Inertial navigation equipment can provide carriers with basic physical information such as heading, position, posture, speed, etc., and is one of the core sensing devices of information equipment.
Inertial navigation technology is one of the most important military technologies. It is no exaggeration to say that the development level of inertial navigation directly affects the advanced nature of a country's weaponry.
With the reduction of cost and the growth of demand, the application of inertial navigation has been extended to the civilian field, and is even widely used in robots, cameras and children's toys. It is estimated that the annual market size of military inertial navigation in China is about 13 billion yuan. Coupled with the continuous expansion of the civilian field, the market prospect of inertial navigation in China is immeasurable.
I. Introduction to inertial navigation
Inertial navigation system (INS) is a kind of independent navigation equipment that can provide load continuously and in real time ** position, posture, speed and other information; it is characterized by not relying on external information, not subject to climatic conditions and a variety of external interference.
Inertial navigation and control systems were initially used primarily by aerospace, ground and maritime military users. It is a core technology product of modern defense systems and is widely used in aircraft, missiles, ships, submarines, tanks, and other defense applications. With the reduction of cost and the growth of demand, inertial navigation technology has been extended to commercial areas such as earth surveying, resource surveying, geophysical surveying, ocean exploration, railroads, tunnels, etc., and is even widely used in robots, cameras and children's toys.
Second, the basic composition of inertial navigation
Inertial navigation system usually consists of inertial measurement devices, computers, displays and other components. The inertial measurement device consists of two core inertial components: accelerometer and gyroscope.
Gyroscope
According to the different gyroscopes, the inertial navigation system can be divided into electromechanical gyroscopes (including liquid buoyancy, air buoyancy, electrostatic, flexible, etc.), optical gyroscopes (including lasers, optical fibers, etc.), micro-mechanical (MEMS) gyroscopes and other types of inertial navigation systems.
A gyroscope in the traditional sense is an object mounted in a frame rotating at high speed around the axis of symmetry of a rotating body. Due to optics, MEMS has introduced other technologies in the development of gyroscopes, and it is now customary to collectively refer to devices capable of accomplishing gyroscopic functions as gyroscopes.
There are many types of gyroscopes, which can be roughly categorized into ultra-high precision gyroscopes, medium-high precision gyroscopes, and low-precision gyroscopes according to their precision ranges.
Ultra-high precision gyroscope precision range of 10-6o / h ~ 5 * 10-4 o / h, mainly including liquid floating gyroscope, electrostatic gyroscope, etc., the highest precision gyroscope is electrostatic gyroscope.
5 * 10-4 o / high-precision gyroscope precision range h ~ 10-1 o / h, at present, the most promising gyroscope is the optical gyroscope. Laser gyroscope belongs to the first generation of optical gyroscope, fiber optic gyroscope belongs to the second generation of optical gyroscope. In recent years, due to the fiber optic gyroscope in the accuracy, performance and size has more potential, more and more favored by the military of various countries.
Low-precision gyroscope accuracy range of more than 10-1o / h, MEMS is currently developing good prospects Gyroscope, although low precision, but low price, so that it has a broad application prospects.
According to MIT Draper microelectromechanical / micro-optoelectromechanical gyroscope in 2020 to occupy the field of low- and medium-precision applications, the laboratory predicted the next generation of inertial sensors in the United States and applications.
Accelerometers
Accelerometers are another core component of inertial navigation systems. An accelerometer is an inertial device used to sense the specific force of a moving carrier along a certain direction, and can measure acceleration and gravity to calculate the velocity and position of the carrier.
Currently the more mature accelerometers include liquid-floating pendulum accelerometers, flexible pendulum accelerometers, quartz beam accelerometers and MEMS accelerometers. Liquid-floating accelerometer, flexible accelerometer technology has been very mature, some areas are still in the application, quartz vibration beam accelerometer is widely used in high-precision areas, MEMS in the field of low and medium precision, accelerometer development is rapid.
With the continuous emergence of new materials and new detection mechanisms, high-precision, intelligent MEMS future accelerometers will be more widely used. Among them, the combination of MEMS and micro-optical technology - MOEMS will become a research hot spot of inertial sensors.
Third, the global market pattern: the United States absolutely leading, China is still the third echelon
The global inertial navigation market size is expected to reach 8.87 billion U.S. dollars in 2020, with a CAGR of 13.81% from 2016 to 2020. According to MarketsandMarketss forecast report released in January 2016 2015-2020 benefited from the increase in the number of aircraft, the improvement of navigation accuracy
Ltd. specializes in high-precision GNSS modules and wireless communication products, technology development and application promotion service providers, relying on the wireless communication technology in the field of R & D and promotion of experience, JUNODA set up a team with a wealth of experience in hardware and software development technology, aimed at domestic and foreign OEM / ODM customers and system integrators to provide high-quality, high-performance wireless modules and applications! We aim to provide high-quality, high-performance wireless modules and application programs to OEM/ODM customers and system integrators at home and abroad, and create long-term value for customers!
The company mainly provides integrated antenna module, dual-frequency high-precision module, single-frequency high-precision module, thousand-seeking high-precision module, Zhongke micro-positioning module, U-BLOX positioning module, SICOM communication module, inertial navigation DR module, UWM GNSS module, RTK differential module, 4G communication module and high-precision antenna, etc., the products are sold well in Beijing, Shanghai, Shenzhen, Guangdong, Jiangsu, Zhejiang, Sichuan, Hunan and other parts of the country. Our GNSS modules are widely used in many application fields, such as drones, vehicle security monitoring and dispatching, automatic bus stop announcement, DVR, car DVD navigation, GPS electronic dog, synchronized timing, high-altitude balloon monitoring, engineering machinery, industrial automation, etc. In the field of wireless communication products, the company is closely involved in the field of wireless communication, such as RTK differential module, 4G communication module and high-precision antenna.
In the field of wireless communication products, the company follows the latest development of international communication technology, introduces and acts as an agent for wireless communication modules that meet the market demand, and the products have a comprehensive layout from 2G, 3G, 4G, and are widely used in financial electronic payment, vehicle remote control, remote advertising information, repeater monitoring, mobile Internet terminals, smart home, remote medical care, network testing, enterprise information management, anti-theft alarm, Remote video transmission, intelligent meter reading, mobile computing, network navigation, voice phone, wireless gateway and other fields. Focused areas include video surveillance, network optimization, routers, POS and other M2M industry applications.
If you need to consult, please contact online customer service!
