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

38results about How to "Reduce the scope of the search" patented technology

Multichannel human-computer interaction method based on voice and gestures

The invention discloses a multichannel human-computer interaction method based on voice and gestures, comprising the following steps of: extracting voice referent constraint information from voice information and extracting gesture referent constraint information from gesture information, wherein the gesture referent constraint information comprises a statistical value of distance from any point in a referring point region limited by the current referring point gesture to a referring center of the referring point gesture and the statistical value of time maintained by the referring point gesture; when the gesture referent constraint information is analyzed, acquiring the statistical value of the distance and the statistical value of the time maintained by the referring point gesture so as to lower the fuzziness of a referring point in three-dimensional interaction; and in the referent determining process, dividing a model object in a virtual environment into four types, and comparing the referent with a certain type of model object according to the possibility of the referent appearing in a certain type so as to be beneficial to the reduction of a finding range of the referent and the influence of the fuzziness of the referring point.
Owner:BEIHANG UNIV

Mobile terminal, and method and device for seeking mobile terminal

The invention discloses a mobile terminal, and a method and a device for seeking the mobile terminal, and belongs to the technical field of communication. The method for seeking the mobile terminal includes flow paths: sending an appointed communication signal trigger instruction to the mobile terminal through the device for seeking the mobile terminal so as to enable the mobile terminal to start at lease one type of communication signal; seeking the communication signal started by the mobile terminal; when the communication signal of the mobile terminal is sought, judging whether the communication signal is a unique communication signal sent by the mobile terminal; if the communication signal is the unique communication signal, using the communication signal to build communication connection between the device for seeking the mobile terminal and the mobile terminal, and if the communication signal is not the unique communication signal, building communication connection between the device for seeking the mobile terminal and the mobile terminal by selecting a communication signal shortest in effective distance; sending an indication signal to a user, and guiding the user to move towards the mobile terminal. By using the mobile terminal, and the method and the device for seeking the mobile terminal, the device for seeking the mobile terminal can switch between all the communication signals according to the distance between the device for seeking the mobile terminal and the mobile terminal, and the mobile terminal can be sought out whether the distance between the mobile terminal and the user is long or short.
Owner:NUBIA TECHNOLOGY CO LTD

Method for assisting double-antenna measuring unit in determining integer ambiguity and heading by gyroscope

The invention provides a method for assisting a double-antenna measuring unit in determining integer ambiguity and heading by a gyroscope. In the process of determining the integer ambiguity through carrier phase double-differenced measurement, the searching range of the integer ambiguity can be reduced by utilizing rough heading assistance provided by the gyroscope, the ambiguity can be solved by using one epoch, and the real-time heading of a motion carrier can be solved. The method comprises the following steps: firstly, the double-antenna measuring unit searches and solves to obtain an initial precise heading, and the initial precise heading is input to the gyroscope after being successfully solved; the gyroscope receives an initial precise heading value solved by the double-antenna measuring unit, and integrals are calculated through a measured angular velocity to obtain a heading estimation value after several periods of time; and the double-antenna measuring unit acquires the heading estimation value from the gyroscope at an epoch in which heading solving requires to be carried out, and the heading estimation value is utilized to assist the solving of the integer ambiguity and the heading.
Owner:OLINKSTAR CORP

Retrieving apparatus and method for unmanned aerial vehicle

The invention provides a retrieving apparatus and method for an unmanned aerial vehicle, belonging to the field of unmanned aerial vehicles. The retrieving method for the unmanned aerial vehicle comprises the following steps: acquiring the flight position information of the unmanned aerial vehicle via a wireless network at regular time and storing the flight position information; reading the latest stored position information of the unmanned aerial vehicle after receiving a request for retrieving the unmanned aerial vehicle; positioning the location of the unmanned aerial vehicle according to the position information; acquiring the position information of an operator and determining the location information of the unmanned aerial vehicle relative to the operator according to the position information of the operator and the position information of the unmanned aerial vehicle; and outputting the location information of the unmanned aerial vehicle relative to the operator. According to the method, the position information of the unmanned aerial vehicle in flight is recorded; on the circumstance that the unmanned aerial vehicle is lost, a location range where the unmanned aerial vehicle lands or falls can be positioned according to the latest stored position information of the unmanned aerial vehicle, and the location of the unmanned aerial vehicle relative to the operator is output; thus, a searching range can be reduced, rapid retrieving of the unmanned aerial vehicle can be realized, and economic loss can be decreased.
Owner:SZ DJI TECH CO LTD

Aircraft positioning method and mobile terminal

The embodiment of the invention discloses an aircraft positioning method and an aircraft positioning device. The aircraft positioning method comprises the following steps: when a mobile terminal detects that communication between the mobile terminal with an aircraft fails, acquiring state parameter information which is transmitted for the last time before communication failure from the aircraft bythe mobile terminal, wherein the state parameter information comprises height information, speed information and first position information of the aircraft; according to the height information and the speed information, confirming first distance information by the mobile terminal; according to the first distance information and the first position information, confirming second position information of the aircraft, wherein the second position information is used for representing the position of a landing point of the aircraft. By adopting the scheme of the embodiment of the invention, the position of the landing point of the aircraft is accurately confirmed by the mobile terminal according to the state parameter information transmitted for the last time from the aircraft before communication failure, so that the search range of a user is reduced, and the success rate that the aircraft is found by the user is increased.
Owner:SHENZHEN AUTEL INTELLIGENT AVIATION TECH CO LTD

Tracking anti-theft system, tracking anti-theft method and gateway tag

The invention relates to a tracking anti-theft system comprising a data service platform, a gateway tag which can be carried in a vehicle, and an anti-theft tag mounted on the vehicle or another object. When the power of the gateway tag is greater than a preset value or is in a charging state, a wireless radio frequency signal sent by the anti-theft tag can be received. Whether a unique identifier(UID) of the anti-theft tag is in a stolen-object database is judged. If the UID of the anti-theft tag is in the stolen-object database, a current location of a device is calculated, and data comprising current location information and the UID of the anti-theft tag is sent to the data service platform. The data service platform determines an approximate location range of a stolen object based onthe location information and a signal covering range of the gateway tag. The tracking anti-theft system has the advantage of making up for the deficiency that an existing fixed gateway has signal blank areas and can not judge whether the stolen vehicle is in the signal blank areas. The gateway tag is capable of detecting a wireless signal of the stolen vehicle and location information of an uploading device when passing through the signal blank areas of the existing fixed gateway.
Owner:ZHEJIANG TENDENCY TECH

Auxiliary equipment for detecting compactness of transformer iron core

ActiveCN113588252ASolve the problem of easy skew and offset and increase measurement errorReduce mistakesHybrid vehiclesMachine part testingTransformerStructural engineering
The invention belongs to the field of transformers, and particularly relates to an auxiliary equipment for detecting the compactness of a transformer iron core, which comprises a base, the outer surface of the right side of the base is rotationally connected with a detection mechanism, and a display mechanism is arranged on the left side of the detection mechanism. According to the auxiliary equipment for detecting the compactness of the transformer iron core, by arranging the bottom plate and the top plate, when the equipment is used, the iron core of the transformer is placed in a gap between the top plate and the bottom plate, and the iron core of the transformer is mostly an EI iron core and can be exactly clamped in the EI-shaped clamping grooves in the bottom plate and the top plate, so that in the process of gradually stacking the iron core upwards, the base plate moves along with the iron cores, it is guaranteed that the iron cores cannot incline or deviate in the vertical direction, a set of iron cores are perpendicular to the upper surface of the base all the time, errors during detection are reduced, and the problems that when traditional clamping equipment fixes the iron cores, loose iron cores are prone to skew and deviate, and measurement errors are increased are solved.
Owner:南通皓为电力科技有限公司

Multichannel human-computer interaction method based on voice and gestures

ActiveCN102339129BResolving pointing ambiguityReduced pointing ambiguityInput/output for user-computer interactionGraph readingHuman system interactionSpeech sound
The invention discloses a multichannel human-computer interaction method based on voice and gestures, comprising the following steps of: extracting voice referent constraint information from voice information and extracting gesture referent constraint information from gesture information, wherein the gesture referent constraint information comprises a statistical value of distance from any point in a referring point region limited by the current referring point gesture to a referring center of the referring point gesture and the statistical value of time maintained by the referring point gesture; when the gesture referent constraint information is analyzed, acquiring the statistical value of the distance and the statistical value of the time maintained by the referring point gesture so as to lower the fuzziness of a referring point in three-dimensional interaction; and in the referent determining process, dividing a model object in a virtual environment into four types, and comparing the referent with a certain type of model object according to the possibility of the referent appearing in a certain type so as to be beneficial to the reduction of a finding range of the referent and the influence of the fuzziness of the referring point.
Owner:BEIHANG UNIV
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