CN113281307A - Intelligent pop can identification and recovery device and method based on visible light communication - Google Patents
Intelligent pop can identification and recovery device and method based on visible light communication Download PDFInfo
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- CN113281307A CN113281307A CN202110405725.9A CN202110405725A CN113281307A CN 113281307 A CN113281307 A CN 113281307A CN 202110405725 A CN202110405725 A CN 202110405725A CN 113281307 A CN113281307 A CN 113281307A
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- 238000011084 recovery Methods 0.000 title claims abstract description 27
- 238000000034 method Methods 0.000 title claims abstract description 21
- 238000004891 communication Methods 0.000 title claims abstract description 19
- 239000000463 material Substances 0.000 claims abstract description 11
- 238000012544 monitoring process Methods 0.000 claims abstract description 10
- 238000004064 recycling Methods 0.000 claims description 16
- 230000008859 change Effects 0.000 claims description 11
- 238000010586 diagram Methods 0.000 claims description 9
- 230000004044 response Effects 0.000 claims description 6
- 230000003287 optical effect Effects 0.000 claims description 5
- HBBGRARXTFLTSG-UHFFFAOYSA-N Lithium ion Chemical compound [Li+] HBBGRARXTFLTSG-UHFFFAOYSA-N 0.000 claims description 3
- 230000001678 irradiating effect Effects 0.000 claims description 3
- 229910001416 lithium ion Inorganic materials 0.000 claims description 3
- 238000012856 packing Methods 0.000 claims description 3
- 229920000642 polymer Polymers 0.000 claims description 3
- 238000012545 processing Methods 0.000 claims description 3
- 238000004140 cleaning Methods 0.000 claims 1
- 238000005516 engineering process Methods 0.000 abstract description 5
- 230000008901 benefit Effects 0.000 abstract description 2
- 238000012986 modification Methods 0.000 description 3
- 230000004048 modification Effects 0.000 description 3
- 229910052782 aluminium Inorganic materials 0.000 description 2
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 2
- 238000005406 washing Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 239000011521 glass Substances 0.000 description 1
- 229910052751 metal Inorganic materials 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 230000008569 process Effects 0.000 description 1
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N21/00—Investigating or analysing materials by the use of optical means, i.e. using sub-millimetre waves, infrared, visible or ultraviolet light
- G01N21/17—Systems in which incident light is modified in accordance with the properties of the material investigated
- G01N21/55—Specular reflectivity
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Abstract
The invention discloses an intelligent identification and recovery device and method for pop cans based on visible light communication, wherein the device comprises an initialization configuration module, a light information acquisition module, a processor and a pop can recovery module, the configuration is simple, the cost is low, monitoring equipment, expensive radio frequency identification technologies such as RFID (radio frequency identification) and the like are not required, the pop cans are accurately identified only by an infrared LED lamp without influencing human eyes and a low-cost photodiode through the difference of reflection light intensity of different materials, the recovery module for the pop cans is skillfully designed, the identified pop cans are further processed, and the efficient recovery of the pop cans is finally realized; the method has the advantages of high accuracy of identifying the pop cans, low cost, high efficiency and reliability.
Description
Technical Field
The invention relates to the field of recollection energy identification, in particular to an intelligent identification and recovery device and method for pop cans based on visible light communication.
Background
The recovered cans are a main source of aluminum used in aluminum foundries and the like, and are also a main industry. The yield of the pop cans in China is high every year, and the efficient recovery of the pop cans can create higher economic benefit. However, the pop can, as a recyclable energy source, has a serious problem in recycling. The main reason is that the pop can is usually mixed with other metal or glass materials, the manual picking is time-consuming and labor-consuming, and at the same time, no better pop can recovery method exists at present. Therefore, how to accurately identify the pop can is a problem which needs to be solved urgently but is difficult to solve.
At present, identification measures for pop cans are few and cumbersome, and computer vision technology is mainly used for comparing external representations of the pop cans. However, since the cans are soft and easily deformed by being squeezed, the accuracy of monitoring the cans using the computer vision technology is low and the cost is high. In addition, there is a technology of distinguishing a can using an RFID tag, but it is necessary to attach an RFID tag to all recycled materials, which is time-consuming and labor-consuming, and the cost of the tag is a considerable problem, and the high cost of the RFID itself is unavoidable.
Disclosure of Invention
Aiming at the technical defects, the invention aims to provide the intelligent identification and recovery device and method for the pop-top can based on visible light communication, which not only can accurately sort the pop-top can from the recovered material, but also can further clean and pack the sorted pop-top can, so that the efficient and reliable recovery of the pop-top can is realized, the technical configuration is simple, the monitoring is accurate, the time and the labor are saved, and the device and method are efficient and reliable.
In order to solve the technical problems, the invention adopts the following technical scheme:
the invention provides a pop can intelligent identification and recovery device based on visible light communication, which comprises an initialization configuration module, an optical information acquisition module, a processor and a pop can recovery module, wherein the initialization configuration module is used for acquiring optical information;
the initialization configuration module comprises a power supply device and a conveyor belt for conveying the pop cans in real time;
the optical information acquisition module comprises an infrared LED lamp for irradiating the pop can and a photodiode for acquiring infrared light reflected by the pop can and converting the infrared light into a voltage value;
the processor is used for receiving the voltage value acquired by the photodiode, processing the voltage value to obtain a light intensity value, and finally comparing the light intensity value with a preset threshold value to judge and identify the pop can;
the pop can recycling module comprises a pusher used for pushing pop cans to the pop can recycling bin, a recycling bin used for recycling non-pop can materials, a counter used for judging the number of the pushed pop cans, a shredder used for shredding the pop cans into strips, a vortex washer used for washing the shredded pop cans and a briquetting machine used for packing and briquetting the shredded and washed pop cans.
The photoelectric diode is electrically connected with the infrared LED lamp, and the photoelectric diode and the infrared LED lamp are respectively electrically connected with the processor.
Preferably, the transport speed of the conveyor belt is less than or equal to more than 1 m/s.
Preferably, the distance interval between the photodiode and the pusher is the transportation speed of the conveyor belt multiplied by the response time of the processor for identifying the cans.
Preferably, the infrared LED lamp emits infrared light invisible to the human eye and has a wavelength of 940 nm.
Preferably, the photodiode is an ultra-high response photodiode.
Preferably, the power supply device is an ultra-high capacity polymer lithium ion rechargeable battery.
The invention also provides an intelligent pop can identification and recovery method based on visible light communication, which comprises the following steps:
a) the conveying belt conveys the conveyed materials to the position of the infrared LED lamp, and the light of the infrared LED lamp irradiates an object below the infrared LED lamp;
b) the photodiode senses the reflected light with different intensities, correspondingly different voltage changes of the photodiode can be caused, the light intensity sensed by the photodiode and the voltage of the photodiode are in a direct proportion relation, and the higher the light intensity is, the higher the voltage of the photodiode 3 is;
c) the processor collects the voltage value fed back by the photodiode in real time and converts the voltage value into a light intensity value, and simultaneously draws a light intensity change waveform diagram; the light rays with different intensities irradiate the photodiode, the photodiode can generate voltages with different intensities, then the processor is used for collecting the voltage of the photodiode in real time, and the voltage of the photodiode is in direct proportion to the sensed light intensity, so that the drawn voltage graph can be regarded as a light intensity graph;
d) the processor judges whether the object reflecting light is a pop can or not by a light intensity value monitoring method.
The light intensity value monitoring method comprises the following specific steps:
d1. the current voltage value of the photodiode is in direct proportion to the intensity of infrared light irradiated on the photodiode, and the processor draws a light intensity change waveform diagram through the change of the voltage value;
d2. storing the reflected light intensity values of different types of pop cans in a processor in advance, setting the reflected light intensity of a pop can manufacturer i to be LiWherein i is 1,2,3.. n;
d3. because the current of the photodiode is not only related to the reflected light intensity, but also related to the internal noise of the photodiode, the pre-collected pop can reflected light intensity value has certain deviation with the actual collection, and therefore, a threshold value for judging whether the light intensity value of the pop can i is set to be Pi LIn which P isi LThe value range is as follows:
i.e. the allowed light intensity value fluctuates by an error range of 10% of the original light intensity value.
The invention has the beneficial effects that: the invention has simple technical configuration and low cost, does not need to rely on monitoring equipment, expensive RFID and other radio frequency identification technologies, and only needs to accurately identify the pop can through the infrared LED lamp which does not affect human eyes and a low-cost photodiode and through the difference of the reflected light intensity of different materials. In addition, the invention also skillfully designs the pop can recovery module, further processes the identified pop can, and finally realizes the high-efficiency recovery of the pop can.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the drawings without creative efforts.
Fig. 1 is a schematic structural diagram of an intelligent identification and recovery device and method for pop cans based on visible light communication according to an embodiment of the present invention;
fig. 2 is a flowchart of an intelligent identification and recovery method for pop cans based on visible light communication according to an embodiment of the present invention;
fig. 3 is a waveform diagram of light intensity change when there is no can in accordance with the embodiment of the present invention;
fig. 4 is a waveform diagram of light intensity change when a can is present according to an embodiment of the present invention.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
As shown in fig. 1 to 2, an intelligent identification and recovery device for pop-top cans based on visible light communication comprises an initialization configuration module, a light information acquisition module, a processor and a pop-top can recovery module;
the initialization configuration module comprises a power supply device and a conveyor belt 1 for conveying the pop cans in real time;
the optical information acquisition module comprises an infrared LED lamp 2 for irradiating the pop can and a photodiode 3 for acquiring infrared light reflected by the pop can and converting the infrared light into a voltage value;
the processor is used for receiving the voltage value acquired by the photodiode 3, processing the voltage value to obtain a light intensity value, and finally comparing the light intensity value with a preset threshold value to judge and identify the pop can;
the pop can recycling module comprises a pusher 6 used for pushing pop cans to a pop can recycling box 5, a recycling box 11 used for recycling non-pop can materials, a counter 7 used for judging the number of the pushed pop cans, a shredder 8 used for shredding the pop cans into strips, a vortex washer 9 used for washing the shredded pop cans and a briquetting machine 10 used for packing and briquetting the shredded and washed pop cans.
The photodiode 3 is electrically connected with the infrared LED lamp 2, and the photodiode 3 and the infrared LED lamp 2 are respectively electrically connected with the processor.
The transport speed of the conveyor belt 1 is less than or equal to more than 1 m/s.
The distance interval between the photodiode 3 and the pusher 6 is the transportation speed of the conveyor belt 1 multiplied by the response time of the processor for identifying the pop cans.
The infrared LED lamp 2 emits infrared light invisible to human eyes and has a wavelength of 940 nm.
The photodiode 3 is an ultrahigh response photodiode.
The power supply device is an ultra-high capacity polymer lithium ion rechargeable battery.
The invention also provides an intelligent pop can identification and recovery method based on visible light communication, which comprises the following steps:
a) the conveying belt 1 conveys the conveyed materials to the position of the infrared LED lamp 2, and the light of the infrared LED lamp 2 irradiates an object below the infrared LED lamp;
b) the photodiode 3 senses reflected light of different intensities and accordingly causes different voltage variations of the photodiode. The light intensity sensed by the photodiode and the voltage of the photodiode 3 are in a direct proportion relation, and the higher the light intensity is, the higher the voltage of the photodiode 3 is;
c) the processor collects the voltage value fed back by the photodiode 3 in real time and converts the voltage value into a light intensity value, and simultaneously draws a light intensity change waveform diagram;
d) the processor judges whether the object reflecting light is a pop can or not by a light intensity value monitoring method.
Referring to fig. 3 and 4, the light intensity value of fig. 3 is obviously lower than that of fig. 4 with a can when no can is present.
The light intensity value monitoring method comprises the following specific steps:
d1. the current voltage value of the photodiode 3 is in direct proportion to the intensity of infrared light irradiated on the photodiode 3, and the processor draws a light intensity change waveform diagram through the change of the voltage value;
d2. storing the reflected light intensity values of different types of pop cans in a processor in advance, setting the reflected light intensity of a pop can manufacturer i to be LiWherein i is 1,2,3.. n;
d3. because the current of the photodiode 3 is not only related to the reflected light intensity, but also related to the internal noise of the photodiode 3, the pre-collected pop can reflected light intensity value has a certain deviation from the actual collected light intensity value, and therefore, the threshold value for judging whether the light intensity value of the pop can i is set to be Pi LIn which P isi LThe value range is as follows:
i.e. the allowed light intensity value fluctuates by an error range of 10% of the original light intensity value.
It will be apparent to those skilled in the art that various changes and modifications may be made in the present invention without departing from the spirit and scope of the invention. Thus, if such modifications and variations of the present invention fall within the scope of the claims of the present invention and their equivalents, the present invention is also intended to include such modifications and variations.
Claims (8)
1. An intelligent identification and recovery device for pop cans based on visible light communication is characterized by comprising an initialization configuration module, a light information acquisition module, a processor and a pop can recovery module;
the initialization configuration module comprises a power supply device and a conveyor belt (1) for conveying the pop cans in real time;
the optical information acquisition module comprises an infrared LED lamp (2) for irradiating the pop can and a photodiode (3) for acquiring infrared light reflected by the pop can and converting the infrared light into a voltage value;
the processor is used for receiving the voltage value acquired by the photodiode (3), processing the voltage value to obtain a light intensity value, and finally comparing the light intensity value with a preset threshold value to judge and identify the pop can;
the pop can recycling module comprises a pusher (6) used for pushing pop cans to a pop can recycling box (5), a recycling box (11) used for recycling non-pop can materials, a counter (7) used for judging the number of the pushed pop cans, a shredder (8) used for shredding the pop cans into strips, a vortex washer (9) used for cleaning the shredded pop cans and a briquetting machine (10) used for packing and briquetting the shredded and cleaned pop cans;
the photodiode (3) is electrically connected with the infrared LED lamp (2), and the photodiode (3) and the infrared LED lamp (2) are respectively electrically connected with the processor.
2. The intelligent identification and recovery device for the pop cans based on the visible light communication as claimed in claim 1, wherein the transportation speed of the conveyor belt (1) is less than or equal to and exceeds 1 m/s.
3. The intelligent pop can identifying and recycling device based on visible light communication as claimed in claim 1, wherein the distance interval between the photodiode (3) and the pusher (6) is the transportation speed of the conveyor belt (1) multiplied by the response time of the processor for identifying the pop can.
4. The intelligent identifying and recycling device for the pop-top can based on visible light communication as claimed in claim 1, wherein the infrared LED lamp (2) emits infrared light invisible to human eyes and has a wavelength of 940 nm.
5. The intelligent identifying and recycling device for the pop cans based on the visible light communication as claimed in claim 1, wherein the photodiode (3) is an ultrahigh response photodiode.
6. The intelligent visible light communication-based pop can identification and recovery device as claimed in claim 1, wherein the power supply device is an ultra-high capacity polymer lithium ion rechargeable battery.
7. An intelligent pop can identification and recovery method based on visible light communication is characterized by comprising the following steps:
a) the conveying belt (1) conveys the conveyed materials to the position of the infrared LED lamp (2), and the light of the infrared LED lamp (2) irradiates an object below the conveying belt;
b) the photodiode (3) senses the reflected light with different intensities, correspondingly different voltage changes of the photodiode can be caused, the light intensity sensed by the photodiode and the voltage of the photodiode (3) are in a direct proportion relation, and the higher the light intensity is, the higher the voltage of the photodiode (3) is;
c) the processor collects the voltage value fed back by the photodiode (3) in real time and converts the voltage value into a light intensity value, and simultaneously draws a light intensity change waveform diagram;
d) the processor judges whether the object reflecting light is a pop can or not by a light intensity value monitoring method.
8. The intelligent identification and recovery method for the pop cans based on the visible light communication as claimed in claim 7, wherein the light intensity value monitoring method comprises the following specific steps:
d1. the current voltage value of the photodiode (3) is in direct proportion to the intensity of infrared light irradiated on the photodiode (3), and a light intensity change waveform diagram is drawn by the processor through the change of the voltage value;
d2. storing the reflected light intensity values of different types of pop cans in a processor in advance, setting the reflected light intensity of a pop can manufacturer i to be LiWherein i is 1,2,3.. n;
d3. because the current of the photodiode (3) is not only related to the reflected light intensity, but also related to the internal noise of the photodiode (3), the reflected light intensity value of the pop can collected in advance has certain deviation with the actual collected light intensity value, and therefore the threshold value for judging whether the light intensity value of the pop can i is set to be Pi LIn which P isi LThe value range is as follows:
i.e. the allowed light intensity value fluctuates by an error range of 10% of the original light intensity value.
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Application publication date: 20210820 |