Sensor virtualization through cloud storage and retrieval mechanisms

• US 10,372,473 B2
• Filed: 04/04/2016
• Issued: 08/06/2019
• Est. Priority Date: 07/18/2012
• Status: Active Grant

• Current Assignee: International Business Machines Corporation
• Original Assignee: International Business Machines Corporation
• Inventors: Blount, Marion L., Feridun, Metin, McIntosh, Suzanne K., Mohomed, Iqbal I., Nidd, Michael E., Tanner, Axel, Yang, Bo
• Primary Examiner(s): Ishizuka, Yoshihisa
• Application Number:
  US15/089,761
• Publication Number:
  US 20160216999A1
• Time in Patent Office: 1,219 Days
• CPC Class Codes: G01D 18/00 Testing or calibrating apparatus or arrangements provided for in groups G01D1/00 - G01D15/00
• CPC Class Codes: G05B 19/406 characterised by monitoring or safety G05B19/19 takes precedence
• CPC Class Codes: G05B 2219/37537 Virtual sensor
• CPC Class Codes: G05B 23/0221 Preprocessing measurements, e.g. data collection rate adjustment; Standardization of measurements; Time series or signal analysis, e.g. frequency analysis or wavelets; Trustworthiness of measurements; Indexes therefor; Measurements using easily measured parameters to estimate parameters difficult to measure; Virtual sensor creation; De-noising; Sensor fusion; Unconventional preprocessing inherently present in specific fault detection methods like PCA-based methods
• CPC Class Codes: G06F 9/45558 Hypervisor-specific management and integration aspects

Abstract

Mechanisms are provided for virtualizing physical sensors and providing sensor data to a requestor using the virtualized physical sensors. The mechanisms obtain sensor data from a plurality of physical sensors and storing the sensor data in a virtual sensor storage system of the data processing system in at least one standardized format. A request from a requestor for a first type of sensor data is received which does not specify a particular physical sensor. A portion of the sensor data stored in the virtual sensor storage system is retrieved in response to receiving the request, the portion of sensor data corresponding to the type of sensor data requested in the request from the requestor. The retrieved portion of the sensor data is returned to the requestor in a format corresponding to a physical sensor configured to provide the requested type of sensor data.

Claims

1. A method, in a data processing system, for virtualizing physical sensors and providing sensor data to a requestor using the virtualized physical sensors, the method comprising:

obtaining, in the data processing system, sensor data from a plurality of physical sensors;

storing the sensor data in a virtual sensor storage system of the data processing system in at least one standardized format;

receiving, in the virtual sensor storage system, a request from a requestor for a first type of sensor data, wherein the request does not specify a particular physical sensor;

retrieving, by the virtual sensor storage system, a portion of the sensor data stored in the virtual sensor storage system in response to receiving the request, wherein the portion of sensor data corresponds to the type of sensor data requested in the request from the requestor; and

returning, by the virtual sensor storage system, the retrieved portion of the sensor data to the requestor in a format corresponding to a physical sensor configured to provide the requested type of sensor data, wherein the sensor data is obtained via one or more standardized application programming interfaces (APIs) with which the plurality of physical sensors communicate and which communicate data to the virtual sensor storage system, and wherein the one or more standardized APIs comprises at least one first standardized API for communication with a first type of physical sensor in the plurality of physical sensors, and at least one second standardized API for communication with a second type of physical sensor in the plurality of physical sensors, the first type of physical sensor being different than the second type of physical sensor, and the at least one first standardized API is different from the at least one second standardized API.

2. The method of claim 1, wherein the virtual sensor storage system comprises a cloud based storage system comprising a plurality of storage devices coupled to one another via at least one network and represented as a single virtual sensor storage system to the requestor requesting sensor data from the virtual sensor storage system.

3. The method of claim 1, wherein the plurality of physical sensors comprise a plurality of physical sensors of different types associated with different data processing devices and which sense different types of sensor data.

4. The method of claim 1, further comprising:

comparing sensor data from a subset of physical sensors in the plurality of physical sensors whose sensor data overlaps; and

identifying if there is a faulty physical sensor in the subset of physical sensors based on results of the comparison.

5. The method of claim 1, wherein retrieving a portion of the sensor data stored in the virtual sensor storage system in response to receiving the request further comprises:

determining if there is a constraint associated with the portion of the sensor data, wherein the constraint specifies a limitation on which requestors may be provided the portion of the sensor data;

determining if the requestor satisfies a condition of the constraint; and

retrieving the portion of the sensor data only in response to the requestor not satisfying a condition of the constraint.

6. The method of claim 1, wherein retrieving a portion of the sensor data stored in the virtual sensor storage system in response to receiving the request comprises:

retrieving sensor data obtained from more than one physical sensor in the plurality of physical sensors based on the type of sensor data requested in the request and criteria specified in the request; and

combining the sensor data from the more than one physical sensor into a single resultant set of sensor data representing a sensor output of a single virtual sensor, and wherein returning the retrieved portion of the sensor data to the requestor comprises returning the single resultant set of sensor data to the requestor as the sensor output of the single virtual sensor.

7. The method of claim 1, wherein the sensor data is obtained by identifying a constraint associated with a subset of the sensor data as specified by a supplier of the subset of the sensor data, and wherein the sensor data is stored in the virtual sensor storage system at least by storing an identification of the constraint in association with the subset of the sensor data in the virtual sensor storage system, wherein the constraint specifies a limitation as to which requestors may be provided the associated subset of the sensor data.

8. A computer program product comprising a non-transitory computer readable storage medium having a computer readable program stored therein, wherein the computer readable program, when executed on a data processing system, causes the data processing system to:

obtain sensor data from a plurality of physical sensors;

store the sensor data in a virtual sensor storage system of the data processing system in at least one standardized format;

receive a request from a requestor for a first type of sensor data, wherein the request does not specify a particular physical sensor;

retrieve a portion of the sensor data stored in the virtual sensor storage system in response to receiving the request, wherein the portion of sensor data corresponds to the type of sensor data requested in the request from the requestor; and

return the retrieved portion of the sensor data to the requestor in a format corresponding to a physical sensor configured to provide the requested type of sensor data, wherein the sensor data is obtained via one or more standardized application programming interfaces (APIs) with which the plurality of physical sensors communicate and which communicate data to the virtual sensor storage system, and wherein the one or more standardized APIs comprises at least one first standardized API for communication with a first type of physical sensor in the plurality of physical sensors, and at least one second standardized API for communication with a second type of physical sensor in the plurality of physical sensors, the first type of physical sensor being different than the second type of physical sensor, and the at least one first standardized API is different from the at least one second standardized API.

9. The computer program product of claim 8, wherein the virtual sensor storage system comprises a cloud based storage system comprising a plurality of storage devices coupled to one another via at least one network and represented as a single virtual sensor storage system to the requestor requesting sensor data from the virtual sensor storage system.

10. The computer program product of claim 8, wherein the plurality of physical sensors comprise a plurality of physical sensors of different types associated with different data processing devices and which sense different types of sensor data.

11. The computer program product of claim 8, wherein the computer readable program further causes the data processing system to:

compare sensor data from a subset of physical sensors in the plurality of physical sensors whose sensor data overlaps; and

identify if there is a faulty physical sensor in the subset of physical sensors based on results of the comparison.

12. The computer program product of claim 8, wherein the computer readable program causes the data processing system to obtain sensor data by identifying a constraint associated with a subset of the sensor data as specified by a supplier of the subset of the sensor data, and wherein the computer readable program further causes the data processing system to store the sensor data in the virtual sensor storage system at least by storing an identification of the constraint in association with the subset of the sensor data in the virtual sensor storage system, wherein the constraint specifies a limitation as to which requestors may be provided the associated subset of the sensor data.

13. The computer program product of claim 8, wherein the computer readable program causes the data processing system to retrieve a portion of the sensor data stored in the virtual sensor storage system in response to receiving the request further by:

determining if there is a constraint associated with the portion of the sensor data, wherein the constraint specifies a limitation on which requestors may be provided the portion of the sensor data;

determining if the requestor satisfies a condition of the constraint; and

retrieving the portion of the sensor data only in response to the requestor not satisfying a condition of the constraint.

14. The computer program product of claim 8, wherein the computer readable program causes the data processing system to retrieve a portion of the sensor data stored in the virtual sensor storage system in response to receiving the request by:

retrieving sensor data obtained from more than one physical sensor in the plurality of physical sensors based on the type of sensor data requested in the request and criteria specified in the request; and

combining the sensor data from the more than one physical sensor into a single resultant set of sensor data representing a sensor output of a single virtual sensor, and wherein returning the retrieved portion of the sensor data to the requestor comprises returning the single resultant set of sensor data to the requestor as the sensor output of the single virtual sensor.

15. An apparatus, comprising:

a processor; and

a memory coupled to the processor, wherein the memory comprises instructions which, when executed by the processor, cause the processor to;

obtain sensor data from a plurality of physical sensors;

store the sensor data in a virtual sensor storage system of the data processing system in at least one standardized format;

receive a request from a requestor for a first type of sensor data, wherein the request does not specify a particular physical sensor;

retrieve a portion of the sensor data stored in the virtual sensor storage system in response to receiving the request, wherein the portion of sensor data corresponds to the type of sensor data requested in the request from the requestor; and

return the retrieved portion of the sensor data to the requestor in a format corresponding to a physical sensor configured to provide the requested type of sensor data, wherein the sensor data is obtained via one or more standardized application programming interfaces (APIs) with which the plurality of physical sensors communicate and which communicate data to the virtual sensor storage system, and wherein the one or more standardized APIs comprises at least one first standardized API for communication with a first type of physical sensor in the plurality of physical sensors, and at least one second standardized API for communication with a second type of physical sensor in the plurality of physical sensors, the first type of physical sensor being different than the second type of physical sensor, and the at least one first standardized API is different from the at least one second standardized API.