Timed feeding device

Abstract

The utility model provides a timed feeding device. The timed feeding device comprises a controller; the input device is connected with the controller through an input circuit and used for setting feeding information, and the feeding information comprises feeding time and feeding amount; the feeding device comprises a grain storage bin and a driving motor; the controller comprises a BPC electric wave receiving circuit used for receiving a BPC low-frequency time code signal transmitted by an electric wave transmitting tower, and the BPC low-frequency time code signal comprises time coding information; the analysis circuit is used for decoding the time coding information based on the BPC coding rule to obtain the current time; and the control circuit is configured to control the driving motor to work according to the feeding time and the feeding amount when the current time reaches the feeding time, so that the bin door of the grain storage bin is opened for the corresponding duration at the feeding time. Accurate time information is provided by using a BPC low-frequency time code time service technology, and high-precision control of feeding time is realized.

Description

Technical Field

[0001] The utility model relates to the technical field of pet feeding, and further relates to a timed feeding device. Background Art

[0002] With the development of society, many families like to keep pets and regard them as part of the family. In daily life, pets need to be fed regularly to ensure that they have a regular diet. However, when the owner is too busy and has no time, or is away for a long time, there is no way to feed the pet on time. Therefore, some devices that can automatically feed pets have appeared on the market.

[0003] However, existing automatic pet feeding devices generally use simple mechanical timers or electronic clocks to control feeding time, which makes the time in the automatic feeding device prone to large time errors and inaccurate time, making it difficult to effectively ensure the pet's eating habits. Utility Model Content

[0004] The utility model aims to provide a timed feeding device, which uses BPC low-frequency time code timing technology to provide accurate time information, realizes high-precision control of feeding time, and solves the problem of insufficient feeding time in the prior art.

[0005] The technical solutions provided by this utility model are as follows:

[0006] The utility model provides a timed feeding device, comprising:

[0007] Controller;

[0008] An input device, connected to the controller via an input circuit, for setting feeding information, the feeding information including: feeding time and feeding amount;

[0009] A feeding device, comprising: a grain storage bin and a driving motor;

[0010] The controller includes:

[0011] A BPC radio wave receiving circuit, configured to receive a BPC low-frequency time code signal transmitted from a radio wave transmitting tower, wherein the BPC low-frequency time code signal includes time code information;

[0012] A parsing circuit, configured to decode the time encoding information based on a BPC encoding rule to obtain a current time;

[0013] The control circuit is configured to: when the current time reaches the feeding time, control the drive motor to operate according to the feeding time and the feeding amount, so that the door of the grain storage bin is opened for a corresponding period of time during the feeding time.

[0014] In some embodiments, the BPC radio wave receiving circuit includes: a magnetic rod antenna for receiving the BPC low-frequency time code signal transmitted by the radio wave transmitting tower.

[0015] In some embodiments, the parsing circuit includes:

[0016] a signal amplifying sub-circuit, the signal amplifying sub-circuit being connected to the BPC radio wave receiving circuit and being used to receive and amplify the BPC low-frequency time code signal sent by the BPC radio wave receiving circuit;

[0017] A detection sub-circuit, the detection sub-circuit element being connected to the signal amplification sub-circuit and configured to demodulate an analog time signal from the amplified BPC low-frequency time code signal;

[0018] A shaping subcircuit is connected to the detection subcircuit and is used to shape the analog time signal into a time pulse signal.

[0019] In some embodiments, the controller further comprises: an RTC clock circuit for outputting system time;

[0020] The controller adjusts the system time of the RTC clock circuit according to the current time;

[0021] The control circuit cannot receive the BPC low-frequency time code signal in the BPC radio wave receiving circuit, and when the system time reaches the feeding time, controls the drive motor to operate according to the feeding time and the feeding amount, so that the door of the grain storage bin is opened for the expected duration at the feeding time.

[0022] In some embodiments, the RTC clock circuit includes:

[0023] Clock chip;

[0024] A clock source, connected to the clock chip, for generating a stable clock signal;

[0025] a power supply unit, the power supply unit being connected to the clock source and the clock chip respectively, and being used to supply power to the clock source and / or to the clock chip;

[0026] The I2C pull-up resistor unit is connected in parallel with the power supply unit and is used to limit the power supply voltage of the power supply unit.

[0027] In some embodiments, the grain storage bin is provided with a plurality of grain storage chambers for storing different types of food, and each of the grain storage chambers corresponds to a drive motor;

[0028] The feeding information also includes: feeding type information;

[0029] The control circuit is further used to control the corresponding driving motor to operate according to the feeding type information, so that the door of the grain storage chamber corresponding to the feeding type information is opened for a corresponding period of time during the feeding time.

[0030] In some embodiments, the feeding device further includes: an infrared detection sensor, which is disposed in the grain storage bin, and the infrared detection sensor is connected to the controller via an infrared detection circuit for detecting the remaining amount of food.

[0031] In some embodiments, the infrared detection circuit includes: a filter circuit, a first end of the filter circuit is connected to the infrared detection sensor, and a second end of the filter circuit is grounded, for filtering the photoelectric signal generated by the infrared detection sensor.

[0032] In some embodiments, the feeding device further includes: a power supply, wherein the power supply is connected to the drive motor and is used to supply power to the drive motor.

[0033] In some embodiments, the input device includes a display screen, and the display screen is used to display the feeding information and the current time.

[0034] Compared with the prior art, the timing feeding device provided by the present invention has the following beneficial effects:

[0035] The BPC radio wave receiving circuit receives the BPC low-frequency time code signal, extracts the time code information from the BPC low-frequency time code signal, and decodes the time code information according to the BPC encoding rules to obtain accurate time information, thereby achieving high-precision control of the current time. The controller can accurately feed the pet based on the current time, the set feeding time and the feeding amount, meeting the pet owner's demand for precise control of pet feeding, improving the accuracy of feeding time, and solving the problem of inaccurate feeding time in the existing technology.

[0036] At the same time, the present application involves fewer circuit components and a streamlined circuit, which is conducive to cost control.

[0037] In addition, the user can conveniently set and adjust feeding information such as feeding time and feeding amount through the input device, and the operation is simple. BRIEF DESCRIPTION OF THE DRAWINGS

[0038] Other features, objects, and advantages of the present invention will become more apparent upon reading the detailed description of the non-limiting embodiments made with reference to the following drawings. The drawings are provided for the purpose of illustrating preferred embodiments only and are not to be construed as limiting the present invention. Like reference numerals are used throughout the drawings to denote like parts.

[0039] Figure 1 This is a structural diagram of a timing feeding device of the utility model;

[0040] Figure 2 This is a structural diagram of an embodiment of a timed feeding device of the present invention;

[0041] Figure 3 This is a circuit block diagram of an analytical circuit in a timed feeding device of the utility model;

[0042] Figure 4 This is a circuit block diagram of an RTC clock circuit in a timing feeding device of the utility model;

[0043] Figure 5 This is a circuit block diagram of an infrared detection sensor in a timed feeding device of the utility model;

[0044] Figure 6 This is a circuit block diagram of a controller in a timing feeding device of the utility model;

[0045] Figure 7 This is a circuit block diagram of an embodiment of an input device in a timed feeding device of the utility model;

[0046] Figure 8 This is a circuit block diagram of an embodiment of an input device in a timed feeding device of the utility model;

[0047] Figure 9 The utility model is a circuit block diagram of a driving motor in a timing feeding device. DETAILED DESCRIPTION

[0048] In the following description, specific details such as specific system structures and technologies are provided for illustration rather than limitation to facilitate a thorough understanding of the embodiments of the present application. However, it should be clear to those skilled in the art that the present application may be implemented in other embodiments without these specific details. In other cases, detailed descriptions of well-known systems, devices, circuits, and methods are omitted to avoid obstructing the description of the present application with unnecessary details.

[0049] It will be understood that when used in this specification and the appended claims, the term "comprising" indicates the presence of the described features, integers, steps, operations, elements and / or components, but does not preclude the presence or addition of one or more other features, integers, steps, operations, elements, components and / or collections.

[0050] It should be further understood that the term "and / or" used in this specification and the appended claims refers to and includes any and all possible combinations of one or more of the associated listed items.

[0051] In addition, in the description of the present application, the terms "first", "second", etc. are only used to distinguish the description and cannot be understood as indicating or implying relative importance.

[0052] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the specific implementation methods of the present invention will be described below with reference to the accompanying drawings. Obviously, the drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings and other implementation methods can be obtained based on these drawings without inventive work.

[0053] Many people regard their pets as spiritual companions, but it is difficult to take care of them in real time when they are busy at work or on business trips. To meet this demand, many types of pet feeding equipment have appeared on the market. Although they can achieve timed and quantitative feeding, they generally use electronic clocks to calculate the time. The feeding time is not accurate enough, making it difficult to achieve refined feeding.

[0054] In order to solve the above technical problems, the utility model provides a timed feeding device, which uses BPC radio wave timing technology to provide accurate time information, realizes high-precision control of feeding time, and solves the problem of inaccurate feeding time in the existing technology.

[0055] Hereinafter, this solution will be described in detail with reference to the accompanying drawings.

[0056] In one embodiment, the present invention provides a timed feeding device, such as Figure 1 As shown, it includes: a controller 10, an input device 20 and a feeding device 30. The input device 20 is connected to the controller 10 through an input circuit and is used to set feeding information, wherein the feeding information includes: feeding time and feeding amount.

[0057] During implementation, the controller 10 includes a BPC radio wave receiving circuit 200, an analysis circuit 100, and a control circuit 300. The BPC radio wave receiving circuit 200 is used to receive the BPC low-frequency time code signal transmitted from the radio wave transmission tower. The BPC low-frequency time code signal includes time code information. The analysis circuit 100 is used to decode the time code information based on the BPC encoding rules to obtain the current time. The control circuit 300 is configured to: when the current time reaches the feeding time, control the drive motor according to the feeding time and feeding amount, so that the grain storage door is open for a corresponding period of time during the feeding time.

[0058] In a specific implementation, the BPC low-frequency time code signal includes time code information, and the current time can be obtained by decoding the time code information according to the BPC coding rules. Specifically, the decoding method is a software decoding method using timed sampling.

[0059] In implementation, PBC encoding consists of square wave pulses of different widths. The square wave pulses include four width states, namely 0.1 second, 0.2 second, 0.3 second, and 0.4 second. These width states represent quaternary 0, 1, 2, and 3, respectively. Quaternary numbers are used to represent the corresponding time information, such as "minute", "hour", "day", "month", "year", "week", etc. Therefore, the time information can be obtained by only periodically sampling the high and low levels to obtain the width of the square wave pulse.

[0060] In practice, the implementation of the timed sampling and decoding of the BPC low-frequency time code signal includes:

[0061] S1. Configure the controller's timer for 10ms interrupt.

[0062] S2. Regularly sample the high and low levels of the BPC signal in the interruption and record and save them;

[0063] S3: When the low level is continuously sampled for 1 second each time, it is the start of the frame, and then the data is decoded;

[0064] S4: When the continuous sampling level changes from low level to high level, it means the bit ends. The high level and low level time are saved and the next high and low level time is decoded.

[0065] S5. Determine the high level time and low level time saved last time and obtain a quaternary number;

[0066] S6, loop S4 and S5, calculate the checksum after decoding all the data, ensure the integrity of the data, and the decoded time is the current time.

[0067] like Figure 6FIG. 1 is a circuit block diagram of a controller 10 in a timed feeding device of the present invention. The controller 10 can parse the current time according to the received BPC low-frequency time code signal, and the controller 10 is also used to control the operation of the drive motor.

[0068] During operation, the controller 10 calculates the number of times the feeding spoon needs to operate based on the feeding amount and the required operating time of the feeding spoon. When the current time reaches the feeding time, the controller 10 controls the drive motor to operate, and the drive motor controls the operating time of the compartment door to allow the feeding spoon enough time to complete the operation and feed the pet food to the pet through the feeding port.

[0069] Preferably, the controller 10 is an MM32F0140 controller.

[0070] In practice, the feeding device 30 includes a grain storage bin and a drive motor. The grain storage bin is used to store pet food. The drive motor drives the pet food in the grain storage bin to be fed to the pet through the feeding port under the control of the controller 10. Figure 9 As shown in FIG, this is a circuit block diagram of a driving motor in a timed feeding device of the present application.

[0071] Preferably, the drive motor is a stepper motor.

[0072] Preferably, the drive motor is a servo motor.

[0073] During implementation, the input device 20 is used to set feeding information such as feeding time and feeding amount.

[0074] In one embodiment, based on the above embodiment, the input device 20 includes a key device, such as Figure 7 The figure shows the circuit diagram of the key device, which is used to set feeding time, feeding amount and other feeding information.

[0075] In one embodiment, based on the above embodiment, the input device 20 includes a display screen, such as Figure 8 The display screen shows a circuit diagram of the display screen. The display screen can be used to set feeding time, feeding amount and other feeding information by manually touching the display screen. At the same time, the display screen can also be used to display feeding information and the current time.

[0076] Preferably, the display screen is an OLED (organic light emitting diode) display screen, and the feeding time, feeding amount and other feeding information can be set by touch. The display screen can also display the feeding information and the current time.

[0077] The BPC radio wave receiving circuit 200 receives the BPC low-frequency time code signal, extracts the time code information from the BPC low-frequency time code signal, and decodes the time code information according to the BPC encoding rules to obtain accurate time information, thereby achieving high-precision control of the current time. The controller can accurately feed the pet based on the current time, the set feeding time and the feeding amount, meeting the pet owner's demand for precise control of pet feeding, improving the accuracy of feeding time, and solving the problem of insufficient feeding time in the prior art.

[0078] At the same time, the present application involves fewer circuit components and a streamlined circuit, which is conducive to cost control.

[0079] In addition, the user can conveniently set and adjust feeding information such as feeding time and feeding amount through the input device, and the operation is simple.

[0080] In one embodiment, based on the above embodiment, the feeding device 30 further includes: a power supply, which is connected to the drive motor and is used to supply power to the drive motor.

[0081] In practice, the power supply modes include: USB power supply and battery power supply.

[0082] The flexibility of the location of the controller 10 can be ensured by a flexible power supply method.

[0083] In one embodiment, based on the above embodiment, the BPC radio wave receiving circuit 200 includes: a magnetic rod antenna TX, and the magnetic rod antenna TX is used to receive the BPC low-frequency time code signal transmitted by the radio wave transmission tower.

[0084] In one embodiment, based on the above embodiment, Figure 3 As shown, the analysis circuit 100 includes a signal amplification subcircuit 110, a detection subcircuit 120, and a shaping subcircuit 130. The signal amplification subcircuit 110 is connected to the BPC radio wave receiving circuit 200, the detection subcircuit 120 is also connected to the signal amplification subcircuit 110, and the shaping subcircuit 130 is connected to the detection subcircuit 120.

[0085] In implementation, such as Figure 3 As shown, the signal amplification subcircuit 110 includes a high-frequency signal amplifier, the detection subcircuit 120 includes a detection diode 121 and a first capacitor 122, and the shaping subcircuit 130 includes a shaper.

[0086] During implementation, the signal amplification sub-circuit 110 is used to receive and amplify the BPC low-frequency time code signal sent by the BPC radio wave receiving circuit 200, the detection sub-circuit 120 is used to demodulate the analog time signal from the amplified BPC low-frequency time code signal, and the shaping sub-circuit 130 is used to shape the analog time signal into a time pulse signal so that it can be subsequently sent to the controller 10 for digital signal processing to obtain the current time.

[0087] Through the cooperation of the signal amplification subcircuit 110, the detection subcircuit 120 and the shaping subcircuit 130, the current time is obtained according to the BPC low-frequency time code signal, accurate time correction is achieved, accurate synchronization of the current time is ensured, and the accuracy of the current time is improved.

[0088] In a specific implementation, Figure 2 As shown, the controller 10 further includes: a radio-controlled clock chip U19 and a first crystal oscillator X1.

[0089] During implementation, the magnetic rod antenna TX is connected to the radio-controlled watch chip, and the first crystal oscillator X1 is connected to the radio-controlled watch chip U19. The magnetic rod antenna TX receives the BPC low-frequency time code signal, which contains the standard time code signal, transmitted by the National Time Service Center. The first crystal oscillator X1 generates an oscillation frequency, providing a stable clock signal for the radio-controlled watch chip U19, ensuring that the radio-controlled watch chip U19 can accurately display the time and maintain a stable operating environment.

[0090] In one embodiment, the BPC low-frequency time code signal is received by a magnetic rod antenna TX. The magnetic rod antenna TX is composed of a ferrite rod and a wire winding assembly. The BPC low-frequency time code signal is an electromagnetic wave signal.

[0091] The magnetic rod antenna TX has a strong ability to absorb electromagnetic waves. At the same time, the magnetic rod antenna TX also has the function of amplifying high-frequency signals. The magnetic antenna TX has strong directionality, which can improve the anti-interference ability of the radio.

[0092] In implementation, the BPC low-frequency time code signal is a low-frequency signal containing a standard time code signal transmitted by the National Time Service Center.

[0093] Preferably, the model of the radio-controlled watch chip U19 is CME6005-TCQH.

[0094] In one embodiment, based on the above embodiment, the controller 10 further includes: an RTC (Real-Time Clock, clock chip) clock circuit, and the RTC clock circuit is used to output the system time.

[0095] During implementation, the controller 10 adjusts the system time of the RTC clock circuit according to the current time, and when the BPC radio wave receiving circuit 200 cannot receive the BPC low-frequency time code signal and the system time reaches the feeding time, the control circuit 300 controls the driving motor to work according to the feeding time and feeding amount, so that the door of the grain storage bin is opened for the expected time at the feeding time.

[0096] In one embodiment, based on the aforementioned embodiments, the RTC clock circuit includes: a clock chip U21, a clock source 410, a power supply unit 420, and an I2C (Inter-Integrated Circuit) pull-up resistor unit 430. The clock source 410 is connected to the clock chip U21, the power supply unit 420 is connected to the clock source 410 and the clock chip U21 respectively, and the I2C pull-up resistor unit 430 and the power supply unit 420 are connected in parallel. The clock source 410 is used to generate a stable clock signal, the power supply unit 420 is used to power the clock source 410, and the power supply unit 420 can also be used to power the clock chip U21. The I2C pull-up resistor unit 430 is used to limit the supply voltage of the power supply unit 420.

[0097] Preferably, the model of the clock chip U21 is D8563F.

[0098] In a specific embodiment, Figure 4 As shown, the power supply unit 420 includes a second capacitor C31 and a third capacitor C32, which are connected in parallel. A first end of the power supply unit 420 is connected to the power supply VCC, a first end of the power supply unit 420 is connected to the positive power supply pin VDD of the clock chip U21, a first end of the power supply unit 420 is connected to the first end of the I2C pull-up resistor unit 430, and a second end of the power supply unit 420 is grounded.

[0099] In practice, the I2C pull-up resistor unit 430 includes a first resistor R39 and a second resistor R40, which are connected in parallel. A first end of the first resistor R39 and a first end of the second resistor R40 in the I2C pull-up resistor unit 430 are both connected to the positive power supply pin VDD of the clock chip U21. A second end of the first resistor R39 in the I2C pull-up resistor unit 430 is connected to the serial clock input pin SCL of the clock chip U21. A second end of the second resistor R40 in the I2C pull-up resistor unit 430 is connected to the serial data I / O pin SDA of the clock chip U21.

[0100] In practice, the clock source 410 includes a second crystal oscillator X2. Two ends of the second crystal oscillator X2 are respectively connected to the input pin OSCI and the output pin OSCO of the clock chip U21 to provide a stable clock signal.

[0101] In practice, the serial clock input pin SCL and the serial data I / O pin SDA of the clock chip U21 are respectively connected to the controller 10 , so as to send the clock signal generated by the clock chip U21 to the controller 10 .

[0102] The I2C pull-up resistor unit 430 ensures that the charging voltage of the power supply unit 420 does not exceed the maximum withstand voltage. Selecting an appropriate resistance value can determine the charging current of the power supply unit 420. When the entire circuit is powered off, the clock chip U21 continues to operate due to the power supply unit 420.

[0103] In one embodiment, when a BPC low-frequency time code signal is received, the current time obtained by parsing the BPC low-frequency time code signal is updated to the system time, thereby achieving accurate calibration of the system time of the RTC clock circuit.

[0104] When the BPC low-frequency time code signal is not received, the system time can be obtained through the RTC clock circuit. When the system time reaches the feeding time, the control circuit 300 controls the drive motor according to the feeding time and feeding amount, so that the door of the grain storage bin is open for the expected duration of the feeding time. This allows feeding to be achieved on time even when the BPC low-frequency time code signal is not available.

[0105] The BPC radio wave receiving circuit performs real-time time verification on the RTC clock circuit, effectively ensuring the accuracy of the system time. Furthermore, when the power is off, the RTC clock circuit can be used to provide the system time to ensure that the feeding device can perform feeding operations according to the system time, further improving the stability of the feeding device.

[0106] In one embodiment, based on the above embodiment, a plurality of grain storage chambers are provided in the grain storage bin according to the type of food for the pet, each grain storage chamber stores a type of food, and a driving motor is configured for each grain storage chamber.

[0107] During implementation, the feeding time, feeding amount and feeding type information are set through the input device 20. When the current time reaches the feeding time, the controller 10 controls the corresponding drive motor to work according to the feeding type information, and controls the door of the food storage chamber corresponding to the feeding type information to open for a corresponding period of time at the feeding time, so as to put the food that meets the feeding amount into the pet bowl.

[0108] In a specific implementation, Figure 5 As shown, the infrared detection sensor includes an infrared emitting tube IR1 and an infrared receiving tube IR3, which are used to detect the remaining food.

[0109] Specifically, the infrared detection circuit includes a filter circuit 510 , which includes a fourth capacitor C40 , a fifth capacitor C41 , and a sixth capacitor C42 connected in parallel in sequence, so as to filter the photoelectric signal generated by the infrared detection sensor.

[0110] By setting up an infrared detection circuit, the amount of food fed each time can be controlled according to the remaining food, preventing overfeeding and underfeeding.

[0111] In a specific implementation, the controller 10 receives the BPC low-frequency time code signal transmitted by the radio wave transmission tower through the BPC radio wave receiving circuit 200, and decodes the time coding information based on the BPC coding rules through the analysis circuit 100 to obtain the current time, and the controller 10 obtains accurate time information.

[0112] Feeding information such as feeding time and feeding amount is set through the input device 20 , and the feeding information is stored in the controller 10 .

[0113] At the same time, the display screen shows the current time, set feeding time and feeding amount and other information in real time, which is convenient for viewing and adjustment.

[0114] The controller 10 controls the driving motor through the control circuit 300 to drive the grain in the grain storage bin to feed the pet through the feeding port at the set time according to the current time and the set feeding time.

[0115] It should be noted that the above embodiments can be freely combined as needed. The above are only preferred embodiments of the present invention. It should be noted that those skilled in the art can make several improvements and modifications without departing from the principles of the present invention, and such improvements and modifications should also be considered within the scope of protection of the present invention.

Claims

1. A timed feeding device, characterized in that: include: Controller; An input device, connected to the controller via an input circuit, for setting feeding information, the feeding information including: feeding time and feeding amount; A feeding device, comprising: a grain storage bin and a driving motor; The controller includes: A BPC radio wave receiving circuit, configured to receive a BPC low-frequency time code signal transmitted from a radio wave transmitting tower, wherein the BPC low-frequency time code signal includes time code information; A parsing circuit, configured to decode the time encoding information based on a BPC encoding rule to obtain a current time; The control circuit is configured to: when the current time reaches the feeding time, control the drive motor to operate according to the feeding time and the feeding amount, so that the door of the grain storage bin is opened for a corresponding period of time during the feeding time.

2. A timed feeding device according to claim 1, characterized in that: The BPC radio wave receiving circuit includes: a magnetic rod antenna, which is used to receive the BPC low-frequency time code signal transmitted by the radio wave transmitting tower.

3. A timed feeding device according to claim 1, characterized in that: The analytical circuit comprises: a signal amplifying sub-circuit, the signal amplifying sub-circuit being connected to the BPC radio wave receiving circuit and being used to receive and amplify the BPC low-frequency time code signal sent by the BPC radio wave receiving circuit; A detection sub-circuit, the detection sub-circuit element being connected to the signal amplification sub-circuit and configured to demodulate an analog time signal from the amplified BPC low-frequency time code signal; A shaping subcircuit is connected to the detection subcircuit and is used to shape the analog time signal into a time pulse signal.

4. A timed feeding device according to claim 1, characterized in that: The controller further includes: an RTC clock circuit for outputting system time; The controller adjusts the system time of the RTC clock circuit according to the current time; The control circuit cannot receive the BPC low-frequency time code signal in the BPC radio wave receiving circuit, and when the system time reaches the feeding time, controls the drive motor to operate according to the feeding time and the feeding amount, so that the door of the grain storage bin is opened for the expected duration at the feeding time.

5. A timed feeding device according to claim 4, characterized in that: The RTC clock circuit includes: Clock chip; A clock source, connected to the clock chip, for generating a stable clock signal; a power supply unit, the power supply unit being connected to the clock source and the clock chip respectively, and being used to supply power to the clock source and / or to the clock chip; The I2C pull-up resistor unit is connected in parallel with the power supply unit and is used to limit the power supply voltage of the power supply unit.

6. A timed feeding device according to claim 1, characterized in that: The grain storage bin is provided with a plurality of grain storage chambers for storing different types of food, and each of the grain storage chambers corresponds to a drive motor; The feeding information also includes: feeding type information; The control circuit is further used to control the corresponding driving motor to work according to the feeding type information, so that the door of the grain storage chamber corresponding to the feeding type information is opened for a corresponding period of time during the feeding time.

7. A timed feeding device according to claim 1, characterized in that: The feeding device also includes: an infrared detection sensor, which is arranged in the grain storage bin. The infrared detection sensor is connected to the controller through an infrared detection circuit and is used to detect the remaining amount of food.

8. A timed feeding device according to claim 7, characterized in that: The infrared detection circuit includes: a filter circuit, a first end of the filter circuit is connected to the infrared detection sensor, and a second end of the filter circuit is grounded, and is used for filtering the photoelectric signal generated by the infrared detection sensor.

9. A timed feeding device according to claim 1, characterized in that: The feeding device further includes a power supply connected to the drive motor for supplying power to the drive motor.

10. The timed feeding device according to claim 1, characterized in that: The input device includes a display screen, and the display screen is used to display the feeding information and the current time.

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