Fault monitoring method, controller, titration detection device and water supply system

Abstract

The embodiment of the present application discloses a fault monitoring method for a titration detection device, a controller, a titration detection device, and a water supply system. The fault monitoring method for the titration detection device includes: during the titration detection process, obtaining the optical parameters and / or electrical parameters of the object to be detected by the titration detection device; when the changes in the optical parameters and / or electrical parameters meet the preset conditions, determining that the titration detection process is abnormal. Through the embodiment of the present application, it is possible to determine whether the titration detection process is abnormal based on the optical parameters and / or electrical parameters of the object to be detected by the titration detection device, thereby enabling the self-check of the titration detection device, enabling timely detection of the fault of the titration detection device, and ensuring the reliability of the titration.

Description

Technical Field

[0001] Embodiments of the present application relate to the field of titration detection, and in particular to a fault monitoring method for a titration detection device, a controller, a titration detection device, and a water supply system. Background Art

[0002] Titration is an important detection method in the field of chemistry. By adding a titrant of known concentration to the object to be detected until the titrant reacts quantitatively with the object to be detected, the content of the specified substance in the object to be detected is calculated based on the amount of titrant added.

[0003] It should be noted that the above introduction to the technical background is only for the convenience of providing a clear and complete description of the technical solutions of the present application and for the convenience of understanding by those skilled in the art. It cannot be considered that the above technical solutions are well known to those skilled in the art simply because they are described in the background technology section of the present application. Summary of the invention

[0004] The inventors have found that when using a titration detection device to detect the content of a specified substance in an object to be detected, if the titration detection device fails, the detection cannot be carried out smoothly, and even if a detection result is obtained, the detection result is inaccurate.

[0005] In response to at least one of the above-mentioned problems, an embodiment of the present application provides a fault monitoring method, a controller, a titration detection device and a water supply system for a titration detection device, which can determine whether the titration detection process is abnormal based on the optical parameters and / or electrical parameters of the object to be detected by the titration detection device, thereby realizing self-inspection of the titration detection device, timely detecting the fault of the titration detection device, and ensuring the reliability of the titration.

[0006] The specific technical solution of the embodiment of this application is:

[0007] According to a first aspect of an embodiment of the present application, a fault monitoring method for a titration detection device is provided, the method comprising:

[0008] During the titration detection process, obtaining optical parameters and / or electrical parameters of the object to be detected by the titration detection device;

[0009] When the changes in the optical parameters and / or electrical parameters meet preset conditions, it is determined that the titration detection process is abnormal.

[0010] According to a second aspect of an embodiment of the present application, a controller is provided, wherein the controller is configured to execute the fault monitoring method of the titration detection device described in the first aspect.

[0011] According to a third aspect of an embodiment of the present application, a titration detection device is provided, the device comprising:

[0012] The controller described in the second aspect,

[0013] A pipeline and a first pump disposed in the pipeline;

[0014] The pipeline includes a first inlet, a titration liquid inlet;

[0015] The first pump allows the object to be detected and the titrant entering from the first inlet and the titrant inlet to flow in the pipeline.

[0016] According to a fourth aspect of an embodiment of the present application, a water supply system is provided, wherein the water supply system includes the titration detection device described in the third aspect.

[0017] The beneficial effect of the embodiments of the present application is that: whether the titration detection process is abnormal can be determined based on the optical parameters and / or electrical parameters of the object to be detected by the titration detection device, thereby enabling self-inspection of the titration detection device, and timely detecting faults of the titration detection device to ensure the reliability of the titration.

[0018] With reference to the following description and drawings, the specific embodiments of the present application are disclosed in detail, indicating the manner in which the principles of the present application can be adopted. It should be understood that the embodiments of the present application are not limited in scope. Within the spirit and scope of the appended claims, the embodiments of the present application include many changes, modifications and equivalents. The features described and / or shown for one embodiment can be used in one or more other embodiments in the same or similar manner, combined with the features in other embodiments, or replace the features in other embodiments. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] The drawings described herein are only for explanation purposes and are not intended to limit the scope of the present application in any way. In addition, the shapes and proportional dimensions of the various components in the drawings are only schematic, used to help understand the present application, and are not specifically limited to the shapes and proportional dimensions of the various components of the present application. Those skilled in the art can select various possible shapes and proportional dimensions to implement the present application according to the specific circumstances under the guidance of the present application.

[0020] Figure 1 is a flow chart of the fault monitoring method in the embodiment of the present application;

[0021] Figure 2 is another flow chart of the fault monitoring method in an embodiment of the present application;

[0022] Figure 3 is a structural schematic diagram of a titration detection device according to an embodiment of the present application;

[0023] Figure 4 is another structural schematic diagram of the titration detection device of an embodiment of the present application;

[0024] Figure 5 is a structural schematic diagram of a mixer according to an embodiment of the present application;

[0025] Figure 6 It is along Figure 5 A cross-sectional view of the mixer along the section line AA';

[0026] Figure 7 is another cross-sectional view of the mixer according to an embodiment of the present application;

[0027] Figure 8 is a schematic diagram of a water supply system according to an embodiment of the present application;

[0028] Fig. 9 It is a schematic diagram of a water supply system according to an embodiment of the present application.

[0029] Description of reference numerals:

[0030] 301-controller, 302-pipeline, 303-first pump, 304-mixer, 305-sensor, 306-detection object inlet tube, 307-second pump, 308-first outlet, 309-display input device, 3021-first inlet, 3022-titration liquid inlet, 3024-third pump, 3025-titration liquid inlet tube, 3042-second inlet, 3043-first outlet. DETAILED DESCRIPTION

[0031] The technical solution of the present invention will be described in detail below in conjunction with the accompanying drawings and specific embodiments. It should be understood that these embodiments are only used to illustrate the present application and are not used to limit the scope of the present invention. After reading the present invention, various equivalent forms of modifications to the present application by those skilled in the art all fall within the scope defined by the claims attached to the present application.

[0032] In the embodiments of the present application, the terms "first", "second", etc. are used to distinguish different elements in terms of title, but do not indicate the spatial arrangement or temporal order of these elements, etc., and these elements should not be limited by these terms. The term "and / or" includes any one and all combinations of one or more of the associated listed terms. The terms "comprising", "including", "having", etc. refer to the presence of the stated features, elements, components or components, but do not exclude the presence or addition of one or more other features, elements, components or components.

[0033] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as those commonly understood by those skilled in the art to which this application belongs. The terms used herein in the specification of this application are only for the purpose of describing specific embodiments and are not intended to limit this application. The term "and / or" used herein includes any and all combinations of one or more of the related listed items.

[0034] Embodiments of the first aspect

[0035] The embodiment of the first aspect of the present application provides a fault monitoring method for a titration detection device, Figure 1 is a flow chart of the fault monitoring method in the embodiment of the present application, such as Figure 1 As shown, the method includes:

[0036] 101, during the titration detection process, obtaining optical parameters and / or electrical parameters of the object to be detected of the titration detection device;

[0037] 102. When the change of the optical parameter and / or the electrical parameter meets the preset condition, it is determined that the titration detection process is abnormal.

[0038] Therefore, whether the titration detection process is abnormal can be determined based on the optical parameters and / or electrical parameters of the object to be detected by the titration detection device, thereby improving the reliability of the titration detection result.

[0039] In some embodiments, the titration detection process may include: an entry process of the object to be detected and / or a titration reaction process, and an abnormality in the titration detection process may include an abnormal entry process of the object to be detected, or an abnormal titration reaction process, or an abnormal entry process of the object to be detected and an abnormal titration reaction process.

[0040] In some embodiments, the process of the object to be detected entering may be the process of the object to be detected entering the titration detection device. The abnormality of the process of the object to be detected entering may, for example, mean that the object to be detected does not enter the titration detection device or the amount of the object to be detected entering the titration detection device does not reach a predetermined amount. The aforementioned abnormal scenarios will be illustrated in the embodiments of the third aspect described later, and will not be given one by one here.

[0041] In some embodiments, the titration reaction process may be a process in which the titration liquid enters the titration detection device and reacts with the object to be detected. The abnormality of the titration reaction process may, for example, mean that the titration liquid does not enter the titration detection device or the amount of the titration liquid entering the titration detection device does not reach a predetermined amount.

[0042] In some embodiments, the optical parameter may be any parameter that can characterize the characteristics of light. For example, it may be a light intensity-related parameter that characterizes the light intensity. However, the present application is not limited thereto, and the optical parameter may also be a parameter that characterizes the angle of light, etc. Alternatively, it may also be a color-related parameter that characterizes the color of light, such as a spectral range or the values ​​of R (red), G (green), and B (blue), etc.

[0043] In some embodiments, the electrical parameter may be a parameter in various forms capable of characterizing electrical characteristics, for example, it may be a parameter such as current, voltage, etc. The electrical parameter may be a light intensity-related parameter characterizing light intensity or a color-related parameter characterizing color, that is, the electrical parameter may be a voltage value characterizing light intensity, and the light intensity may be determined according to the voltage value, or the electrical parameter may be a voltage value representing R (red), G (green), and B (blue), and the corresponding color may be determined according to the obtained voltage value.

[0044] In some embodiments, the optical parameters and / or electrical parameters can be obtained by using a sensor or a terminal device with a camera function. For example, the titration detection device includes at least a light-transmitting section, and the sensor (such as a light intensity sensor or a color sensor) and the terminal device can obtain the optical parameters and / or electrical parameters of the object to be detected in the light-transmitting portion through the light-transmitting section in a non-contact manner. For example, a light signal or an electrical signal can be obtained by the sensor, an image can be obtained by the terminal device, and the optical parameters and / or electrical parameters can be extracted from the light signal or the electrical signal or the image. For details, please refer to the prior art and will not be repeated here. For the settings of the light-transmitting section and the sensor or the terminal device, please refer to the embodiment of the third aspect and will not be repeated here.

[0045] In some embodiments, the preset condition for determining whether an abnormality occurs in the titration detection process may be related to the degree of change in the optical parameters and / or electrical parameters of the object to be detected by the titration detection device before and after the titration detection process. For example, the preset condition may be that the change in the optical parameters and / or electrical parameters is not greater than a preset change.

[0046] For example, during the entry of the object to be detected, the preset condition may be a preset change amount related to the light intensity. During the entry of the object to be detected, when the change of the light intensity related parameter is not greater than the preset change related to the light intensity compared to the light intensity related parameter before the entry, it is determined that the entry process of the object to be detected is abnormal. For example, the object to be detected is water, and the light intensity when no water enters should be less than the light intensity when water enters, therefore. Before water enters the titration detection device, under the same lighting conditions, the light-transmitting section has a first light intensity; after the entry of the object to be detected, the light-transmitting section has a second light intensity. If the change amount from the first light intensity to the second light intensity is greater than the preset change related to the light intensity, it can be determined that the water has entered the titration detection device. If the change amount from the first light intensity to the second light intensity is less than or equal to the preset change related to the light intensity, it can be determined that the water has not entered the titration detection device, or that the water has not filled the titration detection device (for example, the pipeline of the titration detection device).

[0047] For another example, during the entry of the object to be detected, the preset condition may also be a preset change amount related to the color, for example, its content may be a change amount of the depth of the color, or a change mode of the type of color, etc. During the entry of the object to be detected, when the change of the color-related parameter is not greater than the preset change related to the color compared with the color-related parameter before the entry, it is determined that the entry process of the object to be detected is abnormal. For example, the object to be detected is water, and the change of the type of color is used as the preset change amount. After the titration detection device completes the previous titration detection, the light-transmitting segment has a first color. After the entry of the object to be detected, the light-transmitting segment changes from the first color to the second color (for example, red to blue), that is, the change of the color-related parameter is greater than the preset change related to the color, then it can be determined that the water has entered the titration detection device. If the light-transmitting segment does not change from the first color to the second color, that is, the change of the color-related parameter is not greater than the preset change related to the color, then it can be determined that the water has not entered the titration detection device, or the water has not filled the titration detection device (for example, the pipeline of the titration detection device).

[0048] For another example, during the process of the object to be detected entering, the preset condition may also be a preset change amount related to light intensity and a preset change amount related to color. When the change of the light intensity-related parameter is not greater than the preset change related to light intensity, and the change of the color-related parameter is not greater than the preset change related to color, it is determined that the process of the object to be detected entering is abnormal. By using both the preset change amount related to light intensity and the preset change amount related to color to determine whether the process of the object to be detected entering is abnormal, the accuracy of the judgment result can be further improved.

[0049] For example, during the titration reaction, the preset condition may be a preset variation associated with light intensity. During the titration reaction, after the titration instruction of the titrant is executed, when the change of the light intensity-related parameter is not greater than the preset variation associated with the light intensity, the titration abnormality of the titrant used in the titration reaction is determined. Alternatively, the preset condition may also be a preset variation associated with color. During the titration reaction, after the titration instruction of the titrant is executed, when the change of the color-related parameter is not greater than the preset variation associated with color, the titration abnormality of the titrant used in the titration reaction is determined. Alternatively, the preset condition may also be a preset variation associated with color and a preset variation associated with light intensity, whereby the use of these two to determine whether the titration reaction process is abnormal can further improve the accuracy of the judgment result.

[0050] The following is an example of a specific titrant to show how to determine whether the titration reaction process is abnormal.

[0051] In some embodiments, the titration solution may include one or more types. When there are multiple types of titration solutions, each titration solution may be added to the object to be detected in sequence according to a prescribed order, and the prescribed order may be one or more types. Alternatively, each titration solution may be added to the object to be detected at the same time, and the present application does not impose any specific limitation on this.

[0052] For example, the titration solution may include a first titration solution, a second titration solution and a third titration solution, and the first titration solution, the second titration solution and the third titration solution act together with the object to be detected, thereby detecting the concentration of a specified substance in the object to be detected. In some embodiments, the third titration solution may be added to the object to be detected after the first titration solution and the second titration solution, and the order of adding the first titration solution and the second titration solution may be arbitrarily set, for example, the first titration solution is in front, or the second titration solution is in front, or both are added at the same time, or the first titration solution, the second titration solution and the third titration solution may be added at the same time, and the embodiments of the present application are not limited thereto.

[0053] In some embodiments, when the titrant includes a first titrant, a second titrant and a third titrant, step 102 may include: determining a first titration anomaly and / or determining a second titration anomaly and / or determining a third titration anomaly.

[0054] In some embodiments, the step of determining that the titration of the first titrant is abnormal may include: after the titration instruction of the second titrant is executed first and the second titrant is titrated normally, comparing the light intensity-related parameters and / or color-related parameters after the titration instruction of the first titrant is executed with the light intensity-related parameters and / or color-related parameters before the titration instruction of the first titrant is executed, and determining that the titration of the first titrant is abnormal when the change in the light intensity-related parameters is not greater than a first preset change related to the light intensity, and / or when the change in the color-related parameters is not greater than a first preset change related to the color.

[0055] The above embodiment is exemplarily described by taking the use of light intensity-related parameters and a first preset change related to light intensity to determine whether the titration of the first titration solution is abnormal as an example.

[0056] In the above embodiment, the second titrant is first added to the object to be detected, and then the first titrant is added to the object to be detected. In the above process, after the second titrant is titrated normally, the light intensity related parameters are obtained as "the light intensity related parameters before the titration instruction of the first titrant is executed". After the first titrant is added to the object to be detected, the light intensity related parameters are obtained as "the light intensity related parameters after the titration instruction of the first titrant is executed". The changes between "the light intensity related parameters before the titration instruction of the first titrant is executed" and "the light intensity related parameters after the titration instruction of the first titrant is executed" are compared, and the comparison result is used as "the change of light intensity related parameters". Compare the "change of light intensity related parameters" and the first preset change related to light intensity. When the "change of light intensity related parameters" is not greater than the first preset change related to light intensity, it is determined that the titration of the first titrant is abnormal. When the "change of light intensity related parameters" is greater than the first preset change related to light intensity, it is determined that the titration of the first titrant is normal.

[0057] Since the "light intensity related parameters before the titration instruction of the first titration solution is executed" are obtained by real-time measurement after the second titration solution is normally titrated, and the "light intensity related parameters after the titration instruction of the first titration solution is executed" are obtained by real-time measurement after the first titration solution is added to the object to be detected, the external conditions when the two parameters are measured are relatively close, thereby reducing the influence of external conditions on the changes between the two parameters and improving the accuracy of the "changes in light intensity related parameters".

[0058] In the above embodiment, the color-related parameters and the first preset change related to the color can also be used to determine whether the titration of the first titrant is abnormal. For example, the second titrant is first added to the object to be detected, and then the first titrant is added to the object to be detected. In the above process, after the second titrant is titrated normally, the color-related parameters (color type) are obtained as "color-related parameters before the titration instruction of the first titrant is executed". After the first titrant is added to the object to be detected, the light intensity-related parameters are obtained as "color-related parameters after the titration instruction of the first titrant is executed". Compare the changes between the two. When there is no change from the first color to the second color, it is determined that the change of the color-related parameters is not greater than the first preset change related to the color, and it is determined that the titration of the first titrant is abnormal. When it changes from the first color to the second color, it is determined that the change of the color-related parameters is greater than the first preset change related to the color, and it is determined that the titration of the first titrant is normal.

[0059] In some embodiments, the light intensity related parameter and the first preset change related to the light intensity as well as the color related parameter and the first preset change related to the color are combined to determine whether the titration of the first titration solution is abnormal, which can further improve the accuracy of the judgment result.

[0060] In some embodiments, the step of determining that the titration of the first titrant is abnormal may also include: determining that the titration of the first titrant is abnormal when a change in the light intensity-related parameters after the titration instruction of the first titrant and the titration instruction of the second titrant are executed and the second titrant is titrated normally is not greater than a second preset change related to light intensity, and / or when a change in the color-related parameters after the titration instruction of the first titrant and the titration instruction of the second titrant are executed and the second titrant is titrated normally is not greater than a second preset change related to color, compared with the light intensity-related parameters and / or color-related parameters after only the titration instruction of the second titrant is executed and the second titrant is titrated normally.

[0061] The above embodiment is exemplarily described by taking the use of the light intensity-related parameter and the second preset change related to the light intensity to determine whether the titration of the first titration solution is abnormal as an example.

[0062] In the above embodiment, the order of adding the first titrant and the second titrant is not limited. "The light intensity related parameter after only the titration instruction of the second titrant is executed and the second titrant is titrated normally" can be a pre-generated parameter. After both the first titrant and the second titrant are added to the object to be detected and the second titrant is titrated normally, the current light intensity related parameter and the pre-generated light intensity related parameter are compared. When the change between the two is not greater than the second preset change related to the light intensity, it is determined that the titration of the first titrant is abnormal. When the change between the two is greater than the second preset change related to the light intensity, it is determined that the titration of the first titrant is normal.

[0063] Since the "light intensity related parameters after only the titration instruction of the second titrant is executed and the second titrant is titrated normally" are generated in advance, it is only necessary to obtain the light intensity related parameters once to determine whether the titration of the first titrant is abnormal, which can simplify the determination process. In addition, since the order of adding the first titrant and the second titrant is not limited, the determination process can be applied to various occasions.

[0064] In the above embodiment, the color-related parameters and the second preset change related to the color can also be used to determine whether the titration of the first titrant is abnormal. For example, "the color-related parameters after only the titration instruction of the second titrant is executed and the second titrant is titrated normally" can be pre-generated parameters (color types). After both the first titrant and the second titrant are added to the object to be detected and the second titrant is titrated normally, the current color-related parameters are compared with the pre-generated color-related parameters. When there is no change from the third color to the fourth color, it is determined that the change of the color-related parameters is not greater than the second preset change related to the color, and it is determined that the titration of the first titrant is abnormal. When it changes from the third color to the fourth color, it is determined that the change of the color-related parameters is greater than the second preset change related to the color, and it is determined that the titration of the first titrant is normal.

[0065] In some embodiments, the light intensity related parameter and the second preset change related to the light intensity as well as the color related parameter and the second preset change related to the color can be combined to determine whether the titration of the first titration solution is abnormal, which can further improve the accuracy of the judgment result.

[0066] In some embodiments, the step of determining that the titration of the second titrant is abnormal may include: determining that the titration of the second titrant is abnormal when a change in a light intensity-related parameter after the titration instruction of the second titrant is executed is not greater than a third preset change related to light intensity, compared with a light intensity-related parameter and / or a color-related parameter before the titration instruction of the second titrant is executed, and / or when a change in a color-related parameter after the titration instruction of the second titrant is executed is not greater than a third preset change related to color.

[0067] The above embodiment is exemplarily described by taking the use of the light intensity-related parameter and the third preset change related to the light intensity to determine whether the titration of the second titration solution is abnormal as an example.

[0068] In the above embodiment, it is not limited whether the first titrant has been added before the second titrant is added to the object to be detected. As long as the change between the light intensity related parameter before the titration instruction of the second titrant is executed and the light intensity related parameter after the titration instruction of the second titrant is executed is not greater than the third preset change related to light intensity, it can be determined that the titration of the second titrant is abnormal.

[0069] Since it is not limited whether the first titrant has been added before the second titrant is added to the object to be detected, the determination method can be applied to a variety of occasions. In addition, since the "light intensity related parameters before the titration instruction of the second titrant is executed" are obtained by real-time measurement before the titration instruction of the second titrant is executed, and the "light intensity related parameters after the titration instruction of the second titrant is executed" are obtained by real-time measurement after the titration instruction of the second titrant is executed, the external conditions when the two parameters are measured are relatively close, thereby reducing the influence of the external conditions on the changes between the two parameters and improving the accuracy of the changes between the two parameters.

[0070] In the above embodiment, the color-related parameters and the third preset change related to color can also be used to determine whether the titration of the first titrant is abnormal. For example, it is not limited whether the first titrant has been added before the second titrant is added to the object to be detected. As long as the change between the color-related parameters before the titration instruction of the second titrant is executed and the color-related parameters after the titration instruction of the second titrant is executed is not greater than the third preset change related to color, for example, there is no change from the fifth color to the sixth color, it can be determined that the titration of the second titrant is abnormal. On the contrary, if the change between the color-related parameters before the titration instruction of the second titrant is executed and the color-related parameters after the titration instruction of the second titrant is executed is greater than the third preset change related to color, for example, from the fifth color to the sixth color, it is determined that the titration of the second titrant is normal.

[0071] In some embodiments, the light intensity related parameters and the third preset change related to the light intensity as well as the color related parameters and the third preset change related to the color can be combined to determine whether the titration of the third titration solution is abnormal, which can further improve the accuracy of the judgment result.

[0072] In some embodiments, the step of determining that the titration of the second titrant is abnormal may also include: determining that the titration of the second titrant is abnormal when, compared with the light intensity-related parameters and / or color-related parameters before the first titrant is normally titrated, a change in the light intensity-related parameters after the titration instruction of the first titrant and the titration instruction of the second titrant are executed and the first titrant is normally titrated is not greater than a fourth preset change related to light intensity, and / or, a change in the color-related parameters after the titration instruction of the first titrant and the titration instruction of the second titrant are executed and the first titrant is normally titrated is not greater than a fourth preset change related to color.

[0073] The above embodiment is exemplarily described by taking the use of the light intensity-related parameter and the fourth preset change related to the light intensity to determine whether the titration of the second titration solution is abnormal as an example.

[0074] In the above embodiment, the difference from the aforementioned implementation mode is that after the second titrant is added first, the change of the light intensity related parameters before and after the addition of the second titrant is not immediately determined to determine whether the second titrant is titrated abnormally. Instead, after the first titrant is added, the "light intensity related parameters before the first titrant is titrated normally" are compared with the light intensity related parameters after the first titrant is titrated normally to determine whether the previously added second titrant is titrated abnormally. When the change of the two is not greater than the fourth preset change related to light intensity, it is determined that the second titrant is titrated abnormally.

[0075] In the above embodiment, the color-related parameters and the fourth preset change related to color can also be used to determine whether the titration of the second titrant is abnormal. For example, after the second titrant is added first, the change of the color-related parameters before and after the addition of the second titrant is not immediately determined to determine whether the second titrant is abnormally titrated. Instead, after the first titrant is added, the "color-related parameters before the first titrant is normally titrated" and the color-related parameters after the first titrant are normally titrated are compared to determine whether the previously added second titrant is abnormally titrated. When the change of the two is not greater than the fourth preset change related to color, for example, when there is no change from the seventh color to the eighth color, it is determined that the titration of the second titrant is abnormal. When the change of the two is greater than the fourth preset change related to color, for example, when the color changes from the seventh color to the eighth color, it is determined that the titration of the second titrant is normal.

[0076] In some embodiments, the light intensity related parameters and the fourth preset change related to the light intensity as well as the color related parameters and the fourth preset change related to the color can also be used to determine whether the titration of the second titration solution is abnormal, which can further improve the accuracy of the judgment result.

[0077] In some embodiments, the step of determining that the titration of the third titrant is abnormal may include: compared with the light intensity-related parameters and / or color-related parameters after only the titration instruction of the first titrant and the titration instruction of the second titrant are executed and the first titrant and the second titrant are titrated normally, when the change in the light intensity-related parameters after the titration instruction of the first titrant, the titration instruction of the second titrant, and the titration instruction of the third titrant are executed and the first titrant and the second titrant are titrated normally is not greater than the fifth preset change related to light intensity, and / or when the change in the color-related parameters after the titration instruction of the first titrant, the titration instruction of the second titrant, and the titration instruction of the third titrant are executed and the first titrant and the second titrant are titrated normally is not greater than the fifth preset change related to color.

[0078] For example, "light intensity related parameters and / or color related parameters after only the titration instructions of the first titrant and the second titrant are executed and the first and second titrants are titrated normally" can be pre-generated parameters, or can be parameters measured in real time. For example, the titration order of the first titrant and the second titrant is not limited. According to the "light intensity related parameters after the titration instructions of the first titrant, the second titrant, and the third titrant are executed and the first and second titrants are titrated normally" and the light intensity related parameters after only the titration instructions of the first titrant and the second titrant are executed and the first and second titrants are titrated normally, when the change between the two is not greater than the fifth preset change related to light intensity, it is determined that the titration of the third titrant is abnormal. When the change between the two is greater than the fifth preset change related to light intensity, it is determined that the titration of the third titrant is normal.

[0079] For example, the titration order of the first titrant and the second titrant is not limited. According to the "color-related parameters after the titration instructions of the first titrant, the second titrant, and the third titrant are executed and the first and second titrants are titrated normally" and the color-related parameters after only the titration instructions of the first titrant and the second titrant are executed and the first and second titrants are titrated normally, when the change of the two is not greater than the fifth preset change related to the color, for example, when there is no change from the ninth color to the tenth color, it is determined that the titration of the third titrant is abnormal. When the change of the two is greater than the fifth preset change related to the color, for example, when the color changes from the ninth color to the tenth color, it is determined that the titration of the third titrant is normal.

[0080] In some embodiments, the light intensity related parameters and the fifth preset change related to the light intensity as well as the color related parameters and the fifth preset change related to the color can also be used to determine whether the titration of the third titration solution is abnormal, which can further improve the accuracy of the judgment result.

[0081] In some embodiments, the preset change related to light intensity may include a preset value of the change in light intensity. For example, the preset value is set to 20%. When the light intensity change is not greater than 20%, it is determined that the change in the light intensity-related parameter is not greater than the preset change related to light intensity. When the light intensity change is greater than 20%, it is determined that the change in the light intensity-related parameter is greater than the preset change related to light intensity. The first color to the tenth color in the color-related preset change are related to the type of specific titrant and the titration detection type, as illustrated in the following examples.

[0082] In some embodiments, the titration detection process can detect the content of various specified substances in various objects to be detected, and the objects to be detected can be in the state of solid, liquid, gas, etc. For example, the titration detection process can detect the hardness of water, the content of heavy metals in liquid, etc.

[0083] In some embodiments, the first titrant may be an environmental regulator, which may adjust environmental parameters during the reaction, for example, adjust pH, etc. The second titrant may be an indicator, which may indicate the progress of the reaction, for example, indicating the titration endpoint by color change, etc. The third titrant may be a reactant, which may react with a specified substance in the object to be detected.

[0084] For example, the object to be detected can be water, and the titration detection process can detect the hardness of water. The first titrant can include an ammonia buffer solution, which can offset or reduce the effect of an external strong acid or base on the pH of the object to be detected to a certain extent, thereby keeping the pH value of the object to be detected relatively stable; the second titrant can include an chrome black T solution, which is red or blue after being dissolved in water, and the specific color is related to the pH value of the aqueous solution; the third titrant can include an EDTA (ethylenediaminetetraacetic acid) solution, which can combine with divalent metal ions such as Mg2+, Ca2+, Mn2+, and Fe2+. In this way, the hardness of water can be detected.

[0085] The following is an example of using color-related parameters to determine whether the titration reaction process is abnormal, where the first titration solution includes an ammonia buffer solution, the second titration solution includes an chrome black T solution, and the third titration solution includes an EDTA solution, to exemplify the method for determining whether the titration reaction process is abnormal.

[0086] In some embodiments, the change of color-related parameters is no greater than the first preset change and the second preset change related to color, which means that the change of the RGB value of the color represented by the color-related parameters does not exceed the first color threshold (for example, 5%); the change of color-related parameters is no greater than the third preset change related to color, which means that the color represented by the color-related parameters does not change from white to red or blue; the change of color-related parameters is no greater than the fourth preset change related to color, which means that the color represented by the color-related parameters does not change from white to red; the change of color-related parameters is no greater than the fifth preset change related to color, which means that the color represented by the color-related parameters does not change from red to blue.

[0087] Table 1 is a table showing the changes in water color and light intensity after ammonia buffer solution, chrome black T solution, and EDTA solution are added to water.

[0088] Regarding the first preset change and the second preset change related to light intensity:

[0089] During the titration reaction, the titration instruction of the chrome black T solution is first executed. When the chrome black T solution is titrated normally, the first light intensity value of the aqueous solution is detected. Then the titration instruction of the ammonia buffer solution is executed to detect the second light intensity value of the aqueous solution. If the change between the first light intensity value and the second light intensity value of the aqueous solution does not exceed the preset value of the change in light intensity (e.g., 20%), then the ammonia buffer solution is not titrated normally. If the change between the first light intensity value and the second light intensity value of the aqueous solution exceeds the preset value of the change in light intensity (e.g., 20%), then the ammonia buffer solution is titrated normally.

[0090] During the titration reaction, the titration instruction of the chrome black T solution and the titration instruction of the ammonia buffer are executed (the execution order of the two commands is not limited). When it is determined that the chrome black T solution is titrated normally, the second light intensity value of the aqueous solution is detected, that is, compared with the first light intensity value of the aqueous solution after the chrome black T solution is added to the water, the change of the first light intensity value and the second light intensity value does not exceed the preset value of the change of light intensity (for example, 20%), then the ammonia buffer solution is not titrated normally. If the change of the first light intensity value and the second light intensity value of the aqueous solution exceeds the preset value of the change of light intensity (for example, 20%), then the ammonia buffer solution is titrated normally.

[0091] Regarding the third and fourth preset changes:

[0092] During the titration reaction, the titration instruction of the chrome black T solution is executed (regardless of whether the ammonia buffer solution has been added). If the aqueous solution does not appear blue or red, the chrome black T solution is not titrated normally. That is, the change of the color-related parameter is not greater than the third preset change related to the color, which means that the color represented by the color-related parameter does not change from white (or colorless) to red or blue. If the aqueous solution appears blue or red, the chrome black T solution is titrated normally. That is, the change of the color-related parameter is greater than the third preset change related to the color, which means that the color represented by the color-related parameter changes from white (or colorless) to red or blue.

[0093] During the titration reaction, the titration instruction of the chrome black T solution and the titration instruction of the ammonia buffer solution are executed. If the ammonia buffer solution is titrated normally, and the aqueous solution does not appear red, then the chrome black T solution is not titrated normally. That is, the change of the color-related parameter is not greater than the fourth preset change related to the color, which means that the color represented by the color-related parameter does not change from white (or colorless) to red; if the aqueous solution appears red, then the chrome black T solution is titrated normally. That is, the change of the color-related parameter is not greater than the fourth preset change related to the color, which means that the color represented by the color-related parameter changes from white (or colorless) to red.

[0094] About the fifth preset changes:

[0095] When the specified chrome black T solution and ammonia buffer solution are added to water, the EDTA solution is titrated. After the EDTA solution reacts completely with the specified metal ions in the water, the color of the aqueous solution changes from red to blue. During the titration reaction, if the color of the aqueous solution does not change from red to blue after the titration instruction of the EDTA solution is executed, it means that the EDTA solution has not been titrated normally. That is, when the change of the color-related parameter is not greater than the fifth preset change related to the color, it means that the color represented by the color-related parameter has not changed from red to blue; if the color of the aqueous solution changes from red to blue, it means that the EDTA solution has been titrated normally. That is, when the change of the color-related parameter is greater than the fifth preset change related to the color, it means that the color represented by the color-related parameter changes from red to blue.

[0096] Table 1 The light intensity and color change of water after ammonia buffer solution, chrome black T solution and EDTA solution were added into water:

[0097]

[0098] In addition, as shown in Table 1, water without hardness can also be used to determine whether the titration of the chrome black T solution is abnormal. For example, after adding the chrome black T solution to water without hardness, if the color of the aqueous solution does not change from colorless to blue, then the titration of the chrome black T solution is abnormal. The specific judgment process is similar to that of water with hardness, and no examples are given here.

[0099] In some embodiments, when the color-related parameters are RGB values, the ranges of RGB values ​​corresponding to the aforementioned white (colorless), blue, and red can be predetermined (e.g., ranges of 0 to 255). If the color-related parameters are within the predetermined range of the corresponding color, the color-related parameters represent the corresponding color. The specific RGB value setting can refer to the prior art and will not be described in detail here. For example, in the color-related parameters, when Red<200&&Blue>200, it means a change from red to blue, and when Blue<200&&Red>200, it means a change from blue to red.

[0100] In some embodiments, the step of determining whether the titration of the titration solution is abnormal is performed multiple times within a predetermined time, and multiple abnormal judgment results are obtained. When multiple abnormal judgment results are all abnormal, the titration of the titration solution is determined to be abnormal. In this way, the reliability of the detection result of the abnormal titration of the titration solution can be improved. For example, the predetermined time is set in direct proportion to the hardness of water. When determining whether the third titration solution is abnormal, when the color of the aqueous solution is determined to change from the ninth color to the tenth color multiple times within the predetermined time, when the multiple detection results are all not changed from the ninth color to the tenth color (in other words, the color of the aqueous solution continues to be the ninth color within the predetermined time), it is determined that the titration of the third titration solution is abnormal. When at least one detection result is that the color of the aqueous solution changes from the ninth color to the tenth color, it is determined that the titration of the third titration solution is normal. For example, when the third titration solution is EDTA, within the predetermined time, if the color of the aqueous solution is continuously red in multiple detection results, that is, it does not change from red to blue, it is determined that the EDTA titration is abnormal. If at least one detection result is that the color of the aqueous solution changes from red to blue, it is determined that the EDTA titration is normal.

[0101] The fault monitoring method of the titration detection device of the embodiment of the present application is described below with a specific example. Figure 2 FIG. 1 is another flow chart of the fault monitoring method in the embodiment of the present application. Figure 2 As shown, the method includes:

[0102] 201, execute the water inlet instruction for a specified time; the specified time is the time for a specified amount of water to flow into the titration detection device, which can be set according to actual conditions, for example, according to the amount of water to be added, the flow rate of water, etc.

[0103] 202, detecting parameters related to light intensity; a color sensor (RGB sensor) may be used to detect the light intensity of a light-transmitting section of the titration detection device for containing the aqueous solution.

[0104] 203, determine whether the change between the detected light intensity related parameter and the light intensity related parameter before the water inlet instruction is executed is greater than a preset change; the preset change may be a change in light intensity set according to a specified lighting condition. If the judgment result is yes, execute step 204; if the judgment result is no, execute step 214.

[0105] 204, execute the titration instruction of the ammonia buffer solution for the specified time; the specified time is the time for adding a specified amount of ammonia buffer solution of a specified concentration into the aqueous solution, and can be set according to actual conditions, for example, according to the amount of water in the titration detection device, the concentration of the ammonia buffer solution, the flow rate of the ammonia buffer solution, etc.

[0106] 205, executing a titration instruction of the chrome black T solution for a specified time; the specified time is the time for adding a specified amount of the chrome black T solution of a specified concentration into the aqueous solution, which can be set according to actual conditions, for example, according to the amount of water in the titration detection device, the concentration of the chrome black T solution, the flow rate of the chrome black T solution, etc.

[0107] 207, detecting color-related parameters; a color sensor may be used to detect the color of the light-transmitting section of the titration detection device for containing the aqueous solution.

[0108] 208, determining the conditions satisfied by the color-related parameters, when the detected color-related parameters indicate red, executing step 209; when the detected color-related parameters indicate colorless, executing step 215; when the color-related parameters detected multiple times within a predetermined time indicate blue, executing step 216;

[0109] Step 209, executing the titration instruction of EDTA solution;

[0110] Step 210, while executing the titration instruction of the EDTA solution, detecting color-related parameters;

[0111] Step 211, determining multiple times within a predetermined time whether the detected color-related parameter changes from red to blue; if yes, executing step 212, if not, executing step 209;

[0112] Step 212, stop executing the titration instruction of the EDTA solution;

[0113] Step 213, calculate the hardness of water; for example, calculate the hardness of water according to the amount of EDTA solution titrated until the execution of the titration instruction of EDTA solution is stopped. For details, please refer to the prior art and will not be repeated here.

[0114] Step 214, prompting that the entry process of the object to be detected is abnormal;

[0115] Step 215, prompting that chrome black T is short of liquid;

[0116] Step 216, prompting that the ammonia buffer is short of solution.

[0117] It is worth noting that the above Figure 2 The embodiments of the present application are only schematically described, but the present application is not limited thereto. For example, the execution order of the various operations can be appropriately adjusted, for example, 204 and 205 can be interchanged, and other operations can be added or some operations can be reduced. Those skilled in the art can make appropriate modifications based on the above content, and are not limited to the above appended Figure 2 Records of.

[0118] In an embodiment of the present application, it is possible to determine whether the titration detection device is abnormal during the titration detection (for example, detecting water hardness). For example, light intensity-related parameters and / or color-related parameters acquired by the sensor at different time points can be used not only to perform titration detection (for example, detecting water hardness) but also to determine whether the titration detection device is abnormal. On the basis of automatically monitoring the titration end point, the titration detection device can be self-checked, and faults of the titration detection device can be detected in time, thereby ensuring the reliability of the titration.

[0119] It can be seen from the above embodiments that whether the titration detection process is abnormal can be determined based on the optical parameters and / or electrical parameters of the object to be detected by the titration detection device, thereby enabling self-inspection of the titration detection device, timely detecting faults of the titration detection device, and ensuring the reliability of titration.

[0120] Embodiments of the second aspect

[0121] An embodiment of the present application provides a controller, which can execute the fault monitoring method of the titration detection device described in the embodiment of the first aspect, and the contents that are the same as the embodiment of the first aspect will not be repeated.

[0122] In some embodiments, during the titration detection process, the controller obtains optical parameters and / or electrical parameters of the object to be detected of the titration detection device; when the changes in the optical parameters and / or electrical parameters meet preset conditions, it is determined that the titration detection process is abnormal.

[0123] In some embodiments, the change of the optical parameter and / or the electrical parameter satisfies a preset condition including that the change of the optical parameter and / or the electrical parameter is not greater than a preset change.

[0124] In some embodiments, the optical parameters and / or electrical parameters include light intensity-related parameters characterizing light intensity and / or color-related parameters characterizing color. During the entry of the object to be detected in the titration detection process, when the change in the light intensity-related parameters is not greater than the preset change related to light intensity, or when the change in the color-related parameters is not greater than the preset change related to color, compared with the light intensity-related parameters and / or color-related parameters before entry, it is determined that the entry process of the object to be detected is abnormal.

[0125] In some embodiments, the optical parameters and / or electrical parameters include light intensity-related parameters characterizing light intensity and / or color-related parameters characterizing color. During the titration reaction process of the titration detection process, after the titration instruction of the titration liquid is executed, when the change in the light intensity-related parameters is not greater than a preset change related to the light intensity, and / or when the change in the color-related parameters is not greater than a preset change related to the color, a titration abnormality of the titration liquid used for the titration reaction process is determined.

[0126] In some embodiments, the titrant includes: a first titrant, a second titrant, and a third titrant; the controller determines that the first titrant is abnormally titrated and / or that the second titrant is abnormally titrated and / or that the third titrant is abnormally titrated.

[0127] The step of the controller determining that the titration of the first titrant is abnormal comprises:

[0128] After the controller first executes the titration instruction of the second titrant and the second titrant is titrated normally, the controller compares the light intensity related parameters and / or color related parameters after the titration instruction of the first titrant is executed with the light intensity related parameters and / or color related parameters before the titration instruction of the first titrant is executed, and determines that the titration of the first titrant is abnormal when the change of the light intensity related parameters is not greater than the first preset change related to the light intensity and / or when the change of the color related parameters is not greater than the first preset change related to the color;

[0129] or,

[0130] When the change in the light intensity-related parameter after the titration instruction of the first titration solution and the titration instruction of the second titration solution are executed and the second titration solution is titrated normally is not greater than the second preset change related to light intensity, compared with the light intensity-related parameter and / or color-related parameter after only the titration instruction of the second titration solution is executed and the second titration solution is titrated normally, and / or when the change in the color-related parameter after the titration instruction of the first titration solution and the titration instruction of the second titration solution are executed and the second titration solution is titrated normally is not greater than the second preset change related to color, the controller determines that the titration of the first titration solution is abnormal.

[0131] The step of the controller determining that the second titration solution is abnormal comprises:

[0132] When, compared with the light intensity related parameter and / or the color related parameter before the titration instruction of the second titration solution is executed, the change of the light intensity related parameter after the titration instruction of the second titration solution is executed is not greater than a third preset change related to light intensity, and / or, when the change of the color related parameter after the titration instruction of the second titration solution is executed is not greater than a third preset change related to color, the controller determines that the titration of the second titration solution is abnormal,

[0133] or,

[0134] Compared with the light intensity related parameters and / or color related parameters before the first titrant is normally titrated, when the change in the light intensity related parameters after the titration instruction of the first titrant and the titration instruction of the second titrant are executed and the first titrant is normally titrated is not greater than a fourth preset change related to light intensity, and / or when the change in the color related parameters after the titration instruction of the first titrant and the titration instruction of the second titrant are executed and the first titrant is normally titrated is not greater than a fourth preset change related to color, it is determined that the titration of the second titrant is abnormal.

[0135] The step of the controller determining that the titration of the third titrant is abnormal comprises:

[0136] Compared with the light intensity-related parameters and / or color-related parameters after only the titration instruction of the first titrant and the titration instruction of the second titrant are executed and the first titrant and the second titrant are titrated normally, when the change in the light intensity-related parameters after the titration instruction of the first titrant, the titration instruction of the second titrant, and the titration instruction of the third titrant are executed and the first titrant and the second titrant are titrated normally is not greater than the fifth preset change related to light intensity, and / or when the titration instruction of the first titrant, the titration instruction of the second titrant, and the titration instruction of the third titrant are executed and the change in the color-related parameters after the first titrant and the second titrant are titrated normally is not greater than the fifth preset change related to color, it is determined that the titration of the third titrant is abnormal.

[0137] In some embodiments, the first titrant includes an ammonia buffer solution, the second titrant includes an chrome black solution, and the third titrant includes an EDTA solution. The change in the color-related parameter is not greater than the first preset change related to the color, which means that the color represented by the color-related parameter has not changed from blue to red; the change in the color-related parameter is not greater than the second preset change related to the color, which means that the color represented by the color-related parameter has not changed from blue to red; the change in the color-related parameter is not greater than the third preset change related to the color, which means that the color represented by the color-related parameter has not changed from white to red or blue; the change in the color-related parameter is not greater than the fourth preset change related to the color, which means that the color represented by the color-related parameter has not changed from white to red; the change in the color-related parameter is not greater than the fifth preset change related to the color, which means that the color represented by the color-related parameter has not changed from red to blue.

[0138] In some embodiments, the controller executes the step of determining abnormality in titration of the titration solution multiple times within a predetermined time, and obtains multiple abnormality judgment results. When the multiple abnormality judgment results are all abnormal, it is determined that the titration of the titration solution is abnormal.

[0139] In some embodiments, the controller may include a processor (eg, a central processing unit (CPU)) and a memory; the memory is coupled to the central processing unit.

[0140] The processor is sometimes also referred to as a controller or an operating control, and may include a microprocessor or other processor device and / or a logic device. The memory may be, for example, one or more of a cache, a flash memory, a hard drive, a removable medium, a volatile memory, a non-volatile memory, or other suitable devices. Various information may be stored, and programs for executing related information may also be stored. The processor may execute the program stored in the memory to implement information storage or processing, and thereby implement the fault monitoring method of the titration detection device as described above.

[0141] It can be seen from the above embodiments that whether the titration detection process is abnormal can be determined based on the optical parameters and / or electrical parameters of the object to be detected by the titration detection device, thereby enabling self-inspection of the titration detection device, timely detecting faults of the titration detection device, and ensuring the reliability of titration.

[0142] Embodiments of the third aspect

[0143] The third aspect of the present application provides a titration detection device, Figure 3 It is a structural schematic diagram of the titration detection device of an embodiment of the present application.

[0144] like Figure 3 As shown, the titration detection device 300 includes: a controller 301 , a pipeline 302 , and a first pump 303 disposed in the pipeline 302 .

[0145] The controller 301 may be the controller described in the embodiment of the second aspect, and the contents identical to those in the embodiment of the second aspect are not repeated. The pipeline 302 may include a first inlet 3021 and a titration liquid inlet 3022, and the first pump 303 allows the object to be detected and the titration liquid entering from the first inlet 3021 and the titration liquid inlet 3022 to flow in the pipeline 302.

[0146] Through the above-mentioned embodiment, by setting the control as described in the embodiment of the second aspect in the titration detection device, it is possible to determine whether the titration detection process is abnormal based on the optical parameters and / or electrical parameters of the object to be detected of the titration detection device 300, thereby realizing the self-check of the titration detection device, timely detecting the fault of the titration detection device, and ensuring the reliability of the titration. In addition, the object to be detected entering from the first inlet 3021 and the titration liquid entering from the titration liquid inlet 3022 flow in the pipeline 302 through the first pump 303, so that the object to be detected and the titration liquid can be mixed in the pipeline 302, and there is no need to set a special reaction vessel for the object to be detected and the titration liquid to react. Therefore, the titration detection device 300 in the embodiment of the present application does not need to bear pressure, and the risk of leakage is small; the volume is small, the structure is simple, the mixing effect of the object to be detected and the titration liquid is good, and high-precision detection can be performed even if the content of the specified substance in the object to be detected is small.

[0147] In some embodiments, the titration detection device 300 can detect the content of various specified substances in various objects to be detected, and the objects to be detected can be in the state of solid, liquid, gas, etc. For example, the titration detection device 300 can detect the hardness of water, the content of heavy metals in liquid, etc.

[0148] In some embodiments, the first pump 303 can be various pumps that can make the object to be detected and the titration solution flow in the pipeline 302. In other embodiments, the first pump 303 can not only make the object to be detected and the titration solution flow in the pipeline 302, but also make the object to be detected enter the pipeline 302 from the first inlet 3021. For example, the first pump 303 can be a peristaltic pump. The peristaltic pump can make the object to be detected and the titration solution in the pipeline 302 flow by alternately squeezing and releasing the pipeline 302, so that the object to be detected and the titration solution in the pipeline 302 can be mixed more fully. In addition, the peristaltic pump can form a negative pressure in the pipeline 302, so that the object to be detected can enter the pipeline 302, and the object to be detected and the titration solution entering the pipeline 302 can be mixed.

[0149] In some embodiments, the pipeline 302 may be any pipeline that allows the object to be detected and the titration liquid to flow. For example, it may be a pipeline that can form a capillary phenomenon (the diameter of the pipeline is less than a threshold value). Thus, when the pipeline 302 contacts the object to be detected in a liquid state, the object to be detected can enter the pipeline 302 along the inner wall of the pipeline 302 under the condition of infiltration. Thus, the object to be detected can be easily allowed to enter the pipeline 302.

[0150] Figure 4 is another structural schematic diagram of the titration detection device 300 of the embodiment of the present application. In some embodiments, Figure 4 As shown, the pipeline 302 may further include a first outlet 308. By providing the first outlet 308 on the pipeline 302, the waste liquid generated during the detection process can be smoothly discharged from the pipeline 302. For example, before using the titration detection device 300 to perform a titration detection, the pipeline 302 may be flushed with an object to be detected, and the waste liquid may be discharged through the first outlet 308 to prevent the substances in the pipeline 302 from affecting the results of the titration detection.

[0151] In some embodiments, Figure 4 As shown, the position of the first outlet 308 can be higher than the first inlet 3021. Thus, the object to be detected can be made to enter the pipeline 302 by utilizing the capillary phenomenon. Alternatively, the first outlet 308 is not lower than the inlet of the first pump 303.

[0152] In some embodiments, Figure 4As shown, the flow direction of the object to be detected and the titration solution in the pipeline 302 can be as indicated by the arrow, that is, flow in a clockwise direction. However, the present application is not limited thereto, and the flow direction of the object to be detected and the titration solution in the pipeline 302 can also be counterclockwise.

[0153] In some embodiments, Figure 4 As shown, an object to be detected inlet pipe 306 may be provided upstream of the first inlet port 3021, one end of the object to be detected inlet pipe 306 is connected to the pipeline 302, and the other end is connected to the device containing the object to be detected, and a flow control device (not shown) may be provided on the object to be detected inlet pipe 306. For example, the flow control device may be a valve capable of controlling the opening or closing of the pipeline, such as a solenoid valve, or a controller with a flow calculation function. Thus, the flow control device can be used to control the movement of the object to be detected entering the pipeline 302 or calculate the amount of the object to be detected entering the pipeline 302, so as to achieve more accurate control.

[0154] Alternatively, a second pump 307 may also be provided on the object to be detected inlet pipe 306. The second pump 307 may be any pump capable of causing the object to be detected to flow into the pipeline 302. For example, the second pump 307 may be a peristaltic pump. Thus, a pressure difference may be formed at the first inlet 3021 by the second pump 307, so that the object to be detected may smoothly enter the pipeline 302.

[0155] Alternatively, the object-to-be-detected inlet pipe 306 may also be provided with a flow control device and a second pump 307 at the same time.

[0156] Alternatively, a second pump 307 may be provided on the pipeline 302 , but the embodiment of the present application is not limited thereto.

[0157] In some embodiments, the pipeline 302 may be a circulation pipeline, and the object to be detected and the titration solution are mixed and flowed in the circulation pipeline. By setting the pipeline 302 as a circulation pipeline, the object to be detected and the titration solution can be fully mixed and flowed in the circulation pipeline 302 under the control of the first pump 303, but the present application is not limited thereto, and the pipeline 302 may not be in the form of a circulation pipeline if the mixing efficiency is sufficiently high.

[0158] In some embodiments, Figure 4As shown, a titration liquid inlet pipe 3025 may be provided downstream of the first inlet port 3021. One end of the titration liquid inlet pipe 3025 is connected to the pipeline 302, and the other end is connected to the device containing the titration liquid. A flow control device (not shown) may be provided on the titration liquid inlet pipe 3025. For example, the flow control device may be a valve capable of controlling the opening or closing of the pipeline, such as a solenoid valve, or a controller with a flow calculation function. Thus, the flow control device may be used to control the action of the titration liquid entering the pipeline 302 or to calculate the amount of the object to be detected entering the pipeline 302, so as to control the flow more accurately.

[0159] Alternatively, a third pump 3024 may also be provided on the titration liquid inlet pipe 3025, and the third pump 3024 may be any pump (such as a peristaltic pump) capable of causing the titration liquid to flow into the pipeline 302, and the number of the third pumps 3024 matches the type of the titration liquid. For example, when there are three types of titration liquids, the number of the third pumps 3024 may be three, each used to cause the three types of titration liquids to flow into the pipeline 302.

[0160] Alternatively, the titration liquid inlet pipe 3025 may also be provided with a flow control device and a third pump 3024 at the same time.

[0161] Alternatively, a third pump 3024 may be provided on the pipeline 302 , but the embodiment of the present application is not limited thereto.

[0162] In some embodiments, Figure 4 As shown, the pipeline 302 may further include a mixer 304, and the mixer 304 may be provided with a flow disturbance structure. By providing the mixer 304, the flow mode of the object to be detected and the titration solution flowing in the pipeline 302 can be changed, so that the object to be detected and the titration solution can be mixed more fully.

[0163] Figure 5 is a schematic diagram of the structure of the mixer 304 in the embodiment of the present application, Figure 6 It is along Figure 5 A cross-sectional view of the mixer 304 along the section line AA', Figure 7 is another cross-sectional view of the mixer 304 .

[0164] In some embodiments, Figure 6 to Figure 7 As shown, the flow disturbance structure of the mixer 304 may include a curved flow channel 3041. Thus, the flow mode of the object to be detected and the titration solution can be changed in a simple manner, so that the object to be detected and the titration solution are mixed more fully. However, the present application is not limited thereto, and the flow disturbance structure may also be formed in other ways, for example, a structure for changing the cross-sectional area of ​​the flow channel is provided in the mixer 304, or a structure for changing the direction of the flow channel is provided, etc.

[0165] In some embodiments, Figure 5 As shown, the titration liquid inlet 3022 can be arranged in the mixer 304, and the mixer 304 has a second inlet 3042 and a first outlet 3043, and the second inlet 3042 and the first outlet 3043 are respectively connected to the pipeline 302. Thus, the titration liquid can enter the mixer 304 through the titration liquid inlet 3022, that is, when the titration liquid enters the pipeline 302, it first passes through the mixer 304, and after being mixed with the object to be detected that enters the mixer 304 from the pipeline 302 through the second inlet 3042 in the mixer 304, it enters the pipeline 302 through the first outlet 3043. Thus, the object to be detected and the titration liquid can be further fully mixed.

[0166] In some embodiments, the number of the titration liquid inlets 3022 provided in the mixer 304 matches the type of the titration liquid. Figure 5 As shown, when there are three types of titration solutions, the number of titration solution inlets 3022 of the mixer 304 can be 3. Thus, each titration solution can first enter the mixer 304 through the titration solution inlet 3022 to mix with the object to be detected, and the object to be detected and the titration solution can be fully mixed.

[0167] However, the present application is not limited thereto, and the titration liquid inlet 3022 may also be Figure 4 It is shown arranged on pipeline 302.

[0168] In some embodiments, Figure 4 As shown, the mixer 304 has a second inlet 3042 and a first outlet 3043. Along the flow direction of the fluid in the pipeline 302, the second inlet 3042 is located upstream of the titration liquid inlet 3022. Thus, the object to be detected and the titration liquid in the pipeline 302 can flow smoothly into the mixer 304.

[0169] In some embodiments, the rate of change of the cross-sectional area of ​​the end of the mixer near the second inlet is greater than the rate of change of the cross-sectional area of ​​the end of the mixer near the first outlet, such as Figure 5 As shown, along the flow direction, the cross-sectional area of ​​the end of the mixer 304 close to the first outlet 3043 tends to gradually decrease. Alternatively, along the flow direction, the cross-sectional area of ​​the end of the mixer 304 close to the second inlet 3042 tends to increase, and the speed of increase is faster than the speed of decrease of the cross-sectional area of ​​the end of the mixer 304 close to the first outlet 3043. In this way, the test object and the titration solution can be further fully mixed.

[0170] In some embodiments, Figure 4 As shown, the pipeline 302 may include a light-transmitting section 3023 (such as Figure 4The light-transmitting section 3023 may include a light-transmitting portion integrally formed with the pipeline 302, or the light-transmitting section 3023 may include a light-transmitting portion sealed to the pipeline 302 at both ends, or the light-transmitting section 3023 includes both a light-transmitting portion integrally formed with the pipeline 302 and a light-transmitting portion sealed to the pipeline 302 at both ends. By providing the light-transmitting section 3023 on the pipeline 302, the optical parameters and / or electrical parameters of the object to be detected and the titration solution in the pipeline 302 can be obtained, so that the optical parameters and / or electrical parameters can be used for related processing, for example, the titration detection process of the titration detection device 300 can be detected to be abnormal or normal, and the specific details can be referred to the embodiment of the first aspect, or the titration endpoint of the titration detection process can be determined, and then the content of the specified substance in the object to be detected can be calculated according to the amount of titration solution added at the titration endpoint time point (for example, it can be used for water hardness detection), etc. The implementation method of how to calculate the content of the specified substance in the object to be detected can refer to the prior art, for example Figure 2 Operation 213 is not described here any more.

[0171] In some embodiments, Figure 4 As shown, the titration detection device 300 may further include a sensor 305. The sensor 305 is disposed on the inner surface of the light-transmitting section 3023 or the shell of the titration detection device 300, and is used to obtain the optical parameters and / or electrical parameters of the liquid flowing through the light-transmitting section 3023. The optical parameters and / or electrical parameters may be light intensity-related parameters characterizing light intensity and / or color-related parameters characterizing color, and the sensor may be an optical sensor or a color sensor, etc., which obtains the optical parameters and / or electrical parameters of the liquid flowing through the light-transmitting section 3023 in a non-contact manner, but the embodiment of the present application is not limited thereto. For example, the titration detection device 300 may further include a terminal device with a shooting function, which shoots an image of the light-transmitting section 3023, and obtains the optical parameters and / or electrical parameters of the liquid flowing through the light-transmitting section 3023 through the image. The specific acquisition method may refer to the prior art, which will not be described one by one here.

[0172] In some embodiments, Figure 4 As shown, the controller 301 can communicate with the sensor 305 (via wired or wireless means) to obtain the optical parameters and / or electrical parameters of the object to be detected by the titration detection device (receive the optical parameters and / or electrical parameters sent by the sensor), and detect whether the titration detection process of the titration detection device 300 is abnormal or normal based on the optical parameters and / or electrical parameters. For details, please refer to the embodiment of the first aspect. Alternatively, the titration endpoint of the titration detection process can be determined, and then the content of the specified substance in the object to be detected can be calculated based on the amount of titration solution added at the titration endpoint time point (for example, it can be used for water hardness detection), etc. For the implementation method of how to calculate the content of the specified substance in the object to be detected, please refer to the prior art, such as Figure 2 Operation 213 is not described here any more.

[0173] In some embodiments, the apparatus may optionally further include a display input device 309, which may be used to display the titration progress (0-100%) of each titration solution, or display the titration amount of each titration solution, or display whether an abnormality is detected, or display what kind of abnormality occurs, so that maintenance personnel can check it in time.

[0174] In some embodiments, in the titration detection device described in this embodiment, the abnormality in the entry process of the object to be detected in the aforementioned titration detection process may include an abnormality in the first pump and / or an abnormality in the flow control device and / or an abnormality in the second pump (not working), which results in the object to be detected not entering the pipeline normally, and the abnormality in the titration of the titrant may include a lack of titrant and / or an abnormality in the flow control device and / or an abnormality in the third pump, which results in the titrant not being titrated normally (i.e., not entering the pipeline).

[0175] Through the above-mentioned embodiment, by setting the control as described in the embodiment of the second aspect in the titration detection device, it is possible to determine whether the titration detection process is abnormal based on the optical parameters and / or electrical parameters of the object to be detected of the titration detection device 300, thereby realizing the self-check of the titration detection device, timely detecting the fault of the titration detection device, and ensuring the reliability of the titration. In addition, the object to be detected entering from the first inlet 3021 and the titration liquid entering from the titration liquid inlet 3022 flow in the pipeline 302 through the first pump 303, so that the object to be detected and the titration liquid can be mixed in the pipeline 302, and there is no need to set a special reaction vessel for the object to be detected and the titration liquid to react. Therefore, the titration detection device 300 in the embodiment of the present application does not need to bear pressure, and the risk of leakage is small; the volume is small, the structure is simple, the mixing effect of the object to be detected and the titration liquid is good, and high-precision detection can be performed even if the content of the specified substance in the object to be detected is small.

[0176] Embodiments of the fourth aspect

[0177] An embodiment of the fourth aspect of the present application provides a water supply system. Figure 8 Schematic diagram of a water supply system according to an embodiment of the present application. Figure 8 As shown, the water supply system 800 includes the titration detection device 300 described in the embodiment of the third aspect.

[0178] In some embodiments, the water supply system 800 may include a water purification device 801 and / or a hot water supply device 802 .

[0179] In some embodiments, the first inlet of the titration detection device 300 is connected to the water outlet or water inlet of the water supply system 800 (eg, the water purification device 801 or the hot water supply device 802). Figure 8 As shown, the first inlet of the titration detection device 300 is connected to the water outlet of the water supply system 800. Thus, the liquid (water) flowing into or out of the water supply system 800 can be used as the object to be detected, and the content of the specified substance in the object to be detected (such as hardness detection) can be detected.

[0180] Fig. 9 Schematic diagram of a water supply system according to an embodiment of the present application. Fig. 9 As shown, the water supply system 900 includes the titration detection device 300 described in the embodiment of the third aspect.

[0181] In some embodiments, the water supply system 900 may include a water purification device 901 and / or a hot water supply device 902 .

[0182] In some embodiments, the first inlet of the titration detection device 300 is connected to the water outlet or water inlet of the water supply system 900 (e.g., the water purification device 901 or the hot water supply device 902). Thus, the liquid (water) flowing into or out of the water supply system 900 can be used as the object to be detected, and the content of the specified substance in the object to be detected can be detected (e.g., hardness detection).

[0183] In some embodiments, Fig. 9 As shown, the water supply system further includes a water softening device 903, and the titration detection device 300 is disposed between the water softening device 903 and the water purification device 901, or the titration detection device 300 is disposed between the water softening device 903 and the hot water supply device 902. Thus, the liquid (water) flowing out of the water softening device 903 can be used as the object to be detected, and the content of the specified substance in the object to be detected (such as hardness detection) can be detected, so that the water softening effect of the water softening device 903 can be detected.

[0184] An embodiment of the present application also provides a computer program, wherein when the program is executed in a controller, the program causes the controller to execute the fault monitoring method for the titration detection device described in the embodiment of the first aspect.

[0185] An embodiment of the present application also provides a storage medium storing a computer program, wherein the computer program enables a controller to execute the fault monitoring method for a titration detection device described in the embodiment of the first aspect.

[0186] The controller described in the embodiments of the present application may be directly embodied as hardware, a software module executed by a processor, or a combination of the two. For example, one or more of the functional block diagrams shown in the figure and / or one or more combinations of the functional block diagrams may correspond to various software modules of the computer program flow or to various hardware modules. These software modules may correspond to Figure 1 to Figure 2These hardware modules can be implemented by solidifying these software modules using, for example, a field programmable gate array (FPGA).

[0187] The software module may be located in RAM memory, flash memory, ROM memory, EPROM memory, EEPROM memory, registers, hard disk, removable disk, CD-ROM or any other form of storage medium known in the art. A storage medium may be coupled to a processor so that the processor can read information from the storage medium and write information to the storage medium; or the storage medium may be an integral part of the processor. The processor and the storage medium may be located in an ASIC. The software module may be stored in a memory of an information processing system or in a memory card that can be inserted into the information processing system.

[0188] For one or more of the functional block diagrams described in the figure and / or one or more combinations of the functional block diagrams, it can be implemented as a general-purpose processor, a digital signal processor (DSP), an application-specific integrated circuit (ASIC), a field programmable gate array (FPGA) or other programmable logic device, a discrete gate or transistor logic device, a discrete hardware component, or any appropriate combination thereof for performing the functions described in the present application. For one or more of the functional block diagrams described in the figure and / or one or more combinations of the functional block diagrams, it can also be implemented as a combination of computing devices, such as a combination of a DSP and a microprocessor, multiple microprocessors, one or more microprocessors in communication with a DSP, or any other such configuration.

[0189] The present application is described above in conjunction with specific implementation methods, but it should be clear to those skilled in the art that these descriptions are exemplary and are not intended to limit the scope of protection of the present application. Those skilled in the art can make various modifications and variations to the present application based on the spirit and principles of the present application, and these modifications and variations are also within the scope of the present application.

Claims

1. A fault monitoring method for a titration detection device, characterized in that: The titration liquid used for titration detection includes: a first titration liquid, a second titration liquid, and a third titration liquid, wherein the first titration liquid is an environmental regulator for regulating environmental parameters during the titration reaction process, the second titration liquid is an indicator for indicating the progress of the titration reaction process, and the third titration liquid is a reactant for reacting with a specified substance in the object to be detected, and the method includes: During the titration detection process, the optical parameters and / or electrical parameters of the object to be detected by the titration detection device are obtained; the titration detection process is used to detect the hardness of water; When the change of the optical parameter and / or the electrical parameter meets the preset condition, determining that the titration detection process is abnormal, wherein determining that the titration detection process is abnormal includes: determining that the titration of the first titration solution is abnormal and / or determining that the titration of the third titration solution is abnormal; Wherein, the step of determining that the titration of the first titration solution is abnormal comprises: After the titration instruction of the second titrant is executed first and the second titrant is titrated normally, comparing the light intensity related parameters and / or color related parameters after the titration instruction of the first titrant is executed with the light intensity related parameters and / or color related parameters before the titration instruction of the first titrant is executed, and determining that the titration of the first titrant is abnormal when the change of the light intensity related parameters is not greater than a first preset change related to light intensity and / or when the change of the color related parameters is not greater than a first preset change related to color; or, When the change in the light intensity related parameter after the titration instruction of the first titration solution and the titration instruction of the second titration solution are executed and the second titration solution is normally titrated is not greater than a second preset change related to light intensity, and / or when the change in the color related parameter after the titration instruction of the first titration solution and the titration instruction of the second titration solution are executed and the second titration solution is normally titrated is not greater than a second preset change related to color, compared with the light intensity related parameter and / or the color related parameter after the titration instruction of the first titration solution and the titration instruction of the second titration solution are executed and the second titration solution is normally titrated, it is determined that the titration of the first titration solution is abnormal; The step of determining that the third titration solution is abnormal in titration comprises: Compared with the light intensity-related parameters and / or color-related parameters after only the titration instruction of the first titration solution and the titration instruction of the second titration solution are executed and the first titration solution and the second titration solution are titrated normally, when the change in the light intensity-related parameters after the titration instruction of the first titration solution, the titration instruction of the second titration solution and the titration instruction of the third titration solution are executed and the first titration solution and the second titration solution are titrated normally is not greater than the fifth preset change related to light intensity, and / or when the change in the color-related parameters after the titration instruction of the first titration solution, the titration instruction of the second titration solution and the titration instruction of the third titration solution are executed and the first titration solution and the second titration solution are titrated normally is not greater than the fifth preset change related to color, it is determined that the titration of the third titration solution is abnormal.

2. The method according to claim 1, characterized in that The optical parameters and / or electrical parameters include light intensity-related parameters characterizing light intensity and / or color-related parameters characterizing color, and determining that the titration detection process is abnormal also includes: determining that the process of entry of the object to be detected is abnormal; wherein, determining that the process of entry of the object to be detected is abnormal includes: during the process of entry of the object to be detected in the titration detection process, when the change in the light intensity-related parameters is not greater than the preset change related to light intensity, or when the change in the color-related parameters is not greater than the preset change related to color, compared with the light intensity-related parameters and / or color-related parameters before entry, it is determined that the process of entry of the object to be detected is abnormal.

3. The method according to claim 1, characterized in that Determining that the titration detection process is abnormal further includes: determining that the titration of the second titrant is abnormal; The step of determining that the second titration solution is abnormal comprises: When, compared with the light intensity related parameter and / or the color related parameter before the titration instruction of the second titration solution is executed, the change of the light intensity related parameter after the titration instruction of the second titration solution is executed is not greater than a third preset change related to light intensity, and / or, when the change of the color related parameter after the titration instruction of the second titration solution is executed is not greater than a third preset change related to color, it is determined that the titration of the second titration solution is abnormal, or, Compared with the light intensity related parameters and / or color related parameters before the first titrant is normally titrated, when the change in the light intensity related parameters after the titration instruction of the first titrant and the titration instruction of the second titrant are executed and the first titrant is normally titrated is not greater than a fourth preset change related to light intensity, and / or when the change in the color related parameters after the titration instruction of the first titrant and the titration instruction of the second titrant are executed and the first titrant is normally titrated is not greater than a fourth preset change related to color, it is determined that the titration of the second titrant is abnormal.

4. The method according to claim 3, characterized in that The first titrant includes an ammonia buffer solution, the second titrant includes an chrome black T solution, and the third titrant includes an EDTA solution. The change of the light intensity related parameter being no greater than a first preset change related to the light intensity means that the change of the light intensity value represented by the light intensity related parameter does not exceed the preset value; The change of the light intensity related parameter being no greater than a second preset change related to the light intensity means that the change of the light intensity value represented by the light intensity related parameter does not exceed the preset value; The change of the color-related parameter being no greater than a third preset change related to color means that the color represented by the color-related parameter does not change from white to red or blue; The change of the color-related parameter being no greater than a fourth preset change related to color means that the color represented by the color-related parameter does not change from white to red; The change of the color-related parameter being no greater than a fifth preset change related to color means that the color represented by the color-related parameter does not change from red to blue.

5. The method according to claim 1, characterized in that The method further includes: executing the step of determining the titration abnormality of the titration solution multiple times within a predetermined time, and obtaining multiple abnormality judgment results, and determining that the titration of the titration solution is abnormal when the multiple abnormality judgment results are all abnormal.

6. A controller, characterized in that: The controller is configured to execute the fault monitoring method for a titration detection device according to any one of claims 1 to 5.

7. A titration detection device, characterized in that: The device comprises: The controller according to claim 6, A pipeline and a first pump disposed in the pipeline; The pipeline includes a first inlet, a titration liquid inlet; The first pump allows the object to be detected and the titrant entering from the first inlet and the titrant inlet to flow in the pipeline.

8. The device according to claim 7, characterized in that The pipeline further comprises a mixer, and the mixer is provided with a flow-disturbing structure.

9. The device according to claim 8, characterized in that The flow-disturbing structure includes a curved flow channel.

10. The device according to claim 8, characterized in that The titration liquid inlet is arranged on the mixer, and the mixer has a second inlet and a first outlet, and the second inlet and the first outlet are respectively connected to the pipeline.

11. The device according to claim 8, characterized in that The mixer has a second inlet and a first outlet. Along the flow direction of the fluid in the pipeline, the second inlet is located upstream of the titrant inlet.

12. The device according to claim 10, characterized in that The number of the titration liquid inlets provided in the mixer matches the type of the titration liquid.

13. The device according to claim 10 or 11, characterized in that Along the flow direction of the fluid in the pipeline, the cross-sectional area of ​​the mixer at one end close to the first outlet tends to gradually decrease; or, along the flow direction of the fluid in the pipeline, the cross-sectional area of ​​the mixer at one end close to the second inlet tends to increase.

14. The device according to claim 13, characterized in that A rate of change of a cross-sectional area of ​​an end of the mixer close to the second inlet is greater than a rate of change of a cross-sectional area of ​​an end of the mixer close to the first outlet.

15. The device according to any one of claims 7 to 12, characterized in that The pipeline comprises a light-transmitting section, and the light-transmitting section comprises a light-transmitting portion integrally formed with the pipeline and / or a light-transmitting portion with both ends sealedly connected to the pipeline.

16. The device according to claim 15, characterized in that The device further comprises: a sensor, which is arranged on the light-transmitting section or the inner surface of the shell of the titration detection device and is used to obtain color-related parameters of the liquid flowing through the light-transmitting section.

17. The device according to claim 16, characterized in that The controller communicates with the sensor to obtain the color-related parameters and determine the titration endpoint according to the color-related parameters.

18. The device according to any one of claims 7 to 12, characterized in that An inlet pipe for an object to be measured is arranged upstream of the first inlet port, and a flow control device and / or a second pump is arranged on the inlet pipe for an object to be measured; Alternatively, a second pump is arranged on the pipeline.

19. The device according to any one of claims 7 to 12, characterized in that The pipeline further includes a first discharge port, and the position of the first discharge port is higher than the first inlet, or the first discharge port is not lower than the inlet of the first pump.

20. The device according to any one of claims 7 to 12, characterized in that The first pump is a peristaltic pump.

21. The device according to any one of claims 7 to 12, characterized in that The pipeline is a circulation pipeline, and the object to be detected and the titration solution are mixed and flowed in the circulation pipeline.

22. A water supply system, characterized in that: The water supply system comprises the titration detection device according to any one of claims 7 to 21.

23. The water supply system according to claim 22, characterized in that The water supply system includes a water purification device and / or a hot water supply device.

24. The system according to claim 23, characterized in that The first inlet of the titration detection device is connected to the water outlet or the water inlet of the water supply system.

25. The system according to claim 23, characterized in that The water supply system further comprises a water softening device, and the titration detection device is arranged between the water softening device and the water purification device, or the titration detection device is arranged between the water softening device and the hot water supply device.

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