8results about How to "Avoid inefficiencies" patented technology

The invention relates to the technical field of power systems, in particular to an intelligent substation relay protection secondary circuit verification device. A time synchronization signal in the intelligent substation is received through the time synchronization time synchronization module, after a local clock is calibrated, synchronous connection between the verification device and external time is disconnected, the time of the device is maintained to be stable through the time synchronization high-precision time keeping module, and when a time synchronization signal interface is lacked, the time synchronization signal is provided through the time synchronization time service module; the switching value acquisition and recording module records signal changes of an intelligent terminal device and a primary device mechanism action contact, the detection devices establish data connection with the relay protection tester through the tester communication interaction module and perform communication interaction, and a communication network of the multiple detection devices and the relay protection tester is constructed. By simplifying the verification process and improving the test reliability, a more efficient solution is provided for the power industry, and safe operation and management of the intelligent substation are promoted.

The present invention discloses a variable fixed-length cutting machine for corrugated pipes, comprising a feeding assembly, a positioning and cutting assembly, a blanking assembly and a visual camera. The feeding assembly and the blanking assembly are respectively arranged on both sides of the positioning and cutting assembly. The feeding assembly is used to load the corrugated pipe and transmit it to the positioning and cutting assembly. The visual camera is arranged above the positioning and cutting assembly and cooperates with the positioning and cutting assembly to achieve accurate positioning and cutting of the corrugated pipe. The blanking assembly is used to receive and output the cut corrugated pipe. In the positioning and cutting assembly, the main slide and the auxiliary slide are slidably installed and are dynamically connected to the retracting and releasing assembly. The main clamp and the auxiliary clamp are respectively assembled on the main slide and the auxiliary slide, and are linked with the positioning module. The cutter assembly is installed in the main clamp and the auxiliary clamp. The present invention significantly improves the cutting accuracy, production efficiency and convenience of subsequent processing of the corrugated pipe, and has broad application prospects and promotion value.

The embodiment of the invention provides a multi-node database cluster parameter detection method and a related device, and relates to the technical field of databases. The method comprises the following steps: constructing a multi-node parameter value mapping table so as to identify an association relationship between nodes and parameters in the multi-node parameter value mapping table through a unique key; predefining a parameter checking rule set, wherein the parameter checking rule set comprises a parameter consistency requirement and a compliance threshold value; and based on the multi-node parameter value mapping table and the parameter checking rule set, performing comparative analysis on the parameter values of the nodes in the multi-node database cluster, and outputting abnormal information. Based on the method, the detection efficiency and accuracy of multi-node database cluster parameter detection can be improved.

The utility model relates to the technical field of aluminum ladle pouring, in particular to an aluminum ladle anti-leakage wear-resistant castable layered pouring device which comprises a base, a supporting column is arranged at the upper end of the base, a mounting plate is arranged at the upper end of the supporting column, a containing groove is formed in the upper end face of the mounting plate, and a rotating disc is rotationally connected into the containing groove. A driving assembly for driving the turntable to rotate is arranged on the base, a plurality of mounting seats are arranged at the upper end of the turntable at equal intervals around the circumference where the turntable is located, a pouring pipe is arranged on each mounting seat, and the turntable is driven by the driving assembly to synchronously rotate in the containing groove, so that the pouring pipes on different mounting seats are driven to rotate to designated positions connected with an aluminum ladle feeding pipe; the rotating disc is in butt joint with an aluminum ladle feeding pipe, rapid switching of different pouring pipes is achieved, the pouring pipes are switched through rotation of the rotating disc, low-efficiency operation of manual disassembly and assembly is avoided, the pipe replacing time is shortened, the situation that the pouring quality is affected due to the too long interval is prevented, the leakage prevention and abrasion resistance of an aluminum ladle lining are improved, and the service life is prolonged.

The invention relates to the technical field of high-precision maps, and discloses a crowdsourcing map special lane updating method, device and equipment and a storage medium, and the method comprises the steps: obtaining a first road picture shot in a vehicle driving process and the track information of a vehicle; and according to the track information, matching the first road picture with a lane center line in crowdsourcing map data to obtain a second road picture bound with the lane center line. And identifying the special lane features in the second road picture, and generating a change point object containing special lane identification information. And according to the change point object, carrying out differential updating on the special lane data in the crowdsourcing map. According to the invention, poor time efficiency and identification errors caused by depending on a professional acquisition vehicle and a manual operation mode are avoided, low-efficiency operation of repeated updating and coverage of the whole special lane data is avoided, and high-efficiency and high-precision updating and maintenance of the special lane data can be realized.

This application discloses an optical gain correction method, device, and storage medium for circuit board defect detection, relating to the field of image processing. In response to receiving a selection operation on a target sub-image in an array sample image, a magnified image of the target sub-image is generated; in response to receiving a sampling operation on the target sub-image, a target sampling area in the target sub-image is determined, and the actual pixel values ​​of the RGB channels in the target sampling area are calculated; the target pixel values ​​of the RGB channels in the target sampling area are obtained, and a channel gain value is determined by comparing them with the actual pixel values. The optical parameters of each column of cameras are adjusted based on the channel gain value, facilitating subsequent synchronous image acquisition and defect detection by the array camera module. By generating a magnified image of the target sub-image, calculating the actual pixel values ​​of the sampling area, and adjusting the channel gain value, rapid synchronous correction of the optical parameters of the array camera module is achieved, offering advantages in improving correction efficiency and detection accuracy.

The invention belongs to the technical field of enzyme gene engineering and enzyme engineering, and discloses a 5alpha-reductase mutant and application thereof in synthesis of steroid C4, 5 hydrogenation drug intermediates. Compared with an amino acid sequence of wild type 5 alpha-reductase, the mutant has mutation of at least two sites corresponding to the following sites of the amino acid sequence as shown in SEQ ID NO.1: the 56th site, the 109th site and / or the 144th site. The mutant has efficient catalytic activity on 3-keto steroids, a high-yield target product is obtained under high substrate feeding concentration, no by-product is generated, and the conversion rate is not lower than 99%. The invention also discloses a coding gene, a recombinant vector, an engineering bacterium and application of the mutant, the reaction conditions are mild, the process is simple and environment-friendly, the defects of the traditional method are effectively overcome, technical support is provided for green industrial production of steroid drug intermediates, and the application prospect is wide.

The utility model relates to a supporting leg poking and mounting device and crane mounting equipment, and the supporting leg poking and mounting device comprises a moving assembly, a first sliding rail and an auxiliary pushing assembly, the moving assembly is movably arranged on the first sliding rail and supports one end of a to-be-mounted supporting leg; the auxiliary pushing assembly is arranged on the moving assembly in a telescopic mode and abuts against the rear side face of the supporting leg to be installed. According to the supporting leg poking and mounting device, the supporting legs are accurately, safely and efficiently pushed into the supporting leg cavities, and the manual mounting burden is effectively reduced.