The Design And Implementation Of Mobile Monitoring System Of Gas Station

Recently,mobile device such as smart phone has become an important tool for people to work and to live,mobile device has been used more often to deal daily work.At present,in our country,the automation and information of retail business like gas station is developing to a certain level,we can see whether the equipment in the gas station is running normal and query all aspects of the reports which record oil feed,sale and storage information through computers.All the situation in gas station can been seen through computers,too.However,monitoring efforts are still not enough,there are also some exceptional conditions such as oil stolen,oil spill are lack of effectively discovery and treatment.When gas station is busy,it can't get treated timely.As a result,the economic losses happened.In order to further enlarge degree of surveillance gas stations,a mobile surveillance system for gas station is designed and implemented.Gas station staff can monitor and learn the state of the gas station site,so that the gas station management becomes more simple and efficient.The main contents and results of this research include the following four aspects:1.In this paper,we implement the mobile surveillance system for gas station in a mixed developing way.The advantages and disadvantages of the hybrid development are relative to the native development and web development is analyzed and compared,so that we can choose the stable and efficient AppCan development platform as the tool for developing cross-platform mobile App.On this basis,we focus on the theory of cross-platform AppCan and how to use HTML5+CSS3+Javascript to develop cross-platform App.2.We implemented mobile real-time surveillance the gas station tanks,oil gun and transaction records.We send the frequently changed data to the mobile client by WebSocket.WebSocket server will immediately retransmit this piece of data to the client which subscribe to that,and once this piece of data is found send by the subscribed client.Which can reduces the system pressure and improves real-time communication.3.We established busy surveillance mechanism.Gas station business process is divided into three states:idle,smooth and busy.And also,we designed the transition rules between every states in the business process of the gas station.According to this rule,we can push the busy state of gas station to the users,which is convenient for users to learn about the state of gas station and pay more attention to whether an exception occurs,so that they can make good oil distribution plan ahead based on historical busy periods.4.We established gas station warning model in order to implement flexible and effective management mechanism.The warning model is divided into four parts:data acquisition,alarm rules,alarm engine and alarm generation.We analysed the relationship between different alarm situations focusing on the oil spill detection and we developed the overall alarm model so that the users can configure the alarm rules flexibly.When alarm occurs the mobile devices will vibrate to inform the gas station staff,so that abnormal situation will be found timely and processed effectively,which can monitoring the unusual situations in real time and reducing the economic losses and eliminate the gas station security risks.