99results about How to "Reduce the difficulty of structural design" patented technology

The invention provides a structure suitable for a thrust augmentation type turbofan engine and capable of realizing backward radar and infrared comprehensive stealth. The structure comprises a shielding support plate, an inner cone and a trailing edge blowing flame stabilizer, and is simple in structure, high in reliability, small in weight gain and small in aerodynamic loss, and the radar and infrared stealth performance can be remarkably improved only by virtue of the self structure.

The present invention discloses one kind of turbo-fan engine includes at least one low pressure turbine and one fan in the tail of the engine to constitute one unit with the low pressure turbine and its design process. The engine structure comprising low pressure turbine and post-set fan has facilitated design, less rotor dynamic risk, less part number, raised operation reliability, lowered maintenance cost, favor to reducing axial size and overall weight and improving the thrust-weight ratio of engine. The present invention makes it possible to change available turbojet engine into turbo-fan engine.

An antenna system disclosed by the invention comprises a first antenna, a second antenna and a switching assembly, wherein the central working frequency bands of the first antenna and the second antenna are different, and the switching assembly can be used for connecting a signal port of one of the first antenna and the second antenna into a main collection port and connecting a signal port of the other one antenna into a diversion port of a transceiver so as to achieve diversion sending and receiving. Moreover, the antenna system disclosed by the invention only comprises the two antennas, and the structural design and assembly difficulty of a communication terminal can be reduced. The invention also discloses the communication terminal containing the antenna system and a control method of the communication terminal.

Embodiments of the present application disclose a bluetooth headset charging box and a bluetooth headset. The charging box comprises a first contact terminal and a second contact terminal. The secondcontact terminal is a ground terminal. The first contact terminal is connected to a common terminal of a first control chip. The control terminal of the first control chip is connected with an enableterminal of a controller chip of the charging box, and is used for controlling the common terminal to be connected with the normal-close terminal or connected with the normal-open terminal through theenable terminal of the microcontroller of the charging box. The normal-close terminal is connected to a signal terminal of the controller chip of the charging box. The normal-open terminal is connected to an output terminal of a charging power supply. By implementing the technical solution provided by the present application, the contact terminals of the bluetooth headset charging box and the bluetooth headset can be simplified into two, thereby reducing the difficulty of structural design of the headset, improving the stability of the headset in the charging box, and making the appearance ofthe headset more compact.

The invention relates to the technical field of electronics, and discloses an array substrate, a display module and electronic equipment. The array substrate comprises a substrate body and first basic points which are in matrix arrangement on the substrate body; the first basic points comprise M display pixels, M infrared sensing units and N infrared light emitting units which are arranged together, wherein M and N are both positive integers, and M is greater than or equal to N; and the substrate body also has signal circuits of the display pixels, the infrared light emitting units and the infrared sensing units. According to the embodiments, by integrating the infrared light emitting units, the infrared sensing units and the display pixels of the display apparatus together, the structural design difficulty of the electronic equipment can be lowered and open pores can be reduced; in addition, the infrared sensing units can be used for fingerprint identification as well as iris identification, so that multifunction is realized and cost can be lowered; and meanwhile, the fingerprint identification function is realized in a display region, so that fingerprint identification flexibility is improved, and convenience in use of a user can be achieved.

The invention provides a high altitude wind power generation system based on an unmanned aerial vehicle platform. The high altitude wind power generation system based on the unmanned aerial vehicle platform comprises a power generator arranged on the ground and a large wing face, high rising force and high lift-drag ratio unmanned aerial vehicle which drives a power generator to generate power. According to the high altitude wind power generation system based on the unmanned aerial vehicle platform, the aircraft is directly utilized for collecting wind energy in the air, building of a huge tower platform is omitted, and the structural design difficulty and the manufacturing cost are greatly reduced; because the aircraft can descend to the ground, installing and maintaining can both be performed on the ground, and therefore the installing and maintaining difficulty can be greatly reduced; under the conditions of typhoon and other severe weather, the system can be taken back, and therefore losses to a draught fan caused when the draught fan is exposed in typhoon and other disaster weather can be avoided, the disaster resistant capacity of the system is improved, and the service life of the system is prolonged; and a high altitude wind turbine wind rotor is small in size or no wind rotor exists, harm to birds can also be reduced.

The invention relates to an electronic technology, and discloses an array base plate, a display module, electronic equipment, a fingerprint recognition method and a fingerprint recognition device. The array base plate comprises a base plate body and first basic points, wherein the first basic points are arranged on the base plate body in a matrix manner; the first basic points comprise display pixels and fingerprint pixels which are arranged together; and the base plate body also comprises signal lines with the display pixels and the fingerprint pixels. The embodiment of the invention also provides a display module comprising the array base plate, electronic equipment comprising the display module and a fingerprint recognition method applied to the electronic equipment. Through the embodiment, the fingerprint pixels and the display pixels are integrated, so that the fingerprint collection can be simultaneously realized in a display region of the display device; therefore the fingerprint recognition region can be conveniently increased; the use by a user is convenient; and the fingerprint recognition module does not need to be singly integrated into the electronic equipment in the later period, so that the structural design difficulty of the electronic equipment can be reduced.

This invention relates to an IC intelligent gas meter, which comprises the following parts: single machine separately connected with LCD unit and drive unit, EEPROM data memory unit, IC card, write interface circuit unit, signal sampling and magnetic protective circuit unit, single machine reset circuit unit, valve drive circuit unit, key display circuit unit, power leakage measurement circuit unit, power lower voltage measurement circuit unit, single machine on-line program circuit unit.

The invention discloses a multi-position automatic north-seeking method for a uniaxial laser north seeker. The multi-position automatic north-seeking method comprises the following steps: after receiving a north-seeking instruction, performing real-time error compensation on a gyroscope and an accelerometer; performing motor drive control according to a set target angle, sampling with an instrument after reaching the target angle; using a multi-position sampling result for resolving a attitude and an azimuth angle of the uniaxial laser north seeker; performing motor control and resolving repeatedly to realize the continuous multi-position automatic north-seeking of the north seeker. According to the invention, the automatic north-seeking method is high in reliability, low in hardware cost, reasonable and efficient in control process, can provide omnidirectional attitude and azimuth information for a carrier, and achieves an uninterrupted continuous north-seeking mode.

The invention discloses a taking-off and landing system without an undercarriage for a high-aspect-ratio solar unmanned aerial vehicle. When the solar unmanned aerial vehicle takes off, the solar unmanned aerial vehicle and an unmanned vehicle are locked in a butt joint mode through a sliding block clamping mechanism; when the unmanned vehicle automatically runs to a runway starting point, a loaded aircraft is accelerated along a runway; when the taking-off speed is reached, the sliding block clamping mechanism looses and releases the unmanned aerial vehicle, and the solar unmanned aerial vehicle is separated from the unmanned vehicle and automatically takes off and climbs; in the landing process of the solar unmanned aerial vehicle, the unmanned aerial vehicle glides down along a gliding line and is pulled up and drifts down when approaching the ground; and after the unmanned aerial vehicle enters the runway at a certain height, the unmanned vehicle quickly synchronously runs with an unmanned aerial vehicle formation through a guiding system and is kept under the unmanned aerial vehicle, and the unmanned vehicle is automatically in butt joint with the unmanned aerial vehicle when the unmanned aerial vehicle falls to an appropriate height. According to the taking-off and landing system without the undercarriage for the high-aspect-ratio solar unmanned aerial vehicle, the unmanned vehicle is adopted for assisting full-automatic taking-off and landing of the solar unmanned aerial vehicle, the undercarriage can be omitted, the cruising ability of the unmanned aerial vehicle can be improved, the structural design difficulty of the unmanned aerial vehicle is lowered, and the loading capacity is reinforced.

The invention belongs to the field of industrial robots, and particularly relates to an online robot collision detection method and system based on a momentum model. The method comprises the steps that firstly, structure parameters are set, and a dynamics model is established and converted into a robot state space equation; secondly, the angle measuring value and the torque measuring value of eachjoint of a robot at the time t are monitored, and t is larger than or equal to 0; thirdly, the angle measuring value and the joint torque measuring value, obtained in the second step, of each joint are substituted into the robot state space equation in the first step, and the external torque estimation value of each joint of the robot at the time t is obtained; and fourthly, the external torque estimation value of each joint and the corresponding external torque collision threshold value are compared, if the external torque estimation value is larger than or equal to the external torque collision threshold value, it is judged that collisions happen, and if the external torque estimation value is smaller than the external torque collision threshold value, it is judged that collisions do not happen. According to the online robot collision detection method and system based on the momentum model, the collision detecting operand and the calculating time consumption are reduced, and the collision detecting precision is improved.

The invention provides a bent loudspeaker module which comprises a bent single loudspeaker and a bent module outer shell used for correspondingly accommodating and fixing the single loudspeaker. The module outer shell comprises a module lower shell unit, a module middle shell unit and a module upper shell unit. Fixing ribs for fixing the single loudspeaker are arranged on the inner side of the edge of the module upper shell unit. The module middle shell unit is fixed on the edge of the module upper shell unit and used for accommodating the module upper shell unit. The module lower shell unit is buckled on the module middle shell unit. A groove is formed in the surface of the module upper shell unit, and the groove, the fixing ribs and the single loudspeaker form a space regarded as a front voice cavity. The module middle shell unit, the fixing ribs, the module lower shell unit and the single loudspeaker form a space regarded as a rear voice cavity. According to the bent loudspeaker module, the inner bent space of a portable electronic product with a bent screen can be fully utilized, the portable electronic product with the bent screen is compact in internal structure, design and manufacturing difficulty of the internal structure of the portable electronic product with the bent screen are reduced, and manufacturing cost of the portable electronic product with the bent screen is reduced.

The invention discloses a wireless communication system for monitoring the state of a hobbing cutter of a shield tunneling machine. The system comprises a terminal node, a main node, a conversion module and an upper computer. The invention further discloses a wireless communication method for monitoring the state of the hobbing cutter of the shield tunneling machine. The method comprises the following steps: receiving, collecting and processing a signal of a sensor, wherein the processed signal of the sensor is a digital signal, and wirelessly transmitting the digital signal to the main node;receiving, by the main node, the digital signal transmitted from the terminal node, and sending a control command and data transmission after the digital signal is processed; converting a RS485 bus data signal sent by the main node into a RS232 bus signal to perform data communication with the upper computer; and receiving, by the upper computer, data sent by the conversion module, and finally receiving and processing the data collected by the terminal node. By adoption of the wireless communication system and method, the wireless monitoring of the state of the hobbing cutter of the shield tunneling machine is achieved.

The invention provides an insulation coordinating method of a module unit of a modularized multi-level voltage source converter, and belongs to the field of alternating current/direct current conversion and power transmission and distribution of a voltage source converter. A voltage source converter (VSC) is adopted as the module unit; when the insulating method provided by the invention is adopted, all equipment of the module unit can meet the insulating requirement of the system and exert self characteristics of the equipment to the maximum extent simultaneously, the cost of the module unit and the structural design difficulty are reduced, and the running robustness of the VSC system is improved; and the electric field of the module unit is distributed uniformly, and the influence of primary main equipment on a secondary control and protection system is reduced. The insulating method comprises the steps of: selecting insulating equipment and metal equipment according to the parameters of the module unit in various working conditions, and performing the structural design and electric design on the module unit to ensure the module unit to operate safely, reliably and economically under the voltage stress.

The invention relates to the technical field of pet appliances, in particular to a pet feeder which comprises a base, a material storage barrel, a grain feeding component, a driving component, a feeding basin and a controller, the material storage barrel, the grain feeding component, the driving component and the feeding basin are sequentially connected on the base from top to bottom, a shell is connected on the base, a positioning column is arranged at the bottom of the base, a weight sensor is connected at the bottom of the material storage barrel and/or the feeding basin, the grain feeding component is positioned in the shell, the material storage barrel is detachably connected with the shell, and the feeding basin has a closing position and an opening position under the action of the driving component. According to the pet feeder, surplus grain in the material storage barrel and the feeding basin are weighed, feeding amount of each time is weighed, surplus grain is weighed, structure of the feeder is greatly simplified, structural design difficulty is reduced, and cost is greatly reduced.

The invention discloses a chip assembly and a mobile terminal. The chip assembly comprises a mainboard, a chip module, and a mainboard device; the chip module comprises a chip, a circuit board and a reinforced shield plate, the chip is arranged on the circuit board, the circuit board is arranged on the reinforced shield plate, the reinforced shield plate is in grounding connection with the mainboard, and a device installation space is formed between the reinforced shield plate and the mainboard; and the mainboard device is mounted in the device installation space. The reinforced shield plate can reinforce the chip and circuit board, and is in grounding connection with the mainboard to shield the mainboard device mounted on the mainboard, the mainboard does not need an extra shield cover, and conductive foam between the reinforced shield plate and the shield cover can be omitted. Thus, the stacked chip module and mainboard occupies small space, other devices in the mobile terminal are easier to arrange, and structural design of the mobile terminal is less difficult. The chip is grounded via the reinforced shield plate directly, and the grounding effect is better.

The invention discloses a novel all-dimensional twisting energy dissipation damping supporting seat. The novel all-dimensional twisting energy dissipation damping supporting seat includes a base and atop seat, the base is provided with at least three energy dissipation supporting columns, the energy dissipation supporting columns are provided with limiting parts which are connected with the base,and the energy dissipation supporting columns are connected with connecting parts which are rotatably provided with sliding blocks in a connecting mode; each of the sliding blocks is suitably matchedwith a corresponding sliding groove, the sliding grooves are connected at the lower surface of the top base, and the sliding blocks can slide in correspondence with corresponding sliding grooves; andthe sliding grooves are located at the same plane, at least two sliding grooves are not mutually parallel, and the energy dissipation supporting columns are mild steel members. According to the novelall-dimensional twisting energy dissipation damping supporting seat, the principle of a traditional supporting seat energy dissipation due to friction can be broken, deformation capability of materials can be fully played, earthquake kinetic energy amount can be effectively consumed, the blindness and the directionality in present designing and installing process can be avoided, the energy dissipation effect of the supporting seat is improved, and the entire anti-quake performance and safety of a structure can be improved.

The invention discloses a turning clutch and belongs to the technical field of hydraulic mechanical transmission. The turning clutch comprises a turbine shaft, a clutch body C1, a driving hub, a clutch body C2 and an inner gear ring, wherein the turbine shaft is in key connection with the driving hub, both the clutch body C1 and the clutch body C2 are installed on the driving hub in a sleeving mode, the clutch body C2 is sleeved with the clutch body C1, a sun wheel is arranged at the tail end of the clutch body C1, and the driving hub, the clutch body C1 and the sun wheel are all installed in the inner gear ring. According to the technical scheme, one clutch body is inlaid with the other clutch body, disengagement and engagement of the clutch bodies are controlled through different pressure oil cavities, and three speed ratios can be realized through the two clutch bodies; the two clutch bodies are combined in a completely embedded mode, integrity is high, structure is compact, the axial length of an auxiliary transmission is reduced remarkably, the structural design difficulty of the clutch is reduced, the arrangement structural design difficulty is reduced, and manufacturing cost is reduced.

The invention discloses a GNSS antenna system of a mobile terminal and the mobile terminal. The system comprises a GNSS master antenna, a GNSS diversity antenna, a first positioning processor and a second positioning processor, wherein the GNSS master antenna is used for generating a first positioning signal; the GNSS diversity antenna is used for generating a second positioning signal; the first positioning processor is used for processing a first positioning signal; the second positioning processor is used for processing the second positioning signal; and at least one of the GNSS master antenna and the GNSS diversity antenna is a microstrip antenna. According to the system, at least one of the GNSS master antenna and the GNSS diversity antenna is designed through the microstrip antenna, so that the structural design difficulty is lowered; and the trouble of installing an antenna bracket on a mainboard of the mobile terminal is avoided. The positioning signals are received through the GNSS master antenna and the GNSS diversity antenna, so that deterioration of received signals caused by spatial fading and the like can be effectively suppressed; and the signal-to-noise ratio of each signal is improved.

The invention discloses a microcomputer system product and a single-chip microcomputer reset circuit thereof. The single-chip microcomputer reset circuit comprises a power connector and a low-level reset signal generating circuit unit that is used to generate a low-level reset signal, at the moment when power supply voltage or charging voltage is introduced via the power connector, in order to control a single-chip microcomputer to reset; the low-level reset signal generating circuit unit comprises a first resistor, a second resistor, a third resistor, a first capacitor and a NPN triode; boththe first end of the first resistor and the first end of the first capacitor are connected with the power connector; the second end of the first capacitor is connected with the first end of the thirdresistor and a base of the NPN triode via the second resistor; all the second end of the first resistor, the second end of the third resistor and an emitter of the NPN triode are grounded; a collectorof the NPN triode is connected with a reset pin of a single-chip microcomputer. The difficulty in the structural design of the microcomputer system product is greatly reduced.