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116 results about "Limited service" patented technology

Definition of limited service 1 : a military classification for equipment not considered suitable for use in combat areas 2 : a military classification for personnel considered not acceptable for combat service

Modular hydraulic-drive four-leg robot with variable leg shape structures

The invention discloses a hydraulic-drive four-leg robot. The modular hydraulic-drive four-leg robot has the advantages that the hydraulic-drive four-leg robot is good in dynamic balance and high in topographical adaptability, loading capacity and cost performance, and is in a modular and bionic structural design, four leg shapes can be switched over by means of quickly assembling and disassembling subassemblies, the modular hydraulic-drive four-leg robot is multipurpose, and merits and shortcomings of various leg shapes are verified by experiments at a physical prototype stage; each single leg is provided with two leg sections, has three degrees of freedom and comprises a hip joint and thigh assembly, a knee joint and shank assembly and a side sway assembly; a side sway and connecting block combining form is adopted for each thigh portion according to a bionic principle, so that sufficient rigidity and strength are guaranteed, the hydraulic-drive four-leg robot can bear a load stably while the weight of the robot is reduced to the greatest extent, and sufficient activity space for hydraulic cylinders is guaranteed; shank portions comprise foot-end rubber pads and passive retractable bidirectional spring shock absorption mechanisms, and instant impact force generated when the robot is in contact with the ground can be effectively buffered and absorbed under multiple shock absorption actions; problems of limited service lives of components and vulnerability of electronic elements such as foot-end force sensors due to the fact that impact force disappears and springs are rebounded quickly when an existing robot leaves the ground can be solved by the aid of the bidirectional spring mechanisms.
Owner:BEIJING INSTITUTE OF TECHNOLOGYGY

High-energy-efficiency mixed relay transmission method based on time delay limited service

The invention provides a high-energy-efficiency mixed relay transmission method based on a time delay limited service, and is applied to a wireless relay cooperative system. Two information source nodes exchange information through an amplification transferring relay node; information of the node with a relatively large amount of information to be transmitted is classified into two parts according to a bit number; one part of information amount is equal to or smaller than the information amount of the node with a relatively small amount of information to be transmitted; the two information source nodes respectively transmit an equal amount of information by adopting a bidirectional relay transmission mode; the second part of residual information of the node with the relatively large amount of information to be transmitted is transmitted through a unidirectional relay transmission mode; and during transmission, optimal transmission time lengths of the unidirectional relay transmission state and the bidirectional relay transmission stage are determined by a typical convex optimization method. According to the method, the advantage that the bidirectional relay is high in energy efficiency in the scene of equal bidirectional data amount and the advantage that the unidirectional relay is high in energy efficiency in the scene of unequal bidirectional data amount are used, so that the energy efficiency of a wireless system can be improved greatly.
Owner:BEIHANG UNIV

Switching device for realizing parallel running of two operating modes of self-service terminal

The invention discloses a switching device for realizing the parallel running of two operating modes of a self-service terminal. The switching device comprises a service module, a hardware module and a hardware driving module, wherein the service module comprises a plurality of service units which are independent from one another; the hardware module comprises a plurality of pieces of hardware equipment of the self-service terminal; the hardware driving module comprises a plurality of hardware equipment dynamic libraries which are in one-to-one correspondence connection with the hardware equipment; each hardware equipment dynamic library realizes an interface function of corresponding hardware equipment; each service unit calls at least one hardware equipment dynamic library; when any piece of hardware equipment of the self-service terminal is required to be maintained, the self-service terminal is switched from a full-function service mode into a hybrid parallel running mode of a limited service mode and a maintenance mode; and after the maintenance of the hardware equipment is finished, the self-service terminal is switched from the hybrid parallel running mode of the limited service mode and the maintenance mode into the full-function service mode.
Owner:GRG BAKING EQUIP CO LTD
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