【正文】 wist to give settle, system moderate, signal examination and handle etc..Be experimenting a control automatically under, the pletion shifts gear and adds to carry alternative process from blank on schedule to the tallest file, pleting immediately after to be as low as the lowest file to decline file to shift gear from the tallest file, the end pletion pours a file test. Move to experiment is operate by the person to move an operation a pedestal to twist the knob pletion of, its procedure mainly pletes a monitor and reports to the police function. Shifting gear alone carries on experiment to some one appointed file at the request of the factory house. The fatigue test and efficiency experiment a difference to the durable of the gearbox with spread to move an efficiency to carry on a test. Set king have abundant appearance creation system, support the infinite color and 24 kinds of percolation colors, and have abundant of the diagram database and diagram database spirit, abundant of animation conjunction guide. Make use of a set of king39。Pass the plank card munication toward the PLC machine hand to send out to shift gear the control instruction and change the machine to send out what test need to turn through a total line of RS485 soon with add to carry to twist part to still include to change a machine,the spot data to collect card(the PCL818 Ls),PLC the machine can carry out three municate mutually the difference step electric motor of without the class adjust the machine chooses to change the machine with Siemens 6 SE70 serieses, that series changes the vector of the machine adoption exchanges electrical engineering control technique to carry on a control to the electrical vector control also calls the magnetic field definite direction basic way of thinking makes use of dq to revolve to sit the mark transformation, will settle sub electric current to be divided into the magnetoelectricity to flow id 1 with turn the electric current iq 1, keep to turn the son chain during the period of adjusting soon constant, namely id 1 is a constant, municate at this time the electrical engineering adjusts soon the principle and direct current electrical engineering spot data collect the data that the card will collect on the scene to deliver to the instruction pletion that the PLD controller sends out according to the calculator will shift gear the signal conversion for change the machine hand to execute an order.Shift gear the machine hand is the performance organization that controls part for cent, the machine hand sends out according to the PLD of shift gear the instruction pletion to point fair of shift gear action.Experimenting the pedestal machine electricity part is this system is end performance organization, plete to drive the gearbox to correspond to turn soon and add to carry to twist to attain particular test work machine part includes two power a ratio bigger change the electrical engineering with experiment a function of the electrical engineering influences to the whole function very greatly in this system, as a result choose to change electrical engineering with the electrical engineering can satisfy high accuracy to twist and turn to control soon, and the power is enough big, can satisfy this system to experiment the work condition to carry the electrical engineering work while generate electricity the appearance while work, the energy gives something back to the charged barbed wire net, economizing energy the pedestal includes a clutch and spreads to move the organization and automobile to attain to be high to turn soon,high twist the work appearance of the , so the machine part adds accuracy to want automobile gearbox is this system test object, for making to pack time of unload the gearbox short, experiment the set gearbox to clip originally to loosen to open an operation tightly is pass the oil urn 4 stalks to connect to move to press plank to carry out. The system work principleThe system adoption double the electrical engineering imitate the automobile work condition, driving electrical engineering among them through a speed of change the machine to shut the wreath control to imitate an automobile of drive organization, add to carry electrical engineering to pass to change