Device for controlling position of greenhouse roller shutter based on operation time

Abstract

The utility model discloses a device for controlling the position of a greenhouse roller shutter based on operation time, belongs to the technical field of greenhouse roller shutter control, and solves the problem that a greenhouse roller shutter machine cannot be remotely controlled to automatically wind and lay a straw curtain according to the time period of each day. Comprising a motor used for driving a greenhouse roller shutter to be wound and unwound; the output end of the motor driving module is coupled with the motor, and the motor driving module is used for controlling forward and reverse rotation and rotating speed of the motor; the real-time clock module is used for providing time information; and the input end of the microcontroller is coupled with the real-time clock module. When the system needs to work, a user does not need to go to a greenhouse site, accurate time information can be provided through the real-time clock module, it is ensured that the microcontroller can operate according to a set time table, and then the motor is controlled to rotate forwards and backwards and rotate at the rotating speed through the motor driving module; therefore, the device can automatically control the work of the greenhouse roller shutter machine according to the operation time.

Description

Technical Field

[0001] The utility model relates to the technical field of greenhouse rolling curtain control, in particular to a device for controlling the position of a greenhouse rolling curtain based on running time. Background Art

[0002] Greenhouse roller shutters are an indispensable automation equipment in modern agricultural facilities, mainly used to control the ventilation and insulation of greenhouses. It automatically rolls up or puts down the straw curtains, insulation blankets and other coverings on the greenhouse by mechanical means to adjust the temperature and light in the greenhouse. Rolling shutters are usually divided into two types: fixed and mobile. The fixed roller shutter is installed on the back wall of the greenhouse, uses mechanical power to roll up the straw curtains, and automatically puts them down depending on the slope of the greenhouse and the weight of the straw curtains; while the mobile roller shutter can move inside the greenhouse, and the straw curtains can be freely rolled up and put down by the principle of the manipulator, without being restricted by the slope of the greenhouse. The use of roller shutters can not only significantly improve labor efficiency and reduce labor costs, but also promote crop growth and improve the intelligence and automation level of agricultural production by accurately controlling the environment in the greenhouse. In addition, the correct use and maintenance of the roller shutter is also very important. Regular inspection and maintenance can extend the service life of the equipment and ensure its stable operation.

[0003] Normally, a greenhouse roller shutter machine includes a motor, a roller shutter machine body connected to the motor, and a rope winding shaft connected to the roller shutter machine body. The motor is used as a power source to drive the straw curtain to be rolled up or released.

[0004] Generally speaking, the current greenhouse roller shutter machines still require farmers to actually go to the location of the greenhouse and control the motor through the controller to cover the greenhouse with straw curtains or roll up the straw curtains. Although this method can reduce the labor intensity of farmers, it is impossible to remotely control the greenhouse roller shutter machine to autonomously roll up and lay the straw curtains according to the daily time period, so there is still room for improvement.

[0005] Therefore, a device for controlling the position of a greenhouse roller shutter based on the running time is proposed to solve or alleviate the above problems. Utility Model Content

[0006] The utility model aims to solve the shortcomings in the prior art and proposes a device for controlling the position of a greenhouse rolling curtain based on the running time.

[0007] In order to achieve the above purpose, the utility model adopts the following technical solutions:

[0008] A device for controlling the position of a greenhouse rolling curtain based on running time, comprising:

[0009] The motor is used to drive the greenhouse roller blind to roll up and unroll;

[0010] A motor drive module, whose output end is coupled to the motor and is used to control the forward and reverse rotation and speed of the motor;

[0011] Real-time clock module, used to provide time information;

[0012] A microcontroller, whose input end is coupled to the real-time clock module and whose output end is coupled to the motor drive module, is used to receive and send instructions to the motor drive module in response to time information;

[0013] The wireless communication module is coupled to the microcontroller and is used for wireless communication interaction of information with the terminal.

[0014] Preferably, it also includes a power management module and an external power supply, the input end of the power management module is coupled to the external power supply, and the output end of the power management module is coupled to the real-time clock module, the microcontroller, the motor drive module, and the motor for power supply.

[0015] Preferably, it also includes a feedback module, the output end of the feedback module is coupled to the input end of the microcontroller, and the feedback module is used to collect environmental factors in the greenhouse and generate signals to transmit to the microcontroller.

[0016] Preferably, the feedback module comprises

[0017] Temperature sensor, used to collect the ambient temperature in the greenhouse and generate a temperature signal;

[0018] The first voltage comparison circuit is connected to the output terminal of the temperature sensor and the input terminal of the microcontroller, and is used for outputting a temperature detection signal in response to the temperature signal being greater than a temperature reference signal.

[0019] Preferably, the feedback module further includes

[0020] Light sensor, used to collect the ambient light intensity in the greenhouse to generate light intensity signals;

[0021] The second voltage comparison circuit is connected to the output end of the light sensor and the input end of the microcontroller, and is used for outputting a light intensity detection signal in response to the light intensity signal being greater than a light intensity reference signal.

[0022] Preferably, the feedback module further includes

[0023] Humidity sensor, used to collect the ambient humidity in the greenhouse and generate humidity signals;

[0024] The third voltage comparison circuit is connected to the output terminal of the humidity sensor and the input terminal of the microcontroller, and is used for outputting a humidity detection signal in response to the humidity signal being greater than a humidity reference signal.

[0025] Preferably, the motor drive module is an L298N dual H-bridge motor drive chip, the microcontroller is a 51 single-chip microcomputer, the real-time clock module is a DS1307 clock chip, and the wireless communication module is an ESP8266 wireless WIFI chip.

[0026] Preferably, the power management module is a LMG3410R050 power management chip.

[0027] Preferably, the first voltage comparison circuit, the second voltage comparison circuit, and the third voltage comparison circuit are all voltage comparators.

[0028] Preferably, the terminal is one of a mobile phone, a tablet computer, and a desktop computer.

[0029] The utility model has the following beneficial effects:

[0030] When the utility model needs to work, the user does not need to go to the greenhouse site. The real-time clock module can provide accurate time information to ensure that the microcontroller can run according to the set schedule, and then the motor drive module can be used to control the forward and reverse rotation of the motor, as well as its speed, so that the device can automatically control the work of the greenhouse roller shutter machine according to the running time. At the same time, it can also interact with the microcontroller through the terminal, so that the user can obtain the current situation in real time. BRIEF DESCRIPTION OF THE DRAWINGS

[0031] Figure 1 It is a structural block diagram of the utility model;

[0032] Figure 2 It is a structural block diagram of the feedback module in the utility model.

[0033] 1. Microcontroller; 2. Real-time clock module; 3. Motor drive module; 4. Motor; 5. Power management module; 6. External power supply; 7. Wireless communication module; 8. Terminal; 9. Feedback module; 901. Temperature sensor; 9011. First voltage comparison circuit; 902. Light sensor; 9021. Second voltage comparison circuit; 903. Humidity sensor; 9031. Third voltage comparison circuit. DETAILED DESCRIPTION

[0034] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all of the embodiments.

[0035] A device for controlling the position of a greenhouse roller blind based on the running time, such as Figure 1 As shown, it includes a motor 4 for driving the greenhouse roller blind to roll up and unroll;

[0036] The motor drive module 3 has an output end coupled to the motor 4 and is used to control the forward and reverse rotation and speed of the motor 4;

[0037] Real-time clock module 2, used for providing time information;

[0038] A microcontroller 1, whose input end is coupled to the real-time clock module 2 and whose output end is coupled to the motor drive module 3, is used to receive and send instructions to the motor drive module 3 in response to time information;

[0039] The wireless communication module 7 is coupled to the microcontroller 1 and is used for wireless communication interaction of information with the terminal 8 .

[0040] When the device is working, the microcontroller 1 regularly reads the current time from the real-time clock module 2. The real-time clock module 2 provides time information in a 24-hour format, that is, a schedule. The microcontroller 1 determines the action that should be performed currently according to the schedule provided by the real-time clock module 2. The microcontroller 1 sends instructions to the motor 4 through the motor drive module 3 according to the result of the control logic. If the instruction is forward rotation, the microcontroller 1 will configure the motor drive module 3 to drive the motor 4 forward rotation. If the instruction is reverse rotation, the microcontroller 1 will configure the motor drive module 3 to drive the motor 4 reverse rotation. If the instruction is to stop, the microcontroller 1 will send an instruction to disconnect the power supply of the motor 4 or set it to a stop state. The user can obtain information through the terminal 8. The terminal 8 realizes information interaction with the microcontroller 1 through the wireless communication module 7, so that the user can obtain the current working status of the greenhouse roller shutter without going to the greenhouse. The device can control the action of the greenhouse roller shutter based on the running time, which reduces the user's work intensity, realizes the automatic control of the greenhouse roller shutter, and enables the user to manage a larger number of greenhouses and improve the per capita output value.

[0041] Preferably, it also includes a power management module 5 and an external power supply 6, the input end of the power management module 5 is coupled to the external power supply 6, and the output end of the power management module 5 is coupled to the real-time clock module 2, the microcontroller 1, the motor drive module 3, and the motor 4 for power supply.

[0042] The power management module 5 performs power management and voltage stabilization functions on the external power supply 6 so as to provide a stable power supply for the entire device.

[0043] Preferably, if Figure 2 As shown, it also includes a feedback module 9, the output end of the feedback module 9 is coupled to the input end of the microcontroller 1, and the feedback module 9 is used to collect environmental factors in the greenhouse and generate signals to be transmitted to the microcontroller 1.

[0044] The setting of the feedback module 9 makes the control of the entire device not only customized based on the running time, but also can perform adaptive adjustments of the device according to the environmental factors in the greenhouse, so that under the control of this device, the coverage degree of the greenhouse roller blinds on the straw curtains can have a positive guidance on the environmental factors in the greenhouse, so that the environmental factors in the greenhouse tend to the ideal growth environment of the plants in the greenhouse.

[0045] It should be noted that the priority of the feedback module 9 is lower than the priority of the real-time clock module 2 .

[0046] Preferably, the feedback module 9 includes

[0047] Temperature sensor 901, used to collect the ambient temperature in the greenhouse to generate a temperature signal;

[0048] The first voltage comparison circuit 9011 is connected to the output terminal of the temperature sensor 901 and the input terminal of the microcontroller 1 , and is used for outputting a temperature detection signal in response to the temperature signal being greater than a temperature reference signal.

[0049] The temperature sensor 901 is set in the greenhouse to directly collect the ambient temperature in the greenhouse and generate a corresponding temperature signal to extract the ambient temperature in the greenhouse in real time and monitor it in real time. At the same time, the first voltage comparison circuit 9011 sets a temperature reference signal to compare with the temperature signal to determine whether the temperature signal exceeds the originally set threshold, and then outputs a temperature detection signal to the microcontroller 1 to reduce the computing burden of the microcontroller 1.

[0050] Preferably, the feedback module 9 also includes

[0051] Light sensor 902, used to collect the ambient light intensity in the greenhouse to generate a light intensity signal;

[0052] The second voltage comparison circuit 9021 is connected to the output end of the light sensor 902 and the input end of the microcontroller 1, and is used for outputting a light intensity detection signal in response to the light intensity signal being greater than a light intensity reference signal.

[0053] The light sensor 902 is similar to the temperature sensor 901, which is also set in the greenhouse to detect the ambient light intensity in the greenhouse. After detecting the ambient light intensity, it outputs a light intensity signal to the second voltage comparison circuit 9021. The second voltage comparison circuit 9021 sets a light intensity reference signal for comparison with the light intensity signal to determine whether the light intensity signal exceeds the threshold set therein, and then outputs a light intensity detection signal to the microcontroller 1, thereby reducing the computing burden of the microcontroller 1.

[0054] Preferably, the feedback module 9 also includes

[0055] Humidity sensor 903, used to collect the humidity in the greenhouse and generate a humidity signal;

[0056] The third voltage comparison circuit 9031 is connected to the output terminal of the humidity sensor 903 and the input terminal of the microcontroller 1 , and is used for outputting a humidity detection signal in response to the humidity signal being greater than a humidity reference signal.

[0057] The humidity sensor 903 is similar to the temperature sensor 901, which is also set in the greenhouse to detect the ambient humidity in the greenhouse. After detecting the ambient humidity, it outputs a humidity signal to the third voltage comparison circuit 9031. The third voltage comparison circuit 9031 sets a humidity reference signal for comparison with the humidity signal to determine whether the light intensity signal exceeds the threshold set therein, and then outputs a humidity detection signal to the microcontroller 1, thereby reducing the computing burden of the microcontroller 1.

[0058] It should be noted that when the microcontroller 1 is controlled according to the light intensity detection signal, the humidity detection signal, and the temperature detection signal, when controlling the greenhouse roller shutter machine to adjust the straw curtain covering or rolling up, the strategy is as follows for different combinations of environmental conditions: when the temperature, humidity and light intensity in the greenhouse are high, the straw curtain should be rolled up to increase ventilation and reduce temperature and humidity; if the temperature is high but the humidity is high and the light intensity is low, the straw curtain needs to be rolled up and artificial lighting may be supplemented; in the face of high temperature, low humidity and high light intensity, the straw curtain should also be rolled up and attention should be paid to keeping the soil moist; if the high temperature, low humidity and light intensity are also low, the straw curtain needs to be rolled up, light should be increased and irrigation should be considered; for low temperature, high humidity and high light intensity, it may be necessary to cover the straw curtain to keep warm and use sufficient light at the same time; when the light intensity is low due to low temperature and high humidity, the straw curtain should be covered, artificial light should be provided and humidity should be reduced; when the light intensity is high due to low temperature and low humidity, the straw curtain should be covered to keep warm and increase humidity and use light; finally, under the conditions of low temperature, low humidity and low light intensity, the straw curtain should be covered to keep warm and moisturize and provide artificial light.

[0059] Preferably, the motor drive module 3 is an L298N dual H-bridge motor drive chip, the microcontroller 1 is a 51 single-chip microcomputer, the real-time clock module 2 is a DS1307 clock chip, and the wireless communication module 7 is an ESP8266 wireless WIFI chip.

[0060] Preferably, the power management module 5 is a LMG3410R050 power management chip.

[0061] Preferably, the first voltage comparison circuit 9011 , the second voltage comparison circuit 9021 , and the third voltage comparison circuit 9031 are all voltage comparators.

[0062] Preferably, the terminal 8 is a mobile phone, a tablet computer, or a desktop computer.

[0063] The above description is only a preferred specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes within the technical scope disclosed by the present invention according to the technical scheme and the utility model concept of the present invention, which should be covered by the protection scope of the present invention.

Claims

1. A device for controlling the position of a greenhouse roller blind based on running time, characterized in that: include A motor (4) is used to drive the greenhouse roller blind to roll up and unroll; A motor drive module (3), whose output end is coupled to the motor (4) and is used to control the forward and reverse rotation and speed of the motor (4); A real-time clock module (2), used for providing time information; A microcontroller (1), whose input end is coupled to a real-time clock module (2), and whose output end is coupled to a motor drive module (3), is used for receiving and sending instructions to the motor drive module (3) in response to time information; A wireless communication module (7), coupled to the microcontroller (1), and used for wireless communication interaction of information with a terminal (8); It also includes a feedback module (9), the output end of the feedback module (9) is coupled to the input end of the microcontroller (1), and the feedback module (9) is used to collect environmental factors in the greenhouse and generate signals to be transmitted to the microcontroller (1); The feedback module (9) comprises A temperature sensor (901) is used to collect the ambient temperature in the greenhouse and generate a temperature signal; A first voltage comparison circuit (9011) connected to the output end of the temperature sensor (901) and the input end of the microcontroller (1), and configured to output a temperature detection signal in response to the temperature signal being greater than a temperature reference signal; The feedback module (9) also includes A light sensor (902) is used to collect the ambient light intensity in the greenhouse to generate a light intensity signal; A second voltage comparison circuit (9021) is connected to the output end of the light sensor (902) and the input end of the microcontroller (1), and is used to output a light intensity detection signal in response to the light intensity signal being greater than a light intensity reference signal; The feedback module (9) also includes A humidity sensor (903) is used to collect the humidity of the environment in the greenhouse and generate a humidity signal; The third voltage comparison circuit (9031) is connected to the output end of the humidity sensor (903) and the input end of the microcontroller (1), and is used to output a humidity detection signal in response to the humidity signal being greater than a humidity reference signal.

2. The device for controlling the position of a greenhouse rolling curtain based on the running time according to claim 1 is characterized in that: The invention also comprises a power management module (5) and an external power supply (6), wherein the input end of the power management module (5) is coupled to the external power supply (6), and the output end of the power management module (5) is coupled to the real-time clock module (2), the microcontroller (1), the motor drive module (3), and the motor (4) for power supply.

3. The device for controlling the position of a greenhouse rolling curtain based on the running time according to claim 1 is characterized in that: The motor drive module (3) is an L298N dual H-bridge motor drive chip, the microcontroller (1) is a 51 single-chip microcomputer, the real-time clock module (2) is a DS1307 clock chip, and the wireless communication module (7) is an ESP8266 wireless WIFI chip.

4. The device for controlling the position of a greenhouse rolling curtain based on the running time according to claim 2 is characterized in that: The power management module (5) is a LMG3410R050 power management chip.

5. The device for controlling the position of a greenhouse rolling curtain based on running time according to claim 1, characterized in that: The first voltage comparison circuit (9011), the second voltage comparison circuit (9021), and the third voltage comparison circuit (9031) are all voltage comparators.

6. The device for controlling the position of a greenhouse rolling curtain based on running time according to claim 1, characterized in that: The terminal (8) is one of a mobile phone, a tablet computer, and a desktop computer.

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