12results about How to "Efficient testing" patented technology

This utility model relates to the technical field of pile foundation skin friction testing, and discloses a device for rapidly testing the negative skin friction of pile foundations in high-fill mountainous areas. The device includes backfill soil, beneath which lies a strongly weathered rock layer, and below that, a moderately weathered rock layer. A data acquisition system is installed on the left side of the top surface of the backfill soil, and a loading oil pump is installed on the right side. Utilizing the end resistance from the rock foundation load test to provide the reaction force, combined with data from pile stress sensors, the distribution characteristics of negative skin friction on the pile side in high-fill areas can be rapidly and quantitatively analyzed, providing a measured basis for pile foundation bearing capacity assessment and engineering design. This method uses the upward displacement of the pile under the action of a load cell to replace the settlement of the foundation soil, thereby efficiently testing the negative skin friction, significantly reducing testing costs and saving testing time.

The application discloses an optical receiving end bandwidth test method, system and related equipment, which first performs coarse scanning by a first sweep frequency step and divides the amplitude-frequency response area, then determines a smaller second sweep frequency step according to the transition core area attenuation slope, adopts differential sampling in different areas, effectively reduces frequency point redundancy, shortens test time consumption, accurately captures the amplitude-frequency rapid attenuation characteristics, balances test efficiency and accuracy, and adapts to production line batch test requirements. By combining real-time signal-to-noise ratio adjustment sampling time and Fourier transform average number, the influence of various interference factors can be inhibited; by peak detection, roll-off characteristic determination, matching of a suitable low-pass model for global fitting, random sampling errors can be eliminated, the standard amplitude-frequency response curve can be fitted to the actual characteristics, and the stability and repeatability of bandwidth determination are improved. The method realizes accurate, efficient and stable test of the optical receiving end bandwidth through the organic combination of adaptive non-uniform sweep frequency and model fitting, and improves the test performance.

This invention discloses a screw fracture prevention method based on vibration testing of wall-mounted products, comprising: selecting screws that meet predetermined standards; using an accelerometer to monitor the vibration value at the installation point of the wall-mounted equipment in real time; adjusting the input control of the test bench; conducting a pre-test before the formal test, and then tightening the screws a second time after the pre-test; during the formal test, monitoring the root mean square value of acceleration or the peak value of the time-domain signal at the equipment installation point in real time, judging the screw fracture risk based on the root mean square value of acceleration or the peak value of the time-domain signal, and terminating the test when a fracture risk is detected. By adjusting the input control of the test bench, the vibration input level is controlled to prevent overtesting, reducing the risk of screw fracture due to vibration overload from the source. Pre-testing and secondary tightening eliminate preload loss, reduce the risk of stress concentration, and improve the uniformity and stability of preload. This achieves early warning of fracture risk, gaining time for downtime and loss mitigation.

The utility model discloses a kind of circuit board testing equipment with four-line clamp quick clamping device, it is related to circuit board testing equipment technical field, including base, base upper portion is fixedly connected with testing equipment main body, and base upper portion is fixedly connected with clamping mechanism and support mechanism, support mechanism is located below clamping mechanism.The utility model, by handle, connecting shaft, the clamping mechanism of one spring etc., realize the quick clamping and release of circuit board, and the fixed circuit board pin foot of pressing end can be made by pulling handle, reverse pulling cooperation one spring can quickly unfasten clamping, the fixed end of support mechanism and pressing end accurate alignment, limit plate ensures that pressing frame moves stably, guarantee positioning accuracy, one spring provides elastic buffer, guarantee the clamping force of pressing end to different thickness circuit board is even, avoid bad contact and circuit board deformation.

The utility model relates to a multifunctional EPD visual acuity detector, including EPD display screen, aluminium frame and back cover, EPD display screen is connected in the front end of aluminium frame, the back cover is fixed in the back of aluminium frame, and the space inside surrounded between back cover and aluminium frame is equipped with control mainboard, EPD display screen is electrically connected with control mainboard, and EPD display screen can switch and show different visual acuity detection image, the upper portion of aluminium frame is equipped with respectively with the camera, microphone, speaker and infrared sensor of electric connection of control mainboard, network module is connected on control mainboard, and this network module is connected with AI cloud end server communication, the utility model discloses through the integration camera, microphone, speaker and infrared sensor, can realize the interaction with the user, realizes the AI intelligent vision detection, replaced the traditional light box test vision's mode, makes the test more efficient.

The application discloses a kind of server component test scheme generation method, device and system, electronic equipment and computer storage medium, wherein the method comprises: according to the project component list of server to be tested project, determine whether there is matching reuse component in the component basis data of server project with the component in the to be tested project;If yes, then according to the reuse component list generated by the project component list and the component basis data, select the to be tested component of the current project stage in the to be tested project;According to the reuse component test planning generated by the to be tested component, search the component reuse information of the to be tested component in the server project;According to the component reuse information, generate the reuse component test scheme of the server to be tested project, to speed up the design progress of test.

The application provides a Beidou navigation receiver automatic test control method and device, and relates to the technical field of navigation test. Through automatic generation of a test template, control signal generation and distribution, automatic data acquisition, performance index calculation and report generation, efficient and reliable testing of the Beidou navigation receiver is realized, and the test efficiency is significantly improved, manual operation errors are reduced, test reliability and standardization are enhanced.

This utility model discloses a high and low temperature pulse vibration comprehensive test chamber, including a frame, a moving track, and a vibration mechanism. The frame is slidably connected to the moving track, and a test chamber and a temperature control mechanism are set inside the frame. The vibration mechanism includes a base, a lifting unit, and a vibration unit. The lifting unit is fixedly set inside the base, and the vibration unit is fixedly set at the output end of the lifting unit. The high and low temperature pulse vibration comprehensive test chamber provided by this utility model allows the frame to move freely on the moving track. By moving the frame, it is easy to place the cold plate to be tested inside the frame. After the cold plate is placed inside the test chamber of the frame, the frame is moved again above the vibration mechanism, and the vibration mechanism simulates the vibration of the cold plate. Simultaneously, the temperature inside the test chamber is controlled by the temperature control mechanism. Through the vibration mechanism and the temperature control mechanism, the actual operating environment of the cold plate can be simulated, enabling efficient testing and improving testing efficiency.

The application discloses a kind of application program interface test method, its device and electronic equipment. Among them, the method includes: receiving configuration file and the test data corresponding to target request party, wherein the test data is used to simulate the request data of target request party after encryption processing is sent to target application program interface, configuration file includes the multiple application program numbers corresponding to multiple request parties one by one, and the multiple key information corresponding to multiple application program numbers one by one;From the target key information corresponding to the application program number of target request party in configuration file;By target key information, the target data is obtained by decrypting test data;Obtain the target test condition corresponding to target application program interface;According to target test condition, the state of target application program interface is tested using target data. The application solves the problem of low test efficiency of application program interface in the prior art.

This invention discloses a method and system for testing the braking energy recovery performance of new energy vehicles, relating to the field of light vehicle performance testing technology. The method includes: constructing a test platform comprising an environmental chamber and a four-wheel drive drum system; fixing the test vehicle onto the four-wheel drive drum of the test platform and connecting it to a power analyzer; configuring environmental chamber parameters according to preset regulatory conditions and loading a drum resistance curve into the four-wheel drive drum system; conducting braking energy recovery tests under different brake pedal openings; and simultaneously collecting multi-source voltage and current data from the test vehicle's power battery, 12V small battery, and the drum during the test; calculating the total energy consumption and braking energy recovery under different operating conditions based on the multi-source voltage and current data, calculating the recovery efficiency, and compiling a braking energy recovery strategy MAP. This invention does not rely on CAN bus decoding and can achieve accurate and efficient testing of braking energy recovery performance.

The application discloses a folding screen hinge rotating shaft module automatic electrical performance comprehensive test platform, relates to the folding screen hinge rotating shaft module test technical field, and comprises a rigid rack, a test shaft is uniformly and movably connected in a hollow groove of the rigid rack, and a folding test bench one is fixedly arranged on the test shaft at the top of the groove. The application organically integrates the programmable folding fatigue test and the high-precision axial virtual position test, can monitor the micro changes of the internal gap of the hinge online and accurately while applying the continuous fatigue stress, supports the flexible switching of the symmetric and single-side driving modes, and thus provides an efficient and accurate solution for evaluating the comprehensive performance and long-term reliability of the folding screen hinge rotating shaft module.

The application discloses a screw motor torque and rotating speed testing system, which comprises a screw motor torque and rotating speed testing device, a fracturing pump pry, a water tank and a PLC controller. The screw motor torque and rotating speed testing device comprises a testing unit, a power unit and a cooling system. The testing unit comprises a main shaft and a disc brake. The screw motor torque and rotating speed testing device further comprises a tension and pressure sensor and a rotating speed sensor. The tension and pressure sensor is used for monitoring the torque of the disc brake, and the rotating speed sensor is used for monitoring the rotating speed of the main shaft. The PLC controller is electrically connected with the rotating speed sensor, the tension and pressure sensor, the fracturing pump pry, the disc brake, the power unit and the cooling system respectively. The application can realize constant (dynamic) torque testing, rotating speed testing, torque setting, remote control and other functions, effectively solves the existing problems and improves the reliability and stability of the oil connection construction.