An intelligent navigation seeding system

Abstract

The utility model discloses an intelligent navigation seeding system, including tractor big dipper navigation device and seeding machine control subsystem, the seeding machine control subsystem includes seeding machine controller, seeding machine ground wheel speed sensor, seed fertilizer detection sensor, seed metering motor and seeding machine lifting state detection sensor, seeding machine lifting state detection sensor, seeding machine ground wheel speed sensor and seed fertilizer detection sensor all are connected with seeding machine controller, and seeding machine controller is connected with seed metering motor, seeding machine controller is connected with tractor big dipter navigation device communication through CAN bus. The utility model discloses the seeding machine control is combined together with the big dipper navigation device of auxiliary driving, and signal transmission uses CAN bus. The utility model discloses according to navigation seeding, promotes seeding operation accuracy and efficiency, and moreover seeding machine, navigation is integrated on one screen, reduces user cost, can also remote monitoring and dispatch.

Description

Technical Field

[0001] This utility model belongs to the field of agricultural machinery technology, specifically relating to an intelligent navigation seeding system. Background Technology

[0002] Driven by both policy support and market demand, my country's seeder industry has shown steady development. As a key piece of mechanized equipment in agricultural production, seeders have upgraded from traditional mechanical models to intelligent ones. Currently, most domestic seeders use sprocket drive technology, with a small number using electric motors. However, they still suffer from low levels of intelligence and incomplete fault alarm functions. Furthermore, agricultural implements are currently mounted on tractors, resulting in complex wiring, multiple screens (for hill-planters, row-planters, navigation screens, etc.), complex structures, high operating difficulty, high costs, and safety concerns within the cab. Utility Model Content

[0003] This invention provides an intelligent navigation seeding system that uses a CAN bus to connect the control circuit of the seeder with the navigation system circuit in the cab, and uses only one navigation display screen, thus overcoming the shortcomings described in the prior art.

[0004] The technical solution adopted in this utility model is as follows: An intelligent navigation seeding system includes a tractor Beidou navigation device and a seeder control subsystem. The seeder control subsystem includes a seeder controller, a seeder wheel speed sensor, a seed and fertilizer detection sensor, a seed metering motor, and a seeder lifting status detection sensor. These sensors are all connected to the seeder controller, which is connected to the seed metering motor. The seeder controller communicates with the tractor Beidou navigation device via a CAN bus. The seeder control subsystem is the seeder's own control system; all sensors and controllers are inherent to the seeder itself. The only difference is that the seeder controller is connected to the tractor Beidou navigation device via a CAN bus, allowing the seeder controller to be controlled by the tractor Beidou navigation device and to control the seeding or fertilizing speed of the seeder according to the tractor Beidou navigation device's settings.

[0005] As a preferred embodiment of this utility model, the tractor Beidou navigation device includes a Beidou module, a display terminal, a controller, a 3D gyroscope, a Beidou antenna, and a motor steering wheel. The Beidou module is connected to the Beidou antenna, and the Beidou module is connected to the controller via a CAN bus. The controller is connected to the motor steering wheel, the 3D gyroscope, and the seeder controller via the CAN bus. The Beidou module receives signals from Beidou satellites to obtain the real-time location information of the tractor and its attached seeder. The 3D gyroscope detects the steering angle of the tractor wheels during travel and transmits it to the controller. The controller controls the motor steering wheel based on the Beidou module and the 3D gyroscope. The controller also transmits the Beidou speed obtained from the Beidou module and the 3D gyroscope to the seeder controller. The seeder controller controls the seed metering motor based on the ground wheel speed, the Beidou speed, and the seeder's status information, thereby controlling the sowing speed or fertilization speed to achieve precise seeding. Furthermore, it only uses the navigation display terminal, simplifying the wiring.

[0006] As a preferred embodiment of this utility model, the Beidou module and controller are installed at the display terminal, which is installed in the tractor cab; the 3D gyroscope is installed on the steering shaft of the right front wheel of the tractor body, and the motor steering wheel is installed on the steering column of the tractor body.

[0007] As a preferred embodiment of this invention, the CAN bus is a two-wire CAN bus, with the two CAN buses twisted together in a spiral pattern, which effectively prevents electromagnetic interference and outward radiation. The CAN bus uses differential signal transmission, and the twisted-pair method reduces common-mode interference, as common-mode interference affects both lines equally, thus not impacting the differential voltage signal. Furthermore, the CAN network can transmit signals through network cables, reducing the use of sensors and wiring harnesses, thereby saving space and weight. Upgrades only require upgrading the CAN network module using specialized equipment; module replacement is not necessary.

[0008] As a preferred embodiment of this utility model, the tractor Beidou navigation device is also equipped with a communication module, through which the controller communicates with the cloud platform. The communication module can use a SIM card to upload the data of the entire system to the cloud platform.

[0009] As a preferred embodiment of this utility model, it also includes a mobile terminal, which is connected to the cloud platform for communication. Users can access the cloud platform through the mobile terminal to view the status of the equipment and receive information from the cloud platform.

[0010] As a preferred embodiment of this invention, a seeding camera is also provided, which is connected to the controller. The seeding camera can record the real-time operation of the seeder and display it on the display terminal.

[0011] This invention combines the control of a seeder with a Beidou navigation system for assisted driving. The use of a CAN bus for signal transmission improves transmission efficiency and integrity, and enables fault isolation; a failure in one control unit does not affect the data transmission of other control units. It also reduces the use of sensors and wiring harnesses, saving space and weight. This invention improves the accuracy and efficiency of seeding operations through navigation-based seeding. Furthermore, the integration of the seeder and navigation system on a single screen reduces user costs and allows for remote monitoring and scheduling. Attached Figure Description

[0012] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0013] Figure 1 This is a schematic diagram of the control principle of this utility model. Detailed Implementation

[0014] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0015] An intelligent navigation seeding system, such as Figure 1 As shown, it includes a tractor Beidou navigation device and a seeder control subsystem.

[0016] The tractor's Beidou navigation device includes a Beidou module, a display terminal, a controller, a 3D gyroscope, a Beidou antenna, and a motor steering wheel. The Beidou module and 3D gyroscope serve as carriers for inertial navigation. The Beidou module and controller are installed at the display terminal, which is integrated with the controller. A high-brightness touchscreen is used, and the touchscreen is installed in the tractor's cab. The Beidou module uses satellite positioning and can use the UCD9810 single-Beidou full-frequency RF baseband and high-precision algorithm integrated BDSSoC chip from ChipStar Technology (Beijing) Co., Ltd. The 3D gyroscope is installed on the steering axle of the right front wheel of the tractor body to collect the angle information of the right front wheel and transmit it to the controller. The motor steering wheel uses a high-torque DC motor installed on the steering column of the tractor body.

[0017] The Beidou module is connected to a Beidou antenna. The Beidou module is connected to the controller via a CAN bus. The controller is connected to the motor steering wheel, 3D gyroscope, and seeder controller via a CAN bus.

[0018] The operation of the tractor's Beidou navigation device is controlled by the Beidou navigation system, which is an existing technology. The specific control process can be found in the working principle described in announcement number CN217639550U, "A New Practical Tractor Based on Beidou Navigation System", which will not be repeated here.

[0019] The Beidou module receives signals from Beidou satellites to obtain the real-time location information of the tractor and its attached seeder. The 3D gyroscope detects the steering angle of the tractor's wheels during its movement and transmits it to the controller. The controller controls the motor steering wheel based on the Beidou module and the 3D gyroscope.

[0020] To allow for real-time monitoring from the cab, a seeding camera is installed on the tractor facing the seeder, and this camera is connected to the controller. The seeding camera records the seeder's operation, and the controller displays the recording on a display terminal. In this embodiment, the controller and display terminal are integrated into a single unit, using a touchscreen. An audio signal acquisition port is located on the touchscreen, and the seeding camera uploads the acquired video signal through this port for display on the touchscreen.

[0021] The seeder control subsystem includes a seeder controller, a seeder wheel speed sensor, a seed and fertilizer detection sensor, a seed metering motor, and a seeder lifting status detection sensor. These sensors are all connected to the seeder controller, which in turn is connected to the seed metering motor. The seeder controller communicates with the tractor's Beidou navigation system via a CAN bus. This seeder control subsystem is the seeder's own control system; all sensors and controllers are built-in. The only difference is that the seeder controller is connected to the tractor's Beidou navigation system via a CAN bus, allowing it to be controlled by the navigation system and adjust the seeding or fertilizing speed accordingly. The seeder is mounted on the tractor, and the mounting point contains lifting devices controlled by the controller, such as lifting cylinders. The extension and retraction status of the lifting cylinders is detected by sensors and transmitted to the seeder controller. The seeder lifting status detection sensor can use a magnetic ring switch. The seed and fertilizer detection sensor monitors the seed falling status and uses an infrared sensor; the seeder wheel speed sensor uses an encoder, which is installed on the seeder wheel shaft to detect the wheel's travel speed; the status of the seed metering motor itself is also fed back to the seeder controller.

[0022] The controller obtains the BeiDou speed from the BeiDou module and 3D gyroscope and transmits it to the seeder controller. The seeder controller, based on the ground wheel speed, BeiDou speed, and seeder status information, jointly controls the seed metering motor, thereby controlling the sowing or fertilization speed to achieve continuous and reliable sowing control. The ground wheel speed and BeiDou speed are integrated because BeiDou speed fluctuates at low speeds, requiring compensation using the ground wheel speed. The attached seeder can be a row seeder or a hill seeder.

[0023] In this embodiment, a two-wire CAN bus is used, with the two CAN buses twisted together in a twisted pair configuration. This twisted-pair design reduces common-mode interference and effectively prevents electromagnetic interference and outward radiation. Furthermore, the CAN network can transmit signals via network cables, reducing the need for sensors and wiring harnesses, thus saving space and weight. Upgrades only require upgrading the CAN network module using specialized equipment; no module replacement is necessary.

[0024] In this embodiment, the tractor Beidou navigation device can also be equipped with a communication module, which uses a SIM card. The controller communicates with the cloud platform through the SIM card and uploads the data of the entire system to the cloud platform.

[0025] To facilitate farmers in monitoring the progress of their operations, mobile terminals are also provided. These mobile terminals are connected to the cloud platform, allowing users to access the cloud platform to view the status of their machinery and receive information from the platform.

[0026] In this specification, the terms "an embodiment," "example," "specific example," etc., refer to a specific feature, structure, material, or characteristic described in connection with that embodiment or example, which is included in at least one embodiment or example of the present invention. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples.

[0027] The above description is only a preferred embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any equivalent substitutions or changes made by those skilled in the art within the technical scope disclosed in the present utility model, based on the technical solution and the inventive concept of the present utility model, should be included within the protection scope of the present utility model.

Claims

1. An intelligent navigation seeding system, characterized in that: The system includes a tractor Beidou navigation device and a seeder control subsystem. The seeder control subsystem includes a seeder controller, a seeder wheel speed sensor, a seed and fertilizer detection sensor, a seed metering motor, and a seeder lifting status detection sensor. The seeder lifting status detection sensor, the seeder wheel speed sensor, and the seed and fertilizer detection sensor are all connected to the seeder controller, which is connected to the seed metering motor. The seeder controller communicates with the tractor Beidou navigation device via a CAN bus.

2. The intelligent navigation seeding system according to claim 1, characterized in that: The tractor Beidou navigation device includes a Beidou module, a display terminal, a controller, a 3D gyroscope, a Beidou antenna, and a motor steering wheel. The Beidou module is connected to the Beidou antenna, and the Beidou module is connected to the controller via a CAN bus. The controller is connected to the motor steering wheel, the 3D gyroscope, and the seeder controller via a CAN bus.

3. The intelligent navigation seeding system according to claim 2, characterized in that: The Beidou module and controller are installed at the display terminal, which is installed in the tractor cab; the 3D gyroscope is installed on the steering shaft of the right front wheel of the tractor body, and the motor steering wheel is installed on the steering column of the tractor body.

4. The intelligent navigation seeding system according to any one of claims 1-3, characterized in that: The CAN bus is a two-wire CAN bus, with the two CAN buses twisted together in a spiral pattern.

5. The intelligent navigation seeding system according to claim 4, characterized in that: The tractor's Beidou navigation device is also equipped with a communication module, through which the controller communicates with the cloud platform.

6. The intelligent navigation seeding system according to claim 5, characterized in that: It also includes mobile terminals, which communicate with the cloud platform.

7. The intelligent navigation seeding system according to claim 4, characterized in that: It is also equipped with a seeding camera, which is connected to the controller.

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