30results about How to "Reduce the number of laying" patented technology

The invention discloses a serial distributed analog quantity airborne acquisition system, which comprises an integrated control host, a bus controller and a bus interface module, wherein the integrated control host is formed by a high-performance workstation and is in communication with the bus controller through a switch; the bus controller realizes convergence and basic data processing of acquisition information of the bus interface module, and completes switch transmission and time synchronization of data through the switch; different types of sensors are additionally arranged on the bus interface module, so that signal conditioning and data acquisition of various parameters are achieved. According to the system, signal conditioning units are installed near the sensors based on an RS485bus technology, each signal conditioning unit is connected to the acquisition system through a wire, so that the cable laying number of the whole system is greatly reduced, the reliability of the system is improved, the system is suitable for being installed and tested in a narrow space, and the problems of too much testing cables, large refitting workload, complex penetrating coordination and the like of a large-scale civil aircraft are effectively solved.

The invention discloses a data signal and DC power source collinear transmission system and method. When the front equipment will send data to the rear equipment, data signals are input into the data receiving end of the front circuit; the front circuit encodes the data input and outputs synchronous PWM signals, to boost PWM signals so that the voltage of PWM signals on the first terminal is higher than that of DC power source; the mixed signals composed of PWM signals and DC power source signals are transmitted to the rear equipment through two-wire system bus; after signals are transmitted to the rear circuit, PWM signals and DC power source signals separate, and DC power source signals are output to DC power source output interface; the rear circuit conducts analysis treatment of synchronous PWM signals input and outputs corresponding data signals. In the invention, the whole system has a centralized power supply and collinear transmission of DC power source and high-speed data signals is realized in the two-wire system, which reduces the quantity of laid cables and system cost in monitoring and control of the system.

The invention provides a quick-repairing method for an urban power distribution room. The quick repairing method can solve the problems that during power distribution room repairing, the blackout time is long, cost is high and efficiency is low, and can guarantee normal power supply for residents. The quick-repairing method comprises the following steps that firstly, a set of high-voltage reserved interfaces are additionally arranged at the second 10kV wire inlet end of the power distribution room, and a first low-voltage reserved interface and a second low-voltage reserved interface are additionally arranged on a 0.4kVI section bus and a 0.4kVII section bus of the power distribution room respectively; secondly, a box transformer substation vehicle arrives at the site, a bypass circuit cable of the box transformer substation vehicle is unfolded; thirdly, a superior switch at the second10kV wire inlet end is turned off, a wire inlet cable of a second high-voltage switch and a ring main unit are disconnected, and protection is carried out; fourthly, working is carried out according to the sudden failures of the ring main unit or the routine repairing of the ring main unit or failures of any transformer. The quick-repairing method is suitable for the power distribution room, and also suitable for fast repairing of network distribution box type transformers, column transformers, switching stations and other network distribution devices.

The invention discloses an RFID ground beacon based route fitting positioning method of a rail transit train. The method comprises the following steps: sending an EPC code to a read-write terminal of a vehicle-mounted ground beacon through a passive ground beacon; sending the EPC code to a computer of a ground monitoring center system of the rail transit train through a vehicle-mounted positioning system; searching a positioning database copy through the vehicle-mounted positioning system using the EPC code as an index; performing fitting positioning on adjacent ground beacons through the vehicle-mounted positioning system based on the route fitting parameters provided by the positioning database; searching the positioning database through the rail transit train ground monitoring center system using the EPC code as the index; and then performing fitting positioning on adjacent ground beacons through the rail transit train ground monitoring center system according to the route fitting parameters provided by the positioning database. With the adoption of the method, the hardware structure and algorithm of an existing train track reckoning system are simplified; the quantity of paved ground beacons is decreased. Therefore, the positioning accuracy is improved, and as a result, the system reliability is improved.

The invention discloses a non-fixed-point type charging pile for an underground garage. The charging pile comprises a top seat, an advancing track is arranged at the bottom of the top seat; a reversing device is arranged in the top seat and communicates with the advancing track, a moving mechanism is arranged in the advancing track, the lower end of the moving mechanism is arranged in the shell, an inserting structure is arranged on the left side in the shell, a hoisting mechanism is arranged on the right side in the shell, and a control mechanism is arranged at the bottom of the shell. In thenon-fixed-point charging pile for an underground garage, a reversing device, an advancing track and a moving mechanism are arranged. The first compression spring pushes the turning guide block to beembedded into the main rail; the rotating direction of the gear is changed, so that the gear moves into the auxiliary rail through the second rack, the shell accurately moves to the position above thedesignated parking space, components in the shell are electrically connected with an external power source to complete charging of the electric vehicle, the laying number of charging piles is reduced, meanwhile, the number of the charging piles can be increased or decreased at any time, and use is more practical.

The invention discloses an indoor navigation method and system and a storage medium. The indoor navigation method includes the steps that according to indoor topographic information, an indoor map isdrawn; according to the indoor map, path planning information of all areas is obtained; according to a current position of a terminal, a first device and a second device are obtained; according to thefirst device and the second device, a longitudinal two-dimensional coordinate graph is generated; according to the longitudinal two-dimensional coordinate graph, the current position information of the terminal is computed; according to the current position information of the terminal and the path planning information of all the areas, walking paths of pedestrians are generated. According to theindoor navigation method and system and the storage medium, only through the first device and the second device, the current position information of the terminal can be obtained after computing, the walking paths of the pedestrians are generated based on the current position information, and therefore the pedestrians can be navigated to specified end points under reasonable guidance; compared withan existing method for indoor positioning through three or above devices, through the indoor navigation method, the device laying quantity is decreased, the cost is reduced, and the method can be widely applied to the technical field of navigation.

The invention relates to a transmission system adopting MIMO signal bidirectional feed-in leakage cables. The transmission system comprises a radio frequency unit, at least one bidirectional leakage cable, a first three-port circulator, a matched load, a radio frequency electrical-to-optical converter, optical fibers, a radio frequency optical-to-electrical converter, a time delay compensation module and a second three-port circulator. Two-way signals output from the radio frequency unit are fed in the leakage cables from two ends; the circulators are added at the two ends of the leakage cables to ensure one-way circulation of the two-way signals and the orthogonality of the MIMO signals is ensured through remote optical fibers and the time delay compensation module. The two-way MIMO signals are bidirectionally fed in the leakage cables to expand the leakage cable structure, so that the multi-path signal transmission can be realized. The number of a plurality of traditional leakage cables for transmitting the MIMO signals is reduced by half via the transmission system. The transmission system without changing a transmitter framework is high in compatibility and is used in linear overlay communication scenes, and can improve the communication performance in the linear overlay communication scenes.

The invention provides a plugging-connection charging type lifting transverse-moving stereo garage comprising a lifting transverse-moving stereo garage body, a plugging-connection charging device anda charging control box. The plugging-connection charging device comprises charging plugs and a charging gun; the charging plugs comprise the first charging plugs, the second charging plugs and the third charging plugs; the first charging plugs are mounted on a second-layer vehicle carrying plate upwards; the second charging plugs are mounted on a garage frame downwards; the third charging plugs are mounted on a first-layer vehicle carrying plate; when the second-layer vehicle carrying plate falls or rises, the first charging plugs and the second charging plugs are separated or make contact, and accordingly a second-layer charging circuit is switched off or switched on; the second charging plugs and the third charging plugs are connected with the charging control box, the charging control box is connected with an external power source, and the first-layer charging circuit is switched on all the time. The charging type lifting transverse-moving stereo garage is simple and reliable in structure, the laying length and the laying number of cables are decreased while charging parking places are expanded, the charging cost is reduced, and an existing charging type lifting transverse-moving stereo garage is improved.

The invention relates to a rail transit wireless MIMO communication transmission system of signal bi-directional feed-in leakage cable, and includes a first far-end radio frequency unit, a second far-end radio frequency unit, a first multi-port combiner, a second multi-port combiner, a radio frequency electro-optical converter, an optical fiber, a radio frequency photoelectric converter, a time delay compensation module, a third multi-port combiner, a fourth multi-port combiner, single bi-directional leakage cables, at least one first redundant backup far-end radio frequency unit, and at least one second redundant backup far-end radio frequency unit. The system is applied to rail transit communication to realize multithread signal transmission, can reduce half of the laying number of leakage cables, and has efficient MIMO performance, engineering cost is greatly reduced, and construction and maintenance are simplified. The rail transit wireless MIMO communication transmission system satisfies a requirement of uplink and downlink communication, is suitable for frequency division duplex and time division duplex communication, can be used for MIMO signal coverage of a rail transit communication system, and supports a situation of multi-frequency redundancy networking.

The invention discloses a distributed illumination intelligent control system. A light intensity demand value required by a user is calculated according to a relation between attenuation of light intensity of a point light source in air and a distance; then the light intensity of the surrounding lighting units is adjusted according to the light intensity demand value of the user and the change of the distance between the user and each lighting unit, so that dynamic adjustment is achieved, it is guaranteed that the light intensity of the position where the user is located can be always kept or close to the light demand value in the moving process of the user, and the use experience of the user is improved; according to the invention, firstly, the GPS positioning module is adopted to acquire the position information of the user, then the distributed image acquisition units are adopted to acquire the image picture of the corresponding area, and the specific position of the user in the working area of the illumination module is determined according to the position of the user in the image picture, so that the accurate control of the illumination module is facilitated.

The invention provides a distributed train wheel set size detection system. The system can greatly reduce the number of lines laid from an indoor control system to a rail edge image detection box, greatly improve the stability of the system, and bring more convenience for maintenance personnel to carry out system maintenance. The system comprises, sequentially connected, an image detection box used for acquiring a train wheel set image; a central controller used for controlling the image detection box, detecting the train wheel set image acquired by the image detection box and outputting a train wheel set size detection result; and an Ethercat communication unit used for communication between the image detection box and the central controller.

The invention discloses a method for rapidly laying auxiliary materials. The method comprises the following steps of 1) manufacturing a PVC triangular runner and a runner base plate into an integrally-formed component through an integral forming process, and placing a glue guide port above the triangular runner at a position with a glue injection port; 2) manufacturing demolding cloth, a porous film and a flow guide net into an integrated composite sleeve material; and 3) fixing the integrally-formed component on the integrated composite sleeve material. According to the technical scheme, an auxiliary material laying technology is provided for skin forming of main forming in the wind power blade manufacturing process; the technology is that the auxiliary materials can be rapidly laid on the skin large cloth; and the technology can reduce the auxiliary material laying frequency, reduce the labor force of workers and improve the working efficiency.

The invention relates to a high and low temperature resistant anti-interference composite flexible cable for an unmanned aerial vehicle. The cable comprises a communication cable core, and a signal transmission cable core, a power supply cable core and a filling cable core which are stranded outside the communication cable core in a cabling structure mode to ensure the concentricity of the cable,and the signal transmission cable core, the power supply cable core and the filling cable core are sequentially coated with a cable cabling wrapping tape, a cable cabling main shielding layer and a cable cabling sheath. A power line, a signal transmission line, a communication transmission line and other electric wires with different functions are integrated into one cable, the number of laid cables is reduced, the cable assembly time is saved, and the cable installation efficiency is improved. In addition, wires with different functions are integrated, so that the convenience of a cable useris improved from the source; and moreover, the cable is stable in structure, can improve the work efficiency during the connection or replacement and standby application of the connector, saves the cost, and guarantees the quality.

The invention discloses a shallow water cluster well mouth skid-mounted production system. The shallow water cluster well mouth skid-mounted production system comprises bottom skids, permanent guide base discs are installed at the positions, at an oil field well mouth, of the bottom skids, the bottom skids are provided with Christmas trees fixedly connected with the permanent guide base discs through guide columns in a guiding mode, an underwater distribution unit assembly composed of a hydraulic distribution box, a power distribution box and a control distribution box is arranged on one sideof the bottom skid; and collecting pipes and output pipes are arranged at the side ends of the Christmas trees, the collecting pipes are in communication with the Christmas trees through branch Christmas pipes, the collecting pipes are in communication with the output pipes through conveying pipes, the output pipes and the collecting pipes between the adjacent Christmas trees are fixed through connecting flanges, gate valves are arranged on the conveying pipes, and gate valves are arranged at the output end of the collecting pipes; and an output interface is arranged at a port at the tail endsof the output pipes. The cluster well mouth skid-mounted production system is suitable for oil field group exploitation in a shallow water sea area, low in cost and convenient to manage in a unifiedmode.