A pressure sewer control system includes a server in communication with one or more pressure sewer installations across a communications network, each of the one or more pressure sewer installations including a controller and one or more sewerage tanks. The server is configured to: determine weather data for a region associated with the pressure sewer installation; estimate power generating capability of a weather-dependent power generator based on the weather data; receive fluid level data indicative of a fluid level in the one or more sewerage tanks from the controller; determine whether a pump action should be instigated by the controller to pump fluid from the sewage tank based on the estimated power generating capability of the weather-dependent power generator and the fluid level data; and transmit a pump control instruction to the controller.

A transducer for a connection to a fluid pressure source having a mechanism for setting a pneumatic output by way of an electrical input signal. The transducer provides a lower housing assembly and an upper housing assembly. The lower housing assembly comprises lower housing configured to receive a supply nozzle. The supply nozzle fluidly communicates with a supply port and intermittently fluidly communicates with an output port of the lower housing through an internal fluid passageway. The upper housing assembly comprises an upper housing configured to receive a coil and an armature such that the upper housing, coil and armature define a latching electromagnetic circuit that provides alternating contact of the armature with the supply nozzle of the lower housing assembly.

A solenoid device including pressure altering means for altering an output pressure of the solenoid device; and an actuator for providing an actuating signal to said pressure altering means; wherein the solenoid device further includes a sensor arranged to sense a control value of the solenoid device, and a controller which receives a request and is arranged to control delivery of power to the actuator with feedback from the sensor until the control value meets the request.

A target supply device may include a nozzle configured to output a liquid target substance contained in a tank, an excitation element, a droplet detection unit configured to detect a droplet output from the nozzle, a passage time interval measurement unit configured to measure a passage time interval of droplets, and a control unit. The control unit may be configured to set a proper range of the passage time interval, change the duty value of the electric signal to be input to the excitation element, store the passage time interval measurement values of the droplets generated with respect to a plurality of duty values and variation thereof in association with the duty values, and determine an operation duty value based on the variation from among the duty values with which the passage time interval measurement values are within the proper range, among the duty values.

A fluid pressure proportional valve includes a valve body, a first core shaft, a second core shaft, and a driving motor. The valve body has a first orifice, a second orifice, a third orifice, and a receiving space having a valve port. The first and second core shafts are located in the receiving space. The first core shaft has a sealing portion, an abutting portion, and a flow channel. Under normal status, the sealing portion seals the valve port, and the second orifice communicates with the third orifice via the flow channel. When the driving motor drives the second core shaft to move along an axial direction, the second core shaft could seal the flow channel to block the communication between the second orifice and the third orifice and push the abutting portion of the first core shaft to depart from the valve port and the sealing portion, thereby communicating the first and the second orifices.

The present disclosure describes a control system network architecture for a fluidic control system such as a hydraulic or pneumatic control system. The architecture includes a plurality of clustered control-component nodes with each node being alternatively configurable to independently control the operation of multiple single-acting controlled endpoint devices or a double-acting controlled endpoint device. Each node includes control-components including a solenoid, one or more valve spools independently controllable by the solenoid, and a low-level controller operable to control the solenoid. The solenoid, valve spools, and low-level controller are clustered together and physically co-located as a unit. The nodes are arranged in a control block with each node being uniquely identifiable for data communication via a data communication network. The data communication network may include a Controller Area Network (CAN). Multiple control blocks may be equipped with communication modules and linked for data communication between the control blocks.

The present disclosure describes systems and methods for pressure-driven micro-surgical tool actuation. The systems and methods may encompass the use of a remote handle held by a first hand of a user as well as a surgical tool located in the eye of a patient. A primary actuator may be included in remote handle and operable to be actuated by a mechanical force exerted on the handle. Actuating the primary actuator pressurizes a fluid within a length of tubing. The pressurized fluid may be transmitted to a dynamic tool held by a second hand of the user, where the pressurized fluid may be used to actuate a subordinate actuator. Actuation of the subordinate actuator may actuate a dynamic component of the dynamic tool.

A method for operating a pneumatically driven system for handling workpieces, comprising a plurality of pneumatic units that can be pneumatically operated or are used for pneumatic control, which have connections to pressure hoses and/or which are in fluid communication with each other by the use of pressure hoses, and comprising at least one control unit for driving at least one of the pneumatic units by the use of electrical signals and/or for receiving and evaluating electrical signals from at least one of the pneumatic units. The electrical signals are here transmitted between the control unit and at least one pneumatic unit via the pressure hoses, wherein an electric voltage is applied between at least two different pressure hoses that connect the control unit and the respective pneumatic unit.

A robotic device may traverse a path in a direction of locomotion. Sensor data indicative of one or more physical features of the environment in the direction of locomotion may be received. The implementation may further involve determining that traversing the path involves traversing the one or more physical features of the environment. Based on the sensor data indicative of the one or more physical features of the environment in the direction of locomotion, a hydraulic pressure to supply to the one or more hydraulic actuators to traverse the one or more physical features of the environment may be predicted. Before traversing the one or more physical features of the environment, the hydraulic drive system may adjust pressure of supplied hydraulic fluid from the first pressure to the predicted hydraulic pressure.

The modification method for the gas density relay, the gas density relay with the online self-check function and the check method thereof provided by this application are used for high-voltage and medium-voltage electrical equipment, including a gas density relay body, a gas density detection sensor, a temperature regulating mechanism, an online check contact signal sampling unit and an intelligent control unit. Regulate temperature rise and fall of the temperature compensation element of the gas density relay body through the temperature regulating mechanism, which leads to a contact action of the gas density relay body, the contact action is transferred to the intelligent control unit through the online check contact signal sampling unit, and the intelligent control unit detects the operating value and/or return value of the contact signal of the gas density relay body based on the density value at the time of contact action. The gas density relay check can be completed without maintainer at the site, so as to realize free maintenance, greatly improve the reliability of power grid, increase work efficiency and reduce the cost.