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PUDU BellaBot – Premium Delivery Robot with Bionic Design

The PUDU BellaBot is an indoor autonomous delivery robot engineered for restaurants, hotels, and commercial service environments, combining laser and visual integrated SLAM positioning with a cat-inspired design that received the Good Design Award 2022. Four smart trays carry up to 10 kg each, a hot-swappable 25.6 Ah battery delivers 12 to 24 hours of continuous service, and a triple RGBD depth camera array detects obstacles at up to 5400 times per minute — all in a 55 kg, 1290 mm tall chassis built from aviation-grade aluminium alloy.

Battery Life 12–24 h (hot-swappable 25.6 Ah pack)
Tray Payload 10 kg/layer × 4 trays
Navigation System Laser + Visual Integrated SLAM
Obstacle Detection Frequency Up to 5400 times/min

The image below shows the BellaBot in its award-winning cat-inspired form, reflected in a mirror to highlight the four tray levels, animated LCD face, and the characteristic cat-ear head module that earned it a Good Design Award 2022 distinction.

PUDU BellaBot delivery robot with cat-ear head module and four illuminated tray levels reflected in a mirror, displaying the Good Design Award 2022 badge

Good Design Award 2022: Hospitality Technology That Guests Remember

Design in a service robot is not cosmetic — it determines whether guests engage with the machine or keep their distance. BellaBot was built around that insight. The cat-inspired silhouette, the animated 10.1-inch LCD face cycling through dozens of original expressions, and the soft-glow LED strips running along each tray edge combine into a visual identity that feels welcoming in a dining room rather than industrial. The shell is moulded from ABS reinforced with an aviation-grade aluminium alloy chassis, keeping the total weight at 55 kg while providing the structural rigidity needed for multi-shift commercial use across a rated service life of 5 years.

Six distinct operational modes are built in: Delivery, Cruise, Direct Delivery, Birthday, Special, and Guiding. A restaurant's needs shift throughout the day — table service at lunch, promotional cruising during happy hour, guest escorting at dinner. One robot adapts to every scenario without reprogramming, simply by selecting a mode on the on-board Android touchscreen.

Dual SLAM Navigation: The Robot That Never Gets Lost

Navigation reliability separates a useful deployment from an expensive experiment. BellaBot uses laser and visual integrated SLAM positioning — two independent localisation methods running simultaneously. The LiDAR component generates a 360° environmental map with centimetre-level precision; the visual component anchors the robot to ceiling-mounted AR Markers for absolute position correction. In practice, this means BellaBot maintains accurate positioning even when furniture is rearranged, partial obstructions block line-of-sight to Markers, or ambient lighting shifts between service periods. The image below illustrates BellaBot's 360° LiDAR scanning radius as it navigates a fully occupied restaurant floor.

Top-down 3D render of PUDU BellaBot in a restaurant with 360° LiDAR scanning radius visualised as a large blue and cyan ellipse encompassing surrounding tables and chairs

Advanced Suspension: Smooth Passage Over Real-World Floors

Restaurant and hotel floors are rarely perfectly flat. Transitions between tile and carpet, expansion joints, and uneven grout lines create micro-obstacles that destabilise rigid-chassis robots, causing tray oscillation and spilled dishes. BellaBot's chassis incorporates a dedicated spring-damper suspension in the drive wheel assembly, absorbing vertical displacement continuously up to 10 mm. Dishes stay level; liquid-filled glasses remain upright. The cross-section view below reveals the spring coil and damper geometry embedded within the drive module.

Cutaway cross-section of PUDU BellaBot chassis revealing the spring-coil suspension mechanism inside the drive wheel assembly, illuminated in blue against a dark background

Three-Layer Safety Detection for a Crowded Dining Room

Triple RGBD Camera Array: 0.5-Second Response Time

The most hazardous obstacles in a restaurant are not furniture — they are moving human legs, children below sensor height, and items left on the floor unexpectedly. BellaBot counters this with three front-facing RGBD depth vision cameras in the lower chassis ring, delivering what PUDU describes as the strongest 3D perception available in its class. The robot can accurately detect an obstacle and initiate a full stop with a response time of just 0.5 seconds. The image below shows the three RGBD apertures mounted in the blue accent ring at the base of the head module.

Top-down close-up of PUDU BellaBot showing three RGBD depth camera apertures in a blue accent ring on the lower head housing, with PUDU logo on the white body

Detection Frequency: Up to 5400 Scans per Minute

Detection frequency determines how quickly the robot reacts to dynamic obstacles — a guest pushing back a chair, a waiter crossing its path. BellaBot's sensor stack achieves a refresh rate of up to 5400 times per minute, producing a new environmental scan approximately every 11 milliseconds. The infographic below shows this figure alongside the directional scanning cone projected in front of the robot.

Dark-background infographic of PUDU BellaBot with a green front scanning cone and the label: obstacle detection frequency up to 5400 times per minute

Detection Arc and Range: 192.64° at Over 10 Metres

Coverage geometry is as important as refresh rate. BellaBot's front detection arc spans 192.64° — wider than the robot's own footprint — with a detection range exceeding 10 m. This means BellaBot begins planning an avoidance trajectory well before an obstacle enters the minimum stopping distance, producing the smooth path corrections that characterise well-deployed service robots. The diagram below illustrates the full sensor coverage hemisphere.

Diagram showing PUDU BellaBot obstacle detection geometry: front detection angle up to 192.64° and front obstacle detection range exceeding 10 m, with a green hemisphere overlay

Multimodal Human-Robot Interaction

Smart Facial Expressions: Dozens of Original Animations

Guests respond differently to a robot that appears to have a personality. BellaBot's 10.1-inch LCD runs a library of dozens of exclusive original facial expressions — alert, happy, curious, sleepy, and several degrees of annoyance — activating contextually based on operational state, touch inputs, and task completion. The expression strip below demonstrates the breadth of the animation library, from wide-eyed alertness to winking cat-eye contentment.

Strip of PUDU BellaBot animated cat-inspired facial expressions showing spinning eyes, winking, neutral, sleepy, and others, with the physical robot head centred

Haptic Feedback: A Touch the Robot Feels

Each ear and the top surface of BellaBot's head incorporates a haptic feedback touch sensor. A single stroke triggers a friendly response; repeated touches escalate through increasingly enthusiastic reactions; too many rapid touches produce a mild expression of displeasure. This loop creates a memorable moment for guests — particularly families with children — turning each delivery into a brief positive interaction for the venue. The image below shows the haptic sensor layout with active glow zones on the head module.

PUDU BellaBot cat-ear head module viewed from above showing haptic feedback touch sensor areas glowing blue on each ear, with the red emergency stop button and navigation button visible

Light Interaction: Status Communicated Without Words

BellaBot's second-generation LED light strips run along every tray edge and the base ring, cycling through distinct patterns to signal operational status — tray ready, task active, charging, or error — without requiring staff or guests to read a screen. The tray-level LEDs highlight exactly which tray a guest should collect from, eliminating confusion during multi-destination deliveries. The three-panel image below captures the emergency module, tray edge illumination, and the cat-ear contour across different states.

Three-panel image of PUDU BellaBot light interaction: left shows the head emergency area with blue arc, centre shows four tray edges with blue LED strips, right shows the cat-ear contour in white illumination

Intelligent Trays with Infrared Sensors

Each of BellaBot's four trays integrates an infrared presence sensor that detects whether the tray is loaded or empty. When a tray is cleared, the sensor signals the robot — with Tray Sensor Switch enabled, BellaBot automatically ends the current table task and moves to the next assignment 5 seconds after the last dish is removed, with no staff input required. The modular quick-disassembly structure means field replacement of a tray unit takes seconds. Each tray measures 410 mm × 510 mm and carries up to 10 kg. The image below shows the glowing infrared sensor arcs embedded in the tray rim.

Close-up of three PUDU BellaBot trays shown in perspective, each with a blue glowing infrared sensor arc along the rim edge, against a dark background
Expert Verdict: BellaBot occupies the most commercially practical tier of service robotics. The dual SLAM positioning system is its most underappreciated feature: venues with complex layouts, movable furniture, or multiple dining zones experience far fewer localisation dropouts compared to laser-only platforms. The 12–24 hour battery range with hot-swap capability means a single unit can sustain a full double-shift without a charging pause, provided a spare pack is kept charged. One practical deployment note: in venues with highly reflective floors or mirrored walls, position AR Marker stickers at a consistent height of 1.2–1.5 m along main travel corridors. This gives the visual SLAM component stable reference anchors and prevents drift in large open dining areas where LiDAR returns from reflective surfaces can introduce localisation noise.

Swappable Battery: 12 to 24 Hours of Uninterrupted Service

Conventional service robots require a 4–5 hour charging pause per shift. BellaBot eliminates that constraint with a hot-swap battery design. The 25.6 Ah lithium pack slides out from the base unit in seconds, allowing a pre-charged replacement to be inserted and service to resume immediately. Under typical mixed-activity conditions, runtime spans 12 to 24 hours, covering both full-day and evening shifts. Recharging the depleted pack takes 4.5 hours at 29.4 V / 8 A. The image below shows the extraction mechanism with the battery pack partially ejected.

PUDU BellaBot base unit with the hot-swappable lithium battery pack partially ejected, blue LED light strip visible on the chassis rim and red emergency stop button at top

Multi-Robot Fleet Intelligence

A single BellaBot transforms a dining room. A coordinated fleet transforms an operation. Multiple units share positioning and task data over WiFi, enabling intelligent docking management: each robot selects the nearest available pickup station automatically, and if all stations are occupied during a rush, units wait at temporary holding positions and move to a station the moment one frees up — preventing kitchen pass congestion during peak service. The diagram below shows three BellaBot units exchanging coordination signals across a restaurant floor.

Three PUDU BellaBot units operating across a restaurant floor with animated blue dotted WiFi arcs connecting them, illustrating multi-robot coordination and shared task management

Technical Specifications of the PUDU BellaBot

The multi-angle design collage below provides a visual reference for the BellaBot hardware layout — front profile, top-down head view, rear three-quarter, and the full tray stack silhouette — before the complete specification tables.

Four-panel design collage of PUDU BellaBot: side view with four tray levels and cat LCD face, top-down head module view with emergency button, front view, and rear three-quarter perspective

Mechanical Dimensions

Robot Dimensions (L × W × H) 565 mm × 537 mm × 1290 mm
Robot Weight 55 kg
Machine Material ABS + aviation-grade aluminium alloy
IP Rating IP20
Service Life 5 years

Power & Battery

Operating Voltage DC 23–29.4 V
Power Input AC 100–240 V, 50/60 Hz
Power Output (Charger) 29.4 V, 8 A
Battery Capacity 25.6 Ah (hot-swappable)
Charging Time 4.5 h
Battery Life 12–24 h

Navigation & Mobility

Navigation System Laser and visual integrated SLAM positioning
Cruise Speed 0.2–1.2 m/s (adjustable)
Minimum Travel Width 70 cm
Minimum Turning Width 65 cm
Maximum Surmountable Height 10 mm
Maximum Climbing Angle
Surface Requirement Indoor, flat and smooth ground

Trays & Payload

Number of Trays 4
Tray Dimensions 410 mm × 510 mm
Tray Load 10 kg/layer
Height Between Trays (top to bottom) 230 mm / 200 mm / 200 mm / 180 mm
Tray Sensors Infrared presence sensors (modular quick-disassembly)

Sensors & Perception

LiDAR 360° horizontal scanning (new-generation)
Depth Vision Cameras 3 × RGBD (Intel-quality depth sensors)
Front Detection Angle Up to 192.64°
Front Obstacle Detection Range > 10 m
Obstacle Detection Frequency Up to 5400 times/min
RGBD Response Time 0.5 s
Vision Sensor (Positioning) Yes — top-mounted Marker camera

Display & Audio

Screen Size 10.1-inch LCD
Operating System Android
Microphone 6-mic circular array
Speakers 2 × 10 W stereo
Facial Expressions Dozens of original animated expressions
Haptic Feedback Yes — head and ear touch sensors
LED Light Interaction Yes — second-generation interactive LED strips
Voice Wake-Up "Bella, Bella" voice wake word

Operating Modes

Delivery Mode Multi-table simultaneous delivery with optimal route planning
Cruise Mode Autonomous patrol along predetermined route with voice promotion
Direct Delivery Mode One-way single-destination delivery without return to pickup
Birthday Mode Delivery with customisable birthday music and dot-matrix message
Special Mode Custom music and voice for proposals, celebrations, and special events
Guiding Mode Guest greeting and table escort with auto-return to greeting point

Environmental Conditions

Working Temperature 0–40 °C
Storage Temperature -40–65 °C
Working Humidity RH ≤ 85%
Maximum Working Altitude < 2000 m

What's in the Box

  • PUDU BellaBot delivery robot × 1
  • Charger (29.4 V / 8 A) × 1
  • BellaBot User Manual × 1
  • Quality Certificate × 1
  • Positioning Sticker × 1
  • Power Key × 1
  • AR Markers × 1 set

How to Power On and Start Your First Delivery with BellaBot

This procedure describes how to start up the PUDU BellaBot and execute an initial table delivery using Delivery Mode. Ensure that the deployment map has been configured and AR Markers are installed at the venue before following these steps.

Step 1: Insert the Battery and Activate the Key Switch

Open the rear battery box cover, insert the 25.6 Ah hot-swap battery pack, and turn the key switch to the ON position. Close the cover securely. The key switch must be ON before the power button will respond.

Step 2: Position the Robot at the Startup Location

For visual SLAM or combined Laser+Visual SLAM navigation, move BellaBot directly beneath the first AR Marker, facing the main service direction. For laser-only SLAM, place the robot at the designated startup point on the configured map.

Step 3: Power On

Press and hold the power switch for 1 second. The bottom LED light strip will flash and the screen will display the boot logo, followed by the startup animation and Android desktop. The Pudu App launches automatically. If it does not appear, tap the Pudu App icon on the desktop.

Step 4: Select Delivery Mode

From the Pudu App main interface, tap the menu bar and select Delivery Mode. The delivery screen displays the tray map and table number grid. Tap the Settings icon to adjust column count or enable multi-voice prompts before starting.

Step 5: Load Trays and Assign Table Numbers

Place dishes on the appropriate trays — up to 10 kg per tray. On the screen, tap each tray to assign a destination table number. The robot automatically calculates the most efficient multi-stop route.

Step 6: Tap Start! and Monitor the Delivery

Tap Start! BellaBot navigates to each table in sequence. On arrival, the correct tray's LED illuminates and a voice prompt plays. After the guest collects the dish, tap Done or the lightning button — or enable Tray Sensor Switch for fully automatic progression after 5 seconds. BellaBot returns to the pickup location once all deliveries are complete.


How long does BellaBot's battery last, and can it be swapped without stopping service?

BellaBot's 25.6 Ah lithium battery delivers 12 to 24 hours of operational autonomy under typical mixed-use conditions. The hot-swap design allows the depleted pack to be removed and a pre-charged replacement inserted in seconds, sustaining continuous service across a full double-shift without any downtime.

How does BellaBot avoid guests, chairs, and other obstacles?

BellaBot uses three complementary detection layers: a 360° LiDAR that continuously maps the environment, three front-facing RGBD depth cameras with a 192.64° detection arc and range exceeding 10 m, and an obstacle detection refresh rate of up to 5400 times per minute. This delivers a 0.5-second stop response to dynamic obstacles such as guests standing suddenly or chairs being pushed back.

What delivery modes does BellaBot support beyond standard table service?

Six modes are available: Delivery (multi-table optimised routing), Cruise (autonomous patrol with voice promotion), Direct Delivery (one-way single destination), Birthday (custom music and dot-matrix message), Special (music for proposals or celebrations), and Guiding (greeting guests at the entrance and escorting them to their table).

Can several BellaBot units operate simultaneously in one venue?

Yes. BellaBot supports multi-robot fleet coordination over WiFi. Units share docking availability data in real time so each robot selects the nearest free pickup station automatically. During peak service, robots queue intelligently at temporary holding positions rather than causing congestion at the kitchen pass.

What floor types and corridor widths does BellaBot require?

BellaBot operates on flat, smooth indoor floors. Its suspension system handles surface irregularities up to 10 mm and ramp angles up to 5°. A minimum corridor width of 70 cm is needed for straight travel and 65 cm for turns. It is not suitable for outdoor use, wet surfaces, or sticky floor coatings.


Why Choose EXPERT3D?

EXPERT3D has specialised in advanced robotics and 3D technology since 2012 — over a decade of hands-on experience selecting, deploying, and supporting professional platforms across the hospitality sector, retail, healthcare, and research institutions. As an official representative of PUDU, we guarantee the best price, authorized service, and official warranty. We provide pre-sales technical consultation, venue site assessment for navigation mapping, delivery coordination across Spain and Europe, and post-sale support backed by direct manufacturer contacts. BellaBot deployment involves map configuration, fleet integration, and staff training: our team guides you through every step for a smooth launch. Contact us to discuss your venue's specific requirements and current availability.

Robot Specifications
Max Speed (m/s) 0.5-1.2
Navigation & Sensors Navigation System: Laser and visual integrated SLAM positioning LiDAR: 360° horizontal scanning (new-generation) Depth Vision Cameras: 3 × RGBD (Intel-quality depth sensors) Vision Sensor (Positioning): Yes — top-mounted Marker camera
Robot Type Wheeled Service
Application / Purpose Delivery & Advertising
Max Payload (kg) 40
Battery Life (h) 10-24
Details
Country of Origin China
Weight and Dimensions
Net Weight (kg) 55
Assembled Dimensions (mm) 565 × 537 × 1290

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