ABSTRACT
The end nodes with the utilization of measuring the temperature and humidity of the cab were installed in the cab of refrigerated truck, and the wireless gateway that gets the information from end nodes by wireless together with the status of the refrigerated truck was sent to server application by GPRS network; then, the application server analyzed the trucks’ status, including humiture, acceleration and location, speed, and so
1 GENERAL INSTRUCTIONS R gcheng, China's fis ries b g city, is known
as the Chine e fishing village that has form d the oc an, near the ocean fishing, mariculture, and deep processing of a combination of modern fishing patterns. The seafood is transported to various places of China every day. With seafood as a special production, freshness is one of the most important goals that consumers pursue. It needs a rigorous temperature control from processing to eating, especially live or frozen is mostly used modes. Taking ice-cold seafood cold-chain transportation as an example, it should make sure that the food is transported in proper low-temperature circumstances, avoiding the food soaked in ice water for a long time. Currently, cold-chain logistics company usually place a temperature recorder in the cab. The owner of the cargo only checks up the recorder to confirm whether the temperature is in the range of demanding temperature in the end. Although this method can make sure that the abnormal which will be a large lost for corporation can be found after happened, it cannot support the early warning to avoid the occurrence. According to the issues of cold-chain transport, this article presents a monitoring system to support early warning to the driver, administrator, and owner of the cargo. GPRS network, WSN and GIS technology were used to realize the system.
