CN102720540B - Roof disaster monitoring system - Google Patents
Roof disaster monitoring system Download PDFInfo
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- CN102720540B CN102720540B CN201210222657.3A CN201210222657A CN102720540B CN 102720540 B CN102720540 B CN 102720540B CN 201210222657 A CN201210222657 A CN 201210222657A CN 102720540 B CN102720540 B CN 102720540B
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Abstract
The invention provides a roof disaster monitoring system, comprising a ground server (1), network exchangers (2), intrinsically safe monitoring substations (3) and a plurality of sensors (4), wherein the network exchangers (2) are connected with the ground server (1); the intrinsically safe monitoring substations (3) are connected with the network exchangers (2); the sensors (4) are connected with the intrinsically safe monitoring substations (3); and controllers (5) are installed on the sensors (4) respectively, and used for controlling the sampling period of each sensor (4) and processing collected data, so that the constant-value and fixed-time sampling is realized. The roof disaster monitoring system provided by the invention not only can ensure that a roof motion signal is captured in time for more timely pre-alarm about a roof disaster, but also causes no affection on the transmission speed and no additional memory loads even in the cases of a great number of the collected data.
Description
Technical field
The present invention relates to a kind of monitoring system, particularly a kind of coal mine roof plate disaster monitoring system.
Background technology
Roof accident is the Coal Mine Disasters threatening Safety of Coal Mine Production the most serious.Although the dynamics that China closes down the serious small coal mines of potential safety hazard strengthens year by year, roof timbering technology is also promoted day by day, monitoring technology is also in the application that constantly puts it over, but roof accident still frequently occurs, this increases in a large number, understands except the reason such as less to a large amount of ore deposits, coal seam, mine of western pressure feature dropping into exploitation except high strength stope, important reason lack exactly more comprehensively more accurately more timely monitored data instruct Safety of Coal Mine Production.
At present, in China, although mine pressure monitoring system or Roof Monitor system are widely applied in field, colliery, in fact to instructing Safety of Coal Mine Production to be also in status, edge, and fail to play a key effect.Wherein reason mainly concentrates on 2 points: one is that the data acquisition intervals time is oversize, in order to avoid the data volume gathered is too large, the sampling interval duration that monitoring system is arranged only can meet the polling period requirement of the shortest 30s, causes cannot capturing movement of roof variable signal in time, poor real; Two be being directly used in of providing of detection system evaluate top board disaster warning index very little, even only provide initial data, evaluate top board disaster by virgin stress or displacement data, and do not form warning index, cause evaluation conclusion unilateral, even misalignment.Such as, patent CN201236722Y discloses a kind of top board dynamic monitoring system, and monitoring system comprises fully-mechanized mining working surface hydraulic support monitoring subsystem, back and surrounding rock separation layer monitoring subsystem, the advanced bearing stress monitoring subsystem of coal petrography and roadway surrounding rock bolt support stress monitoring subsystem four subsystems.What this monitoring system adopted is still conventional data acquisition mode, and real-time property is poor; This monitoring system just expands horizontal monitoring range simultaneously, the accuracy to Roof Monitor is improved by more Monitor Sub-Station of Less, fail to develop depth, form the warning index accurately reflecting top board disaster situation more comprehensively, still poor to the early warning effect of top board disaster.
Summary of the invention
Technical problem to be solved by this invention is that existing monitoring system cannot catch top board variable signal more in time and accurately reflect top board disaster situation more comprehensively, thus early warning effect is poor, for this reason, the invention provides a kind of top board disaster monitoring system, image data is more timely, more can accurately catch movement of roof signal, and comprehensive warning index can be formed, early warning better effects if.
The technical solution used in the present invention is as follows:
A kind of top board disaster monitoring system, comprise ground-based server, the network switch, intrinsic safety type Monitor Sub-Station of Less and some sensors, the described network switch is connected with described ground-based server, described intrinsic safety type Monitor Sub-Station of Less is connected with the described network switch, described sensor is connected with described intrinsic safety type Monitor Sub-Station of Less, described sensor is provided with controller, in order to control the sampling period of sensor and the process to image data, realizes definite value timing sampling.Namely definite value timing sampling concrete meaning is first set less sampling period, cycle can be only a millisecond magnitude, then sample according to the setting sampling period, during each sampling by sampled value with preset threshold values and compare, if be greater than threshold values, then carry out record as new data, if be less than threshold values, then abandon not record, threshold values is determined according to the actual conditions of work plane.
In above-mentioned top board disaster monitoring system, described controller comprises power management section, single-chip microcomputer, storage area, bus control circuit and digital-to-analogue conversion part.
In above-mentioned top board disaster monitoring system, described ground-based server is provided with warning index analysis software.Working surface hydraulic support working resistance, ahead work face bearing pressure, roadway surrounding rock stress, roadway roof absciss layer and anchor shaft anchor cable stress and so on physical quantities real time data are after Sensor monitoring obtains, finally be transferred to ground-based server by Monitor Sub-Station of Less, the network switch, be stored in the database in ground-based server.The warning index analysis software be arranged in ground-based server automatically in time will recall monitored data from database, each warning index value is gone out according to the computational methods preset and calculated with mathematical model, evaluate top board disaster state according to warning index value, and provide different early warning signals.Warning index can comprehensive and accurate reflection top board disaster state, and warning index comprises working surface hydraulic support setting load, increases post lack of uniformity and work plane water component etc. before and after between resistance rate, safety valve unlatching rate, hydraulic pressure.
In above-mentioned top board disaster monitoring system, the described network switch has more than two, is connected to form ethernet ring network between the network switch, passes through Fiber connection between the described network switch.
In above-mentioned top board disaster monitoring system, the described network switch is connected with more than one intrinsic safety type Monitor Sub-Station of Less, described intrinsic safety type Monitor Sub-Station of Less is connected by transmission cable with between the described network switch.
In above-mentioned top board disaster monitoring system, described intrinsic safety type Monitor Sub-Station of Less is connected with more than one sensor, sensor is pressure sensor or displacement transducer.
Technique scheme of the present invention has the following advantages compared to existing technology:
1. top board disaster monitoring system provided by the invention, comprise ground-based server, the network switch, intrinsic safety type Monitor Sub-Station of Less and some sensors, sensor is provided with controller, achieve the sampling of timing definite value, therefore, can not only ensure to catch movement of roof signal in time, but also can not transmission speed be affected too much because of image data and increase storage burden.
2. top board disaster monitoring system provided by the invention, its ground-based server is provided with warning index analysis software, in time monitored data can be formed warning index, provide early warning instruction by comprehensive warning index data to top board disaster state, therefore early warning effect more accurately more comprehensively.
3. top board disaster monitoring system provided by the invention, ethernet ring network can be formed between its network switch connected, and use Fiber connection, therefore, it is possible to make the transmission speed of monitored data faster, can the real-time of guarantee top board disaster alarm of high degree.
4. top board disaster monitoring system provided by the invention, the network switch can connect more than one Monitor Sub-Station of Less, each Monitor Sub-Station of Less can also connect more than one sensor, therefore can monitor wider movement of roof state, reach the better early warning effect of top board disaster.
Accompanying drawing explanation
In order to make content of the present invention be more likely to be clearly understood, below according to a particular embodiment of the invention and by reference to the accompanying drawings, the present invention is further detailed explanation, wherein
Fig. 1 is the structural representation of top board disaster monitoring system of the present invention;
Fig. 2 is the structural representation of top board disaster monitoring system middle controller of the present invention.
In figure, Reference numeral is expressed as: 1-ground-based server, the 2-network switch, 3-intrinsic safety type Monitor Sub-Station of Less, 4-sensor, 5-controller, 6-power management section, 7-single-chip microcomputer, 8-storage area, 9-bus control circuit, 10-digital-to-analogue conversion part.
Detailed description of the invention
For making the object, technical solutions and advantages of the present invention clearly, below in conjunction with accompanying drawing, embodiment of the present invention is described further in detail.
As shown in Figure 1, described top board disaster monitoring system, comprise ground-based server 1, the network switch 2, intrinsic safety type Monitor Sub-Station of Less 3 and some sensors 4, the described network switch 2 is connected with described ground-based server 1, described intrinsic safety type Monitor Sub-Station of Less 3 is connected with the described network switch 2, described sensor 4 is connected with described intrinsic safety type Monitor Sub-Station of Less 3, and described sensor 4 is provided with controller 5.
As shown in Figure 2, described controller 5 comprises power management section 6, single-chip microcomputer 7, storage area 8, bus control circuit 9 and digital-to-analogue conversion part 10.
In the present embodiment, described ground-based server 1 is provided with warning index analysis software.
In the present embodiment, the described network switch 2 has two, is connected to form ethernet ring network between the network switch 2, passes through Fiber connection between the described network switch 2.
In the present embodiment, the described network switch 2 is connected with two intrinsic safety type Monitor Sub-Station of Less 3, is connected by transmission cable between described intrinsic safety type Monitor Sub-Station of Less 3 with the described network switch 2.
In the present embodiment, described intrinsic safety type Monitor Sub-Station of Less 3 is connected with two sensors 4, sensor 4 is pressure sensor or displacement transducer.
In other embodiments, the described network switch 2 be connected in described ethernet ring network can have more than two.
In other embodiments, the described intrinsic safety type Monitor Sub-Station of Less be connected on the described network switch 2 can have two or more.
In other embodiments, the described sensor 4 be connected in described intrinsic safety type Monitor Sub-Station of Less 3 can have two or more.
Obviously, above-described embodiment is only for clearly example being described, and the restriction not to embodiment.For those of ordinary skill in the field, can also make other changes in different forms on the basis of the above description.Here exhaustive without the need to also giving all embodiments.And thus the apparent change of extending out or variation be still among the protection domain of the invention.
Claims (8)
1. a top board disaster monitoring system, comprise ground-based server (1), the network switch (2), intrinsic safety type Monitor Sub-Station of Less (3) and some sensors (4), the described network switch (2) is connected with described ground-based server (1), described intrinsic safety type Monitor Sub-Station of Less (3) is connected with the described network switch (2), described sensor (4) is connected with described intrinsic safety type Monitor Sub-Station of Less (3), it is characterized in that: described sensor (4) is provided with controller (5), in order to control the sampling period of sensor (4) and the process to image data, described sensor (4) and controller (5) are operationally, first set the sampling period of a millisecond magnitude, then sample according to the setting sampling period, during each sampling by sampled value with preset threshold value and compare, if be greater than threshold value, then carry out record as new data, if be less than threshold value, then abandon not record, threshold value is determined according to the actual conditions of work plane.
2. top board disaster monitoring system according to claim 1, is characterized in that: described controller (5) comprises power management section (6), single-chip microcomputer (7), storage area (8), bus control circuit (9) and digital-to-analogue conversion part (10).
3. top board disaster monitoring system according to claim 1 and 2, is characterized in that: the described network switch (2) has more than two, and the network switch is connected to form ethernet ring network between (2).
4. top board disaster monitoring system according to claim 3, is characterized in that: the described network switch passes through Fiber connection between (2).
5. top board disaster monitoring system according to claim 3, is characterized in that: the described network switch (2) is connected with more than one intrinsic safety type Monitor Sub-Station of Less (3).
6. top board disaster monitoring system according to claim 3, is characterized in that: described intrinsic safety type Monitor Sub-Station of Less (3) is connected by transmission cable with between the described network switch (2).
7. top board disaster monitoring system according to claim 3, is characterized in that: described intrinsic safety type Monitor Sub-Station of Less (3) is connected with more than one sensor (4).
8. top board disaster monitoring system according to claim 7, is characterized in that: sensor (4) is pressure sensor or displacement transducer.
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| CN201210222657.3A CN102720540B (en) | 2012-07-02 | 2012-07-02 | Roof disaster monitoring system |
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| CN201210222657.3A CN102720540B (en) | 2012-07-02 | 2012-07-02 | Roof disaster monitoring system |
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| CN102720540B true CN102720540B (en) | 2015-02-18 |
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Families Citing this family (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103790628B (en) * | 2013-05-30 | 2016-07-27 | 天地科技股份有限公司 | A kind of roof of coal face disaster alarm evaluation methodology |
| CN104113392B (en) * | 2014-07-17 | 2019-06-04 | 天地（常州）自动化股份有限公司 | A kind of data transmission method and device of Monitoring System of Plank Pressure |
| CN104481590B (en) * | 2014-11-18 | 2017-03-08 | 煤炭科学技术研究院有限公司 | A kind of colliery broadwall roof weighting hydraulic support resistive feature method for early warning |
| CN110454229A (en) * | 2019-07-17 | 2019-11-15 | 天地科技股份有限公司 | A kind of mining Microseismic monitoring system |
| CN111577392B (en) * | 2020-05-13 | 2022-01-11 | 中国矿业大学 | Multi-parameter comprehensive intelligent monitoring method for stoping roadway |
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