CN217424439U - Sensor device and pipeline monitoring system - Google Patents
Sensor device and pipeline monitoring system Download PDFInfo
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- CN217424439U CN217424439U CN202221136971.5U CN202221136971U CN217424439U CN 217424439 U CN217424439 U CN 217424439U CN 202221136971 U CN202221136971 U CN 202221136971U CN 217424439 U CN217424439 U CN 217424439U
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Abstract
The utility model relates to a sensor device and pipeline monitoring system, wherein the sensor device comprises a base and a shell, the base is provided with a first side and a second side which are opposite and is positioned in a cavity of the shell, and the shell is provided with an airflow channel which can enable air to flow through; wherein, be provided with first sensor on the first side of basement, first sensor can be used for the velocity of flow of the gaseous of sensing flow in airflow channel, is provided with the second sensor on the second side of basement, and the second sensor can be used for the pressure of the gaseous of sensing flow in airflow channel, and is as with the utility model provides a sensor device when being used for pipeline monitoring system, has realized the multi-parameter measurement of velocity of flow and pressure, can know the operating mode information of pipeline comprehensively.
Description
Technical Field
The utility model relates to a sensor field especially relates to a sensor device and pipeline monitoring system.
Background
With the rapid development of society, large buildings, high-rise cities and various recreation places are increasingly increased, and the fire safety is more and more severe. Fire safety supervision lacks the cooperation of effective technical means support and socialization means, can't discover the conflagration hidden danger in time and take effective measure to eliminate great fire danger hidden danger.
The rapid development and deep application of internet technology make smart cities and smart fire-fighting possible, and sensors play an indispensable role in smart cities and smart fire-fighting. The general portable pitot tube that uses detects the condition of discharging fume of fire prevention exhaust pipe and the ventilation condition of air pipe in the existing market, but the pitot tube that commonly uses is a tubular device of measuring air current total pressure and static pressure in order to confirm air current velocity, in wisdom fire control, if only detect the gas velocity of flow, then can't grasp the operating mode information of exhaust pipe comprehensively.
SUMMERY OF THE UTILITY MODEL
The utility model provides a sensor device for during fire extinguishing system, insert the pipeline with sensor device and sealed can realize measuring to realized the multi-parameter measurement of velocity of flow and pressure, can know the operating mode information of pipeline comprehensively, concrete scheme is as follows:
in a first aspect, a sensor device (100) is provided, the sensor device (100) comprising a substrate (101) and a housing (102), the substrate (101) having opposite first and second sides and being located within a cavity of the housing (102), the housing (102) having a gas flow channel (103) through which a gas can flow;
wherein a first sensor (104) is arranged on the first side of the substrate (101), the first sensor (104) being operable to sense a flow rate of gas flowing within the gas flow channel (103), and a second sensor (105) is arranged on the second side of the substrate (101), the second sensor (105) being operable to sense a pressure of gas flowing within the gas flow channel (103).
Furthermore, a first air hole (106) for air to flow in and a second air hole (107) for air to flow out are formed in the shell (102), and the first air hole (106), the second air hole (107) and the air flow channel (103) form an air transmission path.
Further, a recess is provided on the first side of the substrate (101), the first sensor (104) is located within the recess, and a sensing surface of the first sensor (104) is flush with a surface of the first side of the substrate (101).
Further, a signal processing circuit structure (108) is arranged on the substrate (101), and the signal processing circuit structure (108) is used for carrying out preset processing on signals sensed by the first sensor (104) and the second sensor (105);
wherein the signal processing circuit arrangement (108) is electrically connected to the first sensor (104) by a first electrically conductive path and to the second sensor (105) by a second electrically conductive path.
Furthermore, the first sensor (104), the second sensor (105) and the signal processing circuit structure (108) are respectively connected with the substrate bonding pads through corresponding bonding pads, and sealing glue is arranged at the connection positions.
Further, the first sensor (104) is a micro-electro-mechanical systems (MEMS) based flow rate-temperature sensing chip.
Further, the second sensor (105) is a micro-electro-mechanical systems (MEMS) based pressure sensing chip.
Further, the housing (102) is cylindrical, the base (101) is rectangular, and the long side of the base (101) is placed along the axial direction of the housing (102);
the substrate (101) is fixedly connected with a first side cylindrical end portion (1021) of the shell (102), and the first side cylindrical end portion (1021) is of a closed structure.
Further, a signal transmission line (109) extending to the outside of a second side cylindrical end portion (1022) of the housing (102) is further disposed on the substrate (101), and a sealing body (110) for sealing the cavity is disposed in the second side cylindrical end portion (1022) of the housing (102).
Further, the signal processing circuit arrangement (108) comprises a wireless transmission unit for transmitting the processed signal to the outside.
In a second aspect, a pipeline monitoring system (1000) is provided, the system comprising a sensor device (100) as described above and a control device (200), the sensor device (100) being installed in a pipeline (300), the control device (200) being in wireless communication with the wireless transmission unit in the sensor device (100) to receive and process monitoring signals transmitted by the sensor device (100) and enable remote monitoring of the pipeline (300).
Further, the system further comprises an early warning device (400), and the control device (200) triggers the early warning device (400) to execute a corresponding early warning action if the gas pressure and the gas flow rate in the pipeline (300) monitored by the first sensor (104) and the second sensor (105) exceed preset threshold values.
Further, the control device (200) adjusts the operation mode of the sensor device (100) to a low power consumption mode in case the gas flow rate is smaller than a preset flow rate threshold.
Further, the duct is a smoke exhaust duct, the first sensor (104) is a Micro Electro Mechanical System (MEMS) based flow rate-temperature sensing chip, the system comprises a smoke exhaust fire valve disposed in the smoke exhaust duct, and the control device (200) automatically closes the smoke exhaust fire valve when the gas temperature measured by the first sensor (104) exceeds a preset temperature threshold.
The utility model provides a sensor device measures gaseous velocity of flow through first sensor, measures gaseous pressure through the second sensor, thereby has realized the multi-parameter measurement, can accurately discern the fault risk, thereby provide the basis for the monitoring of the operating mode state of pipeline, and first sensor and second sensor distribute in the both sides of basement, in the measuring process, gas can flow through the surface of first sensor and second sensor respectively, compare in the condition that different sensors set up on same surface, for the sensor device that has less size casing, because pressure sensor has a certain height because of protruding the basement surface, the fluctuation that gas when passing through pressure sensor can arouse when gas flows produces the turbulent flow, thereby produce the adverse effect to the measurement of velocity of flow, the utility model discloses the setting mode of first sensor and second sensor, two sensors distribute in the basement both sides, and gas need not to produce adverse effect at same basement surface through two sensors to avoid producing the measuring result to the velocity of flow, consequently the utility model discloses in the testing process mutually noninterfere of two sensors, and further, first sensor is velocity of flow-temperature sensing chip, and the measurement of two parameters of velocity of flow and temperature can be realized to first sensor, and two sensor distributions have reduced the size that the basement radially occupied at the casing in basement both sides, thereby have reduced sensor device's size, can be suitable for the pipeline of multiple size, have enlarged the range of application.
Drawings
The technical solution and other advantages of the present invention will become apparent from the following detailed description of the embodiments of the present invention with reference to the accompanying drawings.
Fig. 1 is a front view of a sensor device in an embodiment of the invention;
fig. 2 is a side view of a sensor device in an embodiment of the invention;
fig. 3 is a schematic view of a housing of a sensor device according to an embodiment of the present invention, cut along a gas flow direction and on a first side of a substrate;
fig. 4 is a schematic view of a housing of a sensor device according to an embodiment of the present invention, taken along a gas flow direction, on a second side of a substrate;
fig. 5 is a schematic diagram of a pipeline monitoring system according to an embodiment of the present invention.
Detailed Description
The technical solution in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention. It is to be understood that the embodiments described are only some embodiments of the invention, and not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by the skilled in the art without creative work belong to the protection scope of the present invention.
The utility model provides a sensor device, which comprises a substrate and a shell, wherein the substrate is provided with a first side and a second side which are opposite and is positioned in a cavity of the shell, and the shell is provided with an airflow channel which can enable gas to flow through; wherein, be provided with first sensor on the first side of basement, first sensor can be used for the velocity of flow of the gaseous of sensing flow in airflow channel, be provided with the second sensor on the second side of basement, the second sensor can be used for the pressure of the gaseous pressure of sensing flow in airflow channel, when using the sensor device in the utility model for among the pipe-line system, insert the sensor device into the pipeline and sealed and can realize measuring, and the sensor device can measure the velocity of flow of gas through first sensor, measure gaseous pressure through the second sensor, thereby realize the multi-parameter measurement, and combine these parameters together and can accurately discern the fault risk, exemplarily, the pipeline is air pipe, if the velocity of flow that the first sensor measured is less, then combine the pressure that the second pressure sensor measured, if the pressure is less, then the possible condition is fan unusual, therefore, a foundation is provided for monitoring the working condition state of the pipeline. Furthermore, the first sensor and the second sensor are distributed on two sides of the substrate, during the measurement process, the gas can respectively flow through the surfaces of the first sensor and the second sensor, compared with the situation that different sensors are arranged on the same surface, for the sensor device with a smaller size shell, because the pressure sensor protrudes out of the substrate surface and has a certain height, the gas can cause the fluctuation of the gas during flowing to generate turbulent flow when passing through the pressure sensor, thereby generating adverse effect on the measurement of the subsequent flow rate, the arrangement mode of the first sensor and the second sensor in the utility model, two sensors are distributed on two sides of the substrate, the gas does not need to pass through two sensors on the same substrate surface, thereby avoiding the adverse effect on the measurement result of the flow rate, therefore, the detection processes of the two sensors are not interfered with each other, and furthermore, the first sensor is a flow velocity-temperature sensing chip, the first sensor can realize the measurement of two parameters of flow velocity and temperature, and the two sensors are distributed on the two sides of the substrate, so that the size of the substrate occupied in the radial direction of the shell is reduced, the size of the sensor device is reduced, the sensor device can be suitable for pipelines with various sizes, and the application range is expanded.
The sensor device of the present invention will be further described in detail with reference to the accompanying drawings.
With reference to fig. 1 and 2, a sensor device 100 is provided, the sensor device 100 includes a substrate 101 and a housing 102, the substrate 101 has a first side and a second side opposite to each other and is located in a cavity of the housing 102, the housing 102 has a gas flow channel 103 through which gas can flow;
wherein a first sensor 104 is disposed on a first side of the substrate 101, the first sensor 104 being operable to sense a flow rate of the gas flowing within the gas flow channel 103, and a second sensor 105 is disposed on a second side of the substrate 101, the second sensor 105 being operable to sense a pressure of the gas flowing within the gas flow channel 103.
If the sensor device 100 is used in a pipeline system, the measurement can be performed by simply inserting the sensor device 100 into the pipeline and sealing. When gas flows in the pipeline, the gas flows in the gas flow channel 103 and passes through the first sensor 104 and the second sensor 105, the first sensor 104 is used for detecting the wind speed in the pipeline, the second sensor 105 is used for measuring the pressure or the pressure difference of the gas in the pipeline, so that the measurement of multiple parameters such as the flow speed and the pressure is realized, a foundation is further provided for monitoring the working condition state of the pipeline, the pipeline is a ventilating pipeline exemplarily, if the flow speed measured by the first sensor is smaller, the pressure measured by the second pressure sensor is combined, and if the pressure is smaller, the fan is possibly abnormal. First sensor 104 and second sensor 105 distribute in the both sides of basement 101, and gas can be simultaneously through two sensors, to the sensor device who has less size casing, because pressure sensor protrusion basement surface and have a take the altitude, fluctuation when avoiding gas to arouse gas flow when passing through second sensor 105 produces the turbulent flow to measure to first sensor 104 velocity of flow produces adverse effect, and the utility model discloses in, two sensors distribute in the basement both sides, therefore the testing process mutually noninterfere of two sensors. Meanwhile, the first sensor 104 can realize the measurement of two parameters of the flow rate and the temperature, and the occupied space of the substrate and the sensor is saved.
Further, the housing 102 is provided with a first gas hole 106 through which gas flows in and a second gas hole 107 through which gas flows out, and the first gas hole 106, the second gas hole 107, and the gas flow passage 103 constitute a gas transmission path.
As shown in fig. 1 and 2, the housing 102 is provided with a first air hole 106 and a second air hole 107, a gas transmission path is formed by the first air hole 106, the second air hole 107 and the gas flow channel 103, and as shown in fig. 3 and 4, the surface of the first side and the surface of the second side of the substrate 101 are parallel to the gas flow direction, so that the sensing surfaces of the first sensor 104 and the second sensor 105 are parallel to the gas flow direction. The widths of the first and second gas holes 106 and 107 in the direction perpendicular to the flow of the gas are larger than the overall thickness of the first and second sensors 104 and 105 after being mounted on the substrate 101, so that the gas can flow through both the first and second sensors 104 and 105, thereby enabling the flow rate and pressure of the gas to be measured accurately.
Further, a groove is provided on the first side of the substrate 101, the first sensor 104 is located in the groove, and the sensing surface of the first sensor 104 is flush with the surface of the first side of the substrate 101.
In this embodiment, the first sensor 104 is disposed in a recess of the substrate 101, and the sensing surface is flush with the surface of the first side of the substrate 101 to avoid fluid fluctuations caused by unevenness of the surface of the first sensor 104, thereby improving the accuracy of the flow rate measurement.
Further, a signal processing circuit structure 108 is disposed on the substrate 101, and the signal processing circuit structure 108 is configured to perform preset processing on signals sensed by the first sensor 104 and the second sensor 105;
wherein the signal processing circuit structure 108 is electrically connected to the first sensor 104 through a first conductive path and electrically connected to the second sensor 105 through a second conductive path.
Illustratively, as shown in fig. 4, a signal processing circuit structure 108 is disposed on the second side of the substrate 101, and the electrical signals measured by the first sensor 104 and the second sensor 105 are processed by the signal processing circuit structure 108, wherein the first conductive path and the second conductive path may be conductive wires, illustratively, gold wires.
Further, the first sensor 104, the second sensor 105 and the signal processing circuit structure 108 are connected to the substrate pads through corresponding pads, respectively, and a sealant is disposed at the connection points.
In order to connect the first sensor 104, the second sensor 105 and the signal processing circuit structure 108 with the substrate 101, the corresponding pads of the first sensor 104, the second sensor 105 and the signal processing circuit structure 108 are welded with the substrate pads, and a sealant is further arranged at the joints to prevent the welding joints from being polluted.
Further, the first sensor 104 is a micro-electromechanical system (MEMS) based flow rate-temperature sensing chip.
Further, the second sensor is 105 a micro-electro-mechanical system (MEMS) based pressure sensing chip.
In this embodiment, the first sensor 104 and the second sensor 105 are both MEMS (Micro-Electro-Mechanical System) chips, and compared with sensors of sensors, the MEMS sensors have low power consumption and small size, and can be installed in a pipeline with low power consumption and compact structure.
Further, the housing 102 is cylindrical, the base 101 is rectangular, and the long side of the base 101 is placed in the axial direction of the housing 102;
the substrate 101 is fixedly connected to a first side cylindrical end portion 1021 of the housing 102, and the first side cylindrical end portion 1021 is a closed structure.
In this embodiment, as shown in fig. 4, one end of the substrate 101 is fixedly connected to the first side cylindrical end 1021 of the housing 102, on one hand, a snap structure can be disposed on the cylindrical end to connect the substrate 101 with the housing 102, and on the other hand, a sealant can be disposed on the cylindrical end to adhesively fix the substrate 101 and the cylindrical end, so as to prevent the substrate 101 from moving.
Further, the other end portion of the substrate 101 is further provided with a signal transmission line 109 extending to the outside of the second side cylindrical end portion 1022 of the housing 102, and a sealing body for sealing the cavity is provided inside the second side cylindrical end portion 1022 of the housing 102.
In the present embodiment, the second side cylindrical end part 1022 is an open structure, and the signal transmission line 109 can transmit the electrical signals of the first sensor 104, the second sensor 105 and the signal processing circuit structure 108 to the outside. To further seal the cavity from air leakage, a sealing body 110 is disposed within the second side cylindrical end 1022 of the housing 102, and the sealing body 110 may be a sealant.
Further, the signal processing circuit configuration 108 includes a wireless transmission unit for transmitting the processed signal to the outside.
In this embodiment, the signal processing circuit structure 108 includes a wireless transmission unit, and the sensor signal after being processed is transmitted to the monitoring service center through wireless transmission unit, so as to realize real-time monitoring of the operation condition, pipeline dredging and smoke discharging condition of the fan system, and to find out the abnormal air supply condition and fire safety hidden trouble problem and take quick modification measures.
In the present disclosure, the substrate may be a PCB board and the housing 102 may include material(s) (such as rubber, plastic, ceramic, and/or fiberglass). In some embodiments, the housing 102 may include other suitable materials or combinations of materials without departing from the scope of the present disclosure.
As shown in fig. 5, the present invention further provides a pipeline monitoring system 1000, which includes the sensor device 100 and the control device 200, the sensor device 100 is installed in the pipeline 300, the control device 200 wirelessly communicates with the wireless transmission unit in the sensor device 100 to receive and process the monitoring signal transmitted by the sensor device 100 and realize the remote monitoring of the pipeline 300, so as to realize the intelligent monitoring of the pipeline.
Further, the system 1000 further comprises an early warning device 400, and when the gas pressure and the gas flow rate in the pipeline 300 monitored by the first sensor 104 and the second sensor 105 exceed preset threshold values, the control device 200 triggers the early warning device 400 to execute corresponding early warning actions, so that a worker can find out an abnormal condition in time, and timely processing is facilitated.
The utility model discloses in, first sensor can simultaneous measurement velocity of flow and temperature, consequently, pipeline 300 among the pipeline monitoring system can need measure velocity of flow parameter and pressure parameter's air pipe, also can be for needs measure velocity of flow parameter, temperature parameter to and pressure parameter's exhaust pipe, certainly still can be for other needs to the gas pressure in it, the pipeline of temperature and velocity of flow monitoring, the example is not one by one here.
The system 1000 is provided with an early warning device 400, for example, for a smoke exhaust pipeline, smoke in the smoke exhaust pipeline can be monitored in real time by remotely monitoring gas flow rate, temperature and pressure, whether the temperature and the pipeline pressure are higher than corresponding threshold values or not is automatically alarmed, if the flow rate measured by a first sensor is low, which may be due to pipeline blockage or gas concentration being high, then if the measured temperature is high, a fire may occur, and for a ventilation pipeline, by remotely monitoring the flow rate and the pipeline pressure, working condition information such as pipeline blockage, pipeline breakage, fan abnormality and the like is monitored in real time, for example, if the wind speed measured by the first sensor 104 is low, the gas pressure measured by a second sensor is high, which may be that the pipeline is blocked, if the flow rate measured by the first sensor is low, the temperature has no obvious abnormality, then the pressure measured by the second pressure sensor is combined, if the pressure is low, then a possible condition is a fan anomaly.
Further, in the case where the gas flow rate is less than the preset flow rate threshold, the control device 200 adjusts the operation mode of the sensor device 100 to the low power consumption mode.
Under the general condition, the electrical design of old-fashioned large building is not perfect, and some occasions newly-increased wisdom fire extinguishing system need use the battery power supply, therefore need consider the low-power consumption mode. By adopting the scheme of low power consumption, the problem of service life of battery power supply can be solved. The first sensor 104 tests the wind speed of the ventilation and smoke exhaust pipeline, collects wind speed signals at a certain sampling frequency, automatically switches the working mode to the low power consumption mode if the wind speed is lower than the minimum critical value required by the ventilation and smoke exhaust pipeline, and otherwise, switches the working mode to the normal working mode.
Furthermore, the pipeline is a smoke exhaust pipeline, the first sensor 104 is a flow velocity-temperature sensing chip based on a Micro Electro Mechanical System (MEMS), the system comprises a smoke exhaust fire valve arranged in the smoke exhaust pipeline, and the control device (200) automatically closes the smoke exhaust fire valve to play a role in fire resistance and smoke isolation when the gas temperature measured by the first sensor 104 exceeds a preset temperature threshold.
It is to be understood that the various numerical references referred to in the embodiments of the invention are merely for convenience of description and distinction and are not intended to limit the scope of the embodiments of the invention. The sequence numbers of the above-mentioned processes do not mean the execution sequence, and the execution sequence of the processes should be determined by their functions and inherent logic.
The sensor device and the ventilation duct monitoring system provided by the embodiment of the present invention are described above in detail, and a specific example is applied herein to explain the principle and the implementation of the present invention, and the description of the above embodiment 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 specific implementation and application scope, to sum up, the content of the present specification should not be understood as the limitation of the present invention.
Claims (14)
1. A sensor device (100), characterized in that the sensor device (100) comprises a substrate (101) and a housing (102), the substrate (101) having opposite first and second sides and being located within a cavity of the housing (102), the housing (102) having a gas flow channel (103) through which a gas can flow;
wherein a first sensor (104) is arranged on the first side of the substrate (101), the first sensor (104) being operable to sense a flow rate of gas flowing within the gas flow channel (103), and a second sensor (105) is arranged on the second side of the substrate (101), the second sensor (105) being operable to sense a pressure of gas flowing within the gas flow channel (103).
2. The device according to claim 1, wherein a first air hole (106) for air inflow and a second air hole (107) for air outflow are formed in the housing (102), and the first air hole (106), the second air hole (107) and the air flow channel (103) form an air transmission path.
3. The device according to claim 1, characterized in that a recess is provided on the first side of the substrate (101), the first sensor (104) is located in the recess, and a sensing surface of the first sensor (104) is flush with a surface of the first side of the substrate (101).
4. A device according to claim 3, characterized in that the substrate (101) is provided with signal processing circuitry (108), the signal processing circuitry (108) being adapted to perform a predetermined processing of the signals sensed by the first sensor (104) and the second sensor (105);
wherein the signal processing circuit arrangement (108) is electrically connected to the first sensor (104) by a first electrically conductive path and to the second sensor (105) by a second electrically conductive path.
5. The apparatus according to claim 4, wherein the first sensor (104), the second sensor (105) and the signal processing circuit structure (108) are connected to substrate pads by corresponding pads, respectively, and a sealant is provided at the connections.
6. The device according to any one of claims 1 to 5, wherein the first sensor (104) is a micro-electro-mechanical systems (MEMS) based flow rate-temperature sensing chip.
7. The device according to any of claims 1 to 5, wherein the second sensor (105) is a micro-electro-mechanical systems (MEMS) based pressure sensing chip.
8. The device according to claim 1, characterized in that the housing (102) is cylindrical, the base (101) is rectangular, and the long side of the base (101) is placed in the axial direction of the housing (102);
the substrate (101) is fixedly connected with a first side cylindrical end portion (1021) of the shell (102), and the first side cylindrical end portion (1021) is of a closed structure.
9. The device of claim 8, wherein the base (101) is provided with a signal transmission line (109) extending outwardly of a second side cylindrical end portion (1022) of the housing (102), and wherein a sealing body (110) is provided within the second side cylindrical end portion (1022) of the housing (102) for sealing the cavity.
10. The apparatus according to claim 5, characterized in that the signal processing circuit arrangement (108) comprises a wireless transmission unit for transmitting the processed signal to the outside.
11. A pipeline monitoring system (1000), the system comprising a sensor device (100) according to any one of claims 1 to 10 and a control device (200), the sensor device (100) being installed in a pipeline (300), the control device (200) being in wireless communication with a wireless transmission unit in the sensor device (100) to receive and process monitoring signals transmitted by the sensor device (100) and enable remote monitoring of the pipeline (300).
12. The system according to claim 11, characterized in that it comprises a pre-warning device (400) and in the event of the gas pressure and the gas flow rate inside the duct (300) monitored by the first sensor (104) and by the second sensor (105) exceeding preset threshold values, the control device (200) triggers the pre-warning device (400) to perform a corresponding pre-warning action.
13. The system according to claim 11 or 12, characterized in that said control means (200) adjust the operating mode of said sensor means (100) to a low power consumption mode in case said gas flow rate is less than a preset flow rate threshold.
14. The system according to claim 13, wherein the duct is a smoke exhaust duct, the first sensor (104) is a micro-electro-mechanical systems (MEMS) based flow-temperature sensing chip, the system comprises a smoke exhaust fire valve disposed within the smoke exhaust duct, and the control device (200) automatically closes the smoke exhaust fire valve in case the gas temperature measured by the first sensor (104) exceeds a preset temperature threshold.
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| Application Number | Priority Date | Filing Date | Title |
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| CN202221136971.5U CN217424439U (en) | 2022-05-11 | 2022-05-11 | Sensor device and pipeline monitoring system |
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| Application Number | Priority Date | Filing Date | Title |
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| CN202221136971.5U CN217424439U (en) | 2022-05-11 | 2022-05-11 | Sensor device and pipeline monitoring system |
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| CN217424439U true CN217424439U (en) | 2022-09-13 |
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| CN202221136971.5U Active CN217424439U (en) | 2022-05-11 | 2022-05-11 | Sensor device and pipeline monitoring system |
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