Design And Implementation Of Cold Chain Monitoring And Scheduling System

With the development of the socio-economic,people's living standards are increasing,the food,milk products and the requirement of freshness of some drugs is getting higher and higher.Transportation process monitoring is not timely and vehicle scheduling is not perfect will often make the quality of goods,transportation costs rise.Therefore,real-time monitoring and scheduling of cold chain logistics transportation plays a vital role in the transportation process.The cold chain transport process in real-time monitoring can ensure the quality of the goods;Second,according to customer demand for the use of optimization algorithms on transport vehicles scheduling,looking for the shortest path in the transport process can reduce the transport time and distance,then reduce transportation costs.Based on the research background and significance of the cold chain logistics vehicle monitoring and scheduling system,this thesis mainly designs and realizes the host computer part.At the same time,the vehicle scheduling optimization algorithm is studied.Car terminal will collect the temperature and humidity,geographical location and other information through the wireless transmission module and upload to the monitoring center.The host computer part monitors server port through Java script,reads the data collected by the sensor and enters the database.The system will publish the temperature and humidity,vehicle location and other information to the website,and the electronic map will be embedded in the page through Baidu map API,so that the vehicle's geographical location can display on the map.When the users need to view the data,they can entry the website to track the information of the vehicle information.In respect of system scheduling optimization algorithm,this thesis makes use of improved ant colony algorithm to solve the cold chain logistics example.Before the distribution,find the optimal distribution path to reduce the cost of distribution process according to customer information.Design of cold chain logistics vehicle monitoring and scheduling system is based on B/S network architecture.Using the Apache server,the background database is MySQL database developed by the Swedish MySQL AB.The system development environment is Zend Studio,Baidu map is used as the map.After test,the system can run stably,realizes the real-time positioning of the expected vehicle,real-time display of the temperature and humidity of thevehicle,cargo alarm,vehicle scheduling and information management.