{"id":939,"date":"2024-06-07T03:16:21","date_gmt":"2024-06-07T03:16:21","guid":{"rendered":"http:\/\/www.xingshitu.com\/?page_id=939"},"modified":"2025-06-03T09:08:29","modified_gmt":"2025-06-03T09:08:29","slug":"xst-photonet-ndvi-%e5%85%89%e8%b0%b1%e7%89%a9%e5%80%99%e7%9b%91%e6%b5%8b%e7%b3%bb%e7%bb%9f","status":"publish","type":"page","link":"http:\/\/www.xingshitu.com\/en\/xst-photonet-ndvi-%e5%85%89%e8%b0%b1%e7%89%a9%e5%80%99%e7%9b%91%e6%b5%8b%e7%b3%bb%e7%bb%9f\/","title":{"rendered":"XST-PhotoNet-NDVI Spectral Climate Monitoring System"},"content":{"rendered":"

XST-PhotoNet-NDVI Spectral Climate Monitoring System<\/strong><\/p>\n\n\n

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Multiple band spectra available<\/strong>option<\/strong> Multiple vegetation indices can be customized<\/strong><\/span><\/p>\n\n\n\n

Long-term operation in the field with automatic index calculation<\/strong>,<\/strong>real time output<\/strong><\/strong><\/span><\/p>\n\n\n\n

5 megapixels, optional<\/strong>make up (a prescription)<\/strong>8 megapixels<\/strong>camera shot (in a movie etc)<\/strong><\/strong><\/span><\/p>\n\n\n\n

be in favor of<\/strong>20x optical zoom, full angle<\/strong>controllable<\/strong>spruce<\/strong><\/strong><\/span><\/p>\n\n\n\n

Group, individual and local free acquisition, customized preset points<\/strong><\/strong><\/span><\/p>\n\n\n\n

Easy field installation and software configuration<\/strong>,<\/strong>Commissioning is fully remote<\/strong><\/span><\/p>\n\n\n\n

Product Overview<\/strong><\/strong><\/p>\n\n\n\n

The spectral climate monitoring system independently developed by Beijing StarView Technology Co., Ltd. is mainly used for long-term positioning and monitoring of plant climate growth. The equipment is based on accurate multi-spectral imaging technology and built-in multiple climate and vegetation index algorithms, realizing online automated monitoring of plant climate.<\/p>\n\n\n\n

It provides professional solutions for scientific research work in many fields, such as plant growth monitoring in agriculture, forestry and grassland, ecological environment research, and remote sensing ground verification.<\/p>\n\n\n\n

Application Cases<\/strong><\/p>\n\n\n\n

The case for forest vegetation phenology \u25ba<\/strong><\/p>\n\n\n\n

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Climatic observation images and NDVI vegetation index change curve of Wanglang Mountain Ecological Remote Sensing Integrated Observation Experimental Station in 2024<\/p>\n\n\n\n

From the curve image, it can be seen that the change of NDVI value is the real reflection of the vegetation growth condition in the corresponding image.<\/p>\n\n\n

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April 17, 2024 Little green vegetation: greening period | May 17, 2024 New leaf growth on vegetation: green maturity transition period<\/p>\n\n\n

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July 23, 2024: Seasonal Flourishing | December 21, 2024: Dormant Regulating Period<\/p>\n\n\n\n

The case of grass weather observation \u25ba<\/strong><\/p>\n\n\n\n

Data from late May 2024-November 15, 2024 were analyzed at the Hulunbeier Te Naihe Grassland Experimental Station facility of China Agricultural University.<\/p>\n\n\n\n

One of the first snowfalls of the winter was on October 21, which was clearly expressed in the NDVI fitting curve, i.e., the NDVI value suddenly dropped to negative, and then with the melting of the snow (basically melted on October 26), the NDVI was back to about 0 again.<\/p>\n\n\n

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Inflection points were extracted from the trend of daily NDVI data analysis curves during the growing season to obtain the time points of the phenological period:<\/p>\n\n\n\n

Growth period:<\/strong>Since the May observation data, through June 18th.<\/p>\n\n\n\n

Reproductive growth period (flowering, fruiting)<\/strong>: June 18-September 11<\/p>\n\n\n\n

withering period<\/strong>::<\/strong>September 11-October 20<\/p>\n\n\n\n

Cases of climate observation in agricultural fields \u25ba<\/strong><\/p>\n\n\n\n

Beijing Normal University (BNU) has realized high-precision real-time monitoring of maize phenological period (BBCH) by using a spectral climate camera to acquire spectral and texture information from fused RGB and near-infrared images. StarView can provide customized services of machine recognition function for the demand of automatic climate period recognition of flowers and fruits of specific vegetation.<\/p>\n\n\n

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Spectral response curve of a spectral weathering camera \u25ba<\/strong><\/p>\n\n\n

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Case Documentation:<\/strong><\/strong><\/p>\n\n\n\n

Real-time monitoring of maize phenology using ground camera fusion information; State Key Laboratory of Land Surface Processes and Resource Ecology, Zhao Qi et al.<\/p>\n\n\n\n

A Comparative Study of the Effects of Vertical and Inclined Camera Observations on the Validation of Remotely Sensed Climate Parameters; Beijing Normal University, Lina Xu et al.<\/p>\n\n\n\n

Technical Parameters<\/p>\n\n\n\n

Selectable bands<\/strong><\/font><\/span><\/span><\/p><\/td>

wideband<\/font><\/span><\/o:p><\/span><\/p><\/td>

Narrow band and peak wavelength<\/font><\/span><\/o:p><\/span><\/p><\/td><\/tr>

R<\/font><\/span>GB<\/span><\/o:p><\/span><\/p>

True Color Photo<\/font><\/span><\/o:p><\/span><\/p><\/td>

near infrared (NIR)<\/font><\/span><\/o:p><\/span><\/p><\/td>

bonus<\/font><\/span><\/o:p><\/span><\/p><\/td>

Green (optional)<\/font><\/span><\/o:p><\/span><\/p><\/td><\/tr>

850\u00b110nm<\/font><\/span><\/o:p><\/span><\/p><\/td>

650\u00b110nm<\/font><\/span><\/o:p><\/span><\/p><\/td>

550<\/span>\u00b110nm<\/font><\/span><\/o:p><\/span><\/p><\/td><\/tr>

Sensor type<\/strong><\/font><\/span><\/span><\/p><\/td>

CMOS lenses.<\/font><\/span>5<\/span>0.00 megapixels<\/font><\/span><\/o:p><\/span><\/p><\/td><\/tr>

Optional zoom<\/strong><\/font><\/span><\/span><\/p><\/td>

20x optical zoom: focal length<\/font><\/span>4.<\/font><\/span>7<\/span>mm to 9<\/font><\/span>3.<\/span>6mm, max. field of view<\/font><\/span>48<\/span>.<\/font><\/span>1<\/span>\u00b0 (level)3<\/font><\/span>6<\/span>.<\/font><\/span>2<\/span>\u00b0 (vertical)<\/font><\/span><\/o:p><\/span><\/p>

Fixed-focus version of the field of view:<\/font><\/span>horizontal angle<\/font>74.6\u00b0; vertical angle: 58.4\u00b0<\/span><\/o:p><\/span><\/p><\/td><\/tr>

Optional Head Increase<\/strong><\/font><\/span><\/span><\/p><\/td>

Settable angle range: Horizontal<\/font><\/span>0\u00b0<\/span>~<\/font><\/span> <\/span>350<\/span> <\/span><\/span>\u00b0, vertical 0\u00b0<\/font><\/span>~<\/font><\/span> <\/span>90\u00b0<\/span><\/o:p><\/span><\/p><\/td><\/tr>

Optional add-ons<\/strong><\/font><\/span><\/span><\/p><\/td>

Optional addition of laser ranging, air temperature and humidity and 3D inclination data for simultaneous measurements<\/font><\/span><\/o:p><\/span><\/p><\/td><\/tr>

image acquisition<\/strong><\/font><\/span><\/span><\/p><\/td>

Frequency of automatic image acquisition<\/font><\/span>10<\/a><\/span>Minutes\uff5e<\/font><\/span>24<\/span>hourly<\/font><\/span><\/o:p><\/span><\/p><\/td><\/tr>

data output<\/strong><\/font><\/span><\/span><\/p><\/td>

imagery<\/font><\/span><\/o:p><\/span><\/p><\/td>

RGB images, narrow band spectra<\/font><\/span>seek<\/font><\/span>cap (a poem)<\/font><\/span>NDVI<\/span>composite image<\/font><\/span><\/o:p><\/span><\/p><\/td><\/tr>

digital<\/font><\/span><\/o:p><\/span><\/p><\/td>

NDVI, GCC, RCC, BCC, GVI, with optional output of EVI, GNDVI and NDWI; support output of FVC vegetation coverage (the angle needs to be shot vertically up and down) can be added according to the selected camera band.<\/span><\/td><\/tr>

power supply (of an appliance etc)<\/strong><\/font><\/span><\/span><\/p><\/td>

routine<\/font>12V<\/font><\/span>\/<\/span>100W<\/font><\/span>Solar powered system, optional<\/font>2<\/font><\/span>20<\/span>V AC power supply<\/font><\/span><\/o:p><\/span><\/p><\/td><\/tr>

interior<\/font> survive<\/font><\/strong><\/span><\/span><\/p><\/td>

6<\/font><\/a><\/span>4<\/span>G, supports expansion up to<\/font><\/span>256<\/span>G<\/font><\/span><\/o:p><\/span><\/p><\/td><\/tr>

wireless module<\/strong><\/font><\/span><\/span><\/p><\/td>

Built-in intelligent data collector in the support of traffic card hot-swapping, the<\/font>4<\/font><\/span>G<\/span>China Network Communications (CNC) Group Corporation (one of China's large telephone companies)<\/font><\/span><\/o:p><\/span><\/p><\/td><\/tr>

Self-contained G<\/font>PS<\/strong><\/span><\/span><\/p><\/td>

Outputs position information that can be used to calibrate the system time<\/font><\/span><\/o:p><\/span><\/p><\/td><\/tr>

working environment<\/strong><\/font><\/span><\/span><\/p><\/td>

-40\u00b0C to<\/font><\/span>6<\/span>0\u2103; 0\uff5e100% RH<\/font><\/span><\/o:p><\/span><\/p><\/td><\/tr><\/tbody><\/table><\/figure>","protected":false},"excerpt":{"rendered":"

XST-PhotoNet-NDVI \u5149\u8c31\u7269\u5019\u76d1\u6d4b\u7cfb\u7edf \u591a\u79cd\u6ce2\u6bb5\u5149\u8c31\u53ef\u9009\u62e9 \uff0c\u591a\u79cd\u690d\u88ab\u6307\u6570\u53ef\u5b9a\u5236 \u91ce\u5916\u957f\u671f\u8fd0\u884c\uff0c […]<\/p>\n","protected":false},"author":1,"featured_media":0,"parent":0,"menu_order":0,"comment_status":"closed","ping_status":"closed","template":"","meta":{"saved_in_kubio":true,"footnotes":""},"class_list":["post-939","page","type-page","status-publish","hentry"],"kubio_ai_page_context":{"short_desc":"","purpose":"general"},"_links":{"self":[{"href":"http:\/\/www.xingshitu.com\/en\/wp-json\/wp\/v2\/pages\/939","targetHints":{"allow":["GET"]}}],"collection":[{"href":"http:\/\/www.xingshitu.com\/en\/wp-json\/wp\/v2\/pages"}],"about":[{"href":"http:\/\/www.xingshitu.com\/en\/wp-json\/wp\/v2\/types\/page"}],"author":[{"embeddable":true,"href":"http:\/\/www.xingshitu.com\/en\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"http:\/\/www.xingshitu.com\/en\/wp-json\/wp\/v2\/comments?post=939"}],"version-history":[{"count":97,"href":"http:\/\/www.xingshitu.com\/en\/wp-json\/wp\/v2\/pages\/939\/revisions"}],"predecessor-version":[{"id":2341,"href":"http:\/\/www.xingshitu.com\/en\/wp-json\/wp\/v2\/pages\/939\/revisions\/2341"}],"wp:attachment":[{"href":"http:\/\/www.xingshitu.com\/en\/wp-json\/wp\/v2\/media?parent=939"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}