182results about How to "Reduce debugging workload" patented technology

The invention belongs to the field of simulation and particularly relates to a distribution network fault simulating method, a distribution network fault simulating device and a distribution network system. The distribution network fault simulating device comprises a double-source power supply circuit, a simulation protecting module, a plurality of simulative distribution terminal modules and a simulative fault recovering module; and the distribution network fault simulating device can simulate on-site equipment and a fault, simulate the communication of the simulation protecting module and the plurality of simulative distribution terminal modules of a transformer substation with a simulative distribution main station, simulate an actual load current, simulate a fault current and report fault information, simulate to execute remote-control switching-on and switching-off operations to simulate the cutoff of the fault current and switch on a normal current. The distribution network fault simulating device can completely replace a protective device and actual hardware equipment of a distribution terminal, reduce the field occupancy of the equipment and the wire-connecting and debugging workload of the equipment, save manpower and improve the working efficiency.

The invention relates to a virtual camera shooting method. The method comprises: constructing an interactive virtual shooting system; selecting virtual machine positions and types of virtual cameras used at the virtual machine positions according to shooting demands; configuring camera shooting parameters of the virtual cameras, using the selected virtual cameras to shoot in a three-dimensional scene, and controlling shooting actions of the virtual cameras in the shooting process; and rendering pictures shot by the virtual cameras into a frame sequence, and outputting the rendered pictures. According to the method, shooting effects under different selections can be obtained according to selection of the different virtual machine positions and the virtual camera types, reference basis is provided for shooting works under real scenes, damage risks to equipment in the repeated transportation and mounting process are reduced, work efficiency and quality are improved, and the shooting cost and the time cost are reduced.

The invention discloses a sliding formwork control method used in motion control of a virtual axis machine tool cutter, comprising the following steps: planning the space motion trail of the cutter in the processing procedure of a virtual axis machine tool; determining the expected motion trail of each active pair of the virtual axis machine tool in the processing procedure; then establishing the mathematical models of the controlled objects of each control branch circuit of the virtual axis machine tool; detecting and determining the actual motion state of each active pair of the virtual axis machine tool; calculating the function of the switching surface according to the sliding formwork control theory; determining the motor drive controlled variable of each control branch circuit of the virtual axis machine tool and sending to each motor driver; and finally driving each active pair by the motor drive controlled variable of each control branch circuit so as to drive the virtual axis machine tool cutter to realize the expected motion. In the invention, the precise models of the controlled objects of each branch circuit are not needed to be established, and the high-precision control towards the motion of the cutter can be realized by utilizing the excellent characteristics of the sliding formwork control technology; and the controlled variable of the sliding formwork is constituted by continuous functions with no trembling problems.

The invention discloses an outdoor all-weather and all-time atmospheric aerosol particle laser radar device which comprises an integrated square cabin, a laser, an intelligent control unit, an optical unit, a signal acquisition and analysis unit, an electric wiper, and a blowing device. The intelligent control unit controls the operation of the machine equipment. The laser emits pulse laser, which is incident on the atmosphere after beam expansion. An optical receiving unit receives back scattered light of atmospheric aerosol particles. A polarization detection prism of a receiving channel separates vertical polarization components from parallel polarization components. A photoelectric detection module converts the light into electrical signals. The signal acquisition and analysis unit acquires, analyzes and displays the electrical signals. Thus, vertical distribution information of the atmospheric aerosol particles is obtained. The device improves the signal-to-noise ratio of detection signals, and has such functions as lightning protection design, photoelectric detection module high-voltage online program-controlled adjustment, instrument internal temperature monitoring and automatic skylight cleaning. The device has a protection grade up to IP65, and meets the requirement for outdoor all-weather and all-time operation.

The invention relates to the technical field of distribution automation testing, particularly to a debugging method and debugging system for distribution automation equipment. The method comprises the following steps that: step one, distribution automation terminal and single switch device testing is carried out; to be specific, whether a distribution automation terminal and a single switch device meet standards is determined; step two, transformer transformation ratio testing is carried out; to be specific, transformers are connected with a power supply of a distribution automation equipment integrated test bench by power lines and are connected with a transformer transformation ratio tester by test lines; during single transformer testing, the current magnitude of the current transformer increases and the voltage of the voltage transformer increases, transformation ratios of the transformers are detected, correlated power data are calculated and corresponding recording is made, and whether the transformers meet standards is detected; and step three, joint debugging of a distribution automation equipment zone main station system is carried out; to be specific, whether joint debugging of an equipment zone main station system meets a standard is detected. Using the method and system, the field debugging workload can be reduced.

The invention discloses an intelligent master station and sub-station multi-level anti-misoperation locking system. The invention aims to realize effective cooperation between a master station and sub-stations. The intelligent master station and sub-station multi-level anti-misoperation locking system of the invention is provided with a monitoring and control device, a transformer station monitoring host and a scheduling master station; the monitoring and control device is in communication connection with a communication gateway machine and the transformer station monitoring host; and the scheduling master station is in communication connection with the communication gateway machine and the transformer station monitoring host. The transformer station monitoring host performs configuration generation, maintenance and check for the five-prevention rules of the monitoring and control device and the scheduling master station; the transformer station monitoring host has unique management authority over the management of the operation of primary equipment; the five-prevention modules of the scheduling master station and the transformer station monitoring host share five-prevention locking logic with each other; and the scheduling master station and the transformer station monitoring host realize multi-level anti-misoperation locking and achieve effective coordination operation, and therefore, the debugging workload of the five-prevention rules of the scheduling master station and the transformer station monitoring host can be greatly decreased.

The invention discloses a multi-channel sinusoidal signal generator and a method for generating multi-channel sinusoidal signals. By the adoption of the multi-channel sinusoidal signal generator and the method for generating the multi-channel sinusoidal signals, the sinusoidal signals of tens of or hundreds of channels can be directly generated, and the amplitude, the frequency, and the initial phase of each signal can be digitally set; synchronization of the signals of all channels or signals of a plurality of channels can be achieved, and phase difference can be set between every two same-frequency signals. A waveform generation circuit is composed of a single programmable logic device and multiple analog units. Each analog unit is controlled by an amplitude control signal, a phase frequency control signal and a public fundamental frequency square signal. At least 2N+1 control lines, for driving the N channel analog units, of the programmable logic device are arranged. According to the multi-channel sinusoidal signal generator, a storage, a DAC and an analog multiplier are not applied to the waveform generation circuit, and only one programmable logic device, N analog multi-channel switches, N four-operational-amplifiers and N dual-operation-amplifiers are adopted, so that the hardware cost is low, and an analog circuit is simple. The multi-channel sinusoidal signal generator and the method for generating the multi-channel sinusoidal signals are suitable for application occasions requiring one or more characteristics such as a large number of channels, channel synchronization, and channel isolation.

The invention discloses a damping device of swing arms of slipping steering loaders, comprising a swing arm cylinder, a three-position six-way valve which is used for controlling the swing arm cylinder, an energy accumulator, a fuel tank, a first two-position two-way solenoid valve and a second two-position two-way solenoid valve. The first two-position two-way solenoid valve comprises a zero leakage plug-in-type cut-off valve. The large chamber of the swing arm cylinder is connected with the energy accumulator by an oil pipe and the first two-position two-way solenoid valve is arranged on the pipeline between the large chamber of the swing arm cylinder and the energy accumulator. The small chamber of the swing arm cylinder is connected with the fuel tank by the second two-position two-way solenoid valve. The damping device has beneficial effects that the two-position two-way solenoid valves adopted by the invention has a two-direction zero-leakage cutting off function, thus in the case of long-time halt state, the oil pressure in the energy accumulator remains unchanged to effectively avoid bad damping effects or damping failure which are caused by leakage of oil in the energy accumulator. A fixed throttling valve is adopted to reduce the purchase cost and adjustment workload and improve the reliability of the damping device.

The invention discloses a non-coherent spread spectrum communication device with variable data rate, which relates to realizing non-coherent spread spectrum modulation and demodulation data transmission with variable data rate bit by bit, configurable spread spectrum code rate, strong anti-Doppler performance and fast synchronization speed under the condition of low signal-to-noise ratio. Frequency sweep, parallel partial coherence and incoherent accumulation are used to realize the fast acquisition of incoherent spread spectrum signals with large frequency offset range, and digital average filter and square filter are used to achieve symbol timing synchronization of incoherent spread spectrum signals. The invention has high integration degree, strong portability, light weight and low power consumption, small commissioning workload of the whole machine, simple and flexible interface, easiness in expanding, and stable and reliable performance, the circuit is integrated in a 292mm long,185mm wide and 28mm high square terminal, weighing 0.6 kg, which is especially suitable for the application of non-coherent spread spectrum modulation and demodulation channel transmission terminal inairborne satellite communication system with limited volume and weight.

The invention relates to a comprehensive controlling and protecting device and a comprehensive controlling and protecting method for a waste heat recovery turbo generator set. The device comprises a control computer, a voltage sensor, a current sensor, a communication unit and a fault protection and alarm signal unit; the voltage sensor and the current sensor are arranged on an output line of a generator and connected with the control computer through a simulated connecting line; and the control computer is also provided with a voltage and reactive power control signal unit. The method comprises the steps of constant power factor control of the generator, active power control of a steam turbine, voltage adjustment and frequency adjustment of the generator, connection of the generator and a power grid and the like. The device has the advantages of high integration degree, simple structure, small size, low cost, convenience in installation, low debugging workload, wide application range, high efficiency and high reliability, can communicate with an upper computer, and fulfills the aims of centralized monitoring and diagnosis. The method has the advantages of high automation degree, stability and reliability, and is easy to operate.

The invention discloses a transformer substation patrol robot positioning and navigation system which comprises a main control computer, a first gear motor, a second gear motor, a laser radar, a first coder, a second coder, a motion control module, a data acquisition card, a wireless data communication module and a power supply module, wherein the laser radar is connected to the main control computer to transmit information of a surrounding environment to the main control computer, thus finishing map establishment and positioning, route planning, local obstacle avoidance and completing map information. According to the positioning and navigation system, artificial surveying and mapping as well as map establishment in advance are avoided, and autonomy is high; an environment map of a transformer substation can be automatically established and be updated in a patrolling process.

The invention relates to a performance test system for an HCU (hydraulic control unit) in an automobile brake system and belongs to the technical field of quality detection of automobile chassis dynamically-controlled parts. The test system comprises a pressure lifting device, a hydraulic pipeline system, a measurement control device and an environmental simulation device, and all parts of the test system are connected through pipelines. By means of the performance test system for the HCU in the automobile brake system, parameters such as the response speed and the sealing performance of an HCU valve, the flow and the pressurizing capacity of a plunger pump, the volume of an energy accumulator and the like can be tested accurately.

The invention provides a touch screen separating device, offering a touch screen, and the touch screen comprises a plurality of layered assembles, the layered assembles are pasted together through the sticking layer, the touch screen separating device comprises a cutting line, the cutting line works in periodicity for cutting the sticking layer for separating the layered assembles in the touch screen. The touch screen separating method is also provided and the method comprises the steps as follows: S1, offering the touch screen, and fixing the touch screen on a screen fixing device; S2, offering the cutting line, adjusting the height of the cutting line; S3, receiving and releasing the cutting line in periodicity for cutting the sticking layer on the touch screen. The screen separating efficiency is high by adopting the touch screen separating device or the touch screen separating method and the separating effect is good.

The invention discloses an EHF (extremely high frequency) high-linearity high power amplifier device and relates to upstream channel equipment in the field of EHF satellite communication. The device comprises a double-mode attenuator, a pre-distortion linearization amplifier, a solid-state high power amplifier, a coupling wave detector, a monitoring unit and the like, wherein the solid-state high power amplifier uses the radial linear space power synthesis technology to achieve EHF high power output; the pre-distortion linearization amplifier uses a diode-based analog pre-distortion multi-loop circuit structure to achieve ultralow third-order intermodulation performance; the double-mode attenuator has functions of digital attenuation, analog attenuation and signal detection; the double-mode attenuator, the coupling wave detector and the monitoring unit are coordinated to achieve automatic gain or level control. The EHF high-linearity high power amplifier device is compact in structure, high in integrity, lightweight, low in power consumption, wide in work temperature range and especially suitable for being used as the power amplifier device of an EHF satellite communication microwave channel.

The invention discloses a public community charging pile data concentrator with a dual-network complementary function and an application method of the data concentrator. The data concentrator comprises a main control board, an LED (light-emitting diode) display screen, an uplink communication module, a downlink communication module, a storage module, an intelligent electric meter, a keyboard, an entry and exit processing module, an LED indication lamp and an equipment maintenance port, wherein the LED display screen, the uplink communication module, the downlink communication module, the storage module, the intelligent electric meter, the keyboard, the entry and exit processing module, the LED indication lamp and the equipment maintenance port are respectively connected with the main control board. The data concentrator communicates with charging piles in a community by a micro-power wireless module, so that the communication fee of each charging pile is saved, the communication cost of a whole electric vehicle operation network is reduced, communication links capable of directly accessing into a background of an electric vehicle operation management system are reduced, and the running speed of the background of the system is increased.

The invention discloses a train operation safety protection system without secondary train occupation detection equipment, and the system comprises an initial train position marking module which enables a dispatcher to mark the section occupation information corresponding to the initial train positions of all trains manually through ATS before the system is powered on, a train tracking initialization list module which is used for initializing a train tracking list by the ATS according to the marked section occupation information and sending the train tracking initialization list to the trackside ZC; and a running train position tracking module which is used for tracking the positions of all trains by the trackside ZC in the running process of the trains. According to the invention, the train operation safety protection can be realized when no secondary train occupies the detection equipment, and the safety protection problem of the signal system when no secondary train occupies the detection equipment for auxiliary protection is effectively solved.

The invention provides a multi-node distributed field intensity test system and method based on Bluetooth communication. The test system comprises a distributed measuring unit and a terminal device having Bluetooth communication with the distributed measuring unit. The distributed measuring unit comprises N field intensity testers arranged at N test nodes respectively. Each field intensity tester is used for acquiring field intensity measurement data of the corresponding test node. The field intensity measurement data obtained by the N field intensity testers are gathered to a specified test node wirelessly and transmitted to the terminal device by the specified test node through Bluetooth communication. The terminal device is used for performing fitting processing on the measurement data and obtaining the field intensity spatial distribution state of an area to be tested. According to the test system and method, communication between all the electromagnetic field testers in the area and the remote terminal is achieved through a Bluetooth communication module, and the test system and method are easy and convenient to operate, reliable in communication and high in cost performance; electromagnetic field vector distribution of the area to be tested is obtained through a multi-point measurement and interpolation fitting mode, and thus data are complete, display is visualized, and the test system and method are convenient to use.

The invention discloses a hydraulic control method for a ram piston oil cylinder of an internal mixer. According to the method, pressurizing and floating of a pressing lead are achieved, and a control effect of floating of the pressing lead is good. The hydraulic control method is characterized in that the pressure and speed of a ram piston are controlled by a main PLC of the internal mixer, and the pressure control over the ram piston is the pressure control over rod end chambers of the ram piston oil cylinder; a first hydraulic oil path is connected with non-rod end chambers of the ram piston oil cylinder through oil pipes by passing an oil inlet P1, a proportional servo valve PLV, an electromagnetic cartridge valve YV1 and an electromagnetic cartridge valve YV2; the other hydraulic oil path is connected with the rod end chambers of the ram piston oil cylinder through the oil pipes by passing the oil inlet P1, the proportional servo valve PLV and an electromagnetic cartridge valve YV4, and the rod end chambers of the ram piston oil cylinder are connected with the oil inlet P1 through a rising differential one-way valve; an electromagnetic cartridge valve YV3 connected with an oil return opening T2 is further connected between the electromagnetic cartridge valve YV1 and the electromagnetic cartridge valve YV2; an oil inlet P of the proportional servo valve PLV is connected with the oil inlet P1, and an oil return opening T of the proportional servo valve PLV is connected with an oil return opening T1. According to the hydraulic control method, a hydraulic control device for the ram piston oil cylinder is simplified, closed-loop control over the pressure of the ram piston can be truly achieved, and the quality of rubber mixing is improved.

The invention discloses a stamping process profile compensation method for a vehicle roof cover with a sunroof. A stamping process for the vehicle roof cover with the sunroof comprises the following four procedures: 1. drawing; 2. trimming, punching and side shaping; 3. trimming, flanging and shaping; 4. trimming, punching, side punching, side shaping and upward flanging. As for the stamping process profile compensation method, die profiles from the first procedure to the third procedure are compensated. Through the method of the invention, the stamping process profiles are compensated by thepreliminary CAE analysis, and the process compensation scheme is formulated at the process design stage, thereby greatly reducing the die debugging workload, shortening the die forming cycle of complicated panel dies such as the roof cover, reducing die development costs, and improving the quality of the large panel dies.

The invention discloses a proportional valve precise modeling based control method of an asymmetric electric-hydraulic proportional system. Under the influence of asymmetric factors including load, structure and the like, the proportional valve of the asymmetric electric-hydraulic proportional system is asymmetric in output flow characteristic, so that the problem about control over the entire system appears; and in order to solve the problem, the patent regards an ideal linear proportional valve flow model as a control target to carry out precise modeling on the proportional valve with asymmetric actual load flow, and a compensation equation is obtained through the twice equation solving method, so that after compensation, flow output of the ideal model can be realized, load flow output is free from influence of the load and the internal flow state of the valve, the proportional valve model is the linear model, the asymmetric electric-hydraulic proportional system is the linear system, and finally, high precision control over the asymmetric electric-hydraulic proportional system is realized through a unified linear control strategy.

The invention discloses charging piles for wireless carrier dual-network complementation of public communities and the application method thereof. The charging piles comprise main control boards, opening-in and opening-out processing modules, measurement processing modules, printing modules, intelligent electric meters, keyboards, CAN data interfaces, intelligent card reading-writing modules, cameras, LED display screens and communication modules. The application method solves the problem that the large scale of charging piles are accessed in an electric vehicle background in the public communities. Through the application method, the data interaction can be implemented between the charging piles and the electric vehicle background through two free communication methods of radios and carriers, so that the expensive communication cost is reduced, and the influence to the communication quality from peripheral interference sources or other same-frequency-band wireless signals is effectively avoided.

The invention discloses a car door assembly fixture. The car door assembly fixture comprises a vertically-arranged quadrangular frame, a doorsill turning edge positioning mechanism is fixedly arrangedat the bottom end of the first surface of the frame, a bottom supporting mechanism is fixedly arranged on the lower surface of the bottom of the frame, side edge supporting mechanisms are symmetrically and fixedly arranged on the two opposite sides of the upper portion of the first surface of the frame, compression mechanisms are symmetrically and fixedly arranged on the two opposite sides of theupper portion of the second surface of the frame, the compression mechanisms are matched with the side edge supporting mechanisms in position, and car door positioning mechanisms are fixedly arrangedon the two side edges of the frame. The fixture is convenient to position, flexible in operation and favorable of improving the production efficiency. The invention further provides a movable car door assembly fixture assembly. The movable car door assembly fixture assembly comprises a movable containing table and the above car door assembly fixture which are matched, movement of the car door assembly fixture is facilitated, the labor intensity is greatly reduced, and the production is better is improved, and cost is better saved.

The invention relates to a cluster measuring and controlling device for spacer layer equipment of an intelligent substation. The cluster measuring and controlling device comprises two sets of measuring and controlling sub-equipment having identical configuration of media boards and being standby equipment for each other, wherein the board configuration of each set of measuring and controlling sub-equipment comprises a power supply board, a process layer interface board with an SV / GOOSE receiving interface and a GOOSE transmitting interface, an input board and a main processing board; and the power supply board, the process layer interface board and the input board of each set of measuring and controlling sub-equipment are electrically connected with the main processing board respectively.After replacement of an existing measuring and controlling device with the cluster measuring and controlling device, the number of measuring and controlling devices in an interval layer is greatly reduced; the installation, debugging, operation and maintenance cost of a monitoring system is lowered; and the outstanding problem of no indepdnent stand-by measuring and controlling device in the existing monitoring system is solved.

The invention discloses a control method for an asymmetric electric-hydraulic proportional system based on model transferring. By converting a transfer function, an asymmetric mathematical model of the asymmetric electric-hydraulic proportional system is converted into a symmetric system model, the symmetry of a load flow model is achieved, and when a unified controller is adopted, responses of forward and reverse motions are identical; by means of signal conversion, the load flow model of the asymmetric system is established, and the purposes of transfer function converting and model converting are achieved, and a new established system model serves as a symmetric load flow model. The achieving method comprises the steps that a reference signal symmetrical to a proportional valve is given, after a signal is converted, a new input signal of the proportional valve is obtained, and proportional valve is controlled to work, so that load flows of the asymmetric electric-hydraulic proportional system in a proportional valve linear region in the forward motion and the reverse motion is identical; by means of the method, an asymmetric effect is eliminated by an asymmetric factor of the system through mathematical conversion, and the identical response of the asymmetric electric-hydraulic proportional system is achieved simply and intelligently.

The invention provides a multi-frequency non-house-entry type electric energy meter missort checking device and a multi-frequency non-house-entry type electric energy meter missort checking method based on a PLC communication technology. The multi-frequency non-house-entry type electric energy meter missort checking device is composed of a host and a slave, wherein the host adopts an RS485 communication mode at a plurality of electric energy meter wire outgoing ends and reads different electric energy meter address information, a modulation circuit modulates the different electric energy meteraddress information into high-frequency carrier signals of different frequencies, transmits the high-frequency carrier signals to a user side by using the PLC communication technology, designs a wave-blocking circuit between the modulation circuit and electric energy meters, and prevents the high-frequency carrier signals from being transmitted between the adjacent electric energy meters and affecting the reliability of detection results; the high-frequency carrier signals are diverged to the space due to the change of the transmission impedance at household air switches of the user side, theslave is designed with a high-frequency carrier signal detecting antenna for detecting the high-frequency carrier signals at each user side, and the high-frequency carrier signals are demodulated toobtain high-frequency carrier signal frequencies and electric energy meter address information corresponding to users, thereby realizing non-house-entry type electric energy meter missort checking.

The invention discloses a modeling method based on an international electro technical commission (IEC) 61850 protocol and an extensive makeup language (XML) database. The method includes that (1) for a substation automatic system adopting the IEC 61850 standard, according to a whole-station security coding device (SCD) model description file, IED models of all devices in the substation are extracted; (2) the IED model structures of all the devices are unfolded and described in an XML file format and converted into a static base and an event base of an XML structure; (3) by means of the XML structure, a real-time base and an event deflection base based on the XML database are built; (4) a database API packaged with XQUERY inquiry language is used for processing the XML database. The method for describing an IEC 61850 model structure in the XML information format without distinguishing signal types is provided and developed. Information conversion and processing are achieved through the XML database, and accuracy of the models and parameters generated automatically can be ensured.

The invention discloses a forming process for an inner panel of an automobile tailgate, which comprises the following steps: 1. determining that the drawing die surface is V-shaped with the opening facing upward; Die parting line and window hole parting line; 3. Blanking, forming the outer contour and window hole contour to obtain the semi-finished product of the tailgate inner panel; 4. According to the upper parting line, the lower parting line and the window hole The position of the parting line, the semi-finished product is placed on the drawing die for drawing forming, and the drawing die adopts a drawing die with a binder ring binder core and a window hole binder core. The invention can solve the forming quality problems such as easy wrinkling and cracking, insufficient internal forming, poor rigidity and other forming quality problems caused by drawing forming of the inner panel of the automobile tailgate, as well as the quality problems caused by the piercing knife process, long manufacturing time and heavy workload And other issues.

The invention provides a variable-frequency series resonance test method based on an FPGA (field programmable gate array). The method comprises the following steps: collecting voltage signals and current signals of a three-phase power supply; conditioning the voltage signals and the current signals with a VHS-ADC (video home system-analog to digital converter) platform; carrying out the SVPWM (space vector pulse width modulation) according to the digital voltage signals and the digital current signals obtained through the conditioning and sine wave and cosine wave so as to obtain the SVPWM modulation signal; establishing a VHS-ADC control system based on an FPGA chip for realizing the SVPWM manner; generating SVPWM pulse signals from the SVPWM modulation signals with the VHS-ADC control system; and carrying out the series resonance test according to the SVPWM pulse signals. According to the technology disclosed by the invention, the power factor of a power supply on the alternating-current (AC) input side of the variable-frequency series resonance test device is increased, and the fluctuation of the output direct-current (DC) voltage is reduced, so that the voltage waveform on the output side of the variable-frequency power supply becomes the sinusoidal waveform with good smoothness, and the utilization rate of the power supply is increased; and due to the VHS-ADC control model established based on the FPGA, the development for the control system part is short in cycle, low in debugging workload and fast in processing speed.

The invention provides a white balance synchronization method and system, electronic equipment, a medium and digital imaging equipment. The method comprises the following steps: obtaining a pixel proportion and a pixel position mapping relationship between a key camera and a synchronous camera; acquiring a key target image acquired by a key camera and a synchronous target image acquired by a synchronous camera; performing white balance processing on the key target image; extracting a target region of interest from the key target image; according to the pixel proportion and the pixel position mapping relationship, obtaining a target mapping region corresponding to the target region-of-interest position from a synchronous target image; and performing white balance adjustment on the synchronous target image according to the average value of the color components in the target region of interest and the average value of the color components in the target mapping region. White balance synchronization between different cameras is realized, the early debugging workload is reduced, the calculation complexity is reduced, and the method is suitable for different cameras to acquire the same scene at the same time.