92results about How to "Guaranteed running status" patented technology

The invention discloses a dual-core medical electric bed controller which comprises a control module, a controller, a plurality of motors, a signal processor and a mechanical device. A control signal is sent to the controller by the control module, a plurality of driving signals are sent by the controller, the motors are respectively driven by the driving signals and the driving signals of the motors are synthesized by the signal processor, so that the mechanical device is controlled to move. The driving signals comprise a first driving signal, a second driving signal, a third driving signal, a fourth driving signal, a fifth driving signal, a sixth driving signal, a seventh driving signal, an eight driving signal, a ninth driving signal, a tenth driving signal, an eleventh driving signal, a twelfth driving signal and a thirteenth driving signal. The motors comprise a first motor, a second motor, a third motor, a fourth motor, a fifth motor, a sixth motor, a seventh motor, an eighth motor, a ninth motor, a tenth motor, an eleventh motor, a twelfth motor and a thirteen motor.

The invention discloses a stored energy power station optimizing control method with power prediction considered. The method includes the steps that the control step length of the progressive charge and discharge of a stored energy power station is determined, and a stored energy power station charge and discharge model is built based on the main control strategy and the auxiliary control strategy; a wind power plant stored energy system capacity optimizing target function is built with the optimized operation state of the stored energy power station state of charge (SOC) as the goal, and the charge and discharge power constraint condition and the SOC constraint condition are built; on the condition of meeting the control strategies of the stored energy power station charge and discharge model, solving and computing are conducted on the stored energy system capacity optimizing target function through the PSO algorithm, and the optimized charge and discharge power of the stored energy power station is acquired. The stored energy power station optimizing control method with power prediction considered has the advantages that the charge and discharge converting times of LiB can be reduced effectively on the premise of guaranteeing the operation state of SOC and the leveling effect of all media, the medium features of VRB can be fully played, and the control method is highly efficient and reliable, and certain theoretical value and actual application value are achieved.

The invention provides an intelligent driving vehicle traveling control method and belongs to the technical field of intelligent driving. The problems that due to improper driving of an intelligent driving vehicle in the prior art, economical efficiency and comfort are reduced, and traffic congestion is caused are solved. The method includes the following steps that an intelligent driving functionof an intelligent driving vehicle is started; whether a traffic light exists within the set distance in the advancing direction of the intelligent driving vehicle or not is detected, and if the traffic light exists within the set distance, the intelligent driving vehicle receives information of the positions and the speeds of the own vehicle and a front vehicle and the state of the traffic lightat the same time; the expected accelerated speed and the expected speed of the intelligent driving vehicle for passing through the traffic light are generated, and the intelligent driving vehicle passes through the intersection traffic light according to the expected accelerated speed and the expected speed; and whether a traffic light exists within the set distance in the advancing direction of the intelligent driving vehicle or not is detected continuously. The intelligent vehicle economically and comfortably passes through the intersection traffic light, and a traffic congestion problem caused by improper driving is solved.

The invention provides a magnesite industry energy efficiency analysis and improvement method. A data acquisition module, a data service center and an energy efficiency monitoring center are included. The data acquisition module acquires energy consumption data and energy consumption quality data of the energy efficiency monitoring area, sends original data to the data acquisition terminal, and uploads the original data to the data service center. The data service center carries out calculation, classification, statistics, filing and storage on the data, and creates user management data in combination with information such as enterprises and equipment archives. The energy efficiency monitoring center comprehensively monitors, analyzes and diagnoses the energy use condition of the monitoring area through the data provided by the data service center. Real-time data acquisition and online monitoring are carried out on the operation condition of the whole production cycle, the equipment operation state and the like, comprehensive perception of energy consumption and energy consumption of enterprises is achieved, and the purposes of improving the generation efficiency and reducing the production cost of the enterprises are finally achieved by combining and applying a big data statistical analysis technical means.

The invention discloses a digital evidence obtaining system and method based on data information mirror image restoration through a mobile terminal. The system comprises a native layer, a system framework layer, an application cloning space and a local application space. The native layer is connected with the system framework layer, the application cloning space and the local application space areboth connected with the system framework layer, a mirror image mounting file is arranged in the native layer, and cloning service is arranged in the system framework layer. The method includes the steps of firstly, deriving a mirror image file; secondly, analyzing and mounting the mirror image file; thirdly, establishing simulation service; fourthly, establishing an application cloning space. Byestablishing a layer of virtual device for mapping a reality device, the method of encrypting during writing and decrypting during reading is adopted for data currently required to be processed, and the data analyzing efficiency is effectively improved.

The invention provides a water full control method of an air conditioner and the air conditioner, and relates to the technical field of air conditioners. The water full control method of the air conditioner comprises the steps that the chassis of the air conditioner is detected to be full of water, and the compressor stopped running and alerted; a water beating motor, an outdoor draught fan and an indoor draught fan is controlled to continuously run until the current water level of the air conditioner chassis is detected to be lower than the warning water level, the air conditioner is controlled to be the state before the air conditioner is full of water, and the compressor is normally operated. Compared with the prior art, after the air conditioner chassis water fully enters the self-protection state of the compressor stop, the whole machine is not required to be shut down, by using the water beating atomization function of the water beating motor, the compressor can be restarted automatically, the comfort of a user in the using process is further improved, and the satisfaction degree of a customer on the product is improved.

A three-freedom-degree transmission mechanism comprises a helical pair, a revolute pair and a cylindrical pair. The axis of the helical pair is perpendicular to the axis of the revolute pair, and the axis of the revolute pair is parallel to the axis of the cylindrical pair. The revolute pair comprises a support (7), a movable sliding block (5), the helical pair (3), a nut (4), a left limiting block (1) and a right limiting block (6). The left limiting block (1) and the right limiting block (6) are fixedly arranged on the support (7), and the helical pair (3) is provided with the movable sliding block (5). The transmission mechanism is characterized in that the helical pair (3) mounted on the support (7) and the revolute pair can form 0-degree to 180-degree intersection angles through the movable sliding block (5). According to the transmission mechanism, under the condition of identical number of rotation of a screw rod, the speed of the straight line motion (opening and closing) of the nut (a door leaf) is improved. The mechanical locking of a vehicle door is achieved without another set of mechanical locking mechanism. The transmission mechanism is simple, the motion procedures of unlocking and locking are removed, procedure control is simplified, and two fault hazards are eliminated.

The invention provides a control method and a system of refrigeration equipment, the refrigeration equipment and a readable storage medium, wherein the control method of the refrigeration equipment comprises the following steps of: acquiring operating parameters of the refrigeration equipment and acquiring an outlet water temperature of the refrigeration equipment; determining that the operating parameters meet the unloading conditions and the outlet water temperature is lower than or equal to a first outlet water temperature, controlling the refrigeration equipment to perform the load unloading operation until the outlet water temperature is higher than or equal to a second outlet water temperature, and stopping the load unloading operation, wherein the second outlet temperature is higherthan the first outlet temperature. According to the technical scheme provided by the invention, when an unloading mode is exited, a trigger temperature for stopping the load unloading operation is increased to the second outlet temperature, so that after the unloading mode is stopped, a unit can be ensured to maintain an operating state for a period of time, repeated unloading caused by lower working conditions of users is avoided, fluctuation of outlet water temperature is effectively reduced, and user experience is ensured.

The invention discloses a control method for ensuring air inlet flow precision. The control method for ensuring air inlet flow precision comprises an engine, and further comprises an air filter, a flow sensor, an air compressor, an intercooler and a throttle valve which are sequentially connected to an air inlet pipeline of a cylinder body, a turbine, a post-processing system and a silencer are sequentially connected to an exhaust pipe of the cylinder body, an ECU is connected to an engine, a calibration value MAP of the air inlet flow is calibrated in the ECU, the flow sensor is electricallyconnected with the ECU, the flow sensor measures the real-time air inlet flow Q of the air inlet pipeline of the cylinder body, and the calibration value MAP is compared with the real-time air inlet flow Q; when the difference value between the calibration value MAP and the real-time air inlet flow Q is greater than a set range A, maintenance reminding of the flow sensor is carried out; when the difference value is larger than a set range B, replacement reminding of the flow sensor is conducted; and the control of the air inlet flow precision is fully guaranteed, and the real-time air inlet flow Q is the measurement value of the flow sensor under the steady-state condition of the engine. The method has the advantages and effects that the air inlet flow precision can be guaranteed in real time, and the running state of the engine is guaranteed.

The invention provides a wireless intelligent monitoring system for a tramcar. The wireless intelligent monitoring system comprises a monitor group, a wireless router group, a coordinator and a monitoring terminal, wherein the monitor group is used for receiving multiple monitoring data and forwarding the monitoring data; a plurality of wireless routers in the wireless router group are used for receiving the multiple monitoring data from the monitor group and forwarding the acquired monitoring data; the coordinator is used for acquiring the monitoring data from the wireless router group and forwarding the monitoring data; the monitoring terminal is used for receiving the monitoring data transmitted from the coordinator and establishing a database according to the monitoring data; the monitoring terminal is further used for performing real-time and past analysis on the acquired monitoring data by using a big data association analysis technology and a compatibility check and intelligentfault analysis technology; and the monitoring terminal is also used for judging the operating state and possible faults of the tramcar and transmitting a control instruction. The intelligent monitoring system disclosed by the invention has the advantages of being convenient to carry and easy to maintain, remote monitoring is realized, and the normal operating state of the tramcar is ensured.

The invention discloses a transmission mechanism of an electric-control electrocar door, which comprises an electrocar door system (1) and a door head mechanism (7), wherein the electrocar door system (1) consists of left and right door leaves (1-1) and a shifting fork (1-2). The transmission mechanism is characterized in that a door control unit (6) sends an instruction, a motor drives a screw to rotate, and nuts drive the shifting fork and the door leaves to make linear motion in an axis direction of the screw, so that the opening and the closing of the electrocar door are achieved. According to the transmission mechanism, a locking device and a transmission device are integrated; a small-diameter part achieves the quick opening and closing of the electrocar door; the closing speed is increased to 1.5-4.5s; point contact is formed between a spheroidal guide wheel and a guide rail, so that the frictional resistance is less, and the frictional heat is kept in the original level when the guide wheel rolls; noise cannot be increased; the screw, the nuts, and a helical pair achieves self-lubrication, so that the running states are ensured without oil injection; the maintenance cost is lowered; and the more advanced, more reasonable, safer and quicker electrocar door system is formed.

The invention discloses a system for preventing overdischarge of automobile starting battery, comprising a starting battery, a generator and a starting load; the system for preventing overdischarge of automobile starting battery is provided with an overdischarge control unit, and the overdischarge control unit is respectively connected with the starting battery, the generator and the starting load by a signal circuit. The invention also discloses a control method of the system. By adopting the technical scheme, monitoring on automobile starting battery terminal voltage, batter charging current and discharging current and battery working temperature is utilized to judge the actual charge state of the battery and compare the actual electricity quantity with rated electricity quantity, so as to judge whether the battery is overdischarged or not, and corresponding steps are taken like compensate electric quantity charging, the battery is avoided to overdischarge, the battery is ensured to operate normally, and further safety performance of automobile is improved.

The invention provides a display panel control method, device, system, display board and equipment unit which relates to the field of air conditioning. The method comprises: saving parameters during normal operation of an application program in the display panel; obtaining an abnormal exit restart frequency of an application program under the condition that an application program restarts; write the parameter to the application with the application exception exit restart times greater than zero. The display panel is able to maintain a pre-restart operation state after the abnormal exit of thepanel application is restarted. In addition, by using the restart application program of the operating system, the display panel application program is not required to be manually restarted by the user, and the user experience is improved.

The invention discloses a fuel cell stack performance recovery method and system. The method comprises the following steps: setting fuel cell stack cathode air internal circulation supply, and detecting the voltage of a single cell output by a fuel cell stack; when the fuel cell stack is in a performance recovery working condition, starting internal circulation supply of cathode air of the fuel cell stack, and when it is detected that the voltage of a single cell is lower than a first threshold voltage, switching the fuel cell stack to a normal operation working condition; and when the fuel cell stack is in a normal operation condition, stopping internal circulation supply of cathode air of the fuel cell stack, and when it is detected that the voltage of the single cell is higher than a second threshold voltage, switching the fuel cell stack to a performance recovery condition. According to the invention, the performance of the fuel cell stack is rapidly and efficiently recovered, and the problems of reverse pole and irreversible attenuation of a single fuel cell or a local area are avoided.

The invention relates to a double-main-control device and a main-standby control method, and the double-main-control device comprises a first main control board and a second main control board. The primary main control board in the first main control board and the second main control board is used for monitoring a first software state of the primary main control board and a second hardware state of the standby main control board in the first main control board and the second main control board; the standby main control board is used for monitoring a second software state of the standby main control board and a first hardware state of the primary main control board; and if at least one of the first software state and the first hardware state of the primary main control board is abnormal and the second software state and the second hardware state of the standby main control board are normal, main-standby switching is performed on the primary main control board and the standby main control board. According to the invention, the main/standby switching can be quickly carried out, and the normal work of the whole system is ensured.

The invention discloses a method for optimizing the energy consumption ratio of a server. The method for optimizing the energy consumption ratio of the server comprises the following steps of detecting the temperature of each function part during the operation of the server; according to the arranged position of each function part on the server, and matching each function part with a corresponding fan cluster in a curve of preset part positions versus serial numbers of fans respectively; adjusting the average rotating speed of the fan cluster corresponding to each function part according to the comparison relationship between an average temperature value of each function part and a preset temperature threshold so as to make the fan cluster corresponding to the each function part operate in a lowest average rotating speed state in which the temperatures of all the function parts can be kept below the permissible temperatures. Therefore, the temperatures of all the function parts can be kept below the permissible temperatures so as to ensure the normal operation of the function parts, and thus the normal working performance of the server can be ensured; meanwhile, all the fan cluster operate in the limited minimum rotating speed state, therefore, on the premise of no loss of the performance of the server, no error generation and no damage, the power consumption is minimized to the full, and the energy consumption ratio is improved.

The invention relates to the technical field of printed circuit boards, in particular to a protective printed circuit board. The printed circuit board comprises a top layer, a middle layer, a bottom layer, a heat conduction layer, a copper foil circuit and a solder mask layer, wherein the top layer, the middle layer and the bottom layer are fixedly connected through pressing equipment, and the middle layer comprises a heat dissipation layer, an arc isolation layer, an anti-corrosion layer, a flame-retardant layer and an insulating layer; the heat dissipation layer is located in the middle of the middle layer, the arc isolation layers, the anti-corrosion layers, the flame-retardant layers and the insulating layers are sequentially distributed on the upper surface and the lower surface of the heat dissipation layer, the upper surface and the lower surface of the heat dissipation layer are fixedly bonded with one sides of the two arc isolation layers respectively, and the surfaces of thetwo arc isolation layers are fixedly bonded with the surfaces of the two anti-corrosion layers respectively. The purpose of improving the weather resistance of the printed circuit board is achieved, the phenomenon that the PCB is prone to corrosion is avoided, the overall property of the PCB is improved, the service life of the PCB can be prolonged, the use places are wide, and the use requirements of special places can be completely met.

The invention relates to the technical field of printing and dyeing, and discloses an energy-saving printing and dyeing wastewater filtering device which comprises a pipeline, a filtering pipe is fixedly installed in the middle of the pipeline through threads and screws, a first groove is formed in the filtering pipe, a water conveying pipe is fixedly installed at the water inlet end of the pipeline, and a connecting mechanism is movably clamped to the first groove. The number of the connecting mechanisms is two, a first filtering mechanism and a second filtering mechanism are fixedly installed between the two connecting mechanisms, a filtering plate is installed between the first filtering mechanism and the second filtering mechanism, the first filtering mechanism comprises a first fixing plate, and four pieces of first filtering canvas are installed on the first fixing plate. Through the rotating effect of the first filtering mechanism, the second filtering mechanism and the filtering plate, the contact angle between the waste water and the first filtering mechanism, the second filtering mechanism and the filtering plate can be adjusted, and therefore the filtering effect of the first filtering mechanism, the second filtering mechanism and the filtering plate on the waste water is better achieved.

The invention relates to a high-temperature superconducting induction motor stator. First to sixth parts of the stator structure are respectively placed in first to sixth opened rectangular grooves; first two sixth copper coils are respectively embedded at the notches of the first to sixth opened rectangular grooves; the parts, extending out of the end part of a stator core (1), of the first to sixth copper coils circumferentially and respectively bend along the inner diameter of the stator core (1) so as to prevent end coils from intersection, and cannot contact first to sixth superconducting coils. According to the stator, the problem that relatively large pulsating torque is generated as the arrangement and fixation of the superconducting coils in a stator slot are difficult and the superconducting winding coefficients are too low overcome, superconducting coil fixing frames are prevented from generating eddy-current loss, the superconducting cooling cost is reduced, the volume and weight of a superconducting motor are greatly decreased, and the power factor and efficiency of the motor are improved.

The embodiment of the invention discloses a motor control method and a motor control device, which are applied to a dual closed-loop control system. The method comprises the following steps: acquiringa d shaft voltage instruction and a q shaft voltage instruction output by a current loop; according to the d shaft voltage instruction, the q shaft voltage instruction and power voltage of a motor, determining voltage saturation rate; judging whether the voltage saturation rate is greater than a preset saturation threshold value; and if so, amending the d shaft voltage instruction and the q shaftvoltage instruction, or amending a three-phase voltage instruction output to the motor. With the method and the device provided by the invention, output voltage can be quickly enabled to effectivelyact in a voltage limit circle, occurrence of voltage saturation is prevented effectively and quickly, thus, problems, such as bad driving or stop, caused by voltage saturation ca be solved, and the motor can keep a running state when the voltage jumps or the motor is in full power operation.

The invention specifically discloses a harmonic analysis and three-phase imbalance monitoring method based on intelligent CT. The method comprises the steps of configuring a master-slave mode of an A-phase intelligent CT, a B-phase intelligent CT and a C-phase intelligent CT, obtaining information of a slave-mode intelligent CT through the master-mode intelligent CT, and calculating a current effective value; calculating the nth harmonic content HRIn of each phase of current and the total harmonic distortion rate THD of the current, and recording a harmonic content curve; and calculating the average value of the three-phase current and the maximum value of the difference between the three-phase current value and the average current, calculating the unbalance degree Ru, and when the unbalance degree or the harmonic content exceeds a preset threshold value, reporting an alarm event to a collector. According to the invention, the three-phase unbalance degree and the harmonic content can be analyzed and monitored locally, and the analysis result is uploaded to an acquisition terminal and a master station. The collector or the master station does not need to carry out complex data calculation and analysis, so that resources of the collector and the master station can be greatly saved.

The invention discloses an energy storing device for heating tail flue gas of a boiler and an operating method. The energy storing device comprises a first heater, wherein the first heater is connected with a boiler tail flue, a first heat exchange medium is introduced into the first heater, the first heat exchange medium in the first heater and flue gas in the boiler tail flue are subjected to heat exchange heating, an outlet of the first heater is connected with an inlet of a medium hot tank, the medium hot tank is used for storing the first heat exchange medium for heat exchange heating, anoutlet of the medium hot tank is connected with a second heater, a first regulating valve is arranged on a pipeline, connected to the second heater, of the medium hot tank, the first heat exchange medium subjected to heat exchange heating in the second heater and a second heat exchange medium in a heat supply network are subjected to heat exchange, and the second heat exchange medium enters the heat supply network after absorbing heat. The energy storing device is suitable for meeting multiple heat supply demands of the heat supply network, improves peak load regulation capacity of the boiler, and has a wide application range, smaller improvement for the boiler body and low improvement cost, the whole device has a simple and flexible structure, and realization of industrialization is facilitated.

The invention relates to the technical field of medical apparatus and instruments, and discloses a medicine dispensing and transfusion combined device for an intravenous administration center, which comprises a workbench, a mixing bottle and a sealing cover, an inner groove is formed in the side surface of the workbench, the mixing bottle is placed in the inner groove, a shielding mechanism is movably connected in the inner groove, and three placing mechanisms are equally arranged on the bottom wall of the inner groove. The lower portions of the three placement mechanisms are controlled by arranging a kinetic energy mechanism, the shielding mechanism comprises a partition plate, three leakage holes are formed in the upper surface of the partition plate in an equally-spaced mode, and a short-distance sealing mechanism is arranged above each leakage hole. The three rotating columns are driven to rotate synchronously while the transmission crawler belt rotates, at the moment, medicine in the mixing bottles is rotated and mixed under centrifugal force, multiple kinds of medicine can be dispensed at a time by arranging the multiple mixing bottles, the medicine dispensing efficiency is improved, and the requirement for rapid production and medicine dispensing is met.