A method of weighing an automatic weighing garbage can

Abstract

The application discloses a kind of automatic weighing's garbage can's weighing method, comprising: the weight data of the pressure sensor is obtained, the average weight data M0 of the box is calculated;According to the dry and wet type of garbage, the average weight data M0 of the box is associated with the weight change curve of time t;According to the dry and wet type of garbage in the box, the corresponding weight change curve is selected, whether the box is full is judged by the weight change curve, yes, stop packing. Realize the automatic weighing of garbage can and full load early warning.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of garbage can weighing, in particular to a weighing method of an automatically weighed garbage can. BACKGROUND

[0002] The garbage compression box includes a compressor and a garbage can, and the compressor is arranged at the garbage inlet of the garbage can to compress the collected garbage into the garbage can. The existing garbage compression box weighing is to set pressure sensors at the four supporting points of the garbage can, and to obtain the weight of the garbage compression box by obtaining the average value of the readings of the pressure sensors. Such a weighing method increases the self-weight, reduces the total amount of garbage carried by the equipment, and increases the operating cost.

[0003] In the actual compression and loading process of the garbage, the garbage can needs to be weighed while the garbage is being compressed and loaded to ensure that the garbage loaded in the garbage can body does not exceed the weight. Since the subsequent garbage can needs to be transported by a transfer vehicle, the overweight garbage can poses a safety hazard to the operation of the transfer vehicle. Since the center of gravity of different types of garbage changes during garbage loading, the weight data obtained by the pressure sensor may be biased. Therefore, the weighing method using the average value of the pressure sensor has errors. The actual weight data of the weighed garbage can may exceed the weight or the weight data may be insufficient. The overweight poses a safety hazard to the safe operation of the transfer vehicle, threatens the public safety of road traffic, and also damages the road surface. Insufficient weight data greatly wastes the transfer capacity and reduces economic efficiency.

[0004] In view of the problems existing in the prior art, the present application provides a weighing method of an automatically weighed garbage can. SUMMARY

[0005] Therefore, the purpose of the present application is to provide a weighing method of an automatically weighed garbage can, which can solve the above problems.

[0006] The present application provides a weighing method of an automatically weighed garbage can, which is based on an automatically weighed garbage can. The garbage can includes a box body, a set of pressure sensors, and a controller.

[0007] The box body is provided with a garbage feeding opening, the front end bottom of the box body is provided with a support longitudinal beam, and the rear end bottom of the box body is provided with a set of rollers. The rollers are provided with pressure sensors for obtaining the weight data of the box body.

[0008] The pressure sensors are communicatively connected to the controller for collecting the weight data of the box body.

[0009] The method comprises the following steps:

[0010] Obtaining the weight data of the pressure sensor, calculating the average weight data M0 of the box;

[0011] According to the dry and wet types of garbage, the average weight data M0 of the box is associated with the weight change curve of time t;

[0012] According to the dry and wet types of garbage in the box, the corresponding weight change curve is selected, and whether the box is full is judged by the weight change curve.

[0013] Further, the roller is sleeved on the roller pin shaft, and the two ends of the roller pin shaft are fixed on the pressure sensor. The pressure sensor is fixed below the opening of the C-shaped piece through the fixed locking piece, and the non-opening end of the C-shaped piece is installed at the bottom of the rear end of the box.

[0014] Further, the roller is sleeved on the pressure sensor, and the two ends of the pressure sensor are fixed on the fixed plate. The fixed plate is fixed below the opening of the C-shaped piece through the fixed locking piece, and the non-opening end of the C-shaped piece is installed at the bottom of the rear end of the box.

[0015] Further, the upper part of the box is provided with a movable wet garbage shovel, which is used to stir the wet garbage to make the wet garbage evenly distributed in the box.

[0016] Further, a compressor is arranged below the garbage feeding opening, the feeding port of the compressor faces the garbage feeding opening, and the discharging port of the compressor faces the box, which is used to compress the solid garbage fed from the garbage feeding opening.

[0017] The weight change curve of the box associated with the average weight data M0 of the box and time t according to the dry and wet types of garbage includes:

[0018] According to the relationship between the change of the average weight data M0 of the box in unit time t and the number of dry garbage compression n, the dry garbage weight change curve is constructed;

[0019] According to the relationship between the average weight data M0 of the box and time t, the wet garbage weight change curve is constructed.

[0020] Further, the judgment of whether the box is full by the weight change curve includes:

[0021] If the change of the average weight data M0 in unit time t on the dry garbage weight change curve is less than 0 for a plurality of times in succession, a stop feeding signal is sent.

[0022] Further, before the stop feeding signal is sent, the following is performed:

[0023] It is determined whether the average weight data M0 is within the garbage bridge weight threshold. If so, an early warning signal is sent; otherwise, a stop packing signal is sent.

[0024] Further, judging whether the box is full according to the weight change curve and stopping the packing if it is full includes:

[0025] Obtain the average weight data M0 of the wet garbage weight change curve with a weight change of 1 per unit time, mark it as the stable wet garbage weight, and determine whether the stable wet garbage weight exceeds 90% of the garbage weight that the box can bear. If so, send a stop packing signal.

[0026] Furthermore, the unit time is 0.1-1 ms.

[0027] Beneficial effects of the present invention:

[0028] First, by reducing the number of pressure sensors, the weight of the waste bin is reduced, and the number of pressure sensors used is reduced, thus reducing costs. Furthermore, by replacing the roller pin or fixing plate with a pressure sensor, while leaving the rest of the roller-related structure unchanged, the replacement is performed without increasing the material and weight of the waste bin. Because the roller pin and fixing plate are weighing structures, this replacement allows for accurate measurement of the waste bin's weight.

[0029] Secondly, a dry garbage weight change curve is constructed by the relationship between the change in the average weight data M0 of the box body per unit time t and the number of dry garbage compression times n. According to the movement trend of the dry garbage in the box, it can be judged whether the garbage box is close to full by the fact that the average weight data M0 of the dry garbage weight change curve changes less than 0 for several consecutive times per unit time t; at the same time, combined with the garbage bridging weight threshold, it can be judged that there is a bridging phenomenon in the garbage box, and an early warning of manual intervention can be issued.

[0030] Thirdly, by constructing a wet garbage weight change curve based on the relationship between the average weight data M0 of the box and time t, according to the movement change trend of the wet garbage in the box, the average weight data M0 with a weight change of 1 per unit time on the wet garbage weight change curve can be marked as a stable wet garbage weight to avoid the influence of the left and right center of gravity deviation of the wet garbage in the process of becoming stable. By judging whether the stable wet garbage weight exceeds 90% of the garbage weight that the box can bear, it can be determined that the garbage bin is full. BRIEF DESCRIPTION OF THE DRAWINGS

[0031] In order to more clearly illustrate the technical solutions in the embodiments of the present application or the prior art, the following will briefly introduce the drawings needed to be used in the embodiments or prior art description. Obviously, the drawings in the following description only constitute some embodiments of the present application, and for those skilled in the art, other drawings can also be obtained from these drawings without creative labor.

[0032] Figure 1 is a schematic diagram of a garbage can of embodiment one.

[0033] Figure 2 is a schematic diagram of a pressure sensor setting mode of embodiment two.

[0034] Figure 3 is a schematic diagram of a pressure sensor setting mode of embodiment three.

[0035] Figure 4 is a flow chart of the method of embodiment four.

[0036] Figure 5 is a schematic diagram of the distribution of dry garbage in the garbage can of embodiment four.

[0037] Figure 6 is a schematic diagram of the early-stage distribution of dry garbage in the garbage can of embodiment four.

[0038] Figure 7 is a schematic diagram of the mid-stage distribution of dry garbage in the garbage can of embodiment four.

[0039] Figure 8 is a schematic diagram of the late-stage distribution of dry garbage in the garbage can of embodiment four.

[0040] Figure 9 is a weight change curve of dry garbage of embodiment four.

[0041] Figure 10 is a schematic diagram of the early-stage distribution of wet garbage in the garbage can of embodiment four.

[0042] Figure 11 is a schematic diagram of the mid-stage distribution of wet garbage in the garbage can of embodiment four.

[0043] Figure 12 is a schematic diagram of the late-stage distribution of wet garbage in the garbage can of embodiment four.

[0044] Figure 13 is a weight change curve of wet garbage of embodiment four.

[0045] Figure 14 is a schematic diagram of the bridge connecting state of the dry garbage can body of embodiment four. DETAILED DESCRIPTION

[0046] For the convenience of those skilled in the art to understand, the structure of the present application will be further described in detail in combination with the drawings in the embodiments, and it should be understood that, in the embodiments, the steps mentioned can be adjusted in actual need in terms of the order, even can be executed simultaneously or partially simultaneously, except that the order is particularly specified.

[0047] Embodiment one

[0048] As Figure 1 shown, the embodiment of the present application provides an automatic weighing garbage can, comprising: a box body 1, a set of pressure sensors 2 (not shown in the figure), a controller (not shown in the figure);

[0049] The box body 1 is provided with a garbage feeding opening 3, the front end bottom of the box body 1 is provided with a support longitudinal beam 4, the rear end bottom of the box body 1 is provided with a set of rollers 5, the pressure sensor 2 is arranged on the roller 5, and the weight data of the box body 1 is obtained.

[0050] The pressure sensor 2 (not shown in the figure) is communicatively connected to the controller (not shown in the figure), and is used to collect the weight data of the box body 1.

[0051] In the embodiment, the weighing of the garbage can in the prior art is usually realized by arranging pressure sensors at four supporting corners of the garbage can (at present, some are placed on the slide rails, and some are directly installed on the four supporting corner rollers), and the final weight of the garbage can is obtained by calculating the average of the weight data of the four pressure sensors. The pressure sensors arranged in this way will increase the self weight of the garbage can body on the one hand, and on the other hand, since the pressure sensor is a consumable, it needs to be replaced frequently to ensure the accuracy of the weighing of the garbage can body. In the embodiment, the number of pressure sensors is reduced (from 4 to 2), the self weight of the garbage can body is reduced, and the number of pressure sensors used is reduced, thereby reducing the cost.

[0052] Further, the pressure sensor 2 of the present application is arranged on the roller 5 in two embodiments as follows:

[0053] Embodiment two

[0054] Optionally, as Figure 2 shown, the roller 5 is sleeved on the roller pin shaft 6, the roller pin shaft 6 is fixed at both ends of the pressure sensor 2, the pressure sensor 2 is fixed below the opening of the C-shaped piece 8 through the fixed locking piece 7, and the C-shaped piece 8 is installed at the rear end bottom of the box body 2.

[0055] In the embodiment, the two side fixed plates are replaced by the pressure sensor 2, and other roller related structures remain unchanged, the mechanism is replaced without increasing the material, and the self weight of the garbage can is not continuously increased. Since the fixed plate belongs to the weighing structure, the weight data of the garbage can can be accurately obtained by such replacement.

[0056] Example 3

[0057] Optional, such as Figure 3 As shown, the roller 5 is sleeved on the pressure sensor 2, and both ends of the pressure sensor 2 are fixed on the fixed plate 9. The fixed plate 9 is fixed below the opening of the C-shaped member 8 through the fixed locking member 7, and the non-opening end of the C-shaped member 8 is installed at the rear end bottom of the box body 1.

[0058] In this embodiment, the roller pin is replaced with a pressure sensor 2, while the other roller-related structures remain unchanged. This replacement is performed without adding additional materials and without further increasing the weight of the trash can. Since the roller pin is a weighing structure, this replacement can accurately obtain the weight data of the trash can.

[0059] Furthermore, the interior of the box in the present invention needs to be configured accordingly according to the specific types of dry and wet garbage.

[0060] Optionally, a movable wet garbage shovel is provided in the upper part of the box body for moving the wet garbage so that the wet garbage is evenly distributed in the box body.

[0061] In this embodiment, if the box is used to load wet garbage, a movable wet garbage shovel needs to be provided in the upper part of the box. When the wet garbage is poured in from the garbage feeding opening, the wet garbage is easily accumulated under the garbage feeding opening due to its certain stickiness. Therefore, a movable wet garbage shovel is needed to move the wet garbage from under the garbage feeding opening to the inside of the box. At the same time, in order to ensure the accuracy of the subsequent weighing of the wet garbage, the wet garbage needs to be moved evenly so that the wet garbage can be evenly distributed in the box.

[0062] Optionally, a compressor is provided below the garbage feeding opening, with the feed port of the compressor facing the garbage feeding opening and the discharge port of the compressor facing the inside of the box, for compressing the solid garbage fed from the garbage feeding opening.

[0063] In this embodiment, if the bin is used to store dry garbage, a horizontal compressor is installed within the bin to compress the dry garbage, maximizing the bin's capacity. By placing a compressor below the garbage inlet, garbage can be directly compressed into the bin. The compressor then outputs dry garbage blocks horizontally, eliminating the need for manual operation. The principle of how a compressor compresses dry garbage is known technology and will not be detailed here.

[0064] Example 4

[0065] like Figure 4 As shown, an embodiment of the present invention provides a weighing method for a waste bin with automatic weighing, comprising:

[0066] S1acquire the weight data of the pressure sensor, calculate the average weight data M0 of the box;

[0067] In this step, during the real-time weighing process of the garbage can, the pressure data is returned in real time through the pressure sensor, and the average weight data M0 of the box is calculated according to the average value of the two pressure sensors, which is used for subsequent fitting of the weight change curve.

[0068] S2construct a weight change curve of the average weight data M0 of the box associated with time t according to the dry and wet types of garbage;

[0069] In this step, since the direct acquisition data of the pressure sensor is reduced, the compensation calculation is performed by software method. Since the weight changes with time during the weighing process of wet garbage and dry garbage (for example, wet garbage in kitchen state and dry garbage in household garbage), it is necessary to construct the weight change curve of wet garbage and dry garbage respectively.

[0070] S201construct a dry garbage weight change curve according to the relationship between the change of the average weight data M0 of the box in unit time t and the number of dry garbage compression n;

[0071] In this step, dry garbage changes position and density only when it is extruded due to its solid properties, as shown in Figure 5 The box is divided into A area as a receiving area, B area as a compression working area, and C-Q area as a garbage filling area. Since dry garbage only moves and compresses under force, it will show a certain motion trend. The dry garbage will be pushed to the C, D, E, F, G areas (the figure and its letter labels are only for illustrative use) by the new dry garbage block pushed out by the compressor, as shown in Figures 6-8 It shows a more complex motion trend than the fluid state of wet garbage.

[0072] Since each dry garbage block is pushed out by the compressor in sequence, and the volume and density of each dry garbage block pushed out by the compressor are almost the same, the weight of the garbage can will increase steadily according to the increase of the number of dry garbage compression n in the early stage of loading garbage in the garbage can. In the later stage of loading garbage in the garbage can, since the dry garbage in the garbage can tends to be saturated, the dry garbage block pushed out by the compressor may not be able to be pushed into the garbage can, causing the compressor to be empty. At this time, the number of dry garbage compression of the compressor increases, but the weight of the garbage can increases very little. However, due to the characteristics of dry garbage, when the dry garbage block is pushed into the box, it may cause the center of gravity of the box to change constantly. Therefore, the average weight data M0 obtained by the pressure sensor is not accurate. Since the center of gravity will fluctuate within a certain time range, as shown in Figure 9As shown, the dry garbage weight change curve can be constructed according to the relationship between the average weight data M0 of the box and the change of the dry garbage compression times n in unit time t.

[0073] S202 Construct a wet garbage weight change curve according to the relationship between the average weight data M0 of the box and the time t.

[0074] In this step, since the wet garbage is in a fluid state, the flowability is much greater than that of dry garbage. By shoveling the moving wet garbage in the garbage can, the wet garbage is moved, such as Figures 10 to 12 As shown, the fluid will automatically adjust to be horizontal, and after adding wet garbage, the weight will fluctuate before it tends to be horizontal, so the wet garbage weight change curve is as shown in Figure 13

[0075] S3 Select the corresponding weight change curve according to the dry and wet types of the garbage in the box, and determine whether the box is full by the weight change curve. If yes, stop loading.

[0076] S301 If the average weight data M0 on the dry garbage weight change curve changes less than 0 in unit time t for several times in succession, send a stop loading signal.

[0077] Before the stop loading signal is sent, the following is performed:

[0078] S3011 Determine whether the average weight data M0 is within the bridge weight threshold. If yes, send a warning signal, otherwise, send a stop loading signal.

[0079] In this step, if the compressor is unloaded for several times and the average weight data M0 has almost no increase in unit time, it can be determined that the box is close to full. However, since the compressor may be unloaded, it may be a dry garbage bridge phenomenon, such as Figure 14 As shown, the dry garbage has been stacked at the inlet of the compressor, but the middle of the box is still in a hollow state. At this time, it is necessary to further determine whether the average weight data M0 is within the garbage bridge weight threshold. Since this phenomenon of dry garbage often occurs in the initial and middle time periods of garbage loading, the average weight data M0 data can be used to find such phenomenon. For example, the average weight data M0 data at this stage is less than 60% of the maximum weight that the box can bear. At this time, a warning signal is sent, and the dry garbage loading is manually intervened to restore the normal dry garbage loading state.

[0080] S302 Obtain the average weight data M0 of the wet garbage weight change curve, which is 1 in unit time, and mark it as the stable wet garbage weight. Determine whether the stable wet garbage weight exceeds 90% of the garbage weight that the box can bear. If yes, send a stop loading signal.

[0081] ​In this step, due to the wet garbage in the loading process, the wet garbage in the box will swing left and right, causing the center of the box to shift left and right, so the weight data M0 obtained by the pressure sensor is not accurate at all times, only when the wet garbage tends to be horizontal, the weight data M0 obtained by the pressure sensor is the most accurate, the average weight data M0 of the weight change per unit time is 1, and the stable wet garbage weight is marked, the maximum weight that can be carried by different garbage cans is different, generally the full load of wet garbage is 90% of the maximum weight that can be carried by the garbage can, and the stable wet garbage weight is compared with 90% of the maximum weight that can be carried by the garbage can, if it exceeds, stop loading.

[0082] Further, in order to ensure the accuracy of the weight data collected by the pressure sensor, the unit time sampling frequency, i.e. the unit time, can be set to 0.1-1ms.

[0083] Those skilled in the art will appreciate that embodiments of the present application can be provided as methods, systems, or computer program products. Accordingly, the present application can take the form of an entirely hardware embodiment, an entirely software embodiment, or an embodiment combining software and hardware aspects. Furthermore, the present application can take the form of a computer program product on one or more computer-usable storage media (including, but not limited to, disk storage, CD-ROMs, optical storage media, etc.) having computer-usable program code embodied in the medium.

[0084] The present application is described with reference to flowcharts and / or block diagrams of methods, apparatus (systems), and computer program products according to embodiments of the present application. It should be understood that each flow and / or block in the flowcharts and / or block diagrams, as well as combinations of flows and / or blocks in the flowcharts and / or block diagrams, can be implemented by computer program instructions. These computer program instructions can be provided to a processor of a general-purpose computer, a special-purpose computer, an embedded processor, or other programmable data processing apparatus to produce a machine, so that the instructions executed by the processor of the computer or other programmable data processing apparatus produce a means for implementing the functions specified in the flowcharts and / or block diagrams. Figure 1 one or more flows and / or blocks Figure 1 means for carrying out the functions specified in the flowchart

[0085] These computer program instructions can also be stored in a computer-readable memory that can direct the computer or other programmable data processing apparatus to work in a specific manner, so that the instructions stored in the computer-readable memory produce a product including instruction means, which implements the functions specified in the flowcharts and / or block diagrams. Figure 1 one or more flows and / or blocks Figure 1 means for carrying out the functions specified in the flowchart

[0086] These computer program instructions can also be loaded into a computer or other programmable data processing devices, so that a series of operation steps are performed on the computer or other programmable devices to generate computer-implemented processes, thus the instructions executed on the computer or other programmable devices provide a process for implementing the functions specified in the flowchart Figure 1 one or more flows and / or blocks Figure 1 one or more blocks or several blocks.

[0087] It should be noted that in the claims the reference signs placed between parentheses shall not be construed as limiting the claim. The word 'comprising' does not exclude not to have other parts than those mentioned in the claim. The word 'a' or 'an' preceding an element does not exclude the presence of a plurality of such elements. It is further noted that the use of the term 'comprising' does not exclude the presence of other elements or steps than those listed in a claim. Use of the term 'one' does not exclude the presence of more than one, unless otherwise required by the context. The use of the term 'another' does not exclude the presence of a plurality of such elements, unless otherwise required by the context.

[0088] Although the preferred embodiments of the application have been described, those skilled in the art will recognize that many modifications and variations of the described implementation can be made without departing from the spirit or scope of the application. Accordingly, it is intended that all such modifications and variations be included within the scope of the following claims and the scope of the application.

[0089] Obviously, many modifications and variations of the present application are possible in light of the above teachings. It is, therefore, to be understood that within the scope of the appended claims and their equivalents, the application can be practiced otherwise than as specifically described.

[0090] In the present application, unless otherwise clearly specified and limited, the terms "mounting", "connection", "connecting", "fixed", and the like, should be interpreted broadly, for example, can be fixed connection, can also be detachable connection, or integral; can be mechanical connection, can also be electrical connection; can be direct connection, can also be indirect connection through an intermediate medium, can be internal communication of two elements or interaction relationship between two elements. For those skilled in the art, the specific meaning of the above terms in the present application can be understood according to the specific circumstances.

[0091] In the description of the specification, the description of the terms "one embodiment", "some embodiments", "an example", "a specific example", or "some examples" etc. means that the specific features, structures, materials or characteristics described in connection with the embodiment or example are included in at least one embodiment or example of the present application. In the specification, the illustrative description of the above terms should not be understood as necessarily referring to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described can be combined in any suitable manner in one or more embodiments or examples. In addition, the person skilled in the art can combine and combine the different embodiments or examples described in the specification and the features of the different embodiments or examples, without contradiction.

Claims

1. A weighing method for an automatic weighing trash bin, characterized in that: A trash bin based on automatic weighing, comprising: a bin body, a group of pressure sensors, and a controller; The box body is provided with a garbage feeding opening, a supporting longitudinal beam is provided at the front bottom of the box body, and a group of rollers are provided at the rear bottom of the box body. Pressure sensors are provided on the rollers for obtaining weight data of the box body; The pressure sensor is communicatively connected to the controller and is used to collect weight data of the box; The method comprises: Obtaining weight data of the pressure sensor and calculating average weight data M0 of the box; Constructing a weight change curve of the average weight data M0 of the box and the time t according to the dry and wet types of garbage; The corresponding weight change curve is selected according to the dry and wet types of garbage in the box, and the weight change curve is used to determine whether the box is full. If so, the box loading is stopped.

2. The weighing method of the automatic weighing trash bin according to claim 1, characterized in that: The roller sleeve is arranged on the roller pin shaft, and both ends of the roller pin shaft are fixed on the pressure sensor. The pressure sensor is fixed below the opening of the C-shaped part through a fixed locking part, and the non-opening end of the C-shaped part is installed on the rear end bottom of the box body.

3. The weighing method of the automatic weighing trash bin according to claim 1, characterized in that: The roller is mounted on the pressure sensor, both ends of which are fixed on a fixed plate, the fixed plate is fixed below the opening of the C-shaped piece by a fixed locking piece, and the non-opening end of the C-shaped piece is installed on the rear end bottom of the box.

4. The weighing method of the automatic weighing trash bin according to claim 1, characterized in that: A movable wet garbage shovel is provided in the upper part of the box body for moving the wet garbage so that the wet garbage is evenly distributed in the box body.

5. The weighing method of the automatic weighing trash bin according to claim 1, characterized in that: A compressor is provided below the garbage feeding opening of the box body, the feed port of the compressor faces the garbage feeding opening, and the discharge port of the compressor faces the box body, and is used for compressing the solid garbage fed from the garbage feeding opening.

6. The weighing method of the automatic weighing trash bin according to claim 1, characterized in that: The weight change curve associated with the average weight data M0 of the box and time t is constructed according to the dry and wet types of garbage, including: Constructing a dry garbage weight change curve based on the relationship between the average weight data M0 of the box body per unit time t and the number of dry garbage compression times n; A wet garbage weight change curve is constructed based on the relationship between the average weight data M0 of the box and time t.

7. The weighing method of the automatic weighing trash bin according to claim 1 or 6, characterized in that: The determining whether the box is full according to the weight change curve and stopping the packing if the box is full includes: If the average weight data M0 on the dry garbage weight change curve changes less than 0 for several consecutive times per unit time t, a stop packing signal is sent.

8. The weighing method of the automatic weighing trash bin according to claim 7, characterized in that: Before sending the stop packing signal: It is determined whether the average weight data M0 is within the garbage bridge weight threshold. If so, an early warning signal is sent; otherwise, a stop packing signal is sent.

9. The weighing method of an automatic weighing trash bin according to claim 1 or 6, characterized in that: The determining whether the box is full according to the weight change curve and stopping the packing if the box is full includes: Obtain the average weight data M0 of the wet garbage weight change curve with a weight change of 1 per unit time, mark it as the stable wet garbage weight, and determine whether the stable wet garbage weight exceeds 90% of the garbage weight that the box can bear. If so, send a stop packing signal.

10. The weighing method of the automatic weighing trash bin according to claim 9, characterized in that: The unit time is 0.1-1 ms.

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