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396results about How to "Easy connection" patented technology

System and method for data synchronization between heterogeneous databases and storage medium

The invention provides a system and method for data synchronization between heterogeneous databases and a storage medium. The method is applied to a data synchronization process between heterogeneousdatabases. The system comprises an acquisition plug-in unit, a write-in plug-in unit and a data processing center, the plurality of databases are connected with the data processing center in a star mode through the acquisition plug-in unit and the write-in plug-in unit; the data processing center comprises a plurality of synchronous execution nodes; the plurality of synchronous execution nodes carry out data synchronization in a distributed execution mode; the adapter is adopted to adapt to collection and writing of various heterogeneous databases; a unified intermediate data format is adoptedfor transmission; connection between different source ends and target ends is simplified, the data collection efficiency is improved, the expansibility is very high, receiving, distribution, receiving and load balancing of synchronous tasks are achieved through a unified synchronous task controller, data synchronization operation is executed in parallel in a multi-channel mode, and therefore theexecution efficiency is further improved.
Owner:XIAMEN MEIYA PICO INFORMATION

Pile holding machine

The invention discloses a pipe holding machine, and belongs to the field of wind power installation machinery. The pile holding device comprises a mounting seat, a main pushing mechanism and a clamping arm assembly. The clamping arm assembly comprises a first clamping arm, a second clamping arm, a third clamping arm, a first pile holding cylinder, a second pile holding cylinder, an opening and closing cylinder, a plurality of correction cylinder assemblies and a boom cylinder assembly. The boom cylinder assembly includes a boom cylinder, a fixed arm and a boom. When the first pile holding cylinder, the second pile holding cylinder and the opening and closing cylinder are extended, the first clamping arm, the second clamping arm and the third clamping arm are closed, after the clamping armsare closed, the elongation length of the correction cylinder assemblies is adjusted, and the verticality of a foundation pile is adjusted in time. When a certain height difference occurs when the second end of the second clamping arm and the second end of the third clamping arm are closed, the height adjustment of the second end of the third clamping arm is achieved by the boom cylinder, so thatthe second end of the second clamping arm and the second end of the third clamping arm is kept on the same plane to facilitate the connection between the second end of the second clamping arm and thesecond end of the third clamping arm, the operation is simple, and time and labor are saved.
Owner:WUHAN MARINE MACHINERY PLANT

Intelligent shore power system and grid connection method

The invention relates to an intelligent shore power system which comprises a variable-frequency power source, a switching network and an electric reactor. The variable-frequency power source comprises a rectifying module, an inversion module, a bus, a variable-frequency power source controller, a communication module and a power grid sampling module, wherein the rectifying module, the bus, the inversion module, the variable-frequency power source controller, the power grid sampling module, the switching network and the electric reactor are sequentially connected; the power grid sampling module obtains external ship power grid information in real time and transmits the external ship power grid information to the variable-frequency power source controller, the variable-frequency power source controller controls the switching network to switch power grid systems to be matched with a ship power grid according to the external ship power grid information, and shore power grid information is generated; when the external ship power grid information and the shore power grid information are the same, the variable-frequency power source controller controls the inversion module to be connected with the electric reactor, and after voltage is stabilized, the variable-frequency power source controller controls disconnection of an external marine auxiliary machine and the ship power grid through the communication module.
Owner:SHENZHEN CLOU DRIVE TECH CO LTD

Connecting structure of section steel support and concrete support, and construction method

The invention provides a connecting structure of a section steel support and a concrete support. The connecting structure comprises an H section steel support, an H steel structure connecting piece and a reinforced concrete support, and is characterized in that the steel structure connecting piece and the reinforced concrete support are stacked together horizontally; a pre-buried connecting bolt is arranged on the reinforced concrete support; one side of the steel structure connecting piece is connected with the reinforced concrete support through the pre-buried connecting bolt in a detachable manner; and the other side of the steel structure connecting piece is connected with the section steel support through a detachable high-strength bolt. The section steel support and the reinforced concrete support are combined in a foundation pit supporting plane, reinforced concrete structures are adopted in longer diagonal braces or angle braces and irregular rim positions, and section steel structures are adopted in regular rims and the positions of shorter diagonal braces or angle braces. Connection contacts have the advantages of high shear strength, recycling and reusing of section steel and the like, are convenient and fast to connect, and can achieve the purposes of construction period reduction, construction cost reduction and low carbon and environmental protection of the foundation pit supporting engineering.
Owner:SHANGHAI STRONG FOUND ENG

Power battery and high-voltage distribution box integrated control system for blade electric vehicle

The invention provides a power battery and high-voltage distribution box integrated control system for a blade electric vehicle. The system comprises a battery pack lower shell box with a battery pack internally installed. The battery pack lower shell box seals the battery pack through a battery pack upper shell cover and a battery pack fixing support. A power battery positive electrode and a power battery negative electrode are arranged in the battery pack lower shell box. A manual maintenance power-off switch is arranged between the power battery positive electrode and the power battery negative electrode. The power battery positive electrode is connected with the contact switch input end of an MCU pre-charging relay, the contact switch input end of a quick charging relay, the contact switch input end of a general positive relay, the contact switch input end of a slow charging relay and the contact switch input end of an electric heating relay in parallel through wires. The power battery negative electrode is connected with the contact switch input end of a general negative relay. The power battery and high-voltage distribution box integrated control system has the beneficial effects that the production cost of the electric vehicle can be reduced, the dead weight of the electric vehicle is reduced, and the installation space of the electric vehicle is saved.
Owner:HENAN LIXIANG POWER TECH CO LTD

Modularized single-chip microcomputer experiment box

The invention is suitable for the field of a teaching device of electronic circuit technology and provides a modularized single-chip microcomputer experiment box. The modularized single-chip microcomputer experiment box comprises a box body. The box body is provided with function modules, a power module and a plurality of connection lines. The box body comprises an upper cover and a bottom housing for storing the function modules and the connection lines. The upper cover is arranged on the bottom housing, and the upper cover is equipped with an operation panel for detachably mounting the function modules. Through the bottom housing, the function modules and the connection lines are stored in the bottom housing; through the operation panel, when single-chip microcomputer experiment teaching is to be carried out and required functions are to be demonstrated, one only needs to take the selected function modules out of the bottom housing, and then, mounts the function modules to the operation panel, and finishes connection through the connection lines, so that simple and convenient connection is realized, and the selected function modules are not influenced by other un-selected function modules; and besides, when a new function is to be demonstrated, one only needs to add a new function module, thereby facilitating expanding and meanwhile, facilitating maintenance of each function module.
Owner:GTA INFORMATION TECH

Fabricated steel bridge and installation method thereof

The invention relates to the technical field of bridge construction and discloses a fabricated steel bridge. The fabricated steel bridge comprises a left truss, a right truss and cross beams, whereinthe cross beams are paved with bridge plates, and the bridge plates comprise first sub-plates and second sub-plates which are sequentially arranged in the length direction of the bridge; first bolts are arranged on the ends, close to the second sub-plates, of the first sub-plates, and second bolts are arranged on the ends, close to the first sub-plates, of the second sub-plates; each first sub-plate is slidingly connected with an insert in the length direction of the bridge, an insertion hole for the insert to be inserted is formed in each second sub-plate, each insert is provided with a wedgeblock positioned in the corresponding first sub-plate, the lower side of each wedge block is provided with an inclined plane inclined downward toward the direction of the corresponding insertion hole, the side, far away from the second bolt, of each wedge block abuts against the first bolt, and a nut matched with each first bolt abuts against the upper side of the corresponding wedge block. The sub-plates are connected, so that the sub-plates form a whole to prevent the sub-plates from shifting or falling off after the connection between the sub-plates and the cross beams is loosened or fallsoff, thus reducing potential safety hazards.
Owner:NANTONG CHENGXIN MUNICIPAL ENG CO LTD
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