摘要:
Un procédé est dédié à la mise en veille d'un réseau d'interconnexion local (ou LIN) comprenant un bus (B) auquel sont connectés un noeud maître (NM) et au moins un noeud esclave (NES) de type dit sécuritaire. Ce procédé comprend i) une première étape dans laquelle le noeud maître (NM) transmet sur le bus (B) au moins un message de préparation à la mise en veille qui est destiné à signaler à chaque noeud esclave sécuritaire (NES) qu'il vient de déclencher une procédure de mise en veille pour qu'il se prépare à se mettre en veille réseau, et ii) une seconde étape, postérieure à la première étape, dans laquelle le noeud maître (NM) transmet sur le bus (B) un message de mise en veille destiné à déclencher la mise en veille réseau de chacun des noeuds esclaves. Chaque noeud esclave sécuritaire (NES) est agencé de manière à passer dans un état de veille réseau en l'absence de réception du message de mise en veille qui suit la transmission d'un message de préparation à la mise en veille d'une procédure de mise en veille déclenchée.
摘要:
In a system and a method for controlling bus-networked devices with a gateway via an open field bus, a simplification is intended to be provided such that complex wiring is dispensed with and the user can check the system, configure it and restart it in the event of error messages with little operating complexity. To this end, such a system is provided with a single pluggable connecting line (8) within the system for connecting bus subscribers (N1 to Nx) and gateway (20) and for transmitting control and/or status data and power. In a method for controlling bus-networked devices in circuits with a gateway via an open field bus, the gateway does not expect any bus subscribers (N1 to Nx) for solving the problem in an initial desired configuration, and a configuration mode is started in the gateway in order to accept at least one bus subscriber (N1 to Nx) and produce a new desired configuration for the at least one bus subscriber (N1 to Nx).
摘要:
Networks on board of vehicles have to provide a rapid data throughput, and be still inexpensive and electromagnetically compatible (EMC). An interface (100, 110) comprising at least one physical layer and a method for transmitting at least one bit to at least one two-wire bus (10, 12), in particular to at least one C[ontroller]A[rea]N[etwork] bus, for example based on the ISO 11898 standard, are disclosed. It is proposed that the transmission takes place on the basis of the L[ocal]I[nterconnect]N[etwork] protocol. The same technology can be implanted in a device or a circuit arrangement.
摘要:
In the inventive method for operating a LIN-bus (2, 20), in a normal operating mode (28) of the LIN-bus (2, 20), data are transmitted between subscribers by means of a LIN-protocol. For data transmission in a special operating mode (30), the system is switched over from the LIN-protocol to a proprietary protocol.
摘要:
Networks on board of vehicles have to provide a rapid data throughput, and be still inexpensive and electromagnetically compatible (EMC). An interface (100, 110) comprising at least one physical layer and a method for transmitting at least one bit to at least one two-wire bus (10, 12), in particular to at least one C[ontroller]A[rea]N[etwork] bus, for example based on the ISO 11898 standard, are disclosed. It is proposed that the transmission takes place on the basis of the L[ocal]I[nterconnect]N[etwork] protocol. The same technology can be implanted in a device or a circuit arrangement.
摘要:
To provide a bus system having a plurality of stations that are coupled together by an arrangement of lines and each have a transceiver and a control unit, a microcontroller, or the like, and to specify a method of encoding a digital message on a bus system in which method the digital message comprises at least one part that is encoded in a non-bitratedependent manner and by means of which method it becomes possible for a transceiver or a system base chip to independently receive and analyze the data transmitted on the bus line, and in particular, in accordance with the method, to individually wake a bus node by means of a given wake-up message even when the part of the bus node that is on standby at the relevant point in time does not have an accurate timer and also does not have any knowledge of the bitrate at which the data is transmitted on the bus, provision is made, under the bus system according to the invention, for at least one transceiver (100) to comprise means for the non-bitrate-dependent analysis of digital signals and, under the method according to the invention, for the value of a bit in that part of the message that is encoded in a non-bitratedependent manner to be represented by the lengths of successive dominant and recessive phases.
摘要:
Die Erfindung betrifft ein Verfahren und ein System zur Parametrisierung von Buskomponenten (A1, ... An, BL1, BL2, S1, S2), die als programmgesteuertes Slave-Einheiten durch ein Bussystem (1) mit Master-Slave-Struktur mit einer programmgesteuerten Master-Einheit (M) kommunizieren können, wobei den Buskomponenten (A1, ... An, BL1, BL2, S1, S2) individuelle Parameter von der Master-Einheit (M) durch einen Parametrisierungsschritt einprogrammiert werden und dieser Parametrisierungsschritt innerhalb des Datenprotokolls des Bussystems (1) von der Master-Einheit (M) für jede Buskomponente abhängig von der Systemkonfiguration einmalig oder mehrfach und/oder zyklisch durchgeführt wird (Figur 1).
摘要:
Verfahren und Vorrichtung zur Übertragung von Informationen auf einem Bussystem mit wenigstens zwei Teilnehmern sowie Bussystem, wobei genau ein übergeordneter Teilnehmer (Master) und wenigstens ein untergeordneter Teilnehmer (Slave) vorgesehen sind und die Informationen in einem vorgebbaren, abgeschlossenen Nachrichtenrahmen übertragen werden, welcher neben den zu übertragenden Informationen auch Sychronisationsinformationen enthält, wobei unterschiedlichen Informationen unterschiedliche Informationskennzeichen eindeutig zugeordnet sind, wobei nach jedem abgeschlossenen Nachrichtenrahmen eine Anzahl von Informationsabschnitten vorgesehen ist, in welchen der wenigstens eine untergeordnete Teilnehmer Informationen eintragen kann.
摘要:
A control system comprises at least one electronic control unit (10) intended to manage the passenger compartment and/or vehicle body functions, which can be connected to a plurality of driving circuit modules (14-17) for driving on board devices through a serial communication network (12), in which the driving modules (14-17) of the on board devices are each connected through a respective peripheral communication branch (24-26) to a common node of the network (12), and to the control unit (10) through a single main physical communication line (20). An interface circuit (35) is interposed between the main communication line (20) and the branches (24-26) of the network (12) at the common node, and includes a plurality of controlled switching devices (40) corresponding in number to the number of branches (24-26) of the network (12), and is operable selectively to interrupt connection of one or more peripheral communication branches (24-26) to the main communication line (20).
摘要:
A method of determining the identification numbers (DevIDs) of slave units which are connected to a master unit in a Local Interconnect Network (LIN) comprising the steps of: i) formulating a set of slave units under consideration, being an initial set comprising the set containing the identification numbers (DevIDs) of all possible connected slave units (S1); ii) sending a request to all connected slave units in said set to forward their identification number (Identification number (DevID)) to the master unit (S11); iii) determining whether no slaves, one slave, or plurality of slaves have replied (S12); iv) if there is a single response, storing the received Identification number (DevID) (S13).