47results about How to "Reduce hardware investment" patented technology

The invention discloses a slope starting control method applicable to the IMT vehicle idling start and stop work condition. When it is judged that a vehicle tends to stop, a road gradient acquired by a gradient sensor is judged with a threshold, and therefore the idling start and stop function is correspondingly controlled to be enabled or disenabled. The slope starting control method applicable to the IMT vehicle idling start and stop work condition can effectively solve the starting slope slip problem, and driving comfort and safety are improved.

The invention relates to a rack type vertical elevator operation checking-controlling and positioning system comprising a detection unit, a processing unit, a control unit and an executing unit. The detection unit is formed by a tooth-number sensor and a relative detection circuit; the tooth-number sensor can detect changes of tooth numbers; the changes are shaped into a square wave signal by the detection circuit to be sent to the processing unit; the square wave signal can be encoded via non-full state Gary code by the processing unit and calculated to acquire elevator operating speed, accelerating speed and position; and the control unit can output relative frequency and driving force to the executing unit according to an order of the processing unit. By the use of the rack type vertical elevator operation checking-controlling and positioning system, the elevator can work at an enclosed loop control state, so deficiencies of time and labor consumption, inaccuracy of the plane layer due to manual ocular estimation of a traditional rack type elevator, and instability of system open-loop control can be solved; and elevator operation process can be simplified, labor intensity of operators can be reduced and work efficiency can be improved.

The invention discloses a focusing method and device of a projector. The method comprises the steps that: the projector receives projection information sent from a terminal; the projector determines a first focusing parameter of a projection lens of the projector according to the projection information; and the projector controls the projection lens to focus according to the first focusing parameters. In the technical scheme, the projector determines the focusing parameter of the projector according to the projection information sent from the terminal and is not needed to measure each data for calculating the focusing parameter, the hardware investment of the projector is reduced, and the handling resource of the projector is saved.

The invention proposes a vehicle overcrowding analysis system based on vehicle terminal information matching. In the present invention, the vehicle license plate information on the expressway collected by the image recognition unit, the communication collection unit collects user terminal information on the vehicle, the site information collection unit collects site information, and the wireless transmission unit sends the license plate information, user terminal information, and site information to The central server; the central server searches for the number of people in the vehicle according to the license plate information; builds the license plate matrix at the time of the site, marks the rows and columns of the same elements in the matrix, and obtains the actual number of passengers on the vehicle through intersection matching, and the central server according to the vehicle. The actual number of passengers and the number of verified passengers will be given an early warning. The invention has high resource utilization rate, wide vehicle inspection range, does not affect traffic, can issue an overcrowding warning in real time, significantly improves the response speed of law enforcement personnel, stifles traffic accidents in the bud, and reduces traffic accidents and personnel and property losses caused by vehicle overcrowding .