Industrial Technology Research Institute

Chung-Chou Shen

Yu-Chee Tseng

Lun-Chia Kuo

Yueh-Feng Lee

Shih-I Huang

Sheng-Po Kuo

Chung-Yi Wu

Tsung-Hsien Chu

Huang-Yi Yu

Po-Nung Chiang

Tai-Yi Huang

Bing-Jhen Wu

Cheng-Wei Li

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

The present invention provides an apparatus and method that increases the utilization by processors on shared resources. It provides the minimum latency in a multiprocessor system during usage right exchange between multi-processors on a shared resource. The apparatus provides a timed mailbox including a timer. The timed mailbox is at least associated with a first processor and a second processor. The second processor starts to utilize a shared resource to perform a task. According to a predetermined clock cycle number, the timed mailbox issues a signal in advance to notify the first processor of the availability of the shared resource to be utilized by the first processor.

System having minimum latency using timed mailbox to issue signal in advance to notify processor of the availability of the shared resources

A sampling rate allocation method for a wireless sensor network is provided. In this method, a distributed computing method is adopted to allow each node to calculate and obtain its decision table and energy table and upload its energy table to its parent node, and finally, the number of samples to be provided by all the child nodes is determined according to the decision table of the root node and a total sample number. Compared to the conventional techniques, the present invention provides a wireless sensor network which has longer life time and can meet the requirements to both the total number of samples and the fairness.

Wireless sensor network and sampling rate allocation method thereof

A system configured for parking management in a parking facility, the system comprising a plurality of parking spaces, and a plurality of sensor units corresponding to the plurality of parking spaces, each of the plurality of sensor units being configured to detect a parking status of a corresponding one of the plurality of parking spaces and transmit a first message including the parking status of the corresponding one parking space in a wireless communication network.

System and apparatus for parking management

Growing community of inventors

Taipei County, Taiwan

Chung-Chou Shen