• Česky
  • Contacts
  • Faculties and other parts
    Czech University of Life Sciences Prague
    Faculties and institute
    • Faculty of Economics and Management
    • Faculty of Agrobiology, Food and Natural Resources
    • Faculty of Engineering
    • Faculty of Environmental Sciences
    • Faculty of Forestry and Wood Sciences
    • Faculty of Tropical AgriSciences
    • Institute of Education and Counselling
    Other parts & departments
    • Library
    • Department of Physical Education (KTV)
    • Division of information and communication technologies
    • Accommodation & Meals
    • CZU Farm Estates
    • CZU Forests
    • CZU Winery
Facebook Youtube Instagram
Faculty of Forestry and Wood Sciences
  • About Faculty
  • Departments
  • Study
  • Science & Research
    • Research profile
    • Staff outputs
    • Conferences
    • Doctoral Study
    • Documents
    • Internal grants
    • Academic Qualifications
  • International Relations
  • Projects and partnerships
  • About Faculty  
    • Faculty Management
    • Faculty Authorities
    • Academic Senate
    • Official documents
    • Faculty activities
  • Departments  
    • Departments and excellent teams
    • Faculty units
  • Study  
    • Study at FLD
    • Study Now
    • Information for Students
    • Study Documents
    • Admission Procedures
    • Study Administration Office
  • Science & Research  
    • Research profile
    • Staff outputs
    • Conferences
    • Doctoral Study
    • Documents
    • Internal grants
    • Academic Qualifications
  • International Relations  
    • General information
    • International cooperation
    • International mobility – Erasmus+
    • Study Programmes in English
    • Documents & forms
  • Projects and partnerships  
    • Department for Development
    • Projects
    • Cooperation with schools
    • Applied outputs
    • Partnership
  1. FLD
  2. Science & Research
  3. Staff outputs
  4. Popularization of Science
  5. Smile, forwarder, the birdie flies…

Smile, forwarder, the birdie flies…

Our younger generation works with the photographic concept of time – lapse primarily for the purpose of entertainment. According to a study of the environment of the Faculty of Forestry and Wood Sciences, CULS, it can also be used in the field of timber harvesting, specifically in measuring the load of forwarders.

There is no doubt that in the world production of wood, the maximum use of technical means, such as forwarders, is key. In the Czech Republic they are daily, either when harvesting in the so-called harvester knot (29-38% of the total volume of harvested wood – data from 2019), or to export wood after harvesting with a chainsaw. 

The measurement of the wood itself – the load of the forwarder in our case – is undergoing very noticeable changes. From the manual measurement of games at the transport point, we switched to the use of a smartphone with an application with which it is enough to aim at a pile from a certain distance at a pile of wood or a forwarder, and it is measured. The customer can also use the function of measuring the weight of the load on the forwarder, but this is difficult because of estimation of the density of wood and subsequent conversion to volume in cubic meters. For this study, our researchers chose a relatively little-studied method, the so-called photogrammetric method, which has its advantages in relative accuracy and, above all, in price and technical affordability. 

The John Deere 1110D forwarder from the School Forest Enterprise in Kostelec nad Černými lesy, CULS in Prague was used in the research, and mainly Norway spruce (Picea abies) or Scots pine (Pinus sylvestris) as a load. wo cameras (LAMAX X10.1) with a time-lapse photograph of three seconds were used for the measurements. The cameras were placed in the cab and aimed at the fronts of the assortment cut-outs on the forwarder. For comparison, a manual measurement of the load was performed.      

During the research, the researchers also encountered minor problems, such as the low battery life of the cameras, which they solved using an external power bank. Despite this, they found a relatively large difference in measurements with this method, compared to the manual one. During manual measurement, the height was overestimated by 5 cm.

Thanks to researchers from our faculty, we know that it is definitely worth exploring these progressive methods. However, it is already possible to reduce measurement inaccuracy and make forestry work easier. Good luck to the forest and modern technology! 

Nuhlíček , Ondřej & Slavík, Martin & Dvořák, Jiří. (2020). 2D Photogrammetry as a Forwarder Load Measurement Technique . Forests . 11. 10.3390 / f11090962.

 

doc. Ing. Jiří Dvořák, Ph.D.

Associate Professor Dvořák graduated from the Forestry School in Žlutice then Forest Engineering at the current CULS in Prague. He now works at the Department of Forestry Technologies and Constructions. He has operational experiences and deals with topics related to logging.  

 

Prepared by Václav Kinský

Faculties and Other Parts

  • Faculty of Economics and Management
  • Faculty of Agrobiology, Food and Natural Resources
  • Faculty of Engineering
  • Faculty of Environmental Sciences
  • Faculty of Forestry and Wood Sciences
  • Faculty of Tropical AgriSciences
  • Institute of Education and Counselling
  • Department of Physical Education
  • Library
  • Halls of Residence & Refectory
  • Department of Information and Communication Technologies

Links

  • Study Applicants
  • Students
  • Alumni
  • Partners
  • Public

Contact Information

Czech University of Life Sciences Prague (CZU)
Kamýcká 129
165 00 Praha - Suchdol
Czech Republic
VAT number: CZ60460709
Tel.: +420 224 381 111
GPS coordinates: 50,129976, 14,373707
 

PIC: 999912570
OID: E10209207
DUNS: 360576495


Information presented on this server may only be published upon explicit agreement from CZU Prague.
Information on CZU Processing and Protection of Personal Data.
© 2024 Czech University of Life Sciences Prague
All rights reserved

English ☰ Menu

We use cookies on the web presentations of the Czech University of Life Sciences Prague (under the czu.cz domain). These files give us ways to serve our services better and help us analyze site performance. We can share information about how you use our sites with our social media, advertising, and analytics partners. In the settings, you can choose which cookies we can use. You can change or revoke your consent at any time.

Cookie settings customization
We use cookies on the web presentations of the Czech University of Life Sciences Prague (under the czu.cz domain). These files give us ways to serve our services better and help us analyze site performance. We can share information about how you use our sites with our social media, advertising, and analytics partners. In the settings, you can choose which cookies we can use. You can change or revoke your consent at any time.
Essential cookies
These cookies are essential for the proper functioning of the website. They ensure the correct display, submission of forms, and without these cookies, we cannot provide you with services on our website.
Analytical and statistical cookies
We use this type of cookies to evaluate the traffic and performance of web presentations, e.g., how many people visit the presentation, in what frequency, what information you are looking for, which you do not find and which information is most important. Based on this data, we can improve the content and thus improve the services and information we offer.
Advertising cookies
Our partners use advertising cookies to display relevant advertising based on your preferences.