Portable full-automatic barometer linear test device, method, equipment and medium

Abstract

The invention relates to a portable full-automatic barometer linear test device which comprises a shell, a high-pressure air pump arranged in the shell and a fine-tuning air cylinder connected with the high-pressure air pump, the high-pressure air pump is electrically connected with an electric control board, the electric control board is electrically connected with a portable computer, lead screws are arranged on the two sides of the fine-tuning air cylinder, and the fine-tuning air cylinder is electrically connected with the portable computer. A screw nut and a transmission gear are arranged at the two ends of the screw rod, the transmission gear is coupled with a stepping motor arranged on one side of the fine adjustment air cylinder, the stepping motor is electrically connected with the electric control board, and a piston coupled with the screw nut is arranged in the fine adjustment air cylinder. The portable computer sends a preset air pressure instruction to the electric control board so as to control the high-pressure air pump to convey air pressure to the fine adjustment air cylinder, and the electric control board controls the stepping motor to rotate to drive the lead screw to rotate, so that the nut displaces to drive the piston to conduct fine adjustment on the air pressure in the fine adjustment air cylinder. And the portability and the automation degree of the device can be improved.

Description

Technical Field

[0001] The present disclosure relates to the technical field of barometer linearity testing, and in particular to a portable fully automatic barometer linearity testing device, method, equipment and medium. Background Art

[0002] With the development of modern industry, barometer linear test occupies an important position in the fields of locomotive maintenance, etc. At the same time, the requirements for the accuracy, portability and automation of barometer linear test are also increasing.

[0003] However, the existing barometer linear test device is large in size, poor in portability, requires manual operation, has a low degree of automation, low efficiency and low accuracy. Summary of the invention

[0004] The present invention discloses a portable fully automatic barometer linearity test device, method, equipment and medium to improve the portability, automation and accuracy of the barometer linearity test device.

[0005] In a first aspect, the present disclosure provides a portable fully automatic barometer linear test device, comprising a housing, a high-pressure air pump disposed in the housing, and a fine-tuning cylinder connected to the high-pressure air pump, characterized in that:

[0006] The high-pressure air pump is electrically connected to an electric control board disposed in the housing, and the electric control board is electrically connected to a portable computer disposed in the housing;

[0007] Screw rods are symmetrically arranged on both sides of the fine-tuning cylinder, a nut is arranged at one end of the screw rod, and a transmission gear is arranged at the other end, the transmission gear is coupled with a stepper motor arranged on one side of the fine-tuning cylinder, and the stepper motor is electrically connected to the electric control board;

[0008] The fine-tuning cylinder is provided with a piston coupled with the nut;

[0009] The portable computer sends a preset air pressure instruction to the electronic control board, and the electronic control board controls the high-pressure air pump to deliver air pressure to the fine-tuning cylinder according to the air pressure instruction. The electronic control board controls the rotation of the stepper motor to drive the screw rod to rotate, causing the nut to move, and then drives the piston to fine-tune the air pressure in the fine-tuning cylinder.

[0010] In some embodiments, a pressure sensor connected to the electric control board is disposed in the fine-tuning cylinder, which can improve the accuracy of air pressure adjustment.

[0011] In some embodiments, the portable computer is connected to an external camera and recording device to ensure the authenticity of the experimental process.

[0012] In some embodiments, there are two screw rods, which are symmetrically arranged about the fine-tuning cylinder, so that the piston can be evenly stressed and the stability when adjusting the air pressure is improved.

[0013] In some embodiments, the housing is designed as a portable plastic waterproof box and is integrally formed by injection molding of high-impact engineering plastics, thereby improving the waterproofness and durability of the device.

[0014] In some embodiments, the pressure sensor uses a pressure sensitive element with a digital I2C output and a measuring range of 2.5 MPa. The digital processing part uses a pressure sensitive element with a dual-channel 24-bit ADC, so that the product performance is stable and reliable.

[0015] In a second aspect, the present disclosure provides a control method for a portable fully automatic barometer linear test device, the method comprising:

[0016] Using the portable computer to turn on the camera and the recording device;

[0017] Using the portable computer to send a preset air pressure value to the electric control board, using the electric control board to start the high-pressure air pump, and using the pressure sensor to detect the current air pressure in the fine-tuning cylinder in real time;

[0018] When the current air pressure reaches the preset air pressure value, the high-pressure air pump is turned off by the electric control panel;

[0019] Utilizing the electric control board to calculate the number of steps of the stepping motor according to the difference between the current air pressure and the preset target air pressure, utilizing the electric control board to drive the stepping motor to rotate according to the number of steps, and utilizing the pressure sensor to monitor the fine-tuning air pressure in the fine-tuning cylinder;

[0020] When the fine-tuned air pressure reaches the target air pressure, the control panel is used to turn off the stepper motor, the portable computer is used to turn off the camera and the recording device, and the recorded video and audio are stored locally and uploaded to the office system.

[0021] In some embodiments, the method further comprises: turning off the camera and the recording device by using the portable computer, storing the recorded video and audio locally and uploading them to the office system; and then:

[0022] Using the electric control board to obtain the air pressure reading change data of the pressure sensor;

[0023] sending the air pressure reading change data to the portable computer according to the electric control board;

[0024] The portable computer generates a test curve according to the air pressure reading change data, and uploads the test curve to the office system.

[0025] In a third aspect, the present disclosure provides a computer device, including a memory, a processor, and a computer program stored in the memory, wherein the processor executes the computer program to implement the steps of the method described in the above aspects.

[0026] In a fourth aspect, the present disclosure provides a computer-readable storage medium having a computer program stored thereon, which implements the steps of the method described in the above aspects when executed by a processor.

[0027] The present invention provides a portable fully automatic barometer linearity test device, method, equipment and medium, which improve the portability, automation and accuracy of the barometer linearity test device. BRIEF DESCRIPTION OF THE DRAWINGS

[0028] The present disclosure will be described in more detail below based on embodiments and with reference to the accompanying drawings:

[0029] Figure 1 A schematic diagram of the structure of a portable fully automatic barometer linear test device provided in an embodiment of the present disclosure;

[0030] Figure 2 A schematic diagram of the structure of a portable fully automatic barometer linear test device with a pressure sensor provided in an embodiment of the present disclosure;

[0031] Figure 3 A schematic diagram of the structure of a portable fully automatic barometer linear test device with a camera and a recording device provided in an embodiment of the present disclosure;

[0032] Figure 4 A flow chart of a control method of a portable fully automatic barometer linear test device with a pressure sensor provided in an embodiment of the present disclosure;

[0033] Figure 5 A schematic structural diagram of a portable fully automatic barometer linear test device corresponding to claim 1 provided in an embodiment of the present disclosure.

[0034] Reference numerals:

[0035] 1. Shell;

[0036] 2. Portable computer;

[0037] 3. Control panel;

[0038] 4. High-pressure air pump;

[0039] 5. Fine-tune the cylinder;

[0040] 6. Screw rod;

[0041] 7. Silk mother;

[0042] 8. Piston;

[0043] 9. Stepper motor;

[0044] 10. Transmission gear;

[0045] 11. Pressure sensor;

[0046] 12. Camera;

[0047] 13. Recording equipment.

[0048] In the drawings, the same reference numerals are used for the same components, and the drawings are not drawn to scale. DETAILED DESCRIPTION

[0049] In order to enable those skilled in the art to better understand the technical solution of the present disclosure, and to fully understand and implement how the present disclosure applies technical means to solve technical problems and achieve the corresponding technical effects, the technical solution in the embodiments of the present disclosure will be clearly and completely described below in conjunction with the drawings in the embodiments of the present disclosure. Obviously, the described embodiments are only embodiments of a part of the present disclosure, not all of the embodiments. The embodiments of the present disclosure and the various features in the embodiments can be combined with each other without conflict, and the technical solutions formed are all within the scope of protection of the present disclosure. Based on the embodiments in the present disclosure, all other embodiments obtained by ordinary technicians in this field without making creative work should fall within the scope of protection of the present disclosure.

[0050] It should be noted that the terms "first", "second", etc. in the specification and claims of the present disclosure and the above-mentioned drawings are used to distinguish similar objects, and are not necessarily used to describe a specific order or sequence. It should be understood that the data used in this way can be interchangeable where appropriate, so that the embodiments of the present disclosure described herein can be implemented in an order other than those illustrated or described herein. In addition, the terms "including" and "having" and any variations thereof are intended to cover non-exclusive inclusions, for example, a process, method, system, product, or device that includes a series of steps or units is not necessarily limited to those steps or units that are clearly listed, but may include other steps or units that are not clearly listed or inherent to these processes, methods, products, or devices.

[0051] It should be noted that the steps shown in the flowcharts of the accompanying drawings can be executed in a computer system such as a set of computer executable instructions, and that, although a logical order is shown in the flowcharts, in some cases, the steps shown or described can be executed in an order different from that shown here.

[0052] Based on the problems existing in the related art, the present application embodiment provides a portable fully automatic barometer linear test device,

[0053] Embodiment 1

[0054] Figure 1 The present invention provides a portable fully automatic barometer linear test device. Figure 1 As shown, a portable fully automatic barometer linear test device comprises a housing 1, a high-pressure air pump 4 arranged in the housing 1, and a fine-tuning cylinder 5 connected to the high-pressure air pump, characterized in that:

[0055] The high-pressure air pump 4 is electrically connected to an electric control board 3 disposed in the housing 1, and the electric control board is electrically connected to a portable computer 2 disposed in the housing;

[0056] The fine-tuning cylinder 5 is symmetrically provided with screw rods 6 on both sides, one end of the screw rod 6 is provided with a screw nut 7, and the other end is provided with a transmission gear 10, the transmission gear is coupled with a stepper motor 9 provided on one side of the fine-tuning cylinder 5, and the stepper motor 9 is electrically connected to the electric control board 3;

[0057] The fine-tuning cylinder 5 is provided with a piston 8 coupled with the nut;

[0058] The portable computer 2 sends a preset air pressure instruction to the electric control board 3, and the electric control board 3 controls the high-pressure air pump 4 to deliver air pressure to the fine-tuning cylinder 5 according to the air pressure instruction. The electric control board 3 controls the stepping motor 9 to rotate to drive the screw rod 6 to rotate so that the nut 7 is displaced, thereby driving the piston 8 to fine-tune the air pressure in the fine-tuning cylinder 5.

[0059] In detail, there are two screw rods 6, which are symmetrically arranged with respect to the fine-tuning cylinder 5, so that the piston can be evenly stressed and the stability when adjusting the air pressure is improved.

[0060] In detail, the housing 1 adopts a portable plastic waterproof box integrated design, and is integrally molded by high impact-resistant engineering plastic injection molding, thereby improving the waterproofness and durability of the device.

[0061] In detail, the materials used in the portable fully automatic barometer linear test device are all lightweight materials such as aluminum and rate, which can reduce the weight of the device and improve portability.

[0062] In detail, the portable fully automatic barometer linear test device is powered by a built-in lithium battery, which can improve the portability of the device.

[0063] In detail, the high-pressure air pump 4 is connected to the fine-tuning cylinder 5 via a high-pressure air pipe, which can ensure the stability of the connection.

[0064] In detail, the portable computer 2 sends a preset air pressure instruction to the electric control board 3 via the RS232 interface. The RS232 interface is a standard serial communication protocol that defines the electrical characteristics, signal timing and data format of serial communication.

[0065] In detail, the electric control board 3 calculates the number of steps of the stepper motor 9 according to the difference between the preset air pressure value and the target air pressure value, and controls the stepper motor 9 to rotate according to the calculated number of steps, thereby improving the accuracy of air pressure fine-tuning.

[0066] Working principle:

[0067] When a barometer linear experiment is required, the portable computer 2 is used to send a preset air pressure instruction to the electric control board 3. The electric control board 3 controls the high-pressure air pump 4 to deliver air pressure to the fine-tuning cylinder 5 according to the air pressure instruction so that the air pressure in the fine-tuning cylinder 5 reaches a preset air pressure value. The electric control board 3 controls the stepping motor 9 to rotate to drive the screw rod 6 to rotate so that the nut 7 is displaced, thereby driving the piston 8 to achieve fine-tuning of the air pressure in the fine-tuning cylinder 5.

[0068] In detail, the high-pressure air pump 4 delivers air pressure to the fine-tuning air cylinder 5 so that the air pressure in the fine-tuning air cylinder reaches 90% of the target air pressure.

[0069] This embodiment provides a control method for a portable fully automatic barometer linear test device, comprising:

[0070] S1. Using the portable computer 2 to send a preset air pressure value to the electric control board 3, and using the electric control board 3 to start the high-pressure air pump 4 to deliver the preset air pressure value to the fine-tuning cylinder 5.

[0071] In detail, the preset air pressure value is 90% of the preset target air pressure.

[0072] In detail, the electric control board 3 is used to start the high-pressure air pump 4 to deliver a preset air pressure value to the fine-tuning cylinder 5. The preset running time is calculated based on the power of the high-pressure air pump 4 and the volume of the fine-tuning cylinder 5. The control board 3 controls the high-pressure air pump to run for the preset running time.

[0073] In detail, after the high-pressure air pump runs for the preset running time, the control panel 3 controls the high-pressure air pump to shut down.

[0074] S2. The electric control board 3 is used to drive the stepping motor 9 to rotate. The stepping motor 9 drives the lead screw 6 to rotate through the transmission gear 10, thereby causing the nut 7 to move and drive the piston 8 to move, thereby achieving fine adjustment of the air pressure in the fine-tuning cylinder 5.

[0075] In detail, the stepper motor 9 is driven to rotate by the electric control board 3 by calculating the rotation amount of the stepper motor 9 in advance according to the difference between the preset air pressure value and the preset target air pressure, and the rotation is driven according to the rotation amount.

[0076] Embodiment 2

[0077] Based on the above embodiment, this embodiment provides a portable fully automatic barometer linear test device with a pressure sensor, referring to Figure 2 As shown, a portable fully automatic barometer linear test device with a pressure sensor is provided in this embodiment, comprising a housing 1, a high-pressure air pump 4 arranged in the housing 1, and a fine-tuning cylinder 5 connected to the high-pressure air pump, characterized in that:

[0078] The high-pressure air pump 4 is electrically connected to an electric control board 3 disposed in the housing 1, and the electric control board is electrically connected to a portable computer 2 disposed in the housing;

[0079] The fine-tuning cylinder 5 is symmetrically provided with screw rods 6 on both sides, one end of the screw rod 6 is provided with a screw nut 7, and the other end is provided with a transmission gear 10, the transmission gear is coupled with a stepper motor 9 provided on one side of the fine-tuning cylinder 5, and the stepper motor 9 is electrically connected to the electric control board 3;

[0080] A pressure sensor 11 is disposed in the fine-tuning cylinder 5 , and the pressure sensor 11 is electrically connected to the electric control board 3 .

[0081] The fine-tuning cylinder 5 is provided with a piston 8 coupled with the nut;

[0082] The portable computer 2 sends a preset air pressure instruction to the electric control board 3, and the electric control board 3 controls the high-pressure air pump 4 to deliver air pressure to the fine-tuning cylinder 5 according to the air pressure instruction. When the electric control board 3 monitors through the pressure sensor 11 that the preset air pressure value inside the fine-tuning cylinder 5 has been reached, the high-pressure air pump 4 is controlled to be turned off. The electric control board 3 controls the stepping motor 9 to rotate according to the difference between the preset air pressure value and the target air pressure value, driving the screw rod 6 to rotate and causing the nut 7 to be displaced, thereby driving the piston 8 to achieve fine-tuning of the air pressure in the fine-tuning cylinder 5.

[0083] In detail, there are two screw rods 6, which are symmetrically arranged with respect to the fine-tuning cylinder 5, so that the piston can be evenly stressed and the stability when adjusting the air pressure is improved.

[0084] In detail, the housing 1 adopts a portable plastic waterproof box integrated design, and is integrally molded by high impact-resistant engineering plastic injection molding, thereby improving the waterproofness and durability of the device.

[0085] In detail, the materials used in the portable fully automatic barometer linear test device are all lightweight materials such as aluminum and rate, which can reduce the weight of the device and improve portability.

[0086] In detail, the portable fully automatic barometer linear test device is powered by a built-in lithium battery, which can improve the portability of the device.

[0087] In detail, the high-pressure air pump 4 is connected to the fine-tuning cylinder 5 via a high-pressure air pipe, which can ensure the stability of the connection.

[0088] In detail, the portable computer 2 sends a preset air pressure instruction to the electric control board 3 via the RS232 interface. The RS232 interface is a standard serial communication protocol that defines the electrical characteristics, signal timing and data format of serial communication.

[0089] In detail, the electric control board 3 calculates the number of steps of the stepper motor 9 according to the difference between the preset air pressure value and the target air pressure value, and controls the stepper motor 9 to rotate according to the calculated number of steps, thereby improving the accuracy of air pressure fine-tuning.

[0090] In detail, the pressure sensor 11 uses a pressure sensitive element with digital I2C output and a measuring range of 2.5 MPa. The digital processing part uses a pressure sensitive element with a dual-channel 24-bit ADC, making the product performance stable and reliable.

[0091] In detail, the electric control board 3 obtains the air pressure data in the fine-tuning cylinder 5 in real time through the pressure sensor 11, and the electric control board 3 transmits the obtained air pressure data to the portable computer 2, and the portable computer 2 generates a test curve according to the received air pressure data.

[0092] In detail, the portable computer 2 uploads the experimental curve to the office system to ensure the authenticity of the test data.

[0093] Working principle:

[0094] When a barometer linear experiment is required, the portable computer 2 is used to send a preset air pressure instruction to the electric control board 3. The electric control board 3 controls the high-pressure air pump 4 to deliver air pressure to the fine-tuning cylinder 5 according to the air pressure instruction so that the air pressure in the fine-tuning cylinder 5 reaches a preset air pressure value. The electric control board 3 monitors the air pressure in the fine-tuning cylinder 5 through the pressure sensor. When the air pressure in the fine-tuning cylinder 5 reaches the preset air pressure value, the electric control board 3 controls the high-pressure air pump 4 to close. The electric control board 3 controls the stepping motor 9 to rotate to drive the screw rod 6 to rotate, so that the nut 7 is displaced, and then drives the piston 8 to achieve fine-tuning of the air pressure in the fine-tuning cylinder 5.

[0095] In detail, the high-pressure air pump 4 delivers air pressure to the fine-tuning air cylinder 5 so that the air pressure in the fine-tuning air cylinder reaches 90% of the target air pressure.

[0096] This embodiment provides a control method for a portable fully automatic barometer linear test device with a pressure sensor, comprising:

[0097] S1. Use the portable computer 2 to send a preset air pressure value to the electric control board 3, use the electric control board 3 to start the high-pressure air pump 4 to deliver the preset air pressure value to the fine-tuning cylinder 5, and use the pressure sensor 11 to detect the current air pressure in the fine-tuning cylinder 5 in real time.

[0098] In detail, the preset air pressure value is 90% of the preset target air pressure.

[0099] In detail, the real-time detection of the current air pressure in the fine-tuning cylinder 5 by the pressure sensor 11 is performed by the pressure sensor 11 arranged in the fine-tuning cylinder 5 to monitor in real time the latest air pressure value in the fine-tuning cylinder 5 during the process of the high-pressure air pump 4 delivering air pressure to the fine-tuning cylinder 5.

[0100] S2. When the current air pressure reaches the preset air pressure value, the electric control board 3 is used to turn off the high-pressure air pump 4.

[0101] In detail, when the control board 3 detects through the pressure sensor 11 that the air pressure in the fine-tuning cylinder 5 reaches the target air pressure, the high-pressure air pump 4 is controlled to be turned off.

[0102] S3, using the electric control board 3 to calculate the number of steps of the stepper motor according to the difference between the current air pressure and the preset target air pressure, using the electric control board 3 to drive the stepper motor 9 to rotate according to the number of steps, and using the pressure sensor 11 to monitor the fine-tuning air pressure in the fine-tuning cylinder.

[0103] In detail, the electric control board 3 is used to calculate the number of steps of the stepper motor according to the difference between the current air pressure and the preset target air pressure, and the number of steps required by the stepper motor is calculated comprehensively according to the gear 10 density and radius of the transmission gear and the 1 density of the screw rod.

[0104] S4. When the fine-tuning air pressure reaches the target air pressure, the control board 3 is used to turn off the stepping motor 9.

[0105] In detail, the electric control board 3 obtains the air pressure data in the fine-tuning cylinder 5 in real time through the pressure sensor 11, and the electric control board 3 transmits the obtained air pressure data to the portable computer 2, and the portable computer 2 generates a test curve according to the received air pressure data.

[0106] In detail, the portable computer 2 uploads the experimental curve to the office system to ensure the authenticity of the test data.

[0107] Embodiment 3

[0108] Based on the above embodiment, this embodiment provides a portable fully automatic barometer linear test device with a camera and a recording device. Figure 3 As shown, a portable fully automatic barometer linear test device with a camera and a recording device is provided for this embodiment, comprising a housing 1, a high-pressure air pump 4 arranged in the housing 1, and a fine-tuning cylinder 5 connected to the high-pressure air pump, characterized in that:

[0109] The high-pressure air pump 4 is electrically connected to an electric control board 3 disposed in the housing 1, and the electric control board is electrically connected to a portable computer 2 disposed in the housing;

[0110] The fine-tuning cylinder 5 is symmetrically provided with screw rods 6 on both sides, one end of the screw rod 6 is provided with a screw nut 7, and the other end is provided with a transmission gear 10, the transmission gear is coupled with a stepper motor 9 provided on one side of the fine-tuning cylinder 5, and the stepper motor 9 is electrically connected to the electric control board 3;

[0111] A pressure sensor 11 is disposed in the fine-tuning cylinder 5 , and the pressure sensor 11 is electrically connected to the electric control board 3 .

[0112] The fine-tuning cylinder 5 is provided with a piston 8 coupled with the nut;

[0113] The portable computer 2 sends a preset air pressure instruction to the electric control board 3, and the electric control board 3 controls the high-pressure air pump 4 to deliver air pressure to the fine-tuning cylinder 5 according to the air pressure instruction. When the electric control board 3 monitors through the pressure sensor 11 that the preset air pressure value inside the fine-tuning cylinder 5 has been reached, the high-pressure air pump 4 is controlled to be turned off. The electric control board 3 controls the stepping motor 9 to rotate according to the difference between the preset air pressure value and the target air pressure value, driving the screw rod 6 to rotate and causing the nut 7 to be displaced, thereby driving the piston 8 to achieve fine-tuning of the air pressure in the fine-tuning cylinder 5.

[0114] In detail, the portable computer 2 is electrically connected to a camera 12 and a recording device 13 disposed outside the housing 1 .

[0115] In detail, when the barometer linearity test is performed, the portable computer 2 controls the camera 12 and the recording device 13 to start recording.

[0116] In detail, when the barometer linear test is completed, the portable computer 2 controls the camera 12 and the recording device 13 to stop recording, and locally stores the recorded video and audio, which can ensure the authenticity of the test data.

[0117] In detail, the portable computer 2 uploads the locally stored video and audio to the office system.

[0118] In detail, there are two screw rods 6, which are symmetrically arranged with respect to the fine-tuning cylinder 5, so that the piston can be evenly stressed and the stability when adjusting the air pressure is improved.

[0119] In detail, the housing 1 adopts a portable plastic waterproof box integrated design, and is integrally molded by high impact-resistant engineering plastic injection molding, thereby improving the waterproofness and durability of the device.

[0120] In detail, the materials used in the portable fully automatic barometer linear test device are all lightweight materials such as aluminum and rate, which can reduce the weight of the device and improve portability.

[0121] In detail, the portable fully automatic barometer linear test device is powered by a built-in lithium battery, which can improve the portability of the device.

[0122] In detail, the high-pressure air pump 4 is connected to the fine-tuning cylinder 5 via a high-pressure air pipe, which can ensure the stability of the connection.

[0123] In detail, the portable computer 2 sends a preset air pressure instruction to the electric control board 3 via the RS232 interface. The RS232 interface is a standard serial communication protocol that defines the electrical characteristics, signal timing and data format of serial communication.

[0124] In detail, the electric control board 3 calculates the number of steps of the stepper motor 9 according to the difference between the preset air pressure value and the target air pressure value, and controls the stepper motor 9 to rotate according to the calculated number of steps, thereby improving the accuracy of air pressure fine-tuning.

[0125] In detail, the pressure sensor 11 uses a pressure sensitive element with digital I2C output and a measuring range of 2.5 MPa. The digital processing part uses a pressure sensitive element with a dual-channel 24-bit ADC, making the product performance stable and reliable.

[0126] Working principle:

[0127] When a barometer linear experiment is required, the portable computer 2 is used to send a preset air pressure instruction to the electric control board 3. The electric control board 3 controls the high-pressure air pump 4 to deliver air pressure to the fine-tuning cylinder 5 according to the air pressure instruction so that the air pressure in the fine-tuning cylinder 5 reaches a preset air pressure value. The electric control board 3 monitors the air pressure in the fine-tuning cylinder 5 through the pressure sensor. When the air pressure in the fine-tuning cylinder 5 reaches the preset air pressure value, the electric control board 3 controls the high-pressure air pump 4 to close. The electric control board 3 controls the stepping motor 9 to rotate to drive the screw rod 6 to rotate, so that the nut 7 is displaced, and then drives the piston 8 to achieve fine-tuning of the air pressure in the fine-tuning cylinder 5.

[0128] In detail, the high-pressure air pump 4 delivers air pressure to the fine-tuning air cylinder 5 so that the air pressure in the fine-tuning air cylinder reaches 90% of the target air pressure.

[0129] Reference Figure 4 As shown, a flow chart of a control method of a portable fully automatic barometer linear test device with a camera and a recording device is provided in this embodiment, and the method includes:

[0130] S1. Use the portable computer 2 to turn on the camera 12 and the recording device 13.

[0131] In detail, the camera 12 is used to shoot the test process of the portable fully automatic barometer linear test device, and the recording device is used to record the audio of the test process.

[0132] S2, using the portable computer 2 to send a preset air pressure value to the electric control board 3, using the electric control board 3 to start the high-pressure air pump 4, and using the pressure sensor 11 to detect the current air pressure in the fine-tuning cylinder 5 in real time.

[0133] In detail, the preset air pressure value is 90% of the preset target air pressure.

[0134] S3. When the current air pressure reaches the preset air pressure value, the electric control board 3 is used to turn off the high-pressure air pump 4.

[0135] In detail, when the control board 3 detects through the pressure sensor 11 that the air pressure in the fine-tuning cylinder 5 reaches the target air pressure, the high-pressure air pump 4 is controlled to be turned off.

[0136] S4. Utilize the electric control board 3 to calculate the number of steps of the stepper motor according to the difference between the current air pressure and the preset target air pressure, utilize the electric control board 3 to drive the stepper motor 9 to rotate according to the number of steps, and utilize the pressure sensor 11 to monitor the fine-tuning air pressure in the fine-tuning cylinder.

[0137] In detail, the step number of the stepper motor is calculated by the electric control board 3 according to the difference between the current air pressure and the preset target air pressure, and the step number is calculated according to the PID algorithm.

[0138] In detail, the PID algorithm is a feedback control mechanism widely used in industrial control systems. The PID controller adjusts the control input by calculating the proportional (P), integral (I) and differential (D) parts of the control error (i.e. the difference between the desired value and the actual value) to make the system reach or maintain the desired state.

[0139] In detail, the electric control board 3 is used to calculate the number of steps of the stepper motor according to the difference between the current air pressure and the preset target air pressure, and the number of steps required by the stepper motor is calculated comprehensively according to the gear 10 density and radius of the transmission gear and the 1 density of the screw rod.

[0140] S5. When the fine-tuning air pressure reaches the target air pressure, the control panel 3 is used to turn off the stepper motor 9, the portable computer 2 is used to turn off the camera 12 and the recording device 13, and the recorded video and audio are stored locally and uploaded to the office system.

[0141] In detail, the electric control board 3 obtains the air pressure data in the fine-tuning cylinder 5 in real time through the pressure sensor 11, and the electric control board 3 transmits the obtained air pressure data to the portable computer 2, and the portable computer 2 generates a test curve according to the received air pressure data.

[0142] In detail, the portable computer 2 uploads the test curve to the office system to ensure the authenticity of the test data.

[0143] In the embodiment of the present invention, the portable computer 2 is used to turn off the camera 12 and the recording device 13, and the recorded video and audio are locally stored and uploaded to the office system. After that, the method further includes:

[0144] Using the electric control board 3 to obtain the air pressure reading change data of the pressure sensor 11;

[0145] The air pressure reading change data is sent to the portable computer 2 according to the electric control board 3;

[0146] The portable computer 2 generates a test curve according to the air pressure reading change data, and uploads the test curve to the office system.

[0147] Embodiment 4

[0148] Based on the above embodiments, this embodiment provides an application example.

[0149] The portable fully automatic high-precision barometer linear test device is composed of a high-pressure air pump, a fine-tuning cylinder, a stepper motor, an electric control board (lower computer), a battery and a portable computer (upper computer).

[0150] The portable computer carries the upper computer program. When the barometer is tested, at the beginning of the test, the upper computer sends the set pressure value to the electric control board carrying the lower computer program through the RS232 interface;

[0151] The lower computer program starts the high-pressure air pump to provide pre-pressure to the test device. The pre-pressure value is less than the target value. After the lower computer monitors that the cylinder pressure reaches the pre-pressure, it turns off the high-pressure air pump and then starts the air pressure fine-tuning process. During the air pressure fine-tuning process, the lower computer uses the PID algorithm to calculate the number of steps of the stepper motor according to the difference between the current air pressure and the target air pressure, and drives the stepper motor to rotate forward or reverse. The stepper motor drives the screw rod to rotate, and the screw rod twists the nut to move forward and backward on the screw rod axis. The nut drives the fine-tuning cylinder piston to adjust the air pressure in the cylinder.

[0152] Embodiment 5

[0153] On the basis of the above embodiments, this embodiment provides a computer device, including a memory, a processor, and a computer program stored in the memory, wherein the processor executes the computer program to implement the steps of the method described in the above embodiments.

[0154] In some implementations of this embodiment, a computer-readable storage medium is provided, on which a computer program is stored, characterized in that when the computer program is executed by a processor, the steps of the method described in the above embodiment are implemented.

[0155] The computer-readable storage medium may be implemented by any type of volatile or non-volatile storage device or a combination thereof, and the computer-readable storage medium may include but is not limited to, for example, random access memory (RAM), read-only memory (ROM), flash memory, EPROM memory, EEPROM memory, registers, computer storage media (e.g., hard disk, floppy disk, solid-state drive, removable disk, CD-ROM, DVD-ROM, Blu-ray disc, etc.).

[0156] The computer-readable storage medium may also store at least one computer executable program / instruction, which may be, for example, a computer-readable instruction. The computer-readable storage medium includes, but is not limited to, for example, a volatile memory and / or a non-volatile memory. The volatile memory may include, for example, a random access memory (RAM) and / or a cache memory (cache), etc. The computer-readable storage medium may include, for example, a read-only memory (ROM), a hard disk, a flash memory, etc. For example, a non-transitory computer-readable storage medium may be connected to a computing device such as a computer, and then, when the computing device runs the computer-readable instructions stored on the computer-readable storage medium, the various methods described above may be performed.

[0157] In addition, the computer device may also include (but not limited to) a data bus, an input / output (I / O) bus, a display, and input / output devices (eg, keyboard, mouse, speaker, etc.), etc.

[0158] The processor may communicate with external devices via an I / O bus via a wired or wireless network.

[0159] In one embodiment, the at least one computer executable instruction may also be compiled into or constitute a software product / computer program product, wherein one or more computer executable instructions are executed by a processor to perform the various functions and / or method steps in the embodiments described in the present technology.

[0160] In the embodiments provided in the present disclosure, it should be understood that the disclosed devices and methods can also be implemented in other ways. The device embodiments described above are merely schematic. For example, the flowcharts and block diagrams in the accompanying drawings show the possible architecture, functions and operations of the devices, methods and computer program products according to multiple embodiments of the present disclosure. In this regard, each box in the flowchart or block diagram can represent a module, a program segment or a part of a code, and the above-mentioned module, program segment or a part of the code contains one or more executable instructions for implementing the specified logical function. It should also be noted that in some alternative implementations, the functions marked in the box can also occur in a different order from the order marked in the accompanying drawings. For example, two consecutive boxes can actually be executed substantially in parallel, and they can sometimes be executed in the opposite order, depending on the functions involved. It should also be noted that each box in the block diagram and / or flowchart, and the combination of boxes in the block diagram and / or flowchart can be implemented with a dedicated hardware-based system that performs a specified function or action, or can be implemented with a combination of dedicated hardware and computer instructions.

[0161] It should be noted that in the present disclosure, the terms "include", "comprises" or any other variations thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device. In the absence of further restrictions, an element limited by the sentence "includes a ..." does not exclude the existence of other identical elements in the process, method, article or device including the element.

[0162] Although the embodiments disclosed in the present disclosure are as above, the above contents are only embodiments adopted for facilitating the understanding of the present disclosure and are not intended to limit the present disclosure. Any technician in the technical field to which the present disclosure belongs can make any modifications and changes in the form and details of the implementation without departing from the spirit and scope disclosed in the present disclosure, but the scope of patent protection of the present disclosure shall still be subject to the scope defined in the attached claims.

Claims

1. A portable fully automatic barometer linear test device, comprising a housing, a high-pressure air pump disposed in the housing, and a fine-tuning cylinder connected to the high-pressure air pump, characterized in that: The high-pressure air pump is electrically connected to an electric control board disposed in the housing, and the electric control board is electrically connected to a portable computer disposed in the housing; Screw rods are symmetrically arranged on both sides of the fine-tuning cylinder, a nut is arranged at one end of the screw rod, and a transmission gear is arranged at the other end, the transmission gear is coupled with a stepper motor arranged on one side of the fine-tuning cylinder, and the stepper motor is electrically connected to the electric control board; The fine-tuning cylinder is provided with a piston coupled with the nut; The portable computer sends a preset air pressure instruction to the electronic control board, and the electronic control board controls the high-pressure air pump to deliver air pressure to the fine-tuning cylinder according to the air pressure instruction. The electronic control board controls the rotation of the stepper motor to drive the screw rod to rotate, causing the nut to move, and then drives the piston to fine-tune the air pressure in the fine-tuning cylinder.

2. The portable fully automatic barometer linear test device according to claim 1 is characterized in that: A pressure sensor connected to the electric control board is arranged in the fine-tuning cylinder, which can improve the accuracy of air pressure adjustment.

3. The portable fully automatic barometer linear test device according to claim 2 is characterized in that: The portable computer is connected to an external camera and recording equipment to ensure the authenticity of the experimental process.

4. The portable fully automatic barometer linear test device according to claim 3 is characterized in that: There are two screw rods, which are symmetrically arranged about the fine-tuning cylinder, so that the piston can be evenly stressed and the stability when adjusting the air pressure is improved.

5. The portable fully automatic barometer linear test device according to claim 4 is characterized in that: The housing adopts a portable plastic waterproof box integrated design and is integrally formed by injection molding of high-impact engineering plastics, thereby improving the waterproofness and durability of the device.

6. The portable fully automatic barometer linearity test device according to claim 5, characterized in that: The pressure sensor uses a pressure sensitive element with digital I2C output and a measuring range of 2.5 MPa. The digital processing part uses a pressure sensitive element with a dual-channel 24-bit ADC, making the product performance stable and reliable.

7. A portable fully automatic barometer linear test device control method, the method comprising: Using the portable computer to turn on the camera and the recording device; Using the portable computer to send a preset air pressure value to the electric control board, using the electric control board to start the high-pressure air pump, and using the pressure sensor to detect the current air pressure in the fine-tuning cylinder in real time; When the current air pressure reaches the preset air pressure value, the high-pressure air pump is turned off by the electric control panel; Utilizing the electric control board to calculate the number of steps of the stepping motor according to the difference between the current air pressure and the preset target air pressure, utilizing the electric control board to drive the stepping motor to rotate according to the number of steps, and utilizing the pressure sensor to monitor the fine-tuning air pressure in the fine-tuning cylinder; When the fine-tuned air pressure reaches the target air pressure, the control panel is used to turn off the stepper motor, the portable computer is used to turn off the camera and the recording device, and the recorded video and audio are stored locally and uploaded to the office system.

8. The method according to claim 7, characterized in that The method further comprises: using the portable computer to turn off the camera and the recording device, storing the recorded video and audio locally and uploading them to the office system. After that, the method further comprises: Using the electric control board to obtain the air pressure reading change data of the pressure sensor; sending the air pressure reading change data to the portable computer according to the electric control board; The portable computer generates a test curve according to the air pressure reading change data, and uploads the test curve to the office system.

9. A computer device comprising a memory, a processor and a computer program stored in the memory, characterized in that: The processor executes the computer program to implement the steps of the method according to any one of claims 7 and 8.

10. A computer-readable storage medium having a computer program stored thereon, characterized in that: When the computer program is executed by a processor, the steps of the method described in any one of claims 7 and 8 are implemented.

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