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A scalable and efficient approach for obtaining measurements in CAN-Based control systems
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Orientador(es)
Resumo(s)
The availability of small inexpensive sensor elements enables the employment of large wired or wireless sensor networks for feeding control systems. Unfortunately, the need to transmit a large number of sensor measurements over a network negatively affects the timing parameters of the control loop. This paper presents a solution to this problem by representing sensor measurements with an approximate representation-an interpolation of sensor measurements as a function of space coordinates. A priority-based medium access control (MAC) protocol is used to select the sensor messages with high information content. Thus, the information from a large number of sensor measurements is conveyed within a few messages. This approach greatly reduces the time for obtaining a snapshot of the environment state and therefore supports the real-time requirements of feedback control loops.
Descrição
Palavras-chave
Process control Transducers Data processing Measurement system data handling Local area networks
Contexto Educativo
Citação
Editora
IEEE