4results about How to "With self-diagnosis function" patented technology

The invention relates to the technical field of fuel gas safety, and discloses an intelligent fuel gas safety valve and a method for intelligently opening and closing the safety valve, and the intelligent fuel gas safety valve comprises a sensor unit which is configured to be installed near a fuel gas pipeline or fuel gas equipment; the control unit is in communication connection with the sensor unit; the execution unit is in communication connection with the control unit; the communication unit is in communication connection with the control unit; and the standby power supply is used for providing emergency power for the intelligent gas safety valve when the main power supply fails or is powered off. The concentration, the pressure, the temperature and the flow of the fuel gas are monitored in real time through the sensor unit, the system can quickly send out an instruction for closing the valve when detecting abnormal conditions (such as gas leakage and too high or too low pressure), and accidents such as fire disasters or explosions caused by fuel gas leakage are effectively prevented. The system monitors a plurality of key parameters of the gas system through a plurality of sensors in a combined mode, and a multi-level safety guarantee mechanism is formed.

The present invention provides an automatic alignment device for a straddle carrier, which relates to the field of vehicle control technology, and comprises: a reflector, a plurality of reflective photoelectric switches; the plurality of reflective photoelectric switches are installed at the head of the straddle carrier at a first installation height and at equal intervals; the reflector is installed at the tail of a container at a second installation height; the first installation height is the same as the second installation height, and the spacing between the plurality of reflective photoelectric switches is less than the width of the reflector. The present invention can accurately detect the relative position between the straddle carrier and the container or container truck through the array signal formed by the plurality of reflective photoelectric switches on the reflector, ensure that the straddle carrier can be aligned with the target position with high precision, reduce the time for the straddle carrier to align with the container or container truck, and improve the operation efficiency and overall logistics efficiency.

The invention relates to the field of blend oil production, in particular to a blend oil production process DCS (Distributed Control System) decentralized control system, which comprises a blend oil production process module used for executing production and processing of blend oil; the DCS control system module is used for performing decentralized control on each blend oil production process module; the DCS control system module comprises a central control module and a plurality of sub-control modules, the sub-control modules are used for independently controlling all the blend oil production process modules, and the central control module directly completes configuration with all the sub-control modules based on stored structured HAZOP deviation analysis records and LOPA grading results. The DCS control system adopts a distributed structure, a plurality of system components are distributed on an open redundant communication network, and the system components are provided with independent function processors, have maintenance and self-diagnosis functions, and can perform early warning to ensure the safe work of the blend oil production process.

This invention provides an intelligent fire extinguishing system for a shaft boring machine (TBM), comprising a fire detection and sensing unit, a TBM equipment status sensing unit, an intelligent fire control center, a fire extinguishing execution unit, a remote data transmission unit, a lighting and alarm unit, and a power management unit. The fire detection and sensing unit and the TBM equipment status sensing unit are electrically connected to the remote data transmission unit, which is electrically connected to the intelligent fire control center. The intelligent fire control center is electrically connected to the fire extinguishing execution unit and the lighting and alarm unit. The power management unit supplies power to the entire system. This invention aims to solve the problems of slow response speed, poor fire extinguishing effect, lack of intelligence, and insufficient safety in existing shaft boring machine fire protection systems, in order to meet the safety requirements of pumped storage power station tunnel projects.