METHOD AND DEVICE FOR CONTROL OF ACTIVATION OF SLAVE LIN NETWORKS BY ANALYSIS OF THE REASONS OF ACTIVATION

摘要

1. A method for controlling the activation of slave units (OEi) of a LIN (R) multiplex communication network controlled by a driver unit (OM), characterized in that when said driver unit (OM) detects activity in said network ( R) during the waiting phase, i) at least some of the slave units (OEi) send special request messages to which they must respond accordingly using a response message containing a status field whose value characterizes a local or non-local source of update loaded activity, then ii) analyze the value of the status field of each of the response messages received by said master unit (OM) to determine whether at least one slave unit (OEi) is a source of said activity, and if confirmed, whether this activity is relative to said corresponding value of the state field, and iii) allow the activation of said slave units (OEi) only if said activity is justified. 2. The method according to claim 1, characterized in that, in step i), special request messages are sent to all subordinate blocks from which said detected activity can proceed. The method according to claim 1, characterized in that each response message contains a state field whose value characterizes a local or non-local source of activity, and in the case of a local source, the type of event that locally caused the mentioned activity. The method according to claim 2, characterized in that each response message contains a status field whose value characterizes a local or non-local source of activity, and in the case of lok