The Transformation Of Parcel Sorting Machine's Control System And Information System

With the continuous development of Economic society, the machines are increasingly required to be intellectualized in order to save the human resources and improve the economic efficiency. Under this background, State Postal Bureau decided to start the Interconnection-intercommunication engineering construction of postal service business system and the net transport system. Within the scope of the postal network service, they operate the beta-network-rization mode to deal with the record mails. The basic idea is: To take establishing the whole nation postal code address information system as the foundation. To carry out integration on the application system such as the production in the electronic branch bureau and the central bureau. To stuck or printed the unique logo bar code without the post bureau information on the domestic ordinary parcels, express parcels, registered printed matters and registered letters. To log in the code when the mail sends and receives and to transmit different kinds of information which corresponds with this mail through the information network. In this way, the record mails can be not only automatically sorted and logged in, but also followed and audited.Linking with the transformation of parcel sorting machines in Jinan Postal District Central Bureau, this article emphatically discussed the transformation of links of parcel sorting machines information, including drive control system, trolley control system, parcel conveyor system, host control system as well as composition of information network.In the transformation of drive control system, the mode of tray-type sorting will mainly replace by the mode of high-speed halved belt sorting which meets the need of new trend of the times to improve the working efficiency. Additionally it has set up the Linear Motor and the vice- driving equipment to make the overall system stabler.In the transformation of trolley control system, the tray-type trolley will mainly replace by the halved belt trolley. Every eight trolleys will be a group and in each group of vehicles, the information transmission is controlled by a control box. Each trolley can turn and reverse by frequency converter and the 3-phase squirrel cage asynchronous induction motor so that it can be accurately go up and down.In the transformation of the parcel conveyor system, it makes full use of the original inactive dynamic scales and coordinates with the phototube on the gantry frame to measure the weight and size of the parcels. It also can automatically achieve the aligning function by rewriting the PLC program for parcel conveyor and improve production efficiency without the second scanning. In the transformation of the soft facility, it has increased the intermediate server. It has used the standard 128 code to scan, sort, seal and send the postal materials in the network all the time so that all mails can be found. All links have avoided the artificial input and this has saved the manpower and reduced the mistake.Expounding my views on the control information system transformation, this article simply explains the basic concepts of PLC controller, frequency converter, the motor and the partial transport protocols which involved in the project. Finally it introduced the software environment disposition to cause the overall system revolution to be normal.