BS ISO 17356-5:2006
道路车辆.嵌入式机动车装置用开放式界面.OSEK/VDX网络管理(NM)
Road vehicles - Open interface for embedded automotive applications - OSEK/VDX Network Management (NM)
- 标准号
- BS ISO 17356-5:2006
- 发布
- 2006年
- 发布单位
- 英国标准学会
- 当前最新
- BS ISO 17356-5:2006
- 被代替标准
- 04/30058849 DC:2004
- 适用范围
- Embedding of the Network Management (NM) NM defines a set of services for node monitoring. Figure 1 shows how the NM is embedded into a system and that the NM shall be adapted to specific requirements of the bus system used or to the resources of the nodes. NM consists of the following: -- interface to interact with the Application Programming Interface(API); -- algorithm for node monitoring; -- internal interfaces (NM <-> COM, etc.); -- algorithm for transition into sleep mode; and -- NM protocol data unit (NMPDU).Adaptation to bus protocol specific requirements Adaptation to bus protocol specific requirements consists of the following: -- CAN, VAN, J1850, K-BUS, D2B, etc.; -- error handling, e.g. bus-off handling in a CAN, transmission line error handling; and -- interpretation of the status information, e.g. overrun or error active/passive in a CAN.Adaptation to node resources Adaptation to node resources consists of the following: -- scaling of the NM as a requirement of the node; and -- application-specific usage of the NM services. Adaptation to hardware-specific requirements This consists of adaptation to a protocol circuit and a physical layer circuit, e.g. switching the bus hardware to one of the possible physically power save modes.Station management (system-specific algorithms) There are a variety of additional tasks involved in coordinating a network. These are not described in ISO 17356, since they are system-dependent. Hence, these tasks are done by the application, e.g. by a module called station management.Philosophy of node monitoring Node monitoring is used to inform the application about the nodes on the network. Thus, the application can check with the appropriate service if all stations required for operation are present on the network.