Product Introduction:

This scanning laser wind lidar targets the intelligent long-distance scanning wind measurement demands of clients in wind power, meteorology, civil aviation and other industries. Adopting pulsed coherent Doppler detection technology, it enables precise radial wind speed measurement. Equipped with a high-precision pointer for scanning detection, the system retrieves wind profile, wind direction and other meteorological data to reconstruct full wind field information.

Product Parameters:

I.Technical Parameters

II. Working Principle

This scanning pulsed coherent Doppler wind lidar is developed based on the laser Doppler effect and coherent heterodyne detection technology, realizing non-contact, high-precision, long-distance wind field measurement.

1. Laser Emission & Space Scanning The system emits narrow-linewidth, high-stability pulsed laser signals through the integrated laser transceiver. The laser beam is collimated and transmitted to the target detection area via the high-precision pan-tilt pointer, which supports flexible scanning coverage of the detection space through 360° horizontal rotation and -10°~190° vertical pitch, with a maximum rotation speed of ≥50°/s for rapid wind field mapping.

2. Echo Signal Reception & Coherent Detection When the laser beam interacts with aerosols, cloud droplets and other suspended particles in the atmosphere, the backscattered echo signal carries the Doppler frequency shift generated by the movement of the atmospheric wind field. The system adopts a coherent heterodyne detection scheme, which mixes the weak echo signal with the local oscillator laser signal in the photodetector, converts the optical signal into a measurable electrical signal through photoelectric conversion, effectively suppresses background noise, and greatly improves detection sensitivity and signal-to-noise ratio.

3. Wind Speed Calculation & Wind Field Retrieval The system calculates the radial wind speed of each detection distance gate in real time by demodulating the Doppler frequency shift of the echo signal, with a measurement accuracy up to 0.1m/s and a measurement range of -50~+50m/s. Combined with the high-precision angle information of the pan-tilt pointer (angular resolution ≤0.01°, pointing accuracy ≤0.1°), the system completes scanning detection of the target space, and inverts wind profile, wind direction, horizontal wind speed, vertical airflow and other meteorological parameters through a mature wind field inversion algorithm, finally reconstructing the complete 3D wind field data of the detection area.

4. System Control & Data Output The whole system is controlled by an embedded high-performance processor, which realizes synchronous control of laser emission, pan-tilt scanning, signal acquisition and data processing. It supports a variety of standard scanning modes (LOS fixed mode, DBS, VAD, PPI, RHI) and user-defined scanning modes, and can output rich wind field data products in real time to meet the needs of different application scenarios.

III. Product Applications and Functional Characteristics

•  Core Functional Characteristics

  (1) Compact Size & Lightweight Design The whole machine features a highly integrated compact structure, with overall dimensions of 380mm×380mm×638mm (maximum azimuth frame width) and a total weight of ≤40kg. It greatly reduces the requirements for installation space and load-bearing capacity, and is convenient for on-site deployment, transportation and installation.

  (2) All-weather Outdoor Operation Capability With industrial-grade rugged design, the pitch envelope reaches IP67 protection level, and the whole radar unit reaches IP66 protection level. It can adapt to harsh outdoor environments such as rain, snow, dust, and salt spray, and supports stable operation in the temperature range of -40℃~+60℃, capable of continuous long-term operation in all-weather outdoor scenarios.

  (3) Strong Environmental Adaptability & High Reliability The system adopts mature aerospace-grade components and highly integrated design, with strong anti-interference ability and environmental adaptability. It can withstand a maximum steady wind speed of 30m/s and a maximum gust wind speed of 50m/s, and can operate stably in complex and harsh meteorological and geographical environments, with low maintenance cost and high long-term operation reliability.

  (4) Wide Operating Temperature Range The system is designed for wide temperature adaptability, supporting normal operation in the temperature range of -40℃~+60℃, and can be stored in the temperature range of -45℃~+60℃, which fully meets the application needs of extreme cold, high temperature and other extreme climate regions.

  (5) High-precision & Long-distance Wind Measurement Performance Based on pulsed coherent Doppler detection technology, the system achieves a maximum detection distance of 10km (depending on weather conditions), with configurable range resolutions of 15/30/45/60m. The high-precision pan-tilt pointer ensures accurate and rapid scanning detection of the target wind field, meeting the demand for intelligent long-distance scanning wind measurement.

  (6) Flexible Scanning Modes & Rich Data Products The system supports a variety of standard scanning modes and allows users to customize scanning modes according to actual application needs. It can output a variety of wind field data products including radial wind speed, spectral width, spectral intensity, signal-to-noise ratio, horizontal wind speed, wind direction, vertical airflow, etc., meeting the diverse data needs of different industries.

Product Applications:

1. (1) Wind Power Industry

   Used for wind resource assessment, wind farm siting, wind turbine yaw control optimization, wake effect detection, wind power forecast and grid-connected power stability control. It provides accurate wind field data for wind turbines, improves power generation efficiency, reduces mechanical load, and extends the service life of wind turbines.

   (2) Meteorological Industry

   Used for atmospheric boundary layer observation, wind profile monitoring, severe weather (thunderstorms, gust fronts, tornadoes) early warning and monitoring, atmospheric pollution diffusion research, and meteorological support for major events. It provides high temporal and spatial resolution wind field data for meteorological forecasting and scientific research.

   (3) Civil Aviation Industry

   Used for airport low-level wind shear detection, runway wind field monitoring, takeoff and landing wind condition guarantee, and air route wind field observation. It provides early warning of dangerous wind conditions such as wind shear and gusts, ensures the safety of aircraft takeoff and landing, and improves airport operation efficiency.

   (4) Extended Application Scenarios

2. Photovoltaic Power Industry: Wind field monitoring for photovoltaic power plants, to optimize the operation of photovoltaic panels and power generation forecast.
3. Marine & Coastal Engineering: Offshore wind resource assessment, coastal wind field monitoring, and wind condition guarantee for offshore operations.
4. Traffic & Transportation: Wind field monitoring for high-speed railways, bridges, and tunnels, to ensure the safety of transportation operations.
5. Scientific Research: Atmospheric science research, wind engineering research, and wind field observation for national major scientific research projects.