201 results about "Computer testing" patented technology

The invention discloses an intelligent dynamic power distribution network neutral-point grounding method and a complete device. The complete device comprises a grounding transformer (1), an arc suppression loop switch (2), a resistance loop switch (3), an adjustable reactor (4), a damping resistor (5), a damping resistor short-circuit switch (6), a resistor (7), a neutral-point voltage transformer (8) and a computer testing and control system (9). The intelligent dynamic power distribution network neutral-point grounding method and the complete device is technically characterized in that a power distribution network neutral-point grounding mode is dynamically converted from an arc suppression coil grounding mode into a small-resistance grounding mode. When the device is connected to a power grid or a power grid operation mode changes, the device firstly works in the arc suppression coil grounding mode. The device measures capacitive current, adjusts inductive current and enables IL-IC to be smaller than or equal to I delta, wherein the I delta is a preset residual current control value. When a single-phase grounding fault of the power grid occurs, the device outputs the inductive current to perform compensation and arc suppression to grounding fault current. If the fault is an instantaneous fault, the fault is eliminated through the compensation and the arc suppression. If the fault is a permanent fault and the grounding fault is still not eliminated after certain time T, the arc suppression coil grounding is converted into the resistance grounding mode, and a fault line is judged and disconnected by detecting zero-sequence current of feeder lines.

The invention relates to a fretting fatigue testing method allowing a contact load to be adjusted in real time and a testing machine adopting the fretting fatigue testing method. The testing machine comprises an electronic-hydraulic servo fatigue testing machine, fretting supporting platforms, a fretting device and a computer testing and controlling system, wherein the fretting supporting platforms are fixed on supporting stand columns of the fatigue testing machine; the fretting device is horizontally arranged on the fretting supporting platform; the fatigue testing machine comprises an upper clamp and a lower clamp which are used for fixing a test piece; a contact load sensor, a motor drive signal and a displacement signal of the fretting device are connected with a computer data acquisition control system. Two fretting pad clamps are fixed in middles of two lead screw cross beams, and two opposite fretting pads are mounted at two ends of each fretting pad clamp. A fretting fatigue test with the contact load changing in real time is performed through the fretting fatigue testing machine, influences of the contact load on fretting fatigue damage are researched, meanwhile, fretting fatigue tests at different amplitudes and frequencies can be researched, and an experiment method is provided for deeper understanding of a fretting fatigue damage mechanism.

The invention discloses a testing platform of a fuel cell hydrogen system which comprises a real-time control system and a hydrogen system testing table.The real-time control system is connected with a hydrogen testing system and used for achieving testing control for the hydrogen testing system under the control of upper computer testing software.The hydrogen system testing table comprises a hydrogen backflow module, a hydrogen temperature control module, a galvanic pile analog module and a hydrogen tail exhaust module and is used for detecting the hydrogen system through the modules.The state of the hydrogen system can be simulated when the fuel cell system is operated, so that whether the performance and service life of all parts of the hydrogen system meet design requirements and requirements of the fuel cell system or not is tested.

The invention discloses a needle-like coaxial thin-film thermocouple for measuring a transient temperature, and belongs to the technical field of sensors. The needle-like coaxial thin-film thermocouple comprises a thermocouple coaxial structure comprising a needle-like measuring end, thermal electrodes and an insulating layer, wherein the measuring end comprises a thermal electrode I and a thin-film coating, and the thin-film coating is arranged on the needle-like top surface of the thermocouple coaxial structure; the thermal electrode I is covered with the insulating layer; the insulating layer and a thermal electrode II are adhered with glue; the thin-film coating and the wire-shaped thermal electrode are connected to form a thermocouple thermal connection point which is the measuring end; a lead I is connected with the thermal electrode I, and a lead II is connected with the thermal electrode II; and the measuring end converts measured temperature signals into electrical signals and transmits the electrical signals to a cold junction compensation and signal conditioning module and a computer testing system through wires.

The invention relates to a hardware-in-loop testing device and method for a vehicle-mounted battery charger control device of a new-energy automobile. The hardware-in-loop testing device comprises an upper computer testing interface, an LABCAR system, a vehicle-mounted battery charger control unit and a battery management system. The hardware-in-loop testing method comprises the steps that the upper computer testing interface carries out normal function test and abnormal test on the vehicle-mounted battery charger control device and sends test contents to the LABCAR system; the LABCAR system sends electric signals required by the vehicle-mounted battery charger control device and the battery management system according to instructions, collects electric control instructions sent by the vehicle-mounted battery charger control device and the battery management system to carry out closed-loop control and feeds back simulation running results to the upper computer testing interface in real time. The hardware-in-loop testing device and method have the advantages of being capable of carrying out static testing and dynamic testing of normal AC charging functions on the vehicle-mounted battery charger control device and testing whether the vehicle-mounted battery charger control device can identify occurrences of faults and carry out correct fault processing.

The invention relates to the technical field of PLC detection, and provides a QT-based cross-platform PLC board level tool testing system, which comprises QT-based cross-platform board level tool testing software, a power supply module, a to-be-tested PLC module and an auxiliary testing module, wherein a PC mounted by the QT-based cross-platform board level tool testing software is connected with the to-be-tested module via a serial port line and communities with a lower computer testing program; the power supply module is connected with the to-be-tested module for providing power for the tool testing; and the to-be-tested module comprises a CPU module, a coupler module, a digital input module, a digital output module, an analog input module, an analog output module, and the to-be-tested module is connected with the auxiliary testing module via the serial port line, a cable and an analog line. When the tool is used for testing different single board modules, the auxiliary testing module is used for providing a unified testing environment, the interface connectivity or function testing precision is high, automatic testing is realized, the testing result is accurate, the workload is reduced, and the working efficiency is improved.

The invention discloses a web automatic testing framework construction method based on selenium, and belongs to the technical field of computer testing. The situation of rapid change of web application demands is fully considered, and a framework suitable for web automatic testing is constructed through uniform management of data, page-based longitudinal management of a UI (User Interface) object and operation script graded management in combination with the properties of supporting various operating system platforms, browser crossing and the like of a selenium tool on an execution layer. Through the constructed web automatic testing, the success rate of automatic testing is increased.

The disclosed computer testing method comprises: starting up the testing item by the target computer, building process linkage between target and control computers to permit the target computer send state information and receive command to execute the testing item. This invention can auto complete distribution, interruption and modification to the testing item, benefit to remote real-time monitor target computer, and auto generates the item and clears result.

The invention relates to a strapdown inertial navigation computer testing system and a realization method, and belongs to the field of navigation equipment testing. A semi-physical testing platform is constructed in a manner of simulating a hardware interface of an inertial sensor, the theoretical output of the inertial sensor is reversely derived by track simulation, and real device output is simulated in a manner of adding an error to the theoretical output as a data source of an analogue interface. The data format and the data accuracy of the output of the simulated inertial sensor are regulated by flexible parameter setting means, and differences between the position, the speed and the attitude, which are calculated by navigation, and a set track are compared and analyzed by virtue of a mathematical statistical method for a tester to conveniently test the performance of a navigation computer and realize evaluation and verification of the performance of software and hardware of a navigation computer system. According to the system and the method, hardware interface and software algorithm tests can be made for different types of navigation computers and different dynamic requirements, so that the testing cost is reduced, and the testing universality and the reproducibility are improved.

The invention discloses a device for evaluating sound insulation and absorption performance of an automobile body part. The device comprises a front receiver, a computer testing system, a first microphone, a second microphone, and a box body which is enclosed by four panels, a volume sound source and a movable cover plate; a hole is formed in the middle of the movable cover plate, and the automobile body part to be detected is arranged in the hole; and the first microphone is arranged on a panel, and the second microphone is arranged outside the box body. The movable cover plate can be detached from the box body or assembled on the box body; after the movable cover plate is detached, sound produced by the volume sound source can be heard outside the box body; and after the movable cover plate is assembled, the sound transmitted after the automobile body part on the movable cover plate absorbs the sound is heard, namely the sound insulation and absorption performance of the automobile body part is felt subjectively. Moreover, after the movable cover plate is assembled, the first microphone receives a sound signal in the box body, and the second microphone receives a sound signal outside the box body, namely the sound insulation and absorption performance of the automobile body part can be calculated, so the sound insulation and absorption performance of the automobile body part can be tested objectively.

The invention discloses a visual function optimization training control system and a control method thereof. The system comprises a training device, a microcomputer, a range finding device which tests user vision distances, and an image pickup device which acquires ocular surface or iris sizes and patterns of users. The microcomputer is connected with the training device in a both-way communication manner. The output ends of the training device are connected with the input end of the range finding device and the input end of the image pickup device. The output end of the range finding device and the output end of the image pickup device are connected with the input end of the microcomputer. The microcomputer stores data transmitted by the training device, the range finding device, and the image pickup device. The visual function optimization training control system preferably solves defects in the prior art that operationality is not good, and professional guidance is needed. The system can record training data by the microcomputer in real time, so that even though a user uses fragmented time to train, the system can record all the process, and through analysis, gives an adjustment scheme, thereby greatly improving practicality and effectiveness of vision optimization training.

The invention belongs to the technical field of automobile tests and discloses a bench testing system for a combined automatic automobile speed changer to mainly test the performance of the combined automatic automobile speed changer, especially test the speed ratio control effect of stepless speed change, the step and stepless switching control effect and the dynamic property, the economical efficiency and the transmission efficiency of the combined automatic automobile speed changer. The purpose of testing the main performance of the combined automatic automobile speed changer can be achieved. The bench testing system is mainly composed of a control computer, a test bench and a roller testing mechanism, and is characterized in that sensors on the test bench and the roller testing mechanism measure a revolving speed signal, an oil consumption signal, a torque signal and the like, and the control computer carries out calculation according to all sensor signals to obtain a rate index of the economical efficiency, the dynamic property, the speed ratio control and the like of the combined automatic speed changer. The bench testing system is specially used for testing the economical efficiency, the dynamic property, the transmission efficiency, the speed ratio control effect and the switching control effect of the combined automatic automobile speed changer.

This invention relates to an over-bench computer test system and its method, which comprises leg tool database, requirement monitoring module, requirement pool and logic control module. The method comprises the following steps: first storing the Windows/Linux starting program by means of test tool into the database; testing the connection requirements from different benches; adding the connection into requirement pool; then taking out the requirements from the pool and testing according to the requirement data.

The invention discloses testing method and device and belongs to the field of computer testing. The testing method includes: reading a case description file; acquiring building parameters which belong to a test case described by the case description file and which include information of a first object and information of a second object; loading the first object and the second object according to the building parameters to form the test case; and calling the test case to execute a test process and acquiring test results. According to the method, the first type of object and the second type of object are separated, so that importance of HTML (hypertext markup language) documents and JS (javascript) files is improved. By the aid of the case description file, the new test case can be built conveniently and dependency between the test cases is overcome.

The system includes base of testing items, management module, configuration module as well as error and log management module. The method includes loading module of testing items and obtainning relevant information; creating data access interface for testing item, and binding the data access interface on the configuration interface; collecting and saving configuration data from configuration interface; calling configuration data to the data access interface, and transferring data access interface to testing item; based on configuration data, testing procedure is carried out by testing item. When extending testing region is needed, one thing needed to do is put new added testing item to assigned position without need of modifying main controlling program.

The invention relates to an automatic multi-module detection system of an ADSL/VDSL separator, which can realize the fast detection of several ADSL/VDSL separator modules and several parameters in the same detection batch, and is characterized in that the whole system is composed of an upper computer testing management software system (M1), a lower computer testing and controlling system (M2) and a product machinery testing platform (M3), wherein the upper computer management software system (M1) is connected with the lower computer testing and controlling system (M2) through a computer interface, the lower computer testing and controlling system (M2) is connected with the product machinery testing platform (M3), and several ADSL/VDSL separator modules which will be tested are installed on the product machinery testing platform (M3) in batch. The upper computer testing management software system (M1) is an operation software system which is developed with high-level language, which manages and controls the lower computer testing and controlling system (M2), collects all testing data which are generated through the lower computer testing the ADSL/VDSL modules, and analyzes and processes the data which are collected. The invention has overall testing parameters and convenient use, and largely increases the testing efficiency.

The invention provides a method for quick firmware update and booting to enter an operating system, and relates to the field of large-scale computer testing. The method comprises the following steps of: 1) determining that a first startup item of a machine is boot from build-in shell; 2) putting a firmware file and a tool into a U disk or a hard disk; 3) entering a file system storing the firmware file and the tool after entering UEFI shell by the machine, and automatically running a firmware update command; 4) after the firmware update is completed, if firmware does not need to be restarted and activated, automatically calling an operating system boot file by a program, and starting the operating system to perform diagnostic testing; and 5) if the firmware needs to be restarted and activated after being updated, restarting the machine to automatically enter uefi shell, directly calling the operating system boot file by the program, and booting the operating system to be started for performing diagnostic testing. According to the method, the operating system does not need to be loaded, so that the update time is shortened; and the requirements of the firmware update tool on the operating system do not need to be considered, so that the update process is simplified.

The invention relates to an automatic test system and device for a passive entry passive start (PEPS) bus signal, characterized in the following aspects: two sets of antennas are connected to a PEPS controller through relays respectively. Through the switching manner of the relays, one set of the antennas is chosen to stimulate the position information of an intelligent key relative to an entire vehicle. The intelligent key and a start switch triggering module are driven in such as a way that an electric air pump is connected through a flexible pipe to a push column. The middle part of the flexible pipe is connected with a solenoid valve, and the solenoid valve is connected with a host computer through an I/O control board clamp. An air pressure stimulation module is capable of stimulating the real work conditions of a tire pressure sensor. The host computer testing software chooses different sets of antennas and automatically drives an air pump to push the key, therefore achieving the stimulation of various working conditions of a complete set of system to be tested and achieving the goal of detecting whether the bus signal outputted from the system to be tested is consistent with the real work conditions or not. The system and device can be used to test at the early stage of project development so that problems can be found as early as possible and that developmental costs are reduced.

The invention discloses an automatic test case generation method based on a double-chaos whale optimization algorithm, which belongs to the field of computer testing, and specifically comprises the following steps of: obtaining a tested program, obtaining the number of input parameters, analyzing the tested program, converting the tested program into a control flow diagram, and performing programinstrumentation; calculating a test path set of a tested program according to the control flow diagram, and using a chaotic sequence to replace a random algorithm in a whale algorithm to initialize apopulation; obtaining a fitness function according to a layer approach method and a branch distance method; for each test path, optimizing the population to obtain an optimal value, performing chaoticdisturbance operation to obtain a new initialized population, performing whale optimization algorithm again, and performing repeated iteration to obtain a group of test cases; and repeating the stepsto obtain a complete test case set. According to the method, the whale optimization algorithm is applied to test case generation, and the chaotic strategy is used twice for the algorithm, so that thetest case generation efficiency is improved.

The invention discloses a distributed testing device and method, a storage medium and electronic equipment, and relates to the technical field of computer testing. The distributed test device comprises a configuration module used for loading global configuration including execution node information and local configuration including test cases; a mapping scheduling module used for configuring a target storage node according to a predetermined mapping rule and controlling an execution node corresponding to the execution node information to execute the test case; And a data synchronization modulefor synchronizing the test logs generated when the test cases are executed to the target storage node. According to the invention, flexible configuration of the execution node and the storage node can be realized.

The invention discloses a method and a device for predicting flow data and computer equipment, and relates to the technical field of computer testing, the method comprises: firstly, acquiring historical delivery data and historical traffic data of each historical unit time; based on historical delivery data, calculating at least one input parameter, wherein the input parameters are used for representing characteristics of historical delivery data; based on historical traffic data, calculating at least one reference output parameter, wherein the reference output parameters are used for representing characteristics of the historical traffic data; based on the calculated input parameter and the reference output parameter, training the flow prediction model to obtain a trained flow predictionmodel, and then inputting the acquired planned delivery data in unit time into the pre-trained flow prediction model to obtain predicted traffic data corresponding to the planned delivery data so as to improve the prediction accuracy of the user traffic data.

A computer cloning system and process comprising a cloning machine which modifies a survived or reproduced operating system (“OS”) devices to adapt to new replacement hardware. The cloning processes are performed within the cloning machine, which is a separate machine from both the damaged and replacement machines. The modified OS device is then adapted to the replacement computer with different hardware. The cloning method of the present invention is a network independent solution. This invention may also be used for computer system hardware and/or software upgrades, computer testing, new computer installation, and system migration.

The invention provides a downhole tool ground milling test system and a downhole tool milling method. The downhole tool ground milling test system comprises a power driving system, a milling load adjusting system and a computer testing and control system. A downhole tool and a casing pipe are both arranged horizontally. The power driving system comprises a rotation driving device and a milling shoe. A rotary shaft of the milling shoe is horizontally arranged. The milling load adjusting system comprises a horizontal driving device. The downhole tool and the casing pipe are located between the milling shoe and the horizontal driving device. The computer testing and control system is connected with the rotation driving device and the horizontal driving device to measure experiment parameters of the rotation driving device and the horizontal driving device. The downhole tool milling method includes the following steps that a ground milling test is performed on the downhole tool first, and milling of the downhole tool is simulated on the ground. The downhole tool ground milling test system and the downhole tool milling method provide reliable data guidance for actual construction operation.

The invention provides a testing device and method of a wireless communication terminal. The testing device comprises: a computer testing model and a universal serial bus (USB) cable, wherein the computer testing model is used for fixing a wireless communication terminal to be tested; one end of the USB cable is connected to the wireless communication terminal to be tested and passes through the computer testing model, and the other end of the USB cable is connected to a working computer. In the invention, the performance indexes of the wireless communication terminal measured by the device and method are not influenced by the working computer; the performance indexes of the same wireless communication terminal are basically unchanged when the working computer is changed, so that the comparability of performances between wireless communication terminal products is realized; the repeatability is relatively good, and the realization is relatively simple.