Gas density relay and control system and method thereof

Abstract

The invention relates to the technical field of gas density relays, and discloses a gas density relay and a control system and method thereof, which solve the problems of gas density relays currently on the market. The gas density relay comprises a gas density relay body, one side of which is fixedly connected with a junction box; the right clamping pads on both sides of the gas density relay body are fitted with a right fixing ring, so that the stability of the gas density relay body during use can be improved, and the shaking of the gas density relay body can be reduced; the air circulation in the left protective box can be improved by generating wind force; at the same time, the calcium chloride drying block material is placed on the inner side of the material box, and the humid air on one side of the junction box is reduced through the cooperation of a transmission fan, so that the influence of moisture on the gas density relay body can be reduced, and the stability of the use environment of the gas density relay body can be improved; and the reciprocating brushing of a top cleaning brush can reduce the agglomeration or hardening of the calcium chloride desiccant due to long-term use.

Description

Technical Field

[0001] The present invention belongs to the technical field of gas density relays, and in particular relates to a gas density relay and a control system and method thereof. Background Art

[0002] Gas density relays achieve their functions by measuring changes in gas density. According to different working principles and application scenarios, gas density relays can be divided into many types, such as magnetic gas density relays, float-type gas density relays, vibration-type gas density relays, etc. Therefore, gas density relays are an important electrical device that monitors and controls gas pressure or density by measuring changes in gas density. In the field of industrial automation, gas density relays have broad application prospects.

[0003] In the prior art, the authorization publication number "CN111326369A" discloses a "gas density relay"; it includes an outer shell, a bellows, a seal, a sealing partition, a blocking bellows, a signal trigger mechanism, and a contact micro switch. The inner cavity of the outer shell or the inner cavity of the bellows is connected to the gas chamber of the electrical equipment, and the other inner cavity is filled with a compensating gas. When the gas density value in the gas chamber of the electrical equipment changes, a pressure difference is generated between the inner cavity of the outer shell and the inner cavity of the bellows. Under the action of pressure, the bellows will expand or be compressed, and the bellows will move up and down, which will drive the trigger rod connected to it to move up and down. When the trigger rod moves, it will trigger the contact micro switch, and the contact micro switch will generate a corresponding signal to realize the function of the gas density relay; when the gas density value returns to normal, the contact micro switch is reset. The trigger rod can be slidably connected to the sealing partition and extends out of the sealing partition, which improves the movement stability of the trigger rod and avoids the problem of reducing the monitoring accuracy due to the swing of the trigger rod.

[0004] The above-mentioned "a gas density relay" still has some disadvantages. For example, during the use of the gas density relay, moisture will cause problems in the internal circuit of the gas density relay, increase the operation and maintenance pressure, and threaten the safe operation of the power system. At the same time, poor ventilation causes the internal temperature of the relay to rise, thereby affecting its performance and accuracy. Frequent shaking causes the internal components of the relay to loosen or be damaged, affecting its normal operation.

[0005] For this reason, a gas density relay and a control system thereof are proposed here to solve the above-mentioned problems. Summary of the invention

[0006] In view of the above situation, in order to overcome the defects of the prior art, the present invention provides a gas density relay and a control system and method thereof, which effectively solves the problem that the moisture generated in the gas density relay on the market can cause problems and defects in the internal circuit of the gas density relay, increase the operation and maintenance pressure, and threaten the safe operation of the power system. At the same time, poor ventilation causes the internal temperature of the relay to rise, thereby affecting its performance and accuracy, and frequent shaking causes the internal components of the relay to loosen or be damaged, affecting its normal operation.

[0007] To achieve the above-mentioned objectives, the present invention provides the following technical solutions: a gas density relay, comprising a gas density relay body, one side of the gas density relay body is fixedly connected to a junction box, one side of the gas density relay body is movably connected to a left clamping pad, one side of the left clamping pad is movably connected to a left fixing ring, one side of the left fixing ring is fixedly connected to a left connecting block, one side of the left connecting block is fixedly connected to a left supporting frame, one side of the left supporting frame is fixedly connected to a left protective box, one side of the left protective box is movably connected to an electric push rod, one side of the electric push rod is provided with a connecting plate, one side of the connecting plate is fixedly connected to a right supporting frame, one side of the right supporting frame is fixedly connected to a right protective box, one side of the right supporting frame is fixedly connected to a right connecting block, one side of the right connecting block is fixedly connected to a right fixing ring, and one side of the right fixing ring is movably connected to the right clamping pad.

[0008] Preferably, a motor body is fixedly connected to the inner side of the left protection box, a transmission rod is movably connected to the output shaft of the motor body, and a transmission fan is fixedly connected to one end of the transmission rod.

[0009] Preferably: the inner side of the left protective box is fixedly connected to an inner fixing frame, the inner side of the inner fixing frame is fixedly connected to a limiting frame, the inner side of the limiting frame is movably sleeved on one side of the transmission fan, one side of the limiting frame is fixedly connected to a protective net, and one side of the protective net is parallel and juxtaposed with one side of the limiting frame.

[0010] Preferably: a top transmission gear plate is fixedly connected to the surface of the transmission rod, a rack is movably connected to one side of the top transmission gear plate, a bottom transmission gear plate is movably connected to one side of the rack, a side connecting rod is fixedly connected to one side of the bottom transmission gear plate, one end of the side connecting rod is fixedly connected to an engaging gear plate, one side of the engaging gear plate is movably connected to a movable gear plate, one side of the movable gear plate is fixedly connected to a fixed rod, one side of the fixed rod is fixedly connected to a special-shaped gear plate, one side of the left protective box is fixedly connected to a limiting slide rail, the inner side of the limiting slide rail is slidably connected to an annular rail, a top gear rail is arranged on the top of the annular rail, and a bottom gear rail is arranged on the bottom of the annular rail.

[0011] Preferably: the top of the annular rail is fixedly connected to a top fixing frame, the top of the top fixing frame is fixedly connected to a material box, the top of the material box is slidably connected to a top fixing cover, the inner side of the top fixing cover is movably connected to a top cleaning brush, the bottom of the top fixing cover is provided with a sliding top rail, the surface of the material box is fixedly connected to a sliding plate, and one side of the sliding plate is slidably connected to the inner side of the sliding top rail.

[0012] Preferably: both the surface of the material box and the surface of the top fixed cover are provided with communication holes, and the number of the communication holes is multiple.

[0013] Preferably, a guide rod is fixedly connected to one side of the right support frame, a guide rail is provided on one side of the left support frame, and the inner side of the guide rail is slidably connected to the surface of the guide rod.

[0014] Preferably, a limiting plate is fixedly connected to the inner side of the left protection box, a limiting hole is provided on the surface of the limiting plate, and the inner side of the limiting hole is movably connected to the surface of the side connecting rod.

[0015] A gas density relay and its control system include a control box, one side of the junction box is fixedly connected with the control box, the control box includes a sensor module and a control module, the sensor module is used to measure the density of gas or liquid in real time, and the control module receives the electrical signal output by the sensor module.

[0016] Preferably, the control box further includes a communication module and a power supply module, wherein the communication module is used to transmit measurement data and control signals, and the power supply module provides a stable power supply for the entire system.

[0017] Preferred: Gas density relay and control method thereof, an intelligent algorithm is introduced into the system to achieve more efficient control and monitoring; the specific steps are as follows:

[0018] 1. Sensor layout and data collection

[0019] Sensor arrangement:

[0020] Gas density sensor: arranged in the gas density relay body, used to monitor gas density in real time;

[0021] Temperature sensor: arranged in the relay body and protection box to monitor the internal temperature;

[0022] Humidity sensor: arranged in the relay body and protection box to monitor the internal humidity;

[0023] Acceleration sensor: arranged on the relay body, used to monitor the vibration of the equipment;

[0024] Data collection:

[0025] Acquisition frequency: All sensors collect data at the same frequency. Collect data;

[0026] The collected data include: gas density ,temperature ,humidity , vibration data ;

[0027] 2. Data Preprocessing

[0028] Data cleaning and noise reduction:

[0029] Use the sliding average filter algorithm to reduce the noise of the collected data and eliminate instantaneous interference;

[0030] ;

[0031] in, represents the data after noise reduction, Represents the original data, is the sliding window size;

[0032] Data Standardization:

[0033] Normalize the processed data to meet the input requirements of deep neural networks;

[0034] ;

[0035] in, represents the standardized data, is the data mean, is the data standard deviation;

[0036] 3. Two-layer reinforcement learning algorithm

[0037] 1. High-Level Reinforcement Learning

[0038] (1) High-level state definition

[0039] High-level status Including gas density, temperature, humidity, vibration data:

[0040] ;

[0041] (2) High-level action definition

[0042] High-level actions Includes selection subtasks:

[0043] ;

[0044] (3) High-level reward function

[0045] High-Level Reward Function Measuring the achievement of overall objectives:

[0046] ;

[0047] in, It is a high-level reward function that measures the degree of achievement of the overall goal; is the current time step; is the weight coefficient, which is used to measure the importance of distance deviation; is the distance measurement value of the current time step; is the target distance; is the weight coefficient, which is used to measure the importance of temperature deviation; is the temperature measurement value of the current time step; is the optimal temperature; is the weight coefficient, which is used to measure the importance of height deviation; is the height measurement at the current time step; is the weight coefficient, which is used to measure the importance of volume deviation; is the volume measurement value of the current time step;

[0048] (4) High-level Q-value function

[0049] Update of high-level Q-value function:

[0050] ;

[0051] in, is a high-level Q-value function, indicating that in state Take action The obtained Q value, parameter is Current time step high-level status; is the current time step High-level actions; is the parameter of the high-level Q-value function; is the current time step The high-level reward value; Discount factor, which measures the impact of future rewards on the current Q value, usually between 0 and 1 is the state at the next time step t+1 All possible actions The maximum value of the medium Q value;

[0052] (5) High-level policy network

[0053] Input: High-level status ;

[0054] Output: Q value of each high-level action

[0055] Loss function:

[0056] ;

[0057] in, is the loss function of the high-level policy network, which represents the prediction error of the Q-value function; is the parameter of the high-level Q-value function; It is the expected value operation, which represents the average of all samples; is the high-level reward value at the current time step t; is the discount factor, which measures the impact of future rewards on the current Q value. is the state at the next time step t+1 All possible actions The maximum value of the medium Q value; is the state at the current time step t Next, take action The Q value obtained;

[0058] Parameter update:

[0059] ;

[0060] in, is the parameter of the high-level Q-value function; is the learning rate, which controls the step size of parameter update; is the loss function Parameters The gradient of

[0061] 2. Low-level reinforcement learning

[0062] (1) Low-level state definition

[0063] Low level status Includes gas density, temperature, humidity, vibration data and high-level actions:

[0064] ;

[0065] in

[0066] (2) Low-level action definition

[0067] Low-level actions Including specific execution actions:

[0068] ;

[0069] in, Indicates the adjustment of the electric push rod. Indicates the switch of the transmission fan. Indicates the working intensity of the transmission fan;

[0070] (3) Low-level reward function

[0071] Low-level reward function Measure the performance of subtasks:

[0072] ;

[0073] in, It is a high-level reward function that measures the degree of achievement of the overall goal; is the current time step; is the weight coefficient, which is used to measure the importance of distance deviation; is the distance measurement value of the current time step; is the target distance; is the weight coefficient, which is used to measure the importance of temperature deviation; is the temperature measurement value of the current time step; is the optimal temperature; is the weight coefficient, which is used to measure the importance of height deviation; is the height measurement at the current time step; is the weight coefficient, which is used to measure the importance of volume deviation; is the volume measurement value of the current time step;

[0074] (4) Low-level strategy network

[0075] Input: Low level status ;

[0076] Output: Q value of each low-level action

[0077] Loss function:

[0078] ;

[0079] in, is the loss function of the low-level policy network, which represents the prediction error of the Q-value function; is the parameter of the low-level Q-value function; It is the expected value operation, which represents the average of all samples; is the low-level reward value at the current time step t; is the discount factor, which measures the impact of future rewards on the current Q value. is the state at the next time step t+1 All possible actions The maximum value of the medium Q value; is the state at the current time step t Next, take action The Q value obtained;

[0080] Parameter update:

[0081] ;

[0082] in, is the parameter of the low-level Q-value function; is the learning rate, which controls the step size of parameter update; is the loss function Parameters The gradient of

[0083] 3. Two-layer reinforcement learning steps

[0084] (1) Initialization:

[0085] Initialize high-level and low-level policy network parameters and ;

[0086] Initialize high-level and low-level experience replay pools;

[0087] (2) State observation:

[0088] Collect sensor data to build the current high-level state and low-level status ;

[0089] (3) High-level strategy selection subtask:

[0090] The high-level strategy selects subtasks based on the current high-level state ;

[0091] ;

[0092] in, is a high-level policy function, which represents the strategy for selecting actions from the current high-level state;

[0093] (4) Low-level policy execution actions:

[0094] The low-level strategy selects specific actions based on the current low-level state and high-level actions ;

[0095] ;

[0096] in, is the low-level strategy function, which represents the strategy of selecting a specific action based on the current low-level state and high-level action;

[0097] (5) Execution action:

[0098] Execute an action , and observe the next state and , as well as high-level and low-level rewards ;

[0099] (6) Storage experience:

[0100] Will Stored in high-level experience replay pool;

[0101] Will Deposit into the low-level experience replay pool;

[0102] (7) Experience replay and update:

[0103] Randomly draw samples from the high-level experience replay pool and update the high-level policy network parameters ;

[0104] Randomly draw samples from the low-level experience replay pool and update the low-level policy network parameters ;

[0105] (8) Update the target network regularly:

[0106] Every few steps, the high-level and low-level strategy network parameters are and to the respective target network.

[0107] Compared with the prior art, the present invention has the following beneficial effects:

[0108] 1) During the operation of the gas density relay and its control system, the right clamping pads and the right fixing rings on both sides of the gas density relay body are fitted together to improve the stability of the gas density relay body during use, reduce the shaking of the gas density relay body, and improve the accuracy of the gas density relay body in gas density pressure monitoring;

[0109] 2) When the gas density relay and its control system are working, the rotating transmission fan generates wind along the limit frame, which can improve the air circulation in the left protection box and the air circulation on the side of the junction box, thereby reducing the influence of humid air on one side of the junction box entering the gas density relay along the connecting back plate between the junction box and the gas density relay body, and improving the stability of the operation of the gas density relay body;

[0110] 3) During the operation of the gas density relay and its control system, by adding calcium chloride dry block materials into the material box, the calcium chloride dry block materials are placed inside the material box, and the moist air will react with the calcium chloride dry block materials along the connecting holes, and the wind force generated by the rotation of the transmission fan will be reduced, thereby reducing the moist air on one side of the junction box, reducing the influence of moisture on the gas density relay body, and improving the stability of the use environment of the gas density relay body;

[0111] 4) During the operation of the gas density relay and its control system, the calcium chloride desiccant will form certain crystals or precipitates after absorbing moisture. The reciprocating brushing of the top cleaning brush can reduce the agglomeration or hardening of the calcium chloride desiccant due to long-term use, thereby extending its service life and use effect. At the same time, the movement of the material box will drive the sliding plate to slide along the inner side of the sliding top rail, which can improve the stability of the movement of the material box.

[0112] 5) In the operation of the gas density relay and its control system, the double-layer reinforcement learning algorithm can adjust the working state in advance by real-time monitoring and predicting the changes in gas density, avoiding system failures caused by sudden changes in gas density. It improves the adaptability and response speed of the gas density relay and enhances the stability and reliability of the system.

[0113] 6) In the work of the gas density relay and its control system, the double-layer reinforcement learning algorithm realizes adaptive control of complex environments through the synergy of high-level strategies and low-level strategies. It improves the adaptability of the equipment under different environmental conditions and ensures its reliability and accuracy under various working conditions. BRIEF DESCRIPTION OF THE DRAWINGS

[0114] 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:

[0115] Figure 1 It is a schematic diagram of the overall appearance structure of the present invention;

[0116] Figure 2 It is a schematic diagram of the structure of the control box of the present invention;

[0117] Figure 3 It is a schematic diagram of the structure of the right support frame of the present invention;

[0118] Figure 4 It is a schematic diagram of the structure of the left protection box of the present invention;

[0119] Figure 5 It is a schematic diagram of the structure of the left protection box of the present invention;

[0120] Figure 6It is a schematic diagram of the side connecting rod structure of the present invention;

[0121] Figure 7 It is a schematic diagram of the top fixed cover structure of the present invention;

[0122] Figure 8 This is a flow chart of the intelligent algorithm of the present invention.

[0123] In the figure: 1, gas density relay body; 2, junction box; 3, control box; 401, left fixing ring; 402, left clamping pad; 403, left connecting block; 404, left supporting frame; 405, left protective box; 406, electric push rod; 407, connecting plate; 408, guide rod; 409, guide rail; 4010, right protective box; 4011, right supporting frame; 4012, right connecting block; 4013, right fixing ring; 4014, right clamping pad; 501, inner fixing frame; 502, limit frame; 503, transmission fan; 504, motor body; 505, transmission rod; 506, electric push rod; 5 ...6, electric push rod; 506, electric push rod; 506, electric push rod; 507, electric push rod; 508, electric push rod; 509, electric push rod; 5010, electric push rod; 5011, electric push rod; 5012, electric push rod; 5013, electric push rod; 5014, electric push rod; 5015, electric push rod; 5016, electric push rod; 5017, electric push rod; 5018, electric push rod; 5019, electric push rod; 502 6. Protective net; 601. Top transmission gear disc; 602. Rack; 603. Bottom transmission gear disc; 604. Side connecting rod; 605. Limiting plate; 606. Limiting hole; 607. Engaging gear disc; 608. Movable gear disc; 609. Fixing rod; 6010. Special-shaped gear disc; 6011. Annular rail; 6012. Bottom gear rail; 6013. Top gear rail; 6014. Top fixing frame; 6015. Material box; 6016. Sliding plate; 6017. Connecting hole; 6018. Top fixing cover; 6019. Sliding top rail; 6020. Top cleaning brush; 6021. Limiting slide rail. DETAILED DESCRIPTION

[0124] 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. Example 1

[0125] In this embodiment, Figure 1-Figure 7 Given, the present invention provides the following technical solutions:

[0126] A gas density relay and a control system thereof, comprising a gas density relay body 1, a junction box 2 being fixedly connected to one side of the gas density relay body 1, a left clamping pad 402 being movably connected to one side of the gas density relay body 1, a left fixing ring 401 being movably connected to one side of the left clamping pad 402, a left connecting block 403 being fixedly connected to one side of the left connecting block 403, a left supporting frame 404 being fixedly connected to one side of the left supporting frame 404, a left protective box 405 being fixedly connected to one side of the left supporting frame 404, One side of the left protective box 405 is movably connected with an electric push rod 406, one side of the electric push rod 406 is provided with a connecting plate 407, one side of the connecting plate 407 is fixedly connected with a right support frame 4011, one side of the right support frame 4011 is fixedly connected with a right protective box 4010, one side of the right support frame 4011 is fixedly connected with a right connecting block 4012, one side of the right connecting block 4012 is fixedly connected with a right fixing ring 4013, and one side of the right fixing ring 4013 is movably connected with a right clamping pad 4014.

[0127] It should be noted that, by fitting the right clamping pad 4014 and the right fixing ring 4013 on both sides of the gas density relay body 1, the stability of the gas density relay body 1 during use can be improved, the shaking of the gas density relay body 1 can be reduced, and the accuracy of the gas density relay body 1 in gas density pressure monitoring can be improved.

[0128] In this embodiment, a motor body 504 is fixedly connected to the inner side of the left protection box 405 , a transmission rod 505 is movably connected to the output shaft of the motor body 504 , and a transmission fan 503 is fixedly connected to one end of the transmission rod 505 .

[0129] It should be noted that the rotated transmission rod 505 can drive the transmission fan 503 to rotate, and by movably sleeved on the inner side of the limiting frame 502, the rotating transmission fan 503 can generate wind along the limiting frame 502, and the generated wind can improve the air circulation in the left protective box 405.

[0130] In this embodiment, the inner side of the left protective box 405 is fixedly connected to an inner fixing frame 501, the inner side of the inner fixing frame 501 is fixedly connected to a limiting frame 502, the inner side of the limiting frame 502 is movably sleeved on one side of the transmission fan 503, one side of the limiting frame 502 is fixedly connected to a protective net 506, and one side of the protective net 506 is arranged parallel to one side of the limiting frame 502.

[0131] It should be noted that the protective net 506 can reduce the contact between external debris and the transmission fan 503.

[0132] In this embodiment, a top transmission gear disc 601 is fixedly connected to the surface of the transmission rod 505, a rack 602 is movably connected to one side of the top transmission gear disc 601, a bottom transmission gear disc 603 is movably connected to one side of the rack 602, a side connecting rod 604 is fixedly connected to one side of the bottom transmission gear disc 603, one end of the side connecting rod 604 is fixedly connected to an engaging gear disc 607, one side of the engaging gear disc 607 is movably connected to a movable gear disc 608, one side of the movable gear disc 608 is fixedly connected to a fixed rod 609, one side of the fixed rod 609 is fixedly connected to a special-shaped gear disc 6010, one side of the left protective box 405 is fixedly connected to a limiting slide rail 6021, the inner side of the limiting slide rail 6021 is slidably connected to a ring rail 6011, a top gear rail 6013 is provided at the top of the ring rail 6011, and a bottom gear rail 6012 is provided at the bottom of the ring rail 6011.

[0133] It should be noted that the rotating special-shaped toothed disc 6010 contacts the bottom rack 6012 and the top rack 6013 in the annular rail 6011 respectively. When the tooth surface of the special-shaped toothed disc 6010 contacts the tooth surface of the bottom rack 6012, the special-shaped toothed disc 6010 will push the annular rail 6011 to move horizontally toward one side. When the tooth surface of the special-shaped toothed disc 6010 contacts the tooth surface of the top rack 6013, the special-shaped toothed disc 6010 will push the annular rail 6011 to move horizontally toward the other side. Through the continuous rotation of the special-shaped toothed disc 6010, the annular rail 6011 can be driven to move reciprocatingly horizontally.

[0134] In this embodiment, the top of the annular rail 6011 is fixedly connected to a top fixing frame 6014, the top of the top fixing frame 6014 is fixedly connected to a material box 6015, the top of the material box 6015 is slidably connected to a top fixing cover 6018, the inner side of the top fixing cover 6018 is movably connected to a top cleaning brush 6020, a sliding top rail 6019 is provided at the bottom of the top fixing cover 6018, and a sliding plate 6016 is fixedly connected to the surface of the material box 6015, and one side of the sliding plate 6016 is slidably connected to the inner side of the sliding top rail 6019.

[0135] It should be noted that, during the movement of the material box 6015 , the sliding plate 6016 will be driven to slide along the inner side of the sliding top rail 6019 , which can improve the stability of the movement of the material box 6015 .

[0136] In this embodiment, the surface of the material box 6015 and the surface of the top fixed cover 6018 are both provided with communication holes 6017 , and the number of the communication holes 6017 is plural.

[0137] It should be noted that the moist air will react with the calcium chloride dry block material along the connecting hole 6017 and generate wind force through the rotation of the transmission fan 503, thereby reducing the moist air on one side of the junction box 2 and improving the stability of the use environment of the gas density relay body 1.

[0138] In this embodiment, a guide rod 408 is fixedly connected to one side of the right support frame 4011 , and a guide rail 409 is provided on one side of the left support frame 404 , and the inner side of the guide rail 409 is slidably connected to the surface of the guide rod 408 .

[0139] It should be noted that when the right protective box 4010 moves horizontally along one side of the left protective box 405, the movement of the right protective box 4010 will drive the guide rod 408 to slide along the inner side of the guide rail 409. The sliding of the guide rod 408 along the guide rail 409 can improve the stability of the movement of the right protective box 4010 and reduce the deviation generated when the right protective box 4010 moves.

[0140] In this embodiment, a limiting plate 605 is fixedly connected to the inner side of the left protection box 405 , a limiting hole 606 is provided on the surface of the limiting plate 605 , and the inner side of the limiting hole 606 is movably connected to the surface of the side connecting rod 604 .

[0141] It should be noted that the rotating bottom transmission gear plate 603 will drive the side connecting rod 604 to rotate, and during the rotation of the side connecting rod 604, it will be supported and limited by the limiting holes 606 opened on the surface of the limiting plate 605, which can improve the stability of the side connecting rod 604 during rotation.

[0142] The gas density relay and its control system include a control box 3. The control box 3 is fixedly connected to one side of the junction box 2. The control box 3 includes a sensor module and a control module. The sensor module is used to measure the density of gas or liquid in real time. The control module receives the electrical signal output by the sensor module.

[0143] It should be noted that the control module processes and analyzes the signal through the built-in intelligent control algorithm. According to the analysis results, the control module can output control signals to adjust the operating status of related equipment to achieve the regulation of gas or liquid density. At the same time, the sensor module adopts a high-precision and high-sensitivity design, which can quickly respond to changes in density and convert the measurement results into electrical signal output.

[0144] In this embodiment, the control box 3 further includes a communication module and a power module. The communication module is used to transmit measurement data and control signals, and the power module provides a stable power supply for the entire system.

[0145] It should be noted that the power module can ensure the normal operation of the system, and the communication module supports a variety of communication protocols and interfaces, making it convenient for users to exchange data and perform remote control. Example 2

[0146] This embodiment 2 provides a method for using a gas density relay, which is used to further illustrate the working process or principle of the gas density relay provided in the above embodiment 1, and the details are as follows:

[0147] The method of using the gas density relay includes the following steps:

[0148] S1. During the installation of the gas density relay body 1, first, after the left clamping pad 402 is fitted and fixed to one side of the gas density relay body 1, the left clamping pad 402 can be limited by the left fixing ring 401. At this time, after the left connecting block 403 and the electric push rod 406 on the left support frame 404 are started, the connecting plate 407 is driven to move by the electric push rod 406, and the connecting plate 407 can be driven to move horizontally, thereby driving the right connecting block 4012 on the right support frame 4011 to move, and the right fixing ring 4013 and the right clamping pad 4014 are fixed by the right connecting block 4012, so that the right clamping pad 4014 can be driven to move continuously and fit with the other side of the gas density relay body 1. At this time, the right clamping pad 4014 on both sides of the gas density relay body 1 fits with the right fixing ring 4013, so that the stability of the gas density relay body 1 during use can be improved, the shaking of the gas density relay body 1 can be reduced, and the accuracy of the gas density relay body 1 in gas density pressure monitoring can be improved;

[0149] S2. After the motor body 504 in the left protection box 405 is started, the motor body 504 can be used to drive the transmission rod 505 to rotate. The rotated transmission rod 505 can drive the transmission fan 503 to rotate. The transmission fan 503 is movably sleeved on the inner side of the limit frame 502. The rotating transmission fan 503 can generate wind along the limit frame 502. The wind can improve the air circulation in the left protection box 405 and the air circulation on one side of the junction box 2. The damp air on one side of the junction box 2 enters the gas density relay body 1 along the connection back plate between the junction box 2 and the gas density relay body 1. The stability of the operation of the gas density relay body 1 is improved.

[0150] S3, when the right support frame 4011 is pushed outward by the electric push rod 406, the movement of the right protective box 4010 will drive the synchronous movement of the top fixed cover 6018, so that the top fixed cover 6018 can be moved horizontally along the top of the material box 6015. At this time, the top of the material box 6015 is opened by the movement of the top fixed cover 6018, and the calcium chloride dry block material is added into the material box 6015. The calcium chloride dry block material is used on the inner side of the material box 6015. The humid air will react with the calcium chloride dry block material along the connecting hole 6017, and the wind force generated by the transmission fan 503 after rotation is reduced. The humid air on one side of the junction box 2 can be reduced, which can reduce the influence of moisture on the gas density relay body 1 and improve the stability of the use environment of the gas density relay body 1.

[0151] S4. At the same time, when the motor body 504 drives the transmission rod 505 to rotate, the rotation of the transmission rod 505 will drive the top transmission gear plate 601 to rotate, and the rotating top transmission gear plate 601 will drive the rack 602 to move synchronously. Through the engagement of the rack 602, the bottom transmission gear plate 603 can be driven to rotate synchronously when the top transmission gear plate 601 rotates. The rotating bottom transmission gear plate 603 will drive the side connecting rod 604 to rotate, and during the rotation of the side connecting rod 604, it will be supported and limited by the limiting hole 606 on the surface of the limiting plate 605. The rotating side connecting rod 604 will drive the meshing gear disc 607 to rotate, and the rotating meshing gear disc 607 will drive the movable gear disc 608 to rotate synchronously. The rotating movable gear disc 608 will drive the fixed rod 609 and drive the special-shaped gear disc 6010 to rotate, and the rotating special-shaped gear disc 6010 will contact the bottom rack 6012 and the top rack 6013 in the annular track 6011 respectively. When the tooth surface of the special-shaped gear disc 6010 contacts the tooth surface of the bottom rack 6012, the special-shaped gear disc 6010 will push the annular track 6011 to move horizontally toward one side, and through the special-shaped gear disc When the tooth surface of 6010 contacts the tooth surface of the top gear rail 6013, the special-shaped toothed disc 6010 will push the annular rail 6011 to move horizontally toward the other side. The continuous rotation of the special-shaped toothed disc 6010 can drive the annular rail 6011 to move reciprocatingly horizontally, and the annular rail 6011 will slide along the inner side of the limit slide rail 6021 during the reciprocating horizontal movement to improve stability and support. Through the connection of the top fixed frame 6014, the material box 6015 can be driven to move reciprocatingly under the reciprocating motion of the annular rail 6011, and the material box 6015 can be moved along the top fixed cover 6021 through the material box 6015. The inner side of the brush 6018 can reciprocate to keep the surface of the calcium chloride material in the material box 6015 in reciprocating contact with the top cleaning brush 6020. The calcium chloride desiccant will form certain crystals or precipitates after absorbing moisture. The reciprocating brushing of the top cleaning brush 6020 can reduce the agglomeration or hardening of the calcium chloride desiccant due to long-term use, thereby extending its service life and use effect. At the same time, the material box 6015 will drive the sliding plate 6016 to slide along the inner side of the sliding top rail 6019 during the movement, which can improve the stability of the movement of the material box 6015.

[0152] It should be noted that the gas density relay body 1, junction box 2, control box 3, motor body 504 and electric push rod 406 in the present invention are all prior arts, 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 technicians in this field, and no further elaboration will be made on this.

[0153] Finally, it should be noted that the above 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. Example 3

[0154] 1. Sensor data collection

[0155] Assume that the sensor data at a certain moment is as follows:

[0156] Gas density sensor data ;

[0157] Temperature sensor data ;

[0158] Humidity sensor data ;

[0159] Vibration data ;

[0160] 2. Data Preprocessing

[0161] Data cleaning and noise reduction:

[0162] Use the sliding average filtering algorithm to downsample the original data (assuming the sliding window size is 5);

[0163] ;

[0164] Data Standardization:

[0165] Standardize the data using the mean and standard deviation (assuming the mean and standard deviation are as follows)

[0166] Mean gas density , standard deviation ;

[0167] Temperature mean , standard deviation ;

[0168] Humidity mean , standard deviation ;

[0169] Vibration mean , standard deviation ;

[0170] Standardized data:

[0171] ;

[0172] 3. High-level strategy selection subtask

[0173] High-level state definitions:

[0174] ;

[0175] High-level action selection:

[0176] Assume that the action selected by the high-level policy network is To “control temperature and humidity”;

[0177] 4. Low-level policy execution actions

[0178] Low level state definitions:

[0179] ;

[0180] Low-level action selection:

[0181] Assume that the specific action chosen by the low-level policy network "The transmission fan switch is turned on, the working intensity is medium, and the electric push rod is adjusted to the medium position."

[0182] 5. Execute actions

[0183] The transmission fan is on, with medium working intensity;

[0184] The electric push rod is adjusted to the medium position;

[0185] 6. Reward Calculation

[0186] Assume that the sensor data observed at the next moment is:

[0187] ;

[0188] High-level reward function:

[0189] ;

[0190] Assumptions ; and the weight coefficient ;

[0191] ;

[0192] ;

[0193] Low-level reward function:

[0194] ;

[0195] Assume that the weight coefficient of the lower layer ;

[0196] ;

[0197] ;

[0198] 7. Experience storage and update

[0199] Experience and Stored in high-level and low-level experience replay pools respectively;

[0200] 8. Policy network parameter update

[0201] High-level strategic network updates:

[0202] ;

[0203] Low-level policy network updates:

[0204] .

Claims

1. A gas density relay, comprising a gas density relay body (1), characterized in that: One side of the gas density relay body (1) is fixedly connected to a junction box (2); one side of the gas density relay body (1) is movably connected to a left clamping pad (402); one side of the left clamping pad (402) is movably connected to a left fixing ring (401); one side of the left fixing ring (401) is fixedly connected to a left connecting block (403); one side of the left connecting block (403) is fixedly connected to a left supporting frame (404); one side of the left supporting frame (404) is fixedly connected to a left protective box (405); one side of the left protective box (405) is movably connected to a left fixing ring (401); An electric push rod (406) is connected, a connecting plate (407) is provided on one side of the electric push rod (406), a right support frame (4011) is fixedly connected to one side of the connecting plate (407), a right protective box (4010) is fixedly connected to one side of the right support frame (4011), a right connecting block (4012) is fixedly connected to one side of the right supporting frame (4011), a right fixing ring (4013) is fixedly connected to one side of the right fixing ring (4013), and a right clamping pad (4014) is movably connected to one side of the right fixing ring (4013); A motor body (504) is fixedly connected to the inner side of the left protection box (405); a transmission rod (505) is movably connected to the output shaft of the motor body (504); and a transmission fan (503) is fixedly connected to one end of the transmission rod (505); The inner side of the left protection box (405) is fixedly connected to an inner fixing frame (501), the inner side of the inner fixing frame (501) is fixedly connected to a limiting frame (502), the inner side of the limiting frame (502) is movably sleeved on one side of the transmission fan (503), one side of the limiting frame (502) is fixedly connected to a protection net (506), and one side of the protection net (506) is arranged parallel to one side of the limiting frame (502).

2. The gas density relay according to claim 1, characterized in that: A top transmission gear disc (601) is fixedly connected to the surface of the transmission rod (505); a rack (602) is movably connected to one side of the top transmission gear disc (601); a bottom transmission gear disc (603) is movably connected to one side of the rack (602); a side connecting rod (604) is fixedly connected to one side of the bottom transmission gear disc (603); one end of the side connecting rod (604) is fixedly connected to a meshing gear disc (607); and one side of the meshing gear disc (607) is movably connected to a movable gear disc (608). One side of the movable toothed disc (608) is fixedly connected to a fixed rod (609), one side of the fixed rod (609) is fixedly connected to a special-shaped toothed disc (6010), one side of the left protective box (405) is fixedly connected to a limiting slide rail (6021), the inner side of the limiting slide rail (6021) is slidably connected to a ring rail (6011), the top of the ring rail (6011) is provided with a top gear rail (6013), and the bottom of the ring rail (6011) is provided with a bottom gear rail (6012).

3. The gas density relay according to claim 2, characterized in that: The top of the annular rail (6011) is fixedly connected to a top fixing frame (6014), the top of the top fixing frame (6014) is fixedly connected to a material box (6015), the top of the material box (6015) is slidably connected to a top fixing cover (6018), the inner side of the top fixing cover (6018) is movably connected to a top cleaning brush (6020), the bottom of the top fixing cover (6018) is provided with a sliding top rail (6019), the surface of the material box (6015) is fixedly connected to a sliding plate (6016), and one side of the sliding plate (6016) is slidably connected to the inner side of the sliding top rail (6019).

4. The gas density relay according to claim 3, characterized in that: The surface of the material box (6015) and the surface of the top fixed cover (6018) are both provided with communication holes (6017), and the number of the communication holes (6017) is multiple.

5. The gas density relay according to claim 4, characterized in that: A guide rod (408) is fixedly connected to one side of the right support frame (4011), and a guide rail (409) is provided on one side of the left support frame (404), wherein the inner side of the guide rail (409) is slidably connected to the surface of the guide rod (408).

6. The gas density relay according to claim 5, characterized in that: The inner side of the left protection box (405) is fixedly connected to a limit plate (605), a limit hole (606) is provided on the surface of the limit plate (605), and the inner side of the limit hole (606) is movably connected to the surface of the side connection rod (604).

7. A control system for a gas density relay according to claim 1, comprising a control box (3), characterized in that: A control box (3) is fixedly connected to one side of the junction box (2), the control box (3) comprising a sensor module and a control module, the sensor module being used to measure the density of gas or liquid in real time, and the control module receiving the electrical signal output by the sensor module.

8. The control system of the gas density relay according to claim 7, characterized in that: The control box (3) also includes a communication module and a power module, the communication module is used to transmit measurement data and control signals, and the power module provides a stable power supply for the entire system.

9. The control method of the control system of the gas density relay according to claim 7, characterized in that: The specific steps are as follows:

1. Sensor layout and data collection Sensor arrangement: Gas density sensor: arranged in the gas density relay body, used to monitor gas density in real time; Temperature sensor: arranged in the relay body and protection box to monitor the internal temperature; Humidity sensor: arranged in the relay body and protection box to monitor the internal humidity; Acceleration sensor: arranged on the relay body, used to monitor the vibration of the equipment; Data collection: Acquisition frequency: All sensors collect data at the same frequency. Collect data; The collected data include: gas density ,temperature ,humidity , vibration data ; 2. Data Preprocessing Data cleaning and noise reduction: Use the sliding average filter algorithm to reduce the noise of the collected data and eliminate instantaneous interference; ； in, represents the data after noise reduction, Represents the original data, is the sliding window size; Data Standardization: Normalize the processed data to meet the input requirements of deep neural networks; ； in, represents the standardized data, is the data mean, is the data standard deviation; 3. Two-layer reinforcement learning algorithm 1. High-level reinforcement learning (1) High-level state definition High-level status Including gas density, temperature, humidity, vibration data ； (2) High-level action definition High-level actions Includes selection subtasks: ； (3) High-level reward function High-Level Reward Function Measuring the achievement of overall objectives: ； in, It is a high-level reward function that measures the degree of achievement of the overall goal; is the current time step; is the weight coefficient, which is used to measure the importance of distance deviation; is the distance measurement value of the current time step; is the target distance; is the weight coefficient, which is used to measure the importance of temperature deviation; is the temperature measurement value of the current time step; is the optimal temperature; is the weight coefficient, which is used to measure the importance of height deviation; is the height measurement at the current time step; is the weight coefficient, which is used to measure the importance of volume deviation; is the volume measurement value of the current time step; (4) High-level Q-value function Update of high-level Q-value function: ； in, is a high-level Q-value function, indicating that in state Take action The obtained Q value, parameter is The high-level state at the current time step t; is the high-level action at the current time step t; is the parameter of the high-level Q-value function; is the high-level reward value at the current time step t; Discount factor, which measures the impact of future rewards on the current Q value, usually between 0 and 1 is the state at the next time step t+1 All possible actions The maximum value of the medium Q value; It represents the Q-value function of the high-level policy network; (5) High-level policy network Input: High-level status ; Output: Q value of each high-level action Loss function: ； in, is the loss function of the high-level policy network, which represents the prediction error of the Q-value function; is the parameter of the high-level Q-value function; It is the expected value operation, which represents the average of all samples; is the high-level reward value at the current time step t; is the discount factor, which measures the impact of future rewards on the current Q value. is the state at the next time step t+1 All possible actions The maximum value of the medium Q value; is the state at the current time step t Next, take action The Q value obtained; Parameter update: ； in, is the parameter of the high-level Q-value function; is the learning rate, which controls the step size of parameter update; is the loss function Parameters The gradient of 2. Low-level reinforcement learning (1) Low-level state definition Low level status Includes gas density, temperature, humidity, vibration data and high-level actions: ； in (2) Low-level action definition Low-level actions Including specific execution actions: ； in, Indicates the adjustment of the electric push rod. Indicates the switch of the transmission fan. Indicates the working intensity of the transmission fan; (3) Low-level reward function Low-level reward function Measuring the performance of subtasks ； in, It is a high-level reward function that measures the degree of achievement of the overall goal; is the current time step; is the weight coefficient, which is used to measure the importance of distance deviation; is the distance measurement value of the current time step; is the target distance; is the weight coefficient, which is used to measure the importance of temperature deviation; is the temperature measurement value of the current time step; is the optimal temperature; is the weight coefficient, which is used to measure the importance of height deviation; is the height measurement at the current time step; is the weight coefficient, which is used to measure the importance of volume deviation; is the volume measurement value of the current time step; (4) Low-level strategy network Input: Low level status ; Output: Q value of each low-level action Loss function: ； in, is the loss function of the low-level policy network, which represents the prediction error of the Q-value function; is the parameter of the low-level Q-value function; It is the expected value operation, which represents the average of all samples; is the low-level reward value at the current time step t; is the discount factor, which measures the impact of future rewards on the current Q value. is the state at the next time step t+1 All possible actions The maximum value of the medium Q value; is the state at the current time step t Next, take action The Q value obtained; It represents the Q value function of the low-level policy network; Parameter update: ； in, is the parameter of the low-level Q-value function; is the learning rate, which controls the step size of parameter update; is the loss function Parameters The gradient of 3. Two-layer reinforcement learning steps (1) Initialization: Initialize high-level and low-level policy network parameters and ; Initialize high-level and low-level experience replay pools; (2) State observation: Collect sensor data to build the current high-level state and low-level status ; (3) High-level strategy selection subtask: The high-level strategy selects subtasks based on the current high-level state ; ； in, is a high-level policy function, which represents the strategy for selecting actions from the current high-level state; (4) Low-level policy execution actions: The low-level strategy selects specific actions based on the current low-level state and high-level actions ; ； in, is the low-level strategy function, which represents the strategy of selecting a specific action based on the current low-level state and high-level action; (5) Execution action: Execute an action , and observe the next state and , as well as high-level and low-level rewards ; (6) Storage experience: Will Stored in high-level experience replay pool; Will Deposit into the low-level experience replay pool; (7) Experience replay and update: Randomly draw samples from the high-level experience replay pool and update the high-level policy network parameters ; Randomly draw samples from the low-level experience replay pool and update the low-level policy network parameters ; (8) Update the target network regularly: Every few steps, the high-level and low-level strategy network parameters are and to the respective target network.

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