There is no definitive and unified definition of the Internet of Things. It has been suggested that the Internet of Things is the Internet connected between things and the core foundation is still the Internet. It has been suggested that the Internet of Things is not the next generation of the Internet, but an extension of Internet applications. The connotation of the Internet of Things is larger than that of the sensor network, and it is smaller than the ubiquitous network. The Internet of Things should realize the management functions of information acquisition, transmission, and processing of things to things, things to people, and people to people.
According to the relevant data analysis and sorting, the author defines the Internet of Things as a kind of network that realizes information management by connecting the object to the network through the sensing device (device). The sensing device here can be a smart sensor. (for continuous control fields), RFID readers (for discrete control fields), other sensing devices for acquiring information, etc. The network here may be the Internet, a sensor network, a local area network, a personal area network, a network thereof, a field bus, and the like.
China's Internet of Things is still in its infancy. In order to promote the development of the Internet of Things industry, the Ministry of Industry and Information Technology will adopt four measures to support telecom operators to carry out IoT technology innovation and application engineering, mainly:
â— Break through key technologies and achieve technological innovation. Such as low energy consumption, low cost, versatility, real-time, intelligence and other common key technologies, "collaborative" processing technology, promotion of application technology.
â— Formulate development plans and provide a comprehensive and rational layout. Focus on the development of high-end sensors, MEMS sensors, intelligent network sensors, sensor nodes, sensor gateways; UHF RFID, active RFID and RFID middleware; focus on the development of Internet of Things related terminal equipment, application software and information services.
â— Promote demonstration applications and drive industry value. At present, the application of the Internet of Things is mainly in eight aspects, namely, industrial, agricultural, smart grid, transportation, logistics, medical and health, energy conservation and environmental protection, and public safety. Constructing an application demonstration project, establishing an application-driven industrial development model, and enhancing the overall value of the industrial chain in the application process of the Internet of Things.
â— Develop uniform standards to ensure healthy development. According to the needs of the industry, a mechanism for technological innovation, standard setting and intellectual property coordination and interaction will be formed. Strengthen key technology research, build standard service platforms such as standard verification, testing and simulation, and accelerate the formulation, implementation and application of key standards. Actively participate in the formulation of international standards, integrate domestic research forces to form synergies, and promote the research results of domestic independent innovation to the international.
The development of smart sensors
The concept of smart sensors was introduced from abroad and is usually defined as "a sensor with a microprocessor and information processing function." According to the National Standard for Sensitive Components and Sensor Terminology, the term "sensor" is defined as a device or device that senses the specified measured and converted into usable output signals according to certain rules. It usually consists of sensitive components and conversion components. The "processing functions" here mainly include:
â— Self-test, self-correction, and self-protection. Such as automatic data collection, self-test, self-processing, automatic storage and memory; self-calibration, self-calibration, self-calibration, self-compensation; self-seeking faults, self-correction, etc.
â— Judgment, decision-making, and thinking functions. It is possible to make judgments and make decisions based on input information, and make various decisions through software control.
â— Two-way communication, standardized digital output or symbol output. In particular, the concept of smart sensors is dynamic, evolving, and changing.
In the 1980s, the signal processing circuit (filtering, amplifying, zeroing) was designed together with the sensor to output 4 to 20 mA current or 0 to 5 V. Such a sensor is a smart sensor of the time. We call it the "first generation of smart sensors."
In the late 1980s and mid-to-late 1990s, a single-chip microprocessor was embedded in the sensor to achieve temperature compensation, correction, and calibration, and the analog signal was converted to a digital signal by the A/D converter. This type of sensor not only has hardware, but also simply processes the signal through software and outputs it as a digital signal. We call it the "second generation of smart sensors."
After the concept of "field bus" was put forward, new requirements were put forward for the design of the sensor. It is required to realize all-digital and open two-way communication. The exchange of measurement and control information is mainly done through the field bus on the bottom layer, and the data exchange is mainly passed. Software such as Intranet is implemented, and the software design of the sensor is dominant. The sensitive units inside the sensor or the external intelligent sensor unit are connected by software. We call it the "third generation of smart sensors."
After entering the 21st century, the development of small-volume, low-cost, low-power microsensors is possible due to the development of MEMS technology, low-power analog and digital circuit technology, low-energy radio frequency (RF) technology, and sensor technology. Such microsensors are generally equipped with: a sensitive component (such as pressure, temperature, humidity, light, sound, magnetic, etc.) for sensing the physical quantity of the external environment, a calculation module for processing information collected by the sensitive component, and one for communication. Radio transceiver module, a power module that provides energy for various operations of the microsensor. We call it the "fourth generation of smart sensors" or "smart networked sensors."
Low Voltage Power Cables include PVC Power Cable XLPE Power Cable Orange Circular Cable Nyy Cables N2Xsy R2V Power Cable, they are used for electricity supply in fixed installation, power networks,underground and in cable ducting where where mechanical damages are not to be expected.
Generally, Electric power cables are Copper Wire conductor, PVC insulated, XLPE insulated or LSOH insulated and others, with PVC sheath or LSOH Sheath.
We supply lots of those Cable as per IEC 60502, BS 7889, AS/NZS 5000.1, VDE, SABS and other requirements.
Lv Power Cables,Low Voltage Power Cables,Electric Power Cables,Low Voltage Power Cable
Shenzhen Bendakang Cables Holding Co., Ltd , https://www.bdkcables.com