At present, in order to prevent the impact on urban residents' water use, our country does not allow domestic and production water pumps to be directly installed on the municipal pipeline network. In order to solve the problem that the water supply equipment can be connected in series to the municipal water supply pipe network without generating negative pressure, and it does not affect other users' water use, it is necessary to add a flow controller, a sub-cavity stabilized pressure compensation tank, etc. between the water pump inlet and the municipal pipe network. The flow controller constantly monitors the pressure of the municipal pipe network. While ensuring that the municipal pipe network does not produce negative pressure, it can also make full use of the original pressure of the municipal pipe network. At this time, it is necessary to use a non-negative pressure water supply system. 　　When municipal piped tap water enters the regulating tank at a certain pressure, the air in the stabilized pressure compensation tank is discharged from the vacuum eliminator, and the vacuum eliminator is automatically closed after the water is full. When the tap water can meet the water pressure and water volume requirements, the water supply equipment directly supplies water to the water pipe network through the bypass check valve; when the pressure of the tap water pipe network cannot meet the water requirements, the system will pass pressure sensors, or pressure controllers, and electricity. The contact pressure gauge gives the pump signal to start the pump operation. 　　The variable frequency constant pressure water supply system is mainly composed of PLC control unit, frequency converter, pump motor, water supply pipe network, water storage tank and pressure sensor, as shown in the figure below. 　　The constant pressure water supply pump station uses multiple pumps and motors, which can be put into operation according to the water consumption. Therefore, the power of a single pump motor is not large, and the system has a backup pump for maintenance without stopping work. The running number of the water pump is controlled by PLC, and the motor speed is controlled by the frequency converter to meet the needs of different water consumption.   　　The pressure sensor is one of the main accessories in non-negative pressure water supply equipment and variable frequency constant pressure water supply equipment. The original remote pressure gauge is upgraded to a pressure sensor. The previous remote pressure gauge not only makes the entire water supply system unstable, but also It also needs to be replaced frequently, which increases the cost of after-sales service. The use of pressure sensors can not only solve the problem of unstable water supply, but also is not easy to damage. At the same time, it also reduces after-sales costs.     　　Through the high-sensitivity pressure switch or pressure sensor installed on the water supply pipe network, the pressure change of the water supply pipe network when the water consumption changes is detected, and the changing signal is continuously transmitted to the microcomputer. According to different operating conditions, the compensation amount is dynamically controlled to achieve dynamic pressure balance and ensure a constant pressure in the water supply pipe network to meet the water needs of users.     　　In fact, the pressure sensor can be divided into: pressure sensor and pressure transmitter according to the output signal and whether the amplifier circuit is installed in the body. At the same time, according to whether it can measure corrosive media and adapt to harsh environments, it can be divided into: general-purpose and isolated. According to the different signals, it can be divided into current-type pressure sensors: generally 4-20mA; and voltage signal-type pressure sensors. : 0 to 12V.     　　Hunan Firstrate Sensor Co., Ltd. is a professional sensor manufacturer in the secondary water supply industry. Products are sold at home and abroad, and have reached long-term and stable cooperative relations with many water supply equipment suppliers. Our products cover various applications such as non-negative pressure water supply equipment, variable frequency water supply equipment, constant pressure water supply equipment, secondary water supply equipment, single pump variable frequency water supply equipment, integrated smart pumping station, and urban water supply pipe network pressurized pumping station, etc. The secondary water supply industry manufacturers have applicable requirements for professional sensors that are waterproof, dustproof, and resistant to frequency conversion interference. Our products have leading technology, exquisite structure, reliable quality, and strong environmental adaptability. Welcome to inquire and cooperate!

1. What is IIoT? 　　IIoT is the Industrial Internet of Things. The Industrial Internet of Things is the continuous integration of various acquisition and control sensors or controllers with perception and monitoring capabilities, as well as mobile communications, intelligent analysis and other technologies into all aspects of the industrial production process, thereby greatly improving manufacturing efficiency. Improve product quality, reduce product costs and resource consumption, and finally achieve a new stage of upgrading traditional industries to intelligence. In terms of application form, the application of the Industrial Internet of Things has the characteristics of real-time, automation, embedded (software), security, and information interoperability.     2. The relationship between industrial sensors and IIoT 　　Without sensors to measure important production parameters such as pressure, location, and temperature, the Industrial Internet of Things (IIoT) will not play any role. Therefore, it can be understood that when IIoT and consumer IoT applications continue to grow, the sensor market is also taking off. The continuous innovation of sensor technology will expand the expansion capabilities of the Internet of Things. 　　In the automotive industry (self-driving cars create a huge demand) and medical applications (health monitoring and medical diagnosis are the key), there are more sensors appearing, but they are far less than the large demand in the industrial field, accounting for more than the sensor market one third.     3. The proportion of industrial sensors in the sensor terminal market 　　IIoT will stimulate the huge demand for sensors. A report pointed out that industrial data is expected to double in the next 10 years. In view of the professional field knowledge of industrial participating companies, IIoT technology should obtain higher profit growth opportunities.     　　As a relatively mature terminal market, industrial applications pay more attention to high-end rather than mass production. Sensors used in harsh environments need to meet the requirements of high reliability, high precision, and miniaturization. As machine-to-machine (M2M) communication becomes more complex, sensors are helping to achieve predictive maintenance, asset monitoring, and data analysis to improve production efficiency. 　　It is reported that large industrial automation companies are not the only entities competing for the IIoT market. Sensors and actuators suppliers have long served the industrial automation and monitoring market and have always been at the forefront of the IIoT market. As more and more computing and value are transferred to the edge of IIoT, such key sensor and actuator companies are becoming more and more important for the realization of smart factories. This is undoubtedly good news for sensor manufacturers.   4. Professional industrial sensor manufacturer 　　Hunan Firstrate Sensor Co., Ltd. is a high-tech enterprise integrating R&D, production and sales of sensors and IoT systems. We will uphold the corporate mission of "Sunac high-tech and contribute to the development of my country's industrial automation", aim at the frontiers of global sensor technology and Internet of Things technology, promote the process of sensor industrialization, and strive to be pioneers, innovators, and pioneers in the sensor field. Front runner. Welcome to call us for consultation and cooperation!

　　Loaders, as a common engineering construction machinery, are mainly used for shoveling bulk materials such as soil, sand, lime, coal, etc., and can also be used for light shoveling operations on ore and hard soil. You must be curious, how to calculate the weight of each shovel of the loader? One shovel weighing? Unrealistic! Weigh together after handling? Too troublesome! So, how can weighing be fast, efficient, and accurate? This of course depends on the current high-tech-loader scale!     　　Loader scale is an electronic weighing equipment installed on a wheel loader to measure the load. It can provide various loading information such as the single shovel value and accumulated value of the weighed material and print the list. While loading, it dynamically responds to the loading volume, helping customers complete weighing operations quickly and at low cost, and accurately loading and unloading. , Prevent overloading and improve work efficiency.     　　Loader scales are the most common name for loader industrial weighing equipment in the industrial industry. They are also called loader electronic scales, loader scales, forklift scales, forklift electronic scales, etc., generally composed of sensors, position switches and on-board Composition of weighing instrument. 　　1) Pressure sensor: measure the pressure change of the hydraulic system of the loader; 　　2) Position switch: When the boom is raised to the proximity switch, the system collects pressure data; 　　3) Vehicle weighing display instrument: the weighing data is calculated and the weighing result is displayed on the screen of the instrument.   　　Working principle: 　　The pressure change of the hydraulic system of the loader is measured by the pressure sensor/transmitter, the pressure data is collected by the system, and the weight of the loading bucket is converted by the on-board weighing instrument to complete the weighing operation. The measurement accuracy of the pressure sensor/transmitter is adopted. Compared with the use of load cells, the safety is also reliably guaranteed.     　　The FST800-Z301/Z311 series sensors developed and produced by Hunan Firstrate Sensor Co., Ltd. are mainly used in loaders/forklift electronic scales. After installing the corresponding electronic scales on the loader, they can be automatically weighed during loading and unloading operations. Metering, which has a significant effect on strengthening the management of loading operations, preventing overloads and underloads, improving the efficiency and benefits of loading and unloading operations, and ensuring the safety of vehicle transportation. This series of products have the following characteristics: 　　■ High sensitivity and high precision; 　　■ Using sputtering film pressure sensitive components; 　　■ Low power consumption, no hysteresis, and good repeatability; 　　■ Wide applicable temperature range and good long-term stability; 　　■ Excellent impact resistance, overload resistance, vibration resistance, and corrosion resistance 　　For more sensor selection and application solutions, please call us!

　　On the evening of April 15th, French local time, a fire broke out in the Notre Dame Cathedral with a history of more than 800 years, and the entire building was seriously damaged. The fire brought tears to the world, which can be called the death of world civilization.     　　Looking at others and thinking about yourself, in our country, most cultural relics protection units are mainly brick-and-wood structures, and the pressure on fire safety is great. The pressure gauges and pressure sensor monitoring devices in the fire water pipe network system are like guards who are ready to fight at all times. Monitoring the pressure of the fire pipeline.     　　We know that once an open flame is encountered, the sprinkler device of the fire protection system is activated, and the pressure in the sprinkler pipe will inevitably drop. Therefore, the use of a pressure sensor to detect the water pressure in the sprinkler pipe can reflect whether the sprinkler is activated. If it is activated, then At the same time, start the booster pump to increase the water pressure in the fire-fighting pipeline to ensure the water supply for the fire extinguishing and avoid delaying the best time for fire extinguishing due to water shortage or insufficient water pressure. It can be seen that reliable fire-fighting water pipe pressure sensor products play a pivotal role in the fire-fighting monitoring system.     　　As the "neuron" of the fire protection monitoring system, these water pipe pressure sensors are widely distributed in all corners of the fire protection network. Supervision and maintenance is also a very big project. In order to save maintenance costs and improve efficiency, the industry has proposed improvements to these types of sensors. High demands. 　　Hunan Firstrate Sensor Co., Ltd. adopts a wireless/wired integrated access method to address the fire hazards of combustible gas and electrical fires in public places, old buildings and small and micro places, and proposes an overall solution for the Internet of fire fighting to solve the difficulties of fire fighting facilities. Difficulties such as detection lag, management blind spots, real-time monitoring, timely maintenance and linkage alarm of the fire-fighting facility management platform are widely used in smart fire-fighting IoT monitoring systems. 　　The world of IOT, sensing first, Hunan Firstrate Sensor Co., Ltd. is willing to work with you to create a better tomorrow!

　　A few days ago, the first "horizontal skyscraper" in China-the Crystal Corridor of Chongqing Raffles City is about to be completed and put into use. In order to "move" this corridor to an altitude of 250 meters, engineers used a series of measurement methods such as travel switches, displacement sensors, total stations, and laser rangefinders.     　　It is reported that, in order to ensure the synchronization of each lifting point during the “lifting” of the truss section, the stroke displacement sensor that comes with the lifting system transmits the real-time “walking” and “status” data of each point to the background computer. The team also used a series of other measurement methods to monitor in real time.     　　Due to forces and other reasons, certain deformation and offset will occur during the ascent of the segment. This requires a large number of sensors on the segment to monitor the position of the hoisting segment and make timely adjustments based on the sensor data to improve the accuracy of the closing process. Control to the allowable range of error to ensure the safety of the structure.     　　Due to the special geographical location considerations of the project, before the formal upgrade, wind resistance, synchronization, construction time, and the width of the E-shaped steel frame of the main body of the high altitude should also be considered, such as the visibility and wind of the Chaotianmen Wharf. The level and wind speed, etc., will not increase when the wind reaches level 3 to ensure construction safety. 　　At present, the wind speed and direction products independently developed by Hunan Firstrate Sensor Co., Ltd. are made of all-aluminum alloy, with strong wind resistance, multi-level lightning protection, and anti-surge design. They are widely used in the monitoring and monitoring of high-altitude operations. control.  

　　In modern industrial production, especially in automated production processes, various sensors are used to monitor and control various parameters in the production process, so that the equipment works in normal or optimal conditions, and the products reach the best quality. China's sensor market has continued to grow in recent years, with a growth rate of more than 15%. In 2012, the four major areas of sensor applications in China were industrial control, automotive electronics, communication electronics and consumer electronics.   　　With the advent of the information age, sensors have become the main way and means for people to obtain information in the fields of nature and production. In modern industrial production, especially in automated production processes, various sensors are used to monitor and control various parameters in the production process to make the equipment work in normal or optimal conditions, and to achieve the best quality of products; in basic disciplines In the research, the sensor has a prominent position.     　　Today, sensors have already penetrated into a wide range of fields such as industrial production, space development, ocean exploration, environmental protection, resource investigation, medical diagnosis, bioengineering, and even cultural relic protection. It can be seen that the important role of sensor technology in developing economy and promoting social progress is very obvious. Statistics show that the annual operating income of the global smart sensor market will increase at a rate of 10 per year and will reach US$6.9 billion by 2018. At present, the number of sensor devices with processors installed in the world is 65 million, and this number will reach 2.8 trillion by 2019.   　　Sensors are the basic products in the electronic information equipment manufacturing industry, and are the special components in the new electronic components that are being developed. As a high-tech industry recognized at home and abroad with a promising future, the sensor industry has attracted worldwide attention for its high technical content, good economic benefits, strong penetration capability, and broad market prospects. Driven by the booming electronic information industry market, my country's sensors have formed a certain industrial foundation, and have made considerable progress in technological innovation, independent research and development, transformation of results, and competitiveness, making important contributions to promoting the development of the national economy.    　　China's sensor market has continued to grow in recent years, with a growth rate exceeding 15. In 2012, the four major areas of sensor applications in China were industrial control, automotive electronics, communications electronics and consumer electronics, of which industrial and automotive electronics accounted for about 42 market shares. From January to March 2012, driven by the development of the Internet of Things industry, my country's sensor market reached 17.21 billion yuan, a year-on-year increase of 23.3. According to data from the National Bureau of Statistics, from January to March 2012, my country produced 1.17 billion sensors of various types, an increase of 13.7 year-on-year. In terms of import and export, according to data from the General Administration of Customs, as of March 2012, imports have increased by about 40 year-on-year; the export situation is less optimistic. The slowdown in my country's export growth is almost reflected in all export markets (except South Korea), and the impact on Europe The decline in exports was particularly significant, with the lowest growth rate in exports to the EU.   　　Looking back at the development of my country's sensitive components and sensor industry, although rapid, there are still some shortcomings, such as low product technology, weak industrial foundation, lack of product categories, and weak corporate R&D capabilities. Therefore, the country is successively formulating policies that are conducive to the development of the sensor industry. In addition, the continuous emergence of emerging technologies has also become a favorable factor for the development of the sensor industry. With the development and application of new sensors applied to the Internet of Things, low-carbon economy and other fields, the sensor industry will occupy a more important position in the electronic component industry and play a greater role.   　　In modern industrial production, especially in automated production processes, various sensors are used to monitor and control various parameters in the production process, so that the equipment works in normal or optimal conditions, and the products reach the best quality. Therefore, it can be said that without many excellent sensors, modern production has lost its foundation.   　　Sensors have important applications in many industries, and many industries are now trying to open up the use of sensors to ach

　　What happens when the water level is too high? Can industrial IoT sensors help smart cities build effective flood warning systems? 　　Fortunately, current technology makes it easier to quickly deploy environmental monitoring solutions. In this article, we will focus on how IoT devices monitor the water level of the flood warning system. 　　How does the IoT water level sensor work?   　　You have many options for how to monitor the water level, and there are many hardware manufacturers and various technologies available. Let us discuss common IoT water level sensors, you can choose from them: 　　★Ultrasonic liquid level sensor 　　★Pressure Sensor 　　★Radar level sensor   　　Ultrasonic liquid level sensor 　　Under normal circumstances, ultrasonic sensors will emit sound waves to determine the level of liquid. Whether it is monitoring chemicals in storage tanks or measuring river water levels on bridges, ultrasonic sensors can reach the target (such as water) based on the sound waves and return to the sensor. Time to measure the liquid level.   　　Based on these high-frequency sound waves, ultrasonic sensors output sensor readings, usually in an industry standard sensor format, such as 4-20mA. Ultrasonic sensors are deployed above the liquid to be monitored and are called non-contact sensors. 　　Pressure Sensor 　　In a sense, pressure sensors can measure the pressure or weight of the liquid on the device. They are considered passive sensors, not active sensors. Active sensors such as ultrasonic and radar sensors have their active output for level measurement. signal of. 　　The pressure sensor converts the pressure into the sensor standard protocol (such as 4-20 mA) output signal. Please note that the pressure sensor will be in contact with the body of water being monitored, and a more precise measurement is required at the bottom. 　　For some monitoring scenarios, this may be a challenge because there may be silt or flowing debris in the liquid, which may damage the sensor. In other cases, such as monitoring the water level and depth of the well, the pressure sensor is usually the most effective Water level sensor. 　　Radar level sensor   　　The radar sensor uses a probe to guide the high-frequency radar and electromagnetic waves from the sensor to the water level being monitored. The radar water level sensor will output the water level reading according to the length of time it takes for the radar pulse to return. 　　Generally, radar sensors are more expensive than other types of liquid level sensors. However, the waves and pulses output by the radar sensor can often penetrate things that may interfere with the true measurement level, such as bubbles or vapors. For this reason, you will decide which level sensor or combination of level sensor technology will work best in a particular scenario. 　　Application of Water Level Sensor of Internet of Things in Flood Warning System 　　Most importantly, effective flood warning systems and other water level monitoring systems integrate IoT sensor technology. 　　Smart cities on the east coast of the United States have deployed flood warning systems that use industrial IoT sensors to monitor water levels. Specifically, the ultrasonic and radar water level sensors mentioned above are the most commonly used, as can be seen from the photos of the article.   　　In addition, according to our experience, the sensors in the flood warning system usually use solar panels to supply power, and use mobile phone networks or WiFi to upload sensor information to the cloud. As you know, in the end it all depends on the most effective deployment that each customer really needs. 　　The above is a brief overview of how industrial IoT water level sensors are used in water regime monitoring systems (such as flood warning systems). According to our experience, the Industrial Internet of Things has had a huge positive impact on the water monitoring industry, from well water resources management to flood warning systems!

In the process of rapid planning and development of modern cities, underground infrastructure is often ignored because of its concealment. For this reason, when the rainy season comes, some streets and urban areas usually have serious water accumulation and flooding, which brings many inconveniences to people's daily life and travel, and even causes public safety accidents. In order to strengthen the monitoring of water accumulation on urban roads and areas that may cause safety accidents during the rainy season or heavy rainfall, the liquid level sensor can be used to detect the accumulation of water at a specific depth in order to respond to the situation to the supervisory authority and issue warning information to the citizens in dangerous areas.   The liquid level sensor detects whether the water level reaches a specific height through the optical principle, and can be used to reflect relevant information such as liquid level height, pressure and weight. In the monitoring of accumulated water on urban roads, the liquid level sensor is installed at a set warning height, especially in some low-lying terrain or culverts. When the stagnant water reaches the warning height, the refractive index of the sensor at the interface changes due to contact with water (relatively not in contact with water), which changes the light received inside the sensor and detects the presence or absence of liquid. Since the liquid level sensor can only detect the water level at a specific height, but not the change of the water level, more accurate detection can be performed by deploying multiple sensors at different heights to reflect different levels and changes of water accumulation.

　　With the development of information technology, sensors, as the nerve tentacles of the information industry, bring people from the "communication era" to the "perception era". Sensors are an important tool for data collection and an important technological basis for the new technological revolution and information society. They are widely used in various fields such as aerospace, aviation, national defense, science and technology, industrial and agricultural production. Smart sensors based on micro-electromechanical system technology represent the main development direction of sensors. The advancement of its technology can not only improve the level of product intelligence, but also promote the development of China's manufacturing to China's intelligent manufacturing. 　　After 2010, China has become the largest country in industrial manufacturing, but we must clearly realize that China’s manufacturing industry is large but not strong, and the status quo of unsustainable development. The problems are mainly concentrated in the lack of independent innovation capabilities and low industrial value. Low operating efficiency, unreasonable industrial structure and product quality. The Chinese government attaches great importance to the development of the manufacturing industry. "Made in China 2025" marks the first step of "Made in China" to "from large to strong". Among them, intelligent manufacturing is positioned as the main direction of manufacturing in China, and German industry 4. 0. Corresponding to the Industrial Internet in the United States. Mao Weiming, Vice Minister of the Ministry of Industry and Information Technology, pointed out: "Sensing technology, together with computing technology and communication technology, should be collectively referred to as the three pillars of the information technology field. Sensory manufacturing represented by sensors will be an important strategic emerging industry in the future. It is the source of the information system and the core to realize automation and intelligence."   　　The disadvantages of traditional sensors are highlighted 　　The sensor is closely related to Chinese manufacturing. The sensor is a basic component, the cornerstone of the industry, the key to performance, and the bottleneck of development, and its importance is self-evident. The sensor has the characteristics of large usage and wide range of applications, and has played a role in connecting the previous and the next in the industrial production and manufacturing. At present, in Chinese manufacturing companies, the use of sensors to collect, process and transmit data is not new, but traditional sensors have two problems: 　　1. Performance aspect 　　Traditional sensors basically belong to the low-end basic category, with slow response, low accuracy, poor stability, large volume, poor adaptability to harsh industrial sites (high temperature, dust, humidity, electromagnetic interference, etc.), high energy consumption, Problems such as low technical content and short life span. In modern industrial control, to ensure high-quality and efficient operation of production equipment, built-in sensors not only require communication, but also sufficient accuracy and stability. In different industrial application scenarios, some precision instruments or equipment themselves are small in size, which also puts forward higher requirements for the miniaturization of sensors. 　　2. Functional aspect 　　Traditionally, in the process of data collection, the same working principle can only be used to record physical variables in the form of data, and then send the collected data to the equipment controller. It is impossible to automatically and intelligently collect, provide and analyze massive amounts of data at the front end. The function of industrial data cannot communicate with the Internet or the cloud at all times. Big data analysis, as the basis for the realization of intelligent manufacturing, requires sensors to operate more intelligently. This is essential for the integration of big data and industrial automation, and it is also a breakthrough in the realization of intelligent manufacturing. Therefore, traditional sensors can no longer meet the production needs of modern manufacturing, and it is imperative for sensors to develop toward intelligence.   　　Advantages of smart sensors 　　The concept of smart sensor was first proposed by NASA in the process of developing spacecraft. It refers to a multi-element integrated circuit with functions such as information collection, information processing, information exchange, and information storage. It is an integrated sensor, communication chip, and micro-processing. Drivers, drivers, and software algorithms are equal to an integrated system-level product. Compared with traditional sensors, smart sensors have the ability to automatically collect information from the external environment, data processing, logical judgment, function calculations, self-di