JPS5546803A - Train speed level detector - Google Patents
Train speed level detectorInfo
- Publication number
- JPS5546803A JPS5546803A JP12079079A JP12079079A JPS5546803A JP S5546803 A JPS5546803 A JP S5546803A JP 12079079 A JP12079079 A JP 12079079A JP 12079079 A JP12079079 A JP 12079079A JP S5546803 A JPS5546803 A JP S5546803A
- Authority
- JP
- Japan
- Prior art keywords
- output
- frequency
- comparator
- train speed
- speed
- 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.)
- Granted
Links
Landscapes
- Electric Propulsion And Braking For Vehicles (AREA)
Abstract
PURPOSE: To simplify this device, and to reduce cost, by decreasing the locations of frequency comparators by mounting a means, which compares the second frequency among three frequency signals and speed frequency signals, and a means, which changes over the second frequency to the first and third frequency according to any of the output and compares them.
CONSTITUTION: When the speed Vx of a train is not less than H=5km/h, the output of a comparator 1 is in ON, the output is input to an AND circuit 4 and a pattern Ix is put out. In this case, the output is also input to an inverter 3, and disconnection detecting frequency G for obtaining the output of OFF is not put out. The pattern output Ix of the AND circuit 4 and the train speed Vx are compared by means of a comparator 2, and the output is in ON when the pattern is larger. When the exclusive-or of the output of the comparator 2 and the output of the comparator 1 is calculated, the output of an OR circuit 6 is in OFF, and a brake is in OFF at that time. Thus, the levels of train speed frequency can be detected by using two frequency comparators.
COPYRIGHT: (C)1980,JPO&Japio
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP12079079A JPS5546803A (en) | 1979-09-21 | 1979-09-21 | Train speed level detector |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP12079079A JPS5546803A (en) | 1979-09-21 | 1979-09-21 | Train speed level detector |
Publications (2)
Publication Number | Publication Date |
---|---|
JPS5546803A true JPS5546803A (en) | 1980-04-02 |
JPS5628081B2 JPS5628081B2 (en) | 1981-06-29 |
Family
ID=14795056
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP12079079A Granted JPS5546803A (en) | 1979-09-21 | 1979-09-21 | Train speed level detector |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS5546803A (en) |
Families Citing this family (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
SG11202003310XA (en) | 2017-10-12 | 2020-05-28 | Avery Dennison Corp | Low outgassing clean adhesive |
-
1979
- 1979-09-21 JP JP12079079A patent/JPS5546803A/en active Granted
Also Published As
Publication number | Publication date |
---|---|
JPS5628081B2 (en) | 1981-06-29 |
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