhancing the intelligence of the electronic commerce system.

Abstract: A sensing circuit for a power PET. A first sensing FET senses current flow from load to ground. A second sensing FET senses current flow from ground to load. The current flows are converted to voltages, then added to generate a sensed output voltage. The specific amplitude of the sensed output voltage indicates the direction of the current flow. Resistive elements used to convert currents to voltages are configured as pairs of resistors having temperature coefficients of opposite polarity in order to compensate for temperature effects in the sensing circuit.

Abstract: A switched-mode power supply in a set of parallel-connected switched-mode power supplies is operated to (1) monitor both output current and operating temperature, and (2) auto-tune an output voltage using two-dimensional control that employs a two-dimensional function of the output current and the operating temperature. The two-dimensional function is a sharing function whose use in each of the supplies effects a coordinated sharing of both load current and operating temperature across the set of supplies. Temperature sharing includes monitoring and controlling distribution of operating temperatures across the set of supplies to reduce undesirable temperature imbalance that can cause excessive thermal stress and reduce reliability.

Abstract: A DC/DC converter for use in power supply applications employing multiple parallel-connected converters employs a digital controller referenced to the secondary or output side of an isolation boundary and having non-isolated direct connections to secondary side components. The controller directly monitors output voltage and output current and uses feedback control techniques to precisely control these values in a desired manner. The DC/DC converter can implement so-called “droop” current sharing with increased accuracy arising from the secondary-side digital control, so that a desired balanced sharing of current across multiple converters can be achieved. The converter uses calibration establish accurate set points, and any of a variety of additional functions/features to attain operational goals.

Abstract: A DC/DC converter for use in power supply applications employing multiple parallel-connected converters employs a digital controller referenced to the secondary or output side of an isolation boundary and having non-isolated direct connections to secondary side components. The controller directly monitors output voltage and output current and uses feedback control techniques to precisely control these values in a desired manner. The DC/DC converter can implement so-called “droop” current sharing with increased accuracy arising from the secondary-side digital control, so that a desired balanced sharing of current across multiple converters can be achieved. The converter uses calibration establish accurate set points, and any of a variety of additional functions/features to attain operational goals.

Abstract: A circuit of a display comprises a substrate, at least one thin film transistor, at least one first wire and at least one second wire formed on the substrate. The substrate has an active area and a bonding area. The thin film transistor is disposed in the active area. The first wire is disposed in the bonding area. The second wire includes a first end electrically connected to the first wire, a second end electrically connected to the thin film transistor, an overlap portion overlapping the first wire, and a sacrificing portion between the first end and the second end.

Abstract: A backlight module is disclosed, in which the backlight module includes a lamp, a first wire electrically connected to a first end of the lamp, a second wire electrically connected to a second end of the lamp, and a lamp holder having a groove for supporting the lamp. Preferably, the second wire is fixed in the groove while extending from the second end of the lamp to the first end of the lamp.

Abstract: A circuit of a display comprises a substrate, at least one thin film transistor, at least one first wire and at least one second wire formed on the substrate. The substrate has an active area and a bonding area. The thin film transistor is disposed in the active area. The first wire is disposed in the bonding area. The second wire includes a first end electrically connected to the first wire, a second end electrically connected to the thin film transistor, an overlap portion overlapping the first wire, and a sacrificing portion between the first end and the second end.

Abstract: A circuit of a display comprises a substrate, at least one thin film transistor, at least one first wire and at least one second wire formed on the substrate. The substrate has an active area and a bonding area. The thin film transistor is disposed in the active area. The first wire is disposed in the bonding area. The second wire includes a first end electrically connected to the first wire, a second end electrically connected to the thin film transistor, an overlap portion overlapping the first wire, and a sacrificing portion between the first end and the second end.

Abstract: A backlight module is disclosed, in which the backlight module includes a lamp, a first wire electrically connected to a first end of the lamp, a second wire electrically connected to a second end of the lamp, and a lamp holder having a groove for supporting the lamp. Preferably, the second wire is fixed in the groove while extending from the second end of the lamp to the first end of the lamp.