20results about How to "Stable reception" patented technology

The invention discloses a land-based data automatic receiving and preprocessing management system and method, and relates to the technical field of ocean observation data processing, and the system comprises a communication service subsystem, a data preprocessing subsystem, an intelligent perception linkage subsystem, and a data management subsystem. And full-process automatic processing of underwater acoustic real-time communication subsurface buoy observation data is realized through modular integration. Automatic receiving, safe storage and efficient preprocessing of deep sea power and biogeochemical element data are achieved, reliable data support is provided for marine scientific research and environment monitoring, and the long-term observation requirement of a 6000-meter water depth subsurface buoy system is met.

The utility model discloses a static leveling instrument cable-stayed bridge monitoring device based on Beidou positioning, and relates to the technical field of monitoring. The static leveling instrument comprises a static leveling instrument, the bottom of the static leveling instrument is fixedly connected with a support, the bottom of the support is rotationally connected with a supporting rod, the front side of the support is fixedly connected with a transverse rod through a connecting piece, and the front side of the support is provided with a camera. By arranging the static level gauge, the support, the supporting rod, the rotating block, the fixing ring, the transverse rod and the signal transceiver, the supporting rod and the transverse rod form an extending support through the rotating block and the fixing ring, the signal transceiver is erected to an unshielded area on the outer side of a pier, it is ensured that Beidou satellite signals are stably received, and the static level gauge provides local settlement data; the method is integrated with the absolute coordinate data of Beidou positioning and the deformation data of the cross bar, compensates the limitation of a single sensor through an algorithm, improves the precision of settlement monitoring in a complex environment, and guarantees the long-term monitoring reliability.

The utility model relates to the technical field of operation machinery, and discloses a remote control antenna assembly and operation machinery, the operation machinery comprises a vehicle body and an arm support arranged on the vehicle body, the remote control antenna assembly comprises an arm support remote control antenna and a receiver arranged on the vehicle body, the arm support remote control antenna comprises an antenna radiator, a detection module and a transmit-receive front end module, the receiver and the arm support remote control antenna are connected through a cable, the arm support remote control antenna is installed on an arm support, the antenna radiator is used for receiving and radiating radio frequency signals, the signal processing part is electrically connected with the antenna radiator and the receiver, and the signal processing part is used for detecting and processing the radio frequency signals transmitted by the antenna radiator. And the receiver is used for receiving the processed signal and carrying out signal conversion so as to realize information interaction. According to the boom remote control antenna, the boom remote control antenna is arranged on the boom, the antenna radiator can be effectively prevented from being shielded, signals can be received more stably, and the remote communication requirement of a remote controller transmitter is met.

This utility model discloses a WLAN antenna structure and a microcomputer, relating to the field of antenna technology. The WLAN antenna structure includes an antenna unit, which includes a dielectric substrate, an antenna ground plane, and radiating stubs. The radiating stubs are connected to the antenna ground plane, and the radiating stubs and the antenna ground plane are located on the same side of the dielectric substrate. The antenna unit is disposed in the microcomputer with the motherboard spaced apart and isolated from each other, and is connected by a feed line.

The utility model relates to communication equipment technical field discloses a sensitive tunnel communication receiver, including communication receiver body and protection shell, the protection shell inside is provided with a plurality of groups of wire arrangement mechanism, and wire arrangement mechanism includes wire arrangement seat and limit seat, wire arrangement seat fixedly arranged on the inboard of protection shell side, the limit seat slidingly arranged in the inboard of protection shell, wire arrangement seat and limit seat symmetrical arrangement, wire arrangement seat one side is provided with first line groove, the limit seat one side is provided with second line groove, first line groove and second line groove same specification. The utility model discloses the wire arrangement mechanism of setting is arranged to the arrangement of power cable, makes power cable neat, prevents the power cable of different voltage grades or purposes and cross winding together, avoids the interference of power cable to communication line because of electromagnetic coupling, is favorable to ensuring communication sensitive, guarantees that each area of tunnel can stably receive communication content.

The invention discloses a miniaturized ultra wide band antenna, a UWB positioning terminal and a positioning method thereof. The antenna comprises a dielectric substrate, a radiation unit, a grounding plate and an excitation source, wherein the radiation unit, the grounding plate and the excitation source are stacked on the same outer surface of the dielectric substrate; the grounding plate and the radiation unit are arranged at intervals; the excitation source is arranged between the radiation unit and the grounding plate, and is electrically connected with the radiation unit and the grounding plate. The grounding plate and the radiation unit form a radiation loop, a first ultra-wideband pulse electric signal generated by the excitation source is converted into a first electromagnetic pulse signal, and the first electromagnetic pulse signal is emitted to the space; and a second electromagnetic pulse signal reflected by the positioning target in the space is converted into a second UWB pulse electric signal and the second UWB pulse electric signal is transmitted to the excitation source, so that the UWB positioning terminal obtains the positioning information. The antenna is compact in structure and low in cost, the optimal balance among the size, the cost and the regulation compliance is ensured, and the UWB terminal equipment is promoted to develop in a more compact, more economical and more compliant direction.

The utility model relates to vehicle positioning equipment technical field discloses a kind of tamper-resistant anti-interference vehicle positioning terminal for environmental sanitation vehicle, including installation box and the vehicle positioning terminal main body installed in the inside of installation box, the top of installation box is equipped with box cover, the inside fixed mounting of installation box is equipped with the limiting mechanism that can limit vehicle positioning terminal main body, the side of installation box is equipped with the filter electrically connected with vehicle positioning terminal main body, the inside fixed mounting of installation box is equipped with the anti-tamper lock structure that must be unlocked using special key, the utility model cooperates by special-shaped slot and special-shaped plug bar, so that ordinary general tool cannot be operated completely, greatly improve the difficulty and cost of unauthorized disassembly. Meanwhile, the design of lock hole protective cover further prevents dust, rainwater from invading lock hole and being damaged by using technical means through lock hole, thereby effectively eliminating terminal failure caused by human disassembly.

This application discloses an artificial intelligence-based smart community security early warning device, relating to the field of security early warning devices. It includes a base, mounting rod, early warning component, adjustment assembly, and rotation assembly. Through the arrangement of a worm gear, worm wheel, transmission shaft, and bevel gear, three threaded rods are driven to rotate synchronously. These threaded rods then move a threaded sleeve, which in turn moves a moving frame via a U-shaped plate, causing the rotating rod to rotate. This allows the height of the early warning component to be adjusted via a support base, facilitating its bypassing of obstacles and ensuring normal operation. By holding two moving rings, a limiting cylinder is moved to compress a spring, causing the limiting cylinder to separate from the insert, thus unlocking the insert. This allows the early warning component to rotate around the mounting rod via the mounting block and insert, adjusting its angle and ensuring alignment with adjacent components, thereby achieving stable signal transmission and reception.

The utility model discloses a kind of support frame of knitted cloth roll, it includes rack and support position set on rack, support position side is provided with receiving mechanism, rack includes support rod, support position includes the transverse support rod and longitudinal support rod being connected with each other, transverse support rod, longitudinal support rod is fixedly connected with support rod respectively, receiving mechanism is plate-like, receiving mechanism is fixedly connected with support position, receiving mechanism includes receiving plate, receiving plate is fixedly connected with transverse support rod, receiving plate is provided with receiving buffer groove, the receiving plate of the application is improved and transverse support rod horizontal fixed connection, structure is neat and facilitate with AGV dolly etc. Automated conveying equipment is used, production line link efficiency is improved, receiving plate and output plate are respectively provided with receiving buffer groove and output buffer groove, not only when cloth roll can effectively reduce impact, reduce noise when going in and out, more can guide and limit to roll shaft, avoid the scratch or deformation of cloth roll surface due to collision.

The invention relates to the technical field of air conditioner compressor accessory powder metallurgy compression molding machining, in particular to an air conditioner compressor accessory compression molding process which comprises the following steps of a, powder selection and pretreatment, b, material mixing, c, compression molding and d, material receiving. In the material receiving step, a buffering module capable of conducting buffering protection on the green bodies is arranged, the buffering module is used for buffering the green bodies in the discharging process, it is guaranteed that the green bodies are not collided when being obliquely conveyed through a conveying channel, and then the green bodies are prevented from being damaged in the material receiving process of die-casting forming; and the forming stability of green bodies and the processing efficiency of received materials are improved.

This invention relates to the field of tarpaulin splicing technology, specifically to a tarpaulin coating post-splicing positioning and connection device, comprising a support structure, two axially parallel material rollers mounted above the support structure, and an adjusting frame assembly between the two material rollers for adjusting their axial displacement. The adjusting frame assembly has a positioning clamping structure for positioning and clamping the material rollers. The support structure has a support wheel assembly for rolling support of the adjusting frame assembly. The adjusting frame assembly has a side detection assembly for positioning and detecting the side of the tarpaulin. The axial distance between the two material rollers can be adjusted through the adjusting frame assembly, thereby adapting to different splicing width requirements of the tarpaulin. The fifth electric telescopic rod of the hot pressing assembly can drive the wheel platform to move, realizing the adjustment of the distance between the fixed electrode plate and the moving electrode wheel, which can adapt to the high-frequency hot pressing requirements of tarpaulins with different coating thicknesses, greatly improving the applicability of the equipment.

The utility model discloses a continuous feeding device for a seamless tube, and relates to the technical field of seamless tube machining. A continuous feeding device for seamless pipes comprises a support, a cross beam frame, limiting pieces and a transferring mechanism, the cross beam frame is fixed to the top of the support and forms a portal frame structure with the support, the limiting pieces are installed at the two ends of the top of the portal frame structure, and in the seamless pipe feeding process, the limiting pieces limit the conveying positions of the seamless pipes; and a poking part is arranged between the two limiting parts. Through the arrangement of the limiting piece, the transferring mechanism and the like, seamless pipes with different diameters can be fed, the feeding continuity is good, the seamless pipes can be stably received and transferred through the cooperation of the linear sliding table and the receiving frame in the transferring mechanism, the linear sliding table can accurately control the position of the receiving frame, and therefore the seamless pipes can be stably received and transferred. And meanwhile, the seamless tube can be transferred to a required production line through numerical control operation, so that the seamless tube can be transferred to the required production line.

The invention discloses a device and a method for detecting interface debonding of a hydraulic concrete structure repaired by FRP, and relates to the field of intelligent operation and maintenance of hydraulic engineering, the device comprises a probe and a host, the probe integrates acoustic detection and piezoelectric ceramic implantation functions, and can strike over the FRP surface and rapidly and preliminarily screen a debonding area through sound signal abnormity, and the probe is used for detecting the interface debonding of the hydraulic concrete structure repaired by the FRP. Precisely implanting a piezoelectric ceramic sensor and a matched curing agent into the debonding part by using the same probe to form a long-term monitoring point; by means of the method, the integrated operation process of rapid initial detection, fixed-point implantation and key detection is achieved. According to the invention, reliable implantation and stable signal acquisition of piezoelectric ceramics are realized, the problem of disjunction between detection of a traditional method and long-term monitoring and later detection is solved, and the device has the advantages of high integration level, capability of long-term fixed-point tracking and high applicability.

This utility model discloses an intelligent measuring trolley, relating to the field of track measurement technology, comprising: an equipment mounting plate; a protective housing fixed to the equipment mounting plate and configured as a protective structure for the measuring trolley; a battery box fixed to the equipment mounting plate inside the protective housing, the battery box being configured as a hollow structure with openings at both ends; a pull-out box slidably disposed in the battery box; a battery body stored in the pull-out box; an operation port opened on the protective housing and corresponding to one side opening of the battery box; and a pull-out assembly configured for pulling out the pull-out box. Compared with the existing methods of charging the battery of the measuring trolley, this utility model effectively improves the power replenishment efficiency of the measuring trolley, thereby ensuring the measurement efficiency of track measurement.

This invention discloses an underground cavity exploration and detection device and method, belonging to the field of underground cavity detection technology. The device includes a vehicle body equipped with a seismic hammer, lateral and longitudinal detection components, a support component with a geophone, and a control module. The support component is telescopically adjustable, and the geophone is pressed against the ground by a spring. The method includes road surface clearing, vehicle positioning and automatic leveling calibration, seismic hammer impact to generate seismic waves, geophone receiving the seismic waves and converting them into electrical signals, control module processing data, equipment retrieval, and multi-point repeated detection. This invention achieves automatic leveling and adjustment, improving detection accuracy; ensures stable reception of seismic wave signals, reducing attenuation interference; and automated operation reduces manpower and errors, meeting the needs of large-area rapid exploration, and is suitable for hazard investigation in urban roads and other areas.

This utility model discloses a laser receiver anti-interference device, relating to the field of laser receiver technology. It includes a fixed rod, a laser receiver, a light shield, a driving device, and an adjusting cover. The laser receiver is sleeved and connected to the fixed rod, and the light shield is sleeved and connected to the outer wall of the laser receiver. The light shield has a first light-transmitting hole. The adjusting cover is sleeved over the first light-transmitting hole of the light shield and has a second light-transmitting hole. The driving device is fixed to the light shield and is drivenly connected to the adjusting cover. The second light-transmitting hole is smaller than the first light-transmitting hole. The driving device drives the second light-transmitting hole on the adjusting cover to move across the first light-transmitting hole of the light shield. The light shield covers the laser receiver, and the second light-transmitting hole of the adjusting cover adjusts up and down at the first light-transmitting hole of the light shield, following the movement of the laser emitted by the laser emitter. This avoids interference from environmental factors on the laser receiver, enabling the laser receiver to receive signals stably and improving construction efficiency and quality.

The utility model discloses a battery box structure and battery package, battery box structure includes: box, protection cover and antenna board, and the box is equipped with assembly opening, protection cover is equipped with the rim buckle connection of assembly opening with the box, and the cover encapsulation assembly opening, and the material of protection cover is plastic, and the antenna board is connected with protection cover. First, protection cover adopts plastic material, avoids the shielding and interference of metal to antenna board signal, and has promoted the signal quality and communication stability of system. Secondly, protection cover buckle connection with the box makes the sealing property of assembly opening improve greatly, prevents dust and water vapor and other external factors from entering the box effectively, thereby has strengthened the security and service life of battery box internal element. In addition, the buckle type connection mode is convenient for the dismounting of protection cover and antenna board, provides great convenience for the subsequent maintenance, overhaul and antenna board replacement, and has improved the maintainability of product.

The utility model belongs to the technical field of solar cell scribing, and particularly relates to laser scribing equipment which comprises an installation platform, a laser scribing device and a laser scribing device. The laser is arranged on the mounting platform and is used for emitting laser; the light splitting module is arranged on the mounting platform and is used for receiving the laser, splitting the laser into a plurality of sub-lasers and emitting the sub-lasers towards a z axis; the reflection module is arranged on the mounting frame and is used for changing the emission direction of each sub-laser so as to emit the sub-laser towards the y axis; a scribing module; according to the laser scribing equipment, the light splitting module, the reflecting module and the scribing module are separately arranged, when the laser scribing equipment works, only the scribing module needs to be driven to move along the y axis and the z axis for scribing, the light splitting module and the reflecting module do not move in the process, and therefore the load of a driver is reduced; and meanwhile, a reflecting unit is arranged in the scribing module, so that the scribing module can stably receive laser when moving along the y axis and the z axis.

The application relates to the field of circuit control, and provides an alternating-current power carrier two-wire system LED dimming and color adjusting driving circuit and a driving method. The circuit comprises an alternating-current dimmer and an LED circuit, and the alternating-current dimmer outputs a dimming signal to control the LED circuit. The alternating-current dimmer comprises a zero-crossing synchronization acquisition loop and a power supply loop. The input end of the zero-crossing synchronization acquisition loop is connected with an AC power supply, and the output end of the power supply loop is connected with the LED circuit. The zero-crossing synchronization acquisition loop is used for outputting a low level when the input AC voltage is far away from zero, and outputting a high level when the input AC voltage is close to zero. The power supply loop comprises a main switch loop and a discharge loop. The main switch loop is used for cutting off energy transmission when the AC voltage is close to zero, and the discharge loop is used for rapidly discharging the capacitor on the circuit. The application solves the defects of high cost and light flicker in the related art, and the scheme can realize light full-process non-flicker through zero-crossing point detection and active rapid discharge.

The application relates to the technical field of satellite communication, and discloses a satellite searching system and method of a ground terminal, the system comprising: a master device with a first antenna and a second antenna, the first antenna being used for communication with a slave device, and the second antenna being used for receiving a low-orbit satellite beacon signal; the slave device with a first antenna and a second antenna, the first antenna being used for communication with the master device, and the second antenna being used for receiving a satellite beacon signal; a synchronization module used for synchronizing the clocks of the master device and the slave device; and a master device calculation module used for calculating the position of a satellite in a master device coordinate system in combination with the position of the slave device. According to the application, the first antenna is used to realize the intercommunication between the master device and the slave device, the time stamp data of the slave device is used, the master device calculates the accurate position of the satellite according to the time difference and the position, and the positioning problem when ephemeris information is lost or cannot be updated in real time is solved.