209results about How to "Realize two-way transmission" patented technology

The invention relates to a controller of full-power alternative-direct converter used in wind generation, wherein the alternative-direct converter is formed by network converter and the convert of generator; the used generator is a permanent-magnetic generator; the rotor is in permanent-magnetic structure, without external magnetic activate power supply; two convert loops both uses the PWM converters operating in four quadrants, based on full-control element, which can improve the dynamic response, reduce cost and impact, realize bidirectional transmission of electricity, and realize generating via power factor sine wave current parallel network; and the invention uses improved direct torque technique to control the converter, to confirm the sine wave change of input current at the stator, with quick response, low vibration, torque dynamic control and wide speed adjust range.

The invention belongs to the field of applied superconducting power electronics, and in particular relates to a synchronizing current and voltage decoupling control method of a voltage-source-type unit power factor high-temperature superconducting energy storage system converter. The control method is characterized by comprising the following steps: designing a voltage outer ring control module at a direct-current side and a current inner ring control module at an alternating-current side respectively with respect to a mathematical model of a superconducting energy storage system converter under dq synchronizing rotary coordinates; controlling an 'H'-shaped bidirectional DC-DC (direct-current to direct-current) chopper based on an SPWM (sinusoidal pulse width modulation) technology by adopting a hysteresis loop PI current closed-loop control method in a charge mode and a hysteresis loop PI voltage closed-loop control method in a discharge mode; and finally implementing the synchronizing current and voltage double-fed control method of a voltage-source-type SMES (superconducting energy storage system) converter according to the active current requirement and the current value of a superconducting magnet under the power grid unit power factor. The control method provided by the invention has the advantages of multi-stage current decoupling control, rapid response speed, easy implementation of control algorithm and the like, and the method is especially suitable for the application occasions for improving the electricity energy quality of a power grid and inhibiting the low-frequency oscillation of a power system and the like.

The invention discloses an energy feedback type traction power supply device with a reactive compensation function and a control method thereof. The device comprises a dual-split transformer, two high-power bidirectional converters, a direct-current filter inductor and a central control unit, wherein each vice-side winding of the dual-split transformer is connected with one high-power bidirectional converter; direct-current output sides of the two high-power bidirectional converters are connected in series, and the direct-current filter inductor is connected in series between a direct-current positive output and a direct-current contact network of the first high-power bidirectional converter; and the central control unit is connected mutually with the two high-power bidirectional converters through a controller area network (CAN). In the control method, the hierarchical control is adopted, the central control unit is used for calculating an active current instruction and a reactive current instruction, and the two high-power bidirectional converters perform closed loop control on alternating current of the two high-power bidirectional converters according to the active current instruction and the reactive current instruction. The device not only can meet the requirements of traction power supply and braking energy feedback of subway trains, but also has a reactive compensation function used for improving power factors at incoming wires of master substations.

The present invention discloses an electric converter circuit topological structure and a control method thereof. The circuit topology comprises a full-bridge inverter, a primary side resonance dynamic compensation network, a primary side coil, a secondary coil, a secondary resonance dynamic compensation network, a full-bridge synchronous rectifier and a load. The primary side resonance dynamic compensation network employs a structure of connection in series of a compensation inductor and an adjustable resonance capacitor, the secondary resonance dynamic compensation network employs a structure of connection in series of a coil and the adjustable resonance capacitor, in the conditions that system parameters are changed caused by factors such as different coil coupling coefficients, different loads, the temperatures and device production manufacturing errors, the PWM duty ratio of a capacitive switching switch is regulated to generate continuously changed and adjustable equivalent resonant capacitance to perform dynamic compensation for the resonance network to achieve the soft switch of the full-bridge inverter and minimize the reactive power in the energy transmission of the system so as to maximum the electric energy transmission efficiency of the system and effectively enhance the regulation ability of the system output features in a condition of the constant working frequency of the system.

The invention discloses a circuit topology structure suitable for bidirectional near-field power transmission, which comprises a full-bridge inverter, a primary-side resonant dynamic compensation network, a primary-side coil, a secondary-side coil, a secondary-side resonant dynamic compensation network, a full-bridge synchronous rectification and a load. The invention can realize bidirectional near-field transmission of electric energy, and at different coil coupling coefficients, at different load size and due to temperature, under the condition of system parameter change caused by manufacturing error of device, by adjusting the PWM duty cycle of the capacitor switching switch, the equivalent capacitance of the capacitor switching switch can change continuously to compensate the resonantnetwork dynamically, so as to realize the soft switching of the full-bridge inverter, to minimize the reactive power in the energy transmission of the system, and to maximize the energy transmission efficiency of the system. In addition, due to the symmetry of the circuit structure, it can realize the bidirectional transmission of near-field electric energy, that is, the bidirectional energy flowbetween the power grid and the load, which improves the utilization rate of the system in the smart grid.

The invention discloses a bus-based battery pack equalizer circuit. The bus-based battery pack equalizer circuit comprises N batteries; each battery is connected with a corresponding equalizer circuit and the equalizer circuit is connected to a controller; each battery is connected with one equalizer circuit and each equalizer circuit is connected to one controller; the batteries correspond to the equalizer circuits one to one and the equalizer circuits correspond to the controllers one to one; the controllers are used for controlling the equalizer circuits according to the energy information of the battery pack, and thus realizing two-way flow of energy between the battery module and an energy transmission bus and realizing equalized energy storage of the batteries; the N controllers are connected in parallel to a data bus and the N batteries are connected in parallel to an energy transfer bus; N is greater than or equal to 2.

The invention consists of: TV station signal output device; HFC transmission network; hub and descramble controller; user terminal device. The remote control for single channel output at the mode of signal processing combining channel processing can make scramble / descramble of digital cable TV more efficiency, safety.

The invention relates to a three-phase-to-five-phase double-stage matrix converter based on a Z source, which belongs to the technical field of power electronic converters and aims to overcome the problems that the traditional five-phase voltage source inverter is large in size, low in input side power factor and limited in service life of a frequency converter and causes serious pollutions to power grid harmonic waves and the existing matrix type converter is low in voltage transmission ratio. The matrix converter provided by the invention comprises a double-stage matrix type converter and a Z source network, wherein the double-stage matrix type converter is composed of a rectifier stage circuit and an inverter stage circuit; the Z source network is connected in series between the rectifier stage circuit and the inverter stage circuit; one end of a first capacitor of the Z source network is connected with one end of a first inductor to serve as a first input end; the other end of the first inductor is connected with one end of a second capacitor to serve as a first output end; the other end of the second capacitor is connected with one end of a second inductor to serve as a second input end; and the other end of the second inductor is connected with the other end of the first capacitor to serve as a second output end. The matrix converter provided by the invention is suitable for driving a five-phase motor.

The invention relates to a wireless electromobile charge and discharge system and an operation method thereof, and belongs to electromobile charge and discharge systems. The charge and discharge system comprises a wireless power supply part, a wireless charging pile part and a vehicle-mounted part. The power supply part is mounted underground, and comprises a wireless power supply module and a power supply control module, wherein the wireless power supply module is used for converting electric energy of the electrical network and wirelessly transmitting the electric energy, and the output end of the power supply control module is connected with the wireless power supply module. The wireless charging pile part mainly comprises a wireless electric energy transmitting and receiving relay module and an energy storage module, wherein the wireless electric energy transmitting and receiving relay module is used for relaying the electric energy, and the energy storage module is used for storing electric energy back fed by an electromobile and the electric energy of the electrical network. The vehicle-mounted part mainly comprises an electromagnetic energy transmitting and receiving module which is used for collecting electromagnetic energy and transmitting the electromagnetic energy to a vehicle-mounted battery via a charger. The charging pile part and the vehicle-mounted part respectively include wireless transmitting and receiving modules which are used for wireless data interaction between the charging pile part and the vehicle-mounted part. The wireless electromobile charge and discharge system has the advantages that wireless transmission of electric energy and data as well as reutilization of residual energy of electromobile are realized, the wireless charging pile is flexible to move, and wireless charging has a strong adaptability to outdoor environments.

The invention relates to a fast scanning detecting device of a two-wire system industrial instrument and a detecting method. The detecting method comprises the following steps of: using an HART bus protocol digital communication technology and a multi-channel switching and high-precision data acquisition technology, matching with a special upper computer detecting software and realizing batch scanning detection of the two-wire system instrument, thus simplifying production process, reducing labor intensity and being convenient to removing trouble and maintaining; the system comprises an intelligent instrument digital communication interface part, can carry out digital communication by the bus and the measured instrument, realize two-way transmission of data and carry out testing and primary diagnosis on the intelligent functions of the intelligent instrument; the device has flexible connecting modes, and can automatically configure according to the quantity of the detecting instrument; and the fast scanning detecting device of the two-wire system industrial instrument and the detecting method provide decisions for improving technique and quality, optimize production process of the product and improve the production efficiency.

The invention provides a bi-directional signal adjusting chip of a USB Type-C cable and the USB Type-C cable. The chip comprises a memory, a processor and an adapter driver, and the adapter driver isused for conducting regenerative transmission on a high-speed signal; the memory is used for storing procedure codes, the processor is used for calling the procedure codes, when the procedure codes are executed, and the processor is used for executing the following operations that the data transmission direction of the USB Type-C cable and types supported by the transmission data are judged; the on-off states of all bumpers in the adapter driver are configured according to the data transmission direction and the supported types; the data output direction of the adapter driver is kept to be consistent with the data transmission direction, wherein two buffers having the two opposite directions are configured on each data transmission line in the bi-directional signal adjusting chip. The USBType-C cable can achieve bi-directional transmission.

The present invention relates to an ethernet interface converter. The content is that after a net port receives a TCP / IP data packet, a network controller extracts the data in the TCP / IP data packet, notifies a microcontroller to preserve the data received by the net port to a memorizer, and simultaneously sends the data to a serial port controller, the data is sent to a serial port in a serial communication format, the serial port controller accomplishes the serial data extraction after the serial port receiving the data, and notifies the microcontroller that an effective data is received, the microcontroller preserves the data received by the serial port to the memorizer, simultaneously the data is assembled to be a TCP / IP protocol format to be sent to the network controller, and the network controller converts the data to be network signals to send to the net port. The present invention solves the defaults that the cost of the ethernet interface converter is high, and the ethernet interface converter cannot be matched with a field equipment converter with a serial port and a net port. The present invention has the advantages that the cost is low, the present invention can make a real-time monitoring to the running status of the field equipment, and a computer can perform statistical analysis through the data exchange with the field equipment, thus the efficiency is high.

The invention discloses a real-time audio data transmission method which is used for transmitting audio data between two terminal devices. The method of the invention includes that the audio data collected by one terminal device at one end are separately encapsulated; the encapsulated audio data are transmitted to a real-time transmission protocol stack; after being received and processed by the real time transmission protocol stack, the audio data are transmitted to the terminal device at the other end after being separately encapsulated again. The real-time audio data transmission method of the invention can separately process the data transmitted by the audio device and the data received by the audio device, thus better administrating the open and close operation of the audio device and a network interface; furthermore, conveniently finding out the causes of faults when problems occur during the data transmission.

The invention relates to a low-ripple-wave lithium battery charging and discharging achieving method. By means of the method, lithium batteries are charged and discharged by a two-way switch power source, a power circuit of the switch power source is a two-way half-bridge / synchronous current doubler rectifier two-way direct-current / direct-current inverter, and a control circuit adopts inductance charging charge control and adopts a double PI adjuster and a diode automatic selection circuit so as to achieve constant-current charging, constant-voltage charging and constant-current discharging on the lithium batteries and achieve automatic smooth switching from constant-current charging to constant-voltage charging states. By means of the low-ripple-wave lithium battery charging and discharging achieving method, charging and discharging on ultra low ripple waves of the lithium batteries can be achieved by using filtering total inductance current iL as the control object.

The invention relates to Internet of things-based intelligent high-voltage switch cabinet. The Internet of things-based intelligent high-voltage switch cabinet comprises a high-voltage switch cabinet, and is characterized by comprising a sensor module, a radio frequency identification (RFID) module, a control mechanism, an on-site monitoring unit and an intelligent processing unit. In the Internet of things-based intelligent high-voltage switch cabinet, the conventional high-voltage switch cabinet is designed, so that the high-voltage switch cabinet is combined with intelligent unit; therefore, the intelligence of the high-voltage switch cabinet is realized in the true sense. The Internet of things-based intelligent high-voltage switch cabinet not only has the functions of the conventional high-voltage switch cabinet, but also has the functions of self-monitoring, self-diagnosis, self-action and the like.

The invention discloses a V2G (vehicle-to-grid) wireless bidirectional power transmission device based on a low-frequency PWM rectifier. The V2G wireless bidirectional power transmission device comprises a filtering and voltage-stabilizing capacitor, a first power switch, a second power switch, a third power switch, a fourth power switch, a first compensation capacitor, a first current sampling circuit, a first coupling coil, a second coupling coil, a second compensation capacitor, a fifth power switch, a sixth power switch, a seventh power switch, an eighth power switch, a second current sampling circuit, a load resistor, an inductive voltage detection coil, a signal acquisition and conditioning circuit, a digital-analog converter, a microprocessor and an electric power converter drive circuit. The V2G wireless bidirectional power transmission device has the advantages that wireless bidirectional power transmission is achieved, accurate measurement of inductive voltage of the coupling coils is guaranteed to meet system resonance requirements, and direct-current voltage with amplitude values changing as required are arranged at ports of a power supply side and a load side, so that power switch loss and device operating frequency are both reduced, and transmission efficiency and power are improved.

The invention discloses a high speed rotary platform device based on a fiber rotation connecting device. The device is provided with a base which is sequentially provided with a round inductosyn, a T-shaped fine hollow main shaft and a rotary working platform. The T-shaped fine hollow main shaft is internally provided with a connecting shaft and the lower end of the connecting shaft is provided with a regular hexagon skirt. A third bearing, an electric slide ring and a second bearing are arranged between the outer side of the connecting shaft and the inner side of the T-shaped fine hollow main shaft. The upper end of the connecting shaft is provided with a connecting shaft fixing hole and a connecting shaft groove. The connecting shaft groove is internally provided with the fiber rotation connecting device. A first bearing is arranged between the outer side of the T-shaped fine hollow main shaft and the base. The base is provided with a servo motor which is connected with the T-shaped fine hollow main shaft by a gear set. The base and the rotary working platform are provided with a base photoelectric-electrolight switch module and a rotary platform photoelectric-electrolight switch module. The invention ensures the stability and precision of the system under a situation that the rotary platform rotates at high speed and has the advantages of simple system structure, small yawp inference on a signal access, large bandwidth and small signal attenuation.

The invention discloses an on-screen interacting system and a control method thereof. The system comprises a handheld terminal and a fixed terminal in communication connection with the handheld terminal. The fixed terminal comprises a first control chip, a first display screen and a touch screen, wherein the first control chip is used for processing information, the first display screen is connected with the first control chip, and the touch screen is connected with the first control chip and used for transmitting touch signals to the first control chip. A second control chip, a second display screen and an input device are arranged on the handheld terminal, the second control chip is in communication connection with the first control chip, the second display screen is connected with the second control chip, and the input device is connected with the second control chip. Two-way transmission and two-way control of the handheld terminal and the fixed terminal can be realized, and use requirements of users are met.

The invention discloses an isolation gateway, which comprises identity authentication modules A and B and data acquisition modules A and B, wherein the identity authentication module A and the data acquisition module A are used for connecting with a network A; and the identity authentication module B and the data acquisition module B are used for connecting with a network B. In the process of transmitting information to the network B from the network A, the information is required to be transmitted from the identity authentication module A to the data acquisition module B, and a transmission path from the identity authentication module A to the data acquisition module B is unidirectional and irreversible. In the process of transmitting the information from the network B to the network A, the information is required to be transmitted from the identity authentication module B to the data acquisition module A, and the transmission path from the identity authentication module B to the data acquisition module A is unidirectional and irreversible. The isolation gateway has the advantages of (1) realizing bidirectional transmission, (2) reducing the probability of intercepting all bidirectionally transmitted data, (3) increasing the bidirectional transmission bandwidth of the isolation gateway with relatively lower cost, and (4) preventing connection between an internal network and an external network from being directly established in a way of bypassing the gateway and avoiding the influence of the increasing of the transmission bandwidth of the gateway on security.

The invention discloses an intelligent information management device, method and system. The intelligent information management device comprises a wired interface module, which comprises a plurality of wired communication interfaces and wireless communication interfaces. The main control module is used for receiving the control instruction of the host computer and converting the control instruction into a corresponding control signal. Or converting the parameter acquisition signal, the data acquisition signal output by the front-end equipment and the data acquisition signal output by the external communication equipment into a corresponding data signal, and outputting the data signal to the storage module; The data processing module is used for outputting the data signal stored in the storage component module to the storage component module after data processing when the control signal is received, so as to be obtained by the main control module and outputted through the correspondingwired interface and / or wireless interface. The invention solves the problem that only a single communication interface can be adopted between the intelligent signal management device and the front-endequipment, the upper computer and the terminal equipment, and the system adaptability is poor.

The invention discloses an automatic metering device for distribution transformers, in particular to an automatic metering device arranged inside a distribution transformer, belonging to local or remote power distribution management system field. The invention comprises a voltage transformer, a current transformer, a high voltage capacitive divider, a suspension type power supply unit, a metering unit, a monitoring unit for distribution transform parameters, and a wireless transmission unit. The invention has the advantages that a primary side of the distribution transformer can be metered; as the invention can simultaneously meter the secondary side of the distribution transformer, thus the distribution transformer loss of system can be calculated, the monitoring management level of distribution then can be improved obviously, and the invention can also apply in remote distribution management systems conveniently.

The invention discloses a method for realizing power information composite transmission in a laser wireless energy transmission system, and belongs to the technical field of electric communication. According to the method, to-be-transmitted data is coded and modulated to obtain a binary signal frame enabling the power of a bidirectional converter to be balanced; the laser receiving end is controlled by comparing the average value of each pulse period of the photovoltaic array output current of the laser receiving end with the total average value of one signal frame; and the modulation reflex reflector arranged at the laser receiving end modulates part of the main light beam entering the receiving end into pulsed light under the control of the controllable level signal, so that modulation and emission of a signal at the receiving end are realized, and power one-way transmission and signal two-way transmission of the whole system are further realized.

The invention discloses an intelligent protection type permanent magnetic contactor capable of performing remote communication. The contactor comprises a rectification filtering circuit, a control module, a coil, and an energy storage capacitor which are sequentially connected with an alternating current power supply; a power module is connected with a microprocessor, an acquisition chip processing module, a liquid crystal display operation module, a switching value input circuit and a communication module respectively; the microprocessor is connected with the acquisition chip processing module, the liquid crystal display operation module, the switching value input circuit and the control module respectively; at the same time, the microprocessor is connected with a communication interface output circuit through a communication protocol chip, a first photoelectronic isolation bus driver and a second photoelectronic isolation bus driver respectively; the communication interface output circuit is connected with a field bus circuit; and the acquisition chip processing module is connected with a main circuit three-phase voltage acquisition processing circuit, a main circuit three-phase current acquisition processing circuit and a zero sequence current acquisition processing circuit. The permanent magnetic contactor realizes the intellectualization function of integrating the measurement, setting, protection, communication and control.

The invention relates to a method of accessing a positioner into a base station and a communication method of the positioner with the base stations. The method specifically comprises the following steps: 1, each base station broadcasts a synchronization head outward in each channel; 2, the positioner takes the base station as the current base station, wherein the beacon with the strongest signal around belongs to the base station, and then a channel is selected randomly; 3, the positioner receives the synchronization head broadcasted by the base station to judge whether an idle time slot is available or not; if the idle time slot is not available, the step 5 is implemented; 4, the positioner is accessed to the base station, and the step 6 is implemented; 5, the positioner re-selects a different channel, the step 3 is implemented; 6, if the positioner cannot send data to the base station, the step 3 is implemented; if so, the data is sent; and 7, if the positioner does not have data tobe sent, the process is ended; if so, and the previous Q beacons with the strongest signals around the positioner belong to a new base station, the positioner is switched to the base station, the step3 is implemented, otherwise, the step 6 is implemented. The data size of communication of the base stations is increased, the utilization ratio of the base stations is improved and the data transmission speed among the positioners is increased.

Provided is a cross-safety-subarea automatic electric-power control and monitoring system and method. The cross-safety-subarea automatic electric-power control and monitoring system comprises a safety area I monitoring server, a safety area I switch, a one-way forward isolation device special for electric power, a one-way reverse isolation device special for electric power, a safety area III monitoring server and a safety area III switch. A safety area III monitoring server is provided with a device configuration and control program, generates a query or control command file CMD. TXT to be stored in a folder CMD3 through the configuration and control program, the one-way reverse isolation device special for electric power timely scans the folder CMD3, converts a new file into an encrypted binary data flow and then transmits the encrypted binary data flow to the safety area I monitoring server when finding the appeared new file. The safety area I monitoring server reads the binary data flow transmitted from the one-way reverse isolation device special for electric power, performs decryption to form the file CMD. TX and stores the file CMD. TX in a folder CMD1.

The invention discloses a full high-definition video meeting system, which comprises a main meeting place and a plurality of branch meeting places. The main meeting place comprises a data acquisition module, a data processing module and a high-definition video meeting terminal; each branch meeting place is provided with a high-definition video meeting terminal; the data acquisition module comprises an audio acquisition unit and a video acquisition unit; the video acquisition unit is a high-definition network camera, and is used for acquiring high-definition images in real time and compressing the high-definition images into a video data stream suitable for network transmission; a multi-point control unit is adopted by the data processing module; audio / video data are transmitted by adopting an MSTP (multi-service transfer platform) line; each terminal comprises a terminal receiving module, a terminal sending module, a terminal processor and a terminal playing module; each terminal playing module is connected with a terminal high-definition displayer; terminal processors of the branch meeting places are used for processing signals transmitted from the main meeting place. The 1080P technical standard is adopted by the meeting system disclosed by the invention during the whole process, and therefore, a 1080P full high-definition connection is kept in the whole link from signal source input to signal display.

The invention relates to a communication method based on frequency division and time division in a positioning system. The communication method comprises the steps as follows: 1, at least two channelsare set in a positioning base station; 2, a positioner randomly selects one channel; 3, the positioner receives a synchronous head broadcasted by a positioning base station, and judges whether a timeslot in an idle state exists according to an indicator in the synchronous head; and the step 5 is executed, if a judgment result is no; 4, the positioner randomly selects one idle time slot to send an access request to the positioning base station, after receiving the access request, the positioning base station judges whether the request accords with the actual situation; and the step 3 is executed, if the request is not accordant with the actual situation; a network access warrant is sent to the positioner in the corresponding time slot, after receiving the network access warrant, the positioner completes access work, and occupies the corresponding time slot to send positioning data to the positioning base station, and the process ends; and 5, the positioner reselects one channel whichis different from the current channel, and the step 3 is executed. According to the method provided by the invention, the data size of communication of the positioning base station is increased, and the utilization rate of the positioning base station and the data transmission rate of the positioner are improved.

In a provided information processing device, a first information processing module, within its transmission time segment, transmits an encoded signal in which mutually distinct first and second bit values are respectively expressed by pluralities of mutually distinct first amplitude values and second amplitude values, the same amplitude value not occurring consecutively and the amplitude value polarity being inverted with each cycle. Within a transmission time segment for a second information processing module, the first information processing module transmits a clock signal that corresponds to the cycle at which the polarity is inverted. The second information processing module extracts the clock signal by detecting the polarity inversions in the encoded signal, decodes the first and second bit values from the encoded signal using the clock signal, generates a transmission signal by controlling the amplitude values of the clock signal, and transmits the transmission signal in synchronization with the clock signal.

The invention discloses a remote monitoring system based on GPRS transmission and an operating method, the system including an underlying control module, a transmission module, a local on-site monitor, a remote wireless monitor and an Android mobile phone client. The underlying control module consists of several parameter real-time monitoring modules, and a water quality control module, a water quality parameter monitoring module, a signal conditioning circuit and an MSP430 single-chip microcomputer are disposed in each parameter real-time monitoring module; the transmission module is a GPRS transmission module; the local on-site monitor is an LCD controlled by the MSP430 single-chip microcomputer; the remote wireless monitor is an upper computer equipped with monitoring software programmed by use of a VB language; and the Android mobile phone client is a mobile phone with monitoring software. The system can achieve wireless reception of water quality parameters and wireless transmission of control commands on the mobile phone and the upper computer via Internet and GPRS wireless networks, and negative factors of wired networks, such as high laying cost of lines, complex wiring and the like are avoided.

The invention relates to an automatic line remote monitoring system and method based on an industrial cloud APP, and belongs to the hydraulic machine automation line technical field. The system comprises an equipment layer which comprises the information acquisition networks distributed all over the world, wherein each information acquisition network comprises a plurality of sensors and a controller which are used for detecting the states of all parts of a hydraulic machine; and is characterized by also at least comprising an application layer used for receiving the detection information of the equipment layer and analyzing and diagnosing the working state of the hydraulic press according to the detection information, wherein the application layer comprises a data storage module, a platform module and a service module; a transmission layer which is used for realizing the data interaction between the equipment layer and the application layer, wherein the data storage module comprises areal-time data unit and a streaming media data unit, the transmission layer is composed of a VPN network, a 3G network and a 4G network, and the sensor and / or the controller carries out data interaction with the data storage module through the transmission layer.