Reverse/Back Up Sensors For Cars/Light Trucks

This has been designed, produced and then mass produced for cars etc...

Originally it was for Polaroid cameras for range finding back in the 70s...

It uses ultrasound, about 40kHz, to give range finding... Nothing new about it, you can buy a simple kit to install on your own car.

John.

Hi Electroman,

Can you buy from the likes of Halfords for fitting by the DIY enthusiast?

Thanks for the feedback. I understand the origin and basic technology, but am specifically interested in a sensor that can send/receive through the bumper fascia material i.e. plastic, etc... thus eliminating the need to bore/punch holes in the bumper to facilitate mounting the sensors as it is currently done....the sensor "plugs" are inserted into the holes flush with the outer surface of the bumper skin....

There are some good kits (to allow you to install yourself) with LCD display and 4 sensors from about 45 Euros and up......you do not need to invent it yourself!

I forgot to mention, there is a version of this park sensor that works like an antenna, a silver foil must be stuck inside the plastic bumper, at least 40 cm above the ground if I remember correctly. Therefore you do not need to bore holes!!!

Thanks for the feedback...would you happen to know who produces these and their principle of operation?

It used simple radio techniques (says he knowledgeably!!), I will look around for you and report back!!

I found it at Conrad Electronic, it costs €102.50.

E. P. S. Antennenband - Einparkhilfe

Die unsichtbare Einparkhilfe. Ermöglicht Rangieren bis zur Stoßfängerkante. Bei einem Abstand von weniger als 50 cm wird vor Hindernissen jeglicher Form gewarnt. Ein Mini-Lautsprecher (Ø 25 mm) gibt bei kleiner werdendem Abstand immer intensivere Signale ab. BeimEinbau des Antennenbandes in der Heckstoßstange wird das Gerät automatisch mit dem Rückfahr-Scheinwerfer aktiviert. Mit einem zusätzlichen Schalter auch geeignet für Frontstoßfänger. Das 2,5 m lange, selbstklebende Antennenband ist mindestens 40 cm über Straßen-Ebene und 3 cm vom Kfz-Metall entfernt in der äußersten Kunststoffschale des Stoßfängers vibrationsfest anzubringen. Nicht geeignet für Metall-Stoßstangen.

Technische Daten Max. Reichweite: 0 bis 50 (kein toter Winkel). cm Betriebsspannung: 10.5 - 18 V Sensoren:

Antenne (Funk fähig)

Do you need translation help?

Download this .pdf in English:-

http://www2.produktinfo.conrad.com/datenblaetter/850000-874999/852791-an-01-en-Antennenband_Einparkhilfe.pdf

Have you read my recent postings from yesterday? I think that is exactly what you are looking for.....

Let me know if you need to have one sent to you. If yes, contact me over my normal email address.