Pattern recognition methods to identify component faults

• US 10,089,856 B1
• Filed: 05/19/2017
• Issued: 10/02/2018
• Est. Priority Date: 05/19/2017
• Status: Active Grant

• Current Assignee: Motorola Solutions, Inc.
• Original Assignee: Motorola Solutions, Inc.
• Inventors: Zong, Jimmy Sixuan
• Primary Examiner(s): Kim, Kevin
• Application Number:
  US15/600,098
• Time in Patent Office: 501 Days
• Field of Search: 340635, 340657, 340660, 340661, 340664
• CPC Class Codes: A61B 2560/0271 using a remote monitoring unit
• CPC Class Codes: A61B 2560/0276 Determining malfunction
• CPC Class Codes: G01R 31/28 Testing of electronic circuits, e.g. by signal tracer EMC, EMP or similar testing of electronic circuits G01R31/002; testing for short-circuits, discontinuities, leakage or incorrect line connection G01R31/50; checking computers or computer components G06F11/00; checking static stores for correct operation G11C29/00 ; testing receivers or transmitters of transmission systems H04B17/00
• CPC Class Codes: G01R 31/2822 of microwave or radiofrequency circuits of attenuation, gain, e.g. using network analyzers G01R27/28
• CPC Class Codes: G01R 31/2843 In-circuit-testing

Abstract

A communication device including an electrical component, a sensor, and an electronic processor. The sensor is coupled to the electrical component and is configured to sense an electrical characteristic of the electrical component. The electronic processor is configured to receive, from the sensor, a series of measurements corresponding to the electrical characteristic and determine, from the series of measurements, a first electrical characteristic profile. The electronic processor is further configured to compare the first electrical characteristic profile to a predetermined electrical characteristic profile to generate a comparison and generate an indication of a possible loose connection based on the comparison.

Claims

1. A communication device comprising:

an electrical component;

a sensor coupled to the electrical component and configured to sense an electrical characteristic of the electrical component; and

an electronic processor connected to the sensor and configured to;

receive, from the sensor, a series of measurements corresponding to the electrical characteristic;

determine, from the series of measurements, a first electrical characteristic profile;

compare the first electrical characteristic profile to a predetermined electrical characteristic profile to generate a comparison;

generate an indication of a possible component fault based on the comparison; and

compare the first electrical characteristic profile to a plurality of predetermined electrical characteristic profiles to determine a location of the possible component fault.

2. The communication device of claim 1, wherein the predetermined electrical characteristic profile is based on at least one selected from the group consisting of a predetermined ideal profile based on one or more ideal electrical characteristics, a series of measurements made during normal operation of the communication device, a predetermined electrical characteristic pattern indicative of a component fault within the communication device, and a series of measurements made during a simulation of a component fault within the communication device.

3. The communication device of claim 1, wherein the electrical characteristic is a current or a voltage.

4. The communication device of claim 1, further comprising an antenna and wherein the electrical component is a transmitter coupled to the antenna via a transmission line.

5. The communication device of claim 1, wherein the electronic processor is further configured to receive, from the sensor, the series of measurements corresponding to the electrical characteristic by sampling a reverse voltage.

6. The communication device of claim 1, wherein the electronic processor compares the first electrical characteristic profile to the predetermined electrical characteristic profile using a pattern recognition process and generates the indication based on a result of the pattern recognition process.

7. The communication device of claim 6, wherein the pattern recognition process includes determining a Hamming distance.

8. The communication device of claim 1, wherein the indication of the possible component fault is at least one selected from a group consisting of a visual signal for presentation on a display, an audio signal, and an error signal for recordation in a log in the communication device.

9. The communication device of claim 1, wherein the indication is an error signal and the electronic processor is further configured to send the error signal to an error log.

10. The communication device of claim 1, wherein the electronic processor is further configured to receive, from the sensor, the series of measurements corresponding to the electrical characteristic by sampling a current from a power amplifier current sensor.

11. The communication device of claim 1, wherein the electronic processor is further configured to:

create a history based on the series of measurements when a button of the communication device is keyed; and

determine the first electrical characteristic profile based on the history.

12. A method for operating a communication device, the method comprising:

receiving, from a sensor, a series of measurements corresponding to an electrical characteristic;

determining, from the series of measurements, a first electrical characteristic profile;

comparing the first electrical characteristic profile to a predetermined electrical characteristic profile, generating a comparison;

generating an indication of a possible component fault based on the comparison; and

comparing the first electrical characteristic profile to a plurality of predetermined electrical characteristic profiles to determine a location of the possible component fault.

13. The method of claim 12, wherein the predetermined electrical characteristic profile is based on at least one selected from the group consisting of a predetermined ideal profile based on one or more ideal electrical characteristics, a series of measurements made during normal operation of the communication device, a predetermined electrical characteristic pattern indicative of a component fault within the communication device, and a third series of measurements made during a simulation of a component fault within the communication device.

14. The method of claim 12, wherein the electrical characteristic is a current or a voltage.

15. The method of claim 12, wherein the series of measurements corresponding to the electrical characteristic is obtained by sampling a reverse voltage or a current from a power amplifier current sensor.

16. The method of claim 12, further comprising comparing the first electrical characteristic profile to the predetermined electrical characteristic profile using a pattern recognition process and generating the indication based on a result of the pattern recognition process.

17. The method of claim 12 further comprising:

creating a history based on the series of measurements when a button of the communication device is keyed; and

determining the first electrical characteristic profile based on the history.

18. A portable radio communication device comprising:

an antenna;

a transmitter coupled to the antenna via a transmission line;

a sensor coupled to the transmission line and configured to sense an electrical characteristic of the transmission line;

an electronic processor connected to the sensor and configured to;

receive, from the sensor, a series of measurements corresponding to the electrical characteristic;

determine, from the series of measurements, a first electrical characteristic profile;

compare the first electrical characteristic profile to a predetermined electrical characteristic profile to generate a comparison;

generate an indication of a possible component fault based on the comparison; and

compare the first electrical characteristic profile to a plurality of predetermined electrical characteristic profiles to determine a location of the possible component fault.

19. A communication device comprising:

an electrical component;

a sensor coupled to the electrical component and configured to sense an electrical characteristic of the electrical component; and

an electronic processor connected to the sensor and configured to;

receive, from the sensor, a series of measurements corresponding to the electrical characteristic;

determine, from the series of measurements, a first electrical characteristic profile;

compare the first electrical characteristic profile to a predetermined electrical characteristic profile to generate a comparison;

generate an indication of a possible component fault based on the comparison; and

an antenna and wherein the electrical component is a transmitter coupled to the antenna via a transmission line.

20. A communication device comprising:

an electrical component;

a sensor coupled to the electrical component and configured to sense an electrical characteristic of the electrical component; and

an electronic processor connected to the sensor and configured to;

receive, from the sensor, a series of measurements corresponding to the electrical characteristic;

determine, from the series of measurements, a first electrical characteristic profile;

compare the first electrical characteristic profile to a predetermined electrical characteristic profile to generate a comparison;

generate an indication of a possible component fault based on the comparison; and

wherein the electronic processor is further configured to receive, from the sensor, the series of measurements corresponding to the electrical characteristic by sampling a reverse voltage or sampling a current from a power amplifier current sensor.

21. A communication device comprising:

an electrical component;

a sensor coupled to the electrical component and configured to sense an electrical characteristic of the electrical component; and

an electronic processor connected to the sensor and configured to;

receive, from the sensor, a series of measurements corresponding to the electrical characteristic;

determine, from the series of measurements, a first electrical characteristic profile;

compare the first electrical characteristic profile to a predetermined electrical characteristic profile to generate a comparison;

generate an indication of a possible component fault based on the comparison;

create a history based on the series of measurements when a button of the communication device is keyed; and

determine the first electrical characteristic profile based on the history.

22. A method for operating a communication device, the method comprising:

receiving, from a sensor, a series of measurements corresponding to an electrical characteristic;

determining, from the series of measurements, a first electrical characteristic profile;

comparing the first electrical characteristic profile to a predetermined electrical characteristic profile, generating a comparison;

generating an indication of a possible component fault based on the comparison; and

wherein the series of measurements corresponding to the electrical characteristic is obtained by sampling a reverse voltage or a current from a power amplifier current sensor.

23. A method for operating a communication device, the method comprising:

receiving, from a sensor, a series of measurements corresponding to an electrical characteristic;

determining, from the series of measurements, a first electrical characteristic profile;

comparing the first electrical characteristic profile to a predetermined electrical characteristic profile, generating a comparison;

generating an indication of a possible component fault based on the comparison;

creating a history based on the series of measurements when a button of the communication device is keyed; and

determining the first electrical characteristic profile based on the history.