CN108798787A - Coal mine safety monitoring system based on LoRa and method - Google Patents
Coal mine safety monitoring system based on LoRa and method Download PDFInfo
- Publication number
- CN108798787A CN108798787A CN201810828250.2A CN201810828250A CN108798787A CN 108798787 A CN108798787 A CN 108798787A CN 201810828250 A CN201810828250 A CN 201810828250A CN 108798787 A CN108798787 A CN 108798787A
- Authority
- CN
- China
- Prior art keywords
- substation
- networking
- wireless
- lora
- acquisition
- 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.)
- Granted
Links
- 238000012544 monitoring process Methods 0.000 title claims abstract description 203
- QVFWZNCVPCJQOP-UHFFFAOYSA-N chloralodol Chemical compound CC(O)(C)CC(C)OC(O)C(Cl)(Cl)Cl QVFWZNCVPCJQOP-UHFFFAOYSA-N 0.000 title claims abstract description 190
- 239000003245 coal Substances 0.000 title claims abstract description 40
- 238000000034 method Methods 0.000 title claims abstract description 22
- 230000006855 networking Effects 0.000 claims abstract description 273
- 238000004891 communication Methods 0.000 claims abstract description 52
- 239000013307 optical fiber Substances 0.000 claims abstract description 15
- 230000007613 environmental effect Effects 0.000 claims description 67
- 230000011664 signaling Effects 0.000 claims description 26
- 238000007689 inspection Methods 0.000 claims description 19
- 238000012545 processing Methods 0.000 claims description 15
- 230000005540 biological transmission Effects 0.000 claims description 12
- 230000003139 buffering effect Effects 0.000 claims description 12
- 238000012806 monitoring device Methods 0.000 claims description 10
- 230000006870 function Effects 0.000 claims description 8
- 238000000926 separation method Methods 0.000 claims description 8
- WHXSMMKQMYFTQS-UHFFFAOYSA-N Lithium Chemical compound [Li] WHXSMMKQMYFTQS-UHFFFAOYSA-N 0.000 claims description 7
- 229910052744 lithium Inorganic materials 0.000 claims description 7
- 238000003860 storage Methods 0.000 claims description 7
- 238000009826 distribution Methods 0.000 claims description 6
- 238000009434 installation Methods 0.000 claims description 4
- 230000008569 process Effects 0.000 claims description 4
- 230000009471 action Effects 0.000 claims description 3
- 238000012790 confirmation Methods 0.000 claims description 3
- 238000000605 extraction Methods 0.000 claims description 3
- 238000011065 in-situ storage Methods 0.000 claims description 3
- 239000003595 mist Substances 0.000 claims description 3
- 230000000737 periodic effect Effects 0.000 claims description 3
- 230000009466 transformation Effects 0.000 claims description 3
- 230000005611 electricity Effects 0.000 claims 1
- VNWKTOKETHGBQD-UHFFFAOYSA-N methane Chemical compound C VNWKTOKETHGBQD-UHFFFAOYSA-N 0.000 abstract description 22
- 238000005516 engineering process Methods 0.000 abstract description 18
- 238000005065 mining Methods 0.000 abstract description 4
- 238000010586 diagram Methods 0.000 description 6
- UGFAIRIUMAVXCW-UHFFFAOYSA-N Carbon monoxide Chemical compound [O+]#[C-] UGFAIRIUMAVXCW-UHFFFAOYSA-N 0.000 description 5
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 5
- 229910002091 carbon monoxide Inorganic materials 0.000 description 5
- 229910052760 oxygen Inorganic materials 0.000 description 5
- 239000001301 oxygen Substances 0.000 description 5
- 239000000779 smoke Substances 0.000 description 5
- 239000007789 gas Substances 0.000 description 4
- 238000004519 manufacturing process Methods 0.000 description 3
- 230000000630 rising effect Effects 0.000 description 3
- 230000008901 benefit Effects 0.000 description 2
- 238000012360 testing method Methods 0.000 description 2
- 241001269238 Data Species 0.000 description 1
- 241000209466 Platanus Species 0.000 description 1
- 238000004458 analytical method Methods 0.000 description 1
- 238000013480 data collection Methods 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 230000004927 fusion Effects 0.000 description 1
- 238000005304 joining Methods 0.000 description 1
- 230000014759 maintenance of location Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000008054 signal transmission Effects 0.000 description 1
- 238000001228 spectrum Methods 0.000 description 1
- 239000000725 suspension Substances 0.000 description 1
Classifications
-
- 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
Landscapes
- Engineering & Computer Science (AREA)
- Mining & Mineral Resources (AREA)
- Life Sciences & Earth Sciences (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Geochemistry & Mineralogy (AREA)
- Geology (AREA)
- Arrangements For Transmission Of Measured Signals (AREA)
Abstract
The invention discloses a kind of coal mine safety monitoring system and method based on LoRa, belongs to safety monitoring technology field, the technical problem to be solved in the present invention is：How the combining wireless communication technology realizes the communication of underground coal mine last one kilometer, realizes that real time monitoring is implemented in region that goaf, the methane gas such as fully-mechanized mining working are largely assembled, the technical solution used for：Its structure includes that surface-monitoring equipment, ground network interchanger, downhole network interchanger, wired networking module, outstation and LoRa wirelessly network module, surface-monitoring equipment passes through optical fiber or twisted pair line connection ground network interchanger, ground network interchanger passes through optical fiber or twisted pair line connection outstation, outstation connects wired networking module by substation CAN bus or 485 bus of substation, and outstation connects LoRa by LoRa Wi-Fis and wirelessly networks module.The coal mine safety monitoring method based on LoRa that the invention also discloses a kind of.
Description
Technical field
The present invention relates to safety monitoring technology field, specifically a kind of coal mine safety monitoring system based on LoRa and
Method.
Background technology
Coal mine downhole safety monitoring system is for being detected to underground coal mine environmental parameter, by joining to test environment
Several analysis and compare, for production, cammander provides the technical data prevented accident, convenient for taking the precautionary measures in advance；Coal mine
Lower safety monitoring system system timely automated can be alarmed, power off and be latched when accident occurs, and the generation or expansion of accident are prevented
Greatly；The disaster relief and prompt of taking refuge can be quickly and efficiently provided after generation accident simultaneously.For the more safe of coal mine and efficiently,
The covering of one test point is wide, the flexible safety monitoring system of deployment is essential, but coal mine downhole safety used at present
Monitoring system is in underground part mostly using wired signal transmission form so that coal mine downhole safety monitoring system can only
It is deployed in specific position, mobility is poor, and the difficulty of equipment installation is larger, causes to can not achieve real-time prison in many places
Control.
Certainly place can not be covered by also having many coal mines to also use some Radio Transmission Technologys solution wire cable at present
Data collection task, generally use the Radio Transmission Technologys such as WaveMesh, Zigbee, Wi-Fi, RFID, but these technologies are all
Belong to local area network technology, the characteristics of technology determines closer and anti-interference in the severe underground coal mine transmission range of electromagnetic environment
Performance is poor, cannot achieve more satisfactory Long-range Data Transmission.According to the work characteristics of coal face, to reach
It is experienced to more satisfactory data acquisition, wireless communication distance at least needs 1KM, this is also often to be said in colliery industry
The problem of last one kilometer.In conclusion there are the following problems for coal mine downhole safety monitoring system：
（One）, existing coal mine downhole safety monitoring system due to dispose dumb of wired monitoring and select Radio Transmission Technology
Apart from too short limitation, flexible and comprehensive real-time security monitoring cannot achieve；
（Two）, since the on-site monitoring equipment of different system lacks unified communication protocol, leading to not at the scene will not homology
The data of the monitoring device of system are merged, can only be by carrying out system globe area work at ground-based server end, due to multisystem
The forwarding of server and data fusion, reduce the real-time of monitoring system, and each due to each system sub-station equipment in scene
From the state for war, field control accuracy and promptness is caused to substantially reduce；
（Three）, since on-site monitoring equipment can not all access the same outstation, cause the control of existing substation grade can only be single
Pure is controlled accordingly by threshold values, for example it is the operation that powered off and alarmed that gas density, which is more than 1.0, can not be carried out pre-
Sentence and flexibly controls.
With the development of technology of Internet of things, simultaneous wide-area communication network 4G gradually appears one to 5G evolution process
Large quantities of low-power consumption wide area networks（LPWAN, Low Power Wide Area Network）The communication technology, such as：LoRa, NB_IOT,
SigFox, NWave, Telensa, Platanus and Weightless, LoRa technologies communication distance, power consumption, hardware cost,
Disposing all has very high advantage on difficulty, technical standard and industrialization level, will necessarily be in increasingly fierce Wide Area Netweork
Important one seat is occupied in competition.In conclusion therefore how the combining wireless communication technology realize underground coal mine last
The communication of kilometer realizes that the region implementation real time monitoring that the methane gas such as goaf, fully-mechanized mining working are largely assembled is current urgency
The technical issues of need to solving.
Invention content
The present invention technical assignment be to provide a kind of coal mine safety monitoring system and method based on LoRa, come solve how
The combining wireless communication technology realizes the communication of underground coal mine last one kilometer, realizes the methane gas such as goaf, fully-mechanized mining working
Implement the problem of real time monitoring in the region largely assembled.
The technical assignment of the present invention realizes in the following manner, the coal mine safety monitoring system based on LoRa, including ground
Face monitoring device, ground network interchanger, downhole network interchanger, wired networking module, outstation and LoRa wirelessly connect
Net module, surface-monitoring equipment pass through optical fiber by optical fiber or twisted pair line connection ground network interchanger, ground network interchanger
Or twisted pair line connection outstation, outstation connect wired networking module, prison by substation CAN bus or 485 bus of substation
Control substation connects LoRa by LoRa Wi-Fis and wirelessly networks module；
LoRa wirelessly network module include at least one collector, several wireless environment sensors, several wireless devices switch shape
State sensor, several wireless control class equipment and several hand-held mobile terminals, outstation and collector and collector with
By acquiring CAN bus connection, wireless environment sensor, wireless device on off state sensor and wireless controlled between collector
Class equipment processed passes through LoRa wireless network connections outstation or collector, wireless environment sensor, wireless device switch respectively
State sensor and wireless control class equipment connect hand-held mobile terminal by 2.4G RFID or blue tooth radio network respectively.
Wherein, hand-held mobile terminal is using application No. is a kind of 201520065746 entitled technical grade hands with inspection function
Hold terminal.
Preferably, the wireless environment sensor includes environmental sensor and wireless networked devices, environmental sensor is logical
It crosses networking CAN interface, 485 bus interface of networking or networking TTL serial line interfaces and connects wireless networked devices；
Wireless device on off state sensor includes facility switching state sensor and wireless networked devices, and facility switching state passes
Sensor connects wireless networked devices by networking switch amount signaling interface；
Wireless wireless control class equipment includes control class equipment and wireless networked devices, and control class equipment passes through the breakpoint control that networks
Signaling interface connects wireless networked devices；
For wireless networked devices by LoRa wireless network connections outstation or collector, wireless networked devices pass through 2.4G
RFID or blue tooth radio network connect hand-held mobile terminal.Wherein, environmental sensor includes oxygen sensor, carbon monoxide sensing
Device, methane transducer, wind direction and air velocity transducer, smoke sensor device, bolt stress sensor, roof separation indicator etc.；Methane passes
Sensor connects wireless networked devices by 485 bus interface that network, and bolt stress sensor is connected by the CAN interface that networks
Wireless networked devices, roof separation indicator connect wireless networked devices by the TTL serial line interfaces that network；Facility switching state sensor
Including equipment start-stop state sensor and latch switch, equipment start-stop state sensor is connected by networking switch amount signaling interface
Wireless networked devices, control class equipment include circuit breaking controller, and circuit breaking controller is connected by the power down control signal interface that networks
Wireless networked devices.
Preferably, the wireless networked devices include networking master controller, access in radio unit, wirelessly network unit,
Network RTC Real Time Clock batteries, networking power module, 485 transceivers of networking, networking CAN transceiver and networking EEPROM storages
Module, networking master controller are separately connected wired access unit, the unit that wirelessly networks, networking EEPROM memory modules, networking RTC
Real Time Clock battery, networking RTC Real Time Clock batteries are used to ensure the continuous work of clock；
Wireless networking unit includes networking unit and routing inspection unit, and networking unit includes networking LoRa wireless modules and networking WIFI
Wireless module, networking master controller connect networking LoRa wireless modules and networking WiFi wireless modules by the serial ports that networks respectively,
LoRa wireless modules and networking WiFi wireless modules network for realizing the wireless networking of monitoring device, realizes the reality of monitoring device
When wireless monitor；Routing inspection unit includes networking bluetooth radio module and networking 2.4G RFID modules, and networking master controller leads to respectively
Cross networking serial ports connection networking bluetooth radio module and networking 2.4G RFID modules, networking bluetooth radio module and networking 2.4G
Wireless networking of the RFID module for network master controller and hand-held mobile terminal；
Access in radio unit includes 485 bus interface of networking, networking CAN interface, networking TTL serial line interfaces, networking power-off
Signaling interface and networking switch amount signaling interface are controlled, networking master controller passes through 485 buses connection networking, 485 transmitting-receiving that networks
Device, 485 transceivers of networking draw 485 bus interface of networking；The master controller that networks is received by the CAN bus connection networking CAN that networks
Device is sent out, networking CAN transceiver draws networking CAN interface；The master controller that networks is serial by the serial ports extraction networking TTL that networks
Interface, networking master controller draw networking power down control signal interface by the power down control signal line that networks, and network master controller
Networking switch amount signaling interface is drawn by networking switch amount signal wire.
Networking power module is electrically connected networking master controller, 485 transceivers of networking, networking CAN transceiver, networking
LoRa wireless modules, networking WiFi wireless modules, networking bluetooth radio module and networking 2.4G RFID modules are powered for it.
Preferably, the wireless networked devices further include software systems, software systems include access unit configuration module,
Radio-cell configuration module, data protocol parsing and order retransmission unit；
Wherein, access unit configuration module selects the interface of wired connection, has for realizing the configuration to access in radio unit
The interface of line access unit includes 485 bus interface of networking, networking CAN interface, networking TTL serial line interfaces, networking power-off
Control signaling interface and networking switch amount signaling interface；Radio-cell configuration module is matched for realizing to the unit that wirelessly networks
It sets, selects the mode of wireless connection, the wireless mode for networking unit includes LoRa wireless networks, WiFi wireless networks, bluetooth
Wireless network and 2.4G RFID networks；Data protocol parses and order retransmission unit according to protocol realization to wired for connecing
Enter the parsing for the data that unit receives, and be transmitted to wireless networking unit, and the order that wireless networking unit receives is led to
Agreement and access in radio unit forwards are crossed to environmental sensor, facility switching state sensor and control class equipment.
Preferably, the outstation include substation master controller, substation submaster controller, substation 2.4G RFID modules,
485 transceiver of substation, substation ethernet module, substation CAN transceiver one, substation CAN transceiver two, substation display, substation
Flash memory modules, substation RTC stand-by power supplies, substation power module, substation power down control signal interface, substation switching value letter
Number interface and seven substation LoRa modules；
Substation master controller connects substation submaster controller and substation 2.4G RFID modules by substation serial ports respectively；
Substation master controller connects 485 transceiver of substation by 485 bus of substation, and 485 transceiver of substation draws 485 bus of substation
Interface, 485 bus interface of substation receive various under 485 transceiver of substation for accessing in the monitoring network of 485 bus of substation
The information of sensor；
Substation master controller stores mould by substation SPI connection substations ethernet module, substation display and substation Flash respectively
Block；Substation ethernet module draws substation RJ45 network interfaces, and substation RJ45 network interfaces are made by twisted pair line connection downhole network interchanger
Its access industrial looped network；
Substation master controller connects substation CAN transceiver one and substation CAN transceiver two, substation by substation CAN bus respectively
CAN transceiver one draws substation CAN interface one, and substation CAN interface one accesses the monitoring network of substation CAN bus
In, receive the various sensor informations of substation CAN transceiver once；Substation CAN transceiver two draws substation CAN interface
Two, substation CAN interface two is connected collector by way of point-to-point connection, realized for accessing substation CAN bus
The increase of LoRa wireless coverages；
Substation submaster controller is separately connected seven substation LoRa modules, substation LoRa modules and substation 2.4G by substation serial ports
Substation antenna is both provided in RFID module；Seven substation LoRa module assignments channels 0 arrive 6 seven channels of channel, pass through seven
Channel and the load capacity for increasing LoRa wireless networks by way of dividing timesharing, build LoRa wireless sensor networks, receive
The area locating information and precise location information that personal scheduling positioning terminal is sent；
Substation master controller connects substation power down control signal interface by substation power down control signal line；Substation master controller is logical
Cross substation on-off model line connection substation on-off model interface；
Substation master controller connects substation RTC stand-by power supplies, the real-time clock that substation RTC stand-by power supplies are used to ensure to transmit substation
Continuous service；Substation power module is electrically connected substation master controller, substation submaster controller, substation 2.4G RFID modules, divides
It stands 485 transceivers, substation ethernet module, substation CAN transceiver one, substation CAN transceiver two, substation display and substation
LoRa modules are powered for it.
Preferably, the collector include acquisition master controller, acquisition submaster controller, acquisition CAN transceiver one,
It acquires CAN transceiver two, 485 transceivers one of acquisition, 485 transceivers two of acquisition, acquisition power module, acquisition Flash and stores mould
Block and seven acquisition LoRa modules；
Master controller is acquired by acquiring serial ports connection acquisition submaster controller；
Acquisition master controller is separately connected acquisition CAN transceiver one and acquisition CAN transceiver two, acquisition by acquiring CAN bus
CAN transceiver one draws acquisition CAN interface one, the monitoring network of the acquisition access acquisition CAN bus of CAN interface one
In, receive the various sensor informations of acquisition CAN transceiver once；It acquires CAN transceiver two and draws acquisition CAN interface
Two, acquisition CAN interface two is connected collector by way of point-to-point connection, realized for accessing acquisition CAN bus
The increase of LoRa wireless coverages；
Acquisition master controller is separately connected 485 transceiver one of acquisition and 485 transceivers two of acquisition, acquisition by acquiring 485 buses
485 transceivers one draw 485 bus interface one of acquisition, and 485 transceivers two of acquisition draw 485 bus interface two of acquisition；
It acquires master controller and acquires Flash memory modules by acquiring SPI connections, acquisition Flash memory modules are fixed for storing
Position information and system command；
Acquisition submaster controller is separately connected seven acquisition LoRa modules, seven acquisition LoRa module assignment channels by acquiring serial ports
0 arrives 6 seven channels of channel, increases the load capacity of LoRa wireless networks by way of seven channels and by frequency dividing timesharing,
LoRa wireless sensor networks are built, reception staff dispatches the area locating information and precise location information that positioning terminal is sent, adopts
It is provided with acquisition antenna in collection LoRa modules；
Acquisition power module is electrically connected acquisition master controller, acquisition submaster controller, acquisition LoRa modules, 485 transmitting-receiving of acquisition
Device one, 485 transceivers two of acquisition, acquisition CAN transceiver one and acquisition CAN transceiver two are powered for it.
Preferably, the hand-held mobile terminal connects outstation, hand-held mobile terminal by LoRa bluetooth middlewares
LoRa bluetooth middlewares are connected by blue tooth radio network, LoRa bluetooth middlewares pass through the monitoring point of LoRa wireless network connections
It stands；
LoRa bluetooth middlewares include intermediate LoRa wireless modules, intermediate Bluetooth module, intermediate master controller, intermediate lithium battery and
Intermediate power supplies management module, intermediate master controller connect intermediate LoRa wireless modules and intermediate Bluetooth mould by intermediate serial ports respectively
Block；Intermediate lithium battery connects intermediate power supplies management module, intermediate power supplies management module be electrically connected intermediate LoRa wireless modules,
Intermediate Bluetooth module and intermediate master controller are powered for it.
Preferably, the surface-monitoring equipment include computer, audible-visual annunciator, printer, data acquisition server,
Safety monitoring system server, privately owned Cloud Server and public Cloud Server, computer, audible-visual annunciator, printer, data are adopted
Collect server, safety monitoring system server, privately owned Cloud Server and public Cloud Server respectively to connect by optical fiber or twisted-pair feeder
The ground plane network switch；
Wired networking module includes cable environment sensor, wireline equipment on off state sensor and has line traffic control class equipment, is had
Thread environment sensor connects outstation by 485 bus of substation or substation CAN bus, and wireline equipment on off state sensor is logical
Substation on-off model line connection outstation is crossed, has line traffic control class equipment to power off the connection monitoring of controlled quentity controlled variable signal wire by substation
Substation.Wherein, oxygen sensor, carbon monoxide transducer, methane transducer, wind direction and air velocity transducer, smoke sensor device point
Outstation is not connected by 485 bus of substation or substation CAN bus；Equipment start-stop state sensor and latch switch lead to respectively
Cross substation on-off model line connection outstation；It includes circuit breaking controller to have line traffic control class equipment, and circuit breaking controller is by dividing
Power-off controlled quentity controlled variable signal wire of standing connects outstation.
Coal mine safety monitoring method based on LoRa, this method are as follows：
S1, outstation obtain monitoring data：Live cable and the environmental sensor device being transformed by wireless networked devices,
Facility switching state sensor and the polling period that set according to safety monitoring system of control class equipment, actively or passively on
Monitoring data is passed to outstation；
S2, outstation carry out analyzing processing and upload to monitoring data：After outstation receives monitoring data, pass through edge
It calculates and pre-set threshold value alarming value carries out analyzing processing, and the monitoring data handled through edge calculations is passed through on industrial looped network
It is transmitted to data acquisition server；
S3, safety monitoring system server handle monitoring data：Data acquisition server receives outstation transmission
Monitoring data after, data buffering is carried out to monitoring data and separation is stored, and responds the subscription of safety monitoring system server
Service, safety monitoring system server is sent to by monitoring data；
After safety monitoring system server receives monitoring data, by GIS figures show current underground site environmental parameter and
Equipment operation condition, and calculated by expert system built in safety monitoring system server, mist, the means of threshold values early warning are to prison
Control data are handled, and realize early warning and warning function；
S4, the storage of cloud service data and service：Safety monitoring system server is uploaded to monitoring data by Ethernet privately owned
Cloud Server and public Cloud Server, privately owned Cloud Server and public Cloud Server according to the mode of cloud computing to monitoring data into
Row analyzing processing, obtain safe early warning as a result, and by cloud service provide the monitoring system value-added service based on the ends web or APP,
Such as：Realize that the operating condition for consulting underground safety monitoring system on the spot at any time and real-time environmental parameter and equipment run feelings
Condition；
S5, safety monitoring system server issue control command：Safety monitoring system server is according to early warning and alarm and people
Control command is sent in order to control, outstation is sent to after being forwarded via data acquisition server, and outstation passes through cable network
Control command environmental sensor device, facility switching state sensor and control class is sent to wireless LoRa networks to set
It is standby, after environmental sensor device, facility switching state sensor and control class equipment receive, equipment is carried out according to control command
Switching manipulation；
S6, environmental sensor device, facility switching state sensor and the installation of control class equipment and registration and management, specifically
It is as follows：
S601, wireless environment sensor device, wireless device on off state sensor and wireless control class equipment are divided to monitoring
It stands or collector asks for the channel time slot coordinate codes of LoRa communications, after success to be allocated, outstation can be in list of devices
Increase corresponding environmental sensor device, facility switching state sensor and control class equipment, and new registration information can be led to
It crosses Industrial Ethernet and is uploaded to data acquisition server；
Environmental sensor device, the facility switching state sensor that S602, data acquisition server can be uploaded according to outstation
And when control class facility registration information the device id that carries tell environmental sensor device, facility switching state sensor with
And control class equipment relevant sources information, carry out environmental sensor device, facility switching state sensor and control class equipment
Registration, and submit to safety monitoring system server and check and manage；
S603, the environmental sensor device for being uploaded for a long time without information, facility switching state sensor and control class equipment,
Data acquisition server can send out equipment fault prompt, if the equipment is deactivated or replaces, artificially pass through security monitoring system
System server carries out selection confirmation, realizes that equipment deletes replacement operation；
S7, wireless networked devices carry out existing equipment transformation, specific as follows：
S701, according to environmental sensor device, facility switching state sensor and control class equipment wired connection mode and
Communication protocol carries out the relevant configuration of embedded software, specific as follows：
S7011, wired configuration is carried out according to selection wired connection mode：
If 1., one or more of wired connection selection substation 485 bus, substation CAN bus and Serial Port Line, to wireless
485 bus interface of networking, networking CAN interface and networking TTL serial line interfaces in networked devices carry out baud rate, mark
The configuration of position, stop position relevant parameter；
If 2., wired connection select substation on-off model line, to the networking switch amount signaling interface in wireless networked devices
It is configured and selects access pin；
If 3., wired connection select substation power down control signal line, in wireless networked devices networking break point control signal
Interface is configured and selects output controlling switch；
S7012, data protocol parsing and order retransmission unit are selected according to communication protocol：
If 1., communication protocol select 485 communications protocol, CAN communication agreement, one or more of serial port communicating protocol, root
The parsing for receiving data and the generation for sending order are realized according to communications protocol；
If 2., communication protocol selecting switch amount signal communication agreement, the meaning of configuration switch state；
If 3., communication protocol select power down control signal communications protocol, configure power-off control default conditions and action form；
S7013, radio configuration is carried out according to the wireless network connecting mode of selection：
If 1., wireless network connecting mode selection LoRa wireless networks and WiFi wireless networks, by wireless networked devices exist
Line uploads data；
If 2., wireless network connecting mode selection blue tooth radio network and 2.4G RFID networks, wireless networked devices need to be by period reality
The acquisition of existing facility information is simultaneously stored into networking EEPROM memory modules, and will networking when hand-held mobile terminal passes by
Historical data in EEPROM memory modules is sent.
S702, after completing embedded software relevant configuration, the exclusive firmware of equipment is generated after compiled, downloads to wireless networking
In device, by environmental sensor device, facility switching state sensor and control class equipment with wireless networked devices by having
Line signal wire connects, and environmental sensor device, facility switching state sensor and control class equipment are filled with wireless networking
Enter working condition after setting energization；
S703, the wireless mode configured according to wireless connection device select corresponding information to upload path, complete by wireless network
At the upload of information, the real time monitoring of mine underground monitoring system is realized；Wherein, the wireless mode of wireless connection device configuration includes
Following content：
If the wireless mode of S7031, wireless networked devices configuration are the real-time networking of LoRa wireless networks or WiFi wireless networks
Pattern, then after receiving the information that environmental sensor device, facility switching state sensor and control class equipment send over,
Safety monitoring system server is sent to by wireless network immediately；
If the wireless mode of S7302, wireless networked devices configuration are the inspection networking of blue tooth radio network or 2.4G RFID networks
Pattern, then wireless networked devices can periodic storage environment sensor device, facility switching state sensor and control class
The information that equipment sends over, and historical data is uploaded into hand-held mobile terminal when hand-held mobile terminal passes through, it holds and moves
Dynamic terminal uploads to safety monitoring system server after completing inspection by WiFi or 3G, 4G network.
Preferably, outstation obtains monitoring data in the step S1, it is specific as follows：
Substation master controller sends inspection signal by 485 bus interface of substation in S101, outstation, and collector, which receives, to patrol
It examines after signal to lower forwarding, the environmental sensor in 485 bus of substation is according to modbus agreements（Do not limit communications protocol）It reports
Monitoring data, collector receive the message information that environmental sensor reports, forward up to outstation；
S102, collector acquisition CAN transceiver two receive monitoring data, pass through after buffering and acquire CAN transceiver one and forward
To higher level's collector and outstation, the substation CAN interface one and substation CAN interface two of outstation receive bus
The monitoring data that the environmental sensor and collector of upper carry upload；
The channel and time slot of the substation submaster controller and acquisition submaster controller control LoRa networks of S103, outstation and collector
LoRa network communications are realized in the distribution of coordinate code, and it is wireless that outstation or collector receive the LoRa that wireless networked devices are sent
Data：
If 1., collector receive the data that wireless networked devices are sent, then be transmitted to outstation by acquiring CAN bus；
Substation on-off model interface on S104, outstation and substation power down control signal interface equipment start-stop state
With power down control signal data；
S105,485 bus of substation by outstation, substation CAN bus, substation LoRa modules, substation on-off model
Line, substation power down control signal line realize monitoring data in outstation region, are deposited into substation Flash memory modules buffering
Afterwards, then by substation ethernet module it uploads in data acquisition server；
After S106, data acquisition server receive monitoring data buffering, safety monitoring system service is transmitted to according to subscription service
Device realizes security monitoring function；
Safety monitoring system server issues control command in the step S5, specific as follows：
S501, safety monitoring system server generate control command to control class equipment（Circuit breaking controller）Control command is sent,
It is as follows that specific instructions issue flow：
Control command is sent to by optical fiber or twisted-pair feeder through ground network interchanger by S5011, safety monitoring system server
Data acquisition server, data acquisition server by ground network interchanger, downhole network group of switches at industrial looped network
It is transmitted to outstation；
S5012, outstation parse the control command received, corresponding control signal are generated, inside outstation
List of devices, selection control signal issue path, and outstation passes through 485 bus of substation, substation CAN bus, the substation amount of opening the light
The each equipment of signal wire and substation power down control signal line into wired networking module sends control command, while monitoring and dividing
It stands and control signal is handed down to collector by acquiring CAN bus, collector is filled by LoRa wireless networks via wireless networking
It sets the equipment wirelessly to network to LoRa in module and sends control command；
S502, outstation in-situ processing：Outstation is alarmed threshold values, generates warning information by way of edge calculations, and
Control command is sent to control class equipment, detailed process is as follows：
S5021, outstation power off controlled quentity controlled variable by 485 bus of substation, substation CAN bus, substation on-off model line, substation
Signal wire and the monitoring data of LoRa wireless networks acquisition, give warning in advance or pre- in real time by threshold values according to edge calculations mode
It is alert, generate pre-warning signal；
S5022, outstation generate corresponding control signal, outstation passes through substation according to preset emergency processing strategy
485 buses, substation CAN bus, the substation amount of opening the light signal wire and substation power down control signal line are into wired networking module
Each equipment sends control command, while outstation is handed down to collector, collector by acquiring CAN bus by signal is controlled
The each equipment wirelessly to be networked to LoRa in module via wireless networked devices by LoRa wireless networks sends control command.
The coal mine safety monitoring system based on LoRa and method of the present invention has the following advantages：
（One）, the present invention nothing that wireless networked devices realize safety monitoring system is passed through by the deployment of LoRa wireless networks
Line is transformed, and realizes and is flexibly disposed with comprehensive safety supervisory network；Solves underground coal mine most by LoRa radio network techniques
The network covering problem of latter kilometer realizes that the region that the methane gas such as goaf, fully-mechanized mining working are largely assembled is implemented in real time
The all standing of network in mine is realized in monitoring, it is ensured that without monitoring blind area in mine, substantially increases the safety in mine；
（Two）, based on outstation pass through the regional environment of substation 485 bus and substation CAN bus and LoRa wireless networks
Parameter, using the thinking of edge calculations, the variation tendency based on environmental parameter realizes early warning and warning function, improves safety prison
The ability of control system autonomous intelligence early warning when with server suspension, while monitoring point can be reduced according to local estimate of situation
The quantity stood to safety monitoring system server transmission data improves data transmission bauds and the promptness of issue handling；
（Three）, current live wired monitoring device management be to be managed in such a way that outstation IP adds port numbers,
The equipment that 485 bus of substation is connected with substation CAN bus is managed in such a way that port numbers add bus address, and it is right
In the LoRa wireless sensor networks built by collector, be identified by way of a set of unique device id distribution and
Management, device id carry production country origin, production firm, product type, name of product, product identification, it is ensured that various kinds of equipment
Orderly management can be carried out；
（Four）, LoRa as the new technique shown one's talent in numerous low-power consumption wan technologies, by means of his uniqueness
Linear spread-spectrum modulation technique, the up to link budget of 157dB can help it to be obtained in the electromagnetic environment of underground coal mine complexity
Considerable communication distance is obtained, therefore the LoRa communication technologys are to solve the communication of underground coal mine last one kilometer to make tremendous contribution.
Description of the drawings
The following further describes the present invention with reference to the drawings.
Attached drawing 1 is the coal mine safety monitoring system structure diagram based on LoRa；
Attached drawing 2 is the structure diagram of outstation；
Attached drawing 3 is the structure diagram of collector；
Attached drawing 4 is the structure diagram of wireless networked devices；
Attached drawing 5 is the structure diagram of the software systems of wireless networked devices；
Attached drawing 6 is the structure diagram of LoRa bluetooth middlewares.
In attached drawing 1：1, ground network interchanger, 2, outstation, 3, collector, 4, downhole network interchanger, 5, wired
Network module, 6, LoRa wirelessly network module, 7, optical fiber/twisted-pair feeder, 8, wireless networked devices, 9, hand-held mobile terminal, 10, private
There is a Cloud Server, 11, public Cloud Server, 12, oxygen sensor, 13, carbon monoxide transducer, 14, methane transducer, 15,
Wind direction and air velocity transducer, 16, smoke sensor device, 17, bolt stress sensor, 18, roof separation indicator, 19, equipment start-stop shape
State sensor, 20, latch switch, 21, computer, 22, audible-visual annunciator, 23, printer, 24, data acquisition server, 25,
Safety monitoring system server, 26, circuit breaking controller, 27, LoRa bluetooth middlewares；
In attached drawing 2：2-1, substation master controller, 2-2, substation submaster controller, 2-3, substation 2.4G RFID modules, 2-4, substation
485 transceivers, 2-5, substation ethernet module, 2-6, substation CAN transceiver one, 2-7, substation CAN transceiver two, 2-8, substation
Power down control signal line, 2-9, substation display, 2-10, substation Flash memory modules, 2-11, substation LoRa modules, 2-12,
Substation serial ports, 2-13, substation SPI, 2-14, substation CAN bus, 2-15,485 bus interface of substation, 2-16, substation RJ45 nets
Mouthful, 2-17, substation CAN interface one, 2-18, substation CAN interface two, 2-19, substation antenna, 2-20, substation RTC are standby
With power supply, 2-21, substation power module, 2-22, substation power down control signal interface, 2-23,485 bus of substation, 2-24, substation
On-off model line, 2-25, substation on-off model interface；
In attached drawing 3：3-1, acquisition master controller, 3-2, acquisition submaster controller, 3-3, acquisition CAN transceiver one, 3-4, acquisition CAN
Transceiver two, 3-5, acquisition Flash memory modules, 3-6, acquisition CAN bus, 3-7, acquisition LoRa modules, 3-8, acquisition serial ports,
3-9, acquisition CAN interface one, 3-10, acquisition CAN interface two, 3-11, acquisition SPI, 3-12, acquisition power module,
3-13, acquisition antenna, 3-14,485 buses of acquisition, 3-15,485 transceivers one of acquisition, 3-16,485 transceivers two of acquisition, 3-
17,485 bus interface one, 3-18,485 bus interface two of acquisition are acquired；
In attached drawing 4,5 and 6：6-1, networking master controller, 6-2, access in radio unit, 6-3, wirelessly network unit, 6-4, networking
EEPROM memory modules, 6-5, networking unit, 6-6, routing inspection unit, 6-7, networking LoRa wireless modules, 6-8, networking bluetooth without
Wire module, 6-9, networking WIFI wireless modules, 6-10, networking 2.4G RFID modules, 6-11, networking I2C, 6-12, networking string
Mouthful, 6-13,485 bus interface of networking, 6-14, networking CAN interface, 6-15, networking TTL serial line interfaces, 6-16, networking are disconnected
Electric control signal interface, 6-17, networking switch amount signaling interface, 6-18,485 transceivers of networking, 6-19, networking CAN transceiver,
6-20,485 buses of networking, 6-21, networking CAN bus, 6-22, networking power down control signal line, 6-23, networking switch amount signal
Line, 6-24, networking RTC Real Time Clock batteries, 6-25, networking power module, 6-26, networking LDO chips, 6-27, DC-DC core
Piece, 6-28, centre LoRa wireless modules, 6-29, intermediate Bluetooth module, 6-30, intermediate master controller, 6-31, intermediate lithium battery,
6-32, intermediate power supplies management module, 6-33, intermediate serial ports, 6-34, access unit configuration module, 6-35, radio-cell configure mould
Block, 6-36, data protocol parsing and order retransmission unit.
Specific implementation mode
With reference to Figure of description and specific embodiment to the coal mine safety monitoring system and method based on LoRa of the invention
It is described in detail below.
Embodiment：
As shown in Fig. 1, the coal mine safety monitoring system of the invention based on LoRa, structure include surface-monitoring equipment,
Torus network interchanger 1, downhole network interchanger 4, wired networking module 5, outstation 2 and LoRa wirelessly network module 8, ground
Face monitoring device connects ground network interchanger 1 by optical fiber or twisted-pair feeder 7, and ground network interchanger 1 passes through optical fiber or multiple twin
Line 7 connects outstation 2, and outstation 2 passes through the 485 wired networking mould of bus 2-23 connections of substation CAN bus 2-14 or substation
Block 5, outstation 2 connect LoRa by LoRa Wi-Fis and wirelessly network module 8；Surface-monitoring equipment include computer 21,
Audible-visual annunciator 22, printer 23, data acquisition server 24, safety monitoring system server 25,10 and of privately owned Cloud Server
Public Cloud Server 11, computer 21, audible-visual annunciator 22, printer 23, data acquisition server 24, safety monitoring system clothes
Device 25, privately owned Cloud Server 10 and public Cloud Server 11 be engaged in respectively by optical fiber or the connection ground network interchanger of twisted-pair feeder 7
1；Wired networking module 5 includes cable environment sensor, wireline equipment on off state sensor and has line traffic control class equipment, wired
Environmental sensor passes through 485 bus 2-23 connections outstation 2 of substation CAN bus 2-14 or substation, wireline equipment on off state
Sensor has line traffic control class equipment to power off controlled quentity controlled variable by substation by substation on-off model line 2-24 connections outstation 2
Signal wire 2-8 connections outstation 2.Wherein, oxygen sensor 12, carbon monoxide transducer 13, methane transducer 14, wind direction and
Air velocity transducer 15, smoke sensor device 16 pass through 485 bus 2-23 connection outstations of substation CAN bus 2-14 or substation respectively
2；Equipment start-stop state sensor 19 connects outstation 2 by substation on-off model line 2-24 respectively with latch switch 20；
It includes circuit breaking controller 26 to have line traffic control class equipment, and circuit breaking controller 26 powers off the 2-8 connections of controlled quentity controlled variable signal wire by substation and supervises
Control substation 2.LoRa wirelessly network module 8 include two collectors 3, several wireless environment sensors, several wireless devices switch
State sensor, several wireless control class equipment and several hand-held mobile terminals 9, outstation 2 and collector 3 and acquisition
By acquiring CAN bus 3-6 connections, wireless environment sensor, wireless device on off state sensor between device 3 and collector 3
And wireless control class equipment is respectively by LoRa wireless network connections outstation 2 or collector 3, wireless environment sensor,
Wireless device on off state sensor and wireless control class equipment connect hand by 2.4G RFID or blue tooth radio network respectively
Hold mobile terminal 9.Wireless environment sensor includes environmental sensor and wireless networked devices 6, and environmental sensor passes through the CAN that networks
Bus interface 6-14,485 bus interface 6-13 of networking or the wireless networked devices of networking TTL serial line interfaces 6-15 connections 6；Wirelessly set
Standby on off state sensor includes facility switching state sensor and wireless networked devices 6, and facility switching state sensor passes through
Networking switch amount signaling interface 6-17 connections are wireless networked devices 6；Wireless wireless control class equipment includes control class equipment and nothing
Line networked devices, control class equipment control the wireless networked devices of signaling interface 6-16 connections 6 by the breakpoint that networks；Wireless networking dress
6 are set by LoRa wireless network connections outstation 2 or collector 3, wireless networked devices 6 by 2.4G RFID or bluetooth without
Line network connection hand-held mobile terminal 9.Wherein, environmental sensor includes oxygen sensor 12, carbon monoxide transducer 13, methane
Sensor 14, wind direction and air velocity transducer 15, smoke sensor device 16, bolt stress sensor 17, roof separation indicator 18 etc.；Methane
Sensor 14 passes through the CAN that networks by the 485 wireless networked devices 6 of bus interface 6-13 connections that network, bolt stress sensor 17
Bus interface 6-14 connections are wireless networked devices 6, roof separation indicator 18 pass through the wireless networking of the TTL serial line interfaces 6-15 connections that network
Device 6；Facility switching state sensor includes equipment start-stop state sensor 19 and latch switch 20, equipment start-stop state sensing
For device 19 by the wireless networked devices 6 of networking switch amount signaling interface 6-17 connections, control class equipment includes circuit breaking controller 26, is broken
Electric controller 26 passes through the wireless networked devices of power down control signal interface 6-16 connections 6 that network.
As shown in Fig. 6, hand-held mobile terminal 9 connects outstation 2 by LoRa bluetooth middlewares 27, holds mobile whole
End 9 connects LoRa bluetooth middlewares 27 by blue tooth radio network, and LoRa bluetooth middlewares 27 pass through LoRa wireless network connections
Outstation 2；LoRa bluetooth middlewares 27 include intermediate LoRa wireless modules 6-28, intermediate Bluetooth module 6-29, intermediate master control
Device 6-30 processed, centre lithium battery 6-31 and intermediate power supplies management module 6-32, intermediate master controller 6-30 pass through intermediate string respectively
The intermediate LoRa wireless modules 6-28 and intermediate Bluetooth module 6-29 of mouth 6-33 connections；Intermediate lithium battery 6-31 connections intermediate power supplies pipe
Module 6-32 is managed, intermediate power supplies management module 6-32 is electrically connected intermediate LoRa wireless modules 6-28, intermediate Bluetooth module 6-
29 and centre master controller 6-30 powers for it.
As shown in Fig. 4, wireless networked devices 6 include networking master controller 6-1, access in radio unit 6-2, wireless networking
Unit 6-3, networking RTC Real Time Clock batteries 6-24, networking power module 6-25,485 transceiver 6-18 of networking, networking CAN are received
Device 6-19 and networking EEPROM memory module 6-4 are sent out, networking master controller 6-1 is separately connected wired access unit 6-2, wirelessly connects
Net unit 6-3, networking EEPROM memory modules 6-4, networking RTC Real Time Clock battery 6-24, networking RTC Real Time Clock batteries 6-
24 continuous work for ensureing clock；Wireless networking unit 6-3 includes networking unit 6-5 and routing inspection unit 6-6, and network unit
6-5 includes networking LoRa wireless modules 6-7 and networking WiFi wireless module 6-9, and networking master controller 6-1 is gone here and there by networking respectively
Mouth 6-12 connections networking LoRa wireless modules 6-7 and networking WiFi wireless module 6-9, network LoRa wireless modules 6-7 and networking
WiFi wireless modules 6-9 realizes the real-time radio monitoring of monitoring device for realizing the wireless networking of monitoring device；Routing inspection unit
6-6 includes networking bluetooth radio module 6-8 and networking 2.4G RFID module 6-10, and networking master controller 6-1 passes through networking respectively
Serial ports 6-12 connections network bluetooth radio module 6-8 and networking 2.4G RFID module 6-10, networking bluetooth radio module 6-8 and
Wireless networkings of the networking 2.4G RFID modules 6-10 for network master controller and hand-held mobile terminal；Access in radio unit 6-2
Including 485 bus interface 6-13 of networking, networking CAN interface 6-14, networking TTL serial line interfaces 6-15, networking power-off control
Signaling interface 6-16 and networking switch amount signaling interface 6-17, networking master controller 6-1 are connected by the 485 bus 6-20 connections that network
485 transceiver 6-18 of net, 485 transceiver 6-18 of networking draw 485 bus interface 6-13 of networking；Networking master controller 6-1 passes through
Network CAN bus 6-21 connections networking CAN transceiver 6-19, networking CAN transceiver 6-19 extraction networking CAN interfaces 6-
14；The master controller 6-1 that networks draws networking TTL serial line interface 6-15 by the serial ports 6-12 that networks, and networking master controller 6-1 passes through
The power down control signal line 6-22 that networks draws networking power down control signal interface 6-16, and the master controller 6-1 that networks is opened by networking
It measures signal wire 6-23 and draws networking switch amount signaling interface 6-17 in pass.Networking power module 6-25 is electrically connected networking main control
Device 6-1,485 transceiver 6-18 of networking, networking CAN transceiver 6-19, networking LoRa wireless modules 6-7, the networking wireless moulds of WiFi
Block 6-9, networking bluetooth radio module 6-8 and networking 2.4G RFID modules 6-10 power for it.Networking power module 6-25 include
Network LDO chips 6-26 and networking DC-DC chip 6-27, and networking LDO chips 6-26 uses AMS1117-3.3, and network DC-DC cores
Piece 6-27 uses LM2596T-5.0/NOPB；The master controller 6-1 that networks uses STM32F407 chips, and network LoRa wireless modules
6-7 uses E32-TTL-100 LoRa chips, networking CAN transceiver 6-19 to use TD321DCANH chips, and network 485 transceivers
6-18 uses TD321D485 chips, networking EEPROM memory modules 6-4 to use W25Q128BV chips, and network bluetooth radio module
6-8 uses low-power consumption bluetooth module.
As shown in Fig. 5, wireless networked devices further include software systems, and software systems include access unit configuration module 6-
34, radio-cell configuration module 6-35, data protocol parsing and order retransmission unit 6-36；Wherein, access unit configuration module
6-34 selects the interface of wired connection, the interface packet of access in radio unit 6-2 for realizing the configuration to access in radio unit
Include 485 bus interface 6-13 of networking, networking CAN interface 6-14, networking TTL serial line interfaces 6-15, networking power-off control letter
Number interface 6-16 and networking switch amount signaling interface 6-17；6-35 is for realizing to the unit that wirelessly networks for radio-cell configuration module
The configuration of 6-3 selects the mode of wireless connection, and the wireless mode for networking unit 6-3 includes LoRa wireless networks, WiFi is wireless
Network, blue tooth radio network and 2.4G RFID networks；Data protocol parses and order retransmission unit 6-36 is used for according to agreement
It realizes the parsing to the access in radio unit 6-2 data received, and is transmitted to wireless networking unit 6-3, and will wirelessly network
The order that unit 6-3 is received is transmitted to environmental sensor by agreement and access in radio unit 6-2, facility switching state passes
Sensor and control class equipment.
As shown in Fig. 2, outstation 2 includes substation master controller 2-1, substation submaster controller 2-2, substation 2.4G
RFID module 2-3,485 transceiver 2-4 of substation, substation ethernet module 2-5, one 2-6 of substation CAN transceiver, substation CAN transmitting-receivings
Two 2-7 of device, substation display 2-9, substation Flash memory modules 2-10, substation RTC stand-by power supplies 2-20, substation power module
2-21, substation power down control signal interface 2-22, substation on-off model interface 2-25 and seven substation LoRa modules 2-11；
Substation master controller 2-1 passes through substation serial ports 2-12 connections substation submaster controller 2-2 and substation 2.4G RFID modules 2-3 respectively；
By 485 bus 2-23 connections substation of substation, 485 transceiver 2-4,485 transceiver 2-4 of substation is drawn to be divided substation master controller 2-1
Stand 485 bus interface 2-15, and 485 bus interface 2-15 of substation is received for accessing in the monitoring network of 485 bus 2-23 of substation
The information of various sensors under 485 transceiver 2-4 of substation；Substation master controller 2-1 passes through substation SPI2-13 connections point respectively
Stand ethernet module 2-5, substation display 2-9 and substation Flash memory modules 2-10；Substation ethernet module 2-5, which is drawn, to be divided
Stand RJ45 network interface 2-16, and substation RJ45 network interfaces 2-16 makes its access industrial looped network by twisted pair line connection downhole network interchanger；
Substation master controller 2-1 passes through one 2-6 of substation CAN bus 2-14 connection substations CAN transceiver and substation CAN transceiver two respectively
2-7, one 2-6 of substation CAN transceiver draw substation CAN interface one 2-17, one 2-17 of substation CAN interface and access substation
In the monitoring network of CAN bus 2-14, the various sensor informations under one 2-17 of substation CAN transceiver are received；Substation CAN transmitting-receivings
Two 2-6 of device draws two 2-18 of substation CAN interface, and two 2-18 of substation CAN interface is for accessing substation CAN bus 2-
14, collector 3 is connected by way of point-to-point connection, realizes the increase of LoRa wireless coverages；Substation submaster controller 2-2
It is separately connected seven substation LoRa module 2-11, substation LoRa modules 2-11 and substation 2.4G RFID by substation serial ports 2-12
Substation antenna 2-19 is mounted on module 2-3；Seven substation LoRa modules 2-11 distribution channels 0 arrive 6 seven channels of channel, lead to
It crosses seven channels and increases the load capacity of LoRa wireless networks by way of dividing timesharing, build LoRa wireless sense networks
Network, reception staff dispatch the area locating information and precise location information that positioning terminal is sent；Substation master controller 2-1 is by dividing
Stand power down control signal line 2-8 connection substation power down control signal interfaces 2-22；Substation master controller 2-1 passes through substation switching value
Signal wire 2-24 connection substation on-off model interfaces 2-25；Substation master controller 2-1 connection substation RTC stand-by power supply 2-20,
The real-time clock continuous service that substation RTC stand-by power supplies 2-20 is used to ensure to transmit substation；Substation power module 2-21 is electric respectively
It connects substation master controller 2-1, substation submaster controller 2-2, substation 2.4G RFID modules 2-3,485 transceiver 2-4 of substation, divide
Stand ethernet module 2-5, one 2-6 of substation CAN transceiver, two 2-7 of substation CAN transceiver, substation display 2-9 and substation LoRa
Module 2-11 powers for it.
Wherein, substation master controller 2-1 and substation submaster controller 2-2 are all made of STM32F407ZET6 chips, substation LoRa
Module 2-11 recalls one hundred special E32-TTL-100 LoRa chips using Chengdu, and substation 2.4G RFID modules 2-3 is used with power amplifier
Read head chip, substation ethernet module 2-5 using the W5500 chips for having hardware protocol stacks, one 2-6 of substation CAN transceiver and point
Two 2-7 of CAN transceiver of standing is all made of the TD321DCANH chips of golden rising Yang, the 485 golden rising Yang of transceiver 2-4 selections of substation
TD321D485 chips, substation display 2-9 use 3.5 cun of LCD screens, substation Flash memory modules 2-10 use capacity for
The W25Q128BV chips of 128MB, substation RTC stand-by power supplies 2-20 will use CR2032 button cells, substation power module 2-21
Using LDO chips and DC-DC chips, LDO chips use AMS1117-3.3, DC-DC chips to use LM2596T-5.0/NOPB,
Substation power module 2-21 will meet the input of 5-36V Width funtions, and using the independently-powered power supply provisioning policy of sub-module, root
Appropriate power supply chip, DC-DC chips is selected to use LM2596T-5.0/NOPB according to the power situation of module（3A power supply capacities）,
LDO chips use AMS1117-3.3（1A power supply capacities）.
As shown in Fig. 3, collector 3 includes acquisition master controller 3-1, acquisition submaster controller 3-2, acquisition CAN receipts
Send out one 3-3 of device, two 3-4 of acquisition CAN transceiver, 485 transceiver of acquisition, one 3-15,485 transceiver of acquisition, two 3-16, acquisition power supply
Module 3-12, acquisition Flash memory modules 3-5 and seven acquisition LoRa modules 3-7；Master controller 3-1 is acquired to go here and there by acquiring
Mouth 3-8 connections acquisition submaster controller 3-2；Acquisition master controller 3-1 is separately connected acquisition CAN transmitting-receivings by acquiring CAN bus 3-6
One 3-3 of device and acquisition two 3-4 of CAN transceiver, one 3-3 of acquisition CAN transceiver draw acquisition one 3-9 of CAN interface, acquisition
In the monitoring network of CAN interface one 3-9 access acquisition CAN bus 3-6, receive various under one 3-3 of acquisition CAN transceiver
Sensor information；It acquires two 3-4 of CAN transceiver and draws acquisition two 3-10 of CAN interface, two 3-10 of acquisition CAN interface
CAN bus 3-6 is acquired for accessing, collector 3 is connected by way of point-to-point connection, realizes LoRa wireless coverages
Increase；By acquiring, 485 bus 3-14 are separately connected acquisition 485 transceiver, one 3-15 to acquisition master controller 3-1 and acquisition 485 is received
Two 3-16 of device is sent out, 485 transceiver of acquisition, one 3-15 draws acquisition 485 bus interface, one 3-17, and acquisition 485 transceiver, two 3-16 draws
Go out 485 bus interface of acquisition, two 3-18；It acquires master controller 3-1 and acquires Flash memory modules 3- by acquiring SPI3-11 connections
5, acquisition Flash memory modules 3-5 is for storing location information and system command；Submaster controller 3-2 is acquired by acquiring serial ports
3-8 is separately connected seven acquisition LoRa modules 3-7, and seven acquisition LoRa modules 3-7 distribution channels 0 arrive 6 seven channels of channel, lead to
It crosses seven channels and increases the load capacity of LoRa wireless networks by way of dividing timesharing, build LoRa wireless sense networks
Network, reception staff dispatch the area locating information and precise location information that positioning terminal is sent, are installed on acquisition LoRa modules 3-7
There is acquisition antenna 3-13；Acquisition power module 3-12 is electrically connected acquisition master controller 3-1, acquisition submaster controller 3-2, acquisition
LoRa modules 3-7,485 transceiver of acquisition, one 3-15,485 transceiver of acquisition, two 3-16, acquisition one 3-3 of CAN transceiver and acquisition
Two 3-4 of CAN transceiver powers for it.
Wherein, acquisition master controller 3-1 and acquisition submaster controller 3-2 are all made of STM32F407 chips, acquire LoRa modules
The E32-TTL-100 LoRa chips that 3-7 is used, acquisition one 3-3 of CAN transceiver and acquisition two 3-4 of CAN transceiver are all made of
TD321DCANH chips, acquisition 485 transceiver, one 3-15 and acquisition 485 transceiver, two 3-16 are all made of golden rising Yang
TD321D485 chips, acquisition Flash memory modules 3-5 use capacity for the W25Q128B chips of 128MB, acquire power module
3-12 uses LDO chips（AMS1117-3.3）With DC-DC chips（LM2596T-5.0/NOPB）.
Embodiment 2：
Coal mine safety monitoring method based on embodiment 1, this method are as follows：
S1, site safety monitoring system server 25 obtain monitoring data：Live cable and pass through wireless networked devices 6 be transformed
The inspection that set according to safety monitoring system of environmental sensor device, facility switching state sensor and control class equipment it is all
Phase, actively or the passive monitoring data that uploads is to outstation；
It is specific as follows：
Substation master controller 2-1 sends inspection signal, collector by 485 bus interface 2-15 of substation in S101, outstation 2
3 receive after inspection signal to lower forwarding, and the environmental sensor on 485 bus 2-23 of substation is according to modbus agreements（It does not limit
Communications protocol）Monitoring data, collector 3 is reported to receive the message information that environmental sensor reports, forward up to outstation
2；
S102, collector 3 two 3-16 of acquisition CAN transceiver receive monitoring data, pass through after buffering and acquire CAN transceiver one
3-15 is transmitted to higher level's collector 3 and outstation 2, and substation CAN interface one 2-17 and substation CAN of outstation 2 are total
Two 2-18 of line interface receives the monitoring data that the environmental sensor of carry and collector 3 upload in bus；
The letter of the substation submaster controller 2-2 and acquisition submaster controller 3-2 control LoRa networks of S103, outstation 2 and collector 3
The distribution of road and time slot coordinate code realizes that LoRa network communications, outstation 2 or collector 3 receive the transmission of wireless networked devices 6
The LoRa wireless datas come：
If 1., collector 3 receive wireless networked devices 6 transmission data, then by acquire CAN bus 3-6 be transmitted to monitoring
Substation 2；
Substation on-off model interface 2-25 and substation power down control signal 2-22 interfaces on S104, outstation 2 are set
Standby start-stop state and power down control signal data；
S105, the 485 bus 2-23 of substation by outstation 2, substation CAN bus 2-14, substation LoRa modules 2-11,
Substation on-off model line 2-24, substation power down control signal line 2-8 realize monitoring data in outstation region, are deposited into point
After Flash memory modules of standing 2-10 buffering, then uploaded in data acquisition server 24 by substation ethernet module 2-5；
After S106, data acquisition server 24 receive monitoring data buffering, safety monitoring system clothes are transmitted to according to subscription service
Business device 25, realizes security monitoring function；
S2, outstation 2 carry out analyzing processing and upload to monitoring data：After outstation 2 receives monitoring data, pass through side
Edge calculates and pre-set threshold value alarming value carries out analyzing processing, and the monitoring data handled through edge calculations is passed through industrial looped network
It is uploaded to data acquisition server 24；
S3, safety monitoring system server 25 handle monitoring data：Data acquisition server 24 receives outstation 2
After the monitoring data of transmission, data buffering is carried out to monitoring data and separation is stored, and responds safety monitoring system server
Monitoring data is sent to safety monitoring system server by subscription service；
After safety monitoring system server 25 receives monitoring data, current underground site environmental parameter is shown by GIS figures
And equipment operation condition, and pass through the means of expert system, mist calculating, threshold values early warning built in safety monitoring system server 25
Monitoring data is handled, and realizes early warning and warning function；
S4, the storage of cloud service data and service：Monitoring data is uploaded to private by safety monitoring system server 25 by Ethernet
There are a Cloud Server 10 and public Cloud Server 11, privately owned Cloud Server 10 and public Cloud Server 11 are according to the mode pair of cloud computing
Monitoring data carries out analyzing processing, obtains safe early warning as a result, and providing the monitoring system based on the ends web or APP by cloud service
System value-added service, such as：It realizes and consults the operating condition of underground safety monitoring system and real-time environmental parameter on the spot at any time
And equipment operation condition；
S5, safety monitoring system server 25 issue control command：Safety monitoring system server 25 according to early warning and alarm with
And artificial control sends control command, is sent to outstation 2 after being forwarded via data acquisition server 24, outstation 2 passes through
Control command is sent to environmental sensor device, facility switching state sensor and control by cable network and wireless LoRa networks
Class equipment processed, environmental sensor device, facility switching state sensor and control class equipment receive after, according to control command into
The switching manipulation of row equipment, it is specific as follows：
S501, safety monitoring system server 25 generate control command to control class equipment（Circuit breaking controller）Send control life
It enables, it is as follows that specific instructions issue flow：
S5011, safety monitoring system server 25 send out control command by optical fiber or twisted-pair feeder 7 through ground network interchanger 1
Data acquisition server 24 is given, data acquisition server 24 is made up of ground network interchanger 1, downhole network interchanger 4
Industrial looped network be transmitted to outstation 2；
S5012, outstation 2 parse the control command received, corresponding control signal are generated, inside outstation 2
List of devices, selection control signal issues path, outstation 2 by 485 bus 2-14 of substation, substation CAN bus 2-23,
The each equipment of the substation amount of opening the light signal wire 2-24 and substation power down control signal line 2-25 into wired networking module 5 is sent
Control command, while outstation 2 is handed down to collector 3 by acquiring CAN bus 3-6 by signal is controlled, collector 3 passes through
LoRa wireless networks wirelessly network to LoRa via wireless networked devices 6 equipment in module send control command；
S502,2 in-situ processing of outstation：Outstation 2 is alarmed threshold values, generates warning information by way of edge calculations,
And control command is sent to control class equipment, detailed process is as follows：
S5021, outstation 2 by 485 bus 2-14 of substation, substation CAN bus 2-23, substation on-off model line 2-24,
Substation powers off the monitoring data of controlled quentity controlled variable signal wire 2-25 and LoRa wireless network acquisition, pre- in advance according to edge calculations mode
Police passes through threshold values real-time early warning, generates pre-warning signal；
S5022, outstation 2 generate corresponding control signal, outstation passes through substation according to preset emergency processing strategy
485 bus 2-14, substation CAN bus 2-23, the substation amount of opening the light signal wire 2-24 and substation power down control signal line 2-25 to
Each equipment in wired networking module 5 sends control command, while outstation 2 is believed control by acquiring CAN bus 3-6
Number it is handed down to collector 3, collector 3 is wirelessly networked to LoRa in module 8 by LoRa wireless networks via wireless networked devices 6
Each equipment send control command.
S6, environmental sensor device, facility switching state sensor and the installation of control class equipment and registration and management,
It is specific as follows：
S601, wireless environment sensor device, wireless device on off state sensor and wireless control class equipment are divided to monitoring
Stand 2 or collector 3 ask for the channel time slot coordinate codes of LoRa communications, after success to be allocated, outstation 2 can be in list of devices
It is middle to increase corresponding environmental sensor device, facility switching state sensor and control class equipment, and can be by new registration information
It is uploaded to data acquisition server 24 by Industrial Ethernet；
S602, data acquisition server 24 understand the environmental sensor device uploaded according to outstation 2, facility switching state senses
The device id carried when device and control class facility registration information tells environmental sensor device, facility switching state sensor
And control class equipment relevant sources information, it carries out environmental sensor device, facility switching state sensor and control class and sets
Remarks volume, and submit to safety monitoring system server and check and manage；
S603, the environmental sensor device for being uploaded for a long time without information, facility switching state sensor and control class equipment,
Data acquisition server 24 can send out equipment fault prompt, if the equipment is deactivated or replaces, artificially pass through security monitoring
System server 25 carries out selection confirmation, realizes that equipment deletes replacement operation；
S7, wireless networked devices 6 carry out existing equipment transformation, specific as follows：
S701, according to environmental sensor device, facility switching state sensor and control class equipment wired connection mode and
Communication protocol carries out the relevant configuration of embedded software, specific as follows：
S7011, wired configuration is carried out according to selection wired connection mode：
If 1., one or more of wired connection selection substation 485 bus 2-14, substation CAN bus 2-23 and Serial Port Line,
Then to 485 bus interface 6-13 of networking, the networking CAN interface 3-14 and networking TTL serial interfaces in wireless networked devices 6
Configuration of the mouth into 6-15 rows baud rate, flag, stop position relevant parameter；
If 2., wired connection select substation on-off model line 6-23, to the networking switch amount signal in wireless networked devices 6
Interface 6-17 is configured and is selected access pin；
If 3., wired connection select substation power down control signal line 6-22, in wireless networked devices 6 networking breakpoint control
Signaling interface 6-16 is configured and is selected output controlling switch；
S7012, data protocol parsing and order retransmission unit are selected according to communication protocol：
If 1., communication protocol select 485 communications protocol, CAN communication agreement, one or more of serial port communicating protocol, root
The parsing for receiving data and the generation for sending order are realized according to communications protocol；
If 2., communication protocol selecting switch amount signal communication agreement, the meaning of configuration switch state；
If 3., communication protocol select power down control signal communications protocol, configure power-off control default conditions and action form；
S7013, radio configuration is carried out according to the wireless network connecting mode of selection：
If 1., wireless network connecting mode selection LoRa wireless networks and WiFi wireless networks, by wireless networked devices 6 exist
Line uploads data；
If 2., wireless network connecting mode selection blue tooth radio network and 2.4G RFID networks, wireless networked devices 6 need to be by the period
It realizes the acquisition of facility information and stores into networking EEPROM memory modules 6-4, and will even when hand-held mobile terminal 9 passes by
Historical data in net EEPROM memory modules 6-4 is sent.
S702, after completing embedded software relevant configuration, the exclusive firmware of equipment is generated after compiled, downloads to wireless networking
In device 6, environmental sensor device, facility switching state sensor and control class equipment are passed through with wireless networked devices 6
Wire signal line connects, environmental sensor device, facility switching state sensor and control class equipment and wireless networking
Device 6 enters working condition after being powered；
S703, the wireless mode configured according to wireless connection device 6, select corresponding information to upload path, pass through wireless network
The upload of information is completed, realizes the real time monitoring of mine underground monitoring system；Wherein, the wireless mode packet of wireless connection device configuration
Include following content：
If the wireless mode that S7031, wireless networked devices 6 configure is the real-time networking of LoRa wireless networks or WiFi wireless networks
Pattern, then after receiving the information that environmental sensor device, facility switching state sensor and control class equipment send over,
Safety monitoring system server 25 is sent to by wireless network immediately；
If the wireless mode that S7302, wireless networked devices 6 configure is the inspection company of blue tooth radio network or 2.4G RFID networks
Net pattern, then wireless networked devices 6 can periodic storage environment sensor device, facility switching state sensor and control
The information that class equipment sends over, and historical data is uploaded into hand-held mobile terminal 9, hand when hand-held mobile terminal 9 passes through
It holds mobile terminal 9 and safety monitoring system server 25 is uploaded to by WiFi or 3G, 4G network after completing inspection.
Finally it should be noted that：The above embodiments are only used to illustrate the technical solution of the present invention., rather than its limitations；To the greatest extent
It is fast that present invention has been described in detail with reference to the aforementioned embodiments, it will be understood by those of ordinary skill in the art that：Its according to
So can with technical scheme described in the above embodiments is modified, either to which part or all technical features into
Row equivalent replacement；And these modifications or replacements, various embodiments of the present invention technology that it does not separate the essence of the corresponding technical solution
The range of scheme.
Claims (10)
1. the coal mine safety monitoring system based on LoRa, which is characterized in that including surface-monitoring equipment, ground network interchanger,
Downhole network interchanger, wired networking module, outstation and LoRa wirelessly network module, and surface-monitoring equipment passes through optical fiber
Or twisted pair line connection ground network interchanger, ground network interchanger pass through optical fiber or twisted pair line connection outstation, monitoring point
It stands and wired networking module is connected by substation CAN bus or 485 bus of substation, outstation is connected by LoRa Wi-Fis
LoRa wirelessly networks module；
LoRa wirelessly network module include at least one collector, several wireless environment sensors, several wireless devices switch shape
State sensor, several wireless control class equipment and several hand-held mobile terminals, outstation and collector and collector with
By acquiring CAN bus connection, wireless environment sensor, wireless device on off state sensor and wireless controlled between collector
Class equipment processed passes through LoRa wireless network connections outstation or collector, wireless environment sensor, wireless device switch respectively
State sensor and wireless control class equipment connect hand-held mobile terminal by 2.4G RFID or blue tooth radio network respectively.
2. the coal mine safety monitoring system according to claim 1 based on LoRa, which is characterized in that the wireless environment passes
Sensor includes environmental sensor and wireless networked devices, and environmental sensor is connect by the CAN interface that networks, 485 buses of networking
Mouth or networking TTL serial line interfaces connect wireless networked devices；
Wireless device on off state sensor includes facility switching state sensor and wireless networked devices, and facility switching state passes
Sensor connects wireless networked devices by networking switch amount signaling interface；
Wireless wireless control class equipment includes control class equipment and wireless networked devices, and control class equipment passes through the breakpoint control that networks
Signaling interface connects wireless networked devices；
For wireless networked devices by LoRa wireless network connections outstation or collector, wireless networked devices pass through 2.4G
RFID or blue tooth radio network connect hand-held mobile terminal.
3. the coal mine safety monitoring system according to claim 1 or 2 based on LoRa, which is characterized in that described wirelessly to connect
Net device includes networking master controller, access in radio unit, the unit that wirelessly networks, networking RTC Real Time Clock batteries, network power supply
Module, 485 transceivers of networking, networking CAN transceiver and networking EEPROM memory modules, networking master controller are separately connected wired
Access unit, the unit that wirelessly networks, networking EEPROM memory modules, networking RTC Real Time Clock batteries；
Wireless networking unit includes networking unit and routing inspection unit, and networking unit includes networking LoRa wireless modules and networking WIFI
Wireless module, networking master controller connect networking LoRa wireless modules and networking WiFi wireless modules by the serial ports that networks respectively,
LoRa wireless modules and networking WiFi wireless modules network for realizing the wireless networking of monitoring device, realizes the reality of monitoring device
When wireless monitor；Routing inspection unit includes networking bluetooth radio module and networking 2.4G RFID modules, and networking master controller leads to respectively
Cross networking serial ports connection networking bluetooth radio module and networking 2.4G RFID modules, networking bluetooth radio module and networking 2.4G
Wireless networking of the RFID module for network master controller and hand-held mobile terminal；
Access in radio unit includes 485 bus interface of networking, networking CAN interface, networking TTL serial line interfaces, networking power-off
Signaling interface and networking switch amount signaling interface are controlled, networking master controller passes through 485 buses connection networking, 485 transmitting-receiving that networks
Device, 485 transceivers of networking draw 485 bus interface of networking；The master controller that networks is received by the CAN bus connection networking CAN that networks
Device is sent out, networking CAN transceiver draws networking CAN interface；The master controller that networks is serial by the serial ports extraction networking TTL that networks
Interface, networking master controller draw networking power down control signal interface by the power down control signal line that networks, and network master controller
Networking switch amount signaling interface is drawn by networking switch amount signal wire；
Networking power module be electrically connected networking master controller, networking 485 transceivers, networking CAN transceiver, networking LoRa without
Wire module, networking WiFi wireless modules, networking bluetooth radio module and networking 2.4G RFID modules are powered for it.
4. the coal mine safety monitoring system according to claim 3 based on LoRa, which is characterized in that the wireless networking dress
It further includes software systems to set, software systems include access unit configuration module, radio-cell configuration module, data protocol parsing and
Order retransmission unit；
Wherein, access unit configuration module selects the interface of wired connection, has for realizing the configuration to access in radio unit
The interface of line access unit includes 485 bus interface of networking, networking CAN interface, networking TTL serial line interfaces, networking power-off
Control signaling interface and networking switch amount signaling interface；Radio-cell configuration module is matched for realizing to the unit that wirelessly networks
It sets, selects the mode of wireless connection, the wireless mode for networking unit includes LoRa wireless networks, WiFi wireless networks, bluetooth
Wireless network and 2.4G RFID networks；Data protocol parses and order retransmission unit according to protocol realization to wired for connecing
Enter the parsing for the data that unit receives, and be transmitted to wireless networking unit, and the order that wireless networking unit receives is led to
Agreement and access in radio unit forwards are crossed to environmental sensor, facility switching state sensor and control class equipment.
5. the coal mine safety monitoring system according to claim 1 based on LoRa, which is characterized in that the outstation packet
It includes substation master controller, substation submaster controller, substation 2.4G RFID modules, 485 transceiver of substation, substation ethernet module, divide
CAN transceiver of standing one, substation display, substation Flash memory modules, substation RTC stand-by power supplies, is divided at substation CAN transceiver two
It stands power module, substation power down control signal interface, substation on-off model interface and seven substation LoRa modules；
Substation master controller connects substation submaster controller and substation 2.4G RFID modules by substation serial ports respectively；
Substation master controller connects 485 transceiver of substation by 485 bus of substation, and 485 transceiver of substation draws 485 bus of substation
Interface, 485 bus interface of substation receive various under 485 transceiver of substation for accessing in the monitoring network of 485 bus of substation
The information of sensor；
Substation master controller stores mould by substation SPI connection substations ethernet module, substation display and substation Flash respectively
Block；Substation ethernet module draws substation RJ45 network interfaces, and substation RJ45 network interfaces are made by twisted pair line connection downhole network interchanger
Its access industrial looped network；
Substation master controller connects substation CAN transceiver one and substation CAN transceiver two, substation by substation CAN bus respectively
CAN transceiver one draws substation CAN interface one, and substation CAN interface one accesses the monitoring network of substation CAN bus
In, receive the various sensor informations of substation CAN transceiver once；Substation CAN transceiver two draws substation CAN interface
Two, substation CAN interface two is connected collector by way of point-to-point connection, realized for accessing substation CAN bus
The increase of LoRa wireless coverages；
Substation submaster controller is separately connected seven substation LoRa modules, substation LoRa modules and substation 2.4G by substation serial ports
Substation antenna is both provided in RFID module；Seven substation LoRa module assignments channels 0 arrive 6 seven channels of channel, pass through seven
Channel and the load capacity for increasing LoRa wireless networks by way of dividing timesharing, build LoRa wireless sensor networks, receive
The area locating information and precise location information that personal scheduling positioning terminal is sent；
Substation master controller connects substation power down control signal interface by substation power down control signal line；Substation master controller is logical
Cross substation on-off model line connection substation on-off model interface；
Substation master controller connects substation RTC stand-by power supplies, the real-time clock that substation RTC stand-by power supplies are used to ensure to transmit substation
Continuous service；Substation power module is electrically connected substation master controller, substation submaster controller, substation 2.4G RFID modules, divides
It stands 485 transceivers, substation ethernet module, substation CAN transceiver one, substation CAN transceiver two, substation display and substation
LoRa modules are powered for it.
6. the coal mine safety monitoring system according to claim 1 based on LoRa, which is characterized in that the collector includes
Including acquisition master controller, acquisition submaster controller, acquisition CAN transceiver one, acquisition CAN transceiver two, 485 transceivers of acquisition
One, 485 transceivers two, acquisition power module, acquisition Flash memory modules and seven acquisition LoRa modules are acquired；
Master controller is acquired by acquiring serial ports connection acquisition submaster controller；
Acquisition master controller is separately connected acquisition CAN transceiver one and acquisition CAN transceiver two, acquisition by acquiring CAN bus
CAN transceiver one draws acquisition CAN interface one, the monitoring network of the acquisition access acquisition CAN bus of CAN interface one
In, receive the various sensor informations of acquisition CAN transceiver once；It acquires CAN transceiver two and draws acquisition CAN interface
Two, acquisition CAN interface two is connected collector by way of point-to-point connection, realized for accessing acquisition CAN bus
The increase of LoRa wireless coverages；
Acquisition master controller is separately connected 485 transceiver one of acquisition and 485 transceivers two of acquisition, acquisition by acquiring 485 buses
485 transceivers one draw 485 bus interface one of acquisition, and 485 transceivers two of acquisition draw 485 bus interface two of acquisition；
It acquires master controller and acquires Flash memory modules by acquiring SPI connections, acquisition Flash memory modules are fixed for storing
Position information and system command；
Acquisition submaster controller is separately connected seven acquisition LoRa modules, seven acquisition LoRa module assignment channels by acquiring serial ports
0 arrives 6 seven channels of channel, increases the load capacity of LoRa wireless networks by way of seven channels and by frequency dividing timesharing,
LoRa wireless sensor networks are built, reception staff dispatches the area locating information and precise location information that positioning terminal is sent, adopts
It is provided with acquisition antenna in collection LoRa modules；
Acquisition power module is electrically connected acquisition master controller, acquisition submaster controller, acquisition LoRa modules, 485 transmitting-receiving of acquisition
Device one, 485 transceivers two of acquisition, acquisition CAN transceiver one and acquisition CAN transceiver two are powered for it.
7. the coal mine safety monitoring system according to claim 1 based on LoRa, which is characterized in that described hand-held mobile whole
End connects outstation by LoRa bluetooth middlewares, and hand-held mobile terminal is connected by blue tooth radio network among LoRa bluetooths
Part, LoRa bluetooth middlewares pass through LoRa wireless network connection outstations；
LoRa bluetooth middlewares include intermediate LoRa wireless modules, intermediate Bluetooth module, intermediate master controller, intermediate lithium battery and
Intermediate power supplies management module, intermediate master controller connect intermediate LoRa wireless modules and intermediate Bluetooth mould by intermediate serial ports respectively
Block；Intermediate lithium battery connects intermediate power supplies management module, intermediate power supplies management module be electrically connected intermediate LoRa wireless modules,
Intermediate Bluetooth module and intermediate master controller are powered for it.
8. the coal mine safety monitoring system according to claim 1 based on LoRa, which is characterized in that the ground monitoring is set
Standby includes computer, audible-visual annunciator, printer, data acquisition server, safety monitoring system server, privately owned Cloud Server
With public Cloud Server, computer, audible-visual annunciator, printer, data acquisition server, safety monitoring system server, private
There are Cloud Server and public Cloud Server respectively by optical fiber or twisted pair line connection ground network interchanger；
Wired networking module includes cable environment sensor, wireline equipment on off state sensor and has line traffic control class equipment, is had
Thread environment sensor connects outstation by 485 bus of substation or substation CAN bus, and wireline equipment on off state sensor is logical
Substation on-off model line connection outstation is crossed, has line traffic control class equipment to power off the connection monitoring of controlled quentity controlled variable signal wire by substation
Substation.
9. the coal mine safety monitoring method based on LoRa, which is characterized in that this method is as follows：
S1, outstation obtain monitoring data：Live cable and the environmental sensor device being transformed by wireless networked devices,
Facility switching state sensor and the polling period that set according to safety monitoring system of control class equipment, actively or passively on
Monitoring data is passed to outstation；
S2, outstation carry out analyzing processing and upload to monitoring data：After outstation receives monitoring data, pass through edge
It calculates and pre-set threshold value alarming value carries out analyzing processing, and the monitoring data handled through edge calculations is passed through on industrial looped network
It is transmitted to data acquisition server；
S3, safety monitoring system server handle monitoring data：Data acquisition server receives outstation transmission
Monitoring data after, data buffering is carried out to monitoring data and separation is stored, and responds the subscription of safety monitoring system server
Service, safety monitoring system server is sent to by monitoring data；
After safety monitoring system server receives monitoring data, by GIS figures show current underground site environmental parameter and
Equipment operation condition, and calculated by expert system built in safety monitoring system server, mist, the means of threshold values early warning are to prison
Control data are handled, and realize early warning and warning function；
S4, the storage of cloud service data and service：Safety monitoring system server is uploaded to monitoring data by Ethernet privately owned
Cloud Server and public Cloud Server, privately owned Cloud Server and public Cloud Server according to the mode of cloud computing to monitoring data into
Row analyzing processing obtains safe early warning as a result, and providing the monitoring system value-added service based on the ends web or APP by cloud service；
S5, safety monitoring system server issue control command：Safety monitoring system server is according to early warning and alarm and people
Control command is sent in order to control, outstation is sent to after being forwarded via data acquisition server, and outstation passes through cable network
Control command environmental sensor device, facility switching state sensor and control class is sent to wireless LoRa networks to set
It is standby, after environmental sensor device, facility switching state sensor and control class equipment receive, equipment is carried out according to control command
Switching manipulation；
S6, environmental sensor device, facility switching state sensor and the installation of control class equipment and registration and management, specifically
It is as follows：
S601, wireless environment sensor device, wireless device on off state sensor and wireless control class equipment are divided to monitoring
It stands or collector asks for the channel time slot coordinate codes of LoRa communications, after success to be allocated, outstation can be in list of devices
Increase corresponding environmental sensor device, facility switching state sensor and control class equipment, and new registration information can be led to
It crosses Industrial Ethernet and is uploaded to data acquisition server；
Environmental sensor device, the facility switching state sensor that S602, data acquisition server can be uploaded according to outstation
And when control class facility registration information the device id that carries tell environmental sensor device, facility switching state sensor with
And control class equipment relevant sources information, carry out environmental sensor device, facility switching state sensor and control class equipment
Registration, and submit to safety monitoring system server and check and manage；
S603, the environmental sensor device for being uploaded for a long time without information, facility switching state sensor and control class equipment,
Data acquisition server can send out equipment fault prompt, if the equipment is deactivated or replaces, artificially pass through security monitoring system
System server carries out selection confirmation, realizes that equipment deletes replacement operation；
S7, wireless networked devices carry out existing equipment transformation, specific as follows：
S701, according to environmental sensor device, facility switching state sensor and control class equipment wired connection mode and
Communication protocol carries out the relevant configuration of embedded software, specific as follows：
S7011, wired configuration is carried out according to selection wired connection mode：
If 1., one or more of wired connection selection substation 485 bus, substation CAN bus and Serial Port Line, to wireless
485 bus interface of networking, networking CAN interface and networking TTL serial line interfaces in networked devices carry out baud rate, mark
The configuration of position, stop position relevant parameter；
If 2., wired connection select substation on-off model line, to the networking switch amount signaling interface in wireless networked devices
It is configured and selects access pin；
If 3., wired connection select substation power down control signal line, in wireless networked devices networking break point control signal
Interface is configured and selects output controlling switch；
S7012, data protocol parsing and order retransmission unit are selected according to communication protocol：
If 1., communication protocol select 485 communications protocol, CAN communication agreement, one or more of serial port communicating protocol, root
The parsing for receiving data and the generation for sending order are realized according to communications protocol；
If 2., communication protocol selecting switch amount signal communication agreement, the meaning of configuration switch state；
If 3., communication protocol select power down control signal communications protocol, configure power-off control default conditions and action form；
S7013, radio configuration is carried out according to the wireless network connecting mode of selection：
If 1., wireless network connecting mode selection LoRa wireless networks and WiFi wireless networks, by wireless networked devices exist
Line uploads data；
If 2., wireless network connecting mode selection blue tooth radio network and 2.4G RFID networks, wireless networked devices need to be by period reality
The acquisition of existing facility information is simultaneously stored into networking EEPROM memory modules, and will networking when hand-held mobile terminal passes by
Historical data in EEPROM memory modules is sent；
S702, after completing embedded software relevant configuration, the exclusive firmware of equipment is generated after compiled, downloads to wireless networked devices
In, environmental sensor device, facility switching state sensor and control class equipment are passed through into wired letter with wireless networked devices
Number line connects, and environmental sensor device, facility switching state sensor and control class equipment and wireless networked devices are logical
Enter working condition after electricity；
S703, the wireless mode configured according to wireless connection device select corresponding information to upload path, complete by wireless network
At the upload of information, the real time monitoring of mine underground monitoring system is realized；Wherein, the wireless mode of wireless connection device configuration includes
Following content：
If the wireless mode of S7031, wireless networked devices configuration are the real-time networking of LoRa wireless networks or WiFi wireless networks
Pattern, then after receiving the information that environmental sensor device, facility switching state sensor and control class equipment send over,
Safety monitoring system server is sent to by wireless network immediately；
If the wireless mode of S7302, wireless networked devices configuration are the inspection networking of blue tooth radio network or 2.4G RFID networks
Pattern, then wireless networked devices can periodic storage environment sensor device, facility switching state sensor and control class
The information that equipment sends over, and historical data is uploaded into hand-held mobile terminal when hand-held mobile terminal passes through, it holds and moves
Dynamic terminal uploads to safety monitoring system server after completing inspection by WiFi or 3G, 4G network.
10. the coal mine safety monitoring method according to claim 9 based on LoRa, which is characterized in that in the step S1
Outstation obtains monitoring data, specific as follows：
Substation master controller sends inspection signal by 485 bus interface of substation in S101, outstation, and collector, which receives, to patrol
It examines after signal to lower forwarding, the environmental sensor in 485 bus of substation reports monitoring data, collector to receive according to modbus agreements
The message information reported to environmental sensor, forwards up to outstation；
S102, collector acquisition CAN transceiver two receive monitoring data, pass through after buffering and acquire CAN transceiver one and forward
To higher level's collector and outstation, the substation CAN interface one and substation CAN interface two of outstation receive bus
The monitoring data that the environmental sensor and collector of upper carry upload；
The channel and time slot of the substation submaster controller and acquisition submaster controller control LoRa networks of S103, outstation and collector
LoRa network communications are realized in the distribution of coordinate code, and it is wireless that outstation or collector receive the LoRa that wireless networked devices are sent
Data：
If 1., collector receive the data that wireless networked devices are sent, then be transmitted to outstation by acquiring CAN bus；
Substation on-off model interface on S104, outstation and substation power down control signal interface equipment start-stop state
With power down control signal data；
S105,485 bus of substation by outstation, substation CAN bus, substation LoRa modules, substation on-off model
Line, substation power down control signal line realize monitoring data in outstation region, are deposited into substation Flash memory modules buffering
Afterwards, then by substation ethernet module it uploads in data acquisition server；
After S106, data acquisition server receive monitoring data buffering, safety monitoring system service is transmitted to according to subscription service
Device realizes security monitoring function；
Safety monitoring system server issues control command in the step S5, specific as follows：
S501, safety monitoring system server generate control command and send control command to control class equipment, and specific instructions issue
Flow is as follows：
Control command is sent to by optical fiber or twisted-pair feeder through ground network interchanger by S5011, safety monitoring system server
Data acquisition server, data acquisition server by ground network interchanger, downhole network group of switches at industrial looped network
It is transmitted to outstation；
S5012, outstation parse the control command received, corresponding control signal are generated, inside outstation
List of devices, selection control signal issue path, and outstation passes through 485 bus of substation, substation CAN bus, the substation amount of opening the light
The each equipment of signal wire and substation power down control signal line into wired networking module sends control command, while monitoring and dividing
It stands and control signal is handed down to collector by acquiring CAN bus, collector is filled by LoRa wireless networks via wireless networking
It sets the equipment wirelessly to network to LoRa in module and sends control command；
S502, outstation in-situ processing：Outstation is alarmed threshold values, generates warning information by way of edge calculations, and
Control command is sent to control class equipment, detailed process is as follows：
S5021, outstation power off controlled quentity controlled variable by 485 bus of substation, substation CAN bus, substation on-off model line, substation
Signal wire and the monitoring data of LoRa wireless networks acquisition, give warning in advance or pre- in real time by threshold values according to edge calculations mode
It is alert, generate pre-warning signal；
S5022, outstation generate corresponding control signal, outstation passes through substation according to preset emergency processing strategy
485 buses, substation CAN bus, the substation amount of opening the light signal wire and substation power down control signal line are into wired networking module
Each equipment sends control command, while outstation is handed down to collector, collector by acquiring CAN bus by signal is controlled
The each equipment wirelessly to be networked to LoRa in module via wireless networked devices by LoRa wireless networks sends control command.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810828250.2A CN108798787B (en) | 2018-07-25 | 2018-07-25 | Coal mine safety monitoring system and method based on LoRa |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810828250.2A CN108798787B (en) | 2018-07-25 | 2018-07-25 | Coal mine safety monitoring system and method based on LoRa |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN108798787A true CN108798787A (en) | 2018-11-13 |
| CN108798787B CN108798787B (en) | 2023-08-01 |
Family
ID=64078052
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810828250.2A Active CN108798787B (en) | 2018-07-25 | 2018-07-25 | Coal mine safety monitoring system and method based on LoRa |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN108798787B (en) |
Cited By (19)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109451055A (en) * | 2018-12-20 | 2019-03-08 | 大同裕隆环保有限责任公司 | Coal Mine Safety Monitoring Systems based on wireless jump set |
| CN109688564A (en) * | 2019-03-12 | 2019-04-26 | 贵州电网有限责任公司 | A kind of power monitoring system and O&M method based on bluetooth and LoRa |
| CN110062052A (en) * | 2019-05-17 | 2019-07-26 | 精英数智科技股份有限公司 | A kind of artificial intelligent comprehensive substation of underground coal mine |
| CN110266816A (en) * | 2019-07-13 | 2019-09-20 | 中国矿业大学(北京) | A kind of communication device of the underground with emergency optical communication capabilities |
| CN110381158A (en) * | 2019-07-26 | 2019-10-25 | 吉林市东杰科技开发有限公司 | A kind of monitoring method and system of the Tailings Dam based on narrowband Internet of Things |
| CN110475220A (en) * | 2019-06-30 | 2019-11-19 | 安徽宇艳智能机械科技有限公司 | A kind of underground monitoring network system based on 6lowpan communication protocol |
| CN110700887A (en) * | 2019-11-11 | 2020-01-17 | 西安科技大学 | Coal mine safety production monitoring and early warning system and method |
| CN111005765A (en) * | 2019-12-31 | 2020-04-14 | 重庆菲莫科技有限公司 | Underground coal mine data transmission method and system |
| CN111157919A (en) * | 2020-03-19 | 2020-05-15 | 江西省科学院能源研究所 | Lightning arrester on-line monitoring system based on cloud and mist cooperation |
| CN111311897A (en) * | 2020-03-26 | 2020-06-19 | 四川信息职业技术学院 | Mine monitoring device based on wireless Lora |
| CN111350546A (en) * | 2020-02-11 | 2020-06-30 | 安徽理工大学 | Coal mine gas monitoring system |
| CN111669766A (en) * | 2020-06-15 | 2020-09-15 | 深圳畅想云物联科技有限公司 | Intelligent park wireless intelligent private network implementation method, system and storage medium |
| CN111935116A (en) * | 2020-07-30 | 2020-11-13 | 安徽华速达电子科技有限公司 | Intelligent optical network unit file loading method |
| CN112610279A (en) * | 2020-12-18 | 2021-04-06 | 福州华虹智能科技股份有限公司 | Monitoring system for underground exploration based on Internet of things |
| CN112614328A (en) * | 2020-11-13 | 2021-04-06 | 国网河北省电力有限公司电力科学研究院 | Edge internet of things agent device |
| CN112983549A (en) * | 2021-03-09 | 2021-06-18 | 中国矿业大学 | Overburden mining abscission layer dynamic development monitoring method |
| TWI739338B (en) * | 2020-03-11 | 2021-09-11 | 崑山科技大學 | Environment-aware wisdom triggers power-saving methods |
| WO2022062126A1 (en) * | 2020-09-28 | 2022-03-31 | 西安热工研究院有限公司 | 5g-technology-based mobile monitoring system for gas film closed coal yard |
| US11943692B2 (en) | 2022-05-12 | 2024-03-26 | Teltrust Corporation | Emergency response using non-cellular long-range radio channel and emergency use wi-fi hotspot |
Citations (14)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201358816Y (en) * | 2009-03-12 | 2009-12-09 | 煤炭科学研究总院重庆研究院 | Mine safety monitoring and controlling system based on wireless data transmitting and receiving and signal converter |
| CN104505949A (en) * | 2015-01-22 | 2015-04-08 | 中国矿业大学 | Mine power network monitoring and guaranteeing system |
| CN106373318A (en) * | 2016-10-27 | 2017-02-01 | 深圳乐创信息通讯技术有限公司 | Fire prevention and control system based on LoRa technology |
| CN205992918U (en) * | 2016-09-21 | 2017-03-01 | 济宁中科大象医疗电子科技有限公司 | Mining intelligent based on LoRa wireless base station real-time sign monitor system |
| CN107015269A (en) * | 2017-06-07 | 2017-08-04 | 吉林大学 | A kind of microseism pressure break real-time monitoring system and monitoring method based on wireless network |
| CN206573904U (en) * | 2017-03-20 | 2017-10-20 | 苏州德姆斯信息技术有限公司 | Machine state wireless monitoring device and system |
| CN107272539A (en) * | 2017-07-27 | 2017-10-20 | 中煤科工集团重庆研究院有限公司 | Coal mine area cooperative controller and cooperative control method |
| WO2017196215A1 (en) * | 2016-05-12 | 2017-11-16 | Telefonaktiebolaget Lm Ericsson (Publ) | Radio access network node, radio node and methods performed therein |
| NL2016828A (en) * | 2016-05-25 | 2017-11-30 | Ureason Int B V | Method for monitoring gas concentrations at a site |
| WO2018004661A1 (en) * | 2016-07-01 | 2018-01-04 | Intel Corporation | Monitoring electrical substation networks |
| CN206894631U (en) * | 2017-06-16 | 2018-01-16 | 山东有人信息技术有限公司 | A kind of multichannel Lora concentrators and the IOT systems with the Lora concentrators |
| CN206907083U (en) * | 2017-06-14 | 2018-01-19 | 阳光凯讯(北京)科技有限公司 | A kind of intelligent warehousing system based on Internet of Things |
| CN207441001U (en) * | 2017-11-01 | 2018-06-01 | 厦门矿通科技有限公司 | A kind of Internet of Things Transmission system based on Lora technologies |
| CN208778042U (en) * | 2018-07-25 | 2019-04-23 | 山东精诚电子科技有限公司 | Coal mine safety monitoring system based on LoRa |
-
2018
- 2018-07-25 CN CN201810828250.2A patent/CN108798787B/en active Active
Patent Citations (14)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201358816Y (en) * | 2009-03-12 | 2009-12-09 | 煤炭科学研究总院重庆研究院 | Mine safety monitoring and controlling system based on wireless data transmitting and receiving and signal converter |
| CN104505949A (en) * | 2015-01-22 | 2015-04-08 | 中国矿业大学 | Mine power network monitoring and guaranteeing system |
| WO2017196215A1 (en) * | 2016-05-12 | 2017-11-16 | Telefonaktiebolaget Lm Ericsson (Publ) | Radio access network node, radio node and methods performed therein |
| NL2016828A (en) * | 2016-05-25 | 2017-11-30 | Ureason Int B V | Method for monitoring gas concentrations at a site |
| WO2018004661A1 (en) * | 2016-07-01 | 2018-01-04 | Intel Corporation | Monitoring electrical substation networks |
| CN205992918U (en) * | 2016-09-21 | 2017-03-01 | 济宁中科大象医疗电子科技有限公司 | Mining intelligent based on LoRa wireless base station real-time sign monitor system |
| CN106373318A (en) * | 2016-10-27 | 2017-02-01 | 深圳乐创信息通讯技术有限公司 | Fire prevention and control system based on LoRa technology |
| CN206573904U (en) * | 2017-03-20 | 2017-10-20 | 苏州德姆斯信息技术有限公司 | Machine state wireless monitoring device and system |
| CN107015269A (en) * | 2017-06-07 | 2017-08-04 | 吉林大学 | A kind of microseism pressure break real-time monitoring system and monitoring method based on wireless network |
| CN206907083U (en) * | 2017-06-14 | 2018-01-19 | 阳光凯讯(北京)科技有限公司 | A kind of intelligent warehousing system based on Internet of Things |
| CN206894631U (en) * | 2017-06-16 | 2018-01-16 | 山东有人信息技术有限公司 | A kind of multichannel Lora concentrators and the IOT systems with the Lora concentrators |
| CN107272539A (en) * | 2017-07-27 | 2017-10-20 | 中煤科工集团重庆研究院有限公司 | Coal mine area cooperative controller and cooperative control method |
| CN207441001U (en) * | 2017-11-01 | 2018-06-01 | 厦门矿通科技有限公司 | A kind of Internet of Things Transmission system based on Lora technologies |
| CN208778042U (en) * | 2018-07-25 | 2019-04-23 | 山东精诚电子科技有限公司 | Coal mine safety monitoring system based on LoRa |
Non-Patent Citations (4)
| Title |
|---|
| 杨德;: "泰安煤矿液压支架压力和顶板离层位移监测系统研究", 同煤科技, no. 01 * |
| 杨锐;: "铁路无线通信业务应用场景分析", 铁道通信信号, no. 07 * |
| 霍振龙: "LoRa技术在矿井无线通信中的应用分析", 工矿自动化, no. 010 * |
| 黄增波;叶锦娇;赵华玮;: "基于LoRa技术的低功耗无线锚杆应力传感器设计", 煤矿现代化, no. 01 * |
Cited By (22)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109451055A (en) * | 2018-12-20 | 2019-03-08 | 大同裕隆环保有限责任公司 | Coal Mine Safety Monitoring Systems based on wireless jump set |
| CN109688564A (en) * | 2019-03-12 | 2019-04-26 | 贵州电网有限责任公司 | A kind of power monitoring system and O&M method based on bluetooth and LoRa |
| CN110062052A (en) * | 2019-05-17 | 2019-07-26 | 精英数智科技股份有限公司 | A kind of artificial intelligent comprehensive substation of underground coal mine |
| CN110475220A (en) * | 2019-06-30 | 2019-11-19 | 安徽宇艳智能机械科技有限公司 | A kind of underground monitoring network system based on 6lowpan communication protocol |
| CN110266816A (en) * | 2019-07-13 | 2019-09-20 | 中国矿业大学(北京) | A kind of communication device of the underground with emergency optical communication capabilities |
| CN110381158A (en) * | 2019-07-26 | 2019-10-25 | 吉林市东杰科技开发有限公司 | A kind of monitoring method and system of the Tailings Dam based on narrowband Internet of Things |
| CN110700887A (en) * | 2019-11-11 | 2020-01-17 | 西安科技大学 | Coal mine safety production monitoring and early warning system and method |
| CN111005765B (en) * | 2019-12-31 | 2021-06-11 | 重庆菲莫科技有限公司 | Underground coal mine data transmission method and system |
| CN111005765A (en) * | 2019-12-31 | 2020-04-14 | 重庆菲莫科技有限公司 | Underground coal mine data transmission method and system |
| CN111350546A (en) * | 2020-02-11 | 2020-06-30 | 安徽理工大学 | Coal mine gas monitoring system |
| TWI739338B (en) * | 2020-03-11 | 2021-09-11 | 崑山科技大學 | Environment-aware wisdom triggers power-saving methods |
| CN111157919A (en) * | 2020-03-19 | 2020-05-15 | 江西省科学院能源研究所 | Lightning arrester on-line monitoring system based on cloud and mist cooperation |
| CN111311897A (en) * | 2020-03-26 | 2020-06-19 | 四川信息职业技术学院 | Mine monitoring device based on wireless Lora |
| CN111669766A (en) * | 2020-06-15 | 2020-09-15 | 深圳畅想云物联科技有限公司 | Intelligent park wireless intelligent private network implementation method, system and storage medium |
| CN111935116A (en) * | 2020-07-30 | 2020-11-13 | 安徽华速达电子科技有限公司 | Intelligent optical network unit file loading method |
| CN111935116B (en) * | 2020-07-30 | 2023-04-14 | 安徽华速达电子科技有限公司 | Method for loading files of intelligent optical network unit |
| WO2022062126A1 (en) * | 2020-09-28 | 2022-03-31 | 西安热工研究院有限公司 | 5g-technology-based mobile monitoring system for gas film closed coal yard |
| CN112614328A (en) * | 2020-11-13 | 2021-04-06 | 国网河北省电力有限公司电力科学研究院 | Edge internet of things agent device |
| CN112610279A (en) * | 2020-12-18 | 2021-04-06 | 福州华虹智能科技股份有限公司 | Monitoring system for underground exploration based on Internet of things |
| CN112983549A (en) * | 2021-03-09 | 2021-06-18 | 中国矿业大学 | Overburden mining abscission layer dynamic development monitoring method |
| CN112983549B (en) * | 2021-03-09 | 2021-10-26 | 中国矿业大学 | Overburden mining abscission layer dynamic development monitoring method |
| US11943692B2 (en) | 2022-05-12 | 2024-03-26 | Teltrust Corporation | Emergency response using non-cellular long-range radio channel and emergency use wi-fi hotspot |
Also Published As
| Publication number | Publication date |
|---|---|
| CN108798787B (en) | 2023-08-01 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN108798787A (en) | Coal mine safety monitoring system based on LoRa and method | |
| CN108769921B (en) | Mine positioning system and method based on fusion of LoRa region and accurate positioning | |
| CN201378194Y (en) | High-voltage power transmission line monitoring system | |
| CN101995864B (en) | Monitoring system and method for distributed charging piles | |
| CN104426950B (en) | A kind of electric power Internet of Things intelligent communication method and system and intelligence communication gateway | |
| CN111427286A (en) | Intelligent remote electric energy monitoring system and monitoring method based on 5G communication | |
| CN101483567A (en) | High voltage electricity transmission line monitoring method based on wireless communication and optical communication | |
| CN208778042U (en) | Coal mine safety monitoring system based on LoRa | |
| CN110487350A (en) | A kind of mining under reservoir distribution water level monitoring and warning system and method | |
| CN109599940A (en) | A kind of distribution transforming status remote monitoring system and method based on LPWAN | |
| CN101431253A (en) | Low-voltage power distribution network data processing method, apparatus and system based on WSN | |
| CN102624426A (en) | Fire-fighting and lighting intelligent monitoring system on basis of power line communication and implementing method thereof | |
| CN103926896A (en) | Underground explosive-proof power source monitoring system and method based on network | |
| CN203689663U (en) | Self-networking air quality monitoring system | |
| CN206412838U (en) | Distribution automation system based on dual mode communication | |
| CN203193387U (en) | Information automatic publishing device based on power distribution network automatic control system | |
| CN109080485A (en) | Charging station is wireless three distant data receiving-transmitting methods | |
| CN109195115A (en) | The system and method for voice paging and broadcast is realized using narrowband network | |
| CN205880114U (en) | Join in marriage power system fault indicating system based on loRa communication technology | |
| CN101917211B (en) | Mine downhole intelligent wireless monitoring and positioning system base station | |
| CN203072165U (en) | Self-organizing wireless terminal and system based on WiFi | |
| CN203135590U (en) | Intelligent power grid integrated data acquisition system | |
| CN206559397U (en) | Communications equipment room power and environment centralized supervision system | |
| CN203313322U (en) | Video monitoring system based on wireless mesh network | |
| CN110605995A (en) | Electric vehicle charging pile control system and method based on Zigbee networking |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |