LU102524A1 - Fault monitoring system and method for mine shaft - Google Patents
Fault monitoring system and method for mine shaft Download PDFInfo
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- LU102524A1 LU102524A1 LU102524A LU102524A LU102524A1 LU 102524 A1 LU102524 A1 LU 102524A1 LU 102524 A LU102524 A LU 102524A LU 102524 A LU102524 A LU 102524A LU 102524 A1 LU102524 A1 LU 102524A1
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- E—FIXED CONSTRUCTIONS
- E21—EARTH 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
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N7/00—Television systems
- H04N7/18—Closed-circuit television [CCTV] systems, i.e. systems in which the video signal is not broadcast
- H04N7/181—Closed-circuit television [CCTV] systems, i.e. systems in which the video signal is not broadcast for receiving images from a plurality of remote sources
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- E—FIXED CONSTRUCTIONS
- E21—EARTH DRILLING; MINING
- E21D—SHAFTS; TUNNELS; GALLERIES; LARGE UNDERGROUND CHAMBERS
- E21D7/00—Shaft equipment, e.g. timbering within the shaft
- E21D7/005—Determination of shaft lining deformation
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- E—FIXED CONSTRUCTIONS
- E21—EARTH 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
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01D—MEASURING NOT SPECIALLY ADAPTED FOR A SPECIFIC VARIABLE; ARRANGEMENTS FOR MEASURING TWO OR MORE VARIABLES NOT COVERED IN A SINGLE OTHER SUBCLASS; TARIFF METERING APPARATUS; MEASURING OR TESTING NOT OTHERWISE PROVIDED FOR
- G01D21/00—Measuring or testing not otherwise provided for
- G01D21/02—Measuring two or more variables by means not covered by a single other subclass
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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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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L67/00—Network arrangements or protocols for supporting network services or applications
- H04L67/01—Protocols
- H04L67/12—Protocols specially adapted for proprietary or special-purpose networking environments, e.g. medical networks, sensor networks, networks in vehicles or remote metering networks
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N23/00—Cameras or camera modules comprising electronic image sensors; Control thereof
- H04N23/50—Constructional details
- H04N23/54—Mounting of pick-up tubes, electronic image sensors, deviation or focusing coils
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N23/00—Cameras or camera modules comprising electronic image sensors; Control thereof
- H04N23/57—Mechanical or electrical details of cameras or camera modules specially adapted for being embedded in other devices
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W4/00—Services specially adapted for wireless communication networks; Facilities therefor
- H04W4/30—Services specially adapted for particular environments, situations or purposes
- H04W4/38—Services specially adapted for particular environments, situations or purposes for collecting sensor information
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W4/00—Services specially adapted for wireless communication networks; Facilities therefor
- H04W4/80—Services using short range communication, e.g. near-field communication [NFC], radio-frequency identification [RFID] or low energy communication
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W4/00—Services specially adapted for wireless communication networks; Facilities therefor
- H04W4/90—Services for handling of emergency or hazardous situations, e.g. earthquake and tsunami warning systems [ETWS]
Abstract
The present invention discloses a fault monitoring system for a mine shaft, comprising an acquisition end, a transmission end, and a ground monitoring end. The acquisition end is mainly configured to acquire required data in the mine shaft; the transmission end is designed based on ZigBee, and is a network structure for transmitting data; the ground monitoring end is an intelligent control station for analyzing, sorting and judging data, can collect various performance and environment data of the mine shaft, and achieves automatic analysis, monitoring, storage, alarming and fault identification; and the unique trend comparison mode can monitor and predict hidden dangers at the initial stage, automatically acquire relevant image data after abnormal conditions occur, and give engineers sufficient data for ground analysis, thereby improving the maintenance quantities and safety.
Description
FAULT MONITORING SYSTEM AND METHOD FOR MINE SHAFT Field of the Invention The present invention relates to the technical field of transmission systems, and specilically relates to a fault monitoring system and method for a mine shaft.
Background of the Invention Existing mines, especially nonmetallic mines, mostly adopt a shaft mining mode, with shaft depths ranging from 500 to 1000 m.
A freezing method is usually used in the shaft construction process, and the vertical additional force of a shaft is not considered in the early shaft design, so the shaft in long-term service is most prone to shear failure.
In order to ensure the safety of the mine during operation, the stability of the shaft as the throat of the nonmetallic mine needs to be mastered at all times.
A monitoring system is horizontally arranged in the shaft in most cases to monitor information such as deformation and stress of shaft wall concrete. and different monitoring points at different levels are connected with a monitoring unit on the ground through cables.
The particularity of the shaft environment limits the replacement and maintenance of monitoring equipment at the initial stage of shaft building.
The maintenance period of the shaft monitoring system is relatively long, and the mine production is stopped from one to three months.
Taking a coal mine with an annual output of 6 million tons as an example, the maintenance shutdown leads to a loss of 0.5 to 1.5 million tons of coal mine output.
Usually. the shalt in a nonmetallic mine area includes a main shaft, an auxiliary shaft and an air shalt.
Especially, the main shaft is used as a passage for coal mine lifting.
During the high-speed lifting process of a mine car. ore blocks in the mine car fall randomly, causing frequent breaking of wired transmission cables.
At present, many shafts are also in watery environments, The humid shaft environment shortens the service lives of joints between the wired transmission cables and the monitoring equipment, increases the possibility of short circuits at the joints, further highlights the shortcomings of the wired transmission mode of the monitoring system, and greatly shortens the service life of the monitoring system.
Although the shaft has a good ventilation environment, it still belongs to a safety range of the mine area where LU102524 open flames and wired power are prohibited and explosion-proof safety requirements of the mine should be met. . ZigBee technology is a modern network technology. and has the characteristics of $ short distance, low power consumption. low data rate and low cost.
The ZigBee technology mainly works in a frequency band of 2.4 ghz, with a transmission rate of to 250 kbps and a transmission distance of 10-100 m.
As a new wireless communication technology. the ZigBee technology has fast transmission specd, is low in cost and simple to operate, has a broad market prospect in the current market. and 10 also has become one of the hot topics in wireless technology studies.
At present. the ZigBee technology has been widely used in the fields of wireless sensor networks. automatic control and remote control. and is very suitable for mine shaft monitoring.
Chinese invention patent CN201110218602.0 discloses a coal mine underground fire monitoring system based on a wireless sensor network, including a monitoring host, a IS communication master station and a wireless sensor network.
The wireless sensor network communicates with the monitoring host through the communication master station. and the wireless sensor network is a ZigBee wireless ad hoc network, The wireless sensor includes a wireless carbon monoxide sensor, a wircless wind pressure sensor and a wireless temperature sensor, which can timely and accurately monitor coal mine underground fire. effectively contro! the energy consumption of wireless sensor network nodes. and prolong the service life of the wireless sensor network.
However, the monitoring system is mainly used for fire monitoring.
In practical application, especially in a mine shaft, there are many abnormalities that affect actual production, such as inclination. collapse. accidental drop and dust diffusion.
When the abnormalities occur, maintenance persons are often required to go down the mine to check in the case of no accurate information. which not only wastes time but also has certain risks.
In order to get through the last small step between the monitoring sensors and remote transmission, a safe and effective wireless transmission system is urgently needed to replace the traditional wired transmission mode, meet the special environmental requirements of the mine shaft and prolong the service life of the monitoring system.
Summary of the Invention
The object of the present invention is to overcome the above shortcomings of the prior LU102524 art and provide a fault monitoring system and method for a mine shaft, which can realize all-round monitoring of the mine shaft, transmit information to a monitoring station by means of a wireless system, realize functions of self-monitoring, self-alarm, intelligent fault analysis and the like. and have the advantages of low energy consumption and low cost.
In order to achieve the above object, the present invention provides the following technical solutions: A fault monitoring system for a mine shaft includes an acquisition end, a transmission end and a ground monitoring end, the acquisition end 1s mainly configured to acquire required data in the mine shaft, the transmission end is a network structure for transmitting data, and the ground monitoring end is a control station for analyzing, sorting and judging data.
The acquisition end includes a data acquisition device and an image acquisition device which are prearranged in the mine shaft in a pre-embedded and preset manner: the data acquisition device is configured 10 provide quantized data and includes one or more forms of sensors for acquiring data such as temperature, humidity, gas concentration, pressure, and load in the mine, and the types of these sensors can be flexibly selected according to the type of a mine; and the image acquisition device is configured to provide image data, and includes one or more forms of cameras, such as one or more of a visible light camera, an infrared camera and a night vision camera, for providing image data, so as to facilitate understanding of possible faults before maintenance persons go down the mine and shorten the maintenance cycle.
The transmission end uses a ZigBee transmission system, which is a wireless network for low-speed and short-distance transmission, and has the main advantages of low power consumption, low cost, low speed. short distance. short delay, high capacity, and high safety; the transmission end includes a three-layer framework: the first-layer framework includes data collectors arranged at the acquisition end. and the data collectors include a data collector A for collecting quantized data, and a data collector B for collecting and buffering image data; because the data volume of the quantized data is small. the quantized data is designed for real-time transmission and as a main monitoring object, while the data volume of the image data is large, and the image data mainly plays a role of troubleshooting after a fault, so the data collector B of the image data has two data modes, one is real-time transmission. and the other is internal storage and periodic coverage function, which can save the energy consumed by LU102524 transmission. avoid congestion of the transmission network and ensure smooth transmission of the quantized data: the second-layer framework is a networking apparatus, the present invention uses a network with a mesh topology structure, the networking apparatus includes a plurality of ZigBee routers and a ZigBee coordinator, the ZigBee routers can directly communicate with the data collectors within a range. and when one of the routers fails. the whole network path is not affected, so the network can cope with the extreme environment under the mine and ensures the transmission efficiency: and the third-layer framework is an upper computer for receiving and buffering data. and the upper computer is configured to receive and buffer data and arranged on the ground, and is the last station of the ZigBee transmission system. ‘The upper computer at the transmission end transmits data to the ground monitoring end to realize overall monitoring.
A data transmission mode can be selected for the transmission process according to needs.
If the ground monitoring station is near the mine, the ZigBee transmission mode can continue to be used: Wiki, wired optical cables and GPRS technologies can be used for the long distance: and even ultra-remote monitoring can be realized by using the Internet.
The ground monitoring end is an intelligent monitoring system, which can realize the functions of self-monitoring, self-elimination, self-alarm, and self-delcting of redundant data during normal operation. and mainly includes a data module, a monitoring module and an alarm module.
The data module includes a data analysis unit. an image reconstruction unit and a data storage unit, the data analysis unit performs classification, trend analysis and periodic value analysis on the quantized data. the image reconstruction unit is configured for image reconstruction on compressed image data. and the data storage unit is configured to store historical data and real-time data; The monitoring module includes a standard data unit. a data comparison unit and a trend analysis unit, the standard data unit is configured to store and adjust a critical threshold defined by a user. the data comparison unit is mainly configured to compare the processed quantized data with the critical threshold. and the trend analysis unit is mainly configured to intelligently analyze the periodic fluctuation of the quantized data and find hidden abnormalities; The alarm module includes an alarm unit for alarming in an abnormal state, an image changing unit and an emergency handling unit, the image changing unit is configured | LU102524 to call the historical image data and change the transmission mode of the image data. and the emergency handling unit is configured to perform corresponding emergency handling according to the abnormality level.
5 Preferably, the ground monitoring end further includes an analysis module: the analysis module includes a time horizontal analysis unit, a time longitudinal analysis unit, and a comprehensive analysis unit: the time horizontal analysis unit is configured to comprehensively analyze each quantized data at a certain time point. the time longitudinal analysis unit is configured to analyze a trend change on a time line for certain quantized data, and the comprehensive analysis unit is configured to comprehensively measure the results of the time horizontal analysis unit and the time longitudinal analysis unit and give a fault diagnosis.
Preferably, the data collector A and the data collector B each include an explosion-proof enclosure, a wireless communication module connected to the data acquisition device, a ZigBee wireless module for transmission networking, a power management module for accurate power supply, and a battery. The detachable rechargeable battery supplies power to the wireless communication module, the ZigBee wireless module, the power management module, the embedded sensors and other modules respectively: the power management module controls the power supply time and power-off time of the detachable rechargeable battery; the wireless transmission system is connected with the sensors through the wireless communication module; the wireless communication module is connected with the ZigBee wireless module; the wireless module realizes networking of a plurality of sensors at different levels; the data collector B further includes a memory card for storing data, and the memory card is configured to buffer the image data.
More preferably, the wircless communication module is a 232/485 wireless communication module, which outputs 2.4 GHz communication band signals. The 232/485 wireless communication module is applicable to 232 or 485 signals output by the existing sensors, and converts the 232 or 485 signals into wireless 2,4 GHz communication band signals, which can scamlessly adapt to different types of sensors embedded in the shaft, and can make full use of the existing conditions for old mines. A fault monitoring method for a mine shaft includes the following follow steps: S1: presetting X days as a cycle, storing image data in the memory card of the data collector B and deleting the image data periodically. wherein the cycle can be set according to requirements, such as 7 days, 10 days, or 15 days; LU102524 transmitting quantized data to a data sorting unit for sorting. performing average value analysis, trend analysis and cycle analysis, and storing the quantized data in the data storage unit: S2: transmitting the sorted quantized data to the monitoring module. comparing the quantized data with a critical threshold by the data comparison unit, and performing $3 if no abnormality occurs, or performing S4 if an abnormality occurs: S3: at a preset time point of a predetermined cycle, comparing the data trend in the cycle with the critical threshold. and storing the cycle analysis data in the data storage unit if no abnormality occurs: or performing S4 if an abnormality occurs: and S4: starting the alarm module. and giving a programmatic alarm by the alarm unit; according to the degree of abnormality, the emergency handling unit performing corresponding abnormality handling according to a preset emergency plan. for example. suspending production, turning off a power supply. ete.
an image transfer unit sending an instruction to the data collector B to transmit the image data from the previous cycle to the current cycle to the image reconstruction module for workers to call after image reconstruction: and changing the image data from memory card storage to real-time transmission to the data reconstruction unit for real-time display.
Preferably, the method further includes the following step: S5: starting the analysis module. performing comprehensive analysis by using the time horizontal analysis unit, the time longitudinal analysis unit and the comprehensive analysis unit. and intelligently giving fault analysis and suggestions.
Preferably, the data storage unit uses a periodic deletion mode to save space, specifically: in the n-th cycle. the data on and before the (n-2)th cycle is deleted. but average data of the whole cycle is retained, which is for the convenience of data retention and view later.
Compared with the prior art. the beneficial effects of the present invention are: (1) The design of the data acquisition device is reasonable: first, the explosion-proof enclosure can meet the explosion-proof grade required by coal mine safety production, has a compact structure and a small size for convenient construction and fixation, and can effectively reduce the damage of falling coal to the monitoring system and improve the service life; second, the 232/485 wireless communication module is | LU102524 applicable to 232 or 485 signals output by the existing sensors, can seamlessly adapt to different types of sensors embedded in the shaft, and can be upgraded on the basis of the existing monitoring; the power management module is combined with the battery for power supply to realize efficient utilization of power, and is replaced once every 1-2 years, thus greatly reducing the manpower and material resources for maintenance of the existing shaft monitoring system; (2) The wireless transmission system uses a ZigBee transmission protocol and has the functions of automatic network organization, automatic routing, etc., can reduce the influence of the shaft environment on wireless signals as much as possible, and has low cost, energy conservation and high transmission efficiency; (3) The ground monitoring end achieves fully intelligent monitoring, automatic analysis, monitoring, storage, alarming and fault identification; the unique trend comparison mode can monitor and predict hidden dangers at the initial stage, automatically acquire relevant image data after abnormal conditions oceur, and give engineers sufficient data for ground analysis, thereby improving the maintenance quantities and safety; and (4) Two image and data acquisition modes are designed to avoid the congestion and additional energy consumption of the transmission system due to excessive images and data, with the characteristics of improving data transmission efficiency and saving energy.
Brief Description of the Drawings FIG. 1 is a schematic diagram of a monitoring system according to an embodiment of the present invention; FIG. 2 is a flowchart of a monitoring method according to an embodiment of the present invention; FIG. 3 is a top view of a main structure of a data collector according to an embodiment of the present invention: FIG. 4 is a side view of the main structure of the data collector according to an embodiment of the present invention: FIG. 5 is a three-dimensional structure diagram of the main structure of the data collector according to an embodiment of the present invention; In the figures: 1 - explosion-proof enclosure, 2 - wireless communication module, 3 -
power management module, 4 - power switch, 5 - battery contact copper sheet, 6 - LU102524 battery compartment buckle, 7 - battery compartment, 8 - ZigBee wireless module, 9 - battery.
Detailed Description of Embodiments A clear and complete description will be made to the technical solutions in the embodiments of the present invention below with reference to the accompanying drawings in the embodiments of the present invention.
Apparently, the embodiments described are only part of the embodiments of the present invention, not all of them.
All other embodiments obtained by a person of ordinary skill in the art based on the embodiments of the present invention without creative efforts shall fall within the protection scope of the present invention.
Referring to FIG. 1, a fault monitoring system for a mine shaft includes an acquisition end, a transmission end and a ground monitoring end, the acquisition end is mainly i5 configured to acquire required data on site, the transmission end is a network structure for transmitting data, and the ground monitoring end is a control station for analyzing, sorting and judging data.
Acquisition end The acquisition end is mainly configured to acquire two forms of data, one is quantized data of digits, such as temperature and pressure, and the other is image data, so the whole acquisition end includes a data acquisition device and an image acquisition device which are arranged in the mine shaft in a pre-embedded and preset manner; the data acquisition device is configured to provide different types of quantized data, and includes a pressure sensor for measuring deformation and stress of shaft wall concrete, a temperature sensor, a methane concentration sensor, an oxygen concentration sensor, and a dust concentration sensor; the image acquisition device is configured to provide image data, and includes a visible light camera and a night vision camera, for providing image data, so as to facilitate understanding of possible faults before maintenance persons go down the mine and shorten the maintenance cycle.
Transmission end The transmission end uses a ZigBee transmission system. which is a wireless network for low-speed and short-distance transmission, and has the main advantages of low power consumption, low cost, low speed, short distance, short delay. high capacity and high safety.
The transmission end includes a three-layer framework: LU102524 The first-layer framework includes data collectors arranged at the acquisition end, and the data collectors include a data collector A for collecting quantized data, and a data collector B for collecting and buffering image data.
Because the data volume of the quantized data is small, the quantized data is designed for real-time transmission and as a main monitoring object, while the data volume of the image data is large, and the image data mainly plays a role of troubleshooting after a fault, so the data collector B of the image data has additional functions of storage and periodic deletion, which can save the energy consumed by transmission, avoid congestion of the transmission network and ensure smooth transmission of the quantized data.
As shown in FIGS. 3-5, the data collector A and the data collector B each include an explosion-proof enclosure 1, a wireless communication module 2 connected to the data acquisition device, a ZigBee wireless module 8 for transmission networking, a power management module 3 for accurate power supply, and a battery 9. The wireless communication module 2 is a 232 wireless communication module, which outputs 2.4 GHz communication band signals.
The 232 wireless communication module 1s applicable to 232 signals output by the existing sensors, and converts the 232 signals into wireless 2.4 GHz communication band signals, which can seamlessly adapt to different types of sensors embedded in the shaft.
The detachable rechargeable battery supplies power to the wireless communication module, the ZigBee wireless module, the power management module, the embedded sensors and other modules respectively.
The power management module controls the power supply time and power-off time of the detachable rechargeable battery.
The wireless transmission system is connected with the sensors through the wireless communication module.
The wireless communication module is connected with the ZigBee wireless module, and the ZigBee wireless module realizes networking of a plurality of sensors at different levels.
In addition, the explosion-proof enclosure is arranged in a compact square shape, the battery 9 is a rechargeable AA battery, and a battery compartment 7, a battery contact copper sheet 5 and a battery compartment buckle 6 are also arranged in the enclosure.
The specific working mode of the data collector A is: according to the requirements of a monitoring task, when the shaft needs to be monitored, the ground monitoring end distributes power control signals and signal monitoring transmission demands to different ZigBee wireless modules 8 in the explosion-proof enclosure 1 of the data collector A through a coordinator, the ZigBee wireless modules 8 where the sensors LU102524 are located transmit the power control signals to the power management module 3, the power management module 3 supplies power to the wireless communication module 2 and the pre-embedded sensors, the ground monitoring end sends a sensor S information acquisition instruction, the pre-embedded sensors feed information back, the information is converted into wireless communication information by the wireless communication module 2, the ZigBee wireless modules 8 where the sensors are located summarize the information fed back by the sensors to the coordinator in the wireless transportation network, and the coordinator transmits the information to an 10 upper computer, and then the upper computer transmits the information to the ground monitoring end.
The data collector B further includes a memory card for storing data, the memory card is configured to buffer image data, and the data collector B has two working modes, one is real-time monitoring and transmission, which is the same as that of the data collector A; and the other is memory card buffering. The specific working mode is as follows: the ground monitoring end distributes power control signals and signal monitoring transmission demands to different ZigBee wireless modules 8 of the data collector B through a coordinator, the ZigBee wireless modules 8 where the sensors are located transmit the power control signals to the power management module 3, the power management module 3 supplies power to the wireless communication module 2 and the image sensor, and the information acquired by the image sensor is directly stored in the memory card and periodically covers historical data.
The second-layer framework is a networking apparatus, the present invention uses a network with a mesh topology structure, the networking apparatus includes four ZigBee routers and a ZigBee coordinator for constructing a wireless data transmission network, the ZigBee routers can directly communicate with the data collectors within a range, and when one of the routers fails, the whole network path is not affected, so the network can cope with the extreme environment under the mine and ensures the transmission etficiency.
The third-layer framework is an upper computer for receiving and buffering data, and the upper computer is configured to receive and buffer data and arranged on the ground, and is the last station of the ZigBee transmission system.
Ground monitoring end The upper computer of the transmission end transmits data to the ground monitoring it end through a GPRS to realize overall monitoring.
The ground monitoring end is an | LU102524 intelligent monitoring system. which can realize the functions of self-monitoring, self-chimination. self-alarm, and sclf-deleting of redundant data during normal operation. and mainly includes a data module, a monitoring module, an alarm module, and an analysis module.
The data module includes a data analysis unit, an image reconstruction unit and a data storage unit, the data analysis unit performs classification. trend analysis and periodic value analysis on the quantized data, the image reconstruction unit is configured for image reconstruction on compressed image data, and the data storage unit is configured to store historical data and real-time data; The monitoring module includes a standard data unit, a data comparison unit and a trend analysis unit, the standard data unit is configured to store and adjust a critical threshold defined by a user, the data comparison unit is mainly configured to compare the processed quantized data with the critical threshold, and the trend analysis unit is mainly configured to intelligently analyze the periodic fluctuation of the quantized data and find hidden abnormalities: The alarm module includes an alarm unit for alarming in an abnormal state, an image changing unit and an emergency handling unit, the image changing unit is configured to call the historical image data and change the transmission mode of the image data, and the emergency handling unit is configured to perform corresponding emergency handling according to the abnormality level.
The analysis module includes a time horizontal analysis unit, a time longitudinal analysis unit, and a comprehensive analysis unit; the time horizontal analysis unit is configured to comprehensively analyze each quantized data at a certain time point, the time longitudinal analysis unit is configured to analyze a trend change on a time line for certain quantized data, and the comprehensive analysis unit is configured to comprehensively measure the results of the time horizontal analysis unit and the time longitudinal analysis unit and give a fault diagnosis.
Monitoring method Referring to FIG. 2, a fault monitoring method for a mine shaft includes the following steps.
SI: X days are preset as a cycle, and image data is stored in the memory card of the data collector B and deleted periodically.
The cycle can be set according to requirements, such as 7 days, 10 days, or 15 days;
Quantized data is transmitted to a data sorting unit for sorting, average value analysis. LU102524 trend analysis and cycle analysis are performed, and the quantized data is stored in the data storage unit: $2: the sorted quantized data is transmitted to the monitoring module, and compared with a critical standard by the data comparison unit; if no abnormality occurs, S3 is performed; or if an abnormality occurs, S4 is performed; S3: at a preset time point of a predetermined cycle, the data trend in the cycle is compared with the critical standard. and if no abnormality occurs, the cycle analysis data is stored in the data storage unit; or if an abnormality occurs. S4 is performed: S4: the alarm module is started. and a programmatic alarm is given by the alarm unit; According 10 the degree of abnormality. the emergency handling unit performs corresponding abnormality handling according to a preset emergency plan. for example, suspends production. turns off a power supply. etc.
An image transfer unit sends an instruction to the data collector B to transmit the image data from the previous cycle to the current cycle to the image reconstruction module for workers to call after image reconstruction: The image data is changed from memory card storage to real-time transmission to the data reconstruction unit for real-time display; S5: the analysis module is started, comprehensive analysis is performed by using the time horizontal analysis unit, the time longitudinal analysis unit and the comprehensive analysis unit, and fault suggestions are intelligently given: In particular, the data storage unit uses a periodic deletion mode to save space. specifically: in the n-th cycle. the data on and before the (n-2)th cycle is deleted, but average data of the whole cycle is retained. which is for the convenience of data retention and view later.
Finally, it should be noted that the above embodiments are only used for explaining, but not limiting. the technical solutions of the present invention; although the present invention is described in detail with reference to the foregoing embodiments, those of ordinary skill in the art should understood that the technical solutions described in the foregoing embodiments may be modified, or some of the technical features may be equivalently substituted: and such modifications or substitutions do not make the essence of the corresponding technical solutions depart from the spirit and scope of the technical solutions of the present invention.
Claims (7)
- Claims LU102524 I. A fault monitoring system for a mine shaft, comprising an acquisition end, a transmission end, and a ground monitoring end: wherein the acquisition end comprises a data acquisition device and an image acquisition device, the data acquisition device is configured to provide quantized data and comprises one or more forms of sensors, and the image acquisition device is configured to provide image data and comprises one or more forms of cameras; the transmission end comprises a three-layer framework, the first-layer framework comprises data collectors arranged at the acquisition end. and the data collectors comprise a data collector A for collecting quantized data, and a data collector B for collecting image data and with two data transmission modes: the second-layer framework is a networking apparatus, comprising a plurality of ZigBec routers and a ZigBee coordinator, for constructing a wireless data transmission network; the third-layer framework is an upper computer for receiving and buffering data: the ground monitoring end comprises a data module, a monitoring module, and an alarm module: the data module comprises a data analysis unit, an image reconstruction unit and a data storage unit, the data analysis unit performs classification, trend analysis and periodic value analysis on the quantized data, the image reconstruction unit is configured for image reconstruction on compressed image data, and the data storage unit is configured to store historical data and real-time data; the monitoring module comprises a standard data unit, a data comparison unit and a trend analysis unit, the standard data unit is configured to store and adjust a critical threshold defined by a user, the data comparison unit is mainly configured to compare the processed quantized data with the critical threshold, and the trend analysis unit is mainly configured to intelligently analyze the periodic fluctuation of the quantized data and find hidden abnormalities; and the alarm module comprises an alarm unit for alarming in an abnormal state, an image changing unit and an emergency handling unit, the image changing unit is configured to call the historical image data and change the transmission mode of the image data. and the emergency handling unit is configured to perform corresponding emergency handling according to the abnormality level.2. The fault monitoring system for the mine shaft according to claim 1, wherein the data collector À and the data collector D each comprise an explosionepront encore, LU102524 à wivedess communication module connected to the date aeguisition device, à Jiglee wireless module für tranemiasion networking, and à power management module amd a battery for accurate power suppl and the date collector M further comprises a 3 mement cand for storing data,3. The fault monitoring system fe the mine shaft according to clan 2, wherein the seiveleas communtvation module Is à 233485 wireless vommuniogtion module, which ouipuis T4 GHz conememication band sigrutis, 4, The Sylt monitoring system for the mine shaft according 10 claim 1, when the Wo ground monitoring end further remprises an analysis mache: the analyais modele ecangrises a firme horizontal analysis unit, à time longitalinel analysis tait, and à comprehensive analvels unit the time horizontal analysis nait is cenfiguend to comprehensively analyze each quantired date at à certain time point, the time fongitucdinal analysis anit is configured to amalyre à trend change on à Game me for iS certain quantired date, and the comprehensive analysis nn 5 configured to comprehensively measure the results of the time horbrontal analysis unit and the Go ienpitudinel analysis unit and give a thal Hamon, À fuit monitoring method using the system according te any one of claims à in 4, comprisine the following steps: 35 Si: setting X days as a ovele: storine rage data in the memory cand of the data collector D, and deleting the mage data pertadicatir: transraiitine quantised data te à dete sorting walt for sorting, performing average value anvdveis, trend analysis and ovcle snalyaly, wad storing the goantized data in the dela sterage muy SE: trananttttiog the sorted quaniiken data to the monitoring module, comparing the quantires date with à eritigal threshold by the date comparison wilt, and performing S31 no atmormatity accurs, ar gering SA Ha abnormality poss NI: at à proset time point of à predetermined orcle, comparing the data trend in the 36 evel with the oritical threshoid, and storing the cycle analysis data in the date stomge unit IF no ahnormatits occure: or performing $4 an abnormality neous Sd: starting the alarm modulo, and glving à programmusic aların by the alanın tait aveonding to the degree of abrormelite, the emergoner handling wit performing corresponding abnormality handling)an image transfer unit sending an instruction to the data collector B to transmit the 0102526 image data from the previous cycle to the current cycle to the image reconstruction module for workers to call after image reconstruction; and changing the image data from memory card storage to real-time transmission to the data reconstruction unit for real-time display.6. The fault monitoring method for a mine shaft according to claim 5, further comprising the following step: S5: starting the analysis module, performing comprehensive analysis by using the time horizontal analysis unit, the time longitudinal analysis unit and the comprehensive analysis unit, and intelligently giving fault analysis and suggestions.7, The fault monitoring method for the mine shaft according to claim 5, wherein the data storage unit uses a periodic deletion mode to save space, specifically: in the n-th cycle, the data on and before the (n-2)th cycle is deleted, but average data of the whole cycle is retained, which is for the convenience of data retention and view later.
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