Intellectual surveillance system and monitoring method thereof

An intellectual surveillance system, comprising:

• at least one monitoring module, being able to monitor and react a sudden situation, and integrating the sudden situation into a second composite video signal so as to output the second composite video signal through at least one Bayonet Nut Connector (BNC) connector and at least one coaxial cable, the monitoring module comprising:
• a surveillance camera, executing monitoring and outputting a first composite video signal with a vertical blanking interval (VBI) and a video interval, wherein the surveillance camera having a state register, which saves a first situation message and a normal situation outputted from the surveillance camera, and then the state register saves the first situation message and the normal situation as the first situation message;
• a periphery sensing device, being coupled to the surveillance camera and detecting the sudden situation of the surveillance camera so as to output a second situation message, the periphery sensing device also detecting the normal situation of the surveillance camera and outputting the second situation message;
• a first microprocessor, be coupled to the surveillance camera and the periphery sensing device, the first microprocessor receiving the first situation message and the second situation message and encoding the communication protocol of the first situation message and the second situation message;
• a synchronizing signal separator, being coupled to the surveillance camera to receive the first composite video signal and separating the first composite video signal into a horizontal synchronized signal, a vertical synchronized signal and an odd-even video field signal;
• a message register, being coupled to the first microprocessor and receiving the first situation message and the second situation message dealt with the communication protocol;
• and
• a data mixer, being coupled to the synchronizing signal separator, the surveillance camera, and the message register, the data mixer being adapted to receive the horizontal synchronized signal, the vertical synchronized signal, the odd-even video field signal, the first situation message, and the second situation message, so that the data mixer integrates and outputs the horizontal synchronized signal, the vertical synchronized signal, the odd-even video field signal, the first situation message, and the second situation message into the second composite video signal, wherein the first situation message and the second situation message are integrated into the vertical blanking interval (VBI) of the first composite video signal;
• and
• a terminal computer module, being electrically connected to the camera module through the BNC connector and the coaxial cable in order to receive and process the second composite video signal, the terminal computer module comprising:
• a data separator, being electrically connected to the data mixer to receive and separate the second composite video signal into the first situation message, the second situation message and the first composite video signal and outputting the first situation message, the second situation message and the first composite video signal;
• a video decoder, being coupled to the data separator for receiving and processing the first composite video signal so as to output a digital video signal;
• a second microprocessor, being coupled to the data separator to receive the first situation message and the second situation message, outputting the first situation message and the second situation message after decoding the communication protocol of the first situation message and the second situation message, simultaneously an alert signal being outputted as well, moreover, the second microprocessor being able to output a normal signal without the sudden situation;
• a warning device, being coupled to the second microprocessor for receiving the alert signal and sending out an alert to warn;
• and
• a core processor, being coupled to the video decoder and the second microprocessor in order to receive the digital video signal, the normal signal and the alert signal, the core processor being adapted to process and output the digital video signal, the normal signal and the alert signal to an external display for showing video image, normal messages and alert messages;
• wherein the data mixer further comprises:
• a data reading gate, being electrically connected to the message register for receiving the first situation message and the second situation message;
• a reading trigger, being electrically connected to the synchronizing signal separator and being coupled to the data reading gate, the reading trigger being adapted to receive the horizontal synchronized signal and the vertical synchronized signal and trigger the data reading gate to output the first situation message and the second situation message according to the period of the horizontal synchronized signal and the vertical synchronized signal;
• a vertical synchronization generator, being electrically connected to the synchronizing signal separator to receive the horizontal synchronized signal and the vertical synchronized signal, so that the period of the vertical blanking interval is determined, and then the vertical synchronization generator is able to output an output control signal;
• an adder, being coupled to the data reading gate and the vertical synchronization generator for receiving the first situation message and the second situation message, wherein the adder obtains the period of the vertical blanking interval (VBI) from the vertical synchronization generator and couples the first situation message and the second situation message into a synchronization signal of the VBI;
• and
• an output selecting gate, being coupled to the adder and the vertical synchronization generator to receive the horizontal synchronized signal and the vertical synchronized signal carrying the first situation message and the second situation message, the output selecting gate further receiving the odd-even video field signal and the output control signal simultaneously, so that the output selecting gate outputs the first situation message and the second situation message within the vertical blanking interval according to the output control signal.