A reagent preparation apparatus and a reagent preparation method

Abstract

The application provides a reagent preparation instrument and a reagent preparation method. The control device of the reagent preparation instrument can control a target device to enter a reagent preparation process from a first state to prepare reagents. The target device is at least one of a first liquid storage device, a second liquid storage device, a quantitative device and a mixing device of the reagent preparation instrument. When the state data of the target device collected by a detection device of the reagent preparation instrument is abnormal data, the control device controls the target device to be in a second state to detect the detection device. If the detection result of the detection device indicates that the detection device is normal, the target device is switched from the second state to the first state, so that the target device re-prepares reagents. The reagent preparation instrument provided by the application can re-prepare reagents when the detection device detects abnormal data and the detection result of the detection device indicates that the detection device is normal, so that the shutdown of the reagent preparation instrument caused by soft failure can be avoided, and the reagent preparation efficiency is improved.

Description

Technical Field

[0001] This invention relates to the field of reagent preparation, and in particular to a reagent preparation instrument and a reagent preparation method. Background Technology

[0002] The reagent preparation device can reduce concentrated reagents and water to diluted reagents for use by the cell image analysis device. To ensure the normal operation of the reagent preparation device, it is equipped with several detection devices to monitor its working status during the reagent preparation process.

[0003] During the operation of the reagent preparation device, if the detection device detects an abnormality, the device will immediately shut down. After shutdown, manual intervention is required to manually inspect the device, which is labor-intensive and time-consuming, impacting reagent preparation efficiency. Summary of the Invention

[0004] The technical problem to be solved by this invention is to provide a reagent preparation instrument and a reagent preparation method that can improve the efficiency of reagent preparation. The specific solution is as follows:

[0005] According to a first aspect of the present invention, a reagent preparation apparatus is provided, comprising:

[0006] A first liquid storage device is used to store a first type of liquid to be mixed.

[0007] A second liquid storage device is used to store the second type of liquid to be mixed.

[0008] A metering device is used to obtain a first type of liquid to be mixed from the first liquid storage device in a first preset volume, and to obtain a second type of liquid to be mixed from the second liquid storage device in a second preset volume;

[0009] A mixing device is used to mix the first type of liquid to be mixed and the second type of liquid to be mixed obtained by the quantitative device to obtain a reagent;

[0010] A detection device is used to collect status data of a target device, wherein the target device is at least one of the first liquid storage device, the second liquid storage device, the metering device, and the mixing device.

[0011] A control device is used to control the target device to enter the reagent preparation process from a first state to prepare reagents. When the state data collected by the detection device is abnormal, the control device is set to a second state to detect the detection device. If the detection result of the detection device indicates that the detection device is normal, the target device is switched from the second state to the first state to prepare reagents again. The first state indicates that the target device is in the preparation stage of reagent preparation, and the second state indicates that the reagent preparation of the target device has been stopped.

[0012] Optionally, in the above-mentioned reagent preparation apparatus, the control device is used to control the liquid level of the target device to reach a preset initial liquid level, which is the liquid level at the start of reagent preparation.

[0013] Optionally, in the above-mentioned reagent preparation apparatus, the control device is used to control the liquid level in the first liquid storage device to reach a preset first initial liquid level, the liquid level in the second liquid storage device to reach a preset second initial liquid level, and the liquid in the mixing device to be emptied.

[0014] Optionally, in the aforementioned reagent preparation instrument, the control device is used to determine the operating sequence of the target device when the detection device collects abnormal data; and to perform a reset operation corresponding to the operating sequence on the target device.

[0015] Optionally, in the above-mentioned reagent preparation instrument, the control device is used to inject a first type of liquid to be mixed into the first storage device, inject a second type of liquid to be mixed into the second storage device, and drain the liquid in the quantitative device and the mixing device when the working sequence is a reagent preparation sequence or a quantitative device maintenance sequence.

[0016] Optionally, in the aforementioned reagent preparation apparatus, the control device is used to inject a first type of liquid to be mixed into the first liquid storage device when the working sequence is the first liquid storage sequence.

[0017] Optionally, in the aforementioned reagent preparation apparatus, the control device is used to inject a second type of liquid to be mixed into the second liquid storage device when the working sequence is the second liquid storage sequence.

[0018] Optionally, in the reagent preparation apparatus described above, the control device is used to control the target device to enter the second state when it is detected that the mixing device has completed the mixing of the first type of solution to be mixed and the second type of solution to be mixed.

[0019] Optionally, in the reagent preparation instrument described above, the control device is further configured to enter a shutdown state when the status data of the target device collected by the detection device multiple times consecutively are abnormal data.

[0020] Optionally, in the reagent preparation apparatus described above, when the detection device is a pressure sensor, the control device is used to:

[0021] Restart the gas source of the target device; the gas source is used to output pressure so that the target device can draw in or discharge liquid when the gas circuit valve of the target device is open;

[0022] Acquire the pressure monitoring data currently collected by the detection device;

[0023] Detect whether the pressure monitoring data is within the preset standard pressure range;

[0024] If the pressure monitoring data is within the standard pressure range, then the detection result of the detection device indicates that the detection device is normal.

[0025] If the pressure monitoring data is not within the standard pressure range, then the detection result of the detection device is determined to indicate that the detection device is abnormal.

[0026] Optionally, in the reagent preparation apparatus described above, when the detection device is a liquid level sensor, the control device is used for:

[0027] The liquid in the target device is controlled to reach a preset first liquid level and a preset second liquid level, respectively, and first liquid level monitoring data and second liquid level monitoring data are acquired; the first liquid level monitoring data is collected by the detection device when the liquid in the target device reaches the first liquid level; the second liquid level monitoring data is collected by the detection device when the liquid in the target device reaches the second liquid level.

[0028] Detect whether the first liquid level monitoring data matches the first liquid level, and whether the second liquid level monitoring data matches the second liquid level;

[0029] If the first liquid level monitoring data matches the first liquid level, and the second liquid level monitoring data matches the second liquid level, then the detection result of the detection device indicates that the detection device is normal.

[0030] If the first liquid level monitoring data does not match the first liquid level, and / or the second liquid level monitoring data does not match the second liquid level, then the detection result of the detection device is determined to indicate that the detection device is abnormal.

[0031] Optionally, in the reagent preparation instrument described above, the control device is further configured to determine whether the abnormality type of the detection result meets a preset stop preparation condition if the detection result indicates an abnormality of the detection device; if the abnormality type meets the stop preparation condition, the instrument enters a shutdown state.

[0032] Optionally, in the above-mentioned reagent preparation instrument, the control device is further configured to control the target device to continue executing the reagent preparation process if the abnormal type does not meet the stop preparation condition, and to enter the stop state when the mixing device is detected to have completed the mixing of the first type of solution to be mixed and the second type of solution to be mixed.

[0033] According to a second aspect of the present invention, a reagent preparation method is provided, which can be applied to a reagent preparation instrument, the method comprising:

[0034] The target device is controlled to enter the reagent preparation process from the first state to prepare the reagent; the target device is at least one of the first liquid storage device, the second liquid storage device, the quantitative device, and the mixing device of the reagent preparation instrument;

[0035] When the status data of the target device collected by the detection device of the reagent preparation instrument is abnormal, the target device is controlled to enter the second state to detect the detection device.

[0036] If the detection result of the detection device indicates that the detection device is normal, the target device is switched from the second state to the first state, so that the target device can re-prepare the reagent. The first state indicates that the target device is in the preparation stage of reagent preparation, and the second state indicates that the reagent preparation of the target device is stopped.

[0037] Optionally, in the above method, switching the target device from the second state to the first state includes:

[0038] The liquid level of the target device is controlled to reach a preset initial liquid level, which is the liquid level at the start of reagent preparation.

[0039] Optionally, in the above method, controlling the liquid level of the target device to reach a preset initial liquid level includes:

[0040] The system controls the liquid in the first liquid storage device to reach a preset first initial liquid level, the liquid in the second liquid storage device to reach a preset second initial liquid level, and the liquid in the mixing device to be drained.

[0041] Optionally, in the above method, switching the target device from the second state to the first state includes:

[0042] Determine the operating timing of the target device when the detection device collects abnormal data; perform a reset operation corresponding to the operating timing on the target device.

[0043] Optionally, in the above method, when the working sequence is a reagent preparation sequence or a quantitative device maintenance sequence, the step of performing a reset operation corresponding to the working sequence on the target device includes:

[0044] The first type of liquid to be mixed is injected into the first liquid storage device, the second type of liquid to be mixed is injected into the second liquid storage device, and the liquid in the metering device and the mixing device are emptied.

[0045] Optionally, in the above method, when the operating sequence is the first liquid storage sequence, performing a reset operation corresponding to the operating sequence on the target device includes:

[0046] The first type of liquid to be mixed is injected into the first liquid storage device.

[0047] Optionally, in the above method, when the operating sequence is the second liquid storage sequence, the step of performing a reset operation corresponding to the operating sequence on the target device includes:

[0048] The second type of liquid to be mixed is injected into the second liquid storage device.

[0049] Optionally, in the above method, controlling the target device to be in a second state includes:

[0050] When the mixing device is detected to have completed mixing the first type of liquid to be mixed and the second type of liquid to be mixed, the target device is controlled to enter the second state.

[0051] The above methods may also include:

[0052] When the detection device collects abnormal status data of the target device multiple times in a row, the reagent preparation instrument is controlled to enter a shutdown state.

[0053] Optionally, when the detection device is a pressure sensor, the above method includes detecting the detection device, which may include:

[0054] Restart the gas source of the target device; the gas source is used to output pressure so that the target device can draw in or discharge liquid when the gas circuit valve of the target device is open;

[0055] Acquire the pressure monitoring data currently collected by the detection device;

[0056] Detect whether the pressure monitoring data is within the preset standard pressure range;

[0057] If the pressure monitoring data is within the standard pressure range, then the detection result of the detection device indicates that the detection device is normal.

[0058] If the pressure monitoring data is not within the standard pressure range, then the detection result of the detection device is determined to indicate that the detection device is abnormal.

[0059] Optionally, when the detection device is a liquid level sensor, the step of detecting the detection device includes:

[0060] The liquid in the target device is controlled to reach a preset first liquid level and a preset second liquid level, respectively, and first liquid level monitoring data and second liquid level monitoring data are acquired; the first liquid level monitoring data is collected by the detection device when the liquid in the target device reaches the first liquid level; the second liquid level monitoring data is collected by the detection device when the liquid in the target device reaches the second liquid level.

[0061] Detect whether the first liquid level monitoring data matches the first liquid level, and whether the second liquid level monitoring data matches the second liquid level;

[0062] If the first liquid level monitoring data matches the first liquid level, and the second liquid level monitoring data matches the second liquid level, then the detection result of the detection device indicates that the detection device is normal.

[0063] If the first liquid level monitoring data does not match the first liquid level, and / or the second liquid level monitoring data does not match the second liquid level, then the detection result of the detection device is determined to indicate that the detection device is abnormal.

[0064] The above methods may also include:

[0065] If the detection result indicates that the detection device is abnormal, then determine whether the abnormality type of the detection result meets the preset stop preparation condition;

[0066] If the abnormality type meets the conditions for stopping preparation, the process will enter a shutdown state.

[0067] The above methods may also include:

[0068] If the abnormal type does not meet the stop preparation condition, the target device is controlled to continue executing the reagent preparation process. When the mixing device is detected to have completed the mixing of the first type of liquid to be mixed and the second type of liquid to be mixed, it enters the shutdown state.

[0069] Compared with the prior art, the present invention has the following advantages:

[0070] This invention provides a reagent preparation instrument and a reagent preparation method. The control device in the reagent preparation instrument can control a target device to enter the reagent preparation process from a first state to prepare reagents. The target device is at least one of the first liquid storage device, second liquid storage device, quantitative device, and mixing device of the reagent preparation instrument. When the state data of the target device collected by the detection device of the reagent preparation instrument is abnormal, the control device first controls the target device to a second state to detect the detection device. Then, if the detection result of the detection device indicates that the detection device is normal, the target device is switched from the second state to the first state, so that the target device can prepare reagents again. It should be noted that the reason why the state data of the target device collected by the detection device is abnormal may be due to some soft errors of the target device. These soft errors can be automatically resolved after re-entering the reagent preparation process from the first state. Therefore, by controlling the target device to switch from the second state to the first state, the control device can avoid the reagent preparation instrument from shutting down due to soft errors during the reagent preparation process, thereby improving the reagent preparation efficiency. Attached Figure Description

[0071] To more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on the provided drawings without creative effort.

[0072] Figure 1 This is a schematic diagram of the structure of a reagent preparation instrument provided by the present invention;

[0073] Figure 2 A schematic diagram of the structure of a target device provided by the present invention;

[0074] Figure 3 A flowchart of a reagent preparation method provided by the present invention;

[0075] Figure 4 The present invention provides a flowchart of a process for switching a target device from a second state to a first state. Detailed Implementation

[0076] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0077] In this application, the terms "comprising," "including," or any other variations thereof are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes said element.

[0078] Currently, in order to ensure the quality of reagents, reagent preparation instruments monitor their own status through detection devices and shut down when an abnormal status is detected, which greatly affects the efficiency of reagent preparation.

[0079] Through research, the inventors discovered that the anomaly might be caused by some soft errors. In this case, the problem can be solved by having the reagent preparation instrument prepare the reagent again. Therefore, in one feasible approach, after the detection device of the reagent preparation instrument detects an anomaly, the number of times the anomaly occurs is counted. If the number of times the anomaly occurs does not exceed a set threshold, the current reagent is discarded and reagent preparation continues. If the number of times the anomaly occurs exceeds the set threshold, the reagent preparation instrument is shut down. However, the anomaly detected by the detection device might also be caused by hard errors such as a malfunction of the detection device itself. If the detection device itself malfunctions, multiple reset operations will lead to waste of reagents.

[0080] Based on this, see Figure 1 The diagram below shows a reagent preparation device according to an embodiment of the present invention. The reagent preparation device may include: a first liquid storage device 101, a second liquid storage device 102, a quantitative device 103, a mixing device 104, a detection device 105, and a control device 106.

[0081] The first liquid storage device 101 can be used to store a first type of liquid to be mixed. In this embodiment of the invention, the first type of liquid to be mixed can be RO reverse osmosis water. In other embodiments, the first type of liquid to be mixed can also be various types of sample liquids such as blood samples and cell fluid samples, or various types of reagents.

[0082] The second liquid storage device 102 is used to store a second type of liquid to be mixed. In this embodiment of the invention, the second type of liquid to be mixed can be a concentrated reagent. In other embodiments, the second type of liquid to be mixed can be various types of sample solutions or other types of reagents.

[0083] The metering device 103 is used to obtain a first type of liquid to be mixed from a first liquid storage device in a first preset volume, and to obtain a second type of liquid to be mixed from a second liquid storage device in a second preset volume. The first type of liquid to be mixed in the first preset volume can be obtained by opening the liquid path between the metering device and the first liquid storage device, detecting the volume of liquid flowing through the liquid path by a sensor, and closing the liquid path after the volume reaches the first preset volume. Similarly, the metering device 103 can obtain a second type of liquid to be mixed in the second preset volume by referring to the method of obtaining the first type of liquid to be mixed.

[0084] The mixing device 104 is used to mix the first type of liquid to be mixed and the second type of liquid to be mixed obtained by the quantitative device to obtain a reagent. The reagent can be a mixture of the first type of liquid to be mixed and the second type of liquid to be mixed, or it can be a reactant of the first type of liquid to be mixed and the second type of liquid to be mixed.

[0085] The detection device 105 is used to collect the status data of the target device, which is at least one of the first liquid storage device 101, the second liquid storage device 103, the metering device 103, and the mixing device 104. The detection device can be a sensor for detecting the target device, such as a pressure sensor or a liquid level sensor. The pressure sensor can be a positive pressure sensor or a negative pressure sensor, and the liquid level sensor can be a float sensor, an electrode sensor, an optocoupler sensor, etc. The status data collected by the detection device can be pressure status data or liquid level status data, etc.

[0086] The control device 106 is used to control the target device to enter the reagent preparation process from the first state to prepare the reagent. When the status data collected by the detection device is abnormal, the target device is controlled to be in the second state to detect the detection device. If the detection result of the detection device indicates that the detection device is normal, the target device is switched from the second state to the first state to prepare the reagent again. The first state indicates that the target device is in the preparation stage of reagent preparation, and the second state indicates that the reagent preparation of the target device is stopped.

[0087] Specifically, after the control device switches the target device from the second state to the first state, it can control the target device to enter the reagent preparation process from the first state to re-prepare the reagent. Problems caused by soft errors during the re-preparation process will be resolved / eliminated during this process. Therefore, if the malfunction of the target device is due to a soft error, the control device can switch the target device from the second state to the first state, causing the reagent preparer to prepare the reagent again, i.e., restarting the preparation of a new reagent, thus automatically eliminating the malfunction of the target device caused by the soft error.

[0088] In this embodiment of the invention, the reagent preparation instrument can be any type of reagent preparation instrument, such as a concentrated reagent diluent, a sample preparation instrument, etc.

[0089] It should be noted that, Figure 1 The number of devices shown is merely exemplary, and any number of first liquid storage devices, second liquid storage devices, metering devices, mixing devices, detection devices, and control devices can be provided according to actual needs.

[0090] When the reagent preparation instrument provided in this embodiment of the invention detects abnormal status data of the target device collected by the detection device, the control device first detects the detection device. If the detection result of the detection device indicates that the detection result of the detection device is normal, the control device switches from the second state to the first state to re-prepare the reagent. This can avoid the reagent preparation instrument from shutting down due to soft errors during the reagent preparation process, thereby improving the reagent preparation efficiency. It can also avoid continuing to prepare reagents due to hard errors such as the failure of the detection device itself, reducing reagent waste.

[0091] In the embodiments provided by the present invention, based on the above-described scheme, the target device may specifically include at least one of a first liquid storage device, a second liquid storage device, a metering device, and a mixing device, wherein a detection device detects the state of at least one of the first liquid storage device, the second liquid storage device, the metering device, and the mixing device. Specifically, the first liquid storage device may be a water storage tank, the second liquid storage device may be a concentrated reagent storage tank, the metering device may be a reagent metering tank, and the mixing device may be a mixing tank.

[0092] See Figure 2 The present invention provides a schematic diagram of the structure of a target device. In this embodiment, taking the target device comprising a first liquid storage device, a second liquid storage device, a metering device, and a mixing device as an example, the process of preparing the reagent is described as follows:

[0093] The first liquid storage device is equipped with one or more liquid level sensors, which are used to detect the liquid level in the first liquid storage device. These liquid level sensors can be float sensors. The first liquid storage device can obtain a first type of liquid to be mixed from the outside through a first liquid passage. A valve 1 is installed on this first liquid passage to control its opening or closing. The first liquid storage device is connected to a gas source through a first gas passage. A pressure sensor and a valve 2 are installed on this gas passage. Valve 2 controls the input of positive pressure or normal pressure into the first gas passage. When the first gas passage is under positive pressure, it can drive the first type of liquid to be mixed in the first liquid storage device to be discharged from a second liquid passage. The first liquid storage device is connected to a metering device through a second liquid passage. A valve 6 is installed on this second liquid passage to control its opening or closing.

[0094] The second liquid storage device is equipped with a liquid level sensor to detect the liquid level within it; this sensor can be a float sensor. The second liquid storage device is connected to N sources of the second type of liquid to be mixed via N third liquid passages. Each third liquid passage is equipped with a liquid passage valve (valve 3, valve 4) to control the opening and closing of its corresponding third liquid passage. When the liquid passage valve is open, the second liquid storage device can obtain the second type of liquid to be mixed from the outside through the corresponding third liquid passage. The second liquid storage device is connected to a gas source via a second gas passage, which is equipped with a pressure sensor and a valve 5. Valve 5 controls whether the second gas passage inputs negative or normal pressure. When the second gas passage is under negative pressure, the second liquid storage device can be driven to obtain the second type of liquid to be mixed through the third liquid passage. The second liquid storage device is connected to a metering device via a fourth liquid passage, which is equipped with a valve 7 to control the opening and closing of the fourth liquid passage.

[0095] The metering device can obtain a first preset volume of a first type of liquid to be mixed from a first storage device via a second liquid path; the metering device can also obtain a second preset volume of a second type of liquid to be mixed from a second storage device via a fourth liquid path, the ratio of the first preset volume to the second preset volume being set according to actual needs. The metering device is equipped with one or more level sensors for detecting the liquid level in the metering device, which can be electrode detection sensors or optocoupler detection sensors. The output of the metering device is connected to a mixing device via a fifth liquid path.

[0096] The mixing device can receive the first and second types of liquid to be mixed from the quantitative device through the fifth liquid path. The mixing device mixes the first and second types of liquid to be mixed to obtain reagents. The mixed reagents can be stored in a buffer tank and supplied to products such as blood cell analyzers, immunoassay analyzers, and coagulation analyzers. The mixing tank can be equipped with a liquid level sensor and a pressure sensor. The mixing device can be connected to a gas source through a third gas path. A valve 8 is installed on the third gas path. The valve 8 can control the input of negative pressure or normal pressure in the third gas path. When the third gas path is under negative pressure, the mixing device can be driven to obtain the first and second types of liquid to be mixed from the quantitative device. When the third gas path is under positive pressure, the mixing device can be driven to discharge the reagents into the buffer tank.

[0097] Optionally, the first liquid storage device, the second liquid storage device, the metering device, and the mixing device can all be equipped with waste liquid outlets, through which liquid can be discharged. The number and type of sensors in the target device can be set according to actual needs.

[0098] In one embodiment of the present invention, one way in which the control device controls the target device to switch from a second state to a first state is that the control device controls the liquid level of the target device to reach a preset initial liquid level, which is the liquid level when the reagent preparation begins, thereby switching the target device from the second state to the first state. The initial liquid level can be set to any liquid level according to actual needs. For different devices, the initial liquid level can be the same or different.

[0099] The control device can determine the current liquid level of the target device through the detection device. If the current liquid level of the target device is lower than the initial liquid level, liquid is discharged into the target device until the liquid level of the target device reaches the initial liquid level. If the current liquid level of the target device is higher than the initial liquid level, liquid is discharged from the target device until the liquid level of the target device reaches the initial liquid level. Specifically, the liquid can be discharged through the waste liquid outlet of the target device, or the liquid can be discharged from the target device to the next device. For example, the first liquid storage device and the second liquid storage device can discharge liquid from the waste liquid outlet, or the liquid can be discharged to the metering device. The metering device can discharge liquid from the waste liquid outlet, or the liquid can be discharged to the mixing device. The mixing device can discharge liquid from the waste liquid outlet, or the liquid can be discharged to the buffer tank.

[0100] In one embodiment of the present invention, the target device may include a first liquid storage device, a second liquid storage device, a metering device, and a mixing device. The initial liquid levels of these four devices may be different. For each device, the control device can control the first liquid storage device, the second liquid storage device, the metering device, and the mixing device to be at their respective matched initial liquid levels. For example, the control device can control the liquid level in the first liquid storage device to reach a preset first initial liquid level, the liquid level in the second liquid storage device to reach a preset second initial liquid level, and the liquid in the mixing device to be emptied. The control device may also not change the current liquid level in the mixing device, and may also empty the liquid in the metering device. The first initial liquid level may be the maximum liquid level of the first liquid storage device, and the second initial liquid level may be the maximum liquid level of the second liquid storage device.

[0101] In one embodiment of the present invention, the control device can switch the target device from a second state to a first state by performing a reset operation on the target device. After switching to the first state, the liquid level of the target device can reach a preset initial liquid level. The control device is used to determine the operating sequence of the target device when the detection device collects abnormal data; and to perform a reset operation corresponding to the operating sequence on the target device. The reset operations corresponding to different operating sequences can be the same or different.

[0102] The working sequence can be a reagent preparation sequence, a quantitative device maintenance sequence, a first liquid storage sequence, or a second liquid storage sequence, etc. The target device performs different actions under different working sequences. During the execution of these actions, a detection device collects the target device's status data. If the status data collected by the detection device is abnormal, and the detection device itself is functioning normally, the control device performs a reset operation corresponding to its current working sequence. This allows the target device to switch back to the first state and re-enter the reagent preparation process. This avoids the target device from shutting down due to soft errors, improving reagent preparation efficiency. The reset operation under different working sequences is explained below:

[0103] When the control device operates in a reagent preparation sequence or a quantitative device maintenance sequence, the reset operation performed on the target device can be as follows: injecting a first type of liquid to be mixed into the first storage device, injecting a second type of liquid to be mixed into the second storage device, and emptying the liquid in the quantitative device and the mixing device, thereby switching the first storage device, the second storage device, the quantitative device, and the mixing device from a second state to a first state. In the first state, the control device can control the liquid level in the first storage device to reach a preset first initial liquid level, the liquid level in the second storage device to reach a preset second initial liquid level, and the liquid in the mixing device and the quantitative device to be emptied.

[0104] When the operating sequence of the control device is the first liquid storage sequence, the reset operation performed on the target device can be: injecting the first type of liquid to be mixed into the first liquid storage device, thereby switching the first liquid storage device from the second state to the first state. In the first state, the control device can control the liquid level in the first liquid storage device to reach the preset first initial liquid level.

[0105] When the control device is in the second liquid storage sequence, it injects the second type of liquid to be mixed into the second liquid storage device, thereby switching the first liquid storage device from the second state to the first state. In the first state, the control device can control the liquid level in the second liquid storage device to reach the preset second initial liquid level.

[0106] In one embodiment of the present invention, a control device is configured to control the target device to enter the second state when it is detected that the mixing device has completed mixing the first type of solution to be mixed and the second type of solution to be mixed. Specifically, if the state data collected by the detection device is abnormal, the control device controls the target device to continue executing the current reagent preparation process until the mixing device completes mixing the first type of solution to be mixed and the second type of solution to be mixed obtained by the quantification device, and then enters the second state, where the detection device is detected.

[0107] In one embodiment of the present invention, the control device is further configured to enter a shutdown state when the status data of the target device collected by the detection device multiple times consecutively is abnormal data. Specifically, the control device can enter the shutdown state when the status data collected multiple times consecutively is of the same type of abnormal data or different types of abnormal data. If the detection result of the detection device indicates that the detection device is normal, and the status data collected by the detection device multiple times consecutively is abnormal data, it indicates that resetting the target device is unlikely to resolve the abnormality. In this case, the reagent preparation instrument can be shut down, thereby avoiding reagent waste caused by continuous resetting.

[0108] The way the control device determines malfunctions of the detection device varies depending on the type of the detection device. For example, when the detection device is a pressure sensor or a level sensor, the control device determines malfunctions differently. In some examples, when the detection device is a pressure sensor, the control device uses:

[0109] Restart the gas source of the target device; the gas source is used to output pressure so that the target device can draw in or discharge liquid when the gas circuit valve of the target device is open;

[0110] Acquire the pressure monitoring data currently collected by the detection device;

[0111] Detect whether the pressure monitoring data is within the preset standard pressure range;

[0112] If the pressure monitoring data is within the standard pressure range, then the detection result of the detection device indicates that the detection device is normal.

[0113] If the pressure monitoring data is not within the standard pressure range, then the detection result of the detection device is determined to indicate that the detection device is abnormal.

[0114] The process of restarting the gas source can be as follows: first, shut off the gas source, then turn it back on to restore the gas source output pressure. After restarting the gas source, determine whether the pressure monitoring data collected by the detection device is within the preset standard pressure range. This standard pressure range can be the output pressure range of the gas source. If the currently collected pressure monitoring data is within the standard pressure range, it indicates that the detection result indicates that the detection device is normal. If it is not within the standard pressure range, it indicates that the detection result of the detection device indicates that the detection device is abnormal.

[0115] Specifically, the reasons that may cause abnormalities in the detection results may include one or more of the following: detection device malfunction, gas path malfunction, gas path valve malfunction, and gas source malfunction.

[0116] In one embodiment of the present invention, when the detection device is a liquid level sensor, the control device is used for:

[0117] The liquid in the target device is controlled to reach a preset first liquid level and a preset second liquid level, respectively, and first liquid level monitoring data and second liquid level monitoring data are acquired; the first liquid level monitoring data is collected by the detection device when the liquid in the target device reaches the first liquid level; the second liquid level monitoring data is collected by the detection device when the liquid in the target device reaches the second liquid level.

[0118] Detect whether the first liquid level monitoring data matches the first liquid level, and whether the second liquid level monitoring data matches the second liquid level;

[0119] If the first liquid level monitoring data matches the first liquid level, and the second liquid level monitoring data matches the second liquid level, then the detection result of the detection device indicates that the detection device is normal.

[0120] If the first liquid level monitoring data does not match the first liquid level, and / or the second liquid level monitoring data does not match the second liquid level, then the detection result of the detection device is determined to indicate that the detection device is abnormal.

[0121] In this embodiment of the invention, the liquid level sensor can be any type of sensor such as a float sensor or an electrode sensor. The first liquid level and the second liquid level can be any liquid level; for example, the first liquid level can be empty, and the second liquid level can be full. First, the valve of the liquid path connected to the output end of the target device can be opened, and the valve of the liquid path connected to the input end of the target device can be closed, causing the target device to discharge liquid. After a preset first time period, the valve of the liquid path connected to the output end of the target device can be closed, thus making the liquid level in the target device empty, and the detection device acquires the first liquid level monitoring data when the liquid level in the target device is at the empty liquid level. Then, the control device can open the valve of the liquid path connected to the input end of the target device to input liquid into the target device. After a preset second time period, the valve of the liquid path connected to the input end of the target device is closed, thus making the liquid level in the target device full, and the detection device acquires the second liquid level monitoring data when the liquid level in the target device is full.

[0122] If the first liquid level monitoring data does not match the first liquid level, and / or the second liquid level monitoring data does not match the second liquid level, the detection result of the detection device indicates that the detection device is abnormal. The reasons for the detection result indicating that the detection device is abnormal may be one or more of the following: detection device itself is faulty, liquid storage tank is faulty, liquid circuit is faulty, and liquid circuit valve is faulty.

[0123] The reagent preparation instrument provided in this embodiment of the invention can accurately detect the detection results of the liquid level sensor.

[0124] In one embodiment of the present invention, based on the above-described scheme, optionally, the control device is further configured to determine whether the abnormality type of the detection result meets a preset stop preparation condition if the detection result indicates an abnormality of the detection device; if the abnormality type meets the stop preparation condition, then enter a shutdown state.

[0125] The control device can determine the risk level of the target device based on the type of anomaly in the detection results. If the risk level indicates that the target device may experience backflow or overflow risks, the anomaly type is determined to meet the conditions for stopping preparation, and the device enters a shutdown state. The shutdown state can be the state where the reagent preparation instrument is disconnected from the power supply. If the risk level indicates that the target device will not experience backflow or overflow risks, the anomaly type is determined to not meet the conditions for stopping preparation.

[0126] For example, if the detection device is a pressure sensor, and the difference between the pressure monitoring data of the pressure sensor and the boundary value of the standard pressure range is greater than the preset threshold, it indicates that the target device may be at risk of backflow. In this case, the control device controls the reagent preparation instrument to enter the shutdown state.

[0127] If the detection device is a float sensor, and the liquid level monitoring data collected by the float sensor when the liquid level of the target device is full does not match the full liquid level, it indicates that the target device may be at risk of overflow. At this time, the control device controls the reagent preparation instrument to enter the shutdown state, which can effectively avoid serious failure of the reagent preparation instrument.

[0128] In one embodiment of the present invention, based on the above-described solution, optionally, the control device is further configured to control the target device to continue executing the reagent preparation process if the abnormality type does not meet the stop preparation condition, and to enter a shutdown state when the mixing device is detected to have completed the mixing of the first type of solution to be mixed and the second type of solution to be mixed. This allows the target device to continue preparing reagents even when the abnormality type does not meet the stop preparation condition, and to enter a shutdown state after the reagent preparation is completed.

[0129] See Figure 3 The above is a flowchart of a reagent preparation method provided by an embodiment of the present invention. This reagent preparation method can be applied to the reagent preparation instrument in the above embodiment. The method includes:

[0130] S301: Control the target device to enter the reagent preparation process from the first state to prepare the reagent; the target device is at least one of the first liquid storage device, the second liquid storage device, the quantitative device and the mixing device of the reagent preparation instrument.

[0131] S302: When the status data of the target device collected by the detection device of the reagent preparation instrument is abnormal data, the target device is controlled to enter the second state to detect the detection device.

[0132] S303: If the detection result of the detection device indicates that the detection device is normal, the target device is switched from the second state to the first state, so that the target device re-prepares the reagent. The first state indicates that the target device is in the preparation stage of reagent preparation, and the second state indicates that the reagent preparation of the target device is stopped.

[0133] S304: If the detection result does not indicate an abnormality in the detection device, then determine whether the abnormality type of the detection result meets the preset stop preparation condition.

[0134] S305: If the abnormality type meets the stop preparation condition, then enter the shutdown state.

[0135] S306: If the abnormal type does not meet the stop preparation condition, the target device is controlled to continue to execute the reagent preparation process. When the mixing device is detected to have completed the mixing of the first type of liquid to be mixed and the second type of liquid to be mixed, it enters the stop state.

[0136] By applying the reagent preparation method provided in this embodiment of the invention, when the status data of the target device collected by the detection device is abnormal, the detection device is first tested. If the detection result of the detection device indicates that the detection result of the detection device is normal, the target device is controlled to switch from the second state to the first state to re-prepare the reagent. This can avoid the reagent preparation instrument from shutting down due to soft errors during the reagent preparation process, thereby improving the reagent preparation efficiency. It can also avoid continuing to prepare reagents due to hard errors such as the failure of the detection device itself, reducing reagent waste.

[0137] In the embodiments provided by the present invention, based on the above implementation process, specifically, switching the target device from the second state to the first state includes:

[0138] The liquid level of the target device is controlled to reach a preset initial liquid level, which is the liquid level at the start of reagent preparation.

[0139] In the embodiments provided by the present invention, based on the above implementation process, specifically, controlling the liquid level of the target device to reach a preset initial liquid level includes:

[0140] The system controls the liquid in the first liquid storage device to reach a preset first initial liquid level, the liquid in the second liquid storage device to reach a preset second initial liquid level, and the liquid in the mixing device to be drained.

[0141] In the embodiments provided by the present invention, based on the above implementation process, specifically, the step of switching the target device from the second state to the first state is as follows: Figure 4 As shown, it specifically includes:

[0142] S401: Determine the operating sequence of the target device when the detection device collects abnormal data.

[0143] S402: Perform a reset operation corresponding to the working timing on the target device, thereby switching the target device from the second state to the first state.

[0144] In the embodiments provided by the present invention, based on the above implementation process, specifically, when the working sequence is a reagent preparation sequence or a quantitative device maintenance sequence, the step of performing a reset operation corresponding to the working sequence on the target device includes:

[0145] The first type of liquid to be mixed is injected into the first liquid storage device, the second type of liquid to be mixed is injected into the second liquid storage device, and the liquid in the metering device and the mixing device are emptied.

[0146] In the embodiments provided by the present invention, based on the above implementation process, specifically, when the working sequence is the first liquid storage sequence, the step of performing a reset operation corresponding to the working sequence on the target device includes:

[0147] The first type of liquid to be mixed is injected into the first liquid storage device.

[0148] In the embodiments provided by the present invention, based on the above implementation process, specifically, when the working sequence is the second liquid storage sequence, the step of performing the reset operation corresponding to the working sequence on the target device includes:

[0149] The second type of liquid to be mixed is injected into the second liquid storage device.

[0150] In the embodiments provided by the present invention, based on the above implementation process, specifically, controlling the target device to be in the second state includes:

[0151] When the mixing device is detected to have completed mixing the first type of liquid to be mixed and the second type of liquid to be mixed, the target device is controlled to enter the second state.

[0152] In the embodiments provided by the present invention, based on the above implementation process, specifically, it also includes:

[0153] When the detection device collects abnormal status data of the target device multiple times in a row, the reagent preparation instrument is controlled to enter a shutdown state.

[0154] In the embodiments provided by the present invention, based on the above implementation process, specifically, when the detection device is a pressure sensor, the detection of the detection device includes:

[0155] Restart the gas source of the target device; the gas source is used to output pressure so that the target device can draw in or discharge liquid when the gas circuit valve of the target device is open;

[0156] Acquire the pressure monitoring data currently collected by the detection device;

[0157] Detect whether the pressure monitoring data is within the preset standard pressure range;

[0158] If the pressure monitoring data is within the standard pressure range, then the detection result of the detection device indicates that the detection device is normal.

[0159] If the pressure monitoring data is not within the standard pressure range, then the detection result of the detection device is determined to indicate that the detection device is abnormal.

[0160] In the embodiments provided by the present invention, based on the above implementation process, specifically, when the detection device is a liquid level sensor, the detection of the detection device includes:

[0161] The liquid in the target device is controlled to reach a preset first liquid level and a preset second liquid level, and first liquid level monitoring data and second liquid level monitoring data are acquired; the first liquid level monitoring data is collected by the detection device when the liquid in the target device reaches the first liquid level; the second liquid level monitoring data is collected by the detection device when the liquid in the storage tank reaches the second liquid level.

[0162] Detect whether the first liquid level monitoring data matches the first liquid level, and whether the second liquid level monitoring data matches the second liquid level;

[0163] If the first liquid level monitoring data matches the first liquid level, and the second liquid level monitoring data matches the second liquid level, then the detection result of the detection device indicates that the detection device is normal.

[0164] If the first liquid level monitoring data does not match the first liquid level, and / or the second liquid level monitoring data does not match the second liquid level, then the detection result of the detection device is determined to indicate that the detection device is abnormal.

[0165] The reagent preparation method disclosed in the above embodiments of the present invention has the same specific principle and execution process as the control device in the reagent preparation instrument disclosed in the above embodiments of the present invention. Please refer to the corresponding part of the reagent preparation instrument provided in the above embodiments of the present invention, and it will not be described again here.

[0166] This invention also provides a storage medium, which includes stored instructions, wherein when the instructions are executed, a control device of the reagent preparation instrument in which the storage medium is located executes the above-described reagent preparation method.

[0167] It should be noted that the various embodiments in this specification are described in a progressive manner, with each embodiment focusing on the differences from other embodiments. Similar or identical parts between embodiments can be referred to interchangeably. For apparatus embodiments, since they are basically similar to method embodiments, the description is relatively simple; relevant parts can be referred to the descriptions in the method embodiments.

[0168] Finally, it should be noted that in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. Without further limitations, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes said element.

[0169] For ease of description, the above apparatus is described by dividing it into various functional units. Of course, in implementing this invention, the functions of each unit can be implemented in one or more software and / or hardware components.

[0170] As can be seen from the above description of the embodiments, those skilled in the art can clearly understand that the present invention can be implemented by means of software plus necessary general-purpose hardware platforms. Based on this understanding, the technical solution of the present invention, or the part that contributes to the prior art, can be embodied in the form of a software product. This computer software product can be stored in a storage medium, such as ROM / RAM, magnetic disk, optical disk, etc., and includes several instructions to cause a computer device (which may be a personal computer, server, or network device, etc.) to execute the methods described in various embodiments or some parts of the embodiments of the present invention.

[0171] The reagent preparation instrument provided by the present invention has been described in detail above. Specific examples have been used to illustrate the principle and implementation of the present invention. The description of the above embodiments is only for the purpose of helping to understand the method and core idea of ​​the present invention. At the same time, for those skilled in the art, there will be changes in the specific implementation and application scope based on the idea of ​​the present invention. Therefore, the content of this specification should not be construed as a limitation of the present invention.

Claims

1. A reagent preparation instrument, characterized in that, include: A first liquid storage device is used to store a first type of liquid to be mixed. A second liquid storage device is used to store the second type of liquid to be mixed. A metering device is used to obtain a first type of liquid to be mixed from the first liquid storage device in a first preset volume, and to obtain a second type of liquid to be mixed from the second liquid storage device in a second preset volume; A mixing device is used to mix the first type of liquid to be mixed and the second type of liquid to be mixed obtained by the quantitative device to obtain a reagent; A detection device is used to collect status data of a target device, wherein the target device is at least one of the first liquid storage device, the second liquid storage device, the metering device, and the mixing device. A control device is used to control the target device to enter the reagent preparation process from a first state to prepare reagents. When the state data collected by the detection device is abnormal, the control device is set to a second state to detect the detection device. If the detection result of the detection device indicates that the detection device is normal, the target device is switched from the second state to the first state to prepare reagents again. The first state indicates that the target device is in the preparation stage of reagent preparation, and the second state indicates that the reagent preparation of the target device has been stopped.

2. The reagent preparation apparatus according to claim 1, characterized in that, The control device is used to control the liquid level of the target device to reach a preset initial liquid level, which is the liquid level at the start of reagent preparation.

3. The reagent preparation apparatus according to claim 2, characterized in that, The control device is used to control the liquid level in the first liquid storage device to reach a preset first initial liquid level, the liquid level in the second liquid storage device to reach a preset second initial liquid level, and the liquid in the mixing device to be drained.

4. The reagent preparation apparatus according to claim 1, characterized in that, The control device is used to determine the operating sequence of the target device when the detection device collects abnormal data; and to perform a reset operation corresponding to the operating sequence on the target device.

5. The reagent preparation apparatus according to claim 4, characterized in that, The control device is used to inject a first type of liquid to be mixed into the first storage device, inject a second type of liquid to be mixed into the second storage device, and drain the liquid in the quantitative device and the mixing device when the working sequence is a reagent preparation sequence or a quantitative device maintenance sequence.

6. The reagent preparation apparatus according to claim 4, characterized in that, The control device is used to inject a first type of liquid to be mixed into the first liquid storage device when the working sequence is the first liquid storage sequence.

7. The reagent preparation apparatus according to claim 4, characterized in that, The control device is used to inject a second type of liquid to be mixed into the second liquid storage device when the working sequence is the second liquid storage sequence.

8. The reagent preparation apparatus according to claim 1, characterized in that, The control device is used to control the target device to enter the second state when it detects that the mixing device has completed mixing the first type of liquid to be mixed and the second type of liquid to be mixed.

9. The reagent preparation apparatus according to claim 1, characterized in that, The control device is also used to enter a shutdown state when the status data of the target device collected by the detection device multiple times is abnormal data.

10. The reagent preparation apparatus according to any one of claims 1-9, characterized in that, When the detection device is a pressure sensor, the control device is used to: Restart the gas source of the target device; the gas source is used to output pressure so that the target device can draw in or discharge liquid when the gas circuit valve of the target device is open; Acquire the pressure monitoring data currently collected by the detection device; Detect whether the pressure monitoring data is within the preset standard pressure range; If the pressure monitoring data is within the standard pressure range, then the detection result of the detection device indicates that the detection device is normal. If the pressure monitoring data is not within the standard pressure range, then the detection result of the detection device is determined to indicate that the detection device is abnormal.

11. The reagent preparation apparatus according to any one of claims 1-9, characterized in that, When the detection device is a liquid level sensor, the control device is used for: The liquid in the target device is controlled to reach a preset first liquid level and a preset second liquid level, respectively, and first liquid level monitoring data and second liquid level monitoring data are acquired; the first liquid level monitoring data is collected by the detection device when the liquid in the target device reaches the first liquid level; the second liquid level monitoring data is collected by the detection device when the liquid in the target device reaches the second liquid level. Detect whether the first liquid level monitoring data matches the first liquid level, and whether the second liquid level monitoring data matches the second liquid level; If the first liquid level monitoring data matches the first liquid level, and the second liquid level monitoring data matches the second liquid level, then the detection result of the detection device indicates that the detection device is normal. If the first liquid level monitoring data does not match the first liquid level, and / or the second liquid level monitoring data does not match the second liquid level, then the detection result of the detection device is determined to indicate that the detection device is abnormal.

12. The reagent preparation apparatus according to any one of claims 1-9, characterized in that, The control device is further configured to determine whether the abnormality type of the detection result meets a preset stop preparation condition if the detection result indicates an abnormality of the detection device; if the abnormality type meets the stop preparation condition, then enter a shutdown state.

13. The reagent preparation apparatus according to claim 12, characterized in that, The control device is further configured to control the target device to continue executing the reagent preparation process if the abnormality type does not meet the stop preparation condition, and to enter the shutdown state when the mixing device is detected to have completed the mixing of the first type of solution to be mixed and the second type of solution to be mixed.

14. A method for preparing a reagent, characterized in that, The method, applied to the reagent preparation apparatus according to any one of claims 1-13, comprises: The target device is controlled to enter the reagent preparation process from the first state to prepare the reagent; the target device is at least one of the first liquid storage device, the second liquid storage device, the quantitative device, and the mixing device of the reagent preparation instrument; When the status data of the target device collected by the detection device of the reagent preparation instrument is abnormal, the target device is controlled to enter the second state to detect the detection device. If the detection result of the detection device indicates that the detection device is normal, the target device is switched from the second state to the first state, so that the target device can re-prepare the reagent. The first state indicates that the target device is in the preparation stage of reagent preparation, and the second state indicates that the reagent preparation of the target device is stopped.

15. The method according to claim 14, characterized in that, Switching the target device from the second state to the first state includes: The liquid level of the target device is controlled to reach a preset initial liquid level, which is the liquid level at the start of reagent preparation.

16. The method according to claim 15, characterized in that, The control of the liquid level in the target device to reach a preset initial liquid level includes: The system controls the liquid in the first liquid storage device to reach a preset first initial liquid level, the liquid in the second liquid storage device to reach a preset second initial liquid level, and the liquid in the mixing device to be drained.

17. The method according to claim 14, characterized in that, Switching the target device from the second state to the first state includes: Determine the operating sequence of the target device when the detection device collects abnormal data; perform a reset operation corresponding to the operating sequence on the target device.

18. The method according to claim 17, characterized in that, When the operating sequence is a reagent preparation sequence or a quantitative device maintenance sequence, the step of performing a reset operation corresponding to the operating sequence on the target device includes: The first type of liquid to be mixed is injected into the first liquid storage device, the second type of liquid to be mixed is injected into the second liquid storage device, and the liquid in the metering device and the mixing device are emptied.

19. The method according to claim 17, characterized in that, When the operating timing is the first liquid storage timing, performing the reset operation corresponding to the operating timing on the target device includes: The first type of liquid to be mixed is injected into the first liquid storage device.

20. The method according to claim 17, characterized in that, When the operating timing is the second liquid storage timing, the step of performing a reset operation corresponding to the operating timing on the target device includes: The second type of liquid to be mixed is injected into the second liquid storage device.

21. The method according to claim 17, characterized in that, The control of the target device to be in a second state includes: When the mixing device is detected to have completed mixing the first type of liquid to be mixed and the second type of liquid to be mixed, the target device is controlled to enter the second state.

22. The method according to claim 14, characterized in that, Also includes: When the detection device collects abnormal status data of the target device multiple times in a row, the reagent preparation instrument is controlled to enter a shutdown state.

23. The method according to any one of claims 14-22, characterized in that, When the detection device is a pressure sensor, the detection of the detection device includes: Restart the gas source of the target device; the gas source is used to output pressure so that the target device can draw in or discharge liquid when the gas circuit valve of the target device is open; Acquire the pressure monitoring data currently collected by the detection device; Detect whether the pressure monitoring data is within the preset standard pressure range; If the pressure monitoring data is within the standard pressure range, then the detection result of the detection device indicates that the detection device is normal. If the pressure monitoring data is not within the standard pressure range, then the detection result of the detection device is determined to indicate that the detection device is abnormal.

24. The method according to any one of claims 14-22, characterized in that, When the detection device is a liquid level sensor, the detection of the detection device includes: The liquid in the target device is controlled to reach a preset first liquid level and a preset second liquid level, respectively, and first liquid level monitoring data and second liquid level monitoring data are acquired; the first liquid level monitoring data is collected by the detection device when the liquid in the target device reaches the first liquid level; the second liquid level monitoring data is collected by the detection device when the liquid in the target device reaches the second liquid level. Detect whether the first liquid level monitoring data matches the first liquid level, and whether the second liquid level monitoring data matches the second liquid level; If the first liquid level monitoring data matches the first liquid level, and the second liquid level monitoring data matches the second liquid level, then the detection result of the detection device indicates that the detection device is normal. If the first liquid level monitoring data does not match the first liquid level, and / or the second liquid level monitoring data does not match the second liquid level, then the detection result of the detection device is determined to indicate that the detection device is abnormal.

25. The method according to any one of claims 14-22, characterized in that, Also includes: If the detection result indicates that the detection device is abnormal, then determine whether the abnormality type of the detection result meets the preset stop preparation condition; If the abnormality type meets the conditions for stopping preparation, the process will enter a shutdown state.

26. The method according to claim 25, characterized in that, Also includes: If the abnormal type does not meet the stop preparation condition, the target device is controlled to continue executing the reagent preparation process. When the mixing device is detected to have completed the mixing of the first type of liquid to be mixed and the second type of liquid to be mixed, it enters the shutdown state.

Images