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1. 发明专利

JPH0375634B2 失效
公开(公告)号：JPH0375634B2
公开(公告)日：1991-12-02
申请号：JP4697288
申请日：1988-02-29
申请人： TOKYO GASU KK , NAKAGAWA BOSHOKU KOGYO KK , NIPPON BOSHOKU KOGYO KK
发明人： TANAKA MASAAKI , SUGITA SHIGEYOSHI , KANEDA OSAMU , GOTO SHUNSUKE , TSUCHA SABURO , ARAI MINORU
IPC分类号： C23F13/00

2. 发明专利

JPS6312942B2 失效
公开(公告)号：JPS6312942B2
公开(公告)日：1988-03-23
申请号：JP2545180
申请日：1980-02-29
申请人： NIPPON DENKI KK , NAKAGAWA BOSHOKU KOGYO KK
发明人： ISHIKAWA TADASHI , SHIMADA MASATOSHI , OKAMOTO KATSUMURE , SUGITA SHIGEYOSHI , GOTO MASAYUKI , KOIZUMI MASAO , KANEDA OSAMU
IPC分类号： C23F13/00 , C23F13/04

3. 发明专利

JPS6335715B2 失效
公开(公告)号：JPS6335715B2
公开(公告)日：1988-07-15
申请号：JP4322381
申请日：1981-03-26
申请人： MITSUI KINZOKU KOGYO KK , NAKAGAWA BOSHOKU KOGYO KK
发明人： HIRAKATA YOSHUKI , KOYATA MASAYUKI , FUKAMIZU YUTAKA , SUGITA SHIGEYOSHI
IPC分类号： C23F13/00

4. 发明专利

JPH01222075A ELECTRIC PROTECTION REMOTE CENTRALIZED CONTROL MECHANISM 失效
公开(公告)号：JPH01222075A
公开(公告)日：1989-09-05
申请号：JP4697388
申请日：1988-02-29
申请人： TOKYO GAS CO LTD , NAKAGAWA CORROSION PROTECT , NIPPON BOSHOKU KOGYO KK
发明人： TANAKA MASAAKI , SUGITA SHIGEYOSHI , KANEDA OSAMU , GOTO SHUNSUKE , TSUCHIYA SABURO , ARAI MINORU
IPC分类号： C23F13/00 , C23F13/02
摘要： PURPOSE:To provide the title mechanism capable of collecting corrosion protection control data from respective electric protection apparatus by the commands from a master station at any time by connecting many slave stations set up corresponding to respective electric protection apparatus provided to many spots remote from a structure to be the object of electric protection to a common master station provided to the proper position by means of leased lines. CONSTITUTION:In respective electric protection apparatus 2(21-2n), corrosion protection is carried out by supplying a corrosion protective current to a structure 1 to be the object of electric protection under previously set conditions. In slave stations 4(41-4n) corresponding to respective apparatus 2, corrosion protection data from respective apparatus 2 are collected by the means previously set by using corrosion protection control data-transmitting means 8(81-8n). The corrosion protection control data collected in the slave stations 4 as mentioned above are collected by a corrosion protection control data-collecting means 9 via respective line terminal units 3(31-3n), leased lines 7(71-7n), and the line terminal units 5(51-5n) of the master station 6. By this method, the corrosion protection control data from widely distributed respective apparatus 2 can be controlled in the master station 6.

5. 发明专利

JPH01222074A ELECTRIC PROTECTION REMOTE CENTRALIZED CONTROL MECHANISM 失效
公开(公告)号：JPH01222074A
公开(公告)日：1989-09-05
申请号：JP4697288
申请日：1988-02-29
申请人： TOKYO GAS CO LTD , NAKAGAWA CORROSION PROTECT , NIPPON BOSHOKU KOGYO KK
发明人： TANAKA MASAAKI , SUGITA SHIGEYOSHI , KANEDA OSAMU , GOTO SHUNSUKE , TSUCHIYA SABURO , ARAI MINORU
IPC分类号： C23F13/00
摘要： PURPOSE:To provide an electric protection remote centralized control mechanism capable of performing the centralized control of corrosion protection control data prom widely distributed respective electric protection apparatus in a master station by constituting a mechanism in which corrosion protection control data from the respective electric protection apparatus corresponding to respective slave stations are successively collected in a master station via a switching line. CONSTITUTION:Many slave stations 5(51-5n) set up so that they correspond to respective electric protection apparatus 2(21-2n) for a structure 1 to be the object of electric protection, e.g., laid underground provided to many remote spots are successively accessed by a master station 7, by which corrosion protection control data from respective apparatus 2 corresponding to the slave stations 2 are successively collected and subjected to centralized control in the master station 7. Simultaneously, when the occurrence of abnormalities, such as the occurrence of noble potential, takes place in any of the slave stations 5, the master station 7 is independently accessed by the slave station 5 and informed of the occurrence of abnormalities. Moreover, since the transmission of these data is carried out via a switched line 3, the required data transmission can be performed independently of the influence of noise and the restriction of transmission distance. Particularly, by using a public line as the switched line 3, the whole of the desired electric protection remote centralized control mechanism can be inexpensively constituted. Further, the figure 16 in figures represents reference electrode.

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