Papers by Keyword: Alarm

Abstract: This paper proposes an intelligent system of detecting air quality based on SPCE061A. The system mainly detects the concentration of combustible gas in air through gas sensors. After a series of data analysis, air quality information will be presented on the LCD screen. At the same time, when the gas concentration exceeds a value, it can relive harm automatically and remote alarm. So that it can prevent the happening of the malignant accident.

Abstract: Smart wristband has recently emerged as one of the most popular smart wearable devices. With the help of smart wristbands, we can easily gather and record the user's data of everyday life including exercising, sleeping, diet, etc. In this work, we explore the feature of falls of the old and redesign the smart wristband to detect their movement. We propose a novel algorithm to judge whether he/she stops in a sudden, then produce vibrations through the man-machine interactive interface that provided by the smart wristband. The wearer can judge whether it is misjudged if he is still in conscious, if so he can press a button to stop the shaking or the wristband will give an alarm through communication interface to the medical care center.

Abstract: Power transformer of rural is prone to theft and damage, we always put the transformer in the house or take care of it to solve this problem, however, the shortage of these two methods is to increase the cost of power supply, bringing inconvenience for people's production and life. This system is the device that can overcome the shortage of technology and provide base-station dual positioning of GPS and GSM, it will locate and track the transformer, preventing the transformer to stolen effectively.

Abstract: Many successful applications for the online monitoring of the insulation condition for electric power transformers have been reported over last thirty years. However, false or unsolved alarms have been quite frequently generated by those condition monitoring systems. Failures and some occasionally catastrophic accidents involving transformers have still occurred. A highly reliable insulation condition online monitoring and real-time alarm system has been developed, to help resolve these problems. An electric power transformer has strongly linked mechanical, electrical, magnetic, chemical and thermal characteristics, and is also directly linked to circuit breakers and generators. Team Intelligence (TI) was employed to integrate all the monitoring modules of the various different aspects of the transformer into one unique system. This system could also be integrate with the condition monitoring systems of various linked facilities, such as the monitoring systems of the turbine and the generator in a Optimal Maintenance Information System for Hydropower Plant (HOMIS). Highly reliable monitoring and real-time alarms of transformer insulation condition could be achieved, due to highly coordinated and rapid response features. This system has been deployed in several hydropower plants. The industrial application examples are demonstrated.

Abstract: High-capacity OLT equipments are widely used in modern communication network. Among the communication equipments, realization of alarm function has an important research significance and wide application prospect. The article simply introduces the demand of alarm of OLT devices and simple network management protocol SNMP and explains the method of realizing alarm information by using SNMP trap. It also introduces the construction of trap message and explains the process and action of network management system after receiving trap information in detail, as a result, realizes the alarm design of high-capacity OLT equipment.

Abstract: On the basis of current Charge Detail Record (CDR) collecting process in one communication operator, the paper analyzed processing bottleneck of this module. It easily caused system untimely collecting CDR and was unable to response promptly to fault. This paper added a Disaster Recovery System with collecting procedures to ensure collecting CDR promptly. And it analyzed and monitored abnormal situation such as CDR collecting with delay or processing with abnormity in the billing system, CDR generating with delay or abnormity in the device or platform and so on. Then it would alarm by sending alarm short messages and displaying alarm hints. The results show that this scheme can effectively collects CDR and discovers abnormity promptly in the billing system, device and platform. And it is much better than the old one in processing timeliness, system safety and stability.

Abstract: The paper adopts the prototyping, experimental method and concurrent development method in the software engineering, use the related programme design to monitor the whole campus network, particularly the surveillance monitoring and log analysis of the dormitory network accounting server clusters ,SAM self-server, and regional convergence to fulfill the automatic sending of the malfunction and abnormal information by MSN and SMS to inform the system administrator so that eventually the warning and surveillance to the campus network is eventually fulfilled.

Abstract: The HIRFL system is the most advanced heavy ion research equipment in China. Every year, we use it to do a lot of important scientific experiments, so it is very important to ensure it safe operation, which is the responsibility Institute of Modern Physics Chinese Academy of sciences. In the HIRFL system, many of the magnet and power need water for cooling, so the water system plays an important role. This paper designs a water pressure monitoring system in order to guarantee the normal operation of the water system and provide chain protection. It can monitor the water pressure throughout to the HIRFL system in time, and intuitive computer display in the control room. This paper gives the theory design, and the concrete practice, and evaluates the effect after the field operation.

Abstract: The AT89S52 MCU is the central core of the system which combined with external circuit modules for data processing. Under the stable supply of 5v DC power, the each module can be initialized by MCU, through the serial port communication technology for data exchange. The single serial bus interface technology is used to obtain DHT11 temperature and humidity sensor testing data in the system. Through the MCU data processing, the detected data will be compared with the alarm data which is given by the users. When a given range is exceeded by the detected data, the sound and light alarm is triggered, moreover, temperature and humidity control is performed. Compared with the LCD1602, the advantage of the temperature and humidity remote monitoring system are the simple structure of the circuit, work stability, accuracy and fully suitable for the need of temperature and humidity monitoring system in human living environment.

Abstract: The framework and functions of Soft Science Laboratory about provincial electric power company operation monitoring and decision-making simulation are introduced. Based on the theory of recognizing-analysis-tracing-handling, a network topology which reflects the operation status on enterprise business flow and performance flow is put forward. Through monitoring the key indicators on the network topology, abnormal changes are detected. Combined with analyzing external policies, the Soft Science Laboratory makes a prediction and a timely warning. And it assists the leadership of the company to make corresponding decisions in order to improve the company's lean operation level.