32results about How to "Timely detection of defects" patented technology

The invention relates to a split line moving platform. A power transmission lead is used as a working path in the platform, various barriers (a vibration damper, a crimping pipe, a spacing bar, a suspension line clamp, an insulator string and the like) are spanned and avoided, the platform is provided with a camera which can observe the condition of the running line and timely discover the defects of the line and hardware tools, and other working mechanical arms can be expanded to finish clearing line barriers and the like. A robot has flexible action and large working range, has the effect of protecting devices during jumping the barriers, and has high safety and reliability. The platform mainly consists of a traveling device, a driving arm device, an anti-tilting device and a power supply control box; and the traveling device is arranged on an electric cable and connected with the driving arm device, and the anti-tilting device is arranged at the tail end of the traveling device.

The invention is an imaging method and device for visual inspection of the surface quality of a hot cylindrical long material. The imaging device includes a plurality of imaging units, a control system and a synchronous adjustment mechanism. Through the synchronous adjustment mechanism, the outer diameter of the cylindrical long material is controlled by the size of the outer diameter of the cylindrical long material. The system calculates the position parameters that the imaging unit needs to adjust, and the synchronous adjustment mechanism realizes the automatic adjustment of the imaging unit. The invention can detect the surface quality of different types of cylindrical long products for the same unit, and the visual inspection system can adjust the position of the imaging unit according to the outer diameter of the cylindrical long products, so that the distance between the image sensor and the surface of the cylindrical long products can be kept constant, so as to obtain Stable high-quality images, so as to achieve stable online inspection of the surface quality of hot cylindrical long products, timely detection of surface defects of cylindrical long products, reduce the occurrence of batch defects, and improve the yield.

The present invention is an on-line monitoring system and method for transformer operating status based on OFDM carrier signals. The concentrator and its carrier communication module CCO installed on the secondary side of the distribution transformer are installed after the primary side of the distribution transformer passes through a voltage transformer and a current transformer. The three-phase carrier communication equipment includes the primary side three-phase carrier communication module STA‑P3H and the power supply module, and uses the OFDM carrier signal to realize the measurement, recording, tracking and monitoring of the online frequency characteristics of the primary and secondary sides of the transformer. In this way, transformer defects can be found in time without the transformer having to be shut down, and fault warning can be provided.

The invention discloses an automobile chute locking device, which comprises a base frame, a rotating piece and a trigger frame; it is characterized in that a number of fixing holes are opened on the body of the base frame, and a folded part connected with the body is formed, and the rotating piece is connected by An open rivet is movably riveted under the folding part, and the open rivet is covered with a torsion spring; the rotating piece is fixedly riveted with a long axis and a zipper rivet, and the riveted part of the long axis protrudes from the rotating piece; the trigger frame is also movably riveted on the aforementioned folding part On the trigger frame, there is a buckle groove, and the riveted part of the aforementioned long axis is pressed into the buckle groove. It is directly fixed on the sliding core and moves synchronously with the sliding core, and cooperates with the stopper in the chute to stop the sliding core, so there is no coordination error between the sliding core and the sliding core can be stopped conveniently and quickly at any time. And it has two braking mechanisms, which improves the practicability of this type of automobile chute locking device, and also overcomes the shortcoming that the failure of one braking structure leads to the failure of the entire automobile chute locking device.

The invention discloses an endoscope device for internal imaging of a high-temperature kiln. The endoscope device comprises a normal incidence window, an oblique incidence window, an endoscope objective lens and an endoscope relay lens; the normal incidence window is used for isolating the objective lens of the endoscope from external high temperature while ensuring light transmission; the oblique incidence window converts lateral oblique incidence light into normal incidence light to enter the objective lens, and meanwhile the objective lens of the endoscope is isolated from external high temperature. The endoscope objective lens is located behind the normal incidence window or the oblique incidence window, and the endoscope objective lens images incident light in the view field range to the position in front of the endoscope relay lens. The endoscope relay lens extends an image formed by the endoscope objective lens for subsequent imaging. By means of the mode that the oblique incidence window and the normal incidence window are combined, the same endoscope objective lens and the same endoscope relay lens are adopted for imaging, forward 180-degree dead-angle-free imaging is achieved, the high-temperature working condition in the high-temperature kiln is overcome, and while normal work of the kiln is not affected, real-time imaging is conducted on the interior of the kiln, and defects in the kiln are found in time.

The invention discloses a method and system for automatically identifying roll eccentricity based on the rolling force of hot-rolled strip steel. The method includes: acquiring rolling force fluctuation data of the rolling mill along the length direction of the strip steel; calculating the circumference of each roll according to the roll diameter Interval rolling force fluctuation data; calculate the similarity of the rolling force fluctuation data in the adjacent two roll circumference intervals; score the calculated similarity according to the standard threshold to obtain the roll eccentricity state score, by combining the roll eccentricity state score with The preset threshold value is relatively large to determine whether there is roll eccentricity. The invention can calculate the similarity information of the rolling force fluctuation in the strip length direction in real time, automatically judge whether there is roll eccentricity in the rolling mill according to the recognition algorithm, and provide a data basis for the timely discovery of the rolling mill roll defects on the production site.

The present invention provides an electric vehicle and its battery management system. The system includes a main board, several sub-boards and several battery cells. The transmission rate and then calculate the bus load rate of the CAN bus during this time period; the main board also obtains the temperature information and voltage information of the battery cells corresponding to each sub-board within this time period, and the main board / sub-board according to the The variance of the average temperature and the variance of the average voltage are respectively calculated by the scoring parameters obtained by the sorting algorithm to obtain the score of the sub-board, and then the priority of the sub-board is obtained; the main board judges whether the bus load rate is within the expected range, and combines each The priority of the sub-boards dynamically adjusts the frequency at which each sub-board sends packets. The battery management system can reduce the bus load rate according to the data weight, realize the reliability and security of the message information transmission of each sub-board, and then improve the performance of the electric vehicle.

The invention discloses a nuclear power station card burn test temperature and humidity monitoring system and method. The monitoring system includes a burn test cabinet, a front-end processor, a switch, a temperature and humidity monitoring device connected with the front-end processor through the switch, and a temperature and humidity adjustment device connected with the temperature and humidity monitoring device; the front-end processor, the switch, the temperature and humidity monitoring device connected and the temperature and humidity adjustment device are all arranged in the burn test cabinet; the front-end processor is used for receiving temperature and humidity distribution cases, analyzing the temperature and humidity distribution cases to obtain temperature and humidity control instructions, issuing the temperature and humidity control instructions, and feeding back and storing monitoring data; and the temperature and humidity monitoring device is used for receiving the temperature and humidity control instructions, monitoring the temperature and humidity in the burn test cabinet, and uploading temperature data and humidity data to the front-end processor, and controlling the startup and shutdown of the temperature and humidity adjustment device based on the temperature and humidity control instructions, the temperature data and the humidity data. With the nuclear power station card burn test temperature and humidity monitoring system and method of the invention adopted, environmental temperature and humidity can be maintained at a stable level in a long-time burn test process of cards.

The invention discloses a continuous integration method for software construction, which includes: starting a version control library, establishing an environment in which the entire construction runs, extracting input and output metadata in the version control library; parsing and converting related data files to generate The final output result; packaging the output result into a complete installable file form; migrating the build to the operating environment, performing a functional integration test, and recording and storing the test results, the test results include the running time of each step, Running status, running result and running log; generating an entry html file from the test result, compressing and packing the html file, and sending it to the development user automatically by email. The invention also discloses a software construction continuous integration system. By adopting the invention, software defects or updates can be found in time, and software defects can be repaired or an update program can be started, which can greatly improve development efficiency and reduce error rates.

A camera shooting module performance test method comprises the following steps of providing a camera shooting module and measuring size parameters of the camera shooting module; electrically connecting the camera shooting module and a DC stabilized power supply and measuring electric parameters of the camera shooting module under room temperature; placing the camera shooting module into a temperature box and testing temperature of the camera shooting module; taking the camera shooting module out of the temperature box and recovering to the room temperature; providing a lamp, assembling the camera shooting module and the lamp, and starting the camera shooting module for discharge testing; carrying out electromagnetic interference tests on the assembled lamp assembly; performing button fatigue tests on the assembled lamp assembly; performing temperature tests on heating devices on the camera shooting module; and placing the camera shooting module into the temperature box, starting a video recording function, and carrying out endurance tests on the camera shooting module. With adoption of the camera shooting module performance test method provided by the present invention, defects of the camera shooting module can be timely found out, and the aims of detecting abnormities caused by designs, manufacturing techniques or assembling and using environments of the camera shooting module are achieved.

The invention provides a bridge deformation monitoring method. A permanent benchmark point is arranged in a pier top position in a bridge girder box chamber, and a cross section monitoring point is arranged in each segmental beam; the height difference between the cross section monitoring point in each segmental beam and the benchmark point is measured through a level gauge, so that the elevationof the cross section monitoring point in each segmental beam is obtained through calculation; and the deformation situation of each segmental beam can be mastered by comparing the measured elevation numerical values of the cross section monitoring points in the segmental beams, so that the purpose of continuously monitoring the deformation condition of a bridge is achieved. By applying the monitoring method, the construction period and the operation period of the bridge can be continuously monitored, so that the abnormal situation of the bridge in the construction and operation processes can be found in time. The invention further discloses a monitoring point arrangement device adopted by the bridge deformation monitoring method. The monitoring points are fixedly arranged on a web plate inthe bridge box chamber through supporting parts. The device is simple and reliable in structure and easy to install, and the accuracy of measuring data is effectively guaranteed.