Radio frequency shielded robotic telecommunication device testing platform

Patent metadata

Field	Value
Publication number	US-9774409-B1
Application number	US-201615239705-A
Country	US
Kind code	B1
Filing date	Aug 17, 2016
Priority date	Aug 17, 2016
Publication date	Sep 26, 2017
Grant date	Sep 26, 2017

Abstract

An RF shield for enclosing a robotic tester unit while testing mobile devices. In some embodiments, the RF shield includes at least two conductive RF shield layers separated by an insulator material. In some embodiments, an inner surface of the RF shield is further lined with a RF absorbing material to absorb EM radiation generated within the RF Shield enclosure. In some embodiments, the internal components required for testing, e.g. the robot, are powered via a power conditioner that removes from the power source frequencies above a threshold, e.g. 100 Hz, to eliminate RF signals absorbed into the power lines via radio towers and/or intentionally induced into the power lines to control power equipment.

First claim

What is claimed is:

1. A radio frequency (RF) shielded robotic testing system comprising:
an RF-shielded enclosure to shield a telecommunications device that is within an interior region of the RF-shielded enclosure from ambient RF energy propagating through an exterior region that is outside of the RF-shielded enclosure;
a robot positioned within the interior region of the RF-shielded enclosure, the robot to move a tip that is configured to engage a touch screen of the telecommunications device thereby providing, to the telecommunications device, a plurality of testing inputs associated with performing a testing protocol to validate one or more functionalities of the telecommunications device;
an RF antenna positioned within the interior region of the RF-shielded enclosure, the RF antenna to enable wireless communication with the telecommunication device during the testing protocol;
at least one controller to control movement of the tip with respect to the touch screen, the movement of the tip simulating, within the interior region of the RF-shielded enclosure, user interactions with the touch screen to cause the telecommunications device to perform the one or more functionalities; and
a power conditioner to receive electromagnetic (EM) energy from a power source, the EM-energy including at least power transmission frequencies and communications frequencies, the power conditioner to transmit the power transmission frequencies from the exterior region to the interior region of the RF-shielded enclosure and to prevent transmission of the communications frequencies from the exterior region to the interior region of the RF-shielded enclosure.

2. The RF-shielded robotic testing system of claim 1 , wherein the communications frequencies include Power Line Communication (PLC) data signals, or absorbed RF-energy that is initially generated by a radio base station and absorbed by a power transmission line, or both.

3. The RF-shielded robotic testing system of claim 1 , wherein the power conditioner is configured to filter high-frequency energy that is above a predetermined threshold out of the EM-energy and to transmit low-frequency energy that is below the predetermined threshold to the interior region of the RF-shielded enclosure.

4. The RF-shielded robotic testing system of claim 1 , further comprising at least one camera positioned within the interior region of the RF-shielded enclosure, the at least one camera to record imagery rendered, by the telecommunications device, in response to the plurality of testing inputs.

5. The RF-shielded robotic testing system of claim 4 , further comprising at least one display positioned at the exterior region, the at least one display to display a substantially live imagery feed received from the at least one camera during the performing the testing protocol.

6. The RF-shielded robotic testing system of claim 1 , wherein the at least one controller comprises at least an actuation controller that is positioned within the interior region of the RF-shielded enclosure and a user terminal that is positioned at the external region, and wherein the actuation controller and the user terminal are communicatively coupled by a communication channel that passes from the exterior region to the interior region, and wherein the communication channel includes at least one of an optical fiber, a wireless link between the RF antenna and the actuation controller, or a conductive wire.

7. The RF-shielded robotic testing system of claim 1 , wherein at least a portion of the at least one controller is positioned within a first sub-region of the interior region of the RF-shielded enclosure, and wherein the robot is positioned within a second sub-region of the interior region of the RF-shielded enclosure, and wherein the first sub-region is at least partially lined with an RF absorbing material.

8. A method comprising:
placing a telecommunications device at a testing location that is adjacent to a robot positioned within an interior region of an RF-shielded enclosure, the robot configured to move at least one tip into contact with a touch screen of the telecommunications device;
enclosing the telecommunication device and the robot within the RF-shielded enclosure to shield the telecommunication device from ambient RF energy propagating through an exterior region that is outside of the RF-shielded enclosure;
determining a testing protocol that includes at least instructions to cause the robot to move the least one tip into contact with the touch screen to provide the telecommunications device with a plurality of testing inputs associated with the testing protocol; and
while the telecommunications device and the robot are enclosed within the RF-shielded enclosure, causing the robot to execute the instructions to move the least one tip into contact with the touch screen to provide the plurality of testing inputs, thereby simulating user interactions with the touch screen of the telecommunications device,
wherein the enclosing includes receiving into the RF-shielded enclosure, through a power conditioner, power transmission frequencies, the power conditioner preventing transmission of communication frequencies into the RF-shielded enclosure.

9. The method as recited in claim 8 , wherein the causing the robot to execute the instructions includes transmitting the instructions from a user terminal at the exterior region to at least one of the robot or an actuation controller that is positioned within the interior region of the RF-shielded enclosure.

10. The method as recited in claim 8 , wherein the causing the robot to execute the instructions includes transmitting, to at least one of the robot or an actuation controller that is positioned within the interior region of the RF-shielded enclosure, at least one optical signal through an optical fiber that passes from the exterior region to the interior region.

11. The method as recited in claim 10 , wherein the causing the robot to execute the instructions further includes converting, by at least one of the robot or the actuation controller within the interior region of the RF-shielded enclosure, the at least one optical signal into a corresponding electrical signal to control a performance of the testing protocol.

12. The method as recited in claim 8 , further comprising receiving, from a camera that is mounted within the interior region of the RF-shielded enclosure, imagery rendered by the telecommunication device during the simulating the user interactions.

13. The method as recited in claim 12 , further comprising:
transmitting an imagery feed from the camera that is mounted within the interior region of the RF-shielded enclosure to a display that is positioned at the exterior region; and
displaying the imagery feed on the display while the testing protocol is being performed within the RF-shielded enclosure.

14. The method as recited in claim 8 , further comprising:
receiving, at the exterior region, electromagnetic (EM) energy from a power source;
based on a first portion of the EM-energy being within a power transmission frequency range, transmitting the first portion of the EM-energy to at least one of the robot or an actuation controller that is positioned within the interior region of the RF-shielded enclosure; and
based on a second portion of the EM-energy being outside the power transmission frequency range, preventing the second portion of the EM-energy from entering the interior region of the RF-shielded enclosure.

15. The method as recited in claim 8 , further comprising:
in response to determining that a door of the RF-shielded enclosure is opened

Assignees

• T Mobile Usa Inc

Inventors

• Lee Bobby
• Jenkinson David Ross

Classifications

• G01R29/0821

  rooms and test sites therefor, e.g. anechoic chambers, open field sites or TEM cells (for testing antennas G01R29/105) · CPC title

• H04N7/183

  for receiving images from a single remote source · CPC title

• H04B17/30 Primary

  of propagation channels · CPC title

• H04N21/2187

  Live feed · CPC title

• H05K9/0069 Primary

  Methods for measuring the shielding efficiency; Apparatus therefor; Isolation container for testing · CPC title