CN106324203A - Long-distance toxic gas detection system based on unmanned aerial vehicle - Google Patents
Long-distance toxic gas detection system based on unmanned aerial vehicle Download PDFInfo
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- CN106324203A CN106324203A CN201610916552.6A CN201610916552A CN106324203A CN 106324203 A CN106324203 A CN 106324203A CN 201610916552 A CN201610916552 A CN 201610916552A CN 106324203 A CN106324203 A CN 106324203A
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- 239000002341 toxic gas Substances 0.000 title claims abstract description 207
- 238000001514 detection method Methods 0.000 title claims abstract description 38
- 239000007789 gas Substances 0.000 claims description 47
- 231100000614 poison Toxicity 0.000 claims description 36
- 230000007096 poisonous effect Effects 0.000 claims description 33
- 239000011324 bead Substances 0.000 claims description 17
- 230000008878 coupling Effects 0.000 claims description 13
- 238000010168 coupling process Methods 0.000 claims description 13
- 238000005859 coupling reaction Methods 0.000 claims description 13
- 238000012545 processing Methods 0.000 claims description 10
- 230000005540 biological transmission Effects 0.000 claims description 9
- 238000004458 analytical method Methods 0.000 claims description 5
- 239000003086 colorant Substances 0.000 claims description 3
- 238000004868 gas analysis Methods 0.000 abstract description 2
- 239000003990 capacitor Substances 0.000 description 17
- 238000002955 isolation Methods 0.000 description 17
- 230000005611 electricity Effects 0.000 description 7
- 238000010586 diagram Methods 0.000 description 6
- 238000006243 chemical reaction Methods 0.000 description 5
- 238000000034 method Methods 0.000 description 4
- 230000009467 reduction Effects 0.000 description 4
- 239000000126 substance Substances 0.000 description 4
- 238000011835 investigation Methods 0.000 description 3
- 239000002574 poison Substances 0.000 description 3
- 241000208340 Araliaceae Species 0.000 description 2
- 235000005035 Panax pseudoginseng ssp. pseudoginseng Nutrition 0.000 description 2
- 235000003140 Panax quinquefolius Nutrition 0.000 description 2
- 238000004891 communication Methods 0.000 description 2
- 238000003795 desorption Methods 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 238000001914 filtration Methods 0.000 description 2
- 230000009975 flexible effect Effects 0.000 description 2
- 235000008434 ginseng Nutrition 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- VNWKTOKETHGBQD-UHFFFAOYSA-N methane Chemical compound C VNWKTOKETHGBQD-UHFFFAOYSA-N 0.000 description 2
- 238000012856 packing Methods 0.000 description 2
- 230000001681 protective effect Effects 0.000 description 2
- 241000894007 species Species 0.000 description 2
- 241000196324 Embryophyta Species 0.000 description 1
- 241001465754 Metazoa Species 0.000 description 1
- 238000010521 absorption reaction Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 239000003034 coal gas Substances 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 230000003111 delayed effect Effects 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 238000004020 luminiscence type Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000003032 molecular docking Methods 0.000 description 1
- 238000012544 monitoring process Methods 0.000 description 1
- 230000004899 motility Effects 0.000 description 1
- 239000003345 natural gas Substances 0.000 description 1
- 230000000149 penetrating effect Effects 0.000 description 1
- 231100000572 poisoning Toxicity 0.000 description 1
- 230000000607 poisoning effect Effects 0.000 description 1
- 230000008569 process Effects 0.000 description 1
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N33/00—Investigating or analysing materials by specific methods not covered by groups G01N1/00 - G01N31/00
- G01N33/0004—Gaseous mixtures, e.g. polluted air
- G01N33/0009—General constructional details of gas analysers, e.g. portable test equipment
- G01N33/0062—General constructional details of gas analysers, e.g. portable test equipment concerning the measuring method or the display, e.g. intermittent measurement or digital display
- G01N33/0063—General constructional details of gas analysers, e.g. portable test equipment concerning the measuring method or the display, e.g. intermittent measurement or digital display using a threshold to release an alarm or displaying means
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Abstract
The invention discloses a long-distance toxic gas detection system based on an unmanned aerial vehicle. A toxic gas detector for acquiring toxic gas data of the position of the unmanned aerial vehicle in real time is arranged on the unmanned aerial vehicle; a toxic gas analysis unit comprises a toxic gas data receiving module, a toxic gas variety judging module, a toxic gas concentration calculating module, a warning value setting module and an alarm module, wherein the toxic gas data receiving module is used for receiving toxic gas data; the toxic gas variety judging module is used for judging the variety of toxic gas according to the toxic gas data; the toxic gas concentration calculating module is used for calculating the concentration value of the toxic gas of the current variety; the warning value setting module is used for setting the warning value of each variety of toxic gas; and the alarm module is used for comparing the concentration value of the toxic gas of the current variety with the warning value of the toxic gas, and if the concentration value exceeds the warning value, outputting alarm information. According to the invention, the toxic gas detector is applied to the unmanned aerial vehicle so as to replace workers for detecting toxic gas by virtue of the flexibility and maneuverability of the unmanned aerial vehicle, so that the characteristics of high safety, strong maneuverability, high efficiency and the like are realized.
Description
Technical field
The present invention relates to toxic gas detection field, a kind of remote poisonous gas detection system based on unmanned plane
System.
Background technology
Toxic gas, as the term suggests, it is simply that human body is produced harm, it is possible to cause the gas of people's poisoning.Institute in life at present
The article used are most to be made up of chemical substance or synthesizes, the raising required quality of the life along with people so that chemical industry is sent out
Open up more and more faster.But in industrial processes, often relate to gaseous matter when reaction, these gaseous matters just wrap
Include the toxic gas for reaction and the toxic gas of generation during reaction.If directly the garbage containing toxic gas directly being arranged
Put, then human body, animals and plants and environment can be affected.
It addition, along with the development of science and technology, the imflammable gas such as natural gas, coal gas has come into our life and life
Produce.On the one hand imflammable gas can burn, and life and production to us bring convenience, on the other hand some imflammable gas
It is poisonous to human body or environment, also brings a lot of harm.The leakage of poisonous imflammable gas can produce serious peace
Full hidden danger.
But, traditional toxic gas harvester is typically all fixing use or hand-held use, and mobility is not strong, motility
Difference.For dangerous higher places such as toxic gas leakage are on-the-spot, traditional toxic gas detection system can not largely effective and
It is safely completed detection work, possibly cannot can complete toxic gas detection task because of the restriction of site environment of fixed place and timely.
Summary of the invention
The goal of the invention of the present invention is: for the problem of above-mentioned existence, it is provided that a kind of based on unmanned plane have at a distance
Poisonous gas detection system, applies on unmanned plane by toxic gas harvester, utilizes the flexible property of unmanned plane, replaces artificial
Carry out toxic gas detection, there is safety height, mobility strong, efficiency high.
The technical solution used in the present invention is as follows: a kind of remote poisonous gas detection system based on unmanned plane, described
System includes unmanned plane, toxic gas detector and toxic gas analytic unit；Wherein, described toxic gas detector is arranged on
On unmanned plane, toxic gas detector is for the toxic gas data of Real-time Collection unmanned plane present position.
Described toxic gas analytic unit at least includes with lower module:
1. toxic gas data reception module, is used for connecting toxic gas detector, and receives what toxic gas detector gathered
Toxic gas data；
2. toxic gas species judge module, for judging the kind of toxic gas according to toxic gas data；
3. concentration of toxic gases computing module, for calculating the concentration value of the toxic gas of present kind；
4. warning value arranges module, for arranging the warning value of every kind of toxic gas；
5. alarm module, the warning value of concentration value with this kind of toxic gas for comparing the toxic gas of present kind, if should
Concentration value exceedes this warning value, then export warning message.
Based on above-described embodiment, further, described toxic gas data reception module includes on-off control submodule, uses
In the duty of control toxic gas detector, carry out detection of gas including starting toxic gas detector, stop there is poison
Bulk detector carries out detection of gas and controls alternately detection between multiple toxic gas detector.
Based on any of the above-described embodiment, further, described toxic gas data reception module also includes that connection arranges son
Module and at least one unmanned plane connect interface, and described connection arranges submodule and connects the interface ginseng of interface for arranging unmanned plane
Number, with linking objective unmanned plane, and receives the toxic gas data that the upper toxic gas detector of UAV targets is gathered, described
Interface parameters includes serial ports number, baud rate, check bit, stopping position and data bit.
Based on any of the above-described embodiment, further, described toxic gas analytic unit also includes showing processing module, institute
State the toxic gas data lines in different colors that multiple toxic gas detectors are gathered by display processing module, at broken line graph
In show in real time, in broken line graph also show represent warning value warning line.
Based on any of the above-described embodiment, further, described toxic gas analytic unit also includes GIS map module and determines
Module is analyzed in position, and described GIS map module provides cartographic information, and described positioning analysis module obtains the real-time positioning letter of unmanned plane
Breath, and on cartographic information, indicate the toxic gas data of unmanned plane present position, and on cartographic information, show unmanned plane
Path.
Based on any of the above-described embodiment, further, described system also includes image acquisition units, described image acquisition list
Unit is arranged on unmanned plane, the view data of Real-time Collection unmanned plane present position, and view data and synchronization are had poison
Volume data sends to toxic gas analytic unit.
Based on any of the above-described embodiment, further, described toxic gas detector includes microcontroller, radio-frequency receiving-transmitting electricity
Road, radio frequency amplifying circuit, DC-DC switching power circuit, usb circuit and toxic gas Acquisition Circuit.
Described DC-DC switching power circuit includes the first outfan and the second outfan；The electricity of described RF transmit-receive circuit
Source input is connected by the first outfan of the 3rd magnetic bead FB3 and DC-DC switching power circuit, and its transmitting terminal is sent out by radio frequency
Penetrating port TX_RF to be connected with the input of radio frequency amplifying circuit, it controls end and is connected with the radio frequency control end of microcontroller, and it connects
Ground end by the first magnetic bead FB1 with dock；The power input of described radio frequency amplifying circuit passes through the 5th magnetic bead FB5 and DC-
Second outfan of DC switching power circuit connects, and its outfan is connected with radio frequency interface P1；The power supply of described usb circuit
End is connected with the second outfan of DC-DC switching power circuit, and its first data transmit-receive end connects with the usb data end of microcontroller
Connecing, its second data transmit-receive end is connected with USB interface P2；Described toxic gas Acquisition Circuit includes that multiple toxic gas senses
Device, each toxic gas sensor is by the toxic gas data terminal of gas data transmission channel and microcontroller one a pair
Should connect, the power end of each toxic gas sensor is connected with the second outfan of DC-DC switching power circuit.
Based on any of the above-described embodiment, further, the housing of described toxic gas detector is provided with multiple plug
Formula/buckle-type/screwing type toxic gas sensor, described toxic gas sensor is provided with the first connector and the first electrical interface,
Described housing is provided with many groups the second connector and the second electrical interface, after the first connector and the second connector mate and connect,
First electrical interface also docks with the second electrical interface coupling.
In sum, owing to have employed technique scheme, the invention has the beneficial effects as follows: proposed by the invention is poisonous
Gas detection system, it is adaptable to the application places such as the air exhaust emission investigation of sternness, chemical accident disaster investigation, is a kind of suitable
Close the poisonous gas detection system of unmanned plane carry, can quickly grasp noxious gas component when disaster occurs, in order to fire-fighting portion
Team takes correct emergency plan, reduces the meaningless sacrifice of personnel.Toxic gas detector is arranged on unmanned plane, can gather simultaneously
Multiple types gas parallel processing, it is possible to use self-contained wireless data link uploads to toxic gas analytic unit, when
The most also can be connected by USB interface and PC and upload data, and on toxic gas analytic unit, show the kind of poisonous gas
With toxic gas data such as concentration；It is possible with the image acquisition units being arranged on unmanned plane, by toxic gas data and figure
As data are compressed packing, then it is sent to toxic gas analytic unit.
Unmanned plane of the present invention can use rotor wing unmanned aerial vehicle or fixed-wing unmanned plane etc., is that disaster relief personnel cannot arrive calamity
Evil scene needs the ideal equipment of detection, applies on unmanned plane by toxic gas harvester, utilizes the flexible of unmanned plane
Property, replace manually carrying out toxic gas detection, there is safety height, mobility strong, efficiency high.
Accompanying drawing explanation
Examples of the present invention will be described by way of reference to the accompanying drawings, wherein:
Fig. 1 is the systematic schematic diagram of the present invention.
Fig. 2 is the theory diagram of toxic gas detector in the present invention.
Fig. 3 is the circuit diagram of DC-DC switching power circuit in the present invention.
Fig. 4 is the circuit diagram of RF transmit-receive circuit in the present invention.
Fig. 5 is the circuit diagram of radio frequency amplifying circuit in the present invention.
Fig. 6 is the circuit diagram of usb circuit in the present invention.
Detailed description of the invention
All features disclosed in this specification, or disclosed all methods or during step, except mutually exclusive
Feature and/or step beyond, all can combine by any way.
Any feature disclosed in this specification (including any accessory claim, summary), unless specifically stated otherwise,
By other equivalences or there is the alternative features of similar purpose replaced.I.e., unless specifically stated otherwise, each feature is a series of
An example in equivalence or similar characteristics.
As it is shown in figure 1, Fig. 1 describes a kind of remote poisonous gas detection system based on unmanned plane, described system bag
Include unmanned plane, toxic gas detector and toxic gas analytic unit；Wherein, described toxic gas detector is arranged on unmanned plane
On, toxic gas detector is for the toxic gas data of Real-time Collection unmanned plane present position.
Described toxic gas analytic unit at least includes with lower module:
1. toxic gas data reception module, is used for connecting toxic gas detector, and receives what toxic gas detector gathered
Toxic gas data；
2. toxic gas species judge module, for judging the kind of toxic gas according to toxic gas data；
3. concentration of toxic gases computing module, for calculating the concentration value of the toxic gas of present kind；
4. warning value arranges module, for arranging the warning value of every kind of toxic gas；
5. alarm module, the warning value of concentration value with this kind of toxic gas for comparing the toxic gas of present kind, if should
Concentration value exceedes this warning value, then export warning message.
Owing to site environment is complicated, and native system is used on unmanned plane, when unmanned plane flight at the scene, everywhere
Concentration of toxic gases may be different, and toxic gas detector is usually and carrys out detected gas concentration by the absorption of just face or reaction, and
Due to the defect of the material character of toxic gas detector, the general all ratios of toxic gas desorption ability on the detector are less
Preferable, it is impossible in the scene that concentration of toxic gases dynamically changes, to make fast reaction so that toxic gas detector is gathered
Toxic gas data inaccurate, particularly when native system is together analyzed herein in connection with location information, each anchor point poisonous
Gas data exists certain delayed.Therefore, the present invention, based on above-described embodiment, arranges on-off control the most further
Submodule.
Described toxic gas data reception module includes on-off control submodule, for controlling the work of toxic gas detector
Making state, including starting, toxic gas detector carries out detection of gas, stopping toxic gas detector carrying out detection of gas and control
Make alternately detection between multiple toxic gas detector.In practical operation, can be periodically turned on/stop certain/some has
Poisonous gas detector, allows multiple toxic gas detector alternately detect, and the toxic gas detector stopping detection starting heating
State, carries out desorption operation to toxic gas detector, after a certain time or according to switching control instruction, toxic gas is visited
Survey device exchange duty, thus improve the response sensitivity of toxic gas detector, improve location information and toxic gas number
According to matching accuracy.
Based on any of the above-described embodiment, further, described toxic gas data reception module also includes that connection arranges son
Module and at least one unmanned plane connect interface, and described connection arranges submodule and connects the interface ginseng of interface for arranging unmanned plane
Number, with linking objective unmanned plane, and receives the toxic gas data that the upper toxic gas detector of UAV targets is gathered, described
Interface parameters includes serial ports number, baud rate, check bit, stopping position and data bit.
User can arrange submodule by connection and may select unmanned plane connection interface i.e. serial ports number and baud rate, controls poisonous
Gas analysis unit carries out data communication with corresponding unmanned plane.After unmanned plane and toxic gas analytic unit are successfully connected,
Toxic gas data reception module can receive toxic gas data, and sends corresponding control instruction.
Based on any of the above-described embodiment, further, described toxic gas analytic unit also includes showing processing module, institute
State the toxic gas data lines in different colors that multiple toxic gas detectors are gathered by display processing module, at broken line graph
In show in real time, in broken line graph also show represent warning value warning line.
Display screen is divided into multiple display window by described display processing module, at least include the first display window, second
Multiple combination in display window and the 3rd display window.Display processing module also provides for window and hides key, to hide or to launch
Each window.
Described first display window is used for showing poisonous gas data transmission configuration interface, shows poisonous gas data receiver
The setting options of module and control key, the numbering of toxic gas detector, the kind of toxic gas, the warning value of toxic gas,
Warning value arranges key and the display of toxic gas data selects key.
Described second display window, for showing real time data table and the alert data table of poisonous gas data, also shows
Start to show key, suspend display key, storage real time data key and storage alert data key.
Described 3rd display window is for showing the broken line graph of poisonous gas data and warning value.
When real time data table derived by needs, click on storage real time data key, when alert data table derived by needs, click on
Storage alert data key.Clicking on after suspending display key, real time data table and broken line graph will stop refresh data, certainly, if gone out
Existing alert data, then continue to display alert in alert data table.
Based on any of the above-described embodiment, further, described toxic gas analytic unit also includes GIS map module and determines
Module is analyzed in position, and described GIS map module provides cartographic information, and described positioning analysis module obtains the real-time positioning letter of unmanned plane
Breath, and on cartographic information, indicate the toxic gas data of unmanned plane present position, and on cartographic information, show unmanned plane
Path.
User can the most intuitively browse particular location and the path of unmanned plane, and reads the most intuitively
History concentration value on the real-time concentration of unmanned plane present position toxic gas and path, it is simple to user monitoring is on-the-spot, refers to for user
Wave on-the-spot battle plan and data support is provided.
Based on any of the above-described embodiment, further, described system also includes image acquisition units, described image acquisition list
Unit is arranged on unmanned plane, the view data of Real-time Collection unmanned plane present position, and view data and synchronization are had poison
Volume data sends to toxic gas analytic unit.
Image acquisition units provides the user the real-time pictures at scene, it is simple to user combines practical situation and makes and more preferably making
War scheme, is monitored field condition.
Based on any of the above-described embodiment, further, the housing of described toxic gas detector is provided with multiple plug
Formula/buckle-type/screwing type toxic gas sensor, toxic gas sensor is arranged on housing by detachable interface, described
Toxic gas sensor is provided with the first connector and the first electrical interface, and described housing is provided with many groups the second connector and the second electricity
Interface, after the first connector and the second connector mate and connect, the first electrical interface also docks with the second electrical interface coupling.
Use plug-in/buckle-type/screwing type toxic gas sensor, quick-replaceable toxic gas sensor can be realized,
Being easy to quickly tackle field conditions, practical, user only needs a toxic gas detector can realize detecting multiple poisonous
Gas data, and as the case may be corresponding toxic gas sensor can be installed on toxic gas detector, meet quickly
War fighting requirement, and possess adaptability widely, it is adaptable to various site environments.Only need to change different toxic gas sensors i.e.
Can realize different toxic gas is detected, it is possible to use multiple toxic gas detector to same toxic gas simultaneously
Detect.
Poisonous gas detection system proposed by the invention, it is adaptable to severe air exhaust emission is investigated, chemical accident
The application places such as disaster investigation, are the poisonous gas detection systems of a kind of applicable unmanned plane carry, can be quick when disaster occurs
Grasp noxious gas component, in order to fire brigade takes correct emergency plan, reduce the meaningless sacrifice of personnel.Poisonous gas detection
Device is arranged on unmanned plane, can gather multiple types gas parallel processing simultaneously, it is possible to use self-contained wireless data chain
Road uploads to toxic gas analytic unit, the most also can be connected by USB interface and PC and upload data, and divide at toxic gas
The toxic gas data such as kind and concentration of poisonous gas are shown on analysis unit；The image being possible with being arranged on unmanned plane is adopted
Collection unit, is compressed packing by toxic gas data and view data, then is sent to toxic gas analytic unit.
Unmanned plane of the present invention can use rotor wing unmanned aerial vehicle or fixed-wing unmanned plane etc., is that disaster relief personnel cannot arrive calamity
Evil scene needs the ideal equipment of detection.
Based on any of the above-described embodiment, further, as in figure 2 it is shown, described toxic gas detector include microcontroller,
RF transmit-receive circuit, radio frequency amplifying circuit, DC-DC switching power circuit, usb circuit and toxic gas Acquisition Circuit.
Described DC-DC switching power circuit includes the first outfan and the second outfan, such as the first outfan output 3.3V
Power supply, the second outfan output 5V power supply；The power input of described RF transmit-receive circuit passes through the 3rd magnetic bead FB3 and DC-DC
First outfan of switching power circuit connects, and its transmitting terminal is defeated by radio-frequency transmissions port TX_RF and radio frequency amplifying circuit
Entering end to connect, its radio frequency controlling end and microcontroller controls end and is connected, its earth terminal pass through the first magnetic bead FB1 with dock；
The power input of described radio frequency amplifying circuit is connected by second outfan of the 5th magnetic bead FB5 with DC-DC switching power circuit
Connecing, its outfan is connected with radio frequency interface P1, its earth terminal by the second magnetic bead FB2 with dock；Described usb circuit
Power end is connected with the second outfan of DC-DC switching power circuit, its first data transmit-receive end and the usb data of microcontroller
End connects, and its second data transmit-receive end is connected with USB interface P2；Described toxic gas Acquisition Circuit includes that multiple toxic gas passes
Sensor, each toxic gas sensor is by the toxic gas data terminal of a gas data transmission channel and microcontroller one by one
Corresponding connection, the power end of each toxic gas sensor is connected with the second outfan of DC-DC switching power circuit.
As it is shown on figure 3, heretofore described DC-DC switching power circuit includes power input J1, protective tube F1, filtering
Electric capacity C1, filter capacitor C2, power management chip U1, bootstrap capacitor C7, inductance L1, Schottky diode D1, Schottky two pole
Pipe D2, electrochemical capacitor C8, electric capacity C9, the 4th magnetic bead FB4, resistance R1, resistance R2 and resistance R4.Wherein, filter capacitor C1, filtering
Electric capacity C2, power management chip U1, bootstrap capacitor C7, inductance L1, Schottky diode D2, electrochemical capacitor C8 and electric capacity C9 composition
Power management module.In the present invention, the power input J1 of DC-DC switching power circuit can connect the power output end of unmanned plane
Mouthful, it is powered by the power supply of unmanned plane.
The positive pole of power input J1 is connected with the power input VIN of power management module by protective tube F1, power supply
The power output end VOUT of management module is connected by the positive pole of the 4th magnetic bead FB4 and Schottky diode D1, Schottky two pole
The negative pole of pipe D1 is connected with the second outfan of DC-DC switching power circuit, exports 5V power supply.
Described DC-DC switching power circuit also includes that reduction voltage circuit, described reduction voltage circuit include manostat U3, filter capacitor
C14, filter capacitor C15, resistance R7 and light emitting diode D3, the power input of described reduction voltage circuit and DC-DC Switching Power Supply
Second outfan of circuit connects, the power input of described reduction voltage circuit by filter capacitor C14 with dock, and and voltage stabilizing
The power input of device U3 connects, and the power output end of manostat U3 is connected with the first outfan of DC-DC switching power circuit,
Also by filter capacitor C15 with dock, be connected with light emitting diode D7 also by resistance R7, the bright table of this light emitting diode D7 lamp
Show DC-DC switching power circuit to start normally to work, this toxic gas detector electric power starting.
As shown in Figure 4, described RF transmit-receive circuit includes filter capacitor C3, C4, C5 and C6 of parallel connection, filter capacitor C3's
One end is connected by the first outfan of the 3rd magnetic bead FB3 and DC-DC switching power circuit, accesses 3.3V power supply, its other end
By the first magnetic bead FB1 with dock, the first outfan of DC-DC switching power circuit also by current-limiting resistance R5 and isolation electricity
Sense L2 and rf chip U2 RF output end TX be connected, the first outfan of DC-DC switching power circuit also with radio frequency
The power input VDD of transceiving chip U2 connects, and the RF output end TX of rf chip U2 also passes sequentially through coupling electric capacity
C10, isolation inductance L5, isolation inductance L4, isolation inductance L3 are connected with radio-frequency transmissions port TX_RF, isolation inductance L5, isolation electricity
Sense L4, even with passing through an electric capacity and the first radio frequency respectively connection in one end of isolation inductance L3, one end of coupling electric capacity C10 is the most logical
Cross isolation inductance L6 and resistance R8 and the first radio frequency ground docking, the control end of rf chip U2, reset terminal, programming end, time
Zhong Duanjun is connected with microcontroller, described first radio frequency ground by the first magnetic bead FB1 with dock.
As it is shown in figure 5, described radio frequency amplifying circuit includes radio-frequency power amplifier tube U5, divider resistance R10, divider resistance
R11, current-limiting resistance R13, isolation inductance L8, coupling electric capacity C23, isolation inductance L7, isolation inductance L9, coupling electric capacity C24 and coupling
Close electric capacity C25.
Wherein, the input of radio-frequency power amplifier tube U5 passes sequentially through isolation inductance L8 and current-limiting resistance R13 and dividing potential drop electricity
The junction point of resistance R10 and divider resistance R11 connects, and the other end of divider resistance R10 is switched by the 5th magnetic bead FB5 Yu DC-DC
Second outfan of power circuit connects, and accesses 5V power supply, and the other end of divider resistance R11 passes through adjustable resistance R12 and second
Radio frequency ground connects, further, also by filter capacitor C22 and the second radio frequency ground between current-limiting resistance R13 and isolation inductance L8
Connect.
The input of radio-frequency power amplifier tube U5 is connected with radio-frequency transmissions port TX_RF also by coupling electric capacity C23, enters one
Step, the input of radio-frequency power amplifier tube U5 is also associated with the first filter circuit with coupling between electric capacity C23, as penetrated with second
Frequently the filter capacitor C27 that connects and with the second radio frequency ground the filter resistance R14 and filter capacitor C30 of series connection that are connected.
The outfan of radio-frequency power amplifier tube U5 is also by second output of isolation inductance L7 with DC-DC switching power circuit
End connects, and accesses 5V power supply, is also associated with the second filter circuit, such as multiple parallel connections between isolation inductance L7 and this second outfan
With the filter capacitor that is connected of the second radio frequency ground.
The outfan of radio-frequency power amplifier tube U5 is also by being sequentially connected in series isolation inductance L9, coupling electric capacity C24 and coupling electricity
Hold C25 to be connected with radio frequency interface P1, between isolation inductance L9 and coupling electric capacity C24, be also associated with the 3rd filter circuit, such as one
Or multiple parallel connection with the filter capacitor that is connected of the second radio frequency ground.Radio frequency interface P1 can be connected with Anneta module, by antenna mould
Block communicates with toxic gas analytic unit, also can be connected with unmanned plane, by the antenna of unmanned plane and toxic gas analytic unit
Communication, also can be connected with image acquisition units, be communicated with toxic gas analytic unit by the antenna of image acquisition units.
Described second radio frequency ground by the second magnetic bead FB2 with dock.Described radio-frequency power amplifier tube U5 can use three poles
Pipe, the base stage of this audion is connected with the second radio frequency ground, and its colelctor electrode is connected with the input of radio-frequency power amplifier tube U5, its
Emitter-base bandgap grading is connected with the outfan of radio-frequency power amplifier tube U5.
As shown in Figure 6, described usb circuit includes USB interface P2 and USB control chip U6, described USB control chip
The data positive signal end USBDP signal end D+ positive with the data of USB interface P2 of U6 is connected, the data minus letter of USB control chip U6
Number end USBDM be connected with the data minus signal end D-of USB interface P2.The power input of described USB interface P2 is by series connection
Second outfan of Xiao Jite diode D5 and safeguard F2 and DC-DC switching power circuit is connected, and accesses 5V power supply.Described
The data receiver RXD of USB control chip U6 is connected with the data sending terminal UART TX1 of microcontroller, USB control chip U6
Data sending terminal TXD be connected with the data receiver UART RX1 of microcontroller, the power input of USB control chip U6 with
Second outfan of DC-DC switching power circuit connects, and accesses 5V power supply.Further, USB control chip U6 also can luminescence two
Pole pipe D6 connects, and when light emitting diode D6 is bright, represents and there is USB data transmission.
The toxic gas data input pin of described microcontroller is respectively by the second electrical interface on housing and toxic gas
Sensor electrically connects, and described microcontroller can use STM32F101C8T6 control chip U4.Further, described microcontroller
It is connected with the data terminal of unmanned plane also by first serial J3, also by the data of second serial J4 Yu image acquisition units
End connects.
The invention is not limited in aforesaid detailed description of the invention.The present invention expands to any disclose in this manual
New feature or any new combination, and the arbitrary new method that discloses or the step of process or any new combination.
Claims (8)
1. a remote poisonous gas detection system based on unmanned plane, it is characterised in that: described system includes unmanned plane, has
Poisonous gas detector and toxic gas analytic unit；Wherein, described toxic gas detector is arranged on unmanned plane, toxic gas
Detector is for the toxic gas data of Real-time Collection unmanned plane present position；
Described toxic gas analytic unit at least includes with lower module:
Toxic gas data reception module, is used for connecting toxic gas detector, and receives having of toxic gas detector collection
Poisonous gas data；
Toxic gas species judge module, for judging the kind of toxic gas according to toxic gas data；
Concentration of toxic gases computing module, for calculating the concentration value of the toxic gas of present kind；
Warning value arranges module, for arranging the warning value of every kind of toxic gas；
Alarm module, the warning value of concentration value with this kind of toxic gas for comparing the toxic gas of present kind, if this is dense
Angle value exceedes this warning value, then export warning message.
2. based on a kind of based on unmanned plane the remote poisonous gas detection system described in claim 1, it is characterised in that: institute
State toxic gas data reception module and include on-off control submodule, for controlling the duty of toxic gas detector, bag
Include startup toxic gas detector carry out detection of gas, stop toxic gas detector carrying out detection of gas and control multiple poisonous
Alternately detection between gas detector.
3. based on a kind of based on unmanned plane the remote poisonous gas detection system described in claim 1, it is characterised in that: institute
Stating toxic gas data reception module and also include that connection arranges submodule and at least one unmanned plane connects interface, described connection sets
Put submodule and connect the interface parameters of interface for arranging unmanned plane, with linking objective unmanned plane, and receive on UAV targets
The toxic gas data that toxic gas detector is gathered, described interface parameters includes serial ports number, baud rate, check bit, stopping
Position and data bit.
4. based on a kind of based on unmanned plane the remote poisonous gas detection system described in claim 1, it is characterised in that: institute
Stating toxic gas analytic unit also to include showing processing module, multiple toxic gas detectors are adopted by described display processing module
The toxic gas data lines in different colors of collection, show in broken line graph in real time, also show expression warning in broken line graph
The warning line of value.
5. based on a kind of based on unmanned plane the remote poisonous gas detection system described in claim 1, it is characterised in that: institute
Stating toxic gas analytic unit and also include GIS map module and positioning analysis module, described GIS map module provides map letter
Breath, described positioning analysis module obtains the real-time positioning information of unmanned plane, and indicates unmanned plane present position on cartographic information
Toxic gas data, and on cartographic information, show unmanned plane path.
6. based on a kind of based on unmanned plane the remote poisonous gas detection system described in claim 1, it is characterised in that: institute
System of stating also includes that image acquisition units, described image acquisition units are arranged on unmanned plane, position residing for Real-time Collection unmanned plane
The view data put, and the toxic gas data of view data and synchronization are sent to toxic gas analytic unit.
7. based on a kind of based on unmanned plane the remote poisonous gas detection system described in claim 1, it is characterised in that: institute
State toxic gas detector and include microcontroller, RF transmit-receive circuit, radio frequency amplifying circuit, DC-DC switching power circuit, USB
Interface circuit and toxic gas Acquisition Circuit；
Described DC-DC switching power circuit includes the first outfan and the second outfan；
The power input of described RF transmit-receive circuit is by first output of the 3rd magnetic bead FB3 with DC-DC switching power circuit
End connects, and its transmitting terminal is connected with the input of radio frequency amplifying circuit by radio-frequency transmissions port TX_RF, and it controls end and micro-control
The radio frequency of device processed controls end and connects, its earth terminal by the first magnetic bead FB1 with dock；
The power input of described radio frequency amplifying circuit is by second output of the 5th magnetic bead FB5 with DC-DC switching power circuit
End connects, and its outfan is connected with radio frequency interface P1；
The power end of described usb circuit is connected with the second outfan of DC-DC switching power circuit, its first data transmit-receive
End is connected with the usb data end of microcontroller, and its second data transmit-receive end is connected with USB interface P2；
Described toxic gas Acquisition Circuit includes multiple toxic gas sensor, and each toxic gas sensor passes through a gas
Data transmission channel connects one to one with the toxic gas data terminal of microcontroller, the power end of each toxic gas sensor
It is connected with the second outfan of DC-DC switching power circuit.
8., based on a kind of based on unmanned plane the remote poisonous gas detection system described in claim 1 or 7, its feature exists
In: it is provided with multiple plug-in/buckle-type/screwing type toxic gas sensor, institute on the housing of described toxic gas detector
Stating toxic gas sensor and be provided with the first connector and the first electrical interface, described housing is provided with many group the second connectors and second
Electrical interface, after the first connector and the second connector mate and connect, the first electrical interface also docks with the second electrical interface coupling.
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| CN201610916552.6A CN106324203A (en) | 2016-10-21 | 2016-10-21 | Long-distance toxic gas detection system based on unmanned aerial vehicle |
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| CN201610916552.6A CN106324203A (en) | 2016-10-21 | 2016-10-21 | Long-distance toxic gas detection system based on unmanned aerial vehicle |
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