With the development of information technology and computer network technology, the Internet of Things has entered various fields of agricultural production. The International Telecommunication Union believes that the Internet of Things connects any object with the Internet through information sensors such as smart sensors, radio frequency identification (RFID) devices and global positioning system (GPS) in accordance with agreed protocols for information exchange and communication, In order to achieve a smart identification, positioning, tracking, monitoring and management of a network. In recent years, with the increasing demand of modern agricultural automation and the development of information technology, the agricultural Internet of Things has made important progress in the fields of physical perception, data transmission, intelligent processing and application services.

In recent years, the world's agricultural Internet of Things technology continues to evolve and great progress has been made in the field of agricultural Internet of Things sensing technology, data transmission technology and intelligent processing technology

First, great progress has been made in the agricultural Internet of Things sensing technology

With the rapid development of sensing technology, digital technology and internet technology, new sensors adopting new materials, new mechanisms and new technologies are emerging constantly, realizing high sensitivity, high adaptability and high reliability, , Modular, intelligent, integrated, network-oriented development. The developed countries such as the United States, Germany, Japan and other developed countries are in a leading position in the field of sensor technology and manufacturing technology. From the past two years, the products exhibited by international industrial exhibitions and the technological development status of internationally renowned manufacturers show that the development trend of sensor technology is: digital compensation technology, network technology, intelligent technology and multi-functional compound technology. At the same time more stringent technical parameters, manufacturing processes more sophisticated, more perfect compensation process The appearance of the more beautiful quality.

From the perspective of the overall development of the international sensor technology, there are mainly the following trends:

One is the direction of its own change: miniaturization, intelligence and mobility;

Second, the use of new principles, new structures, new materials, in order to achieve the micropower, low cost, high reliability and other parameters to enhance;

Third, research and development of higher technology and innovative products, and emphasis on industrial technologies, such as earthquakes, hurricanes and other natural disaster prediction and monitoring sensor products.

(A) The miniaturization of agricultural sensors to achieve results

Nanosensors are expected to contribute to the food issue. Hillary Clinton, minister for environment, food and rural affairs, said that nanotechnology will have real potential to help meet the rapidly growing population demand for world food, which will not only greatly extend the shelf life of packaged foods, but also promote the Grow. Numerous tests in the United States have also led to the development of nanosensors. The sensors in such implantable animals detect the disease before infecting the herd. New breakthroughs in nanotechnology at the nanometer level have helped to create plastic packages that protect food and beverages from lethal bacteria or prevent oxygen from entering the container. The technology will also be used to enrich the nutrition of foods and maintain the amount of vitamins in foods that normally drain over time. Farmers can also use this technology to ensure that they release their fertilizers slowly for the crop at the right time and are aggressively seeking access to fertilizers

The United States made a new type of biosensor. Researchers at the Purdue University and other agencies made a new type of biosensor that detects very low glucose concentrations in saliva and tears. The technology eliminates the need for overly complicated manufacturing steps, which can reduce sensor manufacturing costs and may help eliminate or reduce the chances of using acupuncture for diabetes testing. Related research papers published in the "Advanced Functional Materials" magazine. The new biosensor consists of three main parts: a nanosheet made of graphene, platinum nanoparticles and glucose oxidase. The nanosheets imitate the tiny rose petals each containing multiple stacked graphene layers. Petal edges are also hung with incomplete chemical bonds so platinum nanoparticles can be attached here. Nanosheets in combination with platinum nanoparticles can form electrodes, followed by attachment of glucose oxidase to platinum nanoparticles. Enzymes convert glucose to peroxide and produce a signal on the electrode. Often, complex bioprocessing steps are required to obtain a biosensor finished with nanostructures, including photolithography, chemical processing, etching, and the like. And the beauty of these nanosheet petals is that they can grow on either surface without going through these steps, making them ideal for commercialization. The detector detects glucose at a concentration of 0.3 micromolar and is more sensitive than other electrochemical biosensors based on graphene, carbon nanotubes, or metal nanoparticles. This technology is expected to be widely used in the accurate detection of agricultural products glucose content.

(B) a breakthrough in intelligent agricultural sensor

Germany has developed instruments that smell fruit ripeness. Germany Fraunhofer Institute of Molecular Biology and Applied Ecology published a communique recently said that the Institute developed a special instrument whose core technology is to use metal oxide gas sensor to detect the special smell of fruit released, and finally Analysis to determine the maturity of the fruit. The specific work process of this instrument is to use polymer separation column to be the smell of the fruit to be tested and then let the gas with the smell through the temperature of 300-400 ° C sensor so that the metal oxide inside and Odor reaction Finally, the instrument automatically reflects the status of the fruit maturity. Preliminary tests show that this instrument is as accurate as a dedicated measuring instrument in a food laboratory. With this instrument, the bulk fruit wholesaler will be able to efficiently monitor the maturity of the planned sale of fruit directly in the warehouse.

Scientists at the University of Colorado recently developed smart microchips that can be placed on plant leaves. The smart chip resembles a clip-on earring, thinner than a stamp, affixed to the leaves of a plant. When plants need water, Mobile phone to send information needs. Using this method saves water, saves time and money, reduces the amount of water required for plant growth by 10% to 40%, and saves farmers several thousand dollars annually.

(C) Agricultural sensors can be moved into the mainstream direction

South Korean researchers announced a few days ago that they have invented a small biochip sensor that can quickly and accurately detect food and environmental pollution. Biochip sensors developed by researchers at the Korea Institute of Bioscience and Biotechnology use surface plasmon resonance to detect the structure of the molecular layer by receiving laser resonance signals reflected by the surface of an object being scanned to detect the DNA and protein of the object Whether it is polluted. This portable new device can be "real-time inspection", greatly improving the detection efficiency.

US experts study RFID and sensors to ensure the safety of agricultural food. Supported by the U.S. Department of Agriculture's National Food Security Funding Program, research teams from several universities in the United States expect to spend three years investigating the use of sensors to track the temperature and humidity of leafy green vegetables in the supply chain. Researchers will install sensors in agricultural containers in transport trucks to monitor temperature and humidity levels, the timing of fluctuations and how they may affect the production of E. coli or other pathogens on retail agricultural products. The researchers also hope to use the findings to provide training to packaging and distribution professionals to prevent food-borne pathogens by monitoring fresh food during transport and distribution.

From the perspective of the maturity of foreign sensor industrialization point of view, the main development of the following main features:

First, attention should be paid to the research on basic technologies, basic processes and common key technologies to ensure that the basic technologies and basic processes are at the leading position in the world.

Second, pay attention to manufacturing technology and equipment research and application. Equipped with excellent technology and equipment and testing equipment, in particular, intelligent process equipment to ensure the advanced technology and equipment.

Third, attach importance to the development of new products and products with independent intellectual property rights and enhance their core competitiveness. Targeting the global sensor technology and market trends and strategic frontiers to determine the research topics and product development.

Fourth, attach importance to the reliability of the sensor design, control and management, strict design compliance control and process reliability control, effectively improve product yield.

Fifth, focus on market competition, strengthen market research and analysis, rapid response to the market. Pay attention to the market competition in the personalized service features, responsive, quality, cost-effective.

Sixth, pay attention to product technical standards Familiar with the system information collection process, the integrity of the interface standards, integrity, coordination.

Because of this, a wide range of foreign sensor products, complete specifications, integrated and modular structure of strong performance, product quality and appearance both. With strong market support and service capability, we are constantly pushing new technologies and market competition to new heights, enabling similar products to compete not only with the indicators of sensitivity, accuracy, stability and reliability, but also with new material applications, manufacturing Technology and industrialization technology level, also formed a clear competitive advantage.

Second, the rapid development of agricultural Internet of Things data transmission technology

As a miniaturized embedded system, WSN has the dual functions of end node and routing: on the one hand, data collection and processing are realized; on the other hand, data fusion is transmitted to routing nodes via multiple routes and finally via the Internet Or other communication network to the viewer.

(A) Sensing, computing, communication integrated data transmission technology has been developed

Internationally, WSN nodes have been developed by several generations of COTS, weC, Rene, Dot, Mica, and Spec. At present, all Specs are integrated into CMOS chips to realize sensing, computing and communication functions. The Mica series node and Telo node are the most widely used. For example, the living habits and habitat of the big duck island, the monitoring of the microclimate environment of the red cedar tree adopt the Mica series nodes for collecting temperature, humidity, barometric pressure, sound And light and other information. At present, many research institutes use these two kinds of nodes as the hardware platform in the construction of low-bandwidth data acquisition applications.

University of California, Berkeley, a number of nodes arranged in a pine on the observation of the growth of Korean pine. Intel set up the world's first wireless vineyard in Oregon with a wireless sensor network located in the vineyard to test the soil temperature every minute, monitor the temperature in the nodal area or the amount of noxious material in the area, and ensure that the grapes grow healthy. Raul Morais et al. Have developed a ZigBee multi-powered wireless device to assist in the prediction of grape powdery mildew in vineyards. The system uses JN5121 as a communication module. In order to solve the energy consumption problem of sensor node, wind power, water energy and solar power supply are used in the system, but the node is too bulky to be installed. Lopez Riquelme et al. Conducted WSN deployment trials in the ecological horticultural business in Murcia, a semi-arid region of southern Spain, using three different types of node deployment programs for monitoring soil quality in eco-parks (including Water, Temperature, Crop Growth Environment (Air Temperature and Humidity), Water Quality (Salinity, Temperature) NingWang et al. Summarized the application of wireless sensor networks in precision agriculture in four aspects: spatial data collection, precision irrigation , Variable jobs, providing data to farmers.

(B) the realization of short-range wireless sensor networks routing algorithm

Wireless sensor network nodes generally by the processor, wireless transmission, sensors and power modules and other units. In terms of node chips, foreign products generally adopt a general-purpose ultra-large-scale integrated circuit system-on-chip (SoC), which forms the base layer support platform of the wireless sensor network. And Berkeley2003 released Spec sensor network node, the 8 processor, 900MHZ wireless transmitter, 3kRAM, communications, 8-bit ADC, temperature sensor and TinyOS operating system are all integrated in a 2mm × 2.5mm CMOS chip , To achieve the sensing, computing and communication functions.

ZigBee technology is a close-range, low complexity, low power consumption, low rate, low-cost two-way wireless communication technology. Mainly used for short distance, low power consumption and transmission rate is not high between various electronic devices for data transmission and the typical cyclical data, intermittent data and low reaction time data transmission applications.

Wireless sensor network technology combines sensor technology, MEMS technology, wireless communication technology, embedded computing technology and distributed information processing technology in one, with the characteristics of easy layout, flexible communication, low power consumption, low cost and other applications In the field of agricultural environmental monitoring has become one of the hot spots in wireless sensor networks.

In recent years, due to the development of technologies such as embedded computing technology, network communication technology and node energy saving, a historic change has also been brought to the wireless sensor network technology. In 1993, UCLA partnered with Rockwell Science Center to establish the "Inherited Wireless Network Sensor" (WINS) initiative whose primary goal is to add low to existing wireless sensor nodes Power electronics and MEMS technology have greatly improved the measurement accuracy of wireless sensor nodes while greatly reducing the energy consumption of wireless sensor nodes. In 1999, Jane M Loeb at the University of California, Berkeley, started the PicoRadio program to support "Ad hoc (point-to-point) forms of self-contained, mid-scale, low-cost, low-power sensing and monitoring nodes Wireless network "needs. The United States, Japan, Israel and other countries have been committed to making the transmission node integration and miniaturization, dynamic self-organization of the network, the distributed processing and management of information.

Third, agricultural Internet of Things intelligent processing technology made important progress

Agricultural Internet of Things intelligent processing technology for data preprocessing, storage, indexing, query, intelligent analysis and calculation. The main technologies include big data processing technology, data mining technology, forecasting and warning technology, artificial intelligence technology. In the world has been widely studied.

(A) real-time streaming data processing technology in the agricultural Internet of things has been widely used

Due to the widespread use of new IoT devices such as sensors, the rapid explosion of big data is projected by IDC (International Data Corporation) to reach 35 zB by 2020 globally. All countries in the world are actively engaged in the trend of big data. In March 2012, the United States released the "Big Data R & D Program" to promote research and innovation based on big data. Subsequently, Britain, Japan, Germany, Canada and other countries followed the example of launching a strategic study on big data applications . With the rapid explosion of a large number of unstructured and semi-structured data such as meteorological disasters, biological genes and resources and the environment, agriculture has also entered the era of big data. However, it is very hard to achieve the traditional storage and calculation from huge and diverse agricultural data, so it is very difficult to process and process big data from the processing of structured data to the processing of unstructured data. Data sets grow data sets from iterations, from batch to stream processing, from centralized to distributed, and from confirmatory to exploratory.

Because IoT sensors have the characteristics of hourly monitoring, each sensor will generate a large amount of data, so the application of IoT technology will produce a large amount of uninterrupted data flow. Effective and efficient management of these data has become an important prerequisite for subsequent data intelligence analysis and data application services. In big data processing technology, the United States has conducted a great deal of research. The U.S. government has made big data processing technology as a strategic technology that has made great strides in researching big data processing technologies in combination with the power of governments, research institutions and non-governmental organizations. The company has developed a big data platform that enables efficient data management, efficient integration and management of different data types, data flow calculations, data warehousing and information integration in big data environments. Its Infosphere Stream system supports continuous analysis of mass flow data to help users quickly access, analyze and correlate data from multiple real-time sources for fast response to data processing, integrating applications and supporting both structured and unstructured data sources; IBM Infosphere Warehouse provides a comprehensive data warehouse platform that supports real-time access to both structured and unstructured data.

Hy-pro Filter

Company Profile

Xinxiang Lifeierte Filter Co., Ltd is specialized in manufacturing filter elements, filter housing, filter equipment, testing equipment and hydraulic parts.She is located in Xinxiang that is the center of filtration in China.Xinxiang Lifeierte Filter Co., Ltd integrates with oil filtration, water treatment and air purification to provide the society with more professional service and meet customers` demands. What`s more, Lifeierte has top-notch R&D team, professional technical team, effective production network and perfect after-sales service system. The corporate philosophy of Lifeierte is [to purify environment, to serve society, to manage faithfully,and to pursue excellence". The company also established the comprehensive cooperative relations with some famous design & research institutions and colleges. The quality of the product has reached the international advanced level and makes us achieve remarkable economic benefits.

Products

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testing standards are satisfied by the products

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