Patents
Literature
2 results about "Collision problem" patented technology
Efficacy Topic
Property
Owner
Technical Advancement
Application Domain
Technology Topic
Technology Field Word
Patent Country/Region
Patent Type
Patent Status
Application Year
Inventor
The r-to-1 collision problem is an important theoretical problem in complexity theory, quantum computing, and computational mathematics. The collision problem most often refers to the 2-to-1 version: given n even and a function f: {1,…,n}→{1,…,n}, we are promised that f is either 1-to-1 or 2-to-1. We are only allowed to make queries about the value of f(i) for any i∈{1,…,n}. The problem then asks how many such queries we need to make to determine with certainty whether f is 1-to-1 or 2-to-1.
Discovery of devices
Embodiments of the present disclosure relate to discovery of devices. In one aspect, a first device receives a first message from a second device, and the first message requests the first device to discover at least one third device. Then, the first device sends a second message to the second device in response to the first message. In this way, the first device can help the second device to discover the at least one third device. Therefore, interference and collision problems can be mitigated, and positioning overhead and power consumption can be reduced.
Owner:ALCATEL LUCENT SHANGHAI BELL CO LTD +1
Anti-collision detection method for construction of substation equipment crane
The application discloses a kind of substation equipment crane construction anti-collision detection methods, belong to electric power equipment construction field.The present application is used in the process of substation crane construction, detect the position relationship of sling / sling hook and boom and substation equipment, prevent the collision of sling / sling hook and boom in the process of substation crane construction in rotation to substation equipment.The present application establishes the mathematical model of the space straight line, rotating plane and projection plane of crane boom, sling and sling hook by multi-point high-precision positioning technology, and the numerical comparison of the coordinates and height of substation equipment is carried out, and finally the platform visualization is displayed, solve the collision problem in the moving process of boom, sling, sling hook in substation construction site, improve the safety of substation crane construction.
Owner:SHANDONG SENTER ELECTRONICS