To perform a communication even without knowing an original telephone number when performing setting or sucking-up of non-delivery data while using a dedicated tool for a unit wattmeter that performs remote meter-reading.
In addition to a telephone number (an upper stage within a circle of each unit wattmeter T) to be ordinarily used for transmitting meter-reading data to a server device 1 or for receiving control data, a sub telephone number (lower stage) is set. The sub telephone number is constituted of lower four digits of a number, such as e.g., a serial number, which can be uniquely derived according to a prespecified calculation method based on specific data added to a machine body. Furthermore, the serial number is set as an additional telephone number, and transmitted within a message. A worker therefore can easily know the sub telephone number by watching a manufacture name plate or the like and can accurately designate terminal stations (unit wattmeters T) over the number of accommodations using sub telephone numbers.
| JP2022042184 | TELEMETER AND LINE CHANGE METHOD THEREOF |
| JPS58157229 | BIDIRECTIONAL WIRELESS DEVICE |
| JPS6369352 | DATA FETCHING CIRCUIT |
MAEKAWA KOJI
HAHAKABE KEN
FUJIWARA MASAKI
ABE MAKOTO
YOSHINO ISAO
HIRANO TAKASHI
MATSUZAKI TAKAO
TSUNEMATSU NOBUMOTO
OI ELECTRIC CO LTD
NEC CORP
HITACHI LTD
| JPH11175870A | 1999-07-02 | |||
| JP2006048459A | 2006-02-16 | |||
| JPH10276115A | 1998-10-13 | |||
| JP2002152110A | 2002-05-24 | |||
| JP2002218080A | 2002-08-02 | |||
| JP2000147030A | 2000-05-26 |
Masataka Otani
Haruhiro Hirata
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