SENSOR AND RECEIVING DEVICE IN SENSOR SYSTEM

• US 20140098700A1
• Filed: 05/24/2012
• Published: 04/10/2014
• Est. Priority Date: 05/25/2011
• Status: Active Grant

• Current Assignee: NEC Corporation
• Original Assignee: NEC Corporation
• Inventors: Maruhashi, Kenichi, Takahashi, Shingo, Yoshida, Nobuhide, Itabashi, Noriyuki
• Granted Patent: US 9,693,244 B2
• Time in Patent Office: Days
• US Class Current: 370/252
• CPC Class Codes: H04L 12/403 with centralised control, e.g. polling
• CPC Class Codes: H04L 12/4035 in which slots of a TDMA packet structure are assigned based on a contention resolution carried out at a master unit TDM/TDMA multiplex systems per se H04J3/1694; hybrid switching systems H04L12/64
• CPC Class Codes: H04L 2012/4026 Bus for use in automation systems
• CPC Class Codes: H04L 67/125 involving control of end-device applications over a network
• CPC Class Codes: H04W 24/00 Supervisory, monitoring or testing arrangements
• CPC Class Codes: H04W 24/08 Testing, supervising or monitoring using real traffic
• CPC Class Codes: H04W 28/04 Error control
• CPC Class Codes: H04W 4/14 Short messaging services, e.g. short message services [SMS] or unstructured supplementary service data [USSD]
• CPC Class Codes: H04W 72/541 using the level of interference
• CPC Class Codes: H04W 84/18 Self-organising networks, e.g. ad-hoc networks or sensor networks
• CPC Class Codes: H04W 88/06 adapted for operation in multiple networks or having at least two operational modes, e.g. multi-mode terminals

Abstract

A sensor system in which it is possible to identify a sufficient number of sensors even in a situation where the data length of a packet is limited, as well as a sensor and a receiving device in the same, are provided. A sensor repeating a measurement period for performing measurement and a transmission period for performing transmission at predetermined cycles, includes: a measurement section (11) that outputs during the measurement period measurement information based on predetermined measurement; and a transmission section (12) that transmits during the transmission period, by using a single packet or a plurality of packets, source identification information for identifying a source of a packet, the measurement information, and sensor-related information for identifying the sensor and/or a measurement target equipment of this sensor.

Claims

1. A sensor that repeats a measurement period for performing measurement and a transmission period for performing transmission at predetermined cycles, comprising:

a measurement section that outputs during the measurement period measurement information based on predetermined measurement; and

a transmission section that transmits during the transmission period, by using at least one packet, source identification information for identifying a source of a packet, the measurement information, and sensor-related information for identifying the sensor and/or a measurement target equipment of the sensor.

2. The sensor according to claim 1, wherein the transmission section transmits a first packet including the source identification information and the measurement information and at least one second packet including the source identification information and the sensor-related information.

3. The sensor according to claim 1, wherein the sensor-related information is divided into a plurality of second packets and transmitted.

4. The sensor according to claim 1, wherein the packet includes an error correction code.

5. A receiving device that receives a packet from a sensor that repeats a measurement period for performing measurement and a transmission period for performing transmission at predetermined cycles, comprising:

a reception section that receives from the sensor at least one packet including source identification information for identifying a source of the packet, measurement information measured by the sensor, and sensor-related information for identifying the sensor and/or a measurement target equipment of the sensor; and

an identification section that identifies the sensor and/or the measurement target equipment of the sensor based on the source identification information and the sensor-related information received from the sensor.

6. The receiving device according to claim 5, wherein the reception section receives a first packet including the source identification information and the measurement information and at least one second packet including the source identification information and the sensor-related information.

7. The receiving device according to claim 5, wherein the sensor-related information is divided into a plurality of second packets and is reconfigured from the plurality of second packets received.

8. The receiving device according to claim 5, wherein the packet includes an error correction code.

9. The receiving device according to claim 5, wherein the identification section obtains type information corresponding to the received sensor-related information by referring to a database, which stores the sensor-related information and type information corresponding to this sensor-related information, and identifies the sensor and/or the measurement target equipment of this sensor.

10. A sensor system including:

a plurality of sensors that are provided to a plurality of electric equipments respectively and perform predetermined measurement;

and a receiving device that receives packets from each sensor, wherein each sensor repeats a measurement period for performing measurement and a transmission period for performing transmission at predetermined cycles, and transmits during the transmission period, by using at least one packet, source identification information for identifying a source of a packet, a measurement result of the measurement, and sensor-related information for identifying the sensor and/or a measurement target equipment of this sensor, and

the receiving device receives from the sensors the single packet or the plurality of packets including the source identification information, the measurement result, and the sensor-related information for identifying the sensors and/or the respective electric equipments of the sensors, and identifies the sensors and/or the respective electric equipments of the sensors based on the source identification information and the sensor-related information received.

11. The sensor system according to claim 10,wherein

the sensor transmits a first packet including the source identification information and the measurement information and at least one second packet including the source identification information and the sensor-related information, and

the receiving device receives the first packet and the at least one second packet.

12. The sensor system according to claim 10, wherein

the sensor divides the sensor-related information into a plurality of second packets and transmits them, and

the receiving device reconfigures the sensor-related information from the plurality of second packets received.

13. The sensor system according to claim 10, wherein the packets include an error correction code.

14. The sensor system according to claim 10, wherein the receiving device obtains type information corresponding to the received sensor-related information by referring to a database, which stores the sensor-related information and type information corresponding to this sensor-related information, and identifies the sensors and/or the respective measurement target equipment of the sensors.