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11 results about "Payload" patented technology

Payload is the carrying capacity of an aircraft or launch vehicle, usually measured in terms of weight. Depending on the nature of the flight or mission, the payload of a vehicle may include cargo, passengers, flight crew, munitions, scientific instruments or experiments, or other equipment. Extra fuel, when optionally carried, is also considered part of the payload. In a commercial context (i.e., an airline or air freight carrier), payload may refer only to revenue-generating cargo or paying passengers.

Efficient pneumatic duct body

ActiveCN106628120AReduce weightIncrease payloadPropellersWeight reductionMomentumForward flight
The invention relates to an efficient pneumatic duct body. On the premise of guaranteeing the duct lip shape unchanged, the inner wall of the duct is slotted; on the one hand, the weight of the duct body is reduced while effective load is increased; and on the other hand, the fan radius in the duct is increased so as to boost the lift force generated by the fan, and meanwhile, the flowing-around environment of the tip is effectively inhibited, the tip loss of the fan is reduced, and the fan efficiency is improved. With a switch, an opening operation can be performed at the duct body, and the duct lift force system reduces the momentum drag and parasite drag so as to adapt to the efficient pneumatic state of an aircraft during vertical flight and forward flight.
Owner:HUNAN INTELLIGENT THINGS TECH CO LTD

Method for realizing light-weight high-accuracy composite material frame

ActiveCN102145752AReduce structural weightSmall thermal deformationCosmonautic vehiclesCosmonautic partsJoint spacerMaterials science
The invention relates to composite material frames for spacecrafts such as satellites and the like. The problem to be solved is to provide a method for realizing a light-weight high-accuracy composite material frame, and the high-accuracy requirement on the installation of effective loads is met through processes. The device is characterized by mainly comprising rectangle cross section rod pieces[1], joints [2], joint spacers [3], joint bushing blocks [4] and rod built-in pieces [5] which are made of composite materials, wherein a frame main body consists of a certain number of rectangle cross section rod pieces [1] and joints [2] in the integral structure; the rod built-in pieces [5] are hinged in the rectangle cross section rod pieces [1]; the joint spacers [3] are hinged on the outer surfaces of the joints [2]; and the joint bushing blocks [4] are hinged inside the joints [2]. By the method, the problems of installation and supporting between the effective loads and bodies of the spacecrafts such as the satellites and the like are solved, the installation accuracy of the effective loads is effectively ensured, and the local rigidity requirement on the installation of the effective loads is met simultaneously; and the method has good effects of ensuring the machining stability of the integral structure and improving the applicability and the reliability of the structure.
Owner:SHANGHAI SATELLITE ENG INST

CRC methods based on Iub FP frame extension field in TD-SCDMA system

InactiveCN109450597AAdd dynamic selectionNetwork traffic/resource managementTransmission format adaptationTD-SCDMARadio Network Controller
The invention relates to CRC methods based on an Iub FP frame extension field in a TD-SCDMA system and belongs to the technical field of wireless communication. A method is applied to an RNC (Radio Network Controller). The method comprises the following steps that S1, the RNC detects a block error rate of downlink data at an Iub interface; S2, the RNC judges whether to start or close CRC of an Iubinterface downlink FP frame according to the block error rate; and S3, the RNC establishes the downlink FP frame according to a judgment result of the S2 and sends the downlink FP frame to a Node B,and the Node B judges whether to carry out CRC analysis or not according to an extension field of the received downlink FP frame. The method applied to the Node B comprises the following steps that S1, the Node B receives the Iub interface downlink FP frame sent by the RNC; and S2, the Node B judges whether to carry out the CRC analysis or not according to the extension field of the Iub interfacedownlink FP frame. According to the methods, the problem that Iub interface transmission bandwidth and processing capacity for CRC16 computing are wasted due to the fact that payload CRC16 must be carried in the Iub interface downlink FP frame and dynamic configuration cannot be carried out is solved.
Owner:36TH RES INST OF CETC
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