User type intelligent heat supply system based on DCS control and control method

The invention discloses a user type intelligent heat supply system based on DCS control and a control method. Compared with a traditional central heating system, a heat supply user terminal is additionally arranged on a heat supply main pipeline of each household, a terminal executing mechanism is an electric adjusting valve, and the terminal uploads user setting and the real-time opening degree of the adjusting valve to a public network through a 4G network. Equipment signals of the heat supply initial station and equipment signals of the heat exchange station outside the plant are connected to an on-site DCS control cabinet, and the control cabinet uploads the signals to a public network. The heat supply network dispatching center receives signals from the heat supply user terminal and the DCS control cabinet in the mode that the upper computer is connected into the public network, data analysis and processing are conducted through DCS control software, and then control signals are transmitted to the DCS co