6342results about How to "High working reliability" patented technology

The invention provides a connection and installation method for LED filaments. The connection and installation method is used for assembling wicks in filament type LED bulbs. As the difference from the prior art of welding the lead-out ends of the LED filaments to a guide wire of a glass core column through a spot welding method, the electrode lead-out ends of the LED filaments are connected through elastic metal thin wire spiral parts, and therefore the LED filaments are connected in series one by one in an end-to-end manner according to the polarity to form a multi-joint LED filament series-connection system which can be bent. Then, the metal thin wire spiral parts at the head lead-out end and the tail lead-out end of the filament series-connection system are clamped on and fixed to corresponding core column side rod guide wires, and the metal thin wire spiral parts between the adjacent filaments are placed on corresponding filament hooks on the core column one by one so that the filaments can be arranged in order. By means of the connection and installation method, the defects that in the prior art, due to spot welding, the production efficiency is low, the finished product rate is low, and filament stress is large are overcome, and the production efficiency of filament type LED bulbs can be easily improved and the finished product rate of the filament type LED bulbs can be easily increased.

The invention relates to an underground central pump room draining automatic monitoring system, which comprises a PLC control cabinet, a remote expanding module, a site data bus, a contact screen, an analog quantity and switching value input module, various monitoring probes, a travel switch, a level instrument and an executable section. A monitoring net adopts a form of combining a PROFIBUS DP site data bus and an industrial ethernet. A monitoring method for the system comprises: (1) monitoring the absorbing well water level; (2) monitoring the state for starting a high pressure switching cabinet by a water pump; (3) judging the valve levels of a gate valve, a ball valve of a water jet pumping device and a water distribution gate; (4) judging the valve levels of a vacuum pump ball valve; (5) measuring each equipment temperature measuring point; (6) measuring signals of a pressure sensor and a negative pressure sensor; (7) judging system faults; (8) automatically controlling the start-stop and operation numbers of the water pumps according to the absorbing well water level conditions; and (9) setting power supply peak avoiding time periods, and automatically selecting starting time and numbers of a pump. The system improves the system working reliability, reduces the equipment fault rate, and adopts a three-stage monitoring structure for a draining system.

The invention discloses a mixed type underwater navigation detector which comprises a bow compartment, a main chamber, an electronic control chamber and a peak tank which are coaxially and sequentially connected, wherein the bow compartment and the peak tank are communicated with an outside water area; the main chamber and the electronic control chamber are sealing chambers; two wings are symmetrically installed at a connection position of the main chamber and the electronic control chamber; a sonar height gauge and an acoustic transceiver are installed in the bow compartment; a non-contact electric energy and signal transmission assembly is sleeved outside the main chamber; a gesture adjustment system and a buoyancy adjustment system are installed in the main chamber; the buoyancy adjustment system is installed on the front portion of the main chamber; buoyancy is adjusted through movement of a piston; two sides of the piston are isolated and sealed through rolling membranes; electronic equipment for controlling an aircraft is installed in the electronic control chamber; and a propeller propelling system and a steering control system are fixed on the peak tank. The mixed type underwater navigation detector has characteristics of underwater gliders and autonomous underwater vehicles, and can be abutted with an underwater connection platform to conduct non-contact charging and data transmission, so that continuous operational capability and applied range of underwater aircrafts can be increased.

The invention provides an agile satellite task planning method, which comprises the following steps of: 1) obtaining a meta-task list of a planning cycle, wherein meta-tasks in the meta-task list are sequentially arranged according to the earliness of starting time, and setting a prospective step length; 2) sequentially selecting one meta-task in the meta-task list as a current task; and 3) making a prospective judgment to the current task by the prospective step length, if the current task comes into conflict with follow-up meta-tasks in the prospective step length, when the priority of the current meta-task is not lower than the priority of the follow-up meta-tasks, deleting the follow-up meta-tasks, and otherwise, deleting the current meta-task. By adopting the method, conflicts can be rapidly found and eliminated; and by optimizing a satellite task list accordingly, the normal operation of a satellite is ensured and the reliability and the service life of a satellite platform are improved.

The invention relates to a mobile robot path planning method and system based on an improved ant colony algorithm. The mobile robot path planning method comprises the following steps of 1 environment modeling, 2 initial pheromone distribution and 3 optimal path searching and optimal path outputting. According to the mobile robot path planning method and system based on the improved ant colony algorithm, improvement is conducted on a previous traditional ant colony algorithm in the initial pheromone distribution aspect, ants can guide optimization of the ants at the beginning, and the early convergence speed is obviously increased; meanwhile initial parameters are reasonably selected, for instance, selection of pheromone evaluation, a result does not run into a locally optimal solution or has difficulty in forming an optimal solution, reasonable improvement is conducted on a pheromone update mode, the situation of running into the locally optimal solution can be effectively avoided, and the working efficiency and working reliability of the robot can be improved.

The invention relates to the technical field of block chain, in particular to a data storage method and a system based on the block chain. The method comprises the following steps: a proxy node of a main chain detects whether the available storage capacity of the proxy node is larger than a preset storage threshold; if it is larger than, the agent node of the main chain records the block numbers of all blocks between the starting block and the terminating block to be transferred. The proxy node of the side chain sends all the blocks to the consensus node of the side chain; the agent node of the main chain broadcasts the block transfer information to the whole network after detecting all the blocks in the side chain to pass the consensus verification. Each node in the main chain deletes allthe blocks according to the block transfer information. As the node in the main chain can transfer and store part or all of the blocks in the side chain when the available storage capacity is insufficient, each node in the main chain has more available storage capacity, so that each node in the main chain can store the block data more reliably, and the work reliability of the main chain is improved.

The invention provides a touch sensor based on flexible voltage-sensing conductive rubber. The invention is characterized in that a sensing unit has a structure form that: a flexible circuit board is used as a motherboard, the disc-shaped flexible voltage-sensing conductive rubber is arranged on the flexible circuit board and is electrically connected with an electrode distributed on the flexible circuit board, a stress surface at the top part of the flexible voltage-sensing conductive rubber is covered by a force transmitting hemisphere; the flexible circuit board is in a four-electrode structure, wherein, a public electrode A is a center circle electrode which is positioned on the concentric position together with the disc-shaped flexible voltage-sensing conductive rubber, a signal electrode B, a signal electrode C, and a signal electrode D which are at an angle of 120 degrees between every two are fan-shaped electrodes that are evenly distributed on a same torus of the periphery of the public electrode A. The invention relates to the touch sensor which has the advantages of strong surface suitability, high reliability, simple signal collecting circuit, and convenient manufacture, and also can be used for the three dimensional force detection.

The invention discloses an oil sludge cleaning and processing system for an oil tank. The oil sludge cleaning and processing system comprises a cleaning system, an oil sludge processing system and an integrated control system, wherein the cleaning system comprises a cleaning robot, an electric hydraulic pump, a water pump, an inert gas storage tank and a screw pump; the cleaning robot comprises a machine body, a traveling unit, a cleaning unit, a robot cleaning control unit, a sensing and communication unit and a robot power supply unit; the oil sludge processing system comprises an oil sludge processing device, an oil sludge processing control system and an oil sludge processing power supply device; the oil sludge processing device comprises a stirring machine, an ultrasonic emulsion breaking device, a centrifuge and an ultrafiltration system, as well as an oil sludge storage pool, a sludge pool, a centrifugal liquid storage tank, a concentration tank and a filtrate pool; a funnel is arranged on the stirring machine; and the integrated control system comprises an integrated control computer and a communication circuit module. The oil sludge cleaning and processing system disclosed by the invention has the advantages of reasonable design and high degree of intelligentization, and can realize comprehensive cleaning of the oil tank, good safety, fast oil sludge processing speed and resource utilization of oil sludge, and further reduce environmental pollution and waste of resources.

The invention discloses a display panel and a display device. The display panel comprises a display panel body and at least one flexible circuit board. The display panel body comprises an array substrate and a colored film substrate arranged in opposite positions, wherein the array substrate is provided with several metal guide wires. The end portion of the display panel is provided with a binding part. The binding part comprises metal connecting wires which are arranged respectively for each metal guide wire and are electrically connected with the metal guide wires. At least one flexible circuit board is connected electrically with the binding part. Compared with the prior art, the display panel is beneficial to achieve the narrow frame design of the display device.

The invention provides a shift register unit, a shift register circuit, an array substrate and a display device and relates to the field of manufacturing of displays, wherein the shift register unit, the shift register circuit, the array substrate and the display device can be used for reducing the bias voltage action time of a noise transistor without affecting the circuit stability, thereby prolonging the service life of devices. A shift register comprises a capacitor, a first transistor, a second transistor, a third transistor, a fourth transistor, a fifth transistor, a sixth transistor and a denoising control module. The shift register unit, the shift register circuit, the array substrate and the display device are used for manufacturing the displays.

A portable IGBT (Insulated Gate Bipolar Transistor) of high reliability, compact size, and low cost includes a main circuit to which a control circuit and an auxiliary power supply circuit are connected. The main circuit includes, in sequence, an input rectifier filter circuit, an inverter circuit, a high-frequency primary transformer, and a secondary output rectifier circuit. The control circuit includes a PWM regulation circuit, an IGBT driving circuit, a current feedback circuit, and a current setup circuit. The inverter circuit includes a full-bridge hard switching structure, which has IGBTs constituting bridge arms that are sequentially conducted, so that their alternating conduction converts direct current into high frequency square wave alternating current, which flows through the high-frequency primary transformer and is then subjected to rectification to supply an output of low voltage direct current. Each IGBT is connected in parallel to resistor and capacitor, which constitute a peak voltage absorption circuitry.

The estimation method for time-frequency joint channel in TDS-OFDM space-frequency code comprises: 1) the transmission antennas of T1 and T2 executes space-frequency diversity code; 2) for some rule, alternative transmitting the TPS information after error correction coding carried on OFDM sub-carrier; 3) taking time-frequency joint channel estimation with time-domain PN sequence and TPS information; 4) space-frequency decoding to recovery transmission information. This invention changes little to original transmitter system, simple, fast and accurate, and supports soft-failure to improve reliability.

The invention provides a novel packing machine. A vertical mounting plate is arranged at the lower half part of the packing machine, a horizontal mounting plate is fixed at the upper part of the vertical mounting plate, a fixing frame is arranged at the upper half part of the vertical mounting plate and wraps the left part, right part and upper part of an article banding station, the mounting plates and the fixing frame are arranged on a rack of the packing machine, and a tape spool is arranged at the lower part of the packing machine; and a movement of the packing machine and a pre-sending belt device are arranged on the horizontal mounting plate, a retreating belt and tensioning belt device is arranged in the movement of the packing machine and comprises a retreating belt mechanism and a tensioning belt mechanism. According to the novel packing machine, all the functional devices are reasonable in configuration and convenient and simple in control, the packing quality can be improved, and the comprehensive improvement of the packing efficiency and the reliable work can be facilitated.

The invention provides an intelligent robot welding system. The intelligent robot welding system comprises a welding, assembling and measuring part, a welding line path self-adaptation control part, a welding technology parameter detecting part, a welding line forming self-adaptation control part, a welding molten pool monitoring part and an equipment state detecting part. The welding, assembling and measuring part is used for online detecting and analyzing welding and assembling parameters or information in the welding environment with high precision. The welding line path self-adaptation control part is used for adjusting the welding path in real time and correcting the deviation of the welding path. The welding technology parameter detecting part is used for detecting and recording welding parameters in the welding process. The welding line forming self-adaptation control part is used for adjusting various assembling parameters during welding in real time. The welding molten pool monitoring part is used for collecting and processing images in the welding area during welding and displaying, recording and storing the images in real time. The equipment state detecting part is used for detecting the running parameters of the whole robot welding system in real time.

The invention discloses a method for eliminating DC harmonic voltage for the grid-side converter of a double-fed wind power generator in the case of asymmetric power grid. The method adopts a phase-shift T/4 delay negative sequence fast separation method, which performs positive-negative sequence separation on the voltage and current of the three-phase power grid, wherein the positive-negative sequence separation method has simple calculation which only includes addition, subtraction, multiplication and division, fast response that the positive-negative sequence component can be worked out only in 5 m and small delay which facilitates the design of PI parameters. In order to obtain good control effect, the positive-negative double-dq current control with completely symmetric structure is adopted. Therefore, the positive-negative sequence current instructions are both DC components and the PI regulator can realize floating control.

The invention relates to a system for online monitoring faults of an electric power line. The system comprises a remote terminal device and a monitoring master station, wherein the remote terminal device comprises a fault indicator and a line fault data collector which are in communication connection by an RF (radio frequency) network, the monitoring master station comprises a handheld mobile terminal and a microprocessor control terminal, the line fault data collector communicates with the data receivers of the handheld mobile terminal and the microprocessor control terminal through a GSM/GPRS (global system for mobile/general packet radio service) communication module by a mobile communication network, and the upper computer of the microprocessor control terminal communicates with the handheld mobile terminal through a GSM/GPRS generating and receiving data module of the data receiver by the mobile communication network. According to the system, intelligent monitoring is realized; in the manners of on-site indication and remote fault alarm, the fault types and fault points are confirmed, the faults are located accurately and timely; as two terminals are adopted, the faults are alarmed timely, reasonable dispatch is realized, the fault elimination efficiency is improved, and the power distribution reliability is improved.

The invention discloses a steering control system and a steering control method of a nine-shaft automobile chassis. The system comprises a mechanical drive device, a power-assisted steering device, a hydraulic drive device and a steering control device which are used for driving wheels to steer, wherein the mechanical drive device and the power-assisted steering device drive wheels on first, second, third, fourth and fifth steering shafts to steer respectively; sixth, seventh, eighth and ninth steering shafts are provided with medium locking cylinders and steering cylinders respectively; extended ends of each medium locking cylinder and each steering cylinder are connected with a steering knuckle arm of a corresponding steering shaft to form an interlocking mechanism; and the steering control device connects or disconnects oil inlet and oil return paths of a corresponding medium locking cylinder and a corresponding steering cylinder according to a steering mode and drives wheels on a corresponding steering shaft to steer. The mechanical drive device and the hydraulic drive device drive wheels on different steering shafts to steer respectively, so that various steering modes are provided. On the basis, the invention also provides a hoist using the steering control system.

An automatic restart ¿C up device from power failure adds a delay circuit and a relay on hardware equipped with watchdog circuit. It is feature as triggering relay to act for cutting off power input end of microprocessor application device after certain amount of reset pulse is detected by delay circuit, restoring relay to be original state for reswitching on microprocessor application device after a period of time.