A beidou short message-based earthquake station remote monitoring terminal and method

Abstract

The application provides a seismic station remote monitoring terminal and method based on a Beidou short message, and relates to the technical field of seismic observation remote monitoring. The terminal comprises a main control module, a network port communication module, an information storage module, a Beidou remote communication module and a man-machine interaction module. The network port communication module receives network data packets of a seismic data collector, the main control module analyzes and extracts device states and key parameters, forms station state data, encapsulates the station state data into state monitoring messages, and sends the state monitoring messages to a remote data center through the Beidou remote communication module; after being analyzed, remote configuration instructions or control commands are converted into local control instructions and are issued, and response data of execution is returned. The application can realize state reporting, remote control and execution confirmation in a mobile communication network-free scene.

Description

Technical Field

[0001] This invention relates to the field of remote monitoring technology for earthquake observation, and in particular to a remote monitoring terminal and method for earthquake stations based on BeiDou short message service. Background Technology

[0002] Seismic observation stations are often deployed in remote, field areas, some of which lack stable mobile communication network coverage. Seismic data acquisition devices operate unattended for extended periods, requiring the transmission of equipment status, power supply status, storage capacity, recording status, and observation parameters to a remote data center for remote monitoring and necessary maintenance. Existing solutions attempt to utilize BeiDou short message communication for remote monitoring of seismic stations. These solutions can parse and adapt communication protocols for seismic data acquisition devices and achieve status feedback, parameter setting, and basic control via satellite links.

[0003] BeiDou short message communication provides a communication foundation for remote monitoring of seismic stations in scenarios without terrestrial communication network coverage. The seismic station monitoring terminal can establish a local communication link with the seismic data acquisition unit via its network port, read the device status and key parameters of the data acquisition unit, and after protocol parsing and message encapsulation of the network data packets output by the data acquisition unit, send them to the remote data center via the BeiDou communication link. The remote data center can also issue configuration instructions and control commands via the BeiDou communication link, enabling the station to receive remote commands and provide feedback on the execution results.

[0004] However, for the long-term deployment needs of mobile seismic observation stations, existing remote monitoring terminals for seismic stations still struggle to reliably perform low-power remote monitoring of seismic data acquisition device status data, remote command reception, and execution result feedback in field environments with limited mobile communication network coverage or ground communication conditions. Therefore, a remote monitoring terminal for seismic stations is needed that can perform local access, protocol parsing, short message encapsulation, status reporting, and remote command interaction for seismic data acquisition devices. Summary of the Invention

[0005] The purpose of this invention is to provide a remote monitoring terminal and method for seismic stations based on BeiDou short message service. This method can solve the problems of difficulty in remotely monitoring the status data of seismic data acquisition devices and difficulty in issuing and confirming the execution results of remote commands in scenarios without mobile communication network coverage. It enables the reporting of seismic data acquisition device status data via BeiDou short message service, the conversion and issuance of remote configuration commands or control commands, and the feedback of execution response data.

[0006] To achieve the above objectives, the present invention provides the following solution: A remote monitoring terminal for seismic stations based on BeiDou short message service includes a main control module, a network communication module, an information storage module, a BeiDou remote communication module, and a human-computer interaction module. The network communication module is connected to the main control module. The network communication module is used to establish a local communication link with the seismic data acquisition device and to receive network data packets from the seismic data acquisition device. The main control module is used to parse network data packets, extract device status and key parameters, form station status data, and encapsulate the station status data into status monitoring messages suitable for BeiDou short message transmission. The information storage module is connected to the main control module. The information storage module is used to cache the status monitoring messages to be sent, as well as the configuration instructions or control commands received by the Beidou remote communication module. The Beidou remote communication module is connected to the main control module. The Beidou remote communication module is used to send status monitoring messages to the remote data center and receive configuration instructions or control commands from the remote data center. The main control module is also used to parse configuration instructions or control commands, generate local control instructions adapted to the seismic data acquisition device, and send the local control instructions to the seismic data acquisition device through the network communication module. The main control module is also used to receive the execution response data returned by the seismic data acquisition unit in response to the local control command through the network port communication module, and to encapsulate the execution response data into a response message suitable for BeiDou short message transmission; The BeiDou remote communication module is also used to send response messages to a remote data center; The human-computer interaction module is connected to the main control module and is used to configure local communication parameters and remote communication parameters.

[0007] Preferably, the main control module is connected to the network communication module through a data interface for local network communication, to the information storage module through a data interface for reading and writing cached data, to the BeiDou remote communication module through a data interface for BeiDou short message interaction, and to the human-machine interaction module through a data interface for local parameter configuration.

[0008] Preferably, the network communication module includes a standard Ethernet interface, a physical layer interface chip, and a network transformer; the standard Ethernet interface is used to connect to the seismic data acquisition device, the network transformer is used to isolate the network physical layer signals from the seismic data acquisition device, the physical layer interface chip is used to condition the network physical layer signals isolated by the network transformer, and transmit the conditioned data to the main control module through a data interface for local network communication.

[0009] Preferably, the main control module is configured to parse network data packets according to the communication protocol of the seismic data acquisition device, extract the device status and key parameters that characterize the operating status of the seismic data acquisition device from the network data packets, and organize the device status and key parameters into station status data according to data categories; the device status includes at least one of voltage, temperature, storage capacity and recording status, and the key parameters include observation parameters.

[0010] Preferably, the main control module is configured to perform field filtering and format conversion on the equipment status and key parameters in the station status data according to the transmission capacity of Beidou short messages, and organize the station status data after field filtering and format conversion into status monitoring messages.

[0011] Preferably, the information storage module is provided with a status monitoring message cache area and a remote command cache area; the status monitoring message cache area is used to cache status monitoring messages to be sent, and the remote command cache area is used to cache configuration commands or control commands received by the Beidou remote communication module; when the Beidou remote communication module is in a communication intermittent period or in a communication abnormal state, the information storage module retains the status monitoring messages, configuration commands or control commands to be sent.

[0012] Preferably, the main control module is configured to identify the instruction type of the configuration instruction or control command, convert the configuration instruction or control command into a local control instruction that conforms to the communication protocol of the seismic data acquisition device according to the instruction type, and send the local control instruction to the seismic data acquisition device through the network port communication module.

[0013] A remote monitoring method for seismic stations based on BeiDou short message service is applied to a monitoring terminal. The monitoring terminal includes a main control module, a network communication module, an information storage module, a BeiDou remote communication module, and a human-computer interaction module. The method includes: Based on the local and remote communication parameters configured in the human-computer interaction module, a local communication link is established with the seismic data acquisition device, and a BeiDou short message communication link is established with the remote data center. The network communication module receives network data packets from the seismic data acquisition unit, performs protocol parsing on the network data packets, extracts equipment status and key parameters, and forms station status data. The station status data is encapsulated into status monitoring messages suitable for BeiDou short message transmission, and the status monitoring messages are cached in the information storage module. The Beidou remote communication module sends status monitoring messages to the remote data center and receives configuration instructions or control commands from the remote data center. Parse configuration instructions or control commands, generate local control instructions adapted to the seismic data acquisition device, and send the local control instructions to the seismic data acquisition device through the network port communication module; The network port communication module receives the execution response data returned by the seismic data acquisition unit in response to local control commands, encapsulates the execution response data into a response message suitable for BeiDou short message transmission, and sends the response message to the remote data center through the BeiDou remote communication module.

[0014] Preferably, the steps for generating station status data include: Parse network data packets according to the communication protocol of the seismic data acquisition device, and identify the status and parameter fields in the network data packets; Extract the device status from the status field and extract key parameters from the parameter field; Organize equipment status and key parameters into station status data according to data categories; Equipment status includes at least one of voltage, temperature, storage capacity, and recording status, and key parameters include observation parameters.

[0015] Preferably, the step of generating local control commands and encapsulating response messages includes: Identify the instruction type of configuration instructions or control commands; Based on the instruction type, configuration instructions or control commands are converted into local control instructions that conform to the communication protocol of the seismic data acquisition device; The network communication module sends local control commands to the seismic data acquisition unit and receives the execution response data returned by the seismic data acquisition unit in response to the local control commands. The execution response data is encapsulated into a response message suitable for BeiDou short message transmission, and the response message is sent to the remote data center through the BeiDou remote communication module.

[0016] The present invention discloses the following beneficial effects: This invention establishes a local communication link between the seismic data acquisition device and the network port communication module, enabling network data packets from the seismic data acquisition device to enter the monitoring terminal for processing. This solves the problem of difficulty in integrating the device status of the seismic station into the remote monitoring process in scenarios without mobile communication network coverage. The main control module performs protocol parsing on the network data packets, extracting device status and key parameters to form station status data. This station status data is then encapsulated into status monitoring messages suitable for BeiDou short message transmission, ensuring that the content received by the remote data center is no longer limited to the raw network data packets but is transformed into monitoring data reflecting the station's operational status. This is achieved through information storage... The storage module caches pending status monitoring messages, configuration instructions, and control commands, reducing the impact of BeiDou short message communication interruptions on status reporting and command reception. The BeiDou remote communication module sends status monitoring messages and receives configuration instructions or control commands. The main control module then generates local control commands adapted to the seismic data acquisition unit and encapsulates the execution response data into a response message, which is then sent back to the remote data center. This allows a single remote interaction to cover the three stages of status reporting, remote command issuance, and execution result feedback, thereby enabling remote monitoring and remote control confirmation of seismic data acquisition unit status data in field station environments where ground communication conditions are limited. Attached Figure Description

[0017] To more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the drawings used in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0018] Figure 1 This is a schematic diagram of the structure of a remote monitoring terminal for seismic stations based on BeiDou short messages provided in an embodiment of the present invention; Figure 2 This is a schematic diagram of the internal module structure of the remote monitoring terminal for seismic stations provided in an embodiment of the present invention; Figure 3 A schematic diagram of the external structure of the remote monitoring terminal for seismic stations provided in an embodiment of the present invention; Figure 4 This is a schematic diagram of the interface connection of the remote monitoring terminal for seismic stations provided in an embodiment of the present invention; Figure 5 A flowchart of a remote monitoring method for seismic stations based on BeiDou short messages provided in an embodiment of the present invention. Detailed Implementation

[0019] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0020] To make the above-mentioned objects, features and advantages of the present invention more apparent and understandable, the present invention will be further described in detail below with reference to the accompanying drawings and specific embodiments.

[0021] This embodiment provides a remote monitoring terminal for seismic stations based on BeiDou short message service. The remote monitoring terminal is deployed at field seismic stations where there is no mobile communication network coverage or where ground communication conditions are limited. One end of the remote monitoring terminal establishes local communication with the seismic data acquisition device, while the other end establishes remote communication with a remote data center via BeiDou short message service. The remote monitoring terminal can acquire the device status and key parameters of the seismic data acquisition device, organize the device status and key parameters into station status data, and encapsulate the station status data into a status monitoring message suitable for BeiDou short message transmission before sending it to the remote data center. After the remote data center issues configuration instructions or control commands, the remote monitoring terminal can parse the configuration instructions or control commands, generate local control instructions adapted to the seismic data acquisition device, and encapsulate the execution response data returned by the seismic data acquisition device into a response message and send it back to the remote data center.

[0022] like Figure 1As shown, the remote monitoring terminal for the seismic station includes a main control module, a network communication module, an information storage module, a BeiDou remote communication module, and a human-machine interaction module. The network communication module is connected to the main control module and is used to establish a local communication link with the seismic data acquisition device and receive network data packets from the data acquisition device. The main control module is used to parse the network data packets according to protocols, extract device status and key parameters, form station status data, and encapsulate the station status data into status monitoring messages suitable for BeiDou short message transmission. The information storage module is connected to the main control module and is used to cache status monitoring messages to be sent, as well as configuration instructions or control commands received by the BeiDou remote communication module. The BeiDou remote communication module is connected to the main control module and is used to send status monitoring messages to a remote data center and receive configuration instructions or control commands from the remote data center. The main control module is also used to parse configuration instructions or control commands, generate local control commands adapted to the seismic data acquisition device, and send the local control commands to the seismic data acquisition device through the network communication module. The main control module is also used to receive execution response data returned by the seismic data acquisition unit in response to local control commands via the network port communication module, and to encapsulate the execution response data into a response message suitable for BeiDou short message transmission. The BeiDou remote communication module is also used to send the response message to a remote data center. The human-machine interface module is connected to the main control module and is used to configure local communication parameters and remote communication parameters.

[0023] like Figure 2 As shown, in one implementation, the main control module is connected to the network communication module via a data interface for local network communication, to the information storage module via a data interface for reading and writing cached data, to the BeiDou remote communication module via a data interface for BeiDou short message interaction, and to the human-machine interaction module via a data interface for local parameter configuration. Specifically, the main control module can be an STM32 series industrial-grade microcontroller. For example, the main control module can be an STM32F407VG. The main control module can be connected to the network communication module via an RMII interface, to the information storage module via an SPI interface, to the BeiDou remote communication module via a UART interface, and to the human-machine interaction module via a UART interface.

[0024] The main control module performs protocol processing, data encapsulation, task scheduling, parameter management, and low-power control. Protocol processing involves parsing network data packets from the seismic data acquisition unit to extract device status and key parameters. Data encapsulation involves converting device status and key parameters into a message format suitable for BeiDou short message transmission and local access. Task scheduling manages the execution sequence of tasks such as network communication, BeiDou communication, Wi-Fi service, data storage, log recording, and local configuration. Parameter management involves reading, modifying, and saving local communication parameters, remote communication parameters, acquisition unit network configuration parameters, and seismic station parameters. Low-power control controls the power supply and operating status of the main control module, BeiDou remote communication module, network communication module, and human-machine interface module under different working conditions.

[0025] The main control module's input data includes data returned by the data acquisition unit, BeiDou downlink data, and local configuration data. Data returned by the data acquisition unit consists of network data packets or execution response data sent by the seismic data acquisition unit via the network port communication module. BeiDou downlink data consists of configuration instructions or control commands sent by the remote data center via the BeiDou remote communication module. Local configuration data consists of configuration instructions, query instructions, log reading instructions, or firmware upgrade data sent by the field equipment via the human-machine interface module. The main control module's output data includes data acquisition unit command data, BeiDou uplink messages, log reading results, and instruction execution results. Data acquisition unit command data is sent to the seismic data acquisition unit via the network port communication module. BeiDou uplink messages include status monitoring messages and response messages, and are sent to the remote data center via the BeiDou remote communication module. Log reading results and instruction execution results are sent to the field equipment via the human-machine interface module.

[0026] After power-on, the main control module performs system initialization, configuring the clock, GPIO, UART interface, SPI interface, RMII interface, RTC, watchdog timer, and interrupt services, and reads key configuration parameters from the internal Flash memory. These key configuration parameters include local ID, target ID, automatic transmission cycle, signal-to-noise ratio threshold, data acquisition network configuration parameters, and seismic station parameters. Once the main control module enters its main loop, it manages data acquisition queries, BeiDou transmission, log writing, parameter saving, and watchdog timer refresh via software-timed tasks. The main control module polls and processes instructions from the human-machine interface module, downlink data from the BeiDou remote communication module, and network data packets received from the Ethernet communication module, updating its internal state structure after parsing. This internal state structure stores voltage, temperature, storage capacity, recording status, GPS lock status, station name, sampling rate, channel gain, data format, record length, and sequence number.

[0027] The network communication module is used to establish a local communication link with the seismic data acquisition unit. The seismic data acquisition unit can be a Reftek-130 model. The network communication module includes a standard Ethernet interface, a physical layer interface chip, and a network transformer. The standard Ethernet interface is used to connect to the seismic data acquisition unit. The network transformer is used to isolate the network physical layer signals transmitted between the seismic data acquisition unit and the main control module. The physical layer interface chip is used to condition the network physical layer signals from the seismic data acquisition unit. The conditioned and isolated network data is transmitted to the main control module via the RMII interface. The main control module then receives the network data packets from the seismic data acquisition unit and parses them according to the seismic data acquisition unit's communication protocol.

[0028] In one implementation, the network communication module reads the data acquisition unit's network configuration parameters from its internal Flash memory. These parameters include the data acquisition unit's IP address, control port, and data port. The network communication module establishes a TCP connection with the seismic data acquisition unit based on these parameters and registers for network callback reception. The main control module generates query or setting commands conforming to the seismic data acquisition unit's communication protocol based on scheduled tasks or configuration instructions or control commands issued by a remote data center, and sends these commands to the seismic data acquisition unit via the TCP connection. The query command retrieves the seismic data acquisition unit's status and parameter information, while the setting command sets the seismic data acquisition unit's modifiable operating parameters.

[0029] After receiving the data packet returned by the seismic data acquisition unit, the network communication module transmits the packet to the main control module. The main control module performs length verification and checksum verification on the data packet. CRC checksum verification can be used. After successful verification, the main control module parses the data packet according to the seismic data acquisition unit's communication protocol to extract key data required for seismic observation. Key data includes at least one of the following: acquisition unit type, acquisition unit model, RAM or storage capacity, power supply voltage, temperature, GPS lock status, longitude, latitude, altitude, station name, sampling rate, data format, record length, channel gain, and serial number. If a data packet contains multiple command results, the main control module parses each command result in the data packet in a loop until all command results have been processed.

[0030] When the main control module performs protocol parsing on network data packets, it identifies the status and parameter fields within the packets. The status field carries the device status of the seismic data acquisition unit, while the parameter field carries its key parameters. Device status includes at least one of voltage, temperature, storage capacity, and recording status. Key parameters include observation parameters. The main control module extracts the device status from the status field and the key parameters from the parameter field, organizing them into station status data according to data category. Station status data includes brief status data, detailed status data, acquisition parameter data, and device parameter data. Brief status data reflects whether the seismic data acquisition unit is currently in normal working condition. Detailed status data reflects operational details such as power supply, temperature, storage, GPS, and recording status. Acquisition parameter data reflects the data acquisition configuration of the seismic data acquisition unit. Device parameter data reflects the BeiDou communication configuration and local network configuration of the seismic station's remote monitoring terminal.

[0031] After the main control module generates station status data, it performs field filtering and format conversion on the data according to the transmission capacity of BeiDou short messages, and then organizes the filtered and converted station status data into status monitoring messages. Status monitoring messages are suitable for BeiDou short message transmission. A status monitoring message includes a message type identifier, a target identifier, a communication frequency, message content, and verification information. The message type identifier distinguishes the category to which the message content belongs. The target identifier indicates the remote data center or the target BeiDou terminal. The communication frequency corresponds to the frequency parameters in the BeiDou short message transmission command. The message content carries the station status data. The verification information is used to verify the status monitoring message.

[0032] In one implementation, the main control module generates Class I status messages, Class II status messages, acquisition parameter messages, and device parameter messages according to a custom format. Class I status messages can use #S1 as the message type identifier. Class I status messages carry brief status data, including the logger type, serial number, memory usage, hard disk usage, power supply voltage, temperature, GPS lock quality, number of satellites, clock error, lock time, and the centroid position voltages of the Z, N, and E axes. Class II status messages can use #S2 as the message type identifier. Class II status messages carry detailed status data, including the station name, memory size, hard disk size, longitude, latitude, and elevation. Acquisition parameter messages can use #P as the message type identifier. Acquisition parameter messages carry acquisition parameter data, including the station name, experiment name, channel gain, seismograph type, seismograph serial number, sampling rate, record length, and data format. Device parameter messages can use #G as the message type identifier. The device parameter message carries device parameter data. This data includes the command center number, automatic transmission interval, collector IP address, control port, data port, local IP address, repetition count, device serial number, software version number, signal-to-noise ratio threshold, and BeiDou card type.

[0033] The BeiDou remote communication module is used to establish BeiDou short message communication between the remote monitoring terminal of the seismic station and the remote data center. The BeiDou remote communication module integrates the BeiDou short message module. The BeiDou short message module supports BeiDou-3 short message service and is compatible with BeiDou-2 short message service. The BeiDou remote communication module communicates with the main control module via a UART interface. After power-on and initialization, the BeiDou remote communication module outputs communication status information to the main control module. This communication status information may include at least one of the following: signal quality status, transmission request processing status, transmission suppression status, and frequency waiting time. Different BeiDou short message modules may output different status field names, units, and value ranges. The main control module reads the corresponding status fields according to the interface protocol of the adopted BeiDou short message module and determines whether transmission conditions are met. Preset communication conditions can be configured based on the signal quality level, carrier-to-noise ratio, received signal strength, or other parameters characterizing communication availability output by the BeiDou short message module. Specific thresholds are determined based on the interface definition of the adopted module and the results of on-site communication tests. Upon initial power-on or when the local ID has not been acquired, the main control module sends a local ID acquisition command to the Beidou short message module. After acquiring the local ID, the module saves the local ID and uses it for subsequent short message communication.

[0034] When the BeiDou remote communication module reports its status, the main control module extracts the earthquake status information and parameter information to be reported from the station status data according to the system's timed triggers or request instructions issued by the remote data center, and generates #S1 Class I status message, #S2 Class II status message, #P acquisition parameter message, or #G device parameter message. The main control module further constructs a BeiDou short message sending command. The BeiDou short message sending command includes the target ID, communication frequency, message content, and verification information. The main control module sends the BeiDou short message sending command to the BeiDou remote communication module via the UART interface. As an example, the communication request command can use the TCQ type command supported by the selected BeiDou short message module, and the local transmission processing feedback can use FKI type feedback information. The specific command identifier and field format are determined according to the interface protocol of the BeiDou short message module used. The BeiDou remote communication module initiates short message transmission according to the BeiDou short message sending command and returns local transmission processing feedback to the main control module. Local transmission processing feedback is used to characterize the processing status of the BeiDou remote communication module for this transmission request, and is not the sole basis for confirmation that the remote data center has received the message. The main control module records the local transmission processing feedback and adjusts subsequent transmission strategies based on the transmission request processing status, transmission suppression status, or frequency waiting time.

[0035] In one implementation, the remote monitoring terminal of the seismic station operates in a periodic monitoring mode. The main control module sets the RTC wake-up time according to the automatic transmission cycle and enters a low-power state when there are no pending remote commands, local configuration tasks, or message transmission tasks. After the RTC wake-up time is reached, the main control module restores the system clock, starts the status reading function of the Beidou remote communication module, and reads the communication status information corresponding to this wake-up. The main control module only reads the communication status information when the Beidou remote communication module is in working state, and does not continuously read the signal quality when the Beidou remote communication module is powered off or in sleep mode.

[0036] When the communication status information indicates that the BeiDou remote communication module is still in a transmission suppression state or has not yet reached the time when retransmission is permitted, the main control module does not activate the network port communication module to query the status of the seismic data acquisition device, nor does it execute BeiDou short message transmission. The main control module prioritizes using the frequency waiting time fed back by the BeiDou remote communication module to determine the next wake-up time; if the BeiDou short message module does not directly output the frequency waiting time, the main control module determines the next wake-up time based on the pre-configured short message service frequency, the last transmission request time, and the automatic transmission cycle. After completing the wake-up time update, the main control module controls the seismic station remote monitoring terminal to re-enter a low-power state.

[0037] When the BeiDou remote communication module does not directly output the frequency waiting time, the main control module calculates the remaining frequency waiting time for the nth status read using the following formula: In the formula, This represents the remaining frequency wait time at the nth state read. This indicates the minimum transmission interval corresponding to the BeiDou short message service used. This indicates the time of the nth state read; This indicates the moment when the last request was accepted by the BeiDou remote communication module. The maximum value operation ensures the result is not less than zero, preventing the terminal from incurring negative waiting time due to timing discrepancies.

[0038] The main control module further determines the target communication time according to the following formula: The next RTC wake-up time is determined according to the following formula: In the formula, Indicates the time of the next target communication; This indicates the next planned reporting time, determined based on the automatic sending cycle. Indicates the next RTC wake-up time; Indicates the minimum allowed sleep duration; This indicates the communication preparation time. The communication preparation time includes the reserved time required for the BeiDou remote communication module to start, the local network link to be established, the seismic data acquisition device status query, and the assembly of status monitoring messages. By first taking the later of the frequency-allowed time and the periodic planned reporting time, and then shifting the RTC wake-up time forward by the aforementioned communication preparation time, the monitoring terminal can avoid starting the communication module prematurely before it has the necessary conditions to send data, and reduce the probability of missing the target communication time due to the time spent on module startup and status query. The above time parameters are configured based on the interface response time of the BeiDou short message module used, the seismic data acquisition device, and the on-site power supply conditions, and are not limited to fixed values.

[0039] When the communication status information indicates that transmission is currently permitted and the signal quality meets the preset communication conditions, the main control module activates the network port communication module. If the physical layer interface chip loses power during low-power periods, the main control module, after the physical layer interface chip completes power-on initialization and link negotiation, re-establishes the TCP connection with the seismic data acquisition device based on the acquisition device's IP address, control port, and data port; if the network port communication module maintains the local communication link, the main control module restores the local communication link. The main control module sends a status query command to the seismic data acquisition device, receives and verifies the current device status and key parameters, and generates station status data corresponding to the current wake-up period based on the verified data.

[0040] The main control module generates a status monitoring message based on the station status data of the current wake-up period and controls the BeiDou remote communication module to enter the transmission working state. After the transmission request is issued, the main control module waits for local transmission processing feedback until it receives local transmission processing feedback or reaches the preset feedback waiting time. When local transmission processing feedback is received, the main control module records whether the transmission request was accepted, whether there is transmission suppression, and the frequency waiting time; if local transmission processing feedback is not received within the preset feedback waiting time, the main control module records the communication timeout status. For periodic status monitoring messages, after the next permitted transmission time arrives, the main control module re-acquires the current equipment status and key parameters of the seismic data acquisition device to avoid directly transmitting the earlier formed periodic status as the current station status.

[0041] To limit excessive lag in station status data transmission before sending periodic status monitoring messages, the main control module calculates the age of the status data using the following formula: In the formula, This indicates the age of the status data corresponding to the nth status monitoring message; This indicates the time when the status monitoring message was requested to be sent; This indicates the completion time of the collection of station status data used to generate this status monitoring message. The main control module compares the age of the status data with the preset allowed age. Compare; when At this time, the main control module does not directly send the original periodic status monitoring messages, but instead re-queries the seismic data acquisition device and updates the content to be sent with the newly obtained device status and key parameters. The preset allowable age is configured according to the automatic transmission cycle, the rate of change of seismic data acquisition device status, and the timeliness requirements of remote monitoring. Response messages and alarm messages do not undergo the above overwriting process to retain the corresponding command identifier, alarm identifier, and original response content.

[0042] In the power-priority implementation, after the main control module completes reading the local transmission processing feedback, it keeps the BeiDou remote communication module in a preset receiving state for a set duration to receive configuration instructions or control commands issued by the remote data center within the current communication window. If the preset receiving duration is exceeded and there are no pending remote instructions, the main control module shuts down communication functions that do not need to continue operating and enters a low-power state. In the remote command real-time priority implementation, the BeiDou remote communication module remains in a receiving standby state during non-transmission periods. The above two operating modes are configured according to the power supply conditions of the seismic station and the real-time requirements of remote control; in the periodic low-power mode, the remote data center issues configuration instructions or control commands within the communication window of the monitoring terminal.

[0043] When the local transmission processing feedback indicates that the transmission request has not been accepted, or if no local transmission processing feedback is received after the preset feedback waiting time, the main control module writes the processing status to the operation log and does not continuously occupy the BeiDou remote communication module for intensive transmission after a failure. For periodic status monitoring messages, the main control module reacquires the station status data at the next permitted transmission time and updates the content to be transmitted with the latest similar status monitoring message; for response messages and alarm messages, the main control module retains the original message and corresponding identifier until the transmission request is accepted or the preset failure condition is met. The above processing coordinates the status query time of the seismic data acquisition unit with the actual transmission permission of BeiDou short messages, reducing the energy consumption caused by invalid activation of the network port communication module and repeated queries of the seismic data acquisition unit during transmission restriction periods, while ensuring that periodic status reports use station status data acquired close to the transmission time.

[0044] The BeiDou remote communication module is also used to receive configuration instructions or control commands from the remote data center. Configuration instructions include setting global parameters, local communication parameters, remote communication parameters, or seismic station parameters. Control commands include requesting status, requesting parameters, or sending control commands to the seismic data acquisition unit. After receiving configuration instructions or control commands, the main control module parses the instruction content and identifies the instruction type. For parameter setting instructions, the main control module updates the local configuration and writes the updated configuration to the internal Flash memory. For status request instructions, the main control module triggers the network communication module to reacquire the network data packets from the seismic data acquisition unit, encapsulates the newly acquired device status and key parameters into a status monitoring message, and sends it back to the remote data center. For acquisition unit control instructions, the main control module generates local control commands conforming to the seismic data acquisition unit's communication protocol based on the instruction type and sends the local control commands to the seismic data acquisition unit through the network communication module. Local control commands are used to start acquisition, stop acquisition, restart the device, or perform other control operations supported by the seismic data acquisition unit. After the seismic data acquisition unit returns the execution response data, the main control module encapsulates the execution response data into a response message suitable for BeiDou short message transmission and sends it to the remote data center through the BeiDou remote communication module.

[0045] In one implementation, the main control module identifies the instruction type and determines the execution scope of configuration instructions or control commands issued by the remote data center. Instructions that can be executed directly include status query, parameter query, start acquisition, stop acquisition, GPS mode switching, seismograph zeroing, and seismograph calibration. Instructions requiring secondary confirmation include formatting the hard drive, clearing memory, and seismograph locking. For instructions requiring secondary confirmation, the main control module first generates a confirmation message and transmits it back to the remote data center via the BeiDou remote communication module; after receiving the confirmation instruction from the remote data center, it generates the corresponding local control instruction and sends it to the seismic data acquisition unit via the network communication module. If the instruction type is not within the allowed execution scope, the main control module generates an error result and transmits it back to the remote data center via the BeiDou remote communication module.

[0046] The remote monitoring terminal for seismic stations can also perform low-power scheduling according to the aforementioned periodic monitoring process. Low-power scheduling includes deep sleep mode, BeiDou status reading mode, BeiDou transmission mode, and Wi-Fi configuration mode. In deep sleep mode, the main control module enters a low-power mode, and the BeiDou remote communication module, Wi-Fi module, and physical layer interface chip enter a low-power state or a power-off state. In BeiDou status reading mode, the main control module starts the receiving and status reading functions of the BeiDou remote communication module and reads the communication status information. In BeiDou transmission mode, the main control module controls the BeiDou remote communication module to perform transmission; when the BeiDou remote communication module has an independently controllable transmission power supply branch, the main control module only enables the transmission power supply branch to operate in BeiDou transmission mode. After completing the reading of local transmission processing feedback and after the configured reception duration, the main control module enters a deep sleep mode or a reception standby mode according to the current task status. In Wi-Fi configuration mode, the main control module turns on the Wi-Fi module and receives local configuration instructions from the human-machine interaction module; after a preset inactivity time, the main control module turns off the Wi-Fi module and enters deep sleep mode or BeiDou status reading mode according to the current task status.

[0047] The information storage module uses a combination of external NOR Flash and internal Flash to save data. The external NOR Flash is used to store operation logs and cached data. The internal Flash is used to store key configuration parameters. These key configuration parameters include the local ID, target ID, automatic transmission cycle, signal-to-noise ratio threshold, and seismic station parameters. Firmware is stored in the main control module's internal Flash. The external NOR Flash is not used for firmware storage. When parameters are updated, the main control module performs an erase and word-by-word programming write operation on the corresponding storage area in the internal Flash. Upon system startup, the main control module reads the key configuration parameters from the internal Flash and loads them into the operating storage space, ensuring that the local ID, target ID, automatic transmission cycle, signal-to-noise ratio threshold, and seismic station parameters remain valid after a power outage and restart.

[0048] In one implementation, the internal Flash memory can be divided into a boot area, a firmware area, a parameter area, and a running flag area. The parameter area can employ a dual-backup structure. Each parameter backup area stores the parameter content, version number, completion flag, and checksum. Upon system startup, the main control module reads both parameter backup areas and determines the valid parameter area based on the completion flag, version number, and checksum. If both parameter backup areas are invalid, the main control module loads the factory default parameters. The running flag area records the last running status, the abnormal reset flag, and the RTC initialization flag. After power-on, the main control module reads the last running status flag and determines whether to initialize the RTC or perform recovery processing based on it. After obtaining valid satellite timing information for the first time, the main control module can update the RTC time, ensuring the running log has accurate time stamps.

[0049] After power-on, the main control module initializes the external NOR Flash, identifies the chip model, and configures the SPI interface, laying the foundation for subsequent write and read operations. The operation log includes parameter modification records, BeiDou local transmission processing feedback, communication anomaly records, system operation status records, and instruction execution result records. The operation log can first be written to a circular buffer in RAM. In its main loop, the main control module writes the operation log from the circular buffer to the external NOR Flash in page-by-page units via SPI DMA. Before writing, the main control module checks the target storage area and erases the target block if necessary to ensure the correctness of the written data. The log area in the external NOR Flash can use a circular overwrite strategy, erasing and writing sector by sector. After the log area is full, the main control module returns to the starting address of the log area to continue writing and erases the overwritten sectors. When a log read command is received, the main control module determines the log range to be read based on the current date, write address, or read address, reads the log data from the external NOR Flash via SPI DMA, and then sends it to the field equipment through the human-machine interface module.

[0050] The information storage module can also be configured with a status monitoring message buffer and a remote command buffer. The status monitoring message buffer is used to cache status monitoring messages to be sent. The remote command buffer is used to cache configuration commands or control commands received by the BeiDou remote communication module. When the BeiDou remote communication module is in a communication intermittent period or in a communication abnormal state, the information storage module retains the status monitoring messages, configuration commands, or control commands to be sent to prevent the loss of status monitoring messages or remote commands due to the temporary unavailability of BeiDou short message communication. After the main control module restores communication conditions, it reads the status monitoring messages, configuration commands, or control commands from the information storage module and continues processing.

[0051] The human-machine interface module connects to the Wi-Fi module via a UART interface. The Wi-Fi module generates a local wireless network after the seismic station's remote monitoring terminal is activated. On-site personnel can use mobile phones, tablets, or computers to access the local wireless network and perform parameter modifications, status queries, log reading, firmware upgrades, and emergency short message communication. The local wireless network name can be formed by combining the device type identifier and the device's unique identifier, allowing on-site personnel to distinguish between different monitoring terminals. On-site personnel can connect to the seismic station's remote monitoring terminal using mobile or computer configuration software compatible with the monitoring terminal's communication protocol. The specific name, operating platform, and interface of the configuration software are determined based on the actual supporting software and are not intended to limit the implementation method of the human-machine interface module.

[0052] The human-machine interface module is used to configure local and remote communication parameters. After connecting to the terminal, field personnel can read the Host IP Address, DAS IP Address, and Server SIM ID through the parameter acquisition operation. The Host IP Address represents the local IP address of the seismic station's remote monitoring terminal. The DAS IP Address represents the local IP address of the connected seismic data acquisition unit. The Server SIM ID represents the SIM card number of the remote data center server. The default subnet mask for the above addresses can be 255.255.255.0. After modifying the parameters, field personnel can save the changes through the parameter setting operation. The saved parameters can be written to the internal Flash memory and remain effective after a system restart.

[0053] The human-computer interaction module can also be used to view device information. Device information includes host information and firmware information. Host information includes the built-in BeiDou user identifier, BeiDou short message service type, and hardware serial number. The BeiDou short message service type can indicate the currently used BeiDou short message service, such as BeiDou-2 or BeiDou-3. Firmware information includes the main control firmware version number; if the radio transmitting equipment used has type approval information, the device information may also include the corresponding type approval code. The aforementioned identifier, serial number, version number, and type approval code are all read from the actual device's configuration area or identification information and are not preset with fixed values ​​in this embodiment.

[0054] The human-machine interface module can also be used for firmware upgrades. On-site personnel can select a .bin format firmware file in the local configuration software and initiate the firmware upgrade process. During the firmware upgrade, the remote monitoring terminal of the seismic station must maintain a stable power supply and ensure that the Wi-Fi or serial port connection remains open. Once the firmware upgrade progress reaches 100%, the local configuration software will display a success message. After a successful upgrade, the remote monitoring terminal of the seismic station can automatically restart to apply the new firmware.

[0055] The human-computer interaction module can also be used for local communication with the seismic data acquisition unit. Once the remote monitoring terminal of the seismic station is connected to the seismic data acquisition unit via the network communication module, on-site personnel can input status query commands or control commands as specified in the seismic data acquisition unit's communication protocol in the command and control area. These commands are then sent to the seismic data acquisition unit by the main control module via the network communication module. The response information returned by the seismic data acquisition unit can be displayed on the console interface of the local configuration software. The specific command codes, data fields, and verification methods are determined according to the communication protocol of the connected seismic data acquisition unit. Through local command control, on-site personnel can verify the local communication status between the seismic data acquisition unit and the remote monitoring terminal of the seismic station without going through a remote data center.

[0056] The human-machine interface module can also be used for independent BeiDou short message emergency communication. After entering the BeiDou short message communication interface, on-site personnel can observe the BeiDou signal status indicators. A red circle indicates that the BeiDou signal is not locked or the signal is abnormal. A green circle indicates that the BeiDou signal is normal and the equipment is ready. When the signal status is green and the sending countdown reaches zero, on-site personnel can enter the other party's BeiDou SIM card number and the short message content, and send the short message through the BeiDou remote communication module. In the computer configuration software, the short message management interface can be accessed through the main program menu bar, and the other party's BeiDou SIM card number and communication content can be entered before sending the short message. When the status indicator on the short message interface is green and the countdown shows "allow to send," the sending operation is completed.

[0057] The instruction processing of the human-machine interface module can employ a combination of UART receive interrupts and main loop parsing. The UART receive interrupt writes the received instruction characters into a circular buffer. Upon detecting a complete instruction line, an instruction processing flag is set. The main control module parses the instructions in the main loop, distinguishing between system maintenance instructions and simulated BeiDou instructions based on instruction type. System maintenance instructions include erasing Flash, reading logs, and setting signal-to-noise ratio thresholds. Simulated BeiDou instructions include setting global parameters, querying global parameters, requesting status, and sending control commands. For simulated BeiDou instructions, the main control module uses the same processing logic as the BeiDou remote communication module for receiving remote instructions, enabling local modification or querying of seismic station parameters and returning the processing results to the field equipment via the human-machine interface module. For dedicated configuration instructions, the main control module parses the parameters and updates the corresponding fields in the internal Flash. For log reading instructions, the main control module reads log data from external NOR Flash through the information storage module and sends it to the field equipment via the UART interface using DMA. After all instructions are executed, the main control module returns the execution result via the UART interface, including success messages, error messages, or data content. Error messages include at least one of the following: invalid parameters, no response from the data collector, BeiDou transmission failure, module busy, insufficient signal, and timeout.

[0058] like Figure 3 As shown, the remote monitoring terminal for seismic stations can adopt an integrated mushroom-shaped structure, including a head shell and a rod-shaped support body. Figure 3 The dimensional relationships are shown. As an example, the outer diameter of the head can be 145 mm, the head height can be 85 mm, the overall height can be 435 mm, and the outer diameter of the lower part of the rod can be 46 mm. These dimensions are used to illustrate a specific structural form and do not constitute a limitation on the invention.

[0059] In one implementation, the remote monitoring terminal for the seismic station has an internal circuit board integrating a main control module, a BeiDou remote communication module, a network communication module, an information storage module, a human-machine interaction module, and a power management circuit. The casing can adopt a protective structure suitable for outdoor environments to meet the requirements of long-term unattended operation. As an example, the overall operating voltage of the remote monitoring terminal for the seismic station can be 12V DC, with an allowable operating voltage range of 9V to 15V; the operating current under normal monitoring conditions can be no greater than 0.1A@12V, and the peak current during BeiDou transmission can be no greater than 1.5A@12V; the typical static power consumption can be no greater than 1.2W, and the sleep power consumption can be no greater than 0.5W; the operating temperature can be -40℃ to 60℃, and the storage temperature can be -40℃ to 60℃; the casing protection level can be no less than IP65; Wi-Fi communication can operate in the 2.4GHz band and support 802.11 b / g / n.

[0060] like Figure 4 As shown, the interface of the remote monitoring terminal of the seismic station can use a circular multi-core connector. Figure 4 This diagram illustrates the end face structure, locating notch, pin arrangement, and pinout definitions of a circular multi-pin connector. The end face of the circular multi-pin connector features a locating notch to determine the insertion direction when the plug and socket are mated, preventing incorrect rotation and insertion. The connector contains multiple pins, labeled A through P to distinguish their relative positions within the connector's end face. Figure 4 In the diagram, the P-position and F-position pins correspond to the red POW markings, which indicate the positive power supply. Figure 4 The black PGND pin corresponds to the power ground. The black PGND is used in conjunction with the red POW to form the DC power supply circuit for the remote monitoring terminal of the seismic station. Figure 4 In the diagram, the E bit corresponds to interface TX+, the K bit corresponds to interface TX-, and interfaces TX+ and TX- together form the transmit differential signal line; the C bit corresponds to interface RX+, the I bit corresponds to interface RX-, and interfaces RX+ and RX- together form the receive differential signal line. These transmit and receive differential signal lines are used to transmit local communication data between the remote monitoring terminal of the seismic station and the seismic data acquisition unit, enabling the network communication module to receive network data packets from the seismic data acquisition unit and to send local control commands to it. Figure 4 The pins A, B, D, G, H, J, L, M, N, and O, which are not explicitly labeled with their functions, can be used as reserved pins, auxiliary connection pins, or grounding extension pins. The specific pin functions can be configured according to the wiring sequence of the matching cable and the interface requirements of the seismic data acquisition device. Through these pin definitions, the circular multi-core connector can integrate power supply and local communication connections within the same interface, reducing the number of external connectors required for field installations and allowing power and communication cables to be connected using fixed pin positions.

[0061] In one implementation, the remote monitoring terminal for a seismic station can simultaneously provide power and communication lines via a single integrated cable. This cable can connect to the seismic data acquisition unit, power supply, and configuration equipment. The connector tail can be sealed with adhesive heat shrink tubing, and the housing seams can be tightened with sealing rings and screws to improve waterproof and dustproof reliability in outdoor environments. During use, one end of the cable can be connected to the remote monitoring terminal via a multi-core plug. The red and black power cords connect to a 12V DC power supply, the communication plug connects to the seismic data acquisition unit, and the USB cable connects to the configuration computer. The red power cord connects to the positive terminal, and the black power cord connects to the negative terminal. If the remote monitoring terminal is only used as a BeiDou short message emergency communication terminal, it does not need to be connected to the seismic data acquisition unit.

[0062] like Figure 5 As shown, this embodiment also provides a remote monitoring method for seismic stations based on BeiDou short message service. This method can be executed by the aforementioned remote monitoring terminal for seismic stations.

[0063] Step 100: Based on the local and remote communication parameters configured in the human-computer interaction module, establish a local communication link with the seismic data acquisition unit and a BeiDou short message communication link with the remote data center. Local communication parameters include Host IP Address, DAS IP Address, and default subnet mask. Remote communication parameters include Server SIM ID, Local ID, Target ID, automatic transmission period, and signal-to-noise ratio threshold. On-site personnel can read existing parameters using mobile or computer configuration software, modify them, and then write them to the seismic station's remote monitoring terminal.

[0064] Step 200: Receive network data packets from the seismic data acquisition unit via the network port communication module. Parse the network data packets to extract device status and key parameters, forming station status data. Specifically, the network port communication module connects to the seismic data acquisition unit via a standard Ethernet interface. The network physical layer signal is processed by the network transformer and physical layer interface chip before being transmitted to the main control module. The main control module parses the network data packets according to the seismic data acquisition unit's communication protocol, identifies the status and parameter fields in the network data packets, extracts the device status from the status fields, extracts key parameters from the parameter fields, and organizes the device status and key parameters into station status data according to data category.

[0065] Step 300: Encapsulate the station status data into status monitoring messages suitable for BeiDou short message transmission, and cache the status monitoring messages in the information storage module. Specifically, the main control module performs field filtering and format conversion on the station status data according to the transmission capacity of BeiDou short messages, and generates #S1 Class I status messages, #S2 Class II status messages, #P acquisition parameter messages, or #G device parameter messages. After the status monitoring messages are generated, they are written to the information storage module. When the BeiDou remote communication module is in a communication intermittent period or in a communication abnormal state, the information storage module continues to store the status monitoring messages to be sent.

[0066] Step 400: The BeiDou remote communication module sends status monitoring messages to the remote data center and receives configuration instructions or control commands from the remote data center. Specifically, after the BeiDou remote communication module powers on and completes initialization, the main control module reads the communication status information output by the BeiDou remote communication module. Once the transmission conditions are met, the main control module constructs a BeiDou short message transmission command containing the target ID, communication frequency, message content, and verification information, and sends it to the BeiDou remote communication module via the UART interface. The BeiDou remote communication module initiates short message transmission according to the BeiDou short message transmission command and returns local transmission processing feedback to the main control module. The main control module records the current processing status and determines the subsequent transmission time based on the transmission request processing status, transmission suppression status, or frequency waiting time; when a communication window is configured, the BeiDou remote communication module receives configuration instructions or control commands issued by the remote data center within a preset reception duration.

[0067] Step 500: Parse the configuration instructions or control commands, generate local control commands adapted to the seismic data acquisition device, and send the local control commands to the seismic data acquisition device via the network communication module. Specifically, the main control module identifies the instruction type of the configuration instructions or control commands. For parameter setting instructions, the main control module updates the corresponding parameters in the internal Flash memory. For status request instructions, the main control module re-acquires the device status and key parameters of the seismic data acquisition device, encapsulates them, and sends them back. For acquisition device control instructions, the main control module converts the configuration instructions or control commands into local control commands conforming to the seismic data acquisition device's communication protocol and sends them to the seismic data acquisition device via the network communication module.

[0068] Step 600: The seismic data acquisition unit receives the execution response data returned by the seismic data acquisition unit in response to local control commands via the network port communication module. This execution response data is encapsulated into a response message suitable for BeiDou short message transmission and then sent to the remote data center via the BeiDou remote communication module. Specifically, the seismic data acquisition unit returns execution response data after processing the local control commands. After receiving the execution response data, the main control module performs field filtering and format conversion on the execution response data according to the transmission capacity of BeiDou short messages and encapsulates it into a response message. After the response message is sent to the remote data center via the BeiDou remote communication module, the remote data center can obtain the execution results of the remote commands.

[0069] In periodic monitoring mode, steps 200 to 400 can be executed in the order of prioritizing transmission permission. After the RTC wakes up the main control module, the main control module first reads the communication status information output by the Beidou remote communication module. If transmission is not currently permitted, the main control module updates the next wake-up time based on the frequency waiting time or short message service frequency, and returns to a low-power state. If transmission is currently permitted and the communication conditions meet the preset communication conditions, the main control module executes steps 200 and 300, obtains the current device status and key parameters of the seismic data acquisition device, and forms a status monitoring message, then executes step 400. After completing the reading of the local transmission processing feedback, the main control module, based on either a power consumption priority mode or a remote command real-time priority mode, puts the Beidou remote communication module into a low-power state or a receiving standby state.

[0070] Through the aforementioned terminal structure and methodology, the remote monitoring terminal for seismic stations can transmit the device status and key parameters of the seismic data acquisition unit to a remote data center via BeiDou short message service in field environments where there is no mobile communication network coverage or ground communication conditions are limited. It also converts configuration instructions or control commands issued by the remote data center into local control instructions executable by the seismic data acquisition unit. After the execution response data returned by the seismic data acquisition unit is transmitted back via response messages, the remote data center can obtain the execution results of the remote commands.

[0071] In this embodiment, through the aforementioned remote monitoring terminal and method for seismic stations, the network communication module can establish a local communication link with the seismic data acquisition device. The main control module can perform protocol parsing on the network data packets from the seismic data acquisition device and extract the device status and key parameters. This process organizes the raw network data from the seismic data acquisition device into station status data, avoiding direct reception by the remote data center of raw data that is difficult to carry via BeiDou short messages. The main control module further encapsulates the station status data into status monitoring messages suitable for BeiDou short message transmission and sends them to the remote data center via the BeiDou remote communication module, enabling seismic stations in environments with limited ground communication conditions to complete status reporting.

[0072] The information storage module caches pending status monitoring messages, configuration instructions, and control commands. During communication interruptions or abnormal states in BeiDou short message communication, it retains unprocessed data, reducing the impact of communication unavailability on status reporting and remote command processing. The main control module, combining RTC wake-up, transmission permission judgment, and frequency waiting time, controls the timing of status queries for the seismic data acquisition unit and the transmission time of BeiDou short messages. When transmission is not permitted, network port status queries are not initiated; when transmission is permitted, the latest station status data close to the transmission time is obtained. This reduces invalid communication and repeated status queries during transmission restrictions and eliminates the need for the BeiDou remote communication module to be continuously in transmission mode, thus reducing power consumption of the terminal under unattended conditions in the field.

[0073] After the remote data center sends configuration instructions or control commands via BeiDou short message service, the main control module can identify the command type and convert it into local control commands conforming to the seismic data acquisition device's communication protocol. These commands are then sent to the seismic data acquisition device via the network communication module. After the seismic data acquisition device returns execution response data, the main control module encapsulates this data into a response message and transmits it back to the remote data center via the BeiDou remote communication module. This allows the remote data center to obtain the execution results of the remote commands, reducing the problem of only being able to report the status unilaterally without being able to confirm the control results.

[0074] The human-machine interface module (HMI) provides configuration for local and remote communication parameters and works with the main control module to perform status queries, log readings, firmware upgrades, and emergency short message communication. During on-site maintenance, staff can use the HMI to read terminal parameters, view device information, and verify the local communication status with the seismic data acquisition unit. In cases where ground communication is unavailable, emergency on-site communication can also be conducted using BeiDou short message service. Thus, the seismic station remote monitoring terminal can complete status acquisition, message encapsulation, BeiDou transmission, remote command conversion, and execution response feedback in a field station environment.

[0075] Specific examples have been used to illustrate the principles and implementation methods of this invention. The descriptions of the above embodiments are only for the purpose of helping to understand the method and core ideas of this invention. Furthermore, those skilled in the art will recognize that, based on the ideas of this invention, there will be changes in the specific implementation methods and application scope. Therefore, the content of this specification should not be construed as a limitation of this invention.

Claims

1. A remote monitoring terminal for seismic stations based on BeiDou short message service, characterized in that, It includes a main control module, a network communication module, an information storage module, a Beidou remote communication module, and a human-computer interaction module; The network port communication module is connected to the main control module. The network port communication module is used to establish a local communication link with the seismic data acquisition device and to receive network data packets from the seismic data acquisition device. The main control module is used to perform protocol parsing on the network data packets, extract device status and key parameters, form station status data, and encapsulate the station status data into a status monitoring message suitable for BeiDou short message transmission. The information storage module is connected to the main control module. The information storage module is used to cache the status monitoring messages to be sent, as well as the configuration instructions or control commands received by the Beidou remote communication module. The Beidou remote communication module is connected to the main control module. The Beidou remote communication module is used to send the status monitoring message to the remote data center and receive the configuration instruction or the control command from the remote data center. The main control module is also used to parse the configuration instructions or the control commands, generate local control instructions adapted to the seismic data acquisition device, and send the local control instructions to the seismic data acquisition device through the network communication module. The main control module is also used to receive the execution response data returned by the seismic data acquisition device in response to the local control command through the network communication module, and to encapsulate the execution response data into a response message suitable for BeiDou short message transmission; The Beidou remote communication module is also used to send the response message to the remote data center; The human-computer interaction module is connected to the main control module, and the human-computer interaction module is used to configure local communication parameters and remote communication parameters.

2. The remote monitoring terminal for seismic stations based on BeiDou short message service as described in claim 1, characterized in that, The main control module is connected to the network communication module through a data interface for local network communication, to the information storage module through a data interface for reading and writing cached data, to the BeiDou remote communication module through a data interface for BeiDou short message interaction, and to the human-machine interaction module through a data interface for local parameter configuration.

3. The remote monitoring terminal for seismic stations based on BeiDou short message service as described in claim 1, characterized in that, The network communication module includes a standard Ethernet interface, a physical layer interface chip, and a network transformer. The standard Ethernet interface is used to connect to the seismic data acquisition device. The network transformer is used to isolate the network physical layer signals from the seismic data acquisition device. The physical layer interface chip is used to condition the network physical layer signals isolated by the network transformer and transmit the conditioned data to the main control module through a data interface for local network communication.

4. The remote monitoring terminal for seismic stations based on BeiDou short message service as described in claim 1, characterized in that, The main control module is configured to parse the network data packets according to the communication protocol of the seismic data acquisition device, extract the device status and key parameters that characterize the operating status of the seismic data acquisition device from the network data packets, and organize the device status and key parameters into station status data according to data categories; the device status includes at least one of voltage, temperature, storage capacity and recording status, and the key parameters include observation parameters.

5. The remote monitoring terminal for seismic stations based on BeiDou short message service as described in claim 1, characterized in that, The main control module is configured to perform field filtering and format conversion on the device status and key parameters in the station status data according to the transmission capacity of Beidou short messages, and organize the station status data after field filtering and format conversion into the status monitoring message.

6. The remote monitoring terminal for seismic stations based on BeiDou short message service as described in claim 1, characterized in that, The information storage module is equipped with a status monitoring message cache area and a remote command cache area; the status monitoring message cache area is used to cache the status monitoring messages to be sent, and the remote command cache area is used to cache the configuration commands or control commands received by the Beidou remote communication module. When the BeiDou remote communication module is in a communication intermittent period or in a communication abnormal state, the information storage module retains the status monitoring message, the configuration instruction, or the control command to be sent.

7. The remote monitoring terminal for seismic stations based on BeiDou short message service according to claim 1, characterized in that, The main control module is configured to identify the instruction type of the configuration instruction or the control command, convert the configuration instruction or the control command into a local control instruction that conforms to the communication protocol of the seismic data acquisition device according to the instruction type, and send the local control instruction to the seismic data acquisition device through the network port communication module.

8. A remote monitoring method for seismic stations based on BeiDou short message service, characterized in that, Applied to a monitoring terminal, the monitoring terminal includes a main control module, a network port communication module, an information storage module, a Beidou remote communication module, and a human-computer interaction module, the method includes: Based on the local and remote communication parameters configured in the human-computer interaction module, a local communication link is established with the seismic data acquisition device, and a BeiDou short message communication link is established with the remote data center. The network communication module receives network data packets from the seismic data acquisition device, performs protocol parsing on the network data packets, extracts device status and key parameters, and forms station status data. The station status data is encapsulated into a status monitoring message suitable for BeiDou short message transmission, and the status monitoring message is cached in the information storage module; The Beidou remote communication module sends the status monitoring message to the remote data center and receives configuration instructions or control commands from the remote data center. The configuration instructions or control commands are parsed to generate local control instructions adapted to the seismic data acquisition device, and the local control instructions are sent to the seismic data acquisition device through the network port communication module. The network communication module receives the execution response data returned by the seismic data acquisition unit in response to the local control command, encapsulates the execution response data into a response message suitable for BeiDou short message transmission, and sends the response message to the remote data center through the BeiDou remote communication module.

9. The remote monitoring method for seismic stations based on BeiDou short messages according to claim 8, characterized in that, The steps for generating the station status data include: The network data packets are parsed according to the communication protocol of the earthquake data acquisition device to identify the status field and parameter field in the network data packets; Extract the device status from the status field and extract the key parameters from the parameter field; The device status and the key parameters are organized into station status data according to data categories; The device status includes at least one of voltage, temperature, storage capacity, and recording status, and the key parameters include observation parameters.

10. The remote monitoring method for seismic stations based on BeiDou short messages according to claim 8, characterized in that, The steps of generating the local control command and encapsulating the response message include: Identify the instruction type of the configuration instruction or the control command; According to the instruction type, the configuration instruction or the control command is converted into a local control instruction that conforms to the communication protocol of the seismic data acquisition device; The local control command is sent to the seismic data acquisition device through the network port communication module, and the execution response data returned by the seismic data acquisition device in response to the local control command is received. The execution response data is encapsulated into a response message suitable for BeiDou short message transmission, and the response message is sent to the remote data center through the BeiDou remote communication module.

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