176results about How to "Affect comfort" patented technology

Provided is a wall-mounted fresh air processor. The wall-mounted fresh air processor comprises a fresh air processor box body, a fresh air controller, an air inlet pipe, an air inlet, an air inlet fan, a fresh air purification device, a heat exchanger, a fresh air supply opening, an air return opening, a return air filter, an exhaust fan, an exhaust outlet and an air exhaust pipe. The wall-mounted fresh air processor is characterized in that besides the fresh air supply opening, an adjacent room fresh air supply pipe can be further arranged, the air inlet pipe, the air inlet, the air inlet fan, the fresh air purification device, the heat exchanger, the fresh air supply opening and the adjacent room fresh air supply pipe are connected in sequence to form a fresh air duct, and the air return opening, the return air filter, the heat exchanger, the exhaust fan, the exhaust outlet and the air exhaust pipe are connected in sequence to form a return air duct. According to the wall-mounted fresh air processor, outdoor air is purified to form fresh air, the fresh air is conveyed to one room, the fresh air flows to the other room, and is mixed with polluted air, and finally the mixed air is exhausted through the wall-mounted fresh air processor; due to the fact that the same wall-mounted fresh air processor is shared by the two rooms, the wall-mounted fresh air processor is made full use of, and the user cost is reduced.

The invention relates to a control method and system for preventing the frequency fluctuation of an air conditioner compressor, which detects the coil temperature T of the indoor unit in real time during the heating operation of the air conditioner k ;If T is detected n consecutive times K = T 防高温降频 , and T K = T 防高温降频 cumulative time t 1 ≥t 设定 ;Reduce the target frequency of the compressor by F. When the present invention detects that the temperature of the coil of the indoor unit fluctuates frequently, the target frequency of the compressor in the anti-high temperature protection is lowered and corrected successively until the compressor can run stably at the target frequency to ensure the use effect of the air conditioner.

The invention provides a control method of an electric automobile. The control method comprises the following steps: obtaining the current speed and the gear state of the automobile when an accelerator pedal and a brake pedal of the automobile are not depressed; when the current speed is smaller than a preset speed, and the gear state is a forward or reverse gear state, obtaining a proportion coefficient and an integral coefficient according to the characteristics of the automobile, and obtaining a speed difference between a target speed and the current speed; obtaining a proportion correcting coefficient according to the gear state, and obtaining an integral correcting coefficient according to the gear state and the speed difference; obtaining a final proportion coefficient according to the proportion coefficient and the proportion correcting coefficient, and obtaining a final integral coefficient according to the integral coefficient and the integral correcting coefficient; and performing PI control on the driving torque according to the speed difference, the final integral coefficient and the final integral coefficient so as to enable the current speed of the automobile to approach to the target speed. Through the adoption of the control method disclosed by the embodiment of the invention, the driving comfort of a driver can be improved, and the automobile can be prevented from sliding down a slope to a certain degree. The invention further provides the electric automobile.

The invention discloses an ACC / AEB system based on human-imitating driving. The system comprises an environment sensing module, a data fusion module, a decision control module, a human-imitating driving module and an execution module. By means of the technical scheme, an enhanced neural network is utilized, the learning of driving behavior parameters of a driver can be achieved in the driving process, the driving behavior parameters are compared with the parameters obtained through the calculation of the decision control module and corrected, the situation that in the decision control process,acceleration, deceleration, braking force, acceleration rate and deceleration rate are over high or over low, and accordingly the comfort and the safety of the driving are affected is avoided, so that the ACC / AEB system is more suitable for the driving characteristics of the driver, the drive is made to have the same feeling as his / her own driving, the human-imitating driving in the ACC / AEB process is achieved, and the system better meets the driving requirements of the driver.

The invention provides a wind guiding device, a wind guiding control method and an air conditioner. The wind guiding device comprises a wind channel component and a wind door component, wherein the wind channel component is arranged inside a housing; the wind door component is mounted on the housing and comprises at least one wind-feeling-free wind discharging plate and at least one cylindrical rotating door which cover two middle wind outlets and two side wind outlets; a plurality of through holes are formed in the at least one wind-feeling-free wind discharging plate; a ventilation channel is formed in the at least one cylindrical rotating door. According to the wind guiding device, the wind generated by operation of wind wheels is blown to the user through the through holes of the wind-feeling-free wind discharging plate, so that the discharged wind is gentle; the wind-feeling-free wind discharging plates and the cylindrical rotating doors can open both middle wind outlets and / or both side wind outlet to be matched with each other; the wind-feeling-free wind discharging and the conventional wind discharging can be carried out at the same time, so that rapid cooling or heating can be achieved; the usage comfort level of the user can be ensured; meanwhile, the ventilation channel communicates with the inside and the outside of the housing through different positions so as to change the wind discharging directions of the wind outlets; the usage experience of the user can be improved.

The invention provides an air-conditioning load reduction method based on temperature adjustment means and SOC parameter modeling. The method comprises the following steps that S1) an air conditioningload-room temperature basic model is established; S2) an air conditioner is virtualized into an energy storage component, a concept of SOC parameter is introduced, and a charge parameter energy-storage model of the air conditioning component based on the SOC parameter is established; S3) an air-conditioning load reduction model based on the temperature adjustment means and SOC parameter modelingis established; and S4) when there is capacity lack in the power grid in summer, an air conditioning load which is expected to be reduced is input to the air-conditioning load reduction model, and indoor temperature upper / lower limit, load reduction lasting time and advanced cooling time prescribed by air-conditioning load reduction control are determined, and the maximal value that can be reducedof the air conditioning load is calculated. Thus, the power grid load can be reduced without influencing the comfortableness of users.

A somatic sense temperature control air conditioning system comprises an air conditioner and a somatic sense control device. A microprocessor, a power source switch, an input device, a display module, a camera and an infrared temperature measuring device are installed in the somatic sense control device, the power source switch, the input device, the display module, the camera and the infrared temperature measuring device are connected with the microprocessor and the microprocessor is connected with the air conditioner through a communication wire. The somatic sense temperature control air conditioning system can automatically detect whether people exist in a room or not so as to control the air conditioner to work or not to work, therefore, electricity is saved and the use cost is lowered. In addition, the air conditioner can be adjusted automatically according to the current body temperature of a user to set temperature, the problems that the comfort level of the user is affected and the user catches a cold due to the fact that the temperature is set to be too high or too low by the user are avoided, and the health of the user is guaranteed.

The invention discloses an air conditioner fault diagnosis method. The air conditioner fault diagnosis method is timely in fault diagnosis, simple, convenient to use, practical, and reliable. The air conditioner fault diagnosis method based on a theoretical model includes the steps that the theoretical model of an air conditioner room temperature change curve is established, the theoretical model and an air conditioner actual operation room temperature change curve are compared, whether the performance of an air conditioner is reduced or not is judged according to the comparative difference result, and then faults of the air conditioner are diagnosed.

The invention provides an air conditioner control method and control system, an air conditioner, computer equipment, a computer readable storage medium and a terminal. The air conditioner control method comprises the steps of receiving a dehumidifying instruction, obtaining a current environmental temperature value T1 and a current environmental humidity value phi1 of at least one indoor unit at respective positions, averaging the obtained current environmental temperature values T1 and the obtained current environmental humidity values phi1 separately to obtain a first average environmental temperature value average T1 and a first average environmental humidity value average phi1, and comparing the first average environmental temperature value average T1 and the first average environmental humidity value average phi1 with a preset environmental temperature value T0 and a preset environmental humidity value phi0 separately so as to determine an operating working mode of at least one indoor unit and control the air conditioner to execute corresponding operation according to the working mode. According to the air conditioner control method, a good dehumidifying effect and comfortable temperature are guaranteed, the comfort level of a user is improved, and the usage experience of the user is improved.

The invention discloses an electric-pneumatic composite braking control method for a train. The train is divided into a plurality of bullet train trailer units, and electric-pneumatic composite braking is performed in each bullet train trailer unit; a traction control unit and a brake control unit are arranged on the bullet train trailer unit; the control method comprises the following steps thatS1, the traction control unit and the brake control unit receive a brake instruction and a brake level signal; S2, the traction control unit calculates an electric braking force theoretical value Fe0and executes electric braking force; the brake control unit calculates the unit brake requirement Fu, the bullet train brake requirement Fd and the trailer brake requirement Ft; S3, the traction control unit determines an electric braking force feedback value Fe, and sends the electric braking force feedback value Fe and an electric braking effective signal to the brake control unit; S4, the brakecontrol unit calculates the air brake supplementing amount of the bullet train and the trailer and executes air brake; signal delay is effectively reduced, the real-time performance of electric-pneumatic composite braking is enhanced, and the response speed of electric-pneumatic braking is increased.

The invention discloses an automobile control method and device, a storage medium and an automobile. The method includes the following steps that before an automobile drives to a road ahead, an air hanger bracket of the automobile is pre-adjusted according to the recorded road grade information and / or the recorded air hanger bracket parameter of the road ahead; when the automobile drives on the road, the air hanger bracket is dynamically adjusted according to sensor data of the air hanger bracket. According to the technical scheme, the problems can be solved that the comfort level of passengers and the safety of automobile operation are affected by delay of adjustment of the air hanger bracket in the course of driving, and the comfort level of the passengers and the operation safety are improved.

The invention discloses a charging method and a charging device. The method comprises the following steps: obtaining the temperature T of a battery; setting the maximum temperature Ts to be equal to a second critical temperature Tm when the temperature T is smaller than or equal to a first critical temperature Tn; judging whether a terminal is at a using condition when the temperature T is greater than the first critical temperature Tn; setting the maximum temperature Ts to be equal to the first critical temperature Tn when the terminal is at the using condition; setting the maximum temperature Ts to be equal to the second critical temperature Tm when the terminal is not at the using condition; reducing the charging current when T is greater than Ts; and increasing the charging current when T is smaller than Ts-K, wherein Tn is smaller than Tm, and K is a preset constant. Thus, the charging current is correspondingly controlled according to battery problems and using conditions when the terminal is charged, the charging current is appropriately increased when the terminal is not used by a user so as to improve the charging speed, and the charging current is appropriately reduced when the terminal is used by the user so as to prevent the terminal from being overheated to influence the using comfort of the user, so that the charging speed and the comfort degree of the user using the terminal are both taken into account.

The invention discloses a control method of a radiation air conditioner, the radiation air conditioner, and a storage medium. The control method comprises the steps of detecting the current operationmode of the radiation air conditioner when receiving a halt instruction; when the current operation mode is refrigeration or dehumidification, reducing the operation frequency of the radiation air conditioner, and controlling the radiation air conditioner to switch to the heating operation mode after first preset time; and regulating the heating operation frequency of the radiation air conditioner, and controlling the radiation air conditioner to stop after second preset time. According to the control method, dew on the surface of an evaporator is dried, the situation that air outlet quality and the comfort level of the air conditioner are affected due to the fact that mould breeds in the dew of the surface of the evaporator and odors are generated after halt are avoided, and cleanliness and the comfort level of the radiation air conditioner are improved.

The invention discloses an air conditioner indoor unit which comprises an indoor unit bottom plate (1) and an air conditioner middle frame arranged on the indoor unit bottom plate (1). A left end plate (1101) and a right end plate (1102) are arranged on the indoor unit bottom plate (1). The air conditioner indoor unit further comprises a first hollow structure (1501) and a knocking-off plate (18) detachably installed on the first hollow structure (1501). The air conditioner middle frame comprises an upper middle frame body (1001), a lower middle frame body (1002) detachably connected with the upper middle frame body (1001), a second hollow structure (1502) and a middle frame electric control box cover plate (16), wherein the second hollow structure (1502) is arranged on the lower middle frame body (1002), the second hollow structure (1502) and an electric control box (14) on the indoor unit bottom plate (1) are oppositely arranged inside and outside, and the middle frame electric control box cover plate (16) is arranged on the lower middle frame body (1002). The air conditioner indoor unit has the beneficial effects that demounting of the indoor unit is better simplified, parts in the electric control box are convenient to maintain, and the air conditioner indoor unit is protected.

The invention relates to capparis spinosa fruit gel ointment, a production method thereof, and application thereof to antirheumatic medicaments. The capparis spinosa fruit gel ointment comprises a backing layer, a medicament-containing ointment body and a covering layer protective film, wherein the medicament-containing ointment body is prepared from the following raw materials: a medicinal part of the capparis spinosa and a medicinal excipient; a covering material of the covering layer protective film is one of release paper, a plastic film, a polyester, an aluminum foil-polyethylene composite film and hard gauze; and a backing material of the backing layer is one of cotton cloth, non-woven fabric and chemical fiber cloth. The apparis spinosa fruit gel ointment provided by the invention substitutes the apparis spinosa fruit serving as a medicament for the traditional root bark, so the contradiction between the resource utilization of the apparis spinosa medicinal plants and ecological protection is solved. More importantly, the apparis spinosa fruit gel ointment provided by the invention solves the problems of irritability and hypersensitivity caused by the clinical application of the traditional formulation and administration way of the apparis spinosa, and has the characteristics of long action time, high moisture retention, high air permeability, avoidance of the first pass effect of livers, using comfortableness and high compliance of patients.

The invention discloses an electric water heater and a heating control method. The electric water heater comprises a water tank, a heating device, a first temperature sensor, a second temperature sensor and a controller; the second temperature sensor and the first temperature sensor are correspondingly arranged on two positions, located in an up and down spaced mode, of the water tank, the heating device comprises a first heater, and the controller controls the first heater to work according to the descent speed of the temperature detected by the first temperature sensor. When a user uses water, water is injected into the water tank through a water inlet pipe, and the first temperature sensor located on the lower portion detects the descent of the temperature firstly, so that the controller can control the first heater to be started in time to conduct heating on the water in the water tank, and the situation that due to the fact that the temperature of the water on the lower portion of the water tank is too low and the temperature of the subsequently supplied hot water of the electric water heater is not stable, the use comfort degree of the user is affected is avoided.

The invention discloses an air conditioner system and a control method thereof. The air conditioner system comprises a compressor, a main four-way valve, an auxiliary four-way valve, an indoor heat exchanger, a first throttling device, a second throttling device, a first on-off valve, a second on-off valve and a third on-off valve. According to the air conditioner system, the outdoor heat exchanger can be dismounted into two portions or multiple portions, and through combination of all parts and a pipeline and control over all valves, intermittent heating defrosting and low-load running control can be achieved.

The invention provides a wind guide device, a wind guide control method and an air conditioner. The wind guide device comprises a wind duct assembly and a wind door assembly, wherein the wind duct assembly is arranged in a shell, two wind wheels are mounted in the wind duct assembly, and the wind door assembly is mounted on the shell and comprises at least one sense-of-windless wind outlet plate for covering a wind outlet in the middle and at least one sliding door located at wind outlets in two sides, and at least one sense-of-windless wind outlet plate is provided with multiple through holes. According to the wind guide device, wind generated when the wind wheels operate is blown to users through the through holes in the sense-of-windless wind outlet plates, so that the output wind is gentle; it is avoided that the wind is directly blown to the users through the wind outlets and consequently the users feel uncomfortable, the use comfort of the users is improved, meanwhile the sense-of-windless wind outlet plates and the sliding doors are in cooperation and slide to different positions to open or close the wind outlet in the middle and / or the wind outlets in all the side faces, quick cooling or heating is achieved and the use comfort of the users is guaranteed while sense-of-windless wind output and conventional wind output can be achieved, and the use experience of the users is improved.

The invention provides an air conditioner, a defrosting control method and a defrosting control system. The air conditioner comprises a compressor, an indoor heat exchanger, an outdoor heat exchanger, a four-way valve, a throttling device, a heat accumulating assembly and a stop valve, wherein the heat accumulating assembly is arranged between the four-way valve and the outdoor heat exchanger, comprises a heat accumulator, a water feeding device, an electric heating piece, a first temperature detecting device and a second temperature detecting device; and the stop valve is arranged between the four-way valve and the outdoor heat exchanger, and is connected in parallel with the heat accumulating assembly. According to the air conditioner disclosed by the invention, the heat accumulating assembly enables the air conditioner to perform defrosting under a heating mode, so that the favorable defrosting effect and the favorable heating effect are guaranteed, and the usage comfort of users is improved; when heat accumulating materials are short of water and the defrosting effect is poor, the water can be supplied by the water feeding device, and the four-way valve is switched, so that the air conditioner performs defrosting under a refrigeration mode, and the favorable defrosting effect is guaranteed; and after water supply is completed, the four-way valve is switched, so that the air conditioner performs defrosting under the heating mode, and the usage comfort of the users is improved.

The invention relates to a protection-type gauze mask. The protection-type gauze mask comprises a gauze mask body, ear bands and a breather valve arranged on the gauze mask body, and the gauze mask body comprises a face layer, a bottom layer and a filter layer sandwiched between the face layer and the bottom layer. The protection-type gauze mask has the advantages that when a wearer uses the protection-type gauze mask, the breathing resistance is small, breathing is smoother, and the comfort degree of the wearer is improved.

The invention discloses a suspension type drying room structure. The suspension type drying room structure comprises a three-dimensional frame, wherein the three-dimensional frame is composed of a top plate, a left side plate, a right side plate and a bottom plate, and openings are formed in the front end and the rear end of the three-dimensional frame correspondingly. A conveying structure is arranged on the inner surface of the top plate and comprises driving motors, a circulating conveying chain in the horizontal direction and a plurality of suspension rods, wherein the driving motors are located at the two ends of the circulating conveying chain and fixedly connected with the top plate; and the upper ends of the suspension rods are fixed to the circulating conveying chain at equal intervals, and the suspension rods are driven by the circulating conveying chain to move. A plurality of heating pipes are distributed on the side plates at interval intervals. A plurality of temperature sensors are distributed on the top plate, the side plates and the bottom plate correspondingly. The suspension type drying room structure further comprises a PLC, and the driving motors, the heating pipes and the temperature sensors are all electrically connected with the PLC. The suspension type drying room structure is suitable for suspension drying of big articles or heavyweight products, heat-preservation and heat-insulation effects are good, the constant-temperature state at the temperature of 160-170 DEG C is maintained, and the product drying effect is guaranteed.

The invention provides a wind guide device, a wind guide control method and an air conditioner. The wind guide device comprises a wind channel assembly and a wind door assembly. The wind channel assembly is connected with a wind wheel assembly and arranged in a shell at two wind outlet areas. The wind door assembly is mounted on the shell and comprises multiple wind doors used for opening or closing a middle wind outlet or two side wind outlets. The multiple wind doors comprise at least one folding door and at least one cylindrical rotating door. By means of the wind guide device, wind generated by working of the wind wheel assembly is blown out to the outer environment by different parts of the middle wind outlet or the side wind outlets opened through expansion or contraction of the folding door to different positions, and the middle wind outlet or the side wind outlets can blow out wind in different directions in the wind outlet state; the cylindrical rotating doors rotate so that ventilation channels can be located at different positions to communicate the inner portion of the shell with the outer portion of the shell to open the middle wind outlet or the side wind outlets; the wind outlet direction can be changed; the wind outlet range can be widened; and the use experience of a user can be improved.

The invention provides a hardness-adjustable intelligent double bed mattress capable of avoiding mutual interference. The hardness-adjustable intelligent double bed mattress capable of avoiding mutualinterference comprises a first sleep zone, a second sleep zone, and a transition zone; bearing air bags are arranged in the first sleep zone and the second sleep zone; transition air bags are arranged in the transition zone; a sensor module is used for collecting air pressure values and air pressure change values in the bearing air bags; an air pressure adjusting module is used for changing the air pressure values in the bearing air bags and the transition air bags; an intelligent control module is used for determining the depth of sleep and interference grades of users at the first sleep zone and the second sleep zone, determining the hardness of the first sleep zone and the hardness of the second sleep zone, and sending control commands to the air pressure adjusting module to change theair pressure values in the transition air bags. The hardness-adjustable intelligent double bed mattress is capable of avoiding mutual interference of the two users in sleeping, realizing hardness smooth transition between the first sleep zone and the second sleep zone, and avoiding influences on user comfort level caused by stepped nonuniform change of the hardness at the junction of the first sleep zone and the second sleep zone.

The invention provides a heat accumulation component and an air conditioner. The heat accumulation component comprises a heat accumulator and at least one electric heating element, wherein the heat accumulator is provided with at least one fin and a cavity; the cavity is used for accommodating a heat accumulation material; the at least one electric heating element is arranged on the heat accumulator; the at least one fin is positioned at the periphery of the at least one electric heating element and is perpendicular to a cross section of the at least one electric heating element. According to the heat accumulation component provided by the invention, the condition that the heat accumulation material flows to be dispersed and further is liable to ice due to the parallelism of the fins and the cross sections of the electric heating elements is avoided; meanwhile, the phenomenon that a heat radiating effect is affected by fin deformation due to the fact that the heat accumulation material is iced and then expands is avoided, a refrigerant is effectively enabled to be uniform in heating and is subjected to sufficient heat exchange, further a good and stable defrosting effect and a heating effect are guaranteed, and the use experience of a user is improved; meanwhile, the service life of the fins is prolonged, the integral quality of the heat accumulation component is improved, and the use satisfaction degree of the user is improved.

The invention discloses a checking method for the reflected light of an instrument panel of an automobile on front door glass. The method comprises the steps that an eye ellipse is made; tangents of the eye ellipse are made through a point on the mirror surface of a rearview mirror; front door glass acts as a reflecting surface, and reflection lines of all the tangents are made; and when all the reflection lines are not intersected with an indication surface of the instrument panel or all the reflection lines are not intersected with the indication surface of the instrument panel due to the fact that the reflection lines are blocked by a light blocking part, the reflected light of the instrument panel on front door glass does not influence visual lines of a driver for observing the rearview mirror. The invention also provides a manufacturing method for the automobile and the automobile. The aforementioned checking method is simple and easy to operate, and the reflected light of the instrument panel on front door glass can be checked in the design process of the automobile so that optimization can be timely performed in the design process, the situation that the reflected light of the instrument panel on front door glass influences the visual lines of the driver for observing the rearview mirror of the side at night is prevented, driving comfort degree is facilitated for the driver and driving safety is enhanced.

The invention discloses a medical hydrogen-rich atomization device which comprises a hydrogen generation device, a hydrogen and liquid medicine atomization device, a heating device, a gas dischargingpipeline, a three-way pipe and the like, wherein the hydrogen generation device is prepared from a nano cellulose / polyvinyl alcohol nano outer shell and magnesium particles wrapped therein, and the nano capsule outer shell can make hydrogen be slowly released at a constant speed; the heating device is connected below the hydrogen generation device, and a heating bag is arranged in the heating device; a liquid medicine atomization cabin and a hydrogen atomization cabin are separated by a partition plate, fog of the hydrogen atomization cabin and the liquid medicine atomization cabin is generated by a medical ultrasonic atomizer, and generated mixed fog is conveyed to the three-way pipe by the gas discharging pipeline; after the mixed fog is inhaled by the respiratory tract, an anti-inflammation effect on pharyngitis, amygdalitis and pneumonia can be reinforced; meanwhile, the mixed fog can be applied to facial cosmetics, oxidation resistance and the like.

The invention relates to a phase-change constant-temperature mattress which comprises a surface layer and a constant-temperature mattress layer filled with a microcapsule phase change material. The constant-temperature mattress layer filled with the microcapsule phase change material is formed by injecting the microcapsule phase change material into the mattress layer of the mattress by utilizing the characteristics of constant temperature absorption, capacity of releasing a large amount of energy, small particle size, high heat transfer rate, high stability, high safety and the like in the microcapsule phase change material, so that proper temperature and touch of the mattress can be realized. In addition, the phase-change constant-temperature mattress is high in thermal sensitivity, safe and free of pollution, does not need to be added with energy and is durable to use.

The invention relates to a control method of an air conditioner. The control method is characterized by comprising the following steps that 1, the preset temperature TP in operation parameters of theair conditioner is set; 2, the air conditioner is started to automatically select to operate in a heating function or a refrigerating function; 3, the start indoor temperature Tin0 at the operation start moment of the air conditioner is measured; 4, according to TP and Tin0, the initial automatic control temperature TA of the air conditioner is set, changes of indoor temperature Tin are monitoredin real time, and TA is gradually adjusted according to Tin changes till being equal to TP. By means of the control method of the air conditioner, indoor temperature can be rapidly, stably and automatically adjusted at a uniform speed, and the problem that operation is complex due to secondary adjusting, the problem that the user comfort degree is reduced since temperature is changed too rapidly and the problem that the service life is shortened due to long-time high-frequency operation of an air conditioner compressor are avoided.

The embodiment of the invention provides a room door internal and external temperature difference control method, device and an air conditioner. According to the room door internal and external temperature control method, the indoor environment temperature of a room, the door internal temperature and the door external temperature are obtained, the room door internal and external temperature difference is calculated according to the room door internal temperature and the room door external temperature of the room, and the air outlet angle and the air outlet speed of the air conditioner are controlled according to the room door internal and external temperature difference and the position of the air conditioner relative to a room door, so that the room door internal and external are made toform gradient temperature difference, a comfortable temperature simple and convenient environment is provided, sudden cold and sudden hot are prevented from appearing to affect comfortable sensation of people, and the use experience of the people can be greatly improved.

The invention discloses a roller of a testing device of a motor vehicle. The roller structurally comprises a vibration sensor, a flywheel group, a driving roller, a lifting device, a driven roller, abody, an eddy current dynamometer, a gearbox, a speed sensor, and a coupling device, wherein the vibration sensor, the flywheel group, and the driving roller are installed behind the lifting device and are in mechanical connection, the body is internally provided with the eddy current dynamometer and is connected with the eddy current dynamometer by a bolt, a driven roller is arranged in front ofthe lifting device and is movably connected with the lifting device, and the dynamometer is fixedly arranged on the left side of the gearbox and is connected with the gearbox by a bolt. The vibrationtransducer disclosed by the invention is provided with wires, coils, housings, magnetic steel and elastic reeds and can be used for achieving the effect that an improved chassis dynamometer in the prior art is additionally provided with the vibration sensor for data testing of running shaking of a car, so as to avoid faults and car shaking from affecting the comfort of drivers driving at a high speed.