Aim To achieve multitask data procssing in a wireless alarm system by computer. Methods The alarm system was composed of hardware and software. The hardware was composed of a master master computer and slave transmi...Aim To achieve multitask data procssing in a wireless alarm system by computer. Methods The alarm system was composed of hardware and software. The hardware was composed of a master master computer and slave transmitters. On urgent ugent occasion, one or more of the transmitters transmitted alarm signals and the master computer received the signals; interruption, residence, graph and word processing were utilized in software to achieve multitiask data processing . Results The main computer can conduct precise and quick multitask data procesing in any condition so long as alarm signals are received. The processing speed is higher than ordinary alarm System. Conclusion The master computer can conduct safe and quick multitask data processing by way of reliable design of software and hardware , so there is no need of special processor.展开更多
Aim To design the home -made embedded real time operating system COSIX V2.O/RT developing platform,the Mach operating system interprocess communication mech- anism based on object-oriented technique was analyzed. Met...Aim To design the home -made embedded real time operating system COSIX V2.O/RT developing platform,the Mach operating system interprocess communication mech- anism based on object-oriented technique was analyzed. Methods Not only being the trans-mission channel,but also being the abstract of all the entity in the Mach operating system.ports play the most important role in Mach IPC(interprocess communication).Ports were de-vided into 4 types: system ports, privileged ports user ports and kernel ports.All these ports'creation,run and kill processes and the message transmission in IPC were analyzed.ResultsMach IPC has been widely used in Client/Server run environment.Packing and unpacking inmessage transmission must restrict the run efficiency of IPC Conclusion To enhance IPC runefficiency and at the same time enhance the operating system's run efficiency,some of thesystem calls should be rewritten and implemented with trapped mode in kernel.In the end the aim of designing real time operating system is achieved.展开更多
文摘Aim To achieve multitask data procssing in a wireless alarm system by computer. Methods The alarm system was composed of hardware and software. The hardware was composed of a master master computer and slave transmitters. On urgent ugent occasion, one or more of the transmitters transmitted alarm signals and the master computer received the signals; interruption, residence, graph and word processing were utilized in software to achieve multitiask data processing . Results The main computer can conduct precise and quick multitask data procesing in any condition so long as alarm signals are received. The processing speed is higher than ordinary alarm System. Conclusion The master computer can conduct safe and quick multitask data processing by way of reliable design of software and hardware , so there is no need of special processor.
文摘Aim To design the home -made embedded real time operating system COSIX V2.O/RT developing platform,the Mach operating system interprocess communication mech- anism based on object-oriented technique was analyzed. Methods Not only being the trans-mission channel,but also being the abstract of all the entity in the Mach operating system.ports play the most important role in Mach IPC(interprocess communication).Ports were de-vided into 4 types: system ports, privileged ports user ports and kernel ports.All these ports'creation,run and kill processes and the message transmission in IPC were analyzed.ResultsMach IPC has been widely used in Client/Server run environment.Packing and unpacking inmessage transmission must restrict the run efficiency of IPC Conclusion To enhance IPC runefficiency and at the same time enhance the operating system's run efficiency,some of thesystem calls should be rewritten and implemented with trapped mode in kernel.In the end the aim of designing real time operating system is achieved.
