41results about How to "Mature and stable technology" patented technology

The invention discloses an STM32-based broadcast transmitter automatic control system which comprises an STM32 microcontroller, a touch screen unit, a local network server unit, an image acquisition unit and a sampling unit; the STM32 microcontroller is connected with an upper computer, an output port of the STM32 microcontroller is connected with a driving unit, and the driving unit is controlledto execute a control instruction; the touch screen unit is used for displaying processed acquired information and receiving a control instruction of a touch operation; the local network server unit is used for realizing transmitter information remote network display and remote network control; the image acquisition unit is used for regularly acquiring images in a transmitter cabinet for remote observation of maintenance personnel; and the sampling unit is used for calculating control operation which needs to be executed by a transmitter by acquiring transmitter information and controlling thedriving unit to realize automatic control of the transmitter. The system is small in size, rich in hardware resources and high in processing capacity, effective integration of the system is achieved,stability is improved, and cost is reduced. The invention also discloses a method for controlling the transmitter by the system.

The invention relates to a preparation method of azotized graphene lithium ion power battery slurry. The preparation method mainly comprises the preparation of azotized expanded graphite and azotized graphene lithium ion power battery slurry. The preparation method comprises the steps of firstly, introducing a nitrogen increasing agent in the expandable graphite and expanded graphite preparation process, and azotizing to obtain azotized expanded graphite; and secondly, preparing azotized graphene by taking the azotized expanded graphite as the raw material, and introducing substances such as a dispersing agent, a conductive agent, active materials and a binder in the preparation process so as to obtain the azotized graphene lithium ion power battery slurry. According to the preparation method, azotized graphene or the compound of azotized graphene and other conductive additives is adopted as the conductive additive of the lithium ion power battery slurry, the high-temperature cycle performance, high-temperature storage performance and high-rate discharge performance are further improved; on the other hand, the preparation of azotized graphene and the dispersion of the lithium ion power battery slurry are implemented simultaneously, and the problem that graphene cannot be dispersed easily in the application process can be solved.

The invention relates to a distributed power grid fault recovery controller and a working method thereof. The distributed power grid fault recovery controller is composed of a DSP chip, a power supply unit, a communication unit, an upper computer, a storage unit, an AD processing unit and a reset circuit. The power supply unit is connected with the DSP chip and the communication unit; the communication unit is connected with the DSP chip and the upper computer; the upper computer is connected with the communication unit and the power supply unit; the storage unit is connected with the DSP chip; the AD processing unit is connected with the DSP chip and the upper computer; and the reset circuit is connected with the DSP chip and the power supply unit. The provided controller has following beneficial effects: firstly, the equipment utilization rate is high, the distributed modularization access is realized, and the compatibility is high; secondly, the software pertinency and the execution efficiency are high; thirdly, the processor operation is in a high speed state and the real-time processing capability is strong; and fourthly, the peripheral external equipment has a simple structure, the technology is mature and stable, and the controller is easy to realize and control.

The invention discloses a workpiece conveying device for an eddy current flaw detection machine with a simple and compact structure, high operating efficiency, stability and reliability, and low cost. The storage bin (2), the pallet (3), and the pallet translation mechanism that translates the pallet (3) from the storage bin (2) to the receiving bin (1) and puts down the pallet (3), behind the receiving bin (1) A grabbing manipulator (30) is provided; the installation platform (28), the receiving bin (1), and the storage bin (2) are arranged side by side from left to right, and the receiving bin (1) includes the first bracket (4 ) and the first linear movement mechanism, the storage bin (2) includes the second bracket (5) and the second linear movement mechanism, and each tray (3) is respectively located in the receiving bin (1), the storage bin (2) and stacked on the first bracket (4) and the second bracket (5); the top of the receiving bin (1) is provided with a first clamping manipulator.

The invention relates to a mechanically timed safety protecting device of shredder, comprising a mechanically timing device and a safety protecting device; the mechanically timing device comprises a timer knob, a mechanic timer core and a touch component; the mechanic timer core is installed in the upper cover of the shredder; the timer knob is rotationally installed in the upper cover of the shredder and connected with the mechanic timer core; the touch component is installed on tail end of the a mechanic timer core; the safety protecting device is installed in the shredder and matched with the touch component; the safety protecting device is touched by the touch component, optimally, the mechanic timer core is the mechanic timer core of home appliances; the touch component is a cam; thesafety protecting device is a safety power-off switch, the paper inlet safety protecting device or the paper outlet safety protecting device. The invention is ingenious in conception, simple in structure, low in cost, practical in functions and convenient in application; the device is energy-saving regularly, safe and reliable; and the function of shredder is further improved.