16212results about How to "Stable job" patented technology

The invention relates to a high-capacity lithium-ion electrolyte, a battery and a preparation method of a battery, in particular to the high-capacity lithium-ion electrolyte and the battery using the high-capacity lithium-ion electrolyte and the preparation method of the battery. The electrolyte disclosed by the invention comprises lithium salt and non-aqueous organic solvent, and also consists of the following components in weight percent in terms of the total weight of the electrolyte: 0.5-7% of film-forming additive, 0-15% of flame-retardant additive, 2-10% of antiovefill additive, 0.01-2% of stabilizer and 0.01-1% of wetting agent; the electrolyte can enable the anode with high Ni content to work stably, and reduce the battery cost; the high-capacity lithium-ion battery can perform high ratio capacity and excellent safety and high temperature property and cyclic life fully due to the addition and synergetic functions of various functional additives.

The invention relates to a fracturing transmission and high-pressure discharging system. The fracturing transmission and high-pressure discharging system comprises a chassis and is characterized in that a high-power engine, a transfer case, a plurality of variable displacement plunger pumps and a double-acting fracturing pump are arranged on the chassis, the output end of the high-power engine is connected with the input end of the transfer case, the output end of the transfer case comprises a plurality of power take-off ports, and each power take-off port is connected with one variable displacement plunger pump; the variable displacement plunger pumps drive the double-acting fracturing pump through a hydraulic system. The fracturing transmission and high-pressure discharging system further comprises a system radiator and a heat dissipation plunger pump used for driving the system radiator, and the heat dissipation plunger pump is connected with one power take-off port of the transfer case. The power take-off ports of the transfer case and the variable displacement plunger pumps are arranged annularly. The fracturing transmission and high-pressure discharging system has the advantages that hydraulic driving replaces mechanical transmission, and working vibration is reduced; the layout space of a whole vehicle is saved, and meanwhile, operating efficiency and the stability of the whole vehicle are improved.

The invention discloses a multi-degree-of-freedom controllable mechanism type stacking robot, which comprises a pedestal, a rotary rack, an arm lifting mechanism, an end effector translation retaining mechanism and a flange, wherein the rotary rack is connected to the pedestal through a rotary pair; the arm lifting mechanism comprises a large arm, a small arm, a first driving rod, a first connecting rod, a second driving rod and a second connecting rod; all the rods are connected through hinges; the end effector translation retaining mechanism comprises a parallelogram mechanism consisting of the large arm, a first auxiliary connecting rod, a triangular auxiliary rack and the rotary rack and a parallelogram mechanism consisting of the small arm, a second auxiliary connecting rod, a triangular auxiliary rack and an end effector translation retainer; all the rods are connected through hinges; the flange is connected to the end effector translation retainer through the rotary pair; and different end effectors can be arranged according to actual requirements. The multi-degree-of-freedom controllable mechanism type stacking robot has the advantages of simple structure, high bearing capacity, large working space, flexibility in operation, capabilities of driving through a servo motor for control, realizing intelligence and digital control and meeting handling and stacking requirements of high speed, heavy load, precision and the like and extremely broad application prospect.

The invention provides a shifting register unit and a driving method thereof, a gate driving circuit and a display device. The potential of a pull-up control node is pulled up continuously by output signals of a multistage shifting register circuit, output noise of the shifting resister unit can be released through the high potential of the pull-up control node, and therefore, quality of display device products is improved, and service life and long-term performance stability of GOA (gate drive on array) circuits are guaranteed. The shifting register unit comprises an input module, a pull-up module, a pull-down control module, a pull-up control module and a pull-down module.

The embodiment of the invention provides a shifting register unit, a gate driving circuit and a display device, and relates to the technical field of display. The shifting register unit comprises an input module, a first output module and a second output module. Compared with the prior art, the invention has the advantages that the structure of the shifting register unit can be effectively simplified; and the using quantity of transistors is further decreased. The embodiment of the invention is used for realizing scanning driving.

The invention discloses a switch converter, a control circuit of the switch converter, and a control method of the switch converter. By conditioning ramp compensation signals according to the load condition, the overshoot degree of the output voltage of the switch converter is reduced during the instantaneous descending of load current while stable operation of the switch converter is maintained, and the transient response of the switch converter is improved.

The invention discloses a shifting register unit and an array substrate gird driving device. With the adoption of the shifting register unit and the array substrate gird driving device, low-noise signals can be output by the shifting register unit and the shifting register unit can stably work for a long time period. The shifting register unit provided by the invention comprises an input module, a resetting module, a pull-upward module, a first pull-downward module, a first pull-downward control module, a second pull-downward module and a second pull-downward control module, wherein the input module is used for supplying a first working voltage to a pull-upward node of the pull-upward module; the resetting module is connected with the pull-upward node and is used for reducing the voltage of the pull-upward node to a second working voltage; the pull-upward module is connected with the pull-upward node, is used for storing the first working voltage and supplies a first clock signal to an output terminal; the first pull-downward module is used for supplying a third working voltage to the output terminal; the first pull-downward control module supplies a second clock signal to the pull-downward node, and supplies the third working voltage to the pull-downward node; the second pull-downward module is used for supplying the third working voltage to the pull-upward node and the output terminal; and the second pull-downward control module is used for inputting the second clock signal to the pull-downward node.

The invention provides an intelligent photovoltaic array washing car used for washing photovoltaic arrays of a large-scale ground photovoltaic power station. A washing head supporting and locating unit and a power unit are arranged on the head portion and the tail portion of a crawler base respectively, a water storage unit is arranged adjacent to the power unit, and a washing head unit is provided with range finder sensors used for measuring the distance between the washing head unit and solar cell panels; the washing head supporting and locating unit comprises a movable base capable of rotating and transversely moving and a working arm set provided with a main arm and an end arm, wherein the main arm and the end arm can pitch respectively; a water pump of a water supply unit is driven by a hydraulic motor; a computer is used as a control kernel of a main control module of an operation control unit; a pair of proportional directional valves of the hydraulic control unit controls two base crawler traveling motors, and other directional valves are electromagnetic directional valves controlled by the main control module. According to the intelligent photovoltaic array washing car, the position and the posture of the washing head unit relative to photovoltaic array panels and the position and the posture of a car body relative to the photovoltaic arrays can be automatically controlled, and the intelligent photovoltaic array washing car is intelligent, efficient, flexible in operation, high in adaptability, easy and convenient to operate, concise in structure and good in washing effect.

The invention relates to a method for detecting surface defects of a dustproof cover of a bearing based on machine vision, which comprises the following steps: a, obtaining a gray level image of a to-be-detected bearing; b, carrying out separation on the gray level image so as to obtain a ring image of the dustproof cover of the bearing; c, carrying out grey level transformation and adaptive median filtering preprocessing on the ring image; d, carrying out threshold segmentation on the ring image by using a maximum interclass variance method, extracting an edge of the ring image of the dustproof cover of the bearing after threshold segmentation by using a Roberts edge detection operator; e, calculating the numbers of which the numerical values are 1 in the image area every two degrees for the ring image of the dustproof cover of the bearing; f, providing a template bearing image, and obtaining a deflection angle sigma through calculating; g, carrying out separation on the image so as to obtain character areas and non-character areas of the ring image of the dustproof cover of the bearing; and h, carrying out surface defect judgment on corresponding character areas and non-character areas in the ring image of the dustproof cover of the bearing according to the number of connected areas and the defect area. By using the method disclosed by the invention, automatic detection can be achieved, the visual detection workload of artificial detection is reduced, the detection efficiency is improved, and the method is safe and reliable.

The invention relates to the technical field of detection, and discloses detecting device and method. The detecting device comprises an image acquiring module and an image processing module, wherein the image acquiring module acquires image information of a liquid crystal display panel to be detected, and the image processing module is in signal connection with the image acquiring module. The image processing module compares received image information with a defect database and judges defect level of the liquid crystal display panel to be detected. During use of the detecting device, the image acquiring module can acquire image information of any position of the liquid crystal display panel to be detected, the image processing module compares received the image information acquired by the image acquiring module with the defect database and judges the defect level of the liquid crystal display panel to be detected. Accordingly, by the detecting device, defect identification rate and detection efficiency of the liquid crystal display panel are improved.

The invention discloses a needle amperometric determination type glucose sensor for subcutaneous tissue real-time monitoring and manufacturing method thereof. The sensor comprises a needle reference electrode (2) and at least one needle working electrode (1) including a conducting layer (8) and an enzyme membrane layer (6), and is characterized in that the working electrode (1) further comprises a polymer material inner membrane layer (7) and a polymer material control diffusion layer (5), and the conducting layer (8), the polymer material inner membrane layer (7), the enzyme membrane layer (6) and the polymer material control diffusion layer (5) are coated in turn from inner to outside. According to the manufacturing method in the invention, the glucose sensor has good stability, high flexibility, wide linear range of output current and glucose concentration, short response time, continuous real-time monitoring, good fastness and stability of enzyme bonding, high flexibility, selectivity and repeatability.

The invention discloses a drive circuit capable of improving power factors of an alternating current light emitting diode (AC LED) lamp. The drive circuit comprises a rectifier bridge, wherein two input terminals of the rectifier bridge are connected with AC voltage. The drive circuit is characterized in that: the positive output terminal of the rectifier bridge is connected with positive terminals of n serially connected LED lamp strings and detection terminals of n self-controlled constant-current circuits; the negative output terminal of the rectifier bridge is connected with the output terminals of the n self-controlled constant-current circuits; the negative terminal of the nth LED lamp string is connected with the input terminal of the self-controlled constant-current circuit with serial number of n, wherein n is more than or equal to 2 but less than or equal to 10; and in the n serially connected LED lamp strings, the number of LEDs in each lamp string is the same. The drive circuit uses a circuit design method of automatically controlling operating modes of the n constant-current circuits in stages by detecting AC input voltage so as to greatly improve the power factor, reliability and safety of the AC LED; and an AC/DC converter is not needed to be installed in the lamp, and then the failure rate of equipment is reduced. Furthermore, the drive circuit has the advantages of novel structure, simple circuit, high power factor, long service life, good power-saving effect and the like.

The invention discloses a wireless data-image dual acquirement anti-electricity-theft monitoring system and method which uses a microwave body sensor to conduct the real time detection to activities of people around an electricity meter box. Based on the method of the image shooting of a camera, the monitoring system provided by the invention uses a camera to continuously shoot and store the images of the activities of people around the electricity meter box and can real time transmit alarming information, electricity meter data and image information to a motoring server through GPRS network; and then, the motoring server can send the received alarming information to the mobile phones or computers of users in time, and users can read the alarming information from the mobile phones or computers of users in distance. Besides the functions of remote electricity meter data acquiring, the anti-electricity-theft monitoring and real-time alarming, the monitoring system also can transmit field images in time and obtain images stored by field equipment later for providing convincible proofs during handling the electricity theft of illegal users.

The invention discloses a gimbal device of a rolling drum-type washing machine. The gimbal device comprises at least two annular chambers which are in coaxial with a rolling drum and are arranged at the edge of the rolling drum, wherein at least one chamber is a sphere gimbal provided with a grounder; and at least one chamber is a liquid gimbal provided with flowing liquid. The two different counterweights of the grounder and the liquid are utilized for respectively generating at least two counterbalances with different reaction speeds, thereby improving equilibrium state of rotation when the rolling drum of the washing machine dehydrates. When the rotation speed is less than the point of resonance of the rolling drum and an outer drum, the liquid gimbal absorbs vibration. When the rotation speed exceeds the point of resonance and is stabilized, the sphere gimbal generates high degree of vibration to absorb the vibration of the outer drum. For offset exceeding sphere volume, the liquid gimbal absorbs the vibration. The gimbal device can restrain vibration amplitude of the outer drum when starting and stably rotating, and realizes the purposes of low vibration, low noise and low cost.

The invention discloses a multi-channel parallel near infrared spectrum imaging system. A multi-wavelength light emitting diode (LED) is applied to finishing emission of near-infrared light. An avalanche photodiode is used for detecting a weak optical signal, the simulating lock-in amplifier technology is used for achieving amplification of the signal, and a near infrared spectrum cerebral function imaging helmet disclosed in Chinese patent application CN200520002784.8 can be used for improving the partial unreasonable design of a self-adaptation head portion. The multi-channel parallel near infrared spectrum imaging system can achieve continuous rapid accurate detection and collection of cerebral blood oxygen signals, overcomes the defect of an existing functional near infrared system, and brings superiority of the near infrared spectrum imaging technology compared with other cerebral function imaging technologies into full play.

In order to solve the problems that the good material crushing effect and cleaning easiness of an existing soybean milk machine can not be achieved at the same time, and the uniformity of the crushing effect is difficult to guarantee, the invention provides a soybean milk machine with a small-space crushing cover. According to the soybean milk machine, the unsealed small-space crushing cover is arranged on the lower portion of a lower cover of a machine head, a cutter body is located inside the unsealed small-space crushing cover, the cutter body is provided with a water pumping part which enables water in a cup body to move towards the unsealed small-space crushing cover in the rotating process, the unsealed small-space crushing cover is provided with at least one bottom feed port and a plurality of discharge ports, and the maximal permission passing size of materials on the discharge ports is smaller than the original size of materials to be crushed. According to the soybean milk machine with the small-space crushing cover, material crushing is divided into the two phases of small-space concentrated crushing and cyclic crushing, the material crushing effect is made to be greatly improved, the uniformity of the crushing effect is guaranteed, meanwhile, the small-space crushing cover can be conveniently cleaned, and the problem that the good material crushing effect and cleaning easiness can not be achieved at the same time is solved.

The invention discloses a super-high thermal conductivity and low thermal expansivity diamond composite material and a preparation method thereof, and belongs to the field of high-performance functional materials. The composite material consists of at least two phases of high thermal conductivity diamond grains and high thermal conductivity metals or alloy materials. The preparation method for the composite material comprises the following steps of: putting high thermal conductivity sheet or block metals or alloy materials on the high thermal conductivity diamond powder grains, loading, sealing, performing vacuum heat treatment, and performing melt infiltration sintering at certain high temperature under high pressure to make high thermal conductivity metals melted and infiltrated in the diamond grains so as to form the super-high thermal conductivity and low thermal expansivity composite material. The method makes high thermal conductivity nonmetal materials and high thermal conductivity metal materials firmly combined, so the composite material has the compactness of over 99 percent, and the thermal conductivity of 600 to 800W/(m.K); the thermal expansivity (less than 5ppm/K) matched with an electronic device can ensure that a workpiece works stably for a long time under the condition of high heating density; and the composite material has wide industrial application prospect.