Japan Platform for Redesign: Sustainable Infrastructure (JPRSI)

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smart ball method

Technology / Service Summary

Used for free-swimming pipeline survey work.
This is a technology that detects and records leaks by moving a ball with a built-in sensor and recording device inside the pressure pipe with water flow.

Purpose

① Investigation of pipelines that require investigation due to uninterrupted water supply
② Investigation of pipelines that are concerned about the effects of ground and external noise
③ Investigation under roadways and buildings where excavation is impossible
④ I want to investigate pipes including overhangs at once
⑤ I want to investigate the gas pocket

Feature

①It is possible to detect multiple leaks and investigate up to 20 km.
② Surveys can be conducted without interruption of water supply.
③ It is less susceptible to noise and can detect even minute leaks.
④ It is possible to investigate under the roadway.
⑤ Vertical pipes can also be moved if the flow velocity is about 0.5m/sec or more.
⑥ Estimate the amount of water leakage.

Effect

①Investigation of pipelines that require investigation due to uninterrupted water supply
② Investigation of pipelines that are concerned about the effects of ground and external noise
③ Investigation under roadways and buildings where excavation is impossible
④ I want to investigate pipes including overhangs at once
⑤ I want to investigate the gas pocket

Controlled Substance

Applicable Regions / Countries

  • Japan

Accomplishments

[Results by prefecture]
Hokkaido: 6,298.500m, Iwate: 4,411.940m, Niigata: 5,018.900m, Fukui: 31,631.349m, Tokyo: 936.246m, Kanagawa: 3,3131.920m, Aichi: 1,385.000m, Hyogo: 6,842.169m, Tokushima Prefecture: 5,108.840m Okayama Prefecture: 1,208.170m Hiroshima Prefecture: 1,068.523m Okinawa Prefecture: 3,272.800m

[Results by water quality]
Agricultural water: 40,290.399m Industrial water: 13,915.092m Sewerage: 12,977.006m Water supply: 3,132.070m

Reference URL

Locations for inspection

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Related SDGs Goals

  • 6. Clean Water and Sanitation
  • 11. Sustainable Cities and Communities
  • 14. Life Below Water

smart ball method