CN103969691A - Mine working face detection system and method - Google Patents
Mine working face detection system and method Download PDFInfo
- Publication number
- CN103969691A CN103969691A CN201410181822.4A CN201410181822A CN103969691A CN 103969691 A CN103969691 A CN 103969691A CN 201410181822 A CN201410181822 A CN 201410181822A CN 103969691 A CN103969691 A CN 103969691A
- Authority
- CN
- China
- Prior art keywords
- signal
- working face
- mine working
- field intensity
- transmitter
- 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
Landscapes
- Geophysics And Detection Of Objects (AREA)
Abstract
The invention discloses a mine working face detection system and method. The system comprises a transmitter and a receiver. The transmitter is used for transmitting first signals of which the amplitude is not zero to a mine working face in a first time period T1 and transmitting second signals of which the amplitude is zero to the mine working face in a second time period T2. The receiver is used for receiving first transmission signals obtained by transmitting the first signals and interference signals through the mine working face under the signal control of a controller, and receiving second transmission signals obtained by transmitting the interference signals through the mine working face. Due to the fact that the amplitude of the second signals is zero, the second transmission signals are transmittance signals of the interference signals, the difference between a total field intensity value H of the first transmission signals and a field intensity value H0 of the second transmission signals is obtained, and field intensity increments H1 of receiving points are obtained. The receiver respectively receives the first transmission signals and the second transmission signals, interference of the interference signals is eliminated, eventually the field intensity increments are obtained, and detection of the mine working face is more accurate.
Description
Technical field
The embodiment of the present invention relates to geological exploration technical field, relates in particular to a kind of mine working face detection system and method.
Background technology
In stope of coal mines process, if the geologic anomaly situations such as mine working face does not plan a successor, squeeze district, karst collapse col umn, rich pool, can affect back production progress and the safety in production in colliery, conventionally before back production, mine working face is cheated to detection, to confirm whether there are the situations such as geologic anomaly in mine working face.
At present, the main Radio Penetration technology that adopts, in mine working face two tunnels, lay respectively transmitter and receiver, transmitter is launched same electrical magnetic wave signal continuously in one side tunnel time period at mine working face, receiver receives electromagnetic wave signal in mine working face opposite side tunnel in the corresponding time period, according to the field intensity value of the electromagnetic wave signal receiving, determine in mine working face, whether there is geologic anomaly situation, if the field intensity value of the electromagnetic wave signal receiving is not in abnormal ranges, for example, below 50db, determine in mine working face and have geologic anomaly situation, cannot exploit, otherwise determine in mine working face and do not have geologic anomaly situation, can exploit.
But the received field intensity of above-mentioned data acquisition modes receiver is actually and comprises various undesired signals in interior field intensity value, does not consider the electromagnetic interference of mine working face background, cause the detection accuracy of mine working face, accuracy lower.
Summary of the invention
The invention provides a kind of mine working face detection system and method, in order to solve in prior art the received field intensity of receiver, be actually and comprise various undesired signals in interior field intensity value, do not consider the electromagnetic interference of mine working face background, cause the lower technical matters of detection accuracy, accuracy of mine working face.
The invention provides a kind of mine working face detection system, comprising:
Transmitter, receiver and controller, described transmitter is arranged on the first tunnel of mine working face one side, and described receiver is arranged on the second tunnel of described mine working face opposite side, described controller and the communication connection of described transmitter and receiver;
Described transmitter, for the signal that the transmission cycle is T at the first launching site place in described the first tunnel, in the very first time of described cycle T section T1, to described mine working face, launch first signal, the amplitude of described first signal is to be greater than 0 constant, in the second time period T2 of described cycle T, to described mine working face, launch secondary signal, the amplitude of described secondary signal is 0, and the first control signal that receives described controller is to move to the second launching site;
Described receiver, for in the coverage transmitting at described transmitter according to the second control signal of described controller, move, with each acceptance point place corresponding on described the second tunnel, receive the first transmission signal through described mine working face transmission, described the first transmission signal is the described transmitter transmission signal that described first signal is corresponding in the first launching site is in described very first time section T1 and transmission signal sum corresponding to the undesired signal in described mine; In the coverage transmitting at described transmitter according to the 3rd control signal of described controller, again move, with each acceptance point place corresponding on described the second tunnel, receive the second transmission signal through described mine working face transmission, because the amplitude of described secondary signal is 0, described the second transmission signal is described transmitter transmission signal corresponding to undesired signal in described mine in the first launching site is in described very first time section T2; For each acceptance point, ask for the poor of the total intensity value H of described the first transmission signal and the field intensity value H0 of described the second transmission signal, obtain the field intensity increment H1 of each acceptance point, the field intensity increment H1 of described each acceptance point is for characterizing the mine working face result of detection in described coverage; To described controller, send indicator signal, so that described controller sends described the first control signal to described transmitter;
Described controller, for sending described the second control signal, send described three control signal to described receiver described when the second time period, T2 started to described receiver when the described very first time, section T1 starting, receive the indicator signal that described receiver sends, and to described transmitter, send described the first control signal according to described indicator signal.
The present invention also provides a kind of mine working face detection method, comprising:
Be arranged on the signal that the transmitter on the first tunnel of mine working face one side is T at the first launching site place in the transmission cycle, in the very first time of described cycle T section T1 to mine working face transmitting first signal; The amplitude of described first signal is to be greater than 0 constant;
Controller sent the second control signal to the receiver being arranged on the second tunnel of mine working face opposite side when the described very first time, section T1 started;
Described receiver receives described the second control signal, and move in the coverage transmitting at described transmitter, on described the second tunnel, each corresponding acceptance point place receives the first transmission signal through described mine working face transmission successively, and described the first transmission signal is transmission signal sum corresponding to the undesired signal in the described transmitter transmission signal that described first signal is corresponding in the first launching site is in very first time section T1 and described mine;
Described transmitter is launched secondary signal to mine working face in the first launching site is in the second time period T2; The amplitude of described secondary signal is 0;
Described controller sends three control signal to described receiver described when the second time period, T2 started;
Described receiver receives described the 3rd control signal, and again move in the coverage transmitting at described transmitter, on described the second tunnel, each corresponding acceptance point place receives the second transmission signal through described mine working face transmission successively, because the amplitude of described secondary signal is 0, described the second transmission signal is described transmitter transmission signal corresponding to undesired signal in described mine in the first launching site is in described the second time period T2; For each acceptance point, ask for the poor of the total intensity value H of described the first transmission signal and the field intensity value H0 of described the second transmission signal, obtain the field intensity increment H1 of each acceptance point, the field intensity increment H1 of described each acceptance point is for characterizing the mine working face result of detection in described coverage; To described controller, send indicator signal;
Described controller receives the indicator signal that described receiver sends, and to described transmitter, sends the first control signal according to described indicator signal;
Described transmitter receives the first control signal that described controller sends, and moves to the second launching site, continues to repeat the process of above-mentioned acquisition field intensity increment H1, until survey, covers whole mine working face.
The present invention is by using transmitter to send the signal that the cycle is T, in the very first time of cycle T section T1, to mine working face, launch the first signal of amplitude non-zero, in the second time period T2, to mine working face transmitting amplitude, be zero secondary signal, accordingly, receiver receives respectively the first transmission signal transmitting in very first time section T1, described the first transmission signal is transmission signal and transmission signal sum corresponding to the undesired signal in described mine that described first signal is corresponding, and in the second time period T2, receive the second transmission signal corresponding to undesired signal, the amplitude of the secondary signal of launching in the second time period T2 due to transmitter is 0, therefore the second transmission signal is transmission signal corresponding to undesired signal, then ask for the poor of the total intensity value H of the first transmission signal and the field intensity value H0 of the second transmission signal, obtain the field intensity increment H1 of each acceptance point, the field intensity increment herein obtaining has been eliminated the interference of undesired signal, more can accurately characterize the true geological condition of mine working face, detection to mine working face is more accurate.
Accompanying drawing explanation
Fig. 1 is application scenarios schematic diagram provided by the invention;
Fig. 2 is mine working face detection system example structure schematic diagram provided by the invention;
Fig. 3 is the radio wave signal schematic diagram of transmitter transmitting in mine working face detection system embodiment provided by the invention;
Fig. 4 is mine working face detection method embodiment schematic flow sheet provided by the invention.
Embodiment
For making object, technical scheme and the advantage of the embodiment of the present invention clearer, below in conjunction with the accompanying drawing in the embodiment of the present invention, technical scheme in the embodiment of the present invention is clearly and completely described, obviously, described embodiment is the present invention's part embodiment, rather than whole embodiment.Embodiment based in the present invention, those of ordinary skills, not making the every other embodiment obtaining under creative work prerequisite, belong to the scope of protection of the invention.
It should be noted that, embodiment of the present invention is applied in following scene, as shown in Figure 1, for application scenarios schematic diagram provided by the invention, in air way He Ji lane, You Liangge tunnel, the both sides of workplace, mine staff can be according to the width of workplace and length, a plurality of launching site are set in air way, and a plurality of acceptance points are set in Ji lane, transmitter, at the corresponding receiver section of signal cover of a launching site, is uniform-distribution with a plurality of acceptance points in a receiver section.For example, the spacing being conventionally arranged between a plurality of launching site in a tunnel is 50m, and the spacing being arranged between a plurality of acceptance points in another tunnel is 10m, conventionally corresponding 11 each acceptance points of launching site.
Below by embodiment, introduce in detail technical scheme of the present invention.
Embodiment mono-
As shown in Figure 2, for example structure schematic diagram provided by the invention, specifically comprise transmitter 11, receiver 13 and controller 12, described transmitter 11 is arranged on the first tunnel of mine working face one side, for example, be specifically as follows certain the launching site place being arranged on the air way shown in Fig. 1, described receiver 13 is arranged on the second tunnel of described mine working face opposite side, for example, be specifically as follows be arranged on the lane of Ji shown in Fig. 1 with corresponding certain the acceptance point place of above-mentioned certain launching site, described controller 12 and described transmitter 11 and receiver 13 communication connections.
Described transmitter 11, for the signal that the transmission cycle is T at the first launching site place in described the first tunnel, in the very first time of described cycle T section T1, to described mine working face, launch first signal, the amplitude of described first signal is to be greater than 0 constant, in the second time period T1 of described cycle T, to described mine working face, launch secondary signal, and the first control signal that receives described controller 12 is to move to the second launching site.
Described receiver 13, for in the coverage transmitting at described transmitter 11 according to the second control signal of described controller 12, move, with each acceptance point place corresponding on described the second tunnel, receive the first transmission signal through described mine working face transmission, described the first transmission signal is the first transmission signal and transmission signal sum corresponding to the undesired signal in described mine that described transmitter 11 first signal in the first launching site is in very first time section T1 is corresponding; In the coverage transmitting at described transmitter 11 according to the 3rd control signal of described controller 12, again move, with each acceptance point place corresponding on described the second tunnel, receive the second transmission signal through described mine working face transmission, because the amplitude of described secondary signal is 0, described the second transmission signal is described transmitter transmission signal corresponding to undesired signal in described mine in the first launching site is in described very first time section T2; For each acceptance point, ask for the poor of the field intensity value H of the first transmission signal and the field intensity value H0 of the second transmission signal, obtain the field intensity increment H1 of each acceptance point, the field intensity increment H1 of described each acceptance point is for characterizing the mine working face result of detection in described coverage; To described controller 12, send indicator signal, so that described controller 12 sends described the first control signal to described transmitter 11.
Described controller 12, for sending described the second control signal, send described three control signal to described receiver 13 described when the second time period, T2 started to described receiver 13 when the described very first time, section T1 starting, receive the indicator signal that described receiver 13 sends, and to described transmitter 11, send described the first control signal according to described indicator signal.
Specifically, described transmitter 11 can be radio wave transmission machine, is used for launching radiowave as shown in Figure 3, and wherein the transmission cycle of radiowave is T, wherein, T=T1+T2, wherein, T1 and T2 can be also the different time for the identical time.Described transmitter 11 is that T1 launches radio wave signal to described mine working face in the time period in very first time section, the amplitude of radio wave signal is to be greater than 0 constant, within the second time period, be that T2 launches radio wave signal to described mine working face in the time period, the amplitude of the radio wave signal now launched is 0.Correspondingly, described receiver 13 can be radio wave receiver, under the second control signal that is used for sending at described controller 12 is controlled, in the coverage of described transmitter 11 transmitting radio wave signals, move, suppose, described transmitter is positioned at launching site 1 place as shown in Figure 1, the coverage that so described transmitter 11 transmits is that the 0th acceptance point to the 10 acceptance points are within the scope of this, receiver moves to the 10th acceptance point from the 0th acceptance point successively so, receive successively the first transmission signal through described mine working face transmission simultaneously, described the first transmission signal is that described transmitter 11 is at launching site 1 corresponding transmission signal and transmission signal sum corresponding to the undesired signal in mine of radio wave signal that T1 launched in the time period, after the T1 time arrives, described receiver 13 is under the control of the 3rd control signal of described controller 12, in the coverage of described transmitter 11 transmitting radio wave signals, again move, can move to the 10th acceptance point from the 0th acceptance point, also can be back to the 0th acceptance point from the 10th acceptance point, and in mobile process, receive successively the second transmission signal of T2 described mine working face in the time period, due to, the radio wave signal amplitude that described transmitter 11 is launched in the time period at T2 is 0, be equivalent to stop to described mine working face transmitting radio wave signal, the second transmission signal of the described mine working face that therefore described receiver receives in the time period at T2 is the transmission signal of undesired signal, for each acceptance point, ask for the poor of the total intensity value H of the first transmission signal and the field intensity value H0 of the second transmission signal, for example can adopt formula H1=20lg (10
h/20-10
h0/20) calculate, thereby obtain the field intensity increment H1 of each acceptance point, the field intensity increment H1 of described each acceptance point is for characterizing the mine working face result of detection in described coverage, after the field intensity increment H1 of each acceptance point that obtains the first launching site place, to described controller 12, send indicator signal, so that described controller 12 sends described the first control signal to described transmitter 11, described transmitter 11 moves to i.e. the second launching site of next launching site, continue to repeat said process, try to achieve the field intensity increment of each acceptance point at the second launching site place.
In addition, after obtaining the field intensity increment H1 of each acceptance point, described receiver further determines that according to the field intensity increment H1 of described each acceptance point whether described mine working face is abnormal, if abnormal, send abnormal signal, for example, can determine according to the field intensity increment H1 of described each acceptance point the average field-strength increment H2 at described launching site place, described average field-strength increment H2 is compared with default abnormal field intensity value scope, if described average field-strength increment H2, within the scope of described default abnormal field intensity value, determines that described mine working face is abnormal.It should be noted that, default abnormal field intensity value scope is traditionally arranged to be normal value 10～20db or normal value 10～20db on the lower side on the upper side.
In addition, at described transmitter before first launching site in described the first tunnel is in and transmits to described mine working face in very first time section, while starting to survey mine working face, the probe requests thereby of described controller reception user input, controls described transmitter and described receiver is in running order.
The present embodiment is by being used transmitter to send the signal that the cycle is T, in the very first time of cycle T section T1, to mine working face, launch the first signal of amplitude non-zero, in the second time period T2, to mine working face transmitting amplitude, be zero secondary signal, accordingly, receiver receives respectively the first transmission signal transmitting in very first time section T1, described the first transmission signal is transmission signal and transmission signal sum corresponding to the undesired signal in described mine that described first signal is corresponding, and within the second time period, receive the second transmission signal corresponding to undesired signal, the amplitude of the secondary signal of launching in the second time period T2 due to transmitter is 0, therefore the second transmission signal is transmission signal corresponding to undesired signal, then ask for the poor of the total intensity value H of the first transmission signal and the field intensity value H0 of the second transmission signal, obtain the field intensity increment H1 of each acceptance point, the field intensity increment herein obtaining has been eliminated the interference of undesired signal, more can accurately characterize the true geological condition of mine working face, detection to mine working face is more accurate.
Mine working face detection system based on above-mentioned, the present invention also provides mine working face detection method, describes the principle of work of described mine working face detection system below by embodiment of the method in detail.
Embodiment bis-
As shown in Figure 4, for mine working face detection method embodiment schematic flow sheet provided by the invention, specifically comprise the steps:
S101, be arranged on the signal that the transmitter on the first tunnel of mine working face one side is T at the first launching site place in the transmission cycle, in the very first time of described cycle T section T1 to mine working face transmitting first signal; The amplitude of described first signal is to be greater than 0 constant;
Specifically, described transmitter can be radio wave transmission machine, the initial position of described transmitter can be positioned at launching site 1 place as shown in Figure 1, transmitting radiowave as shown in Figure 3, in very first time section, be for example that T1 launches in the time period continuously to described mine working face transmitting radio wave signal, the amplitude of radio wave signal is to be greater than 0 constant.
S102, controller sent the second control signal to the receiver being arranged on the second tunnel of mine working face opposite side when the described very first time, section T1 started;
Specifically, shown in controller when the described transmitter very first time, section T1 started to transmit, for example, described transmitter transmitting signal as shown in Figure 3, in the T1 time period, start, controller sends the second control signal to the receiver being arranged on the second tunnel of mine working face opposite side, to control in the coverage that described receiver transmits at described transmitter, moves.
S103, described receiver receive described the second control signal, and move in the coverage transmitting at described transmitter, on described the second tunnel, each corresponding acceptance point place receives the first transmission signal through described mine working face transmission successively, and described the first transmission signal is transmission signal sum corresponding to the undesired signal in the described transmitter transmission signal that described first signal is corresponding in the first launching site is in very first time section T1 and described mine;
Specifically, application scenarios as shown in Figure 1, described receiver receives after described the second control signal, under the control of described the second control signal, from the acceptance point 0 of launching site 1 corresponding receiver section, move to successively acceptance point 10, and in mobile, receive successively the first transmission signal of described mine working face corresponding to each acceptance point place, described the first transmission signal is transmission signal sum corresponding to the undesired signal of described transmitter in launching site 1 is in the T1 transmission signal that in the time period, first signal is corresponding and described mine.
S104, described transmitter are launched secondary signal to mine working face in the first launching site is in the second time period T2; The amplitude of described secondary signal is 0;
Specifically, described transmitter transmitting signal as shown in Figure 3, in the T2 time period, the signal amplitude of transmitting is 0, is equivalent to stop transmitting to mine working face.
S105, described controller send three control signal to described receiver described when the second time period, T2 started;
Specifically, shown in controller at described transmitter when the second time period, T2 started to transmit, for example, described transmitter transmitting signal as shown in Figure 3, in the T2 time period, start, controller sends the second control signal to the receiver being arranged on the second tunnel of mine working face opposite side, to control described receiver, in described transmitter transmits scope, moves.
S106, described receiver receive described the 3rd control signal, and again move in the coverage transmitting at described transmitter, on described the second tunnel, each corresponding acceptance point place receives the second transmission signal through described mine working face transmission successively, because the amplitude of described secondary signal is 0, described the second transmission signal is transmission signal corresponding to undesired signal in described mine; For each acceptance point, ask for the poor of the total intensity value H of the first transmission signal and the field intensity value H0 of the second transmission signal, obtain the field intensity increment H1 of each acceptance point, the field intensity increment H1 of described each acceptance point is for characterizing the mine working face result of detection in described coverage; To described controller, send indicator signal;
Specifically, application scenarios as shown in Figure 1, described receiver receives after described the second control signal, under the control of described the second control signal, from the acceptance point 0 of launching site 1 corresponding receiver section, move to successively acceptance point 10, and in mobile, receive successively the second transmission signal of described mine working face corresponding to each acceptance point place, because the amplitude of described secondary signal is 0, described the second transmission signal is described transmitter and is in T2 transmission signal corresponding to undesired signal in the time period at launching site 1.After obtaining first transmission signal and the second transmission signal of each acceptance point, ask for the poor of the total intensity value H of the first transmission signal and the field intensity value H0 of the second transmission signal, obtain the field intensity increment H1 of each acceptance point, the field intensity increment H1 of described each acceptance point is for characterizing the mine working face result of detection in described coverage; For example, can adopt formula H1=20lg (10
h/20-10
h0/20) calculate, thereby obtain the field intensity increment H1 of each acceptance point, after obtaining the field intensity increment H1 of each acceptance point, to described controller, send indicator signal, so that described controller sends the first control signal according to described indicator signal to described transmitter.
In addition, after described receiver obtains the field intensity increment H1 of each acceptance point, described receiver determines that according to the field intensity increment H1 of described each acceptance point whether described mine working face is abnormal, if abnormal, sends abnormal signal.Specifically, whether described receiver can determine by the following methods described mine working face abnormal, described receiver is determined the average field-strength increment H2 at described launching site place according to the field intensity increment H1 of described each acceptance point, described average field-strength increment H2 is compared with default abnormal field intensity value scope, if described average field-strength increment H2, within the scope of described default abnormal field intensity value, determines that described mine working face is abnormal.
S107, described controller receive the indicator signal that described receiver sends, and to described transmitter, send the first control signal according to described indicator signal;
S108, described transmitter receive the first control signal that described controller sends, and move to the second launching site, continue to repeat the process of above-mentioned acquisition field intensity increment H1, until survey, cover whole mine working face.
It should be noted that: for aforesaid each embodiment of the method, for simple description, therefore it is all expressed as to a series of combination of actions, but those skilled in the art should know, the present invention is not subject to the restriction of described sequence of movement, because according to the present invention, some step can adopt other orders or carry out simultaneously.Secondly, those skilled in the art also should know, the embodiment described in instructions all belongs to preferred embodiment, and related action and module might not be that the present invention is necessary.
One of ordinary skill in the art will appreciate that: all or part of step that realizes said method embodiment can complete by the relevant hardware of programmed instruction, aforesaid program can be stored in a computer read/write memory medium, this program, when carrying out, is carried out the step that comprises said method embodiment; And aforesaid storage medium comprises: various media that can be program code stored such as ROM, RAM, magnetic disc or CDs.
Finally it should be noted that: above embodiment only, in order to technical scheme of the present invention to be described, is not intended to limit; Although the present invention is had been described in detail with reference to previous embodiment, those of ordinary skill in the art is to be understood that: its technical scheme that still can record aforementioned each embodiment is modified, or part technical characterictic is wherein equal to replacement; And these modifications or replacement do not make the essence of appropriate technical solution depart from the spirit and scope of various embodiments of the present invention technical scheme.
Claims (10)
1. a mine working face detection system, is characterized in that, comprising:
Transmitter, receiver and controller, described transmitter is arranged on the first tunnel of mine working face one side, and described receiver is arranged on the second tunnel of described mine working face opposite side, described controller and the communication connection of described transmitter and receiver;
Described transmitter, for the signal that the transmission cycle is T at the first launching site place in described the first tunnel, in the very first time of described cycle T section T1, to described mine working face, launch first signal, the amplitude of described first signal is to be greater than 0 constant, in the second time period T2 of described cycle T, to described mine working face, launch secondary signal, the amplitude of described secondary signal is 0, and the first control signal that receives described controller is to move to the second launching site;
Described receiver, for in the coverage transmitting at described transmitter according to the second control signal of described controller, move, with each acceptance point place corresponding on described the second tunnel, receive the first transmission signal through described mine working face transmission, described the first transmission signal is the described transmitter transmission signal that described first signal is corresponding in the first launching site is in described very first time section T1 and transmission signal sum corresponding to the undesired signal in described mine; In the coverage transmitting at described transmitter according to the 3rd control signal of described controller, again move, with each acceptance point place corresponding on described the second tunnel, receive the second transmission signal through described mine working face transmission, because the amplitude of described secondary signal is 0, described the second transmission signal is described transmitter transmission signal corresponding to undesired signal in described mine in the first launching site is in described very first time section T2; For each acceptance point, ask for the poor of the total intensity value H of described the first transmission signal and the field intensity value H0 of described the second transmission signal, obtain the field intensity increment H1 of each acceptance point, the field intensity increment H1 of described each acceptance point is for characterizing the mine working face result of detection in described coverage; To described controller, send indicator signal, so that described controller sends described the first control signal to described transmitter;
Described controller, for sending described the second control signal, send described three control signal to described receiver described when the second time period, T2 started to described receiver when the described very first time, section T1 starting, receive the indicator signal that described receiver sends, and to described transmitter, send described the first control signal according to described indicator signal.
2. system according to claim 1, is characterized in that, described receiver, also for after obtaining the field intensity increment H1 of each acceptance point, according to the field intensity increment H1 of described each acceptance point, determine that whether described mine working face is abnormal, if abnormal, send abnormal signal.
3. system according to claim 2, it is characterized in that, described receiver, specifically for determine the average field-strength increment H2 at described launching site place according to the field intensity increment H1 of described each acceptance point, described average field-strength increment H2 is compared with default abnormal field intensity value scope, if described average field-strength increment H2, within the scope of described default abnormal field intensity value, determines that described mine working face is abnormal.
4. according to the system described in claim 1～3 any one, it is characterized in that, described controller, also at described transmitter before first launching site in described the first tunnel is in and transmits to described mine working face in very first time section T1, the probe requests thereby of reception user input, controls described transmitter and described receiver is in running order.
5. according to the system described in claim 1～3 any one, it is characterized in that described receiver, specifically for for each acceptance point, adopts formula H1=20lg (10
h/20-10
h0/20) calculate, obtain the field intensity increment H1 that each acceptance point is corresponding.
6. a mine working face detection method, is characterized in that, comprising:
Be arranged on the signal that the transmitter on the first tunnel of mine working face one side is T at the first launching site place in the transmission cycle, in the very first time of described cycle T section T1 to mine working face transmitting first signal; The amplitude of described first signal is to be greater than 0 constant;
Controller sent the second control signal to the receiver being arranged on the second tunnel of mine working face opposite side when the described very first time, section T1 started;
Described receiver receives described the second control signal, and move in the coverage transmitting at described transmitter, on described the second tunnel, each corresponding acceptance point place receives the first transmission signal through described mine working face transmission successively, and described the first transmission signal is transmission signal sum corresponding to the undesired signal in the described transmitter transmission signal that described first signal is corresponding in the first launching site is in very first time section T1 and described mine;
Described transmitter is launched secondary signal to mine working face in the first launching site is in the second time period T2; The amplitude of described secondary signal is 0;
Described controller sends three control signal to described receiver described when the second time period, T2 started;
Described receiver receives described the 3rd control signal, and again move in the coverage transmitting at described transmitter, on described the second tunnel, each corresponding acceptance point place receives the second transmission signal through described mine working face transmission successively, because the amplitude of described secondary signal is 0, described the second transmission signal is described transmitter transmission signal corresponding to undesired signal in described mine in the first launching site is in described the second time period T2; For each acceptance point, ask for the poor of the total intensity value H of described the first transmission signal and the field intensity value H0 of described the second transmission signal, obtain the field intensity increment H1 of each acceptance point, the field intensity increment H1 of described each acceptance point is for characterizing the mine working face result of detection in described coverage; To described controller, send indicator signal;
Described controller receives the indicator signal that described receiver sends, and to described transmitter, sends the first control signal according to described indicator signal;
Described transmitter receives the first control signal that described controller sends, and moves to the second launching site, continues to repeat the process of above-mentioned acquisition field intensity increment H1, until survey, covers whole mine working face.
7. method according to claim 6, is characterized in that, after described receiver obtains the field intensity increment H1 of each acceptance point, also comprises:
Described receiver determines that according to the field intensity increment H1 of described each acceptance point whether described mine working face is abnormal, if abnormal, sends abnormal signal.
8. method according to claim 7, is characterized in that, described receiver determines that according to the field intensity increment H1 of described each acceptance point whether described mine working face is abnormal, comprising:
Described receiver is determined the average field-strength increment H2 at described launching site place according to the field intensity increment H1 of described each acceptance point, described average field-strength increment H2 is compared with default abnormal field intensity value scope, if described average field-strength increment H2, within the scope of described default abnormal field intensity value, determines that described mine working face is abnormal.
9. according to the method described in claim 6～8 any one, it is characterized in that, at described transmitter, before first launching site in described the first tunnel is in and transmits to described mine working face in very first time section T1, also comprise:
The probe requests thereby of described controller reception user input, controls described transmitter and described receiver is in running order.
10. according to the method described in claim 6～8 any one, it is characterized in that, described receiver, for each acceptance point, is asked for the poor of the field intensity value H of the first transmission signal and the field intensity value H0 of the second transmission signal, obtains the field intensity increment H1 of each acceptance point, comprising:
Described receiver, for each acceptance point, adopts formula H1=20lg (10
h/20-10
h0/20) calculate, obtain the field intensity increment H1 that each acceptance point is corresponding.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410181822.4A CN103969691A (en) | 2014-04-30 | 2014-04-30 | Mine working face detection system and method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410181822.4A CN103969691A (en) | 2014-04-30 | 2014-04-30 | Mine working face detection system and method |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN103969691A true CN103969691A (en) | 2014-08-06 |
Family
ID=51239415
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410181822.4A Pending CN103969691A (en) | 2014-04-30 | 2014-04-30 | Mine working face detection system and method |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN103969691A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107085243A (en) * | 2017-05-18 | 2017-08-22 | 淮南矿业(集团)有限责任公司 | A kind of assay method and drawing formation system of filling-in field strength |
| CN110043319A (en) * | 2019-04-24 | 2019-07-23 | 淮南矿业(集团)有限责任公司 | A kind of method of Mine Wireless wave detection operations face strike fault |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5667778A (en) * | 1979-11-02 | 1981-06-08 | Continental Oil Co | Method of and apparatus for underground prospecting radar |
| US20080185903A1 (en) * | 2006-06-29 | 2008-08-07 | Igor Bausov | Look-ahead radar and horizon sensing for coal cutting drums and horizontal directional drills |
| CN102176064A (en) * | 2011-02-14 | 2011-09-07 | 福州华虹智能科技开发有限公司 | Method for eliminating electromagnetic interference signals of underground coalmine transient electromagnetic instrument |
| CN102681017A (en) * | 2012-05-31 | 2012-09-19 | 河北煤炭科学研究院 | Amplitude-frequency electric perspective detection method |
| CN102967886A (en) * | 2012-06-19 | 2013-03-13 | 淮南矿业(集团)有限责任公司 | System and method for obtaining field intensity increment value on mine working face through radio wave gallery penetration |
-
2014
- 2014-04-30 CN CN201410181822.4A patent/CN103969691A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5667778A (en) * | 1979-11-02 | 1981-06-08 | Continental Oil Co | Method of and apparatus for underground prospecting radar |
| US20080185903A1 (en) * | 2006-06-29 | 2008-08-07 | Igor Bausov | Look-ahead radar and horizon sensing for coal cutting drums and horizontal directional drills |
| CN102176064A (en) * | 2011-02-14 | 2011-09-07 | 福州华虹智能科技开发有限公司 | Method for eliminating electromagnetic interference signals of underground coalmine transient electromagnetic instrument |
| CN102681017A (en) * | 2012-05-31 | 2012-09-19 | 河北煤炭科学研究院 | Amplitude-frequency electric perspective detection method |
| CN102967886A (en) * | 2012-06-19 | 2013-03-13 | 淮南矿业(集团)有限责任公司 | System and method for obtaining field intensity increment value on mine working face through radio wave gallery penetration |
Non-Patent Citations (1)
| Title |
|---|
| 李平: "高接收信噪比的远距离SAW传感系统研究", 《仪器仪表学报》 * |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107085243A (en) * | 2017-05-18 | 2017-08-22 | 淮南矿业(集团)有限责任公司 | A kind of assay method and drawing formation system of filling-in field strength |
| CN107085243B (en) * | 2017-05-18 | 2018-11-23 | 淮南矿业(集团)有限责任公司 | A kind of measuring method and drawing formation system of filling-in field strength |
| CN110043319A (en) * | 2019-04-24 | 2019-07-23 | 淮南矿业(集团)有限责任公司 | A kind of method of Mine Wireless wave detection operations face strike fault |
| CN110043319B (en) * | 2019-04-24 | 2021-06-15 | 淮南矿业(集团)有限责任公司 | Method for detecting working face strike fault by mine radio wave |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN108390748B (en) | Data transmission method, device and system | |
| MX2018000547A (en) | Method and apparatus for communicating with premises equipment. | |
| CN104239922A (en) | Pipeline marking and real-time sounding system on basis of RFID (radio frequency identification) technology | |
| CN104459807A (en) | One-sending and multi-receiving radio wave tunnel penetration field strength measuring system and method between double roadways | |
| CN105277968B (en) | A kind of automatic excitation control method and device in earthquake stimulation source | |
| CN102967886B (en) | Mine working face radiowave is cheated field intensity increment size and is obtained system and method | |
| CN103955004A (en) | Four-channel nuclear magnetic resonance signal full-wave acquisition system and acquisition method | |
| CN103969691A (en) | Mine working face detection system and method | |
| CN105019891A (en) | Underground coal mine logging-while-drilling tool based on electromagnetic wave resistivity and measuring method thereof | |
| ZA202304011B (en) | Blasting system | |
| CN103529479B (en) | Coal mine underground tunnel perspective detection system | |
| CN203606514U (en) | Gallery penetration acquisition system | |
| CN102944797A (en) | Method for measuring coupling degree of antennas | |
| CN205374761U (en) | Detection apparatus for urban road and underground piping hidden danger | |
| CN204287508U (en) | Between two lane, multicast radiowave cheats field strength measurement system | |
| CN109405686B (en) | Drilling and blasting method adopting intelligent drilling and blasting system of hydro-electric engineering | |
| CN102944902A (en) | Radio wave tunnel scenograph | |
| CN104202408B (en) | A kind of method and system for obtaining each node location in marine tow the whole network | |
| CN103945414B (en) | Method and equipment for determining mapping relation between frequency band and long-distance power transfer inclination angle | |
| CN103792585A (en) | Multi-medium structure measuring method and device | |
| CN203535239U (en) | Coal mine underground tunnel perspective detection system | |
| DE50312068D1 (en) | Method for transmitting control commands from a transmitting element to a measuring probe | |
| CN103675924A (en) | Tunnel radio-wave penetration collection system | |
| US20150138918A1 (en) | Seismic survey shot coordination apparatus method and system | |
| CN105445807A (en) | Mining multi-frequency synchronous wireless electromagnetic wave perspective device and method |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20140806 |
|
| RJ01 | Rejection of invention patent application after publication |