CN105699249A - Automatic crop seed volume weight measurement device and automatic crop seed volume weight measurement method - Google Patents
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Abstract
本发明涉及物料的物理性质检测技术领域，尤其涉及一种作物种子容重自动测量装置及方法。本发明提供的一种作物种子容重自动测量装置包括上位机电脑、相机、称重传感器及固定于称重传感器上的试样测量圆筒，试样测量圆筒由透明尺码及非透明的面板围成且设有底板；上位机电脑分别与相机及称重传感器连接；相机与透明尺码正对设置，且使得试样测量圆筒位于相机的视角内；称重传感器的数据变化触发相机进行拍摄；测量完成后，触发电磁铁打开底板自动卸料。本测试装置可适应不同体积的试样和不同种类的作物，操作简单，测试时间短且测试准确性高，自动化程度高，实用性强，硬件成本低，经济上具有可推广性。
The invention relates to the technical field of detection of physical properties of materials, in particular to an automatic measurement device and method for bulk density of crop seeds. An automatic measuring device for crop seed bulk density provided by the present invention includes a host computer, a camera, a weighing sensor and a sample measuring cylinder fixed on the weighing sensor. The sample measuring cylinder is surrounded by a transparent size and a non-transparent panel. The upper computer is connected with the camera and the weighing sensor respectively; the camera is set up in front of the transparent size, and the sample measuring cylinder is located in the viewing angle of the camera; the data change of the weighing sensor triggers the camera to shoot; After the measurement is completed, the electromagnet is triggered to open the bottom plate for automatic discharge. The test device can be adapted to samples of different volumes and different types of crops, and has simple operation, short test time, high test accuracy, high degree of automation, strong practicability, low hardware cost, and economically generalizable.
Description
技术领域technical field
本发明涉及物料的物理性质检测技术领域，尤其涉及一种作物种子容重自动测量装置及方法，具体涉及一种能对不同体积试样容重指标自动、快速、准确测量的作物种子容重自动测量装置及方法。The invention relates to the technical field of detection of physical properties of materials, in particular to an automatic measuring device and method for bulk density of crop seeds, in particular to an automatic measuring device for bulk density of crop seeds which can automatically, quickly and accurately measure the bulk density indexes of different volume samples and method.
背景技术Background technique
容重是单位体积的重量，小麦、玉米容重是一升小麦、玉米在标准的容重器实验下的重量(克)。反映了谷物子粒的饱满程度，受水分、杂质的影响。容重现在作为定等的依据，代替了过去的纯粮率，如一升，就是一个单位容积。一升谷物籽粒的重量，就叫谷物的容重。容重愈大，质量愈高，表示虫蛀空壳的、瘪瘦的籽粒愈少。The bulk density is the weight per unit volume, and the bulk density of wheat and corn is the weight (grams) of one liter of wheat and corn under the standard volumetric container experiment. It reflects the fullness of grain grains and is affected by moisture and impurities. Bulk density is now used as the basis for grading, replacing the pure grain rate in the past, such as one liter, which is a unit volume. The weight of one liter of grain grains is called grain bulk density. The larger the bulk density, the higher the quality, which means that there are fewer moth-eaten, empty shells and thin grains.
国家标准《粮油检验容重测定》GB/T5498-2013规定的粮食及油料容重测定HGT-1000型或GHC5-1000型谷物容重器进行测量,按GB5491要求，从平均样品中分出两份各约1000g。按附录B规定的筛层分4次进行筛选，每次筛选数量约250g，拣出上层筛上的大型杂质并弃除下层筛下物，合并上、下层筛上的粮食籽粒，混匀作为测定容重的试样。通过测量固定体积的样本换算成1L样本的质量作为试样容重(g/L)，即容重的计算公式为：C＝m/V。According to the requirements of GB5491, two parts of about 1000g each are separated from the average sample . According to the sieve layer specified in Appendix B, sieve in 4 times, each time the amount of sieve is about 250g, sort out the large impurities on the upper sieve and discard the under-sieve, combine the grain grains on the upper and lower sieves, and mix them for measurement Bulk-weight samples. The mass of the sample converted into 1L by measuring the sample with a fixed volume is taken as the sample bulk density (g/L), that is, the calculation formula of the bulk density is: C=m/V.
目前，主要通过谷物容重器或种子水分测量仪来测得种子容重。HGT-1000型或GHC5-1000型谷物容重器通过将试样放入固定体积的容器，刮去溢出的试样，保证待测试样的体积为固定值，通过称量器具测量重量，换算成1L试样的质量即为容重；Aqua-TR种子水分测量仪通过振动喂料装置喂入试样，喂料装置可以实现相同的体积的喂料。在完成水分测量的同时，测量喂入试样的质量，通过质量与喂料体积相除，获得试样容重数据。At present, the bulk density of seeds is mainly measured by grain volumetric devices or seed moisture measuring instruments. The HGT-1000 or GHC5-1000 grain volumetric device puts the sample into a container with a fixed volume, scrapes off the overflowing sample, and ensures that the volume of the sample to be tested is a fixed value. The mass of a 1L sample is the bulk density; the Aqua-TR seed moisture meter feeds the sample through a vibrating feeding device, which can achieve the same volume of feeding. While completing the moisture measurement, measure the mass of the fed sample, and divide the mass by the fed volume to obtain the bulk density data of the sample.
而在现有的专利申请中，如中国实用新型专利“CN200989874-振动式谷物容重仪”将待测物料装入物料储存单元的料斗，微振动器使送料槽在振动激励下产生共振，将料斗中的料斗均匀送进容量杯中。通过清料插板清除过多的物料，称重单元对容量杯中物料质量进行测量，并转换为容重值；中国发明专利“CN103196790A-谷物容重自动测量设备及方法”利用电机驱动位移传感器获得谷物在量筒中的高度，利用高度计算出量筒中谷物的体积。同时称重传感器获得谷物重量，通过谷物的籽粒与体积相除获取容重，从而实现容重的自动获取。In the existing patent applications, such as the Chinese utility model patent "CN200989874-vibrating grain density meter", the material to be tested is loaded into the hopper of the material storage unit, and the micro vibrator makes the feeding trough resonate under the vibration excitation, and the hopper The hopper in the container feeds evenly into the volumetric cup. Excessive material is removed through the clearing plate, and the weighing unit measures the quality of the material in the capacity cup and converts it into a volumetric value; the Chinese invention patent "CN103196790A-Automatic measurement equipment and method for grain volumetric weight" uses a motor-driven displacement sensor to obtain the grain in the The height in the measuring cylinder, which is used to calculate the volume of grain in the measuring cylinder. At the same time, the weighing sensor obtains the weight of the grain, and the bulk density is obtained by dividing the grain of the grain with the volume, so as to realize the automatic acquisition of the bulk density.
上述提及的HGT-1000型或GHC5-1000型谷物容重器以及中国实用新型专利“CN200989874-振动式谷物容重仪”所述的技术方案都是使用固定容积的料筒盛取谷物，刮掉多余的部分，同时称量该部分的谷物重量，换算出谷物容重。这种方式无法实现不定体积或较少体积的谷物容重测量，且在进行谷物容重自动测量时，需要手动补满或去除多余的部分。Aqua-TR种子水分测量仪也是通过加入固定体积的试样，与上面两种仪器类似。中国发明专利“CN103196790A-谷物容重自动测量设备及方法”通过电机驱动位移传感器测量谷物体积，可以实现对不同体积的试样容重测量，但是测量过程复杂，耗费时间较长，不利于节约时间资源。The above-mentioned HGT-1000 or GHC5-1000 grain volume tester and the technical scheme described in the Chinese utility model patent "CN200989874-vibration grain volumetric instrument" all use a fixed-volume barrel to hold the grain and scrape off excess grain. At the same time, weigh the grain weight of this part, and convert the grain density. This method cannot realize the grain test weight measurement of indefinite volume or less volume, and when performing automatic grain test weight measurement, it is necessary to manually fill up or remove the redundant part. The Aqua-TR seed moisture meter also works by adding a fixed volume of sample, similar to the above two instruments. The Chinese invention patent "CN103196790A-Automatic Grain Bulk Weight Measurement Equipment and Method" uses a motor-driven displacement sensor to measure the grain volume, which can realize the measurement of sample weight of different volumes, but the measurement process is complicated and time-consuming, which is not conducive to saving time and resources.
发明内容Contents of the invention
(一)要解决的技术问题(1) Technical problems to be solved
本发明要解决的技术问题是解决现有的作物容重测量装置不能满足对不同体积试样容重指标自动、快速、准确测量的问题。The technical problem to be solved by the invention is to solve the problem that the existing crop bulk density measuring device cannot meet the automatic, fast and accurate measurement of the bulk density indexes of different volume samples.
(二)技术方案(2) Technical solution
为了解决上述技术问题，本发明提供了一种作物种子容重自动测量装置，该自动测量装置包括上位机电脑、相机、称重传感器及固定于所述称重传感器上的试样测量圆筒，所述试样测量圆筒由透明尺码及非透明的面板围成，且在所述试样测量圆筒的底部设有底板；所述上位机电脑分别与所述相机及所述称重传感器连接；所述相机与所述透明尺码正对设置，且使得所述试样测量圆筒位于所述相机的视角内，并将拍摄得到的所述试样测量圆筒内待测样品图像传输至所述上位机电脑中；所述称重传感器用于测量所述试样测量圆筒内待测样品的重量并将其传输至所述上位机电脑中；所述称重传感器的数据变化触发所述相机进行拍摄。In order to solve the above-mentioned technical problems, the present invention provides an automatic measuring device for bulk density of crop seeds. The automatic measuring device includes a host computer, a camera, a load cell and a sample measuring cylinder fixed on the load cell. The sample measuring cylinder is surrounded by a transparent size and a non-transparent panel, and a bottom plate is provided at the bottom of the sample measuring cylinder; the host computer is connected to the camera and the load cell respectively; The camera is set facing the transparent size, and the sample measurement cylinder is located within the viewing angle of the camera, and the captured image of the sample to be measured in the sample measurement cylinder is transmitted to the In the host computer; the load cell is used to measure the weight of the sample to be measured in the sample measuring cylinder and transmit it to the host computer; the data change of the load sensor triggers the camera to shoot.
其中，所述底板与所述试样测量圆筒之间通过触发电磁铁进行开启或闭合操作。Wherein, the opening or closing operation is performed between the bottom plate and the sample measuring cylinder by triggering an electromagnet.
其中，所述透明尺码采用透明亚克力材质制成，且所述透明尺码的测量精度为1mm，最大测量高度为20cm。Wherein, the transparent size is made of transparent acrylic material, and the measurement accuracy of the transparent size is 1 mm, and the maximum measurement height is 20 cm.
其中，所述相机为CCD相机，且所述相机具有MiniUSB2.0接口。Wherein, the camera is a CCD camera, and the camera has a MiniUSB2.0 interface.
其中，所述称重传感器的测量精度为0.01g，最大称重为2kg，且所述称重传感器具有RS-232串口传输接口。Wherein, the measurement accuracy of the weighing sensor is 0.01g, the maximum weighing is 2kg, and the weighing sensor has an RS-232 serial port transmission interface.
其中，所述面板采用金属或其他非透明的材质制成。Wherein, the panel is made of metal or other non-transparent materials.
本发明还提供了一种作物种子容重自动测量装置的使用方法，如下步骤：The present invention also provides a method for using an automatic measuring device for bulk density of crop seeds, as follows:
S1、将称重传感器、底板及试样测量圆筒固定安装在垂直墙面上，将相机正对于透明尺码所在的平面设置，并使得试样测量圆筒位于相机的视角范围内；S1. Fix the load cell, bottom plate and sample measuring cylinder on the vertical wall, set the camera facing the plane where the transparent size is located, and make the sample measuring cylinder within the viewing angle range of the camera;
S2、将称重传感器与相机分别通过RS-232串口与USB接口与上位机电脑连接；S2. Connect the weighing sensor and the camera to the host computer through the RS-232 serial port and the USB interface respectively;
S3、将待测样品倒入试样测量圆筒中，通过称重传感器测得待测样品的重量m，并将其重量传输至上位机电脑；称重传感器传输的数据变化的同时触发相机对试样测量圆筒进行拍摄，并将待测样品图像传输至上位机电脑；S3. Pour the sample to be tested into the sample measuring cylinder, measure the weight m of the sample to be tested by the load cell, and transmit its weight to the host computer; when the data transmitted by the load cell changes, the camera is triggered to test The sample measuring cylinder is used to take pictures, and the image of the sample to be tested is transmitted to the host computer;
S4、分析步骤S3中的待测样品图像，得到待测样品在试样测量圆筒中的高度h；结合试样测量圆筒的底面积S，计算此时待测样品的体积：V＝S×h；结合步骤S3中的待测样品的重量m，则此时待测样品的容积C＝m/V。S4. Analyze the image of the sample to be tested in step S3 to obtain the height h of the sample to be tested in the sample measurement cylinder; combine the bottom area S of the sample measurement cylinder to calculate the volume of the sample to be tested at this time: V=S× h; combined with the weight m of the sample to be tested in step S3, the volume of the sample to be tested at this time is C=m/V.
其中，该作物种子容重自动测量装置的使用方法还包括步骤S5、完成测试后，通过触发电磁铁推动底板，使得底板与试样测量圆筒处于开启状态，进行卸料作业，清除试样后等待下次测量。Wherein, the method of using the crop seed bulk density automatic measuring device also includes step S5. After the test is completed, the bottom plate is pushed by triggering the electromagnet, so that the bottom plate and the sample measuring cylinder are in an open state, and the unloading operation is performed, and the sample is removed and then waits. Next time measure.
(三)有益效果(3) Beneficial effects
本发明的上述技术方案具有如下优点：本发明提供的一种作物种子容重自动测量装置包括上位机电脑、相机、称重传感器及固定于称重传感器上的试样测量圆筒，试样测量圆筒由透明尺码及非透明的面板围成，且在试样测量圆筒的底部设有底板；上位机电脑分别与相机及称重传感器连接；相机与透明尺码正对设置，且使得试样测量圆筒位于相机的视角内，并将拍摄得到的试样测量圆筒内待测样品图像传输至上位机电脑中；称重传感器与试样测量圆筒连接，用于测量试样测量圆筒内待测样品的重量并将其传输至上位机电脑中；称重传感器的数据变化触发相机进行拍摄；测量结束后，触发电磁铁打开底板自动卸料。本测试装置可适应不同体积的试样和不同种类的作物，并通过触发方式进行数据采集及通过上位机电脑对采集数据进行分析，操作简单，测试时间短且测试准确性高，且无需人工操作，自动化程度高，实用性强，硬件成本低，经济上具有可推广性。The above-mentioned technical scheme of the present invention has the following advantages: a kind of crop seed bulk density automatic measuring device provided by the present invention comprises host computer computer, camera, weighing sensor and the sample measuring cylinder fixed on the weighing sensor, the sample measuring cylinder The cylinder is surrounded by a transparent size and a non-transparent panel, and a bottom plate is provided at the bottom of the sample measurement cylinder; the host computer is connected to the camera and the load cell respectively; the camera and the transparent size are set directly to make the sample measurement The cylinder is located in the viewing angle of the camera, and the image of the sample to be tested in the sample measurement cylinder captured by the camera is transmitted to the host computer; the load cell is connected to the sample measurement cylinder for measuring the sample measurement cylinder. The weight of the sample to be measured is transmitted to the host computer; the data change of the load cell triggers the camera to take pictures; after the measurement is completed, the electromagnet is triggered to open the bottom plate to automatically unload. This test device can adapt to samples of different volumes and different types of crops, and collect data through triggering and analyze the collected data through the host computer. The operation is simple, the test time is short and the test accuracy is high, and no manual operation is required. , high degree of automation, strong practicability, low hardware cost, economically scalable.
附图说明Description of drawings
图1是本发明实施例一种作物种子容重自动测量装置的结构示意图；Fig. 1 is the structural representation of a kind of crop seed bulk density automatic measuring device of the embodiment of the present invention;
图2是本发明实施例一种作物种子容重自动测量装置中的试样测量圆筒的正视图；Fig. 2 is the front view of the sample measuring cylinder in a kind of crop seed bulk density automatic measuring device according to the embodiment of the present invention;
图3是本发明实施例一种作物种子容重自动测量装置中的试样测量圆筒的俯视图。Fig. 3 is a top view of a sample measuring cylinder in an automatic measuring device for bulk density of crop seeds according to an embodiment of the present invention.
图中：1：面板；2：透明尺码；3：称重传感器；4：相机；5：上位机电脑；6：底板。In the figure: 1: panel; 2: transparent size; 3: load cell; 4: camera; 5: host computer; 6: bottom plate.
具体实施方式detailed description
为使本发明实施例的目的、技术方案和优点更加清楚，下面将结合本发明实施例中的附图，对本发明实施例中的技术方案进行清楚、完整地描述，显然，所描述的实施例是本发明的一部分实施例，而不是全部的实施例。基于本发明中的实施例，本领域普通技术人员在没有做出创造性劳动的前提下所获得的所有其他实施例，都属于本发明保护的范围。In order to make the purpose, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments It is a part of embodiments of the present invention, but not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the protection scope of the present invention.
如图1至图3所示，本发明实施例提供了一种作物种子容重自动测量装置，该测试装置包括上位机电脑5、相机4、称重传感器3及固定于称重传感器3上的试样测量圆筒，试样测量圆筒由透明尺码2及非透明的面板1围成，且在试样测量圆筒的底部设有底板6；其中透明尺码2上标注有高度数字，与相机4结合用来测量试样测量圆筒内待测样品的高度；上位机电脑5分别与相机4及称重传感器3连接；相机4与透明尺码2正对设置，正对设置指的是相机4镜头所在的轴线与透明尺码2所在的平面垂直设置，且使得试样测量圆筒位于相机4的视角内，并将拍摄得到的试样测量圆筒内待测样品图像传输至上位机电脑5中进行后续处理；称重传感器3与试样测量圆筒连接，用于测量试样测量圆筒内待测样品的重量并将其传输至上位机电脑5中处理；其中，值得注意的是，在本实施例中，称重传感器3的数据变化触发相机4进行拍摄，这种触发模式指的是当称重传感器3测得并显示试样测量圆筒内待测样品的重量时，此时会激发相机4对试样测量圆筒进行拍摄。通过这种触发方式进行数据采集，并通过上位机电脑对采集数据进行分析，操作简单，测得时间短且测试准确，且无需人工操作，自动化程度高，实用性强，适用范围广。除此之外，本测试装置可对不同体积试样和不同种类的作物的容重进行测试，例如水稻、小麦、大豆、玉米等做种作物均能检测，适用范围广，检测效率高，硬件成本低，在经济上具有可推广性。As shown in Fig. 1 to Fig. 3, the embodiment of the present invention provides a kind of crop seed bulk density automatic measuring device, and this testing device comprises host computer 5, camera 4, weighing sensor 3 and the test device fixed on weighing sensor 3 The sample measurement cylinder is surrounded by a transparent size 2 and a non-transparent panel 1, and a bottom plate 6 is provided at the bottom of the sample measurement cylinder; the height number is marked on the transparent size 2, and the camera 4 Combined to measure the height of the sample to be tested in the test cylinder; the host computer 5 is connected to the camera 4 and the load cell 3 respectively; the camera 4 is set facing the transparent size 2, and the facing setting refers to the lens of the camera 4 The axis where it is located is set perpendicular to the plane where the transparent size 2 is located, and the sample measurement cylinder is located within the viewing angle of the camera 4, and the captured image of the sample to be measured in the sample measurement cylinder is transmitted to the host computer 5 for further processing. Subsequent processing; the load cell 3 is connected with the sample measuring cylinder, used to measure the weight of the sample to be measured in the sample measuring cylinder and transmit it to the host computer 5 for processing; wherein, it is worth noting that in this In the embodiment, the data change of the load cell 3 triggers the camera 4 to take pictures. This trigger mode means that when the load cell 3 measures and displays the weight of the sample to be measured in the sample measurement cylinder, it will trigger The camera 4 photographs the sample measuring cylinder. Data collection is carried out through this triggering method, and the collected data is analyzed by the host computer. The operation is simple, the measurement time is short and the test is accurate, and no manual operation is required. The degree of automation is high, the practicability is strong, and the application range is wide. In addition, this test device can test the bulk density of samples of different volumes and different types of crops, such as rice, wheat, soybeans, corn and other crops can be tested, with a wide range of applications, high detection efficiency, and low hardware costs. Low and economically scalable.
具体地，在本申请的测量装置是采用机器视觉的方式来计算试样测量圆筒内待测样品的体积，在完成体积测量后无需单独采用天平称得试样质量换算容重。只需将待测样品放入试样测量圆筒内，系统自动获得试样体积和称重并直接计算出容重，并完成试样自动卸料，无需多余的动作即可完成试样容重测量。Specifically, the measuring device in this application uses machine vision to calculate the volume of the sample to be measured in the sample measuring cylinder, and does not need to use a balance to separately weigh the sample mass-converted volumetric weight after completing the volume measurement. Just put the sample to be tested into the sample measuring cylinder, the system automatically obtains the sample volume and weighing and directly calculates the bulk density, and completes the automatic unloading of the sample, and the sample bulk density measurement can be completed without redundant actions.
具体地，底板6与试样测量圆筒之间通过触发电磁铁进行开启或闭合操作。在本实施例中，为能够实现试样容重的自动测量和卸料动作，可以实现试样容重连续快速的测量，特地设有能通过触发电磁铁的方式对底板6与试样测量圆筒之间的开启和闭合操作，由此，无需手动将试样样品倒出，能进一步提高检测效率，有利于节约时间资源。Specifically, the opening or closing operation is performed between the bottom plate 6 and the sample measuring cylinder by triggering an electromagnet. In this embodiment, in order to realize the automatic measurement and unloading action of the sample bulk density, which can realize the continuous and rapid measurement of the sample bulk density, there is a special device that can trigger the electromagnet to control the distance between the bottom plate 6 and the sample measuring cylinder. The opening and closing operation of the chamber, so that there is no need to manually pour out the sample sample, which can further improve the detection efficiency and help save time and resources.
优选地，透明尺码2采用透明亚克力材质制成，且透明尺码2的测量精度为1mm，能进一步提高测得高度的准确性，最大测量高度为20cm。在本实施例中，选用透明的亚克力材质，透光性好，提高相机4的拍摄质量，硬度大，耐磨性强，稳定性好，使用寿命长，有利于降低经济成本。Preferably, the transparent size 2 is made of transparent acrylic material, and the measurement accuracy of the transparent size 2 is 1mm, which can further improve the accuracy of the measured height, and the maximum measured height is 20cm. In this embodiment, a transparent acrylic material is selected, which has good light transmission, improves the shooting quality of the camera 4, has high hardness, strong wear resistance, good stability, and long service life, which is beneficial to reduce economic costs.
优选地，相机4为CCD相机，且相机4具有MiniUSB2.0接口，传输速度快，节约处理时间。通过机器视觉来计算试样测量圆筒内待测样品的体积，在本实施例中，选用CCD相机作为图像摄取装置，将被摄取目标转换成图像信号，传送给上位机电脑5中的专用的图像处理系统进行后续处理。Preferably, the camera 4 is a CCD camera, and the camera 4 has a MiniUSB2.0 interface, which has a fast transmission speed and saves processing time. The volume of the sample to be measured in the sample measuring cylinder is calculated by machine vision. In this embodiment, a CCD camera is selected as the image capture device, and the captured target is converted into an image signal, which is sent to the dedicated computer in the host computer 5. The image processing system performs subsequent processing.
优选地，称重传感器3的测量精度为0.01g，能进一步提高测得高度的准确性，最大称重为2kg，且称重传感器3具有RS-232串口传输接口，传输速度快，节约处理时间。在本实施例中，称重传感器3能将作用在被测物体上的重力按一定比例转换成可计量的输出信号，对加载点变化不敏感，抗偏载性能好，安装方便，制造成本低，在保证了测得准确性的同时，也有利于经济性。Preferably, the measurement accuracy of the load cell 3 is 0.01g, which can further improve the accuracy of the measured height, the maximum weighing is 2kg, and the load cell 3 has an RS-232 serial port transmission interface, the transmission speed is fast, and the processing time is saved . In this embodiment, the load cell 3 can convert the gravity acting on the measured object into a measurable output signal in a certain proportion, is insensitive to the change of the loading point, has good anti-eccentric load performance, is easy to install, and has low manufacturing cost , while ensuring the accuracy of measurement, it is also beneficial to economy.
具体地，面板1采用金属或其他非透明的材质制成。在本实施例中，面板1采用非透明材质，避免了反光灯现象的发生，从而避免影响相机4拍摄图像的质量，进而保证测试准确性。Specifically, the panel 1 is made of metal or other non-transparent materials. In this embodiment, the panel 1 is made of a non-transparent material, which avoids the occurrence of the reflection light phenomenon, thereby avoiding affecting the quality of the image captured by the camera 4, thereby ensuring the accuracy of the test.
本发明还提供了一种作物种子容重自动测量装置的使用方法，其包括以下步骤：The present invention also provides a method for using an automatic measuring device for bulk density of crop seeds, which includes the following steps:
S1、将称重传感器3、底板6及试样测量圆筒固定安装在垂直墙面上，此垂直墙面指的是与地平面相垂直的竖直面，将相机4正对于透明尺码2所在的平面设置，即相机4镜头所在的轴线与透明尺码2所在的平面垂直设置，并使得试样测量圆筒位于相机4的视角范围内；S1. Fix the load cell 3, the bottom plate 6 and the sample measuring cylinder on the vertical wall. The vertical wall refers to the vertical surface perpendicular to the ground plane. The camera 4 is facing the transparent size 2. The plane setting, that is, the axis where the lens of the camera 4 is located is perpendicular to the plane where the transparent size 2 is located, and the sample measurement cylinder is located within the viewing angle range of the camera 4;
S2、将称重传感器3与相机4分别通过RS-232串口与USB接口与上位机电脑连接，为测量做好准备工作；S2. Connect the load cell 3 and the camera 4 to the host computer through the RS-232 serial port and the USB interface respectively, so as to prepare for the measurement;
S3、将待测样品倒入试样测量圆筒中，通过称重传感器3测得待测样品的重量m，并将其重量传输至上位机电脑5；称重传感器3传输的数据变化的同时触发相机4对试样测量圆筒进行拍摄，并将待测样品图像传输至上位机电脑5；S3. Pour the sample to be tested into the sample measuring cylinder, measure the weight m of the sample to be tested by the load cell 3, and transmit its weight to the host computer 5; trigger the trigger at the same time as the data transmitted by the load cell 3 changes The camera 4 takes pictures of the sample measuring cylinder, and transmits the image of the sample to be tested to the host computer 5;
S4、分析步骤S3中的待测样品图像，通过上位机电脑5中的专用的图像处理系统处理，得到待测样品在试样测量圆筒中的高度h；结合试样测量圆筒的底面积S，计算此时待测样品的体积：V＝S×h；结合步骤S3中的待测样品的重量m，则此时待测样品的容积C＝m/V。S4, the image of the sample to be tested in the analysis step S3 is processed by the dedicated image processing system in the host computer 5 to obtain the height h of the sample to be tested in the sample measurement cylinder; combined with the bottom area S of the sample measurement cylinder , calculate the volume of the sample to be tested at this time: V=S×h; combined with the weight m of the sample to be tested in step S3, then the volume of the sample to be tested at this time C=m/V.
进一步地，该作物种子容重自动测量装置的使用方法还包括步骤S5、完成测试后，通过触发电磁铁推动底板6，使得底板6与试样测量圆筒处于开启状态，进行卸料作业，清除试样后等待下次测量。Further, the method for using the crop seed bulk density automatic measurement device also includes step S5. After the test is completed, the base plate 6 is pushed by triggering the electromagnet, so that the base plate 6 and the sample measuring cylinder are in an open state, and the unloading operation is performed, and the test sample is cleared. After sampling, wait for the next measurement.
综上所述，本发明提供的一种作物种子容重自动测量装置包括上位机电脑、相机、称重传感器及固定于称重传感器上的试样测量圆筒，试样测量圆筒由透明尺码及非透明的面板围成，且在试样测量圆筒的底部设有底板；上位机电脑分别与相机及称重传感器连接；相机与透明尺码正对设置，且使得试样测量圆筒位于相机的视角内，并将拍摄得到的试样测量圆筒内待测样品图像传输至上位机电脑中；称重传感器与试样测量圆筒连接，用于测量试样测量圆筒内待测样品的重量并将其传输至上位机电脑中；称重传感器的数据变化触发相机进行拍摄；测量完成后，触发电磁铁打开底板自动卸料。本测试装置可适应不同体积的试样和不同种类的作物，并通过触发方式进行数据采集及通过上位机电脑对采集数据进行分析，操作简单，测试时间短且测试准确性高，且无需人工操作，自动化程度高，实用性强，硬件成本低，经济上具有可推广性。In summary, a kind of automatic measuring device for crop seed bulk density provided by the present invention includes a host computer, a camera, a load cell and a sample measuring cylinder fixed on the load cell. The sample measuring cylinder is composed of a transparent size and Enclosed by a non-transparent panel, and a bottom plate is provided at the bottom of the sample measuring cylinder; the host computer is connected to the camera and the load cell respectively; the camera is set directly opposite the transparent scale, and the sample measuring cylinder is located within the angle of view, and transmit the image of the sample to be tested in the sample measuring cylinder captured by the camera to the host computer; the load cell is connected to the sample measuring cylinder to measure the weight of the sample to be tested in the sample measuring cylinder And transmit it to the host computer; the data change of the load cell triggers the camera to take pictures; after the measurement is completed, the electromagnet is triggered to open the bottom plate to automatically unload. This test device can adapt to samples of different volumes and different types of crops, and collect data through triggering and analyze the collected data through the host computer. The operation is simple, the test time is short and the test accuracy is high, and no manual operation is required. , high degree of automation, strong practicability, low hardware cost, economically scalable.
最后应说明的是：以上实施例仅用以说明本发明的技术方案，而非对其限制；尽管参照前述实施例对本发明进行了详细的说明，本领域的普通技术人员应当理解：其依然可以对前述各实施例所记载的技术方案进行修改，或者对其中部分技术特征进行等同替换；而这些修改或者替换，并不使相应技术方案的本质脱离本发明各实施例技术方案的精神和范围。Finally, it should be noted that: the above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit them; although the present invention has been described in detail with reference to the foregoing embodiments, those of ordinary skill in the art should understand that: it can still be Modifications are made to the technical solutions described in the foregoing embodiments, or equivalent replacements are made to some of the technical features; and these modifications or replacements do not make the essence of the corresponding technical solutions deviate from the spirit and scope of the technical solutions of the various embodiments of the present invention.
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Application publication date: 20160622 |