Abstract: A method for implementing a neural network accelerator using only on-chip memory is provided. The method includes: according to a current neural network model, determining a layer having a minimum value of an output feature map in a neural network (101); determining a quantity of layers of pipeline computing (102); determining a quantity of PEs used for pipeline computing (103); applying for a PE and storing an output feature map of the last layer of pipeline computing in on-chip memory (104), releasing a PE corresponding to a layer at which pipeline computing is completed (105), and repeating the above process at a layer at which computing is to be performed until pipeline computing is completed at all layers of the entire neural network. A neural network accelerator using only on-chip memory is further provided, including a controller, a loading module, a computing array, a post processing module, a storage module, and an on-chip buffer.

Abstract: A temporary banknote storage module and a method for controlling rotational speeds of reels thereof are provided. The method includes: detecting the flow amount of identification information on a tape in a unit time, calculating to obtain line speeds of a large reel and a small reel, calculating to obtain a first angular speed and a second angular speed according to an expected line speed and a PID algorithm, and controlling a first power motor that corresponds to the large reel and a second power motor that corresponds to the small reel respectively according to the first angular speed and the second angular speed.

Abstract: A banknote temporary storage module is provided, including large and small reels driven by first and second power motors respectively, a coiling tape, first and second coded discs, first and second sensors and a microcontroller. The first and second coded discs are fixed on rotating shafts of the large and small reels respectively. The first and second sensors are arranged corresponding to the first and second coded discs respectively and are used for monitoring rotating angles of the large and small reels respectively. The microcontroller is used for calculating the length of the coil tape released by the small reel each time the large reel rotates for one circle, and calculating the current radius of the large reel, and thus angular velocities of the large and small reels are controlled to make the linear velocity of the large reel consistent with that of the small reel.