Air pressure gauge checking system

Abstract

The barometer verification system comprises a three-way valve, the first end of the three-way valve is connected with the detection end of a barometer, the second end of the three-way valve is connected with the detection end of an air system, the first end and the second end of the three-way valve are communicated, or the first end and the third end of the three-way valve are communicated; the air supply end of the air supply device is connected with the third end of the three-way valve; the detection module is used for collecting the detection pressure of the barometer; and the verification module is used for controlling the first end and the third end of the three-way valve to be conducted, controlling the air supply device to provide the pressure gas to the third end of the three-way valve at the preset pressure, and verifying the barometer according to the comparison of the preset pressure and the detection pressure. According to the barometer verification system disclosed by the invention, the verification cost of the barometer is effectively reduced, the verification efficiency of the barometer is improved, and meanwhile, the verification quality of the barometer is also improved.

Description

Technical Field

[0001] The present disclosure relates to the technical field of barometer calibration, and in particular to a barometer calibration system. Background Art

[0002] In hydropower plant gas systems, barometers are crucial for measuring and monitoring pressure. However, traditional pressure gauge calibration requires removing the gauge from the system and transporting it to a calibration room. This not only impacts the normal operation of the gas system but is also time-consuming and labor-intensive, resulting in high pressure gauge calibration costs. Furthermore, the process of removing and transporting the gauge poses risks of damage and set value drift. Summary of the Invention

[0003] The present disclosure aims to solve one of the technical problems in the related art at least to a certain extent.

[0004] To this end, an object of the present disclosure is to provide a barometer calibration system.

[0005] To achieve the above-mentioned objectives, the present disclosure provides a pressure gauge calibration system, comprising: a three-way valve, a first end of the three-way valve being connected to a detection end of the pressure gauge, and a second end of the three-way valve being connected to a detection end of a gas system, wherein the first end and the second end of the three-way valve are connected, or the first end and the third end of the three-way valve are connected; an air supply device, the air supply end of the air supply device being connected to the third end of the three-way valve; a detection module, the detection module being used to collect the detection pressure of the pressure gauge; a calibration module, the calibration module being used to control the first end and the third end of the three-way valve to be connected, and to control the air supply device to provide pressurized gas to the third end of the three-way valve at a preset pressure, and to calibrate the pressure gauge based on a comparison between the preset pressure and the detection pressure.

[0006] Optionally, the air supply device includes: an air pump, the air outlet end of the air pump is connected to the third end of the three-way valve, and the signal input end of the air pump is connected to the signal output end of the verification module; a pressure regulating component, the pressure regulating component is arranged between the air outlet end of the air pump and the third end of the three-way valve, and the signal input end of the pressure regulating component is connected to the signal output end of the verification module, and the verification module is used to control the pressure regulating component so that the third end of the three-way valve reaches the preset pressure.

[0007] Optionally, the pressure regulating assembly includes: multiple regulating passages, the regulating passages are arranged between the air outlet end of the air pump and the third end of the three-way valve, and the regulating passages include: a pressure regulating valve and a switch valve, the signal input end of the pressure regulating valve and the signal input end of the switch valve are respectively connected to the signal output end of the verification module, and the pressure regulating ranges of the multiple pressure regulating valves increase successively; the verification module is used to control the switch valves in each of the regulating passages and the pressure regulating valves in the corresponding regulating passages according to the preset pressure, so that the third end of the three-way valve reaches the preset pressure.

[0008] Optionally, the barometer is a mechanical meter, and the detection module includes: an image acquisition unit, the acquisition end of the image acquisition unit and the display end of the barometer are arranged relative to each other, and the image acquisition unit is used to acquire the display image of the barometer and the tilt angle of the barometer; an image processing unit, the signal input end of the image processing unit is connected to the signal output end of the image acquisition unit, and the signal output end of the image processing unit is connected to the signal input end of the verification module, and the image processing unit is used to compensate the display image of the barometer according to the tilt angle of the barometer, and obtain the detection pressure of the barometer according to the compensated display image.

[0009] Optionally, the barometer is a digital meter, and the detection module includes: a data acquisition unit, the signal input end of the data acquisition unit is connected to the signal output end of the barometer, and the signal output end of the data acquisition unit is connected to the signal input end of the verification module, and the data acquisition unit is used to transmit the data of the barometer so that the verification module obtains the detection pressure of the barometer.

[0010] Optionally, the system also includes: a pressure detection unit, the detection end of the pressure detection unit is arranged between the air supply end of the air supply device and the third end of the three-way valve, and the pressure detection unit is used to detect the air supply pressure of the air supply device; wherein the signal input end of the verification module is connected to the signal output end of the pressure detection unit, and the verification module is used to control the air supply device according to the air supply pressure so that the third end of the three-way valve reaches the preset pressure.

[0011] Optionally, the system further includes: an alarm module, wherein the signal input end of the alarm module is connected to the signal output end of the verification module, and the verification module is used to control the alarm module to issue an alarm message when the difference between the preset pressure and the detection pressure exceeds a preset value.

[0012] Optionally, the system further includes: a wireless communication module, a first communication end of the wireless communication module is connected to the communication end of the verification module, and a second communication end of the wireless communication module is connected to the communication end of the remote monitoring center.

[0013] Optionally, the system further comprises: a quick connector, which is provided at the air supply end of the air supply device, and the quick connector is detachably connected to the third end of the three-way valve.

[0014] Optionally, the system further includes: a chassis, in which the air supply device and the calibration device are respectively arranged; a plurality of universal wheels, which are arranged at the bottom of the chassis and have a locking mechanism; and a telescopic pull rod, which is arranged on the chassis.

[0015] The technical solution provided by the present disclosure may have the following beneficial effects:

[0016] By utilizing the path switching of the three-way valve, the pressure gauge does not need to be disassembled while being calibrated, which not only ensures the normal use of the gas system, but also saves the time and manpower of disassembling the pressure gauge, effectively reduces the calibration cost of the pressure gauge, and improves the calibration efficiency of the pressure gauge. At the same time, it also avoids the risks of damage, set value drift, etc. during the disassembly and assembly of the pressure gauge and during the transportation process, thereby improving the calibration quality of the pressure gauge.

[0017] Additional aspects and advantages of the present disclosure will be given in part in the following description and in part will be obvious from the following description, or will be learned through practice of the present disclosure. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] The above and / or additional aspects and advantages of the present disclosure will become apparent and readily understood from the following description of the embodiments in conjunction with the accompanying drawings, in which:

[0019] Figure 1 It is a structural diagram of a barometer calibration system proposed in one embodiment of the present disclosure;

[0020] As shown in the figure: 1. Three-way valve;

[0021] 2. Air supply device, 21. Air pump, 22. Pressure regulating valve, 23. Switch valve;

[0022] 3. Detection module, 4. Calibration module, 5. Pressure detection unit, 6. Alarm module, 7. Wireless communication module, 8. Quick connector;

[0023] 100. Barometer, 200. Gas system. DETAILED DESCRIPTION

[0024] The following describes in detail embodiments of the present disclosure, examples of which are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are intended only to explain the present disclosure and are not to be construed as limiting the present disclosure. On the contrary, the embodiments of the present disclosure include all variations, modifications, and equivalents that fall within the spirit and scope of the appended claims.

[0025] like Figure 1 As shown, the embodiment of the present disclosure proposes a pressure gauge 100 calibration system, including: a three-way valve 1, an air supply device 2, a detection module 3 and a calibration module 4, the first end of the three-way valve 1 is connected to the detection end of the pressure gauge 100, and the second end of the three-way valve 1 is connected to the detection end of the gas system 200, wherein the first end and the second end of the three-way valve 1 are connected, or the first end and the third end of the three-way valve 1 are connected, the air supply end of the air supply device 2 is connected to the third end of the three-way valve 1, the detection module 3 is used to collect the detection pressure of the pressure gauge 100, the calibration module 4 is used to control the connection between the first end and the third end of the three-way valve 1, and control the air supply device 2 to provide pressurized gas to the third end of the three-way valve 1 at a preset pressure, and calibrate the pressure gauge 100 based on the comparison between the preset pressure and the detection pressure.

[0026] It can be understood that since the first end of the three-way valve 1 is connected to the detection end of the pressure gauge 100, and the second end of the three-way valve 1 is connected to the detection end of the gas system 200, when the first end and the second end of the three-way valve 1 are connected, the pressure gauge 100 can detect the gas pressure in the gas system 200, and since the gas supply end of the gas supply device 2 is connected to the third end of the three-way valve 1, when the first end and the third end of the three-way valve 1 are connected, the gas supply device 2 can provide pressurized gas to the pressure gauge 100. Therefore, the verification module 4 controls the first end and the third end of the three-way valve 1 to be connected, so that the passage between the pressure gauge 100 and the gas system 200 is disconnected, and the passage between the pressure gauge 100 and the gas supply device 2 is connected, and compares the set preset pressure with the detection pressure collected by the detection module 3, thereby realizing the calibration of the pressure gauge 100.

[0027] Among them, by utilizing the path switching of the three-way valve 1, the pressure gauge 100 does not need to be disassembled while being calibrated, which not only ensures the normal use of the gas system 200, but also saves the time and manpower of disassembling the pressure gauge 100, effectively reduces the calibration cost of the pressure gauge 100, and improves the calibration efficiency of the pressure gauge 100. At the same time, it also avoids the risks of damage, set value drift, etc. during the disassembly and assembly process of the pressure gauge 100 and the transportation process, thereby improving the calibration quality of the pressure gauge 100.

[0028] It should be noted that the three-way valve 1 is used to switch between the passage between the pressure gauge 100 and the gas system 200 and the passage between the pressure gauge 100 and the gas supply device 2. The specific type of the three-way valve 1 can be set according to actual needs and is not limited to this.

[0029] Among them, the three-way valve 1 has a first end, a second end and a third end, and the three-way valve 1 has at least two states. In the first state, the first end and the second end of the three-way valve 1 are connected, and the first end and the third end of the three-way valve 1 are disconnected, so as to realize the real-time air pressure detection of the gas system 200 by the pressure gauge 100; in the second state, the first end and the third end of the three-way valve 1 are connected, and the first end and the second end of the three-way valve 1 are disconnected, so as to realize the air supply device 2 to the pressure gauge 100.

[0030] The air supply device 2 is used to supply air to the barometer 100 so that the calibration module 4 compares the air supply pressure (preset pressure) with the detection pressure of the barometer 100 to realize the calibration of the barometer 100. The specific type of the air supply device 2 can be set according to actual needs and is not limited to this.

[0031] The detection module 3 is used to collect the detection pressure of the barometer 100 so that the verification module 4 can verify the barometer 100 by comparing the preset pressure and the detection pressure. The specific type of the detection module 3 can be set according to actual needs and is not limited to this.

[0032] The calibration module 4 is used to calibrate the barometer 100. Specifically, when the detected pressure is less than the preset pressure, it indicates that the detected value of the barometer 100 is too low. When the detected pressure is greater than the preset pressure, it indicates that the detected value of the barometer 100 is too high. The offset of the barometer 100 can also be obtained based on the difference between the detected pressure and the preset pressure, and the barometer 100 can be calibrated based on the offset. The specific type of calibration module 4 can be set according to actual needs and is not limited to this. For example, the calibration module 4 can be a controller, a processor, etc., and for digital meters, the calibration module 4 can directly calibrate the barometer 100. For mechanical meters, the calibration module 4 needs to cooperate with manual operation or a robotic arm to achieve calibration of the barometer 100.

[0033] like Figure 1 As shown, in some embodiments, the air supply device 2 includes: an air pump 21 and a pressure regulating component, the air outlet end of the air pump 21 is connected to the third end of the three-way valve 1, and the signal input end of the air pump 21 is connected to the signal output end of the verification module 4, the pressure regulating component is arranged between the air outlet end of the air pump 21 and the third end of the three-way valve 1, and the signal input end of the pressure regulating component is connected to the signal output end of the verification module 4, and the verification module 4 is used to control the pressure regulating component so that the third end of the three-way valve 1 reaches a preset pressure.

[0034] It can be understood that since the air outlet end of the air pump 21 is connected to the third end of the three-way valve 1, and the pressure regulating component is arranged between the air outlet end of the air pump 21 and the third end of the three-way valve 1, the air pump 21 can supply air to the third end of the three-way valve 1, and the pressure regulating component can be used to adjust the air pressure at the third end of the three-way valve 1. Moreover, since the signal input end of the air pump 21 is connected to the signal output end of the verification module 4, and the signal input end of the pressure regulating component is connected to the signal output end of the verification module 4, the verification module 4 can control the first end and the third end of the three-way valve 1 to be connected, and control the air pump 21 to supply air to the third end of the three-way valve 1, and control the pressure regulating component to adjust the air supply pressure of the air pump 21, so that the air pressure at the detection end of the pressure gauge 100 reaches the preset pressure, thereby ensuring the accurate calibration of the pressure gauge 100.

[0035] It should be noted that the air pump 21 is used to supply air to the third end of the three-way valve 1. The specific type of the air pump 21 can be set according to actual needs and is not limited to this.

[0036] The pressure regulating component is used to adjust the air supply pressure of the air pump 21 so that the air pressure at the detection end of the pressure gauge 100 reaches a preset pressure. The specific type of the pressure regulating component can be set according to actual needs and is not limited to this.

[0037] like Figure 1 As shown, in some embodiments, the pressure regulating component includes: multiple regulating passages, the regulating passages are arranged between the air outlet end of the air pump 21 and the third end of the three-way valve 1, and the regulating passages include: a pressure regulating valve 22 and a switch valve 23, the signal input end of the pressure regulating valve 22 and the signal input end of the switch valve 23 are respectively connected to the signal output end of the verification module 4, and the pressure regulating ranges of the multiple pressure regulating valves 22 increase sequentially. The verification module 4 is used to control the switch valve 23 in each regulating passage and the pressure regulating valve 22 in the corresponding regulating passage according to the preset pressure, so that the third end of the three-way valve 1 reaches the preset pressure.

[0038] It can be understood that since the pressure regulating valve 22 and the switch valve 23 are arranged between the air outlet end of the air pump 21 and the third end of the three-way valve 1, and the signal input end of the pressure regulating valve 22 and the signal input end of the switch valve 23 are respectively connected to the signal output end of the verification module 4, the verification module 4 can use the switch valve 23 and the pressure regulating valve 22 to control the on-off and air supply pressure of the regulating passage, and since the pressure regulating ranges of the multiple pressure regulating valves 22 increase successively, the verification module 4 can control the switch valves 23 in each regulating passage and the pressure regulating valves 22 in the corresponding regulating passage according to the preset pressure, thereby using the corresponding regulating passage to achieve the preset pressure of the third end of the three-way valve 1, thereby ensuring the accurate calibration of the pressure gauge 100.

[0039] Among them, the parallel gas path structure of multiple adjustment paths and multiple pressure regulating valves 22 with successively increasing pressure adjustment ranges are utilized, so that the pressure adjustment component has a very large pressure adjustment range, so that it can adapt to pressure gauges 100 with different ranges, thereby improving the calibration quality and adaptability of the calibration system.

[0040] It should be noted that the pressure regulating valve 22 is used to regulate the gas supply pressure of the regulating passage in which it is located. The specific type of the pressure regulating valve 22 can be set according to actual needs and is not limited to this.

[0041] The switch valve 23 is used to control the on-off of the regulating passage. The specific type of the switch valve 23 can be set according to actual needs and is not limited to this.

[0042] For multiple regulating passages, since they have different pressure regulating ranges, a suitable regulating passage is selected according to the preset pressure, and the switch valve 23 of the regulating passage is controlled to be turned on, and the pressure regulating valve 22 of the regulating passage is controlled to regulate the pressure, while the switch valves 23 of other regulating passages are controlled to be turned off.

[0043] In some embodiments, the barometer 100 is a mechanical meter, and the detection module 3 includes: an image acquisition unit and an image processing unit, the acquisition end of the image acquisition unit and the display end of the barometer 100 are arranged relative to each other, and the image acquisition unit is used to acquire the display image of the barometer 100 and the tilt angle of the barometer 100, the signal input end of the image processing unit is connected to the signal output end of the image acquisition unit, and the signal output end of the image processing unit is connected to the signal input end of the verification module 4, the image processing unit is used to compensate the display image of the barometer 100 according to the tilt angle of the barometer 100, and obtain the detection pressure of the barometer 100 according to the compensated display image.

[0044] It can be understood that since the acquisition end of the image acquisition unit and the display end of the barometer 100 are arranged relative to each other, the image acquisition unit can acquire the display image of the barometer 100 and the tilt angle of the barometer 100, and since the signal input end of the image processing unit is connected to the signal output end of the image acquisition unit, and the signal output end of the image processing unit is connected to the signal input end of the verification module 4, the image processing unit can compensate the display image of the barometer 100 according to the tilt angle of the barometer 100, and obtain the detection pressure of the barometer 100 according to the compensated display image, thereby ensuring the accurate acquisition of the detection pressure, and further ensuring the accurate verification of the barometer 100.

[0045] It should be noted that the image acquisition unit is used to capture the display image of the barometer 100 and the tilt angle of the barometer 100. The specific type of the image acquisition unit can be set according to actual needs and is not limited to this. For example, the image acquisition unit can use a camera to capture the display image of the barometer 100 (including pointer information, digital information, etc.), and use multiple distance sensors, inclination sensors, etc. to capture the tilt angle of the barometer 100.

[0046] The image processing unit is used to perform angle compensation for the image displayed by the barometer 100. The specific type of the image processing unit can be set according to actual needs and is not limited to this. For example, the image processing unit can use the tilt angle of the barometer 100 to correct the displayed image of the tilted barometer 100 based on the correction algorithm, so as to achieve accurate identification of the pointer reading within the angle range of 0°-180° between the acquisition end of the image acquisition unit and the display end of the barometer 100, reduce the recognition angle limit, automatically acquire images and quickly and accurately identify the indication of the pressure gauge under inspection, and reduce manual reading errors.

[0047] In some embodiments, the barometer 100 is a digital meter, and the detection module 3 includes: a data acquisition unit, the signal input end of the data acquisition unit is connected to the signal output end of the barometer 100, and the signal output end of the data acquisition unit is connected to the signal input end of the verification module 4, and the data acquisition unit is used to transmit data from the barometer 100 so that the verification module 4 obtains the detection pressure of the barometer 100.

[0048] It can be understood that since the signal input end of the data acquisition unit is connected to the signal output end of the barometer 100, and the signal output end of the data acquisition unit is connected to the signal input end of the verification module 4, the data acquisition unit can transmit the data of the barometer 100, so that the verification module 4 can accurately obtain the detection pressure of the barometer 100.

[0049] It should be noted that the data acquisition unit is used to transmit the data of the barometer 100 , and the specific type of the data acquisition unit can be set according to actual needs and is not limited thereto.

[0050] like Figure 1 As shown, in some embodiments, the system further includes: a pressure detection unit 5, wherein a detection end of the pressure detection unit 5 is disposed between the gas supply end of the gas supply device 2 and the third end of the three-way valve 1, and the pressure detection unit 5 is configured to detect the gas supply pressure of the gas supply device 2. The signal input end of the verification module 4 is connected to the signal output end of the pressure detection unit 5, and the verification module 4 is configured to control the gas supply device 2 according to the gas supply pressure so that the third end of the three-way valve 1 reaches a preset pressure.

[0051] It can be understood that since the detection end of the pressure detection unit 5 is arranged between the air supply end of the air supply device 2 and the third end of the three-way valve 1, and the signal input end of the verification module 4 is connected to the signal output end of the pressure detection unit 5, the pressure detection unit 5 can detect the air supply pressure of the air supply device 2 and send the detection signal to the verification module 4, so that the verification module 4 can control the air supply device 2 according to the air supply pressure, and thereby make the third end of the three-way valve 1 reach the preset pressure.

[0052] It should be noted that the pressure detection unit 5 is used to verify the closed-loop control of the air supply device 2 by the verification module 4. The pressure detection unit 5 serves as a standard meter to enable the barometer 100 to be accurately calibrated. The specific type of the pressure detection unit 5 can be set according to actual needs and is not limited to this. For example, the pressure detection unit 5 can be a pressure sensor.

[0053] like Figure 1 As shown, in some embodiments, the system also includes: an alarm module 6, the signal input end of the alarm module 6 is connected to the signal output end of the verification module 4, and the verification module 4 is used to control the alarm module 6 to issue an alarm message when the difference between the preset pressure and the detection pressure exceeds the preset value.

[0054] It can be understood that since the signal input end of the alarm module 6 is connected to the signal output end of the verification module 4, when the difference between the preset pressure and the detection pressure exceeds the preset value, the verification module 4 can control the alarm module 6 to issue an alarm message, thereby promptly prompting the operator to ensure efficient calibration of the barometer 100.

[0055] It should be noted that the alarm module 6 is used to issue an alarm message. The specific type of the alarm module 6 can be set according to actual needs and is not limited to this. For example, the alarm module 6 can be an audible and visual alarm.

[0056] like Figure 1 As shown, in some embodiments, the system further includes: a wireless communication module 7, a first communication end of the wireless communication module 7 is connected to the communication end of the verification module 4, and a second communication end of the wireless communication module 7 is connected to the communication end of the remote monitoring center.

[0057] It can be understood that since the first communication end of the wireless communication module 7 is connected to the communication end of the verification module 4, and the second communication end of the wireless communication module 7 is connected to the communication end of the remote monitoring center, the verification module 4 and the remote monitoring center can use the wireless communication module 7 to achieve wireless communication, thereby meeting the remote monitoring of the verification data and the remote verification of the barometer 100.

[0058] It should be noted that the wireless communication module 7 is used for wireless communication between the verification module 4 and the remote monitoring center. The specific type of the wireless communication module 7 can be set according to actual needs and is not limited to this.

[0059] like Figure 1 As shown, in some embodiments, the system further includes: a quick connector 8, which is provided at the air supply end of the air supply device 2, and the quick connector 8 is detachably connected to the third end of the three-way valve 1.

[0060] It can be understood that since the quick connector 8 is arranged at the air supply end of the air supply device 2, and the quick connector 8 and the third end of the three-way valve 1 are detachably connected, the air supply end of the air supply device 2 and the third end of the three-way valve 1 can be quickly disassembled and assembled, thereby effectively improving the calibration efficiency and reducing the impact on the sealing of the pressure gauge 100.

[0061] It should be noted that the quick connector 8 is used for quick assembly and disassembly between the air supply end of the air supply device 2 and the third end of the three-way valve 1. The specific type of the quick connector 8 can be set according to actual needs and is not limited to this.

[0062] In some embodiments, the system further includes: a chassis, multiple universal wheels and a telescopic rod, the air supply device 2 and the calibration device are respectively arranged in the chassis, the universal wheels are arranged at the bottom of the chassis, and the universal wheels have a locking mechanism, and the telescopic rod is arranged on the chassis.

[0063] It can be understood that since the air supply device 2 and the verification device are respectively arranged in the chassis, the chassis can realize integrated protection of the air supply device 2 and the verification device. At the same time, since the universal wheel is arranged at the bottom of the chassis, and the universal wheel has a locking mechanism, and the telescopic rod is arranged on the chassis, the chassis can be easily transported by utilizing the cooperation of the universal wheel and the telescopic rod, and is more flexible and convenient to use.

[0064] It should be noted that the chassis is used for the integrated loading of the air supply device 2, the calibration device, etc. The specific type of the chassis can be set according to actual needs and is not limited to this. For example, the chassis can be a box structure, and the chassis is equipped with heat dissipation components, buffer components, etc.

[0065] The universal wheels are used for the movement of the chassis and for positioning using a locking mechanism. The specific type of the universal wheels can be set according to actual needs and is not limited thereto.

[0066] The telescopic pull rod is used to drag and move the chassis. The telescopic pull rod has a telescopic function, which is convenient for use and storage. The specific type of the telescopic pull rod can be set according to actual needs and there is no restriction on this.

[0067] It should be noted that, in the description of this disclosure, the terms "first", "second", etc. are used for descriptive purposes only and should not be understood as indicating or implying relative importance. In addition, in the description of this disclosure, unless otherwise specified, the meaning of "plurality" is two or more.

[0068] Any process or method description in a flowchart or otherwise described herein may be understood to represent a module, segment or portion of code that includes one or more executable instructions for implementing the steps of a specific logical function or process, and the scope of the preferred embodiments of the present disclosure includes additional implementations in which functions may be performed out of the order shown or discussed, including performing functions in a substantially simultaneous manner or in the reverse order depending on the functions involved, which should be understood by those skilled in the art to which the embodiments of the present disclosure belong.

[0069] Throughout this specification, reference to terms such as "one embodiment," "some embodiments," "examples," "specific examples," or "some examples" means that a specific feature, structure, material, or characteristic described in conjunction with that embodiment or example is included in at least one embodiment or example of the present disclosure. In this specification, schematic representations of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.

[0070] Although the embodiments of the present disclosure have been shown and described above, it is understood that the above embodiments are illustrative and are not to be construed as limitations on the present disclosure. A person skilled in the art may change, modify, replace and vary the above embodiments within the scope of the present disclosure.

Claims

1. A barometer calibration system, characterized in that: include: A three-way valve, wherein a first end of the three-way valve is connected to a detection end of the pressure gauge, and a second end of the three-way valve is connected to a detection end of the gas system, wherein the first end and the second end of the three-way valve are in conduction, or the first end and the third end of the three-way valve are in conduction; An air supply device, wherein the air supply end of the air supply device is connected to the third end of the three-way valve; A detection module, the detection module is used to collect the detection pressure of the barometer; A verification module is used to control the conduction between the first end and the third end of the three-way valve, and to control the gas supply device to provide pressurized gas to the third end of the three-way valve at a preset pressure, and to verify the pressure gauge based on the comparison between the preset pressure and the detection pressure.

2. The barometer calibration system according to claim 1, characterized in that: The air supply device comprises: An air pump, wherein the air outlet of the air pump is connected to the third end of the three-way valve, and the signal input end of the air pump is connected to the signal output end of the verification module; A pressure regulating assembly is arranged between the air outlet end of the air pump and the third end of the three-way valve, and the signal input end of the pressure regulating assembly is connected to the signal output end of the verification module. The verification module is used to control the pressure regulating assembly so that the third end of the three-way valve reaches the preset pressure.

3. The barometer calibration system according to claim 2, characterized in that: The pressure regulating assembly comprises: a plurality of regulating passages, the regulating passages being arranged between the air outlet of the air pump and the third end of the three-way valve, and the regulating passages comprising: a pressure regulating valve and a switch valve, the signal input end of the pressure regulating valve and the signal input end of the switch valve being respectively connected to the signal output end of the verification module, and the pressure regulating ranges of the plurality of pressure regulating valves being successively increased; The verification module is used to control the switch valve in each of the regulating passages and the pressure regulating valve in the corresponding regulating passage according to a preset pressure, so that the third end of the three-way valve reaches the preset pressure.

4. The barometer calibration system according to claim 1, characterized in that: The barometer is a mechanical gauge, and the detection module includes: An image acquisition unit, wherein an acquisition end of the image acquisition unit and a display end of the barometer are arranged opposite to each other, and the image acquisition unit is used to acquire a display image of the barometer and an inclination angle of the barometer; An image processing unit, wherein the signal input end of the image processing unit is connected to the signal output end of the image acquisition unit, and the signal output end of the image processing unit is connected to the signal input end of the verification module, and the image processing unit is used to compensate the display image of the barometer according to the tilt angle of the barometer, and obtain the detection pressure of the barometer according to the compensated display image.

5. The barometer calibration system according to claim 1, characterized in that: The barometer is a digital gauge, and the detection module includes: A data acquisition unit, wherein the signal input end of the data acquisition unit is connected to the signal output end of the barometer, and the signal output end of the data acquisition unit is connected to the signal input end of the verification module, and the data acquisition unit is used to transmit the data of the barometer so that the verification module obtains the detection pressure of the barometer.

6. The barometer calibration system according to claim 1, characterized in that: The system further comprises: a pressure detection unit, wherein a detection end of the pressure detection unit is arranged between the gas supply end of the gas supply device and the third end of the three-way valve, and the pressure detection unit is used to detect the gas supply pressure of the gas supply device; The signal input end of the verification module is connected to the signal output end of the pressure detection unit, and the verification module is used to control the gas supply device according to the gas supply pressure so that the third end of the three-way valve reaches the preset pressure.

7. The barometer calibration system according to claim 1, characterized in that: The system further comprises: An alarm module, wherein the signal input end of the alarm module is connected to the signal output end of the verification module, and the verification module is used to control the alarm module to issue an alarm message when the difference between the preset pressure and the detection pressure exceeds a preset value.

8. The barometer calibration system according to claim 1, characterized in that: The system further comprises: A wireless communication module, wherein a first communication end of the wireless communication module is connected to a communication end of the verification module, and a second communication end of the wireless communication module is connected to a communication end of a remote monitoring center.

9. The barometer calibration system according to claim 1, characterized in that: The system further comprises: A quick connector is provided at the air supply end of the air supply device, and the quick connector is detachably connected to the third end of the three-way valve.

10. The barometer calibration system according to claim 1, characterized in that: The system further comprises: a chassis, wherein the air supply device and the calibration device are respectively arranged in the chassis; A plurality of universal wheels, each of which is arranged at the bottom of the chassis and has a locking mechanism; A telescopic pull rod is arranged on the chassis.

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