The numerical control system is the abbreviation of digital control system. According to the control program stored in the computer memory, it executes part or all of the numerical control functions, and is equipped with a dedicated computer system with an interface circuit and a servo drive device. Through the use of digital commands composed of numbers, words and symbols to achieve the motion control of one or more mechanical equipment, it usually controls the mechanical quantities and switching quantities such as position, angle, speed and so on.
CNC systems play an important role in production and life, especially for high-end CNC machine tools that are urgently needed in the defense industry. High-end CNC systems are the key factors that determine the performance, function, reliability and cost of machine tool equipment.
CNOOC Tianjin LNG project central control system realizes localization
On December 10, 2013, CNOOC Tianjin LNG project successfully put into operation the first localized control system. The CNOOC Tianjin LNG project is the first floating LNG project in China. The central control system is provided by a domestic company. The DCS (distributed control system) technology, SCADA (data acquisition and monitoring control system) pipeline technology, and PLC (programmable Logic control system) technology, process simulation technology and other aspects have complete independent intellectual property rights.
The successful operation of the Tianjin LNG project marks that the domestic DCS system has broken the technological monopoly of foreign countries in the related fields of LNG receiving stations and filled the domestic gap. As the first floating LNG project in China, the National Energy Administration attaches great importance to Tianjin LNG, regards it as a pilot project of the Energy Bureau, and listed it as the first batch of capital air pollution prevention and control major energy security projects in September this year. LNG is short for liquefied natural gas and is regarded as the cleanest "fossil" energy source on earth.
Hebei Iron and Steel Handan Iron and Steel batching control system upgrade to create benefits of 1.4 million yuan
The technical staff of Handan Iron and Steel Automation Department of Hebei Iron and Steel Group successfully upgraded the 400 square meters sintering machine I series batching control system MULTICONT system to the most advanced DISOCONT system. The annual benefit can be 1.4 million yuan.
Handan Iron and Steel 400 square meters sintering machine â… series batching control system was originally Schenck MULTICONT system, the system has been put into operation since 1999. At present, the on-site batching scale sensor is severely corroded and aging, and the signal drift phenomenon occurs repeatedly, which can no longer meet the accuracy of the normal batch production requirements. Moreover, the control equipment such as system unit, input / output unit and data receiving unit in the control system have been discontinued and there is no substitute for related products. Once the control system fails, it will seriously affect the normal operation of the sintering batching system.
The technical staff of the department carefully studied the production process and upgraded the system to Schenck's most advanced DISOCONT system. Using fieldbus technology, the open, independent and digital two-way multivariable communication was used to replace the instrument analog signal, which greatly improved the accuracy of the signal And anti-interference ability.
Video surveillance system needs to be installed for water projects under construction in Dongguan, Guangdong
On December 18, 2013, the Water Affairs Bureau of Dongguan City, Guangdong Province issued the "Dongguan Waterworks Construction Site Video Surveillance System Management Measures" (hereinafter referred to as the "Measures"), deciding to implement video surveillance on waterworks construction sites under construction.
According to the "Measures", from December 20th, newly started waterworks projects that meet the following conditions must install a video surveillance system. Conditions include: sluices, pumping stations, water purification plants and sewage treatment plants with a project investment of more than 5 million yuan; construction safety accidents have occurred; the Water Supply Bureau or the municipal water engineering quality and safety supervision station entrusted by the Water Affairs Bureau issues the "Temporary Suspension of Construction Notice The book was issued twice or more; after being issued the "Notice of Temporary Suspension of Construction" by the Municipal Water Affairs Bureau or the Municipal Water Engineering Quality and Safety Supervision Station entrusted by it, after review, it has not been revised and there are major safety hazards; Dangerous engineering projects such as pits, high formwork, external scaffolding and high slopes; other waterworks projects that require video surveillance systems.
The Water Affairs Bureau of Dongguan City, Guangdong Province stated that any water projects that should be video-monitored and not installed or installed in accordance with regulations shall not be subject to quality and safety supervision procedures. In this way, the CNC system is very important for the water engineering industry.
Summary: With the development of science and technology, more and more CNC systems are used in the production and life of enterprises. The CNC system not only determines the key factors such as the performance, function, reliability and cost of related equipment, but also affects the production development of the enterprise. It is also related to national defense construction, economic development, environmental development and other important national events. Development has played an important role, not only bringing value to the enterprise, but also benefiting mankind.
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