458results about How to "Reduce commissioning costs" patented technology

An LED dimming circuit suitable for thyristor dimmers, 50/60Hz AC sine wave waveforms are chopped by a triac (TRIAC), rectified by a bridge rectifier circuit (A), and separated by an isolation circuit ( U1) Take out the chopping waveform and send it to the single-chip control unit (MCU), the single-chip control unit (MCU) outputs the PWM waveform to the LED driver chip (LEDDRIVE), and the LED driver chip (LEDDRIVE) drives the light-emitting diodes (LED1, LED2) to emit light. It makes the LED lamp directly replace the incandescent lamp with the same perfect dimming effect, and the circuit is simple and the cost is low, which overcomes an important obstacle for the LED lamp to replace the incandescent lamp.

The invention discloses distributed packet-switching chip model verification system and method and relates to the field of designing packet processing chips. The system comprises a core control module, a command line interface module, an SDK (software development kit) proxy interface module, a virtual network test meter module, a virtual chip configuration module and a C model package module. The core control module is a server program module. The command line interface module, the SDK proxy interface module, the virtual network test meter instrument, the virtual chip configuration module and the C model package module are client program modules. The system is a C/S/C (client/server/client) structured distributed system supporting three application scenarios, namely, system function model verification, software-hardware cooperated simulation verification and prototype verification. Modules required for different application scenarios are different. Verification closure time of the functions of the system at different levels can be shortened greatly, development efficiency is increased, and debugging cost is lowered.

The invention provides a flight simulation system of an unmanned aerial vehicle. The flight simulation system of the unmanned aerial vehicle comprises a main control module, a display module and a communication module, wherein the main control module is used for controlling the simulated flight of a preset unmanned aerial vehicle model to generated various actual flight data, the display module is used for displaying the various actual flight data generated during flight simulation under the control of the main control module, the communication module is used for sending the various actual flight data generated during flight simulation to a ground station or receiving a control command of the ground station under the control of the main control module, and both the display module and the communication module are electrically connected with the main control module. According to the flight simulation system and method of the unmanned aerial vehicle, the problem that actual flight of the unmanned aerial vehicle is needed each time when the ground station is debugged is solved, debugging cost of the ground station is saved, and debugging efficiency of the ground station is improved.

The invention discloses a remote debugging system and method of an elevator controller. The system comprises a control end smart mobile phone, the elevator controller and a debugging end smart mobile phone. By logging in the debugging end smart mobile phone, parameter information and state information of the elevator controller are acquired to form a data packet or a detection file is automatically generated. A remote worker receives the data packet or the detection file through the control end smart mobile phone, a debugging file is generated after the data packet or the detection file is analyzed and returned to the debugging end smart mobile phone, and the debugging end smart mobile phone writes a debugging instruction in the debugging file into the elevator controller after receiving the debugging file. The system avoids the defect that in the prior art, because an elevator control machine room shell is disassembled, tedious operation is caused, meanwhile lowers the requirements for assembly skill of workers, enhances human-computer interaction, improves the debugging efficiency, reduces the frequency for technical service staff to arrive at the scene and thus reduces the equipment maintenance cost.

The invention provides a control device a control method for the stable running of a gas turbine, belonging to the technical field of the control of the gas turbine. The device comprises a start control module, a revolving speed control module, a revolving speed load control module, an acceleration control module, a temperature control module, a load shedding control module, a maximum value control module, a minimum value control module, a minimum value selector and a maximum value selector. According to the invention, the safety and the stability of the running process of the gas turbine can be guaranteed, the joint debug time of the gas turbine can be shortened, and the gas turbine debugging cost for the debug control system can be reduced; and a master control system is designed by the method adopting the minimum value selector, and the control system is debugged in cooperation with a simulated mathematical model, so that the rationality and the safety of the control system can be guaranteed.

A drive unit for a door or a gate includes an electric motor, a detection unit for detecting the position of the door or gate, the detection unit being coupled to the motor and providing an identical pulse sequence with every rotation of the motor, wherein the duration of one pulse in the sequence is different from the duration of the other pulses in the sequence, which are equal. All detected pulses are stored in a non-volatile memory. The drive unit includes an electronic control and regulating circuit including an output stage for the electric motor and at least one memory, in which an operational program is stored providing a programmable learning procedure for an opening and closing movement of the door or gate based on the pulses provided by the detection unit.

The invention provides a terminal commissioning method. The method comprises the steps of acquiring commissioning data from a terminal to be commissioned; transmitting the commissioning data obtained to the commissioning terminal through a wireless connection between the commissioning data and the commissioning terminal, so as to commission the terminal to be commissioned by the commissioning terminal in accordance with the commissioning data. The commissioning data is transmitted by the wireless connection transmission, therefore the complicate wiring can be prevented; furthermore, the commissioning data is not limited by a networking environment and the hardware quantity, therefore the commissioning cost can be effectively saved.

The invention discloses sensor auto identification device. It includes sensor, read analog input unit, algorithm unit, sensor auto identification rule base, sensor failure decision rule base, sensor identification unit, and sensor data display unit. The output end of the sensor is connected with the input end of the read analog input unit of which output end is connected the input end of the algorithm unit. The output ends of the algorithm unit, sensor auto identification rule base, and sensor failure decision rule base are connected with the input end of the sensor identification unit of which output end is connected with the input end of the sensor data display unit. The invention needs no interface numbering mark, can automatically identify various sensor types and uses, ensure auto control device run as the given input-output relation to reduce site operation and debugging cost, increase work efficiency.

The invention discloses a van-type movable hydrogen manufacturing and hydrogen refueling station, comprising a power source compartment, a hydrogen manufacturing compartment, a compression compartment, a hydrogen storing compartment and a gas selling machine, wherein the power source compartment and the compression compartment and the hydrogen storing compartment are respectively formed by changing a shipping container; the power source compartment converts the local high-voltage power source into low-voltage direct current, dynamic voltage and lighting voltage which are suitable for being used in the invention; the hydrogen manufacturing compartment is provided with a tap water interface, a water treatment facility, an electrolytic cell and a hydrogen purifying device which are connected in sequence; the compression compartment is provided with a low-voltage buffer tank connected with the hydrogen purifying device, and a compressor connected with the low-voltage buffer tank; the hydrogen storing compartment is provided with at least a high-voltage hydrogen storing tank which is connected with the compressor through a check valve; and the gas selling machine is connected with the high-voltage hydrogen storing tank through a reducing valve. The van-type movable hydrogen manufacturing hydrogen and refueling station of the invention is convenient for transoceanic transportation by changing the shipping containers, thus lowering the installation difficulty and the debugging cost.

The invention provides a method for optimizing control parameters of a ventilation and air conditioning system of a subway station and belongs to the field of heating ventilating and air conditioning. The method is applied to the ventilation and air conditioning system and mainly comprises the following steps: building a simulated model of a platform layer of the subway station according to a design drawing of the subway station, and determining the parameters of the simulated model; meshing the simulated model; calculating initial control parameters, and programming a PID (Proportion Integration Differentiation) control program of the ventilation and air conditioning system of the subway station by using Fluent UDF (Universal Disk Format); operating Fluent software, and calculating and solving the simulated model of the ventilation and air conditioning system of the subway station; comparing simulation temperature and speed control results of a flow field under different control parameters, and finally optimizing to obtain optimal control parameters. The method disclosed by the invention has the characteristics of changing the control parameters of the ventilation and air conditioning system of the subway station, calculating the simulation temperature and the speed control results of the flow field under different control parameters by using the Fluent software and obtaining the optimal control parameters by comparison and optimization.

The invention relates to a terminal debugging method and device. Before debugging is conducted, debugging items of terminals to be debugged in the same series are stored in a debugging system in advance; when the terminals are debugged, the debugging items of the terminals are imported first, and the debugging items are sequentially matched with the debugging items which are stored in advance; if the matching is successful, matching identifications are added to the debugging items of the terminals to be debugged; when a debugging instruction is received, whether the matching identification for the debugging item corresponding to the debugging instruction is available in the debugging items of the terminals to be debugged is judged; if the matching identification for the debugging item is available, a debugging program of the debugging item is called and operated, as a result, when the terminals in the same series are debugged, the debugging program can be directly called from the system, and corresponding debugging programs do not need to be imported before each time of debugging. Therefore, debugging efficiency is high, and debugging cost is reduced.

The invention relates to a spring-back analysis and full-profile compensation method for a cold-stamped part of an automobile fender and belongs to the field of manufacturing of stamping molds for automobile covering parts. The method comprises specific steps as follows: step 1: a spring-back result of the part of the fender is predicted as follows: analog simulation is performed on the forming process of the part of the fender by the aid of finite element analysis software AutoForm, and the spring-back result is predicted; step 2: a spring-back compensation scheme for the part of the fender is determined; step 3: full-profile spring-back compensation for the part of the fender is performed, and multiple rounds of iterative compensation is performed by the aid of the finite element analysis software AutoForm until the size requirements are met; step 4: product data of the part of the fender are reconstructed. The method has the positive effects that the defects of low fender size precision and high mold transformation workload in the past are overcome by the aid of fender spring-back analysis and spring-back compensation based on the finite element analysis technology, the qualityof a fender product is substantially improved, the mold debugging cost is reduced, and the mold debugging period is shortened.

The invention discloses a test platform of a controller area network (CAN)-based light rail vehicle network control system, which comprises a driver console A, a driver console B, a control cabinet A, a control cabinet B and a subsystem simulation cabinet, wherein the driver consoles A and B have the same structure; the control cabinets A and B have the same structure; and the driver console A, the control cabinet A, the subsystem simulation cabinet, the control cabinet B and the driver console B are connected by a CAN. The test platform can greatly shorten the debugging time of the vehicle network control system so as to shorten the time of delivering vehicles to users by original equipment manufacturers and finally realize the advanced delivery or operation of the vehicles. The test platform and a research platform are provided for the CAN technology-based control system, are favorable for the popularization and application of a CAN system in China and further promote the diversified development of the light rail vehicle network control system in China.

The invention discloses a system for debugging a half-speed steam turbine protection system of a nuclear power plant. The system for debugging the half-speed steam turbine protection system of the nuclear power plant comprises a simulation machine and a valve debugging device, wherein the simulation machine is connected with the steam turbine protection system and used for simulating multiple operating parameters of a steam turbine and sending the multiple operating parameters of the steam turbine to the steam turbine protection system, so that protection action of the steam turbine protection system is tested; and the valve debugging device is connected with a main steam valve of the steam turbine and used for simulating a control signal of the steam turbine protection system to the main steam valve, and whether action of the main steam valve is matched with action of the steam turbine protection system or not is tested by testing opening and closing of the main steam valve. The invention further discloses a method for debugging the half-speed steam turbine protection system of the nuclear power plant. By adoption of the system and method for debugging the half-speed steam turbine protection system of the nuclear power plant, the risks of machine tripping and reactor tripping can be lowered, and the safety and reliability of the system are improved.