KR100757149B1 - Full automatic temperature control system using wireless data communications - Google Patents

Abstract

An automatic temperature control system is provided to offer optimal environment for a driver, and to realize independent sensor system without using a power supply of a vehicle by using a wireless near-distance data communication method for communications between a sensor and a controller. An automatic temperature control system comprises a sensor group(1,3,5), a wireless communication module of the sensor group, a wireless communication module of a controller, and a controller(7). The sensor group is installed in a vehicle, and at least one sensor writing sensor information by sensing at least one environment conditions selected from temperature, solar intensity, humidity and contamination degree. The wireless communication module of the sensor group transmits the sensor information received from the sensor or the wireless communication module. The wireless communication module of the controller receives the sensor information from the wireless communication module of the sensor. The controller receives the sensor information from the wireless communication module of the controller, and writes an environment control signal, depending on previously stored control conditions.

Description

Full Automatic Temperature Control System Using Wireless Data Communication in Vehicles

1 is a configuration diagram schematically showing a conventional vehicle interior air circulation diagram.

Figure 2 is a simplified illustration of the position and type of a sensor mounted on a conventional vehicle.

Figure 3 is a block diagram showing the configuration of a fully automatic temperature control system according to an embodiment of the present invention.

4 is an exemplary diagram for describing communication between a sensor and a controller of FIG. 3.

5A is an exemplary diagram illustrating an installation example of a temperature sensor group.

FIG. 5B shows an exemplary air conditioning system controlled by the controller of FIG. 5A.

6 is a flowchart illustrating a control operation process of FIGS. 5A and 5B.

In particular, an object of the present invention is to provide a plurality of sensor groups consisting of one or more sensors to enable instantaneous and active response to changes in the vehicle's indoor / outdoor environment. The present invention relates to a fully automatic temperature control system using wireless data communication of a vehicle in which communication between a sensor group and a control device is performed through wireless data communication.

Cars until recently have remained at the level of providing people with only convenient means of transportation. However, in recent years, the differential car has become a living object, which serves as a means of transportation and provides an optimum riding environment and provides comfort and convenience to the destination. Since the prior art vehicles have prioritized the movement to the destination, efforts have been mainly made to maintain and develop the performance of the basic components related to the movement. On the other hand, recent automobiles are based on movement to a destination, and various systems have been adopted and provided to the user in order to provide the best environment for the user during the time required for the movement, that is, the time the user rides in the vehicle.

Such vehicle-mounted systems include a variety of acoustic systems, broadcast systems, navigation systems, fully automatic temperature control systems, seat control systems, and privacy protection systems. Unlike other systems of such vehicle-mounted systems, there is a system that is almost essential to all vehicles. That is the temperature control system. Depending on the vehicle, it is usually classified into manual, semi-automatic and fully automatic, and a system suitable for user's preference is adopted. However, due to the development of technology and low price, the use range of the semi-automatic or fully automatic temperature control system is extended to not only small passenger vehicles but also large cargo vehicles.

FIG. 1 schematically illustrates a conventional vehicle internal air circulation diagram, and FIG. 2 briefly illustrates a location and a type of a sensor mounted in a conventional vehicle. 1 and 2 are for the sake of clarity. It is to be understood that the exact location and exact name differ depending on the vehicle and the system.

Inside the vehicle, a plurality of air nozzles for venting and circulating air, cooled air, and air for heating, that is, vents are configured. The vent position is basically formed between the windshield of the vehicle and the interior space, the left side of the driver's seat, the right side of the driver's seat, between the driver's seat and the driver's seat, and the driver's seat and the passenger seat front floor. In addition, in the case of luxury cars, vents are formed in the ceiling portion and the trunk portion of the lower vehicle of the front seat and the auxiliary seat, and the air circulated through the vent passes through a filter to keep the environment inside the vehicle comfortable.

These vents provide manual control by the user, but are controlled by the system in fully automatic temperature control systems. That is, when the user sets a condition such as temperature, the vent discharge temperature, wind direction, air volume, air / outdoor / heating start / cooling start / defrost / humidity are automatically adjusted according to the condition. In addition, if the automatic temperature control system includes a seat with a built-in heating wire is to control the operation of the heating wire. In other words, by adopting a heating wire in the seat is seated in the cooled seat in winter to minimize the inconvenience that the user can feel by the control of the automatic temperature control system.

Figure 2 schematically shows the type and location of the sensor installed in the vehicle for the operation of such a thermostat system. FIG. 2 illustrates an outside air temperature sensor installed at an outside air inlet around a radiator, an insolation sensor installed at a larynx of a vehicle interior, an indoor temperature sensor installed at a vehicle interior, and a humidity sensor. Depending on the system, sensors other than the sensor shown in FIG. 2 may be further installed. However, as shown in FIG. 2, these various sensors are installed in one or two limited locations for each type. Reasons for the limited mounting position of the sensor include the cost of the installation of the sensor, the construction of a wired line for the communication between the sensor and the system controller, and the securing of a temporary space. That is, as the type and number of sensors increase, the installation length of the wired communication path increases, and the circuit of the system becomes complicated.

Such a problem of limiting the installation of the sensor leads to a problem of local and simple circulating temperature control, which makes it difficult to maintain a comfortable indoor environment by causing a problem of not properly responding to a change in the indoor environment of the vehicle.

Accordingly, an object of the present invention is to provide a plurality of sensor groups consisting of one or more sensors to enable instantaneous and active response to changes in the vehicle's indoor / outdoor environment, as well as wireless data communication between the sensors, sensor groups, and control devices. It is to provide a fully automatic temperature control system using a wireless data communication of the vehicle to perform through.

Fully automatic temperature control system according to the present invention for achieving the above object is a sensor group having at least one sensor for generating sensor information by sensing at least one environmental condition of temperature, insolation, humidity and pollution; A sensor wireless communication module for transmitting sensor information from the sensor or the sensor group; A controller wireless communication module for receiving constant sensor information from the sensor wireless communication module; And a controller configured to receive the sensor information from the controller wireless communication module and generate an environmental control signal according to a pre-stored control condition.

The wireless communication module is characterized by using at least one of the communication scheme of Bluetooth, ZigBee and radio recognition (RFID).

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The sensor group is characterized by having at least one sensor for detecting the same of the environmental conditions.

The sensor information may further include identifier information of the sensor or the sensor group.

The vehicle further includes at least one of a heating device, an air conditioner, a humidity control device, a wind direction control device, a wind volume control device, an insolation control device, a seat temperature control device, and an internal and external air control device that operate according to the control of the controller. It is characterized by.

The controller is characterized in that the engine control unit of the vehicle.

Other features and operations of the present invention in addition to the above objects will become apparent from the detailed description of the embodiments with reference to the accompanying drawings.

Hereinafter, embodiments of the present invention will be described in detail with reference to the accompanying drawings.

3 is a view showing the configuration of a fully automatic temperature control system according to an embodiment of the present invention.

Referring to FIG. 3, a fully automatic temperature control system according to the present invention includes a sensor group 1, 3, 5, a controller 7 and an adjusting device 9.

The sensor groups 1, 3, and 5 are installed at respective parts of the vehicle at predetermined intervals, and generate sensor information Sen_da by detecting information of the installed part or the surrounding environment. The sensor groups 1, 3, and 5 transmit the created sensor information Sen_da to the controller 7. To this end, the sensor groups 1, 3, 5 are composed of one independent sensor or sensor groups 1, 3, 5 in which one or more sensors are grouped. That is, when sensing information such as environmental conditions, for example, temperature, insolation, humidity or pollution degree, only one sensor is installed when sufficient measurement values can be obtained even with only one sensor among the environmental conditions. On the other hand, when it is necessary to measure the temperature of several places, such as the vehicle indoor temperature, the sensor group (1, 3, 5) consisting of two or more temperature sensors are configured, and installed in the required position of the vehicle to acquire the sensor information. Here, the sensor information Sen_da is composed of two pieces of information that are largely divided. One is the data of the measurement of the environmental conditions detected by the sensor, and the other is identifier information (ID) that the controller 7 can identify the sensor, such as MAC ID information. This will be described in more detail with reference to FIG. 4. To this end, each sensor or at least one sensor belonging to the same sensor group (1, 3, 5) is provided with a sensor wireless communication module capable of communicating with the controller wireless communication module installed in the controller (7).

The controller 7 receives the sensor information Sen_da from the sensor groups 1, 3, 5, and creates a control signal con_si for controlling the regulating device 9. In addition, the controller 7 transmits the prepared control signal con_si to the regulating device 9. The controller 7 is connected to the controller wireless communication module for receiving sensor information Sen_da from the sensor or sensor group 1, 3, 5.

The adjusting device 9 performs an operation for adjusting the environmental conditions by the control signal con_si from the controller 9. For this purpose, the adjusting device 9 constitutes a wired or wireless network with the controller 9. In this case, the wireless network may use a scheme such as Bluetooth, Zigbee, or RFID, and the wired network may use can communication. As the control device 9, as shown in Figure 3, the heating device 11, the cooling device 12, the humidity control device 13, the wind direction control device 14, air volume control device 15, solar radiation control Examples may include devices such as the device 16, the seat temperature controller 17, and the indoor and outdoor air conditioners 18. In addition, the device may be added to the vehicle for controlling the indoor environment of the vehicle.

3, two or more sensors 1-1 to xy form one sensor group 1, 3, and 5, and one or more sensor groups 1, 3, and 5 are configured. An example is shown in FIG. 3. For example, when the first sensor group 1 serves to sense a vehicle interior temperature, the first sensor 1-1 of the first sensor group 1 senses a temperature of a left vent of the driver's seat, The second sensor 1-2 is the temperature of the right side vent of the passenger seat, the third sensor 1-3 is the ambient temperature of the vent between the driver's seat and the driver's seat, the fourth sensor 1-4 is the temperature around the bottom of the driver's seat, 5 Sensor (1-5) is the temperature around the bottom of the passenger seat, the sixth sensor is the temperature near the rear seat of the driver's seat, the seventh sensor (1-7) is the temperature near the rear seat of the passenger seat, and the eighth sensor (1-8) The sensor senses the room temperature near the windshield of the vehicle, thereby calculating and accurate data distribution of the vehicle interior. When the data is calculated, the main sensor of each sensor or sensor group generates sensor information Sen_da using the calculated data and transmits the sensor information Sen_da to the controller 7.

4 is an exemplary diagram for describing communication between a sensor and a controller of FIG. 3, and illustrates a configuration of one sensor and a controller.

Referring to FIG. 4, the sensor 20 includes a sensing module 24 and a sensor wireless communication module 26, and the controller 22 includes a controller wireless communication module 28, a control module 30, and a control communication module. (32) is provided.

The sensor 20 detects a specified environmental condition among the above-described environmental conditions, creates sensor information Sen_da, and transmits the sensor information Sen_da to the controller 22 by wireless communication. To this end, the sensor 20 may be divided into a sensing module 24 for detecting sensor conditions (Sen_da) and a sensor wireless communication module (26) for transmitting the sensor information (Sen_da). The sensing module 24 detects environmental conditions such as temperature, humidity, wind speed, and solar radiation, and the controller 22 stores and maintains identifier information ID for identifying the sensor 20 in a storage area. The sensor wireless communication module 26 forms a communication channel with the controller 22 to transmit the sensor information Sen_da in which the identifier information ID and the environmental condition data are recorded to the controller 22. To this end, the sensor wireless communication module 26 preferably uses a short-range data communication method. For example, the sensor wireless communication module 26 may use a method such as Bluetooth, ZigBee, or RFID. In the case of Bluetooth, since it is possible to recognize up to seven lower slave devices, it is preferable to transmit information by using a multi-stage configuration. Since Zigbee can recognize up to 100 lower slave devices, it is preferable to use it when installing a large number of sensors. In addition, when using ZigBee, the power replacement cycle of the sensor is long, thereby providing an advantage of minimizing user inconvenience. In addition, a large number of sensors can be installed at a low cost of radio recognition (RFID), and can be used by dividing the passive type and the active type according to the needs, so that the system can be configured by selecting one of the above wireless communication methods according to the use environment. It is preferable.

In addition, the controller receives the controller wireless communication module 28 for communicating with the sensor 20, the control module 30 for receiving the sensor information Sen_da to create the control signal con_si, and adjusts the created control signal con_si. It can be divided into a control communication module 32 for transmitting to the device.

The controller wireless communication module 28 is configured using a wireless device capable of communicating with the sensor wireless communication module 26, and receives sensor information Sen_da from the sensor 20 and transmits it to the control module 30. do.

The control module 30 analyzes the received sensor information Sen_da and creates a control signal con_si by matching the analysis result with a program or a control signal generation table stored in the storage area. In addition, the control module 30 transmits the created control signal con_si to the control communication module 32. The control module 30 may be implemented as a separate microcomputer, but may be implemented using an engine control unit (ECU).

The control communication module 32 is for transmitting the control signal con_si from the control module 30 to the adjusting device. As mentioned above, the control communication module 32 may be wired communication or wireless communication. However, when using wireless communication, the controller wireless communication module 28 may perform the operation of the control communication module 32 without separately configuring the control communication module 32.

Figure 5a is an exemplary view showing an example of the installation of the temperature sensor group, Figure 5b shows an air conditioning system controlled by the controller of Figure 5a.

5A and 5B, it is possible to install a temperature sensor 37 in various places as shown in FIG. 5A in order to adjust the room temperature of the vehicle 35. In FIG. 5A, the first temperature sensor 37a near the driver's front glass, the second temperature sensor 37b near the bottom of the driver's seat, the third temperature sensor 37c near the driver, and the fourth temperature sensor near the rear seating position ( 37d) and the fifth temperature sensor 37e at the rear passenger leg position. The temperature sensors 37 disposed at the respective positions periodically detect the temperature of the installed surrounding room, thereby creating sensor information Sen_da. In addition, the sensor information (Sen_da) is sent to the controller 39 individually, or the main sensor, for example, the first temperature sensor (37a) is sensor information (Sen_da) from each of the sensors (37b, 37c, 37d, 37e) ) Are collected and delivered to the controller 39.

The controller 39 receives and analyzes the sensor information Sen_da and prepares a control signal con_si accordingly. For example, a place other than the driver's floor maintains a temperature range set by the driver, and when the driver's floor is higher than the set temperature range, the controller 39 causes the air to be cooled through a vent near the driver's floor. The control signal con_si is generated and transmitted to the wind direction control actuator and the driver's seat bottom vent switch 47. Accordingly, cold air supplied from the cooler (not shown) is blown by the blower motor 51 and passed through the filter. On the other hand, the driver's seat bottom vent switch 47 maintains an open state so that cool air supplied through the filter can be sent to the driver's seat in response to the control signal.

Similarly, when information from the humidity sensor is generated, the dehumidifying vent switch 41 and the dehumidifier (not shown) operate, and according to the information from the respective sensors, the upper vent switch 43 or the defrost vent vent switch 45 is It will work.

Through this, it is easy to detect the difference of local environmental conditions in the vehicle interior, and accordingly, it is very easy to adjust and uniformize the local environmental conditions. This makes it possible to significantly increase the ride comfort and convenience of the user.

6 is a flowchart illustrating a control operation process of FIGS. 5A and 5B.

Referring to FIG. 6, first, in step S10, an automatic temperature control mode is set by a user and is recognized by a controller. In step S10, the user inputs a temperature condition, and if already entered, the automatic temperature control mode is executed by the previously inputted information.

In step S20, the controller requests sensor information Sen_da from the sensors. Accordingly, in step S30, each sensor detects an environmental condition, creates sensor information Sen_da, and transfers it to a controller. In addition, the sensors periodically detect the environmental condition until the command to stop the sensing operation from the controller to create the sensor information (Sen_da), and delivers the information to the controller.

In step S40 the controller receives the sensor information (Sen_da) from the sensors, and using the delimiter information to determine whether the received sensor information (Sen_da) is what information at which position. That is, in FIG. 6, the controller recognizes the temperature information at which position the information transmitted from the sensor is.

In step S50, the controller compares the temperature information included in the sensor information Sen_da with the temperature condition recorded in the set condition.

If it is determined that the condition satisfies the temperature condition, the controller controls the temperature control device to drive according to the set condition is satisfied in step S70. That is, while controlling the supply amount of cold or warm air supplied to the position where the sensor information is transmitted, the control unit stops the operation of the cooler or the heater.

On the other hand, when the determination result is out of the temperature condition, in step S80, the controller drives or maintains the operation of the heater or cooling to satisfy the temperature condition.

In addition, by receiving the sensor information or a certain time sea S50, S60 and S70 stages to maintain the optimal environment to the driver.

The fully automatic temperature control system according to the present invention obtains the driver's usage environment information through various and many kinds of sensors, and thus, it is possible to provide an optimal environment to the driver by enabling detailed control of the adjusting device.

In addition, the automatic temperature control system according to the present invention by performing the communication between the sensor and the controller by a short-range data communication method, the hypothesis of the communication path for the communication is not necessary, the installation cost is reduced, easy installation, maintenance Easy and fast communication is possible.

In addition, the automatic temperature control system according to the present invention can implement an independent sensor system without using the vehicle's power by using a short-range data communication method of the sensor communication, and minimizes power consumption when the sensor is not driven. It is possible to minimize user inconvenience by lengthening the power replacement cycle of the sensor.

Lastly, the automatic temperature control system according to the present invention can be easily adapted to an independent sensor or a group sensor according to the implementation method of the system, and thus can be easily controlled and used even when a large number of sensors are mounted. To provide.

Those skilled in the art will understand from the above description that various applications and applications are possible through the embodiments of the present invention. Therefore, the technical idea of the present invention should not be limited by the detailed description of the present invention, but by the claims.

Claims (7)

A sensor group installed in the vehicle and having at least one sensor configured to generate at least one sensor information by sensing at least one environmental condition among temperature, insolation, humidity and pollution; A sensor wireless communication module for transmitting sensor information from the sensor or the sensor group; A controller wireless communication module for receiving constant sensor information from the sensor wireless communication module; And a controller configured to receive the sensor information from the controller wireless communication module and generate an environmental control signal according to a pre-stored control condition. The method of claim 1, The wireless communication module is an automatic temperature control system, characterized in that using a communication method of at least one of Bluetooth, ZigBee and radio recognition (RFID). delete The method of claim 1, The sensor group is provided with at least one sensor for sensing the same of the environmental conditions. The method of claim 4, wherein The sensor information is an automatic temperature control system, characterized in that the identifier information of the sensor or the sensor group is further described. The method of claim 5, The vehicle further includes at least one of a heating device, an air conditioner, a humidity control device, a wind direction control device, a wind volume control device, an insolation control device, a seat temperature control device, and an internal and external air control device that operate according to the control of the controller. Automatic temperature control system, characterized in that. The method of claim 6, And the controller is an engine control unit of the vehicle.

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