134results about How to "Precise operation" patented technology

The invention particularly relates to an electric power system static voltage stability assessment method considering the electric automobile charging characteristic and the load fluctuation limit. The method comprises the steps of establishing of a power grid node injection power random mode, Sobol sequence construction in a QMC sampling method, electric power system static voltage stability critical state searching and establishing of a static voltage indictor assessment system. The defect that the conventional analysis method can only analyze the static voltage stability limit of the system under the single load growth mode can be improved, the influence of the charging characteristic and the load random fluctuation on the static voltage stability of the system after an electric automobile accesses to the power grid can be researched and considered and different static voltage instable states of the power grid can be searched. The operation process is rapid, efficient and accurate; and the analysis conclusion is that an electric power system static voltage stability weak area can act as the key monitoring object of actual power grid operation so that power grid operation personnel are enabled to timely take corresponding load shedding measures, the accident of whole grid voltage collapse can be avoided and the engineering practicality is high.

The invention provides a real-time detection method for detecting the mixture paving uniformity on a bituminous pavement. According to the method, the color digital image of a paving pavement is shot in real time during the paving process of a bituminous mixture paving machine at a preset acquisition height, a preset light source luminance and a preset illumination angle; subjecting the obtained color digital image to ashing, filtering, histogram equalizing, image binaryzation and morphological processing by adopting the MATLAB software; obtaining the static distance difference alpha 0 of aggregates of each particle size range in the bituminous mixture relative to the X-axis and the Y-axis, the sum alpha 1 of all static distance differences in each secondary area relative to the original center of the image, and the sum alpha 2 of all static distance differences in each secondary area themselves, and adopting alpha 0, alpha 1 and alpha 2 as indexes for evaluating the mixture paving uniformity on the bituminous pavement. According to the technical scheme of the invention, the paving uniformity of the bituminous mixture during the paving process can be simply, quickly and quantitatively tracked, detected and analyzed in real time based on the digital image processing technology. Meanwhile, the system software is accurate in operation, fast in analyzing speed, reliable in data and convenient in operation.

The invention discloses a spatial depth extraction method based on light field information. The method comprises the following steps that step 1, a reference view point is selected in four-dimensional light field data, and the spatial depth of the image edge component of the reference view point is calculated; step 2, area segmentation operation is performed on the image of the reference view point, and the image is segmented into multiple areas according to the color or brightness uniformity; and step 3, the spatial depth of all the segmented area edges is corrected, and interpolation operation is performed on the spatial depth of the central part of the area according to the corrected spatial depth. The problems of difficult description function selection and uncertain operation time of a spatial depth description function optimization method can be avoided through the method of taboo search, area segmentation and depth interpolation, etc. so that rapid and accurate operation of spatial depth extraction can be realized.

The embodiment of the invention discloses a parcel sorting method and system. Parcels are positioned based on a visual imaging system to obtain imaging information of the parcels, then the coordinaterange correspondingly to each parcel is obtained through the data processing of a control device, according to the location distribution of each parcel on a separator, an appropriate scheduling strategy is used combined with the performance of the separator, and finally the scheduling strategy is sent to the control device to separate the parcels. The method is more accurate in control accuracy and processing throughout than a traditional way through the visual system, and it is not necessary to control the position situation of the parcels flowing into a first conveyor belt in advance by human intervention; and meanwhile the distribution labor cost of a current logistics company in the sorting process can be saved, after the integration of the whole device, the maintenance and improvementin the later stage are also convenient, and the degree of automation of the logistics can be improved.

The invention discloses an integrally-suspended gravitational levelling type laser measuring instrument for a building. The instrument comprises a main instrument frame, wherein gear racks which are matched with gears through a gear shaft are arranged at two sides of the upper part of the main instrument frame; a group of movable transverse racks is arranged in the main instrument frame in a sliding manner; sliding racks which are engaged with the gears are arranged at the upper parts of the movable transverse racks; the end parts of the movable transverse racks are connected with side frames which are in match with lifting oil cylinders; a slide seat is arranged at the lower part of the main instrument rack in a sliding manner, and a connecting rod is arranged at the lower part of the slide seat; an angle ruler is arranged at the lower part of the connecting rod, and the bottom end of the connecting rod is in rotating fitting with a main machine of the measuring instrument. According to the integrally-suspended gravitational levelling type laser measuring instrument for the building, the span and the height can be flexibly adjusted; meanwhile, the levelness of the main machine of the measuring instrument can be ensured, and the main machine of the measuring instrument be accurately transversely moved and rotated by angles during being operated, so that the building measurement accuracy can be ensured.

The invention discloses an intelligent replenishment method based on end-to-end learning. The method comprises the following steps: S1, acquiring data required by a mathematical model; S2, generatingsales features related to the sales volume according to the obtained data; S3, taking the characteristics predicted by the sales volume as original input values; establishing a mathematical model according to the total operation cost; the total operation cost being used as a loss function; solving and directly outputting suggest replenishment amount. Different from reduction of manual preprocessing and follow-up processing, direct output from original input to final output and direct output of results after replenishment by taking sales prediction features as original input values, end-to-endalgorithm learning is realized, so that the algorithm efficiency is improved, and the optimization space is expanded. The invention further provides a storage medium. The invention further provides anintelligent replenishment system. The invention further provides an intelligent replenishment device.

The invention provides an operation object method. The method comprises that an operation object selection request with a popularization user is received; according to an object assigned by the operation object selection request and the popularization user identification, a graphic code is generated and output; a Web address obtaining request is received, and the Web address obtaining request carries the graphic code or an object identification which is obtained by analyzing the graphic code; according to the Web site obtaining request, the Web address corresponding to the object identification which is obtained by analyzing the graphic code is returned; the returned Web address is used to trigger access to the object by taking the popularization user identification, which is obtained by analyzing the graphic code, as the access parameter; and an operation result, with the popularization user identification, triggered after that the accessed object completes assigned operation is received. The operation object method provided by the invention is convenient, rapid and efficient, and can be used to monitoring the whole operation process. The invention also provides an operation object device and system.

The invention discloses a robot based on visual recognition, which includes a robot body composed of a head, body parts and legs; wherein the head is provided with a visual recognition system; the visual recognition system includes an image acquisition module; the image The acquisition module includes an omnidirectional image unit arranged on the top of the head; the omnidirectional image unit includes a top camera; the top camera is connected with an image acquisition card; the image acquisition card is connected to the input end of the image sensor; the image The sensor is connected with a signal transmitting circuit; and the body part is provided with a first driving motor and a PLC controller, and the legs are provided with a pair of driving wheels, and the first driving motor is connected with the PLC controller and the driving wheels respectively. connected, the PLC controller is provided with a signal control circuit for receiving control signals from the host computer.

The invention relates to the field of culture and specifically provides a device for combing rabbit hair. The device comprises a fixing mechanism and a combing mechanism. The fixing mechanism is used for rapidly loosening or clamping legs of rabbits; kinetic energy stored after compression of a second spring enables a downward gliding block which glides downward to return to an original position quickly to finish the resetting of the whole fixing mechanism. In the whole process, workers do not need to adjust the whole clamping fixing device; the combing mechanism can comb rabbit hair and remove impurities in rabbit hair by using strong wind. The device can rapidly comb rabbit hair.

The invention relates to a neurosurgical monitoring and microscopic operation device and belongs to the technical field of medical apparatuses. The neurosurgical monitoring and microscopic operation device provided by the invention comprises an equipment supporting column, wherein the right side of the equipment supporting column is provided with a power line interface, the right side of the power line interface is provided with a power conducting wire, the left side of the equipment supporting column is provided with an equipment connecting arm, the left side of the equipment connecting arm is provided with an ultrasonic monitoring console, the front side of the ultrasonic monitoring console is provided with an equipment controller, an internal controller is provided in the ultrasonic monitoring console, the front side of the internal controller is provided with a button control panel, the lower side of an observer reinforcing device is provided with a microscopic observer, the upper side of the microscopic observer is provided with an observation lens tube, the upper side of the observation lens tube is provided with an observation port, and the front side of the microscopic observer is provided with a display screen. The neurosurgical monitoring and microscopic operation device has the advantages that the structure is simple, the device is simple and convenient to operate, the medical personnel can be helped to accurately perform surgical operations, the pains of patients are reduced, the surgical efficiency is improved and the workload of the medical personnel is relieved.

The invention belongs to the technical field of orthopaedic surgeries, and particularly relates to a bone debris splash preventing bone drill. One end of an electric drill is connected with a rotating shaft, and the other end of the electric drill is connected with a handle; a drill bit is arranged on the rotating shaft; the bone debris splash preventing bone drill is characterized by also comprising a bone debris protective device, wherein the bone debris protective device comprises a protective cover arranged between the drill bit and the electric drill and an auxiliary protective shell; the drill bit penetrates through the protective cover; the protective cover is adjacent to the drill bit; the lower end of the protective cover is provided with a guide slot communicated with the protective cover; the guide slot is connected with the auxiliary protective shell through a connecting tube; openings are respectively formed between the connecting tube and the guide slot and between the guide slot and the auxiliary protective shell; a debris poking gear is arranged in the auxiliary protective shell; the rotating shaft penetrates through the center of the debris poking gear; the auxiliary protective shell is communicated with a guide tube positioned below the auxiliary protective shell. The bone debris splash preventing bone drill has the beneficial effects that bone debris generated in the using process of the bone drill can be effectively prevented from splashing, the influence to an operator is reduced, an operation technique is more accurate, and the safety of a patient is guaranteed.

The apparatus to calculate remaining capacity of a battery is provided with a current detection section to detect current flow in the battery, a remaining capacity calculation section to integrate the current value detected by the current detection section and calculate remaining capacity, and a memory section to store discharge current within a specified current range. When current detected by the current detection section is in a specified range, the remaining capacity calculation section uses current values stored in the memory section, rather than values detected by the current detection section, as discharge current to calculate remaining capacity.

The invention relates to a digital control system of an asynchronous motor soft starter. The digital control system comprises a synchronous signal detection circuit, a thyristor control module, a contactor, an electromotor signal detection module, a complex programmable logic device (CPLD) trigger pulse generation circuit and a digital signal processor (DSP) master control circuit, wherein the synchronous signal detection circuit is arranged on a three-phase power supply; the thyristor control module is connected with the three-phase power supply and an electromotor respectively; the contactor is connected with the three-phase power supply and the electromotor respectively; the electromotor signal detection module is connected with the electromotor; the CPLD trigger pulse generation circuit is connected with the synchronous signal detection circuit and the thyristor control module respectively; and the DSP master control circuit is connected with the CPLD trigger pulse generation circuit, the contactor and the electromotor signal detection module respectively. Compared with the prior art, the digital control system has the advantages that a DSP and a CPLD is combined, the running efficiency and the control accuracy of the system are improved, the stability, the interference resistance and the security of the system are enhanced, and the digital control system has high universality and maneuverability.