CN210036917U - Thousand grain weight rapid survey device of seed - Google Patents
Thousand grain weight rapid survey device of seed Download PDFInfo
- Publication number
- CN210036917U CN210036917U CN201920908452.8U CN201920908452U CN210036917U CN 210036917 U CN210036917 U CN 210036917U CN 201920908452 U CN201920908452 U CN 201920908452U CN 210036917 U CN210036917 U CN 210036917U
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- seeds
- weighing sensor
- weight
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Abstract
The utility model discloses a heavy spot test device of thousand grains of seeds based on machine vision comprises frame, camera, year thing dish, first weighing sensor, second weighing sensor, light source and controller. The carrying tray is used for placing seeds and is made of transparent materials. The backlight source is arranged right below the object carrying disc, and the camera is arranged right above the object carrying disc and can obtain backlight illumination images of seeds on the object carrying disc. The two sides of the loading plate are respectively supported by one ends of the first weighing sensor and the second weighing sensor, and the other ends of the two weighing sensors are respectively arranged on the two sides of the rack. The controller is connected with the camera to obtain a seed image and count the seeds, is connected with the two weighing sensors to obtain the weight of the object carrying plate and the seeds, obtains the weight of the seeds by subtracting the preset weight of the object carrying plate, and obtains the thousand seed weight of the seeds by calculation. Compared with the prior art, the utility model has the advantages of survey efficiency is high, simple structure, convenient to use, degree of automation are high.
Description
Technical Field
The utility model relates to a survey technique of thousand seed weights especially relates to a carry out spot test's device to thousand seed weights based on machine vision technique.
Background
In the course of socio-economic development, agriculture is the most fundamental industry. Among the many agricultural production data, seeds are the most basic and important production data. The quality of the seeds has a crucial influence on the yield and quality of the crop. The seed inspection is a process for measuring the quality of seeds and judging the quality of the seeds, and the thousand kernel weight is an important index for evaluating the quality in the seed inspection process. The thousand seed weight is determined by randomly selecting 1000 seeds and determining the mass of the seeds. Thousand kernel weight is an important index for measuring seed quality and predicting crop yield, and is also necessary data for researching number inheritance.
The traditional thousand-grain weight measuring method is to count grains and weigh by manpower, and substitute data into a formula for calculation. Because the manual counting is time-consuming and labor-consuming, the efficiency is low, and errors are easily caused by subjective factors such as fatigue, the method is not suitable for processing large samples.
The equipment used for measuring the thousand seed weight mainly comprises a counting device and a weighing device. The counting device comprises a photoelectric seed counting instrument (such as a utility model: ZL 201110170633.3) and an image type seed counting instrument (such as a utility model: ZL 201110126087.3). The weighing device is mainly an electronic balance. The existing equipment firstly adopts counting equipment to count seeds, then uses weighing equipment to weigh the seeds, and finally obtains thousand seed weight data through manual calculation. At present, a device capable of quickly and directly obtaining thousand-grain weight data of seeds through one-time operation does not exist.
SUMMERY OF THE UTILITY MODEL
The utility model aims to solve the problem that the thousand seed weight of seeds can not be obtained by the related equipment of the thousand seed weight determination in a single quick and direct way, and provide a device for rapidly determining the thousand seed weight based on machine vision.
In order to realize the purpose of the utility model, the utility model adopts the following technical proposal.
A device for rapidly measuring thousand seed weight based on machine vision is composed of a frame, a camera, a carrying disc, a first weighing sensor, a second weighing sensor, a backlight source and a controller.
The frame adopts a frame type structure. In order to ensure that the seed image is not interfered by external light and obtain a stable and good seed image, shells made of opaque materials are arranged on six surfaces outside the machine frame to form a closed image acquisition area.
Carry the thing dish and be used for holding the seed, the level set up in the utility model discloses the middle part of vertical direction adopts the transparent material preparation, is provided with the flange all around, and the flange surrounds the region of middle zone for placing the seed that forms. The one end of carrying the thing dish is provided with the handle, through the handle, can put into carrying the thing dish the utility model discloses or follow the utility model discloses in take out.
The camera is arranged right above the object carrying disc, is arranged on the rack in a mode that the lens faces downwards vertically and is used for acquiring the seed images on the object carrying disc. The distance between the camera and the object carrying plate is calculated according to the lens parameters of the camera and the size of the object carrying plate, and the visual field range of the camera is ensured to cover the area on the object carrying plate for placing the seeds. The backlight source is arranged right below the object carrying disc and provides backlight illumination for shooting the seed image. The seed image shot by the camera is a backlight illumination image, which is beneficial to the processing of the image and the counting of the seeds.
The utility model discloses a both sides mode of weighing realize weighing of year thing dish and seed to thereby guarantee that weighing sensor is located the edge of carrying the thing dish and not get into the region of placing the seed and disturb the kind of image production. Specifically, the two sides of the loading plate are respectively supported by one ends of the first weighing sensor and the second weighing sensor, and the other ends of the two weighing sensors are respectively arranged on the two sides of the rack. And the first weighing sensor and the second weighing sensor both adopt resistance strain type weighing sensors.
The controller comprises an embedded computer and a touch screen, the embedded computer and the touch screen are connected with the camera, the first weighing sensor and the second weighing sensor, the camera is used for acquiring a seed image in the object carrying disc and analyzing the seed image to obtain the quantity of seeds, the first weighing sensor and the second weighing sensor are used for acquiring the weight of the object carrying disc and the seeds and subtracting the preset weight of the object carrying disc to obtain the weight of the seeds, and finally the thousand seed weight of the seeds is automatically calculated through the obtained weight and quantity of the seeds and is displayed on the touch screen of the controller.
Compared with the prior art, the beneficial effects of the utility model are that, the utility model provides a pair of seed thousand grain weight spot test device based on machine vision obtains the weight of seed through weighing sensor, carries out the quantity that the analysis of shooing obtained the seed through the camera to the seed, calculates through the controller and obtains thousand grain weight data to realize that one-time operation directly obtains seed thousand grain weight fast. Compared with the prior art, the utility model has the advantages of survey efficiency is high, simple structure, convenient to use, degree of automation are high.
Drawings
Fig. 1 is a schematic view of the front structure of the present invention with the housing removed.
Fig. 2 is a schematic structural view of the left side of the outer casing of the present invention.
Fig. 3 is a schematic view of the three-dimensional structure of the present invention with the outer shell removed.
Fig. 4 is a schematic view of the three-dimensional appearance of the present invention.
Fig. 5 is a schematic structural view of the double-side weighing part of the present invention.
In the figure: 1. the device comprises a controller, 2, a rack, 3, a camera, 4, a carrying disc, 5, a first weighing sensor, 6, a backlight source, 7, a power supply, 8, a second weighing sensor, 9, a carrying disc handle, 10, a spring pin, 11, a shell, 12 and a carrying disc flange.
Detailed Description
The present invention will be further explained with reference to the accompanying drawings.
As shown in fig. 1-4, the utility model relates to a device for rapidly determining the thousand seed weight based on machine vision, which comprises a frame 2, a camera 3, a loading tray 4, a first weighing sensor 5, a second weighing sensor 8, a backlight source 7 and a controller 1. Frame 2 adopts frame rack structure, and six outside all are provided with the shell 11 that adopts opaque material, and shell 11 except the utility model discloses openly be provided with the access & exit of carrying thing dish 4 and be closed condition outward basically. As shown in fig. 5, the object carrying tray 4 is made of transparent material and has a rim 12 around it, and the middle area surrounded by the rim 12 is an area for placing seeds. Carry the one end of thing dish 4 to be provided with and carry thing dish handle 9, through carrying thing dish handle 9, can put into carrying thing dish 4 the utility model discloses or follow the utility model discloses in take out.
The operator will carry thing dish 4 through the thing dish handle 9 that carries that the one end of thing dish 4 set up during the use and follow the utility model discloses in take out, put into the region of carrying thing dish 4 middle placing the seed with the seed tiling of measuring and suitably rock in order to ensure that the seed disappearance perpendicular condition of overlapping, then will carry thing dish 4 to put into the utility model discloses in. As shown in fig. 1 and 5, the object carrying tray 4 is placed in the utility model, and then both sides are respectively supported by the one ends of the first weighing sensor 5 and the second weighing sensor 8, and the other ends of the first weighing sensor 5 and the second weighing sensor 8 are respectively arranged at both sides of the frame 2. The weight of the loading plate 4 and the seeds can be obtained by integrating the data of the first weighing sensor 5 and the second weighing sensor 8, and the weight of the seeds can be obtained by subtracting the preset weight of the loading plate. The spring pin 10 is used for limiting the carrying disc 4, and meanwhile, the friction force on the carrying disc 4 in the vertical direction is not increased.
As shown in fig. 1 and 2, the camera 3 is located right above the object carrying tray 4, the backlight source 7 is located right below the object carrying tray, the object carrying tray 4 is made of transparent material, and the field of view of the camera 3 covers the area of the object carrying tray 4 where the seeds are placed, so that the camera 3 can acquire the backlight illumination image of the seeds for seed counting.
Although the present invention has been described in connection with the accompanying drawings, it will be apparent to those skilled in the art that various modifications and variations can be made therein without departing from the spirit and scope of the invention, and such modifications and variations fall within the scope of the appended claims.
Claims (7)
1. A device for rapidly measuring thousand seed weight of seeds based on machine vision is characterized by comprising a rack, a camera, a carrying disc, a first weighing sensor, a second weighing sensor, a backlight source and a controller, wherein the carrying disc is made of transparent materials and used for containing seeds, two sides of the carrying disc are respectively supported by one end of the first weighing sensor and one end of the second weighing sensor, the other ends of the first weighing sensor and the second weighing sensor are respectively installed on two sides of the rack, the camera is arranged right above the carrying disc and is installed on the rack in a mode that a lens is vertically downward, the backlight source is installed right below the carrying disc, the controller is connected with the camera, the first weighing sensor and the second weighing sensor, seed images in the carrying disc are obtained through the camera and are analyzed to obtain the number of the seeds, and obtaining the weight of the object carrying plate and the seeds by the first weighing sensor and the second weighing sensor, obtaining the weight of the seeds by subtracting the preset weight of the object carrying plate, and obtaining the thousand seed weight of the seeds by the obtained weight and number of the seeds.
2. The machine vision-based device for rapidly measuring the thousand seed weight of seeds according to claim 1, wherein: the first weighing sensor and the second weighing sensor are resistance strain type weighing sensors.
3. The machine vision-based device for rapidly measuring the thousand seed weight of seeds according to claim 1, wherein: the periphery of the carrying plate is provided with flanges, and the middle area formed by surrounding the flanges is an area for placing seeds.
4. The machine vision-based device for rapidly measuring the thousand seed weight of seeds according to claim 1, wherein: one end of the carrying plate is provided with a handle, and the carrying plate can be put into or taken out of the device for rapidly measuring the thousand seed weight based on machine vision through the handle.
5. The machine vision-based device for rapidly measuring the thousand seed weight of seeds according to claim 1, wherein: the visual field range of the camera covers the area of the object carrying disc for placing the seeds.
6. The machine vision-based device for rapidly measuring the thousand seed weight of seeds according to claim 1, wherein: the controller includes an embedded computer and a touch screen.
7. The machine vision-based device for rapidly measuring the thousand seed weight of seeds according to claim 1, wherein: and an outer shell made of opaque materials is arranged outside the machine frame to form a closed image acquisition area.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920908452.8U CN210036917U (en) | 2019-06-17 | 2019-06-17 | Thousand grain weight rapid survey device of seed |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920908452.8U CN210036917U (en) | 2019-06-17 | 2019-06-17 | Thousand grain weight rapid survey device of seed |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN210036917U true CN210036917U (en) | 2020-02-07 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201920908452.8U Expired - Fee Related CN210036917U (en) | 2019-06-17 | 2019-06-17 | Thousand grain weight rapid survey device of seed |
Country Status (1)
| Country | Link |
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| CN (1) | CN210036917U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110132384A (en) * | 2019-06-17 | 2019-08-16 | 湖南农业大学 | A kind of thousand grain weigth rapid determination device based on machine vision |
| CN111398294A (en) * | 2020-04-16 | 2020-07-10 | 沈阳农业大学 | Straw particle defect detection system and detection method based on machine vision |
-
2019
- 2019-06-17 CN CN201920908452.8U patent/CN210036917U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110132384A (en) * | 2019-06-17 | 2019-08-16 | 湖南农业大学 | A kind of thousand grain weigth rapid determination device based on machine vision |
| CN111398294A (en) * | 2020-04-16 | 2020-07-10 | 沈阳农业大学 | Straw particle defect detection system and detection method based on machine vision |
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| Date | Code | Title | Description |
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| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20200207 Termination date: 20200617 |
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| CF01 | Termination of patent right due to non-payment of annual fee |