64 results about "Microcomputer system" patented technology

The invention discloses an aircraft attitude control method and device based on a semiconductor microcomputer system, and the method comprises the steps: collecting the multi-source sensor data of an aircraft, calculating an attitude error vector, and constructing a three-dimensional error space coordinate system; taking the three-dimensional error space coordinate system as a reference, adjusting the model in real time, and solving the optimal attitude adjustment amount in a prediction window period; the optimal attitude adjustment amount is input into an execution mechanism distribution module, and a thrust adjustment instruction sequence and a control surface deflection angle instruction queue of each vector propeller are generated through calculation in combination with a propeller response matrix and a control surface efficiency coefficient; dynamically correcting and predicting weight parameters of the controller through closed-loop verification; and updating the multi-objective optimization model based on the corrected parameters, adjusting the instruction distribution proportion through a dynamic reconfiguration interface, and writing the updated parameters into the attitude database to form a complete closed-loop period. According to the invention, high-precision real-time control of the attitude of the aircraft is realized, and the flight stability and the energy efficiency ratio in a complex environment are improved.

The invention relates to a microcomputer system performance test and evaluation method, device and equipment and a medium, and the microcomputer system performance test and evaluation method comprises the steps: if it is detected that a key event of a microcomputer system has occurred, executing a corresponding test cycle operation according to the key event; and converting and generating uniformly formatted real-time log data based on each test result in the test cycle operation, clustering and matching the real-time log data to a predefined abnormal state, and matching corresponding adjustment parameters based on the abnormal state to obtain the power state of the microcomputer system. Executing a first dynamic adjustment operation of the power state based on the performance adjustment parameter; according to the method, standardized real-time log data is generated from each test result, and the log data can be intelligently clustered and matched to a predefined abnormal state, so that the abnormity can be quickly identified, the adjustment parameters are generated, the power state and the test process of the system are dynamically optimized, and the flexibility of abnormity response and power consumption adjustment is improved.

The invention discloses an infusion pump with a bubble detection function, and belongs to the field of infusion devices.The infusion pump comprises a shell, connecting mechanisms are arranged on the two sides of the shell, the shell is installed on an external infusion rod through the connecting mechanisms, the interior of the shell is hollow, an arc-shaped seat is fixedly installed on one side of the shell, and the infusion pump further comprises a penetrating opening and a notch; the upper end and the lower end of the arc-shaped base are each provided with an ultrasonic bubble sensor embedded into the arc-shaped base, a microcomputer system controller is installed on the shell and used for controlling the ultrasonic bubble sensors to work, and a peristaltic pump mechanism is arranged in the notch. The ultrasonic bubble sensors are embedded into the upper end and the lower end of the arc-shaped base, a surrounding type detection area for the infusion hose is formed, planar scanning is conducted on a medium in the hose, and misjudgment caused by the uneven surface of the hose or liquid medicine residues is reduced. The contact surface of the sensor and the hose is expanded from a point to an arc-shaped area, so that the influence of local wrinkles or particles on signals is reduced.

The invention discloses a new energy locomotive braking reconnection system and a control method thereof. The reconnection system comprises a leading locomotive and an auxiliary locomotive. The leading locomotive is connected with the auxiliary locomotive through a train network cable; the leading locomotive and the auxiliary locomotive are the same in structure and each comprise a brake controller, a train microcomputer system and a brake control module. The brake control module comprises a brake control unit and a brake cylinder control unit; the brake control unit is respectively connected with the brake controller, the train microcomputer system and the brake cylinder control unit; and the train microcomputer system in the leading locomotive is connected with the train microcomputer system in the supplementary locomotive through a train network cable. According to the invention, synchronous and accurate control of air brake reconnection control, hybrid brake reconnection control and brake reconnection of the new energy locomotive is realized.

The invention discloses a medical information module big data-based low-energy-consumption single-chip microcomputer system, which comprises a hardware framework and a software framework, and is characterized in that the hardware framework is a single-chip microcomputer hardware platform, and the single-chip microcomputer hardware platform comprises a processor, a memory, a peripheral interface, a power supply and a resource sharing center; the resource sharing center is in electric signal connection with a centralized prescription checking module, a health follow-up visit module, a regional inspection module, a network electrocardio module, a disinfection supply module, a medicine distribution and supply module, a medical care scheduling module, an image cloud diagnosis module, a remote consultation module and an intelligent first-aid module in sequence; the software framework comprises a low-power-consumption management module and an RTOS management module. According to the scheme, the resource sharing center is controlled to build all doctor-patient network information modules, medical information data are collected in an omnibearing mode, the overall energy consumption of the system is effectively reduced through a low-power-consumption management algorithm, and the endurance time of related equipment is prolonged, so that medical information big data are continuously captured, and good two-way services are provided for doctors and patients.

The invention relates to the technical field of software design, and provides a log recording method and device suitable for a single-chip microcomputer program. When the single-chip microcomputer system is started, the log system obtains the current storage state from the storage system; when the log recording event is detected, receiving original log data from the corresponding application module from the bus interface; according to the original log data, log information needing to be recorded is obtained; according to the current storage state, storing the log information to the storage system through the bus interface; according to the log recording method and system, the practicability of a log recording function is improved in a mode of constructing a log system and using software abstraction, the cost for realizing the log recording function is reduced, and the problem that various logs in a single chip microcomputer system cannot be efficiently, reliably, accurately and rapidly recorded is solved.

The present application relates to filter press equipment technical field, specifically to a kind of high-efficiency fully automatic slurry preparation filter washing system, including multiple slurry preparation pools, washing medicine pool and clean water pool, slurry preparation pool top surface is fixedly installed with slurry preparation pump, slurry preparation pump output end is fixedly connected with slurry preparation pipeline, slurry preparation pipeline output end is fixedly connected with first liquid storage tank, slurry preparation pipeline and first liquid storage tank junction place are fixedly installed with slurry preparation flowmeter, first liquid storage tank side is fixedly connected with slurry preparation sampling bottle, slurry preparation sampling bottle side is fixedly connected with slurry preparation concentration meter;First liquid storage tank side is fixedly connected with first electric control valve, first electric control valve is connected with microcomputer system by circuit, first electric control valve output end is fixedly connected with filter press pump, filter press pump output end is fixedly connected with filter press, and filter press side is fixedly connected with hydraulic station;The present application can reduce slurry pool, stirring and other hardware facilities, directly metering dispensing formula material by slurry pump, reduce error, improve the stability of finished product.

Methods and apparatus can be used to turn an existing 240 VAC or 480 VAC / 600 VAC outlet into two or more time-sharing, i.e., one operating at a time, outlets. An AC switch box with two time-sharing outlets can be made with either a mechanical switch for switching which load receives power, or automatically, by a microcomputer system, for example. In the automatic AC switch box, the non-favored outlet may be typically powered on unless a load is detected at the favored / default outlet, when power to the non-favored outlet is automatically disconnected until the load is reduced or eliminated.

The utility model provides a hand-held portable GDU board testing device, comprising a single-chip microcomputer system module used for receiving a control signal so as to generate a driving signal according to the control signal, and also used for generating a test state result of a GDU module to be tested according to a feedback signal of the GDU module to be tested; the output display circuit module is used for displaying a test state result; the upper computer communication module is used for enabling the testing device to communicate with an upper computer; the trigger feedback circuit module is used for driving the GDU to-be-tested module according to the driving signal and receiving a feedback signal; the input control circuit module is used for inputting a control signal; the battery power supply module is used for providing working power for the testing device. According to the testing device, manual operation in the detection process is reduced, so that the GDU board testing efficiency is improved, meanwhile, process data are sent to the upper computer, testing data can be visually seen on the upper computer, comprehensive evaluation of the GDU board is facilitated, and the problem of incomplete detection is solved.

The invention relates to the technical field of embedded software systems, and provides a file management method and system based on NOR Flash, and the method comprises the steps: dividing the NOR Flash into a linked list area and a data area, setting a plurality of first sectors in the linked list area, and setting a plurality of second sectors in the data area; reserving an erasing transfer sector in the linked list area; when the corresponding first sector of the linked list area is updated and filled with one type of management information, partial management information in the corresponding first sector in the linked list area is transferred and erased based on the reserved erasing transfer sector; and when a plurality of second sectors corresponding to the data area are fully written with one type of data content, erasing the data content written in the second sectors corresponding to the previous part according to the sequence of written data, and retaining the data content written in the second sectors corresponding to the later part. According to the method, the space is pre-allocated for each file, meanwhile, the erasing balance is considered, and the method is suitable for a single-chip microcomputer system with shortage of resources.

The invention belongs to the technical field of single-chip microcomputers, and particularly relates to a single-chip microcomputer system and a reset circuit thereof. The reset circuit comprises a driving unit and an output unit, the driving unit comprises a first current-limiting resistor and a reset capacitor which are connected in series between a power supply and a grounding end, and the series connection point of the first current-limiting resistor and the reset capacitor is in control connection with the output unit, so that when the voltage of the power supply meets a reset voltage threshold value, the output unit is reset. The output unit outputs a reset signal used for resetting the single chip microcomputer, and the driving unit further comprises divider resistors connected to the two ends of the reset capacitor in parallel, so that the reset voltage threshold value can be adjusted by adjusting the resistance values of the divider resistors and / or the first current-limiting resistor. The reset circuit solves the technical problem that in the prior art, due to the fact that the reset threshold voltage of a reset circuit is not adjustable, the applicability to different single-chip microcomputers is not high.

The invention relates to the technical field of power supply management, in particular to a standby power supply management system and method based on a gas alarm controller. The system comprises a standby power supply management board which is provided with a standby power isolation power supply module and an MCU power supply selection circuit to provide a stable isolation standby power supply for a single-chip microcomputer system module; the BMS isolation communication module is arranged, so that the reliability of IIC bus communication between the single chip microcomputer and the battery management chip is ensured; through a circuit board temperature detection function formed by an NTC thermistor, temperature monitoring of the power panel itself is realized. And the second output voltage control module is equipped with a short-circuit protection circuit and a short-circuit state detection circuit, so that hardware-level rapid protection of an external load is realized. According to the standby power supply management system and method based on the gas alarm controller, electrical disturbance and communication errors caused by non-common ground can be effectively eliminated, and therefore the reliability and safety of the system are comprehensively improved.

The utility model provides a dummy load device for laser power supply debugging, which comprises n groups of load diode arrays, a relay, a power supply module and a control circuit, the load diode arrays are sequentially numbered, each group is sequentially provided with 2, 4,..., 2n diodes connected in series, the relay is connected with the power supply module, the relay is connected with the power supply module, and the control circuit is connected with the relay. The load diode arrays are connected in series according to a serial number sequence, relays are arranged between the first and last load diode arrays and the control circuit and between the load diode arrays, normally closed ends of the relays are connected with the diode arrays to form backflow, and a connecting circuit is arranged between the adjacent relays. The connecting circuit is connected with the normally open ends of the relays, the control circuit is controlled by adopting a single-chip microcomputer system and is connected with and controls a switch of each relay, and the power supply module supplies power to the control circuit. The device is easy to regulate and control, and has a current monitoring function, a voltage protection function and an over-temperature protection function.

The present invention discloses an auxiliary system and control method for skydiving interval control signals. The system includes: a main unit, the top of the main unit has a first interface, and the bottom thereof has a second interface; wherein, the main unit includes a single-chip microcomputer system board and a main panel; a wire control switch, the wire control switch is connected to the main unit through the first interface; a power supply box, the power supply box is connected to the main unit through the second interface; a mobile terminal, the mobile terminal is wirelessly communicatively connected to the main unit; sensors, two pairs of the sensors are arranged on the left and right sides of the guardrail. Among them, the receiver of the sensor is fixed on the guardrail and connected to the power supply box, and the transmitter of the sensor is arranged above the floor; a signal generating device, the signal generating device is on both sides of the guardrail. The closed-loop control of the skydiving interval is realized, the operation difficulty is effectively reduced, the signal accuracy is high, and the technical effects of greatly improving the stability and safety are achieved.

The application discloses a stable and reliable single-chip system communication method, which comprises a master controller and a slave controller, and the communication method comprises the following steps: S1, the master controller and the slave controller are powered on, and the master controller and the slave controller are communicated through a first communication line and a second communication line; S2, a third timer starts to accumulate time, and it is judged whether a response signal is received by a first signal receiving port within a preset time of the third timer; if yes, the third timer is cleared, and the master controller processes the response data; if not, the communication mode of the master controller and / or the slave controller is adjusted according to the connection state of the first communication line and / or the second communication line. The application can reduce the failure rate and keep the system normal operation.

The utility model provides a relay monitoring device. The relay monitoring device comprises a single-chip microcomputer system, a coil voltage detection loop, a contact state detection loop, an address coding loop and a detection system power supply loop. The single-chip microcomputer system is connected with the coil voltage detection loop, the contact state detection loop and the address coding loop, and the single-chip microcomputer system, the coil voltage detection loop, the contact state detection loop and the address coding loop are all connected with the detection system power supply loop. The coil voltage detection loop and the contact state detection loop are connected with the relay. According to the invention, the coil voltage and contact level state of the relay can be detected in real time, and the contact actuation time and relay actuation times are calculated; if the relay breaks down, the relay with the fault can be positioned, the coil voltage of the relay with the fault, the level state of the corresponding contact and the action time of the contact can be obtained, and a reliable basis is provided for later vehicle state and fault analysis.

The invention relates to the technical field of lower limb venous thrombosis prevention, in particular to a lower limb venous thrombosis prevention system based on Doppler ultrasonic blood flow detection feedback, which comprises an upper computer, a single chip microcomputer system control device, an inflation and deflation device, a flexible ultrasonic blood flow velocity detection sensor and a lower limb venous thrombosis prevention device, the upper computer is used for acquiring the blood flow velocity and sending a control instruction to the single chip microcomputer system control device; the single-chip microcomputer system control device is used for controlling the flexible ultrasonic blood flow velocity detection sensor and the inflation and deflation device to work and can collect ultrasonic Doppler echo signals. The lower limb venous thrombosis prevention device is used for preventing thrombosis; the flexible ultrasonic blood flow velocity detection sensor is used for generating ultrasonic signals and receiving Doppler echo signals of the ultrasonic signals. The blood flow velocity can be accurately calculated, the flexible and portable lower limb venous thrombosis prevention device is used for preventing thrombosis and monitoring the treatment effect in real time, and the lower limb venous thrombosis prevention device is easy to operate and convenient to use.

The invention relates to the technical field of testing machine metering, in particular to a metering device for the moving speed of a testing machine beam. The device comprises a base, a fixed ruler, a sliding ruler, a magnetic base and a single-chip microcomputer system integrated in the sliding ruler. And the magnetic base is used for adsorbing and fixing the sliding ruler on a movable cross beam of a testing machine. When the cross beam moves, the sliding ruler is driven to move relative to the fixed ruler, and the displacement sensor integrated in the sliding ruler detects displacement in real time and generates an electric signal. The single-chip microcomputer system starts to continuously collect displacement and time data after receiving a user starting instruction, and calculates and displays the moving speed of the cross beam in real time according to the ratio of the displacement variable quantity to the time. Displacement measurement and time measurement are integrated, automatic, accurate and real-time measurement of the moving speed of the cross beam is achieved, manual operation errors are effectively avoided, and the metering efficiency and the result reliability are remarkably improved.

The invention relates to an automatic detection biochemical analyzer. The automatic detection biochemical analyzer comprises a multi-way valve 1, a multi-way valve 2, a peristaltic pump I, a peristaltic pump II, a peristaltic pump III, a peristaltic pump IV, a sampling valve and other connecting pipelines, the multi-way valve 1 is mounted at a feeding position, and the multi-way valve 2 is mounted at a discharging position; the first peristaltic pump, the second peristaltic pump, the third peristaltic pump and the fourth peristaltic pump are power transmission pumps for sampling or other materials, and a switching path is carried out by matching a cam mechanism in the center with a spring. The detection pool is subjected to injection molding by adopting high-transmittance plastic according to the principle of a conventional biochemical analyzer, and is embedded in the circulating pipeline; except that the sampling valve needs to be installed in a sample pool, other components are connected through pipelines and then integrally assembled through a plastic plate with a fixed size, and then sterilization treatment is conducted; during use, each interface is aseptically connected with a sampling valve, a substrate and a waste liquid bag; a pump, a sampling valve, a multi-way valve and a cam mechanism are logically controlled by a microcomputer system, system constants are calibrated by a standard sample, and the concentration of a sample is calculated through the system constants calibrated by the standard sample.

Disclosed are an online detection apparatus and method for a turn-to-turn short circuit in an injection generator outlet PT. The apparatus comprises a voltage source, a band-pass filter, a switch, a resistance voltage divider, a current transformer and a microcomputer system, wherein the voltage source is connected to a secondary side of a generator outlet PT through the band-pass filter and the switch in sequence; the resistance voltage divider is connected in parallel to the secondary side of the generator outlet PT; the current transformer is connected in series to a power source loop; and the microcomputer system is connected to outputs of the resistance voltage divider and the current transformer, and is used for processing and analyzing data, determining whether there is a fault in the outlet PT, and raising an alarm. The present invention solves the problem in existing detection methods for the insulation state between PT turns of generators necessarily being shut down, which is not conducive to the timely and effective detection of insulation defects, and thus the efficiency is low and the accuracy is poor.

The utility model discloses a monitoring and BOOT guide starting circuit applied to a single-chip microcomputer. The monitoring and BOOT guide starting circuit comprises a power supply input end, a watchdog circuit, an analog switch circuit, a phase inverter circuit and a single-chip microcomputer circuit. The power input end provides stable voltage; the watchdog circuit monitors the running state of the single chip microcomputer through a pulse signal interacted with the single chip microcomputer, and triggers a reset signal when the signal is abnormal; the analog switch circuit is controlled by a key, so that the single chip microcomputer can be switched between a BOOT guide mode and a normal working mode; the inverter circuit is used for adjusting the BOOT mode logic signal. Through the synergistic effect of the circuits, the program burning process is simplified, and the operation stability and reliability of the single-chip microcomputer are improved. The circuit is compact in design, high in anti-interference capability and suitable for various single-chip microcomputer system application scenes.

The invention discloses a control method for starting an electric flame furnace, which comprises a power supply conversion and control module, the power supply conversion module is powered by low-frequency alternating current mains supply, after starting, the low-frequency alternating current is firstly converted into direct current and then converted into high-frequency alternating current, and ignition is carried out after boosting, rectifying and voltage doubling; the control module is a single-chip microcomputer system, when direct current is converted into high frequency, the high frequency is controlled to change in a jumping mode through programming, and meanwhile a minimum air volume PWM signal and a PWM signal capable of enabling all the burners to be ignited instantly are output. After ignition, the single-chip microcomputer receives a control command, calculates and adjusts air volume and fire power PWM signals and further judges whether an end command is received or not, if yes, shutdown is carried out, and if not, waiting continues. According to the electric flame furnace, all furnace heads are ignited when the electric flame furnace is started, circuit protection is achieved, and the pot bottom is heated evenly.

The invention discloses an electric energy data security storage method based on power failure detection and cache compression, and belongs to the technical field of intelligent single-chip microcomputer systems. The method specifically comprises the following steps: after electrification, detecting keg data, reading and storing all electric energy data, further embedding a pre-trained model, and constructing a transaction log; based on the electric energy data accumulated in real time, creating a timed task and setting a trigger condition, when the condition is triggered, executing a specific task and updating a transaction log; on the basis of a software-hardware combination mechanism, it is ensured that data can be stored in time and a transaction log can be updated when power failure is abnormal; and when the power is recovered, executing an initialization stage to recover data, further predicting a power failure reason by using a pre-trained model, and updating a transaction log. Through a software and hardware fusion algorithm technology, the problem of loss of the electric energy data under an abnormal condition is solved, and the safety of the electric energy data is ensured.

The invention provides an automatic power-on and power-off test system and method. The automatic power-on and power-off test system comprises an upper computer, a single-chip microcomputer system connected with the upper computer, and a storage chip, a power switch and a power monitor chip which are connected with the single-chip microcomputer system. The upper computer and the single-chip microcomputer system are connected with a tested device. The power switch and the power monitor chip are connected with a tested device. The upper computer is used for sending a control instruction including test parameters to the single-chip microcomputer system. The single-chip microcomputer system is used for controlling the power switch and the power monitor chip to complete power-on and power-off tests on the tested equipment according to the control instruction, and the power switch is used for controlling the on-off of the power supply of the tested equipment according to the instruction of the single-chip microcomputer system; the power monitor chip is used for acquiring test data of operation of the tested equipment according to an instruction of the single-chip microcomputer system; and the storage chip is used for storing test parameters and test data of the tested equipment. According to the invention, a complex and configurable power-on and power-off test cycle can be automatically executed through research and development and mass production stages.

The invention relates to a three-phase signal generator and a three-phase signal generation method for an aging test of a refrigerator drive circuit, the three-phase signal generator comprises a power supply, a high-temperature test box and an aging board, the aging board is provided with a DCDC step-down chip, an LDO, a single-chip microcomputer and a 6-bit refrigerator drive circuit, and the 24V power supply supplies power to the aging board; the DCDC step-down chip reduces the voltage to 5V, and the LDO stabilizes the 5V voltage to 3.3 V to supply power to the single-chip microcomputer. The single-chip microcomputer outputs a PWM waveform through a timer, generates a three-phase square wave signal and outputs the three-phase square wave signal to the 6-bit refrigerator driving circuit. The three-phase signal generation method comprises the following steps: S1, single-chip microcomputer system initialization; S2, main circulation; and S3, timer interruption service. The beneficial effects of the invention are that a low-cost single-chip microcomputer is adopted to generate a three-phase Hall signal through a software algorithm, the hardware cost is reduced, the flexibility, the stability of signal output and the anti-interference capability are enhanced, and the long-term aging test requirements are met.

The utility model relates to a rail electric wheel rim lubrication system static test control circuit comprising a power supply J1 used for providing a power supply; the switching power supply U1 is used for converting the power supply J1 into DC5V; a DC5V power supply filter circuit; the switching power supply U1 supplies power to the single chip microcomputer U2; the switching power supply U1 supplies power to the relay U3, the output end of the single-chip microcomputer U2 is connected with the input end of the relay U3, and the single-chip microcomputer U2 is used for controlling on or off of a normally open contact of the relay U3; and the single-chip microcomputer reset circuit can reset the single-chip microcomputer U2. The static test control circuit of the tramcar rim lubrication system mainly comprises an AC220V-to-DC5V power supply, a single-chip microcomputer system and a low-level triggered optocoupler isolation relay driving module, and is used for verifying the functions of the vehicle rim lubrication system and improving the test efficiency under the static condition of a vehicle.

The utility model provides a reset circuit, a reset device and a microcomputer system, the reset circuit comprises a power interface unit and a reset signal generating unit, the reset signal generating unit comprises a first resistor, a second resistor, a third resistor, a first capacitor, a second capacitor, a first diode, a second diode and a first triode, the cathode of the first diode and the first end of the second resistor are connected with the power interface unit, and the anode of the first diode and the second end of the second resistor are connected with the collector of the first triode and the first end of the third resistor respectively. The second end of the third resistor is connected with the first end of the second capacitor and then serves as the output end of the reset signal generation unit, the first end of the first capacitor is connected with the power interface unit, and the second end of the first capacitor is connected with the first end of the first resistor and the negative electrode of the second diode. The reset circuit provided by the utility model is strong in anti-interference performance and stable in reset pulse.

The present invention discloses a diamond grinding and polishing processing device and a processing method, belonging to the technical field of grinding and polishing production. It includes a corresponding upper clamping disc and a polishing disc, as well as a humidity control module connected and communicated between the upper clamping disc and the polishing disc; wherein, a hydraulic lifting device is provided at the top of the upper clamping disc, and the hydraulic lifting device is controlled by a single-chip microcomputer system to drive the upper clamping disc to be liftable; the polishing disc is a transparent polishing disc made of nano-polycrystalline diamond material, and the polishing disc is fixed on the base of a polishing machine provided with a power device; the humidity control module sprays gas during the diamond grinding process through the ventilation holes provided around the upper clamping disc with nitrogen mixed with humidity to change the humidity environment of the grinding processing interface. This device is simple and highly flexible. It can change the surface or point to be ground by rotating the steel ball carrying the diamond, with a high degree of freedom. The bonding method does not damage the diamond, and the grinding points can be flexibly bonded and selected, improving the practicability and repeatability.

The invention discloses a device and a method for preparing a heavy liquid for a coal sinking and floating experiment, and aims to provide a device for automatically preparing a heavy liquid and recycling a separated liquid (waste liquid), so as to realize closed-loop control of the whole process of the solution and eradicate many defects of open type heavy liquid preparation since the coal sinking and floating experiment is historical. And the problems of accumulated storage and emission pollution of the separation liquid (strong acid and toxic) are solved. The device comprises nine solution barrels (1-9), zinc chloride solutions (1.2, 1.3, 1.4 and 2.0) with different densities are preloaded, liquid level sensors (10-18) and density sensors (19-27) are arranged in the solution barrels, and electric control gate valves (28-36) are assembled at an inlet and an outlet of each solution barrel and are communicated with a heavy liquid barrel (42) through a main pipeline (43), a normally-closed electric control gate valve (38) and a liquid preparation pump (39). And the heavy liquid barrel (42) is communicated with the pipeline (43) through the filter (41), the liquid return pump (40) and the electric control gate valve (37). The device automatically completes the preparation of heavy liquid and the recovery of separated liquid under the control of a microcomputer system program.

The invention relates to the technical field of ECMO, and provides a multifunctional module suitable for a portable ECMO and an expansion method of the multifunctional module, after the portable ECMO is connected with the multifunctional module, a metal electrode on a shell makes contact with a metal electrode on a shell of the portable ECMO, a single-chip microcomputer system controls a first light emitting element to emit a light signal, and the first light emitting element emits the light signal to the portable ECMO. The first light receiving element receives light signals reflected by the light guide piece and transmits the light signals to the single-chip microcomputer system, the single-chip microcomputer system detects the connection condition of the multifunctional module and the portable ECMO according to whether the first light receiving element receives the reflected light signals or not, then the relay is controlled to be switched on or switched off, and the battery damage risk is reduced.