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253 results about "ControlNet" patented technology

ControlNet is an open industrial network protocol for industrial automation applications, also known as a fieldbus. ControlNet was earlier supported by ControlNet International, but in 2008 support and management of ControlNet was transferred to ODVA, which now manages all protocols in the Common Industrial Protocol family.

System and method for fast precise measurement and total factor data acquisition of high speed railway

The invention relates to the field of precise railway measurement, high speed railway rail detection and security and digital railway, in particular to a system and a method for carrying out movable precise measurement of the high speed railway and synchronously obtaining total factor data along the line of the railway on the basis of GPS (Global Positioning System) / IMU (Inertia Measurement Unit) positioning and orientation, laser scan and digital imaging technologies. The invention further relates to a special railway measurement mark. The system consists of a laser scanner (1), a digital imaging device (2), a GPS receiver (3), an IMU (4), an industrial computer (5) and a power supply unit (6), and the system can obtain three-dimensional point clouds of rail, roadbed and peripheral environment of the high speed railway and digital images oriented by the earth. The method comprises a method for carrying out movable precise measurement movable precise measurement of the high speed railway and a method for improving the measurement precision by carrying out the simultaneous adjustment with a control point of a rail control network (such as a CPIII foundation pile control network). The system has high integration degree and has the characteristics of high efficiency and high precision, and the precision of the data can reach millimeter level.
Owner:扬州德可达科技有限公司

Method and device for processing observation data of control points in three-dimensional control network

The invention relates to a method and device for processing observation data of control points in a three-dimensional control network, and belongs to the technical field of data processing. The methodcomprises the steps of: obtaining the observation data, including azimuth angles, zenith distances and slant distances, of all control points in a three-dimensional control network; according to theobservation data of each control point, calculating coordinates of each control point under a corresponding observation station coordinate system, wherein a corresponding observation station is an observation station of an actual measurement control point; and selecting the observation station coordinate system of one control point as a reference coordinate system, and calculating the coordinatesof each control point under the reference coordinate system according to the rotation relationship between the observation stations of the remaining control points and the normal lines on the observation stations of the selected control points in combination with the coordinates of each control point under the corresponding observation station coordinate system. Compared with the prior art, by considering the influence of plumb line non-parallelism, the observation data of the control points is modified, and an adjustment result after modification is high in accuracy.
Owner:PLA STRATEGIC SUPPORT FORCE INFORMATION ENG UNIV PLA SSF IEU +1

Method for automatically measuring coordinates of target point of fully mechanized coal mining face and measuring robot system

The invention relates to a method for automatically measuring coordinates of a target point of a fully mechanized coal mining face and a measuring robot system. According to the embodiment of the invention, a gyro total station searches a known control point identifier and identifies a point number of the known control point identifier, and queries the point number and a corresponding geodetic coordinate in a control point data file or a database; the geodetic coordinates of the gyroscopic total station are determined according to the geodetic coordinates of the control points, the true northorientation angles of the coordinates from the control points to the gyroscopic total station and the angle distance measurement values of the gyroscopic total station; and according to the searchingazimuth angle and the angle range parameter, a fixed or moving target point identifier is searched in the fully mechanized coal mining face, the point number is identified, the geodetic coordinate ismeasured and calculated, and thus, geodetic coordinate-based relay conduction and positioning of the target point in the fully mechanized coal mining face of the mine are realized. A plurality of gyroscopic total stations can also be installed on the fully mechanized coal mining face to form a geodetic coordinate control network, and full coverage of the geodetic coordinate measurement area of thefixed or moving target point of the fully mechanized coal mining face is achieved.
Owner:BEIZHING LONGRUAN TEKNOLODZHIS INK

Hybrid overlay communication method for data center network

The invention particularly relates to a hybrid overlay communication method for a data center network. According to the hybrid overlay communication method for the data center network, a vSwitch hostand EVPN network element equipment based on different implementation modes are managed to an SDN controller through OpenFlow; the SDN controller uses an OVSDB management protocol to issue a configuration and control flow table to the vSwitch host through Rest and RPC modes, and uses a NetConf protocol to control interface configuration and a network strategy on an EVPN network element; the underlay network publishes a management IP of an EVPN network element to a data link by using an OSPF protocol, and connects a vSwich host and the EVPN network element through a routing switch, thereby realizing two-layer interconnection between devices, and realizing fusion of different types of data centers from a control layer and a data layer. According to the hybrid overlay communication method forthe data center network, the fusion of different network architectures on the same platform is solved, the expandability and extensibility of the network are improved, the management cost is reduced,and the network communication quality is greatly improved.
Owner:山东汇贸电子口岸有限公司

Method for measuring CPII control network in long and large tunnel with receiving well

InactiveCN111623757AHigh mesh strengthHigh precisionSurveying instrumentsStationTotal station
The invention discloses a method for measuring a CPII control network in a long and large tunnel with a receiving well, and relates to the field of control network measurement of rail transit. The measurement method mainly comprises the steps of (1) CPII remeasurement and encryption outside a hole: forming a triangular or geodetic quadrilateral connected strip-shaped net by adopting a GNSS staticmeasurement mode and an edge connection type net, and performing unified adjustment; (2) receiving well connection measurement: carrying out in-hole introduction edge measurement by adopting a one-well orientation principle, calculating the coordinates of a reflective sticker fixed by a steel wire on the ground through edge measurement and angle measurement of a ground total station, transmittingthe coordinates of the reflective sticker below the vertical shaft to the coordinates of the reflective sticker below the vertical shaft through the steel wire for orientation again, and then introducing the coordinates into the point position buried in the tunnel (3) CPII measurement in the tunnel: adopting a free observation station method; (4) data processing; and (5) final result checking. Themethod provided by the invention is good in point position stability, high in net type strength and flexible in observation station arrangement; the centering error is reduced, and the angle and distance measurement precision is improved.
Owner:CHINA RAILWAY SIXTH GRP CO LTD +1

Whole vehicle network management method, device and system and computer equipment

ActiveCN111698107AImplement synchronous wake-up operationImplement synchronous sleep operationHigh level techniquesBus networksTelecommunicationsNetwork management
The invention relates to a whole vehicle network management method, device and system and computer equipment, and the method comprises the steps: controlling a gateway of a whole vehicle network to send wake-up information to all network segments of the whole vehicle network when at least one network management node in the whole vehicle network is awakened; when the whole vehicle network meets thesleep condition, enabling the control gateway to send sleep information to each network segment at the same time; when the whole vehicle network does not meet the sleep condition, enabling the control gateway to send sleep prohibition information to each network segment at the same time. According to the scheme, as long as at least one network management node in the whole vehicle network is awakened, the gateway can be controlled to send awakening information to all network segments at the same time; meanwhile, only when the whole vehicle network meets the sleep condition, the gateway can becontrolled to send sleep information to each network segment of the whole vehicle network. Therefore, cross-network-segment synchronous awakening and cross-network-segment synchronous sleep operationof the whole vehicle network are truly achieved, and compared with a traditional OSEK network management mechanism, the OSEK network management mechanism has the advantage of being high in operation reliability.
Owner:SHANGHAI OUFEI INTELLIGNET VEHICLE INTERNET TECH CO LTD

Narrow-space long-span multi-surface special-shaped combined steel truss installation construction method

The invention relates to the technical field of combined steel truss installation construction, in particular to a narrow-space long-span multi-surface special-shaped combined steel truss installationconstruction method. The method is characterized in that a BIM technology is utilized to optimize arcs and establish a high-level control network, and field data is finely adjusted in combination with a computer; during field construction, steel truss segments are spliced, full hall scaffold operation platforms and supporting frames are erected at building structure ends and steel truss connection parts synchronously, and a main truss is formed through assembling and welding; and then sliding units are formed through connection of secondary trusses among main trusses, and existing concrete linking beams are utilized to arrange sliding tracks, and in-place sliding is performed according to a structure accumulating sliding mode. Through the method, the quantity of scaffolds in use can be greatly reduced, the method is safe and reliable, most overhead work is reduced, construction is convenient, a machine used for lifting is relatively small, and mechanical cost is low. The method is mainly applied to the technical field of combined steel truss installation construction.
Owner:CHINA SHANXI SIJIAN GRP

Software-defined data gateway

The invention provides a software-defined data gateway. The software-defined data gateway comprises an equipment layer, a gateway layer and an application layer, wherein all physical devices form a device layer, the data gateway body comprises a management node and a gateway node, the management node is deployed in an application layer, and the gateway node is deployed in a gateway layer; the gateway layer further comprises a sensing node; the physical equipment of the equipment layer reports the data to the sensing node and receives a control instruction issued by the sensing node; the sensing node uploads the data to the gateway node, and transmits a data analysis result to the physical equipment in a downlink manner; the gateway node performs high-speed caching and persistent storage onthe acquired data according to application requirements, and forwards the data to other gateway nodes needing to use the data; the management node detects all gateway nodes, monitors load conditionsand health states of the gateway nodes, and controls starting, stopping and load balancing of the gateway nodes; and data synchronization is performed among the management nodes. According to the software-defined data gateway, industrial Internet-of-things data acquisition, storage and forwarding are realized in a software definition mode.
Owner:NAVAL UNIV OF ENG PLA

Grid-side circuit breaker and machine-side switch control strategy for converter of wind generating set

The invention provides a wind generating set converter grid-side circuit breaker and machine-side switch control strategy which comprises the following steps: S1, acquiring the state of a wind generating set, and judging the current state of the wind generating set; S2, when the current state is that the unit is in a fault state, judging whether the fault is a converter fault or not; S3, if the current transformer fails, the current transformer does not respond to the torque instruction of the main control system any more, and the network side circuit breaker being disconnected; and S4, if thefault is a non-converter fault, the converter continuing to respond to the torque instruction of the main control system, the main control system judging the type of the generated fault and controlling the load shedding of the converter at the corresponding load shedding rate, and the converter controlling the modulation of the grid-side converter and the breaking of the grid-side circuit breakeraccording to the corresponding fault type. The strategy can reduce the opening and closing times of the grid-side circuit breaker and the machine-side switch of the converter to the maximum extent onthe premise of ensuring the safe and stable operation of the wind generating set, and prolong the service life of the circuit breaker.
Owner:CSIC CHONGQING HAIZHUANG WINDPOWER EQUIP

Going-to-register notifying method and system for base station

The invention discloses a going-to-register notifying method and a going-to-register notifying system for a base station. In a technical scheme adopted by the invention, when needing to stop operation, a base station sends an S1 reset message to a control network element which establishes S1 connection with the base station, wherein the S1 reset message carriers a base station resource release instruction information; or when needing to stop the operation of the base station, the control network element sends an S1 reset message to the base station, wherein the S1 reset message carries the base station resource release instruction information. In the technical scheme adopted by the invention, the going-to-register notification of the base station is accomplished by reusing the conventional S1 reset message, the related realization flow of the going-to-register notification of the base station is specified, and the method and the system are simple and easy to implement; and according to the technical scheme adopted by the invention, the going-to-register notification can be initiated by the base station according to actual needs or by the control network element, and the realization is very flexible. Thus, the base station and the control network element can release resource according to needs so as to help to regulate network plan and related resource in time.
Owner:ZTE CORP
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