eLTE Smart Factory


The eLTE Smart Factory Solution can be used for the following services: video surveillance, automated guided vehicle (AGV) remote dispatching, transmission of running status data for production line robots/mechanical arms, data collection of production line and warehousing devices; energy consumption monitoring of product line devices, asset checking, as well as personnel and key asset positioning. Factories are now using different ICT technologies for different services. For example, they use wired networks to transmit data of video surveillance and robots/mechanical arms, and to collect data from factory and warehousing devices, use Wi-Fi communications to dispatch AGVs, use the 470 MHz wireless network to send energy efficiency monitoring data, use radio frequency identification (RFID) technology for asset checking, and use ultra-wideband (UWB) technology for personnel and asset positioning. Utilization of so many technologies leads to difficult network management and high network maintenance costs. Furthermore, these technologies are not the best choices for factories. Wired data transmission leads to difficult network deployment and high operations and maintenance (O&M) costs. Wi-Fi communications are vulnerable to various interferences, with poor handover and coverage capabilities. In these situations, services are easily interrupted. The 470 MHz wireless network uses a proprietary protocol and is severely affected by wireless intra-frequency interferences. RFID/UWB signals are weak with higher deployment costs. To solve these problems, factories need a multi-service wireless network, allowing for access of diversified terminals, and this network can be managed and maintained in a unified way.


eLTE Smart Factory Solution




Solution Highlights


This solution uses unlicensed spectrums and combines different network access technologies, providing various broadband and narrowband services. Enterprise customers can use this solution for their production and operation requirements.

The eLTE-U network supports 2.4 GHz and 5 GHz unlicensed spectrums. It uses the latest 4.5G air interface technologies, such as 4 x 4 MIMO and 256QAM to provide a peak rate of 400 Mbit/s and wide coverage two to three times larger than that of the Wi-Fi system. The eLTE-U network also supports seamless inter-cell handovers even when terminals move at a speed of up to 160 km/h. The network uses 9-level QoS control to ensure different service priorities.

The eLTE-IoT network supports unlicensed ISM spectrums. It uses advanced Slot ALOHA and small-packet fast transmission technologies, allowing for access of 10,000 terminals in a single cell. It provides up to 0.5 to 1 kilometer coverage. The battery life reaches 10 years due to low power consumption.


Success Stories

Huawei Songshanhu factory uses the eLTE Smart Factory Solution for the following services: video surveillance, AGV remote dispatching, transmission of running status data for production line robots/mechanical arms, data collection of production line and warehousing devices; energy consumption monitoring of product line devices, asset checking, and personnel and key asset positioning. The factory uses the eLTE-U broadband network for AGV dispatching, transmission of running status data for production line robots/mechanical arms, data collection of production line and warehousing devices; and personnel and key asset positioning. The factory uses the eLTE-IoT narrowband network for energy consumption monitoring of product line devices and asset checking.

AGV dispatching: The eLTE-U network provides wide coverage two to three times larger than that of the Wi-Fi system. There are no coverage blind spots. The eLTE-U network provides good mobility, which allows AGVs to perform seamless network handovers between cells even when AGVs move at a speed of up to 160 km/h. The eLTE-U network has strong anti-interference capabilities, ensuring reliable access of a large number of AGVs with no data loss.

Robot/mechanical arm data transmission: After using the eLTE-U solution, the factory does not need to route cables again when robots/mechanical arms need to be re-deployed or added due to production line deployment or adjustments. This shortens the production line deployment or adjustment period. The eLTE-U network provides wide coverage two to three times larger than that of the Wi-Fi system. There are no coverage blind spots. The eLTE-U network has a strong anti-interference capability, ensuring reliable access of a large number of robots/mechanical arms with no data loss.

Data collection of production line and warehousing devices: The factory deploys the dual-mode AirNode combining eLTE-U and Wi-Fi technologies to improve network coverage. Unified network management and deployment ensure that the Wi-Fi network gradually migrates and switches to the eLTE-U network. Devices modified to support Wi-Fi network access continue to connect to the dual-mode AirNode through the Wi-Fi network and through the eLTE-U network in the future. Devices not modified to support Wi-Fi network access connect to the dual-mode AirNode through the eLTE-U network. After deploying the eLTE-U network, the factory does not need to route cables again when devices are swapped. Device deployment time is reduced. The eLTE-U network provides wide coverage two to three times larger than that of the Wi-Fi system. There are no coverage blind spots. The eLTE-U network has a strong anti-interference capability, ensuring reliable access of devices.

Energy efficiency monitoring: The inductive energy consumption label has an integrated eLTE-IoT module. The dimensions of the label (H x W x D) are 27 mm x 85 mm x 70 mm. The factory uses the integrated label to sense and collect device current, to calculate power consumption, and to send energy consumption data through the eLTE-IoT AirNode. The energy consumption label is powered by the parallel connection power system, rather than the existing power supply cables. In case a fault occurs on the parallel connection power system, it will not affect the power supply of the label. The eLTE-IoT solution provides wider coverage and stronger anti-interference capabilities, and supports greater connections than the original energy efficiency monitoring solution of the 470 MHz ZigBee system.

Asset checking: The asset checking label has an integrated eLTE-IoT module. The dimensions of the label (H x W x D) are 69 mm x 39 mm x 18 mm. The asset checking label transmits the data through the eLTE-IoT AirNode, ensuring accurate statistics and positioning of devices. The eLTE-IoT solution features lower power consumption, wider coverage, bigger connections, and more reliable transmissions than the original RFID-based asset checking solution. The battery life of the positioning label with an integrated eLTE-IoT chip is three years and that of the upgraded positioning label with an integrated eLTE-IoT chip is five to six years. The eLTE-IoT network provides network coverage with a cell radius of 0.5 to 1 kilometer. This way, less AirNodes are used to cover the entire factory area. A single site supports access of up to 5,000 labels. Slot ALOHA technology is implemented to reduce data packet conflicts. Small-packet fast transmission technology is implemented to improve transmission reliability.

Personnel and key asset positioning: The positioning label has an integrated eLTE-U module. It sends positioning data through the eLTE-U AirNode, ensuring accurate personnel and device positioning. The eLTE-U solution implements three-dimensional positioning of personnel and device, down to 10 centimeters. In the eLTE-U positioning solution, terminals are smaller, consume less power, and cost less for positioning than the original UWB-based positioning solution.