Break-in detection system

A break-in detection system for detecting intrusion into a surveillance area, the system comprising:

• an intrusion detection unit;
• a monitoring system for monitoring the detected intrusion, the monitoring system comprising industrial television cameras maintained in coordination with said intrusion detection unit;
• and
• an industrial television control system,
• wherein said intrusion detection unit comprises fibro-optic detection sensor means provided with fiber optic cables distributed in the surveillance area to work in coordination for detecting intrusion signals generated by means of external force exerted thereto, and as a transmission channel for said intrusion signals,
• said intrusion detection unit being capable of receiving said intrusion signals from said optical fiber cables, each fiber optic cable having first and second core wires arranged therein in parallel to each other for signal transmission,
• said intrusion detection unit being capable of enabling light pulses to enter said first core wire and be reflected in the form of said intrusion signals, and
• said second core wire being capable of transmitting televised image signals from the industrial television cameras and image control signals to and from the industrial television control system.