CN113049636A - Data processing terminal with multiple gas detection ability - Google Patents
Data processing terminal with multiple gas detection ability Download PDFInfo
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- CN113049636A CN113049636A CN202110205742.8A CN202110205742A CN113049636A CN 113049636 A CN113049636 A CN 113049636A CN 202110205742 A CN202110205742 A CN 202110205742A CN 113049636 A CN113049636 A CN 113049636A
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N27/00—Investigating or analysing materials by the use of electric, electrochemical, or magnetic means
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01D—MEASURING NOT SPECIALLY ADAPTED FOR A SPECIFIC VARIABLE; ARRANGEMENTS FOR MEASURING TWO OR MORE VARIABLES NOT COVERED IN A SINGLE OTHER SUBCLASS; TARIFF METERING APPARATUS; MEASURING OR TESTING NOT OTHERWISE PROVIDED FOR
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N1/00—Sampling; Preparing specimens for investigation
- G01N1/02—Devices for withdrawing samples
- G01N1/22—Devices for withdrawing samples in the gaseous state
- G01N1/2202—Devices for withdrawing samples in the gaseous state involving separation of sample components during sampling
- G01N1/2205—Devices for withdrawing samples in the gaseous state involving separation of sample components during sampling with filters
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N1/00—Sampling; Preparing specimens for investigation
- G01N1/02—Devices for withdrawing samples
- G01N1/22—Devices for withdrawing samples in the gaseous state
- G01N1/2202—Devices for withdrawing samples in the gaseous state involving separation of sample components during sampling
- G01N1/2214—Devices for withdrawing samples in the gaseous state involving separation of sample components during sampling by sorption
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Abstract
The invention discloses a data processing terminal with multiple gas detection capability, which comprises: pump and inhale module, sensing module and NB-IOT module, pump and inhale the module and will descend gaseous at the uniform velocity and inhale sensing module, be equipped with solid impurity filtering and dehydrating unit in pumping the module, carry out prefilter and dehumidification to inhaling the gas, sensing module includes the gas sensor of a plurality of integrated multiple functions, through the concentration of each composition in the multiple sensor analysis gas, NB-IOT module control pump pumps the power supply of module and sensing module to establish with sensing module and be connected, receiving and dispatching control instruction, the gaseous concentration value that conveying sensing module detected, and establish communication connection with the backstage system. The invention solves the problems of low detection precision and low integration degree of the existing gas concentration under the mine.
Description
Technical Field
The invention relates to the field of gas detection, in particular to a data processing terminal with multiple gas detection capabilities.
Background
The underground gas detection device has the advantages that various gases exist in the underground mine, the underground gas needs to be detected in real time, timely exhaust treatment is carried out according to the concentration of the underground gas, and physical damage to underground operators is avoided. In the traditional gas detection process, a special gas detection sensor is needed for each gas, the detection process is complicated, the cost is high, modularization detection cannot be performed, and unified monitoring is formed. And the gas composition under the mine is complicated, and the degree of wetness is high, very easily damages gas detection sensor, leads to the measured data inaccurate, increases cost expenditure, even causes the threat to human safety.
Disclosure of Invention
Therefore, the invention provides a data processing terminal with multiple gas detection capabilities, and aims to solve the problems of low detection accuracy and low integration degree of the existing underground gas concentration.
In order to achieve the above purpose, the invention provides the following technical scheme:
the invention discloses a data processing terminal with multiple gas detection capability, which comprises: pump and inhale module, sensing module and NB-IOT module, pump and inhale the module and will descend gaseous at the uniform velocity and inhale sensing module, be equipped with solid impurity filtering and dehydrating unit in pumping the module, carry out prefilter and dehumidification to inhaling the gas, sensing module includes the gas sensor of a plurality of integrated multiple functions, through the concentration of each composition in the multiple sensor analysis gas, NB-IOT module control pump pumps the power supply of module and sensing module to establish with sensing module and be connected, receiving and dispatching control instruction, the gaseous concentration value that conveying sensing module detected, and establish communication connection with the backstage system.
Further, the pumping module comprises: getter pump, waterproof ventilated membrane, check valve and water-absorbing resin, the air inlet at the getter pump is installed to the check valve, admits air through check valve control one-way, waterproof ventilated membrane sets up in the check valve rear side, carries out prefilter to the moisture in the inspired gas, water-absorbing resin sets up in waterproof ventilated membrane rear side, carries out the absorption of moisture to the inspired gas once more, guarantees gaseous aridity.
Further, the sensing module includes: trinity sensor, methane sensor and temperature and humidity sensor, integrated carbon monoxide sensor of trinity sensor, hydrogen sulfide sensor and oxygen sensor, the concentration of carbon monoxide, hydrogen sulfide and oxygen in can once only detecting gas through trinity sensor, the methane detects the content of methane in the detection gas, temperature and humidity sensor detects gaseous temperature and humidity, trinity sensor and methane sensor all pump the module with pump and be connected, temperature and humidity sensor directly is in open environment.
Further, a main control unit and a collection processing unit are further arranged in the three-in-one sensor, the main control unit receives the instruction sent by the NB-IOT module, the instruction collection and data return are carried out, and the collection processing unit processes collected data into a gas concentration value after receiving the gas concentration collection instruction.
Further, be provided with multiple chemical reagent in the trinity sensor, after the inspiratory gas, the gas and the chemical reagent of different compositions react, the sensor electromotive force difference that each component arouses around the collection processing unit collection chemical reaction in the trinity sensor, the sensor current changes along with gas concentration change, converts the current value into the magnitude of voltage through voltage converter, converts the magnitude of voltage of gathering into the gas concentration value through gathering the processing unit, and the gas concentration value is conveyed to the main control unit.
Furthermore, a main control unit and an acquisition processing unit are also arranged in the methane sensor, the main control unit receives the instruction sent by the NB-IOT module, and performs instruction collection and data return, and the acquisition processing unit processes the acquired data into a methane concentration value after receiving the methane concentration acquisition instruction.
Further, the NB-IOT module supplies power to the three-in-one sensor, the methane sensor, the temperature and humidity sensor and the pump suction module, and the NB-IOT module sends a gas concentration acquisition instruction to the main control unit of the methane sensor and the three-in-one sensor through serial port communication.
Further, the main control unit of the methane sensor and the three-in-one sensor sends the collected and processed gas concentration value to the NB-IOT module through serial port communication, an I2C interface of gas temperature and humidity data collected by the temperature and humidity sensor is sent to the NB-IOT module, and the NB-IOT module sends the collected gas concentration value to the background system.
The invention has the following advantages:
the invention discloses a data processing terminal with multiple gas detection capabilities, which can detect the concentrations of carbon monoxide, hydrogen sulfide and oxygen by utilizing a three-in-one sensor, has high integration level and multiple gas concentration detection capabilities, ensures that the sucked gas is dry and does not contain solid impurities by a pumping module, reduces the damage to each sensor, reduces the cost and ensures the detection accuracy of the sensor. Meanwhile, the NB-IOT module can perform power supply control, command issuing, data returning and integration of multiple functions, and the operation is more convenient.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below. It should be apparent that the drawings in the following description are merely exemplary, and that other embodiments can be derived from the drawings provided by those of ordinary skill in the art without inventive effort.
The structures, ratios, sizes, and the like shown in the present specification are only used for matching with the contents disclosed in the specification, so as to be understood and read by those skilled in the art, and are not used to limit the conditions that the present invention can be implemented, so that the present invention has no technical significance, and any structural modifications, changes in the ratio relationship, or adjustments of the sizes, without affecting the effects and the achievable by the present invention, should still fall within the range that the technical contents disclosed in the present invention can cover.
FIG. 1 is a schematic view of the interior of a three-in-one sensor of a data processing terminal with multiple gas detection capabilities according to an embodiment of the present invention;
FIG. 2 is a circuit diagram of a carbon oxide sensor acquisition processing unit according to an embodiment of the present invention;
FIG. 3 is a circuit diagram of an oxygen sensor acquisition processing unit according to an embodiment of the present invention;
FIG. 4 is a circuit diagram of a hydrogen sulfide sensor acquisition processing unit provided by an embodiment of the present invention;
FIG. 5 is a circuit diagram of a triad sensor provided by an embodiment of the present invention;
FIG. 6 is a circuit diagram of an NB-IOT module according to an embodiment of the present invention;
in the figure: 1-three-in-one sensor, 2-carbon monoxide sensor acquisition and processing unit, 3-oxygen sensor acquisition and processing unit, 4-hydrogen sulfide sensor acquisition and processing unit, 5-main control unit and 6-serial port
Detailed Description
The present invention is described in terms of particular embodiments, other advantages and features of the invention will become apparent to those skilled in the art from the following disclosure, and it is to be understood that the described embodiments are merely exemplary of the invention and that it is not intended to limit the invention to the particular embodiments disclosed. 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.
Examples
The embodiment discloses a data processing terminal with multiple gas detection capabilities, which comprises: pump and inhale module, sensing module and NB-IOT module, pump and inhale the module and will descend gaseous at the uniform velocity and inhale sensing module, be equipped with solid impurity filtering and dehydrating unit in pumping the module, carry out prefilter and dehumidification to inhaling the gas, sensing module includes the gas sensor of a plurality of integrated multiple functions, through the concentration of each composition in the multiple sensor analysis gas, NB-IOT module control pump pumps the power supply of module and sensing module to establish with sensing module and be connected, receiving and dispatching control instruction, the gaseous concentration value that conveying sensing module detected, and establish communication connection with the backstage system.
The underground environment of the mine is a high-humidity environment, and relatively harsh air can be accompanied by other impurity particles, and the air contains moisture and impurities, so that the accuracy of gas detection is affected. The traditional air suction method generally directly adopts an air pump to suck ambient air, and causes great harm to a sensor. In this implementation inhales the sensor with ambient gas through pumping the module, it includes to pump the module: the air suction pump comprises an air suction pump, a waterproof breathable film, a one-way valve and water-absorbent resin, wherein the one-way valve is arranged at an air inlet of the air suction pump, one-way air inlet is controlled by the one-way valve, the stability of sucked air is ensured, and the air is placed to flow backwards; waterproof ventilated membrane sets up at the check valve rear side, carries out the prefilter to the moisture in the inspiratory gas, water-absorbing resin sets up at waterproof ventilated membrane rear side, carries out the absorption of moisture to inspiratory gas once more, guarantees gaseous aridity. Can guarantee the drying of inspiratory gas through waterproof ventilated membrane and water-absorbing resin, avoid moist air to cause the damage of sensor to waterproof ventilated membrane and water-absorbing resin only carry out filtration absorption to moisture, can not cause the change to inspiratory gas's chemical cost, cause the influence to the testing result.
In this embodiment, the sensing module includes: three-in-one sensor 1, methane sensor and temperature and humidity sensor, the concentration of carbon monoxide, hydrogen sulfide and oxygen in three-in-one sensor 1 integrated carbon monoxide sensor, hydrogen sulfide sensor and the oxygen sensor can once only detect gas through three-in-one sensor 1, the methane detects the content of methane in the detection gas, temperature and humidity sensor detects gaseous temperature and humidity, three-in-one sensor 1 and methane sensor all pump the module with the pump and be connected, temperature and humidity sensor directly is in open environment. The three-in-one sensor 1, the methane sensor and the temperature and humidity sensor are all powered through the NB-IOT module.
Be provided with main control unit 5 and collection processing unit in trinity sensor 1, main control unit 5 receives the instruction that the NB-IOT module sent, carries out instruction collection and data passback, collection processing unit is after receiving gas concentration collection instruction, becomes gas concentration value with the data processing of gathering, and main control unit 5 conveys the gas concentration value that detects to NB-IOT module.
In this embodiment, NB-IoT module normally awakens up when needing to gather trinity sensor 1 module data, gives trinity sensor 1 module and pumps the module power supply through the control power supply, then pumps the module and begin work with trinity sensor 1 module.
Referring to fig. 1, be provided with multiple chemical reagent in the trinity sensor 1, inhale gaseous back, the gas and the chemical reagent of different compositions react, the collection processing unit in the trinity sensor 1 is including carbon monoxide sensor collection processing unit 2, oxygen sensor collection processing unit 3 and hydrogen sulfide sensor collection processing unit 4, the sensor electromotive force difference that each component arouses around each collection processing unit collection chemical reaction in the trinity sensor 1, sensor current changes along with gas concentration change, convert current value into voltage value through voltage converter, convert into gas concentration value through each collection processing unit with the voltage value who gathers, gas concentration value is conveyed to main control unit 5. Referring to fig. 2, 3 and 4, the gas concentration detection value is transmitted to the three-in-one sensor 1 module main control unit 5U201 through the SDADC1 of the carbon monoxide sensor acquisition processing unit 2, the SDADC2 of the oxygen sensor acquisition processing unit 3 and the SDADC3 of the hydrogen sulfide sensor acquisition processing unit 4, and the three-in-one sensor 1 module main control unit 5U201 transmits the detection value to the NB-IOT module through serial port 6 communication.
The methane sensor is also internally provided with a main control unit 5 and a collection processing unit, the main control unit 5 receives an instruction sent by the NB-IOT module, the instruction collection and data return are carried out, the collection processing unit processes collected data into a methane concentration value after receiving the methane concentration collection instruction, and after the methane sensor is detected, the detection value is sent to the NB-IOT module through serial port 6 communication.
Referring to fig. 5 and 6, the 32 interface of BC26 of the NB-IOT module is at a high level, controlling the power supply to power the methane sensor module, the temperature and humidity sensor module, the pumping module, and the triad sensor 1 module. After each sensor normally works, data acquisition instructions are sent to each sensor through 39 and 29 interfaces of the NB-IOT module BC26, a main control unit 5 of the methane sensor and the three-in-one sensor 1 sends acquired and processed gas concentration values to 38 and 28 interfaces of the NB-IOT module BC26 through serial port 6 communication, gas temperature and humidity data acquired by the temperature and humidity sensor are sent to 21 interfaces of the NB-IOT module BC26 through serial port 6 communication, and the NB-IOT module sends acquired gas concentration values to a background system. After receiving the data, the background system can analyze the data value, perform early warning in time, send out alarm information when the concentration of a certain gas exceeds a safety threshold, control corresponding exhaust equipment to accelerate exhaust, and dilute the concentration of the gas exceeding the standard.
The disclosed data processing terminal with multiple gaseous detectability of this embodiment utilizes trinity sensor 1 can detect the concentration of carbon monoxide, hydrogen sulfide and oxygen, and the integrated level is high, has multiple gaseous concentration detectability, pumps the module and guarantees inspiratory gas drying, not have solid impurity, reduces the harm to each sensor, and reduce cost guarantees the accuracy that the sensor detected. Meanwhile, the NB-IOT module can perform power supply control, command issuing, data returning and integration of multiple functions, and the operation is more convenient.
Although the invention has been described in detail above with reference to a general description and specific examples, it will be apparent to one skilled in the art that modifications or improvements may be made thereto based on the invention. Accordingly, such modifications and improvements are intended to be within the scope of the invention as claimed.
Claims (8)
1. A data processing terminal having multiple gas detection capabilities, the data processing terminal comprising: pump and inhale module, sensing module and NB-IOT module, pump and inhale the module and will descend gaseous at the uniform velocity and inhale sensing module, be equipped with solid impurity filtering and dehydrating unit in pumping the module, carry out prefilter and dehumidification to inhaling the gas, sensing module includes the gas sensor of a plurality of integrated multiple functions, through the concentration of each composition in the multiple sensor analysis gas, NB-IOT module control pump pumps the power supply of module and sensing module to establish with sensing module and be connected, receiving and dispatching control instruction, the gaseous concentration value that conveying sensing module detected, and establish communication connection with the backstage system.
2. A data processing terminal having multiple gas detection capabilities as defined in claim 1, wherein said pumping module comprises: getter pump, waterproof ventilated membrane, check valve and water-absorbing resin, the air inlet at the getter pump is installed to the check valve, admits air through check valve control one-way, waterproof ventilated membrane sets up in the check valve rear side, carries out prefilter to the moisture in the inspired gas, water-absorbing resin sets up in waterproof ventilated membrane rear side, carries out the absorption of moisture to the inspired gas once more, guarantees gaseous aridity.
3. The data processing terminal with multiple gas detection capabilities of claim 1, wherein said sensing module comprises: trinity sensor, methane sensor and temperature and humidity sensor, integrated carbon monoxide sensor of trinity sensor, hydrogen sulfide sensor and oxygen sensor, the concentration of carbon monoxide, hydrogen sulfide and oxygen in can once only detecting gas through trinity sensor, the methane detects the content of methane in the detection gas, temperature and humidity sensor detects gaseous temperature and humidity, trinity sensor and methane sensor all pump the module with pump and be connected, temperature and humidity sensor directly is in open environment.
4. The data processing terminal with multiple gas detection capabilities according to claim 3, wherein a main control unit and an acquisition processing unit are further disposed in the three-in-one sensor, the main control unit receives the instruction sent by the NB-IOT module, and performs instruction collection and data return, and the acquisition processing unit processes the acquired data into a gas concentration value after receiving the gas concentration acquisition instruction.
5. The data processing terminal with multiple gas detection capabilities as claimed in claim 4, wherein multiple chemical reagents are disposed in the three-in-one sensor, after the gas is inhaled, the gas with different components reacts with the chemical reagents, the collecting and processing unit in the three-in-one sensor collects the electromotive force difference of the sensor caused by each component before and after the chemical reaction, the current of the sensor changes along with the change of the gas concentration, the current value is converted into a voltage value by a voltage converter, the collected voltage value is converted into a gas concentration value by the collecting and processing unit, and the gas concentration value is transmitted to the main control unit.
6. The data processing terminal with multiple gas detection capabilities according to claim 3, wherein a main control unit and an acquisition processing unit are also arranged in the methane sensor, the main control unit receives the instruction sent by the NB-IOT module to perform instruction collection and data return, and the acquisition processing unit processes the acquired data into a methane concentration value after receiving the methane concentration acquisition instruction.
7. The data processing terminal with multi-gas detection capability of claim 1, wherein the NB-IOT module supplies power to the three-in-one sensor, the methane sensor, the temperature and humidity sensor, and the pumping module, and the NB-IOT module sends a gas concentration acquisition command to the methane sensor and the main control unit of the three-in-one sensor through serial communication.
8. The data processing terminal with multi-gas detection capability of claim 3, wherein the main control unit of the methane sensor and the three-in-one sensor sends the collected and processed gas concentration value to the NB-IOT module through serial port communication, the gas temperature and humidity data collected by the temperature and humidity sensor is sent to the NB-IOT module through an I2C interface, and the NB-IOT module sends the collected gas concentration value to the background system.
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| CN202110205742.8A CN113049636A (en) | 2021-02-24 | 2021-02-24 | Data processing terminal with multiple gas detection ability |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115561185A (en) * | 2022-09-01 | 2023-01-03 | 中煤科工集团沈阳研究院有限公司 | Multi-component gas online analysis system and analysis method based on spectral absorption technology |
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2021
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Patent Citations (5)
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| CN203824984U (en) * | 2014-04-17 | 2014-09-10 | 河南省智仪系统工程有限公司 | Handheld multi-component gas detection alarm apparatus |
| US20160361452A1 (en) * | 2015-06-15 | 2016-12-15 | Lunatech, Llc | Localized Air Sensing And Treatment |
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| CN115561185A (en) * | 2022-09-01 | 2023-01-03 | 中煤科工集团沈阳研究院有限公司 | Multi-component gas online analysis system and analysis method based on spectral absorption technology |
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