CN113391034A - Ship tail gas sniffing device and method suitable for micro unmanned aerial vehicle - Google Patents
Ship tail gas sniffing device and method suitable for micro unmanned aerial vehicle Download PDFInfo
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- NINIDFKCEFEMDL-UHFFFAOYSA-N Sulfur Chemical compound [S] NINIDFKCEFEMDL-UHFFFAOYSA-N 0.000 description 7
- 229910052717 sulfur Inorganic materials 0.000 description 7
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- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 description 1
- 238000010521 absorption reaction Methods 0.000 description 1
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- 230000018109 developmental process Effects 0.000 description 1
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Classifications
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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
- G01N33/0027—General constructional details of gas analysers, e.g. portable test equipment concerning the detector
- G01N33/0036—Specially adapted to detect a particular component
- G01N33/004—Specially adapted to detect a particular component for CO, CO2
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B64—AIRCRAFT; AVIATION; COSMONAUTICS
- B64C—AEROPLANES; HELICOPTERS
- B64C39/00—Aircraft not otherwise provided for
- B64C39/02—Aircraft not otherwise provided for characterised by special use
-
- 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
- G01N33/0027—General constructional details of gas analysers, e.g. portable test equipment concerning the detector
- G01N33/0036—Specially adapted to detect a particular component
- G01N33/0037—Specially adapted to detect a particular component for NOx
-
- 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
- G01N33/0027—General constructional details of gas analysers, e.g. portable test equipment concerning the detector
- G01N33/0036—Specially adapted to detect a particular component
- G01N33/0042—Specially adapted to detect a particular component for SO2, SO3
Abstract
The invention discloses a ship tail gas sniffing device and a ship tail gas sniffing method suitable for a micro unmanned aerial vehicle, wherein the device comprises a main body, wherein a passage, an air inlet, an air outlet, an air exhaust module, a control module, a display module and a power supply module are arranged in the main body; a detection module is arranged in the passage; wherein the air extraction module is connected with the air inlet; the air inlet and the air outlet are connected with the passage; the detection module, the display module and the air extraction module are all connected with the control module; the control module is used for controlling the working process of the main body, the air exhaust module is used for exhausting gas to be detected into the passage, the detection module is used for detecting the gas in the passage, and the display module is used for displaying the detection result. According to the invention, the control module controls the air extraction module to extract the tail gas into the passage, and the tail gas of the ship is detected by the detection module in the passage, so that no special unmanned aerial vehicle is required to be relied on in the process, the independence of the device is ensured, and the problems of high carrying cost and large sniffing device of a small unmanned aerial vehicle are solved.
Description
Technical Field
The invention relates to the technical field of ship tail gas sniffing, in particular to a ship tail gas sniffing device and method suitable for a micro unmanned aerial vehicle.
Background
Under the background of the blue sky defense war and the policy of the ship atmospheric pollutant emission control area in China, the maritime administration department increases the duty of monitoring the quality of fuel oil used by ships. At present, the mainstream efficient and accurate supervision means at home and abroad is to detect CO in ship tail gas2And SO2The concentration quickly and reversely deduces the sulfur content of the fuel oil, and improves the pertinence and efficiency of the boarding sampling inspection work, which is called a sniffing method for short. One of the application forms of the sniffing method is that the air pollution detection device which is traditionally used on land is used as a ship tail gas sniffing device, the unmanned aerial vehicle flying platform is used for being close to high-concentration tail gas plume of a ship chimney opening, and detection data are remotely sent to the ground for analysis and calculation of fuel oil sulfur content. The power supply and the data transmission of device are sniffed to boats and ships tail gas mainly have two kinds of modes, one is from taking battery and communication module, and another kind is battery and communication module on the unmanned aerial vehicle that directly utilizes to have secondary development ability. The former mode results in that boats and ships tail gas sniffes the device great, heavier, needs to move many tens of thousands yuan of middle-size and small-size unmanned aerial vehicle to carry for the maritime law enforcement personnel is shy in the use, worrys about falling into the sea loss too big. The latter mode results in that boats and ships tail gas sniffes the device and does not have the independence, need to bind the sale with specific unmanned aerial vehicle, has increased unnecessary cost to the user who has had unmanned aerial vehicle.
Disclosure of Invention
The invention aims to provide a ship tail gas sniffing device and method suitable for a micro unmanned aerial vehicle, which are used for solving the problems in the prior art, can realize the independence of the device and do not need to be bound with a specific unmanned aerial vehicle.
In order to achieve the purpose, the invention provides the following scheme: the invention provides a ship tail gas sniffing device suitable for a micro unmanned aerial vehicle, which comprises:
the air-conditioning device comprises a main body, wherein a passage, an air inlet, an air outlet, an air pumping module, a control module and a display module are arranged in the main body; a detection module is arranged in the passage;
the air inlet and the air outlet are communicated with the passage; the air pumping module is communicated with the air inlet; the detection module, the display module and the air extraction module are all connected with the control module;
the control module is used for controlling the working process of the main body and reading, processing and calculating the concentration data of the gas to be detected, which is acquired by the detection module;
the gas pumping module is used for pumping gas to be detected into the passage;
the passage is used for bearing gas to be detected;
the detection module is used for detecting the gas to be detected in the passage;
the display module is used for displaying the result of the control module on the calculation of the concentration data of the gas to be detected.
Preferably, the detection module comprises: the device comprises a first detection module, a second detection module and a third detection module;
the first detection module, the second detection module and the third detection module are sequentially connected in series;
the first detection module is used for detecting CO in the gas to be detected2Concentration;
the second detection module is used for detecting SO in the gas to be detected2Concentration;
the third detection module is used for detecting NO in the gas to be detected2And (4) concentration.
Preferably, the body further comprises: the power supply module is connected with the control module, the detection module and the air extraction module; the power supply module is used for supplying power to the control module, the detection module and the air exhaust module.
Preferably, the air pumping module is an air pump, an inlet of the air pump is connected with a filter tip, and an outlet of the air pump is communicated with the air inlet.
Preferably, the display module is an LED lamp.
Preferably, the control module comprises: the reading submodule is used for reading the gas concentration data to be detected by the detection module, and the main controller processes and calculates the gas concentration data to be detected.
Preferably, the control module further comprises: a storage submodule; the storage submodule is used for storing the to-be-detected gas concentration data read by the reading submodule.
A ship tail gas sniffing method suitable for a micro unmanned aerial vehicle comprises the following steps:
the control module controls the air suction module to suck the gas to be detected into the passage through the air inlet;
when the gas to be detected pumped into the passage passes through the detection module, the control module controls the detection module to collect the concentration data of the gas to be detected;
reading the concentration data of the gas to be detected acquired by the detection module through the control module, and processing and calculating the concentration data of the gas to be detected to obtain a calculation result;
displaying the calculation result of the control module through the display module, and finishing the tail gas detection;
and after the tail gas detection is finished, discharging the gas to be detected through the gas outlet.
The technical scheme of this application's beneficial effect: the invention specially and accurately designs a sniffing device for detecting the ship tail gas by the unmanned aerial vehicle, wherein the device is provided with a control module, an air extraction module and a passage, and the passage is provided with a detection module; the control module controls the air extraction module to extract tail gas into the passage, and the tail gas of the ship is detected by the detection module in the passage, so that the process does not need to depend on a specific unmanned aerial vehicle, and the independence of the device is ensured; and the special detection NO is added in the detection module2Sensor of concentration, raising SO2The detection precision of the concentration ensures the reliability of the detection result of the ship tail gas. The power supply module can also use a common battery for power supply, thereby reducing the use cost and solving the problem of smallnessThe unmanned aerial vehicle carries on the difficult problem that great boats and ships tail gas sniffes the device with high costs, can not fall.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings needed to be used in the embodiments will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art to obtain other drawings without inventive exercise.
Fig. 1 is a structural diagram of a ship tail gas sniffing device suitable for a micro unmanned aerial vehicle according to the invention;
the device comprises a filter tip 1, an air pump 2, a first detection module 3, a second detection module 4, a third detection module 5, a power supply module 6, a control module 7 and a display module 8.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
In order to make the aforementioned objects, features and advantages of the present invention comprehensible, embodiments accompanied with figures are described in further detail below.
Referring to fig. 1, the invention provides a ship tail gas sniffing device suitable for a micro unmanned aerial vehicle, comprising: the air conditioner comprises a main body, wherein a passage, an air inlet, an air outlet, an air exhaust module, a control module 7 and a display module 8 are arranged in the main body; a detection module is arranged in the passage.
Wherein the passage in the body is used for bearing the gas to be detected; in the embodiment, the passage adopts a silica gel hose with low adsorptivity, good temperature resistance, difficult aging and low precipitate; the air inlet and the air outlet which are communicated with the passage adopt polytetrafluoroethylene air pipes which are high temperature resistant, low temperature resistant, corrosion resistant and good in adhesion resistance.
The air pumping module is used for pumping the gas to be detected into the passage, in the embodiment, the air pumping module is an air pump 2, an inlet of the air pump 2 is connected with the filter tip 1, and an outlet of the air pump 2 is communicated with the air inlet; the filter tip 1 is used for carrying out dehumidification edulcoration to the gas that awaits measuring, ensures that the gas that enters into detection module is dry, no particulate matter impurity.
The control module 7 is used for controlling the working process of the main body; its control module 7 includes: the device comprises a main controller, a reading submodule and a storage submodule; the reading sub-module is used for reading the concentration data of the gas to be detected by the detection module, and the main controller processes and calculates the concentration data of the gas to be detected; the storage submodule is used for storing the to-be-detected gas concentration data read by the reading submodule. In this embodiment, the main controller selects an STM32F103 series microcontroller, and the parameters of the main controller are shown in table 1:
TABLE 1
| Categories | Embedded microcontroller |
| Bus width | 32 bit |
| Speed of rotation | 72MHz |
| Input/output number | 37 |
| Capacity of program memory | 64KB(64Kx8) |
| Type of program memory | FLASH |
| RAM capacity | 20Kx8 |
| Voltage-power supply (Vcc/Vdd) | 2V～3.6V |
| Analog-to-digital converter | 2V～3.6V |
| Oscillator type | Inner part |
| Operating temperature | -40℃～85℃ |
| Package/casing | 48-LQFP |
The STM32F103 main controller is connected with the reading submodule, the air extraction module, the detection module and the display module 8 through a UART serial port; the reading submodule is connected with the storage submodule and the detection module.
The detection module is used for detecting the gas to be detected in the passage; the detection module includes: the device comprises a first detection module 3, a second detection module 4 and a third detection module 5; the first detection module 3, the second detection module 4 and the third detection module 5 are sequentially connected in series; the first detection module 3 is used for detecting CO in the gas to be detected2Concentration; the second detection module 4 is used for detecting SO in the gas to be detected2Concentration; the third detection module 5 is used for detecting NO in the gas to be detected2Concentration;
in the present embodiment, the first detection module 3 adoptsWith CO2Gas sensor, CO2Specific parameters of the gas sensor are shown in table 2; the second detection module 4 adopts SO2Gas sensors, SO2Specific parameters of the gas sensor are shown in table 3; the third detection module 5 adopts NO2Gas sensor, NO2The gas sensors are shown in table 4; the volume and the weight of the three gas sensors adopted by the detection module are smaller, so that the volume and the weight of the detection module in the whole sniffing device are reduced;
TABLE 2
| Measuring method | NDIR infrared absorption detection principle |
| Operating voltage | DC5V |
| Operating current | Imax:130mA |
| Signal output | UARTPWMIIC |
| Size of | 57mm×35mm×16mm |
| Storage temperature | -40℃～70℃ |
| Operating temperature | 0℃～50℃ |
| Range of humidity | 0％～95％RH |
| Channel | Double channel |
| Detection range | 0～50000PPM |
| Measurement accuracy | Current reading of + -5% |
| Response time | Diffusion: 60S pump suction: 10S |
| Preheating time | 120S |
TABLE 3
TABLE 4
| Measuring method | Electrochemistry method |
| Measuring range | 0～10ppm |
| Maximum load | 20ppm |
| Sensitivity (20 ℃ C.) | 0.40±0.2μA/ppm |
| Resolution ratio | 15ppb |
| Response time (T90) | ≤45s |
| Temperature range | -20℃～50℃ |
| Range of |
1 standard atmospheric pressure +/-10% |
| Range of humidity | 15% -90% RH (without condensation) |
| Long term stability | <2% signal value/month |
| Storage temperature | 10℃～30 |
| Service life | |
| 2 years (in the air) | |
| |
6 months (Special packing box middle) |
| Maximum open circuit voltage | 1.3V |
| Maximum short-circuit current | <1.0A |
| Shell material | ABS |
| Weight (D) | 10 g |
| Directionality of electricity | Is free of |
It is known that when the sniffing method is used for detecting the ship tail gas, only SO in the tail gas needs to be detected2With CO2Content of gas, the invention therefore increasing NO in the detection module2Gas sensors, primarily for co-operation with SO2Gas sensor, lifting SO2And (4) concentration detection precision. SO (SO)2The gas sensor measures electrochemically, but electrochemically SO2The gas sensor has poor interference resistance, wherein NO2The interference is more serious, the invention passes through 18 SO pairs2The sensor is charged with 90ppm NO2Experiment with standard gas to verify NO2To SO2Influence of the concentration gave SO as shown in Table 52The sensor is charged with 90ppm NO2SO of standard gas2The concentration affects the results; from this, it was found that almost 1 part of NO was contained2Can be falsely determined to be-1 part SO2(ii) a Thus, true SO2Concentration of SO2Sensor detection result + NO2And detecting the result by the sensor.
TABLE 5
The display module 8 is connected with the control module 7; the display module 8 is used for displaying the result that the control module calculates the gas concentration data that the detection module gathered, and the display module chooses the polychrome LED lamp for use in this embodiment.
The main part still includes: and the power supply module 6 is used for supplying power to the control module 7, the detection module and the air extraction module. In this embodiment, the power supply module is powered by 2 No. 5 batteries, the capacity of a single battery is 2775mWh, the capacities of two batteries are 5550mWh, the effective capacity is 3885mWh and the voltage of the two batteries is 3V according to 70% of the effective capacity, the power of the sniffing device provided by the invention is 30W, and the power can support the detection module to continuously work for 58min through calculation. Generally, the flight time of the micro unmanned aerial vehicle does not exceed 25min, and the power supply module can support 2 ship tail gas detection tasks which are erected for times; the power supply module of the invention adopts a common No. 5 battery so as to reduce the volume of the whole sniffing device occupied by the power supply module 6 and reduce the cost.
The embodiment provides a ship tail gas sniffing method suitable for a micro unmanned aerial vehicle, which comprises the following steps:
s1: the gas to be detected is pumped into the passage through the gas inlet by controlling the gas pumping module through the control module 7:
a main controller in the control module 7 controls an air pump 2 in the air extraction module to be started, and the air pump 2 pumps the gas to be detected into an air inlet connected with the passage through the filter tip 1, so that the gas to be detected is pumped into the passage;
s2: when the gas to be detected pumped into the passage passes through the detection module, the control module 7 controls the detection module to collect the concentration data of the gas to be detected;
the control module 7 controls the detection module to detect the gas to be detected in the passage, and the detection module transmits the acquired concentration data of the gas to be detected to the reading submodule in the control module 7;
s3: the control module 7 reads the gas concentration data to be detected collected by the detection module, and processes and calculates the gas concentration data to be detected to obtain a calculation result;
a reading submodule in the control module 7 reads the to-be-detected gas concentration data acquired by the detection module, and transmits the read to-be-detected gas concentration data to a storage module, and the storage module stores the data; the main controller in the control module 7 integrates and packages the gas concentration data to be detected, and calculates according to formula 1, wherein formula 1 is as follows:
S％＝(SO2+NO2)/(CO2400 ppm). times.232, in ppm (1);
calculating to obtain a sulfur content result;
the main controller also sets three preset values: setting up CO2The concentration value of 700ppm is a first preset value; setting the sulfur content to 0.1% as a second preset value, and setting the sulfur content to 0.5% as a third preset value;
the main controller will process the CO2The concentration data is compared with a first preset value, meanwhile, the sulfur content result obtained by calculation is compared with a second preset value and a third preset value to obtain a comparison result, and the comparison result is transmitted to a display module 8;
s4: the calculation result of the control module 7 is displayed through the display module 8, and the tail gas detection is finished;
when the result transmitted by the control module 7 is greater than the first preset value, a white lamp in the LED lamps of the display module 8 is turned on, and when the result transmitted by the control module 7 is greater than the second preset value and is less than the third preset value, a yellow lamp in the LED lamps of the display module 8 is turned on; when the result transmitted by the control module 7 is greater than the third preset value, a red light in the LED lamps of the display module 8 is lightened; thus, the tail gas detection is completed. The maritime law enforcement officer checks the color of the LED lamp through the picture returned by the unmanned aerial vehicle with the camera to judge whether the sulfur content of the fuel oil of the ship exceeds the standard or not.
S5: and after the tail gas detection is finished, discharging the gas to be detected through the gas outlet.
In the description of the present invention, it is to be understood that the terms "longitudinal", "lateral", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", and the like, indicate orientations or positional relationships based on those shown in the drawings, are merely for convenience of description of the present invention, and do not indicate or imply that the referenced devices or elements must have a particular orientation, be constructed and operated in a particular orientation, and thus, are not to be construed as limiting the present invention.
The above-described embodiments are merely illustrative of the preferred embodiments of the present invention, and do not limit the scope of the present invention, and various modifications and improvements of the technical solutions of the present invention can be made by those skilled in the art without departing from the spirit of the present invention, and the technical solutions of the present invention are within the scope of the present invention defined by the claims.
Claims (8)
1. The utility model provides a marine exhaust sniffs device suitable for miniature unmanned aerial vehicle, a serial communication port, includes: the air conditioner comprises a main body, wherein a passage, an air inlet, an air outlet, an air exhaust module, a control module (7) and a display module (8) are arranged in the main body; a detection module is arranged in the passage;
the air inlet and the air outlet are communicated with the passage; the air pumping module is communicated with the air inlet; the detection module, the display module (8) and the air extraction module are all connected with the control module (7);
the control module (7) is used for controlling the working process of the main body, and reading, processing and calculating the concentration data of the gas to be detected acquired by the detection module;
the gas pumping module is used for pumping gas to be detected into the passage;
the passage is used for bearing gas to be detected;
the detection module is used for detecting the gas to be detected in the passage;
and the display module (8) is used for displaying the result of the control module on the calculation of the concentration data of the gas to be detected.
2. The ship tail gas sniffing device suitable for the micro unmanned aerial vehicle according to claim 1, characterized in that: the detection module comprises: the device comprises a first detection module (3), a second detection module (4) and a third detection module (5);
the first detection module (3), the second detection module (4) and the third detection module (5) are sequentially connected in series;
the first detection module (3) is used for detecting CO in the gas to be detected2Concentration;
the second detection module (4) is used for detecting SO in the gas to be detected2Concentration;
the third detection module (5) is used for detecting NO in the gas to be detected2And (4) concentration.
3. The ship tail gas sniffing device suitable for the micro unmanned aerial vehicle according to claim 1, characterized in that: the main body further includes: the power supply module (6), the power supply module (6) is connected with the control module (7), the detection module and the air extraction module; the power supply module (6) is used for supplying power to the control module (7), the detection module and the air extraction module.
4. The ship tail gas sniffing device suitable for the micro unmanned aerial vehicle according to claim 1, characterized in that: the air pumping module is an air pump (2), an inlet of the air pump (2) is connected with a filter tip (1), and an outlet of the air pump (2) is communicated with the air inlet.
5. The ship tail gas sniffing device suitable for the micro unmanned aerial vehicle according to claim 1, characterized in that: the display module (8) is an LED lamp.
6. The ship tail gas sniffing device suitable for the micro unmanned aerial vehicle according to claim 1, characterized in that: the control module (7) comprises: the reading submodule is used for reading the gas concentration data to be detected by the detection module, and the main controller processes and calculates the gas concentration data to be detected.
7. The marine exhaust sniffing device suitable for miniature unmanned aerial vehicle of claim 6, characterized in that: the control module (7) further comprises: a storage submodule; the storage submodule is used for storing the to-be-detected gas concentration data read by the reading submodule.
8. A ship exhaust gas sniffing method suitable for a micro unmanned aerial vehicle, which is realized by the device of any one of claims 1 to 7, and is characterized by comprising the following steps:
the control module (7) controls the air suction module to suck the gas to be detected into the passage through the air inlet;
when the gas to be detected pumped into the passage passes through the detection module, the control module (7) controls the detection module to collect the concentration data of the gas to be detected;
the control module (7) reads the concentration data of the gas to be detected collected by the detection module, and processes and calculates the concentration data of the gas to be detected to obtain a calculation result;
displaying the calculation result of the control module (7) through the display module (8), and finishing the tail gas detection;
and after the tail gas detection is finished, discharging the gas to be detected through the gas outlet.
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| CN202110656780.5A CN113391034A (en) | 2021-06-11 | 2021-06-11 | Ship tail gas sniffing device and method suitable for micro unmanned aerial vehicle |
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| CN202110656780.5A CN113391034A (en) | 2021-06-11 | 2021-06-11 | Ship tail gas sniffing device and method suitable for micro unmanned aerial vehicle |
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Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN204807135U (en) * | 2015-07-21 | 2015-11-25 | 河北国呈电子科技有限公司 | Micro air vehicle machine carries vehicle exhaust detecting system |
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