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Ultrasonic sensor for wireless sensor network applications
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Time：2018-07-20 17:18:41
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What is Wireless Sensor Network (WSN) technology? Wireless Sensor Networks (WSN) is a distributed sensing network consisting of a large number of inexpensive micro-sensor nodes deployed in the monitoring area and a multi-hop self-organizing network system formed by wireless communication. The goal is to collaboratively perceive, collect, and process information about the perceived objects in the network coverage area and send them to the observer. Sensors, sensing objects, and observers form the three elements of a wireless sensor network. Its tip is a sensor What is monitored by the wireless sensor network? Temperature, sound, pressure, or more. What is the difference between Wireless Sensor Network (WSN) and the Internet of Things? Wireless sensor networks sound very similar to the Internet of Things in the application. Wireless sensor networks are part of the Internet of Things. As an image metaphor, sensors in the Internet of Things are likened to the senses of the hands, fingers, eyes and ears of the Internet of Things. Sensors need to be connected to the IoT platform to communicate the information they collect. Wireless Sensor Networks (WSN) is a bridge for the digital world. Through cloud services or databases, the Internet of Things serves as a hub for using all collected data to develop meaningful interpretations. Industry using wireless sensor networks and the Internet of Things Smart City Wireless sensor networks enable sensors to form local IoT, exchange and obtain information in real time, and ultimately aggregate into the Internet of Things to form an important source of information and basic applications for the Internet of Things. Smart city is the use of information and communication technology to sense, analyze and integrate the key information of the core system of urban operation, so as to respond intelligently to various needs including people's livelihood, environmental protection, public safety, urban services, industrial and commercial activities. . For example, smart parking is a solution for monitoring city parking spaces; waste management allows monitoring of the level of garbage in the container to optimize the route. Save labor costs and pollute car emissions; monitor traffic congestion to optimize walking and driving routes; intelligent lighting can achieve adaptive lighting in street lights depending on weather conditions. According to the development status of China's smart cities, Gongyi.com provides two corresponding ultrasonic sensor solutions. Ultrasonic Sensor - MB1004 is a proximity sensor with high and low level alarm signal output. The measuring range is up to 213cm, which is suitable for pedestrian detection and parking detection. When the pedestrian enters the detection range, MB1004 will output an alarm signal that changes from low level to high level. At the same time, it also has the function of outputting the target specific distance, and output distance data through RS232. The MB1004 is a very low cost human body detection ultrasonic sensor. Trash Ultrasonic Sensor - The MB7139 is an anti-weather ultrasonic sensor for detecting the capacity of a trash can. This sensor is the best recommended sensor for testing in the trash can. High output sound power and continuously variable gain, real-time automatic calibration, noise suppression algorithm, etc., can effectively achieve noise-free distance reading. Smart metering The wireless sensor is used to collect the temperature of the oil well in the monitoring area, the current, the liquid level parameter of the oil storage tank and the start and stop operation of the oil well. If the transmission is wired, there is difficulty in wiring, so the wireless sensor network will monitor The data to the Internet is connected to the Internet through the GPRS network. The monitoring station can know the monitoring situation of the oil station by means of web browsing. In order to better measure the liquid level ultrasonic sensor provided by the fuel tank level network - MB7389 is dedicated to Measure oil, water. This sensor is a cost effective solution. Accuracy range - lookup, low voltage operation, space saving, low cost, and IP67 weather forecast resistance. The hrxl-maxsonar-wr sensor line provides high-precision, high-resolution ultrasound for near-air detection and ranging. The sensor line features 1 mm resolution, target size and operating voltage compensation. To improve accuracy, better reject external noise sources, temperature compensation for internal speeds, and optional external temperature compensation. The hrxl-maxsonar-wr/wrc model is available in models of 5 or 10 meters. This ultrasonic sensor IGBT Intelligent agriculture WSN is particularly suitable for production and scientific research in the following areas. For example, greenhouse temperature and humidity, light monitoring, analysis and measurement of precious economic crop growth, high-quality grape breeding and production, etc., can greatly help rural development and farmers' income. Adopt WSN to build an automatic monitoring system for agricultural environment, and use a set of network equipment to complete data collection and environmental control of wind, light, water, electricity, heat and pesticides, which can effectively improve the degree of agricultural intensive production and improve the scientific nature of agricultural production and planting. . Sensor usage includes: Agricultural drone (drawing field, planting, crop monitoring, irrigation) Agricultural robots (prone to planting, weeding, fertilizing and harvesting.) Monitoring livestock (health and well-being, feeding) With the continuous development of wireless network networks, wireless sensor networks and the Internet of Things are likely to change more industries, manufacturing, agriculture, supply chains and infrastructure have been transformed and strengthened. To this end, people are paying more and more attention to this problem, making it a more adaptable solution.
