JPS5595813A - Integrating distance meter - Google Patents
Integrating distance meterInfo
- Publication number
- JPS5595813A JPS5595813A JP178179A JP178179A JPS5595813A JP S5595813 A JPS5595813 A JP S5595813A JP 178179 A JP178179 A JP 178179A JP 178179 A JP178179 A JP 178179A JP S5595813 A JPS5595813 A JP S5595813A
- Authority
- JP
- Japan
- Prior art keywords
- voltage
- memory
- data
- power source
- recovered
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
Landscapes
- Measurement Of Distances Traversed On The Ground (AREA)
- Arrangements For Transmission Of Measured Signals (AREA)
Abstract
PURPOSE: To decrease the memory using frequency and increase the life time along with a compact design by writing the running distance data into the nonvolatile memory when the reduction of the power voltage is detected and then reading the data when the power voltage is recovered.
CONSTITUTION: In case the voltage of power source 6 is normal, the division voltage of resistances 10 and 10' at command part 4 is higher than the reference level. And the output of differential amplifier 15 becomes negative with no actuation of nonvolatile memory 5. And the running distance data given from integrating part 2 is sent to driving circuit 8 to be displayed at display part 7. With reduction of the voltage of power source 6, capacitor 12 starts discharging. Thus memory 5 and the counter of integrator 2 are driven to avoid discontinuation of operation. At the same time, the data is memorized in memory 5 via timer 17. When the voltage of power source 6 is recovered, capacitor 12 is charged. Thus the data is read out of memory 5 and then added as the preset vaule to be displayed.
COPYRIGHT: (C)1980,JPO&Japio
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP178179A JPS5595813A (en) | 1979-01-13 | 1979-01-13 | Integrating distance meter |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP178179A JPS5595813A (en) | 1979-01-13 | 1979-01-13 | Integrating distance meter |
Publications (1)
Publication Number | Publication Date |
---|---|
JPS5595813A true JPS5595813A (en) | 1980-07-21 |
Family
ID=11511108
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP178179A Pending JPS5595813A (en) | 1979-01-13 | 1979-01-13 | Integrating distance meter |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS5595813A (en) |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO1984004381A1 (en) * | 1983-04-22 | 1984-11-08 | Hitachi Ltd | Electronic odometer |
EP0173402B1 (en) * | 1984-08-31 | 1990-09-19 | Standard Telefon Og Kabelfabrik A/S | Armoured submarine cable |
-
1979
- 1979-01-13 JP JP178179A patent/JPS5595813A/en active Pending
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO1984004381A1 (en) * | 1983-04-22 | 1984-11-08 | Hitachi Ltd | Electronic odometer |
EP0173402B1 (en) * | 1984-08-31 | 1990-09-19 | Standard Telefon Og Kabelfabrik A/S | Armoured submarine cable |
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