Building control system with features for operating under intermittent connectivity to a cloud computation system

A method for operating building equipment of a building, the method comprising:

• obtaining, at a controller for the building, a first setpoint trajectory from a cloud computation system, the first setpoint trajectory comprising a plurality of setpoints for the building equipment or for a space of the building, the plurality of setpoints corresponding to a plurality of time steps of an optimization period;
• determining whether a connection between the controller and the cloud computation system is active or inactive at a time step of the optimization period;
• using a setpoint from the first setpoint trajectory as an operating setpoint for the time step of the optimization period responsive to determining that the connection between the controller and the cloud computation system is active at the time step;
• using a setpoint from a second setpoint trajectory as the operating setpoint for the time step of the optimization period responsive to determining that the connection between the controller and the cloud computation system is inactive at the time step, the second setpoint trajectory generated by the controller;
• gathering training data describing costs of operating the building equipment based on the first setpoint trajectory and based on the second setpoint trajectory;
• generating a model based on the training data, the model configured to predict costs associated with operating the building equipment based on the first setpoint trajectory and based on the second setpoint trajectory;
• and
• operating the building equipment based on the model.

A method for operating building equipment of a building, the method comprising:

• obtaining a first setpoint trajectory from a remote system or device, the first setpoint trajectory comprising a plurality of setpoints for the building equipment or for a space of the building, the plurality of setpoints corresponding to a plurality of time steps of an optimization period;
• determining whether a connection between a controller of the building and the remote system or device is active or inactive at a time step of the optimization period;
• using a setpoint from the first setpoint trajectory as an operating setpoint for the time step of the optimization period responsive to determining that the connection between the controller and the remote system or device is active at the time step;
• using a setpoint from a second setpoint trajectory as the operating setpoint for the time step of the optimization period responsive to determining that the connection between the controller and the remote system or device is inactive at the time step;
• and
• operating the building equipment based on the active operating setpoint to affect a variable state or condition of the space to maintain occupant comfort in the space.