Abstract: A current sensor comprises a to-be-measured current input component composed of a first current shunting copper bar, a second current shunting copper bar and a differential copper bar that are arranged in the same direction respectively; and a signal output component composed of a substrate and a magnetic induction module fixed on the substrate. The signal output component is electrically isolated from said current input component. Current to be measured flows through a cross section perpendicular to the first current shunting copper bar, the second current shunting copper bar, and the differential copper bar, and generates a magnetic field at the position of the magnetic induction module. The magnetic induction module at least comprises a first magnetic induction unit and a second magnetic induction unit.

Abstract: Provided is a current sensor. An input module thereof comprises a differential copper bar and a current shunting copper bar connected in parallel. A current to be measured flows through the differential copper bar and the current shunting copper bar and generates a magnetic field at the positions of high and low current detection modules. In the high current detection module, a first magnetic induction module is secured on a circuit board and placed in an internal gap of the input module. The first magnetic induction module at least comprises a first and a second magnetic sensing units. The first and second magnetic sensing units differentially sense a magnetic field of the input module and form an out signal through a first signal output module. In the low current detection module, a second magnetic induction module is secured on a circuit board and placed outside the input module. The second magnetic induction module at least comprises a third and fourth magnetic sensing units.

Abstract: Disclosed is a current sensor. In the current sensor, a primary-side current input copper bar comprises a differential copper bar area and a current shunting copper bar area connected in parallel. The differential copper bar area comprises a current conduction path in a U-shaped structure. The number of the current shunting copper bar area is one or more. Any current shunting copper bar area is placed with the differential copper bar area in a same horizontal plane or in different horizontal plane. The primary-side current input copper bar is integrally formed, or is formed by connecting more than one independent copper bars. A magnetic induction module secured on a circuit board is located above the current conduction path of U-shaped structure in the differential copper bar area. An output of the magnetic induction module forms an output signal of the current sensor.

Abstract: A current detection device with stepped copper bar comprises a circuit board, a magnetic induction module and a stepped copper bar. A magnetic induction module comprises a first magnetic sensing unit, and a second magnetic sensing unit. The side of the stepped copper bar facing the magnetic induction module comprises a first step and a second step, which are different from each other. The first magnetic sensing unit is located above the first step, and the second magnetic sensing unit is located above the second step. A current to be measured flows through the cross section perpendicular to the stepped copper bar. The first magnetic sensing unit and the second magnetic sensing unit sense, in a differential manner, a differential mode magnetic field generated by said current flows through the stepped copper bar; and generate differential voltage signals and output the signal.

Abstract: A method is provided. The method comprises obtaining a first data stream; querying a query table to seek for storage information of a second data stream corresponding to the first data stream in a database, wherein a plurality of second data streams are stored in the database, one or more valid second data streams are included in the plurality of second data streams, and storage information of each of the one or more valid second data streams in the database is included in the query table; and in response to having found in the query table the storage information of the second data stream corresponding to the first data stream in the database, determining, in the database, the second data stream to be spliced with the first data stream based on the storage information of the second data stream.

Abstract: The objective of the present invention is to provide a method, apparatus, computing node and computer program product for fault handling in a stream computing system. Here, at a computing node, recording arrival sequences of respective original data from a upstream computing node; performing persistence operation on the respective original data according to a predetermined period; in the case of failure and restart, restoring to-be-computed data in internal storage from the original data subjected to the persistent operation and/or the upstream computing node, and replaying and computing the restored to-be-computed data according to the respective previous arrival sequences; continuing encoding each completely computed result data according to offset of the result data in the last persistent operation period before the failure and transmitting the encoded result data to a next node.

Abstract: The objective of the present invention is to provide a method, apparatus, computing node and computer program product for fault handling in a stream computing system. Here, at a computing node, recording arrival sequences of respective original data from a upstream computing node; performing persistence operation on the respective original data according to a predetermined period; in the case of failure and restart, restoring to-be-computed data in internal storage from the original data subjected to the persistent operation and/or the upstream computing node, and replaying and computing the restored to-be-computed data according to the respective previous arrival sequences; continuing encoding each completely computed result data according to offset of the result data in the last persistent operation period before the failure and transmitting the encoded result data to a next node.