Transponders, transponder kits, method of applying transponders, and products containing transponders

Abstract

The invention concerns a transponder (10), kit and method for marking wood material, such as logs. The transponder comprises a rigid casing adapted to be inserted into the wood material by means of impact, the casing comprising a wedge-shaped first edge (12) adapted to penetrate into the wood material due to said impact, and a second edge (16) opposite to the first edge, the first and second edges (12, 16) defining an insertion direction of the transponder, and radio-frequency trans-ponding means (20) covered by the casing. According to the invention, the casing is elongated in a direction perpendicular to the insertion direction. The transponder is easily applicable into a log and stays well within the log.

Description

technical field [0001] The invention relates to a specially designed radio frequency transponder and a method for using the transponder in wooden materials, especially logs. Furthermore, the invention relates to an application kit and a log containing such a transponder. This transponder consists of a casing that can be inserted into a wooden material, and a radio frequency transponder covered by the casing. Background technique [0002] Tracking based on radio frequency identification (RFID) is becoming more and more common in many areas of trade and industry. While many industrial sectors already utilize traceability systems covering the product chain from the supply of raw materials to the finished product on the market, the forestry and timber sector is still in its infancy in the process, partly due to complex supply chain structures. The nature of the logging operation itself, the logistics of the forest industry, environmental factors, the needs of log users and the...

AI Technical Summary

Problems solved by technology

However, additional machining steps are not required as this would slow down the marking process, increase the complexity of the marking process and require expensive special tooling

Also, for example, the transponder may become loose during transport and fall from the log

On the other hand, a nailed transponder hammered into wood has the disadvantage that the antenna of the transponder is buried deep in the wood material, and the case of the transponder has to be made of a very hard and strong material

It has been found in practice that it is difficult to manufacture nail transponders that are strong enough to be driven directly into wood

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