Auxiliary driving environment image system

Abstract

The utility model discloses an aided driving ring shadow system, including video acquisition module, display terminal, splicing converter, video acquisition module includes a plurality of cameras, angle sensor, displacement sensor, the camera is distributed around the top of car body, angle sensor is used for sensing the change of shift lever, and the displacement sensor is used for sensing the change of shift lever. The gear lever is used for controlling gear switching of a vehicle, the displacement sensor is used for sensing the steering amplitude of a steering mechanism, the splicing converter is in signal connection with the video acquisition module, and the splicing module is in signal connection with the display terminal. And the display terminal displays an environment picture around the vehicle and a driving track picture of the simulated vehicle according to the collected signals.

Description

Technical Field

[0001] The utility model relates to an auxiliary driving surround view system. Background Art

[0002] Agricultural machinery refers to various machines used in the processes of crop planting and animal husbandry production, as well as the primary processing and handling of agricultural and livestock products. Agricultural machinery includes agricultural power machinery, farmland construction machinery, soil tillage machinery, planting and fertilizing machinery, plant protection machinery, farmland irrigation and drainage machinery, crop harvesting machinery, agricultural product processing machinery, animal husbandry machinery, and agricultural transportation machinery, etc.

[0003] In order to facilitate the operation of agricultural machinery vehicles by drivers, a vehicle body environment image projection system is usually adopted to assist driving. The 360 surround view systems currently widely used on agricultural harvesting operation machinery are mostly used to observe the situations around the harvester, and cannot provide better assistance to users. Due to unfamiliarity with the harvester body, even with a panoramic display, it is impossible to prevent scratching and bumping incidents from occurring, which makes users very uncomfortable. Content of the Utility Model

[0004] The purpose of the utility model is to solve the above-mentioned deficiencies of the prior art and provide an auxiliary driving surround view system.

[0005] An auxiliary driving surround view system includes a video acquisition module, a display terminal, and a splicing converter. The video acquisition module includes multiple cameras, an angle sensor, and a displacement sensor. The cameras are distributed around the top of the vehicle body. The angle sensor is used to sense the change of the gear lever, and the gear lever is used to control the gear shifting of the vehicle. The displacement sensor is used to sense the steering amplitude of the steering mechanism. The splicing converter is signal-connected to the video acquisition module, and the splicing module is signal-connected to the display terminal. The display terminal displays the environmental picture around the vehicle and the simulated driving trajectory picture of the vehicle according to the collected signals.

[0006] Preferably, the steering mechanism includes a steering oil cylinder, a movable connecting rod, a fixed connecting rod, and a vertical shaft. The steering oil cylinder is a two-way hydraulic cylinder. A piston rod is movably arranged in the two-way hydraulic cylinder. Both ends of the piston rod extend outside the cylinder body of the oil cylinder. Both ends of the piston rod are respectively hinged to one end of the movable connecting rod. The other end of the movable connecting rod is hinged to one end of the fixed connecting rod. The other end of the fixed connecting rod is fixedly connected to the vertical shaft. The wheel hub of the vehicle is rotationally connected to the drive axle through the vertical shaft.

[0007] Preferably, the displacement sensor is a potentiometer type linear displacement sensor, and the displacement sensor is used to sense the change state of the steering oil cylinder.

[0008] Preferably, the angle sensor is a potentiometer type angle sensor.

[0009] Preferably, the display terminal is connected to the steering gear. The steering gear senses the steering information of the vehicle and transmits the steering signal to the display terminal. A split-screen display program is provided in the display terminal. After receiving the steering signal, the display terminal splits the screen to display the first screen and the second screen through the split-screen display program. The first screen is the real-time status screen of the vehicle's movement trajectory, and the second screen is the real-time status screen of the steering side of the vehicle.

[0010] Beneficial effects: Compared with the prior art, the present utility model retains the structure of the original 360° surround view system. By adding a sensor for the displacement of the steering cylinder outside the original structure, when steering, the display terminal can simulate the vehicle's driving trajectory according to the signal change of the displacement sensor. The structure framework of this system is simple, and it is convenient to use and maintain, providing a better vehicle use experience for users. BRIEF DESCRIPTION OF THE DRAWINGS

[0011] Figure 1 is a schematic diagram of the principle of an assisted driving surround view system;

[0012] Figure 2 is an assembly diagram of the displacement sensor and the steering mechanism;

[0013] Figure 3 is a schematic diagram of the displacement sensor;

[0014] Figure 4 is an assembly diagram of the angle sensor and the gear lever;

[0015] Figure 5 is a top view of the angle sensor;

[0016] Figure 6 is a front view of the angle sensor;

[0017] Figure 7 is a schematic diagram of the vehicle's simulated movement trajectory on the instrument;

[0018] In the figure, 1. displacement sensor, 2. steering cylinder, 3. piston rod, 4. movable connecting rod, 5. fixed connecting rod, 6. vertical shaft, 7. drive axle, 8. gear lever, 9. angle sensor. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0019] To deepen the understanding of the present utility model, the following will further elaborate on the present utility model in combination with the embodiments and the drawings. The embodiments are only used to explain the present utility model and do not limit the protection scope of the present utility model.

[0020] As Figure 1-7 shown, displacement sensor 1, steering cylinder 2, piston rod 3, movable connecting rod 4, fixed connecting rod 5, vertical shaft 6, drive axle 7, gear lever 8, angle sensor 9;

[0021] An assisted driving surround view system includes a video acquisition module, a display terminal, and a splicing converter. The video acquisition module includes multiple cameras, an angle sensor 9, and a displacement sensor 1. The cameras are distributed around the top of the vehicle body. The angle sensor 9 is used to sense the change of the gear lever 8, and the gear lever 8 is used to control the gear shift of the vehicle. The displacement sensor 1 is used to sense the steering amplitude of the steering mechanism. The steering mechanism includes a steering oil cylinder 2, a movable connecting rod 4, a fixed connecting rod 5, and a vertical shaft 6. The steering oil cylinder 2 is a two-way hydraulic cylinder. A piston rod 3 is movably arranged in the two-way hydraulic cylinder. Both ends of the piston rod 3 extend outside the cylinder body of the oil cylinder. The two ends of the piston rod 3 are respectively hinged to one end of the movable connecting rod 4. The other end of the movable connecting rod 4 is hinged to one end of the fixed connecting rod 5. The other end of the fixed connecting rod 5 is fixedly connected to the vertical shaft 6. The wheel hub of the vehicle is rotationally connected to the drive axle 7 through the vertical shaft 6. The displacement sensor 1 is a potentiometer type linear displacement sensor 1.

[0022] The splicing converter is signal-connected to the video acquisition module, and the splicing module is signal-connected to the display terminal. The angle sensor 9 is a potentiometer type angle sensor 9. The displacement sensor 1 is used to sense the change state of the steering oil cylinder 2.

[0023] The display terminal displays the surrounding environment picture of the vehicle and the simulated driving trajectory picture of the vehicle according to the collected signals. The display terminal is connected to the steering gear. The steering gear senses the steering information of the vehicle and transmits the steering signal to the display terminal. A split-screen display program is provided in the display terminal. After receiving the steering signal, the display terminal splits the screen to display a first picture and a second picture through the split-screen display program. The first picture is the real-time state picture of the vehicle's movement trajectory, and the second picture is the real-time state picture of the side where the vehicle turns. Among them, the display terminal is the instrument.

[0024] Specifically, the entire 360° assisted surround view system includes an instrument, four cameras, a power supply, an angle sensor 9, a displacement sensor 1, and the left and right turn signals of the steering gear. The angle sensor 9 detects the position of the gear lever 8, and the displacement sensor 1 detects the change state of the steering oil cylinder 2.

[0025] The instrument combines the images of the four cameras on the instrument screen, and collects the signals of the angle sensor 9 and the displacement sensor 1 to generate the movement trajectory of the vehicle tires in real time. Thus, when the vehicle is driving, the instrument detects the voltage value output by the angle sensor 9, and collects the resistance value of the displacement sensor 1 on the steering oil cylinder 2, and then can simulate the movement trajectory of the tires on the 360° surround view interface of the harvester. When the instrument detects the steering signal of the steering gear, the instrument screen is divided into two pictures. One picture is the normal movement trajectory picture, and the other picture is the picture of the side where the harvester turns.

[0026] Since the wheeled machine is too large, simply simulating the trajectory of one side of the tire cannot provide a better sense of control for the user. This system will simulate the driving trajectories of the front and rear tires simultaneously to help the operator control the harvester more directly and safely, and reduce collisions and scratches caused by a lack of understanding of the harvester body. This allows the operator to more easily judge the driving trajectory of the harvester and the relative position and distance of surrounding objects.

[0027] Instructions for use: When the vehicle steers, the steering cylinder 2 drives the displacement sensor 1 fixed on it to move, causing a resistance change in the sensor. The instrument simulates the rotation angle of the tire travel based on the resistance change of the displacement sensor 1.

[0028] When the voltage value of the angle sensor 9 is in the forward gear position, the instrument simulates the current driving route of the front wheels. When the instrument receives left or right steering from the steering wheel, the instrument interface is split into two interfaces, one interface shows the steering side view, and the other interface continues to show the 360° surround view.

[0029] When the voltage value of the angle sensor 9 is in the reverse gear position, the interface switches to the reverse interface, and the wheel movement is simulated in real time according to the resistance value of the displacement sensor 1.

[0030] The above are only the preferred embodiments of the present invention and are not intended to limit the present invention. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principles of the present invention shall be included within the protection scope of the present invention.

Claims

1. A driver assistance surround image system, characterized in that: It includes a video acquisition module, a display terminal, and a splicing converter. The video acquisition module includes multiple cameras, angle sensors, and displacement sensors. The cameras are distributed around the top of the vehicle body. The angle sensor is used to sense changes in the gear lever. The gear lever is used to control the gear switching of the vehicle. The displacement sensor is used to sense the steering amplitude of the steering mechanism. The splicing converter is connected to the video acquisition module signal, and the splicing converter is connected to the display terminal signal. The display terminal displays the environment around the vehicle and simulates the vehicle's driving trajectory according to the collected signals.

2. The driver assistance surround image system according to claim 1, characterized in that: The steering mechanism includes a steering cylinder, a movable connecting rod, a fixed connecting rod, and a vertical shaft. The steering cylinder is a bidirectional hydraulic cylinder. A piston rod is movably provided inside the bidirectional hydraulic cylinder. Both ends of the piston rod extend out of the cylinder body of the cylinder. Both ends of the piston rod are respectively hinged to one end of the movable connecting rod, and the other end of the movable connecting rod is hinged to one end of the fixed connecting rod. The other end of the fixed connecting rod is fixedly connected to the vertical shaft. The wheel hub of the vehicle is rotatably connected to the drive axle through the vertical shaft.

3. The driver assistance surround image system according to claim 2, characterized in that: The displacement sensor is a potentiometer type linear displacement sensor, and the displacement sensor is used to sense the change state of the steering cylinder.

4. The driver assistance surround image system according to claim 2, characterized in that: The angle sensor is a potentiometer angle sensor.

5. The driver assistance surround image system according to claim 1, characterized in that: The display terminal is connected to the steering gear, which senses the steering information of the vehicle and transmits the steering signal to the display terminal. A split-screen display program is provided in the display terminal. After the display terminal receives the steering signal, the split-screen display program displays a first screen and a second screen in a split screen. The first screen is a real-time status screen of the vehicle's movement trajectory, and the second screen is a real-time status screen of the vehicle's steering side.

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