Patent ID: 8502658

Claim:
A security system implemented with a communication device used for remote monitoring the status of a monitoring location, the security system comprising: a remote communication device, which is a mobile phone; a local communication device, which is a mobile phone installed in the monitoring location, and connected with the remote communication device via a communication connection; an internal image retrieve device installed in the local communication device; a main controller installed in the monitoring location, and connected with the local communication device; and at least one main sensor installed in the monitoring location, and electrically coupled to the main controller; wherein, when each main sensor is triggered, each main sensor respectively sends an output signal to the main controller, the main controller collects and processes the output signals and transmits the processed output signals to the local communication device, whereby the local communication device transforms the output signals into a text warning message and transmits the text warning message to the remote communication device via short messaging service (SMS); wherein, when one of each main sensor is triggered the internal image retrieve device is started to retrieve films of the monitoring location to generate a retrieved picture, the local communication device transforms the retrieved picture and the output signals into a picture warning message and transmits the picture warning message to the remote communication device via multimedia messaging service (MMS), and wherein the remote communication device and the local communication device has video phone call dialing out function, the remote communication device edits an instruction message and transmits the instruction message to the local communication device via SMS, the local communication device analyzes the instruction message to extract a control instruction, starts the internal image retrieve device according to the control instruction, and dials out a video phone call to the remote communication device, whereby films of the monitoring location recorded by the internal image retrieve device are transmitted to the remote communication device following the video phone call is connected.