The Design And Implementation Of The Smart Medical Box In Cold Chain Logistics Based On IOT

With the continuous progress of science and technology,the development of the logistics industry has become more intelligent and scientific.Especially information collection become more diversified and visualized in cold chain logistics.Medic transport relies on the temperature environment.The temperature of cold chain logistics transport changes frequently,and become vulnerable to outside interference.It is quite necessary to monitor the temperature to prevent medic from deterioration.Meanwhile,monitoring vehicle location can help logistics enterprises obtain vehicle line and real-time location,which improves the ability of logistics dispatch.The authentication system can ensure that the medicine is signed by a special person,and there will be no wrong sign and theft during the transportation.After obtaining the medicine,they can also scan the QR code on the medicine directly and get the medical information through the display of the LCD screen.The smart medical box monitoring system is based on ZigBee and image processing technology.The system is composed of ZigBee network,gateway,monitoring center and authentication system.1.There are lots of medical boxes in a carriage.The ZigBee network is composed of a ZigBee coordinator and a GPS end-device and some temperature and humidity end-devices.The coordinator allocates network address to end device since the beginning of the network.The temperature and location data is collected by the end device with a variety of sensors,and transmitted to the gateway through the ZigBee network.2.Gateway is composed of CC2530 ZigBee coordinator and GPRS SIM800 A module.The CC2530 coordinator receives the data sent by the end devices.Then it parses and packets the data transmitted to the GPRS module by Serial ports later.GPRS module sends data to the specified server IP address based on TCP protocol.3.Monitoring center is composed of the server,host computer and database.The data is parsed and stored in the SQL server 2008 database by SOCKET.Then,Web monitoring system based on VS2010 platform enables the temperature and vehicle location data display.Moreover,the system calls the Baidu map API to display the location on the map.4.The authentication system is based on image processing technology of OpenCV accordingto Raspberry Pi and a camera.After putting in the id card,the camera extracts the identity information and compares it with the identity information in the local database.After the verification,the box will be open by the control of the relay.