CN110376641B - 5G and 4G combined communication method and system of wireless seismograph - Google Patents
5G and 4G combined communication method and system of wireless seismograph Download PDFInfo
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- 238000004891 communication Methods 0.000 title claims abstract description 57
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- G01V—GEOPHYSICS; GRAVITATIONAL MEASUREMENTS; DETECTING MASSES OR OBJECTS; TAGS
- G01V1/00—Seismology; Seismic or acoustic prospecting or detecting
- G01V1/16—Receiving elements for seismic signals; Arrangements or adaptations of receiving elements
- G01V1/18—Receiving elements, e.g. seismometer, geophone or torque detectors, for localised single point measurements
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01V—GEOPHYSICS; GRAVITATIONAL MEASUREMENTS; DETECTING MASSES OR OBJECTS; TAGS
- G01V1/00—Seismology; Seismic or acoustic prospecting or detecting
- G01V1/22—Transmitting seismic signals to recording or processing apparatus
- G01V1/223—Radioseismic systems
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- G—PHYSICS
- G08—SIGNALLING
- G08C—TRANSMISSION SYSTEMS FOR MEASURED VALUES, CONTROL OR SIMILAR SIGNALS
- G08C17/00—Arrangements for transmitting signals characterised by the use of a wireless electrical link
- G08C17/02—Arrangements for transmitting signals characterised by the use of a wireless electrical link using a radio link
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Abstract
The invention relates to the technical field of seismic exploration and wireless communication, in particular to a 5G and 4G combined communication method and system of a wireless seismograph, wherein the method comprises the following steps: the method comprises the steps that a 5G communication module is controlled through an SPI interface of a main control unit of each wireless seismograph, an instruction is sent, a 5G function is closed in a field working stage, 4G communication is started, the wireless seismograph communicates with a host computer through a 4G base station and the Internet, parameter setting is conducted on the wireless seismograph, and state monitoring information communication is conducted; and in the data recovery stage, the wireless seismograph communicates with the host computer through the 5G micro base station and the Internet to realize rapid and large-scale recovery of stored data. The method has downward compatibility to the existing wireless communication technologies such as 4G and the like by utilizing the 5G technology, solves the defects in the background technology, and has the characteristics of fast data recovery, large capacity, good quality, flexible use and strong environment adaptability.
Description
Technical Field
The invention relates to the technical field of seismic exploration and wireless communication, in particular to a 5G and 4G combined communication method and system of a wireless seismograph.
Background
With the continuous development of economic construction in China, large-scale infrastructure construction, such as railways, subways and the like, and large-scale energy exploration, all need to carry out exploration analysis on geological conditions. The huge scale means an increase in the number of seismometers and an increase in the amount of data acquired.
The existing wired seismometers are gradually unsuitable for the development trend of large-scale seismic exploration because of the problem of difficult on-site wiring; the wireless seismograph eliminates a large line, improves the environmental adaptability, and is more in line with the development trend of large-scale seismic exploration.
Existing wireless seismometers utilize wifi to recycle and transmit data, but when the number of acquisition stations becomes large, because each acquisition station preempts wifi resources, the data transmission speed can be greatly reduced. Therefore, in the practical situation, in the large-scale seismic exploration engineering, in order to ensure the data quality, concentrated data recovery is finally carried out, concentrated wired recovery is adopted, the working steps during data recovery are increased by the cable for recovery, and the working efficiency is reduced.
Emerging rising 5G communication technologies have ultra-fast transmission speeds, and large capacities; the 5G technology has downward compatibility with the existing wireless communication technologies such as 4G technology, and the existing 4G base station which is widely used can be utilized, so that the application of the technology is more flexible. The wireless seismograph can also reach a new altitude at the beginning of the 5G era.
But the 4G technology at the present stage also has an incomparable advantage to the 5G technology at the present stage. Currently, 4G will coexist with 5G technology for a long time in the future, with extensive coverage and experience in large-scale business.
The wide coverage rate of the 4G technology enables the technology to be normally used in the field, but the 5G technology is more difficult to use in the field than the 4G technology due to the fact that the frequency is too high, the wavelength is too short, the diffraction capacity is poor.
The 5G technology can meet the data recovery requirements in the aspects of transmission speed, data throughput, access point capacity and the like. However, the 5G technology has a disadvantage of poor diffraction ability, which makes it insufficient for remote monitoring in the field.
Disclosure of Invention
The invention aims to solve the technical problems of providing a 5G and 4G combined communication method of a wireless seismometer, which has downward compatibility to the existing wireless communication technologies such as 4G and the like by utilizing the 5G technology, solves the defects in the background technology, and has the characteristics of quick data recovery, large capacity, good quality, flexible use and strong environmental adaptability.
The present invention has been achieved in such a way that,
A method of 5G and 4G combined communication for a wireless seismograph, the method comprising: controlling a 5G communication module through an SPI interface of a main control unit of each wireless seismometer, sending an instruction, closing a 5G function in a field working stage, starting 4G communication, and communicating with a host computer through a 4G base station and the Internet by the seismometer to set parameters of the seismometer and communicate state monitoring information;
And in the data recovery stage, the seismograph communicates with the host computer through the 5G micro base station and the Internet to realize rapid and large-scale recovery of stored data.
Further, the 5G communication module is mapped into a network module, the network module is connected with the Internet through a PPP dial-up networking mode, a file containing fixed IP information is prestored in a TF card of each wireless seismograph, the wireless seismograph is started and initialized, the file of the fixed IP information is read to obtain fixed IP, and standard UDP connection is established with a host computer.
Further, the seismograph is initialized, firstly, the file of the IP information in the TF card is read, the correctness of the IP is judged, and if the IP is incorrect, the error is reported; otherwise, the PPP program is called to connect with the network, a UDP protocol socket is established to send a registration packet to the host, and the host waits for determination; and setting n times of waiting opportunities for m seconds, if the host cannot determine, disconnecting the network and reporting errors, otherwise, confirming that the connection is successful by the host, and enabling the upper computer and the lower computer to interact through UDP transmission instructions.
Further, after the seismograph is initialized, various instructions of the host computer are started to wait, including acquisition instructions, mode instructions and data recovery instructions, after the instructions are received, the executable judgment of the instructions is firstly carried out, the reasons can be returned to the host computer, the confirmation of the host computer is waited, and the instructions are waited again after the confirmation; if the instruction can be executed, the execution result is returned to the host, whether the ending instruction is executed is judged, and if the ending instruction is not executed, the instruction sent by the host is continued to be waited.
A5G and 4G combined communication system of a wireless seismograph comprises a host computer, a 4G base station, a 5G micro base station and a plurality of wireless seismographs, wherein the wireless seismograph controls a 5G communication module through an SPI interface of a main control unit, sends an instruction, closes a 5G function in a field working stage, starts 4G communication, and communicates with the host computer through the 4G base station to set parameters of the seismograph and communicate state monitoring information;
And in the data recovery stage, the seismograph communicates with the host computer through the 5G micro base station and the Internet to realize rapid and large-scale recovery of stored data.
Further, the wireless seismograph comprises a main control unit, a 5G communication module and a TF card, wherein the 5G communication module and the TF card are connected with the main control unit, a file containing fixed IP information is prestored in the TF card of the wireless seismograph, the wireless seismograph is initialized after being started, the file of the fixed IP information is read to obtain fixed IP, and standard UDP connection is established with a host computer.
Further, the wireless seismograph also comprises an acquisition module, wherein the acquisition module comprises a detector for detecting seismic signals, the signals are transmitted to the main control unit through an A/D analog-to-digital conversion circuit after being processed by the signal preprocessing circuit, and sine waves are generated by adopting a D/A analog-to-digital conversion circuit under the control of the main control unit and are input to the A/D analog-to-digital conversion circuit to carry out self-test of the system.
Further, the main control unit controls 4G or 5G selection of the 5G communication module.
Compared with the prior art, the invention has the beneficial effects that: according to the invention, the downward compatibility of the 5G technology is utilized, 4G communication is started in the field working stage, the gain of the acquisition station can be interactively changed through the upper computer and the lower computer, the sampling rate is increased, the working efficiency is improved, the communication mode is switched according to the working environment, the network resources are fully utilized, the use of cables is avoided in wireless communication, the maintenance cost is reduced, and the environmental adaptation stress is improved; the invention starts 5G communication in the data concentrated recovery stage, which utilizes the extremely fast transmission speed of the 5G technology, realizes the rapid recovery of the collected data, utilizes the ultra-large capacity and the spitting and swallowing amount of the 5G technology, realizes the simultaneous recovery of a large amount of data, and utilizes the technologies of large-scale multiple antennas and the like applied in the 5G technology to realize the high-quality recovery of the data.
Drawings
Fig. 1 is a schematic diagram of a system networking of the present invention, and fig. 1 (a) is a schematic diagram of a structure using a 4G base station; fig. 1 (b) is a schematic structural diagram of a 5G base station, and fig. 1 (c) is an application scenario diagram;
FIG. 2 is a flow chart of the connection of the 5G communication module to the host according to the present invention;
FIG. 3 is an interaction diagram between a host seismograph of the present invention;
FIG. 4 is a schematic diagram of a seismograph frame of the present invention;
FIG. 5 is a seismograph preprocessing circuit of the present invention;
FIG. 6 is a schematic diagram of a power circuit formed by a μModule voltage regulator and an LDO;
In the accompanying drawings: 1. the three-component detector comprises a three-component detector body, a signal preprocessing circuit, a3, A/D (analog to digital) conversion circuit, a4, D/A (digital to analog) conversion circuit, a 5, STM32 main control unit, a 6, a status lamp, a 7, a 5G communication Module, a 8, a TF card, a 9, an external power supply, a 10, a charging circuit, a 11, a battery, a 12, a mu Module-LDO circuit, a 13, a GPS Module, a 14, a host, a 15, the Internet, a 16, a 4G base station, a 17, a 5G micro base station, a 18, a protection circuit, a 19, an RC (remote control) filter circuit, a 20, an analog switch, a 21, a pre-amplification circuit, a 22, a seismometer, a 23, a mu Module voltage stabilizer, a 24, an LDO voltage stabilizer, a 25, an LCR circuit, a 26 and an antenna.
Detailed Description
The present invention will be described in further detail with reference to the following examples in order to make the objects, technical solutions and advantages of the present invention more apparent. It should be understood that the specific embodiments described herein are for purposes of illustration only and are not intended to limit the scope of the invention.
Referring to fig. 1 (a), 1 (b) and 1 (c), a 5G and 4G combined communication method applied to wireless seismometers is disclosed, wherein a 5G communication module is controlled through an SPI interface of a main control unit of each wireless seismometer 22, a communication mode is selected according to a working environment, rapid and massive recovery of stored data is realized through 5G communication in a data recovery stage, the 5G communication module is utilized to have downward compatibility with existing wireless communication technologies such as 4G, the 5G function is closed in a field working stage, the 4G communication is started, and remote monitoring such as parameter setting and state monitoring is performed on the seismometers. In the field working stage, the seismograph with the 5G communication module communicates with the host computer through the existing 4G base station 16, the antenna 26 and the Internet 15 as shown in FIG. 1 (a); in the data recovery stage, the seismograph with the 5G communication module communicates with the host computer 14 through the 5G micro base station 17, the antenna 26 and the internet 15 as shown in fig. 1 (b). The 5G communication module is compatible with 4G communication, is responsible for rapidly and largely recovering data at the end of an experiment and communicating with a seismometer on site, and adopts a method of mapping the 5G communication module into a network device and adopts a PPP dial-up networking mode for networking; because the IP allocated by the network operator is dynamic at present, in order to solve the problem, a file containing fixed IP information is prestored in the TF card of each seismometer, and each time the network operator is started, the file is read to obtain the fixed IP, so that a standard UDP connection is established with the host, and a flowchart of connecting the 5G communication module to the host is shown in fig. 2: the seismograph is initialized, an IP file in a TF card is read first, the correctness of the IP is judged, and if the IP is incorrect, an error is reported; otherwise, the PPP program is called to carry out networking, a UDP socket is established to send a registration packet to the host, and the host waits for determination; there is a total of 5 waiting opportunities of 15 seconds, if the host fails to determine, the network is disconnected and the error is reported, otherwise, the host confirms that the connection is successful.
The UDP protocol has higher utilization rate of bandwidth and less cost, so the UDP protocol is adopted between the host and the seismometer to interact, the acquisition instruction, the mode instruction, the data recovery instruction and the like are transmitted, and in order to overcome the unreliability of UDP, the interaction between the host and the seismometer is added with an inquiry step to improve the reliability of the transmission instruction, and the interaction process is shown in figure 3: after the seismograph is initialized, various instructions of the host computer are started to wait, including acquisition instructions, mode instructions, data recovery instructions and the like, after the instructions are received, the executable judgment of the instructions is firstly carried out, the instructions cannot be executed, reasons can be returned to the host computer, the confirmation of the host computer is waited, and the instructions are waited again after the confirmation; if the instruction can be executed, the execution result is returned to the host, whether the ending instruction is executed is judged, and if the ending instruction is not the ending instruction, the instruction sent by the host is continued to be waited.
Referring to fig. 4, each wireless seismograph adopted in the embodiment of the present invention includes an STM32 main control unit 5, and a power module, an acquisition module, a 5G communication module 7, a TF card 8, a GPS module 13, and a status light 6 connected to the STM32 main control unit; the acquisition module comprises a three-component detector 1 for detecting signals, the three-component detector 1 is connected with a signal preprocessing circuit 2, the signal preprocessing circuit is connected with an A/D analog-to-digital conversion circuit 3 for transmitting the signals to a main control unit 5, and the main control unit 5 controls a D/A digital-to-analog conversion circuit 4 for self-testing of the A/D analog-to-digital conversion circuit 3. Referring to fig. 5, the seismic signal preprocessing circuit 2 is provided to include an input protection circuit 18, an rc filter circuit 19, an analog switch 20, and a pre-amplifier circuit 21, which are sequentially connected. The power Module connected with the STM32 main control unit comprises an external power supply 9, a battery 11 is charged through a charging circuit 10, a mu mode-LDO circuit 12 is connected through the battery 11, and the power Module supplies power for each Module of the whole acquisition station.
Referring to fig. 5, the seismic signals collected by each wireless seismograph are input to a signal preprocessing circuit by a three-component detector 1, spike voltage pulses are eliminated by an input protection circuit 18 and an RC filter circuit 19, high-frequency noise is filtered, common-mode interference resistance is improved, and the seismic signals are amplified by an analog switch 20 and a pre-amplifying circuit 21 with a data collection mode working state setting function. The preprocessed signals enter an A/D analog-to-digital conversion circuit 3, the A/D analog-to-digital conversion circuit 3 converts the seismic signals into storable digital signals, and the storable digital signals are stored in the TF card by an STM32 main control unit. And when the stored data is recovered after the work is finished, the stored data is wirelessly transmitted to a host unit through a 5G communication module, and the subsequent data processing is performed. The D/A digital-to-analog conversion circuit 4 generates sine waves to be input into the A/D analog-to-digital conversion circuit 3 and stored, so that the system self-test is performed, the working state of the acquisition station can be seen through the status lamp, meanwhile, the 5G communication module opens the 4G communication function through the mode selection instruction, and the parameter setting and working state of the seismometer can be monitored with the host computer in real time on site.
STM32 master control unit links to each other with 5G communication module, collection module, power module, synchronous module, TF card circuit, status light, controls the work of each module or peripheral hardware. The STM32 main control unit sets parameters of the A/D analog-to-digital conversion circuit and the D/A digital-to-analog conversion circuit through the FSMC bus, and comprises resetting of the A/D analog-to-digital conversion circuit, selection of a mode, a sampling rate and a gain of serial port receiving data, resetting of the D/A digital-to-analog conversion circuit, selection of a synchronous mode and selection of an output mode, and meanwhile, the main control unit also controls 4G or 5G selection of the 5G communication module.
The acquisition stations related to the invention are synchronized through the GPS module, and the GPS module can receive and process the synchronization instruction of the STM32 main control unit to realize synchronous acquisition.
Referring to fig. 6, the power Module charges the built-in battery through the external power supply 9 via the charging circuit, and the battery passes through the mu mode-LDO circuit, wherein the mu mode-LDO circuit adopts the novel mu mode voltage stabilizer 23 and the LDO voltage stabilizer 24 to form a power circuit, and outputs different voltage values through the LCR circuit 25 to replace the power circuit formed by the traditional switching voltage stabilizer and the LDO, so that a more efficient, purer and lower-noise power supply can be obtained to supply power to each internal Module.
The 5G communication module is responsible for data transmission, and on-site setting and state monitoring of seismometer parameters. Because the 5G antenna is small in size, the 5G antenna can be directly attached to or embedded into the top shell of the instrument, and space is saved.
The following describes the use of the embodiment of the present patent in detail with specific field tests:
1) The wireless storage seismometers are arranged in a scattered manner through field observation, and each seismometer is connected with a buried three-component detector as shown in fig. 1 (a).
2) After each seismograph is started, the background noise field is recorded, the seismograph is connected to the Internet through 4G communication, and as shown in fig. 1 (a), the parameters of the seismograph are set, and the seismograph is set for self-checking.
3) When the seismic source works, the acquisition system starts to acquire the seismic signals generated in the excitation process. Stored in the TF card.
4) And after the collection is finished, closing the collection station and recycling the instrument.
6) Data processing is performed, and the seismometers are concentrated near the 5G micro base station, and a large amount of data is quickly recovered through a 5G communication module as shown in fig. 1 (b). Information about the surrounding rock structure, lithology and the like such as time, energy, speed, frequency and the like is extracted according to the seismic records, and the geological structure morphology and the mechanical and physical parameters of the surrounding rock are deduced and explained.
The foregoing description of the preferred embodiments of the invention is not intended to be limiting, but rather to cover all modifications, equivalents, and alternatives falling within the spirit and principles of the invention.
Claims (1)
1. A method of 5G and 4G combined communication for a wireless seismometer, the method comprising: the method comprises the steps that a 5G communication module is controlled through an SPI interface of a main control unit of each wireless seismograph, an instruction is sent, a 5G function is closed in a field working stage, 4G communication is started, the wireless seismograph communicates with a host computer through a 4G base station and the Internet, parameter setting is conducted on the wireless seismograph, and state monitoring information communication is conducted;
in the data recovery stage, the wireless seismograph communicates with a host computer through a 5G micro base station and the Internet to realize rapid and large-scale recovery of stored data;
mapping the 5G communication module into a network module, connecting the network by PPP dial-up networking, pre-storing a file containing fixed IP information in the TF card of each wireless seismograph, starting up for initialization, reading the file of the fixed IP information to obtain fixed IP, and establishing standard UDP connection with a host;
The wireless seismograph is initialized, firstly, the file of the IP information in the TF card is read, the correctness of the IP is judged, and if the IP is incorrect, the error is reported; otherwise, the PPP program is called to connect with the network, a UDP protocol socket is established to send a registration packet to the host, and the host waits for determination; setting n times of waiting opportunities for m seconds, if the host cannot determine, disconnecting the network and reporting errors, otherwise, confirming that the connection is successful by the host;
After the wireless seismograph is initialized, various instructions of the host computer are started to wait, including acquisition instructions, mode instructions, data recovery instructions, information monitoring instructions and ending instructions, after the instructions are received, the executable judgment of the instructions is firstly carried out, the reasons can be returned to the host computer, the confirmation of the host computer is waited, and the instructions are waited again after the confirmation; if the instruction can be executed, the execution result is returned to the host, whether the ending instruction is executed is judged, and if the ending instruction is not the ending instruction, the instruction sent by the host is continued to be waited.
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| CN111123353A (en) * | 2019-12-24 | 2020-05-08 | 中国科学院地质与地球物理研究所 | Real-time seismic data acquisition device, system and method |
| CN111580155A (en) * | 2020-04-28 | 2020-08-25 | 山东知微智成电子科技有限公司 | Local storage seismic exploration node instrument system with 4G remote monitoring function |
| CN114430531A (en) * | 2020-09-16 | 2022-05-03 | 中国石油化工股份有限公司 | GPS data transmission system, method, device, computer equipment and storage medium |
| CN114430418A (en) * | 2020-09-28 | 2022-05-03 | 中国石油化工股份有限公司 | Seismic data transmission system, method, apparatus, computer device, and storage medium |
| CN112785828B (en) * | 2020-12-14 | 2022-04-22 | 江苏集萃微纳自动化系统与装备技术研究所有限公司 | Seismic exploration system and method with wireless communication and wired network mixed |
| CN116299663A (en) * | 2023-03-16 | 2023-06-23 | 深圳面元智能科技有限公司 | Method, device, equipment and storage medium for transmitting acquisition data based on seismograph |
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