Laser Ranging Device Wireless Power and Data Transmission
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Laser rangefinders in prior art suffer from short service life and large volume due to the use of slip rings for power supply and signal transmission, as well as belt or gear transmission modes for rotating parts, leading to mechanical wear and failure.
Innovation Solution
A laser ranging device incorporating a laser transceiving apparatus, a rotation apparatus driven by electromagnetic induction, and a power supply control apparatus that wirelessly supplies power and transmits data through photoelectric conversion, eliminating mechanical contact and improving service life and reducing size.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If slip rings are used to transfer electrical energy and signals to rotating parts, then power supply and communication are achieved, but service life is reduced due to mechanical wear
Solution Approach 1:
The patent replaces the mechanical slip ring transmission system with an electromagnetic induction system. A stator coil generates a rotating magnetic field that induces current in a rotor coil, which then interacts with a permanent magnet to produce rotational motion. This electromagnetic substitution eliminates mechanical contact and wear, dramatically extending service life while maintaining the ability to power and control rotating components.
2Volume of moving object
If belt or gear transmission modes are used to rotate the transceiving apparatus, then rotation is achieved, but volume increases and mechanical wear occurs
Solution Approach 1:
The patent replaces belt and gear mechanical transmission systems with direct electromagnetic drive. The electromagnetic induction system directly rotates the transceiving apparatus without intermediate mechanical transmission components, reducing device volume and eliminating mechanical wear while maintaining reliable rotation functionality.
3Measurement precision
If TOF laser radar ranging is used, then accurate distance measurement is achieved, but device volume and cost increase due to complex opto-electromechanical components
Solution Approach 1:
The patent replaces complex opto-electromechanical TOF laser radar components with a simplified electromagnetic induction system combined with laser transceiving. The electromagnetic system provides precise rotational positioning without mechanical complexity, while the laser transceiving apparatus performs distance measurement, achieving accurate ranging with reduced device volume and cost.
Applied Scientific Principles
This section explains which scientific principles are used to turn an abstract innovation direction into a practical engineering solution.
Function Achieved in This Case
The solution extends the service life of the laser ranging device, reduces its volume, and enhances light utilization by avoiding reflectivity and angle offset issues, while enabling full duplex wireless data transmission and reducing noise.
Implementation Method 1
The stator coil acquires an alternating current provided by the power supply control apparatus to drive the rotor to rotate by electromagnetic induction transmission
Implementation Method 2
A photoelectric component receives the laser beam reflected from the target. A timer measures the time from emission to reception of the laser beam
Data Source
AI summary
A laser ranging device includes a laser transceiving apparatus, a rotation apparatus, and a power supply control apparatus. The laser transceiving apparatus is used for transmitting a projection beam to a target to be measured and receiving a reflection beam reflected by the target to be measured. As there are no problems of the reflectivity of the reflector itself and the angle offset of the reflection beam, the light utilization is effectively improved. The rotation apparatus drives the laser transceiving apparatus to rotate by electromagnetic induction transmission, making the laser ranging device smaller in size. The power supply control apparatus supplies power to the rotation apparatus, increasing the service life of the laser ranging device, and the power supply control apparatus transmit data with the laser transceiving apparatus through photoelectric conversion.