Single source solutions

Everything from specification to production and embedded / processing software is done locally without production or development facilities abroad. This provides DOT with the unique capability to avoid supply chain pitfalls and allows us to tailor every aspect of our products exactly to the market needs.

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Data Processing and Presentation

The telematics and sensor data collected by DOT is transmitted to and processed by a collection of software services which have been developed by DOT engineers to be able to process billions of data points each day. The data gets parsed, analyzed, and enriched while passing through the DOT backend services and the output datasets are then stored in a high availability data store. This data can then be accessed either by low level access through the DOT Unified API, or via the web application DOT Link 4.0 which provides an intuitive user interface to explore the vast dataset and provide our customers with valuable insights into their fleet.

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DOT analytics backend

The DOT analytics backend is the CORE through which all data passes, providing interfaces for incoming X-Rayl Solar Pointer or Sensor data, as well as for third party telematics and sensor data. After accepting the data, a complex processing chain is applied to each individual dataset, independently of the incoming data format. This data is enriched by metadata like asset identification, geofences, mileage and much more. The final product is a complex data set containing all relevant information and statistics, which gets stored into the DOT data lake for querying through the DOT Unified API.

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DOT Unified API

The HTTP REST based DOT Unified API machine-to-machine endpoint gives unmatched direct access to all telematics, sensor and administrative data in the DOT analytics backend. From administrative tasks like creating new assets or geofences to querying every aspect of the enormous data pool of telematics and sensor data all functionality available in the DOT Platform is accessible through a single API endpoint. This allows our customers to easily integrate DOT tightly into their internal ERP systems using an industry standard interface for data access and management.

Since securing our customers data is of utmost importance, all functionality of the DOT Unified API is protected by the highest authentication and encryption standards.

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DOT Link 4.0

DOT Link 4.0 is the new Web Front End for our individual users, which builds on top of the features of the DOT Unified API. It gives our users the easy and comprehensive access to their fleet analytics, as well as telematics and sensor data that they have come to expect, while providing improved speed and overall performance.

Track & Trace of assets, administrative tasks like adding new users, assets, groups, geofences or pairings as well as creation of geofences and data sharing have been streamlined to provide a more efficient and thorough way of managing operational data and keeping track of your fleet's current status. The user interface has been overhauled to be more intuitive and provides our customers a customizable user experience free from unnecessary feature bloat.

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Pairing app for Pointers, Assets and Sensors

Convenient assignment of the sensors of a pointer by the assembly personnel.

X-Rayl Pointers do not require activation as they use renewable energy sources. Upon opening the packaging, the Pointer will automatically be activated and configured. Only the assignment (pairing) to a railcar must be made either in the web portal or by using the App (X-Rayl Scanner available in the relevant App-Store).

X-Rayl Scanner is an app for mobile devices to pair an X-Rayl pointer with an asset (car), an X-Rayl Pointer with an X-Rayl Sensor, or an asset with a tag. Prior to executing any of these actions, the user is required to authenticate by scanning an authentication code or to sign in with user and password from within the app. All transmissions between the app and the DOT server are encrypted. The X-Rayl Scanner App is available for Android™ 5.0 or later and iOS® Version 11.0 or later in the corresponding store. A link to each of these app stores is found at the settings view in X-Rayl DOT Link Portal.

View the iOS® version

Data Enrichment

When processing telematics and sensor data the key to generating valuable insights is data enrichment. Through our long-term involvement in the rail and container business, we at DOT are able to create real world value for our customers, through analysing and enriching the huge amounts of data collected each day. From high accuracy mileage calculation to geofencing or assessment of operational efficiency, the benefits derived from analytics save our customers time and money each day.

Data Enrichment turns raw data into useful information. Mileage is calculated from individual positions and thus maintenance is optimised, flat spots on wheelsets are detected from vibrations and derailments are avoided, exceeded temperature limits lead to alarms and to the protection of life and infrastructure, loading conditions are detected and lead to efficient dispatching.

The right application makes digitalisation useful!

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Mileage calculation

Rail based assets are susceptible to fluctuations in utilization leading to large discrepancies in the distance traveled each month. The assets might stay stationary or travel many thousands of kilometers and be exposed to considerable stress. Currently the rolling stock with all its components must be maintained at regular intervals, not least for safety reasons. If the mileage of each individual wagon is known exactly, maintenance can be carried out in a targeted manner and does not have to be carried out blindly based on fixed intervals, which allows for considerable savings potentials to be realized.

DOT has developed a tested a verified algorithm that allows the mileage to be recorded with an accuracy of over 98%.

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Start-Stop recognition

Detects whether an asset is moving or has just stopped.

Pointers from the S17 series upwards have an integrated high-precision acceleration sensor that detects any form of movement. With the "start-stop" feature, the transmission frequency can be reduced at standstill to save significant energy. In addition, the Start and Stop events are reported immediately. The reduction of the transmission interval is entered with a configurable factor. For example, by entering factor 48, a travel transmission interval of 30 minutes (one message every 30 minutes) can be increased to 24 hours at standstill.

When the object (container, freight wagon, etc.) starts, the trip is reported within 2 minutes. The standstill is reported after about 5 minutes.

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Geofencing

Geofencing generates an event or alarm when an asset (container, freight car, etc.) enters, exits, or crosses a geographical barrier or zone. The geo-zones can be freely defined, either with an editor in the DOT-Link platform or via the associated DOT Unified API endpoint. Notifications can be configured for each type of geofencing event, to instantly notify users about important events.

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Brake health indicator

The load on freight wagons depends on a variety of factors. A significant factor influencing the wear of the brake system is the meters of height covered. To better estimate this wear and thus optimise maintenance, DOT has developed the X-Rayl DOT-Link Altimeter algorithm, which precisely calculates the meters of altitude covered based on the distance travelled.

The basis for the altitude meters travelled is a high-resolution digital altitude model with which the distance travelled is compared. To enable a high degree of accuracy, various route characteristics, e.g. tunnels, are specially treated. This approach is far superior to a purely GPS-based solution due to the data accuracy and allows for the first time a view of the actual wear caused by the topography.

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Detection of long idle times

Alerting in case of long idle times.

Our customers are able to monitor the standing times of their assets (containers, freight wagons) and to generate automatic alarms if certain maximum times are exceeded. In combination with geofencing and load detection, this feature allows for quick notification only where and when desired and necessary.

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Analysis of wagon turnaround and times

Ongoing analysis of wagon movements based on predefined locations and routes.

Wagon movements and standstills are the basic indicator of the efficiency of the transport of goods or raw materials. Wagons or containers are rented and usually cost money over time. Wagons or containers that wait too long for filling or emptying indicate potential for improvement. This feature can be used to display sophisticated statistics and tables that can quickly reveal inefficiencies.

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Map matching

Map matching provides additional GIS information beyond the geographical position.

The geographical coordinates (longitude and latitude) are clearly defined but are not necessarily usable in this form immediately. Often, they are subject to inaccuracies. Map matching compares the measured positions with map material and enriches the data sets with additional information such as country or the nearest town. Thanks to Map Matching, you can find out on which track or road segment your assets are located or exactly which route they have travelled.

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Tank carload detection

Tank carload detection with an algorithm for analyzing the temperature variation over time.

Tank cars are often equipped with temperature sensors. If this is the case, loading and unloading can be detected by a sophisticated algorithm which compares the temperature behavior with stored empirical values and thus allows an accurate estimation of the loading condition. If only the loading condition and not the exact weighing is required, this performance feature renders more complex systems, which detect the filling level via immersion rods or similar, obsolete.

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Load monitoring

By deploying an X-Rayl Sensor S3DST on a railcar, the distance between the wagons superstructure and the wheel set can be measured with a precision of millimeters. From the measured data, it is possible to determine when the wagon is being loaded or unloaded, as well as provide a rough estimate on the loading level including overload detection.

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Overload detection

By capturing the data of an X-Rayl Sensor S3DST on a railcar not only the loading state (see "Load monitoring") can be detected, but also a potential overload, which potentially leads to damage on the railcar.

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Heating analysis for containers / tanks

Heating start and end can be recorded automatically, e.g. for billing purposes.

Tank containers and railcars are used to transport various liquid substances. For some of these substances, their temperature must be within specified limits. To achieve this, tank-containers must be heated, for example. This is done by means of a pipe which runs inside the tank-container and into which hot water or hot steam is pumped. Since this process involves costs and is also invoiced, it is advantageous to record the exact start, the temperature of the heating medium and the end of the heating process. This is possible with this feature. For this purpose, a sensor box is screwed onto a specially developed device and attached directly to the steam or water pipe. A gradient recognition system detects the start and end of the heating process with great precision and records the temperature profile. This can then be viewed and reused in the DOT-Link web portal.

Statistics and Reports

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Geostatistics

Different regulations require e.g. the registration of the driven kilometers on country level i.e. how many kilometers the car has driven in Germany or Hungary, how many of them were loaded or unloaded. In order to do this, not only the route has to be recorded exactly, much more a marking has to be made at each border crossing to enable geo-statistics.

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Analysis of asset usage rate

Recognition of whether assets are in use or not.

A depot is a special geofence with which the rate of use can be calculated. If an asset is located within the depot, it is considered unused, for example. If it is located outside, it is considered to be used. With this feature, statistics on the usage can be easily stored for each asset.

Asset Condition Monitoring

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Advanced shock detection

Simultaneous acquisition of accelerations with different configurations and filter settings.

The X-Rayl pointers as well as the X-Rayl Sensor S3ACC-D include three high-precision 3-axis accelerometers featuring a wide array of detection ranges. All sensors have been specifically chosen to cover different shock detection scenarios, that can be expected in the railway environment, from measuring small changes in the mg range as well as shocks up to 200g with a high resolution. Different configurable frequency filters allow not only the detection of relatively slow shunting shocks, but also the detection of fast shocks which might lead to superstructure damage. Adjustable thresholds allow immediate alarming when exceeded.

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Derailment and theft detection

Early alarm in case of excessive change of the orientation of assets.

X-Rayl Pointers have acceleration sensors that detect the precise orientation of the asset they are mounted to. In the event of a derailment, the orientation of the asset changes significantly, which makes early alarming possible. Dismounting the X-Rayl pointer from the asset also leads to an alarm (theft detection).

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Wagon Health Indicator

Since rail assets are subject to very diverse conditions and usage patterns, it is difficult to ascertain whether a railcar is in need to extra maintenance. Just looking at the travelled mileage does not provide a comprehensive picture of the current state of the car since the percentage of loaded/unloaded travel, track conditions and various other parameters can influence the state of an asset. To provide an insight into the current “health state” of an asset the X-Rayl Pointers are configured to regularly measure the vibrations patterns occurring on the asset. Since damage to the wheel sets (e.g., flat spots), bogies or superstructure change the vibration pattern in discernible ways, DOT has developed an algorithm to detect these changes. The final product is the Wagon Health Indicator which starts at 100% for newly equipped wagons, and if damage is detected the indicator is decreased over time. For each asset that is equipped with a X-Rayl Pointer this value is calculated on a daily basis, providing our customers with a comprehensive overview of the health of all parts of their fleet, allowing them to identify assets that might be in need of extra maintenance. In case of longer cars with more than 2 bogies, the mounting of additional vibration sensor S3VIB-D might be needed to capture a full “picture” of the wagons state.

This index is a measure of the vibrations on board and is automatically recorded for a few seconds each time the vehicle travels above 40 Km/h. The index is used to measure the vibration level on board. This provides a practical indication of the smooth running of the car fleet and its development over time. If this index suddenly deteriorates, then it is reasonable to assume that a flat spot has occurred on one of the wheel sets.

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Brake Health Indicator

The timely maintenance of a railcars brake system is an important factor in keeping the cars operational and working at optimal utilization, since unplanned maintenance can lead to severe interruptions in logistics flows. To monitor the utilization of the brake system DOT has developed an algorithm that analyses the data generated by an X-Rayl Sensor S3PRS-D installed in the brake air conduct of a rail asset. Every time the brake is applied the pressure in this air conduct rises accordingly, a stronger brake activation leads to a higher pressure, then when brakeing lightly. By analyzing the pressure profile and the brake application frequency, which is higher in hilly or mountainous terrain, the algorithm can estimate the resulting brake wear of each asset over time. This Brake Health Indicator is calculated continuously for each equipped asset, allowing our customers to predictively send cars with high brake utilisation to a workshop for brake maintenance, before they are put out of service due to worn down brakes.

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Advanced event handling

Input of own alarm thresholds of sensors.

Via the DOT-Link web portal, events (geofence, door openings, etc.) can be linked by default to SMS or e-mail addresses who will be alerted when an event occurs. The Advanced Event Handling feature is necessary if, for example, thresholds such as temperature limits are to be set that require a threshold value to be transmitted to a sensor. This is typically the case when a temperature sensor of a tank container is to monitor.

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Sub 1GHz preparation

Overcome larger distances of several wagon lengths by means of "Sub 1GHz”.

From today's point of view, it is not yet clearly defined which technology will be used for intra-train communication, i.e. communication between freight wagons and/or the locomotive. In Working Group 4 of the ITSS, it is currently being considered to solve this via the 2.4 GHz interface, in which each telematics device serves as a relay to bridge the length of a train in several hops. The LM-EJ takes this uncertainty into account by providing a dedicated radio transmitter and receiver for sub 1Ghz with a power of 20 dBm. Although an external antenna is required, the Sub 1Ghz offers several advantages over the 2.4Ghz spectrum.

Range of Sub 1Ghz Wireless: Sub 1Ghz offers more range than 2.4Ghz. Sub 1Ghz wireless transmission provides 1.5-2 times the distance coverage than 2.4Ghz spectrum. In addition, the Sub 1Ghz wireless spectrum has a Long-Range mode, which can have a range of more than 100 km, if the power is sufficient.

Lower power consumption: wireless sub 1Ghz RF requires a lower power signal from the transmitter-receiver compared to the 2.4Ghz spectrum to maintain the same output power signal at the receiver.

Interference: the wireless sub 1Ghz spectrum can handle interference better. This is because they operate at a lower frequency and use fewer existing applications with this spectrum.

Data Sharing

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External Interface Package

Transfer data to third-party systems.

For a long time, the compatibility of telematics applications from different providers was not guaranteed because there was no standardisation of data exchange. Initiated by the dialogue between the members of the Technical Innovation Circle for Rail Freight Transport (TIS) and telematics system providers, the Industry Platform for Telematics and Sensor Technology in Rail Freight Transport (ITSS) was founded, which deals with the standardisation of interfaces in the rail telematics sector. DOT participates in ITSS and can provide telematics data compliant with the ITSS standard.

In addition, the DOT Unified API offers a comprehensive interface to all data not covered by the ITSS standard. Here, both active querying (pull procedure) and setting up notifications of data changes (push procedure) are possible, which enables close integration into internal processes.

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Configurable Data Sharing

Enabling the sharing of asset data via API or DOT-Link.

When renting out assets to customers it is of utmost importance that only the asset data of the agreed rental period shall be available to the customer. The DOT Unified API and DOT Link allow asset owners to share asset data with a fine granularity of permissions and automatic limitation of share time frames according to certain criteria. Since the administration of the data shares can be done entirely done via the DOT Unified API, coupling the shares to internal contract data can be achieved with relative ease. This way no duplicate effort has to be made to manage data across internal systems and the DOT platform.

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Dynamic user management

Provides user management functionality via API or DOT-Link.

Whether it's creating a new user or changing a password, with the toolkit provided by the DOT Unified API and DOT-Link administration of user accounts in the DOT platform is easy and powerful. User accounts active for your organization can be administered fully through the provided interfaces and can be coupled to internal systems. This allows to, for example, to automatically deactivate user accounts of people leaving a company of work group and provides full transparency of all active accounts and user actions.


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