39results about How to "Achieve prediction" patented technology

The embodiment of the invention discloses an escalator passenger safety early warning device and method. The escalator passenger safety early warning device comprises a plurality of cameras and a maincontroller, the plurality of cameras are in signal connection with a main controller and are used for acquiring images of a preset area of an escalator; the main controller is connected with an escalator control system and is used for determining the safety state of a passenger according to the configuration computer vision system according to at least one passenger image in the image, when the safety state of the passenger is in a preset state, a safety early warning instruction is sent to the escalator control system so that the escalator control system can control the operation of the escalator according to the safety early warning instruction. According to the escalator passenger safety early warning device and method, an accident of an escalator passenger can be pre-judged, so that the accident occurrence effect is avoided.

The invention discloses a method and device for controlling an air conditioner compressor based on the air speed of an indoor unit. The method comprises the step of circularly executing the followingwinding switching control processes: the real-time indoor unit air speed of the air conditioner indoor unit is determined and compared with a first set air speed threshold; if the real-time indoor unit air speed is not less than the first set air speed threshold, windings of the compressor are controlled to be connected in a triangle mode; and if the real-time indoor unit air speed is less than the first set air speed threshold, the windings of the compressor are controlled to be connected in a star-shape mode. By applying the method, overall operation performance of an air conditioner can beimproved.

Embodiments of the present invention provide a fraudulent number identification method, device, equipment and storage medium. The method includes obtaining the attribution, account opening data, and business data of the first fraudulent number; forming a number set with numbers having the same attribution as the first fraudulent number, and searching for the first number in the number set; wherein, the account opening of the first number The data matches the account opening data of the first fraudulent number, and the business data of the first number matches the business data of the first fraudulent number; obtains the paging signaling data of the first number, and judges the paging data of the first number Whether the call signaling data conforms to the preset package model, if not, it is determined that the first number is a fraudulent number. The method for identifying fraudulent numbers provided by this embodiment screens and obtains fraudulent numbers from numbers that have not generated bills, realizes pre-judgment of fraudulent numbers, and can remind users in time to protect the interests of users.

The invention discloses an online diesel engine gas valve state detection method, which includes: monitoring the instantaneous speed, cylinder head vibration, fuel consumption, exhaust temperature, and cooling water temperature of the diesel engine through a sensor; converting the signal collected in step 1 into a standard electrical signal input Data acquisition card: the standard electrical signal is collected and converted from analog to digital by the data acquisition card; through the coupling of the instantaneous speed of the diesel engine and the vibration of the cylinder, the vibration is transformed in the time domain into the angle domain corresponding to the crankshaft angle for order analysis; Measure the order ratio data matrix of the diesel engine under normal conditions and bring it into the formula to turn the fuel consumption x g / kWh, exhaust temperature y K and cooling water temperature z K into margin coefficients; measure the order ratio data matrix B in any state and compare it with ηA , such as B>ηA, it is judged that there is an abnormality in the valve mechanism of the diesel engine. The invention realizes pre-judgment of most failures of the air valve, thereby reminding users to perform maintenance and replacement in advance.

The invention provides an exhaust system and an apparatus for preventing dust backflow and a method thereof. Through real-time monitoring on a motor rotating speed signal of a vacuum pump and gas pressures of an upstream and a downstream of a filter, when the measured motor rotating speed equals to or lower than a set first rotating speed, a difference value of the measured pressures of the upstream and the downstream can reach a threshold set by current processes, and a control valve is closed before the motor rotating speed is decreased the second rotating speed. According to the invention,an exhaust pipeline communicated with a reaction chamber is closed before the motor rotating speed of the vacuum pump is reduced or rotation stops due to fault, dust backflow is blocked, and loss of core hardware in the reaction chamber due to pollution is effectively avoided.