46results about How to "Realize simulation test" patented technology

The invention discloses a test system of asynchronous broom type remote sensing solid imaging simulation and a test method thereof, relating to the technical field of remote sensing solid imaging simulation; in the invention, the test method thereof comprises the following steps of: building a test system of asynchronous broom type remote sensing solid imaging simulation in an electromechanical integral structure, and realizing the scanning image formation and simulation test of a three-dimensional topography template in a visual field space; realizing the simulation test of the influence of CCD (Charge Coupled Device) orbit change to the resolution ratio of the asynchronous broom type remote sensing solid formed image by manufacturing a standard geographic and geomorphic template; and realizing the simulation test of the influence of three-dimensional topography fluctuate gradient change to the resolution ratio of the asynchronous broom type remote sensing solid formed image by manufacturing a standard geographic and geomorphic resolution ratio template. The test system and the test method have good practicability, and can effectively simulate the asynchronous broom type remote sensing solid image formation to obtain the simulative remote sensing image data, thereby providing technical and data support for scientific research.

An air-cooled evaporative composite cross-flow closed cooling tower performance testing system and testing method belong to the technical field of cooling water circulation. It is difficult to measure the operation performance of variable working conditions and variable structures. By controlling the air inlet parameters, adjusting the air supply volume and the position of the air supply port, adjusting the water inlet area, adjusting the spray water volume and replacing the light tube heat exchanger, packing and finned tube replacement The relative position of the heater can realize the test of the influence of different operating parameters and structural characteristics on the performance of the composite type, and realize the simulation test of a set of test systems with multiple operating conditions, multiple parameters and multiple structures.

The invention discloses a shock wave tunnel for a hypersonic air vehicle ground simulation test. The shock wave tunnel for the hypersonic air vehicle ground simulation test mainly comprises a gas power piston formation section (1), a driving section (2), a driven section (3), a transition section (4), a spray pipe section (5) and a test section (6), wherein the gas power piston formation section (1), the driving section (2) and the driven section (3) are arranged inside the shock wave tunnel, and the transition section (4), the spray pipe section (5) and the test section (6) are arranged outside the shock wave tunnel. An inner diameter section of the driving section is a uniform section segment, and inner diameter sections of the driven section and the transition section are both from-big-to-small variable cross-section segments. The gas power piston formation section is located on the tail portion of the shock wave tunnel, and a plurality of gas power pistons (13) are evenly distributed inside the gas power piston formation section. The driving section is located between the gas power piston formation section and the driven section. The transition section is connected between driven section and the spray pipe section, and a seal membrane is connected between the transition section and a connection flange of the spray pipe section. The test section is located in front of the spray pipe section. According to the shock wave tunnel for the hypersonic air vehicle ground simulation test, due to the fact that the shock wave tunnel which is jointly driven by detonation and pressurization is adopted, the tests of the hypersonic air vehicle aerodynamic performance and the engine reliability are achieved, the energy usage ratio is improved, the test cost is lowered, and the test period is shortened.

Disclosed is a universal 1553B bus communication simulation testing system and method. The system comprises a computer, a simulator, a master control 1553B communication node set and a slave 1553B communication node set. The computer is connected with a CPU (central processing unit) sub-board of the master control 1553B communication node set through the simulator. The master control 1553B communication node set is connected with the slave 1553B communication node set through an A / B 1553B communication line. The computer controls a CPU to initialize any two of 16 1553B communication nodes in the master control 1553B communication node set to BC (bus controller) and BM (bus monitor) operating modes, other 14 ones to RT (remote terminal) operating modes and 16 1553B communication nodes in the slave 1553B communication node set to the RT operating mode. A maximum-scaled communication network system based on 32 1553B communication nodes is constructed, and universal 1553B bus communication simulation testing is achieved.

The invention provides an electric vehicle function test system, which relates to the technical field of electric vehicle production test. The electric vehicle function test system includes a principal computer, a first CAN communication module and an HIL signal output module which are connected with the principal computer, and a BOB controller which is connected with the first CAN communication module and the HIL signal output module. The BOB controller is further connected with an electronic control unit and a vehicle electrical appliance of an electric vehicle under test. The principal computer is used for outputting a gating control signal to the BOB controller through the first CAN communication module and outputting an HIL signal to the BOB controller through the HIL signal output module. The BOB controller is used for controlling the connection or disconnection between the vehicle electrical appliance and the electronic control unit and the connection or disconnection between the vehicle electrical appliance and the HIL signal output module according to the gating control signal. Through the scheme of the invention, the function of electric vehicles can be automatically tested, and the test efficiency is improved.

The invention discloses an ECN board, which includes a network interface module communicating with external equipment, a data processing module communicating with the network interface module through a MAC interface, and a storage module communicating with the data processing module; the network interface module is used to realize Ethernet The mutual conversion between the waveform and the RMII network level signal, the data processing module is used to call the TRDP protocol stack, parse the first MAC data packet into the first TRDP frame, parse the first TRDP frame into the first data, and convert the first data sending to the host computer; or, packing the second data received from the host computer into a second TRDP frame, combining the second TRDP frame into a second MAC data packet, and sending it through the MAC interface. It can be seen that the present invention realizes the simulation test of the application function of the ECN bus through the interaction between the ECN board and the external equipment and the host computer.