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

  • New asphalt paving technology being unveiled
    October 28, 2016
    So far 2016 has been an important year for asphalt paver development, with a huge array of improved designs coming to market - Mike Woof writes. With both the World of Asphalt and bauma exhibitions during 2016, it is perhaps no surprise that a wide array of new asphalt pavers have been unveiled. Major manufacturers have introduced new models in both US and European configurations. Ammann, Atlas Copco, BOMAG, Caterpillar, LeeBoy, Roadtec, Vögele and Volvo CE have all launched new pavers, either in European o
  • Dual speed control for the V-Maxx G2 hopper spreader from SnowEx
    November 7, 2017
    SnowEx’s latest hopper spreader, the V-Maxx G2, for ice control applications includes a dual variable-speed control more compact than on previous models. The manufacturers says that the digital, self-diagnosing control unit allows independent adjustment of spinner and auger speeds, while convenient buttons offer easy control of the standard vibrator and optional accessories. It includes an auto reverse function to easily clear auger jams. The control requires only a single four-pin wire to enter the cab,
  • Exclusive Americas licensee of OLEV technology
    May 2, 2012
    Boston-Massachusetts headquartered OLEV Technologies has been appointed the exclusive north and south American licensee responsible for commercialising the OLEV (On Line Electric Vehicle) technology, a zero emission green transportation technology, invented at the Korean Advanced Institute of Science and Technology (KAIST)."OLEV technology is a proven, safe and cost-effective green transportation solution that can be deployed today," said Dr. Hikyu Lee, president & CEO of OLEV Technologies.
  • Innovative control system for concrete pavers
    February 14, 2012
    Wirtgen has developed a novel control system for use on its concrete paving equipment. Matthias Fritz is the product engineer at Wirtgen tasked with developing the system. The new AutoControlpackage uses GPS technology to provide guidance for the machine's steering functions. Fritz added, "It has an augmentation centre for vertical control because it requires millimetre accuracy for height." This 3D control system is for use with the firm's SP15 and SP25 slipform pavers and is said to be a user-friendly, co