A Conversion Protocol for 2W Telephone Signal over Ethernet in a Private PSTN

In this paper, we proposed a protocol to convert 2W telephone analog signals to Ethernet data in a private PSTN 2W tactical voice system. There are several kinds of operational problems in the tactical telephone network where 2W telephone copper lines are installed hundreds of meters away from the PBX in a headquarter site. The reason is that it is difficult to install and maintain the 2W telephone copper cable in severe operational fields and to meet safety and stability operational requirements of the telephone line under lighting and electromagnetic environments. In order to solve these challenging demands, we proposed an efficient method that the 2W analog interface signals between a private PBX system and a 2W telephone is converted to Ethernet messages using the optical Ethernet data communication network already deployed in the tactical weapon system. Thus, it is not necessary to install an additional optic cable for the ethernet telephone line and to maintain the private PSTN 2W telephone network. Also it provides safe and secure telecommunication operation under lightning and electromagnetic environments. This paper presents the conversion protocol from 2W telephone signals over Ethernet interface between PBX systems and 2W telephones, the mutual exchange protocol of ethernet messages between two converters, and the rule to process analog signal interface. Finally, we demonstrate that the proposed technique can provide a feasible solution in the tactical weapon system by analyzing its performance and experimental results such as the bandwidth of 2W telephone ethernet network and the transmission latency of voice signal, and the stability of optic ethernet voice network along with the ethernet data network.

Overall design of radiation monitoring system formaritime nuclear facilities

The Radiation Monitoring System (RMS) is designed to check continuously the reactor at the operating set points, it assures that no individual and persons receive an unnecessary or hazardous exposure to radiation. According to the process and operation characteristics of Small Modular Reactor (SMR), these radiation monitoring channels can be grouped into the process radiation monitoring subsystem, the effluent radiation monitoring subsystem, the area radiation monitoring subsystem and the Post Accident Monitoring Subsystem (PAMS). Based on the architecture design of RMS, the demand of signal interface and power interface is analysed. Through introducing the marine environment, the problems of anti-shock, vibration, inclination and swing of loads are put forward.

Implementing Bloom’s Taxonomy Tool for Better Learning Outcomes of PLC and Robotics Course

Instrumentation subject has a major and vital role in the industrial field. The concepts of sensors, actuators, signal interface, and conditioning, programming the microprocessor and microcontroller are the most important requisites to comprehend and contribute to the real-world application. The application of these concepts is PLC and Robotics course where the students can apply and practical experience the output. To design a project and to implement we need multidisciplinary concepts and sequence of steps viz., defining an idea, requirements and the fabricating parts to bring out a visual structure in order to perform an intended function. To inculcate this culture it’s much more important to follow and implement the standard and well-known methodology called Bloom’s taxonomy in the classroom environment for a better outcome of the course. Current leading technology PLC and Robotics course, (which require prerequisite knowledge of courses like Instrumentation, Microprocessors, Mechatronics) are very well connected for applying the gained concepts to continue the stream of the learning process. The paper presents how to bring better learning Outcomes and also create interest in the course PLC and Robotics by implementing Bloom’s taxonomy by conducting activities in the classroom.

Monitoring System of Leading Phase Operation of Generator Based on Virtual Instrument

A monitoring system of leading phase operation of generator based on virtual instrument is presented in this paper. The system is composed of signal acquisition module, signal interface conversion module, data processing module, output control module, data display module and communication module. The signal of leading phase operation of generator is collected firstly. After the signal acquisition, conversion and processing, the related processing and analysis by virtual instrument software module in the computer is carried out. Then the display and control signal is outputted. The real-time monitoring of generator leading phase operation state is realized by the system. The system can realize the real-time and comprehensive monitoring of leading phase operation of generator. The system also can achieve the collection, analysis, processing of data of leading phase operation, and the control, communication and display of output signal. Compared to traditional monitoring system, this system has the advantage of simple, powerful, real-time and high accuracy, and can be carried out through the network of online monitoring and remote monitoring. The monitoring system has greatly reduced the overall cost. The development cycle of the system is also short.