387results about How to "Reduce the difficulty of layout" patented technology

The invention discloses a distributed group wave shallow-layer slight shock positioning method based on phase measuring. A distributed epicenter test system is employed, and the positioning of a distributed group wave shallow-layer slight shock epicenter is finally realized through five steps, i.e., shock sensor laying, shock signal phase information extraction, phase information calibration, node cluster positioning and node group positioning. According to the invention, sub-region node cluster laying and large-range node group random laying modes are adopted, a particle swarm algorithm is utilized for performing self-adaptive positioning on phase information corresponding to various advantaged frequency components, and a major constituent analytical method is utilized for data fusion of a positioning result so that the method provided by the invention has the advantages of low sensor laying difficulty, wide application scope, high positioning precision and reliability and the like.

The invention provides a low-frequency ultra-wide band gap petal-shaped local resonance acoustic meta-material. The low-frequency ultra-wide band gap petal-shaped local resonance acoustic meta-material comprises a support in the shape of a Chinese character 'tian', elastic films, hemispheres and a plurality of pairs of petal-shaped structures. Square frames periodically extend in x and y directions to form the support in the shape of a Chinese character 'tian'. The elastic films are pasted to the upper parts of the square frames. Corresponding to the square frames, the hemispheres are periodically pasted on the upper parts of the elastic films. The petal-shaped structures are identical in geometrical size, symmetrically surround the peripheries of the hemispheres and are fixed on the elastic films. One square frame, the corresponding elastic film arranged on the upper part of the square frame, the hemisphere and the petal-shaped structures form one cell. The single layer structure made of one kind of cell is adopted for realizing an ultra-wide band gap, the composition or stacking of a plurality of kinds of cells is not needed, the arrangement difficulty of the structure is lowered, and the acoustic stability of the structure is improved; in addition, in a low frequency range, a relative band gap ([delta]f/fc) is as high as 84%, and the proportion of the band gap range in an effect frequency total range is substantially improved.

The invention provides a display panel, a manufacturing method thereof and a display device, relates to the technical field of display, and aims to solve the problem that the production cost of the display panel is increased due to the fact that initialization signal line graphs in the same row are not easy to connect together due to the fact that the layout space of the display panel is limited.An initialization signal line layer in the display panel comprises initialization signal line patterns arranged in all sub-pixel areas. The first auxiliary signal line layer comprises a plurality of first auxiliary signal line patterns in one-to-one correspondence with the plurality of sub-pixel regions, and the first auxiliary signal line patterns are coupled with the initialization signal line patterns in the corresponding sub-pixel regions; at least part of the first auxiliary signal line patterns extend in the first direction, and in the same row of sub-pixel areas, the first auxiliary signal line patterns corresponding to the sub-pixel areas are sequentially coupled. The display panel provided by the invention is used for displaying pictures.

The embodiment of the invention provides a camera module and a terminal. The camera module comprises a first camera module, a first flexible printed circuit connected to the first camera module, a second camera module and a second flexible printed circuit connected to the second camera module, and the first camera module and the second camera module are arranged side by side; at least one flexible printed circuit in the first flexible printed circuit and the second flexible printed circuit extends in the arrangement direction of the first camera module and the second camera module to achieve electric connection with a circuit board. Through the camera module and the terminal, by changing the routing method of the flexible printed circuits of the camera modules, the occupied space when the camera modules are arranged on the circuit board of the terminal can be reduced, and accordingly the layout difficulty is lowered.

The invention discloses engineering machinery, which comprises ground jacks and a fixed turret; the fixed turret comprises a turret base provided with a ground jack base, and a chassis connected with the engineering machinery; the turret base comprises a vertical cylinder and a rotary table connection board located over the vertical cylinder, an underframe is integrated with the turret base and located under the turret base; a lower end of the vertical cylinder of the turret base extends to a lower end surface of the underframe, a ground jack arm of the ground jack is a support jack, a cylinder barrel of the support jack is hinged with the ground jack base through a hinge shaft, and an axis of the hinge shaft is parallel to the chassis; one end of a power component is unfolded to be connected with the cylinder barrel while the other end of the power component is connected with the body of the engineering machinery. The engineering machinery provided by the invention has simpler structures of the ground jacks and the fixed turret, so that difficulty in the distribution of the ground jacks and limitation of site on unfolding the ground jacks are both reduced, and volume and weight of the fixed turret are also reduced.

The invention discloses a rocker arm wheel type ground unmanned platform. The rocker arm wheel type ground unmanned platform is characterized by comprising a vehicle body and six independent wheel systems, and the wheel systems are symmetrically arranged on the two sides of the vehicle body; in the wheel systems, hub motors are arranged in wheel drive units located on the outer side of the vehicle body so that the ground unmanned platform can be driven and walk, the wheel drive units are connected with the vehicle body through rocker arm transmission units; and the rocker arm transmission units are connected to the wheel drive units through rocker arms externally hung on the side portion of the vehicle body in a suspension manner, rocker arm drive motors are used for making the rocker arms rotate on the outer side of the vehicle body with the axes of rocker arm bearings as rotary axes, and different motion postures of the ground unmanned platform are obtained. The six independent wheel systems control the positions of the respective rocker arms and the rotation speeds and the torque of the respective wheels so that the ground unmanned platform can adapt to various complex terrains, and the requirement for all-terrain passage is met.

The invention relates to a method for automatically arranging a photovoltaic array in a complex terrain. The method comprises the steps of (1) calculating amount of solar radiation according to the current latitude so as to calculate an optimum tilt angle; (2) carrying out preliminary division on a given region; (3) carrying out occlusion calculation so as to calculate a shadow area, marking the calculated shadow area, and adjusting areas obtained in the step (2); (4) performing photovoltaic array grid division on the area to be arranged, and carrying out initial arrangement; (5) performing inverter grid division on the area to be arranged; (6) determining the arrangement positions of an inverter and a combiner box. In the steps (1), (2) and (3), the tilt angle and initial area to be arranged of the photovoltaic array are determined, and the arrangement of the photovoltaic array is well prepared; on this basis, the comprehensive optimal arrangement of the photovoltaic array is realized by means of the steps (4), (5) and (6).

The invention discloses an interlayer scheduling method, comprising the following steps: step S302, a wireless terminal measures the signal quality of a wireless contact of the first class and a wireless contact of the second class and reports the measured result to a communication treatment and control unit at a network side; step S304, according to the measured result, the communication treatment and control unit at the network side determines that whether the wireless terminal uses the wireless contact of the first class or the wireless contact of the second class. A double-layer wireless access system is also disclosed. The system which comprises the communication treatment and control unit is used for dynamically distributing a business channel of the wireless contact of the first class and a business channel of the wireless contact of the second class to the wireless terminal according to the measured result of the wireless terminal obtained from the measurement on the channel quality of the wireless contact of the first class and the wireless contact of the second class. The interlayer scheduling method achieves the optimized use of macro-cell wireless access resources and lowers requirements on covering quality and layout difficulty for micro-cell wireless access points.

The invention discloses a driving system of a wheel-drive type hydrostatic transmission hybrid vehicle, relates to the field of vehicle transmission, and aims to solve the problems that the driving torque of a driving wheel cannot be allocated reasonably and the structural layout is not flexible because the hydrostatic transmission hybrid vehicle uses an axle structure. A high-pressure hydraulic accumulator is connected with oil inlets of a constant-pressure variable pump and wheel hydraulic pumps/motors through an electromagnetic switching valve; the oil outlet of a fixed delivery pump is connected with oil inlets of wheel hydraulic pump/motor variable devices; a low-pressure hydraulic accumulator is connected with the oil outlets of the constant-pressure variable pump, the fixed delivery pump, the wheel hydraulic pumps/motors and wheel hydraulic pump/motor variable devices; the wheel hydraulic pump/motor variable devices control the wobble plates of the wheel hydraulic pumps/motors;and the wheel hydraulic pumps/motors are connected with input shafts of wheel reducers; a central controller controls power elements, the wheel hydraulic pump/motor variable devices, the electromagnetic switching valve, a wheel clutch, and a friction braking controller group which controls a friction brake. The maximum discharge capacity of the rear wheel hydraulic pump/motor is greater than thatat the front wheel hydraulic pump/motor; the reduction ratio of the rear wheel reducer is greater than that of the front wheel reducer. The driving system has the advantages of simplifying transmission, facilitating flexible layout, and being suitable for various vehicles.

The invention belongs to the technical field of automotive suspension and relates to an air spring capable of adjusting the height and rigidity independently and control methods thereof.By means of the air spring capable of adjusting the height and rigidity independently and the control methods thereof, the problems that in the prior art, independent and dynamic adjustment of the height of a vehicle body of a passenger vehicle is difficult to achieve, and effective control cannot be conducted are solved.The air spring comprises a double-cavity air spring body, an air supplying and pressure adjusting device and an air spring controller; the double-cavity air spring body is arranged on a damper of an original vehicle in a sleeving mode and connected with the air supplying and pressure adjusting device through a flexible air-pressure pipe; the air supplying and pressure adjusting device is fixedly mounted in a trunk of the vehicle and connected with all sensors in the air supplying and pressure adjusting device and the signal end of an actuator through a bus; the static control method of the air spring capable of adjusting the height and rigidity independently comprises four working modes, including vehicle starting, static variable height control, static variable rigidity control and vehicle loading and unloading; the dynamic control method of the air spring comprises two working modes, including in-traveling variable height control and in-traveling variable rigidity control.

The invention provides a terminal management and control method and device. The method comprises the following steps that: a pseudo base station disguises as a public network base station, and starts radio-frequency work; the pseudo base station makes all mobile terminals under radio-frequency coverage reside on a basic working frequency point, wherein the mobile terminals include authorized terminals and unauthorized terminals; the pseudo base station selects a non-public-network frequency point to serve as a management and control working frequency point, makes the authorized mobile terminals reside on the basic frequency point, and redirects the unauthorized mobile terminals to the management and control working frequency point; and the pseudo base station stops working of the basic working frequency point, and makes a pseudo terminal access to a public network. Through adoption of the terminal management and control method and device, the authorized mobile terminals directly access to the public network, and the pseudo terminal is not needed to ensure authorized terminal communications, thereby greatly lowering the layout difficulty. Meanwhile, equipment cost and size are saved, and equipment usability is enhanced.

The invention discloses a device and method for eliminating local oscillator leakage and relates to the technical field of mobile communication. The device comprises a coupler for carrying out local oscillator leakage signal extraction processing on an up-conversion signal or a down-conversion signal output by a frequency mixer to obtain a local oscillator leakage signal; an amplitude detection and adjustment module used for carrying out amplitude adjustment on the local oscillator signal according to the amplitude of the local oscillator leakage signal to obtain a local oscillator leakage amplitude offset signal equal in amplitude with the local oscillator leakage signal; and a phase detection and adjustment module used for carrying out phase adjustment on the local oscillator leakage amplitude offset signal according to the phase of the local oscillator leakage signal to obtain a local oscillator leakage offset signal equal in amplitude but opposite in phase with the local oscillatorleakage signal.

The invention belongs to the technical field of new energy vehicles, and particularly relates to a pure electric vehicle high-voltage interlocking control method. The pure electric vehicle high-voltage interlocking control method specifically comprises the following steps that vehicle high-voltage interlocking is divided into all independent systems, the high-voltage interlocking integrity insideall the systems is detected by all the systems, then high-voltage interlocking signals are fed back to a VCU through a CAN bus, and the VCU conducts judgment processing after conducting unified summarizing. The pure electric vehicle high-voltage interlocking control method has the beneficial effects that through the mode that high-voltage interlocking detection is divided into all the systems, thearrangement cost and difficulty of vehicle wiring harnesses are reduced, the transmission efficiency is also improved through the mode of CAN bus transmission, all the working conditions such as charging, travelling and motionlessness are considered overall, different control strategies are put forward in a targeted mode, and the traffic safety can be ensured more effectively.

The invention provides a drift and fill type open stope subsequent backfilling mining method. The mining method comprises the following steps that 1, a mining area is arranged to be of multiple mining layers (1), and each mining layer is provided with multiple mining roadways (2); 2, after mining is finished in one part of the mining area inside each mining roadway (2), filling is carried out on the part of the mining area, then mining is finished in the other part of the mining area inside the corresponding mining roadway (2), and then filling is carried out; 3, before mining is finished in one part of the mining area of each mining roadway (2), top plates (5) are arranged on the top (3) and the side face (4) of the corresponding mining roadway (2). By the adoption of the mining method, the ore body inside each mining roadway can be supported and fixed, the mining roof-contact arrangement difficulty is lowered, mining can be carried out in each mining roadway conveniently, the mining efficiency is improved, and the mining safety is improved.

The invention discloses an automobile EBS system based on a braking main valve. The automobile EBS system comprises an EBS electronic control unit, the braking main valve, a front shaft braking air chamber, a rear shaft braking air chamber, a first electromagnetic valve assembly, a second electromagnetic valve assembly, a first proportional relay valve, a second proportional relay valve, an electromagnetic valve, a wheel speed detection device and a pressure sensor assembly. The braking main valve is provided with a first loop air outlet and a second loop air outlet. The front shaft braking air chamber is sequentially connected with the first electromagnetic valve assembly, the first proportional relay valve, the electromagnetic valve, the pressure sensor and the second loop air outlet through a control pipeline. The rear shaft braking air chamber is sequentially connected with the second electromagnetic valve assembly, the second proportional relay valve and the first loop air outlet through a control pipeline. The EBS electronic control unit is electrically connected with the braking main valve, the first electromagnetic valve assembly, the second electromagnetic valve assembly, the first proportional relay valve, a second proportional relay valve, the electromagnetic valve, the wheel speed detection device and the pressure sensor assembly. The automobile EBS system is low in cost and enables the arrangement difficulty of a whole automobile to be reduced.

The invention relates to an underflow type stair stilling pool energy consumption system. The underflow type stair stilling pool energy consumption system comprises multi-level stilling pools which are arranged at different elevations of a lateral mountain of a reservoir dam body in a stair mode, an upstream diversion canal guiding out water in a reservoir, spillways which are corresponding to the stilling pools and shore diversion canals which are used for diverting water in the stilling pool at the lowest elevation to a downstream river channel; downstream ends of the stilling pools are arranged on the same side; side walls at the downstream ends of the stilling pools are provided with overflow weirs. The underflow type stair stilling pool energy consumption system is applicable to narrow river valleys and small flow high water head water conservancy projects with downstream river channels changed from narrow to wide to avoid the stilling pools from being damaged, guarantee the downstream river channel safety and improve the energy consumption rate.

The invention discloses a glue coating crystal solidifying method and a glue coating crystal solidifying system. The method comprises the following steps that A, crystal grains on a wafer disc are picked through a crystal solidifying arm; B, the bottoms of the picked crystal grains are immersed into a glue disc to be coated with glue water to be subjected to gluing treatment; C, the crystal grains subjected to the gluing treatment are bonded and welded on positions requiring crystal solidification on the carrier. One machine and control structure is adopted for crystal picking, and in addition, the glue taking is realized through wafers per se, so adverse phenomena that in the traditional mode, the blind points exist in bonding positions of the crystal grains and the glue points, the bonding surface distribution is nonuniform, the deviation of the crystal grains and the glue drip reset points is greater, the glue form is not full, the absorption firmness is poor, and the like can be avoided. The crystal solidifying method can be realized through adopting the independent system, the problem of collision when two independent mechanisms are used for production in the same station can be completely avoided, the mechanical structure is simplified, the control difficulty is reduced, and meanwhile, the product precision is also improved.

The embodiment of the invention discloses an interconnected system of a zoom out radio frequency unit and a method, comprising a base band unit and at least two zoom out radio frequency units, wherein at least one zoom out radio frequency unit is connected with the base band unit; the two zoom out radio frequency units are used for receiving the antenna signal of the master set and the antenna signal of the diversity and transmitting to the base band unit after direct medium frequency process; the antenna signal of the master set and the antenna signal of the diversity received by at least a zoom out radio frequency unit include the carrier loaded on the other zoom out radio frequency unit; a base unit is used for processing the antenna signal of the master set and the antenna signal of the diversity after the intermediate frequency processing transmitted by the zoom out radio frequency unit. According to the invention, the simple interconnection of the different zoom out radio frequency units is realized.

The invention discloses an engine condition monitoring method based on vibration and neural network technology and belongs to the engine fault monitoring method field. The method includes the following steps of: extracting the vibration characteristic parameters of an engine and performing engine state analysis by using the neural network technology. Measuring point near a cylinder head cover, a cylinder block and a crankcase side wall are selected as the vibration monitoring experimental test points of the engine, and therefore, the arrangement difficulty of sensors can be decreased. The stepof performing the engine state analysis by using the neural network technology includes the following steps that: 1) signals in a fault-free state and a fault state under a specific operating condition are obtained, fault symptom data are extracted and normalized, and the normalized fault symptom data are adopted as the input of a BP neural network; 2) a BP neural network system is established, the characteristic parameters of known fault states are adopted as training samples to train the network, so that the network can achieve required diagnosis accuracy; and 3) the fault characteristic parameters of an unknown state are inputted into the trained neural network for testing the unknown state, and the output of the under the unknown state is obtained, and post-processing is carried out,a result is compared with failure modes for training the network, so that a diagnosis result, namely, a fault type, can be obtained.