gca186-en
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| gca186-en [2018/11/26 02:21] – rainerk | gca186-en [2018/12/24 22:18] (current) – [The prototype board] smitt48 | ||
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| Now the basic is to fix at least two magnets under the train, one in front, and one under the last waggon.\\ | Now the basic is to fix at least two magnets under the train, one in front, and one under the last waggon.\\ | ||
| More than two is no problem, the limit = 255.\\ | More than two is no problem, the limit = 255.\\ | ||
| - | Next we need four hall sensors to be mounted between the sleepers, so that they will sense the magnets | + | Next we need 4 hall sensors to be mounted between the sleepers, so that any magnet |
| **NOTE: | **NOTE: | ||
| Be sure that the train should fit completely between sensor A and sensor C, and/or between point D and B.\\ | Be sure that the train should fit completely between sensor A and sensor C, and/or between point D and B.\\ | ||
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| The flashing lights are only shut off after the barriers are completely up again.\\ | The flashing lights are only shut off after the barriers are completely up again.\\ | ||
| If you swap A with D and B with C in this text, you have the explanation for the opposite way.\\ | If you swap A with D and B with C in this text, you have the explanation for the opposite way.\\ | ||
| - | For a one way traffic, different firmware will be available,but not necessary, also for double track .\\ | + | For a one way traffic, different firmware will be available, also for double track.\\ |
| This board cannot service more than doubletrack, | This board cannot service more than doubletrack, | ||
| That would need many more sensors , which there is no input for.\\ | That would need many more sensors , which there is no input for.\\ | ||
| Line 53: | Line 53: | ||
| ===== Why hallsensors? | ===== Why hallsensors? | ||
| It is obvious that sensing the length of a train can only be done if sensors count correctly.\\ | It is obvious that sensing the length of a train can only be done if sensors count correctly.\\ | ||
| - | Current detection is also possible, but in this case not very accurate, and also the last waggon should consume any current from the rails\\ | + | Current detection is almost impossible and very inaccurate, and also the last waggon should consume any current from the rails\\ |
| Reed switches are not suitable because one action could generate multiple pulses.\\ | Reed switches are not suitable because one action could generate multiple pulses.\\ | ||
| - | IR gates have the same problem, | + | In fact, current detection (or ground loop detection with Märklin) shows the same problem.\\ |
| - | Halls-sensors are ideal for it.\\ | + | IR gates also will not work, unless you will be 200% sure that only one pulse is generated for each loc/ |
| - | The large hysteris | + | Hall-sensors are ideal for it.\\ |
| + | The large hysteris | ||
| And that is exactly what we need for this unit.\\ | And that is exactly what we need for this unit.\\ | ||
| Practical users are very enthousistic about this idea.!\\ | Practical users are very enthousistic about this idea.!\\ | ||
| Line 64: | Line 65: | ||
| ===== The prototype board ===== | ===== The prototype board ===== | ||
| - | The usual item, to proove | + | The usual item, to prove that it works.\\ |
| | {{: | | {{: | ||
| \\ | \\ | ||
| Line 75: | Line 76: | ||
| All firmware is developed with Picsimulator from Oshonsoft.\\ | All firmware is developed with Picsimulator from Oshonsoft.\\ | ||
| - | | {{: | + | | {{: |
| | {{: | | {{: | ||
gca186-en.1543195298.txt.gz · Last modified: 2018/11/26 02:21 by rainerk