Overview’s R&D team focus on new and innovative technologies to develop advanced, highly agile and unique drive solutions.  Our drive to apply advanced technologies to a commercial price point enables Overview to provide customers with unique and differentiating products that are brought to market rapidly.

The company leads UK and international collaborative research programmes with academic and industrial partners to ensure that Overview and its customers will benefit from emerging technologies.

Servotorq Direct-Drive, Integrated Servo Motors

Leto MotorOne of Overview’s core technologies lies in a unique family of intelligent direct-drive, brushless DC (BLDC) motors. The Servotorq family of motors includes the Titan, Leto, Miranda,  Atlas and Artemis motors which cover a range of power, torque and size combinations.  The Servotorq family has been developed by Overview from the ground up specifically to deliver precise, smooth and silent drive for cameras and other specialist sensors. Overview is the only company supplying this advanced integrated direct-drive technology.

Overview Servotorq integrated servo motors overcome some of the problems associated with stepper motors, which have traditionally been used to drive standard PTZ cameras and sensor motion systems. In demanding applications, stepper motors are often found inadequate in terms of poor accuracy, backlash and excess noise.  Steppers also require additional components such as drive belts and gears which add to design and manufacturing complexity and cause unreliability and shorter operating life.

By contrast, Overview’s unique servo motors use advanced technology based on state-of-the-art magnetic modelling and highly accurate positional feedback. The motors deliver radically improved performance using fewer components in a smaller, more compact footprint making them easily incorporated into a wide range of products.  Direct drive eliminates all belts, gears, pulleys and reduces the number of bearings, which reduces the cost of assembly and improves reliability.

Titan motor – Is the smallest of the family and delivers a torque of .04Nm.  It has a long history of proven reliability with hundreds of thousands produced.

Leto motor –  Leto is Titan’s athletic brother and produces a torque of .09Nm by using Overview’s proprietary Servotorq™ technology while staying within the same footprint as Titan.

Atlas motor –  The Atlas is currently Overview’s most powerful motor and is able to deliver a torque of approx. 2Nm – ideal for driving heavy-duty systems such as the Hydra™ PTZ.

Miranda motor –  Miranda provides the same precision and performance in a 1Nm package making it ideal for pointing large sensors where SW&P remain a constraint.

Artemis motor – Artemis is the lastest in Overview’s iBLDC motor line up. Growing torque to 3Nm makes Artemis suitable for heavier payloads and the addition of updated Servotorq II technology improves the servo performance for the most demanding autonomous applications

We are actively designing new motors that will extend this range.

TotalDrive™

Totaldrive optimised Pan and Tilt drive package

TotalDrive is an optimised Pan and Tilt drive package with PCB space for OEM customer electronics.

This allows for an extremely cost-effective design and the fastest possible route to market.

Distortion-Free Dome Cameras

A difficulty facing dome cameras is that of distortion in the dome bubble. The camera does not normally look through the optical centre of the bubble and is unable to look upwards (above the horizon) without severe distortion. To address this, Overview launched the Limpet™ high-precision, wall mounted PTZ dome. Limpet was designed to have a small profile to blend into its environment and use a canted bubble. This minimised distortion and allowed the camera to look upwards.

Blackball concept dome with a completely spherical design.

The company’s Blackball™ concept camera takes this design approach further with a completely spherical design. Protected as a registered design and patent-pending, the Blackball takes the conventional dome bubble together with a hemispherical back shell and combines them with a canted split line.

This has two advantages – firstly the camera has a wide tilt excursion while looking all the time through the optical centre of the bubble to eliminate any distortion, and secondly, all the internal fixings are part of the housing, cast or moulded in place. This simplifies assembly and minimises components; it is inherently very low cost and the units are relatively small.

Limpet high-precision PTZ dome

Limpet high-precision PTZ domes