DE2015875A1 - Temporarily removable measuring sensor for traffic detectors - Google Patents

Description

Temporarily installable sensor for traffic detectors Die The invention relates to a temporarily installable, as an inductive measuring loop trained sensor on roads with a solid road surface, e.g. a concrete surface, for traffic detectors for the temporary detection of road traffic.

To measure the road traffic are only temporarily installed and stationary built-in sensors are used.

Rubber hoses are open as sensors that can be temporarily installed placed on the roadway. They work with pneumatic switches, their impulses the presence of.

Show vehicles. Furthermore, for short-term traffic measurements and in particular to determine the most favorable position of such sensors, e.g. for a traffic control, also designed as wire loops inductive measuring loops provisionally glued to the roadway or fastened with nails. After this wire loops - just like the previously mentioned air hoses - considerably If you step out of the lane, you are at risk of being driven over by vehicles exposed to damage, they can even get caught on the vehicles and are taken by them and thus cause accidents.

Fixed installed sensors avoid these disadvantages, they however, they are only useful if they are to be used for measurements over a longer period of time, or for a constant traffic control actually at the required, correct one Place were mounted. To do this, slots are first milled in the pavement, in these then laid inductive measuring loops and then the slots were potted.

But this is only economically justifiable if the loops should really be used for long-term measurements.

The invention is based on the object of a provisional sensor To install on the road surface that does not endanger traffic and from this can hardly be injured and which has a greater measurement accuracy than the aforementioned Has air hoses.

According to the invention, such a, temporarily installable, as Inductive measuring loop designed measuring sensor on roads with a solid road surface, e.g. a concrete ceiling, for traffic detectors for temporary detection of road traffic achieved in that it consists of a known, below coated with an adhesive, preferably a non-conductive rubber adhesive and on top with an insulating film, e.g. made of neoprene or Teflon, covered metal foil tape exists, which is in the form of the desired inductive measuring loop including its to the road bike taps leading out, e.g. by pressing or rolling, onto the pavement can be releasably stuck on again.

Such a thin one, glued to the road surface Tape practically does not apply at all, like that that there is traffic neither endangered nor handicapped. It can hardly even be done by the people rolling over them Wheels of the motor vehicles are damaged and should nevertheless be removed from the vehicle peel off the road surface, the weak band cannot cause any accidents in road traffic cause.

Further details of the invention emerge from the following Description of an exemplary embodiment.

For short-term traffic measurements and to determine the cheapest An inductive measuring loop in Band shape used. It consists of a metal foil tape with a non-conductive rubber adhesive coated and on top with an insulating film, e.g. is covered with neoprene or Teflon. This tape will begin at the roadside to the place where the desired inductive measuring loop should be located. there the tape is then laid out in the form of an inductive measuring loop, with right angles can be achieved by folding the tape over one another two or more times.

The tape is then returned to the starting point on the roadside returned. The infeed and outfeed at the roadside are the taps for the actual measuring device. In order to reduce the loop inductance to the for to implement the detector evaluation circuit usual and required size is in the box for the evaluation circuit, which is also provisionally set up on the roadside a corresponding transformer must be provided, which reduces the loop inductance to the appropriate size. The connection to the detector evaluation circuit then takes place in a manner known per se.

2 claims

Claims (2)

P a t e n t a n s p r ü c h e 1 Temporarily installable than Inductive measuring loop designed measuring sensor on roads with a solid ceiling, e.g. a concrete ceiling, for traffic detectors on the temporary detection of the road operator, characterized in that it consists of a per se known, below with an adhesive, preferably a non-conductive rubber adhesive, coated and on top with an insulating film, e.g. made of neoprene or Teflon, covered metal foil tape consists. that in the form of the desired inductive measuring loop sam their to the roadside taps leading out, e.g. by pressing or rolling, onto the pavement can be releasably stuck on. 2. Method of making a temporarily uninstallable, measuring sensor designed as an inductive measuring loop on roads with a solid road surface, e.g. a concrete ceiling, for traffic detectors for the temporary detection of the Road traffic, characterized in that a known, down with a Adhesive, preferably a non-conductive rubber adhesive, coatable and on top with an insulating film, e.g. made of neoprene or Teflon, coverable metal foil tape, E.g. made of aluminum, in the form of an inductive measuring loop including its around the roadside outgoing taps can be placed on the solid road surface, the tape each by folding two or more times over each other according to the shape of the loop can be interpreted and it can then be released by pressing or rolling on can be glued to the solid road surface.