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This paper proposes the design and development of a telescope network scheduler for the GLORIA telescope network. This telescope network, which main objective is helping users to get involved in astronomy research, is composed by 18 heterogeneous telescopes located in different countries. These telescopes are managed by the scheduler to execute the observations requested by the users. A key module of this scheduler is the telescope decision algorithm which objective is to avoid serving an observation to a telescope that cannot execute it. This paper proposes two different algorithms: the first one is based on weather forecast, and the other one is based on fuzzy logic. Both algorithms were deployed and used into the GLORIA network, an analysis of the results and a performance comparative between both algorithm are shown in this paper. As well, the scheduler architecture based on a hybrid distributed-centralised schema is detailed.