31results about How to "Accurately obtain location information" patented technology

The invention discloses a fire detection search and rescue system and method based on millimeter waves. The system comprises an environment acquisition device, a millimeter wave detector, a wireless transmitter and a monitoring terminal. The environment acquisition device is used for sending the acquired environment information to the wireless transmitter; the millimeter wave detector is used forcarrying out all-weather scanning on the environment to be detected so as to obtain characteristics and position information of a life body in the environment to be detected, and sending the characteristics and the position information of the life body to the wireless transmitter; the wireless transmitter reports all the collected information to the monitoring terminal through millimeter waves sothat the monitoring terminal stores the characteristics and position information of the life body; the monitoring terminal searches and rescues the life body based on the change by continuously comparing the change of the life body characteristics and the position information detected by the millimeter waves before and when the fire occurs. According to the system, accurate technical support can be provided in case of a fire, so that firefighters can accurately and quickly rescue trapped persons.

The invention discloses a user position determination method of a smart home system, and electronic equipment. The method includes: if at least one intelligent electric appliance included in the smart home system detects user position recognition signals emitted by a position recognition device worn by a user, the intelligent electric appliance which recognizes the user position signals is regarded as a to-be-operated intelligent electric appliance; the position of the user is determined according to an area which the to-be-operated intelligent electric appliance is located in and the signal intensity of the user position signals; and the to-be-operated intelligent electric appliance is controlled to execute operation related to the position of the user. According to the method, the position information of the user can be accurately obtained, the intelligent electric appliance is conveniently controlled to execute the operation related to the position information of the user, the intelligent electric appliance is in more accordance with the user behavior, and the satisfaction degree for the users is improved.

The invention discloses a method for acquiring the locations of vehicles, a device, a non-stop electronic toll collection method and a non-stop electronic toll collection system and belongs to the intelligent transportation field. The method for acquiring the locations of the vehicles comprises the following steps that: A, when a vehicle passes by an entering ground sensor, vehicle counts N are increased by 1; B, when the vehicle passes through a departure ground sensor, the vehicle counts N are decreased by 1; C, ground sensing block division is performed: one independent ground sensor having a vehicle existing state is adopted as one ground sensing block, or a plurality of adjacent ground sensors of which the states are continuous vehicle existing states are adopted as one ground sensing block, and the number of the ground sensing blocks is M; and D, ground sensing location information judgment is performed: when N is equal to M, the location of each ground sensing block is the ground sensing location information of a corresponding vehicle, wherein M and N are both integrals larger than or equal to 1. According to the method for acquiring the locations of the vehicles of the invention, one independent ground sensor having a vehicle existing state or a plurality of adjacent ground sensors of which the states are continuous vehicle existing states are adopted as one ground sensing block; and the locations of the vehicles in a lane can be obtained through the number of the vehicles and the number of the ground sensing blocks, and therefore, the location information of the vehicles can be obtained accurately.

The invention discloses an oil sprayer. When a needle valve 3 is in contact with an upper stop point contact surface 8 of the needle valve, a first conductive material A and a second conductive material B form a first conductive loop through the needle valve 3; and when the needle valve 3 is in contact with a lower stop point contact surface 9 of the needle valve, the first conductive material A and a third conductive material C form a second conductive loop through the needle valve 3. A conduction signal of the first conductive loop and the second conductive loop is detected, and position information of the needle valve 3 can be precisely obtained, so that oil spraying amount can be precisely controlled, and consistency and stability of oil spraying amount are realized, and therefore, CO2emission is reduced.

The embodiment of the present disclosure discloses a method for preparing a test sample. The method includes: providing a structure to be treated including a failure area; wherein, the structure to be treated includes: multi-level steps, a dielectric layer covering the steps, a A contact plug and a virtual channel column running through the step; along a preset direction intersecting the slope where the multi-level step is located, the structure to be treated is thinned toward the step to form a pre-treated sample; wherein, The pretreated sample includes the failure area; along the preset direction, the thickness of the contact plug remaining on the surface of the pretreated sample is greater than or equal to a first preset thickness; removing the residue on the surface of the pretreated sample the dielectric layer to expose the dummy channel pillars to form the test sample.