CN110140665A - A kind of feeding pet system and its surplus grain monitoring method - Google Patents

A kind of feeding pet system and its surplus grain monitoring method Download PDF

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Publication number
CN110140665A
CN110140665A CN201910449437.6A CN201910449437A CN110140665A CN 110140665 A CN110140665 A CN 110140665A CN 201910449437 A CN201910449437 A CN 201910449437A CN 110140665 A CN110140665 A CN 110140665A
Authority
CN
China
Prior art keywords
grain
magnitude
surplus
feeder
infrared
Prior art date
Legal status (The legal status 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 status listed.)
Pending
Application number
CN201910449437.6A
Other languages
Chinese (zh)
Inventor
吴琎
胡文峰
何振东
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Beijing Kitten and Puppy Technology Co Ltd
Original Assignee
Beijing Kitten and Puppy Technology Co Ltd
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
Application filed by Beijing Kitten and Puppy Technology Co Ltd filed Critical Beijing Kitten and Puppy Technology Co Ltd
Priority to CN201910449437.6A priority Critical patent/CN110140665A/en
Publication of CN110140665A publication Critical patent/CN110140665A/en
Priority to PCT/CN2020/087934 priority patent/WO2020238549A1/en
Priority to TW109115586A priority patent/TWI761830B/en
Pending legal-status Critical Current

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Classifications

    • AHUMAN NECESSITIES
    • A01AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
    • A01KANIMAL HUSBANDRY; CARE OF BIRDS, FISHES, INSECTS; FISHING; REARING OR BREEDING ANIMALS, NOT OTHERWISE PROVIDED FOR; NEW BREEDS OF ANIMALS
    • A01K29/00Other apparatus for animal husbandry
    • AHUMAN NECESSITIES
    • A01AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
    • A01KANIMAL HUSBANDRY; CARE OF BIRDS, FISHES, INSECTS; FISHING; REARING OR BREEDING ANIMALS, NOT OTHERWISE PROVIDED FOR; NEW BREEDS OF ANIMALS
    • A01K39/00Feeding or drinking appliances for poultry or other birds
    • A01K39/01Feeding devices, e.g. chainfeeders
    • AHUMAN NECESSITIES
    • A01AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
    • A01KANIMAL HUSBANDRY; CARE OF BIRDS, FISHES, INSECTS; FISHING; REARING OR BREEDING ANIMALS, NOT OTHERWISE PROVIDED FOR; NEW BREEDS OF ANIMALS
    • A01K5/00Feeding devices for stock or game ; Feeding wagons; Feeding stacks
    • GPHYSICS
    • G01MEASURING; TESTING
    • G01FMEASURING VOLUME, VOLUME FLOW, MASS FLOW OR LIQUID LEVEL; METERING BY VOLUME
    • G01F23/00Indicating or measuring liquid level or level of fluent solid material, e.g. indicating in terms of volume or indicating by means of an alarm
    • G01F23/22Indicating or measuring liquid level or level of fluent solid material, e.g. indicating in terms of volume or indicating by means of an alarm by measuring physical variables, other than linear dimensions, pressure or weight, dependent on the level to be measured, e.g. by difference of heat transfer of steam or water
    • G01F23/28Indicating or measuring liquid level or level of fluent solid material, e.g. indicating in terms of volume or indicating by means of an alarm by measuring physical variables, other than linear dimensions, pressure or weight, dependent on the level to be measured, e.g. by difference of heat transfer of steam or water by measuring the variations of parameters of electromagnetic or acoustic waves applied directly to the liquid or fluent solid material
    • G01F23/284Electromagnetic waves
    • G01F23/292Light, e.g. infrared or ultraviolet
    • GPHYSICS
    • G08SIGNALLING
    • G08BSIGNALLING OR CALLING SYSTEMS; ORDER TELEGRAPHS; ALARM SYSTEMS
    • G08B21/00Alarms responsive to a single specified undesired or abnormal condition and not otherwise provided for
    • G08B21/18Status alarms
    • G08B21/24Reminder alarms, e.g. anti-loss alarms

Abstract

The invention discloses a kind of feeding pet system and its surplus grain monitoring methods, including feeder and user terminal, feeder detects surplus grain residue magnitude by infrared detection module, fingerprint identification module, when detecting that surplus grain residue magnitude reaches default magnitude, user terminal receives and shows the remaining magnitude and adds grain prompt information, and prompting watches surplus grain residue magnitude in feeding person's feeder and has reached default magnitude.The function that surplus grain in feeder monitors automatically may be implemented by this method, and remind the situation for watching surplus grain deficiency in feeding person's feeder in time, avoid in feeder without surplus grain feeding pet.

Description

A kind of feeding pet system and its surplus grain monitoring method
Technical field
The present invention relates to feeding pet fields, particularly, are related to a kind of feeding pet system and its surplus grain monitoring method.
Background technique
Now with the raising of people's lives level, after having basic guarantee on substance, in this increasingly city In the society in city, interpersonal exchange more comes fewer, and instead, the personage for raising pet is more and more, pet at Important one of component part in family, status is also gradually increased.Many pet-breeders are that pet is equipped with feeder, existing The case where feeder for having in the market needs raiser to remove remaining pet grain in observation feeder has been forgotten to go once occurring watching feeding person Seeing in surplus grain and family does not have the case where pet grain, does not have the consequence of pet grain feeding pet when will cause feeding time.
Summary of the invention
For overcome the deficiencies in the prior art, the present invention, which provides one kind and can remind in time, watches the feeding insufficient pet of person's surplus grain Feeding systems and its surplus grain monitoring method.
The technical solution adopted by the present invention to solve the technical problems is:
A kind of feeding pet system, comprising: feeder and user terminal, the feeder include feeding module, infrared inspection Survey module and data transmission module;
The feeding module is equipped with grain storing barrel;
The infrared detection module, fingerprint identification module, for detecting surplus grain residue magnitude in the grain storing barrel, the surplus grain in the grain storing barrel When lower than default magnitude, Xiang Suoshu data transmission module sends trigger signal, and the trigger signal includes the remaining magnitude;
The data transmission module, for after receiving the trigger signal, Xiang Suoshu user terminal to send the residue Magnitude and plus grain prompt information;
The user terminal, for receiving and showing the remaining magnitude and add grain prompt information.
Further, the feeder is additionally provided with alarm modules, for being lower than default magnitude when the surplus grain residue magnitude When sound an alarm, remind user;
The alarm modules are to issue the LED light of feux rouges, and the LED light is always on and flashes two kinds of warning modes.
Further, the feeding module includes grain storing barrel, bung, pedestal and grain outlet, and the bung is located at described Above grain storing barrel, the pedestal is located at below the grain storing barrel, and the grain outlet is set to below grain storing barrel, is convenient for the grain storing barrel Interior pet grain leaks out.
Further, the infrared detection module, fingerprint identification module includes:
Infrared launcher, the infrared launcher is arranged at bung, for emitting infrared ray;
Infrared receiving device, the infrared receiving device setting is in base position, for receiving infrared launcher sending Infrared ray, according to the interior surplus grain residue magnitude for the available grain storing barrel of number for receiving infrared ray;
Infrared ray optocoupler, the infrared ray optocoupler are set to grain outlet two sides, leak out situation for detecting grain outlet pet grain.
Further, the user terminal receive plus grain prompt information after can also click purchase chain in user terminal Connect purchase pet grain.
A kind of surplus grain monitoring method based on feeding pet system described in preceding claim technical solution, including following step It is rapid:
The feeder detects surplus grain residue magnitude in the feeder by the infrared detection module, fingerprint identification module;
When the infrared detection module, fingerprint identification module detects that surplus grain is lower than default magnitude in the grain storing barrel, Xiang Suoshu data transmit mould Block sends trigger signal,
The data transmission module after receiving the trigger signal, Xiang Suoshu user terminal send the remaining magnitude with And add grain prompt information;
The user terminal receives and shows the remaining magnitude and adds grain prompt information.
Further, the feeder detects surplus grain residue magnitude packet in the feeder by the infrared detection module, fingerprint identification module It includes and surplus grain residue magnitude in grain storing barrel is obtained by the infrared launcher and infrared receiving device cooperation detection, by described Infrared ray optocoupler is by detecting whether grain outlet has pet grain to leak down to obtain whether surplus grain residue magnitude in feeder is zero.
Further, the default magnitude includes a quarter of surplus grain residue magnitude and surplus grain residue magnitude is 0 two Default magnitude.
Further, when surplus grain residue magnitude is lower than a quarter, LED light flashes always;User terminal shows surplus grain Remaining magnitude is lower than the information of a quarter and pops up the option for whether buying pet grain, and LED light is stopped after user makes a choice Only flash.
Further, when surplus grain residue magnitude is zero, LED light is always on;User terminal shows that surplus grain residue magnitude is zero Information and pop up whether buy the option of pet grain, LED light is extinguished after user makes a choice.
The utility model has the advantages that
Feeder detects surplus grain residue magnitude by infrared detection module, fingerprint identification module, when detecting that surplus grain residue magnitude reaches predetermined amount When value, user terminal receives and shows the remaining magnitude and adds grain prompt information, and it is surplus that surplus grain in feeding person's feeder is watched in prompting Margin value has reached default magnitude.The function that surplus grain in feeder monitors automatically may be implemented by this method, and remind in time The situation for watching surplus grain deficiency in feeding person's feeder avoids in feeder without surplus grain feeding pet.
Detailed description of the invention
Fig. 1 is a kind of feeding pet system structure diagram provided in an embodiment of the present invention;
Fig. 2 is a kind of surplus grain monitoring method flow chart provided in an embodiment of the present invention;
Fig. 3 is another feeding pet system structure diagram provided in an embodiment of the present invention;
Fig. 4 is a kind of feeder sectional structure chart provided in an embodiment of the present invention;
Fig. 5 be a kind of feeder surplus grain residue magnitude provided in an embodiment of the present invention be a quarter when workflow Figure;
The work flow diagram that Fig. 6 is a kind of feeder surplus grain residue magnitude provided in an embodiment of the present invention when being zero.
Specific embodiment
Present invention will be further explained below with reference to the attached drawings and examples.
Referring to Fig.1, the present invention provides a kind of feeding pet system, comprising: feeder and user terminal, feeder include feeding Eat module 11, infrared detection module, fingerprint identification module 12 and data transmission module 13;
Feeding module is equipped with grain storing barrel;
Infrared detection module, fingerprint identification module 12, for detecting surplus grain residue magnitude in grain storing barrel, surplus grain is lower than predetermined amount in grain storing barrel When value, trigger signal is sent to data transmission module 13, trigger signal includes remaining magnitude;
Data transmission module 13, for sending remaining magnitude to user terminal and grain being added to mention after receiving trigger signal Show information;
User terminal, for receiving and showing remaining magnitude and add grain prompt information.
The embodiment of the invention provides a kind of feeding pet system, feeder detects surplus grain residue by infrared detection module, fingerprint identification module Magnitude, by infrared detection surplus grain amount of storage, using infrared detection high sensitivity, penetrability is good a little, when detecting When surplus grain residue magnitude reaches default magnitude, user terminal receives and shows remaining magnitude and adds grain prompt information, and prompting is watched It supports surplus grain residue magnitude in person's feeder and has reached default magnitude.Surplus grain in feeder may be implemented by this method to monitor automatically Function, and remind watch the situation of surplus grain deficiency in feeding person's feeder in time, avoid in feeder without surplus grain feeding pet.
As a kind of improvement to above-described embodiment, as shown in figure 3, the present invention provides another feeding pet system, packet Include: feeder and user terminal, feeder include feeding module 31, infrared detection module, fingerprint identification module 32 and data transmission module 33;
Feeding module 31 is equipped with grain storing barrel;
As a kind of preferred implementation of the embodiment of the present invention, as shown in figure 4, feeding module 31 further includes storage tank lid 42, pedestal 43 and grain outlet 44, bung 42 are located at 41 top of grain storing barrel, and pedestal 43 is located at 41 lower section of grain storing barrel, grain outlet 44 Set on 41 lower section of grain storing barrel, leaked out convenient for pet grain in grain storing barrel 41.
Infrared detection module, fingerprint identification module 32, for detecting surplus grain residue magnitude in grain storing barrel 41, surplus grain is lower than pre- in grain storing barrel 41 If when magnitude, sending trigger signal to data transmission module 33, trigger signal includes remaining magnitude;
Further alternative, infrared detection module, fingerprint identification module 32 includes:
Infrared launcher 45, infrared launcher 45 is arranged at bung 42, for emitting infrared ray;
Infrared receiving device 46, infrared receiving device 46 are arranged at pedestal 43, send out for receiving infrared launcher 45 Infrared ray out, according to the interior surplus grain residue magnitude for the available grain storing barrel 41 of number for receiving infrared ray;
Infrared ray optocoupler 47, infrared ray optocoupler 47 are set to 44 two sides of grain outlet, leak out for detecting 44 pet grain of grain outlet Situation.
Data transmission module 33, for sending remaining magnitude to user terminal and grain being added to mention after receiving trigger signal Show information;
Optionally, data transmission module 33 transmits data by way of WiFi or bluetooth.
User terminal, for receiving and showing remaining magnitude and add grain prompt information;User terminal receive plus grain mention Show that pet grain is bought in the purchase link that can also be clicked in user terminal after information.
Optionally, feeder is additionally provided with alarm modules 34, for issuing when surplus grain is lower than default magnitude in grain storing barrel 41 Alarm;
Alarm modules 34 are to issue the LED light of feux rouges, and LED light is always on and flashes two kinds of warning modes.
A kind of feeding pet system provided in an embodiment of the present invention, alarm modules are used to remind user that surplus grain residue magnitude is low In default magnitude;Purchase connection can buy grain when user is connected to prompting, be bought elsewhere without going again, convenient The use of user.
The present invention also provides it is a kind of based on the above embodiment in feeding pet system surplus grain monitoring method embodiment, As shown in Figure 2, comprising the following steps:
S1: feeder detects surplus grain residue magnitude in feeder by infrared detection module, fingerprint identification module;
S2: it when infrared detection module, fingerprint identification module detects that surplus grain is lower than default magnitude in grain storing barrel, sends and touches to data transmission module It signals;
S3: data transmission module sends remaining magnitude after receiving trigger signal, to user terminal and adds grain prompt letter Breath;
S4: user terminal receives and shows remaining magnitude and adds grain prompt information.
A kind of surplus grain monitoring method provided in an embodiment of the present invention is by utilizing surplus grain storage in infrared detection feeder The case where, the surplus grain residue magnitude in feeder can be monitored automatically.
In some embodiments, feeder detects surplus grain residue magnitude packet in feeder by infrared detection module, fingerprint identification module in step S1 It includes and surplus grain residue magnitude in grain storing barrel is obtained by infrared launcher and infrared receiving device cooperation detection, pass through infrared ray Coupling is by detecting whether grain outlet has pet grain to leak down to obtain whether surplus grain residue magnitude in feeder is zero.
Testing principle: when surplus grain difference in feeder, the infrared ray that pedestal infrared receiving device receives is different, because This, the infrared receiving device of pedestal receive light number can thus lead to how much one-to-one correspondence of surplus grain in feeder Cross surplus grain residue magnitude in infrared detection feeder is how many.
When surplus grain amount of storage is zero in feeder, grain outlet infrared ray optocoupler stops without pet grain, optocoupler output The electric current of generation is one and determines value, and to guarantee the accurate of infrared ray optocoupler detection, electric current still maintains the determination value to say after 5 seconds There is no grain outflow at bright grain outlet;When feeding, grain outlet has the leakage of pet grain, the infrared ray quilt of infrared ray optocoupler transmitting Grain stops, and the current or voltage that optocoupler output generates becomes smaller or becomes zero.According to the electricity of the output end of infrared ray optocoupler Flow valuve can determine whether surplus grain amount of storage is zero in feeder.
In some embodiments, it is preferable that default magnitude includes a quarter and surplus grain residue magnitude of surplus grain residue magnitude It is 0 two default magnitudes.
As shown in figure 5, LED light flashes always when surplus grain residue magnitude is lower than a quarter;User terminal shows surplus grain Remaining magnitude is lower than the information of a quarter and the option for whether buying pet grain is popped up, and wherein user clicks the purchase of "Yes" key Pet grain is bought, purchase link is equipped in user terminal, click purchase link directly arrives purchase webpage and carries out grain purchase or point "No" key is hit to exit.LED light stops flashing after user makes a choice.
As shown in fig. 6, LED light is always on when surplus grain residue magnitude is zero;User terminal shows that surplus grain residue magnitude is zero Information and pop up whether buy the option of pet grain, wherein user clicks "Yes" key and buys pet grain, user terminal Interior to be equipped with purchase link, click is bought link and is directly exited to the progress grain purchase of purchase webpage or click "No" key.User LED light is extinguished after making a choice.
Default magnitude is set as a quarter of surplus grain residue magnitude and recognizes that surplus grain is less in feeder convenient for watching feeding person, Carry out the preparation that surplus grain is finished in feeder in advance, by default magnitude be set as surplus grain residue magnitude be zero convenient for notify poultry raiser feed Without surplus grain in feeder, adding pet grain in time is feeding pet.Alert methods are different in the case of two kinds, distinguish convenient for watching feeding person Surplus grain concrete condition in feeder.
It is understood that same or similar part can mutually refer in the various embodiments described above, in some embodiments Unspecified content may refer to the same or similar content in other embodiments.
Any process described otherwise above or method description are construed as in flow chart or herein, and expression includes It is one or more for realizing specific logical function or process the step of executable instruction code module, segment or portion Point, and the range of the preferred embodiment of the application includes other realization, wherein can not press shown or discussed suitable Sequence, including according to related function by it is basic simultaneously in the way of or in the opposite order, Lai Zhihang function, this should be by the application Embodiment person of ordinary skill in the field understood.
Those skilled in the art are understood that realize all or part of step that above-described embodiment method carries Suddenly be that relevant hardware can be instructed to complete by program, program can store in a kind of computer readable storage medium In, which when being executed, includes the steps that one or a combination set of embodiment of the method.
In the description of this specification, reference term " one embodiment ", " some embodiments ", " example ", " specifically show The description of example " or " some examples " etc. means specific features, structure, material or spy described in conjunction with this embodiment or example Point is contained at least one embodiment or example of the application.In the present specification, schematic expression of the above terms are not Centainly refer to identical embodiment or example.Moreover, particular features, structures, materials, or characteristics described can be any One or more embodiment or examples in can be combined in any suitable manner.
Although embodiments herein has been shown and described above, it is to be understood that above-described embodiment is example Property, it should not be understood as the limitation to the application, those skilled in the art within the scope of application can be to above-mentioned Embodiment is changed, modifies, replacement and variant.

Claims (10)

1. a kind of feeding pet system characterized by comprising feeder and user terminal, the feeder include feeding mould Block, infrared detection module, fingerprint identification module and data transmission module;
The feeding module is equipped with grain storing barrel;
The infrared detection module, fingerprint identification module, for detecting surplus grain residue magnitude in the grain storing barrel, surplus grain is lower than in the grain storing barrel When default magnitude, Xiang Suoshu data transmission module sends trigger signal, and the trigger signal includes the remaining magnitude;
The data transmission module, for after receiving the trigger signal, Xiang Suoshu user terminal to send the remaining magnitude And add grain prompt information;
The user terminal, for receiving and showing the remaining magnitude and add grain prompt information.
2. a kind of feeding pet system according to claim 1, it is characterised in that: the feeder is additionally provided with alarm mould Block, for being sounded an alarm when surplus grain is lower than default magnitude in the grain storing barrel;
The alarm modules are to issue the LED light of feux rouges, and the LED light is always on and flashes two kinds of warning modes.
3. a kind of feeding pet system according to claim 1, it is characterised in that: the feeding module include grain storing barrel, Bung, pedestal and grain outlet, the bung are located above the grain storing barrel, and the pedestal is located at below the grain storing barrel, institute Grain outlet is stated below grain storing barrel, is leaked out convenient for pet grain in the grain storing barrel.
4. a kind of feeding pet system according to claim 3, it is characterised in that: the infrared detection module, fingerprint identification module includes:
Infrared launcher, the infrared launcher is arranged at bung, for emitting infrared ray;
Infrared receiving device, the infrared receiving device setting is in base position, for receiving the infrared of infrared launcher sending Line, according to the interior surplus grain residue magnitude for the available grain storing barrel of number for receiving infrared ray;
Infrared ray optocoupler, the infrared ray optocoupler are set to grain outlet two sides, leak out situation for detecting grain outlet pet grain.
5. a kind of feeding pet system according to claim 1, it is characterised in that: the user terminal receive plus grain mention Show that pet grain is bought in the purchase link that can also be clicked in user terminal after information.
6. a kind of surplus grain monitoring method based on feeding pet system described in claim 1-5, which is characterized in that including following step It is rapid:
The feeder detects surplus grain residue magnitude in the feeder by the infrared detection module, fingerprint identification module;
When the infrared detection module, fingerprint identification module detects that surplus grain is lower than default magnitude in the grain storing barrel, Xiang Suoshu data transmission module hair Trigger signal is sent,
After receiving the trigger signal, Xiang Suoshu user terminal sends the remaining magnitude and adds the data transmission module Grain prompt information;
The user terminal receives and shows the remaining magnitude and adds grain prompt information.
7. a kind of surplus grain automatic monitoring method according to claim 6, it is characterised in that: the feeder passes through described red It includes passing through the infrared launcher and infrared receiving device that outer detection module, which detects surplus grain residue magnitude in the feeder, Cooperation detection obtains surplus grain residue magnitude in grain storing barrel, by the infrared ray optocoupler by detecting whether grain outlet has pet grain Food leaks down to obtain whether surplus grain residue magnitude in feeder is zero.
8. a kind of surplus grain automatic monitoring method according to claim 6, it is characterised in that: the default magnitude includes surplus grain The a quarter and surplus grain residue magnitude of remaining magnitude are 0 two default magnitudes.
9. a kind of surplus grain automatic monitoring method according to claim 8, it is characterised in that: when surplus grain residue magnitude is lower than four When/mono-, LED light flashes always;Whether user terminal shows information of the surplus grain residue magnitude lower than a quarter and pops up and purchase The option of pet grain is bought, LED light stops flashing after user makes a choice.
10. a kind of surplus grain automatic monitoring method according to claim 8, it is characterised in that: when surplus grain residue magnitude is zero When, LED light is always on;User terminal shows the information that surplus grain residue magnitude is zero and whether pop-up buys the option of pet grain, LED light is extinguished after user makes a choice.
CN201910449437.6A 2019-05-28 2019-05-28 A kind of feeding pet system and its surplus grain monitoring method Pending CN110140665A (en)

Priority Applications (3)

Application Number Priority Date Filing Date Title
CN201910449437.6A CN110140665A (en) 2019-05-28 2019-05-28 A kind of feeding pet system and its surplus grain monitoring method
PCT/CN2020/087934 WO2020238549A1 (en) 2019-05-28 2020-04-30 Pet feeding system and surplus food monitoring method thereof
TW109115586A TWI761830B (en) 2019-05-28 2020-05-11 A kind of pet feeding system and remaining food monitoring method

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201910449437.6A CN110140665A (en) 2019-05-28 2019-05-28 A kind of feeding pet system and its surplus grain monitoring method

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CN110140665A true CN110140665A (en) 2019-08-20

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TW (1) TWI761830B (en)
WO (1) WO2020238549A1 (en)

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WO2020238549A1 (en) * 2019-05-28 2020-12-03 北京猫猫狗狗科技有限公司 Pet feeding system and surplus food monitoring method thereof
CN114223563A (en) * 2021-11-15 2022-03-25 温州市职业中等专业学校 Automatic pet feeding machine with residual grain reminding function based on intelligent home
CN115039708A (en) * 2022-06-21 2022-09-13 深圳市小萌宠物科技有限公司 Intelligent feeder for pet, working method for pet feeder and storage device
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CN117426316A (en) * 2023-12-20 2024-01-23 北京猫猫狗狗科技有限公司 Automatic pet feeding machine capable of being disassembled and assembled immediately

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CN114223563A (en) * 2021-11-15 2022-03-25 温州市职业中等专业学校 Automatic pet feeding machine with residual grain reminding function based on intelligent home
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Application publication date: 20190820