Service Overview

Wenge Technology specializes in MBus (Meter Bus) bus development services, offering a full-chain solution encompassing low-level protocol implementation, hardware interface design, and system integration optimization. MBus, as a European standard (EN 1434-3) for meter communication protocols, is specifically designed for energy metering devices such as water, electricity, gas, and heat meters. It supports half-duplex master-slave communication and boasts advantages such as strong anti-interference capability, low wiring cost, and long-distance transmission (up to several kilometers). Based on the MBus protocol, Wenge Technology develops high-reliability communication modules that are compatible with mainstream metering chips (such as ST, TI, Maxim) and smart electricity/water meter devices. These modules support bidirectional data exchange between the master station (concentrator) and the slave station (terminal meter), facilitating efficient data collection and remote control in the fields of energy management, smart cities, and industrial monitoring.

Service Content

1. Development and optimization of MBus protocol stack

• It implements core functions of the MBus protocol physical layer (Manchester encoding, voltage/current modulation) and data link layer (frame format, address allocation, error detection), supports standard frames (16-byte data) and extended frames (64-byte data), and is compatible with the EN 1434-3 standard.

• Develop the protocol stack for the master station (concentrator) and slave stations (terminal instruments), supporting multi-slave polling, broadcast commands, and automatic repeat request (ARQ) mechanism to ensure data transmission reliability (bit error rate <10^-6).

• Integrating CRC check, frame header and tail recognition, and collision detection algorithms, it optimizes communication stability, supports simultaneous access of over 200 slave devices, and has a polling cycle of less than 5 seconds.

2. Hardware interface and transceiver design

• Customize MBus master and slave hardware interface circuits, integrate mainstream transceiver chips such as TSS721 and MAX485, support voltage mode (±12V) and current mode (±20mA) signal modulation, and be compatible with existing meter equipment.

• Design an anti-interference hardware architecture that integrates a common mode choke coil (CMCC), TVS diode, and magnetic isolation module. This architecture supports EMC testing (such as CISPR 22 and IEC 61000-4) and enhances anti-interference capability by 40%.

• Develop a low-power hardware solution with a static current of less than 10mA for the master station and a sleep mode current of less than 1μA for the slave station, extending the battery life of battery-powered devices (such as wireless water meters).

3. Development of MBus network management and diagnostic tools

• Develop MBus bus monitoring software that supports real-time data collection, waveform display, error statistics, and protocol parsing (such as HEX/ASCII format conversion), and is compatible with hardware devices such as PCAN and ZLG.

• Integrating automatic topology identification function, it supports the master station to automatically scan the slave station address, device type, and communication status, generate network topology diagram, and simplify operation and maintenance management.

• We provide API interfaces and secondary development kits (SDKs) to support customer customization functions (such as data encryption and remote firmware upgrades), shortening the system integration cycle by 30%.

4. Multi-protocol conversion and edge computing integration

• Develop MBus-Modbus/RS485/LoRa/NB-IoT protocol conversion gateways to achieve seamless docking between MBus meters and host computers, cloud platforms, and support data transparent transmission and edge computing (such as data aggregation, anomaly detection).

• Integrating a lightweight edge computing module, it supports local data storage (up to 16GB), threshold alerts (such as electricity consumption exceeding limits), and offline resume functionality, enhancing the system's real-time performance and reliability.

5. Testing and certification support

• Build an MBus conformance testing platform that covers physical layer (signal quality, modulation depth), link layer (frame synchronization, error recovery), and application layer (data parsing) testing to ensure that the product complies with the EN 1434-3 standard.

• Assist clients in completing CE/FCC electromagnetic compatibility certification, RoHS environmental certification, and type approval (CPA) for measuring instruments, providing test reports and rectification plans.

Application scenarios

1. Smart energy management

• Develop MBus communication modules for smart electricity, water, and gas meters, enabling centralized data collection of electricity/water/gas usage by the main station. This facilitates time-of-use pricing, leakage monitoring, and user energy consumption analysis, thereby helping energy companies reduce operating costs by over 20%.

• Customized multi-energy metering gateway integrates MBus and Modbus protocols, and can simultaneously access electricity meters, water meters, and heat meters. It supports unified reporting of energy data to the cloud platform and is suitable for scenarios such as parks and commercial complexes.

2. Smart City and Building Automation

• Develop MBus energy consumption monitoring systems for public buildings such as schools and hospitals. By deploying MBus slave stations to collect energy consumption data from lighting, air conditioning, elevators, and other equipment, and supporting remote control by the master station and the issuance of energy-saving strategies, we aim to reduce building energy consumption by 15%.

• Customized MBus-LoRa gateway is implemented to enable wireless meter reading for water meters in old residential areas, replacing traditional manual meter reading. The data upload frequency is increased to once daily, reducing labor costs by 70%.

3. Industrial monitoring and process control

• Develop MBus interfaces for factory equipment (such as flowmeters and pressure sensors) to support real-time collection of production data (such as liquid flow and gas pressure) by the master station, and integrate edge computing modules to implement abnormal alarms (such as sudden flow drop) to enhance production efficiency.

• Customized anti-interference MBus communication module, suitable for factory vibration and electromagnetic interference environments, supports long-distance transmission up to 1000 meters, and reduces wiring costs by 40%.

4. Agriculture and Environmental Monitoring

• Develop MBus soil moisture sensors for agricultural irrigation systems, which enable centralized data collection from multiple nodes through a master station and support automatic irrigation control (such as activating a water pump when the humidity falls below a certain threshold), thereby saving 30% of water resources.

• Customized MBus-NB-IoT gateway for remote data reporting from environmental monitoring stations in remote areas (such as meteorological stations and water quality stations), supporting solar power supply and low-power operation, with a battery life exceeding 5 years.

Service Advantages

1. Full protocol coverage and standard compatibility

• Supports EN 1434-3 standard and mainstream manufacturers' extension protocols (such as CJ/T 188 water meter protocol), compatible with metering chips from ST, TI, Maxim, etc., reducing customer integration risks.

2. Ultra-long distance and strong anti-interference

• Through signal enhancement technology and anti-interference design, it supports long-distance transmission (without relay) over 3 kilometers, adapts to complex environments such as factories and farmlands, and achieves a bit error rate of <10^-7.

3. Low power consumption and high reliability

• Optimize hardware power consumption design, with current in slave sleep mode <1μA, master station supporting 200+ slave stations polling, data refresh rate <1 second, meeting the real-time requirements of energy metering.

4. Full-stack development and customization capabilities

• Provide end-to-end services ranging from protocol stack, hardware to cloud platform, support customer customization functions (such as encrypted communication, edge computing), and shorten the development cycle by more than 50%.

5. Safety and certification guarantee

• Integrated with AES-128 encryption module, it supports data transmission encryption and device authentication. It has passed CE/FCC certification and type approval for measuring instruments, meeting industry compliance requirements.

Case Introduction

Case 1: Development project of MBus communication module for smart meters of an energy company
Wenge Technology developed an MBus slave module for a provincial energy company, utilizing the STPM32 metering chip and TSS721 transceiver. The module supports voltage/current dual-mode signal modulation and achieves error-free transmission over a distance of 3 kilometers through anti-interference design. After the project was implemented, the success rate of electricity meter data collection increased to 99.9%, resulting in annual operational and maintenance cost savings of over 2 million yuan.

Case 2: Development project of MBus gateway for multi-energy metering in a smart park
Wengge Technology customized an MBus-Modbus protocol conversion gateway for a national-level park, integrating an edge computing module. It supports the simultaneous access of over 500 devices including electricity meters, water meters, and heat meters, enabling unified reporting of energy data and abnormal alarms. The solution has been applied to the park's energy management system, resulting in annual energy savings of over 3 million yuan.