301 results about "Pulmonary resuscitation" patented technology

Systems and methods for applying guided active compression decompression cardiopulmonary resuscitation are provided. Exemplary systems include a load cell, a handle, an adhesive pad. The handle and the adhesive pad are configured for magnetic coupling.

A method for performing cardiopulmonary resuscitation (CPR) includes elevating the heart of an individual to a first height relative to a lower body of the individual. The lower body may be in a substantially horizontal plane. The method may also include elevating the head of the individual to a second height relative to the lower body of the individual. The second height may be greater than the first height. The method may further include performing one or more of a type of CPR or a type of intrathoracic pressure regulation while elevating the heart and the head. The first height and the second height may be determined based on one or both of the type of CPR or the type of intrathoracic pressure regulation.

The invention discloses a critical medical patient respiration recovery assisting device. The device comprises a bottom plate; the left end of the top of the bottom plate is provided with a support frame; and the top of the right side of the support frame is provided with a transverse frame. In the device, an air bag moves up and down to press the cardiopulmonary part of a patient up and down, sothat the purposes of cardiopulmonary resuscitation and respiration recovery are achieved, the trouble of manual pressing operation is avoided, great convenience is brought, and the critical patient can be timely rescued; in the process of pressing the cardiopulmonary part of the patient up and down, the device has good buffer effect, thereby preventing injury of internal organs of the patient dueto overlarge pressing force; and respiration operation of inhaling and exhaling is performed on the patient to achieve the purpose of artificial respiration, and cardiopulmonary resuscitation rescue and artificial respiration are kept consistent in frequency and are performed at the same time, so that the purposes of fast rescue and respiration recovery of the patient are achieved and the effect is better.

The invention provides a lifesaving robot and an implementation method of the lifesaving robot, and relates to the technical field of lifesaving. The lifesaving robot comprises a central processing unit and further comprises an information collection unit, an information processing unit, an external chest compression unit and a respiratory resuscitation unit. The information collection unit is used for collecting information of a user. The information processing unit is used for judging whether ardio-pulmonary resuscitation operation needs to be carried out on the user or not. The external chest compression unit is used for recognizing the position where pressure needs to be applied during external chest compression operation, and carrying out cardiac resuscitation compression operation. The respiratory resuscitation unit is used for recognizing the airway opening position of the user and being cooperated with the external chest compression to perform air blowing operation on the airway. The lifesaving robot can scientifically treat and cure the user suffering from sudden cardiac arrest before an ambulance and first-aid personnel arrive, the survival rate of the user before reaching a hospital is greatly improved, and meanwhile the labor capacity of medical workers is reduced.

The invention discloses a virtual reality first aid training model doll and training system. The virtual reality first aid training model doll includes a half body model doll, a tracking system, and a sending processing module, and also includes a gyroscope, pulse position sensors, a chest compression position sensor, a displacement sensor and an air pressure sensor, wherein the gyroscope, the pulse position sensors, the chest compression position sensor, the displacement sensor and the air pressure sensor are connected with the sending processing module; and the gyroscope is arranged on the head of the half body model doll. The training system includes a model doll, a reception module, a computer host, a display screen, digital gloves and a helmet display. The virtual reality first aid training model doll and training system enable the operator to have a feeling of being personally on the scene by constructing virtual reality scenes so as to achieve the aim of cardio-pulmonary resuscitation CPR knowledge explanation, training and exam, and have the advantages of high safety, low cost and high success rate.

A Cardiac Pulmonary Resuscitation (CPR) device (CPD) for performing CPR on a patient (PT). A supporting structure (L1, L2, F) with two legs (L1, L2) shaped to accommodate space for the patient's (PT) thorax between them. The legs (L1, L2) have clamp mechanisms (CL1, CL2) to allow clamping onto a backboard (BB). A compression box (CB) with a plunger mechanism (PM) with a contact pad (CP) projecting downwards from the enclosure (CS), and a processor (P) for controlling the plunger mechanism (PM) to perform CPR on the patient (PT) in an automatic manner. A height adjustment mechanism (H) is used to fix a height (h) of the compression box (CB) relative to the supporting structure (L1, L2, F). The height adjustment mechanism (H) can allow the compression box (CB) to move in relation to the supporting structure (L1, L2, F) in a first operating state, by help of gravity. Hereby, the compression box (CB) can enter a height (H) where the contact pad is in contact with the patient's (PT) chest, preferably within a predetermined contact force range, upon clamping of the supporting structure (L1, L2, F) onto the backboard (BB). Hereby, the height and contact force parameters are inherently set automatically by the device, when the operator has clamped the CPR device (CPD) onto the backboard (BB). This setup task is easy for the operator, time without CPR can be saved, and CPR can be initiated with a correct contact force.

Medical devices, plug-ins, systems, and methods for CPR quality feedback are disclosed. The medical devices can calculate peripheral circulation relevant parameters based on measured signals containing at least partial hemodynamic characteristics. Amplitude and area characteristics included in the peripheral circulation relevant parameters can further be determined for providing feedback and control relating to CPR quality during the compression process. Also, compression interruption during CPR can be evaluated based on a pulse waveform generated from the measured signals.

Systems and methods related to the field of cardiac resuscitation, and in particular to devices for assisting rescuers in performing cardio-pulmonary resuscitation (CPR) are described herein.

The invention discloses a method for sensing occurrence of fracture in a cardio-pulmonary resuscitation process and a compression apparatus. The method for sensing the occurrence of the fracture comprises the following steps: 1) setting a distance sensor to detect a compression depth value of a compression executing part, setting a pressure sensor to detect a real-time compression pressure value of the compression executing part on a chest and transmitting the values to a central control system; 2) starting the compression executing part to execute compression actions on the chest of a patient; 3) storing a corresponding relation between the chest compressed pressure and the compression depth in the central control system as a comparison parameter; 4) updating the storage of the comparison parameter every other a certain duration or other every compression times; and 5) detecting whether a sudden change exists in the compression pressure or not, so as to judge the occurrence of the fracture. The method for sensing the occurrence of the fracture in the cardio-pulmonary resuscitation process disclosed by the invention can timely sense the situation of compression fracture in a process of implementing emergency, so as to effectively relieve fracture and secondary injury caused by the fracture, and subsequently to improve emergency quality and efficiency.

The present invention relates to an automatic cardiopulmonary resuscitation (CPR) device which, even in the middle of performing cardiopulmonary resuscitation, can measure an electrocardiogram and oxygen saturation, can measure an electroencephalogram so as to detect in real time a brain activity indicative of the degree of blood circulation in the brain, has a defibrillation function, can use a brain activity index as a CPR signal indicating the degree of cardiopulmonary resuscitation, and can remotely monitor biometric signals at a pre-hospital stage. The present invention provides a cardiopulmonary resuscitation device comprising: an electroencephalogram detection unit for detecting an electroencephalogram signal from the frontal lobe; and a calculation processing unit for detecting a brain activity index, which is used as a CPR signal indicating the degree of cardiopulmonary resuscitation, from the electroencephalogram signal received from the electroencephalogram detection unit, wherein the calculation processing unit derives, as the brain activity index, one or more of the burst suppression ratio (BSR), the beta ratio, and the SynchFastSlow (relative synchrony of fast and slow wave, SFS). The calculation processing unit eliminates noise from the electroencephalogram signal received from the electroencephalogram detection unit, and derives the beta ratio from the electroencephalogram signal, from which noise has been eliminated, using the following formula: Beta Ratio = log[spectral power (30-47 Hz) / spectral power (11-20 Hz)] (where, spectral power (30-47 Hz) denotes the spectral power in the 30-47 Hz band of the electroencephalogram, and spectral power (11-20 Hz) denotes the spectral power in the 11-20 Hz band of the electroencephalogram).

An emergency pulmonary resuscitation device is described. The device of the present invention provides emergency breathing for use in techniques such as CPR, and is preferably capable of interaction with an automatic external defibrillator. The device is easy to operate and provides feedback so that it may be used by persons without medical training. The device also works through a simple action, making it possible for it to be inexpensively manufactured and widely disseminated.

The invention provides an independent cardio-pulmonary resuscitation (CPR) indicator. By the CPR indicator, accurate and easily-implemented CPR indication is provided for a rescuer, so that the rescue success rate is increased; and the CPR indicator can be taken as a training instrument, so that the public can be trained to master right cardio-pulmonary resuscitation. The CPR is characterized by comprising a pressing box (6); a light-emitting diode set (1), a gravity acceleration sensor, a main control chip, a horn (4) and a battery are arranged in the pressing box; the light-emitting diode set, the gravity acceleration sensor, the horn and a battery are respectively connected with the main control chip; and the light-emitting diode set, the gravity acceleration sensor and the horn and the main control chip are respectively connected with the battery.

The invention discloses a portable audio-visual feedback device and method for cardio-pulmonary resuscitation. The device comprises an insulation covering blanket, a compressor and an audio-visual feedback device unit; the insulation covering blanket is used for insulating current generated when a defibrillator administers an electric shock; a displacement sensor is installed in the compressor, and is used for measuring external chest compression depth, and transmitting data to the audio-visual feedback device unit; the audio-visual feedback device unit includes a control circuit, a storage module and an output module; and the control circuit is used for receiving the data and comparing the compression depth with a standard threshold value in the storage module, and if the compression depth exceeds the set threshold value, a corresponding adjustment command is given by the output module. According to the device and the method, accurate cardio-pulmonary resuscitation guidance is more efficiently given to rescuers participating in sudden cardiac arrest rescue, and thus, sustained cardio-pulmonary resuscitation is guaranteed, the resuscitation success rate is increased, the life safety of the rescuers is guaranteed, the personal privacy of female patients is protected, and corresponding warm keeping measures are provided for patients in low-temperature weather.

The invention provides an adaptive cardiopulmonary resuscitation chest external pressing device, which effectively solves the problems of complicated operation, difficult control of pressing depth, limited adaptability, inability to automatically adjust pressing depth according to different individuals, influence on pressing efficiency and quality, and delay of rescue time in the prior art. The technical scheme is as follows: the device comprises a flat plate, wherein a transverse plate is arranged on the lower side of the flat plate; a supporting rod is arranged on the lower end surface of the flat plate; a long gear is arranged on the lower side of the flat plate; a rotary drum penetrates through the flat plate; a rotary shaft is arranged in the rotary drum; a disc-shaped gear is arranged on the right side of the long gear; a press rod penetrate through the transverse plate; a pressing block is fixed to the lower end of the press rod; a boss is arranged at the upper end of the pressrod; a convex block is arranged on the lower end surface of the disc-shaped gear; a transverse rod is arranged at the upper part of the right end of the transverse plate; a cylinder is arranged at theleft end of the transverse rod; a vertical rod is arranged in the cylinder; an inclined plate is arranged on the transverse plate; a sliding groove is formed in the inclined plate; and a wedge-shapedbulge is arranged on the transverse rod.

The invention discloses a cardiopulmonary cerebral resuscitation rescue device for emergency internal medicine department. The cardiopulmonary cerebral resuscitation rescue device comprises a bed board, wherein a movable column is movably arranged at the upper part of the left side of the bed board, a sleeve is movably connected to the top end of the movable column, a movable beam is fixedly and horizontally connected to the outer wall of the sleeve towards the side surface, and a hydraulic cylinder is movably arranged below the movable beam; and a pressing block is fixedly connected to the lower part of the hydraulic cylinder through piston rods which are uniformly arranged. The movable column is slidably arranged at the left side of the bed board, the top end of the movable column is movably connected with the movable beam through the sleeve, the hydraulic cylinder is slidably arranged at the bottom end of the movable beam, the output end of the hydraulic cylinder is connected with the pressing block through the piston rods, a lead screw motor drives a lead screw to rotate and a telescopic rod to extend and retract to adjust the position of the pressing block, so that the pressing block is aligned at the heart of a patient; and the piston rod extends and retracts to drive the pressing block to move up and down to press the heart of the patient for cardio-pulmonary resuscitation, so that the labor intensity of medical staff is greatly reduced, and the first-aid progress is prevented from being influenced.

The invention relates to a cardio-pulmonary resuscitation self-service training examination system based on an AR technology, and the system comprises an AR device which is used for providing a 3D dummy, a holographic image for guiding cardio-pulmonary resuscitation and AED operation, an image for feeding back a pressing result in real time, and a voice prompt for guiding and feeding back according to an instruction sent by a cardio-pulmonary resuscitation operation training examination terminal; a pressing exerciser which is used for being placed on the pressing part of the virtual 3D dummy in the self-service cardiopulmonary resuscitation training and examination process of the trainee, collecting various pressing information of the trainee and sending the pressing information to a cardiopulmonary resuscitation operation training and examination terminal; and the cardiopulmonary resuscitation operation training examination terminal which is used for realizing the self-service training learning of the cardiopulmonary resuscitation operation of the trainee, examining the whole cardiopulmonary resuscitation operation of the trainee, storing self-service training learning and examination data of the trainee in a learning file of the trainee, and sending an electronic training certificate after the trainee passes the examination. The system can be widely applied to the technical field of medical treatment.

The invention discloses a cardiopulmonary resuscitation machine. The cardiopulmonary resuscitation machine comprises a pressing main body, two supporting arms and a bottom plate. The pressing main body comprises a main body shell, a control component and a pressing component arranged in the main body shell, the pressing component comprises a pressing head, and the pressing head is controlled to move relative to the main body shell by the control component; the two support arms are respectively connected to the two ends of the main body shell; and the two ends of the bottom plate are respectively detachably connected to the ends of the supporting arms far away from the pressing main body. The cardiopulmonary resuscitation machine of the technical solution of the present invention is convenient to carry and convenient to disassemble.

A cardiopulmonary resuscitation coordination method is disclosed. The method comprises: identifying a plurality of portable computing devices located within an area around a coordinator, each being associated with a respective user and comprising a communication interface and a sensor component; processing user-attribute information relating to said users; processing device-attribute information relating to the identified devices; for each sensor functionality of a plurality of sensor functionalities, the coordinator assigning a respective sensor functionality to the sensor component of at least one of the identified devices in response to the processed device-attribute information and user-attribute information; the coordinator assigning a cardiopulmonary resuscitation role to at least one of the users in response to the processed device-attribute information and user-attribute information; communicating data acquired by at least one of the sensor components assigned with a sensor functionality to the coordinator; and communicating specific cardiopulmonary resuscitation coordination guidance in response to the at least one assigned cardiopulmonary resuscitation role and the acquired data.

The invention discloses a defibrillation device and method capable of conducting cardio-pulmonary resuscitation. The device comprises a pad plate, and a controller is arranged in the pad plate; an electrode slice is pasted to the chest of a patient, and the controller acquires the real-time heart rhythm of the patient through the electrode slice; the controller controls a pressing air bag to carryout cardio-pulmonary resuscitation pressing on the patient, detects the real-time heart rhythm of the patient, carries out matched filtering through an algorithm, filters out cardio-pulmonary resuscitation pressing interference signals, and judges whether the patient needs electric shock defibrillation or not; and if the patient needs electric shock, an electric shock instruction is given, and ifthe patient does not need electric shock, heart rhythm detection and judgment are conducted again until the heart rhythm of the patient returns to normal. According to the invention, an external automatic defibrillation device and a cardiopulmonary resuscitation instrument are combined. The pressing frequency of cardio-pulmonary resuscitation is controlled and output by the controller in a unified mode, so that the defibrillation device facilitates signal matching, can effectively filter waveform interference caused by pressing, not only can perform continuous cardio-pulmonary resuscitation,but also can perform effective electric shock defibrillation treatment, and improves the rescue success rate.

The invention discloses a trigger type high-frequency jet ventilator used for cardio-pulmonary resuscitation. The trigger type high-frequency jet ventilator comprises an equipment body, wherein the equipment body comprises a power supply system, a control module, a humidification system, a respiration module and a perception module, wherein the control module comprises a processor, a data collection module, a display module and a solenoid valve control module. The equipment body, the power supply system, the control module, the humidification system, the respiration module and the perception module are cooperated and can replace a traditional respirator or artificial assistance aeration, uninterrupted air injection is provided for the human body, patient oxygenation during cardiopulmonaryresuscitation is effectively improved, a rescue success rate is increased, and complications can be reduced. When external chest compression is carried out, effective aeration during a thorax springback period is guaranteed, pulmonary blood can be accelerated to flow back to the heart since pulmonary blood vessels are extruded, a heart blood returning amount is increased, blood circulation under the external chest compression is accelerated, the trigger type high-frequency jet ventilator can be used in an outdoor area without alternating current, and a patient in the open air can be rescued intime.

The invention discloses a cardio-pulmonary resuscitation pressing device for the emergency intensive care unit. The cardio-pulmonary resuscitation pressing device for the emergency intensive care unitcomprises a bottom plate, a vertical plate is fixed to the top wall of one end of the bottom plate, a first servo motor is installed at the bottom of the side, away from the bottom plate, of the vertical plate, and a second servo motor is installed at the top of the side, away from the bottom plate, of the vertical plate; and the first servo motor and the second servo motor are both externally connected with a single-chip microcomputer, and a driving end of the second servo motor penetrates through the vertical plate and is fixedly provided with a first threaded rod. According to the cardio-pulmonary resuscitation pressing device disclosed by the invention, the airway of a rescued person can be conveniently opened through the arrangement of a multifunctional combination block and a buffering pressing mechanism, the airway opening state can be continuously kept after the airway is opened, manual supporting is not needed, and meanwhile, three times of buffering are achieved for the pressing force applied during pressing, the rescued person is prevented from secondary injury by adopting a soft pressing manner with mild power, and in addition, the device can be used for rescued persons with different body types.

The invention relates to the technical field of medical equipment, in particular to an artificial external chest compression machine used for saving a patient through cardio-pulmonary resuscitation. The artificial external chest compression machine comprises a supporting frame and a compression device. The supporting frame comprises an upright column, an outer sleeve and a base. The base is a rectangular plate which is arranged transversely. The upright column is arranged on the upper portion of one end of the base. The outer sleeve is arranged on the outer side of the upright column in a sleeved mode. Two sides of the base are provided with supporting plates respectively, wherein the supporting plates are in hinge joint. Masts are arranged on two sides of each supporting plate. The compression device comprises a lower supporting rod, an upper supporting rod, a pressing rod, a fixing sleeve, an anchor peg, a pressing depth limiting ring and a pressing block. The lower supporting rod is located below the upper supporting rod. The upper end of the upper supporting rod is connected with the pressing rod. The upper end of the lower supporting rod is fixedly connected with the fixing sleeve. The anchor peg is inserted in the fixing sleeve. A reset limiting disc and the pressing block are arranged at the lower end of the anchor peg. A spring is arranged between the pressing rod and the lower supporting rod. The artificial external chest compression machine has the advantages of being reasonable and simple in structure, simple and convenient to operate, free from restriction of a power supply in use, and capable of transferring the patient while saving the patient continuously.

An improved HRnet model based on an attention mechanism is characterized in that when an input F serves as an input feature map, an attention mechanism module is added, and the attention mechanism module is subjected to the following two operations: by adopting the technical scheme, the improved HRnet model based on the attention mechanism has the following beneficial effects that on the basis ofan original HRnet model, the attention mechanism model is added, so that the improved HRNet is used for human body posture detection in the cardio-pulmonary resuscitation pressing action process, an accurate backbone network is provided by the model for example segmentation models of the chest, the head and the like of a dummy in cardio-pulmonary resuscitation medical examination, and the detection precision of the model is improved.

A method for performing cardiopulmonary resuscitation (CPR) includes elevating the head, heart and shoulders of an individual from a starting elevation angle to a final elevation angle greater than zero degrees relative to horizontal while performing CPR by repeatedly compressing the chest. The method includes elevating the brain within a time period selected to be slow enough to permit a sufficient amount of blood to flow to the brain throughout the elevation time period. The method also includes regulating the intrathoracic pressure of the individual while performing CPR. The performance of chest compressions is stopped and after stopping the performance of chest compressions, the head, heart, and shoulders are promptly from the final elevation angle within a timeframe selected to prevent significant drainage of blood from the brain until the head, heart and shoulders are lowered.

The invention discloses a medical bed for the emergency department with a function of cardio-pulmonary resuscitation assisting. The medical bed comprises side protection plates symmetrically arranged at the edges of the left side and the right side of a medical bed main body, wherein driven racks capable of driving the side protection plates to automatically clamp are fixedly mounted at the bottom ends of the lower portions of the side protection plates; and an assisting device, wherein the assisting device is movably mounted on the inner sides of supporting columns, a pressing block capable of automatically conducting external chest compression on a patient is arranged on the inner side of the lower portion of the assisting device, and a soft silica gel material is arranged on the lower surface of the pressing block. According to the medical bed for the emergency department with the function of cardio-pulmonary resuscitation assisting, the novel structural design is adopted, the cardiopulmonary resuscitation assisting device is additionally arranged on the upper portion of the medical bed, and operation of medical staff can be replaced by machinery, so that physical power of doctors is saved and the hands of the doctors are freed up for other rescue measures; and shaking generated in the transferring process of the medical bed is absorbed by damping springs below, so that the shaking amplitude can be greatly reduced, and the possibility of secondary injury is reduced.

The invention relates to the field of medical treatment, in particular to a cardiopulmonary resuscitation timing beat meter. The cardiopulmonary resuscitation timing beat meter comprises a first pulse counter, a first timer and an alarm, wherein a pulse generator generates and outputs continuous pulses, the first pulse counter is connected with the pulse generator and receives the pulses and counts the number of the pulses, when the counted number of the pulses reaches a first standard value, a first excitation pulse is output; the first timer is connected with the first pulse counter, is reset when the time reaches a first standard time and resets the first pulse counter; the alarm is connected with the first pulse counter and issues a first alarm when the first pulse counter reaches the first standard value; and the alarm is connected with the first timer and issues a second alarm when the first timer reaches the first standard time. The invention relates to a cardiopulmonary resuscitation timing beat metering method. A timing function and a beat counting function are realized in the cardiopulmonary resuscitation process, so that the error rate of the salvage personnel can be greatly reduced.

The invention discloses an automatic multifunctional venipuncture blood sampling device. The automatic multifunctional venipuncture blood sampling device comprises an arm binding seat and a venipuncture assembly. A venipuncture frame and a pulse pressing assembly are arranged on the arm binding seat; the venipuncture assembly comprises a venipuncture seat, and the venipuncture seat is obliquely arranged in the venipuncture frame through a guide rail adjusting assembly; a limiting and disinfecting mechanism is horizontally fixed at the bottom of the venipuncture seat and is used for limiting veins and disinfecting skin during puncture; and a puncture needle is slidably arranged on the venipuncture seat through a guide rail frame. Automatic venipuncture is achieved, manual operation of professionals is not needed, the problems of environment, diseases, human resources and the like of shock puncture blood drawing difficulty patients and cardio-pulmonary resuscitation patients in field first-aid, ambulance transfer or emergency first-aid medical treatment can be solved, rapid and effective puncture is achieved, a life channel can be established as soon as possible, and the patient rescue success rate is improved.

The invention discloses a medical model device for simulating first-aid human cardio-pulmonary resuscitation, and relates to the technical field of medical models. The medical model device comprises a thoracic cavity model and a head model, the head model is fixedly arranged at the left end of the thoracic cavity model, the top side of the thoracic cavity model is provided with a silica gel sheet, and the middle part of the bottom side of the silica gel sheet is fixedly provided with a pressing sheet. According to the medical model device for simulating first-aid human body cardio-pulmonary resuscitation, through cooperation of the pressing piece, a connecting rod, an extrusion piece, a rubber plug, a cylinder, a connecting transverse plate, a top plate, a telescopic rod and a square sliding sleeve which are arranged in the thoracic cavity model, when the pressing piece of the thoracic cavity model is pressed, a certain resistance can be generated through a spring arranged outside the telescopic rod in a sleeving mode, and the real rebounding effect generated when the chest of a patient is pressed during cardiopulmonary resuscitation can be simulated, so that trainees can feel cardiopulmonary first aid closer to the real effect; and after the rebounding effect is enhanced, the rebounding effect better fits the actual response of a normal human body, so that the simulation effect can be prevented from being affected, and operation verisimilitude is achieved.

The invention discloses a press control device of a cardio-pulmonary resuscitation machine and a control method thereof, and the press control device relates to a medical appliance. The device comprises an integrated circuit control unit, a reversing solenoid valve unit and a press unit which are sequentially connected from front to back. The integrated circuit control unit comprises a microcontroller, a power supply circuit and a reset circuit. The method mainly comprises the following steps: determining press air supply time n seconds corresponding to press depth x millimeters according to the relation between the press depth and the press air supply time; determining the circulation time 2i seconds of a press / shrinkage operation according to the press frequency; finishing n-second pressair supply by the reversing solenoid valve unit; downwards moving to the required press depth by the piston; realizing press air discharge by the reversing solenoid valve unit after starting to pressfor i seconds; and returning to a press initial position under the action of a return spring by the piston. Because the press control device has electronic and digital control functions and strong expandability, individualized ordering can be realized according to user demands.