CN115002581A - Stress monitoring method and system for natural electromagnetic pulse vector signal - Google Patents
Stress monitoring method and system for natural electromagnetic pulse vector signal Download PDFInfo
- Publication number
- CN115002581A CN115002581A CN202210935970.5A CN202210935970A CN115002581A CN 115002581 A CN115002581 A CN 115002581A CN 202210935970 A CN202210935970 A CN 202210935970A CN 115002581 A CN115002581 A CN 115002581A
- Authority
- CN
- China
- Prior art keywords
- communication
- data
- substation
- master station
- stress
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
- 238000012544 monitoring process Methods 0.000 title claims abstract description 46
- 238000000034 method Methods 0.000 title claims abstract description 28
- 238000004891 communication Methods 0.000 claims description 274
- 230000005540 biological transmission Effects 0.000 claims description 27
- 230000001360 synchronised effect Effects 0.000 claims description 20
- 239000004973 liquid crystal related substance Substances 0.000 claims description 19
- 239000013307 optical fiber Substances 0.000 claims description 15
- 238000006243 chemical reaction Methods 0.000 claims description 13
- 238000012545 processing Methods 0.000 claims description 9
- 230000003993 interaction Effects 0.000 claims description 6
- 230000008569 process Effects 0.000 claims description 4
- 230000009191 jumping Effects 0.000 claims description 3
- 238000012546 transfer Methods 0.000 claims description 3
- 230000003321 amplification Effects 0.000 claims description 2
- 238000005259 measurement Methods 0.000 claims description 2
- 238000003199 nucleic acid amplification method Methods 0.000 claims description 2
- 239000003245 coal Substances 0.000 abstract description 10
- 239000011435 rock Substances 0.000 description 5
- 208000027418 Wounds and injury Diseases 0.000 description 4
- 238000004873 anchoring Methods 0.000 description 4
- 230000006378 damage Effects 0.000 description 4
- 208000014674 injury Diseases 0.000 description 4
- 238000010586 diagram Methods 0.000 description 3
- 230000000694 effects Effects 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 239000002689 soil Substances 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 230000008878 coupling Effects 0.000 description 1
- 238000010168 coupling process Methods 0.000 description 1
- 238000005859 coupling reaction Methods 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 238000005065 mining Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000002093 peripheral effect Effects 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
Images
Classifications
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04Q—SELECTING
- H04Q9/00—Arrangements in telecontrol or telemetry systems for selectively calling a substation from a main station, in which substation desired apparatus is selected for applying a control signal thereto or for obtaining measured values therefrom
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21D—SHAFTS; TUNNELS; GALLERIES; LARGE UNDERGROUND CHAMBERS
- E21D21/00—Anchoring-bolts for roof, floor in galleries or longwall working, or shaft-lining protection
- E21D21/02—Anchoring-bolts for roof, floor in galleries or longwall working, or shaft-lining protection having means for indicating tension
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21F—SAFETY DEVICES, TRANSPORT, FILLING-UP, RESCUE, VENTILATION, OR DRAINING IN OR OF MINES OR TUNNELS
- E21F17/00—Methods or devices for use in mines or tunnels, not covered elsewhere
- E21F17/18—Special adaptations of signalling or alarm devices
- E21F17/185—Rock-pressure control devices with or without alarm devices; Alarm devices in case of roof subsidence
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01L—MEASURING FORCE, STRESS, TORQUE, WORK, MECHANICAL POWER, MECHANICAL EFFICIENCY, OR FLUID PRESSURE
- G01L5/00—Apparatus for, or methods of, measuring force, work, mechanical power, or torque, specially adapted for specific purposes
- G01L5/0028—Force sensors associated with force applying means
-
- G—PHYSICS
- G08—SIGNALLING
- G08B—SIGNALLING OR CALLING SYSTEMS; ORDER TELEGRAPHS; ALARM SYSTEMS
- G08B31/00—Predictive alarm systems characterised by extrapolation or other computation using updated historic data
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P90/00—Enabling technologies with a potential contribution to greenhouse gas [GHG] emissions mitigation
- Y02P90/02—Total factory control, e.g. smart factories, flexible manufacturing systems [FMS] or integrated manufacturing systems [IMS]
Landscapes
- Engineering & Computer Science (AREA)
- Mining & Mineral Resources (AREA)
- Life Sciences & Earth Sciences (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Geochemistry & Mineralogy (AREA)
- Geology (AREA)
- General Physics & Mathematics (AREA)
- Physics & Mathematics (AREA)
- Chemical & Material Sciences (AREA)
- Analytical Chemistry (AREA)
- Computer Networks & Wireless Communication (AREA)
- Structural Engineering (AREA)
- Business, Economics & Management (AREA)
- Computing Systems (AREA)
- Emergency Management (AREA)
- Arrangements For Transmission Of Measured Signals (AREA)
Abstract
The invention discloses a stress monitoring method and system of natural electromagnetic pulse vector signals, and relates to the technical field of coal mine tunnel stress monitoring. The invention relates to a stress monitoring method and a stress monitoring system for natural electromagnetic pulse vector signals, which realize omnibearing online real-time monitoring of coal mine roadways.
Description
Technical Field
The invention relates to the technical field of stress monitoring of coal mine roadways, in particular to a stress monitoring method and system of natural electromagnetic pulse vector signals.
Background
The anchoring technology is that one end of a pulled rod piece is fixed in the rock stratum or the soil layer of the side slope or the foundation, and the fixed end of the pulled rod piece is called an anchoring end (or an anchoring section); the other end is connected with an engineering building, can bear the thrust applied to the building by soil pressure, water pressure or internal force, and utilizes the anchoring force of the stratum to maintain the stability of the building.
The anchor bolt support belongs to the concealed engineering, and the occurrence of surrounding rock disasters of a roadway such as roof collapse, two-side caving, working face hole cutting and the like can be caused if the support effect is poor. Therefore, after the anchor bolt supporting construction, the stress distribution and the size of the anchor bolt must be comprehensively and systematically monitored, and the stability and the safety of the surrounding rock of the roadway are judged. At present, the stress monitoring of the anchor rod is carried out on a single anchor rod, most monitoring means are resistance strain gauge type force measuring anchor rods and hydraulic anchor rod force meters, although the stress size and distribution of the anchor rods can be measured, the coupling relation between adjacent anchor rod groups and surrounding rocks cannot be reflected, moreover, manual intermittent observation and acquisition are adopted, the monitoring result is lagged, the obtained data error is large, and the measuring station is distributed in a breakpoint mode, is discontinuous and is easily subjected to electromagnetic interference; in addition, the existing coal mine tunnel is long in length, a single anchor rod is subjected to stress monitoring, the workload is large, the operation is inconvenient, the labor is wasted, the economy is high, and the all-dimensional online real-time monitoring of the coal mine tunnel is difficult.
In view of the current situation, a new mining stress monitoring means is provided, and for this reason, a stress monitoring method and system for natural electromagnetic pulse vector signals are provided.
Disclosure of Invention
The invention mainly aims to provide a stress monitoring method and a stress monitoring system for a natural electromagnetic pulse vector signal, which can effectively solve the problems in the background technology.
In order to realize the purpose, the invention adopts the technical scheme that: a stress monitoring method of a natural electromagnetic pulse vector signal comprises the following steps:
s1: the method comprises the steps that a force-measuring anchor rod sensor is arranged on an anchor rod of a roadway of a mine hole, a stress signal of the force-measuring anchor rod sensor is processed by a microprocessor, the microprocessor carries out analog-to-digital conversion on the stress signal of the force-measuring anchor rod sensor and then transmits the stress signal to a main control chip, an analog front end is arranged in the main control chip, the analog front end adopts an integrated chip with an amplifying function, the main control chip controls the selection and collection of analog quantities of channels of the analog front end through an SPI bus, and the main control chip finally sends anchor rod sensor measurement data processed by the microprocessor to a communication master station through a first wireless communication sending unit;
s2: the communication master station performs clock calibration on the data sent by the first wireless communication sending unit, then sends the data to an upper computer by using a second wireless communication sending unit to realize communication connection with the upper computer and perform data transmission so that a worker can check and manage historical data in real time, and the specific process of receiving and processing the data by the communication master station is as follows;
s201: the communication master station is internally provided with a first wireless communication receiving unit, the first wireless communication receiving unit is used for receiving data which are sent by a plurality of first wireless communication sending units and correspond to the force-measuring anchor rod sensors, then the data are sent to the main controller through an SPI bus, then the data are displayed by a liquid crystal display screen and stored, the liquid crystal display screen is a man-machine interaction interface, the data of each sensor are inquired according to nodes and time, the data are analyzed and processed and displayed in a curve form, the acquisition intervals, the transmission intervals, the network IDs and the time calibration of each sensor are set through a touch screen, and finally all the data of the communication master station are sent to an upper computer on the ground through an Ethernet optical fiber conversion module;
s3: the upper computer is mainly used for summarizing each force measuring anchor rod sensor data and analyzing and processing the force measuring anchor rod sensor data, the workload of safety monitoring on coal mine roadways is reduced, the operation steps are convenient, manpower resources are saved, the economic expenditure is reduced, and all-round online real-time, rapid and efficient monitoring on the coal mine roadways is realized.
Preferably, the analog front end in step S1 is a highly integrated, multi-channel, low-power consumption 24-bit amplification integrated chip, and the analog front end provides seven single-ended inputs or four differential inputs, thereby allowing connection of more force-measuring anchor sensors, and the force-measuring anchor has 6 paths of differential signals, so that 2 LMP90100 chips are used as a signal acquisition circuit for the force-measuring anchor.
Preferably, the main control chip obtains a corresponding axial force from a voltage signal acquired by the force-measuring anchor rod sensor through a preset calibrated corresponding relation between the axial force and the voltage, if the obtained data exceeds an alarm value, the data is displayed on the nixie tube to remind a worker to check the data, an axial force and voltage corresponding relation table is arranged inside the main control chip, each voltage value corresponds to the axial force, the alarm value of the control chip is an alarm threshold value set in advance by the worker, and when the alarm threshold value is greater than the alarm threshold value, the anchor rod stress exceeds the anchor rod bearing force, so that a tunnel collapse accident may occur.
Preferably, the first wireless communication sending units are used by matching the main control chip and the integrated chip, the sending power of the wireless communication module is increased, so that two adjacent first wireless communication sending units can communicate with each other without errors, and after one first wireless communication sending unit fails, a signal is transmitted to the next node in a jumping mode to improve the reliability of the system.
Preferably, each first wireless communication sending unit serves as a communication substation, a plurality of communication substations are in communication connection with the communication master station, the communication connection includes not only ethernet optical fiber communication connection, but also wireless transmission is performed by using electromagnetic pulse vector signals, so that it is ensured that the optical fiber line is damaged, the communication connection between each communication substation and the communication master station cannot be realized, and stress monitoring and tunnel collapse early warning are performed.
A stress monitoring system of a natural electromagnetic pulse vector signal comprises a sensor node module, a communication master station and an upper computer, wherein the sensor node module is used for acquiring anchor rod data and uploading data by arranging a plurality of force measuring anchor rod sensors, the communication master station is used as a data communication master station for managing each sensor node module, receiving the anchor rod data, storing the anchor rod data and uploading data, and the upper computer is used for summarizing each sensor data and analyzing and processing the sensor data by the communication master station;
the communication master station comprises a main processor unit, a first wireless communication receiving unit, a power protection unit, a storage unit, a liquid crystal display unit and an Ethernet optical fiber conversion unit, wherein the first wireless communication receiving unit is used for receiving data transmitted by a plurality of force measuring anchor rod sensors and transmitted by the first wireless communication transmitting unit and then transmitted to the main processor unit through an SPI bus, the main processor unit adopts a main controller, the liquid crystal display unit adopts a liquid crystal display screen and is mainly used for displaying the data, the storage module is used for storing the data, the Ethernet optical fiber conversion unit is used for transmitting the data of the communication master station to an upper computer on the ground, a communication protocol is arranged in the communication master station, and the data receiving and data transmission among a plurality of communication master stations are realized through a specific communication protocol, the specific communication protocol is used for guaranteeing information transmission among all signals, the safety stability and the high efficiency among the information transmission are guaranteed, the communication data transmission delay is reduced, the timely early warning of a roadway is guaranteed, potential safety hazards and personnel injury are reduced, and the use safety of the system is improved.
Preferably, the lcd display unit is a human-computer interaction interface, and the data is analyzed and processed by querying the data of each sensor according to the node and time, and is visually displayed in a curve form, and the acquisition interval, the transmission interval, the network ID and the time calibration of each sensor are set by the touch screen.
Preferably, each first wireless communication transmitting unit is used as an individual communication substation, the communication protocol in the communication master station is provided with a unique network ID for each communication substation, if there are six communication substations, the communication substations are respectively the first communication substation, the second communication substation, the third communication substation, the fourth communication substation, the fifth communication substation and the sixth communication substation, the communication substations are respectively marked as 0xff01 to 0xff06 from the first communication substation to the sixth communication substation, when the initial settings of all the communication substations are completed, each communication substation is shifted to a state waiting for receiving the synchronization time, at this time, the communication master station transmits a synchronization time command to the ZigBee communication master station, the ZigBee communication master station transmits the command to the sixth communication substation after receiving the synchronization time command, the sixth communication substation starts a local two-hour sleep timer after receiving the command, starting timing; then the sixth communication substation sends the synchronous time command to the fifth communication substation, the fifth communication substation receives the synchronous time command from the sixth communication substation, then works the same as the sixth communication substation, then sends the synchronous command to the fourth communication substation, and transmits the synchronous command in turn, when the first communication substation receives the synchronous time, the first communication substation transfers to the state of sending stress data to the second communication substation, the first communication substation sends the data to the second communication substation, and enters a sleep state, when the second communication substation receives the data from the first communication substation, the second communication substation packs the stress data collected currently and the data from the first communication substation together and sends the data to the third communication substation, then enters the sleep state, and transmits the data in turn, and finally, when the sixth communication substation receives the data from the fifth communication substation, the sixth communication substation packs the data together with the data from the fourth communication substation, the communication system is sent to a ZigBee communication master station, the ZigBee communication master station can send all data to the communication master station through an SPI (serial peripheral interface) bus after receiving all the data, the communication master station can store all the data, and accordingly, the communication is completed, after two hours, each communication substation can wake up at the same time to prepare for next communication.
Compared with the prior art, the invention has the following beneficial effects:
in the invention, a sensor node module, a communication master station and an upper computer are arranged, the sensor node module is responsible for acquiring anchor rod data and uploading data by arranging a plurality of force measuring anchor rod sensors, the communication master station is used as a data communication master station and is responsible for managing each sensor node module, receiving the anchor rod data, storing the anchor rod data and uploading data, the upper computer is responsible for summarizing each sensor data and analyzing and processing the sensor data by the communication master station, the communication master station comprises a main processor unit, a first wireless communication receiving unit, a power protection unit, a storage unit, a liquid crystal display unit and an Ethernet optical fiber conversion unit, the first wireless communication receiving unit is responsible for receiving data sent by the force measuring anchor rod sensors sent by the first wireless communication sending unit and then sending the data to the main processor unit by an SPI bus, and the main processor unit adopts a main controller, the liquid crystal display screen display unit is mainly used for displaying data, the storage module is used for storing the data, the Ethernet optical fiber conversion unit is used for sending the data of the communication master station to an upper computer on the ground, a communication protocol is arranged in the communication master station, data receiving and data transmission among multiple communication master stations are realized through a specific communication protocol, the specific communication protocol is used for ensuring information transmission among various signals, the safety stability and the high efficiency among the information transmission are ensured, the communication data transmission delay is reduced, the timely early warning of a roadway is ensured, the potential safety hazard and the personal injury are reduced, the safety of the system use is improved, the safety monitoring workload of the coal mine roadway is finally reduced, the operation steps are convenient, the human resources are saved, the economic expenditure is reduced, and the omnibearing online real-time and high-efficiency monitoring of the coal mine roadway is realized, the control system can monitor the stress size and the distribution condition of the anchor rod at different depths and different periods in real time, know the stress characteristic of the anchor rod at the same time, and can timely give out early warning protection. The design realizes the underground intelligent monitoring of the coal mine.
Drawings
FIG. 1 is a flow chart of a method for stress monitoring of a natural electromagnetic pulse vector signal according to the present invention;
FIG. 2 is a system diagram of a stress monitoring system for natural electromagnetic pulse vector signals according to the present invention;
FIG. 3 is a system diagram of a sensor node module in a stress monitoring system for natural electromagnetic pulse vector signals according to the present invention;
fig. 4 is a system block diagram of a communication master station of a stress monitoring system for natural electromagnetic pulse vector signals according to the present invention.
Detailed Description
In order to make the technical means, the creation characteristics, the achievement purposes and the effects of the invention easy to understand, the invention is further described with the specific embodiments.
In the description of the present invention, it should be noted that the terms "upper", "lower", "inner", "outer", "front", "rear", "both ends", "one end", "the other end", and the like indicate orientations or positional relationships based on those shown in the drawings, and are only for convenience of description and simplicity of description, but do not indicate or imply that the referred device or element must have a specific orientation, be constructed in a specific orientation, and be operated, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first" and "second" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.
In the description of the present invention, it is to be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "disposed," "connected," and the like are to be construed broadly, such as "connected," which may be fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meanings of the above terms in the present invention can be understood in specific cases to those skilled in the art.
Referring to fig. 1-4, the present invention is a method for monitoring stress of a natural electromagnetic pulse vector signal, comprising the following steps:
s1: the method comprises the steps that a force-measuring anchor rod sensor is arranged on an anchor rod of a roadway of a mine hole, a stress signal of the force-measuring anchor rod sensor is processed by a microprocessor, the microprocessor carries out analog-to-digital conversion on the stress signal of the force-measuring anchor rod sensor and then transmits the stress signal to a main control chip, an analog front end is arranged in the main control chip, the analog front end adopts an integrated chip with an amplifying function, the main control chip controls the selection and the collection of analog quantities of all channels of the analog front end through an SPI bus, and the main control chip finally sends the measured data of the anchor rod sensor processed by the microprocessor to a communication master station through a first wireless communication sending unit;
s2: the communication master station performs clock calibration on the data sent by the first wireless communication sending unit, then sends the data to the upper computer by using the second wireless communication sending unit to realize communication connection with the upper computer and perform data transmission, so that a worker can check and manage historical data in real time, and the specific process of receiving and processing the data by the communication master station is as follows;
s201: the communication master station is internally provided with a first wireless communication receiving unit, the first wireless communication receiving unit is used for receiving data, sent by a plurality of first wireless communication sending units, of corresponding force-measuring anchor rod sensors, then the data are sent to the main controller through an SPI bus, then the data are displayed by a liquid crystal display screen and stored, the liquid crystal display screen is a man-machine interaction interface, the data of each sensor are inquired according to nodes and time, the data are analyzed and processed and displayed in a curve form, the acquisition intervals, the transmission intervals, the network IDs (identity) and the time calibration of each sensor are set through a touch screen, and finally all the data of the communication master station are sent to an upper computer on the ground through an Ethernet optical fiber conversion module;
s3: the upper computer is mainly used for summarizing data of each force measuring anchor rod sensor and analyzing and processing the data.
In step S1, the analog front end is a highly integrated, multi-channel, low-power consumption 24-bit amplified integrated chip, and the analog front end provides seven single-ended inputs or four differential inputs, thereby allowing connection of more force-measuring anchor rod sensors, and the force-measuring anchor rod is provided with 6 paths of differential signals, so that 2 LMP90100 chips are used as a circuit for acquiring signals by the force-measuring anchor rod.
Wherein, the main control chip passes through the axial force that the dynamometry stock sensor gathered in advance and the corresponding relation of voltage, obtain corresponding axial force, if the data that obtain exceed the alarm value, then show on the charactron, the charactron mainly used shows specific content, remind the staff to look over, main control chip is inside to be equipped with axial force and voltage corresponding relation table, the axial force size of each voltage value correspondence, control chip's alarm value is the artificial alarm threshold value of setting for in advance, when being greater than the alarm threshold value, then stock stress surpasss stock bearing capacity, the accident of tunnel collapse probably appears.
The first wireless communication sending units are matched with the main control chip and the integrated chip for use, the transmitting power of the wireless communication module is increased, two adjacent first wireless communication sending units can communicate without errors mutually, and after one first wireless communication sending unit breaks down, signals are transmitted to the next node in a jumping mode to improve the reliability of the system.
Each first wireless communication sending unit is used as a communication substation, the communication substations are in communication connection with the communication master station, the communication connection comprises Ethernet optical fiber communication connection, electromagnetic pulse vector signals are used for wireless transmission at the same time, and therefore the condition that the optical fiber lines are damaged and the communication connection between each substation and the communication master station cannot be achieved is guaranteed, and stress monitoring and tunnel collapse early warning are achieved.
A stress monitoring system of natural electromagnetic pulse vector signals comprises a sensor node module, a communication master station and an upper computer, as shown in figure 3, the sensor node module is responsible for acquiring anchor rod data and uploading data by arranging a plurality of force-measuring anchor rod sensors, the communication master station is responsible for managing each sensor node module as a data communication master station, receiving the anchor rod data, storing the anchor rod data and uploading data, the upper computer is responsible for summarizing each sensor data and analyzing and processing the sensor data by the communication master station, the stress of the anchor rods at different depths and different periods and the distribution condition are monitored by analyzing each sensor data by the upper computer, the stress characteristics are known at the same time, early warning protection can be made in time, and the successful development of the system provides a basis for knowing the stress characteristics of surrounding rocks;
as shown in fig. 4, the communication master station includes a main processor unit, a first wireless communication receiving unit, a power protection unit, a storage unit, a liquid crystal display unit and an ethernet optical fiber conversion unit, wherein the first wireless communication receiving unit is responsible for receiving data transmitted from a plurality of force measuring anchor rod sensors transmitted by the first wireless communication transmitting unit and then transmitting the data to the main processor unit through an SPI bus, the main processor unit adopts a main controller, the liquid crystal display unit adopts a liquid crystal display screen for displaying the data, the storage module stores the data, the ethernet optical fiber conversion unit is used for transmitting the data of the communication master station to an upper computer on the ground, a communication protocol is arranged in the communication master station, data reception and data transmission between the multiple communication master stations are realized through a specific communication protocol, and information transmission between each signal is ensured by using the specific communication protocol, and the safety stability and the high efficiency between information transmission are ensured, the communication data transmission delay is reduced, the timely early warning of a roadway is ensured, the potential safety hazard and the injury of personnel are reduced, and the use safety of the system is improved.
The liquid crystal display unit is a human-computer interaction interface, data of each sensor are inquired according to nodes and time, the data are analyzed and processed, the data are visually displayed in a curve form, and the acquisition interval, the transmission interval, the network ID and the time calibration of each sensor are set through the touch screen.
Wherein each first wireless communication transmitting unit is used as an independent communication substation, the communication protocol in the communication master station is that each communication substation is provided with a unique network ID, if there are six communication substations which are respectively a first communication substation, a second communication substation, a third communication substation, a fourth communication substation, a fifth communication substation and a sixth communication substation, the first communication substation to the sixth communication substation are respectively marked as 0xff01 to 0xff06, when the initial setting of all the communication substations is completed, each communication substation is shifted to a state waiting for receiving the synchronous time, at this time, the communication master station transmits a synchronous time command to the ZigBee communication master station, the ZigBee communication master station transmits the command to the sixth communication substation after receiving the synchronous time command, the sixth communication substation starts a local two-hour sleep timer after receiving the command, starting timing; then the sixth communication substation will send the synchronous time command to the fifth communication substation, the fifth communication substation will do the same work as the sixth communication substation after receiving the synchronous time command from the sixth communication substation, then the synchronous command will be sent to the fourth communication substation, and transmitted in turn, after the first communication substation receives the synchronous time, it will transfer to the state of sending stress data to the second communication substation, the first communication substation will enter into sleep state after sending data to the second communication substation, after the second communication substation receives the data from the first communication substation, it will pack the stress data collected at present together with the data sent from the first communication substation and send to the third communication substation, then also enter into sleep state, and transmitted in turn, finally, after the sixth communication substation receives the data sent from the fifth communication substation, it will pack its data together with the fourth communication substation data, the ZigBee communication master station receives all data, and then the ZigBee communication master station can transmit the data to the communication master station through the SPI bus, the communication master station can store all data, and therefore the communication is completed two hours later, all communication substations can wake up at the same time to prepare for next communication, information transmission among all signals is guaranteed by using a specific communication protocol, safety stability and high efficiency among the information transmission are guaranteed, communication data transmission delay is reduced, timely early warning of a roadway is guaranteed, potential safety hazards and personnel injury are reduced, and the use safety of the system is improved.
The foregoing shows and describes the general principles and broad features of the present invention and advantages thereof. It will be understood by those skilled in the art that the present invention is not limited to the embodiments described above, which are described in the specification and illustrated only to illustrate the principle of the present invention, but that various changes and modifications may be made therein without departing from the spirit and scope of the present invention, which fall within the scope of the invention as claimed. The scope of the invention is defined by the appended claims and equivalents thereof.
Claims (8)
1. A stress monitoring method of a natural electromagnetic pulse vector signal is characterized by comprising the following steps: the method comprises the following steps:
s1: the method comprises the steps that a force-measuring anchor rod sensor is arranged on an anchor rod of a roadway of a mine hole, a stress signal of the force-measuring anchor rod sensor is processed by a microprocessor, the microprocessor carries out analog-to-digital conversion on the stress signal of the force-measuring anchor rod sensor and then transmits the stress signal to a main control chip, an analog front end is arranged in the main control chip, the analog front end adopts an integrated chip with an amplifying function, the main control chip controls the selection and collection of analog quantities of channels of the analog front end through an SPI bus, and the main control chip finally sends anchor rod sensor measurement data processed by the microprocessor to a communication master station through a first wireless communication sending unit;
s2: the communication master station performs clock calibration on the data sent by the first wireless communication sending unit, then sends the data to an upper computer by using a second wireless communication sending unit to realize communication connection with the upper computer and perform data transmission so that a worker can check and manage historical data in real time, and the specific process of receiving and processing the data by the communication master station is as follows;
s201: the communication master station is internally provided with a first wireless communication receiving unit, the first wireless communication receiving unit is used for receiving data which are sent by a plurality of first wireless communication sending units and correspond to the force-measuring anchor rod sensors, then the data are sent to the main controller through an SPI bus, then the data are displayed by a liquid crystal display screen and stored, the liquid crystal display screen is a man-machine interaction interface, the data of each sensor are inquired according to nodes and time, the data are analyzed and processed and displayed in a curve form, the acquisition intervals, the transmission intervals, the network IDs and the time calibration of each sensor are set through a touch screen, and finally all the data of the communication master station are sent to an upper computer on the ground through an Ethernet optical fiber conversion module;
s3: the upper computer is mainly used for summarizing the data of each force measuring anchor rod sensor and analyzing and processing the data.
2. The method for monitoring the stress of the natural electromagnetic pulse vector signal according to claim 1, wherein the method comprises the following steps: in step S1, the analog front end is a highly integrated, multi-channel, low-power consumption 24-bit amplification integrated chip, and the analog front end provides seven single-ended inputs or four differential inputs, thereby allowing connection of the force-measuring anchor rod sensors.
3. The method for monitoring the stress of the natural electromagnetic pulse vector signal according to claim 2, wherein the method comprises the following steps: and the main control chip obtains the corresponding axial force according to the voltage signal acquired by the force-measuring anchor rod sensor through the corresponding relation between the axial force and the voltage which is calibrated in advance, and if the obtained data exceeds an alarm value, the data is displayed on the digital tube to remind a worker to check the data.
4. The method for monitoring the stress of the natural electromagnetic pulse vector signal according to claim 3, wherein the stress monitoring method comprises the following steps: the first wireless communication sending units are used by the main control chip and the integrated chip in a matched mode, the sending power of the wireless communication module is increased, so that two adjacent first wireless communication sending units can communicate without errors, and simultaneously, after one first wireless communication sending unit fails, signals are transmitted to the next node in a jumping mode.
5. The method for monitoring the stress of the natural electromagnetic pulse vector signal according to claim 4, wherein the stress monitoring method comprises the following steps: each first wireless communication sending unit is used as a communication substation, and a plurality of communication substations are in communication connection with the communication master station.
6. A stress monitoring system of natural electromagnetic pulse vector signals is characterized in that: the stress monitoring system of the natural electromagnetic pulse vector signal is the stress monitoring system of the stress monitoring method of the natural electromagnetic pulse vector signal according to any one of claims 1 to 5, and comprises a sensor node module, a communication master station and an upper computer, wherein the sensor node module is responsible for acquiring anchor rod data and uploading the data by arranging a plurality of force measuring anchor rod sensors, the communication master station is responsible for managing each sensor node module as a data communication master station and receiving anchor rod data, storing the anchor rod data and uploading the data, and the upper computer collects the sensor data through the communication master station and analyzes and processes the sensor data;
the communication master station comprises a main processor unit, a first wireless communication receiving unit, a power supply protection unit, a storage unit, a liquid crystal display unit and an Ethernet-to-optical fiber unit, the first wireless communication receiving unit is used for receiving data transmitted by the force-measuring anchor rod sensors and sent by the first wireless communication sending unit, then the data is sent to the main processor unit through an SPI bus, the main processor unit adopts a main controller, the liquid crystal display screen display unit adopts a liquid crystal display screen mainly used for displaying data, the storage module stores the data, the Ethernet optical fiber conversion unit is used for transmitting the data of the communication master station to an upper computer on the ground, a communication protocol is arranged in the communication master station, and realizing data reception and data transmission among the communication master stations through a specific communication protocol.
7. The system for stress monitoring of natural electromagnetic pulse vector signals according to claim 6, wherein: the liquid crystal display unit is a human-computer interaction interface, data of each sensor are inquired according to nodes and time and are analyzed and processed, the data are visually displayed in a curve form, and the acquisition interval, the transmission interval, the network ID and the time calibration of each sensor are set through the touch screen.
8. The system for stress monitoring of natural electromagnetic pulse vector signals according to claim 6, wherein: each first wireless communication sending unit is used as an independent communication substation, a communication protocol in the communication master station is provided with a unique network ID for each communication substation, if six communication substations are respectively a first communication substation, a second communication substation, a third communication substation, a fourth communication substation, a fifth communication substation and a sixth communication substation, the first communication substation to the sixth communication substation are respectively marked as 0xff01 to 0xff06, each communication substation is transferred to a state of waiting for receiving synchronous time after the initial setting of all the communication substations is completed, at the moment, the communication master station sends a synchronous time command to the ZigBee communication master station, the ZigBee communication master station sends the command to the sixth communication substation after receiving the synchronous time command, the sixth communication substation starts a local two-hour sleep timer after receiving the command, starting timing; then the sixth communication substation sends the synchronous time command to the fifth communication substation, the fifth communication substation receives the synchronous time command from the sixth communication substation, then works the same as the sixth communication substation, then sends the synchronous command to the fourth communication substation, and transmits the synchronous command in turn, when the first communication substation receives the synchronous time, the first communication substation transfers to the state of sending stress data to the second communication substation, the first communication substation sends the data to the second communication substation, and enters a sleep state, when the second communication substation receives the data from the first communication substation, the second communication substation packs the stress data collected currently and the data from the first communication substation together and sends the data to the third communication substation, then enters the sleep state, and transmits the data in turn, and finally, when the sixth communication substation receives the data from the fifth communication substation, the sixth communication substation packs the data together with the data from the fourth communication substation, the data are sent to a ZigBee communication master station, the ZigBee communication master station can send the data to the communication master station through an SPI bus after receiving all the data, and the communication master station can store all the data.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210935970.5A CN115002581A (en) | 2022-08-05 | 2022-08-05 | Stress monitoring method and system for natural electromagnetic pulse vector signal |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210935970.5A CN115002581A (en) | 2022-08-05 | 2022-08-05 | Stress monitoring method and system for natural electromagnetic pulse vector signal |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN115002581A true CN115002581A (en) | 2022-09-02 |
Family
ID=83023037
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202210935970.5A Pending CN115002581A (en) | 2022-08-05 | 2022-08-05 | Stress monitoring method and system for natural electromagnetic pulse vector signal |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN115002581A (en) |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN212409767U (en) * | 2020-06-24 | 2021-01-26 | 黑龙江科技大学 | Mine hydrology automatic monitoring alarm system |
| CN214475499U (en) * | 2021-03-17 | 2021-10-22 | 山东科大中天安控科技有限公司 | Multi-parameter monitoring substation-based top-cut roadway-retaining safety monitoring wireless transmission system |
-
2022
- 2022-08-05 CN CN202210935970.5A patent/CN115002581A/en active Pending
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN212409767U (en) * | 2020-06-24 | 2021-01-26 | 黑龙江科技大学 | Mine hydrology automatic monitoring alarm system |
| CN214475499U (en) * | 2021-03-17 | 2021-10-22 | 山东科大中天安控科技有限公司 | Multi-parameter monitoring substation-based top-cut roadway-retaining safety monitoring wireless transmission system |
Non-Patent Citations (2)
| Title |
|---|
| 张保通等: "基于ZigBee的矿用应力监测系统的研究", 《电子技术应用》 * |
| 邵凤莹等: "矿用锚杆应力监测系统的设计", 《煤炭技术》 * |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN103823105B (en) | Wireless measurement system for debugging power transmission lines | |
| CN103410565B (en) | Bump many reference amounts process monitoring system and method for early warning | |
| CN207993206U (en) | A kind of landslide disaster Monitoring and forecasting system in real-time device | |
| CN205508103U (en) | Wireless high formwork intelligent data acquisition system | |
| CN201796490U (en) | Automatic monitoring system for stratum deep part displacement | |
| CN104535104A (en) | Online power transmission tower monitoring method and system of power system | |
| CN101561408A (en) | Soil humidity measuring device based on wireless microcomputer control | |
| CN202560325U (en) | Underground multiple-data monitor system for coal mine | |
| CN201335887Y (en) | Multi-parameter collecting transmission instrument of geological disasters | |
| CN102435853A (en) | Intelligent electromechanical impedance sensor used for structure health status monitoring | |
| CN202512418U (en) | Distributed comprehensive ecological environment monitoring station | |
| CN115002581A (en) | Stress monitoring method and system for natural electromagnetic pulse vector signal | |
| CN103208173A (en) | Embedded wireless intelligent sensor for geotechnical engineering monitoring | |
| CN202970793U (en) | Remote and field three-dimensional digital warning facility for deformation stability of tunnel primary support body | |
| CN109059793B (en) | Wireless laser matrix monitoring system and method for observing deformation of earth surface area | |
| CN209727052U (en) | A kind of roadway deformation dynamic monitoring system based on laser ranging technique | |
| CN210625862U (en) | Large-volume concrete temperature monitoring system based on Wi-Fi | |
| CN202512172U (en) | Intelligent machine electrical impedance sensor for monitoring structure health conditions | |
| CN203149799U (en) | Buried wireless intelligent sensor for monitoring geotechnical engineering | |
| CN206301190U (en) | One kind is based on GPRS tunnel wall rock deformation remote monitoring measurement systems | |
| CN215116260U (en) | Passive awakening system for landslide detection based on Internet of things | |
| CN212837779U (en) | Ground signal wireless transmission system for measurement while drilling and logging while drilling | |
| CN212931679U (en) | Concrete temperature measurement system based on loRa | |
| CN205642336U (en) | Body crack monitoring device collapses | |
| CN105401932A (en) | Ground system for measurement while drilling |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20220902 |