31results about How to "Reduce tracking costs" patented technology

The object of the present disclosure lies at least in providing a multi-assembly tracking control system for solar photovoltaic module, which may control multiple sets of photovoltaic module assemblies simultaneously, so as to enable a single-axis tracking in one direction or a two-axis tracking in two directions. It is able to receive the sunlight in a most efficient manner under various climate and deployment conditions, to greatly raise the power generation efficiency and to enhance the stability of the whole system.

The invention provides a photovoltaic biaxial linkage tracking system, and relates to a photovoltaic module subsystem biaxial tracking system. The photovoltaic biaxial linkage tracking system is characterized by comprising a plurality of independent photovoltaic tracking assembly subsystems which are arranged in longitudinal lines in tandem along a first direction and connected through universal couplers. Each photovoltaic tracking assembly subsystem comprises a fixed beam truss structure (220), wherein a plurality of photovoltaic panel installation positions are arranged on the upper front surface of the fixed beam truss structure (220), fixed ends for hauling cables (308) are installed under two sides of the back surface, and the plurality of photovoltaic panel installation positions are used for installing photovoltaic panels; and a first direction rotating shaft of one photovoltaic tracking assembly subsystem in the middle of the subsystems which are arranged in longitudinal lines in tandem is connected to a first direction rotation control mechanism through a universal coupler, the first direction rotation control mechanism controls the rotation of the first direction rotating shaft, and a second direction rotating shaft control rod of the photovoltaic tracking assembly subsystem in the middle of the subsystems which are arranged in longitudinal lines in tandem is connected to a second direction rotation control mechanism.

A solar concentrator is composed of the cascading of the first light guiding module and a second light guiding module. The solar light is collected and guided simultaneously toward the light propagation destination by the light guiding modules. By cascading the light guiding modules in the direction of guiding, the solar concentrator has thinner thickness than the traditional concentrator and has a zero back focal distance to reduce the assembly cost. The solar concentrator utilizes the optical design concept of coincident image points from both the relay and converging optics such that the optical flux is increased in the cascading light guiding modules while the light propagation direction within the concentrator is maintained.

The present invention discloses a multi-camera cooperation relay monitoring method based on known tracks. The method is applied to a track network connected and formed by a plurality of tracks, wherein a plurality of mobile nodes are randomly distributed in the track network, and each mobile node can move in any track and on any vertex, each mobile node can only monitor the targets at its edge and vertex, and each track of the network topological structure formed by the track network corresponds to one side of the network topological structure map and the junction points of the tracks correspond to the vertexes of the network topological structure map. The method reduces the cost of mobile monitoring, improves the monitoring range and security, and has a wide range of applications.

The invention discloses an X-ray contraband package tracking method and device, wherein when a first package trigger detects a package, an X-ray scanning device performs X-ray scanning on the package to obtain a first X-ray image, a first package position and a The first sequence of information is sent to the server, and when the server detects that the first X-ray image includes contraband information, the server starts the barcode scanning device to obtain the barcode image of the package, and sends the barcode image to the server, so that the server can identify the package barcode according to the package barcode and receive it. When the second package position and the second sequence information of the package are reached, the second package position and the second sequence information are sent to the server, so that the server can send the second package position and the first package position, and the second sequence information and the first sequence information. The information is compared respectively, and the sorting instruction is sent to the sorting controller, so that the sorting controller receives the sorting instruction, and controls the manipulator to push the current contraband package into the sorting line, so as to realize the tracking of the corresponding package, improve the tracking efficiency, reduce the Track costs.

The invention relates to a composite paraboloidal photovoltaic hot-water heat collector which comprises a curved reflecting mirror and a photovoltaic absorbing body, wherein the cross section of the curved reflecting mirror is in a W shape, the curved surfaces at both sides are paraboloids, the curved surfaces at both sides of the inner bending position of the bottom are circle involute curved surfaces, and the connecting position of the paraboloids and the circle involute curved surfaces carry out smooth transition; a U-shaped pipe of the photovoltaic absorbing body is positioned between twolayers of cell boards, and a heat insulating material is filled between the U-shaped pipe and the two layers of cell boards; three-circuit photovoltaic cells are respectively and uniformly distributed on the outer sides of the of the two layers of cell boards, and the two layers of photovoltaic cells are connected in parallel; and the photovoltaic absorbing body is horizontally positioned in the connecting position of the circle involute curved surfaces at both sides of the middle of the curved reflecting mirror. The invention can simultaneously generate power and hot water, improve the efficiency of the photovoltaic cells, the utilization ratio of solar energy in low power focus and the utilization ratio of the solar energy in low power spotlight, has no tracing, is convenient for use and fully utilizes the reflection of light rays.

The invention relates to the field of underwater robotics, particularly to a method of tracking an underwater robot by use of an on-water robot to achieve autonomous tracking of the underwater robot by the on-water robot. The underwater robot starts an underwater acoustic communication set MA installed on the back of the underwater robot, and sends navigational state information of the underwater robot periodically to an underwater acoustic communication set MB installed at the bottom of the on-water robot; the underwater acoustic communication set MB sends the navigational state information to an on-water robot computer; the on-water robot computer calculates and outputs a heading angle control command and a speed control command so that the on-water robot moves in accordance with the control commands. The device provided by the invention requires only one on-water robot and two underwater acoustic communication sets with no other auxiliary devices; the underwater acoustic communication sets are easy to install and can be installed anywhere on the back of the underwater robot or at the bottom of the on-water robot; and the autonomous tracking algorithm program is convenient to transform and suitable for various robots.

The invention discloses a vehicle position dynamic monitoring method and a vehicle position dynamic monitoring system. RFID TAGs are arranged on locomotives and trucks, and vehicle identification devices such as a RFID card reader and a RFID antenna are arranged at an important access position; and when the locomotives or the trucks pass through the RFID device, the RFID device reads related information and transfers the information to a management control center server through a network mode. The management control center server also acquires information such as railway section occupation, switch state and signal lamps from a railway microcomputer interlocking system through a network communication mode. The server realizes the vehicle number identification and position tracking of vehicles based on a vehicle presumption algorithm plus a small amount of RFID card readers according to summary field real-time information. The railway track vehicle tracking by adopting the method has the advantages of low cost, high efficiency and low error rate.