Small-dose drug management system
Through the combination of strain gauge and voltage sensor, combined with dynamic compensation and filtering algorithms, the problem of susceptibility to interference in traditional drug management systems is solved, accurate judgment of the existence status of the drug and high reliability management are achieved, and cost and risk of false alarms and missed reports is reduced. .
Patent Information
- Application Number
- CN202411125328.6
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- Filing Date
- 2024-08-16
- Publication Date
- 2024-12-17
- Estimated Expiration
- Not applicable · inactive patent
AI Technical Summary
Traditional low-dose drug management systems are susceptible to metal objects or electromagnetic interference and ambient light interference, which makes it difficult to ensure detection accuracy and stability, and false alarms or missed reports, affecting the accuracy of drug management.
The combination of strain gauge and voltage sensor is used to generate deformation through the gravity of the drug and detect voltage changes. The data analysis is performed by combining the MCU circuit board and management terminal. Dynamic compensation algorithm and filtering algorithm are used to correct the data to ensure accurate judgment of the drug's existence status.
It improves the accuracy and reliability of drug management, avoids false alarms and missed reports, reduces hardware costs, and maintains the stability of detection results in complex environments.
Smart Images

Figure CN119148247A_ABST
Abstract
Description
Technical Field
[0001] The present invention belongs to the technical field of drug management, and more specifically, particularly relates to a small-dose drug management system. Background Art
[0002] In the field of modern medicine and drug management, the management of small-dose drugs is very important; small-dose drugs are usually used in specific treatment scenarios in medical practice, and their use and monitoring will be directly related to the patient's treatment effect and safety.
[0003] For example, the Chinese invention patent with patent number 201980048563.9 provides a drug management system, which installs IC tags on drugs when in use, stores drugs in drug storage boxes and reads IC tags, and then sends information to a control device to manage the entry and exit of drugs. However, traditional management systems identify drugs by labeling them. The communication between IC tags or RFID tags and control devices may be interfered by metal objects or electromagnetic interference, and the photoelectric solution is often interfered by ambient light. The detection accuracy and stability are difficult to guarantee, resulting in false alarms or missed alarms, which affects the accuracy of drug management. Summary of the invention
[0004] In order to solve the above technical problems, the present invention provides a small-dose drug management system to solve the technical problem in the prior art that the traditional management system identifies the drugs by labeling them, and the communication between the IC tag or RFID tag and the control device may be interfered by metal objects or electromagnetic interference, and the photoelectric solution is often interfered by ambient light, and its detection accuracy and stability are difficult to guarantee, resulting in false alarms or missed alarms from time to time, affecting the accuracy of drug management.
[0005] The purpose and efficacy of a small-dose drug management system of the present invention are achieved by the following specific technical means:
[0006] A small-dose drug management system, including drugs, strain gauges, voltage sensors, MCU circuit boards and storage equipment;
[0007] The strain gauge is used to carry the medicine and is deformed by the gravity of the medicine;
[0008] The voltage sensor is used to detect the voltage value generated by the strain gauge after deformation;
[0009] The MCU circuit board is used to obtain the voltage value detected by the voltage sensor;
[0010] The storage device is used to store multiple groups of the medicines.
[0011] As a further solution of the present invention, one side of the MCU circuit board is connected to a management terminal via a 485 bus;
[0012] The management terminal is used to analyze the voltage value to determine the existence status of the drug.
[0013] As a further solution of the present invention, the analysis includes calibrating the voltage sensor, and the calibration operation includes calculating the voltage value generated when each group of strain gauges is deformed by a standard weight of 10g to 30g, and recording the voltage value as reference data; then the voltage sensor is left to stand for tens of seconds, the voltage value of the strain gauge at this time is obtained for zeroing, and the voltage value record is saved separately.
[0014] As a further embodiment of the present invention, the determining the existence status of the drug includes:
[0015] When the medicine exists, it will inevitably generate gravity on the strain gauge at the corresponding position, causing the strain gauge to deform. The MCU circuit board obtains the voltage value of the strain gauge at this time through the corresponding voltage sensor, and compares it with the voltage value generated by the standard weight after filtering algorithm. If the voltage value is greater than or equal to, it is considered that there is a heavy object, otherwise it is considered that there is no heavy object. The opposite is true when the medicine is taken away. The management terminal obtains the existence status of the medicine at the corresponding position by issuing instructions.
[0016] As a further solution of the present invention, the instructions include:
[0017] A data acquisition instruction is issued to all the voltage sensors at a frequency of 20ms, and correction is performed through a dynamic compensation algorithm. The dynamic compensation algorithm includes comparing the acquired data with the previous benchmark data, and the multiple acquired data present an increasing trend. 50% to 100% of the distortion data is added to the benchmark data, and conversely, 50% to 100% of the distortion data is reduced on the benchmark data to dynamically modify the threshold of the benchmark data to achieve the purpose of automatic adaptation.
[0018] As a further solution of the present invention, the filtering algorithm includes a prediction phase and an update phase;
[0019] The prediction stage includes: predicting the current state based on the previous state and the control input, and predicting the estimated uncertainty of the current state;
[0020] The update phase includes: using new measurement data to update the prediction, calculating a Kalman gain, determining which of the prediction and the measurement is more reliable, updating the estimated state and the estimated uncertainty, and then fusing the two results to achieve an optimal estimate of the system state.
[0021] As a further solution of the present invention, the storage device includes a storage cabinet, N groups of storage slots are opened on one side of the storage cabinet, drawers with sliding switches are arranged in the N groups of storage slots, four groups of MCU circuit boards are installed on the N groups of drawers, multiple groups of strain gauges and voltage sensors are arranged on the top of the four groups of MCU circuit boards, and the multiple groups of voltage sensors are respectively located on one side of the multiple groups of strain gauges; the N groups are four groups or five groups.
[0022] As a further solution of the present invention, the same group of carrier frames are also arranged on the top of the four groups of MCU circuit boards, and multiple groups of placement holes are opened on the top of the carrier frames corresponding to the multiple groups of strain gauges, and the multiple groups of placement holes are all used to place the medicines. Multiple groups of mounting holes are respectively opened on one side of the multiple groups of placement holes, and LED indicator lights are arranged in the multiple groups of mounting holes, and the multiple groups of LED indicator lights are respectively connected to the four groups of MCU circuit boards.
[0023] As a further solution of the present invention, the multiple groups of LED indicator lights on the top of the carrier frame are arranged in four columns, and the four columns of LED indicator lights are respectively located in four groups of classification areas, and corresponding drug identifications are provided at one end of the four groups of classification areas.
[0024] Compared with the prior art, the present invention has the following beneficial effects:
[0025] 1. Through the setting of strain gauges and voltage sensors, the existence status of drugs can be monitored in real time; when using the management system, the strain gauge carries the drugs and produces deformation through its gravity, and then the voltage sensor detects the voltage change corresponding to the deformation. By comparing and analyzing the detected voltage value with the pre-recorded standard weight data, it can be accurately determined whether the drugs exist; it solves the problem that the traditional management system is easily interfered with, which affects the accuracy of drug management. It is not easily affected by metal or electromagnetic interference, nor will it be disturbed by ambient light, thereby ensuring the accuracy and reliability of drug monitoring and effectively avoiding false alarms and omissions.
[0026] 2. Through the setting of dynamic compensation algorithm, when using the management system, it can correct the weighing error caused by the change of ambient temperature in real time, maintain the stability of output data in various complex environments such as high and low temperature, greatly reduce data distortion, and ensure the accuracy of the test results; the system collects the data of each sensor at a high frequency of 20ms, and compares and analyzes it with the pre-recorded benchmark data. If the data is detected to show an increasing or decreasing trend, the threshold of the benchmark data will be increased or decreased accordingly, so as to dynamically adjust the compensation parameters and adaptively correct the weight drift caused by temperature changes. Whether it is an extremely small dose of medicine such as 1g or in harsh environmental conditions, it can achieve indiscriminate and accurate judgment, almost eliminating the occurrence of false alarms and missed reports, providing highly reliable protection for drug management and improving the reliability of drug management.
[0027] 3. By adopting a combined detection method of strain gauges and voltage sensors, the high cost of RFID tags and photoelectric detection is avoided; there is no need to use expensive and easily interfered IC tags or RFID tags, nor is there a need for complex photoelectric equipment, which greatly reduces the cost of hardware procurement and maintenance, providing an economical and efficient solution for drug management. BRIEF DESCRIPTION OF THE DRAWINGS
[0028] Figure 1 It is a principle block diagram of a small-dose drug management system of the present invention;
[0029] Figure 2 It is a flow chart of a small dose drug management system of the present invention;
[0030] Figure 3 It is a structural schematic diagram of a small-dose drug management system of the present invention;
[0031] Figure 4 It is a schematic diagram of the structure of a small-dose drug management system of the present invention after the carrier frame and the drawer are assembled;
[0032] Figure 5 yes Figure 4 Schematic diagram of the structure after splitting;
[0033] Figure 6 It is a structural schematic diagram of a carrier framework in a small-dose drug management system of the present invention;
[0034] Figure 7 It is a simulation diagram of a filtering algorithm in a small-dose drug management system of the present invention.
[0035] In the figure, the corresponding relationship between the component names and the figure numbers is as follows:
[0036] 11. Medicines; 12. Strain gauges; 13. Voltage sensors; 14. MCU circuit boards; 15. 485 bus; 16. Management terminals; 21. Storage cabinets; 22. Storage slots; 23. Drawers; 24. Carrier frames; 25. Placement holes; 26. Mounting holes; 27. LED indicator lights; 28. Classification areas; 29. Medicine labels. DETAILED DESCRIPTION
[0037] The following is a further detailed description of the embodiments of the present invention in conjunction with the accompanying drawings and examples. The following examples are used to illustrate the technical solutions of the present invention, but cannot be used to limit the scope of protection of the present invention.
[0038] Example:
[0039] As attached Figures 1 to 7 As shown:
[0040] The present invention provides a small-dose drug management system, comprising a drug 11, a strain gauge 12, a voltage sensor 13, an MCU circuit board 14 and a storage device; the strain gauge 12 is used to carry the drug 11 and is deformed by the gravity of the drug 11; when the drug 11 is placed on the strain gauge 12, the gravity of the drug 11 will cause the strain gauge 12 to deform to a certain extent; and this deformation will cause changes in the distribution of electrons inside the strain gauge 12, thereby generating a measurable voltage change; and the voltage sensor 13 is responsible for real-time detection of this voltage change, and transmits the detection result to a central processing unit MCU circuit board 14; the MCU circuit board 14 is used to obtain the voltage value detected by the voltage sensor 13; the storage device is used to store multiple groups of drugs 11, which ensures the safe storage of the drugs 11, and is also conducive to unified control of the entire system, further improving the accuracy of drug management.
[0041] Please refer to Figure 1 As shown, one side of the MCU circuit board 14 is connected to a management terminal 16 via a 485 bus 15. The MCU circuit board 14 is responsible for collecting the data detected by the voltage sensor 13, and then transmitting this information to the management terminal 16 via the standard 485 bus 15. The management terminal 16 analyzes the collected voltage values, thereby quickly and accurately determining the existence status of the drug 11 and providing comprehensive monitoring information for management personnel.
[0042] The system realizes real-time monitoring of the existence status of the drug 11 by setting the strain gauge 12 and the voltage sensor 13; specifically, when the drug 11 is placed on the strain gauge 12, the gravity of the drug 11 will cause the strain gauge 12 to deform, and then the voltage sensor 13 detects the voltage change corresponding to the deformation, and the voltage data detected by the voltage sensor 13 is obtained through the MCU circuit board 14 and sent to the management terminal 16. After receiving the data from the voltage sensor 13, the management terminal 16 will compare and analyze it with the pre-recorded standard weight data, so as to accurately determine whether there is currently a drug 11 on the strain gauge 12, which solves the problem that the traditional management system is easily disturbed, resulting in the accuracy of drug management being affected, is not easily affected by metal or electromagnetic interference, and will not be disturbed by ambient light, thereby ensuring the accuracy and reliability of drug monitoring, and effectively avoiding false alarms and omissions.
[0043] By adopting the combined detection method of strain gauge 12 and voltage sensor 13, while effectively avoiding the high cost problem caused by traditional RFID tags and photoelectric detection, it also provides an economical and efficient solution for drug management; compared with common RFID tags or complex photoelectric devices, the hardware cost of strain gauge 12 and voltage sensor 13 is significantly lower; RFID tags usually need to be equipped with special reading and writing equipment, while the photoelectric detection system requires multiple sensors and supporting processing units, which greatly increase the purchase and maintenance cost of the overall system; in contrast, the working principle of strain gauge 12 and voltage sensor 13 is relatively simple, without the need for additional expensive IC tags or cumbersome photoelectric equipment, only MCU circuit board 14 and management terminal 16 are required for data collection and analysis, which greatly reduces the hardware investment of the system; at the same time, strain gauge 12 and voltage sensor 13 are not easily affected by external environmental factors, such as metal objects or electromagnetic fields, which makes the entire detection process more stable and reliable, avoids false alarms and missed alarms, which not only improves the accuracy of drug management, but also provides effective guarantee for the long-term operation of the system, further reduces the subsequent maintenance cost, and provides an economical and efficient solution for drug management.
[0044] The analysis includes calibration operation of the voltage sensor 13. First, by using standard weights ranging from 10g to 30g to be applied to the strain gauge 12, the management terminal 16 can calculate the corresponding voltage values generated by each group of strain gauges 12 under different gravity loads, and record these voltage values as reference data. Then, the management terminal 16 allows the voltage sensor 13 to stand for tens of seconds to obtain the zero-point voltage value of the strain gauge 12 at this time, and records it for subsequent zeroing operations. Through the above calibration process, the management terminal 16 can establish the voltage-weight correspondence relationship of the strain gauge 12 under different load conditions, laying a solid foundation for the subsequent judgment of the existence status of the drug 11. On the one hand, when the management terminal 16 obtains the voltage value collected by the voltage sensor 13 in real time, it can be converted in combination with the pre-saved reference data to obtain the weight information of the current drug 11. On the other hand, the management terminal 16 can also use the zero-point voltage value as a reference to dynamically monitor the voltage change of the strain gauge 12. Once an abnormal situation is found, it can quickly determine that the existence status of the drug 11 has changed.
[0045] The management terminal 16 can accurately determine the existence status of the medicine 11 by comprehensively analyzing the data collected by the voltage sensor 13; specifically, when the medicine 11 is placed at the corresponding position, its own gravity will produce pressure on the corresponding strain gauge 12, causing it to deform. At this time, the MCU circuit board 14 will obtain the voltage value generated by the strain gauge 12 through the voltage sensor 13; the management terminal 16 will filter this voltage value and compare it with the voltage value generated by the standard weight collected during the previous calibration. If the current voltage value is greater than or equal to the standard data, the management terminal 16 will determine that there is a heavy object at the position, that is, the medicine 11 is still in place; conversely, if the voltage value is lower than the standard data, the management terminal 16 will believe that the medicine 11 at the position has been taken away; in addition, the management terminal 16 can also actively issue instructions, requiring the MCU circuit board 14 to feedback the existence status of each medicine 11 position; in this way, the management terminal 16 can always grasp the inventory status of the medicine 11 in the storage device.
[0046] The instructions include: issuing data acquisition instructions to all voltage sensors 13 at a high frequency of 20ms. Due to the influence of external temperature, the voltage sensors 13, the MCU circuit board 14 carrying them, and the entire carrier frame 24 and the drug container will produce data offsets as the temperature changes; if the dynamic compensation algorithm is not used for correction and combined with the filtering algorithm to optimize the data, false alarms may occur; specifically, the principle of the dynamic compensation algorithm is as follows: the management terminal 16 will compare and analyze the real-time acquired data with the previous benchmark data. If the data acquired multiple times shows an increasing trend, 50% to 100% of the distortion data will be added to the judgment benchmark data; conversely, if the data shows a decreasing trend, 50% to 100% of the distortion data will be reduced from the judgment benchmark data. The management terminal 16 will automatically adjust the threshold of the judgment benchmark data based on this dynamic analysis result to adapt to the impact of temperature changes, ensure the accuracy and reliability of the data, and achieve the purpose of automatic adaptation.
[0047] Through the setting of dynamic compensation algorithm, the management system can correct the weighing error caused by the change of ambient temperature in real time. No matter facing various complex environmental conditions such as high and low temperature, the system can maintain the stability of output data, greatly reduce the data distortion caused by temperature change, and ensure the accuracy of the test results. Specifically, the system collects the data of each sensor at a high frequency of 20ms, and compares and analyzes it with the pre-recorded benchmark data. If the data is detected to show an increasing or decreasing trend, the threshold of the benchmark data will be increased or decreased accordingly, so as to dynamically adjust the compensation parameters and adaptively correct the weight drift caused by temperature change. Whether it is an extremely small dose of medicine such as 1 gram or in harsh environmental conditions, the system can achieve indiscriminate and accurate judgment, almost eliminating the occurrence of false alarms and missed reports, providing highly reliable protection for the entire drug management system and greatly improving the reliability of drug management.
[0048] The filtering algorithm includes Kalman filtering, which is an efficient recursive filter. Kalman filtering can estimate the state of a dynamic system in noisy observation data. It is based on the state space representation of linear dynamic systems, assuming that the system state is linear, and that both process noise and observation noise are Gaussian distributed. The basic principle of the Kalman filter can be divided into two steps: prediction stage and update stage. In the prediction stage, the current state is predicted based on the previous state and control input of the system, and the estimated uncertainty of the current state is predicted at the same time. In the update stage, the prediction is updated using new measurement data, a Kalman gain is calculated, and it is determined which part of the prediction and measurement is more reliable. The estimated state and estimated uncertainty are updated, and the two results are then merged to achieve the optimal estimate of the system state. Even in a continuously changing dynamic system with uncertain information such as noise, the Kalman filter can predict and correct the state of the system, find out what is actually happening, and use the correlation between crazy phenomena that may not be used to achieve efficient recursive filtering.
[0049] Please refer to Figure 3 , Figure 4 and Figure 5 As shown, the storage device includes a storage cabinet 21, one side of which is provided with N groups of storage slots 22, each group of storage slots 22 is provided with a slidable drawer 23, each group of drawers 23 is installed with four groups of MCU circuit boards 14, the top of each group of MCU circuit boards 14 is provided with multiple groups of strain gauges 12 and multiple groups of voltage sensors 13, and the multiple groups of voltage sensors 13 are respectively located on one side of the multiple groups of strain gauges 12; the N groups here can be four groups or five groups; by installing multiple MCU circuit boards 14 on the drawers 23 of the storage cabinet 21, each circuit board is provided with a strain gauge 12 and a voltage sensor 13, the status information of the medicines 11 can be monitored and collected in real time inside the storage cabinet 21.
[0050] Please refer to Figure 5 and Figure 6As shown, the top of the four groups of MCU circuit boards 14 is also provided with the same group of carrier frames 24, and the top of the carrier frames 24 is provided with multiple groups of placement holes 25 corresponding to the multiple groups of strain gauges 12, and these placement holes 25 are all used to place the medicines 11. At the same time, multiple groups of mounting holes 26 are respectively provided on one side of the multiple groups of placement holes 25, and LED indicator lights 27 are provided in these mounting holes 26, and these LED indicator lights 27 are respectively connected to the four groups of MCU circuit boards 14. By providing placement holes 25 on the carrier frames 24 to place the medicines 11, and opening mounting holes 26 next to the placement holes 25 to install the LED indicator lights 27, the MCU circuit boards 14 can monitor and indicate the medicines 11 placed thereon in real time, provide users with more intelligent and intuitive medication prompts, ensure medication safety and medication effects; effectively improve the management efficiency and convenience of the medicines 11, and improve the comprehensive performance of the entire storage system.
[0051] Please refer to Figure 6 As shown, a plurality of groups of LED indicator lights 27 are arranged on the top of the carrier frame 24, and these LED indicator lights 27 are arranged in four columns and are respectively located in four groups of classification areas 28; corresponding drug identifications 29 are provided at one end of the four groups of classification areas 28, and by distributing the LED indicator lights 27 in different classification areas 28 and setting drug identifications 29 at one end of each area, different types of drugs 11 can be more clearly zoned and managed, providing users with clearer drug classification instructions; when the MCU circuit board 14 detects that a drug 11 in a certain placement hole 25 needs to be taken, it will light up the LED indicator light 27 in the corresponding classification area 28 and display the drug identification 29 at the same time, allowing users to quickly and accurately find and take the required drugs 11; this not only helps to improve the efficiency and accuracy of drug management, but also enhances the human-computer interaction experience of the entire storage system, bringing users a more intelligent and convenient medication service.
[0052] The embodiments described above are only used to illustrate the technical solutions of the present invention, rather than to limit the same. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that the technical solutions described in the aforementioned embodiments may still be modified, or some of the technical features may be replaced by equivalents. Such modifications or replacements do not deviate the essence of the corresponding technical solutions from the spirit and scope of the technical solutions of the embodiments of the present invention, and should all be included in the protection scope of the present invention.
Claims
1. A small dose drug management system, characterized by: It includes medicine (11), strain gauge (12), voltage sensor (13), MCU circuit board (14) and storage equipment; The strain gauge (12) is used to carry the medicine (11) and is deformed by the gravity of the medicine (11); The voltage sensor (13) is used to detect the voltage value generated by the strain gauge (12) after deformation; The MCU circuit board (14) is used to obtain the voltage value detected by the voltage sensor (13); The storage device is used to store multiple groups of the medicines (11).
2. A small-dose drug management system according to claim 1, characterized in that: One side of the MCU circuit board (14) is connected to a management terminal (16) via a 485 bus (15); The management terminal (16) is used to analyze the voltage value to determine the existence status of the medicine (11).
3. A small dose drug management system according to claim 2, characterized in that: The analysis includes calibrating the voltage sensor (13), wherein the calibration operation includes calculating the voltage value generated when each group of strain gauges (12) is deformed by using a standard weight of 10 g to 30 g, and recording the voltage value as reference data; then, the voltage sensor (13) is left to stand for several tens of seconds, the voltage value of the strain gauge (12) at this time is obtained, a zeroing operation is performed, and the voltage value record is saved.
4. A small-dose drug management system according to claim 3, characterized in that: The determining of the existence status of the drug (11) includes: When the medicine (11) exists, it will inevitably generate gravity on the strain gauge (12) at the corresponding position, causing the strain gauge (12) to deform. The MCU circuit board (14) obtains the voltage value of the strain gauge (12) at this time through the corresponding voltage sensor (13), and compares it with the voltage value generated by the standard weight after filtering algorithm. If the voltage value is greater than or equal to, it is considered that there is a heavy object, otherwise it is considered that there is no heavy object, and the opposite is true when the medicine is taken away; the management terminal (16) obtains the existence status of the medicine at the corresponding position by issuing instructions.
5. A small dose drug management system according to claim 4, characterized in that: The instructions include: A data acquisition instruction is issued to all the voltage sensors (13) at a frequency of 20 ms, and correction is performed through a dynamic compensation algorithm. The dynamic compensation algorithm includes comparing the acquired data with the previous benchmark data, and the acquired multiple data present an increasing trend. The distortion data is increased by 50% to 100% on the basis of the judgment benchmark data, and conversely, the distortion data is reduced by 50% to 100% on the basis of the judgment benchmark data to dynamically modify the threshold of the judgment benchmark data to achieve the purpose of automatic adaptation.
6. A small dose drug management system according to claim 4, characterized in that: The filtering algorithm includes a prediction phase and an update phase; The prediction stage includes: predicting the current state based on the previous state and the control input, and predicting the estimated uncertainty of the current state; The update phase includes: using new measurement data to update the prediction, calculating a Kalman gain, determining which of the prediction and the measurement is more reliable, updating the estimated state and the estimated uncertainty, and then fusing the two results to achieve an optimal estimate of the system state.
7. A small dose drug management system according to claim 1, characterized in that: The storage device comprises a storage cabinet (21), one side of the storage cabinet (21) is provided with N groups of storage slots (22), each of the N groups of storage slots (22) is provided with a drawer (23) that can slide open and close, each of the N groups of drawers (23) is provided with four groups of MCU circuit boards (14), the tops of the four groups of MCU circuit boards (14) are provided with multiple groups of strain gauges (12) and voltage sensors (13), and the multiple groups of voltage sensors (13) are respectively located on one side of the multiple groups of strain gauges (12); the N groups are four or five groups.
8. A small-dose drug management system according to claim 2, characterized in that: The top of the four groups of MCU circuit boards (14) is also provided with a same group of carrier frames (24). The top of the carrier frames (24) is provided with a plurality of groups of placement holes (25) corresponding to the plurality of groups of strain gauges (12). The plurality of groups of placement holes (25) are all used to place the medicines (11). A plurality of groups of mounting holes (26) are respectively provided on one side of the plurality of groups of placement holes (25). LED indicator lights (27) are respectively provided in the plurality of groups of mounting holes (26). The plurality of groups of LED indicator lights (27) are respectively connected to the four groups of MCU circuit boards (14).
9. A small-dose drug management system according to claim 3, characterized in that: The multiple groups of LED indicator lights (27) on the top of the carrier frame (24) are arranged in four rows, and the four rows of LED indicator lights (27) are respectively located in four groups of classification areas (28), and one end of each of the four groups of classification areas (28) is provided with a corresponding drug identification (29).
