Sensor management apparatus, sensor management apparatus control program, computer-readable recording medium containing the program, and sensor management apparatus control method

• US 20040249590A1
• Filed: 04/02/2004
• Published: 12/09/2004
• Est. Priority Date: 10/04/2001
• Status: Active Grant

• Current Assignee: Omron Corporation
• Original Assignee: Omron Corporation
• Inventors: Ota, Shunji, Oyagi, Masayuki, Fukushima, Yoshihiko, Otsuki, Yoshiyuki
• Granted Patent: US 7,406,401 B2
• Time in Patent Office: Days
• US Class Current: 702/79
• CPC Class Codes: G01D 9/005 Solid-state data loggers
• CPC Class Codes: H04Q 9/02 Automatically-operated arrangements

Abstract

A sensor network controller (4) includes: a sensor interface (44) receiving sensing data transmitted from sensors (5); a data write section (150) writing the received sensing data and sensing time information indicating a sensing time of the sensing data in association with each other to a memory section (42); the memory section (42) storing the sensing data and the sensing time information; a first data processing section (144) generating sensing data which is at the timing designated by a client on the basis of the sensing data and the sensing time information stored in the memory section (42); and a data output section (148) outputting the generated sensing data to the client. The client is enabled to acquire sensing data in accordance with a request even if the scheme by which the sensors convey sensing data does not match with the scheme by which the client makes a request for sensing data.

Claims

1. A sensor manager device receiving sensing data transmitted from a sensor and providing data based on the sensing data to an external client,

the sensor automatically performing sensing and transmitting sensing data, the client designating a timing and requesting sensing data acquired by the sensor,

said sensor manager device comprising:

a data receiver section receiving sensing data transmitted from the sensor;

a data write section writing the received sensing data, sensing time information indicating a sensing time of the sensing data, and a unique sensor ID of the sensor transmitting the sensing data in association with one another to a memory section;

the memory section storing the sensing data, the sensing time information, and the sensor ID;

a data processing section generating sensing data which is provided by a sensor designated by the client at the timing designated by the client on the basis of the sensing data, the sensing time information, and the sensor ID stored in the memory section; and

a data output section outputting the sensing data generated by the data processing section to the client.

2. The sensor manager device as set forth in claim 1, wherein the data processing section interpolates the sensing data which is at the timing designated by the client on the basis of the sensing data and the sensing time information stored in the memory section

8. The sensor manager device as set forth in claim 1, further comprising a signal input section receiving a sensing data request signal transmitted from the client.

9. The sensor manager device as set forth in claim 8, further comprising a request recognizing section recognizing a scheme by which the client has requested sensing data on the basis of the sensing data request signal.

10. The sensor manager device as set forth in claim 1, wherein

said sensor manager device manages multiple sensors and records types into which the sensors are categorized as to sensing data transmission method.

11. A computer program for controlling a sensor manager device, causing the sensor manager device as set forth claim 1 to operate, wherein

said program causes a computer to function as the sections.

12. A computer-readable storage medium containing the computer program for controlling a sensor manager device as set forth in claim 11.

3. A sensor manager device receiving sensing data transmitted from a sensor and providing data based on the sensing data to an external client,

the sensor, when there has occurred a change in a sensing result, transmitting sensing data after the change, the client designating a timing and requesting sensing data acquired by the sensor,

said sensor manager device comprising:

a data receiver section receiving sensing data transmitted from the sensor;

a memory section storing the received sensing data;

a data processing section acquiring latest sensing data stored in the memory section at the timing designated by the client; and

a data output section outputting the sensing data acquired by the data processing section to the client.

4. A sensor manager device receiving sensing data transmitted from a sensor and providing data based on the sensing data to an external client,

the sensor automatically performing sensing and transmitting sensing data, the client requesting sensing data when there has occurred a change in a sensing result acquired by the sensor,

said sensor manager device comprising:

a data receiver section receiving sensing data transmitted from the sensor;

a memory section storing the received sensing data;

a data processing section determining whether there has occurred a change in the sensing data on the basis of the sensing data stored in the memory section, and when it is determined that there has occurred a change, acquiring sensing data after the change; and

a data output section outputting the sensing data acquired by the data processing section to the client.

5. The sensor manager device as set forth in claim 4, wherein

the data processing section periodically determines whether there has occurred a change in the sensing data on the basis of the sensing data stored in the memory section.

6. A sensor manager device receiving sensing data transmitted from a sensor and providing data based on the sensing data to an external client,

the sensor performing sensing and transmitting sensing data in accordance with a sensing signal requesting a transmission of the sensing data, the client requesting sensing data when there has occurred a change in a sensing result acquired by the sensor,

said sensor manager device comprising:

a signal output section outputting the sensing signal to the sensor;

a data receiver section receiving the sensing data transmitted from the sensor;

a memory section storing the received sensing data;

a data processing section determining whether there has occurred a change in the sensing data on the basis of the sensing data stored in the memory section, and when it is determined that there has occurred a change, acquiring sensing data after the change; and

a data output section outputting the sensing data acquired by the data processing section to the client.

7. The sensor manager device as set forth in claim 6, wherein the signal output section periodically outputs the sensing signal.

13. A method of controlling a sensor manager device receiving sensing data transmitted from a sensor and providing data based on the sensing data to an external client,

the sensor automatically performing sensing and transmitting sensing data, the client designating a timing and requesting sensing data acquired by the sensor,

said method comprising the steps of:

(a) receiving sensing data transmitted from the sensor;

(b) writing the received sensing data, sensing time information indicating a sensing time of the sensing data, and a unique sensor ID of the sensor transmitting the sensing data in association with each other to a memory section;

(c) generating sensing data which is provided by a sensor designated by the client at the timing designated by the client on the basis of the sensing data, the sensing time information, and the sensor ID stored in the memory section; and

(d) outputting the sensing data generated in step (c) to the client.

14. A method of controlling a sensor manager device receiving sensing data transmitted from a sensor and providing data based on the sensing data to an external client,

the sensor, when there has occurred a change in a sensing result, transmitting sensing data after the change, the client designating a timing and requesting sensing data acquired by the sensor,

said method comprising the steps of:

(a) receiving sensing data transmitted from the sensor;

(b) writing the received sensing data to a memory section;

(c) acquiring latest sensing data stored in the memory section at the timing designated by the client;

(d) outputting the sensing data acquired in step (c) to the client.

15. A method of controlling a sensor manager device receiving sensing data transmitted from a sensor and providing data based on the sensing data to an external client,

the sensor automatically performing sensing and transmitting sensing data, the client requesting sensing data when there has occurred a change in a sensing result acquired by the sensor,

said method comprising the steps of:

(a) receiving sensing data transmitted from the sensor;

(b) writing the received sensing data to a memory section;

(c) determining whether there has occurred a change in the sensing data on the basis of the sensing data stored in the memory section, and when it is determined that there has occurred a change, acquiring sensing data after the change; and

(d) outputting the sensing data acquired in step (c) to the client.

16. A method of controlling a sensor manager device receiving sensing data transmitted from a sensor and providing data based on the sensing data to an external client,

the sensor performing sensing and transmitting sensing data in accordance with a sensing signal requesting a transmission of the sensing data, the client requesting sensing data when there has occurred a change in a sensing result acquired by the sensor,

said method comprising the steps of:

(a) outputting the sensing signal to the sensor;

(b) receiving the sensing data transmitted from the sensor;

(c) writing the received sensing data to a memory section;

(d) determining whether there has occurred a change in the sensing data on the basis of the sensing data stored in the memory section, and when it is determined that there has occurred a change, acquiring sensing data after the change; and

(e) outputting the sensing data acquired in step (d) to the client.