ObjectGuard (monitoring system)

Power over fiber

The camera head is powered only by optical power delivered over the standard single mode optical fiber to ensure continuous operation.

Energy harvesting

The delivered optical power is converted to electrical energy and stored in the internal battery to power all electrical equipment in the optical head.

Complex monitoring system

The ObjectGuard provides not only an interrogation unit, optical head, and retroreflector but also data storage and basic data processing.

Advanced customization available

The monitoring system can be modified to meet your project’s needs, such as the desired functionality, interoperability, and others.

Long term field operation

ObjectGuard is highly durable and reliable even in demanding environments. This makes it especially suitable for a long term field operation.

Real-time monitoring 24/7

The unit monitors any issues that may arise in real time, alerting you immediately if necessary. Furthermore, it enables you to work with collected data right away.

Manufactured in-house

The ObjectGuard is made by Safibra, which gives us complete control over the product output, quality, logistics, production costs, and support and enables us to customize the product whenever it is necessary.

Analysis and configuration SW

The system is supplied with analysis and configuration SW, which are both platform independent and feature an embedded processing board with all decision functions.

Usage of existing fiber optic network

Installation of an expensive sensor infrastructure or availability of electrical power are not necessary.

Passive optical head

The optical head is powered over the optical fiber without any need for a power supply. Therefore it easily monitors places without electricity and hazardous or hard to reach areas.

Long distances

Optical head at the place of monitoring can be located up to 10 km from the interrogation unit. The interconnection is done using an existing optical network over standard telecom fibers.

SSH and web interface

The configuration of the system, sensors and alarms, frequency of measurements and self data logging on an integrated SSD are possible by SSH and the web interface.

Fully autonomous system

Thanks to an embedded PC and a web server running on Linux, the ObjectGuard is independent of external devices and control procedures.

This monitoring system comes in three product versions depending on the required object distance and the corresponding range of the vertical movement.

Version 1 object distance: 1.5 – 6 m, vertical movement range: ±10 – ±16 mm

Version 2 object distance: 4 – 16 m, vertical movement range: ±15 – ±25 mm

Version 3 object distance: 6 – 24 m, vertical movement range: ±20 – ±40 m

Example of a typical setup. Choose the project scale that you prefer.

This product can be used in different sectors. Choose the one of interest to you.

Structural health monitoring

Structural health monitoring of tunnels

Real time remote monitoring system continuous monitoring of tunnel’s structural health and deformation trends in real time 24/7.

Structural health monitoring Infrastructure

Structural health monitoring of bridges

Real time remote monitoring system for bridges to protect and maintain these infrastructures.

Structural health monitoring Infrastructure Emerging sectors

Structural health monitoring of railway transition zones

Continuously monitor the structural health of the railway transition zones in real time and detect the changes at an early stage.

Structural health monitoring Security Infrastructure Industry Emerging sectors

Critical infrastructure security

System for protecting critical infrastructure from damage or destruction, providing preventive security measures in the form of intensive monitoring.

ObjectGuard Interrogation Unit

Optical

Maximal number of optical heads:	2
Maximal output power per channel:	0 dBm
Maximal input power per channel:	-14 dBm
Dynamic range (DC coupled input):	50 dB (SNR = 0 dB)
Sensitivity (DC coupled input):	-64 dB (SNR = 0 dB)
Sampling frequency:	1 kHz
Bandwidth:	500 Hz
Optical fiber connector:	FC/APC

Electrical, Environmental and Mechanical

Power supply:	12 V DC (AC adaptor included)
Power consumption:	< 80 W
Operating temperature:	0 °C to 40 °C
Operating humidity:	< 80 %, non-condensing
Dimensions:	19″ rack 3U Without front panel: 131 mm x 383 mm x 436 mm With front panel: 131 mm x 383 mm x 482 mm (mind the space for connectors and air ventilation – 50 mm)
Weight:	9.3 kg

Other

Embedded PC/SSD Disk:	Yes/Yes
Communication protocol:	TCP/IP, RS-232, Modbus
Interfaces and ports:	12 V DC, IN/OUT, RS 232, HDMI, 2x USB 3.1, RS 485 IN/OUT (on request), Ethernet

Optical head

Distance from the optical head to the retroreflector:	1 – 24 m*
Product versions:	depends on the required object distance (1.4 – 24 m) and the corresponding vertical movement range (±10 – ±40 mm)
Measurement frequency:	max 100 Hz
Operating temperature:	-20 °C to 50 °C
Measurement accuracy:	1 % of the range
Measurement range:	±10 to ±40 mm*
Measurement resolution:	0.1 % of range
Connector:	FC/APC, other on request
Max. distance to the interrogation unit:	10 km fiber optic cable length
Central wavelength:	1550 nm
Housing material:	painted aluminum
Dimensions:	230 mm x 200 mm x 110 mm (excluding the tube for optics)
Protection class:	IP65 (IP66 excluding optics)
Weight:	4. kg for IP66

Retroreflector

Dimensions:	25 mm (active aperture diameter)
Material:	aluminum, glass

Mounting plate

Dimensions:	typically 100 mm x 50 mm
Material:	aluminum, stainless steel
Mounting method:	permanent magnet, screws, glue (according to target features)

Note: It is necessary to choose the corresponding option for the embedded optics. We reserve the right to change these parameters.

Datasheets: ObjectGuard – Datasheet
(pdf, 879 KB)

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Diagrams: ObjectGuard – Diagram
(jpeg, 83 KB)

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ObjectGuard (monitoring system)

Dynamic vertical movement measurement

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