41results about How to "The control method is safe and reliable" patented technology

The invention relates to a vehicle door control method and a control system for a railway vehicle. According to the vehicle door control method and the control system, a master control vehicle door independently controlled by a train conductor is designated on each of the left side and the right side of each vehicle of a multi-set train. The vehicle door control method specifically comprises the following steps: A, activating a vehicle door control circuit by the train conductor; B, pushing a door opening button and opening all vehicle doors on one side of the train by the train conductor; C, after passengers get on, pushing a door closing button by the train conductor to close all vehicle doors except the master control vehicle door where the train conductor is located; D, after the train conductor makes an inspection tour on a platform to ensure that no people or articles are gripped, pushing an informing button by the train conductor to send a door closing signal to a cab to operate, and if the phenomenon that people or articles are gripped is found, repeating the step B and the step C; closing the master control door where the train conductor is located by the train conductor. The control system disclosed by the invention is simple in structure; the control method is safe and reliable; in addition, the train conductor can find the phenomenon that the people and the articles are gripped in time, and can conveniently open the vehicle doors again, and thus the safety of the train conductor and the passengers is sufficiently ensured.

The invention discloses a control system of an electric water heater. The control system comprises the electric water heater and a mobile control terminal, wherein the electric water heater is provided with a wireless communication module, wireless communication can be mutually realized between the electric water heater and the mobile control terminal, the mobile control terminal is provided with an operation interface so that users can input control instructions through the operation interface, and the control instructions can be sent to the electric water heater for realizing the operation control on the electric water heater. The electric water heater receives the control instructions sent by the mobile control terminal through the wireless communication module, executes the control instructions and feeds back the execution results to the mobile control terminal. The control system of the electric water heater has the advantages that the visible control on the electric water heater can be realized, the operation is flexible and convenient, and the experience of the users is improved. The invention also discloses the electric water heater with the communication function and a control method of the control system of the electric water heater.

The invention discloses a control device with an intelligent water level detection function. The control device with the intelligent water level detection function comprises a controller mounted on a water fountain, and further comprises a tray arranged below a water outlet of the water fountain. A container induction device is arranged on the tray. A container height detection device is vertically arranged between the tray and the water outlet. A water level detection device is arranged at the position as high as the water outlet. The controller is in control connection with the container induction device, the container height detection device, the water level detection device and the water outlet respectively. The control device with the intelligent water level detection function has the advantages of being simple in structure and wide in application range; the control device senses a water taking container through the container induction device, measures the height of the water taking container through the container height detection device and measures the height of the water level in the water taking container through the water level detection device, so that automatic and intelligent operation of the water fountain in the water taking process is achieved, the control method is simple, and the water fountain is more convenient, efficient and safe to use in the water taking process.

The invention discloses a wireless single control method for a parking spot lock and the parking spot lock. The control method includes that acquiring authorization codes from a server at a mobile terminal, comparing the authorization codes with a code database in the parking spot lock, if the authorization codes successfully match with the code database, opening the parking spot lock, after the vehicle leaves the parking spot, closing the parking spot lock to realize the garage management and sharing. The parking spot lock comprises a parking spot lock body and a controller, the parking spot lock body is provided with a shell, a U-shaped stop lever, a drive motor and a ratchet wheel mechanism, a rotating shaft is through arranged in the shell in the transverse direction, and two ends of the rotating shaft are connected with the opening end of the U-shaped stop lever; a driven gear firmly sleeves the middle of the rotating shaft, the output shaft of the drive motor is provided with a drive gear, and the drive gear is engaged to the driven gear; at least one limit groove is circularly opened in the rotating shaft, a limit rod is arranged on the inner wall of the shell, and the limit rod matches with the limit groove to realize limit; the parking spot lock is simple in structure, convenient to control and convenient to mount.

An automatic recovery and control device and a control method thereof of an on-vehicle closed-loop direct current motor relate to the technical field of the automatic recovery and control device and the control method thereof of the on-vehicle closed-loop direct current motor. The signal output ends of a polarization transmission mechanism, a polarization potentiometer, an azimuth 0 point Hall switch, a tilt sensor, a pitching transmission mechanism, an electronic compass, a pitching lower limit Hall switch, an azimuth transmission mechanism and an azimuth potentiometer are respectively connected with the signal input end of an automatic aim satellite control system. The automatic recovery and control device and the control method thereof achieve the purposes of safe recovery method, simple operation, high stability, high control accuracy and short time.

The invention discloses a method and a system for controlling a lifter. The method comprises the following steps: a host controller receives control signals sent by an operating board controller, wherein the control signals include handle signals and/or keyboard signals; the host controller judges the control signals and outputs first layer flattening signals to a frequency converter according to a judgment result, wherein the first layer flattening signals comprises automatic layer flattening signals and manual layer flattening signals; the frequency converter outputs a first layer flattening action command according to the received first layer flattening signals, wherein the first layer flattening action command is used for controlling a motor to work. According to the method and the system, the problems that the operation is troublesome, and the structure of a machine is easily damaged because an existing lifter is in shortage of an automatic layer flattening function, and a tractor driver needs to carry out inching adjustment by virtue of a handle in a single manual layer flattening process are solved.

The invention discloses a vehicle-mounted terminal control method and device, equipment and a storage medium, and belongs to the field of vehicle-mounted central control. The method comprises the following steps: displaying an applet interface of an applet, wherein the applet interface comprises at least two components; in response to a physical control operation on the hardware peripheral, controlling a first target component in the at least two components in the applet interface to execute a target event; and in response to a touch operation on the touch screen, controlling a second target component in the at least two components in the applet interface to execute the target event. According to the application, a physical knob, a physical toggle button, a hardware button and other hardware peripherals are adopted to control the applet; the control on the applet through the hardware peripheral and the touch screen is supported at the same time, and a safe control method is provided on the vehicle-mounted terminal.

The invention relates to a volatile organic compound (VOC) adsorption and tail hydrogen safe treatment device and method for purge gas of an aromatic hydrogenation system, and mainly solves the problem that safety is poor due to the fact that hydrogenation tail gas is directly discharged in the prior art. According to the invention, the VOC adsorption and tail hydrogen safety treatment device andmethod for purge gas of the aromatic hydrogenation system are adopted; after the purge gas of the aromatic hydrogenation system is separated by a gas-liquid separator, the gas phase enters a VOC adsorber, and the purge gas subjected to adsorption enters a hydrogen processor and finally is up to standard and discharged; active carbon fibers are arranged in the VOC adsorber to adsorb aromatic hydrocarbons in the purge gas; the hydrogen processor is designed in a venturi type, and a fire blocking wire net is arranged in the hydrogen processor, so that when gas is discharged, air is sucked in through pressure, and a mixing zone is formed at an outlet section; an ignition head is arranged at an outlet of the hydrogen processor, and automatic ignition is carried out when hydrogen is discharged,so that the hydrogen is removed. The technical scheme well solves the above problem, and the device and method can be used for treating hydrogen-containing purge gas.

A method for safely reusing and treating hydrogenated tail gas in a hydrogenation reaction device mainly solves that problem of poor safety caused by direct discharge of hydrogenated tail gas in the prior art. The method for safely reusing and treating hydrogenated tail gas in the hydrogenation reaction device is adopted, purge gas of an aromatic hydrogenation system is separated by a gas-liquid separator, a part of a gas phase enters a low-temperature catalytic oxidation reactor through a discharge pipeline, the gas at the outlet of the reactor is discharged after passing through a fire arrester, and the other part of the gas phase enters a hydrogen reuse pipeline. A gas component analyzer is arranged on a gas phase outlet in the top of the gas-liquid separator, so as to analyze the composition change of the tail gas on line, an upper limit index is set for the organic content in the tail gas when hydrogen reuse is selected, and when the index is exceeded, a reuse pipeline valve is automatically closed and a discharge pipeline valve is opened at the same time. The technical scheme that a catalyst and an adsorbent are installed in the low-temperature catalytic oxidation reactor solves the above problems and can be used for treating hydrogen-containing purge gas.

The invention provides a PTC liquid heater and a heating control method thereof to solve the problem that a PTC heating module cannot work due to the fact that a current peak point can appear when an existing PTC liquid heater carries out heating and protective measures are started by a whole vehicle. The PTC liquid heater comprises a first heating module, a second heating module, a first switch, a second switch, a first drive circuit, a second drive circuit, a high-voltage circuit and a controller, wherein the first heating module comprises x PTC heating modules which are connected in parallel; the second heating module comprises y PTC heating modules which are connected in parallel; and the controller transmits default delay time t to a first logic signal of the first drive circuit and a second logic signal of the second drive circuit. According to the PTC liquid heater, the current impact can be reduced by adopting two-gear grouping and PWM control modes, the current peak point is effectively prevented and the control mode is safer.

The invention provides an automatic uncoupling control method for an internal combustion locomotive. The automatic uncoupling control method for the internal combustion locomotive comprises the following steps that S1, confirmation is conducted through man-machine interaction, an uncoupling function interface is additionally arranged on a locomotive display screen interface, the interface can autonomously select to enter an uncoupling mode or exit the uncoupling mode through man-machine interaction, a diesel engine indicator valve is opened, a display screen and a microcomputer control system define a communication interface; and uncoupling mode interaction information is defined; S2, an uncoupling mode is executed, and uncoupling mode request information of the display screen is received by a microcomputer system; according to the automatic uncoupling control method for the internal combustion locomotive, control is conducted through interaction of the microcomputer control system and the display screen, pre-lubrication control over an engine oil system and control over rotation of the crankshaft driven by an oil engine starting device are achieved, the safe, efficient and convenient control method is provided for uncoupling operation of the diesel locomotive through judgment of checking of the number of turns of the crankshaft. Manual operation is reduced, and automatic control over the uncoupling process is achieved.

The invention discloses a parking space sharing method and a parking space sharing device. The parking space sharing method comprises the steps of receiving an unlocking command, generating a first code and generating a first unlocking password according to the first code and a first preset rule; displaying the first code and receiving a second unlocking password input by a user; carrying out comparative verification on the first unlocking password and the second unlocking password; and if the first unlocking password is the same as the second unlocking password, indicating that verification is successful and carrying out unlocking operation. By adopting the parking space sharing method, opening and closing of the parking space sharing device are achieved through verifying the unlocking passwords under the condition that network connection with a server is not carried out, and meanwhile, dynamic password unlocking is achieved, so that the implementation cost is low, the password comparison accuracy is high and a whole application method is stable and reliable.