Catering and What “Smart” Means Here
China’s catering revenue reached RMB 5.29 trillion in 2023, the first year past RMB 5 trillion, and is expected to pass RMB 5.6 trillion in 2025. There are more than 6 million catering businesses, mostly small, and the chain rate is about 21%. The sector faces high labor cost, heavy ingredient loss, strict food-safety supervision, and lookalike competition. A smart restaurant uses IoT, AI, and big data for scan-to-order, a bright kitchen (the back of house on camera), ingredient traceability, kitchen temperature control, and smarter scheduling. The point is higher efficiency, lower cost, and safer food.
Nearly 70% of catering businesses say they want to digitize, but only about 28% have actually done it. Split management systems, a hard time controlling the whole chain, and expensive digital products are the main blockers. Of those that did take digital services, more than 67% reported better operating efficiency, and 58% said they had tightened the business mix. IoT is the base layer: ordering screens, cameras, temperature devices, and smart scales have to be online.
Market Size and Digital Penetration
The global market for smart restaurant systems was about USD 2.3 billion in 2024 and is expected to reach USD 5.5 billion in 2031, a CAGR of about 13.6%. China’s smart-restaurant market is growing faster. Chains, contract catering, and delivery keep adding digital tools. Policy has made the bright kitchen and ingredient traceability a compliance baseline, so demand for IoT cameras and sensors is strong.
Policy and Compliance
The Food Safety Law requires catering providers to keep food safe. The Catering Service Food Safety Operation Specifications set how the kitchen is run. Many cities require a bright kitchen, with kitchen video on the regulator’s platform. Ingredient traceability and cold-chain temperature control have to meet the relevant standards. The devices carry video and operating data, so privacy and data security matter.
Local rules. Beijing, Shanghai, Shenzhen, and other cities require 100% bright-kitchen coverage for chain restaurants, school canteens, and contract caterers, with video kept for at least 30 days. Some provinces require cold-chain temperature data to be available online for inspection.
Technical Figures and Cases
Technical figures. One 1080p bright-kitchen camera is about 2-4 Mbps; four at once are about 8-16 Mbps. Temperature sensors on NB-IoT or 4G use under 10 MB a month. Ordering screens and self-checkout have to stay online: a drop stops service. Chains mostly use 4G/5G IoT SIM cards so many stores can be managed together and share a data pool.
A fast-food chain’s bright kitchen. Kitchen cameras in more than 3,000 stores nationwide are on 4G. Video reaches headquarters and the regulator. AI flags a missing mask or a bad practice. Violation detection rose by about 60%.
Cold chain at a contract caterer. Sensors cover the central kitchen, delivery vehicles, and store cold cabinets. A limit breach alarms within seconds. Ingredient loss fell by about 20%, and the operator reports no food-safety incidents.
Self-checkout in a campus canteen. AI vision reads the tray and settles the bill. Average checkout fell from about 45 seconds to 8 seconds, and peak queue time fell by about 70%.
Terms
Bright kitchen: the cooking process on video for customers and inspectors. The cameras have to reach the supervision platform.
HACCP (hazard analysis and critical control points): a food-safety system in which control points such as temperature and time have to be traceable.
Table turnover: how many times a table is used again. Smarter ordering and plating raise the turns.
Core Pain Points
Labor is expensive and hard to hire
Wages for servers and cooks are rising, and hiring is hard. Ordering, the till, and running plates can use fewer people with self-ordering, a smart queue display, and serving robots.
Food safety and supervision
Kitchen hygiene, storage, and the cooking steps have to be traceable. A fridge or freezer that loses temperature spoils food, so it needs a live alarm. A bright kitchen also needs video that keeps uploading.
Ingredient loss and stock
Food is lost when it expires or is stored badly. Smart scales, temperature sensors, and the inventory system, on one network, support tighter purchasing and date control.
IoT Use Cases
Bright kitchen and video
Cameras in the kitchen and the dining room connect over 4G/5G or broadband. Video goes to the regulator or headquarters live or on request. AI flags a missing mask or a rule break and raises an alarm.
Cold storage
Cold rooms, fridges, and display cases carry temperature and humidity sensors. A limit breach alarms and notifies a manager. The record is kept for traceability and an inspection.
Ordering and self-service
Self-order kiosks, pickup screens, and queue systems sit on the network with the till and the kitchen display. Remote maintenance and content updates are supported.
Ingredient traceability and smart scales
A smart scale uploads weights and ties them to purchasing and inventory. Batch and supplier can be traced, which is what food-safety management needs.
Where This Is Heading
AI forecasts and more automation. Sales forecasts, shift planning, and automatic replenishment are in use, and cooking robots and delivery robots are spreading.
One chain of data. Purchasing, storage, cooking, and sales share data so the operation can be run in finer detail.
Chains going abroad. As restaurant chains expand overseas, IoT is how stores in more than one country are run from one place.
Summary
A smart restaurant uses IoT for a bright kitchen, temperature monitoring, and smarter ordering. Labor cost can fall by 20%-30%, table turnover can rise by 15%-25%, and food safety and compliance get much stronger.
SimtoLink supplies 4G/5G IoT SIM cards and modules for cameras, temperature devices, and ordering screens, with multi-store management and multi-operator switching.