32results about How to "Save purchase funds" patented technology

The invention relates to an operation error remote calibrating method of an intelligent ammeter. The method comprises the following steps: (1) installing an intelligent ammeter cluster to form a tree-shaped topological structure; (2) to obtain a flow conservation foundation model of the intelligent ammeter cluster; (3) importing a virtual branch circuit to dynamically correct an intelligent ammeter cluster topological model, to obtain a flow conservation algorithm model; (4) to obtain electric current incremental data of the intelligent ammeter cluster repeatedly, and calculating a relative error; (5) correcting a calculation result and uncertainty evaluation; and (6) to obtain an error calculation result. The method is capable of, in allusion to 0.48 billion of the on-line operated intelligent ammeters in state grid corporations, applying a full data sample thinking mode, mining mass electric energy data of a power consumer electricity information collection system without the help ofan external standard instrument, carrying out the remote verification technical research of the intelligent ammeters, enabling both power supplier and consumer to master the accuracy of an electric energy metering device in real time, satisfying the expected requirement of clients, and improving the corporate image.

The invention discloses a battery online monitoring system and method. The system comprises a host computer, a battery information integrated management host, a data concentration module and a plurality of data acquisition modules. The data acquisition module is used for acquiring the individual voltage, the, the internal resistance, the charge and discharge current and temperature information ofa battery pack, and adjusting the voltage balance of the battery pack. The battery information integrated management host is electrically connected with the host computer and the data concentration module through a communication unit. The data concentration module interacts with the data acquisition modules successively. The battery online monitoring system and method replaces a battery insulationmonitoring device, uses new technology to monitor multiple states of the battery, and provides a battery monitoring function. The battery online monitoring system and method prolong the service lifeof the battery, saves the purchase fund of the battery, detect hidden dangers timely and reduce power loss. By means of the battery online monitoring system and method, it is no longer required to manually detect the internal resistance of the battery regularly and verify the capacity annually by operation and maintenance workers.

The invention discloses a method for detecting the insufficient depth of fusion in real time in a robot welding process. The method comprises the following steps of S1, collecting the welding voltage,the welding current and the welding speed in the robot welding process in real time; S2, calculating a real-time welding line energy of a corresponding section weld seam on the basis of the welding voltage, the welding current and the welding speed; S3, counting the welding line energy average value when the corresponding section weld seams have no defect; S4, judging whether the real-time welding line energy of the corresponding section weld seam is smaller than the welding line energy average value or not, if yes, entering a step S5, and otherwise repeating the step S4; and S5, pre-warningthe defects of insufficient depth of fusion of the corresponding section weld seam.

The invention relates to a multi-screen interactive VR teaching training method and system, a terminal and a storage medium. Contents displayed by virtual simulation in VR can be completed in the PC-3D editor on the interface, and after the desktop PC end is completed, the virtual end can obtain data to display scenes and teaching aid toy placement states, so that the teaching aid toy in the VR scene can be synchronized with the environment of the desktop terminal through training, learning and building, the building result in the VR virtual space-time can be obtained on the desktop by openingthe PC-3D under the condition that the VR is not started, further editing can be conducted, and the virtual 3D and the plane 3D can be complemented with each other..

The invention relates to an error control method for online operating smart electric energy meters based on full sample data thinking. The method comprises the following steps: (1) installing a smartelectric energy meter cluster to form a tree topological structure; (2) introducing a virtual branch to correct a smart electric energy meter cluster topological model; (3) eliciting a flow conservation algorithm model; (4) acquiring the sample data of all smart electric energy meters; (5) substituting all the sample data into the flow conservation algorithm model to calculate the errors of all the smart electric energy meters; and (6) realizing precise control according to the error results of all the smart electric energy meters. The method applies the full sample data thinking to the 480 millions online operating smart electric energy meters of the state grid corporation, excavates massive electric energy data of a power user electric information acquiring system, measures the error data of all electric energy meters, uses whole data instead of a random sample, requires no external standard equipment, carries out smart electric energy meter remote calibration technology research, and enable power supplier and consumers to be able to understand the accuracy of energy metering devices in real time.

The invention discloses a method for rapidly testing the content of a lead element in a plated layer of a tin plate. The method for rapidly testing the content of the lead element in the plated layerof the tin plate comprises the following steps: (1) pretreating a sample; (2) carrying out electrolysis tin removal; (3) preparing a standard solution, namely preparing a standard lead solution, a substrate improver and a diluent; (4) testing the lead element. By adopting the method, only one sample needs to be taken, and the method is short in detection time, high in efficiency and high in accuracy.

The invention discloses a special milling machine for machining separation plates of tube plates. The milling machine comprises a bracket, wherein a working table is arranged on the bracket; a guide rail and a screw are arranged at the upper end of the bracket; the guide rail is matched with a horizontal traveling mechanism and a vertical height adjustment mechanism; the screw is spirally matched with the horizontal traveling mechanism; a hand wheel is arranged at the other end of the screw; a milling mechanism is arranged on the vertical height adjustment mechanism; the horizontal traveling mechanism props against the vertical height adjustment mechanism. After the special milling machine for machining the separation plate grooves of the tube plates is manufactured, three plate grooves of three tube plates with the nominal diameters of DN800mm, DN1200mm and DN1800mm are selected for trial machining, the operation situation of the milling machine and the machining quality of a workpiece are evaluated, and the machining quality, accuracy and surface roughness of the workpiece can meet requirements of a drawing.

The invention aims to provide a scheme for detecting welding pores in real time. According to the scheme, in the welding process, infrared thermal imaging of a welding seam area on a workpiece or a base material is collected in real time through an infrared thermal imager, then the infrared thermal imaging on the workpiece or the base material is processed, an image corresponding to the welding area is selected from the infrared thermal imaging, and then a target feature matrix is extracted according to the image corresponding to the welding area; and according to the target feature matrix, whether the air hole defect exists in the welding area or not is judged. Compared with the prior art, the welding air hole defect can be detected in real time in the welding process, the welding air hole defect can be effectively pre-warned, the welding quality problem is reduced, and the production and machining efficiency is improved. The detection cost can be saved, and the manual detection cost and the procurement fund of professional detection instruments are reduced to a certain extent.

The invention discloses a hydrochloric acid tank. The hydrochloric acid tank comprises a tank body, a tank bottom, an acid mist pipeline, a self-circulation pipeline, an acid return pipeline, a conductivity assay pipeline, a regenerated acid entering pipeline, a rinsing water pipeline, an acid pump pipeline, a waste acid discharging pipeline, a waste acid pump supply pipeline and communicating pipelines. The acid mist pipeline, the self-circulation pipeline, the acid return pipeline, the conductivity assay pipeline, the regenerated acid entering pipeline and the rinsing water pipeline are arranged on the top of the tank body, the communicating pipelines are oppositely arranged on two sides of the bottom end of the tank body, the tank bottom is arranged at the bottom of the tank body, the section of the tank bottom is arc-shaped, the waste acid discharging pipeline is arranged at the lower end of the tank bottom, and the acid pump pipeline and the waste acid pump supply pipeline are arranged at the tank bottoms on two sides of the waste acid discharging pipeline. By configuring all pipelines on the acid tank to serve as spare parts, pipelines needed to be connected are connected according to a using position when the acid tank is used on line, and pipeline needed not to be connected are blocked with blank flanges, so that the probability that one spare part replace three acid tanks is achieved. The procurement fund is saved and the occupied space of the spare parts is reduced.

The invention provides an electric shovel wire inlet circuit control device for an electric hydraulic forklift, relates to the field of medium voltage electrical equipment control, particularly to the field of electric shovel inlet circuit control of the electric hydraulic forklift. The safe, reliable, and efficient control of the electric hydraulic forklift can be achieved by corresponding upgrading of replacing an SF6 circuit breaker with a vacuum circuit breaker.

The invention discloses a CNC-controlled three-axis parallel roll collar hole pattern machining method. A roll collar to be machined and a diamond grinding wheel with the standard radius are installedon a grinding machine, a grinding program is edited according to a hole pattern to be machined, parameters are input, a machining stroke is generated through CNC, and the diamond grinding wheel grinds the roll collar according to the machining stroke. The grinding steps comprise coarse grinding, pre-fine grinding, fine grinding and smoothing, after grinding, a WENTAST full-automatic measuring system is used for measuring parameters such as the groove distance and the groove depth of the roll collar, and the next grinding step is selected according to the measuring result until the hole pattern meets the requirement. According to the method, the diamond grinding wheel with the standard radius can be adopted for grinding different hole patterns, the diamond grinding wheel does not need to be specially customized and formed for grinding the roll collar with the optimized hole pattern, the special-shaped hole pattern which cannot be machined by the formed grinding wheel can be ground, on-schedule production of wires with the non-common specification can be guaranteed, the stock of the formed diamond grinding wheel is reduced, the production cost is reduced, and technical support is provided for wire production.

The invention discloses a milling mechanism for milling machines special for tube plate partitions. The milling mechanism comprises a fixing rack, a small pulley, a large pulley, a V belt, and a speed regulating motor. The large pulley is fixedly connected with a spindle. A three-jaw chuck and a milling tool are mounted at the lower end of the spindle. After a milling machine special for slotting tube plate partitions finishes is manufactured, three partition slots of three tube plates with nominal diameters (DN800mm, DN1200mm and DN1800mm) are subjected to trial machining, operating conditions of the milling machine and machining quality of work pieces are assessed, and results show that machining quality, machining precision and surface roughness of work pieces can all meet the demands of drawings.

The title of the present invention is a kind of multi-purpose height ruler, relate to a kind of measuring instrument of measuring height and depth. It mainly solves the problem of large-scale workpiece inspection, which requires large-scale measuring instruments and special inspection tooling, which requires a large investment. General measuring tools measure the surrounding dimensions on a certain benchmark, and the measurement range and position are limited. It is not easy to fix during operation and is susceptible to human factors. The problem of interference. One end of the main ruler of the present invention is fixed with a rotating shaft, the rotating shaft is connected to the magnetic base through a roller bearing, the horizontal auxiliary ruler is fixed on the main ruler perpendicular to the main ruler through the ruler frame, and the vertical auxiliary ruler and the horizontal auxiliary ruler are fixed vertically through the ruler frame On the horizontal sub-ruler, measuring claws are fixed at the end of the horizontal sub-ruler. The invention improves the machining efficiency and precision of workpieces.