CN110266816A - A kind of communication device of the underground with emergency optical communication capabilities - Google Patents
A kind of communication device of the underground with emergency optical communication capabilities Download PDFInfo
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- 230000006854 communication Effects 0.000 title claims abstract description 176
- 238000004891 communication Methods 0.000 title claims abstract description 175
- 230000003287 optical effect Effects 0.000 title claims abstract description 42
- 230000005540 biological transmission Effects 0.000 claims abstract description 22
- 238000001514 detection method Methods 0.000 claims abstract description 13
- 238000012545 processing Methods 0.000 claims abstract description 6
- 238000000034 method Methods 0.000 claims description 11
- 230000002159 abnormal effect Effects 0.000 claims description 8
- 230000008859 change Effects 0.000 claims description 5
- 239000003086 colorant Substances 0.000 claims description 4
- GNFTZDOKVXKIBK-UHFFFAOYSA-N 3-(2-methoxyethoxy)benzohydrazide Chemical compound COCCOC1=CC=CC(C(=O)NN)=C1 GNFTZDOKVXKIBK-UHFFFAOYSA-N 0.000 claims description 3
- 238000006243 chemical reaction Methods 0.000 claims description 2
- 238000005065 mining Methods 0.000 claims description 2
- 230000005611 electricity Effects 0.000 claims 1
- 238000012544 monitoring process Methods 0.000 abstract description 6
- 239000003245 coal Substances 0.000 abstract description 4
- 238000004519 manufacturing process Methods 0.000 abstract description 4
- 238000010586 diagram Methods 0.000 description 8
- 238000007726 management method Methods 0.000 description 7
- 230000004913 activation Effects 0.000 description 6
- 230000008569 process Effects 0.000 description 6
- 230000006378 damage Effects 0.000 description 3
- 238000004880 explosion Methods 0.000 description 3
- 239000007789 gas Substances 0.000 description 3
- WHXSMMKQMYFTQS-UHFFFAOYSA-N Lithium Chemical compound [Li] WHXSMMKQMYFTQS-UHFFFAOYSA-N 0.000 description 2
- 206010033799 Paralysis Diseases 0.000 description 2
- 230000008901 benefit Effects 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 229910052744 lithium Inorganic materials 0.000 description 2
- 238000004020 luminiscence type Methods 0.000 description 2
- VNWKTOKETHGBQD-UHFFFAOYSA-N methane Chemical compound C VNWKTOKETHGBQD-UHFFFAOYSA-N 0.000 description 2
- HBBGRARXTFLTSG-UHFFFAOYSA-N Lithium ion Chemical compound [Li+] HBBGRARXTFLTSG-UHFFFAOYSA-N 0.000 description 1
- 230000005856 abnormality Effects 0.000 description 1
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 1
- 229910002056 binary alloy Inorganic materials 0.000 description 1
- 238000007600 charging Methods 0.000 description 1
- 238000010280 constant potential charging Methods 0.000 description 1
- 230000006837 decompression Effects 0.000 description 1
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- 230000037430 deletion Effects 0.000 description 1
- 239000000428 dust Substances 0.000 description 1
- 230000005284 excitation Effects 0.000 description 1
- 239000000835 fiber Substances 0.000 description 1
- 229910001416 lithium ion Inorganic materials 0.000 description 1
- 239000013307 optical fiber Substances 0.000 description 1
- 239000001301 oxygen Substances 0.000 description 1
- 229910052760 oxygen Inorganic materials 0.000 description 1
- 230000002093 peripheral effect Effects 0.000 description 1
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- 230000000087 stabilizing effect Effects 0.000 description 1
Classifications
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- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21F—SAFETY DEVICES, TRANSPORT, FILLING-UP, RESCUE, VENTILATION, OR DRAINING IN OR OF MINES OR TUNNELS
- E21F17/00—Methods or devices for use in mines or tunnels, not covered elsewhere
- E21F17/18—Special adaptations of signalling or alarm devices
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04B—TRANSMISSION
- H04B10/00—Transmission systems employing electromagnetic waves other than radio-waves, e.g. infrared, visible or ultraviolet light, or employing corpuscular radiation, e.g. quantum communication
- H04B10/11—Arrangements specific to free-space transmission, i.e. transmission through air or vacuum
- H04B10/114—Indoor or close-range type systems
- H04B10/1143—Bidirectional transmission
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04B—TRANSMISSION
- H04B10/00—Transmission systems employing electromagnetic waves other than radio-waves, e.g. infrared, visible or ultraviolet light, or employing corpuscular radiation, e.g. quantum communication
- H04B10/11—Arrangements specific to free-space transmission, i.e. transmission through air or vacuum
- H04B10/114—Indoor or close-range type systems
- H04B10/116—Visible light communication
-
- 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
-
- 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
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- Engineering & Computer Science (AREA)
- Signal Processing (AREA)
- Computer Networks & Wireless Communication (AREA)
- Physics & Mathematics (AREA)
- Electromagnetism (AREA)
- Mining & Mineral Resources (AREA)
- Medical Informatics (AREA)
- General Health & Medical Sciences (AREA)
- Computing Systems (AREA)
- Multimedia (AREA)
- Health & Medical Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Geochemistry & Mineralogy (AREA)
- Geology (AREA)
- Optical Communication System (AREA)
Abstract
A kind of communication device the invention discloses underground with emergency optical communication capabilities, this communication device utilizes the established underground wired communication system of most coal mines, wireless communication system and video monitoring system, complete downhole data transmission in varied situations, especially in extreme circumstances, use optical communication mode, video is obtained by fixed or mobile video acquisition device, is parsed by image processing server, realizes the Data Detection to subsurface environment；Communication process is safe and reliable, and stability is high, strong antijamming capability；It is simple using this communication identification equipment, the features such as easily implementation；Be conducive to mine safety production, can also assist the search operations under extreme case.
Description
Technical field
The present invention relates to fields such as image recognition technology and the communication technologys, in particular to a kind of underground is with emergency optic communication
The communication device of function.
Background technique
The carbonomonoxide concentration of real time monitoring underground coal mine, gas concentration lwevel, oxygen concentration, methane concentration, dust are dense
The data such as degree, temperature, humidity and wind speed are the important leverages of mine safety production, currently, mainly using wired communication mode or
Person wireless communication mode, when underground coal mine occur mine landslide, it is permeable when be likely to result in wire communication line
Damage, after the major accidents such as gas explosion occur for underground coal mine, wire communication line, radio communication base station and power supply line are all
Serious destruction will be will receive, it is likely that can paralyse can not normal use, cause to protect between downhole sensor and monitoring center
Good communication is held, this will be checked to underground problem, rescue work causes extreme difficulties.
In addition there are also a kind of emergency communication mode, i.e., small by rear emergency management and rescue personnel control machinery after the accident
Vehicle temporarily builds communication line to underground, provides the real time information in underground part region for rescue personnel on well, but if sends out
Raw landslide, mechanical trolley will not pass through, and communication equipment can not also be transported to.
Therefore, mine safety production is highly desirable to a kind of Uninterrupted Sampling communication device for being able to satisfy and requiring as follows:
1. under normal circumstances, can efficiently, accurately and rapidly parameters under production wells, and it is with good stability.
2. in major accident, even wire communication line, radio communication base station and power supply line all paralyse,
Also to guarantee the reliable transmission of data.
Summary of the invention
A kind of device it is an object of that present invention to provide underground with emergency optical communication capabilities passes through wired, wireless and light
The mode of communication is completed using wired communication system established under mine, wireless communication system and video monitoring system not
With the downhole data transmission in situation, the scheme is easily achieved, and can guarantee the reliable transmission of data in extreme circumstances.
A kind of communication device of underground with emergency optical communication capabilities includes: control unit, Landline communication unit, channel radio
Believe unit, optical communication element, sensor communication interfaces, Power Management Unit, external power supply and battery group；
Described control unit, core element are processors, are responsible for all data of processing, operation communication device；
The Landline communication unit uses the mode of wire communication to transmit data under normal circumstances for device；
The wireless communication unit when mode failure for wire communication, transmits data using the mode of wireless communication；
The optic communication communication unit when mode failure for wired and wireless communication, uses the mode of light communication
Data are transmitted, the coding mode that control unit controls the bright dark variation of light-emitting component, color change or flicker frequency change is sent
Data；
The sensor communication interfaces, for being communicated at least one mounted sensor of underground；
The Power Management Unit, for being direct current and the detection storage the mining AC conversion of the external power supply
Battery electric quantity temperature voltage state, when above-mentioned function occurs abnormal, the Power Management Unit sends alarm signal；
Specific communication means is as follows:
A. the mounted sensing data in underground is transmitted into the real time data under mine by the method for wire communication；
B. detection wired communication functions whether can normal transmission data then enter step c, otherwise not in case of abnormal
Process return step a；
C. base station or mobile accessible equipment are searched；
D. whether detection wireless communication can connect wireless network, if can connect, normal transmission data then enter step
Rapid e, otherwise enters step g；
E. start wireless communication function, transmit the real time data under mine and send wire communication fault-signal；
F. detection wireless communication function whether can normal transmission data then enter step g, otherwise not in case of abnormal
Process return step e；
G. start optical communication capabilities, send the data of sensor acquisition, and send wired and wireless communication failure signal,
C is entered step simultaneously.
1. communication device of a kind of underground with emergency optical communication capabilities described in further comprises: what light-emitting component issued
Light includes the light of various colors or the naked eyes black light of infrared ray.
2. communication device of a kind of underground with emergency optical communication capabilities described in further comprises: the sensor communication
Interface, communication mode include I2C communication, RS485 communication, RS232 communication, Bluetooth communication, infrared communication or wireless digital transmission communication.
3. communication device of a kind of underground with emergency optical communication capabilities described in further comprises: the light-emitting component is bright
The coding mode secretly changed includes indicating binary number with different bright dark length of time.
4. communication device of a kind of underground with emergency optical communication capabilities described in further comprises: the light-emitting component face
The coding mode of color change includes indicating binary number with different colors.
5. communication device of a kind of underground with emergency optical communication capabilities described in further comprises: the light-emitting component dodges
The coding mode of bright frequency includes indicating binary number with different flicker frequencies.
Detailed description of the invention
Device communication system schematic diagram of the underground Fig. 1 with emergency optical communication capabilities.
Device communication steps schematic diagram of the underground Fig. 2 with emergency optical communication capabilities.
Device hardware schematic of the underground Fig. 3 with emergency optical communication capabilities.
Device bright dark coding principle figure of the underground Fig. 4 with emergency optical communication capabilities.
Device coloud coding schematic diagram of the underground Fig. 5 with emergency optical communication capabilities.
Device frequency coding schematic diagram of the underground Fig. 6 with emergency optical communication capabilities.
Fig. 7 optic communication recognition methods step schematic diagram.
Specific embodiment
A kind of device communication system of underground with emergency optical communication capabilities, as Fig. 1 implementation example in, including following three
A part: wired communication system, wireless communication system and optical communication system.
Wired communication system is whole system most important means of communication in normal operation, and system includes downhole sensor
(8), the network management devices, clothes such as device (7), underground interchanger (5), core switch (4) with emergency optical communication capabilities
Business device (3), hard disk array (2) and monitor workstation (1), the device (7) with emergency optical communication capabilities pass through the communications cable and connect
It connects underground interchanger (5), underground interchanger (5) connects core switch (4) by optical fiber, to guarantee bandwidth.
Wireless communication system is whole system subsidiary communications means in operation, is started in wired fiber problems,
System includes the network management devices such as downhole sensor (6), optical splitter, radio communication base station (6), underground interchanger (5), service
Device (3), hard disk array (2) and monitor workstation (1) are installed radio communication base station (1) at interval of certain distance in underground, are passed through
CAN bus or fieldbus mode are connect with underground interchanger (5), and wireless network type includes Wi-Fi and ZigBee etc..
Optical communication system is emergency communication means in whole system operation, and the major accidents such as gas explosion occur under mine
Afterwards, wire communication line, wireless communication base station (6) and power supply line will necessarily be led to starting light by different degrees of destruction
Telecommunication function provides last guarantee for search operations, and optical communication system includes following four subsystem:
1. downhole sensor data acquisition system, downhole sensor acquires the various data of position, is sent to and has
The device (7) for optical communication capabilities of meeting an urgent need, carries out data transmission.
2. video acquisition system, video can be obtained by fixed or mobile video acquisition device, and fixed video is adopted
Collection is that headend equipment (9) includes video camera, anti-explosion cover, bracket, is mounted on downhole surveillance scene.Target area is monitored, camera shooting
Machine connects video encoder, and the vision signal of simulation is carried out digitlization and compressed encoding, is connect with underground interchanger (5).
3. signal transmission system is connected from headend equipment (9) to underground interchanger (5) with the communications cable, to guarantee to monitor
The accurate delivery of information.
4. terminal display system, video data is all stored in hard disk array (2), and server (3) identifies in image
The signal that sensor issues, decoding data, monitor workstation (1) realize that data monitoring and real time monitoring video are shown, can be with
Browse to all head end videos.
Underground is formed with the device hardware of emergency optical communication capabilities as shown in Fig. 2, specifically including:
1. Landline communication unit (201) has good noise resistance interference and remote transmission etc. using 485 chips
Advantage is communicated with server (3).
2. wireless communication unit (202) is powered using ESP8266 chip by the DC power supply of 3.3V, small in size, power consumption
It is low, support transparent transmission, packet loss phenomenon is not serious, can external antenna.
3. optical communication element (203), LED driving is driven using the low voltage difference LED drive chip SP7614 of SIPex company
LED, SP7614 are the decompression LED drivers based on sink current type, when cell voltage is more than or equal to protection voltage, can be protected
The electric current that card flows through LED is constant, realizes constant current driving.Processor, which controls LED current by pwm pulse, makes LED flashing realize letter
Number send.When lithium battery voltage is lower than 3.5V, by closing LED to SP7614 switch control mouth and entering low-power consumption mode.
4. control unit (204), core element are processors, the MCS-51 series 80C51 monolithic of Intel Company is selected
Machine, inside the model by CPU, 4KB ROM, 128B RAM, 48 I/O parallel ports, a serial port, two 16
The composition such as Timer/Counter and interruption system；It has the step-by-step operation system of complete set from internal hardware to software, it
Not many advantages, such as process object is not word or byte but position, can be carried out the logical operation of position, and function is very complete.
5. buzzer (205) selects passive separate excitation type buzzer.
6. sensor (206), selection has the sensor of pick-up function, exports as defined standard signal, facilitates processing.
7. battery management unit (207) selects linear lithium cell chip SL1053, the precharge of integrated chip high-precision, perseverance
Constant-current charge, constant voltage charging, battery status detection, monitoring temperature, charging terminate the property such as low leakage, charged state instruction
It can be.
8. battery (208) selects lithium ion battery, protected with current-limiting protection, short circuit current protection, super-charge super-discharge,
The necessary functions such as anti-reverse and abnormality processing, voltage stabilizing chip is using 78 series, and the peripheral cell needed for it is few, inside circuit
There are also overcurrent, overheat and the protection circuits for adjusting pipe, use reliable convenience, and 78 is serial, input voltage 5-18V, maximum defeated
Electric current is 1.5A out, and actual current can be adjusted according to external resistor, respectively to processor, communication interface and communication power supply power supply.
9.. external power supply (209) can use 220V alternating current power supply to the device.
10. sensor communication interfaces (210), for receiving the signal from sensor, communication mode includes I2C communication,
RS485 communication, RS232 communication, Bluetooth communication, infrared communication or wireless digital transmission communication.
The process of device communication system of the underground with emergency optical communication capabilities is as shown in figure 3, specific communication means is as follows:
1. the mounted sensing data in underground (301) is transmitted the real-time number under mine by the method for wire communication
According to；
2. (302) detection wired communication functions whether can normal transmission data then enter step in case of abnormal
(303), return step (301) are otherwise not processed；
3. (303) searching base station or mobile accessible equipment；
4. (304) whether detection wireless communication can connect wireless network, if can connect, normal transmission data, then
(305) are entered step, (307) are otherwise entered step；
5. (305) starting wireless communication function, transmitting the real time data under mine and sending wire communication fault-signal；
6. (306) detection wireless communication function whether can normal transmission data then enter step in case of abnormal
(307), return step (305) are otherwise not processed；
7. (307) starting optical communication capabilities, the data of sensor acquisition are sent, and send wired and wireless communication failure
Signal, while entering step (303).
Coding mode 1:
The bright private mark schematic diagram such as Fig. 4 of device of underground with emergency optical communication capabilities.The light that light-emitting component issues includes each
The light of kind color or the naked eyes black light of infrared ray are taken by fixed or mobile video acquisition device through image procossing
Business device operation, to light emitting device state for time timing, light emitting device has activation and closes two states, it is specified that each closed state
Time be 0.08 second；One group of complete transmission data is made of guidance code (401), numeric data code (402) and check code (403)；Draw
Leading code (401) is the signal for indicating this data and starting, and according to the different state of activation time, the sensing data sent
The time of type, activation is greater than 0.16 second, is made of " activation in x seconds is closed for+0.08 second "；Numeric data code (402) is by 12 binary systems
Array is at wherein logical one is indicated by " activation in 0.08 second is closed for+0.08 second ", and logical zero is by " activation in 0.16 second is closed for+0.08 second
Close " it indicates；Check code (403) is made of 8 bits, and purpose is mainly to guarantee the accuracy of data.
Coding mode 2:
The device coloud coding schematic diagram such as Fig. 5 of underground with emergency optical communication capabilities.In this example, one group of complete transmission
Data are made of guidance code (501), numeric data code (502) and check code (503)；Guidance code (501) red light green light activates simultaneously, is
Indicate the signal that this data starts；Numeric data code (502) and check code (503) represent binary one by red light is bright, and green light represents two
System 0, traffic lights can not be bright simultaneously at this time.
Coding mode 3:
The device frequency coding schematic diagram such as Fig. 6 of underground with emergency optical communication capabilities.In this example, processor passes through control
Light-emitting component strobing frequency processed indicates binary number, the first frequency, which continues for some time, represents binary number 1, second of frequency
It continues for some time and represents binary number 0, transmission data can be realized.
Image processing server (3) identification process is as shown in fig. 7, detailed process is as follows:
1. (701) segmented image facilitates tracking and positioning luminescence sensor, execute (702)；
2. (702) judging in image with the presence or absence of luminescence sensor, if can detect light flash, be held if detected
Row (703) otherwise executes (701) again；
3. (703) the time timing lighted to each light executes (704)；
4. (704) judging whether to detect guidance code, if detecting execution (705), otherwise (711) are executed；
5. (705) identifying data type according to the feature of guidance code, execute (706)；
6. (706) identifying numeric data code, execute (707)；
7. (707) identifying check code, execute (708)；
8. (708) judge whether this group of data are made of guidance code, numeric data code and check code, it is no if it is execution (709)
Then execute (711)；
9. (709) server parses data, the parameter of sensor position is obtained, is executed (710)；
10. (710) recording the time of downhole sensor data and end of identification, store into hard disk array, executes
(711)；
11. temporary deletion (711) is reset data, execute (703).
Claims (6)
1. a kind of communication device of underground with emergency optical communication capabilities, which is characterized in that the device includes: control unit has
Line communication unit, wireless communication unit, optical communication element, sensor communication interfaces, Power Management Unit, external power supply and electric power storage
Pond group；
Described control unit, core element are processors, are responsible for all data of processing, operation communication device；
The Landline communication unit uses the mode of wire communication to transmit data under normal circumstances for device；
The wireless communication unit when mode failure for wire communication, transmits data using the mode of wireless communication；
The optic communication communication unit when mode failure for wired and wireless communication, is transmitted using the mode of light communication
Data send number by the coding mode of the bright dark variation of control unit control light-emitting component, color change or flicker frequency variation
According to；
The sensor communication interfaces, for being communicated at least one mounted sensor of underground；
The Power Management Unit, for being direct current and the detection battery the mining AC conversion of the external power supply
Group electricity temperature voltage state, when above-mentioned function occurs abnormal, the Power Management Unit sends alarm signal；
Specific communication means is as follows:
A. the mounted sensing data in underground is transmitted into the real time data under mine by the method for wire communication；
B. detection wired communication functions whether can normal transmission data then enter step c, otherwise do not do and locate in case of abnormal
Manage return step a；
C. base station or mobile accessible equipment are searched；
D. whether detection wireless communication can connect wireless network, if can connect, normal transmission data then enter step e,
Otherwise g is entered step；
E. start wireless communication function, transmit the real time data under mine and send wire communication fault-signal；
F. detection wireless communication function whether can normal transmission data then enter step g, otherwise do not do and locate in case of abnormal
Manage return step e；
G. start optical communication capabilities, send the data of sensor acquisition, and send wired and wireless communication failure signal, simultaneously
Enter step c.
2. a kind of communication device of the underground according to claim 1 with emergency optical communication capabilities, it is characterised in that: described
The light that light-emitting component issues includes the light of various colors or the naked eyes black light of infrared ray.
3. a kind of communication device of the underground according to claim 1 with emergency optical communication capabilities, it is characterised in that: described
Sensor communication interfaces, communication mode include I2C communication, RS485 communication, RS232 communication, Bluetooth communication, infrared communication or nothing
Line digital transmission communication.
4. a kind of communication device of the underground according to claim 1 with emergency optical communication capabilities, it is characterised in that: described
The bright coding mode secretly changed of light-emitting component includes indicating binary number with different bright dark length of time.
5. a kind of communication device of the underground according to claim 1 with emergency optical communication capabilities, it is characterised in that: described
The coding mode of light-emitting component color change includes indicating binary number with different colors.
6. a kind of communication device of the underground according to claim 1 with emergency optical communication capabilities, it is characterised in that: described
The coding mode of light-emitting component flicker frequency includes indicating binary number with different flicker frequencies.
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN111970055A (en) * | 2020-07-31 | 2020-11-20 | 贝分科技（杭州）有限公司 | Infrared communication stability and anti-interference based improving method |
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| CN108798787A (en) * | 2018-07-25 | 2018-11-13 | 山东精诚电子科技有限公司 | Coal mine safety monitoring system based on LoRa and method |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111970055A (en) * | 2020-07-31 | 2020-11-20 | 贝分科技（杭州）有限公司 | Infrared communication stability and anti-interference based improving method |
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