Intelligent air conditioner control method and system based on passenger comfort

Abstract

The invention relates to the technical field of automobile intelligent control, in particular to an air conditioner intelligent control method and system based on passenger comfort. Acquiring the distribution condition of passengers in the vehicle, and collecting passenger body temperature information and passenger feature information; passenger comfort temperature is obtained based on the passenger feature information; comparing the body temperature of the passenger with the comfortable temperature of the passenger; and the vehicle-mounted air conditioner is controlled according to the comparison result until the body temperature of the passenger conforms to the comfort temperature of the passenger. The air conditioner control method is simple and efficient, the sensitivity and the demand degree of human bodies of different passengers to the temperature can be accurately recognized, and the temperature of each passenger can be adjusted according to the riding positions of the different passengers so as to meet the comfort requirement of the passengers; and the energy consumption of the air conditioning system can be reasonably controlled according to different passenger requirements and the number of passengers, unnecessary energy consumption is reduced, the endurance mileage of the whole vehicle is increased, and the experience feeling of the passengers is improved.

Description

Technical Field

[0001] The present application relates to the field of automobile intelligent control technology, and specifically refers to an air-conditioning intelligent control method and control system based on passenger comfort. Background Art

[0002] With the advancement of science and technology, the relevant control technologies in the automotive industry are also developing in the direction of intelligence and integration. With the development of automotive technology, passengers' requirements for in-car comfort are also increasing. Especially in today's era of rapid development of intelligence, the improvement of passengers' intelligent experience has also become an important technical indicator for the development of current automotive technology. Among them, the requirements for cabin air conditioning comfort also need to further improve the user experience. At present, in-car air conditioning is mainly divided into three categories: manual air conditioning, electric air conditioning and automatic air conditioning. In terms of intelligence, only the automatic air conditioning level can automatically control the air volume and temperature in the car through the ambient temperature, sunshine intensity, in-car temperature, humidity, etc., to provide passengers with a good riding environment. However, automatic air conditioning control usually adjusts the temperature of the entire car cabin, and the closed-loop control of the cabin is relatively simple, only outputting temperature and a certain humidity control. This causes passengers to feel hot or cold after the air conditioner is turned on, and the human body comfort is poor. In this way, the comfort control of passengers cannot comprehensively consider other comfort factors for precise control. Secondly, this rough automatic air-conditioning adjustment will generate a lot of energy waste, resulting in a reduction in the range of new energy vehicles, while reducing the user's experience of the entire vehicle. Summary of the invention

[0003] The purpose of this application is to address the deficiencies of the above-mentioned background technology and to provide an air-conditioning intelligent control method and control system based on passenger comfort.

[0004] The technical solution of the present application is: an intelligent air conditioning control method based on passenger comfort, comprising:

[0005] Obtain the distribution of passengers in the car, collect passenger body temperature information and passenger characteristic information;

[0006] Obtaining passenger comfort temperature based on passenger characteristic information;

[0007] Compare passenger body temperature to passenger comfort temperature;

[0008] The vehicle air conditioner is controlled according to the comparison results until the passenger body temperature matches the passenger comfort temperature.

[0009] According to an air conditioning intelligent control method based on passenger comfort provided by the present application, the method for obtaining the passenger comfort temperature based on passenger characteristic information includes: obtaining the current season and obtaining the basic temperature corresponding to the current season; collecting the passenger's height, weight, gender and clothing information, and obtaining the height weight, weight weight, gender weight and clothing weight corresponding to the passenger; and weighting the height weight, weight weight, gender weight and clothing weight on the basic temperature to obtain the corresponding passenger comfort temperature.

[0010] According to an intelligent air conditioning control method based on passenger comfort provided in the present application, the method of comparing the passenger body temperature with the passenger comfort temperature includes: comparing the head temperature, foot temperature and hip temperature in the passenger body temperature with the passenger comfort temperature.

[0011] According to an intelligent air-conditioning control method based on passenger comfort provided by the present application, the method for controlling the vehicle air-conditioning according to the comparison results includes: comparing the head temperature and hip temperature of the passenger's body temperature with the passenger comfort temperature; if the difference between the head temperature and hip temperature and the passenger comfort temperature is greater than or equal to a first set value, the air-conditioning is controlled to a cooling mode; if the difference between the passenger comfort temperature and the foot temperature and hip temperature is greater than or equal to a second set value, the air-conditioning is controlled to a heating mode.

[0012] According to an intelligent air-conditioning control method based on passenger comfort provided by the present application, if the difference between the head temperature and the hip temperature and the passenger comfort temperature is greater than or equal to a first set value and less than a third set value, the air-conditioning is controlled to be in a first-level cooling mode, the wind direction of the air-conditioning is adjusted to a natural wind direction, and the seat ventilation is closed; if the difference between the head temperature and the hip temperature and the passenger comfort temperature is greater than or equal to a third set value, the air-conditioning is controlled to be in a second-level cooling mode, the wind direction of the air-conditioning is adjusted to blow towards the passenger's head, and the seat ventilation is turned on; the third set value is greater than the first set value; the cooling efficiency of the air-conditioning when in the second-level cooling mode is higher than the cooling efficiency when the air-conditioning is in the first-level cooling mode.

[0013] According to an intelligent air conditioning control method based on passenger comfort provided by the present application, if the difference between the passenger comfort temperature and the foot temperature and the hip temperature is greater than or equal to the second set value and less than the fourth set value, the air conditioning is controlled to be in the first-level heating mode, the air conditioning wind direction is adjusted to the natural wind direction, and the seat heating is turned off; if the difference between the passenger comfort temperature and the foot temperature and the hip temperature is greater than or equal to the fourth set value, the air conditioning is controlled to be in the second-level heating mode, the air conditioning wind direction is adjusted to blow towards the passenger's feet, and the seat heating is turned on;

[0014] The fourth setting value is greater than the second setting value; the heating efficiency of the air conditioner when in the secondary heating mode is higher than the heating efficiency of the air conditioner when in the primary heating mode.

[0015] The present application also provides an air conditioning intelligent control system based on passenger comfort, wherein the control system is operated by using any of the above-mentioned air conditioning intelligent control methods based on passenger comfort, including:

[0016] A passenger distribution acquisition module, the passenger distribution acquisition module is used to obtain the distribution of passengers in the car;

[0017] A passenger information collection module, which is used to collect passenger body temperature information and passenger characteristic information;

[0018] A passenger comfort temperature acquisition module, wherein the passenger comfort temperature acquisition module is used to acquire the passenger comfort temperature according to the passenger characteristic information;

[0019] A temperature comparison module, the temperature comparison module is used to compare the passenger comfort temperature with the passenger body temperature;

[0020] A control and adjustment module is used to adjust and control the air conditioner according to the comparison result until the passenger body temperature matches the passenger comfort temperature.

[0021] According to an air conditioning intelligent control system based on passenger comfort provided by the present application, the passenger information collection module includes:

[0022] A season identification module, wherein the season identification module is used to identify the current season;

[0023] A body temperature acquisition module, which is used to acquire the temperature of the passenger's head, hips and feet;

[0024] The passenger characteristics acquisition module is used to acquire the height, weight, gender and clothing of the passenger.

[0025] According to an air conditioning intelligent control system based on passenger comfort provided by the present application, the passenger comfort temperature acquisition module includes:

[0026] A basic temperature acquisition module, wherein the basic temperature acquisition module acquires a basic temperature corresponding to the current season based on the current season;

[0027] A feature weight acquisition module, wherein the feature weight acquisition module is used to acquire the height weight, weight weight, gender weight and clothing weight corresponding to the passenger;

[0028] A comfort temperature acquisition module is provided, wherein the comfort temperature acquisition module obtains the corresponding comfort temperature of the passenger by weighting the height weight, the weight, the gender weight and the clothing weight on the basic temperature.

[0029] According to an air-conditioning intelligent control system based on passenger comfort provided by the present application, the temperature comparison module is used to compare the head temperature, foot temperature and hip temperature of the passenger's body temperature with the passenger comfort temperature.

[0030] According to an air conditioning intelligent control system based on passenger comfort provided by the present application, the control and adjustment module includes:

[0031] A cooling control module, the cooling control module is used to control the air conditioner to a cooling mode when the difference between the head temperature and the hip temperature and the passenger comfort temperature is greater than or equal to a first set value;

[0032] A heating control module is used to control the air conditioner to a heating mode when the difference between the passenger comfort temperature and the foot temperature and the hip temperature is greater than or equal to a second set value.

[0033] According to an air conditioning intelligent control system based on passenger comfort provided by the present application, the refrigeration control module includes:

[0034] A primary cooling control module, the primary cooling control module is used to control the air conditioner to be in the primary cooling mode, the air direction of the air conditioner is adjusted to the natural wind direction, and the seat ventilation is closed when the difference between the head temperature and the hip temperature and the passenger comfort temperature is greater than or equal to the first set value and less than the third set value;

[0035] A secondary cooling control module, the secondary cooling control module is used to control the air conditioner to be in a secondary cooling mode, adjust the air direction of the air conditioner to blow toward the passenger's head, and turn on the seat ventilation when the difference between the head temperature and the hip temperature and the passenger comfort temperature is greater than or equal to a third set value;

[0036] The third set value is greater than the first set value; the cooling efficiency of the air conditioner when it is in the secondary cooling mode is higher than the cooling efficiency of the air conditioner when it is in the primary cooling mode.

[0037] According to an air conditioning intelligent control system based on passenger comfort provided by the present application, the heating control module includes:

[0038] A primary heating control module, the primary heating control module is used to control the air conditioner to be in the primary heating mode, adjust the wind direction of the air conditioner to the natural wind direction, and turn off the seat heating when the difference between the passenger comfort temperature and the foot temperature and the hip temperature is greater than or equal to the second set value and less than the fourth set value;

[0039] A secondary heating control module, the secondary heating control module is used to control the air conditioner to be in a secondary heating mode, adjust the air direction of the air conditioner to blow towards the passenger's feet, and turn on the seat heating when the difference between the passenger comfort temperature and the foot temperature and the hip temperature is greater than or equal to a fourth set value;

[0040] The fourth setting value is greater than the second setting value; the heating efficiency of the air conditioner when in the secondary heating mode is higher than the heating efficiency of the air conditioner when in the primary heating mode.

[0041] According to an air conditioning intelligent control system based on passenger comfort provided by the present application, the control and adjustment module includes:

[0042] The non-operation control module is used for not operating the air conditioner when the passenger body temperature is within the range of the difference between the passenger comfort temperature and the second setting value and the sum of the passenger comfort temperature and the first setting value.

[0043] The advantages of this application are as follows: 1. This application performs intelligent and automatic control and adjustment of the air conditioner according to the distribution of passengers in the car. By obtaining the comfort temperature of the passengers, the air conditioner of the corresponding passengers is quickly adjusted according to the body temperature of the passengers, so that the body temperature of the passengers can quickly reach the comfort temperature, so that the passengers are in a good and comfortable environment, and the driving experience is greatly improved. At the same time, this intelligent and automatic control and adjustment of the air conditioner can reasonably control the energy consumption of the air conditioning system, reduce unnecessary energy consumption, increase the cruising range of the whole vehicle, and improve the passenger experience;

[0044] 2. The method of obtaining the passenger's comfort temperature in this application is very simple. By obtaining the current season, the basic temperature corresponding to the current season stored in the control system can be called. The basic temperature is a pre-stored temperature that is considered comfortable for most people in the current season. Then, by weighted calculation of the passenger's height, weight, gender and clothing, the comfort temperature corresponding to the passenger can be obtained, which accurately reflects the passenger's temperature control needs and facilitates providing a better temperature control environment for the passenger.

[0045] 3. This application can accurately judge the actual temperature control and adjustment needs of the current passenger by comparing the head temperature, foot temperature and hip temperature with the passenger comfort temperature. The above three parts can accurately represent the passenger's body temperature. Through the comparative analysis of the three parts, it is convenient to accurately adjust the air conditioner in the future and quickly provide a good temperature environment for the passenger;

[0046] 4. This application controls the air conditioner in cooling mode only when the passenger's body temperature exceeds the passenger's comfort temperature. When the passenger's body temperature is lower than the passenger's comfort temperature, the air conditioner is controlled in heating mode. The control of the air conditioner is completely based on the comparison between the passenger's body temperature and the passenger's comfort temperature. It can accurately provide passengers with a good temperature environment, and has a high degree of intelligence and automation.

[0047] 5. When the passenger's body temperature exceeds the passenger's comfort temperature, the present application adopts different control strategies according to the different differences between the passenger's body temperature and the passenger's comfort temperature. When the temperature difference is high, a stronger cooling mode is adopted to provide a cooling environment for the passengers quickly and conveniently. When the temperature difference is not large, a softer cooling mode is adopted to provide a more comfortable experience for the passengers.

[0048] 6. When the passenger's body temperature is lower than the passenger's comfort temperature, the application will select the appropriate heating mode according to the temperature difference between the passenger's body temperature and the comfort temperature. If the temperature difference is large, a stronger heating mode will be adopted, and if the temperature difference is small, a softer heating mode will be adopted, which effectively improves the passenger's experience.

[0049] 7. The present application also provides an air-conditioning intelligent control system based on passenger comfort. The control system of the present application integrates the above-mentioned air-conditioning intelligent control method based on passenger comfort, and can form an automated and intelligent control module in the automobile control system, so as to facilitate the intelligent and automated control and adjustment of the automobile air-conditioning, reasonably control the energy consumption of the air-conditioning system, reduce unnecessary energy consumption, improve the cruising range of the whole vehicle, and enhance the passenger experience.

[0050] The air-conditioning control method of the present application is simple and efficient. It can accurately identify the temperature sensitivity and demand levels of different passengers. The temperature of each passenger can be adjusted according to the different sitting positions of the passengers to meet the passenger comfort requirements. The energy consumption of the air-conditioning system can also be reasonably controlled according to the different needs of passengers and the number of passengers, thereby reducing unnecessary energy consumption, increasing the cruising range of the entire vehicle, and improving the passenger experience. BRIEF DESCRIPTION OF THE DRAWINGS

[0051] Figure 1 : Schematic diagram of the flow of the air conditioning intelligent control method of the present application;

[0052] Figure 2 : Schematic diagram of cooling mode control of the air conditioner intelligent control method of the present application;

[0053] Figure 3 : Schematic diagram of heating mode control of the air conditioning intelligent control method of the present application. DETAILED DESCRIPTION

[0054] The embodiments of the present application are described in detail below, wherein the same or similar reference numerals throughout represent the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are intended to be used to explain the present application, and should not be construed as limiting the present application.

[0055] In the description of the present application, it should be understood that the terms "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", etc., indicating orientations or positional relationships, are based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present application.

[0056] In addition, the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" and "second" may explicitly or implicitly include one or more of the features. In the description of this application, the meaning of "plurality" is at least two, such as two, three, etc., unless otherwise clearly and specifically defined.

[0057] The present application is further described in detail below in conjunction with the accompanying drawings and specific embodiments.

[0058] The present application relates to an intelligent air conditioning control method based on passenger comfort. The control method of the present application obtains the temperature value that satisfies the passenger comfort in the current environment by collecting the distribution position of the passengers in the car, collecting the body temperature and characteristic information of the passengers, and then adjusts the air conditioning of the corresponding passenger in combination with the current body temperature of the passenger, so that the body temperature of the passenger converges to the passenger comfort temperature, providing a good riding experience for the passenger. The intelligent air conditioning control method of the present application can accurately identify the temperature sensitivity and demand of different passengers, and can adjust the temperature of each passenger according to the different passenger seating positions to meet the passenger comfort requirements; it can also reasonably control the energy consumption of the air conditioning system according to the different passenger needs and the number of passengers, reduce unnecessary energy consumption, improve the cruising range of the whole vehicle, and improve the passenger experience.

[0059] like Figures 1 to 3 As shown, an air conditioning intelligent control method based on passenger comfort of the present application is specifically performed according to the following steps:

[0060] S1. Obtain the distribution of passengers in the vehicle, and collect passenger body temperature information and passenger characteristic information;

[0061] By obtaining the distribution position of passengers in the car, the air conditioner at the corresponding passenger position can be called to adjust the temperature of the passenger, thus avoiding the energy waste caused by operating the air conditioner of the entire car, and directly controlling the temperature of the passengers in the car in a more centralized manner. First, the temperature control efficiency is higher, and second, energy is saved;

[0062] Collecting the passenger's body temperature information is actually collecting the passenger's current body temperature information to determine the current temperature condition of the passenger. Collecting the passenger's characteristic information is to facilitate the subsequent acquisition of the passenger's comfort temperature.

[0063] S2. Obtaining passenger comfort temperature based on passenger characteristic information;

[0064] Passenger comfort temperature is the temperature value that makes passengers feel comfortable in the current environment. Passenger comfort temperature is the target temperature for intelligent and automatic adjustment of air conditioning;

[0065] S3, comparing the passenger's body temperature with the passenger's comfort temperature;

[0066] By comparing the passenger's body temperature with the passenger's comfort temperature, it is possible to determine whether the air conditioner currently needs cooling, heating or no operation. The comparison result directly affects the final air conditioner control mode.

[0067] S4. Control the vehicle air conditioner according to the comparison result until the passenger body temperature matches the passenger comfort temperature;

[0068] Select the corresponding control mode according to the comparison result, and directly adjust the temperature of the passenger so that the passenger body temperature converges to the passenger comfort temperature until it matches the passenger comfort temperature. The compliance in this application means that the passenger body temperature is within the set range of the passenger comfort temperature, which can be considered to have met the required adjustment requirements.

[0069] In some embodiments of the present application, this embodiment optimizes the above-mentioned step S1, and the data collected in this embodiment is divided into multiple levels. The distribution of passengers in the car can be monitored by weight sensors on the seats, that is, each seat is equipped with a weight sensor, and when the weight sensor on the seat monitors that the weight exceeds the set weight, it can be determined that there is a passenger on the seat; or the in-car camera is used for identification. The in-car camera collects image information in the car, compares the image information in the car with the image information when there is no one in the car, and can determine whether there is a passenger in the current seat; in fact, there are many ways to obtain the distribution of passengers in the car, as long as the distribution position of the passengers can be accurately identified.

[0070] The collection of passengers' body temperature information is achieved through the thermal imaging camera installed in the car. The thermal imaging camera installed in the car can accurately obtain the passengers' body temperature information.

[0071] The collection of passenger characteristic information is carried out through a camera combined with a weight sensor on the seat. The camera obtains image information of the passenger, and the image information is compared with standard image information stored in the control system to accurately identify the current passenger's gender, clothing and height information. The passenger's gender can be obtained by comparing the collected image information with the facial features of the standard image information, the current clothing information can be obtained by the exposed area of ​​the passenger's body in the collected image information, and the passenger's height information can be obtained by comparing the top of the passenger's head in the collected image information with the height of the passenger's head in the standard image information. The passenger's weight information is directly obtained through the weight sensor on the corresponding seat.

[0072] It is also necessary to collect the current season. Different seasons correspond to different temperature requirements. The seasons can be simplified into winter and summer, that is, as long as the current temperature exceeds the set temperature, it is considered summer, and below the set temperature, it is considered winter. The set temperature can be set and selected according to actual needs, such as 20°C. When it is determined to be winter, the setting range of the basic temperature is 15°C to 24°C, and the specific temperature can be determined according to the currently collected ambient temperature. The higher the ambient temperature, the lower the winter basic temperature setting, and vice versa. The lower the ambient temperature, the higher the winter basic temperature setting; when it is determined to be summer, the setting range of the basic temperature is 17°C to 26°C, and the specific temperature can be determined according to the currently collected ambient temperature. The higher the ambient temperature, the lower the summer basic temperature setting, and vice versa, the lower the ambient temperature, the higher the summer basic temperature setting.

[0073] In a further embodiment of the present application, this embodiment optimizes the above-mentioned step S2, and the method for obtaining the passenger comfort temperature based on the passenger characteristic information is as follows: the current season is obtained in the above-mentioned manner, thereby obtaining the basic temperature corresponding to the current season; the passenger's height, weight, gender and clothing information are obtained, and the passenger's height weight, weight weight, gender weight and clothing weight can be obtained through a comparison table stored in the control system; finally, the height weight, weight weight, gender weight and clothing weight are weighted on the basic temperature to obtain the corresponding passenger comfort temperature.

[0074] In actual application, in winter, the taller the passenger is and the larger the passenger's body area is, the greater the passenger's height weight is, and vice versa, the smaller it is. In this way, a corresponding table of winter height weights corresponding to passenger heights is constructed; the heavier the passenger is and the larger the passenger's body area is, the greater the passenger's weight weight is, and vice versa, the smaller it is. In this way, a corresponding table of winter weight weights corresponding to passenger weights is constructed; in passenger clothing information, the larger the passenger's exposed area is, that is, the less clothing is, indicating that the passenger has more heating needs, and the greater the passenger's clothing weight is, and vice versa, the smaller it is. In this way, a corresponding table of winter clothing weights corresponding to passenger clothing is constructed;

[0075] In summer, the taller the passenger is, the larger the passenger's body area is, the greater the passenger's heat dissipation demand is, and the smaller the passenger's height weight is, and vice versa. In this way, a corresponding table of summer height weights corresponding to passenger heights is constructed; the heavier the passenger is, the larger the passenger's body area is, the greater the heat dissipation demand is, and the smaller the passenger's weight is, and vice versa. In this way, a corresponding table of summer weight weights corresponding to passenger weights is constructed; in the passenger's clothing information, the smaller the passenger's exposed area, that is, the more clothes the passenger has, it indicates that the passenger has more heat dissipation demand, and the smaller the passenger's clothing weight is, and vice versa. In this way, a corresponding table of summer clothing weights corresponding to passenger clothing is constructed.

[0076] The idea of ​​constructing the weight correspondence table is: because the passenger comfort temperature of this embodiment is obtained by weighting the basic temperature, in winter, if there are more heating demands, the weight will be designed to be larger, so that the final passenger comfort temperature will be higher, and the passengers can obtain more rapid heating regulation, otherwise the final passenger comfort temperature will be lower; in summer, if there are more heat dissipation demands, the weight will be designed to be smaller, so that the final passenger comfort temperature will be lower, and the cooling of the passengers will be faster, otherwise the final passenger comfort temperature will be higher.

[0077] In other embodiments of the present application, this embodiment optimizes the above-mentioned step S3. Specifically, this embodiment compares the more typical parts of the passenger's body with the passenger's comfort temperature. The selected typical parts are the head, legs and feet, which actually correspond to the upper, middle and lower parts of the passenger. Comparing the head temperature, foot temperature and hip temperature of the passenger's body temperature with the passenger's comfort temperature can just reflect the temperature conditions of the upper, middle and lower positions of the passenger's body.

[0078] In a further embodiment of the present application, this embodiment optimizes the above-mentioned step S4. Specifically, the head temperature and hip temperature of the passenger's body temperature are compared with the passenger comfort temperature. If the difference between the head temperature and hip temperature and the passenger comfort temperature is greater than or equal to a first set value, the air conditioner is controlled to a cooling mode; if the difference between the passenger comfort temperature and the foot temperature and hip temperature is greater than or equal to a second set value, the air conditioner is controlled to a heating mode.

[0079] In the high temperature environment in summer, the passenger's head temperature and hip temperature can better reflect the passenger's real needs, so the passenger's head temperature and hip temperature are compared with the passenger's comfort temperature; in the low temperature environment in winter, the passenger's foot temperature and hip temperature can better reflect the passenger's real needs, so the passenger's foot temperature and hip temperature are compared with the passenger's comfort temperature.

[0080] Control of cooling mode and heating mode, such as Figure 2 and3 As shown, this embodiment sets a first set temperature and a second set temperature for control, and the first set temperature and the second set temperature can be equal or different. The first set temperature of this embodiment can be 1°C, and the second set temperature can also be set to 1°C, or other temperature values ​​can be selected according to actual needs. That is to say, when the difference between the passenger's head temperature and hip temperature and the passenger's comfort temperature is greater than or equal to the first set temperature, it proves that the passenger's body temperature at this time exceeds the passenger's comfort temperature, and it is necessary to adjust the air conditioner to the cooling mode to lower the passenger's body temperature; when the difference between the passenger's comfort temperature and the passenger's foot temperature and hip temperature is greater than or equal to the second set temperature, that is, the passenger's body temperature is lower than the passenger's comfort temperature, it is necessary to adjust the air conditioner to the heating mode to increase the passenger's body temperature.

[0081] If the difference between the head temperature and the passenger comfort temperature in the passenger's body temperature exceeds the first set temperature, but the difference between the passenger's hip temperature and the passenger comfort temperature is lower than the first set temperature, there may be a temperature acquisition error, and troubleshooting is required for further judgment. The judgment of the body temperature and the passenger comfort temperature in this embodiment requires that the comparison between the temperatures of the two parts to be judged is consistent with the passenger comfort temperature, and even if there is a deviation, the deviation is within an appropriate range.

[0082] A further control measure is: if the difference between the passenger's head temperature and hip temperature and the passenger's comfort temperature is greater than or equal to the first set value and less than the third set value (the third set value in this embodiment can be 3°C), the air conditioner is controlled to be in the first-level cooling mode, the wind direction of the air conditioner is adjusted to the natural wind direction, and the seat ventilation is closed. At this time, the temperature difference between the passenger's body temperature and the passenger's comfort temperature is small, and the passenger's body temperature is slightly higher than the passenger's comfort temperature. Therefore, a softer cooling mode can meet the required temperature control requirements; if the difference between the passenger's head temperature and hip temperature and the passenger's comfort temperature is greater than or equal to the third set value, the air conditioner is controlled to be in the second-level cooling mode, the wind direction of the air conditioner is adjusted to blow towards the passenger's head, and the seat ventilation is turned on. At this time, the temperature difference between the passenger's body temperature and the passenger's comfort temperature is large, and the passenger's body temperature is higher than the passenger's comfort temperature. Therefore, a stronger cooling mode is adopted to quickly meet the required temperature control requirements.

[0083] The first setting value and the third setting value can be set according to actual needs. In this embodiment, the first setting value can be 1°C, and the third setting value can be 3°C. The actual control is not limited to the above values, and other values ​​can be selected as long as the needs are met.

[0084] The cooling efficiency of the air conditioner in this embodiment when in the secondary cooling mode is higher than that when in the primary cooling mode, that is, the secondary cooling mode reduces the passenger temperature faster than the primary cooling mode in the same amount of time.

[0085] If the difference between the passenger comfort temperature and the foot temperature and hip temperature is greater than or equal to the second set value and less than the fourth set value, the air conditioner is controlled to the first-level heating mode, the wind direction of the air conditioner is adjusted to the natural wind direction, and the seat heating is turned off; if the difference between the passenger comfort temperature and the foot temperature and hip temperature is greater than or equal to the fourth set value, the air conditioner is controlled to the second-level heating mode, the wind direction of the air conditioner is adjusted to blow towards the passenger's feet, and the seat heating is turned on; the fourth set value is less than the second set value and less than the first set value.

[0086] When the passenger comfort temperature exceeds the passenger's foot temperature and hip temperature, it proves that the passenger's body temperature is low at this time, and the air conditioner needs to perform heating operation. The specific heating mode needs to be further judged based on the temperature difference between the passenger comfort temperature and the passenger's foot temperature and hip temperature. If the difference between the passenger comfort temperature and the foot temperature and hip temperature is greater than or equal to the second setting value and less than the fourth setting value, it proves that the temperature difference is small at this time, and the passenger's body temperature is close to the passenger comfort temperature. At this time, a softer heating mode can be used to heat up the passenger's body temperature; if the difference between the passenger comfort temperature and the foot temperature and hip temperature is greater than or equal to the fourth setting value, it proves that the temperature difference is large at this time, and the passenger's body temperature is far from the passenger comfort temperature, and a stronger heating mode needs to be used to increase the passenger's body temperature.

[0087] The second set value and the fourth set value of this embodiment are set according to actual needs. The second set value can be set to 1°C and the fourth set value can be set to 3°C. The actual control is not limited to the above values ​​and other values ​​can be selected as long as the needs are met.

[0088] If the passenger body temperature is within the range of the difference between the passenger comfort temperature and the second set value and the sum of the passenger comfort temperature and the first set value, the air conditioner is not operated. In other words, it is considered that the passenger body temperature and the passenger comfort temperature are very close at this time, and the passenger body temperature is converging toward the passenger comfort temperature. It is considered that the passenger body temperature meets the passenger comfort requirements at this time, and therefore there is no need to control the current air conditioner.

[0089] The control of the air conditioner in this embodiment is divided into cooling mode and heating mode, wherein the cooling mode includes two types, one is to control the air conditioner to the first-level cooling mode, the air conditioner wind direction is adjusted to the natural wind direction, and the seat ventilation is closed, and the other is to control the air conditioner to the second-level cooling mode, the air conditioner wind direction is adjusted to blow towards the passenger's head, and the seat ventilation is turned on. The heating mode is also divided into two types, one is to control the air conditioner to the first-level heating mode, the air conditioner wind direction is adjusted to the natural wind direction, and the seat heating is turned off, and the other is to control the air conditioner to the second-level heating mode, the air conditioner wind direction is adjusted to blow towards the passenger's feet, and the seat heating is turned on.

[0090] In actual application, the distribution of passengers in the car is obtained, and the thermal imaging camera installed in the car is used to accurately obtain the body temperature information of the passengers, including the temperature of the head, hips and feet of the passengers. The camera and sensors inside the vehicle are used to obtain the weight, gender, clothing and height information of the passengers in the car, and the current season;

[0091] Based on the current season, the basic temperature corresponding to the current season is obtained. Based on the height, weight, gender and clothing information of the passenger, the height weight, weight, gender weight and clothing weight of the passenger are obtained through the comparison table stored in the control system; finally, the height weight, weight weight, gender weight and clothing weight are weighted on the basic temperature to obtain the corresponding comfort temperature of the passenger;

[0092] Compare the head temperature, foot temperature and hip temperature of the passenger's body temperature with the passenger's comfort temperature;

[0093] If the difference between the head temperature and hip temperature and the passenger comfort temperature is greater than or equal to the first setting value, the air conditioner is controlled to be in cooling mode; if the difference between the head temperature and hip temperature and the passenger comfort temperature is greater than or equal to the first setting value and less than the third setting value, the air conditioner is controlled to be in primary cooling mode, the air direction of the air conditioner is adjusted to natural wind direction, and the seat ventilation is closed; if the difference between the head temperature and hip temperature and the passenger comfort temperature is greater than or equal to the third setting value, the air conditioner is controlled to be in secondary cooling mode, the air direction of the air conditioner is adjusted to blow towards the passenger's head, and the seat ventilation is opened;

[0094] If the difference between the passenger comfort temperature and the foot temperature and the hip temperature is greater than or equal to the second set value, the air conditioner is controlled to be in heating mode; if the difference between the passenger comfort temperature and the foot temperature and the hip temperature is greater than or equal to the second set value and less than the fourth set value, the air conditioner is controlled to be in primary heating mode, the air direction of the air conditioner is adjusted to natural wind direction, and the seat heating is turned off; if the difference between the passenger comfort temperature and the foot temperature and the hip temperature is greater than or equal to the fourth set value, the air conditioner is controlled to be in secondary heating mode, the air direction of the air conditioner is adjusted to blow towards the passenger's feet, and the seat heating is turned on;

[0095] If the passenger body temperature is within the range of the difference between the passenger comfort temperature and the second setting value and the sum of the passenger comfort temperature and the first setting value, the air conditioner is not operated.

[0096] The present application also relates to an intelligent air-conditioning control system based on passenger comfort, including a passenger distribution acquisition module, a passenger information acquisition module, a passenger comfort temperature acquisition module, a temperature comparison module and a control and adjustment module, wherein the passenger distribution acquisition module is used to obtain the distribution of passengers in the vehicle; the passenger information acquisition module is used to collect passenger body temperature information and passenger characteristic information; the passenger comfort temperature acquisition module is used to obtain the passenger comfort temperature based on the passenger characteristic information; the temperature comparison module is used to compare the passenger comfort temperature with the passenger body temperature; and the control and adjustment module is used to adjust and control the air-conditioning according to the comparison result until the passenger body temperature matches the passenger comfort temperature.

[0097] The passenger information collection module includes a season recognition module, a body temperature acquisition module and a passenger feature acquisition module. The season recognition module is used to identify the current season; the body temperature acquisition module is used to acquire the passenger's head temperature, hip temperature and foot temperature; the passenger feature acquisition module is used to acquire the passenger's height, weight, gender and clothing.

[0098] The passenger comfort temperature acquisition module includes a basic temperature acquisition module, a feature weight acquisition module and a comfort temperature acquisition module. The basic temperature acquisition module acquires the basic temperature corresponding to the current season based on the current season; the feature weight acquisition module is used to acquire the height weight, weight weight, gender weight and clothing weight corresponding to the passenger; the comfort temperature acquisition module obtains the comfort temperature corresponding to the passenger by weighting the height weight, weight weight, gender weight and clothing weight on the basic temperature.

[0099] The temperature comparison module is used to compare the head temperature, foot temperature and hip temperature of the passenger's body temperature with the passenger's comfort temperature.

[0100] The control and adjustment module includes a cooling control module and a heating control module. The cooling control module is used to control the air conditioner to a cooling mode when the difference between the head temperature and the hip temperature and the passenger comfort temperature is greater than or equal to a first set value; the heating control module is used to control the air conditioner to a heating mode when the difference between the passenger comfort temperature and the foot temperature and the hip temperature is greater than or equal to a second set value.

[0101] The refrigeration control module includes a primary refrigeration control module and a secondary refrigeration control module. The primary refrigeration control module is used to control the air conditioner to be in the primary refrigeration mode, the air direction of the air conditioner is adjusted to the natural wind direction, and the seat ventilation is closed when the difference between the head temperature and the hip temperature and the passenger comfort temperature is greater than or equal to the first setting value and less than the third setting value; the secondary refrigeration control module is used to control the air conditioner to be in the secondary refrigeration mode, the air direction of the air conditioner is adjusted to blow towards the passenger's head, and the seat ventilation is turned on when the difference between the head temperature and the hip temperature and the passenger comfort temperature is greater than or equal to the third setting value; the third setting value is greater than the first setting value; the refrigeration efficiency of the air conditioner in the secondary refrigeration mode is higher than the refrigeration efficiency when the air conditioner is in the primary refrigeration mode.

[0102] The heating control module includes a first-level heating control module and a second-level heating control module. The first-level heating control module is used to control the air conditioner to be in the first-level heating mode, the air direction of the air conditioner is adjusted to the natural wind direction, and the seat heating is turned off when the difference between the passenger comfort temperature and the foot temperature and the hip temperature is greater than or equal to the second setting value and less than the fourth setting value; the second-level heating control module is used to control the air conditioner to be in the second-level heating mode, the air direction of the air conditioner is adjusted to blow towards the passenger's feet, and the seat heating is turned on when the difference between the passenger comfort temperature and the foot temperature and the hip temperature is greater than or equal to the fourth setting value; the fourth setting value is greater than the second setting value; the heating efficiency of the air conditioner when it is in the second-level heating mode is higher than the heating efficiency when it is in the first-level heating mode.

[0103] The control and adjustment module includes a no-operation control module, which is used for not operating the air conditioner when the passenger body temperature is within the range of the difference between the passenger comfort temperature and the second setting value and the sum of the passenger comfort temperature and the first setting value.

[0104] The above shows and describes the basic principles, main features and advantages of the present application. Those skilled in the art should understand that the present application is not limited by the above embodiments, and the above embodiments and descriptions are only for explaining the principles of the present application. The present application may have various changes and improvements without departing from the spirit and scope of the present application, and these changes and improvements fall within the scope of the present application to be protected. The scope of protection claimed in the present application is defined by the attached claims and their equivalents.

Claims

1. An intelligent air conditioning control method based on passenger comfort, characterized in that: include, Obtain the distribution of passengers in the car, collect passenger body temperature information and passenger characteristic information; Obtaining passenger comfort temperature based on passenger characteristic information; Compare passenger body temperature to passenger comfort temperature; The vehicle air conditioner is controlled according to the comparison results until the passenger body temperature matches the passenger comfort temperature.

2. The air conditioning intelligent control method based on passenger comfort as claimed in claim 1, characterized in that: The method for obtaining the passenger comfort temperature based on passenger characteristic information includes: obtaining the current season and obtaining the basic temperature corresponding to the current season; collecting the height, weight, gender and clothing information of the passenger and obtaining the height weight, weight weight, gender weight and clothing weight corresponding to the passenger; and weighting the height weight, weight weight, gender weight and clothing weight on the basic temperature to obtain the comfort temperature corresponding to the passenger.

3. The air conditioning intelligent control method based on passenger comfort as claimed in claim 1, characterized in that: The method for comparing the passenger body temperature with the passenger comfort temperature includes: comparing the head temperature, foot temperature and hip temperature of the passenger body temperature with the passenger comfort temperature.

4. The air conditioning intelligent control method based on passenger comfort as claimed in claim 1, characterized in that: The method for controlling the vehicle air conditioner according to the comparison result includes: comparing the head temperature and the hip temperature of the passenger's body temperature with the passenger's comfort temperature, and if the difference between the head temperature and the hip temperature and the passenger's comfort temperature is greater than or equal to a first set value, controlling the air conditioner to a cooling mode; if the difference between the passenger's comfort temperature and the foot temperature and the hip temperature is greater than or equal to a second set value, controlling the air conditioner to a heating mode.

5. The air conditioning intelligent control method based on passenger comfort as claimed in claim 4, characterized in that: If the difference between the head temperature and the hip temperature and the passenger comfort temperature is greater than or equal to the first set value and less than the third set value, the air conditioner is controlled to the first-level cooling mode, the wind direction of the air conditioner is adjusted to the natural wind direction, and the seat ventilation is closed; if the difference between the head temperature and the hip temperature and the passenger comfort temperature is greater than or equal to the third set value, the air conditioner is controlled to the second-level cooling mode, the wind direction of the air conditioner is adjusted to blow towards the passenger's head, and the seat ventilation is turned on; the third set value is greater than the first set value; the cooling efficiency of the air conditioner in the second-level cooling mode is higher than the cooling efficiency when the air conditioner is in the first-level cooling mode.

6. The air conditioning intelligent control method based on passenger comfort as claimed in claim 4, characterized in that: If the difference between the passenger comfort temperature and the foot temperature and the hip temperature is greater than or equal to the second setting value and less than the fourth setting value, the air conditioner is controlled to the first-level heating mode, the air conditioner wind direction is adjusted to the natural wind direction, and the seat heating is turned off; if the difference between the passenger comfort temperature and the foot temperature and the hip temperature is greater than or equal to the fourth setting value, the air conditioner is controlled to the second-level heating mode, the air conditioner wind direction is adjusted to blow towards the passenger's feet, and the seat heating is turned on; The fourth set value is greater than the second set value; the heating efficiency of the air conditioner when in the secondary heating mode is higher than the heating efficiency of the air conditioner when in the primary heating mode.

7. An intelligent air conditioning control system based on passenger comfort, characterized in that: The control system is operated by using any of the air conditioning intelligent control methods based on passenger comfort as described in claims 1 to 7. include, A passenger distribution acquisition module, the passenger distribution acquisition module is used to obtain the distribution of passengers in the car; A passenger information collection module, which is used to collect passenger body temperature information and passenger characteristic information; A passenger comfort temperature acquisition module, wherein the passenger comfort temperature acquisition module is used to acquire the passenger comfort temperature according to the passenger characteristic information; A temperature comparison module, the temperature comparison module is used to compare the passenger comfort temperature with the passenger body temperature; A control and adjustment module is used to adjust and control the air conditioner according to the comparison result until the passenger body temperature matches the passenger comfort temperature.

8. The air conditioning intelligent control system based on passenger comfort as claimed in claim 7, characterized in that: The passenger information collection module includes: A season identification module, wherein the season identification module is used to identify the current season; A body temperature acquisition module, which is used to acquire the temperature of the passenger's head, hips and feet; The passenger characteristics acquisition module is used to acquire the height, weight, gender and clothing of the passenger.

9. The air conditioning intelligent control system based on passenger comfort as claimed in claim 8, characterized in that: The passenger comfort temperature acquisition module includes: A basic temperature acquisition module, wherein the basic temperature acquisition module acquires a basic temperature corresponding to the current season based on the current season; A feature weight acquisition module, wherein the feature weight acquisition module is used to acquire the height weight, weight weight, gender weight and clothing weight corresponding to the passenger; A comfort temperature acquisition module is provided, wherein the comfort temperature acquisition module obtains the corresponding comfort temperature of the passenger by weighting the height weight, the weight, the gender weight and the clothing weight on the basic temperature.

10. The air conditioning intelligent control system based on passenger comfort as claimed in claim 8, characterized in that: The control and regulation module includes: A cooling control module, the cooling control module is used to control the air conditioner to a cooling mode when the difference between the head temperature and the hip temperature and the passenger comfort temperature is greater than or equal to a first set value; A heating control module is used to control the air conditioner to a heating mode when the difference between the passenger comfort temperature and the foot temperature and the hip temperature is greater than or equal to a second set value.

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