CN109270597A - A kind of mining industry security protection node for severe Convective Weather Warnings - Google Patents
A kind of mining industry security protection node for severe Convective Weather Warnings Download PDFInfo
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Abstract
The present invention provides a kind of mining industry security protection nodes for severe Convective Weather Warnings, comprising: the baroceptor for barometric information at monitoring node；For monitoring the sensor of thunder and lightning of thunder and lightning number and Ray Storm Front distance data；For obtaining the data of baroceptor and sensor of thunder and lightning according to preset monitoring cycle, and processing analysis is carried out to the data, judging whether there is strong convective weather in turn will arrive, and the PSoC module of warning information is issued when there is strong convective weather that will arrive；Baroceptor, sensor of thunder and lightning are connect with PSoC module, and host computer connects PSoC module by LoRa wireless communication module, and intelligent movable equipment connects PSoC module by bluetooth communication, and mining industry equipment is connect by fiber optic telecommunications module with PSoC module.Integrated level of the present invention is high, and outer dimension is small, low in cost, reliable performance, provides effective support for building mining industry field severe Convective Weather Warnings system.
Description
Technical field
The present invention relates to a kind of mining industry security protection nodes more particularly to one kind can be monitored early warning to strong convective weather
Mining industry security protection node.
Background technique
Strong convective weather is the drop strong in short-term for occurring within the scope of small mesoscale system, occurring with thunderstorm phenomenon
Water, Convective high wind etc..Its short duration but have it is sudden, be a kind of great meteorological disaster of destructiveness.Strong convection
The meteorological disasters such as heavy rainfall, thunder and lightning, the high wind of weather can bring biggish adverse effect to mining industry operation.Strong convective weather is led
The overland flow and osmosis of cause are likely to result in accident of caving in, seep water and pour water, and cause great personnel, property loss.
Multiple provinces and cities' safety supervisions department of China, which successively requires to implement to stop production during heavy rainfall, removes the regulation of people.Between Thundercloud medium cloud ground
Electron exchange that can be strong by generations such as lightning thunderbolts, and may by entering permeate or straight through track pipeline etc.
Up to tunnel depths, electromechanical, communication equipment is gently then damaged, it is heavy then cause fire, gas explosion.And high wind etc. also can be to ventage
The equipment such as system, derrick cause certain damage.
At this stage to the early warning of strong convective weather rely primarily on satellite, S-band and C-band Doppler radar,
The data that the modes such as face observation station obtain.But strong convective weather prediction theory is still insufficient perfect, satellite and weather radar number
According to range scale, observation cost and Meteorological Services mode there are also to be optimized, strong convective weather has certain sudden
With randomness, these reasons cause the quick warning aspect Shortcomings of the small scale of strong convective weather.Furthermore China's mining industry and petroleum
Enterprise branches out range in the whole world, and countries and regions locating for mining area and drilling area often do not have perfect weather warning
Service.Offshore drilling platform etc. is also difficult to obtain the effective early warning of Small and Medium Sized.With the overseas mining area of the enterprises such as CNOOC and oil field
The fast development of scale, it is more urgent to the early warning demand of Small and Medium Sized strong convective weather.
Feature-rich weather warning service can be fast and effeciently provided by technology of Internet of things, furthermore it is also expected
Have the characteristics that low in cost, monitored density is high, be easy to integrate linkage with existing equipment, is particluarly suitable for mine, offshore drilling
Platform etc. has the occasion of specific demand to use as important auxiliary Forewarning Measures small scale weather warning.With electronics skill
The development of art is expected to accurate measurements with strong convection by miniature, inexpensive, low-power consumption baroceptor and lightning sensors
The air pressure and thunder and lightning acute variation that weather occurs；And programmable system on chip (PSoC, Programmable System-On-
Chip) then highly integrated on a single chip to can configure analog- and digital- functions of the equipments, memory and microcontroller etc., pass through
Using IP kernel (Intellectual Property Core) development technique based on PSoC, can be realized on one " silicon wafer "
Customize the numerical model analysis embedded system of function.And the LoRa low-power consumption network technology towards next-generation Internet of Things is then easy to implement
Monitoring data interact reception and registration with warning information on a large scale.The stronger ability to work of intelligent movable equipment and human-computer interaction characteristic
The early warning when strong convection disaster arrives for individual is helped to realize to convey.It then can be by the reliable communication capacity of optical fiber
With compared with carrying out reliable data transmission in the environment of strong electromagnetic.
Based on above-mentioned technology, the present invention has designed and Implemented the strong convective weather that a kind of structure is simple, function suitability is strong
Mining industry security protection early warning node, the node are expected to provide small applicable scale, strong real-time, networking linkage ability for fields such as mining industry
High severe Convective Weather Warnings technological means.
Summary of the invention
The technical problem to be solved by the present invention is how to be based on technology of Internet of things, realize convenient for laying, there is stronger nothing
The mining industry security protection node of line communication capacity, within the scope of smaller scale occur, have larger destructive strong convective weather into
Row early warning.
In order to solve the above-mentioned technical problem, the technical solution of the present invention is to provide a kind of for severe Convective Weather Warnings
Mining industry security protection node characterized by comprising
Baroceptor for the barometric information at monitoring node；
For monitoring the sensor of thunder and lightning of thunder and lightning number and Ray Storm Front distance data；
For obtaining the data of baroceptor and sensor of thunder and lightning according to preset monitoring cycle, and to described
Data carry out processing analysis, and then judge whether there is strong convective weather and will arrive, and when there is strong convective weather that will arrive
Issue the PSoC module of warning information；
Baroceptor, sensor of thunder and lightning are connect with PSoC module, and host computer is connected by LoRa wireless communication module
PSoC module, intelligent movable equipment by bluetooth communication connect PSoC module, mining industry equipment by fiber optic telecommunications module with
The connection of PSoC module.
Preferably, further include system power supply module, system power supply module connect the baroceptor, sensor of thunder and lightning,
PSoC module, LoRa wireless communication module, bluetooth communication and fiber optic telecommunications module.
Preferably, the PSoC module be node hard core control scheduling portion, PSoC module by digital interface according to
Preset monitoring cycle obtains the data of baroceptor and sensor of thunder and lightning, by the data of acquisition by LoRa without
Line communication module is sent to host computer, and the data are cached in the fifo structure of therein；PSoC module is to the data
Processing analysis is carried out, and then judge whether there is strong convective weather to arrive.
Preferably, the PSoC module is based on barometric information and lightning data is made whether will there is strong convective weather
Judgement, the specific method is as follows:
Before strong convective weather generation, corresponding variation can occur for the ground observation value of air pressure, be more than daily air pressure change
Variation more than one standard deviation is characterized with transformation abnormal index PCR；
The PCR at T moment is calculated according on ground by minus 3 hours transformations that barometric observation means obtain:
In formula (1), PCR (T) is the PCR value at T moment, Δ P3It (T) is minus 3 hours transformation values at T moment,For day
Normal minus 3 hours transformation mean values；N is in the daily minus 3 hours transformations observed value number obtained by observation method；
PCR (T) is a dimensionless number, is occurred if any strong convection, and value is negative value；The size of PCR (T) absolute value is reacted
The severe degree of air pressure change；PCR numerical value is lower, and strong convective weather is more violent；In design of node, based on PCR value will be strong
Convection current Alert Level is divided into following level:
The relationship of table 1 PCR and alert levels
Strong convective weather also tends to when occurring along with strong lightening activity, so becoming monitoring in minus air pressure in 3 hours
On the basis of introduce the monitoring to lightning activity in cloud layer and between cloud ground, the auxiliary reference as severe Convective Weather Warnings；Using sudden strain of a muscle
Electric 8 subthreshold methods, it is contemplated that the safety supervision range that each early warning node is responsible for usually within several square kilometres, so
It is the pre-warning signal of binary logic amount according to output given below:
In formula (2), LR (T) is that the lightning early warning at T moment triggers logical value, triggering alarm when being True；TH8 is 8
The judgement result of secondary lightning threshold value；M is the lightning range averaging factor, the integer that value is >=1；DjFor lightning sensors detection
The Ray Storm Front distance arrived, K are lightning range estimation threshold value.
It is highly preferred that the barometric information caches nearest 4 hour data, the lightning data is according to lightning range averaging
Factor M is chosen, but the lightning data has to be larger than 8 to realize 8 lightning threshold value judgements.
It is highly preferred that alerting based on the alarm as caused by air pressure change, alarm caused by being changed by thunder and lightning is accused for auxiliary
Alert, the two is all warning information.
Preferably, when there is strong convective weather that will arrive, PSoC module passes through LoRa wireless communication module to host computer
Warning information is issued, warning information is issued to the intelligent movable equipment being connected by bluetooth communication, it is logical by optical fiber
Believe module proximally and the mining industry equipment on periphery issues warning information.
It is highly preferred that if at a time monitoring parameters will not excite severe Convective Weather Warnings, PSoC module if, is adjusted back
The time of last time triggering early warning, if less than one buffer circle in interval, PSoC module will issue warning information.
Preferably, the electric power thus supplied of the PSoC module also monitoring node, such as encounters electric voltage exception situation, PSoC module
Power supply warning information is issued to host computer also by LoRa wireless communication module.
Preferably, NFC label of the intelligent movable equipment by scan arrangement in node surface obtains bluetooth channel radio
Believe the link information of module, and is connect with reference to the link information with node.
Preferably, the PSoC module passes through digital interface with electromagnetic isolation ability and the fiber optic telecommunications module
Connection.
Preferably, the Bluetooth wireless communication module uses discrete module combination 2.4GHz glass reinforced plastic omnidirectional antenna, or
Cooperate the antenna on PCB using the bluetooth module for being integrated in PSoC inside modules.
It is highly preferred that the antenna on the PCB is MIFA antenna or Surface Mount ceramic antenna.
It is highly preferred that the system power supply module includes 220V mains-supplied source, 220V mains-supplied source connects AC-DC
Module, AC-DC module connect Voltage stabilizing module.
It is highly preferred that the system power supply module includes solar panel, solar panel connects solar control
Device, solar controller connect Voltage stabilizing module.
Preferably, the baroceptor is with I2C or UART digital data interface, and built-in compensation circuit sum number
According to the baroceptor of format conversion circuit.
Preferably, the sensor of thunder and lightning is the sensor of thunder and lightning with I2C or UART digital data interface.
Compared with prior art, having as follows provided by the present invention for the mining industry security protection node of severe Convective Weather Warnings has
Beneficial effect:
1, node integrated level is high, and outer dimension is small, low in cost, reliable performance；
2, node can a situation arises that prediction and issues early warning at strong convective weather according to air pressure change and thunder and lightning, and providing can
The strong convective weather safety precautions safeguard measure leaned on thereby reduces the mining safety accident wind when strong convective weather occurs
Danger；
3, node is using strong convective weather monitoring and warning algorithm that is simple, taking up less resources is realized, to be embedded in low cost
Realize that simple and reliable monitoring and warning provides foundation on formula platform；
4, node can realize the layout of low cost, high granularity in the larger context, effectively increase coverage, increase
The accuracy for having added whole monitoring early warning has great benefit to the strong convective weather monitoring and warning of Small and Medium Sized；
5, node constructs having between node and host computer and intelligent movable equipment by LoRa technology and Bluetooth technology
Data channel is imitated, can be provided respectively by LoRa low-power consumption wide area network and bluetooth to host computer and the intelligent movable equipment of access
Monitoring data and early warning alarm, form from regional macro integrally to the stratification monitoring and warning distribution means of practitioner's individual；
6, node, which also has, carries out information exchange and effectively control proximal end and periphery mining industry equipment with intelligent movable equipment
Ability, digital interface and fiber information channel with high electromagnetism interference are used for proximally and peripheral equipment transmission early warning are believed
Breath realizes highly reliable and real time implementation equipment early warning distribution channel, facilitates to construct mining industry field severe Convective Weather Warnings
System provides effectively support.
Detailed description of the invention
Fig. 1 is the mining industry security protection nodal function schematic diagram for severe Convective Weather Warnings；
Fig. 2 is the mining industry security protection node basic structure schematic diagram for severe Convective Weather Warnings；
Fig. 3 is the mining industry security protection node work flow diagram for severe Convective Weather Warnings；
Fig. 4 is a kind of mining industry security protection node structure schematic diagram for severe Convective Weather Warnings that embodiment 1 provides；
Fig. 5 is a kind of mining industry security protection node structure schematic diagram for severe Convective Weather Warnings that embodiment 2 provides.
Specific embodiment
Present invention will be further explained below with reference to specific examples.
Strong convective weather often brings larger harm to Mining Market and mining industry practitioner's personal safety.In order to can be with
Realize effective prevention to strong convective weather, the present invention it is quasi- by with higher early warning accuracy, it is low in cost, lay it is convenient,
Information exchange ability strong " the mining industry security protection node for severe Convective Weather Warnings " provides reliable strong convective weather safety
Prevention & protection measure, and then reduce the mining safety accident risk when strong convective weather occurs.
As shown in Figure 1, realizing the present invention is based on technology of Internet of things convenient for laying, the mine with stronger wireless communication ability
Industry security protection node to occurring within the scope of smaller scale, there is larger destructive strong convective weather to carry out early warning, and can divide
Not Tong Guo LoRa low-power consumption wide area network and bluetooth to host computer and the intelligent movable equipment of access provide monitoring data and pre- warning
It is alert.This exterior node also supports to pass through digital interface and optical fiber difference proximally and mining industry equipment in periphery provides warning information.
One, strong convective weather prediction occurring decision algorithm
Whether in order to relatively accurately judge that strong convective weather occurs in advance, strong convective weather hair used in the present invention
Raw early warning decision algorithm carries out the judgement of strong convection generation based on air pressure change parameter and thunder and lightning running parameter.In strong convection day
Before gas occurs, corresponding variation often occurs for the ground observation value of air pressure.Occur in Hubei Jianli, lead to east within such as 2015
Before the strong convective weather of the asterisk sinking of side occurs, Jianli is once with shifting to an earlier date the PCR for occurring stronger degree for 3-4 hours
(transformation abnormal index, Pressure Change Range, more than variation more than one standard deviation of daily air pressure change).And
The PCR variation for also having more violent before the strong convection spout strong wind of Yancheng, Jiangsu Province occurs occurs in late June, 2016.
The PCR at T moment can be calculated according on ground by minus 3 hours transformations that barometric observation means obtain:
In formula (1), PCR (T) is the PCR value at T moment, and molecule is minus 3 hours transformations value Δ P at T moment3(T) and day
Normal minus 3 hours transformation mean valuesDifference.Denominator is negative the standard deviations of 3 small time series, and N is in the day obtained by observation method
Normal minus 3 hours transformations observed value number.PCR (T) is a dimensionless number, is occurred if any strong convection, and value is negative value.PCR(T)
The severe degree of the size reaction pressure variation of absolute value.PCR numerical value is lower, and strong convective weather is more violent.In design of node
In, strong convection Alert Level is divided into following level by based on PCR value:
The relationship of table 1 PCR and alert levels
Strong convective weather also tends to when occurring along with strong lightening activity, it is possible to become in minus air pressure in 3 hours and supervise
The monitoring to lightning activity in cloud layer and between cloud ground, the auxiliary reference as severe Convective Weather Warnings are introduced on the basis of survey.It borrows
Simple 8 subthreshold method of lightning is helped, the predictablity rate in hundred kilometers is greater than 80%, and false alarm rate is less than 35%.Furthermore it examines
Safety supervision range that each early warning node is responsible for is considered usually within several square kilometres, it is possible to according to given below
Output is the pre-warning signal of binary logic amount:
In formula (2), LR (T) is that the lightning early warning at T moment triggers logical value, triggering alarm when being True.TH8 is 8
The judgement result of secondary lightning threshold value；M is the lightning range averaging factor, and >=1 integer may be selected in value；DjFor lightning sensors
The Ray Storm Front distance detected, K are lightning range estimation threshold value.In formula (2), right side first item corresponds to strong thunder
Decision value whether electrical activity occurs, Section 2 correspond to the decision value of lightening activity Yu node prewarning area degree of closeness.When upper
When stating two conditions while meeting, the strong convection additional alarm based on lightening activity is issued.
Two, severe Convective Weather Warnings mining industry security protection node structure:
In conjunction with Fig. 2, the severe Convective Weather Warnings mining industry security protection node in the present invention is by PSoC and peripheral circuit module, gas
Pressure sensor, sensor of thunder and lightning, LoRa wireless communication module, bluetooth communication and NFC label, fiber optic telecommunications module, system
Power supply module composition.
PSoC is the hard core control scheduling portion of node.PSoC is by digital interface according to preset monitoring cycle
The data of acquisition are sent to by LoRa wireless communication module upper by the data for obtaining baroceptor and sensor of thunder and lightning
Machine, and it is data cached in fifo structure inside it (barometric information recommends to cache nearest 4 hour data, lightning data according to
M number in algorithm is chosen, but has to be larger than 8 to realize 8 lightning threshold value judgements, recommends to cache nearest 64 lightnings hair
Raw time, distance).
In conjunction with Fig. 3, when PSoC is calculated by bringing the data newly obtained into aforementioned algorism, discovery has strong convective weather will
After arriving, PSoC then passes through LoRa wireless communication module and bluetooth communication to host computer and the mobile intelligence being connected into
Energy equipment issues warning information and (alerts based on the alarm as caused by air pressure change, alert caused by being changed by thunder and lightning and accuse for auxiliary
Alert, the two is all warning information), and by the way that there is digital interface and optic module compared with strong electromagnetic isolating power respectively to close
End and periphery mining industry equipment issue alarm command.If severe Convective Weather Warnings, PSoC will not be excited in the moment monitoring parameters
Then adjust back the time of last triggering early warning.If being spaced less than one buffer circle (usually several monitoring cycle durations),
Then PSoC will issue warning information.PSoC is responsible for control scheduling LoRa, digital interface, bluetooth and fiber optic telecommunications module.PSoC
The also electric power thus supplied of monitoring node, such as low-voltage abnormal conditions are encountered, PSoC is upward also by LoRa communication
Position machine issues power supply warning information.
Since part mining equipment can generate a degree of electromagnetic interference at work, so being designed in node interface
Centainly electromagnetic isolation is considered with needing to be included in realization.In PSoC peripheral circuit for connect proximal device have compared with
The digital interface of strong electromagnetic isolating power can be by using isolated form digital interface module compact-sized, that isolation effect is good
It realizes.
Baroceptor is for the barometric information around monitoring node.Baroceptor, which is recommended to select, has I2C, UART
Etc. simple digitals data-interface, have compared with wide working range, and the model of built-in compensation circuit and data format converting.
Data therefrom are calculated for realizing the strong convective weather PCR become based on minus air pressure in 3 hours.Baroceptor also needs to have
There are lesser volume, low-power consumption and low cost.
Sensor of thunder and lightning is for monitoring thunder and lightning number and Ray Storm Front distance data, Ray Storm Front distance
Data can be step value or true value.Its digital interface that also I2C, UART etc. should be supported relatively simple, to realize and PSoC
Connection.Calculating needed for the data obtained as sensor of thunder and lightning are used to carry out formula (2).Sensor of thunder and lightning should also meet low
The requirement of power consumption, small size, low cost.
LoRa wireless communication module is for realizing the wireless transmission between node and host computer.LoRa communication
Tens of square kilometres of range can be effectively covered, this can substantially meet the monitoring covering demand in most of mining areas.LoRa without
ID of the line communication module in LoRa net is set as identical as node ID.LoRa gateway is connect with host computer.Node is in routine work
In by LoRa channel to host computer send have self-ID information monitoring data.If monitoring parameters trigger strong convection day
Gas early warning alarm, node issue warning information to host computer also by LoRa channel.LoRa wireless communication module should select to support
Transparent transmission, and the model of spreading factor can be flexibly adjusted according to channel conditions.
Bluetooth wireless communication module is for connecting node and intelligent movable equipment.Intelligent movable equipment passes through scan arrangement
Bluetooth connection information is obtained in the NFC label of node surface, and is connect with reference to the information with node.In the intelligent movable equipment
It is in node in the time that bluetooth is effectively connect, if monitoring parameters are set out, node severe Convective Weather Warnings, node pass through
Bluetooth issues warning information to intelligent movable equipment.Discrete module combination 2.4GHz glass may be selected in Bluetooth wireless communication module
Glass steel omnidirectional antenna, also using MIFA antenna or Surface Mount ceramics day on the bluetooth module cooperation PCB being integrated in inside PSoC
Line.The former is suitable for realizing the covering of the bluetooth in larger range, and the latter be then conducive to realize higher integrated level and save at
This.
Since node periphery mining equipment etc. is possible to apart from node far up to hundreds of meters, if connected using common cable,
Then it is difficult to avoid that mineral electromechanical equipment and thunder and lightning weather etc. on influence caused by signal transmission.And the anti-line compared with strong electromagnetic
Cable then needs higher cost.So using optical fiber solutions connecting node and peripheral equipment in design.Node is converted to alarm signal
Optical signal, by it is low in cost, vulnerable to the optical fiber of electromagnetic interference be not sent to peripheral equipment.And peripheral equipment is then from being attached thereto
Light delivery module separate port or bus on obtain warning information.May be selected to support in the design larger transmission range, with
The simple fiber optic telecommunications module of embedded device interface (also need to take into account in some scenarios support simple structure number bus and
With the requirement compared with strong electromagnetic isolating power), and routine 1550nm telecommunication optical fiber or plastic optical fiber structure are selected according to specific occasion
Build optical communication data transmission channel.
System power supply module provides reliable and stable direct current supply for node.In design can according to concrete condition use by
220V mains-supplied or solar powered mode.The occasion that the former is suitable for having stable 220V power supply, passes through AC-DC module
Obtain stable DC power supply supply.It should be noted that due to often there is a degree of interference, institute in mining environment
Should also use the AC-DC module with certain battery isolation characteristic.And the latter is by combining solar battery, solar energy control
Device and lead-acid battery processed, for be laid in cannot achieve alternating current supply node energy is provided.It is supplied to obtain more stable direct current
Electricity, can be after AC-DC module and after the output of solar controller, using linear voltage stabilization device, thus to obtain more pure steady
Fixed power supply.
Illustrate specific module configuration mode of the invention with two specific embodiments below.
Embodiment 1
The present embodiment provides a kind of mining industry security protection node for severe Convective Weather Warnings towards conventional application,
As shown in Figure 4.In implementation, PSoC chip selects the CY8C3866AXI-040 type that Cypress company produces, TQFP-100 is encapsulated
PSoC3 programmable system on chip chip.It has been internally integrated operating rate up to the 8051 solid cores of 67MHz, and there are 24 to lead to
With digital module (UDB).Using above-mentioned resource, operation needed for severe Convective Weather Warnings algorithm can be effectively performed and deposit
Storage operation.In implementation, working frequency reference frequency is the external active clock crystal oscillator of 24MHz.Its a variety of number supported connects
Mouth is also beneficial to connection digital sensor and communication module.It is followed furthermore with the building input of its internal arithmetic amplifier module
Device is to monitor the supply voltage electric resistance partial pressure value with analog input, for finding the abnormal conditions such as low-voltage.
2 road RS232-UART interfaces have also been reserved in node for connecting proximal device, use one piece of Guangzhou in interface
The RSM232D type isolated form interface module far produced is caused to provide the electromagnetism for being up to 2500VDC while realizing protocol conversion
Isolation.RSM232D UART interface corresponding with PSoC3 is connected.
The AS32-DTU-1W type LoRa low-power consumption wan communication DTU that multi-node wireless communication selects the credit of Chengdu pool to produce.
The DTU is designed based on the SX1278 chip of Semtech.The hypersensitivity of -140dBm can be realized by it.AS32-DTU-1W
Maximum communication distance in maximum transmission power is up to 8km.The UART digital interface of AS32-DTU-1W and PSoC3 passes through
The connection of RSM232D interface module.
Bluetooth module selects Wei Xin company to produce, supports the RN4020 type bluetooth module of 4.1 standard of bluetooth, the choosing of NFC label
Select NTAG216 label.PSoC3 instructs control management RN4020 by ASCII by UART interface.It will be with node indigo plant in use
Tooth connect required for information write-in NFC label in, intelligent movable equipment by scanning obtain Bluetooth information, and with node phase
Even.If any alarm triggered, then data are sent to intelligent movable equipment according to scheduled alarm format by RN4020 by node.
Optical communications module selection space Thailand UT-277SM serial ports turns fiber optical transceiver.Two ST connectors of fiber selection
The single mode quartz telecommunication optical fiber of 1550nm is respectively as uplink and downlink optical fiber.Using UT-277SM, peripheral equipment and node
Distance is maximum up to 20km.Asynchronous point-to-point transmission mode is used in implementation, and a UT- is respectively installed at peripheral equipment and node
277SM forms corresponding optical fibre channel.The UART digital interface of UT-277SM and PSoC3 is connected by RSM232D interface module
It connects.
Early warning node baroceptor selects MPL3115A2 baroceptor.MPL3115A2 can measure 20kPa extremely
Ambient atmosphere pressure within the scope of 110kPa.It is integrated with full compensation circuit and data format converting inside it, it can be effective
The variation of the external environmental factors such as temperature is inhibited to influence caused by its barometric surveying precision.Furthermore MPL3115A2 baroceptor
Wider temperature working range, the encapsulation simplified are also beneficial to realize the application towards outdoor wireless early warning node.Pass through
The barometric information of MPL3115A2 acquisition simultaneously combines formula (1), can be obtained the early warning value become based on air pressure.MPL3115A2 with
PSoC3 is connected by I2C bus.
Sensor of thunder and lightning needs to monitor thunder and lightning number and Ray Storm Front distance data, to support based on formula (2)
Early warning trigger value calculates.AS3935 type sensor of thunder and lightning is selected in design.It can be detected simultaneously occurs between cloud ground between cloud
Lightening activity, and can be using 1km as the Ray Storm forward position within step value estimation 40km.Especially AS3935 can also be by interior
Algorithms identify and inhibit the interference signal of the generations such as motor, this characteristic is very suitable to Mining Market environment.AS3935 is same
Data communication is carried out by I2C and PSoC.
The WAN20S12 isolated supplies mould of 3000VAC is ranged up in implementation using Wei Shi company product, isolation voltage
220V alternating current is converted to 12VDC power supply by block.12V power supply is respectively AS32-DTU-1W and UT-277SM power supply, and is passed through
Wei Shi company produce WD5-12S5 type DC-DC power module and LM1117-3.3V linear voltage stabilization be converted to 3.3VDC stablize it is defeated
Out, it powers for PSoC3 and peripheral circuit, sensor, bluetooth module etc..12V voltage by 1:4 electric resistance partial pressure by voltage with
Enter PSoC3 with device.
Embodiment 2
Application of the present embodiment towards micromation low cost.PSoC selects Cypress company product, QFN in design
The CY8C4248LQI-BL583 type PSoC4 chip of encapsulation.CY8C4248LQI-BL583 has been internally integrated based on ARM
The MCU of Cortex-M0 structure, support the communication module of bluetooth BLE 4.2, operational amplifier, digital communication protocol (I2C,
UART, SPI), the support of the design of node required function such as general digital module.Work clock then uses 24MHz passive in implementation
Surface Mount crystal oscillator.Follower is constructed for identical as previous embodiment by way of monitoring supply voltage operational amplifier.
PSoC4 constructs two-way RS232 serial data channel using UART interface connection MAX3232 in node, for connecting
Outer portion near end equipment.
The AS62-T30 type LoRa low-power consumption wan communication module that multi-node wireless communication selects the credit of Chengdu pool to produce.It should
Module is designed based on the SX1278 chip of Semtech.AS62-T30 is connect with PSoC4 by UART digital interface.
Node optical communications module is produced using AVAGO, suitable for the HFBR-15X7Z type LED of 1mm plastic optical fiber.PSoC4
The warning information for directly sending predetermined format by the variation of pin logic level by 74ACTQ00 logic gates, without
Need complicated protocol conversion.
Due to containing bluetooth module inside CY8C4248LQI-BL583, its internal bluetooth can be directly utilized in implementation
Module constructs bluetooth data communication channel.The transmitting-receiving that MIFA antenna is used for Bluetooth signal is formed using PCB layout in implementation.
Node baroceptor, sensor of thunder and lightning, the embodiment of NFC label are same as Example 1.
The present embodiment interior joint is using solar powered.40W single-crystalline-silicon solar-cell panel passes through solar radiation energy
Solar controller is stored in lead-acid battery, and exports 12VDC voltage.The WD5-12S5 type DC- to produce by Wei Shi company
DC power module and LM1117-3.3V linear voltage stabilization are converted to 3.3VDC and stablize output, be PSoC and peripheral circuit, sensor,
The power supply such as bluetooth module, LoRa communication module.12V voltage enters PSoC4 by voltage follower by 1:4 electric resistance partial pressure and uses
In monitoring supply voltage.
The above, only presently preferred embodiments of the present invention, not to the present invention in any form with substantial limit
System, it is noted that, can also be under the premise of not departing from the method for the present invention for those skilled in the art
Several improvement and supplement are made, these are improved and supplement also should be regarded as protection scope of the present invention.All technologies for being familiar with this profession
Personnel make when using disclosed above technology contents without departing from the spirit and scope of the present invention
The equivalent variations of a little variation, modification and evolution is equivalent embodiment of the invention；Meanwhile all essence according to the present invention
Technology still falls within technical solution of the present invention to the variation, modification and evolution of any equivalent variations made by above-described embodiment
In the range of.
Claims (10)
1. a kind of mining industry security protection node for severe Convective Weather Warnings characterized by comprising
Baroceptor for the barometric information at monitoring node；
For monitoring the sensor of thunder and lightning of thunder and lightning number and Ray Storm Front distance data；
For according to preset monitoring cycle obtain baroceptor and sensor of thunder and lightning data, and to the data into
It goes and handles analysis, and then judge whether there is strong convective weather to arrive, and issue and accuse when there is strong convective weather that will arrive
The PSoC module of alert information；
Baroceptor, sensor of thunder and lightning are connect with PSoC module, and host computer connects PSoC by LoRa wireless communication module
Module, intelligent movable equipment connect PSoC module by bluetooth communication, and mining industry equipment passes through fiber optic telecommunications module and PSoC
Module connection.
2. a kind of mining industry security protection node for severe Convective Weather Warnings as described in claim 1, it is characterised in that: further include
System power supply module, system power supply module connect the baroceptor, sensor of thunder and lightning, PSoC module, LoRa wireless communication
Module, bluetooth communication and fiber optic telecommunications module.
3. a kind of mining industry security protection node for severe Convective Weather Warnings as claimed in claim, it is characterised in that: described
PSoC module is the hard core control scheduling portion of node, and PSoC module is obtained by digital interface according to preset monitoring cycle
The data of acquisition are sent to host computer by LoRa wireless communication module by the data for taking baroceptor and sensor of thunder and lightning,
And the data are cached in the fifo structure of therein；PSoC module carries out processing analysis to the data, and then judges
Whether there is strong convective weather that will arrive.
4. a kind of mining industry security protection node for severe Convective Weather Warnings as claimed in claim 1 or 3, it is characterised in that: institute
It states PSoC module and is made whether the judgement that will there is strong convective weather to occur based on barometric information and lightning data, specific method is such as
Under:
Before strong convective weather generation, corresponding variation can occur for the ground observation value of air pressure, be more than daily air pressure change one
Variation more than standard deviation is characterized with transformation abnormal index PCR；
The PCR at T moment is calculated according on ground by minus 3 hours transformations that barometric observation means obtain:
In formula (1), PCR (T) is the PCR value at T moment, Δ P3It (T) is minus 3 hours transformation values at T moment,It is daily minus 3
Hour transformation mean value；N is in the daily minus 3 hours transformations observed value number obtained by observation method；
PCR (T) is a dimensionless number, is occurred if any strong convection, and value is negative value；The size reaction gas buckling of PCR (T) absolute value
The severe degree of change；PCR numerical value is lower, and strong convective weather is more violent；In design of node, based on PCR value is alert by strong convection
Report partition of the level is following level:
The relationship of table 1 PCR and alert levels
Strong convective weather also tends to when occurring along with strong lightening activity, so becoming the basis of monitoring in minus air pressure in 3 hours
The upper monitoring introduced to lightning activity in cloud layer and between cloud ground, the auxiliary reference as severe Convective Weather Warnings；Using lightning 8 times
Threshold method, it is contemplated that the safety supervision range that each early warning node is responsible for is usually within several square kilometres, so according under
Formula provides the pre-warning signal that output is binary logic amount:
In formula (2), LR (T) is that the lightning early warning at T moment triggers logical value, triggering alarm when being True；TH8 is 8 sudden strains of a muscle
The judgement result of electric threshold value；M is the lightning range averaging factor, the integer that value is >=1；DjThe thunder detected for lightning sensors
The sudden and violent Front distance of electric wind, K are lightning range estimation threshold value.
5. a kind of mining industry security protection node for severe Convective Weather Warnings as claimed in claim 4, it is characterised in that: the gas
Nearest 4 hour data of data buffer storage is pressed, the lightning data is chosen according to lightning range averaging factor M, but the thunder and lightning number
According to having to be larger than 8 to realize the judgement of 8 lightning threshold values.
6. a kind of mining industry security protection node for severe Convective Weather Warnings as claimed in claim 4, it is characterised in that: by air pressure
It is alerted based on alarm caused by variation, alarm caused by being changed by thunder and lightning is minor alarm, and the two is all warning information.
7. a kind of mining industry security protection node for severe Convective Weather Warnings as described in claim 1, it is characterised in that: strong when having
When convection weather will arrive, PSoC module issues warning information to host computer by LoRa wireless communication module, passes through bluetooth
Communication module issues warning information to the intelligent movable equipment that has been connected into, proximally and the mine on periphery by fiber optic telecommunications module
Industry equipment issues warning information；
If at a time monitoring parameters will not excite severe Convective Weather Warnings, PSoC module if, adjusts back last triggering early warning
Time, if less than one buffer circle in interval, PSoC module will issue warning information.
8. a kind of mining industry security protection node for severe Convective Weather Warnings as described in claim 1, it is characterised in that: described
The electric power thus supplied of PSoC module also monitoring node such as encounters electric voltage exception situation, and PSoC module is also by LoRa radio communication mold
Block issues power supply warning information to host computer.
9. a kind of mining industry security protection node for severe Convective Weather Warnings as described in claim 1, it is characterised in that: the shifting
NFC label of the dynamic smart machine by scan arrangement in node surface obtains the link information of Bluetooth wireless communication module, and joins
The link information is examined to connect with node.
10. a kind of mining industry security protection node for severe Convective Weather Warnings as described in claim 1, it is characterised in that: described
PSoC module is connect by the digital interface with electromagnetic isolation ability with the fiber optic telecommunications module.
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