83results about "Satellite radio beaconing" patented technology

An earpiece includes an earpiece housing, a processor disposed within the earpiece housing, a gesture based interface operatively connected to the processor and configured to detect changes in an energy field associated with user gestures, and at least one sensor operatively connected to the processor for determining positioning of the ear piece. The processor is configured to interpret the changes in the energy field to determine the user gestures. The processor is configured to activate the ear piece based on the positioning of the ear piece.

A method and system for determining a location of a vehicle, the method comprises determining reception location data within a first cell of a work area for a vehicle. A reception quality estimator estimates reception quality data for the corresponding reception location data for the first cell. Optical location data is determined within a first cell of a work area for a vehicle. An optical quality estimator estimates optical quality data for the corresponding optical location data for the first cell. A data processor selects at least one of the reception location data and the optical location data as refined location data associated with the first cell based on the estimated reception quality data and estimated optical quality data.

The invention comprises a method of locating a vehicle, comprising: a) connecting a removable locator device to the vehicle, said locator device automatically noting when it has been connected to the vehicle and then using locating technology to retrieve, at regular intervals, location coordinates for the current location of said locator device, said location coordinates approximating the location of the vehicle; b) sensing a loss of connection between the locator device and the vehicle; c) automatically storing, as a waypoint on the locator device, the last location coordinates retrieved prior to sensing said loss of connection; and, d) removing the locator device from the vehicle to enable use of the locator device to return to the stored waypoint, wherein the stored waypoint represents the approximate location of the vehicle.

The invention discloses a picture navigation method and corresponding picture navigation equipment and picture navigation system. The picture navigation method comprises the following steps of: acquiring pictures with position information; selecting one picture, and using the corresponding position information of the picture as a navigation destination; determining starting position information; and determining a navigation route according to the corresponding position information of the picture and the starting position information. The picture navigation method disclosed by the invention has the advantages that the position information of a picture shooting site can be automatically obtained after acquiring the picture with the position information and selecting one picture, then the navigation route between the picture shooting site and the starting position is obtained by utilizing the corresponding position information, so that convenient and fast effects are achieved, and the entertainment is strong.

A digital mapping display and related system for fishing, and other applications.

The invention discloses a signal detection and judgment method and device in the capture of a weak satellite navigation signal. In a weak-signal environment, a high-sensitivity satellite navigation receiver needs to accumulate correlated results of a pseudo code for a long time so as to meet the sensitivity gain requirement of capture. The invention aims to reduce the SNR (Signal-to-Noise Rate) loss brought from a detection and judgment process of the correlated results by using a signal-based PAPR (Peak-To-Average Power Ratio) judging method and provides a self-adaptive treatment method for judging a threshold. Meanwhile, in the invention, the influence of a near-far effect is considered, and a judging module for removing cross correlation after primarily judging signal existence is provided so as to weaken the influence of the cross correlation interference of C/A (Coarse/Acquisition) codes. A control module carries out two-dimensional search on a capturer, and a method for detecting a maximum value falling trend is used for judging Doppler frequency shift existing in the current signal so as to shorten the search time of a frequency dimension and increase the capture efficiency. The invention is suitable for systems such as a GPS (Global Positioning System), BD-2 (BeiDou-2), and the like and can achieve the cold-boot capture sensitivity up to -145dbm.

Methods and systems are provided for characterizing an overhead line. A radar signal is propagated in a region that includes at least a portion of the overhead line and a reference object, which may, for example, be a ground surface, growth over a ground surface, or another overhead line. A reflected radar signal is received from the overhead line and the reference object. A determination is made of a geometric relationship between the overhead line and the reference object, such as by determining a minimal separation between the overhead line and the reference object.

A method and apparatus for managing movement. A navigation system comprises a first inertial measurement unit enabled global positioning system device having a first inertial measurement unit with a first level of accuracy in a first vehicle and is configured to provide first information that identifies a position of the first vehicle relative to a second vehicle. The navigation system further comprises a second inertial measurement unit enabled global positioning system device in the first vehicle having a second inertial measurement unit with a second level of accuracy that is greater than the first level of accuracy and is configured to provide second information that identifies the position of the first vehicle relative to the second vehicle. The navigation system further comprises a controller that is configured to perform an action based on a desired level of accuracy of the first information.

The invention provides a battle tracking system and method aiming at firefighters at a fire scene. The system comprises shoe bodies, position labels and a fire fighting commanding system, wherein each shoe body is provided with a micro control unit, a GPS module, an inertial navigation system module, a label identifying module, an environment induction sensing module, an alarming module, a communication module and a power supply in the position of the heel of a sole; the label identifying modules are used for identifying the position labels in a building through scanning and obtaining the three-dimensional absolute coordinate values of the positions where the labels are placed; the shoe bodies are communicated with the fire fighting commanding system for data transfer through the communication modules. The battle tracking system has the benefits as follows: the positioning system is combined with the special shoes of firefighters, so that the real-time position tracking of battle firefighters at the fire scene and the real-time detection monitoring on the fire scene disaster situation can be implemented, and the real-time positions of firefighters and the fire scene disaster situation can be fed back to commanders through the communication modules in time, therefore, the commanders can control the overall situation conveniently, the safety of people's lives and properties can be guaranteed furthest, and the fire damage is reduced.

A combined navigation method based on an INS (inertial navigation system)/GPS (global position system)/SAR (synthetic aperture radar) comprises steps as follows: an INS receiver, a GPS receiver and an SAR sensor are mounted in appropriate positions of an unmanned aerial vehicle in parallel; image matching is performed, and position navigation deviation of the INS is obtained and taken as an observed quantity to be input into a filter, and the observed quantity and other observed quantities are jointly filtered; GPS measuring deviation is obtained and taken as an observed quantity to be input into the filter, and the observed quantity and other observed quantities are jointly filtered; the filter integrates the measuring deviation from the GPS and the position navigation deviation, obtained through image matching, from the INS, and a navigation error estimated value is calculated. Topographic features are automatically and reliably extracted from an SAR image, a map image is formed in a digital map, and the SAR topographic features are automatically predicted; topographic deviation is accurately estimated and integrated; capture and matching are automatically initialized; the fault tolerance capability, the autonomy and the reliability of navigation are high.

The invention provides an ionized layer delaying estimation method of a Beidou navigation satellite system. The method comprises the followings steps: a step of roughly calculating longitude and latitude: enabling a Beidou navigation satellite receiver to calculate a satellite position and a pseudo-range according to a satellite ephemeris to receive rough longitude and latitude position information of the receiver; a step of calculating longitude and latitude of a breakthrough point: calculating longitude and latitude information of the breakthrough point of a participating positioning satellite according to the obtained rough longitude and latitude position information and participating positioning satellite position information; an ionized layer delaying correction step: determining a grid point containing the breakthrough point and ionized layer correction delaying information containing the breakthrough point according to grid ionized layer delaying information sent by a GEO (Geostationary Earth Orbit) satellite of the Beidou navigation satellite system and the longitude and latitude information of the breakthrough point; and a step of calculating accurate longitude and latitude: revising an observation equation of the Beidou navigation satellite receiver according to the ionized layer correction delaying information of the breakthrough point and calculating the accurate longitude and latitude. With the adoption of the technical scheme, the grid ionized layer delaying information of a GEO satellite ephemeris of the Beidou navigation satellite system can be used for reducing ionized layer errors and the navigation positioning precision is improved.

Each time mobile communication terminal 10 moves a distance of 150 kilometers, it computes its approximate position by performing a stand-alone position measurement, and stores the approximate position. When mobile communication terminal 10 needs to precisely measure its location it notifies position measurement assist server 30 of the stored approximate position, to thereby perform a GPS position measurement operation by using satellite capturing data transmitted, accordingly, from position measurement assist server 30.

A system and method for location detection is disclosed. The system and method may derive estimates of a user's location by interfacing with other sources of location data. In one aspect of the invention, a client device may determine the user's location by using locally configured location services. The client device may also query a remote server that contains recent geolocation data of the user. Both the local and remote estimates may be presented to a user. The user may also be allowed to select the location that most accurately represents the user's current location.

The invention discloses a satellite signal capturing method and device which achieve fast and real-time capture by a code parallel and frequency parallel search method. The satellite signal capturing method and device can be applied to military codes and civilian codes with the same rate, improve the sensitivity without increasing the resources. The whole process can be realized in a FPGA, which is beneficial to the miniaturization design of a receiver. The method of the invention is applicable to the receiver terminals of satellite navigation systems such as Beidou, GPS and the like, and has strong practicability.

This invention provides a mobile positioning method and system, which comprises the following steps: first determining an initial points three-dimensional information of a mobile body, wherein the three-dimensional information is based on a resolute earth coordinate system; then detecting the said mobile body three-dimensional movement and generating the movement information; finally converting the information into the resolute coordinates system information.

A crop yield per location measurer is disclosed. In general, the crop yield measurer includes a crop collector for a field of crops. The crop collector includes a navigation satellite system location determiner to determine location information at periodic times during a crop collection process. The crop collector also includes an optical mechanism to optically determine a volume of collected crops at the periodic times during the crop collection process. In addition, a database is used for storing the location information and the volume at the periodic times during the crop collection process. A crop yield overview generator is then utilized to provide a user accessible crop yield per location overview for the field of crops based on the information stored at the database.

The invention relates to the technical field of Internet of things positioning, and particularly relates to a multi-level positioning method and system based on identity management. The method includes the following steps: an identity management server registers positioning object information and establishes a mapping relationship between an ID of a positioning object and an object identifier (OID) of a positioning device; and the positioning device determines a positioning mode and sends a positioning mode conversion request command to the identity management server. According to the scheme of the invention, positioning sub-tags of each positioning technology are integrated in the positioning device, the positioning device is subjected to OID coding, the management of a positioning sub-tag ID is replaced by the management of the OID of the positioning device, and thus the complexity of managing the positioning object can be reduced; and the positioning device switches the positioningmode according to the requirements for the positioning accuracy in real environments, the positioning sub-tags of the positioning system with different accuracy levels are adopted to acquire locationinformation, and thus the positioning accuracy of the positioning system can be improved level by level.

The invention relates to the technical field of Beidou navigation and discloses a Beidou navigation-based vehicle navigation device, comprising an outer frame. A horizontal plate is slidably connectedbetween two sides of the inner wall of the outer frame, a rotating device is fixedly connected to the top of the horizontal plate, a navigation instrument is fixedly connected to the top of the rotating device, and a display screen is fixedly connected to the surface of the navigation instrument. According to the Beidou navigation-based vehicle navigation device, the display angle of the vehiclenavigation device is convenient to adjust, so that drivers can watch conveniently, multi-angle adjustment can be made according to needs of drivers, convenience is brought to drivers, in the process of not using, the device can be controlled to contract, to avoid obstructing the driving line of sight of drivers, the driving safety is increased, the stability of the device in the process of liftingand lowering is improved, the device is prevented from being damaged, the service life of the device is prolonged, navigation is realized through the Beidou positioning system, the path can be intelligently planed, and the navigation information can be displayed and broadcast.

The invention discloses a Beidou short message cloud computing platform system. The system comprises a physical facility layer, a platform layer module, a control interface layer and an application layer, wherein the physical facility layer provides hardware support comprising the network resource, the computing resource, the storage resource and the satellite communication resource; the platform layer provides a data collection system and a service execution system to perform the data acquisition and processing; the control interface layer provides the data collection system, the data analysis system, a data reporting system and a service process management system; the application layer realizes the interaction with the control interface layer by using the own network source of the application. Through the way of combining the Beidou short message and the computing way of the internet, the software and hardware resource and information are shared, so that the Beidou short message technology can extensively applied through the internet; the user can select as required without autonomously constructing, and the development difficulty of the Beidou short message technology is lowered.

A method, apparatus, and augmented reality system comprising an active portable anchor used by an augmented reality device to display augmented reality information on a live view of an object. The active portable anchor is configured to output a current physical anchor position of the active portable anchor relative to an object.

The present invention provides an underwater vehicle cooperation positioning method and system, and relates to the underwater detection technology field. The method comprises: obtaining the position state information of a current underwater vehicle below the water in the last moment; determining whether location signals sent by a GPS buoy are received at the current moment or not; if determining that location signals sent by a GPS buoy are not received at the current moment, obtaining target signals sent by the target underwater vehicle in an adjacent communication range, wherein the target underwater vehicle is at least one underwater vehicle adjacently arranged with the current underwater vehicle, and the target signals comprise underwater acoustic environment parameters and position signals; and performing updating of the position state information of the current underwater vehicle based on the target signals to obtain the position state information of the current underwater vehicle at the current moment so as to effectively relieve the technical problem that a current underwater vehicle cannot satisfy a high-precision location requirement.

The invention discloses a soil moisture detection and data processing robot control method. The method comprises the steps that S1 a robot starting point set and walking paths corresponding to robot starting points in the robot starting point set one to one are established; S2 a starting point is selected from the starting point set and used as a target starting point, and a robot starts from thetarget starting point and follows a target walking path corresponding to the target starting point one to one; S3 during the walking of the robot, the position of the robot is taken as a collection point every T seconds, and the soil moisture and position coordinate of the collection point are acquired; and S4 after the robot finishes the target walking path, the target starting point in the robotstarting point set is deleted; S5 whether the robot starting point set is an empty set is determined, and if so, a potential map of the field soil moisture is established according to soil moisture and position coordinates of several collection points, otherwise step S3 is carried out.

The invention discloses a landslide displacement monitoring device and method based on GNSS and MEMS sensors, the monitoring device comprises a base, a mounting block and an adjusting plate, the top of the base is fixedly connected with a first motor, and the output end of the first motor is fixedly connected with a threaded sleeve. The invention further provides a landslide displacement monitoring method which comprises the following steps: step 1, monitoring the displacement data of the landslide through the monitoring mechanism, and then sending the monitoring data to the processor through technologies such as remote wireless transmission; 2, the data are sent to a remote control center through a signal transmitter to be analyzed and processed, and real-time automatic analysis and early warning and automatic sending of early warning information are achieved; and 3, the signal receiver receives a remote control instruction, each module is controlled to start, and the angle of the adjusting plate is adjusted, so that the landslide is monitored more flexibly. According to the landslide monitoring equipment, through arrangement of the remote control adjusting mechanism, the adjusting plate can be freely adjusted, so that the use effect of the landslide monitoring equipment is improved.

The invention provides a method for detecting weak harmonic interference signals inside a satellite navigation anti-interference antenna system. Spectrum energy adaptive coherent integration serves asinspection amount, judgment threshold is adaptively computed, and the weak harmonic interference signals inside the satellite navigation anti-interference antenna system are detected. Compared with amanual detection and recognition method, the method has the advantages that original digital signals sampled by channels inside the system are automatically detected, the detection threshold is adaptively determined based on sampled data, and the detection probability of the weak harmonic signals inside the system can be effectively improved.