With the continuous development of technology, we are ushering in a digital age. In this era, data has become one of the most important resources. Remote data collection is an emerging technology that is gradually changing the way we live and work. In this article, we'll take a closer look at the concept, applications, and future trends of remote data collection.
Data acquisition systems occupy a key position in the field of communication and information technology. With the rapid development of information technology, various data acquisition systems have been widely used in many fields such as industry, agriculture, national defense science and technology, and artificial intelligence, and at the same time, the strict requirements for its technical indicators such as accuracy, storage size, linearity, anti-interference ability, acquisition area and control method are also increasing. Especially for the vast majority of data acquisition that requires real-time remote transmission, this undoubtedly poses a higher challenge to data acquisition.
With the gradual improvement of the level of industrial automation, the data acquisition process is often closely connected with the industrial control link, forming a complete set of data acquisition and monitoring system. Many business sectors, such as environmental protection, meteorology, electric power and other industries, as well as scientific research fields such as military and marine hydrology, often need to remotely and automatically collect, store and transmit a large number of widely distributed field data. Data acquisition technology is also widely regarded as an important direction for the development of modern scientific research and technology.
The advancement of modern data acquisition technology is based on the improved performance of the hardware and software platforms of the acquisition system. With the rapid development of computer technology, the data acquisition system has developed from the traditional measurement and control circuit to a modern data acquisition and measurement and control system composed of microcomputers, interface circuits, external general equipment and industrial production objects, and has been widely used in all walks of life. However, the data acquisition and monitoring system with the microcomputer as the core platform has gradually exposed many defects, such as the poor dustproof and shockproof functions of the microcomputer under the general conditions of the industrial environment, the large size and not easy to carry and use, the poor scalability and high cost.
With the advent of the post-PC era, embedded technology has developed rapidly, and modern industrial data acquisition systems have also entered the embedded system mode from traditional circuits and microcomputer models. With the continuous intervention and development of new technologies, data acquisition systems are moving towards high precision, high speed, stability and integration, and the development work is becoming more and more complex. At the same time, most data acquisition systems are independent systems, which can only collect or store data on site, which can no longer meet the needs of some applications, and urgently need to access the network to achieve remote monitoring and management.
With the help of network communication technology, the embedded data acquisition system enables the collection terminal to access the Internet in the form of GPRS, and uploads the collected data to the remote controller in real time, thereby eliminating the collection and storage of data from various pollution sources under harsh environmental conditions, and greatly reducing the workload of manual labor. At the same time, the monitor can also understand the on-site working status at any time through the network to achieve the purpose of monitoring, control and management.
At home and abroad, the research on embedded data collection is very extensive. In terms of theoretical research, there have been a lot of data on embedded system data acquisition systems, including software and hardware implementation schemes and design ideas.
In terms of data transmission and communication design, there are also analyses of the design and implementation of embedded systems using different communication methods. In terms of applied research, foreign countries have realized the real-time and networked transmission of data collection such as environmental monitoring and meteorological numerical forecasting with embedded systems, and some embedded data acquisition and transmission systems have also appeared in China, such as community safety monitoring systems, real-time fire monitoring systems, etc. However, due to the control chip structure and operating system, these systems are still lacking in data processing capabilities and function expansion, and need to be further improved.