653results about How to "Does not affect traffic" patented technology

The invention relates to a vehicle type recognition method based on a CNN and domain adaptive learning. The method comprises steps of: establishing a CNN-based initial model by adding a rotation-invariant layer in an Alexnet network, distinguishing a discriminant layer and designing a new objective function; separately extracting the feature maps of different-domain sample convolution layers by using the established initial model, calculating the cosine similarity between the sample feature maps, determining the shared convolution kernel or the non-shared convolution kernel of the CNN, retaining the weight and the offset of the shared convolution kernel, and updating the weight and the offset of the non-shared convolution kernel; based on a target-domain training sample, calculating the cosine similarity between respective feature map layers and the average similarity of the entire target domain, and clustering each type of similar feature maps according to the average similarity; expanding source-domain samples with similar distribution characteristics in the target domain to new samples in the target domain, adjusting the entire CNN model by using the new samples in the target domain, and then using a softmax classifier to classify the vehicle types of the test samples in the target domain.

The invention relates to a method for obtaining a longitudinal profile pattern of a mobile vehicle and a device thereof. A transmitter transmits at least one group of laser beams and a vertically downward laser beam as a timing reference to an upper surface of a traveling vehicle above a lane at a set height, and each group of transmitting laser beams comprises two parallel beams longitudinally arranged along the lane; a receiver receives reflected light signals from the surface of the vehicle at a set height; a processor computes coordinates of reflecting points on the upper surface of the vehicle corresponding to the received reflected beams according to the emission angles of the two transmitting laser beams, the set positions of the transmitter and the receiver receiving the reflected light, the speed of the vehicle and the time for receiving the reflected light signals; and the longitudinal profile pattern of the mobile vehicle can be obtained by connecting the reflecting points by a line in sequence.

The invention discloses a city management intelligent streetlamp which comprises a streetlamp body arranged on a municipal road. A core controller is arranged in a lamp post of the streetlamp body. The core controller is connected with an illumination system, a water supply pipeline, an environment monitoring system and a communication system. The illumination system comprises a city streetlamp and a streetlamp controller. The streetlamp controller is in controlled connection through the core controller. The communication system comprises a wireless GPRS gateway module, a WiFi router and a ZigBee wireless unvarnished transmission module. The communication system is connected to a cloud service platform. The cloud service platform is connected with a government public information platform. A public information display is installed on the streetlamp body. The core controller is connected to a public security video monitoring system, a sky net monitoring system and a well lid monitoring managing system. By means of the city management intelligent streetlamp, the air humidity and temperature can be adjusted to a certain degree, the PM2.5 value in the air is reduced, the public information display is further arranged and can play government public information in real time, and due to the arranged public security video monitoring system and the interconnected sky net monitoring system and well lid monitoring managing system, good security work can be done.

The invention provides an oversize and overload nonlocal law enforcement system comprising a weighing subsystem which is used for realizing acquisition of vehicle weight data; a contour scanning subsystem which is used for realizing acquisition of vehicle contour data; a license plate recognition subsystem which is used for realizing acquisition of vehicle license plate information; an information release subsystem which is used for realizing information publishing and alarm prompting of oversize and overload vehicles; and a data processing subsystem which is used for judging the model number, the size and the weight of the current vehicle according to the vehicle contour data acquired by the contour scanning subsystem and the vehicle license plate information acquired by the license plate recognition subsystem so as to know whether the size of the vehicle is oversize and whether the weight is overload and transmit the local data to a background management part and also publish and alarm the oversize and overload vehicle license plates on the information release subsystem. The oversize and overload nonlocal law enforcement system is high in intelligent degree so that equipment and manpower input cost can be reduced, data acquisition and analysis can be performed anytime and anywhere and the working efficiency can be enhanced.

The invention particularly relates to a train platform precise display and cross-line voice alarm integrated management system for a railway station. The train platform precise display and cross-line voice alarm integrated management system comprises an information management platform and a compartment number display system which comprises a plurality of display screens, wherein the information management platform is used for analyzing read information, and carrying out information transmission on information to be displayed by the compartment number display system through a network. According to the train platform precise display and cross-line voice alarm integrated management system, compartment numbers are displayed by virtue of an LED (light-emitting diode) display screen; the display system adopts multi-surface display; slope angles between two side surfaces of the display system and the ground are 10-45 degrees and height of the display screens is not greater than 5 cm, so that passengers can be guaranteed to clearly see positions of 3-4 compartments to the greatest extent, the slope angles of the display screens are gentle, passing of pedestrians is not affected, and the problem that the passengers cannot find the positions of the compartments in a waiting process on the train platform, and get across the safe-guard line to possibly have an accident of falling into tacks is solved; the last-meter blind zone problem of safety management is firstly solved, and therefore, the train platform precise display and cross-line voice alarm integrated management system is worthy of being popularized.

The invention relates to a self-balancing external prestressing strengthening method for a bridge structure. The self-balancing external prestressing strengthening method is characterized by comprising the following steps of: carrying out interface processing at a connecting place (5) of a top flange of a concrete beam; (2) inserting reinforced bars at the connecting place (5) of the top flange of the concrete beam; (3) installing the reinforced bars at the connecting place (5) of the top flange of the concrete beam; (4) installing the reinforced bar of a steering block (6) and a diverter (9) at the bottom of the beam; (5) symmetrically adding diaphragm plates at a place far away from the end of the beam by 2-3m, and installing an anchorage device (10); (6) concreting the connecting place (5) of the top flange of the beam, the steering block (6) and the newly added diaphragm plates (8); and (7) installing and tensioning an anchoring external cable, thus obtaining a self-balancing external prestressing strengthening structure. An external prestressing system can be used for detecting and adjusting the stress of the cable at any time, inspecting the corrosion condition of the cable and can also be used for maintaining and replacing the cable when necessary. The self-compacting concrete solves the problems of dense reinforcement assembly, complex structure, narrow space of formworks and traditional structural members, cavities caused by the blocking of aggregates and the like, effectively ensures the dense degree of placing concrete and increases the strengthening effect. The self-balancing external prestressing strengthening method can be used for strengthening heavy railroad brides, concrete box girders and T beams.

A vehicle type recognition method based on CNN multiple-features combining and multi-core sparse representation includes the steps of using a smart traffic camera to take a vehicle image under complex scene, conducting pretreatment for the vehicle image, designing five convolutional layers and three full connection layers and automatically extracting global and local characteristics of the vehicle based on AlexNet network in CNN, taking the feature maps of the first, second and fifth pooling layers and sixth and seventh full connection layers subjected to column stretching as vehicle feature components and inputting to five different single-core functions, forming a combined feature matrix through weighted fusion, solving the weight of each function and the projection matrix of the combined feature matrix, and realizing vehicle type recognition according to core sparse minimal reconstruction error. Real-time vehicle type identification can be realized, traffic flow information needed can be extracted, traffic jam problem can be solved, and general planning and road construction of a road network are facilitated.

The invention discloses a wireless laser lofting device used in tunnel which is composed of the computer, the servo electrical total station, the semiconductor laser and the wireless communication processor. The computer serial port is connected with the wireless communicator; the total station is connected with the wireless communicator by the serial port; the semiconductor laser is installed in the ranging turn part of the total station. The system can locate and input the tunnel axis line data, the digging cross-section and the drilling scheme data controlled by the computer software; also it can measure the cross section and loft in the cross section outline, the cannon hole location. The device can deal the random curve tunnel, the cross section form and the drill scheme to monitor the digging by the laser. So it is proper for every underground project including the tunnel.

The invention discloses a blind guiding system based on an electronic blind crutch and a non-concave-convex blind track. The blind guiding system comprises the electronic blind crutch and the non-concave-convex blind track arranged on a sidewalk, wherein the electronic blind crutch comprises a camera shooting unit, a processing unit and a prompt unit; the non-concave-convex surface of the non-concave-convex blind track is provided with a blind guiding mark comprising bar patterns and dot patterns; the camera shooting unit is used for acquiring the blind guiding mark; the processing unit is used for generating blind guiding prompt information used for guiding blind people by analyzing the blind guiding mark; the prompt unit is used for realizing blinding guiding by voice frequency prompt or vibration prompt. According to the blind guiding system, the electronic blind crutch provided with a machine vision system is used for replacing the existing blind foot touch system and recognizing the blind track, so that the concave-convex part of the blind track can be removed, and diversified blind guiding services can be provided.

A slice-groove type new energy vehicle consists of a power receiving slice which is automatically and intelligently controlled and a charging groove on a midline of a road, wherein the charging groove on the midline of the road does not occupy too much space on the road and not affect the traffic and the appearance of a city; and the charging groove is a large power supply unit consisting of numerous small power supply units. When the slice-groove type new energy vehicle runs at the middle of the charging groove, a charging groove tracking indicator light in a cab is automatically turned on, and the power receiving slice is automatically inserted into the charging groove for charging. When the slice-groove type new energy vehicle leaves the charging groove or changes lanes to left or right, the power receiving slice is automatically controlled to be in a storage state. The slice-groove type new energy vehicle is subjected to processes of identification, charging, billing and accumulating when passing each of the small power supply units. The time at which the slice-groove type new energy vehicle runs on the charging groove on the midline of the road is the time of charging, and crowded motor vehicles on urban roads are like an "oversized parking lot". The slice-groove type new energy vehicle makes full use of valuable resources of the urban roads and converts disadvantages into advantages; in addition, not only the working efficiency and charging effect of the slice-groove type new energy vehicle but also the economic efficiency is improved.

The invention discloses an underground station constructed by prefabricated parts and a construction method thereof. The underground station comprises an upper station layer and a lower station layer; the upper station layer and the lower station layer are both formed by assembling a plurality of prefabricated parts, the lower station layer is communicated with the upper station layer, upper and lower station layer stairways are arranged at the communicating position, and the lower station layer is provided with a platform; the upper station layer is communicated with the ground, and a plurality of ground stairways communicated with the ground are arranged in the upper station layer. The lower station layer and the upper station layer are constructed in sequence, stiffening rib steel structures are dismantled after assembly of the prefabricated parts is completed, and an underground station space structure is formed; a top plate of the lower station layer and a bottom plate of the upper station layer are connected through bolts, pouring and leveling treatment is performed on bottom plates of the two layers, combined structure columns in the station are bound, and concrete is poured for reinforcement; then the station is decorated to complete station construction. The method has the advantages that construction is flexible and rapid, small-buried depth construction can be performed, influences on traffic and environment are small, and industrial production can be achieved.

The invention relates to a two-layer lifting parking device, comprising upright column (1), bracket (4) , lifting rack (3) and power apparatus. The power device is fixed inside the upright column (1), the lifting rack (3) is mounted on the power device, and the bracket (4) and the lifting rack (3) are hinged together. Structure of the invention is simple, accommodation area is small, no road space will be occupied when the device is not being used, and other vehicles passing will not be influenced. It is particularly suitable for using in dwelling area, place and space of the dwelling area will be made full use of, which is benefit for automobile popularization.

A driverless bus comprises a pure electric bus, an outdoor camera, an indoor camera, a front left laser radar, a front right laser radar, a rear left radar, a rear right radar, a manual steering wheel, an electric steering wheel, a pedal brake pump, an electric brake pump, a Hall speed regulator, an electric front door, an electric rear door, a cash box, a card wiping machine, a voice player, a vehicular computer, a storage battery pack, a navigation control box, a left tracking optical head, a right tracking optical head, navigation grooves, navigation routers, a bus route and a power supply monitoring station. The driverless bus has the advantages that the navigation control box and the navigation grooves are added to the navigation system of the bus, the visual navigation reliability problem of an existing driverless bus is solved while the power supply problem of a pure electric car is solved, the notches of the navigation grooves are only 3cm and are parallel with the pavement, the passing of vehicles and pedestrians at city road intersections or on a pedestrian crosswalk is affected, and the navigation grooves do not occupy the pavement and do not affect traffic and city appearance; the driverless bus can provide reliable and full-automatic intelligent bus servers for people, does not need fuel and is energy-saving and environmentally friendly.

The invention relates to a signal control system capable of realizing bus priority without a bus lane. When a priority signal processing unit in the signal control system determines that a bus appears in the first row of vehicles at an intersection, the priority signal processing unit further calls a proportional value of the number of buses to the total number of vehicles and a proportional threshold value stored in the priority signal processing unit to compare, and issues control instructions according to comparison result. In the control system disclosed by the invention, by setting the proportional threshold value, when the proportional value of the number of the buses to the total number of the vehicles is in a range of each interval, the longest delay time of a green light is limited, thus the problem that when more buses sequentially stop at the intersection, the transportation of other normal social vehicles is seriously affected by the bus priority strategy can be effectively avoided, the intersection delay of the buses is effectively reduced, and simultaneously the impact on the normal social vehicles is minimized.

The invention discloses a measuring device and method for vertical displacement and ground surface settlement of a large structure body. The measuring device comprises a plurality of measuring units and a data processing center arranged at a far end; each measuring unit comprises an imaging system, a hydro-static leveling instrument, a datum target, one or more measuring targets and one or more laser distance measuring instruments; and after obtaining measured results of the hydro-static leveling instrument, the laser distance measuring instruments and the imaging system, the data processing center calculates to obtain side wall parameters, top displacement parameters and ground surface settlement parameters of the large structure body according to measured results of a settling probe, the datum targets, the measuring targets and the laser distance measuring instruments. The measuring device overcomes the problem that measuring errors of the system are finally caused by deformation due to the fact that the imaging system bears a load or a mounting foundation of the imaging system is deformed and the like, so that measuring accuracy is improved; and meanwhile, non-disturbance measurement of the ground surface settlement parameters is realized, so that passing of vehicles inside is not affected for large structures such as a tunnel, and therefore, the measuring device has relatively high popularization and application value.

The invention relates to a shield tunnel segment structure considering municipal cable pipelines and an installing method. According to the adopted technical scheme, pre-buried channels are formed in segments, needing laying of cable supports, in a shield tunnel; the fixed ends on the front sides of cable support rods are fixed to the segments on the side walls through the pre-buried channels, and the rear sides of the cable support rods point to the interior of the tunnel in a jetting-out mode; arc-shaped supports are connected to the rear middle portions of the cable support rods, and the other ends of the arc-shaped supports are connected to a track base; the municipal cable pipelines are placed on the cable support rods. The shield tunnel segment structure has the advantages of achieving the multi-purpose effect and being good in structural performance. The shield tunnel segments, the track base and the supports are pre-manufactured components, and therefore quality is easy to guarantee. The supports and the pre-buried channels are high in strength, resistant to electricity and fire, capable of being produced on a large scale, high in technology reliability, easy to construct and short in construction period.

The invention discloses an automatic loss assessment method and system for automobile appearance on the basis of a deep neural network. A mobile phone shoots the long-shot / medium-shot photo of an accident automobile, automobile and automobile assembly component detection is carried out on the long-shot / medium-shot photograph in real time, according to an automobile and automobile assembly component detection result, a user is confirmed to shoot in a proper distance, and the user is prompted to shoot a first local automobile photo; the mobile phone continuously shoots the detail photo of the accident automobile, and a damage area in the detail photo is detected in real time; when the damage area is detected, the user is prompted to shoot a first detail photo; after the photo finishes beingshot, the user is continuously prompted to approach to shoot the area, when the damage area is detected again, the user is prompted to shoot a second detail photo, after the second detail photo finishes being shot, a current damage unit is submitted; and a background server carries out damage identification on each group of damage units submitted from the mobile phone, and the identification results of multiple groups of damage units are combined to obtain the damage details of the accident automobile.

The invention discloses a shared bicycle returning and parking management method. The method includes the steps of controlling an intelligent lock of a shared bicycle to be unlocked and starting billing when detecting the scanning action of a scanning terminal on a two-dimensional code of the shared bicycle in a renting site, determining the parking position of the shared bicycle and judging whether to trigger the scanning action on the two-dimensional code of the renting site or not when detecting a locking signal of the shared bicycle, and comparing the parking position of the shared bicycle and the area of the renting point and judging whether the parking position of the shared bicycle is located in the area of the renting site or not when detecting that the scanning action on the two-dimensional code of the renting site is triggered. By means of the method, bicycles can be parked and returned normatively without being broken after the shared bicycles are used by users without influencing the traffic or the city appearance, and convenience is brought to users who need to use the shared bicycles. The conditions of all renting sites can be monitored in real time, the bicycles can be scheduled in time to the sites where the bicycles are needed conveniently and rapidly, and the shared bicycles are convenient to maintain.

The invention provides a traffic monitoring sensor and a detection method. The traffic monitoring sensor comprises a nano-power generator and a detector, wherein the nano-power generator is used for detecting the mechanical force when a vehicle passes and forming an electric signal; the detector is used for detecting and analyzing the electric signal generated by the nano-power generator to obtain road traffic information; the road traffic information comprises traffic flow, vehicle speed and vehicle weight. Correspondingly, the invention also provides a traffic detection method. The traffic monitoring sensor provided by the invention is a self-driving sensor based on the nano-power generator, and can collect the mechanical energy in the vehicle motion and convert the mechanical energy into electric energy for supplying power for the detector, so an externally connected power supply is not needed, the cost and equipment maintenance are reduced, and the use burden of a sensor network is reduced.

The invention relates to the technical field of tunnel secondary lining, and particularly discloses a suspension overturn type tunnel inverted arch formwork trolley. The suspension overturn type tunnel inverted arch formwork trolley comprises an inverted arch arc-shaped formwork, a formwork folding and supporting system, a formwork adjusting system and a walking support frame. The formwork folding and supporting system has the function of making the inverted arch formwork leave a padding top surface by a certain height under a certain working condition, so that a space for manual plastering is available at the time of concrete padding construction; the formwork adjusting system has the function of adjusting the position and the height of the inverted arch arc-shaped formwork so as to meet different requirements. At the time of tunnel inverted arch construction and the padding construction, the suspension overturn type tunnel inverted arch formwork trolley is convenient and fast to use, capable of improving the construction efficiency, high in reliability, and low in construction cost. The invention further discloses a construction method of the suspension overturn type tunnel inverted arch formwork trolley. The utilization of the construction method enables the suspension overturn type tunnel inverted arch formwork trolley to meet different working conditions and greatly increases the use value of the suspension overturn type tunnel inverted arch formwork trolley.

The invention discloses a combined water treatment technology and apparatus using electric current to electrolyze water, wherein the main body comprises a plurality of parallel de-greasing electrodes, ultrasonic generation probes, power suppliers and a control system, wherein the multiple anodes containing metals Pt, Ir, Ru, Rh, Pd and their oxides are employed to electrolyze the chlorine ions and water molecules in the water into substances with high oxidation activity, and oxidation action is proceeded with the cells, RNA, DNA of the bacteria and algae so as to make them inactivate and dye.

The invention relates to a box girder transfer platform and girder transferring and girder loading working procedures thereof. The platform comprises a girder carrying trolley, a telescopic boom, a girder assembly, a door-shaped frame, a driving system, a hydraulic system and an electrical system, wherein the girder carrying trolley is arranged on the telescopic boom; the telescopic boom is supported by the door-shaped frame connected with pre-embedded foundation and the girder assembly arranged on the door-shaped frame; a driving device of the driving system is arranged at the rear end of the telescopic boom; guiding wheels of the driving system are arranged on front and rear end faces of the telescopic boom; a pump station of the hydraulic system is positioned on a girder of the door-shaped frame; a main cabinet of the electrical system is arranged on the girder of the door-shaped frame; the transfer platform can be used for transferring box girders, can transfer the box girders to one side of a bridge floor after the girders are taken from the girder carrying trolley; and after a bridge girder erection machine integrating transfer and erection operates to the side of the transfer platform, the girders are fed for the bridge girder erection machine integrating transfer and erection from the lateral side, so that parallel construction of the girder transfer and bridging is realized, and the girder erecting speed of the bridge girder erection machine integrating transfer and erection is improved greatly.

The invention relates to a suspension-type public bicycle frame, and discloses an energy-saving suspension-type public bicycle parking station. The energy-saving suspension-type public bicycle parking station comprises a suspension-type frame main body, a canopy and a solar power generation panel, wherein the frame main body is fixed on a base, a U-shaped oblique groove is formed in the middle of the base, a bicycle storage wall is arranged above the U-shaped oblique groove, a first track cavity and a fixing lock outlet are formed in the left side of the bicycle storage wall, and a second track cavity, a lifting lock hole and a fixing lock hole are formed in the right side of the bicycle storage wall; a first supporting seat, a second supporting seat, a hydraulic lifting rod, a first casing pipe, a second casing pipe, a first electronic push-pull rod, a second electronic push-pull rod, a lifting lock and a fixing lock are installed inside the frame main body; a convex monitoring camera, an infrared detector, an LED touch screen, a card punching groove, a card read chip and an indicator lamp are installed at the outer side of the frame main body; the canopy is fixed on stand columns, and the solar power generation panel is installed on the canopy by virtue of a rotatable supporting seat. By utilizing the energy-saving suspension-type public bicycle parking station, not only can the energy conservation and environmental protection be realized, but also the floor occupation space is reduced, bicycles are protected, and the bicycles are convenient for travelers to borrow and return.

The invention discloses an improved solvent cold laid asphalt as well as a preparation process and using method thereof. The improved solvent cold laid asphalt is at a liquid state under normal temperature or low temperature; cold oil and cold materials can be directly blended for construction on the spot without heating, and the construction can be carried out at high / low temperature seasons and rain / snow weather, and a large number of machinery and labor are not required in the construction process, the construction is simple and convenient and the repair effect is good; traffic can be immediately opened after repair without affecting the travel of people; the improved solvent cold laid asphalt is usually used for daily maintenance, such as pot slot repair and emergency repair; meanwhile, the improved solvent cold laid asphalt has the advantages of no deterioration, no layering and the like after being stored for a long time.

The invention discloses a derrick arrangement of tools for replacing a steel arch bridge suspender and a replacing method of replacing the steel arch bridge suspender. The derrick arrangement of tools for replacing the steel arch bridge comprises limit devices arranged symmetrically on two sides of the suspender, steel wire ropes, an intermediate converting device, a steel strand and a pocket lifting device fixedly arranged below a crossbeam of the suspender. The limit devices comprises horizontal limit devices and vertical limit devices, wherein the horizontal limit devices are arranged on an arc face of the top portion of an arch ring, and the vertical limit devices are arranged at two sides of the arch ring. Rubber cushions are laid between the horizontal limit devices and the top face of the arch ring, and the steel wire ropes are wound on the arch ring and are fixed by the limit devices. Two ends of the steel wire ropes are connected with the intermediate converting device, the other end of the intermediate converting device is connected with the upper end of the steel strand, and the lower end of the steel strand is connected with the pocket lifting device. The bottom portion of the pocket lifting device is connected with a lifting jack used for tensioning the steel strand. The derrick arrangement of tools for replacing the steel arch bridge is used for the method of replacing the steel arch suspender. The derrick arrangement of tools for replacing the steel arch bridge and the method of replacing the steel arch bridge have the advantages of being good in applicability, simple in structure, convenient to operate, space-saving, safe, reliable and economical, and good in application prospects.

The invention relates to a traffic collection system based on video monitoring, and the method comprises the steps: detecting the traffic flow of a road through the image processing and recognition technology and a video signal; achieving the automatic statistics of the number of motor vehicles running on a traffic road segment and the calculation of the running speeds through the real-time detection of the traffic condition information of the road and various types of behaviors of traffic targets, thereby achieving the monitoring of the traffic condition information of the road; building a road network scheduling system through the real-time data collected by a traffic flow monitoring system; issuing the collected traffic flow information through an LCD screen. The method provides the real-time road conditions, and achieves the guide of vehicles to pass reasonably.

The invention discloses a tunnel lining defect ground-penetrating radar detection system on the basis of a wall clinging type detection vehicle. The tunnel lining defect ground-penetrating radar detection system comprises the wall clinging type detection vehicle, a GPS / INS (global positioning system / inertial navigation system) combined navigation module, a vehicular communication and transmission module, a movement controller, a ground-penetrating radar module and a ground workstation. The wall clinging type detection vehicle is used for being attached onto tunnel lining surfaces and can move according to set paths; the GPS / INS combined navigation module is used for navigating the detection vehicle; the vehicular communication and transmission module is used for being in two-way communication with the ground workstation, receiving instruction signals of the workstation and transmitting positioning signals and detection signals to the workstation; the detection vehicle can move under the control of the movement controller; the ground-penetrating radar module is used for detecting cavities in lining back surfaces; the ground workstation is used for designing and controlling the navigation paths for the wall clinging type detection vehicle, and detection data transmitted by the detection vehicle can be received, analyzed and displayed by the ground workstation; the GPS / INS combined navigation module, the vehicular communication and transmission module, the movement controller and the ground-penetrating radar module are mounted on the wall clinging type detection vehicle. The tunnel lining defect ground-penetrating radar detection system has the advantages that traffic closure can be omitted, and the tunnel lining defect ground-penetrating radar detection system is low in cost and high in precision.

The invention belongs to the technical field of bridge maintenance and particularly relates to a self-propelled dual-beam bridge maintenance platform. According to the technical scheme, the self-propelled dual-beam bridge maintenance platform comprises two maintenance rack cars of the identical structure; each maintenance rack car comprises a bridge floor traveling mechanism, a telescopic arm assembly, turning mechanisms, vertical trusses, a detection platform fixing frame, a detection platform telescopic frame and a docking device; the traveling mechanisms are arranged on the two sides of a bridge floor; the head portion of each telescopic arm assembly is connected with the corresponding traveling mechanism; the upper portion of a connecting cross beam of each telescopic arm assembly is provided with the two corresponding turning mechanisms, and the two turning mechanisms are each provided with one vertical truss; the lower portion of each vertical truss is connected with a bottom detection platform; and as for the two maintenance rack cars, the bottom detection platforms can be connected into a whole through the docking devices. The self-propelled dual-beam bridge maintenance platform has the advantages of being convenient and fast to install, capable of being unfolded mechanically, free of occupying the bridge floor and influencing traffic, capable of passing through obstacles on the roadside and pier obstacles, and the like.