System for controlling air conditioning of vehicle

Abstract

The present invention relates to an air conditioning control device and method for a bus, and its main purpose is to provide an air conditioning control device and method for a bus that can provide a more comfortable environment for passengers and improve vehicle fuel efficiency (or energy efficiency) by performing efficient and active air conditioning control using real-time passenger information within the bus. To achieve the above objective, an air conditioning control device for a bus is disclosed, configured such that an external server collects and stores information transmitted from buses in operation, determines basic air conditioning setting values ​​for each bus route and operating time based on the stored information and bus operation information, and transmits accumulated big data information including the basic air conditioning setting values ​​to the buses in operation; and a controller in the bus, which is the vehicle to be controlled, performs air conditioning control of the bus based on real-time information acquired by a passenger information collection unit, a body temperature measurement unit, a boarding location information provision unit, and a sensor, and big data information corresponding to the bus route and operating time received from the external server.

Description

Technology Field

[0001] The present invention relates to an air conditioning control device for a bus, and more specifically, to an air conditioning control device for a bus that can provide a more comfortable environment to passengers and improve vehicle fuel efficiency (or energy efficiency) by performing efficient and active air conditioning control using real-time passenger information within the bus. Background Technology

[0003] As is well known, automobiles are equipped with an HVAC (Heating, Ventilation, and Air Conditioning) system to regulate the interior temperature and create a comfortable indoor environment.

[0004] Recently, the FATC (Full Automatic Temperature Control) system, which automatically adjusts the interior temperature according to the temperature set by the driver or passengers to maintain a comfortable indoor environment, is being applied to most vehicles.

[0005] In the FATC system, when a user sets a target air conditioning temperature, the controller calculates the indoor heat load using information such as solar radiation, outside temperature, and indoor temperature detected by sensors to control the vehicle's interior temperature to the user-set target temperature, and then determines the discharge mode, discharge temperature, discharge direction, and discharge airflow based on the corresponding air conditioning load.

[0006] Meanwhile, in the case of buses, a roof-type air conditioning unit is generally provided on the vehicle roof, which includes a roof-top case equipped with an air conditioner condenser, cooling fan, and air conditioning piping for indoor cooling.

[0007] Furthermore, although buses are primarily used as public transportation vehicles because they can accommodate a large number of passengers, unlike passenger cars, it is difficult to implement optimal air conditioning that can satisfy all passengers because not only do many passengers board at once, but the number of passengers and their boarding positions constantly change during operation.

[0008] In buses, it is practically difficult to provide a comfortable environment that can individually satisfy all passengers on board through air conditioning, such as indoor cooling and heating.

[0009] Recently, temperature fluctuations caused by extreme heat or cold, as well as humidity fluctuations caused by the rainy season or showers, have become more severe. Although there is an effort to provide a comfortable environment for bus passengers by operating the air conditioning system in vehicles to respond to these environmental changes, the current air conditioning system in buses is very passive.

[0010] For example, if the interior temperature of the bus rises due to a sudden increase in passengers' body heat, numerous passenger complaints regarding the air conditioning performance may arise, and on days when it suddenly rains, problems caused by humidity may occur.

[0011] In addition, if the vehicle's interior temperature is fixed at the temperature set by the driver without considering the number of passengers during the cold winter, there may be a significant difference in the perceived temperature felt by passengers when there are 1 or 2 passengers compared to when the vehicle is full, which can lead to various problems such as passenger dissatisfaction.

[0012] While the bus driver could simply take appropriate countermeasures by properly operating the air conditioning system whenever a problem arises, this may cause significant inconvenience to the driver, and operating the air conditioning system while driving can be a factor that hinders safe driving. The problem to be solved

[0014] Accordingly, the present invention was created to solve the aforementioned problems, and aims to provide a bus air conditioning control device capable of providing a more comfortable environment for passengers and improving vehicle fuel efficiency (or energy efficiency) by performing efficient and active air conditioning control using real-time passenger information within the bus.

[0015] The objectives of the present invention are not limited to those mentioned above, and other unmentioned objectives will be clearly understood by those skilled in the art to which the present invention pertains (hereinafter referred to as "skilled in the art") from the description below. means of solving the problem

[0017] To achieve the above objective, according to an embodiment of the present invention, a bus air conditioning control device is provided, comprising: a passenger information collection unit that acquires and provides passenger boarding information from a bus; a body temperature measurement unit that measures and provides the body temperature of a passenger who has boarded the bus; a boarding location information provision unit that acquires and provides passenger boarding location information where a passenger is boarding inside the bus; a sensor that detects and provides environmental information for air conditioning control; an external server that collects and stores information transmitted from buses in operation, determines basic air conditioning setting values ​​for each bus route and operating time based on the stored information and bus operation information, and transmits big data information including the stored information and basic air conditioning setting values ​​to the buses in operation; and a controller that transmits real-time information acquired by the passenger information collection unit, body temperature measurement unit, boarding location information provision unit, and sensor to the external server via a bus internal communication unit, receives big data information corresponding to the bus route and operating time from the external server via the communication unit, and performs air conditioning control of the bus based on the acquired real-time information and the received big data information. Effects of the invention

[0019] Thus, according to the air conditioning control device of the bus of the present invention, more efficient and active vehicle air conditioning control can be performed by utilizing the body temperature of passengers actually boarding the bus, passenger boarding location information within the bus, and real-time temperature and humidity information. As a result, a more comfortable indoor environment can be provided to passengers, and individual optimal air conditioning control for each location and space within the bus can be provided.

[0020] In addition, improvements in energy efficiency can be expected in eco-friendly vehicles such as electric buses or hydrogen electric buses, and as it becomes possible to measure the body temperature of passengers boarding buses in the post-COVID era, there is also the additional benefit of being able to identify suspected infected patients before they board the bus. Brief explanation of the drawing

[0022] FIG. 1 is a block diagram showing the configuration of an air conditioning control device according to an embodiment of the present invention. FIGS. 2 and FIGS. 3 are flowcharts illustrating an air conditioning control process according to an embodiment of the present invention. Specific details for implementing the invention

[0023] The specific structural or functional descriptions presented in the embodiments of the invention are merely illustrative for the purpose of explaining embodiments according to the concept of the invention, and embodiments according to the concept of the invention may be implemented in various forms. Furthermore, it should not be interpreted as being limited to the embodiments described herein, but should be understood to include all modifications, equivalents, and substitutions that fall within the spirit and scope of the invention.

[0024] Meanwhile, in the present invention, terms such as "first" and / or "second" may be used to describe various components, but said components are not limited to said terms. For the sole purpose of distinguishing one component from other components, for example, without departing from the scope of rights according to the concept of the present invention, the first component may be named the second component, and similarly, the second component may be named the first component.

[0025] When it is stated that one component is "connected" or "connected" to another component, it should be understood that while it may be directly connected or connected to that other component, there may also be other components in between. Conversely, when it is stated that one component is "directly connected" or "directly in contact" with another component, it should be understood that there are no other components in between. Other expressions used to describe the relationship between components, such as "between" and "exactly between," or "adjacent to" and "directly adjacent to," should be interpreted in the same way.

[0026] Throughout the specification, identical reference numbers denote identical components. The terms used in this specification are for describing embodiments and are not intended to limit the invention. In this specification, the singular form includes the plural form unless specifically stated otherwise in the text. As used in this specification, "comprises" and / or "comprising" do not exclude the presence or addition of one or more other components, steps, actions, and / or elements to the mentioned components, steps, actions, and / or elements.

[0028] The present invention aims to provide a bus air conditioning control device capable of providing a more comfortable environment for passengers and improving vehicle fuel efficiency (or energy efficiency) by performing efficient and active air conditioning control using real-time passenger information within the bus.

[0029] The present invention is applicable to electric buses or hydrogen electric buses driven by motors, wherein the fuel efficiency is replaced by the electric efficiency. An electric bus is a bus that uses a battery as a power source, and a hydrogen electric bus is a bus that uses a hydrogen fuel cell and a battery as power sources.

[0030] In particular, the present invention relates to an air conditioning control device for a bus that can actively provide and maintain a more comfortable environment desired by bus passengers by utilizing big data information accumulated for buses operating on the same route at the same time, real-time passenger information within the bus, and environmental information such as ambient temperature, humidity, and indoor temperature detected by sensors. Here, the passenger information within the bus may include passenger boarding information, body temperature information of passengers on the bus, and passenger boarding location information within the bus.

[0031] Recently, the use of measuring devices that can simply measure people's body temperature in a non-contact manner has been increasing. In addition, the number of people wearing wearable devices such as smartwatches and smart bands has recently increased, and body temperature measured by wearable devices can be checked, stored, and managed through smart devices such as smartphones.

[0032] As such, it is becoming increasingly easier to obtain data on people's body temperatures, and it is becoming possible to more easily convert people's locations, presence, and movement status into data using QR codes and the like. In the future, such individual information can be utilized in a more diverse way, and by rapidly acquiring, analyzing, and utilizing the vast amount of information accessible in the 5G era, it will be possible to proactively respond to vehicle climate control.

[0033] Based on this, an air conditioning control device is disclosed that can implement and provide optimal air conditioning suitable for the current passenger boarding situation inside the bus by acquiring and analyzing body temperature data of passengers boarding the bus and passenger boarding location data in real time.

[0034] Hereinafter, embodiments of the present invention will be described in detail with reference to the attached drawings.

[0035] FIG. 1 is a block diagram showing the configuration of an air conditioning control device according to an embodiment of the present invention.

[0036] As shown in FIG. 1, the air conditioning control device according to an embodiment of the present invention is for controlling the air conditioning device (28) of a bus (20) that is a vehicle to be controlled, and includes an external server (11), an in-vehicle controller (27) and a communication unit (21), a passenger information collection unit (22), a boarding location information provision unit (23), a body temperature measurement unit (24), an ambient temperature sensor (25), and a humidity sensor (26).

[0037] Among these, the controller (27), the communication unit (21), the passenger information collection unit (22), the boarding location information provision unit (23), the body temperature measurement unit (24), the ambient temperature sensor (25), and the humidity sensor (26) are provided in a bus (20), which is a vehicle to be controlled and to which the air conditioning control device according to an embodiment of the present invention is applied, and the controller (27) may be an air conditioning controller that performs air conditioning control in the vehicle.

[0038] The communication unit (21) is a wireless communication means connected to the controller (27) in the vehicle to enable communication between the controller (27) and the external server (11). In an embodiment of the present invention, any known communication means that enables wireless communication between the vehicle and the external server (11) may be adopted as the communication unit (21).

[0039] Regarding the means of communication that enables wireless communication with an external server (11) in a vehicle, various types are known and components that are widely applied in actual vehicles, so a detailed description will be omitted.

[0040] The external server (11) may be a server of an external system provided outside of the bus (20), which is the vehicle to be controlled, that is, a server of a bus operation management system (10) that communicates with buses in operation to store and provide information necessary for bus air conditioning control. Here, the buses are buses to which the air conditioning control device according to an embodiment of the present invention is applied.

[0041] Additionally, bus operation information related to local bus operations is stored in the external server (11), and passenger information within the bus is received from the bus (20) currently in operation, stored, and converted into data. In an embodiment of the present invention, data such as bus operation information and passenger information within the bus, which are stored and accumulated in the external server (11) as described above, are utilized as big data for performing air conditioning control of the bus (20) currently in operation.

[0042] The bus operation information stored in the external server (11) may include information such as a vehicle ID, which is identification information of the bus (20) that is the vehicle to be controlled, the route of the bus route, the actual operating time and actual driving distance of the bus. In addition, the bus operation information may include information such as average speed, average fuel efficiency, driving power (discharge power), regenerative power (charge power), and vehicle body weight.

[0043] Bus operation information stored in the external server (11) can be checked by an operator through relevant software on a terminal such as a PC (12) connected to the external server. In this way, bus operation information related to the operation of the electric bus on the route where the electric bus is operated can be collected and accumulated on the external server, and additionally, the bus operation information can be checked through a PC connected to the external server.

[0044] Additionally, as described above, the external server (11) receives passenger boarding information of the bus (20), which is the vehicle to be controlled. This passenger boarding information is collected by the passenger information collection unit (22) from the vehicle and then transmitted to the controller (27) via the communication unit (21) and acquired and stored at the external server (11).

[0045] In an embodiment of the present invention, the passenger information collection unit (22) is for collecting information of passengers who have boarded the bus (20), and may be a transportation card terminal installed on the bus. Here, the transportation card terminal can acquire the passenger's boarding information when the passenger recognizes their transportation card upon boarding the bus, and transmits the passenger's boarding information from the bus (20) to the outside of the vehicle through its own communication means or the communication unit (21).

[0046] Here, the term "transportation card" includes both prepaid rechargeable cards and postpaid transportation cards provided in the form of credit cards. Furthermore, in an embodiment of the present invention, a device configuration capable of acquiring passenger boarding information by utilizing an Open API through a transportation card may be used.

[0047] In an embodiment of the present invention, an external server (11) collects and stores passenger boarding information transmitted from a bus (20) as described above, and utilizes the accumulated passenger boarding information for a bus traveling along a predetermined route at the same time every day as big data for air conditioning control of a bus passing through the same route at the same time.

[0048] In addition, in an embodiment of the present invention, an external server (11) receives passenger boarding location information from the bus (20), which is the vehicle to be controlled, and this passenger boarding location information is collected by the boarding location information provider (23) in the vehicle and then transmitted through the communication unit (21) to be acquired and stored in the external server (11).

[0049] In an embodiment of the present invention, the passenger boarding location information is information regarding the location where a passenger is boarding inside the bus (20), and this can be obtained from the vehicle's ECAS information. That is, in an embodiment of the present invention, the boarding location information providing unit (23) may be an Electronically Controlled Air Suspension (hereinafter referred to as 'ECAS').

[0050] The above ECAS refers to an electronically controlled air suspension system, which primarily implements and provides functions to adjust the tilt of the vehicle body or the ride height as needed in large commercial vehicles such as buses (20). Generally, the ECAS of a bus (20) includes a level sensor that detects the ride height at different positions on the vehicle body, and it is known that the level sensor of the ECAS measures the ride height using the height of an air spring.

[0051] In this way, ECAS collects garage information by vehicle body location in real time, and by using ECAS information including such garage information by vehicle body location, information on the passenger boarding location inside the bus can be obtained. In an embodiment of the present invention, the passenger boarding location information inside the bus is information indicating the location where a passenger is currently boarding inside the bus (20) based on the vehicle body's front-rear direction (longitudinal direction).

[0052] In the present invention, the boarding location information providing unit (23) may further include a smart device of a passenger boarding the bus (20) in addition to the ECAS described above. A smart device, such as a smartphone carried by a passenger, can provide location information of the passenger who is the user of the smart device through a built-in GPS sensor (GPS receiver).

[0053] In this way, passenger boarding location information collected through ECAS or smart devices can be input into the vehicle's controller (27) and transmitted through the communication unit (21) to be collected by an external server (11).

[0054] As described above, collecting passenger boarding location information through a smart device is possible only when the user of the smart device consents to the collection of personal information through an application pre-installed on the smart device to enable the exchange of information between the smart device and an external server, and passenger boarding location information within the bus via the smart device can be provided only to users of the smart device who have consented to the collection of personal information.

[0055] If a passenger does not carry a smart device such as a smartphone or has not consented to the collection of personal information, the passenger's boarding location information within the bus may be collected based on the above ECAS information.

[0056] In an embodiment of the present invention, an external server (11) analyzes big data collected in real-time or accumulated during bus operation, such as bus operation information, passenger boarding information, passenger body temperature information, and passenger boarding location information, as well as preset data, to estimate the bus interior temperature by bus location and by operation time on the corresponding bus route. At this time, model equations or maps may be used to estimate the bus interior temperature using big data and preset data. Additionally, the passenger body temperature information in the big data may be the average body temperature of the accumulated passenger body temperature information.

[0057] Additionally, the external server (11) determines the basic air conditioning setting values ​​for each bus route and operating time based on the estimated bus interior temperature, and then transmits the determined basic air conditioning setting values ​​to the bus (20), which is the vehicle to be controlled. Model equations or maps may be used to estimate the basic air conditioning setting values ​​from the bus interior temperature.

[0058] At this time, the basic air conditioning setting value from the external server (11) may be a value determined based on information received and accumulated from buses (20) currently in operation, and may be a value classified by bus route and by operating time. More specifically, the basic air conditioning setting value may be a value classified by section (location) along the bus route and by operating time.

[0059] In addition, in an embodiment of the present invention, when an external server (11) transmits a basic air conditioning setting value corresponding to the bus route and operating time to each bus (20) in operation, information corresponding to the bus route and operating time, namely, passenger body temperature (which may be average body temperature), passenger boarding location inside the bus, and ambient temperature and humidity information, may be transmitted together.

[0060] Thus, the controller (air conditioning controller) (27) of the bus (20) can receive the basic air conditioning setting value and the information transmitted by the external server (11) through the communication unit (21), and the received basic air conditioning setting value is used as the basic control value and target value for controlling the air conditioning device (28) to perform air conditioning control inside the bus.

[0061] The above basic air conditioning setting value may include an air conditioning target temperature to be set in the controller (27) of the bus (20) which is the vehicle to be controlled. In addition, the above basic air conditioning setting value may further include duct opening and closing commands by location in the bus (20) which is the vehicle to be controlled.

[0062] Meanwhile, the vehicle controller (27) can collect body temperature data of current passengers in the bus detected by the body temperature measuring unit (24), real-time ambient temperature information detected by the ambient temperature sensor (25), real-time humidity information detected by the humidity sensor (26), and real-time passenger boarding location information in the bus.

[0063] Here, the body temperature measuring unit (24) may be a non-contact thermometer installed inside the bus (20). However, when a non-contact thermometer is used, in order to minimize boarding delays, the body temperature may be measured by the non-contact thermometer when the passenger tags the transportation card at the transportation card terminal.

[0064] In addition, a smart device capable of measuring the user's body temperature may be used as a body temperature measuring unit (24). In this case, a wearable device such as a smart watch or smart band that can measure the user's body temperature through a built-in sensor while the user is wearing it and wirelessly transmit the measured body temperature in real time may be used.

[0065] The above-mentioned measured body temperature can be transmitted to a smart device, such as a smartphone connected to a smart watch or smart band, and then transmitted and input to a controller (27) through a communication unit (21) from the smart device.

[0066] In addition, smartwatches or smart bands may be used to collect passenger body temperature information only for passengers who have consented to the collection of personal information, and for passengers who have not consented to the collection of personal information, non-contact thermometers installed in the bus may be used.

[0067] In an embodiment of the present invention, the controller (27) receives a basic air conditioning setting value for the same bus route and time period from an external server (11), and corrects the received basic air conditioning setting value based on real-time information, such as passenger information and environmental information, collected from the actual bus (20). Here, the real-time passenger information includes the body temperature information of the passengers inside the bus measured by the body temperature measuring unit (24) and the boarding location information of the passengers inside the bus collected by the boarding location information providing unit (23). Additionally, the real-time environmental information includes the current ambient temperature and humidity detected by sensors (25, 26).

[0068] In this way, the controller (27) of the actual bus (20) corrects the basic air conditioning setting value provided by the external server (11) based on real-time information collected from the bus, such as the body temperature information of passengers inside the bus, boarding location information, and ambient temperature and humidity information, and then controls the operation of the air conditioning device (28) inside the bus using the corrected air conditioning setting value.

[0069] That is, an external server (11) utilizes and analyzes big data information collected for buses (20) operating on the same route and at the same time to determine basic air conditioning setting values ​​for each bus route and time of operation, and then transmits the basic air conditioning setting values ​​for the same bus route and time of operation among the basic air conditioning setting values ​​for each bus route and time of operation to the bus (20) that is actually in operation. Then, the controller (27) of the bus (20) finely adjusts the basic air conditioning setting values ​​to match the actual bus conditions based on real-time information collected from the bus, and then the vehicle's air conditioning control is performed according to the adjusted air conditioning setting values, thereby enabling optimal vehicle air conditioning that reflects the real-time conditions inside the actual bus.

[0070] According to the present invention, the vehicle's air conditioning system can be actively controlled by utilizing the body temperature of passengers actually boarding the bus, information on the passenger's boarding location within the bus, and temperature and humidity information. This allows for a more comfortable indoor environment to be provided to passengers and enables the expectation of improved energy efficiency in eco-friendly vehicles such as electric buses or hydrogen electric buses. Additionally, as the body temperature of passengers boarding the bus can be measured in the post-COVID era, there is an advantage in being able to identify suspected infected patients before they board the bus.

[0071] FIGS. 2 and FIGS. 3 are flowcharts illustrating an air conditioning control process according to an embodiment of the present invention. FIGS. 2 and FIGS. 3 illustrate a process in which air conditioning control is performed by a controller (27) of a vehicle that receives a basic air conditioning setting value from an external server (11).

[0072] First, a passenger boards the bus (20) (S1). At this time, the passenger boarding the bus tags their transportation card to the transportation card terminal inside the bus to pay the bus fare. As the passenger's transportation card is recognized by the transportation card terminal, the bus fare is paid and the passenger's boarding status is recognized.

[0073] Additionally, when a passenger tags a transportation card at a transportation card terminal, the passenger's body temperature can be measured by a body temperature measuring unit (24), for example, by a non-contact thermometer installed around the transportation card terminal. In addition, the passenger's body temperature measured by the non-contact thermometer is input into and collected by the vehicle's controller (27). At this time, the body temperature information measured by the non-contact thermometer can be collected by the controller only for passengers who have not consented to the collection of personal information (S2).

[0074] If a passenger wears a wearable device such as a smart band or smart watch, the passenger's body temperature information, measured by a sensor of the wearable device which is a separate body temperature measuring unit, can be transmitted and input to the vehicle's controller through a smart device such as a smartphone, only for passengers who have previously consented to the collection of personal information through an application installed on a smart device such as a smartphone.

[0075] Additionally, while the bus (20) is in operation, passenger boarding information of the bus, such as the number of passengers on board, can be collected through a transportation card terminal used as a passenger information collection unit (22). Passenger boarding information, such as the number of passengers on the bus, is input from the transportation card terminal to the controller (27), and then the passenger boarding information, along with body temperature information, is transmitted from the controller to an external server (11) through a communication unit (21).

[0076] Additionally, while the bus (20) is in operation, information regarding the passenger boarding location within the bus can be collected through the boarding location information provider (23) (S3), and at this time, ECAS can be used as the boarding location information provider. That is, the vehicle's ECAS information is input into the controller (27), and the controller estimates the passenger boarding location within the bus from the input ECAS information. At this time, the boarding location within the bus can be estimated and used from the ECAS information only for passengers within the bus who have not consented to the collection of personal information.

[0077] In addition, for passengers who have consented in advance to the collection of personal information, location information of a smart device, such as a smartphone, can be input into the controller (27), and at this time, the controller can estimate and obtain the passenger's boarding location within the bus by utilizing the location information of the smart device. Here, the location information of the smart device is the passenger's boarding location information within the bus, and the boarding location information of the passenger who is the user of the smart device can be provided through a GPS sensor embedded in the smart device, such as a smartphone, that the passenger is carrying.

[0078] As described above, passenger body temperature information, boarding information, and boarding location information are input from a smart device to a vehicle controller (27) responsible for air conditioning control. At this time, the passenger body temperature information and boarding location information from the smart device can be transmitted and input to the vehicle controller (27) via a mobile communication network and a communication unit (21). Alternatively, the information can be input to the controller (27) via the communication unit (21) using a communication method such as Bluetooth from the smart device.

[0079] Additionally, the controller (27) receives the ambient temperature detected by the ambient temperature sensor (25) and the humidity detected by the humidity sensor (26) (S4), and transmits the real-time ambient temperature and humidity information detected by the sensors to an external server (11) through the communication unit (21).

[0080] In addition, the controller (27) transmits the real-time information collected as described above to an external server (11), while receiving a basic air conditioning setting value from the external server (11) (S5). Here, the basic air conditioning setting value may include the air conditioning target temperature of the bus (20), which is the vehicle to be controlled, and duct opening and closing commands for each location. Since the basic air conditioning setting value provided by the external server (11) to the bus (20) has been sufficiently explained above, further explanation will be omitted.

[0081] In addition, in an embodiment of the present invention, the external server (11) transmits the basic air conditioning setting value corresponding to the bus route and operating time to the bus (20) in operation as described above, and at the same time transmits the passenger body temperature, passenger boarding location inside the bus, and ambient temperature and humidity information corresponding to the bus route and operating time.

[0082] Next, the controller (27) compares the big data information received from the external server (11) as described above—namely, the passenger body temperature, the passenger boarding location inside the bus, and the ambient temperature and humidity information—with the information acquired in real time within the bus (20) (S7).

[0083] That is, the passenger body temperature (which may be an average body temperature value), passenger boarding location inside the bus, ambient temperature, and humidity received from an external server (11) are compared with the current passenger body temperature (which may be an average value of all passengers), passenger boarding location inside the bus, ambient temperature, and humidity acquired in real time by the body temperature measuring unit (24), boarding location information providing unit (23), ambient temperature sensor (25), and humidity sensor (26) in the bus (20).

[0084] Here, the passenger body temperature (which may be an average body temperature value), passenger boarding location inside the bus, ambient temperature, and humidity received from the external server (11) become setting values ​​that are set for air conditioning control in the controller (27) of the bus (20).

[0085] At this time, when comparing the setting value of the controller (27) with the value acquired in real time, if the difference is greater than a certain level, for example, if there is a difference greater than the setting value in at least one of the items such as passenger body temperature, passenger boarding location in the bus, ambient temperature and humidity, the controller (27) enters a step of correcting the basic air conditioning setting value (S9).

[0086] On the other hand, if there is no difference between the values ​​being compared beyond a certain level, the controller (27) uses the basic air conditioning setting value to control the air conditioning device (28) without correction (S8). That is, the controller (27) controls the air conditioning device (28) of the bus (20) by using the basic air conditioning setting value as a control value and a target value, and controls the air conditioning device (28) based on the air conditioning target temperature corresponding to the basic air conditioning setting value and the duct opening / closing command for each location within the bus.

[0087] Meanwhile, when entering the step of correcting the basic air conditioning setting values, the controller (27) compares the air conditioning target temperature among the basic air conditioning setting values ​​with the setting temperature set in the current bus (20) (S10), and if the air conditioning target temperature is higher than the setting temperature, it makes a change to lower the air conditioning target temperature by a predetermined amount, for example, 1°C (downward correction) (S11). On the other hand, if the air conditioning target temperature is lower than the setting temperature, it makes a change to raise the air conditioning target temperature by the aforementioned predetermined amount (e.g., 1°C) (upward correction) (S12).

[0088] Here, the target climate control temperature refers to the interior temperature optimized based on the number and distribution of passengers inside the vehicle, while the set temperature is the interior temperature automatically set based on big data. Although the basic set temperature is determined as the optimal temperature based on big data, the number of passengers and their distribution inside the vehicle are subject to a high probability of variables; therefore, the target climate control temperature can be reset based on the number and distribution of passengers via an Open API / ECAS system.

[0089] Afterwards, the controller (27) controls the operation of the air conditioning device (28) so that the bus interior temperature can be maintained at the changed air conditioning target temperature (S13).

[0090] Additionally, the controller (27) checks the number of passengers in each pre-partitioned space of the bus interior from the passenger boarding location information in the bus obtained by the boarding location information provider, and compares the number of passengers in each space with each other, and if there is a difference of more than a preset number in the number of passengers in each space, it determines that a temperature difference of more than a certain level occurs in each location of the bus interior (S14).

[0091] In this way, when it is determined that a temperature difference of a certain level or more has occurred at each location within the bus interior, the controller (27) corrects the duct opening / closing command for each location among the basic air conditioning setting values ​​transmitted from the external server (11) to change and adjust the duct opening / closing amount (duct air volume) at each location within the bus interior by taking into account the difference in the number of passengers (S15).

[0092] At this time, the duct opening / closing command for each location, which is corrected and output by the controller (27), is determined as a value that enables duct opening / closing control (duct airflow control for each location) to be performed, which can reduce the temperature difference between the space where a certain number of passengers or more are gathered in the bus interior (number of passengers) and the temperature of other spaces where they are not (number of passengers).

[0093] Accordingly, the operation of the actuator of the duct opening / closing device for each location in the bus interior, which is part of the configuration of the air conditioning device (28), can be controlled according to the corrected duct opening / closing command output from the controller, and the amount of duct opening / closing for each location in the bus interior can be changed according to the command. Ultimately, through this control of the amount of duct opening / closing, more hot or cold air can be discharged to locations in the bus interior where passengers are relatively more gathered in a specific space, thereby reducing the temperature difference in the bus interior.

[0094] In a typical bus, the airflow of the duct at each indoor location is controlled in multiple stages as the operation of the actuator of the opening and closing device is controlled. The duct opening and closing command output by the controller (27) can be a command value for controlling the operation of the actuator of the duct opening and closing device at each location among the multiple stages, which is determined based on the passenger boarding location information within the bus.

[0095] If it is determined in step S14 that no temperature difference of more than a certain level occurs at each location, the controller (27) maintains the current duct opening / closing amount (duct airflow) (S16).

[0097] Although embodiments of the present invention have been described in detail above, the scope of the present invention is not limited thereto, and various modifications and improvements by those skilled in the art using the basic concept of the present invention as defined in the following claims are also included within the scope of the present invention. Explanation of the symbols

[0099] 10: Bus Operation Management System 11 : External server 12 : PC 20 : Bus 21 : Communications Department 22: Passenger Information Collection Department 23 : Boarding Location Information Provider 24: Body temperature measurement unit 25: Ambient temperature sensor 26: Humidity sensor 27 : Controller 28: Air conditioning system

Claims

Claim 1 A passenger information collection unit that acquires and provides passenger boarding information from a bus; a body temperature measurement unit that measures and provides the body temperature of passengers on board the bus; a boarding location information provision unit that acquires and provides passenger boarding location information where passengers are on board inside the bus; a sensor that detects and provides environmental information for air conditioning control; and an external server that collects and stores information transmitted from buses in operation, determines basic air conditioning setting values ​​for each bus route and operating time based on the stored information and bus operation information, and transmits big data information including the stored information and basic air conditioning setting values ​​to buses in operation. A bus air conditioning control device comprising a controller that transmits real-time information acquired by the above-mentioned passenger information collection unit, body temperature measurement unit, boarding location information provision unit, and sensor to the above-mentioned external server through a bus internal communication unit, receives big data information corresponding to the bus route and operating time from the external server through the above-mentioned communication unit, and performs air conditioning control of the bus based on the above-mentioned real-time information and the above-mentioned big data information, wherein the above-mentioned external server estimates the bus indoor temperature by route location and operating time based on bus passenger boarding information, passenger body temperature information, passenger boarding location information, environmental information, and bus operating information received and accumulated from buses in operation, and determines the above-mentioned basic air conditioning setting value from the above-mentioned bus indoor temperature. Claim 2 An air conditioning control device for a bus according to claim 1, wherein the passenger information collection unit is a transportation card terminal installed in the bus. Claim 3 An air conditioning control device for a bus according to claim 1, wherein the body temperature measuring unit comprises a non-contact thermometer configured to measure the body temperature of a passenger tagging a transportation card at a transportation card terminal installed in the bus. Claim 4 An air conditioning control device for a bus according to claim 3, wherein the body temperature measuring unit further includes a wearable device that measures the user's body temperature while being worn by the user and wirelessly transmits it to the controller. Claim 5 An air conditioning control device for a bus according to claim 1, wherein the boarding position information providing unit is an electronically controlled air suspension, and the passenger boarding position information is obtained from vehicle body position-specific garage information detected by a sensor of the electronically controlled air suspension. Claim 6 A bus air conditioning control device according to claim 5, wherein the boarding location information providing unit further includes a smart device that wirelessly transmits user location information to the controller. Claim 7 An air conditioning control device for a bus according to claim 1, wherein the environmental information is ambient temperature and humidity. Claim 8 delete Claim 9 An air conditioning control device for a bus according to claim 1, characterized in that the basic air conditioning setting value includes air conditioning target temperatures classified by location along the bus route and by operating time, and duct opening / closing commands by location within the bus. Claim 10 An air conditioning control device for a bus according to claim 1, wherein the controller compares the passenger body temperature measured by the body temperature measuring unit, the passenger boarding location inside the bus acquired by the boarding location information providing unit, and the environmental information detected by the sensor with the passenger body temperature, passenger boarding location, and environmental information of big data information received from the external server, and if there is a difference of a certain level or more in at least one of the items being compared, performs correction of the basic air conditioning setting value, and controls the operation of the air conditioning device based on the corrected basic air conditioning setting value. Claim 11 An air conditioning control device for a bus according to claim 10, wherein the controller, when correcting the basic air conditioning setting value, compares the air conditioning target temperature among the basic air conditioning setting values ​​corresponding to the bus route and operating time with the setting temperature set in the bus, and if the air conditioning target temperature is higher than the setting temperature, lowers the air conditioning target temperature by a predetermined temperature, and if the air conditioning target temperature is lower than the setting temperature, raises the air conditioning target temperature by the predetermined temperature. Claim 12 An air conditioning control device for a bus according to claim 10, wherein the controller, when correcting the basic air conditioning setting value, checks the number of passengers in a pre-partitioned space inside the bus from the passenger boarding location information inside the bus obtained by the boarding location information providing unit, compares the number of passengers per space with each other to check whether there is a difference of more than a preset number in the number of passengers per space, and if there is a difference of more than a preset number in the number of passengers per space, corrects the duct opening / closing command for each location inside the bus among the basic air conditioning setting values ​​based on the difference in the number of passengers.

Images