Technology

Engineered for the worst day in the worst barn.

Flock Sentry is sized to the longest house, the densest flock, and a sustained mortality spike, while staying gentle enough to satisfy a welfare audit. The figures below are engineering design targets to be validated in field trials, not proven field results.

Studio render of the Flock Sentry robot: tracked base, low-profile arm with conforming grapple, sealed top bin, and sensor head

Specifications

Engineering specifications

Platform and mobility

DrivetrainDual-track skid-steer, low-ground-pressure tracked base
Footprint (stowed)Width <=0.70 m x length <=1.10 m x height <=0.50 m (target)
MassCurb ~40 kg, maximum gross ~52 kg with a full bin (target)
Patrol speedGoverned <0.45 m/s (<1 mph) in all modes
Ground pressure<=7 kPa at max gross, target <=5 kPa, to protect the litter pack
Motion limitsAcceleration <=0.3 m/s2, jerk <=1.0 m/s3, reduced turn rate near birds

Power and runtime

Battery~1.8-2.0 kWh LFP pack, 48 V class (target)
Active patrol endurance>=3 h on a charge within the working state-of-charge window (target)
RechargeTo 80% in <=90 min, with opportunistic top-ups for effectively continuous duty (target)
ChargingAutonomous return-to-dock, >=99% first-attempt docking target in dust and darkness
Operating duty>=80% of a 24 h day operating, balance for recharge and drop-off (target)

Carcass handling

ManipulatorLow-profile telescoping arm, conforming grapple gripper, rake draw-assist
Lateral reach~0.8 m per side at litter level to recover under-line carcasses
Carcass range40 g day-old chick to ~3.5 kg market broiler, heavy-end design average 2.8 kg
Sealed bin~30 L usable, auto-empties at ~12 kg payload or volume-full, leak-proof and odor-filtered
Pickup success>=97% robot-only within three attempts under good conditions (target)
Grip welfare guardForce-limited grip with slip detection, <=50 kPa contact-pressure cap on a live body (target)

Perception and AI

Sensor suiteRGB-D depth camera, 2D/3D LiDAR, long-wave thermal, near-IR illumination, mmWave radar
ComputeOn-robot NVIDIA Orin-class module, detection runs fully offline
Lighting rangeFull performance from full-house lighting down to 0 lux blackout (target)
Dust toleranceTargets maintained to ~5 mg/m3, graceful degradation to the ~11 mg/m3 worst case
Detection recallSingle-pass >=85%, cumulative across passes >=95% (target)
Pickup precision>=99% carcass-vs-object precision target, live-bird grasp design-zero

Navigation and coverage

MappingAutonomous SLAM, persistent per-barn map with a dynamic line-clearance layer
LocalizationSparse fiducials every 10-20 m anchor longitudinal position in the long tunnel
Coverage>=99% of accessible floor per sweep, >=2 full-floor patrols per day baseline
Sweep cadenceTarget full mortality sweep <=2 h, against ~12-24 h manual
Obstacle detectionDetects chick-sized and fast lateral movers, yields and stops rather than contacts
Safe-stop distanceBounded <=0.30 m at 0.45 m/s (target)

Environment and build

Operating temperatureFull performance across 15-35 C ambient
Humidity30-90% RH non-condensing, covering the barn band
Ammonia and corrosionContinuous NH3 to ~25 ppm spikes, conformal-coated electronics, resistant materials
IngressIP66 operating baseline, IP69K on wash-critical subsystems
AcousticSelf-imposed cap <=65 dB(A) at 1 m, at or below typical ventilation ambient (target)
CleaningCompatible with standard poultry-house disinfectants, deep clean fits the between-flock window

Software, connectivity, and app

AppNative iOS and Android plus a responsive web console on one backend
ConnectivityBarn Wi-Fi with cellular fallback, full autonomy and logging through a total outage
ReportingDaily mortality count in absolute birds plus spatial heatmap and trends
Data retentionMortality and event records retained >=49 days on the robot, longer in the backend
Access controlRole-based access with MFA and SSO, plus a documented API
UpdatesSigned over-the-air updates with A/B partitions and automatic rollback

Safety and compliance

Mobile-robot safetyDesigned to ISO 3691-4:2023 and ANSI/RIA R15.08
Functional safetyISO 13849-1, PLd personnel detection, ISO 13850 emergency stop
Market accessTargeting CE Declaration of Conformity, EMC per EN 61000-6-2/-6-4 and FCC Part 15
Welfare programsBuilt to satisfy NCC Broiler Welfare Guidelines and GAP 5-Step
Live-bird handlingZero live-bird mishandling target, enforced by the confirmation guardrail

All performance figures on this page are engineering design targets to be validated in commissioning and field trials, not proven field results. Where a value is described as a target or as designed to, treat it as a design goal. Final specifications may change as prototypes are validated.

Mission control for the barn

Flock Sentry is an autonomous robot that patrols your broiler house around the clock, removing mortality before it becomes a biosecurity risk.