67results about How to "Unable to locate" patented technology

The invention relates to a software analysis method belonging to the technical field of computers, and particularly relates to a software fault analysis method based on multi-sample difference comparison. The method comprises the steps as follows: (1) executing disassemble and dynamic instrumentation of an analyzed program; (2) tracking and recording an execution instruction flow of a program to be analyzed and constructing control flow graphs of the program, which take a basic block as the minimum unit; and (3) selecting a data processing access point as a comparison basic point, constructing a multi-sample difference tree model, executing comparison of control flow graphs of multiple samples which are divided into several groups, wherein each group consists of two samples, finding out a key instruction flow branch point, and acquiring a key path from a false data input point to each difference point. The software fault analysis method, provided by the invention, effectively solves the problem that a dual-sample difference comparison method cannot achieve positioning of complex faults, thereby remarkably improving analysis efficiency of software faults.

The invention belongs to the technical field of wireless sensor positioning, and discloses a joint centroid positioning method suitable for wireless sensor network node positioning based on error correction to solve the problems that according to an existing distribution type sensor positioning method, the precision of the obtained position coordinate information is not high, the calculation quantity is large, the power consumption of nodes is large, calculation complexity is high, the positioning range is small, the positioning precision of unknown nodes in the area where the number of anchor nodes is small is poor, and even some edge nodes cannot be positioned. The method comprises the steps that part of the unknown nodes in the anchor nodes are positioned through the existing anchor nodes in the wireless sensor network, secondary positioning is carried out according to the centroid positioning algorithm, position information is corrected through the error probability distribution, and high-precision positioning of the unknown nodes in an anchor node poor area is achieved. The joint centroid positioning method is suitable for underwater sensor positioning and specific application scenes such as forest fireproofing.

The invention discloses a windmill flexible positioning device for a white car body welding production line. The windmill flexible positioning device for the white car body welding production line comprises a rotary table rack, wherein a vertically arranged and rotatable windmill rotary plate is arranged on one side of the rotary table rack; a drive device for driving the windmill rotary plate torotate is arranged on the rotary table rack; multiple positioning stations arranged uniformly are arranged on a plate body of the windmill rotary plate; detachable positioning mechanisms for clampingworkpieces are arranged on the positioning stations; a station switching mechanism for controlling a rotation position of the windmill rotary plate is arranged between the windmill rotary plate and the rotary table rack; and an automatic emergency stop mechanism is arranged between the rotary table rack and the windmill rotary plate. The windmill flexible positioning device for the white car bodywelding production line provided by the invention is simple in structure, easy to maintain, low in cost, easy to control, good in universality, and capable of being adaptable to flexible positioning of multiple platform multi-car switching.

The embodiment of the invention provides a target tracking method, device and system and electronic equipment. The method comprises the steps of acquiring position information of a moving target recognized from a current frame image of each collection equipment ; when the monitoring areas of every two adjacent collection equipment are overlapped, determining whether first target position information and second target position information meeting a preset edge transmission rule exist or not from the first position information and the second position information for every two adjacent collectionequipment; and if so, determining the moving target at the first target position information and the moving target at the second target position information as the same moving target. Therefore, a moving target in a scene can be positioned and tracked more effectively.

The invention provides a vehicle positioning method and device and a terminal which enable a vehicle to determine a current location without a GPS or on the condition of GPS failure. The vehicle positioning method comprises the steps that a to-be-positioned vehicle sends positioning request information; the to-be-positioned vehicle receives real-time information of other vehicles via a car networking system; the to-be-positioned vehicle determines a current location according to the real-time information of other vehicles. The vehicle positioning device comprises a sending module through whicha to-be-positioned vehicle can send positioning request information, a receiving module through which the to-be-positioned vehicle can receive real-time information of other vehicles via a car networking system, and a positioning module through which the to-be-positioned vehicle can determine a current location according to the real-time information of other vehicles.

The present invention relates to the technical field of wireless location, especially to a UWB (Ultra-Wide-Band) location method based on micro inertial navigation. The method comprises the steps of:obtaining micro inertial navigation location data; obtaining UWB location data; calculating coordinate transformation parameters of the micro inertial navigation coordinate system being switched to aUWB coordinate system; performing coordinate transformation of the UWB location data to obtain position data of the micro inertial navigation location data in the UWB coordinate system; determining whether there are UWB communication signals or not; if yes, performing coordinate fusion of the UWB location data and Z-axis coordinates of the micro inertial navigation coordinate system to output fusion location information in the UWB coordinate system and obtain micro inertial navigation correction parameters; otherwise, calculating and outputting the micro inertial navigation location data in the UWB coordinate system according to the micro inertial navigation correction parameters obtained through calculation at the last time. The present invention further discloses a UWB location device and system based on micro inertial navigation. The method provided by the invention solves the problem that the UWB location coverage signals cannot perform location in a blind area condition so as to improve the location precision.

The embodiment of the invention provides a herding livestock positioning system and a herding livestock positioning method. The herding livestock positioning system comprises a plurality of relay modules and a control module; each piece of livestock corresponds to one relay module; for any one of the relay modules, any one of the relay modules is used for acquiring position information of the livestock corresponding to any one of the relay modules; and the control module is used for acquiring the position information of each piece of livestock through narrow band internet of things and positioning each piece of livestock. According to the herding livestock positioning system and the herding livestock positioning method, which are provided by the embodiment of the invention, and through a narrow band internet of things technology, signal transmission stability and accuracy are guaranteed, the problem that the livestock cannot be positioned when the distance among the livestock is too far is solved and the operation time of a terminal is prolonged; moreover, through collection of herding livestock position information, temperature and step number, the use condition of a grassland canbe analyzed through livestock motion trails, the grassland resources can be distributed reasonably, the body condition of the animals can be monitored through temperature data, a monitor can be reminded at once when the temperature exceeds a certain numerical value, and the aim of warning in advance is achieved.

The invention discloses a positioning method of LTE MR data. The method comprises the following steps: acquiring relevant information of a main service cell and relevant attributes of adjacent cells according to the acquired MR data and base station engineering parameters; performing indoor dispersion and positioning on sampling point data if the main service cell is an indoor sub-cell, or else performing MR data auxiliary positioning based on the adjacent cells according to adjacent cell conditions of the sampling point data. The method is high in practical operability. A plurality of methodsare combined, so that the problem that a large amount of MR data cannot be positioned due to field loss in the traditional method can be solved. The positioning analysis is carried out according to the received signal power, the transmitting power and the wireless signal propagation model in the MR data, and the precision of MR positioning is improved in combination with adjacent cell auxiliary positioning.

The invention provides a helmet based on tactical command. The helmet comprises a helmet main body, a mounting base, a support assembly, a driving unit and a radar. The helmet body is detachably arranged on the head of a user in a sleeving mode, the mounting base is arranged on the front end face and/or the top and/or the side face of the surface of the helmet body, and the support assembly is fixedly mounted on the mounting base of the helmet body. The radar is fixedly connected with the end part of the support assembly. A transmission shaft of the driving unit is connected with the radar andfixedly installed on one side of the radar. Through the radar capable of being installed at multiple positions, multi-directional position detection can be achieved, a user does not need to hold theradar by hand for operation, and great convenience is achieved. Meanwhile, the invention further provides a map drawing and positioning system used on the helmet, information of the control unit, theradar and the remote client can be transmitted under wireless connection, the positioning accuracy of combat personnel in a complex environment and the map construction accuracy of a battlefield environment are improved, and potential safety hazards in the battlefield environment are reduced.

The invention relates to probe device locations which can conveniently assemble, locate each probe for the probe device without damaging its structure. The locations has many the first opening with throughout shape each of which at least one the second opening is set around. Each the second opening extends outward from each the fist opening wall surface.

The invention relates to the technical field of steel rail milling devices, and especially relates to an adaptive following device for steel rail milling device lateral positioning. The adaptive following device comprises a base, a lever positioning device, a lever reset device, a lever adjusting device, and a sensing device. The lever positioning device includes a lever and a positioning alloy block. The lever reset device includes a reset spring and a reset pin. The lever adjusting device includes a cylinder. The sensing device includes a linear displacement sensor and a sensor fixing seat. With the adaptive following device, the problem that the traditional lateral positioning device cannot perform positioning normally when a steel rail has a seriously flat or turned-down edge is solved. The device adapts to different steel rail specifications and different steel rail connections. Under the condition that a steel rail has a seriously flat or turned-down edge, precision lateral positioning of a milling device can be realized during steel rail milling.

The invention discloses a vehicle-mounted GPS device. The vehicle-mounted GPS device comprises a first GPS unit, a second GPS unit and a control unit. The first GPS unit and the second GPS unit are each composed of a GPS module and a communication module, and the control unit is used for starting the second GPS unit when the first GPS unit stops working. The vehicle-mounted GPS device achieves the technical effects of a reasonable structural design, diverse functions, strong communication signals and a good positioning effect, and can still play a role in positioning after being detached.

The invention discloses a CLEAN based passive positioning method for multiple non-cooperative emission sources. According to the invention, a mesh search method is adopted to directly estimate the position of an emission source from the receiver measurement and then the CLEAN method is applied to delete the information of the emission source from the measurement vectors based on the estimated position of the emission source, followed by the positioning of the next emission source. With the method, it can effectively resolve the problem that a weak emission source with low energy cannot be positioned for the mutual interference among a plurality of emission sources. Therefore, effective positioning of a plurality of emission sources can be achieved. The method can be directly applied to the positioning of a plurality of non-cooperative emission sources of existing passive radar and has great prospects of applications.

The invention relates to user equipment and electronic equipment in a wireless communication system, a method and a storage medium. The user equipment in the wireless communication system provided bythe invention comprises one or more processing circuits, wherein the processing circuits are configured to execute the following operations: acquiring a downlink signal from an electronic equipment inthe wireless communication system; and estimating an angle of arrival (AOA) of the downlink signal, wherein at least the AOA and a position of the electronic equipment are used for estimating a position of the user equipment. By using the user equipment and the electronic equipment in the wireless communication system, the method and the storage medium, the AOA of the downlink signal can be estimated when the user equipment is in an idle or initial access state, and the AOA can be used for estimating the position of the user equipment, thereby solving the problem that the user equipment cannot be positioned in idle and like states.

The invention discloses a hollow-structure rubber and fabric composite sealing element and a forming method thereof. According to the basic idea of the method, according to the section structure of the to-be-formed sealing element, the lower part of a hollow structure is used as a boundary, and a product upper half part mold and a product lower half part mold are designed for vulcanizing and forming a product upper half part and a product lower half part; and then the product upper half part and the product lower half part are integrally vulcanized and molded to form a hollow end-to-end closedstructure. According to the method, integral vulcanization and forming are adopted, the working surface of the sealing element is not in butt joint or lap joint, and the appearance quality is good; according to the method, a product is divided into the two parts to be formed respectively, the mold filling operation process is simplified, and the problem that a mold core cannot be taken out afterthe product is formed is solved; and according to the method, the problem that the hollow closed sealing element mold core cannot be positioned is solved, and the produced sealing element is uniform and controllable in size.

The invention discloses a positioning device for a zip-top can cover. The positioning device comprises a belt device, image scanning devices, rotating sucking mechanisms, a synchronizing device, a transmission shaft, a cam device, a fixing plate, reset devices and a controller; a plurality of first through holes are formed in the belt device and the belt device is used for placing a zip-top can cover; the fixing plate is arranged below the belt device; the rotating sucking mechanisms are fixedly arranged below the fixing plate, and the rotating sucking mechanisms are used for sucking and rotating the zip-top can cover; the image scanning devices comprises cameras, and the cameras are arranged above the belt devices and used for scanning the pattern mark on the zip-top can cover; the synchronous device drives the cam device through the transmission shaft, and the cam device drives the fixing plate to perform up-and-down reciprocating motion; the image scanning devices and the rotating sucking mechanisms are connected to the controller; and the reset devices are arranged at the two ends of the fixing plate. The invention further provides a system for manufacturing the zip-top can cover and a using method for the positioning device for the zip-top can cover.

The invention discloses a power cable partial discharge positioning system based on a solenoid high-voltage wire and a detection method thereof. The system comprises a damping oscillation wave deviceand the solenoid high-voltage wire, wherein a high-voltage source output end of the damping oscillation wave device is connected with the solenoid high-voltage wire, and the other end of the solenoidhigh-voltage wire is connected with the near end of a to-be-tested cable, wherein quick connectors are adopted during connection. A blind area positioning detection process comprises the following steps of when an oscillation wave test of a distribution network cable is carried out, inserting a section of solenoid high-voltage wire without local discharge between an oscillation wave host machine and the to-be-detected cable as an auxiliary positioning device, identifying a direct pulse and a reflected pulse, and judging discharge positions according to the waveform characteristics. The deviceand the method can be matched with different types of distribution network cable damping oscillation wave equipment of different manufacturers under the condition that accessories and field workload are increased at the minimum limit, and partial discharge sources positioned at a near-end terminal and a far-end terminal can be quickly and accurately distinguished.

The invention discloses a positioning fixture for medium and low speed maglev track J III telescopic joint installation. The fixture comprises a main frame, a longitudinal adjustment mechanism, a transverse adjustment mechanism and a height adjustment mechanism, wherein the longitudinal adjustment mechanism, the transverse adjustment mechanism and the height adjustment mechanism are used for installation position adjustment of J III telescopic joint installation bases. Prisms matched with a total station are arranged on the main frame; the transverse adjustment mechanism comprises a transverse adjustment frame and a first lead screw moving mechanism used for driving the transverse adjustment frame to move transversely; the longitudinal adjustment mechanism comprises a longitudinal adjustment frame and a second lead screw moving mechanism used for driving the longitudinal adjustment frame to move longitudinally; positioning steel plates used for positioning the installation position of the J III telescopic joint installation bases are arranged below the main frame. By means of the positioning fixture, the problem that the J III telescopic joint installation bases cannot be positioned can be solved, and the positioning accuracy of the four J III telescopic joint installation bases is guaranteed, so that positioning installation of a J III telescopic joint is achieved, the positioning accuracy is high, the error is small, and the installation progress of the J III telescopic joint is accelerated.

The invention relates to a local area positioning method and system. The method comprises the steps of: receiving a positioning signal transmitted by a sensor deployed in a local area to be positioned according to a data receiving port preset on a designated webpage; locking the local area according to the positioning signal and acquiring sample data in the locked local area; drawing a local area map based on the sample data, and marking map coordinates in the local area map according to the image size of the local area map; according to a position fingerprint positioning algorithm, calculating the actual positions of various coordinates for the sample data and positioning signals, inputting a calculation result into the map coordinates corresponding to the local area map to generate an actual map of the local area. The method and system can lock the target local area through the deployed sensor, and calculate the actual position in the drawn local area map to obtain the actual map of the local area, and solve positioning incapability in the local area environment where the satellite and other positioning signals cannot be received.

The invention discloses a file positioning and storing method and device for a trunking system. The method comprises the steps of receiving an object file positioning instruction sent by a client terminal, wherein the object file positioning instruction contains the path information of an object file to be positioned; calculating the characteristic value of the object file to be positioned according to the path information; determining a value interval mapped by a memory address where the object file to be positioned is located according to the characteristic value; determining a first cluster node where the object file to be positioned is located according to the value interval mapped by the memory address; judging whether the first cluster node can conduct normal communication; determining that the object file to be positioned is located on the first cluster node if so. In this way, the problem of the prior art that cluster positioning can not be achieved when a master server breaks down is solved, the usability of the trunking system is improved, and then the technical effect of positioning a file accurately is realized.

The invention relates to a method and a system for positioning a femtocell by using a secure user plane location (SUPL) platform, which are used for positioning the femtocell by applying the SUPL platform and a network system supporting the SUPL platform. The method comprises the following steps of: starting an SUPL program for establishing communication with the SUPL platform in the femtocell, acquiring auxiliary positioning information and approximate position information through the SUPL platform, and calculating the auxiliary positioning information to acquire accurate position information to replace the approximate position information when related satellite signals captured by the femtocell are enough for the femtocell to perform positioning calculation; and providing the position information acquired after positioning is finished for a mobile communication core network when the femtocell is registered, or broadcasting the position information to mobile communication network users in a communication range covered by the femtocell.