Self-cleaning sowing device and real-time monitoring method thereof

A technology of a planter and a monitoring device, which is applied in the fields of planter parts, sowing, and optical device exploration, can solve the problems of low monitoring accuracy, difficulty in replay monitoring, etc., and achieves high monitoring accuracy, low cost, and stable monitoring performance. Effect

Inactive Publication Date: 2009-02-11
CHINA AGRI UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0007] Aiming at the problems existing in the prior art such as missed sowing, difficult monitoring of rebroadcasting and low monitoring accuracy, the object of the present

Method used

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  • Self-cleaning sowing device and real-time monitoring method thereof
  • Self-cleaning sowing device and real-time monitoring method thereof
  • Self-cleaning sowing device and real-time monitoring method thereof

Examples

Experimental program
Comparison scheme
Effect test

Example Embodiment

[0044] Example 1

[0045] The present invention provides a planter, such as figure 1 As shown, the planter includes a seed box 1, a seed meter 2, a seed guide tube 3, a monitoring device 4, and a frame 5. The monitoring device 4 is installed on the seed guide tube 3, and its main component is a sensor unit. Such as figure 2 As shown, the sensor unit includes a plurality of transmitting ends 6 and a plurality of receiving ends 10 of the same number and arranged oppositely. The parallel light beams generated by the plurality of transmitting ends 6 form a grating 8, and the grating plane is perpendicular to the seed guide tube 3. The receiving end 10 receives the parallel light beam. In this embodiment, the transmitting end 6 adopts a laser transmitter, and the receiving end 10 adopts a photodiode; the monitoring device 4 It also includes a signal processing unit, connected to the sensor unit through an interface circuit, and judging the seeding state in the seed tube 3 through the...

Example Embodiment

[0050] Example 2

[0051] Due to the large differences in the size of the corn seeds in various directions, and the different postures during the sowing and falling process, it is possible to pass between the beams without blocking the beams, and the result is misjudged as missed seeding. To solve this problem theoretically, it can be achieved by reducing the beam axis spacing of the grating, but the realization is relatively complicated. On the other hand, if two or more seeds pass the detection area at the same time (that is, when the time difference between passing the detection area is less than the resolution of the sensor), some seeds may be missed, that is, this type of replay cannot be accurately detected. For example, such as image 3 As shown, if two seeds pass through the detection area at the same time according to the position shown in the figure, if only one sensor A is used at this time, since the two seeds block the same beam, only the d-th output terminal on senso...

Example Embodiment

[0055] Example 3

[0056] This embodiment provides a planter with a self-cleaning function. In addition to including all the components involved in the second embodiment, the planter also includes Figure 4 with Figure 5 As shown in the self-cleaning device, the self-cleaning device includes: a movable support 11, in the shape of a square plate, with a round hole in the middle that matches the outer diameter of the seed guide tube; an eccentric wheel 16 installed on the movable Above the bracket 11, when the eccentric wheel 16 rotates, its outer edge pushes the movable bracket 11 to reciprocate up and down. The eccentric wheel 16 and the movable bracket 11 are configured such that the eccentric wheel 16 rotates once and the movable bracket 11 moves up and down. One round trip; the return spring 13, located between the lower surface of the movable support 11 and the upper surface of the sensor unit group 14, under the joint action of the return spring 13 and the eccentric 16, the m...

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Abstract

The invention relates to a sowing machine, in particular to a sowing machine with the function of monitoring in real time; the sowing machine comprises a frame, a seed box, a seeding mechanism, a grain conductor and a monitoring device which is arranged on the grain conductor; a sensor unit in the monitoring device uses a photoelectric sensing mode of a grid grating to cover the whole section of the grain conductor and carry out independent monitoring to each grid, thus better realizing the monitoring to resowing. A monitoring method provided by the invention is simple and effective, has high accuracy and function of self-cleaning and improves the stability of monitoring; as the cost is low, the sowing machine with the function of monitoring in real time related to the invention has popularization.

Description

technical field [0001] The invention relates to the technical field of agricultural equipment, in particular to a device and technology capable of real-time monitoring of the sowing state of a seeder. Background technique [0002] With the development of precision agriculture, the requirements for sowing quality are getting higher and higher. Especially for row crops such as corn, high-quality precision seeding can not only save the work of seeds and seedlings, but also help the growth of seedlings and increase production. Therefore, higher requirements are put forward for the performance of the new precision (single-grain) seeder. In terms of detection, it is not only required to be able to detect the conventional lack of seeds and blockages during the sowing process, but also to be able to monitor missed sowing and reseeding in real time. [0003] At present, there have been a lot of researches on the monitoring of the seeding rate of the seeder, but the researches mainly...

Claims

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Application Information

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IPC IPC(8): A01C7/20A01C7/00G01V8/20
Inventor 张俊雄宋鹏李伟谭豫之
Owner CHINA AGRI UNIV
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