37results about How to "Reduce failure links" patented technology

Provided is a nuclear power plant radioactive exudation monitoring system which comprises an airborne radioactive exudation monitoring system. The airborne radioactive exudation monitoring system comprises a heating unit. The heating unit is used for heating gases in a part, outside a chimney, of a sampling pipeline where an aerosol and iodine monitor in the airborne radioactive exudation monitoring system is located, and a part, outside a chimney, of a sampling pipeline where an aerosol and iodine sampler is located. The nuclear power plant radioactive exudation monitoring system may prevent aerosol and iodine steam condensation caused by a decrease in ambient temperature and may increase aerosol and iodine acquisition efficiency. Further, a compressor is arranged on the upstream of an inert gas sampling bottle so as to increase gas concentration. In a high radioactivity monitoring system, a lead shielding device is arranged outside the inert gas sampling bottle and the aerosol and iodine sampler in order to improve protection of workers against radiation. A liquid radioactive exudation monitoring system is improved, simplified in structure, and decreased in fault links. A flowmeter is provided in order to compute total discharge activity.

The invention discloses a safety remote control system used for an electric vehicle, and a control method of the safety remote control system. The safety remote control system comprises a vehicle-mounted unit and a non-vehicle-mounted unit, wherein the vehicle-mounted unit and the non-vehicle-mounted unit are connected through a mobile data network; the non-vehicle-mounted unit comprises a remote platform server and a plurality of user terminals connected with the remote platform server; the vehicle-mounted unit comprises a data terminal and a centralized controller connected with the data terminal, and the centralized controller is further connected with a plurality of action execution units; the centralized controller comprises a complete vehicle control unit and a plurality of action control units connected with the complete vehicle control unit; each action control unit is connected with the corresponding action execution unit; and complete vehicle control unit is further connected with the data terminal. The safety remote control system simplifies and integrates vehicle-mounted control units into the independent centralized controller, thereby reducing the complexity of the structure and links of the safety remote control system, reducing failure links, and being simple and reliable.

The invention provides a signal processing platform applicable to a multi-sensor self-adaption optical system. The signal processing platform comprises a plurality of signal processing modules (1) with a bus switch, an interconnection rear panel (2) based on a CPCI (Compact Peripheral Component Interconnect) bus structure, an expansion I / O (Input / Output) board (3) and a monitoring host (4). With the adoption of the structure, the signal processing platform provided by the invention can be used for processing wave-front signals of a plurality of sensors in parallel and combining low-delay data among the sensors in parallel; the good expandability, the generality, the clipping property and the small size of the signal processing platform can be realized due to a dynamic bus structure with a switch and a changeable operation signal processing module structure; and the signal processing platform is applicable to processing the self-adaption optical wave-front signals in various applicable fields.

The invention discloses a traction control system and a method for positioning, calculating and correcting a traction position. The system comprises a steel wire rope rotation wheel transmission system, a rail reciprocating vehicle and rotary encoders which are used for detecting the rotation positions of the steel wire rope rotation wheels; the rail reciprocating vehicle is provided with a permanent magnet; magnetic limit switches for sensing the permanent magnet are arranged on one side of a rail where the rail reciprocating vehicle runs; the rotary encoders and the magnetic limit switches output detection signals to a controller; and the controller is used for calculating the traction position according to the detection signals fed back by the rotary encoders, judging the running interval of the rail reciprocating vehicle according to the detection signals fed back by the magnetic limit switches and calculating and correcting the traction position to generate the current position of the rail reciprocating vehicle. By a double positioning detection mode that the rotary encoders are matched with the limit switches, the running position of the rail reciprocating vehicle is corrected and calculated, so that high positioning accuracy and strong reliability can be guaranteed, the structural design is simple, cost is low, and fault links are few.

The invention belongs to the technical field of underground coal mine exploiting equipment, and particularly discloses a rapid coal mine digging and anchoring all-in-one machine applicable for mechanical exploiting operation of large, medium and small sized underground coal mine coal roads and half-coal tunnels. The invention aims to solve the problem that the coal roads and half-coal tunnels are low in digging efficiency, large in worker labor intensity and severe in potential safety hazards. The rapid coal mine digging and anchoring all-in-one machine disclosed by the invention consists of twelve parts such as a walking part, a plate shoveling part, a cutting part, a front supporting part, an engine body part, a control part, two anchoring and drilling parts, a guard plate part, a conveying part, a rear supporting part, a hydraulic system and an electric system; the walking part is arranged below the engine body part; the plate shoveling part is hinged to the front end of the engine body part; the front supporting part is arranged at the middle position of the front upper part of the cutting part; the cutting part is arranged at the middle position of the front upper part of the engine body part; the control part is installed on the left side of the engine body part; the two anchoring and drilling parts are arranged on the left side and the right side of the engine body part; the guard plate part is fixed above the engine body part; the conveying part is arranged in the middle of the engine body part; and the rear supporting part is installed at the back of the engine body part.

The invention belongs to the technical field of underground coal mine developing equipment, particular relates to an efficient rapid rock drift tunneller, and aims at solving the problems that rock drift tunnelling efficiency is low, rock drift forming is poor, the worker labor intensity is large, and many potential safety hazards exist. The efficient rapid rock drift tunneller comprises a walking part, an insertion board part, two cutting arms, a telescopic part, an engine body part, a control part, a guard board part, a conveying part, a rear support part, two hydraulic systems and electric systems; the walking part is arranged below the engine body part, the insertion board part is hinged to the front end of the engine body part, the telescopic part is arranged in the middle of the upper front portion of the engine body part, the cutting arms are symmetrically arranged on the left side and the right side of the upper front portion of the engine body, the conveying part is arranged in the middle of the engine body part, the rear support part is installed on the rear portion of the engine body, the hydraulic systems are symmetrically arranged on the left side and the right side of the middle of the engine body part, an operating part is installed above the engine body part, the guard board part is fixed on the two sides of the engine body part, and the electric systems are arranged on the two sides of the tail part of the engine body part.

The invention discloses an electric vehicle hydraulic control pump / motor power assisting system, and belongs to the technical field of hydraulic transmission. The electric vehicle hydraulic control pump / motor power assisting system comprises a main loop consisting of a pump / motor (5) and energy accumulators (9) and (10), a power assisting control loop consisting of a hydraulic control proportioning valve (4) and a power assisting cylinder (20) and a brake control loop consisting of the hydraulic control proportioning valve and a brake cylinder (14). The pump / moor is meshed with an electric motor (2) and a drive axle through a power divider (3). During braking, a vehicle inertia driving pump is used for charging the energy accumulators, and the pump generates a braking torque for a vehicle. When the vehicle starts to run, the energy accumulators supply oil for the motor to assist the electric motor in driving, and the overloading of a power battery is prevented, thus the service life of the vehicle is prolonged. The output oil pressure of the hydraulic control proportioning valve can be controlled through a brake pedal (16) and an accelerator pedal (22), and the discharge capacity of the pump / motor is adjusted, thus the hydraulic brake and power assisting strength is controlled. The electric vehicle hydraulic control pump / motor power assisting system has the characteristic that full hydraulic control is adopted, and has the advantages of high environmental suitability and high reliability.

The invention discloses a stepping motor subdivision control system and a control method thereof. The system comprises an FPGA, a power driving chip, a two-phase stepping motor and a harmonic reducerwhich are connected in sequence. The FPGA comprises a comparator module, a sine and cosine signal module, outputting sine and cosine signals to the comparator module; a sawtooth wave signal module, outputting sawtooth wave signals to the comparator module. The comparator module compares the sine and cosine signals with the sawtooth wave signals and outputs PWM signals, and the duty ratio of the PWM signals changes according to the rule of the sine and cosine signals. According to the stepping motor subdivision control method provided by the invention, a D / A conversion circuit in a traditionalstepping motor control scheme is deleted, and a PWM signal is generated directly through a digital signal comparison mode to drive the stepping motor to rotate, so that the engineering cost is reduced, and the system reliability is improved.

The invention relates to a three-position rotary transceiver, which comprises a cabinet body. The three-position rotary transceiver is characterized in that a lower plate which is uniformly provided with three position holes and can be rotated is arranged in the cabinet body, the three position holes are coaxially arranged with an upper pipe section and a lower pipe section which are installed in the cabinet body after the lower plate is rotated, wherein a No. I position middle pipe section is installed in the No. I position hole, a No. II position middle pipe section is installed in the No. II position hole, the upper end opening of the No. II position middle pipe section cannot pass through a container, and a container connecting box is installed below the No. II position middle pipe section. According to the three-position rotary transceiver, a servo motor is adopted as a driving device and controlled by a PLC (Programmable Logic Controller) of a whole system, the three-position rotary transceiver is rotated in accordance with a given instruction, and after the three-position rotary transceiver is rotated to a proper position, the three-position rotary transceiver is automatically shut down and braked. The three-position rotary transceiver which is directly driven by the servo motor has the advantages of less fault link, simple structure and high degree of automation.

The invention belongs to the field of an underwater connector, and particularly relates to a segmental watertight connector. The segmental watertight connector is mounted on underwater operation equipment. A socket has a housing, a jack and a guiding hole, wherein the jack and the guiding hole are in a first rubber sulfuration sealing member. One end of the jack is connected with a lead, and the other end is provided with an independent inner chamber. An annular projection exists in the inner chamber. A plug is provided with a plurality of second rubber sulfuration sealing members. Each secondrubber sulfuration sealing member is provided with a pin and a guiding pin. Furthermore the bottom of each pin is provided with an independent rubber insulating rod. One end of the pin is connected with a lead in a cable, and the other end is inserted into the jack. The rubber insulating rod is inserted into the inner chamber and abuts against an annular projection in a sealed manner. The socketand the corresponding plug according to the invention can be plugged in a wet environment and can be used in shallow sea and deep sea and furthermore have reliable sealing performance. The socket andthe corresponding plug are suitable for electric signal transmission in various kinds of underwater operation equipment. Furthermore connection of a plurality of plugs with cables with the equipment through one socket can be realized.

The invention relates to an electric locomotive cooling system, comprising liquid medium cooling loops for cooling a main converter, a main transformer and a water-cooled traction motor respectively, and a combined cooler; liquid tanks of the combined cooler are connected respectively with the corresponding liquid medium cooling loops, a heat-absorbing line of a compression refrigerator is in S-shaped round-strip distribution in the liquid tanks of the combined cooler and is soaked in the liquid cooling medium. The radiating efficiency of the main converter, main transformer and traction motor of an electric locomotive is greatly improved, a lot of axial-flow fans are omitted, equipment weight is reduced, less space is used, fan noise is avoided, there is no stain and solid flocculent accumulation outside the combined cooler, equipment false steps are decreased, and equipment maintenance cost is reduced.

The invention discloses a multi-service Ethernet gateway system. The multi-service Ethernet gateway system comprises an accessing unit used for accessing service data of the system, an extended unit used for extending the service data of the system, a gathering unit used for gathering the service data of the system, and a transmitting unit used for transmitting the service data of the system to a preset device. The multi-service Ethernet gateway system is reasonable in design, strong in processing ability, short in self-healing time, good in reliability and stability and capable of reducing device failure, lowering user cost, simplifying the network and improving network reliability.

The invention discloses a control method for power generation by the water level. The control method is applied to a power generation system of a hydropower station. The power generation system comprises a first power generator, a second power generator, ... and an Nth power generator, and the value of N is a positive integer. An ith power generator executes the the following steps: judging whether the acquired first water level reaches the upper-limit water level of the ith power generator, starting up the ith power generator if yes, controlling the ith power generator to output a shut-down signal, and shutting down other started-up power generators except the ith power generator, wherein the value of i is equal to 1, 2, ... and N; acquiring the current regulating pulse width according tothe first water level; and controlling the active load of the running of the ith power generator to reach the active power Pi which corresponds to the current regulating pulse width. According to thecontrol method disclosed by the invention, one power generator can run on an economical water line as long as the water level information is acquired, so that the equipment cost is relatively low; furthermore, all power generators can be sequentially started up according to variations of the water level, so that no additional control equipment is needed; and accordingly, the quantity of fault links can be reduced.

The invention discloses an in-mold shearing cylinder of an aluminum extruder, and relates to a cylinder of an aluminum extruder. The in-mold shearing cylinder solves the problems that oil is easy to deteriorate and the sealed cylinder is aged and damaged. The in-mold shearing cylinder is characterized in that: a piston rod is connected with a detection rod through a pressure plate by using screws; the detection rod is provided with a No.1 passage for hot oil circulation; the piston rod is provided with a No.2 passage which is communicated with the No.1 passage and used for hot oil circulation; a hydraulic system consists of a main pump system and a circulating cooling system; in the main pump system, a reversing valve, a one-way throttling valve and a port A and a port B of the cylinder body form a loop; in the circulating cooling system, a reversing valve, a hose, a one-way valve, a port C of the detection rod, the No.1 passage, the No.2 passage and a port B of the cylinder body forma loop; and the upper end of the cylinder body is provided with a longitudinal drainage groove. The in-mold shearing cylinder reduces the fault link of the aluminum extruder, and improves the work efficiency.

This invention is related to a fluid commutating clutch. Its oil route is: two transitional tie-ins on the shell-two counterpart oil routes-two independent oil routes of the initiative axletree-the chamber of oil jar of the front and the back clutches; the cover of the counterpart route is fixed on the front end, the oil jar is connected with the initiative axletree. This clutch has simple structure and equipping process, the oil route is hermetic and reliable, the performance of operation is sound and the time of usage is long. This invention is related to the multi-functional tractor that uses the above clutch. The tractor not only has the strong points of this clutch, but also it is assembled more reasonably. The concentric degree of the initiative axletree of the fluid clutch and the output axletree of the motor is higher.

The invention provides a locomotive short-distance wireless communication control system. A driver control unit is communicated with region control units by a short-distance wireless manner; all signal acquisition devices and execution devices on a locomotive are nearby divided into all control regions; each control region is internally provided with one region control unit; the region control units in the control regions are used for receiving signals transmitted by the signal acquisition devices by lead wires and transmitting control instructions to the execution devices; a driver controls the generated driver control instructions to be transmitted to a locomotive control center by the driver control unit; the locomotive control center is used for transmitting execution instructions to all the region control units; and all the region control units are used for transmitting the signals transmitted by the signal acquisition devices in the regions to the locomotive control center. According to the locomotive short-distance wireless communication control system, the quantity of solid lead wires is greatly reduced and locomotive fault links are reduced; holes which are used for wiring and are formed in all steel structures are reduced; reconnection control does not need solid connection wires; and the portable driver control unit can realize under-locomotive operation.

The invention discloses a pressure self-adaptive switching hydraulic logic control device for main and auxiliary hydraulic cylinders. The pressure self-adaptive switching hydraulic logic control device comprises the main cylinder and the auxiliary cylinder, wherein the main cylinder and the auxiliary cylinder are parallelly and rigidly connected on a load, a first electromagnetic directional valve is connected to the main cylinder, a pressure regulating valve, a throttling valve and a second electromagnetic directional valve are sequentially connected to the auxiliary cylinder, a first logic valve and a second logic valve are respectively connected between the pressure regulating valve and the auxiliary cylinder, and the first logic valve is connected between the main cylinder and the first electromagnetic directional valve. The pressure self-adaptive switching hydraulic logic control device can completely achieve functions achieved in an existing control mode, the links easily causing faults are decreased, the problems including slippage and the like occurred in quiver, switching impact and a static state are eliminated by relying on the intrinsic rapidity, sensitivity and reliability of pressure self-adaption, and the main and auxiliary hydraulic cylinders are smoother to switch and greatly meet the working condition requirements of the pressure self-adaptive switching hydraulic logic control device.

The invention relates to a movable sensor insertion system device. The device consists of a traveling system, a reciprocating insertion system and an automatic control system; by the reciprocating insertion system loaded on the traveling system, a sensor is vertically inserted into the ground under the control of the automatic control system and a reciprocating pneumatic piston in the reciprocating insertion system pressurizes to keep the sensor being to be tightly coupled with a detected target; a manual mode is completely replaced to carry out sensor insertion. According to the invention, the pressure and the direction of inserting the sensor can be accurately regulated according to requirements of exploration; large-scale sensor array connection can be implemented; compared with a mode of manually inserting the sensor, the movable sensor insertion system device has the characteristics of rapidness, simplicity and convenience for inserting the sensor, reliable connection and guarantee of tight coupling between the sensor and the ground; rapid and continuous movable measurement is revolutionarily implemented in the field of land seismic exploration.

The invention provides a signal processing platform applicable to a multi-sensor self-adaption optical system. The signal processing platform comprises a plurality of signal processing modules (1) with a bus switch, an interconnection rear panel (2) based on a CPCI (Compact Peripheral Component Interconnect) bus structure, an expansion I / O (Input / Output) board (3) and a monitoring host (4). With the adoption of the structure, the signal processing platform provided by the invention can be used for processing wave-front signals of a plurality of sensors in parallel and combining low-delay data among the sensors in parallel; the good expandability, the generality, the clipping property and the small size of the signal processing platform can be realized due to a dynamic bus structure with a switch and a changeable operation signal processing module structure; and the signal processing platform is applicable to processing the self-adaption optical wave-front signals in various applicable fields.

The invention discloses a PLC (programmable logic control)-free servo control system for a suspended flyer roving frame. The PLC-free servo control system comprises a flyer motor, a roller motor, a winding motor, a keel motor, a first driver, a second driver, a third driver and a fourth driver. The first driver is electrically connected with the flyer motor and is used for controlling operation of the flyer motor, the second driver is electrically connected with the roller motor and is used for controlling operation of the roller motor, the third driver is electrically connected with the winding motor and is used for controlling operation of the winding motor, the fourth driver is electrically connected with the keel motor and is used for controlling operation of the keel motor, the first driver computes and adjusts the working rotational speed Ns of the flyer motor and feedback pulse signals of an encoder of the flyer motor according to preset values, and outputs the pulse signals to the second driver and the third driver, and the second driver, the third driver and the fourth driver constantly adjust operation rotational speeds of the roller motor, the winding motor and the keel motor respectively on the basis of the received pulse signals. The PLC-free servo control system has the advantages that fault links are effectively reduced, and PLC is omitted.

The invention relates to the field of rail transit, in particular to a continuous seamless rigid contact suspension net system for rail transit and an installation method thereof, comprising an anchor joint and a plurality of expansion sections, and two adjacent expansion sections are connected by an anchor joint, and the The anchor joint is fixedly connected with the support structure; the expansion section includes a bus bar and a sliding positioner, the bus bar is bent and arranged in a plane parallel to the rail surface, and a plurality of the sliding positioners are arranged on the bus bar, so The sliding positioner is connected to the support structure, and the sliding positioner can keep the busbar horizontal and allow the busbar to slide in a direction perpendicular to the line. When the temperature of the working environment changes, the invention can automatically compensate the expansion and contraction change of the length of the expansion section through the bending deformation of the expansion section, cancel the expansion joint, improve the current receiving conditions of the pantograph, and reduce the impact of the expansion joint on the dynamic performance of the pantograph. influences.

The invention discloses an electric vehicle hydraulic control pump / motor power assisting system, and belongs to the technical field of hydraulic transmission. The electric vehicle hydraulic control pump / motor power assisting system comprises a main loop consisting of a pump / motor (5) and energy accumulators (9) and (10), a power assisting control loop consisting of a hydraulic control proportioning valve (4) and a power assisting cylinder (20) and a brake control loop consisting of the hydraulic control proportioning valve and a brake cylinder (14). The pump / moor is meshed with an electric motor (2) and a drive axle through a power divider (3). During braking, a vehicle inertia driving pump is used for charging the energy accumulators, and the pump generates a braking torque for a vehicle. When the vehicle starts to run, the energy accumulators supply oil for the motor to assist the electric motor in driving, and the overloading of a power battery is prevented, thus the service life of the vehicle is prolonged. The output oil pressure of the hydraulic control proportioning valve can be controlled through a brake pedal (16) and an accelerator pedal (22), and the discharge capacity of the pump / motor is adjusted, thus the hydraulic brake and power assisting strength is controlled. The electric vehicle hydraulic control pump / motor power assisting system has the characteristic that full hydraulic control is adopted, and has the advantages of high environmental suitability and high reliability.

The invention discloses a method of SDIOverIP multiplexing port data. The specific operation method is as follows: (1) starting a client process for acquiring SDIOverIP port data, judging whether there is a server process of a corresponding port, if there is no server process of a corresponding port, entering a step (2), starting a server process, and entering a waiting state for acquiring data; If the server process of the corresponding port already exists, entering the step (3) and waiting for obtaining the data state; (2) acquiring SDI data through the SDIOverIP acquisition card and converting the data into an exchange file or a shared memory by the server process; (3) obtaining SDI data from the swap file or shared memory by the client process . The invention has the advantages of effectively simplifying the topology structure, reducing the fault links and reducing the input of additional equipment.

The invention belongs to the technical field of underground coal mine developing equipment, particular relates to an efficient rapid rock drift tunneller, and aims at solving the problems that rock drift tunnelling efficiency is low, rock drift forming is poor, the worker labor intensity is large, and many potential safety hazards exist. The efficient rapid rock drift tunneller comprises a walking part, an insertion board part, two cutting arms, a telescopic part, an engine body part, a control part, a guard board part, a conveying part, a rear support part, two hydraulic systems and electric systems; the walking part is arranged below the engine body part, the insertion board part is hinged to the front end of the engine body part, the telescopic part is arranged in the middle of the upper front portion of the engine body part, the cutting arms are symmetrically arranged on the left side and the right side of the upper front portion of the engine body, the conveying part is arranged in the middle of the engine body part, the rear support part is installed on the rear portion of the engine body, the hydraulic systems are symmetrically arranged on the left side and the right side of the middle of the engine body part, an operating part is installed above the engine body part, the guard board part is fixed on the two sides of the engine body part, and the electric systems are arranged on the two sides of the tail part of the engine body part.

The invention relates to the technical field of gas inflation control, in particular to an automatic sequence gas filling disc special for a gas filling substation. The gas filling disc comprises a support, and further comprises air inflation pipelines, a self-operated high-pressure sequence valve, a self-operated medium-pressure sequence valve and a one-way valve which are arranged on the support, and the inflation pipelines comprise a straight inflation pipeline, a high-pressure inflation pipeline and a medium-pressure inflation pipeline; an output end of the self-operated high-pressure sequence valve is connected to an input end of the high-pressure air inflation pipeline; an input end of the self-operated high-pressure sequence valve is connected to an input end of the straight inflation pipeline; an input end of the self-operated medium-pressure sequence valve is connected to an input end of the medium-pressure air inflation pipeline; an input end of the one-way valve is connectedto an output end of the high-pressure air inflation pipeline; and an output end of the one-way valve is connected to an output end of the straight inflation pipeline. The gas filling disc has the advantages of being simple in structure and few in fault points.