CN217060145U - Wireless industrial gas detector - Google Patents
Wireless industrial gas detector Download PDFInfo
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- CN217060145U CN217060145U CN202220457768.1U CN202220457768U CN217060145U CN 217060145 U CN217060145 U CN 217060145U CN 202220457768 U CN202220457768 U CN 202220457768U CN 217060145 U CN217060145 U CN 217060145U
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Abstract
The utility model discloses a wireless type industrial gas detector, including installing support, lower casing, sensor sealing washer, sensor mounting groove, main circuit board, battery installation division board, battery, go up casing, MCU treater, power conversion module, wireless thing networking communication module and a pair of gas sensor. The gas sensor is positioned in the sealing cover, the lower shell is also provided with a waterproof boss, and a sealing ring is arranged between the upper shell and the lower shell, so that the sealing property is greatly improved, and the gas sensor has excellent waterproof and dustproof performances. Two nano semiconductor gas sensors with the same specification are adopted for pairing, and a Wheatstone bridge mechanism is adopted for connection, so that the functions of automatic zero calibration and automatic attenuation judgment can be realized, and the reliability of the detector is improved. The gas detector of the utility model has no screen, no button and no cable, the device is miniaturized, the structure is simple, and the appearance is small and exquisite; the devices are all low-power consumption type, and the working time of the device is prolonged while the uninterrupted real-time monitoring of the gas concentration is realized.
Description
Technical Field
The utility model relates to an industrial gas monitoring technology field especially relates to a wireless type industrial gas detector.
Background
In an industrial scene, a plurality of areas are inconvenient to enter, such as an explosion-proof area, a limited space, the top of a storage tank, the high position of a reaction tower and the like, and if the gas concentration is detected, on one hand, the field personnel are inconvenient to enter periodically to measure the gas; on the other hand, the conventional wired fixed gas detector is inconvenient to install because the conventional wired fixed gas detector involves arrangement of a power supply cable and a sensing signal transmission cable and is large in size. Although it has been reported that some industrial stationary gas detection devices provide battery-powered selection, and at the same time, wired communication is upgraded to wireless communication for data transmission, generally, battery-powered devices have a relatively short continuous operation time, which is difficult to exceed one year, and in many cases, gas detectors in the devices operate intermittently. In addition, the existing gas detection equipment is provided with a screen, keys and other display and operation interaction surfaces, so that the complexity of the equipment is increased, and the overall power consumption of the equipment is further increased; meanwhile, the protection performance of the equipment is also to be improved.
SUMMERY OF THE UTILITY MODEL
The utility model aims at providing a wireless type industrial gas detector has that the appearance is small and exquisite, simple structure, low-power consumption and waterproof dirt-proof characteristics.
In order to achieve the above purpose, the utility model provides a following scheme:
a wireless industrial gas detector, comprising: the device comprises a mounting bracket, a lower shell, a sensor sealing ring, a sensor mounting groove, a main circuit board, a battery mounting isolation plate, a battery, an upper shell, an MCU (microprogrammed control Unit) processor, a power conversion module, a wireless Internet of things communication module and a gas sensing module; the gas sensing module comprises a pair of gas sensors; the pair of gas sensors includes a first nano-semiconductor sensor and a second nano-semiconductor sensor;
the battery is fixed in the upper shell through the battery mounting isolation plate by a screw; the main circuit board is positioned on one side of the battery installation isolation board far away from the battery; the sensor mounting groove is positioned on one side of the main circuit board far away from the battery mounting isolation plate; the gas sensor is arranged on the sensor mounting groove; the sensor sealing ring is positioned between the gas sensor and the lower shell; a hole is formed in the center of the lower shell, and the first nano semiconductor sensor is in exchange contact with outside air through the hole; the second nano-semiconductor sensor is sealed by a sealing cover; a waterproof boss is arranged on one side of the lower shell, which is far away from the gas sensor, along the periphery of the hole; the mounting bracket is detachably connected with one side of the lower shell, which is provided with the waterproof boss; the upper housing is engaged with the lower housing;
the MCU processor, the power conversion module and the wireless Internet of things communication module are arranged on the main circuit board; the battery is connected with the MCU processor through the power supply conversion module; the wireless Internet of things communication module and the gas sensing module are respectively connected with the MCU processor; the wireless Internet of things communication module and the gas sensing module are also respectively connected with the power supply conversion module; the wireless Internet of things communication module is further in wireless connection with the cloud platform.
Optionally, the MCU processor communicates with the gas sensing module in an ADC manner; the wireless Internet of things communication module is communicated with the MCU processor in a serial port USART mode.
Optionally, the gas sensing module further comprises a first resistor, a second resistor, and a voltmeter; the first resistor, the second resistor and the voltmeter are arranged on the main circuit board; the resistance values of the first resistor and the second resistor are close;
one end of the first resistor is connected with a first I/O port of the MCU processor, and the other end of the first resistor is connected with one end of the first nano semiconductor sensor; one end of the first nano semiconductor sensor is also connected with a second I/O port of the MCU processor; the other end of the first nano semiconductor sensor is connected with a third I/O port of the MCU processor;
one end of the second resistor is connected with one end of the first resistor, and the other end of the second resistor is connected with one end of the second nano semiconductor sensor; one end of the second nano semiconductor sensor is also connected with a fourth I/O port of the MCU processor; the other end of the second nano semiconductor sensor is connected with the other end of the first nano semiconductor sensor;
one end of the voltmeter is connected with one end of the first nano semiconductor sensor; the other end of the voltmeter is connected with one end of the second nanometer semiconductor sensor.
Optionally, the MCU processor model is STM32L031F6P 6; the model of the wireless Internet of things communication module is LPM2100 MC; the gas sensor is an ENS-201/ENS-202 series VOCs sensor of the Netzian science and technology.
Optionally, both sides of the battery mounting separator are coated with an insulating layer.
Optionally, a sealing ring is arranged between the upper shell and the lower shell.
Optionally, the battery is an explosion-proof battery; the length of the explosion-proof battery is not more than 60mm, the width of the explosion-proof battery is not more than 50mm, and the thickness of the explosion-proof battery is not more than 30 mm.
Optionally, the wireless industrial gas detector has external dimensions of 74mm in length, 58mm in width and 42mm in thickness.
Optionally, a barb is disposed on the mounting bracket.
According to the utility model provides a concrete embodiment, the utility model discloses a following technological effect:
the utility model provides a wireless type industrial gas detector, include: the device comprises a mounting bracket, a lower shell, a sensor sealing ring, a sensor mounting groove, a main circuit board, a battery mounting isolation plate, a battery, an upper shell, an MCU (microprogrammed control unit) processor, a power conversion module, a wireless Internet of things communication module and a gas sensing module; the gas sensing module comprises a pair of gas sensors; the pair of gas sensors includes a first nano-semiconductor sensor and a second nano-semiconductor sensor; the battery is fixed in the upper shell through the battery mounting isolation plate by a screw; the main circuit board is positioned on one side of the battery installation isolation board far away from the battery; the sensor mounting groove is positioned on one side of the main circuit board, which is far away from the battery mounting isolation plate; the gas sensor is arranged on the sensor mounting groove; the sensor sealing ring is positioned between the gas sensor and the lower shell; a hole is formed in the center of the lower shell, and the first nano semiconductor sensor is in exchange contact with outside air through the hole; the second nano-semiconductor sensor is sealed by a sealing cover; a waterproof boss is arranged along the periphery of the hole on one side of the lower shell, which is far away from the gas sensor; the mounting bracket is detachably connected with one side of the lower shell, which is provided with the waterproof boss; the upper housing is engaged with the lower housing; the MCU processor, the power conversion module and the wireless Internet of things communication module are arranged on the main circuit board; the battery is connected with the MCU processor through the power conversion module; the wireless Internet of things communication module and the gas sensing module are respectively connected with the MCU processor; the wireless Internet of things communication module and the gas sensing module are also respectively connected with the power supply conversion module; the wireless Internet of things communication module is further in wireless connection with the cloud platform. The wireless industrial gas detector provided by the utility model has no screen, no key and no cable, and the battery, the main circuit board, the gas sensor and the like are encapsulated in the shell, so that the equipment is miniaturized, and the wireless industrial gas detector has simple structure, small appearance and lower power consumption; the gas sensor is positioned in the sealing cover and on the lower shell, a waterproof boss is further arranged, a sealing ring is arranged between the upper shell and the lower shell, and the like, so that the sealing property is greatly improved, and the gas sensor has excellent waterproof and dustproof performances.
Furthermore, the utility model discloses a nanometer semiconductor gas sensor of two the same specifications pairs, adopts the mechanism of wheatstone bridge to connect, can realize automatic zero calibration and the automatic function of judging of decay, improves the reliability of detector. The MCU processor with low power consumption, the gas sensor and the wireless Internet of things communication device are adopted, remote instruction issuing is realized in a wireless communication mode, the gas sensor is calibrated and calibrated, and the working time of the device is prolonged while the gas concentration is continuously monitored in real time. The two sides of the battery installation isolation plate are coated with the oil insulation layers, so that the interference of the main circuit board to the battery can be effectively prevented, and meanwhile, the battery and the main circuit board are separated, so that the battery is prevented from being pierced, and the safety of equipment is ensured. The installation support is provided with a barb which can be matched with a metal hoop to be fixed on a pipeline and a device, so that the gas detector is convenient to deploy.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required to be used in the embodiments will be briefly described below, 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 that other drawings can be obtained according to the drawings without inventive labor.
Fig. 1 is an exploded view of a wireless industrial gas detector provided by the present invention;
fig. 2 is a schematic diagram of a functional architecture of a wireless industrial gas detector according to the present invention;
fig. 3 is a schematic diagram of a circuit connection of the gas sensing module provided by the present invention;
fig. 4 is a schematic structural diagram of a sealing cover of the gas sensor sealing cover provided by the present invention;
fig. 5 is a schematic circuit connection diagram of the power conversion module provided by the present invention;
fig. 6 is a schematic circuit connection diagram of the power management module provided by the present invention;
fig. 7 is a schematic circuit connection diagram of the wireless internet of things communication module provided by the present invention;
fig. 8 is a schematic diagram of a circuit connection of the gas sensing module provided by the present invention;
description of the symbols: 1. installing support, 2, waterproof boss, 3, lower casing, 4, the sensor sealing washer, 5, gas sensor, 6, the sensor mounting groove, 7, main circuit board, 8, battery installation division board, 9, the battery, 10, go up the casing, 11, the MCU treater, 12, power conversion module, 13, wireless thing networking communication module, 14, gas sensing module, 15, first power management module, 16, second power management module, 17, bluetooth module, R1, first resistance, R2, the second resistance, S1, first nanometer semiconductor sensor, S2, the second nanometer semiconductor sensor, V, the voltmeter.
Detailed Description
The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.
The utility model aims at providing a wireless type industrial gas detector has that the appearance is small and exquisite, simple structure, low-power consumption, waterproof dirt-proof characteristics.
In order to make the above objects, features and advantages of the present invention more comprehensible, the present invention is described in detail with reference to the accompanying drawings and the detailed description.
Fig. 1 is an exploded view of a wireless industrial gas detector according to the present invention. As shown in fig. 1, the wireless type industrial gas detector includes a mounting bracket 1, a lower case 3, a sensor packing 4, a sensor 5, a sensor mounting groove 6, a main circuit board 7, a battery mounting isolation plate 8, a battery 9, and an upper case 10.
Specifically, the upper housing 10 and the lower housing 3 may be machined or injection molded, and the housing is made of antistatic plastic POM (polyoxymethylene) to prevent charges from accumulating on the surface. In order to ensure the falling-proof property, the shell thickness of the upper shell 10 and the lower shell 3 is at least 3.5 mm. Hole sites for installing internal parts are arranged in the upper shell 10, so that the parts are compact and stable. Go up casing 10 with lower casing 3 is by 8 screw connections, and between the sealing washer in addition, has guaranteed sealed compactedness, improves the leakproofness greatly.
The battery 9 passes through battery installation division board 8 is by the fix with screw in going up in the casing 10, battery installation division board 8 is made by metal material, and both sides scribble the insulating layer, can effectually prevent main circuit board 7 is right battery 9's interference separates simultaneously battery 9 with main circuit board 7 guarantees battery 9 is not impaled, guarantees the security of equipment.
The battery 9 is an explosion-proof battery, and in order to reduce the volume of the device, the whole size of the explosion-proof battery is controlled to be not more than 60mm in length, not more than 50mm in width and not more than 30mm in thickness. The battery 9 converts the voltage into 3.0V through the power conversion module 12 and supplies power to the whole equipment.
The main circuit board 7 is located on one side of the battery mounting isolation plate 8 far away from the battery 9 and is fixed inside the upper shell 10 through screws. The opposite side of main circuit board 7 has sensor mounting groove 6, sensor mounting groove 6 is used for the installation gas sensor 5, gas sensor 5 with be equipped with down between the casing 3 sensor sealing washer 4 to guarantee that liquid can not pass through inside gas sensor 5 and the gap entering equipment between the casing 3 down.
The center position design of casing 3 has the hole that cooperation gas sensor 5 came out down, is equipped with waterproof boss 2 in the periphery in hole for rainy day prevents that the rainwater from flowing into gas sensor 5's inside. The mounting bracket 1 is detachably mounted at the lowest part of the lower shell 3. As a specific example, the mounting bracket 1 and the lower case 3 are fastened by 4 screws. In practical application, the mounting bracket 1 is further provided with a barb which can be matched with a metal hoop to be fixed on a pipeline and a device, so that the gas detector can be conveniently deployed.
The wireless industrial gas detector has the overall dimensions of 74mm in length, 58mm in width and 42mm in thickness, and is small in size and flexible.
Fig. 2 is a schematic diagram of a functional architecture of a wireless industrial gas detector according to the present invention. As shown in fig. 2, the MCU processor 11, the power conversion module 12 and the wireless internet of things communication module 13 are disposed on the main circuit board 7 shown in fig. 1; the battery 9 is connected with the MCU processor 11 through the power conversion module 12; the circuit connections of the power conversion module 12 on the main circuit board 7 are shown in fig. 5. The wireless internet of things communication module 13 and the gas sensing module 14 are respectively connected with the MCU processor 11, the circuit connection of the wireless internet of things communication module 13 on the main circuit board 7 is shown in fig. 7, and the circuit connection of the gas sensing module 14 is shown in fig. 8. The wireless internet of things communication module 13 and the gas sensing module 14 are also respectively connected with the power conversion module 12; the wireless internet of things communication module 13 is further in wireless connection with the cloud platform. The battery 9 is connected to the power conversion module 12, and is configured to convert a battery voltage of 3.6V into 3.0V. The MCU processor 11 communicates with the gas sensing module 14 in an ADC mode; wireless thing networking communication module 13 through serial ports USART mode with MCU treater 11 communication. In practical applications, as a specific embodiment, the wireless internet of things communication module 13 adopts NB-IoT or LORA wireless internet of things transmission technology.
In practical applications, as a specific embodiment, the wireless industrial gas detector may further include a first power management module 15, a second power management module 16, and a bluetooth module 17. In this embodiment, the first power management module 15, the second power management module 16 and the bluetooth module 17 are also disposed on the main circuit board 7, and the circuit connection of the power management module on the main circuit board 7 is as shown in fig. 6. As shown in fig. 2, in this embodiment, the power conversion module 12 is connected to the MCU processor 11, the first power management module 15, and the second power management module 16 respectively. The first power management module 15 is connected with the wireless internet of things communication module 13, manages the electric energy and the voltage of the wireless internet of things communication module 13, and has a voltage stabilizing effect. The second power management module 16 is connected to the gas sensing module 14, manages the electric energy and voltage of the gas sensing module 14, and has a voltage stabilizing effect. The MCU processor 11 communicates with the gas sensing module 14 in an ADC mode, and is configured to collect gas concentration data monitored by the gas sensor. Wireless thing networking communication module 13 through serial ports USART mode with the communication of MCU treater 11 is still connected with the cloud platform through wireless network for the gas concentration data that will monitor upload the cloud platform, still be used for to MCU treater 11 issues the instruction, like uploading frequency, warning threshold value, zero point calibration etc.. As an extension of the communication function, the bluetooth module 17 respectively with the first power management module 15 the MCU processor 11 and the cloud platform are connected, and communicate with the MCU processor 11 through a serial port USART method.
The utility model provides an among the wireless type industrial gas detector, each functional device all adopts the electronic components of low-power consumption, for example MCU treater 11 selects STM32L031F6P6 model, wireless thing networking communication module 13 selects LPM2100MC model, gas sensor 5 selects ENS-201/ENS-202 series VOCs sensor of the company of science and technology, and the CC2640 model of TI is selected to the bluetooth. The utility model discloses all components and parts of wireless type industrial gas detector all adopt the electronic components and parts of low-power consumption, all select minimum volume specification under the prerequisite that satisfies the industrial scene and use, consequently, the utility model provides an overall dimension of wireless type industrial gas detector only is 74mm 58mm 42mm, small in size. Furthermore, because the utility model provides a wireless type industrial gas detector has got rid of the function of some non-main parts of outside, does not have the button operation for gas detector is simplified. Adopt built-in battery, the outside no power interface of power supply casing to gas sensor adopts the nanometer semiconductor gas sensor of normal atmospheric temperature, and the wireless thing networking transmission technology who adopts in addition, makes under the normal condition, and gas detector can continuous operation 2 years of a specified duration in the incessant real-time supervision, has greatly prolonged equipment operating duration.
Specifically, under the normal condition, the utility model provides a wireless type industrial gas detector is with low-power consumption mode standby operation, but gas sensor 5 supplies power work all the time, and data real-time transmission is handled and is judged the analysis to MCU processing module 11, has set up gas concentration alarm threshold value in the MCU processing module 11 procedure, if the gas concentration data of monitoring is less than the alarm threshold value of settlement, then pass on the gas concentration data of monitoring to the cloud platform through wireless thing networking communication module 13 according to the transmission frequency timing that the procedure set up; and if the monitored gas concentration data is greater than or equal to the set alarm threshold value, the wireless Internet of things communication module 13 is informed to upload the data to the cloud platform immediately. Wherein, the transmission frequency can be adjusted, and generally, the transmission is carried out once within 10 min-60 min. Through the above working mode, the timed uploading of the monitored gas concentration data is ensured, and the gas concentration data can be reported in time once the environmental gas concentration exceeds the standard in the field, so that the function of timely alarming is realized.
Fig. 3 is a schematic diagram of a circuit connection of the gas sensing module according to the present invention. As shown in FIG. 3, the gas sensing module 14 includes a first nano-semiconductor sensor S1, a second nano-semiconductor sensor S2, a first resistor R1, a second resistor R2 and a voltmeter V. Wherein the first resistor R1, the second resistor R2 and the voltmeter V are arranged on the main circuit board 7. As a specific example, the gas sensor 5 is selected from ENS-201/ENS-202 series VOCs sensors of Nissum technologies.
Specifically, in order to realize the automatic zero calibration and attenuation automatic judgment functions of the gas sensor, a wheatstone bridge mechanism as shown in fig. 3 is adopted, one end of the first resistor R1 is connected to the first I/O port of the MCU processor 11, the other end of the first resistor R1 is connected to one end of the first nano-semiconductor sensor S1, one end of the first nano-semiconductor sensor S1 is further connected to the second I/O port of the MCU processor 11, and the other end of the first nano-semiconductor sensor S1 is connected to the third I/O port of the MCU processor 11. That is, the first resistor R1 and the first nano-semiconductor sensor S1 are connected in series to form a connection branch, the left end of the connection branch is connected to the first I/O port of the MCU processor 11, the right end of the connection branch is connected to the third I/O port of the MCU processor 11, and the connection point a of the first resistor R1 and the first nano-semiconductor sensor S1 is connected to the second I/O port of the MCU processor 11.
One end of the second resistor R2 is connected with one end of the first resistor R1, the other end of the second resistor R2 is connected with one end of the second nano semiconductor sensor S2, one end of the second nano semiconductor sensor S2 is connected with the fourth I/O port of the MCU processor 11, and the other end of the second nano semiconductor sensor S2 is connected with the other end of the first nano semiconductor sensor S1. That is, the second resistor R1 and the second nano-semiconductor sensor S1 are connected in series to form a connection branch, the left end of the connection branch is connected to the first I/O port of the MCU processor 11, the right end of the connection branch is connected to the third I/O port of the MCU processor 11, and the connection point B between the second resistor R2 and the second nano-semiconductor sensor S2 is connected to the fourth I/O port of the MCU processor 11.
One end of the voltmeter V is connected with one end of the first nano-semiconductor sensor S1, and the other end of the voltmeter V is connected with one end of the second nano-semiconductor sensor S2. That is, the voltmeter V is connected between A, B two points.
In order to realize the automatic zero calibration and attenuation automatic judgment functions of the gas sensor, 2 nano-semiconductor gas sensors S1 and S2 with the same specification are adopted for pairing, as shown in fig. 4, a sealing cover of the first nano-semiconductor sensor S1 is provided with a hole, so that the first nano-semiconductor sensor S1 is ensured to be in exchange contact with outside air and normally exposed to the environment. The second nano semiconductor sensor S2 is sealed by the sealing cover, and the sealing cover has no hole, so that the contact with the external environment gas is avoided, and the attenuation of the sensor is also avoided. The resistance of the first nano-semiconductor sensor S1 and the resistance of the second nano-semiconductor sensor S2 are close. The first resistor R1 and the second resistor R2 have similar resistance values. And judging the concentration of the gas to be measured in the environment through the change of the voltage at two ends of the first nano-semiconductor sensor S1.
Specifically, the principle of automatic zero calibration is as follows: the change in voltage V between AB over a long period of time is first recorded, and as a specific example, the change in voltage V between AB over a 1-week period may be recorded. And taking the minimum value Min (V) of the voltage V in the period of time as a zero point at the moment, and recording the voltage value at the two ends of the first nano-semiconductor sensor S1 at the zero point moment, wherein the voltage value is the voltage of the zero point.
The principle of attenuation automatic judgment is as follows: because the resistances of the first nano-semiconductor sensor S1 and the second nano-semiconductor sensor S2 are close to each other, the first nano-semiconductor sensor S1 is exposed to the ambient air, and is in contact with the gas to be measured for a long time, the aging decay speed of the first nano-semiconductor sensor S1 is faster than that of the second nano-semiconductor sensor S2, and the resistance of the first nano-semiconductor sensor S1 is increased and changed after the first nano-semiconductor sensor S1 meets the gas to be measured, so that whether the first nano-semiconductor sensor S1 has been decayed seriously and needs to be replaced can be judged through the voltage V between the terminals AB. When min (v) is greater than the set threshold, it can be determined that the first nano-semiconductor sensor S1 has decayed to a certain extent relative to the sealed second nano-semiconductor sensor S2, and needs to be replaced in time.
The gas sensing module adopts two nano semiconductor gas sensors with the same specification to pair, adopts a Wheatstone bridge mechanism to connect, can realize the automatic zero calibration and attenuation automatic judgment functions, and improves the reliability of the gas detector on gas monitoring.
The embodiments in the present description are described in a progressive manner, each embodiment focuses on differences from other embodiments, and the same and similar parts among the embodiments are referred to each other.
The principle and the implementation of the present invention are explained herein by using specific examples, and the above description of the embodiments is only used to help understand the method and the core idea of the present invention; meanwhile, for the general technical personnel in the field, according to the idea of the present invention, there are changes in the concrete implementation and the application scope. In summary, the content of the present specification should not be construed as a limitation of the present invention.
Claims (9)
1. A wireless industrial gas detector, comprising: the device comprises a mounting bracket, a lower shell, a sensor sealing ring, a sensor mounting groove, a main circuit board, a battery mounting isolation plate, a battery, an upper shell, an MCU (microprogrammed control unit) processor, a power conversion module, a wireless Internet of things communication module and a gas sensing module; the gas sensing module comprises a pair of gas sensors; the pair of gas sensors includes a first nano-semiconductor sensor and a second nano-semiconductor sensor;
the battery is fixed in the upper shell through the battery mounting isolation plate by a screw; the main circuit board is positioned on one side of the battery installation isolation plate, which is far away from the battery; the sensor mounting groove is positioned on one side of the main circuit board far away from the battery mounting isolation plate; the gas sensor is arranged on the sensor mounting groove; the sensor sealing ring is positioned between the gas sensor and the lower shell; a hole is formed in the center of the lower shell, and the first nano semiconductor sensor is in exchange contact with outside air through the hole; the second nano-semiconductor sensor is sealed by a sealing cover; a waterproof boss is arranged along the periphery of the hole on one side of the lower shell, which is far away from the gas sensor; the mounting bracket is detachably connected with one side of the lower shell, which is provided with the waterproof boss; the upper housing is engaged with the lower housing;
the MCU processor, the power conversion module and the wireless Internet of things communication module are arranged on the main circuit board; the battery is connected with the MCU processor through the power supply conversion module; the wireless Internet of things communication module and the gas sensing module are respectively connected with the MCU processor; the wireless Internet of things communication module and the gas sensing module are also respectively connected with the power supply conversion module; the wireless Internet of things communication module is further in wireless connection with the cloud platform.
2. The wireless industrial gas detector as claimed in claim 1, wherein the MCU processor communicates with the gas sensing module by means of ADC; the wireless Internet of things communication module is communicated with the MCU processor in a serial port USART mode.
3. The wireless industrial gas detector of claim 1, wherein the gas sensing module further comprises a first resistor, a second resistor, and a voltmeter; the first resistor, the second resistor and the voltmeter are arranged on the main circuit board; the resistance values of the first resistor and the second resistor are close;
one end of the first resistor is connected with a first I/O port of the MCU processor, and the other end of the first resistor is connected with one end of the first nano semiconductor sensor; one end of the first nano semiconductor sensor is also connected with a second I/O port of the MCU processor; the other end of the first nano semiconductor sensor is connected with a third I/O port of the MCU processor;
one end of the second resistor is connected with one end of the first resistor, and the other end of the second resistor is connected with one end of the second nano semiconductor sensor; one end of the second nano semiconductor sensor is also connected with a fourth I/O port of the MCU processor; the other end of the second nano semiconductor sensor is connected with the other end of the first nano semiconductor sensor;
one end of the voltmeter is connected with one end of the first nano semiconductor sensor; and the other end of the voltmeter is connected with one end of the second nano semiconductor sensor.
4. The wireless type industrial gas detector of claim 1, wherein the MCU processor model is STM32L031F6P 6; the model of the wireless Internet of things communication module is LPM2100 MC; the gas sensor is an ENS-201/ENS-202 series VOCs sensor of the Nissan technology.
5. The wireless type industrial gas detector according to claim 1, wherein both sides of the battery mounting separator are coated with an insulating layer.
6. The wireless type industrial gas detector according to claim 1, wherein a sealing ring is provided between the upper case and the lower case.
7. The wireless type industrial gas detector according to claim 1, wherein the battery is an explosion-proof battery; the length of the explosion-proof battery is not more than 60mm, the width of the explosion-proof battery is not more than 50mm, and the thickness of the explosion-proof battery is not more than 30 mm.
8. The wireless industrial gas detector according to claim 1, wherein the wireless industrial gas detector has external dimensions of 74mm long, 58mm wide and 42mm thick.
9. The wireless industrial gas detector of claim 1, wherein the mounting bracket is provided with barbs.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202220457768.1U CN217060145U (en) | 2022-03-04 | 2022-03-04 | Wireless industrial gas detector |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202220457768.1U CN217060145U (en) | 2022-03-04 | 2022-03-04 | Wireless industrial gas detector |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN217060145U true CN217060145U (en) | 2022-07-26 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202220457768.1U Active CN217060145U (en) | 2022-03-04 | 2022-03-04 | Wireless industrial gas detector |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN217060145U (en) |
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2022
- 2022-03-04 CN CN202220457768.1U patent/CN217060145U/en active Active
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