275 results about "Signal cell" patented technology

The invention provides a corrosion-resistant composite cable and a preparation method thereof, the corrosion-resistant composite cable comprises a signal unit, an optical cable unit and a protection unit, the signal unit and the optical cable unit are coated with the protection unit, the signal unit comprises a silver-plated copper conductor, an insulating layer, a shielding layer and a sheath layer, and the silver-plated copper conductor is coated with the insulating layer. The optical cable unit comprises an optical fiber, a buffer tube and a filler; the protection unit comprises an inner sheath, a tensile layer, an anti-corrosion layer and an outer sheath. The corrosion-resistant composite cable has good corrosion resistance, can effectively resist corrosion of various chemical substances, prolongs the service life of the cable, reduces the fault risk caused by corrosion, and improves the stability and reliability of power transmission or signal transmission; under severe environment conditions, such as high humidity, high salinity and high alkalinity, a normal working state can still be kept, continuous and stable support is provided for related equipment or systems, and normal operation of the equipment or systems is guaranteed.

The invention provides a personnel detection method and system applied to a fire scene, and the method comprises the steps: firstly obtaining a multi-source signal data set of the fire scene, enabling the multi-source signal data set to comprise communication signal units which are collected at different positions and are provided with time stamps, carrying out the signal feature extraction processing of the multi-source signal data set, and carrying out the detection of the multi-source signal data set; the method comprises the following steps: obtaining spatial distribution characteristics and time sequence change characteristics of a communication signal unit, then calling a pre-trained personnel positioning model to carry out joint positioning analysis on the spatial distribution characteristics and the time sequence change characteristics, and generating a potential personnel position candidate set corresponding to the communication signal unit; target position information of to-be-rescued personnel in the fire scene is determined according to the potential personnel position candidate set, finally, a rescue guide instruction containing position coordinates is generated based on the target position information, the rescue guide instruction is sent to a rescue terminal to trigger personnel search and rescue operation, and therefore indirect positioning is achieved through communication signals, and rescue efficiency is improved. Limitations of a traditional method are overcome, and rescue efficiency is improved.

The invention provides a multi-algorithm cooperative positioning method for a Beidou single-mode terminal of a railway locomotive, which belongs to the technical field of railway communication and positioning, and comprises the following steps: firstly, receiving a positioning signal flow which is sent by a Beidou satellite and contains a propagation path identifier, and carrying out shunt processing on a satellite signal unit; a direct signal is imported into a basic positioning algorithm module, a reflected signal is imported into an auxiliary positioning algorithm module, an initial positioning result and path correction information are obtained, then the initial positioning result and the path correction information are subjected to correlation verification, intermediate positioning data are generated, the intermediate positioning data are subjected to constraint adaptation based on railway line track feature information, and a constraint positioning result is obtained. Finally, the signal processing priority of the algorithm module is dynamically adjusted according to the constraint positioning result, final positioning information is generated and sent to a locomotive monitoring terminal, and therefore the accuracy and reliability of railway locomotive positioning can be effectively improved.

The invention discloses a thin film thickness measurement system, method and device and a computer readable storage medium, and relates to the technical field of thin film thickness measurement, and the system comprises a light source unit which is used for transmitting an initial light source signal; the light splitting unit is arranged on a transmitting path of the initial light source signal and is used for splitting the initial light source signal into a first light source signal and a second light source signal; the imaging objective lens is arranged on an emission path of the first light source signal, a to-be-measured film is placed at a measurement position, and the imaging objective lens is used for irradiating the first light source signal onto the to-be-measured film, forming a measurement signal and returning the measurement signal; the reference signal unit is arranged on a transmitting path of the second light source signal and is used for returning a reference signal under the action of the second light source signal; and the imaging spectrometer is arranged on the reflection path of the light splitting unit and is used for determining the thickness of the to-be-measured film based on the reference signal and the measurement signal returned by the light splitting unit, so that the measurement accuracy of the film thickness is improved.

A vehicle control system for operating a driving function for the automated longitudinal and / or lateral control of a motor vehicle at a traffic node. The system includes sensors that provide situational data, and a control unit. The control unit identifies a lane in which the vehicle is located, in an approach road to the node, based on the situational data. The control unit determines whether at least one signal generator of a signaling unit of the node is relevant to a driving maneuver of the vehicle at the node, based on the identified lane. The control unit operates the driving function at the node based on whether at least one signal generator is relevant to the driving maneuver of the vehicle at the node.

An in-memory computation device includes a word line activation circuit that receives an input signal indicative of input values and provides activation signals each as a function of the input value. The in-memory computation device further includes a memory array, a biasing circuit generating a bias voltage and a digital detector. The memory array has memory cells coupled to a bit line and each to a word line. Each memory cell stores a computational weight. In response to an activation signal, a cell current flows through each memory cell as a function of the bias voltage, the activation signal and the computational weight. A bit line current flows through the bit line as a function of a summation of the cell currents. The digital detector is coupled to the bit line, samples the bit line current and, in response, provides an output signal.

The embodiment of the invention provides a signal transmission method and related equipment, which can ensure that the optical powers of two paths of local oscillation light for performing coherent demodulation on signal light are in an equal or approximately equal state, and effectively reduce the complexity and time delay of an adjustment process. The method comprises the following steps: a signal unit receives signal light through a signal optical fiber; the polarization beam splitting rotator divides the local oscillation light into first local oscillation light and second local oscillation light; the first optical splitter splits the first local oscillation light to obtain third local oscillation light and first detection light, and the second optical splitter splits the second local oscillation light to obtain fourth local oscillation light and second detection light; the comparator indicates the first power adjusting unit to output fifth local oscillation light according to the third local oscillation light and also indicates the second power adjusting unit to output sixth local oscillation light according to the fourth local oscillation light according to the magnitude relationship between the optical power of the first detection light and the optical power of the second detection light; and the fifth local oscillator light and the sixth local oscillator light are used for performing coherent demodulation on the signal light.

Procedures, methods, architectures, apparatuses, systems, devices, and computer program products for low-power wake-up signal, LP-WUS, cell selection. A wireless transmit-receive unit, WTRU, may indicate information related to WTRU capability for cell selection procedure to a gNB. The WTRU may indicate its type of low-power wake-up receiver, LP-WUR, e.g., a first type of WTRU has no energy harvesting capability, a second type has energy harvesting but no energy storing capability, a third type has energy harvesting and energy storing capabilities. The WTRU may receive one or more cell configurations. The cell configurations may indicate a first cell type, where a cell transmits both energy harvesting sequence and low-power synchronization signal, LP-SS, and a second cell type that transmits only LP-SS. The WTRU may select, or prioritize for selection, cells based on the WTRU type, energy storage status, and cell type.

An image encoding and decoding method and apparatus are provided. The image decoding method includes obtaining a difference quantization parameter for a current coding unit from a bitstream, based on an area of a predefined difference quantization parameter signaling unit; obtaining a quantization parameter for the current coding unit by using a predicted quantization parameter for the current coding unit and the difference quantization parameter for the current coding unit; obtaining at least one inverse-quantized coefficient by performing inverse-quantization on at least one coefficient obtained based on residual information of the current coding unit included in the bitstream, based on the quantization parameter for the current coding unit; obtaining a residual block of the current coding unit, based on the inverse-quantized coefficient; and obtaining a reconstructed block of the current coding unit, based on the residual block of the current coding unit.

The invention relates to the technical field of radar monitoring, in particular to a pluvial area airport bird monitoring method and system based on a bird detection radar, and the method comprises the steps: collecting real-time and historical meteorological data and bird detection radar signal data through a data collection module, and determining the current rainfall intensity; the background noise analysis module sets a rainfall intensity threshold according to historical meteorological data, dynamically adjusts the size of a background window according to the current rainfall intensity, calculates the intensity weight and the distance weight of each signal unit, and generates accurate background noise estimation; the target detection module initializes primary and secondary thresholds according to background noise estimation, performs double screening on signal units in a background window, generates target signal units, and dynamically modifies the thresholds in real time by establishing a relation model between the rainfall intensity and the screening thresholds, so that the accuracy and robustness of target detection are improved, and the accuracy and robustness of target detection are improved. The problem that a traditional system is inaccurate in background noise estimation and poor in fixed threshold detection effect under different rain intensity conditions is effectively solved.

The invention relates to the technical field of vehicle window management, and discloses a vehicle window ripple anti-pinch management system capable of intelligently recognizing a bumpy road surface. The vehicle window ripple anti-pinch management system comprises a cabin body, a linear sliding rail, an elastic piece and a sliding block; linear sliding rails are symmetrically arranged on the two walls of the inner side of the cabin body, two sets of elastic pieces are arranged in a reserved gap between the linear sliding rails in an up-down mirror image mode, a sliding block is contained and restrained in the center area of the elastic pieces, and the two ends of the sliding block are connected with the linear sliding rails in a sliding coupling mode. The acquisition module is used for taking a central section of the linear slide rail as a coordinate reference and acquiring a displacement vector of the slide block relative to the coordinate reference; operation state data of the target vehicle are obtained; the running state data comprises a vehicle running speed, a vehicle acceleration, a vehicle running angle and a suspension system telescopic parameter; the filter unit is used for establishing a supplementary signal unit and obtaining an expected filter value based on output of the supplementary signal unit; and filtering the current parameter of the vehicle window motor based on the expected filter value to obtain a net parameter, and managing the running state of the vehicle window based on the net parameter.

The invention discloses a vehicle measurement data conversion processing method, system and device and a medium, mainly relates to the technical field of measurement data conversion, and is used for solving the problems that manual operation is needed and the working efficiency is low in the existing vehicle data processing process. Comprising the following steps: traversing and reading measurement data of each channel signal unit in a current sampling period according to the number of channel signal units in a channel group; importing the aligned data into a matlab working space, and updating a name into a character variable name at the same time; automatically adding a corresponding signal input module in the application software to be simulated, and setting associated data of each signal input module in the matlab working space; replacing the input interface module with a signal input module with the same name; and extracting the sampling time interval and the maximum time parameter of the time quantum in the matlab working space, and further adjusting the simulation step length and the simulation time parameter in the to-be-simulated application software to obtain the adjusted application software.

The application discloses a self-interference cancellation device in a full duplex system, which is an independently deployable hardware module connected between a radio frequency transceiver and an antenna, and comprises a switch matrix and a phase shift network unit, a control signal unit, an interface unit and a power supply unit. The switch matrix and the phase shift network unit comprise a radio frequency switch matrix and an inverter composed of a balun transformer; the control signal unit comprises a microcontroller. The microcontroller is configured to output a periodic control signal to synchronously control the radio frequency switch matrix to alternately switch the connection between the two antennas and the transmitting and receiving ports in the first half cycle and the second half cycle in a control period, and synchronously control the phase shift network to introduce a 180-degree fixed phase shift in the second half cycle. Through the above operation, the self-interference signal spectrum is moved away from the baseband, and then low-pass filtering is performed on the latter stage to realize endogenous elimination. The application does not need channel estimation, has simple hardware architecture, low cost and good compatibility, and is convenient for full duplex upgrading of existing equipment.

According to the station steel rail potential monitoring terminal disclosed by the utility model, through cooperative arrangement of the signal I / O unit, the data processing module and the server module, signals are collected from the steel rail through the signal I / O unit; the signals are subjected to scaling, filtering, common-mode interference removal and isolation processing, so that the accuracy and the stability of the signals are ensured; the data processing module carries out high-speed sampling on the processed signals and carries out data interaction with the server module through modes of 4G / CAT1, WIFI, 100M ETHERNET and the like, the average value, the maximum value and the minimum value of all sampling values are obtained, the sampling values are converted into physical values through the transformation ratio and the offset, data are uploaded to the server module through an MQTT protocol, high-frequency sampling is carried out on the steel rail potential signals, and the steel rail potential signals are sent to the server module. Proper data samples are provided for deep learning in the aspect of railway system management.

The invention relates to a feedback system (10) for an electric vehicle (12), comprising an electric motor (18) and a service brake (22). The electric motor has a brake unit (20). A control unit (24) is provided. The control unit (24) is connected to the electric motor (18) and the service brake (22) via a signal connection. The brake unit (20) brakes the electric vehicle (12) up to a first point in time. The service brake (22) brakes the electric vehicle (12) after the first point in time. A second point in time is present. The second point in time occurs at or after the first point in time. A third point in time occurs at or after the second point in time. At the third point in time, the electric vehicle (12) comes to a standstill. The invention is characterized in that a signal unit (26) is provided. The signal unit (26) is connected to the control unit (24) via a signal connection.The signaling unit (26) generates and displays a signal for the driver at the second time point.

The invention discloses a low-orbit large spacecraft aluminum alloy framework autonomous disintegration system and a control method. The low-orbit large spacecraft aluminum alloy framework autonomous disintegration system comprises an aluminum alloy framework, an activation signal unit and a liquid metal triggering unit. The activation signal unit is used for receiving an external signal and sending an activation signal to the liquid metal triggering unit; the liquid metal triggering unit comprises liquid metal, a storage bin for sealing the liquid metal and a protective gate; the protective gate is arranged between the liquid metal and the aluminum alloy framework so as to isolate the liquid metal from the aluminum alloy framework; the protection gate receives the activation signal and releases the liquid metal, so that the liquid metal makes contact with the aluminum alloy framework and diffuses and permeates into the aluminum alloy framework along the grain boundary of the aluminum alloy, the structural integrity is destroyed, the spacecraft is decomposed, the orbit is lowered under the influence of residual atmosphere and the like, and finally the spacecraft enters the atmosphere to be completely burnt out. Compared with the prior art, the device can be controllably disassembled, and space junk is avoided.

According to the automatic opening, closing and stopping system for the roller shutter door, a complete and clear control link is established among a roller shutter door motor, a roller shutter door controller, a PLC, a relay assembly, a limiting detection unit and a trigger signal unit, so that the opening, closing and stopping actions of the roller shutter door can be controlled to be executed under the condition of multi-signal input. Therefore, the limitation that a traditional roller shutter door only depends on a single button or is operated in a manual mode is overcome. The PLC collects instructions from the trigger signal unit through the input module and can establish logical judgment relations between different action instructions and door body states in combination with position signals obtained by the limiting detection unit, it is ensured that the roller shutter door only executes corresponding actions under the safe and allowable conditions, and the safety of the roller shutter door is guaranteed. And potential safety hazards such as top rushing, overwinding or reverse action caused by inaccurate position judgment in a traditional system are effectively avoided.

The present invention discloses a method and device for demodulating and analyzing large Doppler frequency shift (OTFS) satellite communications, belonging to the field of satellite communications. The device includes a data acquisition unit, an IQ imbalance calculation unit, an amplitude error calculation unit, a continuous phase signal generation unit, a convolution detection frame header determination unit, two guard slot removal units, two receive reference signal acquisition units, a sampling phase error acquisition unit, two theoretical demodulation reference signal generation units, a channel model extraction unit, a Doppler frequency error calculation unit, a Doppler frequency error elimination unit, a phase error calculation unit, a Doppler phase error elimination unit, a channel estimation unit, an interpolation and smoothing unit, a channel error elimination unit, a Wigner transform unit, a symplectic finite Fourier transform unit, a digital modulation and demodulation unit, and an error vector magnitude (EVM) calculation unit. The present invention can achieve high-precision demodulation and analysis of large Doppler frequency shift (OTFS) orthogonal time-frequency-space modulation (6G) satellite communication signals.

The application discloses a thyristor trigger signal and driving circuit for non-controlled rectification of a direct-current bus voltage, comprising a voltage comparison unit, a pulse wave generation unit, a trigger signal unit and a driving unit; the voltage comparison unit is used for judging a thyristor opening time and sending an output effective level signal to the trigger signal unit; the pulse wave generation unit is used for generating a frequency-adjustable pulse wave and sending the pulse wave to the trigger signal unit; the trigger signal unit is used for synthesizing a trigger signal based on the effective level signal and the trigger signal and sending the trigger signal to the driving unit; and the driving unit is used for controlling conduction of the thyristor based on the trigger signal. The application greatly improves reliability of the thyristor driving, avoids problems of power waste and large loss of a driving power supply, and can be applied to high-power frequency converter products in batches.

The invention discloses a signal transmission method and device, communication equipment and a readable storage medium, and belongs to the technical field of communication, and the signal transmission method comprises the steps that first equipment carries out backscattering modulation according to a to-be-transmitted information bit and a second signal to obtain a first signal; wherein the second signal is a carrier signal of the first signal; the first signal comprises at least one first signal unit, each first signal unit comprises two chirp spread spectrum CSS symbols, the average powers or reflection coefficients of the two CSS symbols are different, and other parameters, except the average powers and the reflection coefficients, of the two CSS symbols are the same; the information bits to be transmitted are modulated through the frequency of each CSS symbol in each first signal unit; and sending the first signal.

The utility model provides a novel camera image transmission module, and relates to the technical field of image transmission, the novel camera image transmission module comprises a rear cover and a front cover installed at the front side of the rear cover, the inner wall of the right end of the rear cover is provided with a mainboard, and the outer wall of the left end of the mainboard is fixedly connected with an image transmission module main body. A plurality of signal units are arranged on the outer wall of the front end of the image transmission module body at equal intervals to receive and transmit signals, a first heat conduction plate is arranged on the right side of the mainboard to guide the heat circulation direction of the mainboard, and first heat dissipation teeth are fixedly connected to the outer wall of the lower end of the first heat conduction plate to diffuse heat. The outer walls of the lower ends of the first heat dissipation teeth are fixedly connected with heat conduction pieces to guide heat to flow, and the leftmost sides of the outer walls of the upper ends of the heat conduction pieces are fixedly connected with second heat dissipation teeth to diffuse heat. By installing the first heat conduction plate, the first heat dissipation teeth, the heat conduction pieces and the second heat dissipation teeth, the stable working temperature is kept, the performance and reliability of the equipment are improved, and the service life of the equipment is effectively prolonged.

The utility model belongs to the technical field of cesium optical pump magnetometers, and particularly relates to a split type cesium optical pump magnetometer, which comprises a data acquisition and processing module, and is characterized in that a connecting line I is mounted on the surface of one side of the data acquisition and processing module, and an electronic component module is mounted at one end, far away from the data acquisition and processing module, of the connecting line I; a second connecting line is installed on the surface of the side, away from the first connecting line, of the electronic assembly module. The components of the device adopt a split design, are connected through a connecting line, are convenient to install on an unmanned aerial vehicle, can simultaneously collect by a plurality of cesium optical pump probes, have the characteristics of high sensitivity, good stability, high precision and the like, can separate cesium optical pump signal generation from signal conversion, and can connect a plurality of cesium optical pump signal units by using one signal conversion unit. The method achieves the centralized transmission and control of cesium optical pump data, and plays an important role in the fields of military affairs, geophysical exploration and the like.

The invention discloses a downhole operation intelligent helmet based on an ad-hoc network and cooperating with a cloud GIS platform, and relates to the field of coal mine intelligence. Comprising a signal unit, a UWB device and a combined function unit. The signal unit is used for carrying out communication interaction with the cloud GIS platform and uploading absolute coordinates of the intelligent helmet; the UWB device is used for carrying out point-to-point distance measurement and information sharing with other intelligent helmets comprising the UWB device to form a local area ad hoc network of a plurality of intelligent helmets; and the combined function unit is used for realizing corresponding functions of the intelligent helmet based on the functions of each function unit. According to the invention, a local area ad hoc network is creatively realized through the UWB device of the intelligent helmet, personnel networking is constructed, localized positioning information processing is realized, and the real-time performance of acquiring position information by underground operating personnel is improved. The bandwidth pressure on the main industrial internet is effectively reduced, and cooperation and information sharing of operators in the area can be realized. And accidents are avoided while the construction convenience of underground personnel is improved.

Aerodrome signalling system (100), comprising a plurality of signalling units (2), each comprising at least one aerodrome signalling device (9, 10), and a central communication unit (4) configured for data communication with the plurality of signalling units. The plurality of signalling units (2) each comprise a wireless data communication device (18) configured for cellular data communication and at least one sensor device (15) configured to capture measurement data in relation to one or more of: an environmental condition, a meteorological condition, a presence of an object, a movement of an object and a status condition relating to the respective signalling unit other than a status condition of the respective at least one signalling device. The at least one sensor device (15) is configured to communicate the measurement data to the wireless data communication device for transmission via a cellular network.

The invention discloses an encrypted information storage system and method based on an industrial control host. The system comprises a solid-state storage unit, an interaction signal unit, a hardware verification unit, a software verification unit and a storage information management unit, the method is suitable for the encrypted information storage system based on the industrial control host so as to realize the access authority to the industrial control host. Through a multi-level verification mechanism, the difficulty of illegal access is greatly increased, and the risks of data leakage and hostile attacks are reduced; the interlocking mechanism ensures that the system can keep high security under any condition, and even if a certain verification link has a vulnerability, illegal access cannot be successful due to the existence of the interlocking mechanism; the encryption technology can effectively prevent data from being stolen or tampered in the storage and transmission process. Even if an attacker obtains the encrypted conversion data, the original data cannot be restored due to the lack of correct decryption key and verification information, so that the security of the encrypted information in the industrial control host is protected.

The present invention provides a technology that enables the simple control of actions of an external device, for example, a robot, via a signal from a numerical control device. A numerical control device is provided, which is connected to an external device via a control unit and which uses a numerical control program to control the external device. The numerical control device comprises: a signaling unit that controls actions of the numerical control device in response to a signal from a machine tool controlled by the numerical control device; and a plurality of control systems, comprising a control system for the external device and a control system for the machine tool.A signal selection unit that selects from the multitude of control systems other than the control system of the external device a control system with which the control system of the external device refers to a specific signal; a signal determination unit that determines whether or not notification of the specific signal has been received from the one control system selected by the signal selection unit; and a signal transmission unit that, if notification of the specific signal has been received, notifies the control device of the specific signal, the control device controlling the control system of the external device according to the notified specific signal.

The invention provides a multi-input pulse shaping circuit based on current addition and electronic equipment, and relates to the field of integrated circuits. The input end of each path of detection unit in the multiple paths of detection units is connected with one pixel, and the output end of each path of detection unit is connected with the input end of one path of trigger signal unit. According to the comparator circuit, the amplitude of the signal transmitted to the input end of the comparator through the summing circuit is far higher than that of the signal transmitted to the input end of the comparator through a traditional circuit structure, the threshold voltage range can be set to be high, and the comparator circuit meeting the requirement can be designed with a small area. A good measurement dynamic range can be achieved under the condition that the area of a chip is saved, and meanwhile the risk of false triggering is avoided. And tiny disturbance generated by a single pixel under the condition of no input signal cannot be detected, so that the working reliability of a chip is improved. The multi-input pulse shaping circuit structure based on current addition can enable a front-end circuit to reach an excellent dynamic range under the condition of saving the area of a comparator.

This invention relates to a power tool and a motor control method for the power tool. When the handle is in the working position area and locked relative to the main unit, a signal unit feeds back a first state signal; when the handle is in the non-working position area, the signal unit feeds back a second state signal. Upon receiving the first state signal, the control unit controls the motor to start according to a first control logic; upon receiving the second state signal, the control unit controls the motor to start according to a second control logic, which is different from the first control logic. Thus, when the handle is in the non-working position area, different starting logics are used to control the motor startup, reducing the probability of accidental start-up of the power tool due to accidental triggering of the switch assembly, reducing user risk, and improving the safety of the power tool.

An automated system for signaling cell growth events using continuous sensor data includes at least one sensor associated with a vessel configured for use in growth of cells, the sensor providing continuous sensor data associated with cell growth, a reader in operative communication with the sensor to collect the continuous sensor data, and a computational unit operatively connected to the reader, wherein the computational unit is configured to receive as input the continuous sensor data and calibration data associated with process conditions, the computational unit further configured to perform signal processing on the continuous sensor data in order to predict at least one of future critical events and generate insights about unexpected behavior.

The invention relates to the technical field of antennas, in particular to a large-scale MIMO array antenna which comprises a mounting rod, a mounting plate and a signal unit, two clamping claws are arranged on the outer side of the mounting rod, an upper folding plate is arranged on the outer side of the mounting plate, a horizontal reset assembly is arranged between one clamping claw and the upper folding plate, and the signal unit is arranged on the mounting plate. The large-scale MIMO array antenna has the function that the mounting plate and the signal unit borne by the mounting plate can be automatically reset in the horizontal direction, the large-scale MIMO array antenna is provided with the horizontal reset assembly and the transverse reset assembly, the reset functions of the mounting plate and the signal unit in the horizontal direction and the transverse direction are achieved respectively, the continuous concentrated load of strong wind on the mounting rigid structure can be buffered, and the mounting reliability is improved. The large-scale MIMO array antenna has the advantages that the support, the connecting piece and the like are prevented from being fractured due to the fact that load exceeds tolerance limit, equipment damage probability is reduced, operation and maintenance stability of a base station is guaranteed, potential safety hazards caused by structural fracture are reduced, and the overall service life of the large-scale MIMO array antenna is prolonged.