4784results about How to "Guaranteed comfort" patented technology

The invention relates to a preparation method and an application of multistage-spreading heat-dissipation fire-proof heat-insulation composite fabric. The multistage-spreading heat-dissipation fire-proof heat-insulation composite fabric is formed by successively arranging and laminating a metal foil reflection layer, a phase change temperature limitation layer, an interval composite membrane heat-insulation layer and a flame-retardant comfortable layer, wherein the metal foil reflection layer has high reflectivity and an enhanced heat-dissipation function; the phase change temperature limitation layer has functions of high energy consumption absorption and evenly-distributed heat conduction; the interval composite membrane heat-insulation layer has the functions of reflection insulation and even distribution of heat; and the flame-retardant comfortable layer has the functions of low-contact heat conduction, heat insulation and comfort. When the front side of the multistage-spreading heat-dissipation fire-proof heat-insulation composite fabric is under the action of open fire and strong heat flow environment, the back side of the multistage-spreading heat-dissipation fire-proof heat-insulation composite fabric can be kept below 50DEG C which is near the safe temperature state of the human skin, and the integral structural form and the mechanical property are stable. The natural thickness of the composite fabric is 5-15mm, the compression thickness of the composite fabric is 3-8mm, and the square meter quality of the composite fabric is 400-1500g / m<2>. The composite fabric is fire-proof heat-insulation material which is totally sealed, stuck and sewn and can be used for individual protection and environment heat insulation in special high-temperature occasions, such as fire control, military, exploration, safe escape and industry and the like.

The invention relates to a preparation method and an application of multistage-spreading heat-dissipation fire-proof heat-insulation composite fabric. The multistage-spreading heat-dissipation fire-proof heat-insulation composite fabric is formed by successively arranging and laminating a metal foil reflection layer, a phase change temperature limitation layer, an interval composite membrane heat-insulation layer and a flame-retardant comfortable layer, wherein the metal foil reflection layer has high reflectivity and an enhanced heat-dissipation function; the phase change temperature limitation layer has functions of high energy consumption absorption and evenly-distributed heat conduction; the interval composite membrane heat-insulation layer has the functions of reflection insulation and even distribution of heat; and the flame-retardant comfortable layer has the functions of low-contact heat conduction, heat insulation and comfort. When the front side of the multistage-spreading heat-dissipation fire-proof heat-insulation composite fabric is under the action of open fire and strong heat flow environment, the back side of the multistage-spreading heat-dissipation fire-proof heat-insulation composite fabric can be kept below 50DEG C which is near the safe temperature state of the human skin, and the integral structural form and the mechanical property are stable. The natural thickness of the composite fabric is 5-15mm, the compression thickness of the composite fabric is 3-8mm, and the square meter quality of the composite fabric is 400-1500g / m<2>. The composite fabric is fire-proof heat-insulation material which is totally sealed, stuck and sewn and can be used for individual protection and environment heat insulation in special high-temperature occasions, such as fire control, military, exploration, safe escape and industry and the like.

The invention provides an automatic parking system and belongs to the technical field of automobile control. The automatic parking system comprises an ultrasonic radar detector, a camera probe, a parking controller and a driving control module, wherein the parking controller is used for receiving barrier distance data detected by the ultrasonic radar detector and image information collected by the camera probe, obtaining the parking space and planning and correcting the parking path in real time by combination with information of an automobile, and sending a control instruction to control the driving control module to perform steering, speed changing, braking and parking control over the automobile according to the parking path, so that the automobile is driven according to the parking path to be parked. The parking controller calculates the distance data and the image information, and the sensing capacity of the automatic parking system on the real environment is enhanced since the parking controller and the driving control module have complementary advantages; and meanwhile, the parking controller controls the driving control module to achieve an automatic parking function, a multi-sensor identification mode is adopted, robustness of the system is enhanced, and convenience and comfort are ensured when a driver uses the automatic parking system.

The invention discloses a defrosting control method of an air conditioner. The control method comprises the following steps that environment temperature and the temperature of an outdoor heat exchanger outlet or the temperature of a super cooling section are obtained; whether the defrosting condition is met or not is judged according to the environment temperature and the temperature of the outdoor heat exchanger outlet or the temperature of the super cooling section; when the judgment result shows that the defrosting condition is met, the wind speed of an indoor fan is decelerated, an electronic expansion valve is controlled to be lowered to the first opening degree state, an outdoor fan is closed, a compressor is regulated to the defrosting frequency, after the preset time, and the first ascending speed is used for controlling the electronic expansion valve to be raised to the second opening degree state, wherein the opening degree value of the second opening degree state is greater than the opening value of the first opening degree state. The defrosting control method of the air conditioner has the advantages that the defrosting can be realized without stopping the compressor, the method is simple, and the reliability is high. The invention also provides the air conditioner.

The embodiment of the invention provides an in-loop rapid simulation test system of an unmanned vehicle. The system comprises: a virtual simulation test subsystem used for generating a virtual test scene and transmitting a pavement state control instruction to a test bench control subsystem; the test bench control subsystem used for simulating a pavement state, as well as estimating the driving performance of the unmanned vehicle according to driving parameters of the unmanned vehicle; and an unmanned vehicle control subsystem used for performing driving control on the unmanned vehicle according to the virtual test scene. The above system adopts the simulation test mode of combining the virtual reality technology with the hardware in-loop, so that a controllable, repeatable and effective in-loop rapid simulation test of the unmanned vehicle can be achieved indoors; and furthermore, all extreme or special road conditions are exhausted as much as possible, so that the safety and the reliability of the unmanned vehicle before start off can be fully guaranteed. The embodiment of the invention further provides an in-loop rapid simulation test method of the unmanned vehicle.

The invention provides a panoramic fusion automatic parking system and method and belongs to the technical field of vehicle control. The system comprises an information acquisition module, a parking controller and a vehicle control module. The parking controller is used for receiving distance data and image information, obtaining a parking space in combination with own vehicle information, conducting redundancy recognition on the parking space, planning and correcting a parking route in real time and sending a control command to control the vehicle control module to travel according to the parking route so as to park a vehicle. The parking controller calculates the distance data and the image information, the advantages of the distance data and the image information complement each other,the sensory ability of the automatic parking system to the true environment is enhanced, meanwhile, the parking controller controls the vehicle control module to achieve an automatic parking function,a multi-sensor recognition mode is adopted, the robustness of the system is enhanced, and use convenience and comfort of a driver are guaranteed.

The invention provides wearable equipment, an air conditioner control device, an air conditioner control method and an air conditioner. The wearable equipment comprises a detection unit, a calculation unit, a conversion unit and a sending unit, wherein the detection unit is used for detecting the breathing frequency, body temperature and / or infrared heat generating amount of a user, the calculation unit is connected with the detection unit, and is used for converting the infrared heat generating amount into the heat radiating amount of the user, and calculating the difference between the heat radiating amount and the standard heat radiating amount, the conversion unit is connected with the detection unit and the calculation unit, and is used for converting the difference value into a heat radiating signal, and converting the breathing frequency and / or body temperature into a body function signal, and the sending unit is connected with the conversion unit, and is used for sending the heat radiating signal and / or the body function signal to the outside. By adopting the technical scheme, the running temperature of the air conditioner is adjusted according to the detected body condition information of the user, so the temperature adjusting of the air conditioner is more accurate, and then the temperature is suitable for different populations with different body conditions.

The invention provides a path planning method for an unmanned vehicle under the structured environment, and comprises the following steps: S1, positioning; S2, analyzing the road condition of the current lane, determining whether complete re-planning needs to be carried out or not, and if yes, turning to the step S3, if not, S4, carrying out the complete re-planning; S4, updating a local planningresult. The invention aims to design a planning method of an unmanned vehicle under a structured environment integrating path planning and channel changing decision, so that the safety and the comfortof the running of the unmanned vehicle are guaranteed.

The invention discloses a control method and device for condensation prevention of an air conditioner and the air conditioner. The method comprises following steps: determining whether the wind level set by the air conditioner is higher than medium-speed wind level or not when the air conditioner operates in a cooling state and a compressor of the air conditioner is started; obtaining first temperature difference between indoor ambient temperature of the set wind level and inner evaporator tube temperature when the set wind level is less than or equal to the medium-speed wind level and determining whether the first temperature difference satisfies first pre-set temperature of corresponding wind level in different wind levels below the medium-speed wind level; increasing the angle of a wind guide plate, and / or rotating speed of an inner fan of the air conditioner when the first temperature difference is smaller than or equal to the first pre-set temperature and when the angle of the wind guide plate is the pre-set minimum value, and therefore the air conditioner is in the pre-set condensation prevention mode. The technical scheme provided by the control method and device for condensation prevention of the air conditioner and the air conditioner has following beneficial effects: defects in the prior art such as the proneness of generating condensation, bad environmental health and poor users' experience are solved; condensation is not easily generated; the environmental health is good; and users' experience is good.

Provided is an air conditioner, which is constituted such that a plurality of left and right blades disposed at the blowout ports of an indoor equipment can be controlled independently for a plurality of blocks, and such that the area to be air-conditioned is divided into a plurality of areas by a plurality of human body sensors, and which is equipped with a control device for controlling the left and right blades independently for the individual blocks in accordance with the reaction results of the human body sensors. On the basis of at least one of the area characteristics indicating the frequency, which is decided by accumulating the reaction results of the human body sensors a predetermined number of times and which indicates the presence of a person in each of the areas, the personalactivity in the personal presence area, and the adjacency of the personal absence area to the personal presence area, the control device can control the left and right blades thereby to change the opening ratio of the blowout ports to the plural areas.

The invention discloses a hybrid power car braking coordinated control system and a control method thereof, aiming at overcoming the problem that regenerative braking moment and hydraulic braking moment of a hybrid power car in the prior art can not be controlled in a cooperative way. The system comprises an electronic braking maneuver subsystem, a coordinating controller (29), a hydraulic braking moment regulating subsystem and a regenerative braking moment subsystem; wherein, the coordinating controller (29) is respectively and electrically connected with the electronic braking maneuver subsystem, the hydraulic braking moment regulating subsystem and the regenerative braking moment subsystem. The coordinating controller (29) comprises a power control circuit (63), a memory (64), a coordinating controller slot (65), a sensor input signal processing circuit (67), a CAN signal processing circuit (68) and a central processing unit (CPU) (69) which is connected with all the parts by adopting a circuit connecting line (70). The invention also provides a method for coordinating and controlling the regenerative braking moment and the hydraulic braking moment.

The invention discloses a hydraulic electricity generation shock absorber of a vehicle, belonging to the technical field of vehicle suspension systems and hydraulic transmission. The hydraulic power generation shock absorber of the vehicle generates electricity by utilizing pressure generated by hydraulic oil during shock absorption and comprises a piston shock absorption part, a valve path part and an electricity generation part, wherein the piston shock absorption part comprises a hydraulic cylinder (1) and a piston (2); the electricity generation part comprises a hydraulic motor (13) and an electric generator (16); and the piston (2) is pushed to move up and down in the hydraulic cylinder (1) during the shock absorption of the vehicle so that the hydraulic oil inside the hydraulic cylinder (1) is extruded out of the outlet of an upper cavity or a lower cavity of the hydraulic cylinder (1) and passes through the valve path part and then pushes the hydraulic motor (13) to drive the electric generator (16) to generate the electricity. The invention makes the hydraulic shock absorber of the vehicle possible have both stable shock absorption and electricity generation performance by adopting a reliable and mature hydraulic transmission technology and also provides a new research direction for the developed hydraulic shock absorber.

The invention provides an intelligent shoe system. A plurality of new functions and intelligent applications are added to common shoes / shoe type materials through combination of an intelligent module and the common shoe type materials; and use experience of the shoes / shoe type materials is improved. Particularly through practical research on an intelligent information system and a wireless communication system, the intelligent shoe system solves the main problems that the common shoe type materials cannot realize remote and close-range wireless intelligent information management function. By using the intelligent shoe system, a user can know the information such as the working state, the working environment and the position of the intelligent shoes remotely and in real time, so that the user can share the position at any time, monitor the shoe using environment in real time or know whether a person who wear the intelligent shoes encounters danger. The invention also provides a set of efficient intelligent shoe system realization method and a connection application method.

An intelligent control method for platform screen doors is provided, which belongs to the field of automatic control technology. In the method, firstly the images of platform in train pull-in and pull-off states are collected by a CMOS camera and then outputted to a signal processor, the signal processor extracts feature information of the images and produces two basic templates and simultaneously establishes equations and indices for determining image threshold grey level of field image and basic template and error and correlation therebetween; then the filed images are collected by the CMOS camera and outputted to the signal processor, the signal processor processes and identifies the filed images and then produces an accurate control command and outputs the command to a controller; and finally the controller converts the received digital control command to an analog control command and the outputs to a driver, and the driver drives a servomechanism of the screen door after the amplification of the analog control command. The invention has high operational reliability and high identification accuracy, and can ensure the comfort and safety of pick-up and drop-off for passengers.

The invention belongs to the technical field of a path planning for unmanned vehicles, and especially relates to a dynamic trajectory planning method for an unmanned vehicle based on local optimum. The method is characterized by, according to different positions and corresponding different operating conditions of obstacle vehicles on the road, selecting an optimal reference trajectory and carryingout dynamic trajectory planning; analyzing unmanned vehicle lane change intention generation and lane change executable conditions, and according to the prediction of the position and speed of surrounding obstacle vehicles, carrying out fitting to obtain a locally optimal lane change trajectory at the initial moment when obstacle avoidance lane change is decided, and serving the optimal trajectory as a local reference trajectory; and generating a trajectory cluster that can be driven by the unmanned vehicles and combining designed velocity distance and cost functions with a loss function, andselecting an optimal trajectory from the trajectory cluster through nonlinear model predictive control. The method can realize obstacle avoidance, lane change and overtaking in various complex conditions, and also takes into account the comfort of passengers in the unmanned vehicles and road driving efficiency and the like.

The invention discloses an air conditioner control method and system. The method includes the following steps that a mobile terminal obtains weather information through a network; the mobile terminal adjusts the preset distance according to the weather information; the mobile terminal sends a control instruction to an air conditioner so as to control the air conditioner to run according to the preset running state when the distance between the mobile terminal and the air conditioner is smaller than or equal to the preset distance. According to the method and system, the preset distance for turning on the air conditioner is adjusted in real time according to the specific weather and climatic conditions, the position of the mobile terminal is detected in real time through a positioning module of the mobile terminal, and the mobile terminal sends the control instruction to the air conditioner so as to control the air conditioner to run according to the preset running state when the distance is smaller than or equal to the preset distance. Resource waste is reduced while comfort is ensured, a one-click unified setting mode is adopted for control over the air conditioner, and control is easy, convenient and rapid.

The invention discloses a wearable shoulder joint rehabilitation training device. The device has the characteristics of exercise flexibility, wearing comfort and training safety. The device is composed of a movement mechanism and a support adjustment mechanism. The support adjustment mechanism is used to adjust the position of the movement mechanism relative to the shoulder joint of the human body, and fix the entire rehabilitation training device at an appropriate position on the back of the human body. The driver of the motion mechanism is four pneumatic muscles in a vertical motion state, which can respectively control the two groups of movements of the upper arm around the shoulder joint, flexion and extension, abduction and adduction, and the compound movement of these two groups of movements. With the cooperation of the angular displacement and the tension sensor, the active and passive coordinated movement of the movement mechanism and the upper arm can also be realized. The movement mechanism drives the upper arm movement with the help of two sliders for passive movement, which overcomes the problem of upper limb movement difficulties caused by the misalignment between the movement center of the mechanism and the shoulder joint, and ensures the comfort and safety of the training during rehabilitation training .

The invention discloses an electrochemical air conditioning system. The electrochemical air conditioning system comprises an electrochemical hydrogen pump (1), a first metal hydride heat exchanger (2), a second metal hydride heat exchanger (3), a first fan (4) and a second fan (5), wherein the first metal hydride heat exchanger (2) is connected with a first electrode of the electrochemical hydrogen pump (1), and the second metal hydride heat exchanger (3) is connected with a second electrode of the electrochemical hydrogen pump (1). The electrochemical air conditioning system further comprises a first air opening communicating with the outdoor space and a second air opening communicating with the indoor space. The first metal hydride heat exchanger (2) is arranged between an air inlet of the first fan (4) and the first air opening, and the second metal hydride heat exchanger (3) is arranged between an air inlet of the second fan (5) and the second air opening. Air outlets of the first fan (4) and the second fan (5) both can selectively communicate with the indoor space and the outdoor space. The electrochemical air conditioning system saves energy, is environmentally friendly and is low in cost.

The invention discloses a head mounted display which comprises a main frame, a perspective type optical display system, a main control system and a binocular three-dimensional visual system. The perspective type optical display system comprises an image display module, an optical amplification system and a fine adjusting mechanism. The binocular three-dimensional visual system shoots a target object in front of the human eyes and acquires the distance between the target object and the human eyes through a parallax principle distance measuring method. The main control system controls the perspective type optical display system to automatically adjust the distance from the virtual image to the human eyes according to the obtained distance from the target object to the human eyes, therefore, the comfortableness of eye using when a user uses image displayers is ensured, and eyestrain can be relieved. Further, in the augmented reality application, when the depth of field changes, the distance between the virtual image and the human eyes is adjusted automatically to enable the virtual image to fit with the actual environment, the enhanced display effect can be truly achieved, and user experience can be enhanced greatly.

The car air-conditioner refrigerant flow control system adopts the electronic expansion valve as refrigerant flow regulating mechanism. The inlet and outlet of the evaporator are equipped with temp. sensors for respectively measuring the temp. of inlet and outlet of evaporator, and the sum of the difference of both two temp. and correction value of overheating degree of the pressure drop in the evaporator can be used as actual overheating degree of evaporator, and the deviation of the actual overheating degree and set overheating degree can be used as overheating degree feedback signal of theevaporator and fed into the controller, at the same time the rotating speed of the compressor as feedforward signal also can be fed into the controller.

The invention belongs to the technical field of air conditioners, and aims at solving the problems that when an existing air conditioner conducts defrosting, the optimal defrosting mode cannot be selected according to the outside temperature condition and the thickness of a frost layer on an air conditioner outdoor unit. Accordingly, the invention provides an air conditioner and a defrosting control method thereof. The method comprises the following steps that the outdoor environment temperature and the first preset temperature are compared; if the outdoor environment temperature is larger than or equal to the first preset temperature, the air conditioner is controlled for bypass defrosting; if the outdoor environment temperature is smaller than the first preset temperature, whether the thickness of the frost layer on the air conditioner outdoor unit meets the preset condition or not is judged; if the thickness of the frost layer meets the preset condition, the air conditioner is controlled for bypass defrosting; and if the thickness of the frost layer does not meet the preset condition, the air conditioner is controlled for refrigerating defrosting. By means of the air conditioner and the defrosting control method thereof, the optimal defrosting mode can be adopted under the situation that the outdoor environment temperature is high or low or the frost layer on the air conditioner outdoor unit is relatively thick or thin, the comfort of the indoor environment is guaranteed, and the air conditioner heating effect is improved.

The invention provides a sliding energy recycling method, device and system, and relates to the technical field of vehicles. The method comprises the steps of obtaining driving parameters and slope signals of a current vehicle, wherein the driving parameters comprise vehicle speeds, gears and brake pedal signals; according to the driving parameters, calculating initial recycling torque at the current vehicle speed; correcting the initial recycling torque according to the slope signals to obtain target recycling torque; sending the target recycling torque to a motor to trigger the motor to recycle energy. According to the sliding energy recycling method, device and system, in the process of energy recycling, the initial recycling torque can be corrected according to road signals, and the problems are solved that an accelerator is frequently pedaled when the vehicle deceleration is too high in the upslope process of the vehicle or a brake is frequently pedaled when the vehicle deceleration is too low in the downslope process; the method helps to guarantee the driving comfort of the vehicle.

The invention discloses an air conditioner temperature and humidity double-control method. When an air conditioner is switched to a temperature and humidity double-control mode, current indoor temperature and current indoor humidity are detected, and current indoor moisture content is obtained. If the current indoor moisture content meets a preset moisture keeping condition, the coil temperature of a current indoor heat exchanger and the dew point temperature corresponding to a current indoor environment are obtained. The operating frequency of the compressor of the air conditioner is reduced to enable the coil temperature of the current indoor heat exchanger to be higher than the dew point temperature corresponding to the current indoor environment. When the coil temperature of the current indoor heat exchanger is higher than the dew point temperature, current parameters of the air conditioner are kept to perform operation for first preset time. The invention further discloses an air conditioner temperature and humidity double-control device and an air conditioner indoor unit. The indoor humidity is always within a human comfort temperature range corresponding to the indoor temperature in the refrigeration process of the air conditioner, and comfort degree of human is kept.

The invention discloses an automatic driving overtaking decision-making method based on reinforcement learning under opposite double lanes. The method comprises the following steps of collecting the traffic state of an automatic driving vehicle through a sensor; inputting the collected traffic state into a trained decision model; enabling the decision model to select a corresponding driving actioninstruction from the action space according to the input information and output the driving action instruction, and driving the vehicle automatically to form a new traffic state after the driving action; calculating a reward value of the driving action through a reward function, and storing the original traffic state, the driving action, the reward value and the new traffic state into an experience playback pool as transfer samples; calculating a loss function value of the decision model, and optimizing parameters of the decision model according to the transfer sample and the loss function value; and repeating the steps until the automatic driving is finished. The safety and comfort of the overtaking decision-making process of the automatic driving vehicle are ensured, and the humanization and robustness of decision-making are improved through a reinforcement learning decision-making method.

The invention discloses a variable-frequency air conditioner control method and an air conditioner. The variable-frequency air conditioner control method comprises the steps: entering a user setting mode in response to a user operation instruction; acquiring a running frequency, which is set by a user, of an air conditioner compressor; controlling the air conditioner compressor to run at the set running frequency. Furthermore, the user can also set different running time periods of a variable-frequency air conditioner compressor and the running time lengths and the running frequencies of all the time periods; in each running time period set by the user, the air conditioner compressor is controlled to run at the set running time length and the running frequency; moreover, a difference value between the set temperature ts and the indoor temperature t1 can be judged in any time period after the air conditioner compressor runs according to the preset time length or a default time length, and frequency rising and frequency falling are determined according to the difference value or the current frequency is kept until the period is ended; the comfortableness of the air conditioner is guaranteed, and energy conservation of the air conditioner can be realized; more different demands of the user are met.

The invention discloses an air conditioner control method and an air conditioner. The air conditioner control method comprises the following steps of receiving a first preset command; when the first preset command is received, obtaining current indoor temperature and air supply temperature; comparing the indoor temperature with the air supply temperature; and when the absolute value of the temperature difference between the indoor temperature and the air supply temperature is larger than or equal to a first preset temperature difference, controlling a transverse air guide part of the air conditioner to rotate to a first preset angle directly and controlling a longitudinal air guide part of the air conditioner to rotate to a second preset angle directly. By means of the technical scheme, supplied air of the air conditioner can be simply and conveniently prevented from directly blowing to a human body, and the comfort degree of the air conditioner is improved.

The invention discloses a vehicle rear-end collision preventing system and method based on road surface conditions. The system comprises a driving information obtaining device, a safe state judgment device, a touch alarm device, an autonomous brake output device and a data information storage unit. The driving information obtaining device comprises a distance measuring sensor, a wheel speed sensor and an in-tire sensor and is used for sensing vehicle motion information and the road surface attachment state; the safe state judgment device is used for selecting target deceleration through driver characteristics based on the different road surface conditions, inputting the target deceleration into a safe distance module, and comparing the vehicle relative distance with the current relative distance to determine the real-time operating safe state of a vehicle; the touch alarm device comprises a touch sensor installed on the surface of a driver seat and a touch sensor installed on an accelerator pedal. Road information and vehicle information can be obtained through the multiple sensors, an alarm is given or autonomous brake measures are taken in time according to the safe state of the current vehicle, vehicle rear-end collision can be effectively avoided, and road potential safety hazards are reduced.

The invention discloses a six-legged stair climbing wheelchair which belongs to the field of elder and disabled assisting service robots. The six-legged stair climbing wheelchair comprises a wheelchair, three front side legs, three back side legs and a power supply controller box, wherein the power supply control box is arranged below a seat of the wheelchair and a power supply and a controller are arranged therein; the three front side legs are linearly and uniformly arranged at the front side where the power supply control box is close to the wheelchair, and respectively comprise a hip joint, a thigh, a knee joint, a shank, an ankle joint and a foot part, and the thigh and the shank comprise telescopic joints realized by ball screw nut mechanisms; and the three back side legs are linearly and uniformly arranged at the back side where the power supply control box is close to the wheelchair, and respectively comprise a hip joint, a thigh, a knee joint, a shank, an ankle joint and a foot part. Through the six-legged stair climbing wheelchair, the seat of the wheelchair is always in a horizontal state in the whole stair climbing process, so that the sitting comfort and safety of the passengers are ensured and walking on rough roads can be realized conveniently.

The invention relates to a realization method based on the CPCI bus technology of the dual module hot spare system switching. The realization method is characterized by comprising the following steps: 1) the cabs at the head and tail of a train are separately provided with an ATP and two ATOs, the ATP adopts 2-out-of-3 architecture, the same ATOs (ATO1, ATO2) are hot spares to each other; 2) when the train runs normally, only the ATPs and ATO of the front head cab in the advancing direction work, the tail cab is powered off; when the train enters a turning section, a driver in the head cab of the original advancing direction presses an AR button on the driving platform to power on the ATPs and ATO of the tail cab; the ATPs and ATO of the head cab and the ATPs and ATO of the tail cab exchange information, the driving privilege is exchanged according to the driving direction so that the original tail cab is reversed to become the head cab, the ATPs and ATO of the original head cab are powered off; and 3) the redundancy automatic switching of one ATO adopts the dual module hot spare mode. The system of the invention has simple hardware configuration, lower system cost and abundant interfaces and is convenient to test and debug.

The invention relates to medical beds and provides a multifunctional nursing bed. The multifunctional nursing bed comprises a bed frame and a bed board which is arranged on the bed frame; the bed frame is provided with a cleaning device, a turning device and a sit up device; the cleaning device is used for cleaning urine and feces of a patient; the turning device is used for driving the patient to automatically turn over the sit up device is used for driving the patient to automatically sit up; a position of the bed board, which is close to the middle, is provided with a urine and feces hole; a defecation box is arranged under the urine and feces hole; a cleaning assembly comprises a switch door which is used for sensing the automatic opening and closing of the urine and feces hole after the defecation of the patient and supporting the patient; the bed board comprises a first board area, a second board area and a third board area; the back, the hip and legs of the patient are located on the first board area, the second board area and the third board area in turn respectively; the urine and feces hole is formed in the second board. According to the multifunctional nursing bed, the cleaning device, the turning device and the sit up device are added to the bed frame and accordingly the cleaning of the patient after the defecation is ensured and meanwhile bedsores caused by automatic turning can be reduced and the extrusion feeling and the body displacement in the sit up process can be eliminated due to the sit up device.