A self-testing method and system for peristaltic water pumps based on vacuum medical devices

Abstract

This invention discloses a self-testing method and system for a peristaltic water pump based on vacuum medical devices, relating to the field of peristaltic water pump testing technology. The method includes: acquiring and determining the pre-inlet and pre-outlet water volumes of the peristaltic water pump based on its historical normal operating progress; acquiring various operating parameters during the pump's operation and establishing a working model; and acquiring the actual inlet and outlet water volumes in real time, inputting the actual inlet water volume into the working model to calculate the expected outlet water volume. This invention establishes a linear regression equation between current value and water pump outlet water volume, acquires the actual current value under the current operating state in real time, inputs the actual current value into the linear regression equation, and determines whether the actual outlet water volume and actual current value satisfy the linear regression equation, thereby determining whether the pump has a fault. This achieves secondary testing of the pump, improves its self-testing function, and ensures the accuracy of pump testing.

Description

Technical Field

[0001] This invention relates to the field of peristaltic pump testing technology, specifically to a self-testing method and system for peristaltic pumps based on vacuum medical devices. Background Technology

[0002] A peristaltic pump consists of three parts: a driver, a pump head, and a hose. Its main competitive advantages include fluid isolation within the pump tubing, quick tubing replacement, reversible flow, dry running capability, and low maintenance costs. It is primarily used in the chemical, mining, metallurgical, paper, paint and coating, food, ceramics, petroleum, water treatment, pharmaceutical, and medical device industries.

[0003] The existing technology has the following problems:

[0004] During the operation of a peristaltic water pump, it is necessary to test its operating efficiency. Currently, we can only test the various operating indicators during the operation of the peristaltic water pump to determine whether the pump has malfunctioned. However, when the current changes during the operation of the peristaltic water pump, the pump's operating indicators will also change. How to achieve self-detection of the pump's operation through changes in current value is a problem that needs to be solved. Summary of the Invention

[0005] This invention provides a self-testing method and system for a peristaltic water pump based on vacuum medical devices. This technical solution establishes a linear regression equation between the current value and the water pump output, inputs the actual current value into the linear regression equation, and judges whether the actual water output and the actual current value satisfy the linear regression equation. This is used to detect whether the water pump has a fault and realize the self-testing function of the water pump, thereby solving the problems mentioned in the background art.

[0006] To solve the above-mentioned technical problems, the technical solution adopted by the present invention is as follows:

[0007] A self-testing method for a peristaltic water pump based on a vacuum medical device includes:

[0008] Based on the historical normal operating progress of the peristaltic water pump, the pre-inflow and pre-outflow of the peristaltic water pump are obtained and determined;

[0009] Obtain various operating parameters during the operation of the peristaltic water pump and establish a working model of the peristaltic water pump;

[0010] The actual inflow and outflow of the peristaltic pump are acquired in real time. The actual inflow is then input into the peristaltic pump working model to calculate the expected outflow. The system determines whether the actual outflow is less than the expected outflow. If so, the output of the pump is insufficient; otherwise, the output of the pump is normal.

[0011] For cases where the peristaltic pump output is insufficient, obtain the historical current value of the peristaltic pump during operation.

[0012] Based on the historical operating current values ​​of the water pump, multiple current value groups were established, and a linear regression equation between the current value and the water pump output was established.

[0013] The system acquires the actual current value under the current operating state in real time, inputs the actual current value into the linear regression equation, and determines whether the actual water output and the actual current value satisfy the linear regression equation. If yes, it outputs that the peristaltic pump is fault-free; otherwise, it outputs that the peristaltic pump is faulty and outputs a prompt signal.

[0014] Preferably, the specific calculation formula for obtaining various operating parameters during the operation of the peristaltic water pump and establishing a working model of the peristaltic water pump is as follows:

[0015]

[0016] In the formula, Y is the pre-discharge volume of the peristaltic water pump, X is the pre-inflow volume of the peristaltic water pump, and α i For the i-th running parameter, w i The weight of the i-th running parameter.

[0017] Preferably, the real-time acquisition of the actual inflow and outflow of the peristaltic water pump, inputting the actual inflow into the peristaltic water pump working model, calculating the expected outflow, and determining whether the actual outflow is less than the expected outflow, if so, the output of the output pump is insufficient; if not, the output of the output pump is normal. Specifically, this includes:

[0018] Start the peristaltic water pump to begin operation. While the peristaltic water pump is working, monitor the actual inflow and outflow of water in real time. Record the actual inflow as X0 and the actual outflow as Y0.

[0019] Input the actual inflow volume X0 into the peristaltic pump working model, and use the peristaltic pump working model to calculate the expected outflow volume under the actual inflow volume condition;

[0020] Determine whether the actual outflow Y0 is less than the expected outflow under the actual inflow state. If yes, the output of the water pump is insufficient; otherwise, the output of the water pump is reduced.

[0021] Preferably, the step of establishing multiple current value groups based on the historical operating current values ​​of the water pump, and establishing a linear regression equation between the current values ​​and the water pump output specifically includes:

[0022] Based on the historical operating current values ​​of the water pump, a set of current values ​​fluctuating around these values ​​is established, denoted as m1, m2...m i ...m n ;

[0023] Different current values ​​are input into the peristaltic pump working model to calculate the expected water output at each current value, denoted as u1, u2...u i ...u n ;

[0024] Based on the different current values ​​and expected water output, the deviation coefficient of the equation is calculated, and a linear regression equation is established.

[0025] The specific calculation formula is as follows:

[0026]

[0027] In the formula, U is the expected water output at a current value of M, M is the current value of the peristaltic pump when it is working, and m 平 The average value of the current value set, u 平 This represents the average value of the expected water output group.

[0028] Preferably: The step of acquiring the actual current value under the current working state in real time, inputting the actual current value into the linear regression equation, and determining whether the actual water output and the actual current value satisfy the linear regression equation. If yes, the peristaltic water pump is output as fault-free; if not, the peristaltic water pump is output as faulty, and a prompt signal is output. Specifically, this includes:

[0029] For a peristaltic water pump that is in operation, the actual current value under the working condition is acquired in real time;

[0030] The actual current value is input into the linear regression equation to calculate the expected water output under that actual current value.

[0031] Determine whether the expected water output is equal to the actual water output. If so, the peristaltic pump is working properly; otherwise, the peristaltic pump is faulty.

[0032] Furthermore, a self-testing system for a peristaltic water pump based on a vacuum medical device is proposed to implement the aforementioned self-testing method for a peristaltic water pump based on a vacuum medical device, comprising:

[0033] The information acquisition module is used to acquire and determine the pre-inlet and pre-outlet water volumes of the peristaltic water pump based on the historical normal working progress of the peristaltic water pump, and to acquire various operating parameters during the operation of the peristaltic water pump.

[0034] The data processing module is electrically connected to the information acquisition module. The data processing module is used to acquire various operating parameters during the operation of the peristaltic water pump and establish a working model of the peristaltic water pump. It can acquire the actual inflow and actual outflow of the peristaltic water pump in real time, input the actual inflow into the working model of the peristaltic water pump, calculate the expected outflow, and determine whether the actual outflow is less than the expected outflow.

[0035] The self-test module is electrically connected to the data processing module. The self-test module is used to obtain the current value of the peristaltic water pump during historical operation. Based on the current value of the water pump during historical operation, multiple current value groups are established, and a linear regression equation between the current value and the water pump output is established. The actual current value under the current operating state is obtained in real time, and the actual current value is input into the linear regression equation to determine whether the actual water output and the actual current value satisfy the linear regression equation.

[0036] Optionally: The data processing module internally includes:

[0037] The model building unit establishes a working model of the peristaltic water pump based on the various operating parameters obtained during the operation of the peristaltic water pump.

[0038] A water volume monitoring unit is used to acquire the actual inflow and actual outflow of water when the peristaltic water pump is working in real time.

[0039] A primary judgment unit is used to input the actual inflow volume into the peristaltic water pump working model, calculate the expected outflow volume, and determine whether the actual outflow volume is less than the expected outflow volume. If so, the output volume of the output water pump is insufficient; otherwise, the output volume of the output water pump is normal.

[0040] Optionally: The self-test module internally includes:

[0041] A current acquisition unit is used to acquire the current value of the peristaltic water pump during its historical operation.

[0042] The equation establishing unit is used to expand and establish multiple current value groups based on the historical current values ​​of the water pump, and to establish a linear regression equation between the current values ​​and the water pump output.

[0043] A current monitoring unit is used to acquire the actual current value under the current operating state in real time;

[0044] The secondary judgment unit is used to determine whether the actual water output and the actual current value satisfy the linear regression equation. If yes, it outputs that the peristaltic water pump is fault-free; otherwise, it outputs that the peristaltic water pump is faulty and outputs a prompt signal.

[0045] Due to the adoption of the above technical solution, the technical progress achieved by this invention compared to the prior art is as follows:

[0046] This invention provides a self-testing method and system for a peristaltic water pump based on vacuum medical devices. By establishing a working model of the peristaltic water pump, and inputting the actual inflow and outflow during operation, the system determines whether the actual outflow is less than the expected outflow, thus performing the first detection of a pump malfunction. Then, by establishing a linear regression equation between the current value and the pump's outflow, the system obtains the actual current value in real time under the current operating state and inputs it into the linear regression equation. The system then determines whether the actual outflow and current values ​​satisfy the linear regression equation, thereby identifying a pump malfunction and performing a second detection of the pump. This improves the pump's self-testing function and ensures the accuracy of pump detection. Attached Figure Description

[0047] Figure 1 This is a schematic diagram of the detection method of the present invention;

[0048] Figure 2 This is a schematic diagram illustrating the determination of water pump output according to the present invention;

[0049] Figure 3 This is a schematic diagram illustrating the establishment of the linear regression equation in this invention;

[0050] Figure 4 This is a schematic diagram illustrating the method for determining whether a water pump is malfunctioning according to the present invention.

[0051] Figure 5 This is a schematic diagram of the detection system of the present invention. Detailed Implementation

[0052] The present invention will be further described in detail below with reference to embodiments:

[0053] like Figure 1 As shown, this invention provides a self-testing method for a peristaltic water pump based on a vacuum medical device, comprising:

[0054] Based on the historical normal operating progress of the peristaltic water pump, the pre-inflow and pre-outflow of the peristaltic water pump are obtained and determined;

[0055] Obtain various operating parameters during the operation of the peristaltic water pump and establish a working model of the peristaltic water pump;

[0056] The actual inflow and outflow of the peristaltic pump are acquired in real time. The actual inflow is then input into the peristaltic pump working model to calculate the expected outflow. The system determines whether the actual outflow is less than the expected outflow. If so, the output of the pump is insufficient; otherwise, the output of the pump is normal.

[0057] For cases where the peristaltic pump output is insufficient, obtain the historical current value of the peristaltic pump during operation.

[0058] Based on the historical operating current values ​​of the water pump, multiple current value groups were established, and a linear regression equation between the current value and the water pump output was established.

[0059] The system acquires the actual current value under the current operating state in real time, inputs the actual current value into the linear regression equation, and determines whether the actual water output and the actual current value satisfy the linear regression equation. If yes, it outputs that the peristaltic pump is fault-free; otherwise, it outputs that the peristaltic pump is faulty and outputs a prompt signal.

[0060] The specific calculation formulas for obtaining various operating parameters during the operation of a peristaltic water pump and establishing a working model of the peristaltic water pump are as follows:

[0061]

[0062] In the formula, Y is the pre-discharge volume of the peristaltic water pump, X is the pre-inflow volume of the peristaltic water pump, and α i For the i-th running parameter, w i The weight of the i-th running parameter.

[0063] The pre-inlet water volume of the peristaltic pump is used to remove the influence of various operating parameters during operation, such as speed and vibration, and is recorded as the pre-outlet water volume that the pump should output. This pre-outlet water volume is the water volume under ideal conditions. When the inlet water volume of the pump changes, the outlet water volume will also change. By using the change in the inlet water volume, we can judge whether the outlet water volume changes as expected and perform a preliminary test on the pump.

[0064] like Figure 2 As shown, the actual inflow and outflow of the peristaltic water pump are acquired in real time. The actual inflow is then input into the peristaltic water pump operating model to calculate the expected outflow. It is then determined whether the actual outflow is less than the expected outflow. If so, the output pump output is insufficient; otherwise, the output pump output is normal. Specifically, this includes:

[0065] Start the peristaltic water pump to begin operation. While the peristaltic water pump is working, monitor the actual inflow and outflow of water in real time. Record the actual inflow as X0 and the actual outflow as Y0.

[0066] Input the actual inflow volume X0 into the peristaltic pump working model, and use the peristaltic pump working model to calculate the expected outflow volume under the actual inflow volume condition;

[0067] Determine whether the actual outflow Y0 is less than the expected outflow under the actual inflow state. If yes, the output of the water pump is insufficient; otherwise, the output of the water pump is reduced.

[0068] like Figure 3 As shown, based on the historical operating current values ​​of the water pump, multiple current value groups are established, and a linear regression equation between the current value and the water pump output is established, specifically including:

[0069] Based on the historical operating current values ​​of the water pump, a set of current values ​​fluctuating around these values ​​is established, denoted as m1, m2...m i ...m n ;

[0070] Different current values ​​are input into the peristaltic pump working model to calculate the expected water output at each current value, denoted as u1, u2...u i ...u n ;

[0071] Based on the different current values ​​and expected water output, the deviation coefficient of the equation is calculated, and a linear regression equation is established.

[0072] The specific calculation formula is as follows:

[0073]

[0074] In the formula, U is the expected water output at a current value of M, M is the current value of the peristaltic pump when it is working, and m 平 The average value of the current value set, u 平 This represents the average value of the expected water output group.

[0075] The deviation coefficient of the data set is calculated by different current values ​​and pre-output water volume values, and a linear regression equation is established. When the water pump operating current value changes, the output water volume also changes. The output water volume is calculated using the changing current value. If the output water volume is affected by the change in current value, the linear regression equation will be satisfied, indicating that the change in output water volume is caused by the change in current value, not by a water pump malfunction. This allows for a secondary judgment of the water pump, enabling self-checking of the water pump and improving the detection effect.

[0076] like Figure 4 As shown, the actual current value under the current operating state is acquired in real time. This actual current value is input into the linear regression equation to determine whether the actual water output and the actual current value satisfy the linear regression equation. If yes, the peristaltic pump is considered fault-free; otherwise, the peristaltic pump is considered faulty, and a prompt signal is output, specifically including:

[0077] For a peristaltic water pump that is in operation, the actual current value under the working condition is acquired in real time;

[0078] The actual current value is input into the linear regression equation to calculate the expected water output under that actual current value.

[0079] Determine whether the expected water output is equal to the actual water output. If so, the peristaltic pump is working properly; otherwise, the peristaltic pump is faulty.

[0080] Furthermore, such as Figure 5 As shown, based on the above-mentioned inventive concept of a self-testing method for a peristaltic water pump based on a vacuum medical device, this solution also proposes a self-testing system for a peristaltic water pump based on a vacuum medical device, comprising:

[0081] The information acquisition module is used to acquire and determine the pre-inlet and pre-outlet water volumes of the peristaltic water pump based on the historical normal working progress of the peristaltic water pump, and to acquire various operating parameters during the operation of the peristaltic water pump.

[0082] The data processing module is electrically connected to the information acquisition module. The data processing module is used to acquire various operating parameters during the operation of the peristaltic water pump and establish a working model of the peristaltic water pump. It can acquire the actual inflow and actual outflow of the peristaltic water pump in real time, input the actual inflow into the working model of the peristaltic water pump, calculate the expected outflow, and determine whether the actual outflow is less than the expected outflow.

[0083] The self-test module is electrically connected to the data processing module. The self-test module is used to obtain the current value of the peristaltic water pump during historical operation. Based on the current value of the pump during historical operation, multiple current value groups are established, and a linear regression equation between the current value and the water output of the pump is established. The actual current value under the current operating state is obtained in real time, and the actual current value is input into the linear regression equation to determine whether the actual water output and the actual current value satisfy the linear regression equation.

[0084] The data processing module includes the following internal components:

[0085] The model building unit establishes a working model of the peristaltic water pump based on the various operating parameters obtained during the operation of the peristaltic water pump.

[0086] The water volume monitoring unit is used to obtain the actual inflow and outflow of water when the peristaltic water pump is working in real time.

[0087] The first judgment unit is used to input the actual water inflow into the peristaltic water pump working model, calculate the expected water outflow, and judge whether the actual water outflow is less than the expected water outflow. If so, the output of the output water pump is insufficient; otherwise, the output of the output water pump is normal.

[0088] The self-test module includes the following:

[0089] Current acquisition unit, used to acquire the current value of the peristaltic water pump during historical operation;

[0090] The equation establishment unit is used to expand and establish multiple current value groups based on the historical current values ​​of the water pump, and to establish a linear regression equation between the current values ​​and the water pump output.

[0091] The current monitoring unit is used to acquire the actual current value under the current operating condition in real time.

[0092] The secondary judgment unit is used to determine whether the actual water output and the actual current value satisfy the linear regression equation. If yes, it outputs that the peristaltic water pump is fault-free; otherwise, it outputs that the peristaltic water pump is faulty and outputs a prompt signal.

[0093] The above-mentioned process for using a peristaltic water pump self-testing system based on vacuum medical devices is as follows:

[0094] Step 1: Using the information acquisition module, based on the historical normal working progress of the peristaltic water pump, obtain and determine the pre-inlet and pre-outlet water volumes of the peristaltic water pump, and acquire various operating parameters during the operation of the peristaltic water pump;

[0095] Step 2: The model building unit establishes a working model of the peristaltic water pump based on the various operating parameters obtained during the operation of the peristaltic water pump.

[0096] Step 3: The water volume monitoring unit acquires the actual inflow and outflow of the peristaltic water pump in real time, and inputs the actual inflow into the peristaltic water pump working model to calculate the expected outflow.

[0097] Step 4: The first judgment unit determines whether the actual water output is less than the expected water output. If so, the output of the output water pump is insufficient; if not, the output of the output water pump is normal.

[0098] Step 5: If the peristaltic pump output is insufficient, the current acquisition unit obtains the current value of the peristaltic pump during its historical operation.

[0099] Step Six: Equation Establishment Unit. Based on the historical current values ​​of the water pump, multiple current value groups are established, and a linear regression equation between the current values ​​and the water pump output is established.

[0100] Step 7: The current monitoring unit acquires the actual current value under the current operating condition in real time;

[0101] Step 8: The secondary judgment unit determines whether the actual water output and the actual current value satisfy the linear regression equation. If yes, it outputs that the peristaltic water pump is fault-free; otherwise, it outputs that the peristaltic water pump is faulty and outputs a prompt signal.

[0102] In summary, the advantages of this invention are as follows: By establishing a peristaltic pump working model, the actual inflow and outflow of water during pump operation are used to determine whether the actual outflow is less than the expected outflow, thus achieving the first detection of pump malfunction. Then, by establishing a linear regression equation between current value and pump outflow, the actual current value under the current operating state is obtained in real time and input into the linear regression equation to determine whether the actual outflow and actual current value satisfy the linear regression equation, thereby determining whether the pump is faulty and achieving a second detection of the pump. This improves the pump's self-testing function and ensures the accuracy of pump detection.

[0103] The present invention has been described in detail above. However, modifications or improvements can be made to it, which will be obvious to those skilled in the art. Therefore, any modifications or improvements that do not depart from the spirit of the present invention are within the scope of protection of the present invention.

Claims

1. A self-testing method for a peristaltic water pump based on a vacuum medical device, characterized in that: include: Based on the historical normal operating progress of the peristaltic water pump, the pre-inflow and pre-outflow of the peristaltic water pump are obtained and determined; Obtain various operating parameters during the operation of the peristaltic water pump and establish a working model of the peristaltic water pump; The actual inflow and outflow of the peristaltic pump are acquired in real time. The actual inflow is then input into the peristaltic pump working model to calculate the expected outflow. The system determines whether the actual outflow is less than the expected outflow. If so, the output of the pump is insufficient; otherwise, the output of the pump is normal. For cases where the peristaltic pump output is insufficient, obtain the historical current value of the peristaltic pump during operation. Based on the historical operating current values ​​of the water pump, multiple current value groups were established, and a linear regression equation between the current value and the water pump output was established. The system acquires the actual current value under the current operating state in real time, inputs the actual current value into the linear regression equation, and determines whether the actual water output and the actual current value satisfy the linear regression equation. If yes, it outputs that the peristaltic pump is fault-free; otherwise, it outputs that the peristaltic pump is faulty and outputs a prompt signal.

2. The self-testing method for a peristaltic water pump based on a vacuum medical device according to claim 1, characterized in that: The specific calculation formula for obtaining various operating parameters during the operation of the peristaltic water pump and establishing a working model of the peristaltic water pump is as follows: In the formula, Y is the pre-discharge volume of the peristaltic water pump, X is the pre-inflow volume of the peristaltic water pump, and α i For the i-th running parameter, w i The weight of the i-th running parameter.

3. The self-testing method for a peristaltic water pump based on a vacuum medical device according to claim 2, characterized in that: The process of acquiring the actual inflow and outflow of the peristaltic pump in real time, inputting the actual inflow into the peristaltic pump operating model, calculating the expected outflow, and determining whether the actual outflow is less than the expected outflow—if so, the output of the pump is insufficient; otherwise, the output of the pump is normal—specifically includes: Start the peristaltic water pump to begin operation. While the peristaltic water pump is working, monitor the actual inflow and outflow of water in real time. Record the actual inflow as X0 and the actual outflow as Y0. Input the actual inflow volume X0 into the peristaltic pump working model, and use the peristaltic pump working model to calculate the expected outflow volume under the actual inflow volume condition; Determine whether the actual outflow Y0 is less than the expected outflow under the actual inflow state. If yes, the output of the water pump is insufficient; otherwise, the output of the water pump is reduced.

4. The self-testing method for a peristaltic water pump based on a vacuum medical device according to claim 2, characterized in that: The process of establishing multiple current value groups based on the historical operating current values ​​of the water pump, and establishing a linear regression equation between the current values ​​and the water pump output specifically includes: Based on the historical operating current values ​​of the water pump, a set of current values ​​fluctuating around these values ​​is established, denoted as m1, m2...m i ...m n ; Different current values ​​are input into the peristaltic pump working model to calculate the expected water output at each current value, denoted as u1, u2...u i ...u n ; Based on the different current values ​​and expected water output, the deviation coefficient of the equation is calculated, and a linear regression equation is established. The specific calculation formula is as follows: In the formula, U is the expected water output at a current value of M, M is the current value of the peristaltic pump when it is working, and m 平 The average value of the current value set, u 平 This represents the average value of the expected water output group.

5. A self-testing method for a peristaltic water pump based on a vacuum medical device according to claim 4, characterized in that: The process involves acquiring the actual current value under the current operating state in real time, inputting the actual current value into a linear regression equation, and determining whether the actual water output and the actual current value satisfy the linear regression equation. If yes, the peristaltic pump is considered fault-free; otherwise, the peristaltic pump is considered faulty, and a prompt signal is output. Specifically, this includes: For a peristaltic water pump that is in operation, the actual current value under the working condition is acquired in real time; The actual current value is input into the linear regression equation to calculate the expected water output under that actual current value. Determine whether the expected water output is equal to the actual water output. If so, the peristaltic pump is working properly; otherwise, the peristaltic pump is faulty.

6. A self-testing system for a peristaltic water pump based on a vacuum medical device, used to implement the self-testing method for a peristaltic water pump based on a vacuum medical device as described in any one of claims 1-5, characterized in that: include: The information acquisition module is used to acquire and determine the pre-inlet and pre-outlet water volumes of the peristaltic water pump based on the historical normal working progress of the peristaltic water pump, and to acquire various operating parameters during the operation of the peristaltic water pump. The data processing module is electrically connected to the information acquisition module. The data processing module is used to acquire various operating parameters during the operation of the peristaltic water pump and establish a working model of the peristaltic water pump. It can acquire the actual inflow and actual outflow of the peristaltic water pump in real time, input the actual inflow into the working model of the peristaltic water pump, calculate the expected outflow, and determine whether the actual outflow is less than the expected outflow. The self-test module is electrically connected to the data processing module. The self-test module is used to obtain the current value of the peristaltic water pump during historical operation. Based on the current value of the water pump during historical operation, multiple current value groups are established, and a linear regression equation between the current value and the water pump output is established. The actual current value under the current operating state is obtained in real time, and the actual current value is input into the linear regression equation to determine whether the actual water output and the actual current value satisfy the linear regression equation.

7. A self-testing system for a peristaltic water pump based on a vacuum medical device according to claim 6, characterized in that: The data processing module includes the following internal components: The model building unit establishes a working model of the peristaltic water pump based on the various operating parameters obtained during the operation of the peristaltic water pump. A water volume monitoring unit is used to acquire the actual inflow and actual outflow of water when the peristaltic water pump is working in real time. A primary judgment unit is used to input the actual inflow volume into the peristaltic water pump working model, calculate the expected outflow volume, and determine whether the actual outflow volume is less than the expected outflow volume. If so, the output volume of the output water pump is insufficient; otherwise, the output volume of the output water pump is normal.

8. A self-testing system for a peristaltic water pump based on a vacuum medical device according to claim 6, characterized in that: The self-test module includes the following internal components: A current acquisition unit is used to acquire the current value of the peristaltic water pump during its historical operation. The equation establishing unit is used to expand and establish multiple current value groups based on the historical current values ​​of the water pump, and to establish a linear regression equation between the current values ​​and the water pump output. A current monitoring unit is used to acquire the actual current value under the current operating state in real time; The secondary judgment unit is used to determine whether the actual water output and the actual current value satisfy the linear regression equation. If yes, it outputs that the peristaltic water pump is fault-free; otherwise, it outputs that the peristaltic water pump is faulty and outputs a prompt signal.

Images