Abstract: A method for measuring humidity at long range using simplified equipment includes creating a formula according to a relationship between multiple sets of known optical flow feature vectors and a known humidity. First and second images are obtained, wherein the first image and the second image are captured as being in the same range of capture. A plurality of feature points in the first image is obtained and an optical flow feature vector for each of the feature points according to apparent changes in position of each feature point according to the second image are calculated. The degree of current humidity according to the optical flow feature vectors and the formula is thus obtained.

Abstract: A method for controlling and managing handovers between base stations in adjoining cells in wireless communications enables a user equipment (UE) to report a bit error rate (BER) to a base station having current conduct of communication with the UE. If the BER is greater than a predetermined value, the base station having conduct further determines whether the UE satisfies a handover condition over a period of time and hands conduct over to another base station if the UE satisfies the handover condition for the period of time and if the other base station is not already operating at capacity. An apparatus for controlling and managing handovers is also disclosed.

Abstract: A mounting device for quick and easy mounting of an electronic device includes a mounting rack, a locking mechanism, and a support rack. The locking mechanism includes a movable locking rack, a shaft connected to the locking rack, and a locking ring on the shaft. The support rack includes an engaging element and groove, and when the support rack is moved toward the mounting rack during mounting, the free end of the engaging element passes through the lower side of the locking rack, and pushes against the locking ring. When mounted on the mounting rack, the bottom of the locking ring is in the engaging groove. When the support rack is raised up, the engaging element raises the locking rack to the magnetic part, and the locking rack is magnetically held to the magnetic part.

Abstract: An indoor positioning method detects a moving object defines a possible location area of the moving objects according to errors calculated by received signal strength indication (RSSI) values of the moving object, and calculates RSSI moving vectors between the moving object and wireless devices according to the RSSI values to predict an exact position of the moving object according to the dependency of the RSSI moving vectors and relative angular positions of the moving object. The high relevance feature between the Co-Channel Interference (CCI) of multi-nodes and the Carrier to Interference-plus-Noise Ratio (CINR) is transformed as vectors and the vectors are compared with the RSSI moving vectors to calculate a Root Mean Square Error (RMSE) value. When the RMSE value is less than a preset threshold value, an exact position of the moving object can be obtained.

Abstract: A footsteps tracking method, including the steps of: receiving a first sound signal of a user's first footstep; calculating a first position of the first footstep according to relative position relationship of at least three microphones in the microphone array and time differences of sound arrival of the first sound signal received by the three microphones respectively; receiving a second sound signal of a second footstep of the user, wherein an audio frequency of the second sound signal is the same as an audio frequency of the first sound signal; and calculating a second position of the second footstep according to the first position, a time difference between receiving the first sound signal and the second sound signal, receiving angles between the first sound signal and a pair of the three microphones, and receiving angles between the second sound signal and the pair of the three microphones.

Abstract: A method for adjusting sound playback of a portable device for constancy notwithstanding different environments outputs from the portable device detectable audio signals inaudible to user and the device receives reflected audio before the portable device is actually commanded to play an audio file. A list of volume weightings for reflected audio is calculated. Before commencing playback of the audio file, the portable device obtains reference volume weightings from a list according to the current volume setting, and calculates adjustment coefficients for different frequency bands based on weightings of the reference volume list and of the reflected audio list. The audio signals of the audio file are output after adjustment. A portable device is also disclosed.

Abstract: A method of controlling a battery-powered remote controller to decrease a duty cycle to allow continued operations despite the quantity of the battery is bad determines a drop in voltage of the battery in standby mode as voltage of the battery is being read. When receiving a command to activate a voice function, determining whether the drop in voltage in standby mode is greater than or equal to a preset value. If yes, the method then determines whether the drop in voltage falls in a preset range. If yes, the method regulates a duty cycle of the pulse signal activating the voice function, and activates the voice function as required. A remote controller and a non-transitory storage medium are also provided.

Abstract: An air shutter comprises a holder, two compressible elastic members, a plurality of blades, and two cover plates. The holder comprises a central hub, an outer frame and a plurality of connecting pieces, and the outer frame has two annular grooves for receiving the two compressible elastic members. Each of the plurality of blades locates between two adjacent connecting pieces and one end is pivotally connected to the central hub and the other end is pivotally connected to the two compressible elastic members. In a windless state, a gap between two adjacent connecting pieces is closed by one of the blades, and when the windless state changes to a windy state, each blade is rotated by a wind force and area of the gap expands with the increase of the wind force. A radiating fan comprising the air shutter is also provided.

Abstract: A method for managing network slices for the benefit of users monitors and obtains key performance indicators configured by a user, the indicator values being collected in real time and visually presented. When a user wants to optimize the network slices, weightings, value intervals, and variables are applied by the user to target key performance indicators. The network slices are optimized by a particle swarm algorithm configured by the user. A device and a computer readable and permanent storage medium for executing the network slices management method are also disclosed.