73 results about "Unit charge" patented technology

An image capturing apparatus includes an image sensor, a power supply circuit, and a power storage device. A charging unit charges the power storage device using power from the power supply circuit. A control unit performs control such that in a first operation state of the image capturing apparatus, power is supplied from the power supply circuit to the image sensor without power being supplied from the power storage device to the image sensor. The control unit further performs control such that in a second operation state of the image capturing apparatus in which a maximum power consumption of the image sensor is higher than in the first operation state, power is supplied from the power supply circuit and the power storage device to the image sensor.

The invention discloses a detection device with a power supply self-compensation function and a compensation method thereof. The compensation method comprises the following steps: detecting whether an external power supply is switched on or not; if the external power supply is switched on, judging whether the power supply voltage of the external power supply is higher than the working voltage threshold of the sensor unit through the low-voltage detection circuit; if yes, the foot voltage control switch is switched on, the under-voltage control switch is not switched on, and an external power supply supplies power to the detector detection part; if the voltage is lower than the threshold value, the undervoltage control switch is conducted and the foot voltage control switch is not conducted, the energy storage unit charging and discharging management circuit supplies power to the energy storage voltage detection circuit to enable the energy storage unit power supply control switch to be conducted, and the power is transmitted to the detector detection component through the power supply management circuit for automatic compensation power supply; and if the external power supply is not switched on, the external power supply control switch is not switched on, and the energy storage unit does not self-discharge to supply power to the sensing unit of the detector detection part. According to the invention, automatic compensation when power supply of the detector detection part is insufficient is realized.

A data update device for electronic control devices includes: a charge schedule setting unit for setting a charge schedule of a battery of an electric vehicle; a charge control unit for charging the battery according to the charge schedule; and a data update control unit for updating data of one electronic control device by acquiring update data from a center device on a condition that an acknowledgement of the user is obtained when receiving a notification of the update data from the center device together with information about time required for the updating, and determining that the updating is possible even if the charge control unit charges the battery according to the charge schedule.

The invention provides a modularized direct current charging pile with a power pool scheduling function and a control method thereof, and the charging pile comprises at least one modularized single charging pile which comprises a plurality of plugging power modules, a shared power pool structure, a plurality of first type charging guns, and a power manager. A plurality of plugging power modules of any modular single charging pile form a single annular structure through a shared power pool structure, or a plurality of plugging power modules of at least two modular single charging piles form a shared annular structure, and the first type of charging guns of the at least two modular single charging piles are bridged through a bridging structure; and the power manager obtains the charging demand information of the charging object, and schedules the plugging power module from the monomer ring structure or the shared ring structure according to the charging demand information so as to charge the charging object, so that the power resource utilization rate can be improved, the equipment expansibility can be enhanced, and dynamic power scheduling can be realized.

A receiver for wirelessly receiving transmitting power includes a control unit, a charging unit charged by the transmitting power, a sensor configured to measure a physical quantity, and a transmitter configured to transmit the physical quantity. The control unit includes a voltage acquisition module to detect a charging voltage of the charging unit, a threshold comparison module to compare the voltage with a threshold, and a power receiving state determination module to determine a power receiving state based on the comparison. The control unit includes a transmission control module to determine whether transmission is permitted based on the state. A transmission timing control module causes the transmitter to transmit at a predetermined interval. If transmission is not permitted, the timing is delayed by a predetermined time. If the timing is consecutively delayed a predetermined number of times, the transmission is performed after a next predetermined transmission interval.

The invention relates to a driving circuit, a display panel and a display device. The driving circuit comprises a first driving unit, a second driving unit and a blank area control signal line, the first driving unit and the second driving unit are connected in parallel and then connected with the blank area control signal line, a first data signal line and a second data signal line, in the first stage, the blank area control signal line is in high level, the first driving unit is conducted, and the second driving unit is connected with the second data signal line. In the first stage, the blank area control signal line is at low level, the first driving unit is disconnected, the second driving unit is connected, the first driving unit charges the first data signal line, the second data signal line, the first sub-pixel controlled by the first data signal line and the second sub-pixel controlled by the second data signal line, and in the second stage, the blank area control signal line is at low level, the first driving unit is disconnected, and the second driving unit is connected. And the second driving unit charges the first data signal line and the second data signal line, so that the color of the first sub-pixels is consistent. The technical problem of color crosstalk of the display device is solved.

The invention discloses a photovoltaic hydrogen production grid-connected system and method based on multi-state cooperative scheduling, and relates to the field of new energy comprehensive utilization. The system solves the problems of unstable operation of an electrolytic bath, low comprehensive utilization rate of energy, poor economic benefit and the like caused by intermittency and volatility of photovoltaic power generation in the prior art. The system comprises a photovoltaic power generation unit, an energy storage unit, at least one electrolytic bath unit, a hydrogen storage unit and a controller. The controller monitors the photovoltaic power generation power, the charging state of the energy storage unit and the hydrogen storage state of the hydrogen storage unit in real time, and executes the following operations according to a preset multi-state cooperative scheduling strategy: starting the electrolytic cell units in a grading manner according to a photovoltaic power threshold value; the energy storage unit is used for smoothing photovoltaic power fluctuation and stably supplying power to the electrolytic cell; in addition, on the basis of two independent triggering conditions that the energy storage unit reaches the upper limit or the hydrogen storage unit reaches the upper limit, surplus electric energy of the system is dynamically sold in a grid-connected mode. The device is also suitable for the fields of integrated photovoltaic power generation, electrochemical energy storage and water electrolysis hydrogen production.

A system unit (11) for installation in a work machine (10) comprises a unit frame (50) and a unit power system (60) mounted to the unit frame. The unit frame includes a power source bracket (51) that receives a power source (45). The unit frame is used to mount and dismount the system unit from the work machine. A unit power system is mounted to the unit frame and connected to a power source. When the system unit is installed in the work machine, the unit power distribution interface (61) electrically connects at least one motor (41) of the work machine to supply power thereto. The unit charging interface is mounted to the unit frame and connected to the unit power distribution interface. The unit charging interface is connected to an external power source for charging the power source when the power source is mounted to the frame.

Charging cable unit (40) for a charging station (30) of an electric vehicle charging station, characterized by the following features: - the charging cable unit (40) includes a cooling unit (10) and a charging cable (17), - the charging cable (17) has a secondary coolant circuit, - the cooling unit (10) includes a heat exchanger (20) with first connections (11, 13) and second connections (15, 16), - the second connections (15, 16) are fluidically connected to the secondary coolant circuit and - the cooling unit (10) is designed to cool the secondary coolant circuit when the first connections (11, 13) are fluidically connected to a common primary coolant circuit of the electric vehicle charging station.

The invention provides a new energy power station digital-intelligent integrated grid-connected cooperation method and system, and relates to the technical field of energy storage charging and discharging control. The method comprises the following steps: acquiring the environment temperature, irradiance and output power of a power station; the photoelectric conversion improvement degree is determined based on the current environment temperature and the optimal working temperature, the high-frequency detail component of the irradiance time sequence is extracted, the amplitude discreteness of the high-frequency detail component is determined, and the high-frequency cooperative inhibition degree is determined in combination with the photoelectric conversion improvement degree; an energy spectrum of the output power time sequence is extracted, a high-frequency energy change sequence is constructed, an energy attenuation deviation degree is determined based on a fitting function fitting point change slope Shannon entropy, high-frequency energy and frequency domain energy of a corresponding fitting point, and a cooperation bad interference degree is determined by combining a high-frequency cooperation inhibition degree; based on the current environment temperature, the irradiance signal and the cooperative bad interference degree, obtaining predicted output power through a power prediction model; and controlling the energy storage unit to charge and discharge based on the prediction error. According to the invention, charge-discharge cooperative control of the energy storage unit can be realized.

The driving range estimation method based on unit charge range and battery aging correction mainly includes four steps: online battery SOC estimation, periodic battery SOH update, unit SOC range estimation, and driving range estimation. This invention uses periodic battery SOH estimation to correct the battery SOC estimation, and combines unit SOC range estimation to achieve accurate driving range estimation. It has the advantages of simple model structure, low computational load, high estimation accuracy, and easy implementation in vehicle BMS. Under normal driving conditions, the maximum driving range estimation error of this invention is within 3km, which meets the operating requirements of electric vehicles.

The invention relates to an intelligent socket control method and system, and relates to the field of intelligent home technologies, and the method comprises the steps: obtaining a selected charging mode of a user; when the selected charging mode is consistent with a preset intelligent charging mode, obtaining a preset end time, controlling the intelligent socket to be electrified for a preset unit time length, and obtaining a device charging pre-sequence electric quantity and a device charging post-sequence electric quantity in the unit time length; performing calculation according to the equipment charging pre-sequence electric quantity and the equipment charging post-sequence electric quantity to determine unit charging electric quantity; performing calculation according to the post-charging sequence electric quantity of the equipment and a preset full-load electric quantity of the equipment so as to determine an electric quantity to be charged; and calculating according to the unit recharging electric quantity, the waiting recharging electric quantity and the unit time length to determine the waiting recharging time length, determining the theoretical starting time according to the preset ending time and the waiting recharging time length, and controlling the intelligent socket to be electrified and the waiting recharging time length at the theoretical starting time. According to the invention, the charging experience is good when the device is charged.

The present application belongs to the technical field of electric power energy storage, and discloses an energy storage system fast frequency regulation energy management method, system, device and storage medium, obtains a frequency variation of a grid-connected point of an energy storage system, calculates energy storage unit charging and discharging requirements, calculates charging and discharging weights of each energy storage unit according to a state of charge of the energy storage unit and an in-cabin temperature, calculates a power distribution instruction value based on the energy storage unit charging and discharging requirements and the charging and discharging weights of each energy storage unit, and transmits the power distribution instruction value to an on-site control system or an energy storage converter of the energy storage unit. The present application fully considers the inconsistency of the SOC of each energy storage unit and the in-cabin temperature, can tilt the power distribution instruction to the energy storage unit with high SOC and low in-cabin temperature during discharging, and can tilt the power instruction to the energy storage unit with low SOC and low in-cabin temperature during charging, so as to realize optimal energy management effect, improve the energy utilization efficiency of the energy storage system, and prolong the service life of the energy storage battery pack.

The invention provides a positive pole piece, a secondary battery and an electronic device. The positive pole piece comprises a positive current collector, a positive pole lug and a positive active material layer arranged on at least one side of the positive current collector, the positive active material layer comprises a first material layer and a second material layer, and the second material layer comprises a first region and a second region; along the thickness direction of the positive pole piece, the first material layer is arranged between the positive current collector and the first region, and the second region comprises a first thinned region; in the width direction of the positive pole piece, one side of the positive pole current collector is connected with a positive pole lug, the second region is adjacent to the first region, the second region is arranged on at least one surface of the positive pole current collector, and the second region is positioned between the first region and the positive pole lug; the unit charge gram capacity of the first material layer is N1, the unit charge gram capacity of the second material layer is N2, and N1 and N2 meet the following conditions: N2 is greater than N1, N2 is greater than or equal to 180 mAh / g and less than or equal to 200 mAh / g, and N1 is greater than or equal to 130 mAh / g and less than or equal to 150 mAh / g. Through the arrangement, the energy density of the secondary battery can be improved.

The present application relates to an electric vehicle charging method, apparatus, device, storage medium, and program product. The method comprises: determining a first number of charging time periods corresponding to each vehicle in the current charging time period, constructing an objective function based on the first number of charging time periods corresponding to each vehicle in the current charging time period, the unit charging cost corresponding to each charging time period of each vehicle in the first number, the charging time period, the rated output power of the charging pile, and the vehicle charging state corresponding to each charging time period of each vehicle in the first number, solving the objective function according to the constraint conditions of the objective function to determine the vehicle charging plan of each vehicle; the constraint conditions include at least one of the power constraint conditions of the power system, the charging time constraint conditions of each vehicle, and the charging demand conditions of the vehicle. The use of this method can improve the stability of the power system after the electric vehicle is connected to the charging pile.

The invention relates to the technical field of lithium battery protection, and discloses a high-safety lithium battery overcharge protection device which comprises a lithium battery charging mechanism, the middle position of the lithium battery charging mechanism is connected with an overcharge protection mechanism, the lithium battery charging mechanism comprises a positioning protection frame, and the middle position of the positioning protection frame is connected with a charging connection base. A limiting groove is formed in one side of the positioning protection frame; according to the invention, current input can be rapidly and thoroughly cut off when overcharge or current abnormity is detected; the driving motor drives the eccentric control frame to rotate through transmission of the positioning shaft and the positioning gear, so that the lifting protection frame, the power connection limiting frame and the protection frame are stably and quickly jacked up and move upwards; the charging plug of the lithium battery unit is quickly separated from the charging connection base, so that the complete power-off treatment of the lithium battery unit is realized; according to the design, the influence of continuously input micro current on the lithium battery unit is effectively avoided, the service life of the lithium battery is remarkably prolonged, and the charging safety of the lithium battery is remarkably improved.

A backup power supply system is provided with a first port, a second port, a charging circuit unit, an output circuit unit, a deterioration detection unit, and a control unit. The charging circuit unit charges the power storage unit with power input from the power supply via the first port. The output circuit unit supplies power from the power storage unit to the load via the second port in a power-off state in which the power supply is powered off. The deterioration detection unit detects a deterioration state of the power storage unit. The control unit controls, on the basis of the detection result of the deterioration detection unit, a set value of the charging voltage when the charging circuit unit charges the power storage unit.

Charging cable (100) for carrying out a charging process of an electrical storage unit (110), with: at least one measuring unit (120) for measuring charging current during operation of the charging cable (100), wherein the measuring unit (120) is assigned a control unit (130) for controlling a light source (140), wherein the charging cable (100) includes the light source (140), and the light source (140) has light elements (142), wherein the light elements (142) are arranged along the entire length of the charging cable (100), wherein the light elements (142) are arranged circumferentially at least at the ends of the charging cable (100), and where the density of the light elements (142) per unit area is increased at the ends of the charging cable (100).

The system according to this embodiment aims to optimize drone battery management and charging schedules, as well as optimize flight paths considering weather conditions and social media information. [Solution] The system according to the embodiment comprises a management unit, a scheduling unit, a charging unit, an optimization unit, and an analysis unit. The management unit manages the battery status of the drone. The scheduling unit creates a charging schedule based on the battery status managed by the management unit. The charging unit charges the drone based on the charging schedule created by the scheduling unit. The optimization unit analyzes weather data and optimizes the flight path. The analysis unit analyzes information from social media and avoids inappropriate routes.

The present invention addresses the problem of improving the degree of freedom of the layout of a work place. A tool system (1) comprises an electric tool (4) and a holder (3). The electric tool (4) is used by a robot (5). The electric tool (4) in the state of not being used by the robot (5) is set in the holder (3). The electric tool (4) has a battery unit (41) and a drive unit (42). The drive unit (42) is driven by power supplied from the battery unit (41). The holder (3) has a charging unit. The charging unit charges the battery unit (41) of the set electric tool (4).

Provided are a secondary battery degradation state estimation system, secondary battery degradation state estimation method, and storage medium that improve the accuracy of estimating secondary battery degradation using a learned model. The secondary battery degradation state estimation system comprises: a state variable measurement unit that measures the state variables of the secondary battery; a preprocessing unit that outputs input data; and a degradation state estimation unit that estimates the degradation state of the secondary battery. The preprocessing unit includes a state variable processing unit that sets a unit charge / discharge amount. The state variable processing unit sets a recent interval closest to the current time and one or more past intervals preceding the recent interval as desired intervals derived from the unit charge / discharge amount used in calculating the input data. For each of the set intervals, the state variable processing unit calculates a voltage change based on the state variable as interval data, and outputs the calculated interval data as part of the input data.

The invention provides an energy storage unit charging and discharging safety monitoring method, an energy storage system and a storage medium, and the method comprises the steps: obtaining the charging and discharging state of at least one battery pack in a series battery pack in the charging and discharging process, the charging and discharging state comprising a first type of abnormal state and a second type of abnormal state, the first type of abnormal state is a state that the charging rate is too fast or the discharging rate is too slow, and the second type of abnormal state is a state that the charging rate is too slow or the discharging rate is too fast; according to the charging and discharging state, determining the number of first-class anomalies and the number of second-class anomalies within a preset duration; calculating a recent safety coefficient according to the first type of abnormality times and the second type of abnormality times; and determining a first risk level of the energy storage unit according to the range of the recent safety coefficient. By applying the charging and discharging safety monitoring method of the energy storage unit, the safety of the energy storage unit can be improved by monitoring the charging and discharging states of the battery pack in real time.

The invention relates to an automobile domain controller and a control method thereof. The automobile domain controller comprises a voltage conversion module, a power supply network and a control module, the voltage conversion module comprises a first conversion unit and a second conversion unit; the first conversion unit and the second conversion unit are used for converting a first voltage output by an external power supply into a second voltage; the first conversion unit charges the power supply network by using the second voltage; the control module is used for controlling the second conversion unit to be turned on and the first conversion unit to be turned off when the voltage value of the power network meets a first voltage threshold; the second conversion unit is used for supplying power to the power network; the automotive domain controller is used for supplying power to the first load according to the first voltage and supplying power to the second load according to the second voltage through the power supply network. According to the invention, the second voltage is adopted to supply power to the second load, and the first voltage is adopted to supply power to the first load, so that power supply to the loads with two voltage requirements can be completed by only adopting one external power supply.

Liners (150), fittings (11-22), and spacers (23-25) are provided to assemble the jet (170) units, which work as explosives (110) and detonators (120) to form stand-off distance and air-deck (140) space. The liners (150) release jets (170) and the fittings (11-22) and spacers (23-25) are designed to attach the liner (150) firmly to the explosives (110), inducing the cavity effect. The objective of the present invention is to provide a blasting method using a jet (170) unit to overcome the limits of sympathetic detonation, applying a mechanism that is ideal according to the analysis of observations in blast-hole (100) blasting. The application of jet (170) units for jet (170) detonation in blast-hole (100) blasting overcomes the performance limits of explosives (110) manufacturing and the conceptual limits of detonators (120) functionalities and improves the channel effect, dead pressing, loss of power, and stopping of detonation etc. Particularly, the application of controlled blasting and air-decking can be carried out without restriction while maintaining the safety of the slurry or emulsion explosives (110).

A charging control method and charging control apparatus for a vehicle charging device. The vehicle charging device is mounted on a traveling rail hoisted at the top of a parking lot, and charging base stations which are connected to charging guns are arranged along the traveling rail and correspond to parking spaces in the parking lot. The vehicle charging device comprises a charging main unit mounting platform and a charging main unit, which is detachably mounted to the charging main unit mounting platform. The charging control method comprises: a charging main unit mounting platform receiving a charging instruction for transporting a charging main unit to a target charging base station to execute a charging task; the charging main unit mounting platform moving to the charging main unit, and mounting the charging main unit thereon; the charging main unit mounting platform with the charging main unit mounted moving to the target charging base station; and the charging main unit mounting platform unmounting the charging main unit, and electrically docking the charging main unit with the target charging base station, wherein a movable plug-in module of the charging host is electrically connected to a static plug-in module of the charging base station, such that the charging main unit charges a vehicle by means of a charging gun connected to the charging base station.

A gate driver has a plurality of stages for outputting a gate signal for imaging at display driving and outputting a gate signal for sensing at sensing driving after the display driving. Each stage of the plurality of stages includes a pixel row selection unit and an output unit, the pixel row selection unit charging a first node with a first preceding stage carry signal according to a pixel row selection signal of a gate-on voltage during the display driving and charging a second node with a first high potential power voltage according to a sensing start signal of the gate-on voltage and a charged voltage of the first node during the sensing driving, the output unit outputting a scan clock of the gate-on voltage as the gate signal for sensing while the second node remains in a charged state at the sensing driving, wherein the first high potential power voltage is higher at the sensing driving than at the display driving.

The invention discloses a piezoelectric underwater acoustic chip array structure and a chip, and belongs to the technical field of micro electro mechanical systems. The chip array structure sequentially comprises a sensitive structure layer, a lower electrode insulating layer and an SOI layer from top to bottom, the sensitive structure layer comprises an upper electrode wafer, a piezoelectric layer, an upper and lower electrode interconnection line, a lower electrode connection line and a lower electrode wafer; the SOI layer comprises a device silicon layer, a buried oxide layer and a back substrate, cavities are formed in the back substrate, and each cavity defines a chip unit; and the upper electrode wafers of the chip units are electrically conducted with the lower electrode wafers of the adjacent chip units through the upper and lower electrode interconnection lines and the lower electrode connecting lines to form a tandem array structure. Under the condition of keeping unit charge output unchanged, the total equivalent capacitance of the array is reduced, the output voltage is improved, and the sensitivity of the piezoelectric underwater acoustic chip is further improved.

The invention relates to the technical field of magnetic shielding, and discloses a magnetic shielding degaussing wide-range pulse compensation circuit and device.A primary energy storage unit supplies power to a first energy storage element through a first charging element, and a first control element adjusts the charging speed of the first energy storage element; the power compensation unit charges the second energy storage element through double paths, and the second control element is switched to realize power compensation; the resonance modulation unit is connected with the resonance adjustment module through a third control element, under-damped oscillation of the degaussing coil is maintained, resonance parameters are adjusted, and the degaussing coil generates a degaussing pulse magnetic field. The primary energy storage unit adjusts the charging speed of the first energy storage element through the first control element, different working modes can be flexibly adapted, the requirement for rapid energy supplementation after long-term idling can be met, the scene of short-time repeated use and single-time large energy output can be coped with, and the energy storage adaptability and the energy utilization efficiency of the circuit are improved.

The utility model provides test equipment, which comprises a current acquisition unit, a charging unit, a controller and a clamping unit used for fixing equipment to be tested, the charging unit comprises a charging base and a lifting unit connected with the charging base, the charging base is provided with at least one first charging pin, the charging unit and the clamping unit are oppositely arranged, and the lifting unit is connected with the lifting unit. The controller is used for controlling the lifting of the lifting unit so as to adjust a first state in which the charging unit charges the to-be-tested equipment clamped by the clamping unit, and the current acquisition unit is connected with any first charging pin and is used for acquiring current data of the first charging pin. In the technical scheme, the lifting unit of the charging unit is used for adjusting the relative position of the to-be-tested device and the charging unit to simulate the charging scene, and the current acquisition unit is used for acquiring the current data in the test process, so that the charging performance in the test process is subsequently analyzed; the effect of automatically and efficiently testing the charging performance of the to-be-tested equipment is achieved.

The invention provides an energy storage system control method and system for a photovoltaic module, and electronic equipment. The method comprises the steps of collecting a real-time output power signal and related operation environment data of the photovoltaic module; performing empirical mode decomposition on the output power signal to obtain a plurality of intrinsic mode function components and residual errors; hilbert transformation is carried out on each intrinsic mode function component to extract an instantaneous characteristic of each intrinsic mode function component, and the instantaneous characteristic comprises an instantaneous frequency and an instantaneous amplitude; according to the instantaneous characteristic of the intrinsic mode function component and the trend prediction of the residual error, synthesizing to obtain a photovoltaic power prediction value at a future moment; constructing a multi-objective function model according to the photovoltaic power predicted value; solving the multi-objective optimization model under the condition of meeting the power balance constraint and the energy storage unit charge state constraint to obtain a power distribution instruction; and controlling the energy storage system to charge and discharge according to the power distribution instruction.