JP2006118310A - Electrically operated curtain opening and closing device - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide an electrically operated curtain opening and closing device capable of giving comfortableness to the passengers of a vehicle. <P>SOLUTION: This electrically operated curtain opening and closing device comprises an electrically operated curtain installed along a window shield glass of the vehicle; a solar radiation forecast means capable of predicting the amount and direction of solar radiation to the motor vehicle; an electrically operated curtain opening and closing judging means capable of making an judgement on whether the electrically operated curtain is to be opened or closed in response to the state of solar radiation forecasted; and a control means for electrically operated curtain opening and closing device based on the result of the judgement made. <P>COPYRIGHT: (C)2006,JPO&NCIPI

Description

  The present invention relates to an electric curtain opening and closing device that opens and closes an electric curtain by predicting an approach direction of solar radiation entering a vehicle interior.

  When the vehicle travels a relatively long distance to the destination, if the direct sunlight on the vehicle continues, the temperature rise in the passenger compartment increases. For example, in the summer, the use of an air conditioner (cooling) becomes significant. It may be a waste of energy. Further, if the direct sunlight exposure to the vehicle occupant continues, the human body (skin) may be adversely affected by ultraviolet rays, sunstroke, heat stroke, and the like.

  Therefore, when searching for the route to the destination, calculate the intersection where the sunlight is dazzling and automatically control the sun visor before passing through the intersection, making it difficult for the driver to see the traffic light due to the dazzling sunlight An anti-glare device for a vehicle that prevents this has been devised (see Patent Document 1).

  Further, a navigation device has been devised that searches for a route that avoids direct sunlight as much as possible during travel (see Patent Document 2).

  Furthermore, a vehicle air conditioner is devised that includes a solar radiation detection device that enables more accurate detection of the solar radiation amount, and that allows a vehicle occupant to perform more comfortable air conditioning based on the detected solar radiation amount. (See Patent Document 3).

JP-A-8-156586 JP 2004-226199 A JP 2002-362129 A

  In the example of Patent Document 1, no consideration is given to preventing glare for passengers in the rear seat. Moreover, in the example of patent document 2, in the time zone when the sun in the daytime is near right above, roads that are shaded are limited, and it is almost difficult to avoid solar radiation continuously.

  Furthermore, in the example of Patent Document 3, the air conditioning is kept comfortable, but the solar radiation cannot be prevented. In addition, a device for detecting and measuring the amount of solar radiation such as a sensor is required, which causes an increase in vehicle cost.

  Against the background of the above problems, an object of the present invention is to provide an electric curtain opening / closing device that allows a passenger of a vehicle to spend comfortably.

Means for Solving the Problems and Effects of the Invention

  The present invention provides an electric curtain opening and closing device for solving the above-described problems. That is, according to claim 1, the electric curtain installed along the windshield glass of the vehicle, and the solar radiation condition predicting means for predicting the solar radiation condition including the presence / absence of the solar radiation to enter the vehicle and the direction of the solar radiation are predicted. An electric curtain opening / closing determining means for determining whether to open / close the electric curtain according to the solar radiation condition, and an electric curtain opening / closing control means for opening / closing the electric curtain based on the determined result Configured as an electric curtain opening and closing device.

  The present invention automatically calculates the direction of solar radiation to predict whether the vehicle is exposed to sunlight, and if so, the intensity of solar radiation and the direction from which the sunlight is applied. The above-described problems are solved by performing opening / closing control. With the above-described configuration, the driver or passenger can open and close the electric curtain without operating the electric curtain, and a comfortable in-vehicle environment can be provided to the vehicle occupant.

  According to claim 2, the electric curtain opening and closing device of the present invention includes position detecting means for detecting the position of the vehicle, and map data storage means for storing map data including information on buildings around the road, and solar radiation. The situation prediction means can be configured to predict the solar radiation situation based on the position of the vehicle and information on buildings around the road. With this configuration, it is possible to predict the intensity and direction of solar radiation depending on the surrounding environment of the parking area of the vehicle, and the electric curtain is automatically opened and closed without the driver or passengers operating the electric curtain. A comfortable cabin environment can be provided to the vehicle occupants.

  According to claim 3, the electric curtain opening and closing device of the present invention includes time data acquisition means for acquiring time data, and the solar radiation status prediction means is configured to predict the solar radiation status based on the acquired time data. Can do. Even if the position of the vehicle is the same, the solar radiation changes with time, so the curtain may be unnecessary depending on the time zone (for example, morning and evening). With this configuration, it is possible to control the opening and closing of the electric curtain with fine grain, so that direct sunlight can enter the passenger compartment and the temperature inside the vehicle rises, and the passengers of the vehicle do not feel uncomfortable due to glare. A comfortable in-vehicle environment can be provided.

  According to claim 4, the electric curtain opening and closing device of the present invention includes date data acquisition means for acquiring date data, and the solar radiation status prediction means is configured to predict the solar radiation status based on the acquired date data. Can do. Even if the vehicle position and time zone are the same, the solar radiation situation changes with the season (date). For example, when the season is midsummer, the electric curtain is automatically closed to control the sunlight from entering the vehicle and preventing the temperature inside the vehicle from rising. On the contrary, in the cold season, the electric curtain is fully opened to control the solar light to be taken into the passenger compartment to prevent the temperature in the passenger compartment from dropping. With this configuration, direct sunlight enters the passenger compartment and the temperature inside the vehicle rises or the sunlight is blocked to reduce the temperature inside the vehicle, and it is comfortable for the passengers of the vehicle without feeling uncomfortable due to glare. An in-car environment can be provided.

  According to claim 5, the electric curtain opening and closing device of the present invention includes a traveling direction detecting means for detecting the traveling direction of the vehicle, and the solar radiation condition predicting means predicts the solar radiation condition based on the detected traveling direction of the vehicle. Configuration can be taken. Even if the vehicle position and time zone are the same, the solar radiation situation changes with the direction of the vehicle (traveling direction). With this configuration, it is possible to predict the solar radiation situation according to the direction of the vehicle, and to control the opening and closing of the electric curtain accordingly, so that direct sunlight enters the passenger compartment and the temperature inside the car rises, and it is also dazzling A comfortable interior environment can be provided to the vehicle occupant without feeling uncomfortable.

  According to the sixth aspect of the present invention, the electric curtain opening and closing device of the present invention includes a weather determination unit that determines the weather around the vehicle, and the solar radiation state prediction unit is configured to predict the solar radiation state based on the determined weather. be able to. Even if the vehicle position, time zone, season (date), and vehicle traveling direction are the same, the solar radiation situation varies depending on the weather. With this configuration, it is possible to predict the solar radiation situation according to the weather, and to control the opening and closing of the electric curtain accordingly, and direct sunlight enters the passenger compartment and the temperature inside the car rises, and the discomfort caused by glare It is possible to provide a comfortable cabin environment for the vehicle occupant without worrying about it.

  According to claim 7, the electric curtain opening and closing device of the present invention includes a wiper operation detecting means for detecting the operation of the wiper of the vehicle, and the weather determining means is configured to determine the weather around the vehicle based on the operation of the wiper. Can be taken. When the wiper is operating, it can be determined that there is no rain or solar radiation. With this configuration, it is possible to predict the solar radiation situation based on the operation of the wiper, and to control the opening and closing of the electric curtain accordingly, so that direct sunlight enters the passenger compartment and the temperature inside the car rises, and it is also dazzling A comfortable interior environment can be provided to the vehicle occupant without feeling uncomfortable. Further, it is possible to realize the weather determination means without adding a new sensor or device, that is, without increasing the cost.

  According to claim 8, the electric curtain opening and closing device of the present invention includes receiving means for receiving weather information around the vehicle from an external device, and the weather determining means determines the weather around the vehicle based on the received weather information. A configuration for determination can be taken. For example, road information obtained from VICS (Vehicle Information and Communication System) includes weather information. This configuration predicts the solar radiation situation according to the received weather information, and direct sunlight enters the passenger compartment and the temperature inside the car rises, and there is no unpleasant feeling due to glare. It is possible to control the opening and closing of the vehicle and provide a comfortable interior environment for the vehicle occupant.

  By the way, when the vehicle navigation device is used as a part of the electric curtain opening / closing device of the present invention, the electric curtain opening / closing device of the present invention can be realized at low cost. This is because the vehicle navigation apparatus includes position detection means, map data storage means, time data acquisition means, date data acquisition means, travel direction detection means, and VICS receiver.

  The object of providing an electric curtain opening and closing device that allows a vehicle occupant to spend comfortably has been realized by an electric curtain opening and closing device that opens and closes the electric curtain according to the solar radiation situation on the vehicle.

  Hereinafter, an electric curtain opening and closing device according to an embodiment of the present invention will be described with reference to the drawings. FIG. 1 is an overall configuration diagram of an electric curtain opening / closing device. The electric curtain opening / closing device includes a navigation device 100, an electric curtain control device 101, an electric curtain sensor 102, an electric curtain 106, a wiper sensor 103, a shift position sensor 104, and a parking brake sensor 105. The navigation device 100 and the electric curtain control device 101, the electric curtain sensor 102, the wiper sensor 103, and the shift position sensor 104 may be directly connected via a wire harness or may be connected via an in-vehicle LAN (Local Area Network). .

  The electric curtain control device 101 (electric curtain opening / closing control means of the present invention) includes a control unit 101a and a drive unit 101b. The control unit 101a is configured as a normal computer, and includes a well-known CPU, ROM, RAM, input / output circuit (not shown), and a bus line connecting these configurations. The CPU performs opening / closing control of the electric curtain based on a command from the navigation device 100 by a program and data stored in the ROM or RAM. The electric curtain (not shown) can be manually opened and closed by an operation switch (not shown) connected to the electric curtain control device 101.

  The drive unit 101b is for opening and closing the electric curtain 106 installed along the side window or rear window (windshield glass) of the vehicle, and a magnet (not shown) in the curtain rail (not shown). And the coil is moved by energizing a coil (not shown) inserted in the curtain rail, and the electric curtain 106 is opened and closed by the movement of the coil.

  The electric curtain sensor 102 is for detecting the position of the electric curtain 106, and is configured by a known potentiometer or switch. Moreover, the movement between adjacent poles on the magnet of a coil (not shown) included in the drive unit 101b is taken as one step, and the electric curtain 106 is moved according to the number of movement steps from the fully open (or fully closed) position of the electric curtain 106. A method of detecting the position of may be used. The detected position information of the electric curtain 106 is sent to the navigation device 100 and the electric curtain control device 101. In addition, the structure of the electric curtain control apparatus 101 is not limited to the structure mentioned above.

  The wiper sensor 103 (wiper operation detecting means of the present invention) detects the operation state of a wiper (not shown), and sends the navigation device 100 the H level when the wiper is operating and the L level when the wiper is stopped. The state of the wiper switch (not shown) (OFF, intermittent operation, continuous operation) or the operation state of the wiper drive motor (not shown) (motor driving, motor stopped) is sent to the navigation device 100. It may be.

  The shift position sensor 104 detects the position of the shift lever, and sends the detected position information of the shift lever to the navigation device 100.

  The parking brake sensor 105 detects an operating state of the parking brake, and sends the H level to the navigation device 100 when the parking brake is operating and the L level when the parking brake is released.

  FIG. 2 is a block diagram showing the overall configuration of the navigation device 100 (for vehicle). The navigation device 100 includes a position detector 1, a map data input device 6, an operation switch group 7, a remote control (hereinafter referred to as remote control) sensor 11, a speaker 15 for performing voice guidance, a semiconductor memory device 9, a display device 10, and the like. Are connected to a control circuit 8, a remote control terminal 12, and a hard disk device (HDD) 21.

  A position detector 1 (position detecting means of the present invention) includes a known geomagnetic sensor 2, a gyroscope 3, a distance sensor 4, and a GPS receiver 5 for GPS that detects the position of a vehicle based on radio waves from a satellite. have. Since these sensors 2, 3, 4, and 5 have errors of different properties, they are configured to be used while being complemented by a plurality of sensors. Depending on the accuracy, a part of the sensors described above may be used, and further, a steering rotation sensor, a wheel sensor of each rolling wheel, or the like may be used.

  The map data input device 6 inputs so-called map matching data for improving the accuracy of position detection and various data including road data representing road connections from the storage medium 20 (the map data storage means of the present invention). It is a device. As a storage medium, a CD-ROM or a DVD is generally used because of the amount of data, but another medium such as a memory card may be used.

  As the operation switch group 7, for example, a touch switch or a mechanical switch integrated with the display device 10 is used. The touch switch is composed of infrared sensors that are finely arranged vertically and horizontally on the screen of the display device 10. For example, when the infrared ray is cut off with a finger, a touch pen, or the like, the cut-off position becomes a two-dimensional coordinate value (X, Y). A pointing device such as a mouse or a cursor may be used. Various instructions can be input by the operation switch group 7 and the remote control terminal 12.

  In addition to the operation switch group 7 and the remote control terminal 12, it is also possible to input various instructions using the voice recognition unit 30. In this method, when a voice is input from a microphone 31 connected to the voice recognition unit 30, the voice signal is subjected to voice recognition processing by a known voice recognition technique, and converted into an operation command corresponding to the result. .

  The transceiver 13 (reception means of the present invention) is a device for receiving road traffic information from, for example, a VICS (Vehicle Information and Communication System) center 14.

  Further, by connecting a mobile communication device such as a mobile phone 17 or a car phone to the communication unit 19, connection to an external network is possible and connection to the Internet or the like is possible. Furthermore, by communicating with an ETC (Automatic Toll Collection System, ETC: Electronic Toll Collection) vehicle-mounted device 16, the fee information received by the ETC vehicle-mounted device 16 from the ETC road device can be taken into the navigation device 100. Moreover, it is also possible to connect with an external network by the ETC onboard equipment 16. A configuration for communicating with the VICS center 14 via the cellular phone 17 or the ETC vehicle-mounted device 16 may be adopted.

  The control circuit 8 (the solar radiation condition predicting means, the electric curtain opening / closing determining means, the time data acquiring means, the date data acquiring means, the traveling direction detecting means, the weather determining means of the present invention) is configured as a normal computer and is a well-known CPU 81. ROM 82, RAM 83, I / O 84 which is an input / output circuit, and a bus line 85 for connecting these components. The CPU 81 controls the navigation program 21p and data stored in the HDD 21. The CPU 81 controls the reading / writing of data to / from the HDD 21.

  The HDD 21 may be configured to store map data. In addition, the user can independently write data to the HDD 21 in addition to auxiliary information for route guidance, entertainment information, and the like. The contents of these data can be rewritten by operating the operation switch group 7 and the remote control terminal 12 or by voice input. It is also possible to read the map data from the storage medium 20 using the map data input device 6 and update the contents of the HDD 21. Moreover, the structure which records the data received via in-vehicle LAN (Local Area Network) 22 which exchanges data between the other control apparatuses in a vehicle may be taken.

  The semiconductor memory device 9 is composed of a rewritable semiconductor such as a RAM or a flash ROM, and stores information and data necessary for the operation of the navigation device 100. The semiconductor storage device 9 is configured to retain the stored contents even when the accessory switch of the vehicle is turned off (that is, the navigation device 100 is turned off).

  Further, information and data necessary for the operation of the navigation device 100 may be stored in the HDD 21 instead of the semiconductor memory device 9. Further, information and data necessary for the operation of the navigation device 100 may be stored separately in the semiconductor storage device 9 and the HDD 21. In this case, since the access speed to the semiconductor storage device 9 is higher than that of the HDD 21, a relatively frequent read / write frequency is stored in the semiconductor storage device 9, and a relatively low read / write frequency is stored in the HDD 21. Good. The contents stored in the semiconductor memory device 9 may be backed up and saved in the HDD 21.

  The display device 10 is composed of a color liquid crystal display, and the screen of the display device 10 has a vehicle current position mark input from the position detector 1, map data input from the storage medium 20, and further on a map. The additional data such as the guidance route to be displayed on the screen is superimposed and displayed, and menu buttons for setting route guidance, guidance during route guidance, and switching operation of the screen are displayed on this screen.

  With this configuration, when the navigation program 21 p is activated by the CPU 81 of the control circuit 8, the navigation device 100 is operated by the driver operating the operation switch group 7 or the remote control terminal 12 or inputting voice from the microphone 31. When the route guidance process for displaying the destination route on the display device 10 is selected from the menu displayed on the display device 10, the following processing is performed.

  That is, when the driver inputs the destination based on the map on the display device 10, the current position of the vehicle is obtained based on the satellite data obtained from the GPS receiver 5, and the optimum position from the current position to the destination is determined. A process for obtaining a route is performed. Then, the guidance route is displayed on the road map on the display device 10 so as to guide the driver to the appropriate route. As a method for automatically setting an optimal route, a method such as the Dijkstra method is known. In addition, at least one of the display device 10 and the speaker 15 provides a notification according to the guidance during operation or the operation state.

  Hereinafter, the electric curtain control process will be described. This process is repeatedly executed together with other processes in the navigation program 21p. Whether to open / close the electric curtain 106 by predicting the presence / absence and direction of solar radiation based on one or at least two of date, time, season, positional relationship with surrounding buildings, and weather. Make a decision.

(Positional relationship with surrounding buildings)
The state of buildings around the vehicle is examined from the current position of the vehicle and the map data, and the solar radiation state around the vehicle is determined. For example, if the current position of the vehicle is in a downtown area, it is predicted that the solar radiation is weak, and if there are no high-rise buildings around the current position of the vehicle, the solar radiation is strong. Predict.

(Times of Day)
For the date and time information, a known clock IC for generating date / time data is incorporated in the control circuit 8, and a GPS signal is acquired from the GPS receiver 5 and date / time data included in the GPS signal is used. For example, a method of using date / time data included in communication data with the VICS center 14, a method of acquiring date / time data obtained by communication between the ETC on-vehicle device 16 and the ETC roadside device, or the like may be used. For example, it is predicted that the solar radiation is weak in the morning and evening time zones, and that the solar radiation is strong in the daytime hours. Of course, it is predicted that there will be no solar radiation at night.

(Date, season)
Information on the season is obtained from date data of date and time data. That is, it is determined whether the date belongs to the season of spring, summer, autumn or winter. The rainy season may be included during the season. In addition, the determination may be made by taking into account the seasonal characteristics of each region to which the current position of the vehicle belongs, such as in Hokkaido where there is no rainy season. For example, in Aichi Prefecture, it is predicted that the solar radiation is the strongest in the summer, the solar radiation is the strongest in spring and autumn, and the solar radiation is not strong in the winter. The state of solar radiation may be predicted for each month.

(the weather)
Based on the information from the wiper sensor 103, it is determined whether or not the wiper is operating. If the wiper is not operating, it is not rainy, so it can be determined that there is solar radiation. Also, a method of extracting weather information included in road traffic information received from the VICS center 14 or connecting to an external network via the mobile phone 17 or the ETC on-vehicle device 16 to acquire weather information on the current position of the vehicle. A method may be used. The presence or absence of solar radiation on the vehicle is determined from the acquired weather information.

(Vehicle direction)
The navigation device is provided with a function of storing the traveling locus of the vehicle in the HDD 21, the semiconductor storage device 9, or the storage medium 20. The traveling direction of the vehicle can be obtained from the traveling locus and map data. In addition, the traveling direction of the vehicle can be obtained from the position detector 1. The direction of solar radiation with respect to the vehicle can be determined from the obtained traveling direction of the vehicle. For example, when the traveling direction of the vehicle is westward, it can be predicted that solar radiation enters from the passenger seat side of the vehicle.

(Sun position)
The HDD 21, the semiconductor storage device 9, or the storage medium 20 stores the sun position according to the date and time information, acquires the sun position from the acquired date and time information, and determines the current position of the vehicle and the position of the sun. The solar radiation direction with respect to the vehicle may be predicted.

  If the presence / absence of solar radiation and the direction of solar radiation are predicted by one or a combination of at least two of the methods for predicting solar radiation conditions described above, if it is determined that there is solar radiation that should make the electric curtain 106 fully closed, navigation A full-close command is sent from the device 100 to the electric curtain 106 control device 101. In the electric curtain control device 101, the control unit 101a calculates a drive current value to be applied from the fully closed command sent and the current position of the electric curtain 106 obtained from the electric curtain sensor 102, and supplies the drive unit 101b with the drive current value to be applied. A drive control command is sent, and the drive unit 101b applies a drive current to a motor (not shown) based on the received drive control command to bring the electric curtain 106 into a fully closed state.

  Similarly, when it is determined that there is solar radiation that should bring the electric curtain 106 to the fully open state, a full open command is sent from the navigation device 100 to the electric curtain control device 101. In the electric curtain control device 101, the control unit 101a calculates the drive current value to be applied from the fully opened command sent and the current position of the electric curtain 106 obtained from the electric curtain sensor 102, and drives the drive unit 101b. A control command is sent, and the drive unit 101b applies a drive current to a motor (not shown) based on the sent drive control command to fully open the electric curtain 106.

  The electric curtain 106 may be set to an arbitrary position (for example, half open, half closed). The position of the electric curtain 106 in the case where it is determined that there is solar radiation for each condition of date, time, season, positional relationship with surrounding buildings, and weather, or all conditions at once, is stored in the HDD 21 or the semiconductor storage device 9. It is something to remember. The user may be able to set an arbitrary position. The user can set the date, time, season, positional relationship with surrounding buildings from the menu displayed on the display device 10 by the operation of the operation switch group 7 or the remote control terminal 12 or voice input from the microphone 31. The position setting screen of the electric curtain 106 with respect to the weather is displayed, and the position of the electric curtain is input for each parameter. Thereby, it becomes possible to cope with individual differences in the time when the sunlight feels strong.

  In addition, it may be possible to set whether or not the curtain opening / closing control is controlled by the control unit of the electric curtain 106 such as the rear, right side, and left side. When the occupant operates the electric curtain 106 after controlling the electric curtain in response to solar radiation, the occupant's operation may be given priority.

  For example, if it is determined that the current position of the vehicle is not in the shadow of a building, etc. during the daytime when the sun is strong (July to October) and the weather is good (the time is adjusted according to the season) The navigation device 100 detects the open / close state of the electric curtain 106 based on an input signal from the electric curtain sensor 102, and when the electric curtain 106 is open, the navigation device 100 notifies the electric curtain control device 101 to prevent the temperature inside the vehicle from rising. Control is performed by transmitting a signal so as to be fully closed. Alternatively, the solar radiation direction is predicted from the traveling direction of the vehicle, the season, etc., and control is performed by transmitting a signal so that only the electric curtain 106 of the window that is predicted to have solar radiation is closed.

  Conversely, during the cold season (December to February), control is performed so that the curtain is fully opened and sunlight is taken into the vehicle so as to raise the temperature in the vehicle as much as possible. This eliminates the need for the user to manually control the opening / closing of the electric curtain 106 in consideration of the surrounding conditions when parking, so that the opening / closing control of the electric curtain 106 is optimally performed. Will prolong the lifespan.

  It may be possible to set whether the opening / closing control of the electric curtain 106 is performed only during parking or during traveling. The parking position is detected when the shift position detected by the shift position sensor 104 is in the parking position and the parking brake state detected by the parking brake sensor 105 is turned on (parking brake operating state). to decide. If the parking condition is not satisfied, it is determined that the vehicle is traveling.

  Also, from the viewpoint of theft prevention, a place where the risk of theft is high due to a parking lot set by the user is registered in the HDD 21 or the semiconductor storage device 9 so that the electric curtain 106 can be obtained from the solar radiation situation and the risk of theft. It is also possible to select fully open or fully closed. This is because both the case where the danger increases by closing the electric curtain 106 and making it difficult to see the inside of the vehicle and the case where the danger increases by showing that there is something that can be stolen in the vehicle are conceivable. For example, even if it is determined that it is not necessary to close the electric curtain 106 only in the solar radiation situation, if the current position of the vehicle is registered as a frequently stolen area, the electric curtain 106 is selected to be fully closed. To do. On the other hand, even if the current position of the vehicle is registered as a theft-prone area, it may be selected that the electric curtain 106 is fully opened if no valuables are placed in the vehicle. These selection settings are made from the function setting menu screen of the navigation device 100. The setting contents are stored in the HDD 21 or the semiconductor storage device 9.

  Furthermore, in combination with an anti-theft device including at least one of a camera, infrared detector, microphone, vibration sensor, radio wave transmitter, ultrasonic generator, etc. When it is detected that an approach has been attempted, the navigation apparatus 100 acquires the detected information and sends a command to the electric curtain control apparatus 101. The electric curtain control apparatus 101 opens and closes the electric curtain 106, and a person It is also possible to increase the anti-theft effect by making it appear as if it is riding. The configuration of the anti-theft device is not particularly limited as long as the navigation device 100 can acquire approach information or intrusion information to the vehicle.

  Although the embodiments of the present invention have been described above, these are merely examples, and the present invention is not limited to these embodiments, and the knowledge of those skilled in the art can be used without departing from the spirit of the claims. Various modifications based on this are possible.

The block diagram which shows the structure of an electric curtain opening / closing apparatus. The block diagram which shows the structure of a navigation apparatus.

Explanation of symbols

1 Position detector (position detection means)
7 Operation switch group 8 Control circuit (sunlight condition prediction means, electric curtain open / close determination means, time data acquisition means, date data acquisition means, travel direction detection means, weather determination means)
9 Semiconductor memory device 13 Transceiver (Receiving means)
14 VICS Center 20 Storage Medium (Map Data Storage Means)
21 Hard disk drive (HDD)
DESCRIPTION OF SYMBOLS 100 Navigation apparatus 101 Electric curtain control apparatus (electric curtain opening / closing control means)
102 Electric curtain sensor 103 Wiper sensor (wiper motion detection means)
104 Shift position sensor 105 Parking brake sensor 106 Electric curtain

Claims (8)

An electric curtain installed along the windshield glass of the vehicle;
A solar radiation state predicting means for predicting a solar radiation situation including presence / absence of solar radiation to the vehicle and a direction of solar radiation;
An electric curtain open / close determining means for determining whether to open / close the electric curtain according to the predicted solar radiation situation;
Electric curtain opening and closing control means for opening and closing the electric curtain based on the determined result;
An electric curtain opening and closing device comprising:   A position detection means for detecting the position of the vehicle; and a map data storage means for storing map data including information on buildings around the road, wherein the solar radiation status prediction means is the position of the vehicle and the buildings around the road. The electric curtain opening and closing device according to claim 1, wherein the solar radiation situation is predicted based on the information.   The electric curtain opening and closing device according to claim 1 or 2, further comprising time data acquisition means for acquiring time data, wherein the solar radiation status prediction means predicts the solar radiation status based on the acquired time data.   4. The electric motor according to claim 1, further comprising a date data acquisition unit that acquires date data, wherein the solar radiation state prediction unit predicts the solar radiation state based on the acquired date data. 5. Curtain opening and closing device.   5. The vehicle according to claim 1, further comprising a traveling direction detecting unit that detects a traveling direction of the vehicle, wherein the solar radiation state predicting unit predicts the solar radiation state based on the detected traveling direction of the vehicle. The electric curtain opening and closing device according to item 1.   6. The solar radiation condition predicting means for determining the weather around the vehicle, wherein the solar radiation condition predicting means predicts the solar radiation condition based on the determined weather. Electric curtain opening and closing device.   The electric curtain opening and closing device according to claim 6, further comprising a wiper operation detecting unit that detects an operation of the wiper of the vehicle, wherein the weather determining unit determines the weather around the vehicle based on the operation of the wiper. . 8. The receiver according to claim 6, further comprising a receiving unit configured to receive weather information around the vehicle from an external device, wherein the weather determination unit determines weather around the vehicle based on the received weather information. Electric curtain opening and closing device.

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