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91 results about "Independent group" patented technology

Independent Group. The Independent Group (IG) were a radical group of young artists, writers and critics who met at the Institute of Contemporary Arts (ICA) in London in the 1950s, and challenged the dominant modernist (and as they saw it elitist) culture dominant at that time, in order to make it more inclusive of popular culture.

Jet vane and air vane linkage mechanism of aircraft

The invention discloses a jet vane and an air vane linkage mechanism of an aircraft. The linkage mechanism comprises a combustion chamber, an exhaust pipe, an exhaust pipe cover, a ball screw drive mechanism, a jet vane deflection mechanism and an air vane deflection mechanism, a servo motor rotor is connected with a lead screw through a coupling, the lead screw drives a lead screw nut to conduct linear motion in a rotary mode, so that an actuating rod and a piston actuator controls the jet vane and the air vane to conduct linkage deflection, and the deflection angles close to the same; and a motor fixing frame and a screw support frame are overlapped and fixed through the arc surface and the inner surface of the exhaust pipe cover, and the lead screw nut and the air vane are cooperatively transmitted through a cylinder bore piston structure. According to the jet vane and the air vane linkage mechanism of the aircraft, the structure is simple, mechanical transmission is stable, vane pieces are of cross-shaped layout, a steering engine can control the vane pieces to deflect flexibly, the jet vane and the air vane conduct linkage deflection, the efficiency of aircraft handling is improved greatly, four independent groups of the jet vanes and the air vanes are in linkage so that the flight attitude of the aircraft can be adjusted quickly, and the mobility of the aircraft can be improved greatly.
Owner:NANJING UNIV OF SCI & TECH

Method and apparatus for monitoring buffer contents in a data communication system

A method and apparatus for buffering data units in a communication switch that allows for configurable monitoring of the buffer contents is presented. Such an apparatus includes a context table that stores a plurality of independent group identifiers for each connection. Although the group identifiers may include a partition group identifier and a loss group identifier that is dependent on the partition group identifier, additional group identifiers are included in the context table for each connection that are independent of other group identifiers in the context table. Such a context table may be dynamically reconfigured in order to group connections for buffer monitoring operations related to congestion detection, traffic shaping, and data admission with respect to buffering. When a data unit is received corresponding to a particular connection, the context table is referenced to retrieve the set of group identifiers corresponding to that connection. As a cell is stored in the buffer, count values corresponding to at least some of the group identifiers included in the set of group identifiers for that connection are incremented. Similarly, when data is dequeued from the buffer for forwarding, the set of group identifiers for that particular data unit is determined and the counters corresponding to at least some of those groups are decremented. As such, the count value corresponding to each of the groups can be referenced to determine the number of data units corresponding to that group that are currently stored within the buffer.
Owner:ALCATEL LUCENT CANADA

Autonomous navigation observation platform control system based on wave energy propelling

The invention discloses an autonomous navigation observation platform control system based on wave energy propelling. The autonomous navigation observation platform control system comprises an online monitoring device, two sets of control systems, and three independent groups of solar power generation devices, wherein the two sets of control systems respectively comprise an embedded controller, a navigation device, a positioning device, a communication device, a steering device, a platform internal state monitoring device and a measuring device. Under normal conditions, one set of system serves as a master for working, while the other set of system is in a hot spare state; the online monitoring device is used for monitoring and coordinating the work of the two sets of control systems and regularly acquiring the state information of the two sets of control systems; after finding the abnormal work of one system, the online monitoring device can re-power on the system to recover the normal work of the system; if the master system works abnormally and can not be recovered, the online monitoring device can switch to the spare system from the master system. By virtue of the observation platform control system, the state information of an observation platform is regularly transmitted to a shore-based monitoring system, so that persons on shore can perform remote control and management, and timely deal with problems once the problems are found.
Owner:STATE OCEAN TECH CENT

Unmanned automatic gas extraction system

The invention discloses an unmanned automatic gas extraction system. A multi-pipeline acquisition module mounting area is divided into a plurality of groups, and each group comprises a plurality of gas extraction pipelines which are adjacently arranged; an extraction pipe of each gas extraction pipeline extends into a gas extraction drill hole of a coal bed; each gas extraction pipeline in each group is connected in parallel to a corresponding multi-way connecting disc; the multi-way connecting discs in each group are connected to an extraction negative pressure main pipe through the extraction negative pressure branch pipes arranged in parallel. Through the design of the multi-pipeline collection module, distributed collection can be carried out on the interior of a mining area, independent grouping control can be carried out, the extraction efficiency is improved, and energy is reduced; due to the design of a gas filtering module, impurities in extracted gas can be filtered and removed, and the purity degree of the gas content is guaranteed; a gas leakage monitoring module and an alarm module are used in cooperation, monitoring can be conducted in the gas collection process, serious safety accidents caused by the fact that leakage is not known by people are avoided, and the safety in the working process is improved.
Owner:WEISHAN JINYUAN COAL MINE

Method for monitoring overlay network performance based on probe prediction

The invention discloses a method for monitoring overlay network performance based on probe prediction, and relates to the field of network communication. The method comprises the following steps: A. determining a probe set; B. randomly selecting part of probes from the probe set, and sending the probes corresponding to a maximal linearly independent group; C. calculating the packet loss rate of the unsent probes in the part of probes, and representing the congestion situation of all the probes by use of a truth-value matrix; D. predicting the current truth-value matrix to obtain a current prediction matrix and a current reference matrix; E. judging whether the previous reference matrix exists or not; if the previous reference matrix exists, comparing the current reference matrix with the previous reference matrix to judge whether the number of changed elements exceeds a first threshold or not; if yes, executing a step F, otherwise, outputting a suspected congestion link set; and if the previous reference matrix does not exist, executing the step F; and F. selecting and sending the probes with high uncertainty, updating the current truth-value matrix, and executing the step D. By adopting the method, network load resulting from network monitoring can be reduced.
Owner:BEIJING UNIV OF POSTS & TELECOMM

Finger vein and fingerprint hybrid identity authentication device and method

The invention discloses a finger vein and fingerprint hybrid identity authentication device and method. In a same structure, two independent groups of infrared spot lights are utilized to extract vein information and fingerprint information of a finger respectively, the structure is simple, and the operation is convenient; the complementation of the two types of biological identification modes of finger vein and fingerprint is realized, so that the authentication accuracy is higher, and scope of application is wider; due to the arrangement of an isolation board and two rows of infrared spot light groups, light irradiated to a verifying finger can be adequate and irradiated accurately; moreover, image interference to vein information and fingerprint images is reduced, so that the acquisition accuracy and success rate are improved, and a guarantee is provided for follow-up certification; comparison authentication is carried out in an intelligent terminal, so that equipment does not need to store feature information or perform comparison authentication, the function is simpler, and the component is smaller; and due to the adoption of low-energy design, the finger vein and fingerprint hybrid identity authentication device is connected with other intelligent equipment via a USB for information exchange, and is powered by the USB directly, so that no external power supply is needed.
Owner:北京神州安盾科技有限公司
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