The Conceiving And Exploring Of Experimenting Platform With Constant Power Of DF7 Internal-combustion Engine

The present stage, the railroad system massive use electronic installation test platforms mostly are the 90's mid and late stage development, Passes through analyzing permanent merit test platform of the diesel locomotive of Dongfeng 7 existence, discovered its mainly composing of some toggle switches and the measuring instrument interior, and existence some questions , for example, function monotonous, the accuracy low, operation tedious, and so on; The quomodo of its examination and the realization function is backward, Because the original test platforms used massively has the electronic contact electric appliance to compose the hard-logic, occurs frequently because the contact open circuit, empty meets the breakdown which, questions and so on short circuit occur, also once logic constitutes, the revision, the debugging is more difficult. The experimental condition and the result mostly showed by the nixietube and the light emitter diode, the tentative data is not intuitionistic,and difficult to realizes the automatic recording. At the same time, also has the operation tediously, the power loss big, the construction cost high, the stable inferior shortcoming.it cannot satisfy present examination already, brought many inconvenient for overhauling.In order to enhance overhauling ability and the experimental accuracy of permanent merit excitatio test platform of the diesel locomotive of Dongfeng 7, and enhancing working efficiency, reducing experiment cycle, we choose a project compounding of the strength controls monitoring configuration software, the labor control machine, the Programmable logic controller, to redesign the test platform, it has be designed to a examination system that function completely, the contact surface intuitionistic, the operational strong. Enables its to realize many functions of the veneer and the complete machine experiment, the long-distance operation and management, the condition of system movement display dynamic, the history performance data inquiry and printing, as well as report and curve preservation and printing ,and so on. Because adopt the quomodo of integrating the configuration software and the labor controls machine, and the new test platform has the design and development cycle short, has the advantage of the system improvement and the promotion merit.