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167 results about "Short Message Service" patented technology

SMS (short message service) is a text messaging service component of most telephone, Internet, and mobile device systems. It uses standardized communication protocols to enable mobile devices to exchange short text messages. An intermediary service can facilitate a text-to-voice conversion to be sent to landlines. SMS was the most widely used data application at the end of 2010, with an estimated 3.5 billion active users, or about 80% of all mobile subscribers.

Intelligent short message scheduling system and method based on 5G network slices

The invention belongs to the technical field of intelligent short message service scheduling, and particularly relates to an intelligent short message scheduling system and method based on 5G network slices. According to the method, the short message service processing efficiency in the 5G network slice environment is effectively improved through accurate prediction and intelligent scheduling of the short message service traffic, the change trend of the short message service traffic can be accurately captured through smooth processing and exponentially weighted moving average processing of the traffic change rate time sequence, and the short message service processing efficiency is improved. Reliable data support is provided for subsequent scheduling decisions, meanwhile, through confidence evaluation and resource utilization evaluation, the predicted demand of short message service flow and the resource utilization condition can be comprehensively considered, the scheduling reasonability and effectiveness are ensured, in addition, the intelligent scheduling mechanism can automatically adjust resource allocation according to the scheduling priority, and the scheduling efficiency is improved. The sending requirement of the high-priority short message service is met, and the processing speed of the short message service and the user experience are further improved.
Owner:SHENZHEN ERCE TECHNOLOGY CO LTD

Short message variable replacement method based on dynamic template editing

The invention relates to the field of variable replacement, and discloses a short message variable replacement method based on dynamic template editing, which comprises the following steps of: changing a region into an editable state by using a contentEdible attribute of an HTML (Hypertext Markup Language), and presetting a variable label style in an editing region; a configuration person inserts a variable by clicking a variable tag on an interface, dynamically creates a virtual node by using a creature DocumentFragment method of a DOM (Document Object Model), and inserts the corresponding variable tag into a position where a cursor is located in a special style; when a user clicks or inserts the variable label, using window.getSelection to obtain the position of a cursor in real time; after finishing editing, the configuration personnel click a saving button; the system replaces variable labels in a template with actual content according to a stored variable mapping relation through a template text extracted through code analysis in the background, and the replaced complete short message content is transmitted to a short message service module and is ready to be sent to a target user. The method has the advantage of improving the overall working efficiency and accuracy.
Owner:SHENZHEN HAIGUI NETWORK TECH CO LTD

Method, apparatus, system, and non-transitory computer readable medium for user verification and authentication

A method, apparatus, system, and non-transitory computer readable medium for performing user verification and authentication may include receiving a network request from a client device associated with an online service in response to a user access attempt of the online service associated with a user, the network request including message recipient information for a mobile-terminated (MT) short message service (SMS) message and a unique one-time password or pin (OTP) code associated with the user, calculating at least one first signature based on the network request and a shared secret key, the shared secret key shared with the client device, the at least one first signature associated with the user, transmitting a network response to the client device, the network response causing the client device to transmit a call-to-action (CTA) message to at least one user device associated with the user, and determining a status of the user access attempt.
Owner:MUNOMO LLC

Reliable emergency short message service over internet protocol (IP) multimedia subsystem (IMS)

Techniques are described for sending an emergency related Short Message Service message (SM) from a user equipment (UE) to a Public Safety Answering Point (PSAP) with higher reliability and security and lower delay than with previous techniques. Following detection of a user input emergency SM, a UE establishes a Session Initiation Protocol (SIP) dialogue with a PSAP, where the SIP dialogue has no active SIP media, which can be compliant with SIP protocol rules. The emergency SM is sent to the PSAP in association with the SIP dialogue, as are any subsequent SMs, and PSAP SM replies are similarly returned to the UE. Media such as voice may be added and previous restrictions on support of UEs that are roaming or in limited service state can be overcome.
Owner:QUALCOMM INC

Geological disaster monitoring and emergency prevention and control integrated system and method based on AI edge box

The invention discloses a geological disaster monitoring and emergency prevention and control integrated system and method based on an AI edge box, and belongs to the technical field of geological disaster prevention and control and emergency navigation. The system comprises a sensing layer, a transmission layer, a platform layer and an application layer, the sensing layer constructs a multi-source intelligent sensing network through a Beidou GNSS high-precision monitoring station and an AI edge calculation box, and millisecond identification and data preprocessing of disaster symptoms are achieved; the transmission layer constructs a heterogeneous redundant communication link with a Beidou short message through a 4G / 5G public network and a Mesh ad hoc network, so as to ensure that disaster information is never disconnected in an extreme environment; the platform layer fuses multi-source data and carries out trend analysis and early warning based on a time sequence prediction model; the application layer provides risk avoiding, rescue and post-disaster livelihood navigation services according to real-time disaster situations. According to the invention, full-closed-loop management from disaster sensing to emergency prevention and control is realized, the monitoring real-time performance, the early warning precision and the communication stability are improved, the deployment and operation and maintenance cost is reduced, and the system can be widely applied to geological disaster-prone areas such as mountainous areas.
Owner:HUNAN UNIV OF SCI & TECH

Short message template intelligent matching and effect prediction optimization method for industry scene

The invention relates to the technical field of short message sending, in particular to an industry scene-oriented short message template intelligent matching and effect prediction optimization method, which is applied to a short message service platform carrying a machine learning inference engine. Industry scene features and user response attenuation features are extracted through block processing and a community detection algorithm; and based on scene time sequence evolution analysis and in combination with effect stage modeling, dynamic prediction of short message effect attenuation is realized. And then constructing an industry knowledge graph, predicting the potential effect risk of the template, performing semantic association matching in combination with a multi-strategy library, generating an effect risk management plan, and finally realizing real-time dynamic optimization of the short message template. According to the method, the scene adaptability, the prediction accuracy and the strategy matching degree are effectively improved, and the short message marketing effect and the resource utilization rate are remarkably optimized.
Owner:深圳市智信科技有限公司

Intelligent short message sending method and system

The invention provides an intelligent short message sending method and system, and belongs to the technical field of communication. The method comprises the following steps: acquiring configuration information of each short message supplier from a configuration database, wherein the configuration information comprises an initial weight ratio, a supplier starting state and an available channel number; screening out available suppliers according to the configuration information; dynamically adjusting the weight ratio of each available supplier according to the short message service type; selecting a supplier through a weighted random algorithm according to the adjusted weight ratio of each available supplier; based on the short message service type, matching an optimal short message content template through a preset template mapping library, and performing template filling by using data uploaded by an external system to obtain a short message to be sent; and calling the selected supplier to send the short message to be sent. According to the invention, the short message supplier is intelligently matched according to the actual short message service demand, and the efficient and accurate sending of the short message is realized.
Owner:CHERY HUIYIN MOTOR FINANCE SERVICE CO LTD

MPS handling for SMS over nas

Methods and apparatus are provided for supporting Multimedia priority services (MPS) for SMS over NAS. The method is performed by an Access and Mobility management Function (AMF) or an SMS function (SMSF) used for the UE, and comprises obtaining for the UE subscription data comprising MPS for short message indication and setting a message priority header based on the obtained MPS for short message indication when the MPS for short message indication indicates MPS is to be applied for short message service in messages transmitted between the AMF and the SMSF associated with the UE.
Owner:TELEFONAKTIEBOLAGET LM ERICSSON (PUBL)

Beidou-based unmanned aerial vehicle global course flight automatic control system and method

The invention discloses a Beidou-based unmanned aerial vehicle global course flight automatic control system and method, and belongs to the technical field of unmanned aerial vehicle flight control. The airborne end equipment integrates a main control processing unit, a Beidou RNSS positioning module, a Beidou RDSS communication module and a flight control protocol conversion middleware, and is responsible for acquiring the position and attitude information of the unmanned aerial vehicle in real time, packaging the information into a state monitoring message and returning the state monitoring message; and the ground monitoring platform receives the analysis message and displays the state of the unmanned aerial vehicle in real time. The core lies in that a track deviation model and a pure tracking control algorithm are built in the ground monitoring platform, the three-dimensional deviation between the unmanned aerial vehicle and a preset route is solved in real time through a mathematical method, and a control instruction is automatically generated and packaged into a Beidou control message to be issued; the airborne end device issues instructions such as return flight and course correction to the unmanned aerial vehicle flight control through the protocol conversion middleware, and a remote control closed loop is formed. According to the invention, geographical restrictions of traditional ADS-B and 5G technologies are overcome by using the Beidou short message, and reliable technical guarantee can be provided for global safe flight of the low-altitude unmanned aerial vehicle.
Owner:SPACE STAR TECH CO LTD

Ship freight video monitoring processing device and method

The invention discloses a ship freight video monitoring processing device and method, and relates to a ship camera, a safety area database, a local video storage module, an LTE communication module, a cloud image and ship positioning information analysis system, a cloud video storage module, and a short message alarm module through cloud short message service (SMS). When the marine camera works, a shot video is stored in the video data storage module connected with the marine camera. Meanwhile, according to the characteristics of the carried cargoes, the images and the ship positions are transmitted to a cloud image data and ship positioning information analysis system at set intervals through an LTE communication module connected with the cloud image data and ship positioning information analysis system. And the cloud image data analysis system compares and analyzes the static image data, and automatically stores the images before and after the change and gives an alarm through a short message and the like once the change of the cargo carried by the ship is found, so that the automatic monitoring of the cargo is realized.
Owner:WUHU ANHANG E-COMMERCE CO LTD

Authentication system and authentication method

An authentication system includes a vehicle control device and a server, a first processor and a second processor. The first processor included in the vehicle control device may transmit a signal for requesting authentication information to the server, receive a signal containing first unique information from the server, receive a short message service (SMS) message containing second unique information, transmit a signal containing third unique information to the server based on identifying the second unique information corresponding to the first unique information, receive the authentication information from the server based on the transmitted signal containing the third unique information, and perform a service based on the authentication information. The second processor included in the server may transmit the authentication information to the vehicle control device.
Owner:HYUNDAI MOTOR CO LTD +1

Preventing fraud during SMSF registration

Described herein are a short message service function (SMSF) and unified data management node (UDM) configured to transmit and receive a permanent equipment identifier (PEI) associated with a user equipment (UE) during SMSF registration. After receiving the PEI from the SMSF, the UDM compares the received PEI to a PEI stored during a network registration for the UE. If there is a match, SMSF registration is allowed. If the received PEI does not match the stored PEI, SMSF registration is denied.
Owner:T MOBILE US INC

Satellite access network enhancements for store and forward operation

Systems and methods are disclosed for enhancing satellite access networks with Store and Forward (S&F) operation. The user equipment (UE) sends an Initial Attach Request message to a Mobility Management Entity on a satellite (MME-SAT) indicating S&F operation support. The UE receives an Attach Reject message with a cause value and timer value, both protected by a digital signature, and validates the signature using preconfigured root certificates or a public certificate of the operator. For Mobile Originated Short Message Service (MO SMS), the UE establishes a connection with the MME-SAT, sends the MO SMS, and receives an immediate delivery report from the MME-SAT. The MME-SAT forwards the MO SMS to the SMS-Gateway Mobile Switching Center (SMS-GMSC).
Owner:INTEL CORP

Short message reach analysis method and device, computer device and readable storage medium

The application discloses a short message reach analysis method based on a data model. The short message reach analysis method based on the data model comprises the following steps: obtaining usage data of a user using an application program, the usage data being related to a short message service and / or an order placing behavior; analyzing, based on the usage data and the data model, an analysis result of whether the short message reach is used; verifying the analysis result based on a preset verification model to obtain a verification result; and modifying the data model based on the verification result. The application also discloses a short message reach analysis device based on the data model, a computer device and a computer readable storage medium. The data model obtains the analysis result of whether the short message reach is used based on the usage data of the user using the application program, the analysis result is further verified by the verification model, and the data model is further optimized according to the verification result, so that the objectivity and accuracy of the analysis result analyzed by the data model are higher.
Owner:SHENZHEN YISHIHUOLALA TECH CO LTD

Deep ground medical first-aid digital twinning method and system based on environmental physiological coupling algorithm

The invention discloses a deep ground medical first-aid digital twinning method based on an environmental physiological coupling algorithm. The method comprises the following steps: data acquisition and digital twinning modeling; matching first-aid knowledge; generating an intelligent first-aid scheme; and scheme execution and real-time feedback: pushing the scheme to a deep ground rescue terminal through ultralow frequency communication and Beidou short message double links, receiving execution state feedback in real time, updating the digital twin model, and dynamically adjusting the scheme according to environment and physiological data changes to form closed-loop management. The method has the advantages that the environment and physiology coupling algorithm conducts collaborative modeling through multiple parameters such as temperature, pressure, gas concentration and humidity, the limitation of traditional single parameter correlation is broken through, and the comprehensive influence of the deep complex environment on core physiological indexes such as the heart rate, blood oxygen and body temperature of the human body can be dynamically and accurately reflected; the problem that in an existing scheme, the environment scene is disjointed with the human physiological state is effectively solved, and it is ensured that the first-aid scheme can meet the real physiological needs of trapped people.
Owner:YUNLONG LAKE LAB OF DEEP UNDERGROUND SCI & ENG +1

Unmanned aerial vehicle cluster autonomous decision-making method and system integrating Beidou enhancement service and multi-source perception

The invention discloses an unmanned aerial vehicle cluster autonomous decision-making method and system fusing Beidou enhancement service and multi-source perception, and the method comprises the steps: enabling each unmanned aerial vehicle to receive a satellite-based enhancement signal, carrying out the real-time calculation of the satellite-based enhancement signal through employing a precise single-point positioning technology, and obtaining precise PVT information; each unmanned aerial vehicle synchronously collects sensor information, carries out space-time alignment on the sensor information and the precise PVT information, and processes local sensing features and wide-area geographic information by using an information fusion model to generate a global environment situation tensor; inputting the global environment situation tensor into a deep reinforcement learning strategy network to obtain a task instruction set; carrying out consensus confirmation on key instructions in the task instruction set by utilizing a Beidou global short message to obtain a task instruction after consensus; and each unmanned aerial vehicle performs collaborative operation based on the task instruction after consensus, performs real-time fusion on new perception data generated in the execution process and precise PVT information, and inputs the fused data into the information fusion model again to complete an autonomous decision closed loop.
Owner:KUNMING UNIV OF SCI & TECH

Short message short chain multi-dimensional feature intelligent interception system

The invention discloses a short message short chain multi-dimensional feature intelligent interception system, and belongs to the technical field of telecommunication. The system comprises a data acquisition module, a feature extraction module, an intelligent analysis module, an interception execution module, a data storage module and a tracking service module, multi-dimensional data acquisition and refined feature extraction are carried out, short message service core data and position information of a sender and a receiver are acquired, three-dimensional key features of short chains, content and positions are extracted, and the tracking service module is used for tracking the short message service core data and the position information of the sender and the receiver. A comprehensive data source is provided for risk judgment, hierarchical intelligent evaluation is carried out, comprehensive risk scores are calculated according to feature weights, four-level risk levels are refined, risk grading accuracy is ensured, interception strategies are configured in a grouping mode based on user positions and behavior habits, and high-risk sender tracking and receiver position scenarized adjustment strategies are achieved. Thousands of people and scene protection are achieved, regional risks are restrained from the source of a sender through position dynamic management and control, different scene protection intensities are adapted to a receiver, and the flexibility and accuracy of an interception strategy are further improved.
Owner:深圳众投互联信息技术有限公司

Short message processing method in non-ground network scene and related equipment

The invention provides a short message processing method in a non-ground network scene and related equipment, and relates to the technical field of wireless communication. The method is applied to a non-terrestrial network element, and comprises the following steps: feeding back a request retransmission time parameter to a terrestrial short message service network element, the request retransmission time parameter being used for indicating downlink short message retransmission time. The short message storage and forwarding method and device can guarantee smooth short message storage and forwarding in a non-ground network scene, and improve the success rate of short message storage and forwarding in the non-ground network scene.
Owner:CHINA TELECOM CORP LTD TECHNOLOGY INNOVATION CENTER +1

Information transmission methods, devices, terminals and network-side equipment

This application discloses an information transmission method, apparatus, terminal, and network-side device, belonging to the field of communication technology. The information transmission method of this application includes: a terminal sending a first NAS message to a first network element; wherein, the first NAS message includes at least one target container, the target container includes information related to a target service supported by the terminal, and the target service includes at least one of the following: location service, IMS service, AI service, computing power service, AIoT service, sensing service, slicing service, V2X service, satellite service, proximity service, immersive service, data service, short message service, energy saving service, task service, and security service.
Owner:VIVO MOBILE COMM CO LTD

Method for generating EMM transport message

According to one embodiment of this specification, there is provided an operation method of user equipment (UE). The method may comprise: if the UE is using an Evolved Packet System (EPS) service with control plane Cellular Internet of Things (CIoT) EPS optimization with overhead reduction, generating an EPS Mobility Management (EMM) transport message. The EMM transport message may include a protocol discriminator, a security header type, a message authentication code and a sequence number. If the EMM transport message is sent in an EMM data transport procedure or if the EMM transport message is sent in a service request procedure for UE using the EPS service with control plane CIoT EPS optimization with overhead reduction to send a user data, a short message service (SMS) message or a location service (LCS) message, the EMM transport message may further include a data container.
Owner:H3NITY CO LTD

Location service and short message service enhancements for user equipment with multiple registrations to mobile communication system

Apparatus, systems, and methods for location service and short message service enhancement for user equipment having multiple registers with a 5G system. In one embodiment, a method includes receiving a first preference indicator for a first registration of a user equipment, the first registration supported by a first serving network function via a first access, the first preference indicator indicating whether the first registration of the user equipment is preferred for a service delivering a communication system to the user equipment. The first preference indicator is stored at the UDM. A second preference indicator is received for a second registration of the user equipment, the second registration being supported by the first serving network function or the second serving network function via the second access, and the second preference indicator being different from the first preference indicator. The second preference indicator is stored at the UDM.
Owner:NOKIA TECHNOLOGIES OY

Secured application-to-person SMS messaging

The present invention relates to a method for secure Application-to-Person, A2P, short messaging service, SMS, communication at a network node. The method comprises receiving an A2P SMS from an A2P sender for delivery to a subscriber and determining that the A2P SMS requires secure A2P SMS delivery to the subscriber. The method also comprises encrypting a payload of the A2P SMS using at least one pre-shared key, PSK, and an encryption algorithm, wherein the at least one PSK and the encryption algorithm have been securely provided to a SIM associated with the subscriber. The method further comprises encoding the encrypted A2P SMS payload to obtain an encoded A2P SMS payload and relaying the encoded A2P SMS payload to the SIM. A method for communication at a subscriber device comprising a SIM associated with a subscriber.
Owner:ANAM TECH

Short message sending method and device, equipment, storage medium and program product

The invention discloses a short message sending method and device, equipment, a storage medium and a program product, and the method comprises the steps: segmenting short message service flow according to preset time slice configuration, and obtaining short message data under a plurality of time slices; performing rate segmentation on the plurality of channel resources according to a preset rate arrangement strategy and a thread concurrency number to obtain rate configuration of a plurality of threads of each channel resource; wherein the rate arrangement strategy is used for indicating rate configuration of each channel resource; binding the short message data with a plurality of threads so as to enable the threads to execute sending on the bound short message data in each time slice according to own rate configuration; according to time arrangement and careful division of the channel rate, the sending efficiency of a multi-short-message service large-batch sending scene can be improved, sudden surge short message data can be effectively dealt with, multi-short-message service channel blockage caused by short message backlog is avoided, and the success rate of short message service sending loss is improved.
Owner:CHINA MOBILE (SUZHOU) SOFTWARE TECH CO LTD +1

Enabling ordering through a client application through text messages when a client device lacks a data connection to a network

An online concierge system provides a client application executed on a client device for customers to generate orders for fulfillment by the online concierge system. If the client device is unable to establish a data connection to a network, the client application locally caches data on the client device for one or more retailers that includes items that have been previously purchased by the customer or that are popular among customers.  The customer generates an order through the client application for a retailer based on the locally cached items for the retailer. The online concierge system application generates an encrypted text message based on the order that is transmitted to the online concierge system via short message service (SMS). The online concierge system may also return messages via SMS, which may be presented by the client application.
Owner:MAPLEBEAR INC

A method, device, medium and terminal for synchronous observation of waves, tides and currents in the entire ocean area

The present invention belongs to the field of marine engineering technology and discloses a method, equipment, medium, and terminal for synchronous observation of waves, tides, and currents over the entire ocean area. The method comprises collecting GNSS phase, pseudorange, Doppler shift observations, and broadcast ephemeris using a GNSS receiver or board and antenna carried by a wave buoy on the ocean surface. The three-dimensional velocity of the buoy is obtained by epoch-by-epoch differential analysis of the phase observations, thereby obtaining the directional spectrum and frequency spectrum of the waves, as well as information on wave height, period, and direction. The sampling elements recorded by a shore-based station are sent to a GNSS receiver on the ocean surface via the Beidou short message service (BDS). Low-frequency sea surface height fluctuations are calculated in real time using the PPP method. Combined with the low-frequency velocity obtained by filtering, high-frequency tidal fluctuations are interpolated. The present invention expands the operating range of GNSS-based ocean wave and tide measurements and has practical application value.
Owner:FIRST INSTITUTE OF OCEANOGRAPHY MNR

A short message service channel resource allocation method, system, device and medium

This application discloses a method for allocating SMS service channel resources, including: receiving input business SMS data, performing logical processing on the business SMS data, and outputting the logically processed business SMS data; periodically collecting and storing attribute information of the business SMS data, and performing business type analysis, average rate analysis, and business success rate analysis on the attribute information; monitoring the operating status of the SMS service channel, collecting and storing SMS service channel parameters, periodically performing data quantitative analysis on the SMS service channel parameters, and calculating a comprehensive availability score for the SMS service channel within a period; and optimizing the allocation of SMS service channel resources, including allocating channel resources for new SMS services, recovering or expanding the channel capacity of existing SMS services, and reallocating channel resources for abnormally operating SMS services. This application also discloses an SMS service channel resource allocation system, device, and storage medium.
Owner:BEIJING GUODU INTERNET TECH CO LTD

Message sending method and device, communication equipment and storage medium

The invention relates to a message sending method and device, communication equipment and a storage medium, and relates to the technical field of communication. The method comprises the following steps: in response to a first message carrying first emergency information sent by a user terminal, generating a second message based on the first emergency information; sending a second non-access layer message to the short message service equipment; wherein the second message is used for indicating the short message service equipment to determine the message sending address and the emergency message content, and sending the emergency message content to the emergency service equipment pointed by the message sending address; the first message is a non-access stratum message. Therefore, the purpose of sending the emergency message content through the non-access layer is achieved, the short message service equipment can automatically determine the message sending address and the emergency message content based on the second message, the emergency message content can be sent without manually inputting the message sending address and the emergency message content by a user, and the user experience is improved. And the emergency message content sending efficiency is effectively improved.
Owner:CHINA TELECOM CORP LTD TECHNOLOGY INNOVATION CENTER +1

Marine positioning and search and rescue information coding method based on Beidou short message

The invention provides an offshore positioning and search and rescue information coding method based on a Beidou short message, which comprises the following steps: a server acquires an SSR data stream in real time, and preprocesses and compressively codes the SSR data; the server encapsulates the compressed and encoded SSR data into a Beidou short message service data unit, and broadcasts or multicasts the Beidou short message service data unit to an offshore terminal in a target sea area through a Beidou GEO satellite; the offshore terminal receives the Beidou short message and recovers the SSR data; based on the received GNSS observed quantity and SSR data, the offshore terminal carries out three-dimensional position and speed estimation and obtains a horizontal precision factor at the same time; the maritime terminal encodes rescue information containing three-dimensional position and speed estimation and a horizontal precision factor, packages the rescue information into a rescue short message, and sends the rescue short message to the outside through a Beidou satellite according to a rescue judgment rule; and the received rescue short message is analyzed, and rescue decision and scheduling are carried out according to data obtained through analysis.
Owner:NANJING UNIV OF AERONAUTICS & ASTRONAUTICS

Self-contained tide gauge with positioning and data remote transmission function

A self-contained tide gauge with positioning and data remote transmission function, including shell and pressure sensor, data acquisition and processing unit, storage unit, Beidou positioning communication unit and power supply unit arranged in the shell, the data acquisition and processing unit includes signal conversion device and signal amplifier, the signal conversion device is electrically connected with the pressure sensor, the signal amplifier is electrically connected with the signal conversion device, the storage unit is electrically connected with the signal amplifier, the Beidou positioning communication unit receives Beidou navigation satellite signal to realize positioning, and transmits positioning data and pressure data to the onshore control end through Beidou short message service, and the power supply unit is electrically connected with other components.The utility model discloses through increasing Beidou communication module, through Beidou short message to the onshore control end position information of self-contained tide gauge is sent in time and the tide level data of continuous back transmission acquisition is guaranteed, and the abnormality such as the instrument can be timely and effectively recovered after being fished out of water by fishing net and so on the tide data of acquisition is verified.
Owner:BEIHAI NAVIGATION GUARANTEE CENT OF THE MINISTRY OF TRANSPORT TIANJIN MARITIME SURVEYING & MAPPING CENT