在板與板之間常用到的通信，就是用一般IO口模擬IR去控制另一片板，使用起來非常方便
標簽： 通信
上傳時間： 2014-01-25
上傳用戶：yulg
-- Simple Robot Control Program -------------------------------------------------------------------------- -- Left is left IR sensor - 1=object to left -- Right is rigth IR sensor - 1=object to right -- Lmotor_dir 1=forward 0=reverse -- Rmotor_dir 1=forward 0=reverse -- Lmotor_speed 111=fast 000=slow -- Rmotor_speed 111=fast 000=slow
標簽： Control Program Simple Robot
上傳時間： 2013-11-27
上傳用戶：風之驕子
無線中新出來的一個NFC，就是near field communication，剛起步的技術，是好東西，這包含了它的協議和測試方法
上傳時間： 2016-11-26
上傳用戶：星仔
We describe and demonstrate an algorithm that takes as input an unorganized set of points fx1 xng IR3 on or near an unknown manifold M, and produces as output a simplicial surface that approximates M. Neither the topology, the presence of boundaries, nor the geometry of M are assumed to be known in advance — all are inferred automatically from the data. This problem naturally arises in a variety of practical situations such as range scanning an object from multiple view points, recovery of biological shapes from two-dimensional slices, and interactive surface sketching.
標簽： demonstrate unorganized algorithm describe
上傳時間： 2013-12-18
上傳用戶：xc216
A passive optical network (PON) is a point-to-multipoint, fiber to the premises network architecture in which unpowered optical splitters are used to enable a single optical fiber to serve multiple premises, typically 32-128. A PON consists of an Optical Line Termination (OLT) at the service provider s central office and a number of Optical Network Units (ONUs) near end users. A PON configuration reduces the amount of fiber and central office equipment required compared with point to point architectures
標簽： network point-to-multipoint architecture premises
上傳時間： 2016-12-10
上傳用戶：王慶才
51單片機紅外線解碼程序，對紅外線（IR)編碼進行解碼的C語言程序。
上傳時間： 2013-12-17
上傳用戶：CHINA526
在手持式設備上利用紅外接口外接鍵盤進行輸入的驅動程序，僅支持windows mobile 5.0平臺IR-503，其他平臺未測試
上傳時間： 2013-12-25
上傳用戶：sssl
A cylindrical wave expansion method is developed to obtain the scattering field for an ideal two-dimensional cylindrical invisibility cloak. A near-ideal model of the invisibility cloak is set up to solve the boundary problem at the inner boundary of the cloak shell. We confirm that a cloak with the ideal material parameters is a perfect invisibility cloak by systematically studying the change of the scattering coefficients from the near-ideal case to the ideal one. However, due to the slow convergence of the zeroth order scattering coefficients, a tiny perturbation on the cloak would induce a noticeable field scattering and penetration.
標簽： cylindrical scattering expansion developed
上傳時間： 2017-03-30
上傳用戶：lhc9102
We analyze, both analytically and numerically, the effectiveness of cloaking an infinite cylinder from observations by electromagnetic waves in three dimensions. We show that, as truncated approximations of the ideal permittivity and permeability tensors tend towards the singular ideal cloaking fields, so that the anisotropy ratio tends to infinity, the D and B fields blow up near the cloaking surface. Since the metamaterials used to implement cloaking are based on effective medium theory, the resulting large variation in D and B will pose a challenge to the suitability of the field averaged characterization of " and 碌. We also consider cloaking with and without the SHS (softand- hard surface) lining, shown in [6] to be theoretically necessary for cloaking in the cylindrical geometry. We demonstrate numerically that cloaking is significantly improved by the SHS lining, with both the far field of the scattered wave significantly reduced and the blow up of D and B prevented.
標簽： effectiveness analytically numerically cloaking
上傳時間： 2017-03-30
上傳用戶：zxc23456789
We obtained the energy transport velocity distribution for a three dimensional ideal cloak explicitly. Near the operation frequency, the energy transport velocity has rather peculiar distribution. The velocity along a line joining the origin of the cloak is a constant, while the velocity approaches zero at the inner boundary of the cloak. A ray pointing right into the origin of the cloak will experience abrupt changes of velocities when it impinges on the inner surface of the cloak. This peculiar distribution causes long time delays for beams passing through the ideal cloak within a geometric optics description.
標簽： distribution dimensional transport obtained
上傳時間： 2013-12-19
上傳用戶：zhliu007
