32results about How to "Realize group control" patented technology

The embodiment of the invention discloses a control information transmitting system and a control information sending and receiving method and device. The control information transmitting system comprises a first device used for sending control information and a second device used for receiving the control information, wherein the first device and the second device are connected through a power line network, the first device is used for modulating the frequency of mains supply according to the control information so that an electricity signal can be obtained, the electricity signal is transmitted to the second device through the power line network, and the second device is used for demodulating the electricity signal so that the control information can be restored. According to the control information transmitting system and the control information sending and receiving method and device, transmission of the control information is achieved in the mode that the frequency of the mains supply is regulated, and the control information transmitting method is different from an existing control information transmitting method, and different solutions are provided for the transmission of the control information. The control information transmitting system and the control information sending and receiving method and device have the advantages of achieving low-cost transmission of the control information on the basis that an existing power line is not changed, and being particularly suitable for low-cost occasions, such as the occasion for intelligent lighting control over a lighting light source.

The present invention discloses a vibration source device of high-speed railway track plate, which belongs to the equipment field of manufacturing railway track basic, and is suitable for high-speed railway track plate manufacture. The major technique of the present invention is that: a three phase current line is connected to a transducer; after the frequency is converted by the transducer, threeleads are extracted from the transducer, and a plurality of oscillators are connected in parallel with the three leads; the three leads before each oscillator are connected with an alternating current contactor and an induction coil; the induction coil is provided with a fault display control loop, and a control loop arranged at the alternating current contractor is provided with preset connecting and preset subdivision control circuits. The present invention has the advantages that: the present invention can change the power frequency form 50Hz to 150Hz, improves the oscillation frequency ofthe oscillators, and is able to display automatically the practical running state of the oscillators so as to realize group control of the oscillators; moreover, the oscillators have convenient and firm fixation, and are able to work under the condition of concentrated water vapour.

The invention relates to an intelligent control device for an LED street lamp and an intelligent control method. The intelligent control device comprises a moving image sensor component, a microprocessor and a street lamp switch control interface, wherein the moving image sensor component is used for detecting whether a moving object is on a pavement, and transmitting detection information to themicroprocessor; the microprocessor is used for generating control instruction for indicating a preset time span of lightening the LED street lamp according to the detection information, and transmitting the control instruction to the street lamp switch control interface; and the street lamp switch control interface is used for lightening the LED street lamp in the preset time span according to the control instruction. The intelligent control device also comprises a communication component used for transmitting and receiving information, the moving image sensor component is also used for detecting the moving direction of the moving object, and the microprocessor is also used for generating state message according to the moving direction so as to previously lighten the LED street lamp in the moving direction. The device and the method can control the switch of the LED street lamp according to the pavement condition so as to increase the service life of the LED street lamp and save energy.

The invention discloses a modular control method. The system includes at least two air-conditioning units, water pumps and several communication lines. The air-conditioning unit includes a compressor, a water-side heat exchanger, a second heat exchanger, a throttling mechanism, and a controller. 1. The water supply temperature sensor and the return water temperature sensor installed at the water supply and return port of the water side heat exchanger. Adjustment control benchmark, calculate and adjust the situation according to the judgment of the ability to adjust; the main engine judges the adjustable action according to the temperature of the supply and return water, if the current needs of load shedding, standby, refrigeration and antifreeze and the number of currently running units is greater than 1, calculate the operating units in the current system The number NP of unprotected and load-shedding units in . The invention realizes the group control of the unit group through simple hardware and simple communication between the units, realizes the stable operation of the supply and return water temperature, the stable operation of the unit, and realizes the balanced operation and energy-saving operation of the unit.

A spiral baffle electric heater with oblique Japanese unit circular tube arrangement, the tube bundle assembly includes U-shaped electric heating tube group, tube plate, annular support plate, inclined baffle group, tie rod group, single-ended inclined sleeve group, double-ended inclined casing group; the U-shaped electric heating tube group is arranged in circles on the grid points distributed in a regular triangle according to the circular pipe layout scheme of the oblique sun character unit; the oblique sun character unit is occupied by the "oblique sun character" Composed of 6 grid points, 2 long and 1 short, 3 U-shaped electric heating tubes; 3 sets of oblique sun-shaped units are symmetrically arranged in the center of the first circle, and oblique sun-shaped units are symmetrically arranged in the second to seventh circles according to the center of six equal divisions ; There are 6 groups in the second circle, and 6 groups of oblique Japanese word units are added for each increased circle in the future; the inclined baffle groups are connected end-to-end with 3 baffles in each cycle, and the fluid in the shell surrounds U-shaped electric heating tube bundle spiral flow. The electric heater of the invention has high heat transfer coefficient, low flow resistance and compact structure, can save materials, reduce costs and prolong service life.