5305 results about "Microcomputer control" patented technology

A powered strength trainer includes: a motor of a load element being a DC or brushless motor; a controller, provided for users to adjust current and signal of the motor through a microcomputer control panel, and control the torque, vibration frequency and amplitude of the motor, such that the motor can produce a pulling force, a resistance and a vibration force at the same time, and a vibration waveform can be selected as needed, and a movement path sensor is provided for feeding back a position and determining a positive and negative rotation, and a curved load control is used for compensating a load current appropriately, and allowing users to obtain a smooth and real-world setting. A planar spiral spring drives a winch to rewind the steel wire to prevent the steel wire from falling out during a power disconnection or a power failure.

The invention relates to an intelligent control device of a high power energy saving electromagnetic stove, and the method thereof, The intelligent control device comprises a controllable rectifying and filtering module, a contravariant module and a microcomputer controlling module, which is characterized in that a three-phase alternating current power supply is rectified into an adjustable direct current power supply through the controllable rectifying and filtering module ; the direct current power supply is inverted into a high frequency alternating current power supply through the contravariant module, and then the electric energy is converted into electromagnetic energy to be radiated to the bottom of a cookware, and vortex flow is generated, and the cookware can be heated because of the thermal effect of the vortex flow; the microcomputer controlling module is the core of the entire system, which is used for collecting data and transmitting control information to each module; the device adopts a series of advanced control policies, such as the trigger control of the rectifier bridge of an PI regulator, the intelligent self-adaptive constant power control, the intelligent soft-start control, the intelligent cookware detection control, etc., and thereby the working stability and the security of the electromagnetic stove are enhanced. The harmonic pollution of the equipment to the electric network can be reduced to the utmost extent when the electric energy of the electromagnetic stove is saved, and the electromagnetic stove is suitable for various kitchens and dining rooms.

A full-voltage dental water jet of the invention includes a base, a pump, a suspension stand, a reservoir and a microcomputer control system. The base has a lower case and an upper case. The pump disposed in the lower case has an inlet and an outlet. The suspension stand having at least three engaging portions, a heat dissipating aluminum plate, a first standing portion and a second standing portion is disposed between the pump and the lower case. The reservoir is disposed above the base. The microcomputer control system is disposed in the upper case. The microcomputer control system has the function of adapting the dental water jet to the universal input voltage. In addition, the suspension stand made of the silica gel material reduces the operation noise and the vibration of the pump.

A wireless AV system includes a central wireless unit, serving as a base device, and a TV main unit. The TV main unit includes an SS transmitter / receiver (T / R) unit, a TV section, a TV microcomputer, and a second SS-CPU. The SS T / R unit receives an MPEG-2 stream and command transmission data both of which are transmitted from an SS T / R unit of the central wireless unit, and decodes the MPEG-2 stream and the command transmission data so received. The TV section displays a video signal and outputs an audio signal. The TV microcomputer controls the TV main unit entirely. The second SS-CPU detects a communication condition between the central wireless unit and the TV main unit according to a received radio wave field intensity and a retransmission request made based on an error rate. The TV microcomputer causes the TV section to OSD-display such reception sensitivity information messages that video and / or audio data has been interrupted, that transmission channels are being switched, that connection are being made, and that the TV main unit is out of communication range, according to the. communication condition so detected. Thus, a user is free from a feeling of discomfort even when a display image is interrupted due to transmission channel switching etc. Thus, user-friendliness can be improved.

A split-type electric pressure cooker is composed of an internal pressure cooker able to be used individually, and an external cooker with microprocessor controlled heater on its bottom for setting up heating time, temp and different cooking functions.

The invention relates to an electric pressure cooker heat-pump device with a steam connector. The electric pressure cooker heat-pump device is characterized by comprising a connecting socket with a microcomputer controller, an electric pressure cooker heat-pump device, the steam connector and a temperature sensor, wherein a power supply is connected with the connecting socket with the microcomputer controller; the connecting socket with the microcomputer controller is connected with the electric pressure cooker heat-pump device; the steam connector is arranged on the electric pressure cooker heat-pump device so as to lead steam generated by the electric pressure cooker heat-pump device out of a heated space; the temperature sensor is arranged in the heated space and is connected with the connecting socket with the microcomputer controller, wherein the steam connector is made of high-temperature-resistant materials; the temperature sensor detects the temperature of the heated space and transmits the temperature to the microcomputer controller; and the microcomputer controller controls the communication of the connecting socket according to the temperature information detected by the temperature sensor so as to use the steam generated by an electric pressure cooker heat pump safely.

The invention relates to a transcranial magnetic field stimulator with a plurality of stimulating coils which comprises a high voltage charging power supply, a current-limiting resistance, an energy dumped capacitor, a reverse current reflowing diode, a thyristor switch, stimulating coils and a microcomputer controller. The stimulator is characterized in that: a stimulating unit comprises a thyristor switch, a stimulating coil and an energy dumped capacitor; N parallel connected stimulating units are connected to the current-limiting resistance and the high voltage charging power supply end; N stimulating units shared use an energy dumped capacitor; the microcomputer controller ends are respectively connected with the triggering ends of the thyristor switch in every stimulating unit; N is more than or equal to 2. A magnetic field stimulator of the invention can substitute a plurality of magnetic field stimulators in using, realizes the in-turn stimulation of a plurality of stimulating coils, and ensures a plurality of parts to get continuous stimulation from the program control. If the number of the energy dumped capacitor is increased, a plurality of coils not only can be stimulated in time sharing, but also achieving synchronous stimulation and couple stimulation.

A vehicle occupant information acquisition device includes a microcomputer, an acquisition unit and an alert unit. The microcomputer controls the vehicle to switch between an autonomous driving mode and a manual driving mode. The acquisition unit acquires, from vehicle occupants riding in the vehicle, information relating to driving suitability of the vehicle occupants. In a case in which the microcomputer is switching the vehicle from the autonomous driving mode to the manual driving mode, the microcomputer causes the alert unit to alert one of the vehicle occupants who is determined to be suitable to drive the vehicle based on the information acquired by the acquisition unit that he / she has been selected as the driver of the vehicle.

A microcomputer-controlled electro-hydraulic servo rock tri-axial dynamic shear-seepage coupling multifunctional test method belongs to the technical fields of rock mechanics and engineering technology and is characterized in that a test apparatus is composed of a loading system, a sealing system, a multiphase fluid injection system, an acoustic emission monitoring system, a deformation monitoringsystem and a data collection system. The test method not only solves technical problems that a tri-axial pressure chamber cannot be used for performing large displacement shear-seepage coupling of rocks under high confining pressure and high seepage pressure, and also can achieve various extended functions on the basis of the technology. The apparatus can achieve servo control loading of force, displacement and strain rate in shear direction and injection seepage of a multiphase fluid during dynamic shear. In addition, the apparatus is equipped with a temperature control system for performingconstant temperature control to the tri-axial pressure chamber at 0-200 DEG C; therefore, a series of extended experiments of dynamic shear-seepage coupling features of rocks under effect of temperature can be carried out.

The invention discloses a combined type temperature control curtain wall of a triplex glass structure and a temperature control method of the combined type temperature control curtain wall. The upper end and the lower end of an inner glass curtain wall and an outer glass curtain wall are provided with window-blinds grating openings, an independent inner sandwiched heat exchange channel is formed between the inner glass curtain wall and an intermediate partition layer, and an independent outer sandwiched heat exchange channel is formed between the outer glass curtain wall and a glass curtain wall of the intermediate partition layer. Semiconductor thermoelectric temperature control units are uniformly distributed on the glass curtain wall of the intermediate partition layer. An environment monitoring system comprises a plurality of temperature sensors used for providing real-time monitoring temperature data of the target environment for a temperature reading module in a single-chip microcomputer control module, and the semiconductor thermoelectric temperature control units are controlled by the single-chip microcomputer control module. The combined type temperature control curtain wall not only can sufficiently develop double heat exchange action of natural ventilation technology and semiconductor temperature control technology at different seasons but can be equivalent to a green air conditioner coat breathable and adjustable in temperature on a building.

The invention discloses an underwater multi-beam sounding system and a detecting method thereof. The system comprises a microcomputer control system, and a sound wave emission system and a sound wave receiving and detecting system which are connected with the microcomputer control system. The sound wave emission system is provided with a plurality of single emission units, and each single emission unit comprises a plurality of transmitting transducers with different resonance frequencies. The invention also relates to an underwater multi-beam sounding method according to the system. Through two unique modes of 'frequency sweeping and frequency selecting' and 'frequency hopping and sounding', the sounding range resolution is improved by reducing the frequency hopping residence time, the sounding range is increased by increasing the frequency point number of the frequency hopping, and the problem of the contradiction between the range resolution and the sounding range in the single-frequency pulse sounding. The sounding system and the underwater multi-beam sounding method can effectively resist underwater acoustic channel frequency selectivity fading and complex environmental noise, can accurately estimate the first echo reaching time under each wave beam angle, and improve the underwater multi-beam sounding accuracy.

The invention discloses a battery management system with an active equalization system. The battery management system comprises a single chip microcomputer control circuit, the active equalization system and a data acquisition system, wherein the active equalization system and the data acquisition system are respectively connected with the single chip microcomputer control circuit; the active equalization system comprises a relay gating switch, an additional charge unit, an additional discharge unit and a digital analog switch; the data acquisition system comprises a battery cell voltage acquisition unit; the battery cell voltage acquisition unit comprises an integrated operational amplifier unit and a digital analog switch. According to the battery management system disclosed by the invention, the equalization system is provided with the additional charge unit and the additional discharge unit, and therefore equalization management can be performed on the voltage of each battery cell in a battery pack, and the phenomenon that the battery cells in the battery pack are overcharged or over-discharged can be further avoided; the battery management system disclosed by the invention can be widely applied in the aspects of communication, electric power, traffic and new energy, and has important significance in maintaining the normal operation of the battery pack.

The invention discloses a simulated experiment device for dynamic damages of roadbeds and road surfaces under highway traffic loads. The simulated experiment device is composed of at least one traffic load dynamic loading system, a roadbed-road surface structure and a data acquisition system. Modes for controlling a loading function by a hydraulic oil source system and an MTS servo loading system are adopted, a microcomputer controlled acquisition system controls the vibration waveform of a simulated traffic load and drives an actuator to carry out loading on a loading axis and a loading wheel, the loading wheel transfers dynamic loads to a roadbed part through a road surface structure, and measuring point data of a road surface testing component and a roadbed testing component is intensively controlled, acquired and stored by a microcomputer through data transmission cables. The device disclosed by the invention is reasonable in structure and convenient to operate, and can simulate the needs of a dynamic traffic load simulation test for the long-term behavior of roadbeds and road surfaces acted by a highway traffic load at different speeds and different axle weights.

The invention relates to a mechanical automatic shift speed-changing device in hydraulic mechanical transmission engineering and a control method thereof. The device comprises an electro-hydraulic shift speed-changing unit, an electro-hydraulic engine, a microcomputer controller, an electro-hydraulic motor controller, a transmission case output rotational speed sensor, a shifting handle switch, a shifting mode selection switch, a brake pressure switch and an automatic direction switch. The electro-hydraulic motor controller is communicated with the microcomputer controller. The transmission case output rotational speed sensor, a torque converter turbine speed sensor, a shifting handle, the shifting mode selection switch, the brake pressure switch and the automatic direction switch serve to input signals to the input port of the microcomputer controller. The microcomputer controller serves to input control signals to a transmission case control module by the output port thereof. Based on the combination of two shift methods, the inventive device has the advantages of good economical efficiency, power efficiency and practicability, low energy consumption, automatic shift with high work efficiency, less working time, reduced labor intensity of the driver, and suitability for various working conditions.

The invention discloses a fully-automatic multifunctional shoe-cleaning machine. The fully-automatic multifunctional shoe-cleaning machine is provided with at least one shoe-fixing tray, wherein the shoe-fixing tray is moveably positioned on a guide rail; a first motor drives the shoe-fixing tray to do reciprocating motion on the guide rail; the shoe-fixing tray is hollowed; a sole-cleaning brush is arranged below the shoe-fixing tray; a plurality of vamp-cleaning rolling brushes are provided; a plurality of third motors drive the vamp-cleaning rolling brushes to rotate; a plurality of clear water nozzles are provided; a water box supplies water to the clear water nozzles; a microcomputer controller is provided and controls operation of all the motors and spraying of the clear water nozzles; and a dirt-collecting device for collecting dirt generated during clearing is provided. By the fully-automatic multifunctional shoe-cleaning machine, the shoe can be placed into the fully-automatic multifunctional shoe-cleaning machine to be cleaned all round after being taken off. The fully-automatic multifunctional shoe-cleaning machine can operate fully automatically, has the functions of polishing, drying and sterilizing besides the basic cleaning function, is safe, convenient and sanitary to use, has multiple functions, is suitable for families and is also applicable to commercial operation and public places.

A vehicle has an ECU, a battery being chargeable with off-board electricity and a motor driven by electric power of the battery. The ECU has a microcomputer to receive an operation time each time a user sets the ECU in an operation state, prepare a frequency of operation times for each time zone, and set a time of the time zone corresponding to the high frequency as a charging end target time. When the microcomputer receives a signal from an onboard charger connected with an off-board power source, the microcomputer sets a charging schedule such that the battery charged by the charger according to the schedule is set in a fully-charged state at the charging end target time. The microcomputer controls the charger to charge the battery according to the schedule and to set the battery in the fully-charged state at the charging end target time.

The invention relates to a constant-volume firebomb system for simulating combustion of an engine, for solving the technical problems of difficult observation of a flame combustion process in an actual engine, difficult evaluation and determination of a charcoal smoke generation amount at certain time in the combustion process and difficult realization of real-time sampling analysis of combustion products under the condition of a single variable. The constant-volume firebomb system for simulating the combustion of the engine comprises the following components: a firebomb body with a cylindrical cavity; a heating interlayer nested in the periphery of the firebomb body; a fuel injector; a pressure sensor; a temperature sensor; an air inlet channel; an exhaust sampling system; a high-pressure injection fuel oil supply system; a synchronization data acquisition system; a highs-speed shooting system; and a single-chip microcomputer control system. The constant-volume firebomb system provided by the invention has the following advantages: compared to a specially reconstructed single-cylinder machine or a rapid compressor, the cost is lower, and accurate control of the single variable is easily realized.

The invention relates to an aging test method and an aging test device under the multi-field coupling of humidity, heat and force. The method is used for testing polymer materials and test specimens produced by composite materials of the polymer materials, and the test is based on the dynamic monitoring to the tensile creep compliance of the materials under the multi-field coupling of the humidity, the heat and the force. The device is based on a standard humid and hot environmental box controlled by a microcomputer, a test specimen clamping and loading mechanism is arranged in a box of the device, and an electronic extensometer and a laser extensometer are arranged to form a double displacement sensor and are connected to the microcomputer through an acquisition device after the data acquisition. The method and the device have the advantages of accurate and convenient test and low cost, and are suitable for the research of viscous-elastic mechanical properties and aging performances under the operation of polymers and composite materials of the polymers.

The invention discloses a motorcycle guy cable performance integration test system test bed. The test bed comprises a test system test bed mechanical device for mechanically operating an object to be tested, a test system test bed electric control device for controlling the motion of the mechanical device, a data collecting processing device for collecting and processing test data and a microcomputer. The microcomputer controls the motion of the test bed mechanical device through the connected electric control device, collects various test data through the connected collecting processing device, records, saves and displays the test data and monitors the whole test process. The invention improves the automation test degree, reduces manual operation process, automatically records and saves the test data and displays in a figure or table form, obviously improves the measuring precision and effectively improves the test efficiency. The invention is extensively applied to the safety test of the motorcycle guy cable to be as the motorcycle guy cable performance test experiment platform.

The invention discloses a brake control unit for a locomotive electro-pneumatic brake, which comprises a main control unit, a switching value input unit, a switching value output unit, an analog value input unit, a relay unit, a PWM control unit, a MVB communication unit and a power management unit supplying power for all the components; wherein, the switching value input unit used for inputting digital control signals is connected with an input terminal of the main control unit; the switching value output unit used for outputting digital control signals is connected with an output terminal of the main control unit; the main control unit controls the pressure of an equalizing reservoir and a braking reservoir of the electro-pneumatic brake by the PWM control unit; the main control unit is connected with peripheral equipment for communication by the communication unit and collects current signals sent by a sensor by the analog value input unit. The brake control unit has the advantages of simple and compact structure, high cost performance, etc. The functions of microcomputer control and network communication help the brake control unit improve control accuracy and enlarge application range.

The invention discloses a mirror movement neuromodulation system, which comprises a plurality of lead biological signal amplifiers, a microcomputer controller, a plurality of lead functional electric stimulators and a micro-current direct-current constant-current stimulator. The principle that functional electric stimulation and transcranial direct-current electric stimulation techniques and mirror movement neurons participate in movement control is applied comprehensively, the biological signal amplifiers, the functional electric stimulators for simulating integrated electromyography envelope signal control, and the micro-current direct-current constant-current stimulator are integrated through the microcomputer controller, myoelectric activity envelope signals are generated by processing myoelectric signals of a plurality of muscle groups which move functionally by using an uninjured side limb, and the plurality of functional electric stimulators are modulated and controlled, so that the same mirror action is generated by the plurality of muscle groups of an injured limb on an opposite side according to uninjured side myoelectric information, brain functional regulation and reconstruction are realized, the plasticity of neuronal synapsis and the recovery of neurological functions are facilitated, and the treatment effect of sports rehabilitation is achieved.

The invention discloses a multifunctional intelligent nursing bed. The multifunctional intelligent nursing bed comprises a bed body and a bed body supporting structure. A sensing and monitoring system and an auxiliary device are arranged on the periphery of the bed body, wherein the sensing and monitoring system comprises a real-time physiological monitoring device, a urinating sensor, an infrared remote controller and a wireless calling machine, and the auxiliary device comprises an electric manipulator, an automatic back lifting machine, an automatic lifting guardrail and an automatic turnover device. An automatic lifting excrement clearing system is arranged at the lower end of the bed body and comprises a lifting type pedestal pan, a temporary excrement storage box and a flushing device, an automatic opening-closing stop plate is arranged at the upper end of the lifting type pedestal pan, a triggering mechanism is arranged on the bed body and is connected with a microcomputer main control unit, and the lifting type pedestal pan is controlled to ascend and descend by a microcomputer and is connected with the hip of a patient. The multifunctional intelligent nursing bed achieves a nursing platform and nursing technology based on an intelligent wireless sensor network by taking functions such as automatic lifting, automatic cleaning and automatic drying of the pedestal pan as the cores.

A video camera which is provided with an inter-line type CCD and also which enjoys a function as a digital still camera. The video camera includes an irising mechanism for adjusting a quantity of light incident upon the CCD, an iris driving circuit for driving the irising mechanism, and a camera microcomputer for controlling operations of adjusting an incident-light quantity by the irising mechanism by controlling the iris driving circuit. The camera microcomputer controls the iris driving circuit to drive the irising mechanism, whereby the incident light upon the CCD is blocked to perform only a read-out operation while data of all the pixels is read out from the CCD.

A power-assisted bicycle includes a bicycle body with a power assistance provider and a derailleur, a microcomputer, a gear-shift control driver, and sensors. When the microcomputer decides to perform gear shifting, it controls the power assistance provider to provide an assistant power output and the gear-shift control driver to drive the derailleur to shift gears properly subject to a before-shifting time period, an in-shifting time period and an after-shifting time period. Further, the microcomputer controls the power assistance provider to change the current assistant power to a predetermined low assistant power during the before-shifting time period, or to maintain the predetermined low assistant power during the in-shifting time period, or to change the assistant power output to a level higher than the current assistant power and then to return to the said current assistant power after the end of the after-shifting time period.

The invention discloses a device for realizing a turbulent flame and shock wave visual constant volume combustion test. The device comprises a firebomb body, a fuel supply system, a heating system, an igniting system, a high-speed photography system, an air inlet and outlet system, a pressure acquisition system, a synchronous controller and a single-chip microcomputer control system. The device also comprises orifice plates with different amounts of porosity and aperture sizes. In each test, the cross section of the firebomb body is provided with one of the orifice plates through an orifice plate slot. The method utilizes hydrogen as fuel. Through use of the orifice plates with different amounts of porosity and aperture sizes, turbulent flame with different intensities is obtained and visible shock wave is produced. The invention researches interaction of reflection shock wave and flame and interaction-caused influence on pressure fluctuation in a cylinder. The method and device provide theoretical thinking for pressure fluctuation phenomenon in an enclosed space and knocking of a small reinforced gasoline engine. The device and method realize full transparent visualization of the whole combustion chamber and clear and visual shooting of the whole flame development process.

The invention provides an electronic cigarette capable of achieving automatic control of an atomization wire resistance value. The electronic cigarette comprises the atomization wire, and is characterized in that the atomization wire is an alloy wire. The electronic cigarette further comprises a resistance acquisition circuit, a single chip microcomputer and a power adjusting circuit, wherein the resistance acquisition circuit is in series connection with the atomization wire, the single chip microcomputer is connected with the output end of the resistance acquisition circuit and is capable of processing analog signals outputted by the resistance acquisition circuit, the power adjusting circuit is connected with the single chip microcomputer and controlled by the same, and the output end of the power adjusting circuit is connected with the atomization wire. The electronic cigarette has the advantages that the electronic cigarette is applicable to the alloy atomization wire small in resistivity temperature coefficient; when the resistance value of the atomization wire changes, a real-time voltage value at two ends of the atomization wire is acquired and converted into a real-time resistance value after being amplified and converted, and the single chip microcomputer controls and adjusts power loaded on the atomization wire according to a result obtained by comparing the real-time resistance value with a preset resistance value so as to adjust the resistance value of the atomization wire to be equal to the preset resistance value; the electronic cigarette has the automatic resistance value detection function and the automatic resistance value control function.

The invention discloses a robot navigation system, a robot navigation method and a robot navigation device. The system comprises a principal computer, and driving wheels, a laser radar sensor, a gyroscope, an accelerometer, an encoder, a motor and a single chip microcomputer which are mounted on a robot. The single chip microcomputer communicates with the principal computer. The laser radar sensor is connected with the principal computer. The single chip microcomputer is used for collecting data sent by the gyroscope, the accelerometer and the encoder and sending the data to the principal computer. The principal computer is used for calculating out the moving path of the robot and the corresponding moving speed according to the data sent by the laser radar sensor, the gyroscope, the accelerometer and the encoder, converting the moving path and the moving speed into a pulse signal and sending the pulse signal to the single chip microcomputer. The single chip microcomputer controls the working state of the motor according to the pulse signal, so the motor makes the driving wheels move and the robot moves. With the robot navigation system provided by the invention, the walking of a robot can be controlled intelligently, and the labor consumption and the maintenance cost are reduced.

A memory section stores a plurality of electric power saving modes classified into groups by combining a plurality of electric power saving items in a television image receiver, a DVD or an LCD. Microcomputer controls one of the plurality of the electric power saving modes to be set to ON / OFF, thereby making it possible to ON / OFF control a plurality of electric power saving items included in that electric power saving mode includes all together. In accordance with this electric power saving mode, a dimming level of a backlight is decreased to a preset brightness or the backlight is automatically shut down.

The invention discloses a green and intelligent numerical-control light emitting diode (LED) driving power supply. The green and intelligent numerical-control LED driving power supply comprises an alternating-current input rectification filtering unit, a PFC active power factor rectifying unit, a flyback power supply transformation unit, an output filtering unit, a constant current dual output unit, a voltage / current feedback and sampling unit, a linear optocoupler insulation unit, an MSP430F149 single chip microcomputer control module and an affiliating temperature measurement module, a liquid crystal display module, a keyboard input module, an automatic light sensing and light adjusting module, a global system for mobile communications (GSM) wireless communication module, an auxiliary power supply module of a single chip microcomputer, an I / O extended module, a crystal oscillating module, an auxiliary protection circuit and a wireless remote control light adjusting ZIGBEE module. The green and intelligent numerical-control LED driving power supply has the advantages of being high in efficiency, green in high power factor, capable of sending information of abnormal service conditions, and high in digital and intelligentization degree.

The invention provides a brake control device for railway carriages. The brake control device comprises a brake air cylinder, a brake controller, an electric pneumatic change-over valve, a relay valve, an emergency electromagnetic valve, a load adjustment valve, a brake two-way valve, a distribution valve and a working air cylinder, wherein the brake controller outputs a current signal for to the electric pneumatic change-over valve; the electric pneumatic change-over valve converts the current signal into a pilot control pressure signal and then sends to a first pressure input port of the relay valve; the relay valve performs flow amplification on the pilot control pressure signal and inputs a brake cylinder pipe; two pressure input ports of the brake two-way valve are respectively connected with pressure output ports of the emergency electromagnetic valve and the distribution valve through pipelines; the pressure input port of the brake two-way valve is connected with a second pressure input port of the relay valve through the load adjustment valve; and an adjustment signal input port of the load adjustment valve is communicated with two air springs. According to the brake control device, a microcomputer controlled direct electric pneumatic brake system and an air automatic brake system are integrated. Under normal conditions, the direct system is used; and the automatic system is taken as a safe brake method to satisfy rescue and loopback requirements.