WO2019237527A1 - 垃圾袋检测装置、智能垃圾桶及自动换袋控制方法 - Google Patents

垃圾袋检测装置、智能垃圾桶及自动换袋控制方法 Download PDF

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Publication number
WO2019237527A1
WO2019237527A1 PCT/CN2018/104796 CN2018104796W WO2019237527A1 WO 2019237527 A1 WO2019237527 A1 WO 2019237527A1 CN 2018104796 W CN2018104796 W CN 2018104796W WO 2019237527 A1 WO2019237527 A1 WO 2019237527A1
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WO
WIPO (PCT)
Prior art keywords
trash
transmitting
receiving end
receiving
garbage bag
Prior art date
Application number
PCT/CN2018/104796
Other languages
English (en)
French (fr)
Inventor
邱北京
李建祥
Original Assignee
上海拓牛智能科技有限公司
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Priority claimed from CN201810624081.0A external-priority patent/CN108674856A/zh
Priority claimed from CN201810623433.0A external-priority patent/CN108674855A/zh
Application filed by 上海拓牛智能科技有限公司 filed Critical 上海拓牛智能科技有限公司
Priority to RU2021100013A priority Critical patent/RU2770858C1/ru
Priority to AU2018427834A priority patent/AU2018427834B2/en
Priority to GB2004133.1A priority patent/GB2580266B/en
Priority to SG11202012544WA priority patent/SG11202012544WA/en
Priority to CH01579/20A priority patent/CH716457B1/de
Priority to CA3079237A priority patent/CA3079237C/en
Publication of WO2019237527A1 publication Critical patent/WO2019237527A1/zh

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65F—GATHERING OR REMOVAL OF DOMESTIC OR LIKE REFUSE
    • B65F1/00—Refuse receptacles; Accessories therefor
    • B65F1/04—Refuse receptacles; Accessories therefor with removable inserts
    • B65F1/06—Refuse receptacles; Accessories therefor with removable inserts with flexible inserts, e.g. bags or sacks
    • B65F1/062—Refuse receptacles; Accessories therefor with removable inserts with flexible inserts, e.g. bags or sacks having means for storing or dispensing spare bags
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65F—GATHERING OR REMOVAL OF DOMESTIC OR LIKE REFUSE
    • B65F1/00—Refuse receptacles; Accessories therefor
    • B65F1/04—Refuse receptacles; Accessories therefor with removable inserts
    • B65F1/06—Refuse receptacles; Accessories therefor with removable inserts with flexible inserts, e.g. bags or sacks
    • B65F1/065—Refuse receptacles; Accessories therefor with removable inserts with flexible inserts, e.g. bags or sacks with means aiding the insertion of the flexible insert
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65F—GATHERING OR REMOVAL OF DOMESTIC OR LIKE REFUSE
    • B65F1/00—Refuse receptacles; Accessories therefor
    • B65F1/04—Refuse receptacles; Accessories therefor with removable inserts
    • B65F1/06—Refuse receptacles; Accessories therefor with removable inserts with flexible inserts, e.g. bags or sacks
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65F—GATHERING OR REMOVAL OF DOMESTIC OR LIKE REFUSE
    • B65F1/00—Refuse receptacles; Accessories therefor
    • B65F1/14—Other constructional features; Accessories
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65F—GATHERING OR REMOVAL OF DOMESTIC OR LIKE REFUSE
    • B65F1/00—Refuse receptacles; Accessories therefor
    • B65F1/14—Other constructional features; Accessories
    • B65F1/16—Lids or covers
    • G—PHYSICS
    • G05—CONTROLLING; REGULATING
    • G05B—CONTROL OR REGULATING SYSTEMS IN GENERAL; FUNCTIONAL ELEMENTS OF SUCH SYSTEMS; MONITORING OR TESTING ARRANGEMENTS FOR SUCH SYSTEMS OR ELEMENTS
    • G05B11/00—Automatic controllers
    • G05B11/01—Automatic controllers electric
    • G—PHYSICS
    • G08—SIGNALLING
    • G08B—SIGNALLING OR CALLING SYSTEMS; ORDER TELEGRAPHS; ALARM SYSTEMS
    • G08B21/00—Alarms responsive to a single specified undesired or abnormal condition and not otherwise provided for
    • G08B21/18—Status alarms
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65F—GATHERING OR REMOVAL OF DOMESTIC OR LIKE REFUSE
    • B65F2210/00—Equipment of refuse receptacles
    • B65F2210/128—Data transmitting means
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65F—GATHERING OR REMOVAL OF DOMESTIC OR LIKE REFUSE
    • B65F2210/00—Equipment of refuse receptacles
    • B65F2210/137—Fans
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65F—GATHERING OR REMOVAL OF DOMESTIC OR LIKE REFUSE
    • B65F2210/00—Equipment of refuse receptacles
    • B65F2210/168—Sensing means
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65F—GATHERING OR REMOVAL OF DOMESTIC OR LIKE REFUSE
    • B65F2210/00—Equipment of refuse receptacles
    • B65F2210/179—Suction means, e.g. for forcing a bag inside the receptacle

Definitions

  • the invention relates to the technical field of smart trash cans, and more particularly, to a trash bag detection device, a smart trash can and an automatic bag changing control method.
  • an infrared sensing device is generally provided at the position of the flip cover.
  • the flip cover When the person passes by, the flip cover is opened, and when the person leaves, the flip cover is closed.
  • these simple functions are far from satisfying people's demand. Therefore, technicians in related fields have begun to study functions such as smart induction, automatic packing, and automatic bag changing.
  • automatic bag changing can solve the problem of time-consuming and labor-intensive manual bag changing. The air is drawn out so that the outside atmospheric pressure is higher than the pressure in the bucket. At this time, the garbage bag is pressed into the bucket due to the atmospheric pressure, thereby completing the automatic bag change.
  • the object of the present invention is to provide a garbage bag detection device, a smart garbage bin and an automatic bag changing control method, which can detect the position of the garbage bag in the garbage bin. Control is performed based on the detected garbage bag information. When the garbage bag is not laid, the laying operation is maintained. When the garbage bag is laid, the laying stop is controlled.
  • a garbage bag detection device for a smart garbage bin which includes a transmitting end for transmitting a signal and a receiving end for receiving a signal, and the transmitting end and the receiving end are both disposed in the garbage bin.
  • a transmitting end for transmitting a signal and a receiving end for receiving a signal and the transmitting end and the receiving end are both disposed in the garbage bin.
  • the signal received by the receiving end is a direct signal transmitted by the transmitting end, or a signal reflected after transmission by the transmitting end.
  • the garbage bag detection device further includes a fan and a control mechanism for exhausting the trash can, and the transmitting end, the receiving end, and the fan are communicably connected to the control mechanism, and The control mechanism controls the running state of the fan according to a signal received by the receiving end, wherein:
  • the signal received by the receiving end is a direct signal transmitted by the transmitting end.
  • the receiving end forms a first sensing signal, and the control The mechanism controls the fan to stop according to the first induction signal;
  • the signal received by the receiving end is a reflected signal after the transmitting end transmits, and when there is a garbage bag in the bucket and is close to the receiving end and the transmitting end, the receiving end forms a first induction signal, the The control mechanism controls the fan to stop according to the first sensing signal.
  • the transmitting end is an infrared transmitting tube, and the receiving end is an infrared receiving tube; or, the transmitting end is an ultrasonic transmitting device, and the receiving end is an ultrasonic receiving device.
  • the signal received by the receiving end is a direct signal transmitted by the transmitting end:
  • the transmitting end is located on the inner bottom surface of the trash can
  • the receiving end is located on the inner side wall of the trash can
  • the included angle ⁇ between the launch center line of the transmitting end and the inner bottom surface of the trash can is 30 -50 degrees
  • the included angle ⁇ between the receiving center line of the receiving end and the vertical direction of the inner wall of the trash bin is 38-58 degrees
  • the receiving end is located on the inner bottom surface of the trash can
  • the transmitting end is located on the inner side wall of the trash can
  • the included angle ⁇ between the receiving centerline of the receiving end and the inner bottom surface of the trash can is 30 -50 degrees
  • the included angle ⁇ between the emission centerline of the transmitting end and the vertical direction of the inner wall of the trash bin is 38-58 degrees.
  • the transmitting end and the receiving end are oppositely disposed on an inner side wall of the trash can, and the transmitting end and The receiving ends are all close to the inner bottom surface of the trash can.
  • the signal received by the receiving end is a reflected signal after being transmitted by the transmitting end:
  • the transmitting end and the receiving end are both disposed on the inner bottom surface of the trash can, and the transmitting center of the transmitting end and the receiving center of the receiving end are both facing upward; or,
  • the transmitting end and the receiving end are both disposed on the inner side wall of the trash can, and the transmitting center of the transmitting end and the receiving center of the receiving end are both disposed inside the bucket.
  • the transmitting end and the receiving end are both fixed to the inner wall of the trash bin by a fool-proof structure.
  • the garbage bag detection device further includes a dust-proof and light-shielding protective cover, the protective cover is connected to the inner wall of the trash can, and the transmitting end and the receiving end are respectively located in the protective cover. Inside.
  • a smart garbage bin which includes the garbage bag detection device according to any one of the above.
  • an automatic bag changing control method for a smart trash can is provided.
  • the smart trash can is equipped with the above-mentioned trash bag detection device, and the automatic bag changing control method includes:
  • the method before starting the fan, the method further includes:
  • the detection method of the radio can detect the presence or absence of garbage bags in the trash bin; the reflective (receiving signal is received at the receiving end) detection method can be accurate according to the strength of the reflected signal. Positioning the position of the garbage bag in the trash can can form a continuous position sensing signal, which enables the control system to judge and execute different program outputs.
  • the fan can be turned off when the garbage bag is laid to avoid the problem that the garbage bag is sucked into the fan to damage the garbage bag. It is beneficial to protect the garbage bag and save resources. It reduces the potential safety hazards in the smart garbage bin. For stability and reliability.
  • FIG. 1 is a structural diagram of a garbage bag detection device according to a first embodiment of the present invention.
  • FIG. 2 is an enlarged view of a structure of an area of the infrared emitting tube in FIG. 1.
  • FIG. 3 is an enlarged view of a structure of an area of the infrared receiving tube in FIG. 1.
  • Fig. 4 is a structural diagram of a protective cover of the garbage bag detecting device in the first embodiment.
  • Fig. 5 is a circuit diagram of an infrared receiving circuit of the garbage bag detecting device in the first embodiment.
  • FIG. 6 is a flowchart of a method for controlling an automatic bag change of a smart trash can in the first embodiment.
  • FIG. 7 is an exploded view of a fan of the smart trash can in the first embodiment.
  • FIG. 8 is a schematic structural diagram of a centrifugal impeller of a fan of a smart trash bin in the first embodiment.
  • FIG. 9 is a structural diagram of a garbage bag detection device according to a second embodiment of the present invention.
  • FIG. 10 is a circuit diagram of an infrared receiving circuit of the garbage bag detecting device in the second embodiment.
  • FIG. 11 is a flowchart of a method for controlling an automatic bag change of a smart trash can in a second embodiment.
  • FIG. 12 is a structural diagram of the transmitting end and the receiving end of the garbage bag detecting device in the second embodiment installed on the inner wall of the garbage bin.
  • a first embodiment of a garbage bag detection device for a smart trash can includes a transmitting end 13 and a receiving end 14.
  • the transmitting end 13 can transmit signals and the receiving end 14 can receive signals.
  • the transmitting end 13 and the receiving end 14 are oppositely disposed on the inner wall of the trash can, so that the receiving end 14 can receive the direct signal sent by the transmitting end 13.
  • the signal transmitted by the transmitting end 13 is blocked by the garbage bag, so that the receiving end 14 forms a first sensing signal, so that the detection of the garbage bag in the garbage bin is achieved. Function inside position.
  • the transmitting end 13 and the receiving end 14 may use infrared devices, that is, infrared transmitting tubes and infrared receiving tubes, but are not limited to this device, and may also be ultrasonic transmitting and receiving devices, or other radar-like devices. Radio transmitting and receiving devices all belong to the protection content of this application.
  • Infrared is an electromagnetic wave with a wavelength between microwave and visible light. It has the characteristics of stable performance and strong penetrability. In addition, the price of infrared transmitting tubes and infrared receiving tubes is relatively cheap, which is conducive to cost savings. Its ability to resist sunlight interference is stronger, which can avoid the problem that the infrared radiation receiving device fails in sunlight. Therefore, the transmitting end 13 and the receiving end 14 preferably adopt infrared transmitting tubes and infrared receiving tubes. The following description takes infrared transmitting tubes and infrared receiving tubes as examples.
  • the function of detecting the position of the garbage bag in the trash can is simply and reliably realized by using the infrared radiation device.
  • the intelligent trash can needs the position information of the trash bag in the process of further intelligentization.
  • the position detection device is used in the trash can, which is helpful to improve the quality of the automatic laying trash bag and the intelligent degree of the performance of the smart trash can.
  • the garbage bag detection device further includes a fan and a control mechanism, wherein the fan can extract air through the exhaust port to extract the air in the garbage bin, and the garbage bag is pressed into the garbage bin under the effect of atmospheric pressure.
  • the fan, the infrared transmitting tube 13 and the infrared receiving tube 14 can be communicatively connected to the control mechanism, and, under the function of the control mechanism, the first induction signal is transmitted to the control mechanism, thereby controlling the operating state of the fan , And the working status of each mechanism when the bag is changed automatically.
  • the trash bag detection device can detect the position of the trash bag in the trash can, and can also turn off the fan 15 when the laying of the trash bag is completed to prevent the trash bag from being sucked into the fan 15 In order to make the garbage bag damaged.
  • the garbage bag detection device is beneficial to protect the garbage bag, to save resources, reduce hidden safety hazards in the smart garbage bin, and improve stability and reliability.
  • one of the infrared emitting tube 13 and the infrared receiving tube 14 is disposed on the inner side wall of the trash can, and the other is disposed on the inner bottom surface of the trash can. That is, the infrared emitting tube 13 may be disposed on the trash The inner side wall of the bucket, and the infrared receiving tube 14 is disposed on the inner bottom surface of the trash can, or the infrared emitting tube 13 is disposed on the inner bottom surface of the trash can, and the infrared receiving tube 14 is disposed on the inner side wall of the trash can.
  • the specific position depends on the situation. It depends.
  • the fan is located at the connection between the inner side wall and the inner bottom surface of the trash bin.
  • the wind drawn by the air outlet can always pass between the infrared transmitting tube 13 and the infrared receiving tube 14 and the garbage bag is laid with the suction force of the fan 15
  • the garbage bag will not reach between the infrared transmitting tube 13 and the infrared receiving tube 14, and the infrared receiving tube 14 will not form a first induction signal;
  • the garbage bag will Being located between the infrared transmitting tube 13 and the infrared receiving tube 14, the infrared receiving tube 14 forms a first induction signal, and the control mechanism controls the fan 15 to stop by receiving the first induction signal.
  • the included angle ⁇ formed by the emission centerline of the infrared emitting tube 13 and the inner bottom surface of the trash bin is 30-50 Degree
  • the angle ⁇ formed by the receiving centerline of the infrared receiving tube 14 and the vertical direction of the inner wall of the trash can is 38-58 degrees, as shown in FIG. 1, the vertical direction of the inner wall is the bottom surface of the trash can Vertical orientation.
  • the smaller the included angle ⁇ the more likely it is to cause mis-touch, and then affect the position detection of the garbage bag.
  • the larger the included angle ⁇ the farther the installation distance of the infrared receiving tube 14 is, which is not conducive to detection or installation. This arrangement can save costs and facilitate assembly, and also makes the detection structure more accurate.
  • the included angle ⁇ formed between the receiving centerline of the infrared receiving tube 14 and the inner bottom surface of the trash bin is 30-50 degrees
  • the included angle ⁇ between the emission center line of the infrared emission tube 13 and the vertical direction of the inner wall of the trash bin is 38-58 degrees.
  • the included angle ⁇ is set to 40 degrees, and the included angle ⁇ is set to 48 degrees. In this way, the installation distance is moderate, the detection effect is good, and it can save costs and facilitate assembly.
  • the maximum angle ⁇ of the infrared rays emitted by the infrared transmitting tube 13 is set to 93 degrees, and the maximum angle ⁇ received by the infrared receiving tube 14 is set to 44 degrees, as shown in FIG. 1. In this way, the range of transmission and reception is wide, which is beneficial to Improve the accuracy of garbage bag position detection.
  • the infrared receiving tube 14 and the infrared transmitting tube 13 are both located on the inner side wall of the trash can and near the inner bottom surface of the trash can. At this time, the fan is disposed on the inner bottom surface of the trash can. The wind drawn from the mouth can always pass between the infrared emitting tube 13 and the infrared receiving tube 14.
  • the garbage bag When the garbage bag is laid with the suction of the fan 15, if the garbage bag is not laid, the garbage bag will not reach the infrared emitting tube 13 and Between the infrared receiving tubes 14, the infrared receiving tube 14 will not form a first induction signal; if the garbage bag is laid, the garbage bag will be between the infrared transmitting tube 13 and the infrared receiving tube 14, so that the infrared receiving tube 14 is formed.
  • the first sensing signal and then the control mechanism controls the fan 15 to stop by receiving the first sensing signal.
  • the positions and angles of the infrared transmitting tube 13 and the infrared receiving tube 14 are fixed in the structural design, so as to ensure that the transmitting angle of the infrared transmitting tube 13 faces the infrared receiving tube 14 and is structurally correct.
  • the emission angles of the infrared transmitting tube 13 and the infrared receiving tube 14 are limited to prevent infrared signals from being transmitted to the infrared receiving tube 14 along the gap between the garbage bag and the bottom of the bucket. That is, both the infrared transmitting tube 13 and the infrared receiving tube 14 are fixed to the inner wall of the trash can by a fool-proof structure known in the art.
  • the installation angle of the infrared transmitting tube 13 and the infrared receiving tube 14 can be fixed, which is convenient for the infrared transmitting tube.
  • 13 and the infrared receiving tube 14 are installed in the correct positions and angles, saving time and effort and improving work efficiency.
  • the foolproof structure includes a groove and a protrusion, and the protrusion can be embedded in the groove.
  • an inner cavity for the infrared emitting tube 13 and the infrared receiving tube 14 to be embedded and installed is provided on the inner wall of the trash can.
  • the direction of the inner cavity can limit the angle of the infrared transmitting tube 13 and the infrared receiving tube 14.
  • one of the groove and the protrusion is located on the outer wall of the infrared receiving tube 14 or the infrared transmitting tube 13, and the other is located on the inner wall of the inner cavity.
  • the groove is provided in the axial direction.
  • the above “axial direction” is the extending direction of the inner cavity.
  • the installation angle of the infrared transmitting tube 13 and the infrared receiving tube 14 can be fixed, and it is convenient to install the positions and angles of the infrared transmitting tube 13 and the infrared receiving tube 14 correctly. Save time and effort, and improve work efficiency.
  • both the infrared transmitting tube 13 and the infrared receiving tube 14 are structured to be waterproof and dustproof. That is, the dustproof and light-shielding transparent protective cover 16 is connected to the inner wall of the trash can.
  • the infrared receiving tube 14 and the infrared receiving tube 14 are respectively located in the protective cover 16. Since the protective cover 16 is a transparent structure, infrared rays can pass through, thereby facilitating the position detection of the garbage bag.
  • the protective cover 16 may be provided with two, which respectively accommodate the infrared transmitting tube 13 and the infrared receiving tube 14, so that it is convenient to save materials and reduce costs.
  • the structure of the protective cover 16 is shown in FIG. 4.
  • the material of the protective cover 16 may be plastic or glass, depending on the specific situation.
  • the control mechanism may further include an MCU (Microcontroller Unit) and an infrared transmitting and receiving circuit.
  • the infrared transmitting and receiving circuit is composed of an amplification circuit, a modulation and demodulation circuit, and the like, as shown in FIG. 5, the 38KHz is generated by the MCU.
  • the modulated carrier is sent to the infrared transmitting tube 13.
  • the carrier signal emitted by the infrared transmitting tube 13 is successfully transmitted to the infrared receiving tube 14 when there is no obstacle (garbage bag).
  • the carrier signal transmitted by the infrared transmitting tube 13 has an obstacle (garbage bag). In the case of interference, it cannot be successfully transmitted to the infrared receiving tube 14, so that the modulation carrier received by the infrared receiving tube 14 is weak, or even zero, thereby detecting the position of the garbage bag.
  • the outer receiver tube 14 After receiving the carrier signal, the outer receiver tube 14 gains, demodulates, and sends it to the comparator output signal.
  • This method has strong anti-interference ability and can keep normal under harsh light sources and sunlight.
  • the power of the transmitter is limited.
  • the signal from the infrared transmitting tube 13 cannot pass through the garbage bag and be transmitted to the infrared receiving tube 14. If the infrared receiving tube 14 cannot receive the infrared signal, it is determined that there is a garbage bag in the bucket, and then the fan 15 is controlled. Stop running.
  • This embodiment also provides a smart trash bin, which includes a trash bag detection device, and the trash bag detection device is the trash bag detection device described in the above embodiment.
  • the trash bag detection device can detect the position of the trash bag and the trash can, and can also turn off the fan 15 when the laying of the trash bag is completed to prevent the trash bag from being sucked into the fan 15 In order to make the garbage bag damaged.
  • the garbage bag detection device is beneficial to protect the garbage bag, to save resources, reduce hidden safety hazards in the smart garbage bin, and improve stability and reliability.
  • the derivation process of this beneficial effect is substantially similar to the derivation process of the above-mentioned garbage bag detection device, so it will not be repeated here.
  • the smart trash can further includes a fan 15 including a casing and a centrifugal impeller 1.
  • the centrifugal impeller 1 is disposed inside the casing.
  • the fan 15 further includes driving the centrifugal impeller 1 to rotate.
  • the casing is provided with an air inlet 3 along the axial direction of the centrifugal impeller 1, and the casing is provided with an air outlet in the radial direction of the centrifugal impeller 1.
  • the outside of the bucket body communicates with each other, and the centrifugal impeller 1 is driven to rotate by the motor 2.
  • the air inside the trash body is drawn out from the air outlet at the bottom of the trash body, so that the atmospheric pressure is far greater than the pressure inside the trash body.
  • the garbage bag moves downwards until the bottom of the bag touches the bottom of the trash can, completing the laying of the garbage bag, and then turning off the motor.
  • each blade 4 of the centrifugal impeller 1 is provided with a raised portion 5 at a position corresponding to the air inlet 3 in the direction of the air inlet 3, and in this way, the wind cut surface is increased, the air inlet volume is increased, the suction force is increased, and the air is drawn Faster, shortening the pumping time, saving time for laying garbage bags, and improving work efficiency.
  • the protruding portion 5 is a sheet-like structure, and the thickness of the protruding portion 5 is equal to the thickness of the blade 4.
  • the protruding portion 5 and the blade 4 can be provided as an integrated structure, which can satisfy Increase the cutting wind surface requirements, and facilitate processing.
  • This arrangement solves the problem that the suction force of the fan used in the existing smart trash can is not large.
  • the centrifugal impeller 1 further includes a wheel disc 6 fixedly connected to each blade 4. As shown in FIG. 8, the blade 4 is disposed perpendicularly to the wheel disc 6. In this embodiment, the blade 4 may be arranged in an arc structure. And the thickness of the end of the blade 4 far from the center of the wheel disc 6 is smaller than the thickness of the rest of the blade 4. This arrangement can effectively guide the airflow direction and timely exhaust the wind.
  • the housing includes a top cover 7 and a bottom cover 8, and the top cover 7 and the bottom cover 8 are detachably connected.
  • the air inlet 3 is provided on the top cover 7, and the top cover 7 and the bottom
  • the gap between the covers 8 forms an air outlet.
  • the top cover 7 and the bottom cover 8 may be provided in a rectangular structure. Further, the top cover 7 and the bottom cover 8 may be snapped together, and the bottom end of the top cover 7 is provided with at least two fixing columns 9, the bottom The cover 8 is provided with at least two grooves 10, and the fixing post 9 can be inserted into the groove 10 and closely fit with the groove 10. Specifically, four fixing posts 9 can be provided respectively on the top cover 7 At the four corners, this ensures the stability of the connection.
  • the shell is a four-sided hollow structure.
  • the cross-sectional shape of the air inlet 3 can be set to a circular shape.
  • the centrifugal impeller 1 uses the centrifugal principle to draw air from the circular air inlet 3, and the four hollows can be exhausted. Exhaust quickly.
  • the air inlet 3 may have other shapes.
  • the centrifugal impeller 1 is provided with a shaft hole that cooperates with the main shaft of the motor 2.
  • the bottom cover 8 is provided with a through hole 11 through which the main shaft of the power supply machine 2 passes.
  • the bottom cover 8 can be fixed to the motor 2 with screws 12 first Then, install the centrifugal impeller 1 into the output shaft of the motor 2 and finally snap the top cover 7 into the bottom cover 8 to form a fan.
  • the air inside the trash can body is exhausted from the air outlet of the trash can by the fan 15 so that the atmospheric pressure is higher than the pressure inside the trash body.
  • the atmospheric pressure moves the garbage bag without a breakpoint down and moves the garbage.
  • the fan is turned off.
  • the trash bag is laid inside the trash body, and the laying of the trash bag is completed. There is no need to manually lay the trash bag, which is very convenient and practical.
  • This embodiment also provides an automatic bag changing control method for a smart trash bin, based on the smart trash bin described above, including:
  • the "large flip cover” can be an inner cylinder for holding garbage bags.
  • the opening and closing of the large flip cover is part of the packing process, that is, after the garbage bag containing the garbage is sealed and fused, the garbage The bag falls into the inner cylinder. Opening the large flip cap can tilt the inner cylinder to remove the garbage bag.
  • the system detects that the garbage bag has been removed, the system closes the large flip cap to restore the inner cylinder to its original state for the procedure of laying the garbage bag. .
  • the “alarm” is preferably a buzzer alarm, so as to remind the operator to take out the garbage bag, thereby preventing the garbage bag from staying in the inner cylinder.
  • FIG. 9 to FIG. 11 a second embodiment of a garbage bag detection device for a smart garbage bin according to the present invention.
  • the same components in this embodiment as those in Embodiment 1 are denoted by the same reference numerals.
  • the garbage bag detection device of this embodiment includes a transmitting end 13 and a receiving end 14, wherein the transmitting end 13 is capable of transmitting a signal, and the signal is reflected by the garbage bag 17 or an object to reflect a part of the signal to form The signal is reflected, and the receiving end 14 is used to receive the reflected signal.
  • the receiving end 14 and the transmitting end 13 are both disposed on the inner wall of the trash can, and gradually approach the device from top to bottom when the trash bag 17 is laid. The closer the distance 17 is, the stronger the reflection signal is, and the stronger the reflection signal received by the receiving end 14 is, thereby realizing the accurate perception of the position of the garbage bag 17 in the garbage bin.
  • the inner wall can be the inner wall of the trash can or the inner bottom surface of the trash can.
  • the transmitting end 13 transmits a signal outward. When a garbage bag 17 and other objects approach, it is reflected by the garbage bag 17 or an object, so that a part of the reflected signal enters the receiving end 14.
  • the garbage bag detection device may further include a fan and a control mechanism, wherein the fan is used for exhausting the garbage bin, so that the garbage bag 17 is pressed into the garbage bin by the atmospheric pressure to complete the garbage bag. 17 automatic laying; the transmitting end 13, the receiving end 14 and the fan can be communicatively connected to the control mechanism, and the reflected signal received by the receiving end 14 is transmitted to the control structure. Under the role of the control mechanism, according to the reflected signal received by the receiving end 14 The intensity controls the operating status of the fan and the working status of each mechanism when the bag is changed automatically.
  • the control mechanism can locate the position of the garbage bag 17 in the trash bin by different strengths of the reflected signals, and can form a continuous position sensing signal, so that the control system can judge to execute different program outputs.
  • the trash bag detection device can detect the position of the trash bag 17 in the trash can and perform control based on the detected position information of the trash bag 17 when the trash bag 17 is not laid.
  • the laying operation is maintained.
  • the garbage bag 17 is completed, the laying stop is controlled, and the problem of the garbage bag 17 being damaged by the suction fan can also be avoided.
  • the garbage bag detection device is beneficial to protect the garbage bag, to save resources, reduce hidden safety hazards in the smart garbage bin, and improve stability and reliability.
  • the transmitting end 13 is preferably an infrared transmitting tube.
  • the receiving end 14 is an infrared receiving tube. That is, the infrared signal is transmitted by the infrared signal, and the reflected infrared signal is received after reflection. .
  • the function of detecting the position of the garbage bag 17 in the garbage can is simply and reliably achieved, which effectively prevents the 17 parts of the garbage bag from being automatically changed during the automatic bag changing process.
  • the problem of damage in addition, in the process of further intelligentization of the smart trash can, the position information of the trash bag 17 in the bucket is needed.
  • the position detection device is applied to the trash bucket, which is helpful to improve the quality of the automatic garbage bag 17 and the smart trash. Intelligent degree of bucket performance.
  • the transmitting end 13 and the receiving end 14 are both disposed on the inner bottom surface of the trash can, and gradually approach the inner bottom surface of the trash can from top to bottom when the garbage bag 17 is laid. As the garbage bag 17 approaches closer, The stronger the reflection signal is, the stronger the reflection signal received by the receiving end 14 is, so as to realize the accurate perception of the position of the garbage bag 17 in the garbage bin.
  • the transmitting center of the transmitting end 13 and the receiving center of the receiving end 14 are both facing upward. The "up" and “down” referred to herein are referred to when the device is placed as shown in FIG.
  • the path of the device during transmission, reflection, and reception can be reduced, and the strength of the signal transmitted by the transmitting center is strong, and the ability of the receiving center to receive signals is strong.
  • the induction distance is shortened and the signal is enhanced.
  • the strength is conducive to improving the accuracy and timeliness of the device.
  • the transmitting end 13 and the receiving end 14 are both disposed on the inner side wall of the trash can, and the transmitting center of the transmitting end 13 and the receiving end 14 The receiving centers are all set inside the barrel.
  • the positions and angles of the transmitting end 13 and the receiving end 14 are also fixed to ensure that the transmitting angle of the transmitting end 13 faces the receiving end 14 and the transmitting angles of the transmitting end 13 and the receiving end 14 are structurally fixed. Limits are prevented to prevent infrared signals from being transmitted to the receiving end 14 along the gap between the garbage bag 17 and the bottom of the bucket.
  • the transmitting end 13 and the receiving end 14 are both fixed to the inner wall of the trash bin by a known fool-proof structure. In this way, the installation angle of the transmitting end 13 and the receiving end 14 can be fixed, and the transmitting end 13 is convenient.
  • the position and angle of the receiving end 14 and the receiving end 14 are installed correctly, and are installed at one time, and the relative position and angle of the installation can be relatively flexible, which facilitates installation, saves time and effort, and improves work efficiency.
  • both the transmitting end 13 and the receiving end 14 are treated to be waterproof and dustproof in structure, that is, a transparent protective cover 16 is sealedly connected to the inner wall of the trash can, and the transmitting end 13 and the receiving end 14 are respectively located at In the protective cover 16, since the protective cover 16 is a transparent structure, signals can pass through, thereby facilitating the position detection of the garbage bag 17.
  • the protective cover 16 may be provided with two, respectively receiving the transmitting end 13 and the receiving end 14, so that it is convenient to save materials and reduce costs.
  • the material of the protective cover 16 may be plastic or glass, depending on the specific situation.
  • the control mechanism may also include an MCU (Microcontroller Unit) and an infrared transmitting and receiving circuit.
  • the infrared transmitting and receiving circuit is composed of an amplification circuit and a modulation and demodulation circuit.
  • the 38KHz The modulated carrier is sent to the transmitter.
  • the carrier signal transmitted by the transmitter will not enter the receiver when it is reflected without obstacles (garbage bag 17).
  • the carrier signal transmitted by the transmitter will be partially reflected by obstacles (garbage bag 17).
  • the signal is reflected to the receiving end, so that the receiving end receives the modulated carrier signal and analyzes and compares the strength of the signal, thereby detecting the position of the garbage bag 17.
  • the receiving end 14 receives the carrier signal, gains it, demodulates it, and sends it to the comparator output signal.
  • This method has strong anti-interference ability and can keep normal under harsh light sources and sunlight; due to the power of the transmitting end 13 Limitations are made so that the receiving end can receive the reflected signal smoothly, and judge the position information of the garbage bag 17 in the bucket based on the received reflected signal, and then control the running state of the fan 15.
  • This embodiment also provides a smart trash bin, which includes a trash bag detection device, and the trash bag detection device is the trash bag detection device described in the above embodiment.
  • the garbage bag detection device can detect the positions of the garbage bag 17 and the garbage can, and can also turn off the fan 15 when the garbage bag 17 is laid to avoid the garbage bag 17 The problem of being sucked into the fan 15 to damage the garbage bag 17.
  • the garbage bag detection device is beneficial to protect the garbage bag 17 to save resources, reduce hidden safety hazards existing in the smart garbage bin, and improve stability and reliability.
  • the derivation process of this beneficial effect is substantially similar to the derivation process of the above-mentioned garbage bag detection device, so it will not be repeated here.

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Abstract

一种智能垃圾桶的垃圾袋检测装置、安装有垃圾袋检测装置的智能垃圾桶以及自动换袋控制方法，其中，垃圾袋检测装置包括用于发射信号的发射端（13）和用于接收信号的接收端（14），发射端（13）和接收端（14）均设置于垃圾桶的内壁上，接收端（14）接收的信号是发射端（13）发射的直接信号，或者是发射端（13）发射后经反射的信号。

Description

垃圾袋检测装置、智能垃圾桶及自动换袋控制方法 技术领域
本发明涉及智能垃圾桶技术领域，更具体地说，涉及一种垃圾袋检测装置、智能垃圾桶及自动换袋控制方法。
背景技术
随着科技的进步和人们生活水平的提高，智能家居逐步成为了日常生活中不可缺少的一部分，其中，智能垃圾桶以其干净卫生、使用便捷的特点，成为人们关注的焦点。
现有的智能垃圾桶，一般在翻盖的位置设置红外感应装置，当人经过时开启翻盖，当人离开后关闭翻盖，虽然可以省去开关翻盖的步骤，但是这些简单功能远远不能满足人们的需求。因此，相关领域的技术人员开始研究智能感应、自动打包以及自动换袋等功能，其中，自动换袋能够解决手动换袋费时费力的问题，在自动换袋的过程中，使用风机把垃圾桶内的空气抽出，使得外界大气压高于桶内气压，此时垃圾袋由于大气压的作用被压入桶内，从而完成了自动换袋，但是，由于市面上现有智能垃圾桶，一般为人工手动或半自动换袋，无有效检测桶内垃圾袋位置的检测装置，也就无法判断垃圾袋是否铺设完成，在实现自动更换垃圾袋的过程中，容易造成垃圾袋部分被损坏的情况，甚至会使得智能垃圾桶存在安全隐患，限制了智能垃圾桶的进一步智能化发展。
因此，如何解决现有的智能垃圾桶无法检测到垃圾袋于垃圾桶内的位置，容易造成垃圾袋部分在自动化换袋过程中被损坏，以及如何满足智能垃圾桶在进一步智能化的过程中需要桶内垃圾袋位置信息的问题，是本领域技术人员所要解决的关键技术问题。
发明内容
为至少在一定程度上克服相关产品中存在的问题，本发明的目的在于提供一种垃圾袋检测装置、智能垃圾桶及自动换袋控制方法，其能够检测出垃圾袋于垃圾桶内的位置，并根据检测到的垃圾袋信息来进行控制，当垃圾袋未铺设完成时，维持铺设的运行，当垃圾袋铺设完成后，控制铺设的停止。
本发明的第一个方面，提供了一种智能垃圾桶的垃圾袋检测装置，包括用于发射信号的发射端和用于接收信号的接收端，所述发射端和接收端均设置于垃圾桶的内壁上，其中：
所述接收端接收的信号是发射端发射的直接信号，或者是发射端发射后经反射的信号。
根据本发明，所述垃圾袋检测装置还包括用于对垃圾桶进行抽风的风机以及控制机构，所述发射端、所述接收端和所述风机可通信地连接至所述控制机构，所述控制机构根据所述接收端接收的信号控制所述风机的运行状态，其中：
i)所述接收端接收的信号为发射端发射的直接信号，当所述接收端和所述发射端之间的连线存在垃圾袋时，所述接收端形成第一感应信号，所述控制机构根据所述第一感应信号控制所述风机停止；或者，
ii)所述接收端接收的信号为发射端发射后经反射的信号，当桶内存在垃圾袋且靠近所述接收端和所述发射端时，所述接收端形成第一感应信号，所述控制机构根据所述第一感应信号控制所述风机停止。
优选的，所述发射端为红外发射管，所述接收端为红外接收管；或者，所述发射端为超声波发射装置，所述接收端为超声波接收装置。
根据一个优选实施例，当所述接收端接收的信号为发射端发射的直接信号时：
i)所述发射端位于所述垃圾桶的内底面、所述接收端位于所述垃圾桶的内侧壁，所述发射端的发射中心线与所述垃圾桶的内底面形成的夹角α为30-50度、且所述接收端的接收中心线与所述垃圾桶的内侧壁的竖直方向形成的夹角β为38-58度；或者，
ii)所述接收端位于所述垃圾桶的内底面、所述发射端位于所述垃圾桶的内侧壁，所述接收端的接收中心线与所述垃圾桶的内底面形成的夹角α为30-50度、且所述发射端的发射中心线与所述垃圾桶的内侧壁的竖直方向形成的夹角β为38-58度。
根据一个可替代的方案，当所述接收端接收的信号为发射端发射的直接信号时，所述发射端与所述接收端相对设置在所述垃圾桶的内侧壁，且所述发射端与所述接收端均靠近所述垃圾桶的内底面。
根据本发明的另一个优选实施例，当所述接收端接收的信号为发射端发射后经反射的信号时：
i)所述发射端与所述接收端均设置在所述垃圾桶的内底面，且所述发射端的发射中心与所述接收端的接收中心均朝上设置；或者，
ii)所述发射端与所述接收端均设置在所述垃圾桶的内侧壁，且所述发射端的发射中心与所述接收端的接收中心均朝桶内设置。
优选地，所述发射端和所述接收端均通过防呆结构固定在所述垃圾桶的内壁。
根据另一个优选实施例，所述垃圾袋检测装置还包括防尘遮光的防护罩，所述防护罩与所述垃圾桶的内壁连接，所述发射端和所述接收端分别位于所述防护罩内。
本发明的第二个方面，提供了一种智能垃圾桶，包括有如上述任意一项所述的垃圾袋检 测装置。
本发明的第三个方面，提供了一种智能垃圾桶的自动换袋控制方法，所述智能垃圾桶安装有如上所述的垃圾袋检测装置，所述自动换袋控制方法包括：
启动所述风机；
判断所述接收端是否形成所述第一感应信号；
如果是，则控制所述风机停止。
优选地，在启动风机之前，还包括：
开启垃圾桶的大翻盖后，判断是否形成所述第一感应信号；
如果是，则报警；
如果否，则关闭所述大翻盖，并启动所述风机。
本发明提供的技术方案具有以下有益效果：
1、与普通垃圾桶相比能感知垃圾袋在桶内的状态，进而控制相关机构动作。
2、对射式(接收端接收直接信号)的检测方法，可以检测垃圾桶内垃圾袋的有无；反射式(接收端接收反射信号)的检测方法则能根据反射信号的强弱不同来精确定位垃圾桶内垃圾袋的位置情况，能够形成连续位置感知信号，使控制系统判断执行不同程序输出。
3、具有较好的抗阳光干扰能力更强，可以避免检测装置在阳光下失效的问题。
4、能够在垃圾袋铺设完成时关闭风机，以避免垃圾袋被吸入风机、以使垃圾袋损坏的问题，有利于防护垃圾袋、以节约资源，减少了智能垃圾桶存在的安全隐患，挺升了稳定性和可靠性。
附图说明
图1是本发明第一个实施例的垃圾袋检测装置的结构图。
图2是图1中红外发射管的区域的结构放大图。
图3是图1中红外接收管的区域的结构放大图。
图4是第一个实施例中垃圾袋检测装置的防护罩的结构图。
图5是第一个实施例中垃圾袋检测装置的红外接收电路的电路图。
图6是第一个实施例中智能垃圾桶的自动换袋控制方法的流程图。
图7是第一个实施例中智能垃圾桶的风机的爆炸图。
图8是第一个实施例中智能垃圾桶的风机的离心叶轮结构示意图。
图9是本发明第二个实施例的垃圾袋检测装置的结构图。
图10是第二个实施例中垃圾袋检测装置的红外接收电路的电路图。
图11是第二个实施例中智能垃圾桶的自动换袋控制方法的流程图。
图12是第二个实施例中垃圾袋检测装置的发射端和接收端均安装在垃圾桶的内壁的结构图。
图中：1-离心叶轮，2-电机，3-进风口，4-叶片，5-凸起部，6-轮盘，7-顶盖，8-底盖，9-固定柱，10-凹槽，11-通孔，12-螺丝，13-红外发射管，14-红外接收管，15-风机，16-防护罩。
具体实施方式
这里将详细地对示例性实施例进行说明，其示例表示在附图中。下面的描述涉及附图时，除非另有表示，不同附图中的相同数字表示相同或相似的要素。以下示例性实施例中所描述的实施方式并不代表与本发明相一致的所有实施方式。相反，它们仅是与如所附权利要求书中所详述的、本发明的一些方面相一致的装置或方法的例子。
为使本发明的目的、技术方案和优点更加清楚，下面将对本发明的技术方案进行详细的描述。显然，所描述的实施例仅仅是本发明一部分实施例，而不是全部的实施例。基于本发明中的实施例，本领域普通技术人员在没有做出创造性劳动的前提下所得到的所有其它实施方式，都属于本发明所保护的范围。
实施例1
参考图1-图6，为本发明的智能垃圾桶的垃圾袋检测装置的第一个实施例，包括有发射端13、接收端14，发射端13能够发射出信号，接收端14能够接收信号，其中，发射端13和接收端14相对设置在垃圾桶的内壁，使得接收端14能够接收发射端13发出的直接信号。这样，当垃圾袋部分处于发射端13和接收端14之间时，发射端13发射出的信号被垃圾袋阻挡，使得接收端14形成第一感应信号，这样便实现了检测垃圾袋于垃圾桶内位置的功能。
本实施例中，所述发射端13与接收端14可以采用红外线装置，即红外发射管与红外接收管，但不局限于该装置，还可以是超声波发射接收装置，或其他的累似雷达的无线电发射接收装置，均属于本申请的保护内容。
由于红外线是波长介于微波和可见光之间的电磁波，其具有性能稳定、穿透性强的特点，而且，红外发射管和红外接收管价格相对廉价，有利于节约成本，采用发射接收的方式，其抗阳光干扰能力更强，可以避免对射式红外接收装置在阳光下失效的问题。因此，发射端13和接收端14优选采用红外发射管和红外接收管，以下描述以红外发射管和红外接收管为例。
如此设置，通过使用红外线对射装置，简单可靠地实现了检测垃圾袋于垃圾桶内的位置 的功能，而且，智能垃圾桶在进一步智能化的过程中需要桶内垃圾袋的位置信息，将该位置检测装置应用于垃圾桶内，有利于提升自动铺设垃圾袋的质量以及智能垃圾桶性能的智能化程度。
进一步地，垃圾袋检测装置还包括有风机和控制机构，其中，风机能够通过抽风口进行抽风，以将垃圾桶内的空气抽出，在大气压强的作用下，使得垃圾袋被压进垃圾桶内部，完成自动铺设；风机、红外发射管13和红外接收管14均可通信地与控制机构连接，并且，在控制机构的作用下，将第一感应信号传输到控制机构，进而控制风机的运行状态，以及自动换袋时各个机构的工作状态。
如此设置，在智能垃圾桶更换垃圾袋时，本垃圾袋检测装置能够检测出垃圾袋于垃圾桶内的位置，而且还能够在垃圾袋铺设完成时关闭风机15，以避免垃圾袋被吸入风机15、以使垃圾袋损坏的问题。这样，该垃圾袋检测装置有利于防护垃圾袋、以节约资源，减少了智能垃圾桶存在的安全隐患，提升了稳定性和可靠性。
一些实施例中，红外发射管13和红外接收管14，其中一者设置在垃圾桶的内侧壁，另一者设置在垃圾桶的内底面，也就是说，可以是红外发射管13设置在垃圾桶的内侧壁、且红外接收管14设置在垃圾桶的内底面，也可以是红外发射管13设置在垃圾桶的内底面、且红外接收管14设置在垃圾桶的内侧壁，具体位置视情况而定。而且风机位于垃圾桶内侧壁和内底面的连接处，这样设置，由抽风口抽出的风始终能够经过红外发射管13和红外接收管14之间，在垃圾袋随风机15的吸力而进行铺设时，若垃圾袋未铺设完成，垃圾袋不会到达红外发射管13和红外接收管14之间，红外接收管14也就不会形成第一感应信号；若垃圾袋铺设完成，垃圾袋便会处于红外发射管13和红外接收管14之间，使得红外接收管14形成第一感应信号，进而控制机构通过接收到的第一感应信号控制风机15停止。
进一步地，当红外发射管13位于垃圾桶的内底面、红外接收管14位于垃圾桶的内侧壁时，红外发射管13的发射中心线与垃圾桶的内底面形成的夹角α为30-50度，红外接收管14的接收中心线与垃圾桶的内侧壁的竖直方向形成的夹角β为38-58度，如图1所示，内侧壁的竖直方向即是与垃圾桶的底面垂直的方向。其中，夹角α越小，越容易发生误触，进而影响垃圾袋的位置检测，而夹角α越大，红外接收管14的安装距离就越远，既不利于检测也不利于安装。如此设置，既能够节约成本又便于组装，而且还使得检测结构更加准确。
当红外接收管14位于垃圾桶的内底面、红外发射管13位于垃圾桶的内侧壁时，红外接收管14的接收中心线与垃圾桶的内底面形成的夹角α为30-50度、且红外发射管13的发射中心线与垃圾桶的内侧壁的竖直方向形成的夹角β为38-58度。其中，夹角α越小，越容易发生误触，进而影响垃圾袋的位置检测，而夹角α越大，红外发射管13的安装距离就 越远，既不利于检测也不利于安装。如此设置，既能够节约成本又便于组装，而且还使得检测结构更加准确。
本实施例的优选方案中，夹角α设置为40度，夹角β设置为48度，这样，安装距离适中，检测效果较好，既能够节约成本又便于组装。
其中，红外发射管13发出的红外线的最大角度γ设置为93度，红外接收管14接收的最大角度δ设置为44度，如图1所示，这样，发射和接收的范围较广，有利于提升垃圾袋位置检测的准确性。
在另一种实施例中，红外接收管14和红外发射管13均位于垃圾桶的内侧壁、且靠近垃圾桶内底面的位置，这时风机设置在垃圾桶的内底面，这样设置，由抽风口抽出的风始终能够经过红外发射管13和红外接收管14之间，在垃圾袋随风机15的吸力而进行铺设时，若垃圾袋未铺设完成，垃圾袋不会到达红外发射管13和红外接收管14之间，红外接收管14也就不会形成第一感应信号；若垃圾袋铺设完成，垃圾袋便会处于红外发射管13和红外接收管14之间，使得红外接收管14形成第一感应信号，进而控制机构通过接收到的第一感应信号控制风机15停止。
如图2-图3所示，在结构设计上对红外发射管13和红外接收管14的位置和角度进行了固定，以确保红外发射管13发射角度正对红外接收管14，并在结构上对红外发射管13和红外接收管14的发射角度进行了限位，防止红外信号沿垃圾袋与桶底的缝隙处传输至红外接收管14处。即红外发射管13与红外接收管14均通过本领域已知的防呆结构固定在垃圾桶的内壁，这样，能够将红外发射管13和红外接收管14的安装角度固定，便于将红外发射管13和红外接收管14的位置和角度安装正确，省时省力，提升了工作效率。
进一步地，防呆结构包括有凹槽和凸起，凸起能够嵌在凹槽内，而且，在垃圾桶的内壁还设置有供红外发射管13和红外接收管14嵌入安装的内腔，通过该内腔的朝向方向可以限制红外发射管13和红外接收管14的角度。其中，凹槽和凸起，其中一者位于红外接收管14或红外发射管13的外壁，另一者位于内腔的内壁。而且凹槽沿轴向设置，比如，当凸起设在红外接收管14或红外发射管13的外壁、且凹槽设在内腔的内壁时，上述“轴向”即为内腔的延伸方向，这样，通过具有凹槽和凸起的防呆结构，能够将红外发射管13和红外接收管14的安装角度固定，便于将红外发射管13和红外接收管14的位置和角度安装正确，省时省力，提升了工作效率。
在一些实施例中，红外发射管13和红外接收管14都有在结构上做防水防尘的处理，即在垃圾桶的内壁密封连接有防尘遮光的透明防护罩16，将红外发射管13和红外接收管14分别位于防护罩16内，由于防护罩16为透明结构，能够使红外线穿过，进而便于实现垃圾 袋的位置检测。当然，防护罩16可以设置有两个、分别容纳红外发射管13和红外接收管14，这样，便于节省材料，降低成本。防护罩16的结构如图4所示，该防护罩16的材质可以为塑料，也可以为玻璃，视具体情况而定。
其中，控制机构还可以包括有MCU(Microcontroller Unit，微控制单元)、红外发射接收电路，该红外发射接收电路由放大电路、调制解调电路等组成，如图5所示，通过MCU产生38KHz的调制载波发送至红外发射管13，红外发射管13发射的载波信号无障碍物(垃圾袋)干扰时则顺利发射至红外接收管14，红外发射管13发射的载波信号有障碍物(垃圾袋)干扰时则不能顺利发射至红外接收管14，使得红外接收管14接收到的调制载波较弱，甚至为零，进而实现对垃圾袋位置的检测。
外接收管14接收载波信号后经过增益，解调，送至比较器输出信号，此方法具有极强的抗干扰能力，可以在恶劣的光源下及太阳光下保持正常；由于对红外发射管13的功率进行了限制，红外发射管13发出的信号无法穿透垃圾袋传输至红外接收管14处，若红外接收管14接收不到红外信号，则判断桶内存在垃圾袋，进而再控制风机15停止运行。
本具体实施方式还提供了一种智能垃圾桶，包括有垃圾袋检测装置，该垃圾袋检测装置为如上实施例中所表述的垃圾袋检测装置。如此设置，在智能垃圾桶更换垃圾袋时，本垃圾袋检测装置能够检测出垃圾袋与垃圾桶内的位置，而且还能够在垃圾袋铺设完成时关闭风机15，以避免垃圾袋被吸入风机15、以使垃圾袋损坏的问题。这样，该垃圾袋检测装置有利于防护垃圾袋、以节约资源，减少了智能垃圾桶存在的安全隐患，挺升了稳定性和可靠性。该有益效果的推导过程与上述垃圾袋检测装置的推导过程大体类似，故本文不再赘述。
参考附图7-图8，一些实施例中智能垃圾桶还包括有风机15，该风机15包括外壳和离心叶轮1，离心叶轮1设置在外壳的内部，该风机15还包括驱动离心叶轮1转动的电机2，外壳沿离心叶轮1的轴向设有进风口3，外壳沿离心叶轮1的径向设有出风口，且进风口3与垃圾桶本体内壁的抽风口相连通，出风口与垃圾桶本体的外部相连通，通过电机2带动离心叶轮1旋转，从垃圾桶本体的底部的抽风口把垃圾桶本体内部的空气抽出来，使大气压远远大于垃圾桶本体内部的气压，大气压压着垃圾袋往下运动，直到袋底接触垃圾桶桶底，完成垃圾袋的铺设动作，然后关闭电机即可。
特别地，离心叶轮1的各个叶片4与进风口3对应的位置沿进风口3的方向设置有凸起部5，如此设置，切风面增大，提高了进风量，吸力加大，抽气更迅速，缩短了抽气的时间，同时节省了垃圾袋铺设的时间，提高了工作效率。
需要说明的是，凸起部5为片状结构，且凸起部5的厚度与叶片4的厚度相等，为了简化加工工艺，可以设置凸起部5和叶片4为一体式结构，既能满足加大切风面要求，又方便 加工。
如此设置，解决了现有的智能垃圾桶所使用的风机吸力不大的问题。
在优选方案中，离心叶轮1还包括与各个叶片4固定连接的轮盘6，如图8所示，叶片4与轮盘6垂直设置，在本实施例中，叶片4可以设置为弧形结构，且叶片4远离轮盘6中心位置的一端的厚度小于叶片4其余部分的厚度，如此设置，能够有效地引导气流流向，及时排风。
需要说明的是，其中一种实施例中，外壳包括顶盖7和底盖8，且顶盖7和底盖8可拆卸地连接，进风口3设置在顶盖7上，顶盖7和底盖8之间的间隙形成出风口。
在优选方案中，顶盖7和底盖8可以设置为长方形结构，进一步地，顶盖7和底盖8之间可以卡接，顶盖7的底端设有至少两个固定柱9，底盖8上设有至少两个凹槽10，固定柱9能够伸入到凹槽10内且与凹槽10紧密配合，具体地，可以设置有四个固定柱9，分别设在顶盖7的四个角上，如此，能够保证连接的稳固性。
如此，外壳为四面镂空结构，另外，可以把进风口3的横截面形状设置为圆形，此时离心叶轮1利用离心原理，将气流从圆形进风口3吸入，四面镂空均可以排气，排气迅速。当然，进风口3也可以为其他的形状。
同时，离心叶轮1上设有与电机2的主轴连接配合的轴孔，底盖8上设有供电机2的主轴穿过的通孔11，可以先将底盖8使用螺丝12与电机2固定，然后将离心叶轮1装入电机2的输出轴，最后将顶盖7卡入底盖8，形成风机。
如此设置，通过风机15从垃圾桶的抽风口把垃圾桶本体内部的空气抽出，使大气压高于垃圾桶本体内部的气压，此时大气压就把无断点的垃圾袋压着往下运动，垃圾袋到达桶底时，风机关闭，此时把垃圾袋铺在垃圾桶本体内部，完成了垃圾袋的铺设，无需再使用人工铺设垃圾袋，非常方便实用。
本具体实施方式还提供了一种智能垃圾桶的自动换袋控制方法，基于如上所表述的智能垃圾桶，包括有：
启动风机15；
判断红外接收管是否形成第一感应信号；
如果是，则控制风机15停止。
进一步地，在启动风机15之前，还应检测垃圾桶内是否存有垃圾袋，以防止打包后的垃圾袋未被取出、以影响铺设时垃圾袋位置检测的准确性，如图6所示的流程图，具体控制方法包括有：
开启垃圾桶的大翻盖后，判断是否形成第一感应信号；
如果是，则报警；
如果否，则关闭大翻盖，并启动风机15。
判断红外接收管是否形成第一感应信号；
如果是，则控制风机15停止。
需要说明的是，“大翻盖”可以为用于盛放垃圾袋的内筒，其中，大翻盖的开合属于打包程序的一部分，也就是说，将盛有垃圾的垃圾袋封口熔断后，垃圾袋落到内筒中，开启大翻盖可以将内筒倾斜、以便将垃圾袋取出；当系统检测到垃圾袋被取出后，再关闭大翻盖，即将内筒恢复原状，以便进行铺设垃圾袋的程序步骤。其中“报警”优选为蜂鸣器报警提示，这样以提醒操作人员将垃圾袋取出，进而能够避免垃圾袋滞留在内筒内的情况。
实施例2
参考图9-图11，为本发明的智能垃圾桶的垃圾袋检测装置的第二个实施例。为了方便理解，本实施例中与实施例1相同的部件采用相同的标号。
如图所示，本实施例的垃圾袋检测装置包括有发射端13和接收端14，其中，发射端13能够发射出信号，该信号经过垃圾袋17或物体的反射，使部分信号反射以形成反射信号，而接收端14用于接收该反射信号，而且，接收端14和发射端13均设置在垃圾桶的内壁，在垃圾袋17铺设时自上而下逐渐靠近该装置，随着垃圾袋17靠近距离越近，其反射信号越强烈，接收端14接受的反射信号也越强，进而实现垃圾袋17在垃圾桶内位置的精确感知。
其中，所说的内壁可以是垃圾桶的内侧壁，也可以是垃圾桶的内底面，具体布置位置无绝对要求，只要其发射端13与接收端14不直接相对布置即可，其原理为利用发射端13向外发射信号，当有垃圾袋17及其他物体靠近时，经垃圾袋17或物体反射，使部分反射信号进入接收端14。
进一步地，所述垃圾袋检测装置还可以包括有风机和控制机构，其中，风机用于对垃圾桶进行抽风，以使得垃圾袋17受大气压强的作用，被压进垃圾桶内部，完成垃圾袋17的自动铺设；发射端13、接收端14和风机均可通信地与控制机构连接，接收端14接收的反射信号传输给控制结构，在控制机构的作用下，根据接收端14接收的反射信号的强度控制风机的运行状态，以及自动换袋时各个机构的工作状态。而且，控制机构可以通过反射信号强弱不同来定位垃圾桶内垃圾袋17的位置情况，能够形成连续位置感知信号，使控制系统判断执行不同程序输出。
如此设置，在智能垃圾桶换袋时，该垃圾袋检测装置能够检测出垃圾袋17于垃圾桶内的位置，并根据检测到的垃圾袋17的位置信息来进行控制，当垃圾袋17未铺设完成时，维 持铺设的运行，当垃圾袋17铺设完成后，控制铺设的停止，而且还能够避免垃圾袋17被吸入风机造成垃圾袋17损坏的问题。这样，该垃圾袋检测装置有利于防护垃圾袋、以节约资源，减少了智能垃圾桶存在的安全隐患，提升了稳定性和可靠性。
与实施例1相同，本实施例中，发射端13优选采用红外发射管，相应的，接收端14选用红外接收管，也就是说，是通过发射红外信号，经反射后再接收反射的红外信号。
如此设置，通过使用红外线装置，经过发射、反射、接收的过程，简单可靠地实现了检测垃圾袋17于垃圾桶内的位置的功能，有效地防止了垃圾袋17部分在自动化换袋过程中被损坏的问题，而且，智能垃圾桶在进一步智能化的过程中需要桶内垃圾袋17位置信息，将该位置检测装置应用于垃圾桶桶内，有利于提升自动铺设垃圾袋17的质量以及智能垃圾桶性能的智能化程度。
在一些实施例中，发射端13和接收端14均设置在垃圾桶的内底面，在垃圾袋17铺设时自上而下逐渐靠近垃圾桶的内底面，随着垃圾袋17靠近距离越近，其反射信号越强烈，接收端14接受的反射信号也越强，进而实现垃圾袋17在垃圾桶内位置的精确感知。而且，发射端13的发射中心和接收端14的接收中心均朝上设置，这里所说的“上”“下”，本装置为如图1所摆放位置时之所指。这样，能够减少该装置在发射、反射、接收过程中的路径，而且，发射中心的发射的信号强度较强，接受中心接受信号的能力较强，这样，既缩短了感应距离，又增强了信号强度，有利于提高装置的精确性和及时性。
在一些实施例中，如图12所示，所述发射端13与所述接收端14均设置在所述垃圾桶的内侧壁，且所述发射端13的发射中心与所述接收端14的接收中心均朝桶内设置。
在结构设计上同样对发射端13和接收端14的位置和角度进行了固定，以确保发射端13发射角度正对接收端14，并在结构上对发射端13和接收端14的发射角度进行了限位，防止红外信号沿垃圾袋17与桶底的缝隙处传输至接收端14处。具体地，所述发射端13与接收端14均通过现有已知的防呆结构固定在垃圾桶的内壁，这样，能够将发射端13和接收端14的安装角度固定，便于将发射端13和接收端14的位置和角度安装正确，一次性安装，且安装相对位置和角度可以相对灵活，便于安装，省时省力，提升了工作效率。
在一些实施例中，发射端13和接收端14都有在结构上做防水防尘的处理，即在垃圾桶的内壁密封连接有透明的防护罩16，将发射端13和接收端14分别位于防护罩16内，由于防护罩16为透明结构，能够使信号穿过，进而便于实现垃圾袋17的位置检测。当然，防护罩16可以设置有两个、分别容纳发射端13和接收端14，这样，便于节省材料，降低成本。防护罩16的结构，该防护罩16的材质可以为塑料，也可以为玻璃，视具体情况而定。
其中，控制机构还可以包括有MCU(Microcontroller Unit，微控制单元)、红外发射 接收电路，该红外发射接收电路由放大电路、调制解调电路等组成，如图10所示，通过MCU产生38KHz的调制载波发送至发射端，发射端发射的载波信号无障碍物(垃圾袋17)反射时则不会进入接收端，发射端发射的载波信号有障碍物(垃圾袋17)反射时则会有部分信号反射至接收端，使得接收端接收到调制载波信号，通过分析比较信号强弱，进而实现对垃圾袋17位置的检测。
接收端14接收载波信号后经过增益，解调，送至比较器输出信号，此方法具有极强的抗干扰能力，可以在恶劣的光源下及太阳光下保持正常；由于对发射端13的功率进行了限制，使得接收端能够顺利接收到反射信号，并根据接收到的反射信号来判断桶内垃圾袋17的位置信息，进而再控制风机15的运行状态。
本具体实施方式还提供了一种智能垃圾桶，包括有垃圾袋检测装置，该垃圾袋检测装置为如上实施例中所表述的垃圾袋检测装置。如此设置，在智能垃圾桶更换垃圾袋17时，本垃圾袋检测装置能够检测出垃圾袋17与垃圾桶内的位置，而且还能够在垃圾袋17铺设完成时关闭风机15，以避免垃圾袋17被吸入风机15、以使垃圾袋17损坏的问题。这样，该垃圾袋检测装置有利于防护垃圾袋17、以节约资源，减少了智能垃圾桶存在的安全隐患，提升了稳定性和可靠性。该有益效果的推导过程与上述垃圾袋检测装置的推导过程大体类似，故本文不再赘述。
以上所述，仅为本发明的具体实施方式，但本发明的保护范围并不局限于此，任何熟悉本技术领域的技术人员在本发明揭露的技术范围内，可轻易想到变化或替换，都应涵盖在本发明的保护范围之内。因此，本发明的保护范围应以所述权利要求的保护范围为准。

Claims (11)

  1. 一种智能垃圾桶的垃圾袋检测装置，其特征在于，包括用于发射信号的发射端(13)和用于接收信号的接收端(14)，所述发射端(13)和接收端(14)均设置于垃圾桶的内壁上，其中：
    所述接收端(14)接收的信号是发射端(13)发射的直接信号，或者是发射端(13)发射后经反射的信号。
  2. 如权利要求1所述的垃圾袋检测装置，其特征在于，还包括有用于对垃圾桶进行抽风的风机(15)以及控制机构，所述发射端(13)、所述接收端(14)和所述风机(15)可通信地连接至所述控制机构，所述控制机构根据所述接收端接收的信号控制所述风机(15)的运行状态，其中：
    i)所述接收端(14)接收的信号为发射端(13)发射的直接信号，当所述接收端(14)和所述发射端(13)之间的连线存在垃圾袋时，所述接收端(14)形成第一感应信号，所述控制机构根据所述第一感应信号控制所述风机(15)停止；或者，
    ii)所述接收端(14)接收的信号为发射端(13)发射后经反射的信号，当桶内存在垃圾袋且靠近所述接收端(14)和所述发射端(13)时，所述接收端(14)形成第一感应信号，所述控制机构根据所述第一感应信号控制所述风机(15)停止。
  3. 如权利要求2所述的垃圾袋检测装置，其特征在于：
    所述发射端(13)为红外发射管，所述接收端(14)为红外接收管；或者，
    所述发射端(13)为超声波发射装置，所述接收端(14)为超声波接收装置。
  4. 如权利要求2所述的垃圾袋检测装置，其特征在于，所述接收端(14)接收的信号为发射端(13)发射的直接信号，其中：
    i)所述发射端(13)位于所述垃圾桶的内底面、所述接收端(14)位于所述垃圾桶的内侧壁，所述发射端(13)的发射中心线与所述垃圾桶的内底面形成的夹角α为30-50度、且所述接收端(14)的接收中心线与所述垃圾桶的内侧壁的竖直方向形成的夹角β为38-58度；或者，
    ii)所述接收端(14)位于所述垃圾桶的内底面、所述发射端(13)位于所述垃圾桶的内侧壁时，所述接收端(14)的接收中心线与所述垃圾桶的内底面形成的夹角α为30-50度、且所述发射端(13)的发射中心线与所述垃圾桶的内侧壁的竖直方向形成的夹角β为38-58度。
  5. 如权利要求2所述的垃圾袋检测装置，其特征在于，所述接收端(14)接收的信号为发射端(13)发射的直接信号，其中：
    所述发射端(13)与所述接收端(14)相对设置在所述垃圾桶的内侧壁，且所述发射端(13)与所述接收端(14)均靠近所述垃圾桶的内底面。
  6. 如权利要求2所述的垃圾袋检测装置，其特征在于，所述接收端(14)接收的信号为发射端(13)发射后经反射的信号，其中：
    i)所述发射端(13)与所述接收端(14)均设置在所述垃圾桶的内底面，且所述发射端(13)的发射中心与所述接收端(14)的接收中心均朝上设置；或者，
    ii)所述发射端(13)与所述接收端(14)均设置在所述垃圾桶的内侧壁，且所述发射端(13)的发射中心与所述接收端(14)的接收中心均朝桶内设置。
  7. 如权利要求1所述的垃圾袋检测装置，其特征在于，所述发射端(13)与所述接收端(14)均通过防呆结构固定在所述垃圾桶的内壁。
  8. 如权利要求1所述的垃圾袋检测装置，其特征在于，还包括有防尘遮光的防护罩(16)，所述防护罩(16)与所述垃圾桶的内壁连接，所述发射端(13)和所述接收端(14)分别位于所述防护罩(16)内。
  9. 一种智能垃圾桶，其特征在于，包括有如权利要求1-8任意一项所述的垃圾袋检测装置。
  10. 一种智能垃圾桶的自动换袋控制方法，所述的智能垃圾桶安装有权利要求4-6所述的垃圾袋检测装置，其特征在于，所述的自动换袋控制方法包括以下步骤：
    启动所述风机(15)；
    判断所述接收端(14)是否形成所述第一感应信号；
    如果是，则控制所述风机(15)停止。
  11. 如权利要求10所述的自动换袋控制方法，其特征在于，在启动所述风机(15)之前，还包括：
    开启垃圾桶的大翻盖后，判断是否形成所述第一感应信号；
    如果是，则报警；
    如果否，则关闭所述大翻盖，并启动所述风机(15)。
PCT/CN2018/104796 2018-06-16 2018-09-10 垃圾袋检测装置、智能垃圾桶及自动换袋控制方法 WO2019237527A1 (zh)

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