69 results about "Gps network" patented technology

An asset tracking unit, system, and method. The asset tracking unit, system, and method may include at least one transceiver having communicative connections with at least one SATCOM network and at least one GPS network via at least one antenna, wherein tracking information for at least one asset associated with the at least one transceiver is received from the GPS network and is communicated to the SATCOM network, a first link that provides a multi-code one of the communicative connections between the at least one transceiver and the at least one SATCOM network, and a second link that provides a multi-channel one of the communicative connections between the at least one transceiver and the at least one GPS network. The unit system and method may additionally include at least one remote operations center remote from an asset to be tracked, wherein the asset to be tracked is geographically associated with the central processing unit.

The invention relates to a networked on-line real-time analysis system for an electric power fault recording device. The networked on-line real-time analysis system comprises a main station system, an external network and an internal network, wherein the external network and the internal network are connected with the main station system; the main station system comprises a data server serving as an application server, a maintenance working station and a printing terminal; the maintenance working station and the printing terminal are connected in parallel; the external network comprises an external communication server which is networked with a dispatching data network through a GPS (Global Positioning System) network and a network switch; the dispatching data network is networked with a sub-station; fault recorders connected in parallel are arranged in the sub-station; the internal network comprises an internal communication server which is connected with a database server, a communication server and a WEB server, and the whole internal communication server is connected with a DMIS (Dispatching Management Information System) server group. According to the networked on-line real-time analysis system for the electric power fault recording device, fault reports and fault recording data can be quickly and accurately obtained, and a relay protector can accurately analyze and judge the fault conditions, so that the accident analysis and processing speed is increased, and the safe and stable running of the electric power system is improved. The running state of the recorder can be monitored, and the running maintenance cost for daily monitoring is reduced.

The invention discloses a GPS time sequence generalized common mode error extraction method. According to the invention, space responses of common mode errors are analyzed, an extraction mechanism of large-area GPS network common mode errors is established, physical factors such as a correlation coefficient [rho], the distance, latitude and longitude, a local effect, a load effect, a main component contribution rate and space responses are used as evaluation factors, , a feasible estimation method is provided to the common mode errors between stations of the large-area large-scale GPS network by means of clustering analysis, and a better filtering effect is obtained; in addition, the limitation of a conventional GPS time sequence model is considered, the model errors introduced in time sequence annual and semiannual term fitting processes are weakened, the periodicity of the common mode errors is considered, and that is to say, before common mode error removing is carried out on a residual sequence, the annual and semiannual terms of an original coordinate sequence are reserved, so that the space changes and the periodical change of the common mode errors are practically reflected, and a basis is further provided for improving the precision of a GPS coordinate sequence model.

The invention relates to an estimation method of an extra-long tunnel horizontal through error. Hole exterior and hole interior control measuring errors are not inevitable when a tunnel is excavated, and so that the tunnel opposite excavation has the through error. The estimation method provided by the invention comprises the following steps of: establishing a hole exterior horizontal control network, obtaining a breakthrough point coordinate form an inlet point, an outlet point and a directional point, estimating the horizontal through error caused by a hole exterior horizontal control measuring error according to a differential formula method; and then establishing a tunnel hole interior wire network, designing the wire network from the inlet and the outlet and a through surface in a simulating manner according to an equal side, and estimating a tunnel horizontal through error caused by the hole interior wire measuring error. The estimation method provided by the invention can be used for carry outing hole exterior GPS (Global Positioning System) network and hole interior wire net simulation and flat difference without measured data, the horizontal through error caused by the hole exterior GPS network measuring error and the horizontal through error caused by the hole exterior horizontal control measuring error of any length tunnel are estimated, and the problem of extra-long tunnel control measuring horizontal through error and control network optimization design is solved.

The invention provides a correlation coefficient-based method for weakening the CME (common mode error) influence in a coordinate time sequence. The correlation degree of the GPS (global positioning system) measuring interstation coordinate time sequence is represented by adopting correlation coefficients between a reference station and common measuring stations, and the correlation coefficient is used as the weight for calculating the GPS measuring interstation common-mode error. Meanwhile, the GPS measuring interstation negative correlation is not omitted, a positive correlation and a negative correlation are substituted into the CME calculation system at the same time, positive and negative correlation are equally treated as the weight factor for measuring the GPS measuring interstation CME influence. According to the correlation coefficient-based method, the technical problems that the existing method for weakening the CME influence in the coordinate time sequence is limited in interstation distance, low in space accuracy and the like are solved, and the method can process the measuring interstation CME influence of a GPS network being more than 2000km and can ensure the space response accuracy.

The invention discloses an urban public bicycle real-time online query system. After the wireless radio frequency identification technology is adopted in the system to collect public bicycle station and electric vehicle charging station information, information of each parking space is sent to a management base station in a specific data encoding format through the wireless near-distance data transmission technology; the management base station uploads information of all stations to a Web data management platform in a GPRS network communication mode based on a hypertext transfer protocol; the Web data management platform gathers information of each station, and then the station information in the encoded format is converted and decoded by means of a data server, so a user can use a software terminal installed on an intelligent mobile terminal to have access to the Web data management server in real time through a GPS network, and real-time online query of urban public bicycle and electric vehicle charging station information is achieved.

The invention belongs to the technical field of personal safety monitoring, and particularly relates to a locatable wearing type tumbling monitoring system. The system comprises a ZigBee network, a GSM/GPS network, an upper computer and software of the upper computer. An acceleration sensor and a GSM/GPS positioning and communicating device are carried by a subject. A positioning device carries out positioning through the GPS, position information is sent to the upper computer in real time through the GPRS, the sensor measures triaxial acceleration information, the triaxial acceleration information is sent to the upper computer through the ZigBee network to be processed, the upper computer software analyzes the acceleration information, and whether the subject tumbles or not is judged according to the corresponding algorithm, wherein if the subject tumbles, the upper computer can warn and send a short message to an assigned contact person to give an alarm, and after the alarm short message is received, a specific short message can be sent to an assigned number to obtain the current position information of the subject person.

An apparatus and method for determining real time location of assets by calculating the relative position of a plurality of GPS enabled devices transported together, taking advantage of multiple GPS enable devices being transported together including dual band GPS and averaging location data between US and European GPS data. Additionally, an IMB acts to receive GPS data from multiple devices in a shipment and IMB combines and averages data from both GPS systems to create more liable location determination.

An NFC mobile phone system comprises a mobile phone, a mobile phone chip, a SIM (subscriber identity module) card and a third party data center, wherein the SIM card is arranged in the mobile phone. The NFC mobile phone system is characterized by also comprising an NFC structure; the NFC structure comprises an NFC chip, a coil and a safety chip; the NFC chip is connected with the safety chip through the coil; the NFC structure is communicated with an external card reader mutually through the coil, and payment is completed; the NFC structure is connected with a third party data center through a GPS (global position system) network, and a recharge transaction is realized; the safety chip and a mobile phone chip are communicated through a JAVA program; and the NFC structure is arranged on the mobile phone chip or the SIM card.

The invention discloses a GPS coordinate time sequence discontinuity complementing method based on a common-mode error, and the method comprises the steps: S1, selecting a medium- and small-scale GPS network, and selecting a plurality of continuity measurement stations from the continuity measurement stations in the medium- and small-scale GPS network; S2, obtaining the residual error coordinate time sequence of the continuity measurement stations according to the coordinate time sequence observation data of the continuity measurement stations; S3, selecting any one measurement station from the plurality of selected continuity measurement stations as a reference base station, and determining the common epoch of the reference station and the common continuity measurement stations in the medium- and small-scale GPS network; S4, obtaining the common-mode error that all common continuity measurement stations in the medium- and small-scale GPS network jointly act on the reference station; S5, complementing the GPS coordinate time sequence of a discontinuity measurement station in the medium- and small-scale GPS network through the common-mode error. According to the invention, the method achieves the complementing of the discontinuous data through employing the similarity of the continuous data residual error time sequence of the spatial distribution in the medium- and small-scale range, and improves the derivative quality based on the GPS coordinate time sequence.

The invention discloses a large bridge clearance height measurement method. The method comprises the following steps: using a GPS network RTK (real time kinematic) technology and a total-station precise triangular elevation measurement technology to obtain the elevation of points in a bridge floor in real time, carrying out bridge cross slope, bridge thickness and repairing track correction to obtain the elevation of a track beam bottom, and subtracting the elevation of the track beam bottom from the real-time water surface elevation to obtain the clearance height of a corresponding point. The method allows the beam bottom elevation of a large bridge to be measured, guarantees the reliability and the credibility of the bridge clearance height data, and can be widely used in the measurement of the practical navigation clearance height to ensure the safe pass of a ship.

The invention provides a pharos remote control telemetering terminal based on internet of things (IOT) application. The terminal comprises a CPU (central processing unit) and an ADC (analogue digital conversion) acquisition module, wherein the CPU is respectively connected with a GPS (Global Positioning System) positioning module and communication module; the GPS positioning module and the communication module are respectively provided with a built-in real-time clock chip; the CPU is connected with a navigation light, a solar panel and a storage battery through the ADC acquisition module. The pharos remote control telemetering terminal based on IOT application disclosed by the invention ensures the accuracy of uploading time and does not perform timing when distributing points at each terminal, thereby simplifying working process, improving operability; in addition, the haros remote control telemetering terminal has better reliability, does not depend on conventional GPS timing, can acquire effective time data without being restricted by GPS network signals even if the GPS signal intensity is low in the terminal working environment.

The invention relates to a mountain talus landslide prediction method and device. The prediction method starts with the dynamic analysis of the formation condition, the deformation state and the influence degree of an inducing factor of landslide, integrally determines the development degree and the dangerousness of the landslide from a macroscopic view, analyzes the development tendency of the landslide, establishes a landslide prediction model according to the displacement data of the landslide on the basis of the development tendency, carries out landslide displacement diachronic analysis and judges landslide occurrence time. The prediction device comprises a data acquisition network unit, a GPS (Global Positioning System) network transmission unit and a wireless serial port data sharing network unit, wherein the data acquisition network unit 1 consists of a terminal acquisition node, a routing node and a coordination node. The prediction method of the invention can better determine the development state of the landslide, analyze the qualitative and quantitative possibility that the landslide generates severe sliding, and make accurate discrimination on the landslides under different development stages. The prediction device has the advantages of being simple in structure, convenient in layout and use, high in technical feasibility, long in endurance time and low in energy consumption.

The embodiment of the invention discloses a communication method and system during train crossing. The method comprises the following steps of: on the basis of a GPS (Global Positioning System) network, obtaining the position information of each crossing train; on the basis of the position information of each crossing train, obtaining the position information of each base station under a double-loop communication network; when a communication condition under crossing is met, in a communication process, writing the data information of each crossing train to the base station which meets a crossing condition by a regional control unit in the double-loop communication network; and analyzing the data information of each crossing train in a TDMA (Time Division Multiple Address) protocol by the base station, and sending communication data to each crossing train on the basis of a way of millimeter wave communication. When the embodiment of the invention is implemented, on the basis of a time slot frame in the TDMA, a corresponding time slot frame is distributed to each train under crossing, the corresponding data information is written on the basis of the time slot frame, a data communication process in the train crossing process is realized, and the use ratio of the time slot frame is improved.

A method for improving discovery of preferred mobile computing locations includes monitoring sensor data corresponding to a mobile computing device (MCD) and monitoring non-GPS network data implemented by the mobile computing device. Additionally, the method determines whether sensor data and non-GPS network data indicate that the mobile computing device is stationary within a cell site as well as scanning any network that the mobile computing device is electronically linked to. In short, the method discovers an improved preferred mobile computing location based on the sensor data and non-GPS network data that provide reliable information that the mobile computing device is stationary within the cell site. The sensor data and non-GPS network data are converged when several corresponding scans produce overlapping results.

The invention discloses a method and a system for automatically positioning bicycle stations based on a GPS (Global Position System) network. The method comprises the following steps: automatically positioning longitude and latitude information of bicycle stations by GPS1 and storing the longitude and latitude information in a database 4 of a position center server 2; sending an automatic positioning request by a user through a handheld terminal 3; positioning geographic position information by the GPS 1 according to the positioning request and sending the geographic position information and IP address and a port number of the handheld terminal 3 to the position center server 2; matching the geographic position information of the handheld terminal 3 and the longitude and latitude information of bicycle stations by the position center server 2, and sending the longitude and latitude information of nearest bicycle stations to the handheld terminal 3. By virtue of the method, the bicycle stations of cities can be automatically identified; people can conveniently borrow and return vehicles; the purpose of contributing to the cities and reducing the emission of cities really can be achieved.

The invention belongs to the technical field of vehicle serving systems, and particularly relates to an intelligent management serving system and a serving method for a special vehicle. The intelligent management serving system for the special vehicle comprises a chassis vehicle, a compartment, a generating unit, a GPS satellite or GPS network and an operation management system, wherein a vehicle-mounted terminal and a two-dimensional code are arranged in the compartment, and the vehicle-mounted terminal comprises an intelligent management device and a control screen. The operation management system comprises a communication server, a database server, a monitoring terminal, a fire wall, a router and an operation management center. Management personnel of the special vehicle can scan the two-dimensional code pasted in the compartment through a mobile phone to master the information parameters of the special vehicle, so that the special vehicle can play a real role in meeting an emergency under the conditions of emergency and electricity protection, and through the intelligent management device, information is collected and identified, and remote starting and halting and automatic starting at the states of, oil and electricity cut-off and low temperature are realized.

The invention discloses a drunkenness distress method and system based on a GPS network. The method includes the steps that a handheld terminal 1 sends a drunkenness distress signal in a fixed frequency band; a GPS device 2 receives a drunkenness distress signal, conducts positioning and sends position information of drunk people to a driver designation center server 3; the driver designation center server 3 retrieves position information of a driver designation company in a database 4 and sends the position information of the drunk people to a driver designation company terminal 5. By sending the drunkenness distress signal in the fixed frequency band through the handheld terminal, receiving the drunkenness distress signal, conducting positioning and sending the position information of the drunk people to the driver designation center server through the GPS device, and retrieving the position information of the driver designation company in the database and sending the position information of the drunk people to the driver designation company terminal through the driver designation center server, the drunkenness distress signal is sent automatically in real time, and the service efficiency and positioning accuracy of the driver designation company are improved.

The invention discloses an indoor positioning method based on a GPS network and a ground coordinate network, and relates to the indoor positioning method; the method comprises the following steps: firstly, obtaining GPS data of assigned beacon points of a building; secondarily, obtaining an indoor space distribution information plan of a building floor; then, gridding and dividing the indoor areaaccording to positioning precision requirements, and building an indoor ground coordinate network; finally, converting and calculating indoor position GPS coordinate information according to GPS dataof the assigned beacon points and coordinates of an object in the indoor coordinate network, thus realizing indoor positioning. The method can directly obtain the indoor object GPS data without installing extra equipment, can realize indoor and outdoor compatible positioning, is strong in practical value, and wide in applications.