55results about How to "Eliminate personal safety hazards" patented technology

The invention belongs to the field of laser radar measuring, and particularly discloses a road feature extracting method based on fracture surface subdivision. The method comprises the step of obtaining laser scanning point cloud data through a laser radar measuring device, the step of determining a road feature guide line and extracting road feature nearby point cloud data, the step of generating subdivision sections according to the road feature guide line and a certain step length and calculating the coordinates of proximal point clouds in a subdivision section coordinate system to finish fracture surface subdivision of laser point clouds, the step of selecting one subdivision section with integrated feature information and generating a road feature point cloud template in which a user is interest, the step of determining final conversion model parameters of the road feature point cloud template and the subdivision section point clouds, and the step of calculating the space coordinates of road features, extracting needed features according to the characters of the road features and finally finishing measuring and extracting of the road features. The idea of the fracture surface subdivision is introduced, the complex road features are automatically measured and extracted, the working efficiency is remarkably improved on the premise of guaranteeing measuring precision, and the method has remarkable economic and social benefits.

The invention discloses an examining and training teaching aid and a method for assembling and disassembling a tower crane, and belongs to the technical field of teaching aids for assembling and disassembling hoisting machinery. The examining and training teaching aid comprises a tower body mechanism. A climbing device and a rotary support assembly are arranged on the tower body mechanism, a rotary motor and the like are arranged on the rotary support assembly, a counterweight, a main lifting motor, a balance arm draw bar, a distribution box, a remote-control receiver and the like are arranged on a balance arm, a trolley motor and the like are arranged on a large arm, the other end of a large arm draw bar and the other end of the balance arm draw bar are fixed to the top of a tower cap by hinge pins, and the rotary motor and the main lifting motor are in signal connection with a remote controller. According to the technology, the examining and training teaching aid and the method have the advantages that trainees can be trained on the premise that the safety and the controllability of examining and training procedures are guaranteed, a tower crane assembling and disassembling process can be mastered by the trainees, the tower crane assembling and disassembling ability of employees can be examined, direct training and examining in real tower crane environments with low safety and controllability are prevented, and the safety is improved.

The invention discloses a monitoring system and a monitoring method for a liquid level of a fire-fighting high-altitude water tank for a tunnel. The monitoring system comprises a pressure sensor, a flow sensor and a monitoring system, wherein the pressure sensor and the flow sensor are arranged on a fire-fighting main tube from the high-altitude water tank to the tunnel, and the monitoring system is used for receiving a water pressure signal of the pressure sensor and a water flow signal of the flow sensor and calculating a liquid level value of the high-altitude water tank. By adopting the monitoring system provided by the invention, the liquid level of the high-altitude water tank, the water pressure condition and the water usage condition (including water leakage or fight-fighting water theft) can be remotely known through calculating and the fault or water level can be monitored in real time; when the fire-fighting main tube is under the abnormal conditions, such as serious leakage or blocking, the pressure state of the fire-fighting main tube of the tunnel is correctly reflected so as to timely eliminate the fire-fighting potential safety hazard, so that the high-altitude water tank can safely run for a long period of time, the monitoring efficiency is greatly increased, the waste of water resource is reduced and the operation cost of a road is lowered; the monitoring system can prevent theft; cables are effectively protected; the maintenance cost is lowered; and the potential personal safety hazard caused by climbing maintenance is eliminated.

An omnipotent safety plug with an alarm device comprises a connecting wire for a ground wire, a zero line and a phase line respectively having a switch, as well as a leakage protector consisting of a zero sequence mutual inductor, a release, an amplifier, a rectifier, a test circuit and a silicon controlled rectifier. The present invention also comprises an optical coupler and a sound and / or flash alarm circuit; the optical coupler consists of a dark box, a neon lamp and a photosensitive element; the neon lamp and the photosensitive element are arranged in the dark box; a small hole is arranged on the dark box; the sound and / or flash alarm circuit is connected with one end of the photosensitive element in the optical coupler and then is connected to a position between input pin ends of the phase line and the zero line; the neon lamp is serially connected with a resistor and then is connected with a position between input pin ends of the ground wire and the zero line. The omnipotent safety plug has the advantages that: firstly, when the ground wire is electrified, the plug intensely warns users of the electrified ground wire and ensures that users can concentrate on the potential safety trouble of the electrified ground wire and exclude in time, so as to eliminate personnel safety hidden trouble; secondly, when the ground wire is normally grounded, if the phase line and the zero line are reversely connected, the neon lamp is turned on to flash for warning because high voltage exists between the zero line and the ground wire.

The invention discloses a feed manipulator of a spring bars former. The feed manipulator comprises a gripping mechanism, a telescoping mechanism, a rotating mechanism, and a shifting mechanism. The side of the telescoping mechanism is connected with the gripping mechanism and capable of telescoping lengthwise along the gripping mechanism. The rotating mechanism is connected to the top of the telescoping mechanism. When rotating, the rotating mechanism drives the telescoping mechanism and the gripping mechanism to swing in the vertical plane, where the telescoping mechanism and the gripping mechanism are located, by centering on the connection of the telescoping mechanism with the gripping rotating mechanism. The rotating mechanism is fixed on the shifting mechanism which can shift transversely. The feed manipulator has the advantages that the problem of low automation level of a spring bars production line is solved, potential safety hazards of workers are eliminated, workers need not work in the severe environment, production efficiency is improved, product quality is guaranteed, and the manipulator is an anthropopathic electronic device having the advantages of both human and machine.

The invention relates to insulating telescopic pin pulling pliers, which is characterized by comprising an outer insulating sleeve 3 and an inner insulating sleeve 4 capable of moving in the outer insulating sleeve 3, wherein a fixed gripper arm 5 is installed at the front end of the outer insulating sleeve 3; a movable gripper arm 6 is installed at the front end of the inner insulating sleeve 4; a guide groove 10 is machined on an inner surface of the outer insulating sleeve 3; the inner insulating sleeve 4 is provided with a guide pin 9 matched with the guide groove 10; a nut 11 is installed at the tail end of the inner insulating sleeve 4; a screw rod 12 is matched with the nut 11; and a limiting rod 2 is installed on the screw rod 12 and located at the outer side of the tail end of the outer insulating sleeve 3. With the adoption of the insulating telescopic pin pulling pliers, an operator can stand on a ground to examine and repair top electrified equipment without entering an electric field, thus potential personal safety hazards are eliminated, and work efficiency is improved.

A tower-free barrier clearing device including drones, camera device, Control unit, first pulley support, first pulley, Second pulley, connecting mechanism, Anti-disengagement mechanism, Sliding rope,barrier removal mechanism, Camera device are arranged on that unmanned aerial vehicle, A link mechanism is dispose between that unmanned aerial vehicle and the top of the first pulley bracket to detachably connect the first pulley bracket to the unmanned aerial vehicle, An anti-disengagement mechanism is provided between the unmanned aerial vehicle and the first pulley support bracket to preventthe first pulley support bracket from accidentally disengaging from the unmanned aerial vehicle, A first pulley is rotatably disposed on the first pulley bracket and matched to the high voltage wire,a second pulley is disposed at the bottom of the first pulley bracket, and a slide rope is matched to the second pulley to convey the barrier removal mechanism below the high voltage wire through thesecond pulley. The first pulley is rotatably disposed on the first pulley bracket and matched to the high voltage wire. The invention also provides a tower-free barrier clearing method. The inventioncan remove foreign bodies of the high-voltage line without manual climbing the tower, avoids damage of the high-voltage line due to foreign bodies or electric leakage, has high barrier removing efficiency, and eliminates the personal safety hidden danger of the barrier removing personnel.

The invention discloses an ice flood observation system based on the technology of computer vision. A system which consists of an observation device, data processing equipment and terminal equipment is designed, wherein the observation device and the data processing equipment are in wireless signal connection. Moreover, a data collection and processing method based on the above system is also designed, and the method comprises the steps: automatically collecting image data through a camera mechanism, and transmitting the image data to the data processing equipment through a wireless signal; carrying out the image space conversion of the image collected by the camera mechanism through the data processing equipment, thereby achieving the quantitative analysis of ice flood distribution image data of a river. The beneficial effects of the invention are that the structure is simple; the design is reasonable; the system reads the ice flood data of engineering observation points in a region from one display according to the collection time; the system is high in data reading precision, is high in timeliness, is convenient and quick, can save a large amount of observers, alleviates the labor intensity, and eliminates the personal potential safety hazards.

The invention discloses a movable cable cover plate crane carriage of a transformer substation. The movable cable cover plate crane carriage comprises a main frame, an upper frame, a hand winch, a pull rope and hooks. The bottom of each stand column among four stand columns is provided with a universal wheel capable of driving the crane carriage to move and automatically steering. The upper frame comprises two stand frames and a top rod. The hand winch is fixed to the middle of the top rod. The left end and the right end of the top rod are respectively provided with a fixed pulley. The pull rope is wound on the hand winch. The two ends of the pull rope are wound around the fixed pulleys at the two ends of the top rod respectively, and the tail ends of the pull rope are respectively and fixedly provided with one hook. The movable cable cover plate crane carriage of the transformer substation has the advantages of being capable of quickly and conveniently lifting up cable cover plates, reducing lifting time, moving time and cover plate recovery time in the process of inspecting a cable channel, eliminating potential safety hazards in the process of moving the cover plates, and the like.

The invention relates to an F-type rolling mill calibrating tool for a hot continuous rolling production line. The calibrating tool comprises a support rod, sleeves, a locating rod and copper rods, wherein the support rod is a long and thin rod piece, two sleeves are fixedly arranged on the support rod, the two sleeves have same length and same diameter and are parallel to each other, an interval between the sleeves is L1, one end of each sleeve is vertically fixed on the support rod, the other end of the sleeve is an opening, the copper rods are plugged and fixed in the open ends of the two sleeves and are exposed out of the sleeves by certain distance, the two copper rods also have same length and diameter, an interval between the two copper rods is L1; the locating rod is fixedly arranged on the support rod and is arranged by being vertical to both the support rod and the sleeves; the copper rods are arranged between upper and lower rollers, the center distance between screwing-down bolts / AGC cylinders at two sides of the rollers is L0, the thickness difference of the two copper rods before and after being rolled by the rollers is delta h, and the roller seam deviation needing to be adjusted of the screwing-down bolts / AGC cylinders at two sides of the rollers is delta s, wherein delta s equals to L0 divided by L1 multiplied by delta h. The calibrating tool is improved in safety, and can improve the measuring precision, improve the measuring efficiency and save copper rod consumption.

The invention relates to the field of petroleum drilling equipment, in particular to a rig drill floor pipe arranging robot. The rig drill floor pipe arranging robot includes a gripper mechanism, a linkage arm, a slewing mechanism, a trolley walking mechanism and an avoidance mechanism, wherein the trolley walking mechanism is provided with a walking trolley, the slewing mechanism is installed onthe walking trolley, the linkage arm is installed on the slewing mechanism, the gripper mechanism is arranged at the free end of the linkage arm, the avoidance mechanism is arranged on one side of thetrolley walking mechanism, and the walking trolley moves to the avoidance mechanism when avoidance is carried out. The rig drill floor pipe arranging robot can automatically complete grasping and releasing actions of three-joint units according to the actual location requirements, the pipe arranging operation efficiency and accuracy are greatly improved, the labor cost is reduced, and the potential personal safety hazards in production are eliminated.

The invention discloses a construction beam gesture monitoring system which comprises a measuring system, a data transmitting system (3) and a data processing system (4). The measuring system consists of a static level and a static data acquisition instrument (2), the static level is arranged on a construction beam, the data transmitting system (3) is connected between the measuring system and the data processing system (4) so as to transmit monitored position or measured position change information of the measuring system to the data processing system (4), the data processing system (4) comprises a computer system and a data processing module, and the data processing module is placed in the computer system and can handle, analyze and process received data. The construction beam gesture monitoring system can dynamically monitor real-time conditions of the construction beam and lines on the construction beam, an effect of monitoring the construction beam in real time is achieved, work efficiency is greatly improved, and safety accidents are reduced.

The invention relates to the field of coke oven tamping machines and in particular relates to a coke oven tamping machine for tests and a uniform density control method thereof. The height difference of a sample before and after tamping is detected in real time through a controller, the lifting height or tamping time of a tamping hammer is regulated, and the uniformity of the tamped sample is guaranteed. The method comprises the following steps of: (1) inputting a preset target density value rho in the controller; (2) performing pre-tamping during the first tamping; and (3) automatically tamping through a tamping mechanism under control of the controller until the height H of the detected sample and a target height value are consistent, and stopping tamping. Compared with the prior art, the method has the beneficial effects that the uniformity of the sample density can be effectively improved, so that an accurate and reliable result is obtained in a coking test on the stable, scientific and strict basis, and the influence of human factors of operators on the test result is alleviated to be minimum; the equipment is higher in degree of automation, the labor intensity of the operators is reduced, and the personal potential safety hazard is eliminated.

The invention relates to an automatic feeding and discharging device of a punching machine. The device comprises a PLC control system, a feeding robot and a discharging robot, wherein the feeding robot and the discharging robot are installed on the left side and the right side of a punching machine body, the PLC control system is electrically connected with the feeding robot, the punching machinebody and the discharging robot, a vacuum generator and a feeding gripper are installed on a robot arm of the feeding robot, the feeding robot is connected with the vacuum generator through an electrical connection wire, the feeding gripper is indirectly controlled to grab and place workpieces by controlling the vacuum generator, each of the feeding gripper and a discharging gripper comprises a tooling with a sucker, and the suckers are connected with the vacuum generator through air pipes. The device is suitable for automatic feeding and discharging of thin sheet-shaped products, the lean production mode of punching automation and unmanned operation is achieved, punching equipment can continuously and stably work for 24 hours, the production efficiency is improved, the labor cost is saved,meanwhile, the automatic production mode of unmanned operation of the punching machine is achieved, and personal safety hazards are eliminated.

The invention belongs to the technical field of road survey equipment, and relates to a road survey device. According to the road survey device, a main body structure comprises an equipment box, a camera, a distance sensor, a server, a temperature-humidity controller, an angle sensor, a converter, a GPS module, a data switching exchange, a heater, a cold exhaust fan, a network wire interface, a power supply wire interface, a terminal, a storage battery and a temperature-humidity sensor. The road situation of a surveyed route can be automatically monitored in real time, images of survey nodes can be taken, data information such as widths, heights, longitudes and latitudes and radians of surveyed roads and barriers on roads can be surveyed, the data information validity can be verified in real time, operation such as data information recording, calling and query is supported, and moreover, due to a constant temperature and humidity environment in the heat-preservation type equipment box, normal operation of different components is ensured, and the integrality and the stability are improved; the road survey device is simple in structure, precise in survey result, visible and easy to use, good in stability, long in service life, high in survey efficiency, low in cost, good in application environment, and wide in application range.

The invention discloses a line obstacle elimination method and system. The method comprises the steps that an unmanned aerial plane obtains position information of an obstacle, and transmits the position information to a ground control device; the ground control device determines a microwave reflection path based on the position information and sends a position adjustment instruction and microwaves to the unmanned aerial vehicle based on the microwave reflection path; and the unmanned aerial vehicle arrives at the target position according to the position adjustment instruction and reflects the received microwaves to the obstacle so as to eliminate the obstacle. According to the invention, the technical effects that obstacles on a line can be eliminated without advanced power failure or manual trimming and cleaning, the operation and maintenance efficiency is improved, the operation and maintenance cost is reduced, the personal safety hazard of the operation and maintenance personnel is eliminated, the load loss is reduced, and the inconvenience of power utilization of users is reduced are achieved.

The invention discloses a magnetic steel spraying automatic production line. A cleaning area and a spraying area are included. .The cleaning area comprises a cleaning section and a drying section, thecleaning section is used for removing dirt on the surface of a workpiece, and the drying section is used for drying the cleaned workpiece The spraying area comprises two spraying sections, two thermocuring sections, two air cooling sections and a turnover device, the two spraying sections are used for spraying the surface of the workpiece, the two thermocuring sections are used for curing a coating formed after workpiece spraying, the two air cooling sections are used for cooling the workpiece in a high-temperature state, and the turnover device is used for turning over the workpiece. The connection relation among all the parts in the spraying area is the first spraying section, the first thermocuring section, the first air cooling section, the turnover device, the second spraying section, the second thermocuring section and the second air cooling section. The production line is simple in structure and automatic in operation, and the workpiece can be subjected to multi-layer sprayingaccording to actual requirements.

A special tool for pulling and inserting an R type spring pin from an insulator is disclosed. The special tool for pulling and inserting the R type spring pin from the insulator is characterized by comprising a pressure handle, a labor-saving rod, a fixed groove and an opening hook, wherein the labor-saving rod and the pressure handle are perpendicularly connected; the upper part of the opening hook is perpendicularly connected with the labor-saving rod; the fixed groove is formed in the middle of the opening hook; and the lower part of the opening hook is in a trapezoidal opening structure. The special tool for pulling and inserting the R type spring pin from the insulator has the advantages that the R type spring pin can be rapidly pulled out and inserted by only two simple steps, and the R type spring spin and the insulator body are not damaged by the special tool; and in addition, the operation time is saved, the working efficiency is improved, and the potential safety hazard on operators caused by fatigued operations is eliminated.

The invention relates to a water non-stop continuous cleaning method and equipment for a coal mine underground central water sump, which are used for achieving continuous and effective cleaning on coal slime in the sump when the coal mine underground central water sump is in a normal use state. The water non-stop continuous cleaning method comprises: firstly, according to a coal slime settling test,determining a settling length of the coal slime in the coal mine underground central water sump; according to the settling length, setting a cofferdam, so that a settling water sump is formed from a sump opening of the water sump to the cofferdam; then enabling a mud scraper to reciprocate in the settling water sump to gradually collect the coal slime to the sump opening of the water sump from outside to inside; conveying the coal slime into a double-layer vibratory screening dehydrator by a screw scraper conveyer arranged at the sump opening of the water sump to carry out screening and dehydration; directly loading discharged dry coal slime to a vehicle for carrying away, and enabling screened water to flow back to the water sump. According to the water non-stop continuous cleaning method and equipment for the coal mine underground central water sump, a driven sump cleaning mode is changed into a driving sump cleaning mode, the integral cleaning process is continuous and efficient, system equipment can be started up and shut down at any time, the water non-stop continuous cleaning method and equipment are simple and convenient to operate, equipment in the sump does not need to be operated by special personnel, and the personal potential safety hazard of the underwater operation is eliminated.

The invention discloses electronic device assembling and pressure maintaining equipment. The electronic device assembling and pressure maintaining equipment comprises a rack, a feeding device, a taking and placing device, a first detecting device, a second detecting device, a transporting and loading device and a pressure maintaining device, the feeding device comprises a feeding jig and a feeding driving mechanism; the feeding jig is used for placing a shell and a battery; the transporting and loading device comprises a transporting and loading jig and a transporting and loading driving mechanism; the feeding driving mechanism drives the feeding jig to move to the pick-and-place device, and the pick-and-place device is used for clamping and conveying the battery to the first detection device for detection; the taking and placing device is further used for clamping the shell and placing the shell in the transporting and loading jig, and the transporting and loading driving mechanism drives the transporting and loading jig to move the shell to the second detection device for detection. The pick-and-place device is also used for assembling the battery and the shell into an assembly body in a butt joint manner; the transporting and loading driving mechanism drives the transporting and loading jig to move to the position below the pressure maintaining device to conduct pressure maintaining on the assembly. According to the invention, intelligent and automatic production of electronic devices is realized, and the product yield and the production efficiency are improved.

The invention discloses a wheel type pneumatic energy storage coke removing machine, and relates to the technical field of machinery. The key technology of driving wheel walking pneumatic or hydraulic energy storage or caterpillar band walking pneumatic or hydraulic energy storage is adopted. The wheel type pneumatic energy storage coke removing machine is characterized in that the bottom end of a frame plate is rotatably and movably connected with driving wheels; the frame plate is fixed to a pneumatic device; an output end of the pneumatic device is fixed to the upper ends of supports; an annular gear on the frame plate is in occlusion with a circular gear on an output shaft of a gearbox connected with a rotating motor on a rotating body; an annular rail on the frame plate is movably connected with a rail wheel of the lower end of the rotating body in a rolling manner; the upper end of the rotating body is fixed to the lower end of a frame body; the frame body is fixed to the pneumatic device; the output end of the pneumatic device is fixed to a lifting arm; the upper end of the lifting arm and the lower end of a master arm, the upper end of the master arm and the lower end of a linkage arm, and the upper end of the linkage arm and a pneumatic part are rotatably and movably connected through deceleration motors; and an output end of the pneumatic part is fixed to the back end of a steel chisel. The wheel type pneumatic energy storage coke removing machine is used for removing cokes of a utility boiler, and is a new product which is simple and ingenious in structure, stable in effect, easy to manufacture, and low in cost.

The invention relates to a movable copper and lead hoisting device. A bracket is formed by a beam, a top plate and an underframe; the beam is provided with a handle frame; the underframe is provided with two shaft buckles; the two shaft buckles sleeve a shaft; two wheel frames are respectively welded at both ends of the shaft; the wheel frames are provided with wheels; a rotating rod is welded at the middle part of the shaft; a hoist and a pulley frame are arranged on the top plate; one end of a hoist shaft in the hoist extends out of a hoist body; a rotary table is arranged on the hoist shaft; the rotary table is provided with a handle; a pulley is arranged on the pulley frame; a sling is placed on the pulley; both ends of the sling are respectively connected with the hoist and a hook.

The invention relates to a method for producing recycled polyester by replacing waste cloth or bubble materials with friction materials. The method comprises the following steps: (1) pretreating wastecloth; (2) grinding the pretreated waste cloth by a friction material machine so as to obtain a friction material; (3) conveying the friction material into a reactor by a pipeline for carrying out analcoholysis reaction, adding EG, the friction material and a catalyst into an alcoholysis kettle, carrying out an alcoholysis reaction at a temperature of 220-230 DEG C so as to produce BHET (Bs(2-Hydroxyethyl)Terephthalate), doffing and filtering to separate cotton impurities in the BHET liquid, concentrating to separate excessive EG from the BHET liquid, feeding the concentrated BHET liquid into an ester exchange kettle to carry out an ester exchange reaction with methanol, reacting to produce DMT (Dimethyl Terephthalate), performing centrifugal separation and distillation on the DMT liquidso as to obtain a pure DMT liquid serving as a raw material for producing the recycled polyester, carrying out an ester exchange reaction with the EG to produce the BHET, feeding the BHET into a polymerizing pot to carry out a polymerization reaction so as to produce PET (Polyethylene Terephthalate), thereby obtaining the final product. The method disclosed by the invention is simple in process and has wide application prospects.

The invention discloses a wheel type air pick energy storage coke removing machine, and relates to the technical field of machinery. The wheel type air pick energy storage coke removing machine is characterized in that the bottom end of a frame plate and wheels are rotatably connected; the frame plate is fixed to a pneumatic device; an output end of the pneumatic device is fixed to the upper ends of supports; an annular gear on the frame plate is in occlusion with a circular gear on an output shaft of a gearbox connected with a rotating motor on a rotating body; an annular rail on the frame plate is movably connected with a rail wheel of the lower end of the rotating body in a rolling manner; the upper end of the rotating body is fixed to the lower end of a frame body; the frame body is fixed to the pneumatic device; the output end of the pneumatic device is fixed to a lifting arm; the upper end of the lifting arm and the lower end of a master arm, the upper end of the master arm and the lower end of a linkage arm, and the upper end of the linkage arm and a sleeve are rotatably and movably connected through servo motors; the back end inside the sleeve is fixed to the pneumatic device; the output end of the pneumatic device is fixed to the back end of a telescopic cylinder; the front end of the telescopic cylinder is fixed to the back end of an air pick; the upper surface of the front end of the air pick is fixed to a camera; the front end of the air pick is fixed to the back end of a steel chisel; and the sleeve and the telescopic cylinder are in plug-in mounting and the front part of the sleeve and the back part of the telescopic cylinder are movably connected in a sliding manner. The wheel type air pick energy storage coke removing machine is used for removing cokes of a utility boiler, and is simple and ingenious in structure, stable in effect, easy to manufacture, and low in cost.

The invention relates to an image detection system for vehicle-mounted communication and signal equipment of a bogie underneath a vehicle, and relates to an communication and signal vehicle image detection technology. Aiming to solve the problems of low detection efficiency and poor reliability when the communication and signal equipment of the bogie underneath the vehicle is detected through a manual detection method, the system is characterized in that a first shooting camera acquires an image of an electronic label; a second shooting camera acquires an image of a machine sense hanging bracket; a third shooting camera acquires an image of a vehicle speed sensor; a fourth shooting camera acquires an image of a vehicle number; a wheel sensor acquires the vehicle speed information of the communication and signal vehicle and outputs the vehicle speed information in the form of a sensing signal so as to ensure that the communication and signal vehicle preferentially passes through the wheel sensor; a DSP control board is connected with the wheel sensor; the DSP control board is connected with a differential signal processor; the differential signal processor is connected with the first shooting camera, the second shooting camera, the third shooting camera and the fourth shooting camera; and the images shot by the four cameras are stored in a storage server through a computer. Thesystem has the beneficial effects of high detection efficiency and strong reliability.

The invention discloses a movable copper and lead hoisting device. A bracket is composed of a beam, a top plate and an underframe, and an armrest frame is arranged on the beam; two shaft buckles are arranged on the underframe, a shaft is sleeved with the two shaft buckles, a wheel frame is welded to each end of the shaft, a wheel is installed on each wheel frame, and a rotating rod is welded to the middle of the shaft; a crane hoist and a pulley frame are installed on the top plate, one end of a crane hoist shaft arranged in the crane hoist stretches out of the crane hoist, a rotating disc isinstalled on the crane hoist shaft, and a handle is arranged on the rotating disc; and a pulley is installed on the pulley frame, a hoisting rope is arranged on the pulley, and the two ends of the hoisting rope are connected with the crane hoist and a hook.