864 results about "Mobile station" patented technology

The invention discloses an ambiguity determination method for satellite positioning, a terminal and a medium in the field of satellite navigation and positioning, and the method comprises the steps: obtaining observation data of a base station and a mobile station, eliminating errors through employing a double-difference technology, and carrying out the cycle slip correction, and obtaining the corrected observation data; preliminarily estimating the speed and position of the mobile station; based on the corrected observation data, extracting an optimal ambiguity subset through satellite-level and ambiguity-level screening; constructing a factor graph model by using the optimal ambiguity subset, taking the preliminarily estimated speed and position of the mobile station as initial values, minimizing an error function in a factor graph, and optimizing to obtain a floating solution of ambiguity; obtaining an integer ambiguity solution based on the floating point solution; and verifying the stability of an ambiguity resolving result through consistency, and finally obtaining an ambiguity fixed solution. According to the method provided by the invention, high precision, high efficiency and high stability of ambiguity calculation are realized, and the method is suitable for a high-precision satellite positioning system in a complex environment.

Various aspects of the present disclosure generally relate to wireless communication. In some aspects, a mobile station may receive configuration information indicating sounding reference signal (SRS) resource sets, the configuration information indicating: a first set of SRS resource sets, of the SRS resource sets, associated with a first downlink control information (DCI) format, and a second set of SRS resource sets, of the SRS resource sets, associated with a second DCI format, wherein at least one of the first set or the second set comprises at least two of the SRS resource sets. The mobile station may transmit, based at least in part on the configuration information, at least one uplink communication using at least one SRS resource of at least one of the SRS resource sets of at least one of the first set or the second set. Numerous other aspects are described.

The invention provides a frequency hopping communication method based on LoRa and a related device, applied to a base station, the method comprises the following steps: configuring to work on m independent channels of a target frequency band, the residence time of each channel being a duration T, m being an integer greater than 1; generating a random frequency hopping sequence according to the pairing code shared with the moving station; hopping to a target channel according to the frequency hopping sequence, and sending a data packet containing a network identifier within the residence time, the network identifier being associated with the pairing code; receiving a frequency matching acknowledgement message fed back by the moving station, wherein the frequency matching acknowledgement message is sent after the moving station monitors the data packet and verifies that the network identifier is matched; in response to the frequency matching confirmation message, issuing a synchronization instruction containing a frequency hopping sequence to the moving station; and performing data frequency hopping transmission with the moving station on m independent channels based on the synchronization instruction. Through dynamic random frequency hopping and time synchronization, efficient and reliable frequency hopping communication between a base station and a moving station is realized.

The invention relates to the technical field of hydrogen exchange robots, and discloses a hydrogen fuel heavy truck movable hydrogen exchange robot which comprises a movable truss, movable tables are fixed to the two ends of the movable truss, first movable wheels are installed below the movable tables, a sliding rail is arranged below the movable truss, the first movable wheels are located on the sliding rail, and the first movable wheels are located on the sliding rail. The movable truss is provided with a [-shaped seat, the two sides of the [-shaped seat are each provided with a second movable wheel, the movable truss is provided with two strip-shaped grooves, and the second movable wheels are located in the strip-shaped grooves; in the hoisting and replacing process of the hydrogen tank module, rain and snow attached to the top of the hydrogen tank module can be blown to the two sides through the first blowing nozzles fixed to the mounting plate in rainy and snowy weather, so that the replaced hydrogen tank module can reduce the problems of short circuit and damage caused by contact between the rain and snow and electronic equipment in the hydrogen charging equipment in the charging process of the hydrogen charging equipment.

The disclosure relates to a 5G or 6G communication system for supporting a higher data transmission rate. Embodiments herein provide higher priority PLMN selection method during disaster situation in a wireless network (1000) by MS (100). In an embodiment, when MS (100) is registered for the disaster roaming service, the method includes selecting a higher priority PLMN in a priority order when the higher priority PLMN is available in the network and other non-forbidden PLMN when the higher priority PLMN is unavailable in the network, and registering the MS to receive the service in the network on one of the selected higher priority PLMN, and the selected other non-forbidden PLMN. In another embodiment, when the MS is not registered for the disaster roaming service, the method includes selecting a higher priority PLMN in a priority order when the higher priority PLMN is available in network, and registering the MS on the selected higher priority PLMN to receive the service in network.

The invention discloses a navigation method based on rtk laser vision fusion, and belongs to the field of map navigation, and the method comprises the following steps: S1, data acquisition, RTK data acquisition, and installation of RTK positioning equipment including a base station and a mobile station; the base station is arranged at a fixed point of a known accurate position and continuously transmits a signal containing position information; the mobile station is installed on a navigation carrier, receives base station signals and satellite signals and determines high-precision position coordinates and time information of the carrier, and the advantages of all the sensors can be brought into full play by fusing data of the RTK, the laser radar and the visual sensor, and the limitation of a single sensor is made up. High-precision absolute position information is provided through RTK, the laser radar accurately senses the three-dimensional shape and distance of an object, and the visual sensor identifies specific marks and textures. The fusion of the three can improve the estimation precision of the navigation system on the position, speed and direction, and reduce the positioning error.

This disclosure relates to wireless communication methods that reduce power usage in a mobile station caused by monitoring Physical Downlink Control Channel (PDCCH). The mobile station can implement a PDCCH monitoring skipping behavior including skipping the monitoring of the PDCCH for a skipping period.

The invention discloses a mining vacuum drainage system, which relates to the technical field of mine drainage and comprises a tail end water collector, a height difference controller, a three-phase generator, a vacuum pipeline, an auxiliary pump station, a slag separator, a pump station system and a control system. It is ensured that the system safely and efficiently operates in roadways, tunneling faces or fully mechanized coal mining faces of coal mines, strip mines or non-coal mines. The system is applied to the tail end drainage requirement of a drainage system, a series of problems caused by decentralized drainage in a coverage area can be solved only through one vacuum drainage system, concentrated drainage of multiple drainage points is achieved, facilities such as a shift transformer, a switch, a cable, an electric pump, an air pump and an air pipe are omitted, and the cost is reduced. Concentrated drainage can be achieved only through the pump station, the vacuum pipeline and the matched water collector, great cost is saved in the aspects of purchase, installation, operation and maintenance, energy consumption, inspection, overhaul, recovery and the like of traditional drainage equipment, and the comprehensive efficiency of an original drainage system is remarkably improved.

The invention relates to a pipeline inspection method, system and device integrating mixed reality and high-precision real-time positioning and a medium, and relates to the technical field of pipeline positioning inspection, and the method comprises the steps: carrying out the decoding positioning processing through employing the obtained differential correction data and high-precision real-time satellite data, high-precision real-time positioning information when the mobile station performs pipeline inspection on the target pipeline is obtained, then three-dimensional rendering is performed by using the high-precision positioning information in combination with pipeline coordinate data and a pre-constructed three-dimensional pipeline model, and holographic projection data representing the real-time condition of the pipeline is obtained. According to the method and the device, the pipeline is subjected to pipeline holographic projection display and pipeline inspection according to the holographic projection data, and the pipeline data operation is performed in the pipeline inspection process, so that on the basis of remarkably improving the positioning precision, the real-time and visual display of the data is further realized, the data can be efficiently operated, and the data operation error rate is reduced.

Techniques related to managing connections between a mobile device and multiple wearable devices are disclosed. In one example aspect, a method for managing connections includes receiving a first request from a user to connect a first wearable device to a mobile device and connecting the first wearable device to the mobile device upon determining compatibility of the first wearable device with the mobile device. In response to receiving a second request from the user to connect a second wearable device to the mobile device, the first wearable device is disconnected from the mobile device and the second wearable device is connected to the mobile device.

The invention relates to a data transmission method and device, a storage medium, communication equipment and a communication system. The method comprises the steps that first information sent by access network equipment is received, and the first information is related to the configuration condition of small data transmission of terminal equipment; or, second information is sent to the access network equipment, and the second information is related to called communication of the mobile station based on the core network. According to the invention, when the core network equipment processes the downlink information of the terminal equipment, the configuration condition of small data transmission of the terminal equipment can be considered, and the access network equipment can know the condition related to the called communication of the mobile station based on the core network.

The utility model relates to a screen defect detection device, comprising: a feeding assembly, the feeding assembly comprises a first driving member, a first mobile station and a first detection member, the first mobile station is used for placing a to-be-detected screen, and the detection end of the first detection member faces the moving path of the first mobile station; the transfer assembly comprises a second driving part, a third driving part and a first adsorption part, and the second driving part and the third driving part can drive the first adsorption part to move in the direction close to or away from the moving path of the first moving table; the conveying assembly comprises a fourth driving part and a second moving table, and the transferring assembly can drive the first adsorption part to move in the direction close to the moving path of the second moving table; and the detection assembly comprises a second detection piece and a first light source piece, and the detection end of the second detection piece faces the light emitting end of the first light source piece. The screen can be prevented from being damaged in the detection process, and the accuracy of a detection result is improved.

The invention discloses an unmanned aerial vehicle intelligent identification device based on FAST site dangerous rock inspection. The unmanned aerial vehicle intelligent identification device comprises an unmanned aerial vehicle, a laser radar, a surveying and mapping camera and a D-RTK mobile station, after the unmanned aerial vehicle takes off, inertial navigation calibration is firstly carried out at the high altitude, the unmanned aerial vehicle flies upwards in a bow-shaped circulation mode from the foot of a mountain body at the station site 1H, dangerous rock point cloud data of the high and steep slope around the station site are rapidly obtained through a laser radar and a surveying and mapping camera carried by the unmanned aerial vehicle, the three-dimensional geometrical characteristics of the dangerous rock mass are extracted, and the isolated dangerous rock mass of the high and steep slope is intelligently and efficiently recognized. Through laser radar imaging equipment carried by the unmanned aerial vehicle, high-density point cloud data of the high and steep slope around the station site is rapidly obtained, three-dimensional geometric features of the dangerous rock mass are extracted, and the isolated dangerous rock mass of the high and steep slope can be accurately, intelligently and efficiently identified. The method is of great significance to stable and reliable operation and scientific achievement output of a 500-meter-caliber spherical radio telescope (FAST) which is a national important scientific and technological infrastructure.

The invention discloses a real-time monitoring method and system for dynamic water level and storage capacity of a reservoir based on GNSS-RTK (Global Navigation Satellite System-Real-Time Kinematic), and belongs to the technical field of environmental monitoring, environmental governance and computer control. The system comprises a power supply system, a water level monitoring system, a control system and a data storage and display system. The method comprises the following steps: selecting a plurality of fixed observation stations around a reservoir, installing a high-precision GNSS receiver, and carrying out real-time continuous observation on a mobile station in a reservoir area; data collected in real time is transmitted to a data processing center through wireless communication or the Internet; calculating the real-time water level of the reservoir according to the buoy position information in combination with the function relationship between the water level and the position; substituting the water level data measured in real time into a volume calculation formula, and calculating the real-time storage capacity of the reservoir; and storing the calculated water level and reservoir capacity data in a database, and displaying the data in real time by using visual software. The method has the advantages of high real-time performance, high precision, high comprehensiveness and the like, and is suitable for the field of reservoir management and operation.

The invention relates to the technical field of construction beam body transportation, and provides a movable pedestal and a beam body transportation system. The movable pedestal comprises a bearing mechanism which is arranged to place a to-be-conveyed beam body; the walking mechanism is fixedly connected with the bearing mechanism, and the walking mechanism is arranged to advance on a preset track; and the pressure detection mechanism is arranged between the walking mechanism and the bearing mechanism, and the pressure detection mechanism is arranged to detect the pressure borne by the walking mechanism so as to represent the surface flatness condition of the preset track. According to the movable pedestal, the problem that in the prior art, when a beam body is transported, the beam body is prone to being damaged due to local stress changes caused by uneven road surfaces can be effectively solved, and stable and efficient transportation of the beam body is achieved.

The utility model discloses a shoulder type precise positioning fertilization system which comprises a Beidou / GPS receiving base station, a Beidou / GPS receiving mobile station, a quantitative fertilizer applicator, a server and a user side, and the Beidou / GPS receiving base station and the Beidou / GPS receiving mobile station are in mutual wireless communication connection with a Beidou / GPS satellite navigation positioning system. The Beidou / GPS receiving mobile station is installed on the quantitative fertilizer applicator in an electric connection mode, the quantitative fertilizer applicator is in wireless data transmission connection with the server, the server is in wireless data transmission connection with the user side, the quantitative fertilizer applicator is a shoulder type quantitative fertilizer applicator, and a fertilizer application switch, a mobile communication module, a camera, a control module and a power supply are installed on the quantitative fertilizer applicator. The fertilization switch, the mobile communication module and the control module are electrically connected with the power supply, and the Beidou / GPS receiving mobile station is electrically connected with the control module and the power supply. According to the utility model, the problem of large positioning data information error frequently occurring in the use process of the existing fertilizer applicator is solved, and the common phenomena of fertilizer application position information drifting, overlapping and the like are eliminated.

The present invention provides a method for low-complex estimation of Direction of Arrival (DoA) and Time of Arrival (ToA) in multi-antenna-based communication comprising detecting overlapped paths between a Mobile Station (MS) and a Base Station (BS) operating under said multi-antenna-based communication with scatters present therein involving channel paths represented as Channel Impulse Response (CIR) defined with channel signatures including delay and angle steering vectors, decoupling the channel paths in delay and angle-domain and separately estimate the DoA and ToA of each path with a low computational complexity which is based on one-dimensional low-index based rotation methodology and finally pairing the DoA and the ToA.

The invention provides an immersed tube joint sinking butt joint underwater space positioning system and method. The immersed tube joint sinking butt joint underwater space positioning system comprises a clinometer, a mobile station group, a tide gauge, a multi-beam sonar and a monitoring data analysis and display module. The inclinometer obtains bidirectional dip angle monitoring data of the immersed tube joint; the mobile station group obtains coordinate monitoring data of positions where the mobile stations are located respectively; the tide level meter obtains tide level monitoring data in the pipe joint sinking and butt joint period; the multi-beam sonar obtains the terrain data of the underwater foundation trench in the pipe joint sinking and docking area; the monitoring data analysis and display module obtains feature point coordinates, pipe joint postures and early warning index data on a to-be-immersed pipe joint according to the inclinometer monitoring data, the mobile station group monitoring data, the tide level data, the multi-beam underwater topographic data and the immersed pipe joint coordinate data.

The invention belongs to the technical field of satellite navigation and positioning, and particularly relates to an integrated Beidou GNSS intelligent receiver with integrated design, which is suitable for high-precision positioning, real-time monitoring and stable operation in a complex environment. The implementation steps are as follows: step 1, hardware design and assembly; 2, designing an algorithm; 3, designing a working principle; 4, deploying a base station and a mobile station in an actual application scene; and step 5, performance test and optimization.

A method for operating a mobile station (STA) to periodically change its medium access control (MAC) address includes transmitting, from a STA, a first capability indication to an access point (AP) indicating that the STA supports identifiable random MAC (IRM). The STA receives a second capability indication from the AP indicating that the AP supports IRM. A first IRM address (IRMA) is determined and a first association between the STA and the AP is established using the first IRMA. A determination is made whether to change a MAC address of the STA. In response to a determination to change the MAC address of the STA, without disconnecting from the AP, a second IRMA is determined and a second association between the STA and the AP is established using the first IRMA. During the second association, the second IRMA is transmitted from the STA to the AP.

The utility model discloses a surface polishing device for mould processing, which comprises a polishing box, a dust collection device is mounted at the top end of the polishing box, a polishing component is mounted in the polishing box, a mould positioning component is mounted on the inner bottom wall of the polishing box, and the mould positioning component comprises a fixed table fixedly mounted on the inner bottom wall of the polishing box. A first moving table is arranged above the fixed table, the first moving table is used for driving a mold to move along the Y axis, a second moving table is arranged above the first moving table, the second moving table is used for driving the mold to move along the X axis, and two first sliding grooves are symmetrically formed in the top end of the fixed table in the Y-axis direction; in the working process, the two clamping plates are in threaded connection with the two threaded grooves, opposite in forming direction, in the double-thread screw, the mold is placed between the two clamping plates, the fifth motor is started to enable the double-thread screw to rotate, the two clamping plates are driven to be close to each other to clamp and fix the mold, and the stability of the mold in the polishing process is improved.

The utility model relates to a photovoltaic cleaning robot based on RTK, which comprises a robot body, cleaning assemblies are respectively arranged at the front end and the rear end of the robot body, and photovoltaic assemblies in a photovoltaic array in a photovoltaic power station are cleaned through the cleaning assemblies; an RTK base station is fixedly installed in the photovoltaic power station, and an RTK moving station is arranged on a machine body of the photovoltaic cleaning robot; a first visual sensor is arranged at the front end of the bottom of the machine body and is used for detecting a photovoltaic module at the bottom of the machine body and obtaining a first line feature; a second visual sensor is arranged at the top end of the front portion of the machine body and used for detecting the photovoltaic assembly in front of the machine body and obtaining second line characteristics. The device has the characteristics of simple structure, convenience in operation, safety and reliability; the global positioning data obtained through the RTK carrier phase difference technology and the local positioning data obtained through the visual detection technology are fused to obtain more accurate positioning data.

The invention provides a troposphere delay correction method and system, electronic equipment and a storage medium, and the method comprises the steps: extracting troposphere delay of a reference station through a non-difference combination observation value method according to the obtained real-time reference station observation data, broadcast ephemeris, ultra-fast orbit and clock correction, carrying out the adjustment of observation values of a plurality of satellites, and carrying out the adjustment of the observation values of a plurality of satellites; the zenith troposphere delay of the base station is obtained; the zenith troposphere level of the base station after normalization processing is interpolated to the position of the moving station through an inverse distance weighted interpolation method, zenith troposphere delay of the moving station is obtained according to a pre-constructed elevation normalization model, and the elevation normalization model is constructed based on ERA5 horizontal atmospheric layer meteorological data. According to the method, the adaptability of the model to complex terrains can be improved, so that the model precision is improved, the precision single-point positioning convergence time of the moving station is effectively shortened, and the precision single-point positioning precision is improved.

The utility model discloses a battery swap station which comprises a fixed battery swap station, a movable station channel, a battery swap vehicle channel, a movable station and a battery swap robot. The fixed battery replacing station comprises a box shell and a plurality of battery boxes, the battery boxes are arranged in the box shell and are sequentially arranged in the length direction of the box shell, the movable station channel and the battery replacing vehicle channel are arranged on the two sides of the box shell in the width direction respectively, the movable station can stop at the movable station channel, and the movable station is provided with a vehicle body, a walking mechanism and the battery boxes. The walking mechanism is arranged on the vehicle body, the battery box is arranged on the vehicle body, the battery replacing robot is arranged in the box shell, the battery replacing robot is provided with a telescopic arm and a battery gripping apparatus arranged on the telescopic arm, and the telescopic arm can do bidirectional telescopic motion in the width direction of the box shell and can drive the battery gripping apparatus to move to the movable station channel or the battery replacing vehicle channel. The battery replacing machine can directly transfer the battery box on the movable station to the battery replacing vehicle stopping in the battery replacing vehicle channel.

A method in a mobile station (STA) configured to associate to an access point (AP) is described. The method includes determining an identifiable random medium access control (MAC) address (IRMA), associating to the AP and transmitting the IRMA to the AP during the association. The method also includes using the IRMA as the transmitter address (TA) a next time the STA begins to associate to the AP, where the IRMA is usable by the AP to identify the STA prior to a next association, determining a new IRMA, and transmitting the new IRMA to the AP during the next association. One or more additional associations to the AP are performed at least by transmitting at least a corresponding IRMA to the AP and indicating that the corresponding IRMA is a TA of the STA.

The invention discloses a UWB indoor positioning method based on an RTK difference thought, and relates to the technical field of indoor positioning. Comprising a base station, reference stations and a mobile station, and specifically comprises the following steps that 1, UWB signals are sent through the base station, a plurality of reference stations with known accurate coordinates are deployed indoors, the reference stations are UWB anchor points, and the positions of the reference stations are calibrated in advance through laser surveying and mapping; according to the method, the base station with the known accurate position is deployed indoors, the base station is used for calculating the error in the UWB signal propagation process, the error correction information is sent to the mobile station, and the mobile station corrects the distance measurement result of the mobile station according to the correction information, so that the precision and the stability of UWB indoor positioning are improved. The UWB indoor positioning method effectively solves the problem of positioning errors caused by factors such as multipath effect, non-line-of-sight and clock drift in UWB indoor positioning, and is suitable for various indoor scenes such as industrial storage, medical care for the aged and emergency rescue.

The invention discloses a universal mounting platform for multi-size semiconductor chips, and relates to the technical field of semiconductor testing and packaging, the universal mounting platform comprises a base, a chip use platform is fixedly arranged in the base, an adjustable chip positioning mechanism is arranged on the base, a fixing frame is fixedly arranged on the base, and the adjustable chip positioning mechanism is arranged on the fixing frame. A chip collecting structure and a discharging structure are arranged on the fixing frame; the adjustable chip positioning mechanism comprises a first electric sliding rail, the first electric sliding rail is fixedly arranged on the base, a moving table is arranged on the first electric sliding rail in a sliding mode, a machining groove is formed in the base, and adapter plates for different pin chips are arranged on the moving table. According to the invention, clamping of a plurality of chips is realized through the adapter plate, temporary storage and blanking of the plurality of chips are conveniently realized through the collection structure and the blanking structure, and the problems that the shutdown time of equipment is increased and the test efficiency is reduced due to frequent replacement of clamps in the prior art are solved.

The invention discloses a gantry type multi-station manipulator action control mechanism, and particularly relates to the technical field of manipulator control mechanisms, the gantry type multi-station manipulator action control mechanism comprises a moving table, a portal frame and an adjusting mechanism, the adjusting mechanism used for working at a single station or synchronously working at a plurality of stations is arranged on the surface of a fixing frame, and through the adjusting mechanism and a connecting mechanism, the gantry type multi-station manipulator action control mechanism is achieved. When two workpieces are machined, an adjusting rod and a connecting plate are driven to move backwards, a first clamping block is inserted into a clamping hole, meanwhile, the adjusting rod drives a fixing strip to move downwards through an inclined block, a limiting block is clamped on a second rack, a plurality of stations are connected together, and when one adjusting rod is moved, two workpieces can be machined at the same time; when the two adjusting rods are moved, three workpieces can be machined at the same time, when the three adjusting rods are moved, four workpieces can be machined at the same time, when the adjusting rods do not move, a single workpiece can be machined, meanwhile, the other stations cannot be started, and influences on workpiece machining during synchronous operation of the stations are avoided.

The invention relates to the technical field of medical inspection equipment and portable cold chain control, in particular to a foldable temporary inspection reagent refrigeration box temperature control and pipettor waste liquid early warning system. The system is composed of a semiconductor refrigeration and phase change cold storage composite temperature control unit, a reagent position RFID and expiration management module, a temperature, humidity and vibration monitoring module, a waste liquid collection and liquid level and component monitoring unit, an edge control and information interaction terminal, a pipettor interface control module, a folding state detection module and a power supply and battery management module. 2-8 DEG C closed-loop temperature control and timing temperature return are realized; when the event is close to a threshold value, alarming and prohibiting cover opening, and locking suction and discharge; and recording the cold chain and tracing. According to the technical scheme, 2-8 DEG C closed-loop temperature control and timing temperature returning are achieved, automatic temperature control tightening, cover opening forbidding, suction and exhaust locking and chain type tracing are achieved in the abnormal state, and the problems that temperature control beside a mobile station is disjointed with authority, and tracing is insufficient are solved.

The utility model discloses a building wall crack detection device, and relates to the wall crack detection technology field, the building wall crack detection device comprises a pedestal, the main body of the pedestal is a rectangular structure, the building wall crack detection device is provided with a mobile station capable of moving and exhibiting, and a tool box, according to the tool box display device, the movable base is arranged on the base, so that when a distance measuring assembly arranged on the top end face of the base detects that the movable base ascends, an electric push rod installed in a guide rail can be synchronously started to display the movable table and the tool box, and by arranging an infrared module and a camera shooting assembly, when the movable base moves, the movable table and the tool box can be displayed; through the arrangement of the infrared module and the camera shooting assembly which are fixedly connected to the outer side face of the wall body, the picture of the current wall body can be shot and recognized, and whether hidden cracks exist in the wall body or not is recognized and judged in a non-contact mode.