Application of laser range finder in forestry industry
Uses of multifunctional laser measuring systems
(1) Distance measurement----distance measurement is the main function of this instrument, which can directly display horizontal distance or inclined distance.
(2) Azimuth ---- It can directly display the magnetic azimuth or relative azimuth of the measurement target.
(3) Inclination angle----can display the inclination angle (vertical angle) or the inclination percentage.
(4) Target coordinate program - the target program function is the so-called addressing or stake-fixing (stake-out) function in measurement, that is, input its coordinates (X, Y, Z) into the instrument at a known point, and align it with the measurement target Measurement can immediately display the coordinates of the measured position.
(5) Height measurement - use the triangulation principle (pitch, elevation angle and horizontal distance) to measure the height of objects, including tree heights, building heights, etc.
(6) Measuring function----This instrument has another special function program, which can directly enter the measuring function, carry out measuring work and automatically store azimuth, distance, inclination angle and other data, and can be input into the computer for calculation by PC software deal with.
(7) Navigation function--Because it has a magnetic flux compass, it can serve as a navigation function.
Discussion on Application of Multifunctional Laser Measuring System in Forestry
(1) Forest Land Measurement
Since the multi-functional laser measurement system combines laser distance measurement and electromagnetic digital compass, its distance measurement and angle measurement accuracy are much higher than those of compass and rope measurement. It is the best new instrument for forest land measurement.
According to the test, the advantages of the multifunctional laser measuring instrument applied to forest land measurement are:
1) The operation is simple, the measurement is locked very quickly and the precision is high. The instrument can automatically record data, computer transmission, no human error.
2) The digital instrument panel is automatically displayed, and there is no human error in visual interpretation.
3) Save manpower and time.
4) Attached with processing software, it can handle points, lines, wires and calculate closure difference, area, etc., and can be connected to a printer or plotter to directly draw measurement graphics.
(2) Combination of multifunctional laser measuring instrument and GPS
The introduction of multifunctional laser measuring instruments was mainly combined with GPS, that is, GPS cooperates with multifunctional laser measuring instruments for measurement in areas with restricted terrain.
application:
1) Banning and checking of illegal land reclamation
Combining laser measuring instruments with GPS, GIS and their software, and carrying out environmental monitoring with portable computers is currently the most popular research project in various academic institutions. In forestry, it is used for the banning and checking of illegal land reclamation. However, because GPS may be restricted by terrain, further research and testing are needed. In addition, it can also be combined with a digital camera to take pictures of violations and archive them for evidence of banning.
2) Land lease inspection
The combination of multi-functional laser measuring instrument and GPS to carry out land lease inspection is not only fast, but also has high accuracy. In addition, the digital map files can also be pre-entered into a portable computer and carried to the site for inventory and comparison work.
3) Inventory of security forests outside the area
At present, the inspection of security forests outside the bureau area uses electronic flat panel for inspection and pile placement. However, due to the lack of triangular points, the inventory work is often slow. If the centimeter-level GPS can be used to arrange points, and then the laser measuring instrument is used for surveying, and the target coordinate program function is used for pile placement, it should be able to speed up the inventory work and reduce the post-event map data work.
Compared with the traditional compass, the multi-functional laser measuring instrument has the advantages of high precision, no recording, no drawing, no pulling the measuring rope, no cutting grass, saving time and labor, computer processing, drawing, etc. After field testing and field operation, it is better than previous instruments Much more than that, worth promoting
