Development of a method for the determination and registration of unauthorized data transmission channels at industrial manufactories

The problem of industrial espionage is very common in the modern world. Existing complex systems are difficult to configure and turnkey solutions are created from integrator firms. In many enterprises, both industrial and civilian, wireless is a less secure area. The proposed solution, which is used as an addition to existing security systems, is able to detect not only created networks with the usual parameters, but also detect hidden data networks and signal unregistered wireless data networks to send information to a special server. The paper presents the architecture of the hardware-software complex, presents the first prototype and conducts test tests.

Analysis Of Packets Delay In Wireless Data Networks

The networks with wireless links for automation control applications traffic transmission when packets have small size and application payload is predictable are under consideration. Analytical model for packets delay on their propagation path through the network is proposed. Estimations for network architectures based on WiFi and Bluetooth wireless technologies are made. The specifications for physical layer 802.11 a/b/g/n and 802.15.1 are under consideration. Analytical and experimental results for delivered network bandwidth for different network architecture, traffic structure and wireless technologies were compared to validate that basic mechanisms are correctly taken into account in the model. It is shown that basic effects are taken into account and further accuracy “improvement” of the model will give not more than 5%. As a result that is important for automation control applications we have reliably received the lowest possible level for packets delay in one wireless link. For 802.11 it is of order of 0.2 ms, for 802.15.1 it is 1.25 ms and is true when application packet can be transferred by one data frame.