A garbage can with disinfection and sterilization function and a disinfection method thereof

Abstract

The application discloses a garbage can with disinfection and sterilization functions and a disinfection method thereof, and relates to the technical field of garbage cans.The garbage can body is provided with a lid which is hinged to the upper surface of the garbage can body, and an ultraviolet disinfection lamp is installed on the inner wall of the lid.The application realizes accurate monitoring of bacteria and viruses inside the garbage can through an innovative garbage can design and disinfection method, and timely and effective disinfection according to the monitoring results.The garbage can uses a new type of composite sensor to accurately detect the types and contents of various common bacteria and viruses.When the content of bacteria and viruses reaches a certain concentration, the ultraviolet disinfection lamp on the lid is automatically started to disinfect, which can avoid energy waste, improve the timeliness and effectiveness of disinfection, and ensure that each area inside the garbage can is fully disinfected through a reasonable disinfection method, thereby reducing the risk of bacteria and virus breeding and transmission and protecting environmental hygiene and public health.

Description

Technical Field

[0001] This invention relates to the field of trash can technology, specifically to a trash can with disinfection and sterilization functions and its disinfection method. Background Technology

[0002] In daily life and many public health settings, trash cans are essential facilities for garbage collection and temporary storage. As people's demands for environmental hygiene continue to rise, the health risks posed by bacteria and viruses breeding inside trash cans are receiving increasing attention. Traditional trash cans only have a simple garbage-holding function and lack effective disinfection and sterilization mechanisms. During the use of trash cans, various types of garbage, including but not limited to food scraps, waste paper, and household waste, carry a large number of bacteria, viruses, and other microorganisms. These microorganisms multiply rapidly in the warm, humid, and relatively enclosed environment inside the trash can. For example, household kitchen trash cans often contain leftover food and other organic waste, which easily attracts pests such as flies and cockroaches, and becomes a breeding ground for pathogenic microorganisms such as E. coli and Staphylococcus aureus. Trash cans in hospitals may contain various infectious pathogens, such as influenza viruses and tuberculosis bacteria. If they are not disinfected promptly and effectively, cross-infection can easily occur, posing a serious threat to the health of medical staff, patients, and their families.

[0003] To address the problem of bacterial and viral contamination in trash cans, some existing technologies have introduced trash cans with disinfection functions. However, these technologies still have many shortcomings. Some trash cans use timed disinfection, meaning the disinfection device is activated at fixed intervals. This method cannot disinfect according to the actual level of contamination inside the trash can. When trash has just been disposed of and the bacterial and viral content in the trash can is low, timed disinfection results in energy waste. Conversely, when trash accumulates and contamination becomes severe, disinfection may not be possible before the scheduled time, leading to the proliferation of bacteria and viruses. Therefore, it is necessary to propose a trash can with disinfection and sterilization functions and its disinfection method to solve the problems in existing technologies. Summary of the Invention

[0004] The purpose of this invention is to overcome the shortcomings of the prior art and provide a trash can with disinfection and sterilization function and its disinfection method. It can accurately detect the types and contents of a variety of common bacteria and viruses. When the bacterial and virus contents reach a certain concentration, the ultraviolet disinfection lamp located on the lid is automatically activated for disinfection.

[0005] To solve the above-mentioned technical problems, the present invention provides the following technical solution: a trash can with disinfection and sterilization function, comprising a trash can body, a lid hinged to the upper surface of the trash can body, an ultraviolet disinfection lamp installed on the inner wall of the lid, an intelligent control module and a bacteria and virus monitoring sensor installed on the inner wall of the lid, the ultraviolet disinfection lamp being electrically connected to the intelligent control module via wires, the intelligent control module being electrically connected to the bacteria and virus monitoring sensor via wires, a handle being installed on the upper surface of the lid, a display module being installed on the upper surface of the lid, and a power supply component being installed on the upper surface of the lid.

[0006] Furthermore, the power supply component includes a protective box fixedly connected to the upper surface of the bucket lid, a rechargeable battery is installed inside the protective box, and a protective cover is installed on the top of the protective box.

[0007] Furthermore, the inner wall of the trash can body is coated with a nano self-cleaning coating. The main component of the nano self-cleaning coating is a composite of titanium dioxide nanoparticles and organosilicon polymers. The particle size of the nanoparticles is between - and 1 nanometer. This coating can decompose organic matter attached to the inner wall of the trash can under ultraviolet irradiation, reducing garbage residue and odor.

[0008] A method for disinfecting a trash can with disinfection and sterilization functions, the method comprising the following steps:

[0009] First, bacteria and viruses inside the trash can are monitored in real time using sensors located inside the can. The light scattering signal data acquired by the sensors is processed using the following algorithm: The light scattering signal intensity is defined as I, and at different time points t1, t2, ..., t... n The obtained light scattering signal intensities are respectively Define the rate of change of the signal R as:

[0010] Meanwhile, based on the signal strength of different microfluidic channels Where m is the number of channels, the comprehensive bacterial and viral index is calculated. in Let be the initial light scattering signal intensity of channel j;

[0011] When R exceeds the preset rate of change threshold R th Furthermore, the BVI exceeds the preset bacterial and viral index threshold. th When the concentration of bacteria and viruses inside the trash can reaches a level that requires disinfection;

[0012] At this time, the intelligent control module sends a start signal to the ultraviolet disinfection lamp located on the barrel cover, and the ultraviolet disinfection lamp continuously irradiates for a fixed time T at a fixed power P for disinfection. The method for determining the power P is: the rated power P is determined according to the model and specification of the ultraviolet disinfection lamp rated , and the power coefficient k for achieving effective disinfection in the internal environment of the trash can is determined through experiments, where 0<k≤1, then P=k×P rated , the method for determining the fixed time T is: the disinfection time per unit volume t is determined according to the volume V of the trash can and the disinfection experimental data on common bacteria and viruses unit , then T=t unit ×V.

[0013] Further, when determining the power coefficient k, the influence of the internal ambient temperature T env and humidity H env of the trash can is considered, and the specific calculation method is as follows: define the temperature influence coefficient C T and the humidity influence coefficient C H , when T env is 0-10 degrees Celsius, C T =0.8, when T env is 10-20 degrees Celsius, C T =1; when T env is 20-30 degrees Celsius, C T =1.2; when T env is higher than 30 degrees Celsius, C T =1.5, when H env is 30%-50%, C H =0.9; when H env is 50%-70%, C H =1, when H env is 70%-90%, C H =1.1, when H env is higher than 90%, C H =1.3, then the calculation formula for the power coefficient k is: k=C T ×C H ×k0, wherein k0 is the initial power coefficient, and this calculation method considering environmental factors can make the power of the ultraviolet disinfection lamp more consistent with the actual disinfection effect.

[0014] Furthermore, when calculating the disinfection time per unit volume t unit , the influence of the type of garbage in the trash can is considered, the garbage is divided into easily disinfected garbage type G1, including paper and plastic, and difficultly disinfected garbage type G2, including food residues and medical waste, the proportion of easily disinfected garbage in the trash can is defined as r1, and the proportion of difficultly disinfected garbage is defined as r2, wherein r1+r2=1, the disinfection time per unit volume of easily disinfected garbage is determined according to experiments Disinfection time per unit volume of difficult-to-disinfect waste but This calculation method, which takes into account the type of waste, can more accurately determine the disinfection time.

[0015] Furthermore, after the disinfection process is completed, the inside of the trash can is tested again using bacterial and viral monitoring sensors. If R still exceeds the rate of change threshold R... th 50% or more of the BVI still exceed the bacterial and viral index threshold. th If 30% of the trash can is not disinfected, the above disinfection process is repeated, up to a maximum of 3 times. If the disinfection requirements are still not met, an alarm message is displayed on the display module, prompting the user to check the trash can or perform manual cleaning. This feedback mechanism can ensure that bacteria and viruses inside the trash can are effectively controlled.

[0016] Furthermore, based on the cumulative usage time t of the ultraviolet disinfection lamp use It is calibrated periodically, and the formula for calculating the calibration cycle C is: Where T cal The preset total calibration time threshold is used. When the calibration cycle is reached, a disinfection experiment is conducted in the trash can using standard bacterial samples. The power coefficient k is adjusted according to the disinfection effect. This periodic calibration mechanism can ensure the stability of the disinfection effect of the ultraviolet disinfection lamp during long-term use.

[0017] Compared with existing technologies, this trash can with disinfection and sterilization functions and its disinfection method have the following beneficial effects:

[0018] This invention utilizes an innovative trash can design and disinfection method to achieve precise monitoring of bacteria and viruses inside the trash can, and to disinfect it promptly and effectively based on the monitoring results. The trash can of this invention employs a novel composite sensor that can accurately detect the types and amounts of various common bacteria and viruses. When the bacterial and viral concentrations reach a certain level, the ultraviolet disinfection lamp located on the lid is automatically activated for disinfection. This avoids energy waste and improves the timeliness and effectiveness of disinfection. Simultaneously, the reasonable disinfection method ensures that all areas inside the trash can are thoroughly disinfected, reducing the risk of bacterial and viral growth and transmission, and protecting environmental hygiene and public health.

[0019] Other advantages, objectives and features of the invention will be set forth in part in the description which follows, and in part will be apparent to those skilled in the art from the following examination or study, or may be learned from the practice of the invention. Attached Figure Description

[0020] To more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the accompanying drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are merely some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without any creative effort.

[0021] Figure 1 A three-dimensional structural diagram of a trash can with disinfection and sterilization functions;

[0022] Figure 2 A three-dimensional structural diagram of a trash can with disinfection and sterilization function after the lid is opened;

[0023] Figure 3 This is a schematic diagram of the internal structure of the protective box in a trash can with disinfection and sterilization functions.

[0024] In the picture: 1. Trash can body; 2. Lid; 3. Ultraviolet disinfection lamp; 4. Intelligent control module; 5. Bacteria and virus monitoring sensor; 6. Handle; 7. Display module; 8. Power supply component; 801. Protective box; 802. Rechargeable battery; 803. Protective cover; 9. Nano self-cleaning coating. Detailed Implementation

[0025] The technical solutions in the embodiments of the present invention will be clearly and completely described below. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the scope of protection of the present invention.

[0026] Example 1

[0027] In a hospital ward, a trash can with disinfection and sterilization function according to the present invention is placed. The trash can includes a trash can body 1, a lid 2 hinged to the upper surface of the trash can body 1, an ultraviolet disinfection lamp 3 installed on the inner wall of the lid 2, an intelligent control module 4 and a bacteria and virus monitoring sensor 5 installed on the inner wall of the lid 2, the ultraviolet disinfection lamp 3 being electrically connected to the intelligent control module 4 via wires, the intelligent control module 4 being electrically connected to the bacteria and virus monitoring sensor 5 via wires, a handle 6 installed on the upper surface of the lid 2, a display module 7 installed on the upper surface of the lid 2, and a power supply component 8 installed on the upper surface of the lid 2. The power supply component 8 includes a protective box 801 fixedly connected to the upper surface of the lid 2, and the protective box 801 contains... The device includes a rechargeable battery 802, which is electrically connected to an ultraviolet disinfection lamp 3, an intelligent control module 4, a bacteria and virus monitoring sensor 5, and a display module 7 via wires. A protective cover 803 is installed on the top of the protective box 801, and a slot is provided on the top of the protective box 801 to facilitate the installation of the protective cover 803. The inner wall of the trash can body 1 is coated with a nano self-cleaning coating 9. The main component of the nano self-cleaning coating 9 is a composite of titanium dioxide nanoparticles and organosilicon polymers. The particle size of the nanoparticles is between 20 and 50 nanometers. This coating can decompose organic matter attached to the inner wall of the trash can under ultraviolet irradiation, reducing garbage residue and odor.

[0028] The bacteria and virus monitoring sensors installed inside the trash can operate continuously. Assuming the trash can is in a hospital ward, after a period of use, the sensors detect bacteria and viruses at different time points t1, t2, ..., t... n Acquired light scattering signal intensity Given data, assuming the light scattering signal intensity is I, calculate the signal change rate. Simultaneously, based on the signal strength of different microfluidic channels (This trash can's sensor m is 5, capable of detecting information such as influenza virus, Streptococcus pneumoniae, Staphylococcus aureus, Escherichia coli, and Mycobacterium tuberculosis.) Calculate the comprehensive bacterial and viral index. in The initial light scattering signal intensity of channel j (already calibrated under the initial bacteria- and virus-free state of the trash can).

[0029] When R exceeds the preset rate of change threshold R th (R in this scenario) th According to hospital infection control standards, the BVI (Bacterial Virus Index) is set to a certain value, and the BVI exceeds the preset bacterial and viral index threshold. th (Also set according to hospital standards) When it is determined that the bacterial and viral content inside the trash can has reached the concentration required for disinfection, the intelligent control module sends a start signal to the ultraviolet disinfection lamp located on the lid.

[0030] The ultraviolet (UV) disinfection lamps here work on the principle of UV sterilization. UV radiation is an electromagnetic radiation with a wavelength of 10-400nm. The UV disinfection lamps used in this trash can have a wavelength within a specific sterilization range (200-280nm, especially around 253.7nm). UV radiation in this band can destroy the DNA or RNA structure of microorganisms (such as bacteria, viruses, fungi, etc.). When UV radiation hits microorganisms, its photon energy is absorbed by the nucleic acid of the microorganisms, causing covalent bonds to form between adjacent pyrimidine bases in the nucleic acid, forming pyrimidine dimers. The formation of these dimers interferes with the DNA replication and transcription process of microorganisms, thereby preventing the reproduction of microorganisms and ultimately leading to the death of microorganisms. The radiation intensity and irradiation time of the UV disinfection lamp are the key factors that determine the disinfection effect.

[0031] The power P and irradiation time T of an ultraviolet disinfection lamp are determined as follows: Based on the model and specifications of the ultraviolet disinfection lamp, its rated power P... rated Given a constant value, the power coefficient k was determined through multiple disinfection experiments in a hospital ward environment (considering environmental factors such as ward temperature and humidity, assuming k = 0.9). Therefore, P = k × P rated The volume V of the trash can is a fixed value (assumed to be 50L). The disinfection time t per unit volume is determined based on experimental data on the disinfection of bacteria and viruses in common hospital waste. unit (Given a specific value for the type of hospital waste and the ward environment), then T = t unit ×V, the ultraviolet disinfection lamp disinfects by continuous irradiation time T with power P.

[0032] When calculating the Comprehensive Bacterial Virus Index (BVI), the signal intensity of the microfluidic channel corresponding to different types of bacteria and viruses is considered. Weighted scores are applied. For example, influenza virus pathogenicity score is 8, transmissibility score is 7; Streptococcus pneumoniae pathogenicity score is 7, transmissibility score is 6; Staphylococcus aureus pathogenicity score is 7, transmissibility score is 7; Escherichia coli pathogenicity score is 6, transmissibility score is 5; Mycobacterium tuberculosis pathogenicity score is 9, transmissibility score is 8. These scores are then weighted according to a weighting coefficient. The weighting coefficients for each bacterium and virus are calculated so that the BVI can more accurately reflect the impact of different bacteria and viruses on disinfection requirements.

[0033] When determining the power coefficient k, the ambient temperature T inside the trash can should be considered. env and humidity H env Due to the influence of temperature, the ward temperature is generally maintained at 22-25 degrees Celsius, and the humidity is between 40% and 60%. This is determined by the corresponding temperature influence coefficient C. T (This temperature range C) T =1) and humidity influence coefficient C H (This humidity range C)H =1), combine the initial power coefficient k0 to calculate k, and calculate the disinfection time t per unit volume. unit At that time, the garbage in the hospital ward trash cans mainly consisted of medical waste (belonging to the difficult-to-sterilize waste type G2), accounting for nearly 1% of the total. According to experimental measurements, the disinfection time per unit volume of this difficult-to-sterilize waste was... Determine t unit .

[0034] After the disinfection process is complete, the sensor will detect the inside of the trash can again. If R still exceeds the rate of change threshold R... th 50% or more of the BVI still exceed the bacterial and viral index threshold. th If 30% of the waste is not disinfected, the above disinfection process should be repeated, up to a maximum of 3 times. If the disinfection requirements are still not met, an alarm message will be displayed on the display module of the waste bin, prompting medical staff to check the waste bin or perform manual cleaning. Simultaneously, the cumulative usage time t of the ultraviolet disinfection lamp will be used to determine the appropriate disinfection method. use According to the calibration cycle (Assume T) cal The power coefficient k is adjusted based on the lifespan of the ultraviolet lamp and the frequency of hospital disinfection (determined to a certain value). The lamp is calibrated periodically, and disinfection experiments are conducted in trash cans using standard bacterial samples.

[0035] The effects of this implementation are as follows: In the special environment of a hospital ward, trash cans can be precisely disinfected based on the level of bacteria and viruses inside, avoiding energy waste and untimely disinfection caused by scheduled disinfection. This reduces the risk of cross-infection caused by the growth of bacteria and viruses in trash cans. Medical staff do not need to frequently disinfect trash cans manually, reducing their workload. At the same time, it improves the overall hygiene quality of the ward, provides a safer medical environment for patients, and ensures the effective implementation of hospital infection control. In addition, understanding the working principle of ultraviolet disinfection lamps helps medical staff better understand the disinfection mechanism of trash cans, ensuring their normal use and maintenance.

[0036] Example 2

[0037] In school classrooms, trash cans with disinfection and sterilization functions, as described above, have been placed.

[0038] Bacteria and virus monitoring sensors inside the trash can continuously monitor the environment inside the can. During daily use, the sensors acquire data at different time points t1, t2, ..., t. n Light scattering signal intensity By calculating the rate of change of the signal Simultaneously, based on the signal strength of different microfluidic channels (This trash can sensor has m=3 and can detect information related to influenza viruses, E. coli, and common respiratory pathogens.) Calculate the comprehensive bacterial and viral index. (in The initial light scattering signal intensity of channel j is calibrated under the initial bacteria- and virus-free state of the trash can.

[0039] When R exceeds the preset rate of change threshold R th (Set according to school health standards) and BVI exceeds the preset bacterial and viral index threshold. th (Based on school hygiene standards) When the concentration of bacteria and viruses inside the trash can is determined to have reached the level required for disinfection, the intelligent control module sends a start signal to the ultraviolet disinfection lamp located on the lid.

[0040] The power P and irradiation time T of an ultraviolet disinfection lamp are determined as follows: The rated power P is determined based on the model and specifications of the ultraviolet disinfection lamp. rated The power coefficient k was determined through multiple experiments in a classroom environment (considering factors such as classroom temperature, humidity, and the frequency of student activities; assuming k = 0.85). Therefore, P = k × P rated The volume V of the trash can is a fixed value (assumed to be 30L). The disinfection time t per unit volume is determined based on experimental data on the disinfection of bacteria and viruses in common school waste. unit (Determined based on the type of school waste and classroom environment), then T = t unit ×V, the ultraviolet disinfection lamp disinfects by continuous irradiation time T with power P.

[0041] When calculating the Comprehensive Bacterial Virus Index (BVI), the signal intensity of the microfluidic channel corresponding to different types of bacteria and viruses was considered. Weighted scoring is applied; for example, influenza virus pathogenicity score is 7, transmissibility score is 6; Escherichia coli pathogenicity score is 6, transmissibility score is 5; common respiratory pathogens pathogenicity score is 6, transmissibility score is 6, and so on, based on weighting coefficients. Weighting coefficients are calculated to ensure that BVI accurately reflects the degree of disinfection requirements of different microorganisms.

[0042] When determining the power coefficient k, the ambient temperature T inside the trash can should be considered. env and humidity H env Due to the influence of temperature, classroom temperature is generally between 18-25 degrees Celsius, and humidity is between 40%-60%. This is determined by the corresponding temperature influence coefficient C. T (This temperature range C) T =1) and humidity influence coefficient C H (This humidity range C) H =1), and k is calculated by combining the initial power coefficient k0.

[0043] In calculating the disinfection time t per unit volume unit At that time, the trash in the school classroom trash cans mainly consisted of paper, food packaging, etc. (a mixture of easily disinfectable and moderately difficult-to-disinfect types, with easily disinfectable trash accounting for r1 = 0.6 and difficult-to-disinfect trash accounting for r2 = 0.4). The disinfection time per unit volume of easily disinfectable trash was determined experimentally. Disinfection time per unit volume of difficult-to-disinfect waste but

[0044] After the disinfection process is complete, the sensor will detect the inside of the trash can again. If R still exceeds the rate of change threshold R... th 50% or more of the BVI still exceed the bacterial and viral index threshold. th If 30% of the waste fails to meet the disinfection requirements, the above disinfection process will be repeated, up to a maximum of 3 times. If the disinfection requirements are still not met, an alarm message will be displayed on the display module of the trash can, prompting cleaning staff to check the trash can or perform manual cleaning. Simultaneously, the cumulative usage time t of the ultraviolet disinfection lamp will be used to determine the appropriate disinfection method. use According to the calibration cycle (Assume T) cal The UV lamps are calibrated regularly based on their lifespan and the school's cleaning cycle. Disinfection experiments are conducted in trash cans using standard bacterial samples, and the power coefficient k is adjusted based on the disinfection effect.

[0045] The benefits of this embodiment are as follows: In densely populated environments such as school classrooms, this trash can can accurately disinfect itself based on the level of bacteria and viruses inside, avoiding energy waste and insufficient disinfection caused by fixed-time disinfection. It effectively reduces the possibility of bacterial and viral growth and spread within the trash can, which helps reduce the risk of students and teachers contracting diseases in the classroom, creating a healthier learning environment for teachers and students. Cleaning staff can also promptly identify problematic trash cans through the automatic alarm function, reducing the workload of daily maintenance, ensuring the hygiene of the classroom, and benefiting the school's hygiene management.

[0046] It will be apparent to those skilled in the art that the present invention is not limited to the details of the exemplary embodiments described above, and that the invention can be implemented in other specific forms without departing from its spirit or essential characteristics. Therefore, the embodiments should be considered in all respects as exemplary and non-limiting, and the scope of the invention is defined by the appended claims rather than the foregoing description. Thus, all variations falling within the meaning and scope of the same elements of the claims are intended to be included within the present invention. No reference numerals in the claims should be construed as limiting the scope of the claims.

Claims

1. A method for disinfecting a trash can with disinfection and sterilization functions, characterized in that, The disinfection method includes the following steps: First, bacteria and viruses inside the trash can are monitored in real time using sensors located inside the can. The light scattering signal data acquired by the sensors is processed using the following algorithm: the light scattering signal intensity is defined as... At different times The obtained light scattering signal intensities are respectively Define the rate of change of the signal. for: ; Meanwhile, based on the signal strength of different microfluidic channels ,in Calculate the comprehensive bacterial and viral index based on the number of channels. ,in For channel The initial light scattering signal intensity; when Exceeding the preset rate of change threshold and Exceeding the preset bacterial and viral index threshold When the concentration of bacteria and viruses inside the trash can reaches a level that requires disinfection; At this time, the intelligent control module sends a start signal to the ultraviolet disinfection lamp located on the cylinder cover, and the ultraviolet disinfection lamp operates at a fixed power. Continuous irradiation for a fixed time Disinfection is carried out, including power The method for determining the rated power is as follows: determine the rated power based on the model and specifications of the ultraviolet disinfection lamp. The power coefficient for effective disinfection in the internal environment of a trash can was determined through experiments. ,in ,but fixed time The method for determining this is based on the volume of the trash can. The disinfection time per unit volume was determined based on disinfection experimental data for common bacteria and viruses. ,but .

2. The disinfection method according to claim 1, characterized in that, In determining the power factor When doing so, consider the ambient temperature inside the trash can. and humidity The influence of temperature is calculated as follows: Define the temperature influence coefficient. Humidity Influence Coefficient ,when At 0-10 degrees Celsius ,when At 10-20 degrees Celsius ,when At 20-30 degrees Celsius ,when When the temperature is above 30 degrees Celsius, ,when At 30%-50% ,when At 50%-70%, ;when At 70%-90%, ,when When it is greater than 90%, Then the power coefficient The calculation formula is: ,in This is the initial power coefficient.

3. The disinfection method according to claim 1, characterized in that, In calculating the disinfection time per unit volume When considering the impact of different types of trash in the bins, the trash is categorized into easily disinfectable types. This includes paper, plastic, and other types of waste that are difficult to disinfect. This includes food scraps and medical waste, defining the proportion of easily disinfectable waste in trash cans as follows: The proportion of difficult-to-disinfect waste is ,in According to experimental measurements, the disinfection time per unit volume of easily disinfectable waste was determined. Disinfection time per unit volume of difficult-to-disinfect waste ,but .

4. The disinfection method according to claim 1, characterized in that, After the disinfection process, the inside of the trash can is tested again using bacterial and viral monitoring sensors. Still exceeds the rate of change threshold 50% or Still exceeds the bacterial and viral index threshold If 30% of the trash can is not cleaned, the above disinfection process will be repeated, up to a maximum of 3 times. If the disinfection requirements are still not met, an alarm message will be displayed on the display module to prompt the user to check the trash can and perform manual cleaning.

5. The disinfection method according to claim 1, characterized in that, Based on the cumulative usage time of the ultraviolet disinfection lamp Perform regular calibration, calibration cycle The calculation formula is: ,in A preset total calibration time threshold is set. When the calibration cycle is reached, a disinfection experiment is conducted in the trash can using standard bacterial samples. The power coefficient is adjusted based on the disinfection effect. .

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