Ultrasonic Sensors for Wireless Sensor Network Applications

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Ultrasonic Sensors for Wireless Sensor Network Applications [Copy link]

As technology advances, the use of wireless networks is growing in popularity. Wireless sensor networks (WSN) allow data to be collected remotely for review. We have already written about the Internet of Things and it's real world applications. In this article, we will take a closer look at WSN technology, how it relates to the Internet of Things, industries that benefit from wireless sensor networks, and how ultrasonic sensorscan fit into your wireless sensor network.

What is Wireless Sensor Network (WSN) technology? Wireless Sensor Networks,WSN is a distributed sensor network, which is composed of a large number of cheap micro sensor nodes deployed in the monitoring area. It forms a multi-hop self-organizing network system through wireless communication. Its purpose is to cooperatively sense, collect and process the information of the sensed objects in the network coverage area and send it to the observer. Sensors, sensed objects and observers constitute the three elements of wireless sensor networks. Its ends are sensors that can sense and check the outside world.

What do wireless sensor networks monitor?

Temperature, sound, pressure, or more. What is the difference between wireless sensor networks (WSN) and the Internet of Things? Wireless sensor networks sound very similar to the Internet of Things in applications. Wireless sensor networks are part of the Internet of Things field. To make a vivid metaphor, sensors in the Internet of Things are likened to the senses of the Internet of Things such as hands, fingers, eyes and ears. Sensors need to be connected to the Internet of Things platform in order to communicate the information they collect. Wireless sensor networks (WSN) are as a bridge to the digital world. Through cloud services or databases, the Internet of Things acts as a hub that uses all the collected data to develop meaningful interpretations.

Industries using wireless sensor networks and Internet of Things

Smart cities

Wireless sensor networks enable sensors to form local Internet of Things, exchange and obtain information in real time, and eventually converge to the Internet of Things, forming an important source of information and basic applications for the Internet of Things. Smart city is to use information and communication technology to sense, analyze and integrate key information of the core systems of urban operation, so as to make intelligent responses 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 urban parking spaces; waste management allows monitoring of garbage levels in containers to optimize routes. Save labor costs and polluting car emissions; monitor traffic congestion to optimize walking and driving routes; smart lighting can achieve adaptive lighting in street lights according to weather conditions. According to the development status of smart cities in my country, Gongcai.com provides two corresponding ultrasonic sensor solutions.

Ultrasonic sensor - MB1004 is a proximity sensor with high and low level alarm signal output, with a measurable range of up to 213cm, suitable for pedestrian detection, parking detection, etc. When a pedestrian enters the detection range, the MB1004 will output an alarm signal from low level to high level. It also has the function of outputting the specific distance of the target, and outputs the distance data through RS232. MB1004 is a very low-cost ultrasonic sensor for human detection.

Trash Can Ultrasonic Sensor - MB7139 is a weather-resistant ultrasonic sensor for detecting the capacity of trash cans. This sensor is the best recommended sensor for our testing in trash cans. It has high output acoustic power and continuously variable gain, can automatically calibrate in real time, and has noise suppression algorithms, which can effectively achieve noise-free distance readings.

Smart metering

Wireless sensors are used to collect the temperature and current of the oil well monitoring motor in the monitoring area, the liquid level parameters of the oil storage tank and the start and stop operation of the oil well. If wired transmission is adopted, there is a great difficulty in wiring. Therefore, the wireless sensor network will access the monitored data to the Internet through the GPRS network. The monitoring station can understand the monitoring situation of the oil station by browsing the web page. In order to better measure the tank liquid level, the level ultrasonic sensor provided by Gongcai.com - MB7389 is specifically designed to measure oil, water. This sensor is a cost-effective solution. Accurate range-finding, low voltage operation, space saving, low cost, and IP67 weather resistance. The HRXL-MAXSONAR-WR sensor line provides high accuracy high resolution ultrasonic proximity detection and ranging in the air. This sensor line features 1mm resolution, target size, and operating voltage compensation. For increased accuracy and better rejection of external noise sources, internal velocity temperature compensation as well as optional external temperature compensation. The HRXL-MAXSONAR-WR/WRC model is available in 5m or 10m models. This ultrasonic sensor can detect objects from 1mm to 30cm objects. The maximum range. Objects over 30cm are typically reported as 30cm. The interface output formats are pulse width, analog voltage, and digital serial in RS232 (MB7360 series) or TTL (MB7380 series). Factory calibration is standard.

Smart Agriculture

WSN is particularly suitable for the following production and scientific research. For example, the temperature, humidity, and light monitoring of greenhouse planting rooms and soil, the analysis and measurement of the growth laws of precious economic crops, the high-quality breeding and production of grapes, etc., can bring great help to rural development and farmers' income increase. Using WSN to build an automatic agricultural environment monitoring system, using a set of network equipment to complete the data collection and environmental control of wind, light, water, electricity, heat and pesticides, etc., can effectively improve the degree of agricultural intensive production and improve the scientific nature of agricultural production and planting. Sensor uses include: Agricultural drones (mapping fields, planting, crop monitoring, irrigation) Agricultural robots (tendencies for planting, weeding, fertilizing and harvesting.) Monitoring livestock (health and well-being, feeding)

UAV Ultrasonic SensorMB7052 is an ultrasonic sensor with IP67 protection safety level, which can protect against dust inhalation and can be immersed for a short time. It is encapsulated with PVC material and has certain corrosion resistance. In outdoor environment with clutter interference, it can well remove clutter and detect the distance information of the largest target. The resolution of the sensor can reach 1cm and the measurable distance is up to 7.65 meters. Therefore, it is a low-power product suitable for outdoor environment, such as UAV system. At the same time, it has also been widely used in the field of battery-powered IoT smart devices.

With the continuous development of wireless network, wireless sensor network and IoT have the potential to change more industries, manufacturing, agriculture, supply chain and infrastructure have been transformed and strengthened. For this reason, people are paying more and more attention to this problem to make it a more adaptable solution.

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