Abstract: A place management method and a place management system are provided. The place management method includes the following steps: generating a first identification code according to an entering request, and transmitting the first identification code to a client; determining whether the first identification code from the client is read by an identification module; generating an entering authorization message corresponding to an object and recording a corresponding first time when the first identification code is read by the identification module; receiving a leaving message, and generating a second identification code according to the first time and a second time corresponding to the leaving message, and sending the second identification code to the client; and generating a leaving authorization message corresponding to the object when the second identification code is read by the identification module.

Abstract: A method for swiftly searching for target objects is applied on a handheld device. The method comprises a control interface for inputting at least one characteristic of the target object. The handheld device is configured to capture an pictured image of an environment to facilitate the search. The control interface is also provided with the pictured image, whence at least one compared image is obtained and compared with the characteristic. The compared image is labeled with a mark when it matches with the characteristic. A user using the handheld device can find the target object in the environment according to the mark. The method enhances search efficiency and reduces the missing rate of the artificial search for the target object.

Abstract: A keyboard device with switchable connection path includes a keyboard, a device controller, a first switch, a second switch and a wireless communication module. The device controller is electrically connected to the keyboard. A wireless communication module is electrically connected to the device controller. The first switch is electrically connected to a system controller and the device controller. The second switch is electrically connected to the keyboard and the wireless communication module. The method of switching connection paths of the keyboard includes: connecting a system controller to a keyboard and a wireless communication module; disconnecting the system controller from the keyboard and the wireless communication module; and connecting the keyboard to the wireless communication module. This disclosure allows one keyboard to be shared between a system device and an external mobile device.