37results about How to "No additional power consumption" patented technology

The invention discloses a phase-locked loop frequency synthesizer structure for improving in-band phase noise performance. The phase-locked loop frequency synthesizer structure consists of two loops, namely a coarse tuning loop and a fine tuning loop, wherein the coarse tuning loop is used for selecting different frequency control words to realize the frequency locking of the loop, the fine tuning loop is used for realizing the phase locking of the loop. When in a locking state, the coarse tuning loop can be turned off and only the fine tuning loop works. By utilizing the structure provided by the invention, the problem that the in-band phase noise of the traditional structure is restricted by a frequency divider can be solved. By introducing the fine tuning loop, the noise of the frequency divider can be effectively reduced in the locking state and the in-band phase noise performance of the phase-locked loop frequency synthesizer can be improved.

The invention relates to a power battery preheating method, a power battery preheating device, a vehicle and a storage medium. The power battery preheating device can preheat a power battery before charging so as to save charging time of the power battery. The power battery preheating method includes the steps of receiving a battery preheating instruction from a terminal; and supplying power to aheater through a vehicle-mounted battery of the vehicle according to the battery preheating instruction so as to preheat the power battery of the vehicle.

The invention relates to an aerobic granular sludge sewage treatment method with denitrification effect and special equipment. The method comprises the steps of cultivating and acclimating activated sludge, treating target sewage, and sludge disposal. The special equipment includes a tower body, which is divided into a reaction zone at the bottom of the tower, an aerobic nitrification zone in the middle, and a three-phase separation zone at the top. The beneficial effect of the invention is that the sewage treatment effect is good, the tower design occupies a small area, the sludge particle formation effect is good, and the denitrification effect is good, and the nitrification liquid circulation and the sludge circulation do not need external power, which saves costs.

The invention relates to a device for automatic adding of a coagulant for treatment of roof high pollution runoff in a building downpipe. The device comprises a downpipe, an upper standpipe and a lower standpipe that are connected to the downpipe, a chemical dosing cylinder inclinedly communicated with the upper standpipe and the lower standpipe, and an evaporation tank that is disposed above the chemical dosing cylinder and is communicated with the upper standpipe and the chemical dosing cylinder respectively, and a brake lock valve body communicated with the chemical dosing cylinder is arranged below the evaporation tank. According to the invention, a rainwater collection pipe of an evaporation tank chamber and a chemical dosing cylinder water collecting chamber inclined plate are disposed in the standpipes, the evaporation tank is internally equipped with a piston, a connecting rod and a one-way braking system, wherein the one-way braking system depends on the cooperation of a spring leaf, a brake pin and a connecting hinge to complete chemical dosing control. The device provided by the invention can effectively treat overflow rainwater falling into the downpipe, and can completely rely on the falling water gravitational potential energy to complete initial rainwater water recognition and coagulant adding. The device has the characteristics of simple structure, convenient processing and manufacture, complete autonomic regulation, convenient replacement of coagulant and good treatment effect.

The invention discloses a threshold value offset calibration method applied to a time domain comparator. The output of the time domain comparator of which the input end is short-circuited is detected, rough regulation control words for zero-crossing detection are regulated at first and then fine regulation control words for the zero-crossing detection are regulated until threshold value offset is decreased to be in a calibrated error range. The method comprises the following steps of: resetting the rough regulation control words and the fine regulation control words to be initial values, and short-circuiting the input end of the time domain comparator; regulating the rough regulation control words for corresponding zero-crossing detection according to a result of the comparator until the comparison result is changed; regulating fine regulation control words for corresponding zero-crossing detection according to the result of the comparator until the comparison result is changed; and disconnecting the input end of the comparator to finish the calibration of the threshold value offset. The method has the characteristics of not influencing the speed of the comparator, not increasing additional power consumption and only requiring once working after power-on. After the multiple cyclic feedback regulation of the control words, the threshold value offset of the comparator can be greatly decreased and a clock cycle required by the finishing of the calibration can be effectively controlled.

The invention relates to a system for realizing a network security control function based on a wireless sensor in a transformer substation, and the system comprises a wireless sensor and a wireless data collection terminal, and each of the wireless sensor and the wireless data collection terminal is both of a star network structure without a relay node. The invention also relates to a method for realizing the network security control function based on the wireless sensor in the transformer substation. By adopting the system and the method for realizing the network security control function based on the wireless sensor in the transformer substation, the characteristic of micro-power operation of the wireless sensor is fully considered, and the control management of the network security is systematically designed. The method is characterized in that secret key management is automatically generated by software based on the unique code of the MCU and can only be read by a programming tool,each sensor has an independent secret key, a secret key generator is not needed, and the method is quick, convenient, safe, low in cost and free of extra power consumption.

The invention discloses a display screen, a terminal and a display method, and the display screen comprises a first light-emitting diode layer which comprises a plurality of first light-emitting diodes, wherein a plurality of first gaps are formed among the plurality of first light-emitting diodes; and a second light-emitting diode layer which is arranged above the first light-emitting diode layer, wherein the second light-emitting diode layer comprises a plurality of second light-emitting diodes, the plurality of second light-emitting diodes are arranged at positions opposite to the pluralityof first gaps, and the second light-emitting diode layer can move relative to the first light-emitting diode layer. According to the invention, the problems of few use scenes, single screen display content, large terminal thickness, variable screen size, fixed screen size, extra screen power consumption and the like in the solution of increasing the screen size of the display screen in the priorart can be solved.

The invention provides a low-voltage warning device which essentially consists of a voltmeter, a bidirectional electromagnetic relay, an acousto-optic system and a battery. The voltmeter is internally provided with a sliding rheostat with non-uniform resistance, and the sliding rheostat has higher resistance at low voltage and lower resistance at high voltage; when the voltage of an output system is higher than a working voltage, an output circuit works normally, and when the voltage of the output system is lower than the normal working voltage, an voltage pointer is at the higher position of the sliding rheostat so as to reduce the current of the circuit instantaneously; the bidirectional electromagnetic relay can cut off the output circuit and put through a low-voltage warning circuit so as to warn by the acousto-optic system. The warning device has obvious effects that as the bidirectional circuit of the relay is used for a control warning circuit, not only the battery electricity quantity can be known at any time so as to exchange in time and reduce the loss caused by not changing the battery in time; but also the whole system does not cost extra electricity, thus being more convenient and safer.

The invention discloses a voltage regulation control device for an inductive ballast. The voltage regulation control device comprises a self coupling transformer, a control unit, a relay unit, a driving unit and an auxiliary power supply, wherein the device utilizes the function that a relay can be used as a conversion switch, and the relay is combined with a driving circuit to realize the output and the conversion of a plurality of stages of different voltages, so that power supply voltage required by external equipment is provided. In addition, a user can control the multi-gear voltage output according to concrete requirements, the goal can be achieved only through increasing the corresponding relay and the corresponding driving circuit, simplicity, convenience and high speed are really realized, the requirement of outputting various voltages in a controlled way is met, and the fast and convenient voltage regulation and the maximum efficiency are realized. The voltage regulation control device has the advantages that the defect of a phenomenon that an original inductive ballast cannot realize the single dimming is overcome, no special requirements on power supply of an electric network exist, the linear voltage output can be realized, the power consumption cannot be additionally increased, and in addition, a higher power factor is maintained.

The invention provides a voltage detecting device in vehicle-mounted equipment and the vehicle-mounted equipment. The voltage detecting device comprises a microcontroller and a voltage detecting circuit. The voltage detecting circuit comprises a voltage output end Vo, an enabling end Ven, a voltage input end Vi, a first resistor R1, a second resistor R2, a third resistor R3, a fourth resistor R4, a fifth resistor R5, a sixth resistor R6, a first audion Q1 and a second audion Q2. The voltage output end Vo is connected with an input pin of an A/D converting circuit arranged in the microcontroller. The enabling end Ven is connected with an I/O port of the microcontroller. The voltage input end Vi is connected with an energy storage element. The microcontroller comprises a first level operation module, a sampling module and a voltage computing module. Under the condition that extra power loss is not increased basically, the voltage of the energy storage element higher than the input voltage of the I/O port of the microcontroller is detected.

The invention discloses an active noise reduction device for an electric vacuum pump of a new energy vehicle. The active noise reduction device comprises a vacuum pump and a noise reduction device; the noise reduction device comprises an acquisition module, an analysis module and a playing module which are in signal connection; and the acquisition module is used for collecting noise from the vacuum pump, the analysis module is used for analyzing collected noise waves, the frequency, the amplitude and the waveform are acquired, and the playing module is then driven to play active noise with thesame frequency and amplitude but opposite waveform as the collected noise. The active noise reduction device has the beneficial effects that an active noise reduction means is adopted, so that stronger pertinence is achieved, and an ideal noise reduction effect can be realized.

The invention discloses a power supply control method and system for a logging-while-drilling detection pipe in an underground coal mine. The method comprises the following steps: monitoring the vibration of the logging-while-drilling detection pipe; if the monitored vibration is not greater than a preset vibration threshold value and the duration time t is less than T1, enabling a gamma detectionunit and an inclination detection unit of the logging-while-drilling detection pipe to keep the states of the previous moment; if the duration time t is not less than T1 and less than T2, executing aprocess A; if the duration time t is not less than T2 and less than T3, executing a process B; if the duration time t of the vibration state is not less than T3, executing a process C; if the monitored vibration is greater than the preset vibration threshold value and the duration time t is less than T1, enabling the gamma detection unit and the inclination detection unit of the logging-while-drilling detection pipe to keep the states of the previous moment; if the duration time t is not less than T3, executing the process B. The control method for the logging-while-drilling detection pipe effectively solves the problem that the power supply time of detection pipes in an existing logging-while-drilling system does not meet the actual production need because the dimensions and the capacities of batteries are limited.

Provided is a rapid preheating and starting circuit for fluorescent lamps. The defect that newly-published rapid preheating and starting requirements cannot be satisfied due to relatively small filament preheating current and long preheating and starting time in the prior art of same kind is solved. The rapid preheating and starting circuit is characterized in that the circuit is formed by connecting a glow discharge tube and a micro PTC in series. The glow discharge tube is used for blocking current flowing through the PTC after a lamp tube is ignited, enabling the preheating and starting circuit to have no power consumption when the lamp tube is at work and increasing filament preheating current flowing through a resonant capacitor to achieve an effect of full filament preheating. The micro PTC is capable of effectively shortening the preheating time to achieve the requirement of rapid preheating and starting due to very small thermal capacity, fast temperature rise and fast resistance change. The technical problem of enabling both requirements of full filament preheating and rapid starting to be met in existing energy-saving lamps and other fluorescent lamps is successfully solved, and an effect of effective product quality improvement is achieved.

The invention provides a method and system for reporting information by a non-connected terminal, a method and system for detecting whether a terminal exists under a base station and a method and system for detecting the mobility problem of the terminal under the base station, and a computer storage medium, and the method for reporting information by the non-connected terminal can effectively reduce power consumption, and comprises the following steps: configuration parameters for reporting information is set by the non-connected terminal; the base station generates a system message and broadcasts the system message, wherein the system message comprises the set configuration parameters of the information reported by the non-connection state terminal; the terminal receives the system message broadcasted by the base station and stores the configuration parameters of the reported information; the non-connection state terminal judges whether a reporting threshold is met or not; if the terminal in the non-connection state meets the reporting threshold, reporting processing is carried out; and the base station receives the information reported by the terminal and processes the information.

The embodiment of the invention discloses an upgrading method, device and system and a storage medium. The method is applied to a server, and the method comprises the following steps: when an upgrading trigger instruction is detected and a heartbeat packet periodically sent by a client is received, sending an upgrading start message to the client; when an upgrade confirmation message sent by the client based on the upgrade start message is received, splitting the upgrade data packet, and determining each sub-data packet; and when the heartbeat packet sent by the client side is received subsequently every time, sending one sub-data packet to the client side until each sub-data packet is sent to the client side, so that the client side is upgraded according to each sub-data packet. Through the technical scheme of the embodiment of the invention, the power consumption overhead can be reduced.

The invention provides a new energy lithium battery automatic conveying and sorting device, and belongs to the technical field of lithium battery conveying and sorting, the new energy lithium battery automatic conveying and sorting device comprises a sorting chamber, sorting plates are movably connected in the sorting chamber, the sorting plates are distributed in an isosceles triangle shape, and the two sorting plates oppositely located on the lower portion are used in cooperation with the sorting plates oppositely located on the upper portion correspondingly; a guide channel set used in cooperation with the sorting plate is arranged in the sorting chamber, rack plates are symmetrically connected into the side walls of the sorting chamber in a sliding mode, and a gravity detection driving system used in cooperation with the rack plates is arranged in the sorting chamber. According to the automatic conveying and sorting device for the new energy lithium batteries, through the combined action of the sorting plate, the guide channel set, the sliding block, the belt connecting assembly, the rack plate and the gravity detection driving system, the lithium battery conveying and sorting efficiency can be effectively improved, compared with manual conveying and sorting, the efficiency is high, manpower consumption is basically not needed, and the production cost is reduced. The conveying and sorting cost is low, and the whole conveying and sorting process has the advantage of high automation.