69results about How to "Start in time" patented technology

The invention discloses an early warning method of secondary accidents on the expressway based on big data. The method is achieved in ways that early warning devices are arranged on expressway guardrails at intervals; when an accident occurs, an accident point early warning device near the accident place is triggered and sends accident place information to a monitoring center; the accident point early warning device triggers adjacent early warning devices; and the accident point early warning device is taken as the starting point, so the shorter the distance between the place and the startingpoint is, the stronger the early warning signal of the adjacent early warning device is. According to the invention, the beneficial effects are that accident places can be timely found; the setting distances of the early warning devices are big; less time is consumed; setting ways of the early warning devices are various; early warnings and repealing of early warnings are precise and timely; earlywarning efficiency is quite high; early warning effects are better; and probability of occurrence of secondary accidents can be effectively reduced.

The invention discloses a brake device which comprises a hand crank, a gear and a shaft which are connected. One end of the shaft is connected with the center of the gear, and the other end of the shaft stretches into a shaft hole of an oil pump and is provided with a concave part. A locking mechanism comprises a brake pin and the oil pump is internally provided with a pin hole crossed with the shaft hole, wherein the center line of the pin hole and the center line of the shaft hole are not located on the same plane. One end of the brake pin stretches into the pin hole, and the other end of the brake pin is located outside the pin hole. The upper surface or the lower surface of the part, located in the pin hole, of the brake pin is provided with a circular arc groove. The maximum diameter of the groove is not smaller than the outer diameter of the shaft. A limiting part is fixedly arranged at the deepest position of the pin hole. An arc groove matched with the limiting part is formed in one end face of the brake pin. A positioning spring is arranged on the brake pin in a sleeving manner, one end of the positioning spring is fixed to the pin hole, and the other end of the positioning spring is fixed to the surface of one side of a step part of the brake pin. The brake device is simple in structure, reliable, easy to operate, high in environment adaptability and capable of running reliably in severe environments such as the low-temperature environment and ensuring fast starting of an armored vehicle.

The invention relates to an arc light monitoring and early warning device in a power distribution cabinet and a monitoring and early warning method thereof. A voltage and each branch current transformer measurement module, each branch arc sensor measurement module, and each branch intelligent fire extinguishing method are installed in the power distribution cabinet. The material integrates the patch fire protection module, and is equipped with a CPU comprehensive analysis module, an early warning judgment module, a fire protection output module, and a remote background display operation module to monitor, calculate, and determine the voltage, current of each branch, and arc intensity of each branch in real time. According to the real-time monitoring value and variation of arc intensity, the arc intensity is estimated and calculated, and the secondary value judgment and early warning are carried out. The method of determining and starting the linked arc fire module ensures that the fire module can be started point-to-point in time when arc light occurs, eliminating hidden dangers and enabling good branches to continue to operate.

The application provides a solar photovoltaic power supply monitoring system, including a monitoring host, a programmable controller, a sensor component and a monitoring power supply module; the monitoring host has a touch screen; the programmable controller is connected to an expansion module through a parallel bus; the sensor component includes a photovoltaic voltage sensor , battery pack voltage sensor, load voltage sensor, temperature sensor, current sensor; the sensor component transmits the detected signal to the programmable controller or its expansion module; the monitoring host receives all the signals through the programmable controller and displays them on the on the touch screen. This application monitors the parameters such as voltage, current and temperature in the solar photovoltaic power generation system through the monitoring host and programmable controller, and displays them on the touch screen, and can automatically and selectively turn on the power supply of the generator according to the power generation of the photovoltaic panel. So as to ensure the normal operation of the battery pack and the normal operation of the solar photovoltaic power generation system.

The invention provides a self-locking type elevator assembly. The self-locking type elevator assembly comprises two door knife assemblies, namely, the first door knife assembly and the second door knife assembly. The first door knife assembly and the second door knife assembly are arranged side by side. The first door knife assembly is arranged at the upper end of a left car door. The second door knife assembly is arranged at the upper end of a right car door. The door knife assemblies are self-locking type door knife assemblies. The first door knife assembly and the second door knife assembly are connected. The self-locking type elevator assembly further comprises two acceleration devices which are arranged at the top ends of a left landing door and a right landing door. The acceleration devices abut against the self-locking type door knife assemblies. The self-locking type door knife assemblies are arranged, and therefore when the car doors arrive at a flat layer, the self-locking structures are automatically opened, and potential safety hazards caused by misoperation when the car doors do not arrive at an assigned point can be effectively avoided; and furthermore, the acceleration devices are arranged and connected with the layer, and therefore when the self-locking structures are opened, the landing doors can be driven to be opened at the same time, and smoothness and safety of opening and closing of the elevator landing doors are improved.