CN215708957U - Garbage detection circuit and garbage can - Google Patents
Garbage detection circuit and garbage can Download PDFInfo
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- CN215708957U CN215708957U CN202121863935.4U CN202121863935U CN215708957U CN 215708957 U CN215708957 U CN 215708957U CN 202121863935 U CN202121863935 U CN 202121863935U CN 215708957 U CN215708957 U CN 215708957U
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Abstract
The utility model provides a garbage detection circuit and a garbage can, wherein the garbage detection circuit comprises a weight detection circuit, a metal detection circuit, a main controller and an upper computer; the output end of the weight detection circuit is connected with the first input end of the main controller, the output end of the metal detection circuit is connected with the second input end of the main controller, and the main controller is in communication connection with the upper computer. According to the technical scheme, the quantity of the garbage and the quantity of the metal in the garbage can be detected, so that garbage classification is facilitated.
Description
Technical Field
The utility model relates to the technical field of garbage detection, in particular to a garbage detection circuit and a garbage can.
Background
At present, common garbage cans on the market are conventional garbage cans and only can be used for loading garbage, the garbage cans do not have the function of detecting the weight of the garbage in the garbage cans, and whether recyclable objects such as metal exist in the garbage cans or not can not be judged, so that garbage classification is not facilitated.
SUMMERY OF THE UTILITY MODEL
The utility model provides a garbage detection circuit and a garbage can, which can detect the weight and metal of garbage in the garbage can so as to be beneficial to garbage classification.
In order to achieve the purpose, the utility model provides a garbage detection circuit, which comprises a weight detection circuit, a metal detection circuit, a main controller and an upper computer;
the output end of the weight detection circuit is connected with the first input end of the main controller, the output end of the metal detection circuit is connected with the second input end of the main controller, and the main controller is in communication connection with the upper computer.
Optionally, the metal detection circuit includes a pulse transmitting circuit and a pulse receiving circuit;
the input end of the pulse transmitting circuit is connected with the output end of the main controller so as to receive a pulse signal output by the main controller, and the output end of the pulse transmitting circuit is connected with the input end of the pulse receiving circuit through a coil.
Optionally, the pulse transmitting circuit includes an optical coupling module, a push-pull circuit, an isolation protection circuit, and a switching circuit;
the first end of the optical coupling module is connected with a first power supply, the second end of the optical coupling module is connected with the output end of the main controller, the third end of the optical coupling module is grounded, and the fourth end of the optical coupling module is connected with the input end of the push-pull circuit;
the output end of the push-pull circuit is connected with the input end of the isolation protection circuit, and the output end of the isolation protection circuit is connected with the first end of the switch circuit;
the second end of the switch circuit is connected with the input end of the pulse receiving circuit through the coil, and the third end of the switch circuit is grounded.
Optionally, the push-pull circuit includes a first resistor, a second resistor, a third resistor, a first diode, a first transistor, a second transistor, and a third transistor;
one end of the first resistor is connected with the fourth end of the optocoupler module, and the other end of the first resistor is connected with one end of the second resistor, the first end of the first transistor and the negative electrode of the first diode; the other end of the second resistor, the second end of the first transistor and the second end of the second transistor are connected with a second power supply;
the third end of the first transistor is connected with the anode of the first diode, the first end of the second transistor and the first end of the third transistor through the third resistor;
and the third end of the second transistor and the second end of the third transistor are both connected with the input end of the isolation protection circuit, and the second end of the third transistor is grounded.
Optionally, the isolation protection circuit includes a fourth resistor and a second diode;
one end of the fourth resistor and the negative electrode of the second diode are both connected with the output end of the push-pull circuit, and the other end of the fourth resistor and the positive electrode of the second diode are both connected with the first end of the switch circuit.
Optionally, the switching circuit includes an N-MOS transistor;
the grid electrode of the N-MOS tube is connected with the output end of the isolation protection circuit, the drain electrode of the N-MOS tube is connected with the input end of the pulse receiving circuit through the coil, and the source electrode of the N-MOS tube is grounded.
Optionally, the pulse receiving circuit includes a receiving circuit and an operational amplifier;
the input end of the receiving circuit is connected with the output end of the pulse transmitting circuit through the coil, the output end of the receiving circuit is connected with the input end of the operational amplifier, and the output end of the operational amplifier is connected with the second input end of the main controller.
Optionally, the receiving circuit includes a first capacitor, a third diode, a fourth diode, a fifth resistor, and a sixth resistor;
one end of the first capacitor and the cathode of the third diode are both connected with a second power supply, and the other end of the first capacitor and the anode of the third diode are grounded;
one end of the fifth resistor, the anode of the fourth diode and the cathode of the fifth diode are all grounded; the other end of the fifth resistor is connected with the cathode of the fourth diode, the anode of the fifth diode and the input end of the operational amplifier through the sixth resistor.
In order to achieve the above object, the present invention further provides a garbage can, including the garbage detection circuit as described in any one of the above.
Optionally, the trash can includes:
the garbage can comprises a can body and a garbage can, wherein the can body comprises an outer can and an inner can nested in the outer can, the outer wall of the inner can surrounds a coil, and the inner can is provided with a containing groove capable of containing garbage;
the bottom plate is arranged in the accommodating groove and surrounds the bottom wall and the side wall of the accommodating groove to form an installation cavity, and the garbage detection circuit is arranged in the installation cavity.
According to the technical scheme, the weight of the garbage in the garbage can is detected by arranging the weight detection circuit, the weight of the metal in the garbage can is detected by the metal detection circuit, and when the garbage and/or the metal exist in the garbage can, the weight of the garbage and/or the weight of the metal in the garbage can is uploaded to the upper computer through the main controller, so that the garbage can be classified and recycled by workers.
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 structures shown in the drawings without creative efforts.
FIG. 1 is a block diagram of a garbage detection circuit according to an embodiment of the present invention;
FIG. 2 is a block diagram of an embodiment of the metal detection circuit of FIG. 1;
fig. 3 is a schematic circuit structure diagram of an embodiment of the metal detection circuit in fig. 1.
The reference numbers illustrate:
the implementation, functional features and advantages of the objects of the present invention will be further explained with reference to the accompanying drawings.
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.
It should be noted that, if directional indications (such as up, down, left, right, front, and back … …) are involved in the embodiment of the present invention, the directional indications are only used to explain the relative positional relationship between the components, the movement situation, and the like in a specific posture (as shown in the drawing), and if the specific posture is changed, the directional indications are changed accordingly.
In addition, if there is a description of "first", "second", etc. in an embodiment of the present invention, the description of "first", "second", etc. is for descriptive purposes only and is not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one such feature. In addition, technical solutions between various embodiments may be combined with each other, but must be realized by a person skilled in the art, and when the technical solutions are contradictory or cannot be realized, such a combination should not be considered to exist, and is not within the protection scope of the present invention.
Fig. 1 is a block diagram of a garbage detection circuit according to an embodiment of the present invention.
Referring to fig. 1, the garbage detection circuit includes a weight detection circuit 10, a metal detection circuit 20, a main controller 30, and an upper computer 40; wherein, the output end of the weight detection circuit 10 is connected with the first input end of the main controller 30, the output end of the metal detection circuit 20 is connected with the second input end of the main controller 30, and the main controller 30 is connected with the upper computer 40 in a communication way.
The garbage detection circuit is applied to a garbage can, the garbage can comprises a bottom plate and a barrel body, the barrel body comprises an outer barrel and an inner barrel which is nested in the outer barrel, the outer wall of the inner barrel surrounds a coil, and the inner barrel is provided with a containing groove capable of containing garbage; the bottom plate is arranged in the containing groove of the inner barrel and forms an installation cavity with the bottom wall and the side wall of the containing groove in an enclosing mode, and the garbage detection circuit is arranged in the installation cavity.
The weight detecting circuit 10 may be formed of a weight sensor, which may be disposed below a bottom plate of the garbage can, for detecting the weight of the garbage in the garbage can.
The metal detection circuit 20 is used for detecting whether metal exists in the dustbin and the weight of the metal.
The main controller 30 may be a microprocessor such as a single chip, a DSP, or an FPGA, for example, an STM32F103C8T6 chip.
This host computer 40 and main control unit 30 communication connection, it is specific, this host computer 50 can be connected with main control unit 30 through WIFI module, 4G/5G module or bluetooth module to mutual data. The upper computer 40 may be provided with a display screen for human-computer interaction, such as an LED display screen or an LCD display screen.
The working principle of the garbage detection circuit is as follows: the weight of the garbage in the garbage can is detected in real time through the weight detection circuit 10, and once a person throws the garbage into the garbage can, the weight detection circuit 10 feeds back an electric signal corresponding to the weight of the garbage in the garbage can to the main controller 30. Meanwhile, once the metal objects are present in the garbage within the can, the metal detection circuit 20 feeds back an electric signal corresponding to the weight of the metal within the can to the main controller 30. The main controller 30 analyzes and processes the electric signals fed back by the weight detection circuit 10 and the metal detection circuit 20, and uploads the detection data to the upper computer 40 through the wireless communication module for display, so that the workers can classify and process the garbage in the garbage can, for example, when the weight of the garbage in the garbage can exceeds a preset weight, the workers can be arranged to clean the garbage in the garbage can in time; and when the metal objects exist in the garbage can, the metal objects are recycled, and the like. Therefore, the garbage can is beneficial to the workers to accurately and timely treat the garbage in the garbage can, and the living quality of residents can be greatly improved.
The technical scheme of this embodiment detects the weight of rubbish in the dustbin through setting up weight detection circuit 10 to through the weight of metal in the metal detection circuit 20 detection dustbin, when rubbish exists in the dustbin and/or, upload host computer 30 through main control unit 30 with the weight of rubbish in the dustbin and/or the weight of metal, in order to do benefit to the staff and carry out classification, rubbish recovery to rubbish.
Optionally, referring to fig. 2, in an embodiment, the metal detection circuit 20 includes a pulse transmitting circuit 201 and a pulse receiving circuit 202; the input end of the pulse transmitting circuit 201 is connected to the output end of the main controller 30 to receive the pulse signal output by the main controller 30, and the output end of the pulse transmitting circuit is connected to the input end of the pulse receiving circuit 202 via the coil surrounding the outer wall of the inner cylinder of the garbage can.
Specifically, the main controller 30 continuously outputs a pulse signal, and when the pulse signal is at an effective level, the pulse transmitting circuit 201 is turned on, so that the coil surrounding the outer wall of the inner cylinder of the dustbin is energized to generate a magnetic field, and a pulse signal corresponding to the magnetic field, that is, a current pulse, is generated. The pulse signal generated by the coil is received by the pulse receiving circuit 202 and then transmitted to the main controller 30. Once a metal object exists in the dustbin, the metal object passes through the coil on the outer wall of the inner barrel of the dustbin to cause the magnetic field in the dustbin to change, so that the pulse signal received by the main controller 30 also changes accordingly. Therefore, the main controller 30 can determine the amount of metal in the tank by analyzing the received pulse signal.
Optionally, referring to fig. 3, in an embodiment, the pulse transmitting circuit 201 includes an optical coupling module 2011, a push-pull circuit 2012, an isolation protection circuit 2013, and a switching circuit 2014; wherein the content of the first and second substances,
a first end 1 of the optical coupling module 2011 is connected with a first power supply VCC1, a second end 2 of the optical coupling module 2011 is connected with an output end of the main controller 30, a third end 3 of the optical coupling module 2011 is grounded, and a fourth end 4 of the optical coupling module 2011 is connected with an input end of the push-pull circuit 2012;
the output end of the push-pull circuit 2012 is connected with the input end of the isolation protection circuit 2013, and the output end of the isolation protection circuit 2013 is connected with the first end of the switch circuit 2014; the second end of the switch circuit 2014 is connected with the input end of the pulse receiving circuit 202 through a coil which is arranged on the outer wall of the inner cylinder of the dustbin in the periphery, and the third end of the switch circuit 2014 is grounded.
The optical coupling module 2011 is configured to isolate the first power VCC1 from the second power VCC2, and transmit the pulse signal output by the main controller 30 to the back-end circuit.
The push-pull circuit 2012 is used for improving the loading capacity and reducing the power consumption of the circuit.
The isolation protection circuit 2013 has an isolation protection function.
The switching circuit 2014, which has two states of on and off, may be a circuit composed of various transistors, such as a transistor, a MOS transistor, etc.
Specifically, the pulse signal output by the main controller 30 is transmitted to the push-pull circuit 2012 through the optical coupling module 2011 to control two transistors with different polarities in the push-pull circuit 2012 to be alternately turned on, and the on-frequency of the switching circuit 2014 is controlled by the two transistors with different polarities in the push-pull circuit 2012 to be alternately turned on, so as to output the corresponding pulse signal, and the pulse signal is transmitted to the pulse receiving circuit 202 through the coil.
Optionally, referring to fig. 3, in an embodiment, the push-pull circuit 2012 includes a first resistor R1, a second resistor R2, a third resistor R3, a first diode D1, a first transistor T1, a second transistor T2, and a third transistor T3; wherein the content of the first and second substances,
one end of the first resistor R1 is connected to the fourth end 4 of the optocoupler module 2011, and the other end of the first resistor R1 is connected to one end of the second resistor R2, the first end of the first transistor T1, and the negative electrode of the first diode D1; the other end of the second resistor R2, the second end of the first transistor T1 and the second end of the second transistor T2 are all connected to a second power source VCC 2; the third terminal of the first transistor T1 is connected to the anode of the first diode D1, the first terminal of the second transistor T2 and the first terminal of the third transistor T3 through a third resistor R3; the third terminal of the second transistor T2 and the second terminal of the third transistor T3 are both connected to the input terminal of the isolation protection circuit 2013, and the second terminal of the third transistor T3 is grounded.
In this embodiment, the first transistor T1 may be an NPN transistor. The second transistor T2 and the third transistor T3 are two transistors with different polarities, for example, if the second transistor T2 is an NPN transistor, the third transistor T3 is a PNP transistor; if the second transistor T2 is a PNP transistor, the third transistor T3 is an NPN transistor.
Specifically, the pulse signal output by the main controller 30 is transmitted to the push-pull circuit 2012 through the optical coupling module 2011. The pulse signal is amplified by the first transistor T1 and then transmitted to the second transistor T2 and the third transistor T3 to control the second transistor T2 and the third transistor T3 to be turned on alternately. The on frequency of the switch circuit 2014 is controlled by the second transistor T2 and the third transistor T3 being turned on alternately, so that a corresponding pulse signal is output and transmitted to the pulse receiving circuit 202 via the coil.
Optionally, referring to fig. 3, in an embodiment, the isolation protection circuit 2013 includes a fourth resistor R4 and a second diode D2; one end of the fourth resistor R4 and the cathode of the second diode D2 are both connected to the output terminal of the push-pull circuit 2012, and the other end of the fourth resistor R4 and the anode of the second diode D2 are both connected to the first end of the switch circuit 2014.
Optionally, referring to fig. 3, in an embodiment, the switching circuit 2014 includes an N-MOS transistor T4; the grid electrode of the N-MOS tube T4 is connected with the output end of the isolation protection circuit 2013, the drain electrode of the N-MOS tube T4 is connected with the input end of the pulse receiving circuit 202 through a coil surrounding the outer wall of the inner barrel of the dustbin, and the source electrode of the N-MOS tube T4 is grounded.
Optionally, referring to fig. 3, in an embodiment, the pulse receiving circuit 202 includes a receiving circuit 2021 and an operational amplifier 2022; the input end of the receiving circuit 2021 is connected to the output end of the pulse transmitting circuit 201 via a coil wound around the outer wall of the inner cylinder of the garbage can, the output end of the receiving circuit 2021 is connected to the input end of the operational amplifier 2022, and the output end of the operational amplifier 2022 is connected to the second input end of the main controller 30.
Specifically, the pulse signal output by the pulse transmitting circuit 201 is received by the receiving circuit 2021, amplified by the operational amplifier 2022, and fed back to the main controller 30. Once a metal object passes through the coil, the magnetic field in the tank changes, and thus the pulse signal received by the main controller 30 changes, and the main controller 30 can determine the amount of metal in the tank by analyzing the received pulse signal.
Optionally, referring to fig. 3, in an embodiment, the receiving circuit 2021 includes a first capacitor C1, a third diode D3, a fourth diode D4, a fifth diode D5, a fifth resistor R5, and a sixth resistor R6; one end of the first capacitor C1 and the cathode of the third diode D3 are both connected to the second power VCC2, and the other end of the first capacitor C1 and the anode of the third diode D3 are grounded; one end of the fifth resistor R5, the anode of the fourth diode D4 and the cathode of the fifth diode D5 are all grounded; the other end of the fifth resistor R5 is connected to the cathode of the fourth diode D4, the anode of the fifth diode D5 and the input terminal of the operational amplifier 2022 through a sixth resistor R6.
In this embodiment, the third diode D3 is used to prevent short circuit, and the fourth diode D4 and the fifth diode D5 are limiter diodes for limiting the amplitude of the pulse signal. The first capacitor C1 is an energy storage capacitor. The sixth resistor R6 is a current limiting resistor for protecting the circuit.
Specifically, once a metal object passes through the coil, the magnetic field in the garbage bin changes, and the pulse signal received by the receiving circuit 2021 changes. Correspondingly, the voltage of the input terminal of the operational amplifier 2022 to the ground also changes, for example, decays from millivolt level to 0, so the main controller 30 can determine the amount of garbage in the garbage bin according to the decay speed of the operational amplifier 2022 to the ground.
Optionally, the operational amplifier 2022 may be an LM358 dual operational amplifier. The internal part of the circuit comprises two independent operational amplifiers with high gain and internal frequency compensation. The first stage is a positive feedback amplifier, and the amplification factor of the positive feedback amplifier can be 100-200 times, such as 100 times, 150 times or 200 times; the second stage may be connected to a low pass filter circuit for ground stabilization. The weak pulse signal is amplified by the operational amplifier 2022 so that the main controller 30 can effectively recognize the weak pulse signal and accurately judge the amount of the metal objects in the trash bin based on the recognized pulse signal.
The utility model also provides a garbage can which comprises the garbage detection circuit. The detailed structure of the garbage detection circuit can refer to the above embodiments, and is not described herein again; it can be understood that, because the garbage detection circuit is used in the garbage can of the present invention, the embodiment of the garbage can of the present invention includes all technical solutions of all embodiments of the garbage detection circuit, and the achieved technical effects are also completely the same, and are not described herein again.
Optionally, the garbage can comprises a cylinder and a bottom plate; the garbage can comprises a barrel, a garbage bin and a garbage bin, wherein the barrel comprises an outer barrel and an inner barrel which is nested in the outer barrel, the outer wall of the inner barrel surrounds a coil, and the inner barrel is provided with a containing groove which can contain garbage; the bottom plate is arranged in the containing groove of the inner barrel and forms an installation cavity with the bottom wall and the side wall of the containing groove in an enclosing mode, and the garbage detection circuit is arranged in the installation cavity.
The above description is only an alternative embodiment of the present invention, and not intended to limit the scope of the present invention, and all modifications and equivalents of the present invention, which are made by the contents of the present specification and the accompanying drawings, or directly/indirectly applied to other related technical fields, are included in the scope of the present invention.
Claims (10)
1. The garbage detection circuit is characterized by comprising a weight detection circuit, a metal detection circuit, a main controller and an upper computer;
the output end of the weight detection circuit is connected with the first input end of the main controller, the output end of the metal detection circuit is connected with the second input end of the main controller, and the main controller is in communication connection with the upper computer.
2. The debris detection circuit of claim 1, wherein the metal detection circuit comprises a pulse transmission circuit and a pulse reception circuit;
the input end of the pulse transmitting circuit is connected with the output end of the main controller so as to receive the pulse signal output by the main controller, and the output end of the pulse transmitting circuit is connected with the input end of the pulse receiving circuit through a coil.
3. The debris detection circuit of claim 2, wherein the pulse transmission circuit comprises an opto-coupler module, a push-pull circuit, an isolation protection circuit, and a switching circuit;
the first end of the optical coupling module is connected with a first power supply, the second end of the optical coupling module is connected with the output end of the main controller, the third end of the optical coupling module is grounded, and the fourth end of the optical coupling module is connected with the input end of the push-pull circuit;
the output end of the push-pull circuit is connected with the input end of the isolation protection circuit, and the output end of the isolation protection circuit is connected with the first end of the switch circuit;
the second end of the switch circuit is connected with the input end of the pulse receiving circuit through the coil, and the third end of the switch circuit is grounded.
4. The garbage detection circuit of claim 3, wherein the push-pull circuit comprises a first resistor, a second resistor, a third resistor, a first diode, a first transistor, a second transistor, and a third transistor;
one end of the first resistor is connected with the fourth end of the optocoupler module, and the other end of the first resistor is connected with one end of the second resistor, the first end of the first transistor and the negative electrode of the first diode; the other end of the second resistor, the second end of the first transistor and the second end of the second transistor are connected with a second power supply;
the third end of the first transistor is connected with the anode of the first diode, the first end of the second transistor and the first end of the third transistor through the third resistor;
and the third end of the second transistor and the second end of the third transistor are both connected with the input end of the isolation protection circuit, and the second end of the third transistor is grounded.
5. The debris detection circuit of claim 3, wherein the isolation protection circuit comprises a fourth resistor and a second diode;
one end of the fourth resistor and the negative electrode of the second diode are both connected with the output end of the push-pull circuit, and the other end of the fourth resistor and the positive electrode of the second diode are both connected with the first end of the switch circuit.
6. The debris detection circuit of claim 3, wherein the switching circuit comprises an N-MOS transistor;
the grid electrode of the N-MOS tube is connected with the output end of the isolation protection circuit, the drain electrode of the N-MOS tube is connected with the input end of the pulse receiving circuit through the coil, and the source electrode of the N-MOS tube is grounded.
7. The garbage detection circuit of claim 2 wherein the pulse receiving circuit comprises a receiving circuit and an operational amplifier;
the input end of the receiving circuit is connected with the output end of the pulse transmitting circuit through the coil, the output end of the receiving circuit is connected with the input end of the operational amplifier, and the output end of the operational amplifier is connected with the second input end of the main controller.
8. The debris detection circuit of claim 7, wherein the receiving circuit comprises a first capacitor, a third diode, a fourth diode, a fifth resistor, and a sixth resistor;
one end of the first capacitor and the cathode of the third diode are both connected with a second power supply, and the other end of the first capacitor and the anode of the third diode are grounded;
one end of the fifth resistor, the anode of the fourth diode and the cathode of the fifth diode are all grounded; the other end of the fifth resistor is connected with the cathode of the fourth diode, the anode of the fifth diode and the input end of the operational amplifier through the sixth resistor.
9. A waste bin, characterized in that it comprises a waste detection circuit according to any one of claims 1-8.
10. A waste bin according to claim 9, including:
the garbage can comprises a can body and a garbage can, wherein the can body comprises an outer can and an inner can nested in the outer can, the outer wall of the inner can surrounds a coil, and the inner can is provided with a containing groove capable of containing garbage;
the bottom plate is arranged in the accommodating groove and surrounds the bottom wall and the side wall of the accommodating groove to form an installation cavity, and the garbage detection circuit is arranged in the installation cavity.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121863935.4U CN215708957U (en) | 2021-08-10 | 2021-08-10 | Garbage detection circuit and garbage can |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121863935.4U CN215708957U (en) | 2021-08-10 | 2021-08-10 | Garbage detection circuit and garbage can |
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| Publication Number | Publication Date |
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| CN215708957U true CN215708957U (en) | 2022-02-01 |
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| CN202121863935.4U Active CN215708957U (en) | 2021-08-10 | 2021-08-10 | Garbage detection circuit and garbage can |
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| CN (1) | CN215708957U (en) |
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