US 12,006,632 B2
Monitoring system
Hiroshi Sekiya, Tokyo (JP); Hitomaru Sakata, Fuji (JP); Daisuke Kobayashi, Tokyo (JP); and Ayano Suga, Tokyo (JP)
Assigned to MAINTECH CO., LTD., Tokyo (JP)
Appl. No. 17/277,836
Filed by MAINTECH CO., LTD., Tokyo (JP)
PCT Filed Oct. 1, 2019, PCT No. PCT/JP2019/038764
§ 371(c)(1), (2) Date Mar. 19, 2021,
PCT Pub. No. WO2020/071370, PCT Pub. Date Apr. 9, 2020.
Claims priority of application No. 2018-186934 (JP), filed on Oct. 1, 2018.
Prior Publication US 2021/0348334 A1, Nov. 11, 2021
Int. Cl. D21G 9/00 (2006.01); G01N 21/892 (2006.01); G05B 15/02 (2006.01); H04N 7/18 (2006.01); D21F 1/32 (2006.01); G01N 21/84 (2006.01)
CPC D21G 9/0054 (2013.01) [D21G 9/0027 (2013.01); G01N 21/892 (2013.01); G05B 15/02 (2013.01); H04N 7/18 (2013.01)] 4 Claims
OG exemplary drawing
 
1. A monitoring system having a papermaking machine for manufacturing paper, an applying device for applying a chemical solution to a site of the papermaking machine directly or indirectly in contact with the paper while the papermaking machine is operated, a control panel for setting an application condition of the applying device, a monitoring camera for monitoring a monitoring target site, and a control device connected to the monitoring camera via a network, wherein
the monitoring target site is dryer rolls, canvas, or canvas rolls of the papermaking machine directly or indirectly in contact with the paper and/or the applying device, and
the control device has a computing unit which converts a state of the monitoring target site into a numerical form with binarizing by using video taken by the monitoring camera, a display unit which displays detection data obtained by conversion of a change amount of a binarized value during operation with respect to a value obtained by binarizing a stationary state into the numerical form at the computing unit, and a storage unit which stores the detection data.