Patents
Literature
Hiro is an intelligent assistant for R&D personnel, combined with Patent DNA, to facilitate innovative research.
Hiro

40results about How to "Reduce positioning time" patented technology

Quick positioning method based on wireless TOF and system thereof

The invention provides a quick positioning method based on wireless TOF and a system thereof. The method comprises the following steps of 1, broadcasting a ranging request to at least three base stations through a to-be-positioned label; 2, after each base station in the first step receives the ranging request, transmitting a response message to the label by the base stations according to a preset time sequence in a server; 3, after the label collects all response messages in the step 2, generating a final message through label gathering, and broadcasting the final message to each base station; 4, after each base station receives the final message, extracting corresponding time stamp data by each base station according to the respective ID, and calculating the distance between each base station and the label; and 5, calculating the position of the label by a server according to the distance between each base station and the label. The quick positioning method and the system thereof have advantages of realizing high-efficiency positioning, improving system capacity and reducing power consumption.
Owner:NANJING BAOHUA INTELLIGENT TECH CO LTD

WLAN (wireless local area network) positioning method and positioning server for positioning third part

The invention provides a WLAN (wireless local area network) positioning method and a positioning server for positioning a third part. The positioning server receives a positioning request launched by the third part, searching an MAC (media access control) address corresponding to a WLAN networking account of a terminal to be positioned, inquiring an IP (internet protocol) address corresponding to the WLAN networking account; inquiring the corresponding relation between the IP address and the MAC address of an AP (access point), acquiring an MAC address list of the AP; acquiring a list of WLAN terminals related to the AP currently in the MAC address list of the AP; searching the list of the WLAN terminals according the MAC address of the terminal to be positioned, and finding out the MAC address of the AP related to the terminal to be positioned, searching longitude and latitude of the MAC address of the AP according to the corresponding relation between the longitude and the latitude and the MAC address of the AP, and acquiring the position of the terminal to be positioned, wherein the MAC address list of the AP includes the MAC address of an AP into which the terminal to be positioned accesses. Positioning time length is reduced and operation complexity of positioning of the third part is reduced.
Owner:CHINA TELECOM CORP LTD

Method and device for determining position of access point

ActiveCN105323794APrecise positioningGet rid of the limitation of inaccurate descriptionWireless communicationIntersection of a polyhedron with a lineMobile location
The invention provides a method and device for determining the position of an access point, and the method comprises the steps: obtaining signal intensities detected by a plurality of network signal detection devices in a preset access point signal coverage at the same time; obtaining the distances from the network signal detection devices to a preset access point according to the signal intensities; constructing a plurality of spherical surfaces according to the distances, and obtaining the connection lines among intersection points of the plurality of spherical surfaces; obtaining detected signal intensities at the same time after the network signal detection devices moves along the connection lines; and determining the position of the preset access point according to the detected signal intensities after the network signal detection devices moves along the connection lines. The method carries out two-time simultaneous obtaining of the signal intensities of the preset access point through the plurality of network signal detection device, so as to determine the position of the access point. The method achieves the quick and accurate positioning of the access point, gets rid of the limits from the inaccurate description of marks and files of construction drawings, is less in positioning time, and improves work efficiency.
Owner:CHINA MOBILE COMM GRP CO LTD

Method and system for detecting road collision accident

The invention provides a method and system for detecting a road collision accident, and belongs to the technical field of intelligent traffic. The method includes the steps: generating a collision accident message after a collision accident detecting device detects a collision signal, and sending the collision accident message to a roadside communication node, wherein the collision accident message includes identification information corresponding to the collision accident detecting device; sending the collision accident message to a monitoring center through the roadside communication node; enabling the monitoring center to determine the location of a road segment where the collision accident occurs according to the identification information included in the collision accident message. The collision detection device detects the collision signal, and sends the identification information corresponding to the collision accident detecting device to the monitoring center through the roadside communication node, so that the monitoring center determines the location of the road where the collision accident occurs. The method can accurately and timely determine the location information ofthe traffic accident, and reduces positioning time.
Owner:北京中交华安科技有限公司

Fault positioning method and fault positioning device

The invention provides a fault positioning method and a fault positioning device, and relates to the field of semiconductors. The fault positioning method comprises the following steps: pre-judging a suspected fault area by using the layout of the fault IC carrier plate and an impedance test result, and then grinding the suspected fault area; and electrifying the ground fault IC carrier plate, carrying out thermal imaging on the electrified fault IC carrier plate, and obtaining a temperature abnormal area, wherein the temperature abnormal area is a leakage fault position. The fault positioning device comprises an impedance detection module, a grinding module, a power supply module and an infrared imaging module, the impedance detection module is used for detecting the impedance of the fault IC carrier plate, the grinding module is used for grinding a suspected fault area of the fault IC carrier plate, and the power supply module is used for electrifying the ground fault IC carrier plate. And the infrared imaging module is used for carrying out thermal imaging on the electrified fault IC carrier plate. The fault positioning method and the fault positioning device provided by the invention are accurate in positioning, high in success rate and short in time consumption.
Owner:深圳市美信咨询有限公司

Artificial swarm-based direct positioning method

The invention provides an artificial swarm-based direct positioning method. According to the method, an array antenna to receive a signal time domain model; a frequency domain observation model of a received signal is obtained; a target function is established to determine a fitness function; control parameters are initialized, a fitness value of each initial solution is calculated, neighborhood search is carried out by honey gathering bees to generate new solutions, and fitness values corresponding to the new solutions are calculated to carry out greed selection; selection probabilities related to the solutions are calculated, neighborhood search is carried out again to generate new solutions, and fitness values corresponding to the new solutions are calculated to carry out greed selection; judgement is carried out to determine whether a to-be-abandoned solution exits or not, of the judging result is positive, a new solution is generated to replace the to-be-abandoned solution and thenew solution is recorded; and finally, judgement is carried out to determine whether a termination condition is satisfied or not, if the judging result is positive, an optimum result is output, and otherwise, new solutions are continuously and repeatedly generated to replace the old solutions and subsequent steps are carried out. According to the method, an artificial swarm algorithm is introduced to solve the solving of non-linear optimization problems in direct positioning process, so that the operation resource consumption is decreased and the positioning time consumption is shortened.
Owner:HARBIN ENG UNIV

Data mining method and device, data processing method and device, storage medium and electronic equipment

The invention discloses a data mining method and device, a data processing method and device, a storage medium and electronic equipment, and the method comprises the steps: obtaining a second entity object information set meeting a selection requirement according to current first entity object information; wherein the current first entity object information and second entity object information in the second entity object information set are of a first entity type; analyzing address information corresponding to the second entity object information, and determining candidate entity unit structured information used for representing the address information; analyzing current address information corresponding to the current first entity object information, and determining current entity unit structured information used for representing the current address information; performing matching according to the current entity unit structured information and candidate entity unit structured information, and determining a first type of representation information used for describing the current first entity object information; therefore, rich data support is provided for the positioning scene, the positioning accuracy is improved, and the positioning time consumption is reduced.
Owner:RAJAX NETWORK &TECHNOLOGY (SHANGHAI) CO LTD

Guardrail climbing ladder generating device

The invention discloses a guardrail climbing ladder generating device. The guardrail climbing ladder generating device includes a long ladder feeding mechanism, a handrail feeding mechanism, a clamping mechanism and a fence feeding mechanism. The long ladder feeding mechanism is fixedly installed on the ground, a storage mechanism is arranged in the long ladder feeding mechanism, a long ladder canbe fed to the position to be welded according to the specified size under the drive of a motor, the handrail feeding mechanism is fixedly arranged on the ground, a storage mechanism is arranged in the handrail feeding mechanism, a handrail can be fed to the position to be welded according to the specified size under the drive of the motor, positioning and clamping functions are achieved, the clamping mechanism is fixedly installed on the handrail feeding mechanism and plays a role of clamping parts to be welded before welding, the fence feeding mechanism is fixedly installed on the long ladder feeding mechanism, a storage mechanism is arranged in the fence feeding mechanism, and the long ladder can be fed to the position to be welded according to the specified size under the drive of themotor. The guardrail climbing ladder generating device has the advantages of automatic feeding, automatic positioning, automatic clamping, the ability to change the size at will and the like.
Owner:重庆仟亿金属制品有限公司

Positioning method for performance fault of distributed database

The invention provides a positioning method for a performance fault of a distributed database. The positioning method comprises the following steps: acquiring an SQL sentence sent by a user, and positioning the SQL sentence; searching problem nodes with the performance fault from nodes of the distributed database; comparing the SQL sentence execution plans of the problem nodes and the non-problem nodes; searching and determining the resource use conditions of the problem nodes; determining whether all problem nodes are positioned; and examining and correcting the performance of a coordinator. With the adoption of the method, the time of positioning the fault under the distributed database environment can be greatly reduced; the performance fault can be effectively, accurately and reliably positioned, so that the maintenance time and cost can be reduced, and the running stability of the distributed database can be improved.
Owner:长安通信科技有限责任公司 +1

Novel intelligent plastic manufacturing and production device

The invention discloses a novel intelligent plastic manufacturing and production device. The novel intelligent plastic manufacturing and production device comprises a carrying plate. A bottom plate isarranged in the middle of the upper surface of the carrying plate, a round table is fixedly arranged on the top of the bottom plate, a supporting rod is fixedly arranged in the middle of the lower surface of the bottom plate, a gear b is fixedly arranged in the middle of the supporting rod, a rotary rod is arranged on the left side of the gear b, the rotary rod penetrates through the carrying plate, and the rotary rod and the supporting rod are rotationally connected with the lower surface and the upper surface of the carrying plate through two sets of bearings correspondingly. Gears a and the gear b are mounted, a pedal is pressed with a foot, a sliding block of the pedal is driven to move in a guide rail left and right, the sliding block drives a rack to move, the rack drives the two sets of gears a of the rotary rod to rotate, the gears a drive the gear b of the supporting rod to rotate, a plastic drum workpiece on the round table on the top of the bottom plate rotates, the mannerthat currently, the plastic drum is rotated with one hand and paint is brushed or sprayed with the other hand is replaced, double-hand simultaneous painting work is achieved, the painting working efficiency is improved, and the novel intelligent plastic manufacturing and production device is suitable for being widely used and popularized.
Owner:苏州吉玛自动化科技有限公司

A method and device for determining the location of an access point

ActiveCN105323794BPrecise positioningGet rid of the limitation of inaccurate descriptionWireless communicationIntersection of a polyhedron with a lineMobile location
The invention provides a method and device for determining the position of an access point, and the method comprises the steps: obtaining signal intensities detected by a plurality of network signal detection devices in a preset access point signal coverage at the same time; obtaining the distances from the network signal detection devices to a preset access point according to the signal intensities; constructing a plurality of spherical surfaces according to the distances, and obtaining the connection lines among intersection points of the plurality of spherical surfaces; obtaining detected signal intensities at the same time after the network signal detection devices moves along the connection lines; and determining the position of the preset access point according to the detected signal intensities after the network signal detection devices moves along the connection lines. The method carries out two-time simultaneous obtaining of the signal intensities of the preset access point through the plurality of network signal detection device, so as to determine the position of the access point. The method achieves the quick and accurate positioning of the access point, gets rid of the limits from the inaccurate description of marks and files of construction drawings, is less in positioning time, and improves work efficiency.
Owner:CHINA MOBILE COMM GRP CO LTD

WLAN positioning method and positioning server for realizing third-party positioning

The invention provides a WLAN (wireless local area network) positioning method and a positioning server for positioning a third part. The positioning server receives a positioning request launched by the third part, searching an MAC (media access control) address corresponding to a WLAN networking account of a terminal to be positioned, inquiring an IP (internet protocol) address corresponding to the WLAN networking account; inquiring the corresponding relation between the IP address and the MAC address of an AP (access point), acquiring an MAC address list of the AP; acquiring a list of WLAN terminals related to the AP currently in the MAC address list of the AP; searching the list of the WLAN terminals according the MAC address of the terminal to be positioned, and finding out the MAC address of the AP related to the terminal to be positioned, searching longitude and latitude of the MAC address of the AP according to the corresponding relation between the longitude and the latitude and the MAC address of the AP, and acquiring the position of the terminal to be positioned, wherein the MAC address list of the AP includes the MAC address of an AP into which the terminal to be positioned accesses. Positioning time length is reduced and operation complexity of positioning of the third part is reduced.
Owner:CHINA TELECOM CORP LTD

Positioning method and electronic device

The invention discloses a positioning method. The positioning method comprises the following steps of receiving first information which is sent by a first electronic device and generated by a second electronic device, wherein the first information is not smaller than a first threshold value number and is not shorter than the time of a second threshold value; receiving second information transmitted by the second electronic device in real time, wherein the second information is not smaller than the first threshold value number; the state that the duration for receiving the second information reaches the duration of a third threshold value, calculating the duration generated for receiving the second information of the second electronic device, wherein the second information is not smaller than the first threshold value number; according to the duration, calculating the distance from the second electronic device which is not smaller than the first threshold value number; when the number of the distance of the second electronic device which is calculated is confirmed to be not smaller than the first threshold value number, transmitting the distance which is not smaller than the first threshold value number and is calculated to the first electronic device; receiving the distance which is sent by the first electronic device and is not smaller than the first threshold value number to determine position information of electronic equipment. The invention also discloses the electronic equipment. According to the positioning method and the electronic equipment provided by the embodiment of the invention, the positioning speed is increased, and the positioning duration is reduced.
Owner:LENOVO (BEIJING) LTD

Positioning method for mounting cutting roller tooth holders through tooth holder robot

The invention relates to a positioning method for mounting cutting roller tooth holders through a tooth holder robot and aims to solve the technical problems that the mounting error is great and the cutting head production accuracy cannot meet the design requirement in the existing cutting roller tooth holder mounting method. The technical scheme adopted by the invention is as follows: the positioning method for mounting the cutting roller tooth holders through the tooth holder robot comprises the following steps: (1) mounting a tooth holder to be positioned on a tooth holder mounting frame and enabling the tooth holder robot to start executing a positioning program; (2) a rotary positioning mechanism completing a first space orientating action and a first space positioning action of the tooth holder to be positioned; (3) when the actions in the step (2) are performed through a rotating disc, and the tooth holder positioning robot completing a second positioning action, a third space positioning action, a second space orientating action and a third space orientating action of the tooth holder to be positioned; and (4) when approaching to the target position, a horizontal linear guide rail moving to a target position at a low speed and finally completing the third space positioning action of the tooth holder.
Owner:山西能源学院

Chip heat dissipation structure

The invention relates to the technical field of chip heat dissipation, in particular to a chip heat dissipation structure. The heat dissipation structure comprises a base body and a chip, the base body comprises an upper base body and a lower base body, the upper base body and the lower base body are connected through a first screw, an insulating heat conduction gasket is arranged between the upper base body and the lower base body, heat dissipation fins are arranged on the lower base body, and the chip is fixed to the upper surface of the upper base body through a second screw. A heat conduction layer is packed between the chip and the upper surface of the upper substrate, and the first screw and the second screw are each provided with an insulating sleeve. The contact area of the chip and the heat conduction layer is set to be A1, the contact area of the upper base body and the insulating heat conduction gasket is set to be A2, the heat conduction coefficient of the heat conduction layer is set to be K1, the heat conduction coefficient of the insulating heat conduction gasket is set to be K2, and the value of A2:A1 is larger than 1 and smaller than 2K1/K2. The comprehensive heatdissipation effect of a radiator can be reasonably improved.
Owner:四川长虹空调有限公司
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Try Eureka
PatSnap group products