Industrial Technology Research Institute

Yueh-Feng Lee

Yu-Chee Tseng

Chun-Hsien Wu

Chun-Hao Peng

Sheng-Po Kuo

Yu-Hsuan Lin

Meng-Shiuan Pan

Yuan-Chu Tai

Chung-Chou Shen

Lun-Wu Yeh

Ting-Chou Chien

Ching-Ying Lai

Yang-Jung Lee

Bing-Jhen Wu

Yen-Ann Chen

Che-Yen Lu

Yu-Wei Su

Hsin-Sheng Liu

A positioning method and a positioning system based on light intensity are provided. The positioning system comprises a lighting system, a sense feedback device and a positioning module. The lighting system comprises at least three point light sources and sequentially adjusts luminance of these point light sources to light up a target. The sense feedback device is disposed on the target and used to collect light intensity information of the light projected on the target by the lighting system. The positioning module calculates a distance between the target and each of the point light sources based on the light intensity information and calculates a positioning location of the target based on the locations of the point light sources and the distances between the target and the point light sources.

Positioning method and positioning system based on light intensity

An electronic shelf label controlling system, an electronic shelf label installing method and an electronic shelf label updating method are provided. The electronic shelf label controlling system of the electronic shelf label includes at least an electronic shelf label, a controlling device, a deploying device, and a communication gateway device. The electronic shelf label is disposed on a shelf. The controlling device stores a label location table. The label location table records a relationship between a label identifying information and a label location information of the electronic shelf label. The deploying device is used for obtaining the label identifying information. The communication gateway device is used for communicating the controlling device, the deploying device and the electronic shelf label.

Electronic shelf label controlling system, electronic shelf label installing method and electronic shelf label updating method

An exemplary embodiment of a system for updating electronic shelf labels (ESLs) comprises multiple ESLs, and a gateway connected to the multiple ESLs to update data of the multiple ESLs. Each ESL comprises a transceiver having a media condition detector to detect whether other ESL(s) perform an update at the time slot, a controller, a memory, and a random number generator randomly selecting one of multiple time slots of a frame when an ESL update procedure begins, wherein the time slot corresponds to an index stored in the memory by the controller. The ESL performs the update at this time slot when none of said other ESL(s) performs the update at the time slot. When said other ESL(s) performs the update at the time slot, the controller enables the random number generator to randomly select another time slot from a next time frame.

System and method for updating electronic shelf labels and updating apparatus and method of an electronic shelf label

A positioning method includes: first, receiving wireless signals respectively at the positions of a number of training positions so as to extract a number of signal characteristics; next, establishing a positioning database according to the relationship between the training positions and the corresponding positioning module; then, classifying the training positions and the corresponding signal characteristics into a plurality of clusters, wherein when conducting positioning on a positioning node, a characteristic matching is conducted to find out a major cluster most similar to the positioning node; after that, conducting the characteristic matching between the positioning node and the training positions in the major cluster to decide a most-likely position of the positioning node. In addition, the present invention also provides a positioning system using the above-mentioned method.

Method and system for positioning

A method for a new node to join an ad-hoc network is provided. The method includes two basic functions. When the new node is allowed to join the network, the indicating device of the node being joined generates an indication. When the new node joins the network, the indicating device of the new node also generates an indication. The method further includes two commands, the join-rejection command and the joined-rejection command, to cancel the join procedure when the indicating device of the new node and the node being joined do not indicate correspondingly. Accordingly, the method efficiently reduces the possibility of joining an unanticipated node.

Method and system for a node to join a wireless ad-hoc network

An algorithm of collecting and constructing training location data is provided as it is applied to a test space of a plurality of beacons and training locations. The signal patterns of beacons adjacent to each training location are detected. The signal pattern is converted into a signal vector and each signal vector is integrated for calculating a feature vector of each training location. The coordinate and the feature vector of each training location, after being recorded, are introduced into a numerical data fitting model for constructing the signal pattern function of each beacon. For positioning, the current signal patterns of the beacons adjacent to the user location are detected and converted to a discriminant function. Thereafter, the minimum of the discriminant function is computed so as to find the position of the user location.

Algorithm of collecting and constructing training location data in a positioning system and the positioning method therefor

An automatic lighting control system includes at least a lighting device, at least a sensor, and a decision module. Each lighting device is adjustable and has a remote control function. A wireless sensor network is configured by the one or more sensors. Each sensor may sense a corresponding luminance and returns the luminance to the decision module in a wireless manner. The decision module may dynamically adjust one or more lighting devices to a suitable luminance by referring to system information, the returned luminance and user's demands.

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Taipei, Taiwan

Yueh-Feng Lee