32results about How to "Control works" patented technology

The invention relates to the field of a control circuit of an electric automobile, in particular to the control field of a relay in a high voltage loop, and provides a method and a circuit for detecting working conditions of the relay in the high voltage loop of the electric automobile. The method and the circuit for detecting the working condition of the relay in the high voltage loop of the electric automobile comprise the following steps of: collecting the voltage of a battery pack and the relay in the high voltage loop of the electric automobile, and judging the working conditions of an anode relay and a cathode relay according to the collected voltage values so as to provide the accurate working condition information of the relay to the driver, thereby achieving the safety protectionin the high voltage loop.

The invention is applicable to a thermal insulation system and particularly relates to an electric heating system for a dry ash conveying pump. The system comprises a plurality of conveying pumps, two power source main junction boxes, sixteen electric control distribution boxes, a plurality of pore plates and a plurality of electric heating films, wherein the shapes, sizes and positions of the electric heating films correspond to those of the pore plates; the output end of each power source main junction box is connected with the input ends of eight electric control distribution box in parallel; the power source main junction box controls the disconnection and connection of each electric control distribution box and distributes a voltage for each electric control distribution box; two sides of each conveying pump are communicated with the plurality of pore plates; each pore plate is correspondingly provided with one electric heating film; each electric control distribution box is connected with the plurality of electric heating films on each conveying pump in parallel; the electric control distribution boxes convey transformed voltage to the electric heating film. By virtue of designs of the electric heating films and an automatic monitoring circuit, not only can freezing and choking phenomena of the conveying pump in an ash discharge period be solved, but also polling is clear at a glance, and the safety and reliability of ash discharge operation of the conveying pump are ensured.

The disclosure relates to an isolation control circuit and method and a mobile terminal. The circuit comprises a switching module, a decoupling module, and an earphone of which a distance with a first antenna is in a preset range; working frequency bands of the first antenna and a second antenna meet preset conditions; a first pin of the earphone is connected with the switching module, and the switching module selectively switches on the decoupling module; the switching module is configured to switch on the decoupling module when the first antenna works, and is configured to not switch on the decoupling module and control the earphone to normally work when the second antenna works; and the decoupling module is configured to eliminate coupling of the earphone on the first antenna. The isolation control circuit in the embodiment of the disclosure improves isolation of the first antenna and the second antenna in the mobile terminal and improves communication quality of the mobile terminal.

An embodiment of the invention discloses a low-temperature peanut pressing control method. The method comprises steps as follows: a temperature threshold value T and a pressure threshold value P of a fifth gear area of an oil press are set; the actual temperature t and the actual pressure p of the fifth gear area of the oil press are acquired; the size between t and T and the size between p and P are judged; when t is larger than T, the difference of t and 5 DEG C is smaller than or equal to T, p is larger than P and the difference of p and 0.4 Mp is smaller than or equal to P, the output frequency of a miniature spiral conveyor for cake particles is reduced, the introduction amount of steam into a conditioning pot is reduced, and the input quantity of materials into the conditioning pot is increased; when t is smaller than T, the sum of t and 5 DEG C is larger than or equal to T, p is smaller than P and the sum of p and 0.4 Mp is larger than or equal to P, the output frequency of the miniature spiral conveyor of cake particles is improved, the introduction amount of steam into the conditioning pot is increased, and materials are stopped from being added to the conditioning pot; when t is equal to T and p is equal to P, the output frequency of the miniature spiral conveyor for the cake particles is kept unchanged, the introduction amount of steam into the conditioning pot and the material input quantity are unchanged; otherwise, the oil press is stopped from running. The invention further discloses a low-temperature peanut pressing control system for controlling peanut press equipment.

The invention discloses a fuel system and a method for protecting the fuel system. The method for protecting the fuel system includes: obtaining a water level signal, a pressure signal and a water content signal in an oil-water separator; The state of the oil-water separator is judged. Only when the water level signal, pressure signal and moisture content signal meet the requirements, can the engine be controlled to work normally; Speed ​​limit and torque limit mode. The oil-water separator can be drained and maintained in time, which ensures the normal operation of the oil-water separator and improves the protection of the engine.

The invention discloses a large-scale airplane fuel oil system test device, and belongs to the field of aviation industry. The large-scale airplane fuel oil system test device comprises a trailer, a filling type fuel tank, a purification oiling module and an electric control module, wherein the filling type fuel tank is fixedly connected to the top of the trailer; the purification oiling module is arranged on the trailer and is connected with the filling type fuel tank; the electric control module is arranged on the trailer, and is connected with the purification oiling module through an electric wire; the device conveys the filling type fuel tank to a specified position through the trailer. The large-scale airplane fuel oil system test device has four functions including airplane gravity oiling, transfer oil tank airplane oiling, transfer oil tank purification and self circulation purification; the calibration work of the large-scale airplane fuel oil quantity can be independently completed; the design is unique; the efficiency is improved; an oil oiling passage and an oil return passage are respectively designed for the large-scale airplane fuel oil system test device; during the airplane fuel oil system test, the oiling and oil return circulation calibration work can be performed at the same time; the metering errors are reduced by the device; the precision is improved; the cost is reduced; the durability of equipment is improved.

The invention relates to the technical field of intelligent devices, in particular to an intelligent startup integrated and dispersed control system of a circulating water cooling pump. The intelligent startup integrated and dispersed control system comprises a man-machine interaction unit, a central control unit, an intelligent control and data processing unit, an automatic water supplementing bottom valve, an automatic barring device, a motor insulation testing device, a driving motor, a circulating water pump, a pipe pressure controller and an exhaust and water level switch. The dispersed control and integrated display of a circulating water cooling pump startup device can be realized, it is ensured that the machine pump can operate under the complete and failure-free conditions, and all important data indexes of the machine pump are fed back in real time.

The invention specifically relates to a metering equipment compulsory inspection auxiliary apparatus which is installed on a power supply male plug of metering equipment to be compulsorily inspected. The apparatus comprises a control box, a control circuit, a female plug and a fastener, wherein the female plug comprises an insulation cover body and a power line, the insulation cover body is arranged at the outer surface of the control box, the insulation cover body is internally provided with a strip-shaped insertion hole with a metal contact sheet, the fastener is arranged in the control box and extends out of the control box to be engaged with the metal contact sheet in the strip-shaped insertion hole, and the metal contact sheet matches a conductive terminal of a male plug of the metering equipment to be compulsorily inspected; one end of the power line is connected with the metal contact sheet, and the other end passes through the control box to be connected with an external power source; the control circuit comprises a processor, a relay, a button battery supplying power to the processor and a clock circuit electrically connected with the processor; and the relay is arranged on a loop where the power line and the external power source are disposed, and the control end of the relay is connected with the processor electrically. Through such a technical scheme, power of metering equipment which is used beyond a compulsory inspection period can be automatically cut off.