A smartphone as a proven alternative to Ex-cameras

Inspection and maintenance tasks in hazardous areas are always particularly challenging. To enable mobile workers to carry out their tasks in such Ex-zones, they need specially developed devices that are certified for use under these conditions. One of the most important devices for such applications is a camera that can be used, for example, to document damage to the plant or maintenance work that has been carried out. However, Ex-cameras that have been specially developed and approved for these applications represent isolated solutions that still require the transport of additional work equipment.

However, just as in the consumer segment, where compact digital cameras have long since been replaced by smartphones, there are proven alternatives to the use of Ex-cameras such as the explosion-protected Smart-Ex® 03 from Pepperl+Fuchs. Its main camera with 13 megapixels, LED flash and autofocus not only allows the recording of high-quality images, but also videos in full HD resolution. In addition, it’s possible to automatically identify objects or scan barcodes. The 6-inch display is also better suited for reviewing the images taken than the small and low-resolution camera screens.

The Smart-Ex® 03 is optionally available in a camera-only variant which has all its smartphone functions deactivated via kiosk mode, so that only the camera and associated applications can be used. This prevents users from intentionally or unintentionally installing unauthorized applications or changing the system settings. The restriction can be lifted by the manufacturer at any time via the kiosk mode, so that a 5G smartphone with all functions is available when needed, thus ensuring future proofing.

In addition to the camera functions, it is the supported communication standards and applications that make the Smart-Ex® 03 a versatile tool. Thanks to 5G, the quick transmission of large amounts of data directly from the site of operation to the cloud, to the company network or by email – where authorized by the company – is no problem. With a camera, on the other hand, data can often only be transmitted after returning to the office by physically connecting the SD card with the stored images to the office computer. Thanks to the desktop mode of the Smart-Ex® 03, the smartphone itself can function as a fully-fledged computer replacement in the office, so that there is no need to transfer data at all.

With the Smart-Ex® 03, mobile workers also have the option of contacting remote support by phone or video call at any time in the field. The front camera with 5 megapixels guarantees clear images. The freely programmable side button of the Smart-Ex® 03 can be customized for the appropriate application. For example, it can be configured as a push-to-talk or emergency call button so that mobile workers can quickly call for help at their current location in an emergency.

To ensure that the Smart-Ex® 03 can always be used optimally, even under adverse conditions, it features a so-called glove mode. This mode increases the sensitivity of the touchscreen so it can be operated precisely even when wearing gloves. Thanks to the double-tap feature, the device can be locked by simply double-tapping on the home screen. This eliminates the need to feel for the on/off button on the side, which can be a challenge when wearing gloves. In addition, both left- and right-handed workers benefit from this feature.

In contrast to an Ex-camera, the Smart-Ex® 03 also handles scanning tasks with ease thanks to its main camera with autofocus and phase detection. The eBARCODE-ML app provides users with a powerful, machine-learning-based solution for scanning barcodes or QR codes. The app can also be used to read RFID data via the device's NFC functionality. The data is only stored locally on the device; it is not transferred to other locations.

The performance of the main camera also enables the use of augmented reality applications for scenarios such as predictive maintenance or remote support. With the help of sensors, the smartphone recognizes the scanned object and displays all relevant technical data on the screen. This saves time, enables rapid response times and ensures precise maintenance and inspection of industrial objects. Even in emergencies, the AR application helps with a quick and easy scan of the environment to quickly locate fire extinguishers, rigging points or safe escape routes.

Google's Android Enterprise Recommended certification guarantees that the Smart-Ex® 03 will receive multiple Android upgrades and be provided with regular security updates. Starting in mid-2025, the smartphone will be delivered with the current Android 15 operating system version. As an Android Enterprise Silver Partner, it is also guaranteed that worldwide support will always be available to quickly and easily solve any problems that may arise.