FI910514A - FOERFARANDE OCH ANORDNINGAR FOER SAENDNING AV HISSANROPSSIGNALER. - Google Patents
FOERFARANDE OCH ANORDNINGAR FOER SAENDNING AV HISSANROPSSIGNALER. Download PDFInfo
- Publication number
- FI910514A FI910514A FI910514A FI910514A FI910514A FI 910514 A FI910514 A FI 910514A FI 910514 A FI910514 A FI 910514A FI 910514 A FI910514 A FI 910514A FI 910514 A FI910514 A FI 910514A
- Authority
- FI
- Finland
- Prior art keywords
- frequency
- time
- button circuit
- comparison value
- call button
- Prior art date
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- Electronic Switches (AREA)
- Transceivers (AREA)
Abstract
The invention relates to a process and a device for sending a call signal of call button circuit in a lift, which signal has been generated by a frequency change. In the process, the frequency of the call button circuit is compared with a comparison value and a lift call signal is sent on the basis of this comparison. According to the invention, the frequency of the call button circuit at successive points in time is compared with the comparison value which applies at the point in time in question and the comparison value is changed for a value which has been generated by the frequency of at least one call button circuit at an earlier point in time. The device according to the invention comprises at least one unit 3 for comparing the frequency of the call button circuit with a comparison value which applies at the point in time, and at least one unit 2 for generating a new comparison value on the basis of at least one frequency applying at an earlier point in time. <IMAGE>
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
FI910514A FI89784C (en) | 1991-02-01 | 1991-02-01 | Method and apparatus for transmitting elevator call signal |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
FI910514A FI89784C (en) | 1991-02-01 | 1991-02-01 | Method and apparatus for transmitting elevator call signal |
FI910514 | 1991-02-01 |
Publications (4)
Publication Number | Publication Date |
---|---|
FI910514A0 FI910514A0 (en) | 1991-02-01 |
FI910514A true FI910514A (en) | 1992-08-02 |
FI89784B FI89784B (en) | 1993-08-13 |
FI89784C FI89784C (en) | 1993-11-25 |
Family
ID=8531840
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
FI910514A FI89784C (en) | 1991-02-01 | 1991-02-01 | Method and apparatus for transmitting elevator call signal |
Country Status (1)
Country | Link |
---|---|
FI (1) | FI89784C (en) |
-
1991
- 1991-02-01 FI FI910514A patent/FI89784C/en active
Also Published As
Publication number | Publication date |
---|---|
FI89784C (en) | 1993-11-25 |
FI89784B (en) | 1993-08-13 |
FI910514A0 (en) | 1991-02-01 |
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