Liquid level monitoring control assembly and method of buffer water tank, analyzer and electronic equipment

Abstract

The invention relates to a liquid level monitoring control assembly and method of a buffer water tank, an analyzer and electronic equipment, and relates to the technical field of medical instrument in-vitro diagnosis, and in one embodiment, the control assembly comprises a first liquid level sensor, a second liquid level sensor and a controller; the first liquid level sensor is arranged at a first water tank height of the buffer water tank, the first water tank height is a height position when the buffer water tank stores a first volume of liquid, and the second liquid level sensor is arranged at a second water tank height when the buffer water tank stores a second volume of liquid; and the controller is in communication connection with the first liquid level sensor and the second liquid level sensor and is used for detecting the abnormity of the buffer water tank according to the received first detection signal and the second detection signal. By adopting the scheme of the embodiment, the reliability and correctness of liquid level monitoring control of the buffer water tank are improved.

Description

Technical Field

[0001] The present application relates to the technical field of in vitro diagnosis of medical devices, and in particular to a liquid level monitoring and control component, method, device, analyzer, electronic equipment, storage medium and computer program product for a cache water tank. Background Art

[0002] In the field of in vitro diagnostic technology for medical devices, there are many clinical in vitro diagnostic technologies. The water supply systems of most medium-sized and large in vitro diagnostic analyzers have a cache water tank, which can also be called a cache water bucket. If the liquid level in the cache water tank is too low, it will cause abnormalities such as air inhalation and even damage to the liquid path components, which will cause errors in the diagnostic results of the analyzer; if the liquid level in the cache water bucket is too high or not controlled, it will cause overflow or leakage of the cache liquid. Therefore, how to accurately and reliably control the liquid level of the cache water bucket, and monitor and alarm external anomalies and handle anomalies has become one of the important research contents for the stability, reliability and risk control of the analyzer system.

[0003] However, the current liquid level monitoring and control of the cache water tank has the problem of low reliability. Summary of the invention

[0004] Based on this, it is necessary to provide a liquid level monitoring control component, method, device, analyzer, electronic device, computer-readable storage medium and computer program product for a cache water tank that can improve reliability in response to the above-mentioned technical problems.

[0005] In a first aspect, the present application provides a liquid level monitoring and control component for a cache water tank. The component includes a first liquid level sensor, a second liquid level sensor, and a controller;

[0006] The first liquid level sensor is arranged at a first water tank height of the cache water tank, the first water tank height being the height position of the cache water tank when storing a first volume of liquid, the first volume of liquid including the minimum safe volume of liquid that can prevent the components of the device where the cache water tank is located from being damaged, the maximum volume of liquid consumed to complete the target test, and the sum of the timeout volume of liquid when the water replenishment times out, and the first liquid level sensor outputs a first detection signal when detecting liquid;

[0007] The second liquid level sensor is arranged at the height of the second water tank when the cache water tank stores a second volume of liquid; wherein the second volume of liquid includes: the sum of the minimum safe volume of liquid, the maximum consumption volume of liquid, the timeout volume of liquid, and the control volume of liquid, and the second liquid level sensor outputs a second detection signal when detecting liquid;

[0008] The controller is communicatively connected with the first liquid level sensor and the second liquid level sensor, and is used for performing abnormality detection of the cache water tank according to the received first detection signal and second detection signal.

[0009] In some embodiments, the controller is further configured to determine that a sensor abnormality exists when the second detection signal is received but the first detection signal is not received.

[0010] In some embodiments, the controller is also used to obtain the unit minimum liquid intake and the unit liquid consumption, and use the ratio of the first volume liquid to the first difference as the first maximum water replenishment time, and the first difference is the difference between the unit minimum liquid intake and the unit liquid consumption.

[0011] In some embodiments, the controller is further used to use the ratio of the controlled liquid volume to the first difference as the second maximum water replenishment time.

[0012] In some embodiments, the overtime volume liquid amount is greater than or equal to the maximum value of the maximum water inlet overtime consumption and the control liquid amount, and the maximum water inlet overtime consumption is the product of the second maximum water replenishment time and the unit consumption liquid amount.

[0013] The assembly further includes a liquid meter, the liquid meter being communicatively connected to the controller;

[0014] The liquid meter is used to monitor the consumed liquid volume of the cache water tank;

[0015] The controller is further configured to perform abnormality detection on the first liquid level sensor according to the received first detection signal and the consumed liquid amount.

[0016] In some embodiments, the controller is further used to determine that the first liquid level sensor has a false triggering anomaly when the consumed liquid volume is greater than or equal to the controlled liquid volume during continuous receipt of the first detection signal.

[0017] In some embodiments, the controller is also used to obtain real-time liquid inflow volume; if the real-time liquid inflow volume is less than the minimum liquid inflow volume, output a first prompt message of abnormal liquid inflow; if the real-time liquid inflow volume is greater than the maximum liquid inflow volume, reduce the opening of the liquid inflow valve on the liquid inlet pipeline of the cache water tank.

[0018] In some of the embodiments, the controller is further used to obtain an average liquid supply duration of the most recent preset number of liquid supply processes, and determine the real-time liquid intake amount based on the controlled liquid volume and the average liquid supply duration.

[0019] In some of the embodiments, the controller is further used to obtain the water supply duration of the most recent preset number of liquid supply processes, calculate the average value after removing the maximum and minimum values ​​of each of the water supply durations, and obtain the average liquid supply duration.

[0020] In some of the embodiments, the controller is further used to determine the maximum liquid inflow volume as the real-time liquid inflow volume when the number of liquid supply processes of the device is less than the preset number.

[0021] In a second aspect, the present application also provides a method for monitoring and controlling the liquid level of a cache water tank, wherein the method comprises:

[0022] Monitor whether a first detection signal from a first liquid level sensor is received, the first liquid level sensor is arranged at a first water tank height of the cache water tank, the first water tank height is a height position when the cache water tank stores a first volume of liquid, the first volume of liquid includes the minimum safe volume of liquid that can prevent components of the device where the cache water tank is located from being damaged, the maximum volume of liquid consumed to complete the target test, and the sum of the timeout volume of liquid when the water replenishment times out, and the first liquid level sensor outputs a first detection signal when liquid is detected;

[0023] monitoring whether a second detection signal from a second liquid level sensor is received, wherein the second liquid level sensor is arranged at a height of a second water tank when the cache water tank stores a second volume of liquid; wherein the second volume of liquid includes: the sum of the minimum safe volume of liquid, the maximum consumption volume of liquid, the timeout volume of liquid, and the control volume of liquid, and the second liquid level sensor outputs a second detection signal when detecting liquid;

[0024] Abnormality detection of the cache water tank is performed according to whether the first detection signal and the second detection signal are received.

[0025] In a third aspect, the present application also provides a liquid level monitoring and control device for a buffer water tank. The device comprises:

[0026] A signal receiving module, used for receiving a first detection signal of a first liquid level sensor, and a second detection signal of a second liquid level sensor, wherein the first liquid level sensor is arranged at a first water tank height of the cache water tank, the first water tank height being the height position when the cache water tank stores a first volume of liquid, the first volume of liquid comprising the minimum safe volume of liquid that can prevent the components of the equipment where the cache water tank is located from being damaged, the maximum consumption volume of liquid required to complete the target test, and the sum of the timeout volume of liquid when the water replenishment times out, the first liquid level sensor outputs a first detection signal when liquid is detected; the second liquid level sensor is arranged at a second water tank height when the cache water tank stores a second volume of liquid; wherein the second volume of liquid comprises: the sum of the minimum safe volume of liquid, the maximum consumption volume of liquid, the timeout volume of liquid, and the control liquid, and the second liquid level sensor outputs a second detection signal when liquid is detected;

[0027] The abnormality detection module is used to perform abnormality detection on the cache water tank according to whether the first detection signal and the second detection signal are received.

[0028] In a fourth aspect, the present application also provides an analyzer, including a cache water tank and a liquid level monitoring and control component as described in any of the above embodiments.

[0029] In a fifth aspect, the present application further provides an electronic device, comprising a memory and a processor, wherein the memory stores a computer program, wherein when the processor executes the computer program, the liquid level monitoring and control method of the cache water tank as described in the above embodiment is implemented.

[0030] In a sixth aspect, the present application further provides a computer-readable storage medium having a computer program stored thereon, and when the computer program is executed by a processor, the liquid level monitoring and control method of the cache water tank as described in the above embodiment is implemented.

[0031] In a seventh aspect, the present application further provides a computer program product, which includes a computer program, and when the computer program is executed by a processor, the liquid level monitoring and control method of the cache water tank described in the above embodiment is implemented.

[0032] The above-mentioned cache water tank liquid level monitoring and control component, method, device, analyzer, electronic device, computer-readable storage medium and computer program product, on the one hand, only need to set up two liquid level sensors, reducing the number of sensors used for abnormal detection of the cache water tank, thereby reducing costs, and on the other hand, it sets the setting positions of the two liquid level sensors in combination with the minimum safe volume liquid amount for the components of the equipment where the cache water tank is located to not be damaged, the maximum consumption volume liquid amount required to complete the target test, the timeout volume liquid amount when the water replenishment timeout occurs, and the control liquid amount during control, so that the setting positions of the two liquid level sensors are determined under consideration of multiple liquid amounts, and on this basis, the cache water tank is detected for abnormalities based on the detection signals of the two liquid level sensors, thereby helping to improve the reliability and accuracy of the liquid level monitoring and control of the cache water tank. BRIEF DESCRIPTION OF THE DRAWINGS

[0033] Figure 1 A structural environment diagram of a liquid level monitoring control component of a cache water tank in one embodiment;

[0034] Figure 2 A schematic diagram of the liquid position of each volume of liquid in a buffer water tank and the setting position of a liquid level sensor in an example;

[0035] Figure 3 is a schematic diagram of a monitoring control process in a specific example;

[0036] Figure 4 A structural environment diagram of a liquid level monitoring control component of a cache water tank in another embodiment;

[0037] Figure 5 is a schematic diagram of a monitoring control process in another specific example;

[0038] Figure 6 is a schematic diagram of a monitoring control process in another specific example;

[0039] Figure 7 is a schematic diagram of a monitoring control process in another specific example;

[0040] Figure 8 It is a flow chart of a method for monitoring and controlling the liquid level of a buffer water tank in one embodiment;

[0041] Fig. 9 It is a structural block diagram of a liquid level monitoring and control device of a cache water tank in an embodiment. DETAILED DESCRIPTION

[0042] In order to make the purpose, technical solution and advantages of the present application more clearly understood, the present application is further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present application and are not used to limit the present application.

[0043] The following embodiments of the technical solution of the present application are described in detail in conjunction with the accompanying drawings. The following embodiments are only used to more clearly illustrate the technical solution of the present application, and are therefore only used as examples, and cannot be used to limit the scope of protection of the present application.

[0044] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by technicians in the technical field to which this application belongs; the terms used herein are only for the purpose of describing specific embodiments and are not intended to limit this application; the terms "including" and "having" in the specification and claims of this application and the above-mentioned figure descriptions and any variations thereof are intended to cover non-exclusive inclusions.

[0045] In the description of the embodiments of the present application, the technical terms "first", "second", etc. are only used to distinguish different objects, and cannot be understood as indicating or implying relative importance or implicitly indicating the number, specific order or primary and secondary relationship of the indicated technical features. In the description of the embodiments of the present application, the meaning of "multiple" is more than two, unless otherwise clearly and specifically defined.

[0046] Reference to "embodiments" herein means that a particular feature, structure, or characteristic described in conjunction with the embodiments may be included in at least one embodiment of the present application. The appearance of the phrase in various locations in the specification does not necessarily refer to the same embodiment, nor is it an independent or alternative embodiment that is mutually exclusive with other embodiments. It is explicitly and implicitly understood by those skilled in the art that the embodiments described herein may be combined with other embodiments.

[0047] In the description of the embodiments of the present application, the term "and / or" is only a description of the association relationship of the associated objects, indicating that there may be three relationships. For example, A and / or B can represent: A exists alone, A and B exist at the same time, and B exists alone. In addition, the character " / " in this article generally indicates that the associated objects before and after are in an "or" relationship.

[0048] In the description of the embodiments of the present application, the term "multiple" refers to more than two (including two). Similarly, "multiple groups" refers to more than two groups (including two groups), and "multiple pieces" refers to more than two pieces (including two pieces).

[0049] At present, in order to accurately and reliably control the liquid level of the cache bucket, and monitor and alarm external anomalies and handle abnormalities, for example, to avoid liquid overflow or emptying, the relevant detection and monitoring methods require the use of more monitoring sites, usually greater than or equal to three, resulting in relatively high monitoring costs. The coordination of data from multiple monitoring points can easily lead to reduced reliability. Moreover, the relevant liquid level control logic does not take into account the situation of monitoring sensor failure or failure, which may lead to abnormal overflow or emptying, increasing the risk.

[0050] Based on this, after research, it was found that the monitoring sensor will periodically output a detection signal. When the sensor works normally, the amount of liquid that can be controlled by the cache water tank has a certain range. In order to ensure the safety of the equipment where the cache water tank is located and to prevent the components of the equipment where the cache water tank is located from being damaged, the cache water tank needs to have the most corresponding volume of liquid. If the water replenishment is overtime, it is also necessary to consider that the overtime water replenishment will not overflow the cache water tank. Therefore, the location and number of sensors that monitor the cache water tank can be designed accordingly.

[0051] Accordingly, reference Figure 1 As shown, an embodiment of the present application provides a liquid level monitoring and control component for a cache water tank, wherein the component includes a first liquid level sensor 101 , a second liquid level sensor 102 and a controller 103 .

[0052] The first liquid level sensor 101 is arranged at a first water tank height of the cache water tank, wherein the first water tank height is a height position when the cache water tank stores a first volume of liquid, the first volume of liquid includes the minimum safe volume of liquid that can prevent the components of the device where the cache water tank is located from being damaged, the maximum volume of liquid consumed to complete the target test, and the sum of the timeout volume of liquid when the water replenishment times out, and the first liquid level sensor 101 outputs a first detection signal when liquid is detected;

[0053] The second liquid level sensor 102 is arranged at the height of the second water tank when the cache water tank stores a second volume of liquid; wherein the second volume of liquid includes: the sum of the minimum safe volume of liquid, the maximum consumption volume of liquid, the timeout volume of liquid, and the control volume of liquid, and the second liquid level sensor 102 outputs a second detection signal when detecting liquid;

[0054] The controller 103 is in communication connection with the first liquid level sensor 101 and the second liquid level sensor 102, and is used for performing abnormality detection of the cache water tank according to the received first detection signal and second detection signal.

[0055] The device type of the device where the cache water tank is located is not limited, and it can be an in vitro diagnostic analyzer. In the following embodiments, the device where the cache water tank is located is taken as an analyzer as an example for illustration.

[0056] The minimum safe volume of liquid is the minimum safe volume of liquid that can prevent the components of the equipment where the cache water tank is located from being damaged. It is the minimum liquid volume to protect the components from being damaged. It can be determined based on the design requirements of the cache water tank or the equipment where the cache water tank is located, such as an analyzer.

[0057] The maximum consumed volume liquid volume is the amount of liquid needed to be consumed by the equipment where the cache water tank is located to complete the target test process. When the equipment can complete multiple different types of test processes, the maximum value of the amount of liquid consumed by multiple different test processes can be used as the maximum consumed volume liquid volume, which can be determined based on the design requirements of the cache water tank or the equipment where the cache water tank is located, such as an analyzer.

[0058] The target test can be a single test, which can be a separate test process. When the analyzer can perform batch testing, the single test can be a large-batch application test, that is, the target test can be the maximum application test volume of the analyzer. At this time, the maximum consumed volume liquid amount is the liquid amount required for the equipment where the cache water tank is located to complete the test process of the maximum application test volume.

[0059] The overtime volume is the amount of liquid consumed due to overtime replenishment caused by failure of the liquid level sensor.

[0060] The controlled liquid volume is the range of liquid volume that can be accurately controlled by the first liquid level sensor 101 and the second liquid level sensor 102 , which can be determined according to design requirements.

[0061] Among them, when determining the minimum safe volume liquid amount, the maximum consumption volume liquid amount and the control liquid amount according to the design requirements, it can be determined according to the unit time consumption liquid amount Qs of the designed analyzer and the liquid inlet amount Qi of the cache water tank. Among them, the range of the liquid inlet amount Qi is Qi∈[Qimin,Qimax], where Qimin is the unit minimum liquid inlet amount and Qimax is the unit maximum liquid inlet amount. It can be seen that the liquid inlet amount Qi is an unknown but controllable physical quantity within a certain range. In the design of the analyzer, under normal circumstances, the unit time consumption liquid amount Qs is much smaller than the unit time liquid inlet amount Qi.

[0062] The liquid level sensor is a sensor that can detect whether there is liquid and output a signal accordingly. The type of the liquid level sensor is not limited, such as a float type liquid level sensor, a capacitive liquid level sensor, a laser type liquid level sensor, etc., but not limited thereto. The sensor types of the first liquid level sensor 101 and the second liquid level sensor 102 can be the same or different.

[0063] The signal output by the liquid level sensor when no liquid is detected is different from the signal output when liquid is detected, for example, a 0-level signal is output when no liquid is detected, and a 1-level signal is output when liquid is detected, but the present invention is not limited thereto. In the embodiment of the present application, the signal output by the first liquid level sensor 101 when liquid is detected is referred to as a first detection signal, and the signal output by the second liquid level sensor 102 when liquid is detected is referred to as a second detection signal.

[0064] The relationship between the minimum safe volume, the maximum consumption volume, the timeout volume, and the volume of the controlled liquid in the cache water bucket, and the positions of the first liquid level sensor 101 and the second liquid level sensor 102 in the cache water tank can be as follows: Figure 2 shown.

[0065] Combination Figure 2 It can be seen that the first liquid level sensor 101 sets the position of the first water tank height H1 when the cache water tank stores the first volume of liquid. It is set on the basis of considering the protection liquid level h5 corresponding to the minimum safe volume liquid V5 to protect the components from damage, the maximum consumption liquid level h4 corresponding to the maximum consumption volume liquid V4 required to complete the target test process, and the overtime volume liquid level h3 corresponding to the overtime volume liquid V3 consumed due to the overtime of water replenishment caused by the failure of the liquid level sensor. The second liquid level sensor 102 sets the position of the second water tank height H2 when the cache water tank stores the second volume of liquid, which is set on the basis of considering the protection liquid level h5 corresponding to the minimum safe volume liquid V5 to protect the components from damage, the maximum consumption liquid level h4 corresponding to the maximum consumption volume liquid V4 required to complete the target test process, the overtime volume liquid level h3 corresponding to the overtime volume liquid V3 consumed due to the overtime of water replenishment caused by the failure of the liquid level sensor, and the control liquid level h2 corresponding to the control liquid V2 that the sensor can accurately control. Therefore, the liquid level of the cache water tank can be known by combining the first liquid level sensor 101 and the second liquid level sensor 102, which can meet the protection requirements of the minimum safe volume of liquid when the liquid level sensor fails and causes water replenishment timeout.

[0066] According to the liquid level monitoring and control component of the embodiment of the present application, on the one hand, only two liquid level sensors need to be set, which reduces the number of sensors used for abnormal detection of the cache water tank, thereby reducing the cost. On the other hand, the setting positions of the two liquid level sensors are set in combination with the minimum safe volume of liquid in which the components of the equipment where the cache water tank is located are not damaged, the maximum consumption volume of liquid required to complete the target test, the timeout volume of liquid when the water replenishment timeout occurs, and the control liquid volume during control. Therefore, the setting positions of the two liquid level sensors are determined in consideration of multiple liquid volumes. On this basis, the cache water tank is detected for abnormalities based on the detection signals of the two liquid level sensors, which helps to improve the reliability and accuracy of the liquid level monitoring and control of the cache water tank.

[0067] Continue to refer Figure 2 As shown, in some embodiments, the liquid volume of the cache water tank also includes an overtime margin liquid volume, and the capacity of the cache water tank is the sum of the second volume liquid volume and the overtime margin liquid volume.

[0068] Among them, the overtime residual liquid volume is the overtime overflow of water replenishment caused by continuous water replenishment due to sensor failure. Its volume can be recorded as V1, and the corresponding liquid level can be recorded as h1.

[0069] The method for determining the overtime margin liquid volume is not limited. In some embodiments, the overtime margin liquid volume V1 is greater than or equal to the maximum value between the second difference and the second maximum liquid volume difference, and the second difference is the difference between the first maximum liquid volume difference and the control liquid volume;

[0070] The first maximum liquid volume difference is the product of the difference between the unit maximum liquid inflow volume and the unit minimum liquid inflow volume and the first maximum water replenishment time, and the second maximum liquid volume difference is the product of the difference between the unit maximum liquid inflow volume and the unit minimum liquid inflow volume and the second maximum water replenishment time.

[0071] As described above, the minimum unit liquid inflow is recorded as Qimin, the maximum unit liquid inflow is recorded as Qimax, and the unit liquid consumption is recorded as Qs. When the cache water tank is not filled with liquid, that is, when it is empty, the maximum time for liquid to be input into the cache water tank until the liquid height reaches the first water tank height H1, that is, the first maximum water replenishment time t1max≥(V3+V4+V5) / (Qimin-Qs) for inputting the first volume of liquid into the cache water tank. The first maximum liquid volume difference V6=(Qimax-Qmin)*t1max.

[0072] After the water level reaches the height of the first water tank, the maximum time for further inputting liquid into the cache water tank until the liquid height reaches the second water tank height H2, that is, the second maximum water replenishment time t2max≥V2 / (Qimin-Qs). The maximum liquid volume difference V7=(Qimax-Qimin)*t2max.

[0073] Therefore, the timeout margin liquid volume V1 can be set to the maximum value of the difference between the first maximum liquid volume difference V6 and the control liquid volume V2, and the second maximum liquid volume difference, that is, V1≥max((V6-V2), V7).

[0074] Based on this embodiment, the product of the difference between the maximum unit liquid inflow and the minimum unit liquid inflow and the first maximum water replenishment time, as well as the product of the difference between the maximum liquid inflow and the minimum unit liquid inflow and the second maximum water replenishment time, can determine the liquid volume that continuously inflows until the first liquid level sensor 101 detects the liquid level, and the liquid volume when the second liquid level sensor 102 detects the signal. On this basis, the overtime residual liquid volume is determined in combination with the controlled liquid volume, so as to determine the liquid volume that can be further inflowed in the event of a sensor failure, so that the capacity of the cache water tank can, in the event of a sensor failure, allow a certain amount of residual storage for the delivered liquid before the liquid inlet valve 104 is closed, thereby further improving safety.

[0075] Among them, the method for determining the overtime volume liquid amount is not limited. In some embodiments, the overtime volume liquid amount is greater than or equal to the maximum value of the maximum water inlet overtime consumption and the control liquid amount, and the maximum water inlet overtime consumption is the product of the second maximum water replenishment time and the unit consumption liquid amount.

[0076] As described above, after the water level reaches the first water tank height, the maximum time for further inputting liquid into the cache water tank until the liquid height reaches the second water tank height H2 is the second maximum water replenishment time t2max. The maximum water inlet timeout consumption liquid volume V8=t2max*Qs, and the maximum control volume liquid volume consumed due to the false triggering of the first liquid level sensor 101 is the control liquid volume V2. Therefore, the maximum value of the maximum water inlet timeout consumption liquid volume and the control liquid volume can be used as the timeout volume liquid volume V3, that is, V3≥max(V8, V2).

[0077] In some embodiments, the controller 103 is further configured to determine that a sensor abnormality exists when the second detection signal is received but the first detection signal is not received.

[0078] The signal output by the first liquid level sensor 101 is recorded as S1. When S1 is 0, it is considered that the first detection signal is not received, and when S1 is 1, it is considered that the first detection signal is received. The signal output by the second liquid level sensor 102 is recorded as S2. When S2 is 0, it is considered that the second detection signal is not received, and when S2 is 1, it is considered that the second detection signal is received. Figure 3As shown, when S2 is less than or equal to S1, it means that the signal is normal, otherwise, if S2 is greater than S1, it means that the controller 103 has received the second detection signal but has not received the first detection signal, which means that the second liquid level sensor 102 at a higher liquid level position has detected liquid, while the first liquid level sensor 101 at a lower liquid level position has not detected liquid, which means that there must be an abnormality in the sensor, and thus the sensor abnormality can be directly determined.

[0079] Combination Figure 3 As shown, the controller 103 is also used to close the liquid inlet valve 104 when it is determined that there is a sensor abnormality, and control the device to shut down after the current detection processing process of the device where the cache water tank is located is completed.

[0080] Based on this embodiment, when it is determined that there is a sensor abnormality, the liquid inlet valve 104 is closed to avoid the safety problem of liquid overflow caused by continuous input of liquid into the cache water volume when the sensor is abnormal. After the current detection processing process of the equipment where the cache water tank is located is completed, the equipment is controlled to shut down, which can ensure the smooth progress of the current detection processing process and improve the reliability of the equipment where the cache water tank is located.

[0081] In some embodiments, reference Figure 4 As shown, the device where the cache water tank is located further includes: a liquid inlet valve 104 arranged on the liquid inlet pipeline of the cache water tank, and the liquid inlet valve 104 is in communication connection with the controller 103;

[0082] The controller 103 is further used to control the state of the liquid inlet valve 104 according to the detection result of the abnormality detection of the cache water tank.

[0083] Among them, the liquid inlet valve 104 is a valve that can control the on-off and liquid volume of the liquid entering the cache water tank, and the specific implementation method of the liquid inlet valve 104 is not limited.

[0084] Based on this embodiment, a liquid inlet valve 104 is provided on the liquid inlet pipeline of the cache water tank to control the liquid inlet state of the cache water tank, such as whether liquid is being inducted and the amount of liquid inducted. The controller 103 is connected by communication with the liquid inlet valve 104, so that the state of the liquid inlet valve 104 can be controlled based on the detection results of the abnormality detection of the cache water tank.

[0085] Continue to refer Figure 4 , in some embodiments, the component further comprises a liquid meter 105, and the liquid meter 105 is communicatively connected with the controller 103;

[0086] The liquid meter 105 is used to monitor the liquid consumption of the cache water tank;

[0087] The controller 103 is further configured to perform abnormality detection on the first liquid level sensor 101 according to the received first detection signal and the consumed liquid amount.

[0088] Based on this embodiment, a liquid meter 105 is further provided to monitor the liquid consumption of the cache water tank, so that the first liquid level sensor 101 can be detected for abnormality based on the liquid consumption and the first detection signal.

[0089] The method of detecting anomalies according to the amount of consumed liquid is not limited. In some embodiments, the controller 103 is further configured to determine that a sensor abnormality exists when the amount of consumed liquid is greater than or equal to the control amount of liquid during the continuous reception of the first detection signal. The sensor abnormality may be that the first liquid level sensor 101 has a false triggering abnormality.

[0090] refer to Figure 5 As shown, when S1 is continuously 1, it means that the controller 103 continuously receives the first detection signal, which means that the liquid level in the cache water tank has reached a position above the height of the first water tank, and the consumed liquid volume is greater than or equal to the control liquid volume V2, which means that the actual liquid level in the cache water tank should be lower than the height of the first water tank. There is a contradiction between the two, so it can be determined that there is a sensor abnormality, and the first liquid level sensor 101 is abnormal.

[0091] In some embodiments, the controller 103 is also used to obtain real-time liquid inflow volume; if the real-time liquid inflow volume is less than the minimum liquid inflow volume, the first prompt information of abnormal liquid inflow is output; if the real-time liquid inflow volume is greater than the maximum liquid inflow volume, the opening of the liquid inlet valve 104 on the liquid inlet pipeline of the cache water tank is reduced.

[0092] Combination Figure 6 As shown, the real-time liquid inflow volume is recorded as Q. If the real-time liquid inflow volume Q is less than the minimum liquid inflow volume Qimin, it means that the recent liquid inflow volume is small, so the first prompt information of the liquid inflow abnormality is output to prompt that the recent liquid inflow volume is small, and it is necessary to check whether there is a liquid inflow abnormality to avoid liquid shortage and shutdown.

[0093] Based on this embodiment, it is also possible to detect whether the liquid inflow and liquid outflow are abnormal by obtaining the real-time liquid inflow volume, thereby further improving safety.

[0094] There is no limitation on the method of obtaining the real-time liquid intake amount, and several of the methods are described below with examples.

[0095] In some embodiments, the controller 103 is further used to obtain an average liquid supply duration of the most recent preset number of liquid supply processes, and determine the real-time liquid intake amount based on the controlled liquid volume and the average liquid supply duration.

[0096] The specific number of the preset times is not limited, and in some specific examples, the value of the preset times is greater than or equal to 3. In other examples, the value of the preset times is greater than or equal to 5.

[0097] Based on this embodiment, the average liquid supply time is determined in combination with the most recent preset number of liquid supply processes, and then the real-time liquid intake volume is determined in combination with the average liquid supply time of the controlled liquid volume, so that the real-time liquid intake volume takes into account the impact of the most recent preset number of liquid supply processes.

[0098] The controller 103 may directly calculate the average water supply duration of the most recent preset number of liquid supply processes to obtain the average liquid supply duration.

[0099] In other embodiments, the controller 103 is further used to obtain the water supply duration of the most recent preset number of liquid supply processes, calculate the average value after removing the maximum and minimum values ​​of each water supply time, and obtain the average liquid supply time.

[0100] Based on this embodiment, the average liquid supply time is determined in combination with the most recent preset number of liquid supply processes, and the average value is calculated after removing the maximum and minimum values ​​of each water supply time, thereby reducing the influence of the extreme values ​​of the maximum and minimum values ​​and improving the accuracy of the average liquid supply time.

[0101] Among them, when calculating the average value after removing the maximum and minimum values ​​of each water supply time, the preset number of times can be set to be greater than or equal to 5, so that after removing the maximum and minimum values, there can still be more than 3 water supply times to calculate the average value, which can improve the accuracy of the average liquid supply time.

[0102] In some embodiments, the controller 103 is further configured to determine the maximum liquid inflow volume as the real-time liquid inflow volume when the number of liquid supply processes of the device is less than the preset number.

[0103] Based on this embodiment, when the number of liquid supply processes of the device is less than the preset number, by determining the maximum liquid inflow as the real-time liquid inflow, whether there is an abnormality in the liquid inflow is considered according to the extreme case of the maximum liquid inflow, thereby improving the accuracy and fault tolerance of abnormality detection.

[0104] It is understandable that in other embodiments, the real-time liquid intake volume may also be obtained by other means, and the embodiments of the present application do not impose specific limitations on this.

[0105] In some embodiments, the controller 103 is also used to open the liquid inlet valve 104 when the cache water tank does not store liquid, and determine whether there is a sensor abnormality based on whether the first detection signal and the second detection signal are received, the maximum water replenishment time for the liquid inlet to reach the first water tank height, and the maximum water replenishment time for the liquid inlet to reach the second water tank height.

[0106] Based on this embodiment, when the cache water tank has not yet stored liquid, for example, the cache water tank is to be put into use for the first time, or after deep cleaning by emptying the liquid in the cache water tank, the liquid can be delivered to the cache water tank by opening the liquid inlet valve 104, and combined with whether the first detection signal and the second detection signal are received, the maximum water replenishment time when the liquid inflow reaches the height of the first water tank, and the maximum water replenishment time when the liquid inflow reaches the height of the second water tank, it is determined whether there is a sensor abnormality, thereby providing a basis for whether the cache water tank and the two liquid sensors are put into use, further improving the reliability and accuracy of the liquid level monitoring and control of the cache water tank, and improving safety.

[0107] In some embodiments, the controller 103 is further used to record a first timing duration after opening the liquid inlet valve 104. If the first timing duration reaches a first maximum water replenishment duration and the first detection signal is not received, it is determined that a sensor abnormality exists.

[0108] The first maximum water replenishment time is the time taken when liquid is input into the cache water tank until the liquid height reaches the first water tank height when the cache water tank is not filled with liquid. There is no limit to the way to obtain the first maximum water replenishment time. For example, the first maximum water replenishment time can be obtained by testing.

[0109] In order to reduce the amount of liquid used, in some embodiments of the present application, the controller 103 is also used to obtain the unit minimum liquid intake and the unit liquid consumption, and use the ratio of the first volume liquid to the first difference as the first maximum water replenishment time, and the first difference is the difference between the unit minimum liquid intake and the unit liquid consumption.

[0110] As mentioned above, the unit minimum liquid inflow is recorded as Qimin, and the unit liquid consumption is recorded as Qs. When the cache water tank is not filled with liquid, that is, when it is empty, the maximum time for inputting liquid into the cache water tank until the liquid height reaches the first water tank height H1, that is, the first maximum water replenishment time t1max≥(V3+V4+V5) / (Qimin-Qs) for inputting the first volume of liquid into the cache water tank.

[0111] Based on this embodiment, the first maximum water replenishment time can be obtained by calculation, and the ratio of the first volume of liquid to the difference between the unit minimum liquid intake and the unit liquid consumption is used as the first maximum water replenishment time. Therefore, the maximum time required for the liquid intake to reach the first water tank height of the cache water tank can be reasonably estimated, and this maximum time is used as the first maximum water replenishment time, thereby improving the accuracy of determining the first maximum water replenishment time.

[0112] Based on this embodiment, after opening the liquid inlet valve 104, if the first timing duration reaches the first maximum water replenishment duration, it means that theoretically the liquid intake should have reached the first water tank height of the cache water tank, but the first detection signal of the first liquid level sensor 101 set at the first water tank height is not received, so it can be determined that there is a sensor abnormality, and the sensor abnormality is that there is an abnormality in the first liquid level sensor 101.

[0113] In some embodiments, the controller 103 is further configured to, before the first timing duration reaches the first maximum water replenishment duration, receive the first detection signal and do not receive the second detection signal, restart the timing, and record the second timing duration;

[0114] If the second detection signal is received before the second timing duration reaches the second maximum water replenishment duration, it is determined that the first liquid level sensor 101 and the second liquid level sensor 102 are normal;

[0115] If the second detection signal is not received when the second timing duration reaches the second maximum water replenishment duration, it is determined that a sensor abnormality exists.

[0116] The second maximum water replenishment time is the time taken for liquid to be input into the cache water tank until the liquid height reaches the second water tank height when the water level of the cache water tank reaches the first water tank height. There is no limit to the method for obtaining the second maximum water replenishment time. For example, the second maximum water replenishment time can be obtained by testing when the water level of the cache water tank has reached the first water tank height.

[0117] In order to reduce the amount of liquid used, in some embodiments of the present application, the controller 103 is also used to use the ratio of the controlled liquid volume to the first difference as the second maximum water replenishment time.

[0118] As mentioned above, the unit minimum liquid inflow is recorded as Qimin, and the unit liquid consumption is recorded as Qs. After the water level reaches the height of the first water tank, the maximum time for further inputting liquid into the cache water tank until the liquid height reaches the second water tank height H2, that is, the second maximum water replenishment time t2max≥V2 / (Qimin-Qs).

[0119] Based on this embodiment, by taking the ratio of the control liquid volume to the difference between the unit minimum liquid intake volume and the unit liquid consumption volume as the second maximum water replenishment time, it is possible to reasonably estimate the maximum time required for the liquid intake volume to reach the second water tank height from the first water tank height of the cache water tank, and take this maximum time as the second maximum water replenishment time, thereby improving the accuracy of determining the second maximum water replenishment time.

[0120] Based on this embodiment, a first detection signal is received before the first timing duration reaches the first maximum water replenishment duration, indicating that the first liquid level sensor 101 is normal; if a second detection signal is received before the re-timed second timing duration reaches the second maximum water replenishment duration, indicating that the second liquid level sensor 102 is normal; otherwise, it can be determined that there is a sensor abnormality, and the abnormality is in the second liquid level sensor 102, thereby improving the accuracy of sensor abnormality detection.

[0121] refer to Figure 7 As shown, when determining whether there is an abnormality in the first liquid level sensor 101 and the second liquid level sensor 102 when there is no liquid stored in the cache tank, the liquid inlet valve can be opened and the timing of the first timing duration T1 can be started when the output signals of the first liquid level sensor 101 and the second liquid level sensor 102 are both 0.

[0122] While the liquid inlet valve is continuously opened, the output signals of the first liquid level sensor 101 and the second liquid level sensor 102 are continuously monitored.

[0123] If the output signals of the first liquid level sensor 101 and the second liquid level sensor 102 are still 0 when the first timing duration T1 reaches the first maximum water replenishment duration t1max, it means that the inflow volume should theoretically have reached the first water tank height of the cache water tank, but the first detection signal of the first liquid level sensor 101 set at the first water tank height is not received, so it can be determined that there is a sensor abnormality, and the sensor abnormality is an abnormality in the first liquid level sensor 101. Therefore, the inlet valve can be closed, and after the current test processing process of the device where the cache water tank is located is completed, the device can be controlled to shut down.

[0124] If the first timing duration T1 has not reached the first maximum water replenishment duration t1max, and the first detection signal of the first liquid level sensor 101 arranged at the first water tank height is received, that is, S1=1, and S2=0, the liquid inlet valve continues to be kept open and the timing of the second timing duration T2 is restarted.

[0125] If the output signal of the second liquid level sensor 102 is still 0 when the second timing duration T2 reaches the second maximum water replenishment duration t2max, that is, the second detection signal of the second liquid level sensor 102 has not been received, it means that the liquid inflow should theoretically have reached the second water tank height of the cache water tank, but the second detection signal of the second liquid level sensor 102 set at the second water tank height has not been received, so it can be determined that there is a sensor abnormality, and the sensor abnormality is an abnormality in the second liquid level sensor 102. Therefore, the liquid inlet valve can be closed, and after the current test processing process of the device where the cache water tank is located is completed, the device can be controlled to shut down.

[0126] If the second timing duration T2 does not reach the second maximum water replenishment duration t2max, the second detection signal of the second liquid level sensor 102 set at the second water tank height is received, that is, S1=1, and S2=1, then it is determined that the first liquid level sensor 101 and the second liquid level sensor 102 are both normal.

[0127] When it is determined that the first liquid level sensor 101 and the second liquid level sensor 102 are both normal, if the scenario is to test the sensors, the liquid inlet valve can be closed. If the cache water tank is put into use for the first time, it can be determined that the cache water tank can be put into use, and the liquid inlet valve can be closed. And during the use of the equipment where the cache water tank is located, combined with the liquid usage during the test process, when it is necessary to open the liquid inlet valve, the liquid inlet valve can be opened and the opening of the liquid inlet valve can be set. The embodiment of the present application does not impose specific restrictions on this.

[0128] Based on the liquid level monitoring and control component of the cache water tank in the embodiment described above, precise control and monitoring alarm of the cache liquid level in the cache water tank can be achieved with only two liquid level monitoring points, and when the monitoring sensor fails or fails, it can still ensure that the instrument will not overflow or flow empty abnormally, and at the same time, the currently applied test can be completed to avoid waste of samples and reagents.

[0129] Based on the liquid level monitoring and control component of the cache water tank as described above, the embodiment of the present application also provides a liquid level monitoring and control method for the cache water tank, referring to Figure 8 As shown, the method includes:

[0130] Step S801: monitoring whether a first detection signal of a first liquid level sensor is received, the first liquid level sensor being arranged at a first water tank height of the cache water tank, the first water tank height being a height position when the cache water tank stores a first volume of liquid, the first volume of liquid comprising the minimum safe volume of liquid that can prevent components of the device where the cache water tank is located from being damaged, the maximum volume of liquid consumed to complete the target test, and the sum of the timeout volume of liquid when the water replenishment times out, the first liquid level sensor outputting a first detection signal when detecting liquid;

[0131] Step S802: monitoring whether a second detection signal from a second liquid level sensor is received, the second liquid level sensor being arranged at a height of a second water tank when the cache water tank stores a second volume of liquid; wherein the second volume of liquid includes: the sum of the minimum safe volume of liquid, the maximum consumption volume of liquid, the timeout volume of liquid, and the control volume of liquid, and the second liquid level sensor outputs a second detection signal when detecting liquid;

[0132] Step S803: Perform cache water tank abnormality detection according to whether the first detection signal and the second detection signal are received.

[0133] In some embodiments, the method further includes: determining that a sensor abnormality exists when the second detection signal is received and the first detection signal is not received.

[0134] In some embodiments, the device where the cache water tank is located further includes: a liquid inlet valve disposed on a liquid inlet pipeline of the cache water tank;

[0135] The method also includes: controlling the state of the liquid inlet valve according to the detection result of the abnormality detection of the cache water tank.

[0136] In some embodiments, the method also includes: when the cache water tank does not store liquid, opening the liquid inlet valve, and determining whether there is a sensor abnormality based on whether the first detection signal and the second detection signal are received, the maximum water replenishment time for the liquid inlet to reach the first water tank height, and the maximum water replenishment time for the liquid inlet to reach the second water tank height.

[0137] In some embodiments, the method further includes: after opening the liquid inlet valve, recording a first timing duration, if the first detection signal is not received when the first timing duration reaches a first maximum water replenishment duration, determining that a sensor abnormality exists.

[0138] In some embodiments, the method further includes: before the first timing duration reaches the first maximum water replenishment duration, the first detection signal is received, and the second detection signal is not received, re-timing, and recording the second timing duration;

[0139] If the second detection signal is received before the second timing duration reaches the second maximum water replenishment duration, it is determined that the first liquid level sensor and the second liquid level sensor are normal;

[0140] If the second detection signal is not received when the second timing duration reaches the second maximum water replenishment duration, it is determined that a sensor abnormality exists.

[0141] In some embodiments, the method further includes: obtaining a unit minimum liquid intake and a unit liquid consumption, and taking a ratio of the first volume liquid to a first difference as the first maximum hydration duration, wherein the first difference is a difference between the unit minimum liquid intake and the unit liquid consumption.

[0142] In some embodiments, the method further includes: using the ratio of the controlled liquid volume to the first difference as the second maximum water replenishment time.

[0143] In some embodiments, the method further includes: when it is determined that there is a sensor abnormality, closing the liquid inlet valve, and controlling the device to shut down after the current detection processing process of the device where the cache water tank is located is completed.

[0144] In some embodiments, the capacity of the buffer water tank is the sum of the second liquid volume and the overtime surplus liquid volume;

[0145] The overtime remaining liquid volume is greater than or equal to the maximum value between the second difference and the second maximum liquid volume difference, and the second difference is the difference between the first maximum liquid volume difference and the control liquid volume;

[0146] The first maximum liquid volume difference is the product of the difference between the unit maximum liquid inflow volume and the unit minimum liquid inflow volume and the first maximum water replenishment time, and the second maximum liquid volume difference is the product of the difference between the unit maximum liquid inflow volume and the unit minimum liquid inflow volume and the second maximum water replenishment time.

[0147] In some embodiments, the overtime volume liquid amount is greater than or equal to the maximum value of the maximum water intake overtime consumption and the control liquid amount, and the maximum water intake overtime consumption is the product of the second maximum water replenishment time and the unit consumption liquid amount.

[0148] In some embodiments, the method further includes: monitoring the amount of liquid consumed by the cache water tank; and performing abnormality detection on the first liquid level sensor based on the received first detection signal and the amount of liquid consumed.

[0149] In some embodiments, the method further includes: when the consumed liquid volume is greater than or equal to the controlled liquid volume during the period of continuously receiving the first detection signal, determining that the first liquid level sensor has a false triggering anomaly.

[0150] In some embodiments, the method also includes: obtaining real-time liquid inflow volume; if the real-time liquid inflow volume is less than the minimum liquid inflow volume, outputting a first prompt message of abnormal liquid inflow; if the real-time liquid inflow volume is greater than the maximum liquid inflow volume, reducing the opening of the liquid inflow valve on the liquid inlet pipeline of the cache water tank.

[0151] In some embodiments, the method further includes: obtaining an average liquid supply duration of the most recent preset number of liquid supply processes, and determining the real-time liquid intake amount based on the controlled liquid amount and the average liquid supply duration.

[0152] In some embodiments, the method further includes: obtaining the water supply duration of the most recent preset number of liquid supply processes, calculating an average value after removing the maximum and minimum values ​​of each of the water supply durations, and obtaining the average liquid supply duration.

[0153] In some embodiments, the method further includes: when the number of liquid supply processes of the device is less than the preset number, determining the maximum liquid intake amount as the real-time liquid intake amount.

[0154] The specific limitations in the embodiments of the method for liquid level monitoring and control of one or more cache water tanks can be found in the above definitions of the liquid level monitoring and control components of the cache water tanks, which will not be repeated here.

[0155] It should be understood that, although the various steps in the flowcharts involved in the above-mentioned embodiments are displayed in sequence according to the indication of the arrows, these steps are not necessarily executed in sequence according to the order indicated by the arrows. Unless there is a clear explanation in this article, the execution of these steps does not have a strict order restriction, and these steps can be executed in other orders. Moreover, at least a part of the steps in the flowcharts involved in the above-mentioned embodiments can include multiple steps or multiple stages, and these steps or stages are not necessarily executed at the same time, but can be executed at different times, and the execution order of these steps or stages is not necessarily to be carried out in sequence, but can be executed in turn or alternately with other steps or at least a part of the steps or stages in other steps.

[0156] Based on the same inventive concept, the embodiment of the present application also provides a liquid level monitoring and control device for a cache water tank for implementing the liquid level monitoring and control method for a cache water tank involved above. The implementation scheme for solving the problem provided by the device is similar to the implementation scheme described in the above method, so the specific limitations in the embodiments of the liquid level monitoring and control device for one or more cache water tanks provided below can refer to the limitations of the liquid level monitoring and control method for the cache water tank above, and will not be repeated here.

[0157] In one embodiment, Fig. 9 As shown, a liquid level monitoring and control device for a cache water tank is provided, comprising: a signal receiving module 901 and an abnormality detection module 902, wherein:

[0158] The signal receiving module 901 is used to receive a first detection signal of a first liquid level sensor and a second detection signal of a second liquid level sensor. The first liquid level sensor is arranged at a first water tank height of the cache water tank. The first water tank height is a height position when the cache water tank stores a first volume of liquid. The first volume of liquid includes the minimum safe volume of liquid that can prevent the components of the equipment where the cache water tank is located from being damaged, the maximum consumption volume of liquid required to complete the target test, and the sum of the timeout volume of liquid when the water replenishment times out. The first liquid level sensor outputs a first detection signal when liquid is detected. The second liquid level sensor is arranged at a second water tank height when the cache water tank stores a second volume of liquid. The second volume of liquid includes: the sum of the minimum safe volume of liquid, the maximum consumption volume of liquid, the timeout volume of liquid, and the control liquid. The second liquid level sensor outputs a second detection signal when liquid is detected.

[0159] The abnormality detection module 902 is used to perform abnormality detection on the cache water tank according to whether the first detection signal and the second detection signal are received.

[0160] In some embodiments, the abnormality detection module 902 is further configured to determine that a sensor abnormality exists when the second detection signal is received and the first detection signal is not received.

[0161] In some embodiments, the device where the cache water tank is located further includes: a liquid inlet valve disposed on a liquid inlet pipeline of the cache water tank;

[0162] The abnormality detection module 902 is also used to control the state of the liquid inlet valve according to the detection result of the abnormality detection of the cache water tank.

[0163] In some embodiments, the abnormality detection module 902 is also used to open the liquid inlet valve when the cache water tank does not store liquid, and determine whether there is a sensor abnormality based on whether the first detection signal and the second detection signal are received, the maximum water replenishment time for the liquid inlet to reach the first water tank height, and the maximum water replenishment time for the liquid inlet to reach the second water tank height.

[0164] In some embodiments, the abnormality detection module 902 is further used to record a first timing duration after the liquid inlet valve is opened. If the first timing duration reaches a first maximum water replenishment duration and the first detection signal is not received, it is determined that a sensor abnormality exists.

[0165] In some embodiments, the abnormality detection module 902 is also used to receive the first detection signal before the first timing duration reaches the first maximum water replenishment duration, and if the second detection signal is not received, re-timing and recording the second timing duration; if the second detection signal is received before the second timing duration reaches the second maximum water replenishment duration, it is determined that the first liquid level sensor and the second liquid level sensor are normal; if the second detection signal is not received when the second timing duration reaches the second maximum water replenishment duration, it is determined that there is a sensor abnormality.

[0166] In some embodiments, the abnormality detection module 902 is also used to obtain the unit minimum liquid intake and the unit liquid consumption, and use the ratio of the first volume liquid to the first difference as the first maximum water replenishment time, and the first difference is the difference between the unit minimum liquid intake and the unit liquid consumption.

[0167] In some embodiments, the abnormality detection module 902 is further configured to use the ratio of the controlled liquid volume to the first difference as the second maximum water replenishment time.

[0168] In some embodiments, the abnormality detection module 902 is also used to close the liquid inlet valve when it is determined that there is a sensor abnormality, and control the device to shut down after the current detection processing process of the device where the cache water tank is located is completed.

[0169] In some embodiments, the capacity of the buffer water tank is the sum of the second liquid volume and the overtime surplus liquid volume;

[0170] The overtime remaining liquid volume is greater than or equal to the maximum value between the second difference and the second maximum liquid volume difference, and the second difference is the difference between the first maximum liquid volume difference and the control liquid volume;

[0171] The first maximum liquid volume difference is the product of the difference between the unit maximum liquid inflow volume and the unit minimum liquid inflow volume and the first maximum water replenishment time, and the second maximum liquid volume difference is the product of the difference between the unit maximum liquid inflow volume and the unit minimum liquid inflow volume and the second maximum water replenishment time.

[0172] In some embodiments, the overtime volume liquid amount is greater than or equal to the maximum value of the maximum water intake overtime consumption and the control liquid amount, and the maximum water intake overtime consumption is the product of the second maximum water replenishment time and the unit consumption liquid amount.

[0173] In some embodiments, the abnormality detection module 902 is also used to monitor the liquid consumption of the cache water tank; and perform abnormality detection on the first liquid level sensor based on the received first detection signal and the liquid consumption.

[0174] In some embodiments, the abnormality detection module 902 is further used to determine that the first liquid level sensor has a false triggering abnormality when the consumed liquid volume is greater than or equal to the controlled liquid volume during the period of continuously receiving the first detection signal.

[0175] In some embodiments, the abnormality detection module 902 is also used to obtain the real-time liquid inflow volume; if the real-time liquid inflow volume is less than the minimum liquid inflow volume, the first prompt information of the liquid inflow abnormality is output; if the real-time liquid inflow volume is greater than the maximum liquid inflow volume, the opening of the liquid inlet valve on the liquid inlet pipeline of the cache water tank is reduced.

[0176] In some embodiments, the abnormality detection module 902 is further used to obtain the average liquid supply duration of the most recent preset number of liquid supply processes, and determine the real-time liquid intake volume based on the controlled liquid volume and the average liquid supply duration.

[0177] In some embodiments, the abnormality detection module 902 is also used to obtain the water supply duration of the most recent preset number of liquid supply processes, and calculate the average value after removing the maximum and minimum values ​​of each of the water supply durations to obtain the average liquid supply duration.

[0178] In some embodiments, the abnormality detection module 902 is further used to determine the maximum liquid intake as the real-time liquid intake when the number of liquid supply processes of the device is less than the preset number.

[0179] Each module in the liquid level monitoring and control device of the above-mentioned cache water tank can be fully or partially implemented by software, hardware and their combination. The above-mentioned modules can be embedded in or independent of the processor in the computer device in the form of hardware, or can be stored in the memory of the computer device in the form of software, so that the processor can call and execute the corresponding operations of each of the above modules.

[0180] In one embodiment, an analyzer includes a cache water tank and also includes a liquid level monitoring and control component as described in any of the embodiments described above.

[0181] In one embodiment, an electronic device is provided, and the computer device can be a terminal, such as an analyzer. The electronic device includes a processor, a memory and a communication interface connected by a system bus, and in some examples, a display screen and an input device may also be included. Among them, the processor of the electronic device is used to provide computing and control capabilities. The memory of the electronic device includes a non-volatile storage medium and an internal memory. The non-volatile storage medium stores an operating system and a computer program. The internal memory provides an environment for the operation of the operating system and the computer program in the non-volatile storage medium. The communication interface of the computer device is used to communicate with an external terminal in a wired or wireless manner, and the wireless manner can be implemented through WIFI, a mobile cellular network, NFC (near field communication) or other technologies. When the computer program is executed by the processor, a liquid level monitoring control method is implemented. The display screen of the computer device can be a liquid crystal display screen or an electronic ink display screen, and the input device of the computer device can be a touch layer covered on the display screen, or a key, trackball or touchpad set on the computer device housing, or an external keyboard, touchpad or mouse, etc.

[0182] Accordingly, in one embodiment, an electronic device is provided, including a memory and a processor, wherein a computer program is stored in the memory, and when the processor executes the computer program, the liquid level monitoring control method described in any of the above embodiments is implemented.

[0183] In one embodiment, a computer-readable storage medium is provided, on which a computer program is stored. When the computer program is executed by a processor, the liquid level monitoring and control method described in any of the above embodiments is implemented.

[0184] In one embodiment, a computer program product is provided, including a computer program, which, when executed by a processor, implements the liquid level monitoring and control method described in any of the above embodiments.

[0185] Those skilled in the art can understand that all or part of the processes in the above-mentioned embodiment methods can be completed by instructing the relevant hardware through a computer program, and the computer program can be stored in a non-volatile computer-readable storage medium. When the computer program is executed, it can include the processes of the embodiments of the above-mentioned methods. Among them, any reference to the memory, database or other medium used in the embodiments provided in this application can include at least one of non-volatile and volatile memory. Non-volatile memory can include read-only memory (ROM), magnetic tape, floppy disk, flash memory, optical memory, high-density embedded non-volatile memory, resistive random access memory (ReRAM), magnetoresistive random access memory (MRAM), ferroelectric random access memory (FRAM), phase change memory (PCM), graphene memory, etc. Volatile memory can include random access memory (RAM) or external cache memory, etc. As an illustration and not limitation, RAM can be in various forms, such as static random access memory (SRAM) or dynamic random access memory (DRAM). The database involved in each embodiment provided in this application may include at least one of a relational database and a non-relational database. Non-relational databases may include distributed databases based on blockchains, etc., but are not limited to this. The processor involved in each embodiment provided in this application may be a general-purpose processor, a central processing unit, a graphics processor, a digital signal processor, a programmable logic device, a data processing logic device based on quantum computing, etc., but are not limited to this.

[0186] The technical features of the above embodiments may be combined arbitrarily. To make the description concise, not all possible combinations of the technical features in the above embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0187] The above-described embodiments only express several implementation methods of the present application, and the descriptions thereof are relatively specific and detailed, but they cannot be understood as limiting the scope of the present application. It should be pointed out that, for a person of ordinary skill in the art, several variations and improvements can be made without departing from the concept of the present application, and these all belong to the protection scope of the present application. Therefore, the protection scope of the present application shall be subject to the attached claims.

Claims

1. A liquid level monitoring and control component for a buffer water tank, characterized in that: The assembly includes a first liquid level sensor, a second liquid level sensor, and a controller; The first liquid level sensor is arranged at a first water tank height of the cache water tank, the first water tank height being a height position when the cache water tank stores a first volume of liquid, the first volume of liquid comprising a minimum safe volume of liquid that can prevent components of the device where the cache water tank is located from being damaged, a maximum volume of liquid consumed to complete a target test, and a sum of a timeout volume of liquid when the water replenishment times out, and the first liquid level sensor outputs a first detection signal when liquid is detected; The second liquid level sensor is arranged at the height of the second water tank when the cache water tank stores a second volume of liquid; wherein the second volume of liquid includes: the sum of the minimum safe volume of liquid, the maximum consumption volume of liquid, the timeout volume of liquid, and the control volume of liquid, and the second liquid level sensor outputs a second detection signal when detecting liquid; The controller is communicatively connected with the first liquid level sensor and the second liquid level sensor, and is used for performing abnormality detection of the cache water tank according to the received first detection signal and second detection signal.

2. The assembly according to claim 1, characterized in that The device where the cache water tank is located further includes: a liquid inlet valve arranged on the liquid inlet pipeline of the cache water tank, and the liquid inlet valve is communicatively connected with the controller; The controller is also used to control the state of the liquid inlet valve according to the detection result of the abnormality detection of the cache water tank.

3. The assembly according to claim 2, characterized in that The controller is also used to open the liquid inlet valve when the cache water tank does not store liquid, and determine whether there is a sensor abnormality based on whether the first detection signal and the second detection signal are received, the maximum water replenishment time for the liquid inlet to reach the height of the first water tank, and the maximum water replenishment time for the liquid inlet to reach the height of the second water tank.

4. The assembly according to claim 3, characterized in that The controller is further configured to record a first timing duration after the liquid inlet valve is opened, and if the first detection signal is not received when the first timing duration reaches a first maximum water replenishment duration, it is determined that a sensor abnormality exists.

5. The assembly according to claim 4, characterized in that The controller is further configured to, before the first timing duration reaches the first maximum water replenishment duration, receive the first detection signal and fail to receive the second detection signal, restart the timing, and record the second timing duration; If the second detection signal is received before the second timing duration reaches the second maximum water replenishment duration, it is determined that the first liquid level sensor and the second liquid level sensor are normal; If the second detection signal is not received when the second timing duration reaches the second maximum water replenishment duration, it is determined that a sensor abnormality exists.

6. The assembly according to any one of claims 2 to 5, characterized in that The controller is also used to close the liquid inlet valve when it is determined that there is a sensor abnormality, and control the device where the cache water tank is located to shut down after the current detection processing process of the device where the cache water tank is located is completed.

7. The assembly according to any one of claims 1 to 5, characterized in that The capacity of the buffer water tank is the sum of the second liquid volume and the overtime surplus liquid volume; The overtime remaining liquid volume is greater than or equal to the maximum value between the second difference and the second maximum liquid volume difference, and the second difference is the difference between the first maximum liquid volume difference and the control liquid volume; The first maximum liquid volume difference is the product of the difference between the maximum liquid inflow per unit time and the minimum liquid inflow per unit time and the first maximum water replenishment time, and the second maximum liquid volume difference is the product of the difference between the maximum liquid inflow per unit time and the minimum liquid inflow per unit time and the second maximum water replenishment time.

8. A method for monitoring and controlling the liquid level of a buffer water tank, characterized in that: The method comprises: Monitor whether a first detection signal from a first liquid level sensor is received, the first liquid level sensor is arranged at a first water tank height of the cache water tank, the first water tank height is a height position when the cache water tank stores a first volume of liquid, the first volume of liquid includes the minimum safe volume of liquid that can prevent components of the device where the cache water tank is located from being damaged, the maximum volume of liquid consumed to complete the target test, and the sum of the timeout volume of liquid when the water replenishment timeout occurs, and the first liquid level sensor outputs a first detection signal when liquid is detected; monitoring whether a second detection signal from a second liquid level sensor is received, wherein the second liquid level sensor is arranged at a height of a second water tank when the cache water tank stores a second volume of liquid; wherein the second volume of liquid includes: the sum of the minimum safe volume of liquid, the maximum consumption volume of liquid, the timeout volume of liquid, and the control volume of liquid, and the second liquid level sensor outputs a second detection signal when detecting liquid; Abnormality detection of the cache water tank is performed according to whether the first detection signal and the second detection signal are received.

9. An analyzer, comprising a buffer water tank, characterized in that: It also includes a liquid level monitoring and control component as described in any one of claims 1 to 7.

10. An electronic device comprising a memory and a processor, wherein the memory stores a computer program, wherein: When the processor executes the computer program, the steps of the method according to claim 8 are implemented.

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