228results about How to "Reduce miss rate" patented technology

The invention provides a method for automatically testing relay protection equipment. The method comprises the steps of: generating a test input quantity, detecting an output quantity of an object to be tested, and monitoring an intermediate quantity of the object to be tested through a distributed simulation environment, and forming a complete process of a closed-loop test; storing a fixed value, a pressure plate, a message and other information of relay protection equipment to be tested through a manner of a database, and storing the test input quantity and the output quantity of the object to be tested during the testing process; testing input equipment and the object to be tested through network connection; and controlling test input through a manner of command, then receiving the feedback of the object to be tested, finally intelligently comparing with an expected result stored in the database, and storing a feedback result in the database. By adopting the method for automatically testing the relay protection equipment provided by the invention, external properties of the relay protection equipment can be automatically monitored, the reliability of testing of the relay protection equipment and the testing efficiency are improved, and the probability of finding of hidden defects is increased.

The invention discloses a mesocyclone identification method based on Doppler radar echo images. The mesocyclone identification method comprises the following steps of: filtering reflectivity images with 0.5-degree, 1.5-degree and 2.4-degree elevation angles to acquire an effectively reflectivity area; blending information on the effective reflectivity area into radial velocity images with same elevation angles to acquire radial velocity images of a limited searching area; segmenting the radial velocity images into which the information on the effective reflectivity area is blended, and screening positive and negative velocity center areas in the radial velocity images; configuring all possible velocity pairs through distribution histograms of radial velocity values of the velocity center areas so as to obtain a velocity pair set; and eliminating pseudo velocity pairs from the velocity pair set, and identifying the mesocyclone. By the mesocyclone identification method, the complicity of time and space is reduced, most of false mesocyclones are eliminated, the identification rate is increased, the misstatement rate is reduced, the working efficiency is improved; moreover, the method has the characteristic of not limiting the cyclone direction and structure information of the mesocyclone, so the identification result is more comprehensive.

The invention relates to a system and a method for improving the read-write success rate of radio frequency identification (RFID) tags on a movement production line. The system consists of a production management application server, read-write control, data detection, error correction control and security protection; the read-write control, the data detection, the error correction control and the security protection are respectively connected with the production management application server through a wired network and / or a wireless network; four different terminals using a computer, RFID, automatic control and the like and the production management application server execute tasks respectively set and are tightly matched; the data in the RFID tags is subjected to the functions, such as precise identification, multiple writing, verification, information protection, and automatic sorting of failure lags on the movement production line; the read-write success rate of the RFID lags data on the movement production line is remarkably improved; the productive efficiency is optimized; and the intelligent management for the production line is realized, so the system and the method provided by the invention have excellent polularization and application prospects on the modern industrial production line.

A method is provided for controlling a cache system. The cache system to be controlled comprises a direct-mapped cache configured with a small block size, and a fully associative spatial buffer configured with a large block, which includes a plurality of small blocks. Where accesses to the direct-mapped cache and the fully associative buffer are misses, data of a missed address and data of adjacent addresses are copied to the large block in the fully associative spatial buffer according to a first-in-first-out (FIFO) process. Furthermore, if one or more small data blocks is accessed among its corresponding large block of data which is to be expelled from the fully associative buffer, the small block(s) accessed is copied to the direct-mapped cache.

The invention discloses a system and a method for positioning underground coal mine staff based on RSS (received signal strength) and TOA (time of arrival) complementation, and belongs to the field of mine monitoring and communication. The direction of the staff is determined by the aid of a directional antenna, distance information of a staff positioning card reader and an identification card is detected by an RSS method with high accuracy in an area which possibly cannot be detected by a TOA method, distance information is detected in other areas by the TOA method with higher accuracy, processing delay is fixed, signals are repeatedly transmitted and received by a transmitting end and a receiving end, timing errors of timing equipment are eliminated, positioning information including identity information of the underground coal mine staff is generated and outputted, and the underground coal mine staff is accurately positioned. Under the condition of decreasing positioning equipment and positioning density, the problems that errors are large when a measured distance is long in a roadway by the RSS method and misreading is caused when the measured distance is short in the roadway by the TOA method are solved, so that the underground coal mine staff is accurately positioned.

In an embodiment, a display pipe includes one or more translation units corresponding to images that the display pipe is reading for display. Each translation unit may be configured to prefetch translations ahead of the image data fetches, which may prevent translation misses in the display pipe (at least in most cases). The translation units may maintain translations in first-in, first-out (FIFO) fashion, and the display pipe fetch hardware may inform the translation unit when a given translation or translation is no longer needed. The translation unit may invalidate the identified translations and prefetch additional translation for virtual pages that are contiguous with the most recently prefetched virtual page.

The invention discloses an integrated circuit testing method, device and system. A common substrate comprises a plurality of units to be tested and a plurality of operation result comparison devices for the units to be tested, wherein different units to be tested execute same input excitation and generate respective operation results, the operation results are compared by the corresponding operation result comparison devices to generate comparison features, and invalid tested units are detected according to the features. According to the invention, the testing cost can be reduced, the time for forming scale mass production can be shortened, and the missing rate is decreased.

The invention provides an erect-planting seed sowing machine for garlic. According to the erect-planting seed sowing machine for the garlic, the garlic can be buried erectly, and the scaly bud direction is stable to control. The erect-planting seed sowing machine comprises a machine frame, a seed fetching device, an erect planting device, a soil leveling device, a scaly bud direction control device, a quantitative water injection device, a transmission device and a land wheel device, wherein the machine frame is a carrier of the entire seed sowing machine; the seed fetching device is located at the front part of the entire seed sowing machine; the erect planting device is located at the front part of the entire seed sowing machine; the soil leveling device is located in front of the erect planting device; the scaly bud direction control device is arranged between the seed fetching device and the erect planting device and is matched with the seed fetching device and the erect planting device; the quantitative water injection device is located at the rear part of the seed fetching device, is located above the scaly bud direction control device and is matched with the scaly bud direction control device; the transmission device is used for supplying power to all functional components; and the entire seed sowing machine achieves power by friction between the land wheel device and the ground, and the land wheel device is used for pressing the sown garlic.

This invention discloses one automobile illegal switch and illegal automatic monitor system, which comprises the following parts: industry control computer, color camera, aid light source, image process unit, communication unit, wherein the industry control computer comprises pad identification module and catch module; the color cameral sets three camera machines with one for automobile car, two for left switch car and three for switch car; the color camera is connected with image process unit and the aid light source, image process unit, communication unit are connected to industry control computer.

The invention discloses an air-suction-type seed sowing device for a seeding machine. The air-suction-type seed sowing device comprises a seed pickup device. The seed pickup device comprises a shell, a cover plate and a seed storage plate. A motor is arranged on one side of the cover plate. The output shaft of the motor stretches into the shell. A seed sowing disc is installed on the part of the output shaft in the shell. A plurality of seed suction ports I are arranged in the seed sowing disc. A seed outlet is arranged in the bottom of the shell. A seed inlet pipe is arranged on one side of the cover plate far away from the shell. A seed inlet is arranged in the cover plate. A sealing cover device is installed on one side of the shell far away from the seed inlet pipe. The sealing cover device comprises a boarding I. A baffle I is arranged on the boarding I. An air outlet I is arranged on the baffle I. An air damper corresponding to the position of the seed suction ports I which are arranged at the lowest position of the seed sowing disc is arranged in the boarding I. The air-suction-type seed sowing device additionally comprises a monitoring and control system which is used for monitoring whether the seed suction ports I suck seeds in real time and controlling the motor. Since the air-suction-type seed sowing device is driven by the motor, the defect that a floor wheel slips in the prior art is avoided, the situation of miss seeding can be automatically detected and the seeds can be replenished in time.

An embodiment of the invention discloses a communication information state identifying method in a communication device. The communication information state identifying method comprises identifying information states of received communication information as unprocessed states. When the communication information completely enters appointed visible areas of a screen of the communication device, the information states of the communication information are identified into processed states, and the information states of the communication information is displayed as processed states in the communication device. The embodiment of the invention further discloses the communication device. The communication information state identifying method has the advantages of improving information state identification rate of the communication information, reducing misreading rate of the information and enhancing information state identification user experience.

The invention discloses an image anomaly detection device and method. The device comprises an acquisition module and a comparison module; the acquisition module is used for synchronously acquiring image frames which a display terminal under detection displays; resolution of the acquisition module is greater than that of the display terminal; the comparison module is used for comparing the acquired image frames to a preset reference frame and judging whether or not anomalies occur to the acquired image frames according to comparison results. The image anomaly detection device and method has the advantages that quality of an image displayed on the display terminal is automatically tested so that detection labor is greatly relieved; testing results are more accurate, and chances that missing image anomalies occur in testing are slimmed; testing is simple, safe and reliable, and defects of a manual testing method are made up.

The invention discloses an electronic capsule capable of actively changing the photographing angle, which comprises a housing, and an imaging and photographing unit, a microprocessor, a motor, a wireless emitter, an antenna, etc., which are arranged in the housing. The electronic capsule is characterized in that the motor is a miniature flat eccentric motor or a flat vibration motor. The photographing angle can be changed by rotating the eccentric motor or the flat vibration motor to achieve photographing at different angles. The electronic capsule is particularly suitable for examining human organs with larger inner space and no natural orientation effect, such as the stomach or the large intestine. The electronic capsule has the advantages that the electronic capsule can be used for replacing a gastroscope to change micro-invasive examination into non-invasive examination, thus obviating the fear of gastroscope, obviating anesthesia before examination, eliminating various adverse effects in the examination process, and providing a selectable means for people not suitable for gastroscope examination. When one or more pictures are photographed, the eccentric motor is rotated under the control of the microprocessor to change the photographing positions, and then the photographing unit performs subsequent photographing until the entire stomach is photographed.

The invention discloses an anti-collision method for identifying multiple radio frequency identification (RFID) tabs, which is characterized in that according to the index of a radio signal strength indicator (RSSI) communicating between the RFID tabs and a reader, regional division is performed on the induction range of the reader to form a plurality of different induction areas; the RFID tabs covered by each induction area form a corresponding tab group; and moreover, data are transmitted by the RFID tabs in different tab groups at different time ranges, whereas data transmission is realized between the RFID tabs in the same one group and the reader by adopting a conventional anti-collision algorithm. The problem that normal communication cannot be realized because signal collision is generated in the communication process of a great number of tabs and the reader can be effectively solved, the identification efficiency under such the condition is greatly increased, and the misreading rate can be effectively reduced. The reader is higher in reading efficiency and communication stability when reading the information of a great amount of tabs.

The invention discloses a method for detecting leakage of a lithium ion battery, comprising the following steps: a) placing a lithium ion battery to be detected into a space the top of which is provided with an air outlet; b) heating the lithium ion battery to be detected; c) collecting gas at the air outlet; d) detecting the content of organic compound component in the collected gas; and e) determining whether the leakage of the lithium ion battery is existed or not by comparing the content of the organic compound component with a threshold. In the invention, variation of the external environment caused by the leakage of the lithium ion battery is detected, and inspection on the sealing effect of the lithium ion battery is realized, thus avoiding loss of leakage and ballooning safety potential caused by poor sealing property of the battery to a customer.

Vacuum adsorption seedling seedling precision seeder, including a conveying device (8) installed on the frame (2) driven by a geared motor (7), located above the conveying device and arranged in sequence from the input end to the output end of the conveying device The tray feeding device (1), covering soil flattening device (3), leveling device (4), pressure hole device (5), vacuum adsorption seeding device (6), in the pressure hole device (5) and vacuum adsorption sowing A synchronous transmission device (12) is connected between the devices (6), and horizontal push rods (10) are evenly distributed on the conveying surface of the conveying device. The invention can realize continuous and automatic completion of seeding and seedling raising work on the entire assembly line, improve seeding continuity and seeding efficiency, and realize seedling seeding seeding of various seed plug trays.

Embodiments of the invention provide a method and a device for data caching processing. The method for data caching processing comprises: receiving an access response message sent by internal storage, the access response message comprising accessed data and cache line addresses, the access response message being a response message corresponding to an access request message received by the internal storage when cache miss of each level cache; determining access frequency of the cache line addresses; and according to the access frequency, storing the access response message in the corresponding cache. The method and the device reduce miss rate of first level cache, and improve performance of a whole computer.

The embodiment of the invention provides a management method for an instruction cache and a processor, relates to the field of computers, and aims to expand the instruction cache capacity of a hardware thread, lower the missing rate of the instruction cache and enhance the system performance. A hardware thread identifier in a shared instruction cache of the processor is used for identifying a hardware thread which corresponds to a cache line in the shared instruction cache; a private instruction cache is used for storing an instruction cache line substituted from the shared instruction cache; a missing cache is further provided. The method comprises the following steps: when the hardware thread of the processor acquires an instruction from the instruction cache, accessing the shared instruction cache in the instruction cache and the private instruction cache which corresponds to the hardware thread simultaneously; determining the existence of an instruction in the shared instruction cache and the private instruction cache which corresponds to the hardware thread, and acquiring the instruction from the shared instruction cache and the private instruction cache which corresponds to the hardware thread according to a judgment result. The embodiment of the invention is used for managing the instruction cache of the processor.

The invention relates to the technical field of video monitoring, and especially relates to an emergency photographing method for a car driving recorder. The emergency photographing method comprises the following steps: in the process of collecting data by the car driving recorder, judging whether an emergency signal is received, wherein the emergency signal comprises an emergency video signal generated by operating an emergency video key and an emergency photographing signal generated by operating an emergency photographing key; if the emergency signal is not received, storing the collected data to a first storage area; if the received emergency signal is the emergency video signal, triggering an emergency video recording function of the car driving recorder according to the emergency video signal, and storing the data collected by the car driving recorder within a preset time period to a second storage area; and if the received emergency signal is the emergency photographing signal,then triggering an emergency photographing function of the car driving recorder according to the emergency photographing signal, and storing pictures photographed by the car driving recorder to a third storage area. The invention further provides an emergency photographing system for the car driving recorder. The emergency photographing method for the car driving recorder provided by the inventionimproves the accuracy of emergency snapshot.

The invention discloses a pneumatic-type ultra high-speed precise seed metering device. According to the pneumatic-type ultra high-speed precise seed metering device, bionic leech sucking discs are fixedly arranged in seed sucking holes through hinged transmission mechanisms; bionic human fingerprint structures are fixedly arranged on the internal surfaces of the bionic leech sucking discs; a seedmetering disc shaft is movably connected with a seed metering device cover; a seed metering pipe is fixedly connected with one side of the seed metering device cover, and is arranged right below theseed sucking holes on a seed metering disc; a flexible extrusion wheel is movably connected with the seed metering device cover; a seed metering disc shaft gear is fixedly connected with the seed metering disc shaft; a flexible extrusion wheel shaft gear is fixedly connected with a flexible extrusion wheel shaft, and is designed to mesh the seed metering disc shaft gear; one end of a ventilating pipe is fixedly connected with a housing, and the other is fixedly connected with a sealed wind box; one side of the sealed wind box provided with the seed sucking holes is provided with a rubber windshielding board. The pneumatic-type ultra high-speed precise seed metering device is designed taking leech sucking discs and human fingerprint structures as bionic models, the bionic leech sucking discs and the bionic human fingerprint structures are designed, seed sucking efficiency is increased, seed clamping stability is increased, and the adaptability on seed difference is increased, seeds areloaded with small force, so that damage of seeds is not easily caused, and missing seeding rate of high-speed precise seed metering mechanisms is reduced.

The embodiment of the invention provides a mobile phone and an incoming call alert method thereof. The method comprises a detection step and a control execution step, wherein in the detection step, when the mobile phone has an incoming call, whether the mobile phone is shielded is detected, and a detection result is transmitted; and in the control execution step, the detection result is received, and if the detection result is yes, a mobile phone incoming call alert enhancing mode is used. According to the mobile phone and the incoming call alert method thereof provided by the embodiment of the invention, the probability that a phone call is missed because the mobile phone in a mute or vibration mode is put in a bag or pocket is lowered, and the user experience is improved.

The invention discloses a cache replacement method for configuration information of a high-speed reconfigurable processor, and a storage system structure, and the method comprises the steps: updatingan Re value of a hit data block according to a hit frequency when an access is hit, and enabling the Re value to be the priority of the replacement of the data block; and when the access is missing, updating the Re value of the data block replaced into the cache according to the hit frequency, and determining the replaced data block through a windowing selection algorithm. The cache replacement strategy is realized by changing the replaced priorities of the data blocks, so that the cache replacement strategy is convenient to transplant in the existing storage system, and the hardware overheadis low. According to the cache resource allocation method and the device, cache resource allocation is carried out according to the two characteristics of the size and the frequency of the configuration information, the overall missing rate of the cache is reduced instead of only considering the missing rate of a single cache group, and in addition, the cache resource allocation method and devicehave good adaptability to a working set larger than the cache capacity.

The invention relates to the technical field of safety, and provides a method for obtaining pictures via remote control. The method for obtaining the pictures via remote control includes steps: receiving a picture obtaining instruction including geographic information; searching a plurality of mobile terminal communication interfaces matched with the geographic information; broadcasting a snapshot instruction to the mobile terminal communication interfaces; and receiving a snapshot picture in response to the snapshot instruction. Correspondingly, the invention also provides a server employing the method. According to the method and the server, a movable mobile terminal is employed as camera equipment, the mobile terminal is controlled to obtain a target picture in a remote manner, illegal behaviors can be monitored in an omnibearing manner, illegal destruction is prevented, the construction cost of a monitoring system is reduced, the reliability is high, and the maintenance is facilitated.

The invention discloses a treatment method and system of extension telephone traffic in a virtual switchboard as well as a virtual switchboard server. The virtual switchboard server connected with an intelligent network comprises a user management unit, a calling control unit and a traffic control unit; when an incoming call calls a first extension telephone in a group, the traffic control unit controls the calling control unit to get through a talk channel between the incoming call and the first extension telephone; and when the incoming call needs to be forwarded to a second extension telephone in the group, the traffic control unit receives a forwarding command of the first extension telephone or the second extension telephone, acquires the information of the second extension telephone in the forwarding command through the user management unit and controls the calling control unit to forward the incoming call from the first extension telephone to the second extension telephone so as to realize the talk between the incoming call and the second extension telephone. The invention is more convenient and timely for the extension telephones in the group to forward and pick up without regional limitation.

The invention relates to a mobile warehouse tray combining operation method based on a handheld device. The method at least includes the following steps that first, bar code labels are printed by a label printing machine according to information of goods and materials to enter a storehouse; second, trays are provided with RFID labels, the RFID labels are scanned by the handheld device, and whether the trays are legal trays or not is inquired through a storehouse tray combining system; third, the goods and materials to be placed on the legal trays in the second step are scanned by the handheld device, and the parameter of the goods and materials and the parameter of the trays are compared through the storehouse tray combining system; fourth, the goods are stacked. The mobile warehouse tray combining operation method based on the handheld device has the advantages that the bar code labels and the RFID labels are scanned by the handheld device, and therefore the goods and materials and the trays can be bound both physically and logically; the bar code labels are scanned by the handheld device one by one, and therefore the reading rate of the goods and materials is 100 percent; the trays are combined through the handheld device, and therefore the storehouse can be managed conveniently, fast, flexibly and efficiently.

The invention relates to the technical field of computer hardware, in particular to a constant Cache capable of supporting pipeline operation. The constant Cache comprises a PLRU algorithm module 2, alabel control module 1, an FIFO module 3 and a memory module 4. The PLRU algorithm module 2 is used for generating a Cache block address to be updated according to historical access information of each Cache block and sending the Cache block address to the label control module 1; the label control module 1 is used for determining whether or not a current cache request is hit, and sending a judgment result to the PLRU algorithm module 2, and if the current cache request is hit, data mapped to the constant Cache by a memory is directly read from the memory module 4 and sent back to a request initiator; if the current cache request is not hit, a parameter address is buffered to the FIFO module 3, the data is written into the memory module 4 according to the Cache block address to be updatedafter the data is retrieved from the memory, the parameter address is read out from the FIFO module 3 and processing is conducted; the FIFO module 3 is used for storing a parameter address which is not hit; the memory module 4 is used for storing the data mapped to the constant Cache to wait for reading after the constant Cache is hit.

The invention discloses a test method and device for data cluster, and belongs to the field of data cluster. The method comprises the following steps: obtaining a test authority which is isolated with the authority of a data cluster processing service; obtaining test computing resources according to the computing resources used by the data cluster processing service; obtaining current network operation flow and current network result data of the service; carrying out reduction processing on the current network operation flow to obtain test service flow; according to the test computing resources and the test authority, executing corresponding operation of each service instruction in the test service flow to obtain test result data; and carrying out consistency comparison on the current network result data and test result data and outputting comparison results. According to the test method and device for data cluster, the production environment of data cluster is directly utilized to carry out test without building a test scene additionally, thereby reducing human input and cost; the production environment of data cluster is subjected to full coverage, thereby improving coverage degree, furthermore, improving test quality, and reducing test missing rate.

The invention discloses the field of man-machine interaction and automobile data recorders, and particularly relates to an automobile data recorder emergency shooting control method and device. The method includes the steps that a motion change state is determined by detecting data change through an acceleration sensor; a human pupil change state is determined through a preview image of a shooting unit; when the motion change state and the human pupil change state meet preset conditions, an automobile data recorder is controlled for shooting. Therefore, the automobile data recorder can be controlled for shooting according to the motion change state and the human pupil change state, the moment for snapshotting emergencies is accurate, the mistaken shooting rate and the missing shooting rate are reduced, emergency snapshotting accuracy is improved, storage space can be saved to a certain extent, frequency of operation of deleting useless video data in the storage space is reduced, and the intelligent degree of the automobile data recorder is improved.

The invention discloses a reverse flexible corn stalk picking device which comprises a rack, a device cover, an upper picking mechanism and a lower picking mechanism. In the working process, a picking shovel is put deeply to the lower portion of a lodging stalk to shovel the lodging stalk out, the upper picking mechanism rotates counterclockwise to poke the shoveled stalk to the position behind the device, and the stalk is conveyed to subsequent processes under the drive of a conveying rod. In the moving process of a horizontal picking mechanism, telescopic fingers located on picking plates in the horizontal direction fall perpendicularly under the action of gravity, so that picking rods on the left horizontal picking plates form the optimal picking combination, and picking rods on the right horizontal picking plates form the optimal picking disengaging combination. The tangential force exerted on the stalk in the horizontal direction is opposite to the work advancing direction, and therefore the relative picking speed of the stalk is improved. A longitudinal beam, a front arm, a rocker arm and a rear arm form a quadrangle mechanism, a flexible obstacle crossing function is achieved under the assistance of a spring, impact damage to the picking shovel by obstacles is effectively relieved, and the obstacle crossing capability and the work passing capability of the whole device are improved.

The invention provides a data processing method in coverage rate testing. The method comprises the steps of obtaining a difference text and a coverage rate text, relative to an old version, of a tested program, wherein the coverage rate text is output when the tested program is subjected to the coverage rate testing; extracting a file name and a changed line number from the difference text, and mapping the file name and the changed line number; and obtaining coverage rate text data related to difference codes, relative to the old version, of the tested program from the coverage rate text according to an obtained mapping relationship. In addition, the invention provides a data processing method in the coverage rate testing, matched with the method. According to the data processing method and apparatus in the coverage rate testing, the coverage rate testing can be performed for part of codes, so that the pertinence and accuracy of the coverage rate testing are improved.