Train detection system

[kicom]

Guys,

Please suggest me the methods of detecting distance to train and its speed that you have come across.
one obvious is GPS/GSM methods

Thank you

 

[Venkadesh_M]

What accuracy you need, for what application ?

 

[Mattylad]

A man in a signal box, then uses his phone to call you. :thumbsup:

 

[D.A.(Tony)Stewart]

Fading loss makes RF unreliable estimator but beats nothing using ISM band directional coded channels.

Hot box network is most reliable, GPS is more resolution.

Comm protocol best in use is MPT1327 trunking system

 

[kicom]

What accuracy you need, for what application ?

It should be accurate within 5m and speed in 1 decimal.
Application is to detect speed and distance from a station

 

[kicom]

Fading loss makes RF unreliable estimator but beats nothing using ISM band directional coded channels.

Thanks
But what do you mean by using RF signals for detection systems???

 

[D.A.(Tony)Stewart]

Those requirements demand GPS at a minimum and perhaps differential GPS repeaters along the path especially underground.

What's your budget?

 

[kicom]

Those requirements demand GPS at a minimum and perhaps differential GPS repeaters along the path especially underground.

What's your budget?

My target is to develop other than a GPS system.That's why i'm looking for other possible methods.
Budget should be less than USD200.

 

[Tunelabguy]

Over what distance range from the station does this have to operate?

 

[kicom]

Over what distance range from the station does this have to operate?

my target is to develop a system to detect within 1km distance

 

[FvM]

Unfortunately laws of physics might restrict the feasibility of your project.

Reviewing the electromagnetic TOF method in your previous thread. https://www.edaboard.com/threads/321208/
you're apparently trying to implement a passive detection system without additional equipment installed in the train. The only reliable methods to achieve this would be optical or microwave radar, limited to line of sight and involving a relative large angle where other moving objects (e.g. cars) will cause erroneous detection.