Reagent residual amount detection circuit for automatic dyeing equipment

Abstract

The utility model provides a reagent residual amount detection circuit for automatic dyeing equipment, which comprises a power supply, a voltage regulation circuit and a reagent liquid level detection circuit which are in power supply connection, and the voltage regulation circuit is in power supply connection with a main control circuit of the automatic dyeing equipment. The output end of the automatic dyeing equipment main control circuit is in control connection with the input end of the reagent liquid level detection circuit, the output end of the reagent liquid level detection circuit is in feedback connection with the input end of the automatic dyeing equipment main control circuit, and the automatic dyeing equipment main control circuit is further in communication connection with the touch display screen. A plurality of staining reagent liquid level detection sensor interfaces are arranged in the reagent liquid level detection circuit, and at least one staining reagent liquid level detection sensor interface is arranged in each staining reagent temporary storage tank. The dyeing reagent temporary storage device has the beneficial effects that the residual amount of the dyeing reagent in the dyeing reagent temporary storage assembly can be automatically obtained, so that the dyeing reagent can be automatically added and supplemented into the dyeing reagent temporary storage assembly.

Description

Technical Field

[0001] This utility model relates to the field of circuit technology, specifically to a reagent balance detection circuit for an automatic staining equipment. Background Technology

[0002] In existing biological sample analysis techniques, commonly used analytical methods include microscopy, microarray analysis (e.g., protein and nucleic acid microarray analysis), and mass spectrometry. Preparing samples for these and other types of analysis typically involves contacting the biological sample with a series of processing liquids. Some of these processing liquids (e.g., staining reagents and counterstaining reagents) can add color and, conversely, alter the visual properties of invisible or difficult-to-see sample components (e.g., at least some types of cells and intracellular structures). Other processing liquids (e.g., deparaffin liquids) can be used to achieve other processing purposes. If multiple processing liquids are used to treat the sample, the application and subsequent removal of each liquid can be crucial for producing a sample suitable for analysis. In some cases, treating samples with multiple processing liquids involves manually applying the liquids to the microscope slides holding the samples. However, this manual sample preparation method tends to be labor-intensive and inaccurate, leading to the development of biological tissue section staining equipment.

[0003] Automated staining technology for biological tissue samples is a crucial and indispensable step in the entire automated staining, drying, and mounting process for biological tissue samples. To ensure that the processed biological tissue samples have an easily observable appearance and maintain consistency and efficiency in the processing, the staining step is an essential aspect that must be strictly controlled during biological tissue sample processing. The purpose of staining is to make different structures within the cellular tissue appear in different colors for easier observation. The classic hematoxylin and eosin staining method is the routine staining method for histological and pathological specimens, abbreviated as HE staining. After staining, the cell nuclei are stained purple-blue by hematoxylin, while most cytoplasm and non-cellular components are stained pink by eosin.

[0004] Existing biological tissue sample staining equipment can replace manual staining. These machines automatically process samples by immersing a rack holding a batch of microscope slides in an open bath containing processing liquid. However, in existing biological tissue sample staining equipment, the staining reagents are consumed during the immersion staining operation. Therefore, various staining reagents need to be added frequently to ensure the normal operation of the staining process. However, existing staining equipment generally requires manual addition of staining reagents after visually checking the reagent storage components or the remaining reagent in the staining bath. This operation is cumbersome, time-consuming, labor-intensive, error-prone, and prone to forgetting to add reagents. As a result, the production efficiency and product quality of biological tissue sample microscope slides are not stable enough, making it difficult to meet the needs of users. Utility Model Content

[0005] To address the problems in existing technologies, this utility model provides a reagent level detection circuit for an automated staining device. This circuit comprises a power supply, a voltage adjustment circuit, a main control circuit, a reagent level detection circuit, and a touch screen. The main control circuit controls the reagent level detection circuit to detect the reagent level in the reagent storage tank and relays this information to the touch screen. This allows for automatic acquisition of the reagent level in the storage tank, ensuring sufficient reagent for staining operations. The system eliminates the need for manual operation, saving time and effort, reducing errors, and preventing the possibility of forgetting to add reagent. This significantly improves the production efficiency and quality of microscope slides for biological tissue sample sections, enhancing the user experience and solving the problems of time-consuming, labor-intensive, and error-prone manual addition of reagents in existing biological tissue sample section staining equipment.

[0006] This utility model provides a reagent level detection circuit for an automatic staining equipment, comprising a power supply, a voltage adjustment circuit, an automatic staining equipment main control circuit, a reagent level detection circuit, and a touch screen display. The output terminal of the power supply is connected to the voltage adjustment circuit and the reagent level detection circuit. The output terminal of the voltage adjustment circuit is connected to the automatic staining equipment main control circuit. The output terminal of the automatic staining equipment main control circuit is connected to the input terminal of the reagent level detection circuit. The output terminal of the reagent level detection circuit is connected to the input terminal of the automatic staining equipment main control circuit. The automatic staining equipment main control circuit is also communicatively connected to the touch screen display, which can input information via touch. The reagent level detection circuit has multiple staining reagent level detection sensor interfaces. The staining reagent temporary storage component of the automatic staining equipment has multiple staining reagent temporary storage tanks, each of which has at least one staining reagent level detection sensor interface. The automatic staining equipment main control circuit can control the reagent level detection circuit to detect the staining reagent level in the staining reagent temporary storage tanks and feed it back to the automatic staining equipment main control circuit for display on the touch screen display.

[0007] This utility model is further improved in that the main control circuit of the automatic dyeing equipment is provided with a main control chip U5 and a fuse resistor FB13. The main control chip U5 has 140 pins. Pin 32 of the main control chip U5 is connected to pin 33 of the main control chip U5 and one end of the fuse resistor FB13. The other end of the fuse resistor FB13 is connected to the output terminal of the voltage adjustment circuit. Pins 88, 89, 82, 85, 86, 79, 80, and 81 of the main control chip U5 are connected to the reagent level detection circuit. Pins 96, 97, and 113 of the main control chip U5 are connected to the touch screen display.

[0008] This utility model is further improved by including a voltage regulator chip U4, a diode D5, a resistor R16, a capacitor CT3, and a capacitor C28 in the voltage adjustment circuit. The voltage regulator chip U4 has four pins. The third pin of the voltage regulator chip U4 is connected to one end of the capacitor CT3, one end of the capacitor C28, and the output terminal of the power supply. The second pin of the voltage regulator chip U4 is connected to the fourth pin of the voltage regulator chip U4, one end of the resistor R16, and the other end of the fuse resistor FB13. The other end of the resistor R16 is connected to the positive terminal of the diode D5. The first pin of the voltage regulator chip U4, the other end of the capacitor CT3, the other end of the capacitor C28, and the negative terminal of the diode D5 are grounded.

[0009] In a further improvement to this invention, the voltage adjustment circuit is further provided with capacitors CT4, C29, C254, and C255. The second pin of the voltage regulator chip U4 is connected to one end of capacitor CT4, one end of capacitor C29, one end of capacitor C254, and one end of capacitor C255. The other ends of capacitors CT4, C29, C254, and C255 are grounded.

[0010] This utility model is further improved by including a staining reagent level detection sensor interface J1, a diode D1, a staining reagent level detection sensor interface J2, a staining reagent level detection sensor interface J3, a diode D3, a staining reagent level detection sensor interface J4, and a diode D4 within the reagent level detection sensor circuit. The first pin of the staining reagent level detection sensor interface J1 is connected to the negative terminal of the diode D1 and the 88th pin of the main control chip U5. The positive terminal of the diode D1 is connected to the output terminal of the power supply. The staining reagent level detection sensor interface J2... Pin 1 is connected to the negative terminal of diode D2 and pin 89 of the main control chip U5. The positive terminal of diode D2 is connected to the output terminal of the power supply. Pin 1 of the staining reagent level detection sensor interface J3 is connected to the negative terminal of diode D3 and pin 82 of the main control chip U5. The positive terminal of diode D3 is connected to the output terminal of the power supply. Pin 1 of the staining reagent level detection sensor interface J4 is connected to the negative terminal of diode D4 and pin 85 of the main control chip U5. The positive terminal of diode D4 is connected to the output terminal of the power supply.

[0011] This utility model is further improved by including a staining reagent level detection sensor interface J5, a diode D5, a staining reagent level detection sensor interface J6, a diode D6, a staining reagent level detection sensor interface J7, a diode D7, a staining reagent level detection sensor interface J8, and a diode D8 within the reagent level detection sensor circuit. The first pin of the staining reagent level detection sensor interface J5 is connected to the negative terminal of the diode D5 and the 86th pin of the main control chip U5. The positive terminal of the diode D5 is connected to the output terminal of the power supply. The staining reagent level detection sensor interface J6... Pin 1 of the dyeing reagent level sensor interface J7 is connected to the negative terminal of diode D6 and pin 79 of the main control chip U5. The positive terminal of diode D6 is connected to the output terminal of the power supply. Pin 1 of the dyeing reagent level sensor interface J8 is connected to the negative terminal of diode D7 and pin 80 of the main control chip U5. The positive terminal of diode D7 is connected to the output terminal of the power supply. Pin 1 of the dyeing reagent level sensor interface J8 is connected to the negative terminal of diode D8 and pin 81 of the main control chip U5. The positive terminal of diode D8 is connected to the output terminal of the power supply.

[0012] This utility model is further improved in that the main control chip U5 is model STM32F407ZGT6, the voltage regulator chip U4 is model LM1085IS-3.3 / NOPB, and the dyeing reagent level detection sensor interfaces J4, J5, J6, J1, J2, J3, J7, and J8 are all model KF2EDGV-2.54-3P-Z.

[0013] Compared with the prior art, the beneficial effects of this utility model are as follows: It provides a reagent balance detection circuit for an automatic staining equipment. By setting up a power supply, voltage adjustment circuit, main control circuit of the automatic staining equipment, reagent level detection circuit and touch screen in the reagent balance detection circuit, the main control circuit of the automatic staining equipment can control the reagent level detection circuit to detect the staining reagent level in the staining reagent storage tank and feed it back to the main control circuit of the automatic staining equipment, which is then transmitted to the touch screen for display. It can automatically obtain the remaining staining reagent in the staining reagent storage component and automatically add supplementary staining reagent to the staining reagent storage component. It ensures that there is staining reagent in the staining reagent storage component, which can be added to the staining tank for staining operations. No manual operation is required, which saves time and effort and is less prone to errors. It also eliminates the possibility of forgetting to add staining reagent manually. It greatly improves the production efficiency and product quality of biological tissue sample section microscope slides, improves the user experience, and solves the problem that manual addition of supplementary staining reagent is time-consuming, labor-intensive and prone to errors when performing staining operations in existing biological tissue sample section staining equipment. Attached Figure Description

[0014] To more clearly illustrate the solutions in this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of this utility model. For those skilled in the art, other drawings can be obtained from these drawings without creative effort.

[0015] Figure 1 This is a schematic diagram of a reagent balance detection circuit for an automatic staining equipment according to the present invention.

[0016] Figure 2 This is a circuit diagram of the main control circuit of the automatic dyeing equipment of this utility model;

[0017] Figure 3 This is a circuit diagram of the voltage adjustment circuit of this utility model;

[0018] Figure 4 This is a circuit diagram of the reagent level detection circuit of this utility model. Detailed Implementation

[0019] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention pertains; the terminology used herein in the specification is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention; the terms "comprising" and "having," and any variations thereof, in the specification, claims, and accompanying drawings of this invention are intended to cover non-exclusive inclusion. The terms "first," "second," etc., in the specification, claims, or accompanying drawings of this invention are used to distinguish different objects, not to describe a particular order.

[0020] In this document, the term "embodiment" means that a particular feature, structure, or characteristic described in connection with an embodiment may be included in at least one embodiment of the present invention. The appearance of this phrase in various places throughout the specification does not necessarily refer to the same embodiment, nor is it a separate or alternative embodiment mutually exclusive with other embodiments. It will be explicitly and implicitly understood by those skilled in the art that the embodiments described herein can be combined with other embodiments.

[0021] To enable those skilled in the art to better understand the present invention, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings.

[0022] like Figures 1-4As shown, this utility model provides a reagent level detection circuit for an automatic staining device, including a power supply, a voltage adjustment circuit, an automatic staining device main control circuit, a reagent level detection circuit, and a touch screen. The output of the power supply is connected to the voltage adjustment circuit and the reagent level detection circuit. The output of the voltage adjustment circuit is connected to the automatic staining device main control circuit. The output of the automatic staining device main control circuit is connected to the input of the reagent level detection circuit. The output of the reagent level detection circuit is connected to the input of the automatic staining device main control circuit. The automatic staining device main control circuit is also connected to the touch screen for communication. The touch screen can input information via touch. The reagent level detection circuit has multiple staining reagent level detection sensor interfaces. The staining reagent temporary storage component of the automatic staining device has multiple staining reagent temporary storage tanks, and each staining reagent temporary storage tank has at least one staining reagent level detection sensor interface. In this embodiment, the main control circuit of the automatic staining equipment can control the reagent level detection circuit to detect the staining reagent level in the staining reagent storage tank and feed it back to the main control circuit of the automatic staining equipment, which then transmits it to the touch screen for display. This enables the automatic acquisition of the remaining staining reagent in the staining reagent storage component and the automatic addition of supplementary staining reagent to the staining reagent storage component. This ensures that there is staining reagent in the staining reagent storage component, which can be added to the staining tank for staining operations. No manual operation is required, saving time and effort and reducing the risk of errors. It also eliminates the possibility of forgetting to add staining reagent, significantly improving the production efficiency and product quality of biological tissue sample section microscope slides.

[0023] like Figure 2 As shown, the main control circuit of the automatic dyeing equipment includes a main control chip U5 and a fuse resistor FB13. The main control chip U5 is an STM32F407ZGT6 with 140 pins. Pin 32 of the main control chip U5 is connected to pin 33 and one end of the fuse resistor FB13. The other end of the fuse resistor FB13 is connected to the output of the voltage adjustment circuit. Pins 88, 89, 82, 85, 86, 79, 80, and 81 of the main control chip U5 are connected to the reagent level detection circuit, and pins 96, 97, and 113 are connected to the touch screen display. In this embodiment, the main control circuit of the automatic dyeing equipment controls the reagent level detection circuit to detect the dyeing reagent level in the dyeing reagent storage tank and feed it back to the main control circuit, which then transmits it to the touch screen display. It also controls the addition of supplementary dyeing reagent to the dyeing reagent storage component of the automatic dyeing equipment, ensuring that there is sufficient dyeing reagent in the storage component for dyeing operations.

[0024] like Figure 3As shown, the voltage regulation circuit includes a voltage regulator chip U4, a diode D5, a resistor R16, a capacitor CT3, and a capacitor C28. The voltage regulator chip U4 is model LM1085IS-3.3 / NOPB, and it has four pins. Pin 3 of U4 is connected to one end of capacitor CT3, one end of capacitor C28, and the output terminal of the power supply. Pin 2 of U4 is connected to pin 4 of U4, one end of resistor R16, and the other end of fuse resistor FB13. The other end of resistor R16 is connected to the diode D5. The positive terminal of diode D5 is connected to the ground. Pin 1 of voltage regulator chip U4, the other end of capacitor CT3, the other end of capacitor C28, and the negative terminal of diode D5 are grounded. The voltage adjustment circuit also includes capacitors CT4, C29, C254, and C255. Pin 2 of voltage regulator chip U4 is connected to one end of capacitor CT4, one end of capacitor C29, one end of capacitor C254, and one end of capacitor C255. The other ends of capacitors CT4, C29, C254, and C255 are grounded. In this embodiment, the voltage adjustment circuit is used to power the main control circuit of the automatic dyeing equipment.

[0025] like Figure 4As shown, the reagent level detection circuit includes a dyeing reagent level detection sensor interface J1, diode D1, dyeing reagent level detection sensor interface J2, dyeing reagent level detection sensor interface J3, diode D3, dyeing reagent level detection sensor interface J4, and diode D4. Pin 1 of dyeing reagent level detection sensor interface J1 is connected to the negative terminal of diode D1 and pin 88 of the main control chip U5; the positive terminal of diode D1 is connected to the output terminal of the power supply. Pin 1 of dyeing reagent level detection sensor interface J2 is connected to the negative terminal of diode D2 and pin 89 of the main control chip U5; the positive terminal of diode D2 is connected to the output terminal of the power supply. Pin 1 of dyeing reagent level detection sensor interface J3 is connected to the negative terminal of diode D3 and pin 82 of the main control chip U5; the positive terminal of diode D3 is connected to the output terminal of the power supply. Pin 1 of dyeing reagent level detection sensor interface J4 is connected to the negative terminal of diode D4 and pin 85 of the main control chip U5; the positive terminal of diode D4 is connected to the output terminal of the power supply. The reagent level detection circuit also includes a dyeing reagent level detection sensor interface J5, diode D5, dyeing reagent level detection sensor interface J6, diode D6, dyeing reagent level detection sensor interface J7, diode D7, dyeing reagent level detection sensor interface J8, and diode D8. Pin 1 of dyeing reagent level detection sensor interface J5 is connected to the negative terminal of diode D5 and pin 86 of the main control chip U5, while the positive terminal of diode D5 is connected to the output terminal of the power supply. Pin 1 of dyeing reagent level detection sensor interface J6 is connected to the negative terminal of diode D6 and pin 79 of the main control chip U5, while the positive terminal of diode D6 is connected to the output terminal of the power supply. Pin 1 of dyeing reagent level detection sensor interface J7 is connected to the negative terminal of diode D7 and pin 80 of the main control chip U5, while the positive terminal of diode D7 is connected to the output terminal of the power supply. Pin 1 of dyeing reagent level detection sensor interface J8 is connected to the negative terminal of diode D8 and pin 81 of the main control chip U5, while the positive terminal of diode D8 is connected to the output terminal of the power supply. Among them, the model of the dyeing reagent level detection sensor interfaces J4, J5, J6, J1, J2, J3, J7, and J8 is all KF2EDGV-2.54-3P-Z. In this embodiment, the reagent level detection circuit is used to detect the model of the dyeing reagent in the dyeing reagent temporary storage component of the automatic dyeing equipment and feed it back to the main control circuit of the automatic dyeing equipment.

[0026] As can be seen from the above, this utility model provides a reagent level detection circuit for an automatic staining device. By setting up a power supply, voltage adjustment circuit, main control circuit of the automatic staining device, reagent level detection circuit, and touch screen in the reagent level detection circuit, the main control circuit of the automatic staining device can control the reagent level detection circuit to detect the staining reagent level in the staining reagent storage tank and feed it back to the main control circuit of the automatic staining device, which is then transmitted to the touch screen for display. This enables the automatic acquisition of the remaining staining reagent in the staining reagent storage component and the automatic addition of supplementary staining reagent to the staining reagent storage component. This ensures that there is staining reagent in the staining reagent storage component, which can be added to the staining tank for staining operations without manual operation, saving time and effort, reducing errors, and eliminating the possibility of forgetting to add staining reagent. This significantly improves the production efficiency and product quality of microscope slides for biological tissue sample sections, enhances the user experience, and solves the problem of time-consuming, labor-intensive, and error-prone manual addition of staining reagent during staining operations in existing biological tissue sample section staining equipment.

[0027] The specific embodiments described above are preferred embodiments of this utility model, and are not intended to limit the specific scope of this utility model. The scope of this utility model includes but is not limited to the specific embodiments described above. All equivalent changes made in accordance with this utility model are within the protection scope of this utility model.

Claims

1. A reagent balance detection circuit for an automated staining device, characterized in that: The system includes a power supply, a voltage adjustment circuit, an automatic staining equipment main control circuit, a reagent level detection circuit, and a touch screen. The output of the power supply is connected to the voltage adjustment circuit and the reagent level detection circuit. The output of the voltage adjustment circuit is connected to the automatic staining equipment main control circuit. The output of the automatic staining equipment main control circuit is connected to the input of the reagent level detection circuit. The output of the reagent level detection circuit is also connected to the input of the automatic staining equipment main control circuit. The automatic staining equipment main control circuit is also communicatively connected to the touch screen, which allows for touch input of information. The reagent level detection circuit has multiple staining reagent level detection sensor interfaces. The automatic staining equipment's staining reagent temporary storage component has multiple staining reagent temporary storage tanks, each of which has at least one staining reagent level detection sensor interface. The automatic staining equipment main control circuit can control the reagent level detection circuit to detect the staining reagent level in the staining reagent temporary storage tanks and feed it back to the automatic staining equipment main control circuit for display on the touch screen.

2. The reagent balance detection circuit for an automated staining device according to claim 1, characterized in that: The main control circuit of the automatic staining equipment includes a main control chip U5 and a fuse resistor FB13. The main control chip U5 has 140 pins. Pin 32 of the main control chip U5 is connected to pin 33 of the main control chip U5 and one end of the fuse resistor FB13. The other end of the fuse resistor FB13 is connected to the output terminal of the voltage adjustment circuit. Pins 88, 89, 82, 85, 86, 79, 80, and 81 of the main control chip U5 are connected to the reagent level detection circuit. Pins 96, 97, and 113 of the main control chip U5 are connected to the touch screen display.

3. The reagent balance detection circuit for an automated staining device according to claim 2, characterized in that: The voltage regulation circuit includes a voltage regulator chip U4, a diode D5, a resistor R16, a capacitor CT3, and a capacitor C28. The voltage regulator chip U4 has four pins. The third pin of the voltage regulator chip U4 is connected to one end of the capacitor CT3, one end of the capacitor C28, and the output terminal of the power supply. The second pin of the voltage regulator chip U4 is connected to the fourth pin of the voltage regulator chip U4, one end of the resistor R16, and the other end of the fuse resistor FB13. The other end of the resistor R16 is connected to the positive terminal of the diode D5. The first pin of the voltage regulator chip U4, the other end of the capacitor CT3, the other end of the capacitor C28, and the negative terminal of the diode D5 are grounded.

4. The reagent balance detection circuit for an automated staining device according to claim 3, characterized in that: The voltage adjustment circuit also includes capacitors CT4, C29, C254, and C255. The second pin of the voltage regulator chip U4 is connected to one end of capacitor CT4, one end of capacitor C29, one end of capacitor C254, and one end of capacitor C255. The other ends of capacitors CT4, C29, C254, and C255 are grounded.

5. The reagent balance detection circuit for an automated staining device according to claim 4, characterized in that: The reagent level detection circuit includes a staining reagent level detection sensor interface J1, diode D1, a staining reagent level detection sensor interface J2, a staining reagent level detection sensor interface J3, a staining reagent level detection sensor interface J4, and a diode D4. Pin 1 of the staining reagent level detection sensor interface J1 is connected to the negative terminal of diode D1 and pin 88 of the main control chip U5. The positive terminal of diode D1 is connected to the output terminal of the power supply. Pin 1 of the staining reagent level detection sensor interface J2 is connected to... The negative terminal of diode D2 is connected to pin 89 of the main control chip U5, and the positive terminal of diode D2 is connected to the output terminal of the power supply. Pin 1 of the staining reagent level detection sensor interface J3 is connected to the negative terminal of diode D3 and pin 82 of the main control chip U5, and the positive terminal of diode D3 is connected to the output terminal of the power supply. Pin 1 of the staining reagent level detection sensor interface J4 is connected to the negative terminal of diode D4 and pin 85 of the main control chip U5, and the positive terminal of diode D4 is connected to the output terminal of the power supply.

6. The reagent balance detection circuit for an automated staining device according to claim 5, characterized in that: The reagent level detection circuit also includes a staining reagent level detection sensor interface J5, diode D5, a staining reagent level detection sensor interface J6, diode D6, a staining reagent level detection sensor interface J7, diode D7, a staining reagent level detection sensor interface J8, and diode D8. Pin 1 of the staining reagent level detection sensor interface J5 is connected to the negative terminal of diode D5 and pin 86 of the main control chip U5. The positive terminal of diode D5 is connected to the output terminal of the power supply. Pin 1 of the staining reagent level detection sensor interface J6 is connected to... The negative terminal of diode D6 is connected to pin 79 of the main control chip U5, and the positive terminal of diode D6 is connected to the output terminal of the power supply. Pin 1 of the staining reagent level detection sensor interface J7 is connected to the negative terminal of diode D7 and pin 80 of the main control chip U5, and the positive terminal of diode D7 is connected to the output terminal of the power supply. Pin 1 of the staining reagent level detection sensor interface J8 is connected to the negative terminal of diode D8 and pin 81 of the main control chip U5, and the positive terminal of diode D8 is connected to the output terminal of the power supply.

7. The reagent balance detection circuit for an automated staining device according to claim 6, characterized in that: The main control chip U5 is an STM32F407ZGT6, the voltage regulator chip U4 is an LM1085IS-3.3 / NOPB, and the dyeing reagent level detection sensor interfaces J4, J5, J6, J1, J2, J3, J7, and J8 are all model KF2EDGV-2.54-3P-Z.

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