Wireless testing system and method for controlling the same

• US 9,377,495 B2
• Filed: 01/22/2014
• Issued: 06/28/2016
• Est. Priority Date: 03/06/2013
• Status: Expired due to Fees

• Current Assignee: Lite-On Electronics Company Limited (Lite-On Technology Corporation), Lite-On Technology Corporation
• Original Assignee: Lite-On Electronics Company Limited (Lite-On Technology Corporation), Lite-On Technology Corporation
• Inventors: Chien, Yu-Kun, Hsiao, Ching-Wu
• Primary Examiner(s): Maung, Nay
• Assistant Examiner(s): Trandai, Cindy
• Application Number:
  US14/160,748
• Publication Number:
  US 20140256267A1
• Time in Patent Office: 888 Days
• US Class Current: 1/1
• CPC Class Codes: G01R 29/105 using anechoic chambers; Chambers or open field sites used therefor test sites used for measuring on other objects than aerials G01R29/0828; wave absorbing devices H01Q17/00
• CPC Class Codes: H04B 17/15 Performance testing
• CPC Class Codes: H04W 24/06 Testing, supervising or monitoring using simulated traffic

Abstract

A wireless testing system includes a main computer that controls a wireless module, a rotary mechanism, a measurement device, and an antenna. The rotary mechanism includes a rotatable seat controlled by the main computer to rotate about a first rotation axis,

• • a support arm disposed on the rotatable seat, and
  • a module rotating arm disposed on the support arm and positioning the wireless module at or in the vicinity of the first rotation axis. The module rotating arm is controlled by the main computer to rotate the wireless module about a second rotation axis. The antenna is substantially directed toward the wireless module. The measurement device is controlled by the main computer to control the antenna to receive or transmit a wireless signal.

Claims

1. A wireless testing system to be used with a room capable of electromagnetic radiation shielding for measuring a three dimensional radiation pattern of a wireless module that is placed in the room and that operates dependently, the room having a Cartesian coordinate in three dimensions consisting of a first axis, a second axis and a third axis that are mutually orthogonal, the wireless testing system comprising:

a main computer disposed outside the room and electrically coupled with the wireless module, the main computer being configured to control the wireless module to transmit or receive a wireless signal;

a rotary mechanism disposed in the room, said rotary mechanism being controlled by said main computer and including;

a rotatable seat having a first rotation axis extending in the direction of the third axis and controlled by the main computer to rotate about the first rotation axis,

a support arm disposed on the rotatable seat and extending in the direction of the third axis, and

a module rotating arm disposed on the support arm and spaced apart from the rotatable seat, the module rotating arm being configured to hold the wireless module and position the wireless module at or in the vicinity of the first rotation axis, and having a second rotation axis extending in the direction of the first axis, the module rotating arm being controlled by the main computer to rotate the wireless module about the second rotation axis;

an antenna disposed in the room in a manner that the antenna is substantially directed toward the wireless module;

a measurement device disposed outside the room, the measurement device being coupled to the main computer and the antenna, and being controlled by the main computer to control the antenna to receive or transmit the wireless signal;

a remote computer disposed in the room, the remote computer being electrically coupled with the main computer and with the wireless module, and being controlled by the main computer to control the wireless module to transmit or receive the wireless signal; and

a shield box disposed in the room to contain the remote computer therein and for shielding electromagnetic radiation from the remote computer.

2. The wireless testing system as claimed in claim 1, wherein the rotatable seat is controlled by the main computer to rotate on a first plane about the first rotation axis, and the antenna and the wireless module are disposed on a second plane substantially parallel to the first plane.

3. The wireless testing system as claimed in claim 1, wherein the measurement device is one of a wireless testing equipment and a golden sample of the wireless module.

4. The wireless testing system as claimed in claim 1, wherein the measurement device is one of a wireless testing equipment and a golden sample of the wireless module.

5. A method for controlling a wireless testing system to measure a three dimensional radiation pattern of a wireless module that operates dependently and that is placed in a room capable of electromagnetic radiation shielding, the wireless testing system including a main computer and a measurement device that are disposed outside the room, a rotary mechanism and an antenna that are disposed inside the room, and a remote computer that is disposed in the room and that is contained in a shield box for shielding electromagnetic radiation from the remote computer, the rotary mechanism being controlled by the main computer and including a rotatable seat, a support arm disposed on the rotatable seat, and a module rotating arm disposed on the support arm and having the wireless module positioned thereon, the antenna being directed toward the wireless module on the module rotating arm and being coupled to the main computer via the measurement device and the main computer, the method comprising:

(A) controlling the remote computer, using the main computer, to control the wireless module to transmit a wireless signal, and subsequently receiving, by the main computer, the wireless signal via the antenna and the measurement device;

(B) controlling the module rotating arm, using the main computer, to rotate the wireless module a second predetermined angle about a second rotation axis of the module rotating arm;

(C) repeating steps (A) and (B) until an accumulated angular rotation of the wireless module corresponds to a predetermined second angle limit;

(D) controlling the rotatable seat, using the main computer, to rotate the rotatable seat a first predetermined angle about a first rotation axis of the rotatable seat; and

(E) repeating steps (A) to (D) until an accumulated angle of rotation of the rotatable seat corresponds to a predetermined first angle limit.

6. The method as claimed in claim 5, wherein, in step (A), power and frequency of the wireless signal transmitted by the wireless module are set using the main computer.

7. The method as claimed in claim 6, wherein the measurement device is one of a wireless testing equipment and a golden sample of the wireless module.

8. The method as claimed in claim 5, wherein the measurement device is one of a wireless testing equipment and a golden sample of the wireless module.

9. A method for controlling a wireless testing system to measure a three dimensional radiation pattern of a wireless module that operates dependently and that is placed in a room capable of electromagnetic radiation shielding, the wireless testing system including a main computer and a measurement device that are disposed outside the room, a rotary mechanism and an antenna that are disposed inside the room, and a remote computer that is disposed in the room and that is contained in a shield box for shielding electromagnetic radiation from the remote computer, the rotary mechanism being controlled by the main computer and including a rotatable seat, a support arm disposed on the rotatable seat, and a module rotating arm disposed on the support arm and having the wireless module positioned thereon, the antenna being directed toward the wireless module on the module rotating arm and being coupled to the main computer via the measurement device and the main computer, the method comprising the following steps:

(A) controlling the measurement device, using the main computer, to transmit a wireless signal via the antenna, and subsequently controlling the remote computer, by the main computer, to control the wireless module to receive the wireless signal;

(B) controlling the module rotating arm, using the main computer, to rotate the wireless module a second predetermined angle about a second rotation axis of the module rotating arm;

(C) repeating steps (A) and (B) until an accumulated angular rotation of the wireless module corresponds to a predetermined second angle limit;

(D) controlling the rotatable seat, using the main computer, to rotate the rotatable seat a first predetermined angle about a first rotation axis of the rotatable seat; and

(E) repeating steps (A) to (D) until an accumulated angle of rotation of the rotatable seat corresponds to a predetermined first angle limit.

10. The method as claimed in claim 9, wherein, in step (A), frequency, power and number of packets of the wireless signal transmitted via the antenna are set using the main computer.

11. The method as claimed in claim 9, wherein the measurement device is one of a wireless testing equipment and a golden sample of the wireless module.

12. The method as claimed in claim 9, wherein the measurement device is one of a wireless testing equipment and a golden sample of the wireless module.