CN105784636A - An online inspection system for chemical fertilizer quality - Google Patents
An online inspection system for chemical fertilizer quality Download PDFInfo
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- 239000003337 fertilizer Substances 0.000 title claims abstract description 64
- 239000000126 substance Substances 0.000 title claims description 30
- 238000007689 inspection Methods 0.000 title description 6
- 239000000523 sample Substances 0.000 claims abstract description 88
- 238000001514 detection method Methods 0.000 claims abstract description 60
- 230000003287 optical effect Effects 0.000 claims abstract description 42
- 238000004891 communication Methods 0.000 claims abstract description 21
- 230000005540 biological transmission Effects 0.000 claims abstract description 10
- 238000004445 quantitative analysis Methods 0.000 claims abstract description 10
- 238000006243 chemical reaction Methods 0.000 claims abstract description 7
- 238000001228 spectrum Methods 0.000 claims abstract description 7
- 239000013307 optical fiber Substances 0.000 claims description 23
- 238000004519 manufacturing process Methods 0.000 claims description 12
- 230000003595 spectral effect Effects 0.000 claims description 6
- 238000000034 method Methods 0.000 claims description 4
- 238000002329 infrared spectrum Methods 0.000 claims description 3
- 230000008569 process Effects 0.000 claims description 2
- 230000005693 optoelectronics Effects 0.000 claims 3
- 239000004020 conductor Substances 0.000 claims 1
- 210000003141 lower extremity Anatomy 0.000 claims 1
- 238000012806 monitoring device Methods 0.000 abstract description 13
- 230000006378 damage Effects 0.000 abstract description 6
- 239000003153 chemical reaction reagent Substances 0.000 abstract description 3
- 238000003912 environmental pollution Methods 0.000 abstract 1
- 239000000835 fiber Substances 0.000 description 14
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 description 10
- 229910052757 nitrogen Inorganic materials 0.000 description 5
- OAICVXFJPJFONN-UHFFFAOYSA-N Phosphorus Chemical compound [P] OAICVXFJPJFONN-UHFFFAOYSA-N 0.000 description 4
- ZLMJMSJWJFRBEC-UHFFFAOYSA-N Potassium Chemical compound [K] ZLMJMSJWJFRBEC-UHFFFAOYSA-N 0.000 description 4
- 229910052698 phosphorus Inorganic materials 0.000 description 4
- 239000011574 phosphorus Substances 0.000 description 4
- 239000011591 potassium Substances 0.000 description 4
- 229910052700 potassium Inorganic materials 0.000 description 4
- 238000004458 analytical method Methods 0.000 description 3
- 239000002689 soil Substances 0.000 description 3
- 238000010586 diagram Methods 0.000 description 2
- 239000007789 gas Substances 0.000 description 2
- 235000015097 nutrients Nutrition 0.000 description 2
- ZOXJGFHDIHLPTG-UHFFFAOYSA-N Boron Chemical compound [B] ZOXJGFHDIHLPTG-UHFFFAOYSA-N 0.000 description 1
- FYYHWMGAXLPEAU-UHFFFAOYSA-N Magnesium Chemical compound [Mg] FYYHWMGAXLPEAU-UHFFFAOYSA-N 0.000 description 1
- 241001465754 Metazoa Species 0.000 description 1
- XSQUKJJJFZCRTK-UHFFFAOYSA-N Urea Chemical compound NC(N)=O XSQUKJJJFZCRTK-UHFFFAOYSA-N 0.000 description 1
- HCHKCACWOHOZIP-UHFFFAOYSA-N Zinc Chemical compound [Zn] HCHKCACWOHOZIP-UHFFFAOYSA-N 0.000 description 1
- 230000002411 adverse Effects 0.000 description 1
- 230000004071 biological effect Effects 0.000 description 1
- OHJMTUPIZMNBFR-UHFFFAOYSA-N biuret Chemical compound NC(=O)NC(N)=O OHJMTUPIZMNBFR-UHFFFAOYSA-N 0.000 description 1
- 229910052796 boron Inorganic materials 0.000 description 1
- 239000004202 carbamide Substances 0.000 description 1
- 238000005056 compaction Methods 0.000 description 1
- -1 crops Substances 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000004821 distillation Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000036541 health Effects 0.000 description 1
- 239000012535 impurity Substances 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 239000011777 magnesium Substances 0.000 description 1
- 229910052749 magnesium Inorganic materials 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012544 monitoring process Methods 0.000 description 1
- 235000006180 nutrition needs Nutrition 0.000 description 1
- 230000001863 plant nutrition Effects 0.000 description 1
- 238000003860 storage Methods 0.000 description 1
- 231100000331 toxic Toxicity 0.000 description 1
- 230000002588 toxic effect Effects 0.000 description 1
- 239000002699 waste material Substances 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
- 238000005303 weighing Methods 0.000 description 1
- 229910052725 zinc Inorganic materials 0.000 description 1
- 239000011701 zinc Substances 0.000 description 1
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N21/00—Investigating or analysing materials by the use of optical means, i.e. using sub-millimetre waves, infrared, visible or ultraviolet light
- G01N21/17—Systems in which incident light is modified in accordance with the properties of the material investigated
- G01N21/25—Colour; Spectral properties, i.e. comparison of effect of material on the light at two or more different wavelengths or wavelength bands
- G01N21/31—Investigating relative effect of material at wavelengths characteristic of specific elements or molecules, e.g. atomic absorption spectrometry
- G01N21/35—Investigating relative effect of material at wavelengths characteristic of specific elements or molecules, e.g. atomic absorption spectrometry using infrared light
- G01N21/359—Investigating relative effect of material at wavelengths characteristic of specific elements or molecules, e.g. atomic absorption spectrometry using infrared light using near infrared light
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N21/00—Investigating or analysing materials by the use of optical means, i.e. using sub-millimetre waves, infrared, visible or ultraviolet light
- G01N21/17—Systems in which incident light is modified in accordance with the properties of the material investigated
- G01N21/25—Colour; Spectral properties, i.e. comparison of effect of material on the light at two or more different wavelengths or wavelength bands
- G01N21/31—Investigating relative effect of material at wavelengths characteristic of specific elements or molecules, e.g. atomic absorption spectrometry
- G01N21/35—Investigating relative effect of material at wavelengths characteristic of specific elements or molecules, e.g. atomic absorption spectrometry using infrared light
- G01N21/3563—Investigating relative effect of material at wavelengths characteristic of specific elements or molecules, e.g. atomic absorption spectrometry using infrared light for analysing solids; Preparation of samples therefor
-
- G—PHYSICS
- G08—SIGNALLING
- G08C—TRANSMISSION SYSTEMS FOR MEASURED VALUES, CONTROL OR SIMILAR SIGNALS
- G08C17/00—Arrangements for transmitting signals characterised by the use of a wireless electrical link
- G08C17/02—Arrangements for transmitting signals characterised by the use of a wireless electrical link using a radio link
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- Physics & Mathematics (AREA)
- Spectroscopy & Molecular Physics (AREA)
- General Physics & Mathematics (AREA)
- Biochemistry (AREA)
- Chemical & Material Sciences (AREA)
- Analytical Chemistry (AREA)
- Life Sciences & Earth Sciences (AREA)
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- Investigating Or Analysing Materials By Optical Means (AREA)
Abstract
Description
【技术领域】【Technical field】
本发明涉及化肥质量检测技术领域，特别是涉及一种化肥质量在线检测系统。The invention relates to the technical field of chemical fertilizer quality detection, in particular to an online chemical fertilizer quality detection system.
【背景技术】【Background technique】
在我国现行的肥料管理法规《肥料登记办法》中，肥料是指“用于提供、保持或改善植物营养和土壤物理、化学性能及生物活性，能提高农产品产量，或改善农产品品质，或增强植物抗逆性”的物质，化肥质量主要包括：氮、磷、钾、镁、硼、锌等和水分以及化肥生产过程中的有毒有害物质如缩二脲等。化肥产品不合格会给农作物带来严重危害。例如：目前，化肥大多含有氮、磷、钾三种主要养分，其中尿素含量即氮含量是肥料的关键质量指标，且其中所含的杂质例如缩二脲，当其含量超过1％时，会对作物的生长产生不良影响，即“烧苗”，水分含量过高会使化肥产生板结，不利于储存及运输。目前化肥质量分析主要依靠传统实验室分析方法，这种方法所用试剂多、并且涉及称量、溶解、消化、蒸馏、滴定、计算等操作步骤，费时费力；强酸强碱以及高温加热对实验操作人员存在一定的危险性，而且会对环境造成影响。这些局限性在一定程度上影响了化肥的生产、销售和合理使用。另外，我国在化肥生产和应用上重氮轻磷、钾、，造成资源浪费，污染环境，危害人类和动植物健康，同时氮、磷、钾比例失调不能满足农作物适时生长的营养需求。解决这个问题，要实现土壤、作物、化肥三者有机的结合和统一，做到因土施肥、因时施肥、因作物施肥、因肥施用的统一来实现农业可持续的稳产、高产、高效益、低成本，因此寻找一种快速、准确的新型分析方法来实现化肥养分的快速检测，成为新世纪人们普遍关心的课题之一。In my country's current fertilizer management regulations "Fertilizer Registration Measures", fertilizer refers to "used to provide, maintain or improve plant nutrition and soil physical, chemical properties and biological activities, can increase the output of agricultural products, or improve the quality of agricultural products, or enhance plant The quality of chemical fertilizers mainly includes: nitrogen, phosphorus, potassium, magnesium, boron, zinc, etc. and water, as well as toxic and harmful substances such as biurets in the production process of chemical fertilizers. Unqualified fertilizer products will cause serious harm to crops. For example: At present, most of the chemical fertilizers contain three main nutrients: nitrogen, phosphorus, and potassium. Among them, the urea content, that is, the nitrogen content, is the key quality index of fertilizers, and the impurities contained in it, such as biuret, when the content exceeds 1%, will It has adverse effects on the growth of crops, that is, "burning seedlings". Excessive moisture content will cause fertilizer compaction, which is not conducive to storage and transportation. At present, the quality analysis of chemical fertilizers mainly relies on traditional laboratory analysis methods. This method uses many reagents and involves steps such as weighing, dissolving, digesting, distillation, titrating, and calculating, which is time-consuming and laborious; There is a certain risk and will have an impact on the environment. These limitations have affected the production, sales and rational use of chemical fertilizers to a certain extent. In addition, the production and application of chemical fertilizers in our country are heavy on nitrogen and light on phosphorus and potassium, which causes waste of resources, pollutes the environment, and endangers the health of humans, animals and plants. At the same time, the imbalance of nitrogen, phosphorus and potassium cannot meet the nutritional needs of crops for timely growth. To solve this problem, it is necessary to realize the organic combination and unification of soil, crops, and chemical fertilizers, and achieve the unification of soil, time, crop, and fertilizer application to achieve sustainable, stable, high-yield, and high-efficiency agriculture. , low cost, so looking for a fast and accurate new analysis method to realize the rapid detection of fertilizer nutrients has become one of the topics that people generally care about in the new century.
为解决上述技术问题需要提供一种化肥质量在线检测系统。In order to solve the above technical problems, it is necessary to provide an online inspection system for the quality of chemical fertilizers.
【发明内容】【Content of invention】
本发明的目的是为了克服现有技术的缺陷，提供一种化肥质量在线检测系统，该技术方便、快速、高效、准确、成本较低、不破坏样品、不消耗化学试剂且不污染环境。The purpose of the present invention is to overcome the defects of the prior art and provide an online inspection system for fertilizer quality, which is convenient, fast, efficient, accurate, low in cost, does not damage samples, does not consume chemical reagents, and does not pollute the environment.
本发明为实现上述目的，采用以下技术方案：In order to achieve the above object, the present invention adopts the following technical solutions:
一种化肥质量在线检测系统，包括位于化肥生产现场的样品传送带16、光学探头、检测和控制单元17、V型挡板3，化肥样品通过样品传送带16传送，光学探头安装在样品传送带16上方，V型挡板3装配在光学探头下部的前端，V型挡板3的夹角和光学探头的大小相匹配，化肥样品在样品传送带16上传输的过程中，V型挡板3和光学探头下侧插入化肥样品，检测和控制单元17内置无线通讯模块，光学探头将采集到的光谱传送到检测和控制单元17进行分光和光电转换之后产生的信号传输给无线通讯模块，所述化肥质量在线检测系统进一步包括主服务器监控装置20，无线通讯模块与主服务器监控装置20无线连接，主服务器监控装置20用于对从无线通讯模块接收到的信号进行建模和定量分析。An on-line inspection system for chemical fertilizer quality, including a sample conveyor belt 16 located at the fertilizer production site, an optical probe, a detection and control unit 17, and a V-shaped baffle 3, the fertilizer sample is transmitted through the sample conveyor belt 16, and the optical probe is installed above the sample conveyor belt 16, The V-shaped baffle 3 is assembled on the front end of the lower part of the optical probe. The angle between the V-shaped baffle 3 and the size of the optical probe match. The fertilizer sample is inserted into the side, and the detection and control unit 17 has a built-in wireless communication module. The optical probe transmits the collected spectrum to the detection and control unit 17 for spectroscopic and photoelectric conversion. The system further includes a main server monitoring device 20, the wireless communication module is wirelessly connected with the main server monitoring device 20, and the main server monitoring device 20 is used for modeling and quantitative analysis of the signal received from the wireless communication module.
优选，所述光学探头包括传导光纤4、位于光学探头底端的传导光纤接口18、近红外光源19，所述光学探头至少有1个，传导光纤4的一端固定安装在传导光纤接口18内，用来采集光信号，另一端连接到检测和控制单元17，将传导光纤4采集到的光谱传送到检测和控制单元17进行分光和光电转换，近红外光源19固定在光学探头的底端。Preferably, the optical probe includes a conductive fiber 4, a conductive fiber interface 18 positioned at the bottom of the optical probe, and a near-infrared light source 19. There is at least one optical probe, and one end of the conductive fiber 4 is fixedly installed in the conductive fiber interface 18. The other end is connected to the detection and control unit 17, and the spectrum collected by the guide fiber 4 is sent to the detection and control unit 17 for spectroscopic and photoelectric conversion. The near-infrared light source 19 is fixed at the bottom of the optical probe.
优选，近红外光源19均匀分布于采集信号的传导光纤4的周围。Preferably, the near-infrared light sources 19 are uniformly distributed around the conducting optical fiber 4 for collecting signals.
优选，所述V型挡板3的下边缘低于光学探头的下端但是高于样品传送带16。Preferably, the lower edge of the V-shaped baffle 3 is lower than the lower end of the optical probe but higher than the sample conveyor belt 16 .
优选，所述检测和控制单元17包括：光谱仪8、近红外探测器9、电源10，所述传导光纤4连接到光谱仪8，光谱仪8与近红外探测器9连接，近红外探测器9与无线通讯模块连接，化肥样品产生的近红外光谱被传导光纤4收集，然后传输至检测和控制单元17的光谱仪8进行分光，然后被近红外探测器9进行光电转换，产生的信号经无线通讯模块无线传输至主服务器监控装置20进行建模和定量分析，电源10通过光源导线5给近红外光源19进行供电。Preferably, the detection and control unit 17 includes: a spectrometer 8, a near-infrared detector 9, a power supply 10, the conductive optical fiber 4 is connected to the spectrometer 8, the spectrometer 8 is connected to the near-infrared detector 9, and the near-infrared detector 9 is connected to the wireless The communication module is connected, and the near-infrared spectrum generated by the fertilizer sample is collected by the conductive optical fiber 4, and then transmitted to the spectrometer 8 of the detection and control unit 17 for light splitting, and then photoelectrically converted by the near-infrared detector 9, and the generated signal is wirelessly transmitted by the wireless communication module. The data is transmitted to the main server monitoring device 20 for modeling and quantitative analysis, and the power supply 10 supplies power to the near-infrared light source 19 through the light source wire 5 .
优选，该检测和控制单元17还包括安装在检测和控制单元17机箱中的温度控制器13，温度控制器13控制检测和控制单元17机箱中的温度。Preferably, the detection and control unit 17 further includes a temperature controller 13 installed in the casing of the detection and control unit 17 , and the temperature controller 13 controls the temperature in the casing of the detection and control unit 17 .
优选，所述检测和控制单元17内设置空气泵11，空气泵11连接空气传输管12，空气传输管12依次经过每一个光学探头的内部，在每一个光学探头的入口和出口的空气传输管12上分别设置有气流入口控制阀6和气流出口控制阀7，气体从气流入口控制阀6进入光学探头，然后从一个光学探头传到另一个光学探头，最后从气流出口控制阀7流出。Preferably, an air pump 11 is arranged in the detection and control unit 17, and the air pump 11 is connected to the air transmission pipe 12, and the air transmission pipe 12 passes through the inside of each optical probe in turn, and the air transmission pipe at the entrance and exit of each optical probe 12 is respectively provided with an air inlet control valve 6 and an air outlet control valve 7, the gas enters the optical probe from the air inlet control valve 6, then passes from one optical probe to another optical probe, and finally flows out from the air outlet control valve 7.
优选，采用多个光学探头时，所述的传导光纤4为一分多光纤，多束光纤采集到的光谱信号耦合到同一束光纤中，然后传送至检测和控制单元17。Preferably, when multiple optical probes are used, the guide fiber 4 is a multi-fiber, and the spectral signals collected by the multiple optical fibers are coupled into the same optical fiber, and then transmitted to the detection and control unit 17 .
本发明与现有技术相比，有以下优点：Compared with the prior art, the present invention has the following advantages:
(1)该系统可以对传送带上的化肥样品进行精确的在线检测，具有高速、无损、无污染、便于操作的优点；(1) The system can accurately detect the fertilizer samples on the conveyor belt on-line, and has the advantages of high speed, no damage, no pollution, and easy operation;
(2)由于现场收集到的光谱数据是无线传输给主服务器监控装置(20)进行建模和定量分析的，因此可以简化化肥生产现场的繁琐布线，便于用户远程实现对化肥生产现场化肥质量的检测。(2) Since the spectral data collected on site is wirelessly transmitted to the main server monitoring device (20) for modeling and quantitative analysis, it can simplify the cumbersome wiring of the fertilizer production site, and facilitate the remote realization of the fertilizer quality monitoring of the fertilizer production site detection.
【附图说明】【Description of drawings】
图1是本发明的一种化肥质量在线检测系统第一优选实施例的整体结构原理图；Fig. 1 is a schematic diagram of the overall structure of the first preferred embodiment of an online chemical fertilizer quality detection system of the present invention;
图2是本发明中的光学探头的内部结构图。Fig. 2 is a diagram of the internal structure of the optical probe in the present invention.
【具体实施方式】【detailed description】
请参看图1，本实施例的一种化肥质量在线检测系统，包括位于化肥生产现场的样品传送带16、光学探头、检测和控制单元17、V型挡板3，化肥样品通过样品传送带16传送，光学探头安装在样品传送带16上方，V型挡板3装配在光学探头下部的前端，V型挡板3的夹角和光学探头的大小相匹配，化肥样品在样品传送带16上传输的过程中，V型挡板3和光学探头下侧插入化肥样品，检测和控制单元17内置无线通讯模块，光学探头将采集到的光谱传送到检测和控制单元17进行分光和光电转换之后产生的信号传输给无线通讯模块，所述化肥质量在线检测系统进一步包括主服务器监控装置20，无线通讯模块与主服务器监控装置20无线连接，主服务器监控装置20用于对从无线通讯模块接收到的信号进行建模和定量分析。优选，V型挡板3的下边缘低于光学探头的下端但是高于样品传送带16，从而避免对光学探头的破坏。Please refer to Fig. 1, a kind of chemical fertilizer quality on-line detection system of the present embodiment, comprises the sample conveyor belt 16, optical probe, detection and control unit 17, V-shaped baffle plate 3 that is positioned at the fertilizer production site, and fertilizer sample is transmitted by sample conveyor belt 16, The optical probe is installed above the sample conveyor belt 16, and the V-shaped baffle 3 is assembled on the front end of the lower part of the optical probe. The included angle of the V-shaped baffle 3 matches the size of the optical probe. The V-shaped baffle 3 and the lower side of the optical probe are inserted into the fertilizer sample. The detection and control unit 17 has a built-in wireless communication module. Communication module, the fertilizer quality on-line detection system further includes a main server monitoring device 20, the wireless communication module is wirelessly connected with the main server monitoring device 20, and the main server monitoring device 20 is used to model and process signals received from the wireless communication module quantitative analysis. Preferably, the lower edge of the V-shaped baffle 3 is lower than the lower end of the optical probe but higher than the sample conveyor belt 16, so as to avoid damage to the optical probe.
本实施例，由于生产现场的检测和控制单元17通过内置的无线通讯模块无线连接主服务器监控装置20实现对化肥质量光谱的建模和定量分析，方便用户远程对现场化肥质量进行检测分析。In this embodiment, since the detection and control unit 17 of the production site wirelessly connects to the main server monitoring device 20 through the built-in wireless communication module to realize modeling and quantitative analysis of the fertilizer quality spectrum, it is convenient for users to remotely detect and analyze the fertilizer quality on site.
请参见图1和图2，在本发明的一个优选实施例中，光学探头包括传导光纤4、位于光学探头底端的传导光纤接口18、近红外光源19，光学探头至少有1个，传导光纤4的一端固定安装在传导光纤接口18内，用来采集光信号，另一端连接到检测和控制单元17，将传导光纤4采集到的光谱传送到检测和控制单元17进行分光和光电转换，近红外光源19固定在光学探头的底端。本实施例相较于将检测和控制单元17设置在化肥生产现场之外，可以节省传导光线4的长度，降低系统安装的难度。本实施例中，进一步优选近红外光源19均匀分布于采集信号的传导光纤4的周围，实现对化肥质量的多点检测，提高检测的精确度。Please refer to Fig. 1 and Fig. 2, in a preferred embodiment of the present invention, optical probe comprises conduction fiber 4, the conduction fiber interface 18 that is positioned at the optical probe bottom, near-infrared light source 19, optical probe has at least 1, conduction fiber 4 One end of the guide fiber is fixedly installed in the interface 18 of the conduction fiber for collecting optical signals, and the other end is connected to the detection and control unit 17, and the spectrum collected by the conduction fiber 4 is sent to the detection and control unit 17 for spectroscopic and photoelectric conversion. The light source 19 is fixed on the bottom of the optical probe. Compared with setting the detection and control unit 17 outside the fertilizer production site, this embodiment can save the length of the transmission light 4 and reduce the difficulty of system installation. In this embodiment, it is further preferred that the near-infrared light source 19 is evenly distributed around the transmission optical fiber 4 for collecting signals, so as to realize multi-point detection of fertilizer quality and improve detection accuracy.
本实施例中，进一步优选采用多个光学探头时，所述的传导光纤4为一分多光纤，多束光纤采集到的光谱信号耦合到同一束光纤中，然后传送至检测和控制单元17。In this embodiment, when multiple optical probes are further preferably used, the guide optical fiber 4 is a multi-fiber, and the spectral signals collected by the multiple optical fibers are coupled into the same optical fiber, and then transmitted to the detection and control unit 17 .
在本发明的实施例，对于检测和控制单元17，优选包括：光谱仪8、近红外探测器9、电源10，所述传导光纤4连接到光谱仪8，光谱仪8与近红外探测器9连接，近红外探测器9与无线通讯模块连接，化肥样品产生的近红外光谱被传导光纤4收集，然后传输至检测和控制单元17的光谱仪8进行分光，然后被近红外探测器9进行光电转换，产生的信号经无线通讯模块无线传输至主服务器监控装置20进行建模和定量分析，电源10通过光源导线5给近红外光源19进行供电。进一步的，优选该检测和控制单元17还包括安装在检测和控制单元17机箱中的温度控制器13，温度控制器13控制检测和控制单元17机箱中的温度。In an embodiment of the present invention, for the detection and control unit 17, it preferably includes: a spectrometer 8, a near-infrared detector 9, a power supply 10, the conductive optical fiber 4 is connected to the spectrometer 8, the spectrometer 8 is connected to the near-infrared detector 9, and The infrared detector 9 is connected with the wireless communication module, and the near-infrared spectrum generated by the fertilizer sample is collected by the conduction optical fiber 4, and then transmitted to the spectrometer 8 of the detection and control unit 17 for light splitting, and then photoelectrically converted by the near-infrared detector 9 to generate The signal is wirelessly transmitted to the main server monitoring device 20 through the wireless communication module for modeling and quantitative analysis, and the power supply 10 supplies power to the near-infrared light source 19 through the light source wire 5 . Further, preferably, the detection and control unit 17 further includes a temperature controller 13 installed in the casing of the detection and control unit 17 , and the temperature controller 13 controls the temperature in the casing of the detection and control unit 17 .
为了消除外界温度以及内部温度的变化对光学探头测得的光谱信号的影响，优选，所述检测和控制单元17内设置空气泵11，空气泵11连接空气传输管12，空气传输管12依次经过每一个光学探头的内部，在每一个光学探头的入口和出口的空气传输管12上分别设置有气流入口控制阀6和气流出口控制阀7，气体从气流入口控制阀6进入光学探头，然后从一个光学探头传到另一个光学探头，最后从气流出口控制阀7流出。In order to eliminate the influence of changes in external temperature and internal temperature on the spectral signal measured by the optical probe, preferably, an air pump 11 is arranged in the detection and control unit 17, and the air pump 11 is connected to the air transmission pipe 12, and the air transmission pipe 12 passes through in turn The inside of each optical probe is respectively provided with an air inlet control valve 6 and an air outlet control valve 7 on the air transmission pipe 12 of the inlet and outlet of each optical probe, and the gas enters the optical probe from the air inlet control valve 6, and then flows from One optical probe passes to another optical probe, and finally flows out from the air outlet control valve 7.
本发明提供的一种化肥质量在线检测系统，可以对传送带上的化肥样品进行精确的在线检测，具有高速、无损、无污染、便于操作的优点；且由于现场收集到的光谱数据是无线传输给主服务器监控装置进行建模和定量分析的，因此可以简化化肥生产现场的繁琐布线，便于用户远程对化肥生产现场化肥质量进行检测分析。An on-line inspection system for fertilizer quality provided by the present invention can perform accurate on-line inspection on fertilizer samples on the conveyor belt, and has the advantages of high speed, no damage, no pollution, and easy operation; and because the spectral data collected on site is wirelessly transmitted to The main server monitoring device performs modeling and quantitative analysis, so it can simplify the cumbersome wiring at the fertilizer production site, and facilitate users to remotely detect and analyze the fertilizer quality at the fertilizer production site.
以上所述仅仅列出了本发明构思的实现形式，本发明的保护范围不应当被视为仅限于实施例所陈述的具体形式，凡在本发明的精神和原则之内，所作的任何修改、等同替换、改进等，均应包含在本发明的保护范围之内。The above only lists the implementation forms of the present invention concept, and the protection scope of the present invention should not be regarded as limited to the specific forms stated in the embodiments. Any modifications, Equivalent replacements, improvements, etc., should all be included within the protection scope of the present invention.
Claims (8)
- null1. a chemical fertilizer quality on-line detection system，The sample conveyer belt (16) on-the-spot including being positioned at chemical fertilizer production、Optic probe、Detection and control unit (17)、V-baffle (3)，Chemical fertilizer sample is transmitted by sample conveyer belt (16)，Optic probe is arranged on sample conveyer belt (16) top，V-baffle (3) is assemblied in the front end of optic probe bottom，The angle of V-baffle (3) and the size of optic probe match，Chemical fertilizer sample is in the process of the upper transmission of sample conveyer belt (16)，Chemical fertilizer sample is inserted on the downside of V-baffle (3) and optic probe，It is characterized in that: detection and control unit (17) built-in wireless communication module，The spectrum collected is sent to the signal produced after detection carries out light splitting and opto-electronic conversion with control unit (17) and is transferred to wireless communication module by optic probe，Described chemical fertilizer quality on-line detection system farther includes master server supervising device (20)，Wireless communication module and master server supervising device (20) wireless connections，Master server supervising device (20) is for being modeled and quantitative analysis the signal received from wireless communication module.
- 2. a kind of chemical fertilizer quality on-line detection system as claimed in claim 1, it is characterized in that: described optic probe includes conduction optical fiber (4), it is positioned at the conduction optical fiber interface (18) of optic probe bottom, near-infrared light source (19), described optic probe has at least 1, one end of conduction optical fiber (4) is fixedly mounted in conduction optical fiber interface (18), it is used for gathering optical signal, the other end is connected to detection and control unit (17), the spectrum that conduction optical fiber (4) collects is sent to detection and control unit (17) carries out light splitting and opto-electronic conversion, near-infrared light source (19) is fixed on the bottom of optic probe.
- 3. chemical fertilizer quality on-line detection system as claimed in claim 2 a kind of, it is characterised in that: near-infrared light source (19) be uniformly distributed in gather signal conduction optical fiber (4) around.
- 4. chemical fertilizer quality on-line detection system as claimed in claim 1 a kind of, it is characterised in that: the lower limb of described V-baffle (3) is lower than the lower end of optic probe but is above sample conveyer belt (16).
- null5. a kind of chemical fertilizer quality on-line detection system as claimed in claim 2，It is characterized in that: described detection and control unit (17) including: spectrogrph (8)、Near infrared detector (9)、Power supply (10)，Described conduction optical fiber (4) is connected to spectrogrph (8)，Spectrogrph (8) is connected with near infrared detector (9)，Near infrared detector (9) is connected with wireless communication module，The near infrared spectrum that chemical fertilizer sample produces is conducted optical fiber (4) to be collected，The spectrogrph (8) being then transmit to detection and control unit (17) carries out light splitting，Then opto-electronic conversion is carried out by near infrared detector (9)，The signal produced is wirelessly transmitted to master server supervising device (20) through wireless communication module and is modeled and quantitative analysis，Power supply (10) is powered to near-infrared light source (19) by light source conductor (5).
- 6. a kind of chemical fertilizer quality on-line detection system as claimed in claim 5, it is characterized in that: this detection and control unit (17) also include the temperature controller (13) being arranged in detection and control unit (17) cabinet, and temperature controller (13) controls the temperature in detection and control unit (17) cabinet.
- 7. a kind of chemical fertilizer quality on-line detection system as claimed in claim 5, it is characterized in that: described detection and air pump (11) is set in control unit (17), air pump (11) connects air delivery tube (12), air delivery tube (12) sequentially passes through the inside of each optic probe, the air delivery tube (12) of the entrance and exit of each optic probe is respectively arranged with air flow inlet and controls valve (6) and air stream outlet control valve (7), gas controls valve (6) from air flow inlet and enters optic probe, then another optic probe is passed to from an optic probe, last from air stream outlet control valve (7) outflow.
- 8. a kind of chemical fertilizer quality on-line detection system as claimed in claim 2, it is characterized in that: when adopting multiple optic probe, described conduction optical fiber (4) is optical fiber more than one point, the spectral signal that multiple beams of optical fiber collects is coupled to, in a branch of optical fiber, then passing to detection and control unit (17).
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