68results about How to "Reduce charging frequency" patented technology

A permanent-magnetic DC motor bearing similar characteristics with the constant power pulling motor, in particular a new drive control system for brushless motor adopts new technologies of full electronic drive control and DC-DC transducer. The motor can generate great drive torque, i.e. high tractive force, climbing ability and better acceleration performance with low power consumption, and eliminate the needs for improvement to the motor structure, complication, high manufacture cost or weak magnetic control; the motor may further gain such performance as high speed, wide speed regulation and infinite variable speed under light load; the total voltage of the battery and the number of single series of connection can be reduced; controllable electric brake can be realized through fully utilizing the energy feedback during sliding and braking. The new system can significantly improve the kinetic performance, safety and reliability of electric vehicles and remarkably reduce operating costs, with ideal characteristics expected in various electric vehicles powered by rechargeable battery or/and super capacitance as well as significantly expanded work scope and capacity for conventional electrically driven system.

A power supply device comprises a battery pack, a controller, a switch module and an output end. The battery pack can output preset power supply voltage to a load through the output end and comprises a plurality of batteries which are connected in series and connected with the output end through the switch module. The controller is connected to the output end and the switch module to detect voltage outputted by the battery pack. The controller first sequentially controls each battery to output the preset power supply voltage individually, then sequentially controls two or more than two batteries to be connected in series and enables the total voltage outputted by the plurality of batteries connected in series to reach the preset power supply voltage until the total voltage of all the batteries sequentially connected in series is still lower than the preset power supply voltage when the voltage outputted by each battery is detected to be lower than the preset power supply voltage.

A precision syringe pump employing a syringe comprises a motor, a lead screw and a syringe driving head connected to the lead screw. The syringe comprises a cylinder and a plunger. The motor drives the lead screw to rotate clockwise or counterclockwise to drive the syringe driving head and push the plunger to move within the cylinder. The syringe pump further comprises: a magnetoresistive sensor, at least one permanent magnet and an MCU, the at least one permanent magnet being located on the lead screw and rotating therewith; the magnetoresistive sensor can sense the magnetic field generated by the at least one permanent magnet; the input end of the MCU is connected to the magnetoresistive sensor, and the output end of the MCU is connected to the motor; the MCU receives signals from the magnetoresistive sensor and controls, according to the signal feedback, the direction and velocity of the lead screw rotated by the motor. The precision syringe pump of the present invention is characterized by high sensitivity, high reliability, low power consumption and low cost, and is convenient to use.

The invention provides a hybrid power and electric system of an electric car, provides two electric sources for electric cars and solves the problems that an electric car is insufficient in endurance and is impractical due to long charging time. The hybrid power and electric system of the electric car comprises a pneumatic engine, a gas storage device, a generator, a storage battery and a motor. The pneumatic engine can receive compressed gas to generate electricity. The gas storage device provides compressed gas for the pneumatic engine. The generator is driven by the pneumatic engine to generate electricity. The storage battery can be charged by external electricity or electricity of the generator. The motor provides a power source for the electric car, and the generator is driven by the storage battery or the pneumatic engine to generate electricity to power the motor. Therefore, the electric car can be charged while being driven, endurance is increased, high-pressure gas is easy to use to inflate fast and easy to obtain, price is low, and pollution is avoided.

The invention provides a method for reducing the power consumption of a bluetooth headset. By utilizing the method, the power consumption of the bluetooth headset is reduced in a non-conversation state, namely in a shutdown state. The method is as follows: firstly, when an incoming call exists, the power supply of the headset is switched on; subsequently, a request for establishing a service level connection (SLC) is sent from the headset, a mobile phone sends a signal to inform the headset that the incoming call or an outbound call exists after the SLC is successfully established, the headset initiates a request for establishing an audio after receiving the signal, and the call is connected after the audio connection is successful; when the conversation is finished, the mobile phone is hanged off from the headset, the headset initiates a request for hanging off the call to the mobile phone, the call is hanged off after the mobile phone receives the signal, and the headset is informed; the connection between the headset and the phone is disconnected after the headset receives the signal; and the power supply of the headset is switched off. By utilizing the method, the standby time of the headset is omitted, the energy consumption of the headset is saved, and the frequency of charging the mobile phone is reduced.

The present invention provides a flat plate type mobile terminal with at least one auxiliary touch display screen module. The mobile terminal comprises: a mobile terminal main body which has a planar front surface, a single main display screen located on the front surface of the mobile terminal main body, and at least one auxiliary touch display screen module, wherein each auxiliary touch display screen is provided with an auxiliary display screen and a touch sensor, and each auxiliary display screen is located on the front surface where the main display screen is located, and is arranged at the periphery of the main display screen; and the display area of each auxiliary display screen is not beyond 20% of the display area of the main display screen. According to the flat plate type mobile terminal with the at least one auxiliary touch display screen module, provided by the present invention, by arranging the auxiliary touch display screen module at the side edge of the main display screen to perform separated and classified display on concise information and to perform operation, usage of the high electricity-consumption main display screen is significantly reduced; and meanwhile, electricity consumption of a display chip is reduced, thereby reducing charging frequency of a device and prolonging usage time of the device.

The invention discloses a shared parking management system. Remote monitoring and management of stereo garage parking spaces, planar parking spaces and roadside parking spaces are realized. Accordingto the system, the stereo garage does not need to be on duty and operates fully automatically, safely and reliably, publishing, drainage and charging management of parking space information includingstereo parking spaces, planar parking spaces and roadside parking spaces are achieved, the time-sharing sharing function of the parking spaces is provided, the use efficiency of parking space resources is improved, and parking space sharing persons can gain benefits; the shared parking management system comprises a cloud platform, a mobile terminal, a stereo garage, a parking space lock, an unmanned aerial vehicle for patrolling roadsides and the like, a user uses the mobile terminal to be connected to the cloud platform, parking space reservation, parking, vehicle taking and payment are achieved, and autonomous control of the mobile terminal is achieved in the whole process. According to the invention, the operation cost of the stereo garage, the roadside parking spaces and the parking lot is effectively reduced, the turnover rate of the parking spaces and the experience feeling of users are improved, the shared ecology of the plane and the stereo parking spaces is established, and great contribution is made to relieving the parking difficulty.

The invention discloses a charging device and electronic equipment, belongs to the technical field of electronics and solves the technical problem that conventional wearable electronic equipment needs to be charged frequently. The charging device comprises magnetoelectric components and a charging battery; when the charging device moves, the magnetoelectric components produce electric energy which can be used for charging the charging battery. The charging device can be used for smart watches and other wearable electronic equipment.

The present disclosure discloses a timekeeping apparatus, comprising: a case; a display area on a side of the case; a light source near the display area, the light source being capable of emitting light with different colors to indicate different types of messages received by the timekeeping apparatus.

The invention discloses a novel heterogeneous multi-core embedded real-time system energy consumption optimization scheduling algorithm. The task scheduling scheme is encoded into a binary matrix, a local update matrix is also set, the matrix values of the corresponding positions in the scheduling scheme matrix are replaced by the full permutation matrix values of the local updating matrix, and ascheduling solution satisfying the deadline and consuming the lowest energy is found out from all the scheduling solutions generated by the replacement, and the scheduling solution is taken as a new scheduling scheme matrix, so as to realize the local optimization of the scheduling scheme matrix. The local updating matrix is moved continuously, the optimal operation is carried out cyclically, andthe optimal energy dispatching solution of the multi-core dispatching system is obtained under the premise of guaranteeing the real-time performance. Thousands of comparative experiments show that compared with the traditional genetic algorithm, the method of the invention can reduce the energy consumption of the embedded equipment by 13.37-72.92%, can prolong the working life of the embedded equipment, and has important significance for the practical application of the embedded equipment.

The invention discloses a tubular heater as well as a preparation method and application thereof. The preparation method comprises the steps of (1) providing a ceramic-based cast film; (2) forming a first insulating layer on at least part of the surface of the cast film; (3) forming an electrode layer on at least part of the surface of the first insulating layer; (4) forming a second insulating layer on at least part of the surface of the electrode layer; (5) winding the composite film obtained in the step (4) to form a tubular structure provided with a multilayer heater assembly; (6) enablingthe tubular structure product obtained in the step (5) to be subjected to isostatic pressing treatment and high temperature co-firing treatment; (7) welding an electrode lead on the product obtainedin the step (6) so as to obtain the tubular heater. The method provided by the invention is simple in process and low in energy consumption; furthermore, the prepared tubular heater is high in strength, falling-resistant, low in heat transfer and heat dissipation coefficients and more uniform in heating, can save energy to the utmost extent, reduces the charging frequency of an electronic cigarette, and solves the problem of heat generation of a whole cigarette rod.

The invention provides a solar-energy smart bracelet which comprises a base. Two ends of the base are pivoted to bracelet bands. The middle section of the base is formed by a transparent sealed tube. A cylindrical inner core is arranged inside the sealed tube. The inner core is connected to the sealed tube through rotary shafts coaxial with the sealed tube. A photovoltaic plate is arranged on the half circumferential face of the inner core and electrically coupled to a charging module and a storage battery inside the inner core. A display screen arranged in the inner core can be seen on the other half circumferential face of the inner core. A soft magnet is arranged at the bottom of the sealed tube, and an electromagnet is arranged behind the photovoltaic plate. A vibration sensor is arranged in the inner core. When the vibration sensor detects vibration, the electromagnet is switched on. The gravity center of the inner core is located between the rotary shafts and the display screen. The solar-energy smart bracelet has the advantages that solar energy can be fully utilized to charge the battery of the bracelet, and the charging trouble can be eliminated or reduced.

The invention provides a clutch generating device applied to a wheel axle. The clutch generating device comprises a housing, a stator base, a rotor base, and a clutch mechanism. The outer rim of the housing is fixed to the chassis or the suspension of a vehicle. The wheel axle of the vehicle may pass through the housing in order that the wheel axle may rotate relative to the housing. The stator base is fixed to the inner rim of the housing and is provided with multiple stators along the circumference of the wheel axle. The stators can be electrically connected with a power module in the vehicle. The rotor base movably sleeves the wheel axle and is provided with multiple rotors along the circumferential direction. The rotors correspond to respective stators. The clutch mechanism comprises a driven ring, a rotary disc, multiple connecting rods, multiple driving blocks, and multiple elastic elements. The clutch generating device is easy to use, contributes to improvement in vehicle power consumption, and may continuously and proactively generates electric power in the driving of the vehicle.

The invention provides a smart bracelet, which is characterized by comprising a base, wherein both ends of the base are connected to a bracelet belt. The smart bracelet is characterized in that the middle section of the base is formed by a transparent sealing tube, a columnar inner core is arranged inside the sealing tube, the inner core and a rotation shaft coaxial with the sealing tube form an axial connection on the base, the surface of the inner core is provided with a photovoltaic module, the other surface is provided with a display screen, both ends of the rotation respectively extend into the vertical direction slideway inside the base, both ends of the rotation shaft are respectively connected to a gear, the upper end and lower end of a gear rack are restrained by a restraining spring, the gear rack, the gear and the rotation shaft are balanced at the position for making the front surface of the photovoltaic module be upward when the smart bracelet is stationary and the front surface of the base is upward, the stiffness of the restraining spring is restrained to make the gear rack overcome the spring force of the restraining spring so as to slide to the limit position of the upper end or the lower end of the slideway, and when the gear rack is at the limit position of the lower end of the slideway, the gear rotates to make the front surface of the display screen be upward. According to the present invention, the smart bracelet completely uses solar energy to charge so as to reduce the trouble of the charging.

The invention discloses a precise alarm system for enhanced protection of a formaldehyde detector, comprising a signal trigger chip U1, a capacitor C4, a capacitor C2, a power input circuit, a trigger alarm circuit, a drive protection circuit, and a drive enhancement circuit. The invention provides a formaldehyde detector enhanced protection precision alarm system, which reduces the power consumption of the alarm system, improves the operation stability and accuracy of the system, thereby greatly improving the use value and use effect of the product, and better Improve the service life of the product.

The invention relates to an intelligent door lock and a control method and device of the intelligent door lock. The control method comprises the steps that the standby time of the intelligent door lock is obtained, whether the standby time meets a preset closing condition or not is judged, and when the judgment result is yes, a wireless communication module of the intelligent door lock is closed. According to the control method, the problem that the intelligent door lock is difficult to continuously and reasonably save electricity on the basis of standby is solved, so that the electricity consumption of the intelligent door lock can be saved under the condition of not interfering normal use of a user, the charging frequency or replacement frequency of a battery is reduced, the service life of the intelligent door lock is prolonged, and thus, the user experience and satisfaction degree are improved.

The invention discloses a formaldehyde detector alarm system provided with a drive enhancement circuit, which includes a signal trigger chip U1, a capacitor C4, a capacitor C2, a power input circuit, a trigger alarm circuit, and a drive enhancement circuit. The invention provides a formaldehyde detector alarm system equipped with a drive enhancement circuit, which reduces the power consumption of the alarm system and improves the operation stability of the system, thereby greatly improving the use value and effect of the product, and better Improve the service life of the product.