Time-triggered Co-operative (TTC) scheduler provides a simple and reliable operating environment that matches precisely the needs for use in safety-related applications. However, in the design and implementation phases, such scheduler may be suffered from several failure modes that are the fragility of scheduler and the impact of task jitter. The main contribution of this paper is to address the need for an effective scheduling algorithm and scheduler implementation to assure that the TTC can be executed appropriately without an impact on the timing behavior in the system. The paper has developed an algorithm called "TTSA-MTI" to automate the process of scheduling TTC-MTI scheduler which is designed based on the employment of "Sandwich Delay" mechanisms and technique of "Multiple Timer Interrupt". The results show that the proposed algorithm can help in a significant reduction of computation time and achieve better performances in task release jitter as opposed to a related scheduler. In conclusions, the paper indicates that TTSA-MTI algorithm is an effective task scheduling for use with a range of TTC architecture.

Generally, estrus of cow can be observed from its body such as swollen vagina, slime and mydriasis or its behaviors such as bellow out, ride piggyback with the other or let the other rides piggyback. These symptoms will only occur within 18 hours. To access the best result, therefore, the insemination should be processed during on 9-18 hours of that period time. Therefore, this project proposes the application of accelerometer for checking estrus of cow. The accelerometer is installed on the cow's front leg. When the cow rides piggyback the other, resulting the output signal of accelerometer is changed. This signal will be sent to the microcontroller for processing and send the signal through wireless to computer for displaying. The proposed system will be useful to improve efficiency of the insemination.

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Time-triggered system provides more attractive options for many safety-related and safety-critical embedded systems. The work is mainly concerned with developing novel scheduling algorithms and implementation techniques which can be automated and ensured predictability during the process of time-triggered cooperative architecture. The major objective of this work is to modify an automated scheduling technique for use with time-triggered cooperative based on the employment of multiple timer interrupts. The results show that proposed algorithm provides the effective schedulability and can help in a significant reduction of scheduling time as compared with a traditional scheduler. Index Terms-Time-triggered architecture, time-triggered cooperative scheduler, multiple timer interrupts.