Skip to main content

New Siemens loop detector functionality

An improved version of the SLD4 loop detector family is now available from Siemens. The upgraded SLD4 is said to include sophisticated length-based classification with configurable outputs, which can be set to activate when specific conditions are detected, such as large vehicles exceeding a predefined speed. As well as offering standard vehicle detection, the latest version of the SLD4 ca
November 11, 2013 Read time: 2 mins
Siemens SLD4 loop Detector
An improved version of the SLD4 loop detector family is now available from 1134 Siemens.

The upgraded SLD4 is said to include sophisticated length-based classification with configurable outputs, which can be set to activate when specific conditions are detected, such as large vehicles exceeding a predefined speed.

As well as offering standard vehicle detection, the latest version of the SLD4 can also be used in specialised bus, tram and Light Rail Transport (LRT) schemes and other similar applications requiring excellent detection accuracy.

Designed for maximum reliability and using the latest inductive loop detection algorithms, the SLD4 detector family complements the company’s full range of detection options. These include Selective Vehicle Detection and above-ground detection of vehicles and pedestrians.

According to Keith Manston, 2768 Siemens Mobility, Traffic Solutions head of product management, the enhanced SLD4 still delivers the self-tuning and fully automatic set-up features of the existing SLD4, ensuring optimum and reliable performance without interference. This is said to represent a significant advantage over manual setting of frequency and sensitivity parameters which can often be a challenge, with failure to achieve this correctly causing detectors to ‘chatter’ or otherwise fail to operate.

SLD4 detectors are fully compliant with UK specification TR2512 and provide four separate detection channels with full solid-state outputs for maximum reliability. For challenging or special applications, a PC support tool enables many aspects of the detectors’ functions to be accessed for specific deployment scenarios.

The detectors may also be powered from either AC or DC supplies. Low power requirements, with operation possible at voltages as low as 10V DC, makes support within battery powered equipment a viable option where needed.

For more information on companies in this article

Related Content

  • Variable message signs emerging from the shadows
    July 8, 2016
    Variable message signs are increasingly seen on the world’s motorways. World Highways looks at some of the latest developments UK manufacturer of temporary, solar powered variable message signs, Bartco UK, has unveiled what it says is the first temporary VMS designed for use within work zones. Bartco said that its HD Quattro was developed in response to feedback from customers requiring a product to affirm on-site speed limits for work zone vehicles. The unit is designed to show limited amounts of inform
  • Premiere in the Black Forest
    October 5, 2023
    One of the steepest sections of the B 500, an important road in the southern Black Forest, had to be renewed in the summer of 2023 – more precisely: the first kilometres behind the Triberg town sign, past the famous waterfalls. Asphalt paving specialists from Gebrüder Bantle GmbH & Co. KG were commissioned to resurface the carriageway.
  • Tilting Sensed
    February 6, 2012
    Tilting sensed Rugged inclinometers and tilt sensors are offered by Axiomatic, which has a series of new low cost units that can measure ±90º degrees or 360 degrees angular rotation. The angles are measured by a two-axis MEMS sensor, which senses acceleration caused by gravity. In a tilt sensor application, an out-of-range state can be transmitted as one of its outputs. The latest AX06025X series features CANopen networking, an RS-232 port or three Voltage outputs for communicating the angular measurement.
  • Iteris fuses video and radar
    May 2, 2012
    Iteris has announced Vantage Vector, the latest addition to its portfolio of Vantage vehicle detection solutions. The new device, which fuses the company's proven video detection with radar sensor technology to extend the range and richness of detection data, will begin shipping in the first quarter of 2012.