PANTOBOT

Real time, smart, Pantograph analysis.

PANTOBOT 3D is a fully automated three-dimensional pantograph inspection system which allows the network operator to make real time decisions based on true pantograph condition. It is well understood a damaged pantograph has the potential to tear down the overhead line resulting in long delays and widespread service disruption. Typical examples of pantograph anomalies include excess chipping, increased wear and, cracking of the carbon strips.

Features & Benefits

the power of machine learning

PANTOBOT 3D represents a step change in the image capture, processing and analysis of train pantographs. Conventional 2D technology relies on a subjective assessment by a skilled engineer but 3D pantograph reconstruction allows the machine to automatically undertake quantitative analysis of the carbon strips to the nearest millimetre. Machine learning algorithms trend individual pantograph models to predict when the pantograph is approaching end of life ensuring maintenance schedules are fully optimized.


  • Analysis on every axis
    PANTOBOT 3D can automatically analyse the degree of carbon wear, chipping and cracking on every axis (X, Y, Z) to millimetric level. 2D systems rely on the skill of the operator for pantograph analysis but this is performed automatically by PANTOBOT.
  • Automatic pantograph recognition
    It is common for different trains with different pantographs to operate on railway networks. But, by using the power of machine vision, PANTOBOT 3D is able to automatically classify each pantograph model for analysis. This enables the railway operator to programme different alarm thresholds for different types of pantographs.
  • Machine learning
    Predictive maintenance is a key element of asset management. Pantobots unique machine learning capability is able to monitor and trend pantograph health and provide the network operator with information precluding pantograph failure.
  • No loss of resolution with train speed
    PANTOBOT 3D takes one high definition image of the pan head at any speed up to 300km/h with no loss of image resolution (0.4mm). Conventional 2D and 3D systems take multiple shots of the pan head for analysis. This approach considerably reduces image resolution with increased train speed making it more difficult to identify cracking and chipping at an advanced stage.
  • Uplift and weather station
    Pantograph uplift is an important measurement as it infers the pantograph is applying too much or too little force on the contact wire. PANTOBOT 3D is able to provide this feature as a standard machine vision feature – no additional modules or measuring devices are required. Weather station modules can be added to determine wind speed and direction.
  • Web based interface and automated alerts
    A web based interface allows the user to access PANTOBOT 3D via any secure device connected to the internet. Our intuitive platform allows the user to define the operating limits of each pantograph model and set individual alarm thresholds. Pantograph images can also be viewed for further analysis.
  • Ease of installation
    PANTOBOT 3D has been designed as a modular system for ease of installation and maintenance. The system can be installed on vertical poles either side of the running railway or fixed to an overhead structure. One distinct advantage of a vertical pole installation is the railway can still operate as normal and no possessions or isolations are required.