48results about How to "Realize continuous acquisition" patented technology

The invention discloses a data acquisition method for acquiring system data based on the industrial Internet of Things. The method comprises the steps: obtaining the data, needing to be acquired by the system, of a plurality of industrial devices, and at least dividing the plurality of industrial devices into a first type of devices, a second type of devices and a third type of devices according to the purposes of the plurality of industrial devices, collecting, by a plurality of node gateways, data of a plurality of industrial devices of the system and uploading the collected data of the plurality of industrial devices to a platform layer through a base station gateway, and if the platform layer does not receive data of the first type of devices from the base station gateway within a preset time, uploading, by the base station gateway, the data of the first type of devices to the platform layer through a first communication path. According to the data acquisition method disclosed by the invention, the data of a plurality of devices in the system can be acquired, and the data of important devices in the system can be timely and continuously acquired.

The invention discloses an experimental device and an experimental method for measuring roadway ventilation thermal resistance in a mine fire period. The experimental device comprises a ventilator, afirst steel pipe, a combustion furnace, an electric heating pipe, a holding furnace, an inlet wind speed sensor, an inlet pressure sensor, an inlet temperature and humidity sensor, a second steel pipe, an outlet wind speed sensor, an outlet temperature and humidity sensor, an outlet pressure sensor, a pressure acquisition module, a temperature and humidity acquisition module, a wind speed acquisition module, a data storage module and a temperature rise control module. The experimental method for measuring roadway ventilation thermal resistance in the mine fire period comprises the steps of: step 1, establishing the experimental device; step 2, checking whether the connection of the experimental device is normal, and checking sealing performance; step 3, igniting combustibles, and storing data; step 4, heating by using an electric heating pipe, and recording data; step 5, arranging experimental data; step 6, and drawing a curve. The experimental device and the experimental method are ofgreat significance to formulating underground disaster prevention measures for mines and selecting ventilation decisions and disaster avoidance routes in catastrophe periods.