An Architecture of Cross-Domain Support System for Multiple Space Command and Control Platforms

In China, different space launch modes are developing rapidly. Because the command and control systems (C2S) of space launch missions are constructed at different times and belonged to the resources of the different administration departments, this situation leads to the different space C2S architectures on hardware and software. Interoperability and coordination problems arise between multi-mode mobile launch C2Ss (including multi-site joint launch, land mobile launch, and sea launch) and fixed launch C2Ss of launch sites. In the case of high-frequently launching in recent years, it is difficult to transform the different C2Ss into a unified space C2S platform due to practical problems such as cost increasing, reliability changing, and development time-efficient caused by the altered technical states of different C2S platforms. As a result, there exists the heterogeneity between the test and launch equipment of conventional launch sites and mobile command terminals. Different C2Ss cannot be integrated and interoperable. And the high real-time protocol conversion of communication and data is difficultly realized. This paper presents the interoperability of the multi-mode launch command platform and the features that need to be supported. Five interoperability levels of cross-domain C2S platforms are defined. The architecture of the cross-domain support system (CDSS) is proposed for multiple C2S platforms in the space launch mission. The interoperability is divided into five levels of cross-domain interaction processing, applications and data sharing, public services, infrastructure, access gateways. Corresponding infrastructure and basic software are designed to provide the CDSS operation platform for interoperability level 1 and 2. The core integrated access gateway of the CDSS is designed for solving the real-time problems on the multi-communication system, multi-protocol transformation, multiprotocol customization, and multi-data structure decoupling and assembly. Constructed application databases and public services are provided by CDSS for interoperability level 3. Application and data processing components are developed in CDSS for different command user customization on interoperability level 4. The integrated portal is the interoperated interface of application and management on interoperability level 5. CDSS also provides development tools for component development. CDSS integrates all the different command business and applications into the support platform. Without changing the architecture of original C2S platforms on hardware and software, CDSS can implement integrated applications such as data fusion, resource sharing, intelligent interoperability, etc. between different C2Ss. CDSS is an important infrastructure and common platform for launch sites and mobile launch applications. CDSS is responsible for the downward on shielding the heterogeneity of the underlying sensing hardware devices, network platform, and service platform. It realizes unified access and centralized control of the equipment involving command and control. CDSS upward supports the development of multi-mode command application, runtime sharing, open connectivity, and interoperability. It ensures the reliable deployment and management of command business applications. The work also facilitates the application expansion of command and control. In practice, a case is introduced that the hybrid architecture of multi-mode launch C2S is established by CDSS. Good results have been achieved on the C2Ss of fixed launching, multi-site joint launching, land mobile launching, and sea launching.