107results about How to "Reduced wiring effort" patented technology

The invention discloses a building energy management and energy consumption data evaluation system and a method thereof. The system includes energy consumption intelligent instruments, namely energy measuring units, is provided with a concentrator, a communication server, a database server and a back-stage analysis / display module. The method includes the steps as, firstly, communication with the energy consumption intelligent instruments; secondly, real-time acquisition for data collected by the intelligent instruments; thirdly, data classification and measure unit unification of data of the same kind; fourthly, statistics analysis for energy data of the same type and at the same region; fifthly energy effect analysis chart display, and overproof warning based on the prejudgement; and sixthly, anticipated effect evaluation. Through the adoption of system and the method, the energy consumption data is synchronous, timely, complete, real and clear, combined with the actual energy consumption, the anticipated energy consumption can be analyzed and contrasted, the advanced wireless technology and related equipment for communication are adopted, so that difficulty of wiring is greatly reduced, and problems brought by wiring are eliminated, synchronizing management and detailed analysis are realized, and the management report and effect analysis report can be generated directly.

The invention discloses an electric control work station of a large-scale isostatic press, comprising an upper computer provided with a programming software part and a monitoring software part, a master station with an on-the-spot and process communication PROFIBUS-DP interface and at least one slave station connected with a multi-branch communication network bus, wherein the master station through which a programmable controller (PLC) passes realizes bus communication control and management and completes periodic data access; a master station can control a plurality of slave stations on the bus; moreover, at least one logic link adopting round robin communication mode in information exchange is set up between the master station and each slave station. By means of the programmable controller, the invention sets up a high-performance industrial on-the-spot local area network through an on-the-spot and process communication field bus, thereby realizing network monitoring of process and reducing a great amount of wiring and cable investment; meanwhile, the communication network field bus with an all digital multi-branch structure improves system accuracy and reliability; moreover, the invention has low cost in installation, operation and maintenance, simpler operation and more visualized monitoring.

The invention relates to a pump station video monitoring system based on a smart phone, and the system comprises a plurality of shooting modules, a server and an Android mobile phone terminal; each shooting module consists of a network camera and a cloud deck, the network camera is used for collecting pump station video data, and all shooting modules are connected with the server through a wireless network bridge; the server is used for coding and compressing the video data collected by the shooting modules and transmitting the video data to the mobile phone terminal through a wireless local area wireless fidelity (WiFi); and the mobile phone terminal based on an Android platform is used for realizing the real-time playing of the video and for controlling the camera cloud deck through hyper text transfer protocol (HTTP). Due to the adoption of the pump station video monitoring system, the remote monitoring of a pump station can be realized, and the system is convenient for working personnel to manage the running situation of the pump station.

The invention discloses an intelligent illuminating control system based on distributed control, comprising a perceiving layer, a transmission layer and an application layer and further comprising a control center, wherein the control center is provided with at least one input end and at least one output end; a transmission layer communication network further comprises a first communication network and a second communication network; the perceiving layer uploads data to the control center by virtue of the first communication network; and the control center carries out analysis and operation according to the received data and sends instructions to light control units at corresponding target addresses on the application layer through the second communication network. By utilizing the intelligent illuminating control system, the switching-on and switching-off as well as brightness of a target streetlamp are controlled intelligently and dynamically. The intelligent illuminating control system has the advantages that centralized control and graded management are achieved, the allocation is flexible, the configuration is convenient and the like.

The invention relates to testing equipment for testing the generalized comfort of train rides, in particular a generalized comfort detection system, comprising a human body model, sensors installed on the human body model, a data acquisition unit and a wireless transmission unit for collecting sensor data, sensors, The data acquisition unit and the wireless transmission unit are connected in sequence. This generalized comfort detection system takes the main physical factors that affect the generalized comfort as the test object, simulates the comprehensive induction of various parameters by passengers in the specific position of the train, and evaluates the generalized comfort of high-speed trains. , The detection system adopts a wireless data transmission scheme, which reduces the cost of car body modification and wiring workload.

The invention discloses a method and system for remote video monitoring of an intelligent terminal. The method for remote video monitoring of the intelligent terminal includes the following steps that (1) real-time video in the current monitored area is collected by video monitoring equipment; (2) video data collected by the video monitoring equipment is stored by video monitoring storage equipment; (3) the video data stored in the video monitoring storage equipment is browsed by the intelligent terminal and the video monitoring equipment is remotely controlled by the intelligent terminal. The system for remote video monitoring of the intelligent terminal comprises the video monitoring equipment, the video monitoring storage equipment, a network and the intelligent terminal. The video monitoring equipment is connected with the video monitoring storage equipment through a video transmission cable, and the video monitoring storage equipment transmits the video data to the intelligent terminal through the network. The method and system for remote video monitoring of the intelligent terminal overcome defects existing in an existing remote video monitoring method, the system has the advantages of being fast to install, flexible in monitoring mode, high in reliability and the like, and real time performance and safety of video transmission can be guaranteed.

The invention discloses a liquid level measuring apparatus and method in volatile variable density medium. The liquid level measuring apparatus includes tank top pressure testing point, tank intermediate liquidoid tapping point, tank bottom pressure testing point, main insulating pipe, lossless power consumption wireless transmission unit, the first differential gage, the second differential gage, PTC heating unit, temperature sensor. The invention supplies a dual-differential gage differential gage which eliminates the liquid level measuring error aroused by density fluctuations of medium to be measured; brings forward the method of main insulating pipe which eliminates the measuring error aroused by static pressure uncertainty of negative-phase pressure transmitting pipe; the lossless power consumption wireless transmission unit is powered by lithium cell, communicates with supervisor based on the ZigBee protocol(IEEE82.15.4), wireless transmission unit can realize the acquisition and processing of differential pressure signal and temperature of the main insulating pipe and the control of the PTC heating unit which is applied externally on the main insulating pipe. The battery supply and lossless power consumption wireless transmission unit makes the wiring workload of liquid level measuring apparatus reduce greatly and improve the reliability at the same time.

The invention relates to a test device for testing the generalized comfort of train rides, in particular to a portable generalized comfort detection system, including a detection system and a portable analyzer. The detection system includes a human body model, sensors installed on the human body model, and acquisition sensors The data acquisition unit and the wireless transmission unit of the data, the sensor, the data acquisition unit and the wireless transmission unit are connected in sequence, the data acquisition unit collects the data and transmits it to the portable analyzer wirelessly through the wireless transmission unit. The invention takes the main physical factors affecting the generalized comfort as the test object, simulates the comprehensive induction of passengers on various parameters at the specific position of the train, and calculates the generalized comfort of the train in real time. According to the fully enclosed feature of the high-speed EMU, the detection system adopts wireless data The transmission scheme reduces the cost of vehicle body modification and the workload of wiring.

The invention relates to a power grid fault simulation test system movement detection device for a high-altitude photovoltaic power station. The movement detection device is of a vehicle-mounted container structure, is concentrated in three containers by adopting highly integrated design, the three containers are respectively a switch cabinet, a 35 kV electric reactor vehicle and a 10 kV electric reactor vehicle, each container is of a standard size, the transportation limitation requirements are met, and in addition, a centralized control vehicle carries a control system for totally controlling the whole device. The device can perform low voltage ride-through detection capability detection on the photovoltaic power station, can assist users in performing a wind power low voltage ride-through test, can finish switching of a wind power control system and a photovoltaic control system which are different, and is wide in coverage and high in adaptability.

The invention provides a fusion method and a fusion system of a data network and a management network and devices. The system comprises a switch, the switch comprises a first network segment and a second network segment, the first network segment corresponds to a first media access control (MAC) address, and the second network segment corresponds to a second MAC address. A server is used for receiving network message sent by the switch and judging that the network message is data network message or management network message according to the MAC address in the network message. According to the embodiment, the server is simultaneously accessed to the data network and the management network through a server network card, a switch port and a set of network gathering core, so the access cost of the server can be greatly reduced.

The invention discloses a sensor monitoring system based on an electronic identifier and a cloud platform, and a convenient detection data acquisition system and method. The sensor monitoring system comprises a first electronic identifier having sensor technical parameter information or encoding information, a cloud platform having a database, a sensor acquisition module, a second electronic identifier having technical parameter information or encoding information of the sensor acquisition module, and a handheld terminal. Data records of the database comprise sensor technical parameter information, the technical parameter information of the sensor acquisition module and data collected in a test; the sensor acquisition module receives the data collected by the sensor and sends it to the cloud platform; the handheld terminal is configured to identify the first and second electronic identifiers, and match data stored on the sensor acquisition module, the sensor and the database in the cloud platform. The terminal acquires data collected by the sensor through the cloud platform and sets parameters and warning indicators of each sensor. The monitoring system of the invention is simple,flexible, stable in performance and saves investment.

The invention discloses a wireless ultrahigh frequency sensor for local discharge detection under impulse voltage. The wireless ultrahigh frequency sensor comprises a signal processor, and a synchronous acquisition trigger antenna, a local discharge ultrahigh frequency detecting antenna and a wireless signal transmitting antenna which are electrically connected with the signal processor, wherein the synchronous acquisition trigger antenna receives a high frequency pulse signal which is generated when an impulse voltage generator generates an impulse voltage sphere gap action; the pulse signal triggers the local discharge ultrahigh frequency detecting antenna to receive a local discharge ultrahigh frequency signal generated in a combined electric appliance under the impulse voltage; after being digitalized by the signal processor, the local discharge ultrahigh frequency signal is wirelessly transmitted by the wireless signal transmitting antenna. According to the sensor provided by the embodiment of the invention, detection on local discharge under the impulse voltage is performed by using the ultrahigh frequency signal, so that the high anti-interference ability of the ultrahigh frequency signal can be effectively used; a wireless transmission form is adopted, so that wiring workload in a field is greatly reduced, and the field working efficiency and the detection accuracy degree are improved.

The invention provides a gas detection alarm device which comprises acquisition devices. The acquisition devices are arranged in an underground environment and are used for acquiring various environmental parameters in real time, and output ends of the acquisition devices are connected with input ends of a microprocessor by wires; output ends of the microprocessor are respectively connected with an alarm device and a power switch used for controlling underground power supply circuits; a relay router is interactively connected with the microprocessor, and underground information is wirelessly transmitted to an upper computer of a ground monitoring center by the relay router. The gas detection alarm device has the advantages that serious accidents of gas combustion and explosion can be fundamentally greatly reduced owing to the audible and visual alarm actions of the alarm device and the power-off action of the power switch; the information is wirelessly transmitted via the relay router, so that an underground condition can be effectively known and controlled via the upper computer of the ground control center.

The invention relates to a storehouse temperature and humidity environment monitoring system, and belongs to the field of measurement. The storehouse temperature and humidity environment monitoring system comprises a temperature-humidity sensor, a digital transmitter, a communication bus, a monitoring center, upper computer management software, a temperature adjusting device and a humidity adjusting device; a distributed intelligent network-based monitoring system is used herein, the system is based on field bus transmission mode and has 'serial' network connection structure, field wiring is facilitated, up to 32 acquisition terminals may be connected through a pair of twisted-pair wires, wiring work is reduced, and signal transmission distance is longer than 1,200 m; digital signal transmission is adopted so that no transmission error or signal loss occurs; temperature and humidity of storehouse environment can be detected and monitored and may also be automatically adjusted under uniform control of the monitoring center, storehouse environment temperature-humidity adjusting capacity and management level can be increased greatly, temperature-humidity monitoring can be finished for all storehouse environments with one monitoring computer, management is simplified, and the system is applicable particularly for upgrade modification of existing storehouses.

The present invention discloses a limit detection system for a two-axis four-frame photoelectric stabilization platform. The system comprises a plurality of proximity sensors, a signal acquisition module and a signal processing module; the plurality of proximity sensors are used for detecting the limits of the four frames of the two-axis four-frame photoelectric stabilization platform, wherein the limits include an inner orientation frame left limit, an inner orientation frame right limit, an inner pitching frame upper limit, an inner pitching frame lower limit, an outer pitching frame upper limit, an outer pitching frame lower limit and an outer orientation frame zero position; the signal acquisition module is used for acquiring the signals of the proximity sensors, converting the signals into digital signals and sending the digital signals to the signal processing module; and the signal processing module is used for receiving the signals of the signal acquisition module, processing the signals and judging whether each of the proximity sensors reaches a limit value. According to the limit detection system of the invention, the plurality of proximity sensors are adopted, and therefore, the wiring workload of a limit detection circuit can be greatly reduced, a wiring process is simplified, and the reliability of the system can be improved.

The invention discloses a building intelligent wireless monitoring system and method. The system comprises an optical monitoring module, a sensor monitoring module, a video monitoring module, a frequency conversion collecting module, a wake-up circuit, a wireless transmission module and a data processing module. According to the invention, the data processing module carries out frequency conversion collecting on the optical monitoring module, the sensor monitoring module and the video monitoring module; three measurement modes are fused in a single point control manner; the control manner can be flexibly set, so as to realize the accurate matching of an on-site construction process; the data analysis accuracy of the monitoring system is improved; wireless data transmission is realized through the wireless transmission module; wiring is reduced when the system is arranged; the integrity of data transmission is ensured through data cache; and the building intelligent wireless monitoring system and method can be widely used in the field of building safety monitoring.

The invention relates to a copper strip horizontal casters automated assembly with high precision, including a pull roll, a bath facing, a shearing PLC, a front roll PLC, a back roll PLC, a pull PLC; also including a man machine conversation screen, an AC servo amplifier, an AC servo motor, a holding furnace PLC; the pull PLC connects to the bath facing, the shearing PLC, the front roll PLC, the back roll PLC by the field bus, the data of the bath facing, the shearing PLC, the front roll PLC, the back roll PLC is reacted on the man machine conversation screen by the man machine conversation screen connecting to the pull PLC; the pull PLC respectively connects to the AC servo amplifier, the holding furnace PLC and the data of the AC servo amplifier, the holding furnace PLC is reacted on the man machine conversation screen by the man machine conversation screen connecting to the pull PLC; the position control drives the pull roll to operate by the PLC locating module via the AC servo amplifier controlling the AC servo motor; the system structure is simple with high reliability; adopting the field bus; the harling engine with high control precision can satisfy request of electric copper strip applied in the horizontal continuous casting process.

The invention, which relates to the illumination control field, discloses a multi-path illumination controlling apparatus using two alternating-current power lines for realizing power supplying and controlling. More particularly, the invention relates to a method and system capable of completing power supplying and communication controlling on multi-path illumination lamps only by using two alternating-current power lines. The whole multi-path illumination system, that is the multi-path illumination controlling apparatus, comprises a switch controller, a plurality of lamp controllers, two power lines and a plurality of lamps. An input terminal of the switch controller of the multi-path illumination controlling apparatus is connected with an alternating-current leading-in point; and an output terminal of the switch controller is connected with the two power lines to carry out line laying. A plurality of lamp controller installing points are arranged at the two power lines; input terminals of all the lamp controllers are connected to the two power lines; and illumination lamps are respectively installed at output terminals of all the lamp controllers. According to the invention, problems of many wires and complex wiring, long installing time, high using difficulty, poor flexibility, complex circuit during communication signal receiving and restoring, and high manufacturing cost can be solved.

The invention discloses a system for monitoring environment of cable trenches of a transformer station. The system mainly comprises a monitoring management server, a local server, a 4G router, a plurality of gateways, and smart covers. The monitoring management server is connected to the 4G router via a 4G network. The local server is connected wiredly to the 4G router. Each smart cover is connected to a gateway via a ZigBee network. Each gateway is connected to the 4G router via the wireless network. The smart covers collect all environmental information of the cable trenches and upload it tothe local server and the monitoring management server through the 4G router. The system for monitoring environment of cable trenches of the transformer station realizes real-time collection and display of environmental data in the cable trenches by using the smart covers and constructs the monitoring management server, the local server, and the smart covers into a complete cable trenches environment monitoring platform by using the wireless ZigBee technology, a WiFi technology, and a sensor technology, so that can monitor the operating environment of the cable trenches in real-time.

The invention discloses a water treatment equipment control box, comprising a weak current box body, a strong current box body and a door plate. The door plate comprises a frame and a glass window. Four sides of the glass window are inlaid at inner sides of the frame. The door plate is mounted at a front side of the weak current box body through utilization of an anti-drop hinge. The strong current box body is mounted at a rear side of the weak current box body through utilization of the anti-drop hinge. An opening of the strong current box body faces one side of the weak current box body. A handle lock locked with the weak current box body is set at a free end of the door plate. A rack locking mechanism locked with the strong current box body is set at the free end of the weak current boxbody. The control box has the beneficial effects that the box body is set into a three-layer structure, so a strong current part and a weak current part are integrated into a case body, field installation is facilitated and wiring workload of a field worker can be greatly reduced; and the strong current part and the weak current part are independently set in two box bodies, so circuit maintenanceof the two parts is greatly facilitated.

The invention provides a full-color adjusting method of an LED lamp and a full-color LED lamp. The full-color LED lamp comprises a drive module and an LED lamp body, wherein the LED lamp body comprises a first LED lamp string, a second LED lamp string, a third LED lamp string and a fourth LED lamp string all connected in parallel and sharing a first input end and a second input end; the first LED lamp string and the second LED lamp string are connected in reverse parallel and have the same conductive voltage value; the third LED lamp string and the fourth LED lamp string are connected in reverse parallel and have the same conductive voltage value; the conductive voltage value of the first LED lamp string is smaller than that of the third LED lamp string; the drive module is connected with the first input end and the second input end respectively to be used for sending an energy pulse signal to the LED lamp body and adjusting the energy intensity of the first LED lamp string, the second LED lamp string, the third LED lamp string and the fourth LED lamp string in one cycle; the luminous colors of the first LED lamp string, the second LED lamp string, the third LED lamp string and the fourth LED lamp string include the following four non-repeat colors: red, green, blue and white. According to the invention, the fire-new adjusting manner is adopted to simplify the wiring.

The invention relates to a signal detection technology, in particular to a synchronous triggering system in distributed type measurement. The synchronous triggering system solves the problems of complex circuit, large wire-distributing workload, poor flexibility of measuring-node distribution, low synchronization accuracy and limited application range in the existing synchronous triggering system. The synchronous triggering system comprises an S / V signal conversion circuit, a numerical control current switch, a current loop, an induction triggering module and distributed type measuring nodes, wherein the signal output end of the S / V signal conversion circuit is connected with the signal input end of the numerical control current switch; the numerical control current switch and the induction triggering module are respectively connected on the current loop in series; and the signal output end of the induction triggering module is connected with the triggering signal input ends of the distributed type measuring nodes. The synchronous triggering system is applicable to transient signal measurement.

The invention discloses an intelligent control device for a garbage pit window-wiping machine. The intelligent control device comprises a power source module, a touch screen, a PLC and a servo amplifier, a track is arranged along an arrangement trajectory of side glass windows of a workshop, a scrubbing trolley traveling along the track is arranged at the bottom of the window-wiping machine, the touch screen is connected with the PLC, the PLC is connected with a servo motor of the scrubbing trolley and an executing mechanism of the window-wiping machine through the servo amplifier, noncontactproximity switches are arranged at the two ends of the track, and inductors for monitoring respective operation states of the scrubbing trolley and the executing mechanism are arranged on the scrubbing trolley and the executing mechanism. By defining joint positions of coordinate axes on the track, the wiping actions of the window-wiping machine at all the joint positions are accurately controlled, thus glass can be accurately wiped, a good wiping effect is realized, and different site demands are met flexibly.

The invention discloses a vehicle-mounted 1,000-kilovolt voltage transformer verifying device. The vehicle-mounted 1,000-kilovolt voltage transformer verifying device comprises a power frequency voltage regulator, and is characterized in that the power frequency voltage regulator is connected with a matching transformer, the output end of the matching transformer is connected with a multi-tap electric reactor in parallel, one end of the multi-tap electric reactor is connected to the ground, the matching transformer is connected with a boosting transformer, the output end of the boosting transformer is connected with a 1,000-kilovolt standard voltage transformer and a 1,000-kiliovlt voltage transformer to be tested in parallel, one end of the boosting transformer is connected to the ground, and the power frequency voltage regulator, the matching transformer, the boosting transformer and the 1,000-kilovolt standard voltage transformer are arranged on a carriage in sequence. The multi-tap electric reactor is utilized for performing compensation on the input side of the boosting transformer, the requirement for the capacity of a field test power source is lowered, the purpose of boosting verifying is achieved, and transportation and field testing are facilitated due to vehicle mounting.

The invention provides a switch cabinet state monitoring and diagnosing method and system. The switch cabinet state monitoring and diagnosing method comprises the following steps that a reference sequence x<0>=[x<1> x<2 > x<3>... x<n>] is determined; data of each monitoring unit collected by a sensor module are obtained; a comparison sequence x=[x<i1> x<i2> x<i3>... x<in>] is determined; the difference delta o(tn) of the reference sequence and the comparison sequence is calculated; the correlation coefficient epsilon o(tn) is calculated; the relevancy gamma i is calculated; the sequence of defect causes of a switch cabinet is ranked; the defect cause ranking first is taken as diagnosis data; and the diagnosis data are displayed. The switch cabinet state monitoring and diagnosing method and system have the beneficial effects that a plurality of monitoring units are arranged on the switch cabinet, a plurality of signals of the switch cabinet can be simultaneously detected, and multidimensional data formed by the signals are comprehensively processed and analyzed to monitor the operation state of the switch cabinet and diagnose the fault defects of the switch cabinet.

The invention discloses a novel and simple clustering selective perforator convenient to assemble. An internal thread I (5) and an internal thread II (6) are arranged on the inner wall of the left endpart of an outer barrel (1); an internal thread A (7) is arranged on the outer wall of the right end part of the outer barrel (1); the perforator further comprises a lower positioning disc component(8) and an upper bearing disc component (9); the lower positioning disc component (8) comprises a lower positioning disc (10) and an ignition module (11); the ignition module (11) comprises a column body (12) and a detonator (13); a blind hole A (14) and a blind hole B (15) are formed in the lower end part of the column body (12); a pin base A (16) and a pin base B (17) are respectively in interference fit with the blind hole A (14) and the blind hole B (15); a spring wire through column (19) is glidingly mounted in a small hole of a stepped hole (18). The perforator has the beneficial effectsthat the structure is simple, the connection workload is reduced, the on-site operation difficulty is reduced, the on-site assembly technology is simplified, and the safety is improved.

The invention relates to a wireless communication technology, a sensor and an embedding technology and particularly relates to a coal-dust concentration detection method based on a wireless sensing network. The wireless communication technology is also developing rapidly nowadays and satisfies different communication demands of people in daily life and enables signal transmission to become significantly convenient and rapid. The coal-dust concentration detection method based on the wireless sensing network combines sensor, wireless communication and embedding technologies and proposes the coal-dust concentration monitoring method based on the wireless sensing network. The method applies a ZigBee technology and uses gateway nodes as the control core of the whole system and has a capability of monitoring underground coal-dust concentration in a real-time manner and has the characteristics of being low in complexity, high in reliability and convenient and quick in data transmission and the like.

The invention relates to the technical field of water refueling, in particular to an LNG fuel water refueling control system. The LNG fuel water refueling control system comprises a refueling controller, an electric control cabinet of a central control room, a signal collecting junction box, an electromagnetic valve control box, a field equipment branch control cabinet and a field signal transmitter junction box, wherein the refueling controller and the electric control cabinet of the central control room are arranged in the central control room; the signal collecting junction box, the electromagnetic valve control box, the field equipment branch control cabinet and the field signal transmitter junction box are arranged in an operating field; relevant parameters of the LNG fuel device arepressure P and temperature T. The control units in the field equipment branch control cabinet are independent, and the field equipment branch control cabinet can be flexibly arranged according to different control demands of the LNG refueling device, so that the LNG fuel water refueling control system can be suitable for ships of more specifications.

The invention relates to an electric power monitoring device, wherein the inner surface of a first casing is provided with a plurality of tube bodies, and the outer side of the top of the first casingis provided with a lead seal snap; the top of the inner side of a second casing is provided with a clamping groove for fixedly positioning a second circuit board, the outer surface of the second casing is provided with a guide groove for mounting a protective cover and equipped with perforations corresponding to the plurality of tube bodies; the top of the protective cover is provided with a leadseal ring and the inner side of the protective cover is provided with guide ribs; a first circuit board and the second circuit boards are electrically connected by a connector and perpendicular to each other. A transformer coil is mounted on the first circuit board, and electrically connected to the first circuit board. The first circuit board is provided with perforations corresponding to the tube bodies. The perforations of the first circuit board and the transformer coil are sequentially sleeved on the corresponding pipe body, the first circuit board is mounted on the inner surface of thefirst casing, and the second circuit board is mounted on the inner side face of the first casing The second casing is fixedly connected with the first casing. The guide ribs are inserted into the guiding groove, and the lead seal ring is fastened to the lead seal snap.

The invention provides a DMX512 data transmission method based on BPLC (Broadband Power Line Communication). The method comprises the step of S1, carrying out caching through utilization of double buffers, specifically, caching and receiving DMX512 data from a DMX512 master console by a sending end BPLC modulator-demodulator through utilization of a double buffer mechanism. According to the method, the condition that a whole bus system crashes due to a node fault and the impedance mismatch problem can be completely solved. According to the BPLC, signal transmission is carried out based on power lines, wiring and maintenance workload of signal lines are further reduced, and the number of nodes is not limited. On the basis of DMX512 data transmission, repeatedly refreshed data packets are detected. For transmission of repeated data parts, through transmission phase locking, phase locking is automatically and repeatedly refreshed. Redundant load is prevented from being retransmitted by abus, load of the bus is effectively mitigated, a half-duplex bandwidth utilization rate is clearly balanced, uplink communication bandwidths are improved, bandwidths are utilized effectively to the greatest extent, transmission is relatively efficient, and relatively high information quantity is transmitted. The method can be applied to a relatively high-speed and real-time DMX512 application scene.