Indoor positioning system concept (Electrical engineer required)
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Description
Experience Level: Expert
Concept is to design an indoor positioning system for robotic guidance.
Time of Flight distance measurement is a method used to determine distance between two nodes. a signal is send from one node (a robot for instance) and the time taken for the distance to travel between the robot and a second node (a stationary known point) is known from the time taken to travel between the two nodes. However when attempting to measure the distance between two nodes using RF waves the time delta can be extremely small and the time synchronisation between the nodes can become vital as well - requiring specialist equipment to maintain.
My idea is to have a node on the robot which will transmit a signal
instead of trying hard to maintain synchronisation between the moving and stationary node have the moving node (robot) emit a signal and the stationery node reflect the signal at a different frequency. the time delta between the two signals will be composed of two parts 1. the time taken for the signal to travel from the robot to the stationary robot and back. 2. the processing time from the stationary node. in theory the processing time from the stationary node should be constant and the differences between any two different time measurement should only vary with distance between the two nodes.
I am searching for someone who will be able to advise of the viability of such a project and design the circuitry.
The basic spec for such a system will be as such
Range: 1-100m
Accuracy: +/- 1cm
one node is the current spec - subsequently it will be necessary to add multiple nodes for location triangulation.
Please get in touch if you require more information or think you are suitable for this project
Time of Flight distance measurement is a method used to determine distance between two nodes. a signal is send from one node (a robot for instance) and the time taken for the distance to travel between the robot and a second node (a stationary known point) is known from the time taken to travel between the two nodes. However when attempting to measure the distance between two nodes using RF waves the time delta can be extremely small and the time synchronisation between the nodes can become vital as well - requiring specialist equipment to maintain.
My idea is to have a node on the robot which will transmit a signal
instead of trying hard to maintain synchronisation between the moving and stationary node have the moving node (robot) emit a signal and the stationery node reflect the signal at a different frequency. the time delta between the two signals will be composed of two parts 1. the time taken for the signal to travel from the robot to the stationary robot and back. 2. the processing time from the stationary node. in theory the processing time from the stationary node should be constant and the differences between any two different time measurement should only vary with distance between the two nodes.
I am searching for someone who will be able to advise of the viability of such a project and design the circuitry.
The basic spec for such a system will be as such
Range: 1-100m
Accuracy: +/- 1cm
one node is the current spec - subsequently it will be necessary to add multiple nodes for location triangulation.
Please get in touch if you require more information or think you are suitable for this project
William H.
0% (0)Projects Completed
3
Freelancers worked with
3
Projects awarded
25%
Last project
23 Jan 2023
United Kingdom
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