This review documents Stonbel's COB fine-pitch display delivery at Conghua Aotou Thermal Power Station Energy Control Center. The project was contracted by a Guangzhou industrial weak-current integrator. Requirements included high-temperature resistance, strong electromagnetic interference resistance, synchronous display of over a hundred generator unit signals, and 7×24 uninterrupted operation. The article covers project background, site constraints, selection rationale, configuration, installation and delivery, and operational results, providing integrators with a reusable reference for energy control center displays.
Project Background and Goals
The COB fine-pitch display project at the Conghua Aotou thermal power station energy control center arose from a need to upgrade the station's control room display wall. The contractor was an industrial low-voltage systems integrator based in Guangzhou with deep experience in power sector construction, but lacked industrial-grade high-protection COB display products and power-scenario solution design capability. The client set three goals: the display wall must withstand high temperatures and strong electromagnetic interference; support synchronized display of hundreds
Site Pain Points and Constraints
Constraints centered on three areas. First, the control center has a high-temperature, strong electromagnetic environment where ordinary display equipment is prone to interference during long operation, making image stability hard to guarantee. Second, the integrator lacked industrial-grade high-protection COB product resources and power-scenario design capability, and had no industry qualifications or thermal power station cases to cite during technical briefings with the client. Third, the station is in a suburban area, and the integrator's existing after-sales
Selection Basis and Technical Justification
During selection, the integrator chose Stonbel as the power-scenario display supplier. The basis came from three levels: Stonbel holds 3C, CE, FCC, ISO14001, ISO9001, ROHS, military and special qualifications, and can freely provide power industry qualifications and thermal power station cases to support client technical briefings; on the product side, it offers COB fine-pitch displays with P0.7-P1.8 pixel pitch, 3840Hz refresh rate, IP55 protection and lifespan of at least 100,000 hours, meeting the control center's close-viewing and long-operation needs; on the service side, it committed to original-factory delivery within 10 days, with on-site installation and commissioning by a local Guangzhou service team. This formed a complete closed loop from qualifications and parameters to delivery timing.
Solution Design and Equipment Configuration
The solution was customized for the energy control scenario: the display uses high-temperature-resistant, interference-resistant industrial-grade COB fine-pitch panels, with chip-level packaging improving electromagnetic interference resistance for the station's strong electromagnetic environment; display units support synchronized access and multi-window presentation of hundreds of unit operation signals, meeting the control center's need for centralized display of unit data and station status; the panel has IP55 protection and intelligent temperature-controlled heat dissipation for continuous operation under high-temperature conditions. The
Installation and Commissioning Delivery
Delivery was completed jointly by Stonbel's original factory and the integrator. The factory completed production and shipping within 10 days; the local Guangzhou service team performed on-site panel installation, commissioning and connection with the industrial control system; the integrator handled on-site low-voltage construction coordination; and both parties verified items one by one per the power-scenario technical briefing requirements. During integration testing, focus was on smooth switching and image consistency across multiple unit signals, ensuring daily control center dispatch
Operating Results and Replicable Experience
Operating results show that the COB fine-pitch display ran stably year-round under high-temperature and strong electromagnetic conditions, with clear unit data display and smooth multi-signal switching, significantly improving O&M dispatch efficiency and earning high recognition from the station's O&M department. For the integrator, original-factory technical backing throughout delivery reduced after-sales costs by 30%, and the project opened entry into the high-end energy industrial display market, leading to several subsequent energy station display projects in the Pearl River Delta. Three lessons are replicable:
Q1: Is the COB fine-pitch display at the Conghua Aotou thermal power station energy control center reliable under high temperature and strong electromagnetic conditions?
A: Yes. The project uses high-temperature-resistant, interference-resistant industrial-grade COB fine-pitch displays, with chip-level packaging improving electromagnetic interference resistance, IP55 panel protection and intelligent temperature-controlled heat dissipation. Operating results show the display ran stably year-round under high-temperature and strong electromagnetic conditions, with clear unit data display and smooth multi-signal switching, earning high recognition from the station O&M department.
Q2: How many signal channels can the COB fine-pitch display at the Conghua Aotou thermal power station energy control center display synchronously?
A: Per project requirements, it supports synchronized display of hundreds of unit operation signals. The panel is designed for energy control scenarios, can centrally present unit data and station status information, and reserves interfaces for connection with industrial control systems. Actual channel count depends on the project plan, but this project was configured and integration-tested to meet the client's requirement for synchronized display of hundreds of signals.
Q3: What support can the original factory provide to an integrator undertaking the COB fine-pitch display project at the Conghua Aotou thermal power station energy control center?
A: The factory provides four types of support: qualifications, cases, delivery and O&M. Stonbel freely provides power industry qualifications, thermal power station cases and dedicated energy control technical solutions to support client technical briefings; the factory completes equipment delivery within 10 days, with a local Guangzhou service team performing on-site installation, commissioning and industrial control system connection; and it provides 7x24 industrial dedicated O&M response with 4-hour on-site service within the city. The integrator's after-sales costs were reduced by 30% as a result.
This review confirms three core requirements in energy power scenarios: industrial-grade protection, multi-signal access, and original manufacturer service backup. Stonbel's COB chip-level packaging, IP55 protection, 3840Hz refresh rate, and ≥100,000-hour lifespan, combined with direct factory supply, 10-day delivery, and localized O&M, enabled the integrator to complete delivery without in-house power display expertise. For weak-current integrators, choosing a manufacturer with full-process support is a viable path into high-end industrial display markets.
