Abstract: The locking system includes a locking device for installing on a door, which includes a lock member and a bolt member mechanically coupled together. There are a controller, a first Bluetooth module, an electromagnetic valve, and a receiver inside the lock member. The electromagnetic valve mechanically couples the lock member. The controller is electrically connected to the first Bluetooth module, the electromagnetic valve, and the receiver. The locking system further includes a button and an indicator member, both configured on the lock member and electrically connected to the controller. The locking system also includes a mobile device including a second Bluetooth module and a control module. Based on whether the first and second Bluetooth modules are signally linked or not in a proximity or a Keep away condition, the locking system achieves enhanced security and convenience.

Abstract: A locating system includes a locating device having a control and processing module, a transmitting/receiving module electrically connected to the control and processing module and an antenna member for signal transmitting and receiving purposes, an alarm device electrically connected to the control and processing module for generating alarming signals, and a detecting device electrically connected to the control and processing module for detecting a motion of the locating device. The control and processing module includes a processor unit, a false alarm prevention unit coupled to the processor unit for preventing the false alarms from being occurred or generated.

Abstract: Data exchange apparatuses and methods are provided. Two data exchange apparatuses are able to use a plurality of channels. One of the data exchange apparatus plays the active mode, while the other data exchange apparatus plays the passive mode. The active data exchange apparatus selects a first channel and transmits a data exchange request to the passive data exchange apparatus automatically through the first channel. The passive data exchange apparatus transmits an acknowledgment signal to the active data exchange apparatus automatically. Both the active and passive data exchange apparatuses select a second channel according to the acknowledgment signal and then exchange data through the second channel. People who owned a data exchange apparatus of the present invention can easily gather information according to his or her requirement from people who also own a data exchange apparatus.