A wireless control system and method for geophysical prospecting equipment

Abstract

The application provides a wireless control system and method for geophysical exploration equipment, and belongs to the technical field of geophysical exploration. It solves the problems of poor portability, limited communication distance and inability to simultaneously control a large number of devices of the existing control system. The wireless control system and method comprise an intelligent mobile terminal device, a wireless communication module, an Internet of Things cloud platform and an embedded control unit, the intelligent mobile terminal device comprises a short-range control module and a remote control module, and the wireless control module comprises a Bluetooth module, a WiFi module and an NB-IoT module. The wireless control system solves the problems of limited communication distance and inability to simultaneously control a large number of devices of the control system while ensuring the portability of the control system.

Description

TECHNICAL FIELD

[0001] The present application belongs to the technical field of geophysical exploration, in particular to a wireless control system and method for geophysical exploration equipment. BACKGROUND

[0002] Geophysical exploration is an exploration technology and method for detecting different geological bodies and abnormal bodies through the difference in physical properties of different geological bodies. Geophysical exploration equipment is the core of geophysical exploration. The geophysical exploration equipment is a professional instrument formed by the integration of multiple disciplines such as geophysical exploration theory, sensing technology, data acquisition technology, and computer technology. Conventional geophysical exploration equipment can be roughly divided into a control system and an acquisition system.

[0003] The control system is an important component in geophysical equipment, which directly affects the construction efficiency of field exploration work. Most of the existing domestic and foreign geophysical equipment has the following defects in use: first, the control system of the existing geophysical equipment is mostly based on PC and Windows operating system. The PC is large in size and not easy to carry in field exploration work. Moreover, the continuous endurance of the battery of the PC is limited, especially in cold regions, the endurance is further discounted. Second, the communication between the PC and the geophysical equipment is carried out in a wired manner. The wired communication mode leads to difficulties in wiring construction under complex terrain conditions, which greatly reduces the construction efficiency in the field. Some acquisition control systems of geophysical equipment also use WiFi, ZigBee, and Bluetooth wireless communication technologies. Although this method solves the problems of complex wiring and heavy equipment of geophysical equipment to some extent, the communication distance of the above communication technologies is limited, and the communication quality and distance are also easily affected by buildings when facing urban geophysical exploration, resulting in poor communication quality. Moreover, the number of PC access to WiFi, Bluetooth, and other devices is limited, and it is difficult to meet the design requirements of large-scale and distributed acquisition modules. SUMMARY

[0004] The present application aims to solve the above problems of the existing technology. The present application proposes a wireless control system and method for geophysical exploration equipment. The technical problem to be solved by the present application is how to ensure the portability of the control system while solving the problem of limited communication distance of the control system and the inability to control a large number of devices simultaneously.

[0005] The object of the present application can be achieved by the following technical solutions:

[0006] A wireless control system for geophysical exploration equipment, characterized in that it comprises a smart mobile terminal device, a wireless communication module, an Internet of Things cloud platform and an embedded control unit, the smart mobile terminal device comprises a short-range control module and a remote control module, the wireless control module comprises a Bluetooth module, a WiFi module and an NB-IoT module;

[0007] In the short-range control scenario, a communication link is established between the short-range control module and the embedded control unit through the Bluetooth module and the WiFi module.

[0008] In the remote control scenario, the remote control module establishes a communication link with the Internet of Things cloud platform through a 4G or 5G network, and the embedded control unit establishes a communication link with the Internet of Things cloud platform through the NB-IoT module, and the geophysical exploration equipment on Earth further comprises an acquisition module, which is electrically connected to the embedded control unit.

[0009] Compared with the prior art, the wireless control system uses a smart mobile terminal device to replace a traditional PC as a control terminal, and the smart mobile terminal device has the advantages of small size, portability, low power consumption, long battery life and good human-computer interaction; secondly, the entire control system uses wireless control in both short-range control scenarios and remote control scenarios, without the need for communication cables, which reduces the construction time of point layout and wiring in field work, and the device has fewer external interfaces, better sealing, improved dustproof, moistureproof and shockproof capabilities, avoids the influence of complex weather on device operation, and improves the safety of instrument operation; in addition, in the short-range control scenario, the Bluetooth module and the WiFi module are used to achieve wireless communication, and in the remote control scenario, the NB-IoT module is used for wireless communication, which takes advantage of the wide coverage of NB-IoT technology to compensate for the short communication distance and the communication quality of WiFi and Bluetooth, which is easily affected by buildings, to achieve communication in remote control scenarios; finally, in the remote control scenario, the wireless control system is based on the Internet of Things architecture and establishes a link with the Internet of Things cloud platform through the NB-IoT module, and based on the powerful management function of the third-party Internet of Things cloud platform and the advantages of NB-IoT technology, a large number of acquisition modules can be wirelessly and remotely controlled.

[0010] In the above-mentioned wireless control system for geophysical exploration equipment, in the short-range control scenario, the short-range control module sends control commands to the embedded control unit through the Bluetooth module, and the embedded control unit transmits raw data to the smart mobile terminal device through the WiFi module.

[0011] In the wireless control system for geophysical exploration equipment, in the remote control scenario, the NB-IoT module is used for transmitting control commands by the embedded control unit, and the embedded control unit is used for transmitting raw data to the Internet of Things cloud platform through the NB-IoT module.

[0012] In the wireless control system for geophysical exploration equipment, the smart mobile terminal device further comprises a parameter setting module, the parameter setting module is used for inputting a parameter setting command, and the parameter setting command is sent to the embedded control unit through the short-range control module or the remote control module.

[0013] In the wireless control system for geophysical exploration equipment, the smart mobile terminal device further comprises a data visualization module, the data visualization module is used for storing, processing and real-time displaying raw data and state feedback information sent by the embedded control unit.

[0014] In the wireless control system for geophysical exploration equipment, the embedded control unit comprises a communication network access module, a command decoding module, a data packaging module, a data sending module and a data operation module.

[0015] When the embedded control unit is powered on, the communication network access module starts to configure the wireless communication module to enter the working state;

[0016] The command decoding module receives the control command issued by the smart mobile terminal device, decodes the control command into binary format and issues the control command to the acquisition module;

[0017] In the short-range control scenario, the data packaging module packages the acquired raw data into a fixed-size TCP data packet, and in the remote control scenario, the data packaging module encapsulates the data to be reported to the Internet of Things cloud platform into a fixed-format hexadecimal code stream;

[0018] In the short-range control scenario, the data sending module sends the TCP data packet to the smart mobile terminal device through the WiFi module, and in the remote control scenario, the data sending module sends the hexadecimal code stream to the Internet of Things cloud platform through the NB-IoT module;

[0019] In the remote control scenario, the data operation module analyzes and processes the raw data of the acquisition module and obtains the operation result.

[0020] In the wireless control system for the geophysical exploration equipment, the Internet of Things cloud platform comprises a device access service module, a data analysis service module and an elastic cloud server, the device access service module is used for adding and managing the accessed NB-IoT devices, the data analysis service module is used for analyzing the historical data reported by the NB-IoT devices, and the elastic cloud server is used for personalized processing of batch data.

[0021] A control method of a wireless control system for geophysical exploration equipment,

[0022] Step 1: Start the intelligent mobile terminal device and the embedded control unit, and establish a communication link between the intelligent mobile terminal device and the embedded control unit through the wireless control module;

[0023] Step 2: Select a short-range control scene or a remote control scene on the intelligent mobile terminal device, set the self-checking, configuration and acquisition parameters through the parameter setting module, send the parameters to the embedded control unit through the Bluetooth module by the short-range control module or send the parameters to the Internet of Things cloud platform through the 4G or 5G network by the remote control module, and send the parameters to the NB-IoT module through the core network or the base station by the Internet of Things cloud platform;

[0024] Step 3: The embedded control unit receives the above parameters and parses the parameters into binary format commands, and then sends the parameters to the acquisition module through the USART and SPI interfaces;

[0025] Step 4: The embedded control unit stores the raw data sent by the acquisition module, in the short-range control scene, the embedded control unit packs the raw data into a TCP data packet and sends it to the intelligent mobile terminal device through the WiFi module, and in the remote control scene, the embedded control unit performs operation on the raw data, encapsulates the calculation result according to the CoAP protocol data format, and then sends the data to the Internet of Things cloud platform through the NB-IoT module;

[0026] Step 5: In the short-range control scene, the intelligent mobile terminal device receives the raw data sent by the embedded control unit and performs operation processing on the raw data, and in the remote control scene, the intelligent mobile terminal device pulls the data of the Internet of Things cloud platform through the API and performs storage and display processing on the data.

[0027] In the control method of the wireless control system for the geophysical exploration equipment, in step 4, the embedded control unit switches the communication mode according to the signal strength and communication distance of the wireless network, and further changes the data transmission channel.

[0028] In the control method of the wireless control system for the geophysical exploration equipment, in the remote control scene, the web-based Internet of Things cloud platform can be logged in to directly issue a control command to the embedded control unit, and the web-based Internet of Things cloud platform can analyze the reported data.

[0029] Compared with the prior art, the wireless control system and method for the geophysical exploration equipment have the following advantages: compared with the prior art, the wireless control system uses a smart mobile terminal device to replace a traditional PC as a control terminal, and the smart mobile terminal device has the advantages of small size, convenient carrying, low power consumption, long battery life and good man-machine interaction; secondly, the entire control system uses a wireless control mode in the near-range control scene and the remote control scene, and does not need a communication cable, thereby reducing the construction time of point laying and wiring in the field work, and the device has few external interfaces, good sealing performance, improved dustproof, moistureproof and shockproof capabilities, avoided influence of complex weather on the device work, and improved safety of instrument operation; in addition, the Bluetooth module and the WiFi module are used to realize wireless communication in the near-range control scene, and the NB-IoT module is used to realize wireless communication in the remote control scene, the NB-IoT technology is used to compensate for the short communication distance and the communication quality being easily affected by buildings, and communication in the near-range and remote control scenes is realized; finally, in the remote control scene, the wireless control system is based on the Internet of Things architecture, links are established between the NB-IoT module and the Internet of Things cloud platform, and based on the powerful management function of the third-party Internet of Things cloud platform and the advantages of the NB-IoT technology, wireless remote control can be realized on a large number of acquisition modules. BRIEF DESCRIPTION OF DRAWINGS

[0030] Figure 1 is a structural schematic diagram of the wireless control system of the present application.

[0031] Figure 2 is a working flowchart of the wireless control method of the present application.

[0032] Figure 3 is a working flowchart of the smart mobile terminal device of the present application.

[0033] Figure 4 is a working flowchart of the embedded control unit of the present application.

[0034] Figure 5 is a hardware structural schematic diagram of the wireless control system of the present application. DETAILED DESCRIPTION

[0035] The following is a specific embodiment of the present application and further describes the technical solutions of the present application in combination with the drawings, but the present application is not limited to these embodiments.

[0036] As Figure 1 , Figure 3 and Figure 4 shown, the wireless control system for the geophysical exploration equipment includes a smart mobile terminal device, a wireless communication module, an Internet of Things cloud platform, and an embedded control unit, the smart mobile terminal device includes a short-range control module, a remote control module, a parameter setting module, and a data visualization module, the wireless control module includes a Bluetooth module, a WiFi module, and an NB-IoT module, the embedded control unit includes a communication access module, a data packaging module, a data sending module, and a data operation module, and the geophysical exploration equipment further includes an acquisition module, which is electrically connected with the embedded control unit.

[0037] When the embedded control unit is powered on, the communication access module starts to configure the wireless communication module to enter a working state, the parameter setting module is used to input a parameter setting command, the parameter setting command is sent to the embedded control unit through the short-range control module or the remote control module, the command information in the parameter setting module includes starting, stopping, self-checking, and configuration, etc., wherein the configuration command includes parameters such as sampling frequency, amplification multiple, filtering mode, power supply mode, and frequency control word. The data visualization module is used to store, process, and display the original data and state feedback information sent by the embedded control unit in real time, the state feedback information includes command execution state information, working state information, and warning information of the acquisition module, specifically, the data visualization module performs Fourier transform, calculates the resistivity and phase of each frequency point after receiving the data, and dynamically displays in real time.

[0038] In the short-range control scenario, the short-range control module and the embedded control unit establish a communication link through the Bluetooth module and the WiFi module, specifically, the short-range control module is used to send a control command to the embedded control unit through the Bluetooth module, the embedded control unit receives the control command issued by the smart mobile terminal device, decodes the control command into a binary format, and issues it to the acquisition module, the acquisition module returns the collected data to the embedded control unit, the data packaging module packs the collected original data into a fixed-size TCP data packet, the data sending module transmits the TCP data packet to the smart mobile terminal device through the WiFi module, and the data visualization module is used to store, process, and display the TCP data packet and the state feedback information sent by the embedded control unit in real time, the state feedback information includes command execution state information, working state information, and warning information of the acquisition module, specifically, the data visualization module performs Fourier transform, calculates the resistivity and phase of each frequency point after receiving the TCP data packet, and dynamically displays in real time.

[0039] In the remote control scene, the remote control module establishes a communication link with the Internet of Things cloud platform through a 4G or 5G network, and the embedded control unit establishes a communication link with the Internet of Things cloud platform through an NB-IoT module. Specifically, the remote control module sends a control command to the Internet of Things cloud platform through a 4G or 5G network, the Internet of Things cloud platform receives the control command and transmits the control command to the embedded control unit through the NB-IoT module, the embedded control unit receives the control command, decodes the control command into a binary format and issues the control command to the acquisition module, the acquisition module returns the collected data to the embedded control unit, the data operation module analyzes and processes the raw data of the acquisition module and obtains an operation result, the data packaging module packages the operation result to be reported to the Internet of Things cloud platform into a fixed format of a hexadecimal code stream, the data sending module transmits the hexadecimal code stream to the Internet of Things cloud platform through the NB-IoT module, and the data visualization module pulls the data of the Internet of Things cloud platform through an API and stores and displays the data, thereby realizing dynamic real-time display.

[0040] Compared with the prior art, the wireless control system adopts an intelligent mobile terminal device to replace a traditional PC as a control terminal, and the intelligent mobile terminal device has the advantages of small size, convenient carrying, low power consumption, long endurance time and good man-machine interaction; secondly, the entire control system adopts a wireless control mode in the near-range control scene and the remote control scene, and does not need a communication cable. In field work, the construction time of point laying and wiring is reduced, the number of external interfaces of the device is small, the sealing performance is good, the dustproof, moistureproof and shockproof capabilities of the device are improved, the influence of complex weather on the operation of the device is avoided, and the safety of instrument operation is improved; in addition, the Bluetooth module and the WiFi module are adopted to realize wireless communication in the near-range control scene, and the NB-IoT module is adopted to realize wireless communication in the remote control scene, the technical feature of wide coverage of the NB-IoT technology makes up for the disadvantages of short communication distance and communication quality being easily affected by buildings of WiFi and Bluetooth communication, and communication in the near-range control scene and the remote control scene is realized; finally, in the remote control scene, the wireless control system establishes a link with the Internet of Things cloud platform through an NB-IoT module based on an Internet of Things architecture, and based on the powerful management function of the third-party Internet of Things cloud platform and the advantages of large connection of the NB-IoT technology, wireless remote control of a large number of acquisition modules can be realized.

[0041] The Internet of Things cloud platform includes a device access service module, a data analysis service module and an elastic cloud server. The device access service module is used for adding and managing accessed NB-IoT devices, the data analysis service module is used for analyzing historical data reported by the NB-IoT devices, and the elastic cloud server is used for personalized processing of batch data.

[0042] In the embodiment, as shown in Figure 5The intelligent mobile terminal device is a smart phone with Android 10.0 or above, the MCU of the embedded control unit is selected from STM32F429IGT6, the uCOS-III small real-time operating system is carried, the Internet of Things cloud platform is selected from the Huawei cloud Internet of Things platform, the Bluetooth module is selected from the HC-05 module, the WiFi module is selected from the ALK8266 module, the NB-IoT module is selected from the NB101 module, and the FPGA control design is adopted for the collection module. The embedded system unit is selected as the control transfer station, the STM32F429IGT6 master control chip with high cost performance is selected as the MCU, the small real-time operating system is carried, the real-time performance is high and the power consumption is low, meanwhile, the underlying hardware interface is rich, which is convenient for connection with the collection module based on the FPGA or CPLD, the system can rely on the rich functions of the cloud platform to realize the expansion of the system functions, meanwhile, the intelligent mobile terminal device also has rich programmable ability, based on different collection modules, the application layer code can be modified and added, and the secondary development of the whole system is convenient.

[0043] A wireless control method of a wireless control system for geophysical exploration equipment, as shown in Figure 2

[0044] Step 1: start the intelligent mobile terminal device, enter the operating system of the intelligent mobile terminal device and control the APP to power on the embedded control unit, wait for the system initialization to be completed, and the wireless control module enables the intelligent mobile terminal device and the embedded control unit to establish a communication link;

[0045] Step 2: according to the distance of the control, select the short-range control scene or the remote control scene on the intelligent mobile terminal device, set the self-checking, configuration and collection parameters through the parameter setting module, the short-range control module sends the parameters to the embedded control unit through the Bluetooth module or the remote control module sends the parameters to the Internet of Things cloud platform through the 4G or 5G network, and the Internet of Things cloud platform is sent to the NB-IoT module through the core network or the base station;

[0046] Step 3: the embedded control unit receives the above parameters and parses the parameters into binary format commands, and then sends the parameters to the collection module through the USART and SPI interfaces;

[0047] Step 4: the embedded control unit stores the original data sent by the collection module, in the short-range control scene, the embedded control unit packs the original data into a TCP data packet and sends it to the intelligent mobile terminal device through the WiFi module, and in the remote control scene, the embedded control unit performs operation on the original data, encapsulates the calculation result according to the CoAP protocol data format, and then sends the data to the Internet of Things cloud platform through the NB-IoT module;

[0048] ​Step 5: In the short-range control scene, the smart mobile terminal device receives the original data sent by the embedded control unit, and performs operation processing on the original data; in the remote control scene, the smart mobile terminal device pulls the data of the Internet of Things cloud platform through API, and performs storage and display processing on the data;

[0049] In step 4, the embedded control unit switches the communication mode according to the signal strength and communication distance of the wireless network, and further changes the data transmission channel;

[0050] In step 2, in the remote control scene, the embedded control unit can be directly issued with a control command by logging into the web version of the Internet of Things cloud platform, and the web version of the Internet of Things cloud platform can view and analyze the data reported by the NB-IoT module.

[0051] The specific embodiments described herein are merely illustrative of the spirit of the present application. Those skilled in the art of the present application can make various modifications or supplements to the described specific embodiments or replace them with similar ways, without departing from the spirit of the present application or exceeding the scope defined by the appended claims.

Claims

1. A wireless control system for geophysical prospecting equipment, characterized in that, The application relates to a geophysical exploration device, which comprises a smart mobile terminal device, a wireless communication module, an Internet of Things cloud platform and an embedded control unit, the smart mobile terminal device comprises a short-range control module and a remote control module, the wireless communication module comprises a Bluetooth module, a WiFi module and an NB-IoT module, and the embedded control unit is connected with the smart mobile terminal device, the acquisition module and the wireless communication module. In a short-range control scene, a communication link is established between the short-range control module and the embedded control unit through the Bluetooth module and the WiFi module. In a remote control scene, a communication link is established between the remote control module and the Internet of Things cloud platform through a 4G or 5G network, and a communication link is established between the embedded control unit and the Internet of Things cloud platform through the NB-IoT module. In a short-range control scene, the short-range control module is used for sending control commands to the embedded control unit through the Bluetooth module, and the embedded control unit is used for transmitting original data to the smart mobile terminal device through the WiFi module; in a remote control scene, the Internet of Things cloud platform is used for transmitting control commands to the embedded control unit through the NB-IoT module, and the embedded control unit is used for transmitting the operation result of original data to the Internet of Things cloud platform through the NB-IoT module; the smart mobile terminal device further comprises a parameter setting module, the parameter setting module is used for inputting a parameter setting command, and the parameter setting command is sent to the embedded control unit through the short-range control module or the remote control module; the smart mobile terminal device further comprises a data visualization module, the data visualization module is used for storing, processing and real-time displaying original data and state feedback information sent by the embedded control unit; the embedded control unit comprises a communication access module, a command decoding module, a data packaging module, a data sending module and a data operation module. When the embedded control unit is powered on, the communication access module is started to configure the wireless communication module to enter a working state. The command decoding module receives a control command issued by the smart mobile terminal device, decodes the control command into a binary format and issues the control command to the acquisition module. In a short-range control scene, the data packaging module packs original data collected by the acquisition module into a fixed-size TCP data packet, and in a remote control scene, the data packaging module encapsulates data to be reported to the Internet of Things cloud platform into a fixed-format hexadecimal code stream. In a short-range control scene, the data sending module sends the TCP data packet to the smart mobile terminal device through the WiFi module, and in a remote control scene, the data sending module sends the hexadecimal code stream to the Internet of Things cloud platform through the NB-IoT module. In a remote control scene, the data operation module analyzes and processes original data of the acquisition module and obtains an operation result. The Internet of Things cloud platform comprises a device access service module, a data analysis service module and an elastic cloud server, the device access service module is used for adding and managing accessed NB-IoT devices, the data analysis service module is used for analyzing historical data reported by the NB-IoT device, and the elastic cloud server is used for personalized processing of batch data.

2. The control method of the wireless control system of the geophysical prospecting equipment according to claim 1, characterized in that, Step 1: start the intelligent mobile terminal device and the embedded control unit, and establish a communication link between the intelligent mobile terminal device and the embedded control unit through the wireless communication module; Step 2: select the short-range control scene or the remote control scene on the intelligent mobile terminal device, set the self-checking, configuration and acquisition parameters through the parameter setting module, send the parameters to the embedded control unit through the Bluetooth module by the short-range control module or send the parameters to the Internet of Things cloud platform through the 4G or 5G network by the remote control module, and send the parameters to the NB-IoT module through the core network or the base station by the Internet of Things cloud platform; Step 3: the embedded control unit receives the above parameters and parses them into binary format commands, and then sends them to the acquisition module through the USART and SPI interfaces; Step 4: the embedded control unit stores the raw data sent by the acquisition module, packs the raw data into TCP data packets in the short-range control scene, and sends them to the intelligent mobile terminal device through the WiFi module, and in the remote control scene, the embedded control unit performs operations on the raw data, encapsulates the calculation results according to the CoAP protocol data format, and sends the data to the Internet of Things cloud platform through the NB-IoT module; Step 5: in the short-range control scene, the intelligent mobile terminal device receives the raw data sent by the embedded control unit, performs operation and display processing on the raw data, and in the remote control scene, the intelligent mobile terminal device pulls the data of the Internet of Things cloud platform through the API, and performs storage and display processing on the data.

3. The control method of a wireless control system for a geophysical prospecting apparatus according to claim 2, wherein In step 4, the embedded control unit switches the communication mode according to the signal strength and communication distance of the wireless network, and then changes the data transmission channel.

4. The control method of a wireless control system for a geophysical prospecting apparatus according to claim 2, wherein In step 2, in the remote control scene, the web version of the Internet of Things cloud platform can be logged in to directly issue control commands to the embedded control unit, and the web version of the Internet of Things cloud platform can analyze the data reported by the NB-IoT module.

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