43results about How to "Implement synchronous testing" patented technology

The invention discloses a smart power grid distribution type measurement and control synchronizing method. A test terminal with Ethernet networking and a GPS (Global Positioning System) synchronous sequence interface forms a hardware platform together with a server by a known rapid Ethernet exchanger, and the synchronous measurement and control of a distribution type power grid can be realized under the control of a synchronous acquisition and management program, wherein 128 terminals form a distribution type test system and are respectively connected at different parts of transformer substations or factories to complete the local data acquisition, control and processing, and meanwhile, each terminal is managed by a Workstation through a network so as to realize the synchronous control of the local test terminal and other terminals and the data processing by cooperation with the other terminals. According to the smart power grid distribution type measurement and control synchronizing method, the synchronous test between the remote test terminals of the power grid is realized, and the demands on the safety monitoring, grid-tied control and proper scheduling of each station by the distribution type power grid can be met.

The invention relates to a program file running method and device, a terminal and a storage medium, and belongs to the technical field of computers. The method comprises the steps of obtaining a preset path; When the first program file of the application program is generated, sending a transmission instruction to the second terminal through communication connection with the second terminal, wherein the transmission instruction carries the first program file, and the transmission instruction is used for indicating to store the first program file in a preset storage space; And sending a runninginstruction to the second terminal through the communication connection, the running instruction being used for indicating the second terminal to run the first program file stored in the preset storage space. Interaction is carried out through communication connection established between the first terminal and the second terminal. The first program file can be stored in the preset storage space, the second terminal can be controlled to automatically run the first program file, technicians do not need to execute multi-step operation on the first terminal and the second terminal respectively, operation is simplified, and consumed manpower resources are reduced.

The invention provides a high-pressure dynamic sealing testing device for a rubber ring, and belongs to the technical field of aerospace and mechanical engineering. The device comprises a reciprocating moving testing machine, a high pressure aerator, a gas flow meter and a test implementing body; the reciprocating moving testing machine moves by a reciprocating manner to enable the frictional movement between a sealing rubber ring on a connecting rod in the test implementing body and a replaceable lining testing material, and the reciprocating moving testing machine is able to synchronously measure the force and displacement; the gas leakage quantity can be synchronously measured through a designed pipeline system. The device has the effect and benefit that the high pressure dynamic sealing of the rubber ring can be tested under different design parameters; the device has the characteristics of being simple and convenient to assemble, flexible and easy to be used.

The invention relates to a wind generating set load testing system meeting the international electrical committee IEC61400-13 standard. The wind generating set load testing system is characterized by comprising a subsystem and a master control system (3), wherein the subsystem comprises a wheel hub testing system (1), a tower top testing system (2) and a meteorological testing system (4); the meteorological testing system (4) is arranged at the bottom of a meteorological anemometer mast; the tower top testing system (2) is arranged on the top of a tower cylinder; the wheel hub testing system (1) is arranged in a wheel hub of the wind generating set and rotates with the wheel hub of the wind generating set when runs; and the master control system is arranged at the bottom of the tower cylinder. The wind generating set load testing system can be applied to verifying design load of the wind generating set, optimizing design scheme of the wind generating set, detecting quality of the wind generating set which leaves factory, avoiding safety accidents and the like and has high practicability.

The invention discloses an audio and video signal synchronization device applicable to bubble acoustic research, which comprises a signal generator, a light emitting diode and a loudspeaker. The output end of the signal generator is connected with a three-way joint; the three-way joint is connected with the light emitting diode and the loudspeaker; the light emitting diode is arranged in a shooting range of a camera; and the loudspeaker is arranged beside a hydrophone. The invention further provides an audio and video signal synchronization method applicable to bubble acoustic research. According to the audio and video signal synchronization device and method applicable to bubble acoustic research, which are disclosed by the invention, when sound and video acquisition equipment does not have a trigger function, high-accuracy synchronous testing of audio and video signals can still be implemented.

The present invention proposes a method and device for synchronously testing the torque coefficient and friction of a robot's joint motor. The method includes: calculating the analytical expression of the driving torque of the driving joint of the robot according to the dynamic model of the robot and the structural parameters of the robot; The experimental data is input into the analytical expression of the driving torque to obtain the forward torque and reverse torque, and the driving current is fitted to obtain the slope and intercept of the fitted linear function at different experimental positions; combined with the ratio of the reduction ratio of the joint to be tested to obtain the The motor torque coefficient when the joint is moving forward and reverse, and the intercept is taken as the opposite number to obtain the friction coefficient when the joint to be tested is moving forward and reverse; calculate the motor torque coefficient and friction coefficient of different experimental positions The average value is used to obtain the target torque coefficient and target friction value of the joint to be tested during forward and reverse motion. Thus, the synchronous test of the joint motor torque coefficient and the forward and reverse friction coefficient is realized, and the test accuracy is improved.

The invention belongs to the field of aerospace servo valve testing, in particular to a dynamic loading device for servo valve dynamic pressure feedback testing, which includes a dynamic loading cylinder, a displacement sensor, a speed sensor, a pressure sensor, a loading servo valve, a servo valve to be tested and a dynamic loading device. Pressure feedback tester; there is a piston rod in the dynamic loading cylinder, a piston is arranged in the middle of the piston rod, and four cavities are formed by the piston rod, the piston and the inner wall of the dynamic loading cylinder. The present invention adopts a dynamic loading cylinder designed with four cavities, and installs speed sensors, displacement sensors and pressure sensors on the four cavities of the cylinder respectively, so that the load pressure difference loading and state detection functions can be realized at the same time; at the same time, the servo loading dynamic The closed-loop control of the hydraulic cylinder maintains the stability of the load pressure difference, improves the efficiency and accuracy of the dynamic pressure feedback test, and provides guarantee for the production of the dynamic pressure feedback servo valve.

The invention provides a rubber ring high pressure dynamic sealing test device under extreme conditions, and belongs to the technical field of aerospace and mechanical engineering. The rubber ring high pressure dynamic sealing test device under the extreme conditions comprises a reciprocating movement test machine, a high pressure inflator, a gas flowmeter, a heating device, a refrigeration device and a test implementation body. Frictional force, displacement, temperature and gas leakage can be synchronously measured under sealed high pressure dynamic reciprocating movement of a rubber ring in the extreme conditions. The effects and the benefits of the rubber ring high pressure dynamic sealing test device under the extreme conditions are that dynamic sealing performance testing of the rubber ring under different extreme conditions (high pressure, high temperature and low temperature) can be realized. The device has the characteristics of being easy and convenient to assemble and flexible and easy to use.

The present invention provides a multi-condition multi-sample fuel cell stack test system and its control method, which can realize synchronous testing of multiple stack objects under different working conditions, during one test process or within a time period In this way, the data of multiple stacks to be tested can be obtained, and the mutual influence between multiple stacks to be tested due to different working conditions can be avoided, the efficiency of test data acquisition can be greatly improved, and the test data can be reduced. cost.

The invention discloses a device for synchronously testing a reciprocating type friction power generation output property and a friction coefficient. A to-be-tested upper friction pair is arranged atthe front end, which is connected with a cantilever beam, of a cantilever beam supporting rack; a strain gage is arranged on the cantilever beam; a lower friction pair is arranged on a moving block ifa magnetic shaft linear motor and is positioned under the upper friction pair; the lower friction pair which is driven by the magnetic shaft linear motor to linearly move in a reciprocating manner relative to the static upper friction pair; current and voltage signals of friction power generation are output to a control and test computer; and meanwhile, the strain gage synchronously outputs the friction signals of the upper friction pair and the lower friction pair to the control and test computer. Because the control and test computer simultaneously acquires the current and voltage signals generated by friction power generation of the upper friction pair and the lower friction pair and friction signals, synchronous test on the friction power generation output property and the friction coefficient is realized; influence of interface friction behaviors to the friction power generation output property is discovered favorably; and the mechanism of action of the interface friction behaviors to an electric output property is facilitated.