# US 12,225,447 B2 · Data collection system, data output apparatus, and data collection method > Agents: this data is available as JSON from the patentgrep API and MCP server — see https://patentgrep.com/llms.txt - Number: US 12,225,447 B2 - Document ID: US12225447B2 - Status: Granted - Kind: B2 - Application number: 17/628,336 - Filed: 2020-07-08 - Published: 2022-09-08 - Granted: 2025-02-11 - Earliest claimed: 2019-07-30 - Assignees: NEC Corporation - Applicants: NEC Corporation - Inventors: Yasuharu Onishi; Yasuyuki Fukuta; Sae Watanabe; Noboru Tashiro; Michio Shibata - Web page: https://patentgrep.com/patent/US12225447B2 ## CPC - H04W 40/28: for reactive routing - G08C 15/00: Arrangements characterised by the use of multiplexing for the transmission of a plurality of signals over a common path - G08C 17/00: Arrangements for transmitting signals characterised by the use of a wireless electrical link - H04W 4/38: for collecting sensor information - H04W 24/08: Testing, {supervising or monitoring} using real traffic - H04W 40/02: Communication route or path selection, e.g. power-based or shortest path routing - H04W 24/02: Arrangements for optimising operational condition - H04W 84/18: Self-organising networks, e.g. ad-hoc networks or sensor networks - H04W: WIRELESS COMMUNICATION NETWORKS (broadcast communication H04H; communication systems using wireless links for non-selective communication, e.g. wireless extensions H04M1/72) - G08C: TRANSMISSION SYSTEMS FOR MEASURED VALUES, CONTROL OR SIMILAR SIGNALS (fluid pressure transmitting systems F15B; mechanical means for transferring the output of a sensing member into a different variable G01D5/00; mechanical control systems G05G) ## Abstract A plurality of data output apparatuses (10) are installed at places different from each other, and each output data in wireless communication. A data storage apparatus (20) stores the data output from the data output apparatus (10). The data output apparatus (10) includes at least one sensor and a wireless communication apparatus. The wireless communication apparatus stores, for each of the plurality of other wireless communication apparatuses that can be a transmission destination of the data, connection information for connecting to the other wireless communication apparatus and priority information indicating a priority of the other wireless communication apparatus. Then, the wireless communication apparatus repeats processing of reading the connection information, and performing communication by using the read connection information in descending order of the priority until the communication succeeds when a transmission route of the data is set. ## Claims ### Claim 1 A data collection system, comprising: a plurality of data output apparatuses that are installed at places different from each other, and each output data in wireless communication; and a data storage apparatus that stores the data output from the plurality of data output apparatuses, wherein each of the plurality of data output apparatuses comprises at least one sensor that generates the data, and a wireless communication apparatus that transmits the data toward the data storage apparatus, and the wireless communication apparatus stores, for each of the plurality of other wireless communication apparatuses that can be a transmission destination of the data, connection information for connecting to the other wireless communication apparatus and priority information indicating a priority of the other wireless communication apparatus, and repeats processing of reading the connection information, and performing communication by using the read connection information in descending order of the priority until the communication succeeds when a transmission route of the data is set, wherein the data output apparatus adjusts a volume of the data to be transmitted in response to time since the data transmitted are output until the data transmitted reach the data storage apparatus, wherein the data output apparatus adjusts the volume of the data by adjusting a measurement time of the sensor when one piece of the data is generated. ### Claim 2 (depends on 1) The data collection system according to claim 1, wherein the plurality of data output apparatuses are installed in a factory or a power plant. ### Claim 3 (depends on 1) The data collection system according to claim 1, wherein the data output apparatus transmits dummy data at a time of communication for setting a transmission route of the data. ### Claim 4 (depends on 3) The data collection system according to claim 3, wherein the wireless communication apparatus of the data output apparatus determines the transmission route associated with a first data volume by using a transmission result of first dummy data having the first data volume, and determines the transmission route associated with a second data volume by using a transmission result of second dummy data having the second data volume. ### Claim 5 (depends on 1) The data collection system according to claim 1, wherein, in at least one of the data output apparatuses, a band in the wireless communication when the data are received is different from a band in the wireless communication when the data are transmitted. ### Claim 6 A data output apparatus that outputs data in wireless communication, and is used in a state of a plurality of the data output apparatuses being installed at places different from each other, the data output apparatus comprising: at least one sensor that generates the data; and a wireless communication apparatus that transmits the data toward a data storage apparatus, wherein the wireless communication apparatus stores, for each of the plurality of other wireless communication apparatuses that can be a transmission destination of the data, connection information for connecting to the other wireless communication apparatus and priority information indicating a priority of the other wireless communication apparatus, and repeats processing of reading the connection information, and performing communication by using the read connection information in descending order of the priority until the communication succeeds when a transmission route of the data is set, wherein the data output apparatus adjusts a volume of the data to be transmitted in response to time since the data transmitted are output until the data transmitted reach the data storage apparatus, wherein the data output apparatus adjusts the volume of data by adjusting a measurement time of the sensor when one piece of the data is generated. ### Claim 7 (depends on 6) The data output apparatus according to claim 6, wherein the data output apparatus is installed in a factory or a power plant. ### Claim 8 (depends on 6) The data output apparatus according to claim 6, wherein the data output apparatus transmits dummy data at a time of communication for setting a transmission route of the data. ### Claim 9 (depends on 6) The data output apparatus according to claim 6, wherein the wireless communication apparatus determines the transmission route associated with a first data volume by using a transmission result of first dummy data having the first data volume, and determines the transmission route associated with a second data volume by using a transmission result of second dummy data having the second data volume. ### Claim 10 (depends on 6) The data output apparatus according to claim 6, wherein the data output apparatus adjusts a volume of the data by adjusting a sampling rate when analog data output from the sensor are converted into digital data. ### Claim 11 (depends on 6) The data output apparatus according to claim 6, wherein the sensor is a vibration sensor that detects vibration in each of a plurality of directions, and the data output apparatus adjusts a volume of the data by adjusting a number of the directions to be included in the data. ### Claim 12 (depends on 6) The data output apparatus according to claim 6, further comprising: a plurality of the sensors, wherein the data output apparatus adjusts a volume of the data by adjusting a number of the sensors that generate the data. ### Claim 13 A data collection method comprising using a data collection system, the data collection system comprising: a plurality of data output apparatuses that are installed at places different from each other, and each output data in wireless communication, and a data storage apparatus that stores the data output from the plurality of data output apparatuses, wherein each of the plurality of data output apparatuses comprises at least one sensor that generates the data, and a wireless communication apparatus that transmits the data toward the data storage apparatus, and the wireless communication apparatus stores, for each of the plurality of other wireless communication apparatuses that can be a transmission destination of the data, connection information for connecting to the other wireless communication apparatus and priority information indicating a priority of the other wireless communication apparatus, and repeats processing of reading the connection information, and processing communication by using the read connection information in descending order of the priority until the communication succeeds when a transmission route of the data is set, wherein each of the plurality of data output apparatuses adjusts a volume of the data to be transmitted in response to time since the data transmitted are output until the data transmitted reach the data storage apparatus, wherein the data output apparatus adjusts the volume of data by adjusting a measurement time of the sensor when one piece of the data is generated.