45 results about "Maintenance testing" patented technology

The invention relates to the field of data processing, in particular to a method and system for analyzing the health degree of main parts of a switch cabinet, and the method comprises the steps: analyzing the degradation influence of various events in the switch cabinet on parts through extracting historical data or other monitoring data and maintenance test data of the switch cabinet which can be used as a reference; and thus, a deterioration relation model of main parts in the switch cabinet is constructed. Monitoring data in the current switch cabinet are collected, and the degradation degree of main parts in the switch cabinet is evaluated by combining the degradation relation model. According to the method, the evaluation model is constructed based on the sample data, and the deterioration degree evaluation is performed on the main parts in the switch cabinet before the deterioration phenomenon occurs, so that the deterioration degree prediction can be performed before the deterioration phenomenon occurs on the parts, and guidance can be provided for replacement and maintenance of the parts so as to save maintenance resources.

A method for maintaining a test table (2) using a maintenance unit (4) is described, wherein the test table (2) has a surface (6) with at least one test module (8) for connecting and testing a cable set, wherein the maintenance unit (4) has a sensor unit (10) positioned above the surface (6), wherein the maintenance unit (4) uses the sensor unit (10) to detect the test module (8) and determine its current state, wherein the maintenance unit (10) determines an ID of the test module (8), wherein the maintenance unit (4) uses the ID to retrieve a target state for the test module (8) from a database (14), wherein the maintenance unit (4) compares the current state with the target state and automatically performs a maintenance action for the test module (8) based on the comparison. A corresponding maintenance unit (4) is further described.

The invention relates to the technical field of aviation maintenance testing, in particular to a method for qualitatively confirming the eccentricity of a shipboard aircraft down lock, which is characterized in that a mechanical pointer is arranged in a support rod positioning hole, a position dial plate is arranged in a connecting rod positioning hole, and when a support rod and a connecting rod displace, the mechanical pointer points to the position change of the position dial plate, so that the eccentricity of the lower lock of the shipboard aircraft is confirmed. The position of the eccentric distance can be confirmed through the pointing position, real-time detection and adjustment of the eccentric distance are met, the specific value of the eccentric distance does not need to be measured, and the method is more flexible and efficient compared with a traditional measurement mode.

This invention belongs to the field of power communication technology, specifically disclosing a portable power communication operation and maintenance device, including a housing and an operation and maintenance testing component. The housing has a window on its front side, a side panel installed at the window, and a window opener connected to the side panel. The side panel is fixed to the housing by a latch. The bottom of the housing has an upward-facing groove, within which two L-shaped flip frames are symmetrically installed. A wheel is installed at one right-angled end of each flip frame, and a support leg is installed at the other right-angled end. A synchronous flipping drive component connected to the two flip frames is located within the groove. The operation and maintenance testing component is installed inside the housing. This device can perform efficient operation and maintenance testing of power communication facilities, effectively meeting the practical needs of efficient, convenient, and flexible power communication operation and maintenance work, and effectively solving the technical problems of inconvenient installation and debugging, low operation and maintenance efficiency, heavy operational burden, and reduced portability of existing technologies.

The invention discloses a diesel engine maintenance test device with a working condition simulation function, and relates to the technical field of dynamometer, the test device comprises a test bench and a coupler, the test bench is provided with a tested engine, the output end of the engine is in transmission connection with the coupler, and one side of the coupler is provided with a hydraulic dynamometer; the hydraulic dynamometer comprises a base, a water inlet part, a water outlet part, a machine body part and a dynamometer part, the base is fixedly connected with the test bed, the water inlet part and the water outlet part are connected with the machine body part, and the dynamometer part is connected with the base and used for detecting the power of the engine; the test bench is fixed on the ground to provide stable support for the test device, the tested engine is installed on the test bench and is a diesel engine, and the diesel engine needs to be tested and accepted according to acceptance specifications after being disassembled and maintained, so that the maintained diesel engine is qualified, and the test efficiency is improved. Generally, the output power of the diesel engine is detected through a hydraulic dynamometer.

The invention provides a test platform for a multistage pump. The test platform comprises an experimental platform, a power support outlet assembly, a turnover mechanism and a movable mounting platform, the experiment platform has a two-layer structure, the upper layer is an installation and maintenance area, and the lower layer is a box body with a test medium; the power support outlet group is mounted on the upper layer of the experimental platform and is connected with a multi-stage pump test section; the turnover mechanism is located between the experiment platform and the power supporting outlet assembly and used for driving the power supporting outlet assembly to drive the multi-stage pump test section to turn over between a vertical test position in the box body on the lower layer of the experiment platform and a horizontal maintenance position of the installation maintenance area; the movable installation platform is arranged on the experiment platform and used for moving to the position below the multistage pump test section and providing support when the multistage pump test section is located at the horizontal maintenance position. According to the invention, the multi-stage pump test section can be conveniently and quickly mounted, dismounted and overhauled and tested.

The utility model belongs to the technical field of aviation electromechanics, and relates to detection and maintenance equipment of a refueling control device. The equipment adopts a PXI bus architecture and mainly comprises a control case, a zero slot controller, a power supply system, a DA output board card, an AD acquisition board card, a power load, a DIO board card, an RS422 communication board card, an ARINC429 communication board card, a CAN communication board card and an interface signal adaptation unit. The equipment is mainly used for testing and maintaining the refueling control device. In the testing process, the refueling control device is connected with the equipment through the interface signal adapter unit, the equipment power supply system controls connection of a power supply, the zero slot controller controls the DA output board card, the AD acquisition board card, the power load and the DIO board card to carry out signal interaction with the refueling control device, and meanwhile the equipment and the refueling control device carry out data interaction through RS422, ARINC429 and CAN communication buses. The interface function and performance verification of the refueling control device is realized, and meanwhile, ground data maintenance can be performed.

The invention relates to a distributed power unmanned aerial vehicle control system and control method, belongs to the technical field of unmanned aerial vehicle flight control, and solves the problems of loud noise, limited computing power, limited peripheral interfaces and weak anti-interference ability in the prior art, the distributed power unmanned aerial vehicle control system comprises: a control module comprising a PS end and a PL end; the PL end comprises a data synthesis and instruction analysis module, an inertial navigation and GPS data acquisition module, a motor feedback signal acquisition module and a corresponding interface module, and has data acquisition, data communication and peripheral interface functions; the PS end comprises a dual-core structure and comprises a flight control algorithm module with a flight control function and a motor control algorithm module with an FOC vector control algorithm function; the maintenance test module, the remote control and telemetering module, the load system module, the combined inertial navigation module, the GPS module and the power system communicate with the control module.

The invention discloses a cable network maintenance test method, system and equipment, and belongs to the technical field of power maintenance equipment, and the method comprises the steps: testing a to-be-tested cable through a cable network tester, obtaining the test data of the to-be-tested cable, judging whether a breakpoint fault occurs in the to-be-tested cable or not according to the test data of the to-be-tested cable, and if yes, determining whether the breakpoint fault occurs in the to-be-tested cable. And if the breakpoint fault exists, positioning the breakpoint fault, if the breakpoint fault does not exist, carrying out calculation processing on the test data, judging whether the to-be-tested cable has a maintenance requirement or not according to a calculation result, and if the to-be-tested cable has the maintenance requirement, maintaining the to-be-tested cable, so that the labor cost and the maintenance time can be saved, and the maintenance accuracy and efficiency can be improved.

1. The name of the design product: radar test platform comprehensive measuring equipment. 2. The use of the design product: used for maintenance test of radar products, improving maintenance efficiency. 3. The design points of the design product: the combination of shape and pattern. 4. The picture or photo that best indicates the design points: perspective view 1.

The present invention relates to a static pressure test adjustment method for a bogie with a swivel arm positioning structure, comprising the following steps: measuring the height of each spring seat before the bogie with the swivel arm positioning structure is completed; then, based on the height of each spring seat, adjusting pads are added to control the height difference at the four corners of the bogie with the swivel arm positioning structure within a preset range; the swivel arm node is fixedly connected under a static pressure test load condition AW0; and when performing air spring air tightness pressure maintenance testing, the displacement control system of the static pressure test bench weighing unit is set to fixed, and the hydraulic cylinder applying the load is set to fixed height control. Application of the present invention to the static pressure test adjustment method for a bogie with a swivel arm positioning structure ensures uniform compression of the tie springs at the four corners and uniform distribution of wheel load during static pressure test loading.

The present application relates to the technical field of valve positioner detection, and specifically discloses a detection method for a piezoelectric valve of a valve positioner, which comprises the following steps: step S1: connecting the positioner to an external valve for maintenance testing, ventilating the air inlet of the positioner, and judging whether the small hole of the top layer of the piezoelectric module is venting outward; if yes, the isolation diaphragm between the pilot layer and the amplification layer is damaged; if not, the following step is continued; step S2: discharging the air inlet piezoelectric valve and the exhaust piezoelectric valve with a resistor, so that the residual voltage is released; the present application can detect the piezoelectric valve of the valve positioner, and can realize deep repair and repeated use of typical faults of the valve positioner, thereby greatly reducing the operation and maintenance cost of enterprises in the aspect of instruments and saving expenses.

The invention relates to the technical field of software testing, in particular to a test case recommendation method, system and equipment. The method comprises the following steps: comparing a to-be-tested version code of a target application with a previous version code to obtain a difference code; inputting the difference code into a trained AI model to indicate the AI model to output an optimal test case suitable for the difference code according to the difference code and a pre-constructed knowledge base; wherein the knowledge base is obtained in the following mode: obtaining coverage rate data obtained based on the target test case, taking the target test case as a historical test case, associating the target test case with the corresponding coverage rate data, and storing the target test case in the knowledge base. Therefore, the problems that in the prior art, the test case maintenance cost is high, and the designed test case code coverage rate is low can be effectively solved.

The invention belongs to the technical field of avionics, and provides a three-axis acceleration and impact detection sensor maintenance test method, which comprises the following steps: establishing a communication link between a tested sensor and an upper computer; packaging the test data into a command frame according to a predefined frame format in the upper computer, and sending the command frame to the tested sensor by the upper computer; and analyzing the command frame in the tested sensor to obtain an operation instruction, sending the operation instruction to a corresponding operation module, enabling the operation module to operate the tested sensor, packaging an operation result into a response frame according to the predefined frame format after the operation is completed, and sending the response frame to an upper computer. The method provided by the invention is simple and convenient, all daily function maintenance of the sensor can be realized only through an external RS-422 bus signal, and the function of the sensor can be detected.

This invention discloses a wind turbine generator inspection device, belonging to the field of wind power equipment operation and maintenance testing technology, including a frame; the frame is equipped with a mounted moving mechanism and a dual-axis moving mechanism. The moving end of the dual-axis moving mechanism is fixedly mounted with a mounting frame. The mounting frame is equipped with a purging mechanism, a groove cleaning mechanism, a non-destructive testing mechanism, and a uniform lubrication mechanism in sequence along the horizontal direction. In this way, the frame can be quickly deployed on the support frame through the mounted moving mechanism, so that the frame can move around the blades along the support frame, realizing automatic purging, scraping cleaning, non-destructive testing, and uniform lubrication of the sealing groove in sequence, effectively reducing the difficulty of sealing strip replacement, increasing the efficiency of sealing strip replacement, and facilitating the subsequent assembly work of the sealing strip by the operators.

The invention discloses a method and a system for testing the data transmission service quality of a railway DRTD system, which are corresponding schemes, and in the scheme, the effectiveness and the timeliness of EMBC data transmission of main network element nodes in the railway DRTD system can be tested; meanwhile, the method is provided for dispatching communication data service testing and verification of grouped data key bearing of the railway DRTD system, can be widely applied to railway DRTD system performance evaluation, daily debugging, system joint debugging and testing and maintenance inspection, meets the actual application requirements and scenes of the railway DRTD system, does not affect the normal service process of the railway DRTD system, is high in pertinence, and is suitable for popularization and application. A new method and technical means can be provided for operation and maintenance testing of the railway DRTD system, and driving safety is guaranteed.

The present invention discloses a high- and low-speed integrated blade predictive maintenance test bed and an operation method thereof. The test bed includes a test bench, an industrial computer and a display; the industrial computer is respectively connected to the test bench and the display signal; the test bench includes a bottom plate, a bearing seat, a blade module, a gear box, a drive motor and a data collector; the blade module, the gear box and the drive motor are sequentially arranged on the bearing seat from left to right via the main shaft; the blade module is detachable and rotatably connected to the gear box, and the blade module includes two types of high-speed blades and low-speed blades. The present invention provides a blade predictive maintenance test bed that integrates high-speed blades with low-speed blades, which can realize the replacement of high- and low-speed blades and collect operating data; the present invention does not need to build two high and low test benches separately; collects operating data, and realizes prediction through the established fault diagnosis model and life prediction model, and performs maintenance according to the prediction results.

The invention discloses a quick positioning device and method for a stress concentration area in a static test of a wind power blade. According to the device, strain data of key parts of a blade are collected in real time through a multi-type sensor array (strain gauges, optical fiber sensors and piezoelectric films), and a stress concentration point is accurately positioned in combination with an intelligent algorithm (finite element analysis, machine learning and stress gradient calculation). The method comprises the steps of graded loading testing, data closed-loop feedback and three-dimensional stress nephogram generation, the positioning precision error is smaller than or equal to 2%, and the time is shortened to 1 / 10 of that of a traditional method. The technology is suitable for blade design verification, operation and maintenance detection and material fatigue analysis, the detection efficiency is greatly improved, and the labor cost is reduced. The sensor array is composed of a surface strain gauge (the grid spacing is smaller than or equal to 5 mm), an embedded optical fiber sensor (the sensitivity is larger than or equal to 1 mu epsilon) and a piezoelectric film sensor (the response frequency is larger than or equal to 1 kHz) and covers the front edge, the rear edge, the main beam, the root and other key parts of the blade. The intelligent algorithm module comprises a finite element model library (presetting different types of blade structures), a machine learning model (TensorFlow / PyTorch framework training) and a stress gradient calculation unit, and material attribute errors are corrected through historical data; the testing method supports bending, torsion and combined load working conditions, the positioning time is only 0.5-1 hour, and the testing method is compatible with 1.5-10MW blade models.

The utility model relates to the technical field of radar maintenance testing, in particular to a radar maintenance testing platform servo load structure which comprises a base, a second gear is installed and connected on the left portion of the upper end of the base, a first gear is installed and connected on the right portion of the upper end of the base, and the second gear and the first gear are connected in a meshed mode. The upper end of the base is fixedly connected with a protection device, the protection device is located outside the second gear and the first gear, the protection device does not make contact with the second gear and the first gear, and the upper end of the second gear is fixedly connected with a clamping device. According to the radar maintenance test platform servo load structure, the clamping device is arranged, the radar is placed on the maintenance platform, the second motor is started to work, the two-way threaded rod is driven by the second motor to rotate, the two clamping plates in threaded connection with the two-way threaded rod are close to each other and clamp the radar together, and displacement of the radar during maintenance is avoided.

The application provides a waveform extraction-based remote simulation demonstration system and method, and belongs to the field of remote operation and maintenance testing; solves the problem that the transmission efficiency of the recording wave file is low and the real-time performance is poor when a new power system is tested on site, so that distributed remote simulation testing cannot be realized; the system comprises a real-time digital simulation system, a recording wave device, a control host, a wireless communication network and multiple demonstration devices, wherein the real-time digital simulation system is used for constructing a fault model of a field primary system and converting the fault model into a fault simulation signal output; the recording wave device stores the fault simulation signal output as a recording wave file, extracts fault information based on time domain analysis, extracts electrical quantity characteristic signals of the recording wave file based on multi-algorithm fusion, and forms executable text of a state sequence, so that a numerical simulation test signal is obtained; the control host is used for realizing transmission of the simulation test signal through the wireless communication network according to a mapping relationship between the recording wave file and the demonstration devices; and the application is applied to remote simulation.

The utility model discloses a portable detection box for fire protection and maintenance, which relates to the technical field of fire protection and maintenance and comprises a box body, a support is fixedly arranged on one side of the box body, a rotating rod is rotatably arranged at the bottom of the support, sliding frames are fixedly arranged at the two ends of the rotating rod, and pulling frames are slidably arranged in the two sliding frames. A box body is fixedly arranged at the bottom of the pulling frame, two inclined blocks are arranged in the box body in a sliding mode, inclined plates are arranged at the tops of the inclined blocks in a sliding mode, inserting rods are fixedly arranged on the two sides of the inclined blocks, a plurality of inserting holes matched with the inserting rods in an inserting mode are formed in one side of the sliding frame, and a moving assembly for moving the inclined plates is arranged at the top end of the box body. The pull frame adjusting device has the advantages that the operation complexity when a user adjusts the pull frame is greatly reduced, the displacement of the pull frame does not need to be controlled through cooperative operation of the two hands of the user in the process, and therefore operation convenience and efficiency are remarkably improved.

The utility model provides a kind of transformer maintenance detection equipment, including sealing disc, measuring rod and clamping mechanism.Use, by the sealing disc cover is established in oil tank pipe orifice top, then through drive assembly drive multiple sets of clamping claw folding rotation, multiple sets of clamping claw folding rotation can be clamped oil tank pipe orifice, to fix sealing disc on oil tank pipe orifice, and make sealing disc and oil tank pipe orifice coaxial, fixed sealing disc is convenient, and it is convenient to clamp different size oil tank pipe orifice, then the measuring rod passes through through-hole and inserts into oil tank can make measuring rod keep vertical state and detect oil level, improve the accuracy of oil level detection, and the setting of sealing disc effectively reduces the gap between measuring rod and oil tank pipe orifice, to effectively avoid that foreign matter enters oil tank.

The utility model relates to the technical field of power distribution cabinet maintenance and detection equipment, in particular to a current, voltage and power operation maintenance and detection device for a 10KV medium-voltage power distribution cabinet. Comprising a detection device, a clamping structure is arranged at the bottom of the detection device, the clamping structure comprises an adjusting frame, the upward working face of the adjusting frame is attached to the downward working face of the detection device, clamping rods are movably inserted into the inner sides of the ends of the adjusting frame, and the two clamping rods are oppositely inserted into the two ends of the adjusting frame. Fixing bolts are screwed on the downward working face of the adjusting frame in a threaded mode, the two fixing bolts are arranged at the positions, close to the two ends, of the adjusting frame correspondingly, and one ends of the fixing bolts abut against the downward working face of the clamping rod. The beneficial effects of the utility model are that the detection device is clamped through the clamping structure, and the detection device can be fixed inside or outside the power distribution cabinet for use through the fixing plates and the second hand-screwing bolts arranged at the two ends of the clamping structure according to needs.

The invention provides a handheld portable intelligent secondary maintenance testing device and method. The handheld portable intelligent secondary maintenance testing device comprises a core control module, a multi-parameter measurement module, a safety interlocking module, a man-machine interaction module, a communication module and an energy management module. The core control module is used for realizing real-time interaction with other modules and simultaneously processing multiple paths of synchronous measurement data in parallel; the multi-parameter measurement module is used for realizing acquisition and measurement of direct-current resistance, alternating-current and direct-current voltage, insulation resistance and switching value; the safety interlocking module is used for monitoring and measuring the voltage and current states of the loop in real time and directly cutting off the power supply loop of the multi-parameter measuring module when a dangerous state is detected; the communication module is used for realizing data transmission and remote control; the man-machine interaction module is used for realizing man-machine interaction; the energy management module is used for providing an isolation power supply for all the modules and supports multiple charging modes. The problems that a traditional secondary maintenance device is high in safety risk, low in operation efficiency, disordered in data management and insufficient in environmental adaptability are solved.

The embodiment of the invention discloses a motor remote control circuit based on a wireless serial port, a rocker instruction is sent through remote control, a receiving circuit sends a control instruction to a corresponding motor after decoding, and the field debugging efficiency is improved. Meanwhile, in the testing process, due to the fact that the equipment is out of control due to certain risks during operation, testing personnel can issue sudden stop commands and the like through remote control, and the safety of the testing process and the safety of the testing personnel are maintained. According to the embodiment of the invention, the problem of difficulty in field debugging is solved, the motor and mechanical equipment can be quickly debugged, the field working efficiency is greatly improved, and the continuity of debugging and testing work is effectively ensured.

The invention discloses a test calibration method and device for an active safety system, a storage medium and equipment, and the method comprises the steps: obtaining road information corresponding to a test task when the test task of a to-be-tested vehicle sent by a user is received; generating a test road corresponding to the road mode according to the road mode and the center line; the method comprises the steps that a to-be-tested vehicle is controlled to be tested on a test road, a center line corresponding to the real-time position of the to-be-tested vehicle on the test road is collected, then a virtual lane line is generated according to the test road and the center line corresponding to the real-time position, and finally the to-be-tested vehicle is controlled to be tested on the virtual lane line according to a test task. And determining a test result or a calibration result. Therefore, the test road in a geometrical shape can be randomly generated through the test system, and after the vehicle starts the test on the test road, the virtual lane line can be obtained based on the real-time positioning information of the vehicle, so that the problem that a large amount of cost investment is needed to construct and maintain a test site is effectively solved.

1. The name of the design product: radar test platform program-controlled power supply. 2. The use of the design product: used for the maintenance test of radar products, improving the maintenance efficiency. 3. The design points of the design product: the combination of shape and pattern. 4. The picture or photo that best indicates the design points: perspective view 1.

The invention discloses maintenance and test equipment for emergency lifesaving communication equipment. The maintenance and test equipment comprises a shell assembly; the panel assembly is connected with the shell assembly in a turnover manner; the testing assembly comprises a fixing seat assembly and a connecting assembly, the fixing seat assembly is installed in the shell assembly, a positioning column is arranged in the fixing seat assembly and used for positioning a module to be tested, and the connecting assembly is located on the lower side of the fixing seat assembly and used for being connected with the module to be tested. The device has the beneficial effects that the design is convenient, the detection of a plurality of modules can be completed at one time, the test efficiency is improved, the integrated setting is realized, and the test operation is simple and reliable.

The invention discloses an operation and maintenance test method and system of an unmanned vehicle-mounted system, and belongs to the technical field of operation and maintenance test of the unmanned vehicle-mounted system, and the system comprises a state acquisition module, an analysis module and an unmanned test module. The state acquisition module is used for acquiring state data of the unmanned vehicle-mounted system in real time; the analysis module is used for analyzing the state data to obtain a unit evaluation result of each unit target; the unmanned test module is used for carrying out an unmanned test when a user has an unmanned driving demand, identifying a driving route, obtaining route information of the driving route, and generating a route information graph according to the driving route and the route information; correcting the unit evaluation result corresponding to each route area in the driving route according to the route information graph, determining an unmanned driving evaluation result of the route area according to the corrected unit evaluation result, supplementing the unmanned driving evaluation result into the route information graph, and displaying the route information graph to a user.