Visual analysis-based perishable waste identification device

Abstract

This invention relates to the field of waste detection technology, specifically to a visual analysis-based device for identifying perishable waste. It includes a waste bin, a detection device, a conveying device, and a pushing device. Two sets of detection devices are positioned above the conveying device. The waste bin has an inlet on one side, with a guide plate inside the inlet. Above the conveying device at the end of the guide plate is a settling box for holding waste, and a liquid collection box is fixedly positioned below the settling box. A filter screen separates the solid and liquid components in the waste. During the settling and water-controlling stage, a water pipe guides the liquid from the collection area into an air supply chamber. When the liquid weight accumulates to a preset weight, the liquid pressurizes the air supply plate, and the air-driven resistance plate rises, lifting the waste above the filter screen. This, combined with the reciprocating movement of the conveying device and the peeling action of the peeling mechanism, enables the detection of waste at different depths, improving the accuracy and efficiency of waste sorting.

Description

Technical Field

[0001] This invention relates to the field of waste detection technology, and more specifically, to a visual analysis-based device for identifying perishable waste. Background Technology

[0002] With the development of urban society and economy, the composition of household waste has changed accordingly with the changes in consumption structure. However, it still exhibits significant characteristics such as high organic matter content, high water content, and low calorific value of mixed waste. Perishable waste can account for as much as 70% of household waste. Perishable waste mainly refers to easily perishable and biodegradable waste generated during food processing and consumption, including: kitchen waste generated by canteens, hotels, restaurants, etc., and vegetable and fruit waste, rotten meat, meat scraps and bones, eggshells, and offal from livestock and poultry products generated by farmers' markets and agricultural wholesale markets.

[0003] Chinese Patent Publication No. CN207188258U discloses a perishable waste identification device, comprising a main body, within which a conveying device, a detection device, and a controller are installed. The outer wall of the main body has at least two outlets and at least one inlet. The outer walls of the main body at both ends of the conveying device have a first inlet and a first outlet, respectively, and a second outlet is located on an adjacent outer wall of the main body. The second outlet is connected to the conveying device via a second outlet channel. A limiting device and a pushing device are located at the intersection of the conveying device and the second outlet channel. The detection device is positioned above the conveying device. The controller is connected to the detection device, the conveying device, the limiting device, and the pushing device. This device separates bags containing less perishable waste by detecting the perishable waste within them, thus achieving the purpose of waste sorting.

[0004] In daily life, people often mix perishable waste with liquid waste (such as bottles and cans) in garbage bags, or mix food broth with perishable waste. When the liquid in the bottles and cans is poured out, the garbage bag will contain more liquid and less perishable waste. The liquid affects the recognition effect of the detection device. In addition, most people dump the garbage bag into the garbage bin at once, which can easily cause accumulation on the conveyor. The garbage below the accumulation cannot be identified and classified. Summary of the Invention

[0005] This invention provides a visual analysis-based perishable waste identification device. It utilizes a filter to separate solids and liquids in the waste. During the static water control stage, a water supply pipe directs liquid from the collection area into an air supply chamber. When the liquid weight accumulates to a preset weight, the liquid pressurizes the air supply plate and, with the aid of air, drives the resistance plate upwards, thereby lifting the waste above the filter. This, combined with the reciprocating movement of the conveying device and the peeling action of the peeling mechanism, solves the problems mentioned in the background art, namely:

[0006] To achieve the above objectives, the visual analysis-based perishable waste identification device includes a waste bin, a detection device, a conveying device, and a pushing device. Two sets of detection devices are installed above the conveying device. The waste bin has an inlet on one side, with a guide plate inside. Above the conveying device at the guide end is a settling box for holding waste. A liquid collection box is fixedly installed below the settling box. A feeder is installed inside the settling box, receiving waste at the top and extending into the liquid collection box at the bottom. The waste is kept still and drained on the feeder. The settling box guides the collected liquid into the liquid collection box. An air supply plate is movably installed inside the liquid collection box. When the liquid weight on the air supply plate reaches a preset weight, the liquid forces the air supply plate to pressurize the air inside the liquid collection box. This air pressure lifts the waste at the top of the feeder, and a peeling mechanism located between the two detection devices peels the lifted waste off the feeder, thus achieving multiple identifications and classifications of accumulated waste.

[0007] The top of the feeder is a filter screen that separates waste from liquid. The bottom of the filter screen has a vertical rod that connects the settling box and the conveying device. The filter screen is movably installed inside the settling box and is used to divide the inside of the settling box into a material collection area and a liquid collection area. The material collection area is used to hold the waste that has been settling with water controlled, and the liquid collection area is used to store the liquid that drips from the waste.

[0008] A water supply pipe is provided at the bottom of the settling box, which connects to the liquid collection area. The bottom of the water supply pipe extends to the top of the air supply plate and transports the liquid in the liquid collection area to its surface so as to apply pressure to the air supply plate by the weight of the liquid.

[0009] The liquid collection box, together with the air supply plates on both sides, forms an air supply chamber to contain the liquid transported from the water pipe.

[0010] The middle part of the liquid collection box is the exhaust chamber, and the exhaust chamber is equipped with a resistance plate fixed to the upright. The exhaust chamber is connected to the air supply chamber by an air supply channel.

[0011] The air supply channel is used to deliver air into the exhaust chamber, thereby forcing the resistance plate to move upward and indirectly pushing the waste upward.

[0012] The stripping mechanism includes a hydraulic rod disposed between the two conveying devices and fixed to the garbage bin, and a stripping plate fixed to the telescopic end of the hydraulic rod. The stripping plate can strip the garbage from the top of the settling box, and the hydraulic rod can adjust the depth at which the stripping plate intercepts the garbage to adapt to the actual situation.

[0013] Compared with the prior art, the beneficial effects of the present invention are as follows:

[0014] The system uses a filter to separate solids and liquids in the waste. During the static water control stage, the water pipe introduces the liquid from the collection area into the air supply chamber. When the liquid weight accumulates to a preset weight, the liquid pressurizes the air supply plate and, with the help of air, drives the resistance plate to move upward, thereby lifting the waste above the filter. This, combined with the reciprocating movement of the conveying device and the peeling action of the peeling mechanism, enables the detection of waste at different depths, improving the accuracy and efficiency of waste sorting. Attached Figure Description

[0015] Figure 1 This is a cross-sectional schematic diagram of the internal structure of the trash can of the present invention;

[0016] Figure 2 This is a schematic diagram illustrating the principle of the guide plate of the present invention conveying waste into the settling box;

[0017] Figure 3 This is a schematic diagram of debris accumulation on the filter screen of the present invention;

[0018] Figure 4 This is a schematic diagram of the waste detection method of the present invention;

[0019] Figure 5 This is a schematic diagram of the connection structure between the settling box and the liquid collection box of the present invention;

[0020] Figure 6 This is a schematic diagram illustrating the principle of the resistance plate moving upwards in this invention;

[0021] Figure 7 This is a top view of the pushing device and its structure according to the present invention.

[0022] The meanings of the labels in the diagram are as follows:

[0023] 100. Trash can; 101. Detection device; 102. Conveying device; 103. Pushing device; 104. Storage box;

[0024] 110. Stripping mechanism; 111. Stripping plate; 112. Hydraulic rod;

[0025] 120. Settling box; 121. Collection area; 122. Liquid collection area; 123. Discharge port; 124. Water supply pipe;

[0026] 130. Feeder; 131. Filter screen; 132. Resistance plate;

[0027] 140. Liquid collection box; 140a. Gas supply chamber; 140b. Exhaust chamber; 141. Gas supply plate; 142. Tension spring; 143. Gas supply channel; 144. Drain pipe. Detailed Implementation

[0028] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0029] When liquid is poured out of the bottle or can, the garbage bag contains more liquid than perishable waste. This liquid affects the recognition performance of the detection device 101. Furthermore, most people dump all the garbage from the garbage bag into the garbage bin 100 at once, which easily leads to accumulation on the conveyor device 102. The garbage below this accumulation cannot be identified and sorted. This invention provides a perishable waste identification device based on visual analysis. See [link to relevant documentation]. Figures 1-3 As shown, the system includes a garbage bin 100, a detection device 101, a conveying device 102, and a pushing device 103. Two sets of detection devices 101 are mounted above the conveying device 102. The garbage bin 100 has an inlet on one side, with a guide plate inside the inlet. Above the conveying device 102 at the end of the guide plate is a settling box 120 for collecting garbage. A collection box 140 is fixedly mounted below the settling box 120. A feeder 130 is installed inside the settling box 120. The top of the feeder 130 receives garbage from the guide plate, and the bottom extends into the collection box 140. Water is controlled and allowed to settle on the feeder 130. The settling box 120 is responsible for guiding the collected liquid to the collection box 140. An air supply plate 141 is movably installed in the collection box 140. When the liquid weight on the air supply plate 141 reaches a preset weight, the liquid drives the air supply plate 141 to press the air in the collection box 140. With the help of air pressure, the garbage at the top of the feeder 130 is raised. After being identified by the detection device 101, the peeling mechanism 110 set between the two detection devices 101s will peel the raised garbage off the feeder 130, thereby realizing multiple identification and classification of accumulated garbage.

[0030] First, the entire system is controlled via a smart panel. The general process of waste detection is as follows: Under normal conditions, the settling box 120 is moved to a position via the winding devices at both ends of the conveyor 102. Figure 2 The state shown is such that the end of the guide plate is inside the settling box 120, and the conveying device 102 moves to the left following the waste sliding in on the guide plate, so that the waste can evenly cover the top of the feeder 130. When the end of the guide plate detaches from the settling box 120, the settling box 120 moves to the right detection area, while the other side is the left detection area; at this time, combined with Figure 4As shown, the settling box 120 is located in the left detection area. The movement of the settling box 120 is as follows: it is first detected in the right detection area, and then it moves to the left detection area for detection. During the process of the settling box 120 moving from the right to the left, the peeling mechanism 110 peels off part of the waste on the feeder 130, as detailed below:

[0031] Return to Figure 2 As shown, the top of the feeder 130 is a filter screen 131 that separates waste from liquid. The bottom of the filter screen 131 has a vertical rod that passes through the settling box 120 and the conveying device 102. The filter screen 131 is movably installed inside the settling box 120 and is used to divide the interior of the settling box 120 into a material collection area 121 and a liquid collection area 122. When waste slides down the guide to the settling box 120, the conveying device 102 drives the settling box 120 to move to the left. The material collection area 121 is used to hold the waste that has been settling and drained, while the liquid collection area 122 is used to store the liquid dripping from the waste. That is, the waste is evenly spread on the filter screen 131 and settling and drained, while the liquid flows through the filter screen 131 into the liquid collection area 122. This process is a solid-liquid separation process.

[0032] In order to transport the collected liquid in the collection area 122 to the collection box 140, the following steps are combined with... Figure 5 , Figure 6 As shown, a water supply pipe 124 communicating with the liquid collection area 122 is provided at the bottom of the settling box 120. The bottom of the water supply pipe 124 extends above the air supply plate 141 and transports the liquid in the liquid collection area 122 to its surface, so that the weight of the liquid applies pressure to the air supply plate 141. At the same time, the weight of the liquid drives the air supply plates 141 on both sides of the liquid collection box 140 to move downward. Then, on the other hand, the two sides of the liquid collection box 140, together with the air supply plates 141, form an air supply chamber 140a to contain the liquid transported from the water supply pipe 124. In this way, the liquid guided to the liquid collection box 140 by the water supply pipe 124 is collected in the air supply chamber 140a, and the middle of the liquid collection box 140 is... The exhaust chamber 140b is equipped with a resistance plate 132 fixed to the upright. The exhaust chamber 140b is connected to the air supply chamber 140a by an air supply channel 143. When the weight of the liquid in the two air supply chambers 140a reaches the preset weight (that is, the pressure of the liquid on the air supply plate 141 can force the resistance plate 132 to move upward, and at the same time lift the garbage upward), the air supply plate 141 gradually presses the air in the air supply chamber 140a downward to deliver air to the air supply channel 143. The air supply channel 143 is used to deliver air to the exhaust chamber 140b, so as to force the resistance plate 132 to move upward and indirectly push the garbage upward, thereby using air to push the resistance plate 132 upward.

[0033] Specifically in work (in combination) Figures 2-6 As shown): When the settling box 120 moves to Figure 2When the waste is detected in the right-side detection zone, it is in a static water control stage on the filter screen 131. Solid-liquid separation is achieved under the action of the filter screen 131. The liquid is introduced into the air supply chamber 140a for storage through the water supply pipe 124. When the weight of the liquid in the air supply chamber 140a reaches the preset weight, the liquid weight drives the air supply plate 141 to apply pressure. The air supply plate 141 uses air to push the resistance plate 132 upward. That is, the filter screen 131 pushes the waste upward. Then, it is identified by the right-side detection device 101. The detection device 101 collects and identifies the waste image, calculates the proportion of perishable waste in the whole and compares it with the set threshold. If it exceeds the set threshold, it is activated. Figure 1 The stripping mechanism 110 in the middle;

[0034] The stripping mechanism 110 includes a hydraulic rod 112 disposed between the two conveying devices 102 and fixed to the garbage bin 100, and a stripping plate 111 fixed to the telescopic end of the hydraulic rod 112. The stripping plate 111 can strip the garbage from the top of the settling box 120, and the hydraulic rod 112 can adjust the depth at which the stripping plate 111 intercepts the garbage to adapt to the actual situation. The height of the stripping plate 111 can be adjusted by the hydraulic rod 112 to strip the garbage that has been detected.

[0035] Combination Figure 3 As shown, there are discharge ports 123 on both sides of the top of the settling box 120 for discharging waste. When the waste on the filter screen 131 is pushed out, it is detected by the right-side detection device 101. The conveying device 102 moves the settling box 120 to the left-side detection area. Under the interception of the peeling plate 111, the waste on the top of the filter screen 131 is peeled onto the conveying device 102. Figure 4 As shown in the image, the location of the intercepted trash is as follows: Figure 7 As shown, a storage box 104 for sorting and storing garbage is provided inside the garbage bin 100. The storage box 104 has several compartments, and each compartment has a set of pushing devices 103 on the opposite side. That is, if the proportion of perishable garbage intercepted exceeds a set threshold, the garbage on the conveyor 102 is pushed to the corresponding compartment for storage by the corresponding pushing device 103.

[0036] Furthermore, as the settling box 120 moves to the left detection area, the weight of the debris on the filter screen 131 decreases, and the water control process continues. The debris on the filter screen 131 rises again and is detected by the left detection device 101, which operates on the same principle as the right detection device (details omitted here). After detection, the conveying device 102 moves the settling box 120 to the right, and the peeling plate 111 peels off a portion of the debris. The peeled-off debris then... Figure 7The pusher 103, located in the middle, pushes the garbage into the corresponding compartment according to the detection results. The leftmost compartment in the storage box 104 contains garbage whose proportion does not exceed the set threshold. That is, the garbage on the filter screen 131 is gradually removed from the filter screen 131 by the conveyor 102, which drives the stationary box 120 to move left and right.

[0037] In other words, the filter screen 131 is used to separate the solid and liquid in the garbage. When the garbage is in the static water control stage, the water supply pipe 124 introduces the liquid in the liquid collection area 122 into the air supply chamber 140a. When the weight of the liquid accumulates to the preset weight, the liquid applies pressure to the air supply plate 141 and drives the resistance plate 132 to move upward with the help of air, so as to lift the garbage above the filter screen 131. This, together with the reciprocating movement of the conveying device 102 and the peeling action of the peeling mechanism 110, enables the detection of garbage at different depths, thereby improving the accuracy and efficiency of garbage sorting.

[0038] It is worth noting that, since the air supply plate 141 is elastically connected to the inner wall of the air supply chamber 140a by a tension spring 142, and the bottom of the air supply plate 141 is connected to a drain pipe 144 that passes through the liquid collection box 140, the drain pipe 144 is used to drain the liquid on the air supply plate 141 from the air supply chamber 140a at the end of the test.

[0039] After the test is completed, the liquid accumulated on the air supply plate 141 is discharged by opening the valve on the drain pipe 144 (not shown in the figure). This valve can be an electric valve, which is existing technology. Under the elastic action of the tension spring 142, the air supply plate 141 is pulled upward to reset.

[0040] The foregoing has shown and described the basic principles, main features, and advantages of the present invention. Those skilled in the art should understand that the present invention is not limited to the above embodiments. The embodiments and descriptions in the specification are merely preferred examples and are not intended to limit the invention. Various changes and modifications can be made to the invention without departing from its spirit and scope, and all such changes and modifications fall within the scope of the present invention as claimed. The scope of protection of the present invention is defined by the appended claims and their equivalents.

Claims

1. A visual analysis-based perishable waste identification device, comprising a waste bin (100), a detection device (101), a conveying device (102), and a pushing device (103), wherein, Two sets of detection devices (101) are provided above the conveying device (102). The garbage bin (100) has a feed inlet on one side, and a guide plate is arranged inside the feed inlet. The feature is that: a settling box (120) for holding garbage is provided above the conveying device (102) located at the end of the guide plate. A liquid collection box (140) is fixedly provided below the settling box (120). A feeder (130) is provided inside the settling box (120). The top of the feeder (130) receives garbage, and the bottom extends into the liquid collection box (140). The garbage is controlled to settle on the feeder (130). The settling box (120) is responsible for guiding the collected liquid to the collection box (140). An air supply plate (141) is movably installed in the collection box (140). When the weight of the liquid on the air supply plate (141) reaches a preset weight, the liquid drives the air supply plate (141) to press the air in the collection box (140). With the help of air pressure, the garbage height at the top of the feeder (130) is raised. The peeling mechanism (110) set between the detection devices (101) on both sides peels the raised garbage off the feeder (130), thereby realizing multiple identification and classification of accumulated garbage. The top of the feeder (130) is a filter screen (131) that separates waste from liquid. The bottom of the filter screen (131) has a vertical rod that passes through the settling box (120) and the conveying device (102). The filter screen (131) is movably installed in the settling box (120) and is used to divide the interior of the settling box (120) into a material collection area (121) and a liquid collection area (122). The material collection area (121) is used to hold the waste that has been settling with water control, and the liquid collection area (122) is used to store the liquid that drips from the waste. A water supply pipe (124) is provided at the bottom of the settling box (120) to connect the liquid collection area (122). The bottom of the water supply pipe (124) extends to the top of the air supply plate (141) and transports the liquid in the liquid collection area (122) to its surface so as to apply pressure to the air supply plate (141) by the weight of the liquid. The middle part of the liquid collection box (140) is the exhaust chamber (140b), and the exhaust chamber (140b) is equipped with a resistance plate (132) fixed to the upright. The liquid collection box (140) is formed by air supply plates (141) on both sides to form an air supply chamber (140a) for accommodating liquid transported from the water pipe (124). The exhaust chamber (140b) and the air supply chamber (140a) are connected by an air supply channel (143). The air supply channel (143) is used to deliver air into the exhaust chamber (140b) to force the resistance plate (132) to move upward and indirectly push the garbage upward; The stripping mechanism (110) includes a hydraulic rod (112) disposed between the two conveying devices (102) and fixed to the garbage bin (100), and a stripping plate (111) fixed to the telescopic end of the hydraulic rod (112). The stripping plate (111) can strip the garbage from the top of the settling box (120), and the hydraulic rod (112) can adjust the depth at which the stripping plate (111) intercepts the garbage to adapt to the actual situation.

2. The visual analysis-based perishable waste identification device according to claim 1, characterized in that: The top two sides of the settling box (120) have discharge ports (123) for discharging waste.

3. The visual analysis-based perishable waste identification device according to claim 1, characterized in that: A tension spring (142) is elastically connected to the inner wall of the air supply plate (141) and the air supply chamber (140a). The bottom of the air supply plate (141) is connected to a drain pipe (144) that passes through the liquid collection box (140). The drain pipe (144) is used to drain the liquid on the air supply plate (141) from the air supply chamber (140a) at the end of the test.

4. The visual analysis-based perishable waste identification device according to claim 1, characterized in that: Inside the trash can (100) is a storage box (104) for sorting and storing trash. The storage box (104) has several compartments, and each compartment has a set of pushing devices (103) on the opposite side.

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