It is understood that the laser radar system and positioning technology can be combined, and then after the surface of the three-dimensional information for high-precision access, in this way in urban roads, dams and tunnels and other aspects of monitoring and modeling at any time. At present, the smallest 300mw laser pointer radar mapping system is only 3kg, can be mounted on unmanned rotorcraft, in accordance with the requirements of the construction of three-dimensional city, airborne measurement system can be a large area of three-dimensional terrain data for fast access, and the ground laser scanning system Is in the space target three-dimensional reconstruction has a great role.
Three-dimensional imaging laser radar can be divided into two categories. The first is the measurement of the three-dimensional lidar; the other is now highly respected, used in unmanned, robotic, etc., used to achieve the obstacle avoidance navigation avoidance type of laser radar. The world's first autopilot experiment is Google. The reason why it chose California is to rely on the local precise 3D map data. The radar system installed in the car measures the surrounding static objects and avoids the data that is not available on the map to reduce the speed of the pressure in time. Which means that the future can be applied to autopilot robots and location-based services and high-precision positioning is closely related, may breed out a billion market.
With the development of 10mw laser pointer radar technology, LIDAR can now be used for power inspection, not only can solve the drawbacks of manpower inspection, complete extraction of power lines from the lidar data, three-dimensional reconstruction of the power line corridor; and, airborne lidar technology It is also possible to obtain three-dimensional coordinates of power lines, power facilities, vegetation and surface structures in a single measurement by laser measurement. It can realize high efficiency and high precision inspection application under the support of digital terrain model and high resolution image.
Laser radar technology from laser ranging technology is the most simple, the gradual development of laser tracking, laser measurement, laser scanning imaging, laser Doppler imaging technology, and developed the laser radar for different purposes. At present, avoid, in the low altitude flight helicopter laser radar obstacle chemical and biological warfare agent detection and underwater target detection in military field has entered the practical stage, other applications are becoming increasingly mature, the commercial value of 5mw laser pointer radar is emerging.
Mapping has an irreplaceable role. At present, civil engineering and planning is the most important source of revenue for laser detection and measurement systems. The introduction of low-cost portable lidar is expected to reform the surveying and mapping industry in the next five years. In particular, with the advancement of technology, the use of LIDAR in the field of agriculture has been explored, including the establishment of farmland topographic maps containing slope and sunshine indices, which help farmers achieve the highest yield by pointing out the key areas that require expensive fertilizers The This shows that both the relatively traditional terrain, geographic information mapping field, or extended out of the new application areas, are not to be underestimated where the 30mw laser pointer radar business opportunities.
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