A pressure gauge for test gas circuit and its intelligent control and cleaning optimization method

Abstract

The present invention relates to the technical field of pressure gauges, and discloses a pressure gauge for a test gas circuit and an intelligent control and cleaning optimization method thereof, which solves the problems of the test gas circuit pressure gauges currently on the market. The pressure gauge comprises an outer protective box, one side of which is fixedly connected to a connecting valve body, and one side of the connecting valve body is provided with a pipeline body; a plurality of metal heat sinks can be used to increase the heat dissipation area of ​​the surface of the pressure gauge body, while improving the heat dissipation effect after the wind force generated by the fan is blown to the surface of the metal heat sink, thereby improving the working stability of the pressure gauge body in a high temperature environment; at the same time, by conducting the heat generated by the heating wire to the surface of the pressure gauge body to increase the temperature, the inaccuracy of the pressure gauge body measurement data at low temperature can be reduced, thereby improving the working stability; the surface of the metal heat sink is cleaned by a cleaning brush, and dust and other particles accumulated on the surface of the metal heat sink are cleaned, thereby improving the temperature conduction effect of the metal heat sink.

Description

Technical Field

[0001] The present invention belongs to the technical field of pressure gauges, and in particular relates to a pressure gauge for a test gas circuit and an intelligent control and heat dissipation optimization method thereof. Background Art

[0002] The test gas circuit refers to the system used to supply, exhaust and control gas flow in the laboratory. In the laboratory gas circuit system, the pressure gauge is mainly used to monitor and control the gas pressure to ensure the safety and accuracy of the experiment. For different types of gases and application scenarios, you may need to choose different types of pressure gauges, such as mechanical pressure gauges, electronic pressure gauges, etc. In addition, in order to ensure the accuracy and reliability of the pressure gauge, it is also necessary to calibrate and maintain it regularly. In the gas test process, pressure detection is the key link to ensure the safety and accuracy of the test.

[0003] Usually, the air conditioning system test directly uses the air conditioning system pipeline on the aircraft. However, the pressure required by the process of each test stage of the air conditioning system is not consistent. The above-mentioned pressure supply control method cannot directly solve the situation where the pressure on the aircraft is greater than the test requirement. At this time, the integrity of the air conditioning system is generally destroyed, and the air is discharged by disconnecting the connection joint somewhere on the aircraft to reduce the pressure of the air conditioning system. However, this venting method cannot accurately control the amount of air discharged. If the joint is loosened a little, the amount of air discharged is small and the venting time is long. If the amount of loosening is too large, the high-pressure gas will directly break off the joint, causing the joint to be damaged and scrapped, and even the catheter will fly around, causing damage to other products and injuries to people. At the same time, when troubleshooting and replacing working end parts, the pressure of the entire air conditioning system needs to be completely discharged. In this way, the deflation and inflation time is too long, and the maintenance efficiency is too low.

[0004] In the prior art, the authorization publication number "CN114408208A" discloses an "access-type pressure detection and control device and method"; it solves the problem that when releasing the system pressure during the test of the above-mentioned existing air conditioning system, it is not only necessary to destroy the integrity of the air conditioning system, but also the air release force is difficult to control. The device includes a shell, a first air hand valve and a second air hand valve located on the shell, and a first pressure gauge and a second pressure gauge located in the shell; the shell is also provided with an air inlet, an air outlet and an exhaust port; the gas enters the first air hand valve through the air inlet and is discharged from the air outlet, that is, the main line is air inlet-air hand valve-air outlet; the first pressure gauge is connected between the air inlet and the first air hand valve; the second pressure gauge and the second air hand valve are connected between the first air hand valve and the air outlet; the other port of the second air hand valve is connected to the exhaust port.

[0005] The above-mentioned "an access-type pressure detection and control device and method" still has some disadvantages, for example: changes in ambient temperature and working temperature will directly affect the elastic variables of the pressure gauge. When the temperature rises, the elastic variation area of ​​the material of the pressure gauge sensitive element will show a downward trend; when the temperature drops, the deformation degree of the internal element will decrease, resulting in obvious changes in the accuracy and variables inside the pressure gauge, and the inaccuracy caused by the temperature passing through the atmosphere reduces the accuracy of the pressure gauge measurement;

[0006] To this end, a pressure gauge for a test gas circuit and its intelligent control and cleaning optimization method are proposed here to solve the above-mentioned problems. Summary of the invention

[0007] In view of the above situation, in order to overcome the defects of the prior art, the present invention provides a pressure gauge for a test gas circuit and its intelligent control and cleaning optimization method, which effectively solves the problem that when the temperature rises, the elastic change area of ​​the material of the pressure gauge sensitive element will show a downward trend; and when the temperature drops, the deformation degree of the internal components will decrease, resulting in obvious changes in the accuracy and variables inside the pressure gauge, and the inaccuracy caused by the temperature passing through the atmosphere reduces the accuracy of the pressure gauge measurement.

[0008] To achieve the above-mentioned objectives, the present invention provides the following technical solutions: a pressure gauge for a test gas circuit, comprising an outer protective box, one side of the outer protective box is fixedly connected to a connecting valve body, one side of the connecting valve body is provided with a pipeline body, the inner side of the outer protective box is fixedly connected to a side fixing frame, one side of the side fixing frame is fixedly connected to a temperature control box, the inner side of the side fixing frame is fixedly connected to a motor body, the output shaft of the motor body is movably connected to a transmission rod, one end of the transmission rod is fixedly connected to a connecting disk, one side of the connecting disk is fixedly connected to a blower fan, and one side of the pressure gauge body is fixedly connected to a metal heat sink.

[0009] Preferably: a side temperature controller is fixedly connected to one side of the temperature control box, a safety monitor is fixedly connected to the top of the side temperature controller, a side connecting seat is provided on one side of the side temperature controller, a heating wire is movably connected to one side of the side connecting seat, and a temperature monitor is fixedly connected to the other side of the temperature control box.

[0010] Preferably: a left transmission disc is movably sleeved on the surface of the transmission rod, a rack is movably connected to one side of the left transmission disc, a right transmission gear disc is movably connected to one side of the rack, one end of the right transmission gear disc is fixedly connected to a connecting rod, one end of the connecting rod is fixedly connected to the left connecting gear disc, one side of the left connecting gear disc is movably connected to the right connecting gear disc, one side of the right connecting gear disc is movably connected to a fixing rod, both sides of the fixing rod are fixedly connected to a transmission square frame, one side of the transmission square frame is fixedly connected to a side connecting plate, and one side of the side connecting plate is movably connected to a cleaning brush.

[0011] Preferably: a side connection frame is provided on one side of the outer protection box, a fixing plate is fixedly connected to the inner side of the side connection frame, a movable hole is provided on the surface of the fixing plate, and the inner side of the movable hole is movably connected to the surface of the connecting rod.

[0012] Preferably, a side communication frame is provided on one side of the inner bellows, and the inner side of the side communication frame is arranged on the surface of the rack.

[0013] Preferably, one end of the fixing rod is movably connected to a bearing disk, and one side of the bearing disk is movably connected to one side of the pressure gauge body.

[0014] Preferably: a limiting hole is provided on one side of the temperature control box, and the inner side of the limiting hole is movably connected to the surface of the transmission rod.

[0015] Preferably, a protective frame is fixedly connected to the inner side of the inner bellows, a connecting hole is opened on the inner side of the protective frame, and the inner side of the connecting hole is movably connected to the surface of the connecting plate.

[0016] Preferably: the top of the sensor is fixedly connected to the bottom of the pressure gauge body, the sensor is used to monitor the gas pressure value in real time, the bottom of the sensor is fixedly connected with an intelligent controller, and the intelligent controller and the sensor are both arranged at the bottom of the pressure gauge body.

[0017] An intelligent control method for a pressure gauge for a test gas circuit comprises the following steps:

[0018] S1. First, set the normal working range and alarm threshold of gas pressure through the user interface or preset parameters to ensure a stable communication connection between the intelligent controller and the sensor;

[0019] S2, the intelligent controller receives the gas pressure data sent by the sensor in real time, and collects the ambient temperature and equipment working temperature through the side temperature controller;

[0020] S3, the intelligent controller processes the received data, compares the processed data with the preset gas pressure range, and determines whether the current gas pressure value is within the normal range;

[0021] S4. When the gas pressure value is within the normal range, the intelligent controller continues to monitor the data without performing any operation. If the gas pressure value exceeds the normal range, the intelligent controller will start the motor body and control the gas pressure by dissipating heat through the rotation of the fan. When the temperature is too low, the side thermostat will be started.

[0022] The cleaning optimization method of a pressure gauge for a test gas circuit of the present invention introduces a path planning algorithm to optimize the movement path of a cleaning brush to ensure comprehensive cleaning of a metal heat sink.

[0023] Compared with the prior art, the present invention has the following beneficial effects:

[0024] 1) In the test gas circuit pressure gauge and its intelligent control method, the sensor is installed at the bottom of the pressure gauge body to monitor the gas pressure value in real time and transmit the monitoring data to the intelligent controller. The intelligent controller is connected to the sensor and automatically adjusts the temperature and pressure inside the pressure gauge body according to the data transmitted by the sensor to ensure that the pressure gauge body works in the best state. The intelligent controller realizes precise control of the gas pressure, thereby improving the accuracy and stability of the pressure gauge body measurement;

[0025] 2) During the operation of the test gas circuit pressure gauge and its intelligent control method, wind can be generated by the rotation of the fan and blown toward the surface of the pressure gauge body. At the same time, the heat dissipation area of ​​the pressure gauge body surface can be increased by using a plurality of metal heat sinks on the surface of the pressure gauge body, thereby improving the heat dissipation effect of the pressure gauge body after the wind generated by the fan blows toward the surface of the metal heat sink, improving the heat dissipation effect of the pressure gauge body, and improving the stability of the pressure gauge body working in a high temperature environment;

[0026] 3) During the operation of the test gas circuit pressure gauge and its intelligent control method, the temperature in the outer protection box can be monitored in real time through the temperature monitor, and the heating wire can be driven to adjust to the optimal temperature through the side temperature controller. After the heating wire is controlled to heat up in the temperature control box, the heat generated will be blown to the surface of the pressure gauge body as the fan rotates. Therefore, when the ambient temperature is low, the heat generated by the heating wire can be transferred to the surface of the pressure gauge body to increase the temperature, thereby reducing the inaccuracy of the pressure gauge body measurement data at low temperatures and improving the stability of the operation;

[0027] 4) When the test gas circuit pressure gauge and its intelligent control method are working, the transmission square frame will drive the two side connecting plates to rotate along one side of the metal heat sink during rotation. The surface of the metal heat sink can be cleaned by a cleaning brush during rotation, and dust and other particles accumulated on the surface of the metal heat sink can be cleaned, thereby improving the temperature conduction effect of the metal heat sink. When the fixed rod rotates, it will be connected to one side of the pressure gauge body through the bearing disk. The bearing disk can be used to improve the stability of the rotation of the fixed rod;

[0028] 5) During the operation of the test gas circuit pressure gauge and its intelligent control method, the gas circuit pressure gauge often fails to conduct heat well due to dust accumulated on the metal heat sink, affecting the working performance. A path planning algorithm is introduced to optimize the movement path of the cleaning brush to ensure comprehensive cleaning of the metal heat sink and improve cleaning efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0029] The accompanying drawings are used to provide a further understanding of the present invention and constitute a part of the specification. Together with the embodiments of the present invention, they are used to explain the present invention and do not constitute a limitation of the present invention. In the accompanying drawings:

[0030] Figure 1 It is a schematic diagram of the overall appearance structure of the present invention;

[0031] Figure 2 It is a schematic diagram of the structure of the outer protection box of the present invention;

[0032] Figure 3 It is a schematic diagram of the structure of the pressure gauge body of the present invention;

[0033] Figure 4 It is a schematic diagram of the structure of the blower fan of the present invention;

[0034] Figure 5 It is a schematic diagram of the temperature control box structure of the present invention;

[0035] Figure 6 It is a schematic diagram of the connecting rod structure of the present invention;

[0036] Figure 7 It is a schematic diagram of the bearing disc structure of the present invention;

[0037] Figure 8 This is a flow chart of the cleaning system optimization algorithm of the present invention.

[0038] In the figure: 1, outer protection box; 2, pressure gauge body; 3, connecting valve body; 4, pipeline body; 5, sensor; 6, intelligent controller; 701, side fixing frame; 702, motor body; 703, temperature control box; 704, limit hole; 705, transmission rod; 706, connecting plate; 707, fan; 708, inner bellows; 709, protection frame; 7010, connecting hole; 801, side thermostat; 802, safety monitor; 803, side connecting seat; 804, heating Wire; 805, temperature monitor; 901, side connecting frame; 902, left transmission disc; 903, rack; 904, right transmission gear disc; 905, connecting rod; 906, fixing plate; 907, left connecting gear disc; 908, right connecting gear disc; 909, fixing rod; 9010, transmission square frame; 9011, side connecting plate; 9012, cleaning brush; 9013, bearing disc; 9014, metal heat sink; 9015, side connecting frame; 9016, movable hole. DETAILED DESCRIPTION

[0039] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0040] Example 1

[0041] In this embodiment, Figure 1-Figure 7 Given, the present invention provides the following technical solutions:

[0042] A pressure gauge for a test gas circuit comprises an outer protective box 1, one side of the outer protective box 1 is fixedly connected to a connecting valve body 3, one side of the connecting valve body 3 is provided with a pipeline body 4, the inner side of the outer protective box 1 is fixedly connected to a side fixing frame 701, one side of the side fixing frame 701 is fixedly connected to a temperature control box 703, the inner side of the side fixing frame 701 is fixedly connected to a motor body 702, the output shaft of the motor body 702 is movably connected to a transmission rod 705, one end of the transmission rod 705 is fixedly connected to a connecting disk 706, one side of the connecting disk 706 is fixedly connected to a blower fan 707, and one side of the pressure gauge body 2 is fixedly connected to a metal heat sink 9014.

[0043] It should be noted that the rotation of the blower fan 707 can generate wind and blow toward the surface of the pressure gauge body 2. At the same time, the heat dissipation area of ​​the pressure gauge body 2 can be increased by utilizing the multiple metal heat sinks 9014 on the surface of the pressure gauge body 2, thereby improving the heat dissipation effect of the pressure gauge body 2 after the wind generated by the blower fan 707 blows toward the surface of the metal heat sink 9014, thereby improving the heat dissipation effect of the pressure gauge body 2 and improving the stability of the pressure gauge body 2 working in a high temperature environment.

[0044] In this embodiment, a side temperature controller 801 is fixedly connected to one side of the temperature control box 703, a safety monitor 802 is fixedly connected to the top of the side temperature controller 801, a side connecting seat 803 is provided on one side of the side temperature controller 801, a heating wire 804 is movably connected to one side of the side connecting seat 803, and a temperature monitor 805 is fixedly connected to the other side of the temperature control box 703.

[0045] It should be noted that after the side temperature controller 801 is connected to an external power supply and the heating wire 804 on one side is driven to start by the side temperature controller 801, the heating wire 804 can be used to heat up, and the temperature of the heating wire 804 can be controlled by the side temperature controller 801. In the process of control by the side temperature controller 801, the voltage can be safely controlled by the safety monitor 802. When the temperature exceeds the maximum value, the power supply will be cut off for protection. At the same time, the temperature monitor 805 on one side of the temperature control box 703 can monitor the temperature inside the outer protection box 1 in real time, and the heating wire 804 can be driven by the side temperature controller 801 to adjust to the optimal temperature.

[0046] In this embodiment, the surface of the transmission rod 705 is movably connected with a left transmission disk 902, one side of the left transmission disk 902 is movably connected with a rack 903, one side of the rack 903 is movably connected with a right transmission gear disk 904, one end of the right transmission gear disk 904 is fixedly connected with a connecting rod 905, one end of the connecting rod 905 is fixedly connected with a left connecting gear disk 907, one side of the left connecting gear disk 907 is movably connected with a right connecting gear disk 908, one side of the right connecting gear disk 908 is movably connected with a fixing rod 909, both sides of the fixing rod 909 are fixedly connected with a transmission frame 9010, one side of the transmission frame 9010 is fixedly connected with a side connecting plate 9011, and one side of the side connecting plate 9011 is movably connected with a cleaning brush 9012.

[0047] It should be noted that during the rotation of the transmission frame 9010, the two side connecting plates 9011 will be driven to rotate along one side of the metal heat sink 9014. During the rotation, the surface of the metal heat sink 9014 can be cleaned by the cleaning brush 9012, and the dust and other particles accumulated on the surface of the metal heat sink 9014 can be cleaned, thereby improving the temperature conduction effect of the metal heat sink 9014.

[0048] In this embodiment, a side connecting frame 9015 is opened on one side of the outer protective box 1, and a fixing plate 906 is fixedly connected to the inner side of the side connecting frame 9015. A movable hole 9016 is opened on the surface of the fixing plate 906, and the inner side of the movable hole 9016 is movably connected to the surface of the connecting rod 905.

[0049] It should be noted that the rotating right transmission gear plate 904 will drive the connecting rod 905 to rotate, and the rotating connecting rod 905 can be supported on the inner side of the side connecting frame 9015 by the fixing plate 906 through the connection with the movable hole 9016, which can improve the rotation stability of the connecting rod 905.

[0050] In this embodiment, a side connecting frame 901 is opened on one side of the inner bellows 708 , and the inner side of the side connecting frame 901 is arranged on the surface of the rack 903 .

[0051] It should be noted that, by opening the side connecting frame 901, the rack 903 can be kept free to rotate when penetrating the inner and outer sides of the inner bellows 708.

[0052] In this embodiment, one end of the fixing rod 909 is movably connected to a bearing plate 9013 , and one side of the bearing plate 9013 is movably connected to one side of the pressure gauge body 2 .

[0053] It should be noted that when the fixing rod 909 rotates, it will be connected to one side of the pressure gauge body 2 through the bearing plate 9013. The bearing plate 9013 can improve the stability of the rotation of the fixing rod 909.

[0054] In this embodiment, a limiting hole 704 is provided on one side of the temperature control box 703 , and the inner side of the limiting hole 704 is movably connected to the surface of the transmission rod 705 .

[0055] It should be noted that, by utilizing the limiting hole 704 on the surface of the temperature control box 703, the transmission rod 705 can pass through the inner side of the limiting hole 704 and drive the connecting disk 706 to rotate. During the rotation process, the connecting disk 706 will drive the fan 707 to rotate along the inner side of the inner bellows 708. The limiting hole 704 improves the stability of the rotation of the transmission rod 705.

[0056] In this embodiment, a protective frame 709 is fixedly connected to the inner side of the inner bellows 708 , a connecting hole 7010 is opened on the inner side of the protective frame 709 , and the inner side of the connecting hole 7010 is movably connected to the surface of the connecting plate 706 .

[0057] It should be noted that the surface of the connection disk 706 is limited by the connecting hole 7010 opened on the surface of the protection frame 709, which can reduce the deviation generated when the connection disk 706 rotates.

[0058] In this embodiment, the top of the sensor 5 is fixedly connected to the bottom of the pressure gauge body 2. The sensor 5 is used to monitor the gas pressure value in real time. The bottom of the sensor 5 is fixedly connected to the intelligent controller 6. The intelligent controller 6 and the sensor 5 are both arranged at the bottom of the pressure gauge body 2.

[0059] It should be noted that the sensor 5 is installed at the bottom of the pressure gauge body 2, and is used to monitor the gas pressure value in real time and transmit the monitoring data to the intelligent controller 6. The intelligent controller 6 is connected to the sensor 5, and automatically adjusts the temperature and pressure inside the pressure gauge body 2 according to the data transmitted by the sensor 5, to ensure that the pressure gauge body 2 works in the best state. The intelligent controller 6 can realize precise control of the gas pressure, thereby improving the accuracy and stability of the measurement of the pressure gauge body 2.

[0060] Example 2

[0061] This embodiment 2 provides a method for using a test gas circuit pressure gauge, which is used to further illustrate the working process or principle of the test gas circuit pressure gauge provided in the above embodiment 1, and the details are as follows:

[0062] A pressure gauge for a test gas circuit comprises the following steps:

[0063] S1, sensor 5 is installed at the bottom of the pressure gauge body 2, which is used to monitor the gas pressure value in real time and transmit the monitoring data to the intelligent controller 6. The intelligent controller 6 is connected with the sensor 5, and automatically adjusts the temperature and pressure inside the pressure gauge body 2 according to the data transmitted by the sensor 5, so as to ensure that the pressure gauge body 2 works in the best state. The intelligent controller 6 realizes precise control of the gas pressure, thereby improving the accuracy and stability of the measurement of the pressure gauge body 2;

[0064] S2. First, after the motor body 702 on the inner side of the side fixing frame 701 is started, the transmission rod 705 can be driven to rotate by the motor body 702. By using the opening of the limiting hole 704 on the surface of the temperature control box 703, the transmission rod 705 can pass through the inner side of the limiting hole 704 and drive the connection plate 706 to rotate. During the rotation process, the connection plate 706 will drive the fan 707 to rotate along the inner side of the inner bellows 708, and the surface of the connection plate 706 is limited by the connecting hole 7010 opened on the surface of the protective frame 709, which can reduce the deviation generated when the connection plate 706 rotates. The rotation of the fan fan 707 can generate wind and blow to the surface of the pressure gauge body 2. At the same time, the heat dissipation area of ​​the pressure gauge body 2 can be increased by using the multiple metal heat sinks 9014 on the surface of the pressure gauge body 2, thereby improving the heat dissipation effect of the wind generated by the fan fan 707 after blowing to the surface of the metal heat sink 9014, thereby improving the heat dissipation effect of the pressure gauge body 2, and improving the stability of the pressure gauge body 2 working in a high temperature environment;

[0065] S3. When the temperature is low, after the side temperature controller 801 is connected to the external power supply, the heating wire 804 on one side is driven by the side temperature controller 801 to start, and the heating wire 804 can be used to heat up, and the temperature of the heating wire 804 can be controlled by the side temperature controller 801. In the process of control by the side temperature controller 801, the voltage can be safely controlled by the safety monitor 802. When the temperature exceeds the maximum value, the power supply will be cut off for protection. At the same time, the temperature monitor 805 on one side of the temperature control box 703 can be used to monitor the temperature in the outer protection box 1 in real time, and the heating wire 804 can be driven by the side temperature controller 801 to adjust to the optimal temperature. After the heating wire 804 is controlled to heat up in the temperature control box 703, the heat generated will be blown to the surface of the pressure gauge body 2 as the fan 707 rotates. Therefore, when the ambient temperature is low, the heat generated by the heating wire 804 can be transferred to the surface of the pressure gauge body 2 to increase the temperature, which can reduce the inaccuracy of the measurement data of the pressure gauge body 2 at low temperatures and improve the stability of the work.

[0066] S4. At the same time, when the motor body 702 drives the transmission rod 705 to rotate, the rotation of the transmission rod 705 will drive the left transmission disc 902 to rotate. After the rotating left transmission disc 902 is engaged with the rack 903, the right transmission gear disc 904 can be synchronously driven to rotate under the rotation of the left transmission disc 902 through the connection of the rack 903. The rotating right transmission gear disc 904 will drive the connecting rod 905 to rotate. The rotating connecting rod 905 can be supported on the inner side of the side connecting frame 9015 by the fixed plate 906 through the socket connection with the movable hole 9016, which can improve the rotation stability of the connecting rod 905. The rotation of the connecting rod 905 will drive the left connecting gear disc 907 to rotate. Through the engagement of the left connecting gear disc 907 with the right connecting gear disc 908, When the left connecting toothed disc 907 rotates, the right connecting toothed disc 908 and the fixed rod 909 can be driven to rotate synchronously, and the fixed rod 909 will drive the transmission frame 9010 to rotate along one side of the pressure gauge body 2 during the rotation process. During the rotation process of the transmission frame 9010, the two side connecting plates 9011 will be driven to rotate along one side of the metal heat sink 9014. During the rotation, the surface of the metal heat sink 9014 can be cleaned by the cleaning brush 9012, and the dust and other particles accumulated on the surface of the metal heat sink 9014 can be cleaned, thereby improving the temperature conduction effect of the metal heat sink 9014, and when the fixed rod 909 rotates, it will be connected to one side of the pressure gauge body 2 through the bearing disc 9013, and the bearing disc 9013 can be used to improve the rotation stability of the fixed rod 909.

[0067] Example 3

[0068] like Figure 8The cleaning optimization method of the present invention introduces a path planning algorithm to optimize the movement path of the cleaning brush 9012, ensure the comprehensive cleaning of the metal heat sink 9014, and improve the cleaning efficiency;

[0069] Step 1: During the cleaning process, the dust accumulation on the surface of the metal heat sink 9014 and the position data of the cleaning brush 9012 are collected in real time by using sensors; the surface of the metal heat sink 9014 is modeled as a grid map, and each unit in the grid represents a cleaned area; the sensor data is used to determine the state of each grid unit (whether there is dust);

[0070] 1.1 Sensor Data Collection

[0071] In this embodiment, a combination of a laser sensor and a camera sensor is used to monitor the dust accumulation on the surface of the metal heat sink 9014 and the position data of the cleaning brush 9012 in real time; the laser sensor is used to measure the dust accumulation height and density; the camera sensor is used to identify the dust coverage area through image processing technology; the specific implementation steps are as follows

[0072] Laser sensor data collection: installed in front of the cleaning brush 9012, used to measure the dust accumulation height on each grid unit; the collected data includes the coordinates (x, y) of the grid unit and the dust accumulation height d;

[0073] Camera sensor data collection: installed on the top of the cleaning brush 9012, used to capture images of the surface of the metal heat sink 9014; through image processing algorithms (here, threshold segmentation and edge detection in the OpenCV library), the dust coverage of each grid cell is identified to generate a binary image;

[0074] Image(x, y) is a binary image describing the dust coverage of the grid cell (x, y);

[0075]

[0076] 1.2 Map Generation

[0077] The surface of the metal heat sink 9014 is modeled as a grid map, and each grid unit represents a cleaned area; the specific implementation steps are as follows

[0078] Initialize the grid map: create a two-dimensional array, each element represents the dust accumulation of a grid unit, the initial value is 0; GridMap[i][j] is the grid position; [i][j] is the horizontal and vertical coordinates; d represents the dust accumulation height on each grid unit;

[0079] GridMap[i][j]=0(0≤i,j<10)

[0080] Map sensor data to grid map: Map the data of laser sensor and camera sensor to the corresponding grid cells; Update the value of each cell in the grid map:

[0081]

[0082] Step 2 introduces A* algorithm and Dijkstra algorithm;

[0083] The implementation steps of the A* algorithm are as follows: set the starting position of the cleaning brush 9012 as the starting point, set the edge of the metal heat sink 9014 as the end point, establish an open list and a closed list; use the heuristic function h(n) to estimate the cost from the current node to the end point; the heuristic function here is the Manhattan distance; select the node with the lowest f(n) value from the open list (f(n) = g(n) + h(n)), g(n) is the actual cost from the starting point to the current node, and f(n) is the heuristic function value), move it to the closed list, expand its neighbor nodes, and update its cost value and parent node; when the end point is added to the closed list, trace back to the parent node to generate a cleaning path;

[0084] The implementation steps of the Di jkstra algorithm are as follows: set the starting position of the cleaning brush 9012 as the starting point, initialize the distance of each node to infinity, and the starting point distance to 0; select the node with the smallest distance from the unvisited nodes as the current node, update the distance value of its neighboring nodes, and if the new distance value is less than the current distance value, update it; when the end point is visited, trace the parent node in reverse to generate a cleaning path;

[0085] 2.1 Specific implementation of A* algorithm:

[0086] 2.1.1 Initialization

[0087] Starting point: the initial position of the cleaning brush 9012, denoted as (x start ,y start ), x start is the horizontal axis, y start is the vertical coordinate;

[0088] End point: the edge position of the metal heat sink 9014, denoted as (x goal ,y goal ), x goal ,y goal are the horizontal and vertical coordinates respectively;

[0089] Open List: contains the nodes that need to be evaluated, initially only containing the starting point;

[0090] OpenList = {(x start ,y star4 )}

[0091] Closed List: contains nodes that have been evaluated;

[0092] ClosedList = {}

[0093] g(n): the actual cost from the starting point to the current node n; g(x start ,y start )=0;

[0094] h(n): heuristic function, estimating the cost from the current node n to the end point; the heuristic function used here is Manhattan distance; x n and n is the position coordinate of the current node n

[0095] h(n)=|x n -x goal |+|y n -y goal |

[0096] f(n): evaluation function, defined as the total cost from the starting point through the current node to the end point;

[0097] f(n)=g(n)+h(n)

[0098] 2.1.2 Path Search

[0099] Select the node with the lowest f(n) value from the open list, move it from the open list to the closed list, and expand its neighbor nodes;

[0100]

[0101] OpenList = OpenList - {current}

[0102] ClosedList=ClosedList+{current}

[0103] Open List is an open list containing nodes that need to be evaluated, and initially only contains the starting point; ClosedList is a closed list containing nodes that have been evaluated; current is the node currently being processed; n represents the node;

[0104] For each neighbor node, calculate its g(n), h(n), and f(n) values; if the neighbor node is not in the closed list, or its new f(n) value is lower, update its cost value and parent node, and add it to the open list;

[0105] 2.1.3 Path Generation

[0106] When the endpoint is added to the closed list, trace back to the parent node to generate a clean path;

[0107] 2.2 Specific implementation of Dijkstra algorithm

[0108] 2.2.1 Initialization

[0109] Starting point: initial position of cleaning brush 9012;

[0110] Initialize the distance of each node and the starting point distance;

[0111] Unvisited Set: contains all nodes;

[0112] 2.2.2 Node Selection

[0113] Select the node with the smallest distance from the unvisited nodes as the current node;

[0114]

[0115] Where Unvisited is a set of all nodes that have not been visited or processed; Current is the currently processed node; arg min is a mathematical function, which represents the parameter that minimizes the value of an expression; N represents the node; distance(n) is the distance function in the Dijkstra algorithm, which represents the currently known shortest distance from the starting point to the node n;

[0116] Update the distance value of its neighbor node. If the new distance value is less than the current distance value, update it; then remove the current node from the unvisited set;

[0117] 2.2.3 Path Generation

[0118] When the end point is visited, the parent node is traced back to generate a clean path;

[0119] 2.3 Combining A* algorithm and Dijkstra algorithm

[0120] In order to plan the cleaning path more efficiently, the advantages of the A* algorithm and the Dijkstra algorithm are combined to make the path planning both heuristic and able to fully consider the dynamic weight adjustment to ensure the optimal path of the cleaning brush 9012 on the surface of the metal heat sink 9014; the specific steps are as follows:

[0121] The starting position of the cleaning brush 9012 is set as the starting point, and the edge of the metal heat sink 9014 is set as the end point; an open list and a closed list are established, and the distance of each node and the starting point distance are initialized at the same time; the heuristic function h(n) is used to estimate the cost from the current node to the end point; the heuristic function here is the Manhattan distance, and this step introduces the heuristic of the A* algorithm into the Dijkstra algorithm; the weight of the path is dynamically adjusted according to the data (dust accumulation degree) monitored in real time by the sensor; the weight parameter is introduced to make the cleaning brush give priority to cleaning areas with more dust accumulation, and this step introduces the dynamic weight adjustment of the Dijkstra algorithm into the A* algorithm; the node with the lowest f(n) value is selected from the open list, f(n) = g(n) + h(n), where g(n) is the actual cost from the starting point to the current node, and h(n) is the heuristic function value; the selected node is moved to the closed list, and its neighbor nodes are expanded, and its cost value and parent node are updated; combined with Dijkstra The node selection strategy of the Dijkstra algorithm optimizes the node selection process with the smallest distance among the unvisited nodes through the priority queue; when the end point is visited or added to the closed list, the parent node is traced back to generate a clean path; this step combines the heuristics of the A* algorithm and the global optimization characteristics of the Dijkstra algorithm;

[0122] 2.4 Improvement of A* Algorithm

[0123] In order to optimize the path planning of the cleaning brush 9012 on the surface of the metal heat sink 9014, the A* algorithm is improved in the following two aspects: dynamic heuristic function adjustment, that is, dynamically adjusting the heuristic function according to the real-time monitoring data of the sensor to make it more in line with the actual cleaning needs; introducing a cost function to consider dust accumulation, that is, when calculating g(n), introducing the degree of dust accumulation as a weight, so that the cleaning brush prioritizes cleaning areas with more dust accumulation;

[0124] Dynamic heuristic function adjustment: In the original A* algorithm, the heuristic function h(n) is a static estimate (Manhattan distance). In order to better reflect real-time changes, the heuristic function is dynamically adjusted according to sensor data to improve the accuracy and efficiency of path planning. The specific formula is derived as follows

[0125] Manhattan distance:

[0126] h(n)=|x n -x goal |+|y n -y goal |

[0127] where x n ,y n is the coordinate of the current node n; x goal ,y goalis the coordinate of the target node; h(n) is the heuristic function value, estimating the cost from the current node n to the target node;

[0128] Dynamic heuristic function: Introducing the dust accumulation degree d monitored in real time n ,The degree of dust accumulation is measured by sensors; the heuristic function is dynamically adjusted to take into account not only the distance but also the cleaning priority;

[0129] h′(n)=α·(|x n -x goal |+|y n -y goal |)+β·d n

[0130] Where α is the weight of the distance in the heuristic function; β is the weight of the dust accumulation degree in the heuristic function; d n is the dust accumulation level of the current node n, which is monitored by the sensor in real time; h′(n) is the dynamically adjusted heuristic function value, which estimates the cost from the current node n to the target node, taking into account the distance and the dust accumulation level;

[0131] The cost function is introduced to consider dust accumulation: when calculating the actual cost g(n) from the starting point to the current node, only the moving distance is considered; in order to improve the cleaning effect, the dust accumulation degree is introduced as a weight so that the cleaning brush prioritizes cleaning areas with more dust accumulation; the specific formula is derived as follows

[0132] Original cost function:

[0133] g(n)=g(parent(n))+cost(parent(n),n)

[0134] Where cost(parent(n), n) is the fixed cost of moving one unit; g(parent(n)) is the actual cost of the parent node; g(n) represents the actual cost from the starting point to the current node n;

[0135] Improved cost function: Introducing dust accumulation degree d n , making areas with more accumulation cheaper and given priority for cleaning;

[0136]

[0137] Where γ is the weight parameter of dust accumulation degree, which adjusts its influence; d n is the dust accumulation degree of the current node n, which is obtained by real-time monitoring by the sensor; g′(n) is the actual cost of the current node n after improvement, taking into account the dust accumulation degree;

[0138] 2.5 Improved Dijkstra algorithm

[0139] In order to optimize the path planning of the cleaning brush 9012 on the surface of the metal heat sink 9014, dynamic weight adjustment is introduced into the Dijkstra algorithm, and the weight of the path is dynamically adjusted according to the data monitored in real time by the sensor, so that it better meets the actual cleaning needs;

[0140] Introducing dynamic weight adjustment: In the traditional Dijkstra algorithm, the weights of all edges are fixed; in the patent content of this invention, the weight of the path is dynamically adjusted according to the dust accumulation situation monitored by the sensor in real time, so that the cleaning brush gives priority to cleaning the area with more dust accumulation; the specific formula is derived as follows: Original distance calculation:

[0141] distance(v)=min(distance(u)+cost(u,v))

[0142] Where cost(, v) is the fixed moving cost from node u to node v; distance(v) is the distance from the starting point to node v; distance(u) represents the currently known shortest distance from the starting point to node u;

[0143] Dynamic weight adjustment: Introducing real-time monitoring of dust accumulation v , adjust the weight of the path;

[0144]

[0145] Where γ is the weight parameter of dust accumulation degree, which adjusts its influence; d v is the dust accumulation degree of node v, which is monitored by the sensor in real time; distance′(v) represents the current known shortest distance from the starting point to node v after dynamic weight adjustment; distance(u) represents the current known shortest distance from the starting point to node u;

[0146] Step 3: The transmission rod 705 and the connecting rod 905 are driven by the motor to control the cleaning brush 9012 to clean along the planned path;

[0147] The cleaning system includes a motor, a transmission rod 705, a connecting rod 905 and a cleaning brush 9012 assembly; the motor drives the transmission rod 705 and the connecting rod 905 to control the cleaning brush 9012 to clean along the planned path; in order to ensure the efficiency and stability of the cleaning process, it is necessary to describe the specific steps of the path execution in detail and introduce corresponding parameter variables to optimize the execution process; the specific implementation steps are as follows

[0148] Path planning: The cleaning path is generated using a hybrid model of the improved A* algorithm and the improved Dijkstra algorithm;

[0149] Initialization of the motor and transmission rod: Set the initial position of the motor as the starting point, the transmission rod 705 and the connecting rod 905 are connected to the cleaning brush 9012, and ensure that the cleaning brush is at the starting position; calculate the initial speed and acceleration parameters of the motor

[0150] Transmission system control: Control the motor to drive the transmission rod 705 and the connecting rod 905, and gradually move the cleaning brush 9012 according to the nodes of the planned path; the moving time of each node is determined by the path length and the motor speed:

[0151]

[0152] where d i is the distance from the current node to the next node; v i is the speed of the motor at the current node; t i is the moving time of the i-th path;

[0153] Speed ​​and acceleration adjustment: To ensure smooth movement and effective cleaning, the speed and acceleration of the motor are adjusted appropriately at the beginning and end of each path; the acceleration of the motor on each path is a i

[0154] v i =v i-1 +a i ·t i

[0155] where v i is the speed of the motor on the i-th path; a i is the acceleration of the motor on the i-th path;

[0156] Cleaning effect monitoring: At each node, the sensor monitors the cleaning effect in real time, adjusts the motor speed and acceleration, and ensures the cleaning efficiency of the cleaning brush 9012 under different dust accumulation levels; sensor monitoring data:

[0157] dust i =d(x i ,y i )(The current node's dust accumulation level)

[0158] Where d(x i ,y i ) is the sensor at node (x i ,y i ) The dust accumulation level measured at i is the ash accumulation degree of the current node;

[0159] Adjust motor speed and acceleration to suit different cleaning needs:

[0160] v i=v base ·(1+γ·dust i )(New motor speed)

[0161] where v base is the base speed; γ is the influence weight of dust accumulation degree; v i It should be noted that the pressure gauge body 2, sensor 5, intelligent controller 6 and motor body 702 in the present invention are all prior art, and corresponding models can be selected according to actual needs. The internal structure and operating principle of the above parts are also common knowledge of those skilled in the art, and will not be elaborated on in detail.

[0162] Finally, it should be noted that the above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art can still modify the technical solutions described in the aforementioned embodiments or replace some of the technical features therein by equivalents. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention shall be included in the protection scope of the present invention.

Claims

1. A pressure gauge for a test gas circuit, comprising an outer protective box (1), characterized in that: A connecting valve body (3) is fixedly connected to one side of the outer protection box (1), a pipeline body (4) is provided on one side of the connecting valve body (3), a pressure gauge body (2) is provided on the other side of the connecting valve body (3), a side fixing frame (701) is fixedly connected to the inner side of the outer protection box (1), a temperature control box (703) is fixedly connected to one side of the side fixing frame (701), a motor body (702) is fixedly connected to the inner side of the side fixing frame (701), an output shaft of the motor body (702) is movably connected to a transmission rod (705), one end of the transmission rod (705) is fixedly connected to a connecting disk (706), one side of the connecting disk (706) is fixedly connected to a fan (707), and one side of the pressure gauge body (2) is fixedly connected to a metal heat sink (9014); The top of the sensor (5) is fixedly connected to the bottom of the pressure gauge body (2), the sensor (5) is used to monitor the gas pressure value in real time, the bottom of the sensor (5) is fixedly connected to an intelligent controller (6), and the intelligent controller (6) and the sensor (5) are both arranged at the bottom of the pressure gauge body (2); A side temperature controller (801) is fixedly connected to one side of the temperature control box (703), a safety monitor (802) is fixedly connected to the top of the side temperature controller (801), a side connection seat (803) is provided on one side of the side temperature controller (801), a heating wire (804) is movably connected to one side of the side connection seat (803), and a temperature monitor (805) is fixedly connected to the other side of the temperature control box (703); The surface of the transmission rod (705) is movably sleeved with a left transmission disc (902), one side of the left transmission disc (902) is movably connected with a rack (903), one side of the rack (903) is movably connected with a right transmission gear disc (904), one end of the right transmission gear disc (904) is fixedly connected with a connecting rod (905), one end of the connecting rod (905) is fixedly connected with a left connecting gear disc (907), one side of the left connecting gear disc (907) is movably connected with a right connecting gear disc (908), one side of the right connecting gear disc (908) is movably connected with a fixing rod (909), both sides of the fixing rod (909) are fixedly connected with a transmission square frame (9010), one side of the transmission square frame (9010) is fixedly connected with a side connecting plate (9011), and one side of the side connecting plate (9011) is movably connected with a cleaning brush (9012); A side connection frame (9015) is provided on one side of the outer protection box (1), a fixing plate (906) is fixedly connected to the inner side of the side connection frame (9015), a movable hole (9016) is provided on the surface of the fixing plate (906), and the inner side of the movable hole (9016) is movably connected to the surface of the connecting rod (905); An inner bellows (708) is provided on one side of the temperature control box (703), and a side connecting frame (901) is provided on one side of the inner bellows (708), wherein the inner side of the side connecting frame (901) is arranged on the surface of the rack (903).

2. A test gas circuit pressure gauge according to claim 1, characterized in that: One end of the fixing rod (909) is movably connected to a bearing disc (9013), and one side of the bearing disc (9013) is movably connected to one side of the pressure gauge body (2).

3. A test gas circuit pressure gauge according to claim 2, characterized in that: A limiting hole (704) is provided on one side of the temperature control box (703), and the inner side of the limiting hole (704) is movably connected to the surface of the transmission rod (705).

4. A test gas circuit pressure gauge according to claim 3, characterized in that: A protective frame (709) is fixedly connected to the inner side of the inner bellows (708), a connecting hole (7010) is opened on the inner side of the protective frame (709), and the inner side of the connecting hole (7010) is movably connected to the surface of the connecting plate (706).

5. An intelligent control method for a test gas circuit pressure gauge according to any one of claims 1 to 4, characterized in that: The steps include: S1. First, through the user interface or preset parameters, set the normal working range and alarm threshold of the gas pressure to ensure that the intelligent controller (6) and the sensor (5) establish a stable communication connection; S2, the intelligent controller (6) receives the gas pressure data sent by the sensor (5) in real time, and collects the ambient temperature and the equipment working temperature through the temperature monitor (805); S3, the intelligent controller (6) processes the received data, compares the processed data with a preset gas pressure range, and determines whether the current gas pressure value is within a normal range; S4, when the gas pressure value is within the normal range, the intelligent controller (6) continues to monitor the data without performing any operation. If the gas pressure value exceeds the normal range, the intelligent controller (6) starts the motor body (702) and controls the gas pressure by dissipating heat through the rotation of the fan (707). When the temperature is too low, the side thermostat (801) is started and the heating wire (804) is driven by the side thermostat (801) to start.

Images