Odor removal control method and system for garbage compartment, garbage compartment, and storage medium

Abstract

This application relates to the field of intelligent environmental protection equipment technology, and provides a method, system, garbage container, and storage medium for odor control in garbage containers. The method includes: monitoring the opening and closing status of the garbage container's dispensing port through a dispensing sensing unit, and confirming whether a dispensing event has occurred based on the opening and closing status; when a dispensing event is confirmed, acquiring first operating parameters of the exhaust unit, and controlling the exhaust unit to exhaust air based on the first operating parameters to form a negative pressure barrier; acquiring second operating parameters of the spray unit, wherein the second operating parameters include a delay execution duration; and controlling the spray unit to spray air to remove odors based on the first and second operating parameters. This application achieves time-series linkage control based on dispensing events, enabling immediate response to high-concentration odors generated at the moment of dispensing, avoiding ineffective waste of the odor removal medium, significantly improving odor removal efficiency, and reducing system energy consumption.

Description

Technical Field

[0001] This application relates to the field of intelligent environmental protection equipment technology, specifically to a method, system, garbage compartment and storage medium for odor control in garbage compartments. Background Technology

[0002] With the acceleration of urbanization, intelligent and environmentally friendly trash cans, as an important component of urban public health facilities, are receiving increasing attention for their intelligent control level. Existing intelligent trash cans are typically equipped with odor removal systems to improve air quality inside and around the can. Currently, odor control in trash cans mostly relies on timed spraying of odor-removing agents or continuous ventilation. However, timed spraying cannot immediately address the odors generated when trash is disposed of, leading to odor diffusion; while continuous ventilation provides constant air exchange, it consumes a great deal of energy and wastes resources when no one is using the trash can. Furthermore, existing intelligent trash cans lack effective odor control, and the exhaust air can also negatively impact the surrounding environment. Summary of the Invention

[0003] To address the problems of untimely odor removal, high energy consumption, and insufficient safety in existing technologies, this application proposes an odor removal control method, system, garbage container, and storage medium for garbage containers. This method achieves time-series linkage control based on disposal events and safety redundancy control based on gas concentration, effectively improving odor removal efficiency and ensuring the safety of enclosed spaces. At the same time, it effectively prevents odors from overflowing into the user's breathing area during the disposal process, thus enhancing the disposal experience.

[0004] To achieve the above objectives, this application adopts the following technical solution: A method for controlling odor removal in a garbage bin includes: monitoring the opening and closing state of the garbage bin's disposal opening via a disposal sensing unit, and confirming whether a disposal event has occurred based on the opening and closing state; when the disposal event is confirmed, acquiring first operating parameters of an exhaust unit, and controlling the exhaust unit to exhaust air based on the first operating parameters to form a negative pressure airflow barrier at the disposal opening; acquiring second operating parameters of a spray unit, wherein the second operating parameters include a delay execution duration; and controlling the spray unit to spray to remove odors based on the first operating parameters and the second operating parameters.

[0005] Optionally, when the delivery event is confirmed, the first operating parameters of the exhaust unit are obtained, and based on the first operating parameters, the exhaust unit is controlled to exhaust air to form a negative pressure airflow barrier at the delivery port. This includes: when the delivery event is confirmed, determining the first operating parameters according to the type of waste corresponding to the waste container, the first operating parameters including the exhaust level and the exhaust duration; controlling the exhaust unit to operate at the exhaust level to form a negative pressure airflow barrier at the delivery port, and stopping the exhaust when the exhaust duration is reached.

[0006] Optionally, determining the first operating parameters based on the type of waste corresponding to the waste container includes: when the waste type is kitchen waste, determining the exhaust fan speed to be high speed and the exhaust duration to be a first preset exhaust duration; when the waste type is other waste, determining the exhaust fan speed to be low speed and the exhaust duration to be a second preset exhaust duration, wherein the second preset exhaust duration is less than the first preset exhaust duration.

[0007] Optionally, the acquisition of the second operating parameters of the spray unit, wherein the second operating parameters include a delayed execution duration, includes: acquiring odor information collected by the gas monitoring unit inside the garbage compartment, and determining the delayed execution duration of the spray unit based on the odor information.

[0008] Optionally, obtaining the second operating parameter includes the spray duration, and controlling the spray unit to spray to remove odors based on the first operating parameter and the second operating parameter includes: confirming whether the exhaust unit has completed exhaust based on the first operating parameter; if exhaust is completed, then controlling the spray unit to spray to remove odors according to the spray duration after the delay execution time.

[0009] Optionally, the method further includes: acquiring odor information collected by the gas monitoring unit inside the garbage compartment, the odor information including the concentration value of a hazardous gas; when the concentration value of the hazardous gas reaches a first preset safety threshold, controlling the exhaust unit to exhaust air until the concentration value of the hazardous gas falls back to a preset safety range; when the concentration value of the hazardous gas reaches a second preset safety threshold, outputting an alarm signal, the second preset safety threshold being higher than the first preset safety threshold.

[0010] Optionally, the method further includes: monitoring odor information inside the garbage compartment through a gas monitoring unit, the odor information including odor change trends; and controlling the operation of an odor removal device based on the odor change trends, the odor removal device including a spray unit.

[0011] Furthermore, this application also provides a garbage bin odor removal control system, comprising: a disposal sensing device for monitoring the opening and closing state of the garbage bin's disposal opening via a disposal sensing unit, and confirming whether a disposal event has occurred based on the opening and closing state; an exhaust control device for acquiring first operating parameters of the exhaust unit when the disposal event is confirmed, and controlling the exhaust unit to exhaust air based on the first operating parameters to form a negative pressure airflow barrier at the disposal opening; and an odor removal device for acquiring second operating parameters of a spray unit, wherein the second operating parameters include a delay execution duration; the odor removal device is further configured to control the spray unit to spray odor removal based on the first operating parameters and the second operating parameters.

[0012] In addition, this application also provides a garbage container, including: a processor, a memory, a communication interface and a communication bus, wherein the processor, the memory and the communication interface communicate with each other through the communication bus; the memory is used to store at least one executable instruction, wherein the executable instruction causes the processor to perform the operation of the garbage container odor control method described above.

[0013] In addition, this application also provides a computer-readable storage medium storing at least one executable instruction, which, when executed on a garbage bin, causes the garbage bin to perform the operation of the garbage bin deodorization control method described in any of the above claims.

[0014] The proposed odor control method for garbage bins involves monitoring the opening and closing status of the garbage bin's disposal port using a disposal sensing unit. Based on this status, it confirms whether a disposal event has occurred. When a disposal event is confirmed, it acquires first operating parameters of the exhaust unit and controls the exhaust unit to ventilate, creating a negative pressure airflow barrier at the disposal port. It also acquires second operating parameters of the spray unit, including a delay execution time. Based on the first and second operating parameters, it controls the spray unit to spray and deodorize. This method activates exhaust immediately upon detecting a disposal event, creating a negative pressure airflow from the outside in at the disposal port, thus constructing an invisible "air curtain barrier." This fundamentally changes the passive nature of traditional odor removal methods, confining odorous gases within the bin before they diffuse towards the user, effectively solving the unpleasant experience caused by odors hitting the user at the moment of disposal and achieving proactive isolation at the source. Combined with subsequent delayed spray treatment, the intercepted odor gases are thoroughly removed inside the container, ultimately achieving efficient, environmentally friendly, and user-friendly odor control in garbage containers. Attached Figure Description

[0015] Figure 1This is a schematic diagram of the system architecture of the hardware operating environment involved in the embodiments of this application; Figure 2 This is a flowchart illustrating the first embodiment of the odor control method for garbage bins in this application.

[0016] The realization of the purpose, functional features and advantages of this application will be further explained in conjunction with the embodiments and with reference to the accompanying drawings. Detailed Implementation

[0017] It should be understood that the specific embodiments described herein are merely illustrative of this application and are not intended to limit this application.

[0018] like Figure 1 As shown, Figure 1 This is a schematic diagram of the system architecture of the hardware operating environment involved in the embodiments of this application.

[0019] like Figure 1 As shown, the system may include: a processor 1001, such as a CPU; a network interface 1004; a user interface 1003; a memory 1005; and a communication bus 1002. The communication bus 1002 is used to enable communication between these components. The user interface 1003 may include a display screen or an input unit such as a keyboard; optionally, the user interface 1003 may also include a standard wired interface or a wireless interface. The network interface 1004 may optionally include a standard wired interface or a wireless interface (such as a Wi-Fi interface). The memory 1005 may be high-speed RAM or non-volatile memory, such as a disk drive. Optionally, the memory 1005 may also be a storage device independent of the aforementioned processor 1001.

[0020] Those skilled in the art will understand that Figure 1 The system structure shown does not constitute a limitation on the system and may include more or fewer components than shown, or combine certain components, or have different component arrangements.

[0021] like Figure 1 As shown, the memory 1005, which serves as a computer storage medium, may include an operating system, a network communication module, a user interface module, and a garbage bin odor removal control program.

[0022] The operating system is a program that manages and controls the garbage compartment odor removal control system and software resources, and supports the operation of the network communication module, user interface module, garbage compartment odor removal control program and other programs or software; the network communication module is used to manage and control the network interface 1002; the user interface module is used to manage and control the user interface 1003.

[0023] exist Figure 1 In the system shown, the system calls the garbage compartment odor removal control program stored in the memory 1005 through the processor 1001, and executes the operations in the various embodiments of the garbage compartment odor removal control method described below.

[0024] Based on the above hardware structure, an embodiment of the garbage compartment odor control method of this application is proposed.

[0025] Example 1: This embodiment provides a method for controlling odors in garbage bins. This method aims to address the core problems of existing garbage bin odor control solutions, such as the inability to immediately handle odor overflow during disposal, high energy consumption, and lack of safety redundancy mechanisms, which arise from the use of timed spraying or constantly open ventilation modes. This embodiment uses a smart, environmentally friendly garbage bin used in a community or public place as an example scenario. However, it should be understood that the method of this application is also applicable to other types of enclosed or semi-enclosed garbage collection containers, such as kitchen waste storage cabinets, medical waste transfer boxes, and industrial waste collection stations, where odor control and safety assurance are required.

[0026] It should be noted that before the method in this embodiment is executed, the installation and communication deployment of each functional unit have been completed inside the garbage compartment. Specifically, the delivery sensing unit is installed at the delivery port of the garbage compartment to sense changes in the opening and closing status of the delivery port; the exhaust unit is installed in the exhaust duct or on the wall of the garbage compartment to exhaust the gas inside the compartment to the outside; the spray unit is installed inside the garbage compartment, with its spray outlet facing the garbage storage area inside the compartment, to release an odor-removing medium into the compartment; all of the above units establish a communication connection with the main controller (i.e., the processor), and the main controller has preset timing control logic and safety monitoring logic. The specific type, installation location, and specifications of the above units can be conventionally selected by those skilled in the art based on the actual structure of the garbage compartment and the application scenario, and this embodiment does not impose specific limitations on this.

[0027] Specifically, such as Figure 2 As shown: Step S10: Monitor the opening and closing status of the garbage bin's delivery port through the delivery sensing unit, and confirm whether a delivery event has occurred based on the opening and closing status.

[0028] Specifically, the delivery sensing unit refers to a sensing device installed on the garbage bin to detect whether the delivery opening is open or closed. The delivery sensing unit can take various forms, such as contact limit switches, non-contact photoelectric sensors, magnetic reed switches, microswitches, or angle sensors. Those skilled in the art can select the appropriate sensing form based on the mechanical structure of the delivery opening and environmental adaptability requirements.

[0029] The opening / closing status of the delivery port refers to whether the delivery port is currently in the open or closed position. The delivery sensing unit continuously collects the physical position signal of the delivery port and converts the signal into opening / closing status data, which is then sent to the main controller.

[0030] The aforementioned disposal event refers to a user depositing garbage into the garbage bin through the disposal opening. In this embodiment, the main controller confirms whether a disposal event has occurred by monitoring the opening and closing status of the disposal opening. The logic for confirming a disposal event can be implemented in several ways. In one feasible implementation, the main controller determines that a disposal event has occurred when the disposal sensor detects that the disposal opening has switched from a closed state to an open state. In another feasible implementation, the disposal sensor detects that a disposal event has occurred when it detects a user approaching. Regardless of the logic used, after confirming the disposal event, the main controller triggers the subsequent ventilation and odor removal control processes.

[0031] Through step S10, the system can detect the occurrence of the event the moment the user throws away the garbage, thereby accurately aligning the start time of the odor removal operation with the time when the odor is generated, avoiding the energy waste caused by the ineffective operation of the traditional timed trigger mode during non-garbage disposal periods.

[0032] Step S20: When the delivery event is confirmed, the first operating parameters of the exhaust unit are obtained, and based on the first operating parameters, the exhaust unit is controlled to exhaust air to form a negative pressure airflow barrier at the delivery port.

[0033] Specifically, the exhaust unit refers to an actuator installed on the garbage container that can actively exhaust the air inside the container to the outside. Exhaust units can take various forms, such as axial flow fans, centrifugal fans, and negative pressure exhaust fans. Those skilled in the art can select or combine these forms according to the volume of the garbage container and the required exhaust flow rate.

[0034] The first operating parameter is a set of control parameters used to define the operating mode of the exhaust unit's current exhaust action. The specific parameter items included in the first operating parameter can be set according to the functional characteristics of the exhaust unit. Typically, the first operating parameter may include at least one or more of the following: parameters related to exhaust intensity, parameters related to exhaust duration, and parameters related to exhaust start timing. The value of the first operating parameter can be a fixed value preset in the main controller, or an adaptive value dynamically determined based on the specific characteristics of the delivery event, or an adaptive value dynamically determined based on the specific characteristics of the garbage bin. In this embodiment, the first operating parameter is obtained by the main controller after the delivery event is confirmed. The method of acquisition can be reading a preset parameter table from memory, or it can be calculated in real time based on the current operating conditions; this embodiment does not specifically limit this.

[0035] After acquiring the first operating parameters, the main controller controls the exhaust unit to ventilate based on these parameters. Unlike conventional exhaust methods, the core purpose of this step is not simply to remove existing odors, but to immediately activate the exhaust system the instant the delivery event is confirmed and the delivery port opens. The exhaust unit actively creates a negative pressure airflow barrier in the delivery port area, drawing gas from inside the compartment outwards. This inward-flowing airflow acts like an invisible "air curtain," effectively preventing odors from spreading to the user during the brief interval before the delivery port fully closes, thus addressing the core user experience pain point of "users being able to smell odors." The odors trapped inside the compartment by the negative pressure airflow are then deodorized by the spray unit (activated after the exhaust unit stops ventilating) before being efficiently discharged from the compartment by the exhaust unit, achieving both source interception and immediate odor removal. The value of the first operating parameter can be preset to achieve a balance between exhaust energy consumption and the effectiveness of the negative pressure barrier. The specific setting method will be described in subsequent embodiments.

[0036] Through step S20, the odor gas emitted by the opening of the delivery port cannot escape to the user side under the constraint of the negative pressure barrier, and is quickly drawn out of the compartment under the forced ventilation of the exhaust unit, thereby achieving immediate control at the source of the odor and preventing the odor from overflowing to the delivery port and affecting the user's breathing.

[0037] It should be noted that the garbage compartment is also equipped with odor removal units such as a spray unit, ultraviolet lamps, and activated carbon adsorption units. These units continuously remove odors when no garbage disposal occurs, suppressing or eliminating unpleasant smells within the compartment. This ensures that the gases discharged into the environment by the exhaust unit meet environmental protection requirements. In one embodiment, an activated carbon filter can be installed at the exhaust vent, allowing the discharged gas to pass through the filter before being released into the environment.

[0038] Step S30: Obtain the second operating parameters of the spray unit, wherein the second operating parameters include the delay execution duration.

[0039] Specifically, the spray unit refers to an actuator installed inside the garbage compartment that can spray liquid odor-removing media in atomized form onto the garbage storage area. The spray unit can take various forms, such as an ultrasonic atomizer with a storage tank, a high-pressure micro-mist nozzle with a pump, or a gas-liquid two-fluid atomizing nozzle. Those skilled in the art can select the appropriate type based on the physicochemical properties of the odor-removing media and the required spray coverage. The odor-removing media can be plant extracts, microbial odor-removing agents, chemical neutralizing agents, etc. This embodiment does not limit the specific composition of the odor-removing media.

[0040] The second operating parameter is a set of control parameters used to define the operation mode of the spray unit's odor removal action. The second operating parameter includes a delay execution time. This delay execution time refers to the time after the exhaust unit starts or stops ventilating before the main controller starts the spray unit. The purpose of setting the delay execution time is to allow the exhaust unit sufficient time to expel most of the odor-causing gas generated at the moment of delivery under negative pressure constraint, and then the spray unit releases the atomized odor-removing medium to treat the remaining odor. If the spray and exhaust start simultaneously, some of the atomized odor-removing medium may be expelled from the chamber before it has fully interacted with the gas inside, resulting in waste of the odor-removing medium and a decrease in the odor-removing effect. Simultaneously, delaying the start of the spray after the exhaust stops allows the airflow inside the chamber to return to relative stillness, enabling the atomized droplets to disperse, remain, and interact with odor molecules more fully, improving the deep purification efficiency.

[0041] Step S40: Based on the first operating parameters and the second operating parameters, control the spray unit to spray and remove odors.

[0042] In this embodiment, the main controller acquires a second operating parameter and, based on the first and second operating parameters, controls the spray unit to spray and remove odors. The first and second operating parameters mean that the control of the spray unit needs to simultaneously reference information related to the exhaust timing in the first operating parameters of the exhaust unit (e.g., whether exhaust is complete) and the spray unit's own second operating parameters (especially the delay execution duration). Specifically, the main controller confirms whether the exhaust unit has completed the exhaust action based on the first operating parameters. If exhaust is confirmed to be complete, the main controller starts a delay timer, and after waiting for the delay execution duration to be reached, sends a drive signal to the spray unit to control it to perform the spraying action. Parameters such as the duration of the spraying action, the spray volume, or the atomization intensity can be defined by other parameters in the second operating parameters.

[0043] Through step S40, the system, based on the negative pressure exhaust to intercept and remove odors, adds a deep odor removal spray treatment step. By arranging the sequence of "first exhausting air to establish a negative pressure barrier and remove odors, then delaying and waiting, and finally spraying for deep purification", the system achieves a three-stage integrated odor control of "active isolation - rapid extraction - deep purification", maximizing the odor removal effect and the user's seamless experience, while avoiding the ineffective consumption of odor removal media.

[0044] This embodiment changes the odor removal operation from the traditional timed trigger or normally open mode to an event-driven negative pressure isolation mode. This allows the exhaust fan to immediately create an inward negative pressure airflow when a delivery occurs, physically blocking the odor's diffusion path to the user and solving the most prominent user pain point in existing technologies: "an overwhelming odor upon delivery." During periods when no one is delivering, both the exhaust and spray units remain in standby mode, effectively avoiding energy waste caused by continuous operation in the traditional normally open exhaust mode. Furthermore, in cases of prolonged periods without delivery and with garbage present, the units will periodically activate to continuously and flexibly suppress or eliminate odors.

[0045] Meanwhile, this embodiment designs exhaust ventilation and spray deodorization as a time-linked, coordinated operation—first, exhaust ventilation creates negative pressure to trap odors and extract them from the chamber; then, after a delay and waiting for the airflow inside the chamber to stabilize, spraying is performed to deeply neutralize any remaining odors—achieving an organic coordination of two-stage deodorization actions. Compared to simple exhaust ventilation or simple spraying alone, this embodiment's time-linked scheme has significant advantages in both the thoroughness of odor removal and the utilization rate of the deodorizing medium.

[0046] Example 2: This embodiment, based on embodiment 1, further defines the specific content of the first operating parameter in step S20 and the method for determining the first operating parameter. Specifically, this embodiment involves setting the exhaust level and duration according to the different types of waste corresponding to the garbage bin, in order to achieve precise exhaust control that matches the odor release characteristics of different types of waste, while also ensuring the internal safety of the garbage bin in a long-term closed state.

[0047] In actual garbage bin usage scenarios, users dispose of a variety of types of waste, and the odor concentration and composition vary significantly between different types of waste within the bin. For example, kitchen waste typically has a high water content and is rich in organic matter. After disposal, as the waste ferments, it releases a high concentration of strong odors, posing a significant risk of odor leakage the moment the disposal opening is opened. Therefore, a stronger negative pressure airflow is required to ensure effective isolation. Conversely, other types of waste, such as recyclable waste (e.g., paper, plastic bottles, glass containers), are usually drier and have less residual organic matter, releasing relatively mild odors upon disposal, thus requiring a lower level of negative pressure isolation. Furthermore, garbage bins may experience prolonged periods without disposal and delayed collection. In such cases, the slow fermentation of waste within the bin can produce flammable or toxic gases, posing safety hazards. Therefore, setting exhaust parameters according to the differences in waste type can avoid energy waste caused by using the same exhaust intensity for all disposal events, while ensuring the negative pressure isolation effect at the disposal port. At the same time, the reasonable scheduling of the exhaust system can also take into account the gas safety control of the confined space.

[0048] In this embodiment, the waste type information can be obtained by the system in various ways. In one feasible implementation, the waste bin's disposal area is equipped with one or more operating devices (e.g., sorting and disposal buttons, touchscreen options, or inductive tag readers) corresponding to different waste categories. Before or simultaneously with waste disposal, the user selects or indicates the waste category to be disposed of through this operating device, and the main controller records the waste type corresponding to this disposal event. In another feasible implementation, an image recognition unit or a spectral sensing unit can be deployed inside the waste bin to automatically classify and identify the disposed waste. In yet another feasible implementation, if the waste bin itself is a multi-category collection container, and each disposal port is physically separated according to waste category, the main controller can directly determine the waste type based on the identity of the triggered disposal port. Those skilled in the art can choose appropriate waste type acquisition methods according to the specific waste bin product form and functional requirements; this embodiment does not specifically limit this.

[0049] Based on the description in Example 1, in this example, when the delivery event is confirmed to have occurred, the first operating parameters of the exhaust unit are obtained, and based on the first operating parameters, the exhaust unit is controlled to perform exhaust to form a negative pressure airflow barrier at the delivery port. This specifically includes the following: When the delivery event is confirmed, the first operating parameters are determined based on the type of waste corresponding to the waste container. The first operating parameters include the exhaust fan speed and the exhaust duration.

[0050] The exhaust level refers to the operating intensity level of the exhaust unit during this exhaust operation. In this embodiment, the exhaust level setting not only serves the negative pressure isolation requirement at the moment of disposal but also undertakes the internal gas safety control function under the long-term closed state of the garbage compartment. The exhaust level can be set in several ways. In one implementation, the exhaust level can be set to two levels: high speed and low speed. The high speed level is mainly used to quickly establish a strong negative pressure airflow barrier when the disposal port is opened, effectively suppressing the escape of odors from the compartment; its setting prioritizes negative pressure isolation. The low speed level is used to maintain negative pressure during the disposal of low-odor-risk garbage and for periodic safe ventilation during the long-term closed period of the garbage compartment, to prevent the accumulation of combustible or toxic gases due to garbage fermentation; its setting considers a balance between continuous ventilation and energy saving. In another implementation, the exhaust level can also be set to three levels: high, medium, and low, or to a continuously adjustable stepless speed regulation mode. Those skilled in the art can set an appropriate number of exhaust baffles and the corresponding fan speed or power level for each baffle according to the type of fan used in the exhaust unit (e.g., single-speed AC fan, multi-tap speed-regulating fan, PWM speed-regulating DC fan, etc.) and the actual exhaust flow requirements of the garbage compartment.

[0051] The exhaust duration refers to the continuous operating time of the exhaust unit from startup to automatic shutdown during this exhaust operation. The exhaust duration setting varies depending on the application scenario. In exhaust scenarios triggered by a delivery event, the exhaust duration is set based on the premise that within this duration, the exhaust unit operates at the corresponding exhaust setting, maintaining a sufficiently strong negative pressure airflow barrier in the delivery port area to effectively suppress the escape of high-concentration odor gases released at the moment of delivery of this type of waste. It should be noted that the core task of the exhaust unit in this system is to form a negative pressure barrier and prevent the gas inside the compartment from overflowing. The gas discharged by the exhaust unit is not directly released into the external environment, but rather serves as part of the closed-loop odor control system within the compartment. The gas is drawn from inside the compartment and introduced into the exhaust duct. The deep purification of the odor gas inside the compartment is completed collaboratively by the subsequent spray unit and other odor removal units within the compartment. In another embodiment, the garbage compartment is equipped with odor removal units such as a spray unit, ultraviolet lamps, and activated carbon adsorption units. Even when there are no garbage disposal events for an extended period, odors in the garbage compartment are periodically suppressed or eliminated, meaning the gas inside the garbage compartment meets environmental emission requirements. At this point, the odor can be directly extracted from the garbage compartment by the exhaust unit. The specific exhaust duration can be preset by the system or configured on-site by the system administrator based on the actual volume of the garbage compartment and the throughput parameters of the exhaust unit. In a safe exhaust scenario, the exhaust duration is set based on the fact that within this duration, the air exchange volume generated by the exhaust unit operating at low speed can dilute or replace the concentration of potentially accumulated harmful gases in the compartment to below a preset safe level. In another embodiment, the exhaust duration can also be the time from when the disposal opening is open to when it is closed; or it can be the time from when the disposal opening is open to when it is closed, plus a preset safety time, such as 3 seconds after the disposal opening is closed, to ensure that odors are not carried out by the closing action of the disposal opening.

[0052] Based on the above, this embodiment further provides a specific rule for setting the exhaust speed and exhaust duration according to the type of waste: when the waste type is kitchen waste, the exhaust speed is determined to be high speed and the exhaust duration is a first preset exhaust duration; when the waste type is other waste, the exhaust speed is determined to be low speed and the exhaust duration is a second preset exhaust duration, wherein the second preset exhaust duration is less than the first preset exhaust duration.

[0053] Specifically, food waste is the type of waste with the most concentrated odor release. After being disposed of, the concentration of odorous gases released in the waste bin is high and diffuses rapidly. When the disposal port is opened, the odor easily rushes outward due to the thermal pressure difference. Therefore, a stronger and more stable negative pressure airflow barrier needs to be quickly established with a high exhaust intensity to create a sufficiently fast inward airflow in the disposal port area to counteract the outward diffusion of odors. Thus, when the main controller confirms that the waste type corresponding to this disposal event is food waste, it sets the exhaust speed to high speed (e.g., the exhaust unit operates at full speed or near full speed) and sets the exhaust duration to the first preset exhaust duration. The specific value of the first preset exhaust duration can be calculated based on the volume of the waste bin and the rated throughput of the exhaust unit, with the setting benchmark being to maintain effective negative pressure throughout the typical time window of the disposal behavior (including the brief intervals after the disposal port opens and closes). Simultaneously, it also aims to guide the high-concentration odor gas trapped in the bin to the exhaust channel, creating conditions for subsequent deep spray purification.

[0054] Other waste, such as recyclable waste, is usually drier and has less organic residue. After disposal, the odor concentration released in the waste bin is much lower than that of food waste, and the driving force for odor diffusion is weaker. If high-speed ventilation is used for an extended period, it will result in unnecessary energy waste. Therefore, when the main controller confirms that the waste type corresponding to this disposal event is other than food waste, it sets the ventilation speed to low (e.g., the ventilation unit operates at half speed or reduced power) and sets the ventilation duration to the second preset ventilation duration. The negative pressure airflow barrier formed during low-speed operation is sufficient to cope with the instantaneous odor overflow of this type of waste, and the second preset ventilation duration is shorter than the first preset ventilation duration.

[0055] It should be noted that the above classification of kitchen waste and other waste is merely illustrative. In practical applications, waste types can be further subdivided into more categories, such as hazardous waste, recyclable waste, and landscaping waste, with each category having its own exhaust fan speed and duration matching its odor release characteristics. Those skilled in the art can expand and adjust the above rules based on local waste classification standards and practical operational experience.

[0056] After determining the first operating parameters, the main controller controls the exhaust unit to operate at the specified exhaust level to create a negative pressure airflow barrier at the delivery port, and stops exhausting when the specified exhaust duration is reached. Specifically, the main controller sends a drive signal (e.g., a level switching signal or PWM signal) corresponding to the determined exhaust level to the exhaust unit. The exhaust unit starts and runs continuously at the target level. During this operation, the exhaust unit continuously draws air from inside the compartment to the outside, maintaining a negative pressure airflow from the outside to the inside in the delivery port area, forming a dynamic "air curtain" to isolate odors and ensure that odorous gases inside the compartment do not escape from the delivery port to the user's breathing area. The main controller starts an exhaust timer internally. When the timer reaches the determined exhaust duration, the main controller sends a stop signal or cancels the drive signal to the exhaust unit, and the exhaust unit stops operating. At this point, the delivery-triggered exhaust phase corresponding to this delivery event is completed. After exhausting stops, the deep odor purification in the compartment is handled by the subsequent spray unit. For safety ventilation needs during non-delivery periods, the gas monitoring unit continuously monitors the gas concentration inside the compartment, and triggers the ventilation unit to operate at an appropriate level when the concentration reaches a preset safety threshold.

[0057] This embodiment introduces a differentiated exhaust parameter setting mechanism based on waste type into the event-driven exhaust framework of Embodiment 1, enabling intelligent matching of the intensity and duration of exhaust operations with the odor release characteristics of the disposed waste. For high-odor types such as kitchen waste, the system automatically uses high-speed, long-duration exhaust to establish a stronger negative pressure isolation barrier, ensuring that high-concentration odors are effectively intercepted in the disposal area and cannot overflow into the user space. For low-odor types such as recyclable waste, the system automatically uses low-speed, short-duration exhaust, minimizing energy consumption while maintaining the necessary negative pressure isolation effect. Simultaneously, the exhaust system design in this embodiment follows the principle of "odor treatment within the chamber, negative pressure source isolation." The core purpose of exhaust is to form a negative pressure barrier and ensure the safety of internal gases. The exhausted gas serves as a link in the closed-loop treatment process within the chamber, and the deep purification of odor gases is completed by internal devices such as spray units.

[0058] Example 3: This embodiment, based on Embodiment 1, further defines the method for obtaining the second operating parameter in step S40 and the specific triggering logic for controlling the spray unit to remove odors based on the first and second operating parameters. Specifically, this embodiment involves differentiating the spray duration and frequency of the spray unit according to multi-dimensional information such as waste type, delivery frequency, delivery interval, and gas concentration inside the waste bin, to achieve precise spray odor removal control that matches the actual operating conditions of the waste bin.

[0059] In the scheme described in Example 1, the spray unit is not started simultaneously with the exhaust unit, but rather after a delay following the exhaust unit's shutdown. This delay significantly impacts the odor removal effect: if the delay is too short, the exhaust unit is still running or has just stopped, leaving the compartment in a state of airflow disturbance, and some of the atomized odor-removing medium may be unevenly distributed within the compartment or prematurely discharged with the residual airflow; if the delay is too long, residual odorous gases may have already adhered to the inner wall of the compartment or the surface of the waste before the spray unit intervenes, weakening the immediacy of deep purification. However, besides the delay, the spray duration and frequency of the spray unit during actual operation are also key parameters determining the odor removal effect and the utilization rate of the odor-removing medium. Optimizing these parameters requires comprehensive consideration of factors such as waste type, delivery frequency, delivery interval, and gas concentration within the compartment.

[0060] In actual garbage bin usage scenarios, different types of garbage not only determine the peak odor concentration of the bin but also affect the continuous release characteristics of the odor. For example, after food waste is disposed of, even if the exhaust fan has trapped and discharged the odorous gases, the organic matter attached to its surface will continue to release odor molecules for a period of time afterward; while the continuous odor release of recyclable waste is negligible. Furthermore, the frequency of garbage bin usage and the interval between disposals are also important variables: during peak disposal periods, the interval between two disposal events is very short, and the previous spraying for odor removal has not yet fully taken effect before the next disposal occurs, causing the odor to gradually accumulate inside the bin; while during off-peak disposal periods, the interval between two disposals is longer, giving the system ample time to complete deep purification. Therefore, relying solely on fixed spray duration and single-spray strategies cannot adapt to the complex and ever-changing actual operating conditions. This embodiment introduces a differentiated spraying scheme based on multi-dimensional information to achieve precise odor control with a "one-disposal-one-policy" approach. In this embodiment, the acquisition of the second operating parameters of the spray unit includes a delayed execution duration, specifically including: acquiring odor information collected by the gas monitoring unit inside the garbage compartment, and determining the delayed execution duration of the spray unit based on the odor information.

[0061] Of course, in another embodiment, the second operating parameter further includes spray duration and spray frequency.

[0062] The above parameters are determined by the main controller through dynamic decision-making based on a combination of one or more of the following information: the type of waste corresponding to the waste bin, the frequency of disposal within the preset time window, the disposal interval between two adjacent disposal events, and the odor information inside the bin collected by the gas monitoring unit.

[0063] Specifically, the gas monitoring unit refers to a sensing device installed inside the garbage compartment to detect odor information such as gas composition or odor concentration. Gas monitoring units can take various forms, such as metal oxide semiconductor gas sensors, electrochemical gas sensors, photoionization detectors, or electronic nose modules based on sensor arrays. The gas monitoring unit can detect specific target gases or the combined response values ​​of multiple gases. In a typical implementation, the gas monitoring unit can be installed in the middle or upper-middle area of ​​the inner wall of the garbage compartment to effectively collect overall odor information of the air inside the compartment, avoiding reading distortion caused by momentary interference from localized high-concentration gas masses due to proximity to the garbage accumulation area.

[0064] The odor information refers to data collected by the gas monitoring unit to characterize the intensity of odors within the garbage compartment. Odor information can be quantified in various ways. In one implementation, the odor information is an electrical signal value or a digital quantity converted from analog to digital output by the gas monitoring unit, corresponding to the concentration of a specific odor marker. The odor marker can be selected from one or more of ammonia, hydrogen sulfide, methanethiol, and volatile organic compounds. In another implementation, the odor information is a comprehensive odor index output by the gas monitoring unit after weighted fusion calculation of the response values ​​of multiple target gases. In yet another implementation, the odor information can also use the raw voltage response value of the gas monitoring unit directly as a reference for odor intensity. Regardless of the quantification method used, the odor information reflects the relative concentration level of the current odor gases within the garbage compartment.

[0065] Based on the information obtained above, the main controller makes a comprehensive decision on the specific values ​​of each parameter in the second operating parameter. The determination logic of each parameter is described below.

[0066] Regarding the determination of the delay execution duration, after the main controller acquires the odor information collected by the gas monitoring unit, it determines the delay execution duration based on this odor information. The specific determination rule can be executed according to a preset mapping relationship. In one implementation, when the odor information indicates a relatively high odor concentration in the chamber, the main controller determines a relatively short delay execution duration (e.g., 5 to 10 seconds) to allow the spray unit to intervene quickly to complete deep odor removal and shorten the residence time of high-concentration odors in the chamber. When the odor information indicates a relatively low odor concentration in the chamber, the main controller determines a relatively long delay execution duration (e.g., 15 to 30 seconds). At this time, the risk of odor diffusion in the chamber is low, and the exhaust unit has already discharged most of the odor gas. The slightly longer delay allows the airflow in the chamber to fully settle before spraying, improving the residence time and efficiency of the atomized odor-removing medium in the chamber.

[0067] In a further optimized implementation, the main controller has a pre-built segmented mapping table between odor information and delayed execution time. For example, it can be divided into three intervals: when the odor information is in the high concentration interval, the delayed execution time is set to approximately 5 seconds; when the odor information is in the medium concentration interval, the delayed execution time is set to approximately 15 seconds; and when the odor information is in the low concentration interval, the delayed execution time is set to approximately 30 seconds. The threshold boundaries of each interval can be preset by the system before leaving the factory based on the typical odor conditions of the target application scenario of the garbage container, or they can be adjusted by maintenance personnel through the configuration interface according to the on-site conditions.

[0068] The spray duration is determined by the main controller based on the type of waste in the waste compartment and the odor information collected by the gas monitoring unit. Different types of waste exhibit significantly different characteristics in their sustained odor release after disposal. For waste types such as kitchen waste, which have high organic content and strong sustained odor release capabilities, a longer spray duration is required to ensure that the atomized odor-removing medium fully covers the waste surface, providing sustained neutralization of subsequently released odor molecules. For waste types such as recyclable waste, which have low sustained odor release, a shorter spray duration is sufficient to neutralize residual odors. Simultaneously, the odor information collected by the gas monitoring unit reflects the actual odor intensity in the compartment. When the odor concentration is high, the spray duration is appropriately extended to enhance the deep purification effect. In a typical implementation, the main controller has a pre-set two-dimensional mapping table between waste type, odor concentration range, and spray duration. For example, for kitchen waste, the spray duration is set to approximately 20 seconds when the odor concentration is high, approximately 15 seconds for medium concentration, and approximately 10 seconds for low concentration. For recyclable waste, the spray duration can be shortened to approximately 10 seconds, 8 seconds, and 5 seconds for each concentration range, respectively. Those skilled in the art can adjust the above durations based on the performance parameters of the actual odor removal medium and experience in application scenarios.

[0069] Regarding the determination of the spray frequency, this is an important supplementary feature that distinguishes this embodiment from the aforementioned embodiments. Traditional single-spray strategies may lead to odor accumulation during peak delivery periods due to insufficient spray purification. This embodiment introduces a dynamic adjustment mechanism for the spray frequency based on delivery frequency and delivery interval. Specifically, the main controller records the number of delivery events occurring within a preset time window (e.g., within the last 30 minutes) as the delivery frequency and calculates the delivery interval between two adjacent delivery events. When the delivery frequency is low and the delivery interval is long (e.g., the interval exceeds 10 minutes), it indicates that the garbage bin is in a low-usage period, and a single spray is sufficient to neutralize residual odors. In this case, the spray frequency is set to single spray (i.e., only one round of spraying is triggered for each delivery event). When the frequency of garbage collection is high and the interval between collections is short (e.g., between 3 and 10 minutes), it indicates that the garbage container is in a medium-frequency usage period. The purification effect of the previous spray may not have been fully realized, and a new round of odor has already been generated. At this time, the main controller can set multiple sprays in a single collection event (e.g., execute the first round of spray after exhaust, and automatically execute the supplementary spray after a few minutes), or in a series of collection events, appropriately increase the number of sprays for subsequent collection events to cope with the cumulative effect of odor. When the frequency of collection is extremely high and the interval between collections is extremely short (e.g., less than 3 minutes), it indicates that the garbage container is in a peak collection period, and odor continues to accumulate. At this time, the main controller can further increase the spray frequency, continuously executing multiple rounds of spray after each exhaust until the odor information fed back by the gas monitoring unit falls back to the preset safe range.

[0070] Furthermore, the spray frequency can be further integrated with real-time monitoring data from the gas monitoring unit for closed-loop feedback control. After one spray cycle or round of spraying is completed, the main controller continuously reads the odor information collected by the gas monitoring unit. If the odor information has not returned to the target purification level within a preset monitoring period (e.g., 30 seconds after the spray ends), it indicates that the amount of a single spray is insufficient to fully neutralize the current odor, and the main controller automatically adds a supplementary spray. This feedback-based spray frequency control ensures that the odor inside the compartment can be effectively controlled below the target level under any complex operating conditions.

[0071] Based on the above embodiments, this embodiment further limits the triggering timing of the spray deodorization. The step of controlling the spray unit to perform deodorization based on the first operating parameter and the second operating parameter specifically includes: based on the first operating parameter, confirming whether the exhaust unit has completed exhaust; if exhaust is complete, then after the delay execution time, controlling the spray unit to perform deodorization according to the spray duration.

[0072] Specifically, in step S20, the main controller has acquired the first operating parameters of the exhaust unit, which include the exhaust duration. Starting from the time the exhaust unit starts exhausting, the main controller continuously times the operating time of the exhaust unit. When the operating time reaches the exhaust duration specified in the first operating parameters, the main controller determines that the exhaust unit has completed exhausting. Alternatively, by monitoring the operating status of the exhaust unit, if the exhaust unit stops working, the main controller determines that the exhaust unit has completed exhausting. At this point, the exhaust unit has stopped operating under the control of the main controller.

[0073] After confirming that the ventilation is complete, the main controller starts a delay timer and waits for the specified delay duration. During the waiting period, the airflow inside the chamber gradually returns from a turbulent state to a relatively still state. When the delay timer reaches the specified delay duration, the main controller sends a drive signal to the spray unit according to the predetermined spray duration and frequency, controlling the spray unit to start and execute the odor removal spraying action. For schemes involving multiple spraying rounds, the main controller sets a preset interval between each spraying round and can selectively read the odor information from the gas monitoring unit again before each spraying round to decide whether to execute the next spraying round or adjust the subsequent spraying parameters, thus achieving closed-loop control. The spray unit atomizes the liquid odor removal medium into micron-sized droplets and sprays them out. The atomized droplets diffuse in the chamber space and contact, react, or coat residual odor molecules, thereby completing the deep treatment of residual odors.

[0074] Through the multi-stage timing control logic described above, which involves "confirming exhaust completion → waiting for the delay period → triggering spraying according to the spray duration and frequency," this embodiment clarifies the connection node conditions between the two odor removal stages of exhaust and spraying. Based on the type of waste, operating conditions, and real-time gas concentration, it achieves refined configuration of spraying parameters. This ensures that after the exhaust forms negative pressure isolation and removes odors, the spraying odor removal precisely intervenes with the most suitable intensity, duration, and frequency, achieving optimal coordination of multiple odor removal methods in terms of timing and intensity. This allows the odors in the waste compartment to be continuously suppressed or eliminated.

[0075] In one embodiment, it further includes: Odor information inside the garbage compartment is monitored by a gas monitoring unit, and the odor information includes the trend of odor change. Based on the odor change trend, the odor removal device is controlled to operate, and the odor removal device includes a spray unit.

[0076] In one embodiment, when there is no delivery event for an extended period, it is considered a routine odor removal state. During this time, the main controller continuously suppresses or eliminates odors in the garbage compartment through various odor removal devices, such as spray units, ultraviolet lamps, and activated carbon adsorption units. In other words, odor removal from the garbage compartment is not a one-time operation, but a continuous and routine process.

[0077] In practice, odor information inside the garbage compartment can be monitored in real time or periodically by a gas monitoring unit. The operation of the odor removal device can be controlled based on parameters such as odor change trends. This is because the garbage inside the compartment will continuously release odors as it ferments over time. Therefore, odor change trends, such as differences in concentration, can be used as regular activation conditions for odor removal devices, such as spray units, to continuously suppress or eliminate odors inside the garbage compartment.

[0078] This embodiment introduces a differentiated spray parameter determination mechanism based on multi-dimensional information such as waste type, delivery frequency, delivery interval, and gas concentration, building upon Embodiments 1 and 2. This upgrades spray control from a simple "fixed delay + fixed duration" mode to an intelligent decision-making mode of "dynamic delay + differentiated duration + adaptive frequency." The system can customize the most suitable spray odor removal scheme for each delivery event based on the odor release characteristics of different types of waste, the usage level of the waste bin, and the real-time gas concentration level inside the bin. For kitchen waste and high-frequency usage scenarios, the system automatically increases the spray duration and frequency to cope with continuous odor release and cumulative effects; for recyclable waste and low-frequency usage scenarios, the system automatically reduces the spray duration and frequency to save on odor removal media consumption. Simultaneously, by introducing a closed-loop feedback mechanism based on real-time data from the gas monitoring unit, the system can ensure that the odor inside the bin is effectively controlled at the target level under any complex operating conditions, achieving an optimal balance between odor removal effectiveness and resource consumption.

[0079] Example 4: Based on the above embodiments, this embodiment further provides a temperature and humidity monitoring and linkage control mechanism adapted to high humidity environments. This embodiment aims to solve the problem of reduced effectiveness of some odor removal devices due to excessive humidity in garbage containers during the rainy season in southern China, in coastal high-humidity areas, or in underground enclosed spaces. By linking temperature and humidity monitoring with the exhaust unit, the humidity inside the container is controlled within a suitable range for odor removal operations.

[0080] In practical garbage bin applications, the relative humidity in southern my country is consistently high, with some areas experiencing average relative humidity exceeding 80% RH in summer. This high humidity environment negatively impacts various odor removal devices within the garbage bins. For example, some garbage bins, in addition to spray units, may also have physical adsorption devices such as activated carbon adsorption units or molecular sieve adsorption units installed in the exhaust ducts or on the inner walls of the bin. Under high humidity conditions, water molecules in the microporous structure of activated carbon and other adsorption materials compete with odor molecules for adsorption, leading to a significant decrease in the adsorption capacity for target odor substances such as volatile organic compounds. In severe cases, the adsorption efficiency can decrease by 30% to 50% or more. Furthermore, excessive humidity accelerates the anaerobic fermentation process of garbage, indirectly increasing the rate of odor generation, and also accelerates the corrosion of metal components, affecting the equipment's lifespan. Therefore, monitoring and actively controlling the humidity inside the bin is crucial to ensuring the efficient and stable operation of the odor removal system throughout the year in the high-humidity southern regions.

[0081] In this embodiment, a temperature and humidity monitoring unit is further installed inside the garbage compartment. This unit is installed inside the garbage compartment and electrically connected to the main controller, used to collect real-time temperature and humidity information within the compartment. The temperature and humidity monitoring unit can take various forms, such as digital temperature and humidity sensors, analog temperature and humidity transmitters, or composite sensor modules integrating temperature and humidity sensing functions. In a typical implementation, the temperature and humidity monitoring unit can be integrated with the aforementioned gas monitoring unit in the same sensing module, or it can be independently installed in the central area of ​​the compartment to accurately reflect the overall temperature and humidity environment inside the compartment and avoid interference from local heat or humidity sources.

[0082] In this embodiment, the main controller continuously or periodically acquires humidity information inside the compartment collected by the temperature and humidity monitoring unit during system operation. The main controller has a preset humidity control threshold range, the upper and lower limits of which correspond to the upper humidity limit requiring dehumidification and the lower humidity limit allowing dehumidification to be stopped, respectively. The specific value of the humidity control threshold range can be set according to the type of odor removal device equipped in the garbage compartment and its humidity tolerance characteristics. In a typical implementation, when the garbage compartment is equipped with an activated carbon adsorption unit, to ensure that the adsorption efficiency of the activated carbon remains at a high level, the upper humidity limit can be set to a specific value within the range of approximately 65%RH to 75%RH (e.g., 70%RH), and the lower humidity limit can be set to a specific value within the range of approximately 50%RH to 60%RH (e.g., 55%RH). When the humidity inside the compartment consistently exceeds 75%RH, the adsorption efficiency of the activated carbon decreases significantly; while when the humidity drops below 55%RH, the microporous structure of the activated carbon can effectively restore its preferential adsorption capacity for odor molecules. Those skilled in the art can reasonably set and adjust the above thresholds based on the technical specifications of the selected odor removal device and the climatic conditions of the application scenario.

[0083] When the main controller determines that the current humidity inside the compartment has reached or exceeded the preset upper limit, it triggers the humidity linkage control process. Specifically, the main controller performs the following actions: First, the main controller determines whether the system is currently in a normal odor removal process driven by a delivery event. If it is currently in the exhaust or spray stage, the humidity linkage control process will not interrupt the ongoing odor removal operation, but will wait for the current exhaust or spray action to complete before starting the dehumidification and exhaust. If the system is currently in standby mode (i.e., no delivery event has occurred), the main controller will immediately trigger the dehumidification and exhaust action.

[0084] The dehumidification and exhaust operation refers to the main controller controlling the exhaust unit to operate at a preset dehumidification and exhaust speed to expel the high-humidity air inside the compartment and reduce the absolute humidity inside the compartment through ventilation. The dehumidification and exhaust speed and duration can be set according to the volume of the garbage compartment, the flow rate of the exhaust unit, and the target dehumidification level. In one implementation, the dehumidification and exhaust speed is set to a low speed (or a dedicated dehumidification speed) to avoid excessively high air velocity causing drastic fluctuations in air pressure inside the compartment and wasted energy; the dehumidification and exhaust duration can be set to a preset value that matches the flow rate of the exhaust unit. For example, for a 500-liter garbage compartment, the exhaust unit's low-speed exhaust flow rate is 150 liters / minute. The theoretical number of air changes required to reduce the humidity inside the compartment from 75%RH to 55%RH is approximately 2 to 3 times, and the corresponding dehumidification and exhaust duration can be set to approximately 60 to 90 seconds. In another implementation, the main controller can also dynamically adjust the dehumidification and exhaust duration based on the humidity changes reported in real time by the temperature and humidity monitoring unit. When the humidity drops to the preset safe humidity lower limit, the exhaust will automatically stop, thus achieving closed-loop dehumidification control.

[0085] During dehumidification and exhaust, if a delivery event occurs, the main controller prioritizes responding to the delivery event, interrupting dehumidification and exhaust, and instead executing the delivery event-driven odor removal process described in Examples 1 to 3. After completion, it decides whether to resume dehumidification and exhaust based on the current humidity inside the compartment. This priority setting ensures that the core function of odor isolation is not affected by dehumidification control.

[0086] In further optimized implementations, the garbage compartment can also be equipped with an independent dehumidification unit, such as a semiconductor dehumidification module, a desiccant rotary dehumidification device, or a small condensation dehumidifier. With this configuration, when the humidity inside the compartment reaches or exceeds the upper limit, the main controller can selectively activate the dehumidification unit for active dehumidification, discharging the condensate outside the compartment through a drain outlet or water collection tank at the bottom of the compartment. This complements the exhaust dehumidification process, further reducing energy consumption.

[0087] In addition, the main controller monitors and records the temperature information inside the compartment. When the temperature continues to rise abnormally, it may indicate that the abnormal fermentation of waste is intensifying or that there are other abnormal heat sources. The main controller can use the temperature abnormality as one of the auxiliary criteria for triggering safety redundancy control, and combine it with the gas concentration value of the gas monitoring unit in the aforementioned embodiment to conduct a comprehensive safety assessment, thereby further improving the system's safety protection capabilities.

[0088] Through the added temperature and humidity monitoring and linkage control mechanism in this embodiment, the system, in addition to achieving negative pressure isolation based on delivery events and intelligent spray deodorization, further possesses adaptive capabilities for special climatic environments such as the high humidity in southern regions. By monitoring the humidity inside the compartment in real time and linking it with the exhaust unit for dehumidification, the system can maintain the humidity inside the compartment within a range suitable for the efficient operation of the deodorization device, effectively avoiding the attenuation of adsorption efficiency of adsorbent materials such as activated carbon due to high humidity, and ensuring the stability and reliability of the multi-stage deodorization system under all climatic conditions. At the same time, humidity control also indirectly inhibits the anaerobic fermentation rate of waste, reducing the continuous generation of odors from the source, and providing effective technical support for the all-weather, wide-area applicability of the waste compartment deodorization system.

[0089] Example 5: This embodiment, based on Embodiment 1, adds a safety redundancy control mechanism. This mechanism is used to forcibly activate exhaust ventilation to restore the gas concentration inside the waste compartment to a safe range when the concentration of hazardous gases inside the compartment abnormally rises to a level that may threaten personal safety or equipment safety, ignoring any odor removal sequence operations currently being performed by the system, and outputs an alarm signal depending on the degree of danger.

[0090] As sealed or semi-sealed containers, garbage bins may generate various harmful gases (such as carbon dioxide, methane, hydrogen sulfide, and carbon monoxide) due to garbage fermentation, chemical reactions, or accidental introduction of foreign objects. Under normal operating conditions, the event-driven odor removal methods described in Examples 1 to 4 can effectively control odors and gas concentrations within the bin. However, under abnormal circumstances—such as the disposal of a large amount of highly fermentable garbage, accidental blockage of the bin's exhaust duct, malfunction of the exhaust unit, or prolonged lack of garbage collection leading to continuous garbage fermentation—the concentration of harmful gases within the bin may continuously rise to dangerous levels. In such cases, conventional odor removal operations driven solely by the disposal event cannot guarantee safety; the system needs to possess safety redundancy intervention capabilities independent of event-driven logic.

[0091] In this embodiment, the odor control method for the garbage compartment further includes: acquiring odor information in the garbage compartment collected by the gas monitoring unit, the odor information including the concentration value of a risk gas; when the concentration value of the risk gas reaches a first preset safety threshold, controlling the exhaust unit to exhaust air until the concentration value of the risk gas falls back to the preset safety range.

[0092] Specifically, the risk gas concentration value refers to the quantitative data collected by the gas monitoring unit, used to characterize the concentration level of a specific target gas within the waste container. The target gas can be one or more characteristic gases related to the safety of confined spaces. In a typical implementation, the target gas is carbon dioxide (CO2), which, as one of the main products of the waste fermentation process, can directly threaten the safety of personnel entering the container if its concentration increases, and can also serve as a comprehensive indicator of the overall deterioration of the gaseous environment within the container. In another implementation, the target gas may also include methane (flammable gas risk), hydrogen sulfide (toxic gas risk), or carbon monoxide (toxic gas risk), etc. The gas monitoring unit can be configured as a single gas sensor or a multi-gas integrated sensor, as needed.

[0093] The first preset safety threshold is a pre-set safety warning line for the concentration of hazardous gases. The specific value of the first preset safety threshold is set according to the type of target gas and safety standards. Taking carbon dioxide as an example, according to occupational health and safety standards, when the concentration of carbon dioxide in ambient air exceeds a certain level (e.g., 5000 ppm, or 0.5%), prolonged exposure may cause discomfort; exceeding higher levels (e.g., 10000 ppm, or 1%) may cause significant physiological reactions. The first preset safety threshold can be set within an appropriate margin of the aforementioned standard limits, for example, a specific value within the range of 3000 ppm to 5000 ppm, preset by the system at the factory or configured by maintenance personnel according to local safety regulations. For flammable gases such as methane, the first preset safety threshold should be set at a level far below the lower explosive limit concentration, for example, between 10% and 20% of the lower explosive limit.

[0094] The main controller continuously or periodically acquires the concentration values ​​of hazardous gases collected by the gas monitoring unit and compares these values ​​with a first preset safety threshold. When the hazardous gas concentration value is lower than the first preset safety threshold, it indicates that the gas environment inside the compartment is in a safe state, and the system operates according to the normal odor removal control logic described in Examples 1 to 4. When the main controller determines that the hazardous gas concentration value has reached or exceeded the first preset safety threshold, it indicates that the gas environment inside the compartment has entered a dangerous state, and the system immediately triggers the safety redundancy control process.

[0095] After the safety redundancy control process is triggered, the main controller performs the following actions: First, the currently executing actions of the exhaust unit and the spray unit are interrupted. This interruption means that regardless of which stage of the event-driven odor removal sequence the system is currently in—whether it's performing the differentiated exhaust operation described in Example 2, waiting for the delayed execution time described in Example 3, or performing a spray odor removal action—the main controller immediately stops the execution of all current odor removal-related operations. If the exhaust unit is running, the main controller sends it a stop signal; if the spray unit is running or in a pending trigger state, the main controller cancels its current operation and resets its timer. The purpose of the interruption operation is to free up system control resources and concentrate all available exhaust capacity on safe exhaust tasks.

[0096] Secondly, the system forcibly controls the backup exhaust unit to perform exhaust. The backup exhaust unit refers to an exhaust device independent of the main exhaust unit, specifically designed for safety redundancy exhaust, or an exhaust duct that forces the main exhaust unit to switch to safety exhaust mode when the system only has a single exhaust unit. In one implementation, the backup exhaust unit shares the same physical fan as the main exhaust unit, but when the safety redundancy control process is triggered, it is forcibly switched to the highest exhaust speed, operating at full speed, unaffected by the exhaust speed and duration limitations in the normal odor removal logic. In another implementation, the garbage compartment is equipped with a dedicated safety exhaust fan independent of the main exhaust unit. This fan is normally off, only starting when the safety redundancy control process is triggered. Regardless of the hardware configuration, this forced control means that the start and continuation of safety exhaust are not constrained by any parameters or states in the normal odor removal control process; exhaust will continue until the gas concentration drops back to a safe range.

[0097] Finally, the main controller continuously monitors the risk gas concentration value of the gas monitoring unit. When the risk gas concentration value falls back to a safe range—that is, below the first preset safety threshold, or below a safety recovery threshold set below the first preset safety threshold (to avoid frequent switching at the threshold boundary)—the main controller determines that the dangerous state has been cleared. At this point, the safety redundancy control process ends, and the system returns exhaust control to the normal odor removal control logic, resuming normal monitoring and response to subsequent events.

[0098] Based on the above embodiments, this embodiment further provides a tiered alarm mechanism. The odor control method for garbage compartments also includes: when the concentration of the hazardous gas reaches a second preset safety threshold, an alarm signal is output, wherein the second preset safety threshold is higher than the first preset safety threshold.

[0099] Specifically, the second preset safety threshold is another gas concentration safety warning line that is higher than the first preset safety threshold. If the first preset safety threshold represents the initial level of danger requiring forced ventilation intervention, then the second preset safety threshold represents a higher level of danger where forced ventilation still cannot effectively contain the situation or the situation has further deteriorated. Taking carbon dioxide as an example, if the first preset safety threshold is set to approximately 5000 ppm, the second preset safety threshold can be set to approximately 10000 ppm, corresponding to a more pressing safety risk level.

[0100] The alarm signal refers to the warning information sent by the main controller to external systems or maintenance personnel. The output form of the alarm signal can be varied. In one implementation, the alarm signal is a level signal that drives the audible and visual alarm devices (such as buzzers and warning lights) installed on the garbage compartment to alert nearby personnel to stay away and notify maintenance personnel for timely handling. In another implementation, the alarm signal is an alarm message (such as SMS, application push notification, or platform alarm event log) sent to a remote management platform or maintenance personnel's mobile terminal via a communication interface (such as a 4G / 5G cellular module, Wi-Fi module, NB-IoT module, or Ethernet interface). In yet another implementation, the alarm signal can also simultaneously trigger the action of other safety devices linked to the garbage compartment, such as automatically opening the auxiliary ventilation vents of the compartment or cutting off the power supply to unsafe circuits inside the compartment. The alarm signal content can include information such as the current concentration of hazardous gases, the trigger timestamp, and the garbage compartment location identifier, so that maintenance personnel can quickly locate and handle the situation.

[0101] By setting a two-level safety redundancy system with a first preset safety threshold and a second preset safety threshold, the system can take two progressive response measures in sequence, namely "forced ventilation intervention" and "external alarm notification", when the concentration of hazardous gas rises abnormally, thus realizing a complete safety closed loop from autonomous emergency response to manual intervention.

[0102] This embodiment provides an independent safety guarantee for the garbage container by superimposing a safety redundancy control mechanism independent of the delivery event on top of the event-driven odor removal framework of Embodiment 1. When the concentration of hazardous gas reaches the first preset safety threshold, forced ventilation is immediately activated regardless of the current operating state of the system, ensuring that the hazardous gas is quickly discharged, fundamentally avoiding the risk of harmful gas accumulation caused by ventilation unit failure, channel blockage, or abnormal fermentation. The further introduced second preset safety threshold and alarm signal output mechanism realize a graded and progressive safety response—the system autonomously responds when the concentration reaches the first threshold, and actively notifies external intervention when the concentration continues to climb to the second threshold, constructing a dual safety guarantee of "autonomous ventilation + manual intervention". This mechanism effectively makes up for the lack of independent safety redundancy in simple event-driven odor removal control, significantly improving the safety protection capability of the garbage container in response to abnormal gas risks in actual deployment environments, and ensuring the safety of people in public spaces and residential communities.

[0103] Example 6: This embodiment provides a garbage compartment odor removal control system, which is used to execute the garbage compartment odor removal control methods described in the above embodiments. This embodiment maps each step in the method claims to a corresponding system functional unit, and the units work collaboratively to achieve event-driven timing control and safety redundancy assurance for garbage compartment odor removal.

[0104] At the hardware level, the system can consist of a main controller, and delivery sensing devices (including one or more delivery sensing units), gas monitoring devices (including one or more gas monitoring units), exhaust control devices (including one or more exhaust units), and odor removal devices (including one or more spray units) that are communicatively connected to the main controller. The main controller can be a control core built on a microcontroller, embedded microprocessor, or programmable logic controller, and internally includes a processor, memory, and various communication interfaces. The memory stores computer program instructions, preset parameter tables, and temporary data generated during runtime. The communication interfaces can include general-purpose input / output interfaces, analog-to-digital conversion interfaces, serial communication interfaces, and / or wireless communication interfaces, used for data interaction and control signal transmission with various peripheral functional units.

[0105] The system includes the following functional units at the functional level: The delivery sensing device is used to monitor the opening and closing status of the garbage bin's delivery port through the delivery sensing unit, and to confirm whether a delivery event has occurred based on the opening and closing status.

[0106] Specifically, the disposal sensing unit is the sensing component in the system responsible for sensing the user's disposal behavior. In terms of hardware implementation, the disposal sensing unit can be one of the following: a contact limit switch, a non-contact photoelectric sensor, a magnetic reed switch, a micro switch, or an angle sensor. The disposal sensing unit is installed at the opening and closing mechanism of the garbage bin's disposal opening. When the user opens or closes the disposal opening, the mechanical displacement of the opening triggers a state change in the disposal sensing unit. The disposal sensing unit transmits an electrical signal (e.g., a high / low level signal or a switching signal) indicating the opening / closing state of the disposal opening to the main controller. The main controller processes the opening / closing state signal according to a preset event confirmation logic (e.g., detecting a complete state transition sequence of "closed → open → closed") to confirm the occurrence of a disposal event. After confirming the disposal event, the main controller triggers the subsequent odor removal control sequence.

[0107] Through this delivery sensing unit, the system obtains the starting trigger signal to drive the entire odor removal control process, achieving precise synchronization between the odor removal operation and the user's delivery behavior.

[0108] The exhaust actuator is used to acquire the first operating parameters of the exhaust unit when the delivery event is confirmed, and control the exhaust unit to exhaust air based on the first operating parameters, so as to form a negative pressure airflow barrier at the delivery port.

[0109] Specifically, the exhaust execution unit is the logic control module in the system responsible for performing exhaust and odor removal operations. In terms of hardware implementation, the exhaust execution unit's function is achieved by the main controller executing a preset control program. Its controlled object is the physical exhaust unit (e.g., axial flow fan, centrifugal fan, or negative pressure exhaust fan). After receiving a delivery event confirmation signal, the exhaust execution unit reads the first operating parameters from the main controller's memory or calculates them in real time based on the current operating conditions. The first operating parameters include at least the exhaust speed setting and the exhaust duration. The method for setting the exhaust speed setting has been described in detail in the aforementioned embodiments; for example, it can be set to two speeds (high speed and low speed), or three speeds (high, medium, and low), or a continuously stepless adjustable mode. Based on the determined first operating parameters, the exhaust execution unit sends corresponding drive signals (e.g., PWM speed control signals or relay switch signals) to the exhaust unit through the main controller's communication interface, controlling the exhaust unit to start operation at the target speed and stopping operation after the exhaust duration is reached.

[0110] In a further embodiment, the exhaust unit can also determine the first operating parameters based on the type of waste corresponding to the waste container. For example, when the waste type is kitchen waste, the exhaust speed is set to high speed and the exhaust duration is set to a first preset exhaust duration; when the waste type is recyclable waste, the exhaust speed is set to low speed and the exhaust duration is set to a second preset exhaust duration, where the second preset exhaust duration is shorter than the first preset exhaust duration. The specific implementation details of this differentiated exhaust strategy are as described in the aforementioned embodiments and will not be repeated here.

[0111] Through this exhaust unit, the system can quickly lock in odorous gases to prevent them from overflowing and discharge them outside the compartment immediately after a delivery event occurs, thus achieving real-time control of the odor source.

[0112] The spray execution device is used to acquire a second operating parameter of the spray unit, wherein the second operating parameter includes a delay execution duration.

[0113] Specifically, the spray execution unit is the logic control module in the system responsible for performing the spray odor removal operation. In hardware implementation, the spray execution unit's function is achieved by the main controller executing a preset control program. Its controlled objects are physical spray units (such as ultrasonic atomizers, high-pressure micro-mist nozzles, or gas-liquid two-fluid atomizing nozzles) and their associated storage tanks and pumps. The second operating parameter includes at least a delayed execution duration. In one implementation, the delayed execution duration can be a fixed value preset by the system. In another implementation, the delayed execution duration can be dynamically determined based on odor information collected by the gas monitoring unit. The specific determination method is as described in the aforementioned embodiments: the main controller searches for the corresponding delayed execution duration in a preset segmented mapping table based on the numerical range of the odor information.

[0114] The spray actuator is also used to control the spray unit to spray and remove odors based on the first operating parameters and the second operating parameters.

[0115] Specifically, the spray execution unit and the exhaust execution unit work in concert. The spray execution unit obtains the exhaust duration information from the first operating parameters used by the exhaust execution unit, and uses this information to confirm whether the exhaust unit has completed exhaust. After confirming completion, the spray execution unit starts a delay timer, and after the delay duration is reached, it sends a drive signal to the spray unit through the main controller's communication interface to control the spray unit to start the atomization spraying action. The spraying action converts the liquid deodorizing medium into micron-sized atomized droplets and releases them into the chamber space for in-depth treatment of residual odors. The spraying duration can be set by other parameters in the second operating parameters.

[0116] Through this spray execution unit, the system not only removes high-concentration odors through exhaust, but also deeply neutralizes residual odors, achieving precise timing linkage between the two-stage odor removal actions.

[0117] Based on the aforementioned functional units, the garbage compartment odor control system of this embodiment can also integrate a safety redundancy control function. The main controller is further configured to: acquire the concentration value of hazardous gases inside the garbage compartment collected by the gas monitoring unit; when the concentration value of the hazardous gases reaches a first preset safety threshold, control the exhaust unit to exhaust gases until the concentration value of the hazardous gases falls back to a safe range; and when the concentration value of the hazardous gases reaches a second preset safety threshold, output an alarm signal, wherein the second preset safety threshold is higher than the first preset safety threshold. The specific implementation details of the above safety redundancy control logic are as described in the foregoing embodiments.

[0118] By integrating this safety redundancy control function, the system gains an independent safety barrier in addition to event-driven odor control. It can autonomously respond to emergencies and issue graded alarms when the concentration of hazardous gases rises abnormally, ensuring the safety of personnel and equipment in abnormal operating conditions of the garbage bin.

[0119] Based on the above system embodiments, this embodiment also provides a garbage bin. The garbage bin includes a processor, a memory, a communication interface, and a communication bus. The processor, the memory, and the communication interface communicate with each other via the communication bus. The memory stores at least one executable instruction, which causes the processor to perform the operation of the garbage bin odor control method as described in the above embodiments.

[0120] In a typical implementation, the trash can is an intelligent and environmentally friendly waste collection container used in residential communities, commercial districts, office parks, or public places. The trash can's body can be made of sheet metal or engineering plastic, and its interior is divided into one or more waste storage areas. The body has at least one disposal port, with a disposal sensor unit installed at the port. A gas monitoring unit, an exhaust unit, and a spray unit are installed inside or on the walls of the body. These functional units are electrically connected to a main controller installed inside the body via wiring harnesses. The main controller is equipped with an embedded processor, runs the odor removal control program described in the embodiments of this application, performs event-driven timing control of the exhaust unit and the spray unit, and continuously performs safety redundancy monitoring. The trash can may also be equipped with a human-machine interface (e.g., a touchscreen or voice prompt module) to provide users with waste sorting guidance and system operating status information; it may also be equipped with a network communication module to upload operating data and alarm information to a remote management platform.

[0121] This embodiment also provides a computer-readable storage medium. The storage medium stores at least one executable instruction, which, when executed on the garbage bin, causes the garbage bin to perform the odor control method for garbage bins described in the above embodiment. The computer-readable storage medium can be various non-volatile storage media known in the art, such as flash memory, read-only memory, programmable read-only memory, electrically erasable programmable memory, registers, and / or magnetic storage media. During the production process of the garbage bin, a firmware program containing the aforementioned executable instruction can be burned into the onboard flash memory of the main controller. After the garbage bin is powered on, the main controller automatically loads and executes the firmware program to realize the odor control function of this application.

[0122] In addition to the technical solutions described in the above embodiments, the following provides supplementary explanations of the overall workflow and beneficial effects of this system in typical applications.

[0123] The following example, using a complete garbage disposal and odor removal response cycle, illustrates the overall frame coordination between the various functional units of this system. The system normally operates in a routine monitoring mode. The main controller continuously monitors the status of the disposal port through the disposal sensor unit, while the gas monitoring unit collects gas concentration values ​​inside the bin at preset intervals. When a user disposes of garbage into the bin: the disposal sensor unit detects the opening sequence of the disposal port, and the main controller confirms a disposal event; the main controller obtains the garbage type corresponding to the current bin (e.g., obtained from the sorting button pressed by the user before disposal), determines the first operating parameter based on the garbage type, and controls the exhaust unit to start exhaust at the target level; simultaneously, the main controller obtains odor information collected by the gas monitoring unit, and determines the delay execution duration based on the odor information (approximately 5 seconds for high concentration, approximately 15 seconds for medium concentration, and approximately 30 seconds for low concentration); the exhaust unit automatically stops after the exhaust duration is reached, the main controller starts a delay timer, and after waiting for the delay execution duration, controls the spray unit to perform approximately 15 seconds of spray odor removal operation. A complete disposal response cycle ends, and the system returns to the routine monitoring mode, awaiting the next disposal event. During the entire operation, if the gas monitoring unit detects that the gas concentration value has reached the first preset safety threshold, the safety redundancy logic will immediately intervene, interrupt all current odor removal operations, and force full-speed ventilation until the gas concentration value drops back to the safe range.

[0124] It should be noted that, in this document, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or system that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or system. Unless otherwise specified, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the process, method, article, or system that includes that element.

[0125] The sequence numbers of the embodiments in this application are for descriptive purposes only and do not represent the superiority or inferiority of the embodiments.

[0126] Through the above description of the embodiments, those skilled in the art can clearly understand that the methods of the above embodiments can be implemented by means of software plus necessary general-purpose hardware platforms. Of course, they can also be implemented by hardware, but in many cases the former is a better implementation method. Based on this understanding, the technical solution of this application, in essence, or the part that contributes to the prior art, can be embodied in the form of a software product. This computer software product is stored in a storage medium (such as ROM / RAM, magnetic disk, optical disk) as described above, and includes several instructions to cause a terminal device (which may be a mobile phone, computer, server, air conditioner, or network device, etc.) to execute the methods described in the various embodiments of this application.

Claims

1. A method for controlling odor removal in garbage bins, characterized in that, include: The opening and closing status of the garbage bin's disposal opening is monitored by the disposal sensing unit, and based on the opening and closing status, it is confirmed whether a disposal event has occurred. When the delivery event is confirmed, the first operating parameters of the exhaust unit are obtained, and based on the first operating parameters, the exhaust unit is controlled to exhaust air to form a negative pressure airflow barrier at the delivery port. Obtain the second operating parameters of the spray unit, wherein the second operating parameters include the delay execution duration; Based on the first operating parameters and the second operating parameters, the spray unit is controlled to spray and remove odors.

2. The odor control method for garbage bins according to claim 1, characterized in that, When the delivery event is confirmed, the first operating parameters of the exhaust unit are acquired, and based on the first operating parameters, the exhaust unit is controlled to exhaust air to form a negative pressure airflow barrier at the delivery port, including: When the delivery event is confirmed, the first operating parameters are determined according to the type of waste corresponding to the waste container. The first operating parameters include the exhaust fan speed and the exhaust duration. The exhaust unit is controlled to operate at the exhaust setting to form a negative pressure airflow barrier at the delivery port, and the exhaust is stopped when the exhaust duration is reached.

3. The odor control method for garbage bins according to claim 2, characterized in that, The step of determining the first operating parameter based on the type of waste corresponding to the waste container includes: When the type of waste is kitchen waste, the exhaust setting is determined to be high speed and the exhaust duration is the first preset exhaust duration. When the type of waste is other waste, the exhaust speed is set to low speed and the exhaust duration is a second preset exhaust duration, wherein the second preset exhaust duration is less than the first preset exhaust duration.

4. The odor control method for garbage bins according to claim 1, characterized in that, The acquisition of the second operating parameters of the spray unit, wherein the second operating parameters include a delay execution duration, includes: The odor information inside the garbage compartment collected by the gas monitoring unit is acquired, and the delay execution time of the spray unit is determined based on the odor information.

5. The odor control method for garbage bins according to claim 1, characterized in that, The acquisition of the second operating parameter includes the spray duration, and the control of the spray unit to spray and remove odors based on the first operating parameter and the second operating parameter includes: Based on the first operating parameters, confirm whether the exhaust unit has finished exhausting air; If ventilation is completed, after the specified delay period, the spray unit is controlled to spray to remove odors according to the specified spray duration.

6. The odor control method for garbage bins according to claim 1, characterized in that, Also includes: The gas monitoring unit collects odor information from inside the garbage compartment, including the concentration value of hazardous gases. When the concentration of the hazardous gas reaches the first preset safety threshold, the exhaust unit is controlled to exhaust until the concentration of the hazardous gas drops back to the preset safety range. When the concentration of the hazardous gas reaches a second preset safety threshold, an alarm signal is output. The second preset safety threshold is higher than the first preset safety threshold.

7. The odor control method for garbage bins according to claim 1, characterized in that, Also includes: Odor information inside the garbage compartment is monitored by a gas monitoring unit, and the odor information includes the trend of odor change. Based on the odor change trend, the odor removal device is controlled to operate, and the odor removal device includes a spray unit.

8. A garbage bin odor removal control system, characterized in that, include: The delivery sensing device is used to monitor the opening and closing status of the garbage bin's delivery opening through the delivery sensing unit, and to confirm whether a delivery event has occurred based on the opening and closing status. An exhaust control device is used to acquire first operating parameters of the exhaust unit when the delivery event is confirmed to have occurred, and control the exhaust unit to exhaust air based on the first operating parameters, so as to form a negative pressure airflow barrier at the delivery port. The odor removal device is used to acquire a second operating parameter of the spray unit, wherein the second operating parameter includes a delay execution duration; The odor removal device is also used to control the spray unit to spray and remove odors based on the first operating parameters and the second operating parameters.

9. A type of garbage container, characterized in that, include: The processor, memory, communication interface, and communication bus are provided, wherein the processor, memory, and communication interface communicate with each other via the communication bus. The memory is used to store at least one executable instruction that causes the processor to perform the operation of the garbage compartment odor control method as described in any one of claims 1-7.

10. A computer-readable storage medium, characterized in that, The storage medium stores at least one executable instruction, which, when executed on the garbage container, causes the garbage container to perform the operation of the garbage container odor control method as described in any one of claims 1-7.

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