Development of onboard device for satellite monitoring of aircraft

The development of “Machine-to-machine” interaction couldn’t but affect aviation sphere worldwide. It is based on the data exchange between machines without participation of a person. It considerably simplifies the process of monitoring of objects. Application of wireless types of communication allows to provide control of remote objects, including the mobile. One of such types of communication is GSM communication. Thanks to rather wide covering, communication of GSM is used for the data transmission of location and sensors of mobile object. However the territory of the Russian Federation has incomplete coverage by GSM communication. For monitoring of aircrafts it is necessary to involve satellite communication in such areas. It is offered to use satellite group of the Iridium company for ensuring access to communication in remote areas of flights of aircrafts. The key feature of Iridium satellites, full coverage of a terrestrial surface, became the communication defining at a choice of a reserve way. The module of data transmission Iridium 9602 conforms to the requirements put by the authors of work to the device. Transfer of a package of data on 340 bytes allows to lower costs of satellite communication. From the point of view of economic indicators, reservation by the communication Iridium of GSM became the optimum decision. First of all, it is connected with the cost of services in providing communication. Thus, at the inaccessible GSM channel the Iridium channel will be involved. Basic elements of the experimental device are: the microcontroller, the satellite Iridium 9602 modem, the GSM module, the GPS/GLONASS MGGS2217 module, a high-frequency reception and the transferring antennas. Placement of the device of monitoring onboard the aircraft will allow to receive these locations and speeds with precisely established interval. The analysis of the market of similar devices showed that the main and only communication channel in such blocks - communication of GSM. The devices equipped with modules of satellite communication transmit data through Inmarsat satellites communication with which is difficult in subpolar areas.