基于ESP8266的双CPU小功率多通道充电智能控制终端

ESP8266-based intelligent control terminal for dual-CPU low power multi-channel charging

为了减少增设电缆造成的船舶消防隐患,在舰船电力系统的配电侧设计一套能集中管理的小功率多通道充电装置。文中设计一种基于ESP8266模块、在Cortex-M3内核芯片的ARM架构下的双CPU模式的小功率多通道充电装置控制器,主CPU(即通信主控板)完成人机交互功能,从CPU(即现场主控板)执行设备充电的通断自动控制功能,双CPU之间采用CAN总线桥连。充电装置的各种状态通过ESP8266通信模块发送到服务器,用户通过APP向服务器订阅数据,实现远程智能控制。另外,为保证装置的使用效率,提出混成式计价算法。现场运行结果表明,小功率多通道充电装置能够迅速地对不超过120 W的用电设备进行自适应通断控制,如突遇过载/过流故障可快速切除并显示给用户当前状态,确保船舶用电安全。

In order to reduce the fire hazard caused by additional cables,a set of low-power multi-channel charging device that can be managed centrally is designed at the power distribution side of the ship power system.On this basis,a low-power multi-channel charging device controller based on ESP8266 module and dual-CPU mode under ARM architecture of Cortex-M3 core chip is designed.The main CPU(namely communication main control board)is used to complete human-machine interaction function,and slave CPU(namely field main control board)is used to excute on-off automatic control function of device charging,and the two CPUs are connected by CAN bus bridge.Various states of the charging device are sent to the server by means of ESP8266 communication module,and users subscribe data from the server through APP to realize remote intelligent control.A hybrid pricing algorithm is proposed to ensure the service efficiency of the device.The field operation results show that the low-power multi-channel charging device can quickly carry out adaptive on-off control for the electrical equipment,whose voltage does not exceed 120 W.In case of sudden overload/overcurrent failure,the device can quickly turn off the related electrical resource and display the current status to user to ensure the safety of electricity use on ships.