Abstract: An alarm system and method for warning of emergencies are provided. The method predefines a sign language list, and stores the sign language list in a storage device of a terminal device connected to at least one video camera. The method can control the video camera to capture sign images of a person when the person warns of an emergency using sign language, and combine the sign images to create a combined image. In addition, the method analyzes each of the sign images of the combined image to generate a group of sign numbers according to the sign language list stored in the storage device, generates a sign event according to the group of sign numbers, and responds to the sign event using a corresponding alarm.

Abstract: A method can control a pan-tilt-zoom (PTZ) camera to monitor an area. The method sets a monitoring path for the PTZ camera, captures a plurality of navigation images of the monitored area at different positions of the monitoring path, and obtains position information of each of the navigation images based upon an image space coordinate system. The method further sets a sequence of the navigation images, and sets a directional control icon for each of the navigation images according to the set sequence and the position information. According to the movement direction pointed by the directional control icon of each of the captured image, the PTZ camera can move along the monitoring path to capture a video stream of the monitored area.

Abstract: An alarm system and method for warning of emergencies are provided. The method predefines a sign language list, and stores the sign language list in a storage device of a terminal device connected to at least one video camera. The method can control the video camera to capture sign images of a person when the person warns of an emergency using sign language, and combine the sign images to create a combined image. In addition, the method analyzes each of the sign images of the combined image to generate a group of sign numbers according to the sign language list stored in the storage device, generates a sign event according to the group of sign numbers, and responds to the sign event using a corresponding alarm.