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An accurate high-speed moving vehicle mark identification method based on video belongs to a calculation processing method adopting image and mode identification technology to realize vehicle detection and vehicle mark identification. The present invention mainly comprises five function modules, namely a video camera control module, a motion detection module, a vehicle snapshot module, a vehicle positioning module and a vehicle identification module. The present invention acquires a real-time video image through a camera system, judges whether a vehicle passes by processing the video image, judges the motion direction of the vehicle according to motion characteristics, segments a picture of the moving vehicle from an image sequence, positions a vehicle mark through vehicle texture features, and performs classification identification to a vehicle head mark or a vehicle back mark by utilizing vehicle mark features before and after. The present invention can solve the vehicle model and vehicle mark identification of high-speed running vehicles, especially the identification of vehicle back marks.

The invention relates to the power distribution net monitoring field and provides a real-time state monitoring recognition method for indicator lights of a power device fault indicator. In the method, digital video signals collected by image collecting equipment of a camera, and the like are processed; video frames are extracted from the video signals; monitoring targets are determined, that is the target region of each indicator light in the video frames, and corresponding numbers are distributed; the pixel color change and the intensity roughness of each indicator light in the target regions of two adjacent frames are used for identifying the flash alarming of the fault indicator; specific conditions of faults are determined according to the identified target numbers of the flash alarming and the combinations thereof; the result is real-timely transmitted to a backstage by a distribution communication network to remind working personnel of the fault happening. The real-time state monitoring recognition method realizes the real-time monitoring recognition alarming for the light state of the fault indicator of the power equipment, ensures the reliability of a system, facilitates the installation and the modification of the system and guarantees the safety of installing and maintaining personnel.

The invention discloses a head-raising display device which can realize large-visual-field-angle double-picture displaying and a vehicle with same. The head-raising display device matches an image display unit in use and comprises an image generating unit and an image projection unit which is arranged between the image generating unit and the image display unit. The image generating unit at least can generate a first light beam which represents a first image and a second light beam that represents a second image. The image projection unit at least comprises a first optical module and a second optical module. The first optical module reflects the first light beam and performs beam expanding for forming a first emergent light beam. The second optical module reflects the second light beam and performs beam expanding for forming a second emergent light beam. The first optical module and the second optical module are constructed in a manner that the first emergent light beam and the second emergent light beam are deviated from each other in a manner that an included angle exists between each other, thereby correspondingly projecting a first virtual image picture and a second visual image picture which are not overlapped with each other on the image display unit to the visual field of a user.

The invention relates to the technical field of agricultural machinery, in particular to an automatic whole-row grafting device for grafted seedlings. The device comprises a rack (1), an electric control cabinet (3), a scion conveying mechanism I (5), a scion conveying mechanism II (8), a grafted seedling conveying mechanism (6), a scion clamping mechanism (87), a rootstock clamping mechanism (88), a scion seedling cutting mechanism (17), a rootstock seedling cutting mechanism (11), a scion seedling gathering mechanism (2), a rootstock seedling gathering mechanism (12) and an automatic whole-row grafting clamp conveying mechanism (89). According to the automatic whole-row grafting device for the grafted seedlings, plug seedling supply, whole-row seedling grabbing, seedling cutting, fixing and grafting of plug rootstock seedlings and plug scion seedlings are realized, and the whole operation process is automatically completed by a machine; the plug seedlings are rapidly grafted, the labor efficiency of grafting operation is improved, and the labor force is saved.

The invention discloses a wastewater treatment process monitoring system based on a wireless network. The wastewater treatment process monitoring system based on the wireless network comprises an industrial wireless sensor network, an industrial wireless local area network and a wireless wide area network. The industrial wireless sensor network is responsible for collecting information of field devices of each process of the wastewater treatment. The industrial wireless local area network is responsible for processing the information which is sent by the industrial wireless sensor network and returning the processed data to the field devices at the same time. The wireless wide area network is responsible for transmitting and replying remote monitoring application and sending stoppage information to appointed technical people automatically at regular intervals during the period from stoppage occurrence to stoppage resolution. A traditional distributed collecting and distributing control system is updated to a network control system through different wireless networks, and therefore wireless remote real-time monitoring is truly realized.

The invention provides an air-conditioning system. The air-conditioning system comprises an outdoor unit, at least one indoor unit and at least one gateway, wherein each gateway is connected with the outdoor unit in a wired mode and connected with one or more indoor units in a wireless mode, and each gateway is used for setting the communication addresses of the corresponding indoor units connected in the wireless mode and sending the communication addresses to the corresponding indoor units; all the indoor units send corresponding indoor unit data to the gateways in a wireless communication mode, and the gateways send the indoor unit data to the outdoor unit according to the communication addresses of all the indoor units. According to the air-conditioning system, stable and reliable data interaction is achieved between the outdoor unit and the indoor units through the gateways, the gateways of the air-conditioning system are connected with the outdoor unit in the wired mode to ensure communication quality, and the gateways are connected with the indoor units in a wireless communication mode, so that difficulty of wiring planning is reduced, and installation is flexible and convenient to carry out. In addition, the air-conditioning system has the advantages of being low in project construction cost, cost and power consumption.

The invention provides a technical scheme about a diode laser spectrum synthesizer based on double-grating external cavity feedback. The diode laser spectrum synthesizer includes a diode laser light source, a first grating, a second grating and an external cavity lens; the diode laser light source includes a diode laser stack, a fast axis collimating lens and a slow axis collimating lend; laser beams output by the diode laser light source are incident on the first grating and diffracted, the diffracted light beams are incident on the second grating, and the light beams are incident into the external cavity lens after being subjected to beam combination by the second grating; the external cavity lend is perpendicular to the light beam propagation direction, for providing feedback laser and meanwhile achieving output of light. The diode laser spectrum synthesizer does not have strict requirements on distance between the diode laser light source and the first grating and distance between the second grating and the external cavity lens, reduced in spatial volume of light path, convenient and flexible to install and just and increased in system reliability and engineering feasibility.

The invention discloses a laser frequency hopping underwater acoustic-induced digital communication system and a laser frequency hopping underwater acoustic-induced digital communication method. The reliability and security of both parties of communication in information transmission are guaranteed according to the channel characteristics of a communication environment. According to the invention, atmospheric optical communication and underwater acoustic communication are combined, the laser frequency hopping technology is adopted, a laser emits laser light under the control of a code formed by loading information to different repeated-frequency frames, and laser energy is transmitted by atmosphere to the surface of water and then interacts with water medium through evaporation or breakdown. Thus, optical wave energy is converted into acoustic wave energy which is transmitted underwater in different directions and can be received by an underwater acoustic collector placed in any position within a certain range underwater, and thus, non-line-of-sight data communication from air to underwater can be completed. As long as both parties of communication abide by an agreed laser frequency hopping communication protocol, the information security and privacy of both parties of communication can be guaranteed to a certain extent. Thus, the communication method applicable to an open channel environment has more practical values.

The invention discloses a construction method of bridge seamless type expansion joint. The construction method of the bridge seamless type expansion joint includes the steps of embedding a sealing strip in the seam portion of the expansion joint, pouring melted 502 elastic-plastic bodies, placing a cross-seam aluminum sheet well, paving various high molecular polymers which fit in with the American society for testing material (ASTM) standard layer by layer, wherein the various high molecular polymers are mixed materials of the 502 elastic-plastic bodies and granite of a corresponding grade, finally using granitic plaster as a surface wearing layer, and the bridge seamless type expansion joint is achieved. The construction method of the bridge seamless type expansion joint has the advantages of satisfying stretch and displacement of an upper portion structure of the bridge, guaranteeing that cars run stably, improving riding comfort, and being strong in elastic restoring force, capable of resisting the high and low temperature, good in plasticity, extensibility, durability, waterproof performance and adhesion performance, long in service life, convenient to install, flexible in installation, rapid in traffic openness and the like. In addition, the construction method of the bridge seamless type expansion joint further has the advantage that the extensible displacement is from 20mm to 50 mm.

The utility model discloses a fence and installation method thereof. The fence comprises a fence post, a platen, a top cover, a crank arm, a mesh, rails, a rail-linking member, bolts and a bolt 2. The fence has the advantages of being high in safety and protection, being accessible to a plurality of occasions, being easy in installation, being convenient and flexible to assemble and disassemble, being high in recycling utilization rate and being capable of lowering manufacture cost.

The invention discloses a reverse osmosis water processing method and a reverse osmosis drainage system in a construction period of a concrete faced rockfill dam. A drainage blind material is arranged in a horizontal interface between a transition area and an upstream rockfill area, a sleeving is connected with one side, arranged on the upper stream, of the drainage blind material, the other side of the sleeving is connected with a horizontal drain pipe with a one-way water stop valve, connection threads are respectively arranged outside two ends of the horizontal drain pipe, the other side of the horizontal drain pipe is connected with a drainage hose, the other end of the drainage hose is placed in a water-collecting well, and a vertical drain pipe is further arranged. The reverse osmosis water processing method and the reverse osmosis drainage system in the construction period of the concrete faced rockfill dam are particularly applicable for reverse drainage in the construction period of the concrete faced rockfill dam, wherein the concrete faced rockfill dam is deep in foundation excavation of riverbed section toe boards, and long in upstream bedding filling construction period, and a dam body needs flood crossing and water retaining.

The invention provides an omni-directional damping single-freedom-degree photoelectric reconnaissance platform device and relates to the technical field of low-altitude remote sensing and aerial photography. The omni-directional damping single-freedom-degree photoelectric reconnaissance platform device solves the problem that an existing photoelectric reconnaissance platform device cannot be suitable for a micro-miniature multi-rotor unmanned aircraft. The omni-directional damping single-freedom-degree photoelectric reconnaissance platform device comprises a supporting frame, a supporting plate connected with the supporting frame, an omni-directional damping mechanism which comprises a base connected with the supporting frame, a substrate fixedly connected with an aircraft, a first nitrogen spring, a fourth nitrogen spring, a fifth nitrogen spring, a second nitrogen spring, a third nitrogen spring, a pitching rotation mechanism which comprises a driving motor fixed on the supporting frame, a crank connected with the driving motor, a first connecting rod connected with the crank, a second connecting rod connected with the first connecting rod, one ends of the first nitrogen spring, the fourth nitrogen spring and the fifth nitrogen spring are connected with the substrate, the other ends of the first nitrogen spring, the fourth nitrogen spring and the fifth nitrogen spring are connected with the base, one ends of the second nitrogen spring and the third nitrogen spring are connected with the base, the other ends of the second nitrogen spring and the third nitrogen spring are connected with the substrate, and the second connecting rod is respectively connected with the supporting plate and a first connecting block respectively. The omni-directional damping single-freedom-degree photoelectric reconnaissance platform device can effectively eliminate vibration in any direction, improves imaging quality, and is simple in structure, low in cost and high in reliability.

The invention relates to a quickly-installed manipulator of an attached type tunnel arch, belonging to the field of manipulators. The quickly-installed manipulator of the attached type tunnel arch is attached to a freely moved arm-shaped device. When the quickly-installed manipulator of the attached type tunnel arch works, a formed-steel arch is clamped by a movable clamp, the quickly-installed manipulator of the attached type tunnel arch is driven by the freely moved arm-shaped device to move, and the formed-steel arch is installed in place. The coat of the quickly-installed manipulator of the attached type tunnel arch is greatly reduced, and the quickly-installed manipulator of the attached type tunnel arch is convenient to move and is easy to assemble.

The invention relates to an electric power switchgear switch state image recognition system comprising an off-line training module and an on-line detecting module. The off-line training module collects and trains a large number of switch samples to form a plurality of strong classifiers, and the strong classifiers are loaded in the on-line detecting module. The on-line detecting module transforms the collected switch images to switch gray images and denoises, utilizes the strong classifiers to respectively scan and search the gray images, and obtains the positions and state information of the switches. The invention can realize that the image collection, processing and recognition processes are completed in the on-line detecting module, and overcomes the dependence to communication bandwidth and equipment because videos collected by the traditional video monitoring systems are transmitted to remote background systems through a wired or wireless mode. The invention can automatically determine the positions and the states of the switches in the images, does not need manual operation, has high degree of automation, and is suitable for state recognition of various types of electric power switches.

The invention belongs to underground coal mine mechanical devices and particularly relates to a novel belt conveyor which solves the problems of high energy consumption and poor safety in the existing belt conveyor. The conveyor comprises a body, an unloading portion, a head portion, a belt tensioning portion, a belt winding and unwinding device, a driving device, a transition off-tracking-proof front-arranged support roll group, a rubber belt, a self-movable tail, a belt protection and control system and a video monitoring system. The novel belt conveyor is applied to a working face of an underground coal mine to convey raw coal in a crossheading mode, can be used for long-distance large-quantity transportation, can adapt to various work conditions and roadway conditions, is high in operation stability and energy utilization rate and simple to operate, greatly reduces labor intensity, saves cost and is an ideal transportation device. The performance of the conveyor can meet the requirements of underground coal mine coal transportation for safety, high efficiency and energy saving, and functions of soft starting, soft braking, automatic tensioning, immediate belt tension adjustment, simultaneous driving of the head and the tail, returning of power generation work conditions and electric energy to a grid, belt off tracking adjustment to achieve stable transportation and the like can be achieved.

The invention discloses a retractable castor mechanism of a rack. The retractable castor mechanism is installed in the bottom of the rack, and comprises a supporting part, a screw and a universal castor, wherein an accommodating groove is arranged in the supporting part, an opening in the bottom of the accommodating groove is arranged in a base plate of the rack, the screw is arranged in the supporting part, the top of the screw is provided with a screw cap above the supporting part, the bottom of the screw is provided with the universal castor in the accommodating groove, and the universal castor can extend out of or can be retracted into the accommodating groove by virtue of the regulation of the screw. Compared with the traditional castor of the rack, the retractable castor mechanism of the rack, disclosed by the invention, is more flexible and convenient to transport, the installation cost of the rack is reduced, and the installation efficiency of the rack is improved. Therefore the retractable castor mechanism of the rack has the advantages of being simple in structure, easy to process, low in cost, practical, and capable of being applied to most of the racks.

The invention discloses a reflection-type sunshine illuminating system. The reflecting-type sunshine illuminating system comprises a light collecting device, an optical fiber coupler, a fiber optics bundle, and a semi-light-penetrable semi-trans-form light conduction lighting device, wherein the optical fiber coupler is connected with the light collecting device and is used for enabling sunshine which is collected through the light collecting device to be coupled in optical fibers, the fiber optics bundle is connected with the optical fiber coupler, and the semi-light-penetrable semi-trans-form light conduction lighting device is connected with the fiber optics bundle. The semi-light-penetrable semi-trans-form light conduction lighting device comprises a light guiding pipe and a plurality of semi-light-penetrable semi-trans-form prisms, wherein the plurality of semi-light-penetrable semi-trans-form prisms are arranged inside the light conducting pipe in a distributing mode at intervals. A light outlet is formed in the bottom portion of the light guiding pipe of the semi-light-penetrable semi-trans-form light conduction lighting device and a diffusing device is installed at the portion of the light outlet. The reflection-type sunshine illuminating system is simple in structure, reasonable in design, low in realizing cost, and capable of being widely applied to the fields such as gymnasium illumination, market illumination, underground illumination, underwater illumination, tunnel illumination, and road illumination. Besides, the fields of development and utilization of solar energy and the utilization rate are improved.

A temp. measurer of electronic clinic thermometer is composed of temp. measuring probe (thermosensitive semiconductor diode) and signal processing circuit. Its advantages are high speed and correctness, and the angle of temp. measuring probe variable between 30-90 deg..