Abstract:
A method of detecting a flickering frequency of an ambient light source includes the following steps. First, a light intensity of the light source is sensed in a predetermined time period according to a sampling frequency to obtain a plurality of sample values. Then, the sample values are calculated to obtain a median value. Next, the sample values are binarized according to a result of a comparison between the sample values and the median value to obtain a first sequence. The first sequence is differentiated to obtain a second sequence, and the second sequence includes numbers −1, 0, and 1. Then, a distance between the same numbers in the second sequence is calculated, and the sampling frequency is divided by the distance to obtain the flickering frequency of the ambient light source. A system of detecting a flickering frequency of an ambient light source is also disclosed herein.
Abstract:
A light control system includes a wired control device, a wireless control device, a communication module, and light devices. The wired control device includes a first user interface and a first wired communication protocol interface. The wireless control device includes a second user interface and a first wireless communication protocol interface. The communication module includes a second wired communication protocol interface and a second wireless communication protocol interface. Each of the light devices includes a third wired communication protocol interface, and each of the light devices performs data exchange with the third wired communication protocol interface of another one of the light devices by a network cable connected to the third wired communication protocol interface. The first wired communication protocol interface and the first wireless communication protocol interface perform data exchange respectively with the second wired communication protocol interface and the second wireless communication protocol interface.
Abstract:
A wireless control system and a wireless network expansion method applied thereto are provided. The wireless control system comprises a mobile platform and a plurality of wireless devices capable of switching between a first role and a second role. The wireless network expansion method comprises following steps. A mobile platform is turned on. The mobile platforms scans the wireless devices and links to any wireless device serving the first role and then sends a control command to corresponding wireless device, which accordingly broadcasts the control command. The control command is received by at least one wireless device serving the second role. The wireless devices cyclically switch between the first role and the second role to continuously broadcast the control command to other wireless devices serving the second role, so that all of the wireless devices can finally receive the control command from the mobile platform.