31results about How to "Realize intelligent protection" patented technology

The invention discloses an intelligent power grid detection platform based on cloud computing. The intelligent grid detection platform comprises a main monitoring computer and a slave monitoring computer. The slave monitoring computer is in online communication with the main monitoring computer. The input end of the slave monitoring computer is connected to a power supply and a clock, and the output end is connected to a printer. The slave monitoring computer is connected to a man-machine interface, a communication server and a communication gateway through an Ethernet switch. The man-machine interface is connected to a microcomputer protection device and a temperature and humidity controller through an RS485 bus. The communication server is connected to a power meter and an electric motor protector through an RS485 bus. The communication gateway is connected to an intelligent circuit breaker, a four-remote unit, and a DC screen through an RS485 bus. According to the intelligent grid detection platform, the main monitoring computer and the slave monitoring computer are set, hierarchical monitoring, regional monitoring, centralized control and remote monitoring are facilitated, thus the monitoring efficiency is improved, at the same time the rational use of resources is facilitated, and the intelligent power transmission and distribution, intelligent monitoring and intelligent protection of a whole power grid are facilitated.

The invention discloses an intelligent protection system for a flexible DC distribution network based on a neural network. Power grid data acquired by each sensor distributed at a distributed power generation side, a user side and a line of the DC distribution network are transmitted to a signal acquisition module, the data are converted to corresponding digital signals, the digital signals are transmitted to a central processing unit for analysis and processing, data classification is then carried out, signal feature extraction is carried out, and information reflecting the operation state of the power grid in real time can be obtained. If a fault signal is detected, a real-time database is entered, an expert database is called to the real-time database, after a fault type is diagnosed, a corresponding measure is taken, and a tripping / closing action of the system is controlled and executed. An artificial intelligence technology applicable to a complicated system and a computer technology are combined, the neural network is introduced, the expert database is updated continuously through the algorithm, fault diagnosis on the DC distribution line is more efficient, accurate and reliable, intelligent protection for the DC distribution line is realized, and the DC distribution system is ensured to operate safely and stably.

The invention discloses an intelligent roller shutter system based on the image processing technique. The intelligent roller shutter system comprises a master control module, a meteorological station, a camera, a GPRS module, an oscillating bar and a roller shutter motor. According to the intelligent roller shutter system, an intelligent weather recognition system based on weather images is established with the master control module serving as a data processing and controlling platform, rain, snow and other severe weather conditions can be effectively judged by collecting the temperature, the humidity, the illumination, the wind speed and direction and other weather information in the meteorological station outside a greenhouse and combining the weather images so that the rolling-up and the pavement of a heat preservation quilt can be controlled in time. By means of the positioning technology of the heat preservation quilt, an operator can accurately control the heat preservation quilt to be located at any position between the initial position and the ending position of the heat preservation quilt when carrying out long-distance operation or operating in a control chamber. Meanwhile, the fault can be intelligently diagnosed, the working state of a roller shutter motor can be monitored in real time, and when the roller shutter motor breaks down, the master control module automatically cuts off a power source of a roller shutter, and therefore the whole system can be safe and reliable.

The present invention discloses an electric lifting table protection control system. The system comprises: a lifting column arranged on a support of a table; a motor; a current control device configured to control and obtain a working current of the motor in real time; a determiner configured to determine whether the motor is in an obstruction state or not according to the working current; and a controller configured to control a running state of the motor to perform protection operation. According to the scheme of the invention, the current control device and the determiner are employed to obtain whether the motor is in the obstruction state or not, and a circuit between the controller and the motor is employed to control the motor to perform protection operation when the motor is in theobstruction state, and therefore, intelligent protection of an electric lifting table is achieved.

The invention relates to an intelligent rotating window, which comprises a window frame bracket, and a window is arranged in the window frame bracket, and the window includes a glass frame and glass arranged in the glass frame, and the glass frame connects with the window frame through the rotating shaft at the center of the upper and lower ends. The bracket is connected, and an induction detection control device is installed under the glass frame and between the window frame bracket and the glass frame. The induction detection control device includes a sensor system and a sheave system. The sheave system includes two sets of sheave mechanisms, transmission parts and servo motors. After receiving the control signal from the sensor system, the servo motor drives two groups of sheave mechanisms to drive the transmission part to rotate, and finally controls the opening and closing of the glass frame. The intelligent rotating window of the present invention improves the safety factor of the window, improves the drive control performance of the window, and realizes intelligent protection; it uses air, temperature, and humidity sensors to ensure that the owner will not cause indoor gas changes due to negligence at home. Safety accidents such as fire and gas poisoning occurred.

The invention relates to the technical field of motor drive and control, in particular to an intelligent protection method and device for constant torque starting and overloading of a separately excited or permanent magnet direct current motor. The device comprises a current closed-loop adjusting unit, a pulse width adjusting unit and a control unit. According to the protection method, intelligentprotection of constant torque starting control and overloading of the direct current motor is realized through motor working current closed-loop detection, a PI adjustor, a PWM variable voltage control technology and a current square attenuation algorithm. The motor is safely started at the maximum speed in an electric drive process, and the motor is scientifically and reasonably protected when the motor is instantaneously overloaded due to load disturbance in a steady-state operation process, so that the working efficiency and the performance of the motor and the robustness of an electric drive system are improved as much as possible on the premise of ensuring safe application of the motor.