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548 results about "Control test" patented technology

The control test is a way of testing an employment contract to determine who is or is not an employee of a company. The rights, responsibilities and benefits given to a party depend upon this test.

Method for automatically testing relay protection equipment

The invention provides a method for automatically testing relay protection equipment. The method comprises the steps of: generating a test input quantity, detecting an output quantity of an object to be tested, and monitoring an intermediate quantity of the object to be tested through a distributed simulation environment, and forming a complete process of a closed-loop test; storing a fixed value, a pressure plate, a message and other information of relay protection equipment to be tested through a manner of a database, and storing the test input quantity and the output quantity of the object to be tested during the testing process; testing input equipment and the object to be tested through network connection; and controlling test input through a manner of command, then receiving the feedback of the object to be tested, finally intelligently comparing with an expected result stored in the database, and storing a feedback result in the database. By adopting the method for automatically testing the relay protection equipment provided by the invention, external properties of the relay protection equipment can be automatically monitored, the reliability of testing of the relay protection equipment and the testing efficiency are improved, and the probability of finding of hidden defects is increased.
Owner:BEIJING SIFANG JIBAO AUTOMATION

Universal satellite ground overall control test system

The invention relates to a universal satellite ground overall control test system, which consists of a front-end photoelectric conversion module, a measurement and control front-end equipment module, a central processing unit module, a display terminal module and a console module, wherein the front-end photoelectric conversion module is an external hardware interface of the ground overall controltest system and a tested system, and is internally connected with the measurement and control front-end equipment module; the measurement and control front-end equipment module finishes data interaction with the front-end photoelectric conversion module, and a rear end communicates with the central processing unit module and the console module; the central processing unit module receives downlinktelemetry data from the measurement and control front-end equipment module, finishes classifying and storing the data, forwards the data to the display terminal module, and simultaneously, is required to finish storing the uplink remote control information of the console module; the display terminal module receives the telemetry data from the central processing unit module, and finishes work in areal-time analysis way and a delay analysis way; and the console module transmits an uplink remote control instruction to the measurement and control front-end equipment module, and forwards uplink instruction information to the central processing unit module for filing.
Owner:BEIHANG UNIV

Sealed bearing comprehensive performance simulation testing machine

The invention relates to a sealed bearing comprehensive performance simulation testing machine and belongs to the field of bearing performance testing. The sealed bearing comprehensive performance simulation testing machine comprises a bearing test unit, a driving unit, a loading unit, an environment simulation system and a control system. The bearing test unit is arranged in the environment box of the environment simulation system, is arranged on the same plate with the driving unit, and is connected with the loading unit. The driving unit is arranged on the left side of the environment box. The loading unit comprises a radial loading mechanism and an axial loading mechanism. The environment simulation system comprises the environment box, a high-temperature simulation unit, a low-temperature simulation unit, a humidity simulation unit and a dust simulation unit. The control system is connected with the driving unit, the loading unit, and the environment simulation system, and controls test rotating speed, test load, test ambient temperature, and test ambient humidity, and test environment dust concentration. The sealed bearing comprehensive performance simulation testing machine is reasonable in structure, complete in simulated working conditions, good in test results, and easy to operate, and satisfies the evaluation demands of sealed bearing comprehensive performance.
Owner:浙江省机电产品质量检测所有限公司

Megawatt level wind power generation oar-changing bearing friction torque numeric control testing machine and test approach

The invention provides a megawatt wind power generation adjustable blade bearing friction moment numerical control testing machine and a testing method. The tested bearing outer ring is fixed on the machine rack; a main axis is equipped, one end of the bearing inner ring is fixed on the bearing inner ring, the other end is equipped with a radial and axial loading mechanism, in which the radial and axial load cylinder are separately pressured, and is equipped with variable-frequency motor of torque sensor, the driving pinion is meshed with the tested bearing inner ring, which form the loading and transmission system. The testing machine is determined by force analysis and analog loading principle, which is reasonable and reliable, and has simple structure and small size. The closed-loop numerical control system, which is composed of an industrial computer, a hydraulic pressure control member, a hydro cylinder, a feedback element and other components, can realize overall monitor, data collection, analysis, process, and number and graph double output; the size, direction, variation period of the load are accurate, the curves of the load output and friction torque are intuitive, the testing process is highly automatic. And the invention can be matched with manual adjustment. The machine is shutdown automatically if any failure happens. The test provides data support for the bearing wind turbines, which assures that the machine can meet the test need after loading.
Owner:文鉴恒

Performance testing device and method for seawater hydraulic pump in deep sea high back pressure environment

The invention relates to a performance testing device and method for seawater hydraulic pump in deep sea high back pressure environment. The performance testing device mainly comprises a deep sea stimulation cabin, a pressurizing system, a circulating water cooling pipeline, and a monitoring and controlling system; the deep sea stimulation cabin provides back pressures to be borne in environments at different water depths for the performance test of the seawater hydraulic pump through the pressurizing system; stimulation load of the seawater hydraulic pump is freely adjusted by a high-pressure flow control valve which is mounted in the circulating water cooling pipeline; the circulating water cooling pipeline can prevent temperature rise of water in the cabin caused by transformation of the hydraulic energy generated by the working seawater hydraulic pump to the heat energy after the high-pressure flow control valve is uploaded; the monitoring and controlling system can control test working conditions of the seawater hydraulic pump and acquire test parameters such as temperature, pressure and flow. The testing device can stimulate the back pressure environment at an appointed sea depth and realize performance test on the seawater hydraulic pump.
Owner:BEIJING UNIV OF TECH

Testing device and method applicable for spacecraft high-stability pointing control

The invention provides a testing device and a method applicable for spacecraft high-stability pointing control. The testing device comprises a base, an air bearing, an instrument platform, a spacecraft pointing unit, a spacecraft attitude control unit, a platform data instruction transmitting-receiving system, a mark point, a target measuring head unit, a reflection prism, a counteractive momentum wheel system, an image processing unit, a photoelectric auto-collimator, a laser tracker, an off-platform data instruction transmitting-receiving system and a camera. According to the device and the method, the characteristics of a micro-interference moment environment are simulated by fully using the air bearing; as the high-precision position and attitude measuring techniques of equipment such as the image measuring unit, the laser tracker and the photoelectric auto-collimator are combined, the goal of spacecraft high-stability pointing control test can be realized; the precision is high; the stability is good; and the engineering realization is facilitated. The device and the method can be used for a high-precision pointing control test on spacecraft such as various high-precision weather and military reconnaissance satellites and space-based offense and defense platforms.
Owner:HARBIN INST OF TECH

Device for acquiring and testing microcosmic distribution image of remaining oil in porous medium

The invention discloses a device for acquiring and testing a microcosmic distribution image of remaining oil in a porous medium (rock). The device comprises a micro injecting system, an oil-water seepage simulating system, a chromatography scanning and imaging system and an output fluid separating and metering system, wherein the micro injecting system is used for controlling test conditions (displacement flowing speed and injection multiple) of a displacement simulation test; the oil-water seepage simulating system is a sand filling tube model and is used for providing a porous medium environment for oil-water displacement; the chromatography scanning and imaging system is used for realizing acquisition of the microcosmic distribution image of the remaining oil inside a rock core in the oil-water displacement process; and the output fluid separating and metering system is used for realizing separation and metering of fluid at an outlet end of the rock core. Based on a chromatography technique and on premise that a rock core model is not damaged, the acquisition of the microcosmic distribution image of the remaining oil in the porous medium is realized. The device is strong in practicability, quantification description on the microcosmic distribution state of the remaining oil in the rock core can be conducted on the basis of the acquired image, and an effective tool for the research on further improving the oil recovery is provided.
Owner:CHINA UNIV OF PETROLEUM (EAST CHINA) +1

System and method for testing jiggle contact resistance

The invention discloses a system and a method of testing a micromotion contact resistance. The system comprises a microchecker unit, a micromotion contact resistance test unit, a data acquisition unit and a computer unit. The method has the following steps that a test micromotion contact resistance system is started for initialization, and the micromotion and control command parameter information is set in the computer unit and sent to the microchecker unit; the microchecker unit carries out micromotion according to the received micromotion and control command parameter information and adjusts the micromotion amplitude according to the self-formed micromotion feedback information; the micromotion contact resistance test unit carries out contact resistance test for a connector contact pair in micromotion, and the data acquisition unit samples the contact voltage signal and outputs the sampled signal to the computer unit for data storage, processing and graphic display. The system and the method of measuring a micromotion contact resistance are capable of regulating and controlling test parameters according to requirements, widening the test channel of the micromotion contact resistance and improving the accuracy of micromotion contact resistance test.
Owner:BEIJING UNIV OF POSTS & TELECOMM

Automatic confirmation testing method and system for embedded software

The invention discloses an automatic confirmation testing method and system for embedded software. The testing method comprises the following steps that: customizing a testing process, managing testing data, parsing the testing process, analyzing tested software, analyzing a testing result, carrying out network communication, controlling a testing interface, controlling a testing time sequence and reading tested platform software environment. The testing system comprises a testing process customization module, a testing data management module, a testing process parsing module, a tested software analyzer, a testing result analysis module, a network communication module, a testing interface control module, a testing time sequence control module and a tested platform software environment reader. By use of the method, the problems of the accurate input of a test case and the real-time collection of the output of tested software in an embedded software testing process are solved, the operation situation of the tested software is tracked under a situation that the code bloat rate of the tested software is almost not changed, and a full-automatic and visual corresponding relational graph of the test case and the operation situation of the tested software can be provided for testing personnel.
Owner:昆明奥多智能科技有限公司
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