2811results about How to "Lower control costs" patented technology

The invention provides a PCB apparent defect automatic detection system and method based on an image and aims at solving the problems that detection efficiency is low and misjudgment rate is high. The method comprises the following steps: firstly transmitting a to-be-detected PCB to a specified position by virtue of a motion control unit; acquiring an image of the to-be-detected PCB by utilizing image acquisition equipment such as an image acquisition card and an industrial camera; then sequentially carrying out a series of operation such as image preprocessing, PCB defect detection and PCB defect identification and classification on the acquired image, so that PCB defect automatic detection is completed; and finally realizing real-time automatic sorting of an unqualified PCB and timely reporting a defect position and a defect analysis result to an operator. The system and method which are provided by the invention can automatically detect the PCB defect and identify the defect type to a great extent, and false detection rate is reduced, so that enterprise cost is reduced, and the system and method which are provided by the invention have stronger practicability.

The invention relates to the field of flexible robots, and discloses a flexible charging robot based on rope driving. The flexible charging robot comprises a plurality of control ropes, a rope driving device, a flexible mechanical arm and an end executor; the control ropes can be driven by the rope driving device to telescope to drive the flexible mechanical arm to bend, and then the end executor installed at the tail end of the flexible mechanical arm is driven to move. According to the flexible charging robot based on rope driving, the charging robot is formed by combining the flexible mechanical arm with a charging head, can adapt to a garage environment which has a narrow working space and many obstacles by combining free bending motion of the flexible mechanical arm and is small in size, low in weight, flexible to move and low in control cost; meanwhile, a motor and a control circuit are far away from the end executor, therefore, the flexible charging robot is not liable to be affected by an outside environment, and the service life of the robot can be guaranteed.

The invention provides a pitted-surface metal and rubber composite conductive particle, which is formed by adhering a metal surface layer to a rubber basic body or slitting after adhesion, wherein the metal surface layer is a pitted surface and has pits or bumps or both the pits and the bumps; the pits or the bumps are formed on an external surface of the metal surface layer or an internal surface or both the external surface and the internal surface; the depths of the pits are smaller than the thickness of the metal surface layer; the heights of the bumps are greater than or equal to one tenth of the thickness of the metal surface layer; the metal surface layer is made of metal or alloy; gold, silver, copper or nickel can be coated on the external surface of the metal surface layer; the rubber basic body is made of silicon rubber or polyurethane rubber; an adhesion layer can be arranged between the metal surface layer and the rubber basic body; the adhesion layer is made of a heat vulcanization adhesive, a prime coating agent or a material which is the same as that of the rubber basic body; and aids such as a coupling agent can be coated on the internal surface of the metal surface layer. The metal surface layer is high in strength, stable in conductivity, high in strength of the adhesion layer and high in elasticity of the rubber basic body; and the pitted-surface metal and rubber composite conductive particles can serve as conductive parts of various kinds of keys of a mobile phone, an automobile and the like, and the cost can be controlled.

The invention provides a distributed multi-sensor mobile robot system, which comprises an upper-layer control part constructed by a duel-core processor in digital media SOC DMSoC and a customized embedded system framework, a bottom-layer control part consisting of a plurality of DSP units. Various units of the upper-layer control part and the bottom-layer control part are connected through a bus to form a distributed control network and realize parallel processing of functional units of a robot. In the system, the upper-layer control part is constructed by high-performance special DMSoC processor and the customized embedded system framework, the bottom-layer control part consists of the plurality of DSP units, and the various units can realize parallel processing and achieve local networkcommunications through the high-speed reliable CAN bus. The system has high-speed data processing capacity and real-time data communication capacity, reduces the size of a mobile robot platform, costand power consumption of the system, improves the extensibility and facilitates the application extending of the mobile robot.

The invention discloses a stereoscopic three-dimensional display based on multi-screen splicing. The stereoscopic three-dimensional display comprises a two-dimensional display array, a projection lens array, an aperture array and a directional scattering screen. By utilizing a two-dimensional display pixel region segmentation mode and ensuring each display region of the display array to form a projector together with an aperture and a projection lens which is directly in front of the region, all projectors are staggered in vertical direction and project the images corresponding to the display regions to a same position on the directional scattering screen so as to form an image in front of an arc-shaped screen; and the images displayed in each display region are spliced by the images of a three-dimensional object from different visual angles according to a specific segmentation and recombination method. The stereoscopic three-dimensional display provided by the invention has the advantages of achieving high image resolution and high visual angle resolution and realizing observation of an exquisite three-dimensional image with a horizontal parallax. Compared with the single naked-eye display, stereoscopic three-dimensional display provided by the invention has the advantages that the multi-screen splicing settings ensures that the extension of visual angles is realized, and the spatial scale and viewing range of the three-dimensional images are increased.

The invention discloses a method and system for conducting long-range control on an intelligent terminal device. The method comprises steps of A detecting a local area network and judging whether detected local area network information comprises target local area network information or not, on yes judgment, conducting a step B, and on no judgment, conducting a step C; B conducting login authentication according to the target local area network information, then sending device control information to the intelligent terminal device through the local area network to control the intelligent terminal device; and C detecting a wide area network, logging in the wide area network to be detected, and conducting authentication, and sending device control information to the intelligent terminal device through the wide area network to control the intelligent terminal device. By means of the method and system, long-range control efficiency can be improved, and long-range control cost is reduced.

A two-stage insulated bidirectional DC / DC power converter is disclosed. A two-stage insulated bidirectional DC / DC power converter according to an embodiment of the invention has the characteristic of including: an LLC resonant converter operating at a constant duty ratio; a bidirectional converter joined to a front part of the LLC resonant converter and configured to perform a booster converter function of outputting the input voltage at a consistent input voltage for the LLC resonant converter, and a buck converter function of reducing the voltage by way of the LLC resonant converter and then outputting a consistent voltage; and a bidirectional converter control unit configured to control changes in an input voltage of the bidirectional converter and regulate an output voltage of the LLC resonant converter to thereby maintain a consistent input voltage of the LLC resonant converter, such that the LLC resonant converter operates at a constant duty ratio.

The invention relates to a method for preparing an edible fungus health-care product. The method comprises the following steps of: (A), inoculating edible fungus strains into a culture solution, and performing shake culture on a shaker to obtain strain liquid; (B), inoculating the strain liquid obtained in the step A into a liquid culture medium containing barley malt and soybeans, and performing aerobic culture or anaerobic culture to obtain fermented edible fungus mycelia and edible fungus fermentation liquor; (C), crushing cell tissues of the edible fungus mycelia obtained in the step (B), and extracting by using water to obtain a mycelium extracting solution; and (D), mixing the edible fungus fermentation liquor obtained in the step (B) and the edible fungus mycelium extracting solution obtained in the step (C), and diluting or concentrating a mixed solution to obtain the edible fungus health-care product. Due to the adoption of an industrial liquid submerged fermentation technology of edible fungi, a large number of edible fungus strains can be propagated in the liquid culture medium; and the preparation method is simple in process, stable in quality and low in cost.

The invention discloses a method for preparing a wear-resisting super-hydrophobic coating through a cold spraying technology and a product of the method. The method comprises the following steps that firstly, the surface of a base body is roughened; secondly, sprayed powder is modified with low-surface-energy matter; and thirdly, the wear-resisting super-hydrophobic coating is prepared on the surface of the base body through the cold spraying technology. The static contact angle of the coating prepared through the method can be 150-180 degrees, the rolling angle of the coating is smaller than 10 degrees, and good super-hydrophobicity is achieved. According to the method, the product of a non-stick pan is prepared and has good wear resistance and non-stick performance, and compared with non-stick pans in the market, the product is more resistant to wear and has the great competitive potential in the field. In addition, the method can be used for preparing different wear-resisting super-hydrophobic coatings based on different base materials (such as metal, ceramic, glass and plastic), and the application range is wide.

The invention discloses a lithium ion phosphate positive electrode material of a nanometer core shell structure. The positive electrode material is provided with an inner core active material and a conductive outer shell structure; a conductive agent is an outer shell material; the active material is of an inner core structure; and the structure formula of the inner core active material is LiFe[1-x]MxP[1-y]AyO4, wherein x is greater than or equal to 0, y is less than or equal to 0.1, M is a transition metal element, and A is silicon. Additionally, the invention also discloses a preparation method of the lithium ion phosphate positive electrode material. According to the preparation method in the invention, a porous material is adopted as a synthesis microreactor, and a lithium ion phosphate precursor is loaded and filled in holes, namely, the inner core active precursor reversely wraps a porous precursor so as to form a special nanometer core shell structure, thus the topography granularity of primary granule is controlled; and the lithium ion phosphate positive electrode material of the nanometer core shell structure is prepared by adopting a liquid phase mixed material and solid phase sintering technology. According to the invention, on the premise that the electrical performance of the positive electrode material is not influenced, a nanometer core shell structured active substance with uniform and controllable topography and granularity is synthesized; and the preparation method disclosed by the invention has lower technology, devices and control costs, which is beneficial to large-scale production.

The invention relates to a gymnasium body-building movement identification method and device based on depth learning, takes real-time videos as media and employs a method based on depth learning to carry out movement normalization identification. The method comprises steps that (1), data acquisition, normative movements are recorded as normative movement images; (2), data annotation, normative movement classification of the normative movement images is carried out; (3), data training, an object detection identification framework based on the convolutional neural network of the depth learning method Caffe is employed to acquire a normative movement identification model; (4), movement identification, user shooting is carried out, user movements in line with normative movement classificationof the normative movement identification model are identified; and (5), movement scoring, normative similarity scores and correction plans are outputted. The method is advantaged in that a user has noneed to wear or replace expensive equipment, cost is controllable, videos which are popular in intelligent terminals at present and are convenient to use are taken as media, precise movement data isgenerated for the user, false movements are corrected, and the better body-building effect is realized.

The invention discloses a control system of a fuel cell vehicle. The control system includes a fuel cell engine, a DC / DC converter, a fuel cell manager for controlling the fuel cell engine and the DC / DC converter, a power battery, a battery manager for controlling the power battery, a mode selection switch, a motor and a motor controller; a vehicle controller is connected with the fuel cell manager, the battery manager and the motor controller respectively; the vehicle controller determines the working mode of the fuel cell engine according to the fault state of the fuel cell vehicle, the charge value of the power battery and the state of the mode selection switch, and controls the fuel cell manager according to the working mode. With the control system of the fuel cell vehicle of the invention adopted, vehicle energy distribution can be optimized, and the efficiency of a fuel cell system and the power battery can be improved, and the fuel cell system can be effectively protected, and a vehicle control algorithm can be simplified, and the control algorithm is reliable and effective. The invention also discloses a fuel cell vehicle and a control method of the fuel cell vehicle.

This invention provides a basin excavation inverse method. Its major construction step is the open excavation in retaining structure edge at the first step , and digs a kind of pot-style structure, and pour the top layer concrete of underground structure, and provides dug holes; then excavates in another way, it is a pot of architecture, and pours the top structure concrete of the underground two-story, and allows dug holes; following mining, and pouring the top three underground structure plate and the top four floors underground structure ; the bottom of base plate structure is divided into two parts ;it excavates scope of the bottom floor firstly, the pit digs to the bottom, pouring concrete, then the envelope around 6 ~ 10 meters pumps the excavation. This construction method is suitable for the large pit area, depth deeper large-scale construction projects, as it constructs conveniently, saves manpower and resources to improve the progress of the project, and shortens the construction periods.

The invention provides a fuel cell and lithium ion battery hybrid system, which comprises a fuel cell subsystem, a lithium ion battery subsystem, a charge control subsystem, an intelligent hybrid power management system, a motor and a motor control system. A fuel cell serves as a main operation power source while a lithium ion battery serves as an auxiliary power source. The problems that the fuel cell of the pure fuel cell automobile is short in service life and the energy is unrecyclable can be solved, and the problems of long charge time, potential burning and explosion in continuous high-current discharge, attenuation and self discharge of the pure lithium ion battery electric vehicle are also solved. Service lives of the fuel cell and the lithium ion battery are effectively prolonged, the cost of the power system is reduced, reliability and safety are improved, energy recovery is realized, and accordingly the fuel cell and lithium ion battery hybrid system is an excellent solution to the power source problem of electric vehicles.

The invention relates to an electric mechanical extension device for a movable sofa. The electric mechanical extension device is mainly suitable for movable sofas, particularly electric rocking chairs and swinging chairs. The electric mechanical extension device for the movable sofa comprises a mechanical extension device and an electric device, wherein the electric device consists of a motor, a front motor connecting pipe, a back motor connecting pipe, a motor head mounting piece, a motor motion slide block, a slide block mounting piece, a rotating connecting piece and a rotating bent piece; the front motor connecting pipe is connected with a leg connecting piece; the motor head mounting piece is connected with the front motor connecting pipe, and is rotationally connected with the motor; the motor motion slide block is arranged on a motor slide rail; the sliding mounting piece is fixed on the back motor connecting pipe, and is rotationally connected with the motor motion slide block; the back motor connecting pipe is connected with the rotating bent piece; the rotating bent piece is rotationally connected with an ascending connecting piece; the rotating connecting piece is rotationally connected with the rotating bent piece and a mounting plate. The electric mechanical extension device is simple in structure, safe and reliable for driving, high in efficiency, low in cost and high in comfort.

A battery operated controller for a door operator includes a keypad backlit by a light emitting diode operably connected to a microcontroller which also controls operation of the controller. The microcontroller periodically measures ambient light as sensed by the light emitting diode and when a voltage level related to a predetermined light intensity decreases below a predetermined level the light emitting diode is energized to provide backlighting for the controller keypad. The intensity of backlighting may be varied in accordance with the amount of ambient light illuminating the keypad and above a certain intensity of ambient light the light emitting diode is de-energized to conserve battery power.

The embodiment of the invention provides a gray scale issuing control method which comprises the steps that a first server receives a first service using request sent by a user terminal, and parameter information in the first service using request is extracted; according to the parameter information and preset gray scale configuration information, whether the user terminal is allowed to use first service is judged; if yes, first service is provided for the user terminal; and otherwise, the user terminal is informed to send a second service using request to a second server, and first service and second service provide different service contents corresponding to the same service respectively. In addition, the embodiment of the invention further provides a gray scale issuing control device and system. Gray scale issuing control flexibility can be effectively improved, and the control cost of gray scale issuing is lowered.

The invention provides a wing sail which comprises a mast main body, a sail face and at least one telescopic mast. The telescopic mast can move up and down along the mast main body. The sail face is supported by an upper framework and a lower framework, the upper framework of the sail face is fixedly connected with the telescopic mast, and the lower framework of the sail face is fixedly connected with the mast main body. The invention also provides a ship with the wing sail, which comprises an engine and an engine speed regulating device. The ship also comprises a detection device for detecting signals of wind velocity and wind direction, a revolution speed transducer for acquiring the actual revolution speed signals of the engine and a central control system. The central control system is used for calculating the sail angle of the wing sail and the revolution speed of the engine according to the wind velocity and wind direction information acquired by the detection device, controlling the rotation of the mast main body of the wing sail to adjust the sail angle of the wing sail and controlling the speed adjustment device to adjust the revolution speed of the engine. The wing sail and the ship with same have the advantages of energy saving and high safety.

The present invention relates to a medicine preparation with raw material comprising gen-seng, RADIX OPHIOPOGONIS and schizan drin and relates to the methods of preparing and quality control of the invention as well as relates to the quality control method of the raw material comprising gen-seng, radix ophiopogonis and schizan drin. The present invention comprises saponins content of gen-seng, amylase content of gen-seng, saponins content of radix ophiopogonis and neolignan content of schizan drin. Each unit dosage of preparation comprises Rg1 and Re for 0.08 mg-12 mg, polysaccharide of gen-seng for 1mg-460mg, general saponins for 5 mg-800 mg and Schisandrin for 0.036mg-6mg. a medicine functioning as cooperation can be or can not be added in the present invention which can be any acceptable medicine preparation type comprising oral taking solid preparation, oral taking semi-solid preparation, oral taking liquid preparation and injection. The present invention also provides the quality control method of gen-seng, RADIX OPHIOPOGONIS and schizan drin as well as the quality control method of the present invention.

The invention provides an intelligent vehicle-mounted communication informatization system based on a 3-generation (3G) technology and a cloud system. The intelligent vehicle-mounted communication informatization system comprises a master control module, a wireless communication module, a positioning module, a sensor module and other functional modules, wherein the master control module comprises an advanced Risc machine (ARM)-based micro controller which is used for coordinatively controlling other modules of the system, and an intelligent embedded operating system; the wireless communication module is a wireless access module for accessing the system to the Internet based on various 3G technologies and is electrically connected with the master control module; the positioning module is a module for supplying a positioning function to the system based on positioning systems, such as a global positioning system (GPS), a beidou positioning system and the like, and is electrically connected with the master control module; the sensor module is a module for supplying a theftproof function based on an ultrasonic sensing technology and is electrically connected with the master control module; and other functional modules are modules for realizing main functions of the system. The invention also provides a communication method applied to the system. The system has the characteristics that: the GPS navigation speed is higher, the cloud system can be widely applied, and the whole vehicle-mounted system is higher in intelligentization level.

The invention discloses a composite linear control method of a hysteresis characteristic of a piezoelectric ceramic actuator and a realization circuit thereof. The composite linear control method comprises a feedforward linear control process and a closed-loop linear control process, wherein in the feedforward linear control process, a built mathematical model of the piezoelectric ceramic actuator is utilized to construct a hysteresis component observer which observes the hysteresis components of the piezoelectric ceramic actuator under the action of control voltages, compensating voltages required by compensating the hysteresis components are calculated, and the compensating voltages and the control voltages are overlapped to obtain actual driving voltages which are acted on the piezoelectric ceramic actuator to generate displacement output; in the closed-loop linear control process, a displacement sensor is utilized to obtain feedforward linear errors and the closed-loop control is utilized to reduce the errors to be zero; and a composite linear controller comprises a control signal generator, an analog to digital converter, a composite linear controller, a digital to analog converter, a power amplifier, the displacement sensor and a signal conditioning circuit. According to the invention, the hysteresis nonlinearity relation between the output displacement of the piezoelectric ceramic actuator and the control voltages can be linearized, thus simplifying a control algorithm of the piezoelectric ceramic actuator greatly and improving the positioning accuracy of the piezoelectric ceramic actuator.

The invention mainly provides an object network access guiding method. The method comprises the following steps: obtaining configuration information of a currently accessed object network; synthesizing the configuration information with preset score information to form an audio file; and playing the audio file to form sound wave signals for propagation so as to broadcast the configuration information. Besides, the invention further provides an object network access method realized based on one side of an intelligent terminal to be accessed to an object network, an access control method, and a mobile phone terminal and an intelligent terminal correspondingly applying these methods. According to the invention, the mode of transmitting the configuration information of the accessed object network via the sound wave signals is taken as a technical core, a more reliable and improved transmission link is enabled to be established between a control end and a device to be accessed, and the intelligent terminal to be accessed to the object network can be more effectively accessed to the object network.

The invention discloses an on-line coordination control method for the plate shape and plate thickness of a strip tandem hot continuous rolling mill, belonging to the technical filed of hot continuous rolling of sheets and strips. The method is characterized by comprising the following steps: (1) collecting n rack hot continuous rolling mill equipment and rolling schedule parameters; (2) collecting the roll force and the convexity offset value of a last rack plate in situ; (3) calculating the plate shape stiffness of each rack; (4) keeping the thickness of the outlet of the tail rack to be constant; (5) inversely calculating the convexity variable quantity of the mechanical plate of the i rack from the tail rack; (6) calculating the roll force and the variable quality of the thickness of the inlet of the i rack; (7) calculating the thickness of the new inlet and outlet of the i rack; (8) calculating the rolling reduction and adjusted quantity of the i rack; (9) calculating the convexity variable quantity of the outlet plate of the (i-1) rack according to the equi-proportional convexity condition; (10) repeating steps from (5) to (9) to obtain the rolling reduction and adjusted quantities of 2nd to n racks; (11) calculating the rolling reduction and adjusted quantity of the first rack; and (12) carrying out on-line coordination control according to the rolling reduction and adjusted quantities, thereby achieving the purpose of coordination control on the plate shape and plate thickness.

Disclosed herein are a display device capable of preventing a buyer from arbitrarily switching a demo mode or a function control mode in an exhibition room, and a household appliance including the same. The household appliance includes a main body and a control device provided in the main body to control at least one function of the appliance, and at least one of a first display device electrically connected to the control device to display an operation state of the appliance controlled by the control device and a second display device to perform a demo function of the appliance is selectively mounted.

A video people stream statistics-based fresh air system and an energy-saving control method thereof relate to the technical field of fresh air energy-saving control and aim to reduce the control difficulty and cost and improve the control real-time performance. The fresh air system comprises a video monitoring module, a video people number analysis module, a fresh air control module and a fresh air control execution module. The energy-saving control method of the fresh air system comprises the steps as follows, firstly, the video monitoring module is used for acquiring the video signal of the fresh air control area; secondly, the video people number analysis module is used for analyzing and counting out the amount of the people in the fresh air control area, and sending the result to the fresh air control module; thirdly, the fresh air control module outputs corresponding fresh air control signal to the fresh air control execution module according to the received result; and fourthly, the fresh air control execution module adjusts the fresh air supply quantity according to intensity of the received fresh air control signal. The method reduces the fresh air control difficulty and cost, and has strong control real-time performance.

The invention discloses a manufacture method of an extremely thick ocean engineering steel plate with low compression ratio and super high-strength strain age, which performs reasonable setting and optimization to controlled rolling and controlled cooling technology through converter smelting, LF and RH refining, so as to perform quenched-tempered heat treatment. The steel plate has good performance, the tensile strength is 780 to 850 MPa, the yield strength is 720 to 800 MPa, the percentage of elongation is 18 to 21 percent, the low-temperature transverse impact at minus 40 DEG C is larger than or equal to 120J, the low-temperature aging impact property at minus 40 DEG C is larger than or equal to 100J, the steel plate has ultrahigh strength, high tenacity and excellent low temperature aging tenacity, and the production technology is stable.

The invention discloses an engineering machine and a method for controlling the engineering machine. The engineering machine comprises an engine, a hydraulic pump, a hydraulic actuating mechanism and a control system, wherein the engine can drive the hydraulic pump which can supply high-pressure oil for the hydraulic actuating mechanism, the hydraulic actuating mechanism is used for driving corresponding components, the control system comprises an operating handle and a controller, and the hydraulic pump is a variable hydraulic pump; the controller can acquire the output power of the engine, external load and the adjustment range of the operating handle, and generate control signals according to a predetermined control policy; and the controller can adjust discharge capacity of the variable hydraulic pump through the control signals. The method for controlling the engineering machine comprises the following steps: firstly, acquiring the adjustment range of the operating handle, the external load and the output power of the engine; and secondly, adjusting the discharge capacity of the variable hydraulic pump according to actual working conditions. The engineering machine and the method for controlling the engineering machine can make load torque formed by the hydraulic pump matched with output torque of the engine.

The invention discloses a low-altitude target detecting system of a three-coordinate continuous wave one-dimensional phase sweeping unmanned aerial vehicle, and is aimed at providing a detecting device high in data detecting rate and anti-interference capacity. By means of the technical scheme, the system measures a target distance through a frequency modulation continuous wave ranging system, anantenna feedback subsystem converts radio frequency signals into electromagnetic wave signals to be radiated to the space, a receiving subsystem conducts amplifying, frequency varying and SFC controlprocessing on echo signals output by an emission and wave control subsystem, a signal processing subsystem generates the working time sequence of the whole system, measures the three-coordinate vectors of the distance, direction and pitching of a target position and calculates frequency modulation continuous wave ranging data of target signals, and a data processing and communication control subsystem parses the target angle, establishes the trajectory of target movement, controls the working mode of a radar and detects three-coordinate target information according to the target signals calculated by the signal processing subsystem and the antenna angle information output by the antenna control subsystem.

The invention relates to a kind of hot-wind desiccation controlling system. It includes a sensor group(1), a water sensor of the material(2), a transducer(3), a impedance transducer(4), a controller(6),a converter(9),a blowdown device(10) and a superior computer(13). The output signal of the sensor group(1) and the water sensor of the material(2) connect with the input end of the controller(6) individually through the transducer(3) and the impedance transducer(4). The input and the output interface of the controller (6) and the output and the input interface of the superior computer (13) realize the two-direction communication through the communication interface. The output interface of the controller (6) connects with the blowdown device (10) of the hot-wind desiccation chamber through the converter (9). The input quantity and the change rule of the system is not predefined but determined real time by the superior computer according to the online measuring value. It can save the energy loss, increase the desiccation efficiency and security and improve the hot-wind desiccation quality farthest as the character of the material in desiccation.

The invention relates to an intelligent control device for inspection and maintenance of automobile, which belongs to a technical field of communication and artificial intelligence. The intelligent control device for inspection and maintenance of the automobile comprises a vehicle-mounted unit connected with a motor control network which is connected with a monitoring service system of a motor repair center (comprising a communication gateway) in a wireless way by a GSM network. The vehicle-mounted unit is arranged on the controlled automobile and is communicated with the monitoring service system through the GSM network; the communication gateway takes charge of the wireless communication of the vehicle-mounted unit and the monitoring service system; the monitoring service system is the core of the system, which can carry out human-computer interaction, intelligent fault diagnosis, remote control, etc. The device has the advantages of carrying out failure warning, maintenance suggestion, remote control, fault diagnosis, etc., thus providing various fast, convenient and more humanized services for users.